ide: do not access ide_drive_t 'drive_data' field directly
Change ide_drive_t 'drive_data' field from 'unsigned int' type to 'void *'
type, allowing a wider range of values/types to be stored in this field.
Added 'ide_get_drivedata' and 'ide_set_drivedata' helpers to get and set
the 'drive_data' field.
Fixed all host drivers to maintain coherency with the change in the
'drive_data' field type.
Signed-off-by: Joao Ramos <joao.ramos@inov.pt>
[bart: fix qd65xx build, cast to 'unsigned long', minor Coding Style fixups]
Acked-by: Sergei Shtylyov <sshtylyov@ru.montavista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c
index 0332a95..9623b85 100644
--- a/drivers/ide/cs5536.c
+++ b/drivers/ide/cs5536.c
@@ -146,14 +146,16 @@
struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
ide_drive_t *pair = ide_get_pair_dev(drive);
int cshift = (drive->dn & 1) ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT;
+ unsigned long timings = (unsigned long)ide_get_drivedata(drive);
u32 cast;
u8 cmd_pio = pio;
if (pair)
cmd_pio = min(pio, ide_get_best_pio_mode(pair, 255, 4));
- drive->drive_data &= (IDE_DRV_MASK << 8);
- drive->drive_data |= drv_timings[pio];
+ timings &= (IDE_DRV_MASK << 8);
+ timings |= drv_timings[pio];
+ ide_set_drivedata(drive, (void *)timings);
cs5536_program_dtc(drive, drv_timings[pio]);
@@ -186,6 +188,7 @@
struct pci_dev *pdev = to_pci_dev(drive->hwif->dev);
int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT;
+ unsigned long timings = (unsigned long)ide_get_drivedata(drive);
u32 etc;
cs5536_read(pdev, ETC, &etc);
@@ -195,8 +198,9 @@
etc |= udma_timings[mode - XFER_UDMA_0] << dshift;
} else { /* MWDMA */
etc &= ~(IDE_ETC_UDMA_MASK << dshift);
- drive->drive_data &= IDE_DRV_MASK;
- drive->drive_data |= mwdma_timings[mode - XFER_MW_DMA_0] << 8;
+ timings &= IDE_DRV_MASK;
+ timings |= mwdma_timings[mode - XFER_MW_DMA_0] << 8;
+ ide_set_drivedata(drive, (void *)timings);
}
cs5536_write(pdev, ETC, etc);
@@ -204,9 +208,11 @@
static void cs5536_dma_start(ide_drive_t *drive)
{
+ unsigned long timings = (unsigned long)ide_get_drivedata(drive);
+
if (drive->current_speed < XFER_UDMA_0 &&
- (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
- cs5536_program_dtc(drive, drive->drive_data >> 8);
+ (timings >> 8) != (timings & IDE_DRV_MASK))
+ cs5536_program_dtc(drive, timings >> 8);
ide_dma_start(drive);
}
@@ -214,10 +220,11 @@
static int cs5536_dma_end(ide_drive_t *drive)
{
int ret = ide_dma_end(drive);
+ unsigned long timings = (unsigned long)ide_get_drivedata(drive);
if (drive->current_speed < XFER_UDMA_0 &&
- (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK))
- cs5536_program_dtc(drive, drive->drive_data & IDE_DRV_MASK);
+ (timings >> 8) != (timings & IDE_DRV_MASK))
+ cs5536_program_dtc(drive, timings & IDE_DRV_MASK);
return ret;
}