#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 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)))
/*
ide_started, /* a drive operation was started, handler was set */
} ide_startstop_t;
+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),
};
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_devset **settings; /* /proc/ide/ drive settings */
#endif
struct hwif_s *hwif; /* actually (ide_hwif_t *) */
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 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 keep_settings : 1; /* restore settings after drive reset */
+ unsigned using_dma : 1; /* disk is using dma for read/write */
+ unsigned unmask : 1; /* okay to unmask other irqs */
+ unsigned noflush : 1; /* don't attempt flushes */
+ unsigned dsc_overlap : 1; /* DSC overlap */
+ unsigned nice1 : 1; /* 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 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;
+ unsigned addressing : 2; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */
+ unsigned wcache : 1; /* status of write cache */
+ unsigned nowerr : 1; /* used for ignoring ATA_DF */
- 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_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 */
#define to_ide_device(dev)container_of(dev, ide_drive_t, gendev)
-#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)
-
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;
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 get_io_32bit(ide_drive_t *);
int set_io_32bit(ide_drive_t *, int);
+int get_ksettings(ide_drive_t *);
+int set_ksettings(ide_drive_t *, int);
int set_pio_mode(ide_drive_t *, int);
+int get_unmaskirq(ide_drive_t *);
+int set_unmaskirq(ide_drive_t *, int);
+int get_using_dma(ide_drive_t *);
int set_using_dma(ide_drive_t *, int);
+#define ide_devset_get(name, field) \
+int get_##name(ide_drive_t *drive) \
+{ \
+ return drive->field; \
+}
+
+#define ide_devset_set(name, field) \
+int set_##name(ide_drive_t *drive, int arg) \
+{ \
+ drive->field = arg; \
+ return 0; \
+}
+
/* ATAPI packet command flags */
enum {
/* set when an error is considered normal - no retry (ide-tape) */
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];
* those are more or less driver-specific and some of them are subject
* to change/removal later.
*/
- u8 pc_buf[256];
+ u8 pc_buf[IDE_PC_BUFFER_SIZE];
/* idetape only */
struct idetape_bh *bh;
* configurable drive settings
*/
-#define TYPE_INT 0
-#define TYPE_BYTE 1
-#define TYPE_SHORT 2
+#define S_READ (1 << 0)
+#define S_WRITE (1 << 1)
+#define S_RW (S_READ | S_WRITE)
+#define S_NOLOCK (1 << 2)
-#define SETTING_READ (1 << 0)
-#define SETTING_WRITE (1 << 1)
-#define SETTING_RW (SETTING_READ | SETTING_WRITE)
+struct ide_devset {
+ const char *name;
+ unsigned int flags;
+ int min, max;
+ int (*get)(ide_drive_t *);
+ int (*set)(ide_drive_t *, int);
+ int (*mulf)(ide_drive_t *);
+ int (*divf)(ide_drive_t *);
+};
-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 __DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf) { \
+ .name = __stringify(_name), \
+ .flags = _flags, \
+ .min = _min, \
+ .max = _max, \
+ .get = _get, \
+ .set = _set, \
+ .mulf = _mulf, \
+ .divf = _divf, \
+}
+
+#define __IDE_DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf) \
+static const struct ide_devset ide_devset_##_name = \
+ __DEVSET(_name, _flags, _min, _max, _get, _set, _mulf, _divf)
+
+#define IDE_DEVSET(_name, _flags, _min, _max, _get, _set) \
+__IDE_DEVSET(_name, _flags, _min, _max, _get, _set, NULL, NULL)
+
+#define ide_devset_rw_nolock(_name, _min, _max, _func) \
+IDE_DEVSET(_name, S_RW | S_NOLOCK, _min, _max, get_##_func, set_##_func)
+
+#define ide_devset_w_nolock(_name, _min, _max, _func) \
+IDE_DEVSET(_name, S_WRITE | S_NOLOCK, _min, _max, NULL, set_##_func)
+
+#define ide_devset_rw(_name, _min, _max, _field) \
+static ide_devset_get(_name, _field); \
+static ide_devset_set(_name, _field); \
+IDE_DEVSET(_name, S_RW, _min, _max, get_##_name, set_##_name)
+
+#define ide_devset_r(_name, _min, _max, _field) \
+ide_devset_get(_name, _field) \
+IDE_DEVSET(_name, S_READ, _min, _max, get_##_name, NULL)
/*
* /proc/ide interface
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
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 (*shutdown)(ide_drive_t *);
#ifdef CONFIG_IDE_PROC_FS
ide_proc_entry_t *proc;
+ const struct ide_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;
+
+ int (*get)(ide_drive_t *);
+ int (*set)(ide_drive_t *, int);
+};
+
+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 *);
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);
+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),
+};
+
+void ide_queue_pc_head(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *,
+ struct request *);
+int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *);
+
+int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
+int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
+
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 (*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 *);
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);
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->present ? peer : NULL;
}
#endif /* _IDE_H */
projects / linux-2.6-omap-h63xx.git / blobdiff