Commit | Line | Data |
---|---|---|
7f92b11c BZ |
1 | #include <linux/kernel.h> |
2 | #include <linux/ide.h> | |
3 | ||
4 | static void ide_legacy_init_one(hw_regs_t **hws, hw_regs_t *hw, | |
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; | |
36 | hw->chipset = d->chipset; | |
37 | hw->config = config; | |
38 | ||
39 | hws[port_no] = hw; | |
40 | } | |
41 | ||
42 | int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) | |
43 | { | |
44 | hw_regs_t hw[2], *hws[] = { NULL, NULL, NULL, NULL }; | |
45 | ||
46 | memset(&hw, 0, sizeof(hw)); | |
47 | ||
48 | if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) | |
49 | ide_legacy_init_one(hws, &hw[0], 0, d, config); | |
50 | ide_legacy_init_one(hws, &hw[1], 1, d, config); | |
51 | ||
52 | if (hws[0] == NULL && hws[1] == NULL && | |
53 | (d->host_flags & IDE_HFLAG_SINGLE)) | |
54 | return -ENOENT; | |
55 | ||
56 | return ide_host_add(d, hws, NULL); | |
57 | } | |
58 | EXPORT_SYMBOL_GPL(ide_legacy_device_add); |