mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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109 lines
4.2 KiB
C++
109 lines
4.2 KiB
C++
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#ifndef __FPROTO_NEROSKETCH_H__
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#define __FPROTO_NEROSKETCH_H__
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#include "subghzdbase.hpp"
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typedef enum : uint8_t {
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NeroSketchDecoderStepReset = 0,
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NeroSketchDecoderStepCheckPreambula,
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NeroSketchDecoderStepSaveDuration,
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NeroSketchDecoderStepCheckDuration,
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} NeroSketchDecoderStep;
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class FProtoSubGhzDNeroSketch : public FProtoSubGhzDBase {
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public:
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FProtoSubGhzDNeroSketch() {
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sensorType = FPS_NERO_SKETCH;
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te_short = 330;
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te_long = 660;
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te_delta = 150;
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min_count_bit_for_found = 40;
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}
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void feed(bool level, uint32_t duration) {
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switch (parser_step) {
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case NeroSketchDecoderStepReset:
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if ((level) && (DURATION_DIFF(duration, te_short) < te_delta)) {
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parser_step = NeroSketchDecoderStepCheckPreambula;
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te_last = duration;
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header_count = 0;
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}
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break;
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case NeroSketchDecoderStepCheckPreambula:
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if (level) {
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if ((DURATION_DIFF(duration, te_short) < te_delta) ||
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(DURATION_DIFF(duration, te_short * 4) < te_delta)) {
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te_last = duration;
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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} else if (
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DURATION_DIFF(duration, te_short) < te_delta) {
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if (DURATION_DIFF(te_last, te_short) < te_delta) {
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// Found header
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header_count++;
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break;
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} else if (
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DURATION_DIFF(te_last, te_short * 4) < te_delta) {
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// Found start bit
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if (header_count > 40) {
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parser_step = NeroSketchDecoderStepSaveDuration;
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decode_data = 0;
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decode_count_bit = 0;
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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break;
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case NeroSketchDecoderStepSaveDuration:
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if (level) {
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if (duration >= (te_short * 2 + te_delta * 2)) {
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// Found stop bit
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parser_step = NeroSketchDecoderStepReset;
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if (decode_count_bit == min_count_bit_for_found) {
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data = decode_data;
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data_count_bit = decode_count_bit;
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if (callback) callback(this);
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}
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decode_data = 0;
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decode_count_bit = 0;
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break;
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} else {
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te_last = duration;
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parser_step = NeroSketchDecoderStepCheckDuration;
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}
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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break;
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case NeroSketchDecoderStepCheckDuration:
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if (!level) {
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if ((DURATION_DIFF(te_last, te_short) < te_delta) &&
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(DURATION_DIFF(duration, te_long) < te_delta)) {
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subghz_protocol_blocks_add_bit(0);
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parser_step = NeroSketchDecoderStepSaveDuration;
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} else if (
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(DURATION_DIFF(te_last, te_long) < te_delta) &&
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(DURATION_DIFF(duration, te_short) < te_delta)) {
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subghz_protocol_blocks_add_bit(1);
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parser_step = NeroSketchDecoderStepSaveDuration;
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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} else {
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parser_step = NeroSketchDecoderStepReset;
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}
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break;
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}
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}
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};
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#endif
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