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Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (71 commits)
  ide: Remove ide_spin_wait_hwgroup() and use special requests instead
  ide: move IDE{FLOPPY,TAPE}_WAIT_CMD defines to <linux/ide.h>
  ide: add ide_do_test_unit_ready() helper
  ide: add ide_do_start_stop() helper
  ide: add ide_set_media_lock() helper
  ide-floppy: move floppy ioctls handling to ide-floppy_ioctl.c
  ide-floppy: ->{srfp,wp} -> IDE_AFLAG_{SRFP,WP}
  ide: add ide_queue_pc_tail() helper
  ide: add ide_queue_pc_head() helper
  ide: add ide_init_pc() helper
  ide-tape: add ide_tape_set_media_lock() helper
  ide-floppy: add ide_floppy_set_media_lock() helper
  ide: add ide_io_buffers() helper
  ide-scsi: cleanup ide_scsi_io_buffers()
  ide-floppy: remove MODE_SENSE_* defines
  ide-{floppy,tape}: remove packet command stack
  ide-{floppy,tape}: remove request stack
  ide-generic: handle probing of legacy io-ports v5
  ide-floppy: use scatterlists for pio transfers
  ide-tape: remove idetape_init_rq()
  ...
This commit is contained in:
Linus Torvalds
2008-10-11 13:22:33 -07:00
parent ead9d23d80 92f1f8fd80
commit 5c3c4d9b58
75 changed files with 2384 additions and 2562 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
include/linux/ata.h
View File

@@ -30,6 +30,7 @@
#define __LINUX_ATA_H__
#include <linux/types.h>
#include <asm/byteorder.h>
/* defines only for the constants which don't work well as enums */
#define ATA_DMA_BOUNDARY 0xffffUL
@@ -558,6 +559,15 @@ static inline int ata_id_has_flush(const u16 *id)
return id[ATA_ID_COMMAND_SET_2] & (1 << 12);
}
static inline int ata_id_flush_enabled(const u16 *id)
{
if (ata_id_has_flush(id) == 0)
return 0;
if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
return id[ATA_ID_CFS_ENABLE_2] & (1 << 12);
}
static inline int ata_id_has_flush_ext(const u16 *id)
{
if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
@@ -565,6 +575,19 @@ static inline int ata_id_has_flush_ext(const u16 *id)
return id[ATA_ID_COMMAND_SET_2] & (1 << 13);
}
static inline int ata_id_flush_ext_enabled(const u16 *id)
{
if (ata_id_has_flush_ext(id) == 0)
return 0;
if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
/*
* some Maxtor disks have bit 13 defined incorrectly
* so check bit 10 too
*/
return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400;
}
static inline int ata_id_has_lba48(const u16 *id)
{
if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
@@ -574,6 +597,15 @@ static inline int ata_id_has_lba48(const u16 *id)
return id[ATA_ID_COMMAND_SET_2] & (1 << 10);
}
static inline int ata_id_lba48_enabled(const u16 *id)
{
if (ata_id_has_lba48(id) == 0)
return 0;
if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
return 0;
return id[ATA_ID_CFS_ENABLE_2] & (1 << 10);
}
static inline int ata_id_hpa_enabled(const u16 *id)
{
/* Yes children, word 83 valid bits cover word 82 data */
@@ -645,7 +677,15 @@ static inline unsigned int ata_id_major_version(const u16 *id)
static inline int ata_id_is_sata(const u16 *id)
{
return ata_id_major_version(id) >= 5 && id[ATA_ID_HW_CONFIG] == 0;
/*
* 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[ATA_ID_HW_CONFIG] == 0 && (short)id[ATA_ID_MAJOR_VER] >= 0x0020)
return 1;
return 0;
}
static inline int ata_id_has_tpm(const u16 *id)
@@ -742,6 +782,76 @@ static inline int atapi_id_dmadir(const u16 *dev_id)
return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000);
}
/*
* ata_id_is_lba_capacity_ok() performs a sanity check on
* the claimed LBA capacity value for the device.
*
* Returns 1 if LBA capacity looks sensible, 0 otherwise.
*
* It is called only once for each device.
*/
static inline int ata_id_is_lba_capacity_ok(u16 *id)
{
unsigned long lba_sects, chs_sects, head, tail;
/* No non-LBA info .. so valid! */
if (id[ATA_ID_CYLS] == 0)
return 1;
lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
/*
* The ATA spec tells large drives to return
* C/H/S = 16383/16/63 independent of their size.
* Some drives can be jumpered to use 15 heads instead of 16.
* Some drives can be jumpered to use 4092 cyls instead of 16383.
*/
if ((id[ATA_ID_CYLS] == 16383 ||
(id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) &&
id[ATA_ID_SECTORS] == 63 &&
(id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) &&
(lba_sects >= 16383 * 63 * id[ATA_ID_HEADS]))
return 1;
chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS];
/* perform a rough sanity check on lba_sects: within 10% is OK */
if (lba_sects - chs_sects < chs_sects/10)
return 1;
/* some drives have the word order reversed */
head = (lba_sects >> 16) & 0xffff;
tail = lba_sects & 0xffff;
lba_sects = head | (tail << 16);
if (lba_sects - chs_sects < chs_sects/10) {
*(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects);
return 1; /* LBA capacity is (now) good */
}
return 0; /* LBA capacity value may be bad */
}
static inline void ata_id_to_hd_driveid(u16 *id)
{
#ifdef __BIG_ENDIAN
/* accessed in struct hd_driveid as 8-bit values */
id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]);
id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]);
id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]);
id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]);
id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]);
/* as 32-bit values */
*(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
*(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG);
/* as 64-bit value */
*(u64 *)&id[ATA_ID_LBA_CAPACITY_2] =
ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
#endif
}
static inline int is_multi_taskfile(struct ata_taskfile *tf)
{
return (tf->command == ATA_CMD_READ_MULTI) ||

322
include/linux/ide.h
View File

@@ -8,7 +8,7 @@
#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>
@@ -17,6 +17,7 @@
#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
@@ -87,12 +88,13 @@ struct ide_io_ports {
};
#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 ?? */
@@ -125,24 +127,41 @@ struct ide_io_ports {
#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
@@ -303,8 +322,8 @@ typedef enum {
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;
@@ -315,10 +334,10 @@ struct ide_acpi_hwif_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. */
@@ -354,21 +373,25 @@ enum {
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 {
@@ -380,10 +403,10 @@ 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 *) */
@@ -395,16 +418,16 @@ struct ide_drive_s {
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 */
@@ -414,23 +437,22 @@ struct ide_drive_s {
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 */
@@ -438,9 +460,7 @@ struct ide_drive_s {
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 */
@@ -474,10 +494,6 @@ typedef struct ide_drive_s ide_drive_t;
#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;
@@ -567,7 +583,6 @@ typedef struct hwif_s {
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;
@@ -645,6 +660,7 @@ struct ide_host {
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;
};
@@ -692,9 +708,61 @@ typedef struct ide_driver_s ide_driver_t;
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
*/
#define DS_SYNC (1 << 0)
struct ide_devset {
int (*get)(ide_drive_t *);
int (*set)(ide_drive_t *, int);
unsigned int flags;
};
#define __DEVSET(_flags, _get, _set) { \
.flags = _flags, \
.get = _get, \
.set = _set, \
}
#define ide_devset_get(name, field) \
static int get_##name(ide_drive_t *drive) \
{ \
return drive->field; \
}
#define ide_devset_set(name, field) \
static int set_##name(ide_drive_t *drive, int arg) \
{ \
drive->field = arg; \
return 0; \
}
#define __IDE_DEVSET(_name, _flags, _get, _set) \
const struct ide_devset ide_devset_##_name = \
__DEVSET(_flags, _get, _set)
#define IDE_DEVSET(_name, _flags, _get, _set) \
static __IDE_DEVSET(_name, _flags, _get, _set)
#define ide_devset_rw(_name, _func) \
IDE_DEVSET(_name, 0, get_##_func, set_##_func)
#define ide_devset_w(_name, _func) \
IDE_DEVSET(_name, 0, NULL, set_##_func)
#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);
/* ATAPI packet command flags */
enum {
@@ -710,6 +778,12 @@ enum {
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];
@@ -739,7 +813,7 @@ struct ide_atapi_pc {
* 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;
@@ -756,38 +830,35 @@ struct ide_atapi_pc {
};
#ifdef CONFIG_IDE_PROC_FS
/*
* configurable drive settings
*/
#define TYPE_INT 0
#define TYPE_BYTE 1
#define TYPE_SHORT 2
#define SETTING_READ (1 << 0)
#define SETTING_WRITE (1 << 1)
#define SETTING_RW (SETTING_READ | SETTING_WRITE)
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);
/*
* /proc/ide interface
*/
#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)
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 __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \
.name = __stringify(_name), \
.setting = &ide_devset_##_name, \
.min = _min, \
.max = _max, \
.mulf = _mulf, \
.divf = _divf, \
}
#define IDE_PROC_DEVSET(_name, _min, _max) \
__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL)
typedef struct {
const char *name;
mode_t mode;
@@ -804,8 +875,6 @@ void ide_proc_unregister_port(ide_hwif_t *);
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;
@@ -833,7 +902,6 @@ static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; }
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
@@ -879,7 +947,6 @@ enum {
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);
@@ -889,7 +956,8 @@ struct ide_driver_s {
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
};
@@ -898,7 +966,17 @@ struct ide_driver_s {
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;
@@ -920,14 +998,19 @@ ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8);
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);
@@ -1051,6 +1134,8 @@ void ide_tf_read(ide_drive_t *, ide_task_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);
@@ -1061,11 +1146,36 @@ extern int drive_is_ready(ide_drive_t *);
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_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);
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 *);
@@ -1080,8 +1190,6 @@ int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16);
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);
@@ -1092,7 +1200,6 @@ extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
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 *);
@@ -1229,6 +1336,14 @@ int ide_pci_init_two(struct pci_dev *, struct pci_dev *,
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 *);
@@ -1240,7 +1355,7 @@ struct drive_list_entry {
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 *);
@@ -1347,24 +1462,6 @@ const char *ide_xfer_verbose(u8 mode);
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);
@@ -1436,13 +1533,6 @@ extern struct mutex ide_cfg_mtx;
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);
@@ -1453,10 +1543,10 @@ static inline int hwif_to_node(ide_hwif_t *hwif)
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 */