mirror of https://github.com/arendst/Tasmota.git
206 lines
7.8 KiB
C++
206 lines
7.8 KiB
C++
/*
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xdrv_snfbridge.ino - sonoff RF bridge 433 support for Sonoff-Tasmota
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Copyright (C) 2017 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*********************************************************************************************\
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Sonoff RF Bridge 433
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\*********************************************************************************************/
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#define SFB_TIME_AVOID_DUPLICATE 2000 // Milliseconds
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uint8_t sonoff_bridge_receive_flag = 0;
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uint8_t sonoff_bridge_learn_key = 1;
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uint8_t sonoff_bridge_learn_active = 0;
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uint32_t sonoff_bridge_last_received_id = 0;
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unsigned long sonoff_bridge_last_time = 0;
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void SonoffBridgeReceived()
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{
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uint16_t sync_time = 0;
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uint16_t low_time = 0;
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uint16_t high_time = 0;
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uint32_t received_id = 0;
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char svalue[90];
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char rfkey[8];
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svalue[0] = '\0';
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for (byte i = 0; i < serial_in_byte_counter; i++) {
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snprintf_P(svalue, sizeof(svalue), PSTR("%s%02X "), svalue, serial_in_buffer[i]);
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}
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snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_BRIDGE D_RECEIVED " %s"), svalue);
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AddLog(LOG_LEVEL_DEBUG);
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if (0xA2 == serial_in_buffer[0]) { // Learn timeout
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sonoff_bridge_learn_active = 0;
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_LEARN_FAILED "\"}"), sonoff_bridge_learn_key);
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MqttPublishPrefixTopic_P(5, PSTR(D_CMND_RFKEY));
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}
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else if (0xA3 == serial_in_buffer[0]) { // Learned A3 20 F8 01 18 03 3E 2E 1A 22 55
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sonoff_bridge_learn_active = 0;
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low_time = serial_in_buffer[3] << 8 | serial_in_buffer[4]; // Low time in uSec
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high_time = serial_in_buffer[5] << 8 | serial_in_buffer[6]; // High time in uSec
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if (low_time && high_time) {
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for (byte i = 0; i < 9; i++) {
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Settings.rf_code[sonoff_bridge_learn_key][i] = serial_in_buffer[i +1];
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}
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_LEARNED "\"}"), sonoff_bridge_learn_key);
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} else {
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_LEARN_FAILED "\"}"), sonoff_bridge_learn_key);
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}
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MqttPublishPrefixTopic_P(5, PSTR(D_CMND_RFKEY));
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}
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else if (0xA4 == serial_in_buffer[0]) { // Received RF data A4 20 EE 01 18 03 3E 2E 1A 22 55
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sync_time = serial_in_buffer[1] << 8 | serial_in_buffer[2]; // Sync time in uSec
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low_time = serial_in_buffer[3] << 8 | serial_in_buffer[4]; // Low time in uSec
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high_time = serial_in_buffer[5] << 8 | serial_in_buffer[6]; // High time in uSec
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received_id = serial_in_buffer[7] << 16 | serial_in_buffer[8] << 8 | serial_in_buffer[9];
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unsigned long now = millis();
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if (!((received_id == sonoff_bridge_last_received_id) && (now - sonoff_bridge_last_time < SFB_TIME_AVOID_DUPLICATE))) {
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sonoff_bridge_last_received_id = received_id;
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sonoff_bridge_last_time = now;
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strncpy_P(rfkey, PSTR("\"" D_NONE "\""), sizeof(rfkey));
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for (byte i = 1; i <= 16; i++) {
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if (Settings.rf_code[i][0]) {
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uint32_t send_id = Settings.rf_code[i][6] << 16 | Settings.rf_code[i][7] << 8 | Settings.rf_code[i][8];
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if (send_id == received_id) {
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snprintf_P(rfkey, sizeof(rfkey), PSTR("%d"), i);
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break;
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}
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}
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}
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_RFRECEIVED "\":{\"" D_SYNC "\":%d, \"" D_LOW "\":%d, \"" D_HIGH "\":%d, \"" D_DATA "\":\"%06X\", \"" D_CMND_RFKEY "\":%s}}"),
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sync_time, low_time, high_time, received_id, rfkey);
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MqttPublishPrefixTopic_P(6, PSTR(D_RFRECEIVED));
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#ifdef USE_DOMOTICZ
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DomoticzSensor(DZ_COUNT, received_id); // Send rid as Domoticz Counter value
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#endif // USE_DOMOTICZ
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}
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}
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}
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boolean SonoffBridgeSerialInput()
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{
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if (sonoff_bridge_receive_flag) {
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if (!((serial_in_byte_counter == 0) && (serial_in_byte == 0))) { // Skip leading 0
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serial_in_buffer[serial_in_byte_counter++] = serial_in_byte;
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if (0x55 == serial_in_byte) { // 0x55 - End of text
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SonoffBridgeReceived();
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sonoff_bridge_receive_flag = 0;
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return 1;
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}
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}
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serial_in_byte = 0;
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}
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if (0xAA == serial_in_byte) { // 0xAA - Start of text
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serial_in_byte_counter = 0;
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serial_in_byte = 0;
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sonoff_bridge_receive_flag = 1;
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}
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return 0;
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}
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void SonoffBridgeSendAck()
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{
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Serial.write(0xAA); // Start of Text
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Serial.write(0xA0); // Acknowledge
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Serial.write(0x55); // End of Text
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}
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void SonoffBridgeSend(uint8_t idx, uint8_t key)
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{
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uint8_t code;
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key--; // Support 1 to 16
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Serial.write(0xAA); // Start of Text
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Serial.write(0xA5); // Send following code
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for (uint8_t i = 0; i < 8; i++) {
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Serial.write(Settings.rf_code[idx][i]);
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}
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if (0 == idx) {
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code = (0x10 << (key >> 2)) | (1 << (key & 3)); // 11,12,14,18,21,22,24,28,41,42,44,48,81,82,84,88
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} else {
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code = Settings.rf_code[idx][8];
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}
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Serial.write(code);
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Serial.write(0x55); // End of Text
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Serial.flush();
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#ifdef USE_DOMOTICZ
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// uint32_t rid = Settings.rf_code[idx][6] << 16 | Settings.rf_code[idx][7] << 8 | code;
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// DomoticzSensor(DZ_COUNT, rid); // Send rid as Domoticz Counter value
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#endif // USE_DOMOTICZ
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}
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void SonoffBridgeLearn(uint8_t key)
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{
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sonoff_bridge_learn_key = key;
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sonoff_bridge_learn_active = 1;
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Serial.write(0xAA); // Start of Text
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Serial.write(0xA1); // Start learning
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Serial.write(0x55); // End of Text
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}
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/*********************************************************************************************\
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* Commands
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\*********************************************************************************************/
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boolean SonoffBridgeCommand(char *type, uint16_t index, char *dataBuf, uint16_t data_len, int16_t payload)
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{
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boolean serviced = true;
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char *p;
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if (!strcasecmp_P(type, PSTR(D_CMND_RFDEFAULT))) {
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if (4 == data_len) {
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uint16_t hexcode = strtol(dataBuf, &p, 16);
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uint8_t msb = hexcode >> 8;
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uint8_t lsb = hexcode & 0xFF;
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if ((hexcode > 0) && (hexcode < 0x7FFF) && (msb != 0x55) && (lsb != 0x55)) {
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Settings.rf_code[0][6] = msb;
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Settings.rf_code[0][7] = lsb;
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}
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}
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFDEFAULT "\":\"%0X%0X\"}"), Settings.rf_code[0][6], Settings.rf_code[0][7]);
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}
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else if (!strcasecmp_P(type, PSTR(D_CMND_RFKEY)) && (index > 0) && (index <= 16)) {
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if (!sonoff_bridge_learn_active) {
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if (2 == payload) {
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SonoffBridgeLearn(index);
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_START_LEARNING "\"}"), index);
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}
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else if (3 == payload) {
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Settings.rf_code[index][0] = 0;
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_SET_TO_DEFAULT "\"}"), index);
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} else {
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if ((1 == payload) || (0 == Settings.rf_code[index][0])) {
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SonoffBridgeSend(0, index);
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_DEFAULT_SENT "\"}"), index);
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} else {
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SonoffBridgeSend(index, 0);
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_LEARNED_SENT "\"}"), index);
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}
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}
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} else {
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snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("{\"" D_CMND_RFKEY "%d\":\"" D_LEARNING_ACTIVE "\"}"), sonoff_bridge_learn_key);
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}
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}
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else {
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serviced = false; // Unknown command
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}
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return serviced;
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}
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