SPKT
Diff: targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sai_ex.c
- Revision:
- 0:e87aa4c49e95
diff -r 000000000000 -r e87aa4c49e95 targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sai_ex.c --- /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>© 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****/