/**
  ******************************************************************************
  * @file    audio.h
  * @author  MCD Application Team
  * @version V4.0.1
  * @date    21-July-2015
  * @brief   This header file contains the common defines and functions prototypes
  *          for the Audio driver.  
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __AUDIO_H
#define __AUDIO_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include <stdint.h>

/** @addtogroup BSP
  * @{
  */

/** @addtogroup Components
  * @{
  */
    
/** @addtogroup AUDIO
  * @{
  */

/** @defgroup AUDIO_Exported_Constants
  * @{
  */

/* Codec audio Standards */
#define CODEC_STANDARD                0x04
#define I2S_STANDARD                  I2S_STANDARD_PHILIPS

#define OUTPUT_DEVICE_SPEAKER                 ((uint16_t)0x0001)
#define OUTPUT_DEVICE_HEADPHONE               ((uint16_t)0x0002)
#define OUTPUT_DEVICE_BOTH                    ((uint16_t)0x0003)
#define OUTPUT_DEVICE_AUTO                    ((uint16_t)0x0004)
#define INPUT_DEVICE_DIGITAL_MICROPHONE_1     ((uint16_t)0x0100)
#define INPUT_DEVICE_DIGITAL_MICROPHONE_2     ((uint16_t)0x0200)
#define INPUT_DEVICE_INPUT_LINE_1             ((uint16_t)0x0300)
#define INPUT_DEVICE_INPUT_LINE_2             ((uint16_t)0x0400)
#define INPUT_DEVICE_DIGITAL_MIC1_MIC2        ((uint16_t)0x0800)

/* Volume Levels values */
#define DEFAULT_VOLMIN                0x00
#define DEFAULT_VOLMAX                0xFF
#define DEFAULT_VOLSTEP               0x04

#define AUDIO_PAUSE                   0
#define AUDIO_RESUME                  1

/* Codec POWER DOWN modes */
#define CODEC_PDWN_HW                 1
#define CODEC_PDWN_SW                 2

/* MUTE commands */
#define AUDIO_MUTE_ON                 1
#define AUDIO_MUTE_OFF                0

/* AUDIO FREQUENCY */
#define AUDIO_FREQUENCY_192K          ((uint32_t)192000)
#define AUDIO_FREQUENCY_96K           ((uint32_t)96000)
#define AUDIO_FREQUENCY_48K           ((uint32_t)48000)
#define AUDIO_FREQUENCY_44K           ((uint32_t)44100)
#define AUDIO_FREQUENCY_32K           ((uint32_t)32000)
#define AUDIO_FREQUENCY_22K           ((uint32_t)22050)
#define AUDIO_FREQUENCY_16K           ((uint32_t)16000)
#define AUDIO_FREQUENCY_11K           ((uint32_t)11025)
#define AUDIO_FREQUENCY_8K            ((uint32_t)8000)  

#define VOLUME_CONVERT(Volume)        (((Volume) > 100)? 100:((uint8_t)(((Volume) * 63) / 100)))
#define VOLUME_IN_CONVERT(Volume)     (((Volume) >= 100)? 239:((uint8_t)(((Volume) * 240) / 100)))

/**
  * @}
  */

/** @defgroup AUDIO_Exported_Types
  * @{
  */

/** @defgroup AUDIO_Driver_structure  Audio Driver structure
  * @{
  */
typedef struct
{
  uint32_t  (*Init)(uint16_t, uint16_t, uint8_t, uint32_t);
  void      (*DeInit)(void);
  uint32_t  (*ReadID)(uint16_t);
  uint32_t  (*Play)(uint16_t, uint16_t*, uint16_t);
  uint32_t  (*Pause)(uint16_t);
  uint32_t  (*Resume)(uint16_t);
  uint32_t  (*Stop)(uint16_t, uint32_t);
  uint32_t  (*SetFrequency)(uint16_t, uint32_t);
  uint32_t  (*SetVolume)(uint16_t, uint8_t);
  uint32_t  (*SetMute)(uint16_t, uint32_t);
  uint32_t  (*SetOutputMode)(uint16_t, uint8_t);
  uint32_t  (*Reset)(uint16_t);
}AUDIO_DrvTypeDef;
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* __AUDIO_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/