pcf8574.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 {
namespace pcf8574 {

class PCF8574Component : public Component, public i2c::I2CDevice {
 public:
  PCF8574Component() = default;

  void set_pcf8575(bool pcf8575) { pcf8575_ = pcf8575; }

  void setup() 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 read_gpio_();

  bool write_gpio_();

  uint16_t mode_mask_{0x00};
  uint16_t output_mask_{0x00};
  uint16_t input_mask_{0x00};
  bool pcf8575_;  
};

class PCF8574GPIOPin : public GPIOPin {
 public:
  void setup() override;
  void pin_mode(gpio::Flags flags) override;
  bool digital_read() override;
  void digital_write(bool value) override;
  std::string dump_summary() const override;

  void set_parent(PCF8574Component *parent) { parent_ = parent; }
  void set_pin(uint8_t pin) { pin_ = pin; }
  void set_inverted(bool inverted) { inverted_ = inverted; }
  void set_flags(gpio::Flags flags) { flags_ = flags; }

 protected:
  PCF8574Component *parent_;
  uint8_t pin_;
  bool inverted_;
  gpio::Flags flags_;
};

}  // namespace pcf8574
}  // namespace esphome