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pata_hpt37x: use ATA_DMA_* constants

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Use ATA_DMA_* constants instead of the bare numbers for the BMIDE registers.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Sergei Shtylyov 2009-12-05 00:37:43 +04:00 committed by Jeff Garzik
parent 4805a1b0e6
commit 56f46f8c87
1 changed files with 10 additions and 9 deletions
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19
drivers/ata/pata_hpt37x.c
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@ -461,24 +461,25 @@ static void hpt370_bmdma_stop(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 dma_stat = ioread8(ap->ioaddr.bmdma_addr + 2);
u8 dma_cmd;
void __iomem *bmdma = ap->ioaddr.bmdma_addr;
u8 dma_stat = ioread8(bmdma + ATA_DMA_STATUS);
u8 dma_cmd;
if (dma_stat & 0x01) {
if (dma_stat & ATA_DMA_ACTIVE) {
udelay(20);
dma_stat = ioread8(bmdma + 2);
dma_stat = ioread8(bmdma + ATA_DMA_STATUS);
}
if (dma_stat & 0x01) {
if (dma_stat & ATA_DMA_ACTIVE) {
/* Clear the engine */
pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
udelay(10);
/* Stop DMA */
dma_cmd = ioread8(bmdma );
iowrite8(dma_cmd & 0xFE, bmdma);
dma_cmd = ioread8(bmdma + ATA_DMA_CMD);
iowrite8(dma_cmd & ~ATA_DMA_START, bmdma + ATA_DMA_CMD);
/* Clear Error */
dma_stat = ioread8(bmdma + 2);
iowrite8(dma_stat | 0x06 , bmdma + 2);
dma_stat = ioread8(bmdma + ATA_DMA_STATUS);
iowrite8(dma_stat | ATA_DMA_INTR | ATA_DMA_ERR,
bmdma + ATA_DMA_STATUS);
/* Clear the engine */
pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
udelay(10);