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ide-floppy: add ide_floppy_set_media_lock() helper 

Add ide_floppy_set_media_lock() helper and convert idefloppy_open(),
idefloppy_release() and ide_floppy_lockdoor() to use it.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-10-10 22:39:37 +02:00
parent acaa0f5f67
commit e996fc8ae9
1 changed files with 16 additions and 23 deletions
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39
drivers/ide/ide-floppy.c
View File

@ -1038,6 +1038,17 @@ static ide_driver_t idefloppy_driver = {
#endif
};
static void ide_floppy_set_media_lock(ide_drive_t *drive, int on)
{
struct ide_atapi_pc pc;
/* IOMEGA Clik! drives do not support lock/unlock commands */
if ((drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE) == 0) {
idefloppy_create_prevent_cmd(&pc, on);
(void)idefloppy_queue_pc_tail(drive, &pc);
}
}
static int idefloppy_open(struct inode *inode, struct file *filp)
{
struct gendisk *disk = inode->i_bdev->bd_disk;
@ -1084,12 +1095,9 @@ static int idefloppy_open(struct inode *inode, struct file *filp)
ret = -EROFS;
goto out_put_floppy;
}
drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED;
/* IOMEGA Clik! drives do not support lock/unlock commands */
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
idefloppy_create_prevent_cmd(&pc, 1);
(void) idefloppy_queue_pc_tail(drive, &pc);
}
ide_floppy_set_media_lock(drive, 1);
check_disk_change(inode->i_bdev);
} else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) {
ret = -EBUSY;
@ -1108,17 +1116,11 @@ static int idefloppy_release(struct inode *inode, struct file *filp)
struct gendisk *disk = inode->i_bdev->bd_disk;
struct ide_floppy_obj *floppy = ide_floppy_g(disk);
ide_drive_t *drive = floppy->drive;
struct ide_atapi_pc pc;
debug_log("Reached %s\n", __func__);
if (floppy->openers == 1) {
/* IOMEGA Clik! drives do not support lock/unlock commands */
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
idefloppy_create_prevent_cmd(&pc, 0);
(void) idefloppy_queue_pc_tail(drive, &pc);
}
ide_floppy_set_media_lock(drive, 0);
drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
}
@ -1144,21 +1146,12 @@ static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,
unsigned long arg, unsigned int cmd)
{
idefloppy_floppy_t *floppy = drive->driver_data;
int prevent = (arg && cmd != CDROMEJECT) ? 1 : 0;
if (floppy->openers > 1)
return -EBUSY;
/* The IOMEGA Clik! Drive doesn't support this command -
* no room for an eject mechanism */
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
int prevent = arg ? 1 : 0;
if (cmd == CDROMEJECT)
prevent = 0;
idefloppy_create_prevent_cmd(pc, prevent);
(void) idefloppy_queue_pc_tail(floppy->drive, pc);
}
ide_floppy_set_media_lock(drive, prevent);
if (cmd == CDROMEJECT) {
idefloppy_create_start_stop_cmd(pc, 2);