diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ide.h | 100 |
1 files changed, 73 insertions, 27 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 90d53c99fe9..b538d2e6dcb 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -459,6 +459,55 @@ enum { 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), +}; + struct ide_drive_s { char name[4]; /* drive name, such as "hda" */ char driver_req[10]; /* requests specific driver */ @@ -475,6 +524,8 @@ struct ide_drive_s { #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 */ @@ -487,32 +538,6 @@ struct ide_drive_s { u8 state; /* retry state */ u8 waiting_for_dma; /* dma currently in progress */ - 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 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 doorlocking : 1; /* for removable only: door lock/unlock works */ - unsigned nodma : 1; /* disallow DMA */ - 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 : 1; /* 0=28-bit, 1=48-bit */ - unsigned wcache : 1; /* status of write cache */ - unsigned nowerr : 1; /* used for ignoring ATA_DF */ - 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 */ @@ -826,6 +851,22 @@ static int set_##name(ide_drive_t *drive, int arg) \ return 0; \ } +#define ide_devset_get_flag(name, flag) \ +static int get_##name(ide_drive_t *drive) \ +{ \ + return !!(drive->dev_flags & flag); \ +} + +#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; \ +} + #define __IDE_DEVSET(_name, _flags, _get, _set) \ const struct ide_devset ide_devset_##_name = \ __DEVSET(_flags, _get, _set) @@ -861,6 +902,11 @@ 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; @@ -1587,6 +1633,6 @@ static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) { ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; - return peer->present ? peer : NULL; + return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; } #endif /* _IDE_H */ |