fw.lst

进行USB开发的外围设备固件程序

C51 COMPILER V6.10  FW                                                                     12/02/2005 23:12:52 PAGE 1   


C51 COMPILER V6.10, COMPILATION OF MODULE FW
OBJECT MODULE PLACED IN .\fw.OBJ
COMPILER INVOKED BY: e:\p\u\Keil\C51\BIN\C51.EXE .\fw.c DEBUG OBJECTEXTEND

stmt level    source

   1          //-----------------------------------------------------------------------------
   2          //   File:      fw.c
   3          //   Contents:   Firmware frameworks task dispatcher and device request parser
   4          //            source.
   5          //
   6          // $Revision: 1 $
   7          // $Date: 07/05/05 5:33p $
   8          //
   9          //   Copyright (c) 2005 Asia Science, Inc. All rights reserved
  10          //-----------------------------------------------------------------------------
  11          #include "fx2.h"
  12          #include "fx2regs.h"
  13          
  14          //-----------------------------------------------------------------------------
  15          // Constants
  16          //-----------------------------------------------------------------------------
  17          #define DELAY_COUNT   0x9248*8L  // Delay for 8 sec at 24Mhz, 4 sec at 48
  18          #define _IFREQ  48000            // IFCLK constant for Synchronization Delay
  19          #define _CFREQ  48000            // CLKOUT constant for Synchronization Delay
  20          
  21          //-----------------------------------------------------------------------------
  22          // Random Macros
  23          //-----------------------------------------------------------------------------
  24          #define   min(a,b) (((a)<(b))?(a):(b))
  25          #define   max(a,b) (((a)>(b))?(a):(b))
  26          
  27            // Registers which require a synchronization delay, see section 15.14
  28            // FIFORESET        FIFOPINPOLAR
  29            // INPKTEND         OUTPKTEND
  30            // EPxBCH:L         REVCTL
  31            // GPIFTCB3         GPIFTCB2
  32            // GPIFTCB1         GPIFTCB0
  33            // EPxFIFOPFH:L     EPxAUTOINLENH:L
  34            // EPxFIFOCFG       EPxGPIFFLGSEL
  35            // PINFLAGSxx       EPxFIFOIRQ
  36            // EPxFIFOIE        GPIFIRQ
  37            // GPIFIE           GPIFADRH:L
  38            // UDMACRCH:L       EPxGPIFTRIG
  39            // GPIFTRIG
  40            
  41            // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  42            //      ...these have been replaced by GPIFTC[B3:B0] registers
  43            
  44          #include "fx2sdly.h"             // Define _IFREQ and _CFREQ above this #include
  45          
  46          //-----------------------------------------------------------------------------
  47          // Global Variables
  48          //-----------------------------------------------------------------------------
  49          volatile BOOL   GotSUD;
  50          BOOL      Rwuen;
  51          BOOL      Selfpwr;
  52          volatile BOOL   Sleep;                  // Sleep mode enable flag
  53          
  54          WORD   pDeviceDscr;   // Pointer to Device Descriptor; Descriptors may be moved
  55          WORD   pDeviceQualDscr;
C51 COMPILER V6.10  FW                                                                     12/02/2005 23:12:52 PAGE 2   

  56          WORD   pHighSpeedConfigDscr;
  57          WORD   pFullSpeedConfigDscr;   
  58          WORD   pConfigDscr;
  59          WORD   pOtherConfigDscr;   
  60          WORD   pStringDscr;   
  61          
  62          //-----------------------------------------------------------------------------
  63          // Prototypes
  64          //-----------------------------------------------------------------------------
  65          void SetupCommand(void);
  66          void TD_Init(void);
  67          void TD_Poll(void);
  68          BOOL TD_Suspend(void);
  69          BOOL TD_Resume(void);
  70          
  71          BOOL DR_GetDescriptor(void);
  72          BOOL DR_SetConfiguration(void);
  73          BOOL DR_GetConfiguration(void);
  74          BOOL DR_SetInterface(void);
  75          BOOL DR_GetInterface(void);
  76          BOOL DR_GetStatus(void);
  77          BOOL DR_ClearFeature(void);
  78          BOOL DR_SetFeature(void);
  79          BOOL DR_VendorCmnd(void);
  80          
  81          void WRITE_DS1073();
  82          
  83          // this table is used by the epcs macro 
  84          const char code  EPCS_Offset_Lookup_Table[] =
  85          {
  86             0,    // EP1OUT
  87             1,    // EP1IN
  88             2,    // EP2OUT
  89             2,    // EP2IN
  90             3,    // EP4OUT
  91             3,    // EP4IN
  92             4,    // EP6OUT
  93             4,    // EP6IN
  94             5,    // EP8OUT
  95             5,    // EP8IN
  96          };
  97          
  98          // macro for generating the address of an endpoint's control and status register (EPnCS)
  99          #define epcs(EP) (EPCS_Offset_Lookup_Table[(EP & 0x7E) | (EP > 128)] + 0xE6A1)
 100          
 101          //-----------------------------------------------------------------------------
 102          // Code
 103          //-----------------------------------------------------------------------------
 104          
 105          // Task dispatcher
 106          void main(void)
 107          {
 108   1         DWORD   i;
 109   1         WORD   offset;
 110   1         DWORD   DevDescrLen;
 111   1         DWORD   j=0;
 112   1         WORD   IntDescrAddr;
 113   1         WORD   ExtDescrAddr;
 114   1      
 115   1         // Initialize Global States
 116   1         Sleep = FALSE;               // Disable sleep mode
 117   1         Rwuen = FALSE;               // Disable remote wakeup
C51 COMPILER V6.10  FW                                                                     12/02/2005 23:12:52 PAGE 3   

 118   1         Selfpwr = FALSE;            // Disable self powered
 119   1         GotSUD = FALSE;               // Clear "Got setup data" flag
 120   1      
 121   1         // Initialize user device
 122   1         TD_Init();
 123   1      
 124   1         	//CLKOUT output float
 125   1      	CPUCS &=0xfd;
 126   1      
 127   1      	//USB CONNECT, although not necessary
 128   1      	USBCS &= 0xf8;
 129   1      
 130   1      
 131   1      	//set PA0/INT0 pin serve as PORT function ,not INT function as OUTPUT
 132   1      	//PA1/INT1 the same
 133   1      	PORTACFG &= 0xfc;
 134   1      	
 135   1      	//set PA0,PA1,PA3 as output.
 136   1      	OEA = OEA|0x0b;
 137   1      
 138   1      	//Reset PLD
 139   1      	IOA &=0xf7;
 140   1      
 141   1      	//set PA7/FLAGD/SLCS serve as FLAGD
 142   1      	PORTACFG |= 0x80;
 143   1      
 144   1      	//set PA3/WU2EN serve as PA3
 145   1      	WAKEUPCS &= 0xfd;
 146   1      
 147   1      	//set FD[15:0]/PD:PB serve as FD[15:0],not portD and PortB
 148   1      	//and PA2/SLOE serve as SLOE, PA4/FIFOADD0 serve as FIFOADR0
 149   1      	//and PA5/FIFOADD1 serve as FIFOADD1
 150   1      	//and PA6/PKTEND serve as PKTEND 
 151   1      	//and PA7/FLAGD/SLCS serve as not only PA7
 152   1      	IFCONFIG |=0x03;
 153   1      
 154   1         // set the slave FIFO interface to 48MHz,default is 12MHZ
 155   1      //   IFCONFIG |= 0x40;
 156   1      	
 157   1         //set the slave FIFO as sync mode
 158   1         IFCONFIG &=0xf7;
 159   1      
 160   1         //Enable IFCLK output
 161   1         IFCONFIG |=0x20;
 162   1      
 163   1      	//INVert polarity
 164   1         IFCONFIG |=0x10;
 165   1      
 166   1         //set IFCLK as internal source
 167   1      	IFCONFIG |=0x80;