V4L/DVB (13532): ir-common: Add infrastructure to use a dynamic keycode table

V4L drivers use an static keycode vector with 128 entries, where the scancode
indexes the keycode. While this works, it limits the scancodes to have only
7 bits, not allowing for example full RC5 codes.

Instead of implementing the same code on every V4L driver, provide a common
infrastructure to handle the bigger tables, minimizing the changes inside
each driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 5964145d65e6..805f1e09770f 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -106,6 +106,8 @@ struct card_ir {
         struct tasklet_struct   tlet;
 };
 
+/* Routines from ir-functions.c */
+
 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
                    int ir_type, struct ir_scancode_table *ir_codes);
 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
@@ -120,7 +122,15 @@ u32  ir_rc5_decode(unsigned int code);
 void ir_rc5_timer_end(unsigned long data);
 void ir_rc5_timer_keyup(unsigned long data);
 
-/* Keymaps to be used by other modules */
+/* Routines from ir-keytable.c */
+
+u32 ir_g_keycode_from_table(struct input_dev *input_dev,
+                            u32 scancode);
+
+int ir_set_keycode_table(struct input_dev *input_dev,
+                         struct ir_scancode_table *rc_tab);
+
+/* scancode->keycode map tables from ir-keymaps.c */
 
 extern struct ir_scancode_table ir_codes_empty_table;
 extern struct ir_scancode_table ir_codes_avermedia_table;