📄 usb.lst
字号:
638 2
639 2 ack_setup(0);
640 2 ack_setup(1);
641 2 Control_Data.wLength=Control_Data.DeviceRequest.wLength;
642 2 USB_not_end=0;
643 2 USB_usb_endp0_in=1;
644 2 USB_setup_packet_in=0;
645 2 USB_setup_packet_out=0;
646 2 if(Control_Data.DeviceRequest.bmRequestType&0x80){USB_setup_packet_in=1;return;}
647 2 else {USB_setup_packet_out=1;return;}
648 2 }
649 1 else
650 1 {
651 2 select_endpoint(0);
652 2 clear_buffer();
653 2 }
654 1 }
655
656 void endp0_in(void) //终端点0输入处理
657 {
658 1 read_last_status(1);
659 1 if(USB_setup_packet_in||USB_not_end)
660 1 {
661 2 if((Control_Data.DeviceRequest.bmRequestType==0xA1)&&(Control_Data.DeviceRequest.bRequest==0xFE))
662 2 get_max_LUN();
663 2 switch(Control_Data.DeviceRequest.bmRequestType&0x7B)
664 2 {
665 3 case 0:
666 3 switch (Control_Data.DeviceRequest.bRequest)
667 3 {
668 4 case 0: get_status(0);break;
669 4 case 6: get_descriptor();break;
C51 COMPILER V7.06 USB 03/02/2006 23:51:19 PAGE 12
670 4 case 8: get_configuration();break;
671 4 default:break;
672 4 }
673 3 case 1:
674 3 switch (Control_Data.DeviceRequest.bRequest)
675 3 {
676 4 case 0: get_status(1);break;
677 4 case 10: get_interface();break;
678 4 default: break;
679 4 }
680 3 case 2:
681 3 {
682 4 if(Control_Data.DeviceRequest.bRequest==0)get_status(2);
683 4 }
684 3 default: break;
685 3 }
686 2 return;
687 2 }
688 1 if(USB_setup_packet_out)
689 1 {
690 2 if((Control_Data.DeviceRequest.bmRequestType==0x21)&&(Control_Data.DeviceRequest.bRequest==0xFF))
691 2 mass_storage_reset();
692 2
693 2 switch(Control_Data.DeviceRequest.bmRequestType&0x03)
694 2 {
695 3 case 0:
696 3 switch (Control_Data.DeviceRequest.bRequest)
697 3 {
698 4 case CLEAR_FEATURE: clear_feature(0);break;
699 4 case SET_FEATURE: set_feature(0);break;
700 4 case SET_ADDRESS: set_usb_address();break; //set_address
701 4 case SET_DESCRIPTOR: set_descriptor();break; //set_descriptor
702 4 case SET_CONFIGURATION: set_configuration(); break; //set_configurat
703 4 default: break;
704 4 }break;
705 3 case 1:
706 3 switch (Control_Data.DeviceRequest.bRequest)
707 3 {
708 4 case CLEAR_FEATURE: clear_feature(1);break;
709 4 case SET_FEATURE: set_feature(1); break;
710 4 case SET_INTERFACE: set_interface();break;
711 4 default: break;
712 4 }break;
713 3 case 2:
714 3 switch (Control_Data.DeviceRequest.bRequest)
715 3 {
716 4 case CLEAR_FEATURE: clear_feature(2);break;
717 4 case SET_FEATURE: set_feature(2);break;
718 4 default: break;
719 4 }break;
720 3 default: break;
721 3 }
722 2 }
723 1 }
724
725 /*void endp1_out(void)
726 {
727 printc(0xcc);
728 }*/
729
730
731 /*void endp1_in(void)
C51 COMPILER V7.06 USB 03/02/2006 23:51:19 PAGE 13
732 {
733 printc(0xcc);
734 }*/
735
736 void Return_CSW(unsigned long int DataResidue,unsigned char status) //返回CSW数据包
737 {
738 1
739 1 csw.dCSWTag=cbw.dCBWTag;
740 1 csw.dCSWDataResidue=DataResidue;
741 1 csw.bCSWStatus=status;
742 1 while(select_endpoint(5)&0x01);
743 1 write_endpoint_buff(5,sizeof(CSW),(unsigned char *)(&csw));
744 1 USB_usb_endp2_in=0;
745 1 USB_usb_endp2_out=0;
746 1 SCSI_Command=1;
747 1 SCSI_Data=0;
748 1 }
749
750
751 void write_10(void) //SCSI写操作
752 {
753 1 unsigned long int LBA,Byte_Count;
754 1 unsigned char i;
755 1 if(SCSI_Data)
756 1 {
757 2 ((unsigned char*)&LBA)[0]=cbw.CBWCB[2];
758 2 ((unsigned char*)&LBA)[1]=cbw.CBWCB[3];
759 2 ((unsigned char*)&LBA)[2]=cbw.CBWCB[4];
760 2 ((unsigned char*)&LBA)[3]=cbw.CBWCB[5];
761 2
762 2 ((unsigned char*)&Byte_Count)[0]=0;
763 2 ((unsigned char*)&Byte_Count)[1]=cbw.CBWCB[7];
764 2 ((unsigned char*)&Byte_Count)[2]=cbw.CBWCB[8];
765 2 ((unsigned char*)&Byte_Count)[3]=0;
766 2 Byte_Count<<=1;
767 2 while(USB_usb_endp2_out)
768 2 {
769 3 if((((unsigned char *)&Byte_Count)[3]==0)&&((((unsigned char *)&Byte_Count)[2]&0x01)==0))
770 3 {
771 4 write_IDE_LBA0(((unsigned char*)&LBA)[0]);
772 4 write_IDE_LBA1(((unsigned char*)&LBA)[1]);
773 4 write_IDE_LBA2(((unsigned char*)&LBA)[2]);
774 4 write_IDE_LBA3(((unsigned char*)&LBA)[3]);
775 4 LBA++;
776 4 write_IDE_sector_count(1);
777 4 wait_IDE_busy();
778 4 write_IDE_sector();
779 4 IDE_Address=IDE_Data;
780 4 set_IDE_address();
781 4 }
782 3 while(!(select_endpoint(4)&0x01));
783 3 if(Byte_Count>64)
784 3 {
785 4 read_endpoint_buff(4,64,buffer);
786 4 Byte_Count-=64;
787 4 }
788 3 else
789 3 {
790 4 read_endpoint_buff(4,Byte_Count,buffer);
791 4 Return_CSW(0x00,SUCCESS);
792 4 }
793 3 for(i=0;i<64;i++)
C51 COMPILER V7.06 USB 03/02/2006 23:51:19 PAGE 14
794 3 {
795 4 while(!IDE_IORDY);
796 4
797 4 IDE_DIOW=0;
798 4 IDE_DATA_L=buffer[i];
799 4 i++;
800 4 IDE_DATA_H=buffer[i];
801 4 IDE_DIOW=1;
802 4 }
803 3 }
804 2 wait_IDE_busy();
805 2 IDE_Address=IDE_Bus_Not_Use;
806 2 set_IDE_address();
807 2 }
808 1 }
809
810
811 void endp2_out(void) //主端点输出处理
812 {
813 1 if(SCSI_Command)
814 1 {
815 2 if(read_endpoint_buff(4,sizeof(CBW),(unsigned char *)(&cbw))!=sizeof(CBW)){error(2);return;}
816 2 if(cbw.dCBWSignature!=0x55534243){error(3);return;}
817 2 SCSI_Command=0;
818 2 SCSI_Data=1;
819 2 if(cbw.bmCBWFlags&0x80)
820 2 {
821 3 USB_usb_endp2_in=1;
822 3 USB_usb_endp2_out=0;
823 3 }
824 2 else
825 2 {
826 3 USB_usb_endp2_in=0;
827 3 USB_usb_endp2_out=1;
828 3 switch(cbw.CBWCB[0])
829 3 {
830 4 case Write_10: write_10();break;
831 4 case Test_Unit_Ready: Return_CSW(0x00,SUCCESS);break;
832 4 case Verify: Return_CSW(0x00,SUCCESS);break;
833 4 default : Return_CSW(cbw.dCBWDataTransgerLength,FAIL);break;
834 4 }
835 3 }
836 2 }
837 1 else
838 1 {
839 2 read_last_status(4);
840 2 select_endpoint(4);
841 2 clear_buffer();
842 2 }
843 1 }
844
845
846 void read_10(void) //SCSI读处理
847 {
848 1 unsigned long int LBA=0,Byte_Count;
849 1 unsigned char i;
850 1 if(SCSI_Data)
851 1 {
852 2
853 2 ((unsigned char*)&LBA)[0]=cbw.CBWCB[2];
854 2 ((unsigned char*)&LBA)[1]=cbw.CBWCB[3];
855 2 ((unsigned char*)&LBA)[2]=cbw.CBWCB[4];
C51 COMPILER V7.06 USB 03/02/2006 23:51:19 PAGE 15
856 2 ((unsigned char*)&LBA)[3]=cbw.CBWCB[5];
857 2
858 2 ((unsigned char*)&Byte_Count)[0]=0;
859 2 ((unsigned char*)&Byte_Count)[1]=cbw.CBWCB[7];
860 2 ((unsigned char*)&Byte_Count)[2]=cbw.CBWCB[8];
861 2 ((unsigned char*)&Byte_Count)[3]=0;
862 2 Byte_Count<<=1;
863 2 pData=buffer;
864 2 while(USB_usb_endp2_in)
865 2 {
866 3 if((((unsigned char *)&Byte_Count)[3]==0)&&((((unsigned char *)&Byte_Count)[2]&0x01)==0))
867 3 {
868 4 write_IDE_LBA0(((unsigned char*)&LBA)[0]);
869 4 write_IDE_LBA1(((unsigned char*)&LBA)[1]);
870 4 write_IDE_LBA2(((unsigned char*)&LBA)[2]);
871 4 write_IDE_LBA3(((unsigned char*)&LBA)[3]);
872 4 LBA++;
873 4 write_IDE_sector_count(1);
874 4 read_IDE_sector();
875 4 IDE_Address=IDE_Data;
876 4 set_IDE_address();
877 4 }
878 3 IDE_DATA_H=0xFF;
879 3 for(i=0;i<64;i++)
880 3 {
881 4 while(!IDE_IORDY);
882 4 IDE_DIOR=0;
883 4 buffer[i]=IDE_DATA_L;
884 4 i++;
885 4 buffer[i]=IDE_DATA_H;
886 4 IDE_DIOR=1;
887 4 }
888 3 while(select_endpoint(5)&0x01);
889 3 if(Byte_Count>MAX_BULK_DATA_SIZE)
890 3 {
891 4 write_endpoint_buff(5,MAX_BULK_DATA_SIZE,pData);
892 4 Byte_Count-=MAX_BULK_DATA_SIZE;
893 4 }
894 3 else
895 3 {
896 4 write_endpoint_buff(5,Byte_Count,pData);
897 4 Return_CSW(0x00,SUCCESS);
898 4 IDE_Address=IDE_Bus_Not_Use;
899 4 set_IDE_address();
900 4 }
901 3 }
902 2 }
903 1 else error(2);return;
904 1 }
905
906 void endp2_in(void) //主端点输入处理
907 {
908 1 switch(cbw.CBWCB[0])
909 1 {
910 2 case Read_10: read_10();break;
911 2 case Inquiry: write_endpoint_buff(5,0x24,DISK_INF);Return_CSW(0x00,SUCCESS); break;
912 2 case Read_Capacity: write_endpoint_buff(5,0x08,DISK_CAPACITY);Return_CSW(0x00,SUCCESS);break;
913 2 case Read_Format_capacity: write_endpoint_buff(5,0x00,0x00);Return_CSW(cbw.dCBWDataTransgerLength,FAI
-L);break;
914 2 case Request_Sense: write_endpoint_buff(5,0x12,SENSE);Return_CSW(0x00,SUCCESS);break;
915 2 case Medium_Removal: Return_CSW(0x00,SUCCESS);break;
916 2 case 0x1a: write_endpoint_buff(5,0x00,0x00);Return_CSW(cbw.dCBWDataTransgerLength,FAIL);
C51 COMPILER V7.06 USB 03/02/2006 23:51:19 PAGE 16
-break;
917 2 default : write_endpoint_buff(5,0x00,0x00);Return_CSW(cbw.dCBWDataTransgerLength,FAI
-L);break;
918 2 }
919 1 }
920
921 void main(void)
922 {
923 1
924 1 disconnect_usb();
925 1
926 1 system_initial();
927 1 init_usb();
928 1 connect_usb();
929 1
930 1 while(1)
931 1 {
932 2 if(!USB_INT)
933 2 {
934 3 read_interrupt_register();
935 3
936 3 if(Interrupt_bus_reset){usb_bus_reset();continue;}
937 3 if(Interrupt_suspend_change){usb_bus_suspend();continue;}
938 3 if(Interrupt_control_out_port){endp0_out();continue;}
939 3 if(Interrupt_control_in_port&&USB_usb_endp0_in){endp0_in();continue;}
940 3 if(Interrupt_main_out_port){endp2_out();continue;}
941 3 if(Interrupt_main_in_port&&USB_usb_endp2_in){endp2_in();continue;}
942 3 }
943 2 }
944 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 2151 ----
CONSTANT SIZE = 126 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 17 35
IDATA SIZE = 139 ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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