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/**

  ******************************************************************************

  * @file    stm32f1xx_hal_pccard.c

  * @author  MCD Application Team

  * @version V1.0.4

  * @date    29-April-2016

  * @brief   PCCARD HAL module driver.

  *          This file provides a generic firmware to drive PCCARD memories mounted

  *          as external device.

  *        

  @verbatim

 ===============================================================================

                        ##### How to use this driver #####

 ===============================================================================  

   [..]

     This driver is a generic layered driver which contains a set of APIs used to

     control PCCARD/compact flash memories. It uses the FSMC/FSMC layer functions

     to interface with PCCARD devices. This driver is used for:

    (+) PCCARD/compact flash memory configuration sequence using the function

        HAL_PCCARD_Init() with control and timing parameters for both common and

        attribute spaces.

    (+) Read PCCARD/compact flash memory maker and device IDs using the function

        HAL_PCCARD_Read_ID(). The read information is stored in the CompactFlash_ID

        structure declared by the function caller.

    (+) Access PCCARD/compact flash memory by read/write operations using the functions

        HAL_PCCARD_Read_Sector()/HAL_PCCARD_Write_Sector(), to read/write sector.

    (+) Perform PCCARD/compact flash Reset chip operation using the function HAL_PCCARD_Reset().

    (+) Perform PCCARD/compact flash erase sector operation using the function

        HAL_PCCARD_Erase_Sector().

    (+) Read the PCCARD/compact flash status operation using the function HAL_PCCARD_ReadStatus().

    (+) You can monitor the PCCARD/compact flash  device HAL state by calling the function

        HAL_PCCARD_GetState()    

   [..]

     (@) This driver is a set of generic APIs which handle standard PCCARD/compact flash

         operations. If a PCCARD/compact flash device contains different operations

         and/or implementations, it should be implemented separately.

  @endverbatim

  ******************************************************************************

  * @attention

  *

  * <h2><center>&copy; COPYRIGHT(c) 2016 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 "stm32f1xx_hal.h"

/** @addtogroup STM32F1xx_HAL_Driver

  * @{

  */

#ifdef HAL_PCCARD_MODULE_ENABLED

#if defined (STM32F101xE) || defined(STM32F103xE) || defined(STM32F101xG) || defined(STM32F103xG)

/** @defgroup PCCARD PCCARD

  * @brief PCCARD HAL module driver

  * @{

  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/** @defgroup PCCARD_Private_Constants PCCARD Private Constants

  * @{

  */

#define PCCARD_TIMEOUT_READ_ID      (uint32_t)0x0000FFFF

#define PCCARD_TIMEOUT_SECTOR       (uint32_t)0x0000FFFF

#define PCCARD_TIMEOUT_STATUS       (uint32_t)0x01000000

#define PCCARD_STATUS_OK            (uint8_t)0x58

#define PCCARD_STATUS_WRITE_OK      (uint8_t)0x50

/**

  * @}

  */

/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/

/* Exported functions ---------------------------------------------------------*/

/** @defgroup PCCARD_Exported_Functions PCCARD Exported Functions

  * @{

  */

/** @defgroup PCCARD_Exported_Functions_Group1 Initialization and de-initialization functions

  * @brief    Initialization and Configuration functions

  *

  @verbatim    

  ==============================================================================

          ##### PCCARD Initialization and de-initialization functions #####

  ==============================================================================

  [..]  

    This section provides functions allowing to initialize/de-initialize

    the PCCARD memory

@endverbatim

  * @{

  */

/**

  * @brief  Perform the PCCARD memory Initialization sequence

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @param  ComSpaceTiming: Common space timing structure

  * @param  AttSpaceTiming: Attribute space timing structure

  * @param  IOSpaceTiming: IO space timing structure    

  * @retval HAL status

  */

HAL_StatusTypeDef HAL_PCCARD_Init(PCCARD_HandleTypeDef *hpccard, FSMC_NAND_PCC_TimingTypeDef *ComSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *AttSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *IOSpaceTiming)

{

  /* Check the PCCARD controller state */

  if(hpccard == NULL)

  {

     return HAL_ERROR;

  }

  if(hpccard->State == HAL_PCCARD_STATE_RESET)

  {  

    /* Allocate lock resource and initialize it */

    hpccard->Lock = HAL_UNLOCKED;

    /* Initialize the low level hardware (MSP) */

    HAL_PCCARD_MspInit(hpccard);

  }

  /* Initialize the PCCARD state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;    

  /* Initialize PCCARD control Interface */

  FSMC_PCCARD_Init(hpccard->Instance, &(hpccard->Init));

  /* Init PCCARD common space timing Interface */

  FSMC_PCCARD_CommonSpace_Timing_Init(hpccard->Instance, ComSpaceTiming);

  /* Init PCCARD attribute space timing Interface */  

  FSMC_PCCARD_AttributeSpace_Timing_Init(hpccard->Instance, AttSpaceTiming);

  /* Init PCCARD IO space timing Interface */  

  FSMC_PCCARD_IOSpace_Timing_Init(hpccard->Instance, IOSpaceTiming);

  /* Enable the PCCARD device */

  __FSMC_PCCARD_ENABLE(hpccard->Instance);

  /* Update the PCCARD state */

  hpccard->State = HAL_PCCARD_STATE_READY;  

  return HAL_OK;

}

/**

  * @brief  Perform the PCCARD memory De-initialization sequence

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval HAL status

  */

HAL_StatusTypeDef  HAL_PCCARD_DeInit(PCCARD_HandleTypeDef *hpccard)

{

  /* De-Initialize the low level hardware (MSP) */

  HAL_PCCARD_MspDeInit(hpccard);

  /* Configure the PCCARD registers with their reset values */

  FSMC_PCCARD_DeInit(hpccard->Instance);

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_RESET;

  /* Release Lock */

  __HAL_UNLOCK(hpccard);

  return HAL_OK;

}

/**

  * @brief  PCCARD MSP Init

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval None

  */

__weak void HAL_PCCARD_MspInit(PCCARD_HandleTypeDef *hpccard)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(hpccard);

  /* NOTE : This function Should not be modified, when the callback is needed,

            the HAL_PCCARD_MspInit could be implemented in the user file

   */

}

/**

  * @brief  PCCARD MSP DeInit

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval None

  */

__weak void HAL_PCCARD_MspDeInit(PCCARD_HandleTypeDef *hpccard)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(hpccard);

  /* NOTE : This function Should not be modified, when the callback is needed,

            the HAL_PCCARD_MspDeInit could be implemented in the user file

   */

}

/**

  * @}

  */

/** @defgroup PCCARD_Exported_Functions_Group2 Input Output and memory functions

  * @brief    Input Output and memory control functions

  *

  @verbatim    

  ==============================================================================

                ##### PCCARD Input Output and memory functions #####

  ==============================================================================

  [..]  

    This section provides functions allowing to use and control the PCCARD memory

@endverbatim

  * @{

  */

/**

  * @brief  Read Compact Flash's ID.

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @param  CompactFlash_ID: Compact flash ID structure.  

  * @param  pStatus: pointer to compact flash status        

  * @retval HAL status

  *  

  */

HAL_StatusTypeDef HAL_PCCARD_Read_ID(PCCARD_HandleTypeDef *hpccard, uint8_t CompactFlash_ID[], uint8_t *pStatus)

{

  uint32_t timeout = PCCARD_TIMEOUT_READ_ID, index = 0;

  uint8_t status = 0;

  /* Process Locked */

  __HAL_LOCK(hpccard);  

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_BUSY;

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;

  /* Initialize the CF status */

  *pStatus = PCCARD_READY;  

  /* Send the Identify Command */

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)  = 0xECEC;

  /* Read CF IDs and timeout treatment */

  do

  {

     /* Read the CF status */

     status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

     timeout--;

  }while((status != PCCARD_STATUS_OK) && timeout);

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }

  else

  {

     /* Read CF ID bytes */

    for(index = 0; index < 16; index++)

    {

      CompactFlash_ID[index] = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_DATA);

    }    

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hpccard);  

  return HAL_OK;

}

/**

  * @brief  Read sector from PCCARD memory

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @param  pBuffer: pointer to destination read buffer

  * @param  SectorAddress: Sector address to read

  * @param  pStatus: pointer to CF status

  * @retval HAL status

  */    

HAL_StatusTypeDef HAL_PCCARD_Read_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus)

{

  uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;

  uint8_t status = 0;

  /* Process Locked */

  __HAL_LOCK(hpccard);

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_BUSY;

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;

  /* Initialize CF status */

  *pStatus = PCCARD_READY;

  /* Set the parameters to write a sector */

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = (uint16_t)0xE4A0;  

  do

  {

    /* wait till the Status = 0x80 */

    status =  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }while((status == 0x80) && timeout);

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }

  timeout = 0xFFFF;

  do

  {

    /* wait till the Status = PCCARD_STATUS_OK */

    status =  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }while((status != PCCARD_STATUS_OK) && timeout);

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }

  /* Read bytes */

  for(; index < PCCARD_SECTOR_SIZE; index++)

  {

    *(uint16_t *)pBuffer++ = *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR);

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hpccard);

  return HAL_OK;

}

/**

  * @brief  Write sector to PCCARD memory

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @param  pBuffer: pointer to source write buffer

  * @param  SectorAddress: Sector address to write

  * @param  pStatus: pointer to CF status

  * @retval HAL status

  */

HAL_StatusTypeDef HAL_PCCARD_Write_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress,  uint8_t *pStatus)

{

  uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;

  uint8_t status = 0;

  /* Process Locked */

  __HAL_LOCK(hpccard);  

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_BUSY;

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;

  /* Initialize CF status */

  *pStatus = PCCARD_READY;  

  /* Set the parameters to write a sector */

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);

  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = (uint16_t)0x30A0;

  do

  {

    /* Wait till the Status = PCCARD_STATUS_OK */

    status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }while((status != PCCARD_STATUS_OK) && timeout);

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }

  /* Write bytes */

  for(; index < PCCARD_SECTOR_SIZE; index++)

  {

    *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR) = *(uint16_t *)pBuffer++;

  }

  do

  {

    /* Wait till the Status = PCCARD_STATUS_WRITE_OK */

    status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }while((status != PCCARD_STATUS_WRITE_OK) && timeout);

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }  

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hpccard);  

  return HAL_OK;

}

/**

  * @brief  Erase sector from PCCARD memory

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @param  SectorAddress: Sector address to erase

  * @param  pStatus: pointer to CF status

  * @retval HAL status

  */

HAL_StatusTypeDef  HAL_PCCARD_Erase_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t SectorAddress, uint8_t *pStatus)

{

  uint32_t timeout = 0x400;

  uint8_t status = 0;

  /* Process Locked */

  __HAL_LOCK(hpccard);  

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_BUSY;

  }

  /* Update the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;

  /* Initialize CF status */

  *pStatus = PCCARD_READY;

  /* Set the parameters to write a sector */

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_LOW)  = 0x00;

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = 0x00;

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_NUMBER) = SectorAddress;

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = 0x01;

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CARD_HEAD)     = 0xA0;

  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = ATA_ERASE_SECTOR_CMD;

  /* wait till the CF is ready */

  status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

  while((status != PCCARD_STATUS_WRITE_OK) && timeout)

  {

    status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }

  if(timeout == 0)

  {

    *pStatus = PCCARD_TIMEOUT_ERROR;

  }

  /* Check the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hpccard);  

  return HAL_OK;

}

/**

  * @brief  Reset the PCCARD memory

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval HAL status

  */

HAL_StatusTypeDef HAL_PCCARD_Reset(PCCARD_HandleTypeDef *hpccard)

{

  /* Process Locked */

  __HAL_LOCK(hpccard);  

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_BUSY;

  }

  /* Provide an SW reset and Read and verify the:

   - CF Configuration Option Register at address 0x98000200 --> 0x80

   - Card Configuration and Status Register at address 0x98000202 --> 0x00

   - Pin Replacement Register  at address 0x98000204 --> 0x0C

   - Socket and Copy Register at address 0x98000206 --> 0x00

  */

  /* Check the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_BUSY;

  *(__IO uint8_t *)(PCCARD_ATTRIBUTE_SPACE_ADDRESS | ATA_CARD_CONFIGURATION) = 0x01;

  /* Check the PCCARD controller state */

  hpccard->State = HAL_PCCARD_STATE_READY;

  /* Process unlocked */

  __HAL_UNLOCK(hpccard);  

  return HAL_OK;

}

/**

  * @brief  This function handles PCCARD device interrupt request.

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval HAL status

*/

void HAL_PCCARD_IRQHandler(PCCARD_HandleTypeDef *hpccard)

{

  /* Check PCCARD interrupt Rising edge flag */

  if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE))

  {

    /* PCCARD interrupt callback*/

    HAL_PCCARD_ITCallback(hpccard);

    /* Clear PCCARD interrupt Rising edge pending bit */

    __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE);

  }

  /* Check PCCARD interrupt Level flag */

  if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL))

  {

    /* PCCARD interrupt callback*/

    HAL_PCCARD_ITCallback(hpccard);

    /* Clear PCCARD interrupt Level pending bit */

    __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL);

  }

  /* Check PCCARD interrupt Falling edge flag */

  if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE))

  {

    /* PCCARD interrupt callback*/

    HAL_PCCARD_ITCallback(hpccard);

    /* Clear PCCARD interrupt Falling edge pending bit */

    __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE);

  }

  /* Check PCCARD interrupt FIFO empty flag */

  if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT))

  {

    /* PCCARD interrupt callback*/

    HAL_PCCARD_ITCallback(hpccard);

    /* Clear PCCARD interrupt FIFO empty pending bit */

    __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT);

  }  

}

/**

  * @brief  PCCARD interrupt feature callback

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval None

  */

__weak void HAL_PCCARD_ITCallback(PCCARD_HandleTypeDef *hpccard)

{

  /* Prevent unused argument(s) compilation warning */

  UNUSED(hpccard);

  /* NOTE : This function Should not be modified, when the callback is needed,

            the HAL_PCCARD_ITCallback could be implemented in the user file

   */

}

/**

  * @}

  */

/** @defgroup PCCARD_Exported_Functions_Group3 Peripheral State functions

 *  @brief   Peripheral State functions

 *

@verbatim  

  ==============================================================================

                   ##### PCCARD Peripheral State functions #####

  ==============================================================================  

  [..]

    This subsection permits to get in run-time the status of the PCCARD controller

    and the data flow.

@endverbatim

  * @{

  */

/**

  * @brief  return the PCCARD controller state

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.

  * @retval HAL state

  */

HAL_PCCARD_StateTypeDef HAL_PCCARD_GetState(PCCARD_HandleTypeDef *hpccard)

{

  return hpccard->State;

}  

/**

  * @brief  Get the compact flash memory status

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.      

  * @retval New status of the CF operation. This parameter can be:

  *          - CompactFlash_TIMEOUT_ERROR: when the previous operation generate

  *            a Timeout error

  *          - CompactFlash_READY: when memory is ready for the next operation    

  *                

  */

HAL_PCCARD_StatusTypeDef HAL_PCCARD_GetStatus(PCCARD_HandleTypeDef *hpccard)

{

  uint32_t timeout = PCCARD_TIMEOUT_STATUS, status_cf = 0;  

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_PCCARD_STATUS_ONGOING;

  }

  status_cf =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

  while((status_cf == PCCARD_BUSY) && timeout)

  {

    status_cf =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

    timeout--;

  }

  if(timeout == 0)

  {          

    status_cf =  PCCARD_TIMEOUT_ERROR;      

  }  

  /* Return the operation status */

  return (HAL_PCCARD_StatusTypeDef) status_cf;      

}

/**

  * @brief  Reads the Compact Flash memory status using the Read status command

  * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains

  *                the configuration information for PCCARD module.      

  * @retval The status of the Compact Flash memory. This parameter can be:

  *          - CompactFlash_BUSY: when memory is busy

  *          - CompactFlash_READY: when memory is ready for the next operation    

  *          - CompactFlash_ERROR: when the previous operation gererates error                

  */

HAL_PCCARD_StatusTypeDef HAL_PCCARD_ReadStatus(PCCARD_HandleTypeDef *hpccard)

{

  uint8_t data = 0, status_cf = PCCARD_BUSY;

  /* Check the PCCARD controller state */

  if(hpccard->State == HAL_PCCARD_STATE_BUSY)

  {

     return HAL_PCCARD_STATUS_ONGOING;

  }

  /* Read status operation */

  data =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);

  if((data & PCCARD_TIMEOUT_ERROR) == PCCARD_TIMEOUT_ERROR)

  {

    status_cf = PCCARD_TIMEOUT_ERROR;

  }

  else if((data & PCCARD_READY) == PCCARD_READY)

  {

    status_cf = PCCARD_READY;

  }

  return (HAL_PCCARD_StatusTypeDef) status_cf;

}  

/**

  * @}

  */

/**

  * @}

  */

/**

  * @}

  */

#endif /* STM32F101xE || STM32F103xE || STM32F101xG || STM32F103xG */

#endif /* HAL_PCCARD_MODULE_ENABLED */  

/**

  * @}

  */

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