receiver_mitsubishi_heavy_zmp.cpp

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#include "receiver_mitsubishi_heavy.h"
#include "heatpumpir.h"
 
#if defined(USE_ARDUINO) || defined(USE_ESP32)
 
#include <HeatpumpIRFactory.h>
 
namespace esphome::heatpumpir {
 
// Fan speed sits in bits 7:5 of byte 7; the vertical swing code spans bit 1 of byte 5 and bits 4:3 of byte 7
static constexpr uint8_t BYTE_SWING_H = 5;
static constexpr uint8_t BYTE_FAN = 7;
static constexpr uint8_t FAN_SPEED_MASK = 0xE0;
static constexpr uint8_t VS_MASK_BYTE5 = 0x02;
static constexpr uint8_t VS_MASK_BYTE7 = 0x18;
// The library has no horizontal swing for ZMP and always sends MITSUBISHI_HEAVY_ZMP_HS_STOP (0xCC) in byte 5.
// Captures of the remote show 0x5C while it swings; the mask leaves out the vertical swing and clean bits.
static constexpr uint8_t HORIZONTAL_SWING_MASK = 0xDC;
static constexpr uint8_t HORIZONTAL_SWING_ACTIVE = 0x5C;
 
void decode_mitsubishi_heavy_zmp(const uint8_t frame[MITSUBISHI_HEAVY_FRAME_LENGTH], HeatpumpIRClimate &climate) {
  uint8_t fan = frame[BYTE_FAN] & FAN_SPEED_MASK;
  climate.preset = climate::CLIMATE_PRESET_NONE;
  switch (fan) {
    case MITSUBISHI_HEAVY_ZMP_FAN_AUTO:
      climate.fan_mode = climate::CLIMATE_FAN_AUTO;
      break;
    case MITSUBISHI_HEAVY_ZMP_FAN1:
      climate.fan_mode = climate::CLIMATE_FAN_LOW;
      break;
    case MITSUBISHI_HEAVY_ZMP_FAN2:
      climate.fan_mode = climate::CLIMATE_FAN_MEDIUM;
      break;
    case MITSUBISHI_HEAVY_ZMP_FAN3:
      climate.fan_mode = climate::CLIMATE_FAN_HIGH;
      break;
    case MITSUBISHI_HEAVY_ZMP_HIPOWER:
      climate.preset = climate::CLIMATE_PRESET_BOOST;
      break;  // the remote keeps the fan mode and restores it when the preset ends
    case MITSUBISHI_HEAVY_ZMP_ECONO:
      climate.preset = climate::CLIMATE_PRESET_ECO;
      break;
  }
 
  uint8_t swing_h = frame[BYTE_SWING_H] & HORIZONTAL_SWING_MASK;
  uint8_t swing_v = (frame[BYTE_SWING_H] & VS_MASK_BYTE5) | (frame[BYTE_FAN] & VS_MASK_BYTE7);
  bool h_swing = (swing_h == HORIZONTAL_SWING_ACTIVE);
  bool v_swing = (swing_v == MITSUBISHI_HEAVY_ZMP_VS_SWING);
 
  if (h_swing && v_swing) {
    climate.swing_mode = climate::CLIMATE_SWING_BOTH;
  } else if (h_swing) {
    climate.swing_mode = climate::CLIMATE_SWING_HORIZONTAL;
  } else if (v_swing) {
    climate.swing_mode = climate::CLIMATE_SWING_VERTICAL;
  } else {
    climate.swing_mode = climate::CLIMATE_SWING_OFF;
  }
}
 
}  // namespace esphome::heatpumpir
 
#endif