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ide: add drive->pio_mode field

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Add pio_mode field to ide_drive_t matching pio_mode field used in
struct ata_device.

The validity of the field is restricted to ->set_pio_mode method
only currently in IDE subsystem.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2010-01-18 07:20:28 +00:00 committed by David S. Miller
parent 68d0a03616
commit d2d4e780af
4 changed files with 8 additions and 0 deletions
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2
drivers/ide/ide-devsets.c
View file

@ -105,6 +105,8 @@ static int set_pio_mode(ide_drive_t *drive, int arg)
return -ENOSYS;
if (set_pio_mode_abuse(drive->hwif, arg)) {
drive->pio_mode = arg + XFER_PIO_0;
if (arg == 8 || arg == 9) {
unsigned long flags;

2
drivers/ide/ide-probe.c
View file

@ -1043,6 +1043,8 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS)
drive->dev_flags |= IDE_DFLAG_NO_UNMASK;
drive->pio_mode = XFER_PIO_0;
if (port_ops && port_ops->init_dev)
port_ops->init_dev(drive);
}

3
drivers/ide/ide-xfer-mode.c
View file

@ -135,6 +135,7 @@ int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
* set transfer mode on the device in ->set_pio_mode method...
*/
if (port_ops->set_dma_mode == NULL) {
drive->pio_mode = mode;
port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
return 0;
}
@ -142,9 +143,11 @@ int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
if (ide_config_drive_speed(drive, mode))
return -1;
drive->pio_mode = mode;
port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
return 0;
} else {
drive->pio_mode = mode;
port_ops->set_pio_mode(drive, mode - XFER_PIO_0);
return ide_config_drive_speed(drive, mode);
}

1
include/linux/ide.h
View file

@ -515,6 +515,7 @@ struct ide_drive_s {
u8 init_speed; /* transfer rate set at boot */
u8 current_speed; /* current transfer rate set */
u8 desired_speed; /* desired transfer rate set */
u8 pio_mode; /* for ->set_pio_mode _only_ */
u8 dn; /* now wide spread use */
u8 acoustic; /* acoustic management */
u8 media; /* disk, cdrom, tape, floppy, ... */