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ide: add drive->dma_mode field

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

The validity of the field is restricted to ->dma_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 07:20:35 +00:00 committed by David S. Miller
parent d2d4e780af
commit 3fccaa192b
3 changed files with 4 additions and 0 deletions
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1
drivers/ide/aec62xx.c
View file

@ -136,6 +136,7 @@ static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
drive->dma_mode = pio + XFER_PIO_0;
drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0);
}

2
drivers/ide/ide-xfer-mode.c
View file

@ -167,9 +167,11 @@ int ide_set_dma_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->dma_mode = mode;
port_ops->set_dma_mode(drive, mode);
return 0;
} else {
drive->dma_mode = mode;
port_ops->set_dma_mode(drive, mode);
return ide_config_drive_speed(drive, mode);
}

1
include/linux/ide.h
View file

@ -516,6 +516,7 @@ struct ide_drive_s {
u8 current_speed; /* current transfer rate set */
u8 desired_speed; /* desired transfer rate set */
u8 pio_mode; /* for ->set_pio_mode _only_ */
u8 dma_mode; /* for ->dma_pio_mode _only_ */
u8 dn; /* now wide spread use */
u8 acoustic; /* acoustic management */
u8 media; /* disk, cdrom, tape, floppy, ... */