xxgprotodma.lst

一个51写的usb程序 测试过的

C51 COMPILER V6.20c  XXGPROTODMA                                                           01/16/2003 10:36:18 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE XXGPROTODMA
OBJECT MODULE PLACED IN xxgprotodma.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE xxgprotodma.c ROM(COMPACT) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          
   2          #include <stdio.h>
   3          #include <string.h>
   4          
   5          #include "xxgmain.h"
   6          //#include "xxgprotodma.h"
   7          #include "xxghal.h"
   8          //#include "xxgd12ci.h"
   9          #include "xxgusb100.h"
  10          //#include "xxgchap9.h"
  11          
  12          extern CONTROL_XFER ControlData;
  13          extern IO_REQUEST idata ioRequest;
  14          extern EPPFLAGS bEPPflags;
  15          extern BOOL bNoRAM;
  16          
  17          extern void single_transmit(unsigned char * buf, unsigned char len);
  18          extern void stall_ep0(void);
  19          
  20          void get_firmware_version()
  21          {
  22   1      	unsigned char i;
  23   1      
  24   1      	i = 0x30; // firmware version number
  25   1      	single_transmit((unsigned char *)&i, 1);
  26   1      
  27   1      }
  28          
  29          void get_buffer_size()
  30          {
  31   1      	unsigned char i[4];
  32   1      
  33   1      	if(bNoRAM == TRUE) {
  34   2      		i[0] = EP2_PACKET_SIZE;
  35   2      		i[1] = 0;
  36   2      		i[2] = 0;
  37   2      		i[3] = 0;
  38   2      	} else {
  39   2      		i[0] = 0;
  40   2      		i[1] = 1;
  41   2      		i[2] = 0;
  42   2      		i[3] = 0;
  43   2      	}
  44   1      	single_transmit(i, 4);
  45   1      
  46   1      }
  47          
  48          void setup_dma_request()
  49          {
  50   1      	memcpy((unsigned char *)&ioRequest + ControlData.DeviceRequest.wValue,
  51   1      		ControlData.dataBuffer,
  52   1      		ControlData.DeviceRequest.wLength);
  53   1      
  54   1      	ioRequest.uSize = SWAP(ioRequest.uSize);
  55   1      	ioRequest.uAddressL = SWAP(ioRequest.uAddressL);
C51 COMPILER V6.20c  XXGPROTODMA                                                           01/16/2003 10:36:18 PAGE 2   

  56   1      
  57   1      	if(ioRequest.uSize > DMA_BUFFER_SIZE) { // Unaccepted request
  58   2      		stall_ep0();
  59   2      	}
  60   1      	else if(bNoRAM == TRUE && ioRequest.uSize > EP2_PACKET_SIZE) {
  61   2      		stall_ep0();
  62   2      	}
  63   1      	else {
  64   2      		if(bEPPflags.bits.dma_state == DMA_IDLE) {
  65   3      			DISABLE;
  66   3      			bEPPflags.bits.setup_dma ++;
  67   3      			ENABLE;
  68   3      		}
  69   2      		else {
  70   3      			DISABLE;
  71   3      			bEPPflags.bits.dma_state = DMA_PENDING;
  72   3      			ENABLE;
  73   3      		}
  74   2      
  75   2      	} // else if accepted request
  76   1      }
  77          
  78          void read_write_register(void)
  79          {
  80   1      	unsigned char i;
  81   1      
  82   1      	if(ControlData.DeviceRequest.bmRequestType & (unsigned char)USB_ENDPOINT_DIRECTION_MASK) {
  83   2      
  84   2      		if(bEPPflags.bits.verbose)
  85   2      			printf("Read Registers: Offset = 0x%x, Length = 0x%x, Index = 0x%x.\n",
  86   2      				ControlData.DeviceRequest.wValue,
  87   2      				ControlData.DeviceRequest.wLength,
  88   2      				ControlData.DeviceRequest.wIndex);
  89   2      
  90   2      		if(ControlData.DeviceRequest.wIndex == GET_FIRMWARE_VERSION &&
  91   2      			ControlData.DeviceRequest.wValue == 0 &&
  92   2      			ControlData.DeviceRequest.wLength == 1)
  93   2      			get_firmware_version();
  94   2      		else
  95   2      		if(ControlData.DeviceRequest.wIndex == GET_BUFFER_SIZE &&
  96   2      			ControlData.DeviceRequest.wValue == 0 &&
  97   2      			ControlData.DeviceRequest.wLength == 4)
  98   2      			get_buffer_size();
  99   2      		else
 100   2      			stall_ep0();
 101   2      
 102   2      	}	// if read register
 103   1      	else{
 104   2      		if(bEPPflags.bits.verbose) {
 105   3      
 106   3      			//printf("Write Registers: Offset = 0x%x, Length = 0x%x, Index = 0x%x.\n",
 107   3      			//	ControlData.DeviceRequest.wValue,
 108   3      			//	ControlData.DeviceRequest.wLength,
 109   3      			//	ControlData.DeviceRequest.wIndex);
 110   3      
 111   3      			//printf("Data: ");
 112   3      			for(i = 0; i < ControlData.DeviceRequest.wLength; i ++)
 113   3      				printf("0x%bx, ", *((ControlData.dataBuffer)+i));
 114   3      			printf("\n");
 115   3      		}
 116   2      
 117   2      		if(ControlData.DeviceRequest.wIndex == SETUP_DMA_REQUEST &&
C51 COMPILER V6.20c  XXGPROTODMA                                                           01/16/2003 10:36:18 PAGE 3   

 118   2      			ControlData.DeviceRequest.wValue == 0 &&
 119   2      			ControlData.DeviceRequest.wLength == 6)
 120   2      			setup_dma_request();
 121   2      			//stall_ep0();
 122   2      		else
 123   2      			stall_ep0();
 124   2      	}	// if write register
 125   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    372    ----
   CONSTANT SIZE    =     71    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)