/**
* @brief MSC_BOT_Init
* Initialize the BOT Process
* @param pdev: device instance
* @retval None
*/
void MSC_BOT_Init (USBD_HandleTypeDef *pdev)
{
USBD_MSC_BOT_HandleTypeDef *hmsc = pdev->pClassData;
hmsc->bot_state = USBD_BOT_IDLE;
hmsc->bot_status = USBD_BOT_STATUS_NORMAL;
hmsc->scsi_sense_tail = 0;
hmsc->scsi_sense_head = 0;
((USBD_StorageTypeDef *)pdev->pUserData)->Init(0);
USBD_LL_FlushEP(pdev, MSC_EPOUT_ADDR);
USBD_LL_FlushEP(pdev, MSC_EPIN_ADDR);
/* Prapare EP to Receive First BOT Cmd */
USBD_LL_PrepareReceive (pdev,
MSC_EPOUT_ADDR,
(uint8_t *)&hmsc->cbw,
USBD_BOT_CBW_LENGTH);
}
/**
* @brief MSC_BOT_Init
* Initialize the BOT Process
* @param pdev: device instance
* @retval None
*/
void MSC_BOT_Init (USBD_HandleTypeDef *pdev)
{
USBD_MSC_BOT_HandleTypeDef *hmsc = &((usbd_cdc_msc_hid_state_t*)pdev->pClassData)->MSC_BOT_ClassData;
hmsc->bot_state = USBD_BOT_IDLE;
hmsc->bot_status = USBD_BOT_STATUS_NORMAL;
hmsc->scsi_sense_tail = 0;
hmsc->scsi_sense_head = 0;
hmsc->bdev_ops->Init(0);
USBD_LL_FlushEP(pdev, MSC_OUT_EP);
USBD_LL_FlushEP(pdev, MSC_IN_EP);
/* Prapare EP to Receive First BOT Cmd */
USBD_LL_PrepareReceive (pdev,
MSC_OUT_EP,
(uint8_t *)&hmsc->cbw,
USBD_BOT_CBW_LENGTH);
}
/**
* @brief USBD_MSC_Setup
* Handle the MSC specific requests
* @param pdev: device instance
* @param req: USB request
* @retval status
*/
uint8_t USBD_MSC_Setup (USBD_HandleTypeDef *pdev, USBD_SetupReqTypedef *req)
{
USBD_MSC_BOT_HandleTypeDef *hmsc = (USBD_MSC_BOT_HandleTypeDef*) pdev->pClassData;
switch (req->bmRequest & USB_REQ_TYPE_MASK)
{
/* Class request */
case USB_REQ_TYPE_CLASS :
switch (req->bRequest)
{
case BOT_GET_MAX_LUN :
if((req->wValue == 0) &&
(req->wLength == 1) &&
((req->bmRequest & 0x80) == 0x80))
{
hmsc->max_lun = ((USBD_StorageTypeDef *)pdev->pUserData)->GetMaxLun();
USBD_CtlSendData (pdev,
(uint8_t *)&hmsc->max_lun,
1);
}
else
{
USBD_CtlError(pdev , req);
return USBD_FAIL;
}
break;
case BOT_RESET :
if((req->wValue == 0) &&
(req->wLength == 0) &&
((req->bmRequest & 0x80) != 0x80))
{
MSC_BOT_Reset(pdev);
}
else
{
USBD_CtlError(pdev , req);
return USBD_FAIL;
}
break;
default:
USBD_CtlError(pdev , req);
return USBD_FAIL;
}
break;
/* Interface & Endpoint request */
case USB_REQ_TYPE_STANDARD:
switch (req->bRequest)
{
case USB_REQ_GET_INTERFACE :
USBD_CtlSendData (pdev,
(uint8_t *)&hmsc->interface,
1);
break;
case USB_REQ_SET_INTERFACE :
hmsc->interface = (uint8_t)(req->wValue);
break;
case USB_REQ_CLEAR_FEATURE:
/* Flush the FIFO and Clear the stall status */
USBD_LL_FlushEP(pdev, (uint8_t)req->wIndex);
/* Reactivate the EP */
USBD_LL_CloseEP (pdev , (uint8_t)req->wIndex);
if((((uint8_t)req->wIndex) & 0x80) == 0x80)
{
if(pdev->dev_speed == USBD_SPEED_HIGH )
{
/* Open EP IN */
USBD_LL_OpenEP(pdev,
MSC_EPIN_ADDR,
USBD_EP_TYPE_BULK,
MSC_MAX_HS_PACKET);
}
else
{
/* Open EP IN */
USBD_LL_OpenEP(pdev,
MSC_EPIN_ADDR,
USBD_EP_TYPE_BULK,
MSC_MAX_FS_PACKET);
}
}
else
{
if(pdev->dev_speed == USBD_SPEED_HIGH )
{
/* Open EP IN */
USBD_LL_OpenEP(pdev,
MSC_EPOUT_ADDR,
USBD_EP_TYPE_BULK,
MSC_MAX_HS_PACKET);
}
else
{
/* Open EP IN */
USBD_LL_OpenEP(pdev,
MSC_EPOUT_ADDR,
USBD_EP_TYPE_BULK,
MSC_MAX_FS_PACKET);
}
}
/* Handle BOT error */
MSC_BOT_CplClrFeature(pdev, (uint8_t)req->wIndex);
break;
}
break;
default:
break;
}
return 0;
}
