288 lines
11 KiB
C
288 lines
11 KiB
C
#include "scher_khan.h"
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#include "../blocks/const.h"
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#include "../blocks/decoder.h"
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#include "../blocks/encoder.h"
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#include "../blocks/generic.h"
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#include "../blocks/math.h"
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//https://phreakerclub.com/72
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//https://phreakerclub.com/forum/showthread.php?t=7&page=2
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//https://phreakerclub.com/forum/showthread.php?t=274&highlight=magicar
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//!!! https://phreakerclub.com/forum/showthread.php?t=489&highlight=magicar&page=5
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#define TAG "SubGhzProtocolScherKhan"
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static const SubGhzBlockConst subghz_protocol_scher_khan_const = {
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.te_short = 750,
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.te_long = 1100,
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.te_delta = 150,
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.min_count_bit_for_found = 35,
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};
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struct SubGhzProtocolDecoderScherKhan {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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uint16_t header_count;
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const char* protocol_name;
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};
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struct SubGhzProtocolEncoderScherKhan {
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SubGhzProtocolEncoderBase base;
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SubGhzProtocolBlockEncoder encoder;
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SubGhzBlockGeneric generic;
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};
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typedef enum {
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ScherKhanDecoderStepReset = 0,
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ScherKhanDecoderStepCheckPreambula,
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ScherKhanDecoderStepSaveDuration,
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ScherKhanDecoderStepCheckDuration,
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} ScherKhanDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_scher_khan_decoder = {
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.alloc = subghz_protocol_decoder_scher_khan_alloc,
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.free = subghz_protocol_decoder_scher_khan_free,
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.feed = subghz_protocol_decoder_scher_khan_feed,
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.reset = subghz_protocol_decoder_scher_khan_reset,
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.get_hash_data = subghz_protocol_decoder_scher_khan_get_hash_data,
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.serialize = subghz_protocol_decoder_scher_khan_serialize,
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.deserialize = subghz_protocol_decoder_scher_khan_deserialize,
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.get_string = subghz_protocol_decoder_scher_khan_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_scher_khan_encoder = {
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.alloc = NULL,
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.free = NULL,
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.deserialize = NULL,
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.stop = NULL,
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.yield = NULL,
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};
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const SubGhzProtocol subghz_protocol_scher_khan = {
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.name = SUBGHZ_PROTOCOL_SCHER_KHAN_NAME,
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.type = SubGhzProtocolTypeDynamic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_FM | SubGhzProtocolFlag_Decodable,
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.decoder = &subghz_protocol_scher_khan_decoder,
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.encoder = &subghz_protocol_scher_khan_encoder,
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};
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void* subghz_protocol_decoder_scher_khan_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderScherKhan* instance = malloc(sizeof(SubGhzProtocolDecoderScherKhan));
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instance->base.protocol = &subghz_protocol_scher_khan;
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instance->generic.protocol_name = instance->base.protocol->name;
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return instance;
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}
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void subghz_protocol_decoder_scher_khan_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_scher_khan_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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void subghz_protocol_decoder_scher_khan_feed(void* context, bool level, uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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switch(instance->decoder.parser_step) {
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case ScherKhanDecoderStepReset:
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if((level) && (DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
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subghz_protocol_scher_khan_const.te_delta)) {
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instance->decoder.parser_step = ScherKhanDecoderStepCheckPreambula;
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instance->decoder.te_last = duration;
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instance->header_count = 0;
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}
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break;
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case ScherKhanDecoderStepCheckPreambula:
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if(level) {
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if((DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
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subghz_protocol_scher_khan_const.te_delta) ||
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(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
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subghz_protocol_scher_khan_const.te_delta)) {
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instance->decoder.te_last = duration;
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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} else if(
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(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short * 2) <
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subghz_protocol_scher_khan_const.te_delta) ||
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(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
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subghz_protocol_scher_khan_const.te_delta)) {
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if(DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short * 2) <
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subghz_protocol_scher_khan_const.te_delta) {
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// Found header
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instance->header_count++;
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break;
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} else if(
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DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short) <
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subghz_protocol_scher_khan_const.te_delta) {
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// Found start bit
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if(instance->header_count >= 2) {
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instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 1;
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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break;
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case ScherKhanDecoderStepSaveDuration:
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if(level) {
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if(duration >= (uint32_t)(subghz_protocol_scher_khan_const.te_long +
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subghz_protocol_scher_khan_const.te_delta * 2)) {
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//Found stop bit
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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if(instance->decoder.decode_count_bit >=
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subghz_protocol_scher_khan_const.min_count_bit_for_found) {
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instance->generic.data = instance->decoder.decode_data;
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instance->generic.data_count_bit = instance->decoder.decode_count_bit;
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if(instance->base.callback)
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instance->base.callback(&instance->base, instance->base.context);
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}
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instance->decoder.decode_data = 0;
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instance->decoder.decode_count_bit = 0;
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break;
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} else {
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instance->decoder.te_last = duration;
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instance->decoder.parser_step = ScherKhanDecoderStepCheckDuration;
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}
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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break;
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case ScherKhanDecoderStepCheckDuration:
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if(!level) {
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if((DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_scher_khan_const.te_short) <
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subghz_protocol_scher_khan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_short) <
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subghz_protocol_scher_khan_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 0);
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instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(
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instance->decoder.te_last, subghz_protocol_scher_khan_const.te_long) <
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subghz_protocol_scher_khan_const.te_delta) &&
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(DURATION_DIFF(duration, subghz_protocol_scher_khan_const.te_long) <
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subghz_protocol_scher_khan_const.te_delta)) {
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subghz_protocol_blocks_add_bit(&instance->decoder, 1);
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instance->decoder.parser_step = ScherKhanDecoderStepSaveDuration;
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->decoder.parser_step = ScherKhanDecoderStepReset;
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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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* Analysis of received data
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* @param instance Pointer to a SubGhzBlockGeneric* instance
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* @param protocol_name
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*/
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static void subghz_protocol_scher_khan_check_remote_controller(
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SubGhzBlockGeneric* instance,
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const char** protocol_name) {
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/*
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* MAGICAR 51 bit 00000001A99121DE83C3 MAGIC CODE, Dynamic
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* 0E8C1619E830C -> 000011101000110000010110 0001 1001 1110 1000001100001100
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* 0E8C1629D830D -> 000011101000110000010110 0010 1001 1101 1000001100001101
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* 0E8C1649B830E -> 000011101000110000010110 0100 1001 1011 1000001100001110
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* 0E8C16897830F -> 000011101000110000010110 1000 1001 0111 1000001100001111
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* Serial Key Ser ~Key CNT
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*/
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switch(instance->data_count_bit) {
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// case 35: //MAGIC CODE, Static
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// instance->protocol_name = "MAGIC CODE, Static";
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// break;
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case 51: //MAGIC CODE, Dynamic
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*protocol_name = "MAGIC CODE, Dynamic";
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instance->serial = ((instance->data >> 24) & 0xFFFFFF0) | ((instance->data >> 20) & 0x0F);
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instance->btn = (instance->data >> 24) & 0x0F;
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instance->cnt = instance->data & 0xFFFF;
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break;
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// case 57: //MAGIC CODE PRO / PRO2
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// instance->protocol_name = "MAGIC CODE PRO / PRO2";
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// break;
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default:
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*protocol_name = "Unknown";
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instance->serial = 0;
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instance->btn = 0;
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instance->cnt = 0;
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break;
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}
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}
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uint8_t subghz_protocol_decoder_scher_khan_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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return subghz_protocol_blocks_get_hash_data(
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&instance->decoder, (instance->decoder.decode_count_bit / 8) + 1);
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}
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bool subghz_protocol_decoder_scher_khan_serialize(
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void* context,
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FlipperFormat* flipper_format,
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SubGhzPresetDefinition* preset) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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return subghz_block_generic_serialize(&instance->generic, flipper_format, preset);
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}
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bool subghz_protocol_decoder_scher_khan_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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return subghz_block_generic_deserialize(&instance->generic, flipper_format);
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}
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void subghz_protocol_decoder_scher_khan_get_string(void* context, string_t output) {
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furi_assert(context);
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SubGhzProtocolDecoderScherKhan* instance = context;
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subghz_protocol_scher_khan_check_remote_controller(
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&instance->generic, &instance->protocol_name);
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string_cat_printf(
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output,
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"%s %dbit\r\n"
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"Key:0x%lX%08lX\r\n"
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"Sn:%07lX Btn:%lX Cnt:%04X\r\n"
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"Pt: %s\r\n",
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instance->generic.protocol_name,
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instance->generic.data_count_bit,
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(uint32_t)(instance->generic.data >> 32),
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(uint32_t)instance->generic.data,
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instance->generic.serial,
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instance->generic.btn,
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instance->generic.cnt,
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instance->protocol_name);
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}
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