From: Maxim Levitsky <maximlevitsky@gmail.com>
Date: Sat, 31 Jul 2010 14:59:18 +0000 (-0300)
Subject: V4L/DVB: IR: JVC: make repeat work
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=39b2c0687b238d8bce19d5e8c0c8dc4e7fe50ed4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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: