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ide: add generic ATA/ATAPI disk driver

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* Add struct ide_disk_ops containing protocol specific methods.

* Add 'struct ide_disk_ops *' to ide_drive_t.

* Convert ide-{disk,floppy} drivers to use struct ide_disk_ops.

* Merge ide-{disk,floppy} drivers into generic ide-gd driver.

While at it:
- ide_disk_init_capacity() -> ide_disk_get_capacity()

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-10-17 18:09:14 +02:00
parent 79cb380397
commit 806f80a6fc
13 changed files with 304 additions and 456 deletions
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19
include/linux/ide.h
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@ -461,6 +461,23 @@ struct ide_acpi_drive_link;
struct ide_acpi_hwif_link;
#endif
struct ide_drive_s;
struct ide_disk_ops {
int (*check)(struct ide_drive_s *, const char *);
int (*get_capacity)(struct ide_drive_s *);
void (*setup)(struct ide_drive_s *);
void (*flush)(struct ide_drive_s *);
int (*init_media)(struct ide_drive_s *, struct gendisk *);
int (*set_doorlock)(struct ide_drive_s *, struct gendisk *,
int);
ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *,
sector_t);
int (*end_request)(struct ide_drive_s *, int, int);
int (*ioctl)(struct ide_drive_s *, struct inode *,
struct file *, unsigned int, unsigned long);
};
/* ATAPI device flags */
enum {
IDE_AFLAG_DRQ_INTERRUPT = (1 << 0),
@ -594,6 +611,8 @@ struct ide_drive_s {
#endif
struct hwif_s *hwif; /* actually (ide_hwif_t *) */
const struct ide_disk_ops *disk_ops;
unsigned long dev_flags;
unsigned long sleep; /* sleep until this time */