diff options
Diffstat (limited to 'stmhal/fatfs/src/drivers/usbh_diskio.c')
| -rw-r--r-- | stmhal/fatfs/src/drivers/usbh_diskio.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/stmhal/fatfs/src/drivers/usbh_diskio.c b/stmhal/fatfs/src/drivers/usbh_diskio.c new file mode 100644 index 000000000..aef8c2a8d --- /dev/null +++ b/stmhal/fatfs/src/drivers/usbh_diskio.c @@ -0,0 +1,289 @@ +/**
+ ******************************************************************************
+ * @file usbh_diskio.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 18-February-2014
+ * @brief USB Key Disk I/O driver.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
+ *
+ * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.st.com/software_license_agreement_liberty_v2
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include <string.h>
+#include "ff_gen_drv.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+extern USBH_HandleTypeDef HOST_HANDLE;
+
+/* Private function prototypes -----------------------------------------------*/
+DSTATUS USBH_initialize (void);
+DSTATUS USBH_status (void);
+DRESULT USBH_read (BYTE*, DWORD, BYTE);
+
+#if _USE_WRITE == 1
+ DRESULT USBH_write (const BYTE*, DWORD, BYTE);
+#endif /* _USE_WRITE == 1 */
+
+#if _USE_IOCTL == 1
+ DRESULT USBH_ioctl (BYTE, void*);
+#endif /* _USE_IOCTL == 1 */
+
+Diskio_drvTypeDef USBH_Driver =
+{
+ USBH_initialize,
+ USBH_status,
+ USBH_read,
+#if _USE_WRITE == 1
+ USBH_write,
+#endif /* _USE_WRITE == 1 */
+#if _USE_IOCTL == 1
+ USBH_ioctl,
+#endif /* _USE_IOCTL == 1 */
+};
+
+/* Private functions ---------------------------------------------------------*/
+
+/**
+ * @brief Initializes a Drive
+ * @param None
+ * @retval DSTATUS: Operation status
+ */
+DSTATUS USBH_initialize(void)
+{
+ return RES_OK;
+}
+
+/**
+ * @brief Gets Disk Status
+ * @param None
+ * @retval DSTATUS: Operation status
+ */
+DSTATUS USBH_status(void)
+{
+ DRESULT res = RES_ERROR;
+
+ if(USBH_MSC_UnitIsReady(&HOST_HANDLE, 0))
+ {
+ res = RES_OK;
+ }
+ else
+ {
+ res = RES_ERROR;
+ }
+
+ return res;
+}
+
+/**
+ * @brief Reads Sector(s)
+ * @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 USBH_read(BYTE *buff, DWORD sector, BYTE count)
+{
+ DRESULT res = RES_ERROR;
+ MSC_LUNTypeDef info;
+ USBH_StatusTypeDef status = USBH_OK;
+ DWORD scratch [_MAX_SS / 4];
+
+ if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */
+ {
+ while ((count--)&&(status == USBH_OK))
+ {
+ status = USBH_MSC_Read(&HOST_HANDLE, 0, sector + count, (uint8_t *)scratch, 1);
+ if(status == USBH_OK)
+ {
+ memcpy (&buff[count * _MAX_SS] ,scratch, _MAX_SS);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+ else
+ {
+ status = USBH_MSC_Read(&HOST_HANDLE, 0, sector, buff, count);
+ }
+
+ if(status == USBH_OK)
+ {
+ res = RES_OK;
+ }
+ else
+ {
+ USBH_MSC_GetLUNInfo(&HOST_HANDLE, 0, &info);
+
+ switch (info.sense.asc)
+ {
+ case SCSI_ASC_LOGICAL_UNIT_NOT_READY:
+ case SCSI_ASC_MEDIUM_NOT_PRESENT:
+ case SCSI_ASC_NOT_READY_TO_READY_CHANGE:
+ USBH_ErrLog ("USB Disk is not ready!");
+ res = RES_NOTRDY;
+ break;
+
+ default:
+ res = RES_ERROR;
+ break;
+ }
+ }
+
+ return res;
+}
+
+/**
+ * @brief Writes Sector(s)
+ * @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 USBH_write(const BYTE *buff, DWORD sector, BYTE count)
+{
+ DRESULT res = RES_ERROR;
+ MSC_LUNTypeDef info;
+ USBH_StatusTypeDef status = USBH_OK;
+ DWORD scratch [_MAX_SS / 4];
+
+ if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */
+ {
+ while (count--)
+ {
+ memcpy (scratch, &buff[count * _MAX_SS], _MAX_SS);
+
+ status = USBH_MSC_Write(&HOST_HANDLE, 0, sector + count, (BYTE *)scratch, 1) ;
+ if(status == USBH_FAIL)
+ {
+ break;
+ }
+ }
+ }
+ else
+ {
+ status = USBH_MSC_Write(&HOST_HANDLE, 0, sector, (BYTE *)buff, count);
+ }
+
+ if(status == USBH_OK)
+ {
+ res = RES_OK;
+ }
+ else
+ {
+ USBH_MSC_GetLUNInfo(&HOST_HANDLE, 0, &info);
+
+ switch (info.sense.asc)
+ {
+ case SCSI_ASC_WRITE_PROTECTED:
+ USBH_ErrLog("USB Disk is Write protected!");
+ res = RES_WRPRT;
+ break;
+
+ case SCSI_ASC_LOGICAL_UNIT_NOT_READY:
+ case SCSI_ASC_MEDIUM_NOT_PRESENT:
+ case SCSI_ASC_NOT_READY_TO_READY_CHANGE:
+ USBH_ErrLog("USB Disk is not ready!");
+ res = RES_NOTRDY;
+ break;
+
+ default:
+ res = RES_ERROR;
+ break;
+ }
+ }
+
+ return res;
+}
+#endif /* _USE_WRITE == 1 */
+
+/**
+ * @brief I/O control operation
+ * @param cmd: Control code
+ * @param *buff: Buffer to send/receive control data
+ * @retval DRESULT: Operation result
+ */
+#if _USE_IOCTL == 1
+DRESULT USBH_ioctl(BYTE cmd, void *buff)
+{
+ DRESULT res = RES_ERROR;
+ MSC_LUNTypeDef info;
+
+ 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 :
+ if(USBH_MSC_GetLUNInfo(&HOST_HANDLE, 0, &info) == USBH_OK)
+ {
+ *(DWORD*)buff = info.capacity.block_nbr;
+ res = RES_OK;
+ }
+ else
+ {
+ res = RES_ERROR;
+ }
+ break;
+
+ /* Get R/W sector size (WORD) */
+ case GET_SECTOR_SIZE :
+ if(USBH_MSC_GetLUNInfo(&HOST_HANDLE, 0, &info) == USBH_OK)
+ {
+ *(DWORD*)buff = info.capacity.block_size;
+ res = RES_OK;
+ }
+ else
+ {
+ res = RES_ERROR;
+ }
+ break;
+
+ /* Get erase block size in unit of sector (DWORD) */
+ case GET_BLOCK_SIZE :
+
+ if(USBH_MSC_GetLUNInfo(&HOST_HANDLE, 0, &info) == USBH_OK)
+ {
+ *(DWORD*)buff = info.capacity.block_size;
+ res = RES_OK;
+ }
+ else
+ {
+ res = RES_ERROR;
+ }
+ break;
+
+ default:
+ res = RES_PARERR;
+ }
+
+ return res;
+}
+#endif /* _USE_IOCTL == 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
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