-static void hpt37x_set_mode(ide_drive_t *drive, const u8 speed)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- struct hpt_info *info = pci_get_drvdata(dev);
- u8 itr_addr = 0x40 + (drive->dn * 4);
- u32 old_itr = 0;
- u32 new_itr = get_speed_setting(speed, info);
- u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xcfc3ffff :
- (speed < XFER_UDMA_0 ? 0x31c001ff :
- 0x303c0000);
-
- pci_read_config_dword(dev, itr_addr, &old_itr);
- new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
-
- if (speed < XFER_MW_DMA_0)
- new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
- pci_write_config_dword(dev, itr_addr, new_itr);
-}
-