1 files changed, 182 insertions, 0 deletions
diff --git a/Middlewares/Third_Party/FatFs/src/drivers/sdram_diskio_template_bspv1.c b/Middlewares/Third_Party/FatFs/src/drivers/sdram_diskio_template_bspv1.c
new file mode 100644
index 000000000..7386e2830
--- /dev/null
+++ b/Middlewares/Third_Party/FatFs/src/drivers/sdram_diskio_template_bspv1.c
@@ -0,0 +1,182 @@
+/**
+  ******************************************************************************
+  * @file    sdram_diskio_template_bspv1.c
+  * @author  MCD Application Team
+  * @brief   SDRAM Disk I/O template driver using BSP v1 API.
+  * This file needs to be copied under the application project
+  * alongside the respective header file.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017 STMicroelectronics. All rights reserved.
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                       opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+**/
+/* Includes ------------------------------------------------------------------*/
+#include "ff_gen_drv.h"
+#include "sdram_diskio.h"
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Block Size in Bytes */
+#define BLOCK_SIZE                512
+
+/* Private variables ---------------------------------------------------------*/
+/* Disk status */
+static volatile DSTATUS Stat = STA_NOINIT;
+
+/* Private function prototypes -----------------------------------------------*/
+DSTATUS SDRAMDISK_initialize (BYTE);
+DSTATUS SDRAMDISK_status (BYTE);
+DRESULT SDRAMDISK_read (BYTE, BYTE*, DWORD, UINT);
+#if _USE_WRITE == 1
+  DRESULT SDRAMDISK_write (BYTE, const BYTE*, DWORD, UINT);
+#endif /* _USE_WRITE == 1 */
+#if _USE_IOCTL == 1
+  DRESULT SDRAMDISK_ioctl (BYTE, BYTE, void*);
+#endif /* _USE_IOCTL == 1 */
+
+const Diskio_drvTypeDef  SDRAMDISK_Driver =
+{
+  SDRAMDISK_initialize,
+  SDRAMDISK_status,
+  SDRAMDISK_read,
+#if  _USE_WRITE
+  SDRAMDISK_write,
+#endif  /* _USE_WRITE == 1 */
+#if  _USE_IOCTL == 1
+  SDRAMDISK_ioctl,
+#endif /* _USE_IOCTL == 1 */
+};
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  Initializes a Drive
+  * @param  lun : not used
+  * @retval DSTATUS: Operation status
+  */
+DSTATUS SDRAMDISK_initialize(BYTE lun)
+{
+  Stat = STA_NOINIT;
+
+  /* Configure the SDRAM device */
+  if(BSP_SDRAM_Init() == SDRAM_OK)
+  {
+    Stat &= ~STA_NOINIT;
+  }
+
+  return Stat;
+}
+
+/**
+  * @brief  Gets Disk Status
+  * @param  lun : not used
+  * @retval DSTATUS: Operation status
+  */
+DSTATUS SDRAMDISK_status(BYTE lun)
+{
+  return Stat;
+}
+
+/**
+  * @brief  Reads Sector(s)
+  * @param  lun : not used
+  * @param  *buff: Data buffer to store read data
+  * @param  sector: Sector address (LBA)
+  * @param  count: Number of sectors to read (1..128)
+  * @retval DRESULT: Operation result
+  */
+DRESULT SDRAMDISK_read(BYTE lun, BYTE *buff, DWORD sector, UINT count)
+{
+  uint32_t *pSrcBuffer = (uint32_t *)buff;
+  uint32_t BufferSize = (BLOCK_SIZE * count)/4;
+  uint32_t *pSdramAddress = (uint32_t *) (SDRAM_DEVICE_ADDR + (sector * BLOCK_SIZE));
+
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *pSrcBuffer++ = *(__IO uint32_t *)pSdramAddress++;
+  }
+
+  return RES_OK;
+}
+
+/**
+  * @brief  Writes Sector(s)
+  * @param  lun : not used
+  * @param  *buff: Data to be written
+  * @param  sector: Sector address (LBA)
+  * @param  count: Number of sectors to write (1..128)
+  * @retval DRESULT: Operation result
+  */
+#if _USE_WRITE == 1
+DRESULT SDRAMDISK_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
+{
+  uint32_t *pDstBuffer = (uint32_t *)buff;
+  uint32_t BufferSize = (BLOCK_SIZE * count)/4;
+  uint32_t *pSramAddress = (uint32_t *) (SDRAM_DEVICE_ADDR + (sector * BLOCK_SIZE));
+
+  for(; BufferSize != 0; BufferSize--)
+  {
+    *(__IO uint32_t *)pSramAddress++ = *pDstBuffer++;
+  }
+
+  return RES_OK;
+}
+#endif /* _USE_WRITE == 1 */
+
+/**
+  * @brief  I/O control operation
+  * @param  lun : not used
+  * @param  cmd: Control code
+  * @param  *buff: Buffer to send/receive control data
+  * @retval DRESULT: Operation result
+  */
+#if _USE_IOCTL == 1
+DRESULT SDRAMDISK_ioctl(BYTE lun, BYTE cmd, void *buff)
+{
+  DRESULT res = RES_ERROR;
+
+  if (Stat & STA_NOINIT) return RES_NOTRDY;
+
+  switch (cmd)
+  {
+  /* Make sure that no pending write process */
+  case CTRL_SYNC :
+    res = RES_OK;
+    break;
+
+  /* Get number of sectors on the disk (DWORD) */
+  case GET_SECTOR_COUNT :
+    *(DWORD*)buff = SDRAM_DEVICE_SIZE / BLOCK_SIZE;
+    res = RES_OK;
+    break;
+
+  /* Get R/W sector size (WORD) */
+  case GET_SECTOR_SIZE :
+    *(WORD*)buff = BLOCK_SIZE;
+    res = RES_OK;
+    break;
+
+  /* Get erase block size in unit of sector (DWORD) */
+  case GET_BLOCK_SIZE :
+    *(DWORD*)buff = 1;
+	res = RES_OK;
+    break;
+
+  default:
+    res = RES_PARERR;
+  }
+
+  return res;
+}
+#endif /* _USE_IOCTL == 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+