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xsns_62_esp32_mi.ino
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/*
xsns_62_esp32_mi.ino - MI-BLE-sensors via ESP32 support for Tasmota
enabled by ESP32 && !USE_BLE_ESP32
if (ESP32 && USE_BLE_ESP32) then xsns_62_esp32_mi_ble.ino is used
Copyright (C) 2021 Christian Baars 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/>.
--------------------------------------------------------------------------------------------
Version yyyymmdd Action Description
--------------------------------------------------------------------------------------------
0.9.5.6 20221006 changed - remove old HASS code, allow adding unknown sensors, prepare YLAI003
-------
0.9.5.5 20220326 changed - refactored connection task for asynchronous op, add response option,
fixed MI32Key command
-------
0.9.5.4 20220325 changed - add Berry adv_watch and adv_block to BLE class
-------
0.9.5.3 20220315 changed - reworked Berry part, active scanning and holding active connections possible, new format of advertisement buffer
-------
0.9.5.1 20220209 changed - rename YEERC to YLYK01, add dimmer YLKG08 (incl. YLKG07), change button report scheme
-------
0.9.5.0 20211016 changed - major rewrite, added mi32cfg (file and command), Homekit-Bridge,
extended GUI,
removed BLOCK, PERIOD, TIME, UNIT, BATTERY and PAGE -> replaced via Berry-Support
-------
0.9.1.7 20201116 changed - small bugfixes, add BLOCK and OPTION command, send BLE scan via MQTT
-------
0.9.1.0 20200712 changed - add lights and YLYK01, add pure passive mode with decryption,
lots of refactoring
-------
0.9.0.1 20200706 changed - adapt to new NimBLE-API, tweak scan process
-------
0.9.0.0 20200413 started - initial development by Christian Baars
forked - from arendst/tasmota - https://github.com/arendst/Tasmota
*/
#ifndef USE_BLE_ESP32
#ifdef ESP32 // ESP32 only. Use define USE_HM10 for ESP8266 support
#if defined CONFIG_IDF_TARGET_ESP32 || defined CONFIG_IDF_TARGET_ESP32C3 || defined CONFIG_IDF_TARGET_ESP32C2 || defined CONFIG_IDF_TARGET_ESP32C6 || defined CONFIG_IDF_TARGET_ESP32S3
#ifdef USE_MI_ESP32
#ifdef USE_ENERGY_SENSOR
// #define USE_MI_ESP32_ENERGY //prepare for some GUI extensions
#endif
#define XSNS_62 62
#include <NimBLEDevice.h>
// undefine "trash" from the NimBLE stack, that collides with Tasmotas enum
#undef LOG_LEVEL_DEBUG
#undef LOG_LEVEL_NONE
#undef LOG_LEVEL_ERROR
#undef LOG_LEVEL_INFO
#undef LOG_LEVEL_DEBUG
#undef LOG_LEVEL_DEBUG_MORE
#include <vector>
#include "freertos/ringbuf.h"
#include <t_bearssl.h>
#include "include/xsns_62_esp32_mi.h"
void MI32scanEndedCB(NimBLEScanResults results);
void MI32notifyCB(NimBLERemoteCharacteristic* pRemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify);
void MI32AddKey(mi_bindKey_t keyMAC);
std::vector<mi_sensor_t> MIBLEsensors;
RingbufHandle_t BLERingBufferQueue = nullptr;
static BLEScan* MI32Scan;
/*********************************************************************************************\
* Callback Classes
\*********************************************************************************************/
class MI32SensorCallback : public NimBLEClientCallbacks {
void onConnect(NimBLEClient* pclient) {
// AddLog(LOG_LEVEL_DEBUG,PSTR("connected %s"), MI32getDeviceName(MI32.conCtx->slot));
MI32.infoMsg = MI32_DID_CONNECT;
MI32.mode.willConnect = 0;
MI32.mode.connected = 1;
pclient->updateConnParams(8,11,0,1000);
}
void onDisconnect(NimBLEClient* pclient) {
MI32.mode.connected = 0;
MI32.infoMsg = MI32_DID_DISCONNECT;
MI32.conCtx->error = MI32_CONN_DID_DISCCONNECT;
MI32.mode.triggerBerryConnCB = 1; //mainly for unexpected or requested disconnects
//AddLog(LOG_LEVEL_DEBUG,PSTR("disconnected"));
}
};
class MI32AdvCallbacks: public NimBLEScanCallbacks {
void IRAM_ATTR onResult(NimBLEAdvertisedDevice* advertisedDevice) {
static bool _mutex = false;
if(_mutex) return;
_mutex = true;
int RSSI = advertisedDevice->getRSSI();
uint8_t addr[6];
memcpy(addr,advertisedDevice->getAddress().getNative(),6);
MI32_ReverseMAC(addr);
size_t ServiceDataLength = 0;
if(MI32.beAdvCB != nullptr && MI32.mode.triggerBerryAdvCB == 0){
berryAdvPacket_t *_packet = (berryAdvPacket_t *)MI32.beAdvBuf;
memcpy(_packet->MAC,addr,6);
_packet->addressType = advertisedDevice->getAddressType();
_packet->RSSI = (uint8_t)RSSI;
uint8_t *_payload = advertisedDevice->getPayload();
_packet->length = advertisedDevice->getPayloadLength();
memcpy(_packet->payload,_payload, _packet->length);
MI32.mode.triggerBerryAdvCB = 1;
}
if (advertisedDevice->getServiceDataCount() == 0) {
_mutex = false;
return;
}
uint16_t UUID = advertisedDevice->getServiceDataUUID(0).getNative()->u16.value;
ServiceDataLength = advertisedDevice->getServiceData(0).length();
if(UUID==0xfe95) {
MI32ParseResponse((char*)advertisedDevice->getServiceData(0).data(),ServiceDataLength, addr, RSSI);
}
else if(UUID==0xfcd2) {
std::string optionalName = advertisedDevice->getName();
MI32parseBTHomePacket((char*)advertisedDevice->getServiceData(0).data(),ServiceDataLength, addr, RSSI, optionalName.c_str());
}
else if(UUID==0xfdcd) { // deprecated
MI32parseCGD1Packet((char*)advertisedDevice->getServiceData(0).data(),ServiceDataLength, addr, RSSI);
}
else if(UUID==0x181a) { //ATC and PVVX - deprecated, change FW setting of these devices to BTHome V2
MI32ParseATCPacket((char*)advertisedDevice->getServiceData(0).data(),ServiceDataLength, addr, RSSI);
}
_mutex = false;
};
};
class MI32ServerCallbacks: public NimBLEServerCallbacks {
void onConnect(NimBLEServer* pServer, NimBLEConnInfo& connInfo) {
struct{
BLERingBufferItem_t header;
uint8_t buffer[6];
} item;
item.header.length = 6;
item.header.type = BLE_OP_ON_CONNECT;
memcpy(item.buffer,connInfo.getAddress().getNative(),6);
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t) + 6 , pdMS_TO_TICKS(1));
MI32.infoMsg = MI32_SERV_CLIENT_CONNECTED;
};
void onDisconnect(NimBLEServer* pServer, NimBLEConnInfo& connInfo, int reason) {
struct{
BLERingBufferItem_t header;
} item;
item.header.length = 0;
item.header.type = BLE_OP_ON_DISCONNECT;
memset(MI32.conCtx->MAC,0,6);
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t), pdMS_TO_TICKS(1));
MI32.infoMsg = MI32_SERV_CLIENT_DISCONNECTED;
NimBLEDevice::startAdvertising();
};
};
class MI32CharacteristicCallbacks: public NimBLECharacteristicCallbacks {
void onRead(NimBLECharacteristic* pCharacteristic, NimBLEConnInfo& connInfo){
struct{
BLERingBufferItem_t header;
} item;
item.header.length = 0;
item.header.type = BLE_OP_ON_READ;
item.header.returnCharUUID = pCharacteristic->getUUID().getNative()->u16.value;
item.header.handle = pCharacteristic->getHandle();
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t), pdMS_TO_TICKS(1));
};
void onWrite(NimBLECharacteristic* pCharacteristic, NimBLEConnInfo& connInfo) {
struct{
BLERingBufferItem_t header;
uint8_t buffer[255];
} item;
item.header.length = pCharacteristic->getDataLength();;
item.header.type = BLE_OP_ON_WRITE;
item.header.returnCharUUID = pCharacteristic->getUUID().getNative()->u16.value;
item.header.handle = pCharacteristic->getHandle();
memcpy(item.buffer,pCharacteristic->getValue(),pCharacteristic->getDataLength());
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t) + item.header.length , pdMS_TO_TICKS(1));
};
/** The status returned in status is defined in NimBLECharacteristic.h.
* The value returned in code is the NimBLE host return code.
*/
void onStatus(NimBLECharacteristic* pCharacteristic, int code) {
struct{
BLERingBufferItem_t header;
uint8_t buffer[4];
} item;
item.header.length = 4;
item.header.type = BLE_OP_ON_STATUS;
item.header.returnCharUUID = pCharacteristic->getUUID().getNative()->u16.value;
item.header.handle = pCharacteristic->getHandle();
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t) + 4, pdMS_TO_TICKS(1));
};
void onSubscribe(NimBLECharacteristic* pCharacteristic, NimBLEConnInfo& connInfo, uint16_t subValue) {
struct{
BLERingBufferItem_t header;
} item;
item.header.length = 0;
item.header.type = BLE_OP_ON_UNSUBSCRIBE + subValue;;
item.header.returnCharUUID = pCharacteristic->getUUID().getNative()->u16.value;
item.header.handle = pCharacteristic->getHandle();
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t), pdMS_TO_TICKS(1));
};
};
static MI32AdvCallbacks MI32ScanCallbacks;
static MI32SensorCallback MI32SensorCB;
static MI32CharacteristicCallbacks MI32ChrCallback;
static NimBLEClient* MI32Client;
/*********************************************************************************************\
* BLE callback functions
\*********************************************************************************************/
void MI32scanEndedCB(NimBLEScanResults results){
MI32.infoMsg = MI32_SCAN_ENDED;
MI32.mode.runningScan = 0;
}
void MI32notifyCB(NimBLERemoteCharacteristic* pRemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify){
if(isNotify){
struct{
BLERingBufferItem_t header;
uint8_t buffer[255];
} item;
item.header.length = length;
// item.header.type = 103; does not matter for now
memcpy(item.buffer,pData,length);
item.header.returnCharUUID = pRemoteCharacteristic->getUUID().getNative()->u16.value;
item.header.handle = pRemoteCharacteristic->getHandle();
xRingbufferSend(BLERingBufferQueue, (const void*)&item, sizeof(BLERingBufferItem_t) + length , pdMS_TO_TICKS(5));
MI32.mode.readingDone = 1;
MI32.infoMsg = MI32_GOT_NOTIFICATION;
return;
}
}
/*********************************************************************************************\
* Helper functions
\*********************************************************************************************/
/**
* @brief Remove all colons from null terminated char array
*
* @param _string Typically representing a MAC-address like AA:BB:CC:DD:EE:FF
*/
void MI32stripColon(char* _string){
uint32_t _length = strlen(_string);
uint32_t _index = 0;
while (_index < _length) {
char c = _string[_index];
if(c==':'){
memmove(_string+_index,_string+_index+1,_length-_index);
}
_index++;
}
_string[_index] = 0;
}
/**
* @brief Convert string that represents a hexadecimal number to a byte array
*
* @param _string input string in format: AABBCCDDEEFF or AA:BB:CC:DD:EE:FF, case insensitive
* @param _mac target byte array must match the correct size (i.e. AA:BB -> uint8_t bytes[2])
*/
void MI32HexStringToBytes(char* _string, uint8_t* _byteArray) {
MI32stripColon(_string);
UpperCase(_string,_string);
uint32_t index = 0;
uint32_t _end = strlen(_string);
memset(_byteArray,0,_end/2);
while (index < _end) {
char c = _string[index];
uint8_t value = 0;
if(c >= '0' && c <= '9')
value = (c - '0');
else if (c >= 'A' && c <= 'F')
value = (10 + (c - 'A'));
_byteArray[(index/2)] += value << (((index + 1) % 2) * 4);
index++;
}
}
/**
* @brief Reverse an array of 6 bytes
*
* @param _mac a byte array of size 6 (typically representing a MAC address)
*/
void MI32_ReverseMAC(uint8_t _mac[]){
uint8_t _reversedMAC[6];
for (uint8_t i=0; i<6; i++){
_reversedMAC[5-i] = _mac[i];
}
memcpy(_mac,_reversedMAC, sizeof(_reversedMAC));
}
void MI32AddKey(mi_bindKey_t keyMAC){
bool unknownMAC = true;
uint32_t _slot = 0;
for(auto &_sensor : MIBLEsensors){
if(memcmp(keyMAC.MAC,_sensor.MAC,sizeof(keyMAC.MAC))==0){
_sensor.key = new uint8_t[16];
memcpy(_sensor.key,keyMAC.key,16);
unknownMAC=false;
_sensor.status.hasWrongKey = 0;
AddLog(LOG_LEVEL_INFO,PSTR("add key to %s"),MI32getDeviceName(_slot));
}
_slot++;
}
if(unknownMAC){
AddLog(LOG_LEVEL_ERROR,PSTR("M32: unknown MAC"));
}
}
/**
* @brief Decrypts payload in place
*
* @param _buf - pointer to the buffer at position of PID
* @param _bufSize - buffersize (last position is two bytes behind last byte of TAG)
* @param _payload - target buffer
* @param _slot - sensor slot in the global vector
* @return int - error code, 0 for success
*/
int MI32_decryptPacket(char * _buf, uint16_t _bufSize, uint8_t * _payload, uint32 _slot){
// int32_t start = _getCycleCount();
mi_beacon_t *_beacon = (mi_beacon_t *)_buf;
uint8_t nonce[13]; //v3:13, v5:12
uint32_t nonceLen = 12; // most devices are v5
uint8_t tag[4] = {0};
const unsigned char authData[1] = {0x11};
size_t dataLen = _bufSize - 11 ; // _bufsize - frame - type - frame.counter - MAC
if(MIBLEsensors[_slot].key == nullptr){
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: No Key found !!"));
return -2;
}
uint32_t _version = (uint32_t)_beacon->frame.version;
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: encrypted msg from %s with version:%u"),MI32getDeviceName(_slot),_version);
if(_version == 5){
if(_beacon->frame.includesMAC){
for (uint32_t i = 0; i<6; i++){
nonce[i] = _beacon->MAC[i];
}
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: has MAC"));
memcpy(_payload,(uint8_t*)&_beacon->capability, dataLen); //special packet
dataLen -= 7;
}
else{
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: has no MAC"));
for (uint32_t i = 0; i<6; i++){
nonce[i] = MIBLEsensors[_slot].MAC[5-i];
}
dataLen = _bufSize -5 ;
memcpy(_payload,_beacon->MAC, dataLen); //special packet
dataLen -= 7;
// AddLogBuffer(LOG_LEVEL_DEBUG,(uint8_t*) _payload, dataLen);
}
// nonce: device MAC, device type, frame cnt, ext. cnt
memcpy((uint8_t*)&nonce+6,(uint8_t*)&_beacon->productID,2);
nonce[8] = _beacon->counter;
memcpy((uint8_t*)&nonce+9,(uint8_t*)&_payload[dataLen],3);
// memcpy((uint8_t*)&tag,(uint8_t*)&_payload[dataLen-4],4);
memcpy((uint8_t*)&tag,(uint8_t*)&_buf[_bufSize-4],4);
}
else if(_version == 3){
// nonce: frame_ctrl, device type, ext. cnt, frame cnt, device MAC(only first 5 bytes)
memcpy(_payload,(uint8_t*)&_beacon->capability, dataLen); //special packet
nonceLen = 13;
memcpy((uint8_t*)&nonce,(uint8_t*)&_beacon->frame,2);
memcpy((uint8_t*)&nonce+2,(uint8_t*)&_beacon->productID,2);
nonce[4] = _beacon->counter;
memcpy((uint8_t*)&nonce+5,(uint8_t*)&_buf[_bufSize-4],3);
for (uint32_t i = 0; i<5; i++){
nonce[i+8] = _beacon->MAC[i];
}
// tag[0] = _buf[_bufSize-1]; // it is unclear, if this value is a checksum
dataLen -= 4;
}
else{
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: unexpected decryption version:%u"),_version); // should never happen
}
br_aes_small_ctrcbc_keys keyCtx;
br_aes_small_ctrcbc_init(&keyCtx, MIBLEsensors[_slot].key, 16);
br_ccm_context ctx;
br_ccm_init(&ctx, &keyCtx.vtable);
br_ccm_reset(&ctx, nonce, nonceLen, sizeof(authData), dataLen, sizeof(tag));
br_ccm_aad_inject(&ctx, authData, sizeof(authData));
br_ccm_flip(&ctx);
br_ccm_run(&ctx, 0, _payload, dataLen);
if(br_ccm_check_tag(&ctx, &tag)) return 0;
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: decrypted in %.2f mSec"),enctime);
// AddLogBuffer(LOG_LEVEL_DEBUG,(uint8_t*) _payload, dataLen);
if(_version == 3 && _payload[1] == 0x10) return 0; // no known way to really verify decryption, but 0x10 is expected here for button events
return -1; // wrong key ... maybe corrupt data packet too
}
/*********************************************************************************************\
* common functions
\*********************************************************************************************/
/**
* @brief Return the slot number of a known sensor or return create new sensor slot
*
* @param _MAC BLE address of the sensor
* @param _type Type number of the sensor
* @return uint32_t Known or new slot in the sensors-vector
*/
uint32_t MIBLEgetSensorSlot(uint8_t * _MAC, uint16_t _type, uint8_t counter){
DEBUG_SENSOR_LOG(PSTR("%s: will test ID-type: %x"),D_CMND_MI32, _type);
uint16_t _pid = _type; // save for unknown types
bool _success = false;
for (uint32_t i=0;i<MI32_TYPES;i++){ // i < sizeof(kMI32DeviceID) gives compiler warning
if(_type == kMI32DeviceID[i]){
DEBUG_SENSOR_LOG(PSTR("M32: ID is type %u"), i);
_type = i+1;
_success = true;
}
}
if(!_success) _type = UNKNOWN_MI;
DEBUG_SENSOR_LOG(PSTR("%s: vector size %u"),D_CMND_MI32, MIBLEsensors.size());
for(uint32_t i=0; i<MIBLEsensors.size(); i++){
if(memcmp(_MAC,MIBLEsensors[i].MAC,6)==0){
DEBUG_SENSOR_LOG(PSTR("%s: known sensor at slot: %u"),D_CMND_MI32, i);
// AddLog(LOG_LEVEL_DEBUG,PSTR("Counters: %x %x"),MIBLEsensors[i].lastCnt, counter);
if(MIBLEsensors[i].lastCnt==counter) {
// AddLog(LOG_LEVEL_DEBUG,PSTR("Old packet"));
return 0xff; // packet received before, stop here
}
return i;
}
DEBUG_SENSOR_LOG(PSTR("%s: i: %x %x %x %x %x %x"),D_CMND_MI32, MIBLEsensors[i].MAC[5], MIBLEsensors[i].MAC[4],MIBLEsensors[i].MAC[3],MIBLEsensors[i].MAC[2],MIBLEsensors[i].MAC[1],MIBLEsensors[i].MAC[0]);
DEBUG_SENSOR_LOG(PSTR("%s: n: %x %x %x %x %x %x"),D_CMND_MI32, _MAC[5], _MAC[4], _MAC[3],_MAC[2],_MAC[1],_MAC[0]);
}
if(MI32.mode.didGetConfig){
DEBUG_SENSOR_LOG(PSTR("M32: ignore new sensor, because of loaded config"));
return 0xff; //discard the data
}
DEBUG_SENSOR_LOG(PSTR("%s: found new sensor"),D_CMND_MI32);
mi_sensor_t _newSensor;
memcpy(_newSensor.MAC,_MAC, 6);
_newSensor.PID = _pid;
_newSensor.type = _type;
_newSensor.eventType.raw = 0;
_newSensor.feature.raw = 0;
_newSensor.status.raw = 0;
_newSensor.temp = NAN;
_newSensor.temp_history = (uint8_t*) calloc(24,1);
_newSensor.bat=0x00;
_newSensor.RSSI=0;
_newSensor.lux = 0x00ffffff;
_newSensor.lux_history = (uint8_t*) calloc(24,1);
_newSensor.key = nullptr;
switch (_type)
{
case UNKNOWN_MI:
_newSensor.hum_history = (uint8_t*) calloc(24,1);
break;
case FLORA:
_newSensor.moisture =0xff;
_newSensor.fertility =0xffff;
_newSensor.firmware[0]='\0';
_newSensor.feature.temp=1;
_newSensor.feature.moist=1;
_newSensor.feature.fert=1;
_newSensor.feature.lux=1;
_newSensor.feature.bat=1;
break;
case NLIGHT:
_newSensor.events=0x00;
_newSensor.feature.motion=1;
_newSensor.feature.NMT=1;
_newSensor.NMT=0;
break;
case MJYD2S:
_newSensor.NMT=0;
_newSensor.events=0x00;
_newSensor.feature.motion=1;
_newSensor.feature.NMT=1;
_newSensor.feature.lux=1;
_newSensor.feature.bat=1;
_newSensor.NMT=0;
break;
case YLYK01: case YLKG08: case YLAI003:
_newSensor.feature.Btn = 1;
_newSensor.Btn = 99;
if(_type == YLKG08){
_newSensor.feature.knob = 1;
_newSensor.dimmer = 0;
}
break;
case MCCGQ02:
_newSensor.events=0x00;
_newSensor.feature.bat=1;
_newSensor.feature.door=1;
_newSensor.door = 255;
break;
case SJWS01L:
_newSensor.feature.leak=1;
_newSensor.feature.bat=1;
_newSensor.feature.Btn=1;
_newSensor.Btn=99;
break;
default:
_newSensor.hum=NAN;
_newSensor.hum_history = (uint8_t*) calloc(24,1);
_newSensor.feature.temp=1;
_newSensor.feature.hum=1;
_newSensor.feature.tempHum=1;
_newSensor.feature.bat=1;
break;
}
MIBLEsensors.push_back(_newSensor);
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: new %s at slot: %u"),MI32getDeviceName(MIBLEsensors.size()-1),MIBLEsensors.size()-1);
MI32.mode.shallShowStatusInfo = 1;
return MIBLEsensors.size()-1;
};
/**
* @brief trigger real-time message for motion or RC
*
*/
void MI32triggerTele(void){
MI32.mode.triggeredTele = 1;
MqttPublishTeleperiodSensor();
}
/**
* @brief Is called after every finding of new BLE sensor
*
*/
void MI32StatusInfo() {
MI32.mode.shallShowStatusInfo = 0;
Response_P(PSTR("{\"M32\":{\"found\":%u}}"), MIBLEsensors.size());
XdrvRulesProcess(0);
}
#ifdef USE_MI_EXT_GUI
/**
* @brief Saves a sensor value mapped to the graph range of 0-20 pixel, this function automatically reads the actual hour from system time
*
* @param history - pointer to uint8_t[23]
* @param value - value as float, this
* @param type - internal type. for BLE: 0 - temperature, 1 - humidity, 2 - illuminance, for internal sensors: 100 - wattage
*/
void MI32addHistory(uint8_t *history, float value, uint32_t type){
uint32_t _hour = (LocalTime()%SECS_PER_DAY)/SECS_PER_HOUR;
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: history hour: %u"),_hour);
switch(type){
case 0: //temperature
history[_hour] = ((((value + 5.0f)/4) + 1) + 0b10000000); //temp
break;
case 1: //humidity
history[_hour] = (((value/5.0f) + 1) + 0b10000000) ; //hum
break;
case 2: //light
if(value>100.0f) value=100.0f; //clamp it for now
history[_hour] = (((value/5.0f) + 1) + 0b10000000); //lux
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: history lux: %u in hour:%u"),history[_hour], _hour);
break;
#ifdef USE_MI_ESP32_ENERGY
case 100: // energy
if(value == 0.0f) value = 1.0f;
uint8_t _watt = ((MI32ln(value)*2) + 0b10000000); //watt
history[_hour] = _watt;
// AddLog(LOG_LEVEL_DEBUG,PSTR("M32: history energy: %u for value:%u"),history[_hour], value); //still playing with the mapping
break;
#endif //USE_MI_ESP32_ENERGY
}
}
/**
* @brief Returns a value betwenn 0-21 for use as a data point in the history graph of the extended web UI
*
* @param history - pointer to uint8_t[23]
* @param hour - hour of datapoint
* @return uint8_t - value for the y-axis, should be between 0-21
*/
uint8_t MI32fetchHistory(uint8_t *history, uint32_t hour){
if(hour>23) {
return 0;} //should never happen
if(bitRead(history[hour],7) == 0) {
return 0; //invalidated data
}
return (history[hour]) - 0b10000000;
}
/**
* @brief Invalidates the history data of the following hour by setting MSB to 0, should be called at FUNC_JSON_APPEND
*
*/
void Mi32invalidateOldHistory(){
uint32_t _hour = (LocalTime()%SECS_PER_DAY)/SECS_PER_HOUR;
static uint32_t _lastInvalidatedHour = 99;
if (_lastInvalidatedHour == _hour){
return;
}
uint32_t _nextHour = (_hour>22)?0:_hour+1;
for(auto _sensor:MIBLEsensors){
if(_sensor.feature.temp == 1){
bitClear(_sensor.temp_history[_nextHour],7);
}
if(_sensor.feature.hum == 1){
bitClear(_sensor.hum_history[_nextHour],7);
}
if(_sensor.feature.lux == 1){
bitClear(_sensor.lux_history[_nextHour],7);
}
}
_lastInvalidatedHour = _hour;
}
#endif //USE_MI_EXT_GUI
/*********************************************************************************************\
* init NimBLE
\*********************************************************************************************/
void MI32PreInit(void) {
MI32.mode.init = false;
//test section for options
MI32.option.allwaysAggregate = 1;
MI32.option.noSummary = 0;
MI32.option.minimalSummary = 0;
MI32.option.directBridgeMode = 0;
MI32.option.ignoreBogusBattery = 1; // from advertisements
MI32loadCfg();
if(MIBLEsensors.size()>0){
MI32.mode.didGetConfig = 1;
}
MI32.beAdvCB = nullptr;
AddLog(LOG_LEVEL_INFO,PSTR("M32: pre-init"));
}
void MI32Init(void) {
if (MI32.mode.init) { return; }
if (TasmotaGlobal.global_state.wifi_down && TasmotaGlobal.global_state.eth_down) {
if (!(WIFI_MANAGER == Wifi.config_type || WIFI_MANAGER_RESET_ONLY == Wifi.config_type)) return;
}
if (!TasmotaGlobal.global_state.wifi_down) {
TasmotaGlobal.wifi_stay_asleep = true;
if (WiFi.getSleep() == false) {
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: Put WiFi modem in sleep mode"));
WiFi.setSleep(true); // Sleep
}
}
if (!MI32.mode.init) {
// NimBLEDevice::setScanFilterMode(1); //CONFIG_BTDM_SCAN_DUPL_TYPE_DATA
// NimBLEDevice::setScanDuplicateCacheSize(40); // will not be perfect for every situation (few vs many BLE devices nearby)
const std::string name(TasmotaGlobal.hostname);
NimBLEDevice::init(name);
AddLog(LOG_LEVEL_INFO,PSTR("M32: Init BLE device: %s"),TasmotaGlobal.hostname);
MI32.mode.init = 1;
MI32.mode.readyForNextConnJob = 1;
MI32StartTask(MI32_TASK_SCAN); // Let's get started !!
}
#ifdef USE_MI_EXT_GUI
#ifdef USE_MI_ESP32_ENERGY
MI32.energy_history = (uint8_t*) calloc(24,1);
#endif //USE_MI_ESP32_ENERGY
#endif //USE_MI_EXT_GUI
return;
}
/*********************************************************************************************\
* Berry section - partly used by HomeKit too
\*********************************************************************************************/
extern "C" {
bool MI32checkBLEinitialization(){
return (MI32.mode.init && Settings->flag5.mi32_enable);
}
void MI32BerryLoop(){
MI32BLELoop();
}
bool MI32runBerryServer(uint16_t operation){
MI32.conCtx->operation = operation;
AddLog(LOG_LEVEL_DEBUG,PSTR("BLE: Berry server op: %d, response: %u"),MI32.conCtx->operation, MI32.conCtx->response);
if(MI32.mode.readyForNextServerJob == 0){
MI32.mode.triggerNextServerJob = 0;
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: old server job not finished yet!!"));
return false;
}
MI32.mode.triggerNextServerJob = 1;
return true;
}
bool MI32runBerryConnection(uint8_t operation, bool response, int32_t* arg1){
if(MI32.conCtx != nullptr){
if(arg1 != nullptr){
MI32.conCtx->arg1 = *arg1;
MI32.conCtx->hasArg1 = true;
AddLog(LOG_LEVEL_DEBUG,PSTR("BLE: arg1: %u"),MI32.conCtx->arg1);
}
else{
MI32.conCtx->hasArg1 = false;
}
MI32.conCtx->response = response;
if(operation > 200){
return MI32runBerryServer(operation);
}
MI32.conCtx->oneOp = (operation > 9);
MI32.conCtx->operation = operation%10;
AddLog(LOG_LEVEL_DEBUG,PSTR("BLE: Berry connection op: %d, addrType: %d, oneOp: %u, response: %u"),MI32.conCtx->operation, MI32.conCtx->addrType, MI32.conCtx->oneOp, MI32.conCtx->response);
if(MI32.conCtx->oneOp){
MI32StartConnectionTask();
}
else{
if(MI32.mode.connected){
AddLog(LOG_LEVEL_DEBUG,PSTR("BLE: continue connection job"));
MI32.mode.triggerNextConnJob = 1;
if(!MI32.mode.readyForNextConnJob){
AddLog(LOG_LEVEL_DEBUG,PSTR("BLE: old connection job not finished yet!!"));
}
}
else{
MI32StartConnectionTask(); //first job of many or unexpected disconnect
}
}
return true;
}
return false;
}
void MI32setBerryConnCB(void* function, uint8_t *buffer){
if(MI32.conCtx == nullptr){
MI32.conCtx = new MI32connectionContextBerry_t;
}
MI32.conCtx->buffer = buffer;
MI32.beConnCB = function;
AddLog(LOG_LEVEL_INFO,PSTR("BLE: Connection Ctx created"));
}
void MI32setBerryServerCB(void* function, uint8_t *buffer){
if(function == nullptr || buffer == nullptr)
{
MI32.mode.deleteServerTask = 1;
MI32.beServerCB = nullptr;
AddLog(LOG_LEVEL_INFO,PSTR("BLE: Server session stopping"));
return;
}
if(MI32.conCtx == nullptr){
MI32.conCtx = new MI32connectionContextBerry_t;
}
MI32.conCtx->buffer = buffer;
MI32.beServerCB = function;
MI32StartTask(MI32_TASK_SERV);
AddLog(LOG_LEVEL_INFO,PSTR("BLE: Server Ctx created"));
}
bool MI32setBerryCtxSvc(const char *Svc, bool discoverAttributes){
if(MI32.conCtx != nullptr){
MI32.conCtx->serviceUUID = NimBLEUUID(Svc);
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: SVC: %s"),MI32.conCtx->serviceUUID.toString().c_str());
MI32.mode.discoverAttributes = discoverAttributes;
return true;
}
return false;
}
bool MI32setBerryCtxChr(const char *Chr){
if(MI32.conCtx != nullptr){
MI32.conCtx->charUUID = NimBLEUUID(Chr);
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: CHR: %s"),MI32.conCtx->charUUID.toString().c_str());
uint16_t _uuid = MI32.conCtx->charUUID.getNative()->u16.value; //if not "notify op" -> present requested characteristic as return UUID
MI32.conCtx->returnCharUUID = _uuid;
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: return 16-bit UUID: %04x"),MI32.conCtx->returnCharUUID);
return true;
}
return false;
}
bool MI32setBerryCtxMAC(uint8_t *MAC, uint8_t type){
if(MI32.conCtx != nullptr){
memcpy(MI32.conCtx->MAC,MAC,6);
if(type<4) MI32.conCtx->addrType = type;
else MI32.conCtx->addrType = 0;
return true;
}
return false;
}
void MI32setBerryAdvCB(void* function, uint8_t *buffer){
MI32.beAdvCB = function;
MI32.beAdvBuf = buffer;
}
bool MI32addMACtoBlockList(uint8_t *MAC, uint8_t type){
NimBLEDevice::addIgnored(NimBLEAddress(MAC,type));
return NimBLEDevice::isIgnored(NimBLEAddress(MAC,type));
}
bool MI32addMACtoWatchList(uint8_t *MAC, uint8_t type){
NimBLEAddress _newAddress = NimBLEAddress(MAC,type);
if(MI32Scan==nullptr){
if(!NimBLEDevice::whiteListAdd(_newAddress)){
return false;
}
}
else{
bool _runningScan = MI32Scan->stop();
if(NimBLEDevice::whiteListAdd(_newAddress)){
MI32Scan->setFilterPolicy(BLE_HCI_SCAN_FILT_USE_WL);
if(_runningScan) MI32Scan->start(0, false);
}
else {
if(_runningScan) MI32Scan->start(0, false);
return false;
}
}
AddLog(LOG_LEVEL_DEBUG,PSTR("M32: add %s to watchlist of size: %u"),_newAddress.toString().c_str(),NimBLEDevice::getWhiteListCount());
return true;
}
void MI32setBatteryForSlot(uint32_t slot, uint8_t value){
if(slot>MIBLEsensors.size()-1) return;
if(MIBLEsensors[slot].feature.bat){
MIBLEsensors[slot].bat = value;
}
}
void MI32setHumidityForSlot(uint32_t slot, float value){
if(slot>MIBLEsensors.size()-1) return;
if(MIBLEsensors[slot].feature.hum){
MIBLEsensors[slot].hum = value;
}
}
void MI32setTemperatureForSlot(uint32_t slot, float value){
if(slot>MIBLEsensors.size()-1) return;
if(MIBLEsensors[slot].feature.temp){
MIBLEsensors[slot].temp = value;
}
}
uint32_t MI32numberOfDevices(){
return MIBLEsensors.size();
}
uint8_t * MI32getDeviceMAC(uint32_t slot){
if(slot>MIBLEsensors.size()-1) return NULL;
return MIBLEsensors[slot].MAC;
}
char * MI32getDeviceName(uint32_t slot){
if(MIBLEsensors[slot].name != nullptr){
return MIBLEsensors[slot].name;
}
static char _name[12];
if( MIBLEsensors[slot].type == UNKNOWN_MI){
snprintf_P(_name,8,PSTR("MI_%04X"),MIBLEsensors[slot].PID);
}
else{
GetTextIndexed(_name, sizeof(_name), MIBLEsensors[slot].type-1, kMI32DeviceType);
}
return _name;
}
} //extern "C"
/*********************************************************************************************\
* Config section
\*********************************************************************************************/
void MI32loadCfg(){
if (TfsFileExists("/mi32cfg")){
MIBLEsensors.reserve(10);
const size_t _buf_size = 2048;
char * _filebuf = (char*)calloc(_buf_size,1);
AddLog(LOG_LEVEL_INFO,PSTR("M32: found config file"));
if(TfsLoadFile("/mi32cfg",(uint8_t*)_filebuf,_buf_size)){
AddLog(LOG_LEVEL_INFO,PSTR("M32: %s"),_filebuf);
JsonParser parser(_filebuf);
JsonParserToken root = parser.getRoot();
if (!root) {AddLog(LOG_LEVEL_INFO,PSTR("M32: invalid root "));}
JsonParserArray arr = root.getArray();
if (!arr) {AddLog(LOG_LEVEL_INFO,PSTR("M32: invalid array object"));; }
bool _error;
int32_t _numberOfDevices;
for (auto _dev : arr) {
AddLog(LOG_LEVEL_INFO,PSTR("M32: found device in config file"));
JsonParserObject _device = _dev.getObject();
uint8_t _mac[6];
JsonParserToken _val = _device[PSTR("MAC")];
_error = true;
if (_val) {
char *_macStr = (char *)_val.getStr();
AddLog(LOG_LEVEL_INFO,PSTR("M32: found MAC: %s"), _macStr);
if(strlen(_macStr)!=12){
AddLog(LOG_LEVEL_INFO,PSTR("M32: wrong MAC length: %u"), strlen(_macStr));
break;
}
MI32HexStringToBytes(_macStr,_mac);
_val = _device[PSTR("PID")];
if(_val){
uint8_t _pid[2];
char *_pidStr = (char *)_val.getStr();
AddLog(LOG_LEVEL_INFO,PSTR("M32: found PID: %s"), _pidStr);
if(strlen(_pidStr)!=4){
AddLog(LOG_LEVEL_INFO,PSTR("M32: wrong PID length: %u"), strlen(_pidStr));
break;
}
MI32HexStringToBytes(_pidStr,_pid);
uint16_t _pid16 = _pid[0]*256 + _pid[1];
_numberOfDevices = MIBLEgetSensorSlot(_mac,_pid16,0);
_error = false;
}
}
_val = _device[PSTR("key")];
if (_val) {
char *_keyStr = (char *)_val.getStr();
if(strlen(_keyStr)>0){
if(strlen(_keyStr)==32){
uint8_t *_key = (uint8_t*) malloc(16);
MI32HexStringToBytes(_keyStr,_key);
MIBLEsensors[_numberOfDevices].key = _key;
}
else{
_error = true;
break;
}
}
}
_val = _device[PSTR("name")];
if (_val) {
char *_name = (char *)_val.getStr();
MIBLEsensors[_numberOfDevices].name = new char[strlen(_name) + 1];
strcpy(MIBLEsensors[_numberOfDevices].name, _name);
AddLog(LOG_LEVEL_INFO,PSTR("M32: found name: %s"), _name);
}
_val = _device[PSTR("feat")];
if (_val) {
MIBLEsensors[_numberOfDevices].feature.raw = _val.getUInt();
}
}
if(!_error){
AddLog(LOG_LEVEL_INFO,PSTR("M32: added %u devices from config file"), _numberOfDevices + 1);
}
}
free(_filebuf);
}
}
void MI32saveConfig(){
const size_t _buf_size = 2048;
char * _filebuf = (char*) malloc(_buf_size);
_filebuf[0] = '[';
uint32_t _pos = 1;
for(auto _sensor: MIBLEsensors){
char _MAC[13];
ToHex_P(_sensor.MAC,6,_MAC,13);
char _key[33];
_key[0] = 0;
if(_sensor.key != nullptr){
ToHex_P(_sensor.key,16,_key,33);
}
char _name_feat[64];
if(_sensor.name != nullptr){