[FL-1156, FL-1249] Add IRDA encoder/decoder library (#451)

* Add cscope db generation
* Add api-hal-irda, TIM2: HAL->LL
* Add libirda: pwm decoding
* Universal state machine
* Add irda decoder library
* Move IRDA capture to standalone tool
* Add encoder/decoder samsung32, NEC, fix bugs
* Port current App to new Irda lib
* Fix clang format for test data
* Port IRDA api-hal to f6

Co-authored-by: あく <alleteam@gmail.com>

lib/irda/nec/irda_decoder_nec.c

@@ -0,0 +1,84 @@
+#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;
+    uint8_t address = decoder->data[0];
+    uint8_t address_inverse = decoder->data[1];
+    uint8_t command = decoder->data[2];
+    uint8_t command_inverse = decoder->data[3];
+
+    if ((command == (uint8_t) ~command_inverse) && (address == (uint8_t) ~address_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);
+}
+

lib/irda/nec/irda_encoder_nec.c

@@ -0,0 +1,44 @@
+#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();
+    }
+}
+