| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/ide.h> |
| |
| int probe_4drives = 0; |
| |
| module_param_named(probe, probe_4drives, bool, 0); |
| MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port"); |
| |
| static int __init ide_4drives_init(void) |
| { |
| ide_hwif_t *hwif, *mate; |
| u8 idx[4] = { 0, 1, 0xff, 0xff }; |
| |
| if (probe_4drives == 0) |
| return -ENODEV; |
| |
| hwif = &ide_hwifs[0]; |
| mate = &ide_hwifs[1]; |
| |
| memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); |
| |
| mate->irq = hwif->irq; |
| |
| mate->chipset = hwif->chipset = ide_4drives; |
| |
| mate->drives[0].select.all ^= 0x20; |
| mate->drives[1].select.all ^= 0x20; |
| |
| hwif->mate = mate; |
| mate->mate = hwif; |
| |
| hwif->serialized = mate->serialized = 1; |
| |
| ide_device_add(idx, NULL); |
| |
| return 0; |
| } |
| |
| module_init(ide_4drives_init); |
| |
| MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); |
| MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support"); |
| MODULE_LICENSE("GPL"); |