244 lines
9.5 KiB
C
244 lines
9.5 KiB
C
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#include "subghz_protocol_scher_khan.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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struct SubGhzProtocolScherKhan {
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SubGhzProtocolCommon common;
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const char* protocol_name;
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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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SubGhzProtocolScherKhan* subghz_protocol_scher_khan_alloc(void) {
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SubGhzProtocolScherKhan* instance = furi_alloc(sizeof(SubGhzProtocolScherKhan));
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instance->common.name = "Scher-Khan";
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instance->common.code_min_count_bit_for_found = 35;
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instance->common.te_short = 750;
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instance->common.te_long = 1100;
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instance->common.te_delta = 150;
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instance->common.type_protocol = SubGhzProtocolCommonTypeDynamic;
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instance->common.to_string = (SubGhzProtocolCommonToStr)subghz_protocol_scher_khan_to_str;
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instance->common.to_load_protocol =
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(SubGhzProtocolCommonLoadFromRAW)subghz_decoder_scher_khan_to_load_protocol;
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return instance;
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}
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void subghz_protocol_scher_khan_free(SubGhzProtocolScherKhan* instance) {
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furi_assert(instance);
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free(instance);
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}
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/** Send bit
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*
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* @param instance - SubGhzProtocolScherKhan instance
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* @param bit - bit
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*/
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// void subghz_protocol_scher_khan_send_bit(SubGhzProtocolScherKhan* instance, uint8_t bit) {
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// if(bit) {
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// //send bit 1
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// SUBGHZ_TX_PIN_HIGH();
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// delay_us(instance->common.te_long);
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// SUBGHZ_TX_PIN_LOW();
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// delay_us(instance->common.te_short);
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// } else {
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// //send bit 0
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// SUBGHZ_TX_PIN_HIGH();
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// delay_us(instance->common.te_short);
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// SUBGHZ_TX_PIN_LOW();
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// delay_us(instance->common.te_long);
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// }
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// }
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// void subghz_protocol_scher_khan_send_key(
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// SubGhzProtocolScherKhan* instance,
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// uint64_t key,
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// uint8_t bit,
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// uint8_t repeat) {
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// while(repeat--) {
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// SUBGHZ_TX_PIN_HIGH();
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// //Send header
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// delay_us(instance->common.te_long * 2);
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// SUBGHZ_TX_PIN_LOW();
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// delay_us(instance->common.te_long * 2);
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// //Send key data
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// for(uint8_t i = bit; i > 0; i--) {
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// subghz_protocol_scher_khan_send_bit(instance, bit_read(key, i - 1));
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// }
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// }
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// }
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void subghz_protocol_scher_khan_reset(SubGhzProtocolScherKhan* instance) {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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/** Analysis of received data
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*
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* @param instance SubGhzProtocolScherKhan instance
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*/
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void subghz_protocol_scher_khan_check_remote_controller(SubGhzProtocolScherKhan* instance) {
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/*
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* MAGICAR 51 bit 00000001A99121DE83C3 MAGIC CODE, Dinamic
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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->common.code_last_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, Dinamic
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instance->protocol_name = "MAGIC CODE, Dinamic";
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instance->common.serial = ((instance->common.code_last_found >> 24) & 0xFFFFFF0) |
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((instance->common.code_last_found >> 20) & 0x0F);
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instance->common.btn = (instance->common.code_last_found >> 24) & 0x0F;
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instance->common.cnt = instance->common.code_last_found & 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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instance->protocol_name = "Unknown";
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instance->common.serial = 0;
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instance->common.btn = 0;
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instance->common.cnt = 0;
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break;
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}
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}
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void subghz_protocol_scher_khan_parse(
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SubGhzProtocolScherKhan* instance,
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bool level,
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uint32_t duration) {
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switch(instance->common.parser_step) {
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case ScherKhanDecoderStepReset:
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if((level) &&
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(DURATION_DIFF(duration, instance->common.te_short * 2) < instance->common.te_delta)) {
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instance->common.parser_step = ScherKhanDecoderStepCheckPreambula;
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instance->common.te_last = duration;
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instance->common.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, instance->common.te_short * 2) <
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instance->common.te_delta) ||
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(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
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instance->common.te_last = duration;
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} else {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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} else if(
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(DURATION_DIFF(duration, instance->common.te_short * 2) < instance->common.te_delta) ||
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(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
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if(DURATION_DIFF(instance->common.te_last, instance->common.te_short * 2) <
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instance->common.te_delta) {
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// Found header
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instance->common.header_count++;
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break;
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} else if(
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DURATION_DIFF(instance->common.te_last, instance->common.te_short) <
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instance->common.te_delta) {
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// Found start bit
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if(instance->common.header_count >= 2) {
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instance->common.parser_step = ScherKhanDecoderStepSaveDuration;
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instance->common.code_found = 0;
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instance->common.code_count_bit = 1;
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} else {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->common.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 >= (instance->common.te_long + instance->common.te_delta * 2)) {
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//Found stop bit
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instance->common.parser_step = ScherKhanDecoderStepReset;
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if(instance->common.code_count_bit >=
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instance->common.code_min_count_bit_for_found) {
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instance->common.code_last_found = instance->common.code_found;
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instance->common.code_last_count_bit = instance->common.code_count_bit;
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if(instance->common.callback)
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instance->common.callback(
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(SubGhzProtocolCommon*)instance, instance->common.context);
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}
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instance->common.code_found = 0;
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instance->common.code_count_bit = 0;
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break;
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} else {
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instance->common.te_last = duration;
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instance->common.parser_step = ScherKhanDecoderStepCheckDuration;
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}
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} else {
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instance->common.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(instance->common.te_last, instance->common.te_short) <
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instance->common.te_delta) &&
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(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta)) {
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subghz_protocol_common_add_bit(&instance->common, 0);
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instance->common.parser_step = ScherKhanDecoderStepSaveDuration;
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} else if(
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(DURATION_DIFF(instance->common.te_last, instance->common.te_long) <
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instance->common.te_delta) &&
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(DURATION_DIFF(duration, instance->common.te_long) < instance->common.te_delta)) {
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subghz_protocol_common_add_bit(&instance->common, 1);
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instance->common.parser_step = ScherKhanDecoderStepSaveDuration;
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} else {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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} else {
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instance->common.parser_step = ScherKhanDecoderStepReset;
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}
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break;
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}
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}
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void subghz_protocol_scher_khan_to_str(SubGhzProtocolScherKhan* instance, string_t output) {
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subghz_protocol_scher_khan_check_remote_controller(instance);
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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->common.name,
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instance->common.code_last_count_bit,
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(uint32_t)(instance->common.code_last_found >> 32),
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(uint32_t)instance->common.code_last_found,
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instance->common.serial,
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instance->common.btn,
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instance->common.cnt,
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instance->protocol_name);
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}
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void subghz_decoder_scher_khan_to_load_protocol(SubGhzProtocolScherKhan* instance, void* context) {
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furi_assert(context);
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furi_assert(instance);
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SubGhzProtocolCommonLoad* data = context;
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instance->common.code_last_found = data->code_found;
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instance->common.code_last_count_bit = data->code_count_bit;
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subghz_protocol_scher_khan_check_remote_controller(instance);
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}
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