【MCU实战经验】STM32F207的host USB的MSC和HID的合并开发

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mon51 发布时间：2014-3-31 18:51

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mon51 回答时间：2014-4-1 11:03:56

RE:【MCU实战经验】STM32F207的host USB的MSC和HID的合并开发

这是判别代码：
//修改：添加MSC-HID自动判别，然后再初始化CALSS-CB
unsigned char JB_MSC_HID(USBH_HOST *phost,unsigned char flag){//0:判别MSC，1：判别HID

if(flag==0){
if(phost->device_prop.Itf_Desc[0].bInterfaceClass == MSC_CLASS){
if(phost->device_prop.Itf_Desc[0].bInterfaceProtocol == MSC_PROTOCOL) return 1;
}
}else{
if(phost->device_prop.Itf_Desc[0].bInterfaceSubClass == HID_BOOT_CODE) return 1;
}
return 0;
}

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mon51 回答时间：2014-4-1 11:05:29

RE:【MCU实战经验】STM32F207的host USB的MSC和HID的合并开发

发的帖子，自动缩进的功能没有了，看起来不方便。

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mon51 回答时间：2014-4-1 11:11:33

RE:【MCU实战经验】STM32F207的host USB的MSC和HID的合并开发

另一个重要的函数，它影响了V2.0与V2.1对U盘的兼容性。
/**
  * @brief  USBH_CtlReq
  *       USBH_CtlReq sends a control request and provide the status after
  *          completion of the request
  * @param  pdev: Selected device
  * @param  req: Setup Request Structure
  * @param  buff: data buffer address to store the response
  * @param  length: length of the response
  * @retval Status
  */
USBH_Status USBH_CtlReq    (USB_OTG_CORE_HANDLE *pdev,
                           USBH_HOST          *phost,
                           uint8_t          *buff,
                           uint16_t          length)
{
  USBH_Status status;
  status = USBH_BUSY;

  switch (phost->RequestState)
  {
  case CMD_SEND:
/* Start a SETUP transfer */
USBH_SubmitSetupRequest(phost, buff, length);
phost->RequestState = CMD_WAIT;
status = USBH_BUSY;
break;

  case CMD_WAIT:
if(Get_HOST_USB_MODE()==0){ //--2014-3-30 添加2种模式判别！！！
if  (status == URB_DONE){
/* Commands successfully sent and Response Received  */
phost->RequestState = CMD_SEND;
status = USBH_OK;
}
else if  (status == URB_ERROR){
/* Failure Mode */
phost->RequestState = CMD_SEND;
status = USBH_FAIL;
}
   else if  (status == URB_STALL){
/* Commands successfully sent and Response Received  */
phost->RequestState = CMD_SEND;
status = USBH_NOT_SUPPORTED;
}
}else{
   if (phost->Control.state == CTRL_COMPLETE ){//HID 处理！！
// Commands successfully sent and Response Received
phost->RequestState = CMD_SEND;
phost->Control.state =CTRL_IDLE;
status = USBH_OK;
}
else if  (phost->Control.state == CTRL_ERROR)
{
// Failure Mode
phost->RequestState = CMD_SEND;
status = USBH_FAIL;
}
   else if  (phost->Control.state == CTRL_STALLED )
{
// Commands successfully sent and Response Received
phost->RequestState = CMD_SEND;
status = USBH_NOT_SUPPORTED;
}
}
break;
//-------------------------------------
  default:
break;
  }
  return status;
}

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