V4L/DVB (4961): Add support for the ASUS P7131 remote control

Besides adding the board specific code, this patch moves
the RC5 decoding code from bt8xx to ir-functions.c to make it available 
for all drivers.

Signed-off-by: Marc Fargas <telenieko.telenieko.com>
Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de>
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/include/media/ir-common.h b/include/media/ir-common.h
index 4bb0ad810179..c60a30997973 100644
--- a/include/media/ir-common.h
+++ b/include/media/ir-common.h
@@ -36,6 +36,14 @@
 #define IR_KEYCODE(tab,code)    (((unsigned)code < IR_KEYTAB_SIZE) \
                                  ? tab[code] : KEY_RESERVED)
 
+extern int ir_rc5_remote_gap;
+extern int ir_rc5_key_timeout;
+
+#define RC5_START(x)    (((x)>>12)&3)
+#define RC5_TOGGLE(x)   (((x)>>11)&1)
+#define RC5_ADDR(x)     (((x)>>6)&31)
+#define RC5_INSTR(x)    ((x)&63)
+
 struct ir_input_state {
         /* configuration */
         int                ir_type;
@@ -48,6 +56,40 @@ struct ir_input_state {
         int                keypressed;  /* current state */
 };
 
+/* this was saa7134_ir and bttv_ir, moved here for
+ * rc5 decoding. */
+struct card_ir {
+        struct input_dev        *dev;
+        struct ir_input_state   ir;
+        char                    name[32];
+        char                    phys[32];
+
+        /* Usual gpio signalling */
+
+        u32                     mask_keycode;
+        u32                     mask_keydown;
+        u32                     mask_keyup;
+        u32                     polling;
+        u32                     last_gpio;
+        int                     shift_by;
+        int                     start; // What should RC5_START() be
+        int                     addr; // What RC5_ADDR() should be.
+        int                     rc5_key_timeout;
+        int                     rc5_remote_gap;
+        struct work_struct      work;
+        struct timer_list       timer;
+
+        /* RC5 gpio */
+        u32 rc5_gpio;
+        struct timer_list timer_end;    /* timer_end for code completion */
+        struct timer_list timer_keyup;  /* timer_end for key release */
+        u32 last_rc5;                   /* last good rc5 code */
+        u32 last_bit;                   /* last raw bit seen */
+        u32 code;                       /* raw code under construction */
+        struct timeval base_time;       /* time of last seen code */
+        int active;                     /* building raw code */
+};
+
 void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
                    int ir_type, IR_KEYTAB_TYPE *ir_codes);
 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir);
@@ -58,6 +100,10 @@ int  ir_dump_samples(u32 *samples, int count);
 int  ir_decode_biphase(u32 *samples, int count, int low, int high);
 int  ir_decode_pulsedistance(u32 *samples, int count, int low, int high);
 
+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 */
 
 extern IR_KEYTAB_TYPE ir_codes_empty[IR_KEYTAB_SIZE];
@@ -94,6 +140,7 @@ extern IR_KEYTAB_TYPE ir_codes_npgtech[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_norwood[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_proteus_2309[IR_KEYTAB_SIZE];
 extern IR_KEYTAB_TYPE ir_codes_budget_ci_old[IR_KEYTAB_SIZE];
+extern IR_KEYTAB_TYPE ir_codes_asus_pc39[IR_KEYTAB_SIZE];
 
 #endif