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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_sai_ex.c@610:813dcc80987e, 2015-08-14 (annotated)

Committer:
mbed_official
Date:
Fri Aug 14 13:15:17 2015 +0100
Revision:
610:813dcc80987e
Parent:
573:ad23fe03a082 
Synchronized with git revision 6d84db41c6833e0b9b024741eb0616a5f62d5599



Full URL: https://github.com/mbedmicro/mbed/commit/6d84db41c6833e0b9b024741eb0616a5f62d5599/



DISCO_F746NG - Improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 573:ad23fe03a082 1 /**
mbed_official 573:ad23fe03a082 2 ******************************************************************************
mbed_official 573:ad23fe03a082 3 * @file stm32f7xx_hal_sai_ex.c
mbed_official 573:ad23fe03a082 4 * @author MCD Application Team
mbed_official 610:813dcc80987e 5 * @version V1.0.1
mbed_official 610:813dcc80987e 6 * @date 25-June-2015
mbed_official 573:ad23fe03a082 7 * @brief SAI Extension HAL module driver.
mbed_official 573:ad23fe03a082 8 * This file provides firmware functions to manage the following
mbed_official 573:ad23fe03a082 9 * functionalities of SAI extension peripheral:
mbed_official 573:ad23fe03a082 10 * + Extension features functions
mbed_official 573:ad23fe03a082 11 *
mbed_official 573:ad23fe03a082 12 @verbatim
mbed_official 573:ad23fe03a082 13 ==============================================================================
mbed_official 573:ad23fe03a082 14 ##### SAI peripheral extension features #####
mbed_official 573:ad23fe03a082 15 ==============================================================================
mbed_official 573:ad23fe03a082 16
mbed_official 573:ad23fe03a082 17 ##### How to use this driver #####
mbed_official 573:ad23fe03a082 18 ==============================================================================
mbed_official 573:ad23fe03a082 19 [..] This driver provides functions to manage several sources to clock SAI
mbed_official 573:ad23fe03a082 20
mbed_official 573:ad23fe03a082 21 @endverbatim
mbed_official 573:ad23fe03a082 22 ******************************************************************************
mbed_official 573:ad23fe03a082 23 * @attention
mbed_official 573:ad23fe03a082 24 *
mbed_official 573:ad23fe03a082 25 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
mbed_official 573:ad23fe03a082 26 *
mbed_official 573:ad23fe03a082 27 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 573:ad23fe03a082 28 * are permitted provided that the following conditions are met:
mbed_official 573:ad23fe03a082 29 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 573:ad23fe03a082 30 * this list of conditions and the following disclaimer.
mbed_official 573:ad23fe03a082 31 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 573:ad23fe03a082 32 * this list of conditions and the following disclaimer in the documentation
mbed_official 573:ad23fe03a082 33 * and/or other materials provided with the distribution.
mbed_official 573:ad23fe03a082 34 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 573:ad23fe03a082 35 * may be used to endorse or promote products derived from this software
mbed_official 573:ad23fe03a082 36 * without specific prior written permission.
mbed_official 573:ad23fe03a082 37 *
mbed_official 573:ad23fe03a082 38 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 573:ad23fe03a082 39 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 573:ad23fe03a082 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 573:ad23fe03a082 41 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 573:ad23fe03a082 42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 573:ad23fe03a082 43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 573:ad23fe03a082 44 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 573:ad23fe03a082 45 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 573:ad23fe03a082 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 573:ad23fe03a082 47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 573:ad23fe03a082 48 *
mbed_official 573:ad23fe03a082 49 ******************************************************************************
mbed_official 573:ad23fe03a082 50 */
mbed_official 573:ad23fe03a082 51
mbed_official 573:ad23fe03a082 52 /* Includes ------------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 53 #include "stm32f7xx_hal.h"
mbed_official 573:ad23fe03a082 54
mbed_official 573:ad23fe03a082 55 /** @addtogroup STM32F7xx_HAL_Driver
mbed_official 573:ad23fe03a082 56 * @{
mbed_official 573:ad23fe03a082 57 */
mbed_official 573:ad23fe03a082 58
mbed_official 573:ad23fe03a082 59 /** @defgroup SAIEx SAIEx
mbed_official 573:ad23fe03a082 60 * @brief SAI Extension HAL module driver
mbed_official 573:ad23fe03a082 61 * @{
mbed_official 573:ad23fe03a082 62 */
mbed_official 573:ad23fe03a082 63
mbed_official 573:ad23fe03a082 64 #ifdef HAL_SAI_MODULE_ENABLED
mbed_official 573:ad23fe03a082 65
mbed_official 573:ad23fe03a082 66 /* Private typedef -----------------------------------------------------------*/
mbed_official 573:ad23fe03a082 67 /* Private define ------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 68 /* SAI registers Masks */
mbed_official 573:ad23fe03a082 69 /* Private macro -------------------------------------------------------------*/
mbed_official 573:ad23fe03a082 70 /* Private variables ---------------------------------------------------------*/
mbed_official 573:ad23fe03a082 71 /* Private function prototypes -----------------------------------------------*/
mbed_official 573:ad23fe03a082 72 /* Private functions ---------------------------------------------------------*/
mbed_official 573:ad23fe03a082 73
mbed_official 573:ad23fe03a082 74 /** @defgroup SAI_Private_Functions SAI Private Functions
mbed_official 573:ad23fe03a082 75 * @{
mbed_official 573:ad23fe03a082 76 */
mbed_official 573:ad23fe03a082 77 /**
mbed_official 573:ad23fe03a082 78 * @}
mbed_official 573:ad23fe03a082 79 */
mbed_official 573:ad23fe03a082 80
mbed_official 573:ad23fe03a082 81 /* Exported functions --------------------------------------------------------*/
mbed_official 573:ad23fe03a082 82 /** @defgroup SAIEx_Exported_Functions SAI Extended Exported Functions
mbed_official 573:ad23fe03a082 83 * @{
mbed_official 573:ad23fe03a082 84 */
mbed_official 573:ad23fe03a082 85
mbed_official 573:ad23fe03a082 86 /** @defgroup SAIEx_Exported_Functions_Group1 Extension features functions
mbed_official 573:ad23fe03a082 87 * @brief Extension features functions
mbed_official 573:ad23fe03a082 88 *
mbed_official 573:ad23fe03a082 89 @verbatim
mbed_official 573:ad23fe03a082 90 ===============================================================================
mbed_official 573:ad23fe03a082 91 ##### Extension features Functions #####
mbed_official 573:ad23fe03a082 92 ===============================================================================
mbed_official 573:ad23fe03a082 93 [..]
mbed_official 573:ad23fe03a082 94 This subsection provides a set of functions allowing to manage the possible
mbed_official 573:ad23fe03a082 95 SAI clock sources.
mbed_official 573:ad23fe03a082 96
mbed_official 573:ad23fe03a082 97 @endverbatim
mbed_official 573:ad23fe03a082 98 * @{
mbed_official 573:ad23fe03a082 99 */
mbed_official 573:ad23fe03a082 100
mbed_official 573:ad23fe03a082 101 /**
mbed_official 573:ad23fe03a082 102 * @brief Configure SAI Block synchronization mode
mbed_official 573:ad23fe03a082 103 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 104 * the configuration information for SAI module.
mbed_official 573:ad23fe03a082 105 * @retval SAI Clock Input
mbed_official 573:ad23fe03a082 106 */
mbed_official 573:ad23fe03a082 107 void SAI_BlockSynchroConfig(SAI_HandleTypeDef *hsai)
mbed_official 573:ad23fe03a082 108 {
mbed_official 573:ad23fe03a082 109 uint32_t tmpregisterGCR = 0;
mbed_official 573:ad23fe03a082 110
mbed_official 573:ad23fe03a082 111 /* This setting must be done with both audio block (A & B) disabled */
mbed_official 573:ad23fe03a082 112 switch(hsai->Init.SynchroExt)
mbed_official 573:ad23fe03a082 113 {
mbed_official 573:ad23fe03a082 114 case SAI_SYNCEXT_DISABLE :
mbed_official 573:ad23fe03a082 115 tmpregisterGCR = 0;
mbed_official 573:ad23fe03a082 116 break;
mbed_official 573:ad23fe03a082 117 case SAI_SYNCEXT_IN_ENABLE :
mbed_official 573:ad23fe03a082 118 tmpregisterGCR = SAI_GCR_SYNCIN_0;
mbed_official 573:ad23fe03a082 119 break;
mbed_official 573:ad23fe03a082 120 case SAI_SYNCEXT_OUTBLOCKA_ENABLE :
mbed_official 573:ad23fe03a082 121 tmpregisterGCR = SAI_GCR_SYNCOUT_0;
mbed_official 573:ad23fe03a082 122 break;
mbed_official 573:ad23fe03a082 123 case SAI_SYNCEXT_OUTBLOCKB_ENABLE :
mbed_official 573:ad23fe03a082 124 tmpregisterGCR = SAI_GCR_SYNCOUT_1;
mbed_official 573:ad23fe03a082 125 break;
mbed_official 573:ad23fe03a082 126 default :
mbed_official 573:ad23fe03a082 127 break;
mbed_official 573:ad23fe03a082 128 }
mbed_official 573:ad23fe03a082 129
mbed_official 573:ad23fe03a082 130 if((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B))
mbed_official 573:ad23fe03a082 131 {
mbed_official 573:ad23fe03a082 132 SAI1->GCR = tmpregisterGCR;
mbed_official 573:ad23fe03a082 133 }
mbed_official 573:ad23fe03a082 134 else
mbed_official 573:ad23fe03a082 135 {
mbed_official 573:ad23fe03a082 136 SAI2->GCR = tmpregisterGCR;
mbed_official 573:ad23fe03a082 137 }
mbed_official 573:ad23fe03a082 138 }
mbed_official 573:ad23fe03a082 139 /**
mbed_official 573:ad23fe03a082 140 * @brief Get SAI Input Clock based on SAI source clock selection
mbed_official 573:ad23fe03a082 141 * @param hsai: pointer to a SAI_HandleTypeDef structure that contains
mbed_official 573:ad23fe03a082 142 * the configuration information for SAI module.
mbed_official 573:ad23fe03a082 143 * @retval SAI Clock Input
mbed_official 573:ad23fe03a082 144 */
mbed_official 573:ad23fe03a082 145 uint32_t SAI_GetInputClock(SAI_HandleTypeDef *hsai)
mbed_official 573:ad23fe03a082 146 {
mbed_official 573:ad23fe03a082 147 /* This variable used to store the SAI_CK_x (value in Hz) */
mbed_official 573:ad23fe03a082 148 uint32_t saiclocksource = 0;
mbed_official 573:ad23fe03a082 149
mbed_official 573:ad23fe03a082 150 if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B))
mbed_official 573:ad23fe03a082 151 {
mbed_official 573:ad23fe03a082 152 saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI1);
mbed_official 573:ad23fe03a082 153 }
mbed_official 573:ad23fe03a082 154 else /* SAI2_Block_A || SAI2_Block_B*/
mbed_official 573:ad23fe03a082 155 {
mbed_official 573:ad23fe03a082 156 saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2);
mbed_official 573:ad23fe03a082 157 }
mbed_official 573:ad23fe03a082 158 /* the return result is the value of SAI clock */
mbed_official 573:ad23fe03a082 159 return saiclocksource;
mbed_official 573:ad23fe03a082 160 }
mbed_official 573:ad23fe03a082 161
mbed_official 573:ad23fe03a082 162 /**
mbed_official 573:ad23fe03a082 163 * @}
mbed_official 573:ad23fe03a082 164 */
mbed_official 573:ad23fe03a082 165
mbed_official 573:ad23fe03a082 166 /**
mbed_official 573:ad23fe03a082 167 * @}
mbed_official 573:ad23fe03a082 168 */
mbed_official 573:ad23fe03a082 169
mbed_official 573:ad23fe03a082 170 #endif /* HAL_SAI_MODULE_ENABLED */
mbed_official 573:ad23fe03a082 171 /**
mbed_official 573:ad23fe03a082 172 * @}
mbed_official 573:ad23fe03a082 173 */
mbed_official 573:ad23fe03a082 174
mbed_official 573:ad23fe03a082 175 /**
mbed_official 573:ad23fe03a082 176 * @}
mbed_official 573:ad23fe03a082 177 */
mbed_official 573:ad23fe03a082 178
mbed_official 573:ad23fe03a082 179 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/