47 lines
959 B
C
47 lines
959 B
C
|
|
||
|
|
#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");
|