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software/videomixer: report char position + detected resolution, detect phase at beginning

This commit is contained in:
Sebastien Bourdeauducq 2013-03-24 00:46:23 +01:00
parent 1333367de8
commit 6010308317
2 changed files with 64 additions and 19 deletions
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33
software/include/hw/dvisampler.h
View File

@ -14,20 +14,31 @@
#define CSR_DVISAMPLER0_D0_PHASE DVISAMPLER0_CSR(0x10)
#define CSR_DVISAMPLER0_D0_PHASE_RESET DVISAMPLER0_CSR(0x14)
#define CSR_DVISAMPLER0_D0_CHAR_SYNCED DVISAMPLER0_CSR(0x18)
#define CSR_DVISAMPLER0_D0_CTL_POS DVISAMPLER0_CSR(0x1C)
#define CSR_DVISAMPLER0_D1_DELAY_CTL DVISAMPLER0_CSR(0x1C)
#define CSR_DVISAMPLER0_D1_DELAY_BUSY DVISAMPLER0_CSR(0x20)
#define CSR_DVISAMPLER0_D1_PHASE DVISAMPLER0_CSR(0x24)
#define CSR_DVISAMPLER0_D1_PHASE_RESET DVISAMPLER0_CSR(0x28)
#define CSR_DVISAMPLER0_D1_CHAR_SYNCED DVISAMPLER0_CSR(0x2C)
#define CSR_DVISAMPLER0_D1_DELAY_CTL DVISAMPLER0_CSR(0x20)
#define CSR_DVISAMPLER0_D1_DELAY_BUSY DVISAMPLER0_CSR(0x24)
#define CSR_DVISAMPLER0_D1_PHASE DVISAMPLER0_CSR(0x28)
#define CSR_DVISAMPLER0_D1_PHASE_RESET DVISAMPLER0_CSR(0x2C)
#define CSR_DVISAMPLER0_D1_CHAR_SYNCED DVISAMPLER0_CSR(0x30)
#define CSR_DVISAMPLER0_D1_CTL_POS DVISAMPLER0_CSR(0x34)
#define CSR_DVISAMPLER0_D2_DELAY_CTL DVISAMPLER0_CSR(0x30)
#define CSR_DVISAMPLER0_D2_DELAY_BUSY DVISAMPLER0_CSR(0x34)
#define CSR_DVISAMPLER0_D2_PHASE DVISAMPLER0_CSR(0x38)
#define CSR_DVISAMPLER0_D2_PHASE_RESET DVISAMPLER0_CSR(0x3C)
#define CSR_DVISAMPLER0_D2_CHAR_SYNCED DVISAMPLER0_CSR(0x40)
#define CSR_DVISAMPLER0_D2_DELAY_CTL DVISAMPLER0_CSR(0x38)
#define CSR_DVISAMPLER0_D2_DELAY_BUSY DVISAMPLER0_CSR(0x3C)
#define CSR_DVISAMPLER0_D2_PHASE DVISAMPLER0_CSR(0x40)
#define CSR_DVISAMPLER0_D2_PHASE_RESET DVISAMPLER0_CSR(0x44)
#define CSR_DVISAMPLER0_D2_CHAR_SYNCED DVISAMPLER0_CSR(0x48)
#define CSR_DVISAMPLER0_D2_CTL_POS DVISAMPLER0_CSR(0x4C)
#define CSR_DVISAMPLER0_CHAN_SYNCED DVISAMPLER0_CSR(0x44)
#define CSR_DVISAMPLER0_CHAN_SYNCED DVISAMPLER0_CSR(0x50)
#define CSR_DVISAMPLER0_HRESH DVISAMPLER0_CSR(0x54)
#define CSR_DVISAMPLER0_HRESL DVISAMPLER0_CSR(0x58)
#define CSR_DVISAMPLER0_VRESH DVISAMPLER0_CSR(0x5C)
#define CSR_DVISAMPLER0_VRESL DVISAMPLER0_CSR(0x60)
#define CSR_DVISAMPLER0_DECNT2 DVISAMPLER0_CSR(0x64)
#define CSR_DVISAMPLER0_DECNT1 DVISAMPLER0_CSR(0x68)
#define CSR_DVISAMPLER0_DECNT0 DVISAMPLER0_CSR(0x6C)
#define DVISAMPLER_DELAY_CAL 0x01
#define DVISAMPLER_DELAY_RST 0x02

50
software/videomixer/main.c
View File

@ -1,4 +1,5 @@
#include <stdio.h>
#include <stdlib.h>
#include <irq.h>
#include <uart.h>
@ -6,6 +7,21 @@
static int d0, d1, d2;
static void print_status(void)
{
printf("Ph: %4d %4d %4d // %d%d%d [%d %d %d] // %d // %dx%d // %d\n", d0, d1, d2,
CSR_DVISAMPLER0_D0_CHAR_SYNCED,
CSR_DVISAMPLER0_D1_CHAR_SYNCED,
CSR_DVISAMPLER0_D2_CHAR_SYNCED,
CSR_DVISAMPLER0_D0_CTL_POS,
CSR_DVISAMPLER0_D1_CTL_POS,
CSR_DVISAMPLER0_D2_CTL_POS,
CSR_DVISAMPLER0_CHAN_SYNCED,
(CSR_DVISAMPLER0_HRESH << 8) | CSR_DVISAMPLER0_HRESL,
(CSR_DVISAMPLER0_VRESH << 8) | CSR_DVISAMPLER0_VRESL,
(CSR_DVISAMPLER0_DECNT2 << 16) | (CSR_DVISAMPLER0_DECNT1 << 8) | CSR_DVISAMPLER0_DECNT0);
}
static void calibrate_delays(void)
{
CSR_DVISAMPLER0_D0_DELAY_CTL = DVISAMPLER_DELAY_CAL;
@ -60,28 +76,46 @@ static void adjust_phase(void)
CSR_DVISAMPLER0_D2_PHASE_RESET = 1;
break;
}
printf("Ph: %4d %4d %4d // %d%d%d // %d\n", d0, d1, d2,
CSR_DVISAMPLER0_D0_CHAR_SYNCED,
CSR_DVISAMPLER0_D1_CHAR_SYNCED,
CSR_DVISAMPLER0_D2_CHAR_SYNCED,
CSR_DVISAMPLER0_CHAN_SYNCED);
}
static int init_phase(void)
{
int od0, od1, od2;
int i, j;
for(i=0;i<100;i++) {
od0 = d0;
od1 = d1;
od2 = d2;
for(j=0;j<1000;j++)
adjust_phase();
if((abs(d0 - od0) < 4) && (abs(d1 - od1) < 4) && (abs(d2 - od2) < 4))
return 1;
}
return 0;
}
static void vmix(void)
{
int i;
unsigned int counter;
while(1) {
while(!CSR_DVISAMPLER0_PLL_LOCKED);
printf("PLL locked\n");
calibrate_delays();
adjust_phase();
if(init_phase())
printf("Phase init OK\n");
else
printf("Phase did not settle\n");
print_status();
counter = 0;
while(CSR_DVISAMPLER0_PLL_LOCKED) {
counter++;
if(counter == 200000) {
adjust_phase();
if(counter == 2000000) {
print_status();
//adjust_phase();
counter = 0;
}
}