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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-11-10 02:00:14 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-12-29 10:16:36 (GMT) |
commit | 32cf86f6d16367db5a10039c1dd938a2427d697c (patch) | |
tree | 21e6716b64d80d280da2561efd873430ca833f08 /drivers/media/rc/rc-map.c | |
parent | 3ffea4988be3f3fa65f2104ba31eff2b5e0e82a0 (diff) | |
download | linux-fsl-qoriq-32cf86f6d16367db5a10039c1dd938a2427d697c.tar.xz |
[media] rename drivers/media/IR to drives/media/rc
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/rc/rc-map.c')
-rw-r--r-- | drivers/media/rc/rc-map.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/media/rc/rc-map.c b/drivers/media/rc/rc-map.c new file mode 100644 index 0000000..689143f --- /dev/null +++ b/drivers/media/rc/rc-map.c @@ -0,0 +1,107 @@ +/* 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> +#include <linux/delay.h> + +/* Used to handle IR raw handler extensions */ +static LIST_HEAD(rc_map_list); +static DEFINE_SPINLOCK(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) +{ + + struct rc_keymap *map; + + map = seek_rc_map(name); +#ifdef MODULE + if (!map) { + int 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); + + +static struct ir_scancode empty[] = { + { 0x2a, KEY_COFFEE }, +}; + +static struct rc_keymap empty_map = { + .map = { + .scan = empty, + .size = ARRAY_SIZE(empty), + .ir_type = IR_TYPE_UNKNOWN, /* Legacy IR type */ + .name = RC_MAP_EMPTY, + } +}; + +int ir_rcmap_init(void) +{ + return ir_register_map(&empty_map); +} + +void ir_rcmap_cleanup(void) +{ + ir_unregister_map(&empty_map); +} |