mirror of
https://github.com/espressif/esp-idf.git
synced 2025-10-31 13:09:38 +00:00
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "esp_err.h"
|
|
|
|
|
|
/**
|
|
* @brief For I2S dma to claim the usage of ADC1.
|
|
*
|
|
* Other tasks will be forbidden to use ADC1 between ``adc1_dma_mode_acquire`` and ``adc1_i2s_release``.
|
|
* The I2S module may have to wait for a short time for the current conversion (if exist) to finish.
|
|
*
|
|
* @return
|
|
* - ESP_OK success
|
|
* - ESP_ERR_TIMEOUT reserved for future use. Currently the function will wait until success.
|
|
*/
|
|
esp_err_t adc1_dma_mode_acquire(void);
|
|
|
|
/**
|
|
* @brief For ADC1 to claim the usage of ADC1.
|
|
*
|
|
* Other tasks will be forbidden to use ADC1 between ``adc1_rtc_mode_acquire`` and ``adc1_i2s_release``.
|
|
* The ADC1 may have to wait for some time for the I2S read operation to finish.
|
|
*
|
|
* @return
|
|
* - ESP_OK success
|
|
* - ESP_ERR_TIMEOUT reserved for future use. Currently the function will wait until success.
|
|
*/
|
|
esp_err_t adc1_rtc_mode_acquire(void);
|
|
|
|
/**
|
|
* @brief to let other tasks use the ADC1 when I2S is not work.
|
|
*
|
|
* Other tasks will be forbidden to use ADC1 between ``adc1_adc/i2s_mode_acquire`` and ``adc1_i2s_release``.
|
|
* Call this function to release the occupation of ADC1
|
|
*
|
|
* @return always return ESP_OK.
|
|
*/
|
|
esp_err_t adc1_lock_release(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|