--- /dev/null
+/**
+ ******************************************************************************
+ * @file usbh_msc_scsi.c
+ * @author MCD Application Team
+ * @version V2.0.0
+ * @date 22-July-2011
+ * @brief This file implements the SCSI commands
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbh_msc_core.h"
+#include "usbh_msc_scsi.h"
+#include "usbh_msc_bot.h"
+#include "usbh_ioreq.h"
+#include "usbh_def.h"
+
+
+/** @addtogroup USBH_LIB
+ * @{
+ */
+
+/** @addtogroup USBH_CLASS
+ * @{
+ */
+
+/** @addtogroup USBH_MSC_CLASS
+ * @{
+ */
+
+/** @defgroup USBH_MSC_SCSI
+ * @brief This file includes the mass storage related functions
+ * @{
+ */
+
+
+/** @defgroup USBH_MSC_SCSI_Private_TypesDefinitions
+ * @{
+ */
+
+MassStorageParameter_TypeDef USBH_MSC_Param;
+/**
+ * @}
+ */
+
+/** @defgroup USBH_MSC_SCSI_Private_Defines
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup USBH_MSC_SCSI_Private_Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_MSC_SCSI_Private_Variables
+ * @{
+ */
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+ #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+ #pragma data_alignment=4
+ #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBH_DataInBuffer[512] __ALIGN_END ;
+
+#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
+ #if defined ( __ICCARM__ ) /*!< IAR Compiler */
+ #pragma data_alignment=4
+ #endif
+#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
+__ALIGN_BEGIN uint8_t USBH_DataOutBuffer[512] __ALIGN_END ;
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_MSC_SCSI_Private_FunctionPrototypes
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_MSC_SCSI_Exported_Variables
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_MSC_SCSI_Private_Functions
+ * @{
+ */
+
+
+
+
+/**
+ * @brief USBH_MSC_TestUnitReady
+ * Issues 'Test unit ready' command to the device. Once the response
+ * received, it updates the status to upper layer.
+ * @param None
+ * @retval Status
+ */
+uint8_t USBH_MSC_TestUnitReady (USB_OTG_CORE_HANDLE *pdev)
+{
+ uint8_t index;
+ USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+ /*Prepare the CBW and relevent field*/
+ USBH_MSC_CBWData.field.CBWTransferLength = 0; /* No Data Transfer */
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_OUT;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH_TEST_UNIT_READY;
+ USBH_MSC_BOTXferParam.pRxTxBuff = USBH_MSC_CSWData.CSWArray;
+ USBH_MSC_BOTXferParam.DataLength = USBH_MSC_CSW_MAX_LENGTH;
+ USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_TEST_UNIT_READY;
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_TEST_UNIT_READY;
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+ /* Start the transfer, then let the state
+ machine magage the other transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+ break;
+
+ case CMD_WAIT_STATUS:
+ if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+ {
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+
+ status = USBH_MSC_OK;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_FAIL;
+ }
+
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+
+/**
+ * @brief USBH_MSC_ReadCapacity10
+ * Issue the read capacity command to the device. Once the response
+ * received, it updates the status to upper layer
+ * @param None
+ * @retval Status
+ */
+uint8_t USBH_MSC_ReadCapacity10(USB_OTG_CORE_HANDLE *pdev)
+{
+ uint8_t index;
+ USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+ /*Prepare the CBW and relevent field*/
+ USBH_MSC_CBWData.field.CBWTransferLength = XFER_LEN_READ_CAPACITY10;
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+
+ USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+ USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_READ_CAPACITY10;
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_READ_CAPACITY10;
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+
+ /* Start the transfer, then let the state machine manage the other
+ transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+ break;
+
+ case CMD_WAIT_STATUS:
+ if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+ {
+ /*assign the capacity*/
+ (((uint8_t*)&USBH_MSC_Param.MSCapacity )[3]) = USBH_DataInBuffer[0];
+ (((uint8_t*)&USBH_MSC_Param.MSCapacity )[2]) = USBH_DataInBuffer[1];
+ (((uint8_t*)&USBH_MSC_Param.MSCapacity )[1]) = USBH_DataInBuffer[2];
+ (((uint8_t*)&USBH_MSC_Param.MSCapacity )[0]) = USBH_DataInBuffer[3];
+
+ /*assign the page length*/
+ (((uint8_t*)&USBH_MSC_Param.MSPageLength )[1]) = USBH_DataInBuffer[6];
+ (((uint8_t*)&USBH_MSC_Param.MSPageLength )[0]) = USBH_DataInBuffer[7];
+
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_OK;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_FAIL;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+ else
+ {
+ /* Wait for the Commands to get Completed */
+ /* NO Change in state Machine */
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+
+/**
+ * @brief USBH_MSC_ModeSense6
+ * Issue the Mode Sense6 Command to the device. This function is used
+ * for reading the WriteProtect Status of the Mass-Storage device.
+ * @param None
+ * @retval Status
+ */
+uint8_t USBH_MSC_ModeSense6(USB_OTG_CORE_HANDLE *pdev)
+{
+ uint8_t index;
+ USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+ /*Prepare the CBW and relevent field*/
+ USBH_MSC_CBWData.field.CBWTransferLength = XFER_LEN_MODE_SENSE6;
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+
+ USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+ USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_MODE_SENSE6;
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_MODE_SENSE6;
+ USBH_MSC_CBWData.field.CBWCB[2] = MODE_SENSE_PAGE_CONTROL_FIELD | \
+ MODE_SENSE_PAGE_CODE;
+
+ USBH_MSC_CBWData.field.CBWCB[4] = XFER_LEN_MODE_SENSE6;
+
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+
+ /* Start the transfer, then let the state machine manage the other
+ transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+ break;
+
+ case CMD_WAIT_STATUS:
+ if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+ {
+ /* Assign the Write Protect status */
+ /* If WriteProtect = 0, Writing is allowed
+ If WriteProtect != 0, Disk is Write Protected */
+ if ( USBH_DataInBuffer[2] & MASK_MODE_SENSE_WRITE_PROTECT)
+ {
+ USBH_MSC_Param.MSWriteProtect = DISK_WRITE_PROTECTED;
+ }
+ else
+ {
+ USBH_MSC_Param.MSWriteProtect = 0;
+ }
+
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_OK;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_FAIL;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+ else
+ {
+ /* Wait for the Commands to get Completed */
+ /* NO Change in state Machine */
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+/**
+ * @brief USBH_MSC_RequestSense
+ * Issues the Request Sense command to the device. Once the response
+ * received, it updates the status to upper layer
+ * @param None
+ * @retval Status
+ */
+uint8_t USBH_MSC_RequestSense(USB_OTG_CORE_HANDLE *pdev)
+{
+ USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+
+ uint8_t index;
+
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+
+ /*Prepare the CBW and relevent field*/
+ USBH_MSC_CBWData.field.CBWTransferLength = \
+ ALLOCATION_LENGTH_REQUEST_SENSE;
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+
+ USBH_MSC_BOTXferParam.pRxTxBuff = USBH_DataInBuffer;
+ USBH_MSC_BOTXferParam.MSCStateBkp = USBH_MSC_BOTXferParam.MSCStateCurrent;
+ USBH_MSC_BOTXferParam.MSCStateCurrent = USBH_MSC_REQUEST_SENSE;
+
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_REQUEST_SENSE;
+ USBH_MSC_CBWData.field.CBWCB[1] = DESC_REQUEST_SENSE;
+ USBH_MSC_CBWData.field.CBWCB[4] = ALLOCATION_LENGTH_REQUEST_SENSE;
+
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+ /* Start the transfer, then let the state machine magage
+ the other transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+
+ break;
+
+ case CMD_WAIT_STATUS:
+
+ if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+ {
+ /* Get Sense data*/
+ (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[3]) = USBH_DataInBuffer[0];
+ (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[2]) = USBH_DataInBuffer[1];
+ (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[1]) = USBH_DataInBuffer[2];
+ (((uint8_t*)&USBH_MSC_Param.MSSenseKey )[0]) = USBH_DataInBuffer[3];
+
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_OK;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_FAIL;
+ }
+
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+
+ else
+ {
+ /* Wait for the Commands to get Completed */
+ /* NO Change in state Machine */
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+
+/**
+ * @brief USBH_MSC_Write10
+ * Issue the write command to the device. Once the response received,
+ * it updates the status to upper layer
+ * @param dataBuffer : DataBuffer contains the data to write
+ * @param address : Address to which the data will be written
+ * @param nbOfbytes : NbOfbytes to be written
+ * @retval Status
+ */
+uint8_t USBH_MSC_Write10(USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *dataBuffer,
+ uint32_t address,
+ uint32_t nbOfbytes)
+{
+ uint8_t index;
+ USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+ uint16_t nbOfPages;
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+ USBH_MSC_CBWData.field.CBWTransferLength = nbOfbytes;
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_OUT;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+ USBH_MSC_BOTXferParam.pRxTxBuff = dataBuffer;
+
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_WRITE10;
+
+ /*logical block address*/
+ USBH_MSC_CBWData.field.CBWCB[2] = (((uint8_t*)&address)[3]) ;
+ USBH_MSC_CBWData.field.CBWCB[3] = (((uint8_t*)&address)[2]);
+ USBH_MSC_CBWData.field.CBWCB[4] = (((uint8_t*)&address)[1]);
+ USBH_MSC_CBWData.field.CBWCB[5] = (((uint8_t*)&address)[0]);
+
+ /*USBH_MSC_PAGE_LENGTH = 512*/
+ nbOfPages = nbOfbytes/ USBH_MSC_PAGE_LENGTH;
+
+ /*Tranfer length */
+ USBH_MSC_CBWData.field.CBWCB[7] = (((uint8_t *)&nbOfPages)[1]) ;
+ USBH_MSC_CBWData.field.CBWCB[8] = (((uint8_t *)&nbOfPages)[0]) ;
+
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+ /* Start the transfer, then let the state machine
+ magage the other transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+
+ break;
+
+ case CMD_WAIT_STATUS:
+ if(USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK)
+ {
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_OK;
+ }
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ }
+
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+/**
+ * @brief USBH_MSC_Read10
+ * Issue the read command to the device. Once the response received,
+ * it updates the status to upper layer
+ * @param dataBuffer : DataBuffer will contain the data to be read
+ * @param address : Address from which the data will be read
+ * @param nbOfbytes : NbOfbytes to be read
+ * @retval Status
+ */
+uint8_t USBH_MSC_Read10(USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *dataBuffer,
+ uint32_t address,
+ uint32_t nbOfbytes)
+{
+ uint8_t index;
+ static USBH_MSC_Status_TypeDef status = USBH_MSC_BUSY;
+ uint16_t nbOfPages;
+ status = USBH_MSC_BUSY;
+
+ if(HCD_IsDeviceConnected(pdev))
+ {
+ switch(USBH_MSC_BOTXferParam.CmdStateMachine)
+ {
+ case CMD_SEND_STATE:
+ /*Prepare the CBW and relevent field*/
+ USBH_MSC_CBWData.field.CBWTransferLength = nbOfbytes;
+ USBH_MSC_CBWData.field.CBWFlags = USB_EP_DIR_IN;
+ USBH_MSC_CBWData.field.CBWLength = CBW_LENGTH;
+
+ USBH_MSC_BOTXferParam.pRxTxBuff = dataBuffer;
+
+ for(index = CBW_CB_LENGTH; index != 0; index--)
+ {
+ USBH_MSC_CBWData.field.CBWCB[index] = 0x00;
+ }
+
+ USBH_MSC_CBWData.field.CBWCB[0] = OPCODE_READ10;
+
+ /*logical block address*/
+
+ USBH_MSC_CBWData.field.CBWCB[2] = (((uint8_t*)&address)[3]);
+ USBH_MSC_CBWData.field.CBWCB[3] = (((uint8_t*)&address)[2]);
+ USBH_MSC_CBWData.field.CBWCB[4] = (((uint8_t*)&address)[1]);
+ USBH_MSC_CBWData.field.CBWCB[5] = (((uint8_t*)&address)[0]);
+
+ /*USBH_MSC_PAGE_LENGTH = 512*/
+ nbOfPages = nbOfbytes/ USBH_MSC_PAGE_LENGTH;
+
+ /*Tranfer length */
+ USBH_MSC_CBWData.field.CBWCB[7] = (((uint8_t *)&nbOfPages)[1]) ;
+ USBH_MSC_CBWData.field.CBWCB[8] = (((uint8_t *)&nbOfPages)[0]) ;
+
+
+ USBH_MSC_BOTXferParam.BOTState = USBH_MSC_SEND_CBW;
+ /* Start the transfer, then let the state machine
+ magage the other transactions */
+ USBH_MSC_BOTXferParam.MSCState = USBH_MSC_BOT_USB_TRANSFERS;
+ USBH_MSC_BOTXferParam.BOTXferStatus = USBH_MSC_BUSY;
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_WAIT_STATUS;
+
+ status = USBH_MSC_BUSY;
+
+ break;
+
+ case CMD_WAIT_STATUS:
+
+ if((USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_OK) && \
+ (HCD_IsDeviceConnected(pdev)))
+ {
+ /* Commands successfully sent and Response Received */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_OK;
+ }
+ else if (( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_FAIL ) && \
+ (HCD_IsDeviceConnected(pdev)))
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ }
+
+ else if ( USBH_MSC_BOTXferParam.BOTXferStatus == USBH_MSC_PHASE_ERROR )
+ {
+ /* Failure Mode */
+ USBH_MSC_BOTXferParam.CmdStateMachine = CMD_SEND_STATE;
+ status = USBH_MSC_PHASE_ERROR;
+ }
+ else
+ {
+ /* Wait for the Commands to get Completed */
+ /* NO Change in state Machine */
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ return status;
+}
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
+
+
+
projects / fw / stlink / blobdiff