V4L/DVB: ir-core: dynamically load the compiled IR protocols
Instead of hardcoding the protocols into ir-core, add a register interface
for the IR protocol decoders, and convert ir-nec-decoder into a client of
ir-core.
With this approach, it is possible to dynamically load the needed IR protocols,
and to add a RAW IR interface module, registered as one IR raw protocol decoder.
This patch opens a way to register a lirc_dev interface to work as an userspace
IR protocol decoder.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index 8d8ed7e..c377bf4 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -1,6 +1,8 @@
/*
* Remote Controller core header
*
+ * Copyright (C) 2009-2010 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.
@@ -80,6 +82,14 @@
int keypressed; /* current state */
};
+struct ir_raw_handler {
+ struct list_head list;
+
+ int (*decode)(struct input_dev *input_dev,
+ struct ir_raw_event *evs,
+ int len);
+};
+
#define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
/* Routines from ir-keytable.c */
@@ -104,11 +114,20 @@
void ir_raw_event_unregister(struct input_dev *input_dev);
int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
int ir_raw_event_handle(struct input_dev *input_dev);
+int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
+void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
+
+#ifdef MODULE
+void ir_raw_init(void);
+#else
+#define ir_raw_init() 0
+#endif
/* from ir-nec-decoder.c */
-int ir_nec_decode(struct input_dev *input_dev,
- struct ir_raw_event *evs,
- int len);
-
-
+#ifdef CONFIG_IR_NEC_DECODER_MODULE
+#define load_nec_decode() request_module("ir-nec-decoder")
+#else
+#define load_nec_decode() 0
#endif
+
+#endif /* _IR_CORE */