1 /* ir-raw-event.c - handle IR Pulse/Space event
3 * Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
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.
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.
15 #include <media/ir-core.h>
16 #include <linux/spinlock.h>
18 /* Used to handle IR raw handler extensions */
19 static LIST_HEAD(rc_map_list);
20 static spinlock_t rc_map_lock;
23 static struct rc_keymap *seek_rc_map(const char *name)
25 struct rc_keymap *map = NULL;
27 spin_lock(&rc_map_lock);
28 list_for_each_entry(map, &rc_map_list, list) {
29 if (!strcmp(name, map->map.name)) {
30 spin_unlock(&rc_map_lock);
34 spin_unlock(&rc_map_lock);
39 struct ir_scancode_table *get_rc_map(const char *name)
43 struct rc_keymap *map;
45 map = seek_rc_map(name);
48 rc = request_module(name);
50 printk(KERN_ERR "Couldn't load IR keymap %s\n", name);
53 msleep(20); /* Give some time for IR to register */
55 map = seek_rc_map(name);
59 printk(KERN_ERR "IR keymap %s not found\n", name);
63 printk(KERN_INFO "Registered IR keymap %s\n", map->map.name);
67 EXPORT_SYMBOL_GPL(get_rc_map);
69 int ir_register_map(struct rc_keymap *map)
71 spin_lock(&rc_map_lock);
72 list_add_tail(&map->list, &rc_map_list);
73 spin_unlock(&rc_map_lock);
76 EXPORT_SYMBOL_GPL(ir_register_map);
78 void ir_unregister_map(struct rc_keymap *map)
80 spin_lock(&rc_map_lock);
82 spin_unlock(&rc_map_lock);
84 EXPORT_SYMBOL_GPL(ir_unregister_map);
86 void rc_map_init(void)
88 spin_lock_init(&rc_map_lock);