fw.lst

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C51 COMPILER V6.10  FW                                                                     06/04/2008 20:29:43 PAGE 1   


C51 COMPILER V6.10, COMPILATION OF MODULE FW
OBJECT MODULE PLACED IN .\fw.OBJ
COMPILER INVOKED BY: C:\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          // indent 3.  NO TABS!
   7          //
   8          // $Revision: 18 $
   9          // $Date: 12/04/01 5:33p $
  10          //
  11          //   Copyright (c) 1997 AnchorChips, Inc. All rights reserved
  12          //-----------------------------------------------------------------------------
  13          #include "fx2.h"
  14          #include "fx2regs.h"
  15          //-----------------------------------------------------------------------------
  16          // Constants
  17          //-----------------------------------------------------------------------------
  18          #define DELAY_COUNT   0x9248*8L  // Delay for 8 sec at 24Mhz, 4 sec at 48
  19          #define _IFREQ  48000            // IFCLK constant for Synchronization Delay
  20          #define _CFREQ  48000            // CLKOUT constant for Synchronization Delay
  21          
  22          //-----------------------------------------------------------------------------
  23          // Random Macros
  24          //-----------------------------------------------------------------------------
  25          #define   min(a,b) (((a)<(b))?(a):(b))
  26          #define   max(a,b) (((a)>(b))?(a):(b))
  27          
  28            // Registers which require a synchronization delay, see section 15.14
  29            // FIFORESET        FIFOPINPOLAR
  30            // INPKTEND         OUTPKTEND
  31            // EPxBCH:L         REVCTL
  32            // GPIFTCB3         GPIFTCB2
  33            // GPIFTCB1         GPIFTCB0
  34            // EPxFIFOPFH:L     EPxAUTOINLENH:L
  35            // EPxFIFOCFG       EPxGPIFFLGSEL
  36            // PINFLAGSxx       EPxFIFOIRQ
  37            // EPxFIFOIE        GPIFIRQ
  38            // GPIFIE           GPIFADRH:L
  39            // UDMACRCH:L       EPxGPIFTRIG
  40            // GPIFTRIG
  41            
  42            // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  43            //      ...these have been replaced by GPIFTC[B3:B0] registers
  44            
  45          #include "fx2sdly.h"             // Define _IFREQ and _CFREQ above this #include
  46          
  47          //-----------------------------------------------------------------------------
  48          // Global Variables
  49          //-----------------------------------------------------------------------------
  50          volatile BOOL   GotSUD;
  51          BOOL      Rwuen;
  52          BOOL      Selfpwr;
  53          volatile BOOL   Sleep;                  // Sleep mode enable flag
  54          
  55          WORD   pDeviceDscr;   // Pointer to Device Descriptor; Descriptors may be moved
C51 COMPILER V6.10  FW                                                                     06/04/2008 20:29:43 PAGE 2   

  56          WORD   pDeviceQualDscr;
  57          WORD   pHighSpeedConfigDscr;
  58          WORD   pFullSpeedConfigDscr;   
  59          WORD   pConfigDscr;
  60          WORD   pOtherConfigDscr;   
  61          WORD   pStringDscr;   
  62          
  63          //-----------------------------------------------------------------------------
  64          // Prototypes
  65          //-----------------------------------------------------------------------------
  66          void SetupCommand(void);
  67          void TD_Init(void);
  68          void TD_Poll(void);
  69          BOOL TD_Suspend(void);
  70          BOOL TD_Resume(void);
  71          
  72          BOOL DR_GetDescriptor(void);
  73          BOOL DR_SetConfiguration(void);
  74          BOOL DR_GetConfiguration(void);
  75          BOOL DR_SetInterface(void);
  76          BOOL DR_GetInterface(void);
  77          BOOL DR_GetStatus(void);
  78          BOOL DR_ClearFeature(void);
  79          BOOL DR_SetFeature(void);
  80          BOOL DR_VendorCmnd(void);
  81          
  82          // this table is used by the epcs macro 
  83          const char code  EPCS_Offset_Lookup_Table[] =
  84          {
  85             0,    // EP1OUT
  86             1,    // EP1IN
  87             2,    // EP2OUT
  88             2,    // EP2IN
  89             3,    // EP4OUT
  90             3,    // EP4IN
  91             4,    // EP6OUT
  92             4,    // EP6IN
  93             5,    // EP8OUT
  94             5,    // EP8IN
  95          };
  96          
  97          // macro for generating the address of an endpoint's control and status register (EPnCS)
  98          #define epcs(EP) (EPCS_Offset_Lookup_Table[(EP & 0x7E) | (EP > 128)] + 0xE6A1)
  99          
 100          //-----------------------------------------------------------------------------
 101          // Code
 102          //-----------------------------------------------------------------------------
 103          
 104          // Task dispatcher
 105          void main(void)
 106          {
 107   1         DWORD   i;
 108   1         WORD   offset;
 109   1         DWORD   DevDescrLen;
 110   1         DWORD   j=0;
 111   1         WORD   IntDescrAddr;
 112   1         WORD   ExtDescrAddr;
 113   1      
 114   1         // Initialize Global States
 115   1         Sleep = FALSE;               // Disable sleep mode
 116   1         Rwuen = FALSE;               // Disable remote wakeup
 117   1         Selfpwr = FALSE;            // Disable self powered
C51 COMPILER V6.10  FW                                                                     06/04/2008 20:29:43 PAGE 3   

 118   1         GotSUD = FALSE;               // Clear "Got setup data" flag
 119   1      
 120   1         // Initialize user device
 121   1         TD_Init();
 122   1      
 123   1         // The following section of code is used to relocate the descriptor table. 
 124   1         // Since the SUDPTRH and SUDPTRL are assigned the address of the descriptor 
 125   1         // table, the descriptor table must be located in on-part memory.
 126   1         // The 4K demo tools locate all code sections in external memory.
 127   1         // The descriptor table is relocated by the frameworks ONLY if it is found 
 128   1         // to be located in external memory.
 129   1         pDeviceDscr = (WORD)&DeviceDscr;
 130   1         pDeviceQualDscr = (WORD)&DeviceQualDscr;
 131   1         pHighSpeedConfigDscr = (WORD)&HighSpeedConfigDscr;
 132   1         pFullSpeedConfigDscr = (WORD)&FullSpeedConfigDscr;
 133   1         pStringDscr = (WORD)&StringDscr;
 134   1      
 135   1         if ((WORD)&DeviceDscr & 0xe000)
 136   1         {
 137   2            IntDescrAddr = INTERNAL_DSCR_ADDR;
 138   2            ExtDescrAddr = (WORD)&DeviceDscr;
 139   2            DevDescrLen = (WORD)&UserDscr - (WORD)&DeviceDscr + 2;
 140   2            for (i = 0; i < DevDescrLen; i++)
 141   2               *((BYTE xdata *)IntDescrAddr+i) = 0xCD;
 142   2            for (i = 0; i < DevDescrLen; i++)
 143   2               *((BYTE xdata *)IntDescrAddr+i) = *((BYTE xdata *)ExtDescrAddr+i);
 144   2            pDeviceDscr = IntDescrAddr;
 145   2            offset = (WORD)&DeviceDscr - INTERNAL_DSCR_ADDR;
 146   2            pDeviceQualDscr -= offset;
 147   2            pConfigDscr -= offset;
 148   2            pOtherConfigDscr -= offset;
 149   2            pHighSpeedConfigDscr -= offset;
 150   2            pFullSpeedConfigDscr -= offset;
 151   2            pStringDscr -= offset;
 152   2         }
 153   1      
 154   1         EZUSB_IRQ_ENABLE();            // Enable USB interrupt (INT2)
 155   1         EZUSB_ENABLE_RSMIRQ();            // Wake-up interrupt
 156   1      
 157   1         INTSETUP |= (bmAV2EN | bmAV4EN);     // Enable INT 2 & 4 autovectoring
 158   1      
 159   1         USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT;   // Enable selected interrupts
 160   1         EA = 1;                  // Enable 8051 interrupts
 161   1      
 162   1      #ifndef NO_RENUM
 163   1         // Renumerate if necessary.  Do this by checking the renum bit.  If it
 164   1         // is already set, there is no need to renumerate.  The renum bit will
 165   1         // already be set if this firmware was loaded from an eeprom.
 166   1         if(!(USBCS & bmRENUM))
 167   1         {
 168   2             EZUSB_Discon(TRUE);   // renumerate
 169   2         }
 170   1      #endif
 171   1      
 172   1         // unconditionally re-connect.  If we loaded from eeprom we are
 173   1         // disconnected and need to connect.  If we just renumerated this
 174   1         // is not necessary but doesn't hurt anything
 175   1         USBCS &=~bmDISCON;
 176   1      
 177   1         CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)
 178   1      
 179   1         // clear the Sleep flag.
C51 COMPILER V6.10  FW                                                                     06/04/2008 20:29:43 PAGE 4   

 180   1         Sleep = FALSE;
 181   1