diff options
| author | Mauro Carvalho Chehab | 2010-04-04 01:33:00 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2010-05-19 17:56:56 +0200 |
| commit | 67780d6a2347d03b640f22295f8df7f00fbc829f (patch) | |
| tree | aa5180185366e5c17c12d2673d06ebef13d2cf51 /drivers | |
| parent | V4L/DVB: ir-nec-decoder: Reimplement the entire decoder (diff) | |
| download | kernel-qcow2-linux-67780d6a2347d03b640f22295f8df7f00fbc829f.tar.gz kernel-qcow2-linux-67780d6a2347d03b640f22295f8df7f00fbc829f.tar.xz kernel-qcow2-linux-67780d6a2347d03b640f22295f8df7f00fbc829f.zip | |
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')
| -rw-r--r-- | drivers/media/IR/ir-nec-decoder.c | 40 |
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? |