Commit | Line | Data |
---|---|---|
457c8996 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
7f92b11c | 2 | #include <linux/kernel.h> |
38789fda | 3 | #include <linux/export.h> |
7f92b11c BZ |
4 | #include <linux/ide.h> |
5 | ||
9f36d314 | 6 | static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw, |
7f92b11c BZ |
7 | u8 port_no, const struct ide_port_info *d, |
8 | unsigned long config) | |
9 | { | |
10 | unsigned long base, ctl; | |
11 | int irq; | |
12 | ||
13 | if (port_no == 0) { | |
14 | base = 0x1f0; | |
15 | ctl = 0x3f6; | |
16 | irq = 14; | |
17 | } else { | |
18 | base = 0x170; | |
19 | ctl = 0x376; | |
20 | irq = 15; | |
21 | } | |
22 | ||
23 | if (!request_region(base, 8, d->name)) { | |
24 | printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", | |
25 | d->name, base, base + 7); | |
26 | return; | |
27 | } | |
28 | ||
29 | if (!request_region(ctl, 1, d->name)) { | |
30 | printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", | |
31 | d->name, ctl); | |
32 | release_region(base, 8); | |
33 | return; | |
34 | } | |
35 | ||
36 | ide_std_init_ports(hw, base, ctl); | |
37 | hw->irq = irq; | |
7f92b11c BZ |
38 | hw->config = config; |
39 | ||
40 | hws[port_no] = hw; | |
41 | } | |
42 | ||
43 | int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) | |
44 | { | |
9f36d314 | 45 | struct ide_hw hw[2], *hws[] = { NULL, NULL }; |
7f92b11c BZ |
46 | |
47 | memset(&hw, 0, sizeof(hw)); | |
48 | ||
49 | if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) | |
50 | ide_legacy_init_one(hws, &hw[0], 0, d, config); | |
51 | ide_legacy_init_one(hws, &hw[1], 1, d, config); | |
52 | ||
53 | if (hws[0] == NULL && hws[1] == NULL && | |
54 | (d->host_flags & IDE_HFLAG_SINGLE)) | |
55 | return -ENOENT; | |
56 | ||
dca39830 | 57 | return ide_host_add(d, hws, 2, NULL); |
7f92b11c BZ |
58 | } |
59 | EXPORT_SYMBOL_GPL(ide_legacy_device_add); |