OVMS3-idf/components/driver/include/driver/adc2_wifi_internal.h
esp32de 7c0020bfd0 feat(adc2): append adc2 support and api and the lock with WIFI module
append adc support and api
- esp_err_t adc2_config_width(adc_bits_width_t width_bit);
- esp_err_t adc2_config_channel_atten(adc2_channel_t channel, adc_atten_t atten);
- int adc2_get_voltage(adc2_channel_t channel);
2017-10-26 14:35:29 +08:00

52 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.
#ifndef _DRIVER_ADC2_INTERNAL_H_
#define _DRIVER_ADC2_INTERNAL_H_
#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();
/**
* @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();
#ifdef __cplusplus
}
#endif
#endif /*_DRIVER_ADC2_INTERNAL_H_*/