-/**
- * sil_sata_busproc - bus isolation IOCTL
- * @drive: drive to isolate/restore
- * @state: bus state to set
- *
- * Used by the SII3112 to handle bus isolation. As this is a
- * SATA controller the work required is quite limited, we
- * just have to clean up the statistics
- */
-
-static int sil_sata_busproc(ide_drive_t * drive, int state)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u32 stat_config = 0;
- unsigned long addr = siimage_selreg(hwif, 0);
-
- if (hwif->mmio)
- stat_config = readl((void __iomem *)addr);
- else
- pci_read_config_dword(dev, addr, &stat_config);
-
- switch (state) {
- case BUSSTATE_ON:
- hwif->drives[0].failures = 0;
- hwif->drives[1].failures = 0;
- break;
- case BUSSTATE_OFF:
- hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
- hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
- break;
- case BUSSTATE_TRISTATE:
- hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
- hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
- break;
- default:
- return -EINVAL;
- }
- hwif->bus_state = state;
- return 0;
-}
-