76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
|
/* ir-raw-event.c - handle IR Pulse/Space event
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation version 2 of the License.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <media/ir-core.h>
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
|
||
|
|
/* Used to handle IR raw handler extensions */
|
||
|
|
static LIST_HEAD(rc_map_list);
|
||
|
|
static spinlock_t rc_map_lock;
|
||
|
|
|
||
|
|
|
||
|
|
static struct rc_keymap *seek_rc_map(const char *name)
|
||
|
|
{
|
||
|
|
struct rc_keymap *map = NULL;
|
||
|
|
|
||
|
|
spin_lock(&rc_map_lock);
|
||
|
|
list_for_each_entry(map, &rc_map_list, list) {
|
||
|
|
if (!strcmp(name, map->map.name))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
spin_unlock(&rc_map_lock);
|
||
|
|
|
||
|
|
return map;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ir_scancode_table *get_rc_map(const char *name)
|
||
|
|
{
|
||
|
|
int rc = 0;
|
||
|
|
|
||
|
|
struct rc_keymap *map;
|
||
|
|
|
||
|
|
map = seek_rc_map(name);
|
||
|
|
#ifdef MODULE
|
||
|
|
if (!map) {
|
||
|
|
rc = request_module("name");
|
||
|
|
if (rc < 0)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
map = seek_rc_map(name);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
if (!map)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
return &map->map;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(get_rc_map);
|
||
|
|
|
||
|
|
int ir_register_map(struct rc_keymap *map)
|
||
|
|
{
|
||
|
|
spin_lock(&rc_map_lock);
|
||
|
|
list_add_tail(&map->list, &rc_map_list);
|
||
|
|
spin_unlock(&rc_map_lock);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(ir_raw_handler_register);
|
||
|
|
|
||
|
|
void ir_unregister_map(struct rc_keymap *map)
|
||
|
|
{
|
||
|
|
spin_lock(&rc_map_lock);
|
||
|
|
list_del(&map->list);
|
||
|
|
spin_unlock(&rc_map_lock);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(ir_raw_handler_unregister);
|