#include <linux/init.h>
#include <linux/ioport.h>
-#include <linux/hdreg.h>
+#include <linux/ata.h>
#include <linux/blkdev.h>
#include <linux/proc_fs.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <linux/completion.h>
+#include <linux/pm.h>
#ifdef CONFIG_BLK_DEV_IDEACPI
#include <acpi/acpi.h>
#endif
#define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
-/*
- * state flags
- */
-
-#define DMA_PIO_RETRY 1 /* retrying in PIO */
-
#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
};
#define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good))
-#define BAD_R_STAT (BUSY_STAT | ERR_STAT)
-#define BAD_W_STAT (BAD_R_STAT | WRERR_STAT)
-#define BAD_STAT (BAD_R_STAT | DRQ_STAT)
-#define DRIVE_READY (READY_STAT | SEEK_STAT)
-#define BAD_CRC (ABRT_ERR | ICRC_ERR)
+#define BAD_R_STAT (ATA_BUSY | ATA_ERR)
+#define BAD_W_STAT (BAD_R_STAT | ATA_DF)
+#define BAD_STAT (BAD_R_STAT | ATA_DRQ)
+#define DRIVE_READY (ATA_DRDY | ATA_DSC)
+
+#define BAD_CRC (ATA_ABORTED | ATA_ICRC)
#define SATA_NR_PORTS (3) /* 16 possible ?? */
#define PARTN_BITS 6 /* number of minor dev bits for partitions */
#define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */
#define SECTOR_SIZE 512
-#define SECTOR_WORDS (SECTOR_SIZE / 4) /* number of 32bit words per sector */
+
#define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t)))
/*
* Timeouts for various operations:
*/
-#define WAIT_DRQ (HZ/10) /* 100msec - spec allows up to 20ms */
-#define WAIT_READY (5*HZ) /* 5sec - some laptops are very slow */
-#define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */
-#define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */
-#define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */
-#define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */
+enum {
+ /* spec allows up to 20ms */
+ WAIT_DRQ = HZ / 10, /* 100ms */
+ /* some laptops are very slow */
+ WAIT_READY = 5 * HZ, /* 5s */
+ /* should be less than 3ms (?), if all ATAPI CD is closed at boot */
+ WAIT_PIDENTIFY = 10 * HZ, /* 10s */
+ /* worst case when spinning up */
+ WAIT_WORSTCASE = 30 * HZ, /* 30s */
+ /* maximum wait for an IRQ to happen */
+ WAIT_CMD = 10 * HZ, /* 10s */
+ /* Some drives require a longer IRQ timeout. */
+ WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */
+ /*
+ * Some drives (for example, Seagate STT3401A Travan) require a very
+ * long timeout, because they don't return an interrupt or clear their
+ * BSY bit until after the command completes (even retension commands).
+ */
+ WAIT_TAPE_CMD = 900 * HZ, /* 900s */
+ /* minimum sleep time */
+ WAIT_MIN_SLEEP = HZ / 50, /* 20ms */
+};
/*
* Op codes for special requests to be handled by ide_special_rq().
* Values should be in the range of 0x20 to 0x3f.
*/
#define REQ_DRIVE_RESET 0x20
+#define REQ_DEVSET_EXEC 0x21
/*
* Check for an interrupt and acknowledge the interrupt status
* set_geometry : respecify drive geometry
* recalibrate : seek to cyl 0
* set_multmode : set multmode count
- * set_tune : tune interface for drive
- * serviced : service command
* reserved : unused
*/
typedef union {
unsigned set_geometry : 1;
unsigned recalibrate : 1;
unsigned set_multmode : 1;
- unsigned set_tune : 1;
- unsigned serviced : 1;
- unsigned reserved : 3;
+ unsigned reserved : 5;
} b;
} special_t;
-/*
- * ATA-IDE Select Register, aka Device-Head
- *
- * head : always zeros here
- * unit : drive select number: 0/1
- * bit5 : always 1
- * lba : using LBA instead of CHS
- * bit7 : always 1
- */
-typedef union {
- unsigned all : 8;
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- unsigned head : 4;
- unsigned unit : 1;
- unsigned bit5 : 1;
- unsigned lba : 1;
- unsigned bit7 : 1;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- unsigned bit7 : 1;
- unsigned lba : 1;
- unsigned bit5 : 1;
- unsigned unit : 1;
- unsigned head : 4;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
- } b;
-} select_t, ata_select_t;
-
/*
* Status returned from various ide_ functions
*/
ide_started, /* a drive operation was started, handler was set */
} ide_startstop_t;
+/* ATAPI packet command flags */
+enum {
+ /* set when an error is considered normal - no retry (ide-tape) */
+ PC_FLAG_ABORT = (1 << 0),
+ PC_FLAG_SUPPRESS_ERROR = (1 << 1),
+ PC_FLAG_WAIT_FOR_DSC = (1 << 2),
+ PC_FLAG_DMA_OK = (1 << 3),
+ PC_FLAG_DMA_IN_PROGRESS = (1 << 4),
+ PC_FLAG_DMA_ERROR = (1 << 5),
+ PC_FLAG_WRITING = (1 << 6),
+ /* command timed out */
+ PC_FLAG_TIMEDOUT = (1 << 7),
+};
+
+/*
+ * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes.
+ * This is used for several packet commands (not for READ/WRITE commands).
+ */
+#define IDE_PC_BUFFER_SIZE 256
+
+struct ide_atapi_pc {
+ /* actual packet bytes */
+ u8 c[12];
+ /* incremented on each retry */
+ int retries;
+ int error;
+
+ /* bytes to transfer */
+ int req_xfer;
+ /* bytes actually transferred */
+ int xferred;
+
+ /* data buffer */
+ u8 *buf;
+ /* current buffer position */
+ u8 *cur_pos;
+ int buf_size;
+ /* missing/available data on the current buffer */
+ int b_count;
+
+ /* the corresponding request */
+ struct request *rq;
+
+ unsigned long flags;
+
+ /*
+ * those are more or less driver-specific and some of them are subject
+ * to change/removal later.
+ */
+ u8 pc_buf[IDE_PC_BUFFER_SIZE];
+
+ /* idetape only */
+ struct idetape_bh *bh;
+ char *b_data;
+
+ /* idescsi only for now */
+ struct scatterlist *sg;
+ unsigned int sg_cnt;
+
+ struct scsi_cmnd *scsi_cmd;
+ void (*done) (struct scsi_cmnd *);
+
+ unsigned long timeout;
+};
+
+struct ide_devset;
struct ide_driver_s;
-struct ide_settings_s;
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_drive_link;
enum {
IDE_AFLAG_DRQ_INTERRUPT = (1 << 0),
IDE_AFLAG_MEDIA_CHANGED = (1 << 1),
-
- /* ide-cd */
/* Drive cannot lock the door. */
IDE_AFLAG_NO_DOORLOCK = (1 << 2),
+
+ /* ide-cd */
/* Drive cannot eject the disc. */
IDE_AFLAG_NO_EJECT = (1 << 3),
/* Drive is a pre ATAPI 1.2 drive. */
IDE_AFLAG_CLIK_DRIVE = (1 << 19),
/* Requires BH algorithm for packets */
IDE_AFLAG_ZIP_DRIVE = (1 << 20),
+ /* Write protect */
+ IDE_AFLAG_WP = (1 << 21),
+ /* Supports format progress report */
+ IDE_AFLAG_SRFP = (1 << 22),
/* ide-tape */
- IDE_AFLAG_IGNORE_DSC = (1 << 21),
+ IDE_AFLAG_IGNORE_DSC = (1 << 23),
/* 0 When the tape position is unknown */
- IDE_AFLAG_ADDRESS_VALID = (1 << 22),
+ IDE_AFLAG_ADDRESS_VALID = (1 << 24),
/* Device already opened */
- IDE_AFLAG_BUSY = (1 << 23),
+ IDE_AFLAG_BUSY = (1 << 25),
/* Attempt to auto-detect the current user block size */
- IDE_AFLAG_DETECT_BS = (1 << 24),
+ IDE_AFLAG_DETECT_BS = (1 << 26),
/* Currently on a filemark */
- IDE_AFLAG_FILEMARK = (1 << 25),
+ IDE_AFLAG_FILEMARK = (1 << 27),
/* 0 = no tape is loaded, so we don't rewind after ejecting */
- IDE_AFLAG_MEDIUM_PRESENT = (1 << 26),
+ IDE_AFLAG_MEDIUM_PRESENT = (1 << 28),
- IDE_AFLAG_NO_AUTOCLOSE = (1 << 27),
+ IDE_AFLAG_NO_AUTOCLOSE = (1 << 29),
+};
+
+/* device flags */
+enum {
+ /* restore settings after device reset */
+ IDE_DFLAG_KEEP_SETTINGS = (1 << 0),
+ /* device is using DMA for read/write */
+ IDE_DFLAG_USING_DMA = (1 << 1),
+ /* okay to unmask other IRQs */
+ IDE_DFLAG_UNMASK = (1 << 2),
+ /* don't attempt flushes */
+ IDE_DFLAG_NOFLUSH = (1 << 3),
+ /* DSC overlap */
+ IDE_DFLAG_DSC_OVERLAP = (1 << 4),
+ /* give potential excess bandwidth */
+ IDE_DFLAG_NICE1 = (1 << 5),
+ /* device is physically present */
+ IDE_DFLAG_PRESENT = (1 << 6),
+ /* device ejected hint */
+ IDE_DFLAG_DEAD = (1 << 7),
+ /* id read from device (synthetic if not set) */
+ IDE_DFLAG_ID_READ = (1 << 8),
+ IDE_DFLAG_NOPROBE = (1 << 9),
+ /* need to do check_media_change() */
+ IDE_DFLAG_REMOVABLE = (1 << 10),
+ /* needed for removable devices */
+ IDE_DFLAG_ATTACH = (1 << 11),
+ IDE_DFLAG_FORCED_GEOM = (1 << 12),
+ /* disallow setting unmask bit */
+ IDE_DFLAG_NO_UNMASK = (1 << 13),
+ /* disallow enabling 32-bit I/O */
+ IDE_DFLAG_NO_IO_32BIT = (1 << 14),
+ /* for removable only: door lock/unlock works */
+ IDE_DFLAG_DOORLOCKING = (1 << 15),
+ /* disallow DMA */
+ IDE_DFLAG_NODMA = (1 << 16),
+ /* powermanagment told us not to do anything, so sleep nicely */
+ IDE_DFLAG_BLOCKED = (1 << 17),
+ /* ide-scsi emulation */
+ IDE_DFLAG_SCSI = (1 << 18),
+ /* sleeping & sleep field valid */
+ IDE_DFLAG_SLEEPING = (1 << 19),
+ IDE_DFLAG_POST_RESET = (1 << 20),
+ IDE_DFLAG_UDMA33_WARNED = (1 << 21),
+ IDE_DFLAG_LBA48 = (1 << 22),
+ /* status of write cache */
+ IDE_DFLAG_WCACHE = (1 << 23),
+ /* used for ignoring ATA_DF */
+ IDE_DFLAG_NOWERR = (1 << 24),
+ /* retrying in PIO */
+ IDE_DFLAG_DMA_PIO_RETRY = (1 << 25),
+ IDE_DFLAG_LBA = (1 << 26),
};
struct ide_drive_s {
struct request *rq; /* current request */
struct ide_drive_s *next; /* circular list of hwgroup drives */
void *driver_data; /* extra driver data */
- struct hd_driveid *id; /* drive model identification info */
+ u16 *id; /* identification info */
#ifdef CONFIG_IDE_PROC_FS
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
- struct ide_settings_s *settings;/* /proc/ide/ drive settings */
+ const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */
#endif
struct hwif_s *hwif; /* actually (ide_hwif_t *) */
+ unsigned long dev_flags;
+
unsigned long sleep; /* sleep until this time */
unsigned long service_start; /* time we started last request */
unsigned long service_time; /* service time of last request */
unsigned long timeout; /* max time to wait for irq */
special_t special; /* special action flags */
- select_t select; /* basic drive/head select reg value */
- u8 keep_settings; /* restore settings after drive reset */
- u8 using_dma; /* disk is using dma for read/write */
+ u8 select; /* basic drive/head select reg value */
u8 retry_pio; /* retrying dma capable host in pio */
- u8 state; /* retry state */
u8 waiting_for_dma; /* dma currently in progress */
- u8 unmask; /* okay to unmask other irqs */
- u8 noflush; /* don't attempt flushes */
- u8 dsc_overlap; /* DSC overlap */
- u8 nice1; /* give potential excess bandwidth */
-
- unsigned present : 1; /* drive is physically present */
- unsigned dead : 1; /* device ejected hint */
- unsigned id_read : 1; /* 1=id read from disk 0 = synthetic */
- unsigned noprobe : 1; /* from: hdx=noprobe */
- unsigned removable : 1; /* 1 if need to do check_media_change */
- unsigned attach : 1; /* needed for removable devices */
- unsigned forced_geom : 1; /* 1 if hdx=c,h,s was given at boot */
- unsigned no_unmask : 1; /* disallow setting unmask bit */
- unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */
- unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */
- unsigned doorlocking : 1; /* for removable only: door lock/unlock works */
- unsigned nodma : 1; /* disallow DMA */
- unsigned remap_0_to_1 : 1; /* 0=noremap, 1=remap 0->1 (for EZDrive) */
- unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */
- unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */
- unsigned sleeping : 1; /* 1=sleeping & sleep field valid */
- unsigned post_reset : 1;
- unsigned udma33_warned : 1;
-
- u8 addressing; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */
+
u8 quirk_list; /* considered quirky, set for a specific host */
u8 init_speed; /* transfer rate set at boot */
u8 current_speed; /* current transfer rate set */
u8 desired_speed; /* desired transfer rate set */
u8 dn; /* now wide spread use */
- u8 wcache; /* status of write cache */
u8 acoustic; /* acoustic management */
u8 media; /* disk, cdrom, tape, floppy, ... */
u8 ready_stat; /* min status value for drive ready */
u8 mult_count; /* current multiple sector setting */
u8 mult_req; /* requested multiple sector setting */
- u8 tune_req; /* requested drive tuning setting */
u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
- u8 bad_wstat; /* used for ignoring WRERR_STAT */
- u8 nowerr; /* used for ignoring WRERR_STAT */
- u8 sect0; /* offset of first sector for DM6:DDO */
+ u8 bad_wstat; /* used for ignoring ATA_DF */
u8 head; /* "real" number of heads */
u8 sect; /* "real" sectors per track */
u8 bios_head; /* BIOS/fdisk/LILO number of heads */
u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */
+ /* delay this long before sending packet command */
+ u8 pc_delay;
+
unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */
unsigned int cyl; /* "real" number of cyls */
unsigned int drive_data; /* used by set_pio_mode/selectproc */
int lun; /* logical unit */
int crc_count; /* crc counter to reduce drive speed */
+
+ unsigned long debug_mask; /* debugging levels switch */
+
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_drive_link *acpidata;
#endif
struct device gendev;
struct completion gendev_rel_comp; /* to deal with device release() */
+ /* current packet command */
+ struct ide_atapi_pc *pc;
+
/* callback for packet commands */
- void (*pc_callback)(struct ide_drive_s *);
+ void (*pc_callback)(struct ide_drive_s *, int);
+
+ void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *);
+ int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *,
+ unsigned int, int);
unsigned long atapi_flags;
+
+ struct ide_atapi_pc request_sense_pc;
+ struct request request_sense_rq;
};
typedef struct ide_drive_s ide_drive_t;
-#define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
+#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev)
+
+#define to_ide_drv(obj, cont_type) \
+ container_of(obj, struct cont_type, kref)
-#define IDE_CHIPSET_PCI_MASK \
- ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
-#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)
+#define ide_drv_g(disk, cont_type) \
+ container_of((disk)->private_data, struct cont_type, driver)
struct ide_task_s;
struct ide_port_info;
u8 major; /* our major number */
u8 index; /* 0 for ide0; 1 for ide1; ... */
u8 channel; /* for dual-port chips: 0=primary, 1=secondary */
- u8 bus_state; /* power state of the IDE bus */
u32 host_flags;
void *hwif_data; /* extra hwif data */
- unsigned dma;
-
#ifdef CONFIG_BLK_DEV_IDEACPI
struct ide_acpi_hwif_link *acpidata;
#endif
ide_hwif_t *ports[MAX_HWIFS];
unsigned int n_ports;
struct device *dev[2];
+ unsigned int (*init_chipset)(struct pci_dev *);
unsigned long host_flags;
void *host_priv;
};
extern struct mutex ide_setting_mtx;
-int set_io_32bit(ide_drive_t *, int);
-int set_pio_mode(ide_drive_t *, int);
-int set_using_dma(ide_drive_t *, int);
+/*
+ * configurable drive settings
+ */
-/* ATAPI packet command flags */
-enum {
- /* set when an error is considered normal - no retry (ide-tape) */
- PC_FLAG_ABORT = (1 << 0),
- PC_FLAG_SUPPRESS_ERROR = (1 << 1),
- PC_FLAG_WAIT_FOR_DSC = (1 << 2),
- PC_FLAG_DMA_OK = (1 << 3),
- PC_FLAG_DMA_IN_PROGRESS = (1 << 4),
- PC_FLAG_DMA_ERROR = (1 << 5),
- PC_FLAG_WRITING = (1 << 6),
- /* command timed out */
- PC_FLAG_TIMEDOUT = (1 << 7),
+#define DS_SYNC (1 << 0)
+
+struct ide_devset {
+ int (*get)(ide_drive_t *);
+ int (*set)(ide_drive_t *, int);
+ unsigned int flags;
};
-struct ide_atapi_pc {
- /* actual packet bytes */
- u8 c[12];
- /* incremented on each retry */
- int retries;
- int error;
+#define __DEVSET(_flags, _get, _set) { \
+ .flags = _flags, \
+ .get = _get, \
+ .set = _set, \
+}
- /* bytes to transfer */
- int req_xfer;
- /* bytes actually transferred */
- int xferred;
+#define ide_devset_get(name, field) \
+static int get_##name(ide_drive_t *drive) \
+{ \
+ return drive->field; \
+}
- /* data buffer */
- u8 *buf;
- /* current buffer position */
- u8 *cur_pos;
- int buf_size;
- /* missing/available data on the current buffer */
- int b_count;
+#define ide_devset_set(name, field) \
+static int set_##name(ide_drive_t *drive, int arg) \
+{ \
+ drive->field = arg; \
+ return 0; \
+}
- /* the corresponding request */
- struct request *rq;
+#define ide_devset_get_flag(name, flag) \
+static int get_##name(ide_drive_t *drive) \
+{ \
+ return !!(drive->dev_flags & flag); \
+}
- unsigned long flags;
+#define ide_devset_set_flag(name, flag) \
+static int set_##name(ide_drive_t *drive, int arg) \
+{ \
+ if (arg) \
+ drive->dev_flags |= flag; \
+ else \
+ drive->dev_flags &= ~flag; \
+ return 0; \
+}
- /*
- * those are more or less driver-specific and some of them are subject
- * to change/removal later.
- */
- u8 pc_buf[256];
+#define __IDE_DEVSET(_name, _flags, _get, _set) \
+const struct ide_devset ide_devset_##_name = \
+ __DEVSET(_flags, _get, _set)
- /* idetape only */
- struct idetape_bh *bh;
- char *b_data;
+#define IDE_DEVSET(_name, _flags, _get, _set) \
+static __IDE_DEVSET(_name, _flags, _get, _set)
- /* idescsi only for now */
- struct scatterlist *sg;
- unsigned int sg_cnt;
+#define ide_devset_rw(_name, _func) \
+IDE_DEVSET(_name, 0, get_##_func, set_##_func)
- struct scsi_cmnd *scsi_cmd;
- void (*done) (struct scsi_cmnd *);
+#define ide_devset_w(_name, _func) \
+IDE_DEVSET(_name, 0, NULL, set_##_func)
- unsigned long timeout;
-};
+#define ide_devset_rw_sync(_name, _func) \
+IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func)
+
+#define ide_decl_devset(_name) \
+extern const struct ide_devset ide_devset_##_name
+
+ide_decl_devset(io_32bit);
+ide_decl_devset(keepsettings);
+ide_decl_devset(pio_mode);
+ide_decl_devset(unmaskirq);
+ide_decl_devset(using_dma);
#ifdef CONFIG_IDE_PROC_FS
/*
- * configurable drive settings
+ * /proc/ide interface
*/
-#define TYPE_INT 0
-#define TYPE_BYTE 1
-#define TYPE_SHORT 2
+#define ide_devset_rw_field(_name, _field) \
+ide_devset_get(_name, _field); \
+ide_devset_set(_name, _field); \
+IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
+
+#define ide_devset_rw_flag(_name, _field) \
+ide_devset_get_flag(_name, _field); \
+ide_devset_set_flag(_name, _field); \
+IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name)
+
+struct ide_proc_devset {
+ const char *name;
+ const struct ide_devset *setting;
+ int min, max;
+ int (*mulf)(ide_drive_t *);
+ int (*divf)(ide_drive_t *);
+};
-#define SETTING_READ (1 << 0)
-#define SETTING_WRITE (1 << 1)
-#define SETTING_RW (SETTING_READ | SETTING_WRITE)
+#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
+ .name = __stringify(_name), \
+ .setting = &ide_devset_##_name, \
+ .min = _min, \
+ .max = _max, \
+ .mulf = _mulf, \
+ .divf = _divf, \
+}
-typedef int (ide_procset_t)(ide_drive_t *, int);
-typedef struct ide_settings_s {
- char *name;
- int rw;
- int data_type;
- int min;
- int max;
- int mul_factor;
- int div_factor;
- void *data;
- ide_procset_t *set;
- int auto_remove;
- struct ide_settings_s *next;
-} ide_settings_t;
-
-int ide_add_setting(ide_drive_t *, const char *, int, int, int, int, int, int, void *, ide_procset_t *set);
+#define IDE_PROC_DEVSET(_name, _min, _max) \
+__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
-/*
- * /proc/ide interface
- */
typedef struct {
const char *name;
mode_t mode;
void ide_proc_register_driver(ide_drive_t *, ide_driver_t *);
void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *);
-void ide_add_generic_settings(ide_drive_t *);
-
read_proc_t proc_ide_read_capacity;
read_proc_t proc_ide_read_geometry;
static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; }
static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; }
-static inline void ide_add_generic_settings(ide_drive_t *drive) { ; }
#define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0;
#endif
+enum {
+ /* enter/exit functions */
+ IDE_DBG_FUNC = (1 << 0),
+ /* sense key/asc handling */
+ IDE_DBG_SENSE = (1 << 1),
+ /* packet commands handling */
+ IDE_DBG_PC = (1 << 2),
+ /* request handling */
+ IDE_DBG_RQ = (1 << 3),
+ /* driver probing/setup */
+ IDE_DBG_PROBE = (1 << 4),
+};
+
+/* DRV_NAME has to be defined in the driver before using the macro below */
+#define __ide_debug_log(lvl, fmt, args...) \
+{ \
+ if (unlikely(drive->debug_mask & lvl)) \
+ printk(KERN_INFO DRV_NAME ": " fmt, ## args); \
+}
+
/*
- * Power Management step value (rq->pm->pm_step).
+ * Power Management state machine (rq->pm->pm_step).
*
- * The step value starts at 0 (ide_pm_state_start_suspend) for a
- * suspend operation or 1000 (ide_pm_state_start_resume) for a
- * resume operation.
- *
- * For each step, the core calls the subdriver start_power_step() first.
+ * For each step, the core calls ide_start_power_step() first.
* This can return:
* - ide_stopped : In this case, the core calls us back again unless
* step have been set to ide_power_state_completed.
* - ide_started : In this case, the channel is left busy until an
* async event (interrupt) occurs.
- * Typically, start_power_step() will issue a taskfile request with
+ * Typically, ide_start_power_step() will issue a taskfile request with
* do_rw_taskfile().
*
- * Upon reception of the interrupt, the core will call complete_power_step()
+ * Upon reception of the interrupt, the core will call ide_complete_power_step()
* with the error code if any. This routine should update the step value
* and return. It should not start a new request. The core will call
- * start_power_step for the new step value, unless step have been set to
- * ide_power_state_completed.
- *
- * Subdrivers are expected to define their own additional power
- * steps from 1..999 for suspend and from 1001..1999 for resume,
- * other values are reserved for future use.
+ * ide_start_power_step() for the new step value, unless step have been
+ * set to IDE_PM_COMPLETED.
*/
-
enum {
- ide_pm_state_completed = -1,
- ide_pm_state_start_suspend = 0,
- ide_pm_state_start_resume = 1000,
+ IDE_PM_START_SUSPEND,
+ IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND,
+ IDE_PM_STANDBY,
+
+ IDE_PM_START_RESUME,
+ IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME,
+ IDE_PM_IDLE,
+ IDE_PM_RESTORE_DMA,
+
+ IDE_PM_COMPLETED,
};
/*
*/
struct ide_driver_s {
const char *version;
- u8 media;
- unsigned supports_dsc_overlap : 1;
ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
int (*end_request)(ide_drive_t *, int, int);
ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8);
void (*resume)(ide_drive_t *);
void (*shutdown)(ide_drive_t *);
#ifdef CONFIG_IDE_PROC_FS
- ide_proc_entry_t *proc;
+ ide_proc_entry_t *proc;
+ const struct ide_proc_devset *settings;
#endif
};
int ide_device_get(ide_drive_t *);
void ide_device_put(ide_drive_t *);
-int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long);
+struct ide_ioctl_devset {
+ unsigned int get_ioctl;
+ unsigned int set_ioctl;
+ const struct ide_devset *setting;
+};
+
+int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int,
+ unsigned long, const struct ide_ioctl_devset *);
+
+int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *,
+ unsigned, unsigned long);
extern int ide_vlb_clk;
extern int ide_pci_clk;
ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
-extern void ide_fix_driveid(struct hd_driveid *);
+void ide_fix_driveid(u16 *);
extern void ide_fixstring(u8 *, const int, const int);
+int ide_busy_sleep(ide_hwif_t *, unsigned long, int);
+
int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long);
extern ide_startstop_t ide_do_reset (ide_drive_t *);
+extern int ide_devset_execute(ide_drive_t *drive,
+ const struct ide_devset *setting, int arg);
+
extern void ide_do_drive_cmd(ide_drive_t *, struct request *);
extern void ide_end_drive_cmd(ide_drive_t *, u8, u8);
void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
+int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int);
+
extern void SELECT_DRIVE(ide_drive_t *);
void SELECT_MASK(ide_drive_t *, int);
void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
-ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
- ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
- void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
- void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *),
- void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int,
- int));
-ide_startstop_t ide_transfer_pc(ide_drive_t *, struct ide_atapi_pc *,
- ide_handler_t *, unsigned int, ide_expiry_t *);
-ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_atapi_pc *,
- ide_handler_t *, unsigned int, ide_expiry_t *);
+int ide_check_atapi_device(ide_drive_t *, const char *);
+
+void ide_init_pc(struct ide_atapi_pc *);
+
+/*
+ * Special requests for ide-tape block device strategy routine.
+ *
+ * In order to service a character device command, we add special requests to
+ * the tail of our block device request queue and wait for their completion.
+ */
+enum {
+ REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */
+ REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */
+ REQ_IDETAPE_READ = (1 << 2),
+ REQ_IDETAPE_WRITE = (1 << 3),
+};
+
+int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *);
+
+int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
+int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
+int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
+void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
+void ide_retry_pc(ide_drive_t *, struct gendisk *);
+
+static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc)
+{
+ return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies);
+}
+
+int ide_scsi_expiry(ide_drive_t *);
+
+ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *);
ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *);
int ide_no_data_taskfile(ide_drive_t *, ide_task_t *);
int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long);
-int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long);
-int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long);
extern int ide_driveid_update(ide_drive_t *);
extern int ide_config_drive_speed(ide_drive_t *, u8);
extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
-extern int ide_spin_wait_hwgroup(ide_drive_t *);
extern void ide_timer_expiry(unsigned long);
extern irqreturn_t ide_intr(int irq, void *dev_id);
extern void do_ide_request(struct request_queue *);
const struct ide_port_info *, void *);
void ide_pci_remove(struct pci_dev *);
+#ifdef CONFIG_PM
+int ide_pci_suspend(struct pci_dev *, pm_message_t);
+int ide_pci_resume(struct pci_dev *);
+#else
+#define ide_pci_suspend NULL
+#define ide_pci_resume NULL
+#endif
+
void ide_map_sg(ide_drive_t *, struct request *);
void ide_init_sg_cmd(ide_drive_t *, struct request *);
const char *id_firmware;
};
-int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
+int ide_in_drive_list(u16 *, const struct drive_list_entry *);
#ifdef CONFIG_BLK_DEV_IDEDMA
int __ide_dma_bad_drive(ide_drive_t *);
extern void ide_toggle_bounce(ide_drive_t *drive, int on);
extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
-static inline int ide_dev_has_iordy(struct hd_driveid *id)
-{
- return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0;
-}
-
-static inline int ide_dev_is_sata(struct hd_driveid *id)
-{
- /*
- * See if word 93 is 0 AND drive is at least ATA-5 compatible
- * verifying that word 80 by casting it to a signed type --
- * this trick allows us to filter out the reserved values of
- * 0x0000 and 0xffff along with the earlier ATA revisions...
- */
- if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020)
- return 1;
- return 0;
-}
-
u64 ide_get_lba_addr(struct ide_taskfile *, int);
u8 ide_dump_status(ide_drive_t *, const char *, u8);
extern struct bus_type ide_bus_type;
extern struct class *ide_port_class;
-/* check if CACHE FLUSH (EXT) command is supported (bits defined in ATA-6) */
-#define ide_id_has_flush_cache(id) ((id)->cfs_enable_2 & 0x3000)
-
-/* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */
-#define ide_id_has_flush_cache_ext(id) \
- (((id)->cfs_enable_2 & 0x2400) == 0x2400)
-
static inline void ide_dump_identify(u8 *id)
{
print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
return hwif->dev ? dev_to_node(hwif->dev) : -1;
}
-static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
+static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
+ ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1];
- return &hwif->drives[(drive->dn ^ 1) & 1];
+ return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
}
#endif /* _IDE_H */