2008-04-17 22:46:34 +00:00
|
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/ide.h>
|
|
|
|
|
2008-04-26 20:25:18 +00:00
|
|
|
#define DRV_NAME "ide-4drives"
|
|
|
|
|
2008-04-26 15:36:40 +00:00
|
|
|
int probe_4drives;
|
2008-04-17 22:46:34 +00:00
|
|
|
|
|
|
|
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;
|
2008-04-26 20:25:18 +00:00
|
|
|
unsigned long base = 0x1f0, ctl = 0x3f6;
|
2008-04-26 15:36:36 +00:00
|
|
|
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
|
2008-04-17 22:46:35 +00:00
|
|
|
hw_regs_t hw;
|
2008-04-17 22:46:34 +00:00
|
|
|
|
|
|
|
if (probe_4drives == 0)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2008-04-26 20:25:18 +00:00
|
|
|
if (!request_region(base, 8, DRV_NAME)) {
|
|
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
|
|
|
|
DRV_NAME, base, base + 7);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!request_region(ctl, 1, DRV_NAME)) {
|
|
|
|
printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
|
|
|
|
DRV_NAME, ctl);
|
|
|
|
release_region(base, 8);
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2008-04-17 22:46:35 +00:00
|
|
|
memset(&hw, 0, sizeof(hw));
|
2008-04-17 22:46:34 +00:00
|
|
|
|
2008-04-26 20:25:18 +00:00
|
|
|
ide_std_init_ports(&hw, base, ctl);
|
2008-04-17 22:46:35 +00:00
|
|
|
hw.irq = 14;
|
|
|
|
hw.chipset = ide_4drives;
|
2008-04-17 22:46:34 +00:00
|
|
|
|
2008-04-26 15:36:36 +00:00
|
|
|
hwif = ide_find_port();
|
|
|
|
if (hwif) {
|
|
|
|
ide_init_port_hw(hwif, &hw);
|
|
|
|
idx[0] = hwif->index;
|
|
|
|
}
|
|
|
|
|
|
|
|
mate = ide_find_port();
|
|
|
|
if (mate) {
|
|
|
|
ide_init_port_hw(mate, &hw);
|
|
|
|
mate->drives[0].select.all ^= 0x20;
|
|
|
|
mate->drives[1].select.all ^= 0x20;
|
|
|
|
idx[1] = mate->index;
|
|
|
|
|
|
|
|
if (hwif) {
|
|
|
|
hwif->mate = mate;
|
|
|
|
mate->mate = hwif;
|
|
|
|
hwif->serialized = mate->serialized = 1;
|
|
|
|
}
|
|
|
|
}
|
2008-04-17 22:46:34 +00:00
|
|
|
|
|
|
|
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");
|