control.c

arm7s3c44b0x0里ps2口和lcd口驱动编程实例

/****************************************************************
 *		ARMSYS7 S3C44B0X developer's notes						*  
 ****************************************************************

 1. 2005.5.17::改变功能函数内容
 
 ***************************************************************/

#include "\inc\define.h"
#include "\inc\drives.h"

void ShowBootInfo(void)
{
	puts("\n---------------------------------------------------------------");
	puts("\nOEM name   :     LiYuTai Elec.Co.,Ltd.	     		     	    ");
	puts("\nWebsite    :     www.hzlitai.com.cn                             ");
	puts("\nEmail      :     [e-mail]                          ");
	puts("\nFunction   :     ARMSYS's BIOS for A0744B0P V1.4                    ");
	puts("\nUART config:     115.2kbps,8Bit,NP,UART0                        ");
	puts("\n---------------------------------------------------------------\n");
}

//------------------------PORTS------------------------------//
void PortInit(void)
{
	//CAUTION:Follow the configuration order for setting the ports. 
	// 1) setting value 
	// 2) setting control register 
	// 3) configure pull-up resistor.
	// 4) 16bit data bus configuration
	
	// PORT A GROUP
	/*  BIT 9	8	7	6	5	4	3	2	1	0	*/
	/*  A24	  A23	A22	A21	A20	A19	A18	A17	A16	A0	*/	      
	/*  1		1	1	1	1	1	1	1	1	1	*/
	rPCONA = 0x3ff;	

	// PORT B GROUP
	/* BIT 10   9    8       7      6        5     4     3     2     1     0    */
	/*     /CS5 /CS4 /CS3    /CS2   /CS1     nWBE3 nWBE2 /SRAS /SCAS SCLS  SCKE	*/
	/*     EXT  8019  USB	IDE		NV_Flash NC    NC    Sdram Sdram Sdram Sdram*/
	/*     1,   1,     1,     1,     1,       0,    0,    1,    1,    1,    1    */
	//rPDATB = 0x7ff;
	rPDATB = 0x7cf;
	    
	//PORT C GROUP
	//BUSWIDTH=16													*/
	/*  PC15	14		13		12		11		10		9		8	*/
	/*	I		 O		RXD1	TXD1	I		I		O		O	*/
	/*	PS2DAT	DCLK	Uart1	Uart1	Dout	BUS		Din		CS	*/
	/*   00		01		11		11		00		00		01		01	*/

	/*  PC7		6		5		4		3		2		1		0	*/
	/*   o		o		o		o		o		o		o		o	*/
	/*  VD4		VD5		VD6		VD7		NFALE 	NFCLE 	NFCE 	NFRB*/
	/*   11		11		11		11		01		01		01		00	*/
	rPDATC = 0xffff;		//All IO is high 
	rPCONC = 0x1f05ff54;	
	rPUPC  = 0x3000;		//pull-up regiseter should be enabled

	//PORT D GROUP
	/*  PORT D GROUP(I/O OR LCD)										*/
	/*  BIT	7		6		5		4		3		2		1		0	*/
	/*      VF		VM		VLINE	VCLK	VD3		VD2		VD1		VD0	*/
	/*	   10		10		10		10		10		10		10		10	*/
	rPDATD= 0xff;
	rPCOND= 0xaaaa;	
	rPUPD = 0x00;
	//These pins must be set only after CPU's internal LCD controller is enable
	
	//PORT E GROUP 
	/*  Bit 8		7		6		5		4		3		2		1		0		*/
	/*		ENDLAN	LED4	LED5	LED6	LED7	BEEP	RXD0	TXD0	display	*/ 
	/*      10		01		01		01		01		01		10		10		01		*/
	rPDATE	= 0x1ff;
	rPCONE	= 0x25569;	//  8->CODECLK
	rPUPE	= 0x6;		//

	
	//PORT F GROUP
	/*  Bit8		7		6		5		 4		3		2		1		0		*/   
	/*  IISCLK	IISDI	IISDO	IISLRCK		nXDREQ0	nXDACK0	nWAIT	IICSDA	IICSCL	*/
	/*	100		100		100		100			11		11		10		10		10		*/
	rPDATF = 0x0;
	rPCONF = 0x2493ea;	//0,1->IICSCL IICSDA,  5~8->IIS PORT
	rPUPF  = 0x000;		//pull-up regiseter should be enabled


	//PORT G GROUP
	/*  BIT7		6		5		4		3		2		1		0	 */
	/*	INT7		INT6	INT5	INT4	INT3	INT2	INT1	INT0	*/
	/*    S1		S2		S3		S4		8019	EXT_PS2	IDE		USB	*/
	/*    00      	00      00      00      11      11      11      11       */
	rPCONG = 0x00ff; 	//EXINT0~3 enabled
	rPUPG  = 0x00;		//pull-up regiseter should be enabled
	
	rSPUCR = 0x7;  //D15-D0 pull-up disable
	//rSPUCR = 0x6;  //D15-D0 pull-up enable

	/*所有的外部硬件中断为低电平触发*/
	//rEXTINT = 0x0;
	rEXTINT=0x0|(1<<14);	//均为低电平触发,Exint3设置为上升沿触发
	//rEXTINT = 0x42;				//所有的外部硬件中断为低电平触发, extint0 为下降沿，extint1为上升沿	
	//rEXTINT = (4<<16)|(4<<8)|(4<<4);	//EINT1上升沿,EINT2上升沿,EINT4上升沿中断
	//rINTCON = 5;				// non vector mode, irq enable
	//rINTMOD = 0;				//all are irq mode
}

void Beep(U32 freq, U32 ms)
{
	if (freq==0)
		rPDATE=rPDATE|0x8;
	else
		rPDATE=rPDATE&0x1f7;
	Delay(ms);
	rPDATE=rPDATE|0x8;
}

#define	LED4_ON()	(rPDATE &= 0x7f)
#define	LED5_ON()	(rPDATE &= 0xbf)
#define	LED6_ON()	(rPDATE &= 0xdf)
#define	LED7_ON()	(rPDATE &= 0xef)
#define	LED4_OFF()	(rPDATE |= ~0x7f)
#define	LED5_OFF()	(rPDATE |= ~0xbf)
#define	LED6_OFF()	(rPDATE |= ~0xdf)
#define	LED7_OFF()	(rPDATE |= ~0xef)

void LedSet(U32 LedStatus)
{
	if(LedStatus&1)
		LED7_ON();
	else
		LED7_OFF();
	
	if(LedStatus&2)
		LED6_ON();
	else
		LED6_OFF();
		
	if(LedStatus&4)
		LED5_ON();
	else
		LED5_OFF();
		
	if(LedStatus&8)
		LED4_ON();
	else
		LED4_OFF();
}

void LedDisp(void)
{
	LedSet(0x08);		
	Delay(50);
	LedSet(0x04);		
	Delay(50);
	LedSet(0x02);		
	Delay(50);
	LedSet(0x01);		
	Delay(50);
	LedSet(0x02);		
	Delay(50);
	LedSet(0x04);		
	Delay(50);
	LedSet(0x08);		
	Delay(50);
	LedSet(0x00);		
}

void MemCfgInit(void)
{
	/*定义非Cache区*/
	//rNCACHBE0=((Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);
	rNCACHBE0 = ((unsigned int)(Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);
	rNCACHBE1 = (0xf000U<<16)|(0xe000);
//#ifdef A07S44B0P_BOARD			//
	//rBWSCON &= ~0xf000;			//8bits for RTL8019 in A07S44B0P BOARD
//#endif
}

void BoardInitStart(void)
{
	
	
	
}

void BoardInitEnd(void)
{
}

void BoardPrepareRun(void)
{
}

void CacheDisable(void)
{
	rSYSCFG = SYSCFG_0KB;
}

void CacheEnable(void)
{
	rSYSCFG = SYSCFG_8KB;
}

void CacheFlush(void)
{
	int i, saveSyscfg;
    
    saveSyscfg = rSYSCFG;

    rSYSCFG = SYSCFG_0KB;
    for(i = 0x10004000; i<0x10004800; i+=16)
		*((int *)i) = 0x0;
    rSYSCFG = saveSyscfg;
}

U16 GetKeyStatus(void)
{
	return (rPDATG>>4);
}