GPIO_Zephyr.h

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#pragma once
#include <stdint.h>
#include "API_GPIO.h"
#include <zephyr/drivers/gpio.h>
#include "IDriverDeviceInfo.h"
 
 
namespace audio_driver {
 
class GPIOZephyr : public API_GPIO {
 public:
  GPIOZephyr() = default;
 
  bool begin(IDriverDeviceInfo& pins) { return true; }
 
  void end() {}
 
  void pinMode(GpioPin pin, int mode) {
    if (pin == GPIO_UNDEFINED || !gpio_is_ready_dt(&pin)) {
      AD_LOGE("GPIO pin not ready");
      return;
    }
 
    gpio_flags_t flags;
    switch (mode) {
      case OUTPUT:
        flags = GPIO_OUTPUT;
        break;
      case INPUT:
        flags = GPIO_INPUT;
        break;
      case INPUT_PULLUP:
        flags = GPIO_INPUT | GPIO_PULL_UP;
        break;
      // case INPUT_PULLDOWN:
      //   flags = GPIO_INPUT | GPIO_PULL_DOWN;
      //   break;
      default:
        flags = GPIO_OUTPUT;
        break;
    }
 
    int rc = gpio_pin_configure_dt(&pin, flags);
    if (rc != 0) {
      AD_LOGE("Failed to configure GPIO pin: %d", rc);
    }
  }
 
  bool digitalWrite(GpioPin pin, bool value) {
    if (pin == GPIO_UNDEFINED || !gpio_is_ready_dt(&pin)) {
      AD_LOGE("GPIO pin not ready");
      return false;
    }
 
    int rc = gpio_pin_set_dt(&pin, value ? 1 : 0);
    if (rc != 0) {
      AD_LOGE("Failed to write GPIO pin: %d", rc);
      return false;
    }
    return true;
  }
 
  bool digitalRead(GpioPin pin) {
    if (pin == GPIO_UNDEFINED || !gpio_is_ready_dt(&pin)) {
      AD_LOGE("GPIO pin not ready");
      return false;
    }
 
    int rc = gpio_pin_get_dt(&pin);
    if (rc < 0) {
      AD_LOGE("Failed to read GPIO pin: %d", rc);
      return false;
    }
    return rc != 0;
  }
 
  int analogRead(ADCPin pin) {
    int rc = adc_channel_setup_dt(&pin);
    if (rc != 0) {
      AD_LOGE("ADC channel setup failed: %d", rc);
      return -1;
    }
    int16_t sample = 0;
    struct adc_sequence sequence = {
      .buffer      = &sample,
      .buffer_size = sizeof(sample),
    };
    adc_sequence_init_dt(&pin, &sequence);
    rc = adc_read_dt(&pin, &sequence);
    if (rc != 0) {
      AD_LOGE("ADC read failed: %d", rc);
      return -1;
    }
    return sample;
  }
};
 
using GPIO = GPIOZephyr;
 
}  // namespace audio_driver