midea.h

// -*- coding: utf-8 -*-
//
// EspHome Midea Air Conditioner header
//
// Copyright 2020-2020 uncle-yura uncle-yura@tuta.io
//
// 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 2 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, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#include "esphome.h"

using namespace esphome;
using namespace esphome::uart;
using namespace esphome::api;
using namespace esphome::sensor;
using namespace esphome::switch_;

#ifndef MIDEA_H
#define MIDEA_H

//#define DEBUG

typedef struct{
  unsigned state:8;
  unsigned mode:3;
  unsigned setpoint:5;
  unsigned temp:8;
  unsigned speed:7;
  unsigned hswing:2;
  unsigned vswing:2;
}status_buffer;

typedef struct{
 byte buffer[256];
 byte size;
 char type;
 byte status;
}serial_buffer;

namespace esphome {
    class Midea : public PollingComponent, public UARTDevice, public CustomAPIDevice {
     public:
      Midea(UARTComponent *parent, Sensor *sensor1, Switch *switch1) : UARTDevice(parent), tsensor(sensor1), pswitch(switch1) {}
    
      Sensor *tsensor {nullptr};
      Switch *pswitch {nullptr};
    
      serial_buffer transmite_queue[15];
      int queue_pointer_first = -1;
      int queue_pointer_last = -1;
      
      status_buffer status;
      
      serial_buffer receive_data = {{0},0,'A',0};
    
      void on_state(int mode, int temp, int power, int speed, int hswing, int vswing);
      void setup() override;
      void update() override;
      void loop() override;
      
     private:
      const byte header_part[10]={
        0xaa, // Start byte
        0x20, // Length
        0xac, // ApplianceType
        0x00, // Frame sync check (not used)
        0x00, // Reserved
        0x00, // Reserved
        0x00, // MsgId
        0x00, // Protocol version
        0x03, // Agreement version
        0x03  // Msg type
      };
      
      const byte get_status_part[21] = {
        0x41, 0x81, 0x00, 0xff, 0x03, 0xff,
        0x00, 0x02, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x03
      };
      
      const byte set_status_part[25] = {
        0x40,0x42,0x00,0x00,0x00,0x00,0x00,0x30,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00 
      };
    
      const byte crc8Table[256] = {
        0x00, 0x5E, 0xBC, 0xE2, 0x61, 0x3F, 0xDD, 0x83,
        0xC2, 0x9C, 0x7E, 0x20, 0xA3, 0xFD, 0x1F, 0x41,
        0x9D, 0xC3, 0x21, 0x7F, 0xFC, 0xA2, 0x40, 0x1E,
        0x5F, 0x01, 0xE3, 0xBD, 0x3E, 0x60, 0x82, 0xDC,
        0x23, 0x7D, 0x9F, 0xC1, 0x42, 0x1C, 0xFE, 0xA0,
        0xE1, 0xBF, 0x5D, 0x03, 0x80, 0xDE, 0x3C, 0x62,
        0xBE, 0xE0, 0x02, 0x5C, 0xDF, 0x81, 0x63, 0x3D,
        0x7C, 0x22, 0xC0, 0x9E, 0x1D, 0x43, 0xA1, 0xFF,
        0x46, 0x18, 0xFA, 0xA4, 0x27, 0x79, 0x9B, 0xC5,
        0x84, 0xDA, 0x38, 0x66, 0xE5, 0xBB, 0x59, 0x07,
        0xDB, 0x85, 0x67, 0x39, 0xBA, 0xE4, 0x06, 0x58,
        0x19, 0x47, 0xA5, 0xFB, 0x78, 0x26, 0xC4, 0x9A,
        0x65, 0x3B, 0xD9, 0x87, 0x04, 0x5A, 0xB8, 0xE6,
        0xA7, 0xF9, 0x1B, 0x45, 0xC6, 0x98, 0x7A, 0x24,
        0xF8, 0xA6, 0x44, 0x1A, 0x99, 0xC7, 0x25, 0x7B,
        0x3A, 0x64, 0x86, 0xD8, 0x5B, 0x05, 0xE7, 0xB9,
        0x8C, 0xD2, 0x30, 0x6E, 0xED, 0xB3, 0x51, 0x0F,
        0x4E, 0x10, 0xF2, 0xAC, 0x2F, 0x71, 0x93, 0xCD,
        0x11, 0x4F, 0xAD, 0xF3, 0x70, 0x2E, 0xCC, 0x92,
        0xD3, 0x8D, 0x6F, 0x31, 0xB2, 0xEC, 0x0E, 0x50,
        0xAF, 0xF1, 0x13, 0x4D, 0xCE, 0x90, 0x72, 0x2C,
        0x6D, 0x33, 0xD1, 0x8F, 0x0C, 0x52, 0xB0, 0xEE,
        0x32, 0x6C, 0x8E, 0xD0, 0x53, 0x0D, 0xEF, 0xB1,
        0xF0, 0xAE, 0x4C, 0x12, 0x91, 0xCF, 0x2D, 0x73,
        0xCA, 0x94, 0x76, 0x28, 0xAB, 0xF5, 0x17, 0x49,
        0x08, 0x56, 0xB4, 0xEA, 0x69, 0x37, 0xD5, 0x8B,
        0x57, 0x09, 0xEB, 0xB5, 0x36, 0x68, 0x8A, 0xD4,
        0x95, 0xCB, 0x29, 0x77, 0xF4, 0xAA, 0x48, 0x16,
        0xE9, 0xB7, 0x55, 0x0B, 0x88, 0xD6, 0x34, 0x6A,
        0x2B, 0x75, 0x97, 0xC9, 0x4A, 0x14, 0xF6, 0xA8,
        0x74, 0x2A, 0xC8, 0x96, 0x15, 0x4B, 0xA9, 0xF7,
        0xB6, 0xE8, 0x0A, 0x54, 0xD7, 0x89, 0x6B, 0x35
      };
    
      //helpers
      void fifo_put(serial_buffer *packet);
      serial_buffer *fifo_get();
      void fifo_pop();
      byte calculate_crc (byte *data, int length);
      byte calculate_checksum (byte *data, int length);
      void array_to_string(byte array[], unsigned int len, char buffer[]);
      bool ckeck_crc(serial_buffer *buf);
      void set_crc(serial_buffer *buf);
      bool ckeck_checksum(serial_buffer *buf);
      void set_checksum(serial_buffer *buf);
      void clear_buffer(serial_buffer *buf);
      void log_data(serial_buffer *buf);
      
      //general
      void parse_answer() ;
      void set_status(int mode, int temp, int power, int speed, int hswing, int vswing);
      void get_status();
    };
}
#endif