protodma.lst

usbhost 开发码

C51 COMPILER V6.12  PROTODMA                                                               07/30/2003 21:27:44 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE PROTODMA
OBJECT MODULE PLACED IN .\PROTODMA.OBJ
COMPILER INVOKED BY: f:\Keil\C51\BIN\C51.EXE .\PROTODMA.C LARGE DEBUG OBJECTEXTEND

stmt level    source

   1          //PROTODMA.C
   2          #include <string.h>
   3          #include "common.h"
   4          #include "mainloop.h"
   5          #include "usb100.h"
   6          #include "chap_9.h"
   7          #include "protodma.h"
   8          
   9          extern CONTROL_XFER ControlData;
  10          extern IO_REQUEST idata ioRequest;
  11          extern EPPFLAGS bEPPflags;
  12          BOOL bNoRAM;
  13          
  14          code void(*VendorDeviceRequest[])(void)=
  15          {
  16          	reserved,
  17          	reserved,
  18          	reserved,
  19          	reserved,
  20          	reserved,
  21          	reserved,
  22          	reserved,
  23          	reserved,
  24          	reserved,
  25          	reserved,
  26          	reserved,
  27          	reserved,
  28          	read_write_register,
  29          	reserved,
  30          	reserved,
  31          	reserved
  32          };
  33          
  34          void get_firmware_version()
  35          {
  36   1      	unsigned char i;
  37   1      
  38   1      	i = 0x30; // firmware version number
  39   1      	single_transmit((unsigned char *)&i, 1);
  40   1      }
  41          
  42          void get_buffer_size()
  43          {
  44   1      	unsigned char i[4];
  45   1      
  46   1      	if(bNoRAM == TRUE) {
  47   2      		i[0] = EP2_PACKET_SIZE;
  48   2      		i[1] = 0;
  49   2      		i[2] = 0;
  50   2      		i[3] = 0;
  51   2      	} else {
  52   2      		i[0] = 0;
  53   2      		i[1] = 1;
  54   2      		i[2] = 0;
  55   2      		i[3] = 0;
C51 COMPILER V6.12  PROTODMA                                                               07/30/2003 21:27:44 PAGE 2   

  56   2      	}
  57   1      	single_transmit((unsigned char *)&i, 4);
  58   1      }
  59          
  60          void setup_dma_request()
  61          {
  62   1      	memcpy((unsigned char *)&ioRequest + ControlData.DeviceRequest.wValue,
  63   1      		ControlData.dataBuffer,
  64   1      		ControlData.DeviceRequest.wLength);
  65   1      
  66   1      	ioRequest.uSize = SWAP(ioRequest.uSize);
  67   1      	ioRequest.uAddressL = SWAP(ioRequest.uAddressL);
  68   1      
  69   1      	if(ioRequest.uSize > DMA_BUFFER_SIZE) { // Unaccepted request
  70   2      		stall_ep0();
  71   2      	}
  72   1      	else if(bNoRAM == TRUE && ioRequest.uSize > EP2_PACKET_SIZE) {
  73   2      		stall_ep0();
  74   2      	}
  75   1      	else {
  76   2      		if(bEPPflags.bits.dma_state == DMA_IDLE) {
  77   3      			DISABLE;
  78   3      			bEPPflags.bits.setup_dma ++;
  79   3      			ENABLE;
  80   3      		}
  81   2      		else {
  82   3      			DISABLE;
  83   3      			bEPPflags.bits.dma_state = DMA_PENDING;
  84   3      			ENABLE;
  85   3      		}
  86   2      
  87   2      	} // else if accepted request
  88   1      }
  89          
  90          void read_write_register(void)
  91          {
  92   1      	unsigned char i;
  93   1      
  94   1      	if(ControlData.DeviceRequest.bmRequestType & (unsigned char)USB_ENDPOINT_DIRECTION_MASK) {
  95   2      
  96   2      		if(bEPPflags.bits.verbose)
  97   2      			printf("Read Registers: Offset = 0x%x, Length = 0x%x, Index = 0x%x.\n",
  98   2      				ControlData.DeviceRequest.wValue,
  99   2      				ControlData.DeviceRequest.wLength,
 100   2      				ControlData.DeviceRequest.wIndex);
 101   2      
 102   2      		if(ControlData.DeviceRequest.wIndex == GET_FIRMWARE_VERSION &&
 103   2      			ControlData.DeviceRequest.wValue == 0 &&
 104   2      			ControlData.DeviceRequest.wLength == 1)
 105   2      			get_firmware_version();
 106   2      		else
 107   2      		if(ControlData.DeviceRequest.wIndex == GET_BUFFER_SIZE &&
 108   2      			ControlData.DeviceRequest.wValue == 0 &&
 109   2      			ControlData.DeviceRequest.wLength == 4)
 110   2      			get_buffer_size();
 111   2      		else
 112   2      			stall_ep0();
 113   2      
 114   2      	}	// if read register
 115   1      	else{
 116   2      		if(bEPPflags.bits.verbose) {
 117   3      
C51 COMPILER V6.12  PROTODMA                                                               07/30/2003 21:27:44 PAGE 3   

 118   3      			printf("Write Registers: Offset = 0x%x, Length = 0x%x, Index = 0x%x.\n",
 119   3      				ControlData.DeviceRequest.wValue,
 120   3      				ControlData.DeviceRequest.wLength,
 121   3      				ControlData.DeviceRequest.wIndex);
 122   3      
 123   3      			printf("Data: ");
 124   3      			for(i = 0; i < ControlData.DeviceRequest.wLength; i ++)
 125   3      				printf("0x%bx, ", *((ControlData.dataBuffer)+i));
 126   3      			printf("\n");
 127   3      		}
 128   2      
 129   2      		if(ControlData.DeviceRequest.wIndex == SETUP_DMA_REQUEST &&
 130   2      			ControlData.DeviceRequest.wValue == 0 &&
 131   2      			ControlData.DeviceRequest.wLength == 6)
 132   2      			setup_dma_request();
 133   2      		else
 134   2      			stall_ep0();
 135   2      	}	// if write register
 136   1      }
 137          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    559    ----
   CONSTANT SIZE    =    188    ----
   XDATA SIZE       =      1       6
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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