2 #include <linux/kernel.h>
3 #include <linux/init.h>
4 #include <linux/module.h>
7 #define DRV_NAME "ide-4drives"
9 static int probe_4drives;
11 module_param_named(probe, probe_4drives, bool, 0);
12 MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port");
14 static void ide_4drives_init_dev(ide_drive_t *drive)
16 if (drive->hwif->channel)
17 drive->select.all ^= 0x20;
20 static const struct ide_port_ops ide_4drives_port_ops = {
21 .init_dev = ide_4drives_init_dev,
24 static const struct ide_port_info ide_4drives_port_info = {
25 .port_ops = &ide_4drives_port_ops,
26 .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA,
29 static int __init ide_4drives_init(void)
31 ide_hwif_t *hwif, *mate;
32 unsigned long base = 0x1f0, ctl = 0x3f6;
33 u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
36 if (probe_4drives == 0)
39 if (!request_region(base, 8, DRV_NAME)) {
40 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
41 DRV_NAME, base, base + 7);
45 if (!request_region(ctl, 1, DRV_NAME)) {
46 printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
48 release_region(base, 8);
52 memset(&hw, 0, sizeof(hw));
54 ide_std_init_ports(&hw, base, ctl);
56 hw.chipset = ide_4drives;
58 hwif = ide_find_port();
60 ide_init_port_hw(hwif, &hw);
64 mate = ide_find_port();
66 ide_init_port_hw(mate, &hw);
70 ide_device_add(idx, &ide_4drives_port_info);
75 module_init(ide_4drives_init);
77 MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
78 MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support");
79 MODULE_LICENSE("GPL");