diff options
Diffstat (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c')
| -rw-r--r-- | Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c | 505 |
1 files changed, 505 insertions, 0 deletions
diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c new file mode 100644 index 0000000..dfeed49 --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_sdmmc.c @@ -0,0 +1,505 @@ +/**
+ ******************************************************************************
+ * @file stm32f4xx_ll_sdmmc.c
+ * @author MCD Application Team
+ * @version V1.3.2
+ * @date 26-June-2015
+ * @brief SDMMC Low Layer HAL module driver.
+ *
+ * This file provides firmware functions to manage the following
+ * functionalities of the SDMMC peripheral:
+ * + Initialization/de-initialization functions
+ * + I/O operation functions
+ * + Peripheral Control functions
+ * + Peripheral State functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### SDMMC peripheral features #####
+ ==============================================================================
+ [..] The SD/SDIO MMC card host interface (SDIO) provides an interface between the APB2
+ peripheral bus and MultiMedia cards (MMCs), SD memory cards, SDIO cards and CE-ATA
+ devices.
+
+ [..] The SDIO features include the following:
+ (+) Full compliance with MultiMedia Card System Specification Version 4.2. Card support
+ for three different databus modes: 1-bit (default), 4-bit and 8-bit
+ (+) Full compatibility with previous versions of MultiMedia Cards (forward compatibility)
+ (+) Full compliance with SD Memory Card Specifications Version 2.0
+ (+) Full compliance with SD I/O Card Specification Version 2.0: card support for two
+ different data bus modes: 1-bit (default) and 4-bit
+ (+) Full support of the CE-ATA features (full compliance with CE-ATA digital protocol
+ Rev1.1)
+ (+) Data transfer up to 48 MHz for the 8 bit mode
+ (+) Data and command output enable signals to control external bidirectional drivers.
+
+
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ This driver is a considered as a driver of service for external devices drivers
+ that interfaces with the SDIO peripheral.
+ According to the device used (SD card/ MMC card / SDIO card ...), a set of APIs
+ is used in the device's driver to perform SDIO operations and functionalities.
+
+ This driver is almost transparent for the final user, it is only used to implement other
+ functionalities of the external device.
+
+ [..]
+ (+) The SDIO clock (SDIOCLK = 48 MHz) is coming from a specific output of PLL
+ (PLL48CLK). Before start working with SDIO peripheral make sure that the
+ PLL is well configured.
+ The SDIO peripheral uses two clock signals:
+ (++) SDIO adapter clock (SDIOCLK = 48 MHz)
+ (++) APB2 bus clock (PCLK2)
+
+ -@@- PCLK2 and SDIO_CK clock frequencies must respect the following condition:
+ Frequency(PCLK2) >= (3 / 8 x Frequency(SDIO_CK))
+
+ (+) Enable/Disable peripheral clock using RCC peripheral macros related to SDIO
+ peripheral.
+
+ (+) Enable the Power ON State using the SDIO_PowerState_ON(SDIOx)
+ function and disable it using the function SDIO_PowerState_OFF(SDIOx).
+
+ (+) Enable/Disable the clock using the __SDIO_ENABLE()/__SDIO_DISABLE() macros.
+
+ (+) Enable/Disable the peripheral interrupts using the macros __SDIO_ENABLE_IT(hsdio, IT)
+ and __SDIO_DISABLE_IT(hsdio, IT) if you need to use interrupt mode.
+
+ (+) When using the DMA mode
+ (++) Configure the DMA in the MSP layer of the external device
+ (++) Active the needed channel Request
+ (++) Enable the DMA using __SDIO_DMA_ENABLE() macro or Disable it using the macro
+ __SDIO_DMA_DISABLE().
+
+ (+) To control the CPSM (Command Path State Machine) and send
+ commands to the card use the SDIO_SendCommand(SDIOx),
+ SDIO_GetCommandResponse() and SDIO_GetResponse() functions. First, user has
+ to fill the command structure (pointer to SDIO_CmdInitTypeDef) according
+ to the selected command to be sent.
+ The parameters that should be filled are:
+ (++) Command Argument
+ (++) Command Index
+ (++) Command Response type
+ (++) Command Wait
+ (++) CPSM Status (Enable or Disable).
+
+ -@@- To check if the command is well received, read the SDIO_CMDRESP
+ register using the SDIO_GetCommandResponse().
+ The SDIO responses registers (SDIO_RESP1 to SDIO_RESP2), use the
+ SDIO_GetResponse() function.
+
+ (+) To control the DPSM (Data Path State Machine) and send/receive
+ data to/from the card use the SDIO_DataConfig(), SDIO_GetDataCounter(),
+ SDIO_ReadFIFO(), DIO_WriteFIFO() and SDIO_GetFIFOCount() functions.
+
+ *** Read Operations ***
+ =======================
+ [..]
+ (#) First, user has to fill the data structure (pointer to
+ SDIO_DataInitTypeDef) according to the selected data type to be received.
+ The parameters that should be filled are:
+ (++) Data Timeout
+ (++) Data Length
+ (++) Data Block size
+ (++) Data Transfer direction: should be from card (To SDIO)
+ (++) Data Transfer mode
+ (++) DPSM Status (Enable or Disable)
+
+ (#) Configure the SDIO resources to receive the data from the card
+ according to selected transfer mode (Refer to Step 8, 9 and 10).
+
+ (#) Send the selected Read command (refer to step 11).
+
+ (#) Use the SDIO flags/interrupts to check the transfer status.
+
+ *** Write Operations ***
+ ========================
+ [..]
+ (#) First, user has to fill the data structure (pointer to
+ SDIO_DataInitTypeDef) according to the selected data type to be received.
+ The parameters that should be filled are:
+ (++) Data Timeout
+ (++) Data Length
+ (++) Data Block size
+ (++) Data Transfer direction: should be to card (To CARD)
+ (++) Data Transfer mode
+ (++) DPSM Status (Enable or Disable)
+
+ (#) Configure the SDIO resources to send the data to the card according to
+ selected transfer mode.
+
+ (#) Send the selected Write command.
+
+ (#) Use the SDIO flags/interrupts to check the transfer status.
+
+ @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 "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup SDMMC_LL SDMMC Low Layer
+ * @brief Low layer module for SD and MMC driver
+ * @{
+ */
+
+#if defined (HAL_SD_MODULE_ENABLED) || defined(HAL_MMC_MODULE_ENABLED)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup SDMMC_LL_Exported_Functions SDMMC_LL Exported Functions
+ * @{
+ */
+
+/** @defgroup HAL_SDMMC_LL_Group1 Initialization/de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization/de-initialization functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the SDIO according to the specified
+ * parameters in the SDIO_InitTypeDef and create the associated handle.
+ * @param SDIOx: Pointer to SDIO register base
+ * @param Init: SDIO initialization structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_Init(SDIO_TypeDef *SDIOx, SDIO_InitTypeDef Init)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_SDIO_ALL_INSTANCE(SDIOx));
+ assert_param(IS_SDIO_CLOCK_EDGE(Init.ClockEdge));
+ assert_param(IS_SDIO_CLOCK_BYPASS(Init.ClockBypass));
+ assert_param(IS_SDIO_CLOCK_POWER_SAVE(Init.ClockPowerSave));
+ assert_param(IS_SDIO_BUS_WIDE(Init.BusWide));
+ assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
+ assert_param(IS_SDIO_CLKDIV(Init.ClockDiv));
+
+ /* Set SDIO configuration parameters */
+ tmpreg |= (Init.ClockEdge |\
+ Init.ClockBypass |\
+ Init.ClockPowerSave |\
+ Init.BusWide |\
+ Init.HardwareFlowControl |\
+ Init.ClockDiv
+ );
+
+ /* Write to SDIO CLKCR */
+ MODIFY_REG(SDIOx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup HAL_SDMMC_LL_Group2 I/O operation functions
+ * @brief Data transfers functions
+ *
+@verbatim
+ ===============================================================================
+ ##### I/O operation functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to manage the SDIO data
+ transfers.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Read data (word) from Rx FIFO in blocking mode (polling)
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval HAL status
+ */
+uint32_t SDIO_ReadFIFO(SDIO_TypeDef *SDIOx)
+{
+ /* Read data from Rx FIFO */
+ return (SDIOx->FIFO);
+}
+
+/**
+ * @brief Write data (word) to Tx FIFO in blocking mode (polling)
+ * @param SDIOx: Pointer to SDIO register base
+ * @param pWriteData: pointer to data to write
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_WriteFIFO(SDIO_TypeDef *SDIOx, uint32_t *pWriteData)
+{
+ /* Write data to FIFO */
+ SDIOx->FIFO = *pWriteData;
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup HAL_SDMMC_LL_Group3 Peripheral Control functions
+ * @brief management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral Control functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the SDIO data
+ transfers.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Set SDIO Power state to ON.
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_PowerState_ON(SDIO_TypeDef *SDIOx)
+{
+ /* Set power state to ON */
+ SDIOx->POWER = SDIO_POWER_PWRCTRL;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Set SDIO Power state to OFF.
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_PowerState_OFF(SDIO_TypeDef *SDIOx)
+{
+ /* Set power state to OFF */
+ SDIOx->POWER = (uint32_t)0x00000000;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get SDIO Power state.
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval Power status of the controller. The returned value can be one of the
+ * following values:
+ * - 0x00: Power OFF
+ * - 0x02: Power UP
+ * - 0x03: Power ON
+ */
+uint32_t SDIO_GetPowerState(SDIO_TypeDef *SDIOx)
+{
+ return (SDIOx->POWER & SDIO_POWER_PWRCTRL);
+}
+
+/**
+ * @brief Configure the SDIO command path according to the specified parameters in
+ * SDIO_CmdInitTypeDef structure and send the command
+ * @param SDIOx: Pointer to SDIO register base
+ * @param SDIO_CmdInitStruct: pointer to a SDIO_CmdInitTypeDef structure that contains
+ * the configuration information for the SDIO command
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_SendCommand(SDIO_TypeDef *SDIOx, SDIO_CmdInitTypeDef *SDIO_CmdInitStruct)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_SDIO_CMD_INDEX(SDIO_CmdInitStruct->CmdIndex));
+ assert_param(IS_SDIO_RESPONSE(SDIO_CmdInitStruct->Response));
+ assert_param(IS_SDIO_WAIT(SDIO_CmdInitStruct->WaitForInterrupt));
+ assert_param(IS_SDIO_CPSM(SDIO_CmdInitStruct->CPSM));
+
+ /* Set the SDIO Argument value */
+ SDIOx->ARG = SDIO_CmdInitStruct->Argument;
+
+ /* Set SDIO command parameters */
+ tmpreg |= (uint32_t)(SDIO_CmdInitStruct->CmdIndex |\
+ SDIO_CmdInitStruct->Response |\
+ SDIO_CmdInitStruct->WaitForInterrupt |\
+ SDIO_CmdInitStruct->CPSM);
+
+ /* Write to SDIO CMD register */
+ MODIFY_REG(SDIOx->CMD, CMD_CLEAR_MASK, tmpreg);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Return the command index of last command for which response received
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval Command index of the last command response received
+ */
+uint8_t SDIO_GetCommandResponse(SDIO_TypeDef *SDIOx)
+{
+ return (uint8_t)(SDIOx->RESPCMD);
+}
+
+
+/**
+ * @brief Return the response received from the card for the last command
+ * @param SDIO_RESP: Specifies the SDIO response register.
+ * This parameter can be one of the following values:
+ * @arg SDIO_RESP1: Response Register 1
+ * @arg SDIO_RESP2: Response Register 2
+ * @arg SDIO_RESP3: Response Register 3
+ * @arg SDIO_RESP4: Response Register 4
+ * @retval The Corresponding response register value
+ */
+uint32_t SDIO_GetResponse(uint32_t SDIO_RESP)
+{
+ __IO uint32_t tmp = 0;
+
+ /* Check the parameters */
+ assert_param(IS_SDIO_RESP(SDIO_RESP));
+
+ /* Get the response */
+ tmp = SDIO_RESP_ADDR + SDIO_RESP;
+
+ return (*(__IO uint32_t *) tmp);
+}
+
+/**
+ * @brief Configure the SDIO data path according to the specified
+ * parameters in the SDIO_DataInitTypeDef.
+ * @param SDIOx: Pointer to SDIO register base
+ * @param SDIO_DataInitStruct : pointer to a SDIO_DataInitTypeDef structure
+ * that contains the configuration information for the SDIO command.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef SDIO_DataConfig(SDIO_TypeDef *SDIOx, SDIO_DataInitTypeDef* SDIO_DataInitStruct)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameters */
+ assert_param(IS_SDIO_DATA_LENGTH(SDIO_DataInitStruct->DataLength));
+ assert_param(IS_SDIO_BLOCK_SIZE(SDIO_DataInitStruct->DataBlockSize));
+ assert_param(IS_SDIO_TRANSFER_DIR(SDIO_DataInitStruct->TransferDir));
+ assert_param(IS_SDIO_TRANSFER_MODE(SDIO_DataInitStruct->TransferMode));
+ assert_param(IS_SDIO_DPSM(SDIO_DataInitStruct->DPSM));
+
+ /* Set the SDIO Data Timeout value */
+ SDIOx->DTIMER = SDIO_DataInitStruct->DataTimeOut;
+
+ /* Set the SDIO DataLength value */
+ SDIOx->DLEN = SDIO_DataInitStruct->DataLength;
+
+ /* Set the SDIO data configuration parameters */
+ tmpreg |= (uint32_t)(SDIO_DataInitStruct->DataBlockSize |\
+ SDIO_DataInitStruct->TransferDir |\
+ SDIO_DataInitStruct->TransferMode |\
+ SDIO_DataInitStruct->DPSM);
+
+ /* Write to SDIO DCTRL */
+ MODIFY_REG(SDIOx->DCTRL, DCTRL_CLEAR_MASK, tmpreg);
+
+ return HAL_OK;
+
+}
+
+/**
+ * @brief Returns number of remaining data bytes to be transferred.
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval Number of remaining data bytes to be transferred
+ */
+uint32_t SDIO_GetDataCounter(SDIO_TypeDef *SDIOx)
+{
+ return (SDIOx->DCOUNT);
+}
+
+/**
+ * @brief Get the FIFO data
+ * @param SDIOx: Pointer to SDIO register base
+ * @retval Data received
+ */
+uint32_t SDIO_GetFIFOCount(SDIO_TypeDef *SDIOx)
+{
+ return (SDIOx->FIFO);
+}
+
+
+/**
+ * @brief Sets one of the two options of inserting read wait interval.
+ * @param SDIO_ReadWaitMode: SD I/O Read Wait operation mode.
+ * This parameter can be:
+ * @arg SDIO_READ_WAIT_MODE_CLK: Read Wait control by stopping SDIOCLK
+ * @arg SDIO_READ_WAIT_MODE_DATA2: Read Wait control using SDIO_DATA2
+ * @retval None
+ */
+HAL_StatusTypeDef SDIO_SetSDIOReadWaitMode(uint32_t SDIO_ReadWaitMode)
+{
+ /* Check the parameters */
+ assert_param(IS_SDIO_READWAIT_MODE(SDIO_ReadWaitMode));
+
+ *(__IO uint32_t *)DCTRL_RWMOD_BB = SDIO_ReadWaitMode;
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* (HAL_SD_MODULE_ENABLED) || (HAL_MMC_MODULE_ENABLED) */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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