Commit | Line | Data |
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7f92b11c BZ |
1 | #include <linux/kernel.h> |
2 | #include <linux/ide.h> | |
3 | ||
9f36d314 | 4 | static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw, |
7f92b11c BZ |
5 | u8 port_no, const struct ide_port_info *d, |
6 | unsigned long config) | |
7 | { | |
8 | unsigned long base, ctl; | |
9 | int irq; | |
10 | ||
11 | if (port_no == 0) { | |
12 | base = 0x1f0; | |
13 | ctl = 0x3f6; | |
14 | irq = 14; | |
15 | } else { | |
16 | base = 0x170; | |
17 | ctl = 0x376; | |
18 | irq = 15; | |
19 | } | |
20 | ||
21 | if (!request_region(base, 8, d->name)) { | |
22 | printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", | |
23 | d->name, base, base + 7); | |
24 | return; | |
25 | } | |
26 | ||
27 | if (!request_region(ctl, 1, d->name)) { | |
28 | printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", | |
29 | d->name, ctl); | |
30 | release_region(base, 8); | |
31 | return; | |
32 | } | |
33 | ||
34 | ide_std_init_ports(hw, base, ctl); | |
35 | hw->irq = irq; | |
7f92b11c BZ |
36 | hw->config = config; |
37 | ||
38 | hws[port_no] = hw; | |
39 | } | |
40 | ||
41 | int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) | |
42 | { | |
9f36d314 | 43 | struct ide_hw hw[2], *hws[] = { NULL, NULL }; |
7f92b11c BZ |
44 | |
45 | memset(&hw, 0, sizeof(hw)); | |
46 | ||
47 | if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) | |
48 | ide_legacy_init_one(hws, &hw[0], 0, d, config); | |
49 | ide_legacy_init_one(hws, &hw[1], 1, d, config); | |
50 | ||
51 | if (hws[0] == NULL && hws[1] == NULL && | |
52 | (d->host_flags & IDE_HFLAG_SINGLE)) | |
53 | return -ENOENT; | |
54 | ||
dca39830 | 55 | return ide_host_add(d, hws, 2, NULL); |
7f92b11c BZ |
56 | } |
57 | EXPORT_SYMBOL_GPL(ide_legacy_device_add); |