Diff: targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sai_ex.c

Revision:

0:e87aa4c49e95

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sai_ex.c	Tue Jun 04 21:51:46 2019 +0000
@@ -0,0 +1,182 @@
+/**
+  ******************************************************************************
+  * @file    stm32f7xx_hal_sai_ex.c
+  * @author  MCD Application Team
+  * @version V1.0.4
+  * @date    09-December-2015
+  * @brief   SAI Extension HAL module driver.
+  *          This file provides firmware functions to manage the following 
+  *          functionalities of SAI extension peripheral:
+  *           + Extension features functions
+  *         
+  @verbatim
+  ==============================================================================
+               ##### SAI peripheral extension features  #####
+  ==============================================================================
+   
+                     ##### How to use this driver #####
+  ==============================================================================
+  [..] This driver provides functions to manage several sources to clock SAI
+  
+  @endverbatim
+  ******************************************************************************
+  * @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.
+  *
+  ******************************************************************************
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f7xx_hal.h"
+
+/** @addtogroup STM32F7xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup SAIEx SAIEx
+  * @brief SAI Extension HAL module driver
+  * @{
+  */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* SAI registers Masks */
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup SAI_Private_Functions  SAI Private Functions
+  * @{
+  */
+ /**
+  * @}
+  */
+  
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup SAIEx_Exported_Functions SAI Extended Exported Functions
+  * @{
+  */
+
+/** @defgroup SAIEx_Exported_Functions_Group1 Extension features functions 
+  *  @brief   Extension features functions
+  *
+@verbatim    
+ ===============================================================================
+                       ##### Extension features Functions #####
+ ===============================================================================  
+    [..]
+    This subsection provides a set of functions allowing to manage the possible 
+    SAI clock sources.
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Configure SAI Block synchronization mode
+  * @param  hsai: pointer to a SAI_HandleTypeDef structure that contains
+  *               the configuration information for SAI module.   
+  * @retval SAI Clock Input 
+  */
+void SAI_BlockSynchroConfig(SAI_HandleTypeDef *hsai)
+{
+  uint32_t tmpregisterGCR = 0;
+ 
+  /* This setting must be done with both audio block (A & B) disabled     */
+  switch(hsai->Init.SynchroExt)
+  {
+    case SAI_SYNCEXT_DISABLE :
+      tmpregisterGCR = 0;
+      break;
+    case SAI_SYNCEXT_OUTBLOCKA_ENABLE :
+      tmpregisterGCR = SAI_GCR_SYNCOUT_0;
+      break;
+    case SAI_SYNCEXT_OUTBLOCKB_ENABLE :
+      tmpregisterGCR = SAI_GCR_SYNCOUT_1;
+      break;
+  default:
+    tmpregisterGCR = 0;
+    break;
+  }
+    
+  if((hsai->Init.Synchro) == SAI_SYNCHRONOUS_EXT_SAI2)
+  {
+        tmpregisterGCR |= SAI_GCR_SYNCIN_0;
+  }
+  
+  if((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B))
+  {
+    SAI1->GCR = tmpregisterGCR;
+  }
+  else 
+  {
+    SAI2->GCR = tmpregisterGCR;
+  }
+}
+  /**
+  * @brief  Get SAI Input Clock based on SAI source clock selection
+  * @param  hsai: pointer to a SAI_HandleTypeDef structure that contains
+  *               the configuration information for SAI module.   
+  * @retval SAI Clock Input 
+  */
+uint32_t SAI_GetInputClock(SAI_HandleTypeDef *hsai)   
+{
+  /* This variable used to store the SAI_CK_x (value in Hz) */
+  uint32_t saiclocksource = 0;
+
+  if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B))
+  {
+    saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI1);
+  }
+  else /* SAI2_Block_A || SAI2_Block_B*/
+  {
+    saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2); 
+  }
+  /* the return result is the value of SAI clock */
+  return saiclocksource;        
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_SAI_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/