From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c | 1125 ++++++++++++++++++++ 1 file changed, 1125 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c new file mode 100644 index 0000000..e9fd0b4 --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_sram.c @@ -0,0 +1,1125 @@ +/** + ****************************************************************************** + * @file stm32h7xx_hal_sram.c + * @author MCD Application Team + * @brief SRAM HAL module driver. + * This file provides a generic firmware to drive SRAM memories + * mounted as external device. + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + This driver is a generic layered driver which contains a set of APIs used to + control SRAM memories. It uses the FMC layer functions to interface + with SRAM devices. + The following sequence should be followed to configure the FMC to interface + with SRAM/PSRAM memories: + + (#) Declare a SRAM_HandleTypeDef handle structure, for example: + SRAM_HandleTypeDef hsram; and: + + (++) Fill the SRAM_HandleTypeDef handle "Init" field with the allowed + values of the structure member. + + (++) Fill the SRAM_HandleTypeDef handle "Instance" field with a predefined + base register instance for NOR or SRAM device + + (++) Fill the SRAM_HandleTypeDef handle "Extended" field with a predefined + base register instance for NOR or SRAM extended mode + + (#) Declare two FMC_NORSRAM_TimingTypeDef structures, for both normal and extended + mode timings; for example: + FMC_NORSRAM_TimingTypeDef Timing and FMC_NORSRAM_TimingTypeDef ExTiming; + and fill its fields with the allowed values of the structure member. + + (#) Initialize the SRAM Controller by calling the function HAL_SRAM_Init(). This function + performs the following sequence: + + (##) MSP hardware layer configuration using the function HAL_SRAM_MspInit() + (##) Control register configuration using the FMC NORSRAM interface function + FMC_NORSRAM_Init() + (##) Timing register configuration using the FMC NORSRAM interface function + FMC_NORSRAM_Timing_Init() + (##) Extended mode Timing register configuration using the FMC NORSRAM interface function + FMC_NORSRAM_Extended_Timing_Init() + (##) Enable the SRAM device using the macro __FMC_NORSRAM_ENABLE() + + (#) At this stage you can perform read/write accesses from/to the memory connected + to the NOR/SRAM Bank. You can perform either polling or DMA transfer using the + following APIs: + (++) HAL_SRAM_Read()/HAL_SRAM_Write() for polling read/write access + (++) HAL_SRAM_Read_DMA()/HAL_SRAM_Write_DMA() for DMA read/write transfer + + (#) You can also control the SRAM device by calling the control APIs HAL_SRAM_WriteOperation_Enable()/ + HAL_SRAM_WriteOperation_Disable() to respectively enable/disable the SRAM write operation + + (#) You can continuously monitor the SRAM device HAL state by calling the function + HAL_SRAM_GetState() + + *** Callback registration *** + ============================================= + [..] + The compilation define USE_HAL_SRAM_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + + Use Functions HAL_SRAM_RegisterCallback() to register a user callback, + it allows to register following callbacks: + (+) MspInitCallback : SRAM MspInit. + (+) MspDeInitCallback : SRAM MspDeInit. + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + Use function HAL_SRAM_UnRegisterCallback() to reset a callback to the default + weak (surcharged) function. It allows to reset following callbacks: + (+) MspInitCallback : SRAM MspInit. + (+) MspDeInitCallback : SRAM MspDeInit. + This function) takes as parameters the HAL peripheral handle and the Callback ID. + + By default, after the HAL_SRAM_Init and if the state is HAL_SRAM_STATE_RESET + all callbacks are reset to the corresponding legacy weak (surcharged) functions. + Exception done for MspInit and MspDeInit callbacks that are respectively + reset to the legacy weak (surcharged) functions in the HAL_SRAM_Init + and HAL_SRAM_DeInit only when these callbacks are null (not registered beforehand). + If not, MspInit or MspDeInit are not null, the HAL_SRAM_Init and HAL_SRAM_DeInit + keep and use the user MspInit/MspDeInit callbacks (registered beforehand) + + Callbacks can be registered/unregistered in READY state only. + Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered + in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used + during the Init/DeInit. + In that case first register the MspInit/MspDeInit user callbacks + using HAL_SRAM_RegisterCallback before calling HAL_SRAM_DeInit + or HAL_SRAM_Init function. + + When The compilation define USE_HAL_SRAM_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registering feature is not available + and weak (surcharged) callbacks are used. + + @endverbatim + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +#ifdef HAL_SRAM_MODULE_ENABLED + +/** @defgroup SRAM SRAM + * @brief SRAM driver modules + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup SRAM_Private_Functions SRAM Private Functions + * @{ + */ +static void SRAM_DMACplt(MDMA_HandleTypeDef *hmdma); +static void SRAM_DMACpltProt(MDMA_HandleTypeDef *hmdma); +static void SRAM_DMAError(MDMA_HandleTypeDef *hmdma); +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup SRAM_Exported_Functions SRAM Exported Functions + * @{ + */ + +/** @defgroup SRAM_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions. + * + @verbatim + ============================================================================== + ##### SRAM Initialization and de_initialization functions ##### + ============================================================================== + [..] This section provides functions allowing to initialize/de-initialize + the SRAM memory + +@endverbatim + * @{ + */ + +/** + * @brief Performs the SRAM device initialization sequence + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param Timing Pointer to SRAM control timing structure + * @param ExtTiming Pointer to SRAM extended mode timing structure + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Init(SRAM_HandleTypeDef *hsram, FMC_NORSRAM_TimingTypeDef *Timing, + FMC_NORSRAM_TimingTypeDef *ExtTiming) +{ + /* Check the SRAM handle parameter */ + if (hsram == NULL) + { + return HAL_ERROR; + } + + if (hsram->State == HAL_SRAM_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hsram->Lock = HAL_UNLOCKED; + +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) + if (hsram->MspInitCallback == NULL) + { + hsram->MspInitCallback = HAL_SRAM_MspInit; + } + hsram->DmaXferCpltCallback = HAL_SRAM_DMA_XferCpltCallback; + hsram->DmaXferErrorCallback = HAL_SRAM_DMA_XferErrorCallback; + + /* Init the low level hardware */ + hsram->MspInitCallback(hsram); +#else + /* Initialize the low level hardware (MSP) */ + HAL_SRAM_MspInit(hsram); +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ + } + + /* Initialize SRAM control Interface */ + (void)FMC_NORSRAM_Init(hsram->Instance, &(hsram->Init)); + + /* Initialize SRAM timing Interface */ + (void)FMC_NORSRAM_Timing_Init(hsram->Instance, Timing, hsram->Init.NSBank); + + /* Initialize SRAM extended mode timing Interface */ + (void)FMC_NORSRAM_Extended_Timing_Init(hsram->Extended, ExtTiming, hsram->Init.NSBank, + hsram->Init.ExtendedMode); + + /* Enable the NORSRAM device */ + __FMC_NORSRAM_ENABLE(hsram->Instance, hsram->Init.NSBank); + + /* Enable FMC Peripheral */ + __FMC_ENABLE(); + + /* Initialize the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Performs the SRAM device De-initialization sequence. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_DeInit(SRAM_HandleTypeDef *hsram) +{ +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) + if (hsram->MspDeInitCallback == NULL) + { + hsram->MspDeInitCallback = HAL_SRAM_MspDeInit; + } + + /* DeInit the low level hardware */ + hsram->MspDeInitCallback(hsram); +#else + /* De-Initialize the low level hardware (MSP) */ + HAL_SRAM_MspDeInit(hsram); +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ + + /* Configure the SRAM registers with their reset values */ + (void)FMC_NORSRAM_DeInit(hsram->Instance, hsram->Extended, hsram->Init.NSBank); + + /* Reset the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_RESET; + + /* Release Lock */ + __HAL_UNLOCK(hsram); + + return HAL_OK; +} + +/** + * @brief SRAM MSP Init. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval None + */ +__weak void HAL_SRAM_MspInit(SRAM_HandleTypeDef *hsram) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsram); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SRAM_MspInit could be implemented in the user file + */ +} + +/** + * @brief SRAM MSP DeInit. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval None + */ +__weak void HAL_SRAM_MspDeInit(SRAM_HandleTypeDef *hsram) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hsram); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SRAM_MspDeInit could be implemented in the user file + */ +} + +/** + * @brief DMA transfer complete callback. + * @param hmdma pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval None + */ +__weak void HAL_SRAM_DMA_XferCpltCallback(MDMA_HandleTypeDef *hmdma) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hmdma); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SRAM_DMA_XferCpltCallback could be implemented in the user file + */ +} + +/** + * @brief DMA transfer complete error callback. + * @param hmdma pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval None + */ +__weak void HAL_SRAM_DMA_XferErrorCallback(MDMA_HandleTypeDef *hmdma) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(hmdma); + + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_SRAM_DMA_XferErrorCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup SRAM_Exported_Functions_Group2 Input Output and memory control functions + * @brief Input Output and memory control functions + * + @verbatim + ============================================================================== + ##### SRAM Input and Output functions ##### + ============================================================================== + [..] + This section provides functions allowing to use and control the SRAM memory + +@endverbatim + * @{ + */ + +/** + * @brief Reads 8-bit buffer from SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to read start address + * @param pDstBuffer Pointer to destination buffer + * @param BufferSize Size of the buffer to read from memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Read_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pDstBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint8_t *psramaddress = (uint8_t *)pAddress; + uint8_t *pdestbuff = pDstBuffer; + HAL_SRAM_StateTypeDef state = hsram->State; + + /* Check the SRAM controller state */ + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Read data from memory */ + for (size = BufferSize; size != 0U; size--) + { + *pdestbuff = *psramaddress; + pdestbuff++; + psramaddress++; + } + + /* Update the SRAM controller state */ + hsram->State = state; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Writes 8-bit buffer to SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to write start address + * @param pSrcBuffer Pointer to source buffer to write + * @param BufferSize Size of the buffer to write to memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Write_8b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint8_t *pSrcBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint8_t *psramaddress = (uint8_t *)pAddress; + uint8_t *psrcbuff = pSrcBuffer; + + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Write data to memory */ + for (size = BufferSize; size != 0U; size--) + { + *psramaddress = *psrcbuff; + psrcbuff++; + psramaddress++; + } + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Reads 16-bit buffer from SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to read start address + * @param pDstBuffer Pointer to destination buffer + * @param BufferSize Size of the buffer to read from memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Read_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pDstBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint32_t *psramaddress = pAddress; + uint16_t *pdestbuff = pDstBuffer; + uint8_t limit; + HAL_SRAM_StateTypeDef state = hsram->State; + + /* Check the SRAM controller state */ + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Check if the size is a 32-bits multiple */ + limit = (((BufferSize % 2U) != 0U) ? 1U : 0U); + + /* Read data from memory */ + for (size = BufferSize; size != limit; size -= 2U) + { + *pdestbuff = (uint16_t)((*psramaddress) & 0x0000FFFFU); + pdestbuff++; + *pdestbuff = (uint16_t)(((*psramaddress) & 0xFFFF0000U) >> 16U); + pdestbuff++; + psramaddress++; + } + + /* Read last 16-bits if size is not 32-bits multiple */ + if (limit != 0U) + { + *pdestbuff = (uint16_t)((*psramaddress) & 0x0000FFFFU); + } + + /* Update the SRAM controller state */ + hsram->State = state; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Writes 16-bit buffer to SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to write start address + * @param pSrcBuffer Pointer to source buffer to write + * @param BufferSize Size of the buffer to write to memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Write_16b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint16_t *pSrcBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint32_t *psramaddress = pAddress; + uint16_t *psrcbuff = pSrcBuffer; + uint8_t limit; + + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Check if the size is a 32-bits multiple */ + limit = (((BufferSize % 2U) != 0U) ? 1U : 0U); + + /* Write data to memory */ + for (size = BufferSize; size != limit; size -= 2U) + { + *psramaddress = (uint32_t)(*psrcbuff); + psrcbuff++; + *psramaddress |= ((uint32_t)(*psrcbuff) << 16U); + psrcbuff++; + psramaddress++; + } + + /* Write last 16-bits if size is not 32-bits multiple */ + if (limit != 0U) + { + *psramaddress = ((uint32_t)(*psrcbuff) & 0x0000FFFFU) | ((*psramaddress) & 0xFFFF0000U); + } + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Reads 32-bit buffer from SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to read start address + * @param pDstBuffer Pointer to destination buffer + * @param BufferSize Size of the buffer to read from memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Read_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint32_t *psramaddress = pAddress; + uint32_t *pdestbuff = pDstBuffer; + HAL_SRAM_StateTypeDef state = hsram->State; + + /* Check the SRAM controller state */ + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Read data from memory */ + for (size = BufferSize; size != 0U; size--) + { + *pdestbuff = *psramaddress; + pdestbuff++; + psramaddress++; + } + + /* Update the SRAM controller state */ + hsram->State = state; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Writes 32-bit buffer to SRAM memory. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to write start address + * @param pSrcBuffer Pointer to source buffer to write + * @param BufferSize Size of the buffer to write to memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Write_32b(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, + uint32_t BufferSize) +{ + uint32_t size; + __IO uint32_t *psramaddress = pAddress; + uint32_t *psrcbuff = pSrcBuffer; + + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Write data to memory */ + for (size = BufferSize; size != 0U; size--) + { + *psramaddress = *psrcbuff; + psrcbuff++; + psramaddress++; + } + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Reads a Words data from the SRAM memory using DMA transfer. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to read start address + * @param pDstBuffer Pointer to destination buffer + * @param BufferSize Size of the buffer to read from memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Read_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pDstBuffer, + uint32_t BufferSize) +{ + HAL_StatusTypeDef status; + HAL_SRAM_StateTypeDef state = hsram->State; + + /* Check the SRAM controller state */ + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Configure DMA user callbacks */ + if (state == HAL_SRAM_STATE_READY) + { + hsram->hmdma->XferCpltCallback = SRAM_DMACplt; + } + else + { + hsram->hmdma->XferCpltCallback = SRAM_DMACpltProt; + } + hsram->hmdma->XferErrorCallback = SRAM_DMAError; + + /* Enable the DMA Stream */ + status = HAL_MDMA_Start_IT(hsram->hmdma, (uint32_t)pAddress, (uint32_t)pDstBuffer, (uint32_t)(BufferSize * 4U), 1); + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + status = HAL_ERROR; + } + + return status; +} + +/** + * @brief Writes a Words data buffer to SRAM memory using DMA transfer. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @param pAddress Pointer to write start address + * @param pSrcBuffer Pointer to source buffer to write + * @param BufferSize Size of the buffer to write to memory + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_Write_DMA(SRAM_HandleTypeDef *hsram, uint32_t *pAddress, uint32_t *pSrcBuffer, + uint32_t BufferSize) +{ + HAL_StatusTypeDef status; + + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Configure DMA user callbacks */ + hsram->hmdma->XferCpltCallback = SRAM_DMACplt; + hsram->hmdma->XferErrorCallback = SRAM_DMAError; + + /* Enable the DMA Stream */ + status = HAL_MDMA_Start_IT(hsram->hmdma, (uint32_t)pSrcBuffer, (uint32_t)pAddress, (uint32_t)(BufferSize * 4U), 1); + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + status = HAL_ERROR; + } + + return status; +} + +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) +/** + * @brief Register a User SRAM Callback + * To be used instead of the weak (surcharged) predefined callback + * @param hsram : SRAM handle + * @param CallbackId : ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_SRAM_MSP_INIT_CB_ID SRAM MspInit callback ID + * @arg @ref HAL_SRAM_MSP_DEINIT_CB_ID SRAM MspDeInit callback ID + * @param pCallback : pointer to the Callback function + * @retval status + */ +HAL_StatusTypeDef HAL_SRAM_RegisterCallback(SRAM_HandleTypeDef *hsram, HAL_SRAM_CallbackIDTypeDef CallbackId, + pSRAM_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + HAL_SRAM_StateTypeDef state; + + if (pCallback == NULL) + { + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(hsram); + + state = hsram->State; + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_RESET) || (state == HAL_SRAM_STATE_PROTECTED)) + { + switch (CallbackId) + { + case HAL_SRAM_MSP_INIT_CB_ID : + hsram->MspInitCallback = pCallback; + break; + case HAL_SRAM_MSP_DEINIT_CB_ID : + hsram->MspDeInitCallback = pCallback; + break; + default : + /* update return status */ + status = HAL_ERROR; + break; + } + } + else + { + /* update return status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hsram); + return status; +} + +/** + * @brief Unregister a User SRAM Callback + * SRAM Callback is redirected to the weak (surcharged) predefined callback + * @param hsram : SRAM handle + * @param CallbackId : ID of the callback to be unregistered + * This parameter can be one of the following values: + * @arg @ref HAL_SRAM_MSP_INIT_CB_ID SRAM MspInit callback ID + * @arg @ref HAL_SRAM_MSP_DEINIT_CB_ID SRAM MspDeInit callback ID + * @arg @ref HAL_SRAM_DMA_XFER_CPLT_CB_ID SRAM DMA Xfer Complete callback ID + * @arg @ref HAL_SRAM_DMA_XFER_ERR_CB_ID SRAM DMA Xfer Error callback ID + * @retval status + */ +HAL_StatusTypeDef HAL_SRAM_UnRegisterCallback(SRAM_HandleTypeDef *hsram, HAL_SRAM_CallbackIDTypeDef CallbackId) +{ + HAL_StatusTypeDef status = HAL_OK; + HAL_SRAM_StateTypeDef state; + + /* Process locked */ + __HAL_LOCK(hsram); + + state = hsram->State; + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + switch (CallbackId) + { + case HAL_SRAM_MSP_INIT_CB_ID : + hsram->MspInitCallback = HAL_SRAM_MspInit; + break; + case HAL_SRAM_MSP_DEINIT_CB_ID : + hsram->MspDeInitCallback = HAL_SRAM_MspDeInit; + break; + case HAL_SRAM_DMA_XFER_CPLT_CB_ID : + hsram->DmaXferCpltCallback = HAL_SRAM_DMA_XferCpltCallback; + break; + case HAL_SRAM_DMA_XFER_ERR_CB_ID : + hsram->DmaXferErrorCallback = HAL_SRAM_DMA_XferErrorCallback; + break; + default : + /* update return status */ + status = HAL_ERROR; + break; + } + } + else if (state == HAL_SRAM_STATE_RESET) + { + switch (CallbackId) + { + case HAL_SRAM_MSP_INIT_CB_ID : + hsram->MspInitCallback = HAL_SRAM_MspInit; + break; + case HAL_SRAM_MSP_DEINIT_CB_ID : + hsram->MspDeInitCallback = HAL_SRAM_MspDeInit; + break; + default : + /* update return status */ + status = HAL_ERROR; + break; + } + } + else + { + /* update return status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hsram); + return status; +} + +/** + * @brief Register a User SRAM Callback for DMA transfers + * To be used instead of the weak (surcharged) predefined callback + * @param hsram : SRAM handle + * @param CallbackId : ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_SRAM_DMA_XFER_CPLT_CB_ID SRAM DMA Xfer Complete callback ID + * @arg @ref HAL_SRAM_DMA_XFER_ERR_CB_ID SRAM DMA Xfer Error callback ID + * @param pCallback : pointer to the Callback function + * @retval status + */ +HAL_StatusTypeDef HAL_SRAM_RegisterDmaCallback(SRAM_HandleTypeDef *hsram, HAL_SRAM_CallbackIDTypeDef CallbackId, + pSRAM_DmaCallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + HAL_SRAM_StateTypeDef state; + + if (pCallback == NULL) + { + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(hsram); + + state = hsram->State; + if ((state == HAL_SRAM_STATE_READY) || (state == HAL_SRAM_STATE_PROTECTED)) + { + switch (CallbackId) + { + case HAL_SRAM_DMA_XFER_CPLT_CB_ID : + hsram->DmaXferCpltCallback = pCallback; + break; + case HAL_SRAM_DMA_XFER_ERR_CB_ID : + hsram->DmaXferErrorCallback = pCallback; + break; + default : + /* update return status */ + status = HAL_ERROR; + break; + } + } + else + { + /* update return status */ + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(hsram); + return status; +} +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ + +/** + * @} + */ + +/** @defgroup SRAM_Exported_Functions_Group3 Control functions + * @brief Control functions + * +@verbatim + ============================================================================== + ##### SRAM Control functions ##### + ============================================================================== + [..] + This subsection provides a set of functions allowing to control dynamically + the SRAM interface. + +@endverbatim + * @{ + */ + +/** + * @brief Enables dynamically SRAM write operation. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_WriteOperation_Enable(SRAM_HandleTypeDef *hsram) +{ + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_PROTECTED) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Enable write operation */ + (void)FMC_NORSRAM_WriteOperation_Enable(hsram->Instance, hsram->Init.NSBank); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief Disables dynamically SRAM write operation. + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_SRAM_WriteOperation_Disable(SRAM_HandleTypeDef *hsram) +{ + /* Check the SRAM controller state */ + if (hsram->State == HAL_SRAM_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(hsram); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_BUSY; + + /* Disable write operation */ + (void)FMC_NORSRAM_WriteOperation_Disable(hsram->Instance, hsram->Init.NSBank); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_PROTECTED; + + /* Process unlocked */ + __HAL_UNLOCK(hsram); + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup SRAM_Exported_Functions_Group4 Peripheral State functions + * @brief Peripheral State functions + * +@verbatim + ============================================================================== + ##### SRAM State functions ##### + ============================================================================== + [..] + This subsection permits to get in run-time the status of the SRAM controller + and the data flow. + +@endverbatim + * @{ + */ + +/** + * @brief Returns the SRAM controller state + * @param hsram pointer to a SRAM_HandleTypeDef structure that contains + * the configuration information for SRAM module. + * @retval HAL state + */ +HAL_SRAM_StateTypeDef HAL_SRAM_GetState(SRAM_HandleTypeDef *hsram) +{ + return hsram->State; +} + +/** + * @} + */ + +/** + * @} + */ + +/** @addtogroup SRAM_Private_Functions SRAM Private Functions + * @{ + */ + +/** + * @brief MDMA SRAM process complete callback. + * @param hmdma : MDMA handle + * @retval None + */ +static void SRAM_DMACplt(MDMA_HandleTypeDef *hmdma) +{ + SRAM_HandleTypeDef *hsram = (SRAM_HandleTypeDef *)(hmdma->Parent); + + /* Disable the MDMA channel */ + __HAL_MDMA_DISABLE(hmdma); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_READY; + +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) + hsram->DmaXferCpltCallback(hmdma); +#else + HAL_SRAM_DMA_XferCpltCallback(hmdma); +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ +} + +/** + * @brief MDMA SRAM process complete callback. + * @param hmdma : MDMA handle + * @retval None + */ +static void SRAM_DMACpltProt(MDMA_HandleTypeDef *hmdma) +{ + SRAM_HandleTypeDef *hsram = (SRAM_HandleTypeDef *)(hmdma->Parent); + + /* Disable the MDMA channel */ + __HAL_MDMA_DISABLE(hmdma); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_PROTECTED; + +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) + hsram->DmaXferCpltCallback(hmdma); +#else + HAL_SRAM_DMA_XferCpltCallback(hmdma); +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ +} + +/** + * @brief MDMA SRAM error callback. + * @param hmdma : MDMA handle + * @retval None + */ +static void SRAM_DMAError(MDMA_HandleTypeDef *hmdma) +{ + SRAM_HandleTypeDef *hsram = (SRAM_HandleTypeDef *)(hmdma->Parent); + + /* Disable the MDMA channel */ + __HAL_MDMA_DISABLE(hmdma); + + /* Update the SRAM controller state */ + hsram->State = HAL_SRAM_STATE_ERROR; + +#if (USE_HAL_SRAM_REGISTER_CALLBACKS == 1) + hsram->DmaXferErrorCallback(hmdma); +#else + HAL_SRAM_DMA_XferErrorCallback(hmdma); +#endif /* USE_HAL_SRAM_REGISTER_CALLBACKS */ +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_SRAM_MODULE_ENABLED */ + +/** + * @} + */ + -- cgit v1.2.3