bde3a47078
* Git: set git attributes to automatically manage line endings. * Git: cleanup gitignore file
229 lines
8.2 KiB
C
229 lines
8.2 KiB
C
#include "subghz_protocol_came.h"
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#include "subghz_protocol_common.h"
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/*
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* Help
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* https://phreakerclub.com/447
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*
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*/
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struct SubGhzProtocolCame {
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SubGhzProtocolCommon common;
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};
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typedef enum {
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CameDecoderStepReset = 0,
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CameDecoderStepFoundStartBit,
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CameDecoderStepSaveDuration,
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CameDecoderStepCheckDuration,
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} CameDecoderStep;
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SubGhzProtocolCame* subghz_protocol_came_alloc() {
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SubGhzProtocolCame* instance = furi_alloc(sizeof(SubGhzProtocolCame));
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instance->common.name = "CAME";
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instance->common.code_min_count_bit_for_found = 12;
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instance->common.te_short = 320;
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instance->common.te_long = 640;
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instance->common.te_delta = 150;
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instance->common.type_protocol = SubGhzProtocolCommonTypeStatic;
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instance->common.to_string = (SubGhzProtocolCommonToStr)subghz_protocol_came_to_str;
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instance->common.to_save_string =
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(SubGhzProtocolCommonGetStrSave)subghz_protocol_came_to_save_str;
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instance->common.to_load_protocol_from_file =
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(SubGhzProtocolCommonLoadFromFile)subghz_protocol_came_to_load_protocol_from_file;
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instance->common.to_load_protocol =
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(SubGhzProtocolCommonLoadFromRAW)subghz_decoder_came_to_load_protocol;
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instance->common.get_upload_protocol =
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(SubGhzProtocolCommonEncoderGetUpLoad)subghz_protocol_came_send_key;
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return instance;
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}
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void subghz_protocol_came_free(SubGhzProtocolCame* instance) {
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furi_assert(instance);
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free(instance);
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}
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bool subghz_protocol_came_send_key(
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SubGhzProtocolCame* instance,
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SubGhzProtocolCommonEncoder* encoder) {
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furi_assert(instance);
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furi_assert(encoder);
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size_t index = 0;
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encoder->size_upload = (instance->common.code_last_count_bit * 2) + 2;
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if(encoder->size_upload > SUBGHZ_ENCODER_UPLOAD_MAX_SIZE) return false;
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//Send header
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encoder->upload[index++] =
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level_duration_make(false, (uint32_t)instance->common.te_short * 36);
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//Send start bit
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encoder->upload[index++] = level_duration_make(true, (uint32_t)instance->common.te_short);
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//Send key data
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for(uint8_t i = instance->common.code_last_count_bit; i > 0; i--) {
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if(bit_read(instance->common.code_last_found, i - 1)) {
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//send bit 1
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encoder->upload[index++] =
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level_duration_make(false, (uint32_t)instance->common.te_long);
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encoder->upload[index++] =
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level_duration_make(true, (uint32_t)instance->common.te_short);
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} else {
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//send bit 0
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encoder->upload[index++] =
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level_duration_make(false, (uint32_t)instance->common.te_short);
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encoder->upload[index++] =
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level_duration_make(true, (uint32_t)instance->common.te_long);
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}
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}
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return true;
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}
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void subghz_protocol_came_reset(SubGhzProtocolCame* instance) {
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instance->common.parser_step = CameDecoderStepReset;
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}
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void subghz_protocol_came_parse(SubGhzProtocolCame* instance, bool level, uint32_t duration) {
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switch(instance->common.parser_step) {
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case CameDecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, instance->common.te_short * 51) <
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instance->common.te_delta * 51)) { //Need protocol 36 te_short
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//Found header CAME
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instance->common.parser_step = CameDecoderStepFoundStartBit;
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} else {
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instance->common.parser_step = CameDecoderStepReset;
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}
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break;
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case CameDecoderStepFoundStartBit:
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if(!level) {
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break;
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} else if(DURATION_DIFF(duration, instance->common.te_short) < instance->common.te_delta) {
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//Found start bit CAME
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instance->common.parser_step = CameDecoderStepSaveDuration;
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instance->common.code_found = 0;
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instance->common.code_count_bit = 0;
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} else {
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instance->common.parser_step = CameDecoderStepReset;
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}
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break;
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case CameDecoderStepSaveDuration:
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if(!level) { //save interval
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if(duration >= (instance->common.te_short * 4)) {
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instance->common.parser_step = CameDecoderStepFoundStartBit;
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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.serial = 0x0;
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instance->common.btn = 0x0;
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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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break;
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}
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instance->common.te_last = duration;
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instance->common.parser_step = CameDecoderStepCheckDuration;
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} else {
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instance->common.parser_step = CameDecoderStepReset;
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}
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break;
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case CameDecoderStepCheckDuration:
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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_long) < instance->common.te_delta)) {
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subghz_protocol_common_add_bit(&instance->common, 0);
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instance->common.parser_step = CameDecoderStepSaveDuration;
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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_short) < instance->common.te_delta)) {
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subghz_protocol_common_add_bit(&instance->common, 1);
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instance->common.parser_step = CameDecoderStepSaveDuration;
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} else
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instance->common.parser_step = CameDecoderStepReset;
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} else {
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instance->common.parser_step = CameDecoderStepReset;
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}
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break;
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}
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}
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void subghz_protocol_came_to_str(SubGhzProtocolCame* instance, string_t output) {
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uint32_t code_found_lo = instance->common.code_last_found & 0x00000000ffffffff;
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uint64_t code_found_reverse = subghz_protocol_common_reverse_key(
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instance->common.code_last_found, instance->common.code_last_count_bit);
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uint32_t code_found_reverse_lo = code_found_reverse & 0x00000000ffffffff;
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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%08lX\r\n"
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"Yek:0x%08lX\r\n",
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instance->common.name,
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instance->common.code_last_count_bit,
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code_found_lo,
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code_found_reverse_lo);
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}
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void subghz_protocol_came_to_save_str(SubGhzProtocolCame* instance, string_t output) {
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string_printf(
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output,
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"Protocol: %s\n"
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"Bit: %d\n"
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"Key: %08lX\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 & 0x00000000ffffffff));
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}
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bool subghz_protocol_came_to_load_protocol_from_file(
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FileWorker* file_worker,
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SubGhzProtocolCame* instance) {
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bool loaded = false;
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string_t temp_str;
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string_init(temp_str);
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int res = 0;
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int data = 0;
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do {
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// Read and parse bit data from 2nd line
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if(!file_worker_read_until(file_worker, temp_str, '\n')) {
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break;
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}
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res = sscanf(string_get_cstr(temp_str), "Bit: %d\n", &data);
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if(res != 1) {
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break;
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}
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instance->common.code_last_count_bit = (uint8_t)data;
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// Read and parse key data from 3nd line
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if(!file_worker_read_until(file_worker, temp_str, '\n')) {
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break;
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}
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uint32_t temp_key = 0;
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res = sscanf(string_get_cstr(temp_str), "Key: %08lX\n", &temp_key);
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if(res != 1) {
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break;
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}
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instance->common.code_last_found = (uint64_t)temp_key;
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loaded = true;
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} while(0);
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string_clear(temp_str);
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return loaded;
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}
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void subghz_decoder_came_to_load_protocol(SubGhzProtocolCame* 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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}
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