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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 09:37:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 09:37:45 -0700
commitfb091be08d1acf184e8801dfdcace6e0cb19b1fe (patch)
treecbd0c4200fd8628d592167589ca790e36fc4ae26 /drivers/media/IR/rc-map.c
parentbd7fc2f2d807fdb254f7efc542f8eec3f23e289e (diff)
parente8d0416796d43a950ec7b65629e53419b2e22453 (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.c84
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);
+