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emsesp.cpp
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emsesp.cpp
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/*
* EMS-ESP - https://github.com/emsesp/EMS-ESP
* Copyright 2020 Paul Derbyshire
*
* 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/>.
*/
#include "emsesp.h"
namespace emsesp {
AsyncWebServer webServer(80);
#if defined(EMSESP_STANDALONE)
FS dummyFS;
ESP8266React EMSESP::esp8266React(&webServer, &dummyFS);
WebSettingsService EMSESP::webSettingsService = WebSettingsService(&webServer, &dummyFS, EMSESP::esp8266React.getSecurityManager());
WebCustomizationService EMSESP::webCustomizationService = WebCustomizationService(&webServer, &dummyFS, EMSESP::esp8266React.getSecurityManager());
#else
ESP8266React EMSESP::esp8266React(&webServer, &LittleFS);
WebSettingsService EMSESP::webSettingsService = WebSettingsService(&webServer, &LittleFS, EMSESP::esp8266React.getSecurityManager());
WebCustomizationService EMSESP::webCustomizationService = WebCustomizationService(&webServer, &LittleFS, EMSESP::esp8266React.getSecurityManager());
#endif
WebStatusService EMSESP::webStatusService = WebStatusService(&webServer, EMSESP::esp8266React.getSecurityManager());
WebDataService EMSESP::webDataService = WebDataService(&webServer, EMSESP::esp8266React.getSecurityManager());
WebAPIService EMSESP::webAPIService = WebAPIService(&webServer, EMSESP::esp8266React.getSecurityManager());
WebLogService EMSESP::webLogService = WebLogService(&webServer, EMSESP::esp8266React.getSecurityManager());
using DeviceFlags = EMSdevice;
using DeviceType = EMSdevice::DeviceType;
std::vector<std::unique_ptr<EMSdevice>> EMSESP::emsdevices; // array of all the detected EMS devices
std::vector<EMSESP::Device_record> EMSESP::device_library_; // library of all our known EMS devices, in heap
uuid::log::Logger EMSESP::logger_{F_(emsesp), uuid::log::Facility::KERN};
uuid::log::Logger EMSESP::logger() {
return logger_;
}
// The services
RxService EMSESP::rxservice_; // incoming Telegram Rx handler
TxService EMSESP::txservice_; // outgoing Telegram Tx handler
Mqtt EMSESP::mqtt_; // mqtt handler
System EMSESP::system_; // core system services
Console EMSESP::console_; // telnet and serial console
DallasSensor EMSESP::dallassensor_; // Dallas sensors
AnalogSensor EMSESP::analogsensor_; // Analog sensors
Shower EMSESP::shower_; // Shower logic
// static/common variables
uint16_t EMSESP::watch_id_ = WATCH_ID_NONE; // for when log is TRACE. 0 means no trace set
uint8_t EMSESP::watch_ = 0; // trace off
uint16_t EMSESP::read_id_ = WATCH_ID_NONE;
bool EMSESP::read_next_ = false;
uint16_t EMSESP::publish_id_ = 0;
bool EMSESP::tap_water_active_ = false; // for when Boiler states we having running warm water. used in Shower()
uint32_t EMSESP::last_fetch_ = 0;
uint8_t EMSESP::publish_all_idx_ = 0;
uint8_t EMSESP::unique_id_count_ = 0;
bool EMSESP::trace_raw_ = false;
uint16_t EMSESP::wait_validate_ = 0;
bool EMSESP::wait_km_ = true;
// for a specific EMS device go and request data values
// or if device_id is 0 it will fetch from all our known and active devices
void EMSESP::fetch_device_values(const uint8_t device_id) {
for (const auto & emsdevice : emsdevices) {
if ((device_id == 0) || emsdevice->is_device_id(device_id)) {
emsdevice->fetch_values();
if (device_id != 0) {
return; // quit, we only want to return the selected device
}
}
}
}
// see if the deviceID exists
bool EMSESP::valid_device(const uint8_t device_id) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && emsdevice->is_device_id(device_id)) {
return true;
}
}
return false; // can't find it
}
// for a specific EMS device type go and request data values
void EMSESP::fetch_device_values_type(const uint8_t device_type) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_type)) {
emsdevice->fetch_values();
}
}
}
bool EMSESP::cmd_is_readonly(const uint8_t device_type, const char * cmd, const int8_t id) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_type)) {
return emsdevice->is_readonly(cmd, id);
}
}
return false;
}
// clears list of recognized devices
void EMSESP::clear_all_devices() {
// temporarily removed: clearing the list causes a crash, the associated commands and mqtt should also be removed.
// emsdevices.clear(); // remove entries, but doesn't delete actual devices
}
// return number of devices of a known type
uint8_t EMSESP::count_devices(const uint8_t device_type) {
uint8_t count = 0;
for (const auto & emsdevice : emsdevices) {
if (emsdevice) {
count += (emsdevice->device_type() == device_type);
}
}
return count;
}
// return total number of devices excluding the Controller
uint8_t EMSESP::count_devices() {
uint8_t count = 0;
for (const auto & emsdevice : emsdevices) {
if (emsdevice) {
count += (emsdevice->device_type() != EMSdevice::DeviceType::CONTROLLER);
}
}
return count;
}
// returns the index of a device if there are more of the same type
// or 0 if there is only one or none
uint8_t EMSESP::device_index(const uint8_t device_type, const uint8_t unique_id) {
if (count_devices(device_type) <= 1) {
return 0; // none or only 1 device exists
}
uint8_t index = 1;
for (const auto & emsdevice : emsdevices) {
if (emsdevice->device_type() == device_type) {
// did we find it?
if (emsdevice->unique_id() == unique_id) {
return index;
}
index++;
}
}
return 0; // didn't find it
}
// scans for new devices
void EMSESP::scan_devices() {
EMSESP::clear_all_devices();
EMSESP::send_read_request(EMSdevice::EMS_TYPE_UBADevices, EMSdevice::EMS_DEVICE_ID_BOILER);
}
// to watch both type IDs and deviceIDs
void EMSESP::watch_id(uint16_t watch_id) {
watch_id_ = watch_id;
}
// resets all counters and bumps the UART
// this is called when the tx_mode is persisted in the FS either via Web UI or the console
void EMSESP::uart_init() {
uint8_t tx_mode = 0;
uint8_t rx_gpio = 0;
uint8_t tx_gpio = 0;
EMSESP::webSettingsService.read([&](WebSettings & settings) {
tx_mode = settings.tx_mode;
rx_gpio = settings.rx_gpio;
tx_gpio = settings.tx_gpio;
});
EMSuart::stop();
// don't start UART if we have invalid GPIOs
if (System::is_valid_gpio(rx_gpio) && System::is_valid_gpio(tx_gpio)) {
EMSuart::start(tx_mode, rx_gpio, tx_gpio); // start UART
} else {
LOG_WARNING(F("Invalid UART Rx/Tx GPIOs. Check config."));
}
txservice_.start(); // sends out request to EMS bus for all devices
// force a fetch for all new values, unless Tx is set to off
if (tx_mode != 0) {
EMSESP::fetch_device_values();
}
}
// return status of bus: connected (0), connected but Tx is broken (1), disconnected (2)
uint8_t EMSESP::bus_status() {
if (!rxservice_.bus_connected()) {
return BUS_STATUS_OFFLINE;
}
// check if we have Tx issues.
uint32_t total_sent = txservice_.telegram_read_count() + txservice_.telegram_write_count();
uint32_t total_fail = txservice_.telegram_read_fail_count() + txservice_.telegram_write_fail_count();
// nothing sent and also no errors - must be ok
if ((total_sent == 0) && (total_fail == 0)) {
return BUS_STATUS_CONNECTED;
}
// nothing sent, but have Tx errors
if ((total_sent == 0) && (total_fail != 0)) {
return BUS_STATUS_TX_ERRORS;
}
// Tx Failure rate > 10%
if ((total_fail < total_sent) && (((total_fail * 100) / total_sent) > EMSbus::EMS_TX_ERROR_LIMIT)) {
return BUS_STATUS_TX_ERRORS;
}
return BUS_STATUS_CONNECTED;
}
// show the EMS bus status plus both Rx and Tx queues
void EMSESP::show_ems(uuid::console::Shell & shell) {
// EMS bus information
switch (bus_status()) {
case BUS_STATUS_OFFLINE:
shell.printfln(F("EMS Bus is disconnected."));
break;
case BUS_STATUS_TX_ERRORS:
shell.printfln(F("EMS Bus is connected, but Tx is not stable."));
break;
default:
shell.printfln(F("EMS Bus is connected."));
break;
}
shell.println();
if (bus_status() != BUS_STATUS_OFFLINE) {
shell.printfln(F("EMS Bus info:"));
EMSESP::webSettingsService.read([&](WebSettings & settings) { shell.printfln(F(" Tx mode: %d"), settings.tx_mode); });
shell.printfln(F(" Bus protocol: %s"), EMSbus::is_ht3() ? F("HT3") : F("Buderus"));
shell.printfln(F(" #recognized EMS devices: %d"), EMSESP::emsdevices.size());
shell.printfln(F(" #telegrams received: %d"), rxservice_.telegram_count());
shell.printfln(F(" #read requests sent: %d"), txservice_.telegram_read_count());
shell.printfln(F(" #write requests sent: %d"), txservice_.telegram_write_count());
shell.printfln(F(" #incomplete telegrams: %d"), rxservice_.telegram_error_count());
shell.printfln(F(" #read fails (after %d retries): %d"), TxService::MAXIMUM_TX_RETRIES, txservice_.telegram_read_fail_count());
shell.printfln(F(" #write fails (after %d retries): %d"), TxService::MAXIMUM_TX_RETRIES, txservice_.telegram_write_fail_count());
shell.printfln(F(" Rx line quality: %d%%"), rxservice_.quality());
shell.printfln(F(" Tx line quality: %d%%"), (txservice_.read_quality() + txservice_.read_quality()) / 2);
shell.println();
}
// Rx queue
auto rx_telegrams = rxservice_.queue();
if (rx_telegrams.empty()) {
shell.printfln(F("Rx Queue is empty"));
} else {
shell.printfln(F("Rx Queue (%ld telegram%s):"), rx_telegrams.size(), rx_telegrams.size() == 1 ? "" : "s");
for (const auto & it : rx_telegrams) {
shell.printfln(F(" [%02d] %s"), it.id_, pretty_telegram(it.telegram_).c_str());
}
}
shell.println();
// Tx queue
auto tx_telegrams = txservice_.queue();
if (tx_telegrams.empty()) {
shell.printfln(F("Tx Queue is empty"));
} else {
shell.printfln(F("Tx Queue (%ld telegram%s):"), tx_telegrams.size(), tx_telegrams.size() == 1 ? "" : "s");
std::string op;
for (const auto & it : tx_telegrams) {
if ((it.telegram_->operation) == Telegram::Operation::TX_RAW) {
op = read_flash_string(F("RAW "));
} else if ((it.telegram_->operation) == Telegram::Operation::TX_READ) {
op = read_flash_string(F("READ "));
} else if ((it.telegram_->operation) == Telegram::Operation::TX_WRITE) {
op = read_flash_string(F("WRITE"));
}
shell.printfln(F(" [%02d%c] %s %s"), it.id_, ((it.retry_) ? '*' : ' '), op.c_str(), pretty_telegram(it.telegram_).c_str());
}
}
shell.println();
}
// show EMS device values to the shell console
// generate_values_json is called in verbose mode
void EMSESP::show_device_values(uuid::console::Shell & shell) {
if (emsdevices.empty()) {
shell.printfln(F("No EMS devices detected."));
shell.println();
return;
}
// do this in the order of factory classes to keep a consistent order when displaying
for (const auto & device_class : EMSFactory::device_handlers()) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_class.first)) {
// print header
shell.printfln(F("%s: %s (%d)"), emsdevice->device_type_name().c_str(), emsdevice->to_string().c_str(), emsdevice->count_entities());
DynamicJsonDocument doc(EMSESP_JSON_SIZE_XXLARGE_DYN); // use max size
JsonObject json = doc.to<JsonObject>();
emsdevice->generate_values(json, DeviceValueTAG::TAG_NONE, true, EMSdevice::OUTPUT_TARGET::CONSOLE); // verbose mode and nested
// print line
uint8_t id = 0;
for (JsonPair p : json) {
const char * key = p.key().c_str();
shell.printf(" %s: ", key);
JsonVariant data = p.value();
shell.print(COLOR_BRIGHT_GREEN);
if (data.is<const char *>()) {
shell.print(data.as<const char *>());
} else if (data.is<int>()) {
shell.print(data.as<int>());
} else if (data.is<float>()) {
char s[10];
shell.print(Helpers::render_value(s, data.as<float>(), 1));
} else if (data.is<bool>()) {
shell.print(data.as<bool>() ? F_(on) : F_(off));
}
// if there is a uom print it
std::string uom = emsdevice->get_value_uom(key);
if (uom == "°C" && EMSESP::system_.fahrenheit()) {
uom = "°F";
}
if (!uom.empty()) {
shell.print(' ');
shell.print(uom);
}
shell.print(COLOR_RESET);
shell.println();
id++;
}
shell.println();
}
}
}
}
// show Dallas temperature sensors and Analog sensors
void EMSESP::show_sensor_values(uuid::console::Shell & shell) {
if (dallassensor_.have_sensors()) {
shell.printfln(F("Temperature sensors:"));
char s[10];
char s2[10];
uint8_t fahrenheit = EMSESP::system_.fahrenheit() ? 2 : 0;
for (const auto & sensor : dallassensor_.sensors()) {
if (Helpers::hasValue(sensor.temperature_c)) {
shell.printfln(F(" %s: %s%s °%c%s (offset %s, ID: %s)"),
sensor.name().c_str(),
COLOR_BRIGHT_GREEN,
Helpers::render_value(s, sensor.temperature_c, 10, fahrenheit),
(fahrenheit == 0) ? 'C' : 'F',
COLOR_RESET,
Helpers::render_value(s2, sensor.offset(), 10, fahrenheit),
sensor.id().c_str());
} else {
shell.printfln(F(" %s (offset %s, ID: %s)"),
sensor.name().c_str(),
Helpers::render_value(s, sensor.offset(), 10, fahrenheit),
sensor.id().c_str());
}
}
shell.println();
}
if (analogsensor_.have_sensors()) {
char s[10];
char s2[10];
shell.printfln(F("Analog sensors:"));
for (const auto & sensor : analogsensor_.sensors()) {
switch (sensor.type()) {
case AnalogSensor::AnalogType::ADC:
shell.printfln(F(" %s: %s%s %s%s (Type: ADC, Factor: %s, Offset: %d)"),
sensor.name().c_str(),
COLOR_BRIGHT_GREEN,
Helpers::render_value(s, sensor.value(), 2),
EMSdevice::uom_to_string(sensor.uom()).c_str(),
COLOR_RESET,
Helpers::render_value(s2, sensor.factor(), 4),
sensor.offset());
break;
default:
// case AnalogSensor::AnalogType::DIGITAL_IN:
// case AnalogSensor::AnalogType::COUNTER:
shell.printfln(F(" %s: %s%d%s (Type: %s)"),
sensor.name().c_str(),
COLOR_BRIGHT_GREEN,
(uint16_t)sensor.value(), // as int
COLOR_RESET,
sensor.type() == AnalogSensor::AnalogType::COUNTER ? "Counter" : "Digital in");
break;
}
}
shell.println();
}
}
// MQTT publish everything, immediately
void EMSESP::publish_all(bool force) {
if (force) {
publish_all_idx_ = 1;
reset_mqtt_ha();
return;
}
if (Mqtt::connected()) {
publish_device_values(EMSdevice::DeviceType::BOILER);
publish_device_values(EMSdevice::DeviceType::THERMOSTAT);
publish_device_values(EMSdevice::DeviceType::SOLAR);
publish_device_values(EMSdevice::DeviceType::MIXER);
publish_other_values(); // switch and heat pump
publish_sensor_values(true); // includes dallas and analog sensors
system_.send_heartbeat();
}
}
// on command "publish HA" loop and wait between devices for publishing all sensors
void EMSESP::publish_all_loop() {
if (!Mqtt::connected() || !publish_all_idx_) {
return;
}
// wait for free queue before sending next message, HA-messages are also queued
if (!Mqtt::is_empty()) {
return;
}
switch (publish_all_idx_++) {
case 1:
publish_device_values(EMSdevice::DeviceType::BOILER);
break;
case 2:
publish_device_values(EMSdevice::DeviceType::THERMOSTAT);
break;
case 3:
publish_device_values(EMSdevice::DeviceType::SOLAR);
break;
case 4:
publish_device_values(EMSdevice::DeviceType::MIXER);
break;
case 5:
publish_other_values(); // switch and heat pump
break;
case 6:
publish_sensor_values(true, true);
break;
case 7:
if (Mqtt::ha_enabled()) {
Mqtt::ha_status();
}
system_.send_heartbeat();
break;
default:
// all finished
publish_all_idx_ = 0;
}
}
// force HA to re-create all the devices next time they are detected
// also removes the old HA topics
void EMSESP::reset_mqtt_ha() {
if (!Mqtt::ha_enabled()) {
return;
}
for (const auto & emsdevice : emsdevices) {
emsdevice->ha_config_clear();
}
dallassensor_.reload();
analogsensor_.reload();
}
// create json doc for the devices values and add to MQTT publish queue
// this will also create the HA /config topic
// generate_values_json is called to build the device value (dv) object array
void EMSESP::publish_device_values(uint8_t device_type) {
DynamicJsonDocument doc(EMSESP_JSON_SIZE_XLARGE_DYN);
JsonObject json = doc.to<JsonObject>();
bool need_publish = false;
bool nested = (Mqtt::is_nested());
// group by device type
if (Mqtt::ha_enabled()) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_type)) {
// specially for MQTT Discovery
// we may have some RETAINED /config topics that reference fields in the data payloads that no longer exist
// remove them immediately to prevent HA from complaining
// we need to do this first before the data payload is published, and only done once!
if (emsdevice->ha_config_firstrun()) {
emsdevice->ha_config_clear();
emsdevice->ha_config_firstrun(false);
} else {
// see if we need to delete and /config topics before adding the payloads
emsdevice->mqtt_ha_entity_config_remove();
}
}
}
}
for (uint8_t tag = DeviceValueTAG::TAG_BOILER_DATA_WW; tag <= DeviceValueTAG::TAG_HS16; tag++) {
JsonObject json_hc = json;
bool nest_created = false;
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_type)) {
if (nested && !nest_created && emsdevice->has_tag(tag)) {
json_hc = doc.createNestedObject(EMSdevice::tag_to_string(tag));
nest_created = true;
}
need_publish |= emsdevice->generate_values(json_hc, tag, false, EMSdevice::OUTPUT_TARGET::MQTT);
}
}
if (need_publish && ((!nested && tag >= DeviceValueTAG::TAG_DEVICE_DATA_WW) || (tag == DeviceValueTAG::TAG_BOILER_DATA_WW))) {
Mqtt::publish(Mqtt::tag_to_topic(device_type, tag), json);
json = doc.to<JsonObject>();
need_publish = false;
}
}
if (need_publish) {
if (doc.overflowed()) {
LOG_WARNING(F("MQTT buffer overflow, please use individual topics"));
}
Mqtt::publish(Mqtt::tag_to_topic(device_type, DeviceValueTAG::TAG_NONE), json);
}
// we want to create the /config topic after the data payload to prevent HA from throwing up a warning
if (Mqtt::ha_enabled()) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_type)) {
emsdevice->mqtt_ha_entity_config_create();
}
}
}
}
// call the devices that don't need special attention
void EMSESP::publish_other_values() {
publish_device_values(EMSdevice::DeviceType::SWITCH);
publish_device_values(EMSdevice::DeviceType::HEATPUMP);
}
// publish both the dallas and analog sensor values
void EMSESP::publish_sensor_values(const bool time, const bool force) {
if (dallas_enabled()) {
if (dallassensor_.updated_values() || time || force) {
dallassensor_.publish_values(force);
}
}
if (analog_enabled()) {
if (analogsensor_.updated_values() || time || force) {
analogsensor_.publish_values(force);
}
}
}
// MQTT publish a telegram as raw data to the topic 'response'
void EMSESP::publish_response(std::shared_ptr<const Telegram> telegram) {
StaticJsonDocument<EMSESP_JSON_SIZE_SMALL> doc;
char buffer[100];
doc["src"] = Helpers::hextoa(buffer, telegram->src);
doc["dest"] = Helpers::hextoa(buffer, telegram->dest);
doc["type"] = Helpers::hextoa(buffer, telegram->type_id);
doc["offset"] = Helpers::hextoa(buffer, telegram->offset);
strlcpy(buffer, Helpers::data_to_hex(telegram->message_data, telegram->message_length).c_str(), sizeof(buffer)); // telegram is without crc
doc["data"] = buffer;
if (telegram->message_length <= 4) {
uint32_t value = 0;
for (uint8_t i = 0; i < telegram->message_length; i++) {
value = (value << 8) + telegram->message_data[i];
}
doc["value"] = value;
}
Mqtt::publish(F_(response), doc.as<JsonObject>());
}
// builds json with the detail of each value, for a specific EMS device type or the dallas sensor
bool EMSESP::get_device_value_info(JsonObject & root, const char * cmd, const int8_t id, const uint8_t devicetype) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice->device_type() == devicetype) {
return emsdevice->get_value_info(root, cmd, id);
}
}
// specific for the dallassensor
if (devicetype == DeviceType::DALLASSENSOR) {
EMSESP::dallassensor_.get_value_info(root, cmd, id);
return true;
}
// analog sensor
if (devicetype == DeviceType::ANALOGSENSOR) {
EMSESP::analogsensor_.get_value_info(root, cmd, id);
return true;
}
return false;
}
// search for recognized device_ids : Me, All, otherwise print hex value
std::string EMSESP::device_tostring(const uint8_t device_id) {
if ((device_id & 0x7F) == rxservice_.ems_bus_id()) {
return read_flash_string(F("Me"));
} else if (device_id == 0x00) {
return read_flash_string(F("All"));
} else {
char buffer[5];
return Helpers::hextoa(buffer, device_id);
}
}
// created a pretty print telegram as a text string
// e.g. Boiler(0x08) -> Me(0x0B), Version(0x02), data: 7B 06 01 00 00 00 00 00 00 04 (offset 1)
std::string EMSESP::pretty_telegram(std::shared_ptr<const Telegram> telegram) {
uint8_t src = telegram->src & 0x7F;
uint8_t dest = telegram->dest & 0x7F;
uint8_t offset = telegram->offset;
// find name for src and dest by looking up known devices
std::string src_name("");
std::string dest_name("");
std::string type_name("");
for (const auto & emsdevice : emsdevices) {
if (emsdevice) {
// get src & dest
if (emsdevice->is_device_id(src)) {
src_name = emsdevice->device_type_name();
} else if (emsdevice->is_device_id(dest)) {
dest_name = emsdevice->device_type_name();
}
// get the type name, any match will do
if (type_name.empty()) {
type_name = emsdevice->telegram_type_name(telegram);
}
}
}
// if we can't find names for the devices, use their hex values
if (src_name.empty()) {
src_name = device_tostring(src);
}
if (dest_name.empty()) {
dest_name = device_tostring(dest);
}
// check for global/common types like Version & UBADevices
if (telegram->type_id == EMSdevice::EMS_TYPE_VERSION) {
type_name = read_flash_string(F("Version"));
} else if (telegram->type_id == EMSdevice::EMS_TYPE_UBADevices) {
type_name = read_flash_string(F("UBADevices"));
}
// if we don't know the type show
if (type_name.empty()) {
type_name = read_flash_string(F("?"));
}
std::string str;
str.reserve(200);
if (telegram->operation == Telegram::Operation::RX_READ) {
str = src_name + "(" + Helpers::hextoa(src) + ") <- " + dest_name + "(" + Helpers::hextoa(dest) + "), " + type_name + "("
+ Helpers::hextoa(telegram->type_id) + "), length: " + Helpers::hextoa(telegram->message_data[0]);
} else {
str = src_name + "(" + Helpers::hextoa(src) + ") -> " + dest_name + "(" + Helpers::hextoa(dest) + "), " + type_name + "("
+ Helpers::hextoa(telegram->type_id) + "), data: " + telegram->to_string_message();
}
if (offset) {
str += " (offset " + Helpers::itoa(offset) + ")";
}
return str;
}
/*
* Type 0x07 - UBADevices - shows us the connected EMS devices
* e.g. 08 00 07 00 0B 80 00 00 00 00 00 00 00 00 00 00 00
* Junkers has 15 bytes of data
* each byte is a bitmask for which devices are active
* byte 1 = 0x08 - 0x0F, byte 2 = 0x10 - 0x17, etc...
* e.g. in example above 1st byte = x0B = b1011 so we have deviceIDs 0x08, 0x09, 0x011
* and 2nd byte = x80 = b1000 b0000 = deviceID 0x17
*/
void EMSESP::process_UBADevices(std::shared_ptr<const Telegram> telegram) {
// exit it length is incorrect (must be 13 or 15 bytes long)
if (telegram->message_length > 15) {
return;
}
// for each byte, check the bits and determine the device_id
for (uint8_t data_byte = 0; data_byte < telegram->message_length; data_byte++) {
uint8_t next_byte = telegram->message_data[data_byte];
if (next_byte) {
for (uint8_t bit = 0; bit < 8; bit++) {
if (next_byte & 0x01) {
uint8_t device_id = ((data_byte + 1) * 8) + bit;
// if we haven't already detected this device, request it's version details, unless its us (EMS-ESP)
// when the version info is received, it will automagically add the device
if ((device_id != EMSbus::ems_bus_id()) && !(EMSESP::device_exists(device_id))) {
LOG_DEBUG(F("New EMS device detected with ID 0x%02X. Requesting version information."), device_id);
send_read_request(EMSdevice::EMS_TYPE_VERSION, device_id);
}
}
next_byte = next_byte >> 1; // advance 1 bit
}
}
}
}
// process the Version telegram (type 0x02), which is a common type
// e.g. 09 0B 02 00 PP V1 V2
void EMSESP::process_version(std::shared_ptr<const Telegram> telegram) {
// check for valid telegram, just in case
if (telegram->message_length < 3) {
// for empty telegram add device with empty product, version and brand
if (!telegram->message_length) {
(void)add_device(telegram->src, 0, "00.00", 0);
}
return;
}
// check for 2nd subscriber, e.g. 18 0B 02 00 00 00 00 5E 02 01
uint8_t offset = 0;
if (telegram->message_data[0] == 0x00) {
// see if we have a 2nd subscriber
if (telegram->message_data[3] != 0x00) {
offset = 3;
} else {
return; // ignore whole telegram
}
}
// extra details from the telegram
uint8_t device_id = telegram->src; // deviceID
uint8_t product_id = telegram->message_data[offset]; // productID
// get version as XX.XX
char version[8];
snprintf(version, sizeof(version), "%02d.%02d", telegram->message_data[offset + 1], telegram->message_data[offset + 2]);
// some devices store the protocol type (HT3, Buderus) in the last byte
uint8_t brand;
if (telegram->message_length >= 10) {
brand = EMSdevice::decode_brand(telegram->message_data[9]);
} else {
brand = EMSdevice::Brand::NO_BRAND; // unknown
}
// add it - will be overwritten if device already exists
(void)add_device(device_id, product_id, version, brand);
}
// find the device object that matches the deviceID and see if it has a matching telegram type handler
// but only process if the telegram is sent to us or it's a broadcast (dest=0x00=all)
// We also check for common telgram types, like the Version(0x02)
// returns false if there are none found
bool EMSESP::process_telegram(std::shared_ptr<const Telegram> telegram) {
// if watching or reading...
if ((telegram->type_id == read_id_) && (telegram->dest == txservice_.ems_bus_id())) {
LOG_INFO(F("%s"), pretty_telegram(telegram).c_str());
if (Mqtt::send_response()) {
publish_response(telegram);
}
if (!read_next_) {
read_id_ = WATCH_ID_NONE;
}
read_next_ = false;
} else if (watch() == WATCH_ON) {
if ((watch_id_ == WATCH_ID_NONE) || (telegram->type_id == watch_id_)
|| ((watch_id_ < 0x80) && ((telegram->src == watch_id_) || (telegram->dest == watch_id_)))) {
LOG_NOTICE(F("%s"), pretty_telegram(telegram).c_str());
} else if (!trace_raw_) {
LOG_TRACE(F("%s"), pretty_telegram(telegram).c_str());
}
} else if (!trace_raw_) {
LOG_TRACE(F("%s"), pretty_telegram(telegram).c_str());
}
// only process broadcast telegrams or ones sent to us on request
// if ((telegram->dest != 0x00) && (telegram->dest != rxservice_.ems_bus_id())) {
if (telegram->operation == Telegram::Operation::RX_READ) {
// LOG_DEBUG(F("read telegram received, not processing"));
return false;
}
// check for common types, like the Version(0x02)
if (telegram->type_id == EMSdevice::EMS_TYPE_VERSION) {
process_version(telegram);
return true;
} else if (telegram->type_id == EMSdevice::EMS_TYPE_UBADevices) {
// do not flood tx-queue with version requests while waiting for km200
if (!wait_km_) {
process_UBADevices(telegram);
}
return true;
}
// match device_id and type_id
// calls the associated process function for that EMS device
// returns false if the device_id doesn't recognize it
// after the telegram has been processed, call see if there have been values changed and we need to do a MQTT publish
bool found = false;
bool knowndevice = false;
for (const auto & emsdevice : emsdevices) {
if (emsdevice->is_device_id(telegram->src) || emsdevice->is_device_id(telegram->dest)) {
knowndevice = true;
found = emsdevice->handle_telegram(telegram);
if (found && emsdevice->is_device_id(telegram->dest)) {
LOG_DEBUG(F("Process setting 0x%02X for device 0x%02X"), telegram->type_id, telegram->dest);
}
// if we correctly processed the telegram then follow up with sending it via MQTT (if enabled)
if (found && Mqtt::connected()) {
if ((mqtt_.get_publish_onchange(emsdevice->device_type()) && emsdevice->has_update())
|| (telegram->type_id == publish_id_ && telegram->dest == txservice_.ems_bus_id())) {
if (telegram->type_id == publish_id_) {
publish_id_ = 0;
}
emsdevice->has_update(false); // reset flag
if (!Mqtt::publish_single()) {
publish_device_values(emsdevice->device_type()); // publish to MQTT if we explicitly have too
}
}
}
if (wait_validate_ == telegram->type_id) {
wait_validate_ = 0;
}
if (!found && emsdevice->is_device_id(telegram->src) && telegram->message_length > 0) {
emsdevice->add_handlers_ignored(telegram->type_id);
}
break;
}
}
if (!found) {
LOG_DEBUG(F("No telegram type handler found for ID 0x%02X (src 0x%02X)"), telegram->type_id, telegram->src);
if (watch() == WATCH_UNKNOWN) {
LOG_NOTICE(F("%s"), pretty_telegram(telegram).c_str());
}
if (!wait_km_ && !knowndevice && (telegram->src != EMSbus::ems_bus_id()) && (telegram->message_length > 0)) {
send_read_request(EMSdevice::EMS_TYPE_VERSION, telegram->src);
}
}
return found;
}
// return true if we have this device already registered
bool EMSESP::device_exists(const uint8_t device_id) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && emsdevice->is_device_id(device_id)) {
return true;
}
}
return false; // not found
}
// for each associated EMS device go and get its system information
void EMSESP::show_devices(uuid::console::Shell & shell) {
if (emsdevices.empty()) {
shell.printfln(F("No EMS devices detected. Try using 'scan devices' from the ems menu."));
shell.println();
return;
}
shell.printfln(F("These EMS devices are currently active:"));
shell.println();
// count the number of thermostats
uint8_t num_thermostats = 0;
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == DeviceType::THERMOSTAT)) {
num_thermostats++;
}
}
// for all device objects from emsdevice.h (UNKNOWN, SYSTEM, BOILER, THERMOSTAT, MIXER, SOLAR, HEATPUMP, GATEWAY, SWITCH, CONTROLLER, CONNECT)
// so we keep a consistent order
for (const auto & device_class : EMSFactory::device_handlers()) {
for (const auto & emsdevice : emsdevices) {
if (emsdevice && (emsdevice->device_type() == device_class.first)) {
shell.printf(F("%s: %s"), emsdevice->device_type_name().c_str(), emsdevice->to_string().c_str());
shell.println();
emsdevice->show_telegram_handlers(shell);
#if defined(EMSESP_DEBUG)
emsdevice->show_mqtt_handlers(shell);
#endif
shell.println();
}
}
}
}
// add a new or update existing EMS device to our list of active EMS devices
// if its not in our database, we don't add it
bool EMSESP::add_device(const uint8_t device_id, const uint8_t product_id, const char * version, const uint8_t brand) {
// don't add ourselves!
if (device_id == rxservice_.ems_bus_id()) {
return false;
}
// first check to see if we already have it, if so update the record
for (const auto & emsdevice : emsdevices) {
if (emsdevice && emsdevice->is_device_id(device_id)) {
if (product_id == 0) { // update only with valid product_id
return true;
}
LOG_DEBUG(F("Updating details for already active deviceID 0x%02X"), device_id);
emsdevice->product_id(product_id);
emsdevice->version(version);
// only set brand if it doesn't already exist
if (emsdevice->brand() == EMSdevice::Brand::NO_BRAND) {
emsdevice->brand(brand);
}
// find the name and flags in our database
for (const auto & device : device_library_) {
if (device.product_id == product_id && device.device_type == emsdevice->device_type()) {
emsdevice->name(std::move(read_flash_string(device.name)));
emsdevice->add_flags(device.flags);
}
}
return true; // finish up
}
}
// look up the rest of the details using the product_id and create the new device object
Device_record * device_p = nullptr;
for (auto & device : device_library_) {
if (device.product_id == product_id) {
// sometimes boilers share the same productID as controllers
// so only add boilers if the device_id is 0x08 or 0x60 or 0x70.., which is fixed for EMS
if (device.device_type == DeviceType::BOILER) {
if (device_id == EMSdevice::EMS_DEVICE_ID_BOILER || device_id == EMSdevice::EMS_DEVICE_ID_AM200
|| (device_id >= EMSdevice::EMS_DEVICE_ID_BOILER_1 && device_id <= EMSdevice::EMS_DEVICE_ID_BOILER_F)) {
device_p = &device;
break;
}
} else {
// it's not a boiler, but we have a match
device_p = &device;
break;
}
}
}
// if we don't recognize the productID report it and add as a generic device
if (device_p == nullptr) {
LOG_NOTICE(F("Unrecognized EMS device (deviceID 0x%02X, productID %d). Please report on GitHub."), device_id, product_id);
std::string name("unknown");
emsdevices.push_back(
EMSFactory::add(DeviceType::GENERIC, device_id, product_id, version, name, DeviceFlags::EMS_DEVICE_FLAG_NONE, EMSdevice::Brand::NO_BRAND));
return false; // not found
}
auto name = read_flash_string(device_p->name);
auto device_type = device_p->device_type;
auto flags = device_p->flags;
// empty reply to version, read a generic device from database
if (product_id == 0) {
// check for known device IDs
if (device_id == 0x40) {
// see: https://github.com/emsesp/EMS-ESP32/issues/103#issuecomment-911717342
name = "rf room temperature sensor"; // generic
} else if (device_id == 0x17) {
name = "generic thermostat";
device_type = DeviceType::THERMOSTAT;
flags = DeviceFlags::EMS_DEVICE_FLAG_RC10 | DeviceFlags::EMS_DEVICE_FLAG_NO_WRITE;
} else if (device_id == 0x04) {
name = "RS232";