my_sl811.c.bak

USB for TMS320C5402

}

//*****************************************************************************************
// Set Device Configuration : 
//*****************************************************************************************
unsigned char Set_Configuration(void)
{
	usbstack.setup.bmRequest=0;
	usbstack.setup.bRequest=SET_CONFIG;
	
	usbstack.setup.wIndex=0;
	usbstack.setup.wLength=0;
	usbstack.buffer=NULL;
	return ep0Xfer();

}

//*****************************************************************************************
// Get Device Descriptor : Device, Configuration, String
//*****************************************************************************************
unsigned char GetDesc(void)
{ 
	
	usbstack.setup.bmRequest=0x80;
	usbstack.setup.bRequest=GET_DESCRIPTOR;
	usbstack.setup.wValue=WordSwap(usbstack.setup.wValue);	
	usbstack.wPayload=uDev.wPayLoad[0];
	
	return ep0Xfer();
}

//*****************************************************************************************
// USB Device Enumeration Process
// Support 1 confguration and interface #0 and alternate setting #0 only
// Support up to 1 control endpoint + 4 data endpoint only
//*****************************************************************************************
unsigned char EnumUsbDev(BYTE usbaddr)
{  
	unsigned char i;											// always reset USB transfer address 
	unsigned char uAddr = 0;							// for enumeration to Address #0
	unsigned char epLen;
		
	//------------------------------------------------
	// Reset only Slave device attached directly
	//------------------------------------------------
	uDev.wPayLoad[0] = 64;	// default 64-byte payload of Endpoint 0, address #0
	if(usbaddr == 1)		// bus reset for the device attached to SL811HS only
		USBReset();		// that will always have the USB address = 0x01 (for a hub)
    	
    	DelayMs(25);
	
	//------------------------------------------------
	// Get USB Device Descriptors on EP0 & Addr 0
	// with default 64-byte payload
	//------------------------------------------------
		
	usbstack.usbaddr=uAddr;
	usbstack.setup.wValue=DEVICE;
	usbstack.setup.wIndex=0;
	usbstack.setup.wLength=18;
	usbstack.buffer=DBUF;
	
	if (!GetDesc())			// and determine the wPayload size
		return FALSE;								// get correct wPayload of Endpoint 0
	uDev.wPayLoad[0]=DBUF[7];	// on current non-zero USB address
	//------------------------------------------------
	// Set Slave USB Device Address
	//------------------------------------------------
	if (!SetAddress(usbaddr)) 						// set to specific USB address
		return FALSE;								//
	uAddr = usbaddr;								// transfer using this new address

	//------------------------------------------------
	// Get USB Device Descriptors on EP0 & Addr X
	//------------------------------------------------
	

	usbstack.usbaddr=uAddr;	
	usbstack.setup.wLength=DBUF[0];	
	usbstack.setup.wValue=DEVICE;
	usbstack.setup.wIndex=0;	
	usbstack.buffer=DBUF;	
	if (!GetDesc()) 	
		return FALSE;								// For this current device:
	uDev.iMfg  = DBUF[14];	
	uDev.iPdt  = DBUF[15];

	//------------------------------------------------
	// Get Slave USB Configuration Descriptors
	//------------------------------------------------
	
	usbstack.usbaddr=uAddr;
	usbstack.setup.wValue=CONFIGURATION;
	usbstack.setup.wIndex=0;
	usbstack.setup.wLength=64;
	usbstack.buffer=DBUF;	
	if (!GetDesc()) 		
		return FALSE;	

	uDev.bClass 	= DBUF[9+5];	// update to class type
	uDev.bNumOfEPs = (DBUF[9+4] <= MAX_EP) ? DBUF[9+4] : MAX_EP;
	if(uDev.bClass==8) //mass storage device
		bFlags.bits.bMassDevice=TRUE;
	//------------------------------------------------
	// Set configuration (except for HUB device)
	//------------------------------------------------
	usbstack.usbaddr=uAddr;
	usbstack.setup.wValue=DEVICE;
					// enumerating a FS/LS non-hub device
		if (!Set_Configuration())		// connected directly to SL811HS
				return FALSE;

	//------------------------------------------------
	// For each slave endpoints, get its attributes
	// Excluding endpoint0, only data endpoints
	//------------------------------------------------
	
	epLen = 0;
	for (i=1; i<=uDev.bNumOfEPs; i++)				// For each data endpoint
	{
		uDev.bEPAddr[i]		= DBUF[9 + 9 + epLen+2];	// Ep address and direction				
		uDev.bAttr[i]		= DBUF[9 + 9 + epLen+3];	// Attribute of Endpoint			
		uDev.wPayLoad[i] 	= LSwapINT16(DBUF[9 + 9 + epLen+4],DBUF[9 + 9 + epLen+5]);	// Payload of Endpoint
		uDev.bInterval[i] 	= DBUF[9 + 9 + epLen+6];	// Polling interval
	    uDev.bData1[i] = 0;			            // init data toggle
		epLen += 7;
		//////////////////////////////
		if(uDev.bAttr[i]==0x2)     //bulk transfer
		{
		    if(uDev.bEPAddr[i]&0x80)
		    	usbstack.epbulkin=uDev.bEPAddr[i];
		    else
		    	usbstack.epbulkout=uDev.bEPAddr[i];
		}
		//////////////////////////////
	}
	
	return TRUE;
}

///////////////////////////////////////////////////////////////////////////////////////////
void SL811_Init(void)
{	
	bFlags.bits.SLAVE_ONLINE = FALSE;
	bFlags.bits.SLAVE_FOUND = FALSE;
	bFlags.bits.SLAVE_REMOVED=FALSE;
	
	bFlags.bits.SLAVE_ENUMERATED = FALSE;
	bFlags.bits.SLAVE_IS_ATTACHED = FALSE;
	///////////////////////////////////////////////////////
	//允许硬件产生SOF（Start of Frame）
	SL811Write(CtrlReg,0x04);
	DelayMs(100);
	SL811Write(CtrlReg,0x01);
	
	//设置SOF，1 ms中断
	SL811Write(cDATASet,0xe0);
	
	//设置为主机工作模式
	SL811Write(cSOFcnt,0xae);
	SL811Write(EP0Status,0x50);
	
	//地址设为0
	SL811Write(EP0Counter,0);
	
	//允许数据发送
	SL811Write(EP0Control,0x01);
	SL811Write(IntEna,0x20);      		// USB-A, Insert/Remove, USB_Resume.
	//清中断
	SL811Write(IntStatus,INT_CLEAR);	// Clear Interrupt enable status
}


//*****************************************************************************************
// Byte Read from SL811H
// a = register address
// return = data in register
//*****************************************************************************************
unsigned char SL811Read(unsigned char a)
{  
	//unsigned char nVal;
	//unsigned char xdata *exAddress;
	//exAddress = SL811_ADDR_PORT;
	////SL811_CS=1;
	//*exAddress=a;
	//exAddress=SL811_DATA_PORT;
	//nVal = *exAddress;
	////SL811_CS=0;
	//return nVal;
	SL811H_ADDR = a;			
	return (SL811H_DATA&0xFF);
}

void SL811Write(unsigned char a, unsigned char d)
{  
	//unsigned char xdata *exAddress;
	//exAddress = SL811_ADDR_PORT;
	////SL811_CS=1;
	//*exAddress=a;
	//exAddress=SL811_DATA_PORT;
	//*exAddress = d;
	////SL811_CS=0;
	SL811H_ADDR = a;	
	SL811H_DATA = d&0xFF;
}

void SL811BufRead(BYTE addr, BYTE *s, BYTE c)//(unsigned char addr, unsigned char *s, unsigned char c)
{	
	//unsigned char i;
	//unsigned char xdata *exAddress;
	//exAddress=SL811_ADDR_PORT;
	////SL811_CS=1;
	//*exAddress = addr;
	//exAddress=SL811_DATA_PORT;
	//for(i=0;i<c;i++)
	//	{
	//	*s++ = *exAddress;
	//	}
	////SL811_CS=0;
	char tmp_char;
	
	SL811H_ADDR = addr;	
   	while (c--) 
   	   {
   		tmp_char = SL811H_DATA;
		*s++ = (BYTE)tmp_char&0xFF;
       }
}

void SL811BufWrite(BYTE addr, BYTE *s, BYTE c)//(unsigned char addr, unsigned char *s, unsigned char c)
{	
	//unsigned char xdata *exAddress;
	//exAddress = SL811_ADDR_PORT;
	
	////SL811_CS=1;
	//*exAddress = addr;
	//exAddress=SL811_DATA_PORT;
	//while (c--) 
	//	{
	//	*exAddress = *s++;
	//	}
	////SL811_CS=0;
		SL811H_ADDR = addr;	
   	    while (c--) 
		  SL811H_DATA = *s++;
	
}


unsigned short WordSwap(unsigned short input)
{
	return(((input&0x00FF)<<8)|((input&0xFF00)>>8));
	//return(((input&0x00FF)<<16)|((input&0x00FF0000)>>16));
}

void DelayMs(unsigned char nFactor)
{
	unsigned char i;
	unsigned int j;

	for(i=0; i<nFactor; i++)
		{
		for(j=0;j<1000;j++)
		         j=j;
		}
}

unsigned int LSwapINT16(unsigned short dData1,unsigned short dData2)
{
    unsigned int xdata dData;
    dData = ((dData2<<8)&0xff00)|(dData1&0x00ff);
	return dData;
}

unsigned long LSwapINT32(unsigned long dData1,unsigned long dData2,unsigned long dData3,unsigned long dData4)
{
    unsigned long xdata dData;
    dData = ((dData4<<24)&0xff000000)|((dData3<<16)&0xff0000)|((dData2<<8)&0xff00)|(dData1&0xff);
	return dData;
}




//*****************************************************************************************
// Byte Read from SL811H
// a = register address
// return = data in register
//*****************************************************************************************
//BYTE SL811Read(BYTE a)
//{  
//	SL811H_ADDR = a;			
//	return (SL811H_DATA&0xFF);
//}

//*****************************************************************************************
// Byte Write to SL811H
// a = register address
// d = data to be written to this register address
//*****************************************************************************************
//void SL811Write(BYTE a, BYTE d)
//{  
//	SL811H_ADDR = a;	
//	SL811H_DATA = d&0xFF;
//}

//*****************************************************************************************
// Buffer Read from SL811H
// addr = buffer start address
// s    = return buffer address where data are to be save/read
// c	= buffer data length
//*****************************************************************************************
//void SL811BufRead(BYTE addr, BYTE *s, BYTE c)
//{	
//	char tmp_char;
//	
//	SL811H_ADDR = addr;	
//   	while (c--) 
//   	{
//   		tmp_char = SL811H_DATA;
//		*s++ = (BYTE)tmp_char&0xFF;
//	}
//}

//*****************************************************************************************
// Buffer Write  to SL811H
// addr = buffer start address
// s    = buffer address where data are to be written
// c	= buffer data length
//*****************************************************************************************
//void SL811BufWrite(BYTE addr, BYTE *s, BYTE c)
//{	
//	SL811H_ADDR = addr;	
//   	while (c--) 
//		SL811H_DATA = *s++;
//}

//*****************************************************************************************
// Swap high and low byte 
//*****************************************************************************************
//WORD WordSwap(WORD input)
//{
//	return(((input&0x00FF)<<16)|((input&0x00FF0000)>>16));
//}

//*****************************************************************************************
// UsbReset during enumeration of device attached directly to SL811HS
//*****************************************************************************************
//void USBReset()
//{
//	BYTE tmp;
//    tmp =  SL811Read(CtrlReg);   
// 	SL811Write(CtrlReg,tmp|0x08);
//	EZUSB_Delay(25);			
//    SL811Write(CtrlReg,tmp);    
//}