static void artop6260_set_dmamode (struct ata_port *ap, struct ata_device *adev) { unsigned int pio = adev->pio_mode - XFER_PIO_0; struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ultra; if (adev->dma_mode == XFER_MW_DMA_0) pio = 1; else pio = 4; /* Load the PIO timing active/recovery bits */ artop6260_load_piomode(ap, adev, pio); /* Add ultra DMA bits if in UDMA mode */ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra); ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */ if (adev->dma_mode >= XFER_UDMA_0) { u8 mode = adev->dma_mode - XFER_UDMA_0 + 1 - clock; if (mode == 0) mode = 1; ultra |= (mode << (4 * adev->devno)); } pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra); }
static void artop6260_set_dmamode (struct ata_port *ap, struct ata_device *adev) { unsigned int pio = adev->pio_mode - XFER_PIO_0; struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ultra; if (adev->dma_mode == XFER_MW_DMA_0) pio = 1; else pio = 4; artop6260_load_piomode(ap, adev, pio); pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra); ultra &= ~(7 << (4 * adev->devno)); if (adev->dma_mode >= XFER_UDMA_0) { u8 mode = adev->dma_mode - XFER_UDMA_0 + 1 - clock; if (mode == 0) mode = 1; ultra |= (mode << (4 * adev->devno)); } pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra); }
static void artop6260_set_piomode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ultra; artop6260_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0); /* Clear the UDMA mode bits (set_dmamode will redo this if needed) */ pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra); ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */ pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra); }
static void artop6260_set_piomode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ultra; artop6260_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0); pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra); ultra &= ~(7 << (4 * adev->devno)); pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra); }