usbdebug.c

基于USB2.0芯片 ISP1581 的扫描仪固件源码,USB驱动模块

                                                      }


				                                          Descriptor_Ptr = &Int_In_Descriptor[0]; //set pointer to interface descriptor

			                                             count = *Descriptor_Ptr;	//read in descriptor length

			                                             while(count != 0)
			                                             {
				                                             D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
				                                             count--;
				                                             Descriptor_Ptr++;
				                                          
                                                      }

  
				                                          Descriptor_Ptr = &Int_Out_Descriptor[0]; //set pointer to interface descriptor

			                                             count = *Descriptor_Ptr;	//read in descriptor length

			                                             while(count != 0)
			                                             {
				                                             D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
				                                             count--;
				                                             Descriptor_Ptr++;
				                                          
                                                      }

				                                          Descriptor_Ptr = &Bulk_In_Descriptor[0]; //set pointer to interface descriptor

			                                             count = *Descriptor_Ptr;	//read in descriptor length

			                                             while(count != 0)
			                                             {
				                                             D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
				                                             count--;
				                                             Descriptor_Ptr++;
				                                          
                                                      }


				                                          Descriptor_Ptr = &Bulk_Out_Descriptor[0]; //set pointer to interface descriptor

			                                             count = *Descriptor_Ptr;	//read in descriptor length

			                                             while(count != 0)
			                                             {
				                                             D14_Cntrl_Reg.D14_DATA_PORT_LSB = *Descriptor_Ptr;
				                                             count--;
				                                             Descriptor_Ptr++;
				                                          
                                                      }
		                                             }					

	                                                D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.VENDP = 1;	//validate FIFO

       	                                          //check for status stage
                                                   while(!USB_Int_Flag.BITS.EP0TX)
                                                   {
                                                      if(USB_Int_Flag.BITS.SUSP ||
                                                         USB_Int_Flag.BITS.RESET)
                                                         return;
                                                   }
                                                   
                                                   USB_Int_Flag.BITS.EP0TX = 0;

				                                       D14_Cntrl_Reg.D14_ENDPT_INDEX = 0;
				                                       D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STATUS = 1;
                                                         
                                                   //end of status stage
                                                   while(!USB_Int_Flag.BITS.EP0RX)
                                                   {
                                                      if(USB_Int_Flag.BITS.SUSP ||
                                                         USB_Int_Flag.BITS.RESET)
                                                         return;
                                                   }
                                                   
                                                   USB_Int_Flag.BITS.EP0RX = 0;


	                                             }
	
                                                break;

                              case  8  :  
                                                break;


                              default  :
	                        							D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
   								                     D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STALL = 1;
                                                
                                                while(!USB_Int_Flag.BITS.EP0SETUP)
                                                {
                                                   if(USB_Int_Flag.BITS.SUSP ||
                                                      USB_Int_Flag.BITS.RESET)
                                                      return;
                                                }
                                                       
                                                USB_Int_Flag.BITS.EP0TX = 0;
                                                break;
                        
                           }

                           break;
                           

	case	Set_Address		:

                           USB_Int_Flag.BITS.EP0RX = 0;
                           
                           switch(USB_Device.BITS.State)
                           {
                           
                              default              :
                              case USB_Default     :
                                                      if(USB_Device_Request.wValue > 0)
                                                         USB_Device.BITS.State = USB_Addressed;
									                              
                                                      D14_Cntrl_Reg.D14_ADDRESS.BITS.DEVADDR = (USB_Device_Request.wValue >> 8);
									                           
                                                      D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
									                           D14_Cntrl_Reg.D14_CONTROL_FUNCTION.VALUE = 2;
                                                      
                                                        
                                                      //end of status stage
                                                      while(!USB_Int_Flag.BITS.EP0TX)
                                                      {
                                                         if(USB_Int_Flag.BITS.SUSP ||
                                                            USB_Int_Flag.BITS.RESET)
                                                            return;
                                                      }
                                                      
                                                      USB_Int_Flag.BITS.EP0TX = 0;

                                                      break;
                                                              
                                                        
                              case  USB_Configured :
                              case USB_Addressed   :
                                                      if(USB_Device_Request.wValue == 0)
                                                         USB_Device.BITS.State = USB_Default;
                                                    
                                                      D14_Cntrl_Reg.D14_ADDRESS.BITS.DEVADDR = (USB_Device_Request.wValue >> 8);
									                           
                                                      D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
									                           D14_Cntrl_Reg.D14_CONTROL_FUNCTION.VALUE = 2;
                                                      
                                                        
                                                      //end of status stage
                                                      while(!USB_Int_Flag.BITS.EP0TX)
                                                      {
                                                         if(USB_Int_Flag.BITS.SUSP ||
                                                            USB_Int_Flag.BITS.RESET)
                                                            return;
                                                      }
                                                      
                                                      USB_Int_Flag.BITS.EP0TX = 0;
                                                      
                                                      break;
                           }
                           
                           break;
	case	Set_Config		:
                           
                           USB_Int_Flag.BITS.EP0RX = 0;
                           
                           switch(USB_Device.BITS.State)
                           {
   
                              case  USB_Default    :  
                              default              :
                                                      break;
    
                              case  USB_Addressed  :
			                                             if(USB_Device_Request.wValue == 0)
                                                      {
                     				                        Device_Config_Value = 0;
                                                      
                                                         D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
									                              D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STATUS = 1;
                                                      
                                                        
                                                         //end of status stage
                                                         while(!USB_Int_Flag.BITS.EP0TX)
                                                         {
                                                            if(USB_Int_Flag.BITS.SUSP ||
                                                               USB_Int_Flag.BITS.RESET)
                                                               return;
                                                         }
                                                         
                                                         USB_Int_Flag.BITS.EP0TX = 0;
                                                         
                                                         break;
                                    
                                                      }
                                   
                                                      if(USB_Device_Request.wValue == 0x0100 ||
                                                         USB_Device_Request.wValue == 0x0200)
                                                      {
                              	                        Device_Config_Value = (UC) (USB_Device_Request.wValue >> 8);

               						                        USB_Device.BITS.State = USB_Configured;
                                                      
                                                         D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
									                              D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STATUS = 1;
                                                      
                                                        
                                                         //end of status stage
                                                         while(!USB_Int_Flag.BITS.EP0TX)
                                                         {
                                                            if(USB_Int_Flag.BITS.SUSP ||
                                                               USB_Int_Flag.BITS.RESET)
                                                               return;
                                                         }
                                                         
                                                         USB_Int_Flag.BITS.EP0TX = 0;
                                                         
                                                         break;
                                    
                                                      } 

                                                      D14_Cntrl_Reg.D14_ENDPT_INDEX = 1;
		                                                D14_Cntrl_Reg.D14_CONTROL_FUNCTION.BITS.STALL = 1;
                                                      
                                                      while(!USB_Int_Flag.BITS.EP0SETUP)
                                                      {
                                                         if(USB_Int_Flag.BITS.SUSP ||
                                                            USB_Int_Flag.BITS.RESET)
                                                            return;
            
                                                      }
      
                                                      USB_Int_Flag.BITS.EP0TX = 0;
                                                      
                                                      break;
                              
                              case  USB_Configured :
			                                             if(USB_Device_Request.wValue == 0)
                                                      {