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authorMauro Carvalho Chehab <mchehab@redhat.com>2010-04-03 20:33:00 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-19 12:56:56 -0300
commit67780d6a2347d03b640f22295f8df7f00fbc829f (patch)
treeaa5180185366e5c17c12d2673d06ebef13d2cf51 /drivers/media/IR
parent2f16f6315f583964732bc23c873d4024281d763c (diff)
V4L/DVB: ir-nec-decoder: Cleanups
Remove dead code and properly name a few constants Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/IR')
-rw-r--r--drivers/media/IR/ir-nec-decoder.c40
1 files changed, 8 insertions, 32 deletions
diff --git a/drivers/media/IR/ir-nec-decoder.c b/drivers/media/IR/ir-nec-decoder.c
index 33b260f517f5..087211c5496a 100644
--- a/drivers/media/IR/ir-nec-decoder.c
+++ b/drivers/media/IR/ir-nec-decoder.c
@@ -14,38 +14,14 @@
#include <media/ir-core.h>
+#define NEC_NBITS 32
#define NEC_UNIT 559979 /* ns */
#define NEC_HEADER_MARK (16 * NEC_UNIT)
#define NEC_HEADER_SPACE (8 * NEC_UNIT)
#define NEC_REPEAT_SPACE (4 * NEC_UNIT)
#define NEC_MARK (NEC_UNIT)
-#define NEC_0_SYMBOL (NEC_UNIT)
-#define NEC_1_SYMBOL (3 * NEC_UNIT)
-
-/* Start time: 4.5 ms + 560 us of the next pulse */
-#define MIN_START_TIME (3900000 + 560000)
-#define MAX_START_TIME (5100000 + 560000)
-
-/* Bit 1 time: 2.25ms us */
-#define MIN_BIT1_TIME 2050000
-#define MAX_BIT1_TIME 2450000
-
-/* Bit 0 time: 1.12ms us */
-#define MIN_BIT0_TIME 920000
-#define MAX_BIT0_TIME 1320000
-
-/* Total IR code is 110 ms, including the 9 ms for the start pulse */
-#define MAX_NEC_TIME 4000000
-
-/* Total IR code is 110 ms, including the 9 ms for the start pulse */
-#define MIN_REPEAT_TIME 99000000
-#define MAX_REPEAT_TIME 112000000
-
-/* Repeat time: 2.25ms us */
-#define MIN_REPEAT_START_TIME 2050000
-#define MAX_REPEAT_START_TIME 3000000
-
-#define REPEAT_TIME 240 /* ms */
+#define NEC_0_SPACE (NEC_UNIT)
+#define NEC_1_SPACE (3 * NEC_UNIT)
/* Used to register nec_decoder clients */
static LIST_HEAD(decoder_list);
@@ -223,11 +199,11 @@ static int handle_event(struct input_dev *input_dev,
if (last_bit)
goto err;
- if ((ev->delta.tv_nsec >= NEC_0_SYMBOL - NEC_UNIT / 2) &&
- (ev->delta.tv_nsec < NEC_0_SYMBOL + NEC_UNIT / 2))
+ if ((ev->delta.tv_nsec >= NEC_0_SPACE - NEC_UNIT / 2) &&
+ (ev->delta.tv_nsec < NEC_0_SPACE + NEC_UNIT / 2))
bit = 0;
- else if ((ev->delta.tv_nsec >= NEC_1_SYMBOL - NEC_UNIT / 2) &&
- (ev->delta.tv_nsec < NEC_1_SYMBOL + NEC_UNIT / 2))
+ else if ((ev->delta.tv_nsec >= NEC_1_SPACE - NEC_UNIT / 2) &&
+ (ev->delta.tv_nsec < NEC_1_SPACE + NEC_UNIT / 2))
bit = 1;
else {
IR_dprintk(1, "Decode failed at %d-th bit (%s) @%luus\n",
@@ -256,7 +232,7 @@ static int handle_event(struct input_dev *input_dev,
data->nec_code.not_command |= 1 << (shift - 24);
}
}
- if (++data->count == 32) {
+ if (++data->count == NEC_NBITS) {
u32 scancode;
/*
* Fixme: may need to accept Extended NEC protocol?