flipperzero-firmware/lib/irda/encoder_decoder/nec/irda_encoder_nec.c
Albert Kharisov fbccb9fbaf
[FL-1684] IRDA Add SIRC protocol (#693)
* IRDA HAL: Fill buffer refactoring
* IRDA: Add SIRC protocol
* IRDA: correct adr/cmd bit length
* Disable Unit tests

Co-authored-by: あく <alleteam@gmail.com>
2021-09-10 00:37:32 +03:00

72 lines
2.2 KiB
C

#include "furi/check.h"
#include "irda.h"
#include "common/irda_common_i.h"
#include <stdint.h>
#include "../irda_i.h"
#include "irda_protocol_defs_i.h"
#include <furi.h>
static const uint32_t repeat_timings[] = {
IRDA_NEC_REPEAT_PERIOD - IRDA_NEC_REPEAT_MARK - IRDA_NEC_REPEAT_SPACE - IRDA_NEC_BIT1_MARK,
IRDA_NEC_REPEAT_MARK,
IRDA_NEC_REPEAT_SPACE,
IRDA_NEC_BIT1_MARK,
};
void irda_encoder_nec_reset(void* encoder_ptr, const IrdaMessage* message) {
furi_assert(encoder_ptr);
furi_assert(message);
IrdaCommonEncoder* encoder = encoder_ptr;
irda_common_encoder_reset(encoder);
uint8_t address = message->address;
uint8_t address_inverse = ~address;
uint8_t command = message->command;
uint8_t command_inverse = ~command;
uint32_t* data = (void*) encoder->data;
if (message->protocol == IrdaProtocolNEC) {
*data = (address | (address_inverse << 8));
} else if (message->protocol == IrdaProtocolNECext) {
*data = (uint16_t) message->address;
}
*data |= command << 16;
*data |= command_inverse << 24;
}
IrdaStatus irda_encoder_nec_encode_repeat(IrdaCommonEncoder* encoder, uint32_t* duration, bool* level) {
furi_assert(encoder);
/* space + 2 timings preambule + payload + stop bit */
uint32_t timings_encoded_up_to_repeat = 1 + 2 + encoder->protocol->databit_len * 2 + 1;
uint32_t repeat_cnt = encoder->timings_encoded - timings_encoded_up_to_repeat;
furi_assert(encoder->timings_encoded >= timings_encoded_up_to_repeat);
if (repeat_cnt > 0) {
*duration = repeat_timings[repeat_cnt % COUNT_OF(repeat_timings)];
} else {
*duration = IRDA_NEC_REPEAT_PERIOD - encoder->timings_sum;
}
*level = repeat_cnt % 2;
++encoder->timings_encoded;
bool done = (!((repeat_cnt + 1) % COUNT_OF(repeat_timings)));
return done ? IrdaStatusDone : IrdaStatusOk;
}
void* irda_encoder_nec_alloc(void) {
return irda_common_encoder_alloc(&protocol_nec);
}
void irda_encoder_nec_free(void* encoder_ptr) {
irda_common_encoder_free(encoder_ptr);
}
IrdaStatus irda_encoder_nec_encode(void* encoder_ptr, uint32_t* duration, bool* level) {
return irda_common_encode(encoder_ptr, duration, level);
}