<commit_before>#include "wled.h"

/*
 * Adalight and TPM2 handler
 */

enum class AdaState {
  Header_A,
  Header_d,
  Header_a,
  Header_CountHi,
  Header_CountLo,
  Header_CountCheck,
  Data_Red,
  Data_Green,
  Data_Blue,
  TPM2_Header_Type,
  TPM2_Header_CountHi,
  TPM2_Header_CountLo,
};

uint16_t currentBaud = 1152; //default baudrate 115200 (divided by 100)

void updateBaudRate(uint32_t rate){
  uint16_t rate100 = rate/100;
  if (rate100 == currentBaud || rate100 < 96) return;
  currentBaud = rate100;

  if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut){
    Serial.print(F("Baud is now ")); Serial.println(rate);
  }

  Serial.flush();
  Serial.begin(rate);
}
  
void handleSerial()
{
  if (pinManager.isPinAllocated(hardwareRX)) return;
  
  #ifdef WLED_ENABLE_ADALIGHT
  static auto state = AdaState::Header_A;
  static uint16_t count = 0;
  static uint16_t pixel = 0;
  static byte check = 0x00;
  static byte red   = 0x00;
  static byte green = 0x00;

  while (Serial.available() > 0)
  {
    yield();
    byte next = Serial.peek();
    switch (state) {
      case AdaState::Header_A:
        if (next == 'A') state = AdaState::Header_d;
        else if (next == 0xC9) { //TPM2 start byte
          state = AdaState::TPM2_Header_Type;
        }
        else if (next == 'I') {
          handleImprovPacket();
          return;
        } else if (next == 'v') {
          Serial.print("WLED"); Serial.write(' '); Serial.println(VERSION);
     
        } else if (next == 0xB0) {updateBaudRate( 115200);
        } else if (next == 0xB1) {updateBaudRate( 230400);
        } else if (next == 0xB2) {updateBaudRate( 460800);
        } else if (next == 0xB3) {updateBaudRate( 500000);
        } else if (next == 0xB4) {updateBaudRate( 576000);
        } else if (next == 0xB5) {updateBaudRate( 921600);
        } else if (next == 0xB6) {updateBaudRate(1000000);
        } else if (next == 0xB7) {updateBaudRate(1500000);
        
        } else if (next == 'l') { //RGB(W) LED data return as JSON array. Slow, but easy to use on the other end.
          if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut){
            uint16_t used = strip.getLengthTotal();
            Serial.write('[');
            for (uint16_t i=0; i<used; i+=1) {
              Serial.print(strip.getPixelColor(i));
              if (i != used-1) Serial.write(',');
            }
            Serial.println("]");
          }  
        } else if (next == 'L') { //RGB LED data returned as bytes in tpm2 format. Faster, and slightly less easy to use on the other end.
          if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut) {
            Serial.write(0xC9); Serial.write(0xDA);
            uint16_t used = strip.getLengthTotal();
            uint16_t len = used*3;
            Serial.write(highByte(len));
            Serial.write(lowByte(len));
            for (uint16_t i=0; i < used; i++) {
              uint32_t c = strip.getPixelColor(i);
              Serial.write(qadd8(W(c), R(c))); //R, add white channel to RGB channels as a simple RGBW -> RGB map
              Serial.write(qadd8(W(c), G(c))); //G
              Serial.write(qadd8(W(c), B(c))); //B
            }
            Serial.write(0x36); Serial.write('\n');
          }
        } else if (next == '{') { //JSON API
          bool verboseResponse = false;
          if (!requestJSONBufferLock(16)) return;
          Serial.setTimeout(100);
          DeserializationError error = deserializeJson(doc, Serial);
          if (error) {
            releaseJSONBufferLock();
            return;
          }
          verboseResponse = deserializeState(doc.as<JsonObject>());
          //only send response if TX pin is unused for other purposes
          if (verboseResponse && (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut)) {
            doc.clear();
            JsonObject state = doc.createNestedObject("state");
            serializeState(state);
            JsonObject info  = doc.createNestedObject("info");
            serializeInfo(info);

            serializeJson(doc, Serial);
            Serial.println();
          }
          releaseJSONBufferLock();
        }
        break;
      case AdaState::Header_d:
        if (next == 'd') state = AdaState::Header_a;
        else             state = AdaState::Header_A;
        break;
      case AdaState::Header_a:
        if (next == 'a') state = AdaState::Header_CountHi;
        else             state = AdaState::Header_A;
        break;
      case AdaState::Header_CountHi:
        pixel = 0;
        count = next * 0x100;
        check = next;
        state = AdaState::Header_CountLo;
        break;
      case AdaState::Header_CountLo:
        count += next + 1;
        check = check ^ next ^ 0x55;
        state = AdaState::Header_CountCheck;
        break;
      case AdaState::Header_CountCheck:
        if (check == next) state = AdaState::Data_Red;
        else               state = AdaState::Header_A;
        break;
      case AdaState::TPM2_Header_Type:
        state = AdaState::Header_A; //(unsupported) TPM2 command or invalid type
        if (next == 0xDA) state = AdaState::TPM2_Header_CountHi; //TPM2 data
        else if (next == 0xAA) Serial.write(0xAC); //TPM2 ping
        break;
      case AdaState::TPM2_Header_CountHi:
        pixel = 0;
        count = (next * 0x100) /3;
        state = AdaState::TPM2_Header_CountLo;
        break;
      case AdaState::TPM2_Header_CountLo:
        count += next /3;
        state = AdaState::Data_Red;
        break;
      case AdaState::Data_Red:
        red   = next;
        state = AdaState::Data_Green;
        break;
      case AdaState::Data_Green:
        green = next;
        state = AdaState::Data_Blue;
        break;
      case AdaState::Data_Blue:
        byte blue  = next;
        if (!realtimeOverride) setRealtimePixel(pixel++, red, green, blue, 0);
        if (--count > 0) state = AdaState::Data_Red;
        else {
          realtimeLock(realtimeTimeoutMs, REALTIME_MODE_ADALIGHT);

          if (!realtimeOverride) strip.show();
          state = AdaState::Header_A;
        }
        break;
    }
    Serial.read(); //discard the byte
  }
  #endif
}<commit_msg>Update wled_serial.cpp (#2667)<commit_after>#include "wled.h"

/*
 * Adalight and TPM2 handler
 */

enum class AdaState {
  Header_A,
  Header_d,
  Header_a,
  Header_CountHi,
  Header_CountLo,
  Header_CountCheck,
  Data_Red,
  Data_Green,
  Data_Blue,
  TPM2_Header_Type,
  TPM2_Header_CountHi,
  TPM2_Header_CountLo,
};

uint16_t currentBaud = 1152; //default baudrate 115200 (divided by 100)
bool continuousSendLED = false;
uint32_t lastUpdate = 0;

void updateBaudRate(uint32_t rate){
  uint16_t rate100 = rate/100;
  if (rate100 == currentBaud || rate100 < 96) return;
  currentBaud = rate100;

  if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut){
    Serial.print(F("Baud is now ")); Serial.println(rate);
  }

  Serial.flush();
  Serial.begin(rate);
}

// RGB LED data return as JSON array. Slow, but easy to use on the other end.
void sendJSON(){
  if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut) {
    uint16_t used = strip.getLengthTotal();
    Serial.write('[');
    for (uint16_t i=0; i<used; i++) {
      Serial.print(strip.getPixelColor(i));
      if (i != used-1) Serial.write(',');
    }
    Serial.println("]");
  }   
}

// RGB LED data returned as bytes in TPM2 format. Faster, and slightly less easy to use on the other end.
void sendBytes(){
  if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut) {
    Serial.write(0xC9); Serial.write(0xDA);
    uint16_t used = strip.getLengthTotal();
    uint16_t len = used*3;
    Serial.write(highByte(len));
    Serial.write(lowByte(len));
    for (uint16_t i=0; i < used; i++) {
      uint32_t c = strip.getPixelColor(i);
      Serial.write(qadd8(W(c), R(c))); //R, add white channel to RGB channels as a simple RGBW -> RGB map
      Serial.write(qadd8(W(c), G(c))); //G
      Serial.write(qadd8(W(c), B(c))); //B
    }
    Serial.write(0x36); Serial.write('\n');
  }  
}

void handleSerial()
{
  if (pinManager.isPinAllocated(hardwareRX)) return;
  
  #ifdef WLED_ENABLE_ADALIGHT
  static auto state = AdaState::Header_A;
  static uint16_t count = 0;
  static uint16_t pixel = 0;
  static byte check = 0x00;
  static byte red   = 0x00;
  static byte green = 0x00;

  while (Serial.available() > 0)
  {
    yield();
    byte next = Serial.peek();
    switch (state) {
      case AdaState::Header_A:
        if (next == 'A') state = AdaState::Header_d;
        else if (next == 0xC9) { //TPM2 start byte
          state = AdaState::TPM2_Header_Type;
        }
        else if (next == 'I') {
          handleImprovPacket();
          return;
        } else if (next == 'v') {
          Serial.print("WLED"); Serial.write(' '); Serial.println(VERSION);
     
        } else if (next == 0xB0) {updateBaudRate( 115200);
        } else if (next == 0xB1) {updateBaudRate( 230400);
        } else if (next == 0xB2) {updateBaudRate( 460800);
        } else if (next == 0xB3) {updateBaudRate( 500000);
        } else if (next == 0xB4) {updateBaudRate( 576000);
        } else if (next == 0xB5) {updateBaudRate( 921600);
        } else if (next == 0xB6) {updateBaudRate(1000000);
        } else if (next == 0xB7) {updateBaudRate(1500000);
               
        } else if (next == 'l') {sendJSON(); // Send LED data as JSON Array
        } else if (next == 'L') {sendBytes(); // Send LED data as TPM2 Data Packet

        } else if (next == 'o') {continuousSendLED = false; // Disable Continuous Serial Streaming  
        } else if (next == 'O') {continuousSendLED = true; // Enable Continuous Serial Streaming

        } else if (next == '{') { //JSON API
          bool verboseResponse = false;
          if (!requestJSONBufferLock(16)) return;
          Serial.setTimeout(100);
          DeserializationError error = deserializeJson(doc, Serial);
          if (error) {
            releaseJSONBufferLock();
            return;
          }
          verboseResponse = deserializeState(doc.as<JsonObject>());
          //only send response if TX pin is unused for other purposes
          if (verboseResponse && (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut)) {
            doc.clear();
            JsonObject state = doc.createNestedObject("state");
            serializeState(state);
            JsonObject info  = doc.createNestedObject("info");
            serializeInfo(info);

            serializeJson(doc, Serial);
            Serial.println();
          }
          releaseJSONBufferLock();
        }
        break;
      case AdaState::Header_d:
        if (next == 'd') state = AdaState::Header_a;
        else             state = AdaState::Header_A;
        break;
      case AdaState::Header_a:
        if (next == 'a') state = AdaState::Header_CountHi;
        else             state = AdaState::Header_A;
        break;
      case AdaState::Header_CountHi:
        pixel = 0;
        count = next * 0x100;
        check = next;
        state = AdaState::Header_CountLo;
        break;
      case AdaState::Header_CountLo:
        count += next + 1;
        check = check ^ next ^ 0x55;
        state = AdaState::Header_CountCheck;
        break;
      case AdaState::Header_CountCheck:
        if (check == next) state = AdaState::Data_Red;
        else               state = AdaState::Header_A;
        break;
      case AdaState::TPM2_Header_Type:
        state = AdaState::Header_A; //(unsupported) TPM2 command or invalid type
        if (next == 0xDA) state = AdaState::TPM2_Header_CountHi; //TPM2 data
        else if (next == 0xAA) Serial.write(0xAC); //TPM2 ping
        break;
      case AdaState::TPM2_Header_CountHi:
        pixel = 0;
        count = (next * 0x100) /3;
        state = AdaState::TPM2_Header_CountLo;
        break;
      case AdaState::TPM2_Header_CountLo:
        count += next /3;
        state = AdaState::Data_Red;
        break;
      case AdaState::Data_Red:
        red   = next;
        state = AdaState::Data_Green;
        break;
      case AdaState::Data_Green:
        green = next;
        state = AdaState::Data_Blue;
        break;
      case AdaState::Data_Blue:
        byte blue  = next;
        if (!realtimeOverride) setRealtimePixel(pixel++, red, green, blue, 0);
        if (--count > 0) state = AdaState::Data_Red;
        else {
          realtimeLock(realtimeTimeoutMs, REALTIME_MODE_ADALIGHT);

          if (!realtimeOverride) strip.show();
          state = AdaState::Header_A;
        }
        break;
    }

    // All other received bytes will disable Continuous Serial Streaming
    if (continuousSendLED && next != 'O'){
      continuousSendLED = false;
      } 
    
    Serial.read(); //discard the byte
  }
  #endif

  // If Continuous Serial Streaming is enabled, send new LED data as bytes
  if (continuousSendLED && (lastUpdate != strip.getLastShow())){
    sendBytes();
    lastUpdate = strip.getLastShow();
  }
}
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