protodma.lst

基于C51和PDIUSBD12USB接口芯片的USB通信固件设计源程序代码

C51 COMPILER V7.01  PROTODMA                                                               08/18/2003 08:43:21 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE PROTODMA
OBJECT MODULE PLACED IN Protodma.OBJ
COMPILER INVOKED BY: C:\Keil7.0\C51\BIN\C51.EXE Protodma.c OPTIMIZE(2,SPEED) DEBUG OBJECTEXTEND TABS(6)

stmt level    source

   1          #include <stdio.h>
   2          #include <string.h>
   3          
   4          #include <reg51.h>                /* special function register declarations   */
   5          #include "epphal.h"
   6          
   7          #include "d12ci.h"
   8          #include "mainloop.h"
   9          #include "usb100.h"
  10          #include "chap_9.h"
  11          
  12          extern CONTROL_XFER ControlData;
  13          extern IO_REQUEST idata ioRequest;
  14          extern EPPFLAGS bEPPflags;
  15          extern BOOL bNoRAM;
  16          extern unsigned char idata EpBuf[EP2_PACKET_SIZE];
  17          
  18          //获取固件版本号
  19          void get_firmware_version()
  20          {
  21   1            unsigned char i;
  22   1      
  23   1            i = 0x30; // firmware version number
  24   1            single_transmit((unsigned char *)&i, 1);
  25   1      }
  26          
  27          //获取端点2缓存区大小
  28          void get_buffer_size()
  29          {
  30   1            unsigned char i[4];
  31   1      
  32   1            if(bNoRAM == TRUE) {
  33   2                  i[0] = EP2_PACKET_SIZE;
  34   2                  i[1] = 0;
  35   2                  i[2] = 0;
  36   2                  i[3] = 0;
  37   2            } else {
  38   2                  i[0] = 0;
  39   2                  i[1] = 1;
  40   2                  i[2] = 0;
  41   2                  i[3] = 0;
  42   2            }
  43   1            single_transmit((unsigned char *)&i, 4);
  44   1      }
  45          
  46          //DMA请求响应子程序
  47          void setup_dma_request()
  48          {
  49   1            memcpy((unsigned char *)&ioRequest + ControlData.DeviceRequest.wValue,
  50   1                  ControlData.dataBuffer,
  51   1                  ControlData.DeviceRequest.wLength);
  52   1      
  53   1            ioRequest.uSize = SWAP(ioRequest.uSize);
  54   1            ioRequest.uAddressL = SWAP(ioRequest.uAddressL);
  55   1      
C51 COMPILER V7.01  PROTODMA                                                               08/18/2003 08:43:21 PAGE 2   

  56   1            if(ioRequest.uSize > DMA_BUFFER_SIZE) { // Unaccepted request
  57   2                  stall_ep0();//DMA设置出错
  58   2            }
  59   1            else if(bNoRAM == TRUE && ioRequest.uSize > EP2_PACKET_SIZE) {
  60   2                  stall_ep0();//DMA缓冲区出错
  61   2            }
  62   1            else {
  63   2                  if(bEPPflags.bits.dma_state == DMA_IDLE) {
  64   3                        DISABLE;
  65   3                        bEPPflags.bits.setup_dma ++;
  66   3                        ENABLE;
  67   3                  }
  68   2                  else {
  69   3                        DISABLE;
  70   3                        bEPPflags.bits.dma_state = DMA_PENDING;
  71   3                        ENABLE;
  72   3                  }
  73   2      
  74   2            } // else if accepted request
  75   1      }
  76          
  77          //厂商请求处理
  78          void read_write_register(void)
  79          {
  80   1            unsigned char i,len,epstatus;
  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();//获取固件版本号
  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();//获取缓冲区大小
  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 V7.01  PROTODMA                                                               08/18/2003 08:43:21 PAGE 3   

 118   2                        ControlData.DeviceRequest.wValue == 0 &&
 119   2                        ControlData.DeviceRequest.wLength == 6)
 120   2                        {
 121   3                              if(ControlData.dataBuffer[5]==0x81)
 122   3                              {
 123   4                                    D12_WriteEndpoint(5, ControlData.dataBuffer[3], EpBuf);//发送数据
 124   4                              }
 125   3                              if(ControlData.dataBuffer[5]==0x80)
 126   3                              {
 127   4                                    epstatus=D12_ReadEndpointStatus(4);
 128   4                                    epstatus &= 0x60;
 129   4                                    if (epstatus == 0x60)
 130   4                                          len = D12_ReadEndpoint(4, 64, EpBuf);//读取双缓冲区数据
 131   4                              }
 132   3                              single_transmit(0, 0);
 133   3                              //setup_dma_request();//DMA设置处理,因为未使用DMA所以屏蔽掉
 134   3                        }                       
 135   2                  else
 136   2                        stall_ep0();
 137   2            }     // if write register
 138   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    590    ----
   CONSTANT SIZE    =    140    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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