/** | |
****************************************************************************** | |
* @file stm32f7xx_hal_sai_ex.c | |
* @author MCD Application Team | |
* @version V1.0.0 | |
* @date 12-May-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>© 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_IN_ENABLE : | |
tmpregisterGCR = SAI_GCR_SYNCIN_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 : | |
break; | |
} | |
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****/ |