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view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai_ex.c @ 129:239aa58b533d FlipDisplay
Added function to initialise structures with the actual ambient pressure
author | Ideenmodellierer |
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date | Sun, 17 Feb 2019 21:14:09 +0100 |
parents | c78bcbd5deda |
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/** ****************************************************************************** * @file stm32f4xx_hal_sai_ex.c * @author MCD Application Team * @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 ##### ============================================================================== [..] Comparing to other previous devices, the SAI interface for STM32F446xx devices contains the following additional features : (+) Possibility to be clocked from PLLR ##### How to use this driver ##### ============================================================================== [..] This driver provides functions to manage several sources to clock SAI @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 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 "stm32f4xx_hal.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup SAIEx SAIEx * @brief SAI Extension HAL module driver * @{ */ #ifdef HAL_SAI_MODULE_ENABLED #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || \ defined(STM32F423xx) /* 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 = 0U; #if defined(STM32F446xx) /* This setting must be done with both audio block (A & B) disabled */ switch(hsai->Init.SynchroExt) { case SAI_SYNCEXT_DISABLE : tmpregisterGCR = 0U; 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->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; } #endif /* STM32F446xx */ #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) /* This setting must be done with both audio block (A & B) disabled */ switch(hsai->Init.SynchroExt) { case SAI_SYNCEXT_DISABLE : tmpregisterGCR = 0U; 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; } SAI1->GCR = tmpregisterGCR; #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ } /** * @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 = 0U; #if defined(STM32F446xx) 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); } #endif /* STM32F446xx */ #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) uint32_t vcoinput = 0U, tmpreg = 0U; /* Check the SAI Block parameters */ assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource)); /* SAI Block clock source selection */ if(hsai->Instance == SAI1_Block_A) { __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource); } else { __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2U)); } /* VCO Input Clock value calculation */ if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI) { /* In Case the PLL Source is HSI (Internal Clock) */ vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)); } else { /* In Case the PLL Source is HSE (External Clock) */ vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM))); } #if defined(STM32F413xx) || defined(STM32F423xx) /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLR) { /* Configure the PLLI2S division factor */ /* PLL_VCO Input = PLL_SOURCE/PLLM */ /* PLL_VCO Output = PLL_VCO Input * PLLN */ /* SAI_CLK(first level) = PLL_VCO Output/PLLR */ tmpreg = (RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U; saiclocksource = (vcoinput * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U))/(tmpreg); /* SAI_CLK_x = SAI_CLK(first level)/PLLDIVR */ tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLDIVR) >> 8U) + 1U); saiclocksource = saiclocksource/(tmpreg); } else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) { /* Configure the PLLI2S division factor */ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SR */ tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U; saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVR */ tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVR) + 1U); saiclocksource = saiclocksource/(tmpreg); } else if(hsai->Init.ClockSource == SAI_CLKSOURCE_HS) { if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE) { /* Get the I2S source clock value */ saiclocksource = (uint32_t)(HSE_VALUE); } else { /* Get the I2S source clock value */ saiclocksource = (uint32_t)(HSI_VALUE); } } else /* sConfig->ClockSource == SAI_CLKSource_Ext */ { saiclocksource = EXTERNAL_CLOCK_VALUE; } #else /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI) { /* Configure the PLLI2S division factor */ /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */ tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24U; saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6U))/(tmpreg); /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */ tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8U) + 1U); saiclocksource = saiclocksource/(tmpreg); } else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) { /* Configure the PLLI2S division factor */ /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */ tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24U; saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */ tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1U); saiclocksource = saiclocksource/(tmpreg); } else /* sConfig->ClockSource == SAI_CLKSource_Ext */ { /* Enable the External Clock selection */ __HAL_RCC_I2S_CONFIG(RCC_I2SCLKSOURCE_EXT); saiclocksource = EXTERNAL_CLOCK_VALUE; } #endif /* STM32F413xx || STM32F423xx */ #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ /* the return result is the value of SAI clock */ return saiclocksource; } /** * @} */ /** * @} */ #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ #endif /* HAL_SAI_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/