[PATCH 07/13] IR: NECX: support repeat

Maxim Levitsky
2010-07-30T02:17:51Z

This adds support for repeat detecting for NECX variant
Tested with uneversal remote

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
---
drivers/media/IR/ir-core-priv.h | 1 +
drivers/media/IR/ir-nec-decoder.c | 16 ++++++++++++++--
2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/media/IR/ir-core-priv.h b/drivers/media/IR/ir-core-priv.h
index dc26e2b..494e1f8 100644
--- a/drivers/media/IR/ir-core-priv.h
+++ b/drivers/media/IR/ir-core-priv.h
@@ -45,6 +45,7 @@ struct ir_raw_event_ctrl {
int state;
unsigned count;
u32 bits;
+ bool is_nec_x;
} nec;
struct rc5_dec {
int state;
diff --git a/drivers/media/IR/ir-nec-decoder.c b/drivers/media/IR/ir-nec-decoder.c
index 1c0cf03..59127b1 100644
--- a/drivers/media/IR/ir-nec-decoder.c
+++ b/drivers/media/IR/ir-nec-decoder.c
@@ -26,6 +26,7 @@
#define NEC_BIT_1_SPACE (3 * NEC_UNIT)
#define NEC_TRAILER_PULSE (1 * NEC_UNIT)
#define NEC_TRAILER_SPACE (10 * NEC_UNIT) /* even longer in reality */
+#define NECX_REPEAT_BITS 1

enum nec_state {
STATE_INACTIVE,
@@ -67,8 +68,11 @@ static int ir_nec_decode(struct input_dev *input_dev, struct ir_raw_event ev)
if (!ev.pulse)
break;

- if (!eq_margin(ev.duration, NEC_HEADER_PULSE, NEC_UNIT / 2) &&
- !eq_margin(ev.duration, NECX_HEADER_PULSE, NEC_UNIT / 2))
+ if (eq_margin(ev.duration, NEC_HEADER_PULSE, NEC_UNIT / 2))
+ data->is_nec_x = false;
+ else if (eq_margin(ev.duration, NECX_HEADER_PULSE, NEC_UNIT / 2))
+ data->is_nec_x = true;
+ else
break;

data->count = 0;
@@ -105,6 +109,14 @@ static int ir_nec_decode(struct input_dev *input_dev, struct ir_raw_event ev)
if (ev.pulse)
break;

+ if (geq_margin(ev.duration, NEC_TRAILER_SPACE, NEC_UNIT / 2) &&
+ data->is_nec_x && data->count == NECX_REPEAT_BITS) {
+ IR_dprintk(1, "Repeat last key\n");
+ ir_repeat(input_dev);
+ data->state = STATE_INACTIVE;
+ return 0;
+ }
+
data->bits <<= 1;
if (eq_margin(ev.duration, NEC_BIT_1_SPACE, NEC_UNIT / 2))
data->bits |= 1;
--
1.7.0.4