diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/IR/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/IR/rc-map.c | 75 |
2 files changed, 76 insertions, 1 deletions
diff --git a/drivers/media/IR/Makefile b/drivers/media/IR/Makefile index 6140b2712c8a..3a4f590d0bbb 100644 --- a/drivers/media/IR/Makefile +++ b/drivers/media/IR/Makefile @@ -1,5 +1,5 @@ ir-common-objs := ir-functions.o ir-keymaps.o -ir-core-objs := ir-keytable.o ir-sysfs.o ir-raw-event.o +ir-core-objs := ir-keytable.o ir-sysfs.o ir-raw-event.o rc-map.o obj-$(CONFIG_IR_CORE) += ir-core.o obj-$(CONFIG_VIDEO_IR) += ir-common.o diff --git a/drivers/media/IR/rc-map.c b/drivers/media/IR/rc-map.c new file mode 100644 index 000000000000..aa269f5ef3fe --- /dev/null +++ b/drivers/media/IR/rc-map.c @@ -0,0 +1,75 @@ +/* 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); |
