uda1341.c

在s3c44b0下利用SD卡进行WAV文件（FAT16格式）播放的源程序

/****************************************************************
 *		  ARMSYS S3C44B0X  UDA1341  TEST						*  
 ****************************************************************
 
  1.2005.5.14:ZXJ:  UDA1341 TEST
 
 ***************************************************************/

#include <stdlib.h> 
#include "..\target\option.h"
#include "..\target\44b.h"
#include "..\target\44blib.h"
#include "..\target\def.h"
#include "..\iistest\uda1341.h"

void _WrL3Addr(U8 data); 
void _WrL3Data(U8 data,int halt);
void __irq BDMA0_Done(void);

#define L3M (0x40)
#define L3D (0x200) 
#define L3C (0x80)
#define  RAM_ADDRESS1 0xc200000	//存放音乐的起始地址
#define  RAM_ADDRESS2 0xc300000
unsigned long int RAM_ADDRESS;
unsigned char *Buf,*_temp;
volatile unsigned int size=0;
unsigned long int i,ccnt,ccnt1;
unsigned long int ccnt2[1000],aa1=0,aa2=0;

void Init1341(void)
{
	/****** Port Initialize ******/
    rPCONA = 0x1ff;	//PA9(out):L3D
    rPCONG |= 0x5000;	//PG6:L3M, PG7:L3C
    rPUPG  |= 0xc0;	//disable(pull-up)

    rPDATG = L3M|L3C;	//L3M=H(start condition)
    			//L3C=H(start condition)
    			
	/*****L3 Interface*****/
    _WrL3Addr(0x14+2); //status (000101xx+10)
#ifdef FS441KHZ
    _WrL3Data(0x60,0); //0,1,10,000,0 reset,256fs,no DCfilter,iis
#else
	_WrL3Data(0x40,0); //0,1,00,000,0 reset,512fs,no DCfilter,iis 
	//_WrL3Data(0x42,0); //0,1,00,001,0 reset,512fs,no DCfilter,LJF16
#endif

    _WrL3Addr(0x14+2); //status (000101xx+10)
#ifdef FS441KHZ
	_WrL3Data(0x20,0); //0,0,10,000,0 no reset,256fs,no DCfilter,iis
	//_WrL3Data(0x22,0); //0,0,10,001,0 no reset,256fs,no DCfilter,LJF16
#else
    _WrL3Data(0x00,0); //0,0,00,000,0 no reset,512fs,no DCfilter,iis
    //_WrL3Data(0x02,0); //0,0,00,001,0 no reset,512fs,no DCfilter,LJF16
#endif
    
    _WrL3Addr(0x14+2); //status (000101xx+10)
    _WrL3Data(0x83,0);
    //1,0,0,0,0,0,11 OGS=0,IGS=0,ADC_NI,DAC_NI,sngl speed,AonDon
}

#define TESTSIZE 100000

void Test1341(void)
{
	unsigned int save_A,save_F,save_E,save_G,save_PF,save_PE,save_PG;

   	//ChangePllValue(0x69,0x8,0x1);	//MCLK=45.1584MHz <-- 5.6448MHz*8	MCLK=(M+8)*8MHz/(P+2)*2 s
    //Uart_Init(45200000,115200);			
    //Uart_Printf("\n[UDA1341 test for Play PCM Music]\n");
    //Uart_Printf("\n[现在播放地址处的WAV文件.]\n");
    
    save_A=rPCONA;//L3DATA
    save_F=rPCONF;//IIS port
    save_E=rPCONE;//CODEC clk
    save_G=rPCONG;//L3CLK,L3MOD
    save_PF=rPUPF;
    save_PE=rPUPE;
    save_PG=rPUPG;

#if (BUSWIDTH==32)
    Uart_Printf("IIS test should be configured 16bit data bus\n");
    return;
#else //BUSWIDTH=16
    rPCONF |=0x249000;	//IIs port PF5,6,7,8
    rPUPF |= 0x1e0;
#endif

    rPCONE=(rPCONE&0xffff)+(2<<16); //PE:CODECLK
    pISR_BDMA0=(unsigned)BDMA0_Done;
   

//    pISR_URXD0=(unsigned)RxInt;
    Buf=(unsigned char *)RAM_ADDRESS;
    rNCACHBE0= ((int)Buf>>12) + ( (((int)Buf>>12) +0x200)<<16 );//non-cachable 2MB
    Uart_Printf("\nrNCACHBE0=0x%x\n",rNCACHBE0);
    _temp=Buf;

    rINTMSK=~(BIT_GLOBAL|BIT_BDMA0);
/*第0x2c~0x2f字节为? 地址*/
    size=*(Buf+0x28) | *(Buf+0x29)<<8 | *(Buf+0x2a)<<16 | *(Buf+0x2b)<<24;
    size=(size>>1)<<1;
    Uart_Printf("sample size=0x%x\n",size/2);

    Uart_Printf("\n[]Now play 0x0c200000 the wave file...\n");

///////////////////////////////////////////////////////////////////////////////////
    Init1341();

    /****** BDMA0 Initialize ******/
    rBDISRC0=(1<<30)+(1<<28)+(int)(Buf+0x30);	//Half word,inc,Buf/*从buf+30开始*
    rBDIDES0=(1<<30)+(3<<28)+((int)IISFIF);	//M2IO,fix,IISFIF
    rBDICNT0=(1<<30)+(1<<26)+(3<<22)+(1<<21)+(0<<20)+size;
    rBDICNT0 |= (1<<20);//enable
    rBDCON0 = 0x0<<2;
      
    /****** IIS Initialize ******/
    rIISCON=0x22;	//Tx DMA enable,Rx idle,prescaler enable
    rIISMOD=0x89;	//Master,Tx,L-ch=low,iis,16bit ch.,codeclk=256fs,lrck=32fs
    rIISPSR=0x33;	//Prescaler_A/B enable, value=3
    rIISFCON=0xa00;	//Tx/Rx DMA,Tx/Rx FIFO --> start piling....

    Uart_Printf("Push any key to exit!!!\n");
    /****** IIS Tx Start ******/
    rIISCON |=0x1;
    
    //while(1);
    
    /*
	Buf=(unsigned char *)RAM_ADDRESS1;
    rBDISRC0=(1<<30)+(1<<28)+(int)(Buf+0x30);
    aa1 = rBDISRC0;
    
    Buf=(unsigned char *)RAM_ADDRESS2;
    rBDISRC0=(1<<30)+(1<<28)+(int)(Buf+0x30);
    aa2 = rBDISRC0;

	while(1)
	{
    	if( (rBDCCNT0 & 0x0fffff) == 2000 ) 
		{
			if(rBDISRC0 == aa1)
			{
    			rBDISRC0 = aa2;
    		}
    		else rBDISRC0 = aa1;
    	}
    }
    
    */
    
    
    while(!Uart_GetKey());

    /****** IIS Tx Stop ******/
    Uart_Printf("Exit Playing.\n");

    rIISCON=0x0;    //IIS stop
    rBDICNT0=0x0;   //BDMA stop
    //for down
    //free(Buf);
    Cache_Flush();
    rNCACHBE0=0x0;
    size=0;

    rPCONA=save_A;
    rPCONF=save_F;
    rPCONE=save_E;
    rPCONG=save_G;
    rPUPF=save_PF;
    rPUPE=save_PE;
    rPUPG=save_PG;

    rINTMSK=BIT_GLOBAL;
    ChangePllValue(0x38,0x2,0x1);//Fin=8MHz, Fout=64MHz
    Uart_Init(0,115200);

}


void _WrL3Addr(U8 data)
{	
    U32 vPdata = 0x0;	//L3D=L	
    U32 vPdatg = 0x0;	//L3M=L(in address mode)/L3C=L
    S32 i,j;

    rPDATG = vPdatg;	//L3M=L
    rPDATG |= L3C;	//L3C=H

    for(j=0;j<4;j++);		//tsu(L3) > 190ns

    //PA9:L3D PG6:L3M PG7:L3C
    for(i=0;i<8;i++)		
    {
	if(data&0x1)//if data bit is 'H'
	{
	    rPDATG = vPdatg;	//L3C=L
	    rPDATA = L3D;	//L3D=H		    
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	    rPDATG = L3C;	//L3C=H
	    rPDATA = L3D;	//L3D=H
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	}
	else		//if data bit is 'L'
	{
	    rPDATG=vPdatg;	//L3C=L
	    rPDATA=vPdata;	//L3D=L
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	    rPDATG=L3C;		//L3C=H
	    rPDATA=vPdata;	//L3D=L
	    for(j=0;j<4;j++);	//tcy(L3) > 500ns
	}
	data >>=1;
    }
    rPDATG=L3C|L3M;	//L3M=H,L3C=H
}


void _WrL3Data(U8 data,int halt)
{
    //U32 vPdata = 0x0;   //L3D=L
    U32 vPdatg = 0x0;	//L3M/L3C=L
    S32 i,j;
    if(halt)
    {
        rPDATG=L3C;	    //L3C=H(while tstp, L3 interface halt condition)
        for(j=0;j<4;j++);   //tstp(L3) > 190ns
    }
    rPDATG=L3C|L3M;	    //L3M=H(in data transfer mode)	
    for(j=0;j<4;j++);	    //tsu(L3)D > 190ns

    //PA9:L3MODE PG6:L3DATA PG7:L3CLOCK
    for(i=0;i<8;i++)
    {
        if(data&0x1)	//if data bit is 'H'
        {
	    rPDATG=L3M;		//L3C=L
            rPDATA=L3D;		//L3D=H
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
            rPDATG=L3C|L3M;	//L3C=H,L3D=H
	    rPDATA=L3D;
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
        }
        else		//if data bit is 'L'
        {
            rPDATG=L3M;		//L3C=L
	    rPDATA=vPdatg;	//L3D=L
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
            rPDATG=L3C|L3M;	//L3C=H
	    rPDATA=vPdatg;	//L3D=L
            for(j=0;j<4;j++);	//tcy(L3) > 500ns
        }
        data>>=1;
    }
    rPDATG=L3C|L3M;	//L3M=H,L3C=H
}

void __irq BDMA0_Done(void)
{
    rI_ISPC=BIT_BDMA0;	//clear pending bit
    WrUTXH0('.');
}