File content as of revision 171:3a7713b1edbc:

/**
  ******************************************************************************
  * @file    stm32l4xx_hal_sai_ex.h
  * @author  MCD Application Team
  * @brief   Header file of SAI HAL extended module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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 __STM32L4xx_HAL_SAI_EX_H
#define __STM32L4xx_HAL_SAI_EX_H

#ifdef __cplusplus
 extern "C" {
#endif

#if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx)

/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal_def.h"
   
/** @addtogroup STM32L4xx_HAL_Driver
  * @{
  */

/** @addtogroup SAIEx
  * @{
  */

/* Exported types ------------------------------------------------------------*/

/** @defgroup SAIEx_Exported_Types SAIEx Exported Types
  * @{
  */

/**
  * @brief  PDM microphone delay structure definition
  */
typedef struct
{
  uint32_t MicPair;     /*!< Specifies which pair of microphones is selected.
                             This parameter must be a number between Min_Data = 1 and Max_Data = 3. */

  uint32_t LeftDelay;   /*!< Specifies the delay in PDM clock unit to apply on left microphone.
                             This parameter must be a number between Min_Data = 0 and Max_Data = 7. */

  uint32_t RightDelay;  /*!< Specifies the delay in PDM clock unit to apply on right microphone.
                             This parameter must be a number between Min_Data = 0 and Max_Data = 7. */
}SAIEx_PdmMicDelayParamTypeDef;

/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/* Exported macros -----------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/** @addtogroup SAIEx_Exported_Functions SAIEx Extended Exported Functions
  * @{
  */

/** @addtogroup SAIEx_Exported_Functions_Group1 Peripheral Control functions
  * @{
  */

HAL_StatusTypeDef HAL_SAIEx_ConfigPdmMicDelay(SAI_HandleTypeDef *hsai, SAIEx_PdmMicDelayParamTypeDef *pdmMicDelay);

/**
  * @}
  */ 

/**
  * @}
  */ 

/* Private macros ------------------------------------------------------------*/

/** @addtogroup SAIEx_Private_Macros SAIEx Extended Private Macros
  * @{
  */

#define IS_SAI_PDM_MIC_DELAY(VALUE)   ((VALUE) <= 7U)

/**
  * @}
  */ 

/**
  * @}
  */ 

/**
  * @}
  */

#endif /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx */

#ifdef __cplusplus
}
#endif

#endif /* __STM32L4xx_HAL_SAI_EX_H */

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