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 000000000000..46a8f1524b5b
--- /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);
+