stm32f7xx_ll_sdmmc.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"
 
#if defined(SDMMC1)
 
#if defined(HAL_SD_MODULE_ENABLED) || defined(HAL_MMC_MODULE_ENABLED)
 
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* 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 --------------------------------------------------------*/
 
HAL_StatusTypeDef SDMMC_Init(SDMMC_TypeDef *SDMMCx, SDMMC_InitTypeDef Init)
{
  uint32_t tmpreg = 0;
 
  /* Check the parameters */
  assert_param(IS_SDMMC_ALL_INSTANCE(SDMMCx));
  assert_param(IS_SDMMC_CLOCK_EDGE(Init.ClockEdge)); 
  assert_param(IS_SDMMC_CLOCK_BYPASS(Init.ClockBypass));
  assert_param(IS_SDMMC_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  assert_param(IS_SDMMC_BUS_WIDE(Init.BusWide));
  assert_param(IS_SDMMC_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  assert_param(IS_SDMMC_CLKDIV(Init.ClockDiv));
  
  /* Set SDMMC configuration parameters */
  tmpreg |= (Init.ClockEdge           |\
             Init.ClockBypass         |\
             Init.ClockPowerSave      |\
             Init.BusWide             |\
             Init.HardwareFlowControl |\
             Init.ClockDiv
             ); 
  
  /* Write to SDMMC CLKCR */
  MODIFY_REG(SDMMCx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);  
 
  return HAL_OK;
}
 
 
uint32_t SDMMC_ReadFIFO(SDMMC_TypeDef *SDMMCx)
{
  /* Read data from Rx FIFO */ 
  return (SDMMCx->FIFO);
}
 
HAL_StatusTypeDef SDMMC_WriteFIFO(SDMMC_TypeDef *SDMMCx, uint32_t *pWriteData)
{ 
  /* Write data to FIFO */ 
  SDMMCx->FIFO = *pWriteData;
 
  return HAL_OK;
}
 
HAL_StatusTypeDef SDMMC_PowerState_ON(SDMMC_TypeDef *SDMMCx)
{  
  /* Set power state to ON */ 
  SDMMCx->POWER = SDMMC_POWER_PWRCTRL;
 
  /* 1ms: required power up waiting time before starting the SD initialization
  sequence */
  HAL_Delay(2);
  
  return HAL_OK;
}
 
HAL_StatusTypeDef SDMMC_PowerState_OFF(SDMMC_TypeDef *SDMMCx)
{
  /* Set power state to OFF */
  SDMMCx->POWER = (uint32_t)0x00000000;
  
  return HAL_OK;
}
 
uint32_t SDMMC_GetPowerState(SDMMC_TypeDef *SDMMCx)  
{
  return (SDMMCx->POWER & SDMMC_POWER_PWRCTRL);
}
 
HAL_StatusTypeDef SDMMC_SendCommand(SDMMC_TypeDef *SDMMCx, SDMMC_CmdInitTypeDef *Command)
{
  uint32_t tmpreg = 0;
  
  /* Check the parameters */
  assert_param(IS_SDMMC_CMD_INDEX(Command->CmdIndex));
  assert_param(IS_SDMMC_RESPONSE(Command->Response));
  assert_param(IS_SDMMC_WAIT(Command->WaitForInterrupt));
  assert_param(IS_SDMMC_CPSM(Command->CPSM));
 
  /* Set the SDMMC Argument value */
  SDMMCx->ARG = Command->Argument;
 
  /* Set SDMMC command parameters */
  tmpreg |= (uint32_t)(Command->CmdIndex         |\
                       Command->Response         |\
                       Command->WaitForInterrupt |\
                       Command->CPSM);
  
  /* Write to SDMMC CMD register */
  MODIFY_REG(SDMMCx->CMD, CMD_CLEAR_MASK, tmpreg); 
  
  return HAL_OK;  
}
 
uint8_t SDMMC_GetCommandResponse(SDMMC_TypeDef *SDMMCx)
{
  return (uint8_t)(SDMMCx->RESPCMD);
}
 
 
uint32_t SDMMC_GetResponse(SDMMC_TypeDef *SDMMCx, uint32_t Response)
{
  uint32_t tmp;
 
  /* Check the parameters */
  assert_param(IS_SDMMC_RESP(Response));
  
  /* Get the response */
  tmp = (uint32_t)(&(SDMMCx->RESP1)) + Response;
  
  return (*(__IO uint32_t *) tmp);
}  
 
HAL_StatusTypeDef SDMMC_ConfigData(SDMMC_TypeDef *SDMMCx, SDMMC_DataInitTypeDef* Data)
{
  uint32_t tmpreg = 0;
  
  /* Check the parameters */
  assert_param(IS_SDMMC_DATA_LENGTH(Data->DataLength));
  assert_param(IS_SDMMC_BLOCK_SIZE(Data->DataBlockSize));
  assert_param(IS_SDMMC_TRANSFER_DIR(Data->TransferDir));
  assert_param(IS_SDMMC_TRANSFER_MODE(Data->TransferMode));
  assert_param(IS_SDMMC_DPSM(Data->DPSM));
 
  /* Set the SDMMC Data TimeOut value */
  SDMMCx->DTIMER = Data->DataTimeOut;
 
  /* Set the SDMMC DataLength value */
  SDMMCx->DLEN = Data->DataLength;
 
  /* Set the SDMMC data configuration parameters */
  tmpreg |= (uint32_t)(Data->DataBlockSize |\
                       Data->TransferDir   |\
                       Data->TransferMode  |\
                       Data->DPSM);
  
  /* Write to SDMMC DCTRL */
  MODIFY_REG(SDMMCx->DCTRL, DCTRL_CLEAR_MASK, tmpreg);
 
  return HAL_OK;
 
}
 
uint32_t SDMMC_GetDataCounter(SDMMC_TypeDef *SDMMCx)
{
  return (SDMMCx->DCOUNT);
}
 
uint32_t SDMMC_GetFIFOCount(SDMMC_TypeDef *SDMMCx)
{
  return (SDMMCx->FIFO);
}
 
HAL_StatusTypeDef SDMMC_SetSDMMCReadWaitMode(SDMMC_TypeDef *SDMMCx, uint32_t SDMMC_ReadWaitMode)
{
  /* 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);
  
  return HAL_OK;  
}
 
uint32_t SDMMC_CmdBlockLength(SDMMC_TypeDef *SDMMCx, uint32_t BlockSize)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SET_BLOCKLEN, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdReadSingleBlock(SDMMC_TypeDef *SDMMCx, uint32_t ReadAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_READ_SINGLE_BLOCK, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdReadMultiBlock(SDMMC_TypeDef *SDMMCx, uint32_t ReadAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_READ_MULT_BLOCK, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdWriteSingleBlock(SDMMC_TypeDef *SDMMCx, uint32_t WriteAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_WRITE_SINGLE_BLOCK, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdWriteMultiBlock(SDMMC_TypeDef *SDMMCx, uint32_t WriteAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_WRITE_MULT_BLOCK, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSDEraseStartAdd(SDMMC_TypeDef *SDMMCx, uint32_t StartAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_ERASE_GRP_START, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSDEraseEndAdd(SDMMC_TypeDef *SDMMCx, uint32_t EndAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_ERASE_GRP_END, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdEraseStartAdd(SDMMC_TypeDef *SDMMCx, uint32_t StartAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE_GRP_START, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdEraseEndAdd(SDMMC_TypeDef *SDMMCx, uint32_t EndAdd)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE_GRP_END, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdErase(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Set Block Size for Card */ 
  sdmmc_cmdinit.Argument         = 0U;
  sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE;
  sdmmc_cmdinit.Response         = SDMMC_RESPONSE_SHORT;
  sdmmc_cmdinit.WaitForInterrupt = SDMMC_WAIT_NO;
  sdmmc_cmdinit.CPSM             = SDMMC_CPSM_ENABLE;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_ERASE, SDMMC_MAXERASETIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdStopTransfer(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Send CMD12 STOP_TRANSMISSION  */
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_STOP_TRANSMISSION, SDMMC_STOPTRANSFERTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSelDesel(SDMMC_TypeDef *SDMMCx, uint64_t Addr)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SEL_DESEL_CARD, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdGoIdleState(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdError(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdOperCond(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp7(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdAppCommand(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  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;
  (void)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;
}
 
uint32_t SDMMC_CmdAppOperCommand(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp3(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdBusWidth(SDMMC_TypeDef *SDMMCx, uint32_t BusWidth)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_APP_SD_SET_BUSWIDTH, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSendSCR(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Send CMD51 SD_APP_SEND_SCR */
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_APP_SEND_SCR, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSendCID(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Send CMD2 ALL_SEND_CID */
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp2(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSendCSD(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* 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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp2(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSetRelAdd(SDMMC_TypeDef *SDMMCx, uint16_t *pRCA)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Send CMD3 SD_CMD_SET_REL_ADDR */
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp6(SDMMCx, SDMMC_CMD_SET_REL_ADDR, pRCA);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSendStatus(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SEND_STATUS, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdStatusRegister(SDMMC_TypeDef *SDMMCx)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  sdmmc_cmdinit.Argument         = 0U;
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_SD_APP_STATUS, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdOpCondition(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp3(SDMMCx);
 
  return errorstate;
}
 
uint32_t SDMMC_CmdSwitch(SDMMC_TypeDef *SDMMCx, uint32_t Argument)
{
  SDMMC_CmdInitTypeDef  sdmmc_cmdinit;
  uint32_t errorstate;
  
  /* Send CMD6 to activate SDR50 Mode and Power Limit 1.44W */
  /* CMD Response: R1 */
  sdmmc_cmdinit.Argument         = Argument; /* SDMMC_SDR25_SWITCH_PATTERN */
  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;
  (void)SDMMC_SendCommand(SDMMCx, &sdmmc_cmdinit);
  
  /* Check for error conditions */
  errorstate = SDMMC_GetCmdResp1(SDMMCx, SDMMC_CMD_HS_SWITCH, SDMMC_CMDTIMEOUT);
 
  return errorstate;
}
 
/* Private function ----------------------------------------------------------*/  
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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    
  }while(!__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CMDSENT));
  
  /* Clear all the static flags */
  __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_CMD_FLAGS);
  
  return SDMMC_ERROR_NONE;
}
 
static uint32_t SDMMC_GetCmdResp1(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint32_t Timeout)
{
  uint32_t response_r1;
  uint32_t sta_reg;
  
  /* 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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    sta_reg = SDMMCx->STA;
  }while(((sta_reg & (SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT)) == 0U) ||
         ((sta_reg & SDMMC_FLAG_CMDACT) != 0U ));
    
  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
  {
    /* Nothing to do */
  }
  
  /* Clear all the static flags */
  __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_STATIC_CMD_FLAGS);
  
  /* Check response received is of desired command */
  if(SDMMC_GetCommandResponse(SDMMCx) != SD_CMD)
  {
    return SDMMC_ERROR_CMD_CRC_FAIL;
  }
  
  /* 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;
  }
}
 
static uint32_t SDMMC_GetCmdResp2(SDMMC_TypeDef *SDMMCx)
{
  uint32_t sta_reg;
  /* 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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    sta_reg = SDMMCx->STA;
  }while(((sta_reg & (SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT)) == 0U) ||
         ((sta_reg & SDMMC_FLAG_CMDACT) != 0U ));
    
  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_CMD_FLAGS);
  }
 
  return SDMMC_ERROR_NONE;
}
 
static uint32_t SDMMC_GetCmdResp3(SDMMC_TypeDef *SDMMCx)
{
  uint32_t sta_reg;
  /* 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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    sta_reg = SDMMCx->STA;
  }while(((sta_reg & (SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT)) == 0U) ||
         ((sta_reg & SDMMC_FLAG_CMDACT) != 0U ));
    
  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_CMD_FLAGS);
  }
  
  return SDMMC_ERROR_NONE;
}
 
static uint32_t SDMMC_GetCmdResp6(SDMMC_TypeDef *SDMMCx, uint8_t SD_CMD, uint16_t *pRCA)
{
  uint32_t response_r1;
  uint32_t sta_reg;
 
  /* 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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    sta_reg = SDMMCx->STA;
  }while(((sta_reg & (SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT)) == 0U) ||
         ((sta_reg & SDMMC_FLAG_CMDACT) != 0U ));
    
  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
  {
    /* Nothing to do */
  }
  
  /* 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_CMD_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;
  }
}
 
static uint32_t SDMMC_GetCmdResp7(SDMMC_TypeDef *SDMMCx)
{
  uint32_t sta_reg;
  /* 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 / 8U /1000U);
  
  do
  {
    if (count-- == 0U)
    {
      return SDMMC_ERROR_TIMEOUT;
    }
    sta_reg = SDMMCx->STA;
  }while(((sta_reg & (SDMMC_FLAG_CCRCFAIL | SDMMC_FLAG_CMDREND | SDMMC_FLAG_CTIMEOUT)) == 0U) ||
         ((sta_reg & SDMMC_FLAG_CMDACT) != 0U ));
    
  if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT))
  {
    /* Card is SD V2.0 compliant */
    __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CTIMEOUT);
    
    return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  }
  else if(__SDMMC_GET_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL))
  {
    /* Card is SD V2.0 compliant */
    __SDMMC_CLEAR_FLAG(SDMMCx, SDMMC_FLAG_CCRCFAIL);
    
    return SDMMC_ERROR_CMD_CRC_FAIL;
  }
  else
  {
    /* Nothing to do */
  }
  
  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;
  
}
 
#endif /* HAL_SD_MODULE_ENABLED || HAL_MMC_MODULE_ENABLED */
 
#endif /* SDMMC1 */
 
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/