xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ide: do not access ide_drive_t 'drive_data' field directly

Browse Source 
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>
This commit is contained in:
Joao Ramos
2009-06-15 22:13:44 +02:00
committed by Bartlomiej Zolnierkiewicz
parent 3779f818a4
commit 5bfb151f1f
9 changed files with 94 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/ide/sl82c105.c
View File

@@ -73,6 +73,7 @@ static unsigned int get_pio_timings(ide_drive_t *drive, u8 pio)
static void sl82c105_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
unsigned long timings = (unsigned long)ide_get_drivedata(drive);
int reg = 0x44 + drive->dn * 4;
u16 drv_ctrl;
@@ -82,8 +83,9 @@ static void sl82c105_set_pio_mode(ide_drive_t *drive, const u8 pio)
* Store the PIO timings so that we can restore them
* in case DMA will be turned off...
*/
drive->drive_data &= 0xffff0000;
drive->drive_data |= drv_ctrl;
timings &= 0xffff0000;
timings |= drv_ctrl;
ide_set_drivedata(drive, (void *)timings);
pci_write_config_word(dev, reg, drv_ctrl);
pci_read_config_word (dev, reg, &drv_ctrl);
@@ -99,6 +101,7 @@ static void sl82c105_set_pio_mode(ide_drive_t *drive, const u8 pio)
static void sl82c105_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
static u16 mwdma_timings[] = {0x0707, 0x0201, 0x0200};
unsigned long timings = (unsigned long)ide_get_drivedata(drive);
u16 drv_ctrl;
DBG(("sl82c105_tune_chipset(drive:%s, speed:%s)\n",
@@ -110,8 +113,9 @@ static void sl82c105_set_dma_mode(ide_drive_t *drive, const u8 speed)
* Store the DMA timings so that we can actually program
* them when DMA will be turned on...
*/
drive->drive_data &= 0x0000ffff;
drive->drive_data |= (unsigned long)drv_ctrl << 16;
timings &= 0x0000ffff;
timings |= (unsigned long)drv_ctrl << 16;
ide_set_drivedata(drive, (void *)timings);
}
static int sl82c105_test_irq(ide_hwif_t *hwif)
@@ -194,7 +198,8 @@ static void sl82c105_dma_start(ide_drive_t *drive)
DBG(("%s(drive:%s)\n", __func__, drive->name));
pci_write_config_word(dev, reg, drive->drive_data >> 16);
pci_write_config_word(dev, reg,
(unsigned long)ide_get_drivedata(drive) >> 16);
sl82c105_reset_host(dev);
ide_dma_start(drive);
@@ -219,7 +224,8 @@ static int sl82c105_dma_end(ide_drive_t *drive)
ret = ide_dma_end(drive);
pci_write_config_word(dev, reg, drive->drive_data);
pci_write_config_word(dev, reg,
(unsigned long)ide_get_drivedata(drive));
return ret;
}