1
0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
RIOT/cpu/esp32/include/adc_arch_private.h
2022-07-17 17:16:49 +02:00

66 lines
1.5 KiB
C

/*
* Copyright (C) 2022 Gunar Schorcht
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup cpu_esp32
* @{
*
* @file
* @brief Architecture specific internal ADC functions for ESP32
*
* @author Gunar Schorcht <gunar@schorcht.net>
* @}
*/
#ifndef ADC_ARCH_PRIVATE_H
#define ADC_ARCH_PRIVATE_H
#ifdef __cplusplus
extern "C" {
#endif
#include "hal/adc_types.h"
#include "periph/gpio.h"
#ifndef DOXYGEN /* hide implementation details from doxygen */
#define RTCIO_GPIO(n) n /* n-th RTCIO GPIO */
#define RTCIO_NA UINT8_MAX /* RTCIO pin not available */
/**
* @brief ADC hardware descriptor (for internal use only)
*/
typedef struct {
uint8_t rtc_gpio; /**< RTC GPIO number */
gpio_t gpio; /**< GPIO */
adc_unit_t adc_ctrl; /**< ADC controller */
adc_channel_t adc_channel; /**< channel of ADC controller */
char* pad_name; /**< symbolic name of pad */
} _adc_hw_desc_t;
/**
* @brief ADC hardware descriptor table (for internal use only)
*
* @note The index of entries in the table MUST correspond to the
* RTCIO GPIO number.
*/
extern const _adc_hw_desc_t _adc_hw[];
/**
* @brief GPIO to RTC IO map (for internal use only)
*/
extern const gpio_t _gpio_rtcio_map[];
#endif /* !DOXYGEN */
#ifdef __cplusplus
}
#endif
#endif /* ADC_ARCH_PRIVATE_H */