bulkloop.c

游戏板与电脑的通信

// USB儅僂僗 for EZUSB-FX2 by 徏尨戱栫

#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;

extern code WORD hidDscr;
extern code WORD ReportDscrEnd;
extern code WORD ReportDscr;
WORD	pReportDscr;
WORD	pReportDscrEnd;
WORD	pHIDDscr;

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) ;

    EP1OUTCFG = 0xA0;
    EP1INCFG = 0xB0;            // <----僀儞僞儔僾僩揮憲
    SYNCDELAY;                  // see TRM section 15.14

    Rwuen = TRUE;               // Enable remote-wakeup
}


void TD_Poll(void)              // Called repeatedly while the device is idle
{
    #define JOYUP		(1<<0)
    #define JOYDOWN		(1<<1)
    #define JOYLEFT		(1<<2)
    #define JOYRIGHT	(1<<3)
    #define JOYA		(1<<4)
    #define JOYB		(1<<5)

	#define INPACKETSIZE 3
	#define CURSOR_SPEED 5

	static BYTE swbakup;
	BYTE sw;
	char x1,y1;

	if(!(EP1INCS & bmEPBUSY))
	{

		sw = 0;
		if((IOA & JOYA)==0) sw |= 1; // A儃僞儞
		if((IOA & JOYB)==0) sw |= 2; // B儃僞儞

		if((IOA & JOYRIGHT)==0){
			x1 = CURSOR_SPEED;       // x+
		}else{
			if((IOA & JOYLEFT)==0){
				x1 = -CURSOR_SPEED;  // x-
			}else{
				x1 = 0;  //
			}
		}
		if((IOA & JOYDOWN)==0){
			y1 = CURSOR_SPEED;       // y+
		}else{
			if((IOA & JOYUP)==0){
				y1 = -CURSOR_SPEED;  // y-
			}else{
				y1 = 0;  // 
			}
		}

		if((x1==0)&&(y1==0)&&(swbakup==sw))	return;

		swbakup = sw;
		EP1INBUF[0] = sw;
		EP1INBUF[1] = x1;
		EP1INBUF[2] = y1;

		EP1INBC = INPACKETSIZE;
	}
}

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)
{
	BYTE HIDlength,i,min;

	pHIDDscr = (WORD)&hidDscr;
	pReportDscr = (WORD)&ReportDscr;
	pReportDscrEnd = (WORD)&ReportDscrEnd;

	switch (SETUPDAT[3])
	{
	case GD_HID: //HID Descriptor
		switch (SETUPDAT[4])
		{
		case 0:
			SUDPTRH = MSB(pHIDDscr);
			SUDPTRL = LSB(pHIDDscr);
			break;
		default:
			EZUSB_STALL_EP0();
		}
		return (FALSE);
		break;
	case GD_REPORT: //Report Descriptor
		switch (SETUPDAT[4])
		{
		case 0:
			HIDlength = pReportDscrEnd - pReportDscr;

			while (HIDlength)
			{
				if(HIDlength > 64) min=64; else min=HIDlength;

				for(i=0; i<min; i++)
					EP0BUF[i] = *((BYTE xdata *)pReportDscr+i);


				//set length and arm Endpoint
                EP0BCH = 0;
                EP0BCL = min;
				HIDlength -= min;

				// Wait for it to go out (Rev C and above)
				while(EP0CS & 0x04)
				;
			}
			break;
		default:
			EZUSB_STALL_EP0();
		}
		return (FALSE);
		break;
	default:
		break;
	}

   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);
}

BOOL DR_VendorCmnd(void)
{
  BYTE tmp;
  
  switch (SETUPDAT[1])
  {
     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
{
}