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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f1xx_hal_pccard.c
  4.   * @author  MCD Application Team
  5.   * @version V1.0.1
  6.   * @date    31-July-2015
  7.   * @brief   PCCARD HAL module driver.
  8.   *          This file provides a generic firmware to drive PCCARD memories mounted
  9.   *          as external device.
  10.   *        
  11.   @verbatim
  12.  ===============================================================================
  13.                         ##### How to use this driver #####
  14.  ===============================================================================  
  15.    [..]
  16.      This driver is a generic layered driver which contains a set of APIs used to
  17.      control PCCARD/compact flash memories. It uses the FSMC/FSMC layer functions
  18.      to interface with PCCARD devices. This driver is used for:
  19.    
  20.     (+) PCCARD/compact flash memory configuration sequence using the function
  21.         HAL_PCCARD_Init() with control and timing parameters for both common and
  22.         attribute spaces.
  23.            
  24.     (+) Read PCCARD/compact flash memory maker and device IDs using the function
  25.         HAL_PCCARD_Read_ID(). The read information is stored in the CompactFlash_ID
  26.         structure declared by the function caller.
  27.        
  28.     (+) Access PCCARD/compact flash memory by read/write operations using the functions
  29.         HAL_PCCARD_Read_Sector()/HAL_PCCARD_Write_Sector(), to read/write sector.
  30.        
  31.     (+) Perform PCCARD/compact flash Reset chip operation using the function HAL_PCCARD_Reset().
  32.        
  33.     (+) Perform PCCARD/compact flash erase sector operation using the function
  34.         HAL_PCCARD_Erase_Sector().
  35.    
  36.     (+) Read the PCCARD/compact flash status operation using the function HAL_PCCARD_ReadStatus().
  37.      
  38.     (+) You can monitor the PCCARD/compact flash  device HAL state by calling the function
  39.         HAL_PCCARD_GetState()    
  40.        
  41.    [..]
  42.      (@) This driver is a set of generic APIs which handle standard PCCARD/compact flash
  43.          operations. If a PCCARD/compact flash device contains different operations
  44.          and/or implementations, it should be implemented separately.
  45.    
  46.   @endverbatim
  47.   ******************************************************************************
  48.   * @attention
  49.   *
  50.   * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
  51.   *
  52.   * Redistribution and use in source and binary forms, with or without modification,
  53.   * are permitted provided that the following conditions are met:
  54.   *   1. Redistributions of source code must retain the above copyright notice,
  55.   *      this list of conditions and the following disclaimer.
  56.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  57.   *      this list of conditions and the following disclaimer in the documentation
  58.   *      and/or other materials provided with the distribution.
  59.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  60.   *      may be used to endorse or promote products derived from this software
  61.   *      without specific prior written permission.
  62.   *
  63.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  64.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  65.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  66.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  67.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  68.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  69.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  70.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  71.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  72.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  73.   *
  74.   ******************************************************************************
  75.   */
  76.  
  77. /* Includes ------------------------------------------------------------------*/
  78. #include "stm32f1xx_hal.h"
  79.  
  80. /** @addtogroup STM32F1xx_HAL_Driver
  81.   * @{
  82.   */
  83.  
  84. #ifdef HAL_PCCARD_MODULE_ENABLED
  85. #if defined (STM32F101xE) || defined(STM32F103xE) || defined(STM32F101xG) || defined(STM32F103xG)
  86.  
  87. /** @defgroup PCCARD PCCARD
  88.   * @brief PCCARD HAL module driver
  89.   * @{
  90.   */
  91.  
  92. /* Private typedef -----------------------------------------------------------*/
  93. /* Private define ------------------------------------------------------------*/
  94. /** @defgroup PCCARD_Private_Constants PCCARD Private Constants
  95.   * @{
  96.   */
  97.  
  98. #define PCCARD_TIMEOUT_READ_ID      (uint32_t)0x0000FFFF
  99. #define PCCARD_TIMEOUT_SECTOR       (uint32_t)0x0000FFFF
  100. #define PCCARD_TIMEOUT_STATUS       (uint32_t)0x01000000
  101.  
  102. #define PCCARD_STATUS_OK            (uint8_t)0x58
  103. #define PCCARD_STATUS_WRITE_OK      (uint8_t)0x50
  104. /**
  105.   * @}
  106.   */
  107.  
  108. /* Private macro -------------------------------------------------------------*/
  109. /* Private variables ---------------------------------------------------------*/
  110. /* Private function prototypes -----------------------------------------------*/
  111. /* Exported functions ---------------------------------------------------------*/
  112.  
  113. /** @defgroup PCCARD_Exported_Functions PCCARD Exported Functions
  114.   * @{
  115.   */
  116.  
  117. /** @defgroup PCCARD_Exported_Functions_Group1 Initialization and de-initialization functions
  118.   * @brief    Initialization and Configuration functions
  119.   *
  120.   @verbatim    
  121.   ==============================================================================
  122.           ##### PCCARD Initialization and de-initialization functions #####
  123.   ==============================================================================
  124.   [..]  
  125.     This section provides functions allowing to initialize/de-initialize
  126.     the PCCARD memory
  127.  
  128. @endverbatim
  129.   * @{
  130.   */
  131.    
  132. /**
  133.   * @brief  Perform the PCCARD memory Initialization sequence
  134.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  135.   *                the configuration information for PCCARD module.
  136.   * @param  ComSpaceTiming: Common space timing structure
  137.   * @param  AttSpaceTiming: Attribute space timing structure
  138.   * @param  IOSpaceTiming: IO space timing structure    
  139.   * @retval HAL status
  140.   */
  141. HAL_StatusTypeDef HAL_PCCARD_Init(PCCARD_HandleTypeDef *hpccard, FSMC_NAND_PCC_TimingTypeDef *ComSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *AttSpaceTiming, FSMC_NAND_PCC_TimingTypeDef *IOSpaceTiming)
  142. {
  143.   /* Check the PCCARD controller state */
  144.   if(hpccard == NULL)
  145.   {
  146.      return HAL_ERROR;
  147.   }
  148.  
  149.   if(hpccard->State == HAL_PCCARD_STATE_RESET)
  150.   {  
  151.     /* Allocate lock resource and initialize it */
  152.     hpccard->Lock = HAL_UNLOCKED;
  153.    
  154.     /* Initialize the low level hardware (MSP) */
  155.     HAL_PCCARD_MspInit(hpccard);
  156.   }
  157.  
  158.   /* Initialize the PCCARD state */
  159.   hpccard->State = HAL_PCCARD_STATE_BUSY;    
  160.  
  161.   /* Initialize PCCARD control Interface */
  162.   FSMC_PCCARD_Init(hpccard->Instance, &(hpccard->Init));
  163.  
  164.   /* Init PCCARD common space timing Interface */
  165.   FSMC_PCCARD_CommonSpace_Timing_Init(hpccard->Instance, ComSpaceTiming);
  166.  
  167.   /* Init PCCARD attribute space timing Interface */  
  168.   FSMC_PCCARD_AttributeSpace_Timing_Init(hpccard->Instance, AttSpaceTiming);
  169.  
  170.   /* Init PCCARD IO space timing Interface */  
  171.   FSMC_PCCARD_IOSpace_Timing_Init(hpccard->Instance, IOSpaceTiming);
  172.  
  173.   /* Enable the PCCARD device */
  174.   __FSMC_PCCARD_ENABLE(hpccard->Instance);
  175.  
  176.   /* Update the PCCARD state */
  177.   hpccard->State = HAL_PCCARD_STATE_READY;  
  178.  
  179.   return HAL_OK;
  180.  
  181. }
  182.  
  183. /**
  184.   * @brief  Perform the PCCARD memory De-initialization sequence
  185.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  186.   *                the configuration information for PCCARD module.
  187.   * @retval HAL status
  188.   */
  189. HAL_StatusTypeDef  HAL_PCCARD_DeInit(PCCARD_HandleTypeDef *hpccard)
  190. {
  191.   /* De-Initialize the low level hardware (MSP) */
  192.   HAL_PCCARD_MspDeInit(hpccard);
  193.    
  194.   /* Configure the PCCARD registers with their reset values */
  195.   FSMC_PCCARD_DeInit(hpccard->Instance);
  196.  
  197.   /* Update the PCCARD controller state */
  198.   hpccard->State = HAL_PCCARD_STATE_RESET;
  199.  
  200.   /* Release Lock */
  201.   __HAL_UNLOCK(hpccard);
  202.  
  203.   return HAL_OK;
  204. }
  205.  
  206. /**
  207.   * @brief  PCCARD MSP Init
  208.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  209.   *                the configuration information for PCCARD module.
  210.   * @retval None
  211.   */
  212. __weak void HAL_PCCARD_MspInit(PCCARD_HandleTypeDef *hpccard)
  213. {
  214.   /* NOTE : This function Should not be modified, when the callback is needed,
  215.             the HAL_PCCARD_MspInit could be implemented in the user file
  216.    */
  217. }
  218.  
  219. /**
  220.   * @brief  PCCARD MSP DeInit
  221.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  222.   *                the configuration information for PCCARD module.
  223.   * @retval None
  224.   */
  225. __weak void HAL_PCCARD_MspDeInit(PCCARD_HandleTypeDef *hpccard)
  226. {
  227.   /* NOTE : This function Should not be modified, when the callback is needed,
  228.             the HAL_PCCARD_MspDeInit could be implemented in the user file
  229.    */
  230. }
  231.  
  232. /**
  233.   * @}
  234.   */
  235.  
  236. /** @defgroup PCCARD_Exported_Functions_Group2 Input Output and memory functions
  237.   * @brief    Input Output and memory control functions
  238.   *
  239.   @verbatim    
  240.   ==============================================================================
  241.                 ##### PCCARD Input Output and memory functions #####
  242.   ==============================================================================
  243.   [..]  
  244.     This section provides functions allowing to use and control the PCCARD memory
  245.  
  246. @endverbatim
  247.   * @{
  248.   */
  249.  
  250. /**
  251.   * @brief  Read Compact Flash's ID.
  252.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  253.   *                the configuration information for PCCARD module.
  254.   * @param  CompactFlash_ID: Compact flash ID structure.  
  255.   * @param  pStatus: pointer to compact flash status        
  256.   * @retval HAL status
  257.   *  
  258.   */
  259. HAL_StatusTypeDef HAL_PCCARD_Read_ID(PCCARD_HandleTypeDef *hpccard, uint8_t CompactFlash_ID[], uint8_t *pStatus)
  260. {
  261.   uint32_t timeout = PCCARD_TIMEOUT_READ_ID, index = 0;
  262.   uint8_t status = 0;
  263.  
  264.   /* Process Locked */
  265.   __HAL_LOCK(hpccard);  
  266.  
  267.   /* Check the PCCARD controller state */
  268.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  269.   {
  270.      return HAL_BUSY;
  271.   }
  272.  
  273.   /* Update the PCCARD controller state */
  274.   hpccard->State = HAL_PCCARD_STATE_BUSY;
  275.  
  276.   /* Initialize the CF status */
  277.   *pStatus = PCCARD_READY;  
  278.  
  279.   /* Send the Identify Command */
  280.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)  = 0xECEC;
  281.    
  282.   /* Read CF IDs and timeout treatment */
  283.   do
  284.   {
  285.      /* Read the CF status */
  286.      status = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  287.      
  288.      timeout--;
  289.   }while((status != PCCARD_STATUS_OK) && timeout);
  290.  
  291.   if(timeout == 0)
  292.   {
  293.     *pStatus = PCCARD_TIMEOUT_ERROR;
  294.   }
  295.   else
  296.   {
  297.      /* Read CF ID bytes */
  298.     for(index = 0; index < 16; index++)
  299.     {
  300.       CompactFlash_ID[index] = *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_DATA);
  301.     }    
  302.   }
  303.  
  304.   /* Update the PCCARD controller state */
  305.   hpccard->State = HAL_PCCARD_STATE_READY;
  306.  
  307.   /* Process unlocked */
  308.   __HAL_UNLOCK(hpccard);  
  309.  
  310.   return HAL_OK;
  311. }
  312.    
  313. /**
  314.   * @brief  Read sector from PCCARD memory
  315.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  316.   *                the configuration information for PCCARD module.
  317.   * @param  pBuffer: pointer to destination read buffer
  318.   * @param  SectorAddress: Sector address to read
  319.   * @param  pStatus: pointer to CF status
  320.   * @retval HAL status
  321.   */    
  322. HAL_StatusTypeDef HAL_PCCARD_Read_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress, uint8_t *pStatus)
  323. {
  324.   uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;
  325.   uint8_t status = 0;
  326.  
  327.   /* Process Locked */
  328.   __HAL_LOCK(hpccard);
  329.  
  330.   /* Check the PCCARD controller state */
  331.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  332.   {
  333.      return HAL_BUSY;
  334.   }
  335.  
  336.   /* Update the PCCARD controller state */
  337.   hpccard->State = HAL_PCCARD_STATE_BUSY;
  338.  
  339.   /* Initialize CF status */
  340.   *pStatus = PCCARD_READY;
  341.  
  342.   /* Set the parameters to write a sector */
  343.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;
  344.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);
  345.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = (uint16_t)0xE4A0;  
  346.  
  347.   do
  348.   {
  349.     /* wait till the Status = 0x80 */
  350.     status =  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  351.     timeout--;
  352.   }while((status == 0x80) && timeout);
  353.  
  354.   if(timeout == 0)
  355.   {
  356.     *pStatus = PCCARD_TIMEOUT_ERROR;
  357.   }
  358.  
  359.   timeout = 0xFFFF;
  360.  
  361.   do
  362.   {
  363.     /* wait till the Status = PCCARD_STATUS_OK */
  364.     status =  *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  365.     timeout--;
  366.   }while((status != PCCARD_STATUS_OK) && timeout);
  367.  
  368.   if(timeout == 0)
  369.   {
  370.     *pStatus = PCCARD_TIMEOUT_ERROR;
  371.   }
  372.  
  373.   /* Read bytes */
  374.   for(; index < PCCARD_SECTOR_SIZE; index++)
  375.   {
  376.     *(uint16_t *)pBuffer++ = *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR);
  377.   }
  378.  
  379.   /* Update the PCCARD controller state */
  380.   hpccard->State = HAL_PCCARD_STATE_READY;
  381.  
  382.   /* Process unlocked */
  383.   __HAL_UNLOCK(hpccard);
  384.      
  385.   return HAL_OK;
  386. }
  387.  
  388.  
  389. /**
  390.   * @brief  Write sector to PCCARD memory
  391.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  392.   *                the configuration information for PCCARD module.
  393.   * @param  pBuffer: pointer to source write buffer
  394.   * @param  SectorAddress: Sector address to write
  395.   * @param  pStatus: pointer to CF status
  396.   * @retval HAL status
  397.   */
  398. HAL_StatusTypeDef HAL_PCCARD_Write_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t *pBuffer, uint16_t SectorAddress,  uint8_t *pStatus)
  399. {
  400.   uint32_t timeout = PCCARD_TIMEOUT_SECTOR, index = 0;
  401.   uint8_t status = 0;
  402.  
  403.   /* Process Locked */
  404.   __HAL_LOCK(hpccard);  
  405.  
  406.   /* Check the PCCARD controller state */
  407.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  408.   {
  409.      return HAL_BUSY;
  410.   }
  411.    
  412.   /* Update the PCCARD controller state */
  413.   hpccard->State = HAL_PCCARD_STATE_BUSY;
  414.    
  415.   /* Initialize CF status */
  416.   *pStatus = PCCARD_READY;  
  417.    
  418.   /* Set the parameters to write a sector */
  419.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = (uint16_t)0x00;
  420.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = ((uint16_t)0x0100 ) | ((uint16_t)SectorAddress);
  421.   *(__IO uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = (uint16_t)0x30A0;
  422.  
  423.   do
  424.   {
  425.     /* Wait till the Status = PCCARD_STATUS_OK */
  426.     status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  427.     timeout--;
  428.   }while((status != PCCARD_STATUS_OK) && timeout);
  429.  
  430.   if(timeout == 0)
  431.   {
  432.     *pStatus = PCCARD_TIMEOUT_ERROR;
  433.   }
  434.  
  435.   /* Write bytes */
  436.   for(; index < PCCARD_SECTOR_SIZE; index++)
  437.   {
  438.     *(uint16_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR) = *(uint16_t *)pBuffer++;
  439.   }
  440.  
  441.   do
  442.   {
  443.     /* Wait till the Status = PCCARD_STATUS_WRITE_OK */
  444.     status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  445.     timeout--;
  446.   }while((status != PCCARD_STATUS_WRITE_OK) && timeout);
  447.  
  448.   if(timeout == 0)
  449.   {
  450.     *pStatus = PCCARD_TIMEOUT_ERROR;
  451.   }  
  452.  
  453.   /* Update the PCCARD controller state */
  454.   hpccard->State = HAL_PCCARD_STATE_READY;
  455.  
  456.   /* Process unlocked */
  457.   __HAL_UNLOCK(hpccard);  
  458.  
  459.   return HAL_OK;
  460. }
  461.  
  462.  
  463. /**
  464.   * @brief  Erase sector from PCCARD memory
  465.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  466.   *                the configuration information for PCCARD module.
  467.   * @param  SectorAddress: Sector address to erase
  468.   * @param  pStatus: pointer to CF status
  469.   * @retval HAL status
  470.   */
  471. HAL_StatusTypeDef  HAL_PCCARD_Erase_Sector(PCCARD_HandleTypeDef *hpccard, uint16_t SectorAddress, uint8_t *pStatus)
  472. {
  473.   uint32_t timeout = 0x400;
  474.   uint8_t status = 0;
  475.  
  476.   /* Process Locked */
  477.   __HAL_LOCK(hpccard);  
  478.  
  479.   /* Check the PCCARD controller state */
  480.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  481.   {
  482.      return HAL_BUSY;
  483.   }
  484.  
  485.   /* Update the PCCARD controller state */
  486.   hpccard->State = HAL_PCCARD_STATE_BUSY;
  487.  
  488.   /* Initialize CF status */
  489.   *pStatus = PCCARD_READY;
  490.    
  491.   /* Set the parameters to write a sector */
  492.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_LOW)  = 0x00;
  493.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CYLINDER_HIGH) = 0x00;
  494.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_NUMBER) = SectorAddress;
  495.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_SECTOR_COUNT)  = 0x01;
  496.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_CARD_HEAD)     = 0xA0;
  497.   *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD)    = ATA_ERASE_SECTOR_CMD;
  498.  
  499.   /* wait till the CF is ready */
  500.   status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  501.  
  502.   while((status != PCCARD_STATUS_WRITE_OK) && timeout)
  503.   {
  504.     status =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  505.     timeout--;
  506.   }
  507.  
  508.   if(timeout == 0)
  509.   {
  510.     *pStatus = PCCARD_TIMEOUT_ERROR;
  511.   }
  512.  
  513.   /* Check the PCCARD controller state */
  514.   hpccard->State = HAL_PCCARD_STATE_READY;
  515.  
  516.   /* Process unlocked */
  517.   __HAL_UNLOCK(hpccard);  
  518.  
  519.   return HAL_OK;
  520. }
  521.  
  522. /**
  523.   * @brief  Reset the PCCARD memory
  524.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  525.   *                the configuration information for PCCARD module.
  526.   * @retval HAL status
  527.   */
  528. HAL_StatusTypeDef HAL_PCCARD_Reset(PCCARD_HandleTypeDef *hpccard)
  529. {
  530.   /* Process Locked */
  531.   __HAL_LOCK(hpccard);  
  532.  
  533.   /* Check the PCCARD controller state */
  534.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  535.   {
  536.      return HAL_BUSY;
  537.   }
  538.  
  539.   /* Provide an SW reset and Read and verify the:
  540.    - CF Configuration Option Register at address 0x98000200 --> 0x80
  541.    - Card Configuration and Status Register at address 0x98000202 --> 0x00
  542.    - Pin Replacement Register  at address 0x98000204 --> 0x0C
  543.    - Socket and Copy Register at address 0x98000206 --> 0x00
  544.   */
  545.  
  546.   /* Check the PCCARD controller state */
  547.   hpccard->State = HAL_PCCARD_STATE_BUSY;
  548.  
  549.   *(__IO uint8_t *)(PCCARD_ATTRIBUTE_SPACE_ADDRESS | ATA_CARD_CONFIGURATION) = 0x01;
  550.    
  551.   /* Check the PCCARD controller state */
  552.   hpccard->State = HAL_PCCARD_STATE_READY;
  553.  
  554.   /* Process unlocked */
  555.   __HAL_UNLOCK(hpccard);  
  556.  
  557.   return HAL_OK;
  558. }
  559.  
  560. /**
  561.   * @brief  This function handles PCCARD device interrupt request.
  562.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  563.   *                the configuration information for PCCARD module.
  564.   * @retval HAL status
  565. */
  566. void HAL_PCCARD_IRQHandler(PCCARD_HandleTypeDef *hpccard)
  567. {
  568.   /* Check PCCARD interrupt Rising edge flag */
  569.   if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE))
  570.   {
  571.     /* PCCARD interrupt callback*/
  572.     HAL_PCCARD_ITCallback(hpccard);
  573.  
  574.     /* Clear PCCARD interrupt Rising edge pending bit */
  575.     __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_RISING_EDGE);
  576.   }
  577.  
  578.   /* Check PCCARD interrupt Level flag */
  579.   if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL))
  580.   {
  581.     /* PCCARD interrupt callback*/
  582.     HAL_PCCARD_ITCallback(hpccard);
  583.  
  584.     /* Clear PCCARD interrupt Level pending bit */
  585.     __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_LEVEL);
  586.   }
  587.  
  588.   /* Check PCCARD interrupt Falling edge flag */
  589.   if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE))
  590.   {
  591.     /* PCCARD interrupt callback*/
  592.     HAL_PCCARD_ITCallback(hpccard);
  593.  
  594.     /* Clear PCCARD interrupt Falling edge pending bit */
  595.     __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FALLING_EDGE);
  596.   }
  597.  
  598.   /* Check PCCARD interrupt FIFO empty flag */
  599.   if(__FSMC_PCCARD_GET_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT))
  600.   {
  601.     /* PCCARD interrupt callback*/
  602.     HAL_PCCARD_ITCallback(hpccard);
  603.  
  604.     /* Clear PCCARD interrupt FIFO empty pending bit */
  605.     __FSMC_PCCARD_CLEAR_FLAG(hpccard->Instance, FSMC_FLAG_FEMPT);
  606.   }  
  607.  
  608. }
  609.  
  610. /**
  611.   * @brief  PCCARD interrupt feature callback
  612.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  613.   *                the configuration information for PCCARD module.
  614.   * @retval None
  615.   */
  616. __weak void HAL_PCCARD_ITCallback(PCCARD_HandleTypeDef *hpccard)
  617. {
  618.   /* NOTE : This function Should not be modified, when the callback is needed,
  619.             the HAL_PCCARD_ITCallback could be implemented in the user file
  620.    */
  621. }
  622.  
  623. /**
  624.   * @}
  625.   */
  626.  
  627. /** @defgroup PCCARD_Exported_Functions_Group3 Peripheral State functions
  628.  *  @brief   Peripheral State functions
  629.  *
  630. @verbatim  
  631.   ==============================================================================
  632.                    ##### PCCARD Peripheral State functions #####
  633.   ==============================================================================  
  634.   [..]
  635.     This subsection permits to get in run-time the status of the PCCARD controller
  636.     and the data flow.
  637.  
  638. @endverbatim
  639.   * @{
  640.   */
  641.  
  642. /**
  643.   * @brief  return the PCCARD controller state
  644.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  645.   *                the configuration information for PCCARD module.
  646.   * @retval HAL state
  647.   */
  648. HAL_PCCARD_StateTypeDef HAL_PCCARD_GetState(PCCARD_HandleTypeDef *hpccard)
  649. {
  650.   return hpccard->State;
  651. }  
  652.  
  653. /**
  654.   * @brief  Get the compact flash memory status
  655.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  656.   *                the configuration information for PCCARD module.      
  657.   * @retval New status of the CF operation. This parameter can be:
  658.   *          - CompactFlash_TIMEOUT_ERROR: when the previous operation generate
  659.   *            a Timeout error
  660.   *          - CompactFlash_READY: when memory is ready for the next operation    
  661.   *                
  662.   */
  663. HAL_PCCARD_StatusTypeDef HAL_PCCARD_GetStatus(PCCARD_HandleTypeDef *hpccard)
  664. {
  665.   uint32_t timeout = PCCARD_TIMEOUT_STATUS, status_cf = 0;  
  666.  
  667.   /* Check the PCCARD controller state */
  668.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  669.   {
  670.      return HAL_PCCARD_STATUS_ONGOING;
  671.   }
  672.  
  673.   status_cf =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  674.  
  675.   while((status_cf == PCCARD_BUSY) && timeout)
  676.   {
  677.     status_cf =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  678.     timeout--;
  679.   }
  680.  
  681.   if(timeout == 0)
  682.   {          
  683.     status_cf =  PCCARD_TIMEOUT_ERROR;      
  684.   }  
  685.  
  686.   /* Return the operation status */
  687.   return (HAL_PCCARD_StatusTypeDef) status_cf;      
  688. }
  689.  
  690. /**
  691.   * @brief  Reads the Compact Flash memory status using the Read status command
  692.   * @param  hpccard: pointer to a PCCARD_HandleTypeDef structure that contains
  693.   *                the configuration information for PCCARD module.      
  694.   * @retval The status of the Compact Flash memory. This parameter can be:
  695.   *          - CompactFlash_BUSY: when memory is busy
  696.   *          - CompactFlash_READY: when memory is ready for the next operation    
  697.   *          - CompactFlash_ERROR: when the previous operation gererates error                
  698.   */
  699. HAL_PCCARD_StatusTypeDef HAL_PCCARD_ReadStatus(PCCARD_HandleTypeDef *hpccard)
  700. {
  701.   uint8_t data = 0, status_cf = PCCARD_BUSY;
  702.  
  703.   /* Check the PCCARD controller state */
  704.   if(hpccard->State == HAL_PCCARD_STATE_BUSY)
  705.   {
  706.      return HAL_PCCARD_STATUS_ONGOING;
  707.   }
  708.  
  709.   /* Read status operation */
  710.   data =  *(__IO uint8_t *)(PCCARD_IO_SPACE_PRIMARY_ADDR | ATA_STATUS_CMD_ALTERNATE);
  711.  
  712.   if((data & PCCARD_TIMEOUT_ERROR) == PCCARD_TIMEOUT_ERROR)
  713.   {
  714.     status_cf = PCCARD_TIMEOUT_ERROR;
  715.   }
  716.   else if((data & PCCARD_READY) == PCCARD_READY)
  717.   {
  718.     status_cf = PCCARD_READY;
  719.   }
  720.  
  721.   return (HAL_PCCARD_StatusTypeDef) status_cf;
  722. }  
  723.  
  724. /**
  725.   * @}
  726.   */
  727.  
  728. /**
  729.   * @}
  730.   */
  731. /**
  732.   * @}
  733.   */
  734.  
  735. #endif /* STM32F101xE || STM32F103xE || STM32F101xG || STM32F103xG */
  736. #endif /* HAL_PCCARD_MODULE_ENABLED */  
  737.  
  738. /**
  739.   * @}
  740.   */
  741.  
  742. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  743.