stm32f7xx_ll_sdmmc.c

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/* Includes ------------------------------------------------------------------*/
#include "stm32f7xx_hal.h"

#if defined (HAL_SD_MODULE_ENABLED) || defined(HAL_MMC_MODULE_ENABLED)

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* 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;
  
  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)
{
  __IO uint32_t tmp = 0;

  /* 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_DataConfig(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;  
}

#endif /* (HAL_SD_MODULE_ENABLED) || (HAL_MMC_MODULE_ENABLED) */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/