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https://github.com/espressif/esp-idf.git
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52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "sdkconfig.h"
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#include "esp_err.h"
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#include "hal/adc_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef CONFIG_IDF_TARGET_ESP32
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/**
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* @brief ESP32 ADC DMA source selection.
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*/
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typedef enum {
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ADC_I2S_DATA_SRC_IO_SIG = 0, /*!< I2S data from GPIO matrix signal */
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ADC_I2S_DATA_SRC_ADC = 1, /*!< I2S data from ADC */
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} adc_i2s_source_t;
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#endif
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#if CONFIG_IDF_TARGET_ESP32
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/*---------------------------------------------------------------
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ESP32 Deprecated API
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---------------------------------------------------------------*/
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/**
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* @brief Set I2S data source
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* @param src I2S DMA data source, I2S DMA can get data from digital signals or from ADC.
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* @return
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* - ESP_OK success
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*/
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esp_err_t adc_set_i2s_data_source(adc_i2s_source_t src);
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/**
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* @brief Initialize I2S ADC mode
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* @param adc_unit ADC unit index
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* @param channel ADC channel index
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* @return
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* - ESP_OK success
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* - ESP_ERR_INVALID_ARG Parameter error
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*/
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esp_err_t adc_i2s_mode_init(adc_unit_t adc_unit, adc_channel_t channel);
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#endif
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#ifdef __cplusplus
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}
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#endif
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