ch423.h

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#pragma once
 
#include "esphome/core/component.h"
#include "esphome/core/hal.h"
#include "esphome/components/i2c/i2c.h"
 
namespace esphome::ch423 {
 
class CH423Component : public Component, public i2c::I2CDevice {
 public:
  CH423Component() = default;
 
  void setup() override;
  void loop() override;
  bool digital_read(uint8_t pin);
  void digital_write(uint8_t pin, bool value);
  void pin_mode(uint8_t pin, gpio::Flags flags);
 
  float get_setup_priority() const override;
  void dump_config() override;
 
 protected:
  bool write_reg_(uint8_t reg, uint8_t value);
  uint8_t read_reg_(uint8_t reg);
  bool read_inputs_();
  bool write_outputs_();
 
  uint32_t output_bits_{0x00};
  uint8_t pin_read_flags_{0x00};
  uint8_t input_bits_{0x00};
  uint8_t sys_params_{0x00};
};
 
class CH423GPIOPin : public GPIOPin {
 public:
  void setup() override{};
  void pin_mode(gpio::Flags flags) override;
  bool digital_read() override;
  void digital_write(bool value) override;
  size_t dump_summary(char *buffer, size_t len) const override;
 
  void set_parent(CH423Component *parent) { parent_ = parent; }
  void set_pin(uint8_t pin) { pin_ = pin; }
  void set_inverted(bool inverted) { inverted_ = inverted; }
  void set_flags(gpio::Flags flags);
 
  gpio::Flags get_flags() const override { return this->flags_; }
 
 protected:
  CH423Component *parent_{};
  uint8_t pin_{};
  bool inverted_{};
  gpio::Flags flags_{};
};
 
}  // namespace esphome::ch423