/**
* @brief USBH_MSC_SCSI_Inquiry
* Issue Inquiry command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param capacity: pointer to the inquiry structure
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_Inquiry (USBH_HandleTypeDef *phost,
uint8_t lun,
SCSI_StdInquiryDataTypeDef *inquiry)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_INQUIRY;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_INQUIRY;
MSC_Handle->hbot.cbw.field.CB[1] = (lun << 5);
MSC_Handle->hbot.cbw.field.CB[2] = 0;
MSC_Handle->hbot.cbw.field.CB[3] = 0;
MSC_Handle->hbot.cbw.field.CB[4] = 0x24;
MSC_Handle->hbot.cbw.field.CB[5] = 0;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = (uint8_t *)MSC_Handle->hbot.data;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
if(error == USBH_OK)
{
USBH_memset(inquiry, 0, sizeof(SCSI_StdInquiryDataTypeDef));
/*assign Inquiry Data */
inquiry->DeviceType = MSC_Handle->hbot.pbuf[0] & 0x1F;
inquiry->PeripheralQualifier = MSC_Handle->hbot.pbuf[0] >> 5;
inquiry->RemovableMedia = (MSC_Handle->hbot.pbuf[1] & 0x80)== 0x80;
USBH_memcpy (inquiry->vendor_id, &MSC_Handle->hbot.pbuf[8], 8);
USBH_memcpy (inquiry->product_id, &MSC_Handle->hbot.pbuf[16], 16);
USBH_memcpy (inquiry->revision_id, &MSC_Handle->hbot.pbuf[32], 4);
}
break;
default:
break;
}
/**
* @brief USBH_MSC_SCSI_TestUnitReady
* Issue TestUnitReady command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_TestUnitReady (USBH_HandleTypeDef *phost,
uint8_t lun)
{
USBH_StatusTypeDef error = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_MODE_TEST_UNIT_READY;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_OUT;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_TEST_UNIT_READY;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_SCSI_ReadCapacity
* Issue Read Capacity command.
* @param phost: Host handle
* @param lun: Logical Unit Number
* @param capacity: pointer to the capacity structure
* @retval USBH Status
*/
USBH_StatusTypeDef USBH_MSC_SCSI_ReadCapacity (USBH_HandleTypeDef *phost,
uint8_t lun,
SCSI_CapacityTypeDef *capacity)
{
USBH_StatusTypeDef error = USBH_BUSY ;
MSC_HandleTypeDef *MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData;
switch(MSC_Handle->hbot.cmd_state)
{
case BOT_CMD_SEND:
/*Prepare the CBW and relevent field*/
MSC_Handle->hbot.cbw.field.DataTransferLength = DATA_LEN_READ_CAPACITY10;
MSC_Handle->hbot.cbw.field.Flags = USB_EP_DIR_IN;
MSC_Handle->hbot.cbw.field.CBLength = CBW_LENGTH;
USBH_memset(MSC_Handle->hbot.cbw.field.CB, 0, CBW_CB_LENGTH);
MSC_Handle->hbot.cbw.field.CB[0] = OPCODE_READ_CAPACITY10;
MSC_Handle->hbot.state = BOT_SEND_CBW;
MSC_Handle->hbot.cmd_state = BOT_CMD_WAIT;
MSC_Handle->hbot.pbuf = (uint8_t *)MSC_Handle->hbot.data;
error = USBH_BUSY;
break;
case BOT_CMD_WAIT:
error = USBH_MSC_BOT_Process(phost, lun);
if(error == USBH_OK)
{
/*assign the capacity*/
capacity->block_nbr = MSC_Handle->hbot.pbuf[3] | (MSC_Handle->hbot.pbuf[2] << 8) |\
(MSC_Handle->hbot.pbuf[1] << 16) | (MSC_Handle->hbot.pbuf[0] << 24);
/*assign the page length*/
capacity->block_size = MSC_Handle->hbot.pbuf[7] | (MSC_Handle->hbot.pbuf[6] << 8);
}
break;
default:
break;
}
return error;
}
/**
* @brief USBH_MSC_InterfaceInit
* The function init the MSC class.
* @param phost: Host handle
* @retval USBH Status
*/
static USBH_StatusTypeDef USBH_MSC_InterfaceInit (USBH_HandleTypeDef *phost)
{
uint8_t interface = 0;
USBH_StatusTypeDef status = USBH_FAIL ;
MSC_HandleTypeDef *MSC_Handle;
interface = USBH_FindInterface(phost, phost->pActiveClass->ClassCode, MSC_TRANSPARENT, MSC_BOT);
if(interface == 0xFF) /* Not Valid Interface */
{
USBH_DbgLog ("Cannot Find the interface for %s class.", phost->pActiveClass->Name);
status = USBH_FAIL;
}
else
{
USBH_SelectInterface (phost, interface);
phost->pActiveClass->pData = (MSC_HandleTypeDef *)USBH_malloc (sizeof(MSC_HandleTypeDef));
MSC_Handle = (MSC_HandleTypeDef *) phost->pActiveClass->pData;
if(phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[0].bEndpointAddress & 0x80)
{
MSC_Handle->InEp = (phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[0].bEndpointAddress);
MSC_Handle->InEpSize = phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[0].wMaxPacketSize;
}
else
{
MSC_Handle->OutEp = (phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[0].bEndpointAddress);
MSC_Handle->OutEpSize = phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[0].wMaxPacketSize;
}
if(phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[1].bEndpointAddress & 0x80)
{
MSC_Handle->InEp = (phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[1].bEndpointAddress);
MSC_Handle->InEpSize = phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[1].wMaxPacketSize;
}
else
{
MSC_Handle->OutEp = (phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[1].bEndpointAddress);
MSC_Handle->OutEpSize = phost->device.CfgDesc.Itf_Desc[phost->device.current_interface].Ep_Desc[1].wMaxPacketSize;
}
MSC_Handle->current_lun = 0;
MSC_Handle->rw_lun = 0;
MSC_Handle->state = MSC_INIT;
MSC_Handle->error = MSC_OK;
MSC_Handle->req_state = MSC_REQ_IDLE;
MSC_Handle->OutPipe = USBH_AllocPipe(phost, MSC_Handle->OutEp);
MSC_Handle->InPipe = USBH_AllocPipe(phost, MSC_Handle->InEp);
USBH_MSC_BOT_Init(phost);
/* De-Initialize LUNs information */
USBH_memset(MSC_Handle->unit, 0, sizeof(MSC_Handle->unit));
/* Open the new channels */
USBH_OpenPipe (phost,
MSC_Handle->OutPipe,
MSC_Handle->OutEp,
phost->device.address,
phost->device.speed,
USB_EP_TYPE_BULK,
MSC_Handle->OutEpSize);
USBH_OpenPipe (phost,
MSC_Handle->InPipe,
MSC_Handle->InEp,
phost->device.address,
phost->device.speed,
USB_EP_TYPE_BULK,
MSC_Handle->InEpSize);
USBH_LL_SetToggle (phost, MSC_Handle->InPipe,0);
USBH_LL_SetToggle (phost, MSC_Handle->OutPipe,0);
status = USBH_OK;
}
return status;
}
