bulkloop.c

68013芯片块传送实例。可以在此基础上开发u盘

#pragma NOIV               // Do not generate interrupt vectors
//-----------------------------------------------------------------------------
//   File:      bulkloop.c
//   Contents:   Hooks required to implement USB peripheral function.
//
//   Copyright (c) 2000 Cypress Semiconductor All rights reserved
//-----------------------------------------------------------------------------
#include "fx2.h"
#include "fx2regs.h"
#include "fx2sdly.h"            // SYNCDELAY macro

extern BOOL GotSUD;             // Received setup data flag
extern BOOL Sleep;
extern BOOL Rwuen;
extern BOOL Selfpwr;

BYTE Configuration;             // Current configuration
BYTE AlternateSetting;          // Alternate settings

#define VR_NAKALL_ON    0xD0
#define VR_NAKALL_OFF   0xD1

//-----------------------------------------------------------------------------
// Task Dispatcher hooks
//   The following hooks are called by the task dispatcher.
//-----------------------------------------------------------------------------

void TD_Init(void)             // Called once at startup
{
   // set the CPU clock to 48MHz
   CPUCS = ((CPUCS & ~bmCLKSPD) | bmCLKSPD1) ;

   // set the slave FIFO interface to 48MHz
 IFCONFIG |= 0x40;

  // Registers which require a synchronization delay, see section 15.14
  // FIFORESET        FIFOPINPOLAR
  // INPKTEND         OUTPKTEND
  // EPxBCH:L         REVCTL
  // GPIFTCB3         GPIFTCB2
  // GPIFTCB1         GPIFTCB0
  // EPxFIFOPFH:L     EPxAUTOINLENH:L
  // EPxFIFOCFG       EPxGPIFFLGSEL
  // PINFLAGSxx       EPxFIFOIRQ
  // EPxFIFOIE        GPIFIRQ
  // GPIFIE           GPIFADRH:L
  // UDMACRCH:L       EPxGPIFTRIG
  // GPIFTRIG
  
  // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  //      ...these have been replaced by GPIFTC[B3:B0] registers

  // default: all endpoints have their VALID bit set
  // default: TYPE1 = 1 and TYPE0 = 0 --> BULK  
  // default: EP2 and EP4 DIR bits are 0 (OUT direction)
  // default: EP6 and EP8 DIR bits are 1 (IN direction)
  // default: EP2, EP4, EP6, and EP8 are double buffered
  //
  // we are just using the default values, yes this is not necessary...
 EP1OUTCFG = 0xA0;
//  SYNCDELAY;  
 EP1INCFG = 0xA3;
//  SYNCDELAY;                    // see TRM section 15.14
  //EP2CFG Endpoint 2 Configuration VALID DIR TYPE1 TYPE0 SIZE 0 BUF1 BUF0
  //端点2配置，OUT，双缓冲，BULK
  //0xA0 四缓冲
  //0xA2 双缓冲
  //0xA3 三缓冲 
  SYNCDELAY; 
  EP2CFG = 0xA2;     // EP2OUT, bulk, size 512, 2x buffered
  SYNCDELAY;                       
  EP4CFG = 0x00;     // EP4 not valid
  SYNCDELAY;              
  EP6CFG = 0x00;     // EP6 not valid  
  SYNCDELAY; 
  EP8CFG = 0x00;     // EP8 not valid
    
  
  //根据端点2缓冲区数目多少来确定装载端点计数器的次数
  SYNCDELAY; 
  EP2BCL = 0x80;               
  SYNCDELAY;                    
  EP2BCL = 0x80;
// SYNCDELAY;  
// EP2BCL = 0x80;               
// SYNCDELAY;                    
// EP2BCL = 0x80;
                   

  // enable dual autopointer feature
  AUTOPTRSETUP |= 0x01;

  Rwuen = TRUE;                 // Enable remote-wakeup
}


void TD_Poll(void)              // Called repeatedly while the device is idle
{

  WORD count;
  unsigned char temp;
  WORD i;
  if(!(EP2468STAT & bmEP2EMPTY))//ENDPOINT2非空，则开始接收数据
  { 
/*    
        APTR1H = MSB( &EP2FIFOBUF );
        APTR1L = LSB( &EP2FIFOBUF );

        count = (EP2BCH << 8) + EP2BCL;

        // 循环将端点2中的数据取出，因为单片机指令慢，会影响测试速度
         for( i = 0x0000; i < count; i++ )
        {
           // setup to transfer EP2OUT buffer to EP6IN buffer using AUTOPOINTER(s)
           temp = EXTAUTODAT1;
		   
        }
*/
        //根据端点2缓冲区数目多少来确定装载端点计数器的次数次数
        SYNCDELAY;
		EP2BCL = 0x80;          // re(arm) EP2OUT
		SYNCDELAY;
        EP2BCL = 0x80;          // re(arm) EP2OUT
//		SYNCDELAY;
//		EP2BCL = 0x80;          // re(arm) EP2OUT
//		SYNCDELAY;
//		EP2BCL = 0x80;          // re(arm) EP2OUT		
  }
}

BOOL TD_Suspend(void)          // Called before the device goes into suspend mode
{
   return(TRUE);
}

BOOL TD_Resume(void)          // Called after the device resumes
{
   return(TRUE);
}

//-----------------------------------------------------------------------------
// Device Request hooks
//   The following hooks are called by the end point 0 device request parser.
//-----------------------------------------------------------------------------

BOOL DR_GetDescriptor(void)
{
   return(TRUE);
}

BOOL DR_SetConfiguration(void)   // Called when a Set Configuration command is received
{
   Configuration = SETUPDAT[2];
   return(TRUE);            // Handled by user code
}

BOOL DR_GetConfiguration(void)   // Called when a Get Configuration command is received
{
   EP0BUF[0] = Configuration;
   EP0BCH = 0;
   EP0BCL = 1;
   return(TRUE);            // Handled by user code
}

BOOL DR_SetInterface(void)       // Called when a Set Interface command is received
{
   AlternateSetting = SETUPDAT[2];
   return(TRUE);            // Handled by user code
}

BOOL DR_GetInterface(void)       // Called when a Set Interface command is received
{
   EP0BUF[0] = AlternateSetting;
   EP0BCH = 0;
   EP0BCL = 1;
   return(TRUE);            // Handled by user code
}

BOOL DR_GetStatus(void)
{
   return(TRUE);
}

BOOL DR_ClearFeature(void)
{
   return(TRUE);
}

BOOL DR_SetFeature(void)
{
   return(TRUE);
}


#define VX_B2 0xB2 // get ENP2 CFG
#define VX_B3 0xB3 // get ENP4 CFG
#define VX_B4 0xB4 // get ENP6 CFG
#define VX_B5 0xB5 // get ENP8 CFG
#define VX_B6 0xB6 // get status 
//#define VX_B6 0xB6  //get ENP2 CFG


BOOL DR_VendorCmnd(void)
{
  BYTE tmp;
  
  switch (SETUPDAT[1])
  {
     case VX_B2:
	  EP0BUF[0] = VX_B2;
	  SYNCDELAY;
	  EP0BUF[1] = EP2CFG;
 	  SYNCDELAY;
  	  EP0BCH = 0;
	  EP0BCL = 2;
	  EP0CS |= bmHSNAK;
	  break;
	case VX_B3:
	  EP0BUF[0] = VX_B3;
	  SYNCDELAY;
	  EP0BUF[1] = EP4CFG;
 	  SYNCDELAY;
  	  EP0BCH = 0;
	  EP0BCL = 2;
	  EP0CS |= bmHSNAK;
	  break;
	case VX_B4:
	  EP0BUF[0] = VX_B4;
	  SYNCDELAY;
	  EP0BUF[1] = EP6CFG;
 	  SYNCDELAY;
  	  EP0BCH = 0;
	  EP0BCL = 2;
	  EP0CS |= bmHSNAK;
	  break;
   case VX_B5:
	  EP0BUF[0] = VX_B5;
	  SYNCDELAY;
	  EP0BUF[1] = EP8CFG;
 	  SYNCDELAY;
  	  EP0BCH = 0;
	  EP0BCL = 2;
	  EP0CS |= bmHSNAK;
	  break;
 

     case VR_NAKALL_ON:
        tmp = FIFORESET;
        tmp |= bmNAKALL;      
        SYNCDELAY;                    
        FIFORESET = tmp;
        break;
     case VR_NAKALL_OFF:
        tmp = FIFORESET;
        tmp &= ~bmNAKALL;      
        SYNCDELAY;                    
        FIFORESET = tmp;
        break;
     default:
        return(TRUE);
  }

  return(FALSE);
}

//-----------------------------------------------------------------------------
// USB Interrupt Handlers
//   The following functions are called by the USB interrupt jump table.
//-----------------------------------------------------------------------------

// Setup Data Available Interrupt Handler
void ISR_Sudav(void) interrupt 0
{
   GotSUD = TRUE;            // Set flag
   EZUSB_IRQ_CLEAR();
   USBIRQ = bmSUDAV;         // Clear SUDAV IRQ
}

// Setup Token Interrupt Handler
void ISR_Sutok(void) interrupt 0
{
   EZUSB_IRQ_CLEAR();
   USBIRQ = bmSUTOK;         // Clear SUTOK IRQ
}

void ISR_Sof(void) interrupt 0
{
   EZUSB_IRQ_CLEAR();
   USBIRQ = bmSOF;            // Clear SOF IRQ
}

void ISR_Ures(void) interrupt 0
{
   // whenever we get a USB reset, we should revert to full speed mode
   pConfigDscr = pFullSpeedConfigDscr;
   ((CONFIGDSCR xdata *) pConfigDscr)->type = CONFIG_DSCR;
   pOtherConfigDscr = pHighSpeedConfigDscr;
   ((CONFIGDSCR xdata *) pOtherConfigDscr)->type = OTHERSPEED_DSCR;

   EZUSB_IRQ_CLEAR();
   USBIRQ = bmURES;         // Clear URES IRQ
}

void ISR_Susp(void) interrupt 0
{
   Sleep = TRUE;
   EZUSB_IRQ_CLEAR();
   USBIRQ = bmSUSP;
}

void ISR_Highspeed(void) interrupt 0
{
   if (EZUSB_HIGHSPEED())
   {
      pConfigDscr = pHighSpeedConfigDscr;
      ((CONFIGDSCR xdata *) pConfigDscr)->type = CONFIG_DSCR;
      pOtherConfigDscr = pFullSpeedConfigDscr;
      ((CONFIGDSCR xdata *) pOtherConfigDscr)->type = OTHERSPEED_DSCR;
   }

   EZUSB_IRQ_CLEAR();
   USBIRQ = bmHSGRANT;
}
void ISR_Ep0ack(void) interrupt 0
{
}
void ISR_Stub(void) interrupt 0
{
}
void ISR_Ep0in(void) interrupt 0
{
}
void ISR_Ep0out(void) interrupt 0
{
}
void ISR_Ep1in(void) interrupt 0
{
}
void ISR_Ep1out(void) interrupt 0
{
}
void ISR_Ep2inout(void) interrupt 0
{
}
void ISR_Ep4inout(void) interrupt 0
{
}
void ISR_Ep6inout(void) interrupt 0
{
}
void ISR_Ep8inout(void) interrupt 0
{
}
void ISR_Ibn(void) interrupt 0
{
}
void ISR_Ep0pingnak(void) interrupt 0
{
}
void ISR_Ep1pingnak(void) interrupt 0
{
}
void ISR_Ep2pingnak(void) interrupt 0
{
}
void ISR_Ep4pingnak(void) interrupt 0
{
}
void ISR_Ep6pingnak(void) interrupt 0
{
}
void ISR_Ep8pingnak(void) interrupt 0
{
}
void ISR_Errorlimit(void) interrupt 0
{
}
void ISR_Ep2piderror(void) interrupt 0
{
}
void ISR_Ep4piderror(void) interrupt 0
{
}
void ISR_Ep6piderror(void) interrupt 0
{
}
void ISR_Ep8piderror(void) interrupt 0
{
}
void ISR_Ep2pflag(void) interrupt 0
{
}
void ISR_Ep4pflag(void) interrupt 0
{
}
void ISR_Ep6pflag(void) interrupt 0
{
}
void ISR_Ep8pflag(void) interrupt 0
{
}
void ISR_Ep2eflag(void) interrupt 0
{
}
void ISR_Ep4eflag(void) interrupt 0
{
}
void ISR_Ep6eflag(void) interrupt 0
{
}
void ISR_Ep8eflag(void) interrupt 0
{
}
void ISR_Ep2fflag(void) interrupt 0
{
}
void ISR_Ep4fflag(void) interrupt 0
{
}
void ISR_Ep6fflag(void) interrupt 0
{
}
void ISR_Ep8fflag(void) interrupt 0
{
}
void ISR_GpifComplete(void) interrupt 0
{
}
void ISR_GpifWaveform(void) interrupt 0
{
}