diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 09:37:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-20 09:37:45 -0700 |
commit | fb091be08d1acf184e8801dfdcace6e0cb19b1fe (patch) | |
tree | cbd0c4200fd8628d592167589ca790e36fc4ae26 /drivers/media/IR/rc-map.c | |
parent | bd7fc2f2d807fdb254f7efc542f8eec3f23e289e (diff) | |
parent | e8d0416796d43a950ec7b65629e53419b2e22453 (diff) |
Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (534 commits)
V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers
V4L/DVB: vivi and mem2mem_testdev need slab.h to build
V4L/DVB: tm6000: bugfix image position
V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET
V4L/DVB: tm6000: README - add vbi
V4L/DVB: Fix unlock logic at medusa_video_init
V4L/DVB: fix dvb frontend lockup
V4L/DVB: s2255drv: remove dead code
V4L/DVB: s2255drv: return if vdev not found
V4L/DVB: ov511: cleanup: remove unneeded null check
V4L/DVB: media/mem2mem: dereferencing free memory
V4L/DVB: media/IR: Add missing include file to rc-map.c
V4L/DVB: dvb/stv6110x: cleanup error handling
V4L/DVB: ngene: Add lgdt3303 and mt2131 deps to Kconfig
V4L/DVB: ngene: start separating out DVB functions into separate file
V4L/DVB: ngene: split out card specific code into a separate file
V4L/DVB: ngene: split out i2c code into a separate file
V4L/DVB: ngene: add initial support for digital side of Avermedia m780
V4L/DVB: ngene: properly support boards where channel 0 isn't a TS input
V4L-DVB: ngene: make sure that tuner headers are included
...
Diffstat (limited to 'drivers/media/IR/rc-map.c')
-rw-r--r-- | drivers/media/IR/rc-map.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/media/IR/rc-map.c b/drivers/media/IR/rc-map.c new file mode 100644 index 00000000000..46a8f1524b5 --- /dev/null +++ b/drivers/media/IR/rc-map.c @@ -0,0 +1,84 @@ +/* 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); + |