git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 9ce50c1a MCC |
1 | /* ir-raw-event.c - handle IR Pulse/Space event |
| 2 | * | |
| 3 | * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License as published by | |
| 7 | * the Free Software Foundation version 2 of the License. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <media/ir-core.h> | |
| 16 | #include <linux/spinlock.h> | |
| 17 | ||
| 18 | /* Used to handle IR raw handler extensions */ | |
| 19 | static LIST_HEAD(rc_map_list); | |
| 6eb9435b | 20 | static DEFINE_SPINLOCK(rc_map_lock); |
| 9ce50c1a MCC |
21 | |
| 22 | static struct rc_keymap *seek_rc_map(const char *name) | |
| 23 | { | |
| 24 | struct rc_keymap *map = NULL; | |
| 25 | ||
| 26 | spin_lock(&rc_map_lock); | |
| 27 | list_for_each_entry(map, &rc_map_list, list) { | |
| 02858eed MCC |
28 | if (!strcmp(name, map->map.name)) { |
| 29 | spin_unlock(&rc_map_lock); | |
| 30 | return map; | |
| 31 | } | |
| 9ce50c1a MCC |
32 | } |
| 33 | spin_unlock(&rc_map_lock); | |
| 34 | ||
| 02858eed | 35 | return NULL; |
| 9ce50c1a MCC |
36 | } |
| 37 | ||
| 38 | struct ir_scancode_table *get_rc_map(const char *name) | |
| 39 | { | |
| 9ce50c1a MCC |
40 | |
| 41 | struct rc_keymap *map; | |
| 42 | ||
| 43 | map = seek_rc_map(name); | |
| 44 | #ifdef MODULE | |
| 45 | if (!map) { | |
| 5fa2989f | 46 | int rc = request_module(name); |
| 02858eed MCC |
47 | if (rc < 0) { |
| 48 | printk(KERN_ERR "Couldn't load IR keymap %s\n", name); | |
| 9ce50c1a | 49 | return NULL; |
| 02858eed MCC |
50 | } |
| 51 | msleep(20); /* Give some time for IR to register */ | |
| 9ce50c1a MCC |
52 | |
| 53 | map = seek_rc_map(name); | |
| 54 | } | |
| 55 | #endif | |
| 02858eed MCC |
56 | if (!map) { |
| 57 | printk(KERN_ERR "IR keymap %s not found\n", name); | |
| 9ce50c1a | 58 | return NULL; |
| 02858eed MCC |
59 | } |
| 60 | ||
| 61 | printk(KERN_INFO "Registered IR keymap %s\n", map->map.name); | |
| 9ce50c1a MCC |
62 | |
| 63 | return &map->map; | |
| 64 | } | |
| 65 | EXPORT_SYMBOL_GPL(get_rc_map); | |
| 66 | ||
| 67 | int ir_register_map(struct rc_keymap *map) | |
| 68 | { | |
| 69 | spin_lock(&rc_map_lock); | |
| 70 | list_add_tail(&map->list, &rc_map_list); | |
| 71 | spin_unlock(&rc_map_lock); | |
| 72 | return 0; | |
| 73 | } | |
| 6686fa69 | 74 | EXPORT_SYMBOL_GPL(ir_register_map); |
| 9ce50c1a MCC |
75 | |
| 76 | void ir_unregister_map(struct rc_keymap *map) | |
| 77 | { | |
| 78 | spin_lock(&rc_map_lock); | |
| 79 | list_del(&map->list); | |
| 80 | spin_unlock(&rc_map_lock); | |
| 81 | } | |
| 6686fa69 | 82 | EXPORT_SYMBOL_GPL(ir_unregister_map); |
| 02858eed | 83 |