console.c

三星S3C44BOX+CH375读写U盘原理图和源程序

#include <stdarg.h>

#include "44b0x.h"
#include "datatype.h"
#include "console.h"
#define Non_Cache_Start	(0x2000000)
#define Non_Cache_End 	(0xc000000)
#define	EXT_OSC_CLK	10000000

unsigned int MCLK = 60000000;


void ChangePllValue(int mdiv, int pdiv, int sdiv)
{
	int i = 1;		
	
	rPLLCON = (mdiv<<12)|(pdiv<<4)|sdiv;
	
	while(sdiv--)
		i *= 2;	
	
	MCLK = (EXT_OSC_CLK*(mdiv+8))/((pdiv+2)*i);		
}


void Delay(U32 time)
{
	while(time--);
}
void Port_Init(void)
{
    //ADB V1.0 B/D Status
    //USB D12SUSPD 
    //    PC0
    //LED D0  D1  D2
    //	  PC1 PC2 PC3
    //KEY K0  K1  K2  K3
    //	  PG4 PG5 PG6 PG7

    //CAUTION:Follow the configuration order for setting the ports. 
    // 1) setting value 
    // 2) setting control register 
    // 3) configure pull-up resistor.  
	     
    //16bit data bus configuration  
    //PORT A GROUP
    //rPCONA[9:0]
    //|BIT9  |.......................................................|BIT0
    //|ADDR24|ADDR23|ADDR22|ADDR21|ADDR20|ADDR19|ADDR18|ADDR17|ADDR16|ADDR0		      
    //|     0|     1|	  1|     1|     1|     1|     1|	 1|     1|    1
    rPCONA=0x1ff;	

    //PORT B GROUP
    //rPCONB[10:0]
    //|BIT10|....................................................|BIT0
    //|nGCS5|nGCS4|nGCS3|nGCS2|nGCS1|nWBE3|nWBE2|nSRAS|nSCAS|SCLK|SCKE
    //|    1|    1|    1|	 1|    1|    1|    1|	 1|    1|   1|   1
    rPDATB=0x3ff;
    rPCONB=0x3ff;
    
    //PORT C GROUP
    //BUSWIDTH=16
    //PORT C GROUP
    //rPCONC[31:0]
    //|GPC15|.............................................GPC5GPC4...............|    GPC0
    //|BIT31|....................................................................|    BIT0
    //|nCTS0|nRTS0|RXD1|TXD1|nCTS1|nRTS1|nEL|nDISP|VD4|VD6|   |   |LED2|LED1|LED0|D12SUSPD
    //|   00|   00|  11|  11|   00|   00| 01|   01| 11| 11| 01| 01|  01|  01|  01|      01
    //rPUPC[15:0]
    //|    0|    0|   1|   1|    0|    0|  0|    0|  1|  1|  0|  0|   0|   0|   0|       0
    rPDATC=0xffff;	//All I/O Is High
    rPCONC=0x0f05f555;	
    rPUPC=0x30c0;	//PULL UP RESISTOR should be enabled to I/O

    //PORT D GROUP
    //rPCOND
    //| BIT15|.........................|BIT0 
    //|VFRAME|VM|VLINE|VCLK|VD3|VD2|VD1|VD0
    //|    10|10|   10|	 10| 10| 10| 10| 10  
    rPDATD=0xff;
	//These pins must be set only after CPU's internal LCD controller is enable
	
	rPCOND=0xaaaa;
    rPUPD=0xff;

    //PORT E GROUP
    //rPCONE
    //| BIT17 |..............................|BIT0
    //|CODECLK|PE7|PE6|BEEP|PE4|PE3|RXD0|TXD0| PE0
    //|     10| 00| 00|  01| 00| 00|  10|  10|  00  -zq
    //|rPUPE[7:0]
    //        |  0|  0|   0|  0|  0|   1|   1|   0
    rPDATE=0x1ff;  	//All I/O Is High
    rPCONE=0x20428;	//All NC is INPUT	
    rPUPE=0x06;	//PE8 do not have programmable pull-up resistor.  

    //PORT F GROUP
    //rPCONF[21:0]
    //| BIT21|....................................|  BIT0
    //|IISCLK|PF7|IISDO|IISLRCK|PF4|PF3|PF2|IICSDA|IICSCL
    //|   100|000|  100|    100| 00| 00| 00|    10|    10
    //rPUPF[8:0]
    //|     1|  0|    1|      1|  0|  0|  0|     1|     1
     rPDATF=0x1ff;	//All I/O Is High
    rPCONF=0x20900a;//All NC is INPUT
    rPUPF=0x163;

    //PORT G GROUP
    //rPCONG[15:0]
    //|BIT15|....................................|   BIT0
    //| KEY3|KEY2|KEY1|KEY0|EXINT3|EXINT2|NET_INT|USB_INT
    //|   11|  11|  11|  11|    11|    11|     11|     11
    rPDATG=0xff;
    rPCONG=0xffff;		
    rPUPG=0x0;		//should be enabled  
    
    rSPUCR=0x7; 	//D15-D0 pull-up disable
    
	rEXTINT=0x0;	//All EXTINT0-7 Low level interrupt
	rNCACHBE0=(((Non_Cache_End)>>12)<<16)|((Non_Cache_Start)>>12); 

}


void UartInit(int ch, int baud)
{
	U8 a;
	
	if(!ch)
	{
		rUFCON0 = 0x0;     
    	rUMCON0 = 0x0;     //禁止使用FIFO
    	rULCON0 = 0x3;     //正常无奇偶校验，一个停止位，8个数据位
    	rUCON0 = 0x45;    //TX RX 都用PULSE非LEVEL中断   
   
	    //rx=edge,tx=level,disable timeout int.,enable rx error int.,normal,interrupt or polling
	    //rUBRDIV0 = (int)(MCLK/16./baud+0.5)-1;
	    rUBRDIV0 = MCLK/(16*baud);
	    a = rURXH0;
	}
	else
	{
		rUFCON1 = 0x0;     //禁止使用FIFO
	    rUMCON1 = 0x0;     //禁止使用FIFO
    	rULCON1 = 0x3;     //正常无奇偶校验，一个停止位，8个数据位
	    rUCON1 = 0x45;       
	    //rx=edge,tx=level,disable timeout int.,enable rx error int.,normal,interrupt or polling	    
	    //baud *= 16;	    
	    //rUBRDIV1 = MCLK/baud+((MCLK%baud)>=(baud/2))?1:0;
	    rUBRDIV1 = MCLK/(baud*16);
	    a = rURXH1;
	}	
}

void UartSend(int ch, char data)
{
	if(!ch)
	{
		if(data=='\n')
		{
			while(!(rUTRSTAT0&0x2));			
										//改动延时时间1--10
			Delay(10);					//由于超级终端反应较慢，有一个微小延迟
			WrUTXH0('\r');
		}
		while(!(rUTRSTAT0&0x2));		//等待知道THR变空
										//改动延时时间1--10
		Delay(10);
		rUTXH0 = data;
   	}
	else
	{
		if(data=='\n')
		{
			while(!(rUTRSTAT1&0x2));
										//改动延时时间1--10
			Delay(10);					//由于超级终端反应较慢，有一个微小延迟
			rUTXH1 = '\r';
		}
		while(!(rUTRSTAT1&0x2));		//等待知道THR变空
										//改动延时时间1--10
		Delay(10);
		rUTXH1 = data;
    }	
}

int UartReceive(int ch)
{
	if(!ch)
    {	    
		while(!(rUTRSTAT0&0x1));		//等待直到接受到一个数据
		return rURXH0;
    }
    else
    {
		while(!(rUTRSTAT1&0x1));		//等待直到接受到一个数据
		return	rURXH1;
    }
}

int UartRxStat(int ch)
{
	if(!ch)    	    
		return (rUTRSTAT0&0x1);    
    else    
		return (rUTRSTAT1&0x1);		    
}

int UartGetch(int ch)
{
	 if(!ch)
    {	    
		if(rUTRSTAT0&0x1)		//如果收到字符就返回该字符
    	    return rURXH0;
		else
			return -1;			//如果没有收到字符就返回0
    }
    else
    {
		if(rUTRSTAT1&0x1)		//如果收到字符就返回该字符
		    return rURXH1;
		else
			return -1;			//如果没有收到字符就返回0
    }
}

int UartGetkey(int ch)
{
	return ch?rURXH1:rURXH0; 
}

void UartSendString(int ch, char *pt)
{
    while(*pt)
		UartSend(ch, *pt++);
}

/************************************************/
void console_init(int baud)
{
	UartInit(CONSOLE_UART, baud);
}

void putch(char data)
{
	UartSend(CONSOLE_UART, data);
}

void puts(char *str)
{
	while(*str)
		UartSend(CONSOLE_UART, *str++);
}

int getch()
{
	return UartReceive(CONSOLE_UART);
}

int getkey()
{
	return UartGetkey(CONSOLE_UART);
}

int kbhit()
{
	return UartRxStat(CONSOLE_UART);
}




typedef int *__va_list[1];

int vsprintf(char * /*s*/, const char * /*format*/, __va_list /*arg*/);

void printf(char *fmt, ...)
{
	va_list ap;
    char string[256];    

    va_start(ap, fmt);
    vsprintf(string, fmt, ap);
    UartSendString(CONSOLE_UART, string);
    va_end(ap);
}