V4L/DVB: IR: Allow not to compile keymaps in
Currently, ir device registration fails if keymap requested by driver is not found.
Fix that by always compiling in the empty keymap, and using it as a failback.
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/IR/ir-core-priv.h b/drivers/media/IR/ir-core-priv.h
index 502d477..be68172 100644
--- a/drivers/media/IR/ir-core-priv.h
+++ b/drivers/media/IR/ir-core-priv.h
@@ -126,7 +126,8 @@
void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
void ir_raw_init(void);
-
+int ir_rcmap_init(void);
+void ir_rcmap_cleanup(void);
/*
* Decoder initialization code
*
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
index 6273047..96dafc4 100644
--- a/drivers/media/IR/ir-sysfs.c
+++ b/drivers/media/IR/ir-sysfs.c
@@ -325,6 +325,7 @@
/* Initialize/load the decoders/keymap code that will be used */
ir_raw_init();
+ ir_rcmap_init();
return 0;
}
@@ -332,6 +333,7 @@
static void __exit ir_core_exit(void)
{
class_unregister(&ir_input_class);
+ ir_rcmap_cleanup();
}
module_init(ir_core_init);
diff --git a/drivers/media/IR/keymaps/Makefile b/drivers/media/IR/keymaps/Makefile
index c9fcc41..950e5d9 100644
--- a/drivers/media/IR/keymaps/Makefile
+++ b/drivers/media/IR/keymaps/Makefile
@@ -19,7 +19,6 @@
rc-dm1105-nec.o \
rc-dntv-live-dvb-t.o \
rc-dntv-live-dvbt-pro.o \
- rc-empty.o \
rc-em-terratec.o \
rc-encore-enltv2.o \
rc-encore-enltv.o \
diff --git a/drivers/media/IR/keymaps/rc-empty.c b/drivers/media/IR/keymaps/rc-empty.c
deleted file mode 100644
index 3b338d8..0000000
--- a/drivers/media/IR/keymaps/rc-empty.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/* empty.h - Keytable for empty Remote Controller
- *
- * keymap imported from ir-keymaps.c
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <media/rc-map.h>
-
-/* empty keytable, can be used as placeholder for not-yet created keytables */
-
-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,
- }
-};
-
-static int __init init_rc_map_empty(void)
-{
- return ir_register_map(&empty_map);
-}
-
-static void __exit exit_rc_map_empty(void)
-{
- ir_unregister_map(&empty_map);
-}
-
-module_init(init_rc_map_empty)
-module_exit(exit_rc_map_empty)
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
diff --git a/drivers/media/IR/rc-map.c b/drivers/media/IR/rc-map.c
index 46a8f15..689143f2 100644
--- a/drivers/media/IR/rc-map.c
+++ b/drivers/media/IR/rc-map.c
@@ -82,3 +82,26 @@
}
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);
+}
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index 513e60d..197d05a 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -110,8 +110,12 @@
return -EINVAL;
ir_codes = get_rc_map(map_name);
- if (!ir_codes)
- return -EINVAL;
+ if (!ir_codes) {
+ ir_codes = get_rc_map(RC_MAP_EMPTY);
+
+ if (!ir_codes)
+ return -EINVAL;
+ }
rc = __ir_input_register(dev, ir_codes, props, driver_name);
if (rc < 0)