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Tasmota/tasmota/tasmota_xdrv_driver/xdrv_12_discovery.ino

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/*
xdrv_12_discovery.ino - MQTT Discovery support for Tasmota
Copyright (C) 2021 Erik Montnemery, Federico Leoni and Theo Arends
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_TASMOTA_DISCOVERY
#undef USE_HOME_ASSISTANT
/*********************************************************************************************\
* Tasmota discovery
*
* Supported by latest versions of Home Assistant (with hatasmota) and TasmoManager.
*
* SetOption19 0 - [DiscoverOff 0] [Discover 1] Enables discovery (default)
* SetOption19 1 - [DiscoverOff 1] [Discover 0] Disables discovery and removes retained message from MQTT server
* SetOption73 1 - [DiscoverButton] Enable discovery for buttons
* SetOption114 1 - [DiscoverSwitch] Enable discovery for switches
\*********************************************************************************************/
#define XDRV_12 12
void TasDiscoverMessage(void) {
uint32_t ip_address = (uint32_t)WiFi.localIP();
char* hostname = TasmotaGlobal.hostname;
#if defined(ESP32) && CONFIG_IDF_TARGET_ESP32 && defined(USE_ETHERNET)
if (static_cast<uint32_t>(EthernetLocalIP()) != 0) {
ip_address = (uint32_t)EthernetLocalIP();
hostname = EthernetHostname();
}
#endif
Response_P(PSTR("{\"ip\":\"%_I\"," // IP Address
"\"dn\":\"%s\"," // Device Name
"\"fn\":["), // Friendly Names (start)
ip_address,
SettingsText(SET_DEVICENAME));
uint32_t maxfn = (TasmotaGlobal.devices_present > MAX_FRIENDLYNAMES) ? MAX_FRIENDLYNAMES : (!TasmotaGlobal.devices_present) ? 1 : TasmotaGlobal.devices_present;
for (uint32_t i = 0; i < MAX_FRIENDLYNAMES; i++) {
char fname[TOPSZ];
snprintf_P(fname, sizeof(fname), PSTR("\"%s\""), EscapeJSONString(SettingsText(SET_FRIENDLYNAME1 +i)).c_str());
ResponseAppend_P(PSTR("%s%s"), (i > 0 ? "," : ""), (i < maxfn) ? fname : PSTR("null"));
}
bool TuyaMod = false;
#ifdef USE_TUYA_MCU
TuyaMod = IsModuleTuya();
#endif
bool iFanMod = false;
#ifdef ESP8266
iFanMod = ((SONOFF_IFAN02 == TasmotaGlobal.module_type) || (SONOFF_IFAN03 == TasmotaGlobal.module_type));
#endif // ESP8266
ResponseAppend_P(PSTR("]," // Friendly Names (end)
"\"hn\":\"%s\"," // Host Name
"\"mac\":\"%s\"," // Full MAC as Device id
"\"md\":\"%s\"," // Module or Template Name
"\"ty\":%d,\"if\":%d," // Flag for TuyaMCU and Ifan devices
"\"ofln\":\"" MQTT_LWT_OFFLINE "\"," // Payload Offline
"\"onln\":\"" MQTT_LWT_ONLINE "\"," // Payload Online
"\"state\":[\"%s\",\"%s\",\"%s\",\"%s\"]," // State text for "OFF","ON","TOGGLE","HOLD"
"\"sw\":\"%s\"," // Software Version
"\"t\":\"%s\"," // Topic
"\"ft\":\"%s\"," // Full Topic
"\"tp\":[\"%s\",\"%s\",\"%s\"]," // Topics for command, stat and tele
"\"rl\":["), // Relays (start)
hostname,
NetworkUniqueId().c_str(),
ModuleName().c_str(),
TuyaMod, iFanMod,
GetStateText(0), GetStateText(1), GetStateText(2), GetStateText(3),
TasmotaGlobal.version,
TasmotaGlobal.mqtt_topic,
SettingsText(SET_MQTT_FULLTOPIC),
SettingsText(SET_MQTTPREFIX1),
SettingsText(SET_MQTTPREFIX2),
SettingsText(SET_MQTTPREFIX3));
uint8_t light_idx = MAX_RELAYS + 1; // Will store the starting position of the lights
uint8_t light_subtype = 0;
bool light_controller_isCTRGBLinked = false;
#ifdef USE_LIGHT
light_subtype = Light.subtype;
if (light_subtype > LST_NONE) {
light_controller_isCTRGBLinked = light_controller.isCTRGBLinked();
if (!light_controller_isCTRGBLinked) { // One or two lights present
light_idx = TasmotaGlobal.devices_present - 2;
} else {
light_idx = TasmotaGlobal.devices_present - 1;
}
}
if ((Light.device > 0) && Settings->flag3.pwm_multi_channels) { // How many relays are light devices?
light_idx = TasmotaGlobal.devices_present - light_subtype;
}
#endif // USE_LIGHT
uint16_t Relay[MAX_RELAYS] = { 0 }; // Base array to store the relay type
uint16_t Shutter[MAX_RELAYS] = { 0 }; // Array to store a temp list for shutters
for (uint32_t i = 0; i < MAX_RELAYS; i++) {
if (i < TasmotaGlobal.devices_present) {
#ifdef USE_SHUTTER
if (Settings->flag3.shutter_mode) {
for (uint32_t k = 0; k < MAX_SHUTTERS; k++) {
if (Settings->shutter_startrelay[k] > 0) {
Shutter[Settings->shutter_startrelay[k]-1] = Shutter[Settings->shutter_startrelay[k]] = 1;
} else {
// terminate loop at first INVALID Settings->shutter_startrelay[i].
break;
}
}
}
#endif // USE_SHUTTER
if (Shutter[i] != 0) { // Check if there are shutters present
Relay[i] = 3; // Relay is a shutter
} else {
if (i >= light_idx || (iFanMod && (0 == i))) { // First relay on Ifan controls the light
Relay[i] = 2; // Relay is a light
} else {
if (!iFanMod) { // Relays 2-4 for ifan are controlled by FANSPEED and don't need to be present if TasmotaGlobal.module_type = SONOFF_IFAN02 or SONOFF_IFAN03
Relay[i] = 1; // Simple Relay
}
}
}
}
ResponseAppend_P(PSTR("%s%d"), (i > 0 ? "," : ""), Relay[i]); // Vector for the Official Integration
}
ResponseAppend_P(PSTR("]," // Relays (end)
"\"swc\":[")); // Switch modes (start)
// Enable Discovery for Switches only if SetOption114 is enabled
for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
ResponseAppend_P(PSTR("%s%d"), (i > 0 ? "," : ""), (PinUsed(GPIO_SWT1, i) && Settings->flag5.mqtt_switches) ? Settings->switchmode[i] : -1);
}
ResponseAppend_P(PSTR("]," // Switch modes (end)
"\"swn\":[")); // Switch names (start)
// Enable Discovery for Switches only if SetOption114 is enabled
for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
char sname[TOPSZ];
snprintf_P(sname, sizeof(sname), PSTR("\"%s\""), GetSwitchText(i).c_str());
ResponseAppend_P(PSTR("%s%s"), (i > 0 ? "," : ""), (PinUsed(GPIO_SWT1, i) && Settings->flag5.mqtt_switches) ? sname : PSTR("null"));
}
ResponseAppend_P(PSTR("]," // Switch names (end)
"\"btn\":[")); // Button flag (start)
bool SerialButton = false;
// Enable Discovery for Buttons only if SetOption73 is enabled
for (uint32_t i = 0; i < MAX_KEYS; i++) {
#ifdef ESP8266
SerialButton = ((0 == i) && (SONOFF_DUAL == TasmotaGlobal.module_type ));
#endif // ESP8266
ResponseAppend_P(PSTR("%s%d"), (i > 0 ? "," : ""), (SerialButton ? 1 : (PinUsed(GPIO_KEY1, i)) && Settings->flag3.mqtt_buttons));
}
ResponseAppend_P(PSTR("]," // Button flag (end)
"\"so\":{\"4\":%d," // SetOptions
"\"11\":%d,"
"\"13\":%d,"
"\"17\":%d,"
"\"20\":%d,"
"\"30\":%d,"
"\"68\":%d,"
"\"73\":%d,"
"\"82\":%d,"
"\"114\":%d,"
"\"117\":%d},"
"\"lk\":%d," // Light CTRGB linked
"\"lt_st\":%d," // Light SubType
"\"sho\":["), // Shutter Options (start)
Settings->flag.mqtt_response,
Settings->flag.button_swap,
Settings->flag.button_single,
Settings->flag.decimal_text,
Settings->flag.not_power_linked,
Settings->flag.hass_light,
Settings->flag3.pwm_multi_channels,
Settings->flag3.mqtt_buttons,
Settings->flag4.alexa_ct_range,
Settings->flag5.mqtt_switches,
Settings->flag5.fade_fixed_duration,
light_controller_isCTRGBLinked,
light_subtype);
for (uint32_t i = 0; i < MAX_SHUTTERS; i++) {
#ifdef USE_SHUTTER
ResponseAppend_P(PSTR("%s%d"), (i > 0 ? "," : ""), Settings->shutter_options[i]);
#else
ResponseAppend_P(PSTR("%s0"), (i > 0 ? "," : ""));
#endif // USE_SHUTTER
}
ResponseAppend_P(PSTR("]," // Shutter Options (end)
"\"sht\":[")); // Shutter Tilt (start)
for (uint32_t i = 0; i < MAX_SHUTTERS; i++) {
#ifdef USE_SHUTTER
ResponseAppend_P(PSTR("%s[%d,%d,%d]"), (i > 0 ? "," : ""),
Settings->shutter_tilt_config[0][i],
Settings->shutter_tilt_config[1][i],
Settings->shutter_tilt_config[2][i]);
#else
ResponseAppend_P(PSTR("%s[0,0,0]"), (i > 0 ? "," : ""));
#endif // USE_SHUTTER
}
ResponseAppend_P(PSTR("]," // Shutter Tilt (end)
"\"ver\":1}")); // Discovery version
}
void TasDiscovery(void) {
TasmotaGlobal.masterlog_level = LOG_LEVEL_DEBUG_MORE; // Hide topic on clean and remove use weblog 4 to show it
ResponseClear(); // Clear retained message
if (!Settings->flag.hass_discovery) { // SetOption19 - Clear retained message
TasDiscoverMessage(); // Build discovery message
}
char stopic[TOPSZ];
snprintf_P(stopic, sizeof(stopic), PSTR("tasmota/discovery/%s/config"), NetworkUniqueId().c_str());
MqttPublish(stopic, true);
if (!Settings->flag.hass_discovery) { // SetOption19 - Clear retained message
Response_P(PSTR("{\"sn\":"));
MqttShowSensor(true);
ResponseAppend_P(PSTR(",\"ver\":1}"));
}
snprintf_P(stopic, sizeof(stopic), PSTR("tasmota/discovery/%s/sensors"), NetworkUniqueId().c_str());
MqttPublish(stopic, true);
TasmotaGlobal.masterlog_level = LOG_LEVEL_NONE; // Restore WebLog state
}
void TasRediscover(void) {
TasmotaGlobal.discovery_counter = 1; // Delayed discovery or clear retained messages
}
void TasDiscoverInit(void) {
if (ResetReason() != REASON_DEEP_SLEEP_AWAKE) {
Settings->flag.hass_discovery = 0; // SetOption19 - Enable Tasmota discovery and Disable legacy Hass discovery
TasmotaGlobal.discovery_counter = 10; // Delayed discovery
}
}
/*********************************************************************************************\
* Stubs replacing legacy Hass discovery
\*********************************************************************************************/
void HAssPublishStatus(void) { return; }
void HAssDiscover(void) { TasRediscover(); }
/*********************************************************************************************\
* Commands
*
* Discover 0 - Disables discovery and removes retained message from MQTT server
* Discover 1 - Enables discovery (default)
* DiscoverOff 0 - Enables discovery (default)
* DiscoverOff 1 - Disables discovery and removes retained message from MQTT server
* DiscoverButton 1 - Enable discovery for buttons
* DiscoverSwitch 1 - Enable discovery for switches
\*********************************************************************************************/
const char kTasDiscoverCommands[] PROGMEM = "Discover|" // Prefix
// SetOption synonyms
"Off|Button|Switch|"
// Commands
"|";
SO_SYNONYMS(kTasDiscoverSynonyms,
19, 73, 114 );
void (* const TasDiscoverCommand[])(void) PROGMEM = {
&CmndTasDiscover };
void CmndTasDiscover(void) {
if (XdrvMailbox.payload >= 0) {
Settings->flag.hass_discovery = !(XdrvMailbox.payload & 1); // SetOption19 - Tasmota discovery (0)
TasRediscover();
}
ResponseCmndChar(GetStateText(!Settings->flag.hass_discovery));
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdrv12(uint8_t function) {
bool result = false;
if (Settings->flag.mqtt_enabled) { // SetOption3 - Enable MQTT
switch (function) {
case FUNC_EVERY_SECOND:
if (TasmotaGlobal.discovery_counter) {
TasmotaGlobal.discovery_counter--;
if (!TasmotaGlobal.discovery_counter) {
TasDiscovery(); // Send the topics for discovery
}
}
break;
case FUNC_COMMAND:
result = DecodeCommand(kTasDiscoverCommands, TasDiscoverCommand, kTasDiscoverSynonyms);
break;
case FUNC_MQTT_SUBSCRIBE:
if (0 == Mqtt.initial_connection_state) {
TasRediscover();
}
break;
case FUNC_MQTT_INIT:
TasDiscoverInit();
break;
}
}
return result;
}
#endif // USE_TASMOTA_DISCOVERY
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