503 lines
12 KiB
C
503 lines
12 KiB
C
void hal2_1ktone();
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void MakeTable(int *tab);
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void MakeTune(int *tunetab, int *sintab, int step, int nsamps);
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void PrintTune(int *tunetab,int nsamps);
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void PrintDescriptors(void);
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void SetupHAL2(void);
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void InitiateDMA(int);
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void WaitForOneDMA(int);
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#define PRINTFS
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/*
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#define CONSPUTC
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#define DUART_WRITE
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#define PROM_READ
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*/
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#include "sys/sbd.h"
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#include "sys/hal2.h"
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/*
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#include "sys/hpc3.h"
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*/
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#include "sys/IP22.h"
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#define STEP 1000 /* Generates a 1Khz tone */
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#define NSAMPS 96000 /* 2 seconds of tune */
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#define MIN(a,b) ( (a) < (b) ? (a) : (b) )
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#define MAX_DESCRIPTORS 1000
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/*#define SPIN while (*isrp & HAL2_ISR_TSTATUS);*/
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#define SPIN us_delay(10000)
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/*#define NOTYET 1*/
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int sintab[48000];
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int tunetab[NSAMPS*2]; /* the *2 is because it's stereo */
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int inbuf[NSAMPS*2];
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scdescr_t input_desc_list[MAX_DESCRIPTORS];
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scdescr_t desc_list[MAX_DESCRIPTORS];
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main()
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{
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volatile long *p6 = (volatile long *)PHYS_TO_K1(HPC3_PBUS_CFG_ADDR(6));
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volatile long *p5 = (volatile long *)PHYS_TO_K1(HPC3_PBUS_CFG_ADDR(5));
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volatile long *p4 = (volatile long *)PHYS_TO_K1(HPC3_PBUS_CFG_ADDR(4));
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*p6=0x141b;
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*p5=0x40e07;
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*p4=0x0e07;
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stuff();
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hal2_1ktone();
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}
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void
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hal2_1ktone()
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{
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printf("HAL2 1k tone test entered\n");
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hal2_configure_pbus_pio();
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printf("pbus pio configured\n");
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hal2_configure_pbus_dma();
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printf("pbus dma configured\n");
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MakeTable(sintab);
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printf("sin table configured\n");
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MakeTune(tunetab,sintab,STEP,NSAMPS);
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printf("tune table configured\n");
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PrintTune(tunetab,26);
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printf("build dma descriptors\n");
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printf("inbuf(begin) = %x, inbuf(end) = %x\n", inbuf, &inbuf[NSAMPS*2]);
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printf("outbuf(begin) = %x, outbuf(end) = %x\n", tunetab, &tunetab[NSAMPS*2]);
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BuildDescriptors(input_desc_list, inbuf, NSAMPS*2*sizeof(int));
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BuildDescriptors(desc_list, tunetab, NSAMPS*2*sizeof(int));
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/*
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PrintDescriptors();
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*/
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printf("Set Up HAL2\n");
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SetupHAL2();
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printf("Initiate DMA\n");
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InitiateDMA(0);
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WaitForOutput();
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InitiateDMA(1);
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printf("Wait for DMA\n");
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WaitForOneDMA(1);
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printf("HAL2 1k tone test done\n");
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}
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/* Make a 48000 element table containing one cycle of 32767*sin(x) */
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void
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MakeTable(int *tab)
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{
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unsigned int theta,t2,t3,t4,t5,t6,t7;
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int *p1,*p2;
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int i;
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/* Compute the first quadrant */
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p1=tab; p2=p1+12000;
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for(i=0;i<=6000;i++) {
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theta=i*51472; /* theta=i*.25*pi*65536 */
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theta/=6000; /* theta=i*.25*pi*65536/6000 */
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t2=(theta*theta)>>16;
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t3=(t2*theta)>>16;
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t4=(t2*t2)>>16;
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t5=(t2*t3)>>16;
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t6=(t3*t3)>>16;
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t7=(t3*t4)>>16;
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/*Use a taylor series for sin x to compute values in the first octant*/
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*p1++=(5040*theta-840*t3+42*t5-t7)/5040;
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/*Use a taylor series for cos x to compute values in the second octant*/
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*p2--= 65535-(t2>>1) + ( 30*t4 -t6)/720;
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}
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/* Scale and limit */
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p1=tab; p2=p1+12000;
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while(p1<=p2) {
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t7 = (*p1>>1);
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if(t7>=32767)
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t7=32767;
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*p1=t7;
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p1++;
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}
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/* Reflect the first quadrant into the second quadrant */
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p1=tab; p2=p1+24000;
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while(p1<=p2) {
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*p2 = *p1;
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p1++;
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p2--;
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}
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/* Reflect the first two quadrants int the last two quadrants */
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p1=tab+1; p2=tab+47999;
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while(p1<=p2) {
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*p2 = -(*p1);
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p1++;
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p2--;
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}
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}
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#define NORMAL_TUNE
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#if defined NORMAL_TUNE
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void
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MakeTune(int *tunetab, int *sintab, int step, int nsamps)
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{
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int i,j,s;
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j=0;
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for(i=0;i<nsamps;i++) {
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*tunetab=sintab[j]<<8;
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tunetab++;
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*tunetab=sintab[j]<<8;
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tunetab++;
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j+=step;
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if(j>=48000)j-=48000;
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}
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}
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#elif defined ALTERNATING
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void
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MakeTune(int *tunetab, int *sintab, int step, int nsamps)
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{
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int i,j,s;
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j=0;
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for(i=0;i<nsamps;i++) {
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*tunetab=0xffff;
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tunetab++;
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*tunetab=0xffff;
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tunetab++;
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j+=step;
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if(j>=48000)j-=48000;
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}
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}
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#else
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void
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MakeTune(int *tunetab, int *sintab, int step, int nsamps)
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{
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int i,j,k,s,t;
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j=0;
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k=0;
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for(i=0;i<nsamps;i++) {
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s=(sintab[j]>>8)&0xff;
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t=(sintab[k]>>8)&0xff;
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#ifdef LATER
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*tunetab=(s<<24)+(s<<16)+(t<<8)+t;
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tunetab++;
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*tunetab=(s<<24)+(s<<16)+(t<<8)+t;
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tunetab++;
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#endif
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*tunetab=(s<<16)+s;
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tunetab++;
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*tunetab=(t<<16)+t;
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tunetab++;
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j+=step;
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if(j>=48000)j-=48000;
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k+=step+step;
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if(k>=48000)k-=48000;
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}
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}
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#endif
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void
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PrintTune(int *tunetab,int nsamps)
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{
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int i;
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for(i=0;i<nsamps;i+=2) {
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printf("%d %d %d %d %d %d\n",
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i,tunetab[0],tunetab[1],
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1+i,tunetab[2],tunetab[3]);
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tunetab+=4;
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}
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}
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void
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BuildDescriptors(scdescr_t *list,void *startaddr,int nbytes)
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{
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int nremaining, bytes_till_page_boundary, bytes_this_descriptor;
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char *p;
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scdescr_t *desc;
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desc=list;
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nremaining=nbytes;
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p=(char *)startaddr;
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while(nremaining) {
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desc->cbp = K1_TO_PHYS(p);
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bytes_till_page_boundary = 4096-( (int)p & 0xfff);
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bytes_this_descriptor = MIN(bytes_till_page_boundary,nremaining);
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desc->bcnt = bytes_this_descriptor;
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desc->eox=0;
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desc->pad1=0;
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desc->xie=0;
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desc->pad0=0;
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desc->nbp = K1_TO_PHYS(desc+1);
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desc->word_pad = 0;
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nremaining -= bytes_this_descriptor;
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p+= bytes_this_descriptor;
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desc++;
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}
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desc--;
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desc->nbp = 0;
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desc->eox = 1;
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}
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void
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PrintDescriptors()
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{
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scdescr_t *desc;
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desc=desc_list;
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while(1) {
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printf(
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"0x%8x: eox 0x%x pad1 0x%x xie 0x%x pad0 0x%4x bc %d\n",
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desc,
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desc->eox,
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desc->pad1,
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desc->xie,
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desc->pad0,
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desc->bcnt);
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if(desc->eox)break;
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printf("Next address: 0x%8x, buffer address 0x%8x\n",
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desc->nbp, desc->cbp);
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desc++;
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}
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}
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/*
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** InitiateDMA - initiates a transmit DMA on channel 0 of the descriptor
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** chain starting at desc_list.
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*/
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void
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InitiateDMA(int direction)
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{
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pbus_control_write_t ctrlval;
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volatile pbus_control_write_t* ctrlptr=
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(pbus_control_write_t*)PHYS_TO_K1(HPC3_PBUS_CONTROL(direction));
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volatile unsigned long *dpptr=
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(unsigned long *)PHYS_TO_K1(HPC3_PBUS_DP(direction));
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ctrlval.pad0=0;
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ctrlval.fifo_end=2*direction+1;
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ctrlval.pad1=0;
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ctrlval.fifo_beg=2*direction;
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ctrlval.highwater=5;
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ctrlval.pad2=0;
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ctrlval.real_time=1;
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ctrlval.ch_act_ld=1;
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ctrlval.ch_act=1;
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ctrlval.flush=0;
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ctrlval.receive=direction;
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ctrlval.little=0;
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ctrlval.pad3=0;
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*dpptr=K1_TO_PHYS((direction) ? input_desc_list : desc_list);
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*ctrlptr=ctrlval;
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/* XXX
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pbus_control_write_t ctrlval;
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volatile pbus_control_write_t* ctrlptr=
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(pbus_control_write_t*)PHYS_TO_K1(HPC3_PBUS_CONTROL(0));
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volatile unsigned long *dpptr=(unsigned long *)PHYS_TO_K1(HPC3_PBUS_DP(0));
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ctrlval.pad0=0;
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#ifdef LATER
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ctrlval.fifo_end=47;
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#endif
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ctrlval.fifo_end=2;
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ctrlval.pad1=0;
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ctrlval.fifo_beg=0;
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ctrlval.highwater=4;
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ctrlval.pad2=0;
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ctrlval.real_time=1;
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ctrlval.ch_act_ld=1;
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ctrlval.ch_act=1;
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ctrlval.flush=0;
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ctrlval.receive=0;
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ctrlval.little=0;
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ctrlval.pad3=0;
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*dpptr=K1_TO_PHYS(desc_list);
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*ctrlptr=ctrlval;
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*/
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}
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void
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SetupHAL2(void)
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{
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volatile unsigned long *idr0p=(unsigned long *)PHYS_TO_K1(HAL2_IDR0);
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volatile unsigned long *idr1p=(unsigned long *)PHYS_TO_K1(HAL2_IDR1);
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volatile unsigned long *idr2p=(unsigned long *)PHYS_TO_K1(HAL2_IDR2);
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volatile unsigned long *idr3p=(unsigned long *)PHYS_TO_K1(HAL2_IDR3);
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volatile unsigned long *iarp=(unsigned long *)PHYS_TO_K1(HAL2_IAR);
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volatile unsigned long *isrp=(unsigned long *)PHYS_TO_K1(HAL2_ISR);
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int inc, mod, modctrl;
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/* Set up the ISR */
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*isrp = 0;
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us_delay(50);
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*isrp = HAL2_ISR_CODEC_RESET_N|HAL2_ISR_GLOBAL_RESET_N;
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/* Clear DMA ENABLE */
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*idr0p = 0x0; /* Disable all the devices */
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*iarp = HAL2_DMA_ENABLE_W;
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SPIN;
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/* Set up DMA Endian */
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*idr0p = 0; /* All ports are big endian */
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*iarp = HAL2_DMA_ENDIAN_W;
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SPIN;
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/* Set up DMA DRIVE */
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*idr0p = 3; /* Activate only port 0 */
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*iarp = HAL2_DMA_DRIVE_W;
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SPIN;
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/* Set up CODEC A */
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*idr0p = 0 /* Physical DMA channel */
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+(1<<3) /* Bres Clock ID */
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+(2<<8); /* Stereo Mode */
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*iarp = HAL2_CODECA_CTRL1_W;
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SPIN;
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#ifdef LATER
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*idr0p = (0<<10)+(0x00<<7)+(0x00<<2); /* unmute, A/D gains == 0 */
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#endif
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*idr0p = (1<<10)+(0x00<<7)+(0x00<<2); /* unmute, A/D gains == 0 */
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*idr1p = (0x0<<7) /* Left D/A output atten */
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+(0x0<<2) /* Right D/A output atten */
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+(0<<1) /* Digital output port data bit 1 */
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+(0); /* Digital output port data bit 0 */
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*iarp = HAL2_CODECA_CTRL2_W;
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SPIN;
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/* Set up CODEC B */
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*idr0p = 1 /* dma channel */
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+(1<<3); /* bres clock */
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/* Set up BRES CLOCK 1 */
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*idr0p = 0; /* 48khz master */
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*iarp = HAL2_BRES1_CTRL1_W;
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SPIN;
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inc=1;
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mod=1;
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modctrl = 0xffff & (inc-mod-1);
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*idr0p = inc;
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*idr1p = modctrl;
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*iarp = HAL2_BRES1_CTRL2_W;
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SPIN;
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/* Set up DMA ENABLE */
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*idr0p = 0x8 + 0x10; /* Enable only DAC A*/
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*iarp = HAL2_DMA_ENABLE_W;
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SPIN;
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}
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void
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WaitForOutput()
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{
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volatile pbus_control_read_t* ctrl0ptr=
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(pbus_control_read_t*)PHYS_TO_K1(HPC3_PBUS_CONTROL(0));
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volatile unsigned long* bp0ptr=
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(unsigned long*)PHYS_TO_K1(HPC3_PBUS_BP(0));
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pbus_control_read_t ctrl0val;
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int ntimes;
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int maxtimes=3000;
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long *prevbp = (long *)tunetab;
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long *newbp;
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volatile long *ptr=(long *)tunetab+1;
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volatile int garbage;
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long i,cr;
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int oldErr = -1, oldRev = -1, oldValid = -1, oldLClip=-1, oldRClip=-1;
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for(ntimes=0;ntimes<maxtimes;ntimes++) {
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ctrl0val = *ctrl0ptr;
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if(!ctrl0val.ch_act)break;
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garbage = *bp0ptr;
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newbp = (long *) PHYS_TO_K1(*bp0ptr);
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if (newbp <= prevbp) printf("output DMA not moving.\n");
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us_delay(10000);
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}
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}
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void
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WaitForOneDMA(int which)
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{
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volatile pbus_control_read_t* ctrl0ptr=
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(pbus_control_read_t*)PHYS_TO_K1(HPC3_PBUS_CONTROL(which));
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volatile unsigned long* bp0ptr=
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(unsigned long*)PHYS_TO_K1(HPC3_PBUS_BP(which));
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pbus_control_read_t ctrl0val;
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int ntimes;
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int maxtimes=3000;
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long *prevbp = (long *)inbuf;
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long *newbp;
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volatile long *ptr=(long *)inbuf+1;
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volatile int garbage;
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long i,cr;
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int oldErr = -1, oldRev = -1, oldValid = -1, oldLClip=-1, oldRClip=-1;
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for(ntimes=0;ntimes<maxtimes;ntimes++) {
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ctrl0val = *ctrl0ptr;
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if(!ctrl0val.ch_act)break;
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garbage = *bp0ptr;
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newbp = (long *) PHYS_TO_K1(*bp0ptr);
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if ((long *)garbage == newbp)
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printf("garbage = %x newbp = %x\n", garbage, newbp);
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cr = 0;
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if (ptr > newbp)
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printf("ptr = %x, newbp = %x\n", ptr, newbp);
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for (; ptr < newbp; ptr+=2) {
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i = *ptr;
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printf("v = %x\n", (i & HAL2_NAB_VALID));
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if (oldErr != ((i & 0xf0000000) >> 28)) {
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oldErr = (i & 0xf0000000) >> 28;
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cr++;
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}
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if (oldRev != ((i & 0x0f000000) >> 24)) {
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oldRev = (i & 0x0f000000) >> 24;
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cr++;
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}
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if (oldValid != ((i & HAL2_NAB_VALID) >> 3)) {
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oldValid = (i & HAL2_NAB_VALID) >> 3;
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cr++;
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}
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if (oldLClip != ((i & HAL2_NAB_LEFT_CLIP) >> 2)) {
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oldLClip = (i & HAL2_NAB_LEFT_CLIP) >> 2;
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cr++;
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}
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if (oldRClip != ((i & HAL2_NAB_RIGHT_CLIP) >> 1)) {
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oldRClip = (i & HAL2_NAB_RIGHT_CLIP) >> 1;
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cr++;
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}
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}
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if (cr) {
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if (ptr > ((long *)inbuf+1))
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printf("e: 0x%x rev: 0x%x val: 0x%x lc: 0x%x rc: 0x%x\n", oldErr,
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oldRev, oldValid, oldLClip, oldRClip);
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}
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us_delay(10000);
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}
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if(ntimes==maxtimes) {
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printf("Dma %d did not complete after %d*.01 seconds\n",which,ntimes);
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} else {
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printf("Dma %d complete after %d*.01 seconds\n",which,ntimes);
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}
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}
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stuff()
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{
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|
volatile unsigned char *ser1ptr=(unsigned char *)PHYS_TO_K1(0xbfbd9807);
|
|
int i;
|
|
|
|
printf("0x%x\n",ser1ptr);
|
|
us_delay(100000);
|
|
for(i=0;i<10;i++) {
|
|
*ser1ptr='C';
|
|
us_delay(100000);
|
|
}
|
|
}
|