File content as of revision 6:e1d9da7fe856:

/**
  ******************************************************************************
  * @file    stm32746g_discovery_audio.h
  * @author  MCD Application Team
  * @version V1.1.1
  * @date    02-June-2016
  * @brief   This file contains the common defines and functions prototypes for
  *          the stm32746g_discovery_audio.c driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2016 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 __STM32746G_DISCOVERY_AUDIO_H
#define __STM32746G_DISCOVERY_AUDIO_H

#ifdef __cplusplus
 extern "C" {
#endif 

/* Includes ------------------------------------------------------------------*/
/* Include audio component Driver */
#include "../Components/wm8994/wm8994.h"
#include "stm32746g_discovery.h"

/** @addtogroup BSP
  * @{
  */ 

/** @addtogroup STM32746G_DISCOVERY
  * @{
  */
    
/** @defgroup STM32746G_DISCOVERY_AUDIO STM32746G_DISCOVERY_AUDIO
  * @{
  */

/** @defgroup STM32746G_DISCOVERY_AUDIO_Exported_Types STM32746G_DISCOVERY_AUDIO Exported Types
  * @{
  */
/**
  * @}
  */ 

/** @defgroup STM32746G_DISCOVERY_AUDIO_Exported_Constants STM32746G_DISCOVERY_AUDIO Exported Constants
  * @{
  */
 
/*------------------------------------------------------------------------------
                          USER SAI defines parameters
 -----------------------------------------------------------------------------*/
/*  CODEC_AudioFrame_SLOT_TDMMode 
   In W8994 codec the Audio frame contains 4 slots : TDM Mode
   TDM format :
   +------------------|------------------|--------------------|-------------------+ 
   | CODEC_SLOT0 Left | CODEC_SLOT1 Left | CODEC_SLOT0 Right  | CODEC_SLOT1 Right |
   +------------------------------------------------------------------------------+
  */
/* To have 2 separate audio stream in Both headphone and speaker the 4 slot must be activated */
#define CODEC_AUDIOFRAME_SLOT_0123           SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_1 | SAI_SLOTACTIVE_2 | SAI_SLOTACTIVE_3
/* To have an audio stream in headphone only SAI Slot 0 and Slot 2 must be activated */ 
#define CODEC_AUDIOFRAME_SLOT_02             SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_2
/* To have an audio stream in speaker only SAI Slot 1 and Slot 3 must be activated */ 
#define CODEC_AUDIOFRAME_SLOT_13             SAI_SLOTACTIVE_1 | SAI_SLOTACTIVE_3

/* SAI OUT peripheral configuration defines */
#define AUDIO_OUT_SAIx                           SAI2_Block_A
#define AUDIO_OUT_SAIx_CLK_ENABLE()              __HAL_RCC_SAI2_CLK_ENABLE()
#define AUDIO_OUT_SAIx_CLK_DISABLE()             __HAL_RCC_SAI2_CLK_DISABLE()
#define AUDIO_OUT_SAIx_SCK_AF                    GPIO_AF10_SAI2
#define AUDIO_OUT_SAIx_FS_SD_MCLK_AF             GPIO_AF10_SAI2

#define AUDIO_OUT_SAIx_MCLK_ENABLE()             __HAL_RCC_GPIOI_CLK_ENABLE()
#define AUDIO_OUT_SAIx_MCLK_GPIO_PORT            GPIOI
#define AUDIO_OUT_SAIx_MCLK_PIN                  GPIO_PIN_4
#define AUDIO_OUT_SAIx_SCK_SD_ENABLE()           __HAL_RCC_GPIOI_CLK_ENABLE()
#define AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT          GPIOI
#define AUDIO_OUT_SAIx_SCK_PIN                   GPIO_PIN_5
#define AUDIO_OUT_SAIx_SD_PIN                    GPIO_PIN_6
#define AUDIO_OUT_SAIx_FS_ENABLE()               __HAL_RCC_GPIOI_CLK_ENABLE()
#define AUDIO_OUT_SAIx_FS_GPIO_PORT              GPIOI
#define AUDIO_OUT_SAIx_FS_PIN                    GPIO_PIN_7

/* SAI DMA Stream definitions */
#define AUDIO_OUT_SAIx_DMAx_CLK_ENABLE()         __HAL_RCC_DMA2_CLK_ENABLE()
#define AUDIO_OUT_SAIx_DMAx_STREAM               DMA2_Stream4
#define AUDIO_OUT_SAIx_DMAx_CHANNEL              DMA_CHANNEL_3
#define AUDIO_OUT_SAIx_DMAx_IRQ                  DMA2_Stream4_IRQn
#define AUDIO_OUT_SAIx_DMAx_PERIPH_DATA_SIZE     DMA_PDATAALIGN_HALFWORD
#define AUDIO_OUT_SAIx_DMAx_MEM_DATA_SIZE        DMA_MDATAALIGN_HALFWORD
#define DMA_MAX_SZE                              ((uint16_t)0xFFFF)
   
#define AUDIO_OUT_SAIx_DMAx_IRQHandler           DMA2_Stream4_IRQHandler

/* Select the interrupt preemption priority for the DMA interrupt */
#define AUDIO_OUT_IRQ_PREPRIO                    ((uint32_t)0x0E)   /* Select the preemption priority level(0 is the highest) */

/*------------------------------------------------------------------------------
                        AUDIO IN CONFIGURATION
------------------------------------------------------------------------------*/
/* SAI IN peripheral configuration defines */
#define AUDIO_IN_SAIx                            SAI2_Block_B
#define AUDIO_IN_SAIx_CLK_ENABLE()               __HAL_RCC_SAI2_CLK_ENABLE()
#define AUDIO_IN_SAIx_CLK_DISABLE()              __HAL_RCC_SAI2_CLK_DISABLE()
#define AUDIO_IN_SAIx_SD_AF                      GPIO_AF10_SAI2

#define AUDIO_IN_SAIx_SD_ENABLE()                __HAL_RCC_GPIOG_CLK_ENABLE()
#define AUDIO_IN_SAIx_SD_GPIO_PORT               GPIOG
#define AUDIO_IN_SAIx_SD_PIN                     GPIO_PIN_10

#define AUDIO_IN_INT_GPIO_ENABLE()               __HAL_RCC_GPIOH_CLK_ENABLE()
#define AUDIO_IN_INT_GPIO_PORT                   GPIOH
#define AUDIO_IN_INT_GPIO_PIN                    GPIO_PIN_15
#define AUDIO_IN_INT_IRQ                         EXTI15_10_IRQn

/* SAI DMA Stream definitions */
#define AUDIO_IN_SAIx_DMAx_CLK_ENABLE()          __HAL_RCC_DMA2_CLK_ENABLE()
#define AUDIO_IN_SAIx_DMAx_STREAM                DMA2_Stream7
#define AUDIO_IN_SAIx_DMAx_CHANNEL               DMA_CHANNEL_0
#define AUDIO_IN_SAIx_DMAx_IRQ                   DMA2_Stream7_IRQn
#define AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE      DMA_PDATAALIGN_HALFWORD
#define AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE         DMA_MDATAALIGN_HALFWORD

#define AUDIO_IN_SAIx_DMAx_IRQHandler            DMA2_Stream7_IRQHandler
#define AUDIO_IN_INT_IRQHandler                  EXTI15_10_IRQHandler

/* Select the interrupt preemption priority and subpriority for the IT/DMA interrupt */
#define AUDIO_IN_IRQ_PREPRIO                     ((uint32_t)0x0F)   /* Select the preemption priority level(0 is the highest) */

/*------------------------------------------------------------------------------
             CONFIGURATION: Audio Driver Configuration parameters
------------------------------------------------------------------------------*/

#define AUDIODATA_SIZE                      ((uint16_t)2)   /* 16-bits audio data size */

/* Audio status definition */     
#define AUDIO_OK                            ((uint8_t)0)
#define AUDIO_ERROR                         ((uint8_t)1)
#define AUDIO_TIMEOUT                       ((uint8_t)2)

/* AudioFreq * DataSize (2 bytes) * NumChannels (Stereo: 2) */
#define DEFAULT_AUDIO_IN_FREQ               I2S_AUDIOFREQ_16K
#define DEFAULT_AUDIO_IN_BIT_RESOLUTION     ((uint8_t)16)
#define DEFAULT_AUDIO_IN_CHANNEL_NBR        ((uint8_t)2) /* Mono = 1, Stereo = 2 */
#define DEFAULT_AUDIO_IN_VOLUME             ((uint16_t)64)

/*------------------------------------------------------------------------------
                    OPTIONAL Configuration defines parameters
------------------------------------------------------------------------------*/

/* Delay for the Codec to be correctly reset */
#define CODEC_RESET_DELAY                   ((uint8_t)5)
   

/*------------------------------------------------------------------------------
                            OUTPUT DEVICES definition
------------------------------------------------------------------------------*/
/* Alias on existing output devices to adapt for 2 headphones output */
#define OUTPUT_DEVICE_HEADPHONE1 OUTPUT_DEVICE_HEADPHONE
#define OUTPUT_DEVICE_HEADPHONE2 OUTPUT_DEVICE_SPEAKER /* Headphone2 is connected to Speaker output of the wm8994 */
   
/**
  * @}
  */
 
/** @defgroup STM32746G_DISCOVERY_AUDIO_Exported_Variables STM32746G_DISCOVERY_AUDIO Exported Variables
  * @{
  */
extern __IO uint16_t AudioInVolume;
 /**
  * @}
  */
   
/** @defgroup STM32746G_DISCOVERY_AUDIO_Exported_Macros STM32746G_DISCOVERY_AUDIO Exported Macros
  * @{
  */
#define DMA_MAX(x)           (((x) <= DMA_MAX_SZE)? (x):DMA_MAX_SZE)
/**
  * @}
  */ 

/** @addtogroup STM32746G_DISCOVERY_AUDIO_OUT_Exported_Functions
  * @{
  */
uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq);
uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size);
void    BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size);
uint8_t BSP_AUDIO_OUT_Pause(void);
uint8_t BSP_AUDIO_OUT_Resume(void);
uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option);
uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume);
void    BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq);
void    BSP_AUDIO_OUT_SetAudioFrameSlot(uint32_t AudioFrameSlot);
uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd);
uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output);
void    BSP_AUDIO_OUT_DeInit(void);

/* User Callbacks: user has to implement these functions in his code if they are needed. */
/* This function is called when the requested data has been completely transferred.*/
void    BSP_AUDIO_OUT_TransferComplete_CallBack(void);

/* This function is called when half of the requested buffer has been transferred. */
void    BSP_AUDIO_OUT_HalfTransfer_CallBack(void);

/* This function is called when an Interrupt due to transfer error on or peripheral
   error occurs. */
void    BSP_AUDIO_OUT_Error_CallBack(void);

/* These function can be modified in case the current settings (e.g. DMA stream)
   need to be changed for specific application needs */
void  BSP_AUDIO_OUT_ClockConfig(SAI_HandleTypeDef *hsai, uint32_t AudioFreq, void *Params);
void  BSP_AUDIO_OUT_MspInit(SAI_HandleTypeDef *hsai, void *Params);
void  BSP_AUDIO_OUT_MspDeInit(SAI_HandleTypeDef *hsai, void *Params);

/**
  * @}
  */ 

/** @defgroup STM32746G_DISCOVERY_AUDIO_IN_Exported_Functions STM32746G_DISCOVERY_AUDIO_IN Exported Functions
  * @{
  */
uint8_t BSP_AUDIO_IN_Init(uint16_t InputDevice, uint8_t Volume, uint32_t AudioFreq);
uint8_t BSP_AUDIO_IN_OUT_Init(uint16_t InputDevice, uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq);
uint8_t BSP_AUDIO_IN_Record(uint16_t *pData, uint32_t Size);
uint8_t BSP_AUDIO_IN_Stop(uint32_t Option);
uint8_t BSP_AUDIO_IN_Pause(void);
uint8_t BSP_AUDIO_IN_Resume(void);
uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume);
void    BSP_AUDIO_IN_DeInit(void);
/* User Callbacks: user has to implement these functions in his code if they are needed. */
/* This function should be implemented by the user application.
   It is called into this driver when the current buffer is filled to prepare the next
   buffer pointer and its size. */
void    BSP_AUDIO_IN_TransferComplete_CallBack(void);
void    BSP_AUDIO_IN_HalfTransfer_CallBack(void);

/* This function is called when an Interrupt due to transfer error on or peripheral
   error occurs. */
void    BSP_AUDIO_IN_Error_CallBack(void);

/* These function can be modified in case the current settings (e.g. DMA stream)
   need to be changed for specific application needs */
void  BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef *hsai, void *Params);
void  BSP_AUDIO_IN_MspDeInit(SAI_HandleTypeDef *hsai, void *Params);

/**
  * @}
  */ 

/**
  * @}
  */ 

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* __STM32746G_DISCOVERY_AUDIO_H */

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