GPIO_EspressifIDF.h

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#if defined(ESP32_CMAKE)
#include <driver/gpio.h>
#include <esp_err.h>
#include "Platforms/API_GPIO.h"
#include "Platforms/IDriverDeviceInfo.h"
 
namespace audio_driver {
 
class GPIO : public API_GPIO {
public:
  GPIO() = default;
 
  bool begin(IDriverDeviceInfo &pins) {
    // No global init required in ESP-IDF for GPIO
    return true;
  }
 
  void end() {
    // Optional: reset GPIOs if needed
  }
 
  void pinMode(GpioPin pin, int mode) {
    gpio_config_t io_conf = {};
    io_conf.pin_bit_mask = (1ULL << pin);
 
    switch (mode) {
    case INPUT:
      io_conf.mode = GPIO_MODE_INPUT;
      io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
      io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
      io_conf.intr_type = GPIO_INTR_DISABLE;
      break;
 
    case INPUT_PULLUP:
      io_conf.mode = GPIO_MODE_INPUT;
      io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
      io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
      io_conf.intr_type = GPIO_INTR_DISABLE;
      break;
 
    case INPUT_PULLDOWN:
      io_conf.mode = GPIO_MODE_INPUT;
      io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
      io_conf.pull_down_en = GPIO_PULLDOWN_ENABLE;
      io_conf.intr_type = GPIO_INTR_DISABLE;
      break;
 
    case OUTPUT:
    default:
      io_conf.mode = GPIO_MODE_OUTPUT;
      io_conf.pull_up_en = GPIO_PULLUP_DISABLE;
      io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
      io_conf.intr_type = GPIO_INTR_DISABLE;
      break;
    }
 
    gpio_config(&io_conf);
  }
 
  bool digitalWrite(GpioPin pin, bool value) {
    esp_err_t err = gpio_set_level((gpio_num_t)pin, value ? 1 : 0);
    return err == ESP_OK;
  }
 
  bool digitalRead(GpioPin pin) { return gpio_get_level((gpio_num_t)pin); }
  int analogRead(ADCPin pin) { return -1; }
};
 
} // namespace audio_driver
 
#endif