pata_hpt37x: use ATA_DMA_* constants
Sergei Shtylyov [Fri, 4 Dec 2009 20:37:43 +0000 (00:37 +0400)]
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>

drivers/ata/pata_hpt37x.c

index 4224cfc..342aaaa 100644 (file)
@@ -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);