unleashed-firmware/lib/irda/nec/irda_decoder_nec.c
SG 2daf65b62b
[FL-1237] Notifications app (#476)
* Notification app: init
* Notification app: separate message sequences
* Notification app: rename notifications to notification
* Notification app: rework api
* Notification app: new sequences for charger
* Power app: add state for better led handling
* Power app: NotificationSequence type, notification led process
* Blink app: use notifications
* Notification app: sound and vibro notifications
* Notification app: note messages
* Notification app: more messages
* Notification app: update note message generator
* Blink app: fix state counter
* Notification app: fix delay event
* App sd-filesystem: notifications
* App notifications: headers c++ compatibility
* App notifications: Cmaj success chord sequence
* App iButton: use notifications
* App notification: display backlight notifications
* App notification: add "display on" message to success and error sequences
* App accessor: use notifications
* App ibutton: guard onewire key read
* Lib-RFAL: remove api_hal_light usage
* App notification: add blocking mode, rework display api
* Cli led command: use internal notification instead of direc access to leds.
* App unit test: use notifications
* App lfrfid: use notifications
* Apps: close notification record
* App subghz: rough use of notifications
* App notificaton: ignore reset flag
* App strobe: removed
* Lib irda decoder: fix nec decoding
* App irda: fix assert, use notifications
* Apps: use notifications
* Fix IRDA tests
* Cli: better var naming
* App notification: readable sources

Co-authored-by: Albert Kharisov <albert@flipperdevices.com>
Co-authored-by: あく <alleteam@gmail.com>
2021-05-24 16:44:14 +03:00

78 lines
2.3 KiB
C

#include <stdbool.h>
#include <stdint.h>
#include <furi.h>
#include "../irda_i.h"
static bool interpret_nec(IrdaCommonDecoder* decoder);
static DecodeStatus decode_repeat_nec(IrdaCommonDecoder* decoder);
static const IrdaCommonProtocolSpec protocol_nec = {
{
IRDA_NEC_PREAMBULE_MARK,
IRDA_NEC_PREAMBULE_SPACE,
IRDA_NEC_BIT1_MARK,
IRDA_NEC_BIT1_SPACE,
IRDA_NEC_BIT0_MARK,
IRDA_NEC_BIT0_SPACE,
IRDA_NEC_PREAMBLE_TOLERANCE,
IRDA_NEC_BIT_TOLERANCE,
},
32,
irda_common_decode_pdwm,
interpret_nec,
decode_repeat_nec,
};
static bool interpret_nec(IrdaCommonDecoder* decoder) {
furi_assert(decoder);
bool result = false;
uint16_t address = decoder->data[0] | (decoder->data[1] << 8);
uint8_t command = decoder->data[2];
uint8_t command_inverse = decoder->data[3];
if((command == (uint8_t)~command_inverse)) {
decoder->message.command = command;
decoder->message.address = address;
decoder->message.repeat = false;
result = true;
}
return result;
}
// timings start from Space (delay between message and repeat)
static DecodeStatus decode_repeat_nec(IrdaCommonDecoder* decoder) {
furi_assert(decoder);
float preamble_tolerance = decoder->protocol->timings.preamble_tolerance;
uint32_t bit_tolerance = decoder->protocol->timings.bit_tolerance;
DecodeStatus status = DecodeStatusError;
if(decoder->timings_cnt < 4) return DecodeStatusOk;
if((decoder->timings[0] > IRDA_NEC_REPEAT_PAUSE_MIN) &&
(decoder->timings[0] < IRDA_NEC_REPEAT_PAUSE_MAX) &&
MATCH_PREAMBLE_TIMING(decoder->timings[1], IRDA_NEC_REPEAT_MARK, preamble_tolerance) &&
MATCH_PREAMBLE_TIMING(decoder->timings[2], IRDA_NEC_REPEAT_SPACE, preamble_tolerance) &&
MATCH_BIT_TIMING(decoder->timings[3], decoder->protocol->timings.bit1_mark, bit_tolerance)) {
status = DecodeStatusReady;
decoder->timings_cnt = 0;
} else {
status = DecodeStatusError;
}
return status;
}
void* irda_decoder_nec_alloc(void) {
return irda_common_decoder_alloc(&protocol_nec);
}
IrdaMessage* irda_decoder_nec_decode(void* decoder, bool level, uint32_t duration) {
return irda_common_decode(decoder, level, duration);
}
void irda_decoder_nec_free(void* decoder) {
irda_common_decoder_free(decoder);
}