base.c

基于s3c2440的U盘读写程序

#include   <stdarg.h>
#include   "base.h"
//#include   "posapi.h"
#define  CONCS_DATA32
static volatile unsigned char ConCs1,ConCs2;
typedef void IRQ_HANDLER(void);
typedef IRQ_HANDLER *pIRQ_HANDLER;
IRQ_HANDLER *FIQ_HANDLER, *IRQ_HANDLER_TABLE[32];
void AbortHandler(void);
//extern void s_LcdInit1(void);
//extern void DelayMs(unsigned short ms);
void __gccmain()
{
}


void s_WriteConCs1(unsigned char mode)
{
    #ifdef CONCS_DATA32
    *(volatile int*)(CONCS1) =(int)(mode<<24);
    #else	
    *(volatile char *)CONCS1=mode;
    #endif
}


void s_WriteConCs2(unsigned char addr,unsigned char mode)
{
    if(mode)	ConCs2|=addr;
    else        ConCs2&=~addr;
    #ifdef CONCS_DATA32
    *(volatile int*)(CONCS2) =(int)(ConCs2<<24);
    #else	
    *(volatile char*)CONCS2=ConCs2;
    #endif
}


void s_SetIRQHandler(int IntNo, void (*Handler)(void))
{
    IRQ_HANDLER_TABLE[IntNo] = Handler; 
}


void s_SetFIQHandler(void (*Handler)(void))
{
    FIQ_HANDLER = Handler; 
}


void s_IRQHandlerInit(void)
{
    int i;
    for(i=0;i<32;i++)
    s_SetIRQHandler(i, AbortHandler);
    ConCs1=0xff;
    ConCs2=0xff;
}


void s_UartInit(void)
{
	rULCON0 = 0x03;
    rUCON0 = 0x05;
    rUFCON0 = 0x00;
    rUMCON0 = 0x00;
    rUBRDIV0 = 55;
}

int s_UartRecv(unsigned char *ch, int TimeOut)
{
    unsigned long cnt;
    cnt=TimeOut*7619;
    while(!(rUFSTAT0 & 0x000F))
    {
        if(cnt-- ==0) return -1;
    }
    *ch = rURXH0;
    return 0;
}


void s_UartSend( unsigned char ch)
{
    rUTXH0 = ch;	
    while(!(rUTRSTAT0 & 0x04));
}


unsigned char s_getkey(void)
{
    while(!(rUFSTAT0 & 0x000F));
    return rURXH0;
}


void s_UartPrint(char *fmt,...)
{
    int i;	
    va_list marker;
    char buff[1024];
    //s_UartInit();	
    buff[0]=0;
    va_start( marker, fmt);
    vsprintf(buff,fmt,marker);
    va_end( marker );
    for(i=0;buff[i];i++) s_UartSend(buff[i]);
}


void s_Beep(void)
{
    /*
      	rGPBCON &= 0xfffffffc;
       	rGPBCON |= 0x00000002;//SET TOUT0 FUNCTION;
       	rGPBUP  &= 0xfffffffe;   	
       	rTCNTB0 = 470;    
       	rTCMPB0 = 470/2;  
       	rTCON |= 0x0f;
       	rTCON &= ~(1<<1);    		   	
       	DelayMs(100);	   	
        rTCON &= ~(0x0b);   	
        rGPBCON &= 0xfffffffc;
        rGPBCON |= 0x00000001;//SET GPB0=0;
        rGPBUP  &= 0xfffffffe;
        rGPBDAT &= 0xfffffffe; 
        */    
}


void UndefinedHandler(void)
{
    int i;
    s_Beep();
    //s_LcdInit1();
    //ScrPrint(0,6,1,"Undefined fail!");
    //for(i=0;i<10;i++){
    s_UartPrint("Undefined failed!");
    //}
    for(;;);
}


void PrefetchAbortHandler(void)
{
    int i;
    s_Beep();
    //s_LcdInit1();
    // ScrPrint(0,6,1,"Prefetch fail!");
    //for(i=0;i<10;i++){
    s_UartPrint("Prefetch failed!");
    //}
    for(;;);
}


void DataAbortHandler(void)
{
    int i;
    s_Beep();
    //s_LcdInit1();
    // ScrPrint(0,6,1,"DataAbort fail!");
    //for(i=0;i<10;i++){
    s_UartPrint("DataAbort failed!");
    //}
    for(;;);
}


void AbortHandler(void)
{
    int i;
    s_Beep();
    //s_LcdInit1();
    //ScrPrint(0,6,1,"  Abort failed!");
    //for(i=0;i<10;i++){
    s_UartPrint("Abort failed!");
    //}
    for(;;);
}