esp-idf/components/driver/adc2_wifi_private.h
fuzhibo baa7898e35 driver(adc/dac): fix adc dac driver for esp32s2
1. update register file about adc; 2. fix adc driver; 3. add UT for adc/dac;

See merge request espressif/esp-idf!7776
2020-04-01 12:41:51 +08:00

50 lines
1.5 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include "esp_err.h"
/**
* @brief For WIFI module to claim the usage of ADC2.
*
* Other tasks will be forbidden to use ADC2 between ``adc2_wifi_acquire`` and ``adc2_wifi_release``.
* The WIFI 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 adc2_wifi_acquire(void);
/**
* @brief For WIFI module to let other tasks use the ADC2 when WIFI is not work.
*
* Other tasks will be forbidden to use ADC2 between ``adc2_wifi_acquire`` and ``adc2_wifi_release``.
* Call this function to release the occupation of ADC2 by WIFI.
*
* @return always return ESP_OK.
*/
esp_err_t adc2_wifi_release(void);
#ifdef __cplusplus
}
#endif