sy6970_binary_sensor.h

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#pragma once
 
#include "../sy6970.h"
#include "esphome/components/binary_sensor/binary_sensor.h"
 
namespace esphome::sy6970 {
 
template<uint8_t REG, uint8_t SHIFT, uint8_t MASK, uint8_t TRUE_VALUE>
class StatusBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
 public:
  void on_data(const SY6970Data &data) override {
    uint8_t value = (data.registers[REG] >> SHIFT) & MASK;
    this->publish_state(value == TRUE_VALUE);
  }
};
 
template<uint8_t REG, uint8_t SHIFT, uint8_t MASK, uint8_t FALSE_VALUE>
class InverseStatusBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
 public:
  void on_data(const SY6970Data &data) override {
    uint8_t value = (data.registers[REG] >> SHIFT) & MASK;
    this->publish_state(value != FALSE_VALUE);
  }
};
 
// Custom binary sensor for charging (true when pre-charge or fast charge)
class SY6970ChargingBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
 public:
  void on_data(const SY6970Data &data) override {
    uint8_t chrg_stat = (data.registers[SY6970_REG_STATUS] >> 3) & 0x03;
    bool charging = chrg_stat != CHARGE_STATUS_NOT_CHARGING && chrg_stat != CHARGE_STATUS_CHARGE_DONE;
    this->publish_state(charging);
  }
};
 
// Specialized sensor types using templates
// VBUS connected: BUS_STATUS != NO_INPUT
using SY6970VbusConnectedBinarySensor = InverseStatusBinarySensor<SY6970_REG_STATUS, 5, 0x07, BUS_STATUS_NO_INPUT>;
 
// Charge done: CHARGE_STATUS == CHARGE_DONE
using SY6970ChargeDoneBinarySensor = StatusBinarySensor<SY6970_REG_STATUS, 3, 0x03, CHARGE_STATUS_CHARGE_DONE>;
 
}  // namespace esphome::sy6970