usb.i

51环境下的FAT及FAT32文件系统源码

#line 1 "usb.c" /0
  
#line 1 "common.h" /0
  
#line 1 "C:\KEIL\C51\INC\REG51.H" /0






 
 
 
 
 
 
 sfr P0   = 0x80;
 sfr P1   = 0x90;
 sfr P2   = 0xA0;
 sfr P3   = 0xB0;
 sfr PSW  = 0xD0;
 sfr ACC  = 0xE0;
 sfr B    = 0xF0;
 sfr SP   = 0x81;
 sfr DPL  = 0x82;
 sfr DPH  = 0x83;
 sfr PCON = 0x87;
 sfr TCON = 0x88;
 sfr TMOD = 0x89;
 sfr TL0  = 0x8A;
 sfr TL1  = 0x8B;
 sfr TH0  = 0x8C;
 sfr TH1  = 0x8D;
 sfr IE   = 0xA8;
 sfr IP   = 0xB8;
 sfr SCON = 0x98;
 sfr SBUF = 0x99;
 
 
 
 
 sbit CY   = 0xD7;
 sbit AC   = 0xD6;
 sbit F0   = 0xD5;
 sbit RS1  = 0xD4;
 sbit RS0  = 0xD3;
 sbit OV   = 0xD2;
 sbit P    = 0xD0;
 
 
 sbit TF1  = 0x8F;
 sbit TR1  = 0x8E;
 sbit TF0  = 0x8D;
 sbit TR0  = 0x8C;
 sbit IE1  = 0x8B;
 sbit IT1  = 0x8A;
 sbit IE0  = 0x89;
 sbit IT0  = 0x88;
 
 
 sbit EA   = 0xAF;
 sbit ES   = 0xAC;
 sbit ET1  = 0xAB;
 sbit EX1  = 0xAA;
 sbit ET0  = 0xA9;
 sbit EX0  = 0xA8;
 
 
 sbit PS   = 0xBC;
 sbit PT1  = 0xBB;
 sbit PX1  = 0xBA;
 sbit PT0  = 0xB9;
 sbit PX0  = 0xB8;
 
 
 sbit RD   = 0xB7;
 sbit WR   = 0xB6;
 sbit T1   = 0xB5;
 sbit T0   = 0xB4;
 sbit INT1 = 0xB3;
 sbit INT0 = 0xB2;
 sbit TXD  = 0xB1;
 sbit RXD  = 0xB0;
 
 
 sbit SM0  = 0x9F;
 sbit SM1  = 0x9E;
 sbit SM2  = 0x9D;
 sbit REN  = 0x9C;
 sbit TB8  = 0x9B;
 sbit RB8  = 0x9A;
 sbit TI   = 0x99;
 sbit RI   = 0x98;
 
 
#line 1 "common.h" /0
 
  
#line 1 "C:\KEIL\C51\INC\ABSACC.H" /0






 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
#line 24 "C:\KEIL\C51\INC\ABSACC.H" /1
  
  
  
  
 
#line 29 "C:\KEIL\C51\INC\ABSACC.H" /0
 
 
 
 
 
 
 
#line 2 "common.h" /0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 typedef unsigned char       UINT8;
 typedef unsigned short      UINT16;
 typedef unsigned long       UINT32;
 
 typedef union {
 struct 
 {
 UINT8    Type;
 UINT8    Index;
 } Descriptor;
 
 struct 
 {
 UINT8 tx0;   
 UINT8 tx1;   
 UINT8 endp;   
 UINT8 c0;    
 } chars;
 
 struct 
 {
 UINT8 c3;   
 UINT8 c2;   
 UINT8 c1;   
 UINT8 c0;    
 } chars0;
 
 struct
 {
 UINT16 i1;     
 UINT16 i0;     
 } ints;
 
 UINT32 u0;
 
 } FLEXI_INT32;
 
 typedef union  {
 struct 
 {
 UINT8 c1;    
 UINT8 c0;    
 } chars;
 
 UINT16 i0;
 } FLEXI_INT16, *pFLEXI_INT16;
 
 typedef struct _XXG_FLAGS
 {
 unsigned char bTimer        :1;
 unsigned char bIN_ISR		:1;
 unsigned char bCOM_ERR		:1;
 unsigned char bTimeout		:1;
 unsigned char bData1		:1;
 unsigned char bUartInDone	:1;
 unsigned char bMassDevice	:1;
 unsigned char bToggle       :1;
 
 unsigned char SLAVE_IS_ATTACHED	:1;
 unsigned char SLAVE_REMOVED	:1;
 unsigned char SLAVE_FOUND	:1;	 
 unsigned char SLAVE_ENUMERATED	:1;	 
 unsigned char SLAVE_ONLINE	:1;
 unsigned char SLAVE_STALLED     :1;
 unsigned char TIMEOUT_ERR	:1; 	 
 unsigned char DATA_STOP		:1;	 
 } XXGFLAGS;
 
 typedef struct
 {
 unsigned int sector;
 unsigned char offset;
 } DIR_IDX, *pDIR_IDX;
 



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 sfr P4 = 0xA1;
 
 sfr P0_DDR = 0xA2;
 sfr P1_DDR = 0xA3;
 sfr P2_DDR = 0xA4;
 sfr P3_DDR = 0xA5;
 sfr P4_DDR = 0xA6;
 
 sfr P_PU = 0xA7;
 sfr P_PD = 0xA9;
 
 sfr WDT = 0xAA;
 
 sfr SPI_DATA= 0x91;
 sfr SPI_CTL0= 0x92;
 sfr SPI_CTL1= 0x93;
 sfr SPI_STA0= 0x94;
 
 sfr SD_CTL0= 0x95;
 sfr SD_STA0= 0x96;
 sfr SD_STA1= 0x97;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
#line 205 "common.h" /1
  
  
 
#line 208 "common.h" /0
 
 
 
 
 
 unsigned short WordSwap(unsigned short input);
 void DelayMs(unsigned int nFactor);
 void DelayUs(unsigned char nFactor);
 unsigned long SwapINT32(unsigned long dData);
 unsigned char SendUart(unsigned char *pUsrBuf, unsigned int num);
 
 
 
#line 1 "usb.c" /0
 
  
#line 1 "usb.h" /0
  
#line 1 "C:\KEIL\C51\INC\ABSACC.H" /0






 
 
 
#line 10 "C:\KEIL\C51\INC\ABSACC.H" /1
  
 
  
  
  
  
 
  
  
  
  
 
 
 
  
  
  
  
 
  
  
  
  
 
 
 
#line 1 "usb.h" /0
#line 1 "usb.h" /0
 
 
 
 
 
 
 
 
 
 
 
 typedef struct
 {
  unsigned short  wVID, wPID;        
  unsigned char  bClass;            
  unsigned char  bNumOfEPs;         
  unsigned char  iMfg;				 
  unsigned char  iPdt;				 
  unsigned char  bId1;
  unsigned char  bId2;
  unsigned char  bEPAddr[0x05];    
  unsigned char  bAttr[0x05];      
  unsigned short  wPayLoad[0x05];   
  unsigned short  bInterval[0x05];  
  unsigned char  bData1[0x05];     
 } USBDEV, *pUSBDEV;
 
 
 typedef struct
 {
  unsigned char bmRequest;
  unsigned char bRequest;
  unsigned short wValue;
  unsigned short wIndex;
  unsigned short wLength;
 } SetupPKG, *pSetupPKG;
 
 typedef struct
 {
 unsigned char usbaddr;
 
 unsigned char pid;
 unsigned char wPayload;
 unsigned int  wLen;
 unsigned char *buffer;	
 SetupPKG setup;
 unsigned char epbulkin;
 unsigned char epbulkout;
 
 } XXGPKG, *pXXGPKG;
 
 
 typedef struct	            
 {   unsigned char bLength;		    
  unsigned char bDescriptorType;   
  unsigned short bcdUSB;		    
  unsigned char bDeviceClass;      
  unsigned char bDeviceSubClass;
  unsigned char bDeviceProtocol;
  unsigned char bMaxPacketSize0;   
  unsigned short idVendor;		   
  unsigned short idProduct;
  unsigned short bcdDevice;		    
  unsigned char iManufacturer;	    
  unsigned char iProduct;		    
  unsigned char iSerialNumber;	    
  unsigned char bNumConfigurations;    
 } sDevDesc, *pDevDesc;
 
 typedef struct
 {	
  unsigned char bLength;                 
  unsigned char bType;					  
  unsigned short wLength;                 
  unsigned char bNumIntf;				  
  unsigned char bCV;             		  
  unsigned char bIndex;          		  
  unsigned char bAttr;                   
  unsigned char bMaxPower;				  
 } sCfgDesc, *pCfgDesc;
 
 
 typedef struct
 {	unsigned char bLength;	    
  unsigned char bType;		      
  unsigned char iNum;		      
  unsigned char iAltString;	  
  unsigned char bEndPoints;	  
  unsigned char iClass;		  
  unsigned char iSub; 		      
  unsigned char iProto;		  
  unsigned char iIndex; 		  
 } sIntfDesc, *pIntfDesc;
 
 
 typedef struct
 {	unsigned char bLength;
  unsigned char bType;		      
  unsigned char bEPAdd;		  
  unsigned char bAttr;		      
  unsigned short wPayLoad;        
  unsigned char bInterval;	      
 } sEPDesc, *pEPDesc;
 



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 void usbBufRead(unsigned char *s, unsigned char c);
 void usbBufWrite(unsigned char *s, unsigned char c);
 void usbReset(void);
 unsigned char usbXfer(unsigned char endPoint);
 unsigned char ep0Xfer(void);
 unsigned char epBulkSend(unsigned char *pBuffer,unsigned int len);
 unsigned char epBulkRcv(unsigned char *pBuffer,unsigned int len);
 unsigned char setAddress(unsigned char addr);
 unsigned char setConfiguration(void);
 unsigned char setDesc(void);
 unsigned char enumUsbDev(unsigned char usbaddr);
 void usbInit(void);
 void checkKeyLED(void);
 
#line 2 "usb.c" /0
 
 
 unsigned char PassToggleCheckSoftware();
 
 extern XXGFLAGS bdata bXXGFlags;	 
 XXGPKG  usbstack;					 
 
 
 extern UINT8 xdata DBUF[512];
 
 USBDEV  data  uDev;
 
 
 void usbBufRead(unsigned char *s, unsigned char c)
 {
 unsigned char  i;
 unsigned char *addr; 	
 addr = s;	
 
 
 
 
 
 
 for(i=0;i<c;i++)
 {
 ACC = ((unsigned char volatile xdata *) 0)[0xF80E];	
 *addr = ACC;
 addr++;	  
 }
 
 }
 
 void usbBufWrite(unsigned char *s, unsigned char c)
 {
 unsigned char *addr;  
 addr = s;
 if(((unsigned char volatile xdata *) 0)[0xF80D]&0x02)  
 return;
 else
 { 
 while(c)
 {
 ACC = *addr;
   ((unsigned char volatile xdata *) 0)[0xF80E] = ACC;
 addr++;
 c--;
 }
 }
 }
 
 
 
 
 void usbReset(void)
 {
 unsigned char temp;
 temp = ((unsigned char volatile xdata *) 0)[0xF800];
   ((unsigned char volatile xdata *) 0)[0xF800] = temp|0x04;  	 
 DelayMs(20);		
   ((unsigned char volatile xdata *) 0)[0xF800] = temp;
 DelayMs(20);  		             
   ((unsigned char volatile xdata *) 0)[0xF801] = 0xff;          
   ((unsigned char volatile xdata *) 0)[0xF802] = 0xff;
 }
 
 
 
 
 
 
 
 static unsigned char ConsecutiveNAKCount = 0;
 unsigned char usbXfer(unsigned char endPoint)
 {  
 unsigned char xferLen, cmd;
 unsigned char intr, result;
 unsigned char devTglSt;          
 
 bXXGFlags.DATA_STOP=0;
 bXXGFlags.TIMEOUT_ERR=0;
 
 
 
 if (usbstack.wLen >= usbstack.wPayload)  		 
 xferLen = usbstack.wPayload;				 
 else											 
 xferLen = usbstack.wLen;
 
   ((unsigned char volatile xdata *) 0)[0xF806] = xferLen;  					 
 
 
 if (usbstack.pid==0x90)
 {
 
   ((unsigned char volatile xdata *) 0)[0xF80B] = 0x10;                       
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x01;  					 
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x00;
 cmd = 0x04;
 }	                    
 
 else if(usbstack.pid==0x10)				 
 {
 if(xferLen)									
 {
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x03;
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x00;
   ((unsigned char volatile xdata *) 0)[0xF80B] = 0x01;                       
 usbBufWrite(usbstack.buffer,xferLen); 	 
 if (xferLen < 64)
 {
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x03;                     
   ((unsigned char volatile xdata *) 0)[0xF80C] = 0x00;
 }
 }
 
 if (bXXGFlags.bToggle)                       
 cmd = 0xc2;