static int generic_set_mode(struct ata_link *link, struct ata_device **unused)
{
struct ata_port *ap = link->ap;
const struct pci_device_id *id = ap->host->private_data;
int dma_enabled = 0;
struct ata_device *dev;
if (id->driver_data & ATA_GEN_FORCE_DMA) {
dma_enabled = 0xff;
} else if (ap->ioaddr.bmdma_addr) {
dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
}
ata_for_each_dev(dev, link, ENABLED) {
dev->pio_mode = XFER_PIO_0;
dev->dma_mode = XFER_MW_DMA_0;
if (dma_enabled & (1 << (5 + dev->devno))) {
unsigned int xfer_mask = ata_id_xfermask(dev->id);
const char *name;
if (xfer_mask & (ATA_MASK_MWDMA | ATA_MASK_UDMA))
name = ata_mode_string(xfer_mask);
else {
name = "DMA";
xfer_mask |= ata_xfer_mode2mask(XFER_MW_DMA_0);
}
ata_dev_info(dev, "configured for %s\n", name);
dev->xfer_mode = ata_xfer_mask2mode(xfer_mask);
dev->xfer_shift = ata_xfer_mode2shift(dev->xfer_mode);
dev->flags &= ~ATA_DFLAG_PIO;
} else {
ata_dev_info(dev, "configured for PIO\n");
dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
}
}
/*
* Provide our own set_mode() as we don't want to change anything that has
* already been configured..
*/
static int pata_platform_set_mode(struct ata_link *link, struct ata_device **unused)
{
struct ata_device *dev;
ata_for_each_dev(dev, link, ENABLED) {
/* We don't really care */
dev->pio_mode = dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
ata_dev_info(dev, "configured for PIO\n");
}
static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
{
struct ata_device *dev;
ata_for_each_dev(dev, link, ENABLED) {
ata_dev_info(dev, "configured for PIO0\n");
dev->pio_mode = XFER_PIO_0;
dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
}
static int rz1000_set_mode(struct ata_link *link, struct ata_device **unused)
{
struct ata_device *dev;
ata_for_each_dev(dev, link, ENABLED) {
dev->pio_mode = XFER_PIO_0;
dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
ata_dev_info(dev, "configured for PIO\n");
}
