usbofcompuer00.c

基于PHILIPS的D12芯片USB固件的源代码

 delay(100);
}
/******************************************************************************/

/*******************************连接USB**************************************/
void connect_usb(void)
{
#ifdef debug
 Prints("连接USB.\r\n");
#endif
 write_usb_command(0xf3);                         //初始化USBD12
 write_a_usb_data(0x1e);                          //连接USB
 write_a_usb_data(0x47);                          //设置频率
}
/******************************************************************************/

/***************************初始化USB***************************************************/
void init_usb(void)               
{
#ifdef debug
 Prints("USBD12芯片初始化\r\n");
#endif
 set_usb_addr(0);
 set_endpoint_enable();
}
/******************************************************************************/

/****************************USB总线复位处理***********************************/
void usb_bus_reset(void)
{
#ifdef debug
 Prints("USB总线复位.\r\n");
#endif
 usb_flags.Register=0;
 set_endpoint_enable();
}
/******************************************************************************/

/*****************************USB总线挂起处理**********************************/
void usb_bus_suspend(void)
{
#ifdef debug
 Prints("USB总线挂起.\r\n");
#endif
}
/******************************************************************************/

/***************************设置地址***************************************/
void set_usb_address(void)
{
 usb_flags.flags.set_addr=1;
 set_usb_addr(Control_Data.DeviceRequest.wValue);
 while(select_endpoint(1)&0x01);
 write_endpoint_buff(1,0,0);
 while(select_endpoint(1)&0x01);
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/**************************获取状态响应*****************************************/
void get_status(uint8 receiver)
{
 uint8 status[2];
 switch (receiver)
  {
   case 0:                        //获取设备状态
    status[0]=0x00;
    status[1]=0x00;
    break;
   case 1:                        //获取接口状态
    status[0]=0x00;
    status[0]=0x00;
    break;
   case 2:                        //获取端点状态
    status[0]=0x00;
    status[1]=0x00;
    break;
   }
  write_endpoint_buff(1,2,status);
  usb_flags.flags.usb_endp0_in=0;
}
/******************************************************************************/

/*********************清除特性*******************************************/
void clear_feature(uint8 receiver)    
{
#ifdef debug
 Prints("    清除特性.\r\n");
#endif
 receiver=0;
 write_endpoint_buff(1,0,0);
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/*******************设置特性**************************************************/
void set_feature(uint8 receiver)
{
#ifdef debug
 Prints("    设置特性.\r\n");
#endif
 receiver=0;
 write_endpoint_buff(1,0,0);
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/*****************************设置描述*****************************************/
void set_descriptor(void)
{
#ifdef debug
 Prints("    设置描述符.\r\n");
#endif
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/***************************设置配置*******************************************/
void set_configuration(void)
{
#ifdef debug
 Prints("    设置配置.\r\n");
#endif
 write_endpoint_buff(1,0,0);
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/************************获取配置状态******************************************/
void get_configuration(void)
{ 
 uint8 value=0x01;
#ifdef debug
 Prints("    获取配置.\r\n");
#endif
 write_endpoint_buff(1,1,&value);
 usb_flags.flags.usb_endp0_in=0;
}
/******************************************************************************/

/****************************设置接口************************************/
void set_interface(void)
{
#ifdef debug
 Prints("    设置接口.\r\n");
#endif
 write_endpoint_buff(1,0,0);
 usb_flags.flags.usb_endp0_in=0;
 usb_flags.flags.setup_packet_out=0;
}
/******************************************************************************/

/***************************获取接口状态***************************************/
void get_interface(void)
{
 uint8 value=0x01;
#ifdef debug
 Prints("    获取接口.\r\n");
#endif
 write_endpoint_buff(1,1,&value);
 usb_flags.flags.usb_endp0_in=0;
}
/******************************************************************************/

/***********************获取描述符*********************************************/
void get_descriptor(void)
{
#ifdef debug
 Prints("    获取描述符.\r\n");
#endif
  if(!usb_flags.flags.not_end)
     {
      switch(MSB(Control_Data.DeviceRequest.wValue))
	   {
        case DEVICE_DESCRIPTOR:
		    #ifdef debug
		     Prints("        获取设备描述符.\r\n");
			#endif
	         Control_Data.wCount=sizeof(DEVICE_DESCRIPTOR_STRUCT);
 	         Control_Data.pData=(uint8 *)(&device_descriptor);
             break;
        case CONFIGURATION_DESCRIPTOR:
		    #ifdef debug
			 Prints("        获取配置描述符.\r\n");
			#endif
             Control_Data.wCount=SWAP16(con_int_endp_descriptor.configuration_descriptor.wTotalLength);
			 Control_Data.pData=(uint8 *)(&con_int_endp_descriptor);
             if(Control_Data.wLength<Control_Data.wCount)Control_Data.wCount=Control_Data.wLength;
             break;
		case STRING_DESCRIPTOR:
		    #ifdef debug
		     Prints("        获取字符串描述符.\r\n");
			#endif
			 switch(LSB(Control_Data.DeviceRequest.wValue))
			  {
			   case 0:
			   #ifdef debug
			    Prints("            获取语言ID.\r\n");
			   #endif
			    Control_Data.wCount=LANGUAGE_ID[0];
                Control_Data.pData=LANGUAGE_ID;
   			    break;

			   case 1:
			   #ifdef debug
			    Prints("            获取厂商字符串.\r\n");
			   #endif
			    Control_Data.wCount=ManufacturerString[0];
                Control_Data.pData=ManufacturerString;
			    break;

			   case 2:
			   #ifdef debug
			    Prints("            获取产品字符串.\r\n");
			   #endif
			    Control_Data.wCount=ProducterString[0];
                Control_Data.pData=ProducterString;
			    break;

			   case 3:
			   #ifdef debug
                 Prints("            获取设备序列号.\r\n");
			   #endif
			     Control_Data.wCount=device_serial_number[0];
			     Control_Data.pData=device_serial_number;
			   break;

			   default:
                 Prints("            其它描述符(未知)，描述符编码：");
				 PrintHex(MSB(Control_Data.DeviceRequest.wValue));
				 Prints("\r\n");
                 DispLineInf();
               break;
			  }
			 break;
		 default:
		     Prints("       获取其它描述符..................描述符索引为：");
			 PrintLongInt(MSB(Control_Data.DeviceRequest.wValue));
			 Prints("\r\n"); 
			 DispLineInf();
		  break;
	   	}
      if(Control_Data.wLength<Control_Data.wCount)Control_Data.wCount=Control_Data.wLength;
	 }
	//写数据到D12输入端点
    if(Control_Data.wCount>=MAX_CONTROL_DATA_SIZE)
     {
	  write_endpoint_buff(1,MAX_CONTROL_DATA_SIZE,Control_Data.pData);
	  Control_Data.pData+=MAX_CONTROL_DATA_SIZE;
      Control_Data.wCount-=MAX_CONTROL_DATA_SIZE;
	  if(usb_flags.flags.set_addr)usb_flags.flags.not_end=1;
	   else usb_flags.flags.usb_endp0_in=0;
	  return;
	 }
    else
     {
	  write_endpoint_buff(1,Control_Data.wCount,Control_Data.pData);
      usb_flags.flags.setup_packet_in=0;
	  usb_flags.flags.usb_endp0_in=0;
	  return;
	 }      
}
/******************************************************************************/

/*********************发到接口的获取描述符**************************************/
void get_descriptor_interface(void)
{
#ifdef debug
 Prints("    获取描述符（从接口）.\r\n");
#endif
  if(!usb_flags.flags.not_end)
     {
      switch(MSB(Control_Data.DeviceRequest.wValue))
	   {
        case HID_DESCRIPTOR:
		    #ifdef debug
		     Prints("        获取HID描述符.\r\n");
			#endif
	         Control_Data.wCount=sizeof(HID_DESCRIPTOR_STRUCT);
 	         //Control_Data.pData=(uint8 *)(&hid_descriptor);
             break;
        case REPORT_DESCRIPTOR:
		    #ifdef debug
			 Prints("        获取报告描述符.\r\n");
			#endif
             break;
		case PHYSICAL_DESCRIPTOR:
		    #ifdef debug
		     Prints("        获取物理描述符.\r\n");
			#endif
			 break;
		 default:
		     Prints("       获取其它描述符..................描述符索引为：");
			 PrintLongInt(MSB(Control_Data.DeviceRequest.wValue));
			 Prints("\r\n");
			 DispLineInf();
		  break;
	   	}
      if(Control_Data.wLength<Control_Data.wCount)Control_Data.wCount=Control_Data.wLength;
	 }
	//写数据到D12输入端点
    if(Control_Data.wCount>=MAX_CONTROL_DATA_SIZE)
     {
	  write_endpoint_buff(1,MAX_CONTROL_DATA_SIZE,Control_Data.pData);
	  Control_Data.pData+=MAX_CONTROL_DATA_SIZE;
      Control_Data.wCount-=MAX_CONTROL_DATA_SIZE;
	  if(usb_flags.flags.set_addr)usb_flags.flags.not_end=1;
	   else usb_flags.flags.usb_endp0_in=0;
	  return;
	 }
    else
     {
	  write_endpoint_buff(1,Control_Data.wCount,Control_Data.pData);
      usb_flags.flags.setup_packet_in=0;
	  usb_flags.flags.usb_endp0_in=0;
	  return;
	 }      
}
/******************************************************************************/

//#define debug1
/************************终端点0输出中断处理************************************/
void endp0_out(void)
{
#ifdef debug1
 Prints("ep0 out status,last-status,status: ");
 //PrintHex(read_endpoint_status(0));
#endif
 Last_Status.Register=read_last_status(0);
#ifdef debug1
// PrintHex(Last_Status.Register);
// PrintHex(read_endpoint_status(0));
 Prints("\r\n");
 Prints("端点0输出数据：");
 read_endpoint_buff(0,16,OutBuffer);	
#endif

 if(Last_Status.Status.setup_packet) //setup包 
 {
  Control_Data.wLength=0;
  Control_Data.wCount=0;
  if(read_endpoint_buff(0,sizeof(Control_Data.DeviceRequest),(uint8 *)(&(Control_Data.DeviceRequest)))!=sizeof(REQUESTCMD))
  {
   set_endpoint_status(0,0);
   set_endpoint_status(1,0);
   return;
  }
  Control_Data.DeviceRequest.wValue=SWAP16(Control_Data.DeviceRequest.wValue);
  Control_Data.DeviceRequest.wIndex=SWAP16(Control_Data.DeviceRequest.wIndex);
  Control_Data.DeviceRequest.wLength=SWAP16(Control_Data.DeviceRequest.wLength);

  ack_setup(0);
  ack_setup(1);
  select_endpoint(0);
  clear_buffer();
  
  Control_Data.wLength=Control_Data.DeviceRequest.wLength;
  usb_flags.flags.not_end=0;
  usb_flags.flags.usb_endp0_in=1;
  if(Control_Data.DeviceRequest.bmRequestType&0x80)
  {
   usb_flags.flags.setup_packet_in=1;
   usb_flags.flags.setup_packet_out=0;
   return;
  }
  else 
  {
   usb_flags.flags.setup_packet_in=0;
   usb_flags.flags.setup_packet_out=1;
   if(Control_Data.wLength!=0)
   {
    usb_flags.flags.usb_endp0_in=0;
   }
   return;
  }
 }
 else
 {
  if(usb_flags.flags.setup_packet_out) 
  {
   usb_flags.flags.usb_endp0_in=1;
    switch(Control_Data.DeviceRequest.bmRequestType&0x60)
	 {
	   case 0x00:  //标准请求
	   #ifdef debug
	   Prints("USB标准输出请求：数据阶段.\r\n");
	   #endif
	   switch(Control_Data.DeviceRequest.bmRequestType&0x1F)
	    {
		 case 0:   //到设备
	     switch (Control_Data.DeviceRequest.bRequest)
	      {
		   case     CLEAR_FEATURE: /*ClearFeatureD(0);*/break;
		   case       SET_FEATURE: /*SetFeatureD(0);*/break;
		   case       SET_ADDRESS: /*SetUsbAddressD();*/break;          //set_address	           
		   case    SET_DESCRIPTOR: /*SetDescriptorD();*/break;           //set_descriptor
		   case SET_CONFIGURATION: /*SetConfigurationD();*/ break;       //set_configurat               	          
	  	   default: break;
		  }
		 break;
		 
		 case 1:   //到接口
	      switch (Control_Data.DeviceRequest.bRequest)
		   {
		    case CLEAR_FEATURE:  /*ClearFeatureD(1);*/break;
		    case   SET_FEATURE:  /*SetFeatureD(1);*/break;
	        case SET_INTERFACE: /*SetInterfaceD();*/break;
		    default: break;
	        }
		 break;
		 
		 case 2:   //到端点
		  switch (Control_Data.DeviceRequest.bRequest)
		   {
		    case CLEAR_FEATURE: /*ClearFeature(2);*/break;
		    case   SET_FEATURE: /*SetFeature(2);*/break;
	        default: break;      
		   }
		 break;

		 default: break;
	    }
      break;

	  case 0x20:  //类请求
	  #ifdef debug
      Prints("USB类输出请求：数据阶段.\r\n");
	  #endif
	   switch(Control_Data.DeviceRequest.bmRequestType&0x1F)
	    {
		 case 0:    //接收者为设备
	     switch (Control_Data.DeviceRequest.bRequest)
	      {             	          
	  	   default: break;
		  }
		 break;

		 case 1:   //接收者为接口
	      switch (Control_Data.DeviceRequest.bRequest)
		   {
		    default: break;
	        }
		 
		 break;

		 case 2:   //接收者为端点
		  switch (Control_Data.DeviceRequest.bRequest)
		   {
	        default: break;      
		   }
		 break;
		 
		 case 3: //其它接收者
		  switch (Control_Data.DeviceRequest.bRequest)
		   {
	        default: break;      
		   }break;
		   		  
		 default: break;
	    }      
	   break;

       case 0x40:  //用户请求
	   #ifdef debug
	   Prints("USB用户输出请求：数据阶段.\r\n");
	   #endif
	   switch(Control_Data.DeviceRequest.bmRequestType&0x1F)
	    {
		 case 0:    //接收者为设备
	     switch (Control_Data.DeviceRequest.bRequest)
	      {             	          
	  	   default: break;
		  }
		 break;
		 
		 case 1:   //接收者为接口
	      switch (Control_Data.DeviceRequest.bRequest)
		   {
		    default: break;
	        }
	     break;
		 
		 case 2:   //接收者为端点
		  switch (Control_Data.DeviceRequest.bRequest)
		   {
	        default: break;      
		   }
		 break;
		 
		 case 3: //其它接收者
		  switch (Control_Data.DeviceRequest.bRequest)
		   {
	        default: break;