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| author | Joao Ramos <joao.ramos@inov.pt> | 2009-06-15 22:13:44 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-15 22:13:44 +0200 |
| commit | 5bfb151f1f565e6082304a30e8c81dfb6ed0b0c8 (patch) | |
| tree | 331727c29645788035c4f4b0e617f8f0c9c52e1d /drivers/ide/sl82c105.c | |
| parent | 3779f818a42879038c4be8bc83123432b774279d (diff) | |
| download | lwn-5bfb151f1f565e6082304a30e8c81dfb6ed0b0c8.tar.gz lwn-5bfb151f1f565e6082304a30e8c81dfb6ed0b0c8.zip | |
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>
Diffstat (limited to 'drivers/ide/sl82c105.c')
| -rw-r--r-- | drivers/ide/sl82c105.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c index 6246bea585c4..d698da470d6f 100644 --- a/drivers/ide/sl82c105.c +++ b/drivers/ide/sl82c105.c @@ -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; } |