394 lines
14 KiB
C
394 lines
14 KiB
C
#include "marantec.h"
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#include <lib/toolbox/manchester_decoder.h>
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#include <lib/toolbox/manchester_encoder.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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#define TAG "SubGhzProtocolMarantec"
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static const SubGhzBlockConst subghz_protocol_marantec_const = {
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.te_short = 1000,
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.te_long = 2000,
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.te_delta = 200,
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.min_count_bit_for_found = 49,
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};
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struct SubGhzProtocolDecoderMarantec {
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SubGhzProtocolDecoderBase base;
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SubGhzBlockDecoder decoder;
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SubGhzBlockGeneric generic;
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ManchesterState manchester_saved_state;
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uint16_t header_count;
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};
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struct SubGhzProtocolEncoderMarantec {
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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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MarantecDecoderStepReset = 0,
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MarantecDecoderFoundHeader,
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MarantecDecoderStepDecoderData,
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} MarantecDecoderStep;
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const SubGhzProtocolDecoder subghz_protocol_marantec_decoder = {
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.alloc = subghz_protocol_decoder_marantec_alloc,
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.free = subghz_protocol_decoder_marantec_free,
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.feed = subghz_protocol_decoder_marantec_feed,
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.reset = subghz_protocol_decoder_marantec_reset,
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.get_hash_data = subghz_protocol_decoder_marantec_get_hash_data,
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.serialize = subghz_protocol_decoder_marantec_serialize,
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.deserialize = subghz_protocol_decoder_marantec_deserialize,
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.get_string = subghz_protocol_decoder_marantec_get_string,
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};
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const SubGhzProtocolEncoder subghz_protocol_marantec_encoder = {
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.alloc = subghz_protocol_encoder_marantec_alloc,
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.free = subghz_protocol_encoder_marantec_free,
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.deserialize = subghz_protocol_encoder_marantec_deserialize,
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.stop = subghz_protocol_encoder_marantec_stop,
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.yield = subghz_protocol_encoder_marantec_yield,
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};
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const SubGhzProtocol subghz_protocol_marantec = {
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.name = SUBGHZ_PROTOCOL_MARANTEC_NAME,
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.type = SubGhzProtocolTypeStatic,
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.flag = SubGhzProtocolFlag_433 | SubGhzProtocolFlag_AM | SubGhzProtocolFlag_Decodable |
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SubGhzProtocolFlag_Load | SubGhzProtocolFlag_Save | SubGhzProtocolFlag_Send,
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.decoder = &subghz_protocol_marantec_decoder,
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.encoder = &subghz_protocol_marantec_encoder,
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};
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void* subghz_protocol_encoder_marantec_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolEncoderMarantec* instance = malloc(sizeof(SubGhzProtocolEncoderMarantec));
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instance->base.protocol = &subghz_protocol_marantec;
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instance->generic.protocol_name = instance->base.protocol->name;
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instance->encoder.repeat = 10;
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instance->encoder.size_upload = 256;
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instance->encoder.upload = malloc(instance->encoder.size_upload * sizeof(LevelDuration));
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instance->encoder.is_running = false;
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return instance;
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}
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void subghz_protocol_encoder_marantec_free(void* context) {
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furi_assert(context);
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SubGhzProtocolEncoderMarantec* instance = context;
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free(instance->encoder.upload);
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free(instance);
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}
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static LevelDuration
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subghz_protocol_encoder_marantec_add_duration_to_upload(ManchesterEncoderResult result) {
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LevelDuration data = {.duration = 0, .level = 0};
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switch(result) {
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case ManchesterEncoderResultShortLow:
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data.duration = subghz_protocol_marantec_const.te_short;
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data.level = false;
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break;
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case ManchesterEncoderResultLongLow:
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data.duration = subghz_protocol_marantec_const.te_long;
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data.level = false;
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break;
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case ManchesterEncoderResultLongHigh:
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data.duration = subghz_protocol_marantec_const.te_long;
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data.level = true;
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break;
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case ManchesterEncoderResultShortHigh:
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data.duration = subghz_protocol_marantec_const.te_short;
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data.level = true;
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break;
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default:
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furi_crash("SubGhz: ManchesterEncoderResult is incorrect.");
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break;
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}
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return level_duration_make(data.level, data.duration);
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}
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/**
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* Generating an upload from data.
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* @param instance Pointer to a SubGhzProtocolEncoderMarantec instance
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*/
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static void subghz_protocol_encoder_marantec_get_upload(SubGhzProtocolEncoderMarantec* instance) {
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furi_assert(instance);
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size_t index = 0;
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ManchesterEncoderState enc_state;
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manchester_encoder_reset(&enc_state);
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ManchesterEncoderResult result;
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if(!manchester_encoder_advance(
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&enc_state,
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bit_read(instance->generic.data, instance->generic.data_count_bit - 1),
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&result)) {
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instance->encoder.upload[index++] =
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subghz_protocol_encoder_marantec_add_duration_to_upload(result);
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manchester_encoder_advance(
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&enc_state,
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bit_read(instance->generic.data, instance->generic.data_count_bit - 1),
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&result);
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}
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instance->encoder.upload[index++] =
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level_duration_make(false, (uint32_t)subghz_protocol_marantec_const.te_long * 5);
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for(uint8_t i = instance->generic.data_count_bit - 1; i > 0; i--) {
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if(!manchester_encoder_advance(
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&enc_state, bit_read(instance->generic.data, i - 1), &result)) {
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instance->encoder.upload[index++] =
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subghz_protocol_encoder_marantec_add_duration_to_upload(result);
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manchester_encoder_advance(
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&enc_state, bit_read(instance->generic.data, i - 1), &result);
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}
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instance->encoder.upload[index++] =
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subghz_protocol_encoder_marantec_add_duration_to_upload(result);
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}
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instance->encoder.upload[index] = subghz_protocol_encoder_marantec_add_duration_to_upload(
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manchester_encoder_finish(&enc_state));
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if(level_duration_get_level(instance->encoder.upload[index])) {
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index++;
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}
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instance->encoder.size_upload = index;
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}
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uint8_t subghz_protocol_marantec_crc8(uint8_t* data, size_t len) {
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uint8_t crc = 0x08;
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size_t i, j;
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for(i = 0; i < len; i++) {
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crc ^= data[i];
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for(j = 0; j < 8; j++) {
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if((crc & 0x80) != 0)
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crc = (uint8_t)((crc << 1) ^ 0x1D);
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else
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crc <<= 1;
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}
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}
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return crc;
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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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*/
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static void subghz_protocol_marantec_remote_controller(SubGhzBlockGeneric* instance) {
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instance->btn = (instance->data >> 16) & 0xF;
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instance->serial = ((instance->data >> 12) & 0xFFFFFF00) | ((instance->data >> 8) & 0xFF);
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}
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bool subghz_protocol_encoder_marantec_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolEncoderMarantec* instance = context;
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bool res = false;
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do {
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if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
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FURI_LOG_E(TAG, "Deserialize error");
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break;
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}
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if(instance->generic.data_count_bit !=
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subghz_protocol_marantec_const.min_count_bit_for_found) {
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FURI_LOG_E(TAG, "Wrong number of bits in key");
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break;
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}
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//optional parameter parameter
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flipper_format_read_uint32(
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flipper_format, "Repeat", (uint32_t*)&instance->encoder.repeat, 1);
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subghz_protocol_marantec_remote_controller(&instance->generic);
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subghz_protocol_encoder_marantec_get_upload(instance);
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instance->encoder.is_running = true;
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res = true;
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} while(false);
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return res;
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}
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void subghz_protocol_encoder_marantec_stop(void* context) {
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SubGhzProtocolEncoderMarantec* instance = context;
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instance->encoder.is_running = false;
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}
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LevelDuration subghz_protocol_encoder_marantec_yield(void* context) {
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SubGhzProtocolEncoderMarantec* instance = context;
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if(instance->encoder.repeat == 0 || !instance->encoder.is_running) {
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instance->encoder.is_running = false;
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return level_duration_reset();
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}
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LevelDuration ret = instance->encoder.upload[instance->encoder.front];
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if(++instance->encoder.front == instance->encoder.size_upload) {
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instance->encoder.repeat--;
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instance->encoder.front = 0;
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}
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return ret;
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}
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void* subghz_protocol_decoder_marantec_alloc(SubGhzEnvironment* environment) {
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UNUSED(environment);
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SubGhzProtocolDecoderMarantec* instance = malloc(sizeof(SubGhzProtocolDecoderMarantec));
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instance->base.protocol = &subghz_protocol_marantec;
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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_marantec_free(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* instance = context;
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free(instance);
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}
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void subghz_protocol_decoder_marantec_reset(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* instance = context;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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}
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void subghz_protocol_decoder_marantec_feed(void* context, bool level, volatile uint32_t duration) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* instance = context;
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ManchesterEvent event = ManchesterEventReset;
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switch(instance->decoder.parser_step) {
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case MarantecDecoderStepReset:
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if((!level) && (DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long * 5) <
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subghz_protocol_marantec_const.te_delta * 8)) {
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//Found header marantec
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instance->decoder.parser_step = MarantecDecoderStepDecoderData;
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instance->decoder.decode_data = 1;
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instance->decoder.decode_count_bit = 1;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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}
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break;
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case MarantecDecoderStepDecoderData:
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if(!level) {
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if(DURATION_DIFF(duration, subghz_protocol_marantec_const.te_short) <
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subghz_protocol_marantec_const.te_delta) {
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event = ManchesterEventShortLow;
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} else if(
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DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long) <
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subghz_protocol_marantec_const.te_delta) {
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event = ManchesterEventLongLow;
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} else if(
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duration >= ((uint32_t)subghz_protocol_marantec_const.te_long * 2 +
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subghz_protocol_marantec_const.te_delta)) {
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if(instance->decoder.decode_count_bit ==
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subghz_protocol_marantec_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 = 1;
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instance->decoder.decode_count_bit = 1;
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manchester_advance(
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instance->manchester_saved_state,
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ManchesterEventReset,
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&instance->manchester_saved_state,
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NULL);
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} else {
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instance->decoder.parser_step = MarantecDecoderStepReset;
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}
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} else {
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if(DURATION_DIFF(duration, subghz_protocol_marantec_const.te_short) <
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subghz_protocol_marantec_const.te_delta) {
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event = ManchesterEventShortHigh;
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} else if(
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DURATION_DIFF(duration, subghz_protocol_marantec_const.te_long) <
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subghz_protocol_marantec_const.te_delta) {
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event = ManchesterEventLongHigh;
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} else {
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instance->decoder.parser_step = MarantecDecoderStepReset;
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}
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}
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if(event != ManchesterEventReset) {
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bool data;
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bool data_ok = manchester_advance(
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instance->manchester_saved_state, event, &instance->manchester_saved_state, &data);
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if(data_ok) {
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instance->decoder.decode_data = (instance->decoder.decode_data << 1) | data;
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instance->decoder.decode_count_bit++;
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}
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}
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break;
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}
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}
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uint8_t subghz_protocol_decoder_marantec_get_hash_data(void* context) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* 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_marantec_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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SubGhzProtocolDecoderMarantec* 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_marantec_deserialize(void* context, FlipperFormat* flipper_format) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* instance = context;
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bool ret = false;
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do {
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if(!subghz_block_generic_deserialize(&instance->generic, flipper_format)) {
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break;
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}
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if(instance->generic.data_count_bit !=
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subghz_protocol_marantec_const.min_count_bit_for_found) {
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FURI_LOG_E(TAG, "Wrong number of bits in key");
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break;
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}
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ret = true;
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} while(false);
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return ret;
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}
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void subghz_protocol_decoder_marantec_get_string(void* context, string_t output) {
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furi_assert(context);
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SubGhzProtocolDecoderMarantec* instance = context;
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subghz_protocol_marantec_remote_controller(&instance->generic);
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string_cat_printf(
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output,
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"%s %db\r\n"
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"Key:0x%lX%08lX\r\n"
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"Sn:0x%07lX \r\n"
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"Btn:%lX\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 & 0xFFFFFFFF),
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instance->generic.serial,
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instance->generic.btn);
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}
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