waveshare_io_ch32v003.h

Go to the documentation of this file.

#pragma once
 
#include "esphome/components/gpio_expander/cached_gpio.h"
#include "esphome/components/i2c/i2c.h"
#include "esphome/core/component.h"
#include "esphome/core/hal.h"
 
namespace esphome::waveshare_io_ch32v003 {
 
class WaveshareIOCH32V003Component : public Component,
                                     public i2c::I2CDevice,
                                     public gpio_expander::CachedGpioExpander<uint8_t, 8> {
 public:
  WaveshareIOCH32V003Component() = default;
 
  void setup() override;
  void pin_mode(uint8_t pin, gpio::Flags flags);
 
  float get_setup_priority() const override;
 
  void dump_config() override;
 
  void loop() override;
 
  uint16_t get_adc_value();
  uint8_t get_rtc_interrupt_status();
  void set_pwm_value(uint8_t value);  // 0 - 255
 
 protected:
  friend class WaveshareIOCH32V003GPIOPin;
 
  bool digital_read_hw(uint8_t pin) override;
  bool digital_read_cache(uint8_t pin) override;
  void digital_write_hw(uint8_t pin, bool value) override;
 
  uint8_t mode_mask_{0x00};    // Mask for the pin mode - 1 means output, 0 means input
  uint8_t output_mask_{0x00};  // The mask to write as output state - 1 means HIGH, 0 means LOW
  uint8_t input_mask_{0x00};   // The state read in digital_read_hw - 1 means HIGH, 0 means LOW
 
  bool write_gpio_modes_();
  bool write_gpio_outputs_();
};
 
class WaveshareIOCH32V003GPIOPin : public GPIOPin, public Parented<WaveshareIOCH32V003Component> {
 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_pin(uint8_t pin) { this->pin_ = pin; }
  void set_inverted(bool inverted) { this->inverted_ = inverted; }
  void set_flags(gpio::Flags flags) { this->flags_ = flags; }
 
  gpio::Flags get_flags() const override { return this->flags_; }
 
 protected:
  uint8_t pin_{};
  bool inverted_{};
  gpio::Flags flags_{};
};
 
}  // namespace esphome::waveshare_io_ch32v003