projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 7f92b11c | 1 | #include <linux/kernel.h> |
| 38789fda | 2 | #include <linux/export.h> |
| 7f92b11c BZ |
3 | #include <linux/ide.h> |
| 4 | ||
| 9f36d314 | 5 | static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw, |
| 7f92b11c BZ |
6 | u8 port_no, const struct ide_port_info *d, |
| 7 | unsigned long config) | |
| 8 | { | |
| 9 | unsigned long base, ctl; | |
| 10 | int irq; | |
| 11 | ||
| 12 | if (port_no == 0) { | |
| 13 | base = 0x1f0; | |
| 14 | ctl = 0x3f6; | |
| 15 | irq = 14; | |
| 16 | } else { | |
| 17 | base = 0x170; | |
| 18 | ctl = 0x376; | |
| 19 | irq = 15; | |
| 20 | } | |
| 21 | ||
| 22 | if (!request_region(base, 8, d->name)) { | |
| 23 | printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", | |
| 24 | d->name, base, base + 7); | |
| 25 | return; | |
| 26 | } | |
| 27 | ||
| 28 | if (!request_region(ctl, 1, d->name)) { | |
| 29 | printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", | |
| 30 | d->name, ctl); | |
| 31 | release_region(base, 8); | |
| 32 | return; | |
| 33 | } | |
| 34 | ||
| 35 | ide_std_init_ports(hw, base, ctl); | |
| 36 | hw->irq = irq; | |
| 7f92b11c BZ |
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 | { | |
| 9f36d314 | 44 | struct ide_hw hw[2], *hws[] = { NULL, NULL }; |
| 7f92b11c BZ |
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 | ||
| dca39830 | 56 | return ide_host_add(d, hws, 2, NULL); |
| 7f92b11c BZ |
57 | } |
| 58 | EXPORT_SYMBOL_GPL(ide_legacy_device_add); |