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>
git-mirror · Aug 9, 2010 · b378f43 · b378f43
1 parent 86ff071
commit b378f43
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Showing 6 changed files with 33 additions and 48 deletions.
diff --git a/drivers/media/IR/ir-core-priv.h b/drivers/media/IR/ir-core-priv.h
@@ -126,7 +126,8 @@ int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
 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
@@ -325,13 +325,15 @@ static int __init ir_core_init(void)
 
 	/* Initialize/load the decoders/keymap code that will be used */
 	ir_raw_init();
+	ir_rcmap_init();
 
 	return 0;
 }
 
 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
@@ -19,7 +19,6 @@ obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \
 			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
diff --git a/drivers/media/IR/rc-map.c b/drivers/media/IR/rc-map.c
@@ -82,3 +82,26 @@ void ir_unregister_map(struct rc_keymap *map)
 }
 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
@@ -110,8 +110,12 @@ static inline int ir_input_register(struct input_dev *dev,
 		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)