C51 COMPILER V7.02a   FW                                                                   06/02/2004 00:34:27 PAGE 1   


C51 COMPILER V7.02a, COMPILATION OF MODULE FW
OBJECT MODULE PLACED IN fw.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE fw.c BROWSE 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          //-----------------------------------------------------------------------------
  17          // Constants
  18          //-----------------------------------------------------------------------------
  19          #define DELAY_COUNT   0x9248*8L  // Delay for 8 sec at 24Mhz, 4 sec at 48
  20          #define _IFREQ  48000            // IFCLK constant for Synchronization Delay
  21          #define _CFREQ  48000            // CLKOUT constant for Synchronization Delay
  22          
  23          //-----------------------------------------------------------------------------
  24          // Random Macros
  25          //-----------------------------------------------------------------------------
  26          #define   min(a,b) (((a)<(b))?(a):(b))
  27          #define   max(a,b) (((a)>(b))?(a):(b))
  28          
  29          
  30          
  31            // Registers which require a synchronization delay, see section 15.14
  32            // FIFORESET        FIFOPINPOLAR
  33            // INPKTEND         OUTPKTEND
  34            // EPxBCH:L         REVCTL
  35            // GPIFTCB3         GPIFTCB2
  36            // GPIFTCB1         GPIFTCB0
  37            // EPxFIFOPFH:L     EPxAUTOINLENH:L
  38            // EPxFIFOCFG       EPxGPIFFLGSEL
  39            // PINFLAGSxx       EPxFIFOIRQ
  40            // EPxFIFOIE        GPIFIRQ
  41            // GPIFIE           GPIFADRH:L
  42            // UDMACRCH:L       EPxGPIFTRIG
  43            // GPIFTRIG
  44            
  45            // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  46            //      ...these have been replaced by GPIFTC[B3:B0] registers
  47            
  48          #include "fx2sdly.h"             // Define _IFREQ and _CFREQ above this #include
  49          
  50          //-----------------------------------------------------------------------------
  51          // Global Variables
  52          //-----------------------------------------------------------------------------
  53          volatile BOOL   GotSUD;
  54          BOOL      Rwuen;
  55          BOOL      Selfpwr;
C51 COMPILER V7.02a   FW                                                                   06/02/2004 00:34:27 PAGE 2   

  56          volatile BOOL   Sleep;                  // Sleep mode enable flag
  57          volatile BYTE num=0;
  58          BYTE xdata Digit[] = { 0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x98, 0x88, 0x83, 0xc6, 0xa1,
             - 0x86, 0x8e,0x09 };
  59          
  60          WORD   pDeviceDscr;   // Pointer to Device Descriptor; Descriptors may be moved
  61          WORD   pDeviceQualDscr;
  62          WORD   pHighSpeedConfigDscr;
  63          WORD   pFullSpeedConfigDscr;   
  64          WORD   pConfigDscr;
  65          WORD   pOtherConfigDscr;   
  66          WORD   pStringDscr;   
  67          
  68          //-----------------------------------------------------------------------------
  69          // Prototypes
  70          //-----------------------------------------------------------------------------
  71          void SetupCommand(void);
  72          void TD_Init(void);
  73          void TD_Poll(void);
  74          BOOL TD_Suspend(void);
  75          BOOL TD_Resume(void);
  76          
  77          BOOL DR_GetDescriptor(void);
  78          BOOL DR_SetConfiguration(void);
  79          BOOL DR_GetConfiguration(void);
  80          BOOL DR_SetInterface(void);
  81          BOOL DR_GetInterface(void);
  82          BOOL DR_GetStatus(void);
  83          BOOL DR_ClearFeature(void);
  84          BOOL DR_SetFeature(void);
  85          BOOL DR_VendorCmnd(void);
  86          
  87          // this table is used by the epcs macro 
  88          const char code  EPCS_Offset_Lookup_Table[] =
  89          {
  90             0,    // EP1OUT
  91             1,    // EP1IN
  92             2,    // EP2OUT
  93             2,    // EP2IN
  94             3,    // EP4OUT
  95             3,    // EP4IN
  96             4,    // EP6OUT
  97             4,    // EP6IN
  98             5,    // EP8OUT
  99             5,    // EP8IN
 100          };
 101          
 102          // macro for generating the address of an endpoint's control and status register (EPnCS)
 103          #define epcs(EP) (EPCS_Offset_Lookup_Table[(EP & 0x7E) | (EP > 128)] + 0xE6A1)
 104          
 105          //-----------------------------------------------------------------------------
 106          // Code
 107          //-----------------------------------------------------------------------------
 108          
 109          // Task dispatcher
 110          void main(void)
 111          {
 112   1         DWORD   i;
 113   1         WORD   offset;
 114   1         DWORD   DevDescrLen;
 115   1         DWORD   j=0;
 116   1         WORD   IntDescrAddr;
C51 COMPILER V7.02a   FW                                                                   06/02/2004 00:34:27 PAGE 3   

 117   1         WORD   ExtDescrAddr;
 118   1      
 119   1         // Initialize Global States
 120   1         Sleep = FALSE;               // Disable sleep mode
 121   1         Rwuen = FALSE;               // Disable remote wakeup
 122   1         Selfpwr = FALSE;            // Disable self powered
 123   1         GotSUD = FALSE;               // Clear "Got setup data" flag
 124   1      
 125   1         // Initialize user device
 126   1         //TD_Init();
 127   1              TD_InitSlaveFIFO();
*** WARNING C206 IN LINE 127 OF FW.C: 'TD_InitSlaveFIFO': missing function-prototype
 128   1      
 129   1         // The following section of code is used to relocate the descriptor table. 
 130   1         // Since the SUDPTRH and SUDPTRL are assigned the address of the descriptor 
 131   1         // table, the descriptor table must be located in on-part memory.
 132   1         // The 4K demo tools locate all code sections in external memory.
 133   1         // The descriptor table is relocated by the frameworks ONLY if it is found 
 134   1         // to be located in external memory.
 135   1         pDeviceDscr = (WORD)&DeviceDscr;
 136   1         pDeviceQualDscr = (WORD)&DeviceQualDscr;
 137   1         pHighSpeedConfigDscr = (WORD)&HighSpeedConfigDscr;
 138   1         pFullSpeedConfigDscr = (WORD)&FullSpeedConfigDscr;
 139   1         pStringDscr = (WORD)&StringDscr;
 140   1      
 141   1         if ((WORD)&DeviceDscr & 0xe000)
 142   1         {
 143   2            IntDescrAddr = INTERNAL_DSCR_ADDR;
 144   2            ExtDescrAddr = (WORD)&DeviceDscr;
 145   2            DevDescrLen = (WORD)&UserDscr - (WORD)&DeviceDscr + 2;
 146   2            for (i = 0; i < DevDescrLen; i++)
 147   2               *((BYTE xdata *)IntDescrAddr+i) = 0xCD;
 148   2            for (i = 0; i < DevDescrLen; i++)
 149   2               *((BYTE xdata *)IntDescrAddr+i) = *((BYTE xdata *)ExtDescrAddr+i);
 150   2            pDeviceDscr = IntDescrAddr;
 151   2            offset = (WORD)&DeviceDscr - INTERNAL_DSCR_ADDR;
 152   2            pDeviceQualDscr -= offset;
 153   2            pConfigDscr -= offset;
 154   2            pOtherConfigDscr -= offset;
 155   2            pHighSpeedConfigDscr -= offset;
 156   2            pFullSpeedConfigDscr -= offset;
 157   2            pStringDscr -= offset;
 158   2         }
 159   1      
 160   1         EZUSB_IRQ_ENABLE();            // Enable USB interrupt (INT2)
 161   1         EZUSB_ENABLE_RSMIRQ();            // Wake-up interrupt
 162   1      
 163   1         INTSETUP |= (bmAV2EN | bmAV4EN);     // Enable INT 2 & 4 autovectoring
 164   1      
 165   1         USBIE |= bmSUDAV | bmSUTOK | bmSUSP | bmURES | bmHSGRANT ;   // Enable selected interrupts
 166   1         EA = 1;                  // Enable 8051 interrupts
 167   1         EPIE |= bmBIT4;
 168   1      
 169   1      #ifndef NO_RENUM
 170   1         // Renumerate if necessary.  Do this by checking the renum bit.  If it
 171   1         // is already set, there is no need to renumerate.  The renum bit will
 172   1         // already be set if this firmware was loaded from an eeprom.
 173   1         if(!(USBCS & bmRENUM))
 174   1         {
 175   2             EZUSB_Discon(TRUE);   // renumerate
 176   2         }
 177   1      #endif
C51 COMPILER V7.02a   FW                                                                   06/02/2004 00:34:27 PAGE 4   

 178   1      
 179   1         // unconditionally re-connect.  If we loaded from eeprom we are
 180   1         // disconnected and need to connect.  If we just renumerated this
 181   1         // is not necessary but doesn't hurt anything
 182   1         USBCS &=~bmDISCON;
 183   1      
 184   1         CKCON = (CKCON&(~bmSTRETCH)) | FW_STRETCH_VALUE; // Set stretch to 0 (after renumeration)
 185   1      
 186   1         // clear the Sleep flag.
 187   1         Sleep = FALSE;