* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (39 commits)
[PATCH] fix RLIM_NOFILE handling
[PATCH] get rid of corner case in dup3() entirely
[PATCH] remove remaining namei_{32,64}.h crap
[PATCH] get rid of indirect users of namei.h
[PATCH] get rid of __user_path_lookup_open
[PATCH] f_count may wrap around
[PATCH] dup3 fix
[PATCH] don't pass nameidata to __ncp_lookup_validate()
[PATCH] don't pass nameidata to gfs2_lookupi()
[PATCH] new (local) helper: user_path_parent()
[PATCH] sanitize __user_walk_fd() et.al.
[PATCH] preparation to __user_walk_fd cleanup
[PATCH] kill nameidata passing to permission(), rename to inode_permission()
[PATCH] take noexec checks to very few callers that care
Re: [PATCH 3/6] vfs: open_exec cleanup
[patch 4/4] vfs: immutable inode checking cleanup
[patch 3/4] fat: dont call notify_change
[patch 2/4] vfs: utimes cleanup
[patch 1/4] vfs: utimes: move owner check into inode_change_ok()
[PATCH] vfs: use kstrdup() and check failing allocation
...
--- /dev/null
+mISDN is a new modular ISDN driver, in the long term it should replace
+the old I4L driver architecture for passiv ISDN cards.
+It was designed to allow a broad range of applications and interfaces
+but only have the basic function in kernel, the interface to the user
+space is based on sockets with a own address family AF_ISDN.
+
static ssize_t start_show(struct firmware_map_entry *entry, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "0x%llx\n", entry->start);
+ return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+ (unsigned long long)entry->start);
}
static ssize_t end_show(struct firmware_map_entry *entry, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "0x%llx\n", entry->end);
+ return snprintf(buf, PAGE_SIZE, "0x%llx\n",
+ (unsigned long long)entry->end);
}
static ssize_t type_show(struct firmware_map_entry *entry, char *buf)
#
menuconfig ISDN
- tristate "ISDN support"
+ bool "ISDN support"
depends on NET
depends on !S390
---help---
if ISDN
+source "drivers/isdn/mISDN/Kconfig"
+
menuconfig ISDN_I4L
tristate "Old ISDN4Linux (deprecated)"
---help---
obj-$(CONFIG_ISDN_I4L) += i4l/
obj-$(CONFIG_ISDN_CAPI) += capi/
+obj-$(CONFIG_MISDN) += mISDN/
obj-$(CONFIG_ISDN_CAPI) += hardware/
obj-$(CONFIG_ISDN_DIVERSION) += divert/
obj-$(CONFIG_ISDN_DRV_HISAX) += hisax/
obj-$(CONFIG_CAPI_AVM) += avm/
obj-$(CONFIG_CAPI_EICON) += eicon/
+obj-$(CONFIG_MISDN) += mISDN/
--- /dev/null
+#
+# Hardware for mISDN
+#
+comment "mISDN hardware drivers"
+
+config MISDN_HFCPCI
+ tristate "Support for HFC PCI cards"
+ depends on MISDN
+ depends on PCI
+ help
+ Enable support for cards with Cologne Chip AG's
+ HFC PCI chip.
+
+config MISDN_HFCMULTI
+ tristate "Support for HFC multiport cards (HFC-4S/8S/E1)"
+ depends on PCI
+ depends on MISDN
+ help
+ Enable support for cards with Cologne Chip AG's HFC multiport
+ chip. There are three types of chips that are quite similar,
+ but the interface is different:
+ * HFC-4S (4 S/T interfaces on one chip)
+ * HFC-8S (8 S/T interfaces on one chip)
+ * HFC-E1 (E1 interface for 2Mbit ISDN)
+
--- /dev/null
+#
+# Makefile for the modular ISDN hardware drivers
+#
+#
+
+obj-$(CONFIG_MISDN_HFCPCI) += hfcpci.o
+obj-$(CONFIG_MISDN_HFCMULTI) += hfcmulti.o
--- /dev/null
+/*
+ * see notice in hfc_multi.c
+ */
+
+extern void ztdummy_extern_interrupt(void);
+extern void ztdummy_register_interrupt(void);
+extern int ztdummy_unregister_interrupt(void);
+
+#define DEBUG_HFCMULTI_FIFO 0x00010000
+#define DEBUG_HFCMULTI_CRC 0x00020000
+#define DEBUG_HFCMULTI_INIT 0x00040000
+#define DEBUG_HFCMULTI_PLXSD 0x00080000
+#define DEBUG_HFCMULTI_MODE 0x00100000
+#define DEBUG_HFCMULTI_MSG 0x00200000
+#define DEBUG_HFCMULTI_STATE 0x00400000
+#define DEBUG_HFCMULTI_SYNC 0x01000000
+#define DEBUG_HFCMULTI_DTMF 0x02000000
+#define DEBUG_HFCMULTI_LOCK 0x80000000
+
+#define PCI_ENA_REGIO 0x01
+#define PCI_ENA_MEMIO 0x02
+
+/*
+ * NOTE: some registers are assigned multiple times due to different modes
+ * also registers are assigned differen for HFC-4s/8s and HFC-E1
+ */
+
+/*
+#define MAX_FRAME_SIZE 2048
+*/
+
+struct hfc_chan {
+ struct dchannel *dch; /* link if channel is a D-channel */
+ struct bchannel *bch; /* link if channel is a B-channel */
+ int port; /* the interface port this */
+ /* channel is associated with */
+ int nt_timer; /* -1 if off, 0 if elapsed, >0 if running */
+ int los, ais, slip_tx, slip_rx, rdi; /* current alarms */
+ int jitter;
+ u_long cfg; /* port configuration */
+ int sync; /* sync state (used by E1) */
+ u_int protocol; /* current protocol */
+ int slot_tx; /* current pcm slot */
+ int bank_tx; /* current pcm bank */
+ int slot_rx;
+ int bank_rx;
+ int conf; /* conference setting of TX slot */
+ int txpending; /* if there is currently data in */
+ /* the FIFO 0=no, 1=yes, 2=splloop */
+ int rx_off; /* set to turn fifo receive off */
+ int coeff_count; /* curren coeff block */
+ s32 *coeff; /* memory pointer to 8 coeff blocks */
+};
+
+
+struct hfcm_hw {
+ u_char r_ctrl;
+ u_char r_irq_ctrl;
+ u_char r_cirm;
+ u_char r_ram_sz;
+ u_char r_pcm_md0;
+ u_char r_irqmsk_misc;
+ u_char r_dtmf;
+ u_char r_st_sync;
+ u_char r_sci_msk;
+ u_char r_tx0, r_tx1;
+ u_char a_st_ctrl0[8];
+ timer_t timer;
+};
+
+
+/* for each stack these flags are used (cfg) */
+#define HFC_CFG_NONCAP_TX 1 /* S/T TX interface has less capacity */
+#define HFC_CFG_DIS_ECHANNEL 2 /* disable E-channel processing */
+#define HFC_CFG_REG_ECHANNEL 3 /* register E-channel */
+#define HFC_CFG_OPTICAL 4 /* the E1 interface is optical */
+#define HFC_CFG_REPORT_LOS 5 /* the card should report loss of signal */
+#define HFC_CFG_REPORT_AIS 6 /* the card should report alarm ind. sign. */
+#define HFC_CFG_REPORT_SLIP 7 /* the card should report bit slips */
+#define HFC_CFG_REPORT_RDI 8 /* the card should report remote alarm */
+#define HFC_CFG_DTMF 9 /* enable DTMF-detection */
+#define HFC_CFG_CRC4 10 /* disable CRC-4 Multiframe mode, */
+ /* use double frame instead. */
+
+#define HFC_CHIP_EXRAM_128 0 /* external ram 128k */
+#define HFC_CHIP_EXRAM_512 1 /* external ram 256k */
+#define HFC_CHIP_REVISION0 2 /* old fifo handling */
+#define HFC_CHIP_PCM_SLAVE 3 /* PCM is slave */
+#define HFC_CHIP_PCM_MASTER 4 /* PCM is master */
+#define HFC_CHIP_RX_SYNC 5 /* disable pll sync for pcm */
+#define HFC_CHIP_DTMF 6 /* DTMF decoding is enabled */
+#define HFC_CHIP_ULAW 7 /* ULAW mode */
+#define HFC_CHIP_CLOCK2 8 /* double clock mode */
+#define HFC_CHIP_E1CLOCK_GET 9 /* always get clock from E1 interface */
+#define HFC_CHIP_E1CLOCK_PUT 10 /* always put clock from E1 interface */
+#define HFC_CHIP_WATCHDOG 11 /* whether we should send signals */
+ /* to the watchdog */
+#define HFC_CHIP_B410P 12 /* whether we have a b410p with echocan in */
+ /* hw */
+#define HFC_CHIP_PLXSD 13 /* whether we have a Speech-Design PLX */
+
+#define HFC_IO_MODE_PCIMEM 0x00 /* normal memory mapped IO */
+#define HFC_IO_MODE_REGIO 0x01 /* PCI io access */
+#define HFC_IO_MODE_PLXSD 0x02 /* access HFC via PLX9030 */
+
+/* table entry in the PCI devices list */
+struct hm_map {
+ char *vendor_name;
+ char *card_name;
+ int type;
+ int ports;
+ int clock2;
+ int leds;
+ int opticalsupport;
+ int dip_type;
+ int io_mode;
+};
+
+struct hfc_multi {
+ struct list_head list;
+ struct hm_map *mtyp;
+ int id;
+ int pcm; /* id of pcm bus */
+ int type;
+ int ports;
+
+ u_int irq; /* irq used by card */
+ u_int irqcnt;
+ struct pci_dev *pci_dev;
+ int io_mode; /* selects mode */
+#ifdef HFC_REGISTER_DEBUG
+ void (*HFC_outb)(struct hfc_multi *hc, u_char reg,
+ u_char val, const char *function, int line);
+ void (*HFC_outb_nodebug)(struct hfc_multi *hc, u_char reg,
+ u_char val, const char *function, int line);
+ u_char (*HFC_inb)(struct hfc_multi *hc, u_char reg,
+ const char *function, int line);
+ u_char (*HFC_inb_nodebug)(struct hfc_multi *hc, u_char reg,
+ const char *function, int line);
+ u_short (*HFC_inw)(struct hfc_multi *hc, u_char reg,
+ const char *function, int line);
+ u_short (*HFC_inw_nodebug)(struct hfc_multi *hc, u_char reg,
+ const char *function, int line);
+ void (*HFC_wait)(struct hfc_multi *hc,
+ const char *function, int line);
+ void (*HFC_wait_nodebug)(struct hfc_multi *hc,
+ const char *function, int line);
+#else
+ void (*HFC_outb)(struct hfc_multi *hc, u_char reg,
+ u_char val);
+ void (*HFC_outb_nodebug)(struct hfc_multi *hc, u_char reg,
+ u_char val);
+ u_char (*HFC_inb)(struct hfc_multi *hc, u_char reg);
+ u_char (*HFC_inb_nodebug)(struct hfc_multi *hc, u_char reg);
+ u_short (*HFC_inw)(struct hfc_multi *hc, u_char reg);
+ u_short (*HFC_inw_nodebug)(struct hfc_multi *hc, u_char reg);
+ void (*HFC_wait)(struct hfc_multi *hc);
+ void (*HFC_wait_nodebug)(struct hfc_multi *hc);
+#endif
+ void (*read_fifo)(struct hfc_multi *hc, u_char *data,
+ int len);
+ void (*write_fifo)(struct hfc_multi *hc, u_char *data,
+ int len);
+ u_long pci_origmembase, plx_origmembase, dsp_origmembase;
+ u_char *pci_membase; /* PCI memory (MUST BE BYTE POINTER) */
+ u_char *plx_membase; /* PLX memory */
+ u_char *dsp_membase; /* DSP on PLX */
+ u_long pci_iobase; /* PCI IO */
+ struct hfcm_hw hw; /* remember data of write-only-registers */
+
+ u_long chip; /* chip configuration */
+ int masterclk; /* port that provides master clock -1=off */
+ int dtmf; /* flag that dtmf is currently in process */
+ int Flen; /* F-buffer size */
+ int Zlen; /* Z-buffer size (must be int for calculation)*/
+ int max_trans; /* maximum transparent fifo fill */
+ int Zmin; /* Z-buffer offset */
+ int DTMFbase; /* base address of DTMF coefficients */
+
+ u_int slots; /* number of PCM slots */
+ u_int leds; /* type of leds */
+ u_int ledcount; /* used to animate leds */
+ u_long ledstate; /* save last state of leds */
+ int opticalsupport; /* has the e1 board */
+ /* an optical Interface */
+ int dslot; /* channel # of d-channel (E1) default 16 */
+
+ u_long wdcount; /* every 500 ms we need to */
+ /* send the watchdog a signal */
+ u_char wdbyte; /* watchdog toggle byte */
+ u_int activity[8]; /* if there is any action on this */
+ /* port (will be cleared after */
+ /* showing led-states) */
+ int e1_state; /* keep track of last state */
+ int e1_getclock; /* if sync is retrieved from interface */
+ int syncronized; /* keep track of existing sync interface */
+ int e1_resync; /* resync jobs */
+
+ spinlock_t lock; /* the lock */
+
+ /*
+ * the channel index is counted from 0, regardless where the channel
+ * is located on the hfc-channel.
+ * the bch->channel is equvalent to the hfc-channel
+ */
+ struct hfc_chan chan[32];
+ u_char created[8]; /* what port is created */
+ signed char slot_owner[256]; /* owner channel of slot */
+};
+
+/* PLX GPIOs */
+#define PLX_GPIO4_DIR_BIT 13
+#define PLX_GPIO4_BIT 14
+#define PLX_GPIO5_DIR_BIT 16
+#define PLX_GPIO5_BIT 17
+#define PLX_GPIO6_DIR_BIT 19
+#define PLX_GPIO6_BIT 20
+#define PLX_GPIO7_DIR_BIT 22
+#define PLX_GPIO7_BIT 23
+#define PLX_GPIO8_DIR_BIT 25
+#define PLX_GPIO8_BIT 26
+
+#define PLX_GPIO4 (1 << PLX_GPIO4_BIT)
+#define PLX_GPIO5 (1 << PLX_GPIO5_BIT)
+#define PLX_GPIO6 (1 << PLX_GPIO6_BIT)
+#define PLX_GPIO7 (1 << PLX_GPIO7_BIT)
+#define PLX_GPIO8 (1 << PLX_GPIO8_BIT)
+
+#define PLX_GPIO4_DIR (1 << PLX_GPIO4_DIR_BIT)
+#define PLX_GPIO5_DIR (1 << PLX_GPIO5_DIR_BIT)
+#define PLX_GPIO6_DIR (1 << PLX_GPIO6_DIR_BIT)
+#define PLX_GPIO7_DIR (1 << PLX_GPIO7_DIR_BIT)
+#define PLX_GPIO8_DIR (1 << PLX_GPIO8_DIR_BIT)
+
+#define PLX_TERM_ON PLX_GPIO7
+#define PLX_SLAVE_EN_N PLX_GPIO5
+#define PLX_MASTER_EN PLX_GPIO6
+#define PLX_SYNC_O_EN PLX_GPIO4
+#define PLX_DSP_RES_N PLX_GPIO8
+/* GPIO4..8 Enable & Set to OUT, SLAVE_EN_N = 1 */
+#define PLX_GPIOC_INIT (PLX_GPIO4_DIR | PLX_GPIO5_DIR | PLX_GPIO6_DIR \
+ | PLX_GPIO7_DIR | PLX_GPIO8_DIR | PLX_SLAVE_EN_N)
+
+/* PLX Interrupt Control/STATUS */
+#define PLX_INTCSR_LINTI1_ENABLE 0x01
+#define PLX_INTCSR_LINTI1_STATUS 0x04
+#define PLX_INTCSR_LINTI2_ENABLE 0x08
+#define PLX_INTCSR_LINTI2_STATUS 0x20
+#define PLX_INTCSR_PCIINT_ENABLE 0x40
+
+/* PLX Registers */
+#define PLX_INTCSR 0x4c
+#define PLX_CNTRL 0x50
+#define PLX_GPIOC 0x54
+
+
+/*
+ * REGISTER SETTING FOR HFC-4S/8S AND HFC-E1
+ */
+
+/* write only registers */
+#define R_CIRM 0x00
+#define R_CTRL 0x01
+#define R_BRG_PCM_CFG 0x02
+#define R_RAM_ADDR0 0x08
+#define R_RAM_ADDR1 0x09
+#define R_RAM_ADDR2 0x0A
+#define R_FIRST_FIFO 0x0B
+#define R_RAM_SZ 0x0C
+#define R_FIFO_MD 0x0D
+#define R_INC_RES_FIFO 0x0E
+#define R_FSM_IDX 0x0F
+#define R_FIFO 0x0F
+#define R_SLOT 0x10
+#define R_IRQMSK_MISC 0x11
+#define R_SCI_MSK 0x12
+#define R_IRQ_CTRL 0x13
+#define R_PCM_MD0 0x14
+#define R_PCM_MD1 0x15
+#define R_PCM_MD2 0x15
+#define R_SH0H 0x15
+#define R_SH1H 0x15
+#define R_SH0L 0x15
+#define R_SH1L 0x15
+#define R_SL_SEL0 0x15
+#define R_SL_SEL1 0x15
+#define R_SL_SEL2 0x15
+#define R_SL_SEL3 0x15
+#define R_SL_SEL4 0x15
+#define R_SL_SEL5 0x15
+#define R_SL_SEL6 0x15
+#define R_SL_SEL7 0x15
+#define R_ST_SEL 0x16
+#define R_ST_SYNC 0x17
+#define R_CONF_EN 0x18
+#define R_TI_WD 0x1A
+#define R_BERT_WD_MD 0x1B
+#define R_DTMF 0x1C
+#define R_DTMF_N 0x1D
+#define R_E1_WR_STA 0x20
+#define R_E1_RD_STA 0x20
+#define R_LOS0 0x22
+#define R_LOS1 0x23
+#define R_RX0 0x24
+#define R_RX_FR0 0x25
+#define R_RX_FR1 0x26
+#define R_TX0 0x28
+#define R_TX1 0x29
+#define R_TX_FR0 0x2C
+
+#define R_TX_FR1 0x2D
+#define R_TX_FR2 0x2E
+#define R_JATT_ATT 0x2F /* undocumented */
+#define A_ST_RD_STATE 0x30
+#define A_ST_WR_STATE 0x30
+#define R_RX_OFF 0x30
+#define A_ST_CTRL0 0x31
+#define R_SYNC_OUT 0x31
+#define A_ST_CTRL1 0x32
+#define A_ST_CTRL2 0x33
+#define A_ST_SQ_WR 0x34
+#define R_TX_OFF 0x34
+#define R_SYNC_CTRL 0x35
+#define A_ST_CLK_DLY 0x37
+#define R_PWM0 0x38
+#define R_PWM1 0x39
+#define A_ST_B1_TX 0x3C
+#define A_ST_B2_TX 0x3D
+#define A_ST_D_TX 0x3E
+#define R_GPIO_OUT0 0x40
+#define R_GPIO_OUT1 0x41
+#define R_GPIO_EN0 0x42
+#define R_GPIO_EN1 0x43
+#define R_GPIO_SEL 0x44
+#define R_BRG_CTRL 0x45
+#define R_PWM_MD 0x46
+#define R_BRG_MD 0x47
+#define R_BRG_TIM0 0x48
+#define R_BRG_TIM1 0x49
+#define R_BRG_TIM2 0x4A
+#define R_BRG_TIM3 0x4B
+#define R_BRG_TIM_SEL01 0x4C
+#define R_BRG_TIM_SEL23 0x4D
+#define R_BRG_TIM_SEL45 0x4E
+#define R_BRG_TIM_SEL67 0x4F
+#define A_SL_CFG 0xD0
+#define A_CONF 0xD1
+#define A_CH_MSK 0xF4
+#define A_CON_HDLC 0xFA
+#define A_SUBCH_CFG 0xFB
+#define A_CHANNEL 0xFC
+#define A_FIFO_SEQ 0xFD
+#define A_IRQ_MSK 0xFF
+
+/* read only registers */
+#define A_Z12 0x04
+#define A_Z1L 0x04
+#define A_Z1 0x04
+#define A_Z1H 0x05
+#define A_Z2L 0x06
+#define A_Z2 0x06
+#define A_Z2H 0x07
+#define A_F1 0x0C
+#define A_F12 0x0C
+#define A_F2 0x0D
+#define R_IRQ_OVIEW 0x10
+#define R_IRQ_MISC 0x11
+#define R_IRQ_STATECH 0x12
+#define R_CONF_OFLOW 0x14
+#define R_RAM_USE 0x15
+#define R_CHIP_ID 0x16
+#define R_BERT_STA 0x17
+#define R_F0_CNTL 0x18
+#define R_F0_CNTH 0x19
+#define R_BERT_EC 0x1A
+#define R_BERT_ECL 0x1A
+#define R_BERT_ECH 0x1B
+#define R_STATUS 0x1C
+#define R_CHIP_RV 0x1F
+#define R_STATE 0x20
+#define R_SYNC_STA 0x24
+#define R_RX_SL0_0 0x25
+#define R_RX_SL0_1 0x26
+#define R_RX_SL0_2 0x27
+#define R_JATT_DIR 0x2b /* undocumented */
+#define R_SLIP 0x2c
+#define A_ST_RD_STA 0x30
+#define R_FAS_EC 0x30
+#define R_FAS_ECL 0x30
+#define R_FAS_ECH 0x31
+#define R_VIO_EC 0x32
+#define R_VIO_ECL 0x32
+#define R_VIO_ECH 0x33
+#define A_ST_SQ_RD 0x34
+#define R_CRC_EC 0x34
+#define R_CRC_ECL 0x34
+#define R_CRC_ECH 0x35
+#define R_E_EC 0x36
+#define R_E_ECL 0x36
+#define R_E_ECH 0x37
+#define R_SA6_SA13_EC 0x38
+#define R_SA6_SA13_ECL 0x38
+#define R_SA6_SA13_ECH 0x39
+#define R_SA6_SA23_EC 0x3A
+#define R_SA6_SA23_ECL 0x3A
+#define R_SA6_SA23_ECH 0x3B
+#define A_ST_B1_RX 0x3C
+#define A_ST_B2_RX 0x3D
+#define A_ST_D_RX 0x3E
+#define A_ST_E_RX 0x3F
+#define R_GPIO_IN0 0x40
+#define R_GPIO_IN1 0x41
+#define R_GPI_IN0 0x44
+#define R_GPI_IN1 0x45
+#define R_GPI_IN2 0x46
+#define R_GPI_IN3 0x47
+#define R_INT_DATA 0x88
+#define R_IRQ_FIFO_BL0 0xC8
+#define R_IRQ_FIFO_BL1 0xC9
+#define R_IRQ_FIFO_BL2 0xCA
+#define R_IRQ_FIFO_BL3 0xCB
+#define R_IRQ_FIFO_BL4 0xCC
+#define R_IRQ_FIFO_BL5 0xCD
+#define R_IRQ_FIFO_BL6 0xCE
+#define R_IRQ_FIFO_BL7 0xCF
+
+/* read and write registers */
+#define A_FIFO_DATA0 0x80
+#define A_FIFO_DATA1 0x80
+#define A_FIFO_DATA2 0x80
+#define A_FIFO_DATA0_NOINC 0x84
+#define A_FIFO_DATA1_NOINC 0x84
+#define A_FIFO_DATA2_NOINC 0x84
+#define R_RAM_DATA 0xC0
+
+
+/*
+ * BIT SETTING FOR HFC-4S/8S AND HFC-E1
+ */
+
+/* chapter 2: universal bus interface */
+/* R_CIRM */
+#define V_IRQ_SEL 0x01
+#define V_SRES 0x08
+#define V_HFCRES 0x10
+#define V_PCMRES 0x20
+#define V_STRES 0x40
+#define V_ETRES 0x40
+#define V_RLD_EPR 0x80
+/* R_CTRL */
+#define V_FIFO_LPRIO 0x02
+#define V_SLOW_RD 0x04
+#define V_EXT_RAM 0x08
+#define V_CLK_OFF 0x20
+#define V_ST_CLK 0x40
+/* R_RAM_ADDR0 */
+#define V_RAM_ADDR2 0x01
+#define V_ADDR_RES 0x40
+#define V_ADDR_INC 0x80
+/* R_RAM_SZ */
+#define V_RAM_SZ 0x01
+#define V_PWM0_16KHZ 0x10
+#define V_PWM1_16KHZ 0x20
+#define V_FZ_MD 0x80
+/* R_CHIP_ID */
+#define V_PNP_IRQ 0x01
+#define V_CHIP_ID 0x10
+
+/* chapter 3: data flow */
+/* R_FIRST_FIFO */
+#define V_FIRST_FIRO_DIR 0x01
+#define V_FIRST_FIFO_NUM 0x02
+/* R_FIFO_MD */
+#define V_FIFO_MD 0x01
+#define V_CSM_MD 0x04
+#define V_FSM_MD 0x08
+#define V_FIFO_SZ 0x10
+/* R_FIFO */
+#define V_FIFO_DIR 0x01
+#define V_FIFO_NUM 0x02
+#define V_REV 0x80
+/* R_SLOT */
+#define V_SL_DIR 0x01
+#define V_SL_NUM 0x02
+/* A_SL_CFG */
+#define V_CH_DIR 0x01
+#define V_CH_SEL 0x02
+#define V_ROUTING 0x40
+/* A_CON_HDLC */
+#define V_IFF 0x01
+#define V_HDLC_TRP 0x02
+#define V_TRP_IRQ 0x04
+#define V_DATA_FLOW 0x20
+/* A_SUBCH_CFG */
+#define V_BIT_CNT 0x01
+#define V_START_BIT 0x08
+#define V_LOOP_FIFO 0x40
+#define V_INV_DATA 0x80
+/* A_CHANNEL */
+#define V_CH_DIR0 0x01
+#define V_CH_NUM0 0x02
+/* A_FIFO_SEQ */
+#define V_NEXT_FIFO_DIR 0x01
+#define V_NEXT_FIFO_NUM 0x02
+#define V_SEQ_END 0x40
+
+/* chapter 4: FIFO handling and HDLC controller */
+/* R_INC_RES_FIFO */
+#define V_INC_F 0x01
+#define V_RES_F 0x02
+#define V_RES_LOST 0x04
+
+/* chapter 5: S/T interface */
+/* R_SCI_MSK */
+#define V_SCI_MSK_ST0 0x01
+#define V_SCI_MSK_ST1 0x02
+#define V_SCI_MSK_ST2 0x04
+#define V_SCI_MSK_ST3 0x08
+#define V_SCI_MSK_ST4 0x10
+#define V_SCI_MSK_ST5 0x20
+#define V_SCI_MSK_ST6 0x40
+#define V_SCI_MSK_ST7 0x80
+/* R_ST_SEL */
+#define V_ST_SEL 0x01
+#define V_MULT_ST 0x08
+/* R_ST_SYNC */
+#define V_SYNC_SEL 0x01
+#define V_AUTO_SYNC 0x08
+/* A_ST_WR_STA */
+#define V_ST_SET_STA 0x01
+#define V_ST_LD_STA 0x10
+#define V_ST_ACT 0x20
+#define V_SET_G2_G3 0x80
+/* A_ST_CTRL0 */
+#define V_B1_EN 0x01
+#define V_B2_EN 0x02
+#define V_ST_MD 0x04
+#define V_D_PRIO 0x08
+#define V_SQ_EN 0x10
+#define V_96KHZ 0x20
+#define V_TX_LI 0x40
+#define V_ST_STOP 0x80
+/* A_ST_CTRL1 */
+#define V_G2_G3_EN 0x01
+#define V_D_HI 0x04
+#define V_E_IGNO 0x08
+#define V_E_LO 0x10
+#define V_B12_SWAP 0x80
+/* A_ST_CTRL2 */
+#define V_B1_RX_EN 0x01
+#define V_B2_RX_EN 0x02
+#define V_ST_TRIS 0x40
+/* A_ST_CLK_DLY */
+#define V_ST_CK_DLY 0x01
+#define V_ST_SMPL 0x10
+/* A_ST_D_TX */
+#define V_ST_D_TX 0x40
+/* R_IRQ_STATECH */
+#define V_SCI_ST0 0x01
+#define V_SCI_ST1 0x02
+#define V_SCI_ST2 0x04
+#define V_SCI_ST3 0x08
+#define V_SCI_ST4 0x10
+#define V_SCI_ST5 0x20
+#define V_SCI_ST6 0x40
+#define V_SCI_ST7 0x80
+/* A_ST_RD_STA */
+#define V_ST_STA 0x01
+#define V_FR_SYNC_ST 0x10
+#define V_TI2_EXP 0x20
+#define V_INFO0 0x40
+#define V_G2_G3 0x80
+/* A_ST_SQ_RD */
+#define V_ST_SQ 0x01
+#define V_MF_RX_RDY 0x10
+#define V_MF_TX_RDY 0x80
+/* A_ST_D_RX */
+#define V_ST_D_RX 0x40
+/* A_ST_E_RX */
+#define V_ST_E_RX 0x40
+
+/* chapter 5: E1 interface */
+/* R_E1_WR_STA */
+/* R_E1_RD_STA */
+#define V_E1_SET_STA 0x01
+#define V_E1_LD_STA 0x10
+/* R_RX0 */
+#define V_RX_CODE 0x01
+#define V_RX_FBAUD 0x04
+#define V_RX_CMI 0x08
+#define V_RX_INV_CMI 0x10
+#define V_RX_INV_CLK 0x20
+#define V_RX_INV_DATA 0x40
+#define V_AIS_ITU 0x80
+/* R_RX_FR0 */
+#define V_NO_INSYNC 0x01
+#define V_AUTO_RESYNC 0x02
+#define V_AUTO_RECO 0x04
+#define V_SWORD_COND 0x08
+#define V_SYNC_LOSS 0x10
+#define V_XCRC_SYNC 0x20
+#define V_MF_RESYNC 0x40
+#define V_RESYNC 0x80
+/* R_RX_FR1 */
+#define V_RX_MF 0x01
+#define V_RX_MF_SYNC 0x02
+#define V_RX_SL0_RAM 0x04
+#define V_ERR_SIM 0x20
+#define V_RES_NMF 0x40
+/* R_TX0 */
+#define V_TX_CODE 0x01
+#define V_TX_FBAUD 0x04
+#define V_TX_CMI_CODE 0x08
+#define V_TX_INV_CMI_CODE 0x10
+#define V_TX_INV_CLK 0x20
+#define V_TX_INV_DATA 0x40
+#define V_OUT_EN 0x80
+/* R_TX1 */
+#define V_INV_CLK 0x01
+#define V_EXCHG_DATA_LI 0x02
+#define V_AIS_OUT 0x04
+#define V_ATX 0x20
+#define V_NTRI 0x40
+#define V_AUTO_ERR_RES 0x80
+/* R_TX_FR0 */
+#define V_TRP_FAS 0x01
+#define V_TRP_NFAS 0x02
+#define V_TRP_RAL 0x04
+#define V_TRP_SA 0x08
+/* R_TX_FR1 */
+#define V_TX_FAS 0x01
+#define V_TX_NFAS 0x02
+#define V_TX_RAL 0x04
+#define V_TX_SA 0x08
+/* R_TX_FR2 */
+#define V_TX_MF 0x01
+#define V_TRP_SL0 0x02
+#define V_TX_SL0_RAM 0x04
+#define V_TX_E 0x10
+#define V_NEG_E 0x20
+#define V_XS12_ON 0x40
+#define V_XS15_ON 0x80
+/* R_RX_OFF */
+#define V_RX_SZ 0x01
+#define V_RX_INIT 0x04
+/* R_SYNC_OUT */
+#define V_SYNC_E1_RX 0x01
+#define V_IPATS0 0x20
+#define V_IPATS1 0x40
+#define V_IPATS2 0x80
+/* R_TX_OFF */
+#define V_TX_SZ 0x01
+#define V_TX_INIT 0x04
+/* R_SYNC_CTRL */
+#define V_EXT_CLK_SYNC 0x01
+#define V_SYNC_OFFS 0x02
+#define V_PCM_SYNC 0x04
+#define V_NEG_CLK 0x08
+#define V_HCLK 0x10
+/*
+#define V_JATT_AUTO_DEL 0x20
+#define V_JATT_AUTO 0x40
+*/
+#define V_JATT_OFF 0x80
+/* R_STATE */
+#define V_E1_STA 0x01
+#define V_ALT_FR_RX 0x40
+#define V_ALT_FR_TX 0x80
+/* R_SYNC_STA */
+#define V_RX_STA 0x01
+#define V_FR_SYNC_E1 0x04
+#define V_SIG_LOS 0x08
+#define V_MFA_STA 0x10
+#define V_AIS 0x40
+#define V_NO_MF_SYNC 0x80
+/* R_RX_SL0_0 */
+#define V_SI_FAS 0x01
+#define V_SI_NFAS 0x02
+#define V_A 0x04
+#define V_CRC_OK 0x08
+#define V_TX_E1 0x10
+#define V_TX_E2 0x20
+#define V_RX_E1 0x40
+#define V_RX_E2 0x80
+/* R_SLIP */
+#define V_SLIP_RX 0x01
+#define V_FOSLIP_RX 0x08
+#define V_SLIP_TX 0x10
+#define V_FOSLIP_TX 0x80
+
+/* chapter 6: PCM interface */
+/* R_PCM_MD0 */
+#define V_PCM_MD 0x01
+#define V_C4_POL 0x02
+#define V_F0_NEG 0x04
+#define V_F0_LEN 0x08
+#define V_PCM_ADDR 0x10
+/* R_SL_SEL0 */
+#define V_SL_SEL0 0x01
+#define V_SH_SEL0 0x80
+/* R_SL_SEL1 */
+#define V_SL_SEL1 0x01
+#define V_SH_SEL1 0x80
+/* R_SL_SEL2 */
+#define V_SL_SEL2 0x01
+#define V_SH_SEL2 0x80
+/* R_SL_SEL3 */
+#define V_SL_SEL3 0x01
+#define V_SH_SEL3 0x80
+/* R_SL_SEL4 */
+#define V_SL_SEL4 0x01
+#define V_SH_SEL4 0x80
+/* R_SL_SEL5 */
+#define V_SL_SEL5 0x01
+#define V_SH_SEL5 0x80
+/* R_SL_SEL6 */
+#define V_SL_SEL6 0x01
+#define V_SH_SEL6 0x80
+/* R_SL_SEL7 */
+#define V_SL_SEL7 0x01
+#define V_SH_SEL7 0x80
+/* R_PCM_MD1 */
+#define V_ODEC_CON 0x01
+#define V_PLL_ADJ 0x04
+#define V_PCM_DR 0x10
+#define V_PCM_LOOP 0x40
+/* R_PCM_MD2 */
+#define V_SYNC_PLL 0x02
+#define V_SYNC_SRC 0x04
+#define V_SYNC_OUT 0x08
+#define V_ICR_FR_TIME 0x40
+#define V_EN_PLL 0x80
+
+/* chapter 7: pulse width modulation */
+/* R_PWM_MD */
+#define V_EXT_IRQ_EN 0x08
+#define V_PWM0_MD 0x10
+#define V_PWM1_MD 0x40
+
+/* chapter 8: multiparty audio conferences */
+/* R_CONF_EN */
+#define V_CONF_EN 0x01
+#define V_ULAW 0x80
+/* A_CONF */
+#define V_CONF_NUM 0x01
+#define V_NOISE_SUPPR 0x08
+#define V_ATT_LEV 0x20
+#define V_CONF_SL 0x80
+/* R_CONF_OFLOW */
+#define V_CONF_OFLOW0 0x01
+#define V_CONF_OFLOW1 0x02
+#define V_CONF_OFLOW2 0x04
+#define V_CONF_OFLOW3 0x08
+#define V_CONF_OFLOW4 0x10
+#define V_CONF_OFLOW5 0x20
+#define V_CONF_OFLOW6 0x40
+#define V_CONF_OFLOW7 0x80
+
+/* chapter 9: DTMF contoller */
+/* R_DTMF0 */
+#define V_DTMF_EN 0x01
+#define V_HARM_SEL 0x02
+#define V_DTMF_RX_CH 0x04
+#define V_DTMF_STOP 0x08
+#define V_CHBL_SEL 0x10
+#define V_RST_DTMF 0x40
+#define V_ULAW_SEL 0x80
+
+/* chapter 10: BERT */
+/* R_BERT_WD_MD */
+#define V_PAT_SEQ 0x01
+#define V_BERT_ERR 0x08
+#define V_AUTO_WD_RES 0x20
+#define V_WD_RES 0x80
+/* R_BERT_STA */
+#define V_BERT_SYNC_SRC 0x01
+#define V_BERT_SYNC 0x10
+#define V_BERT_INV_DATA 0x20
+
+/* chapter 11: auxiliary interface */
+/* R_BRG_PCM_CFG */
+#define V_BRG_EN 0x01
+#define V_BRG_MD 0x02
+#define V_PCM_CLK 0x20
+#define V_ADDR_WRDLY 0x40
+/* R_BRG_CTRL */
+#define V_BRG_CS 0x01
+#define V_BRG_ADDR 0x08
+#define V_BRG_CS_SRC 0x80
+/* R_BRG_MD */
+#define V_BRG_MD0 0x01
+#define V_BRG_MD1 0x02
+#define V_BRG_MD2 0x04
+#define V_BRG_MD3 0x08
+#define V_BRG_MD4 0x10
+#define V_BRG_MD5 0x20
+#define V_BRG_MD6 0x40
+#define V_BRG_MD7 0x80
+/* R_BRG_TIM0 */
+#define V_BRG_TIM0_IDLE 0x01
+#define V_BRG_TIM0_CLK 0x10
+/* R_BRG_TIM1 */
+#define V_BRG_TIM1_IDLE 0x01
+#define V_BRG_TIM1_CLK 0x10
+/* R_BRG_TIM2 */
+#define V_BRG_TIM2_IDLE 0x01
+#define V_BRG_TIM2_CLK 0x10
+/* R_BRG_TIM3 */
+#define V_BRG_TIM3_IDLE 0x01
+#define V_BRG_TIM3_CLK 0x10
+/* R_BRG_TIM_SEL01 */
+#define V_BRG_WR_SEL0 0x01
+#define V_BRG_RD_SEL0 0x04
+#define V_BRG_WR_SEL1 0x10
+#define V_BRG_RD_SEL1 0x40
+/* R_BRG_TIM_SEL23 */
+#define V_BRG_WR_SEL2 0x01
+#define V_BRG_RD_SEL2 0x04
+#define V_BRG_WR_SEL3 0x10
+#define V_BRG_RD_SEL3 0x40
+/* R_BRG_TIM_SEL45 */
+#define V_BRG_WR_SEL4 0x01
+#define V_BRG_RD_SEL4 0x04
+#define V_BRG_WR_SEL5 0x10
+#define V_BRG_RD_SEL5 0x40
+/* R_BRG_TIM_SEL67 */
+#define V_BRG_WR_SEL6 0x01
+#define V_BRG_RD_SEL6 0x04
+#define V_BRG_WR_SEL7 0x10
+#define V_BRG_RD_SEL7 0x40
+
+/* chapter 12: clock, reset, interrupt, timer and watchdog */
+/* R_IRQMSK_MISC */
+#define V_STA_IRQMSK 0x01
+#define V_TI_IRQMSK 0x02
+#define V_PROC_IRQMSK 0x04
+#define V_DTMF_IRQMSK 0x08
+#define V_IRQ1S_MSK 0x10
+#define V_SA6_IRQMSK 0x20
+#define V_RX_EOMF_MSK 0x40
+#define V_TX_EOMF_MSK 0x80
+/* R_IRQ_CTRL */
+#define V_FIFO_IRQ 0x01
+#define V_GLOB_IRQ_EN 0x08
+#define V_IRQ_POL 0x10
+/* R_TI_WD */
+#define V_EV_TS 0x01
+#define V_WD_TS 0x10
+/* A_IRQ_MSK */
+#define V_IRQ 0x01
+#define V_BERT_EN 0x02
+#define V_MIX_IRQ 0x04
+/* R_IRQ_OVIEW */
+#define V_IRQ_FIFO_BL0 0x01
+#define V_IRQ_FIFO_BL1 0x02
+#define V_IRQ_FIFO_BL2 0x04
+#define V_IRQ_FIFO_BL3 0x08
+#define V_IRQ_FIFO_BL4 0x10
+#define V_IRQ_FIFO_BL5 0x20
+#define V_IRQ_FIFO_BL6 0x40
+#define V_IRQ_FIFO_BL7 0x80
+/* R_IRQ_MISC */
+#define V_STA_IRQ 0x01
+#define V_TI_IRQ 0x02
+#define V_IRQ_PROC 0x04
+#define V_DTMF_IRQ 0x08
+#define V_IRQ1S 0x10
+#define V_SA6_IRQ 0x20
+#define V_RX_EOMF 0x40
+#define V_TX_EOMF 0x80
+/* R_STATUS */
+#define V_BUSY 0x01
+#define V_PROC 0x02
+#define V_DTMF_STA 0x04
+#define V_LOST_STA 0x08
+#define V_SYNC_IN 0x10
+#define V_EXT_IRQSTA 0x20
+#define V_MISC_IRQSTA 0x40
+#define V_FR_IRQSTA 0x80
+/* R_IRQ_FIFO_BL0 */
+#define V_IRQ_FIFO0_TX 0x01
+#define V_IRQ_FIFO0_RX 0x02
+#define V_IRQ_FIFO1_TX 0x04
+#define V_IRQ_FIFO1_RX 0x08
+#define V_IRQ_FIFO2_TX 0x10
+#define V_IRQ_FIFO2_RX 0x20
+#define V_IRQ_FIFO3_TX 0x40
+#define V_IRQ_FIFO3_RX 0x80
+/* R_IRQ_FIFO_BL1 */
+#define V_IRQ_FIFO4_TX 0x01
+#define V_IRQ_FIFO4_RX 0x02
+#define V_IRQ_FIFO5_TX 0x04
+#define V_IRQ_FIFO5_RX 0x08
+#define V_IRQ_FIFO6_TX 0x10
+#define V_IRQ_FIFO6_RX 0x20
+#define V_IRQ_FIFO7_TX 0x40
+#define V_IRQ_FIFO7_RX 0x80
+/* R_IRQ_FIFO_BL2 */
+#define V_IRQ_FIFO8_TX 0x01
+#define V_IRQ_FIFO8_RX 0x02
+#define V_IRQ_FIFO9_TX 0x04
+#define V_IRQ_FIFO9_RX 0x08
+#define V_IRQ_FIFO10_TX 0x10
+#define V_IRQ_FIFO10_RX 0x20
+#define V_IRQ_FIFO11_TX 0x40
+#define V_IRQ_FIFO11_RX 0x80
+/* R_IRQ_FIFO_BL3 */
+#define V_IRQ_FIFO12_TX 0x01
+#define V_IRQ_FIFO12_RX 0x02
+#define V_IRQ_FIFO13_TX 0x04
+#define V_IRQ_FIFO13_RX 0x08
+#define V_IRQ_FIFO14_TX 0x10
+#define V_IRQ_FIFO14_RX 0x20
+#define V_IRQ_FIFO15_TX 0x40
+#define V_IRQ_FIFO15_RX 0x80
+/* R_IRQ_FIFO_BL4 */
+#define V_IRQ_FIFO16_TX 0x01
+#define V_IRQ_FIFO16_RX 0x02
+#define V_IRQ_FIFO17_TX 0x04
+#define V_IRQ_FIFO17_RX 0x08
+#define V_IRQ_FIFO18_TX 0x10
+#define V_IRQ_FIFO18_RX 0x20
+#define V_IRQ_FIFO19_TX 0x40
+#define V_IRQ_FIFO19_RX 0x80
+/* R_IRQ_FIFO_BL5 */
+#define V_IRQ_FIFO20_TX 0x01
+#define V_IRQ_FIFO20_RX 0x02
+#define V_IRQ_FIFO21_TX 0x04
+#define V_IRQ_FIFO21_RX 0x08
+#define V_IRQ_FIFO22_TX 0x10
+#define V_IRQ_FIFO22_RX 0x20
+#define V_IRQ_FIFO23_TX 0x40
+#define V_IRQ_FIFO23_RX 0x80
+/* R_IRQ_FIFO_BL6 */
+#define V_IRQ_FIFO24_TX 0x01
+#define V_IRQ_FIFO24_RX 0x02
+#define V_IRQ_FIFO25_TX 0x04
+#define V_IRQ_FIFO25_RX 0x08
+#define V_IRQ_FIFO26_TX 0x10
+#define V_IRQ_FIFO26_RX 0x20
+#define V_IRQ_FIFO27_TX 0x40
+#define V_IRQ_FIFO27_RX 0x80
+/* R_IRQ_FIFO_BL7 */
+#define V_IRQ_FIFO28_TX 0x01
+#define V_IRQ_FIFO28_RX 0x02
+#define V_IRQ_FIFO29_TX 0x04
+#define V_IRQ_FIFO29_RX 0x08
+#define V_IRQ_FIFO30_TX 0x10
+#define V_IRQ_FIFO30_RX 0x20
+#define V_IRQ_FIFO31_TX 0x40
+#define V_IRQ_FIFO31_RX 0x80
+
+/* chapter 13: general purpose I/O pins (GPIO) and input pins (GPI) */
+/* R_GPIO_OUT0 */
+#define V_GPIO_OUT0 0x01
+#define V_GPIO_OUT1 0x02
+#define V_GPIO_OUT2 0x04
+#define V_GPIO_OUT3 0x08
+#define V_GPIO_OUT4 0x10
+#define V_GPIO_OUT5 0x20
+#define V_GPIO_OUT6 0x40
+#define V_GPIO_OUT7 0x80
+/* R_GPIO_OUT1 */
+#define V_GPIO_OUT8 0x01
+#define V_GPIO_OUT9 0x02
+#define V_GPIO_OUT10 0x04
+#define V_GPIO_OUT11 0x08
+#define V_GPIO_OUT12 0x10
+#define V_GPIO_OUT13 0x20
+#define V_GPIO_OUT14 0x40
+#define V_GPIO_OUT15 0x80
+/* R_GPIO_EN0 */
+#define V_GPIO_EN0 0x01
+#define V_GPIO_EN1 0x02
+#define V_GPIO_EN2 0x04
+#define V_GPIO_EN3 0x08
+#define V_GPIO_EN4 0x10
+#define V_GPIO_EN5 0x20
+#define V_GPIO_EN6 0x40
+#define V_GPIO_EN7 0x80
+/* R_GPIO_EN1 */
+#define V_GPIO_EN8 0x01
+#define V_GPIO_EN9 0x02
+#define V_GPIO_EN10 0x04
+#define V_GPIO_EN11 0x08
+#define V_GPIO_EN12 0x10
+#define V_GPIO_EN13 0x20
+#define V_GPIO_EN14 0x40
+#define V_GPIO_EN15 0x80
+/* R_GPIO_SEL */
+#define V_GPIO_SEL0 0x01
+#define V_GPIO_SEL1 0x02
+#define V_GPIO_SEL2 0x04
+#define V_GPIO_SEL3 0x08
+#define V_GPIO_SEL4 0x10
+#define V_GPIO_SEL5 0x20
+#define V_GPIO_SEL6 0x40
+#define V_GPIO_SEL7 0x80
+/* R_GPIO_IN0 */
+#define V_GPIO_IN0 0x01
+#define V_GPIO_IN1 0x02
+#define V_GPIO_IN2 0x04
+#define V_GPIO_IN3 0x08
+#define V_GPIO_IN4 0x10
+#define V_GPIO_IN5 0x20
+#define V_GPIO_IN6 0x40
+#define V_GPIO_IN7 0x80
+/* R_GPIO_IN1 */
+#define V_GPIO_IN8 0x01
+#define V_GPIO_IN9 0x02
+#define V_GPIO_IN10 0x04
+#define V_GPIO_IN11 0x08
+#define V_GPIO_IN12 0x10
+#define V_GPIO_IN13 0x20
+#define V_GPIO_IN14 0x40
+#define V_GPIO_IN15 0x80
+/* R_GPI_IN0 */
+#define V_GPI_IN0 0x01
+#define V_GPI_IN1 0x02
+#define V_GPI_IN2 0x04
+#define V_GPI_IN3 0x08
+#define V_GPI_IN4 0x10
+#define V_GPI_IN5 0x20
+#define V_GPI_IN6 0x40
+#define V_GPI_IN7 0x80
+/* R_GPI_IN1 */
+#define V_GPI_IN8 0x01
+#define V_GPI_IN9 0x02
+#define V_GPI_IN10 0x04
+#define V_GPI_IN11 0x08
+#define V_GPI_IN12 0x10
+#define V_GPI_IN13 0x20
+#define V_GPI_IN14 0x40
+#define V_GPI_IN15 0x80
+/* R_GPI_IN2 */
+#define V_GPI_IN16 0x01
+#define V_GPI_IN17 0x02
+#define V_GPI_IN18 0x04
+#define V_GPI_IN19 0x08
+#define V_GPI_IN20 0x10
+#define V_GPI_IN21 0x20
+#define V_GPI_IN22 0x40
+#define V_GPI_IN23 0x80
+/* R_GPI_IN3 */
+#define V_GPI_IN24 0x01
+#define V_GPI_IN25 0x02
+#define V_GPI_IN26 0x04
+#define V_GPI_IN27 0x08
+#define V_GPI_IN28 0x10
+#define V_GPI_IN29 0x20
+#define V_GPI_IN30 0x40
+#define V_GPI_IN31 0x80
+
+/* map of all registers, used for debugging */
+
+#ifdef HFC_REGISTER_DEBUG
+struct hfc_register_names {
+ char *name;
+ u_char reg;
+} hfc_register_names[] = {
+ /* write registers */
+ {"R_CIRM", 0x00},
+ {"R_CTRL", 0x01},
+ {"R_BRG_PCM_CFG ", 0x02},
+ {"R_RAM_ADDR0", 0x08},
+ {"R_RAM_ADDR1", 0x09},
+ {"R_RAM_ADDR2", 0x0A},
+ {"R_FIRST_FIFO", 0x0B},
+ {"R_RAM_SZ", 0x0C},
+ {"R_FIFO_MD", 0x0D},
+ {"R_INC_RES_FIFO", 0x0E},
+ {"R_FIFO / R_FSM_IDX", 0x0F},
+ {"R_SLOT", 0x10},
+ {"R_IRQMSK_MISC", 0x11},
+ {"R_SCI_MSK", 0x12},
+ {"R_IRQ_CTRL", 0x13},
+ {"R_PCM_MD0", 0x14},
+ {"R_0x15", 0x15},
+ {"R_ST_SEL", 0x16},
+ {"R_ST_SYNC", 0x17},
+ {"R_CONF_EN", 0x18},
+ {"R_TI_WD", 0x1A},
+ {"R_BERT_WD_MD", 0x1B},
+ {"R_DTMF", 0x1C},
+ {"R_DTMF_N", 0x1D},
+ {"R_E1_XX_STA", 0x20},
+ {"R_LOS0", 0x22},
+ {"R_LOS1", 0x23},
+ {"R_RX0", 0x24},
+ {"R_RX_FR0", 0x25},
+ {"R_RX_FR1", 0x26},
+ {"R_TX0", 0x28},
+ {"R_TX1", 0x29},
+ {"R_TX_FR0", 0x2C},
+ {"R_TX_FR1", 0x2D},
+ {"R_TX_FR2", 0x2E},
+ {"R_JATT_ATT", 0x2F},
+ {"A_ST_xx_STA/R_RX_OFF", 0x30},
+ {"A_ST_CTRL0/R_SYNC_OUT", 0x31},
+ {"A_ST_CTRL1", 0x32},
+ {"A_ST_CTRL2", 0x33},
+ {"A_ST_SQ_WR", 0x34},
+ {"R_TX_OFF", 0x34},
+ {"R_SYNC_CTRL", 0x35},
+ {"A_ST_CLK_DLY", 0x37},
+ {"R_PWM0", 0x38},
+ {"R_PWM1", 0x39},
+ {"A_ST_B1_TX", 0x3C},
+ {"A_ST_B2_TX", 0x3D},
+ {"A_ST_D_TX", 0x3E},
+ {"R_GPIO_OUT0", 0x40},
+ {"R_GPIO_OUT1", 0x41},
+ {"R_GPIO_EN0", 0x42},
+ {"R_GPIO_EN1", 0x43},
+ {"R_GPIO_SEL", 0x44},
+ {"R_BRG_CTRL", 0x45},
+ {"R_PWM_MD", 0x46},
+ {"R_BRG_MD", 0x47},
+ {"R_BRG_TIM0", 0x48},
+ {"R_BRG_TIM1", 0x49},
+ {"R_BRG_TIM2", 0x4A},
+ {"R_BRG_TIM3", 0x4B},
+ {"R_BRG_TIM_SEL01", 0x4C},
+ {"R_BRG_TIM_SEL23", 0x4D},
+ {"R_BRG_TIM_SEL45", 0x4E},
+ {"R_BRG_TIM_SEL67", 0x4F},
+ {"A_FIFO_DATA0-2", 0x80},
+ {"A_FIFO_DATA0-2_NOINC", 0x84},
+ {"R_RAM_DATA", 0xC0},
+ {"A_SL_CFG", 0xD0},
+ {"A_CONF", 0xD1},
+ {"A_CH_MSK", 0xF4},
+ {"A_CON_HDLC", 0xFA},
+ {"A_SUBCH_CFG", 0xFB},
+ {"A_CHANNEL", 0xFC},
+ {"A_FIFO_SEQ", 0xFD},
+ {"A_IRQ_MSK", 0xFF},
+ {NULL, 0},
+
+ /* read registers */
+ {"A_Z1", 0x04},
+ {"A_Z1H", 0x05},
+ {"A_Z2", 0x06},
+ {"A_Z2H", 0x07},
+ {"A_F1", 0x0C},
+ {"A_F2", 0x0D},
+ {"R_IRQ_OVIEW", 0x10},
+ {"R_IRQ_MISC", 0x11},
+ {"R_IRQ_STATECH", 0x12},
+ {"R_CONF_OFLOW", 0x14},
+ {"R_RAM_USE", 0x15},
+ {"R_CHIP_ID", 0x16},
+ {"R_BERT_STA", 0x17},
+ {"R_F0_CNTL", 0x18},
+ {"R_F0_CNTH", 0x19},
+ {"R_BERT_ECL", 0x1A},
+ {"R_BERT_ECH", 0x1B},
+ {"R_STATUS", 0x1C},
+ {"R_CHIP_RV", 0x1F},
+ {"R_STATE", 0x20},
+ {"R_SYNC_STA", 0x24},
+ {"R_RX_SL0_0", 0x25},
+ {"R_RX_SL0_1", 0x26},
+ {"R_RX_SL0_2", 0x27},
+ {"R_JATT_DIR", 0x2b},
+ {"R_SLIP", 0x2c},
+ {"A_ST_RD_STA", 0x30},
+ {"R_FAS_ECL", 0x30},
+ {"R_FAS_ECH", 0x31},
+ {"R_VIO_ECL", 0x32},
+ {"R_VIO_ECH", 0x33},
+ {"R_CRC_ECL / A_ST_SQ_RD", 0x34},
+ {"R_CRC_ECH", 0x35},
+ {"R_E_ECL", 0x36},
+ {"R_E_ECH", 0x37},
+ {"R_SA6_SA13_ECL", 0x38},
+ {"R_SA6_SA13_ECH", 0x39},
+ {"R_SA6_SA23_ECL", 0x3A},
+ {"R_SA6_SA23_ECH", 0x3B},
+ {"A_ST_B1_RX", 0x3C},
+ {"A_ST_B2_RX", 0x3D},
+ {"A_ST_D_RX", 0x3E},
+ {"A_ST_E_RX", 0x3F},
+ {"R_GPIO_IN0", 0x40},
+ {"R_GPIO_IN1", 0x41},
+ {"R_GPI_IN0", 0x44},
+ {"R_GPI_IN1", 0x45},
+ {"R_GPI_IN2", 0x46},
+ {"R_GPI_IN3", 0x47},
+ {"A_FIFO_DATA0-2", 0x80},
+ {"A_FIFO_DATA0-2_NOINC", 0x84},
+ {"R_INT_DATA", 0x88},
+ {"R_RAM_DATA", 0xC0},
+ {"R_IRQ_FIFO_BL0", 0xC8},
+ {"R_IRQ_FIFO_BL1", 0xC9},
+ {"R_IRQ_FIFO_BL2", 0xCA},
+ {"R_IRQ_FIFO_BL3", 0xCB},
+ {"R_IRQ_FIFO_BL4", 0xCC},
+ {"R_IRQ_FIFO_BL5", 0xCD},
+ {"R_IRQ_FIFO_BL6", 0xCE},
+ {"R_IRQ_FIFO_BL7", 0xCF},
+};
+#endif /* HFC_REGISTER_DEBUG */
+
--- /dev/null
+/*
+ * specific defines for CCD's HFC 2BDS0 PCI chips
+ *
+ * Author Werner Cornelius (werner@isdn4linux.de)
+ *
+ * Copyright 1999 by Werner Cornelius (werner@isdn4linux.de)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/*
+ * thresholds for transparent B-channel mode
+ * change mask and threshold simultaneously
+ */
+#define HFCPCI_BTRANS_THRESHOLD 128
+#define HFCPCI_BTRANS_MAX 256
+#define HFCPCI_BTRANS_THRESMASK 0x00
+
+/* defines for PCI config */
+#define PCI_ENA_MEMIO 0x02
+#define PCI_ENA_MASTER 0x04
+
+/* GCI/IOM bus monitor registers */
+#define HCFPCI_C_I 0x08
+#define HFCPCI_TRxR 0x0C
+#define HFCPCI_MON1_D 0x28
+#define HFCPCI_MON2_D 0x2C
+
+/* GCI/IOM bus timeslot registers */
+#define HFCPCI_B1_SSL 0x80
+#define HFCPCI_B2_SSL 0x84
+#define HFCPCI_AUX1_SSL 0x88
+#define HFCPCI_AUX2_SSL 0x8C
+#define HFCPCI_B1_RSL 0x90
+#define HFCPCI_B2_RSL 0x94
+#define HFCPCI_AUX1_RSL 0x98
+#define HFCPCI_AUX2_RSL 0x9C
+
+/* GCI/IOM bus data registers */
+#define HFCPCI_B1_D 0xA0
+#define HFCPCI_B2_D 0xA4
+#define HFCPCI_AUX1_D 0xA8
+#define HFCPCI_AUX2_D 0xAC
+
+/* GCI/IOM bus configuration registers */
+#define HFCPCI_MST_EMOD 0xB4
+#define HFCPCI_MST_MODE 0xB8
+#define HFCPCI_CONNECT 0xBC
+
+
+/* Interrupt and status registers */
+#define HFCPCI_FIFO_EN 0x44
+#define HFCPCI_TRM 0x48
+#define HFCPCI_B_MODE 0x4C
+#define HFCPCI_CHIP_ID 0x58
+#define HFCPCI_CIRM 0x60
+#define HFCPCI_CTMT 0x64
+#define HFCPCI_INT_M1 0x68
+#define HFCPCI_INT_M2 0x6C
+#define HFCPCI_INT_S1 0x78
+#define HFCPCI_INT_S2 0x7C
+#define HFCPCI_STATUS 0x70
+
+/* S/T section registers */
+#define HFCPCI_STATES 0xC0
+#define HFCPCI_SCTRL 0xC4
+#define HFCPCI_SCTRL_E 0xC8
+#define HFCPCI_SCTRL_R 0xCC
+#define HFCPCI_SQ 0xD0
+#define HFCPCI_CLKDEL 0xDC
+#define HFCPCI_B1_REC 0xF0
+#define HFCPCI_B1_SEND 0xF0
+#define HFCPCI_B2_REC 0xF4
+#define HFCPCI_B2_SEND 0xF4
+#define HFCPCI_D_REC 0xF8
+#define HFCPCI_D_SEND 0xF8
+#define HFCPCI_E_REC 0xFC
+
+
+/* bits in status register (READ) */
+#define HFCPCI_PCI_PROC 0x02
+#define HFCPCI_NBUSY 0x04
+#define HFCPCI_TIMER_ELAP 0x10
+#define HFCPCI_STATINT 0x20
+#define HFCPCI_FRAMEINT 0x40
+#define HFCPCI_ANYINT 0x80
+
+/* bits in CTMT (Write) */
+#define HFCPCI_CLTIMER 0x80
+#define HFCPCI_TIM3_125 0x04
+#define HFCPCI_TIM25 0x10
+#define HFCPCI_TIM50 0x14
+#define HFCPCI_TIM400 0x18
+#define HFCPCI_TIM800 0x1C
+#define HFCPCI_AUTO_TIMER 0x20
+#define HFCPCI_TRANSB2 0x02
+#define HFCPCI_TRANSB1 0x01
+
+/* bits in CIRM (Write) */
+#define HFCPCI_AUX_MSK 0x07
+#define HFCPCI_RESET 0x08
+#define HFCPCI_B1_REV 0x40
+#define HFCPCI_B2_REV 0x80
+
+/* bits in INT_M1 and INT_S1 */
+#define HFCPCI_INTS_B1TRANS 0x01
+#define HFCPCI_INTS_B2TRANS 0x02
+#define HFCPCI_INTS_DTRANS 0x04
+#define HFCPCI_INTS_B1REC 0x08
+#define HFCPCI_INTS_B2REC 0x10
+#define HFCPCI_INTS_DREC 0x20
+#define HFCPCI_INTS_L1STATE 0x40
+#define HFCPCI_INTS_TIMER 0x80
+
+/* bits in INT_M2 */
+#define HFCPCI_PROC_TRANS 0x01
+#define HFCPCI_GCI_I_CHG 0x02
+#define HFCPCI_GCI_MON_REC 0x04
+#define HFCPCI_IRQ_ENABLE 0x08
+#define HFCPCI_PMESEL 0x80
+
+/* bits in STATES */
+#define HFCPCI_STATE_MSK 0x0F
+#define HFCPCI_LOAD_STATE 0x10
+#define HFCPCI_ACTIVATE 0x20
+#define HFCPCI_DO_ACTION 0x40
+#define HFCPCI_NT_G2_G3 0x80
+
+/* bits in HFCD_MST_MODE */
+#define HFCPCI_MASTER 0x01
+#define HFCPCI_SLAVE 0x00
+#define HFCPCI_F0IO_POSITIV 0x02
+#define HFCPCI_F0_NEGATIV 0x04
+#define HFCPCI_F0_2C4 0x08
+/* remaining bits are for codecs control */
+
+/* bits in HFCD_SCTRL */
+#define SCTRL_B1_ENA 0x01
+#define SCTRL_B2_ENA 0x02
+#define SCTRL_MODE_TE 0x00
+#define SCTRL_MODE_NT 0x04
+#define SCTRL_LOW_PRIO 0x08
+#define SCTRL_SQ_ENA 0x10
+#define SCTRL_TEST 0x20
+#define SCTRL_NONE_CAP 0x40
+#define SCTRL_PWR_DOWN 0x80
+
+/* bits in SCTRL_E */
+#define HFCPCI_AUTO_AWAKE 0x01
+#define HFCPCI_DBIT_1 0x04
+#define HFCPCI_IGNORE_COL 0x08
+#define HFCPCI_CHG_B1_B2 0x80
+
+/* bits in FIFO_EN register */
+#define HFCPCI_FIFOEN_B1 0x03
+#define HFCPCI_FIFOEN_B2 0x0C
+#define HFCPCI_FIFOEN_DTX 0x10
+#define HFCPCI_FIFOEN_B1TX 0x01
+#define HFCPCI_FIFOEN_B1RX 0x02
+#define HFCPCI_FIFOEN_B2TX 0x04
+#define HFCPCI_FIFOEN_B2RX 0x08
+
+
+/* definitions of fifo memory area */
+#define MAX_D_FRAMES 15
+#define MAX_B_FRAMES 31
+#define B_SUB_VAL 0x200
+#define B_FIFO_SIZE (0x2000 - B_SUB_VAL)
+#define D_FIFO_SIZE 512
+#define D_FREG_MASK 0xF
+
+struct zt {
+ unsigned short z1; /* Z1 pointer 16 Bit */
+ unsigned short z2; /* Z2 pointer 16 Bit */
+};
+
+struct dfifo {
+ u_char data[D_FIFO_SIZE]; /* FIFO data space */
+ u_char fill1[0x20A0-D_FIFO_SIZE]; /* reserved, do not use */
+ u_char f1, f2; /* f pointers */
+ u_char fill2[0x20C0-0x20A2]; /* reserved, do not use */
+ /* mask index with D_FREG_MASK for access */
+ struct zt za[MAX_D_FRAMES+1];
+ u_char fill3[0x4000-0x2100]; /* align 16K */
+};
+
+struct bzfifo {
+ struct zt za[MAX_B_FRAMES+1]; /* only range 0x0..0x1F allowed */
+ u_char f1, f2; /* f pointers */
+ u_char fill[0x2100-0x2082]; /* alignment */
+};
+
+
+union fifo_area {
+ struct {
+ struct dfifo d_tx; /* D-send channel */
+ struct dfifo d_rx; /* D-receive channel */
+ } d_chan;
+ struct {
+ u_char fill1[0x200];
+ u_char txdat_b1[B_FIFO_SIZE];
+ struct bzfifo txbz_b1;
+ struct bzfifo txbz_b2;
+ u_char txdat_b2[B_FIFO_SIZE];
+ u_char fill2[D_FIFO_SIZE];
+ u_char rxdat_b1[B_FIFO_SIZE];
+ struct bzfifo rxbz_b1;
+ struct bzfifo rxbz_b2;
+ u_char rxdat_b2[B_FIFO_SIZE];
+ } b_chans;
+ u_char fill[32768];
+};
+
+#define Write_hfc(a, b, c) (writeb(c, (a->hw.pci_io)+b))
+#define Read_hfc(a, b) (readb((a->hw.pci_io)+b))
--- /dev/null
+/*
+ * hfcmulti.c low level driver for hfc-4s/hfc-8s/hfc-e1 based cards
+ *
+ * Author Andreas Eversberg (jolly@eversberg.eu)
+ * ported to mqueue mechanism:
+ * Peter Sprenger (sprengermoving-bytes.de)
+ *
+ * inspired by existing hfc-pci driver:
+ * Copyright 1999 by Werner Cornelius (werner@isdn-development.de)
+ * Copyright 2008 by Karsten Keil (kkeil@suse.de)
+ * Copyright 2008 by Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Thanks to Cologne Chip AG for this great controller!
+ */
+
+/*
+ * module parameters:
+ * type:
+ * By default (0), the card is automatically detected.
+ * Or use the following combinations:
+ * Bit 0-7 = 0x00001 = HFC-E1 (1 port)
+ * or Bit 0-7 = 0x00004 = HFC-4S (4 ports)
+ * or Bit 0-7 = 0x00008 = HFC-8S (8 ports)
+ * Bit 8 = 0x00100 = uLaw (instead of aLaw)
+ * Bit 9 = 0x00200 = Disable DTMF detect on all B-channels via hardware
+ * Bit 10 = spare
+ * Bit 11 = 0x00800 = Force PCM bus into slave mode. (otherwhise auto)
+ * or Bit 12 = 0x01000 = Force PCM bus into master mode. (otherwhise auto)
+ * Bit 13 = spare
+ * Bit 14 = 0x04000 = Use external ram (128K)
+ * Bit 15 = 0x08000 = Use external ram (512K)
+ * Bit 16 = 0x10000 = Use 64 timeslots instead of 32
+ * or Bit 17 = 0x20000 = Use 128 timeslots instead of anything else
+ * Bit 18 = spare
+ * Bit 19 = 0x80000 = Send the Watchdog a Signal (Dual E1 with Watchdog)
+ * (all other bits are reserved and shall be 0)
+ * example: 0x20204 one HFC-4S with dtmf detection and 128 timeslots on PCM
+ * bus (PCM master)
+ *
+ * port: (optional or required for all ports on all installed cards)
+ * HFC-4S/HFC-8S only bits:
+ * Bit 0 = 0x001 = Use master clock for this S/T interface
+ * (ony once per chip).
+ * Bit 1 = 0x002 = transmitter line setup (non capacitive mode)
+ * Don't use this unless you know what you are doing!
+ * Bit 2 = 0x004 = Disable E-channel. (No E-channel processing)
+ * example: 0x0001,0x0000,0x0000,0x0000 one HFC-4S with master clock
+ * received from port 1
+ *
+ * HFC-E1 only bits:
+ * Bit 0 = 0x0001 = interface: 0=copper, 1=optical
+ * Bit 1 = 0x0002 = reserved (later for 32 B-channels transparent mode)
+ * Bit 2 = 0x0004 = Report LOS
+ * Bit 3 = 0x0008 = Report AIS
+ * Bit 4 = 0x0010 = Report SLIP
+ * Bit 5 = 0x0020 = Report RDI
+ * Bit 8 = 0x0100 = Turn off CRC-4 Multiframe Mode, use double frame
+ * mode instead.
+ * Bit 9 = 0x0200 = Force get clock from interface, even in NT mode.
+ * or Bit 10 = 0x0400 = Force put clock to interface, even in TE mode.
+ * Bit 11 = 0x0800 = Use direct RX clock for PCM sync rather than PLL.
+ * (E1 only)
+ * Bit 12-13 = 0xX000 = elastic jitter buffer (1-3), Set both bits to 0
+ * for default.
+ * (all other bits are reserved and shall be 0)
+ *
+ * debug:
+ * NOTE: only one debug value must be given for all cards
+ * enable debugging (see hfc_multi.h for debug options)
+ *
+ * poll:
+ * NOTE: only one poll value must be given for all cards
+ * Give the number of samples for each fifo process.
+ * By default 128 is used. Decrease to reduce delay, increase to
+ * reduce cpu load. If unsure, don't mess with it!
+ * Valid is 8, 16, 32, 64, 128, 256.
+ *
+ * pcm:
+ * NOTE: only one pcm value must be given for every card.
+ * The PCM bus id tells the mISDNdsp module about the connected PCM bus.
+ * By default (0), the PCM bus id is 100 for the card that is PCM master.
+ * If multiple cards are PCM master (because they are not interconnected),
+ * each card with PCM master will have increasing PCM id.
+ * All PCM busses with the same ID are expected to be connected and have
+ * common time slots slots.
+ * Only one chip of the PCM bus must be master, the others slave.
+ * -1 means no support of PCM bus not even.
+ * Omit this value, if all cards are interconnected or none is connected.
+ * If unsure, don't give this parameter.
+ *
+ * dslot:
+ * NOTE: only one poll value must be given for every card.
+ * Also this value must be given for non-E1 cards. If omitted, the E1
+ * card has D-channel on time slot 16, which is default.
+ * If 1..15 or 17..31, an alternate time slot is used for D-channel.
+ * In this case, the application must be able to handle this.
+ * If -1 is given, the D-channel is disabled and all 31 slots can be used
+ * for B-channel. (only for specific applications)
+ * If you don't know how to use it, you don't need it!
+ *
+ * iomode:
+ * NOTE: only one mode value must be given for every card.
+ * -> See hfc_multi.h for HFC_IO_MODE_* values
+ * By default, the IO mode is pci memory IO (MEMIO).
+ * Some cards requre specific IO mode, so it cannot be changed.
+ * It may be usefull to set IO mode to register io (REGIO) to solve
+ * PCI bridge problems.
+ * If unsure, don't give this parameter.
+ *
+ * clockdelay_nt:
+ * NOTE: only one clockdelay_nt value must be given once for all cards.
+ * Give the value of the clock control register (A_ST_CLK_DLY)
+ * of the S/T interfaces in NT mode.
+ * This register is needed for the TBR3 certification, so don't change it.
+ *
+ * clockdelay_te:
+ * NOTE: only one clockdelay_te value must be given once
+ * Give the value of the clock control register (A_ST_CLK_DLY)
+ * of the S/T interfaces in TE mode.
+ * This register is needed for the TBR3 certification, so don't change it.
+ */
+
+/*
+ * debug register access (never use this, it will flood your system log)
+ * #define HFC_REGISTER_DEBUG
+ */
+
+static const char *hfcmulti_revision = "2.00";
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/mISDNhw.h>
+#include <linux/mISDNdsp.h>
+
+/*
+#define IRQCOUNT_DEBUG
+#define IRQ_DEBUG
+*/
+
+#include "hfc_multi.h"
+#ifdef ECHOPREP
+#include "gaintab.h"
+#endif
+
+#define MAX_CARDS 8
+#define MAX_PORTS (8 * MAX_CARDS)
+
+static LIST_HEAD(HFClist);
+static spinlock_t HFClock; /* global hfc list lock */
+
+static void ph_state_change(struct dchannel *);
+static void (*hfc_interrupt)(void);
+static void (*register_interrupt)(void);
+static int (*unregister_interrupt)(void);
+static int interrupt_registered;
+
+static struct hfc_multi *syncmaster;
+int plxsd_master; /* if we have a master card (yet) */
+static spinlock_t plx_lock; /* may not acquire other lock inside */
+EXPORT_SYMBOL(plx_lock);
+
+#define TYP_E1 1
+#define TYP_4S 4
+#define TYP_8S 8
+
+static int poll_timer = 6; /* default = 128 samples = 16ms */
+/* number of POLL_TIMER interrupts for G2 timeout (ca 1s) */
+static int nt_t1_count[] = { 3840, 1920, 960, 480, 240, 120, 60, 30 };
+#define CLKDEL_TE 0x0f /* CLKDEL in TE mode */
+#define CLKDEL_NT 0x6c /* CLKDEL in NT mode
+ (0x60 MUST be included!) */
+static u_char silence = 0xff; /* silence by LAW */
+
+#define DIP_4S 0x1 /* DIP Switches for Beronet 1S/2S/4S cards */
+#define DIP_8S 0x2 /* DIP Switches for Beronet 8S+ cards */
+#define DIP_E1 0x3 /* DIP Switches for Beronet E1 cards */
+
+/*
+ * module stuff
+ */
+
+static uint type[MAX_CARDS];
+static uint pcm[MAX_CARDS];
+static uint dslot[MAX_CARDS];
+static uint iomode[MAX_CARDS];
+static uint port[MAX_PORTS];
+static uint debug;
+static uint poll;
+static uint timer;
+static uint clockdelay_te = CLKDEL_TE;
+static uint clockdelay_nt = CLKDEL_NT;
+
+static int HFC_cnt, Port_cnt, PCM_cnt = 99;
+
+MODULE_AUTHOR("Andreas Eversberg");
+MODULE_LICENSE("GPL");
+module_param(debug, uint, S_IRUGO | S_IWUSR);
+module_param(poll, uint, S_IRUGO | S_IWUSR);
+module_param(timer, uint, S_IRUGO | S_IWUSR);
+module_param(clockdelay_te, uint, S_IRUGO | S_IWUSR);
+module_param(clockdelay_nt, uint, S_IRUGO | S_IWUSR);
+module_param_array(type, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(pcm, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(dslot, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(iomode, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(port, uint, NULL, S_IRUGO | S_IWUSR);
+
+#ifdef HFC_REGISTER_DEBUG
+#define HFC_outb(hc, reg, val) \
+ (hc->HFC_outb(hc, reg, val, __func__, __LINE__))
+#define HFC_outb_nodebug(hc, reg, val) \
+ (hc->HFC_outb_nodebug(hc, reg, val, __func__, __LINE__))
+#define HFC_inb(hc, reg) \
+ (hc->HFC_inb(hc, reg, __func__, __LINE__))
+#define HFC_inb_nodebug(hc, reg) \
+ (hc->HFC_inb_nodebug(hc, reg, __func__, __LINE__))
+#define HFC_inw(hc, reg) \
+ (hc->HFC_inw(hc, reg, __func__, __LINE__))
+#define HFC_inw_nodebug(hc, reg) \
+ (hc->HFC_inw_nodebug(hc, reg, __func__, __LINE__))
+#define HFC_wait(hc) \
+ (hc->HFC_wait(hc, __func__, __LINE__))
+#define HFC_wait_nodebug(hc) \
+ (hc->HFC_wait_nodebug(hc, __func__, __LINE__))
+#else
+#define HFC_outb(hc, reg, val) (hc->HFC_outb(hc, reg, val))
+#define HFC_outb_nodebug(hc, reg, val) (hc->HFC_outb_nodebug(hc, reg, val))
+#define HFC_inb(hc, reg) (hc->HFC_inb(hc, reg))
+#define HFC_inb_nodebug(hc, reg) (hc->HFC_inb_nodebug(hc, reg))
+#define HFC_inw(hc, reg) (hc->HFC_inw(hc, reg))
+#define HFC_inw_nodebug(hc, reg) (hc->HFC_inw_nodebug(hc, reg))
+#define HFC_wait(hc) (hc->HFC_wait(hc))
+#define HFC_wait_nodebug(hc) (hc->HFC_wait_nodebug(hc))
+#endif
+
+/* HFC_IO_MODE_PCIMEM */
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_outb_pcimem(struct hfc_multi *hc, u_char reg, u_char val,
+ const char *function, int line)
+#else
+HFC_outb_pcimem(struct hfc_multi *hc, u_char reg, u_char val)
+#endif
+{
+ writeb(val, (hc->pci_membase)+reg);
+}
+static u_char
+#ifdef HFC_REGISTER_DEBUG
+HFC_inb_pcimem(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inb_pcimem(struct hfc_multi *hc, u_char reg)
+#endif
+{
+ return readb((hc->pci_membase)+reg);
+}
+static u_short
+#ifdef HFC_REGISTER_DEBUG
+HFC_inw_pcimem(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inw_pcimem(struct hfc_multi *hc, u_char reg)
+#endif
+{
+ return readw((hc->pci_membase)+reg);
+}
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_wait_pcimem(struct hfc_multi *hc, const char *function, int line)
+#else
+HFC_wait_pcimem(struct hfc_multi *hc)
+#endif
+{
+ while (readb((hc->pci_membase)+R_STATUS) & V_BUSY);
+}
+
+/* HFC_IO_MODE_REGIO */
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_outb_regio(struct hfc_multi *hc, u_char reg, u_char val,
+ const char *function, int line)
+#else
+HFC_outb_regio(struct hfc_multi *hc, u_char reg, u_char val)
+#endif
+{
+ outb(reg, (hc->pci_iobase)+4);
+ outb(val, hc->pci_iobase);
+}
+static u_char
+#ifdef HFC_REGISTER_DEBUG
+HFC_inb_regio(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inb_regio(struct hfc_multi *hc, u_char reg)
+#endif
+{
+ outb(reg, (hc->pci_iobase)+4);
+ return inb(hc->pci_iobase);
+}
+static u_short
+#ifdef HFC_REGISTER_DEBUG
+HFC_inw_regio(struct hfc_multi *hc, u_char reg, const char *function, int line)
+#else
+HFC_inw_regio(struct hfc_multi *hc, u_char reg)
+#endif
+{
+ outb(reg, (hc->pci_iobase)+4);
+ return inw(hc->pci_iobase);
+}
+static void
+#ifdef HFC_REGISTER_DEBUG
+HFC_wait_regio(struct hfc_multi *hc, const char *function, int line)
+#else
+HFC_wait_regio(struct hfc_multi *hc)
+#endif
+{
+ outb(R_STATUS, (hc->pci_iobase)+4);
+ while (inb(hc->pci_iobase) & V_BUSY);
+}
+
+#ifdef HFC_REGISTER_DEBUG
+static void
+HFC_outb_debug(struct hfc_multi *hc, u_char reg, u_char val,
+ const char *function, int line)
+{
+ char regname[256] = "", bits[9] = "xxxxxxxx";
+ int i;
+
+ i = -1;
+ while (hfc_register_names[++i].name) {
+ if (hfc_register_names[i].reg == reg)
+ strcat(regname, hfc_register_names[i].name);
+ }
+ if (regname[0] == '\0')
+ strcpy(regname, "register");
+
+ bits[7] = '0'+(!!(val&1));
+ bits[6] = '0'+(!!(val&2));
+ bits[5] = '0'+(!!(val&4));
+ bits[4] = '0'+(!!(val&8));
+ bits[3] = '0'+(!!(val&16));
+ bits[2] = '0'+(!!(val&32));
+ bits[1] = '0'+(!!(val&64));
+ bits[0] = '0'+(!!(val&128));
+ printk(KERN_DEBUG
+ "HFC_outb(chip %d, %02x=%s, 0x%02x=%s); in %s() line %d\n",
+ hc->id, reg, regname, val, bits, function, line);
+ HFC_outb_nodebug(hc, reg, val);
+}
+static u_char
+HFC_inb_debug(struct hfc_multi *hc, u_char reg, const char *function, int line)
+{
+ char regname[256] = "", bits[9] = "xxxxxxxx";
+ u_char val = HFC_inb_nodebug(hc, reg);
+ int i;
+
+ i = 0;
+ while (hfc_register_names[i++].name)
+ ;
+ while (hfc_register_names[++i].name) {
+ if (hfc_register_names[i].reg == reg)
+ strcat(regname, hfc_register_names[i].name);
+ }
+ if (regname[0] == '\0')
+ strcpy(regname, "register");
+
+ bits[7] = '0'+(!!(val&1));
+ bits[6] = '0'+(!!(val&2));
+ bits[5] = '0'+(!!(val&4));
+ bits[4] = '0'+(!!(val&8));
+ bits[3] = '0'+(!!(val&16));
+ bits[2] = '0'+(!!(val&32));
+ bits[1] = '0'+(!!(val&64));
+ bits[0] = '0'+(!!(val&128));
+ printk(KERN_DEBUG
+ "HFC_inb(chip %d, %02x=%s) = 0x%02x=%s; in %s() line %d\n",
+ hc->id, reg, regname, val, bits, function, line);
+ return val;
+}
+static u_short
+HFC_inw_debug(struct hfc_multi *hc, u_char reg, const char *function, int line)
+{
+ char regname[256] = "";
+ u_short val = HFC_inw_nodebug(hc, reg);
+ int i;
+
+ i = 0;
+ while (hfc_register_names[i++].name)
+ ;
+ while (hfc_register_names[++i].name) {
+ if (hfc_register_names[i].reg == reg)
+ strcat(regname, hfc_register_names[i].name);
+ }
+ if (regname[0] == '\0')
+ strcpy(regname, "register");
+
+ printk(KERN_DEBUG
+ "HFC_inw(chip %d, %02x=%s) = 0x%04x; in %s() line %d\n",
+ hc->id, reg, regname, val, function, line);
+ return val;
+}
+static void
+HFC_wait_debug(struct hfc_multi *hc, const char *function, int line)
+{
+ printk(KERN_DEBUG "HFC_wait(chip %d); in %s() line %d\n",
+ hc->id, function, line);
+ HFC_wait_nodebug(hc);
+}
+#endif
+
+/* write fifo data (REGIO) */
+void
+write_fifo_regio(struct hfc_multi *hc, u_char *data, int len)
+{
+ outb(A_FIFO_DATA0, (hc->pci_iobase)+4);
+ while (len>>2) {
+ outl(*(u32 *)data, hc->pci_iobase);
+ data += 4;
+ len -= 4;
+ }
+ while (len>>1) {
+ outw(*(u16 *)data, hc->pci_iobase);
+ data += 2;
+ len -= 2;
+ }
+ while (len) {
+ outb(*data, hc->pci_iobase);
+ data++;
+ len--;
+ }
+}
+/* write fifo data (PCIMEM) */
+void
+write_fifo_pcimem(struct hfc_multi *hc, u_char *data, int len)
+{
+ while (len>>2) {
+ writel(*(u32 *)data, (hc->pci_membase)+A_FIFO_DATA0);
+ data += 4;
+ len -= 4;
+ }
+ while (len>>1) {
+ writew(*(u16 *)data, (hc->pci_membase)+A_FIFO_DATA0);
+ data += 2;
+ len -= 2;
+ }
+ while (len) {
+ writeb(*data, (hc->pci_membase)+A_FIFO_DATA0);
+ data++;
+ len--;
+ }
+}
+/* read fifo data (REGIO) */
+void
+read_fifo_regio(struct hfc_multi *hc, u_char *data, int len)
+{
+ outb(A_FIFO_DATA0, (hc->pci_iobase)+4);
+ while (len>>2) {
+ *(u32 *)data = inl(hc->pci_iobase);
+ data += 4;
+ len -= 4;
+ }
+ while (len>>1) {
+ *(u16 *)data = inw(hc->pci_iobase);
+ data += 2;
+ len -= 2;
+ }
+ while (len) {
+ *data = inb(hc->pci_iobase);
+ data++;
+ len--;
+ }
+}
+
+/* read fifo data (PCIMEM) */
+void
+read_fifo_pcimem(struct hfc_multi *hc, u_char *data, int len)
+{
+ while (len>>2) {
+ *(u32 *)data =
+ readl((hc->pci_membase)+A_FIFO_DATA0);
+ data += 4;
+ len -= 4;
+ }
+ while (len>>1) {
+ *(u16 *)data =
+ readw((hc->pci_membase)+A_FIFO_DATA0);
+ data += 2;
+ len -= 2;
+ }
+ while (len) {
+ *data = readb((hc->pci_membase)+A_FIFO_DATA0);
+ data++;
+ len--;
+ }
+}
+
+
+static void
+enable_hwirq(struct hfc_multi *hc)
+{
+ hc->hw.r_irq_ctrl |= V_GLOB_IRQ_EN;
+ HFC_outb(hc, R_IRQ_CTRL, hc->hw.r_irq_ctrl);
+}
+
+static void
+disable_hwirq(struct hfc_multi *hc)
+{
+ hc->hw.r_irq_ctrl &= ~((u_char)V_GLOB_IRQ_EN);
+ HFC_outb(hc, R_IRQ_CTRL, hc->hw.r_irq_ctrl);
+}
+
+#define NUM_EC 2
+#define MAX_TDM_CHAN 32
+
+
+inline void
+enablepcibridge(struct hfc_multi *c)
+{
+ HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x3); /* was _io before */
+}
+
+inline void
+disablepcibridge(struct hfc_multi *c)
+{
+ HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x2); /* was _io before */
+}
+
+inline unsigned char
+readpcibridge(struct hfc_multi *hc, unsigned char address)
+{
+ unsigned short cipv;
+ unsigned char data;
+
+ if (!hc->pci_iobase)
+ return 0;
+
+ /* slow down a PCI read access by 1 PCI clock cycle */
+ HFC_outb(hc, R_CTRL, 0x4); /*was _io before*/
+
+ if (address == 0)
+ cipv = 0x4000;
+ else
+ cipv = 0x5800;
+
+ /* select local bridge port address by writing to CIP port */
+ /* data = HFC_inb(c, cipv); * was _io before */
+ outw(cipv, hc->pci_iobase + 4);
+ data = inb(hc->pci_iobase);
+
+ /* restore R_CTRL for normal PCI read cycle speed */
+ HFC_outb(hc, R_CTRL, 0x0); /* was _io before */
+
+ return data;
+}
+
+inline void
+writepcibridge(struct hfc_multi *hc, unsigned char address, unsigned char data)
+{
+ unsigned short cipv;
+ unsigned int datav;
+
+ if (!hc->pci_iobase)
+ return;
+
+ if (address == 0)
+ cipv = 0x4000;
+ else
+ cipv = 0x5800;
+
+ /* select local bridge port address by writing to CIP port */
+ outw(cipv, hc->pci_iobase + 4);
+ /* define a 32 bit dword with 4 identical bytes for write sequence */
+ datav = data | ((__u32) data << 8) | ((__u32) data << 16) |
+ ((__u32) data << 24);
+
+ /*
+ * write this 32 bit dword to the bridge data port
+ * this will initiate a write sequence of up to 4 writes to the same
+ * address on the local bus interface the number of write accesses
+ * is undefined but >=1 and depends on the next PCI transaction
+ * during write sequence on the local bus
+ */
+ outl(datav, hc->pci_iobase);
+}
+
+inline void
+cpld_set_reg(struct hfc_multi *hc, unsigned char reg)
+{
+ /* Do data pin read low byte */
+ HFC_outb(hc, R_GPIO_OUT1, reg);
+}
+
+inline void
+cpld_write_reg(struct hfc_multi *hc, unsigned char reg, unsigned char val)
+{
+ cpld_set_reg(hc, reg);
+
+ enablepcibridge(hc);
+ writepcibridge(hc, 1, val);
+ disablepcibridge(hc);
+
+ return;
+}
+
+inline unsigned char
+cpld_read_reg(struct hfc_multi *hc, unsigned char reg)
+{
+ unsigned char bytein;
+
+ cpld_set_reg(hc, reg);
+
+ /* Do data pin read low byte */
+ HFC_outb(hc, R_GPIO_OUT1, reg);
+
+ enablepcibridge(hc);
+ bytein = readpcibridge(hc, 1);
+ disablepcibridge(hc);
+
+ return bytein;
+}
+
+inline void
+vpm_write_address(struct hfc_multi *hc, unsigned short addr)
+{
+ cpld_write_reg(hc, 0, 0xff & addr);
+ cpld_write_reg(hc, 1, 0x01 & (addr >> 8));
+}
+
+inline unsigned short
+vpm_read_address(struct hfc_multi *c)
+{
+ unsigned short addr;
+ unsigned short highbit;
+
+ addr = cpld_read_reg(c, 0);
+ highbit = cpld_read_reg(c, 1);
+
+ addr = addr | (highbit << 8);
+
+ return addr & 0x1ff;
+}
+
+inline unsigned char
+vpm_in(struct hfc_multi *c, int which, unsigned short addr)
+{
+ unsigned char res;
+
+ vpm_write_address(c, addr);
+
+ if (!which)
+ cpld_set_reg(c, 2);
+ else
+ cpld_set_reg(c, 3);
+
+ enablepcibridge(c);
+ res = readpcibridge(c, 1);
+ disablepcibridge(c);
+
+ cpld_set_reg(c, 0);
+
+ return res;
+}
+
+inline void
+vpm_out(struct hfc_multi *c, int which, unsigned short addr,
+ unsigned char data)
+{
+ vpm_write_address(c, addr);
+
+ enablepcibridge(c);
+
+ if (!which)
+ cpld_set_reg(c, 2);
+ else
+ cpld_set_reg(c, 3);
+
+ writepcibridge(c, 1, data);
+
+ cpld_set_reg(c, 0);
+
+ disablepcibridge(c);
+
+ {
+ unsigned char regin;
+ regin = vpm_in(c, which, addr);
+ if (regin != data)
+ printk(KERN_DEBUG "Wrote 0x%x to register 0x%x but got back "
+ "0x%x\n", data, addr, regin);
+ }
+
+}
+
+
+void
+vpm_init(struct hfc_multi *wc)
+{
+ unsigned char reg;
+ unsigned int mask;
+ unsigned int i, x, y;
+ unsigned int ver;
+
+ for (x = 0; x < NUM_EC; x++) {
+ /* Setup GPIO's */
+ if (!x) {
+ ver = vpm_in(wc, x, 0x1a0);
+ printk(KERN_DEBUG "VPM: Chip %d: ver %02x\n", x, ver);
+ }
+
+ for (y = 0; y < 4; y++) {
+ vpm_out(wc, x, 0x1a8 + y, 0x00); /* GPIO out */
+ vpm_out(wc, x, 0x1ac + y, 0x00); /* GPIO dir */
+ vpm_out(wc, x, 0x1b0 + y, 0x00); /* GPIO sel */
+ }
+
+ /* Setup TDM path - sets fsync and tdm_clk as inputs */
+ reg = vpm_in(wc, x, 0x1a3); /* misc_con */
+ vpm_out(wc, x, 0x1a3, reg & ~2);
+
+ /* Setup Echo length (256 taps) */
+ vpm_out(wc, x, 0x022, 1);
+ vpm_out(wc, x, 0x023, 0xff);
+
+ /* Setup timeslots */
+ vpm_out(wc, x, 0x02f, 0x00);
+ mask = 0x02020202 << (x * 4);
+
+ /* Setup the tdm channel masks for all chips */
+ for (i = 0; i < 4; i++)
+ vpm_out(wc, x, 0x33 - i, (mask >> (i << 3)) & 0xff);
+
+ /* Setup convergence rate */
+ printk(KERN_DEBUG "VPM: A-law mode\n");
+ reg = 0x00 | 0x10 | 0x01;
+ vpm_out(wc, x, 0x20, reg);
+ printk(KERN_DEBUG "VPM reg 0x20 is %x\n", reg);
+ /*vpm_out(wc, x, 0x20, (0x00 | 0x08 | 0x20 | 0x10)); */
+
+ vpm_out(wc, x, 0x24, 0x02);
+ reg = vpm_in(wc, x, 0x24);
+ printk(KERN_DEBUG "NLP Thresh is set to %d (0x%x)\n", reg, reg);
+
+ /* Initialize echo cans */
+ for (i = 0; i < MAX_TDM_CHAN; i++) {
+ if (mask & (0x00000001 << i))
+ vpm_out(wc, x, i, 0x00);
+ }
+
+ /*
+ * ARM arch at least disallows a udelay of
+ * more than 2ms... it gives a fake "__bad_udelay"
+ * reference at link-time.
+ * long delays in kernel code are pretty sucky anyway
+ * for now work around it using 5 x 2ms instead of 1 x 10ms
+ */
+
+ udelay(2000);
+ udelay(2000);
+ udelay(2000);
+ udelay(2000);
+ udelay(2000);
+
+ /* Put in bypass mode */
+ for (i = 0; i < MAX_TDM_CHAN; i++) {
+ if (mask & (0x00000001 << i))
+ vpm_out(wc, x, i, 0x01);
+ }
+
+ /* Enable bypass */
+ for (i = 0; i < MAX_TDM_CHAN; i++) {
+ if (mask & (0x00000001 << i))
+ vpm_out(wc, x, 0x78 + i, 0x01);
+ }
+
+ }
+}
+
+void
+vpm_check(struct hfc_multi *hctmp)
+{
+ unsigned char gpi2;
+
+ gpi2 = HFC_inb(hctmp, R_GPI_IN2);
+
+ if ((gpi2 & 0x3) != 0x3)
+ printk(KERN_DEBUG "Got interrupt 0x%x from VPM!\n", gpi2);
+}
+
+
+/*
+ * Interface to enable/disable the HW Echocan
+ *
+ * these functions are called within a spin_lock_irqsave on
+ * the channel instance lock, so we are not disturbed by irqs
+ *
+ * we can later easily change the interface to make other
+ * things configurable, for now we configure the taps
+ *
+ */
+
+void
+vpm_echocan_on(struct hfc_multi *hc, int ch, int taps)
+{
+ unsigned int timeslot;
+ unsigned int unit;
+ struct bchannel *bch = hc->chan[ch].bch;
+#ifdef TXADJ
+ int txadj = -4;
+ struct sk_buff *skb;
+#endif
+ if (hc->chan[ch].protocol != ISDN_P_B_RAW)
+ return;
+
+ if (!bch)
+ return;
+
+#ifdef TXADJ
+ skb = _alloc_mISDN_skb(PH_CONTROL_IND, HFC_VOL_CHANGE_TX,
+ sizeof(int), &txadj, GFP_ATOMIC);
+ if (skb)
+ recv_Bchannel_skb(bch, skb);
+#endif
+
+ timeslot = ((ch/4)*8) + ((ch%4)*4) + 1;
+ unit = ch % 4;
+
+ printk(KERN_NOTICE "vpm_echocan_on called taps [%d] on timeslot %d\n",
+ taps, timeslot);
+
+ vpm_out(hc, unit, timeslot, 0x7e);
+}
+
+void
+vpm_echocan_off(struct hfc_multi *hc, int ch)
+{
+ unsigned int timeslot;
+ unsigned int unit;
+ struct bchannel *bch = hc->chan[ch].bch;
+#ifdef TXADJ
+ int txadj = 0;
+ struct sk_buff *skb;
+#endif
+
+ if (hc->chan[ch].protocol != ISDN_P_B_RAW)
+ return;
+
+ if (!bch)
+ return;
+
+#ifdef TXADJ
+ skb = _alloc_mISDN_skb(PH_CONTROL_IND, HFC_VOL_CHANGE_TX,
+ sizeof(int), &txadj, GFP_ATOMIC);
+ if (skb)
+ recv_Bchannel_skb(bch, skb);
+#endif
+
+ timeslot = ((ch/4)*8) + ((ch%4)*4) + 1;
+ unit = ch % 4;
+
+ printk(KERN_NOTICE "vpm_echocan_off called on timeslot %d\n",
+ timeslot);
+ /* FILLME */
+ vpm_out(hc, unit, timeslot, 0x01);
+}
+
+
+/*
+ * Speech Design resync feature
+ * NOTE: This is called sometimes outside interrupt handler.
+ * We must lock irqsave, so no other interrupt (other card) will occurr!
+ * Also multiple interrupts may nest, so must lock each access (lists, card)!
+ */
+static inline void
+hfcmulti_resync(struct hfc_multi *locked, struct hfc_multi *newmaster, int rm)
+{
+ struct hfc_multi *hc, *next, *pcmmaster = 0;
+ u_int *plx_acc_32, pv;
+ u_long flags;
+
+ spin_lock_irqsave(&HFClock, flags);
+ spin_lock(&plx_lock); /* must be locked inside other locks */
+
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "%s: RESYNC(syncmaster=0x%p)\n",
+ __func__, syncmaster);
+
+ /* select new master */
+ if (newmaster) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "using provided controller\n");
+ } else {
+ list_for_each_entry_safe(hc, next, &HFClist, list) {
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ if (hc->syncronized) {
+ newmaster = hc;
+ break;
+ }
+ }
+ }
+ }
+
+ /* Disable sync of all cards */
+ list_for_each_entry_safe(hc, next, &HFClist, list) {
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv &= ~PLX_SYNC_O_EN;
+ writel(pv, plx_acc_32);
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) {
+ pcmmaster = hc;
+ if (hc->type == 1) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG
+ "Schedule SYNC_I\n");
+ hc->e1_resync |= 1; /* get SYNC_I */
+ }
+ }
+ }
+ }
+
+ if (newmaster) {
+ hc = newmaster;
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "id=%d (0x%p) = syncronized with "
+ "interface.\n", hc->id, hc);
+ /* Enable new sync master */
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv |= PLX_SYNC_O_EN;
+ writel(pv, plx_acc_32);
+ /* switch to jatt PLL, if not disabled by RX_SYNC */
+ if (hc->type == 1 && !test_bit(HFC_CHIP_RX_SYNC, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "Schedule jatt PLL\n");
+ hc->e1_resync |= 2; /* switch to jatt */
+ }
+ } else {
+ if (pcmmaster) {
+ hc = pcmmaster;
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG
+ "id=%d (0x%p) = PCM master syncronized "
+ "with QUARTZ\n", hc->id, hc);
+ if (hc->type == 1) {
+ /* Use the crystal clock for the PCM
+ master card */
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG
+ "Schedule QUARTZ for HFC-E1\n");
+ hc->e1_resync |= 4; /* switch quartz */
+ } else {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG
+ "QUARTZ is automatically "
+ "enabled by HFC-%dS\n", hc->type);
+ }
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv |= PLX_SYNC_O_EN;
+ writel(pv, plx_acc_32);
+ } else
+ if (!rm)
+ printk(KERN_ERR "%s no pcm master, this MUST "
+ "not happen!\n", __func__);
+ }
+ syncmaster = newmaster;
+
+ spin_unlock(&plx_lock);
+ spin_unlock_irqrestore(&HFClock, flags);
+}
+
+/* This must be called AND hc must be locked irqsave!!! */
+inline void
+plxsd_checksync(struct hfc_multi *hc, int rm)
+{
+ if (hc->syncronized) {
+ if (syncmaster == NULL) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_WARNING "%s: GOT sync on card %d"
+ " (id=%d)\n", __func__, hc->id + 1,
+ hc->id);
+ hfcmulti_resync(hc, hc, rm);
+ }
+ } else {
+ if (syncmaster == hc) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_WARNING "%s: LOST sync on card %d"
+ " (id=%d)\n", __func__, hc->id + 1,
+ hc->id);
+ hfcmulti_resync(hc, NULL, rm);
+ }
+ }
+}
+
+
+/*
+ * free hardware resources used by driver
+ */
+static void
+release_io_hfcmulti(struct hfc_multi *hc)
+{
+ u_int *plx_acc_32, pv;
+ u_long plx_flags;
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: entered\n", __func__);
+
+ /* soft reset also masks all interrupts */
+ hc->hw.r_cirm |= V_SRES;
+ HFC_outb(hc, R_CIRM, hc->hw.r_cirm);
+ udelay(1000);
+ hc->hw.r_cirm &= ~V_SRES;
+ HFC_outb(hc, R_CIRM, hc->hw.r_cirm);
+ udelay(1000); /* instead of 'wait' that may cause locking */
+
+ /* release Speech Design card, if PLX was initialized */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip) && hc->plx_membase) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "%s: release PLXSD card %d\n",
+ __func__, hc->id + 1);
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ writel(PLX_GPIOC_INIT, plx_acc_32);
+ pv = readl(plx_acc_32);
+ /* Termination off */
+ pv &= ~PLX_TERM_ON;
+ /* Disconnect the PCM */
+ pv |= PLX_SLAVE_EN_N;
+ pv &= ~PLX_MASTER_EN;
+ pv &= ~PLX_SYNC_O_EN;
+ /* Put the DSP in Reset */
+ pv &= ~PLX_DSP_RES_N;
+ writel(pv, plx_acc_32);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: PCM off: PLX_GPIO=%x\n",
+ __func__, pv);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ }
+
+ /* disable memory mapped ports / io ports */
+ test_and_clear_bit(HFC_CHIP_PLXSD, &hc->chip); /* prevent resync */
+ pci_write_config_word(hc->pci_dev, PCI_COMMAND, 0);
+ if (hc->pci_membase)
+ iounmap((void *)hc->pci_membase);
+ if (hc->plx_membase)
+ iounmap((void *)hc->plx_membase);
+ if (hc->pci_iobase)
+ release_region(hc->pci_iobase, 8);
+
+ if (hc->pci_dev) {
+ pci_disable_device(hc->pci_dev);
+ pci_set_drvdata(hc->pci_dev, NULL);
+ }
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: done\n", __func__);
+}
+
+/*
+ * function called to reset the HFC chip. A complete software reset of chip
+ * and fifos is done. All configuration of the chip is done.
+ */
+
+static int
+init_chip(struct hfc_multi *hc)
+{
+ u_long flags, val, val2 = 0, rev;
+ int i, err = 0;
+ u_char r_conf_en, rval;
+ u_int *plx_acc_32, pv;
+ u_long plx_flags, hfc_flags;
+ int plx_count;
+ struct hfc_multi *pos, *next, *plx_last_hc;
+
+ spin_lock_irqsave(&hc->lock, flags);
+ /* reset all registers */
+ memset(&hc->hw, 0, sizeof(struct hfcm_hw));
+
+ /* revision check */
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: entered\n", __func__);
+ val = HFC_inb(hc, R_CHIP_ID)>>4;
+ if (val != 0x8 && val != 0xc && val != 0xe) {
+ printk(KERN_INFO "HFC_multi: unknown CHIP_ID:%x\n", (u_int)val);
+ err = -EIO;
+ goto out;
+ }
+ rev = HFC_inb(hc, R_CHIP_RV);
+ printk(KERN_INFO
+ "HFC_multi: detected HFC with chip ID=0x%lx revision=%ld%s\n",
+ val, rev, (rev == 0) ? " (old FIFO handling)" : "");
+ if (rev == 0) {
+ test_and_set_bit(HFC_CHIP_REVISION0, &hc->chip);
+ printk(KERN_WARNING
+ "HFC_multi: NOTE: Your chip is revision 0, "
+ "ask Cologne Chip for update. Newer chips "
+ "have a better FIFO handling. Old chips "
+ "still work but may have slightly lower "
+ "HDLC transmit performance.\n");
+ }
+ if (rev > 1) {
+ printk(KERN_WARNING "HFC_multi: WARNING: This driver doesn't "
+ "consider chip revision = %ld. The chip / "
+ "bridge may not work.\n", rev);
+ }
+
+ /* set s-ram size */
+ hc->Flen = 0x10;
+ hc->Zmin = 0x80;
+ hc->Zlen = 384;
+ hc->DTMFbase = 0x1000;
+ if (test_bit(HFC_CHIP_EXRAM_128, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: changing to 128K extenal RAM\n",
+ __func__);
+ hc->hw.r_ctrl |= V_EXT_RAM;
+ hc->hw.r_ram_sz = 1;
+ hc->Flen = 0x20;
+ hc->Zmin = 0xc0;
+ hc->Zlen = 1856;
+ hc->DTMFbase = 0x2000;
+ }
+ if (test_bit(HFC_CHIP_EXRAM_512, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: changing to 512K extenal RAM\n",
+ __func__);
+ hc->hw.r_ctrl |= V_EXT_RAM;
+ hc->hw.r_ram_sz = 2;
+ hc->Flen = 0x20;
+ hc->Zmin = 0xc0;
+ hc->Zlen = 8000;
+ hc->DTMFbase = 0x2000;
+ }
+ hc->max_trans = poll << 1;
+ if (hc->max_trans > hc->Zlen)
+ hc->max_trans = hc->Zlen;
+
+ /* Speech Design PLX bridge */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "%s: initializing PLXSD card %d\n",
+ __func__, hc->id + 1);
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ writel(PLX_GPIOC_INIT, plx_acc_32);
+ pv = readl(plx_acc_32);
+ /* The first and the last cards are terminating the PCM bus */
+ pv |= PLX_TERM_ON; /* hc is currently the last */
+ /* Disconnect the PCM */
+ pv |= PLX_SLAVE_EN_N;
+ pv &= ~PLX_MASTER_EN;
+ pv &= ~PLX_SYNC_O_EN;
+ /* Put the DSP in Reset */
+ pv &= ~PLX_DSP_RES_N;
+ writel(pv, plx_acc_32);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: slave/term: PLX_GPIO=%x\n",
+ __func__, pv);
+ /*
+ * If we are the 3rd PLXSD card or higher, we must turn
+ * termination of last PLXSD card off.
+ */
+ spin_lock_irqsave(&HFClock, hfc_flags);
+ plx_count = 0;
+ plx_last_hc = NULL;
+ list_for_each_entry_safe(pos, next, &HFClist, list) {
+ if (test_bit(HFC_CHIP_PLXSD, &pos->chip)) {
+ plx_count++;
+ if (pos != hc)
+ plx_last_hc = pos;
+ }
+ }
+ if (plx_count >= 3) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "%s: card %d is between, so "
+ "we disable termination\n",
+ __func__, plx_last_hc->id + 1);
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(plx_last_hc->plx_membase
+ + PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv &= ~PLX_TERM_ON;
+ writel(pv, plx_acc_32);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: term off: PLX_GPIO=%x\n",
+ __func__, pv);
+ }
+ spin_unlock_irqrestore(&HFClock, hfc_flags);
+ hc->hw.r_pcm_md0 = V_F0_LEN; /* shift clock for DSP */
+ }
+
+ /* we only want the real Z2 read-pointer for revision > 0 */
+ if (!test_bit(HFC_CHIP_REVISION0, &hc->chip))
+ hc->hw.r_ram_sz |= V_FZ_MD;
+
+ /* select pcm mode */
+ if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: setting PCM into slave mode\n",
+ __func__);
+ } else
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip) && !plxsd_master) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: setting PCM into master mode\n",
+ __func__);
+ hc->hw.r_pcm_md0 |= V_PCM_MD;
+ } else {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: performing PCM auto detect\n",
+ __func__);
+ }
+
+ /* soft reset */
+ HFC_outb(hc, R_CTRL, hc->hw.r_ctrl);
+ HFC_outb(hc, R_RAM_SZ, hc->hw.r_ram_sz);
+ HFC_outb(hc, R_FIFO_MD, 0);
+ hc->hw.r_cirm = V_SRES | V_HFCRES | V_PCMRES | V_STRES | V_RLD_EPR;
+ HFC_outb(hc, R_CIRM, hc->hw.r_cirm);
+ udelay(100);
+ hc->hw.r_cirm = 0;
+ HFC_outb(hc, R_CIRM, hc->hw.r_cirm);
+ udelay(100);
+ HFC_outb(hc, R_RAM_SZ, hc->hw.r_ram_sz);
+
+ /* Speech Design PLX bridge pcm and sync mode */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ /* Connect PCM */
+ if (hc->hw.r_pcm_md0 & V_PCM_MD) {
+ pv |= PLX_MASTER_EN | PLX_SLAVE_EN_N;
+ pv |= PLX_SYNC_O_EN;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: master: PLX_GPIO=%x\n",
+ __func__, pv);
+ } else {
+ pv &= ~(PLX_MASTER_EN | PLX_SLAVE_EN_N);
+ pv &= ~PLX_SYNC_O_EN;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: slave: PLX_GPIO=%x\n",
+ __func__, pv);
+ }
+ writel(pv, plx_acc_32);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ }
+
+ /* PCM setup */
+ HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x90);
+ if (hc->slots == 32)
+ HFC_outb(hc, R_PCM_MD1, 0x00);
+ if (hc->slots == 64)
+ HFC_outb(hc, R_PCM_MD1, 0x10);
+ if (hc->slots == 128)
+ HFC_outb(hc, R_PCM_MD1, 0x20);
+ HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0xa0);
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip))
+ HFC_outb(hc, R_PCM_MD2, V_SYNC_SRC); /* sync via SYNC_I / O */
+ else
+ HFC_outb(hc, R_PCM_MD2, 0x00); /* sync from interface */
+ HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x00);
+ for (i = 0; i < 256; i++) {
+ HFC_outb_nodebug(hc, R_SLOT, i);
+ HFC_outb_nodebug(hc, A_SL_CFG, 0);
+ HFC_outb_nodebug(hc, A_CONF, 0);
+ hc->slot_owner[i] = -1;
+ }
+
+ /* set clock speed */
+ if (test_bit(HFC_CHIP_CLOCK2, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: setting double clock\n", __func__);
+ HFC_outb(hc, R_BRG_PCM_CFG, V_PCM_CLK);
+ }
+
+ /* B410P GPIO */
+ if (test_bit(HFC_CHIP_B410P, &hc->chip)) {
+ printk(KERN_NOTICE "Setting GPIOs\n");
+ HFC_outb(hc, R_GPIO_SEL, 0x30);
+ HFC_outb(hc, R_GPIO_EN1, 0x3);
+ udelay(1000);
+ printk(KERN_NOTICE "calling vpm_init\n");
+ vpm_init(hc);
+ }
+
+ /* check if R_F0_CNT counts (8 kHz frame count) */
+ val = HFC_inb(hc, R_F0_CNTL);
+ val += HFC_inb(hc, R_F0_CNTH) << 8;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "HFC_multi F0_CNT %ld after reset\n", val);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout((HZ/100)?:1); /* Timeout minimum 10ms */
+ spin_lock_irqsave(&hc->lock, flags);
+ val2 = HFC_inb(hc, R_F0_CNTL);
+ val2 += HFC_inb(hc, R_F0_CNTH) << 8;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "HFC_multi F0_CNT %ld after 10 ms (1st try)\n",
+ val2);
+ if (val2 >= val+8) { /* 1 ms */
+ /* it counts, so we keep the pcm mode */
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip))
+ printk(KERN_INFO "controller is PCM bus MASTER\n");
+ else
+ if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip))
+ printk(KERN_INFO "controller is PCM bus SLAVE\n");
+ else {
+ test_and_set_bit(HFC_CHIP_PCM_SLAVE, &hc->chip);
+ printk(KERN_INFO "controller is PCM bus SLAVE "
+ "(auto detected)\n");
+ }
+ } else {
+ /* does not count */
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) {
+controller_fail:
+ printk(KERN_ERR "HFC_multi ERROR, getting no 125us "
+ "pulse. Seems that controller fails.\n");
+ err = -EIO;
+ goto out;
+ }
+ if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) {
+ printk(KERN_INFO "controller is PCM bus SLAVE "
+ "(ignoring missing PCM clock)\n");
+ } else {
+ /* only one pcm master */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)
+ && plxsd_master) {
+ printk(KERN_ERR "HFC_multi ERROR, no clock "
+ "on another Speech Design card found. "
+ "Please be sure to connect PCM cable.\n");
+ err = -EIO;
+ goto out;
+ }
+ /* retry with master clock */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(hc->plx_membase +
+ PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv |= PLX_MASTER_EN | PLX_SLAVE_EN_N;
+ pv |= PLX_SYNC_O_EN;
+ writel(pv, plx_acc_32);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: master: PLX_GPIO"
+ "=%x\n", __func__, pv);
+ }
+ hc->hw.r_pcm_md0 |= V_PCM_MD;
+ HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x00);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout((HZ/100)?:1); /* Timeout min. 10ms */
+ spin_lock_irqsave(&hc->lock, flags);
+ val2 = HFC_inb(hc, R_F0_CNTL);
+ val2 += HFC_inb(hc, R_F0_CNTH) << 8;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "HFC_multi F0_CNT %ld after "
+ "10 ms (2nd try)\n", val2);
+ if (val2 >= val+8) { /* 1 ms */
+ test_and_set_bit(HFC_CHIP_PCM_MASTER,
+ &hc->chip);
+ printk(KERN_INFO "controller is PCM bus MASTER "
+ "(auto detected)\n");
+ } else
+ goto controller_fail;
+ }
+ }
+
+ /* Release the DSP Reset */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip))
+ plxsd_master = 1;
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC);
+ pv = readl(plx_acc_32);
+ pv |= PLX_DSP_RES_N;
+ writel(pv, plx_acc_32);
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: reset off: PLX_GPIO=%x\n",
+ __func__, pv);
+ }
+
+ /* pcm id */
+ if (hc->pcm)
+ printk(KERN_INFO "controller has given PCM BUS ID %d\n",
+ hc->pcm);
+ else {
+ if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)
+ || test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ PCM_cnt++; /* SD has proprietary bridging */
+ }
+ hc->pcm = PCM_cnt;
+ printk(KERN_INFO "controller has PCM BUS ID %d "
+ "(auto selected)\n", hc->pcm);
+ }
+
+ /* set up timer */
+ HFC_outb(hc, R_TI_WD, poll_timer);
+ hc->hw.r_irqmsk_misc |= V_TI_IRQMSK;
+
+ /*
+ * set up 125us interrupt, only if function pointer is available
+ * and module parameter timer is set
+ */
+ if (timer && hfc_interrupt && register_interrupt) {
+ /* only one chip should use this interrupt */
+ timer = 0;
+ interrupt_registered = 1;
+ hc->hw.r_irqmsk_misc |= V_PROC_IRQMSK;
+ /* deactivate other interrupts in ztdummy */
+ register_interrupt();
+ }
+
+ /* set E1 state machine IRQ */
+ if (hc->type == 1)
+ hc->hw.r_irqmsk_misc |= V_STA_IRQMSK;
+
+ /* set DTMF detection */
+ if (test_bit(HFC_CHIP_DTMF, &hc->chip)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: enabling DTMF detection "
+ "for all B-channel\n", __func__);
+ hc->hw.r_dtmf = V_DTMF_EN | V_DTMF_STOP;
+ if (test_bit(HFC_CHIP_ULAW, &hc->chip))
+ hc->hw.r_dtmf |= V_ULAW_SEL;
+ HFC_outb(hc, R_DTMF_N, 102 - 1);
+ hc->hw.r_irqmsk_misc |= V_DTMF_IRQMSK;
+ }
+
+ /* conference engine */
+ if (test_bit(HFC_CHIP_ULAW, &hc->chip))
+ r_conf_en = V_CONF_EN | V_ULAW;
+ else
+ r_conf_en = V_CONF_EN;
+ HFC_outb(hc, R_CONF_EN, r_conf_en);
+
+ /* setting leds */
+ switch (hc->leds) {
+ case 1: /* HFC-E1 OEM */
+ if (test_bit(HFC_CHIP_WATCHDOG, &hc->chip))
+ HFC_outb(hc, R_GPIO_SEL, 0x32);
+ else
+ HFC_outb(hc, R_GPIO_SEL, 0x30);
+
+ HFC_outb(hc, R_GPIO_EN1, 0x0f);
+ HFC_outb(hc, R_GPIO_OUT1, 0x00);
+
+ HFC_outb(hc, R_GPIO_EN0, V_GPIO_EN2 | V_GPIO_EN3);
+ break;
+
+ case 2: /* HFC-4S OEM */
+ case 3:
+ HFC_outb(hc, R_GPIO_SEL, 0xf0);
+ HFC_outb(hc, R_GPIO_EN1, 0xff);
+ HFC_outb(hc, R_GPIO_OUT1, 0x00);
+ break;
+ }
+
+ /* set master clock */
+ if (hc->masterclk >= 0) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: setting ST master clock "
+ "to port %d (0..%d)\n",
+ __func__, hc->masterclk, hc->ports-1);
+ hc->hw.r_st_sync = hc->masterclk | V_AUTO_SYNC;
+ HFC_outb(hc, R_ST_SYNC, hc->hw.r_st_sync);
+ }
+
+ /* setting misc irq */
+ HFC_outb(hc, R_IRQMSK_MISC, hc->hw.r_irqmsk_misc);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "r_irqmsk_misc.2: 0x%x\n",
+ hc->hw.r_irqmsk_misc);
+
+ /* RAM access test */
+ HFC_outb(hc, R_RAM_ADDR0, 0);
+ HFC_outb(hc, R_RAM_ADDR1, 0);
+ HFC_outb(hc, R_RAM_ADDR2, 0);
+ for (i = 0; i < 256; i++) {
+ HFC_outb_nodebug(hc, R_RAM_ADDR0, i);
+ HFC_outb_nodebug(hc, R_RAM_DATA, ((i*3)&0xff));
+ }
+ for (i = 0; i < 256; i++) {
+ HFC_outb_nodebug(hc, R_RAM_ADDR0, i);
+ HFC_inb_nodebug(hc, R_RAM_DATA);
+ rval = HFC_inb_nodebug(hc, R_INT_DATA);
+ if (rval != ((i * 3) & 0xff)) {
+ printk(KERN_DEBUG
+ "addr:%x val:%x should:%x\n", i, rval,
+ (i * 3) & 0xff);
+ err++;
+ }
+ }
+ if (err) {
+ printk(KERN_DEBUG "aborting - %d RAM access errors\n", err);
+ err = -EIO;
+ goto out;
+ }
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: done\n", __func__);
+out:
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return err;
+}
+
+
+/*
+ * control the watchdog
+ */
+static void
+hfcmulti_watchdog(struct hfc_multi *hc)
+{
+ hc->wdcount++;
+
+ if (hc->wdcount > 10) {
+ hc->wdcount = 0;
+ hc->wdbyte = hc->wdbyte == V_GPIO_OUT2 ?
+ V_GPIO_OUT3 : V_GPIO_OUT2;
+
+ /* printk("Sending Watchdog Kill %x\n",hc->wdbyte); */
+ HFC_outb(hc, R_GPIO_EN0, V_GPIO_EN2 | V_GPIO_EN3);
+ HFC_outb(hc, R_GPIO_OUT0, hc->wdbyte);
+ }
+}
+
+
+
+/*
+ * output leds
+ */
+static void
+hfcmulti_leds(struct hfc_multi *hc)
+{
+ unsigned long lled;
+ unsigned long leddw;
+ int i, state, active, leds;
+ struct dchannel *dch;
+ int led[4];
+
+ hc->ledcount += poll;
+ if (hc->ledcount > 4096) {
+ hc->ledcount -= 4096;
+ hc->ledstate = 0xAFFEAFFE;
+ }
+
+ switch (hc->leds) {
+ case 1: /* HFC-E1 OEM */
+ /* 2 red blinking: NT mode deactivate
+ * 2 red steady: TE mode deactivate
+ * left green: L1 active
+ * left red: frame sync, but no L1
+ * right green: L2 active
+ */
+ if (hc->chan[hc->dslot].sync != 2) { /* no frame sync */
+ if (hc->chan[hc->dslot].dch->dev.D.protocol
+ != ISDN_P_NT_E1) {
+ led[0] = 1;
+ led[1] = 1;
+ } else if (hc->ledcount>>11) {
+ led[0] = 1;
+ led[1] = 1;
+ } else {
+ led[0] = 0;
+ led[1] = 0;
+ }
+ led[2] = 0;
+ led[3] = 0;
+ } else { /* with frame sync */
+ /* TODO make it work */
+ led[0] = 0;
+ led[1] = 0;
+ led[2] = 0;
+ led[3] = 1;
+ }
+ leds = (led[0] | (led[1]<<2) | (led[2]<<1) | (led[3]<<3))^0xF;
+ /* leds are inverted */
+ if (leds != (int)hc->ledstate) {
+ HFC_outb_nodebug(hc, R_GPIO_OUT1, leds);
+ hc->ledstate = leds;
+ }
+ break;
+
+ case 2: /* HFC-4S OEM */
+ /* red blinking = PH_DEACTIVATE NT Mode
+ * red steady = PH_DEACTIVATE TE Mode
+ * green steady = PH_ACTIVATE
+ */
+ for (i = 0; i < 4; i++) {
+ state = 0;
+ active = -1;
+ dch = hc->chan[(i << 2) | 2].dch;
+ if (dch) {
+ state = dch->state;
+ if (dch->dev.D.protocol == ISDN_P_NT_S0)
+ active = 3;
+ else
+ active = 7;
+ }
+ if (state) {
+ if (state == active) {
+ led[i] = 1; /* led green */
+ } else
+ if (dch->dev.D.protocol == ISDN_P_TE_S0)
+ /* TE mode: led red */
+ led[i] = 2;
+ else
+ if (hc->ledcount>>11)
+ /* led red */
+ led[i] = 2;
+ else
+ /* led off */
+ led[i] = 0;
+ } else
+ led[i] = 0; /* led off */
+ }
+ if (test_bit(HFC_CHIP_B410P, &hc->chip)) {
+ leds = 0;
+ for (i = 0; i < 4; i++) {
+ if (led[i] == 1) {
+ /*green*/
+ leds |= (0x2 << (i * 2));
+ } else if (led[i] == 2) {
+ /*red*/
+ leds |= (0x1 << (i * 2));
+ }
+ }
+ if (leds != (int)hc->ledstate) {
+ vpm_out(hc, 0, 0x1a8 + 3, leds);
+ hc->ledstate = leds;
+ }
+ } else {
+ leds = ((led[3] > 0) << 0) | ((led[1] > 0) << 1) |
+ ((led[0] > 0) << 2) | ((led[2] > 0) << 3) |
+ ((led[3] & 1) << 4) | ((led[1] & 1) << 5) |
+ ((led[0] & 1) << 6) | ((led[2] & 1) << 7);
+ if (leds != (int)hc->ledstate) {
+ HFC_outb_nodebug(hc, R_GPIO_EN1, leds & 0x0F);
+ HFC_outb_nodebug(hc, R_GPIO_OUT1, leds >> 4);
+ hc->ledstate = leds;
+ }
+ }
+ break;
+
+ case 3: /* HFC 1S/2S Beronet */
+ /* red blinking = PH_DEACTIVATE NT Mode
+ * red steady = PH_DEACTIVATE TE Mode
+ * green steady = PH_ACTIVATE
+ */
+ for (i = 0; i < 2; i++) {
+ state = 0;
+ active = -1;
+ dch = hc->chan[(i << 2) | 2].dch;
+ if (dch) {
+ state = dch->state;
+ if (dch->dev.D.protocol == ISDN_P_NT_S0)
+ active = 3;
+ else
+ active = 7;
+ }
+ if (state) {
+ if (state == active) {
+ led[i] = 1; /* led green */
+ } else
+ if (dch->dev.D.protocol == ISDN_P_TE_S0)
+ /* TE mode: led red */
+ led[i] = 2;
+ else
+ if (hc->ledcount >> 11)
+ /* led red */
+ led[i] = 2;
+ else
+ /* led off */
+ led[i] = 0;
+ } else
+ led[i] = 0; /* led off */
+ }
+
+
+ leds = (led[0] > 0) | ((led[1] > 0)<<1) | ((led[0]&1)<<2)
+ | ((led[1]&1)<<3);
+ if (leds != (int)hc->ledstate) {
+ HFC_outb_nodebug(hc, R_GPIO_EN1,
+ ((led[0] > 0) << 2) | ((led[1] > 0) << 3));
+ HFC_outb_nodebug(hc, R_GPIO_OUT1,
+ ((led[0] & 1) << 2) | ((led[1] & 1) << 3));
+ hc->ledstate = leds;
+ }
+ break;
+ case 8: /* HFC 8S+ Beronet */
+ lled = 0;
+
+ for (i = 0; i < 8; i++) {
+ state = 0;
+ active = -1;
+ dch = hc->chan[(i << 2) | 2].dch;
+ if (dch) {
+ state = dch->state;
+ if (dch->dev.D.protocol == ISDN_P_NT_S0)
+ active = 3;
+ else
+ active = 7;
+ }
+ if (state) {
+ if (state == active) {
+ lled |= 0 << i;
+ } else
+ if (hc->ledcount >> 11)
+ lled |= 0 << i;
+ else
+ lled |= 1 << i;
+ } else
+ lled |= 1 << i;
+ }
+ leddw = lled << 24 | lled << 16 | lled << 8 | lled;
+ if (leddw != hc->ledstate) {
+ /* HFC_outb(hc, R_BRG_PCM_CFG, 1);
+ HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x3); */
+ /* was _io before */
+ HFC_outb_nodebug(hc, R_BRG_PCM_CFG, 1 | V_PCM_CLK);
+ outw(0x4000, hc->pci_iobase + 4);
+ outl(leddw, hc->pci_iobase);
+ HFC_outb_nodebug(hc, R_BRG_PCM_CFG, V_PCM_CLK);
+ hc->ledstate = leddw;
+ }
+ break;
+ }
+}
+/*
+ * read dtmf coefficients
+ */
+
+static void
+hfcmulti_dtmf(struct hfc_multi *hc)
+{
+ s32 *coeff;
+ u_int mantissa;
+ int co, ch;
+ struct bchannel *bch = NULL;
+ u8 exponent;
+ int dtmf = 0;
+ int addr;
+ u16 w_float;
+ struct sk_buff *skb;
+ struct mISDNhead *hh;
+
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk(KERN_DEBUG "%s: dtmf detection irq\n", __func__);
+ for (ch = 0; ch <= 31; ch++) {
+ /* only process enabled B-channels */
+ bch = hc->chan[ch].bch;
+ if (!bch)
+ continue;
+ if (!hc->created[hc->chan[ch].port])
+ continue;
+ if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
+ continue;
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk(KERN_DEBUG "%s: dtmf channel %d:",
+ __func__, ch);
+ coeff = &(hc->chan[ch].coeff[hc->chan[ch].coeff_count * 16]);
+ dtmf = 1;
+ for (co = 0; co < 8; co++) {
+ /* read W(n-1) coefficient */
+ addr = hc->DTMFbase + ((co<<7) | (ch<<2));
+ HFC_outb_nodebug(hc, R_RAM_ADDR0, addr);
+ HFC_outb_nodebug(hc, R_RAM_ADDR1, addr>>8);
+ HFC_outb_nodebug(hc, R_RAM_ADDR2, (addr>>16)
+ | V_ADDR_INC);
+ w_float = HFC_inb_nodebug(hc, R_RAM_DATA);
+ w_float |= (HFC_inb_nodebug(hc, R_RAM_DATA) << 8);
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk(" %04x", w_float);
+
+ /* decode float (see chip doc) */
+ mantissa = w_float & 0x0fff;
+ if (w_float & 0x8000)
+ mantissa |= 0xfffff000;
+ exponent = (w_float>>12) & 0x7;
+ if (exponent) {
+ mantissa ^= 0x1000;
+ mantissa <<= (exponent-1);
+ }
+
+ /* store coefficient */
+ coeff[co<<1] = mantissa;
+
+ /* read W(n) coefficient */
+ w_float = HFC_inb_nodebug(hc, R_RAM_DATA);
+ w_float |= (HFC_inb_nodebug(hc, R_RAM_DATA) << 8);
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk(" %04x", w_float);
+
+ /* decode float (see chip doc) */
+ mantissa = w_float & 0x0fff;
+ if (w_float & 0x8000)
+ mantissa |= 0xfffff000;
+ exponent = (w_float>>12) & 0x7;
+ if (exponent) {
+ mantissa ^= 0x1000;
+ mantissa <<= (exponent-1);
+ }
+
+ /* store coefficient */
+ coeff[(co<<1)|1] = mantissa;
+ }
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk("%s: DTMF ready %08x %08x %08x %08x "
+ "%08x %08x %08x %08x\n", __func__,
+ coeff[0], coeff[1], coeff[2], coeff[3],
+ coeff[4], coeff[5], coeff[6], coeff[7]);
+ hc->chan[ch].coeff_count++;
+ if (hc->chan[ch].coeff_count == 8) {
+ hc->chan[ch].coeff_count = 0;
+ skb = mI_alloc_skb(512, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_WARNING "%s: No memory for skb\n",
+ __func__);
+ continue;
+ }
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = PH_CONTROL_IND;
+ hh->id = DTMF_HFC_COEF;
+ memcpy(skb_put(skb, 512), hc->chan[ch].coeff, 512);
+ recv_Bchannel_skb(bch, skb);
+ }
+ }
+
+ /* restart DTMF processing */
+ hc->dtmf = dtmf;
+ if (dtmf)
+ HFC_outb_nodebug(hc, R_DTMF, hc->hw.r_dtmf | V_RST_DTMF);
+}
+
+
+/*
+ * fill fifo as much as possible
+ */
+
+static void
+hfcmulti_tx(struct hfc_multi *hc, int ch)
+{
+ int i, ii, temp, len = 0;
+ int Zspace, z1, z2; /* must be int for calculation */
+ int Fspace, f1, f2;
+ u_char *d;
+ int *txpending, slot_tx;
+ struct bchannel *bch;
+ struct dchannel *dch;
+ struct sk_buff **sp = NULL;
+ int *idxp;
+
+ bch = hc->chan[ch].bch;
+ dch = hc->chan[ch].dch;
+ if ((!dch) && (!bch))
+ return;
+
+ txpending = &hc->chan[ch].txpending;
+ slot_tx = hc->chan[ch].slot_tx;
+ if (dch) {
+ if (!test_bit(FLG_ACTIVE, &dch->Flags))
+ return;
+ sp = &dch->tx_skb;
+ idxp = &dch->tx_idx;
+ } else {
+ if (!test_bit(FLG_ACTIVE, &bch->Flags))
+ return;
+ sp = &bch->tx_skb;
+ idxp = &bch->tx_idx;
+ }
+ if (*sp)
+ len = (*sp)->len;
+
+ if ((!len) && *txpending != 1)
+ return; /* no data */
+
+ if (test_bit(HFC_CHIP_B410P, &hc->chip) &&
+ (hc->chan[ch].protocol == ISDN_P_B_RAW) &&
+ (hc->chan[ch].slot_rx < 0) &&
+ (hc->chan[ch].slot_tx < 0))
+ HFC_outb_nodebug(hc, R_FIFO, 0x20 | (ch << 1));
+ else
+ HFC_outb_nodebug(hc, R_FIFO, ch << 1);
+ HFC_wait_nodebug(hc);
+
+ if (*txpending == 2) {
+ /* reset fifo */
+ HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait_nodebug(hc);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ *txpending = 1;
+ }
+next_frame:
+ if (dch || test_bit(FLG_HDLC, &bch->Flags)) {
+ f1 = HFC_inb_nodebug(hc, A_F1);
+ f2 = HFC_inb_nodebug(hc, A_F2);
+ while (f2 != (temp = HFC_inb_nodebug(hc, A_F2))) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG
+ "%s(card %d): reread f2 because %d!=%d\n",
+ __func__, hc->id + 1, temp, f2);
+ f2 = temp; /* repeat until F2 is equal */
+ }
+ Fspace = f2 - f1 - 1;
+ if (Fspace < 0)
+ Fspace += hc->Flen;
+ /*
+ * Old FIFO handling doesn't give us the current Z2 read
+ * pointer, so we cannot send the next frame before the fifo
+ * is empty. It makes no difference except for a slightly
+ * lower performance.
+ */
+ if (test_bit(HFC_CHIP_REVISION0, &hc->chip)) {
+ if (f1 != f2)
+ Fspace = 0;
+ else
+ Fspace = 1;
+ }
+ /* one frame only for ST D-channels, to allow resending */
+ if (hc->type != 1 && dch) {
+ if (f1 != f2)
+ Fspace = 0;
+ }
+ /* F-counter full condition */
+ if (Fspace == 0)
+ return;
+ }
+ z1 = HFC_inw_nodebug(hc, A_Z1) - hc->Zmin;
+ z2 = HFC_inw_nodebug(hc, A_Z2) - hc->Zmin;
+ while (z2 != (temp = (HFC_inw_nodebug(hc, A_Z2) - hc->Zmin))) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG "%s(card %d): reread z2 because "
+ "%d!=%d\n", __func__, hc->id + 1, temp, z2);
+ z2 = temp; /* repeat unti Z2 is equal */
+ }
+ Zspace = z2 - z1;
+ if (Zspace <= 0)
+ Zspace += hc->Zlen;
+ Zspace -= 4; /* keep not too full, so pointers will not overrun */
+ /* fill transparent data only to maxinum transparent load (minus 4) */
+ if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags))
+ Zspace = Zspace - hc->Zlen + hc->max_trans;
+ if (Zspace <= 0) /* no space of 4 bytes */
+ return;
+
+ /* if no data */
+ if (!len) {
+ if (z1 == z2) { /* empty */
+ /* if done with FIFO audio data during PCM connection */
+ if (bch && (!test_bit(FLG_HDLC, &bch->Flags)) &&
+ *txpending && slot_tx >= 0) {
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG
+ "%s: reconnecting PCM due to no "
+ "more FIFO data: channel %d "
+ "slot_tx %d\n",
+ __func__, ch, slot_tx);
+ /* connect slot */
+ HFC_outb(hc, A_CON_HDLC, 0xc0 | 0x00 |
+ V_HDLC_TRP | V_IFF);
+ HFC_outb_nodebug(hc, R_FIFO, ch<<1 | 1);
+ HFC_wait_nodebug(hc);
+ HFC_outb(hc, A_CON_HDLC, 0xc0 | 0x00 |
+ V_HDLC_TRP | V_IFF);
+ HFC_outb_nodebug(hc, R_FIFO, ch<<1);
+ HFC_wait_nodebug(hc);
+ }
+ *txpending = 0;
+ }
+ return; /* no data */
+ }
+
+ /* if audio data and connected slot */
+ if (bch && (!test_bit(FLG_HDLC, &bch->Flags)) && (!*txpending)
+ && slot_tx >= 0) {
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG "%s: disconnecting PCM due to "
+ "FIFO data: channel %d slot_tx %d\n",
+ __func__, ch, slot_tx);
+ /* disconnect slot */
+ HFC_outb(hc, A_CON_HDLC, 0x80 | 0x00 | V_HDLC_TRP | V_IFF);
+ HFC_outb_nodebug(hc, R_FIFO, ch<<1 | 1);
+ HFC_wait_nodebug(hc);
+ HFC_outb(hc, A_CON_HDLC, 0x80 | 0x00 | V_HDLC_TRP | V_IFF);
+ HFC_outb_nodebug(hc, R_FIFO, ch<<1);
+ HFC_wait_nodebug(hc);
+ }
+ *txpending = 1;
+
+ /* show activity */
+ hc->activity[hc->chan[ch].port] = 1;
+
+ /* fill fifo to what we have left */
+ ii = len;
+ if (dch || test_bit(FLG_HDLC, &bch->Flags))
+ temp = 1;
+ else
+ temp = 0;
+ i = *idxp;
+ d = (*sp)->data + i;
+ if (ii - i > Zspace)
+ ii = Zspace + i;
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG "%s(card %d): fifo(%d) has %d bytes space "
+ "left (z1=%04x, z2=%04x) sending %d of %d bytes %s\n",
+ __func__, hc->id + 1, ch, Zspace, z1, z2, ii-i, len-i,
+ temp ? "HDLC":"TRANS");
+
+
+ /* Have to prep the audio data */
+ hc->write_fifo(hc, d, ii - i);
+ *idxp = ii;
+
+ /* if not all data has been written */
+ if (ii != len) {
+ /* NOTE: fifo is started by the calling function */
+ return;
+ }
+
+ /* if all data has been written, terminate frame */
+ if (dch || test_bit(FLG_HDLC, &bch->Flags)) {
+ /* increment f-counter */
+ HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_INC_F);
+ HFC_wait_nodebug(hc);
+ }
+
+ /* send confirm, since get_net_bframe will not do it with trans */
+ if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags))
+ confirm_Bsend(bch);
+
+ /* check for next frame */
+ dev_kfree_skb(*sp);
+ if (bch && get_next_bframe(bch)) { /* hdlc is confirmed here */
+ len = (*sp)->len;
+ goto next_frame;
+ }
+ if (dch && get_next_dframe(dch)) {
+ len = (*sp)->len;
+ goto next_frame;
+ }
+
+ /*
+ * now we have no more data, so in case of transparent,
+ * we set the last byte in fifo to 'silence' in case we will get
+ * no more data at all. this prevents sending an undefined value.
+ */
+ if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags))
+ HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence);
+}
+
+
+/* NOTE: only called if E1 card is in active state */
+static void
+hfcmulti_rx(struct hfc_multi *hc, int ch)
+{
+ int temp;
+ int Zsize, z1, z2 = 0; /* = 0, to make GCC happy */
+ int f1 = 0, f2 = 0; /* = 0, to make GCC happy */
+ int again = 0;
+ struct bchannel *bch;
+ struct dchannel *dch;
+ struct sk_buff *skb, **sp = NULL;
+ int maxlen;
+
+ bch = hc->chan[ch].bch;
+ dch = hc->chan[ch].dch;
+ if ((!dch) && (!bch))
+ return;
+ if (dch) {
+ if (!test_bit(FLG_ACTIVE, &dch->Flags))
+ return;
+ sp = &dch->rx_skb;
+ maxlen = dch->maxlen;
+ } else {
+ if (!test_bit(FLG_ACTIVE, &bch->Flags))
+ return;
+ sp = &bch->rx_skb;
+ maxlen = bch->maxlen;
+ }
+next_frame:
+ /* on first AND before getting next valid frame, R_FIFO must be written
+ to. */
+ if (test_bit(HFC_CHIP_B410P, &hc->chip) &&
+ (hc->chan[ch].protocol == ISDN_P_B_RAW) &&
+ (hc->chan[ch].slot_rx < 0) &&
+ (hc->chan[ch].slot_tx < 0))
+ HFC_outb_nodebug(hc, R_FIFO, 0x20 | (ch<<1) | 1);
+ else
+ HFC_outb_nodebug(hc, R_FIFO, (ch<<1)|1);
+ HFC_wait_nodebug(hc);
+
+ /* ignore if rx is off BUT change fifo (above) to start pending TX */
+ if (hc->chan[ch].rx_off)
+ return;
+
+ if (dch || test_bit(FLG_HDLC, &bch->Flags)) {
+ f1 = HFC_inb_nodebug(hc, A_F1);
+ while (f1 != (temp = HFC_inb_nodebug(hc, A_F1))) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG
+ "%s(card %d): reread f1 because %d!=%d\n",
+ __func__, hc->id + 1, temp, f1);
+ f1 = temp; /* repeat until F1 is equal */
+ }
+ f2 = HFC_inb_nodebug(hc, A_F2);
+ }
+ z1 = HFC_inw_nodebug(hc, A_Z1) - hc->Zmin;
+ while (z1 != (temp = (HFC_inw_nodebug(hc, A_Z1) - hc->Zmin))) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG "%s(card %d): reread z2 because "
+ "%d!=%d\n", __func__, hc->id + 1, temp, z2);
+ z1 = temp; /* repeat until Z1 is equal */
+ }
+ z2 = HFC_inw_nodebug(hc, A_Z2) - hc->Zmin;
+ Zsize = z1 - z2;
+ if ((dch || test_bit(FLG_HDLC, &bch->Flags)) && f1 != f2)
+ /* complete hdlc frame */
+ Zsize++;
+ if (Zsize < 0)
+ Zsize += hc->Zlen;
+ /* if buffer is empty */
+ if (Zsize <= 0)
+ return;
+
+ if (*sp == NULL) {
+ *sp = mI_alloc_skb(maxlen + 3, GFP_ATOMIC);
+ if (*sp == NULL) {
+ printk(KERN_DEBUG "%s: No mem for rx_skb\n",
+ __func__);
+ return;
+ }
+ }
+ /* show activity */
+ hc->activity[hc->chan[ch].port] = 1;
+
+ /* empty fifo with what we have */
+ if (dch || test_bit(FLG_HDLC, &bch->Flags)) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG "%s(card %d): fifo(%d) reading %d "
+ "bytes (z1=%04x, z2=%04x) HDLC %s (f1=%d, f2=%d) "
+ "got=%d (again %d)\n", __func__, hc->id + 1, ch,
+ Zsize, z1, z2, (f1 == f2) ? "fragment" : "COMPLETE",
+ f1, f2, Zsize + (*sp)->len, again);
+ /* HDLC */
+ if ((Zsize + (*sp)->len) > (maxlen + 3)) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG
+ "%s(card %d): hdlc-frame too large.\n",
+ __func__, hc->id + 1);
+ skb_trim(*sp, 0);
+ HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait_nodebug(hc);
+ return;
+ }
+
+ hc->read_fifo(hc, skb_put(*sp, Zsize), Zsize);
+
+ if (f1 != f2) {
+ /* increment Z2,F2-counter */
+ HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_INC_F);
+ HFC_wait_nodebug(hc);
+ /* check size */
+ if ((*sp)->len < 4) {
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG
+ "%s(card %d): Frame below minimum "
+ "size\n", __func__, hc->id + 1);
+ skb_trim(*sp, 0);
+ goto next_frame;
+ }
+ /* there is at least one complete frame, check crc */
+ if ((*sp)->data[(*sp)->len - 1]) {
+ if (debug & DEBUG_HFCMULTI_CRC)
+ printk(KERN_DEBUG
+ "%s: CRC-error\n", __func__);
+ skb_trim(*sp, 0);
+ goto next_frame;
+ }
+ skb_trim(*sp, (*sp)->len - 3);
+ if ((*sp)->len < MISDN_COPY_SIZE) {
+ skb = *sp;
+ *sp = mI_alloc_skb(skb->len, GFP_ATOMIC);
+ if (*sp) {
+ memcpy(skb_put(*sp, skb->len),
+ skb->data, skb->len);
+ skb_trim(skb, 0);
+ } else {
+ printk(KERN_DEBUG "%s: No mem\n",
+ __func__);
+ *sp = skb;
+ skb = NULL;
+ }
+ } else {
+ skb = NULL;
+ }
+ if (debug & DEBUG_HFCMULTI_FIFO) {
+ printk(KERN_DEBUG "%s(card %d):",
+ __func__, hc->id + 1);
+ temp = 0;
+ while (temp < (*sp)->len)
+ printk(" %02x", (*sp)->data[temp++]);
+ printk("\n");
+ }
+ if (dch)
+ recv_Dchannel(dch);
+ else
+ recv_Bchannel(bch);
+ *sp = skb;
+ again++;
+ goto next_frame;
+ }
+ /* there is an incomplete frame */
+ } else {
+ /* transparent */
+ if (Zsize > skb_tailroom(*sp))
+ Zsize = skb_tailroom(*sp);
+ hc->read_fifo(hc, skb_put(*sp, Zsize), Zsize);
+ if (((*sp)->len) < MISDN_COPY_SIZE) {
+ skb = *sp;
+ *sp = mI_alloc_skb(skb->len, GFP_ATOMIC);
+ if (*sp) {
+ memcpy(skb_put(*sp, skb->len),
+ skb->data, skb->len);
+ skb_trim(skb, 0);
+ } else {
+ printk(KERN_DEBUG "%s: No mem\n", __func__);
+ *sp = skb;
+ skb = NULL;
+ }
+ } else {
+ skb = NULL;
+ }
+ if (debug & DEBUG_HFCMULTI_FIFO)
+ printk(KERN_DEBUG
+ "%s(card %d): fifo(%d) reading %d bytes "
+ "(z1=%04x, z2=%04x) TRANS\n",
+ __func__, hc->id + 1, ch, Zsize, z1, z2);
+ /* only bch is transparent */
+ recv_Bchannel(bch);
+ *sp = skb;
+ }
+}
+
+
+/*
+ * Interrupt handler
+ */
+static void
+signal_state_up(struct dchannel *dch, int info, char *msg)
+{
+ struct sk_buff *skb;
+ int id, data = info;
+
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG "%s: %s\n", __func__, msg);
+
+ id = TEI_SAPI | (GROUP_TEI << 8); /* manager address */
+
+ skb = _alloc_mISDN_skb(MPH_INFORMATION_IND, id, sizeof(data), &data,
+ GFP_ATOMIC);
+ if (!skb)
+ return;
+ recv_Dchannel_skb(dch, skb);
+}
+
+static inline void
+handle_timer_irq(struct hfc_multi *hc)
+{
+ int ch, temp;
+ struct dchannel *dch;
+ u_long flags;
+
+ /* process queued resync jobs */
+ if (hc->e1_resync) {
+ /* lock, so e1_resync gets not changed */
+ spin_lock_irqsave(&HFClock, flags);
+ if (hc->e1_resync & 1) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "Enable SYNC_I\n");
+ HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC);
+ /* disable JATT, if RX_SYNC is set */
+ if (test_bit(HFC_CHIP_RX_SYNC, &hc->chip))
+ HFC_outb(hc, R_SYNC_OUT, V_SYNC_E1_RX);
+ }
+ if (hc->e1_resync & 2) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG "Enable jatt PLL\n");
+ HFC_outb(hc, R_SYNC_CTRL, V_SYNC_OFFS);
+ }
+ if (hc->e1_resync & 4) {
+ if (debug & DEBUG_HFCMULTI_PLXSD)
+ printk(KERN_DEBUG
+ "Enable QUARTZ for HFC-E1\n");
+ /* set jatt to quartz */
+ HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC
+ | V_JATT_OFF);
+ /* switch to JATT, in case it is not already */
+ HFC_outb(hc, R_SYNC_OUT, 0);
+ }
+ hc->e1_resync = 0;
+ spin_unlock_irqrestore(&HFClock, flags);
+ }
+
+ if (hc->type != 1 || hc->e1_state == 1)
+ for (ch = 0; ch <= 31; ch++) {
+ if (hc->created[hc->chan[ch].port]) {
+ hfcmulti_tx(hc, ch);
+ /* fifo is started when switching to rx-fifo */
+ hfcmulti_rx(hc, ch);
+ if (hc->chan[ch].dch &&
+ hc->chan[ch].nt_timer > -1) {
+ dch = hc->chan[ch].dch;
+ if (!(--hc->chan[ch].nt_timer)) {
+ schedule_event(dch,
+ FLG_PHCHANGE);
+ if (debug &
+ DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: nt_timer at "
+ "state %x\n",
+ __func__,
+ dch->state);
+ }
+ }
+ }
+ }
+ if (hc->type == 1 && hc->created[0]) {
+ dch = hc->chan[hc->dslot].dch;
+ if (test_bit(HFC_CFG_REPORT_LOS, &hc->chan[hc->dslot].cfg)) {
+ /* LOS */
+ temp = HFC_inb_nodebug(hc, R_SYNC_STA) & V_SIG_LOS;
+ if (!temp && hc->chan[hc->dslot].los)
+ signal_state_up(dch, L1_SIGNAL_LOS_ON,
+ "LOS detected");
+ if (temp && !hc->chan[hc->dslot].los)
+ signal_state_up(dch, L1_SIGNAL_LOS_OFF,
+ "LOS gone");
+ hc->chan[hc->dslot].los = temp;
+ }
+ if (test_bit(HFC_CFG_REPORT_AIS, &hc->chan[hc->dslot].cfg)) {
+ /* AIS */
+ temp = HFC_inb_nodebug(hc, R_SYNC_STA) & V_AIS;
+ if (!temp && hc->chan[hc->dslot].ais)
+ signal_state_up(dch, L1_SIGNAL_AIS_ON,
+ "AIS detected");
+ if (temp && !hc->chan[hc->dslot].ais)
+ signal_state_up(dch, L1_SIGNAL_AIS_OFF,
+ "AIS gone");
+ hc->chan[hc->dslot].ais = temp;
+ }
+ if (test_bit(HFC_CFG_REPORT_SLIP, &hc->chan[hc->dslot].cfg)) {
+ /* SLIP */
+ temp = HFC_inb_nodebug(hc, R_SLIP) & V_FOSLIP_RX;
+ if (!temp && hc->chan[hc->dslot].slip_rx)
+ signal_state_up(dch, L1_SIGNAL_SLIP_RX,
+ " bit SLIP detected RX");
+ hc->chan[hc->dslot].slip_rx = temp;
+ temp = HFC_inb_nodebug(hc, R_SLIP) & V_FOSLIP_TX;
+ if (!temp && hc->chan[hc->dslot].slip_tx)
+ signal_state_up(dch, L1_SIGNAL_SLIP_TX,
+ " bit SLIP detected TX");
+ hc->chan[hc->dslot].slip_tx = temp;
+ }
+ if (test_bit(HFC_CFG_REPORT_RDI, &hc->chan[hc->dslot].cfg)) {
+ /* RDI */
+ temp = HFC_inb_nodebug(hc, R_RX_SL0_0) & V_A;
+ if (!temp && hc->chan[hc->dslot].rdi)
+ signal_state_up(dch, L1_SIGNAL_RDI_ON,
+ "RDI detected");
+ if (temp && !hc->chan[hc->dslot].rdi)
+ signal_state_up(dch, L1_SIGNAL_RDI_OFF,
+ "RDI gone");
+ hc->chan[hc->dslot].rdi = temp;
+ }
+ temp = HFC_inb_nodebug(hc, R_JATT_DIR);
+ switch (hc->chan[hc->dslot].sync) {
+ case 0:
+ if ((temp & 0x60) == 0x60) {
+ if (debug & DEBUG_HFCMULTI_SYNC)
+ printk(KERN_DEBUG
+ "%s: (id=%d) E1 now "
+ "in clock sync\n",
+ __func__, hc->id);
+ HFC_outb(hc, R_RX_OFF,
+ hc->chan[hc->dslot].jitter | V_RX_INIT);
+ HFC_outb(hc, R_TX_OFF,
+ hc->chan[hc->dslot].jitter | V_RX_INIT);
+ hc->chan[hc->dslot].sync = 1;
+ goto check_framesync;
+ }
+ break;
+ case 1:
+ if ((temp & 0x60) != 0x60) {
+ if (debug & DEBUG_HFCMULTI_SYNC)
+ printk(KERN_DEBUG
+ "%s: (id=%d) E1 "
+ "lost clock sync\n",
+ __func__, hc->id);
+ hc->chan[hc->dslot].sync = 0;
+ break;
+ }
+check_framesync:
+ temp = HFC_inb_nodebug(hc, R_SYNC_STA);
+ if (temp == 0x27) {
+ if (debug & DEBUG_HFCMULTI_SYNC)
+ printk(KERN_DEBUG
+ "%s: (id=%d) E1 "
+ "now in frame sync\n",
+ __func__, hc->id);
+ hc->chan[hc->dslot].sync = 2;
+ }
+ break;
+ case 2:
+ if ((temp & 0x60) != 0x60) {
+ if (debug & DEBUG_HFCMULTI_SYNC)
+ printk(KERN_DEBUG
+ "%s: (id=%d) E1 lost "
+ "clock & frame sync\n",
+ __func__, hc->id);
+ hc->chan[hc->dslot].sync = 0;
+ break;
+ }
+ temp = HFC_inb_nodebug(hc, R_SYNC_STA);
+ if (temp != 0x27) {
+ if (debug & DEBUG_HFCMULTI_SYNC)
+ printk(KERN_DEBUG
+ "%s: (id=%d) E1 "
+ "lost frame sync\n",
+ __func__, hc->id);
+ hc->chan[hc->dslot].sync = 1;
+ }
+ break;
+ }
+ }
+
+ if (test_bit(HFC_CHIP_WATCHDOG, &hc->chip))
+ hfcmulti_watchdog(hc);
+
+ if (hc->leds)
+ hfcmulti_leds(hc);
+}
+
+static void
+ph_state_irq(struct hfc_multi *hc, u_char r_irq_statech)
+{
+ struct dchannel *dch;
+ int ch;
+ int active;
+ u_char st_status, temp;
+
+ /* state machine */
+ for (ch = 0; ch <= 31; ch++) {
+ if (hc->chan[ch].dch) {
+ dch = hc->chan[ch].dch;
+ if (r_irq_statech & 1) {
+ HFC_outb_nodebug(hc, R_ST_SEL,
+ hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ /* undocumented: status changes during read */
+ st_status = HFC_inb_nodebug(hc, A_ST_RD_STATE);
+ while (st_status != (temp =
+ HFC_inb_nodebug(hc, A_ST_RD_STATE))) {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG "%s: reread "
+ "STATE because %d!=%d\n",
+ __func__, temp,
+ st_status);
+ st_status = temp; /* repeat */
+ }
+
+ /* Speech Design TE-sync indication */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip) &&
+ dch->dev.D.protocol == ISDN_P_TE_S0) {
+ if (st_status & V_FR_SYNC_ST)
+ hc->syncronized |=
+ (1 << hc->chan[ch].port);
+ else
+ hc->syncronized &=
+ ~(1 << hc->chan[ch].port);
+ }
+ dch->state = st_status & 0x0f;
+ if (dch->dev.D.protocol == ISDN_P_NT_S0)
+ active = 3;
+ else
+ active = 7;
+ if (dch->state == active) {
+ HFC_outb_nodebug(hc, R_FIFO,
+ (ch << 1) | 1);
+ HFC_wait_nodebug(hc);
+ HFC_outb_nodebug(hc,
+ R_INC_RES_FIFO, V_RES_F);
+ HFC_wait_nodebug(hc);
+ dch->tx_idx = 0;
+ }
+ schedule_event(dch, FLG_PHCHANGE);
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: S/T newstate %x port %d\n",
+ __func__, dch->state,
+ hc->chan[ch].port);
+ }
+ r_irq_statech >>= 1;
+ }
+ }
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip))
+ plxsd_checksync(hc, 0);
+}
+
+static void
+fifo_irq(struct hfc_multi *hc, int block)
+{
+ int ch, j;
+ struct dchannel *dch;
+ struct bchannel *bch;
+ u_char r_irq_fifo_bl;
+
+ r_irq_fifo_bl = HFC_inb_nodebug(hc, R_IRQ_FIFO_BL0 + block);
+ j = 0;
+ while (j < 8) {
+ ch = (block << 2) + (j >> 1);
+ dch = hc->chan[ch].dch;
+ bch = hc->chan[ch].bch;
+ if (((!dch) && (!bch)) || (!hc->created[hc->chan[ch].port])) {
+ j += 2;
+ continue;
+ }
+ if (dch && (r_irq_fifo_bl & (1 << j)) &&
+ test_bit(FLG_ACTIVE, &dch->Flags)) {
+ hfcmulti_tx(hc, ch);
+ /* start fifo */
+ HFC_outb_nodebug(hc, R_FIFO, 0);
+ HFC_wait_nodebug(hc);
+ }
+ if (bch && (r_irq_fifo_bl & (1 << j)) &&
+ test_bit(FLG_ACTIVE, &bch->Flags)) {
+ hfcmulti_tx(hc, ch);
+ /* start fifo */
+ HFC_outb_nodebug(hc, R_FIFO, 0);
+ HFC_wait_nodebug(hc);
+ }
+ j++;
+ if (dch && (r_irq_fifo_bl & (1 << j)) &&
+ test_bit(FLG_ACTIVE, &dch->Flags)) {
+ hfcmulti_rx(hc, ch);
+ }
+ if (bch && (r_irq_fifo_bl & (1 << j)) &&
+ test_bit(FLG_ACTIVE, &bch->Flags)) {
+ hfcmulti_rx(hc, ch);
+ }
+ j++;
+ }
+}
+
+#ifdef IRQ_DEBUG
+int irqsem;
+#endif
+static irqreturn_t
+hfcmulti_interrupt(int intno, void *dev_id)
+{
+#ifdef IRQCOUNT_DEBUG
+ static int iq1 = 0, iq2 = 0, iq3 = 0, iq4 = 0,
+ iq5 = 0, iq6 = 0, iqcnt = 0;
+#endif
+ static int count;
+ struct hfc_multi *hc = dev_id;
+ struct dchannel *dch;
+ u_char r_irq_statech, status, r_irq_misc, r_irq_oview;
+ int i;
+ u_short *plx_acc, wval;
+ u_char e1_syncsta, temp;
+ u_long flags;
+
+ if (!hc) {
+ printk(KERN_ERR "HFC-multi: Spurious interrupt!\n");
+ return IRQ_NONE;
+ }
+
+ spin_lock(&hc->lock);
+
+#ifdef IRQ_DEBUG
+ if (irqsem)
+ printk(KERN_ERR "irq for card %d during irq from "
+ "card %d, this is no bug.\n", hc->id + 1, irqsem);
+ irqsem = hc->id + 1;
+#endif
+
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ spin_lock_irqsave(&plx_lock, flags);
+ plx_acc = (u_short *)(hc->plx_membase + PLX_INTCSR);
+ wval = readw(plx_acc);
+ spin_unlock_irqrestore(&plx_lock, flags);
+ if (!(wval & PLX_INTCSR_LINTI1_STATUS))
+ goto irq_notforus;
+ }
+
+ status = HFC_inb_nodebug(hc, R_STATUS);
+ r_irq_statech = HFC_inb_nodebug(hc, R_IRQ_STATECH);
+#ifdef IRQCOUNT_DEBUG
+ if (r_irq_statech)
+ iq1++;
+ if (status & V_DTMF_STA)
+ iq2++;
+ if (status & V_LOST_STA)
+ iq3++;
+ if (status & V_EXT_IRQSTA)
+ iq4++;
+ if (status & V_MISC_IRQSTA)
+ iq5++;
+ if (status & V_FR_IRQSTA)
+ iq6++;
+ if (iqcnt++ > 5000) {
+ printk(KERN_ERR "iq1:%x iq2:%x iq3:%x iq4:%x iq5:%x iq6:%x\n",
+ iq1, iq2, iq3, iq4, iq5, iq6);
+ iqcnt = 0;
+ }
+#endif
+ if (!r_irq_statech &&
+ !(status & (V_DTMF_STA | V_LOST_STA | V_EXT_IRQSTA |
+ V_MISC_IRQSTA | V_FR_IRQSTA))) {
+ /* irq is not for us */
+ goto irq_notforus;
+ }
+ hc->irqcnt++;
+ if (r_irq_statech) {
+ if (hc->type != 1)
+ ph_state_irq(hc, r_irq_statech);
+ }
+ if (status & V_EXT_IRQSTA)
+ ; /* external IRQ */
+ if (status & V_LOST_STA) {
+ /* LOST IRQ */
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_LOST); /* clear irq! */
+ }
+ if (status & V_MISC_IRQSTA) {
+ /* misc IRQ */
+ r_irq_misc = HFC_inb_nodebug(hc, R_IRQ_MISC);
+ if (r_irq_misc & V_STA_IRQ) {
+ if (hc->type == 1) {
+ /* state machine */
+ dch = hc->chan[hc->dslot].dch;
+ e1_syncsta = HFC_inb_nodebug(hc, R_SYNC_STA);
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)
+ && hc->e1_getclock) {
+ if (e1_syncsta & V_FR_SYNC_E1)
+ hc->syncronized = 1;
+ else
+ hc->syncronized = 0;
+ }
+ /* undocumented: status changes during read */
+ dch->state = HFC_inb_nodebug(hc, R_E1_RD_STA);
+ while (dch->state != (temp =
+ HFC_inb_nodebug(hc, R_E1_RD_STA))) {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG "%s: reread "
+ "STATE because %d!=%d\n",
+ __func__, temp,
+ dch->state);
+ dch->state = temp; /* repeat */
+ }
+ dch->state = HFC_inb_nodebug(hc, R_E1_RD_STA)
+ & 0x7;
+ schedule_event(dch, FLG_PHCHANGE);
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: E1 (id=%d) newstate %x\n",
+ __func__, hc->id, dch->state);
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip))
+ plxsd_checksync(hc, 0);
+ }
+ }
+ if (r_irq_misc & V_TI_IRQ)
+ handle_timer_irq(hc);
+
+ if (r_irq_misc & V_DTMF_IRQ) {
+ /* -> DTMF IRQ */
+ hfcmulti_dtmf(hc);
+ }
+ /* TODO: REPLACE !!!! 125 us Interrupts are not acceptable */
+ if (r_irq_misc & V_IRQ_PROC) {
+ /* IRQ every 125us */
+ count++;
+ /* generate 1kHz signal */
+ if (count == 8) {
+ if (hfc_interrupt)
+ hfc_interrupt();
+ count = 0;
+ }
+ }
+
+ }
+ if (status & V_FR_IRQSTA) {
+ /* FIFO IRQ */
+ r_irq_oview = HFC_inb_nodebug(hc, R_IRQ_OVIEW);
+ for (i = 0; i < 8; i++) {
+ if (r_irq_oview & (1 << i))
+ fifo_irq(hc, i);
+ }
+ }
+
+#ifdef IRQ_DEBUG
+ irqsem = 0;
+#endif
+ spin_unlock(&hc->lock);
+ return IRQ_HANDLED;
+
+irq_notforus:
+#ifdef IRQ_DEBUG
+ irqsem = 0;
+#endif
+ spin_unlock(&hc->lock);
+ return IRQ_NONE;
+}
+
+
+/*
+ * timer callback for D-chan busy resolution. Currently no function
+ */
+
+static void
+hfcmulti_dbusy_timer(struct hfc_multi *hc)
+{
+}
+
+
+/*
+ * activate/deactivate hardware for selected channels and mode
+ *
+ * configure B-channel with the given protocol
+ * ch eqals to the HFC-channel (0-31)
+ * ch is the number of channel (0-4,4-7,8-11,12-15,16-19,20-23,24-27,28-31
+ * for S/T, 1-31 for E1)
+ * the hdlc interrupts will be set/unset
+ */
+static int
+mode_hfcmulti(struct hfc_multi *hc, int ch, int protocol, int slot_tx,
+ int bank_tx, int slot_rx, int bank_rx)
+{
+ int flow_tx = 0, flow_rx = 0, routing = 0;
+ int oslot_tx, oslot_rx;
+ int conf;
+
+ if (ch < 0 || ch > 31)
+ return EINVAL;
+ oslot_tx = hc->chan[ch].slot_tx;
+ oslot_rx = hc->chan[ch].slot_rx;
+ conf = hc->chan[ch].conf;
+
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG
+ "%s: card %d channel %d protocol %x slot old=%d new=%d "
+ "bank new=%d (TX) slot old=%d new=%d bank new=%d (RX)\n",
+ __func__, hc->id, ch, protocol, oslot_tx, slot_tx,
+ bank_tx, oslot_rx, slot_rx, bank_rx);
+
+ if (oslot_tx >= 0 && slot_tx != oslot_tx) {
+ /* remove from slot */
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG "%s: remove from slot %d (TX)\n",
+ __func__, oslot_tx);
+ if (hc->slot_owner[oslot_tx<<1] == ch) {
+ HFC_outb(hc, R_SLOT, oslot_tx << 1);
+ HFC_outb(hc, A_SL_CFG, 0);
+ HFC_outb(hc, A_CONF, 0);
+ hc->slot_owner[oslot_tx<<1] = -1;
+ } else {
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG
+ "%s: we are not owner of this tx slot "
+ "anymore, channel %d is.\n",
+ __func__, hc->slot_owner[oslot_tx<<1]);
+ }
+ }
+
+ if (oslot_rx >= 0 && slot_rx != oslot_rx) {
+ /* remove from slot */
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG
+ "%s: remove from slot %d (RX)\n",
+ __func__, oslot_rx);
+ if (hc->slot_owner[(oslot_rx << 1) | 1] == ch) {
+ HFC_outb(hc, R_SLOT, (oslot_rx << 1) | V_SL_DIR);
+ HFC_outb(hc, A_SL_CFG, 0);
+ hc->slot_owner[(oslot_rx << 1) | 1] = -1;
+ } else {
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG
+ "%s: we are not owner of this rx slot "
+ "anymore, channel %d is.\n",
+ __func__,
+ hc->slot_owner[(oslot_rx << 1) | 1]);
+ }
+ }
+
+ if (slot_tx < 0) {
+ flow_tx = 0x80; /* FIFO->ST */
+ /* disable pcm slot */
+ hc->chan[ch].slot_tx = -1;
+ hc->chan[ch].bank_tx = 0;
+ } else {
+ /* set pcm slot */
+ if (hc->chan[ch].txpending)
+ flow_tx = 0x80; /* FIFO->ST */
+ else
+ flow_tx = 0xc0; /* PCM->ST */
+ /* put on slot */
+ routing = bank_tx ? 0xc0 : 0x80;
+ if (conf >= 0 || bank_tx > 1)
+ routing = 0x40; /* loop */
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG "%s: put channel %d to slot %d bank"
+ " %d flow %02x routing %02x conf %d (TX)\n",
+ __func__, ch, slot_tx, bank_tx,
+ flow_tx, routing, conf);
+ HFC_outb(hc, R_SLOT, slot_tx << 1);
+ HFC_outb(hc, A_SL_CFG, (ch<<1) | routing);
+ HFC_outb(hc, A_CONF, (conf < 0) ? 0 : (conf | V_CONF_SL));
+ hc->slot_owner[slot_tx << 1] = ch;
+ hc->chan[ch].slot_tx = slot_tx;
+ hc->chan[ch].bank_tx = bank_tx;
+ }
+ if (slot_rx < 0) {
+ /* disable pcm slot */
+ flow_rx = 0x80; /* ST->FIFO */
+ hc->chan[ch].slot_rx = -1;
+ hc->chan[ch].bank_rx = 0;
+ } else {
+ /* set pcm slot */
+ if (hc->chan[ch].txpending)
+ flow_rx = 0x80; /* ST->FIFO */
+ else
+ flow_rx = 0xc0; /* ST->(FIFO,PCM) */
+ /* put on slot */
+ routing = bank_rx?0x80:0xc0; /* reversed */
+ if (conf >= 0 || bank_rx > 1)
+ routing = 0x40; /* loop */
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_DEBUG "%s: put channel %d to slot %d bank"
+ " %d flow %02x routing %02x conf %d (RX)\n",
+ __func__, ch, slot_rx, bank_rx,
+ flow_rx, routing, conf);
+ HFC_outb(hc, R_SLOT, (slot_rx<<1) | V_SL_DIR);
+ HFC_outb(hc, A_SL_CFG, (ch<<1) | V_CH_DIR | routing);
+ hc->slot_owner[(slot_rx<<1)|1] = ch;
+ hc->chan[ch].slot_rx = slot_rx;
+ hc->chan[ch].bank_rx = bank_rx;
+ }
+
+ switch (protocol) {
+ case (ISDN_P_NONE):
+ /* disable TX fifo */
+ HFC_outb(hc, R_FIFO, ch << 1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, flow_tx | 0x00 | V_IFF);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ /* disable RX fifo */
+ HFC_outb(hc, R_FIFO, (ch<<1)|1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, flow_rx | 0x00);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ if (hc->chan[ch].bch && hc->type != 1) {
+ hc->hw.a_st_ctrl0[hc->chan[ch].port] &=
+ ((ch & 0x3) == 0)? ~V_B1_EN: ~V_B2_EN;
+ HFC_outb(hc, R_ST_SEL, hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_CTRL0,
+ hc->hw.a_st_ctrl0[hc->chan[ch].port]);
+ }
+ if (hc->chan[ch].bch) {
+ test_and_clear_bit(FLG_HDLC, &hc->chan[ch].bch->Flags);
+ test_and_clear_bit(FLG_TRANSPARENT,
+ &hc->chan[ch].bch->Flags);
+ }
+ break;
+ case (ISDN_P_B_RAW): /* B-channel */
+
+ if (test_bit(HFC_CHIP_B410P, &hc->chip) &&
+ (hc->chan[ch].slot_rx < 0) &&
+ (hc->chan[ch].slot_tx < 0)) {
+
+ printk(KERN_DEBUG
+ "Setting B-channel %d to echo cancelable "
+ "state on PCM slot %d\n", ch,
+ ((ch / 4) * 8) + ((ch % 4) * 4) + 1);
+ printk(KERN_DEBUG
+ "Enabling pass through for channel\n");
+ vpm_out(hc, ch, ((ch / 4) * 8) +
+ ((ch % 4) * 4) + 1, 0x01);
+ /* rx path */
+ /* S/T -> PCM */
+ HFC_outb(hc, R_FIFO, (ch << 1));
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, 0xc0 | V_HDLC_TRP | V_IFF);
+ HFC_outb(hc, R_SLOT, (((ch / 4) * 8) +
+ ((ch % 4) * 4) + 1) << 1);
+ HFC_outb(hc, A_SL_CFG, 0x80 | (ch << 1));
+
+ /* PCM -> FIFO */
+ HFC_outb(hc, R_FIFO, 0x20 | (ch << 1) | 1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, 0x20 | V_HDLC_TRP | V_IFF);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ HFC_outb(hc, R_SLOT, ((((ch / 4) * 8) +
+ ((ch % 4) * 4) + 1) << 1) | 1);
+ HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1) | 1);
+
+ /* tx path */
+ /* PCM -> S/T */
+ HFC_outb(hc, R_FIFO, (ch << 1) | 1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, 0xc0 | V_HDLC_TRP | V_IFF);
+ HFC_outb(hc, R_SLOT, ((((ch / 4) * 8) +
+ ((ch % 4) * 4)) << 1) | 1);
+ HFC_outb(hc, A_SL_CFG, 0x80 | 0x40 | (ch << 1) | 1);
+
+ /* FIFO -> PCM */
+ HFC_outb(hc, R_FIFO, 0x20 | (ch << 1));
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, 0x20 | V_HDLC_TRP | V_IFF);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ /* tx silence */
+ HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence);
+ HFC_outb(hc, R_SLOT, (((ch / 4) * 8) +
+ ((ch % 4) * 4)) << 1);
+ HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1));
+ } else {
+ /* enable TX fifo */
+ HFC_outb(hc, R_FIFO, ch << 1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, flow_tx | 0x00 |
+ V_HDLC_TRP | V_IFF);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ /* tx silence */
+ HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence);
+ /* enable RX fifo */
+ HFC_outb(hc, R_FIFO, (ch<<1)|1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, flow_rx | 0x00 | V_HDLC_TRP);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ HFC_outb(hc, A_IRQ_MSK, 0);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ }
+ if (hc->type != 1) {
+ hc->hw.a_st_ctrl0[hc->chan[ch].port] |=
+ ((ch & 0x3) == 0) ? V_B1_EN : V_B2_EN;
+ HFC_outb(hc, R_ST_SEL, hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_CTRL0,
+ hc->hw.a_st_ctrl0[hc->chan[ch].port]);
+ }
+ if (hc->chan[ch].bch)
+ test_and_set_bit(FLG_TRANSPARENT,
+ &hc->chan[ch].bch->Flags);
+ break;
+ case (ISDN_P_B_HDLC): /* B-channel */
+ case (ISDN_P_TE_S0): /* D-channel */
+ case (ISDN_P_NT_S0):
+ case (ISDN_P_TE_E1):
+ case (ISDN_P_NT_E1):
+ /* enable TX fifo */
+ HFC_outb(hc, R_FIFO, ch<<1);
+ HFC_wait(hc);
+ if (hc->type == 1 || hc->chan[ch].bch) {
+ /* E1 or B-channel */
+ HFC_outb(hc, A_CON_HDLC, flow_tx | 0x04);
+ HFC_outb(hc, A_SUBCH_CFG, 0);
+ } else {
+ /* D-Channel without HDLC fill flags */
+ HFC_outb(hc, A_CON_HDLC, flow_tx | 0x04 | V_IFF);
+ HFC_outb(hc, A_SUBCH_CFG, 2);
+ }
+ HFC_outb(hc, A_IRQ_MSK, V_IRQ);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ /* enable RX fifo */
+ HFC_outb(hc, R_FIFO, (ch<<1)|1);
+ HFC_wait(hc);
+ HFC_outb(hc, A_CON_HDLC, flow_rx | 0x04);
+ if (hc->type == 1 || hc->chan[ch].bch)
+ HFC_outb(hc, A_SUBCH_CFG, 0); /* full 8 bits */
+ else
+ HFC_outb(hc, A_SUBCH_CFG, 2); /* 2 bits dchannel */
+ HFC_outb(hc, A_IRQ_MSK, V_IRQ);
+ HFC_outb(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait(hc);
+ if (hc->chan[ch].bch) {
+ test_and_set_bit(FLG_HDLC, &hc->chan[ch].bch->Flags);
+ if (hc->type != 1) {
+ hc->hw.a_st_ctrl0[hc->chan[ch].port] |=
+ ((ch&0x3) == 0) ? V_B1_EN : V_B2_EN;
+ HFC_outb(hc, R_ST_SEL, hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_CTRL0,
+ hc->hw.a_st_ctrl0[hc->chan[ch].port]);
+ }
+ }
+ break;
+ default:
+ printk(KERN_DEBUG "%s: protocol not known %x\n",
+ __func__, protocol);
+ hc->chan[ch].protocol = ISDN_P_NONE;
+ return -ENOPROTOOPT;
+ }
+ hc->chan[ch].protocol = protocol;
+ return 0;
+}
+
+
+/*
+ * connect/disconnect PCM
+ */
+
+static void
+hfcmulti_pcm(struct hfc_multi *hc, int ch, int slot_tx, int bank_tx,
+ int slot_rx, int bank_rx)
+{
+ if (slot_rx < 0 || slot_rx < 0 || bank_tx < 0 || bank_rx < 0) {
+ /* disable PCM */
+ mode_hfcmulti(hc, ch, hc->chan[ch].protocol, -1, 0, -1, 0);
+ return;
+ }
+
+ /* enable pcm */
+ mode_hfcmulti(hc, ch, hc->chan[ch].protocol, slot_tx, bank_tx,
+ slot_rx, bank_rx);
+}
+
+/*
+ * set/disable conference
+ */
+
+static void
+hfcmulti_conf(struct hfc_multi *hc, int ch, int num)
+{
+ if (num >= 0 && num <= 7)
+ hc->chan[ch].conf = num;
+ else
+ hc->chan[ch].conf = -1;
+ mode_hfcmulti(hc, ch, hc->chan[ch].protocol, hc->chan[ch].slot_tx,
+ hc->chan[ch].bank_tx, hc->chan[ch].slot_rx,
+ hc->chan[ch].bank_rx);
+}
+
+
+/*
+ * set/disable sample loop
+ */
+
+/* NOTE: this function is experimental and therefore disabled */
+
+/*
+ * Layer 1 callback function
+ */
+static int
+hfcm_l1callback(struct dchannel *dch, u_int cmd)
+{
+ struct hfc_multi *hc = dch->hw;
+ u_long flags;
+
+ switch (cmd) {
+ case INFO3_P8:
+ case INFO3_P10:
+ break;
+ case HW_RESET_REQ:
+ /* start activation */
+ spin_lock_irqsave(&hc->lock, flags);
+ if (hc->type == 1) {
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: HW_RESET_REQ no BRI\n",
+ __func__);
+ } else {
+ HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, V_ST_LD_STA | 3); /* F3 */
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, A_ST_WR_STATE, 3);
+ HFC_outb(hc, A_ST_WR_STATE, 3 | (V_ST_ACT*3));
+ /* activate */
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ l1_event(dch->l1, HW_POWERUP_IND);
+ break;
+ case HW_DEACT_REQ:
+ /* start deactivation */
+ spin_lock_irqsave(&hc->lock, flags);
+ if (hc->type == 1) {
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: HW_DEACT_REQ no BRI\n",
+ __func__);
+ } else {
+ HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, V_ST_ACT*2);
+ /* deactivate */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ hc->syncronized &=
+ ~(1 << hc->chan[dch->slot].port);
+ plxsd_checksync(hc, 0);
+ }
+ }
+ skb_queue_purge(&dch->squeue);
+ if (dch->tx_skb) {
+ dev_kfree_skb(dch->tx_skb);
+ dch->tx_skb = NULL;
+ }
+ dch->tx_idx = 0;
+ if (dch->rx_skb) {
+ dev_kfree_skb(dch->rx_skb);
+ dch->rx_skb = NULL;
+ }
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
+ if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
+ del_timer(&dch->timer);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case HW_POWERUP_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ if (hc->type == 1) {
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: HW_POWERUP_REQ no BRI\n",
+ __func__);
+ } else {
+ HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, 3 | 0x10); /* activate */
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, A_ST_WR_STATE, 3); /* activate */
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case PH_ACTIVATE_IND:
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
+ GFP_ATOMIC);
+ break;
+ case PH_DEACTIVATE_IND:
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
+ GFP_ATOMIC);
+ break;
+ default:
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: unknown command %x\n",
+ __func__, cmd);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Layer2 -> Layer 1 Transfer
+ */
+
+static int
+handle_dmsg(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct hfc_multi *hc = dch->hw;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int ret = -EINVAL;
+ unsigned int id;
+ u_long flags;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ if (skb->len < 1)
+ break;
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = dchannel_senddata(dch, skb);
+ if (ret > 0) { /* direct TX */
+ id = hh->id; /* skb can be freed */
+ hfcmulti_tx(hc, dch->slot);
+ ret = 0;
+ /* start fifo */
+ HFC_outb(hc, R_FIFO, 0);
+ HFC_wait(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
+ } else
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return ret;
+ case PH_ACTIVATE_REQ:
+ if (dch->dev.D.protocol != ISDN_P_TE_S0) {
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = 0;
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: PH_ACTIVATE port %d (0..%d)\n",
+ __func__, hc->chan[dch->slot].port,
+ hc->ports-1);
+ /* start activation */
+ if (hc->type == 1) {
+ ph_state_change(dch);
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: E1 report state %x \n",
+ __func__, dch->state);
+ } else {
+ HFC_outb(hc, R_ST_SEL,
+ hc->chan[dch->slot].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, V_ST_LD_STA | 1);
+ /* G1 */
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, A_ST_WR_STATE, 1);
+ HFC_outb(hc, A_ST_WR_STATE, 1 |
+ (V_ST_ACT*3)); /* activate */
+ dch->state = 1;
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ } else
+ ret = l1_event(dch->l1, hh->prim);
+ break;
+ case PH_DEACTIVATE_REQ:
+ test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
+ if (dch->dev.D.protocol != ISDN_P_TE_S0) {
+ spin_lock_irqsave(&hc->lock, flags);
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: PH_DEACTIVATE port %d (0..%d)\n",
+ __func__, hc->chan[dch->slot].port,
+ hc->ports-1);
+ /* start deactivation */
+ if (hc->type == 1) {
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: PH_DEACTIVATE no BRI\n",
+ __func__);
+ } else {
+ HFC_outb(hc, R_ST_SEL,
+ hc->chan[dch->slot].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, V_ST_ACT * 2);
+ /* deactivate */
+ dch->state = 1;
+ }
+ skb_queue_purge(&dch->squeue);
+ if (dch->tx_skb) {
+ dev_kfree_skb(dch->tx_skb);
+ dch->tx_skb = NULL;
+ }
+ dch->tx_idx = 0;
+ if (dch->rx_skb) {
+ dev_kfree_skb(dch->rx_skb);
+ dch->rx_skb = NULL;
+ }
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
+ if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
+ del_timer(&dch->timer);
+#ifdef FIXME
+ if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
+ dchannel_sched_event(&hc->dch, D_CLEARBUSY);
+#endif
+ ret = 0;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ } else
+ ret = l1_event(dch->l1, hh->prim);
+ break;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+static void
+deactivate_bchannel(struct bchannel *bch)
+{
+ struct hfc_multi *hc = bch->hw;
+ u_long flags;
+
+ spin_lock_irqsave(&hc->lock, flags);
+ if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
+ dev_kfree_skb(bch->next_skb);
+ bch->next_skb = NULL;
+ }
+ if (bch->tx_skb) {
+ dev_kfree_skb(bch->tx_skb);
+ bch->tx_skb = NULL;
+ }
+ bch->tx_idx = 0;
+ if (bch->rx_skb) {
+ dev_kfree_skb(bch->rx_skb);
+ bch->rx_skb = NULL;
+ }
+ hc->chan[bch->slot].coeff_count = 0;
+ test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
+ test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
+ hc->chan[bch->slot].rx_off = 0;
+ hc->chan[bch->slot].conf = -1;
+ mode_hfcmulti(hc, bch->slot, ISDN_P_NONE, -1, 0, -1, 0);
+ spin_unlock_irqrestore(&hc->lock, flags);
+}
+
+static int
+handle_bmsg(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ struct hfc_multi *hc = bch->hw;
+ int ret = -EINVAL;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ unsigned int id;
+ u_long flags;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ if (!skb->len)
+ break;
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = bchannel_senddata(bch, skb);
+ if (ret > 0) { /* direct TX */
+ id = hh->id; /* skb can be freed */
+ hfcmulti_tx(hc, bch->slot);
+ ret = 0;
+ /* start fifo */
+ HFC_outb_nodebug(hc, R_FIFO, 0);
+ HFC_wait_nodebug(hc);
+ if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) {
+ spin_unlock_irqrestore(&hc->lock, flags);
+ queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
+ } else
+ spin_unlock_irqrestore(&hc->lock, flags);
+ } else
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return ret;
+ case PH_ACTIVATE_REQ:
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: PH_ACTIVATE ch %d (0..32)\n",
+ __func__, bch->slot);
+ spin_lock_irqsave(&hc->lock, flags);
+ /* activate B-channel if not already activated */
+ if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) {
+ hc->chan[bch->slot].txpending = 0;
+ ret = mode_hfcmulti(hc, bch->slot,
+ ch->protocol,
+ hc->chan[bch->slot].slot_tx,
+ hc->chan[bch->slot].bank_tx,
+ hc->chan[bch->slot].slot_rx,
+ hc->chan[bch->slot].bank_rx);
+ if (!ret) {
+ if (ch->protocol == ISDN_P_B_RAW && !hc->dtmf
+ && test_bit(HFC_CHIP_DTMF, &hc->chip)) {
+ /* start decoder */
+ hc->dtmf = 1;
+ if (debug & DEBUG_HFCMULTI_DTMF)
+ printk(KERN_DEBUG
+ "%s: start dtmf decoder\n",
+ __func__);
+ HFC_outb(hc, R_DTMF, hc->hw.r_dtmf |
+ V_RST_DTMF);
+ }
+ }
+ } else
+ ret = 0;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (!ret)
+ _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, NULL,
+ GFP_KERNEL);
+ break;
+ case PH_CONTROL_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ switch (hh->id) {
+ case HFC_SPL_LOOP_ON: /* set sample loop */
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: HFC_SPL_LOOP_ON (len = %d)\n",
+ __func__, skb->len);
+ ret = 0;
+ break;
+ case HFC_SPL_LOOP_OFF: /* set silence */
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_SPL_LOOP_OFF\n",
+ __func__);
+ ret = 0;
+ break;
+ default:
+ printk(KERN_ERR
+ "%s: unknown PH_CONTROL_REQ info %x\n",
+ __func__, hh->id);
+ ret = -EINVAL;
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case PH_DEACTIVATE_REQ:
+ deactivate_bchannel(bch); /* locked there */
+ _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, NULL,
+ GFP_KERNEL);
+ ret = 0;
+ break;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+/*
+ * bchannel control function
+ */
+static int
+channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+ struct dsp_features *features =
+ (struct dsp_features *)(*((u_long *)&cq->p1));
+ struct hfc_multi *hc = bch->hw;
+ int slot_tx;
+ int bank_tx;
+ int slot_rx;
+ int bank_rx;
+ int num;
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = MISDN_CTRL_HFC_OP | MISDN_CTRL_HW_FEATURES_OP
+ | MISDN_CTRL_RX_OFF;
+ break;
+ case MISDN_CTRL_RX_OFF: /* turn off / on rx stream */
+ hc->chan[bch->slot].rx_off = !!cq->p1;
+ if (!hc->chan[bch->slot].rx_off) {
+ /* reset fifo on rx on */
+ HFC_outb_nodebug(hc, R_FIFO, (bch->slot << 1) | 1);
+ HFC_wait_nodebug(hc);
+ HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F);
+ HFC_wait_nodebug(hc);
+ }
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: RX_OFF request (nr=%d off=%d)\n",
+ __func__, bch->nr, hc->chan[bch->slot].rx_off);
+ break;
+ case MISDN_CTRL_HW_FEATURES: /* fill features structure */
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HW_FEATURE request\n",
+ __func__);
+ /* create confirm */
+ features->hfc_id = hc->id;
+ if (test_bit(HFC_CHIP_DTMF, &hc->chip))
+ features->hfc_dtmf = 1;
+ features->hfc_loops = 0;
+ if (test_bit(HFC_CHIP_B410P, &hc->chip)) {
+ features->hfc_echocanhw = 1;
+ } else {
+ features->pcm_id = hc->pcm;
+ features->pcm_slots = hc->slots;
+ features->pcm_banks = 2;
+ }
+ break;
+ case MISDN_CTRL_HFC_PCM_CONN: /* connect to pcm timeslot (0..N) */
+ slot_tx = cq->p1 & 0xff;
+ bank_tx = cq->p1 >> 8;
+ slot_rx = cq->p2 & 0xff;
+ bank_rx = cq->p2 >> 8;
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG
+ "%s: HFC_PCM_CONN slot %d bank %d (TX) "
+ "slot %d bank %d (RX)\n",
+ __func__, slot_tx, bank_tx,
+ slot_rx, bank_rx);
+ if (slot_tx < hc->slots && bank_tx <= 2 &&
+ slot_rx < hc->slots && bank_rx <= 2)
+ hfcmulti_pcm(hc, bch->slot,
+ slot_tx, bank_tx, slot_rx, bank_rx);
+ else {
+ printk(KERN_WARNING
+ "%s: HFC_PCM_CONN slot %d bank %d (TX) "
+ "slot %d bank %d (RX) out of range\n",
+ __func__, slot_tx, bank_tx,
+ slot_rx, bank_rx);
+ ret = -EINVAL;
+ }
+ break;
+ case MISDN_CTRL_HFC_PCM_DISC: /* release interface from pcm timeslot */
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_PCM_DISC\n",
+ __func__);
+ hfcmulti_pcm(hc, bch->slot, -1, 0, -1, 0);
+ break;
+ case MISDN_CTRL_HFC_CONF_JOIN: /* join conference (0..7) */
+ num = cq->p1 & 0xff;
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_CONF_JOIN conf %d\n",
+ __func__, num);
+ if (num <= 7)
+ hfcmulti_conf(hc, bch->slot, num);
+ else {
+ printk(KERN_WARNING
+ "%s: HW_CONF_JOIN conf %d out of range\n",
+ __func__, num);
+ ret = -EINVAL;
+ }
+ break;
+ case MISDN_CTRL_HFC_CONF_SPLIT: /* split conference */
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_CONF_SPLIT\n", __func__);
+ hfcmulti_conf(hc, bch->slot, -1);
+ break;
+ case MISDN_CTRL_HFC_ECHOCAN_ON:
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_ECHOCAN_ON\n", __func__);
+ if (test_bit(HFC_CHIP_B410P, &hc->chip))
+ vpm_echocan_on(hc, bch->slot, cq->p1);
+ else
+ ret = -EINVAL;
+ break;
+
+ case MISDN_CTRL_HFC_ECHOCAN_OFF:
+ if (debug & DEBUG_HFCMULTI_MSG)
+ printk(KERN_DEBUG "%s: HFC_ECHOCAN_OFF\n",
+ __func__);
+ if (test_bit(HFC_CHIP_B410P, &hc->chip))
+ vpm_echocan_off(hc, bch->slot);
+ else
+ ret = -EINVAL;
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n",
+ __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int
+hfcm_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ struct hfc_multi *hc = bch->hw;
+ int err = -EINVAL;
+ u_long flags;
+
+ if (bch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n",
+ __func__, cmd, arg);
+ switch (cmd) {
+ case CLOSE_CHANNEL:
+ test_and_clear_bit(FLG_OPEN, &bch->Flags);
+ if (test_bit(FLG_ACTIVE, &bch->Flags))
+ deactivate_bchannel(bch); /* locked there */
+ ch->protocol = ISDN_P_NONE;
+ ch->peer = NULL;
+ module_put(THIS_MODULE);
+ err = 0;
+ break;
+ case CONTROL_CHANNEL:
+ spin_lock_irqsave(&hc->lock, flags);
+ err = channel_bctrl(bch, arg);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown prim(%x)\n",
+ __func__, cmd);
+ }
+ return err;
+}
+
+/*
+ * handle D-channel events
+ *
+ * handle state change event
+ */
+static void
+ph_state_change(struct dchannel *dch)
+{
+ struct hfc_multi *hc = dch->hw;
+ int ch, i;
+
+ if (!dch) {
+ printk(KERN_WARNING "%s: ERROR given dch is NULL\n",
+ __func__);
+ return;
+ }
+ ch = dch->slot;
+
+ if (hc->type == 1) {
+ if (dch->dev.D.protocol == ISDN_P_TE_E1) {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: E1 TE (id=%d) newstate %x\n",
+ __func__, hc->id, dch->state);
+ } else {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: E1 NT (id=%d) newstate %x\n",
+ __func__, hc->id, dch->state);
+ }
+ switch (dch->state) {
+ case (1):
+ if (hc->e1_state != 1) {
+ for (i = 1; i <= 31; i++) {
+ /* reset fifos on e1 activation */
+ HFC_outb_nodebug(hc, R_FIFO, (i << 1) | 1);
+ HFC_wait_nodebug(hc);
+ HFC_outb_nodebug(hc,
+ R_INC_RES_FIFO, V_RES_F);
+ HFC_wait_nodebug(hc);
+ }
+ }
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ break;
+
+ default:
+ if (hc->e1_state != 1)
+ return;
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_DEACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ }
+ hc->e1_state = dch->state;
+ } else {
+ if (dch->dev.D.protocol == ISDN_P_TE_S0) {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG
+ "%s: S/T TE newstate %x\n",
+ __func__, dch->state);
+ switch (dch->state) {
+ case (0):
+ l1_event(dch->l1, HW_RESET_IND);
+ break;
+ case (3):
+ l1_event(dch->l1, HW_DEACT_IND);
+ break;
+ case (5):
+ case (8):
+ l1_event(dch->l1, ANYSIGNAL);
+ break;
+ case (6):
+ l1_event(dch->l1, INFO2);
+ break;
+ case (7):
+ l1_event(dch->l1, INFO4_P8);
+ break;
+ }
+ } else {
+ if (debug & DEBUG_HFCMULTI_STATE)
+ printk(KERN_DEBUG "%s: S/T NT newstate %x\n",
+ __func__, dch->state);
+ switch (dch->state) {
+ case (2):
+ if (hc->chan[ch].nt_timer == 0) {
+ hc->chan[ch].nt_timer = -1;
+ HFC_outb(hc, R_ST_SEL,
+ hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ HFC_outb(hc, A_ST_WR_STATE, 4 |
+ V_ST_LD_STA); /* G4 */
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, A_ST_WR_STATE, 4);
+ dch->state = 4;
+ } else {
+ /* one extra count for the next event */
+ hc->chan[ch].nt_timer =
+ nt_t1_count[poll_timer] + 1;
+ HFC_outb(hc, R_ST_SEL,
+ hc->chan[ch].port);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ /* allow G2 -> G3 transition */
+ HFC_outb(hc, A_ST_WR_STATE, 2 |
+ V_SET_G2_G3);
+ }
+ break;
+ case (1):
+ hc->chan[ch].nt_timer = -1;
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_DEACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ break;
+ case (4):
+ hc->chan[ch].nt_timer = -1;
+ break;
+ case (3):
+ hc->chan[ch].nt_timer = -1;
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ break;
+ }
+ }
+ }
+}
+
+/*
+ * called for card mode init message
+ */
+
+static void
+hfcmulti_initmode(struct dchannel *dch)
+{
+ struct hfc_multi *hc = dch->hw;
+ u_char a_st_wr_state, r_e1_wr_sta;
+ int i, pt;
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: entered\n", __func__);
+
+ if (hc->type == 1) {
+ hc->chan[hc->dslot].slot_tx = -1;
+ hc->chan[hc->dslot].slot_rx = -1;
+ hc->chan[hc->dslot].conf = -1;
+ if (hc->dslot) {
+ mode_hfcmulti(hc, hc->dslot, dch->dev.D.protocol,
+ -1, 0, -1, 0);
+ dch->timer.function = (void *) hfcmulti_dbusy_timer;
+ dch->timer.data = (long) dch;
+ init_timer(&dch->timer);
+ }
+ for (i = 1; i <= 31; i++) {
+ if (i == hc->dslot)
+ continue;
+ hc->chan[i].slot_tx = -1;
+ hc->chan[i].slot_rx = -1;
+ hc->chan[i].conf = -1;
+ mode_hfcmulti(hc, i, ISDN_P_NONE, -1, 0, -1, 0);
+ }
+ /* E1 */
+ if (test_bit(HFC_CFG_REPORT_LOS, &hc->chan[hc->dslot].cfg)) {
+ HFC_outb(hc, R_LOS0, 255); /* 2 ms */
+ HFC_outb(hc, R_LOS1, 255); /* 512 ms */
+ }
+ if (test_bit(HFC_CFG_OPTICAL, &hc->chan[hc->dslot].cfg)) {
+ HFC_outb(hc, R_RX0, 0);
+ hc->hw.r_tx0 = 0 | V_OUT_EN;
+ } else {
+ HFC_outb(hc, R_RX0, 1);
+ hc->hw.r_tx0 = 1 | V_OUT_EN;
+ }
+ hc->hw.r_tx1 = V_ATX | V_NTRI;
+ HFC_outb(hc, R_TX0, hc->hw.r_tx0);
+ HFC_outb(hc, R_TX1, hc->hw.r_tx1);
+ HFC_outb(hc, R_TX_FR0, 0x00);
+ HFC_outb(hc, R_TX_FR1, 0xf8);
+
+ if (test_bit(HFC_CFG_CRC4, &hc->chan[hc->dslot].cfg))
+ HFC_outb(hc, R_TX_FR2, V_TX_MF | V_TX_E | V_NEG_E);
+
+ HFC_outb(hc, R_RX_FR0, V_AUTO_RESYNC | V_AUTO_RECO | 0);
+
+ if (test_bit(HFC_CFG_CRC4, &hc->chan[hc->dslot].cfg))
+ HFC_outb(hc, R_RX_FR1, V_RX_MF | V_RX_MF_SYNC);
+
+ if (dch->dev.D.protocol == ISDN_P_NT_E1) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: E1 port is NT-mode\n",
+ __func__);
+ r_e1_wr_sta = 0; /* G0 */
+ hc->e1_getclock = 0;
+ } else {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: E1 port is TE-mode\n",
+ __func__);
+ r_e1_wr_sta = 0; /* F0 */
+ hc->e1_getclock = 1;
+ }
+ if (test_bit(HFC_CHIP_RX_SYNC, &hc->chip))
+ HFC_outb(hc, R_SYNC_OUT, V_SYNC_E1_RX);
+ else
+ HFC_outb(hc, R_SYNC_OUT, 0);
+ if (test_bit(HFC_CHIP_E1CLOCK_GET, &hc->chip))
+ hc->e1_getclock = 1;
+ if (test_bit(HFC_CHIP_E1CLOCK_PUT, &hc->chip))
+ hc->e1_getclock = 0;
+ if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) {
+ /* SLAVE (clock master) */
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: E1 port is clock master "
+ "(clock from PCM)\n", __func__);
+ HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC | V_PCM_SYNC);
+ } else {
+ if (hc->e1_getclock) {
+ /* MASTER (clock slave) */
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: E1 port is clock slave "
+ "(clock to PCM)\n", __func__);
+ HFC_outb(hc, R_SYNC_CTRL, V_SYNC_OFFS);
+ } else {
+ /* MASTER (clock master) */
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: E1 port is "
+ "clock master "
+ "(clock from QUARTZ)\n",
+ __func__);
+ HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC |
+ V_PCM_SYNC | V_JATT_OFF);
+ HFC_outb(hc, R_SYNC_OUT, 0);
+ }
+ }
+ HFC_outb(hc, R_JATT_ATT, 0x9c); /* undoc register */
+ HFC_outb(hc, R_PWM_MD, V_PWM0_MD);
+ HFC_outb(hc, R_PWM0, 0x50);
+ HFC_outb(hc, R_PWM1, 0xff);
+ /* state machine setup */
+ HFC_outb(hc, R_E1_WR_STA, r_e1_wr_sta | V_E1_LD_STA);
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, R_E1_WR_STA, r_e1_wr_sta);
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ hc->syncronized = 0;
+ plxsd_checksync(hc, 0);
+ }
+ } else {
+ i = dch->slot;
+ hc->chan[i].slot_tx = -1;
+ hc->chan[i].slot_rx = -1;
+ hc->chan[i].conf = -1;
+ mode_hfcmulti(hc, i, dch->dev.D.protocol, -1, 0, -1, 0);
+ dch->timer.function = (void *)hfcmulti_dbusy_timer;
+ dch->timer.data = (long) dch;
+ init_timer(&dch->timer);
+ hc->chan[i - 2].slot_tx = -1;
+ hc->chan[i - 2].slot_rx = -1;
+ hc->chan[i - 2].conf = -1;
+ mode_hfcmulti(hc, i - 2, ISDN_P_NONE, -1, 0, -1, 0);
+ hc->chan[i - 1].slot_tx = -1;
+ hc->chan[i - 1].slot_rx = -1;
+ hc->chan[i - 1].conf = -1;
+ mode_hfcmulti(hc, i - 1, ISDN_P_NONE, -1, 0, -1, 0);
+ /* ST */
+ pt = hc->chan[i].port;
+ /* select interface */
+ HFC_outb(hc, R_ST_SEL, pt);
+ /* undocumented: delay after R_ST_SEL */
+ udelay(1);
+ if (dch->dev.D.protocol == ISDN_P_NT_S0) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: ST port %d is NT-mode\n",
+ __func__, pt);
+ /* clock delay */
+ HFC_outb(hc, A_ST_CLK_DLY, clockdelay_nt);
+ a_st_wr_state = 1; /* G1 */
+ hc->hw.a_st_ctrl0[pt] = V_ST_MD;
+ } else {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: ST port %d is TE-mode\n",
+ __func__, pt);
+ /* clock delay */
+ HFC_outb(hc, A_ST_CLK_DLY, clockdelay_te);
+ a_st_wr_state = 2; /* F2 */
+ hc->hw.a_st_ctrl0[pt] = 0;
+ }
+ if (!test_bit(HFC_CFG_NONCAP_TX, &hc->chan[i].cfg))
+ hc->hw.a_st_ctrl0[pt] |= V_TX_LI;
+ /* line setup */
+ HFC_outb(hc, A_ST_CTRL0, hc->hw.a_st_ctrl0[pt]);
+ /* disable E-channel */
+ if ((dch->dev.D.protocol == ISDN_P_NT_S0) ||
+ test_bit(HFC_CFG_DIS_ECHANNEL, &hc->chan[i].cfg))
+ HFC_outb(hc, A_ST_CTRL1, V_E_IGNO);
+ else
+ HFC_outb(hc, A_ST_CTRL1, 0);
+ /* enable B-channel receive */
+ HFC_outb(hc, A_ST_CTRL2, V_B1_RX_EN | V_B2_RX_EN);
+ /* state machine setup */
+ HFC_outb(hc, A_ST_WR_STATE, a_st_wr_state | V_ST_LD_STA);
+ udelay(6); /* wait at least 5,21us */
+ HFC_outb(hc, A_ST_WR_STATE, a_st_wr_state);
+ hc->hw.r_sci_msk |= 1 << pt;
+ /* state machine interrupts */
+ HFC_outb(hc, R_SCI_MSK, hc->hw.r_sci_msk);
+ /* unset sync on port */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ hc->syncronized &=
+ ~(1 << hc->chan[dch->slot].port);
+ plxsd_checksync(hc, 0);
+ }
+ }
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk("%s: done\n", __func__);
+}
+
+
+static int
+open_dchannel(struct hfc_multi *hc, struct dchannel *dch,
+ struct channel_req *rq)
+{
+ int err = 0;
+ u_long flags;
+
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__,
+ dch->dev.id, __builtin_return_address(0));
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ if ((dch->dev.D.protocol != ISDN_P_NONE) &&
+ (dch->dev.D.protocol != rq->protocol)) {
+ if (debug & DEBUG_HFCMULTI_MODE)
+ printk(KERN_WARNING "%s: change protocol %x to %x\n",
+ __func__, dch->dev.D.protocol, rq->protocol);
+ }
+ if ((dch->dev.D.protocol == ISDN_P_TE_S0)
+ && (rq->protocol != ISDN_P_TE_S0))
+ l1_event(dch->l1, CLOSE_CHANNEL);
+ if (dch->dev.D.protocol != rq->protocol) {
+ if (rq->protocol == ISDN_P_TE_S0) {
+ err = create_l1(dch, hfcm_l1callback);
+ if (err)
+ return err;
+ }
+ dch->dev.D.protocol = rq->protocol;
+ spin_lock_irqsave(&hc->lock, flags);
+ hfcmulti_initmode(dch);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ }
+
+ if (((rq->protocol == ISDN_P_NT_S0) && (dch->state == 3)) ||
+ ((rq->protocol == ISDN_P_TE_S0) && (dch->state == 7)) ||
+ ((rq->protocol == ISDN_P_NT_E1) && (dch->state == 1)) ||
+ ((rq->protocol == ISDN_P_TE_E1) && (dch->state == 1))) {
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY,
+ 0, NULL, GFP_KERNEL);
+ }
+ rq->ch = &dch->dev.D;
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+static int
+open_bchannel(struct hfc_multi *hc, struct dchannel *dch,
+ struct channel_req *rq)
+{
+ struct bchannel *bch;
+ int ch;
+
+ if (!test_bit(rq->adr.channel, &dch->dev.channelmap[0]))
+ return -EINVAL;
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ if (hc->type == 1)
+ ch = rq->adr.channel;
+ else
+ ch = (rq->adr.channel - 1) + (dch->slot - 2);
+ bch = hc->chan[ch].bch;
+ if (!bch) {
+ printk(KERN_ERR "%s:internal error ch %d has no bch\n",
+ __func__, ch);
+ return -EINVAL;
+ }
+ if (test_and_set_bit(FLG_OPEN, &bch->Flags))
+ return -EBUSY; /* b-channel can be only open once */
+ bch->ch.protocol = rq->protocol;
+ hc->chan[ch].rx_off = 0;
+ rq->ch = &bch->ch;
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+/*
+ * device control function
+ */
+static int
+channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = 0;
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n",
+ __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int
+hfcm_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct hfc_multi *hc = dch->hw;
+ struct channel_req *rq;
+ int err = 0;
+ u_long flags;
+
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n",
+ __func__, cmd, arg);
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ rq = arg;
+ switch (rq->protocol) {
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_S0:
+ if (hc->type == 1) {
+ err = -EINVAL;
+ break;
+ }
+ err = open_dchannel(hc, dch, rq); /* locked there */
+ break;
+ case ISDN_P_TE_E1:
+ case ISDN_P_NT_E1:
+ if (hc->type != 1) {
+ err = -EINVAL;
+ break;
+ }
+ err = open_dchannel(hc, dch, rq); /* locked there */
+ break;
+ default:
+ spin_lock_irqsave(&hc->lock, flags);
+ err = open_bchannel(hc, dch, rq);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ }
+ break;
+ case CLOSE_CHANNEL:
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) close from %p\n",
+ __func__, dch->dev.id,
+ __builtin_return_address(0));
+ module_put(THIS_MODULE);
+ break;
+ case CONTROL_CHANNEL:
+ spin_lock_irqsave(&hc->lock, flags);
+ err = channel_dctrl(dch, arg);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ default:
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: unknown command %x\n",
+ __func__, cmd);
+ err = -EINVAL;
+ }
+ return err;
+}
+
+/*
+ * initialize the card
+ */
+
+/*
+ * start timer irq, wait some time and check if we have interrupts.
+ * if not, reset chip and try again.
+ */
+static int
+init_card(struct hfc_multi *hc)
+{
+ int err = -EIO;
+ u_long flags;
+ u_short *plx_acc;
+ u_long plx_flags;
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: entered\n", __func__);
+
+ spin_lock_irqsave(&hc->lock, flags);
+ /* set interrupts but leave global interrupt disabled */
+ hc->hw.r_irq_ctrl = V_FIFO_IRQ;
+ disable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+
+ if (request_irq(hc->pci_dev->irq, hfcmulti_interrupt, IRQF_SHARED,
+ "HFC-multi", hc)) {
+ printk(KERN_WARNING "mISDN: Could not get interrupt %d.\n",
+ hc->pci_dev->irq);
+ return -EIO;
+ }
+ hc->irq = hc->pci_dev->irq;
+
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc = (u_short *)(hc->plx_membase+PLX_INTCSR);
+ writew((PLX_INTCSR_PCIINT_ENABLE | PLX_INTCSR_LINTI1_ENABLE),
+ plx_acc); /* enable PCI & LINT1 irq */
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ }
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: IRQ %d count %d\n",
+ __func__, hc->irq, hc->irqcnt);
+ err = init_chip(hc);
+ if (err)
+ goto error;
+ /*
+ * Finally enable IRQ output
+ * this is only allowed, if an IRQ routine is allready
+ * established for this HFC, so don't do that earlier
+ */
+ spin_lock_irqsave(&hc->lock, flags);
+ enable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ /* printk(KERN_DEBUG "no master irq set!!!\n"); */
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout((100*HZ)/1000); /* Timeout 100ms */
+ /* turn IRQ off until chip is completely initialized */
+ spin_lock_irqsave(&hc->lock, flags);
+ disable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: IRQ %d count %d\n",
+ __func__, hc->irq, hc->irqcnt);
+ if (hc->irqcnt) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: done\n", __func__);
+
+ return 0;
+ }
+ if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) {
+ printk(KERN_INFO "ignoring missing interrupts\n");
+ return 0;
+ }
+
+ printk(KERN_ERR "HFC PCI: IRQ(%d) getting no interrupts during init.\n",
+ hc->irq);
+
+ err = -EIO;
+
+error:
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ spin_lock_irqsave(&plx_lock, plx_flags);
+ plx_acc = (u_short *)(hc->plx_membase+PLX_INTCSR);
+ writew(0x00, plx_acc); /*disable IRQs*/
+ spin_unlock_irqrestore(&plx_lock, plx_flags);
+ }
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: free irq %d\n", __func__, hc->irq);
+ if (hc->irq) {
+ free_irq(hc->irq, hc);
+ hc->irq = 0;
+ }
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: done (err=%d)\n", __func__, err);
+ return err;
+}
+
+/*
+ * find pci device and set it up
+ */
+
+static int
+setup_pci(struct hfc_multi *hc, struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct hm_map *m = (struct hm_map *)ent->driver_data;
+
+ printk(KERN_INFO
+ "HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n",
+ m->vendor_name, m->card_name, m->clock2 ? "double" : "normal");
+
+ hc->pci_dev = pdev;
+ if (m->clock2)
+ test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip);
+
+ if (ent->device == 0xB410) {
+ test_and_set_bit(HFC_CHIP_B410P, &hc->chip);
+ test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip);
+ test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip);
+ hc->slots = 32;
+ }
+
+ if (hc->pci_dev->irq <= 0) {
+ printk(KERN_WARNING "HFC-multi: No IRQ for PCI card found.\n");
+ return -EIO;
+ }
+ if (pci_enable_device(hc->pci_dev)) {
+ printk(KERN_WARNING "HFC-multi: Error enabling PCI card.\n");
+ return -EIO;
+ }
+ hc->leds = m->leds;
+ hc->ledstate = 0xAFFEAFFE;
+ hc->opticalsupport = m->opticalsupport;
+
+ /* set memory access methods */
+ if (m->io_mode) /* use mode from card config */
+ hc->io_mode = m->io_mode;
+ switch (hc->io_mode) {
+ case HFC_IO_MODE_PLXSD:
+ test_and_set_bit(HFC_CHIP_PLXSD, &hc->chip);
+ hc->slots = 128; /* required */
+ /* fall through */
+ case HFC_IO_MODE_PCIMEM:
+ hc->HFC_outb = HFC_outb_pcimem;
+ hc->HFC_inb = HFC_inb_pcimem;
+ hc->HFC_inw = HFC_inw_pcimem;
+ hc->HFC_wait = HFC_wait_pcimem;
+ hc->read_fifo = read_fifo_pcimem;
+ hc->write_fifo = write_fifo_pcimem;
+ break;
+ case HFC_IO_MODE_REGIO:
+ hc->HFC_outb = HFC_outb_regio;
+ hc->HFC_inb = HFC_inb_regio;
+ hc->HFC_inw = HFC_inw_regio;
+ hc->HFC_wait = HFC_wait_regio;
+ hc->read_fifo = read_fifo_regio;
+ hc->write_fifo = write_fifo_regio;
+ break;
+ default:
+ printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+ hc->HFC_outb_nodebug = hc->HFC_outb;
+ hc->HFC_inb_nodebug = hc->HFC_inb;
+ hc->HFC_inw_nodebug = hc->HFC_inw;
+ hc->HFC_wait_nodebug = hc->HFC_wait;
+#ifdef HFC_REGISTER_DEBUG
+ hc->HFC_outb = HFC_outb_debug;
+ hc->HFC_inb = HFC_inb_debug;
+ hc->HFC_inw = HFC_inw_debug;
+ hc->HFC_wait = HFC_wait_debug;
+#endif
+ hc->pci_iobase = 0;
+ hc->pci_membase = NULL;
+ hc->plx_membase = NULL;
+
+ switch (hc->io_mode) {
+ case HFC_IO_MODE_PLXSD:
+ hc->plx_origmembase = hc->pci_dev->resource[0].start;
+ /* MEMBASE 1 is PLX PCI Bridge */
+
+ if (!hc->plx_origmembase) {
+ printk(KERN_WARNING
+ "HFC-multi: No IO-Memory for PCI PLX bridge found\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ hc->plx_membase = ioremap(hc->plx_origmembase, 0x80);
+ if (!hc->plx_membase) {
+ printk(KERN_WARNING
+ "HFC-multi: failed to remap plx address space. "
+ "(internal error)\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+ printk(KERN_INFO
+ "HFC-multi: plx_membase:%#lx plx_origmembase:%#lx\n",
+ (u_long)hc->plx_membase, hc->plx_origmembase);
+
+ hc->pci_origmembase = hc->pci_dev->resource[2].start;
+ /* MEMBASE 1 is PLX PCI Bridge */
+ if (!hc->pci_origmembase) {
+ printk(KERN_WARNING
+ "HFC-multi: No IO-Memory for PCI card found\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ hc->pci_membase = ioremap(hc->pci_origmembase, 0x400);
+ if (!hc->pci_membase) {
+ printk(KERN_WARNING "HFC-multi: failed to remap io "
+ "address space. (internal error)\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ printk(KERN_INFO
+ "card %d: defined at MEMBASE %#lx (%#lx) IRQ %d HZ %d "
+ "leds-type %d\n",
+ hc->id, (u_long)hc->pci_membase, hc->pci_origmembase,
+ hc->pci_dev->irq, HZ, hc->leds);
+ pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_MEMIO);
+ break;
+ case HFC_IO_MODE_PCIMEM:
+ hc->pci_origmembase = hc->pci_dev->resource[1].start;
+ if (!hc->pci_origmembase) {
+ printk(KERN_WARNING
+ "HFC-multi: No IO-Memory for PCI card found\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ hc->pci_membase = ioremap(hc->pci_origmembase, 256);
+ if (!hc->pci_membase) {
+ printk(KERN_WARNING
+ "HFC-multi: failed to remap io address space. "
+ "(internal error)\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+ printk(KERN_INFO "card %d: defined at MEMBASE %#lx (%#lx) IRQ %d "
+ "HZ %d leds-type %d\n", hc->id, (u_long)hc->pci_membase,
+ hc->pci_origmembase, hc->pci_dev->irq, HZ, hc->leds);
+ pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_MEMIO);
+ break;
+ case HFC_IO_MODE_REGIO:
+ hc->pci_iobase = (u_int) hc->pci_dev->resource[0].start;
+ if (!hc->pci_iobase) {
+ printk(KERN_WARNING
+ "HFC-multi: No IO for PCI card found\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ if (!request_region(hc->pci_iobase, 8, "hfcmulti")) {
+ printk(KERN_WARNING "HFC-multi: failed to request "
+ "address space at 0x%08lx (internal error)\n",
+ hc->pci_iobase);
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ printk(KERN_INFO
+ "%s %s: defined at IOBASE %#x IRQ %d HZ %d leds-type %d\n",
+ m->vendor_name, m->card_name, (u_int) hc->pci_iobase,
+ hc->pci_dev->irq, HZ, hc->leds);
+ pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_REGIO);
+ break;
+ default:
+ printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n");
+ pci_disable_device(hc->pci_dev);
+ return -EIO;
+ }
+
+ pci_set_drvdata(hc->pci_dev, hc);
+
+ /* At this point the needed PCI config is done */
+ /* fifos are still not enabled */
+ return 0;
+}
+
+
+/*
+ * remove port
+ */
+
+static void
+release_port(struct hfc_multi *hc, struct dchannel *dch)
+{
+ int pt, ci, i = 0;
+ u_long flags;
+ struct bchannel *pb;
+
+ ci = dch->slot;
+ pt = hc->chan[ci].port;
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: entered for port %d\n",
+ __func__, pt + 1);
+
+ if (pt >= hc->ports) {
+ printk(KERN_WARNING "%s: ERROR port out of range (%d).\n",
+ __func__, pt + 1);
+ return;
+ }
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: releasing port=%d\n",
+ __func__, pt + 1);
+
+ if (dch->dev.D.protocol == ISDN_P_TE_S0)
+ l1_event(dch->l1, CLOSE_CHANNEL);
+
+ hc->chan[ci].dch = NULL;
+
+ if (hc->created[pt]) {
+ hc->created[pt] = 0;
+ mISDN_unregister_device(&dch->dev);
+ }
+
+ spin_lock_irqsave(&hc->lock, flags);
+
+ if (dch->timer.function) {
+ del_timer(&dch->timer);
+ dch->timer.function = NULL;
+ }
+
+ if (hc->type == 1) { /* E1 */
+ /* remove sync */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ hc->syncronized = 0;
+ plxsd_checksync(hc, 1);
+ }
+ /* free channels */
+ for (i = 0; i <= 31; i++) {
+ if (hc->chan[i].bch) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: free port %d channel %d\n",
+ __func__, hc->chan[i].port+1, i);
+ pb = hc->chan[i].bch;
+ hc->chan[i].bch = NULL;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ mISDN_freebchannel(pb);
+ kfree(pb);
+ kfree(hc->chan[i].coeff);
+ spin_lock_irqsave(&hc->lock, flags);
+ }
+ }
+ } else {
+ /* remove sync */
+ if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) {
+ hc->syncronized &=
+ ~(1 << hc->chan[ci].port);
+ plxsd_checksync(hc, 1);
+ }
+ /* free channels */
+ if (hc->chan[ci - 2].bch) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: free port %d channel %d\n",
+ __func__, hc->chan[ci - 2].port+1,
+ ci - 2);
+ pb = hc->chan[ci - 2].bch;
+ hc->chan[ci - 2].bch = NULL;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ mISDN_freebchannel(pb);
+ kfree(pb);
+ kfree(hc->chan[ci - 2].coeff);
+ spin_lock_irqsave(&hc->lock, flags);
+ }
+ if (hc->chan[ci - 1].bch) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: free port %d channel %d\n",
+ __func__, hc->chan[ci - 1].port+1,
+ ci - 1);
+ pb = hc->chan[ci - 1].bch;
+ hc->chan[ci - 1].bch = NULL;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ mISDN_freebchannel(pb);
+ kfree(pb);
+ kfree(hc->chan[ci - 1].coeff);
+ spin_lock_irqsave(&hc->lock, flags);
+ }
+ }
+
+ spin_unlock_irqrestore(&hc->lock, flags);
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: free port %d channel D\n", __func__, pt);
+ mISDN_freedchannel(dch);
+ kfree(dch);
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: done!\n", __func__);
+}
+
+static void
+release_card(struct hfc_multi *hc)
+{
+ u_long flags;
+ int ch;
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: release card (%d) entered\n",
+ __func__, hc->id);
+
+ spin_lock_irqsave(&hc->lock, flags);
+ disable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+
+ udelay(1000);
+
+ /* dimm leds */
+ if (hc->leds)
+ hfcmulti_leds(hc);
+
+ /* disable D-channels & B-channels */
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: disable all channels (d and b)\n",
+ __func__);
+ for (ch = 0; ch <= 31; ch++) {
+ if (hc->chan[ch].dch)
+ release_port(hc, hc->chan[ch].dch);
+ }
+
+ /* release hardware & irq */
+ if (hc->irq) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: free irq %d\n",
+ __func__, hc->irq);
+ free_irq(hc->irq, hc);
+ hc->irq = 0;
+
+ }
+ release_io_hfcmulti(hc);
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: remove instance from list\n",
+ __func__);
+ list_del(&hc->list);
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: delete instance\n", __func__);
+ if (hc == syncmaster)
+ syncmaster = NULL;
+ kfree(hc);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_WARNING "%s: card successfully removed\n",
+ __func__);
+}
+
+static int
+init_e1_port(struct hfc_multi *hc, struct hm_map *m)
+{
+ struct dchannel *dch;
+ struct bchannel *bch;
+ int ch, ret = 0;
+ char name[MISDN_MAX_IDLEN];
+
+ dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL);
+ if (!dch)
+ return -ENOMEM;
+ dch->debug = debug;
+ mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, ph_state_change);
+ dch->hw = hc;
+ dch->dev.Dprotocols = (1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1);
+ dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
+ (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
+ dch->dev.D.send = handle_dmsg;
+ dch->dev.D.ctrl = hfcm_dctrl;
+ dch->dev.nrbchan = (hc->dslot)?30:31;
+ dch->slot = hc->dslot;
+ hc->chan[hc->dslot].dch = dch;
+ hc->chan[hc->dslot].port = 0;
+ hc->chan[hc->dslot].nt_timer = -1;
+ for (ch = 1; ch <= 31; ch++) {
+ if (ch == hc->dslot) /* skip dchannel */
+ continue;
+ bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL);
+ if (!bch) {
+ printk(KERN_ERR "%s: no memory for bchannel\n",
+ __func__);
+ ret = -ENOMEM;
+ goto free_chan;
+ }
+ hc->chan[ch].coeff = kzalloc(512, GFP_KERNEL);
+ if (!hc->chan[ch].coeff) {
+ printk(KERN_ERR "%s: no memory for coeffs\n",
+ __func__);
+ ret = -ENOMEM;
+ goto free_chan;
+ }
+ bch->nr = ch;
+ bch->slot = ch;
+ bch->debug = debug;
+ mISDN_initbchannel(bch, MAX_DATA_MEM);
+ bch->hw = hc;
+ bch->ch.send = handle_bmsg;
+ bch->ch.ctrl = hfcm_bctrl;
+ bch->ch.nr = ch;
+ list_add(&bch->ch.list, &dch->dev.bchannels);
+ hc->chan[ch].bch = bch;
+ hc->chan[ch].port = 0;
+ test_and_set_bit(bch->nr, &dch->dev.channelmap[0]);
+ }
+ /* set optical line type */
+ if (port[Port_cnt] & 0x001) {
+ if (!m->opticalsupport) {
+ printk(KERN_INFO
+ "This board has no optical "
+ "support\n");
+ } else {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PORT set optical "
+ "interfacs: card(%d) "
+ "port(%d)\n",
+ __func__,
+ HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_OPTICAL,
+ &hc->chan[hc->dslot].cfg);
+ }
+ }
+ /* set LOS report */
+ if (port[Port_cnt] & 0x004) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT set "
+ "LOS report: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_REPORT_LOS,
+ &hc->chan[hc->dslot].cfg);
+ }
+ /* set AIS report */
+ if (port[Port_cnt] & 0x008) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT set "
+ "AIS report: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_REPORT_AIS,
+ &hc->chan[hc->dslot].cfg);
+ }
+ /* set SLIP report */
+ if (port[Port_cnt] & 0x010) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PORT set SLIP report: "
+ "card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_REPORT_SLIP,
+ &hc->chan[hc->dslot].cfg);
+ }
+ /* set RDI report */
+ if (port[Port_cnt] & 0x020) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PORT set RDI report: "
+ "card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_REPORT_RDI,
+ &hc->chan[hc->dslot].cfg);
+ }
+ /* set CRC-4 Mode */
+ if (!(port[Port_cnt] & 0x100)) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT turn on CRC4 report:"
+ " card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CFG_CRC4,
+ &hc->chan[hc->dslot].cfg);
+ } else {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT turn off CRC4"
+ " report: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ }
+ /* set forced clock */
+ if (port[Port_cnt] & 0x0200) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT force getting clock from "
+ "E1: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CHIP_E1CLOCK_GET, &hc->chip);
+ } else
+ if (port[Port_cnt] & 0x0400) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT force putting clock to "
+ "E1: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CHIP_E1CLOCK_PUT, &hc->chip);
+ }
+ /* set JATT PLL */
+ if (port[Port_cnt] & 0x0800) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: PORT disable JATT PLL on "
+ "E1: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, 1);
+ test_and_set_bit(HFC_CHIP_RX_SYNC, &hc->chip);
+ }
+ /* set elastic jitter buffer */
+ if (port[Port_cnt] & 0x3000) {
+ hc->chan[hc->dslot].jitter = (port[Port_cnt]>>12) & 0x3;
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PORT set elastic "
+ "buffer to %d: card(%d) port(%d)\n",
+ __func__, hc->chan[hc->dslot].jitter,
+ HFC_cnt + 1, 1);
+ } else
+ hc->chan[hc->dslot].jitter = 2; /* default */
+ snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-e1.%d", HFC_cnt + 1);
+ ret = mISDN_register_device(&dch->dev, name);
+ if (ret)
+ goto free_chan;
+ hc->created[0] = 1;
+ return ret;
+free_chan:
+ release_port(hc, dch);
+ return ret;
+}
+
+static int
+init_multi_port(struct hfc_multi *hc, int pt)
+{
+ struct dchannel *dch;
+ struct bchannel *bch;
+ int ch, i, ret = 0;
+ char name[MISDN_MAX_IDLEN];
+
+ dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL);
+ if (!dch)
+ return -ENOMEM;
+ dch->debug = debug;
+ mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, ph_state_change);
+ dch->hw = hc;
+ dch->dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
+ dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
+ (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
+ dch->dev.D.send = handle_dmsg;
+ dch->dev.D.ctrl = hfcm_dctrl;
+ dch->dev.nrbchan = 2;
+ i = pt << 2;
+ dch->slot = i + 2;
+ hc->chan[i + 2].dch = dch;
+ hc->chan[i + 2].port = pt;
+ hc->chan[i + 2].nt_timer = -1;
+ for (ch = 0; ch < dch->dev.nrbchan; ch++) {
+ bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL);
+ if (!bch) {
+ printk(KERN_ERR "%s: no memory for bchannel\n",
+ __func__);
+ ret = -ENOMEM;
+ goto free_chan;
+ }
+ hc->chan[i + ch].coeff = kzalloc(512, GFP_KERNEL);
+ if (!hc->chan[i + ch].coeff) {
+ printk(KERN_ERR "%s: no memory for coeffs\n",
+ __func__);
+ ret = -ENOMEM;
+ goto free_chan;
+ }
+ bch->nr = ch + 1;
+ bch->slot = i + ch;
+ bch->debug = debug;
+ mISDN_initbchannel(bch, MAX_DATA_MEM);
+ bch->hw = hc;
+ bch->ch.send = handle_bmsg;
+ bch->ch.ctrl = hfcm_bctrl;
+ bch->ch.nr = ch + 1;
+ list_add(&bch->ch.list, &dch->dev.bchannels);
+ hc->chan[i + ch].bch = bch;
+ hc->chan[i + ch].port = pt;
+ test_and_set_bit(bch->nr, &dch->dev.channelmap[0]);
+ }
+ /* set master clock */
+ if (port[Port_cnt] & 0x001) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PROTOCOL set master clock: "
+ "card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, pt + 1);
+ if (dch->dev.D.protocol != ISDN_P_TE_S0) {
+ printk(KERN_ERR "Error: Master clock "
+ "for port(%d) of card(%d) is only"
+ " possible with TE-mode\n",
+ pt + 1, HFC_cnt + 1);
+ ret = -EINVAL;
+ goto free_chan;
+ }
+ if (hc->masterclk >= 0) {
+ printk(KERN_ERR "Error: Master clock "
+ "for port(%d) of card(%d) already "
+ "defined for port(%d)\n",
+ pt + 1, HFC_cnt + 1, hc->masterclk+1);
+ ret = -EINVAL;
+ goto free_chan;
+ }
+ hc->masterclk = pt;
+ }
+ /* set transmitter line to non capacitive */
+ if (port[Port_cnt] & 0x002) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PROTOCOL set non capacitive "
+ "transmitter: card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, pt + 1);
+ test_and_set_bit(HFC_CFG_NONCAP_TX,
+ &hc->chan[i + 2].cfg);
+ }
+ /* disable E-channel */
+ if (port[Port_cnt] & 0x004) {
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: PROTOCOL disable E-channel: "
+ "card(%d) port(%d)\n",
+ __func__, HFC_cnt + 1, pt + 1);
+ test_and_set_bit(HFC_CFG_DIS_ECHANNEL,
+ &hc->chan[i + 2].cfg);
+ }
+ snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-%ds.%d/%d",
+ hc->type, HFC_cnt + 1, pt + 1);
+ ret = mISDN_register_device(&dch->dev, name);
+ if (ret)
+ goto free_chan;
+ hc->created[pt] = 1;
+ return ret;
+free_chan:
+ release_port(hc, dch);
+ return ret;
+}
+
+static int
+hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct hm_map *m = (struct hm_map *)ent->driver_data;
+ int ret_err = 0;
+ int pt;
+ struct hfc_multi *hc;
+ u_long flags;
+ u_char dips = 0, pmj = 0; /* dip settings, port mode Jumpers */
+
+ if (HFC_cnt >= MAX_CARDS) {
+ printk(KERN_ERR "too many cards (max=%d).\n",
+ MAX_CARDS);
+ return -EINVAL;
+ }
+ if ((type[HFC_cnt] & 0xff) && (type[HFC_cnt] & 0xff) != m->type) {
+ printk(KERN_WARNING "HFC-MULTI: Card '%s:%s' type %d found but "
+ "type[%d] %d was supplied as module parameter\n",
+ m->vendor_name, m->card_name, m->type, HFC_cnt,
+ type[HFC_cnt] & 0xff);
+ printk(KERN_WARNING "HFC-MULTI: Load module without parameters "
+ "first, to see cards and their types.");
+ return -EINVAL;
+ }
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: Registering %s:%s chip type %d (0x%x)\n",
+ __func__, m->vendor_name, m->card_name, m->type,
+ type[HFC_cnt]);
+
+ /* allocate card+fifo structure */
+ hc = kzalloc(sizeof(struct hfc_multi), GFP_KERNEL);
+ if (!hc) {
+ printk(KERN_ERR "No kmem for HFC-Multi card\n");
+ return -ENOMEM;
+ }
+ spin_lock_init(&hc->lock);
+ hc->mtyp = m;
+ hc->type = m->type;
+ hc->ports = m->ports;
+ hc->id = HFC_cnt;
+ hc->pcm = pcm[HFC_cnt];
+ hc->io_mode = iomode[HFC_cnt];
+ if (dslot[HFC_cnt] < 0) {
+ hc->dslot = 0;
+ printk(KERN_INFO "HFC-E1 card has disabled D-channel, but "
+ "31 B-channels\n");
+ } if (dslot[HFC_cnt] > 0 && dslot[HFC_cnt] < 32) {
+ hc->dslot = dslot[HFC_cnt];
+ printk(KERN_INFO "HFC-E1 card has alternating D-channel on "
+ "time slot %d\n", dslot[HFC_cnt]);
+ } else
+ hc->dslot = 16;
+
+ /* set chip specific features */
+ hc->masterclk = -1;
+ if (type[HFC_cnt] & 0x100) {
+ test_and_set_bit(HFC_CHIP_ULAW, &hc->chip);
+ silence = 0xff; /* ulaw silence */
+ } else
+ silence = 0x2a; /* alaw silence */
+ if (!(type[HFC_cnt] & 0x200))
+ test_and_set_bit(HFC_CHIP_DTMF, &hc->chip);
+
+ if (type[HFC_cnt] & 0x800)
+ test_and_set_bit(HFC_CHIP_PCM_SLAVE, &hc->chip);
+ if (type[HFC_cnt] & 0x1000) {
+ test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip);
+ test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip);
+ }
+ if (type[HFC_cnt] & 0x4000)
+ test_and_set_bit(HFC_CHIP_EXRAM_128, &hc->chip);
+ if (type[HFC_cnt] & 0x8000)
+ test_and_set_bit(HFC_CHIP_EXRAM_512, &hc->chip);
+ hc->slots = 32;
+ if (type[HFC_cnt] & 0x10000)
+ hc->slots = 64;
+ if (type[HFC_cnt] & 0x20000)
+ hc->slots = 128;
+ if (type[HFC_cnt] & 0x80000) {
+ test_and_set_bit(HFC_CHIP_WATCHDOG, &hc->chip);
+ hc->wdcount = 0;
+ hc->wdbyte = V_GPIO_OUT2;
+ printk(KERN_NOTICE "Watchdog enabled\n");
+ }
+
+ /* setup pci, hc->slots may change due to PLXSD */
+ ret_err = setup_pci(hc, pdev, ent);
+ if (ret_err) {
+ if (hc == syncmaster)
+ syncmaster = NULL;
+ kfree(hc);
+ return ret_err;
+ }
+
+ /* crate channels */
+ for (pt = 0; pt < hc->ports; pt++) {
+ if (Port_cnt >= MAX_PORTS) {
+ printk(KERN_ERR "too many ports (max=%d).\n",
+ MAX_PORTS);
+ ret_err = -EINVAL;
+ goto free_card;
+ }
+ if (hc->type == 1)
+ ret_err = init_e1_port(hc, m);
+ else
+ ret_err = init_multi_port(hc, pt);
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG
+ "%s: Registering D-channel, card(%d) port(%d)"
+ "result %d\n",
+ __func__, HFC_cnt + 1, pt, ret_err);
+
+ if (ret_err) {
+ while (pt) { /* release already registered ports */
+ pt--;
+ release_port(hc, hc->chan[(pt << 2) + 2].dch);
+ }
+ goto free_card;
+ }
+ Port_cnt++;
+ }
+
+ /* disp switches */
+ switch (m->dip_type) {
+ case DIP_4S:
+ /*
+ * get DIP Setting for beroNet 1S/2S/4S cards
+ * check if Port Jumper config matches
+ * module param 'protocol'
+ * DIP Setting: (collect GPIO 13/14/15 (R_GPIO_IN1) +
+ * GPI 19/23 (R_GPI_IN2))
+ */
+ dips = ((~HFC_inb(hc, R_GPIO_IN1) & 0xE0) >> 5) |
+ ((~HFC_inb(hc, R_GPI_IN2) & 0x80) >> 3) |
+ (~HFC_inb(hc, R_GPI_IN2) & 0x08);
+
+ /* Port mode (TE/NT) jumpers */
+ pmj = ((HFC_inb(hc, R_GPI_IN3) >> 4) & 0xf);
+
+ if (test_bit(HFC_CHIP_B410P, &hc->chip))
+ pmj = ~pmj & 0xf;
+
+ printk(KERN_INFO "%s: %s DIPs(0x%x) jumpers(0x%x)\n",
+ m->vendor_name, m->card_name, dips, pmj);
+ break;
+ case DIP_8S:
+ /*
+ * get DIP Setting for beroNet 8S0+ cards
+ *
+ * enable PCI auxbridge function
+ */
+ HFC_outb(hc, R_BRG_PCM_CFG, 1 | V_PCM_CLK);
+ /* prepare access to auxport */
+ outw(0x4000, hc->pci_iobase + 4);
+ /*
+ * some dummy reads are required to
+ * read valid DIP switch data
+ */
+ dips = inb(hc->pci_iobase);
+ dips = inb(hc->pci_iobase);
+ dips = inb(hc->pci_iobase);
+ dips = ~inb(hc->pci_iobase) & 0x3F;
+ outw(0x0, hc->pci_iobase + 4);
+ /* disable PCI auxbridge function */
+ HFC_outb(hc, R_BRG_PCM_CFG, V_PCM_CLK);
+ printk(KERN_INFO "%s: %s DIPs(0x%x)\n",
+ m->vendor_name, m->card_name, dips);
+ break;
+ case DIP_E1:
+ /*
+ * get DIP Setting for beroNet E1 cards
+ * DIP Setting: collect GPI 4/5/6/7 (R_GPI_IN0)
+ */
+ dips = (~HFC_inb(hc, R_GPI_IN0) & 0xF0)>>4;
+ printk(KERN_INFO "%s: %s DIPs(0x%x)\n",
+ m->vendor_name, m->card_name, dips);
+ break;
+ }
+
+ /* add to list */
+ spin_lock_irqsave(&HFClock, flags);
+ list_add_tail(&hc->list, &HFClist);
+ spin_unlock_irqrestore(&HFClock, flags);
+
+ /* initialize hardware */
+ ret_err = init_card(hc);
+ if (ret_err) {
+ printk(KERN_ERR "init card returns %d\n", ret_err);
+ release_card(hc);
+ return ret_err;
+ }
+
+ /* start IRQ and return */
+ spin_lock_irqsave(&hc->lock, flags);
+ enable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return 0;
+
+free_card:
+ release_io_hfcmulti(hc);
+ if (hc == syncmaster)
+ syncmaster = NULL;
+ kfree(hc);
+ return ret_err;
+}
+
+static void __devexit hfc_remove_pci(struct pci_dev *pdev)
+{
+ struct hfc_multi *card = pci_get_drvdata(pdev);
+ u_long flags;
+
+ if (debug)
+ printk(KERN_INFO "removing hfc_multi card vendor:%x "
+ "device:%x subvendor:%x subdevice:%x\n",
+ pdev->vendor, pdev->device,
+ pdev->subsystem_vendor, pdev->subsystem_device);
+
+ if (card) {
+ spin_lock_irqsave(&HFClock, flags);
+ release_card(card);
+ spin_unlock_irqrestore(&HFClock, flags);
+ } else {
+ if (debug)
+ printk(KERN_WARNING "%s: drvdata allready removed\n",
+ __func__);
+ }
+}
+
+#define VENDOR_CCD "Cologne Chip AG"
+#define VENDOR_BN "beroNet GmbH"
+#define VENDOR_DIG "Digium Inc."
+#define VENDOR_JH "Junghanns.NET GmbH"
+#define VENDOR_PRIM "PrimuX"
+
+static const struct hm_map hfcm_map[] = {
+/*0*/ {VENDOR_BN, "HFC-1S Card (mini PCI)", 4, 1, 1, 3, 0, DIP_4S, 0},
+/*1*/ {VENDOR_BN, "HFC-2S Card", 4, 2, 1, 3, 0, DIP_4S},
+/*2*/ {VENDOR_BN, "HFC-2S Card (mini PCI)", 4, 2, 1, 3, 0, DIP_4S, 0},
+/*3*/ {VENDOR_BN, "HFC-4S Card", 4, 4, 1, 2, 0, DIP_4S, 0},
+/*4*/ {VENDOR_BN, "HFC-4S Card (mini PCI)", 4, 4, 1, 2, 0, 0, 0},
+/*5*/ {VENDOR_CCD, "HFC-4S Eval (old)", 4, 4, 0, 0, 0, 0, 0},
+/*6*/ {VENDOR_CCD, "HFC-4S IOB4ST", 4, 4, 1, 2, 0, 0, 0},
+/*7*/ {VENDOR_CCD, "HFC-4S", 4, 4, 1, 2, 0, 0, 0},
+/*8*/ {VENDOR_DIG, "HFC-4S Card", 4, 4, 0, 2, 0, 0, HFC_IO_MODE_REGIO},
+/*9*/ {VENDOR_CCD, "HFC-4S Swyx 4xS0 SX2 QuadBri", 4, 4, 1, 2, 0, 0, 0},
+/*10*/ {VENDOR_JH, "HFC-4S (junghanns 2.0)", 4, 4, 1, 2, 0, 0, 0},
+/*11*/ {VENDOR_PRIM, "HFC-2S Primux Card", 4, 2, 0, 0, 0, 0, 0},
+
+/*12*/ {VENDOR_BN, "HFC-8S Card", 8, 8, 1, 0, 0, 0, 0},
+/*13*/ {VENDOR_BN, "HFC-8S Card (+)", 8, 8, 1, 8, 0, DIP_8S,
+ HFC_IO_MODE_REGIO},
+/*14*/ {VENDOR_CCD, "HFC-8S Eval (old)", 8, 8, 0, 0, 0, 0, 0},
+/*15*/ {VENDOR_CCD, "HFC-8S IOB4ST Recording", 8, 8, 1, 0, 0, 0, 0},
+
+/*16*/ {VENDOR_CCD, "HFC-8S IOB8ST", 8, 8, 1, 0, 0, 0, 0},
+/*17*/ {VENDOR_CCD, "HFC-8S", 8, 8, 1, 0, 0, 0, 0},
+/*18*/ {VENDOR_CCD, "HFC-8S", 8, 8, 1, 0, 0, 0, 0},
+
+/*19*/ {VENDOR_BN, "HFC-E1 Card", 1, 1, 0, 1, 0, DIP_E1, 0},
+/*20*/ {VENDOR_BN, "HFC-E1 Card (mini PCI)", 1, 1, 0, 1, 0, 0, 0},
+/*21*/ {VENDOR_BN, "HFC-E1+ Card (Dual)", 1, 1, 0, 1, 0, DIP_E1, 0},
+/*22*/ {VENDOR_BN, "HFC-E1 Card (Dual)", 1, 1, 0, 1, 0, DIP_E1, 0},
+
+/*23*/ {VENDOR_CCD, "HFC-E1 Eval (old)", 1, 1, 0, 0, 0, 0, 0},
+/*24*/ {VENDOR_CCD, "HFC-E1 IOB1E1", 1, 1, 0, 1, 0, 0, 0},
+/*25*/ {VENDOR_CCD, "HFC-E1", 1, 1, 0, 1, 0, 0, 0},
+
+/*26*/ {VENDOR_CCD, "HFC-4S Speech Design", 4, 4, 0, 0, 0, 0,
+ HFC_IO_MODE_PLXSD},
+/*27*/ {VENDOR_CCD, "HFC-E1 Speech Design", 1, 1, 0, 0, 0, 0,
+ HFC_IO_MODE_PLXSD},
+/*28*/ {VENDOR_CCD, "HFC-4S OpenVox", 4, 4, 1, 0, 0, 0, 0},
+/*29*/ {VENDOR_CCD, "HFC-2S OpenVox", 4, 2, 1, 0, 0, 0, 0},
+/*30*/ {VENDOR_CCD, "HFC-8S OpenVox", 8, 8, 1, 0, 0, 0, 0},
+};
+
+#undef H
+#define H(x) ((unsigned long)&hfcm_map[x])
+static struct pci_device_id hfmultipci_ids[] __devinitdata = {
+
+ /* Cards with HFC-4S Chip */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN1SM, 0, 0, H(0)}, /* BN1S mini PCI */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN2S, 0, 0, H(1)}, /* BN2S */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN2SM, 0, 0, H(2)}, /* BN2S mini PCI */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN4S, 0, 0, H(3)}, /* BN4S */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN4SM, 0, 0, H(4)}, /* BN4S mini PCI */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_DEVICE_ID_CCD_HFC4S, 0, 0, H(5)}, /* Old Eval */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_IOB4ST, 0, 0, H(6)}, /* IOB4ST */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_HFC4S, 0, 0, H(7)}, /* 4S */
+ { PCI_VENDOR_ID_DIGIUM, PCI_DEVICE_ID_DIGIUM_HFC4S,
+ PCI_VENDOR_ID_DIGIUM, PCI_DEVICE_ID_DIGIUM_HFC4S, 0, 0, H(8)},
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_SWYX4S, 0, 0, H(9)}, /* 4S Swyx */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_JH4S20, 0, 0, H(10)},
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_PMX2S, 0, 0, H(11)}, /* Primux */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_OV4S, 0, 0, H(28)}, /* OpenVox 4 */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_OV2S, 0, 0, H(29)}, /* OpenVox 2 */
+
+ /* Cards with HFC-8S Chip */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN8S, 0, 0, H(12)}, /* BN8S */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BN8SP, 0, 0, H(13)}, /* BN8S+ */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_DEVICE_ID_CCD_HFC8S, 0, 0, H(14)}, /* old Eval */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_IOB8STR, 0, 0, H(15)},
+ /* IOB8ST Recording */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_IOB8ST, 0, 0, H(16)}, /* IOB8ST */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_IOB8ST_1, 0, 0, H(17)}, /* IOB8ST */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_HFC8S, 0, 0, H(18)}, /* 8S */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_OV8S, 0, 0, H(30)}, /* OpenVox 8 */
+
+
+ /* Cards with HFC-E1 Chip */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BNE1, 0, 0, H(19)}, /* BNE1 */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BNE1M, 0, 0, H(20)}, /* BNE1 mini PCI */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BNE1DP, 0, 0, H(21)}, /* BNE1 + (Dual) */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_BNE1D, 0, 0, H(22)}, /* BNE1 (Dual) */
+
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_DEVICE_ID_CCD_HFCE1, 0, 0, H(23)}, /* Old Eval */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_IOB1E1, 0, 0, H(24)}, /* IOB1E1 */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_HFCE1, 0, 0, H(25)}, /* E1 */
+
+ { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_SPD4S, 0, 0, H(26)}, /* PLX PCI Bridge */
+ { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030, PCI_VENDOR_ID_CCD,
+ PCI_SUBDEVICE_ID_CCD_SPDE1, 0, 0, H(27)}, /* PLX PCI Bridge */
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0, 0},
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0, 0},
+ { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_ANY_ID, PCI_ANY_ID,
+ 0, 0, 0},
+ {0, }
+};
+#undef H
+
+MODULE_DEVICE_TABLE(pci, hfmultipci_ids);
+
+static int
+hfcmulti_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct hm_map *m = (struct hm_map *)ent->driver_data;
+ int ret;
+
+ if (m == NULL) {
+ if (ent->vendor == PCI_VENDOR_ID_CCD)
+ if (ent->device == PCI_DEVICE_ID_CCD_HFC4S ||
+ ent->device == PCI_DEVICE_ID_CCD_HFC8S ||
+ ent->device == PCI_DEVICE_ID_CCD_HFCE1)
+ printk(KERN_ERR
+ "unknown HFC multiport controller "
+ "(vendor:%x device:%x subvendor:%x "
+ "subdevice:%x) Please contact the "
+ "driver maintainer for support.\n",
+ ent->vendor, ent->device,
+ ent->subvendor, ent->subdevice);
+ return -ENODEV;
+ }
+ ret = hfcmulti_init(pdev, ent);
+ if (ret)
+ return ret;
+ HFC_cnt++;
+ printk(KERN_INFO "%d devices registered\n", HFC_cnt);
+ return 0;
+}
+
+static struct pci_driver hfcmultipci_driver = {
+ .name = "hfc_multi",
+ .probe = hfcmulti_probe,
+ .remove = __devexit_p(hfc_remove_pci),
+ .id_table = hfmultipci_ids,
+};
+
+static void __exit
+HFCmulti_cleanup(void)
+{
+ struct hfc_multi *card, *next;
+
+ /* unload interrupt function symbol */
+ if (hfc_interrupt)
+ symbol_put(ztdummy_extern_interrupt);
+ if (register_interrupt)
+ symbol_put(ztdummy_register_interrupt);
+ if (unregister_interrupt) {
+ if (interrupt_registered) {
+ interrupt_registered = 0;
+ unregister_interrupt();
+ }
+ symbol_put(ztdummy_unregister_interrupt);
+ }
+
+ list_for_each_entry_safe(card, next, &HFClist, list)
+ release_card(card);
+ /* get rid of all devices of this driver */
+ pci_unregister_driver(&hfcmultipci_driver);
+}
+
+static int __init
+HFCmulti_init(void)
+{
+ int err;
+
+#ifdef IRQ_DEBUG
+ printk(KERN_ERR "%s: IRQ_DEBUG IS ENABLED!\n", __func__);
+#endif
+
+ spin_lock_init(&HFClock);
+ spin_lock_init(&plx_lock);
+
+ if (debug & DEBUG_HFCMULTI_INIT)
+ printk(KERN_DEBUG "%s: init entered\n", __func__);
+
+#ifdef __BIG_ENDIAN
+#error "not running on big endian machines now"
+#endif
+ hfc_interrupt = symbol_get(ztdummy_extern_interrupt);
+ register_interrupt = symbol_get(ztdummy_register_interrupt);
+ unregister_interrupt = symbol_get(ztdummy_unregister_interrupt);
+ printk(KERN_INFO "mISDN: HFC-multi driver %s\n",
+ hfcmulti_revision);
+
+ switch (poll) {
+ case 0:
+ poll_timer = 6;
+ poll = 128;
+ break;
+ /*
+ * wenn dieses break nochmal verschwindet,
+ * gibt es heisse ohren :-)
+ * "without the break you will get hot ears ???"
+ */
+ case 8:
+ poll_timer = 2;
+ break;
+ case 16:
+ poll_timer = 3;
+ break;
+ case 32:
+ poll_timer = 4;
+ break;
+ case 64:
+ poll_timer = 5;
+ break;
+ case 128:
+ poll_timer = 6;
+ break;
+ case 256:
+ poll_timer = 7;
+ break;
+ default:
+ printk(KERN_ERR
+ "%s: Wrong poll value (%d).\n", __func__, poll);
+ err = -EINVAL;
+ return err;
+
+ }
+
+ err = pci_register_driver(&hfcmultipci_driver);
+ if (err < 0) {
+ printk(KERN_ERR "error registering pci driver: %x\n", err);
+ if (hfc_interrupt)
+ symbol_put(ztdummy_extern_interrupt);
+ if (register_interrupt)
+ symbol_put(ztdummy_register_interrupt);
+ if (unregister_interrupt) {
+ if (interrupt_registered) {
+ interrupt_registered = 0;
+ unregister_interrupt();
+ }
+ symbol_put(ztdummy_unregister_interrupt);
+ }
+ return err;
+ }
+ return 0;
+}
+
+
+module_init(HFCmulti_init);
+module_exit(HFCmulti_cleanup);
--- /dev/null
+/*
+ *
+ * hfcpci.c low level driver for CCD's hfc-pci based cards
+ *
+ * Author Werner Cornelius (werner@isdn4linux.de)
+ * based on existing driver for CCD hfc ISA cards
+ * type approval valid for HFC-S PCI A based card
+ *
+ * Copyright 1999 by Werner Cornelius (werner@isdn-development.de)
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/mISDNhw.h>
+
+#include "hfc_pci.h"
+
+static const char *hfcpci_revision = "2.0";
+
+#define MAX_CARDS 8
+static int HFC_cnt;
+static uint debug;
+
+MODULE_AUTHOR("Karsten Keil");
+MODULE_LICENSE("GPL");
+module_param(debug, uint, 0);
+
+static LIST_HEAD(HFClist);
+DEFINE_RWLOCK(HFClock);
+
+enum {
+ HFC_CCD_2BD0,
+ HFC_CCD_B000,
+ HFC_CCD_B006,
+ HFC_CCD_B007,
+ HFC_CCD_B008,
+ HFC_CCD_B009,
+ HFC_CCD_B00A,
+ HFC_CCD_B00B,
+ HFC_CCD_B00C,
+ HFC_CCD_B100,
+ HFC_CCD_B700,
+ HFC_CCD_B701,
+ HFC_ASUS_0675,
+ HFC_BERKOM_A1T,
+ HFC_BERKOM_TCONCEPT,
+ HFC_ANIGMA_MC145575,
+ HFC_ZOLTRIX_2BD0,
+ HFC_DIGI_DF_M_IOM2_E,
+ HFC_DIGI_DF_M_E,
+ HFC_DIGI_DF_M_IOM2_A,
+ HFC_DIGI_DF_M_A,
+ HFC_ABOCOM_2BD1,
+ HFC_SITECOM_DC105V2,
+};
+
+struct hfcPCI_hw {
+ unsigned char cirm;
+ unsigned char ctmt;
+ unsigned char clkdel;
+ unsigned char states;
+ unsigned char conn;
+ unsigned char mst_m;
+ unsigned char int_m1;
+ unsigned char int_m2;
+ unsigned char sctrl;
+ unsigned char sctrl_r;
+ unsigned char sctrl_e;
+ unsigned char trm;
+ unsigned char fifo_en;
+ unsigned char bswapped;
+ unsigned char protocol;
+ int nt_timer;
+ unsigned char *pci_io; /* start of PCI IO memory */
+ dma_addr_t dmahandle;
+ void *fifos; /* FIFO memory */
+ int last_bfifo_cnt[2];
+ /* marker saving last b-fifo frame count */
+ struct timer_list timer;
+};
+
+#define HFC_CFG_MASTER 1
+#define HFC_CFG_SLAVE 2
+#define HFC_CFG_PCM 3
+#define HFC_CFG_2HFC 4
+#define HFC_CFG_SLAVEHFC 5
+#define HFC_CFG_NEG_F0 6
+#define HFC_CFG_SW_DD_DU 7
+
+#define FLG_HFC_TIMER_T1 16
+#define FLG_HFC_TIMER_T3 17
+
+#define NT_T1_COUNT 1120 /* number of 3.125ms interrupts (3.5s) */
+#define NT_T3_COUNT 31 /* number of 3.125ms interrupts (97 ms) */
+#define CLKDEL_TE 0x0e /* CLKDEL in TE mode */
+#define CLKDEL_NT 0x6c /* CLKDEL in NT mode */
+
+
+struct hfc_pci {
+ struct list_head list;
+ u_char subtype;
+ u_char chanlimit;
+ u_char initdone;
+ u_long cfg;
+ u_int irq;
+ u_int irqcnt;
+ struct pci_dev *pdev;
+ struct hfcPCI_hw hw;
+ spinlock_t lock; /* card lock */
+ struct dchannel dch;
+ struct bchannel bch[2];
+};
+
+/* Interface functions */
+static void
+enable_hwirq(struct hfc_pci *hc)
+{
+ hc->hw.int_m2 |= HFCPCI_IRQ_ENABLE;
+ Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
+}
+
+static void
+disable_hwirq(struct hfc_pci *hc)
+{
+ hc->hw.int_m2 &= ~((u_char)HFCPCI_IRQ_ENABLE);
+ Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2);
+}
+
+/*
+ * free hardware resources used by driver
+ */
+static void
+release_io_hfcpci(struct hfc_pci *hc)
+{
+ /* disable memory mapped ports + busmaster */
+ pci_write_config_word(hc->pdev, PCI_COMMAND, 0);
+ del_timer(&hc->hw.timer);
+ pci_free_consistent(hc->pdev, 0x8000, hc->hw.fifos, hc->hw.dmahandle);
+ iounmap((void *)hc->hw.pci_io);
+}
+
+/*
+ * set mode (NT or TE)
+ */
+static void
+hfcpci_setmode(struct hfc_pci *hc)
+{
+ if (hc->hw.protocol == ISDN_P_NT_S0) {
+ hc->hw.clkdel = CLKDEL_NT; /* ST-Bit delay for NT-Mode */
+ hc->hw.sctrl |= SCTRL_MODE_NT; /* NT-MODE */
+ hc->hw.states = 1; /* G1 */
+ } else {
+ hc->hw.clkdel = CLKDEL_TE; /* ST-Bit delay for TE-Mode */
+ hc->hw.sctrl &= ~SCTRL_MODE_NT; /* TE-MODE */
+ hc->hw.states = 2; /* F2 */
+ }
+ Write_hfc(hc, HFCPCI_CLKDEL, hc->hw.clkdel);
+ Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | hc->hw.states);
+ udelay(10);
+ Write_hfc(hc, HFCPCI_STATES, hc->hw.states | 0x40); /* Deactivate */
+ Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl);
+}
+
+/*
+ * function called to reset the HFC PCI chip. A complete software reset of chip
+ * and fifos is done.
+ */
+static void
+reset_hfcpci(struct hfc_pci *hc)
+{
+ u_char val;
+ int cnt = 0;
+
+ printk(KERN_DEBUG "reset_hfcpci: entered\n");
+ val = Read_hfc(hc, HFCPCI_CHIP_ID);
+ printk(KERN_INFO "HFC_PCI: resetting HFC ChipId(%x)\n", val);
+ /* enable memory mapped ports, disable busmaster */
+ pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO);
+ disable_hwirq(hc);
+ /* enable memory ports + busmaster */
+ pci_write_config_word(hc->pdev, PCI_COMMAND,
+ PCI_ENA_MEMIO + PCI_ENA_MASTER);
+ val = Read_hfc(hc, HFCPCI_STATUS);
+ printk(KERN_DEBUG "HFC-PCI status(%x) before reset\n", val);
+ hc->hw.cirm = HFCPCI_RESET; /* Reset On */
+ Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ mdelay(10); /* Timeout 10ms */
+ hc->hw.cirm = 0; /* Reset Off */
+ Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
+ val = Read_hfc(hc, HFCPCI_STATUS);
+ printk(KERN_DEBUG "HFC-PCI status(%x) after reset\n", val);
+ while (cnt < 50000) { /* max 50000 us */
+ udelay(5);
+ cnt += 5;
+ val = Read_hfc(hc, HFCPCI_STATUS);
+ if (!(val & 2))
+ break;
+ }
+ printk(KERN_DEBUG "HFC-PCI status(%x) after %dus\n", val, cnt);
+
+ hc->hw.fifo_en = 0x30; /* only D fifos enabled */
+
+ hc->hw.bswapped = 0; /* no exchange */
+ hc->hw.ctmt = HFCPCI_TIM3_125 | HFCPCI_AUTO_TIMER;
+ hc->hw.trm = HFCPCI_BTRANS_THRESMASK; /* no echo connect , threshold */
+ hc->hw.sctrl = 0x40; /* set tx_lo mode, error in datasheet ! */
+ hc->hw.sctrl_r = 0;
+ hc->hw.sctrl_e = HFCPCI_AUTO_AWAKE; /* S/T Auto awake */
+ hc->hw.mst_m = 0;
+ if (test_bit(HFC_CFG_MASTER, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_MASTER; /* HFC Master Mode */
+ if (test_bit(HFC_CFG_NEG_F0, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_F0_NEGATIV;
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
+ Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e);
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
+
+ hc->hw.int_m1 = HFCPCI_INTS_DTRANS | HFCPCI_INTS_DREC |
+ HFCPCI_INTS_L1STATE | HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+
+ /* Clear already pending ints */
+ if (Read_hfc(hc, HFCPCI_INT_S1));
+
+ /* set NT/TE mode */
+ hfcpci_setmode(hc);
+
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
+
+ /*
+ * Init GCI/IOM2 in master mode
+ * Slots 0 and 1 are set for B-chan 1 and 2
+ * D- and monitor/CI channel are not enabled
+ * STIO1 is used as output for data, B1+B2 from ST->IOM+HFC
+ * STIO2 is used as data input, B1+B2 from IOM->ST
+ * ST B-channel send disabled -> continous 1s
+ * The IOM slots are always enabled
+ */
+ if (test_bit(HFC_CFG_PCM, &hc->cfg)) {
+ /* set data flow directions: connect B1,B2: HFC to/from PCM */
+ hc->hw.conn = 0x09;
+ } else {
+ hc->hw.conn = 0x36; /* set data flow directions */
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) {
+ Write_hfc(hc, HFCPCI_B1_SSL, 0xC0);
+ Write_hfc(hc, HFCPCI_B2_SSL, 0xC1);
+ Write_hfc(hc, HFCPCI_B1_RSL, 0xC0);
+ Write_hfc(hc, HFCPCI_B2_RSL, 0xC1);
+ } else {
+ Write_hfc(hc, HFCPCI_B1_SSL, 0x80);
+ Write_hfc(hc, HFCPCI_B2_SSL, 0x81);
+ Write_hfc(hc, HFCPCI_B1_RSL, 0x80);
+ Write_hfc(hc, HFCPCI_B2_RSL, 0x81);
+ }
+ }
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ val = Read_hfc(hc, HFCPCI_INT_S2);
+}
+
+/*
+ * Timer function called when kernel timer expires
+ */
+static void
+hfcpci_Timer(struct hfc_pci *hc)
+{
+ hc->hw.timer.expires = jiffies + 75;
+ /* WD RESET */
+/*
+ * WriteReg(hc, HFCD_DATA, HFCD_CTMT, hc->hw.ctmt | 0x80);
+ * add_timer(&hc->hw.timer);
+ */
+}
+
+
+/*
+ * select a b-channel entry matching and active
+ */
+static struct bchannel *
+Sel_BCS(struct hfc_pci *hc, int channel)
+{
+ if (test_bit(FLG_ACTIVE, &hc->bch[0].Flags) &&
+ (hc->bch[0].nr & channel))
+ return &hc->bch[0];
+ else if (test_bit(FLG_ACTIVE, &hc->bch[1].Flags) &&
+ (hc->bch[1].nr & channel))
+ return &hc->bch[1];
+ else
+ return NULL;
+}
+
+/*
+ * clear the desired B-channel rx fifo
+ */
+static void
+hfcpci_clear_fifo_rx(struct hfc_pci *hc, int fifo)
+{
+ u_char fifo_state;
+ struct bzfifo *bzr;
+
+ if (fifo) {
+ bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2;
+ fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2RX;
+ } else {
+ bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1;
+ fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1RX;
+ }
+ if (fifo_state)
+ hc->hw.fifo_en ^= fifo_state;
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ hc->hw.last_bfifo_cnt[fifo] = 0;
+ bzr->f1 = MAX_B_FRAMES;
+ bzr->f2 = bzr->f1; /* init F pointers to remain constant */
+ bzr->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1);
+ bzr->za[MAX_B_FRAMES].z2 = cpu_to_le16(
+ le16_to_cpu(bzr->za[MAX_B_FRAMES].z1));
+ if (fifo_state)
+ hc->hw.fifo_en |= fifo_state;
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+}
+
+/*
+ * clear the desired B-channel tx fifo
+ */
+static void hfcpci_clear_fifo_tx(struct hfc_pci *hc, int fifo)
+{
+ u_char fifo_state;
+ struct bzfifo *bzt;
+
+ if (fifo) {
+ bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2;
+ fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2TX;
+ } else {
+ bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1;
+ fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1TX;
+ }
+ if (fifo_state)
+ hc->hw.fifo_en ^= fifo_state;
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) "
+ "z1(%x) z2(%x) state(%x)\n",
+ fifo, bzt->f1, bzt->f2,
+ le16_to_cpu(bzt->za[MAX_B_FRAMES].z1),
+ le16_to_cpu(bzt->za[MAX_B_FRAMES].z2),
+ fifo_state);
+ bzt->f2 = MAX_B_FRAMES;
+ bzt->f1 = bzt->f2; /* init F pointers to remain constant */
+ bzt->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1);
+ bzt->za[MAX_B_FRAMES].z2 = cpu_to_le16(
+ le16_to_cpu(bzt->za[MAX_B_FRAMES].z1 - 1));
+ if (fifo_state)
+ hc->hw.fifo_en |= fifo_state;
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) z1(%x) z2(%x)\n",
+ fifo, bzt->f1, bzt->f2,
+ le16_to_cpu(bzt->za[MAX_B_FRAMES].z1),
+ le16_to_cpu(bzt->za[MAX_B_FRAMES].z2));
+}
+
+/*
+ * read a complete B-frame out of the buffer
+ */
+static void
+hfcpci_empty_bfifo(struct bchannel *bch, struct bzfifo *bz,
+ u_char *bdata, int count)
+{
+ u_char *ptr, *ptr1, new_f2;
+ int total, maxlen, new_z2;
+ struct zt *zp;
+
+ if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO))
+ printk(KERN_DEBUG "hfcpci_empty_fifo\n");
+ zp = &bz->za[bz->f2]; /* point to Z-Regs */
+ new_z2 = le16_to_cpu(zp->z2) + count; /* new position in fifo */
+ if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL))
+ new_z2 -= B_FIFO_SIZE; /* buffer wrap */
+ new_f2 = (bz->f2 + 1) & MAX_B_FRAMES;
+ if ((count > MAX_DATA_SIZE + 3) || (count < 4) ||
+ (*(bdata + (le16_to_cpu(zp->z1) - B_SUB_VAL)))) {
+ if (bch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "hfcpci_empty_fifo: incoming packet "
+ "invalid length %d or crc\n", count);
+#ifdef ERROR_STATISTIC
+ bch->err_inv++;
+#endif
+ bz->za[new_f2].z2 = cpu_to_le16(new_z2);
+ bz->f2 = new_f2; /* next buffer */
+ } else {
+ bch->rx_skb = mI_alloc_skb(count - 3, GFP_ATOMIC);
+ if (!bch->rx_skb) {
+ printk(KERN_WARNING "HFCPCI: receive out of memory\n");
+ return;
+ }
+ total = count;
+ count -= 3;
+ ptr = skb_put(bch->rx_skb, count);
+
+ if (le16_to_cpu(zp->z2) + count <= B_FIFO_SIZE + B_SUB_VAL)
+ maxlen = count; /* complete transfer */
+ else
+ maxlen = B_FIFO_SIZE + B_SUB_VAL -
+ le16_to_cpu(zp->z2); /* maximum */
+
+ ptr1 = bdata + (le16_to_cpu(zp->z2) - B_SUB_VAL);
+ /* start of data */
+ memcpy(ptr, ptr1, maxlen); /* copy data */
+ count -= maxlen;
+
+ if (count) { /* rest remaining */
+ ptr += maxlen;
+ ptr1 = bdata; /* start of buffer */
+ memcpy(ptr, ptr1, count); /* rest */
+ }
+ bz->za[new_f2].z2 = cpu_to_le16(new_z2);
+ bz->f2 = new_f2; /* next buffer */
+ recv_Bchannel(bch);
+ }
+}
+
+/*
+ * D-channel receive procedure
+ */
+static int
+receive_dmsg(struct hfc_pci *hc)
+{
+ struct dchannel *dch = &hc->dch;
+ int maxlen;
+ int rcnt, total;
+ int count = 5;
+ u_char *ptr, *ptr1;
+ struct dfifo *df;
+ struct zt *zp;
+
+ df = &((union fifo_area *)(hc->hw.fifos))->d_chan.d_rx;
+ while (((df->f1 & D_FREG_MASK) != (df->f2 & D_FREG_MASK)) && count--) {
+ zp = &df->za[df->f2 & D_FREG_MASK];
+ rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2);
+ if (rcnt < 0)
+ rcnt += D_FIFO_SIZE;
+ rcnt++;
+ if (dch->debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG
+ "hfcpci recd f1(%d) f2(%d) z1(%x) z2(%x) cnt(%d)\n",
+ df->f1, df->f2,
+ le16_to_cpu(zp->z1),
+ le16_to_cpu(zp->z2),
+ rcnt);
+
+ if ((rcnt > MAX_DFRAME_LEN + 3) || (rcnt < 4) ||
+ (df->data[le16_to_cpu(zp->z1)])) {
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG
+ "empty_fifo hfcpci paket inv. len "
+ "%d or crc %d\n",
+ rcnt,
+ df->data[le16_to_cpu(zp->z1)]);
+#ifdef ERROR_STATISTIC
+ cs->err_rx++;
+#endif
+ df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |
+ (MAX_D_FRAMES + 1); /* next buffer */
+ df->za[df->f2 & D_FREG_MASK].z2 =
+ cpu_to_le16((zp->z2 + rcnt) & (D_FIFO_SIZE - 1));
+ } else {
+ dch->rx_skb = mI_alloc_skb(rcnt - 3, GFP_ATOMIC);
+ if (!dch->rx_skb) {
+ printk(KERN_WARNING
+ "HFC-PCI: D receive out of memory\n");
+ break;
+ }
+ total = rcnt;
+ rcnt -= 3;
+ ptr = skb_put(dch->rx_skb, rcnt);
+
+ if (le16_to_cpu(zp->z2) + rcnt <= D_FIFO_SIZE)
+ maxlen = rcnt; /* complete transfer */
+ else
+ maxlen = D_FIFO_SIZE - le16_to_cpu(zp->z2);
+ /* maximum */
+
+ ptr1 = df->data + le16_to_cpu(zp->z2);
+ /* start of data */
+ memcpy(ptr, ptr1, maxlen); /* copy data */
+ rcnt -= maxlen;
+
+ if (rcnt) { /* rest remaining */
+ ptr += maxlen;
+ ptr1 = df->data; /* start of buffer */
+ memcpy(ptr, ptr1, rcnt); /* rest */
+ }
+ df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |
+ (MAX_D_FRAMES + 1); /* next buffer */
+ df->za[df->f2 & D_FREG_MASK].z2 = cpu_to_le16((
+ le16_to_cpu(zp->z2) + total) & (D_FIFO_SIZE - 1));
+ recv_Dchannel(dch);
+ }
+ }
+ return 1;
+}
+
+/*
+ * check for transparent receive data and read max one threshold size if avail
+ */
+int
+hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata)
+{
+ unsigned short *z1r, *z2r;
+ int new_z2, fcnt, maxlen;
+ u_char *ptr, *ptr1;
+
+ z1r = &bz->za[MAX_B_FRAMES].z1; /* pointer to z reg */
+ z2r = z1r + 1;
+
+ fcnt = le16_to_cpu(*z1r) - le16_to_cpu(*z2r);
+ if (!fcnt)
+ return 0; /* no data avail */
+
+ if (fcnt <= 0)
+ fcnt += B_FIFO_SIZE; /* bytes actually buffered */
+ if (fcnt > HFCPCI_BTRANS_THRESHOLD)
+ fcnt = HFCPCI_BTRANS_THRESHOLD; /* limit size */
+
+ new_z2 = le16_to_cpu(*z2r) + fcnt; /* new position in fifo */
+ if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL))
+ new_z2 -= B_FIFO_SIZE; /* buffer wrap */
+
+ bch->rx_skb = mI_alloc_skb(fcnt, GFP_ATOMIC);
+ if (bch->rx_skb) {
+ ptr = skb_put(bch->rx_skb, fcnt);
+ if (le16_to_cpu(*z2r) + fcnt <= B_FIFO_SIZE + B_SUB_VAL)
+ maxlen = fcnt; /* complete transfer */
+ else
+ maxlen = B_FIFO_SIZE + B_SUB_VAL - le16_to_cpu(*z2r);
+ /* maximum */
+
+ ptr1 = bdata + (le16_to_cpu(*z2r) - B_SUB_VAL);
+ /* start of data */
+ memcpy(ptr, ptr1, maxlen); /* copy data */
+ fcnt -= maxlen;
+
+ if (fcnt) { /* rest remaining */
+ ptr += maxlen;
+ ptr1 = bdata; /* start of buffer */
+ memcpy(ptr, ptr1, fcnt); /* rest */
+ }
+ recv_Bchannel(bch);
+ } else
+ printk(KERN_WARNING "HFCPCI: receive out of memory\n");
+
+ *z2r = cpu_to_le16(new_z2); /* new position */
+ return 1;
+}
+
+/*
+ * B-channel main receive routine
+ */
+void
+main_rec_hfcpci(struct bchannel *bch)
+{
+ struct hfc_pci *hc = bch->hw;
+ int rcnt, real_fifo;
+ int receive, count = 5;
+ struct bzfifo *bz;
+ u_char *bdata;
+ struct zt *zp;
+
+
+ if ((bch->nr & 2) && (!hc->hw.bswapped)) {
+ bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2;
+ bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b2;
+ real_fifo = 1;
+ } else {
+ bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1;
+ bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b1;
+ real_fifo = 0;
+ }
+Begin:
+ count--;
+ if (bz->f1 != bz->f2) {
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG "hfcpci rec ch(%x) f1(%d) f2(%d)\n",
+ bch->nr, bz->f1, bz->f2);
+ zp = &bz->za[bz->f2];
+
+ rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2);
+ if (rcnt < 0)
+ rcnt += B_FIFO_SIZE;
+ rcnt++;
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "hfcpci rec ch(%x) z1(%x) z2(%x) cnt(%d)\n",
+ bch->nr, le16_to_cpu(zp->z1),
+ le16_to_cpu(zp->z2), rcnt);
+ hfcpci_empty_bfifo(bch, bz, bdata, rcnt);
+ rcnt = bz->f1 - bz->f2;
+ if (rcnt < 0)
+ rcnt += MAX_B_FRAMES + 1;
+ if (hc->hw.last_bfifo_cnt[real_fifo] > rcnt + 1) {
+ rcnt = 0;
+ hfcpci_clear_fifo_rx(hc, real_fifo);
+ }
+ hc->hw.last_bfifo_cnt[real_fifo] = rcnt;
+ if (rcnt > 1)
+ receive = 1;
+ else
+ receive = 0;
+ } else if (test_bit(FLG_TRANSPARENT, &bch->Flags))
+ receive = hfcpci_empty_fifo_trans(bch, bz, bdata);
+ else
+ receive = 0;
+ if (count && receive)
+ goto Begin;
+
+}
+
+/*
+ * D-channel send routine
+ */
+static void
+hfcpci_fill_dfifo(struct hfc_pci *hc)
+{
+ struct dchannel *dch = &hc->dch;
+ int fcnt;
+ int count, new_z1, maxlen;
+ struct dfifo *df;
+ u_char *src, *dst, new_f1;
+
+ if ((dch->debug & DEBUG_HW_DCHANNEL) && !(dch->debug & DEBUG_HW_DFIFO))
+ printk(KERN_DEBUG "%s\n", __func__);
+
+ if (!dch->tx_skb)
+ return;
+ count = dch->tx_skb->len - dch->tx_idx;
+ if (count <= 0)
+ return;
+ df = &((union fifo_area *) (hc->hw.fifos))->d_chan.d_tx;
+
+ if (dch->debug & DEBUG_HW_DFIFO)
+ printk(KERN_DEBUG "%s:f1(%d) f2(%d) z1(f1)(%x)\n", __func__,
+ df->f1, df->f2,
+ le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1));
+ fcnt = df->f1 - df->f2; /* frame count actually buffered */
+ if (fcnt < 0)
+ fcnt += (MAX_D_FRAMES + 1); /* if wrap around */
+ if (fcnt > (MAX_D_FRAMES - 1)) {
+ if (dch->debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG
+ "hfcpci_fill_Dfifo more as 14 frames\n");
+#ifdef ERROR_STATISTIC
+ cs->err_tx++;
+#endif
+ return;
+ }
+ /* now determine free bytes in FIFO buffer */
+ maxlen = le16_to_cpu(df->za[df->f2 & D_FREG_MASK].z2) -
+ le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) - 1;
+ if (maxlen <= 0)
+ maxlen += D_FIFO_SIZE; /* count now contains available bytes */
+
+ if (dch->debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG "hfcpci_fill_Dfifo count(%d/%d)\n",
+ count, maxlen);
+ if (count > maxlen) {
+ if (dch->debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG "hfcpci_fill_Dfifo no fifo mem\n");
+ return;
+ }
+ new_z1 = (le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) + count) &
+ (D_FIFO_SIZE - 1);
+ new_f1 = ((df->f1 + 1) & D_FREG_MASK) | (D_FREG_MASK + 1);
+ src = dch->tx_skb->data + dch->tx_idx; /* source pointer */
+ dst = df->data + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);
+ maxlen = D_FIFO_SIZE - le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);
+ /* end fifo */
+ if (maxlen > count)
+ maxlen = count; /* limit size */
+ memcpy(dst, src, maxlen); /* first copy */
+
+ count -= maxlen; /* remaining bytes */
+ if (count) {
+ dst = df->data; /* start of buffer */
+ src += maxlen; /* new position */
+ memcpy(dst, src, count);
+ }
+ df->za[new_f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);
+ /* for next buffer */
+ df->za[df->f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);
+ /* new pos actual buffer */
+ df->f1 = new_f1; /* next frame */
+ dch->tx_idx = dch->tx_skb->len;
+}
+
+/*
+ * B-channel send routine
+ */
+static void
+hfcpci_fill_fifo(struct bchannel *bch)
+{
+ struct hfc_pci *hc = bch->hw;
+ int maxlen, fcnt;
+ int count, new_z1;
+ struct bzfifo *bz;
+ u_char *bdata;
+ u_char new_f1, *src, *dst;
+ unsigned short *z1t, *z2t;
+
+ if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO))
+ printk(KERN_DEBUG "%s\n", __func__);
+ if ((!bch->tx_skb) || bch->tx_skb->len <= 0)
+ return;
+ count = bch->tx_skb->len - bch->tx_idx;
+ if ((bch->nr & 2) && (!hc->hw.bswapped)) {
+ bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2;
+ bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b2;
+ } else {
+ bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1;
+ bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b1;
+ }
+
+ if (test_bit(FLG_TRANSPARENT, &bch->Flags)) {
+ z1t = &bz->za[MAX_B_FRAMES].z1;
+ z2t = z1t + 1;
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG "hfcpci_fill_fifo_trans ch(%x) "
+ "cnt(%d) z1(%x) z2(%x)\n", bch->nr, count,
+ le16_to_cpu(*z1t), le16_to_cpu(*z2t));
+ fcnt = le16_to_cpu(*z2t) - le16_to_cpu(*z1t);
+ if (fcnt <= 0)
+ fcnt += B_FIFO_SIZE;
+ /* fcnt contains available bytes in fifo */
+ fcnt = B_FIFO_SIZE - fcnt;
+ /* remaining bytes to send (bytes in fifo) */
+next_t_frame:
+ count = bch->tx_skb->len - bch->tx_idx;
+ /* maximum fill shall be HFCPCI_BTRANS_MAX */
+ if (count > HFCPCI_BTRANS_MAX - fcnt)
+ count = HFCPCI_BTRANS_MAX - fcnt;
+ if (count <= 0)
+ return;
+ /* data is suitable for fifo */
+ new_z1 = le16_to_cpu(*z1t) + count;
+ /* new buffer Position */
+ if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL))
+ new_z1 -= B_FIFO_SIZE; /* buffer wrap */
+ src = bch->tx_skb->data + bch->tx_idx;
+ /* source pointer */
+ dst = bdata + (le16_to_cpu(*z1t) - B_SUB_VAL);
+ maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(*z1t);
+ /* end of fifo */
+ if (bch->debug & DEBUG_HW_BFIFO)
+ printk(KERN_DEBUG "hfcpci_FFt fcnt(%d) "
+ "maxl(%d) nz1(%x) dst(%p)\n",
+ fcnt, maxlen, new_z1, dst);
+ fcnt += count;
+ bch->tx_idx += count;
+ if (maxlen > count)
+ maxlen = count; /* limit size */
+ memcpy(dst, src, maxlen); /* first copy */
+ count -= maxlen; /* remaining bytes */
+ if (count) {
+ dst = bdata; /* start of buffer */
+ src += maxlen; /* new position */
+ memcpy(dst, src, count);
+ }
+ *z1t = cpu_to_le16(new_z1); /* now send data */
+ if (bch->tx_idx < bch->tx_skb->len)
+ return;
+ /* send confirm, on trans, free on hdlc. */
+ if (test_bit(FLG_TRANSPARENT, &bch->Flags))
+ confirm_Bsend(bch);
+ dev_kfree_skb(bch->tx_skb);
+ if (get_next_bframe(bch))
+ goto next_t_frame;
+ return;
+ }
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "%s: ch(%x) f1(%d) f2(%d) z1(f1)(%x)\n",
+ __func__, bch->nr, bz->f1, bz->f2,
+ bz->za[bz->f1].z1);
+ fcnt = bz->f1 - bz->f2; /* frame count actually buffered */
+ if (fcnt < 0)
+ fcnt += (MAX_B_FRAMES + 1); /* if wrap around */
+ if (fcnt > (MAX_B_FRAMES - 1)) {
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "hfcpci_fill_Bfifo more as 14 frames\n");
+ return;
+ }
+ /* now determine free bytes in FIFO buffer */
+ maxlen = le16_to_cpu(bz->za[bz->f2].z2) -
+ le16_to_cpu(bz->za[bz->f1].z1) - 1;
+ if (maxlen <= 0)
+ maxlen += B_FIFO_SIZE; /* count now contains available bytes */
+
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG "hfcpci_fill_fifo ch(%x) count(%d/%d)\n",
+ bch->nr, count, maxlen);
+
+ if (maxlen < count) {
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG "hfcpci_fill_fifo no fifo mem\n");
+ return;
+ }
+ new_z1 = le16_to_cpu(bz->za[bz->f1].z1) + count;
+ /* new buffer Position */
+ if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL))
+ new_z1 -= B_FIFO_SIZE; /* buffer wrap */
+
+ new_f1 = ((bz->f1 + 1) & MAX_B_FRAMES);
+ src = bch->tx_skb->data + bch->tx_idx; /* source pointer */
+ dst = bdata + (le16_to_cpu(bz->za[bz->f1].z1) - B_SUB_VAL);
+ maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(bz->za[bz->f1].z1);
+ /* end fifo */
+ if (maxlen > count)
+ maxlen = count; /* limit size */
+ memcpy(dst, src, maxlen); /* first copy */
+
+ count -= maxlen; /* remaining bytes */
+ if (count) {
+ dst = bdata; /* start of buffer */
+ src += maxlen; /* new position */
+ memcpy(dst, src, count);
+ }
+ bz->za[new_f1].z1 = cpu_to_le16(new_z1); /* for next buffer */
+ bz->f1 = new_f1; /* next frame */
+ dev_kfree_skb(bch->tx_skb);
+ get_next_bframe(bch);
+}
+
+
+
+/*
+ * handle L1 state changes TE
+ */
+
+static void
+ph_state_te(struct dchannel *dch)
+{
+ if (dch->debug)
+ printk(KERN_DEBUG "%s: TE newstate %x\n",
+ __func__, dch->state);
+ switch (dch->state) {
+ case 0:
+ l1_event(dch->l1, HW_RESET_IND);
+ break;
+ case 3:
+ l1_event(dch->l1, HW_DEACT_IND);
+ break;
+ case 5:
+ case 8:
+ l1_event(dch->l1, ANYSIGNAL);
+ break;
+ case 6:
+ l1_event(dch->l1, INFO2);
+ break;
+ case 7:
+ l1_event(dch->l1, INFO4_P8);
+ break;
+ }
+}
+
+/*
+ * handle L1 state changes NT
+ */
+
+static void
+handle_nt_timer3(struct dchannel *dch) {
+ struct hfc_pci *hc = dch->hw;
+
+ test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
+ hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ hc->hw.nt_timer = 0;
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ if (test_bit(HFC_CFG_MASTER, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+}
+
+static void
+ph_state_nt(struct dchannel *dch)
+{
+ struct hfc_pci *hc = dch->hw;
+
+ if (dch->debug)
+ printk(KERN_DEBUG "%s: NT newstate %x\n",
+ __func__, dch->state);
+ switch (dch->state) {
+ case 2:
+ if (hc->hw.nt_timer < 0) {
+ hc->hw.nt_timer = 0;
+ test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
+ test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
+ hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ /* Clear already pending ints */
+ if (Read_hfc(hc, HFCPCI_INT_S1));
+ Write_hfc(hc, HFCPCI_STATES, 4 | HFCPCI_LOAD_STATE);
+ udelay(10);
+ Write_hfc(hc, HFCPCI_STATES, 4);
+ dch->state = 4;
+ } else if (hc->hw.nt_timer == 0) {
+ hc->hw.int_m1 |= HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ hc->hw.nt_timer = NT_T1_COUNT;
+ hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER;
+ hc->hw.ctmt |= HFCPCI_TIM3_125;
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt |
+ HFCPCI_CLTIMER);
+ test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
+ test_and_set_bit(FLG_HFC_TIMER_T1, &dch->Flags);
+ /* allow G2 -> G3 transition */
+ Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3);
+ } else {
+ Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3);
+ }
+ break;
+ case 1:
+ hc->hw.nt_timer = 0;
+ test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
+ test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
+ hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ hc->hw.mst_m &= ~HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_DEACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ break;
+ case 4:
+ hc->hw.nt_timer = 0;
+ test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags);
+ test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
+ hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ break;
+ case 3:
+ if (!test_and_set_bit(FLG_HFC_TIMER_T3, &dch->Flags)) {
+ if (!test_and_clear_bit(FLG_L2_ACTIVATED,
+ &dch->Flags)) {
+ handle_nt_timer3(dch);
+ break;
+ }
+ test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags);
+ hc->hw.int_m1 |= HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ hc->hw.nt_timer = NT_T3_COUNT;
+ hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER;
+ hc->hw.ctmt |= HFCPCI_TIM3_125;
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt |
+ HFCPCI_CLTIMER);
+ }
+ break;
+ }
+}
+
+static void
+ph_state(struct dchannel *dch)
+{
+ struct hfc_pci *hc = dch->hw;
+
+ if (hc->hw.protocol == ISDN_P_NT_S0) {
+ if (test_bit(FLG_HFC_TIMER_T3, &dch->Flags) &&
+ hc->hw.nt_timer < 0)
+ handle_nt_timer3(dch);
+ else
+ ph_state_nt(dch);
+ } else
+ ph_state_te(dch);
+}
+
+/*
+ * Layer 1 callback function
+ */
+static int
+hfc_l1callback(struct dchannel *dch, u_int cmd)
+{
+ struct hfc_pci *hc = dch->hw;
+
+ switch (cmd) {
+ case INFO3_P8:
+ case INFO3_P10:
+ if (test_bit(HFC_CFG_MASTER, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ break;
+ case HW_RESET_REQ:
+ Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | 3);
+ /* HFC ST 3 */
+ udelay(6);
+ Write_hfc(hc, HFCPCI_STATES, 3); /* HFC ST 2 */
+ if (test_bit(HFC_CFG_MASTER, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE |
+ HFCPCI_DO_ACTION);
+ l1_event(dch->l1, HW_POWERUP_IND);
+ break;
+ case HW_DEACT_REQ:
+ hc->hw.mst_m &= ~HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ skb_queue_purge(&dch->squeue);
+ if (dch->tx_skb) {
+ dev_kfree_skb(dch->tx_skb);
+ dch->tx_skb = NULL;
+ }
+ dch->tx_idx = 0;
+ if (dch->rx_skb) {
+ dev_kfree_skb(dch->rx_skb);
+ dch->rx_skb = NULL;
+ }
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
+ if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
+ del_timer(&dch->timer);
+ break;
+ case HW_POWERUP_REQ:
+ Write_hfc(hc, HFCPCI_STATES, HFCPCI_DO_ACTION);
+ break;
+ case PH_ACTIVATE_IND:
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
+ GFP_ATOMIC);
+ break;
+ case PH_DEACTIVATE_IND:
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL,
+ GFP_ATOMIC);
+ break;
+ default:
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: unknown command %x\n",
+ __func__, cmd);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Interrupt handler
+ */
+static inline void
+tx_birq(struct bchannel *bch)
+{
+ if (bch->tx_skb && bch->tx_idx < bch->tx_skb->len)
+ hfcpci_fill_fifo(bch);
+ else {
+ if (bch->tx_skb)
+ dev_kfree_skb(bch->tx_skb);
+ if (get_next_bframe(bch))
+ hfcpci_fill_fifo(bch);
+ }
+}
+
+static inline void
+tx_dirq(struct dchannel *dch)
+{
+ if (dch->tx_skb && dch->tx_idx < dch->tx_skb->len)
+ hfcpci_fill_dfifo(dch->hw);
+ else {
+ if (dch->tx_skb)
+ dev_kfree_skb(dch->tx_skb);
+ if (get_next_dframe(dch))
+ hfcpci_fill_dfifo(dch->hw);
+ }
+}
+
+static irqreturn_t
+hfcpci_int(int intno, void *dev_id)
+{
+ struct hfc_pci *hc = dev_id;
+ u_char exval;
+ struct bchannel *bch;
+ u_char val, stat;
+
+ spin_lock(&hc->lock);
+ if (!(hc->hw.int_m2 & 0x08)) {
+ spin_unlock(&hc->lock);
+ return IRQ_NONE; /* not initialised */
+ }
+ stat = Read_hfc(hc, HFCPCI_STATUS);
+ if (HFCPCI_ANYINT & stat) {
+ val = Read_hfc(hc, HFCPCI_INT_S1);
+ if (hc->dch.debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG
+ "HFC-PCI: stat(%02x) s1(%02x)\n", stat, val);
+ } else {
+ /* shared */
+ spin_unlock(&hc->lock);
+ return IRQ_NONE;
+ }
+ hc->irqcnt++;
+
+ if (hc->dch.debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG "HFC-PCI irq %x\n", val);
+ val &= hc->hw.int_m1;
+ if (val & 0x40) { /* state machine irq */
+ exval = Read_hfc(hc, HFCPCI_STATES) & 0xf;
+ if (hc->dch.debug & DEBUG_HW_DCHANNEL)
+ printk(KERN_DEBUG "ph_state chg %d->%d\n",
+ hc->dch.state, exval);
+ hc->dch.state = exval;
+ schedule_event(&hc->dch, FLG_PHCHANGE);
+ val &= ~0x40;
+ }
+ if (val & 0x80) { /* timer irq */
+ if (hc->hw.protocol == ISDN_P_NT_S0) {
+ if ((--hc->hw.nt_timer) < 0)
+ schedule_event(&hc->dch, FLG_PHCHANGE);
+ }
+ val &= ~0x80;
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | HFCPCI_CLTIMER);
+ }
+ if (val & 0x08) {
+ bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1);
+ if (bch)
+ main_rec_hfcpci(bch);
+ else if (hc->dch.debug)
+ printk(KERN_DEBUG "hfcpci spurious 0x08 IRQ\n");
+ }
+ if (val & 0x10) {
+ bch = Sel_BCS(hc, 2);
+ if (bch)
+ main_rec_hfcpci(bch);
+ else if (hc->dch.debug)
+ printk(KERN_DEBUG "hfcpci spurious 0x10 IRQ\n");
+ }
+ if (val & 0x01) {
+ bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1);
+ if (bch)
+ tx_birq(bch);
+ else if (hc->dch.debug)
+ printk(KERN_DEBUG "hfcpci spurious 0x01 IRQ\n");
+ }
+ if (val & 0x02) {
+ bch = Sel_BCS(hc, 2);
+ if (bch)
+ tx_birq(bch);
+ else if (hc->dch.debug)
+ printk(KERN_DEBUG "hfcpci spurious 0x02 IRQ\n");
+ }
+ if (val & 0x20)
+ receive_dmsg(hc);
+ if (val & 0x04) { /* dframe transmitted */
+ if (test_and_clear_bit(FLG_BUSY_TIMER, &hc->dch.Flags))
+ del_timer(&hc->dch.timer);
+ tx_dirq(&hc->dch);
+ }
+ spin_unlock(&hc->lock);
+ return IRQ_HANDLED;
+}
+
+/*
+ * timer callback for D-chan busy resolution. Currently no function
+ */
+static void
+hfcpci_dbusy_timer(struct hfc_pci *hc)
+{
+}
+
+/*
+ * activate/deactivate hardware for selected channels and mode
+ */
+static int
+mode_hfcpci(struct bchannel *bch, int bc, int protocol)
+{
+ struct hfc_pci *hc = bch->hw;
+ int fifo2;
+ u_char rx_slot = 0, tx_slot = 0, pcm_mode;
+
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "HFCPCI bchannel protocol %x-->%x ch %x-->%x\n",
+ bch->state, protocol, bch->nr, bc);
+
+ fifo2 = bc;
+ pcm_mode = (bc>>24) & 0xff;
+ if (pcm_mode) { /* PCM SLOT USE */
+ if (!test_bit(HFC_CFG_PCM, &hc->cfg))
+ printk(KERN_WARNING
+ "%s: pcm channel id without HFC_CFG_PCM\n",
+ __func__);
+ rx_slot = (bc>>8) & 0xff;
+ tx_slot = (bc>>16) & 0xff;
+ bc = bc & 0xff;
+ } else if (test_bit(HFC_CFG_PCM, &hc->cfg) &&
+ (protocol > ISDN_P_NONE))
+ printk(KERN_WARNING "%s: no pcm channel id but HFC_CFG_PCM\n",
+ __func__);
+ if (hc->chanlimit > 1) {
+ hc->hw.bswapped = 0; /* B1 and B2 normal mode */
+ hc->hw.sctrl_e &= ~0x80;
+ } else {
+ if (bc & 2) {
+ if (protocol != ISDN_P_NONE) {
+ hc->hw.bswapped = 1; /* B1 and B2 exchanged */
+ hc->hw.sctrl_e |= 0x80;
+ } else {
+ hc->hw.bswapped = 0; /* B1 and B2 normal mode */
+ hc->hw.sctrl_e &= ~0x80;
+ }
+ fifo2 = 1;
+ } else {
+ hc->hw.bswapped = 0; /* B1 and B2 normal mode */
+ hc->hw.sctrl_e &= ~0x80;
+ }
+ }
+ switch (protocol) {
+ case (-1): /* used for init */
+ bch->state = -1;
+ bch->nr = bc;
+ case (ISDN_P_NONE):
+ if (bch->state == ISDN_P_NONE)
+ return 0;
+ if (bc & 2) {
+ hc->hw.sctrl &= ~SCTRL_B2_ENA;
+ hc->hw.sctrl_r &= ~SCTRL_B2_ENA;
+ } else {
+ hc->hw.sctrl &= ~SCTRL_B1_ENA;
+ hc->hw.sctrl_r &= ~SCTRL_B1_ENA;
+ }
+ if (fifo2 & 2) {
+ hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B2;
+ hc->hw.int_m1 &= ~(HFCPCI_INTS_B2TRANS +
+ HFCPCI_INTS_B2REC);
+ } else {
+ hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B1;
+ hc->hw.int_m1 &= ~(HFCPCI_INTS_B1TRANS +
+ HFCPCI_INTS_B1REC);
+ }
+#ifdef REVERSE_BITORDER
+ if (bch->nr & 2)
+ hc->hw.cirm &= 0x7f;
+ else
+ hc->hw.cirm &= 0xbf;
+#endif
+ bch->state = ISDN_P_NONE;
+ bch->nr = bc;
+ test_and_clear_bit(FLG_HDLC, &bch->Flags);
+ test_and_clear_bit(FLG_TRANSPARENT, &bch->Flags);
+ break;
+ case (ISDN_P_B_RAW):
+ bch->state = protocol;
+ bch->nr = bc;
+ hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0);
+ hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0);
+ if (bc & 2) {
+ hc->hw.sctrl |= SCTRL_B2_ENA;
+ hc->hw.sctrl_r |= SCTRL_B2_ENA;
+#ifdef REVERSE_BITORDER
+ hc->hw.cirm |= 0x80;
+#endif
+ } else {
+ hc->hw.sctrl |= SCTRL_B1_ENA;
+ hc->hw.sctrl_r |= SCTRL_B1_ENA;
+#ifdef REVERSE_BITORDER
+ hc->hw.cirm |= 0x40;
+#endif
+ }
+ if (fifo2 & 2) {
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B2;
+ hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS +
+ HFCPCI_INTS_B2REC);
+ hc->hw.ctmt |= 2;
+ hc->hw.conn &= ~0x18;
+ } else {
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B1;
+ hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS +
+ HFCPCI_INTS_B1REC);
+ hc->hw.ctmt |= 1;
+ hc->hw.conn &= ~0x03;
+ }
+ test_and_set_bit(FLG_TRANSPARENT, &bch->Flags);
+ break;
+ case (ISDN_P_B_HDLC):
+ bch->state = protocol;
+ bch->nr = bc;
+ hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0);
+ hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0);
+ if (bc & 2) {
+ hc->hw.sctrl |= SCTRL_B2_ENA;
+ hc->hw.sctrl_r |= SCTRL_B2_ENA;
+ } else {
+ hc->hw.sctrl |= SCTRL_B1_ENA;
+ hc->hw.sctrl_r |= SCTRL_B1_ENA;
+ }
+ if (fifo2 & 2) {
+ hc->hw.last_bfifo_cnt[1] = 0;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B2;
+ hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS +
+ HFCPCI_INTS_B2REC);
+ hc->hw.ctmt &= ~2;
+ hc->hw.conn &= ~0x18;
+ } else {
+ hc->hw.last_bfifo_cnt[0] = 0;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B1;
+ hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS +
+ HFCPCI_INTS_B1REC);
+ hc->hw.ctmt &= ~1;
+ hc->hw.conn &= ~0x03;
+ }
+ test_and_set_bit(FLG_HDLC, &bch->Flags);
+ break;
+ default:
+ printk(KERN_DEBUG "prot not known %x\n", protocol);
+ return -ENOPROTOOPT;
+ }
+ if (test_bit(HFC_CFG_PCM, &hc->cfg)) {
+ if ((protocol == ISDN_P_NONE) ||
+ (protocol == -1)) { /* init case */
+ rx_slot = 0;
+ tx_slot = 0;
+ } else {
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) {
+ rx_slot |= 0xC0;
+ tx_slot |= 0xC0;
+ } else {
+ rx_slot |= 0x80;
+ tx_slot |= 0x80;
+ }
+ }
+ if (bc & 2) {
+ hc->hw.conn &= 0xc7;
+ hc->hw.conn |= 0x08;
+ printk(KERN_DEBUG "%s: Write_hfc: B2_SSL 0x%x\n",
+ __func__, tx_slot);
+ printk(KERN_DEBUG "%s: Write_hfc: B2_RSL 0x%x\n",
+ __func__, rx_slot);
+ Write_hfc(hc, HFCPCI_B2_SSL, tx_slot);
+ Write_hfc(hc, HFCPCI_B2_RSL, rx_slot);
+ } else {
+ hc->hw.conn &= 0xf8;
+ hc->hw.conn |= 0x01;
+ printk(KERN_DEBUG "%s: Write_hfc: B1_SSL 0x%x\n",
+ __func__, tx_slot);
+ printk(KERN_DEBUG "%s: Write_hfc: B1_RSL 0x%x\n",
+ __func__, rx_slot);
+ Write_hfc(hc, HFCPCI_B1_SSL, tx_slot);
+ Write_hfc(hc, HFCPCI_B1_RSL, rx_slot);
+ }
+ }
+ Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e);
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl);
+ Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+#ifdef REVERSE_BITORDER
+ Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
+#endif
+ return 0;
+}
+
+static int
+set_hfcpci_rxtest(struct bchannel *bch, int protocol, int chan)
+{
+ struct hfc_pci *hc = bch->hw;
+
+ if (bch->debug & DEBUG_HW_BCHANNEL)
+ printk(KERN_DEBUG
+ "HFCPCI bchannel test rx protocol %x-->%x ch %x-->%x\n",
+ bch->state, protocol, bch->nr, chan);
+ if (bch->nr != chan) {
+ printk(KERN_DEBUG
+ "HFCPCI rxtest wrong channel parameter %x/%x\n",
+ bch->nr, chan);
+ return -EINVAL;
+ }
+ switch (protocol) {
+ case (ISDN_P_B_RAW):
+ bch->state = protocol;
+ hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0);
+ if (chan & 2) {
+ hc->hw.sctrl_r |= SCTRL_B2_ENA;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX;
+ hc->hw.int_m1 |= HFCPCI_INTS_B2REC;
+ hc->hw.ctmt |= 2;
+ hc->hw.conn &= ~0x18;
+#ifdef REVERSE_BITORDER
+ hc->hw.cirm |= 0x80;
+#endif
+ } else {
+ hc->hw.sctrl_r |= SCTRL_B1_ENA;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX;
+ hc->hw.int_m1 |= HFCPCI_INTS_B1REC;
+ hc->hw.ctmt |= 1;
+ hc->hw.conn &= ~0x03;
+#ifdef REVERSE_BITORDER
+ hc->hw.cirm |= 0x40;
+#endif
+ }
+ break;
+ case (ISDN_P_B_HDLC):
+ bch->state = protocol;
+ hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0);
+ if (chan & 2) {
+ hc->hw.sctrl_r |= SCTRL_B2_ENA;
+ hc->hw.last_bfifo_cnt[1] = 0;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX;
+ hc->hw.int_m1 |= HFCPCI_INTS_B2REC;
+ hc->hw.ctmt &= ~2;
+ hc->hw.conn &= ~0x18;
+ } else {
+ hc->hw.sctrl_r |= SCTRL_B1_ENA;
+ hc->hw.last_bfifo_cnt[0] = 0;
+ hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX;
+ hc->hw.int_m1 |= HFCPCI_INTS_B1REC;
+ hc->hw.ctmt &= ~1;
+ hc->hw.conn &= ~0x03;
+ }
+ break;
+ default:
+ printk(KERN_DEBUG "prot not known %x\n", protocol);
+ return -ENOPROTOOPT;
+ }
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en);
+ Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r);
+ Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt);
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+#ifdef REVERSE_BITORDER
+ Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm);
+#endif
+ return 0;
+}
+
+static void
+deactivate_bchannel(struct bchannel *bch)
+{
+ struct hfc_pci *hc = bch->hw;
+ u_long flags;
+
+ spin_lock_irqsave(&hc->lock, flags);
+ if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
+ dev_kfree_skb(bch->next_skb);
+ bch->next_skb = NULL;
+ }
+ if (bch->tx_skb) {
+ dev_kfree_skb(bch->tx_skb);
+ bch->tx_skb = NULL;
+ }
+ bch->tx_idx = 0;
+ if (bch->rx_skb) {
+ dev_kfree_skb(bch->rx_skb);
+ bch->rx_skb = NULL;
+ }
+ mode_hfcpci(bch, bch->nr, ISDN_P_NONE);
+ test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
+ test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
+ spin_unlock_irqrestore(&hc->lock, flags);
+}
+
+/*
+ * Layer 1 B-channel hardware access
+ */
+static int
+channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = 0;
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+static int
+hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ struct hfc_pci *hc = bch->hw;
+ int ret = -EINVAL;
+ u_long flags;
+
+ if (bch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg);
+ switch (cmd) {
+ case HW_TESTRX_RAW:
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = set_hfcpci_rxtest(bch, ISDN_P_B_RAW, (int)(long)arg);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case HW_TESTRX_HDLC:
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = set_hfcpci_rxtest(bch, ISDN_P_B_HDLC, (int)(long)arg);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case HW_TESTRX_OFF:
+ spin_lock_irqsave(&hc->lock, flags);
+ mode_hfcpci(bch, bch->nr, ISDN_P_NONE);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ ret = 0;
+ break;
+ case CLOSE_CHANNEL:
+ test_and_clear_bit(FLG_OPEN, &bch->Flags);
+ if (test_bit(FLG_ACTIVE, &bch->Flags))
+ deactivate_bchannel(bch);
+ ch->protocol = ISDN_P_NONE;
+ ch->peer = NULL;
+ module_put(THIS_MODULE);
+ ret = 0;
+ break;
+ case CONTROL_CHANNEL:
+ ret = channel_bctrl(bch, arg);
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown prim(%x)\n",
+ __func__, cmd);
+ }
+ return ret;
+}
+
+/*
+ * Layer2 -> Layer 1 Dchannel data
+ */
+static int
+hfcpci_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct hfc_pci *hc = dch->hw;
+ int ret = -EINVAL;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ unsigned int id;
+ u_long flags;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = dchannel_senddata(dch, skb);
+ if (ret > 0) { /* direct TX */
+ id = hh->id; /* skb can be freed */
+ hfcpci_fill_dfifo(dch->hw);
+ ret = 0;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
+ } else
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return ret;
+ case PH_ACTIVATE_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ if (hc->hw.protocol == ISDN_P_NT_S0) {
+ ret = 0;
+ if (test_bit(HFC_CFG_MASTER, &hc->cfg))
+ hc->hw.mst_m |= HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ if (test_bit(FLG_ACTIVE, &dch->Flags)) {
+ spin_unlock_irqrestore(&hc->lock, flags);
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND,
+ MISDN_ID_ANY, 0, NULL, GFP_ATOMIC);
+ break;
+ }
+ test_and_set_bit(FLG_L2_ACTIVATED, &dch->Flags);
+ Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE |
+ HFCPCI_DO_ACTION | 1);
+ } else
+ ret = l1_event(dch->l1, hh->prim);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ case PH_DEACTIVATE_REQ:
+ test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags);
+ spin_lock_irqsave(&hc->lock, flags);
+ if (hc->hw.protocol == ISDN_P_NT_S0) {
+ /* prepare deactivation */
+ Write_hfc(hc, HFCPCI_STATES, 0x40);
+ skb_queue_purge(&dch->squeue);
+ if (dch->tx_skb) {
+ dev_kfree_skb(dch->tx_skb);
+ dch->tx_skb = NULL;
+ }
+ dch->tx_idx = 0;
+ if (dch->rx_skb) {
+ dev_kfree_skb(dch->rx_skb);
+ dch->rx_skb = NULL;
+ }
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
+ if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags))
+ del_timer(&dch->timer);
+#ifdef FIXME
+ if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
+ dchannel_sched_event(&hc->dch, D_CLEARBUSY);
+#endif
+ hc->hw.mst_m &= ~HFCPCI_MASTER;
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ ret = 0;
+ } else {
+ ret = l1_event(dch->l1, hh->prim);
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ break;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+/*
+ * Layer2 -> Layer 1 Bchannel data
+ */
+static int
+hfcpci_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ struct hfc_pci *hc = bch->hw;
+ int ret = -EINVAL;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ unsigned int id;
+ u_long flags;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ ret = bchannel_senddata(bch, skb);
+ if (ret > 0) { /* direct TX */
+ id = hh->id; /* skb can be freed */
+ hfcpci_fill_fifo(bch);
+ ret = 0;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
+ queue_ch_frame(ch, PH_DATA_CNF, id, NULL);
+ } else
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return ret;
+ case PH_ACTIVATE_REQ:
+ spin_lock_irqsave(&hc->lock, flags);
+ if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags))
+ ret = mode_hfcpci(bch, bch->nr, ch->protocol);
+ else
+ ret = 0;
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (!ret)
+ _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
+ NULL, GFP_KERNEL);
+ break;
+ case PH_DEACTIVATE_REQ:
+ deactivate_bchannel(bch);
+ _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
+ NULL, GFP_KERNEL);
+ ret = 0;
+ break;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+/*
+ * called for card init message
+ */
+
+void
+inithfcpci(struct hfc_pci *hc)
+{
+ printk(KERN_DEBUG "inithfcpci: entered\n");
+ hc->dch.timer.function = (void *) hfcpci_dbusy_timer;
+ hc->dch.timer.data = (long) &hc->dch;
+ init_timer(&hc->dch.timer);
+ hc->chanlimit = 2;
+ mode_hfcpci(&hc->bch[0], 1, -1);
+ mode_hfcpci(&hc->bch[1], 2, -1);
+}
+
+
+static int
+init_card(struct hfc_pci *hc)
+{
+ int cnt = 3;
+ u_long flags;
+
+ printk(KERN_DEBUG "init_card: entered\n");
+
+
+ spin_lock_irqsave(&hc->lock, flags);
+ disable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (request_irq(hc->irq, hfcpci_int, IRQF_SHARED, "HFC PCI", hc)) {
+ printk(KERN_WARNING
+ "mISDN: couldn't get interrupt %d\n", hc->irq);
+ return -EIO;
+ }
+ spin_lock_irqsave(&hc->lock, flags);
+ reset_hfcpci(hc);
+ while (cnt) {
+ inithfcpci(hc);
+ /*
+ * Finally enable IRQ output
+ * this is only allowed, if an IRQ routine is allready
+ * established for this HFC, so don't do that earlier
+ */
+ enable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ /* Timeout 80ms */
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout((80*HZ)/1000);
+ printk(KERN_INFO "HFC PCI: IRQ %d count %d\n",
+ hc->irq, hc->irqcnt);
+ /* now switch timer interrupt off */
+ spin_lock_irqsave(&hc->lock, flags);
+ hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ /* reinit mode reg */
+ Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m);
+ if (!hc->irqcnt) {
+ printk(KERN_WARNING
+ "HFC PCI: IRQ(%d) getting no interrupts "
+ "during init %d\n", hc->irq, 4 - cnt);
+ if (cnt == 1) {
+ spin_unlock_irqrestore(&hc->lock, flags);
+ return -EIO;
+ } else {
+ reset_hfcpci(hc);
+ cnt--;
+ }
+ } else {
+ spin_unlock_irqrestore(&hc->lock, flags);
+ hc->initdone = 1;
+ return 0;
+ }
+ }
+ disable_hwirq(hc);
+ spin_unlock_irqrestore(&hc->lock, flags);
+ free_irq(hc->irq, hc);
+ return -EIO;
+}
+
+static int
+channel_ctrl(struct hfc_pci *hc, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+ u_char slot;
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT |
+ MISDN_CTRL_DISCONNECT;
+ break;
+ case MISDN_CTRL_LOOP:
+ /* channel 0 disabled loop */
+ if (cq->channel < 0 || cq->channel > 2) {
+ ret = -EINVAL;
+ break;
+ }
+ if (cq->channel & 1) {
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
+ slot = 0xC0;
+ else
+ slot = 0x80;
+ printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n",
+ __func__, slot);
+ Write_hfc(hc, HFCPCI_B1_SSL, slot);
+ Write_hfc(hc, HFCPCI_B1_RSL, slot);
+ hc->hw.conn = (hc->hw.conn & ~7) | 6;
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ }
+ if (cq->channel & 2) {
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
+ slot = 0xC1;
+ else
+ slot = 0x81;
+ printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n",
+ __func__, slot);
+ Write_hfc(hc, HFCPCI_B2_SSL, slot);
+ Write_hfc(hc, HFCPCI_B2_RSL, slot);
+ hc->hw.conn = (hc->hw.conn & ~0x38) | 0x30;
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ }
+ if (cq->channel & 3)
+ hc->hw.trm |= 0x80; /* enable IOM-loop */
+ else {
+ hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09;
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ hc->hw.trm &= 0x7f; /* disable IOM-loop */
+ }
+ Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
+ break;
+ case MISDN_CTRL_CONNECT:
+ if (cq->channel == cq->p1) {
+ ret = -EINVAL;
+ break;
+ }
+ if (cq->channel < 1 || cq->channel > 2 ||
+ cq->p1 < 1 || cq->p1 > 2) {
+ ret = -EINVAL;
+ break;
+ }
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
+ slot = 0xC0;
+ else
+ slot = 0x80;
+ printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n",
+ __func__, slot);
+ Write_hfc(hc, HFCPCI_B1_SSL, slot);
+ Write_hfc(hc, HFCPCI_B2_RSL, slot);
+ if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg))
+ slot = 0xC1;
+ else
+ slot = 0x81;
+ printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n",
+ __func__, slot);
+ Write_hfc(hc, HFCPCI_B2_SSL, slot);
+ Write_hfc(hc, HFCPCI_B1_RSL, slot);
+ hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x36;
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ hc->hw.trm |= 0x80;
+ Write_hfc(hc, HFCPCI_TRM, hc->hw.trm);
+ break;
+ case MISDN_CTRL_DISCONNECT:
+ hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09;
+ Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn);
+ hc->hw.trm &= 0x7f; /* disable IOM-loop */
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n",
+ __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int
+open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch,
+ struct channel_req *rq)
+{
+ int err = 0;
+
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__,
+ hc->dch.dev.id, __builtin_return_address(0));
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ if (!hc->initdone) {
+ if (rq->protocol == ISDN_P_TE_S0) {
+ err = create_l1(&hc->dch, hfc_l1callback);
+ if (err)
+ return err;
+ }
+ hc->hw.protocol = rq->protocol;
+ ch->protocol = rq->protocol;
+ err = init_card(hc);
+ if (err)
+ return err;
+ } else {
+ if (rq->protocol != ch->protocol) {
+ if (hc->hw.protocol == ISDN_P_TE_S0)
+ l1_event(hc->dch.l1, CLOSE_CHANNEL);
+ hc->hw.protocol = rq->protocol;
+ ch->protocol = rq->protocol;
+ hfcpci_setmode(hc);
+ }
+ }
+
+ if (((ch->protocol == ISDN_P_NT_S0) && (hc->dch.state == 3)) ||
+ ((ch->protocol == ISDN_P_TE_S0) && (hc->dch.state == 7))) {
+ _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY,
+ 0, NULL, GFP_KERNEL);
+ }
+ rq->ch = ch;
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+static int
+open_bchannel(struct hfc_pci *hc, struct channel_req *rq)
+{
+ struct bchannel *bch;
+
+ if (rq->adr.channel > 2)
+ return -EINVAL;
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ bch = &hc->bch[rq->adr.channel - 1];
+ if (test_and_set_bit(FLG_OPEN, &bch->Flags))
+ return -EBUSY; /* b-channel can be only open once */
+ bch->ch.protocol = rq->protocol;
+ rq->ch = &bch->ch; /* TODO: E-channel */
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+/*
+ * device control function
+ */
+static int
+hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct hfc_pci *hc = dch->hw;
+ struct channel_req *rq;
+ int err = 0;
+
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n",
+ __func__, cmd, arg);
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ rq = arg;
+ if (rq->adr.channel == 0)
+ err = open_dchannel(hc, ch, rq);
+ else
+ err = open_bchannel(hc, rq);
+ break;
+ case CLOSE_CHANNEL:
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) close from %p\n",
+ __func__, hc->dch.dev.id,
+ __builtin_return_address(0));
+ module_put(THIS_MODULE);
+ break;
+ case CONTROL_CHANNEL:
+ err = channel_ctrl(hc, arg);
+ break;
+ default:
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: unknown command %x\n",
+ __func__, cmd);
+ return -EINVAL;
+ }
+ return err;
+}
+
+static int
+setup_hw(struct hfc_pci *hc)
+{
+ void *buffer;
+
+ printk(KERN_INFO "mISDN: HFC-PCI driver %s\n", hfcpci_revision);
+ hc->hw.cirm = 0;
+ hc->dch.state = 0;
+ pci_set_master(hc->pdev);
+ if (!hc->irq) {
+ printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n");
+ return 1;
+ }
+ hc->hw.pci_io = (char *)(ulong)hc->pdev->resource[1].start;
+
+ if (!hc->hw.pci_io) {
+ printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n");
+ return 1;
+ }
+ /* Allocate memory for FIFOS */
+ /* the memory needs to be on a 32k boundary within the first 4G */
+ pci_set_dma_mask(hc->pdev, 0xFFFF8000);
+ buffer = pci_alloc_consistent(hc->pdev, 0x8000, &hc->hw.dmahandle);
+ /* We silently assume the address is okay if nonzero */
+ if (!buffer) {
+ printk(KERN_WARNING
+ "HFC-PCI: Error allocating memory for FIFO!\n");
+ return 1;
+ }
+ hc->hw.fifos = buffer;
+ pci_write_config_dword(hc->pdev, 0x80, hc->hw.dmahandle);
+ hc->hw.pci_io = ioremap((ulong) hc->hw.pci_io, 256);
+ printk(KERN_INFO
+ "HFC-PCI: defined at mem %#lx fifo %#lx(%#lx) IRQ %d HZ %d\n",
+ (u_long) hc->hw.pci_io, (u_long) hc->hw.fifos,
+ (u_long) virt_to_bus(hc->hw.fifos),
+ hc->irq, HZ);
+ /* enable memory mapped ports, disable busmaster */
+ pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO);
+ hc->hw.int_m2 = 0;
+ disable_hwirq(hc);
+ hc->hw.int_m1 = 0;
+ Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1);
+ /* At this point the needed PCI config is done */
+ /* fifos are still not enabled */
+ hc->hw.timer.function = (void *) hfcpci_Timer;
+ hc->hw.timer.data = (long) hc;
+ init_timer(&hc->hw.timer);
+ /* default PCM master */
+ test_and_set_bit(HFC_CFG_MASTER, &hc->cfg);
+ return 0;
+}
+
+static void
+release_card(struct hfc_pci *hc) {
+ u_long flags;
+
+ spin_lock_irqsave(&hc->lock, flags);
+ hc->hw.int_m2 = 0; /* interrupt output off ! */
+ disable_hwirq(hc);
+ mode_hfcpci(&hc->bch[0], 1, ISDN_P_NONE);
+ mode_hfcpci(&hc->bch[1], 2, ISDN_P_NONE);
+ if (hc->dch.timer.function != NULL) {
+ del_timer(&hc->dch.timer);
+ hc->dch.timer.function = NULL;
+ }
+ spin_unlock_irqrestore(&hc->lock, flags);
+ if (hc->hw.protocol == ISDN_P_TE_S0)
+ l1_event(hc->dch.l1, CLOSE_CHANNEL);
+ if (hc->initdone)
+ free_irq(hc->irq, hc);
+ release_io_hfcpci(hc); /* must release after free_irq! */
+ mISDN_unregister_device(&hc->dch.dev);
+ mISDN_freebchannel(&hc->bch[1]);
+ mISDN_freebchannel(&hc->bch[0]);
+ mISDN_freedchannel(&hc->dch);
+ list_del(&hc->list);
+ pci_set_drvdata(hc->pdev, NULL);
+ kfree(hc);
+}
+
+static int
+setup_card(struct hfc_pci *card)
+{
+ int err = -EINVAL;
+ u_int i;
+ u_long flags;
+ char name[MISDN_MAX_IDLEN];
+
+ if (HFC_cnt >= MAX_CARDS)
+ return -EINVAL; /* maybe better value */
+
+ card->dch.debug = debug;
+ spin_lock_init(&card->lock);
+ mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, ph_state);
+ card->dch.hw = card;
+ card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
+ card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
+ (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
+ card->dch.dev.D.send = hfcpci_l2l1D;
+ card->dch.dev.D.ctrl = hfc_dctrl;
+ card->dch.dev.nrbchan = 2;
+ for (i = 0; i < 2; i++) {
+ card->bch[i].nr = i + 1;
+ test_and_set_bit(i + 1, &card->dch.dev.channelmap[0]);
+ card->bch[i].debug = debug;
+ mISDN_initbchannel(&card->bch[i], MAX_DATA_MEM);
+ card->bch[i].hw = card;
+ card->bch[i].ch.send = hfcpci_l2l1B;
+ card->bch[i].ch.ctrl = hfc_bctrl;
+ card->bch[i].ch.nr = i + 1;
+ list_add(&card->bch[i].ch.list, &card->dch.dev.bchannels);
+ }
+ err = setup_hw(card);
+ if (err)
+ goto error;
+ snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-pci.%d", HFC_cnt + 1);
+ err = mISDN_register_device(&card->dch.dev, name);
+ if (err)
+ goto error;
+ HFC_cnt++;
+ write_lock_irqsave(&HFClock, flags);
+ list_add_tail(&card->list, &HFClist);
+ write_unlock_irqrestore(&HFClock, flags);
+ printk(KERN_INFO "HFC %d cards installed\n", HFC_cnt);
+ return 0;
+error:
+ mISDN_freebchannel(&card->bch[1]);
+ mISDN_freebchannel(&card->bch[0]);
+ mISDN_freedchannel(&card->dch);
+ kfree(card);
+ return err;
+}
+
+/* private data in the PCI devices list */
+struct _hfc_map {
+ u_int subtype;
+ u_int flag;
+ char *name;
+};
+
+static const struct _hfc_map hfc_map[] =
+{
+ {HFC_CCD_2BD0, 0, "CCD/Billion/Asuscom 2BD0"},
+ {HFC_CCD_B000, 0, "Billion B000"},
+ {HFC_CCD_B006, 0, "Billion B006"},
+ {HFC_CCD_B007, 0, "Billion B007"},
+ {HFC_CCD_B008, 0, "Billion B008"},
+ {HFC_CCD_B009, 0, "Billion B009"},
+ {HFC_CCD_B00A, 0, "Billion B00A"},
+ {HFC_CCD_B00B, 0, "Billion B00B"},
+ {HFC_CCD_B00C, 0, "Billion B00C"},
+ {HFC_CCD_B100, 0, "Seyeon B100"},
+ {HFC_CCD_B700, 0, "Primux II S0 B700"},
+ {HFC_CCD_B701, 0, "Primux II S0 NT B701"},
+ {HFC_ABOCOM_2BD1, 0, "Abocom/Magitek 2BD1"},
+ {HFC_ASUS_0675, 0, "Asuscom/Askey 675"},
+ {HFC_BERKOM_TCONCEPT, 0, "German telekom T-Concept"},
+ {HFC_BERKOM_A1T, 0, "German telekom A1T"},
+ {HFC_ANIGMA_MC145575, 0, "Motorola MC145575"},
+ {HFC_ZOLTRIX_2BD0, 0, "Zoltrix 2BD0"},
+ {HFC_DIGI_DF_M_IOM2_E, 0,
+ "Digi International DataFire Micro V IOM2 (Europe)"},
+ {HFC_DIGI_DF_M_E, 0,
+ "Digi International DataFire Micro V (Europe)"},
+ {HFC_DIGI_DF_M_IOM2_A, 0,
+ "Digi International DataFire Micro V IOM2 (North America)"},
+ {HFC_DIGI_DF_M_A, 0,
+ "Digi International DataFire Micro V (North America)"},
+ {HFC_SITECOM_DC105V2, 0, "Sitecom Connectivity DC-105 ISDN TA"},
+ {},
+};
+
+static struct pci_device_id hfc_ids[] =
+{
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_2BD0,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[0]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B000,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[1]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B006,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[2]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B007,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[3]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B008,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[4]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B009,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[5]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[6]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00B,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[7]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00C,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[8]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B100,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[9]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B700,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[10]},
+ {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B701,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[11]},
+ {PCI_VENDOR_ID_ABOCOM, PCI_DEVICE_ID_ABOCOM_2BD1,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[12]},
+ {PCI_VENDOR_ID_ASUSTEK, PCI_DEVICE_ID_ASUSTEK_0675,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[13]},
+ {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_T_CONCEPT,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[14]},
+ {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_A1T,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[15]},
+ {PCI_VENDOR_ID_ANIGMA, PCI_DEVICE_ID_ANIGMA_MC145575,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[16]},
+ {PCI_VENDOR_ID_ZOLTRIX, PCI_DEVICE_ID_ZOLTRIX_2BD0,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[17]},
+ {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_E,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[18]},
+ {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_E,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[19]},
+ {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[20]},
+ {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_A,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[21]},
+ {PCI_VENDOR_ID_SITECOM, PCI_DEVICE_ID_SITECOM_DC105V2,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[22]},
+ {},
+};
+
+static int __devinit
+hfc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = -ENOMEM;
+ struct hfc_pci *card;
+ struct _hfc_map *m = (struct _hfc_map *)ent->driver_data;
+
+ card = kzalloc(sizeof(struct hfc_pci), GFP_ATOMIC);
+ if (!card) {
+ printk(KERN_ERR "No kmem for HFC card\n");
+ return err;
+ }
+ card->pdev = pdev;
+ card->subtype = m->subtype;
+ err = pci_enable_device(pdev);
+ if (err) {
+ kfree(card);
+ return err;
+ }
+
+ printk(KERN_INFO "mISDN_hfcpci: found adapter %s at %s\n",
+ m->name, pci_name(pdev));
+
+ card->irq = pdev->irq;
+ pci_set_drvdata(pdev, card);
+ err = setup_card(card);
+ if (err)
+ pci_set_drvdata(pdev, NULL);
+ return err;
+}
+
+static void __devexit
+hfc_remove_pci(struct pci_dev *pdev)
+{
+ struct hfc_pci *card = pci_get_drvdata(pdev);
+ u_long flags;
+
+ if (card) {
+ write_lock_irqsave(&HFClock, flags);
+ release_card(card);
+ write_unlock_irqrestore(&HFClock, flags);
+ } else
+ if (debug)
+ printk(KERN_WARNING "%s: drvdata allready removed\n",
+ __func__);
+}
+
+
+static struct pci_driver hfc_driver = {
+ .name = "hfcpci",
+ .probe = hfc_probe,
+ .remove = __devexit_p(hfc_remove_pci),
+ .id_table = hfc_ids,
+};
+
+static int __init
+HFC_init(void)
+{
+ int err;
+
+ err = pci_register_driver(&hfc_driver);
+ return err;
+}
+
+static void __exit
+HFC_cleanup(void)
+{
+ struct hfc_pci *card, *next;
+
+ list_for_each_entry_safe(card, next, &HFClist, list) {
+ release_card(card);
+ }
+ pci_unregister_driver(&hfc_driver);
+}
+
+module_init(HFC_init);
+module_exit(HFC_cleanup);
--- /dev/null
+#
+# modularer ISDN driver
+#
+
+menuconfig MISDN
+ tristate "Modular ISDN driver"
+ help
+ Enable support for the modular ISDN driver.
+
+if MISDN != n
+
+config MISDN_DSP
+ tristate "Digital Audio Processing of transparent data"
+ depends on MISDN
+ help
+ Enable support for digital audio processing capability.
+ This module may be used for special applications that require
+ cross connecting of bchannels, conferencing, dtmf decoding
+ echo cancelation, tone generation, and Blowfish encryption and
+ decryption.
+ It may use hardware features if available.
+ E.g. it is required for PBX4Linux. Go to http://isdn.eversberg.eu
+ and get more informations about this module and it's usage.
+ If unsure, say 'N'.
+
+config MISDN_L1OIP
+ tristate "ISDN over IP tunnel"
+ depends on MISDN
+ help
+ Enable support for ISDN over IP tunnel.
+
+ It features:
+ - dynamic IP exchange, if one or both peers have dynamic IPs
+ - BRI (S0) and PRI (S2M) interface
+ - layer 1 control via network keepalive frames
+ - direct tunneling of physical interface via IP
+
+ NOTE: This protocol is called 'Layer 1 over IP' and is not
+ compatible with ISDNoIP (Agfeo) or TDMoIP. Protocol description is
+ provided in the source code.
+
+source "drivers/isdn/hardware/mISDN/Kconfig"
+
+endif #MISDN
--- /dev/null
+#
+# Makefile for the modular ISDN driver
+#
+
+obj-$(CONFIG_MISDN) += mISDN_core.o
+obj-$(CONFIG_MISDN_DSP) += mISDN_dsp.o
+obj-$(CONFIG_MISDN_L1OIP) += l1oip.o
+
+# multi objects
+
+mISDN_core-objs := core.o fsm.o socket.o hwchannel.o stack.o layer1.o layer2.o tei.o timerdev.o
+mISDN_dsp-objs := dsp_core.o dsp_cmx.o dsp_tones.o dsp_dtmf.o dsp_audio.o dsp_blowfish.o dsp_pipeline.o dsp_hwec.o
+l1oip-objs := l1oip_core.o l1oip_codec.o
--- /dev/null
+/*
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/mISDNif.h>
+#include "core.h"
+
+static u_int debug;
+
+MODULE_AUTHOR("Karsten Keil");
+MODULE_LICENSE("GPL");
+module_param(debug, uint, S_IRUGO | S_IWUSR);
+
+static LIST_HEAD(devices);
+DEFINE_RWLOCK(device_lock);
+static u64 device_ids;
+#define MAX_DEVICE_ID 63
+
+static LIST_HEAD(Bprotocols);
+DEFINE_RWLOCK(bp_lock);
+
+struct mISDNdevice
+*get_mdevice(u_int id)
+{
+ struct mISDNdevice *dev;
+
+ read_lock(&device_lock);
+ list_for_each_entry(dev, &devices, D.list)
+ if (dev->id == id) {
+ read_unlock(&device_lock);
+ return dev;
+ }
+ read_unlock(&device_lock);
+ return NULL;
+}
+
+int
+get_mdevice_count(void)
+{
+ struct mISDNdevice *dev;
+ int cnt = 0;
+
+ read_lock(&device_lock);
+ list_for_each_entry(dev, &devices, D.list)
+ cnt++;
+ read_unlock(&device_lock);
+ return cnt;
+}
+
+static int
+get_free_devid(void)
+{
+ u_int i;
+
+ for (i = 0; i <= MAX_DEVICE_ID; i++)
+ if (!test_and_set_bit(i, (u_long *)&device_ids))
+ return i;
+ return -1;
+}
+
+int
+mISDN_register_device(struct mISDNdevice *dev, char *name)
+{
+ u_long flags;
+ int err;
+
+ dev->id = get_free_devid();
+ if (dev->id < 0)
+ return -EBUSY;
+ if (name && name[0])
+ strcpy(dev->name, name);
+ else
+ sprintf(dev->name, "mISDN%d", dev->id);
+ if (debug & DEBUG_CORE)
+ printk(KERN_DEBUG "mISDN_register %s %d\n",
+ dev->name, dev->id);
+ err = create_stack(dev);
+ if (err)
+ return err;
+ write_lock_irqsave(&device_lock, flags);
+ list_add_tail(&dev->D.list, &devices);
+ write_unlock_irqrestore(&device_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_register_device);
+
+void
+mISDN_unregister_device(struct mISDNdevice *dev) {
+ u_long flags;
+
+ if (debug & DEBUG_CORE)
+ printk(KERN_DEBUG "mISDN_unregister %s %d\n",
+ dev->name, dev->id);
+ write_lock_irqsave(&device_lock, flags);
+ list_del(&dev->D.list);
+ write_unlock_irqrestore(&device_lock, flags);
+ test_and_clear_bit(dev->id, (u_long *)&device_ids);
+ delete_stack(dev);
+}
+EXPORT_SYMBOL(mISDN_unregister_device);
+
+u_int
+get_all_Bprotocols(void)
+{
+ struct Bprotocol *bp;
+ u_int m = 0;
+
+ read_lock(&bp_lock);
+ list_for_each_entry(bp, &Bprotocols, list)
+ m |= bp->Bprotocols;
+ read_unlock(&bp_lock);
+ return m;
+}
+
+struct Bprotocol *
+get_Bprotocol4mask(u_int m)
+{
+ struct Bprotocol *bp;
+
+ read_lock(&bp_lock);
+ list_for_each_entry(bp, &Bprotocols, list)
+ if (bp->Bprotocols & m) {
+ read_unlock(&bp_lock);
+ return bp;
+ }
+ read_unlock(&bp_lock);
+ return NULL;
+}
+
+struct Bprotocol *
+get_Bprotocol4id(u_int id)
+{
+ u_int m;
+
+ if (id < ISDN_P_B_START || id > 63) {
+ printk(KERN_WARNING "%s id not in range %d\n",
+ __func__, id);
+ return NULL;
+ }
+ m = 1 << (id & ISDN_P_B_MASK);
+ return get_Bprotocol4mask(m);
+}
+
+int
+mISDN_register_Bprotocol(struct Bprotocol *bp)
+{
+ u_long flags;
+ struct Bprotocol *old;
+
+ if (debug & DEBUG_CORE)
+ printk(KERN_DEBUG "%s: %s/%x\n", __func__,
+ bp->name, bp->Bprotocols);
+ old = get_Bprotocol4mask(bp->Bprotocols);
+ if (old) {
+ printk(KERN_WARNING
+ "register duplicate protocol old %s/%x new %s/%x\n",
+ old->name, old->Bprotocols, bp->name, bp->Bprotocols);
+ return -EBUSY;
+ }
+ write_lock_irqsave(&bp_lock, flags);
+ list_add_tail(&bp->list, &Bprotocols);
+ write_unlock_irqrestore(&bp_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_register_Bprotocol);
+
+void
+mISDN_unregister_Bprotocol(struct Bprotocol *bp)
+{
+ u_long flags;
+
+ if (debug & DEBUG_CORE)
+ printk(KERN_DEBUG "%s: %s/%x\n", __func__, bp->name,
+ bp->Bprotocols);
+ write_lock_irqsave(&bp_lock, flags);
+ list_del(&bp->list);
+ write_unlock_irqrestore(&bp_lock, flags);
+}
+EXPORT_SYMBOL(mISDN_unregister_Bprotocol);
+
+int
+mISDNInit(void)
+{
+ int err;
+
+ printk(KERN_INFO "Modular ISDN core version %d.%d.%d\n",
+ MISDN_MAJOR_VERSION, MISDN_MINOR_VERSION, MISDN_RELEASE);
+ mISDN_initstack(&debug);
+ err = mISDN_inittimer(&debug);
+ if (err)
+ goto error;
+ err = l1_init(&debug);
+ if (err) {
+ mISDN_timer_cleanup();
+ goto error;
+ }
+ err = Isdnl2_Init(&debug);
+ if (err) {
+ mISDN_timer_cleanup();
+ l1_cleanup();
+ goto error;
+ }
+ err = misdn_sock_init(&debug);
+ if (err) {
+ mISDN_timer_cleanup();
+ l1_cleanup();
+ Isdnl2_cleanup();
+ }
+error:
+ return err;
+}
+
+void mISDN_cleanup(void)
+{
+ misdn_sock_cleanup();
+ mISDN_timer_cleanup();
+ l1_cleanup();
+ Isdnl2_cleanup();
+
+ if (!list_empty(&devices))
+ printk(KERN_ERR "%s devices still registered\n", __func__);
+
+ if (!list_empty(&Bprotocols))
+ printk(KERN_ERR "%s Bprotocols still registered\n", __func__);
+ printk(KERN_DEBUG "mISDNcore unloaded\n");
+}
+
+module_init(mISDNInit);
+module_exit(mISDN_cleanup);
+
--- /dev/null
+/*
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef mISDN_CORE_H
+#define mISDN_CORE_H
+
+extern struct mISDNdevice *get_mdevice(u_int);
+extern int get_mdevice_count(void);
+
+/* stack status flag */
+#define mISDN_STACK_ACTION_MASK 0x0000ffff
+#define mISDN_STACK_COMMAND_MASK 0x000f0000
+#define mISDN_STACK_STATUS_MASK 0xfff00000
+/* action bits 0-15 */
+#define mISDN_STACK_WORK 0
+#define mISDN_STACK_SETUP 1
+#define mISDN_STACK_CLEARING 2
+#define mISDN_STACK_RESTART 3
+#define mISDN_STACK_WAKEUP 4
+#define mISDN_STACK_ABORT 15
+/* command bits 16-19 */
+#define mISDN_STACK_STOPPED 16
+#define mISDN_STACK_INIT 17
+#define mISDN_STACK_THREADSTART 18
+/* status bits 20-31 */
+#define mISDN_STACK_BCHANNEL 20
+#define mISDN_STACK_ACTIVE 29
+#define mISDN_STACK_RUNNING 30
+#define mISDN_STACK_KILLED 31
+
+
+/* manager options */
+#define MGR_OPT_USER 24
+#define MGR_OPT_NETWORK 25
+
+extern int connect_Bstack(struct mISDNdevice *, struct mISDNchannel *,
+ u_int, struct sockaddr_mISDN *);
+extern int connect_layer1(struct mISDNdevice *, struct mISDNchannel *,
+ u_int, struct sockaddr_mISDN *);
+extern int create_l2entity(struct mISDNdevice *, struct mISDNchannel *,
+ u_int, struct sockaddr_mISDN *);
+
+extern int create_stack(struct mISDNdevice *);
+extern int create_teimanager(struct mISDNdevice *);
+extern void delete_teimanager(struct mISDNchannel *);
+extern void delete_channel(struct mISDNchannel *);
+extern void delete_stack(struct mISDNdevice *);
+extern void mISDN_initstack(u_int *);
+extern int misdn_sock_init(u_int *);
+extern void misdn_sock_cleanup(void);
+extern void add_layer2(struct mISDNchannel *, struct mISDNstack *);
+extern void __add_layer2(struct mISDNchannel *, struct mISDNstack *);
+
+extern u_int get_all_Bprotocols(void);
+struct Bprotocol *get_Bprotocol4mask(u_int);
+struct Bprotocol *get_Bprotocol4id(u_int);
+
+extern int mISDN_inittimer(u_int *);
+extern void mISDN_timer_cleanup(void);
+
+extern int l1_init(u_int *);
+extern void l1_cleanup(void);
+extern int Isdnl2_Init(u_int *);
+extern void Isdnl2_cleanup(void);
+
+#endif
--- /dev/null
+/*
+ * Audio support data for ISDN4Linux.
+ *
+ * Copyright 2002/2003 by Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#define DEBUG_DSP_CTRL 0x0001
+#define DEBUG_DSP_CORE 0x0002
+#define DEBUG_DSP_DTMF 0x0004
+#define DEBUG_DSP_CMX 0x0010
+#define DEBUG_DSP_TONE 0x0020
+#define DEBUG_DSP_BLOWFISH 0x0040
+#define DEBUG_DSP_DELAY 0x0100
+#define DEBUG_DSP_DTMFCOEFF 0x8000 /* heavy output */
+
+/* options may be:
+ *
+ * bit 0 = use ulaw instead of alaw
+ * bit 1 = enable hfc hardware accelleration for all channels
+ *
+ */
+#define DSP_OPT_ULAW (1<<0)
+#define DSP_OPT_NOHARDWARE (1<<1)
+
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+
+#include "dsp_ecdis.h"
+
+extern int dsp_options;
+extern int dsp_debug;
+extern int dsp_poll;
+extern int dsp_tics;
+extern spinlock_t dsp_lock;
+extern struct work_struct dsp_workq;
+extern u32 dsp_poll_diff; /* calculated fix-comma corrected poll value */
+
+/***************
+ * audio stuff *
+ ***************/
+
+extern s32 dsp_audio_alaw_to_s32[256];
+extern s32 dsp_audio_ulaw_to_s32[256];
+extern s32 *dsp_audio_law_to_s32;
+extern u8 dsp_audio_s16_to_law[65536];
+extern u8 dsp_audio_alaw_to_ulaw[256];
+extern u8 dsp_audio_mix_law[65536];
+extern u8 dsp_audio_seven2law[128];
+extern u8 dsp_audio_law2seven[256];
+extern void dsp_audio_generate_law_tables(void);
+extern void dsp_audio_generate_s2law_table(void);
+extern void dsp_audio_generate_seven(void);
+extern void dsp_audio_generate_mix_table(void);
+extern void dsp_audio_generate_ulaw_samples(void);
+extern void dsp_audio_generate_volume_changes(void);
+extern u8 dsp_silence;
+
+
+/*************
+ * cmx stuff *
+ *************/
+
+#define MAX_POLL 256 /* maximum number of send-chunks */
+
+#define CMX_BUFF_SIZE 0x8000 /* must be 2**n (0x1000 about 1/2 second) */
+#define CMX_BUFF_HALF 0x4000 /* CMX_BUFF_SIZE / 2 */
+#define CMX_BUFF_MASK 0x7fff /* CMX_BUFF_SIZE - 1 */
+
+/* how many seconds will we check the lowest delay until the jitter buffer
+ is reduced by that delay */
+#define MAX_SECONDS_JITTER_CHECK 5
+
+extern struct timer_list dsp_spl_tl;
+extern u32 dsp_spl_jiffies;
+
+/* the structure of conferences:
+ *
+ * each conference has a unique number, given by user space.
+ * the conferences are linked in a chain.
+ * each conference has members linked in a chain.
+ * each dsplayer points to a member, each member points to a dsplayer.
+ */
+
+/* all members within a conference (this is linked 1:1 with the dsp) */
+struct dsp;
+struct dsp_conf_member {
+ struct list_head list;
+ struct dsp *dsp;
+};
+
+/* the list of all conferences */
+struct dsp_conf {
+ struct list_head list;
+ u32 id;
+ /* all cmx stacks with the same ID are
+ connected */
+ struct list_head mlist;
+ int software; /* conf is processed by software */
+ int hardware; /* conf is processed by hardware */
+ /* note: if both unset, has only one member */
+};
+
+
+/**************
+ * DTMF stuff *
+ **************/
+
+#define DSP_DTMF_NPOINTS 102
+
+#define ECHOCAN_BUFLEN (4*128)
+
+struct dsp_dtmf {
+ int treshold; /* above this is dtmf (square of) */
+ int software; /* dtmf uses software decoding */
+ int hardware; /* dtmf uses hardware decoding */
+ int size; /* number of bytes in buffer */
+ signed short buffer[DSP_DTMF_NPOINTS];
+ /* buffers one full dtmf frame */
+ u8 lastwhat, lastdigit;
+ int count;
+ u8 digits[16]; /* just the dtmf result */
+};
+
+
+/******************
+ * pipeline stuff *
+ ******************/
+struct dsp_pipeline {
+ rwlock_t lock;
+ struct list_head list;
+ int inuse;
+};
+
+/***************
+ * tones stuff *
+ ***************/
+
+struct dsp_tone {
+ int software; /* tones are generated by software */
+ int hardware; /* tones are generated by hardware */
+ int tone;
+ void *pattern;
+ int count;
+ int index;
+ struct timer_list tl;
+};
+
+/*****************
+ * general stuff *
+ *****************/
+
+struct dsp {
+ struct list_head list;
+ struct mISDNchannel ch;
+ struct mISDNchannel *up;
+ unsigned char name[64];
+ int b_active;
+ int echo; /* echo is enabled */
+ int rx_disabled; /* what the user wants */
+ int rx_is_off; /* what the card is */
+ int tx_mix;
+ struct dsp_tone tone;
+ struct dsp_dtmf dtmf;
+ int tx_volume, rx_volume;
+
+ /* queue for sending frames */
+ struct work_struct workq;
+ struct sk_buff_head sendq;
+ int hdlc; /* if mode is hdlc */
+ int data_pending; /* currently an unconfirmed frame */
+
+ /* conference stuff */
+ u32 conf_id;
+ struct dsp_conf *conf;
+ struct dsp_conf_member
+ *member;
+
+ /* buffer stuff */
+ int rx_W; /* current write pos for data without timestamp */
+ int rx_R; /* current read pos for transmit clock */
+ int rx_init; /* if set, pointers will be adjusted first */
+ int tx_W; /* current write pos for transmit data */
+ int tx_R; /* current read pos for transmit clock */
+ int rx_delay[MAX_SECONDS_JITTER_CHECK];
+ int tx_delay[MAX_SECONDS_JITTER_CHECK];
+ u8 tx_buff[CMX_BUFF_SIZE];
+ u8 rx_buff[CMX_BUFF_SIZE];
+ int last_tx; /* if set, we transmitted last poll interval */
+ int cmx_delay; /* initial delay of buffers,
+ or 0 for dynamic jitter buffer */
+ int tx_dejitter; /* if set, dejitter tx buffer */
+ int tx_data; /* enables tx-data of CMX to upper layer */
+
+ /* hardware stuff */
+ struct dsp_features features;
+ int features_rx_off; /* set if rx_off is featured */
+ int pcm_slot_rx; /* current PCM slot (or -1) */
+ int pcm_bank_rx;
+ int pcm_slot_tx;
+ int pcm_bank_tx;
+ int hfc_conf; /* unique id of current conference (or -1) */
+
+ /* encryption stuff */
+ int bf_enable;
+ u32 bf_p[18];
+ u32 bf_s[1024];
+ int bf_crypt_pos;
+ u8 bf_data_in[9];
+ u8 bf_crypt_out[9];
+ int bf_decrypt_in_pos;
+ int bf_decrypt_out_pos;
+ u8 bf_crypt_inring[16];
+ u8 bf_data_out[9];
+ int bf_sync;
+
+ struct dsp_pipeline
+ pipeline;
+};
+
+/* functions */
+
+extern void dsp_change_volume(struct sk_buff *skb, int volume);
+
+extern struct list_head dsp_ilist;
+extern struct list_head conf_ilist;
+extern void dsp_cmx_debug(struct dsp *dsp);
+extern void dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp);
+extern int dsp_cmx_conf(struct dsp *dsp, u32 conf_id);
+extern void dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb);
+extern void dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb);
+extern void dsp_cmx_send(void *arg);
+extern void dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb);
+extern int dsp_cmx_del_conf_member(struct dsp *dsp);
+extern int dsp_cmx_del_conf(struct dsp_conf *conf);
+
+extern void dsp_dtmf_goertzel_init(struct dsp *dsp);
+extern void dsp_dtmf_hardware(struct dsp *dsp);
+extern u8 *dsp_dtmf_goertzel_decode(struct dsp *dsp, u8 *data, int len,
+ int fmt);
+
+extern int dsp_tone(struct dsp *dsp, int tone);
+extern void dsp_tone_copy(struct dsp *dsp, u8 *data, int len);
+extern void dsp_tone_timeout(void *arg);
+
+extern void dsp_bf_encrypt(struct dsp *dsp, u8 *data, int len);
+extern void dsp_bf_decrypt(struct dsp *dsp, u8 *data, int len);
+extern int dsp_bf_init(struct dsp *dsp, const u8 *key, unsigned int keylen);
+extern void dsp_bf_cleanup(struct dsp *dsp);
+
+extern int dsp_pipeline_module_init(void);
+extern void dsp_pipeline_module_exit(void);
+extern int dsp_pipeline_init(struct dsp_pipeline *pipeline);
+extern void dsp_pipeline_destroy(struct dsp_pipeline *pipeline);
+extern int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg);
+extern void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data,
+ int len);
+extern void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data,
+ int len);
+
--- /dev/null
+/*
+ * Audio support data for mISDN_dsp.
+ *
+ * Copyright 2002/2003 by Andreas Eversberg (jolly@eversberg.eu)
+ * Rewritten by Peter
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "core.h"
+#include "dsp.h"
+
+/* ulaw[unsigned char] -> signed 16-bit */
+s32 dsp_audio_ulaw_to_s32[256];
+/* alaw[unsigned char] -> signed 16-bit */
+s32 dsp_audio_alaw_to_s32[256];
+
+s32 *dsp_audio_law_to_s32;
+EXPORT_SYMBOL(dsp_audio_law_to_s32);
+
+/* signed 16-bit -> law */
+u8 dsp_audio_s16_to_law[65536];
+EXPORT_SYMBOL(dsp_audio_s16_to_law);
+
+/* alaw -> ulaw */
+u8 dsp_audio_alaw_to_ulaw[256];
+/* ulaw -> alaw */
+u8 dsp_audio_ulaw_to_alaw[256];
+u8 dsp_silence;
+
+
+/*****************************************************
+ * generate table for conversion of s16 to alaw/ulaw *
+ *****************************************************/
+
+#define AMI_MASK 0x55
+
+static inline unsigned char linear2alaw(short int linear)
+{
+ int mask;
+ int seg;
+ int pcm_val;
+ static int seg_end[8] = {
+ 0xFF, 0x1FF, 0x3FF, 0x7FF, 0xFFF, 0x1FFF, 0x3FFF, 0x7FFF
+ };
+
+ pcm_val = linear;
+ if (pcm_val >= 0) {
+ /* Sign (7th) bit = 1 */
+ mask = AMI_MASK | 0x80;
+ } else {
+ /* Sign bit = 0 */
+ mask = AMI_MASK;
+ pcm_val = -pcm_val;
+ }
+
+ /* Convert the scaled magnitude to segment number. */
+ for (seg = 0; seg < 8; seg++) {
+ if (pcm_val <= seg_end[seg])
+ break;
+ }
+ /* Combine the sign, segment, and quantization bits. */
+ return ((seg << 4) |
+ ((pcm_val >> ((seg) ? (seg + 3) : 4)) & 0x0F)) ^ mask;
+}
+
+
+static inline short int alaw2linear(unsigned char alaw)
+{
+ int i;
+ int seg;
+
+ alaw ^= AMI_MASK;
+ i = ((alaw & 0x0F) << 4) + 8 /* rounding error */;
+ seg = (((int) alaw & 0x70) >> 4);
+ if (seg)
+ i = (i + 0x100) << (seg - 1);
+ return (short int) ((alaw & 0x80) ? i : -i);
+}
+
+static inline short int ulaw2linear(unsigned char ulaw)
+{
+ short mu, e, f, y;
+ static short etab[] = {0, 132, 396, 924, 1980, 4092, 8316, 16764};
+
+ mu = 255 - ulaw;
+ e = (mu & 0x70) / 16;
+ f = mu & 0x0f;
+ y = f * (1 << (e + 3));
+ y += etab[e];
+ if (mu & 0x80)
+ y = -y;
+ return y;
+}
+
+#define BIAS 0x84 /*!< define the add-in bias for 16 bit samples */
+
+static unsigned char linear2ulaw(short sample)
+{
+ static int exp_lut[256] = {
+ 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7};
+ int sign, exponent, mantissa;
+ unsigned char ulawbyte;
+
+ /* Get the sample into sign-magnitude. */
+ sign = (sample >> 8) & 0x80; /* set aside the sign */
+ if (sign != 0)
+ sample = -sample; /* get magnitude */
+
+ /* Convert from 16 bit linear to ulaw. */
+ sample = sample + BIAS;
+ exponent = exp_lut[(sample >> 7) & 0xFF];
+ mantissa = (sample >> (exponent + 3)) & 0x0F;
+ ulawbyte = ~(sign | (exponent << 4) | mantissa);
+
+ return ulawbyte;
+}
+
+static int reverse_bits(int i)
+{
+ int z, j;
+ z = 0;
+
+ for (j = 0; j < 8; j++) {
+ if ((i & (1 << j)) != 0)
+ z |= 1 << (7 - j);
+ }
+ return z;
+}
+
+
+void dsp_audio_generate_law_tables(void)
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ dsp_audio_alaw_to_s32[i] = alaw2linear(reverse_bits(i));
+
+ for (i = 0; i < 256; i++)
+ dsp_audio_ulaw_to_s32[i] = ulaw2linear(reverse_bits(i));
+
+ for (i = 0; i < 256; i++) {
+ dsp_audio_alaw_to_ulaw[i] =
+ linear2ulaw(dsp_audio_alaw_to_s32[i]);
+ dsp_audio_ulaw_to_alaw[i] =
+ linear2alaw(dsp_audio_ulaw_to_s32[i]);
+ }
+}
+
+void
+dsp_audio_generate_s2law_table(void)
+{
+ int i;
+
+ if (dsp_options & DSP_OPT_ULAW) {
+ /* generating ulaw-table */
+ for (i = -32768; i < 32768; i++) {
+ dsp_audio_s16_to_law[i & 0xffff] =
+ reverse_bits(linear2ulaw(i));
+ }
+ } else {
+ /* generating alaw-table */
+ for (i = -32768; i < 32768; i++) {
+ dsp_audio_s16_to_law[i & 0xffff] =
+ reverse_bits(linear2alaw(i));
+ }
+ }
+}
+
+
+/*
+ * the seven bit sample is the number of every second alaw-sample ordered by
+ * aplitude. 0x00 is negative, 0x7f is positive amplitude.
+ */
+u8 dsp_audio_seven2law[128];
+u8 dsp_audio_law2seven[256];
+
+/********************************************************************
+ * generate table for conversion law from/to 7-bit alaw-like sample *
+ ********************************************************************/
+
+void
+dsp_audio_generate_seven(void)
+{
+ int i, j, k;
+ u8 spl;
+ u8 sorted_alaw[256];
+
+ /* generate alaw table, sorted by the linear value */
+ for (i = 0; i < 256; i++) {
+ j = 0;
+ for (k = 0; k < 256; k++) {
+ if (dsp_audio_alaw_to_s32[k]
+ < dsp_audio_alaw_to_s32[i]) {
+ j++;
+ }
+ }
+ sorted_alaw[j] = i;
+ }
+
+ /* generate tabels */
+ for (i = 0; i < 256; i++) {
+ /* spl is the source: the law-sample (converted to alaw) */
+ spl = i;
+ if (dsp_options & DSP_OPT_ULAW)
+ spl = dsp_audio_ulaw_to_alaw[i];
+ /* find the 7-bit-sample */
+ for (j = 0; j < 256; j++) {
+ if (sorted_alaw[j] == spl)
+ break;
+ }
+ /* write 7-bit audio value */
+ dsp_audio_law2seven[i] = j >> 1;
+ }
+ for (i = 0; i < 128; i++) {
+ spl = sorted_alaw[i << 1];
+ if (dsp_options & DSP_OPT_ULAW)
+ spl = dsp_audio_alaw_to_ulaw[spl];
+ dsp_audio_seven2law[i] = spl;
+ }
+}
+
+
+/* mix 2*law -> law */
+u8 dsp_audio_mix_law[65536];
+
+/******************************************************
+ * generate mix table to mix two law samples into one *
+ ******************************************************/
+
+void
+dsp_audio_generate_mix_table(void)
+{
+ int i, j;
+ s32 sample;
+
+ i = 0;
+ while (i < 256) {
+ j = 0;
+ while (j < 256) {
+ sample = dsp_audio_law_to_s32[i];
+ sample += dsp_audio_law_to_s32[j];
+ if (sample > 32767)
+ sample = 32767;
+ if (sample < -32768)
+ sample = -32768;
+ dsp_audio_mix_law[(i<<8)|j] =
+ dsp_audio_s16_to_law[sample & 0xffff];
+ j++;
+ }
+ i++;
+ }
+}
+
+
+/*************************************
+ * generate different volume changes *
+ *************************************/
+
+static u8 dsp_audio_reduce8[256];
+static u8 dsp_audio_reduce7[256];
+static u8 dsp_audio_reduce6[256];
+static u8 dsp_audio_reduce5[256];
+static u8 dsp_audio_reduce4[256];
+static u8 dsp_audio_reduce3[256];
+static u8 dsp_audio_reduce2[256];
+static u8 dsp_audio_reduce1[256];
+static u8 dsp_audio_increase1[256];
+static u8 dsp_audio_increase2[256];
+static u8 dsp_audio_increase3[256];
+static u8 dsp_audio_increase4[256];
+static u8 dsp_audio_increase5[256];
+static u8 dsp_audio_increase6[256];
+static u8 dsp_audio_increase7[256];
+static u8 dsp_audio_increase8[256];
+
+static u8 *dsp_audio_volume_change[16] = {
+ dsp_audio_reduce8,
+ dsp_audio_reduce7,
+ dsp_audio_reduce6,
+ dsp_audio_reduce5,
+ dsp_audio_reduce4,
+ dsp_audio_reduce3,
+ dsp_audio_reduce2,
+ dsp_audio_reduce1,
+ dsp_audio_increase1,
+ dsp_audio_increase2,
+ dsp_audio_increase3,
+ dsp_audio_increase4,
+ dsp_audio_increase5,
+ dsp_audio_increase6,
+ dsp_audio_increase7,
+ dsp_audio_increase8,
+};
+
+void
+dsp_audio_generate_volume_changes(void)
+{
+ register s32 sample;
+ int i;
+ int num[] = { 110, 125, 150, 175, 200, 300, 400, 500 };
+ int denum[] = { 100, 100, 100, 100, 100, 100, 100, 100 };
+
+ i = 0;
+ while (i < 256) {
+ dsp_audio_reduce8[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[7] / num[7]) & 0xffff];
+ dsp_audio_reduce7[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[6] / num[6]) & 0xffff];
+ dsp_audio_reduce6[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[5] / num[5]) & 0xffff];
+ dsp_audio_reduce5[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[4] / num[4]) & 0xffff];
+ dsp_audio_reduce4[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[3] / num[3]) & 0xffff];
+ dsp_audio_reduce3[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[2] / num[2]) & 0xffff];
+ dsp_audio_reduce2[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[1] / num[1]) & 0xffff];
+ dsp_audio_reduce1[i] = dsp_audio_s16_to_law[
+ (dsp_audio_law_to_s32[i] * denum[0] / num[0]) & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[0] / denum[0];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase1[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[1] / denum[1];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase2[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[2] / denum[2];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase3[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[3] / denum[3];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase4[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[4] / denum[4];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase5[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[5] / denum[5];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase6[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[6] / denum[6];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase7[i] = dsp_audio_s16_to_law[sample & 0xffff];
+ sample = dsp_audio_law_to_s32[i] * num[7] / denum[7];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ dsp_audio_increase8[i] = dsp_audio_s16_to_law[sample & 0xffff];
+
+ i++;
+ }
+}
+
+
+/**************************************
+ * change the volume of the given skb *
+ **************************************/
+
+/* this is a helper function for changing volume of skb. the range may be
+ * -8 to 8, which is a shift to the power of 2. 0 == no volume, 3 == volume*8
+ */
+void
+dsp_change_volume(struct sk_buff *skb, int volume)
+{
+ u8 *volume_change;
+ int i, ii;
+ u8 *p;
+ int shift;
+
+ if (volume == 0)
+ return;
+
+ /* get correct conversion table */
+ if (volume < 0) {
+ shift = volume + 8;
+ if (shift < 0)
+ shift = 0;
+ } else {
+ shift = volume + 7;
+ if (shift > 15)
+ shift = 15;
+ }
+ volume_change = dsp_audio_volume_change[shift];
+ i = 0;
+ ii = skb->len;
+ p = skb->data;
+ /* change volume */
+ while (i < ii) {
+ *p = volume_change[*p];
+ p++;
+ i++;
+ }
+}
+
--- /dev/null
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * biquad.h - General telephony bi-quad section routines (currently this just
+ * handles canonic/type 2 form)
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2001 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+struct biquad2_state {
+ int32_t gain;
+ int32_t a1;
+ int32_t a2;
+ int32_t b1;
+ int32_t b2;
+
+ int32_t z1;
+ int32_t z2;
+};
+
+static inline void biquad2_init(struct biquad2_state *bq,
+ int32_t gain, int32_t a1, int32_t a2, int32_t b1, int32_t b2)
+{
+ bq->gain = gain;
+ bq->a1 = a1;
+ bq->a2 = a2;
+ bq->b1 = b1;
+ bq->b2 = b2;
+
+ bq->z1 = 0;
+ bq->z2 = 0;
+}
+
+static inline int16_t biquad2(struct biquad2_state *bq, int16_t sample)
+{
+ int32_t y;
+ int32_t z0;
+
+ z0 = sample*bq->gain + bq->z1*bq->a1 + bq->z2*bq->a2;
+ y = z0 + bq->z1*bq->b1 + bq->z2*bq->b2;
+
+ bq->z2 = bq->z1;
+ bq->z1 = z0 >> 15;
+ y >>= 15;
+ return y;
+}
--- /dev/null
+/*
+ * Blowfish encryption/decryption for mISDN_dsp.
+ *
+ * Copyright Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "core.h"
+#include "dsp.h"
+
+/*
+ * how to encode a sample stream to 64-bit blocks that will be encryped
+ *
+ * first of all, data is collected until a block of 9 samples are received.
+ * of course, a packet may have much more than 9 sample, but is may have
+ * not excacly the multiple of 9 samples. if there is a rest, the next
+ * received data will complete the block.
+ *
+ * the block is then converted to 9 uLAW samples without the least sigificant
+ * bit. the result is a 7-bit encoded sample.
+ *
+ * the samples will be reoganised to form 8 bytes of data:
+ * (5(6) means: encoded sample no. 5, bit 6)
+ *
+ * 0(6) 0(5) 0(4) 0(3) 0(2) 0(1) 0(0) 1(6)
+ * 1(5) 1(4) 1(3) 1(2) 1(1) 1(0) 2(6) 2(5)
+ * 2(4) 2(3) 2(2) 2(1) 2(0) 3(6) 3(5) 3(4)
+ * 3(3) 3(2) 3(1) 3(0) 4(6) 4(5) 4(4) 4(3)
+ * 4(2) 4(1) 4(0) 5(6) 5(5) 5(4) 5(3) 5(2)
+ * 5(1) 5(0) 6(6) 6(5) 6(4) 6(3) 6(2) 6(1)
+ * 6(0) 7(6) 7(5) 7(4) 7(3) 7(2) 7(1) 7(0)
+ * 8(6) 8(5) 8(4) 8(3) 8(2) 8(1) 8(0)
+ *
+ * the missing bit 0 of the last byte is filled with some
+ * random noise, to fill all 8 bytes.
+ *
+ * the 8 bytes will be encrypted using blowfish.
+ *
+ * the result will be converted into 9 bytes. the bit 7 is used for
+ * checksumme (CS) for sync (0, 1) and for the last bit:
+ * (5(6) means: crypted byte 5, bit 6)
+ *
+ * 1 0(7) 0(6) 0(5) 0(4) 0(3) 0(2) 0(1)
+ * 0 0(0) 1(7) 1(6) 1(5) 1(4) 1(3) 1(2)
+ * 0 1(1) 1(0) 2(7) 2(6) 2(5) 2(4) 2(3)
+ * 0 2(2) 2(1) 2(0) 3(7) 3(6) 3(5) 3(4)
+ * 0 3(3) 3(2) 3(1) 3(0) 4(7) 4(6) 4(5)
+ * CS 4(4) 4(3) 4(2) 4(1) 4(0) 5(7) 5(6)
+ * CS 5(5) 5(4) 5(3) 5(2) 5(1) 5(0) 6(7)
+ * CS 6(6) 6(5) 6(4) 6(3) 6(2) 6(1) 6(0)
+ * 7(0) 7(6) 7(5) 7(4) 7(3) 7(2) 7(1) 7(0)
+ *
+ * the checksum is used to detect transmission errors and frame drops.
+ *
+ * synchronisation of received block is done by shifting the upper bit of each
+ * byte (bit 7) to a shift register. if the rigister has the first five bits
+ * (10000), this is used to find the sync. only if sync has been found, the
+ * current block of 9 received bytes are decrypted. before that the check
+ * sum is calculated. if it is incorrect the block is dropped.
+ * this will avoid loud noise due to corrupt encrypted data.
+ *
+ * if the last block is corrupt, the current decoded block is repeated
+ * until a valid block has been received.
+ */
+
+/*
+ * some blowfish parts are taken from the
+ * crypto-api for faster implementation
+ */
+
+struct bf_ctx {
+ u32 p[18];
+ u32 s[1024];
+};
+
+static const u32 bf_pbox[16 + 2] = {
+ 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+ 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+ 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+ 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+ 0x9216d5d9, 0x8979fb1b,
+};
+
+static const u32 bf_sbox[256 * 4] = {
+ 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
+ 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+ 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+ 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+ 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
+ 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+ 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
+ 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+ 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+ 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+ 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
+ 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+ 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
+ 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+ 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+ 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+ 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
+ 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+ 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
+ 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+ 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+ 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+ 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
+ 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+ 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
+ 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+ 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+ 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+ 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
+ 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+ 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
+ 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+ 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+ 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+ 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
+ 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+ 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
+ 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+ 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+ 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+ 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
+ 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+ 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
+ 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+ 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+ 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+ 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
+ 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+ 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
+ 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+ 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+ 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+ 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
+ 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+ 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
+ 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+ 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+ 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+ 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
+ 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+ 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
+ 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+ 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+ 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+ 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
+ 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+ 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+ 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+ 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
+ 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+ 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
+ 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+ 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+ 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+ 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
+ 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+ 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
+ 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+ 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+ 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+ 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
+ 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+ 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
+ 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+ 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+ 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+ 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
+ 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+ 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
+ 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+ 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+ 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+ 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
+ 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+ 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
+ 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+ 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+ 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+ 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
+ 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+ 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
+ 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+ 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+ 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+ 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
+ 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+ 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
+ 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+ 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+ 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+ 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
+ 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+ 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
+ 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+ 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+ 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+ 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
+ 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+ 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
+ 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+ 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+ 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+ 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
+ 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+ 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
+ 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+ 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+ 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+ 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
+ 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+ 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+ 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+ 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
+ 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+ 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
+ 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+ 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+ 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+ 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
+ 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+ 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
+ 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+ 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+ 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+ 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
+ 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+ 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
+ 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+ 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+ 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+ 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
+ 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+ 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
+ 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+ 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+ 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+ 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
+ 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+ 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
+ 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+ 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+ 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+ 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
+ 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+ 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
+ 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+ 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+ 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+ 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
+ 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+ 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
+ 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+ 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+ 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+ 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
+ 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+ 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
+ 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+ 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+ 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+ 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
+ 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+ 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
+ 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+ 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+ 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+ 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
+ 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+ 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
+ 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+ 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+ 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+ 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
+ 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+ 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+ 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+ 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
+ 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+ 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
+ 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+ 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+ 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+ 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
+ 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+ 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
+ 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+ 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+ 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+ 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
+ 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+ 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
+ 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+ 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+ 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+ 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
+ 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+ 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
+ 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+ 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+ 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+ 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
+ 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+ 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
+ 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+ 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+ 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+ 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
+ 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+ 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
+ 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+ 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+ 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+ 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
+ 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+ 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
+ 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+ 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+ 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+ 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
+ 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+ 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
+ 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+ 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+ 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+ 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
+ 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+ 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
+ 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+ 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+ 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+ 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
+ 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+ 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
+ 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+ 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+ 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
+};
+
+/*
+ * Round loop unrolling macros, S is a pointer to a S-Box array
+ * organized in 4 unsigned longs at a row.
+ */
+#define GET32_3(x) (((x) & 0xff))
+#define GET32_2(x) (((x) >> (8)) & (0xff))
+#define GET32_1(x) (((x) >> (16)) & (0xff))
+#define GET32_0(x) (((x) >> (24)) & (0xff))
+
+#define bf_F(x) (((S[GET32_0(x)] + S[256 + GET32_1(x)]) ^ \
+ S[512 + GET32_2(x)]) + S[768 + GET32_3(x)])
+
+#define EROUND(a, b, n) do { b ^= P[n]; a ^= bf_F(b); } while (0)
+#define DROUND(a, b, n) do { a ^= bf_F(b); b ^= P[n]; } while (0)
+
+
+/*
+ * encrypt isdn data frame
+ * every block with 9 samples is encrypted
+ */
+void
+dsp_bf_encrypt(struct dsp *dsp, u8 *data, int len)
+{
+ int i = 0, j = dsp->bf_crypt_pos;
+ u8 *bf_data_in = dsp->bf_data_in;
+ u8 *bf_crypt_out = dsp->bf_crypt_out;
+ u32 *P = dsp->bf_p;
+ u32 *S = dsp->bf_s;
+ u32 yl, yr;
+ u32 cs;
+ u8 nibble;
+
+ while (i < len) {
+ /* collect a block of 9 samples */
+ if (j < 9) {
+ bf_data_in[j] = *data;
+ *data++ = bf_crypt_out[j++];
+ i++;
+ continue;
+ }
+ j = 0;
+ /* transcode 9 samples xlaw to 8 bytes */
+ yl = dsp_audio_law2seven[bf_data_in[0]];
+ yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[1]];
+ yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[2]];
+ yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[3]];
+ nibble = dsp_audio_law2seven[bf_data_in[4]];
+ yr = nibble;
+ yl = (yl<<4) | (nibble>>3);
+ yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[5]];
+ yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[6]];
+ yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[7]];
+ yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[8]];
+ yr = (yr<<1) | (bf_data_in[0] & 1);
+
+ /* fill unused bit with random noise of audio input */
+ /* encrypt */
+
+ EROUND(yr, yl, 0);
+ EROUND(yl, yr, 1);
+ EROUND(yr, yl, 2);
+ EROUND(yl, yr, 3);
+ EROUND(yr, yl, 4);
+ EROUND(yl, yr, 5);
+ EROUND(yr, yl, 6);
+ EROUND(yl, yr, 7);
+ EROUND(yr, yl, 8);
+ EROUND(yl, yr, 9);
+ EROUND(yr, yl, 10);
+ EROUND(yl, yr, 11);
+ EROUND(yr, yl, 12);
+ EROUND(yl, yr, 13);
+ EROUND(yr, yl, 14);
+ EROUND(yl, yr, 15);
+ yl ^= P[16];
+ yr ^= P[17];
+
+ /* calculate 3-bit checksumme */
+ cs = yl ^ (yl>>3) ^ (yl>>6) ^ (yl>>9) ^ (yl>>12) ^ (yl>>15)
+ ^ (yl>>18) ^ (yl>>21) ^ (yl>>24) ^ (yl>>27) ^ (yl>>30)
+ ^ (yr<<2) ^ (yr>>1) ^ (yr>>4) ^ (yr>>7) ^ (yr>>10)
+ ^ (yr>>13) ^ (yr>>16) ^ (yr>>19) ^ (yr>>22) ^ (yr>>25)
+ ^ (yr>>28) ^ (yr>>31);
+
+ /*
+ * transcode 8 crypted bytes to 9 data bytes with sync
+ * and checksum information
+ */
+ bf_crypt_out[0] = (yl>>25) | 0x80;
+ bf_crypt_out[1] = (yl>>18) & 0x7f;
+ bf_crypt_out[2] = (yl>>11) & 0x7f;
+ bf_crypt_out[3] = (yl>>4) & 0x7f;
+ bf_crypt_out[4] = ((yl<<3) & 0x78) | ((yr>>29) & 0x07);
+ bf_crypt_out[5] = ((yr>>22) & 0x7f) | ((cs<<5) & 0x80);
+ bf_crypt_out[6] = ((yr>>15) & 0x7f) | ((cs<<6) & 0x80);
+ bf_crypt_out[7] = ((yr>>8) & 0x7f) | (cs<<7);
+ bf_crypt_out[8] = yr;
+ }
+
+ /* write current count */
+ dsp->bf_crypt_pos = j;
+
+}
+
+
+/*
+ * decrypt isdn data frame
+ * every block with 9 bytes is decrypted
+ */
+void
+dsp_bf_decrypt(struct dsp *dsp, u8 *data, int len)
+{
+ int i = 0;
+ u8 j = dsp->bf_decrypt_in_pos;
+ u8 k = dsp->bf_decrypt_out_pos;
+ u8 *bf_crypt_inring = dsp->bf_crypt_inring;
+ u8 *bf_data_out = dsp->bf_data_out;
+ u16 sync = dsp->bf_sync;
+ u32 *P = dsp->bf_p;
+ u32 *S = dsp->bf_s;
+ u32 yl, yr;
+ u8 nibble;
+ u8 cs, cs0, cs1, cs2;
+
+ while (i < len) {
+ /*
+ * shift upper bit and rotate data to buffer ring
+ * send current decrypted data
+ */
+ sync = (sync<<1) | ((*data)>>7);
+ bf_crypt_inring[j++ & 15] = *data;
+ *data++ = bf_data_out[k++];
+ i++;
+ if (k == 9)
+ k = 0; /* repeat if no sync has been found */
+ /* check if not in sync */
+ if ((sync&0x1f0) != 0x100)
+ continue;
+ j -= 9;
+ /* transcode receive data to 64 bit block of encrypted data */
+ yl = bf_crypt_inring[j++ & 15];
+ yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */
+ yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */
+ yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */
+ nibble = bf_crypt_inring[j++ & 15]; /* bit7 = 0 */
+ yr = nibble;
+ yl = (yl<<4) | (nibble>>3);
+ cs2 = bf_crypt_inring[j++ & 15];
+ yr = (yr<<7) | (cs2 & 0x7f);
+ cs1 = bf_crypt_inring[j++ & 15];
+ yr = (yr<<7) | (cs1 & 0x7f);
+ cs0 = bf_crypt_inring[j++ & 15];
+ yr = (yr<<7) | (cs0 & 0x7f);
+ yr = (yr<<8) | bf_crypt_inring[j++ & 15];
+
+ /* calculate 3-bit checksumme */
+ cs = yl ^ (yl>>3) ^ (yl>>6) ^ (yl>>9) ^ (yl>>12) ^ (yl>>15)
+ ^ (yl>>18) ^ (yl>>21) ^ (yl>>24) ^ (yl>>27) ^ (yl>>30)
+ ^ (yr<<2) ^ (yr>>1) ^ (yr>>4) ^ (yr>>7) ^ (yr>>10)
+ ^ (yr>>13) ^ (yr>>16) ^ (yr>>19) ^ (yr>>22) ^ (yr>>25)
+ ^ (yr>>28) ^ (yr>>31);
+
+ /* check if frame is valid */
+ if ((cs&0x7) != (((cs2>>5)&4) | ((cs1>>6)&2) | (cs0 >> 7))) {
+ if (dsp_debug & DEBUG_DSP_BLOWFISH)
+ printk(KERN_DEBUG
+ "DSP BLOWFISH: received corrupt frame, "
+ "checksumme is not correct\n");
+ continue;
+ }
+
+ /* decrypt */
+ yr ^= P[17];
+ yl ^= P[16];
+ DROUND(yl, yr, 15);
+ DROUND(yr, yl, 14);
+ DROUND(yl, yr, 13);
+ DROUND(yr, yl, 12);
+ DROUND(yl, yr, 11);
+ DROUND(yr, yl, 10);
+ DROUND(yl, yr, 9);
+ DROUND(yr, yl, 8);
+ DROUND(yl, yr, 7);
+ DROUND(yr, yl, 6);
+ DROUND(yl, yr, 5);
+ DROUND(yr, yl, 4);
+ DROUND(yl, yr, 3);
+ DROUND(yr, yl, 2);
+ DROUND(yl, yr, 1);
+ DROUND(yr, yl, 0);
+
+ /* transcode 8 crypted bytes to 9 sample bytes */
+ bf_data_out[0] = dsp_audio_seven2law[(yl>>25) & 0x7f];
+ bf_data_out[1] = dsp_audio_seven2law[(yl>>18) & 0x7f];
+ bf_data_out[2] = dsp_audio_seven2law[(yl>>11) & 0x7f];
+ bf_data_out[3] = dsp_audio_seven2law[(yl>>4) & 0x7f];
+ bf_data_out[4] = dsp_audio_seven2law[((yl<<3) & 0x78) |
+ ((yr>>29) & 0x07)];
+
+ bf_data_out[5] = dsp_audio_seven2law[(yr>>22) & 0x7f];
+ bf_data_out[6] = dsp_audio_seven2law[(yr>>15) & 0x7f];
+ bf_data_out[7] = dsp_audio_seven2law[(yr>>8) & 0x7f];
+ bf_data_out[8] = dsp_audio_seven2law[(yr>>1) & 0x7f];
+ k = 0; /* start with new decoded frame */
+ }
+
+ /* write current count and sync */
+ dsp->bf_decrypt_in_pos = j;
+ dsp->bf_decrypt_out_pos = k;
+ dsp->bf_sync = sync;
+}
+
+
+/* used to encrypt S and P boxes */
+static inline void
+encrypt_block(const u32 *P, const u32 *S, u32 *dst, u32 *src)
+{
+ u32 yl = src[0];
+ u32 yr = src[1];
+
+ EROUND(yr, yl, 0);
+ EROUND(yl, yr, 1);
+ EROUND(yr, yl, 2);
+ EROUND(yl, yr, 3);
+ EROUND(yr, yl, 4);
+ EROUND(yl, yr, 5);
+ EROUND(yr, yl, 6);
+ EROUND(yl, yr, 7);
+ EROUND(yr, yl, 8);
+ EROUND(yl, yr, 9);
+ EROUND(yr, yl, 10);
+ EROUND(yl, yr, 11);
+ EROUND(yr, yl, 12);
+ EROUND(yl, yr, 13);
+ EROUND(yr, yl, 14);
+ EROUND(yl, yr, 15);
+
+ yl ^= P[16];
+ yr ^= P[17];
+
+ dst[0] = yr;
+ dst[1] = yl;
+}
+
+/*
+ * initialize the dsp for encryption and decryption using the same key
+ * Calculates the blowfish S and P boxes for encryption and decryption.
+ * The margin of keylen must be 4-56 bytes.
+ * returns 0 if ok.
+ */
+int
+dsp_bf_init(struct dsp *dsp, const u8 *key, uint keylen)
+{
+ short i, j, count;
+ u32 data[2], temp;
+ u32 *P = (u32 *)dsp->bf_p;
+ u32 *S = (u32 *)dsp->bf_s;
+
+ if (keylen < 4 || keylen > 56)
+ return 1;
+
+ /* Set dsp states */
+ i = 0;
+ while (i < 9) {
+ dsp->bf_crypt_out[i] = 0xff;
+ dsp->bf_data_out[i] = dsp_silence;
+ i++;
+ }
+ dsp->bf_crypt_pos = 0;
+ dsp->bf_decrypt_in_pos = 0;
+ dsp->bf_decrypt_out_pos = 0;
+ dsp->bf_sync = 0x1ff;
+ dsp->bf_enable = 1;
+
+ /* Copy the initialization s-boxes */
+ for (i = 0, count = 0; i < 256; i++)
+ for (j = 0; j < 4; j++, count++)
+ S[count] = bf_sbox[count];
+
+ /* Set the p-boxes */
+ for (i = 0; i < 16 + 2; i++)
+ P[i] = bf_pbox[i];
+
+ /* Actual subkey generation */
+ for (j = 0, i = 0; i < 16 + 2; i++) {
+ temp = (((u32)key[j] << 24) |
+ ((u32)key[(j + 1) % keylen] << 16) |
+ ((u32)key[(j + 2) % keylen] << 8) |
+ ((u32)key[(j + 3) % keylen]));
+
+ P[i] = P[i] ^ temp;
+ j = (j + 4) % keylen;
+ }
+
+ data[0] = 0x00000000;
+ data[1] = 0x00000000;
+
+ for (i = 0; i < 16 + 2; i += 2) {
+ encrypt_block(P, S, data, data);
+
+ P[i] = data[0];
+ P[i + 1] = data[1];
+ }
+
+ for (i = 0; i < 4; i++) {
+ for (j = 0, count = i * 256; j < 256; j += 2, count += 2) {
+ encrypt_block(P, S, data, data);
+
+ S[count] = data[0];
+ S[count + 1] = data[1];
+ }
+ }
+
+ return 0;
+}
+
+
+/*
+ * turn encryption off
+ */
+void
+dsp_bf_cleanup(struct dsp *dsp)
+{
+ dsp->bf_enable = 0;
+}
--- /dev/null
+/*
+ * Audio crossconnecting/conferrencing (hardware level).
+ *
+ * Copyright 2002 by Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+/*
+ * The process of adding and removing parties to/from a conference:
+ *
+ * There is a chain of struct dsp_conf which has one or more members in a chain
+ * of struct dsp_conf_member.
+ *
+ * After a party is added, the conference is checked for hardware capability.
+ * Also if a party is removed, the conference is checked again.
+ *
+ * There are 3 different solutions: -1 = software, 0 = hardware-crossconnect
+ * 1-n = hardware-conference. The n will give the conference number.
+ *
+ * Depending on the change after removal or insertion of a party, hardware
+ * commands are given.
+ *
+ * The current solution is stored within the struct dsp_conf entry.
+ */
+
+/*
+ * HOW THE CMX WORKS:
+ *
+ * There are 3 types of interaction: One member is alone, in this case only
+ * data flow from upper to lower layer is done.
+ * Two members will also exchange their data so they are crossconnected.
+ * Three or more members will be added in a conference and will hear each
+ * other but will not receive their own speech (echo) if not enabled.
+ *
+ * Features of CMX are:
+ * - Crossconnecting or even conference, if more than two members are together.
+ * - Force mixing of transmit data with other crossconnect/conference members.
+ * - Echo generation to benchmark the delay of audio processing.
+ * - Use hardware to minimize cpu load, disable FIFO load and minimize delay.
+ * - Dejittering and clock generation.
+ *
+ * There are 2 buffers:
+ *
+ *
+ * RX-Buffer
+ * R W
+ * | |
+ * ----------------+-------------+-------------------
+ *
+ * The rx-buffer is a ring buffer used to store the received data for each
+ * individual member. This is only the case if data needs to be dejittered
+ * or in case of a conference where different clocks require reclocking.
+ * The transmit-clock (R) will read the buffer.
+ * If the clock overruns the write-pointer, we will have a buffer underrun.
+ * If the write pointer always has a certain distance from the transmit-
+ * clock, we will have a delay. The delay will dynamically be increased and
+ * reduced.
+ *
+ *
+ * TX-Buffer
+ * R W
+ * | |
+ * -----------------+--------+-----------------------
+ *
+ * The tx-buffer is a ring buffer to queue the transmit data from user space
+ * until it will be mixed or sent. There are two pointers, R and W. If the write
+ * pointer W would reach or overrun R, the buffer would overrun. In this case
+ * (some) data is dropped so that it will not overrun.
+ * Additionally a dynamic dejittering can be enabled. this allows data from
+ * user space that have jitter and different clock source.
+ *
+ *
+ * Clock:
+ *
+ * A Clock is not required, if the data source has exactly one clock. In this
+ * case the data source is forwarded to the destination.
+ *
+ * A Clock is required, because the data source
+ * - has multiple clocks.
+ * - has no usable clock due to jitter or packet loss (VoIP).
+ * In this case the system's clock is used. The clock resolution depends on
+ * the jiffie resolution.
+ *
+ * If a member joins a conference:
+ *
+ * - If a member joins, its rx_buff is set to silence and change read pointer
+ * to transmit clock.
+ *
+ * The procedure of received data from card is explained in cmx_receive.
+ * The procedure of received data from user space is explained in cmx_transmit.
+ * The procedure of transmit data to card is cmx_send.
+ *
+ *
+ * Interaction with other features:
+ *
+ * DTMF:
+ * DTMF decoding is done before the data is crossconnected.
+ *
+ * Volume change:
+ * Changing rx-volume is done before the data is crossconnected. The tx-volume
+ * must be changed whenever data is transmitted to the card by the cmx.
+ *
+ * Tones:
+ * If a tone is enabled, it will be processed whenever data is transmitted to
+ * the card. It will replace the tx-data from the user space.
+ * If tones are generated by hardware, this conference member is removed for
+ * this time.
+ *
+ * Disable rx-data:
+ * If cmx is realized in hardware, rx data will be disabled if requested by
+ * the upper layer. If dtmf decoding is done by software and enabled, rx data
+ * will not be diabled but blocked to the upper layer.
+ *
+ * HFC conference engine:
+ * If it is possible to realize all features using hardware, hardware will be
+ * used if not forbidden by control command. Disabling rx-data provides
+ * absolutely traffic free audio processing. (except for the quick 1-frame
+ * upload of a tone loop, only once for a new tone)
+ *
+ */
+
+/* delay.h is required for hw_lock.h */
+
+#include <linux/delay.h>
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "core.h"
+#include "dsp.h"
+/*
+ * debugging of multi party conference,
+ * by using conference even with two members
+ */
+
+/* #define CMX_CONF_DEBUG */
+
+/*#define CMX_DEBUG * massive read/write pointer output */
+/*#define CMX_TX_DEBUG * massive read/write on tx-buffer with content */
+
+static inline int
+count_list_member(struct list_head *head)
+{
+ int cnt = 0;
+ struct list_head *m;
+
+ list_for_each(m, head)
+ cnt++;
+ return cnt;
+}
+
+/*
+ * debug cmx memory structure
+ */
+void
+dsp_cmx_debug(struct dsp *dsp)
+{
+ struct dsp_conf *conf;
+ struct dsp_conf_member *member;
+ struct dsp *odsp;
+
+ printk(KERN_DEBUG "-----Current DSP\n");
+ list_for_each_entry(odsp, &dsp_ilist, list) {
+ printk(KERN_DEBUG "* %s echo=%d txmix=%d",
+ odsp->name, odsp->echo, odsp->tx_mix);
+ if (odsp->conf)
+ printk(" (Conf %d)", odsp->conf->id);
+ if (dsp == odsp)
+ printk(" *this*");
+ printk("\n");
+ }
+ printk(KERN_DEBUG "-----Current Conf:\n");
+ list_for_each_entry(conf, &conf_ilist, list) {
+ printk(KERN_DEBUG "* Conf %d (%p)\n", conf->id, conf);
+ list_for_each_entry(member, &conf->mlist, list) {
+ printk(KERN_DEBUG
+ " - member = %s (slot_tx %d, bank_tx %d, "
+ "slot_rx %d, bank_rx %d hfc_conf %d)%s\n",
+ member->dsp->name, member->dsp->pcm_slot_tx,
+ member->dsp->pcm_bank_tx, member->dsp->pcm_slot_rx,
+ member->dsp->pcm_bank_rx, member->dsp->hfc_conf,
+ (member->dsp == dsp) ? " *this*" : "");
+ }
+ }
+ printk(KERN_DEBUG "-----end\n");
+}
+
+/*
+ * search conference
+ */
+static struct dsp_conf *
+dsp_cmx_search_conf(u32 id)
+{
+ struct dsp_conf *conf;
+
+ if (!id) {
+ printk(KERN_WARNING "%s: conference ID is 0.\n", __func__);
+ return NULL;
+ }
+
+ /* search conference */
+ list_for_each_entry(conf, &conf_ilist, list)
+ if (conf->id == id)
+ return conf;
+
+ return NULL;
+}
+
+
+/*
+ * add member to conference
+ */
+static int
+dsp_cmx_add_conf_member(struct dsp *dsp, struct dsp_conf *conf)
+{
+ struct dsp_conf_member *member;
+
+ if (!conf || !dsp) {
+ printk(KERN_WARNING "%s: conf or dsp is 0.\n", __func__);
+ return -EINVAL;
+ }
+ if (dsp->member) {
+ printk(KERN_WARNING "%s: dsp is already member in a conf.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (dsp->conf) {
+ printk(KERN_WARNING "%s: dsp is already in a conf.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ member = kzalloc(sizeof(struct dsp_conf_member), GFP_ATOMIC);
+ if (!member) {
+ printk(KERN_ERR "kmalloc struct dsp_conf_member failed\n");
+ return -ENOMEM;
+ }
+ member->dsp = dsp;
+ /* clear rx buffer */
+ memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff));
+ dsp->rx_init = 1; /* rx_W and rx_R will be adjusted on first frame */
+ dsp->rx_W = 0;
+ dsp->rx_R = 0;
+
+ list_add_tail(&member->list, &conf->mlist);
+
+ dsp->conf = conf;
+ dsp->member = member;
+
+ return 0;
+}
+
+
+/*
+ * del member from conference
+ */
+int
+dsp_cmx_del_conf_member(struct dsp *dsp)
+{
+ struct dsp_conf_member *member;
+
+ if (!dsp) {
+ printk(KERN_WARNING "%s: dsp is 0.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (!dsp->conf) {
+ printk(KERN_WARNING "%s: dsp is not in a conf.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (list_empty(&dsp->conf->mlist)) {
+ printk(KERN_WARNING "%s: dsp has linked an empty conf.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ /* find us in conf */
+ list_for_each_entry(member, &dsp->conf->mlist, list) {
+ if (member->dsp == dsp) {
+ list_del(&member->list);
+ dsp->conf = NULL;
+ dsp->member = NULL;
+ kfree(member);
+ return 0;
+ }
+ }
+ printk(KERN_WARNING
+ "%s: dsp is not present in its own conf_meber list.\n",
+ __func__);
+
+ return -EINVAL;
+}
+
+
+/*
+ * new conference
+ */
+static struct dsp_conf
+*dsp_cmx_new_conf(u32 id)
+{
+ struct dsp_conf *conf;
+
+ if (!id) {
+ printk(KERN_WARNING "%s: id is 0.\n",
+ __func__);
+ return NULL;
+ }
+
+ conf = kzalloc(sizeof(struct dsp_conf), GFP_ATOMIC);
+ if (!conf) {
+ printk(KERN_ERR "kmalloc struct dsp_conf failed\n");
+ return NULL;
+ }
+ INIT_LIST_HEAD(&conf->mlist);
+ conf->id = id;
+
+ list_add_tail(&conf->list, &conf_ilist);
+
+ return conf;
+}
+
+
+/*
+ * del conference
+ */
+int
+dsp_cmx_del_conf(struct dsp_conf *conf)
+{
+ if (!conf) {
+ printk(KERN_WARNING "%s: conf is null.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (!list_empty(&conf->mlist)) {
+ printk(KERN_WARNING "%s: conf not empty.\n",
+ __func__);
+ return -EINVAL;
+ }
+ list_del(&conf->list);
+ kfree(conf);
+
+ return 0;
+}
+
+
+/*
+ * send HW message to hfc card
+ */
+static void
+dsp_cmx_hw_message(struct dsp *dsp, u32 message, u32 param1, u32 param2,
+ u32 param3, u32 param4)
+{
+ struct mISDN_ctrl_req cq;
+
+ memset(&cq, 0, sizeof(cq));
+ cq.op = message;
+ cq.p1 = param1 | (param2 << 8);
+ cq.p2 = param3 | (param4 << 8);
+ if (dsp->ch.peer)
+ dsp->ch.peer->ctrl(dsp->ch.peer, CONTROL_CHANNEL, &cq);
+}
+
+
+/*
+ * do hardware update and set the software/hardware flag
+ *
+ * either a conference or a dsp instance can be given
+ * if only dsp instance is given, the instance is not associated with a conf
+ * and therefore removed. if a conference is given, the dsp is expected to
+ * be member of that conference.
+ */
+void
+dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp)
+{
+ struct dsp_conf_member *member, *nextm;
+ struct dsp *finddsp;
+ int memb = 0, i, ii, i1, i2;
+ int freeunits[8];
+ u_char freeslots[256];
+ int same_hfc = -1, same_pcm = -1, current_conf = -1,
+ all_conf = 1;
+
+ /* dsp gets updated (no conf) */
+ if (!conf) {
+ if (!dsp)
+ return;
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "%s checking dsp %s\n",
+ __func__, dsp->name);
+one_member:
+ /* remove HFC conference if enabled */
+ if (dsp->hfc_conf >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s removing %s from HFC conf %d "
+ "because dsp is split\n", __func__,
+ dsp->name, dsp->hfc_conf);
+ dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_CONF_SPLIT,
+ 0, 0, 0, 0);
+ dsp->hfc_conf = -1;
+ }
+ /* process hw echo */
+ if (dsp->features.pcm_banks < 1)
+ return;
+ if (!dsp->echo) {
+ /* NO ECHO: remove PCM slot if assigned */
+ if (dsp->pcm_slot_tx >= 0 || dsp->pcm_slot_rx >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "%s removing %s from"
+ " PCM slot %d (TX) %d (RX) because"
+ " dsp is split (no echo)\n",
+ __func__, dsp->name,
+ dsp->pcm_slot_tx, dsp->pcm_slot_rx);
+ dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_DISC,
+ 0, 0, 0, 0);
+ dsp->pcm_slot_tx = -1;
+ dsp->pcm_bank_tx = -1;
+ dsp->pcm_slot_rx = -1;
+ dsp->pcm_bank_rx = -1;
+ }
+ return;
+ }
+ /* ECHO: already echo */
+ if (dsp->pcm_slot_tx >= 0 && dsp->pcm_slot_rx < 0 &&
+ dsp->pcm_bank_tx == 2 && dsp->pcm_bank_rx == 2)
+ return;
+ /* ECHO: if slot already assigned */
+ if (dsp->pcm_slot_tx >= 0) {
+ dsp->pcm_slot_rx = dsp->pcm_slot_tx;
+ dsp->pcm_bank_tx = 2; /* 2 means loop */
+ dsp->pcm_bank_rx = 2;
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s refresh %s for echo using slot %d\n",
+ __func__, dsp->name,
+ dsp->pcm_slot_tx);
+ dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_CONN,
+ dsp->pcm_slot_tx, 2, dsp->pcm_slot_rx, 2);
+ return;
+ }
+ /* ECHO: find slot */
+ dsp->pcm_slot_tx = -1;
+ dsp->pcm_slot_rx = -1;
+ memset(freeslots, 1, sizeof(freeslots));
+ list_for_each_entry(finddsp, &dsp_ilist, list) {
+ if (finddsp->features.pcm_id == dsp->features.pcm_id) {
+ if (finddsp->pcm_slot_rx >= 0 &&
+ finddsp->pcm_slot_rx < sizeof(freeslots))
+ freeslots[finddsp->pcm_slot_tx] = 0;
+ if (finddsp->pcm_slot_tx >= 0 &&
+ finddsp->pcm_slot_tx < sizeof(freeslots))
+ freeslots[finddsp->pcm_slot_rx] = 0;
+ }
+ }
+ i = 0;
+ ii = dsp->features.pcm_slots;
+ while (i < ii) {
+ if (freeslots[i])
+ break;
+ i++;
+ }
+ if (i == ii) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s no slot available for echo\n",
+ __func__);
+ /* no more slots available */
+ return;
+ }
+ /* assign free slot */
+ dsp->pcm_slot_tx = i;
+ dsp->pcm_slot_rx = i;
+ dsp->pcm_bank_tx = 2; /* loop */
+ dsp->pcm_bank_rx = 2;
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s assign echo for %s using slot %d\n",
+ __func__, dsp->name, dsp->pcm_slot_tx);
+ dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_CONN,
+ dsp->pcm_slot_tx, 2, dsp->pcm_slot_rx, 2);
+ return;
+ }
+
+ /* conf gets updated (all members) */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "%s checking conference %d\n",
+ __func__, conf->id);
+
+ if (list_empty(&conf->mlist)) {
+ printk(KERN_ERR "%s: conference whithout members\n",
+ __func__);
+ return;
+ }
+ member = list_entry(conf->mlist.next, struct dsp_conf_member, list);
+ same_hfc = member->dsp->features.hfc_id;
+ same_pcm = member->dsp->features.pcm_id;
+ /* check all members in our conference */
+ list_for_each_entry(member, &conf->mlist, list) {
+ /* check if member uses mixing */
+ if (member->dsp->tx_mix) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "tx_mix is turned on\n", __func__,
+ member->dsp->name);
+conf_software:
+ list_for_each_entry(member, &conf->mlist, list) {
+ dsp = member->dsp;
+ /* remove HFC conference if enabled */
+ if (dsp->hfc_conf >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s removing %s from HFC "
+ "conf %d because not "
+ "possible with hardware\n",
+ __func__,
+ dsp->name,
+ dsp->hfc_conf);
+ dsp_cmx_hw_message(dsp,
+ MISDN_CTRL_HFC_CONF_SPLIT,
+ 0, 0, 0, 0);
+ dsp->hfc_conf = -1;
+ }
+ /* remove PCM slot if assigned */
+ if (dsp->pcm_slot_tx >= 0 ||
+ dsp->pcm_slot_rx >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "%s removing "
+ "%s from PCM slot %d (TX)"
+ " slot %d (RX) because not"
+ " possible with hardware\n",
+ __func__,
+ dsp->name,
+ dsp->pcm_slot_tx,
+ dsp->pcm_slot_rx);
+ dsp_cmx_hw_message(dsp,
+ MISDN_CTRL_HFC_PCM_DISC,
+ 0, 0, 0, 0);
+ dsp->pcm_slot_tx = -1;
+ dsp->pcm_bank_tx = -1;
+ dsp->pcm_slot_rx = -1;
+ dsp->pcm_bank_rx = -1;
+ }
+ }
+ conf->hardware = 0;
+ conf->software = 1;
+ return;
+ }
+ /* check if member has echo turned on */
+ if (member->dsp->echo) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "echo is turned on\n", __func__,
+ member->dsp->name);
+ goto conf_software;
+ }
+ /* check if member has tx_mix turned on */
+ if (member->dsp->tx_mix) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "tx_mix is turned on\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* check if member changes volume at an not suppoted level */
+ if (member->dsp->tx_volume) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "tx_volume is changed\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ if (member->dsp->rx_volume) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "rx_volume is changed\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* check if tx-data turned on */
+ if (member->dsp->tx_data) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "tx_data is turned on\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* check if pipeline exists */
+ if (member->dsp->pipeline.inuse) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "pipeline exists\n", __func__,
+ member->dsp->name);
+ goto conf_software;
+ }
+ /* check if encryption is enabled */
+ if (member->dsp->bf_enable) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "%s dsp %s cannot form a "
+ "conf, because encryption is enabled\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* check if member is on a card with PCM support */
+ if (member->dsp->features.pcm_id < 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "dsp has no PCM bus\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* check if relations are on the same PCM bus */
+ if (member->dsp->features.pcm_id != same_pcm) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s cannot form a conf, because "
+ "dsp is on a different PCM bus than the "
+ "first dsp\n",
+ __func__, member->dsp->name);
+ goto conf_software;
+ }
+ /* determine if members are on the same hfc chip */
+ if (same_hfc != member->dsp->features.hfc_id)
+ same_hfc = -1;
+ /* if there are members already in a conference */
+ if (current_conf < 0 && member->dsp->hfc_conf >= 0)
+ current_conf = member->dsp->hfc_conf;
+ /* if any member is not in a conference */
+ if (member->dsp->hfc_conf < 0)
+ all_conf = 0;
+
+ memb++;
+ }
+
+ /* if no member, this is an error */
+ if (memb < 1)
+ return;
+
+ /* one member */
+ if (memb == 1) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s conf %d cannot form a HW conference, "
+ "because dsp is alone\n", __func__, conf->id);
+ conf->hardware = 0;
+ conf->software = 0;
+ member = list_entry(conf->mlist.next, struct dsp_conf_member,
+ list);
+ dsp = member->dsp;
+ goto one_member;
+ }
+
+ /*
+ * ok, now we are sure that all members are on the same pcm.
+ * now we will see if we have only two members, so we can do
+ * crossconnections, which don't have any limitations.
+ */
+
+ /* if we have only two members */
+ if (memb == 2) {
+ member = list_entry(conf->mlist.next, struct dsp_conf_member,
+ list);
+ nextm = list_entry(member->list.next, struct dsp_conf_member,
+ list);
+ /* remove HFC conference if enabled */
+ if (member->dsp->hfc_conf >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s removing %s from HFC conf %d because "
+ "two parties require only a PCM slot\n",
+ __func__, member->dsp->name,
+ member->dsp->hfc_conf);
+ dsp_cmx_hw_message(member->dsp,
+ MISDN_CTRL_HFC_CONF_SPLIT, 0, 0, 0, 0);
+ member->dsp->hfc_conf = -1;
+ }
+ if (nextm->dsp->hfc_conf >= 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s removing %s from HFC conf %d because "
+ "two parties require only a PCM slot\n",
+ __func__, nextm->dsp->name,
+ nextm->dsp->hfc_conf);
+ dsp_cmx_hw_message(nextm->dsp,
+ MISDN_CTRL_HFC_CONF_SPLIT, 0, 0, 0, 0);
+ nextm->dsp->hfc_conf = -1;
+ }
+ /* if members have two banks (and not on the same chip) */
+ if (member->dsp->features.pcm_banks > 1 &&
+ nextm->dsp->features.pcm_banks > 1 &&
+ member->dsp->features.hfc_id !=
+ nextm->dsp->features.hfc_id) {
+ /* if both members have same slots with crossed banks */
+ if (member->dsp->pcm_slot_tx >= 0 &&
+ member->dsp->pcm_slot_rx >= 0 &&
+ nextm->dsp->pcm_slot_tx >= 0 &&
+ nextm->dsp->pcm_slot_rx >= 0 &&
+ nextm->dsp->pcm_slot_tx ==
+ member->dsp->pcm_slot_rx &&
+ nextm->dsp->pcm_slot_rx ==
+ member->dsp->pcm_slot_tx &&
+ nextm->dsp->pcm_slot_tx ==
+ member->dsp->pcm_slot_tx &&
+ member->dsp->pcm_bank_tx !=
+ member->dsp->pcm_bank_rx &&
+ nextm->dsp->pcm_bank_tx !=
+ nextm->dsp->pcm_bank_rx) {
+ /* all members have same slot */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s & %s stay joined on "
+ "PCM slot %d bank %d (TX) bank %d "
+ "(RX) (on different chips)\n",
+ __func__,
+ member->dsp->name,
+ nextm->dsp->name,
+ member->dsp->pcm_slot_tx,
+ member->dsp->pcm_bank_tx,
+ member->dsp->pcm_bank_rx);
+ conf->hardware = 0;
+ conf->software = 1;
+ return;
+ }
+ /* find a new slot */
+ memset(freeslots, 1, sizeof(freeslots));
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ if (dsp != member->dsp &&
+ dsp != nextm->dsp &&
+ member->dsp->features.pcm_id ==
+ dsp->features.pcm_id) {
+ if (dsp->pcm_slot_rx >= 0 &&
+ dsp->pcm_slot_rx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_tx] = 0;
+ if (dsp->pcm_slot_tx >= 0 &&
+ dsp->pcm_slot_tx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_rx] = 0;
+ }
+ }
+ i = 0;
+ ii = member->dsp->features.pcm_slots;
+ while (i < ii) {
+ if (freeslots[i])
+ break;
+ i++;
+ }
+ if (i == ii) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s no slot available for "
+ "%s & %s\n", __func__,
+ member->dsp->name,
+ nextm->dsp->name);
+ /* no more slots available */
+ goto conf_software;
+ }
+ /* assign free slot */
+ member->dsp->pcm_slot_tx = i;
+ member->dsp->pcm_slot_rx = i;
+ nextm->dsp->pcm_slot_tx = i;
+ nextm->dsp->pcm_slot_rx = i;
+ member->dsp->pcm_bank_rx = 0;
+ member->dsp->pcm_bank_tx = 1;
+ nextm->dsp->pcm_bank_rx = 1;
+ nextm->dsp->pcm_bank_tx = 0;
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s adding %s & %s to new PCM slot %d "
+ "(TX and RX on different chips) because "
+ "both members have not same slots\n",
+ __func__,
+ member->dsp->name,
+ nextm->dsp->name,
+ member->dsp->pcm_slot_tx);
+ dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,
+ member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx,
+ member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx);
+ dsp_cmx_hw_message(nextm->dsp, MISDN_CTRL_HFC_PCM_CONN,
+ nextm->dsp->pcm_slot_tx, nextm->dsp->pcm_bank_tx,
+ nextm->dsp->pcm_slot_rx, nextm->dsp->pcm_bank_rx);
+ conf->hardware = 1;
+ conf->software = 0;
+ return;
+ /* if members have one bank (or on the same chip) */
+ } else {
+ /* if both members have different crossed slots */
+ if (member->dsp->pcm_slot_tx >= 0 &&
+ member->dsp->pcm_slot_rx >= 0 &&
+ nextm->dsp->pcm_slot_tx >= 0 &&
+ nextm->dsp->pcm_slot_rx >= 0 &&
+ nextm->dsp->pcm_slot_tx ==
+ member->dsp->pcm_slot_rx &&
+ nextm->dsp->pcm_slot_rx ==
+ member->dsp->pcm_slot_tx &&
+ member->dsp->pcm_slot_tx !=
+ member->dsp->pcm_slot_rx &&
+ member->dsp->pcm_bank_tx == 0 &&
+ member->dsp->pcm_bank_rx == 0 &&
+ nextm->dsp->pcm_bank_tx == 0 &&
+ nextm->dsp->pcm_bank_rx == 0) {
+ /* all members have same slot */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s dsp %s & %s stay joined on PCM "
+ "slot %d (TX) %d (RX) on same chip "
+ "or one bank PCM)\n", __func__,
+ member->dsp->name,
+ nextm->dsp->name,
+ member->dsp->pcm_slot_tx,
+ member->dsp->pcm_slot_rx);
+ conf->hardware = 0;
+ conf->software = 1;
+ return;
+ }
+ /* find two new slot */
+ memset(freeslots, 1, sizeof(freeslots));
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ if (dsp != member->dsp &&
+ dsp != nextm->dsp &&
+ member->dsp->features.pcm_id ==
+ dsp->features.pcm_id) {
+ if (dsp->pcm_slot_rx >= 0 &&
+ dsp->pcm_slot_rx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_tx] = 0;
+ if (dsp->pcm_slot_tx >= 0 &&
+ dsp->pcm_slot_tx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_rx] = 0;
+ }
+ }
+ i1 = 0;
+ ii = member->dsp->features.pcm_slots;
+ while (i1 < ii) {
+ if (freeslots[i1])
+ break;
+ i1++;
+ }
+ if (i1 == ii) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s no slot available "
+ "for %s & %s\n", __func__,
+ member->dsp->name,
+ nextm->dsp->name);
+ /* no more slots available */
+ goto conf_software;
+ }
+ i2 = i1+1;
+ while (i2 < ii) {
+ if (freeslots[i2])
+ break;
+ i2++;
+ }
+ if (i2 == ii) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s no slot available "
+ "for %s & %s\n",
+ __func__,
+ member->dsp->name,
+ nextm->dsp->name);
+ /* no more slots available */
+ goto conf_software;
+ }
+ /* assign free slots */
+ member->dsp->pcm_slot_tx = i1;
+ member->dsp->pcm_slot_rx = i2;
+ nextm->dsp->pcm_slot_tx = i2;
+ nextm->dsp->pcm_slot_rx = i1;
+ member->dsp->pcm_bank_rx = 0;
+ member->dsp->pcm_bank_tx = 0;
+ nextm->dsp->pcm_bank_rx = 0;
+ nextm->dsp->pcm_bank_tx = 0;
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s adding %s & %s to new PCM slot %d "
+ "(TX) %d (RX) on same chip or one bank "
+ "PCM, because both members have not "
+ "crossed slots\n", __func__,
+ member->dsp->name,
+ nextm->dsp->name,
+ member->dsp->pcm_slot_tx,
+ member->dsp->pcm_slot_rx);
+ dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,
+ member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx,
+ member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx);
+ dsp_cmx_hw_message(nextm->dsp, MISDN_CTRL_HFC_PCM_CONN,
+ nextm->dsp->pcm_slot_tx, nextm->dsp->pcm_bank_tx,
+ nextm->dsp->pcm_slot_rx, nextm->dsp->pcm_bank_rx);
+ conf->hardware = 1;
+ conf->software = 0;
+ return;
+ }
+ }
+
+ /*
+ * if we have more than two, we may check if we have a conference
+ * unit available on the chip. also all members must be on the same
+ */
+
+ /* if not the same HFC chip */
+ if (same_hfc < 0) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s conference %d cannot be formed, because "
+ "members are on different chips or not "
+ "on HFC chip\n",
+ __func__, conf->id);
+ goto conf_software;
+ }
+
+ /* for more than two members.. */
+
+ /* in case of hdlc, we change to software */
+ if (dsp->hdlc)
+ goto conf_software;
+
+ /* if all members already have the same conference */
+ if (all_conf)
+ return;
+
+ /*
+ * if there is an existing conference, but not all members have joined
+ */
+ if (current_conf >= 0) {
+join_members:
+ list_for_each_entry(member, &conf->mlist, list) {
+ /* join to current conference */
+ if (member->dsp->hfc_conf == current_conf)
+ continue;
+ /* get a free timeslot first */
+ memset(freeslots, 1, sizeof(freeslots));
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ /*
+ * not checking current member, because
+ * slot will be overwritten.
+ */
+ if (
+ dsp != member->dsp &&
+ /* dsp must be on the same PCM */
+ member->dsp->features.pcm_id ==
+ dsp->features.pcm_id) {
+ /* dsp must be on a slot */
+ if (dsp->pcm_slot_tx >= 0 &&
+ dsp->pcm_slot_tx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_tx] = 0;
+ if (dsp->pcm_slot_rx >= 0 &&
+ dsp->pcm_slot_rx <
+ sizeof(freeslots))
+ freeslots[dsp->pcm_slot_rx] = 0;
+ }
+ }
+ i = 0;
+ ii = member->dsp->features.pcm_slots;
+ while (i < ii) {
+ if (freeslots[i])
+ break;
+ i++;
+ }
+ if (i == ii) {
+ /* no more slots available */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s conference %d cannot be formed,"
+ " because no slot free\n",
+ __func__, conf->id);
+ goto conf_software;
+ }
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s changing dsp %s to HW conference "
+ "%d slot %d\n", __func__,
+ member->dsp->name, current_conf, i);
+ /* assign free slot & set PCM & join conf */
+ member->dsp->pcm_slot_tx = i;
+ member->dsp->pcm_slot_rx = i;
+ member->dsp->pcm_bank_tx = 2; /* loop */
+ member->dsp->pcm_bank_rx = 2;
+ member->dsp->hfc_conf = current_conf;
+ dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN,
+ i, 2, i, 2);
+ dsp_cmx_hw_message(member->dsp,
+ MISDN_CTRL_HFC_CONF_JOIN, current_conf, 0, 0, 0);
+ }
+ return;
+ }
+
+ /*
+ * no member is in a conference yet, so we find a free one
+ */
+ memset(freeunits, 1, sizeof(freeunits));
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ /* dsp must be on the same chip */
+ if (dsp->features.hfc_id == same_hfc &&
+ /* dsp must have joined a HW conference */
+ dsp->hfc_conf >= 0 &&
+ /* slot must be within range */
+ dsp->hfc_conf < 8)
+ freeunits[dsp->hfc_conf] = 0;
+ }
+ i = 0;
+ ii = 8;
+ while (i < ii) {
+ if (freeunits[i])
+ break;
+ i++;
+ }
+ if (i == ii) {
+ /* no more conferences available */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s conference %d cannot be formed, because "
+ "no conference number free\n",
+ __func__, conf->id);
+ goto conf_software;
+ }
+ /* join all members */
+ current_conf = i;
+ goto join_members;
+}
+
+
+/*
+ * conf_id != 0: join or change conference
+ * conf_id == 0: split from conference if not already
+ */
+int
+dsp_cmx_conf(struct dsp *dsp, u32 conf_id)
+{
+ int err;
+ struct dsp_conf *conf;
+ struct dsp_conf_member *member;
+
+ /* if conference doesn't change */
+ if (dsp->conf_id == conf_id)
+ return 0;
+
+ /* first remove us from current conf */
+ if (dsp->conf_id) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "removing us from conference %d\n",
+ dsp->conf->id);
+ /* remove us from conf */
+ conf = dsp->conf;
+ err = dsp_cmx_del_conf_member(dsp);
+ if (err)
+ return err;
+ dsp->conf_id = 0;
+
+ /* update hardware */
+ dsp_cmx_hardware(NULL, dsp);
+
+ /* conf now empty? */
+ if (list_empty(&conf->mlist)) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "conference is empty, so we remove it.\n");
+ err = dsp_cmx_del_conf(conf);
+ if (err)
+ return err;
+ } else {
+ /* update members left on conf */
+ dsp_cmx_hardware(conf, NULL);
+ }
+ }
+
+ /* if split */
+ if (!conf_id)
+ return 0;
+
+ /* now add us to conf */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG "searching conference %d\n",
+ conf_id);
+ conf = dsp_cmx_search_conf(conf_id);
+ if (!conf) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "conference doesn't exist yet, creating.\n");
+ /* the conference doesn't exist, so we create */
+ conf = dsp_cmx_new_conf(conf_id);
+ if (!conf)
+ return -EINVAL;
+ } else if (!list_empty(&conf->mlist)) {
+ member = list_entry(conf->mlist.next, struct dsp_conf_member,
+ list);
+ if (dsp->hdlc && !member->dsp->hdlc) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "cannot join transparent conference.\n");
+ return -EINVAL;
+ }
+ if (!dsp->hdlc && member->dsp->hdlc) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "cannot join hdlc conference.\n");
+ return -EINVAL;
+ }
+ }
+ /* add conference member */
+ err = dsp_cmx_add_conf_member(dsp, conf);
+ if (err)
+ return err;
+ dsp->conf_id = conf_id;
+
+ /* if we are alone, we do nothing! */
+ if (list_empty(&conf->mlist)) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "we are alone in this conference, so exit.\n");
+ /* update hardware */
+ dsp_cmx_hardware(NULL, dsp);
+ return 0;
+ }
+
+ /* update members on conf */
+ dsp_cmx_hardware(conf, NULL);
+
+ return 0;
+}
+
+
+/*
+ * audio data is received from card
+ */
+void
+dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb)
+{
+ u8 *d, *p;
+ int len = skb->len;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int w, i, ii;
+
+ /* check if we have sompen */
+ if (len < 1)
+ return;
+
+ /* half of the buffer should be larger than maximum packet size */
+ if (len >= CMX_BUFF_HALF) {
+ printk(KERN_ERR
+ "%s line %d: packet from card is too large (%d bytes). "
+ "please make card send smaller packets OR increase "
+ "CMX_BUFF_SIZE\n", __FILE__, __LINE__, len);
+ return;
+ }
+
+ /*
+ * initialize pointers if not already -
+ * also add delay if requested by PH_SIGNAL
+ */
+ if (dsp->rx_init) {
+ dsp->rx_init = 0;
+ if (dsp->features.unordered) {
+ dsp->rx_R = (hh->id & CMX_BUFF_MASK);
+ dsp->rx_W = (dsp->rx_R + dsp->cmx_delay)
+ & CMX_BUFF_MASK;
+ } else {
+ dsp->rx_R = 0;
+ dsp->rx_W = dsp->cmx_delay;
+ }
+ }
+ /* if frame contains time code, write directly */
+ if (dsp->features.unordered) {
+ dsp->rx_W = (hh->id & CMX_BUFF_MASK);
+ /* printk(KERN_DEBUG "%s %08x\n", dsp->name, hh->id); */
+ }
+ /*
+ * if we underrun (or maybe overrun),
+ * we set our new read pointer, and write silence to buffer
+ */
+ if (((dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK) >= CMX_BUFF_HALF) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "cmx_receive(dsp=%lx): UNDERRUN (or overrun the "
+ "maximum delay), adjusting read pointer! "
+ "(inst %s)\n", (u_long)dsp, dsp->name);
+ /* flush buffer */
+ if (dsp->features.unordered) {
+ dsp->rx_R = (hh->id & CMX_BUFF_MASK);
+ dsp->rx_W = (dsp->rx_R + dsp->cmx_delay)
+ & CMX_BUFF_MASK;
+ } else {
+ dsp->rx_R = 0;
+ dsp->rx_W = dsp->cmx_delay;
+ }
+ memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff));
+ }
+ /* if we have reached double delay, jump back to middle */
+ if (dsp->cmx_delay)
+ if (((dsp->rx_W - dsp->rx_R) & CMX_BUFF_MASK) >=
+ (dsp->cmx_delay << 1)) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "cmx_receive(dsp=%lx): OVERRUN (because "
+ "twice the delay is reached), adjusting "
+ "read pointer! (inst %s)\n",
+ (u_long)dsp, dsp->name);
+ /* flush buffer */
+ if (dsp->features.unordered) {
+ dsp->rx_R = (hh->id & CMX_BUFF_MASK);
+ dsp->rx_W = (dsp->rx_R + dsp->cmx_delay)
+ & CMX_BUFF_MASK;
+ } else {
+ dsp->rx_R = 0;
+ dsp->rx_W = dsp->cmx_delay;
+ }
+ memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff));
+ }
+
+ /* show where to write */
+#ifdef CMX_DEBUG
+ printk(KERN_DEBUG
+ "cmx_receive(dsp=%lx): rx_R(dsp)=%05x rx_W(dsp)=%05x len=%d %s\n",
+ (u_long)dsp, dsp->rx_R, dsp->rx_W, len, dsp->name);
+#endif
+
+ /* write data into rx_buffer */
+ p = skb->data;
+ d = dsp->rx_buff;
+ w = dsp->rx_W;
+ i = 0;
+ ii = len;
+ while (i < ii) {
+ d[w++ & CMX_BUFF_MASK] = *p++;
+ i++;
+ }
+
+ /* increase write-pointer */
+ dsp->rx_W = ((dsp->rx_W+len) & CMX_BUFF_MASK);
+}
+
+
+/*
+ * send (mixed) audio data to card and control jitter
+ */
+static void
+dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members)
+{
+ struct dsp_conf *conf = dsp->conf;
+ struct dsp *member, *other;
+ register s32 sample;
+ u8 *d, *p, *q, *o_q;
+ struct sk_buff *nskb, *txskb;
+ int r, rr, t, tt, o_r, o_rr;
+ int preload = 0;
+ struct mISDNhead *hh, *thh;
+
+ /* don't process if: */
+ if (!dsp->b_active) { /* if not active */
+ dsp->last_tx = 0;
+ return;
+ }
+ if (dsp->pcm_slot_tx >= 0 && /* connected to pcm slot */
+ dsp->tx_R == dsp->tx_W && /* AND no tx-data */
+ !(dsp->tone.tone && dsp->tone.software)) { /* AND not soft tones */
+ dsp->last_tx = 0;
+ return;
+ }
+
+#ifdef CMX_DEBUG
+ printk(KERN_DEBUG
+ "SEND members=%d dsp=%s, conf=%p, rx_R=%05x rx_W=%05x\n",
+ members, dsp->name, conf, dsp->rx_R, dsp->rx_W);
+#endif
+
+ /* preload if we have delay set */
+ if (dsp->cmx_delay && !dsp->last_tx) {
+ preload = len;
+ if (preload < 128)
+ preload = 128;
+ }
+
+ /* PREPARE RESULT */
+ nskb = mI_alloc_skb(len + preload, GFP_ATOMIC);
+ if (!nskb) {
+ printk(KERN_ERR
+ "FATAL ERROR in mISDN_dsp.o: cannot alloc %d bytes\n",
+ len + preload);
+ return;
+ }
+ hh = mISDN_HEAD_P(nskb);
+ hh->prim = PH_DATA_REQ;
+ hh->id = 0;
+ dsp->last_tx = 1;
+
+ /* set pointers, indexes and stuff */
+ member = dsp;
+ p = dsp->tx_buff; /* transmit data */
+ q = dsp->rx_buff; /* received data */
+ d = skb_put(nskb, preload + len); /* result */
+ t = dsp->tx_R; /* tx-pointers */
+ tt = dsp->tx_W;
+ r = dsp->rx_R; /* rx-pointers */
+ rr = (r + len) & CMX_BUFF_MASK;
+
+ /* preload with silence, if required */
+ if (preload) {
+ memset(d, dsp_silence, preload);
+ d += preload;
+ }
+
+ /* PROCESS TONES/TX-DATA ONLY */
+ if (dsp->tone.tone && dsp->tone.software) {
+ /* -> copy tone */
+ dsp_tone_copy(dsp, d, len);
+ dsp->tx_R = 0; /* clear tx buffer */
+ dsp->tx_W = 0;
+ goto send_packet;
+ }
+ /* if we have tx-data but do not use mixing */
+ if (!dsp->tx_mix && t != tt) {
+ /* -> send tx-data and continue when not enough */
+#ifdef CMX_TX_DEBUG
+ sprintf(debugbuf, "TX sending (%04x-%04x)%p: ", t, tt, p);
+#endif
+ while (r != rr && t != tt) {
+#ifdef CMX_TX_DEBUG
+ if (strlen(debugbuf) < 48)
+ sprintf(debugbuf+strlen(debugbuf), " %02x", p[t]);
+#endif
+ *d++ = p[t]; /* write tx_buff */
+ t = (t+1) & CMX_BUFF_MASK;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ if (r == rr) {
+ dsp->tx_R = t;
+#ifdef CMX_TX_DEBUG
+ printk(KERN_DEBUG "%s\n", debugbuf);
+#endif
+ goto send_packet;
+ }
+ }
+#ifdef CMX_TX_DEBUG
+ printk(KERN_DEBUG "%s\n", debugbuf);
+#endif
+
+ /* PROCESS DATA (one member / no conf) */
+ if (!conf || members <= 1) {
+ /* -> if echo is NOT enabled */
+ if (!dsp->echo) {
+ /* -> send tx-data if available or use 0-volume */
+ while (r != rr && t != tt) {
+ *d++ = p[t]; /* write tx_buff */
+ t = (t+1) & CMX_BUFF_MASK;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ if (r != rr)
+ memset(d, dsp_silence, (rr-r)&CMX_BUFF_MASK);
+ /* -> if echo is enabled */
+ } else {
+ /*
+ * -> mix tx-data with echo if available,
+ * or use echo only
+ */
+ while (r != rr && t != tt) {
+ *d++ = dsp_audio_mix_law[(p[t]<<8)|q[r]];
+ t = (t+1) & CMX_BUFF_MASK;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ while (r != rr) {
+ *d++ = q[r]; /* echo */
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ }
+ dsp->tx_R = t;
+ goto send_packet;
+ }
+ /* PROCESS DATA (two members) */
+#ifdef CMX_CONF_DEBUG
+ if (0) {
+#else
+ if (members == 2) {
+#endif
+ /* "other" becomes other party */
+ other = (list_entry(conf->mlist.next,
+ struct dsp_conf_member, list))->dsp;
+ if (other == member)
+ other = (list_entry(conf->mlist.prev,
+ struct dsp_conf_member, list))->dsp;
+ o_q = other->rx_buff; /* received data */
+ o_rr = (other->rx_R + len) & CMX_BUFF_MASK;
+ /* end of rx-pointer */
+ o_r = (o_rr - rr + r) & CMX_BUFF_MASK;
+ /* start rx-pointer at current read position*/
+ /* -> if echo is NOT enabled */
+ if (!dsp->echo) {
+ /*
+ * -> copy other member's rx-data,
+ * if tx-data is available, mix
+ */
+ while (o_r != o_rr && t != tt) {
+ *d++ = dsp_audio_mix_law[(p[t]<<8)|o_q[o_r]];
+ t = (t+1) & CMX_BUFF_MASK;
+ o_r = (o_r+1) & CMX_BUFF_MASK;
+ }
+ while (o_r != o_rr) {
+ *d++ = o_q[o_r];
+ o_r = (o_r+1) & CMX_BUFF_MASK;
+ }
+ /* -> if echo is enabled */
+ } else {
+ /*
+ * -> mix other member's rx-data with echo,
+ * if tx-data is available, mix
+ */
+ while (r != rr && t != tt) {
+ sample = dsp_audio_law_to_s32[p[t]] +
+ dsp_audio_law_to_s32[q[r]] +
+ dsp_audio_law_to_s32[o_q[o_r]];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ *d++ = dsp_audio_s16_to_law[sample & 0xffff];
+ /* tx-data + rx_data + echo */
+ t = (t+1) & CMX_BUFF_MASK;
+ r = (r+1) & CMX_BUFF_MASK;
+ o_r = (o_r+1) & CMX_BUFF_MASK;
+ }
+ while (r != rr) {
+ *d++ = dsp_audio_mix_law[(q[r]<<8)|o_q[o_r]];
+ r = (r+1) & CMX_BUFF_MASK;
+ o_r = (o_r+1) & CMX_BUFF_MASK;
+ }
+ }
+ dsp->tx_R = t;
+ goto send_packet;
+ }
+#ifdef DSP_NEVER_DEFINED
+ }
+#endif
+ /* PROCESS DATA (three or more members) */
+ /* -> if echo is NOT enabled */
+ if (!dsp->echo) {
+ /*
+ * -> substract rx-data from conf-data,
+ * if tx-data is available, mix
+ */
+ while (r != rr && t != tt) {
+ sample = dsp_audio_law_to_s32[p[t]] + *c++ -
+ dsp_audio_law_to_s32[q[r]];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ *d++ = dsp_audio_s16_to_law[sample & 0xffff];
+ /* conf-rx+tx */
+ r = (r+1) & CMX_BUFF_MASK;
+ t = (t+1) & CMX_BUFF_MASK;
+ }
+ while (r != rr) {
+ sample = *c++ - dsp_audio_law_to_s32[q[r]];
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ *d++ = dsp_audio_s16_to_law[sample & 0xffff];
+ /* conf-rx */
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ /* -> if echo is enabled */
+ } else {
+ /*
+ * -> encode conf-data, if tx-data
+ * is available, mix
+ */
+ while (r != rr && t != tt) {
+ sample = dsp_audio_law_to_s32[p[t]] + *c++;
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ *d++ = dsp_audio_s16_to_law[sample & 0xffff];
+ /* conf(echo)+tx */
+ t = (t+1) & CMX_BUFF_MASK;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ while (r != rr) {
+ sample = *c++;
+ if (sample < -32768)
+ sample = -32768;
+ else if (sample > 32767)
+ sample = 32767;
+ *d++ = dsp_audio_s16_to_law[sample & 0xffff];
+ /* conf(echo) */
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ }
+ dsp->tx_R = t;
+ goto send_packet;
+
+send_packet:
+ /*
+ * send tx-data if enabled - don't filter,
+ * becuase we want what we send, not what we filtered
+ */
+ if (dsp->tx_data) {
+ /* PREPARE RESULT */
+ txskb = mI_alloc_skb(len, GFP_ATOMIC);
+ if (!txskb) {
+ printk(KERN_ERR
+ "FATAL ERROR in mISDN_dsp.o: "
+ "cannot alloc %d bytes\n", len);
+ } else {
+ thh = mISDN_HEAD_P(txskb);
+ thh->prim = DL_DATA_REQ;
+ thh->id = 0;
+ memcpy(skb_put(txskb, len), nskb->data+preload, len);
+ /* queue (trigger later) */
+ skb_queue_tail(&dsp->sendq, txskb);
+ }
+ }
+ /* adjust volume */
+ if (dsp->tx_volume)
+ dsp_change_volume(nskb, dsp->tx_volume);
+ /* pipeline */
+ if (dsp->pipeline.inuse)
+ dsp_pipeline_process_tx(&dsp->pipeline, nskb->data, nskb->len);
+ /* crypt */
+ if (dsp->bf_enable)
+ dsp_bf_encrypt(dsp, nskb->data, nskb->len);
+ /* queue and trigger */
+ skb_queue_tail(&dsp->sendq, nskb);
+ schedule_work(&dsp->workq);
+}
+
+u32 samplecount;
+struct timer_list dsp_spl_tl;
+u32 dsp_spl_jiffies; /* calculate the next time to fire */
+u32 dsp_start_jiffies; /* jiffies at the time, the calculation begins */
+struct timeval dsp_start_tv; /* time at start of calculation */
+
+void
+dsp_cmx_send(void *arg)
+{
+ struct dsp_conf *conf;
+ struct dsp_conf_member *member;
+ struct dsp *dsp;
+ int mustmix, members;
+ s32 mixbuffer[MAX_POLL+100], *c;
+ u8 *p, *q;
+ int r, rr;
+ int jittercheck = 0, delay, i;
+ u_long flags;
+ struct timeval tv;
+ u32 elapsed;
+ s16 length;
+
+ /* lock */
+ spin_lock_irqsave(&dsp_lock, flags);
+
+ if (!dsp_start_tv.tv_sec) {
+ do_gettimeofday(&dsp_start_tv);
+ length = dsp_poll;
+ } else {
+ do_gettimeofday(&tv);
+ elapsed = ((tv.tv_sec - dsp_start_tv.tv_sec) * 8000)
+ + ((s32)(tv.tv_usec / 125) - (dsp_start_tv.tv_usec / 125));
+ dsp_start_tv.tv_sec = tv.tv_sec;
+ dsp_start_tv.tv_usec = tv.tv_usec;
+ length = elapsed;
+ }
+ if (length > MAX_POLL + 100)
+ length = MAX_POLL + 100;
+/* printk(KERN_DEBUG "len=%d dsp_count=0x%x.%04x dsp_poll_diff=0x%x.%04x\n",
+ length, dsp_count >> 16, dsp_count & 0xffff, dsp_poll_diff >> 16,
+ dsp_poll_diff & 0xffff);
+ */
+
+ /*
+ * check if jitter needs to be checked
+ * (this is about every second = 8192 samples)
+ */
+ samplecount += length;
+ if ((samplecount & 8191) < length)
+ jittercheck = 1;
+
+ /* loop all members that do not require conference mixing */
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ if (dsp->hdlc)
+ continue;
+ conf = dsp->conf;
+ mustmix = 0;
+ members = 0;
+ if (conf) {
+ members = count_list_member(&conf->mlist);
+#ifdef CMX_CONF_DEBUG
+ if (conf->software && members > 1)
+#else
+ if (conf->software && members > 2)
+#endif
+ mustmix = 1;
+ }
+
+ /* transmission required */
+ if (!mustmix) {
+ dsp_cmx_send_member(dsp, length, mixbuffer, members);
+
+ /*
+ * unused mixbuffer is given to prevent a
+ * potential null-pointer-bug
+ */
+ }
+ }
+
+ /* loop all members that require conference mixing */
+ list_for_each_entry(conf, &conf_ilist, list) {
+ /* count members and check hardware */
+ members = count_list_member(&conf->mlist);
+#ifdef CMX_CONF_DEBUG
+ if (conf->software && members > 1) {
+#else
+ if (conf->software && members > 2) {
+#endif
+ /* check for hdlc conf */
+ member = list_entry(conf->mlist.next,
+ struct dsp_conf_member, list);
+ if (member->dsp->hdlc)
+ continue;
+ /* mix all data */
+ memset(mixbuffer, 0, length*sizeof(s32));
+ list_for_each_entry(member, &conf->mlist, list) {
+ dsp = member->dsp;
+ /* get range of data to mix */
+ c = mixbuffer;
+ q = dsp->rx_buff;
+ r = dsp->rx_R;
+ rr = (r + length) & CMX_BUFF_MASK;
+ /* add member's data */
+ while (r != rr) {
+ *c++ += dsp_audio_law_to_s32[q[r]];
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ }
+
+ /* process each member */
+ list_for_each_entry(member, &conf->mlist, list) {
+ /* transmission */
+ dsp_cmx_send_member(member->dsp, length,
+ mixbuffer, members);
+ }
+ }
+ }
+
+ /* delete rx-data, increment buffers, change pointers */
+ list_for_each_entry(dsp, &dsp_ilist, list) {
+ if (dsp->hdlc)
+ continue;
+ p = dsp->rx_buff;
+ q = dsp->tx_buff;
+ r = dsp->rx_R;
+ /* move receive pointer when receiving */
+ if (!dsp->rx_is_off) {
+ rr = (r + length) & CMX_BUFF_MASK;
+ /* delete rx-data */
+ while (r != rr) {
+ p[r] = dsp_silence;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ /* increment rx-buffer pointer */
+ dsp->rx_R = r; /* write incremented read pointer */
+ }
+
+ /* check current rx_delay */
+ delay = (dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK;
+ if (delay >= CMX_BUFF_HALF)
+ delay = 0; /* will be the delay before next write */
+ /* check for lower delay */
+ if (delay < dsp->rx_delay[0])
+ dsp->rx_delay[0] = delay;
+ /* check current tx_delay */
+ delay = (dsp->tx_W-dsp->tx_R) & CMX_BUFF_MASK;
+ if (delay >= CMX_BUFF_HALF)
+ delay = 0; /* will be the delay before next write */
+ /* check for lower delay */
+ if (delay < dsp->tx_delay[0])
+ dsp->tx_delay[0] = delay;
+ if (jittercheck) {
+ /* find the lowest of all rx_delays */
+ delay = dsp->rx_delay[0];
+ i = 1;
+ while (i < MAX_SECONDS_JITTER_CHECK) {
+ if (delay > dsp->rx_delay[i])
+ delay = dsp->rx_delay[i];
+ i++;
+ }
+ /*
+ * remove rx_delay only if we have delay AND we
+ * have not preset cmx_delay
+ */
+ if (delay && !dsp->cmx_delay) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s lowest rx_delay of %d bytes for"
+ " dsp %s are now removed.\n",
+ __func__, delay,
+ dsp->name);
+ r = dsp->rx_R;
+ rr = (r + delay) & CMX_BUFF_MASK;
+ /* delete rx-data */
+ while (r != rr) {
+ p[r] = dsp_silence;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ /* increment rx-buffer pointer */
+ dsp->rx_R = r;
+ /* write incremented read pointer */
+ }
+ /* find the lowest of all tx_delays */
+ delay = dsp->tx_delay[0];
+ i = 1;
+ while (i < MAX_SECONDS_JITTER_CHECK) {
+ if (delay > dsp->tx_delay[i])
+ delay = dsp->tx_delay[i];
+ i++;
+ }
+ /*
+ * remove delay only if we have delay AND we
+ * have enabled tx_dejitter
+ */
+ if (delay && dsp->tx_dejitter) {
+ if (dsp_debug & DEBUG_DSP_CMX)
+ printk(KERN_DEBUG
+ "%s lowest tx_delay of %d bytes for"
+ " dsp %s are now removed.\n",
+ __func__, delay,
+ dsp->name);
+ r = dsp->tx_R;
+ rr = (r + delay) & CMX_BUFF_MASK;
+ /* delete tx-data */
+ while (r != rr) {
+ q[r] = dsp_silence;
+ r = (r+1) & CMX_BUFF_MASK;
+ }
+ /* increment rx-buffer pointer */
+ dsp->tx_R = r;
+ /* write incremented read pointer */
+ }
+ /* scroll up delays */
+ i = MAX_SECONDS_JITTER_CHECK - 1;
+ while (i) {
+ dsp->rx_delay[i] = dsp->rx_delay[i-1];
+ dsp->tx_delay[i] = dsp->tx_delay[i-1];
+ i--;
+ }
+ dsp->tx_delay[0] = CMX_BUFF_HALF; /* (infinite) delay */
+ dsp->rx_delay[0] = CMX_BUFF_HALF; /* (infinite) delay */
+ }
+ }
+
+ /* if next event would be in the past ... */
+ if ((s32)(dsp_spl_jiffies+dsp_tics-jiffies) <= 0)
+ dsp_spl_jiffies = jiffies + 1;
+ else
+ dsp_spl_jiffies += dsp_tics;
+
+ dsp_spl_tl.expires = dsp_spl_jiffies;
+ add_timer(&dsp_spl_tl);
+
+ /* unlock */
+ spin_unlock_irqrestore(&dsp_lock, flags);
+}
+
+/*
+ * audio data is transmitted from upper layer to the dsp
+ */
+void
+dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb)
+{
+ u_int w, ww;
+ u8 *d, *p;
+ int space; /* todo: , l = skb->len; */
+#ifdef CMX_TX_DEBUG
+ char debugbuf[256] = "";
+#endif
+
+ /* check if there is enough space, and then copy */
+ w = dsp->tx_W;
+ ww = dsp->tx_R;
+ p = dsp->tx_buff;
+ d = skb->data;
+ space = ww-w;
+ if (space <= 0)
+ space += CMX_BUFF_SIZE;
+ /* write-pointer should not overrun nor reach read pointer */
+ if (space-1 < skb->len)
+ /* write to the space we have left */
+ ww = (ww - 1) & CMX_BUFF_MASK;
+ else
+ /* write until all byte are copied */
+ ww = (w + skb->len) & CMX_BUFF_MASK;
+ dsp->tx_W = ww;
+
+ /* show current buffer */
+#ifdef CMX_DEBUG
+ printk(KERN_DEBUG
+ "cmx_transmit(dsp=%lx) %d bytes to 0x%x-0x%x. %s\n",
+ (u_long)dsp, (ww-w)&CMX_BUFF_MASK, w, ww, dsp->name);
+#endif
+
+ /* copy transmit data to tx-buffer */
+#ifdef CMX_TX_DEBUG
+ sprintf(debugbuf, "TX getting (%04x-%04x)%p: ", w, ww, p);
+#endif
+ while (w != ww) {
+#ifdef CMX_TX_DEBUG
+ if (strlen(debugbuf) < 48)
+ sprintf(debugbuf+strlen(debugbuf), " %02x", *d);
+#endif
+ p[w] = *d++;
+ w = (w+1) & CMX_BUFF_MASK;
+ }
+#ifdef CMX_TX_DEBUG
+ printk(KERN_DEBUG "%s\n", debugbuf);
+#endif
+
+}
+
+/*
+ * hdlc data is received from card and sent to all members.
+ */
+void
+dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb)
+{
+ struct sk_buff *nskb = NULL;
+ struct dsp_conf_member *member;
+ struct mISDNhead *hh;
+
+ /* not if not active */
+ if (!dsp->b_active)
+ return;
+
+ /* check if we have sompen */
+ if (skb->len < 1)
+ return;
+
+ /* no conf */
+ if (!dsp->conf) {
+ /* in case of hardware (echo) */
+ if (dsp->pcm_slot_tx >= 0)
+ return;
+ if (dsp->echo)
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (nskb) {
+ hh = mISDN_HEAD_P(nskb);
+ hh->prim = PH_DATA_REQ;
+ hh->id = 0;
+ skb_queue_tail(&dsp->sendq, nskb);
+ schedule_work(&dsp->workq);
+ }
+ return;
+ }
+ /* in case of hardware conference */
+ if (dsp->conf->hardware)
+ return;
+ list_for_each_entry(member, &dsp->conf->mlist, list) {
+ if (dsp->echo || member->dsp != dsp) {
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (nskb) {
+ hh = mISDN_HEAD_P(nskb);
+ hh->prim = PH_DATA_REQ;
+ hh->id = 0;
+ skb_queue_tail(&member->dsp->sendq, nskb);
+ schedule_work(&member->dsp->workq);
+ }
+ }
+ }
+}
+
+
--- /dev/null
+/*
+ * Author Andreas Eversberg (jolly@eversberg.eu)
+ * Based on source code structure by
+ * Karsten Keil (keil@isdn4linux.de)
+ *
+ * This file is (c) under GNU PUBLIC LICENSE
+ * For changes and modifications please read
+ * ../../../Documentation/isdn/mISDN.cert
+ *
+ * Thanks to Karsten Keil (great drivers)
+ * Cologne Chip (great chips)
+ *
+ * This module does:
+ * Real-time tone generation
+ * DTMF detection
+ * Real-time cross-connection and conferrence
+ * Compensate jitter due to system load and hardware fault.
+ * All features are done in kernel space and will be realized
+ * using hardware, if available and supported by chip set.
+ * Blowfish encryption/decryption
+ */
+
+/* STRUCTURE:
+ *
+ * The dsp module provides layer 2 for b-channels (64kbit). It provides
+ * transparent audio forwarding with special digital signal processing:
+ *
+ * - (1) generation of tones
+ * - (2) detection of dtmf tones
+ * - (3) crossconnecting and conferences (clocking)
+ * - (4) echo generation for delay test
+ * - (5) volume control
+ * - (6) disable receive data
+ * - (7) pipeline
+ * - (8) encryption/decryption
+ *
+ * Look:
+ * TX RX
+ * ------upper layer------
+ * | ^
+ * | |(6)
+ * v |
+ * +-----+-------------+-----+
+ * |(3)(4) |
+ * | CMX |
+ * | |
+ * | +-------------+
+ * | | ^
+ * | | |
+ * |+---------+| +----+----+
+ * ||(1) || |(2) |
+ * || || | |
+ * || Tones || | DTMF |
+ * || || | |
+ * || || | |
+ * |+----+----+| +----+----+
+ * +-----+-----+ ^
+ * | |
+ * v |
+ * +----+----+ +----+----+
+ * |(5) | |(5) |
+ * | | | |
+ * |TX Volume| |RX Volume|
+ * | | | |
+ * | | | |
+ * +----+----+ +----+----+
+ * | ^
+ * | |
+ * v |
+ * +----+-------------+----+
+ * |(7) |
+ * | |
+ * | Pipeline Processing |
+ * | |
+ * | |
+ * +----+-------------+----+
+ * | ^
+ * | |
+ * v |
+ * +----+----+ +----+----+
+ * |(8) | |(8) |
+ * | | | |
+ * | Encrypt | | Decrypt |
+ * | | | |
+ * | | | |
+ * +----+----+ +----+----+
+ * | ^
+ * | |
+ * v |
+ * ------card layer------
+ * TX RX
+ *
+ * Above you can see the logical data flow. If software is used to do the
+ * process, it is actually the real data flow. If hardware is used, data
+ * may not flow, but hardware commands to the card, to provide the data flow
+ * as shown.
+ *
+ * NOTE: The channel must be activated in order to make dsp work, even if
+ * no data flow to the upper layer is intended. Activation can be done
+ * after and before controlling the setting using PH_CONTROL requests.
+ *
+ * DTMF: Will be detected by hardware if possible. It is done before CMX
+ * processing.
+ *
+ * Tones: Will be generated via software if endless looped audio fifos are
+ * not supported by hardware. Tones will override all data from CMX.
+ * It is not required to join a conference to use tones at any time.
+ *
+ * CMX: Is transparent when not used. When it is used, it will do
+ * crossconnections and conferences via software if not possible through
+ * hardware. If hardware capability is available, hardware is used.
+ *
+ * Echo: Is generated by CMX and is used to check performane of hard and
+ * software CMX.
+ *
+ * The CMX has special functions for conferences with one, two and more
+ * members. It will allow different types of data flow. Receive and transmit
+ * data to/form upper layer may be swithed on/off individually without loosing
+ * features of CMX, Tones and DTMF.
+ *
+ * Echo Cancellation: Sometimes we like to cancel echo from the interface.
+ * Note that a VoIP call may not have echo caused by the IP phone. The echo
+ * is generated by the telephone line connected to it. Because the delay
+ * is high, it becomes an echo. RESULT: Echo Cachelation is required if
+ * both echo AND delay is applied to an interface.
+ * Remember that software CMX always generates a more or less delay.
+ *
+ * If all used features can be realized in hardware, and if transmit and/or
+ * receive data ist disabled, the card may not send/receive any data at all.
+ * Not receiving is usefull if only announcements are played. Not sending is
+ * usefull if an answering machine records audio. Not sending and receiving is
+ * usefull during most states of the call. If supported by hardware, tones
+ * will be played without cpu load. Small PBXs and NT-Mode applications will
+ * not need expensive hardware when processing calls.
+ *
+ *
+ * LOCKING:
+ *
+ * When data is received from upper or lower layer (card), the complete dsp
+ * module is locked by a global lock. This lock MUST lock irq, because it
+ * must lock timer events by DSP poll timer.
+ * When data is ready to be transmitted down, the data is queued and sent
+ * outside lock and timer event.
+ * PH_CONTROL must not change any settings, join or split conference members
+ * during process of data.
+ *
+ * HDLC:
+ *
+ * It works quite the same as transparent, except that HDLC data is forwarded
+ * to all other conference members if no hardware bridging is possible.
+ * Send data will be writte to sendq. Sendq will be sent if confirm is received.
+ * Conference cannot join, if one member is not hdlc.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include "core.h"
+#include "dsp.h"
+
+const char *mISDN_dsp_revision = "2.0";
+
+static int debug;
+static int options;
+static int poll;
+static int dtmfthreshold = 100;
+
+MODULE_AUTHOR("Andreas Eversberg");
+module_param(debug, uint, S_IRUGO | S_IWUSR);
+module_param(options, uint, S_IRUGO | S_IWUSR);
+module_param(poll, uint, S_IRUGO | S_IWUSR);
+module_param(dtmfthreshold, uint, S_IRUGO | S_IWUSR);
+MODULE_LICENSE("GPL");
+
+/*int spinnest = 0;*/
+
+spinlock_t dsp_lock; /* global dsp lock */
+struct list_head dsp_ilist;
+struct list_head conf_ilist;
+int dsp_debug;
+int dsp_options;
+int dsp_poll, dsp_tics;
+
+/* check if rx may be turned off or must be turned on */
+static void
+dsp_rx_off_member(struct dsp *dsp)
+{
+ struct mISDN_ctrl_req cq;
+ int rx_off = 1;
+
+ if (!dsp->features_rx_off)
+ return;
+
+ /* not disabled */
+ if (!dsp->rx_disabled)
+ rx_off = 0;
+ /* software dtmf */
+ else if (dsp->dtmf.software)
+ rx_off = 0;
+ /* echo in software */
+ else if (dsp->echo && dsp->pcm_slot_tx < 0)
+ rx_off = 0;
+ /* bridge in software */
+ else if (dsp->conf) {
+ if (dsp->conf->software)
+ rx_off = 0;
+ }
+
+ if (rx_off == dsp->rx_is_off)
+ return;
+
+ if (!dsp->ch.peer) {
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: no peer, no rx_off\n",
+ __func__);
+ return;
+ }
+ cq.op = MISDN_CTRL_RX_OFF;
+ cq.p1 = rx_off;
+ if (dsp->ch.peer->ctrl(dsp->ch.peer, CONTROL_CHANNEL, &cq)) {
+ printk(KERN_DEBUG "%s: 2nd CONTROL_CHANNEL failed\n",
+ __func__);
+ return;
+ }
+ dsp->rx_is_off = rx_off;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: %s set rx_off = %d\n",
+ __func__, dsp->name, rx_off);
+}
+static void
+dsp_rx_off(struct dsp *dsp)
+{
+ struct dsp_conf_member *member;
+
+ if (dsp_options & DSP_OPT_NOHARDWARE)
+ return;
+
+ /* no conf */
+ if (!dsp->conf) {
+ dsp_rx_off_member(dsp);
+ return;
+ }
+ /* check all members in conf */
+ list_for_each_entry(member, &dsp->conf->mlist, list) {
+ dsp_rx_off_member(member->dsp);
+ }
+}
+
+static int
+dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb)
+{
+ struct sk_buff *nskb;
+ int ret = 0;
+ int cont;
+ u8 *data;
+ int len;
+
+ if (skb->len < sizeof(int))
+ printk(KERN_ERR "%s: PH_CONTROL message too short\n", __func__);
+ cont = *((int *)skb->data);
+ len = skb->len - sizeof(int);
+ data = skb->data + sizeof(int);
+
+ switch (cont) {
+ case DTMF_TONE_START: /* turn on DTMF */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: start dtmf\n", __func__);
+ if (len == sizeof(int)) {
+ printk(KERN_NOTICE "changing DTMF Threshold "
+ "to %d\n", *((int *)data));
+ dsp->dtmf.treshold = (*(int *)data) * 10000;
+ }
+ /* init goertzel */
+ dsp_dtmf_goertzel_init(dsp);
+
+ /* check dtmf hardware */
+ dsp_dtmf_hardware(dsp);
+ break;
+ case DTMF_TONE_STOP: /* turn off DTMF */
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: stop dtmf\n", __func__);
+ dsp->dtmf.hardware = 0;
+ dsp->dtmf.software = 0;
+ break;
+ case DSP_CONF_JOIN: /* join / update conference */
+ if (len < sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ if (*((u32 *)data) == 0)
+ goto conf_split;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: join conference %d\n",
+ __func__, *((u32 *)data));
+ ret = dsp_cmx_conf(dsp, *((u32 *)data));
+ /* dsp_cmx_hardware will also be called here */
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_CONF_SPLIT: /* remove from conference */
+conf_split:
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: release conference\n", __func__);
+ ret = dsp_cmx_conf(dsp, 0);
+ /* dsp_cmx_hardware will also be called here */
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ dsp_rx_off(dsp);
+ break;
+ case DSP_TONE_PATT_ON: /* play tone */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len < sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: turn tone 0x%x on\n",
+ __func__, *((int *)skb->data));
+ ret = dsp_tone(dsp, *((int *)data));
+ if (!ret) {
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ }
+ if (!dsp->tone.tone)
+ goto tone_off;
+ break;
+ case DSP_TONE_PATT_OFF: /* stop tone */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: turn tone off\n", __func__);
+ dsp_tone(dsp, 0);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ /* reset tx buffers (user space data) */
+tone_off:
+ dsp->rx_W = 0;
+ dsp->rx_R = 0;
+ break;
+ case DSP_VOL_CHANGE_TX: /* change volume */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len < sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->tx_volume = *((int *)data);
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: change tx vol to %d\n",
+ __func__, dsp->tx_volume);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ break;
+ case DSP_VOL_CHANGE_RX: /* change volume */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len < sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->rx_volume = *((int *)data);
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: change rx vol to %d\n",
+ __func__, dsp->tx_volume);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ break;
+ case DSP_ECHO_ON: /* enable echo */
+ dsp->echo = 1; /* soft echo */
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: enable cmx-echo\n", __func__);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_ECHO_OFF: /* disable echo */
+ dsp->echo = 0;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: disable cmx-echo\n", __func__);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_RECEIVE_ON: /* enable receive to user space */
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: enable receive to user "
+ "space\n", __func__);
+ dsp->rx_disabled = 0;
+ dsp_rx_off(dsp);
+ break;
+ case DSP_RECEIVE_OFF: /* disable receive to user space */
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: disable receive to "
+ "user space\n", __func__);
+ dsp->rx_disabled = 1;
+ dsp_rx_off(dsp);
+ break;
+ case DSP_MIX_ON: /* enable mixing of tx data */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: enable mixing of "
+ "tx-data with conf mebers\n", __func__);
+ dsp->tx_mix = 1;
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_MIX_OFF: /* disable mixing of tx data */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: disable mixing of "
+ "tx-data with conf mebers\n", __func__);
+ dsp->tx_mix = 0;
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_TXDATA_ON: /* enable txdata */
+ dsp->tx_data = 1;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: enable tx-data\n", __func__);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_TXDATA_OFF: /* disable txdata */
+ dsp->tx_data = 0;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: disable tx-data\n", __func__);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ if (dsp_debug & DEBUG_DSP_CMX)
+ dsp_cmx_debug(dsp);
+ break;
+ case DSP_DELAY: /* use delay algorithm instead of dynamic
+ jitter algorithm */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len < sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->cmx_delay = (*((int *)data)) << 3;
+ /* miliseconds to samples */
+ if (dsp->cmx_delay >= (CMX_BUFF_HALF>>1))
+ /* clip to half of maximum usable buffer
+ (half of half buffer) */
+ dsp->cmx_delay = (CMX_BUFF_HALF>>1) - 1;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: use delay algorithm to "
+ "compensate jitter (%d samples)\n",
+ __func__, dsp->cmx_delay);
+ break;
+ case DSP_JITTER: /* use dynamic jitter algorithm instead of
+ delay algorithm */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->cmx_delay = 0;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: use jitter algorithm to "
+ "compensate jitter\n", __func__);
+ break;
+ case DSP_TX_DEJITTER: /* use dynamic jitter algorithm for tx-buffer */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->tx_dejitter = 1;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: use dejitter on TX "
+ "buffer\n", __func__);
+ break;
+ case DSP_TX_DEJ_OFF: /* use tx-buffer without dejittering*/
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ dsp->tx_dejitter = 0;
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: use TX buffer without "
+ "dejittering\n", __func__);
+ break;
+ case DSP_PIPELINE_CFG:
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len > 0 && ((char *)data)[len - 1]) {
+ printk(KERN_DEBUG "%s: pipeline config string "
+ "is not NULL terminated!\n", __func__);
+ ret = -EINVAL;
+ } else {
+ dsp->pipeline.inuse = 1;
+ dsp_cmx_hardware(dsp->conf, dsp);
+ ret = dsp_pipeline_build(&dsp->pipeline,
+ len > 0 ? (char *)data : NULL);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ }
+ break;
+ case DSP_BF_ENABLE_KEY: /* turn blowfish on */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (len < 4 || len > 56) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: turn blowfish on (key "
+ "not shown)\n", __func__);
+ ret = dsp_bf_init(dsp, (u8 *)data, len);
+ /* set new cont */
+ if (!ret)
+ cont = DSP_BF_ACCEPT;
+ else
+ cont = DSP_BF_REJECT;
+ /* send indication if it worked to set it */
+ nskb = _alloc_mISDN_skb(PH_CONTROL_IND, MISDN_ID_ANY,
+ sizeof(int), &cont, GFP_ATOMIC);
+ if (nskb) {
+ if (dsp->up) {
+ if (dsp->up->send(dsp->up, nskb))
+ dev_kfree_skb(nskb);
+ } else
+ dev_kfree_skb(nskb);
+ }
+ if (!ret) {
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ }
+ break;
+ case DSP_BF_DISABLE: /* turn blowfish off */
+ if (dsp->hdlc) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: turn blowfish off\n", __func__);
+ dsp_bf_cleanup(dsp);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ break;
+ default:
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: ctrl req %x unhandled\n",
+ __func__, cont);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static void
+get_features(struct mISDNchannel *ch)
+{
+ struct dsp *dsp = container_of(ch, struct dsp, ch);
+ struct mISDN_ctrl_req cq;
+
+ if (dsp_options & DSP_OPT_NOHARDWARE)
+ return;
+ if (!ch->peer) {
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: no peer, no features\n",
+ __func__);
+ return;
+ }
+ memset(&cq, 0, sizeof(cq));
+ cq.op = MISDN_CTRL_GETOP;
+ if (ch->peer->ctrl(ch->peer, CONTROL_CHANNEL, &cq) < 0) {
+ printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n",
+ __func__);
+ return;
+ }
+ if (cq.op & MISDN_CTRL_RX_OFF)
+ dsp->features_rx_off = 1;
+ if ((cq.op & MISDN_CTRL_HW_FEATURES_OP)) {
+ cq.op = MISDN_CTRL_HW_FEATURES;
+ *((u_long *)&cq.p1) = (u_long)&dsp->features;
+ if (ch->peer->ctrl(ch->peer, CONTROL_CHANNEL, &cq)) {
+ printk(KERN_DEBUG "%s: 2nd CONTROL_CHANNEL failed\n",
+ __func__);
+ }
+ } else
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: features not supported for %s\n",
+ __func__, dsp->name);
+}
+
+static int
+dsp_function(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct dsp *dsp = container_of(ch, struct dsp, ch);
+ struct mISDNhead *hh;
+ int ret = 0;
+ u8 *digits;
+ int cont;
+ struct sk_buff *nskb;
+ u_long flags;
+
+ hh = mISDN_HEAD_P(skb);
+ switch (hh->prim) {
+ /* FROM DOWN */
+ case (PH_DATA_CNF):
+ dsp->data_pending = 0;
+ /* trigger next hdlc frame, if any */
+ if (dsp->hdlc) {
+ spin_lock_irqsave(&dsp_lock, flags);
+ if (dsp->b_active)
+ schedule_work(&dsp->workq);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ }
+ break;
+ case (PH_DATA_IND):
+ case (DL_DATA_IND):
+ if (skb->len < 1) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp->rx_is_off) {
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: rx-data during rx_off"
+ " for %s\n",
+ __func__, dsp->name);
+ }
+ if (dsp->hdlc) {
+ /* hdlc */
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp_cmx_hdlc(dsp, skb);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ if (dsp->rx_disabled) {
+ /* if receive is not allowed */
+ break;
+ }
+ hh->prim = DL_DATA_IND;
+ if (dsp->up)
+ return dsp->up->send(dsp->up, skb);
+ break;
+ }
+
+ /* decrypt if enabled */
+ if (dsp->bf_enable)
+ dsp_bf_decrypt(dsp, skb->data, skb->len);
+ /* pipeline */
+ if (dsp->pipeline.inuse)
+ dsp_pipeline_process_rx(&dsp->pipeline, skb->data,
+ skb->len);
+ /* change volume if requested */
+ if (dsp->rx_volume)
+ dsp_change_volume(skb, dsp->rx_volume);
+
+ /* check if dtmf soft decoding is turned on */
+ if (dsp->dtmf.software) {
+ digits = dsp_dtmf_goertzel_decode(dsp, skb->data,
+ skb->len, (dsp_options&DSP_OPT_ULAW)?1:0);
+ while (*digits) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s: digit"
+ "(%c) to layer %s\n",
+ __func__, *digits, dsp->name);
+ cont = DTMF_TONE_VAL | *digits;
+ nskb = _alloc_mISDN_skb(PH_CONTROL_IND,
+ MISDN_ID_ANY, sizeof(int), &cont,
+ GFP_ATOMIC);
+ if (nskb) {
+ if (dsp->up) {
+ if (dsp->up->send(
+ dsp->up, nskb))
+ dev_kfree_skb(nskb);
+ } else
+ dev_kfree_skb(nskb);
+ }
+ digits++;
+ }
+ }
+ /* we need to process receive data if software */
+ spin_lock_irqsave(&dsp_lock, flags);
+ if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) {
+ /* process data from card at cmx */
+ dsp_cmx_receive(dsp, skb);
+ }
+ spin_unlock_irqrestore(&dsp_lock, flags);
+
+ if (dsp->rx_disabled) {
+ /* if receive is not allowed */
+ break;
+ }
+ hh->prim = DL_DATA_IND;
+ if (dsp->up)
+ return dsp->up->send(dsp->up, skb);
+ break;
+ case (PH_CONTROL_IND):
+ if (dsp_debug & DEBUG_DSP_DTMFCOEFF)
+ printk(KERN_DEBUG "%s: PH_CONTROL INDICATION "
+ "received: %x (len %d) %s\n", __func__,
+ hh->id, skb->len, dsp->name);
+ switch (hh->id) {
+ case (DTMF_HFC_COEF): /* getting coefficients */
+ if (!dsp->dtmf.hardware) {
+ if (dsp_debug & DEBUG_DSP_DTMFCOEFF)
+ printk(KERN_DEBUG "%s: ignoring DTMF "
+ "coefficients from HFC\n",
+ __func__);
+ break;
+ }
+ digits = dsp_dtmf_goertzel_decode(dsp, skb->data,
+ skb->len, 2);
+ while (*digits) {
+ int k;
+ struct sk_buff *nskb;
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s: digit"
+ "(%c) to layer %s\n",
+ __func__, *digits, dsp->name);
+ k = *digits | DTMF_TONE_VAL;
+ nskb = _alloc_mISDN_skb(PH_CONTROL_IND,
+ MISDN_ID_ANY, sizeof(int), &k,
+ GFP_ATOMIC);
+ if (nskb) {
+ if (dsp->up) {
+ if (dsp->up->send(
+ dsp->up, nskb))
+ dev_kfree_skb(nskb);
+ } else
+ dev_kfree_skb(nskb);
+ }
+ digits++;
+ }
+ break;
+ case (HFC_VOL_CHANGE_TX): /* change volume */
+ if (skb->len != sizeof(int)) {
+ ret = -EINVAL;
+ break;
+ }
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp->tx_volume = *((int *)skb->data);
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: change tx volume to "
+ "%d\n", __func__, dsp->tx_volume);
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ break;
+ default:
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: ctrl ind %x unhandled "
+ "%s\n", __func__, hh->id, dsp->name);
+ ret = -EINVAL;
+ }
+ break;
+ case (PH_ACTIVATE_IND):
+ case (PH_ACTIVATE_CNF):
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: b_channel is now active %s\n",
+ __func__, dsp->name);
+ /* bchannel now active */
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp->b_active = 1;
+ dsp->data_pending = 0;
+ dsp->rx_init = 1;
+ /* rx_W and rx_R will be adjusted on first frame */
+ dsp->rx_W = 0;
+ dsp->rx_R = 0;
+ memset(dsp->rx_buff, 0, sizeof(dsp->rx_buff));
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_dtmf_hardware(dsp);
+ dsp_rx_off(dsp);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: done with activation, sending "
+ "confirm to user space. %s\n", __func__,
+ dsp->name);
+ /* send activation to upper layer */
+ hh->prim = DL_ESTABLISH_CNF;
+ if (dsp->up)
+ return dsp->up->send(dsp->up, skb);
+ break;
+ case (PH_DEACTIVATE_IND):
+ case (PH_DEACTIVATE_CNF):
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: b_channel is now inactive %s\n",
+ __func__, dsp->name);
+ /* bchannel now inactive */
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp->b_active = 0;
+ dsp->data_pending = 0;
+ dsp_cmx_hardware(dsp->conf, dsp);
+ dsp_rx_off(dsp);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ hh->prim = DL_RELEASE_CNF;
+ if (dsp->up)
+ return dsp->up->send(dsp->up, skb);
+ break;
+ /* FROM UP */
+ case (DL_DATA_REQ):
+ case (PH_DATA_REQ):
+ if (skb->len < 1) {
+ ret = -EINVAL;
+ break;
+ }
+ if (dsp->hdlc) {
+ /* hdlc */
+ spin_lock_irqsave(&dsp_lock, flags);
+ if (dsp->b_active) {
+ skb_queue_tail(&dsp->sendq, skb);
+ schedule_work(&dsp->workq);
+ }
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ return 0;
+ }
+ /* send data to tx-buffer (if no tone is played) */
+ if (!dsp->tone.tone) {
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp_cmx_transmit(dsp, skb);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ }
+ break;
+ case (PH_CONTROL_REQ):
+ spin_lock_irqsave(&dsp_lock, flags);
+ ret = dsp_control_req(dsp, hh, skb);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ break;
+ case (DL_ESTABLISH_REQ):
+ case (PH_ACTIVATE_REQ):
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: activating b_channel %s\n",
+ __func__, dsp->name);
+ if (dsp->dtmf.hardware || dsp->dtmf.software)
+ dsp_dtmf_goertzel_init(dsp);
+ get_features(ch);
+ /* send ph_activate */
+ hh->prim = PH_ACTIVATE_REQ;
+ if (ch->peer)
+ return ch->recv(ch->peer, skb);
+ break;
+ case (DL_RELEASE_REQ):
+ case (PH_DEACTIVATE_REQ):
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: releasing b_channel %s\n",
+ __func__, dsp->name);
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp->tone.tone = 0;
+ dsp->tone.hardware = 0;
+ dsp->tone.software = 0;
+ if (timer_pending(&dsp->tone.tl))
+ del_timer(&dsp->tone.tl);
+ if (dsp->conf)
+ dsp_cmx_conf(dsp, 0); /* dsp_cmx_hardware will also be
+ called here */
+ skb_queue_purge(&dsp->sendq);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ hh->prim = PH_DEACTIVATE_REQ;
+ if (ch->peer)
+ return ch->recv(ch->peer, skb);
+ break;
+ default:
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: msg %x unhandled %s\n",
+ __func__, hh->prim, dsp->name);
+ ret = -EINVAL;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+static int
+dsp_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct dsp *dsp = container_of(ch, struct dsp, ch);
+ u_long flags;
+ int err = 0;
+
+ if (debug & DEBUG_DSP_CTRL)
+ printk(KERN_DEBUG "%s:(%x)\n", __func__, cmd);
+
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ break;
+ case CLOSE_CHANNEL:
+ if (dsp->ch.peer)
+ dsp->ch.peer->ctrl(dsp->ch.peer, CLOSE_CHANNEL, NULL);
+
+ /* wait until workqueue has finished,
+ * must lock here, or we may hit send-process currently
+ * queueing. */
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp->b_active = 0;
+ spin_unlock_irqrestore(&dsp_lock, flags);
+ /* MUST not be locked, because it waits until queue is done. */
+ cancel_work_sync(&dsp->workq);
+ spin_lock_irqsave(&dsp_lock, flags);
+ if (timer_pending(&dsp->tone.tl))
+ del_timer(&dsp->tone.tl);
+ skb_queue_purge(&dsp->sendq);
+ if (dsp_debug & DEBUG_DSP_CTRL)
+ printk(KERN_DEBUG "%s: releasing member %s\n",
+ __func__, dsp->name);
+ dsp->b_active = 0;
+ dsp_cmx_conf(dsp, 0); /* dsp_cmx_hardware will also be called
+ here */
+ dsp_pipeline_destroy(&dsp->pipeline);
+
+ if (dsp_debug & DEBUG_DSP_CTRL)
+ printk(KERN_DEBUG "%s: remove & destroy object %s\n",
+ __func__, dsp->name);
+ list_del(&dsp->list);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+
+ if (dsp_debug & DEBUG_DSP_CTRL)
+ printk(KERN_DEBUG "%s: dsp instance released\n",
+ __func__);
+ vfree(dsp);
+ module_put(THIS_MODULE);
+ break;
+ }
+ return err;
+}
+
+static void
+dsp_send_bh(struct work_struct *work)
+{
+ struct dsp *dsp = container_of(work, struct dsp, workq);
+ struct sk_buff *skb;
+ struct mISDNhead *hh;
+
+ if (dsp->hdlc && dsp->data_pending)
+ return; /* wait until data has been acknowledged */
+
+ /* send queued data */
+ while ((skb = skb_dequeue(&dsp->sendq))) {
+ /* in locked date, we must have still data in queue */
+ if (dsp->data_pending) {
+ if (dsp_debug & DEBUG_DSP_CORE)
+ printk(KERN_DEBUG "%s: fifo full %s, this is "
+ "no bug!\n", __func__, dsp->name);
+ /* flush transparent data, if not acked */
+ dev_kfree_skb(skb);
+ continue;
+ }
+ hh = mISDN_HEAD_P(skb);
+ if (hh->prim == DL_DATA_REQ) {
+ /* send packet up */
+ if (dsp->up) {
+ if (dsp->up->send(dsp->up, skb))
+ dev_kfree_skb(skb);
+ } else
+ dev_kfree_skb(skb);
+ } else {
+ /* send packet down */
+ if (dsp->ch.peer) {
+ dsp->data_pending = 1;
+ if (dsp->ch.recv(dsp->ch.peer, skb)) {
+ dev_kfree_skb(skb);
+ dsp->data_pending = 0;
+ }
+ } else
+ dev_kfree_skb(skb);
+ }
+ }
+}
+
+static int
+dspcreate(struct channel_req *crq)
+{
+ struct dsp *ndsp;
+ u_long flags;
+
+ if (crq->protocol != ISDN_P_B_L2DSP
+ && crq->protocol != ISDN_P_B_L2DSPHDLC)
+ return -EPROTONOSUPPORT;
+ ndsp = vmalloc(sizeof(struct dsp));
+ if (!ndsp) {
+ printk(KERN_ERR "%s: vmalloc struct dsp failed\n", __func__);
+ return -ENOMEM;
+ }
+ memset(ndsp, 0, sizeof(struct dsp));
+ if (dsp_debug & DEBUG_DSP_CTRL)
+ printk(KERN_DEBUG "%s: creating new dsp instance\n", __func__);
+
+ /* default enabled */
+ INIT_WORK(&ndsp->workq, (void *)dsp_send_bh);
+ skb_queue_head_init(&ndsp->sendq);
+ ndsp->ch.send = dsp_function;
+ ndsp->ch.ctrl = dsp_ctrl;
+ ndsp->up = crq->ch;
+ crq->ch = &ndsp->ch;
+ if (crq->protocol == ISDN_P_B_L2DSP) {
+ crq->protocol = ISDN_P_B_RAW;
+ ndsp->hdlc = 0;
+ } else {
+ crq->protocol = ISDN_P_B_HDLC;
+ ndsp->hdlc = 1;
+ }
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n",
+ __func__);
+
+ sprintf(ndsp->name, "DSP_C%x(0x%p)",
+ ndsp->up->st->dev->id + 1, ndsp);
+ /* set frame size to start */
+ ndsp->features.hfc_id = -1; /* current PCM id */
+ ndsp->features.pcm_id = -1; /* current PCM id */
+ ndsp->pcm_slot_rx = -1; /* current CPM slot */
+ ndsp->pcm_slot_tx = -1;
+ ndsp->pcm_bank_rx = -1;
+ ndsp->pcm_bank_tx = -1;
+ ndsp->hfc_conf = -1; /* current conference number */
+ /* set tone timer */
+ ndsp->tone.tl.function = (void *)dsp_tone_timeout;
+ ndsp->tone.tl.data = (long) ndsp;
+ init_timer(&ndsp->tone.tl);
+
+ if (dtmfthreshold < 20 || dtmfthreshold > 500)
+ dtmfthreshold = 200;
+ ndsp->dtmf.treshold = dtmfthreshold*10000;
+
+ /* init pipeline append to list */
+ spin_lock_irqsave(&dsp_lock, flags);
+ dsp_pipeline_init(&ndsp->pipeline);
+ list_add_tail(&ndsp->list, &dsp_ilist);
+ spin_unlock_irqrestore(&dsp_lock, flags);
+
+ return 0;
+}
+
+
+static struct Bprotocol DSP = {
+ .Bprotocols = (1 << (ISDN_P_B_L2DSP & ISDN_P_B_MASK))
+ | (1 << (ISDN_P_B_L2DSPHDLC & ISDN_P_B_MASK)),
+ .name = "dsp",
+ .create = dspcreate
+};
+
+static int dsp_init(void)
+{
+ int err;
+ int tics;
+
+ printk(KERN_INFO "DSP modul %s\n", mISDN_dsp_revision);
+
+ dsp_options = options;
+ dsp_debug = debug;
+
+ /* set packet size */
+ dsp_poll = poll;
+ if (dsp_poll) {
+ if (dsp_poll > MAX_POLL) {
+ printk(KERN_ERR "%s: Wrong poll value (%d), use %d "
+ "maximum.\n", __func__, poll, MAX_POLL);
+ err = -EINVAL;
+ return err;
+ }
+ if (dsp_poll < 8) {
+ printk(KERN_ERR "%s: Wrong poll value (%d), use 8 "
+ "minimum.\n", __func__, dsp_poll);
+ err = -EINVAL;
+ return err;
+ }
+ dsp_tics = poll * HZ / 8000;
+ if (dsp_tics * 8000 != poll * HZ) {
+ printk(KERN_INFO "mISDN_dsp: Cannot clock every %d "
+ "samples (0,125 ms). It is not a multiple of "
+ "%d HZ.\n", poll, HZ);
+ err = -EINVAL;
+ return err;
+ }
+ } else {
+ poll = 8;
+ while (poll <= MAX_POLL) {
+ tics = poll * HZ / 8000;
+ if (tics * 8000 == poll * HZ) {
+ dsp_tics = tics;
+ dsp_poll = poll;
+ if (poll >= 64)
+ break;
+ }
+ poll++;
+ }
+ }
+ if (dsp_poll == 0) {
+ printk(KERN_INFO "mISDN_dsp: There is no multiple of kernel "
+ "clock that equals exactly the duration of 8-256 "
+ "samples. (Choose kernel clock speed like 100, 250, "
+ "300, 1000)\n");
+ err = -EINVAL;
+ return err;
+ }
+ printk(KERN_INFO "mISDN_dsp: DSP clocks every %d samples. This equals "
+ "%d jiffies.\n", dsp_poll, dsp_tics);
+
+ spin_lock_init(&dsp_lock);
+ INIT_LIST_HEAD(&dsp_ilist);
+ INIT_LIST_HEAD(&conf_ilist);
+
+ /* init conversion tables */
+ dsp_audio_generate_law_tables();
+ dsp_silence = (dsp_options&DSP_OPT_ULAW)?0xff:0x2a;
+ dsp_audio_law_to_s32 = (dsp_options&DSP_OPT_ULAW)?dsp_audio_ulaw_to_s32:
+ dsp_audio_alaw_to_s32;
+ dsp_audio_generate_s2law_table();
+ dsp_audio_generate_seven();
+ dsp_audio_generate_mix_table();
+ if (dsp_options & DSP_OPT_ULAW)
+ dsp_audio_generate_ulaw_samples();
+ dsp_audio_generate_volume_changes();
+
+ err = dsp_pipeline_module_init();
+ if (err) {
+ printk(KERN_ERR "mISDN_dsp: Can't initialize pipeline, "
+ "error(%d)\n", err);
+ return err;
+ }
+
+ err = mISDN_register_Bprotocol(&DSP);
+ if (err) {
+ printk(KERN_ERR "Can't register %s error(%d)\n", DSP.name, err);
+ return err;
+ }
+
+ /* set sample timer */
+ dsp_spl_tl.function = (void *)dsp_cmx_send;
+ dsp_spl_tl.data = 0;
+ init_timer(&dsp_spl_tl);
+ dsp_spl_tl.expires = jiffies + dsp_tics;
+ dsp_spl_jiffies = dsp_spl_tl.expires;
+ add_timer(&dsp_spl_tl);
+
+ return 0;
+}
+
+
+static void dsp_cleanup(void)
+{
+ mISDN_unregister_Bprotocol(&DSP);
+
+ if (timer_pending(&dsp_spl_tl))
+ del_timer(&dsp_spl_tl);
+
+ if (!list_empty(&dsp_ilist)) {
+ printk(KERN_ERR "mISDN_dsp: Audio DSP object inst list not "
+ "empty.\n");
+ }
+ if (!list_empty(&conf_ilist)) {
+ printk(KERN_ERR "mISDN_dsp: Conference list not empty. Not "
+ "all memory freed.\n");
+ }
+
+ dsp_pipeline_module_exit();
+}
+
+module_init(dsp_init);
+module_exit(dsp_cleanup);
+
--- /dev/null
+/*
+ * DTMF decoder.
+ *
+ * Copyright by Andreas Eversberg (jolly@eversberg.eu)
+ * based on different decoders such as ISDN4Linux
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "core.h"
+#include "dsp.h"
+
+#define NCOEFF 8 /* number of frequencies to be analyzed */
+
+/* For DTMF recognition:
+ * 2 * cos(2 * PI * k / N) precalculated for all k
+ */
+static u64 cos2pik[NCOEFF] =
+{
+ /* k << 15 (source: hfc-4s/8s documentation (www.colognechip.de)) */
+ 55960, 53912, 51402, 48438, 38146, 32650, 26170, 18630
+};
+
+/* digit matrix */
+static char dtmf_matrix[4][4] =
+{
+ {'1', '2', '3', 'A'},
+ {'4', '5', '6', 'B'},
+ {'7', '8', '9', 'C'},
+ {'*', '0', '#', 'D'}
+};
+
+/* dtmf detection using goertzel algorithm
+ * init function
+ */
+void dsp_dtmf_goertzel_init(struct dsp *dsp)
+{
+ dsp->dtmf.size = 0;
+ dsp->dtmf.lastwhat = '\0';
+ dsp->dtmf.lastdigit = '\0';
+ dsp->dtmf.count = 0;
+}
+
+/* check for hardware or software features
+ */
+void dsp_dtmf_hardware(struct dsp *dsp)
+{
+ int hardware = 1;
+
+ if (!dsp->features.hfc_dtmf)
+ hardware = 0;
+
+ /* check for volume change */
+ if (dsp->tx_volume) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, "
+ "because tx_volume is changed\n",
+ __func__, dsp->name);
+ hardware = 0;
+ }
+ if (dsp->rx_volume) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, "
+ "because rx_volume is changed\n",
+ __func__, dsp->name);
+ hardware = 0;
+ }
+ /* check if encryption is enabled */
+ if (dsp->bf_enable) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, "
+ "because encryption is enabled\n",
+ __func__, dsp->name);
+ hardware = 0;
+ }
+ /* check if pipeline exists */
+ if (dsp->pipeline.inuse) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, "
+ "because pipeline exists.\n",
+ __func__, dsp->name);
+ hardware = 0;
+ }
+
+ dsp->dtmf.hardware = hardware;
+ dsp->dtmf.software = !hardware;
+}
+
+
+/*************************************************************
+ * calculate the coefficients of the given sample and decode *
+ *************************************************************/
+
+/* the given sample is decoded. if the sample is not long enough for a
+ * complete frame, the decoding is finished and continued with the next
+ * call of this function.
+ *
+ * the algorithm is very good for detection with a minimum of errors. i
+ * tested it allot. it even works with very short tones (40ms). the only
+ * disadvantage is, that it doesn't work good with different volumes of both
+ * tones. this will happen, if accoustically coupled dialers are used.
+ * it sometimes detects tones during speach, which is normal for decoders.
+ * use sequences to given commands during calls.
+ *
+ * dtmf - points to a structure of the current dtmf state
+ * spl and len - the sample
+ * fmt - 0 = alaw, 1 = ulaw, 2 = coefficients from HFC DTMF hw-decoder
+ */
+
+u8
+*dsp_dtmf_goertzel_decode(struct dsp *dsp, u8 *data, int len, int fmt)
+{
+ u8 what;
+ int size;
+ signed short *buf;
+ s32 sk, sk1, sk2;
+ int k, n, i;
+ s32 *hfccoeff;
+ s32 result[NCOEFF], tresh, treshl;
+ int lowgroup, highgroup;
+ s64 cos2pik_;
+
+ dsp->dtmf.digits[0] = '\0';
+
+ /* Note: The function will loop until the buffer has not enough samples
+ * left to decode a full frame.
+ */
+again:
+ /* convert samples */
+ size = dsp->dtmf.size;
+ buf = dsp->dtmf.buffer;
+ switch (fmt) {
+ case 0: /* alaw */
+ case 1: /* ulaw */
+ while (size < DSP_DTMF_NPOINTS && len) {
+ buf[size++] = dsp_audio_law_to_s32[*data++];
+ len--;
+ }
+ break;
+
+ case 2: /* HFC coefficients */
+ default:
+ if (len < 64) {
+ if (len > 0)
+ printk(KERN_ERR "%s: coefficients have invalid "
+ "size. (is=%d < must=%d)\n",
+ __func__, len, 64);
+ return dsp->dtmf.digits;
+ }
+ hfccoeff = (s32 *)data;
+ for (k = 0; k < NCOEFF; k++) {
+ sk2 = (*hfccoeff++)>>4;
+ sk = (*hfccoeff++)>>4;
+ if (sk > 32767 || sk < -32767 || sk2 > 32767
+ || sk2 < -32767)
+ printk(KERN_WARNING
+ "DTMF-Detection overflow\n");
+ /* compute |X(k)|**2 */
+ result[k] =
+ (sk * sk) -
+ (((cos2pik[k] * sk) >> 15) * sk2) +
+ (sk2 * sk2);
+ }
+ data += 64;
+ len -= 64;
+ goto coefficients;
+ break;
+ }
+ dsp->dtmf.size = size;
+
+ if (size < DSP_DTMF_NPOINTS)
+ return dsp->dtmf.digits;
+
+ dsp->dtmf.size = 0;
+
+ /* now we have a full buffer of signed long samples - we do goertzel */
+ for (k = 0; k < NCOEFF; k++) {
+ sk = 0;
+ sk1 = 0;
+ sk2 = 0;
+ buf = dsp->dtmf.buffer;
+ cos2pik_ = cos2pik[k];
+ for (n = 0; n < DSP_DTMF_NPOINTS; n++) {
+ sk = ((cos2pik_*sk1)>>15) - sk2 + (*buf++);
+ sk2 = sk1;
+ sk1 = sk;
+ }
+ sk >>= 8;
+ sk2 >>= 8;
+ if (sk > 32767 || sk < -32767 || sk2 > 32767 || sk2 < -32767)
+ printk(KERN_WARNING "DTMF-Detection overflow\n");
+ /* compute |X(k)|**2 */
+ result[k] =
+ (sk * sk) -
+ (((cos2pik[k] * sk) >> 15) * sk2) +
+ (sk2 * sk2);
+ }
+
+ /* our (squared) coefficients have been calculated, we need to process
+ * them.
+ */
+coefficients:
+ tresh = 0;
+ for (i = 0; i < NCOEFF; i++) {
+ if (result[i] < 0)
+ result[i] = 0;
+ if (result[i] > dsp->dtmf.treshold) {
+ if (result[i] > tresh)
+ tresh = result[i];
+ }
+ }
+
+ if (tresh == 0) {
+ what = 0;
+ goto storedigit;
+ }
+
+ if (dsp_debug & DEBUG_DSP_DTMFCOEFF)
+ printk(KERN_DEBUG "a %3d %3d %3d %3d %3d %3d %3d %3d"
+ " tr:%3d r %3d %3d %3d %3d %3d %3d %3d %3d\n",
+ result[0]/10000, result[1]/10000, result[2]/10000,
+ result[3]/10000, result[4]/10000, result[5]/10000,
+ result[6]/10000, result[7]/10000, tresh/10000,
+ result[0]/(tresh/100), result[1]/(tresh/100),
+ result[2]/(tresh/100), result[3]/(tresh/100),
+ result[4]/(tresh/100), result[5]/(tresh/100),
+ result[6]/(tresh/100), result[7]/(tresh/100));
+
+ /* calc digit (lowgroup/highgroup) */
+ lowgroup = -1;
+ highgroup = -1;
+ treshl = tresh >> 3; /* tones which are not on, must be below 9 dB */
+ tresh = tresh >> 2; /* touchtones must match within 6 dB */
+ for (i = 0; i < NCOEFF; i++) {
+ if (result[i] < treshl)
+ continue; /* ignore */
+ if (result[i] < tresh) {
+ lowgroup = -1;
+ highgroup = -1;
+ break; /* noise inbetween */
+ }
+ /* good level found. This is allowed only one time per group */
+ if (i < NCOEFF/2) {
+ /* lowgroup */
+ if (lowgroup >= 0) {
+ /* Bad. Another tone found. */
+ lowgroup = -1;
+ break;
+ } else
+ lowgroup = i;
+ } else {
+ /* higroup */
+ if (highgroup >= 0) {
+ /* Bad. Another tone found. */
+ highgroup = -1;
+ break;
+ } else
+ highgroup = i-(NCOEFF/2);
+ }
+ }
+
+ /* get digit or null */
+ what = 0;
+ if (lowgroup >= 0 && highgroup >= 0)
+ what = dtmf_matrix[lowgroup][highgroup];
+
+storedigit:
+ if (what && (dsp_debug & DEBUG_DSP_DTMF))
+ printk(KERN_DEBUG "DTMF what: %c\n", what);
+
+ if (dsp->dtmf.lastwhat != what)
+ dsp->dtmf.count = 0;
+
+ /* the tone (or no tone) must remain 3 times without change */
+ if (dsp->dtmf.count == 2) {
+ if (dsp->dtmf.lastdigit != what) {
+ dsp->dtmf.lastdigit = what;
+ if (what) {
+ if (dsp_debug & DEBUG_DSP_DTMF)
+ printk(KERN_DEBUG "DTMF digit: %c\n",
+ what);
+ if ((strlen(dsp->dtmf.digits)+1)
+ < sizeof(dsp->dtmf.digits)) {
+ dsp->dtmf.digits[strlen(
+ dsp->dtmf.digits)+1] = '\0';
+ dsp->dtmf.digits[strlen(
+ dsp->dtmf.digits)] = what;
+ }
+ }
+ }
+ } else
+ dsp->dtmf.count++;
+
+ dsp->dtmf.lastwhat = what;
+
+ goto again;
+}
+
+
--- /dev/null
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * ec_disable_detector.h - A detector which should eventually meet the
+ * G.164/G.165 requirements for detecting the
+ * 2100Hz echo cancellor disable tone.
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2001 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "dsp_biquad.h"
+
+struct ec_disable_detector_state {
+ struct biquad2_state notch;
+ int notch_level;
+ int channel_level;
+ int tone_present;
+ int tone_cycle_duration;
+ int good_cycles;
+ int hit;
+};
+
+
+#define FALSE 0
+#define TRUE (!FALSE)
+
+static inline void
+echo_can_disable_detector_init(struct ec_disable_detector_state *det)
+{
+ /* Elliptic notch */
+ /* This is actually centred at 2095Hz, but gets the balance we want, due
+ to the asymmetric walls of the notch */
+ biquad2_init(&det->notch,
+ (int32_t) (-0.7600000*32768.0),
+ (int32_t) (-0.1183852*32768.0),
+ (int32_t) (-0.5104039*32768.0),
+ (int32_t) (0.1567596*32768.0),
+ (int32_t) (1.0000000*32768.0));
+
+ det->channel_level = 0;
+ det->notch_level = 0;
+ det->tone_present = FALSE;
+ det->tone_cycle_duration = 0;
+ det->good_cycles = 0;
+ det->hit = 0;
+}
+/*- End of function --------------------------------------------------------*/
+
+static inline int
+echo_can_disable_detector_update(struct ec_disable_detector_state *det,
+int16_t amp)
+{
+ int16_t notched;
+
+ notched = biquad2(&det->notch, amp);
+ /* Estimate the overall energy in the channel, and the energy in
+ the notch (i.e. overall channel energy - tone energy => noise).
+ Use abs instead of multiply for speed (is it really faster?).
+ Damp the overall energy a little more for a stable result.
+ Damp the notch energy a little less, so we don't damp out the
+ blip every time the phase reverses */
+ det->channel_level += ((abs(amp) - det->channel_level) >> 5);
+ det->notch_level += ((abs(notched) - det->notch_level) >> 4);
+ if (det->channel_level > 280) {
+ /* There is adequate energy in the channel.
+ Is it mostly at 2100Hz? */
+ if (det->notch_level*6 < det->channel_level) {
+ /* The notch says yes, so we have the tone. */
+ if (!det->tone_present) {
+ /* Do we get a kick every 450+-25ms? */
+ if (det->tone_cycle_duration >= 425*8
+ && det->tone_cycle_duration <= 475*8) {
+ det->good_cycles++;
+ if (det->good_cycles > 2)
+ det->hit = TRUE;
+ }
+ det->tone_cycle_duration = 0;
+ }
+ det->tone_present = TRUE;
+ } else
+ det->tone_present = FALSE;
+ det->tone_cycle_duration++;
+ } else {
+ det->tone_present = FALSE;
+ det->tone_cycle_duration = 0;
+ det->good_cycles = 0;
+ }
+ return det->hit;
+}
+/*- End of function --------------------------------------------------------*/
+/*- End of file ------------------------------------------------------------*/
--- /dev/null
+/*
+ * dsp_hwec.c:
+ * builtin mISDN dsp pipeline element for enabling the hw echocanceller
+ *
+ * Copyright (C) 2007, Nadi Sarrar
+ *
+ * Nadi Sarrar <nadi@beronet.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/mISDNdsp.h>
+#include <linux/mISDNif.h>
+#include "core.h"
+#include "dsp.h"
+#include "dsp_hwec.h"
+
+static struct mISDN_dsp_element_arg args[] = {
+ { "deftaps", "128", "Set the number of taps of cancellation." },
+};
+
+static struct mISDN_dsp_element dsp_hwec_p = {
+ .name = "hwec",
+ .new = NULL,
+ .free = NULL,
+ .process_tx = NULL,
+ .process_rx = NULL,
+ .num_args = sizeof(args) / sizeof(struct mISDN_dsp_element_arg),
+ .args = args,
+};
+struct mISDN_dsp_element *dsp_hwec = &dsp_hwec_p;
+
+void dsp_hwec_enable(struct dsp *dsp, const char *arg)
+{
+ int deftaps = 128,
+ len;
+ struct mISDN_ctrl_req cq;
+
+ if (!dsp) {
+ printk(KERN_ERR "%s: failed to enable hwec: dsp is NULL\n",
+ __func__);
+ return;
+ }
+
+ if (!arg)
+ goto _do;
+
+ len = strlen(arg);
+ if (!len)
+ goto _do;
+
+ {
+ char _dup[len + 1];
+ char *dup, *tok, *name, *val;
+ int tmp;
+
+ strcpy(_dup, arg);
+ dup = _dup;
+
+ while ((tok = strsep(&dup, ","))) {
+ if (!strlen(tok))
+ continue;
+ name = strsep(&tok, "=");
+ val = tok;
+
+ if (!val)
+ continue;
+
+ if (!strcmp(name, "deftaps")) {
+ if (sscanf(val, "%d", &tmp) == 1)
+ deftaps = tmp;
+ }
+ }
+ }
+
+_do:
+ printk(KERN_DEBUG "%s: enabling hwec with deftaps=%d\n",
+ __func__, deftaps);
+ memset(&cq, 0, sizeof(cq));
+ cq.op = MISDN_CTRL_HFC_ECHOCAN_ON;
+ cq.p1 = deftaps;
+ if (!dsp->ch.peer->ctrl(&dsp->ch, CONTROL_CHANNEL, &cq)) {
+ printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n",
+ __func__);
+ return;
+ }
+}
+
+void dsp_hwec_disable(struct dsp *dsp)
+{
+ struct mISDN_ctrl_req cq;
+
+ if (!dsp) {
+ printk(KERN_ERR "%s: failed to disable hwec: dsp is NULL\n",
+ __func__);
+ return;
+ }
+
+ printk(KERN_DEBUG "%s: disabling hwec\n", __func__);
+ memset(&cq, 0, sizeof(cq));
+ cq.op = MISDN_CTRL_HFC_ECHOCAN_OFF;
+ if (!dsp->ch.peer->ctrl(&dsp->ch, CONTROL_CHANNEL, &cq)) {
+ printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n",
+ __func__);
+ return;
+ }
+}
+
+int dsp_hwec_init(void)
+{
+ mISDN_dsp_element_register(dsp_hwec);
+
+ return 0;
+}
+
+void dsp_hwec_exit(void)
+{
+ mISDN_dsp_element_unregister(dsp_hwec);
+}
+
--- /dev/null
+/*
+ * dsp_hwec.h
+ */
+
+extern struct mISDN_dsp_element *dsp_hwec;
+extern void dsp_hwec_enable(struct dsp *dsp, const char *arg);
+extern void dsp_hwec_disable(struct dsp *dsp);
+extern int dsp_hwec_init(void);
+extern void dsp_hwec_exit(void);
+
--- /dev/null
+/*
+ * dsp_pipeline.c: pipelined audio processing
+ *
+ * Copyright (C) 2007, Nadi Sarrar
+ *
+ * Nadi Sarrar <nadi@beronet.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "dsp.h"
+#include "dsp_hwec.h"
+
+/* uncomment for debugging */
+/*#define PIPELINE_DEBUG*/
+
+struct dsp_pipeline_entry {
+ struct mISDN_dsp_element *elem;
+ void *p;
+ struct list_head list;
+};
+struct dsp_element_entry {
+ struct mISDN_dsp_element *elem;
+ struct device dev;
+ struct list_head list;
+};
+
+static LIST_HEAD(dsp_elements);
+
+/* sysfs */
+static struct class *elements_class;
+
+static ssize_t
+attr_show_args(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct mISDN_dsp_element *elem = dev_get_drvdata(dev);
+ ssize_t len = 0;
+ int i = 0;
+
+ *buf = 0;
+ for (; i < elem->num_args; ++i)
+ len = sprintf(buf, "%sName: %s\n%s%s%sDescription: %s\n"
+ "\n", buf,
+ elem->args[i].name,
+ elem->args[i].def ? "Default: " : "",
+ elem->args[i].def ? elem->args[i].def : "",
+ elem->args[i].def ? "\n" : "",
+ elem->args[i].desc);
+
+ return len;
+}
+
+static struct device_attribute element_attributes[] = {
+ __ATTR(args, 0444, attr_show_args, NULL),
+};
+
+int mISDN_dsp_element_register(struct mISDN_dsp_element *elem)
+{
+ struct dsp_element_entry *entry;
+ int ret, i;
+
+ if (!elem)
+ return -EINVAL;
+
+ entry = kzalloc(sizeof(struct dsp_element_entry), GFP_KERNEL);
+ if (!entry)
+ return -ENOMEM;
+
+ entry->elem = elem;
+
+ entry->dev.class = elements_class;
+ dev_set_drvdata(&entry->dev, elem);
+ snprintf(entry->dev.bus_id, BUS_ID_SIZE, elem->name);
+ ret = device_register(&entry->dev);
+ if (ret) {
+ printk(KERN_ERR "%s: failed to register %s\n",
+ __func__, elem->name);
+ goto err1;
+ }
+
+ for (i = 0; i < (sizeof(element_attributes)
+ / sizeof(struct device_attribute)); ++i)
+ ret = device_create_file(&entry->dev,
+ &element_attributes[i]);
+ if (ret) {
+ printk(KERN_ERR "%s: failed to create device file\n",
+ __func__);
+ goto err2;
+ }
+
+ list_add_tail(&entry->list, &dsp_elements);
+
+ printk(KERN_DEBUG "%s: %s registered\n", __func__, elem->name);
+
+ return 0;
+
+err2:
+ device_unregister(&entry->dev);
+err1:
+ kfree(entry);
+ return ret;
+}
+EXPORT_SYMBOL(mISDN_dsp_element_register);
+
+void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem)
+{
+ struct dsp_element_entry *entry, *n;
+
+ if (!elem)
+ return;
+
+ list_for_each_entry_safe(entry, n, &dsp_elements, list)
+ if (entry->elem == elem) {
+ list_del(&entry->list);
+ device_unregister(&entry->dev);
+ kfree(entry);
+ printk(KERN_DEBUG "%s: %s unregistered\n",
+ __func__, elem->name);
+ return;
+ }
+ printk(KERN_ERR "%s: element %s not in list.\n", __func__, elem->name);
+}
+EXPORT_SYMBOL(mISDN_dsp_element_unregister);
+
+int dsp_pipeline_module_init(void)
+{
+ elements_class = class_create(THIS_MODULE, "dsp_pipeline");
+ if (IS_ERR(elements_class))
+ return PTR_ERR(elements_class);
+
+#ifdef PIPELINE_DEBUG
+ printk(KERN_DEBUG "%s: dsp pipeline module initialized\n", __func__);
+#endif
+
+ dsp_hwec_init();
+
+ return 0;
+}
+
+void dsp_pipeline_module_exit(void)
+{
+ struct dsp_element_entry *entry, *n;
+
+ dsp_hwec_exit();
+
+ class_destroy(elements_class);
+
+ list_for_each_entry_safe(entry, n, &dsp_elements, list) {
+ list_del(&entry->list);
+ printk(KERN_WARNING "%s: element was still registered: %s\n",
+ __func__, entry->elem->name);
+ kfree(entry);
+ }
+
+ printk(KERN_DEBUG "%s: dsp pipeline module exited\n", __func__);
+}
+
+int dsp_pipeline_init(struct dsp_pipeline *pipeline)
+{
+ if (!pipeline)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&pipeline->list);
+
+#ifdef PIPELINE_DEBUG
+ printk(KERN_DEBUG "%s: dsp pipeline ready\n", __func__);
+#endif
+
+ return 0;
+}
+
+static inline void _dsp_pipeline_destroy(struct dsp_pipeline *pipeline)
+{
+ struct dsp_pipeline_entry *entry, *n;
+
+ list_for_each_entry_safe(entry, n, &pipeline->list, list) {
+ list_del(&entry->list);
+ if (entry->elem == dsp_hwec)
+ dsp_hwec_disable(container_of(pipeline, struct dsp,
+ pipeline));
+ else
+ entry->elem->free(entry->p);
+ kfree(entry);
+ }
+}
+
+void dsp_pipeline_destroy(struct dsp_pipeline *pipeline)
+{
+
+ if (!pipeline)
+ return;
+
+ _dsp_pipeline_destroy(pipeline);
+
+#ifdef PIPELINE_DEBUG
+ printk(KERN_DEBUG "%s: dsp pipeline destroyed\n", __func__);
+#endif
+}
+
+int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
+{
+ int len, incomplete = 0, found = 0;
+ char *dup, *tok, *name, *args;
+ struct dsp_element_entry *entry, *n;
+ struct dsp_pipeline_entry *pipeline_entry;
+ struct mISDN_dsp_element *elem;
+
+ if (!pipeline)
+ return -EINVAL;
+
+ if (!list_empty(&pipeline->list))
+ _dsp_pipeline_destroy(pipeline);
+
+ if (!cfg)
+ return 0;
+
+ len = strlen(cfg);
+ if (!len)
+ return 0;
+
+ dup = kmalloc(len + 1, GFP_KERNEL);
+ if (!dup)
+ return 0;
+ strcpy(dup, cfg);
+ while ((tok = strsep(&dup, "|"))) {
+ if (!strlen(tok))
+ continue;
+ name = strsep(&tok, "(");
+ args = strsep(&tok, ")");
+ if (args && !*args)
+ args = 0;
+
+ list_for_each_entry_safe(entry, n, &dsp_elements, list)
+ if (!strcmp(entry->elem->name, name)) {
+ elem = entry->elem;
+
+ pipeline_entry = kmalloc(sizeof(struct
+ dsp_pipeline_entry), GFP_KERNEL);
+ if (!pipeline_entry) {
+ printk(KERN_DEBUG "%s: failed to add "
+ "entry to pipeline: %s (out of "
+ "memory)\n", __func__, elem->name);
+ incomplete = 1;
+ goto _out;
+ }
+ pipeline_entry->elem = elem;
+
+ if (elem == dsp_hwec) {
+ /* This is a hack to make the hwec
+ available as a pipeline module */
+ dsp_hwec_enable(container_of(pipeline,
+ struct dsp, pipeline), args);
+ list_add_tail(&pipeline_entry->list,
+ &pipeline->list);
+ } else {
+ pipeline_entry->p = elem->new(args);
+ if (pipeline_entry->p) {
+ list_add_tail(&pipeline_entry->
+ list, &pipeline->list);
+#ifdef PIPELINE_DEBUG
+ printk(KERN_DEBUG "%s: created "
+ "instance of %s%s%s\n",
+ __func__, name, args ?
+ " with args " : "", args ?
+ args : "");
+#endif
+ } else {
+ printk(KERN_DEBUG "%s: failed "
+ "to add entry to pipeline: "
+ "%s (new() returned NULL)\n",
+ __func__, elem->name);
+ kfree(pipeline_entry);
+ incomplete = 1;
+ }
+ }
+ found = 1;
+ break;
+ }
+
+ if (found)
+ found = 0;
+ else {
+ printk(KERN_DEBUG "%s: element not found, skipping: "
+ "%s\n", __func__, name);
+ incomplete = 1;
+ }
+ }
+
+_out:
+ if (!list_empty(&pipeline->list))
+ pipeline->inuse = 1;
+ else
+ pipeline->inuse = 0;
+
+#ifdef PIPELINE_DEBUG
+ printk(KERN_DEBUG "%s: dsp pipeline built%s: %s\n",
+ __func__, incomplete ? " incomplete" : "", cfg);
+#endif
+ kfree(dup);
+ return 0;
+}
+
+void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data, int len)
+{
+ struct dsp_pipeline_entry *entry;
+
+ if (!pipeline)
+ return;
+
+ list_for_each_entry(entry, &pipeline->list, list)
+ if (entry->elem->process_tx)
+ entry->elem->process_tx(entry->p, data, len);
+}
+
+void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, int len)
+{
+ struct dsp_pipeline_entry *entry;
+
+ if (!pipeline)
+ return;
+
+ list_for_each_entry_reverse(entry, &pipeline->list, list)
+ if (entry->elem->process_rx)
+ entry->elem->process_rx(entry->p, data, len);
+}
+
+
--- /dev/null
+/*
+ * Audio support data for ISDN4Linux.
+ *
+ * Copyright Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include <linux/mISDNdsp.h>
+#include "core.h"
+#include "dsp.h"
+
+
+#define DATA_S sample_silence
+#define SIZE_S (&sizeof_silence)
+#define DATA_GA sample_german_all
+#define SIZE_GA (&sizeof_german_all)
+#define DATA_GO sample_german_old
+#define SIZE_GO (&sizeof_german_old)
+#define DATA_DT sample_american_dialtone
+#define SIZE_DT (&sizeof_american_dialtone)
+#define DATA_RI sample_american_ringing
+#define SIZE_RI (&sizeof_american_ringing)
+#define DATA_BU sample_american_busy
+#define SIZE_BU (&sizeof_american_busy)
+#define DATA_S1 sample_special1
+#define SIZE_S1 (&sizeof_special1)
+#define DATA_S2 sample_special2
+#define SIZE_S2 (&sizeof_special2)
+#define DATA_S3 sample_special3
+#define SIZE_S3 (&sizeof_special3)
+
+/***************/
+/* tones loops */
+/***************/
+
+/* all tones are alaw encoded */
+/* the last sample+1 is in phase with the first sample. the error is low */
+
+static u8 sample_german_all[] = {
+ 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
+ 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
+ 0xdc, 0xfc, 0x6c,
+ 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
+ 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
+ 0xdc, 0xfc, 0x6c,
+ 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
+ 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
+ 0xdc, 0xfc, 0x6c,
+ 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d,
+ 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c,
+ 0xdc, 0xfc, 0x6c,
+};
+static u32 sizeof_german_all = sizeof(sample_german_all);
+
+static u8 sample_german_old[] = {
+ 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
+ 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
+ 0x8c,
+ 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
+ 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
+ 0x8c,
+ 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
+ 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
+ 0x8c,
+ 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed,
+ 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70,
+ 0x8c,
+};
+static u32 sizeof_german_old = sizeof(sample_german_old);
+
+static u8 sample_american_dialtone[] = {
+ 0x2a, 0x18, 0x90, 0x6c, 0x4c, 0xbc, 0x4c, 0x6c,
+ 0x10, 0x58, 0x32, 0xb9, 0x31, 0x2d, 0x8d, 0x0d,
+ 0x8d, 0x2d, 0x31, 0x99, 0x0f, 0x28, 0x60, 0xf0,
+ 0xd0, 0x50, 0xd0, 0x30, 0x60, 0x08, 0x8e, 0x67,
+ 0x09, 0x19, 0x21, 0xe1, 0xd9, 0xb9, 0x29, 0x67,
+ 0x83, 0x02, 0xce, 0xbe, 0xee, 0x1a, 0x1b, 0xef,
+ 0xbf, 0xcf, 0x03, 0x82, 0x66, 0x28, 0xb8, 0xd8,
+ 0xe0, 0x20, 0x18, 0x08, 0x66, 0x8f, 0x09, 0x61,
+ 0x31, 0xd1, 0x51, 0xd1, 0xf1, 0x61, 0x29, 0x0e,
+ 0x98, 0x30, 0x2c, 0x8c, 0x0c, 0x8c, 0x2c, 0x30,
+ 0xb8, 0x33, 0x59, 0x11, 0x6d, 0x4d, 0xbd, 0x4d,
+ 0x6d, 0x91, 0x19,
+};
+static u32 sizeof_american_dialtone = sizeof(sample_american_dialtone);
+
+static u8 sample_american_ringing[] = {
+ 0x2a, 0xe0, 0xac, 0x0c, 0xbc, 0x4c, 0x8c, 0x90,
+ 0x48, 0xc7, 0xc1, 0xed, 0xcd, 0x4d, 0xcd, 0xed,
+ 0xc1, 0xb7, 0x08, 0x30, 0xec, 0xcc, 0xcc, 0x8c,
+ 0x10, 0x58, 0x1a, 0x99, 0x71, 0xed, 0x8d, 0x8d,
+ 0x2d, 0x41, 0x89, 0x9e, 0x20, 0x70, 0x2c, 0xec,
+ 0x2c, 0x70, 0x20, 0x86, 0x77, 0xe1, 0x31, 0x11,
+ 0xd1, 0xf1, 0x81, 0x09, 0xa3, 0x56, 0x58, 0x00,
+ 0x40, 0xc0, 0x60, 0x38, 0x46, 0x43, 0x57, 0x39,
+ 0xd9, 0x59, 0x99, 0xc9, 0x77, 0x2f, 0x2e, 0xc6,
+ 0xd6, 0x28, 0xd6, 0x36, 0x26, 0x2e, 0x8a, 0xa3,
+ 0x43, 0x63, 0x4b, 0x4a, 0x62, 0x42, 0xa2, 0x8b,
+ 0x2f, 0x27, 0x37, 0xd7, 0x29, 0xd7, 0xc7, 0x2f,
+ 0x2e, 0x76, 0xc8, 0x98, 0x58, 0xd8, 0x38, 0x56,
+ 0x42, 0x47, 0x39, 0x61, 0xc1, 0x41, 0x01, 0x59,
+ 0x57, 0xa2, 0x08, 0x80, 0xf0, 0xd0, 0x10, 0x30,
+ 0xe0, 0x76, 0x87, 0x21, 0x71, 0x2d, 0xed, 0x2d,
+ 0x71, 0x21, 0x9f, 0x88, 0x40, 0x2c, 0x8c, 0x8c,
+ 0xec, 0x70, 0x98, 0x1b, 0x59, 0x11, 0x8d, 0xcd,
+ 0xcd, 0xed, 0x31, 0x09, 0xb6, 0xc0, 0xec, 0xcc,
+ 0x4c, 0xcc, 0xec, 0xc0, 0xc6, 0x49, 0x91, 0x8d,
+ 0x4d, 0xbd, 0x0d, 0xad, 0xe1,
+};
+static u32 sizeof_american_ringing = sizeof(sample_american_ringing);
+
+static u8 sample_american_busy[] = {
+ 0x2a, 0x00, 0x6c, 0x4c, 0x4c, 0x6c, 0xb0, 0x66,
+ 0x99, 0x11, 0x6d, 0x8d, 0x2d, 0x41, 0xd7, 0x96,
+ 0x60, 0xf0, 0x70, 0x40, 0x58, 0xf6, 0x53, 0x57,
+ 0x09, 0x89, 0xd7, 0x5f, 0xe3, 0x2a, 0xe3, 0x5f,
+ 0xd7, 0x89, 0x09, 0x57, 0x53, 0xf6, 0x58, 0x40,
+ 0x70, 0xf0, 0x60, 0x96, 0xd7, 0x41, 0x2d, 0x8d,
+ 0x6d, 0x11, 0x99, 0x66, 0xb0, 0x6c, 0x4c, 0x4c,
+ 0x6c, 0x00, 0x2a, 0x01, 0x6d, 0x4d, 0x4d, 0x6d,
+ 0xb1, 0x67, 0x98, 0x10, 0x6c, 0x8c, 0x2c, 0x40,
+ 0xd6, 0x97, 0x61, 0xf1, 0x71, 0x41, 0x59, 0xf7,
+ 0x52, 0x56, 0x08, 0x88, 0xd6, 0x5e, 0xe2, 0x2a,
+ 0xe2, 0x5e, 0xd6, 0x88, 0x08, 0x56, 0x52, 0xf7,
+ 0x59, 0x41, 0x71, 0xf1, 0x61, 0x97, 0xd6, 0x40,
+ 0x2c, 0x8c, 0x6c, 0x10, 0x98, 0x67, 0xb1, 0x6d,
+ 0x4d, 0x4d, 0x6d, 0x01,
+};
+static u32 sizeof_american_busy = sizeof(sample_american_busy);
+
+static u8 sample_special1[] = {
+ 0x2a, 0x2c, 0xbc, 0x6c, 0xd6, 0x71, 0xbd, 0x0d,
+ 0xd9, 0x80, 0xcc, 0x4c, 0x40, 0x39, 0x0d, 0xbd,
+ 0x11, 0x86, 0xec, 0xbc, 0xec, 0x0e, 0x51, 0xbd,
+ 0x8d, 0x89, 0x30, 0x4c, 0xcc, 0xe0, 0xe1, 0xcd,
+ 0x4d, 0x31, 0x88, 0x8c, 0xbc, 0x50, 0x0f, 0xed,
+ 0xbd, 0xed, 0x87, 0x10, 0xbc, 0x0c, 0x38, 0x41,
+ 0x4d, 0xcd, 0x81, 0xd8, 0x0c, 0xbc, 0x70, 0xd7,
+ 0x6d, 0xbd, 0x2d,
+};
+static u32 sizeof_special1 = sizeof(sample_special1);
+
+static u8 sample_special2[] = {
+ 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc,
+ 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d,
+ 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6,
+ 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0,
+ 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd,
+ 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc,
+ 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d,
+ 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6,
+ 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0,
+ 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd,
+};
+static u32 sizeof_special2 = sizeof(sample_special2);
+
+static u8 sample_special3[] = {
+ 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1,
+ 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c,
+ 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc,
+ 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7,
+ 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd,
+ 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1,
+ 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c,
+ 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc,
+ 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7,
+ 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd,
+};
+static u32 sizeof_special3 = sizeof(sample_special3);
+
+static u8 sample_silence[] = {
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+};
+static u32 sizeof_silence = sizeof(sample_silence);
+
+struct tones_samples {
+ u32 *len;
+ u8 *data;
+};
+static struct
+tones_samples samples[] = {
+ {&sizeof_german_all, sample_german_all},
+ {&sizeof_german_old, sample_german_old},
+ {&sizeof_american_dialtone, sample_american_dialtone},
+ {&sizeof_american_ringing, sample_american_ringing},
+ {&sizeof_american_busy, sample_american_busy},
+ {&sizeof_special1, sample_special1},
+ {&sizeof_special2, sample_special2},
+ {&sizeof_special3, sample_special3},
+ {NULL, NULL},
+};
+
+/***********************************
+ * generate ulaw from alaw samples *
+ ***********************************/
+
+void
+dsp_audio_generate_ulaw_samples(void)
+{
+ int i, j;
+
+ i = 0;
+ while (samples[i].len) {
+ j = 0;
+ while (j < (*samples[i].len)) {
+ samples[i].data[j] =
+ dsp_audio_alaw_to_ulaw[samples[i].data[j]];
+ j++;
+ }
+ i++;
+ }
+}
+
+
+/****************************
+ * tone sequence definition *
+ ****************************/
+
+struct pattern {
+ int tone;
+ u8 *data[10];
+ u32 *siz[10];
+ u32 seq[10];
+} pattern[] = {
+ {TONE_GERMAN_DIALTONE,
+ {DATA_GA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {1900, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDDIALTONE,
+ {DATA_GO, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {1998, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_DIALTONE,
+ {DATA_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_DIALPBX,
+ {DATA_GA, DATA_S, DATA_GA, DATA_S, DATA_GA, DATA_S, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, 0, 0, 0, 0},
+ {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDDIALPBX,
+ {DATA_GO, DATA_S, DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0},
+ {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_DIALPBX,
+ {DATA_DT, DATA_S, DATA_DT, DATA_S, DATA_DT, DATA_S, 0, 0, 0, 0},
+ {SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, 0, 0, 0, 0},
+ {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_RINGING,
+ {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDRINGING,
+ {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {8000, 40000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_RINGING,
+ {DATA_RI, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_RI, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_RINGPBX,
+ {DATA_GA, DATA_S, DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDRINGPBX,
+ {DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_RINGPBX,
+ {DATA_RI, DATA_S, DATA_RI, DATA_S, 0, 0, 0, 0, 0, 0},
+ {SIZE_RI, SIZE_S, SIZE_RI, SIZE_S, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_BUSY,
+ {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDBUSY,
+ {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_BUSY,
+ {DATA_BU, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_BU, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_HANGUP,
+ {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_OLDHANGUP,
+ {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_AMERICAN_HANGUP,
+ {DATA_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_SPECIAL_INFO,
+ {DATA_S1, DATA_S2, DATA_S3, DATA_S, 0, 0, 0, 0, 0, 0},
+ {SIZE_S1, SIZE_S2, SIZE_S3, SIZE_S, 0, 0, 0, 0, 0, 0},
+ {2666, 2666, 2666, 8002, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_GASSENBESETZT,
+ {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0},
+ {2000, 2000, 0, 0, 0, 0, 0, 0, 0, 0} },
+
+ {TONE_GERMAN_AUFSCHALTTON,
+ {DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0},
+ {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0},
+ {1000, 5000, 1000, 17000, 0, 0, 0, 0, 0, 0} },
+
+ {0,
+ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
+};
+
+/******************
+ * copy tone data *
+ ******************/
+
+/* an sk_buff is generated from the number of samples needed.
+ * the count will be changed and may begin from 0 each pattern period.
+ * the clue is to precalculate the pointers and legths to use only one
+ * memcpy per function call, or two memcpy if the tone sequence changes.
+ *
+ * pattern - the type of the pattern
+ * count - the sample from the beginning of the pattern (phase)
+ * len - the number of bytes
+ *
+ * return - the sk_buff with the sample
+ *
+ * if tones has finished (e.g. knocking tone), dsp->tones is turned off
+ */
+void dsp_tone_copy(struct dsp *dsp, u8 *data, int len)
+{
+ int index, count, start, num;
+ struct pattern *pat;
+ struct dsp_tone *tone = &dsp->tone;
+
+ /* if we have no tone, we copy silence */
+ if (!tone->tone) {
+ memset(data, dsp_silence, len);
+ return;
+ }
+
+ /* process pattern */
+ pat = (struct pattern *)tone->pattern;
+ /* points to the current pattern */
+ index = tone->index; /* gives current sequence index */
+ count = tone->count; /* gives current sample */
+
+ /* copy sample */
+ while (len) {
+ /* find sample to start with */
+ while (42) {
+ /* warp arround */
+ if (!pat->seq[index]) {
+ count = 0;
+ index = 0;
+ }
+ /* check if we are currently playing this tone */
+ if (count < pat->seq[index])
+ break;
+ if (dsp_debug & DEBUG_DSP_TONE)
+ printk(KERN_DEBUG "%s: reaching next sequence "
+ "(index=%d)\n", __func__, index);
+ count -= pat->seq[index];
+ index++;
+ }
+ /* calculate start and number of samples */
+ start = count % (*(pat->siz[index]));
+ num = len;
+ if (num+count > pat->seq[index])
+ num = pat->seq[index] - count;
+ if (num+start > (*(pat->siz[index])))
+ num = (*(pat->siz[index])) - start;
+ /* copy memory */
+ memcpy(data, pat->data[index]+start, num);
+ /* reduce length */
+ data += num;
+ count += num;
+ len -= num;
+ }
+ tone->index = index;
+ tone->count = count;
+
+ /* return sk_buff */
+ return;
+}
+
+
+/*******************************
+ * send HW message to hfc card *
+ *******************************/
+
+static void
+dsp_tone_hw_message(struct dsp *dsp, u8 *sample, int len)
+{
+ struct sk_buff *nskb;
+
+ /* unlocking is not required, because we don't expect a response */
+ nskb = _alloc_mISDN_skb(PH_CONTROL_REQ,
+ (len)?HFC_SPL_LOOP_ON:HFC_SPL_LOOP_OFF, len, sample,
+ GFP_ATOMIC);
+ if (nskb) {
+ if (dsp->ch.peer) {
+ if (dsp->ch.recv(dsp->ch.peer, nskb))
+ dev_kfree_skb(nskb);
+ } else
+ dev_kfree_skb(nskb);
+ }
+}
+
+
+/*****************
+ * timer expires *
+ *****************/
+void
+dsp_tone_timeout(void *arg)
+{
+ struct dsp *dsp = arg;
+ struct dsp_tone *tone = &dsp->tone;
+ struct pattern *pat = (struct pattern *)tone->pattern;
+ int index = tone->index;
+
+ if (!tone->tone)
+ return;
+
+ index++;
+ if (!pat->seq[index])
+ index = 0;
+ tone->index = index;
+
+ /* set next tone */
+ if (pat->data[index] == DATA_S)
+ dsp_tone_hw_message(dsp, 0, 0);
+ else
+ dsp_tone_hw_message(dsp, pat->data[index], *(pat->siz[index]));
+ /* set timer */
+ init_timer(&tone->tl);
+ tone->tl.expires = jiffies + (pat->seq[index] * HZ) / 8000;
+ add_timer(&tone->tl);
+}
+
+
+/********************
+ * set/release tone *
+ ********************/
+
+/*
+ * tones are relaized by streaming or by special loop commands if supported
+ * by hardware. when hardware is used, the patterns will be controlled by
+ * timers.
+ */
+int
+dsp_tone(struct dsp *dsp, int tone)
+{
+ struct pattern *pat;
+ int i;
+ struct dsp_tone *tonet = &dsp->tone;
+
+ tonet->software = 0;
+ tonet->hardware = 0;
+
+ /* we turn off the tone */
+ if (!tone) {
+ if (dsp->features.hfc_loops)
+ if (timer_pending(&tonet->tl))
+ del_timer(&tonet->tl);
+ if (dsp->features.hfc_loops)
+ dsp_tone_hw_message(dsp, NULL, 0);
+ tonet->tone = 0;
+ return 0;
+ }
+
+ pat = NULL;
+ i = 0;
+ while (pattern[i].tone) {
+ if (pattern[i].tone == tone) {
+ pat = &pattern[i];
+ break;
+ }
+ i++;
+ }
+ if (!pat) {
+ printk(KERN_WARNING "dsp: given tone 0x%x is invalid\n", tone);
+ return -EINVAL;
+ }
+ if (dsp_debug & DEBUG_DSP_TONE)
+ printk(KERN_DEBUG "%s: now starting tone %d (index=%d)\n",
+ __func__, tone, 0);
+ tonet->tone = tone;
+ tonet->pattern = pat;
+ tonet->index = 0;
+ tonet->count = 0;
+
+ if (dsp->features.hfc_loops) {
+ tonet->hardware = 1;
+ /* set first tone */
+ dsp_tone_hw_message(dsp, pat->data[0], *(pat->siz[0]));
+ /* set timer */
+ if (timer_pending(&tonet->tl))
+ del_timer(&tonet->tl);
+ init_timer(&tonet->tl);
+ tonet->tl.expires = jiffies + (pat->seq[0] * HZ) / 8000;
+ add_timer(&tonet->tl);
+ } else {
+ tonet->software = 1;
+ }
+
+ return 0;
+}
+
+
+
+
+
--- /dev/null
+/*
+ * finite state machine implementation
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Thanks to Jan den Ouden
+ * Fritz Elfert
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include "fsm.h"
+
+#define FSM_TIMER_DEBUG 0
+
+void
+mISDN_FsmNew(struct Fsm *fsm,
+ struct FsmNode *fnlist, int fncount)
+{
+ int i;
+
+ fsm->jumpmatrix = kzalloc(sizeof(FSMFNPTR) * fsm->state_count *
+ fsm->event_count, GFP_KERNEL);
+
+ for (i = 0; i < fncount; i++)
+ if ((fnlist[i].state >= fsm->state_count) ||
+ (fnlist[i].event >= fsm->event_count)) {
+ printk(KERN_ERR
+ "mISDN_FsmNew Error: %d st(%ld/%ld) ev(%ld/%ld)\n",
+ i, (long)fnlist[i].state, (long)fsm->state_count,
+ (long)fnlist[i].event, (long)fsm->event_count);
+ } else
+ fsm->jumpmatrix[fsm->state_count * fnlist[i].event +
+ fnlist[i].state] = (FSMFNPTR) fnlist[i].routine;
+}
+EXPORT_SYMBOL(mISDN_FsmNew);
+
+void
+mISDN_FsmFree(struct Fsm *fsm)
+{
+ kfree((void *) fsm->jumpmatrix);
+}
+EXPORT_SYMBOL(mISDN_FsmFree);
+
+int
+mISDN_FsmEvent(struct FsmInst *fi, int event, void *arg)
+{
+ FSMFNPTR r;
+
+ if ((fi->state >= fi->fsm->state_count) ||
+ (event >= fi->fsm->event_count)) {
+ printk(KERN_ERR
+ "mISDN_FsmEvent Error st(%ld/%ld) ev(%d/%ld)\n",
+ (long)fi->state, (long)fi->fsm->state_count, event,
+ (long)fi->fsm->event_count);
+ return 1;
+ }
+ r = fi->fsm->jumpmatrix[fi->fsm->state_count * event + fi->state];
+ if (r) {
+ if (fi->debug)
+ fi->printdebug(fi, "State %s Event %s",
+ fi->fsm->strState[fi->state],
+ fi->fsm->strEvent[event]);
+ r(fi, event, arg);
+ return 0;
+ } else {
+ if (fi->debug)
+ fi->printdebug(fi, "State %s Event %s no action",
+ fi->fsm->strState[fi->state],
+ fi->fsm->strEvent[event]);
+ return 1;
+ }
+}
+EXPORT_SYMBOL(mISDN_FsmEvent);
+
+void
+mISDN_FsmChangeState(struct FsmInst *fi, int newstate)
+{
+ fi->state = newstate;
+ if (fi->debug)
+ fi->printdebug(fi, "ChangeState %s",
+ fi->fsm->strState[newstate]);
+}
+EXPORT_SYMBOL(mISDN_FsmChangeState);
+
+static void
+FsmExpireTimer(struct FsmTimer *ft)
+{
+#if FSM_TIMER_DEBUG
+ if (ft->fi->debug)
+ ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft);
+#endif
+ mISDN_FsmEvent(ft->fi, ft->event, ft->arg);
+}
+
+void
+mISDN_FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft)
+{
+ ft->fi = fi;
+ ft->tl.function = (void *) FsmExpireTimer;
+ ft->tl.data = (long) ft;
+#if FSM_TIMER_DEBUG
+ if (ft->fi->debug)
+ ft->fi->printdebug(ft->fi, "mISDN_FsmInitTimer %lx", (long) ft);
+#endif
+ init_timer(&ft->tl);
+}
+EXPORT_SYMBOL(mISDN_FsmInitTimer);
+
+void
+mISDN_FsmDelTimer(struct FsmTimer *ft, int where)
+{
+#if FSM_TIMER_DEBUG
+ if (ft->fi->debug)
+ ft->fi->printdebug(ft->fi, "mISDN_FsmDelTimer %lx %d",
+ (long) ft, where);
+#endif
+ del_timer(&ft->tl);
+}
+EXPORT_SYMBOL(mISDN_FsmDelTimer);
+
+int
+mISDN_FsmAddTimer(struct FsmTimer *ft,
+ int millisec, int event, void *arg, int where)
+{
+
+#if FSM_TIMER_DEBUG
+ if (ft->fi->debug)
+ ft->fi->printdebug(ft->fi, "mISDN_FsmAddTimer %lx %d %d",
+ (long) ft, millisec, where);
+#endif
+
+ if (timer_pending(&ft->tl)) {
+ if (ft->fi->debug) {
+ printk(KERN_WARNING
+ "mISDN_FsmAddTimer: timer already active!\n");
+ ft->fi->printdebug(ft->fi,
+ "mISDN_FsmAddTimer already active!");
+ }
+ return -1;
+ }
+ init_timer(&ft->tl);
+ ft->event = event;
+ ft->arg = arg;
+ ft->tl.expires = jiffies + (millisec * HZ) / 1000;
+ add_timer(&ft->tl);
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_FsmAddTimer);
+
+void
+mISDN_FsmRestartTimer(struct FsmTimer *ft,
+ int millisec, int event, void *arg, int where)
+{
+
+#if FSM_TIMER_DEBUG
+ if (ft->fi->debug)
+ ft->fi->printdebug(ft->fi, "mISDN_FsmRestartTimer %lx %d %d",
+ (long) ft, millisec, where);
+#endif
+
+ if (timer_pending(&ft->tl))
+ del_timer(&ft->tl);
+ init_timer(&ft->tl);
+ ft->event = event;
+ ft->arg = arg;
+ ft->tl.expires = jiffies + (millisec * HZ) / 1000;
+ add_timer(&ft->tl);
+}
+EXPORT_SYMBOL(mISDN_FsmRestartTimer);
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Thanks to Jan den Ouden
+ * Fritz Elfert
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _MISDN_FSM_H
+#define _MISDN_FSM_H
+
+#include <linux/timer.h>
+
+/* Statemachine */
+
+struct FsmInst;
+
+typedef void (*FSMFNPTR)(struct FsmInst *, int, void *);
+
+struct Fsm {
+ FSMFNPTR *jumpmatrix;
+ int state_count, event_count;
+ char **strEvent, **strState;
+};
+
+struct FsmInst {
+ struct Fsm *fsm;
+ int state;
+ int debug;
+ void *userdata;
+ int userint;
+ void (*printdebug) (struct FsmInst *, char *, ...);
+};
+
+struct FsmNode {
+ int state, event;
+ void (*routine) (struct FsmInst *, int, void *);
+};
+
+struct FsmTimer {
+ struct FsmInst *fi;
+ struct timer_list tl;
+ int event;
+ void *arg;
+};
+
+extern void mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
+extern void mISDN_FsmFree(struct Fsm *);
+extern int mISDN_FsmEvent(struct FsmInst *, int , void *);
+extern void mISDN_FsmChangeState(struct FsmInst *, int);
+extern void mISDN_FsmInitTimer(struct FsmInst *, struct FsmTimer *);
+extern int mISDN_FsmAddTimer(struct FsmTimer *, int, int, void *, int);
+extern void mISDN_FsmRestartTimer(struct FsmTimer *, int, int, void *, int);
+extern void mISDN_FsmDelTimer(struct FsmTimer *, int);
+
+#endif
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/mISDNhw.h>
+
+static void
+dchannel_bh(struct work_struct *ws)
+{
+ struct dchannel *dch = container_of(ws, struct dchannel, workq);
+ struct sk_buff *skb;
+ int err;
+
+ if (test_and_clear_bit(FLG_RECVQUEUE, &dch->Flags)) {
+ while ((skb = skb_dequeue(&dch->rqueue))) {
+ if (likely(dch->dev.D.peer)) {
+ err = dch->dev.D.recv(dch->dev.D.peer, skb);
+ if (err)
+ dev_kfree_skb(skb);
+ } else
+ dev_kfree_skb(skb);
+ }
+ }
+ if (test_and_clear_bit(FLG_PHCHANGE, &dch->Flags)) {
+ if (dch->phfunc)
+ dch->phfunc(dch);
+ }
+}
+
+static void
+bchannel_bh(struct work_struct *ws)
+{
+ struct bchannel *bch = container_of(ws, struct bchannel, workq);
+ struct sk_buff *skb;
+ int err;
+
+ if (test_and_clear_bit(FLG_RECVQUEUE, &bch->Flags)) {
+ while ((skb = skb_dequeue(&bch->rqueue))) {
+ if (bch->rcount >= 64)
+ printk(KERN_WARNING "B-channel %p receive "
+ "queue if full, but empties...\n", bch);
+ bch->rcount--;
+ if (likely(bch->ch.peer)) {
+ err = bch->ch.recv(bch->ch.peer, skb);
+ if (err)
+ dev_kfree_skb(skb);
+ } else
+ dev_kfree_skb(skb);
+ }
+ }
+}
+
+int
+mISDN_initdchannel(struct dchannel *ch, int maxlen, void *phf)
+{
+ test_and_set_bit(FLG_HDLC, &ch->Flags);
+ ch->maxlen = maxlen;
+ ch->hw = NULL;
+ ch->rx_skb = NULL;
+ ch->tx_skb = NULL;
+ ch->tx_idx = 0;
+ ch->phfunc = phf;
+ skb_queue_head_init(&ch->squeue);
+ skb_queue_head_init(&ch->rqueue);
+ INIT_LIST_HEAD(&ch->dev.bchannels);
+ INIT_WORK(&ch->workq, dchannel_bh);
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_initdchannel);
+
+int
+mISDN_initbchannel(struct bchannel *ch, int maxlen)
+{
+ ch->Flags = 0;
+ ch->maxlen = maxlen;
+ ch->hw = NULL;
+ ch->rx_skb = NULL;
+ ch->tx_skb = NULL;
+ ch->tx_idx = 0;
+ skb_queue_head_init(&ch->rqueue);
+ ch->rcount = 0;
+ ch->next_skb = NULL;
+ INIT_WORK(&ch->workq, bchannel_bh);
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_initbchannel);
+
+int
+mISDN_freedchannel(struct dchannel *ch)
+{
+ if (ch->tx_skb) {
+ dev_kfree_skb(ch->tx_skb);
+ ch->tx_skb = NULL;
+ }
+ if (ch->rx_skb) {
+ dev_kfree_skb(ch->rx_skb);
+ ch->rx_skb = NULL;
+ }
+ skb_queue_purge(&ch->squeue);
+ skb_queue_purge(&ch->rqueue);
+ flush_scheduled_work();
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_freedchannel);
+
+int
+mISDN_freebchannel(struct bchannel *ch)
+{
+ if (ch->tx_skb) {
+ dev_kfree_skb(ch->tx_skb);
+ ch->tx_skb = NULL;
+ }
+ if (ch->rx_skb) {
+ dev_kfree_skb(ch->rx_skb);
+ ch->rx_skb = NULL;
+ }
+ if (ch->next_skb) {
+ dev_kfree_skb(ch->next_skb);
+ ch->next_skb = NULL;
+ }
+ skb_queue_purge(&ch->rqueue);
+ ch->rcount = 0;
+ flush_scheduled_work();
+ return 0;
+}
+EXPORT_SYMBOL(mISDN_freebchannel);
+
+static inline u_int
+get_sapi_tei(u_char *p)
+{
+ u_int sapi, tei;
+
+ sapi = *p >> 2;
+ tei = p[1] >> 1;
+ return sapi | (tei << 8);
+}
+
+void
+recv_Dchannel(struct dchannel *dch)
+{
+ struct mISDNhead *hh;
+
+ if (dch->rx_skb->len < 2) { /* at least 2 for sapi / tei */
+ dev_kfree_skb(dch->rx_skb);
+ dch->rx_skb = NULL;
+ return;
+ }
+ hh = mISDN_HEAD_P(dch->rx_skb);
+ hh->prim = PH_DATA_IND;
+ hh->id = get_sapi_tei(dch->rx_skb->data);
+ skb_queue_tail(&dch->rqueue, dch->rx_skb);
+ dch->rx_skb = NULL;
+ schedule_event(dch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(recv_Dchannel);
+
+void
+recv_Bchannel(struct bchannel *bch)
+{
+ struct mISDNhead *hh;
+
+ hh = mISDN_HEAD_P(bch->rx_skb);
+ hh->prim = PH_DATA_IND;
+ hh->id = MISDN_ID_ANY;
+ if (bch->rcount >= 64) {
+ dev_kfree_skb(bch->rx_skb);
+ bch->rx_skb = NULL;
+ return;
+ }
+ bch->rcount++;
+ skb_queue_tail(&bch->rqueue, bch->rx_skb);
+ bch->rx_skb = NULL;
+ schedule_event(bch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(recv_Bchannel);
+
+void
+recv_Dchannel_skb(struct dchannel *dch, struct sk_buff *skb)
+{
+ skb_queue_tail(&dch->rqueue, skb);
+ schedule_event(dch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(recv_Dchannel_skb);
+
+void
+recv_Bchannel_skb(struct bchannel *bch, struct sk_buff *skb)
+{
+ if (bch->rcount >= 64) {
+ dev_kfree_skb(skb);
+ return;
+ }
+ bch->rcount++;
+ skb_queue_tail(&bch->rqueue, skb);
+ schedule_event(bch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(recv_Bchannel_skb);
+
+static void
+confirm_Dsend(struct dchannel *dch)
+{
+ struct sk_buff *skb;
+
+ skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(dch->tx_skb),
+ 0, NULL, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_ERR "%s: no skb id %x\n", __func__,
+ mISDN_HEAD_ID(dch->tx_skb));
+ return;
+ }
+ skb_queue_tail(&dch->rqueue, skb);
+ schedule_event(dch, FLG_RECVQUEUE);
+}
+
+int
+get_next_dframe(struct dchannel *dch)
+{
+ dch->tx_idx = 0;
+ dch->tx_skb = skb_dequeue(&dch->squeue);
+ if (dch->tx_skb) {
+ confirm_Dsend(dch);
+ return 1;
+ }
+ dch->tx_skb = NULL;
+ test_and_clear_bit(FLG_TX_BUSY, &dch->Flags);
+ return 0;
+}
+EXPORT_SYMBOL(get_next_dframe);
+
+void
+confirm_Bsend(struct bchannel *bch)
+{
+ struct sk_buff *skb;
+
+ if (bch->rcount >= 64)
+ return;
+ skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(bch->tx_skb),
+ 0, NULL, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_ERR "%s: no skb id %x\n", __func__,
+ mISDN_HEAD_ID(bch->tx_skb));
+ return;
+ }
+ bch->rcount++;
+ skb_queue_tail(&bch->rqueue, skb);
+ schedule_event(bch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(confirm_Bsend);
+
+int
+get_next_bframe(struct bchannel *bch)
+{
+ bch->tx_idx = 0;
+ if (test_bit(FLG_TX_NEXT, &bch->Flags)) {
+ bch->tx_skb = bch->next_skb;
+ if (bch->tx_skb) {
+ bch->next_skb = NULL;
+ test_and_clear_bit(FLG_TX_NEXT, &bch->Flags);
+ if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
+ confirm_Bsend(bch); /* not for transparent */
+ return 1;
+ } else {
+ test_and_clear_bit(FLG_TX_NEXT, &bch->Flags);
+ printk(KERN_WARNING "B TX_NEXT without skb\n");
+ }
+ }
+ bch->tx_skb = NULL;
+ test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
+ return 0;
+}
+EXPORT_SYMBOL(get_next_bframe);
+
+void
+queue_ch_frame(struct mISDNchannel *ch, u_int pr, int id, struct sk_buff *skb)
+{
+ struct mISDNhead *hh;
+
+ if (!skb) {
+ _queue_data(ch, pr, id, 0, NULL, GFP_ATOMIC);
+ } else {
+ if (ch->peer) {
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = pr;
+ hh->id = id;
+ if (!ch->recv(ch->peer, skb))
+ return;
+ }
+ dev_kfree_skb(skb);
+ }
+}
+EXPORT_SYMBOL(queue_ch_frame);
+
+int
+dchannel_senddata(struct dchannel *ch, struct sk_buff *skb)
+{
+ /* check oversize */
+ if (skb->len <= 0) {
+ printk(KERN_WARNING "%s: skb too small\n", __func__);
+ return -EINVAL;
+ }
+ if (skb->len > ch->maxlen) {
+ printk(KERN_WARNING "%s: skb too large(%d/%d)\n",
+ __func__, skb->len, ch->maxlen);
+ return -EINVAL;
+ }
+ /* HW lock must be obtained */
+ if (test_and_set_bit(FLG_TX_BUSY, &ch->Flags)) {
+ skb_queue_tail(&ch->squeue, skb);
+ return 0;
+ } else {
+ /* write to fifo */
+ ch->tx_skb = skb;
+ ch->tx_idx = 0;
+ return 1;
+ }
+}
+EXPORT_SYMBOL(dchannel_senddata);
+
+int
+bchannel_senddata(struct bchannel *ch, struct sk_buff *skb)
+{
+
+ /* check oversize */
+ if (skb->len <= 0) {
+ printk(KERN_WARNING "%s: skb too small\n", __func__);
+ return -EINVAL;
+ }
+ if (skb->len > ch->maxlen) {
+ printk(KERN_WARNING "%s: skb too large(%d/%d)\n",
+ __func__, skb->len, ch->maxlen);
+ return -EINVAL;
+ }
+ /* HW lock must be obtained */
+ /* check for pending next_skb */
+ if (ch->next_skb) {
+ printk(KERN_WARNING
+ "%s: next_skb exist ERROR (skb->len=%d next_skb->len=%d)\n",
+ __func__, skb->len, ch->next_skb->len);
+ return -EBUSY;
+ }
+ if (test_and_set_bit(FLG_TX_BUSY, &ch->Flags)) {
+ test_and_set_bit(FLG_TX_NEXT, &ch->Flags);
+ ch->next_skb = skb;
+ return 0;
+ } else {
+ /* write to fifo */
+ ch->tx_skb = skb;
+ ch->tx_idx = 0;
+ return 1;
+ }
+}
+EXPORT_SYMBOL(bchannel_senddata);
--- /dev/null
+/*
+ * see notice in l1oip.c
+ */
+
+/* debugging */
+#define DEBUG_L1OIP_INIT 0x00010000
+#define DEBUG_L1OIP_SOCKET 0x00020000
+#define DEBUG_L1OIP_MGR 0x00040000
+#define DEBUG_L1OIP_MSG 0x00080000
+
+/* enable to disorder received bchannels by sequence 2143658798... */
+/*
+#define REORDER_DEBUG
+*/
+
+/* frames */
+#define L1OIP_MAX_LEN 2048 /* max packet size form l2 */
+#define L1OIP_MAX_PERFRAME 1400 /* max data size in one frame */
+
+
+/* timers */
+#define L1OIP_KEEPALIVE 15
+#define L1OIP_TIMEOUT 65
+
+
+/* socket */
+#define L1OIP_DEFAULTPORT 931
+
+
+/* channel structure */
+struct l1oip_chan {
+ struct dchannel *dch;
+ struct bchannel *bch;
+ u32 tx_counter; /* counts xmit bytes/packets */
+ u32 rx_counter; /* counts recv bytes/packets */
+ u32 codecstate; /* used by codec to save data */
+#ifdef REORDER_DEBUG
+ int disorder_flag;
+ struct sk_buff *disorder_skb;
+ u32 disorder_cnt;
+#endif
+};
+
+
+/* card structure */
+struct l1oip {
+ struct list_head list;
+
+ /* card */
+ int registered; /* if registered with mISDN */
+ char name[MISDN_MAX_IDLEN];
+ int idx; /* card index */
+ int pri; /* 1=pri, 0=bri */
+ int d_idx; /* current dchannel number */
+ int b_num; /* number of bchannels */
+ u32 id; /* id of connection */
+ int ondemand; /* if transmis. is on demand */
+ int bundle; /* bundle channels in one frm */
+ int codec; /* codec to use for transmis. */
+ int limit; /* limit number of bchannels */
+
+ /* timer */
+ struct timer_list keep_tl;
+ struct timer_list timeout_tl;
+ int timeout_on;
+ struct work_struct workq;
+
+ /* socket */
+ struct socket *socket; /* if set, socket is created */
+ struct completion socket_complete;/* completion of sock thread */
+ struct task_struct *socket_thread;
+ spinlock_t socket_lock; /* access sock outside thread */
+ u32 remoteip; /* if all set, ip is assigned */
+ u16 localport; /* must always be set */
+ u16 remoteport; /* must always be set */
+ struct sockaddr_in sin_local; /* local socket name */
+ struct sockaddr_in sin_remote; /* remote socket name */
+ struct msghdr sendmsg; /* ip message to send */
+ struct iovec sendiov; /* iov for message */
+
+ /* frame */
+ struct l1oip_chan chan[128]; /* channel instances */
+};
+
+extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state);
+extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result);
+extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result);
+extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result);
+extern void l1oip_4bit_free(void);
+extern int l1oip_4bit_alloc(int ulaw);
+
--- /dev/null
+/*
+
+ * l1oip_codec.c generic codec using lookup table
+ * -> conversion from a-Law to u-Law
+ * -> conversion from u-Law to a-Law
+ * -> compression by reducing the number of sample resolution to 4
+ *
+ * NOTE: It is not compatible with any standard codec like ADPCM.
+ *
+ * Author Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ */
+
+/*
+
+How the codec works:
+--------------------
+
+The volume is increased to increase the dynamic range of the audio signal.
+Each sample is converted to a-LAW with only 16 steps of level resolution.
+A pair of two samples are stored in one byte.
+
+The first byte is stored in the upper bits, the second byte is stored in the
+lower bits.
+
+To speed up compression and decompression, two lookup tables are formed:
+
+- 16 bits index for two samples (law encoded) with 8 bit compressed result.
+- 8 bits index for one compressed data with 16 bits decompressed result.
+
+NOTE: The bytes are handled as they are law-encoded.
+
+*/
+
+#include <linux/vmalloc.h>
+#include <linux/mISDNif.h>
+#include "core.h"
+
+/* definitions of codec. don't use calculations, code may run slower. */
+
+static u8 *table_com;
+static u16 *table_dec;
+
+
+/* alaw -> ulaw */
+static u8 alaw_to_ulaw[256] =
+{
+ 0xab, 0x2b, 0xe3, 0x63, 0x8b, 0x0b, 0xc9, 0x49,
+ 0xba, 0x3a, 0xf6, 0x76, 0x9b, 0x1b, 0xd7, 0x57,
+ 0xa3, 0x23, 0xdd, 0x5d, 0x83, 0x03, 0xc1, 0x41,
+ 0xb2, 0x32, 0xeb, 0x6b, 0x93, 0x13, 0xcf, 0x4f,
+ 0xaf, 0x2f, 0xe7, 0x67, 0x8f, 0x0f, 0xcd, 0x4d,
+ 0xbe, 0x3e, 0xfe, 0x7e, 0x9f, 0x1f, 0xdb, 0x5b,
+ 0xa7, 0x27, 0xdf, 0x5f, 0x87, 0x07, 0xc5, 0x45,
+ 0xb6, 0x36, 0xef, 0x6f, 0x97, 0x17, 0xd3, 0x53,
+ 0xa9, 0x29, 0xe1, 0x61, 0x89, 0x09, 0xc7, 0x47,
+ 0xb8, 0x38, 0xf2, 0x72, 0x99, 0x19, 0xd5, 0x55,
+ 0xa1, 0x21, 0xdc, 0x5c, 0x81, 0x01, 0xbf, 0x3f,
+ 0xb0, 0x30, 0xe9, 0x69, 0x91, 0x11, 0xce, 0x4e,
+ 0xad, 0x2d, 0xe5, 0x65, 0x8d, 0x0d, 0xcb, 0x4b,
+ 0xbc, 0x3c, 0xfa, 0x7a, 0x9d, 0x1d, 0xd9, 0x59,
+ 0xa5, 0x25, 0xde, 0x5e, 0x85, 0x05, 0xc3, 0x43,
+ 0xb4, 0x34, 0xed, 0x6d, 0x95, 0x15, 0xd1, 0x51,
+ 0xac, 0x2c, 0xe4, 0x64, 0x8c, 0x0c, 0xca, 0x4a,
+ 0xbb, 0x3b, 0xf8, 0x78, 0x9c, 0x1c, 0xd8, 0x58,
+ 0xa4, 0x24, 0xde, 0x5e, 0x84, 0x04, 0xc2, 0x42,
+ 0xb3, 0x33, 0xec, 0x6c, 0x94, 0x14, 0xd0, 0x50,
+ 0xb0, 0x30, 0xe8, 0x68, 0x90, 0x10, 0xce, 0x4e,
+ 0xbf, 0x3f, 0xfe, 0x7e, 0xa0, 0x20, 0xdc, 0x5c,
+ 0xa8, 0x28, 0xe0, 0x60, 0x88, 0x08, 0xc6, 0x46,
+ 0xb7, 0x37, 0xf0, 0x70, 0x98, 0x18, 0xd4, 0x54,
+ 0xaa, 0x2a, 0xe2, 0x62, 0x8a, 0x0a, 0xc8, 0x48,
+ 0xb9, 0x39, 0xf4, 0x74, 0x9a, 0x1a, 0xd6, 0x56,
+ 0xa2, 0x22, 0xdd, 0x5d, 0x82, 0x02, 0xc0, 0x40,
+ 0xb1, 0x31, 0xea, 0x6a, 0x92, 0x12, 0xcf, 0x4f,
+ 0xae, 0x2e, 0xe6, 0x66, 0x8e, 0x0e, 0xcc, 0x4c,
+ 0xbd, 0x3d, 0xfc, 0x7c, 0x9e, 0x1e, 0xda, 0x5a,
+ 0xa6, 0x26, 0xdf, 0x5f, 0x86, 0x06, 0xc4, 0x44,
+ 0xb5, 0x35, 0xee, 0x6e, 0x96, 0x16, 0xd2, 0x52
+};
+
+/* ulaw -> alaw */
+static u8 ulaw_to_alaw[256] =
+{
+ 0xab, 0x55, 0xd5, 0x15, 0x95, 0x75, 0xf5, 0x35,
+ 0xb5, 0x45, 0xc5, 0x05, 0x85, 0x65, 0xe5, 0x25,
+ 0xa5, 0x5d, 0xdd, 0x1d, 0x9d, 0x7d, 0xfd, 0x3d,
+ 0xbd, 0x4d, 0xcd, 0x0d, 0x8d, 0x6d, 0xed, 0x2d,
+ 0xad, 0x51, 0xd1, 0x11, 0x91, 0x71, 0xf1, 0x31,
+ 0xb1, 0x41, 0xc1, 0x01, 0x81, 0x61, 0xe1, 0x21,
+ 0x59, 0xd9, 0x19, 0x99, 0x79, 0xf9, 0x39, 0xb9,
+ 0x49, 0xc9, 0x09, 0x89, 0x69, 0xe9, 0x29, 0xa9,
+ 0xd7, 0x17, 0x97, 0x77, 0xf7, 0x37, 0xb7, 0x47,
+ 0xc7, 0x07, 0x87, 0x67, 0xe7, 0x27, 0xa7, 0xdf,
+ 0x9f, 0x7f, 0xff, 0x3f, 0xbf, 0x4f, 0xcf, 0x0f,
+ 0x8f, 0x6f, 0xef, 0x2f, 0x53, 0x13, 0x73, 0x33,
+ 0xb3, 0x43, 0xc3, 0x03, 0x83, 0x63, 0xe3, 0x23,
+ 0xa3, 0x5b, 0xdb, 0x1b, 0x9b, 0x7b, 0xfb, 0x3b,
+ 0xbb, 0xbb, 0x4b, 0x4b, 0xcb, 0xcb, 0x0b, 0x0b,
+ 0x8b, 0x8b, 0x6b, 0x6b, 0xeb, 0xeb, 0x2b, 0x2b,
+ 0xab, 0x54, 0xd4, 0x14, 0x94, 0x74, 0xf4, 0x34,
+ 0xb4, 0x44, 0xc4, 0x04, 0x84, 0x64, 0xe4, 0x24,
+ 0xa4, 0x5c, 0xdc, 0x1c, 0x9c, 0x7c, 0xfc, 0x3c,
+ 0xbc, 0x4c, 0xcc, 0x0c, 0x8c, 0x6c, 0xec, 0x2c,
+ 0xac, 0x50, 0xd0, 0x10, 0x90, 0x70, 0xf0, 0x30,
+ 0xb0, 0x40, 0xc0, 0x00, 0x80, 0x60, 0xe0, 0x20,
+ 0x58, 0xd8, 0x18, 0x98, 0x78, 0xf8, 0x38, 0xb8,
+ 0x48, 0xc8, 0x08, 0x88, 0x68, 0xe8, 0x28, 0xa8,
+ 0xd6, 0x16, 0x96, 0x76, 0xf6, 0x36, 0xb6, 0x46,
+ 0xc6, 0x06, 0x86, 0x66, 0xe6, 0x26, 0xa6, 0xde,
+ 0x9e, 0x7e, 0xfe, 0x3e, 0xbe, 0x4e, 0xce, 0x0e,
+ 0x8e, 0x6e, 0xee, 0x2e, 0x52, 0x12, 0x72, 0x32,
+ 0xb2, 0x42, 0xc2, 0x02, 0x82, 0x62, 0xe2, 0x22,
+ 0xa2, 0x5a, 0xda, 0x1a, 0x9a, 0x7a, 0xfa, 0x3a,
+ 0xba, 0xba, 0x4a, 0x4a, 0xca, 0xca, 0x0a, 0x0a,
+ 0x8a, 0x8a, 0x6a, 0x6a, 0xea, 0xea, 0x2a, 0x2a
+};
+
+/* alaw -> 4bit compression */
+static u8 alaw_to_4bit[256] = {
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0d, 0x02,
+ 0x0e, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x01, 0x0a, 0x05,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04,
+ 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03,
+ 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04,
+};
+
+/* 4bit -> alaw decompression */
+static u8 _4bit_to_alaw[16] = {
+ 0x5d, 0x51, 0xd9, 0xd7, 0x5f, 0x53, 0xa3, 0x4b,
+ 0x2a, 0x3a, 0x22, 0x2e, 0x26, 0x56, 0x20, 0x2c,
+};
+
+/* ulaw -> 4bit compression */
+static u8 ulaw_to_4bit[256] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05,
+ 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
+ 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
+ 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
+ 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x08,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0x0f, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e,
+ 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e,
+ 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
+ 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0b, 0x0b,
+ 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+ 0x0b, 0x0b, 0x0b, 0x0b, 0x0a, 0x0a, 0x0a, 0x0a,
+ 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
+ 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09,
+ 0x09, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+};
+
+/* 4bit -> ulaw decompression */
+static u8 _4bit_to_ulaw[16] = {
+ 0x11, 0x21, 0x31, 0x40, 0x4e, 0x5c, 0x68, 0x71,
+ 0xfe, 0xef, 0xe7, 0xdb, 0xcd, 0xbf, 0xaf, 0x9f,
+};
+
+
+/*
+ * Compresses data to the result buffer
+ * The result size must be at least half of the input buffer.
+ * The number of samples also must be even!
+ */
+int
+l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state)
+{
+ int ii, i = 0, o = 0;
+
+ if (!len)
+ return 0;
+
+ /* send saved byte and first input byte */
+ if (*state) {
+ *result++ = table_com[(((*state)<<8)&0xff00) | (*data++)];
+ len--;
+ o++;
+ }
+
+ ii = len >> 1;
+
+ while (i < ii) {
+ *result++ = table_com[(data[0]<<8) | (data[1])];
+ data += 2;
+ i++;
+ o++;
+ }
+
+ /* if len has an odd number, we save byte for next call */
+ if (len & 1)
+ *state = 0x100 + *data;
+ else
+ *state = 0;
+
+ return o;
+}
+
+/* Decompress data to the result buffer
+ * The result size must be the number of sample in packet. (2 * input data)
+ * The number of samples in the result are even!
+ */
+int
+l1oip_4bit_to_law(u8 *data, int len, u8 *result)
+{
+ int i = 0;
+ u16 r;
+
+ while (i < len) {
+ r = table_dec[*data++];
+ *result++ = r>>8;
+ *result++ = r;
+ i++;
+ }
+
+ return len << 1;
+}
+
+
+/*
+ * law conversion
+ */
+int
+l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result)
+{
+ int i = 0;
+
+ while (i < len) {
+ *result++ = alaw_to_ulaw[*data++];
+ i++;
+ }
+
+ return len;
+}
+
+int
+l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result)
+{
+ int i = 0;
+
+ while (i < len) {
+ *result++ = ulaw_to_alaw[*data++];
+ i++;
+ }
+
+ return len;
+}
+
+
+/*
+ * generate/free compression and decompression table
+ */
+void
+l1oip_4bit_free(void)
+{
+ if (table_dec)
+ vfree(table_dec);
+ if (table_com)
+ vfree(table_com);
+ table_com = NULL;
+ table_dec = NULL;
+}
+
+int
+l1oip_4bit_alloc(int ulaw)
+{
+ int i1, i2, c, sample;
+
+ /* in case, it is called again */
+ if (table_dec)
+ return 0;
+
+ /* alloc conversion tables */
+ table_com = vmalloc(65536);
+ table_dec = vmalloc(512);
+ if (!table_com | !table_dec) {
+ l1oip_4bit_free();
+ return -ENOMEM;
+ }
+ memset(table_com, 0, 65536);
+ memset(table_dec, 0, 512);
+ /* generate compression table */
+ i1 = 0;
+ while (i1 < 256) {
+ if (ulaw)
+ c = ulaw_to_4bit[i1];
+ else
+ c = alaw_to_4bit[i1];
+ i2 = 0;
+ while (i2 < 256) {
+ table_com[(i1<<8) | i2] |= (c<<4);
+ table_com[(i2<<8) | i1] |= c;
+ i2++;
+ }
+ i1++;
+ }
+
+ /* generate decompression table */
+ i1 = 0;
+ while (i1 < 16) {
+ if (ulaw)
+ sample = _4bit_to_ulaw[i1];
+ else
+ sample = _4bit_to_alaw[i1];
+ i2 = 0;
+ while (i2 < 16) {
+ table_dec[(i1<<4) | i2] |= (sample<<8);
+ table_dec[(i2<<4) | i1] |= sample;
+ i2++;
+ }
+ i1++;
+ }
+
+ return 0;
+}
+
+
--- /dev/null
+/*
+
+ * l1oip.c low level driver for tunneling layer 1 over IP
+ *
+ * NOTE: It is not compatible with TDMoIP nor "ISDN over IP".
+ *
+ * Author Andreas Eversberg (jolly@eversberg.eu)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* module parameters:
+ * type:
+ Value 1 = BRI
+ Value 2 = PRI
+ Value 3 = BRI (multi channel frame, not supported yet)
+ Value 4 = PRI (multi channel frame, not supported yet)
+ A multi channel frame reduces overhead to a single frame for all
+ b-channels, but increases delay.
+ (NOTE: Multi channel frames are not implemented yet.)
+
+ * codec:
+ Value 0 = transparent (default)
+ Value 1 = transfer ALAW
+ Value 2 = transfer ULAW
+ Value 3 = transfer generic 4 bit compression.
+
+ * ulaw:
+ 0 = we use a-Law (default)
+ 1 = we use u-Law
+
+ * limit:
+ limitation of B-channels to control bandwidth (1...126)
+ BRI: 1 or 2
+ PRI: 1-30, 31-126 (126, because dchannel ist not counted here)
+ Also limited ressources are used for stack, resulting in less channels.
+ It is possible to have more channels than 30 in PRI mode, this must
+ be supported by the application.
+
+ * ip:
+ byte representation of remote ip address (127.0.0.1 -> 127,0,0,1)
+ If not given or four 0, no remote address is set.
+ For multiple interfaces, concat ip addresses. (127,0,0,1,127,0,0,1)
+
+ * port:
+ port number (local interface)
+ If not given or 0, port 931 is used for fist instance, 932 for next...
+ For multiple interfaces, different ports must be given.
+
+ * remoteport:
+ port number (remote interface)
+ If not given or 0, remote port equals local port
+ For multiple interfaces on equal sites, different ports must be given.
+
+ * ondemand:
+ 0 = fixed (always transmit packets, even when remote side timed out)
+ 1 = on demand (only transmit packets, when remote side is detected)
+ the default is 0
+ NOTE: ID must also be set for on demand.
+
+ * id:
+ optional value to identify frames. This value must be equal on both
+ peers and should be random. If omitted or 0, no ID is transmitted.
+
+ * debug:
+ NOTE: only one debug value must be given for all cards
+ enable debugging (see l1oip.h for debug options)
+
+
+Special mISDN controls:
+
+ op = MISDN_CTRL_SETPEER*
+ p1 = bytes 0-3 : remote IP address in network order (left element first)
+ p2 = bytes 1-2 : remote port in network order (high byte first)
+ optional:
+ p2 = bytes 3-4 : local port in network order (high byte first)
+
+ op = MISDN_CTRL_UNSETPEER*
+
+ * Use l1oipctrl for comfortable setting or removing ip address.
+ (Layer 1 Over IP CTRL)
+
+
+L1oIP-Protocol
+--------------
+
+Frame Header:
+
+ 7 6 5 4 3 2 1 0
++---------------+
+|Ver|T|I|Coding |
++---------------+
+| ID byte 3 * |
++---------------+
+| ID byte 2 * |
++---------------+
+| ID byte 1 * |
++---------------+
+| ID byte 0 * |
++---------------+
+|M| Channel |
++---------------+
+| Length * |
++---------------+
+| Time Base MSB |
++---------------+
+| Time Base LSB |
++---------------+
+| Data.... |
+
+...
+
+| |
++---------------+
+|M| Channel |
++---------------+
+| Length * |
++---------------+
+| Time Base MSB |
++---------------+
+| Time Base LSB |
++---------------+
+| Data.... |
+
+...
+
+
+* Only included in some cases.
+
+- Ver = Version
+If version is missmatch, the frame must be ignored.
+
+- T = Type of interface
+Must be 0 for S0 or 1 for E1.
+
+- I = Id present
+If bit is set, four ID bytes are included in frame.
+
+- ID = Connection ID
+Additional ID to prevent Denial of Service attacs. Also it prevents hijacking
+connections with dynamic IP. The ID should be random and must not be 0.
+
+- Coding = Type of codec
+Must be 0 for no transcoding. Also for D-channel and other HDLC frames.
+ 1 and 2 are reserved for explicitly use of a-LAW or u-LAW codec.
+ 3 is used for generic table compressor.
+
+- M = More channels to come. If this flag is 1, the following byte contains
+the length of the channel data. After the data block, the next channel will
+be defined. The flag for the last channel block (or if only one channel is
+transmitted), must be 0 and no length is given.
+
+- Channel = Channel number
+0 reserved
+1-3 channel data for S0 (3 is D-channel)
+1-31 channel data for E1 (16 is D-channel)
+32-127 channel data for extended E1 (16 is D-channel)
+
+- The length is used if the M-flag is 1. It is used to find the next channel
+inside frame.
+NOTE: A value of 0 equals 256 bytes of data.
+ -> For larger data blocks, a single frame must be used.
+ -> For larger streams, a single frame or multiple blocks with same channel ID
+ must be used.
+
+- Time Base = Timestamp of first sample in frame
+The "Time Base" is used to rearange packets and to detect packet loss.
+The 16 bits are sent in network order (MSB first) and count 1/8000 th of a
+second. This causes a wrap arround each 8,192 seconds. There is no requirement
+for the initial "Time Base", but 0 should be used for the first packet.
+In case of HDLC data, this timestamp counts the packet or byte number.
+
+
+Two Timers:
+
+After initialisation, a timer of 15 seconds is started. Whenever a packet is
+transmitted, the timer is reset to 15 seconds again. If the timer expires, an
+empty packet is transmitted. This keep the connection alive.
+
+When a valid packet is received, a timer 65 seconds is started. The interface
+become ACTIVE. If the timer expires, the interface becomes INACTIVE.
+
+
+Dynamic IP handling:
+
+To allow dynamic IP, the ID must be non 0. In this case, any packet with the
+correct port number and ID will be accepted. If the remote side changes its IP
+the new IP is used for all transmitted packets until it changes again.
+
+
+On Demand:
+
+If the ondemand parameter is given, the remote IP is set to 0 on timeout.
+This will stop keepalive traffic to remote. If the remote is online again,
+traffic will continue to the remote address. This is usefull for road warriors.
+This feature only works with ID set, otherwhise it is highly unsecure.
+
+
+Socket and Thread
+-----------------
+
+The complete socket opening and closing is done by a thread.
+When the thread opened a socket, the hc->socket descriptor is set. Whenever a
+packet shall be sent to the socket, the hc->socket must be checked wheter not
+NULL. To prevent change in socket descriptor, the hc->socket_lock must be used.
+To change the socket, a recall of l1oip_socket_open() will safely kill the
+socket process and create a new one.
+
+*/
+
+#define L1OIP_VERSION 0 /* 0...3 */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mISDNif.h>
+#include <linux/mISDNhw.h>
+#include <linux/mISDNdsp.h>
+#include <linux/init.h>
+#include <linux/in.h>
+#include <linux/inet.h>
+#include <linux/workqueue.h>
+#include <linux/kthread.h>
+#include <net/sock.h>
+#include "core.h"
+#include "l1oip.h"
+
+static const char *l1oip_revision = "2.00";
+
+static int l1oip_cnt;
+static spinlock_t l1oip_lock;
+static struct list_head l1oip_ilist;
+
+#define MAX_CARDS 16
+static u_int type[MAX_CARDS];
+static u_int codec[MAX_CARDS];
+static u_int ip[MAX_CARDS*4];
+static u_int port[MAX_CARDS];
+static u_int remoteport[MAX_CARDS];
+static u_int ondemand[MAX_CARDS];
+static u_int limit[MAX_CARDS];
+static u_int id[MAX_CARDS];
+static int debug;
+static int ulaw;
+
+MODULE_AUTHOR("Andreas Eversberg");
+MODULE_LICENSE("GPL");
+module_param_array(type, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(codec, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(ip, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(port, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(remoteport, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(ondemand, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(limit, uint, NULL, S_IRUGO | S_IWUSR);
+module_param_array(id, uint, NULL, S_IRUGO | S_IWUSR);
+module_param(ulaw, uint, S_IRUGO | S_IWUSR);
+module_param(debug, uint, S_IRUGO | S_IWUSR);
+
+/*
+ * send a frame via socket, if open and restart timer
+ */
+static int
+l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
+ u16 timebase, u8 *buf, int len)
+{
+ u8 *p;
+ int multi = 0;
+ u8 frame[len+32];
+ struct socket *socket = NULL;
+ mm_segment_t oldfs;
+
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: sending data to socket (len = %d)\n",
+ __func__, len);
+
+ p = frame;
+
+ /* restart timer */
+ if ((int)(hc->keep_tl.expires-jiffies) < 5*HZ) {
+ del_timer(&hc->keep_tl);
+ hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE*HZ;
+ add_timer(&hc->keep_tl);
+ } else
+ hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE*HZ;
+
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: resetting timer\n", __func__);
+
+ /* drop if we have no remote ip or port */
+ if (!hc->sin_remote.sin_addr.s_addr || !hc->sin_remote.sin_port) {
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: dropping frame, because remote "
+ "IP is not set.\n", __func__);
+ return len;
+ }
+
+ /* assemble frame */
+ *p++ = (L1OIP_VERSION<<6) /* version and coding */
+ | (hc->pri?0x20:0x00) /* type */
+ | (hc->id?0x10:0x00) /* id */
+ | localcodec;
+ if (hc->id) {
+ *p++ = hc->id>>24; /* id */
+ *p++ = hc->id>>16;
+ *p++ = hc->id>>8;
+ *p++ = hc->id;
+ }
+ *p++ = (multi == 1)?0x80:0x00 + channel; /* m-flag, channel */
+ if (multi == 1)
+ *p++ = len; /* length */
+ *p++ = timebase>>8; /* time base */
+ *p++ = timebase;
+
+ if (buf && len) { /* add data to frame */
+ if (localcodec == 1 && ulaw)
+ l1oip_ulaw_to_alaw(buf, len, p);
+ else if (localcodec == 2 && !ulaw)
+ l1oip_alaw_to_ulaw(buf, len, p);
+ else if (localcodec == 3)
+ len = l1oip_law_to_4bit(buf, len, p,
+ &hc->chan[channel].codecstate);
+ else
+ memcpy(p, buf, len);
+ }
+ len += p - frame;
+
+ /* check for socket in safe condition */
+ spin_lock(&hc->socket_lock);
+ if (!hc->socket) {
+ spin_unlock(&hc->socket_lock);
+ return 0;
+ }
+ /* seize socket */
+ socket = hc->socket;
+ hc->socket = NULL;
+ spin_unlock(&hc->socket_lock);
+ /* send packet */
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: sending packet to socket (len "
+ "= %d)\n", __func__, len);
+ hc->sendiov.iov_base = frame;
+ hc->sendiov.iov_len = len;
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ len = sock_sendmsg(socket, &hc->sendmsg, len);
+ set_fs(oldfs);
+ /* give socket back */
+ hc->socket = socket; /* no locking required */
+
+ return len;
+}
+
+
+/*
+ * receive channel data from socket
+ */
+static void
+l1oip_socket_recv(struct l1oip *hc, u8 remotecodec, u8 channel, u16 timebase,
+ u8 *buf, int len)
+{
+ struct sk_buff *nskb;
+ struct bchannel *bch;
+ struct dchannel *dch;
+ u8 *p;
+ u32 rx_counter;
+
+ if (len == 0) {
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: received empty keepalive data, "
+ "ignoring\n", __func__);
+ return;
+ }
+
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: received data, sending to mISDN (%d)\n",
+ __func__, len);
+
+ if (channel < 1 || channel > 127) {
+ printk(KERN_WARNING "%s: packet error - channel %d out of "
+ "range\n", __func__, channel);
+ return;
+ }
+ dch = hc->chan[channel].dch;
+ bch = hc->chan[channel].bch;
+ if (!dch && !bch) {
+ printk(KERN_WARNING "%s: packet error - channel %d not in "
+ "stack\n", __func__, channel);
+ return;
+ }
+
+ /* prepare message */
+ nskb = mI_alloc_skb((remotecodec == 3)?(len<<1):len, GFP_ATOMIC);
+ if (!nskb) {
+ printk(KERN_ERR "%s: No mem for skb.\n", __func__);
+ return;
+ }
+ p = skb_put(nskb, (remotecodec == 3)?(len<<1):len);
+
+ if (remotecodec == 1 && ulaw)
+ l1oip_alaw_to_ulaw(buf, len, p);
+ else if (remotecodec == 2 && !ulaw)
+ l1oip_ulaw_to_alaw(buf, len, p);
+ else if (remotecodec == 3)
+ len = l1oip_4bit_to_law(buf, len, p);
+ else
+ memcpy(p, buf, len);
+
+ /* send message up */
+ if (dch && len >= 2) {
+ dch->rx_skb = nskb;
+ recv_Dchannel(dch);
+ }
+ if (bch) {
+ /* expand 16 bit sequence number to 32 bit sequence number */
+ rx_counter = hc->chan[channel].rx_counter;
+ if (((s16)(timebase - rx_counter)) >= 0) {
+ /* time has changed forward */
+ if (timebase >= (rx_counter & 0xffff))
+ rx_counter =
+ (rx_counter & 0xffff0000) | timebase;
+ else
+ rx_counter = ((rx_counter & 0xffff0000)+0x10000)
+ | timebase;
+ } else {
+ /* time has changed backwards */
+ if (timebase < (rx_counter & 0xffff))
+ rx_counter =
+ (rx_counter & 0xffff0000) | timebase;
+ else
+ rx_counter = ((rx_counter & 0xffff0000)-0x10000)
+ | timebase;
+ }
+ hc->chan[channel].rx_counter = rx_counter;
+
+#ifdef REORDER_DEBUG
+ if (hc->chan[channel].disorder_flag) {
+ struct sk_buff *skb;
+ int cnt;
+ skb = hc->chan[channel].disorder_skb;
+ hc->chan[channel].disorder_skb = nskb;
+ nskb = skb;
+ cnt = hc->chan[channel].disorder_cnt;
+ hc->chan[channel].disorder_cnt = rx_counter;
+ rx_counter = cnt;
+ }
+ hc->chan[channel].disorder_flag ^= 1;
+ if (nskb)
+#endif
+ queue_ch_frame(&bch->ch, PH_DATA_IND, rx_counter, nskb);
+ }
+}
+
+
+/*
+ * parse frame and extract channel data
+ */
+static void
+l1oip_socket_parse(struct l1oip *hc, struct sockaddr_in *sin, u8 *buf, int len)
+{
+ u32 id;
+ u8 channel;
+ u8 remotecodec;
+ u16 timebase;
+ int m, mlen;
+ int len_start = len; /* initial frame length */
+ struct dchannel *dch = hc->chan[hc->d_idx].dch;
+
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: received frame, parsing... (%d)\n",
+ __func__, len);
+
+ /* check lenght */
+ if (len < 1+1+2) {
+ printk(KERN_WARNING "%s: packet error - length %d below "
+ "4 bytes\n", __func__, len);
+ return;
+ }
+
+ /* check version */
+ if (((*buf)>>6) != L1OIP_VERSION) {
+ printk(KERN_WARNING "%s: packet error - unknown version %d\n",
+ __func__, buf[0]>>6);
+ return;
+ }
+
+ /* check type */
+ if (((*buf)&0x20) && !hc->pri) {
+ printk(KERN_WARNING "%s: packet error - received E1 packet "
+ "on S0 interface\n", __func__);
+ return;
+ }
+ if (!((*buf)&0x20) && hc->pri) {
+ printk(KERN_WARNING "%s: packet error - received S0 packet "
+ "on E1 interface\n", __func__);
+ return;
+ }
+
+ /* get id flag */
+ id = (*buf>>4)&1;
+
+ /* check coding */
+ remotecodec = (*buf) & 0x0f;
+ if (remotecodec > 3) {
+ printk(KERN_WARNING "%s: packet error - remotecodec %d "
+ "unsupported\n", __func__, remotecodec);
+ return;
+ }
+ buf++;
+ len--;
+
+ /* check id */
+ if (id) {
+ if (!hc->id) {
+ printk(KERN_WARNING "%s: packet error - packet has id "
+ "0x%x, but we have not\n", __func__, id);
+ return;
+ }
+ if (len < 4) {
+ printk(KERN_WARNING "%s: packet error - packet too "
+ "short for ID value\n", __func__);
+ return;
+ }
+ id = (*buf++) << 24;
+ id += (*buf++) << 16;
+ id += (*buf++) << 8;
+ id += (*buf++);
+ len -= 4;
+
+ if (id != hc->id) {
+ printk(KERN_WARNING "%s: packet error - ID mismatch, "
+ "got 0x%x, we 0x%x\n",
+ __func__, id, hc->id);
+ return;
+ }
+ } else {
+ if (hc->id) {
+ printk(KERN_WARNING "%s: packet error - packet has no "
+ "ID, but we have\n", __func__);
+ return;
+ }
+ }
+
+multiframe:
+ if (len < 1) {
+ printk(KERN_WARNING "%s: packet error - packet too short, "
+ "channel expected at position %d.\n",
+ __func__, len-len_start+1);
+ return;
+ }
+
+ /* get channel and multiframe flag */
+ channel = *buf&0x7f;
+ m = *buf >> 7;
+ buf++;
+ len--;
+
+ /* check length on multiframe */
+ if (m) {
+ if (len < 1) {
+ printk(KERN_WARNING "%s: packet error - packet too "
+ "short, length expected at position %d.\n",
+ __func__, len_start-len-1);
+ return;
+ }
+
+ mlen = *buf++;
+ len--;
+ if (mlen == 0)
+ mlen = 256;
+ if (len < mlen+3) {
+ printk(KERN_WARNING "%s: packet error - length %d at "
+ "position %d exceeds total length %d.\n",
+ __func__, mlen, len_start-len-1, len_start);
+ return;
+ }
+ if (len == mlen+3) {
+ printk(KERN_WARNING "%s: packet error - length %d at "
+ "position %d will not allow additional "
+ "packet.\n",
+ __func__, mlen, len_start-len+1);
+ return;
+ }
+ } else
+ mlen = len-2; /* single frame, substract timebase */
+
+ if (len < 2) {
+ printk(KERN_WARNING "%s: packet error - packet too short, time "
+ "base expected at position %d.\n",
+ __func__, len-len_start+1);
+ return;
+ }
+
+ /* get time base */
+ timebase = (*buf++) << 8;
+ timebase |= (*buf++);
+ len -= 2;
+
+ /* if inactive, we send up a PH_ACTIVATE and activate */
+ if (!test_bit(FLG_ACTIVE, &dch->Flags)) {
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: interface become active due to "
+ "received packet\n", __func__);
+ test_and_set_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY, 0,
+ NULL, GFP_ATOMIC);
+ }
+
+ /* distribute packet */
+ l1oip_socket_recv(hc, remotecodec, channel, timebase, buf, mlen);
+ buf += mlen;
+ len -= mlen;
+
+ /* multiframe */
+ if (m)
+ goto multiframe;
+
+ /* restart timer */
+ if ((int)(hc->timeout_tl.expires-jiffies) < 5*HZ || !hc->timeout_on) {
+ hc->timeout_on = 1;
+ del_timer(&hc->timeout_tl);
+ hc->timeout_tl.expires = jiffies + L1OIP_TIMEOUT*HZ;
+ add_timer(&hc->timeout_tl);
+ } else /* only adjust timer */
+ hc->timeout_tl.expires = jiffies + L1OIP_TIMEOUT*HZ;
+
+ /* if ip or source port changes */
+ if ((hc->sin_remote.sin_addr.s_addr != sin->sin_addr.s_addr)
+ || (hc->sin_remote.sin_port != sin->sin_port)) {
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: remote address changes from "
+ "0x%08x to 0x%08x (port %d to %d)\n", __func__,
+ ntohl(hc->sin_remote.sin_addr.s_addr),
+ ntohl(sin->sin_addr.s_addr),
+ ntohs(hc->sin_remote.sin_port),
+ ntohs(sin->sin_port));
+ hc->sin_remote.sin_addr.s_addr = sin->sin_addr.s_addr;
+ hc->sin_remote.sin_port = sin->sin_port;
+ }
+}
+
+
+/*
+ * socket stuff
+ */
+static int
+l1oip_socket_thread(void *data)
+{
+ struct l1oip *hc = (struct l1oip *)data;
+ int ret = 0;
+ struct msghdr msg;
+ struct iovec iov;
+ mm_segment_t oldfs;
+ struct sockaddr_in sin_rx;
+ unsigned char recvbuf[1500];
+ int recvlen;
+ struct socket *socket = NULL;
+ DECLARE_COMPLETION(wait);
+
+ /* make daemon */
+ allow_signal(SIGTERM);
+
+ /* create socket */
+ if (sock_create(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &socket)) {
+ printk(KERN_ERR "%s: Failed to create socket.\n", __func__);
+ return -EIO;
+ }
+
+ /* set incoming address */
+ hc->sin_local.sin_family = AF_INET;
+ hc->sin_local.sin_addr.s_addr = INADDR_ANY;
+ hc->sin_local.sin_port = htons((unsigned short)hc->localport);
+
+ /* set outgoing address */
+ hc->sin_remote.sin_family = AF_INET;
+ hc->sin_remote.sin_addr.s_addr = htonl(hc->remoteip);
+ hc->sin_remote.sin_port = htons((unsigned short)hc->remoteport);
+
+ /* bind to incomming port */
+ if (socket->ops->bind(socket, (struct sockaddr *)&hc->sin_local,
+ sizeof(hc->sin_local))) {
+ printk(KERN_ERR "%s: Failed to bind socket to port %d.\n",
+ __func__, hc->localport);
+ ret = -EINVAL;
+ goto fail;
+ }
+
+ /* check sk */
+ if (socket->sk == NULL) {
+ printk(KERN_ERR "%s: socket->sk == NULL\n", __func__);
+ ret = -EIO;
+ goto fail;
+ }
+
+ /* build receive message */
+ msg.msg_name = &sin_rx;
+ msg.msg_namelen = sizeof(sin_rx);
+ msg.msg_control = NULL;
+ msg.msg_controllen = 0;
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ /* build send message */
+ hc->sendmsg.msg_name = &hc->sin_remote;
+ hc->sendmsg.msg_namelen = sizeof(hc->sin_remote);
+ hc->sendmsg.msg_control = NULL;
+ hc->sendmsg.msg_controllen = 0;
+ hc->sendmsg.msg_iov = &hc->sendiov;
+ hc->sendmsg.msg_iovlen = 1;
+
+ /* give away socket */
+ spin_lock(&hc->socket_lock);
+ hc->socket = socket;
+ spin_unlock(&hc->socket_lock);
+
+ /* read loop */
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: socket created and open\n",
+ __func__);
+ while (!signal_pending(current)) {
+ iov.iov_base = recvbuf;
+ iov.iov_len = sizeof(recvbuf);
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ recvlen = sock_recvmsg(socket, &msg, sizeof(recvbuf), 0);
+ set_fs(oldfs);
+ if (recvlen > 0) {
+ l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen);
+ } else {
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_WARNING "%s: broken pipe on socket\n",
+ __func__);
+ }
+ }
+
+ /* get socket back, check first if in use, maybe by send function */
+ spin_lock(&hc->socket_lock);
+ /* if hc->socket is NULL, it is in use until it is given back */
+ while (!hc->socket) {
+ spin_unlock(&hc->socket_lock);
+ schedule_timeout(HZ/10);
+ spin_lock(&hc->socket_lock);
+ }
+ hc->socket = NULL;
+ spin_unlock(&hc->socket_lock);
+
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: socket thread terminating\n",
+ __func__);
+
+fail:
+ /* close socket */
+ if (socket)
+ sock_release(socket);
+
+ /* if we got killed, signal completion */
+ complete(&hc->socket_complete);
+ hc->socket_thread = NULL; /* show termination of thread */
+
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: socket thread terminated\n",
+ __func__);
+ return ret;
+}
+
+static void
+l1oip_socket_close(struct l1oip *hc)
+{
+ /* kill thread */
+ if (hc->socket_thread) {
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: socket thread exists, "
+ "killing...\n", __func__);
+ send_sig(SIGTERM, hc->socket_thread, 0);
+ wait_for_completion(&hc->socket_complete);
+ }
+}
+
+static int
+l1oip_socket_open(struct l1oip *hc)
+{
+ /* in case of reopen, we need to close first */
+ l1oip_socket_close(hc);
+
+ init_completion(&hc->socket_complete);
+
+ /* create receive process */
+ hc->socket_thread = kthread_run(l1oip_socket_thread, hc, "l1oip_%s",
+ hc->name);
+ if (IS_ERR(hc->socket_thread)) {
+ int err = PTR_ERR(hc->socket_thread);
+ printk(KERN_ERR "%s: Failed (%d) to create socket process.\n",
+ __func__, err);
+ hc->socket_thread = NULL;
+ sock_release(hc->socket);
+ return err;
+ }
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: socket thread created\n", __func__);
+
+ return 0;
+}
+
+
+static void
+l1oip_send_bh(struct work_struct *work)
+{
+ struct l1oip *hc = container_of(work, struct l1oip, workq);
+
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: keepalive timer expired, sending empty "
+ "frame on dchannel\n", __func__);
+
+ /* send an empty l1oip frame at D-channel */
+ l1oip_socket_send(hc, 0, hc->d_idx, 0, 0, NULL, 0);
+}
+
+
+/*
+ * timer stuff
+ */
+static void
+l1oip_keepalive(void *data)
+{
+ struct l1oip *hc = (struct l1oip *)data;
+
+ schedule_work(&hc->workq);
+}
+
+static void
+l1oip_timeout(void *data)
+{
+ struct l1oip *hc = (struct l1oip *)data;
+ struct dchannel *dch = hc->chan[hc->d_idx].dch;
+
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: timeout timer expired, turn layer one "
+ "down.\n", __func__);
+
+ hc->timeout_on = 0; /* state that timer must be initialized next time */
+
+ /* if timeout, we send up a PH_DEACTIVATE and deactivate */
+ if (test_bit(FLG_ACTIVE, &dch->Flags)) {
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: interface become deactivated "
+ "due to timeout\n", __func__);
+ test_and_clear_bit(FLG_ACTIVE, &dch->Flags);
+ _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0,
+ NULL, GFP_ATOMIC);
+ }
+
+ /* if we have ondemand set, we remove ip address */
+ if (hc->ondemand) {
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: on demand causes ip address to "
+ "be removed\n", __func__);
+ hc->sin_remote.sin_addr.s_addr = 0;
+ }
+}
+
+
+/*
+ * message handling
+ */
+static int
+handle_dmsg(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct l1oip *hc = dch->hw;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int ret = -EINVAL;
+ int l, ll;
+ unsigned char *p;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ if (skb->len < 1) {
+ printk(KERN_WARNING "%s: skb too small\n",
+ __func__);
+ break;
+ }
+ if (skb->len > MAX_DFRAME_LEN_L1 || skb->len > L1OIP_MAX_LEN) {
+ printk(KERN_WARNING "%s: skb too large\n",
+ __func__);
+ break;
+ }
+ /* send frame */
+ p = skb->data;
+ l = skb->len;
+ while (l) {
+ ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME;
+ l1oip_socket_send(hc, 0, dch->slot, 0,
+ hc->chan[dch->slot].tx_counter++, p, ll);
+ p += ll;
+ l -= ll;
+ }
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb);
+ return 0;
+ case PH_ACTIVATE_REQ:
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: PH_ACTIVATE channel %d (1..%d)\n"
+ , __func__, dch->slot, hc->b_num+1);
+ skb_trim(skb, 0);
+ if (test_bit(FLG_ACTIVE, &dch->Flags))
+ queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb);
+ else
+ queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb);
+ return 0;
+ case PH_DEACTIVATE_REQ:
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: PH_DEACTIVATE channel %d "
+ "(1..%d)\n", __func__, dch->slot,
+ hc->b_num+1);
+ skb_trim(skb, 0);
+ if (test_bit(FLG_ACTIVE, &dch->Flags))
+ queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb);
+ else
+ queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb);
+ return 0;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+static int
+channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+ struct l1oip *hc = dch->hw;
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = MISDN_CTRL_SETPEER | MISDN_CTRL_UNSETPEER;
+ break;
+ case MISDN_CTRL_SETPEER:
+ hc->remoteip = (u32)cq->p1;
+ hc->remoteport = cq->p2 & 0xffff;
+ hc->localport = cq->p2 >> 16;
+ if (!hc->remoteport)
+ hc->remoteport = hc->localport;
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: got new ip address from user "
+ "space.\n", __func__);
+ l1oip_socket_open(hc);
+ break;
+ case MISDN_CTRL_UNSETPEER:
+ if (debug & DEBUG_L1OIP_SOCKET)
+ printk(KERN_DEBUG "%s: removing ip address.\n",
+ __func__);
+ hc->remoteip = 0;
+ l1oip_socket_open(hc);
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n",
+ __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int
+open_dchannel(struct l1oip *hc, struct dchannel *dch, struct channel_req *rq)
+{
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__,
+ dch->dev.id, __builtin_return_address(0));
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ if ((dch->dev.D.protocol != ISDN_P_NONE) &&
+ (dch->dev.D.protocol != rq->protocol)) {
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_WARNING "%s: change protocol %x to %x\n",
+ __func__, dch->dev.D.protocol, rq->protocol);
+ }
+ if (dch->dev.D.protocol != rq->protocol)
+ dch->dev.D.protocol = rq->protocol;
+
+ if (test_bit(FLG_ACTIVE, &dch->Flags)) {
+ _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY,
+ 0, NULL, GFP_KERNEL);
+ }
+ rq->ch = &dch->dev.D;
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+static int
+open_bchannel(struct l1oip *hc, struct dchannel *dch, struct channel_req *rq)
+{
+ struct bchannel *bch;
+ int ch;
+
+ if (!test_bit(rq->adr.channel & 0x1f,
+ &dch->dev.channelmap[rq->adr.channel >> 5]))
+ return -EINVAL;
+ if (rq->protocol == ISDN_P_NONE)
+ return -EINVAL;
+ ch = rq->adr.channel; /* BRI: 1=B1 2=B2 PRI: 1..15,17.. */
+ bch = hc->chan[ch].bch;
+ if (!bch) {
+ printk(KERN_ERR "%s:internal error ch %d has no bch\n",
+ __func__, ch);
+ return -EINVAL;
+ }
+ if (test_and_set_bit(FLG_OPEN, &bch->Flags))
+ return -EBUSY; /* b-channel can be only open once */
+ bch->ch.protocol = rq->protocol;
+ rq->ch = &bch->ch;
+ if (!try_module_get(THIS_MODULE))
+ printk(KERN_WARNING "%s:cannot get module\n", __func__);
+ return 0;
+}
+
+static int
+l1oip_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D);
+ struct dchannel *dch = container_of(dev, struct dchannel, dev);
+ struct l1oip *hc = dch->hw;
+ struct channel_req *rq;
+ int err = 0;
+
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n",
+ __func__, cmd, arg);
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ rq = arg;
+ switch (rq->protocol) {
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_S0:
+ if (hc->pri) {
+ err = -EINVAL;
+ break;
+ }
+ err = open_dchannel(hc, dch, rq);
+ break;
+ case ISDN_P_TE_E1:
+ case ISDN_P_NT_E1:
+ if (!hc->pri) {
+ err = -EINVAL;
+ break;
+ }
+ err = open_dchannel(hc, dch, rq);
+ break;
+ default:
+ err = open_bchannel(hc, dch, rq);
+ }
+ break;
+ case CLOSE_CHANNEL:
+ if (debug & DEBUG_HW_OPEN)
+ printk(KERN_DEBUG "%s: dev(%d) close from %p\n",
+ __func__, dch->dev.id,
+ __builtin_return_address(0));
+ module_put(THIS_MODULE);
+ break;
+ case CONTROL_CHANNEL:
+ err = channel_dctrl(dch, arg);
+ break;
+ default:
+ if (dch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: unknown command %x\n",
+ __func__, cmd);
+ err = -EINVAL;
+ }
+ return err;
+}
+
+static int
+handle_bmsg(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ struct l1oip *hc = bch->hw;
+ int ret = -EINVAL;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int l, ll, i;
+ unsigned char *p;
+
+ switch (hh->prim) {
+ case PH_DATA_REQ:
+ if (skb->len <= 0) {
+ printk(KERN_WARNING "%s: skb too small\n",
+ __func__);
+ break;
+ }
+ if (skb->len > MAX_DFRAME_LEN_L1 || skb->len > L1OIP_MAX_LEN) {
+ printk(KERN_WARNING "%s: skb too large\n",
+ __func__);
+ break;
+ }
+ /* check for AIS / ulaw-silence */
+ p = skb->data;
+ l = skb->len;
+ for (i = 0; i < l; i++) {
+ if (*p++ != 0xff)
+ break;
+ }
+ if (i == l) {
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: got AIS, not sending, "
+ "but counting\n", __func__);
+ hc->chan[bch->slot].tx_counter += l;
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb);
+ return 0;
+ }
+ /* check for silence */
+ p = skb->data;
+ l = skb->len;
+ for (i = 0; i < l; i++) {
+ if (*p++ != 0x2a)
+ break;
+ }
+ if (i == l) {
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: got silence, not sending"
+ ", but counting\n", __func__);
+ hc->chan[bch->slot].tx_counter += l;
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb);
+ return 0;
+ }
+
+ /* send frame */
+ p = skb->data;
+ l = skb->len;
+ while (l) {
+ ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME;
+ l1oip_socket_send(hc, hc->codec, bch->slot, 0,
+ hc->chan[bch->slot].tx_counter, p, ll);
+ hc->chan[bch->slot].tx_counter += ll;
+ p += ll;
+ l -= ll;
+ }
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb);
+ return 0;
+ case PH_ACTIVATE_REQ:
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: PH_ACTIVATE channel %d (1..%d)\n"
+ , __func__, bch->slot, hc->b_num+1);
+ hc->chan[bch->slot].codecstate = 0;
+ test_and_set_bit(FLG_ACTIVE, &bch->Flags);
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb);
+ return 0;
+ case PH_DEACTIVATE_REQ:
+ if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET))
+ printk(KERN_DEBUG "%s: PH_DEACTIVATE channel %d "
+ "(1..%d)\n", __func__, bch->slot,
+ hc->b_num+1);
+ test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
+ skb_trim(skb, 0);
+ queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb);
+ return 0;
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+static int
+channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq)
+{
+ int ret = 0;
+ struct dsp_features *features =
+ (struct dsp_features *)(*((u_long *)&cq->p1));
+
+ switch (cq->op) {
+ case MISDN_CTRL_GETOP:
+ cq->op = MISDN_CTRL_HW_FEATURES_OP;
+ break;
+ case MISDN_CTRL_HW_FEATURES: /* fill features structure */
+ if (debug & DEBUG_L1OIP_MSG)
+ printk(KERN_DEBUG "%s: HW_FEATURE request\n",
+ __func__);
+ /* create confirm */
+ features->unclocked = 1;
+ features->unordered = 1;
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown Op %x\n",
+ __func__, cq->op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static int
+l1oip_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct bchannel *bch = container_of(ch, struct bchannel, ch);
+ int err = -EINVAL;
+
+ if (bch->debug & DEBUG_HW)
+ printk(KERN_DEBUG "%s: cmd:%x %p\n",
+ __func__, cmd, arg);
+ switch (cmd) {
+ case CLOSE_CHANNEL:
+ test_and_clear_bit(FLG_OPEN, &bch->Flags);
+ test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
+ ch->protocol = ISDN_P_NONE;
+ ch->peer = NULL;
+ module_put(THIS_MODULE);
+ err = 0;
+ break;
+ case CONTROL_CHANNEL:
+ err = channel_bctrl(bch, arg);
+ break;
+ default:
+ printk(KERN_WARNING "%s: unknown prim(%x)\n",
+ __func__, cmd);
+ }
+ return err;
+}
+
+
+/*
+ * cleanup module and stack
+ */
+static void
+release_card(struct l1oip *hc)
+{
+ int ch;
+
+ if (timer_pending(&hc->keep_tl))
+ del_timer(&hc->keep_tl);
+
+ if (timer_pending(&hc->timeout_tl))
+ del_timer(&hc->timeout_tl);
+
+ if (hc->socket_thread)
+ l1oip_socket_close(hc);
+
+ if (hc->registered && hc->chan[hc->d_idx].dch)
+ mISDN_unregister_device(&hc->chan[hc->d_idx].dch->dev);
+ for (ch = 0; ch < 128; ch++) {
+ if (hc->chan[ch].dch) {
+ mISDN_freedchannel(hc->chan[ch].dch);
+ kfree(hc->chan[ch].dch);
+ }
+ if (hc->chan[ch].bch) {
+ mISDN_freebchannel(hc->chan[ch].bch);
+ kfree(hc->chan[ch].bch);
+#ifdef REORDER_DEBUG
+ if (hc->chan[ch].disorder_skb)
+ dev_kfree_skb(hc->chan[ch].disorder_skb);
+#endif
+ }
+ }
+
+ spin_lock(&l1oip_lock);
+ list_del(&hc->list);
+ spin_unlock(&l1oip_lock);
+
+ kfree(hc);
+}
+
+static void
+l1oip_cleanup(void)
+{
+ struct l1oip *hc, *next;
+
+ list_for_each_entry_safe(hc, next, &l1oip_ilist, list)
+ release_card(hc);
+
+ l1oip_4bit_free();
+}
+
+
+/*
+ * module and stack init
+ */
+static int
+init_card(struct l1oip *hc, int pri, int bundle)
+{
+ struct dchannel *dch;
+ struct bchannel *bch;
+ int ret;
+ int i, ch;
+
+ spin_lock_init(&hc->socket_lock);
+ hc->idx = l1oip_cnt;
+ hc->pri = pri;
+ hc->d_idx = pri?16:3;
+ hc->b_num = pri?30:2;
+ hc->bundle = bundle;
+ if (hc->pri)
+ sprintf(hc->name, "l1oip-e1.%d", l1oip_cnt + 1);
+ else
+ sprintf(hc->name, "l1oip-s0.%d", l1oip_cnt + 1);
+
+ switch (codec[l1oip_cnt]) {
+ case 0: /* as is */
+ case 1: /* alaw */
+ case 2: /* ulaw */
+ case 3: /* 4bit */
+ break;
+ default:
+ printk(KERN_ERR "Codec(%d) not supported.\n",
+ codec[l1oip_cnt]);
+ return -EINVAL;
+ }
+ hc->codec = codec[l1oip_cnt];
+ if (debug & DEBUG_L1OIP_INIT)
+ printk(KERN_DEBUG "%s: using codec %d\n",
+ __func__, hc->codec);
+
+ if (id[l1oip_cnt] == 0) {
+ printk(KERN_WARNING "Warning: No 'id' value given or "
+ "0, this is highly unsecure. Please use 32 "
+ "bit randmom number 0x...\n");
+ }
+ hc->id = id[l1oip_cnt];
+ if (debug & DEBUG_L1OIP_INIT)
+ printk(KERN_DEBUG "%s: using id 0x%x\n", __func__, hc->id);
+
+ hc->ondemand = ondemand[l1oip_cnt];
+ if (hc->ondemand && !hc->id) {
+ printk(KERN_ERR "%s: ondemand option only allowed in "
+ "conjunction with non 0 ID\n", __func__);
+ return -EINVAL;
+ }
+
+ if (limit[l1oip_cnt])
+ hc->b_num = limit[l1oip_cnt];
+ if (!pri && hc->b_num > 2) {
+ printk(KERN_ERR "Maximum limit for BRI interface is 2 "
+ "channels.\n");
+ return -EINVAL;
+ }
+ if (pri && hc->b_num > 126) {
+ printk(KERN_ERR "Maximum limit for PRI interface is 126 "
+ "channels.\n");
+ return -EINVAL;
+ }
+ if (pri && hc->b_num > 30) {
+ printk(KERN_WARNING "Maximum limit for BRI interface is 30 "
+ "channels.\n");
+ printk(KERN_WARNING "Your selection of %d channels must be "
+ "supported by application.\n", hc->limit);
+ }
+
+ hc->remoteip = ip[l1oip_cnt<<2] << 24
+ | ip[(l1oip_cnt<<2)+1] << 16
+ | ip[(l1oip_cnt<<2)+2] << 8
+ | ip[(l1oip_cnt<<2)+3];
+ hc->localport = port[l1oip_cnt]?:(L1OIP_DEFAULTPORT+l1oip_cnt);
+ if (remoteport[l1oip_cnt])
+ hc->remoteport = remoteport[l1oip_cnt];
+ else
+ hc->remoteport = hc->localport;
+ if (debug & DEBUG_L1OIP_INIT)
+ printk(KERN_DEBUG "%s: using local port %d remote ip "
+ "%d.%d.%d.%d port %d ondemand %d\n", __func__,
+ hc->localport, hc->remoteip >> 24,
+ (hc->remoteip >> 16) & 0xff,
+ (hc->remoteip >> 8) & 0xff, hc->remoteip & 0xff,
+ hc->remoteport, hc->ondemand);
+
+ dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL);
+ if (!dch)
+ return -ENOMEM;
+ dch->debug = debug;
+ mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, NULL);
+ dch->hw = hc;
+ if (pri)
+ dch->dev.Dprotocols = (1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1);
+ else
+ dch->dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0);
+ dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) |
+ (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK));
+ dch->dev.D.send = handle_dmsg;
+ dch->dev.D.ctrl = l1oip_dctrl;
+ dch->dev.nrbchan = hc->b_num;
+ dch->slot = hc->d_idx;
+ hc->chan[hc->d_idx].dch = dch;
+ i = 1;
+ for (ch = 0; ch < dch->dev.nrbchan; ch++) {
+ if (ch == 15)
+ i++;
+ bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL);
+ if (!bch) {
+ printk(KERN_ERR "%s: no memory for bchannel\n",
+ __func__);
+ return -ENOMEM;
+ }
+ bch->nr = i + ch;
+ bch->slot = i + ch;
+ bch->debug = debug;
+ mISDN_initbchannel(bch, MAX_DATA_MEM);
+ bch->hw = hc;
+ bch->ch.send = handle_bmsg;
+ bch->ch.ctrl = l1oip_bctrl;
+ bch->ch.nr = i + ch;
+ list_add(&bch->ch.list, &dch->dev.bchannels);
+ hc->chan[i + ch].bch = bch;
+ test_and_set_bit(bch->nr & 0x1f,
+ &dch->dev.channelmap[bch->nr >> 5]);
+ }
+ ret = mISDN_register_device(&dch->dev, hc->name);
+ if (ret)
+ return ret;
+ hc->registered = 1;
+
+ if (debug & DEBUG_L1OIP_INIT)
+ printk(KERN_DEBUG "%s: Setting up network card(%d)\n",
+ __func__, l1oip_cnt + 1);
+ ret = l1oip_socket_open(hc);
+ if (ret)
+ return ret;
+
+ hc->keep_tl.function = (void *)l1oip_keepalive;
+ hc->keep_tl.data = (ulong)hc;
+ init_timer(&hc->keep_tl);
+ hc->keep_tl.expires = jiffies + 2*HZ; /* two seconds first time */
+ add_timer(&hc->keep_tl);
+
+ hc->timeout_tl.function = (void *)l1oip_timeout;
+ hc->timeout_tl.data = (ulong)hc;
+ init_timer(&hc->timeout_tl);
+ hc->timeout_on = 0; /* state that we have timer off */
+
+ return 0;
+}
+
+static int __init
+l1oip_init(void)
+{
+ int pri, bundle;
+ struct l1oip *hc;
+ int ret;
+
+ printk(KERN_INFO "mISDN: Layer-1-over-IP driver Rev. %s\n",
+ l1oip_revision);
+
+ INIT_LIST_HEAD(&l1oip_ilist);
+ spin_lock_init(&l1oip_lock);
+
+ if (l1oip_4bit_alloc(ulaw))
+ return -ENOMEM;
+
+ l1oip_cnt = 0;
+ while (type[l1oip_cnt] && l1oip_cnt < MAX_CARDS) {
+ switch (type[l1oip_cnt] & 0xff) {
+ case 1:
+ pri = 0;
+ bundle = 0;
+ break;
+ case 2:
+ pri = 1;
+ bundle = 0;
+ break;
+ case 3:
+ pri = 0;
+ bundle = 1;
+ break;
+ case 4:
+ pri = 1;
+ bundle = 1;
+ break;
+ default:
+ printk(KERN_ERR "Card type(%d) not supported.\n",
+ type[l1oip_cnt] & 0xff);
+ l1oip_cleanup();
+ return -EINVAL;
+ }
+
+ if (debug & DEBUG_L1OIP_INIT)
+ printk(KERN_DEBUG "%s: interface %d is %s with %s.\n",
+ __func__, l1oip_cnt, pri?"PRI":"BRI",
+ bundle?"bundled IP packet for all B-channels"
+ :"seperate IP packets for every B-channel");
+
+ hc = kzalloc(sizeof(struct l1oip), GFP_ATOMIC);
+ if (!hc) {
+ printk(KERN_ERR "No kmem for L1-over-IP driver.\n");
+ l1oip_cleanup();
+ return -ENOMEM;
+ }
+ INIT_WORK(&hc->workq, (void *)l1oip_send_bh);
+
+ spin_lock(&l1oip_lock);
+ list_add_tail(&hc->list, &l1oip_ilist);
+ spin_unlock(&l1oip_lock);
+
+ ret = init_card(hc, pri, bundle);
+ if (ret) {
+ l1oip_cleanup();
+ return ret;
+ }
+
+ l1oip_cnt++;
+ }
+ printk(KERN_INFO "%d virtual devices registered\n", l1oip_cnt);
+ return 0;
+}
+
+module_init(l1oip_init);
+module_exit(l1oip_cleanup);
+
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/mISDNhw.h>
+#include "layer1.h"
+#include "fsm.h"
+
+static int *debug;
+
+struct layer1 {
+ u_long Flags;
+ struct FsmInst l1m;
+ struct FsmTimer timer;
+ int delay;
+ struct dchannel *dch;
+ dchannel_l1callback *dcb;
+};
+
+#define TIMER3_VALUE 7000
+
+static
+struct Fsm l1fsm_s = {NULL, 0, 0, NULL, NULL};
+
+enum {
+ ST_L1_F2,
+ ST_L1_F3,
+ ST_L1_F4,
+ ST_L1_F5,
+ ST_L1_F6,
+ ST_L1_F7,
+ ST_L1_F8,
+};
+
+#define L1S_STATE_COUNT (ST_L1_F8+1)
+
+static char *strL1SState[] =
+{
+ "ST_L1_F2",
+ "ST_L1_F3",
+ "ST_L1_F4",
+ "ST_L1_F5",
+ "ST_L1_F6",
+ "ST_L1_F7",
+ "ST_L1_F8",
+};
+
+enum {
+ EV_PH_ACTIVATE,
+ EV_PH_DEACTIVATE,
+ EV_RESET_IND,
+ EV_DEACT_CNF,
+ EV_DEACT_IND,
+ EV_POWER_UP,
+ EV_ANYSIG_IND,
+ EV_INFO2_IND,
+ EV_INFO4_IND,
+ EV_TIMER_DEACT,
+ EV_TIMER_ACT,
+ EV_TIMER3,
+};
+
+#define L1_EVENT_COUNT (EV_TIMER3 + 1)
+
+static char *strL1Event[] =
+{
+ "EV_PH_ACTIVATE",
+ "EV_PH_DEACTIVATE",
+ "EV_RESET_IND",
+ "EV_DEACT_CNF",
+ "EV_DEACT_IND",
+ "EV_POWER_UP",
+ "EV_ANYSIG_IND",
+ "EV_INFO2_IND",
+ "EV_INFO4_IND",
+ "EV_TIMER_DEACT",
+ "EV_TIMER_ACT",
+ "EV_TIMER3",
+};
+
+static void
+l1m_debug(struct FsmInst *fi, char *fmt, ...)
+{
+ struct layer1 *l1 = fi->userdata;
+ va_list va;
+
+ va_start(va, fmt);
+ printk(KERN_DEBUG "%s: ", l1->dch->dev.name);
+ vprintk(fmt, va);
+ printk("\n");
+ va_end(va);
+}
+
+static void
+l1_reset(struct FsmInst *fi, int event, void *arg)
+{
+ mISDN_FsmChangeState(fi, ST_L1_F3);
+}
+
+static void
+l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ mISDN_FsmChangeState(fi, ST_L1_F3);
+ if (test_bit(FLG_L1_ACTIVATING, &l1->Flags))
+ l1->dcb(l1->dch, HW_POWERUP_REQ);
+}
+
+static void
+l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ mISDN_FsmChangeState(fi, ST_L1_F3);
+ mISDN_FsmRestartTimer(&l1->timer, 550, EV_TIMER_DEACT, NULL, 2);
+ test_and_set_bit(FLG_L1_DEACTTIMER, &l1->Flags);
+}
+
+static void
+l1_power_up_s(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ if (test_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
+ mISDN_FsmChangeState(fi, ST_L1_F4);
+ l1->dcb(l1->dch, INFO3_P8);
+ } else
+ mISDN_FsmChangeState(fi, ST_L1_F3);
+}
+
+static void
+l1_go_F5(struct FsmInst *fi, int event, void *arg)
+{
+ mISDN_FsmChangeState(fi, ST_L1_F5);
+}
+
+static void
+l1_go_F8(struct FsmInst *fi, int event, void *arg)
+{
+ mISDN_FsmChangeState(fi, ST_L1_F8);
+}
+
+static void
+l1_info2_ind(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ mISDN_FsmChangeState(fi, ST_L1_F6);
+ l1->dcb(l1->dch, INFO3_P8);
+}
+
+static void
+l1_info4_ind(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ mISDN_FsmChangeState(fi, ST_L1_F7);
+ l1->dcb(l1->dch, INFO3_P8);
+ if (test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags))
+ mISDN_FsmDelTimer(&l1->timer, 4);
+ if (!test_bit(FLG_L1_ACTIVATED, &l1->Flags)) {
+ if (test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags))
+ mISDN_FsmDelTimer(&l1->timer, 3);
+ mISDN_FsmRestartTimer(&l1->timer, 110, EV_TIMER_ACT, NULL, 2);
+ test_and_set_bit(FLG_L1_ACTTIMER, &l1->Flags);
+ }
+}
+
+static void
+l1_timer3(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags);
+ if (test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
+ if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
+ l1->dcb(l1->dch, HW_D_NOBLOCKED);
+ l1->dcb(l1->dch, PH_DEACTIVATE_IND);
+ }
+ if (l1->l1m.state != ST_L1_F6) {
+ mISDN_FsmChangeState(fi, ST_L1_F3);
+ l1->dcb(l1->dch, HW_POWERUP_REQ);
+ }
+}
+
+static void
+l1_timer_act(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ test_and_clear_bit(FLG_L1_ACTTIMER, &l1->Flags);
+ test_and_set_bit(FLG_L1_ACTIVATED, &l1->Flags);
+ l1->dcb(l1->dch, PH_ACTIVATE_IND);
+}
+
+static void
+l1_timer_deact(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags);
+ test_and_clear_bit(FLG_L1_ACTIVATED, &l1->Flags);
+ if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
+ l1->dcb(l1->dch, HW_D_NOBLOCKED);
+ l1->dcb(l1->dch, PH_DEACTIVATE_IND);
+ l1->dcb(l1->dch, HW_DEACT_REQ);
+}
+
+static void
+l1_activate_s(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ mISDN_FsmRestartTimer(&l1->timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
+ test_and_set_bit(FLG_L1_T3RUN, &l1->Flags);
+ l1->dcb(l1->dch, HW_RESET_REQ);
+}
+
+static void
+l1_activate_no(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer1 *l1 = fi->userdata;
+
+ if ((!test_bit(FLG_L1_DEACTTIMER, &l1->Flags)) &&
+ (!test_bit(FLG_L1_T3RUN, &l1->Flags))) {
+ test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags);
+ if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
+ l1->dcb(l1->dch, HW_D_NOBLOCKED);
+ l1->dcb(l1->dch, PH_DEACTIVATE_IND);
+ }
+}
+
+static struct FsmNode L1SFnList[] =
+{
+ {ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
+ {ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
+ {ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
+ {ST_L1_F3, EV_RESET_IND, l1_reset},
+ {ST_L1_F4, EV_RESET_IND, l1_reset},
+ {ST_L1_F5, EV_RESET_IND, l1_reset},
+ {ST_L1_F6, EV_RESET_IND, l1_reset},
+ {ST_L1_F7, EV_RESET_IND, l1_reset},
+ {ST_L1_F8, EV_RESET_IND, l1_reset},
+ {ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
+ {ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
+ {ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
+ {ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
+ {ST_L1_F3, EV_POWER_UP, l1_power_up_s},
+ {ST_L1_F4, EV_ANYSIG_IND, l1_go_F5},
+ {ST_L1_F6, EV_ANYSIG_IND, l1_go_F8},
+ {ST_L1_F7, EV_ANYSIG_IND, l1_go_F8},
+ {ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
+ {ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
+ {ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
+ {ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
+ {ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
+ {ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
+ {ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
+ {ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
+ {ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
+ {ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
+ {ST_L1_F3, EV_TIMER3, l1_timer3},
+ {ST_L1_F4, EV_TIMER3, l1_timer3},
+ {ST_L1_F5, EV_TIMER3, l1_timer3},
+ {ST_L1_F6, EV_TIMER3, l1_timer3},
+ {ST_L1_F8, EV_TIMER3, l1_timer3},
+ {ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
+ {ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
+ {ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
+ {ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
+ {ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
+ {ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
+ {ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
+};
+
+static void
+release_l1(struct layer1 *l1) {
+ mISDN_FsmDelTimer(&l1->timer, 0);
+ if (l1->dch)
+ l1->dch->l1 = NULL;
+ module_put(THIS_MODULE);
+ kfree(l1);
+}
+
+int
+l1_event(struct layer1 *l1, u_int event)
+{
+ int err = 0;
+
+ if (!l1)
+ return -EINVAL;
+ switch (event) {
+ case HW_RESET_IND:
+ mISDN_FsmEvent(&l1->l1m, EV_RESET_IND, NULL);
+ break;
+ case HW_DEACT_IND:
+ mISDN_FsmEvent(&l1->l1m, EV_DEACT_IND, NULL);
+ break;
+ case HW_POWERUP_IND:
+ mISDN_FsmEvent(&l1->l1m, EV_POWER_UP, NULL);
+ break;
+ case HW_DEACT_CNF:
+ mISDN_FsmEvent(&l1->l1m, EV_DEACT_CNF, NULL);
+ break;
+ case ANYSIGNAL:
+ mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
+ break;
+ case LOSTFRAMING:
+ mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
+ break;
+ case INFO2:
+ mISDN_FsmEvent(&l1->l1m, EV_INFO2_IND, NULL);
+ break;
+ case INFO4_P8:
+ mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
+ break;
+ case INFO4_P10:
+ mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
+ break;
+ case PH_ACTIVATE_REQ:
+ if (test_bit(FLG_L1_ACTIVATED, &l1->Flags))
+ l1->dcb(l1->dch, PH_ACTIVATE_IND);
+ else {
+ test_and_set_bit(FLG_L1_ACTIVATING, &l1->Flags);
+ mISDN_FsmEvent(&l1->l1m, EV_PH_ACTIVATE, NULL);
+ }
+ break;
+ case CLOSE_CHANNEL:
+ release_l1(l1);
+ break;
+ default:
+ if (*debug & DEBUG_L1)
+ printk(KERN_DEBUG "%s %x unhandled\n",
+ __func__, event);
+ err = -EINVAL;
+ }
+ return err;
+}
+EXPORT_SYMBOL(l1_event);
+
+int
+create_l1(struct dchannel *dch, dchannel_l1callback *dcb) {
+ struct layer1 *nl1;
+
+ nl1 = kzalloc(sizeof(struct layer1), GFP_ATOMIC);
+ if (!nl1) {
+ printk(KERN_ERR "kmalloc struct layer1 failed\n");
+ return -ENOMEM;
+ }
+ nl1->l1m.fsm = &l1fsm_s;
+ nl1->l1m.state = ST_L1_F3;
+ nl1->Flags = 0;
+ nl1->l1m.debug = *debug & DEBUG_L1_FSM;
+ nl1->l1m.userdata = nl1;
+ nl1->l1m.userint = 0;
+ nl1->l1m.printdebug = l1m_debug;
+ nl1->dch = dch;
+ nl1->dcb = dcb;
+ mISDN_FsmInitTimer(&nl1->l1m, &nl1->timer);
+ __module_get(THIS_MODULE);
+ dch->l1 = nl1;
+ return 0;
+}
+EXPORT_SYMBOL(create_l1);
+
+int
+l1_init(u_int *deb)
+{
+ debug = deb;
+ l1fsm_s.state_count = L1S_STATE_COUNT;
+ l1fsm_s.event_count = L1_EVENT_COUNT;
+ l1fsm_s.strEvent = strL1Event;
+ l1fsm_s.strState = strL1SState;
+ mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList));
+ return 0;
+}
+
+void
+l1_cleanup(void)
+{
+ mISDN_FsmFree(&l1fsm_s);
+}
--- /dev/null
+/*
+ *
+ * Layer 1 defines
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#define FLG_L1_ACTIVATING 1
+#define FLG_L1_ACTIVATED 2
+#define FLG_L1_DEACTTIMER 3
+#define FLG_L1_ACTTIMER 4
+#define FLG_L1_T3RUN 5
+#define FLG_L1_PULL_REQ 6
+#define FLG_L1_UINT 7
+#define FLG_L1_DBLOCKED 8
+
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include "fsm.h"
+#include "layer2.h"
+
+static int *debug;
+
+static
+struct Fsm l2fsm = {NULL, 0, 0, NULL, NULL};
+
+static char *strL2State[] =
+{
+ "ST_L2_1",
+ "ST_L2_2",
+ "ST_L2_3",
+ "ST_L2_4",
+ "ST_L2_5",
+ "ST_L2_6",
+ "ST_L2_7",
+ "ST_L2_8",
+};
+
+enum {
+ EV_L2_UI,
+ EV_L2_SABME,
+ EV_L2_DISC,
+ EV_L2_DM,
+ EV_L2_UA,
+ EV_L2_FRMR,
+ EV_L2_SUPER,
+ EV_L2_I,
+ EV_L2_DL_DATA,
+ EV_L2_ACK_PULL,
+ EV_L2_DL_UNITDATA,
+ EV_L2_DL_ESTABLISH_REQ,
+ EV_L2_DL_RELEASE_REQ,
+ EV_L2_MDL_ASSIGN,
+ EV_L2_MDL_REMOVE,
+ EV_L2_MDL_ERROR,
+ EV_L1_DEACTIVATE,
+ EV_L2_T200,
+ EV_L2_T203,
+ EV_L2_SET_OWN_BUSY,
+ EV_L2_CLEAR_OWN_BUSY,
+ EV_L2_FRAME_ERROR,
+};
+
+#define L2_EVENT_COUNT (EV_L2_FRAME_ERROR+1)
+
+static char *strL2Event[] =
+{
+ "EV_L2_UI",
+ "EV_L2_SABME",
+ "EV_L2_DISC",
+ "EV_L2_DM",
+ "EV_L2_UA",
+ "EV_L2_FRMR",
+ "EV_L2_SUPER",
+ "EV_L2_I",
+ "EV_L2_DL_DATA",
+ "EV_L2_ACK_PULL",
+ "EV_L2_DL_UNITDATA",
+ "EV_L2_DL_ESTABLISH_REQ",
+ "EV_L2_DL_RELEASE_REQ",
+ "EV_L2_MDL_ASSIGN",
+ "EV_L2_MDL_REMOVE",
+ "EV_L2_MDL_ERROR",
+ "EV_L1_DEACTIVATE",
+ "EV_L2_T200",
+ "EV_L2_T203",
+ "EV_L2_SET_OWN_BUSY",
+ "EV_L2_CLEAR_OWN_BUSY",
+ "EV_L2_FRAME_ERROR",
+};
+
+static void
+l2m_debug(struct FsmInst *fi, char *fmt, ...)
+{
+ struct layer2 *l2 = fi->userdata;
+ va_list va;
+
+ if (!(*debug & DEBUG_L2_FSM))
+ return;
+ va_start(va, fmt);
+ printk(KERN_DEBUG "l2 (tei %d): ", l2->tei);
+ vprintk(fmt, va);
+ printk("\n");
+ va_end(va);
+}
+
+inline u_int
+l2headersize(struct layer2 *l2, int ui)
+{
+ return ((test_bit(FLG_MOD128, &l2->flag) && (!ui)) ? 2 : 1) +
+ (test_bit(FLG_LAPD, &l2->flag) ? 2 : 1);
+}
+
+inline u_int
+l2addrsize(struct layer2 *l2)
+{
+ return test_bit(FLG_LAPD, &l2->flag) ? 2 : 1;
+}
+
+static u_int
+l2_newid(struct layer2 *l2)
+{
+ u_int id;
+
+ id = l2->next_id++;
+ if (id == 0x7fff)
+ l2->next_id = 1;
+ id <<= 16;
+ id |= l2->tei << 8;
+ id |= l2->sapi;
+ return id;
+}
+
+static void
+l2up(struct layer2 *l2, u_int prim, struct sk_buff *skb)
+{
+ int err;
+
+ if (!l2->up)
+ return;
+ mISDN_HEAD_PRIM(skb) = prim;
+ mISDN_HEAD_ID(skb) = (l2->ch.nr << 16) | l2->ch.addr;
+ err = l2->up->send(l2->up, skb);
+ if (err) {
+ printk(KERN_WARNING "%s: err=%d\n", __func__, err);
+ dev_kfree_skb(skb);
+ }
+}
+
+static void
+l2up_create(struct layer2 *l2, u_int prim, int len, void *arg)
+{
+ struct sk_buff *skb;
+ struct mISDNhead *hh;
+ int err;
+
+ if (!l2->up)
+ return;
+ skb = mI_alloc_skb(len, GFP_ATOMIC);
+ if (!skb)
+ return;
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = prim;
+ hh->id = (l2->ch.nr << 16) | l2->ch.addr;
+ if (len)
+ memcpy(skb_put(skb, len), arg, len);
+ err = l2->up->send(l2->up, skb);
+ if (err) {
+ printk(KERN_WARNING "%s: err=%d\n", __func__, err);
+ dev_kfree_skb(skb);
+ }
+}
+
+static int
+l2down_skb(struct layer2 *l2, struct sk_buff *skb) {
+ int ret;
+
+ ret = l2->ch.recv(l2->ch.peer, skb);
+ if (ret && (*debug & DEBUG_L2_RECV))
+ printk(KERN_DEBUG "l2down_skb: ret(%d)\n", ret);
+ return ret;
+}
+
+static int
+l2down_raw(struct layer2 *l2, struct sk_buff *skb)
+{
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+
+ if (hh->prim == PH_DATA_REQ) {
+ if (test_and_set_bit(FLG_L1_NOTREADY, &l2->flag)) {
+ skb_queue_tail(&l2->down_queue, skb);
+ return 0;
+ }
+ l2->down_id = mISDN_HEAD_ID(skb);
+ }
+ return l2down_skb(l2, skb);
+}
+
+static int
+l2down(struct layer2 *l2, u_int prim, u_int id, struct sk_buff *skb)
+{
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+
+ hh->prim = prim;
+ hh->id = id;
+ return l2down_raw(l2, skb);
+}
+
+static int
+l2down_create(struct layer2 *l2, u_int prim, u_int id, int len, void *arg)
+{
+ struct sk_buff *skb;
+ int err;
+ struct mISDNhead *hh;
+
+ skb = mI_alloc_skb(len, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = prim;
+ hh->id = id;
+ if (len)
+ memcpy(skb_put(skb, len), arg, len);
+ err = l2down_raw(l2, skb);
+ if (err)
+ dev_kfree_skb(skb);
+ return err;
+}
+
+static int
+ph_data_confirm(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb) {
+ struct sk_buff *nskb = skb;
+ int ret = -EAGAIN;
+
+ if (test_bit(FLG_L1_NOTREADY, &l2->flag)) {
+ if (hh->id == l2->down_id) {
+ nskb = skb_dequeue(&l2->down_queue);
+ if (nskb) {
+ l2->down_id = mISDN_HEAD_ID(nskb);
+ if (l2down_skb(l2, nskb)) {
+ dev_kfree_skb(nskb);
+ l2->down_id = MISDN_ID_NONE;
+ }
+ } else
+ l2->down_id = MISDN_ID_NONE;
+ if (ret) {
+ dev_kfree_skb(skb);
+ ret = 0;
+ }
+ if (l2->down_id == MISDN_ID_NONE) {
+ test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag);
+ mISDN_FsmEvent(&l2->l2m, EV_L2_ACK_PULL, NULL);
+ }
+ }
+ }
+ if (!test_and_set_bit(FLG_L1_NOTREADY, &l2->flag)) {
+ nskb = skb_dequeue(&l2->down_queue);
+ if (nskb) {
+ l2->down_id = mISDN_HEAD_ID(nskb);
+ if (l2down_skb(l2, nskb)) {
+ dev_kfree_skb(nskb);
+ l2->down_id = MISDN_ID_NONE;
+ test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag);
+ }
+ } else
+ test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag);
+ }
+ return ret;
+}
+
+static int
+l2mgr(struct layer2 *l2, u_int prim, void *arg) {
+ long c = (long)arg;
+
+ printk(KERN_WARNING
+ "l2mgr: addr:%x prim %x %c\n", l2->id, prim, (char)c);
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ !test_bit(FLG_FIXED_TEI, &l2->flag)) {
+ switch (c) {
+ case 'C':
+ case 'D':
+ case 'G':
+ case 'H':
+ l2_tei(l2, prim, (u_long)arg);
+ break;
+ }
+ }
+ return 0;
+}
+
+static void
+set_peer_busy(struct layer2 *l2) {
+ test_and_set_bit(FLG_PEER_BUSY, &l2->flag);
+ if (skb_queue_len(&l2->i_queue) || skb_queue_len(&l2->ui_queue))
+ test_and_set_bit(FLG_L2BLOCK, &l2->flag);
+}
+
+static void
+clear_peer_busy(struct layer2 *l2) {
+ if (test_and_clear_bit(FLG_PEER_BUSY, &l2->flag))
+ test_and_clear_bit(FLG_L2BLOCK, &l2->flag);
+}
+
+static void
+InitWin(struct layer2 *l2)
+{
+ int i;
+
+ for (i = 0; i < MAX_WINDOW; i++)
+ l2->windowar[i] = NULL;
+}
+
+static int
+freewin(struct layer2 *l2)
+{
+ int i, cnt = 0;
+
+ for (i = 0; i < MAX_WINDOW; i++) {
+ if (l2->windowar[i]) {
+ cnt++;
+ dev_kfree_skb(l2->windowar[i]);
+ l2->windowar[i] = NULL;
+ }
+ }
+ return cnt;
+}
+
+static void
+ReleaseWin(struct layer2 *l2)
+{
+ int cnt = freewin(l2);
+
+ if (cnt)
+ printk(KERN_WARNING
+ "isdnl2 freed %d skbuffs in release\n", cnt);
+}
+
+inline unsigned int
+cansend(struct layer2 *l2)
+{
+ unsigned int p1;
+
+ if (test_bit(FLG_MOD128, &l2->flag))
+ p1 = (l2->vs - l2->va) % 128;
+ else
+ p1 = (l2->vs - l2->va) % 8;
+ return (p1 < l2->window) && !test_bit(FLG_PEER_BUSY, &l2->flag);
+}
+
+inline void
+clear_exception(struct layer2 *l2)
+{
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ test_and_clear_bit(FLG_REJEXC, &l2->flag);
+ test_and_clear_bit(FLG_OWN_BUSY, &l2->flag);
+ clear_peer_busy(l2);
+}
+
+static int
+sethdraddr(struct layer2 *l2, u_char *header, int rsp)
+{
+ u_char *ptr = header;
+ int crbit = rsp;
+
+ if (test_bit(FLG_LAPD, &l2->flag)) {
+ if (test_bit(FLG_LAPD_NET, &l2->flag))
+ crbit = !crbit;
+ *ptr++ = (l2->sapi << 2) | (crbit ? 2 : 0);
+ *ptr++ = (l2->tei << 1) | 1;
+ return 2;
+ } else {
+ if (test_bit(FLG_ORIG, &l2->flag))
+ crbit = !crbit;
+ if (crbit)
+ *ptr++ = l2->addr.B;
+ else
+ *ptr++ = l2->addr.A;
+ return 1;
+ }
+}
+
+static inline void
+enqueue_super(struct layer2 *l2, struct sk_buff *skb)
+{
+ if (l2down(l2, PH_DATA_REQ, l2_newid(l2), skb))
+ dev_kfree_skb(skb);
+}
+
+static inline void
+enqueue_ui(struct layer2 *l2, struct sk_buff *skb)
+{
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_UI_IND, 0);
+ if (l2down(l2, PH_DATA_REQ, l2_newid(l2), skb))
+ dev_kfree_skb(skb);
+}
+
+inline int
+IsUI(u_char *data)
+{
+ return (data[0] & 0xef) == UI;
+}
+
+inline int
+IsUA(u_char *data)
+{
+ return (data[0] & 0xef) == UA;
+}
+
+inline int
+IsDM(u_char *data)
+{
+ return (data[0] & 0xef) == DM;
+}
+
+inline int
+IsDISC(u_char *data)
+{
+ return (data[0] & 0xef) == DISC;
+}
+
+inline int
+IsRR(u_char *data, struct layer2 *l2)
+{
+ if (test_bit(FLG_MOD128, &l2->flag))
+ return data[0] == RR;
+ else
+ return (data[0] & 0xf) == 1;
+}
+
+inline int
+IsSFrame(u_char *data, struct layer2 *l2)
+{
+ register u_char d = *data;
+
+ if (!test_bit(FLG_MOD128, &l2->flag))
+ d &= 0xf;
+ return ((d & 0xf3) == 1) && ((d & 0x0c) != 0x0c);
+}
+
+inline int
+IsSABME(u_char *data, struct layer2 *l2)
+{
+ u_char d = data[0] & ~0x10;
+
+ return test_bit(FLG_MOD128, &l2->flag) ? d == SABME : d == SABM;
+}
+
+inline int
+IsREJ(u_char *data, struct layer2 *l2)
+{
+ return test_bit(FLG_MOD128, &l2->flag) ?
+ data[0] == REJ : (data[0] & 0xf) == REJ;
+}
+
+inline int
+IsFRMR(u_char *data)
+{
+ return (data[0] & 0xef) == FRMR;
+}
+
+inline int
+IsRNR(u_char *data, struct layer2 *l2)
+{
+ return test_bit(FLG_MOD128, &l2->flag) ?
+ data[0] == RNR : (data[0] & 0xf) == RNR;
+}
+
+int
+iframe_error(struct layer2 *l2, struct sk_buff *skb)
+{
+ u_int i;
+ int rsp = *skb->data & 0x2;
+
+ i = l2addrsize(l2) + (test_bit(FLG_MOD128, &l2->flag) ? 2 : 1);
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+ if (rsp)
+ return 'L';
+ if (skb->len < i)
+ return 'N';
+ if ((skb->len - i) > l2->maxlen)
+ return 'O';
+ return 0;
+}
+
+int
+super_error(struct layer2 *l2, struct sk_buff *skb)
+{
+ if (skb->len != l2addrsize(l2) +
+ (test_bit(FLG_MOD128, &l2->flag) ? 2 : 1))
+ return 'N';
+ return 0;
+}
+
+int
+unnum_error(struct layer2 *l2, struct sk_buff *skb, int wantrsp)
+{
+ int rsp = (*skb->data & 0x2) >> 1;
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+ if (rsp != wantrsp)
+ return 'L';
+ if (skb->len != l2addrsize(l2) + 1)
+ return 'N';
+ return 0;
+}
+
+int
+UI_error(struct layer2 *l2, struct sk_buff *skb)
+{
+ int rsp = *skb->data & 0x2;
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+ if (rsp)
+ return 'L';
+ if (skb->len > l2->maxlen + l2addrsize(l2) + 1)
+ return 'O';
+ return 0;
+}
+
+int
+FRMR_error(struct layer2 *l2, struct sk_buff *skb)
+{
+ u_int headers = l2addrsize(l2) + 1;
+ u_char *datap = skb->data + headers;
+ int rsp = *skb->data & 0x2;
+
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+ if (!rsp)
+ return 'L';
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ if (skb->len < headers + 5)
+ return 'N';
+ else if (*debug & DEBUG_L2)
+ l2m_debug(&l2->l2m,
+ "FRMR information %2x %2x %2x %2x %2x",
+ datap[0], datap[1], datap[2], datap[3], datap[4]);
+ } else {
+ if (skb->len < headers + 3)
+ return 'N';
+ else if (*debug & DEBUG_L2)
+ l2m_debug(&l2->l2m,
+ "FRMR information %2x %2x %2x",
+ datap[0], datap[1], datap[2]);
+ }
+ return 0;
+}
+
+static unsigned int
+legalnr(struct layer2 *l2, unsigned int nr)
+{
+ if (test_bit(FLG_MOD128, &l2->flag))
+ return ((nr - l2->va) % 128) <= ((l2->vs - l2->va) % 128);
+ else
+ return ((nr - l2->va) % 8) <= ((l2->vs - l2->va) % 8);
+}
+
+static void
+setva(struct layer2 *l2, unsigned int nr)
+{
+ struct sk_buff *skb;
+
+ while (l2->va != nr) {
+ l2->va++;
+ if (test_bit(FLG_MOD128, &l2->flag))
+ l2->va %= 128;
+ else
+ l2->va %= 8;
+ if (l2->windowar[l2->sow]) {
+ skb_trim(l2->windowar[l2->sow], 0);
+ skb_queue_tail(&l2->tmp_queue, l2->windowar[l2->sow]);
+ l2->windowar[l2->sow] = NULL;
+ }
+ l2->sow = (l2->sow + 1) % l2->window;
+ }
+ skb = skb_dequeue(&l2->tmp_queue);
+ while (skb) {
+ dev_kfree_skb(skb);
+ skb = skb_dequeue(&l2->tmp_queue);
+ }
+}
+
+static void
+send_uframe(struct layer2 *l2, struct sk_buff *skb, u_char cmd, u_char cr)
+{
+ u_char tmp[MAX_L2HEADER_LEN];
+ int i;
+
+ i = sethdraddr(l2, tmp, cr);
+ tmp[i++] = cmd;
+ if (skb)
+ skb_trim(skb, 0);
+ else {
+ skb = mI_alloc_skb(i, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_WARNING "%s: can't alloc skbuff\n",
+ __func__);
+ return;
+ }
+ }
+ memcpy(skb_put(skb, i), tmp, i);
+ enqueue_super(l2, skb);
+}
+
+
+inline u_char
+get_PollFlag(struct layer2 *l2, struct sk_buff *skb)
+{
+ return skb->data[l2addrsize(l2)] & 0x10;
+}
+
+inline u_char
+get_PollFlagFree(struct layer2 *l2, struct sk_buff *skb)
+{
+ u_char PF;
+
+ PF = get_PollFlag(l2, skb);
+ dev_kfree_skb(skb);
+ return PF;
+}
+
+inline void
+start_t200(struct layer2 *l2, int i)
+{
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, i);
+ test_and_set_bit(FLG_T200_RUN, &l2->flag);
+}
+
+inline void
+restart_t200(struct layer2 *l2, int i)
+{
+ mISDN_FsmRestartTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, i);
+ test_and_set_bit(FLG_T200_RUN, &l2->flag);
+}
+
+inline void
+stop_t200(struct layer2 *l2, int i)
+{
+ if (test_and_clear_bit(FLG_T200_RUN, &l2->flag))
+ mISDN_FsmDelTimer(&l2->t200, i);
+}
+
+inline void
+st5_dl_release_l2l3(struct layer2 *l2)
+{
+ int pr;
+
+ if (test_and_clear_bit(FLG_PEND_REL, &l2->flag))
+ pr = DL_RELEASE_CNF;
+ else
+ pr = DL_RELEASE_IND;
+ l2up_create(l2, pr, 0, NULL);
+}
+
+inline void
+lapb_dl_release_l2l3(struct layer2 *l2, int f)
+{
+ if (test_bit(FLG_LAPB, &l2->flag))
+ l2down_create(l2, PH_DEACTIVATE_REQ, l2_newid(l2), 0, NULL);
+ l2up_create(l2, f, 0, NULL);
+}
+
+static void
+establishlink(struct FsmInst *fi)
+{
+ struct layer2 *l2 = fi->userdata;
+ u_char cmd;
+
+ clear_exception(l2);
+ l2->rc = 0;
+ cmd = (test_bit(FLG_MOD128, &l2->flag) ? SABME : SABM) | 0x10;
+ send_uframe(l2, NULL, cmd, CMD);
+ mISDN_FsmDelTimer(&l2->t203, 1);
+ restart_t200(l2, 1);
+ test_and_clear_bit(FLG_PEND_REL, &l2->flag);
+ freewin(l2);
+ mISDN_FsmChangeState(fi, ST_L2_5);
+}
+
+static void
+l2_mdl_error_ua(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ if (get_PollFlagFree(l2, skb))
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'C');
+ else
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'D');
+
+}
+
+static void
+l2_mdl_error_dm(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ if (get_PollFlagFree(l2, skb))
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'B');
+ else {
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'E');
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+ }
+}
+
+static void
+l2_st8_mdl_error_dm(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ if (get_PollFlagFree(l2, skb))
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'B');
+ else
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'E');
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+}
+
+static void
+l2_go_st3(struct FsmInst *fi, int event, void *arg)
+{
+ dev_kfree_skb((struct sk_buff *)arg);
+ mISDN_FsmChangeState(fi, ST_L2_3);
+}
+
+static void
+l2_mdl_assign(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ mISDN_FsmChangeState(fi, ST_L2_3);
+ dev_kfree_skb((struct sk_buff *)arg);
+ l2_tei(l2, MDL_ASSIGN_IND, 0);
+}
+
+static void
+l2_queue_ui_assign(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_tail(&l2->ui_queue, skb);
+ mISDN_FsmChangeState(fi, ST_L2_2);
+ l2_tei(l2, MDL_ASSIGN_IND, 0);
+}
+
+static void
+l2_queue_ui(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_tail(&l2->ui_queue, skb);
+}
+
+static void
+tx_ui(struct layer2 *l2)
+{
+ struct sk_buff *skb;
+ u_char header[MAX_L2HEADER_LEN];
+ int i;
+
+ i = sethdraddr(l2, header, CMD);
+ if (test_bit(FLG_LAPD_NET, &l2->flag))
+ header[1] = 0xff; /* tei 127 */
+ header[i++] = UI;
+ while ((skb = skb_dequeue(&l2->ui_queue))) {
+ memcpy(skb_push(skb, i), header, i);
+ enqueue_ui(l2, skb);
+ }
+}
+
+static void
+l2_send_ui(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_tail(&l2->ui_queue, skb);
+ tx_ui(l2);
+}
+
+static void
+l2_got_ui(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_pull(skb, l2headersize(l2, 1));
+/*
+ * in states 1-3 for broadcast
+ */
+
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_UI_IND, 0);
+ l2up(l2, DL_UNITDATA_IND, skb);
+}
+
+static void
+l2_establish(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ establishlink(fi);
+ test_and_set_bit(FLG_L3_INIT, &l2->flag);
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_discard_i_setl3(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->i_queue);
+ test_and_set_bit(FLG_L3_INIT, &l2->flag);
+ test_and_clear_bit(FLG_PEND_REL, &l2->flag);
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_l3_reestablish(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->i_queue);
+ establishlink(fi);
+ test_and_set_bit(FLG_L3_INIT, &l2->flag);
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_release(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_trim(skb, 0);
+ l2up(l2, DL_RELEASE_CNF, skb);
+}
+
+static void
+l2_pend_rel(struct FsmInst *fi, int event, void *arg)
+{
+ struct sk_buff *skb = arg;
+ struct layer2 *l2 = fi->userdata;
+
+ test_and_set_bit(FLG_PEND_REL, &l2->flag);
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_disconnect(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_purge(&l2->i_queue);
+ freewin(l2);
+ mISDN_FsmChangeState(fi, ST_L2_6);
+ l2->rc = 0;
+ send_uframe(l2, NULL, DISC | 0x10, CMD);
+ mISDN_FsmDelTimer(&l2->t203, 1);
+ restart_t200(l2, 2);
+ if (skb)
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_start_multi(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ l2->vs = 0;
+ l2->va = 0;
+ l2->vr = 0;
+ l2->sow = 0;
+ clear_exception(l2);
+ send_uframe(l2, NULL, UA | get_PollFlag(l2, skb), RSP);
+ mISDN_FsmChangeState(fi, ST_L2_7);
+ mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 3);
+ skb_trim(skb, 0);
+ l2up(l2, DL_ESTABLISH_IND, skb);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_UP_IND, 0);
+}
+
+static void
+l2_send_UA(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP);
+}
+
+static void
+l2_send_DM(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ send_uframe(l2, skb, DM | get_PollFlag(l2, skb), RSP);
+}
+
+static void
+l2_restart_multi(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+ int est = 0;
+
+ send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP);
+
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'F');
+
+ if (l2->vs != l2->va) {
+ skb_queue_purge(&l2->i_queue);
+ est = 1;
+ }
+
+ clear_exception(l2);
+ l2->vs = 0;
+ l2->va = 0;
+ l2->vr = 0;
+ l2->sow = 0;
+ mISDN_FsmChangeState(fi, ST_L2_7);
+ stop_t200(l2, 3);
+ mISDN_FsmRestartTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 3);
+
+ if (est)
+ l2up_create(l2, DL_ESTABLISH_IND, 0, NULL);
+/* mISDN_queue_data(&l2->inst, l2->inst.id | MSG_BROADCAST,
+ * MGR_SHORTSTATUS | INDICATION, SSTATUS_L2_ESTABLISHED,
+ * 0, NULL, 0);
+ */
+ if (skb_queue_len(&l2->i_queue) && cansend(l2))
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+}
+
+static void
+l2_stop_multi(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ mISDN_FsmDelTimer(&l2->t203, 3);
+ stop_t200(l2, 4);
+
+ send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP);
+ skb_queue_purge(&l2->i_queue);
+ freewin(l2);
+ lapb_dl_release_l2l3(l2, DL_RELEASE_IND);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+}
+
+static void
+l2_connected(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+ int pr = -1;
+
+ if (!get_PollFlag(l2, skb)) {
+ l2_mdl_error_ua(fi, event, arg);
+ return;
+ }
+ dev_kfree_skb(skb);
+ if (test_and_clear_bit(FLG_PEND_REL, &l2->flag))
+ l2_disconnect(fi, event, NULL);
+ if (test_and_clear_bit(FLG_L3_INIT, &l2->flag)) {
+ pr = DL_ESTABLISH_CNF;
+ } else if (l2->vs != l2->va) {
+ skb_queue_purge(&l2->i_queue);
+ pr = DL_ESTABLISH_IND;
+ }
+ stop_t200(l2, 5);
+ l2->vr = 0;
+ l2->vs = 0;
+ l2->va = 0;
+ l2->sow = 0;
+ mISDN_FsmChangeState(fi, ST_L2_7);
+ mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 4);
+ if (pr != -1)
+ l2up_create(l2, pr, 0, NULL);
+
+ if (skb_queue_len(&l2->i_queue) && cansend(l2))
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_UP_IND, 0);
+}
+
+static void
+l2_released(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (!get_PollFlag(l2, skb)) {
+ l2_mdl_error_ua(fi, event, arg);
+ return;
+ }
+ dev_kfree_skb(skb);
+ stop_t200(l2, 6);
+ lapb_dl_release_l2l3(l2, DL_RELEASE_CNF);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+}
+
+static void
+l2_reestablish(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (!get_PollFlagFree(l2, skb)) {
+ establishlink(fi);
+ test_and_set_bit(FLG_L3_INIT, &l2->flag);
+ }
+}
+
+static void
+l2_st5_dm_release(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (get_PollFlagFree(l2, skb)) {
+ stop_t200(l2, 7);
+ if (!test_bit(FLG_L3_INIT, &l2->flag))
+ skb_queue_purge(&l2->i_queue);
+ if (test_bit(FLG_LAPB, &l2->flag))
+ l2down_create(l2, PH_DEACTIVATE_REQ,
+ l2_newid(l2), 0, NULL);
+ st5_dl_release_l2l3(l2);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+ }
+}
+
+static void
+l2_st6_dm_release(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (get_PollFlagFree(l2, skb)) {
+ stop_t200(l2, 8);
+ lapb_dl_release_l2l3(l2, DL_RELEASE_CNF);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+ }
+}
+
+void
+enquiry_cr(struct layer2 *l2, u_char typ, u_char cr, u_char pf)
+{
+ struct sk_buff *skb;
+ u_char tmp[MAX_L2HEADER_LEN];
+ int i;
+
+ i = sethdraddr(l2, tmp, cr);
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ tmp[i++] = typ;
+ tmp[i++] = (l2->vr << 1) | (pf ? 1 : 0);
+ } else
+ tmp[i++] = (l2->vr << 5) | typ | (pf ? 0x10 : 0);
+ skb = mI_alloc_skb(i, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_WARNING
+ "isdnl2 can't alloc sbbuff for enquiry_cr\n");
+ return;
+ }
+ memcpy(skb_put(skb, i), tmp, i);
+ enqueue_super(l2, skb);
+}
+
+inline void
+enquiry_response(struct layer2 *l2)
+{
+ if (test_bit(FLG_OWN_BUSY, &l2->flag))
+ enquiry_cr(l2, RNR, RSP, 1);
+ else
+ enquiry_cr(l2, RR, RSP, 1);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+}
+
+inline void
+transmit_enquiry(struct layer2 *l2)
+{
+ if (test_bit(FLG_OWN_BUSY, &l2->flag))
+ enquiry_cr(l2, RNR, CMD, 1);
+ else
+ enquiry_cr(l2, RR, CMD, 1);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ start_t200(l2, 9);
+}
+
+
+static void
+nrerrorrecovery(struct FsmInst *fi)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'J');
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+}
+
+static void
+invoke_retransmission(struct layer2 *l2, unsigned int nr)
+{
+ u_int p1;
+
+ if (l2->vs != nr) {
+ while (l2->vs != nr) {
+ (l2->vs)--;
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ l2->vs %= 128;
+ p1 = (l2->vs - l2->va) % 128;
+ } else {
+ l2->vs %= 8;
+ p1 = (l2->vs - l2->va) % 8;
+ }
+ p1 = (p1 + l2->sow) % l2->window;
+ if (l2->windowar[p1])
+ skb_queue_head(&l2->i_queue, l2->windowar[p1]);
+ else
+ printk(KERN_WARNING
+ "%s: windowar[%d] is NULL\n",
+ __func__, p1);
+ l2->windowar[p1] = NULL;
+ }
+ mISDN_FsmEvent(&l2->l2m, EV_L2_ACK_PULL, NULL);
+ }
+}
+
+static void
+l2_st7_got_super(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+ int PollFlag, rsp, typ = RR;
+ unsigned int nr;
+
+ rsp = *skb->data & 0x2;
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+
+ skb_pull(skb, l2addrsize(l2));
+ if (IsRNR(skb->data, l2)) {
+ set_peer_busy(l2);
+ typ = RNR;
+ } else
+ clear_peer_busy(l2);
+ if (IsREJ(skb->data, l2))
+ typ = REJ;
+
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ PollFlag = (skb->data[1] & 0x1) == 0x1;
+ nr = skb->data[1] >> 1;
+ } else {
+ PollFlag = (skb->data[0] & 0x10);
+ nr = (skb->data[0] >> 5) & 0x7;
+ }
+ dev_kfree_skb(skb);
+
+ if (PollFlag) {
+ if (rsp)
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'A');
+ else
+ enquiry_response(l2);
+ }
+ if (legalnr(l2, nr)) {
+ if (typ == REJ) {
+ setva(l2, nr);
+ invoke_retransmission(l2, nr);
+ stop_t200(l2, 10);
+ if (mISDN_FsmAddTimer(&l2->t203, l2->T203,
+ EV_L2_T203, NULL, 6))
+ l2m_debug(&l2->l2m, "Restart T203 ST7 REJ");
+ } else if ((nr == l2->vs) && (typ == RR)) {
+ setva(l2, nr);
+ stop_t200(l2, 11);
+ mISDN_FsmRestartTimer(&l2->t203, l2->T203,
+ EV_L2_T203, NULL, 7);
+ } else if ((l2->va != nr) || (typ == RNR)) {
+ setva(l2, nr);
+ if (typ != RR)
+ mISDN_FsmDelTimer(&l2->t203, 9);
+ restart_t200(l2, 12);
+ }
+ if (skb_queue_len(&l2->i_queue) && (typ == RR))
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+ } else
+ nrerrorrecovery(fi);
+}
+
+static void
+l2_feed_i_if_reest(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (!test_bit(FLG_L3_INIT, &l2->flag))
+ skb_queue_tail(&l2->i_queue, skb);
+ else
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_feed_i_pull(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_tail(&l2->i_queue, skb);
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+}
+
+static void
+l2_feed_iqueue(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_tail(&l2->i_queue, skb);
+}
+
+static void
+l2_got_iframe(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+ int PollFlag, i;
+ u_int ns, nr;
+
+ i = l2addrsize(l2);
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ PollFlag = ((skb->data[i + 1] & 0x1) == 0x1);
+ ns = skb->data[i] >> 1;
+ nr = (skb->data[i + 1] >> 1) & 0x7f;
+ } else {
+ PollFlag = (skb->data[i] & 0x10);
+ ns = (skb->data[i] >> 1) & 0x7;
+ nr = (skb->data[i] >> 5) & 0x7;
+ }
+ if (test_bit(FLG_OWN_BUSY, &l2->flag)) {
+ dev_kfree_skb(skb);
+ if (PollFlag)
+ enquiry_response(l2);
+ } else {
+ if (l2->vr == ns) {
+ l2->vr++;
+ if (test_bit(FLG_MOD128, &l2->flag))
+ l2->vr %= 128;
+ else
+ l2->vr %= 8;
+ test_and_clear_bit(FLG_REJEXC, &l2->flag);
+ if (PollFlag)
+ enquiry_response(l2);
+ else
+ test_and_set_bit(FLG_ACK_PEND, &l2->flag);
+ skb_pull(skb, l2headersize(l2, 0));
+ l2up(l2, DL_DATA_IND, skb);
+ } else {
+ /* n(s)!=v(r) */
+ dev_kfree_skb(skb);
+ if (test_and_set_bit(FLG_REJEXC, &l2->flag)) {
+ if (PollFlag)
+ enquiry_response(l2);
+ } else {
+ enquiry_cr(l2, REJ, RSP, PollFlag);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ }
+ }
+ }
+ if (legalnr(l2, nr)) {
+ if (!test_bit(FLG_PEER_BUSY, &l2->flag) &&
+ (fi->state == ST_L2_7)) {
+ if (nr == l2->vs) {
+ stop_t200(l2, 13);
+ mISDN_FsmRestartTimer(&l2->t203, l2->T203,
+ EV_L2_T203, NULL, 7);
+ } else if (nr != l2->va)
+ restart_t200(l2, 14);
+ }
+ setva(l2, nr);
+ } else {
+ nrerrorrecovery(fi);
+ return;
+ }
+ if (skb_queue_len(&l2->i_queue) && (fi->state == ST_L2_7))
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+ if (test_and_clear_bit(FLG_ACK_PEND, &l2->flag))
+ enquiry_cr(l2, RR, RSP, 0);
+}
+
+static void
+l2_got_tei(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ u_int info;
+
+ l2->tei = (signed char)(long)arg;
+ set_channel_address(&l2->ch, l2->sapi, l2->tei);
+ info = DL_INFO_L2_CONNECT;
+ l2up_create(l2, DL_INFORMATION_IND, sizeof(info), &info);
+ if (fi->state == ST_L2_3) {
+ establishlink(fi);
+ test_and_set_bit(FLG_L3_INIT, &l2->flag);
+ } else
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (skb_queue_len(&l2->ui_queue))
+ tx_ui(l2);
+}
+
+static void
+l2_st5_tout_200(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ test_bit(FLG_DCHAN_BUSY, &l2->flag)) {
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9);
+ } else if (l2->rc == l2->N200) {
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ test_and_clear_bit(FLG_T200_RUN, &l2->flag);
+ skb_queue_purge(&l2->i_queue);
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'G');
+ if (test_bit(FLG_LAPB, &l2->flag))
+ l2down_create(l2, PH_DEACTIVATE_REQ,
+ l2_newid(l2), 0, NULL);
+ st5_dl_release_l2l3(l2);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+ } else {
+ l2->rc++;
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9);
+ send_uframe(l2, NULL, (test_bit(FLG_MOD128, &l2->flag) ?
+ SABME : SABM) | 0x10, CMD);
+ }
+}
+
+static void
+l2_st6_tout_200(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ test_bit(FLG_DCHAN_BUSY, &l2->flag)) {
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9);
+ } else if (l2->rc == l2->N200) {
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ test_and_clear_bit(FLG_T200_RUN, &l2->flag);
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'H');
+ lapb_dl_release_l2l3(l2, DL_RELEASE_CNF);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+ } else {
+ l2->rc++;
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200,
+ NULL, 9);
+ send_uframe(l2, NULL, DISC | 0x10, CMD);
+ }
+}
+
+static void
+l2_st7_tout_200(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ test_bit(FLG_DCHAN_BUSY, &l2->flag)) {
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9);
+ return;
+ }
+ test_and_clear_bit(FLG_T200_RUN, &l2->flag);
+ l2->rc = 0;
+ mISDN_FsmChangeState(fi, ST_L2_8);
+ transmit_enquiry(l2);
+ l2->rc++;
+}
+
+static void
+l2_st8_tout_200(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ test_bit(FLG_DCHAN_BUSY, &l2->flag)) {
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9);
+ return;
+ }
+ test_and_clear_bit(FLG_T200_RUN, &l2->flag);
+ if (l2->rc == l2->N200) {
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'I');
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+ } else {
+ transmit_enquiry(l2);
+ l2->rc++;
+ }
+}
+
+static void
+l2_st7_tout_203(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ if (test_bit(FLG_LAPD, &l2->flag) &&
+ test_bit(FLG_DCHAN_BUSY, &l2->flag)) {
+ mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 9);
+ return;
+ }
+ mISDN_FsmChangeState(fi, ST_L2_8);
+ transmit_enquiry(l2);
+ l2->rc = 0;
+}
+
+static void
+l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb, *nskb, *oskb;
+ u_char header[MAX_L2HEADER_LEN];
+ u_int i, p1;
+
+ if (!cansend(l2))
+ return;
+
+ skb = skb_dequeue(&l2->i_queue);
+ if (!skb)
+ return;
+
+ if (test_bit(FLG_MOD128, &l2->flag))
+ p1 = (l2->vs - l2->va) % 128;
+ else
+ p1 = (l2->vs - l2->va) % 8;
+ p1 = (p1 + l2->sow) % l2->window;
+ if (l2->windowar[p1]) {
+ printk(KERN_WARNING "isdnl2 try overwrite ack queue entry %d\n",
+ p1);
+ dev_kfree_skb(l2->windowar[p1]);
+ }
+ l2->windowar[p1] = skb;
+ i = sethdraddr(l2, header, CMD);
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ header[i++] = l2->vs << 1;
+ header[i++] = l2->vr << 1;
+ l2->vs = (l2->vs + 1) % 128;
+ } else {
+ header[i++] = (l2->vr << 5) | (l2->vs << 1);
+ l2->vs = (l2->vs + 1) % 8;
+ }
+
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ p1 = skb_headroom(nskb);
+ if (p1 >= i)
+ memcpy(skb_push(nskb, i), header, i);
+ else {
+ printk(KERN_WARNING
+ "isdnl2 pull_iqueue skb header(%d/%d) too short\n", i, p1);
+ oskb = nskb;
+ nskb = mI_alloc_skb(oskb->len + i, GFP_ATOMIC);
+ if (!nskb) {
+ dev_kfree_skb(oskb);
+ printk(KERN_WARNING "%s: no skb mem\n", __func__);
+ return;
+ }
+ memcpy(skb_put(nskb, i), header, i);
+ memcpy(skb_put(nskb, oskb->len), oskb->data, oskb->len);
+ dev_kfree_skb(oskb);
+ }
+ l2down(l2, PH_DATA_REQ, l2_newid(l2), nskb);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ if (!test_and_set_bit(FLG_T200_RUN, &l2->flag)) {
+ mISDN_FsmDelTimer(&l2->t203, 13);
+ mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 11);
+ }
+}
+
+static void
+l2_st8_got_super(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+ int PollFlag, rsp, rnr = 0;
+ unsigned int nr;
+
+ rsp = *skb->data & 0x2;
+ if (test_bit(FLG_ORIG, &l2->flag))
+ rsp = !rsp;
+
+ skb_pull(skb, l2addrsize(l2));
+
+ if (IsRNR(skb->data, l2)) {
+ set_peer_busy(l2);
+ rnr = 1;
+ } else
+ clear_peer_busy(l2);
+
+ if (test_bit(FLG_MOD128, &l2->flag)) {
+ PollFlag = (skb->data[1] & 0x1) == 0x1;
+ nr = skb->data[1] >> 1;
+ } else {
+ PollFlag = (skb->data[0] & 0x10);
+ nr = (skb->data[0] >> 5) & 0x7;
+ }
+ dev_kfree_skb(skb);
+ if (rsp && PollFlag) {
+ if (legalnr(l2, nr)) {
+ if (rnr) {
+ restart_t200(l2, 15);
+ } else {
+ stop_t200(l2, 16);
+ mISDN_FsmAddTimer(&l2->t203, l2->T203,
+ EV_L2_T203, NULL, 5);
+ setva(l2, nr);
+ }
+ invoke_retransmission(l2, nr);
+ mISDN_FsmChangeState(fi, ST_L2_7);
+ if (skb_queue_len(&l2->i_queue) && cansend(l2))
+ mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
+ } else
+ nrerrorrecovery(fi);
+ } else {
+ if (!rsp && PollFlag)
+ enquiry_response(l2);
+ if (legalnr(l2, nr))
+ setva(l2, nr);
+ else
+ nrerrorrecovery(fi);
+ }
+}
+
+static void
+l2_got_FRMR(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_pull(skb, l2addrsize(l2) + 1);
+
+ if (!(skb->data[0] & 1) || ((skb->data[0] & 3) == 1) || /* I or S */
+ (IsUA(skb->data) && (fi->state == ST_L2_7))) {
+ l2mgr(l2, MDL_ERROR_IND, (void *) 'K');
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+ }
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_st24_tei_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->ui_queue);
+ l2->tei = GROUP_TEI;
+ mISDN_FsmChangeState(fi, ST_L2_1);
+}
+
+static void
+l2_st3_tei_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->ui_queue);
+ l2->tei = GROUP_TEI;
+ l2up_create(l2, DL_RELEASE_IND, 0, NULL);
+ mISDN_FsmChangeState(fi, ST_L2_1);
+}
+
+static void
+l2_st5_tei_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ freewin(l2);
+ l2->tei = GROUP_TEI;
+ stop_t200(l2, 17);
+ st5_dl_release_l2l3(l2);
+ mISDN_FsmChangeState(fi, ST_L2_1);
+}
+
+static void
+l2_st6_tei_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->ui_queue);
+ l2->tei = GROUP_TEI;
+ stop_t200(l2, 18);
+ l2up_create(l2, DL_RELEASE_IND, 0, NULL);
+ mISDN_FsmChangeState(fi, ST_L2_1);
+}
+
+static void
+l2_tei_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ freewin(l2);
+ l2->tei = GROUP_TEI;
+ stop_t200(l2, 17);
+ mISDN_FsmDelTimer(&l2->t203, 19);
+ l2up_create(l2, DL_RELEASE_IND, 0, NULL);
+/* mISDN_queue_data(&l2->inst, l2->inst.id | MSG_BROADCAST,
+ * MGR_SHORTSTATUS_IND, SSTATUS_L2_RELEASED,
+ * 0, NULL, 0);
+ */
+ mISDN_FsmChangeState(fi, ST_L2_1);
+}
+
+static void
+l2_st14_persistant_da(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ if (test_and_clear_bit(FLG_ESTAB_PEND, &l2->flag))
+ l2up(l2, DL_RELEASE_IND, skb);
+ else
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_st5_persistant_da(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ freewin(l2);
+ stop_t200(l2, 19);
+ st5_dl_release_l2l3(l2);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_st6_persistant_da(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_purge(&l2->ui_queue);
+ stop_t200(l2, 20);
+ l2up(l2, DL_RELEASE_CNF, skb);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+}
+
+static void
+l2_persistant_da(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ freewin(l2);
+ stop_t200(l2, 19);
+ mISDN_FsmDelTimer(&l2->t203, 19);
+ l2up(l2, DL_RELEASE_IND, skb);
+ mISDN_FsmChangeState(fi, ST_L2_4);
+ if (l2->tm)
+ l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
+}
+
+static void
+l2_set_own_busy(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (!test_and_set_bit(FLG_OWN_BUSY, &l2->flag)) {
+ enquiry_cr(l2, RNR, RSP, 0);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ }
+ if (skb)
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_clear_own_busy(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+ struct sk_buff *skb = arg;
+
+ if (!test_and_clear_bit(FLG_OWN_BUSY, &l2->flag)) {
+ enquiry_cr(l2, RR, RSP, 0);
+ test_and_clear_bit(FLG_ACK_PEND, &l2->flag);
+ }
+ if (skb)
+ dev_kfree_skb(skb);
+}
+
+static void
+l2_frame_error(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ l2mgr(l2, MDL_ERROR_IND, arg);
+}
+
+static void
+l2_frame_error_reest(struct FsmInst *fi, int event, void *arg)
+{
+ struct layer2 *l2 = fi->userdata;
+
+ l2mgr(l2, MDL_ERROR_IND, arg);
+ establishlink(fi);
+ test_and_clear_bit(FLG_L3_INIT, &l2->flag);
+}
+
+static struct FsmNode L2FnList[] =
+{
+ {ST_L2_1, EV_L2_DL_ESTABLISH_REQ, l2_mdl_assign},
+ {ST_L2_2, EV_L2_DL_ESTABLISH_REQ, l2_go_st3},
+ {ST_L2_4, EV_L2_DL_ESTABLISH_REQ, l2_establish},
+ {ST_L2_5, EV_L2_DL_ESTABLISH_REQ, l2_discard_i_setl3},
+ {ST_L2_7, EV_L2_DL_ESTABLISH_REQ, l2_l3_reestablish},
+ {ST_L2_8, EV_L2_DL_ESTABLISH_REQ, l2_l3_reestablish},
+ {ST_L2_4, EV_L2_DL_RELEASE_REQ, l2_release},
+ {ST_L2_5, EV_L2_DL_RELEASE_REQ, l2_pend_rel},
+ {ST_L2_7, EV_L2_DL_RELEASE_REQ, l2_disconnect},
+ {ST_L2_8, EV_L2_DL_RELEASE_REQ, l2_disconnect},
+ {ST_L2_5, EV_L2_DL_DATA, l2_feed_i_if_reest},
+ {ST_L2_7, EV_L2_DL_DATA, l2_feed_i_pull},
+ {ST_L2_8, EV_L2_DL_DATA, l2_feed_iqueue},
+ {ST_L2_1, EV_L2_DL_UNITDATA, l2_queue_ui_assign},
+ {ST_L2_2, EV_L2_DL_UNITDATA, l2_queue_ui},
+ {ST_L2_3, EV_L2_DL_UNITDATA, l2_queue_ui},
+ {ST_L2_4, EV_L2_DL_UNITDATA, l2_send_ui},
+ {ST_L2_5, EV_L2_DL_UNITDATA, l2_send_ui},
+ {ST_L2_6, EV_L2_DL_UNITDATA, l2_send_ui},
+ {ST_L2_7, EV_L2_DL_UNITDATA, l2_send_ui},
+ {ST_L2_8, EV_L2_DL_UNITDATA, l2_send_ui},
+ {ST_L2_1, EV_L2_MDL_ASSIGN, l2_got_tei},
+ {ST_L2_2, EV_L2_MDL_ASSIGN, l2_got_tei},
+ {ST_L2_3, EV_L2_MDL_ASSIGN, l2_got_tei},
+ {ST_L2_2, EV_L2_MDL_ERROR, l2_st24_tei_remove},
+ {ST_L2_3, EV_L2_MDL_ERROR, l2_st3_tei_remove},
+ {ST_L2_4, EV_L2_MDL_REMOVE, l2_st24_tei_remove},
+ {ST_L2_5, EV_L2_MDL_REMOVE, l2_st5_tei_remove},
+ {ST_L2_6, EV_L2_MDL_REMOVE, l2_st6_tei_remove},
+ {ST_L2_7, EV_L2_MDL_REMOVE, l2_tei_remove},
+ {ST_L2_8, EV_L2_MDL_REMOVE, l2_tei_remove},
+ {ST_L2_4, EV_L2_SABME, l2_start_multi},
+ {ST_L2_5, EV_L2_SABME, l2_send_UA},
+ {ST_L2_6, EV_L2_SABME, l2_send_DM},
+ {ST_L2_7, EV_L2_SABME, l2_restart_multi},
+ {ST_L2_8, EV_L2_SABME, l2_restart_multi},
+ {ST_L2_4, EV_L2_DISC, l2_send_DM},
+ {ST_L2_5, EV_L2_DISC, l2_send_DM},
+ {ST_L2_6, EV_L2_DISC, l2_send_UA},
+ {ST_L2_7, EV_L2_DISC, l2_stop_multi},
+ {ST_L2_8, EV_L2_DISC, l2_stop_multi},
+ {ST_L2_4, EV_L2_UA, l2_mdl_error_ua},
+ {ST_L2_5, EV_L2_UA, l2_connected},
+ {ST_L2_6, EV_L2_UA, l2_released},
+ {ST_L2_7, EV_L2_UA, l2_mdl_error_ua},
+ {ST_L2_8, EV_L2_UA, l2_mdl_error_ua},
+ {ST_L2_4, EV_L2_DM, l2_reestablish},
+ {ST_L2_5, EV_L2_DM, l2_st5_dm_release},
+ {ST_L2_6, EV_L2_DM, l2_st6_dm_release},
+ {ST_L2_7, EV_L2_DM, l2_mdl_error_dm},
+ {ST_L2_8, EV_L2_DM, l2_st8_mdl_error_dm},
+ {ST_L2_1, EV_L2_UI, l2_got_ui},
+ {ST_L2_2, EV_L2_UI, l2_got_ui},
+ {ST_L2_3, EV_L2_UI, l2_got_ui},
+ {ST_L2_4, EV_L2_UI, l2_got_ui},
+ {ST_L2_5, EV_L2_UI, l2_got_ui},
+ {ST_L2_6, EV_L2_UI, l2_got_ui},
+ {ST_L2_7, EV_L2_UI, l2_got_ui},
+ {ST_L2_8, EV_L2_UI, l2_got_ui},
+ {ST_L2_7, EV_L2_FRMR, l2_got_FRMR},
+ {ST_L2_8, EV_L2_FRMR, l2_got_FRMR},
+ {ST_L2_7, EV_L2_SUPER, l2_st7_got_super},
+ {ST_L2_8, EV_L2_SUPER, l2_st8_got_super},
+ {ST_L2_7, EV_L2_I, l2_got_iframe},
+ {ST_L2_8, EV_L2_I, l2_got_iframe},
+ {ST_L2_5, EV_L2_T200, l2_st5_tout_200},
+ {ST_L2_6, EV_L2_T200, l2_st6_tout_200},
+ {ST_L2_7, EV_L2_T200, l2_st7_tout_200},
+ {ST_L2_8, EV_L2_T200, l2_st8_tout_200},
+ {ST_L2_7, EV_L2_T203, l2_st7_tout_203},
+ {ST_L2_7, EV_L2_ACK_PULL, l2_pull_iqueue},
+ {ST_L2_7, EV_L2_SET_OWN_BUSY, l2_set_own_busy},
+ {ST_L2_8, EV_L2_SET_OWN_BUSY, l2_set_own_busy},
+ {ST_L2_7, EV_L2_CLEAR_OWN_BUSY, l2_clear_own_busy},
+ {ST_L2_8, EV_L2_CLEAR_OWN_BUSY, l2_clear_own_busy},
+ {ST_L2_4, EV_L2_FRAME_ERROR, l2_frame_error},
+ {ST_L2_5, EV_L2_FRAME_ERROR, l2_frame_error},
+ {ST_L2_6, EV_L2_FRAME_ERROR, l2_frame_error},
+ {ST_L2_7, EV_L2_FRAME_ERROR, l2_frame_error_reest},
+ {ST_L2_8, EV_L2_FRAME_ERROR, l2_frame_error_reest},
+ {ST_L2_1, EV_L1_DEACTIVATE, l2_st14_persistant_da},
+ {ST_L2_2, EV_L1_DEACTIVATE, l2_st24_tei_remove},
+ {ST_L2_3, EV_L1_DEACTIVATE, l2_st3_tei_remove},
+ {ST_L2_4, EV_L1_DEACTIVATE, l2_st14_persistant_da},
+ {ST_L2_5, EV_L1_DEACTIVATE, l2_st5_persistant_da},
+ {ST_L2_6, EV_L1_DEACTIVATE, l2_st6_persistant_da},
+ {ST_L2_7, EV_L1_DEACTIVATE, l2_persistant_da},
+ {ST_L2_8, EV_L1_DEACTIVATE, l2_persistant_da},
+};
+
+#define L2_FN_COUNT (sizeof(L2FnList)/sizeof(struct FsmNode))
+
+static int
+ph_data_indication(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb)
+{
+ u_char *datap = skb->data;
+ int ret = -EINVAL;
+ int psapi, ptei;
+ u_int l;
+ int c = 0;
+
+ l = l2addrsize(l2);
+ if (skb->len <= l) {
+ mISDN_FsmEvent(&l2->l2m, EV_L2_FRAME_ERROR, (void *) 'N');
+ return ret;
+ }
+ if (test_bit(FLG_LAPD, &l2->flag)) { /* Maybe not needed */
+ psapi = *datap++;
+ ptei = *datap++;
+ if ((psapi & 1) || !(ptei & 1)) {
+ printk(KERN_WARNING
+ "l2 D-channel frame wrong EA0/EA1\n");
+ return ret;
+ }
+ psapi >>= 2;
+ ptei >>= 1;
+ if (psapi != l2->sapi) {
+ /* not our bussiness
+ * printk(KERN_DEBUG "%s: sapi %d/%d sapi mismatch\n",
+ * __func__,
+ * psapi, l2->sapi);
+ */
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ if ((ptei != l2->tei) && (ptei != GROUP_TEI)) {
+ /* not our bussiness
+ * printk(KERN_DEBUG "%s: tei %d/%d sapi %d mismatch\n",
+ * __func__,
+ * ptei, l2->tei, psapi);
+ */
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ } else
+ datap += l;
+ if (!(*datap & 1)) { /* I-Frame */
+ c = iframe_error(l2, skb);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_I, skb);
+ } else if (IsSFrame(datap, l2)) { /* S-Frame */
+ c = super_error(l2, skb);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_SUPER, skb);
+ } else if (IsUI(datap)) {
+ c = UI_error(l2, skb);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_UI, skb);
+ } else if (IsSABME(datap, l2)) {
+ c = unnum_error(l2, skb, CMD);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_SABME, skb);
+ } else if (IsUA(datap)) {
+ c = unnum_error(l2, skb, RSP);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_UA, skb);
+ } else if (IsDISC(datap)) {
+ c = unnum_error(l2, skb, CMD);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DISC, skb);
+ } else if (IsDM(datap)) {
+ c = unnum_error(l2, skb, RSP);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DM, skb);
+ } else if (IsFRMR(datap)) {
+ c = FRMR_error(l2, skb);
+ if (!c)
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_FRMR, skb);
+ } else
+ c = 'L';
+ if (c) {
+ printk(KERN_WARNING "l2 D-channel frame error %c\n", c);
+ mISDN_FsmEvent(&l2->l2m, EV_L2_FRAME_ERROR, (void *)(long)c);
+ }
+ return ret;
+}
+
+static int
+l2_send(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct layer2 *l2 = container_of(ch, struct layer2, ch);
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int ret = -EINVAL;
+
+ if (*debug & DEBUG_L2_RECV)
+ printk(KERN_DEBUG "%s: prim(%x) id(%x) tei(%d)\n",
+ __func__, hh->prim, hh->id, l2->tei);
+ switch (hh->prim) {
+ case PH_DATA_IND:
+ ret = ph_data_indication(l2, hh, skb);
+ break;
+ case PH_DATA_CNF:
+ ret = ph_data_confirm(l2, hh, skb);
+ break;
+ case PH_ACTIVATE_IND:
+ test_and_set_bit(FLG_L1_ACTIV, &l2->flag);
+ l2up_create(l2, MPH_ACTIVATE_IND, 0, NULL);
+ if (test_and_clear_bit(FLG_ESTAB_PEND, &l2->flag))
+ ret = mISDN_FsmEvent(&l2->l2m,
+ EV_L2_DL_ESTABLISH_REQ, skb);
+ break;
+ case PH_DEACTIVATE_IND:
+ test_and_clear_bit(FLG_L1_ACTIV, &l2->flag);
+ l2up_create(l2, MPH_DEACTIVATE_IND, 0, NULL);
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L1_DEACTIVATE, skb);
+ break;
+ case MPH_INFORMATION_IND:
+ if (!l2->up)
+ break;
+ ret = l2->up->send(l2->up, skb);
+ break;
+ case DL_DATA_REQ:
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_DATA, skb);
+ break;
+ case DL_UNITDATA_REQ:
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_UNITDATA, skb);
+ break;
+ case DL_ESTABLISH_REQ:
+ if (test_bit(FLG_LAPB, &l2->flag))
+ test_and_set_bit(FLG_ORIG, &l2->flag);
+ if (test_bit(FLG_L1_ACTIV, &l2->flag)) {
+ if (test_bit(FLG_LAPD, &l2->flag) ||
+ test_bit(FLG_ORIG, &l2->flag))
+ ret = mISDN_FsmEvent(&l2->l2m,
+ EV_L2_DL_ESTABLISH_REQ, skb);
+ } else {
+ if (test_bit(FLG_LAPD, &l2->flag) ||
+ test_bit(FLG_ORIG, &l2->flag)) {
+ test_and_set_bit(FLG_ESTAB_PEND,
+ &l2->flag);
+ }
+ ret = l2down(l2, PH_ACTIVATE_REQ, l2_newid(l2),
+ skb);
+ }
+ break;
+ case DL_RELEASE_REQ:
+ if (test_bit(FLG_LAPB, &l2->flag))
+ l2down_create(l2, PH_DEACTIVATE_REQ,
+ l2_newid(l2), 0, NULL);
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_RELEASE_REQ,
+ skb);
+ break;
+ default:
+ if (*debug & DEBUG_L2)
+ l2m_debug(&l2->l2m, "l2 unknown pr %04x",
+ hh->prim);
+ }
+ if (ret) {
+ dev_kfree_skb(skb);
+ ret = 0;
+ }
+ return ret;
+}
+
+int
+tei_l2(struct layer2 *l2, u_int cmd, u_long arg)
+{
+ int ret = -EINVAL;
+
+ if (*debug & DEBUG_L2_TEI)
+ printk(KERN_DEBUG "%s: cmd(%x)\n", __func__, cmd);
+ switch (cmd) {
+ case (MDL_ASSIGN_REQ):
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ASSIGN, (void *)arg);
+ break;
+ case (MDL_REMOVE_REQ):
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_REMOVE, NULL);
+ break;
+ case (MDL_ERROR_IND):
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ERROR, NULL);
+ break;
+ case (MDL_ERROR_RSP):
+ /* ETS 300-125 5.3.2.1 Test: TC13010 */
+ printk(KERN_NOTICE "MDL_ERROR|REQ (tei_l2)\n");
+ ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ERROR, NULL);
+ break;
+ }
+ return ret;
+}
+
+static void
+release_l2(struct layer2 *l2)
+{
+ mISDN_FsmDelTimer(&l2->t200, 21);
+ mISDN_FsmDelTimer(&l2->t203, 16);
+ skb_queue_purge(&l2->i_queue);
+ skb_queue_purge(&l2->ui_queue);
+ skb_queue_purge(&l2->down_queue);
+ ReleaseWin(l2);
+ if (test_bit(FLG_LAPD, &l2->flag)) {
+ release_tei(l2);
+ if (l2->ch.st)
+ l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D,
+ CLOSE_CHANNEL, NULL);
+ }
+ kfree(l2);
+}
+
+static int
+l2_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct layer2 *l2 = container_of(ch, struct layer2, ch);
+ u_int info;
+
+ if (*debug & DEBUG_L2_CTRL)
+ printk(KERN_DEBUG "%s:(%x)\n", __func__, cmd);
+
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ if (test_bit(FLG_LAPD, &l2->flag)) {
+ set_channel_address(&l2->ch, l2->sapi, l2->tei);
+ info = DL_INFO_L2_CONNECT;
+ l2up_create(l2, DL_INFORMATION_IND,
+ sizeof(info), &info);
+ }
+ break;
+ case CLOSE_CHANNEL:
+ if (l2->ch.peer)
+ l2->ch.peer->ctrl(l2->ch.peer, CLOSE_CHANNEL, NULL);
+ release_l2(l2);
+ break;
+ }
+ return 0;
+}
+
+struct layer2 *
+create_l2(struct mISDNchannel *ch, u_int protocol, u_long options, u_long arg)
+{
+ struct layer2 *l2;
+ struct channel_req rq;
+
+ l2 = kzalloc(sizeof(struct layer2), GFP_KERNEL);
+ if (!l2) {
+ printk(KERN_ERR "kzalloc layer2 failed\n");
+ return NULL;
+ }
+ l2->next_id = 1;
+ l2->down_id = MISDN_ID_NONE;
+ l2->up = ch;
+ l2->ch.st = ch->st;
+ l2->ch.send = l2_send;
+ l2->ch.ctrl = l2_ctrl;
+ switch (protocol) {
+ case ISDN_P_LAPD_NT:
+ test_and_set_bit(FLG_LAPD, &l2->flag);
+ test_and_set_bit(FLG_LAPD_NET, &l2->flag);
+ test_and_set_bit(FLG_MOD128, &l2->flag);
+ l2->sapi = 0;
+ l2->maxlen = MAX_DFRAME_LEN;
+ if (test_bit(OPTION_L2_PMX, &options))
+ l2->window = 7;
+ else
+ l2->window = 1;
+ if (test_bit(OPTION_L2_PTP, &options))
+ test_and_set_bit(FLG_PTP, &l2->flag);
+ if (test_bit(OPTION_L2_FIXEDTEI, &options))
+ test_and_set_bit(FLG_FIXED_TEI, &l2->flag);
+ l2->tei = (u_int)arg;
+ l2->T200 = 1000;
+ l2->N200 = 3;
+ l2->T203 = 10000;
+ if (test_bit(OPTION_L2_PMX, &options))
+ rq.protocol = ISDN_P_NT_E1;
+ else
+ rq.protocol = ISDN_P_NT_S0;
+ rq.adr.channel = 0;
+ l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, OPEN_CHANNEL, &rq);
+ break;
+ case ISDN_P_LAPD_TE:
+ test_and_set_bit(FLG_LAPD, &l2->flag);
+ test_and_set_bit(FLG_MOD128, &l2->flag);
+ test_and_set_bit(FLG_ORIG, &l2->flag);
+ l2->sapi = 0;
+ l2->maxlen = MAX_DFRAME_LEN;
+ if (test_bit(OPTION_L2_PMX, &options))
+ l2->window = 7;
+ else
+ l2->window = 1;
+ if (test_bit(OPTION_L2_PTP, &options))
+ test_and_set_bit(FLG_PTP, &l2->flag);
+ if (test_bit(OPTION_L2_FIXEDTEI, &options))
+ test_and_set_bit(FLG_FIXED_TEI, &l2->flag);
+ l2->tei = (u_int)arg;
+ l2->T200 = 1000;
+ l2->N200 = 3;
+ l2->T203 = 10000;
+ if (test_bit(OPTION_L2_PMX, &options))
+ rq.protocol = ISDN_P_TE_E1;
+ else
+ rq.protocol = ISDN_P_TE_S0;
+ rq.adr.channel = 0;
+ l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, OPEN_CHANNEL, &rq);
+ break;
+ case ISDN_P_B_X75SLP:
+ test_and_set_bit(FLG_LAPB, &l2->flag);
+ l2->window = 7;
+ l2->maxlen = MAX_DATA_SIZE;
+ l2->T200 = 1000;
+ l2->N200 = 4;
+ l2->T203 = 5000;
+ l2->addr.A = 3;
+ l2->addr.B = 1;
+ break;
+ default:
+ printk(KERN_ERR "layer2 create failed prt %x\n",
+ protocol);
+ kfree(l2);
+ return NULL;
+ }
+ skb_queue_head_init(&l2->i_queue);
+ skb_queue_head_init(&l2->ui_queue);
+ skb_queue_head_init(&l2->down_queue);
+ skb_queue_head_init(&l2->tmp_queue);
+ InitWin(l2);
+ l2->l2m.fsm = &l2fsm;
+ if (test_bit(FLG_LAPB, &l2->flag) ||
+ test_bit(FLG_PTP, &l2->flag) ||
+ test_bit(FLG_LAPD_NET, &l2->flag))
+ l2->l2m.state = ST_L2_4;
+ else
+ l2->l2m.state = ST_L2_1;
+ l2->l2m.debug = *debug;
+ l2->l2m.userdata = l2;
+ l2->l2m.userint = 0;
+ l2->l2m.printdebug = l2m_debug;
+
+ mISDN_FsmInitTimer(&l2->l2m, &l2->t200);
+ mISDN_FsmInitTimer(&l2->l2m, &l2->t203);
+ return l2;
+}
+
+static int
+x75create(struct channel_req *crq)
+{
+ struct layer2 *l2;
+
+ if (crq->protocol != ISDN_P_B_X75SLP)
+ return -EPROTONOSUPPORT;
+ l2 = create_l2(crq->ch, crq->protocol, 0, 0);
+ if (!l2)
+ return -ENOMEM;
+ crq->ch = &l2->ch;
+ crq->protocol = ISDN_P_B_HDLC;
+ return 0;
+}
+
+static struct Bprotocol X75SLP = {
+ .Bprotocols = (1 << (ISDN_P_B_X75SLP & ISDN_P_B_MASK)),
+ .name = "X75SLP",
+ .create = x75create
+};
+
+int
+Isdnl2_Init(u_int *deb)
+{
+ debug = deb;
+ mISDN_register_Bprotocol(&X75SLP);
+ l2fsm.state_count = L2_STATE_COUNT;
+ l2fsm.event_count = L2_EVENT_COUNT;
+ l2fsm.strEvent = strL2Event;
+ l2fsm.strState = strL2State;
+ mISDN_FsmNew(&l2fsm, L2FnList, ARRAY_SIZE(L2FnList));
+ TEIInit(deb);
+ return 0;
+}
+
+void
+Isdnl2_cleanup(void)
+{
+ mISDN_unregister_Bprotocol(&X75SLP);
+ TEIFree();
+ mISDN_FsmFree(&l2fsm);
+}
+
--- /dev/null
+/*
+ * Layer 2 defines
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include <linux/skbuff.h>
+#include "fsm.h"
+
+#define MAX_WINDOW 8
+
+struct manager {
+ struct mISDNchannel ch;
+ struct mISDNchannel bcast;
+ u_long options;
+ struct list_head layer2;
+ rwlock_t lock;
+ struct FsmInst deact;
+ struct FsmTimer datimer;
+ struct sk_buff_head sendq;
+ struct mISDNchannel *up;
+ u_int nextid;
+ u_int lastid;
+};
+
+struct teimgr {
+ int ri;
+ int rcnt;
+ struct FsmInst tei_m;
+ struct FsmTimer timer;
+ int tval, nval;
+ struct layer2 *l2;
+ struct manager *mgr;
+};
+
+struct laddr {
+ u_char A;
+ u_char B;
+};
+
+struct layer2 {
+ struct list_head list;
+ struct mISDNchannel ch;
+ u_long flag;
+ int id;
+ struct mISDNchannel *up;
+ signed char sapi;
+ signed char tei;
+ struct laddr addr;
+ u_int maxlen;
+ struct teimgr *tm;
+ u_int vs, va, vr;
+ int rc;
+ u_int window;
+ u_int sow;
+ struct FsmInst l2m;
+ struct FsmTimer t200, t203;
+ int T200, N200, T203;
+ u_int next_id;
+ u_int down_id;
+ struct sk_buff *windowar[MAX_WINDOW];
+ struct sk_buff_head i_queue;
+ struct sk_buff_head ui_queue;
+ struct sk_buff_head down_queue;
+ struct sk_buff_head tmp_queue;
+};
+
+enum {
+ ST_L2_1,
+ ST_L2_2,
+ ST_L2_3,
+ ST_L2_4,
+ ST_L2_5,
+ ST_L2_6,
+ ST_L2_7,
+ ST_L2_8,
+};
+
+#define L2_STATE_COUNT (ST_L2_8+1)
+
+extern struct layer2 *create_l2(struct mISDNchannel *, u_int,
+ u_long, u_long);
+extern int tei_l2(struct layer2 *, u_int, u_long arg);
+
+
+/* from tei.c */
+extern int l2_tei(struct layer2 *, u_int, u_long arg);
+extern void release_tei(struct layer2 *);
+extern int TEIInit(u_int *);
+extern void TEIFree(void);
+
+#define MAX_L2HEADER_LEN 4
+
+#define RR 0x01
+#define RNR 0x05
+#define REJ 0x09
+#define SABME 0x6f
+#define SABM 0x2f
+#define DM 0x0f
+#define UI 0x03
+#define DISC 0x43
+#define UA 0x63
+#define FRMR 0x87
+#define XID 0xaf
+
+#define CMD 0
+#define RSP 1
+
+#define LC_FLUSH_WAIT 1
+
+#define FLG_LAPB 0
+#define FLG_LAPD 1
+#define FLG_ORIG 2
+#define FLG_MOD128 3
+#define FLG_PEND_REL 4
+#define FLG_L3_INIT 5
+#define FLG_T200_RUN 6
+#define FLG_ACK_PEND 7
+#define FLG_REJEXC 8
+#define FLG_OWN_BUSY 9
+#define FLG_PEER_BUSY 10
+#define FLG_DCHAN_BUSY 11
+#define FLG_L1_ACTIV 12
+#define FLG_ESTAB_PEND 13
+#define FLG_PTP 14
+#define FLG_FIXED_TEI 15
+#define FLG_L2BLOCK 16
+#define FLG_L1_NOTREADY 17
+#define FLG_LAPD_NET 18
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include "core.h"
+
+static int *debug;
+
+static struct proto mISDN_proto = {
+ .name = "misdn",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct mISDN_sock)
+};
+
+#define _pms(sk) ((struct mISDN_sock *)sk)
+
+static struct mISDN_sock_list data_sockets = {
+ .lock = __RW_LOCK_UNLOCKED(data_sockets.lock)
+};
+
+static struct mISDN_sock_list base_sockets = {
+ .lock = __RW_LOCK_UNLOCKED(base_sockets.lock)
+};
+
+#define L2_HEADER_LEN 4
+
+static inline struct sk_buff *
+_l2_alloc_skb(unsigned int len, gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+
+ skb = alloc_skb(len + L2_HEADER_LEN, gfp_mask);
+ if (likely(skb))
+ skb_reserve(skb, L2_HEADER_LEN);
+ return skb;
+}
+
+static void
+mISDN_sock_link(struct mISDN_sock_list *l, struct sock *sk)
+{
+ write_lock_bh(&l->lock);
+ sk_add_node(sk, &l->head);
+ write_unlock_bh(&l->lock);
+}
+
+static void mISDN_sock_unlink(struct mISDN_sock_list *l, struct sock *sk)
+{
+ write_lock_bh(&l->lock);
+ sk_del_node_init(sk);
+ write_unlock_bh(&l->lock);
+}
+
+static int
+mISDN_send(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct mISDN_sock *msk;
+ int err;
+
+ msk = container_of(ch, struct mISDN_sock, ch);
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s len %d %p\n", __func__, skb->len, skb);
+ if (msk->sk.sk_state == MISDN_CLOSED)
+ return -EUNATCH;
+ __net_timestamp(skb);
+ err = sock_queue_rcv_skb(&msk->sk, skb);
+ if (err)
+ printk(KERN_WARNING "%s: error %d\n", __func__, err);
+ return err;
+}
+
+static int
+mISDN_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct mISDN_sock *msk;
+
+ msk = container_of(ch, struct mISDN_sock, ch);
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s(%p, %x, %p)\n", __func__, ch, cmd, arg);
+ switch (cmd) {
+ case CLOSE_CHANNEL:
+ msk->sk.sk_state = MISDN_CLOSED;
+ break;
+ }
+ return 0;
+}
+
+static inline void
+mISDN_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
+{
+ struct timeval tv;
+
+ if (_pms(sk)->cmask & MISDN_TIME_STAMP) {
+ skb_get_timestamp(skb, &tv);
+ put_cmsg(msg, SOL_MISDN, MISDN_TIME_STAMP, sizeof(tv), &tv);
+ }
+}
+
+static int
+mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len, int flags)
+{
+ struct sk_buff *skb;
+ struct sock *sk = sock->sk;
+ struct sockaddr_mISDN *maddr;
+
+ int copied, err;
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s: len %d, flags %x ch.nr %d, proto %x\n",
+ __func__, (int)len, flags, _pms(sk)->ch.nr,
+ sk->sk_protocol);
+ if (flags & (MSG_OOB))
+ return -EOPNOTSUPP;
+
+ if (sk->sk_state == MISDN_CLOSED)
+ return 0;
+
+ skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return err;
+
+ if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) {
+ msg->msg_namelen = sizeof(struct sockaddr_mISDN);
+ maddr = (struct sockaddr_mISDN *)msg->msg_name;
+ maddr->family = AF_ISDN;
+ maddr->dev = _pms(sk)->dev->id;
+ if ((sk->sk_protocol == ISDN_P_LAPD_TE) ||
+ (sk->sk_protocol == ISDN_P_LAPD_NT)) {
+ maddr->channel = (mISDN_HEAD_ID(skb) >> 16) & 0xff;
+ maddr->tei = (mISDN_HEAD_ID(skb) >> 8) & 0xff;
+ maddr->sapi = mISDN_HEAD_ID(skb) & 0xff;
+ } else {
+ maddr->channel = _pms(sk)->ch.nr;
+ maddr->sapi = _pms(sk)->ch.addr & 0xFF;
+ maddr->tei = (_pms(sk)->ch.addr >> 8) & 0xFF;
+ }
+ } else {
+ if (msg->msg_namelen)
+ printk(KERN_WARNING "%s: too small namelen %d\n",
+ __func__, msg->msg_namelen);
+ msg->msg_namelen = 0;
+ }
+
+ copied = skb->len + MISDN_HEADER_LEN;
+ if (len < copied) {
+ if (flags & MSG_PEEK)
+ atomic_dec(&skb->users);
+ else
+ skb_queue_head(&sk->sk_receive_queue, skb);
+ return -ENOSPC;
+ }
+ memcpy(skb_push(skb, MISDN_HEADER_LEN), mISDN_HEAD_P(skb),
+ MISDN_HEADER_LEN);
+
+ err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+
+ mISDN_sock_cmsg(sk, msg, skb);
+
+ skb_free_datagram(sk, skb);
+
+ return err ? : copied;
+}
+
+static int
+mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len)
+{
+ struct sock *sk = sock->sk;
+ struct sk_buff *skb;
+ int err = -ENOMEM;
+ struct sockaddr_mISDN *maddr;
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s: len %d flags %x ch %d proto %x\n",
+ __func__, (int)len, msg->msg_flags, _pms(sk)->ch.nr,
+ sk->sk_protocol);
+
+ if (msg->msg_flags & MSG_OOB)
+ return -EOPNOTSUPP;
+
+ if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE))
+ return -EINVAL;
+
+ if (len < MISDN_HEADER_LEN)
+ return -EINVAL;
+
+ if (sk->sk_state != MISDN_BOUND)
+ return -EBADFD;
+
+ lock_sock(sk);
+
+ skb = _l2_alloc_skb(len, GFP_KERNEL);
+ if (!skb)
+ goto done;
+
+ if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) {
+ err = -EFAULT;
+ goto drop;
+ }
+
+ memcpy(mISDN_HEAD_P(skb), skb->data, MISDN_HEADER_LEN);
+ skb_pull(skb, MISDN_HEADER_LEN);
+
+ if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) {
+ /* if we have a address, we use it */
+ maddr = (struct sockaddr_mISDN *)msg->msg_name;
+ mISDN_HEAD_ID(skb) = maddr->channel;
+ } else { /* use default for L2 messages */
+ if ((sk->sk_protocol == ISDN_P_LAPD_TE) ||
+ (sk->sk_protocol == ISDN_P_LAPD_NT))
+ mISDN_HEAD_ID(skb) = _pms(sk)->ch.nr;
+ }
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s: ID:%x\n",
+ __func__, mISDN_HEAD_ID(skb));
+
+ err = -ENODEV;
+ if (!_pms(sk)->ch.peer ||
+ (err = _pms(sk)->ch.recv(_pms(sk)->ch.peer, skb)))
+ goto drop;
+
+ err = len;
+
+done:
+ release_sock(sk);
+ return err;
+
+drop:
+ kfree_skb(skb);
+ goto done;
+}
+
+static int
+data_sock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk);
+ if (!sk)
+ return 0;
+ switch (sk->sk_protocol) {
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_S0:
+ case ISDN_P_TE_E1:
+ case ISDN_P_NT_E1:
+ if (sk->sk_state == MISDN_BOUND)
+ delete_channel(&_pms(sk)->ch);
+ else
+ mISDN_sock_unlink(&data_sockets, sk);
+ break;
+ case ISDN_P_LAPD_TE:
+ case ISDN_P_LAPD_NT:
+ case ISDN_P_B_RAW:
+ case ISDN_P_B_HDLC:
+ case ISDN_P_B_X75SLP:
+ case ISDN_P_B_L2DTMF:
+ case ISDN_P_B_L2DSP:
+ case ISDN_P_B_L2DSPHDLC:
+ delete_channel(&_pms(sk)->ch);
+ mISDN_sock_unlink(&data_sockets, sk);
+ break;
+ }
+
+ lock_sock(sk);
+
+ sock_orphan(sk);
+ skb_queue_purge(&sk->sk_receive_queue);
+
+ release_sock(sk);
+ sock_put(sk);
+
+ return 0;
+}
+
+static int
+data_sock_ioctl_bound(struct sock *sk, unsigned int cmd, void __user *p)
+{
+ struct mISDN_ctrl_req cq;
+ int err = -EINVAL, val;
+ struct mISDNchannel *bchan, *next;
+
+ lock_sock(sk);
+ if (!_pms(sk)->dev) {
+ err = -ENODEV;
+ goto done;
+ }
+ switch (cmd) {
+ case IMCTRLREQ:
+ if (copy_from_user(&cq, p, sizeof(cq))) {
+ err = -EFAULT;
+ break;
+ }
+ if ((sk->sk_protocol & ~ISDN_P_B_MASK) == ISDN_P_B_START) {
+ list_for_each_entry_safe(bchan, next,
+ &_pms(sk)->dev->bchannels, list) {
+ if (bchan->nr == cq.channel) {
+ err = bchan->ctrl(bchan,
+ CONTROL_CHANNEL, &cq);
+ break;
+ }
+ }
+ } else
+ err = _pms(sk)->dev->D.ctrl(&_pms(sk)->dev->D,
+ CONTROL_CHANNEL, &cq);
+ if (err)
+ break;
+ if (copy_to_user(p, &cq, sizeof(cq)))
+ err = -EFAULT;
+ break;
+ case IMCLEAR_L2:
+ if (sk->sk_protocol != ISDN_P_LAPD_NT) {
+ err = -EINVAL;
+ break;
+ }
+ if (get_user(val, (int __user *)p)) {
+ err = -EFAULT;
+ break;
+ }
+ err = _pms(sk)->dev->teimgr->ctrl(_pms(sk)->dev->teimgr,
+ CONTROL_CHANNEL, &val);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+done:
+ release_sock(sk);
+ return err;
+}
+
+static int
+data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ int err = 0, id;
+ struct sock *sk = sock->sk;
+ struct mISDNdevice *dev;
+ struct mISDNversion ver;
+
+ switch (cmd) {
+ case IMGETVERSION:
+ ver.major = MISDN_MAJOR_VERSION;
+ ver.minor = MISDN_MINOR_VERSION;
+ ver.release = MISDN_RELEASE;
+ if (copy_to_user((void __user *)arg, &ver, sizeof(ver)))
+ err = -EFAULT;
+ break;
+ case IMGETCOUNT:
+ id = get_mdevice_count();
+ if (put_user(id, (int __user *)arg))
+ err = -EFAULT;
+ break;
+ case IMGETDEVINFO:
+ if (get_user(id, (int __user *)arg)) {
+ err = -EFAULT;
+ break;
+ }
+ dev = get_mdevice(id);
+ if (dev) {
+ struct mISDN_devinfo di;
+
+ di.id = dev->id;
+ di.Dprotocols = dev->Dprotocols;
+ di.Bprotocols = dev->Bprotocols | get_all_Bprotocols();
+ di.protocol = dev->D.protocol;
+ memcpy(di.channelmap, dev->channelmap,
+ MISDN_CHMAP_SIZE * 4);
+ di.nrbchan = dev->nrbchan;
+ strcpy(di.name, dev->name);
+ if (copy_to_user((void __user *)arg, &di, sizeof(di)))
+ err = -EFAULT;
+ } else
+ err = -ENODEV;
+ break;
+ default:
+ if (sk->sk_state == MISDN_BOUND)
+ err = data_sock_ioctl_bound(sk, cmd,
+ (void __user *)arg);
+ else
+ err = -ENOTCONN;
+ }
+ return err;
+}
+
+static int data_sock_setsockopt(struct socket *sock, int level, int optname,
+ char __user *optval, int len)
+{
+ struct sock *sk = sock->sk;
+ int err = 0, opt = 0;
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s(%p, %d, %x, %p, %d)\n", __func__, sock,
+ level, optname, optval, len);
+
+ lock_sock(sk);
+
+ switch (optname) {
+ case MISDN_TIME_STAMP:
+ if (get_user(opt, (int __user *)optval)) {
+ err = -EFAULT;
+ break;
+ }
+
+ if (opt)
+ _pms(sk)->cmask |= MISDN_TIME_STAMP;
+ else
+ _pms(sk)->cmask &= ~MISDN_TIME_STAMP;
+ break;
+ default:
+ err = -ENOPROTOOPT;
+ break;
+ }
+ release_sock(sk);
+ return err;
+}
+
+static int data_sock_getsockopt(struct socket *sock, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ struct sock *sk = sock->sk;
+ int len, opt;
+
+ if (get_user(len, optlen))
+ return -EFAULT;
+
+ switch (optname) {
+ case MISDN_TIME_STAMP:
+ if (_pms(sk)->cmask & MISDN_TIME_STAMP)
+ opt = 1;
+ else
+ opt = 0;
+
+ if (put_user(opt, optval))
+ return -EFAULT;
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+
+ return 0;
+}
+
+static int
+data_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+{
+ struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr;
+ struct sock *sk = sock->sk;
+ int err = 0;
+
+ if (*debug & DEBUG_SOCKET)
+ printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk);
+ if (addr_len != sizeof(struct sockaddr_mISDN))
+ return -EINVAL;
+ if (!maddr || maddr->family != AF_ISDN)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ if (_pms(sk)->dev) {
+ err = -EALREADY;
+ goto done;
+ }
+ _pms(sk)->dev = get_mdevice(maddr->dev);
+ if (!_pms(sk)->dev) {
+ err = -ENODEV;
+ goto done;
+ }
+ _pms(sk)->ch.send = mISDN_send;
+ _pms(sk)->ch.ctrl = mISDN_ctrl;
+
+ switch (sk->sk_protocol) {
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_S0:
+ case ISDN_P_TE_E1:
+ case ISDN_P_NT_E1:
+ mISDN_sock_unlink(&data_sockets, sk);
+ err = connect_layer1(_pms(sk)->dev, &_pms(sk)->ch,
+ sk->sk_protocol, maddr);
+ if (err)
+ mISDN_sock_link(&data_sockets, sk);
+ break;
+ case ISDN_P_LAPD_TE:
+ case ISDN_P_LAPD_NT:
+ err = create_l2entity(_pms(sk)->dev, &_pms(sk)->ch,
+ sk->sk_protocol, maddr);
+ break;
+ case ISDN_P_B_RAW:
+ case ISDN_P_B_HDLC:
+ case ISDN_P_B_X75SLP:
+ case ISDN_P_B_L2DTMF:
+ case ISDN_P_B_L2DSP:
+ case ISDN_P_B_L2DSPHDLC:
+ err = connect_Bstack(_pms(sk)->dev, &_pms(sk)->ch,
+ sk->sk_protocol, maddr);
+ break;
+ default:
+ err = -EPROTONOSUPPORT;
+ }
+ if (err)
+ goto done;
+ sk->sk_state = MISDN_BOUND;
+ _pms(sk)->ch.protocol = sk->sk_protocol;
+
+done:
+ release_sock(sk);
+ return err;
+}
+
+static int
+data_sock_getname(struct socket *sock, struct sockaddr *addr,
+ int *addr_len, int peer)
+{
+ struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr;
+ struct sock *sk = sock->sk;
+
+ if (!_pms(sk)->dev)
+ return -EBADFD;
+
+ lock_sock(sk);
+
+ *addr_len = sizeof(*maddr);
+ maddr->dev = _pms(sk)->dev->id;
+ maddr->channel = _pms(sk)->ch.nr;
+ maddr->sapi = _pms(sk)->ch.addr & 0xff;
+ maddr->tei = (_pms(sk)->ch.addr >> 8) & 0xff;
+ release_sock(sk);
+ return 0;
+}
+
+static const struct proto_ops data_sock_ops = {
+ .family = PF_ISDN,
+ .owner = THIS_MODULE,
+ .release = data_sock_release,
+ .ioctl = data_sock_ioctl,
+ .bind = data_sock_bind,
+ .getname = data_sock_getname,
+ .sendmsg = mISDN_sock_sendmsg,
+ .recvmsg = mISDN_sock_recvmsg,
+ .poll = datagram_poll,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = data_sock_setsockopt,
+ .getsockopt = data_sock_getsockopt,
+ .connect = sock_no_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .mmap = sock_no_mmap
+};
+
+static int
+data_sock_create(struct net *net, struct socket *sock, int protocol)
+{
+ struct sock *sk;
+
+ if (sock->type != SOCK_DGRAM)
+ return -ESOCKTNOSUPPORT;
+
+ sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+
+ sock->ops = &data_sock_ops;
+ sock->state = SS_UNCONNECTED;
+ sock_reset_flag(sk, SOCK_ZAPPED);
+
+ sk->sk_protocol = protocol;
+ sk->sk_state = MISDN_OPEN;
+ mISDN_sock_link(&data_sockets, sk);
+
+ return 0;
+}
+
+static int
+base_sock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk);
+ if (!sk)
+ return 0;
+
+ mISDN_sock_unlink(&base_sockets, sk);
+ sock_orphan(sk);
+ sock_put(sk);
+
+ return 0;
+}
+
+static int
+base_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+{
+ int err = 0, id;
+ struct mISDNdevice *dev;
+ struct mISDNversion ver;
+
+ switch (cmd) {
+ case IMGETVERSION:
+ ver.major = MISDN_MAJOR_VERSION;
+ ver.minor = MISDN_MINOR_VERSION;
+ ver.release = MISDN_RELEASE;
+ if (copy_to_user((void __user *)arg, &ver, sizeof(ver)))
+ err = -EFAULT;
+ break;
+ case IMGETCOUNT:
+ id = get_mdevice_count();
+ if (put_user(id, (int __user *)arg))
+ err = -EFAULT;
+ break;
+ case IMGETDEVINFO:
+ if (get_user(id, (int __user *)arg)) {
+ err = -EFAULT;
+ break;
+ }
+ dev = get_mdevice(id);
+ if (dev) {
+ struct mISDN_devinfo di;
+
+ di.id = dev->id;
+ di.Dprotocols = dev->Dprotocols;
+ di.Bprotocols = dev->Bprotocols | get_all_Bprotocols();
+ di.protocol = dev->D.protocol;
+ memcpy(di.channelmap, dev->channelmap,
+ MISDN_CHMAP_SIZE * 4);
+ di.nrbchan = dev->nrbchan;
+ strcpy(di.name, dev->name);
+ if (copy_to_user((void __user *)arg, &di, sizeof(di)))
+ err = -EFAULT;
+ } else
+ err = -ENODEV;
+ break;
+ default:
+ err = -EINVAL;
+ }
+ return err;
+}
+
+static int
+base_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
+{
+ struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr;
+ struct sock *sk = sock->sk;
+ int err = 0;
+
+ if (!maddr || maddr->family != AF_ISDN)
+ return -EINVAL;
+
+ lock_sock(sk);
+
+ if (_pms(sk)->dev) {
+ err = -EALREADY;
+ goto done;
+ }
+
+ _pms(sk)->dev = get_mdevice(maddr->dev);
+ if (!_pms(sk)->dev) {
+ err = -ENODEV;
+ goto done;
+ }
+ sk->sk_state = MISDN_BOUND;
+
+done:
+ release_sock(sk);
+ return err;
+}
+
+static const struct proto_ops base_sock_ops = {
+ .family = PF_ISDN,
+ .owner = THIS_MODULE,
+ .release = base_sock_release,
+ .ioctl = base_sock_ioctl,
+ .bind = base_sock_bind,
+ .getname = sock_no_getname,
+ .sendmsg = sock_no_sendmsg,
+ .recvmsg = sock_no_recvmsg,
+ .poll = sock_no_poll,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_no_setsockopt,
+ .getsockopt = sock_no_getsockopt,
+ .connect = sock_no_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .mmap = sock_no_mmap
+};
+
+
+static int
+base_sock_create(struct net *net, struct socket *sock, int protocol)
+{
+ struct sock *sk;
+
+ if (sock->type != SOCK_RAW)
+ return -ESOCKTNOSUPPORT;
+
+ sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+ sock->ops = &base_sock_ops;
+ sock->state = SS_UNCONNECTED;
+ sock_reset_flag(sk, SOCK_ZAPPED);
+ sk->sk_protocol = protocol;
+ sk->sk_state = MISDN_OPEN;
+ mISDN_sock_link(&base_sockets, sk);
+
+ return 0;
+}
+
+static int
+mISDN_sock_create(struct net *net, struct socket *sock, int proto)
+{
+ int err = -EPROTONOSUPPORT;
+
+ switch (proto) {
+ case ISDN_P_BASE:
+ err = base_sock_create(net, sock, proto);
+ break;
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_S0:
+ case ISDN_P_TE_E1:
+ case ISDN_P_NT_E1:
+ case ISDN_P_LAPD_TE:
+ case ISDN_P_LAPD_NT:
+ case ISDN_P_B_RAW:
+ case ISDN_P_B_HDLC:
+ case ISDN_P_B_X75SLP:
+ case ISDN_P_B_L2DTMF:
+ case ISDN_P_B_L2DSP:
+ case ISDN_P_B_L2DSPHDLC:
+ err = data_sock_create(net, sock, proto);
+ break;
+ default:
+ return err;
+ }
+
+ return err;
+}
+
+static struct
+net_proto_family mISDN_sock_family_ops = {
+ .owner = THIS_MODULE,
+ .family = PF_ISDN,
+ .create = mISDN_sock_create,
+};
+
+int
+misdn_sock_init(u_int *deb)
+{
+ int err;
+
+ debug = deb;
+ err = sock_register(&mISDN_sock_family_ops);
+ if (err)
+ printk(KERN_ERR "%s: error(%d)\n", __func__, err);
+ return err;
+}
+
+void
+misdn_sock_cleanup(void)
+{
+ sock_unregister(PF_ISDN);
+}
+
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/mISDNif.h>
+#include <linux/kthread.h>
+#include "core.h"
+
+static u_int *debug;
+
+static inline void
+_queue_message(struct mISDNstack *st, struct sk_buff *skb)
+{
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+
+ if (*debug & DEBUG_QUEUE_FUNC)
+ printk(KERN_DEBUG "%s prim(%x) id(%x) %p\n",
+ __func__, hh->prim, hh->id, skb);
+ skb_queue_tail(&st->msgq, skb);
+ if (likely(!test_bit(mISDN_STACK_STOPPED, &st->status))) {
+ test_and_set_bit(mISDN_STACK_WORK, &st->status);
+ wake_up_interruptible(&st->workq);
+ }
+}
+
+int
+mISDN_queue_message(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ _queue_message(ch->st, skb);
+ return 0;
+}
+
+static struct mISDNchannel *
+get_channel4id(struct mISDNstack *st, u_int id)
+{
+ struct mISDNchannel *ch;
+
+ mutex_lock(&st->lmutex);
+ list_for_each_entry(ch, &st->layer2, list) {
+ if (id == ch->nr)
+ goto unlock;
+ }
+ ch = NULL;
+unlock:
+ mutex_unlock(&st->lmutex);
+ return ch;
+}
+
+static void
+send_socklist(struct mISDN_sock_list *sl, struct sk_buff *skb)
+{
+ struct hlist_node *node;
+ struct sock *sk;
+ struct sk_buff *cskb = NULL;
+
+ read_lock(&sl->lock);
+ sk_for_each(sk, node, &sl->head) {
+ if (sk->sk_state != MISDN_BOUND)
+ continue;
+ if (!cskb)
+ cskb = skb_copy(skb, GFP_KERNEL);
+ if (!cskb) {
+ printk(KERN_WARNING "%s no skb\n", __func__);
+ break;
+ }
+ if (!sock_queue_rcv_skb(sk, cskb))
+ cskb = NULL;
+ }
+ read_unlock(&sl->lock);
+ if (cskb)
+ dev_kfree_skb(cskb);
+}
+
+static void
+send_layer2(struct mISDNstack *st, struct sk_buff *skb)
+{
+ struct sk_buff *cskb;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ struct mISDNchannel *ch;
+ int ret;
+
+ if (!st)
+ return;
+ mutex_lock(&st->lmutex);
+ if ((hh->id & MISDN_ID_ADDR_MASK) == MISDN_ID_ANY) { /* L2 for all */
+ list_for_each_entry(ch, &st->layer2, list) {
+ if (list_is_last(&ch->list, &st->layer2)) {
+ cskb = skb;
+ skb = NULL;
+ } else {
+ cskb = skb_copy(skb, GFP_KERNEL);
+ }
+ if (cskb) {
+ ret = ch->send(ch, cskb);
+ if (ret) {
+ if (*debug & DEBUG_SEND_ERR)
+ printk(KERN_DEBUG
+ "%s ch%d prim(%x) addr(%x)"
+ " err %d\n",
+ __func__, ch->nr,
+ hh->prim, ch->addr, ret);
+ dev_kfree_skb(cskb);
+ }
+ } else {
+ printk(KERN_WARNING "%s ch%d addr %x no mem\n",
+ __func__, ch->nr, ch->addr);
+ goto out;
+ }
+ }
+ } else {
+ list_for_each_entry(ch, &st->layer2, list) {
+ if ((hh->id & MISDN_ID_ADDR_MASK) == ch->addr) {
+ ret = ch->send(ch, skb);
+ if (!ret)
+ skb = NULL;
+ goto out;
+ }
+ }
+ ret = st->dev->teimgr->ctrl(st->dev->teimgr, CHECK_DATA, skb);
+ if (!ret)
+ skb = NULL;
+ else if (*debug & DEBUG_SEND_ERR)
+ printk(KERN_DEBUG
+ "%s ch%d mgr prim(%x) addr(%x) err %d\n",
+ __func__, ch->nr, hh->prim, ch->addr, ret);
+ }
+out:
+ mutex_unlock(&st->lmutex);
+ if (skb)
+ dev_kfree_skb(skb);
+}
+
+static inline int
+send_msg_to_layer(struct mISDNstack *st, struct sk_buff *skb)
+{
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ struct mISDNchannel *ch;
+ int lm;
+
+ lm = hh->prim & MISDN_LAYERMASK;
+ if (*debug & DEBUG_QUEUE_FUNC)
+ printk(KERN_DEBUG "%s prim(%x) id(%x) %p\n",
+ __func__, hh->prim, hh->id, skb);
+ if (lm == 0x1) {
+ if (!hlist_empty(&st->l1sock.head)) {
+ __net_timestamp(skb);
+ send_socklist(&st->l1sock, skb);
+ }
+ return st->layer1->send(st->layer1, skb);
+ } else if (lm == 0x2) {
+ if (!hlist_empty(&st->l1sock.head))
+ send_socklist(&st->l1sock, skb);
+ send_layer2(st, skb);
+ return 0;
+ } else if (lm == 0x4) {
+ ch = get_channel4id(st, hh->id);
+ if (ch)
+ return ch->send(ch, skb);
+ else
+ printk(KERN_WARNING
+ "%s: dev(%s) prim(%x) id(%x) no channel\n",
+ __func__, st->dev->name, hh->prim, hh->id);
+ } else if (lm == 0x8) {
+ WARN_ON(lm == 0x8);
+ ch = get_channel4id(st, hh->id);
+ if (ch)
+ return ch->send(ch, skb);
+ else
+ printk(KERN_WARNING
+ "%s: dev(%s) prim(%x) id(%x) no channel\n",
+ __func__, st->dev->name, hh->prim, hh->id);
+ } else {
+ /* broadcast not handled yet */
+ printk(KERN_WARNING "%s: dev(%s) prim %x not delivered\n",
+ __func__, st->dev->name, hh->prim);
+ }
+ return -ESRCH;
+}
+
+static void
+do_clear_stack(struct mISDNstack *st)
+{
+}
+
+static int
+mISDNStackd(void *data)
+{
+ struct mISDNstack *st = data;
+ int err = 0;
+
+#ifdef CONFIG_SMP
+ lock_kernel();
+#endif
+ sigfillset(¤t->blocked);
+#ifdef CONFIG_SMP
+ unlock_kernel();
+#endif
+ if (*debug & DEBUG_MSG_THREAD)
+ printk(KERN_DEBUG "mISDNStackd %s started\n", st->dev->name);
+
+ if (st->notify != NULL) {
+ complete(st->notify);
+ st->notify = NULL;
+ }
+
+ for (;;) {
+ struct sk_buff *skb;
+
+ if (unlikely(test_bit(mISDN_STACK_STOPPED, &st->status))) {
+ test_and_clear_bit(mISDN_STACK_WORK, &st->status);
+ test_and_clear_bit(mISDN_STACK_RUNNING, &st->status);
+ } else
+ test_and_set_bit(mISDN_STACK_RUNNING, &st->status);
+ while (test_bit(mISDN_STACK_WORK, &st->status)) {
+ skb = skb_dequeue(&st->msgq);
+ if (!skb) {
+ test_and_clear_bit(mISDN_STACK_WORK,
+ &st->status);
+ /* test if a race happens */
+ skb = skb_dequeue(&st->msgq);
+ if (!skb)
+ continue;
+ test_and_set_bit(mISDN_STACK_WORK,
+ &st->status);
+ }
+#ifdef MISDN_MSG_STATS
+ st->msg_cnt++;
+#endif
+ err = send_msg_to_layer(st, skb);
+ if (unlikely(err)) {
+ if (*debug & DEBUG_SEND_ERR)
+ printk(KERN_DEBUG
+ "%s: %s prim(%x) id(%x) "
+ "send call(%d)\n",
+ __func__, st->dev->name,
+ mISDN_HEAD_PRIM(skb),
+ mISDN_HEAD_ID(skb), err);
+ dev_kfree_skb(skb);
+ continue;
+ }
+ if (unlikely(test_bit(mISDN_STACK_STOPPED,
+ &st->status))) {
+ test_and_clear_bit(mISDN_STACK_WORK,
+ &st->status);
+ test_and_clear_bit(mISDN_STACK_RUNNING,
+ &st->status);
+ break;
+ }
+ }
+ if (test_bit(mISDN_STACK_CLEARING, &st->status)) {
+ test_and_set_bit(mISDN_STACK_STOPPED, &st->status);
+ test_and_clear_bit(mISDN_STACK_RUNNING, &st->status);
+ do_clear_stack(st);
+ test_and_clear_bit(mISDN_STACK_CLEARING, &st->status);
+ test_and_set_bit(mISDN_STACK_RESTART, &st->status);
+ }
+ if (test_and_clear_bit(mISDN_STACK_RESTART, &st->status)) {
+ test_and_clear_bit(mISDN_STACK_STOPPED, &st->status);
+ test_and_set_bit(mISDN_STACK_RUNNING, &st->status);
+ if (!skb_queue_empty(&st->msgq))
+ test_and_set_bit(mISDN_STACK_WORK,
+ &st->status);
+ }
+ if (test_bit(mISDN_STACK_ABORT, &st->status))
+ break;
+ if (st->notify != NULL) {
+ complete(st->notify);
+ st->notify = NULL;
+ }
+#ifdef MISDN_MSG_STATS
+ st->sleep_cnt++;
+#endif
+ test_and_clear_bit(mISDN_STACK_ACTIVE, &st->status);
+ wait_event_interruptible(st->workq, (st->status &
+ mISDN_STACK_ACTION_MASK));
+ if (*debug & DEBUG_MSG_THREAD)
+ printk(KERN_DEBUG "%s: %s wake status %08lx\n",
+ __func__, st->dev->name, st->status);
+ test_and_set_bit(mISDN_STACK_ACTIVE, &st->status);
+
+ test_and_clear_bit(mISDN_STACK_WAKEUP, &st->status);
+
+ if (test_bit(mISDN_STACK_STOPPED, &st->status)) {
+ test_and_clear_bit(mISDN_STACK_RUNNING, &st->status);
+#ifdef MISDN_MSG_STATS
+ st->stopped_cnt++;
+#endif
+ }
+ }
+#ifdef MISDN_MSG_STATS
+ printk(KERN_DEBUG "mISDNStackd daemon for %s proceed %d "
+ "msg %d sleep %d stopped\n",
+ st->dev->name, st->msg_cnt, st->sleep_cnt, st->stopped_cnt);
+ printk(KERN_DEBUG
+ "mISDNStackd daemon for %s utime(%ld) stime(%ld)\n",
+ st->dev->name, st->thread->utime, st->thread->stime);
+ printk(KERN_DEBUG
+ "mISDNStackd daemon for %s nvcsw(%ld) nivcsw(%ld)\n",
+ st->dev->name, st->thread->nvcsw, st->thread->nivcsw);
+ printk(KERN_DEBUG "mISDNStackd daemon for %s killed now\n",
+ st->dev->name);
+#endif
+ test_and_set_bit(mISDN_STACK_KILLED, &st->status);
+ test_and_clear_bit(mISDN_STACK_RUNNING, &st->status);
+ test_and_clear_bit(mISDN_STACK_ACTIVE, &st->status);
+ test_and_clear_bit(mISDN_STACK_ABORT, &st->status);
+ skb_queue_purge(&st->msgq);
+ st->thread = NULL;
+ if (st->notify != NULL) {
+ complete(st->notify);
+ st->notify = NULL;
+ }
+ return 0;
+}
+
+static int
+l1_receive(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ if (!ch->st)
+ return -ENODEV;
+ __net_timestamp(skb);
+ _queue_message(ch->st, skb);
+ return 0;
+}
+
+void
+set_channel_address(struct mISDNchannel *ch, u_int sapi, u_int tei)
+{
+ ch->addr = sapi | (tei << 8);
+}
+
+void
+__add_layer2(struct mISDNchannel *ch, struct mISDNstack *st)
+{
+ list_add_tail(&ch->list, &st->layer2);
+}
+
+void
+add_layer2(struct mISDNchannel *ch, struct mISDNstack *st)
+{
+ mutex_lock(&st->lmutex);
+ __add_layer2(ch, st);
+ mutex_unlock(&st->lmutex);
+}
+
+static int
+st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ if (!ch->st || ch->st->layer1)
+ return -EINVAL;
+ return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg);
+}
+
+int
+create_stack(struct mISDNdevice *dev)
+{
+ struct mISDNstack *newst;
+ int err;
+ DECLARE_COMPLETION_ONSTACK(done);
+
+ newst = kzalloc(sizeof(struct mISDNstack), GFP_KERNEL);
+ if (!newst) {
+ printk(KERN_ERR "kmalloc mISDN_stack failed\n");
+ return -ENOMEM;
+ }
+ newst->dev = dev;
+ INIT_LIST_HEAD(&newst->layer2);
+ INIT_HLIST_HEAD(&newst->l1sock.head);
+ rwlock_init(&newst->l1sock.lock);
+ init_waitqueue_head(&newst->workq);
+ skb_queue_head_init(&newst->msgq);
+ mutex_init(&newst->lmutex);
+ dev->D.st = newst;
+ err = create_teimanager(dev);
+ if (err) {
+ printk(KERN_ERR "kmalloc teimanager failed\n");
+ kfree(newst);
+ return err;
+ }
+ dev->teimgr->peer = &newst->own;
+ dev->teimgr->recv = mISDN_queue_message;
+ dev->teimgr->st = newst;
+ newst->layer1 = &dev->D;
+ dev->D.recv = l1_receive;
+ dev->D.peer = &newst->own;
+ newst->own.st = newst;
+ newst->own.ctrl = st_own_ctrl;
+ newst->own.send = mISDN_queue_message;
+ newst->own.recv = mISDN_queue_message;
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: st(%s)\n", __func__, newst->dev->name);
+ newst->notify = &done;
+ newst->thread = kthread_run(mISDNStackd, (void *)newst, "mISDN_%s",
+ newst->dev->name);
+ if (IS_ERR(newst->thread)) {
+ err = PTR_ERR(newst->thread);
+ printk(KERN_ERR
+ "mISDN:cannot create kernel thread for %s (%d)\n",
+ newst->dev->name, err);
+ delete_teimanager(dev->teimgr);
+ kfree(newst);
+ } else
+ wait_for_completion(&done);
+ return err;
+}
+
+int
+connect_layer1(struct mISDNdevice *dev, struct mISDNchannel *ch,
+ u_int protocol, struct sockaddr_mISDN *adr)
+{
+ struct mISDN_sock *msk = container_of(ch, struct mISDN_sock, ch);
+ struct channel_req rq;
+ int err;
+
+
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n",
+ __func__, dev->name, protocol, adr->dev, adr->channel,
+ adr->sapi, adr->tei);
+ switch (protocol) {
+ case ISDN_P_NT_S0:
+ case ISDN_P_NT_E1:
+ case ISDN_P_TE_S0:
+ case ISDN_P_TE_E1:
+#ifdef PROTOCOL_CHECK
+ /* this should be enhanced */
+ if (!list_empty(&dev->D.st->layer2)
+ && dev->D.protocol != protocol)
+ return -EBUSY;
+ if (!hlist_empty(&dev->D.st->l1sock.head)
+ && dev->D.protocol != protocol)
+ return -EBUSY;
+#endif
+ ch->recv = mISDN_queue_message;
+ ch->peer = &dev->D.st->own;
+ ch->st = dev->D.st;
+ rq.protocol = protocol;
+ rq.adr.channel = 0;
+ err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq);
+ printk(KERN_DEBUG "%s: ret 1 %d\n", __func__, err);
+ if (err)
+ return err;
+ write_lock_bh(&dev->D.st->l1sock.lock);
+ sk_add_node(&msk->sk, &dev->D.st->l1sock.head);
+ write_unlock_bh(&dev->D.st->l1sock.lock);
+ break;
+ default:
+ return -ENOPROTOOPT;
+ }
+ return 0;
+}
+
+int
+connect_Bstack(struct mISDNdevice *dev, struct mISDNchannel *ch,
+ u_int protocol, struct sockaddr_mISDN *adr)
+{
+ struct channel_req rq, rq2;
+ int pmask, err;
+ struct Bprotocol *bp;
+
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n",
+ __func__, dev->name, protocol,
+ adr->dev, adr->channel, adr->sapi,
+ adr->tei);
+ ch->st = dev->D.st;
+ pmask = 1 << (protocol & ISDN_P_B_MASK);
+ if (pmask & dev->Bprotocols) {
+ rq.protocol = protocol;
+ rq.adr = *adr;
+ err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq);
+ if (err)
+ return err;
+ ch->recv = rq.ch->send;
+ ch->peer = rq.ch;
+ rq.ch->recv = ch->send;
+ rq.ch->peer = ch;
+ rq.ch->st = dev->D.st;
+ } else {
+ bp = get_Bprotocol4mask(pmask);
+ if (!bp)
+ return -ENOPROTOOPT;
+ rq2.protocol = protocol;
+ rq2.adr = *adr;
+ rq2.ch = ch;
+ err = bp->create(&rq2);
+ if (err)
+ return err;
+ ch->recv = rq2.ch->send;
+ ch->peer = rq2.ch;
+ rq2.ch->st = dev->D.st;
+ rq.protocol = rq2.protocol;
+ rq.adr = *adr;
+ err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq);
+ if (err) {
+ rq2.ch->ctrl(rq2.ch, CLOSE_CHANNEL, NULL);
+ return err;
+ }
+ rq2.ch->recv = rq.ch->send;
+ rq2.ch->peer = rq.ch;
+ rq.ch->recv = rq2.ch->send;
+ rq.ch->peer = rq2.ch;
+ rq.ch->st = dev->D.st;
+ }
+ ch->protocol = protocol;
+ ch->nr = rq.ch->nr;
+ return 0;
+}
+
+int
+create_l2entity(struct mISDNdevice *dev, struct mISDNchannel *ch,
+ u_int protocol, struct sockaddr_mISDN *adr)
+{
+ struct channel_req rq;
+ int err;
+
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n",
+ __func__, dev->name, protocol,
+ adr->dev, adr->channel, adr->sapi,
+ adr->tei);
+ rq.protocol = ISDN_P_TE_S0;
+ if (dev->Dprotocols & (1 << ISDN_P_TE_E1))
+ rq.protocol = ISDN_P_TE_E1;
+ switch (protocol) {
+ case ISDN_P_LAPD_NT:
+ rq.protocol = ISDN_P_NT_S0;
+ if (dev->Dprotocols & (1 << ISDN_P_NT_E1))
+ rq.protocol = ISDN_P_NT_E1;
+ case ISDN_P_LAPD_TE:
+#ifdef PROTOCOL_CHECK
+ /* this should be enhanced */
+ if (!list_empty(&dev->D.st->layer2)
+ && dev->D.protocol != protocol)
+ return -EBUSY;
+ if (!hlist_empty(&dev->D.st->l1sock.head)
+ && dev->D.protocol != protocol)
+ return -EBUSY;
+#endif
+ ch->recv = mISDN_queue_message;
+ ch->peer = &dev->D.st->own;
+ ch->st = dev->D.st;
+ rq.adr.channel = 0;
+ err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq);
+ printk(KERN_DEBUG "%s: ret 1 %d\n", __func__, err);
+ if (err)
+ break;
+ rq.protocol = protocol;
+ rq.adr = *adr;
+ rq.ch = ch;
+ err = dev->teimgr->ctrl(dev->teimgr, OPEN_CHANNEL, &rq);
+ printk(KERN_DEBUG "%s: ret 2 %d\n", __func__, err);
+ if (!err) {
+ if ((protocol == ISDN_P_LAPD_NT) && !rq.ch)
+ break;
+ add_layer2(rq.ch, dev->D.st);
+ rq.ch->recv = mISDN_queue_message;
+ rq.ch->peer = &dev->D.st->own;
+ rq.ch->ctrl(rq.ch, OPEN_CHANNEL, NULL); /* can't fail */
+ }
+ break;
+ default:
+ err = -EPROTONOSUPPORT;
+ }
+ return err;
+}
+
+void
+delete_channel(struct mISDNchannel *ch)
+{
+ struct mISDN_sock *msk = container_of(ch, struct mISDN_sock, ch);
+ struct mISDNchannel *pch;
+
+ if (!ch->st) {
+ printk(KERN_WARNING "%s: no stack\n", __func__);
+ return;
+ }
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: st(%s) protocol(%x)\n", __func__,
+ ch->st->dev->name, ch->protocol);
+ if (ch->protocol >= ISDN_P_B_START) {
+ if (ch->peer) {
+ ch->peer->ctrl(ch->peer, CLOSE_CHANNEL, NULL);
+ ch->peer = NULL;
+ }
+ return;
+ }
+ switch (ch->protocol) {
+ case ISDN_P_NT_S0:
+ case ISDN_P_TE_S0:
+ case ISDN_P_NT_E1:
+ case ISDN_P_TE_E1:
+ write_lock_bh(&ch->st->l1sock.lock);
+ sk_del_node_init(&msk->sk);
+ write_unlock_bh(&ch->st->l1sock.lock);
+ ch->st->dev->D.ctrl(&ch->st->dev->D, CLOSE_CHANNEL, NULL);
+ break;
+ case ISDN_P_LAPD_TE:
+ pch = get_channel4id(ch->st, ch->nr);
+ if (pch) {
+ mutex_lock(&ch->st->lmutex);
+ list_del(&pch->list);
+ mutex_unlock(&ch->st->lmutex);
+ pch->ctrl(pch, CLOSE_CHANNEL, NULL);
+ pch = ch->st->dev->teimgr;
+ pch->ctrl(pch, CLOSE_CHANNEL, NULL);
+ } else
+ printk(KERN_WARNING "%s: no l2 channel\n",
+ __func__);
+ break;
+ case ISDN_P_LAPD_NT:
+ pch = ch->st->dev->teimgr;
+ if (pch) {
+ pch->ctrl(pch, CLOSE_CHANNEL, NULL);
+ } else
+ printk(KERN_WARNING "%s: no l2 channel\n",
+ __func__);
+ break;
+ default:
+ break;
+ }
+ return;
+}
+
+void
+delete_stack(struct mISDNdevice *dev)
+{
+ struct mISDNstack *st = dev->D.st;
+ DECLARE_COMPLETION_ONSTACK(done);
+
+ if (*debug & DEBUG_CORE_FUNC)
+ printk(KERN_DEBUG "%s: st(%s)\n", __func__,
+ st->dev->name);
+ if (dev->teimgr)
+ delete_teimanager(dev->teimgr);
+ if (st->thread) {
+ if (st->notify) {
+ printk(KERN_WARNING "%s: notifier in use\n",
+ __func__);
+ complete(st->notify);
+ }
+ st->notify = &done;
+ test_and_set_bit(mISDN_STACK_ABORT, &st->status);
+ test_and_set_bit(mISDN_STACK_WAKEUP, &st->status);
+ wake_up_interruptible(&st->workq);
+ wait_for_completion(&done);
+ }
+ if (!list_empty(&st->layer2))
+ printk(KERN_WARNING "%s: layer2 list not empty\n",
+ __func__);
+ if (!hlist_empty(&st->l1sock.head))
+ printk(KERN_WARNING "%s: layer1 list not empty\n",
+ __func__);
+ kfree(st);
+}
+
+void
+mISDN_initstack(u_int *dp)
+{
+ debug = dp;
+}
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#include "layer2.h"
+#include <linux/random.h>
+#include "core.h"
+
+#define ID_REQUEST 1
+#define ID_ASSIGNED 2
+#define ID_DENIED 3
+#define ID_CHK_REQ 4
+#define ID_CHK_RES 5
+#define ID_REMOVE 6
+#define ID_VERIFY 7
+
+#define TEI_ENTITY_ID 0xf
+
+#define MGR_PH_ACTIVE 16
+#define MGR_PH_NOTREADY 17
+
+#define DATIMER_VAL 10000
+
+static u_int *debug;
+
+static struct Fsm deactfsm = {NULL, 0, 0, NULL, NULL};
+static struct Fsm teifsmu = {NULL, 0, 0, NULL, NULL};
+static struct Fsm teifsmn = {NULL, 0, 0, NULL, NULL};
+
+enum {
+ ST_L1_DEACT,
+ ST_L1_DEACT_PENDING,
+ ST_L1_ACTIV,
+};
+#define DEACT_STATE_COUNT (ST_L1_ACTIV+1)
+
+static char *strDeactState[] =
+{
+ "ST_L1_DEACT",
+ "ST_L1_DEACT_PENDING",
+ "ST_L1_ACTIV",
+};
+
+enum {
+ EV_ACTIVATE,
+ EV_ACTIVATE_IND,
+ EV_DEACTIVATE,
+ EV_DEACTIVATE_IND,
+ EV_UI,
+ EV_DATIMER,
+};
+
+#define DEACT_EVENT_COUNT (EV_DATIMER+1)
+
+static char *strDeactEvent[] =
+{
+ "EV_ACTIVATE",
+ "EV_ACTIVATE_IND",
+ "EV_DEACTIVATE",
+ "EV_DEACTIVATE_IND",
+ "EV_UI",
+ "EV_DATIMER",
+};
+
+static void
+da_debug(struct FsmInst *fi, char *fmt, ...)
+{
+ struct manager *mgr = fi->userdata;
+ va_list va;
+
+ if (!(*debug & DEBUG_L2_TEIFSM))
+ return;
+ va_start(va, fmt);
+ printk(KERN_DEBUG "mgr(%d): ", mgr->ch.st->dev->id);
+ vprintk(fmt, va);
+ printk("\n");
+ va_end(va);
+}
+
+static void
+da_activate(struct FsmInst *fi, int event, void *arg)
+{
+ struct manager *mgr = fi->userdata;
+
+ if (fi->state == ST_L1_DEACT_PENDING)
+ mISDN_FsmDelTimer(&mgr->datimer, 1);
+ mISDN_FsmChangeState(fi, ST_L1_ACTIV);
+}
+
+static void
+da_deactivate_ind(struct FsmInst *fi, int event, void *arg)
+{
+ mISDN_FsmChangeState(fi, ST_L1_DEACT);
+}
+
+static void
+da_deactivate(struct FsmInst *fi, int event, void *arg)
+{
+ struct manager *mgr = fi->userdata;
+ struct layer2 *l2;
+ u_long flags;
+
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if (l2->l2m.state > ST_L2_4) {
+ /* have still activ TEI */
+ read_unlock_irqrestore(&mgr->lock, flags);
+ return;
+ }
+ }
+ read_unlock_irqrestore(&mgr->lock, flags);
+ /* All TEI are inactiv */
+ mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 1);
+ mISDN_FsmChangeState(fi, ST_L1_DEACT_PENDING);
+}
+
+static void
+da_ui(struct FsmInst *fi, int event, void *arg)
+{
+ struct manager *mgr = fi->userdata;
+
+ /* restart da timer */
+ mISDN_FsmDelTimer(&mgr->datimer, 2);
+ mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 2);
+
+}
+
+static void
+da_timer(struct FsmInst *fi, int event, void *arg)
+{
+ struct manager *mgr = fi->userdata;
+ struct layer2 *l2;
+ u_long flags;
+
+ /* check again */
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if (l2->l2m.state > ST_L2_4) {
+ /* have still activ TEI */
+ read_unlock_irqrestore(&mgr->lock, flags);
+ mISDN_FsmChangeState(fi, ST_L1_ACTIV);
+ return;
+ }
+ }
+ read_unlock_irqrestore(&mgr->lock, flags);
+ /* All TEI are inactiv */
+ mISDN_FsmChangeState(fi, ST_L1_DEACT);
+ _queue_data(&mgr->ch, PH_DEACTIVATE_REQ, MISDN_ID_ANY, 0, NULL,
+ GFP_ATOMIC);
+}
+
+static struct FsmNode DeactFnList[] =
+{
+ {ST_L1_DEACT, EV_ACTIVATE_IND, da_activate},
+ {ST_L1_ACTIV, EV_DEACTIVATE_IND, da_deactivate_ind},
+ {ST_L1_ACTIV, EV_DEACTIVATE, da_deactivate},
+ {ST_L1_DEACT_PENDING, EV_ACTIVATE, da_activate},
+ {ST_L1_DEACT_PENDING, EV_UI, da_ui},
+ {ST_L1_DEACT_PENDING, EV_DATIMER, da_timer},
+};
+
+enum {
+ ST_TEI_NOP,
+ ST_TEI_IDREQ,
+ ST_TEI_IDVERIFY,
+};
+
+#define TEI_STATE_COUNT (ST_TEI_IDVERIFY+1)
+
+static char *strTeiState[] =
+{
+ "ST_TEI_NOP",
+ "ST_TEI_IDREQ",
+ "ST_TEI_IDVERIFY",
+};
+
+enum {
+ EV_IDREQ,
+ EV_ASSIGN,
+ EV_ASSIGN_REQ,
+ EV_DENIED,
+ EV_CHKREQ,
+ EV_CHKRESP,
+ EV_REMOVE,
+ EV_VERIFY,
+ EV_TIMER,
+};
+
+#define TEI_EVENT_COUNT (EV_TIMER+1)
+
+static char *strTeiEvent[] =
+{
+ "EV_IDREQ",
+ "EV_ASSIGN",
+ "EV_ASSIGN_REQ",
+ "EV_DENIED",
+ "EV_CHKREQ",
+ "EV_CHKRESP",
+ "EV_REMOVE",
+ "EV_VERIFY",
+ "EV_TIMER",
+};
+
+static void
+tei_debug(struct FsmInst *fi, char *fmt, ...)
+{
+ struct teimgr *tm = fi->userdata;
+ va_list va;
+
+ if (!(*debug & DEBUG_L2_TEIFSM))
+ return;
+ va_start(va, fmt);
+ printk(KERN_DEBUG "tei(%d): ", tm->l2->tei);
+ vprintk(fmt, va);
+ printk("\n");
+ va_end(va);
+}
+
+
+
+static int
+get_free_id(struct manager *mgr)
+{
+ u64 ids = 0;
+ int i;
+ struct layer2 *l2;
+
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if (l2->ch.nr > 63) {
+ printk(KERN_WARNING
+ "%s: more as 63 layer2 for one device\n",
+ __func__);
+ return -EBUSY;
+ }
+ test_and_set_bit(l2->ch.nr, (u_long *)&ids);
+ }
+ for (i = 1; i < 64; i++)
+ if (!test_bit(i, (u_long *)&ids))
+ return i;
+ printk(KERN_WARNING "%s: more as 63 layer2 for one device\n",
+ __func__);
+ return -EBUSY;
+}
+
+static int
+get_free_tei(struct manager *mgr)
+{
+ u64 ids = 0;
+ int i;
+ struct layer2 *l2;
+
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if (l2->ch.nr == 0)
+ continue;
+ if ((l2->ch.addr & 0xff) != 0)
+ continue;
+ i = l2->ch.addr >> 8;
+ if (i < 64)
+ continue;
+ i -= 64;
+
+ test_and_set_bit(i, (u_long *)&ids);
+ }
+ for (i = 0; i < 64; i++)
+ if (!test_bit(i, (u_long *)&ids))
+ return i + 64;
+ printk(KERN_WARNING "%s: more as 63 dynamic tei for one device\n",
+ __func__);
+ return -1;
+}
+
+static void
+teiup_create(struct manager *mgr, u_int prim, int len, void *arg)
+{
+ struct sk_buff *skb;
+ struct mISDNhead *hh;
+ int err;
+
+ skb = mI_alloc_skb(len, GFP_ATOMIC);
+ if (!skb)
+ return;
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = prim;
+ hh->id = (mgr->ch.nr << 16) | mgr->ch.addr;
+ if (len)
+ memcpy(skb_put(skb, len), arg, len);
+ err = mgr->up->send(mgr->up, skb);
+ if (err) {
+ printk(KERN_WARNING "%s: err=%d\n", __func__, err);
+ dev_kfree_skb(skb);
+ }
+}
+
+static u_int
+new_id(struct manager *mgr)
+{
+ u_int id;
+
+ id = mgr->nextid++;
+ if (id == 0x7fff)
+ mgr->nextid = 1;
+ id <<= 16;
+ id |= GROUP_TEI << 8;
+ id |= TEI_SAPI;
+ return id;
+}
+
+static void
+do_send(struct manager *mgr)
+{
+ if (!test_bit(MGR_PH_ACTIVE, &mgr->options))
+ return;
+
+ if (!test_and_set_bit(MGR_PH_NOTREADY, &mgr->options)) {
+ struct sk_buff *skb = skb_dequeue(&mgr->sendq);
+
+ if (!skb) {
+ test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options);
+ return;
+ }
+ mgr->lastid = mISDN_HEAD_ID(skb);
+ mISDN_FsmEvent(&mgr->deact, EV_UI, NULL);
+ if (mgr->ch.recv(mgr->ch.peer, skb)) {
+ dev_kfree_skb(skb);
+ test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options);
+ mgr->lastid = MISDN_ID_NONE;
+ }
+ }
+}
+
+static void
+do_ack(struct manager *mgr, u_int id)
+{
+ if (test_bit(MGR_PH_NOTREADY, &mgr->options)) {
+ if (id == mgr->lastid) {
+ if (test_bit(MGR_PH_ACTIVE, &mgr->options)) {
+ struct sk_buff *skb;
+
+ skb = skb_dequeue(&mgr->sendq);
+ if (skb) {
+ mgr->lastid = mISDN_HEAD_ID(skb);
+ if (!mgr->ch.recv(mgr->ch.peer, skb))
+ return;
+ dev_kfree_skb(skb);
+ }
+ }
+ mgr->lastid = MISDN_ID_NONE;
+ test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options);
+ }
+ }
+}
+
+static void
+mgr_send_down(struct manager *mgr, struct sk_buff *skb)
+{
+ skb_queue_tail(&mgr->sendq, skb);
+ if (!test_bit(MGR_PH_ACTIVE, &mgr->options)) {
+ _queue_data(&mgr->ch, PH_ACTIVATE_REQ, MISDN_ID_ANY, 0,
+ NULL, GFP_KERNEL);
+ } else {
+ do_send(mgr);
+ }
+}
+
+static int
+dl_unit_data(struct manager *mgr, struct sk_buff *skb)
+{
+ if (!test_bit(MGR_OPT_NETWORK, &mgr->options)) /* only net send UI */
+ return -EINVAL;
+ if (!test_bit(MGR_PH_ACTIVE, &mgr->options))
+ _queue_data(&mgr->ch, PH_ACTIVATE_REQ, MISDN_ID_ANY, 0,
+ NULL, GFP_KERNEL);
+ skb_push(skb, 3);
+ skb->data[0] = 0x02; /* SAPI 0 C/R = 1 */
+ skb->data[1] = 0xff; /* TEI 127 */
+ skb->data[2] = UI; /* UI frame */
+ mISDN_HEAD_PRIM(skb) = PH_DATA_REQ;
+ mISDN_HEAD_ID(skb) = new_id(mgr);
+ skb_queue_tail(&mgr->sendq, skb);
+ do_send(mgr);
+ return 0;
+}
+
+unsigned int
+random_ri(void)
+{
+ u16 x;
+
+ get_random_bytes(&x, sizeof(x));
+ return x;
+}
+
+static struct layer2 *
+findtei(struct manager *mgr, int tei)
+{
+ struct layer2 *l2;
+ u_long flags;
+
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if ((l2->sapi == 0) && (l2->tei > 0) &&
+ (l2->tei != GROUP_TEI) && (l2->tei == tei))
+ goto done;
+ }
+ l2 = NULL;
+done:
+ read_unlock_irqrestore(&mgr->lock, flags);
+ return l2;
+}
+
+static void
+put_tei_msg(struct manager *mgr, u_char m_id, unsigned int ri, u_char tei)
+{
+ struct sk_buff *skb;
+ u_char bp[8];
+
+ bp[0] = (TEI_SAPI << 2);
+ if (test_bit(MGR_OPT_NETWORK, &mgr->options))
+ bp[0] |= 2; /* CR:=1 for net command */
+ bp[1] = (GROUP_TEI << 1) | 0x1;
+ bp[2] = UI;
+ bp[3] = TEI_ENTITY_ID;
+ bp[4] = ri >> 8;
+ bp[5] = ri & 0xff;
+ bp[6] = m_id;
+ bp[7] = (tei << 1) | 1;
+ skb = _alloc_mISDN_skb(PH_DATA_REQ, new_id(mgr),
+ 8, bp, GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_WARNING "%s: no skb for tei msg\n", __func__);
+ return;
+ }
+ mgr_send_down(mgr, skb);
+}
+
+static void
+tei_id_request(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (tm->l2->tei != GROUP_TEI) {
+ tm->tei_m.printdebug(&tm->tei_m,
+ "assign request for allready assigned tei %d",
+ tm->l2->tei);
+ return;
+ }
+ tm->ri = random_ri();
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(&tm->tei_m,
+ "assign request ri %d", tm->ri);
+ put_tei_msg(tm->mgr, ID_REQUEST, tm->ri, GROUP_TEI);
+ mISDN_FsmChangeState(fi, ST_TEI_IDREQ);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 1);
+ tm->nval = 3;
+}
+
+static void
+tei_id_assign(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ struct layer2 *l2;
+ u_char *dp = arg;
+ int ri, tei;
+
+ ri = ((unsigned int) *dp++ << 8);
+ ri += *dp++;
+ dp++;
+ tei = *dp >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity assign ri %d tei %d",
+ ri, tei);
+ l2 = findtei(tm->mgr, tei);
+ if (l2) { /* same tei is in use */
+ if (ri != l2->tm->ri) {
+ tm->tei_m.printdebug(fi,
+ "possible duplicate assignment tei %d", tei);
+ tei_l2(l2, MDL_ERROR_RSP, 0);
+ }
+ } else if (ri == tm->ri) {
+ mISDN_FsmDelTimer(&tm->timer, 1);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+ tei_l2(tm->l2, MDL_ASSIGN_REQ, tei);
+ }
+}
+
+static void
+tei_id_test_dup(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ struct layer2 *l2;
+ u_char *dp = arg;
+ int tei, ri;
+
+ ri = ((unsigned int) *dp++ << 8);
+ ri += *dp++;
+ dp++;
+ tei = *dp >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "foreign identity assign ri %d tei %d",
+ ri, tei);
+ l2 = findtei(tm->mgr, tei);
+ if (l2) { /* same tei is in use */
+ if (ri != l2->tm->ri) { /* and it wasn't our request */
+ tm->tei_m.printdebug(fi,
+ "possible duplicate assignment tei %d", tei);
+ mISDN_FsmEvent(&l2->tm->tei_m, EV_VERIFY, NULL);
+ }
+ }
+}
+
+static void
+tei_id_denied(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+ int ri, tei;
+
+ ri = ((unsigned int) *dp++ << 8);
+ ri += *dp++;
+ dp++;
+ tei = *dp >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity denied ri %d tei %d",
+ ri, tei);
+}
+
+static void
+tei_id_chk_req(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+ int tei;
+
+ tei = *(dp+3) >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity check req tei %d", tei);
+ if ((tm->l2->tei != GROUP_TEI) && ((tei == GROUP_TEI) ||
+ (tei == tm->l2->tei))) {
+ mISDN_FsmDelTimer(&tm->timer, 4);
+ mISDN_FsmChangeState(&tm->tei_m, ST_TEI_NOP);
+ put_tei_msg(tm->mgr, ID_CHK_RES, random_ri(), tm->l2->tei);
+ }
+}
+
+static void
+tei_id_remove(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+ int tei;
+
+ tei = *(dp+3) >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity remove tei %d", tei);
+ if ((tm->l2->tei != GROUP_TEI) &&
+ ((tei == GROUP_TEI) || (tei == tm->l2->tei))) {
+ mISDN_FsmDelTimer(&tm->timer, 5);
+ mISDN_FsmChangeState(&tm->tei_m, ST_TEI_NOP);
+ tei_l2(tm->l2, MDL_REMOVE_REQ, 0);
+ }
+}
+
+static void
+tei_id_verify(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "id verify request for tei %d",
+ tm->l2->tei);
+ put_tei_msg(tm->mgr, ID_VERIFY, 0, tm->l2->tei);
+ mISDN_FsmChangeState(&tm->tei_m, ST_TEI_IDVERIFY);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 2);
+ tm->nval = 2;
+}
+
+static void
+tei_id_req_tout(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (--tm->nval) {
+ tm->ri = random_ri();
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "assign req(%d) ri %d",
+ 4 - tm->nval, tm->ri);
+ put_tei_msg(tm->mgr, ID_REQUEST, tm->ri, GROUP_TEI);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 3);
+ } else {
+ tm->tei_m.printdebug(fi, "assign req failed");
+ tei_l2(tm->l2, MDL_ERROR_RSP, 0);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+ }
+}
+
+static void
+tei_id_ver_tout(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (--tm->nval) {
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi,
+ "id verify req(%d) for tei %d",
+ 3 - tm->nval, tm->l2->tei);
+ put_tei_msg(tm->mgr, ID_VERIFY, 0, tm->l2->tei);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 4);
+ } else {
+ tm->tei_m.printdebug(fi, "verify req for tei %d failed",
+ tm->l2->tei);
+ tei_l2(tm->l2, MDL_REMOVE_REQ, 0);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+ }
+}
+
+static struct FsmNode TeiFnListUser[] =
+{
+ {ST_TEI_NOP, EV_IDREQ, tei_id_request},
+ {ST_TEI_NOP, EV_ASSIGN, tei_id_test_dup},
+ {ST_TEI_NOP, EV_VERIFY, tei_id_verify},
+ {ST_TEI_NOP, EV_REMOVE, tei_id_remove},
+ {ST_TEI_NOP, EV_CHKREQ, tei_id_chk_req},
+ {ST_TEI_IDREQ, EV_TIMER, tei_id_req_tout},
+ {ST_TEI_IDREQ, EV_ASSIGN, tei_id_assign},
+ {ST_TEI_IDREQ, EV_DENIED, tei_id_denied},
+ {ST_TEI_IDVERIFY, EV_TIMER, tei_id_ver_tout},
+ {ST_TEI_IDVERIFY, EV_REMOVE, tei_id_remove},
+ {ST_TEI_IDVERIFY, EV_CHKREQ, tei_id_chk_req},
+};
+
+static void
+tei_l2remove(struct layer2 *l2)
+{
+ put_tei_msg(l2->tm->mgr, ID_REMOVE, 0, l2->tei);
+ tei_l2(l2, MDL_REMOVE_REQ, 0);
+ list_del(&l2->ch.list);
+ l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL);
+}
+
+static void
+tei_assign_req(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+
+ if (tm->l2->tei == GROUP_TEI) {
+ tm->tei_m.printdebug(&tm->tei_m,
+ "net tei assign request without tei");
+ return;
+ }
+ tm->ri = ((unsigned int) *dp++ << 8);
+ tm->ri += *dp++;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(&tm->tei_m,
+ "net assign request ri %d teim %d", tm->ri, *dp);
+ put_tei_msg(tm->mgr, ID_ASSIGNED, tm->ri, tm->l2->tei);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+}
+
+static void
+tei_id_chk_req_net(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "id check request for tei %d",
+ tm->l2->tei);
+ tm->rcnt = 0;
+ put_tei_msg(tm->mgr, ID_CHK_REQ, 0, tm->l2->tei);
+ mISDN_FsmChangeState(&tm->tei_m, ST_TEI_IDVERIFY);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 2);
+ tm->nval = 2;
+}
+
+static void
+tei_id_chk_resp(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+ int tei;
+
+ tei = dp[3] >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity check resp tei %d", tei);
+ if (tei == tm->l2->tei)
+ tm->rcnt++;
+}
+
+static void
+tei_id_verify_net(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+ u_char *dp = arg;
+ int tei;
+
+ tei = dp[3] >> 1;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi, "identity verify req tei %d/%d",
+ tei, tm->l2->tei);
+ if (tei == tm->l2->tei)
+ tei_id_chk_req_net(fi, event, arg);
+}
+
+static void
+tei_id_ver_tout_net(struct FsmInst *fi, int event, void *arg)
+{
+ struct teimgr *tm = fi->userdata;
+
+ if (tm->rcnt == 1) {
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi,
+ "check req for tei %d sucessful\n", tm->l2->tei);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+ } else if (tm->rcnt > 1) {
+ /* duplicate assignment; remove */
+ tei_l2remove(tm->l2);
+ } else if (--tm->nval) {
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(fi,
+ "id check req(%d) for tei %d",
+ 3 - tm->nval, tm->l2->tei);
+ put_tei_msg(tm->mgr, ID_CHK_REQ, 0, tm->l2->tei);
+ mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 4);
+ } else {
+ tm->tei_m.printdebug(fi, "check req for tei %d failed",
+ tm->l2->tei);
+ mISDN_FsmChangeState(fi, ST_TEI_NOP);
+ tei_l2remove(tm->l2);
+ }
+}
+
+static struct FsmNode TeiFnListNet[] =
+{
+ {ST_TEI_NOP, EV_ASSIGN_REQ, tei_assign_req},
+ {ST_TEI_NOP, EV_VERIFY, tei_id_verify_net},
+ {ST_TEI_NOP, EV_CHKREQ, tei_id_chk_req_net},
+ {ST_TEI_IDVERIFY, EV_TIMER, tei_id_ver_tout_net},
+ {ST_TEI_IDVERIFY, EV_CHKRESP, tei_id_chk_resp},
+};
+
+static void
+tei_ph_data_ind(struct teimgr *tm, u_int mt, u_char *dp, int len)
+{
+ if (test_bit(FLG_FIXED_TEI, &tm->l2->flag))
+ return;
+ if (*debug & DEBUG_L2_TEI)
+ tm->tei_m.printdebug(&tm->tei_m, "tei handler mt %x", mt);
+ if (mt == ID_ASSIGNED)
+ mISDN_FsmEvent(&tm->tei_m, EV_ASSIGN, dp);
+ else if (mt == ID_DENIED)
+ mISDN_FsmEvent(&tm->tei_m, EV_DENIED, dp);
+ else if (mt == ID_CHK_REQ)
+ mISDN_FsmEvent(&tm->tei_m, EV_CHKREQ, dp);
+ else if (mt == ID_REMOVE)
+ mISDN_FsmEvent(&tm->tei_m, EV_REMOVE, dp);
+ else if (mt == ID_VERIFY)
+ mISDN_FsmEvent(&tm->tei_m, EV_VERIFY, dp);
+ else if (mt == ID_CHK_RES)
+ mISDN_FsmEvent(&tm->tei_m, EV_CHKRESP, dp);
+}
+
+static struct layer2 *
+create_new_tei(struct manager *mgr, int tei)
+{
+ u_long opt = 0;
+ u_long flags;
+ int id;
+ struct layer2 *l2;
+
+ if (!mgr->up)
+ return NULL;
+ if (tei < 64)
+ test_and_set_bit(OPTION_L2_FIXEDTEI, &opt);
+ if (mgr->ch.st->dev->Dprotocols
+ & ((1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1)))
+ test_and_set_bit(OPTION_L2_PMX, &opt);
+ l2 = create_l2(mgr->up, ISDN_P_LAPD_NT, (u_int)opt, (u_long)tei);
+ if (!l2) {
+ printk(KERN_WARNING "%s:no memory for layer2\n", __func__);
+ return NULL;
+ }
+ l2->tm = kzalloc(sizeof(struct teimgr), GFP_KERNEL);
+ if (!l2->tm) {
+ kfree(l2);
+ printk(KERN_WARNING "%s:no memory for teimgr\n", __func__);
+ return NULL;
+ }
+ l2->tm->mgr = mgr;
+ l2->tm->l2 = l2;
+ l2->tm->tei_m.debug = *debug & DEBUG_L2_TEIFSM;
+ l2->tm->tei_m.userdata = l2->tm;
+ l2->tm->tei_m.printdebug = tei_debug;
+ l2->tm->tei_m.fsm = &teifsmn;
+ l2->tm->tei_m.state = ST_TEI_NOP;
+ l2->tm->tval = 2000; /* T202 2 sec */
+ mISDN_FsmInitTimer(&l2->tm->tei_m, &l2->tm->timer);
+ write_lock_irqsave(&mgr->lock, flags);
+ id = get_free_id(mgr);
+ list_add_tail(&l2->list, &mgr->layer2);
+ write_unlock_irqrestore(&mgr->lock, flags);
+ if (id < 0) {
+ l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL);
+ printk(KERN_WARNING "%s:no free id\n", __func__);
+ return NULL;
+ } else {
+ l2->ch.nr = id;
+ __add_layer2(&l2->ch, mgr->ch.st);
+ l2->ch.recv = mgr->ch.recv;
+ l2->ch.peer = mgr->ch.peer;
+ l2->ch.ctrl(&l2->ch, OPEN_CHANNEL, NULL);
+ }
+ return l2;
+}
+
+static void
+new_tei_req(struct manager *mgr, u_char *dp)
+{
+ int tei, ri;
+ struct layer2 *l2;
+
+ ri = dp[0] << 8;
+ ri += dp[1];
+ if (!mgr->up)
+ goto denied;
+ tei = get_free_tei(mgr);
+ if (tei < 0) {
+ printk(KERN_WARNING "%s:No free tei\n", __func__);
+ goto denied;
+ }
+ l2 = create_new_tei(mgr, tei);
+ if (!l2)
+ goto denied;
+ else
+ mISDN_FsmEvent(&l2->tm->tei_m, EV_ASSIGN_REQ, dp);
+ return;
+denied:
+ put_tei_msg(mgr, ID_DENIED, ri, GROUP_TEI);
+}
+
+static int
+ph_data_ind(struct manager *mgr, struct sk_buff *skb)
+{
+ int ret = -EINVAL;
+ struct layer2 *l2;
+ u_long flags;
+ u_char mt;
+
+ if (skb->len < 8) {
+ if (*debug & DEBUG_L2_TEI)
+ printk(KERN_DEBUG "%s: short mgr frame %d/8\n",
+ __func__, skb->len);
+ goto done;
+ }
+ if (*debug & DEBUG_L2_TEI)
+
+ if ((skb->data[0] >> 2) != TEI_SAPI) /* not for us */
+ goto done;
+ if (skb->data[0] & 1) /* EA0 formal error */
+ goto done;
+ if (!(skb->data[1] & 1)) /* EA1 formal error */
+ goto done;
+ if ((skb->data[1] >> 1) != GROUP_TEI) /* not for us */
+ goto done;
+ if ((skb->data[2] & 0xef) != UI) /* not UI */
+ goto done;
+ if (skb->data[3] != TEI_ENTITY_ID) /* not tei entity */
+ goto done;
+ mt = skb->data[6];
+ switch (mt) {
+ case ID_REQUEST:
+ case ID_CHK_RES:
+ case ID_VERIFY:
+ if (!test_bit(MGR_OPT_NETWORK, &mgr->options))
+ goto done;
+ break;
+ case ID_ASSIGNED:
+ case ID_DENIED:
+ case ID_CHK_REQ:
+ case ID_REMOVE:
+ if (test_bit(MGR_OPT_NETWORK, &mgr->options))
+ goto done;
+ break;
+ default:
+ goto done;
+ }
+ ret = 0;
+ if (mt == ID_REQUEST) {
+ new_tei_req(mgr, &skb->data[4]);
+ goto done;
+ }
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ tei_ph_data_ind(l2->tm, mt, &skb->data[4], skb->len - 4);
+ }
+ read_unlock_irqrestore(&mgr->lock, flags);
+done:
+ return ret;
+}
+
+int
+l2_tei(struct layer2 *l2, u_int cmd, u_long arg)
+{
+ struct teimgr *tm = l2->tm;
+
+ if (test_bit(FLG_FIXED_TEI, &l2->flag))
+ return 0;
+ if (*debug & DEBUG_L2_TEI)
+ printk(KERN_DEBUG "%s: cmd(%x)\n", __func__, cmd);
+ switch (cmd) {
+ case MDL_ASSIGN_IND:
+ mISDN_FsmEvent(&tm->tei_m, EV_IDREQ, NULL);
+ break;
+ case MDL_ERROR_IND:
+ if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options))
+ mISDN_FsmEvent(&tm->tei_m, EV_CHKREQ, &l2->tei);
+ if (test_bit(MGR_OPT_USER, &tm->mgr->options))
+ mISDN_FsmEvent(&tm->tei_m, EV_VERIFY, NULL);
+ break;
+ case MDL_STATUS_UP_IND:
+ if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options))
+ mISDN_FsmEvent(&tm->mgr->deact, EV_ACTIVATE, NULL);
+ break;
+ case MDL_STATUS_DOWN_IND:
+ if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options))
+ mISDN_FsmEvent(&tm->mgr->deact, EV_DEACTIVATE, NULL);
+ break;
+ case MDL_STATUS_UI_IND:
+ if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options))
+ mISDN_FsmEvent(&tm->mgr->deact, EV_UI, NULL);
+ break;
+ }
+ return 0;
+}
+
+void
+release_tei(struct layer2 *l2)
+{
+ struct teimgr *tm = l2->tm;
+ u_long flags;
+
+ mISDN_FsmDelTimer(&tm->timer, 1);
+ write_lock_irqsave(&tm->mgr->lock, flags);
+ list_del(&l2->list);
+ write_unlock_irqrestore(&tm->mgr->lock, flags);
+ l2->tm = NULL;
+ kfree(tm);
+}
+
+static int
+create_teimgr(struct manager *mgr, struct channel_req *crq)
+{
+ struct layer2 *l2;
+ u_long opt = 0;
+ u_long flags;
+ int id;
+
+ if (*debug & DEBUG_L2_TEI)
+ printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n",
+ __func__, mgr->ch.st->dev->name, crq->protocol,
+ crq->adr.dev, crq->adr.channel, crq->adr.sapi,
+ crq->adr.tei);
+ if (crq->adr.sapi != 0) /* not supported yet */
+ return -EINVAL;
+ if (crq->adr.tei > GROUP_TEI)
+ return -EINVAL;
+ if (crq->adr.tei < 64)
+ test_and_set_bit(OPTION_L2_FIXEDTEI, &opt);
+ if (crq->adr.tei == 0)
+ test_and_set_bit(OPTION_L2_PTP, &opt);
+ if (test_bit(MGR_OPT_NETWORK, &mgr->options)) {
+ if (crq->protocol == ISDN_P_LAPD_TE)
+ return -EPROTONOSUPPORT;
+ if ((crq->adr.tei != 0) && (crq->adr.tei != 127))
+ return -EINVAL;
+ if (mgr->up) {
+ printk(KERN_WARNING
+ "%s: only one network manager is allowed\n",
+ __func__);
+ return -EBUSY;
+ }
+ } else if (test_bit(MGR_OPT_USER, &mgr->options)) {
+ if (crq->protocol == ISDN_P_LAPD_NT)
+ return -EPROTONOSUPPORT;
+ if ((crq->adr.tei >= 64) && (crq->adr.tei < GROUP_TEI))
+ return -EINVAL; /* dyn tei */
+ } else {
+ if (crq->protocol == ISDN_P_LAPD_NT)
+ test_and_set_bit(MGR_OPT_NETWORK, &mgr->options);
+ if (crq->protocol == ISDN_P_LAPD_TE)
+ test_and_set_bit(MGR_OPT_USER, &mgr->options);
+ }
+ if (mgr->ch.st->dev->Dprotocols
+ & ((1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1)))
+ test_and_set_bit(OPTION_L2_PMX, &opt);
+ if ((crq->protocol == ISDN_P_LAPD_NT) && (crq->adr.tei == 127)) {
+ mgr->up = crq->ch;
+ id = DL_INFO_L2_CONNECT;
+ teiup_create(mgr, DL_INFORMATION_IND, sizeof(id), &id);
+ crq->ch = NULL;
+ if (!list_empty(&mgr->layer2)) {
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ l2->up = mgr->up;
+ l2->ch.ctrl(&l2->ch, OPEN_CHANNEL, NULL);
+ }
+ read_unlock_irqrestore(&mgr->lock, flags);
+ }
+ return 0;
+ }
+ l2 = create_l2(crq->ch, crq->protocol, (u_int)opt,
+ (u_long)crq->adr.tei);
+ if (!l2)
+ return -ENOMEM;
+ l2->tm = kzalloc(sizeof(struct teimgr), GFP_KERNEL);
+ if (!l2->tm) {
+ kfree(l2);
+ printk(KERN_ERR "kmalloc teimgr failed\n");
+ return -ENOMEM;
+ }
+ l2->tm->mgr = mgr;
+ l2->tm->l2 = l2;
+ l2->tm->tei_m.debug = *debug & DEBUG_L2_TEIFSM;
+ l2->tm->tei_m.userdata = l2->tm;
+ l2->tm->tei_m.printdebug = tei_debug;
+ if (crq->protocol == ISDN_P_LAPD_TE) {
+ l2->tm->tei_m.fsm = &teifsmu;
+ l2->tm->tei_m.state = ST_TEI_NOP;
+ l2->tm->tval = 1000; /* T201 1 sec */
+ } else {
+ l2->tm->tei_m.fsm = &teifsmn;
+ l2->tm->tei_m.state = ST_TEI_NOP;
+ l2->tm->tval = 2000; /* T202 2 sec */
+ }
+ mISDN_FsmInitTimer(&l2->tm->tei_m, &l2->tm->timer);
+ write_lock_irqsave(&mgr->lock, flags);
+ id = get_free_id(mgr);
+ list_add_tail(&l2->list, &mgr->layer2);
+ write_unlock_irqrestore(&mgr->lock, flags);
+ if (id < 0) {
+ l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL);
+ } else {
+ l2->ch.nr = id;
+ l2->up->nr = id;
+ crq->ch = &l2->ch;
+ id = 0;
+ }
+ return id;
+}
+
+static int
+mgr_send(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct manager *mgr;
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int ret = -EINVAL;
+
+ mgr = container_of(ch, struct manager, ch);
+ if (*debug & DEBUG_L2_RECV)
+ printk(KERN_DEBUG "%s: prim(%x) id(%x)\n",
+ __func__, hh->prim, hh->id);
+ switch (hh->prim) {
+ case PH_DATA_IND:
+ mISDN_FsmEvent(&mgr->deact, EV_UI, NULL);
+ ret = ph_data_ind(mgr, skb);
+ break;
+ case PH_DATA_CNF:
+ do_ack(mgr, hh->id);
+ ret = 0;
+ break;
+ case PH_ACTIVATE_IND:
+ test_and_set_bit(MGR_PH_ACTIVE, &mgr->options);
+ mISDN_FsmEvent(&mgr->deact, EV_ACTIVATE_IND, NULL);
+ do_send(mgr);
+ ret = 0;
+ break;
+ case PH_DEACTIVATE_IND:
+ test_and_clear_bit(MGR_PH_ACTIVE, &mgr->options);
+ mISDN_FsmEvent(&mgr->deact, EV_DEACTIVATE_IND, NULL);
+ ret = 0;
+ break;
+ case DL_UNITDATA_REQ:
+ return dl_unit_data(mgr, skb);
+ }
+ if (!ret)
+ dev_kfree_skb(skb);
+ return ret;
+}
+
+static int
+free_teimanager(struct manager *mgr)
+{
+ struct layer2 *l2, *nl2;
+
+ if (test_bit(MGR_OPT_NETWORK, &mgr->options)) {
+ /* not locked lock is taken in release tei */
+ mgr->up = NULL;
+ if (test_bit(OPTION_L2_CLEANUP, &mgr->options)) {
+ list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) {
+ put_tei_msg(mgr, ID_REMOVE, 0, l2->tei);
+ mutex_lock(&mgr->ch.st->lmutex);
+ list_del(&l2->ch.list);
+ mutex_unlock(&mgr->ch.st->lmutex);
+ l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL);
+ }
+ test_and_clear_bit(MGR_OPT_NETWORK, &mgr->options);
+ } else {
+ list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) {
+ l2->up = NULL;
+ }
+ }
+ }
+ if (test_bit(MGR_OPT_USER, &mgr->options)) {
+ if (list_empty(&mgr->layer2))
+ test_and_clear_bit(MGR_OPT_USER, &mgr->options);
+ }
+ mgr->ch.st->dev->D.ctrl(&mgr->ch.st->dev->D, CLOSE_CHANNEL, NULL);
+ return 0;
+}
+
+static int
+ctrl_teimanager(struct manager *mgr, void *arg)
+{
+ /* currently we only have one option */
+ int clean = *((int *)arg);
+
+ if (clean)
+ test_and_set_bit(OPTION_L2_CLEANUP, &mgr->options);
+ else
+ test_and_clear_bit(OPTION_L2_CLEANUP, &mgr->options);
+ return 0;
+}
+
+/* This function does create a L2 for fixed TEI in NT Mode */
+static int
+check_data(struct manager *mgr, struct sk_buff *skb)
+{
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ int ret, tei;
+ struct layer2 *l2;
+
+ if (*debug & DEBUG_L2_CTRL)
+ printk(KERN_DEBUG "%s: prim(%x) id(%x)\n",
+ __func__, hh->prim, hh->id);
+ if (test_bit(MGR_OPT_USER, &mgr->options))
+ return -ENOTCONN;
+ if (hh->prim != PH_DATA_IND)
+ return -ENOTCONN;
+ if (skb->len != 3)
+ return -ENOTCONN;
+ if (skb->data[0] != 0)
+ /* only SAPI 0 command */
+ return -ENOTCONN;
+ if (!(skb->data[1] & 1)) /* invalid EA1 */
+ return -EINVAL;
+ tei = skb->data[1] >> 0;
+ if (tei > 63) /* not a fixed tei */
+ return -ENOTCONN;
+ if ((skb->data[2] & ~0x10) != SABME)
+ return -ENOTCONN;
+ /* We got a SABME for a fixed TEI */
+ l2 = create_new_tei(mgr, tei);
+ if (!l2)
+ return -ENOMEM;
+ ret = l2->ch.send(&l2->ch, skb);
+ return ret;
+}
+
+void
+delete_teimanager(struct mISDNchannel *ch)
+{
+ struct manager *mgr;
+ struct layer2 *l2, *nl2;
+
+ mgr = container_of(ch, struct manager, ch);
+ /* not locked lock is taken in release tei */
+ list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) {
+ mutex_lock(&mgr->ch.st->lmutex);
+ list_del(&l2->ch.list);
+ mutex_unlock(&mgr->ch.st->lmutex);
+ l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL);
+ }
+ list_del(&mgr->ch.list);
+ list_del(&mgr->bcast.list);
+ skb_queue_purge(&mgr->sendq);
+ kfree(mgr);
+}
+
+static int
+mgr_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+ struct manager *mgr;
+ int ret = -EINVAL;
+
+ mgr = container_of(ch, struct manager, ch);
+ if (*debug & DEBUG_L2_CTRL)
+ printk(KERN_DEBUG "%s(%x, %p)\n", __func__, cmd, arg);
+ switch (cmd) {
+ case OPEN_CHANNEL:
+ ret = create_teimgr(mgr, arg);
+ break;
+ case CLOSE_CHANNEL:
+ ret = free_teimanager(mgr);
+ break;
+ case CONTROL_CHANNEL:
+ ret = ctrl_teimanager(mgr, arg);
+ break;
+ case CHECK_DATA:
+ ret = check_data(mgr, arg);
+ break;
+ }
+ return ret;
+}
+
+static int
+mgr_bcast(struct mISDNchannel *ch, struct sk_buff *skb)
+{
+ struct manager *mgr = container_of(ch, struct manager, bcast);
+ struct mISDNhead *hh = mISDN_HEAD_P(skb);
+ struct sk_buff *cskb = NULL;
+ struct layer2 *l2;
+ u_long flags;
+ int ret;
+
+ read_lock_irqsave(&mgr->lock, flags);
+ list_for_each_entry(l2, &mgr->layer2, list) {
+ if ((hh->id & MISDN_ID_SAPI_MASK) ==
+ (l2->ch.addr & MISDN_ID_SAPI_MASK)) {
+ if (list_is_last(&l2->list, &mgr->layer2)) {
+ cskb = skb;
+ skb = NULL;
+ } else {
+ if (!cskb)
+ cskb = skb_copy(skb, GFP_KERNEL);
+ }
+ if (cskb) {
+ ret = l2->ch.send(&l2->ch, cskb);
+ if (ret) {
+ if (*debug & DEBUG_SEND_ERR)
+ printk(KERN_DEBUG
+ "%s ch%d prim(%x) addr(%x)"
+ " err %d\n",
+ __func__, l2->ch.nr,
+ hh->prim, l2->ch.addr, ret);
+ } else
+ cskb = NULL;
+ } else {
+ printk(KERN_WARNING "%s ch%d addr %x no mem\n",
+ __func__, ch->nr, ch->addr);
+ goto out;
+ }
+ }
+ }
+out:
+ read_unlock_irqrestore(&mgr->lock, flags);
+ if (cskb)
+ dev_kfree_skb(cskb);
+ if (skb)
+ dev_kfree_skb(skb);
+ return 0;
+}
+
+static int
+mgr_bcast_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
+{
+
+ return -EINVAL;
+}
+
+int
+create_teimanager(struct mISDNdevice *dev)
+{
+ struct manager *mgr;
+
+ mgr = kzalloc(sizeof(struct manager), GFP_KERNEL);
+ if (!mgr)
+ return -ENOMEM;
+ INIT_LIST_HEAD(&mgr->layer2);
+ mgr->lock = __RW_LOCK_UNLOCKED(mgr->lock);
+ skb_queue_head_init(&mgr->sendq);
+ mgr->nextid = 1;
+ mgr->lastid = MISDN_ID_NONE;
+ mgr->ch.send = mgr_send;
+ mgr->ch.ctrl = mgr_ctrl;
+ mgr->ch.st = dev->D.st;
+ set_channel_address(&mgr->ch, TEI_SAPI, GROUP_TEI);
+ add_layer2(&mgr->ch, dev->D.st);
+ mgr->bcast.send = mgr_bcast;
+ mgr->bcast.ctrl = mgr_bcast_ctrl;
+ mgr->bcast.st = dev->D.st;
+ set_channel_address(&mgr->bcast, 0, GROUP_TEI);
+ add_layer2(&mgr->bcast, dev->D.st);
+ mgr->deact.debug = *debug & DEBUG_MANAGER;
+ mgr->deact.userdata = mgr;
+ mgr->deact.printdebug = da_debug;
+ mgr->deact.fsm = &deactfsm;
+ mgr->deact.state = ST_L1_DEACT;
+ mISDN_FsmInitTimer(&mgr->deact, &mgr->datimer);
+ dev->teimgr = &mgr->ch;
+ return 0;
+}
+
+int TEIInit(u_int *deb)
+{
+ debug = deb;
+ teifsmu.state_count = TEI_STATE_COUNT;
+ teifsmu.event_count = TEI_EVENT_COUNT;
+ teifsmu.strEvent = strTeiEvent;
+ teifsmu.strState = strTeiState;
+ mISDN_FsmNew(&teifsmu, TeiFnListUser, ARRAY_SIZE(TeiFnListUser));
+ teifsmn.state_count = TEI_STATE_COUNT;
+ teifsmn.event_count = TEI_EVENT_COUNT;
+ teifsmn.strEvent = strTeiEvent;
+ teifsmn.strState = strTeiState;
+ mISDN_FsmNew(&teifsmn, TeiFnListNet, ARRAY_SIZE(TeiFnListNet));
+ deactfsm.state_count = DEACT_STATE_COUNT;
+ deactfsm.event_count = DEACT_EVENT_COUNT;
+ deactfsm.strEvent = strDeactEvent;
+ deactfsm.strState = strDeactState;
+ mISDN_FsmNew(&deactfsm, DeactFnList, ARRAY_SIZE(DeactFnList));
+ return 0;
+}
+
+void TEIFree(void)
+{
+ mISDN_FsmFree(&teifsmu);
+ mISDN_FsmFree(&teifsmn);
+ mISDN_FsmFree(&deactfsm);
+}
--- /dev/null
+/*
+ *
+ * general timer device for using in ISDN stacks
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/poll.h>
+#include <linux/vmalloc.h>
+#include <linux/timer.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/mISDNif.h>
+
+static int *debug;
+
+
+struct mISDNtimerdev {
+ int next_id;
+ struct list_head pending;
+ struct list_head expired;
+ wait_queue_head_t wait;
+ u_int work;
+ spinlock_t lock; /* protect lists */
+};
+
+struct mISDNtimer {
+ struct list_head list;
+ struct mISDNtimerdev *dev;
+ struct timer_list tl;
+ int id;
+};
+
+static int
+mISDN_open(struct inode *ino, struct file *filep)
+{
+ struct mISDNtimerdev *dev;
+
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s(%p,%p)\n", __func__, ino, filep);
+ dev = kmalloc(sizeof(struct mISDNtimerdev) , GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+ dev->next_id = 1;
+ INIT_LIST_HEAD(&dev->pending);
+ INIT_LIST_HEAD(&dev->expired);
+ spin_lock_init(&dev->lock);
+ dev->work = 0;
+ init_waitqueue_head(&dev->wait);
+ filep->private_data = dev;
+ __module_get(THIS_MODULE);
+ return 0;
+}
+
+static int
+mISDN_close(struct inode *ino, struct file *filep)
+{
+ struct mISDNtimerdev *dev = filep->private_data;
+ struct mISDNtimer *timer, *next;
+
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s(%p,%p)\n", __func__, ino, filep);
+ list_for_each_entry_safe(timer, next, &dev->pending, list) {
+ del_timer(&timer->tl);
+ kfree(timer);
+ }
+ list_for_each_entry_safe(timer, next, &dev->expired, list) {
+ kfree(timer);
+ }
+ kfree(dev);
+ module_put(THIS_MODULE);
+ return 0;
+}
+
+static ssize_t
+mISDN_read(struct file *filep, char *buf, size_t count, loff_t *off)
+{
+ struct mISDNtimerdev *dev = filep->private_data;
+ struct mISDNtimer *timer;
+ u_long flags;
+ int ret = 0;
+
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s(%p, %p, %d, %p)\n", __func__,
+ filep, buf, (int)count, off);
+ if (*off != filep->f_pos)
+ return -ESPIPE;
+
+ if (list_empty(&dev->expired) && (dev->work == 0)) {
+ if (filep->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+ wait_event_interruptible(dev->wait, (dev->work ||
+ !list_empty(&dev->expired)));
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ }
+ if (count < sizeof(int))
+ return -ENOSPC;
+ if (dev->work)
+ dev->work = 0;
+ if (!list_empty(&dev->expired)) {
+ spin_lock_irqsave(&dev->lock, flags);
+ timer = (struct mISDNtimer *)dev->expired.next;
+ list_del(&timer->list);
+ spin_unlock_irqrestore(&dev->lock, flags);
+ if (put_user(timer->id, (int *)buf))
+ ret = -EFAULT;
+ else
+ ret = sizeof(int);
+ kfree(timer);
+ }
+ return ret;
+}
+
+static loff_t
+mISDN_llseek(struct file *filep, loff_t offset, int orig)
+{
+ return -ESPIPE;
+}
+
+static ssize_t
+mISDN_write(struct file *filep, const char *buf, size_t count, loff_t *off)
+{
+ return -EOPNOTSUPP;
+}
+
+static unsigned int
+mISDN_poll(struct file *filep, poll_table *wait)
+{
+ struct mISDNtimerdev *dev = filep->private_data;
+ unsigned int mask = POLLERR;
+
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s(%p, %p)\n", __func__, filep, wait);
+ if (dev) {
+ poll_wait(filep, &dev->wait, wait);
+ mask = 0;
+ if (dev->work || !list_empty(&dev->expired))
+ mask |= (POLLIN | POLLRDNORM);
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s work(%d) empty(%d)\n", __func__,
+ dev->work, list_empty(&dev->expired));
+ }
+ return mask;
+}
+
+static void
+dev_expire_timer(struct mISDNtimer *timer)
+{
+ u_long flags;
+
+ spin_lock_irqsave(&timer->dev->lock, flags);
+ list_del(&timer->list);
+ list_add_tail(&timer->list, &timer->dev->expired);
+ spin_unlock_irqrestore(&timer->dev->lock, flags);
+ wake_up_interruptible(&timer->dev->wait);
+}
+
+static int
+misdn_add_timer(struct mISDNtimerdev *dev, int timeout)
+{
+ int id;
+ u_long flags;
+ struct mISDNtimer *timer;
+
+ if (!timeout) {
+ dev->work = 1;
+ wake_up_interruptible(&dev->wait);
+ id = 0;
+ } else {
+ timer = kzalloc(sizeof(struct mISDNtimer), GFP_KERNEL);
+ if (!timer)
+ return -ENOMEM;
+ spin_lock_irqsave(&dev->lock, flags);
+ timer->id = dev->next_id++;
+ if (dev->next_id < 0)
+ dev->next_id = 1;
+ list_add_tail(&timer->list, &dev->pending);
+ spin_unlock_irqrestore(&dev->lock, flags);
+ timer->dev = dev;
+ timer->tl.data = (long)timer;
+ timer->tl.function = (void *) dev_expire_timer;
+ init_timer(&timer->tl);
+ timer->tl.expires = jiffies + ((HZ * (u_long)timeout) / 1000);
+ add_timer(&timer->tl);
+ id = timer->id;
+ }
+ return id;
+}
+
+static int
+misdn_del_timer(struct mISDNtimerdev *dev, int id)
+{
+ u_long flags;
+ struct mISDNtimer *timer;
+ int ret = 0;
+
+ spin_lock_irqsave(&dev->lock, flags);
+ list_for_each_entry(timer, &dev->pending, list) {
+ if (timer->id == id) {
+ list_del_init(&timer->list);
+ del_timer(&timer->tl);
+ ret = timer->id;
+ kfree(timer);
+ goto unlock;
+ }
+ }
+unlock:
+ spin_unlock_irqrestore(&dev->lock, flags);
+ return ret;
+}
+
+static int
+mISDN_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
+ unsigned long arg)
+{
+ struct mISDNtimerdev *dev = filep->private_data;
+ int id, tout, ret = 0;
+
+
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s(%p, %x, %lx)\n", __func__,
+ filep, cmd, arg);
+ switch (cmd) {
+ case IMADDTIMER:
+ if (get_user(tout, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+ id = misdn_add_timer(dev, tout);
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s add %d id %d\n", __func__,
+ tout, id);
+ if (id < 0) {
+ ret = id;
+ break;
+ }
+ if (put_user(id, (int __user *)arg))
+ ret = -EFAULT;
+ break;
+ case IMDELTIMER:
+ if (get_user(id, (int __user *)arg)) {
+ ret = -EFAULT;
+ break;
+ }
+ if (*debug & DEBUG_TIMER)
+ printk(KERN_DEBUG "%s del id %d\n", __func__, id);
+ id = misdn_del_timer(dev, id);
+ if (put_user(id, (int __user *)arg))
+ ret = -EFAULT;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static struct file_operations mISDN_fops = {
+ .llseek = mISDN_llseek,
+ .read = mISDN_read,
+ .write = mISDN_write,
+ .poll = mISDN_poll,
+ .ioctl = mISDN_ioctl,
+ .open = mISDN_open,
+ .release = mISDN_close,
+};
+
+static struct miscdevice mISDNtimer = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "mISDNtimer",
+ .fops = &mISDN_fops,
+};
+
+int
+mISDN_inittimer(int *deb)
+{
+ int err;
+
+ debug = deb;
+ err = misc_register(&mISDNtimer);
+ if (err)
+ printk(KERN_WARNING "mISDN: Could not register timer device\n");
+ return err;
+}
+
+void mISDN_timer_cleanup(void)
+{
+ misc_deregister(&mISDNtimer);
+}
}
/* release skb */
- BUG_TRAP(skb);
+ WARN_ON(!skb);
dev_kfree_skb(skb);
tx_buf->first_bd = 0;
tx_buf->skb = NULL;
used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS;
#ifdef BNX2X_STOP_ON_ERROR
- BUG_TRAP(used >= 0);
- BUG_TRAP(used <= fp->bp->tx_ring_size);
- BUG_TRAP((fp->bp->tx_ring_size - used) <= MAX_TX_AVAIL);
+ WARN_ON(used < 0);
+ WARN_ON(used > fp->bp->tx_ring_size);
+ WARN_ON((fp->bp->tx_ring_size - used) > MAX_TX_AVAIL);
#endif
return (s16)(fp->bp->tx_ring_size) - used;
}
ring_prod = NEXT_RX_IDX(ring_prod);
cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod);
- BUG_TRAP(ring_prod > i);
+ WARN_ON(ring_prod <= i);
}
fp->rx_bd_prod = ring_prod;
struct qeth_card *card;
char dbf_text[15];
- card = netdev_priv(dev);
+ card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 4, "chgmtu");
sprintf(dbf_text, "%8x", new_mtu);
{
struct qeth_card *card;
- card = netdev_priv(dev);
+ card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 5, "getstat");
{
struct qeth_card *card;
- card = netdev_priv(dev);
+ card = dev->ml_priv;
card->stats.tx_errors++;
qeth_schedule_recovery(card);
}
int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
int rc = 0;
switch (regnum) {
void qeth_core_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
data[0] = card->stats.rx_packets -
card->perf_stats.initial_rx_packets;
data[1] = card->perf_stats.bufs_rec;
void qeth_core_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
if (card->options.layer2)
strcpy(info->driver, "qeth_l2");
else
int qeth_core_ethtool_get_settings(struct net_device *netdev,
struct ethtool_cmd *ecmd)
{
- struct qeth_card *card = netdev_priv(netdev);
+ struct qeth_card *card = netdev->ml_priv;
enum qeth_link_types link_type;
if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct mii_ioctl_data *mii_data;
int rc = 0;
static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct qeth_vlan_vid *id;
QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid);
static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
struct qeth_vlan_vid *id, *tmpid = NULL;
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid);
spin_lock_bh(&card->vlanlock);
static int qeth_l2_set_mac_address(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
int rc = 0;
QETH_DBF_TEXT(TRACE, 3, "setmac");
static void qeth_l2_set_multicast_list(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct dev_mc_list *dm;
if (card->info.type == QETH_CARD_TYPE_OSN)
int rc;
struct qeth_hdr *hdr = NULL;
int elements = 0;
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct sk_buff *new_skb = skb;
int ipv = qeth_get_ip_version(skb);
int cast_type = qeth_get_cast_type(card, skb);
static int qeth_l2_open(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 4, "qethopen");
if (card->state != CARD_STATE_SOFTSETUP)
static int qeth_l2_stop(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 4, "qethstop");
netif_tx_disable(dev);
static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
if (data) {
if (card->options.large_send == QETH_LARGE_SEND_NO) {
if (!card->dev)
return -ENODEV;
- card->dev->priv = card;
+ card->dev->ml_priv = card;
card->dev->tx_timeout = &qeth_tx_timeout;
card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
card->dev->open = qeth_l2_open;
QETH_DBF_TEXT(TRACE, 2, "osnsdmc");
if (!dev)
return -ENODEV;
- card = netdev_priv(dev);
+ card = dev->ml_priv;
if (!card)
return -ENODEV;
if ((card->state != CARD_STATE_UP) &&
*dev = qeth_l2_netdev_by_devno(read_dev_no);
if (*dev == NULL)
return -ENODEV;
- card = netdev_priv(*dev);
+ card = (*dev)->ml_priv;
if (!card)
return -ENODEV;
if ((assist_cb == NULL) || (data_cb == NULL))
QETH_DBF_TEXT(TRACE, 2, "osndereg");
if (!dev)
return;
- card = netdev_priv(dev);
+ card = dev->ml_priv;
if (!card)
return;
card->osn_info.assist_cb = NULL;
static void qeth_l3_vlan_rx_register(struct net_device *dev,
struct vlan_group *grp)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
unsigned long flags;
QETH_DBF_TEXT(TRACE, 4, "vlanreg");
static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
{
struct net_device *vlandev;
- struct qeth_card *card = (struct qeth_card *) dev->priv;
+ struct qeth_card *card = dev->ml_priv;
struct in_device *in_dev;
if (card->info.type == QETH_CARD_TYPE_IQD)
static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
unsigned long flags;
QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid);
}
}
- if (rc && !(netdev_priv(vlan_dev_real_dev(dev)) == (void *)card))
+ if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card))
return 0;
return rc;
rc = qeth_l3_verify_dev(dev);
if (rc == QETH_REAL_CARD)
- card = netdev_priv(dev);
+ card = dev->ml_priv;
else if (rc == QETH_VLAN_CARD)
- card = netdev_priv(vlan_dev_real_dev(dev));
+ card = vlan_dev_real_dev(dev)->ml_priv;
if (card && card->options.layer2)
card = NULL;
QETH_DBF_TEXT_(TRACE, 4, "%d", rc);
static void qeth_l3_set_multicast_list(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 3, "setmulti");
qeth_l3_delete_mc_addresses(card);
static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct qeth_arp_cache_entry arp_entry;
struct mii_ioctl_data *mii_data;
int rc = 0;
u16 *tag;
struct qeth_hdr *hdr = NULL;
int elements_needed = 0;
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
struct sk_buff *new_skb = NULL;
int ipv = qeth_get_ip_version(skb);
int cast_type = qeth_get_cast_type(card, skb);
static int qeth_l3_open(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 4, "qethopen");
if (card->state != CARD_STATE_SOFTSETUP)
static int qeth_l3_stop(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
QETH_DBF_TEXT(TRACE, 4, "qethstop");
netif_tx_disable(dev);
static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
return (card->options.checksum_type == HW_CHECKSUMMING);
}
static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
enum qeth_card_states old_state;
enum qeth_checksum_types csum_type;
static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data)
{
- struct qeth_card *card = netdev_priv(dev);
+ struct qeth_card *card = dev->ml_priv;
if (data) {
if (card->options.large_send == QETH_LARGE_SEND_NO) {
return -ENODEV;
card->dev->hard_start_xmit = qeth_l3_hard_start_xmit;
- card->dev->priv = card;
+ card->dev->ml_priv = card;
card->dev->tx_timeout = &qeth_tx_timeout;
card->dev->watchdog_timeo = QETH_TX_TIMEOUT;
card->dev->open = qeth_l3_open;
u64 rchar, wchar, syscr, syscw;
struct task_io_accounting ioac;
- if (!whole) {
- rchar = task->rchar;
- wchar = task->wchar;
- syscr = task->syscr;
- syscw = task->syscw;
- memcpy(&ioac, &task->ioac, sizeof(ioac));
- } else {
- unsigned long flags;
- struct task_struct *t = task;
- rchar = wchar = syscr = syscw = 0;
- memset(&ioac, 0, sizeof(ioac));
+ rchar = task->rchar;
+ wchar = task->wchar;
+ syscr = task->syscr;
+ syscw = task->syscw;
+ memcpy(&ioac, &task->ioac, sizeof(ioac));
- rcu_read_lock();
- do {
- rchar += t->rchar;
- wchar += t->wchar;
- syscr += t->syscr;
- syscw += t->syscw;
-
- ioac.read_bytes += t->ioac.read_bytes;
- ioac.write_bytes += t->ioac.write_bytes;
- ioac.cancelled_write_bytes +=
- t->ioac.cancelled_write_bytes;
- t = next_thread(t);
- } while (t != task);
- rcu_read_unlock();
+ if (whole) {
+ unsigned long flags;
if (lock_task_sighand(task, &flags)) {
struct signal_struct *sig = task->signal;
+ struct task_struct *t = task;
rchar += sig->rchar;
wchar += sig->wchar;
ioac.write_bytes += sig->ioac.write_bytes;
ioac.cancelled_write_bytes +=
sig->ioac.cancelled_write_bytes;
-
+ while_each_thread(task, t) {
+ rchar += t->rchar;
+ wchar += t->wchar;
+ syscr += t->syscr;
+ syscw += t->syscw;
+
+ ioac.read_bytes += t->ioac.read_bytes;
+ ioac.write_bytes += t->ioac.write_bytes;
+ ioac.cancelled_write_bytes +=
+ t->ioac.cancelled_write_bytes;
+ }
unlock_task_sighand(task, &flags);
}
}
-
return sprintf(buffer,
"rchar: %llu\n"
"wchar: %llu\n"
"read_bytes: %llu\n"
"write_bytes: %llu\n"
"cancelled_write_bytes: %llu\n",
- (unsigned long long)rchar,
- (unsigned long long)wchar,
- (unsigned long long)syscr,
- (unsigned long long)syscw,
- (unsigned long long)ioac.read_bytes,
- (unsigned long long)ioac.write_bytes,
- (unsigned long long)ioac.cancelled_write_bytes);
+ rchar, wchar, syscr, syscw,
+ ioac.read_bytes, ioac.write_bytes,
+ ioac.cancelled_write_bytes);
}
static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
*
* While the GPIO programming interface defines valid GPIO numbers
* to be in the range 0..MAX_INT, this library restricts them to the
- * smaller range 0..ARCH_NR_GPIOS.
+ * smaller range 0..ARCH_NR_GPIOS-1.
*/
#ifndef ARCH_NR_GPIOS
#define huge_page_mask(h) PAGE_MASK
#define huge_page_order(h) 0
#define huge_page_shift(h) PAGE_SHIFT
-#define pages_per_huge_page(h) 1
+static inline unsigned int pages_per_huge_page(struct hstate *h)
+{
+ return 1;
+}
#endif
#endif /* _LINUX_HUGETLB_H */
--- /dev/null
+#ifndef __mISDNdsp_H__
+#define __mISDNdsp_H__
+
+struct mISDN_dsp_element_arg {
+ char *name;
+ char *def;
+ char *desc;
+};
+
+struct mISDN_dsp_element {
+ char *name;
+ void *(*new)(const char *arg);
+ void (*free)(void *p);
+ void (*process_tx)(void *p, unsigned char *data, int len);
+ void (*process_rx)(void *p, unsigned char *data, int len);
+ int num_args;
+ struct mISDN_dsp_element_arg
+ *args;
+};
+
+extern int mISDN_dsp_element_register(struct mISDN_dsp_element *elem);
+extern void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem);
+
+struct dsp_features {
+ int hfc_id; /* unique id to identify the chip (or -1) */
+ int hfc_dtmf; /* set if HFCmulti card supports dtmf */
+ int hfc_loops; /* set if card supports tone loops */
+ int hfc_echocanhw; /* set if card supports echocancelation*/
+ int pcm_id; /* unique id to identify the pcm bus (or -1) */
+ int pcm_slots; /* number of slots on the pcm bus */
+ int pcm_banks; /* number of IO banks of pcm bus */
+ int unclocked; /* data is not clocked (has jitter/loss) */
+ int unordered; /* data is unordered (packets have index) */
+};
+
+#endif
+
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Basic declarations for the mISDN HW channels
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef MISDNHW_H
+#define MISDNHW_H
+#include <linux/mISDNif.h>
+#include <linux/timer.h>
+
+/*
+ * HW DEBUG 0xHHHHGGGG
+ * H - hardware driver specific bits
+ * G - for all drivers
+ */
+
+#define DEBUG_HW 0x00000001
+#define DEBUG_HW_OPEN 0x00000002
+#define DEBUG_HW_DCHANNEL 0x00000100
+#define DEBUG_HW_DFIFO 0x00000200
+#define DEBUG_HW_BCHANNEL 0x00001000
+#define DEBUG_HW_BFIFO 0x00002000
+
+#define MAX_DFRAME_LEN_L1 300
+#define MAX_MON_FRAME 32
+#define MAX_LOG_SPACE 2048
+#define MISDN_COPY_SIZE 32
+
+/* channel->Flags bit field */
+#define FLG_TX_BUSY 0 /* tx_buf in use */
+#define FLG_TX_NEXT 1 /* next_skb in use */
+#define FLG_L1_BUSY 2 /* L1 is permanent busy */
+#define FLG_L2_ACTIVATED 3 /* activated from L2 */
+#define FLG_OPEN 5 /* channel is in use */
+#define FLG_ACTIVE 6 /* channel is activated */
+#define FLG_BUSY_TIMER 7
+/* channel type */
+#define FLG_DCHANNEL 8 /* channel is D-channel */
+#define FLG_BCHANNEL 9 /* channel is B-channel */
+#define FLG_ECHANNEL 10 /* channel is E-channel */
+#define FLG_TRANSPARENT 12 /* channel use transparent data */
+#define FLG_HDLC 13 /* channel use hdlc data */
+#define FLG_L2DATA 14 /* channel use L2 DATA primitivs */
+#define FLG_ORIGIN 15 /* channel is on origin site */
+/* channel specific stuff */
+/* arcofi specific */
+#define FLG_ARCOFI_TIMER 16
+#define FLG_ARCOFI_ERROR 17
+/* isar specific */
+#define FLG_INITIALIZED 16
+#define FLG_DLEETX 17
+#define FLG_LASTDLE 18
+#define FLG_FIRST 19
+#define FLG_LASTDATA 20
+#define FLG_NMD_DATA 21
+#define FLG_FTI_RUN 22
+#define FLG_LL_OK 23
+#define FLG_LL_CONN 24
+#define FLG_DTMFSEND 25
+
+/* workq events */
+#define FLG_RECVQUEUE 30
+#define FLG_PHCHANGE 31
+
+#define schedule_event(s, ev) do { \
+ test_and_set_bit(ev, &((s)->Flags)); \
+ schedule_work(&((s)->workq)); \
+ } while (0)
+
+struct dchannel {
+ struct mISDNdevice dev;
+ u_long Flags;
+ struct work_struct workq;
+ void (*phfunc) (struct dchannel *);
+ u_int state;
+ void *l1;
+ /* HW access */
+ u_char (*read_reg) (void *, u_char);
+ void (*write_reg) (void *, u_char, u_char);
+ void (*read_fifo) (void *, u_char *, int);
+ void (*write_fifo) (void *, u_char *, int);
+ void *hw;
+ int slot; /* multiport card channel slot */
+ struct timer_list timer;
+ /* receive data */
+ struct sk_buff *rx_skb;
+ int maxlen;
+ /* send data */
+ struct sk_buff_head squeue;
+ struct sk_buff_head rqueue;
+ struct sk_buff *tx_skb;
+ int tx_idx;
+ int debug;
+ /* statistics */
+ int err_crc;
+ int err_tx;
+ int err_rx;
+};
+
+typedef int (dchannel_l1callback)(struct dchannel *, u_int);
+extern int create_l1(struct dchannel *, dchannel_l1callback *);
+
+/* private L1 commands */
+#define INFO0 0x8002
+#define INFO1 0x8102
+#define INFO2 0x8202
+#define INFO3_P8 0x8302
+#define INFO3_P10 0x8402
+#define INFO4_P8 0x8502
+#define INFO4_P10 0x8602
+#define LOSTFRAMING 0x8702
+#define ANYSIGNAL 0x8802
+#define HW_POWERDOWN 0x8902
+#define HW_RESET_REQ 0x8a02
+#define HW_POWERUP_REQ 0x8b02
+#define HW_DEACT_REQ 0x8c02
+#define HW_ACTIVATE_REQ 0x8e02
+#define HW_D_NOBLOCKED 0x8f02
+#define HW_RESET_IND 0x9002
+#define HW_POWERUP_IND 0x9102
+#define HW_DEACT_IND 0x9202
+#define HW_ACTIVATE_IND 0x9302
+#define HW_DEACT_CNF 0x9402
+#define HW_TESTLOOP 0x9502
+#define HW_TESTRX_RAW 0x9602
+#define HW_TESTRX_HDLC 0x9702
+#define HW_TESTRX_OFF 0x9802
+
+struct layer1;
+extern int l1_event(struct layer1 *, u_int);
+
+
+struct bchannel {
+ struct mISDNchannel ch;
+ int nr;
+ u_long Flags;
+ struct work_struct workq;
+ u_int state;
+ /* HW access */
+ u_char (*read_reg) (void *, u_char);
+ void (*write_reg) (void *, u_char, u_char);
+ void (*read_fifo) (void *, u_char *, int);
+ void (*write_fifo) (void *, u_char *, int);
+ void *hw;
+ int slot; /* multiport card channel slot */
+ struct timer_list timer;
+ /* receive data */
+ struct sk_buff *rx_skb;
+ int maxlen;
+ /* send data */
+ struct sk_buff *next_skb;
+ struct sk_buff *tx_skb;
+ struct sk_buff_head rqueue;
+ int rcount;
+ int tx_idx;
+ int debug;
+ /* statistics */
+ int err_crc;
+ int err_tx;
+ int err_rx;
+};
+
+extern int mISDN_initdchannel(struct dchannel *, int, void *);
+extern int mISDN_initbchannel(struct bchannel *, int);
+extern int mISDN_freedchannel(struct dchannel *);
+extern int mISDN_freebchannel(struct bchannel *);
+extern void queue_ch_frame(struct mISDNchannel *, u_int,
+ int, struct sk_buff *);
+extern int dchannel_senddata(struct dchannel *, struct sk_buff *);
+extern int bchannel_senddata(struct bchannel *, struct sk_buff *);
+extern void recv_Dchannel(struct dchannel *);
+extern void recv_Bchannel(struct bchannel *);
+extern void recv_Dchannel_skb(struct dchannel *, struct sk_buff *);
+extern void recv_Bchannel_skb(struct bchannel *, struct sk_buff *);
+extern void confirm_Bsend(struct bchannel *bch);
+extern int get_next_bframe(struct bchannel *);
+extern int get_next_dframe(struct dchannel *);
+
+#endif
--- /dev/null
+/*
+ *
+ * Author Karsten Keil <kkeil@novell.com>
+ *
+ * Copyright 2008 by Karsten Keil <kkeil@novell.com>
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU LESSER GENERAL PUBLIC LICENSE for more details.
+ *
+ */
+
+#ifndef mISDNIF_H
+#define mISDNIF_H
+
+#include <stdarg.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+
+/*
+ * ABI Version 32 bit
+ *
+ * <8 bit> Major version
+ * - changed if any interface become backwards incompatible
+ *
+ * <8 bit> Minor version
+ * - changed if any interface is extended but backwards compatible
+ *
+ * <16 bit> Release number
+ * - should be incremented on every checkin
+ */
+#define MISDN_MAJOR_VERSION 1
+#define MISDN_MINOR_VERSION 0
+#define MISDN_RELEASE 18
+
+/* primitives for information exchange
+ * generell format
+ * <16 bit 0 >
+ * <8 bit command>
+ * BIT 8 = 1 LAYER private
+ * BIT 7 = 1 answer
+ * BIT 6 = 1 DATA
+ * <8 bit target layer mask>
+ *
+ * Layer = 00 is reserved for general commands
+ Layer = 01 L2 -> HW
+ Layer = 02 HW -> L2
+ Layer = 04 L3 -> L2
+ Layer = 08 L2 -> L3
+ * Layer = FF is reserved for broadcast commands
+ */
+
+#define MISDN_CMDMASK 0xff00
+#define MISDN_LAYERMASK 0x00ff
+
+/* generell commands */
+#define OPEN_CHANNEL 0x0100
+#define CLOSE_CHANNEL 0x0200
+#define CONTROL_CHANNEL 0x0300
+#define CHECK_DATA 0x0400
+
+/* layer 2 -> layer 1 */
+#define PH_ACTIVATE_REQ 0x0101
+#define PH_DEACTIVATE_REQ 0x0201
+#define PH_DATA_REQ 0x2001
+#define MPH_ACTIVATE_REQ 0x0501
+#define MPH_DEACTIVATE_REQ 0x0601
+#define MPH_INFORMATION_REQ 0x0701
+#define PH_CONTROL_REQ 0x0801
+
+/* layer 1 -> layer 2 */
+#define PH_ACTIVATE_IND 0x0102
+#define PH_ACTIVATE_CNF 0x4102
+#define PH_DEACTIVATE_IND 0x0202
+#define PH_DEACTIVATE_CNF 0x4202
+#define PH_DATA_IND 0x2002
+#define MPH_ACTIVATE_IND 0x0502
+#define MPH_DEACTIVATE_IND 0x0602
+#define MPH_INFORMATION_IND 0x0702
+#define PH_DATA_CNF 0x6002
+#define PH_CONTROL_IND 0x0802
+#define PH_CONTROL_CNF 0x4802
+
+/* layer 3 -> layer 2 */
+#define DL_ESTABLISH_REQ 0x1004
+#define DL_RELEASE_REQ 0x1104
+#define DL_DATA_REQ 0x3004
+#define DL_UNITDATA_REQ 0x3104
+#define DL_INFORMATION_REQ 0x0004
+
+/* layer 2 -> layer 3 */
+#define DL_ESTABLISH_IND 0x1008
+#define DL_ESTABLISH_CNF 0x5008
+#define DL_RELEASE_IND 0x1108
+#define DL_RELEASE_CNF 0x5108
+#define DL_DATA_IND 0x3008
+#define DL_UNITDATA_IND 0x3108
+#define DL_INFORMATION_IND 0x0008
+
+/* intern layer 2 managment */
+#define MDL_ASSIGN_REQ 0x1804
+#define MDL_ASSIGN_IND 0x1904
+#define MDL_REMOVE_REQ 0x1A04
+#define MDL_REMOVE_IND 0x1B04
+#define MDL_STATUS_UP_IND 0x1C04
+#define MDL_STATUS_DOWN_IND 0x1D04
+#define MDL_STATUS_UI_IND 0x1E04
+#define MDL_ERROR_IND 0x1F04
+#define MDL_ERROR_RSP 0x5F04
+
+/* DL_INFORMATION_IND types */
+#define DL_INFO_L2_CONNECT 0x0001
+#define DL_INFO_L2_REMOVED 0x0002
+
+/* PH_CONTROL types */
+/* TOUCH TONE IS 0x20XX XX "0"..."9", "A","B","C","D","*","#" */
+#define DTMF_TONE_VAL 0x2000
+#define DTMF_TONE_MASK 0x007F
+#define DTMF_TONE_START 0x2100
+#define DTMF_TONE_STOP 0x2200
+#define DTMF_HFC_COEF 0x4000
+#define DSP_CONF_JOIN 0x2403
+#define DSP_CONF_SPLIT 0x2404
+#define DSP_RECEIVE_OFF 0x2405
+#define DSP_RECEIVE_ON 0x2406
+#define DSP_ECHO_ON 0x2407
+#define DSP_ECHO_OFF 0x2408
+#define DSP_MIX_ON 0x2409
+#define DSP_MIX_OFF 0x240a
+#define DSP_DELAY 0x240b
+#define DSP_JITTER 0x240c
+#define DSP_TXDATA_ON 0x240d
+#define DSP_TXDATA_OFF 0x240e
+#define DSP_TX_DEJITTER 0x240f
+#define DSP_TX_DEJ_OFF 0x2410
+#define DSP_TONE_PATT_ON 0x2411
+#define DSP_TONE_PATT_OFF 0x2412
+#define DSP_VOL_CHANGE_TX 0x2413
+#define DSP_VOL_CHANGE_RX 0x2414
+#define DSP_BF_ENABLE_KEY 0x2415
+#define DSP_BF_DISABLE 0x2416
+#define DSP_BF_ACCEPT 0x2416
+#define DSP_BF_REJECT 0x2417
+#define DSP_PIPELINE_CFG 0x2418
+#define HFC_VOL_CHANGE_TX 0x2601
+#define HFC_VOL_CHANGE_RX 0x2602
+#define HFC_SPL_LOOP_ON 0x2603
+#define HFC_SPL_LOOP_OFF 0x2604
+
+/* DSP_TONE_PATT_ON parameter */
+#define TONE_OFF 0x0000
+#define TONE_GERMAN_DIALTONE 0x0001
+#define TONE_GERMAN_OLDDIALTONE 0x0002
+#define TONE_AMERICAN_DIALTONE 0x0003
+#define TONE_GERMAN_DIALPBX 0x0004
+#define TONE_GERMAN_OLDDIALPBX 0x0005
+#define TONE_AMERICAN_DIALPBX 0x0006
+#define TONE_GERMAN_RINGING 0x0007
+#define TONE_GERMAN_OLDRINGING 0x0008
+#define TONE_AMERICAN_RINGPBX 0x000b
+#define TONE_GERMAN_RINGPBX 0x000c
+#define TONE_GERMAN_OLDRINGPBX 0x000d
+#define TONE_AMERICAN_RINGING 0x000e
+#define TONE_GERMAN_BUSY 0x000f
+#define TONE_GERMAN_OLDBUSY 0x0010
+#define TONE_AMERICAN_BUSY 0x0011
+#define TONE_GERMAN_HANGUP 0x0012
+#define TONE_GERMAN_OLDHANGUP 0x0013
+#define TONE_AMERICAN_HANGUP 0x0014
+#define TONE_SPECIAL_INFO 0x0015
+#define TONE_GERMAN_GASSENBESETZT 0x0016
+#define TONE_GERMAN_AUFSCHALTTON 0x0016
+
+/* MPH_INFORMATION_IND */
+#define L1_SIGNAL_LOS_OFF 0x0010
+#define L1_SIGNAL_LOS_ON 0x0011
+#define L1_SIGNAL_AIS_OFF 0x0012
+#define L1_SIGNAL_AIS_ON 0x0013
+#define L1_SIGNAL_RDI_OFF 0x0014
+#define L1_SIGNAL_RDI_ON 0x0015
+#define L1_SIGNAL_SLIP_RX 0x0020
+#define L1_SIGNAL_SLIP_TX 0x0021
+
+/*
+ * protocol ids
+ * D channel 1-31
+ * B channel 33 - 63
+ */
+
+#define ISDN_P_NONE 0
+#define ISDN_P_BASE 0
+#define ISDN_P_TE_S0 0x01
+#define ISDN_P_NT_S0 0x02
+#define ISDN_P_TE_E1 0x03
+#define ISDN_P_NT_E1 0x04
+#define ISDN_P_LAPD_TE 0x10
+#define ISDN_P_LAPD_NT 0x11
+
+#define ISDN_P_B_MASK 0x1f
+#define ISDN_P_B_START 0x20
+
+#define ISDN_P_B_RAW 0x21
+#define ISDN_P_B_HDLC 0x22
+#define ISDN_P_B_X75SLP 0x23
+#define ISDN_P_B_L2DTMF 0x24
+#define ISDN_P_B_L2DSP 0x25
+#define ISDN_P_B_L2DSPHDLC 0x26
+
+#define OPTION_L2_PMX 1
+#define OPTION_L2_PTP 2
+#define OPTION_L2_FIXEDTEI 3
+#define OPTION_L2_CLEANUP 4
+
+/* should be in sync with linux/kobject.h:KOBJ_NAME_LEN */
+#define MISDN_MAX_IDLEN 20
+
+struct mISDNhead {
+ unsigned int prim;
+ unsigned int id;
+} __attribute__((packed));
+
+#define MISDN_HEADER_LEN sizeof(struct mISDNhead)
+#define MAX_DATA_SIZE 2048
+#define MAX_DATA_MEM (MAX_DATA_SIZE + MISDN_HEADER_LEN)
+#define MAX_DFRAME_LEN 260
+
+#define MISDN_ID_ADDR_MASK 0xFFFF
+#define MISDN_ID_TEI_MASK 0xFF00
+#define MISDN_ID_SAPI_MASK 0x00FF
+#define MISDN_ID_TEI_ANY 0x7F00
+
+#define MISDN_ID_ANY 0xFFFF
+#define MISDN_ID_NONE 0xFFFE
+
+#define GROUP_TEI 127
+#define TEI_SAPI 63
+#define CTRL_SAPI 0
+
+#define MISDN_CHMAP_SIZE 4
+
+#define SOL_MISDN 0
+
+struct sockaddr_mISDN {
+ sa_family_t family;
+ unsigned char dev;
+ unsigned char channel;
+ unsigned char sapi;
+ unsigned char tei;
+};
+
+/* timer device ioctl */
+#define IMADDTIMER _IOR('I', 64, int)
+#define IMDELTIMER _IOR('I', 65, int)
+/* socket ioctls */
+#define IMGETVERSION _IOR('I', 66, int)
+#define IMGETCOUNT _IOR('I', 67, int)
+#define IMGETDEVINFO _IOR('I', 68, int)
+#define IMCTRLREQ _IOR('I', 69, int)
+#define IMCLEAR_L2 _IOR('I', 70, int)
+
+struct mISDNversion {
+ unsigned char major;
+ unsigned char minor;
+ unsigned short release;
+};
+
+struct mISDN_devinfo {
+ u_int id;
+ u_int Dprotocols;
+ u_int Bprotocols;
+ u_int protocol;
+ u_long channelmap[MISDN_CHMAP_SIZE];
+ u_int nrbchan;
+ char name[MISDN_MAX_IDLEN];
+};
+
+/* CONTROL_CHANNEL parameters */
+#define MISDN_CTRL_GETOP 0x0000
+#define MISDN_CTRL_LOOP 0x0001
+#define MISDN_CTRL_CONNECT 0x0002
+#define MISDN_CTRL_DISCONNECT 0x0004
+#define MISDN_CTRL_PCMCONNECT 0x0010
+#define MISDN_CTRL_PCMDISCONNECT 0x0020
+#define MISDN_CTRL_SETPEER 0x0040
+#define MISDN_CTRL_UNSETPEER 0x0080
+#define MISDN_CTRL_RX_OFF 0x0100
+#define MISDN_CTRL_HW_FEATURES_OP 0x2000
+#define MISDN_CTRL_HW_FEATURES 0x2001
+#define MISDN_CTRL_HFC_OP 0x4000
+#define MISDN_CTRL_HFC_PCM_CONN 0x4001
+#define MISDN_CTRL_HFC_PCM_DISC 0x4002
+#define MISDN_CTRL_HFC_CONF_JOIN 0x4003
+#define MISDN_CTRL_HFC_CONF_SPLIT 0x4004
+#define MISDN_CTRL_HFC_RECEIVE_OFF 0x4005
+#define MISDN_CTRL_HFC_RECEIVE_ON 0x4006
+#define MISDN_CTRL_HFC_ECHOCAN_ON 0x4007
+#define MISDN_CTRL_HFC_ECHOCAN_OFF 0x4008
+
+
+/* socket options */
+#define MISDN_TIME_STAMP 0x0001
+
+struct mISDN_ctrl_req {
+ int op;
+ int channel;
+ int p1;
+ int p2;
+};
+
+/* muxer options */
+#define MISDN_OPT_ALL 1
+#define MISDN_OPT_TEIMGR 2
+
+#ifdef __KERNEL__
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/net.h>
+#include <net/sock.h>
+#include <linux/completion.h>
+
+#define DEBUG_CORE 0x000000ff
+#define DEBUG_CORE_FUNC 0x00000002
+#define DEBUG_SOCKET 0x00000004
+#define DEBUG_MANAGER 0x00000008
+#define DEBUG_SEND_ERR 0x00000010
+#define DEBUG_MSG_THREAD 0x00000020
+#define DEBUG_QUEUE_FUNC 0x00000040
+#define DEBUG_L1 0x0000ff00
+#define DEBUG_L1_FSM 0x00000200
+#define DEBUG_L2 0x00ff0000
+#define DEBUG_L2_FSM 0x00020000
+#define DEBUG_L2_CTRL 0x00040000
+#define DEBUG_L2_RECV 0x00080000
+#define DEBUG_L2_TEI 0x00100000
+#define DEBUG_L2_TEIFSM 0x00200000
+#define DEBUG_TIMER 0x01000000
+
+#define mISDN_HEAD_P(s) ((struct mISDNhead *)&s->cb[0])
+#define mISDN_HEAD_PRIM(s) (((struct mISDNhead *)&s->cb[0])->prim)
+#define mISDN_HEAD_ID(s) (((struct mISDNhead *)&s->cb[0])->id)
+
+/* socket states */
+#define MISDN_OPEN 1
+#define MISDN_BOUND 2
+#define MISDN_CLOSED 3
+
+struct mISDNchannel;
+struct mISDNdevice;
+struct mISDNstack;
+
+struct channel_req {
+ u_int protocol;
+ struct sockaddr_mISDN adr;
+ struct mISDNchannel *ch;
+};
+
+typedef int (ctrl_func_t)(struct mISDNchannel *, u_int, void *);
+typedef int (send_func_t)(struct mISDNchannel *, struct sk_buff *);
+typedef int (create_func_t)(struct channel_req *);
+
+struct Bprotocol {
+ struct list_head list;
+ char *name;
+ u_int Bprotocols;
+ create_func_t *create;
+};
+
+struct mISDNchannel {
+ struct list_head list;
+ u_int protocol;
+ u_int nr;
+ u_long opt;
+ u_int addr;
+ struct mISDNstack *st;
+ struct mISDNchannel *peer;
+ send_func_t *send;
+ send_func_t *recv;
+ ctrl_func_t *ctrl;
+};
+
+struct mISDN_sock_list {
+ struct hlist_head head;
+ rwlock_t lock;
+};
+
+struct mISDN_sock {
+ struct sock sk;
+ struct mISDNchannel ch;
+ u_int cmask;
+ struct mISDNdevice *dev;
+};
+
+
+
+struct mISDNdevice {
+ struct mISDNchannel D;
+ u_int id;
+ char name[MISDN_MAX_IDLEN];
+ u_int Dprotocols;
+ u_int Bprotocols;
+ u_int nrbchan;
+ u_long channelmap[MISDN_CHMAP_SIZE];
+ struct list_head bchannels;
+ struct mISDNchannel *teimgr;
+ struct device dev;
+};
+
+struct mISDNstack {
+ u_long status;
+ struct mISDNdevice *dev;
+ struct task_struct *thread;
+ struct completion *notify;
+ wait_queue_head_t workq;
+ struct sk_buff_head msgq;
+ struct list_head layer2;
+ struct mISDNchannel *layer1;
+ struct mISDNchannel own;
+ struct mutex lmutex; /* protect lists */
+ struct mISDN_sock_list l1sock;
+#ifdef MISDN_MSG_STATS
+ u_int msg_cnt;
+ u_int sleep_cnt;
+ u_int stopped_cnt;
+#endif
+};
+
+/* global alloc/queue dunctions */
+
+static inline struct sk_buff *
+mI_alloc_skb(unsigned int len, gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+
+ skb = alloc_skb(len + MISDN_HEADER_LEN, gfp_mask);
+ if (likely(skb))
+ skb_reserve(skb, MISDN_HEADER_LEN);
+ return skb;
+}
+
+static inline struct sk_buff *
+_alloc_mISDN_skb(u_int prim, u_int id, u_int len, void *dp, gfp_t gfp_mask)
+{
+ struct sk_buff *skb = mI_alloc_skb(len, gfp_mask);
+ struct mISDNhead *hh;
+
+ if (!skb)
+ return NULL;
+ if (len)
+ memcpy(skb_put(skb, len), dp, len);
+ hh = mISDN_HEAD_P(skb);
+ hh->prim = prim;
+ hh->id = id;
+ return skb;
+}
+
+static inline void
+_queue_data(struct mISDNchannel *ch, u_int prim,
+ u_int id, u_int len, void *dp, gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+
+ if (!ch->peer)
+ return;
+ skb = _alloc_mISDN_skb(prim, id, len, dp, gfp_mask);
+ if (!skb)
+ return;
+ if (ch->recv(ch->peer, skb))
+ dev_kfree_skb(skb);
+}
+
+/* global register/unregister functions */
+
+extern int mISDN_register_device(struct mISDNdevice *, char *name);
+extern void mISDN_unregister_device(struct mISDNdevice *);
+extern int mISDN_register_Bprotocol(struct Bprotocol *);
+extern void mISDN_unregister_Bprotocol(struct Bprotocol *);
+
+extern void set_channel_address(struct mISDNchannel *, u_int, u_int);
+
+#endif /* __KERNEL__ */
+#endif /* mISDNIF_H */
#define PCI_DEVICE_ID_MOXA_C320 0x3200
#define PCI_VENDOR_ID_CCD 0x1397
+#define PCI_DEVICE_ID_CCD_HFC4S 0x08B4
+#define PCI_SUBDEVICE_ID_CCD_PMX2S 0x1234
+#define PCI_DEVICE_ID_CCD_HFC8S 0x16B8
#define PCI_DEVICE_ID_CCD_2BD0 0x2bd0
+#define PCI_DEVICE_ID_CCD_HFCE1 0x30B1
+#define PCI_SUBDEVICE_ID_CCD_SPD4S 0x3136
+#define PCI_SUBDEVICE_ID_CCD_SPDE1 0x3137
#define PCI_DEVICE_ID_CCD_B000 0xb000
#define PCI_DEVICE_ID_CCD_B006 0xb006
#define PCI_DEVICE_ID_CCD_B007 0xb007
#define PCI_DEVICE_ID_CCD_B00B 0xb00b
#define PCI_DEVICE_ID_CCD_B00C 0xb00c
#define PCI_DEVICE_ID_CCD_B100 0xb100
+#define PCI_SUBDEVICE_ID_CCD_IOB4ST 0xB520
+#define PCI_SUBDEVICE_ID_CCD_IOB8STR 0xB521
+#define PCI_SUBDEVICE_ID_CCD_IOB8ST 0xB522
+#define PCI_SUBDEVICE_ID_CCD_IOB1E1 0xB523
+#define PCI_SUBDEVICE_ID_CCD_SWYX4S 0xB540
+#define PCI_SUBDEVICE_ID_CCD_JH4S20 0xB550
+#define PCI_SUBDEVICE_ID_CCD_IOB8ST_1 0xB552
+#define PCI_SUBDEVICE_ID_CCD_BN4S 0xB560
+#define PCI_SUBDEVICE_ID_CCD_BN8S 0xB562
+#define PCI_SUBDEVICE_ID_CCD_BNE1 0xB563
+#define PCI_SUBDEVICE_ID_CCD_BNE1D 0xB564
+#define PCI_SUBDEVICE_ID_CCD_BNE1DP 0xB565
+#define PCI_SUBDEVICE_ID_CCD_BN2S 0xB566
+#define PCI_SUBDEVICE_ID_CCD_BN1SM 0xB567
+#define PCI_SUBDEVICE_ID_CCD_BN4SM 0xB568
+#define PCI_SUBDEVICE_ID_CCD_BN2SM 0xB569
+#define PCI_SUBDEVICE_ID_CCD_BNE1M 0xB56A
+#define PCI_SUBDEVICE_ID_CCD_BN8SP 0xB56B
+#define PCI_SUBDEVICE_ID_CCD_HFC4S 0xB620
+#define PCI_SUBDEVICE_ID_CCD_HFC8S 0xB622
#define PCI_DEVICE_ID_CCD_B700 0xb700
#define PCI_DEVICE_ID_CCD_B701 0xb701
+#define PCI_SUBDEVICE_ID_CCD_HFCE1 0xC523
+#define PCI_SUBDEVICE_ID_CCD_OV2S 0xE884
+#define PCI_SUBDEVICE_ID_CCD_OV4S 0xE888
+#define PCI_SUBDEVICE_ID_CCD_OV8S 0xE998
#define PCI_VENDOR_ID_EXAR 0x13a8
#define PCI_DEVICE_ID_EXAR_XR17C152 0x0152
#define PCI_VENDOR_ID_3COM_2 0xa727
+#define PCI_VENDOR_ID_DIGIUM 0xd161
+#define PCI_DEVICE_ID_DIGIUM_HFC4S 0xb410
+
#define PCI_SUBVENDOR_ID_EXSYS 0xd84d
#define PCI_SUBDEVICE_ID_EXSYS_4014 0x4014
#define PCI_SUBDEVICE_ID_EXSYS_4055 0x4055
} \
} while(0)
-#define BUG_TRAP(x) do { \
- if (unlikely(!(x))) { \
- printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \
- #x, __FILE__ , __LINE__); \
- } \
-} while(0)
-
static inline u32 rtm_get_table(struct rtattr **rta, u8 table)
{
return RTA_GET_U32(rta[RTA_TABLE-1]);
/*
* Common kmalloc functions provided by all allocators
*/
+void * __must_check __krealloc(const void *, size_t, gfp_t);
void * __must_check krealloc(const void *, size_t, gfp_t);
void kfree(const void *);
size_t ksize(const void *);
#define AF_BLUETOOTH 31 /* Bluetooth sockets */
#define AF_IUCV 32 /* IUCV sockets */
#define AF_RXRPC 33 /* RxRPC sockets */
-#define AF_MAX 34 /* For now.. */
+#define AF_ISDN 34 /* mISDN sockets */
+#define AF_MAX 35 /* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
#define PF_BLUETOOTH AF_BLUETOOTH
#define PF_IUCV AF_IUCV
#define PF_RXRPC AF_RXRPC
+#define PF_ISDN AF_ISDN
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
+#include <linux/bug.h>
#include <net/sock.h>
{
struct request_sock *req = queue->rskq_accept_head;
- BUG_TRAP(req != NULL);
+ WARN_ON(req == NULL);
queue->rskq_accept_head = req->dl_next;
if (queue->rskq_accept_head == NULL)
struct request_sock *req = reqsk_queue_remove(queue);
struct sock *child = req->sk;
- BUG_TRAP(child != NULL);
+ WARN_ON(child == NULL);
sk_acceptq_removed(parent);
__reqsk_free(req);
#include <linux/string.h>
#include <linux/module.h>
#include <linux/err.h>
+#include <linux/sched.h>
#include <asm/uaccess.h>
/**
EXPORT_SYMBOL(kmemdup);
/**
- * krealloc - reallocate memory. The contents will remain unchanged.
+ * __krealloc - like krealloc() but don't free @p.
* @p: object to reallocate memory for.
* @new_size: how many bytes of memory are required.
* @flags: the type of memory to allocate.
*
- * The contents of the object pointed to are preserved up to the
- * lesser of the new and old sizes. If @p is %NULL, krealloc()
- * behaves exactly like kmalloc(). If @size is 0 and @p is not a
- * %NULL pointer, the object pointed to is freed.
+ * This function is like krealloc() except it never frees the originally
+ * allocated buffer. Use this if you don't want to free the buffer immediately
+ * like, for example, with RCU.
*/
-void *krealloc(const void *p, size_t new_size, gfp_t flags)
+void *__krealloc(const void *p, size_t new_size, gfp_t flags)
{
void *ret;
size_t ks = 0;
- if (unlikely(!new_size)) {
- kfree(p);
+ if (unlikely(!new_size))
return ZERO_SIZE_PTR;
- }
if (p)
ks = ksize(p);
return (void *)p;
ret = kmalloc_track_caller(new_size, flags);
- if (ret && p) {
+ if (ret && p)
memcpy(ret, p, ks);
+
+ return ret;
+}
+EXPORT_SYMBOL(__krealloc);
+
+/**
+ * krealloc - reallocate memory. The contents will remain unchanged.
+ * @p: object to reallocate memory for.
+ * @new_size: how many bytes of memory are required.
+ * @flags: the type of memory to allocate.
+ *
+ * The contents of the object pointed to are preserved up to the
+ * lesser of the new and old sizes. If @p is %NULL, krealloc()
+ * behaves exactly like kmalloc(). If @size is 0 and @p is not a
+ * %NULL pointer, the object pointed to is freed.
+ */
+void *krealloc(const void *p, size_t new_size, gfp_t flags)
+{
+ void *ret;
+
+ if (unlikely(!new_size)) {
kfree(p);
+ return ZERO_SIZE_PTR;
}
+
+ ret = __krealloc(p, new_size, flags);
+ if (ret && p != ret)
+ kfree(p);
+
return ret;
}
EXPORT_SYMBOL(krealloc);
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
static int __init ebtable_filter_init(void)
{
- int i, j, ret;
+ int ret;
ret = ebt_register_table(&frame_filter);
if (ret < 0)
return ret;
- for (i = 0; i < ARRAY_SIZE(ebt_ops_filter); i++)
- if ((ret = nf_register_hook(&ebt_ops_filter[i])) < 0)
- goto cleanup;
- return ret;
-cleanup:
- for (j = 0; j < i; j++)
- nf_unregister_hook(&ebt_ops_filter[j]);
- ebt_unregister_table(&frame_filter);
+ ret = nf_register_hooks(ebt_ops_filter, ARRAY_SIZE(ebt_ops_filter));
+ if (ret < 0)
+ ebt_unregister_table(&frame_filter);
return ret;
}
static void __exit ebtable_filter_fini(void)
{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ebt_ops_filter); i++)
- nf_unregister_hook(&ebt_ops_filter[i]);
+ nf_unregister_hooks(ebt_ops_filter, ARRAY_SIZE(ebt_ops_filter));
ebt_unregister_table(&frame_filter);
}
static int __init ebtable_nat_init(void)
{
- int i, ret, j;
+ int ret;
ret = ebt_register_table(&frame_nat);
if (ret < 0)
return ret;
- for (i = 0; i < ARRAY_SIZE(ebt_ops_nat); i++)
- if ((ret = nf_register_hook(&ebt_ops_nat[i])) < 0)
- goto cleanup;
- return ret;
-cleanup:
- for (j = 0; j < i; j++)
- nf_unregister_hook(&ebt_ops_nat[j]);
- ebt_unregister_table(&frame_nat);
+ ret = nf_register_hooks(ebt_ops_nat, ARRAY_SIZE(ebt_ops_nat));
+ if (ret < 0)
+ ebt_unregister_table(&frame_nat);
return ret;
}
static void __exit ebtable_nat_fini(void)
{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ebt_ops_nat); i++)
- nf_unregister_hook(&ebt_ops_nat[i]);
+ nf_unregister_hooks(ebt_ops_nat, ARRAY_SIZE(ebt_ops_nat));
ebt_unregister_table(&frame_nat);
}
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list=list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
struct sk_buff *skb = clist;
clist = clist->next;
- BUG_TRAP(!atomic_read(&skb->users));
+ WARN_ON(atomic_read(&skb->users));
__kfree_skb(skb);
}
}
dev->uninit(dev);
/* Notifier chain MUST detach us from master device. */
- BUG_TRAP(!dev->master);
+ WARN_ON(dev->master);
/* Remove entries from kobject tree */
netdev_unregister_kobject(dev);
/* paranoia */
BUG_ON(atomic_read(&dev->refcnt));
- BUG_TRAP(!dev->ip_ptr);
- BUG_TRAP(!dev->ip6_ptr);
- BUG_TRAP(!dev->dn_ptr);
+ WARN_ON(dev->ip_ptr);
+ WARN_ON(dev->ip6_ptr);
+ WARN_ON(dev->dn_ptr);
if (dev->destructor)
dev->destructor(dev);
}
}
- BUG_TRAP(lopt->qlen == 0);
+ WARN_ON(lopt->qlen != 0);
if (lopt_size > PAGE_SIZE)
vfree(lopt);
else
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + frag->size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
__wsum csum2;
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
__skb_queue_purge(&sk->sk_error_queue);
/* Next, the write queue. */
- BUG_TRAP(skb_queue_empty(&sk->sk_write_queue));
+ WARN_ON(!skb_queue_empty(&sk->sk_write_queue));
/* Account for returned memory. */
sk_mem_reclaim(sk);
- BUG_TRAP(!sk->sk_wmem_queued);
- BUG_TRAP(!sk->sk_forward_alloc);
+ WARN_ON(sk->sk_wmem_queued);
+ WARN_ON(sk->sk_forward_alloc);
/* It is _impossible_ for the backlog to contain anything
* when we get here. All user references to this socket
#include <linux/dmaengine.h>
#include <linux/socket.h>
-#include <linux/rtnetlink.h> /* for BUG_TRAP */
#include <net/tcp.h>
#include <net/netdma.h>
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
copy = end - offset;
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
copy = end - offset;
{
s64 delta = dccp_delta_seqno(s1, s2);
- BUG_TRAP(delta >= 0);
+ WARN_ON(delta < 0);
return (u64)delta <= ndp + 1;
}
/* Stop the REQUEST timer */
inet_csk_clear_xmit_timer(sk, ICSK_TIME_RETRANS);
- BUG_TRAP(sk->sk_send_head != NULL);
+ WARN_ON(sk->sk_send_head == NULL);
__kfree_skb(sk->sk_send_head);
sk->sk_send_head = NULL;
* ICMPs are not backlogged, hence we cannot get an established
* socket here.
*/
- BUG_TRAP(!req->sk);
+ WARN_ON(req->sk);
if (seq != dccp_rsk(req)->dreq_iss) {
NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
* ICMPs are not backlogged, hence we cannot get an established
* socket here.
*/
- BUG_TRAP(req->sk == NULL);
+ WARN_ON(req->sk != NULL);
if (seq != dccp_rsk(req)->dreq_iss) {
NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
inet_csk_delack_init(sk);
__sk_dst_reset(sk);
- BUG_TRAP(!inet->num || icsk->icsk_bind_hash);
+ WARN_ON(inet->num && !icsk->icsk_bind_hash);
sk->sk_error_report(sk);
return err;
*/
local_bh_disable();
bh_lock_sock(sk);
- BUG_TRAP(!sock_owned_by_user(sk));
+ WARN_ON(sock_owned_by_user(sk));
/* Have we already been destroyed by a softirq or backlog? */
if (state != DCCP_CLOSED && sk->sk_state == DCCP_CLOSED)
* -- Acks in client-PARTOPEN state (sec. 8.1.5)
* -- CloseReq in server-CLOSEREQ state (sec. 8.3)
* -- Close in node-CLOSING state (sec. 8.3) */
- BUG_TRAP(sk->sk_send_head != NULL);
+ WARN_ON(sk->sk_send_head == NULL);
/*
* More than than 4MSL (8 minutes) has passed, a RESET(aborted) was
return;
}
- BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
- BUG_TRAP(!sk->sk_wmem_queued);
- BUG_TRAP(!sk->sk_forward_alloc);
+ WARN_ON(atomic_read(&sk->sk_rmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(sk->sk_wmem_queued);
+ WARN_ON(sk->sk_forward_alloc);
kfree(inet->opt);
dst_release(sk->sk_dst_cache);
answer_flags = answer->flags;
rcu_read_unlock();
- BUG_TRAP(answer_prot->slab != NULL);
+ WARN_ON(answer_prot->slab == NULL);
err = -ENOBUFS;
sk = sk_alloc(net, PF_INET, GFP_KERNEL, answer_prot);
lock_sock(sk2);
- BUG_TRAP((1 << sk2->sk_state) &
- (TCPF_ESTABLISHED | TCPF_CLOSE_WAIT | TCPF_CLOSE));
+ WARN_ON(!((1 << sk2->sk_state) &
+ (TCPF_ESTABLISHED | TCPF_CLOSE_WAIT | TCPF_CLOSE)));
sock_graft(sk2, newsock);
{
struct net_device *dev = idev->dev;
- BUG_TRAP(!idev->ifa_list);
- BUG_TRAP(!idev->mc_list);
+ WARN_ON(idev->ifa_list);
+ WARN_ON(idev->mc_list);
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "in_dev_finish_destroy: %p=%s\n",
idev, dev ? dev->name : "NIL");
}
ipv4_devconf_setall(in_dev);
if (ifa->ifa_dev != in_dev) {
- BUG_TRAP(!ifa->ifa_dev);
+ WARN_ON(ifa->ifa_dev);
in_dev_hold(in_dev);
ifa->ifa_dev = in_dev;
}
success:
if (!inet_csk(sk)->icsk_bind_hash)
inet_bind_hash(sk, tb, snum);
- BUG_TRAP(inet_csk(sk)->icsk_bind_hash == tb);
+ WARN_ON(inet_csk(sk)->icsk_bind_hash != tb);
ret = 0;
fail_unlock:
}
newsk = reqsk_queue_get_child(&icsk->icsk_accept_queue, sk);
- BUG_TRAP(newsk->sk_state != TCP_SYN_RECV);
+ WARN_ON(newsk->sk_state == TCP_SYN_RECV);
out:
release_sock(sk);
return newsk;
ireq->rmt_addr == raddr &&
ireq->loc_addr == laddr &&
AF_INET_FAMILY(req->rsk_ops->family)) {
- BUG_TRAP(!req->sk);
+ WARN_ON(req->sk);
*prevp = prev;
break;
}
*/
void inet_csk_destroy_sock(struct sock *sk)
{
- BUG_TRAP(sk->sk_state == TCP_CLOSE);
- BUG_TRAP(sock_flag(sk, SOCK_DEAD));
+ WARN_ON(sk->sk_state != TCP_CLOSE);
+ WARN_ON(!sock_flag(sk, SOCK_DEAD));
/* It cannot be in hash table! */
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
/* If it has not 0 inet_sk(sk)->num, it must be bound */
- BUG_TRAP(!inet_sk(sk)->num || inet_csk(sk)->icsk_bind_hash);
+ WARN_ON(inet_sk(sk)->num && !inet_csk(sk)->icsk_bind_hash);
sk->sk_prot->destroy(sk);
local_bh_disable();
bh_lock_sock(child);
- BUG_TRAP(!sock_owned_by_user(child));
+ WARN_ON(sock_owned_by_user(child));
sock_hold(child);
sk->sk_prot->disconnect(child, O_NONBLOCK);
sk_acceptq_removed(sk);
__reqsk_free(req);
}
- BUG_TRAP(!sk->sk_ack_backlog);
+ WARN_ON(sk->sk_ack_backlog);
}
EXPORT_SYMBOL_GPL(inet_csk_listen_stop);
struct sk_buff *fp;
struct netns_frags *nf;
- BUG_TRAP(q->last_in & INET_FRAG_COMPLETE);
- BUG_TRAP(del_timer(&q->timer) == 0);
+ WARN_ON(!(q->last_in & INET_FRAG_COMPLETE));
+ WARN_ON(del_timer(&q->timer) != 0);
/* Release all fragment data. */
fp = q->fragments;
inet->num = lport;
inet->sport = htons(lport);
sk->sk_hash = hash;
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
__sk_add_node(sk, &head->chain);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
write_unlock(lock);
rwlock_t *lock;
struct inet_ehash_bucket *head;
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
sk->sk_hash = inet_sk_ehashfn(sk);
head = inet_ehash_bucket(hashinfo, sk->sk_hash);
return;
}
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
lock = &hashinfo->lhash_lock;
*/
inet_bind_bucket_for_each(tb, node, &head->chain) {
if (tb->ib_net == net && tb->port == port) {
- BUG_TRAP(!hlist_empty(&tb->owners));
+ WARN_ON(hlist_empty(&tb->owners));
if (tb->fastreuse >= 0)
goto next_port;
if (!check_established(death_row, sk,
hashinfo->bhash_size)];
spin_lock(&bhead->lock);
tw->tw_tb = icsk->icsk_bind_hash;
- BUG_TRAP(icsk->icsk_bind_hash);
+ WARN_ON(!icsk->icsk_bind_hash);
inet_twsk_add_bind_node(tw, &tw->tw_tb->owners);
spin_unlock(&bhead->lock);
qp->q.fragments = head;
}
- BUG_TRAP(head != NULL);
- BUG_TRAP(FRAG_CB(head)->offset == 0);
+ WARN_ON(head == NULL);
+ WARN_ON(FRAG_CB(head)->offset != 0);
/* Allocate a new buffer for the datagram. */
ihlen = ip_hdrlen(head);
__skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
- BUG_TRAP(newskb->dst);
+ WARN_ON(!newskb->dst);
netif_rx(newskb);
return 0;
}
};
/* The work comes in here from netfilter.c */
-static unsigned int arpt_hook(unsigned int hook,
- struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int (*okfn)(struct sk_buff *))
+static unsigned int arpt_in_hook(unsigned int hook,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ int (*okfn)(struct sk_buff *))
{
- return arpt_do_table(skb, hook, in, out, init_net.ipv4.arptable_filter);
+ return arpt_do_table(skb, hook, in, out,
+ dev_net(in)->ipv4.arptable_filter);
+}
+
+static unsigned int arpt_out_hook(unsigned int hook,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ int (*okfn)(struct sk_buff *))
+{
+ return arpt_do_table(skb, hook, in, out,
+ dev_net(out)->ipv4.arptable_filter);
+}
+
+static unsigned int arpt_forward_hook(unsigned int hook,
+ struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ int (*okfn)(struct sk_buff *))
+{
+ return arpt_do_table(skb, hook, in, out,
+ dev_net(in)->ipv4.arptable_filter);
}
static struct nf_hook_ops arpt_ops[] __read_mostly = {
{
- .hook = arpt_hook,
+ .hook = arpt_in_hook,
.owner = THIS_MODULE,
.pf = NF_ARP,
.hooknum = NF_ARP_IN,
.priority = NF_IP_PRI_FILTER,
},
{
- .hook = arpt_hook,
+ .hook = arpt_out_hook,
.owner = THIS_MODULE,
.pf = NF_ARP,
.hooknum = NF_ARP_OUT,
.priority = NF_IP_PRI_FILTER,
},
{
- .hook = arpt_hook,
+ .hook = arpt_forward_hook,
.owner = THIS_MODULE,
.pf = NF_ARP,
.hooknum = NF_ARP_FORWARD,
struct ipt_replace repl;
struct ipt_standard entries[3];
struct ipt_error term;
-} initial_table __initdata = {
+} initial_table __net_initdata = {
.repl = {
.name = "security",
.valid_hooks = SECURITY_VALID_HOOKS,
rth->fl.iif != 0 ||
dst_metric_locked(&rth->u.dst, RTAX_MTU) ||
!net_eq(dev_net(rth->u.dst.dev), net) ||
- !rt_is_expired(rth))
+ rt_is_expired(rth))
continue;
if (new_mtu < 68 || new_mtu >= old_mtu) {
ireq->rmt_port = th->source;
ireq->loc_addr = ip_hdr(skb)->daddr;
ireq->rmt_addr = ip_hdr(skb)->saddr;
+ ireq->ecn_ok = 0;
ireq->snd_wscale = tcp_opt.snd_wscale;
ireq->rcv_wscale = tcp_opt.rcv_wscale;
ireq->sack_ok = tcp_opt.sack_ok;
#if TCP_DEBUG
struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
- BUG_TRAP(!skb || before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq));
+ WARN_ON(skb && !before(tp->copied_seq, TCP_SKB_CB(skb)->end_seq));
#endif
if (inet_csk_ack_scheduled(sk)) {
goto found_ok_skb;
if (tcp_hdr(skb)->fin)
goto found_fin_ok;
- BUG_TRAP(flags & MSG_PEEK);
+ WARN_ON(!(flags & MSG_PEEK));
skb = skb->next;
} while (skb != (struct sk_buff *)&sk->sk_receive_queue);
tp->ucopy.len = len;
- BUG_TRAP(tp->copied_seq == tp->rcv_nxt ||
- (flags & (MSG_PEEK | MSG_TRUNC)));
+ WARN_ON(tp->copied_seq != tp->rcv_nxt &&
+ !(flags & (MSG_PEEK | MSG_TRUNC)));
/* Ugly... If prequeue is not empty, we have to
* process it before releasing socket, otherwise
*/
local_bh_disable();
bh_lock_sock(sk);
- BUG_TRAP(!sock_owned_by_user(sk));
+ WARN_ON(sock_owned_by_user(sk));
/* Have we already been destroyed by a softirq or backlog? */
if (state != TCP_CLOSE && sk->sk_state == TCP_CLOSE)
memset(&tp->rx_opt, 0, sizeof(tp->rx_opt));
__sk_dst_reset(sk);
- BUG_TRAP(!inet->num || icsk->icsk_bind_hash);
+ WARN_ON(inet->num && !icsk->icsk_bind_hash);
sk->sk_error_report(sk);
return err;
out:
#if FASTRETRANS_DEBUG > 0
- BUG_TRAP((int)tp->sacked_out >= 0);
- BUG_TRAP((int)tp->lost_out >= 0);
- BUG_TRAP((int)tp->retrans_out >= 0);
- BUG_TRAP((int)tcp_packets_in_flight(tp) >= 0);
+ WARN_ON((int)tp->sacked_out < 0);
+ WARN_ON((int)tp->lost_out < 0);
+ WARN_ON((int)tp->retrans_out < 0);
+ WARN_ON((int)tcp_packets_in_flight(tp) < 0);
#endif
return flag;
}
int err;
unsigned int mss;
- BUG_TRAP(packets <= tp->packets_out);
+ WARN_ON(packets > tp->packets_out);
if (tp->lost_skb_hint) {
skb = tp->lost_skb_hint;
cnt = tp->lost_cnt_hint;
/* E. Check state exit conditions. State can be terminated
* when high_seq is ACKed. */
if (icsk->icsk_ca_state == TCP_CA_Open) {
- BUG_TRAP(tp->retrans_out == 0);
+ WARN_ON(tp->retrans_out != 0);
tp->retrans_stamp = 0;
} else if (!before(tp->snd_una, tp->high_seq)) {
switch (icsk->icsk_ca_state) {
}
#if FASTRETRANS_DEBUG > 0
- BUG_TRAP((int)tp->sacked_out >= 0);
- BUG_TRAP((int)tp->lost_out >= 0);
- BUG_TRAP((int)tp->retrans_out >= 0);
+ WARN_ON((int)tp->sacked_out < 0);
+ WARN_ON((int)tp->lost_out < 0);
+ WARN_ON((int)tp->retrans_out < 0);
if (!tp->packets_out && tcp_is_sack(tp)) {
icsk = inet_csk(sk);
if (tp->lost_out) {
int i;
/* RCV.NXT must cover all the block! */
- BUG_TRAP(!before(tp->rcv_nxt, sp->end_seq));
+ WARN_ON(before(tp->rcv_nxt, sp->end_seq));
/* Zap this SACK, by moving forward any other SACKS. */
for (i=this_sack+1; i < num_sacks; i++)
/* ICMPs are not backlogged, hence we cannot get
an established socket here.
*/
- BUG_TRAP(!req->sk);
+ WARN_ON(req->sk);
if (seq != tcp_rsk(req)->snt_isn) {
NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
if (!tp->packets_out)
goto out;
- BUG_TRAP(!tcp_write_queue_empty(sk));
+ WARN_ON(tcp_write_queue_empty(sk));
if (!tp->snd_wnd && !sock_flag(sk, SOCK_DEAD) &&
!((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))) {
void in6_dev_finish_destroy(struct inet6_dev *idev)
{
struct net_device *dev = idev->dev;
- BUG_TRAP(idev->addr_list==NULL);
- BUG_TRAP(idev->mc_list==NULL);
+
+ WARN_ON(idev->addr_list != NULL);
+ WARN_ON(idev->mc_list != NULL);
+
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "in6_dev_finish_destroy: %s\n", dev ? dev->name : "NIL");
#endif
void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
{
- BUG_TRAP(ifp->if_next==NULL);
- BUG_TRAP(ifp->lst_next==NULL);
+ WARN_ON(ifp->if_next != NULL);
+ WARN_ON(ifp->lst_next != NULL);
+
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "inet6_ifa_finish_destroy\n");
#endif
answer_flags = answer->flags;
rcu_read_unlock();
- BUG_TRAP(answer_prot->slab != NULL);
+ WARN_ON(answer_prot->slab == NULL);
err = -ENOBUFS;
sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot);
ipv6_addr_equal(&treq->rmt_addr, raddr) &&
ipv6_addr_equal(&treq->loc_addr, laddr) &&
(!treq->iif || treq->iif == iif)) {
- BUG_TRAP(req->sk == NULL);
+ WARN_ON(req->sk != NULL);
*prevp = prev;
return req;
}
struct hlist_head *list;
rwlock_t *lock;
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
if (sk->sk_state == TCP_LISTEN) {
list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
* in hash table socket with a funny identity. */
inet->num = lport;
inet->sport = htons(lport);
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
__sk_add_node(sk, &head->chain);
sk->sk_hash = hash;
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
w->leaf = rt;
return 1;
}
- BUG_TRAP(res!=0);
+ WARN_ON(res == 0);
}
w->leaf = NULL;
return 0;
pn->leaf = fib6_find_prefix(info->nl_net, pn);
#if RT6_DEBUG >= 2
if (!pn->leaf) {
- BUG_TRAP(pn->leaf != NULL);
+ WARN_ON(pn->leaf == NULL);
pn->leaf = info->nl_net->ipv6.ip6_null_entry;
}
#endif
#ifdef CONFIG_IPV6_SUBTREES
if (src_len) {
- BUG_TRAP(saddr!=NULL);
+ WARN_ON(saddr == NULL);
if (fn && fn->subtree)
fn = fib6_locate_1(fn->subtree, saddr, src_len,
offsetof(struct rt6_info, rt6i_src));
RT6_TRACE("fixing tree: plen=%d iter=%d\n", fn->fn_bit, iter);
iter++;
- BUG_TRAP(!(fn->fn_flags&RTN_RTINFO));
- BUG_TRAP(!(fn->fn_flags&RTN_TL_ROOT));
- BUG_TRAP(fn->leaf==NULL);
+ WARN_ON(fn->fn_flags & RTN_RTINFO);
+ WARN_ON(fn->fn_flags & RTN_TL_ROOT);
+ WARN_ON(fn->leaf != NULL);
children = 0;
child = NULL;
fn->leaf = fib6_find_prefix(net, fn);
#if RT6_DEBUG >= 2
if (fn->leaf==NULL) {
- BUG_TRAP(fn->leaf);
+ WARN_ON(!fn->leaf);
fn->leaf = net->ipv6.ip6_null_entry;
}
#endif
pn = fn->parent;
#ifdef CONFIG_IPV6_SUBTREES
if (FIB6_SUBTREE(pn) == fn) {
- BUG_TRAP(fn->fn_flags&RTN_ROOT);
+ WARN_ON(!(fn->fn_flags & RTN_ROOT));
FIB6_SUBTREE(pn) = NULL;
nstate = FWS_L;
} else {
- BUG_TRAP(!(fn->fn_flags&RTN_ROOT));
+ WARN_ON(fn->fn_flags & RTN_ROOT);
#endif
if (pn->right == fn) pn->right = child;
else if (pn->left == fn) pn->left = child;
#if RT6_DEBUG >= 2
- else BUG_TRAP(0);
+ else
+ WARN_ON(1);
#endif
if (child)
child->parent = pn;
#if RT6_DEBUG >= 2
if (rt->u.dst.obsolete>0) {
- BUG_TRAP(fn==NULL);
+ WARN_ON(fn != NULL);
return -ENOENT;
}
#endif
if (fn == NULL || rt == net->ipv6.ip6_null_entry)
return -ENOENT;
- BUG_TRAP(fn->fn_flags&RTN_RTINFO);
+ WARN_ON(!(fn->fn_flags & RTN_RTINFO));
if (!(rt->rt6i_flags&RTF_CACHE)) {
struct fib6_node *pn = fn;
w->node = pn;
#ifdef CONFIG_IPV6_SUBTREES
if (FIB6_SUBTREE(pn) == fn) {
- BUG_TRAP(fn->fn_flags&RTN_ROOT);
+ WARN_ON(!(fn->fn_flags & RTN_ROOT));
w->state = FWS_L;
continue;
}
continue;
}
#if RT6_DEBUG >= 2
- BUG_TRAP(0);
+ WARN_ON(1);
#endif
}
}
}
return 0;
}
- BUG_TRAP(res==0);
+ WARN_ON(res != 0);
}
w->leaf = rt;
return 0;
__skb_pull(newskb, skb_network_offset(newskb));
newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY;
- BUG_TRAP(newskb->dst);
+ WARN_ON(!newskb->dst);
netif_rx(newskb);
return 0;
calc_padlen(sizeof(*dstopt), 6));
hao->type = IPV6_TLV_HAO;
+ BUILD_BUG_ON(sizeof(*hao) != 18);
hao->length = sizeof(*hao) - 2;
- BUG_TRAP(hao->length == 16);
len = ((char *)hao - (char *)dstopt) + sizeof(*hao);
memcpy(&iph->saddr, x->coaddr, sizeof(iph->saddr));
spin_unlock_bh(&x->lock);
- BUG_TRAP(len == x->props.header_len);
+ WARN_ON(len != x->props.header_len);
dstopt->hdrlen = (x->props.header_len >> 3) - 1;
return 0;
x->props.header_len = sizeof(struct ipv6_destopt_hdr) +
calc_padlen(sizeof(struct ipv6_destopt_hdr), 6) +
sizeof(struct ipv6_destopt_hao);
- BUG_TRAP(x->props.header_len == 24);
+ WARN_ON(x->props.header_len != 24);
return 0;
}
rt2->rt_hdr.segments_left = 1;
memset(&rt2->reserved, 0, sizeof(rt2->reserved));
- BUG_TRAP(rt2->rt_hdr.hdrlen == 2);
+ WARN_ON(rt2->rt_hdr.hdrlen != 2);
memcpy(&rt2->addr, &iph->daddr, sizeof(rt2->addr));
spin_lock_bh(&x->lock);
struct ip6t_replace repl;
struct ip6t_standard entries[3];
struct ip6t_error term;
-} initial_table __initdata = {
+} initial_table __net_initdata = {
.repl = {
.name = "security",
.valid_hooks = SECURITY_VALID_HOOKS,
fq_kill(fq);
- BUG_TRAP(head != NULL);
- BUG_TRAP(NFCT_FRAG6_CB(head)->offset == 0);
+ WARN_ON(head == NULL);
+ WARN_ON(NFCT_FRAG6_CB(head)->offset != 0);
/* Unfragmented part is taken from the first segment. */
payload_len = ((head->data - skb_network_header(head)) -
fq->q.fragments = head;
}
- BUG_TRAP(head != NULL);
- BUG_TRAP(FRAG6_CB(head)->offset == 0);
+ WARN_ON(head == NULL);
+ WARN_ON(FRAG6_CB(head)->offset != 0);
/* Unfragmented part is taken from the first segment. */
payload_len = ((head->data - skb_network_header(head)) -
req->expires = 0UL;
req->retrans = 0;
+ ireq->ecn_ok = 0;
ireq->snd_wscale = tcp_opt.snd_wscale;
ireq->rcv_wscale = tcp_opt.rcv_wscale;
ireq->sack_ok = tcp_opt.sack_ok;
/* ICMPs are not backlogged, hence we cannot get
* an established socket here.
*/
- BUG_TRAP(req->sk == NULL);
+ WARN_ON(req->sk != NULL);
if (seq != tcp_rsk(req)->snt_isn) {
NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
return;
}
- BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_rmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
atomic_dec(&pfkey_socks_nr);
}
newlen = newoff + t->len;
rcu_read_unlock();
- new = krealloc(ct->ext, newlen, gfp);
+ new = __krealloc(ct->ext, newlen, gfp);
if (!new)
return NULL;
ct->ext = new;
}
- ct->ext->offset[id] = newoff;
- ct->ext->len = newlen;
- memset((void *)ct->ext + newoff, 0, newlen - newoff);
- return (void *)ct->ext + newoff;
+ new->offset[id] = newoff;
+ new->len = newlen;
+ memset((void *)new + newoff, 0, newlen - newoff);
+ return (void *)new + newoff;
}
EXPORT_SYMBOL(__nf_ct_ext_add);
printk(KERN_ERR "Freeing alive netlink socket %p\n", sk);
return;
}
- BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
- BUG_TRAP(!nlk_sk(sk)->groups);
+
+ WARN_ON(atomic_read(&sk->sk_rmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(nlk_sk(sk)->groups);
}
/* This lock without WQ_FLAG_EXCLUSIVE is good on UP and it is _very_ bad on
static void packet_sock_destruct(struct sock *sk)
{
- BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_rmem_alloc));
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
if (!sock_flag(sk, SOCK_DEAD)) {
printk("Attempt to release alive packet socket: %p\n", sk);
rxrpc_purge_queue(&sk->sk_receive_queue);
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
- BUG_TRAP(sk_unhashed(sk));
- BUG_TRAP(!sk->sk_socket);
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(!sk_unhashed(sk));
+ WARN_ON(sk->sk_socket);
if (!sock_flag(sk, SOCK_DEAD)) {
printk("Attempt to release alive rxrpc socket: %p\n", sk);
return;
}
}
- BUG_TRAP(0);
+ WARN_ON(1);
}
EXPORT_SYMBOL(tcf_hash_destroy);
return;
}
}
- BUG_TRAP(0);
+ WARN_ON(1);
}
static const struct nla_policy police_policy[TCA_POLICE_MAX + 1] = {
}
}
}
- BUG_TRAP(0);
+ WARN_ON(1);
return 0;
}
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode **hn;
- BUG_TRAP(!ht->refcnt);
+ WARN_ON(ht->refcnt);
u32_clear_hnode(tp, ht);
}
}
- BUG_TRAP(0);
+ WARN_ON(1);
return -ENOENT;
}
struct tc_u_common *tp_c = tp->data;
struct tc_u_hnode *root_ht = xchg(&tp->root, NULL);
- BUG_TRAP(root_ht != NULL);
+ WARN_ON(root_ht == NULL);
if (root_ht && --root_ht->refcnt == 0)
u32_destroy_hnode(tp, root_ht);
while ((ht = tp_c->hlist) != NULL) {
tp_c->hlist = ht->next;
- BUG_TRAP(ht->refcnt == 0);
+ WARN_ON(ht->refcnt != 0);
kfree(ht);
}
this->tparent->children = NULL;
}
} else {
- BUG_TRAP(this->sibling == this);
+ WARN_ON(this->sibling != this);
}
}
{
struct cbq_sched_data *q = qdisc_priv(sch);
- BUG_TRAP(!cl->filters);
+ WARN_ON(cl->filters);
tcf_destroy_chain(&cl->filter_list);
qdisc_destroy(cl->q);
{
netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
shutdown_scheduler_queue(dev, &dev->rx_queue, NULL);
- BUG_TRAP(!timer_pending(&dev->watchdog_timer));
+ WARN_ON(timer_pending(&dev->watchdog_timer));
}
*/
static inline void htb_activate(struct htb_sched *q, struct htb_class *cl)
{
- BUG_TRAP(!cl->level && cl->un.leaf.q && cl->un.leaf.q->q.qlen);
+ WARN_ON(cl->level || !cl->un.leaf.q || !cl->un.leaf.q->q.qlen);
if (!cl->prio_activity) {
cl->prio_activity = 1 << (cl->un.leaf.aprio = cl->un.leaf.prio);
*/
static inline void htb_deactivate(struct htb_sched *q, struct htb_class *cl)
{
- BUG_TRAP(cl->prio_activity);
+ WARN_ON(!cl->prio_activity);
htb_deactivate_prios(q, cl);
cl->prio_activity = 0;
u32 *pid;
} stk[TC_HTB_MAXDEPTH], *sp = stk;
- BUG_TRAP(tree->rb_node);
+ WARN_ON(!tree->rb_node);
sp->root = tree->rb_node;
sp->pptr = pptr;
sp->pid = pid;
*sp->pptr = (*sp->pptr)->rb_left;
if (sp > stk) {
sp--;
- BUG_TRAP(*sp->pptr);
+ WARN_ON(!*sp->pptr);
if (!*sp->pptr)
return NULL;
htb_next_rb_node(sp->pptr);
sp->pid = cl->un.inner.last_ptr_id + prio;
}
}
- BUG_TRAP(0);
+ WARN_ON(1);
return NULL;
}
do {
next:
- BUG_TRAP(cl);
+ WARN_ON(!cl);
if (!cl)
return NULL;
{
struct htb_class *parent = cl->parent;
- BUG_TRAP(!cl->level && cl->un.leaf.q && !cl->prio_activity);
+ WARN_ON(cl->level || !cl->un.leaf.q || cl->prio_activity);
if (parent->cmode != HTB_CAN_SEND)
htb_safe_rb_erase(&parent->pq_node, q->wait_pq + parent->level);
static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
{
if (!cl->level) {
- BUG_TRAP(cl->un.leaf.q);
+ WARN_ON(!cl->un.leaf.q);
qdisc_destroy(cl->un.leaf.q);
}
gen_kill_estimator(&cl->bstats, &cl->rate_est);
opt.limit = q->limit;
opt.divisor = SFQ_HASH_DIVISOR;
- opt.flows = 0;
- if (q->tail != SFQ_DEPTH) {
- unsigned int i;
-
- for (i = 0; i < SFQ_HASH_DIVISOR; i++)
- if (q->ht[i] != SFQ_DEPTH)
- opt.flows++;
- }
+ opt.flows = q->limit;
NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
spin_unlock_bh(&sctp_assocs_id_lock);
}
- BUG_TRAP(!atomic_read(&asoc->rmem_alloc));
+ WARN_ON(atomic_read(&asoc->rmem_alloc));
if (asoc->base.malloced) {
kfree(asoc);
static void __unix_insert_socket(struct hlist_head *list, struct sock *sk)
{
- BUG_TRAP(sk_unhashed(sk));
+ WARN_ON(!sk_unhashed(sk));
sk_add_node(sk, list);
}
skb_queue_purge(&sk->sk_receive_queue);
- BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
- BUG_TRAP(sk_unhashed(sk));
- BUG_TRAP(!sk->sk_socket);
+ WARN_ON(atomic_read(&sk->sk_wmem_alloc));
+ WARN_ON(!sk_unhashed(sk));
+ WARN_ON(sk->sk_socket);
if (!sock_flag(sk, SOCK_DEAD)) {
printk("Attempt to release alive unix socket: %p\n", sk);
return;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + skb_shinfo(skb)->frags[i].size;
if ((copy = end - offset) > 0) {
for (; list; list = list->next) {
int end;
- BUG_TRAP(start <= offset + len);
+ WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/percpu.h>
-#include <linux/rtnetlink.h>
#include <linux/smp.h>
#include <linux/vmalloc.h>
#include <net/ip.h>
break;
}
- BUG_TRAP(pos);
+ WARN_ON(!pos);
if (--pos->users)
return;
void __xfrm_state_destroy(struct xfrm_state *x)
{
- BUG_TRAP(x->km.state == XFRM_STATE_DEAD);
+ WARN_ON(x->km.state != XFRM_STATE_DEAD);
spin_lock_bh(&xfrm_state_lock);
list_del(&x->all);
static int __init selinux_nf_ip_init(void)
{
int err = 0;
- u32 iter;
if (!selinux_enabled)
goto out;
printk(KERN_DEBUG "SELinux: Registering netfilter hooks\n");
- for (iter = 0; iter < ARRAY_SIZE(selinux_ipv4_ops); iter++) {
- err = nf_register_hook(&selinux_ipv4_ops[iter]);
- if (err)
- panic("SELinux: nf_register_hook for IPv4: error %d\n",
- err);
- }
+ err = nf_register_hooks(selinux_ipv4_ops, ARRAY_SIZE(selinux_ipv4_ops));
+ if (err)
+ panic("SELinux: nf_register_hooks for IPv4: error %d\n", err);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- for (iter = 0; iter < ARRAY_SIZE(selinux_ipv6_ops); iter++) {
- err = nf_register_hook(&selinux_ipv6_ops[iter]);
- if (err)
- panic("SELinux: nf_register_hook for IPv6: error %d\n",
- err);
- }
+ err = nf_register_hooks(selinux_ipv6_ops, ARRAY_SIZE(selinux_ipv6_ops));
+ if (err)
+ panic("SELinux: nf_register_hooks for IPv6: error %d\n", err);
#endif /* IPV6 */
out:
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
static void selinux_nf_ip_exit(void)
{
- u32 iter;
-
printk(KERN_DEBUG "SELinux: Unregistering netfilter hooks\n");
- for (iter = 0; iter < ARRAY_SIZE(selinux_ipv4_ops); iter++)
- nf_unregister_hook(&selinux_ipv4_ops[iter]);
+ nf_unregister_hooks(selinux_ipv4_ops, ARRAY_SIZE(selinux_ipv4_ops));
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
- for (iter = 0; iter < ARRAY_SIZE(selinux_ipv6_ops); iter++)
- nf_unregister_hook(&selinux_ipv6_ops[iter]);
+ nf_unregister_hooks(selinux_ipv6_ops, ARRAY_SIZE(selinux_ipv6_ops));
#endif /* IPV6 */
}
#endif
projects / linux-2.6-omap-h63xx.git / commitdiff