RIOT/cpu/esp32/esp-idf/include/driver/gpio.h

#ifndef DRIVER_GPIO_H
#define DRIVER_GPIO_H

#ifdef ESP_IDF_CODE

#include_next "driver/gpio.h"

#else

#include "hal/gpio_types.h"

#define GPIO_PIN_COUNT  (SOC_GPIO_PIN_COUNT)

#endif

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __cplusplus
}
#endif

#endif /* DRIVER_GPIO_H */
cpu/esp32/esp-idf: minimum gpio definition for ESP-IDF headers A number of ESP-IDF header files that are needed to compile RIOT include the header file `driver/gpio.h` only because of the definition of the type `gpio_num_t`. However, this header file contains the entire GPIO API definition of the ESP-IDF, which conflicts with that of RIOT. The solution was to use a wrapper library that does not need to include the `driver/gpio.h` file of the ESP-IDF during compilation of RIOT code. This commit provides another approach which does not require such a wrapper library. It just provides its own `driver/gpio.h` in RIOT that is included by ESP-IDF header files instead of the original `driver/gpio.h` in ESP-IDF. It defines only the required `gpio_num_t` if RIOT code is compiled but includes the original `driver/gpio.h` of ESP-IDF if ESP-IDF code is compiled. This avoids to create a wrapper library for each module. 2023-03-27 00:39:50 +02:00			`#ifndef DRIVER_GPIO_H`
			`#define DRIVER_GPIO_H`

			`#ifdef ESP_IDF_CODE`

			`#include_next "driver/gpio.h"`

			`#else`

			`#include "hal/gpio_types.h"`

			`#define GPIO_PIN_COUNT (SOC_GPIO_PIN_COUNT)`

			`#endif`

			`#ifdef __cplusplus`
			`extern "C" {`
			`#endif`

			`#ifdef __cplusplus`
			`}`
			`#endif`

			`#endif /* DRIVER_GPIO_H */`