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path: root/drivers/ide/pci/cs5520.c
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Diffstat (limited to 'drivers/ide/pci/cs5520.c')
-rw-r--r--drivers/ide/pci/cs5520.c29
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index d1a91bcb5b2..78058ca2ce7 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -71,7 +71,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *pdev = hwif->pci_dev;
int controller = drive->dn > 1 ? 1 : 0;
- u8 reg;
/* FIXME: if DMA = 1 do we need to set the DMA bit here ? */
@@ -91,11 +90,6 @@ static void cs5520_set_pio_mode(ide_drive_t *drive, const u8 pio)
pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1),
(cs5520_pio_clocks[pio].recovery << 4) |
(cs5520_pio_clocks[pio].assert));
-
- /* Set the DMA enable/disable flag */
- reg = inb(hwif->dma_base + 0x02 + 8*controller);
- reg |= 1<<((drive->dn&1)+5);
- outb(reg, hwif->dma_base + 0x02 + 8*controller);
}
static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
@@ -109,13 +103,23 @@ static void cs5520_set_dma_mode(ide_drive_t *drive, const u8 speed)
* We wrap the DMA activate to set the vdma flag. This is needed
* so that the IDE DMA layer issues PIO not DMA commands over the
* DMA channel
+ *
+ * ATAPI is harder so disable it for now using IDE_HFLAG_NO_ATAPI_DMA
*/
-
-static int cs5520_dma_on(ide_drive_t *drive)
+
+static void cs5520_dma_host_on(ide_drive_t *drive)
{
- /* ATAPI is harder so leave it for now */
- drive->vdma = 1;
- return 0;
+ if (drive->using_dma)
+ drive->vdma = 1;
+
+ ide_dma_host_on(drive);
+}
+
+static void cs5520_dma_host_off(ide_drive_t *drive)
+{
+ drive->vdma = 0;
+
+ ide_dma_host_off(drive);
}
static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
@@ -126,7 +130,8 @@ static void __devinit init_hwif_cs5520(ide_hwif_t *hwif)
if (hwif->dma_base == 0)
return;
- hwif->ide_dma_on = &cs5520_dma_on;
+ hwif->dma_host_on = &cs5520_dma_host_on;
+ hwif->dma_host_off = &cs5520_dma_host_off;
}
#define DECLARE_CS_DEV(name_str) \