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Tasmota/sonoff/xdrv_12_home_assistant.ino

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/*
xdrv_12_home_assistant.ino - home assistant support for Sonoff-Tasmota
Copyright (C) 2018 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_HOME_ASSISTANT
const char HASS_DISCOVER_SWITCH[] PROGMEM =
"{\"name\":\"%s\"," // dualr2 1
"\"command_topic\":\"%s\"," // cmnd/dualr2/POWER2
"\"state_topic\":\"%s\"," // stat/dualr2/RESULT (implies "\"optimistic\":\"false\",")
"\"value_template\":\"{{value_json.%s}}\"," // POWER2
"\"payload_off\":\"%s\"," // OFF
"\"payload_on\":\"%s\"," // ON
// "\"optimistic\":\"false\"," // false is Hass default when state_topic is set
"\"availability_topic\":\"%s\"," // tele/dualr2/LWT
"\"payload_available\":\"" D_ONLINE "\"," // Online
"\"payload_not_available\":\"" D_OFFLINE "\""; // Offline
const char HASS_DISCOVER_BUTTON[] PROGMEM =
"{\"name\":\"%s\"," // dualr2 1 BTN
"\"state_topic\":\"%s\"," // cmnd/dualr2/POWER (implies "\"optimistic\":\"false\",")
// "\"value_template\":\"{{value_json.%s}}\"," // POWER2
"\"payload_on\":\"%s\"," // TOGGLE
// "\"optimistic\":\"false\"," // false is Hass default when state_topic is set
"\"availability_topic\":\"%s\"," // tele/dualr2/LWT
"\"payload_available\":\"" D_ONLINE "\"," // Online
"\"payload_not_available\":\"" D_OFFLINE "\""; // Offline
const char HASS_DISCOVER_LIGHT_DIMMER[] PROGMEM =
"%s,\"brightness_command_topic\":\"%s\"," // cmnd/led2/Dimmer
"\"brightness_state_topic\":\"%s\"," // stat/led2/RESULT
"\"brightness_scale\":100," // 100%
"\"on_command_type\":\"brightness\"," // power on (first), power on (last), no power on (brightness)
"\"brightness_value_template\":\"{{value_json." D_CMND_DIMMER "}}\"";
const char HASS_DISCOVER_LIGHT_COLOR[] PROGMEM =
"%s,\"rgb_command_topic\":\"%s\"," // cmnd/led2/Color
"\"rgb_state_topic\":\"%s\"," // stat/led2/RESULT
"\"rgb_value_template\":\"{{value_json." D_CMND_COLOR "}}\"";
// "\"rgb_value_template\":\"{{value_json." D_CMND_COLOR " | join(',')}}\"";
const char HASS_DISCOVER_LIGHT_CT[] PROGMEM =
"%s,\"color_temp_command_topic\":\"%s\"," // cmnd/led2/CT
"\"color_temp_state_topic\":\"%s\"," // stat/led2/RESULT
"\"color_temp_value_template\":\"{{value_json." D_CMND_COLORTEMPERATURE "}}\"";
/*
const char HASS_DISCOVER_LIGHT_SCHEME[] PROGMEM =
"%s,\"effect_command_topic\":\"%s\"," // cmnd/led2/Scheme
"\"effect_state_topic\":\"%s\"," // stat/led2/RESULT
"\"effect_value_template\":\"{{value_json." D_CMND_SCHEME "}}\","
"\"effect_list\":[\"0\",\"1\",\"2\",\"3\",\"4\"]"; // string list with reference to scheme parameter. Currently only supports numbers 0 to 11 as it make the mqtt string too long
*/
void HAssDiscoverRelay()
{
char sidx[8];
char stopic[TOPSZ];
bool is_light = false;
bool is_topic_light = false;
for (int i = 1; i <= MAX_RELAYS; i++) {
is_light = ((i == devices_present) && (light_type));
is_topic_light = Settings.flag.hass_light;
mqtt_data[0] = '\0'; // Clear retained message
snprintf_P(sidx, sizeof(sidx), PSTR("_%d"), i);
// Clear "other" topic first in case the device has been reconfigured
snprintf_P(stopic, sizeof(stopic), PSTR(HOME_ASSISTANT_DISCOVERY_PREFIX "/%s/%s%s/config"), (is_topic_light) ? "switch" : "light", mqtt_topic, sidx);
MqttPublish(stopic, true);
// Clear or Set topic
snprintf_P(stopic, sizeof(stopic), PSTR(HOME_ASSISTANT_DISCOVERY_PREFIX "/%s/%s%s/config"), (is_topic_light) ? "light" : "switch", mqtt_topic, sidx);
if (Settings.flag.hass_discovery && (i <= devices_present)) {
char name[33];
char value_template[33];
char command_topic[TOPSZ];
char state_topic[TOPSZ];
char availability_topic[TOPSZ];
if (i > MAX_FRIENDLYNAMES) {
snprintf_P(name, sizeof(name), PSTR("%s %d"), Settings.friendlyname[0], i);
} else {
snprintf_P(name, sizeof(name), Settings.friendlyname[i -1]);
}
GetPowerDevice(value_template, i, sizeof(value_template), Settings.flag.device_index_enable);
GetTopic_P(command_topic, CMND, mqtt_topic, value_template);
GetTopic_P(state_topic, STAT, mqtt_topic, S_RSLT_RESULT);
GetTopic_P(availability_topic, TELE, mqtt_topic, S_LWT);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_SWITCH, name, command_topic, state_topic, value_template, Settings.state_text[0], Settings.state_text[1], availability_topic);
if (is_light) {
char brightness_command_topic[TOPSZ];
GetTopic_P(brightness_command_topic, CMND, mqtt_topic, D_CMND_DIMMER);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_LIGHT_DIMMER, mqtt_data, brightness_command_topic, state_topic);
if (light_subtype >= LST_RGB) {
char rgb_command_topic[TOPSZ];
GetTopic_P(rgb_command_topic, CMND, mqtt_topic, D_CMND_COLOR);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_LIGHT_COLOR, mqtt_data, rgb_command_topic, state_topic);
/*
char effect_command_topic[TOPSZ];
GetTopic_P(effect_command_topic, CMND, mqtt_topic, D_CMND_SCHEME);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_LIGHT_SCHEME, mqtt_data, effect_command_topic, state_topic);
*/
}
if ((LST_COLDWARM == light_subtype) || (LST_RGBWC == light_subtype)) {
char color_temp_command_topic[TOPSZ];
GetTopic_P(color_temp_command_topic, CMND, mqtt_topic, D_CMND_COLORTEMPERATURE);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_LIGHT_CT, mqtt_data, color_temp_command_topic, state_topic);
}
}
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s}"), mqtt_data);
}
MqttPublish(stopic, true);
}
}
void HAssDiscoverButton()
{
char sidx[8];
char stopic[TOPSZ];
char key_topic[sizeof(Settings.button_topic)];
// Send info about buttons
char *tmp = Settings.button_topic;
Format(key_topic, tmp, sizeof(key_topic));
if ((strlen(key_topic) != 0) && strcmp(key_topic, "0")) {
for (byte button_index = 0; button_index < MAX_KEYS; button_index++) {
uint8_t button_present = 0;
if (!button_index && ((SONOFF_DUAL == Settings.module) || (CH4 == Settings.module))) {
button_present = 1;
} else {
if (pin[GPIO_KEY1 + button_index] < 99) {
button_present = 1;
}
}
mqtt_data[0] = '\0'; // Clear retained message
// Clear or Set topic
snprintf_P(sidx, sizeof(sidx), PSTR("_%d"), button_index+1);
snprintf_P(stopic, sizeof(stopic), PSTR(HOME_ASSISTANT_DISCOVERY_PREFIX "/%s/%s%s/config"), "binary_sensor", key_topic, sidx);
if (Settings.flag.hass_discovery && button_present) {
char name[33];
char value_template[33];
char state_topic[TOPSZ];
char availability_topic[TOPSZ];
if (button_index+1 > MAX_FRIENDLYNAMES) {
snprintf_P(name, sizeof(name), PSTR("%s %d BTN"), Settings.friendlyname[0], button_index+1);
} else {
snprintf_P(name, sizeof(name), PSTR("%s BTN"), Settings.friendlyname[button_index]);
}
GetPowerDevice(value_template, button_index+1, sizeof(value_template), Settings.flag.device_index_enable);
GetTopic_P(state_topic, CMND, key_topic, value_template); // State of button is sent as CMND TOGGLE
GetTopic_P(availability_topic, TELE, mqtt_topic, S_LWT);
snprintf_P(mqtt_data, sizeof(mqtt_data), HASS_DISCOVER_BUTTON, name, state_topic, Settings.state_text[2], availability_topic);
snprintf_P(mqtt_data, sizeof(mqtt_data), PSTR("%s}"), mqtt_data);
}
MqttPublish(stopic, true);
}
}
}
void HAssDiscovery(uint8_t mode)
{
// Configure Tasmota for default Home Assistant parameters to keep discovery message as short as possible
if (Settings.flag.hass_discovery) {
Settings.flag.mqtt_response = 0; // Response always as RESULT and not as uppercase command
Settings.flag.decimal_text = 1; // Respond with decimal color values
// Settings.light_scheme = 0; // To just control color it needs to be Scheme 0
// strncpy_P(Settings.mqtt_fulltopic, PSTR("%prefix%/%topic%/"), sizeof(Settings.mqtt_fulltopic)); // Make MQTT topic as short as possible to make this process posible within MQTT_MAX_PACKET_SIZE
}
if (Settings.flag.hass_discovery || (1 == mode)) {
// Send info about relays and lights
HAssDiscoverRelay();
// Send info about buttons
HAssDiscoverButton();
// TODO: Send info about switches
// TODO: Send info about sensors
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
#define XDRV_12
boolean Xdrv12(byte function)
{
boolean result = false;
if (Settings.flag.mqtt_enabled) {
switch (function) {
case FUNC_MQTT_INIT:
HAssDiscovery(0);
break;
}
}
return result;
}
#endif // USE_HOME_ASSISTANT
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