From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] ide: add drive->dma_mode field
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@xxxxxxxxx>
---
drivers/ide/aec62xx.c | 1 +
drivers/ide/ide-xfer-mode.c | 2 ++
include/linux/ide.h | 1 +
3 files changed, 4 insertions(+)
Index: b/drivers/ide/aec62xx.c
===================================================================
--- a/drivers/ide/aec62xx.c
+++ b/drivers/ide/aec62xx.c
@@ -136,6 +136,7 @@ static void aec6260_set_mode(ide_drive_t
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);
}
Index: b/drivers/ide/ide-xfer-mode.c
===================================================================
--- a/drivers/ide/ide-xfer-mode.c
+++ b/drivers/ide/ide-xfer-mode.c
@@ -167,9 +167,11 @@ int ide_set_dma_mode(ide_drive_t *drive,
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);
}
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -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, ... */
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