unleashed-firmware/lib/irda/nec/irda_encoder_nec.c
Albert Kharisov 31c31db479
[FL-1250, FL-1252, FL-1323, FL-1324] New IRDA Application (part 1) (#497)
* Add new IrdaApp (half ready), add ButtonMenu

* Fix NEC's extension

* clang-format

* Fix leak

* Add submenu optional header

* IRDA: add Edit button

* clang-format

* IrdaApp: Fix scene flow

* Add IRDA NEC extended protocol

* IRDA: Add address/command length

Co-authored-by: SG <who.just.the.doctor@gmail.com>
2021-06-02 18:16:05 +03:00

62 lines
2 KiB
C

#include <stdint.h>
#include "../irda_i.h"
static const IrdaEncoderTimings encoder_timings = {
.bit1_mark = IRDA_NEC_BIT1_MARK,
.bit1_space = IRDA_NEC_BIT1_SPACE,
.bit0_mark =IRDA_NEC_BIT0_MARK,
.bit0_space = IRDA_NEC_BIT0_SPACE,
.duty_cycle = IRDA_NEC_DUTY_CYCLE,
.carrier_frequency = IRDA_NEC_CARRIER_FREQUENCY,
};
static void irda_encode_nec_preamble(void) {
irda_encode_mark(&encoder_timings, IRDA_NEC_PREAMBULE_MARK);
irda_encode_space(&encoder_timings, IRDA_NEC_PREAMBULE_SPACE);
}
static void irda_encode_nec_repeat(void) {
irda_encode_space(&encoder_timings, IRDA_NEC_REPEAT_PAUSE);
irda_encode_mark(&encoder_timings, IRDA_NEC_REPEAT_MARK);
irda_encode_space(&encoder_timings, IRDA_NEC_REPEAT_SPACE);
irda_encode_bit(&encoder_timings, 1);
}
void irda_encoder_nec_encode(uint32_t addr, uint32_t cmd, bool repeat) {
uint8_t address = addr & 0xFF;
uint8_t command = cmd & 0xFF;
uint8_t address_inverse = (uint8_t) ~address;
uint8_t command_inverse = (uint8_t) ~command;
if (!repeat) {
irda_encode_nec_preamble();
irda_encode_byte(&encoder_timings, address);
irda_encode_byte(&encoder_timings, address_inverse);
irda_encode_byte(&encoder_timings, command);
irda_encode_byte(&encoder_timings, command_inverse);
irda_encode_bit(&encoder_timings, 1);
} else {
irda_encode_nec_repeat();
}
}
// Some NEC's extensions allow 16 bit address
void irda_encoder_necext_encode(uint32_t addr, uint32_t cmd, bool repeat) {
uint16_t address = addr & 0xFFFF;
uint8_t command = cmd & 0xFF;
uint8_t command_inverse = (uint8_t) ~command;
if (!repeat) {
irda_encode_nec_preamble();
irda_encode_byte(&encoder_timings, (uint8_t) address);
irda_encode_byte(&encoder_timings, (uint8_t) (address >> 8));
irda_encode_byte(&encoder_timings, command);
irda_encode_byte(&encoder_timings, command_inverse);
irda_encode_bit(&encoder_timings, 1);
} else {
irda_encode_nec_repeat();
}
}