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path: root/drivers/ide/pci/sc1200.c
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Diffstat (limited to 'drivers/ide/pci/sc1200.c')
-rw-r--r--drivers/ide/pci/sc1200.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 8efaed16fea3..f1a8758e3a99 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -14,7 +14,6 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ide.h>
@@ -104,17 +103,19 @@ static void sc1200_tunepio(ide_drive_t *drive, u8 pio)
static u8 sc1200_udma_filter(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- ide_drive_t *mate = &hwif->drives[(drive->dn & 1) ^ 1];
- struct hd_driveid *mateid = mate->id;
+ ide_drive_t *mate = ide_get_pair_dev(drive);
+ u16 *mateid = mate->id;
u8 mask = hwif->ultra_mask;
- if (mate->present == 0)
+ if (mate == NULL)
goto out;
- if ((mateid->capability & 1) && __ide_dma_bad_drive(mate) == 0) {
- if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7))
+ if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) {
+ if ((mateid[ATA_ID_FIELD_VALID] & 4) &&
+ (mateid[ATA_ID_UDMA_MODES] & 7))
goto out;
- if ((mateid->field_valid & 2) && (mateid->dma_mword & 7))
+ if ((mateid[ATA_ID_FIELD_VALID] & 2) &&
+ (mateid[ATA_ID_MWDMA_MODES] & 7))
mask = 0;
}
out:
@@ -125,7 +126,6 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = to_pci_dev(hwif->dev);
- int unit = drive->select.b.unit;
unsigned int reg, timings;
unsigned short pci_clock;
unsigned int basereg = hwif->channel ? 0x50 : 0x40;
@@ -154,7 +154,7 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
else
timings = mwdma_timing[pci_clock][mode - XFER_MW_DMA_0];
- if (unit == 0) { /* are we configuring drive0? */
+ if ((drive->dn & 1) == 0) {
pci_read_config_dword(dev, basereg + 4, &reg);
timings |= reg & 0x80000000; /* preserve PIO format bit */
pci_write_config_dword(dev, basereg + 4, timings);
@@ -215,7 +215,8 @@ static void sc1200_set_pio_mode(ide_drive_t *drive, const u8 pio)
if (mode != -1) {
printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
ide_dma_off_quietly(drive);
- if (ide_set_dma_mode(drive, mode) == 0 && drive->using_dma)
+ if (ide_set_dma_mode(drive, mode) == 0 &&
+ (drive->dev_flags & IDE_DFLAG_USING_DMA))
hwif->dma_ops->dma_host_set(drive, 1);
return;
}
@@ -327,7 +328,7 @@ static const struct pci_device_id sc1200_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl);
-static struct pci_driver driver = {
+static struct pci_driver sc1200_pci_driver = {
.name = "SC1200_IDE",
.id_table = sc1200_pci_tbl,
.probe = sc1200_init_one,
@@ -340,12 +341,12 @@ static struct pci_driver driver = {
static int __init sc1200_ide_init(void)
{
- return ide_pci_register_driver(&driver);
+ return ide_pci_register_driver(&sc1200_pci_driver);
}
static void __exit sc1200_ide_exit(void)
{
- pci_unregister_driver(&driver);
+ pci_unregister_driver(&sc1200_pci_driver);
}
module_init(sc1200_ide_init);