kernel-fxtec-pro1x/drivers/media/IR/rc-map.c
Mauro Carvalho Chehab 02858eedcb V4L/DVB: ir-core: Make use of the new IR keymap modules
Instead of using the ugly keymap sequences, use the new rc-*.ko keymap
files. For now, it is still needed to have one keymap loaded, for the
RC code to work. Later patches will remove this depenency.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-05-19 12:56:50 -03:00

90 lines
2 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)) {
spin_unlock(&rc_map_lock);
return map;
}
}
spin_unlock(&rc_map_lock);
return NULL;
}
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) {
printk(KERN_ERR "Couldn't load IR keymap %s\n", name);
return NULL;
}
msleep(20); /* Give some time for IR to register */
map = seek_rc_map(name);
}
#endif
if (!map) {
printk(KERN_ERR "IR keymap %s not found\n", name);
return NULL;
}
printk(KERN_INFO "Registered IR keymap %s\n", map->map.name);
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_register_map);
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_unregister_map);
void rc_map_init(void)
{
spin_lock_init(&rc_map_lock);
}