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https://github.com/arendst/Tasmota.git
synced 2025-07-23 18:56:38 +00:00
Fix TUYA state machine (in TUYA v1) (#20110)
* rework state machine * some comments * wip * looks good now * little updates
This commit is contained in:
Barbudor
GitHub
parent
faa29b2e57
commit
73268e4bb6
@ -78,7 +78,6 @@ struct TUYA {
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bool SuspendTopic = false; // Used to reduce the load at init time or when polling the configuraton on demand
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uint32_t ignore_topic_timeout = 0; // Suppress the /STAT topic (if enabled) to avoid data overflow until the configuration is over
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bool ignore_dim = false; // Flag to skip serial send to prevent looping when processing inbound states from the faceplate interaction
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uint8_t cmd_status = 0; // Current status of serial-read
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uint8_t cmd_checksum = 0; // Checksum of tuya command
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uint8_t data_len = 0; // Data lenght of command
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uint8_t wifi_state = -2; // Keep MCU wifi-status in sync with WifiState()
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@ -1262,150 +1261,164 @@ void TuyaInit(void) {
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Tuya.active = false;
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}
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void TuyaProcessMessage(void) {
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char hex_char[(Tuya.byte_counter * 2) + 2];
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uint16_t len = Tuya.buffer[4] << 8 | Tuya.buffer[5];
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Response_P(PSTR("{\"" D_JSON_TUYA_MCU_RECEIVED "\":{\"Data\":\"%s\",\"Cmnd\":%d"), ToHex_P((unsigned char*)Tuya.buffer, Tuya.byte_counter, hex_char, sizeof(hex_char)), Tuya.buffer[3]);
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uint16_t DataVal = 0;
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uint8_t dpId = 0;
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uint8_t dpDataType = 0;
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char DataStr[15];
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bool isCmdToSuppress = false;
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Tuya.time_last_cmd = 0;
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if (len > 0) {
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ResponseAppend_P(PSTR(",\"CmndData\":\"%s\""), ToHex_P((unsigned char*)&Tuya.buffer[6], len, hex_char, sizeof(hex_char)));
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if (TUYA_CMD_STATE == Tuya.buffer[3]) {
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//55 AA 03 07 00 0D 01 04 00 01 02 02 02 00 04 00 00 00 1A 40
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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uint8_t dpidStart = 6;
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while (dpidStart + 4 < Tuya.byte_counter) {
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dpId = Tuya.buffer[dpidStart];
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dpDataType = Tuya.buffer[dpidStart + 1];
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uint16_t dpDataLen = Tuya.buffer[dpidStart + 2] << 8 | Tuya.buffer[dpidStart + 3];
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const unsigned char *dpData = (unsigned char*)&Tuya.buffer[dpidStart + 4];
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const char *dpHexData = ToHex_P(dpData, dpDataLen, hex_char, sizeof(hex_char));
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if (TUYA_CMD_STATE == Tuya.buffer[3]) {
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ResponseAppend_P(PSTR(",\"DpType%uId%u\":"), dpDataType, dpId);
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if (TUYA_TYPE_BOOL == dpDataType && dpDataLen == 1) {
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ResponseAppend_P(PSTR("%u"), dpData[0]);
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DataVal = dpData[0];
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} else if (TUYA_TYPE_VALUE == dpDataType && dpDataLen == 4) {
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uint32_t dpValue = (uint32_t)dpData[0] << 24 | (uint32_t)dpData[1] << 16 | (uint32_t)dpData[2] << 8 | (uint32_t)dpData[3] << 0;
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ResponseAppend_P(PSTR("%u"), dpValue);
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DataVal = dpValue;
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} else if (TUYA_TYPE_STRING == dpDataType) {
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ResponseAppend_P(PSTR("\"%.*s\""), dpDataLen, dpData);
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snprintf_P(DataStr, sizeof(DataStr), PSTR("%.*s"), dpDataLen, dpData);
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} else if (TUYA_TYPE_ENUM == dpDataType && dpDataLen == 1) {
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ResponseAppend_P(PSTR("%u"), dpData[0]);
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DataVal = dpData[0];
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} else {
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ResponseAppend_P(PSTR("\"0x%s\""), dpHexData);
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snprintf_P(DataStr, sizeof(DataStr), PSTR("%s"), dpHexData);
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}
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}
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ResponseAppend_P(PSTR(",\"%d\":{\"DpId\":%d,\"DpIdType\":%d,\"DpIdData\":\"%s\""), dpId, dpId, dpDataType, dpHexData);
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if (TUYA_TYPE_STRING == dpDataType) {
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ResponseAppend_P(PSTR(",\"Type3Data\":\"%.*s\""), dpDataLen, dpData);
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}
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ResponseAppend_P(PSTR("}"));
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dpidStart += dpDataLen + 4;
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}
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}
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}
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ResponseAppend_P(PSTR("}}"));
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if (Settings->flag3.tuya_serial_mqtt_publish) { // SetOption66 - Enable TuyaMcuReceived messages over Mqtt
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for (uint8_t cmdsID = 0; cmdsID < sizeof(TuyaExcludeCMDsFromMQTT); cmdsID++) {
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if (pgm_read_byte(TuyaExcludeCMDsFromMQTT +cmdsID) == Tuya.buffer[3]) {
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isCmdToSuppress = true;
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break;
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}
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}
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if (!(isCmdToSuppress && Settings->flag5.tuya_exclude_from_mqtt)) { // SetOption137 - (Tuya) When Set, avoid the (MQTT-) publish of defined Tuya CMDs (see TuyaExcludeCMDsFromMQTT) if SetOption66 is active
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MqttPublishPrefixTopic_P(RESULT_OR_TELE, PSTR(D_JSON_TUYA_MCU_RECEIVED));
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} else {
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AddLog(LOG_LEVEL_DEBUG, ResponseData());
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}
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} else {
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AddLog(LOG_LEVEL_DEBUG, ResponseData());
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}
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XdrvRulesProcess(0);
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if (dpId != 0 && Settings->tuyamcu_topic) { // Publish a /STAT Topic ready to use for any home automation system
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if (!Tuya.SuspendTopic) {
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char scommand[13];
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snprintf_P(scommand, sizeof(scommand), PSTR("DpType%uId%u"), dpDataType, dpId);
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if (dpDataType != 3 && dpDataType != 5) { Response_P(PSTR("%u"), DataVal); }
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else { Response_P(PSTR("%s"), DataStr); }
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MqttPublishPrefixTopic_P(STAT, scommand);
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}
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}
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if (!Tuya.low_power_mode) {
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TuyaNormalPowerModePacketProcess();
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} else {
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TuyaLowPowerModePacketProcess();
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}
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}
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void TuyaSerialInput(void)
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{
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/* /-------------------------------- header 55
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* | /----------------------------- header AA
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* | | /-------------------------- version, always 00
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* | | | /----------------------- command byte
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* | | | | /--+----------------- data length in bytes, big endian (high then low)
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* | | | | | | /-+-+-+-+------ data bytes
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* | | | | | | | | | | | /--- checksum (sum of all bytes except checksum)
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* 55 AA 00 cc lh ll dd .... dd xx
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* 0 1 2 3 4 5 6 .... index in Tuya buffer
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* 0 1 2 2 2 2 3 3 3 3 3 Tuya.cmd_status
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*/
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static unsigned long time_last_byte_received = 0;
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while (TuyaSerial->available()) {
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yield();
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uint8_t serial_in_byte = TuyaSerial->read();
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if (serial_in_byte == 0x55) { // Start TUYA Packet
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Tuya.cmd_status = 1;
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time_last_byte_received = millis();
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if (Tuya.byte_counter == 0) {
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if (serial_in_byte == 0x55) { // Start TUYA Packet
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Tuya.buffer[Tuya.byte_counter++] = 0x55;
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}
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}
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else if (Tuya.byte_counter == 1) {
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if (serial_in_byte == 0xAA) { // Only packets with header 0x55AA are valid
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Tuya.buffer[Tuya.byte_counter++] = 0xAA;
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Tuya.cmd_checksum = 0xFF;
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} else {
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Tuya.byte_counter = 0; // if not received 0xAA right after the 0x55, reset the state machine
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AddLog(LOG_LEVEL_DEBUG_MORE,PSTR("TYA: 0x55 without 0xAA - resync"));
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}
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}
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else if (Tuya.byte_counter < 6) {
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Tuya.buffer[Tuya.byte_counter++] = serial_in_byte;
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Tuya.cmd_checksum += serial_in_byte;
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}
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else if (Tuya.cmd_status == 1 && serial_in_byte == 0xAA) { // Only packtes with header 0x55AA are valid
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Tuya.cmd_status = 2;
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Tuya.byte_counter = 0;
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Tuya.buffer[Tuya.byte_counter++] = 0x55;
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Tuya.buffer[Tuya.byte_counter++] = 0xAA;
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Tuya.cmd_checksum = 0xFF;
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}
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else if (Tuya.cmd_status == 2) {
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if (Tuya.byte_counter == 5) { // Get length of data
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Tuya.cmd_status = 3;
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Tuya.data_len = serial_in_byte;
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if (Tuya.byte_counter == 6) {
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// Get length of data, max buffer is 256 bytes, so only taking into account lowest byte of length
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Tuya.data_len = serial_in_byte + 6;
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}
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Tuya.cmd_checksum += serial_in_byte;
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}
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else if (Tuya.byte_counter == Tuya.data_len) {
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Tuya.buffer[Tuya.byte_counter++] = serial_in_byte;
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}
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else if ((Tuya.cmd_status == 3) && (Tuya.byte_counter == (6 + Tuya.data_len)) && (Tuya.cmd_checksum == serial_in_byte)) { // Compare checksum and process packet
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Tuya.buffer[Tuya.byte_counter++] = serial_in_byte;
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char hex_char[(Tuya.byte_counter * 2) + 2];
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uint16_t len = Tuya.buffer[4] << 8 | Tuya.buffer[5];
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Response_P(PSTR("{\"" D_JSON_TUYA_MCU_RECEIVED "\":{\"Data\":\"%s\",\"Cmnd\":%d"), ToHex_P((unsigned char*)Tuya.buffer, Tuya.byte_counter, hex_char, sizeof(hex_char)), Tuya.buffer[3]);
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uint16_t DataVal = 0;
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uint8_t dpId = 0;
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uint8_t dpDataType = 0;
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char DataStr[15];
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bool isCmdToSuppress = false;
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Tuya.time_last_cmd = 0;
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if (len > 0) {
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ResponseAppend_P(PSTR(",\"CmndData\":\"%s\""), ToHex_P((unsigned char*)&Tuya.buffer[6], len, hex_char, sizeof(hex_char)));
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if (TUYA_CMD_STATE == Tuya.buffer[3]) {
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//55 AA 03 07 00 0D 01 04 00 01 02 02 02 00 04 00 00 00 1A 40
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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uint8_t dpidStart = 6;
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while (dpidStart + 4 < Tuya.byte_counter) {
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dpId = Tuya.buffer[dpidStart];
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dpDataType = Tuya.buffer[dpidStart + 1];
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uint16_t dpDataLen = Tuya.buffer[dpidStart + 2] << 8 | Tuya.buffer[dpidStart + 3];
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const unsigned char *dpData = (unsigned char*)&Tuya.buffer[dpidStart + 4];
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const char *dpHexData = ToHex_P(dpData, dpDataLen, hex_char, sizeof(hex_char));
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if (TUYA_CMD_STATE == Tuya.buffer[3]) {
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ResponseAppend_P(PSTR(",\"DpType%uId%u\":"), dpDataType, dpId);
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if (TUYA_TYPE_BOOL == dpDataType && dpDataLen == 1) {
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ResponseAppend_P(PSTR("%u"), dpData[0]);
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DataVal = dpData[0];
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} else if (TUYA_TYPE_VALUE == dpDataType && dpDataLen == 4) {
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uint32_t dpValue = (uint32_t)dpData[0] << 24 | (uint32_t)dpData[1] << 16 | (uint32_t)dpData[2] << 8 | (uint32_t)dpData[3] << 0;
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ResponseAppend_P(PSTR("%u"), dpValue);
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DataVal = dpValue;
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} else if (TUYA_TYPE_STRING == dpDataType) {
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ResponseAppend_P(PSTR("\"%.*s\""), dpDataLen, dpData);
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snprintf_P(DataStr, sizeof(DataStr), PSTR("%.*s"), dpDataLen, dpData);
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} else if (TUYA_TYPE_ENUM == dpDataType && dpDataLen == 1) {
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ResponseAppend_P(PSTR("%u"), dpData[0]);
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DataVal = dpData[0];
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} else {
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ResponseAppend_P(PSTR("\"0x%s\""), dpHexData);
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snprintf_P(DataStr, sizeof(DataStr), PSTR("%s"), dpHexData);
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}
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}
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ResponseAppend_P(PSTR(",\"%d\":{\"DpId\":%d,\"DpIdType\":%d,\"DpIdData\":\"%s\""), dpId, dpId, dpDataType, dpHexData);
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if (TUYA_TYPE_STRING == dpDataType) {
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ResponseAppend_P(PSTR(",\"Type3Data\":\"%.*s\""), dpDataLen, dpData);
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}
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ResponseAppend_P(PSTR("}"));
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dpidStart += dpDataLen + 4;
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}
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}
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}
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ResponseAppend_P(PSTR("}}"));
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if (Settings->flag3.tuya_serial_mqtt_publish) { // SetOption66 - Enable TuyaMcuReceived messages over Mqtt
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/*
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for (uint8_t cmdsID = 0; sizeof(TuyaExcludeCMDsFromMQTT) > cmdsID; cmdsID++){
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if (TuyaExcludeCMDsFromMQTT[cmdsID] == Tuya.buffer[3]) {
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isCmdToSuppress = true;
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break;
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}
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}
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*/
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for (uint8_t cmdsID = 0; cmdsID < sizeof(TuyaExcludeCMDsFromMQTT); cmdsID++) {
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if (pgm_read_byte(TuyaExcludeCMDsFromMQTT +cmdsID) == Tuya.buffer[3]) {
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isCmdToSuppress = true;
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break;
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}
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}
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if (!(isCmdToSuppress && Settings->flag5.tuya_exclude_from_mqtt)) { // SetOption137 - (Tuya) When Set, avoid the (MQTT-) publish of defined Tuya CMDs (see TuyaExcludeCMDsFromMQTT) if SetOption66 is active
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MqttPublishPrefixTopic_P(RESULT_OR_TELE, PSTR(D_JSON_TUYA_MCU_RECEIVED));
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} else {
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AddLog(LOG_LEVEL_DEBUG, ResponseData());
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}
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if (Tuya.cmd_checksum == serial_in_byte) { // Compare checksum and process packet
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AddLogBuffer(LOG_LEVEL_DEBUG_MORE,(uint8_t*)Tuya.buffer,Tuya.byte_counter);
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TuyaProcessMessage();
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} else {
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AddLog(LOG_LEVEL_DEBUG, ResponseData());
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AddLog(LOG_LEVEL_DEBUG_MORE,PSTR("TYA: checksum error: 0x%02X instead of 0x%02X"), serial_in_byte, Tuya.cmd_checksum);
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}
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XdrvRulesProcess(0);
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if (dpId != 0 && Settings->tuyamcu_topic) { // Publish a /STAT Topic ready to use for any home automation system
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if (!Tuya.SuspendTopic) {
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char scommand[13];
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snprintf_P(scommand, sizeof(scommand), PSTR("DpType%uId%u"), dpDataType, dpId);
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if (dpDataType != 3 && dpDataType != 5) { Response_P(PSTR("%u"), DataVal); }
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else { Response_P(PSTR("%s"), DataStr); }
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MqttPublishPrefixTopic_P(STAT, scommand);
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}
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}
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if (!Tuya.low_power_mode) {
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TuyaNormalPowerModePacketProcess();
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} else {
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TuyaLowPowerModePacketProcess();
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}
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Tuya.byte_counter = 0;
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Tuya.cmd_status = 0;
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Tuya.cmd_checksum = 0;
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Tuya.data_len = 0;
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} // read additional packets from TUYA
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}
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else if (Tuya.byte_counter < TUYA_BUFFER_SIZE -1) { // add char to string if it still fits
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Tuya.buffer[Tuya.byte_counter++] = serial_in_byte;
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Tuya.cmd_checksum += serial_in_byte;
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} else {
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}
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else { // buffer overflow, reset the state machine
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Tuya.byte_counter = 0;
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Tuya.cmd_status = 0;
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Tuya.cmd_checksum = 0;
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Tuya.data_len = 0;
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}
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}
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// reset the state machine if no bytes received since a long time
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if (Tuya.byte_counter > 0 && (millis() - time_last_byte_received) > TUYA_CMD_TIMEOUT) {
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Tuya.byte_counter = 0;
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AddLog(LOG_LEVEL_DEBUG_MORE,PSTR("TYA: serial receive timeout"));
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}
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}
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bool TuyaButtonPressed(void) {
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@ -1651,6 +1664,7 @@ bool Xdrv16(uint32_t function) {
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if (FUNC_MODULE_INIT == function) {
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result = TuyaModuleSelected();
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Tuya.active = result;
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AddLog(LOG_LEVEL_DEBUG,PSTR("TYA: Active=%d"),Tuya.active);
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}
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else if (Tuya.active) {
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switch (function) {
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