71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
#include "sys/sbd.h"
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#include "sys/hal2.h"
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void
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hal2_codecbctrl2()
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{
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volatile unsigned long *idr0 = (unsigned long *)PHYS_TO_K1(HAL2_IDR0);
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volatile unsigned long *idr1 = (unsigned long *)PHYS_TO_K1(HAL2_IDR1);
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volatile unsigned long *iar = (unsigned long *)PHYS_TO_K1(HAL2_IAR);
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volatile unsigned long *isr = (unsigned long *)PHYS_TO_K1(HAL2_ISR);
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int i, nbad =0;
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int val0, val1;
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unsigned short j;
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unsigned short rb0, rb1;
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int badval0=0, badval1=0;
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printf("begin test of HAL2 CODECB CTRL2 register\n");
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*isr = 0x8; /* out of reset */
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/*
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* the HAL2 ADC CTRL2 reg has 12 significant bits in IDR1
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* and 11 in IDR0, so we just run through all possible values
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* a few times. We avoid writing the same values into IDR0
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* and IDR1 at the same time by adding 255 to the IDR0 value.
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*/
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for (i = 0; i < 1000; i++) {
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for (j = 0; j < 4096; j++) {
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val0 = (j + 255) & 2047;
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val1 = j;
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*idr0 = val0;
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*idr1 = val1;
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*iar = HAL2_CODECB_CTRL2_W; /* write the values */
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/*
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* spin on the ISR to make sure the value we
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* just wrote is latched in before we read it
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*/
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while (*isr & HAL2_ISR_TSTATUS);
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*idr0 = 0xffff;
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*idr1 = 0xffff;
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/*
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* read the value back
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* the CTRL2 regs have separate addresses for the two
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* words.
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*/
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*iar = HAL2_CODECB_CTRL2_R0;
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while (*isr & HAL2_ISR_TSTATUS);
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rb0 = *idr0;
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*iar = HAL2_CODECB_CTRL2_R1;
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while (*isr & HAL2_ISR_TSTATUS);
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rb1 = *idr0;
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if (rb0 != val0) {
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printf("ERROR (word 0): wrote 0x%x, got 0x%x\n", val0, rb0);
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badval0++;
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}
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if (rb1 != val1) {
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printf("ERROR (word 1): wrote 0x%x, got 0x%x\n", val1, rb1);
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badval1++;
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}
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}
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}
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if (badval0 || badval1) {
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printf("FAILED: badval0 = %d, badval1 = %d\n", badval0, badval1);
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}
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printf("end test of HAL2 CODECB CTRL2 register\n");
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}
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main()
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{
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hal2_configure_pbus_pio();
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hal2_codecbctrl2();
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}
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