setup.c

DSP+MP3+USB+FAT12的所有源程序(C语言编写)

/*******************************************************************/

#include "general.h"
#include "D12.h"

DEVICE_REQUEST  DeviceRequest;


//*****************************************************************************
/*++

Routine Description:

        process USB  Standard Request

Arguments:

        none

Return Value:

        none

--*/
void CTLSETUP_StandardRequest(void)
{
  
  if(DeviceRequest.bRequest==0x06) // get descriptor
  {
		  
      if((DeviceRequest.wValue)==0x0100) // device descriptor 
	  {
		   if(DeviceRequest.wLength>18)      
		   {
		       
#if(MSDC_OPTION == 1)
              if(G_bChoose_MSDC == 1)
	       
		       {   
		         D12_WriteEndpoint(1,8,(UWord16 *)(&MSDC_Device_Descriptor))  ;		         		         
               }
              else
#endif     
               {
               
               D12_WriteEndpoint(1,8,(UWord16 *)(&USB_Device_Descriptor))  ;
               
               }
		       
		   }
		       
		   else
		   {
		        		         
#if(MSDC_OPTION == 1)
             if(G_bChoose_MSDC == 1)	       
		     {   
		         D12_WriteEndpoint(1,18,(UWord16 *)(&MSDC_Device_Descriptor))  ;		         		         
             }
             else
#endif     
             {
               
               D12_WriteEndpoint(1,18,(UWord16 *)(&USB_Device_Descriptor))  ;
               
             }
		   }     
	  }	
		    	     
		    
	  else if(DeviceRequest.wValue==0x0200)//get configuration
	  {
		 if(DeviceRequest.wLength<10)			      	     
		 {
		       		         	  
#if(MSDC_OPTION == 1)
            if(G_bChoose_MSDC == 1)	       
		    {   
		     D12_WriteEndpoint(1,(DeviceRequest.wLength),(UWord16 *)(&MSDC_CONFIGURATION_DESCRIPTOR))  ;		         		         
            }
            else
#endif     
            {
               
             D12_WriteEndpoint(1,(DeviceRequest.wLength),(UWord16 *)(&USB_CONFIGURATION_DESCRIPTOR))  ;
               
            }		      
		      
		 }		       		       
		 else
		 {	
		        		         
#if(MSDC_OPTION == 1)
            if(G_bChoose_MSDC == 1)	       
		    {   
		     D12_WriteEndpoint(1,39,(UWord16 *)(&MSDC_CONFIGURATION_DESCRIPTOR))  ;		         		         
            }
            else
#endif     
            {
               
             D12_WriteEndpoint(1,46,(UWord16 *)(&USB_CONFIGURATION_DESCRIPTOR))  ;
               
            }
		 }	
	  }		     
  }

  else if(DeviceRequest.bRequest==0x05) // set address
  { 
	  D12_SetAddressEnable((DeviceRequest.wValue),  1);
	  D12_WriteEndpoint(1,0,0);		  		  
  }
  
  
  else if(DeviceRequest.bRequest==0x09) // set configuration
  {		
	  D12_WriteEndpoint(1,0,0);
	   if(DeviceRequest.wValue==0x01)
	   {
		 D12_SetEndpointEnable(0);	//disable the endpoint
		 D12_SetEndpointEnable(1);	//enable the endpoint
	   }
  }
  
		
  else if(DeviceRequest.bRequest==0x0b) // set interface	   
  {
	  D12_WriteEndpoint(1,0,0);
  }	
		
	   //  standard request 
	  


}

//*****************************************************************************
/*++

Routine Description:

         process USB  Class Request

Arguments:

        none

Return Value:

        none

--*/
void CTLSETUP_ClassRequest(void)  // get max lun
{
#if(MSDC_OPTION == 1)
	  
	    if(DeviceRequest.bmRequestType == 0x0a1) 
	   {
	    D12_WriteEndpoint(1,1,USB_Device_Descriptor+5);	//0 length logic unit 
	   }
	   		
#endif	  

}