static u8 ali_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned long flags;
u8 cbl = ATA_CBL_PATA40, tmpbyte;
local_irq_save(flags);
if (m5229_revision >= 0xC2) {
/*
* m5229 80-pin cable detection (from Host View)
*
* 0x4a bit0 is 0 => primary channel has 80-pin
* 0x4a bit1 is 0 => secondary channel has 80-pin
*
* Certain laptops use short but suitable cables
* and don't implement the detect logic.
*/
if (ali_cable_override(dev))
cbl = ATA_CBL_PATA40_SHORT;
else {
pci_read_config_byte(dev, 0x4a, &tmpbyte);
if ((tmpbyte & (1 << hwif->channel)) == 0)
cbl = ATA_CBL_PATA80;
}
}
local_irq_restore(flags);
return cbl;
}
static u8 ali_cable_detect(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
unsigned long flags;
u8 cbl = ATA_CBL_PATA40, tmpbyte;
local_irq_save(flags);
if (m5229_revision >= 0xC2) {
if (ali_cable_override(dev))
cbl = ATA_CBL_PATA40_SHORT;
else {
pci_read_config_byte(dev, 0x4a, &tmpbyte);
if ((tmpbyte & (1 << hwif->channel)) == 0)
cbl = ATA_CBL_PATA80;
}
}
local_irq_restore(flags);
return cbl;
}
