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- /****************************************************************************
- * include/nuttx/audio/wm8776.h
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you 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 __INCLUDE_NUTTX_AUDIO_WM8776_H
- #define __INCLUDE_NUTTX_AUDIO_WM8776_H
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <stdint.h>
- #include <stdbool.h>
- #include <nuttx/irq.h>
- #ifdef CONFIG_AUDIO_WM8776
- /****************************************************************************
- * Public Types
- ****************************************************************************/
- struct wm8776_lower_s;
- struct wm8776_lower_s
- {
- /* I2C characterization */
- uint32_t frequency; /* Initial I2C frequency */
- uint8_t address; /* 7-bit I2C address (only bits 0-6 used) */
- };
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- #ifdef __cplusplus
- #define EXTERN extern "C"
- extern "C"
- {
- #else
- #define EXTERN extern
- #endif
- /****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
- struct i2c_master_s;
- struct i2s_dev_s;
- struct audio_lowerhalf_s;
- FAR struct audio_lowerhalf_s *
- wm8776_initialize(FAR struct i2c_master_s *i2c,
- FAR struct i2s_dev_s *i2s,
- FAR const struct wm8776_lower_s *lower);
- #undef EXTERN
- #ifdef __cplusplus
- }
- #endif
- #endif /* CONFIG_AUDIO_WM8776 */
- #endif /* __INCLUDE_NUTTX_AUDIO_WM8776_H */
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