V4L/DVB: IR: JVC: make repeat work

Currently, jvc decoder will attempt misdetect next press as a repeat
of last keypress, therefore second keypress isn't detected.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/media/IR/ir-jvc-decoder.c b/drivers/media/IR/ir-jvc-decoder.c
index 8894d8b36048..77a89c4de014 100644
--- a/drivers/media/IR/ir-jvc-decoder.c
+++ b/drivers/media/IR/ir-jvc-decoder.c
@@ -32,6 +32,7 @@ enum jvc_state {
         STATE_BIT_SPACE,
         STATE_TRAILER_PULSE,
         STATE_TRAILER_SPACE,
+        STATE_CHECK_REPEAT,
 };
 
 /**
@@ -60,6 +61,7 @@ static int ir_jvc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
         IR_dprintk(2, "JVC decode started at state %d (%uus %s)\n",
                    data->state, TO_US(ev.duration), TO_STR(ev.pulse));
 
+again:
         switch (data->state) {
 
         case STATE_INACTIVE:
@@ -149,8 +151,18 @@ static int ir_jvc_decode(struct input_dev *input_dev, struct ir_raw_event ev)
                 }
 
                 data->count = 0;
-                data->state = STATE_BIT_PULSE;
+                data->state = STATE_CHECK_REPEAT;
                 return 0;
+
+        case STATE_CHECK_REPEAT:
+                if (!ev.pulse)
+                        break;
+
+                if (eq_margin(ev.duration, JVC_HEADER_PULSE, JVC_UNIT / 2))
+                        data->state = STATE_INACTIVE;
+  else
+                        data->state = STATE_BIT_PULSE;
+                goto again;
         }
 
 out: