static void cs5536_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
static const u8 udma_timings[6] = {
0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6,
};
static const u8 mwdma_timings[3] = {
0x67, 0x21, 0x20,
};
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u32 dtc, etc;
int mode = adev->dma_mode;
int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
if (mode >= XFER_UDMA_0) {
cs5536_read(pdev, ETC, &etc);
etc &= ~(IDE_DRV_MASK << dshift);
etc |= udma_timings[mode - XFER_UDMA_0] << dshift;
cs5536_write(pdev, ETC, etc);
} else { /* MWDMA */
cs5536_read(pdev, DTC, &dtc);
dtc &= ~(IDE_DRV_MASK << dshift);
dtc |= mwdma_timings[mode - XFER_MW_DMA_0] << dshift;
cs5536_write(pdev, DTC, dtc);
}
}
static void cs5536_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
static const u8 drv_timings[5] = {
0x98, 0x55, 0x32, 0x21, 0x20,
};
static const u8 addr_timings[5] = {
0x2, 0x1, 0x0, 0x0, 0x0,
};
static const u8 cmd_timings[5] = {
0x99, 0x92, 0x90, 0x22, 0x20,
};
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
struct ata_device *pair = ata_dev_pair(adev);
int mode = adev->pio_mode - XFER_PIO_0;
int cmdmode = mode;
int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
int cshift = adev->devno ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT;
u32 dtc, cast, etc;
if (pair)
cmdmode = min(mode, pair->pio_mode - XFER_PIO_0);
cs5536_read(pdev, DTC, &dtc);
cs5536_read(pdev, CAST, &cast);
cs5536_read(pdev, ETC, &etc);
dtc &= ~(IDE_DRV_MASK << dshift);
dtc |= drv_timings[mode] << dshift;
cast &= ~(IDE_CAST_DRV_MASK << cshift);
cast |= addr_timings[mode] << cshift;
cast &= ~(IDE_CAST_CMD_MASK << IDE_CAST_CMD_SHIFT);
cast |= cmd_timings[cmdmode] << IDE_CAST_CMD_SHIFT;
etc &= ~(IDE_DRV_MASK << dshift);
etc |= IDE_ETC_NODMA << dshift;
cs5536_write(pdev, DTC, dtc);
cs5536_write(pdev, CAST, cast);
cs5536_write(pdev, ETC, etc);
}
static void cs5536_program_dtc(struct ata_device *adev, u8 tim)
{
struct pci_dev *pdev = to_pci_dev(adev->link->ap->host->dev);
int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
u32 dtc;
cs5536_read(pdev, DTC, &dtc);
dtc &= ~(IDE_DRV_MASK << dshift);
dtc |= tim << dshift;
cs5536_write(pdev, DTC, dtc);
}
