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Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_sai_ex.h

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+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_sai_ex.h
+  * @author  MCD Application Team
+  * @brief   Header file of SAI HAL extended module.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+/* 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) || \
+    defined(STM32L4P5xx) || defined(STM32L4Q5xx)
+
+/* 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(const SAI_HandleTypeDef *hsai,
+                                              const 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 || */
+/* STM32L4P5xx || STM32L4Q5xx */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* STM32L4xx_HAL_SAI_EX_H */
+