Tux Leon
mbed library sources. Supersedes mbed-src.
Fork of
mbed-dev
by 
mbed official
Diff: targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_ll_sdmmc.c
- Revision:
- 167:e84263d55307
- Parent:
- 149:156823d33999
--- a/targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_ll_sdmmc.c Thu Jun 08 15:02:37 2017 +0100
+++ b/targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_ll_sdmmc.c Wed Jun 21 17:46:44 2017 +0100
@@ -2,9 +2,10 @@
******************************************************************************
* @file stm32l4xx_ll_sdmmc.c
* @author MCD Application Team
- * @version V1.5.1
- * @date 31-May-2016
+ * @version V1.7.1
+ * @date 21-April-2017
* @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
@@ -53,7 +54,8 @@
(++) APB2 bus clock (PCLK2)
-@@- PCLK2 and SDMMC_CK clock frequencies must respect the following condition:
- Frequency(PCLK2) >= (3 / 8 x Frequency(SDMMC_CK))
+ Frequency(PCLK2) >= (3 / 8 x Frequency(SDMMC_CK)) for STM32L496xG and STM32L4A6xG
+ Frequency(PCLK2) >= (3 / 4 x Frequency(SDMMC_CK)) otherwise
(+) Enable/Disable peripheral clock using RCC peripheral macros related to SDMMC
peripheral.
@@ -133,11 +135,20 @@
(#) Use the SDMMC flags/interrupts to check the transfer status.
+ *** Command management operations ***
+ =====================================
+ [..]
+ (#) The commands used for Read/Write/Erase operations are managed in
+ separate functions.
+ Each function allows to send the needed command with the related argument,
+ then check the response.
+ By the same approach, you could implement a command and check the response.
+
@endverbatim
******************************************************************************
* @attention
*
- * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+ * <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:
@@ -185,6 +196,13 @@
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
+static uint32_t SDMMC_GetCmdError(SDMMC_TypeDef *SDMMCx);
+static uint32_t SDMMC_GetCmdResp1(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint32_t Timeout);
+static uint32_t SDMMC_GetCmdResp2(SDMMC_TypeDef *SDMMCx);
+static uint32_t SDMMC_GetCmdResp3(SDMMC_TypeDef *SDMMCx);
+static uint32_t SDMMC_GetCmdResp7(SDMMC_TypeDef *SDMMCx);
+static uint32_t SDMMC_GetCmdResp6(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint16_t *pRCA);
+
/* Exported functions --------------------------------------------------------*/
/** @defgroup SDMMC_LL_Exported_Functions SDMMC Low Layer Exported Functions
@@ -206,7 +224,7 @@
/**
* @brief Initializes the SDMMC according to the specified
- * parameters in the SDMMC_InitTypeDef and initialize the associated handle.
+ * parameters in the SDMMC_InitTypeDef and create the associated handle.
* @param SDMMCx: Pointer to SDMMC register base
* @param Init: SDMMC initialization structure
* @retval HAL status
@@ -235,7 +253,6 @@
}
-
/**
* @}
*/
@@ -334,7 +351,7 @@
* - 0x02: Power UP
* - 0x03: Power ON
*/
-uint32_t SDMMC_GetPowerState(SDMMC_TypeDef *SDMMCx)
+uint32_t SDMMC_GetPowerState(SDMMC_TypeDef *SDMMCx)
{
return (SDMMCx->POWER & SDMMC_POWER_PWRCTRL);
}
@@ -365,7 +382,7 @@
Command->WaitForInterrupt |\
Command->CPSM);
- return HAL_OK;
+ return HAL_OK;
}
/**
@@ -411,7 +428,7 @@
* that contains the configuration information for the SDMMC data.
* @retval HAL status
*/
-HAL_StatusTypeDef SDMMC_DataConfig(SDMMC_TypeDef *SDMMCx, SDMMC_DataInitTypeDef* Data)
+HAL_StatusTypeDef SDMMC_ConfigData(SDMMC_TypeDef *SDMMCx, SDMMC_DataInitTypeDef* Data)
{
/* Check the parameters */
assert_param(IS_SDMMC_DATA_LENGTH(Data->DataLength));
@@ -457,7 +474,6 @@
return (SDMMCx->FIFO);
}
-
/**
* @brief Sets one of the two options of inserting read wait interval.
* @param SDMMCx: Pointer to SDMMC register base
@@ -471,9 +487,9 @@
{
/* Check the parameters */
assert_param(IS_SDMMC_READWAIT_MODE(SDMMC_ReadWaitMode));
-
+
/* Set SDMMC read wait mode */
- MODIFY_REG(SDMMCx->DCTRL, SDMMC_DCTRL_RWMOD, SDMMC_ReadWaitMode);
+ MODIFY_REG(SDMMCx->DCTRL, SDMMC_DCTRL_RWMOD, SDMMC_ReadWaitMode);
return HAL_OK;
}
@@ -482,6 +498,992 @@
* @}
*/
+
+/** @defgroup HAL_SDMMC_LL_Group4 Command management functions
+ * @brief Data transfers functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Commands management functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to manage the needed commands.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Send the Data Block Lenght command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdBlockLength(SDMMC_TypeDef *SDMMCx, uint32_t BlockSize)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)BlockSize;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SET_BLOCKLEN;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SET_BLOCKLEN, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Read Single Block command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdReadSingleBlock(SDMMC_TypeDef *SDMMCx, uint32_t ReadAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)ReadAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_READ_SINGLE_BLOCK;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_READ_SINGLE_BLOCK, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Read Multi Block command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdReadMultiBlock(SDMMC_TypeDef *SDMMCx, uint32_t ReadAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)ReadAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_READ_MULT_BLOCK;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_READ_MULT_BLOCK, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Write Single Block command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdWriteSingleBlock(SDMMC_TypeDef *SDMMCx, uint32_t WriteAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)WriteAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_WRITE_SINGLE_BLOCK;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_WRITE_SINGLE_BLOCK, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Write Multi Block command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdWriteMultiBlock(SDMMC_TypeDef *SDMMCx, uint32_t WriteAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)WriteAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_WRITE_MULT_BLOCK;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_WRITE_MULT_BLOCK, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Start Address Erase command for SD and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSDEraseStartAdd(SDMMC_TypeDef *SDMMCx, uint32_t StartAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)StartAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SD_ERASE_GRP_START;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_ERASE_GRP_START, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the End Address Erase command for SD and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSDEraseEndAdd(SDMMC_TypeDef *SDMMCx, uint32_t EndAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)EndAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SD_ERASE_GRP_END;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_ERASE_GRP_END, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Start Address Erase command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdEraseStartAdd(SDMMC_TypeDef *SDMMCx, uint32_t StartAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)StartAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_ERASE_GRP_START;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE_GRP_START, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the End Address Erase command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdEraseEndAdd(SDMMC_TypeDef *SDMMCx, uint32_t EndAdd)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = (uint32_t)EndAdd;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_ERASE_GRP_END;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE_GRP_END, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Erase command and check the response
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdErase(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Set Block Size for Card */
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_ERASE;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE, SDMMC_MAXERASETIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Stop Transfer command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdStopTransfer(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD12 STOP_TRANSMISSION */
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_STOP_TRANSMISSION;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_STOP_TRANSMISSION, SDMMC_STOPTRANSFERTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Select Deselect command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param addr: Address of the card to be selected
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSelDesel(SDMMC_TypeDef *SDMMCx, uint64_t Addr)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD7 SDMMC_SEL_DESEL_CARD */
+ sdmmc_cmdinit.Argument = (uint32_t)Addr;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SEL_DESEL_CARD;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SEL_DESEL_CARD, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Go Idle State command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdGoIdleState(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_GO_IDLE_STATE;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_NO;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdError(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Operating Condition command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdOperCond(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD8 to verify SD card interface operating condition */
+ /* Argument: - [31:12]: Reserved (shall be set to '0')
+ - [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
+ - [7:0]: Check Pattern (recommended 0xAA) */
+ /* CMD Response: R7 */
+ sdmmc_cmdinit.Argument = SDMMC_CHECK_PATTERN;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_HS_SEND_EXT_CSD;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp7(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Application command to verify that that the next command
+ * is an application specific com-mand rather than a standard command
+ * and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param Argument: Command Argument
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdAppCommand(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = (uint32_t)Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_APP_CMD;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ /* If there is a HAL_ERROR, it is a MMC card, else
+ it is a SD card: SD card 2.0 (voltage range mismatch)
+ or SD card 1.x */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_APP_CMD, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the command asking the accessed card to send its operating
+ * condition register (OCR)
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param Argument: Command Argument
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdAppOperCommand(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = SDMMC_VOLTAGE_WINDOW_SD | Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SD_APP_OP_COND;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp3(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Bus Width command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param BusWidth: BusWidth
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdBusWidth(SDMMC_TypeDef *SDMMCx, uint32_t BusWidth)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = (uint32_t)BusWidth;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_APP_SD_SET_BUSWIDTH;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_APP_SD_SET_BUSWIDTH, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Send SCR command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSendSCR(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD51 SD_APP_SEND_SCR */
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SD_APP_SEND_SCR;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_APP_SEND_SCR, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Send CID command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSendCID(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD2 ALL_SEND_CID */
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_ALL_SEND_CID;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_LONG;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp2(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Send CSD command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param Argument: Command Argument
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSendCSD(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD9 SEND_CSD */
+ sdmmc_cmdinit.Argument = Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SEND_CSD;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_LONG;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp2(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Send CSD command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param pRCA: Card RCA
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSetRelAdd(SDMMC_TypeDef *SDMMCx, uint16_t *pRCA)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ /* Send CMD3 SD_CMD_SET_REL_ADDR */
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SET_REL_ADDR;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp6(SDMMCx, SDMMC_CMD_SET_REL_ADDR, pRCA);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Status command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @param Argument: Command Argument
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSendStatus(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SEND_STATUS;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SEND_STATUS, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Send the Status register command and check the response.
+ * @param SDMMCx: Pointer to SDMMC register base
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdStatusRegister(SDMMC_TypeDef *SDMMCx)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = 0;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SD_APP_STATUS;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_APP_STATUS, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+/**
+ * @brief Sends host capacity support information and activates the card's
+ * initialization process. Send SDMMC_CMD_SEND_OP_COND command
+ * @param SDIOx: Pointer to SDIO register base
+ * @parame Argument: Argument used for the command
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdOpCondition(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_SEND_OP_COND;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp3(SDMMCx);
+
+ return errorstate;
+}
+
+/**
+ * @brief Checks switchable function and switch card function. SDMMC_CMD_HS_SWITCH comand
+ * @param SDIOx: Pointer to SDIO register base
+ * @parame Argument: Argument used for the command
+ * @retval HAL status
+ */
+uint32_t SDMMC_CmdSwitch(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
+{
+ SDMMC_CmdInitTypeDef sdmmc_cmdinit;
+ uint32_t errorstate = SDMMC_ERROR_NONE;
+
+ sdmmc_cmdinit.Argument = Argument;
+ sdmmc_cmdinit.CmdIndex = SDMMC_CMD_HS_SWITCH;
+ sdmmc_cmdinit.Response = SDMMC_RESPONSE_SHORT;
+ sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
+ sdmmc_cmdinit.CPSM = SDMMC_CPSM_ENABLE;
+ SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
+
+ /* Check for error conditions */
+ errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_HS_SWITCH, SDMMC_CMDTIMEOUT);
+
+ return errorstate;
+}
+
+
+/**
+ * @}
+ */
+
+/* Private function ----------------------------------------------------------*/
+/** @addtogroup SD_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Checks for error conditions for CMD0.
+ * @param hsd: SD handle
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdError(SDMMC_TypeDef *SDMMCx)
+{
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The SDMMC_CMDTIMEOUT is expressed in ms */
+ register uint32_t count = SDMMC_CMDTIMEOUT * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CMDSENT));
+
+ /* Clear all the static flags */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_FLAGS);
+
+ return SDMMC_ERROR_NONE;
+}
+
+/**
+ * @brief Checks for error conditions for R1 response.
+ * @param hsd: SD handle
+ * @param SD_CMD: The sent command index
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdResp1(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint32_t Timeout)
+{
+ uint32_t response_r1;
+ uint32_t flags;
+
+ flags = SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT;
+
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The Timeout is expressed in ms */
+ register uint32_t count = Timeout * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, flags));
+
+ if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT);
+
+ return SDMMC_ERROR_CMD_RSP_TIMEOUT;
+ }
+ else if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL);
+
+ return SDMMC_ERROR_CMD_CRC_FAIL;
+ }
+
+ /* Check response received is of desired command */
+ if(SDMMC_GetCommandResponse(SDMMCx) != SD_CMD)
+ {
+ return SDMMC_ERROR_CMD_CRC_FAIL;
+ }
+
+ /* Clear all the static flags */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_FLAGS);
+
+ /* We have received response, retrieve it for analysis */
+ response_r1 = SDMMC_GetResponse(SDMMCx, SDMMC_RESP1);
+
+ if((response_r1 & SDMMC_OCR_ERRORBITS) == SDMMC_ALLZERO)
+ {
+ return SDMMC_ERROR_NONE;
+ }
+ else if((response_r1 & SDMMC_OCR_ADDR_OUT_OF_RANGE) == SDMMC_OCR_ADDR_OUT_OF_RANGE)
+ {
+ return SDMMC_ERROR_ADDR_OUT_OF_RANGE;
+ }
+ else if((response_r1 & SDMMC_OCR_ADDR_MISALIGNED) == SDMMC_OCR_ADDR_MISALIGNED)
+ {
+ return SDMMC_ERROR_ADDR_MISALIGNED;
+ }
+ else if((response_r1 & SDMMC_OCR_BLOCK_LEN_ERR) == SDMMC_OCR_BLOCK_LEN_ERR)
+ {
+ return SDMMC_ERROR_BLOCK_LEN_ERR;
+ }
+ else if((response_r1 & SDMMC_OCR_ERASE_SEQ_ERR) == SDMMC_OCR_ERASE_SEQ_ERR)
+ {
+ return SDMMC_ERROR_ERASE_SEQ_ERR;
+ }
+ else if((response_r1 & SDMMC_OCR_BAD_ERASE_PARAM) == SDMMC_OCR_BAD_ERASE_PARAM)
+ {
+ return SDMMC_ERROR_BAD_ERASE_PARAM;
+ }
+ else if((response_r1 & SDMMC_OCR_WRITE_PROT_VIOLATION) == SDMMC_OCR_WRITE_PROT_VIOLATION)
+ {
+ return SDMMC_ERROR_WRITE_PROT_VIOLATION;
+ }
+ else if((response_r1 & SDMMC_OCR_LOCK_UNLOCK_FAILED) == SDMMC_OCR_LOCK_UNLOCK_FAILED)
+ {
+ return SDMMC_ERROR_LOCK_UNLOCK_FAILED;
+ }
+ else if((response_r1 & SDMMC_OCR_COM_CRC_FAILED) == SDMMC_OCR_COM_CRC_FAILED)
+ {
+ return SDMMC_ERROR_COM_CRC_FAILED;
+ }
+ else if((response_r1 & SDMMC_OCR_ILLEGAL_CMD) == SDMMC_OCR_ILLEGAL_CMD)
+ {
+ return SDMMC_ERROR_ILLEGAL_CMD;
+ }
+ else if((response_r1 & SDMMC_OCR_CARD_ECC_FAILED) == SDMMC_OCR_CARD_ECC_FAILED)
+ {
+ return SDMMC_ERROR_CARD_ECC_FAILED;
+ }
+ else if((response_r1 & SDMMC_OCR_CC_ERROR) == SDMMC_OCR_CC_ERROR)
+ {
+ return SDMMC_ERROR_CC_ERR;
+ }
+ else if((response_r1 & SDMMC_OCR_STREAM_READ_UNDERRUN) == SDMMC_OCR_STREAM_READ_UNDERRUN)
+ {
+ return SDMMC_ERROR_STREAM_READ_UNDERRUN;
+ }
+ else if((response_r1 & SDMMC_OCR_STREAM_WRITE_OVERRUN) == SDMMC_OCR_STREAM_WRITE_OVERRUN)
+ {
+ return SDMMC_ERROR_STREAM_WRITE_OVERRUN;
+ }
+ else if((response_r1 & SDMMC_OCR_CID_CSD_OVERWRITE) == SDMMC_OCR_CID_CSD_OVERWRITE)
+ {
+ return SDMMC_ERROR_CID_CSD_OVERWRITE;
+ }
+ else if((response_r1 & SDMMC_OCR_WP_ERASE_SKIP) == SDMMC_OCR_WP_ERASE_SKIP)
+ {
+ return SDMMC_ERROR_WP_ERASE_SKIP;
+ }
+ else if((response_r1 & SDMMC_OCR_CARD_ECC_DISABLED) == SDMMC_OCR_CARD_ECC_DISABLED)
+ {
+ return SDMMC_ERROR_CARD_ECC_DISABLED;
+ }
+ else if((response_r1 & SDMMC_OCR_ERASE_RESET) == SDMMC_OCR_ERASE_RESET)
+ {
+ return SDMMC_ERROR_ERASE_RESET;
+ }
+ else if((response_r1 & SDMMC_OCR_AKE_SEQ_ERROR) == SDMMC_OCR_AKE_SEQ_ERROR)
+ {
+ return SDMMC_ERROR_AKE_SEQ_ERR;
+ }
+ else
+ {
+ return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
+ }
+}
+
+/**
+ * @brief Checks for error conditions for R2 (CID or CSD) response.
+ * @param hsd: SD handle
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdResp2(SDMMC_TypeDef *SDMMCx)
+{
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The SDMMC_CMDTIMEOUT is expressed in ms */
+ register uint32_t count = SDMMC_CMDTIMEOUT * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT));
+
+ if (__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT);
+
+ return SDMMC_ERROR_CMD_RSP_TIMEOUT;
+ }
+ else if (__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL);
+
+ return SDMMC_ERROR_CMD_CRC_FAIL;
+ }
+ else
+ {
+ /* No error flag set */
+ /* Clear all the static flags */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_FLAGS);
+ }
+
+ return SDMMC_ERROR_NONE;
+}
+
+/**
+ * @brief Checks for error conditions for R3 (OCR) response.
+ * @param hsd: SD handle
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdResp3(SDMMC_TypeDef *SDMMCx)
+{
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The SDMMC_CMDTIMEOUT is expressed in ms */
+ register uint32_t count = SDMMC_CMDTIMEOUT * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT));
+
+ if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT);
+
+ return SDMMC_ERROR_CMD_RSP_TIMEOUT;
+ }
+ else
+
+ {
+ /* Clear all the static flags */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_FLAGS);
+ }
+
+ return SDMMC_ERROR_NONE;
+}
+
+/**
+ * @brief Checks for error conditions for R6 (RCA) response.
+ * @param hsd: SD handle
+ * @param SD_CMD: The sent command index
+ * @param pRCA: Pointer to the variable that will contain the SD card relative
+ * address RCA
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdResp6(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint16_t *pRCA)
+{
+ uint32_t response_r1;
+
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The SDMMC_CMDTIMEOUT is expressed in ms */
+ register uint32_t count = SDMMC_CMDTIMEOUT * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT));
+
+ if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT);
+
+ return SDMMC_ERROR_CMD_RSP_TIMEOUT;
+ }
+ else if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL))
+ {
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL);
+
+ return SDMMC_ERROR_CMD_CRC_FAIL;
+ }
+
+ /* Check response received is of desired command */
+ if(SDMMC_GetCommandResponse(SDMMCx) != SD_CMD)
+ {
+ return SDMMC_ERROR_CMD_CRC_FAIL;
+ }
+
+ /* Clear all the static flags */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_FLAGS);
+
+ /* We have received response, retrieve it. */
+ response_r1 = SDMMC_GetResponse(SDMMCx, SDMMC_RESP1);
+
+ if((response_r1 & (SDMMC_R6_GENERAL_UNKNOWN_ERROR | SDMMC_R6_ILLEGAL_CMD | SDMMC_R6_COM_CRC_FAILED)) == SDMMC_ALLZERO)
+ {
+ *pRCA = (uint16_t) (response_r1 >> 16);
+
+ return SDMMC_ERROR_NONE;
+ }
+ else if((response_r1 & SDMMC_R6_ILLEGAL_CMD) == SDMMC_R6_ILLEGAL_CMD)
+ {
+ return SDMMC_ERROR_ILLEGAL_CMD;
+ }
+ else if((response_r1 & SDMMC_R6_COM_CRC_FAILED) == SDMMC_R6_COM_CRC_FAILED)
+ {
+ return SDMMC_ERROR_COM_CRC_FAILED;
+ }
+ else
+ {
+ return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
+ }
+}
+
+/**
+ * @brief Checks for error conditions for R7 response.
+ * @param hsd: SD handle
+ * @retval SD Card error state
+ */
+static uint32_t SDMMC_GetCmdResp7(SDMMC_TypeDef *SDMMCx)
+{
+ /* 8 is the number of required instructions cycles for the below loop statement.
+ The SDMMC_CMDTIMEOUT is expressed in ms */
+ register uint32_t count = SDMMC_CMDTIMEOUT * (SystemCoreClock / 8 /1000);
+
+ do
+ {
+ if (count-- == 0)
+ {
+ return SDMMC_ERROR_TIMEOUT;
+ }
+
+ }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT));
+
+ if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
+ {
+ /* Card is SD V2.0 compliant */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CMDREND);
+
+ return SDMMC_ERROR_CMD_RSP_TIMEOUT;
+ }
+
+ if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CMDREND))
+ {
+ /* Card is SD V2.0 compliant */
+ __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CMDREND);
+ }
+
+ return SDMMC_ERROR_NONE;
+
+}
+
+/**
+ * @}
+ */
+
/**
* @}
*/