83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/****************************************************************************
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* include/nuttx/audio/wm8776.h
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*
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* SPDX-License-Identifier: Apache-2.0
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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 __INCLUDE_NUTTX_AUDIO_WM8776_H
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#define __INCLUDE_NUTTX_AUDIO_WM8776_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/irq.h>
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#ifdef CONFIG_AUDIO_WM8776
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct wm8776_lower_s;
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struct wm8776_lower_s
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{
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/* I2C characterization */
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uint32_t frequency; /* Initial I2C frequency */
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uint8_t address; /* 7-bit I2C address (only bits 0-6 used) */
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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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* Public Function Prototypes
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****************************************************************************/
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struct i2c_master_s;
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struct i2s_dev_s;
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struct audio_lowerhalf_s;
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FAR struct audio_lowerhalf_s *
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wm8776_initialize(FAR struct i2c_master_s *i2c,
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FAR struct i2s_dev_s *i2s,
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FAR const struct wm8776_lower_s *lower);
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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 /* CONFIG_AUDIO_WM8776 */
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#endif /* __INCLUDE_NUTTX_AUDIO_WM8776_H */
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