91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
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/****************************************************************************
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* boards/xtensa/esp32s2/common/include/esp32s2_es8311.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_XTENSA_ESP32S2_COMMON_INCLUDE_ESP32S2_ES8311_H
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#define __BOARDS_XTENSA_ESP32S2_COMMON_INCLUDE_ESP32S2_ES8311_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: esp32s2_es8311_initialize
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*
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* Description:
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* This function is called by platform-specific, setup logic to configure
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* and register the ES8311 device. This function will register the driver
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* as /dev/audio/pcm[x] where x is determined by the I2S port number.
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*
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* Input Parameters:
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* i2c_port - The I2C port used for the device;
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* i2c_addr - The I2C address used by the device;
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* i2c_freq - The I2C frequency used for the device.
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*
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* Returned Value:
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* Zero is returned on success. Otherwise, a negated errno value is
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* returned to indicate the nature of the failure.
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*
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****************************************************************************/
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int esp32s2_es8311_initialize(int i2c_port, uint8_t i2c_addr, int i2c_freq);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BOARDS_XTENSA_ESP32S2_COMMON_INCLUDE_ESP32S2_ES8311_H */
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