]>
Commit | Line | Data |
---|---|---|
ffd4f6f0 BZ |
1 | |
2 | #include <linux/kernel.h> | |
3 | #include <linux/init.h> | |
4 | #include <linux/module.h> | |
5 | #include <linux/ide.h> | |
6 | ||
2c4be251 BZ |
7 | #define DRV_NAME "ide-4drives" |
8 | ||
ef87f8d0 | 9 | static int probe_4drives; |
ffd4f6f0 BZ |
10 | |
11 | module_param_named(probe, probe_4drives, bool, 0); | |
12 | MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port"); | |
13 | ||
e6d95bd1 | 14 | static void ide_4drives_init_dev(ide_drive_t *drive) |
f333f92b | 15 | { |
e6d95bd1 | 16 | if (drive->hwif->channel) |
7f612f27 | 17 | drive->select ^= 0x20; |
f333f92b BZ |
18 | } |
19 | ||
20 | static const struct ide_port_ops ide_4drives_port_ops = { | |
e6d95bd1 | 21 | .init_dev = ide_4drives_init_dev, |
f333f92b BZ |
22 | }; |
23 | ||
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, | |
27 | }; | |
28 | ||
ffd4f6f0 BZ |
29 | static int __init ide_4drives_init(void) |
30 | { | |
2c4be251 | 31 | unsigned long base = 0x1f0, ctl = 0x3f6; |
48c3c107 | 32 | hw_regs_t hw, *hws[] = { &hw, &hw, NULL, NULL }; |
ffd4f6f0 BZ |
33 | |
34 | if (probe_4drives == 0) | |
35 | return -ENODEV; | |
36 | ||
2c4be251 BZ |
37 | if (!request_region(base, 8, DRV_NAME)) { |
38 | printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", | |
39 | DRV_NAME, base, base + 7); | |
40 | return -EBUSY; | |
41 | } | |
42 | ||
43 | if (!request_region(ctl, 1, DRV_NAME)) { | |
44 | printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", | |
45 | DRV_NAME, ctl); | |
46 | release_region(base, 8); | |
47 | return -EBUSY; | |
48 | } | |
49 | ||
dfd87842 | 50 | memset(&hw, 0, sizeof(hw)); |
ffd4f6f0 | 51 | |
2c4be251 | 52 | ide_std_init_ports(&hw, base, ctl); |
dfd87842 BZ |
53 | hw.irq = 14; |
54 | hw.chipset = ide_4drives; | |
ffd4f6f0 | 55 | |
6f904d01 | 56 | return ide_host_add(&ide_4drives_port_info, hws, NULL); |
ffd4f6f0 BZ |
57 | } |
58 | ||
59 | module_init(ide_4drives_init); | |
60 | ||
61 | MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); | |
62 | MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support"); | |
63 | MODULE_LICENSE("GPL"); |