/*
* Copyright 2006 by Spectrum Digital Incorporated.
* All rights reserved. Property of Spectrum Digital Incorporated.
*/
/*
* Video Loopback Test
*
*/
#include "stdio.h"
#include "evmdm6437_dip.h"
#include "tvp5146.h"
#define NTSC 1
#define PAL 0
#define COLORBARS 1
#define LOOPBACK 0
#define SVIDEO_OUT 1
#define COMPOSITE_OUT 0
/* ------------------------------------------------------------------------ *
* *
* vpfe_init( ntsc/pal ) *
* *
* ------------------------------------------------------------------------ */
static void vpfe_init( Uint32 ntsc_pal_mode , Uint32 video_buffer)
{
// Uint32 video_buffer = DDR_BASE + ( DDR_SIZE / 2 );
Uint32 width;
Uint32 height;
if ( ntsc_pal_mode == NTSC )
{
width = 720;
height = 480;
}
else
{
width = 720;
//height = 480;
height = 576; //zq change
}
VPFE_CCDC_SYN_MODE = 0x00032F84; // interlaced, with VD pority as negative
VPFE_CCDC_HD_VD_WID = 0;
VPFE_CCDC_PIX_LINES = 0x02CF020D;
/*
* sph = 1, nph = 1440, according to page 32-33 of the CCDC spec
* for BT.656 mode, this setting captures only the 720x480 of the
* active NTSV video window
*/
VPFE_CCDC_HORZ_INFO = width << 1; // Horizontal lines
VPFE_CCDC_HSIZE_OFF = width << 1; // Horizontal line offset
VPFE_CCDC_VERT_START = 0; // Vertical start line
VPFE_CCDC_VERT_LINES = height >> 1; // Vertical lines
VPFE_CCDC_CULLING = 0xFFFF00FF; // Disable cullng
/*
* Interleave the two fields
*/
VPFE_CCDC_SDOFST = 0x00000249;
VPFE_CCDC_SDR_ADDR = video_buffer;
VPFE_CCDC_CLAMP = 0;
VPFE_CCDC_DCSUB = 0;
VPFE_CCDC_COLPTN = 0xEE44EE44;
VPFE_CCDC_BLKCMP = 0;
VPFE_CCDC_FPC_ADDR = 0x86800000;
VPFE_CCDC_FPC = 0;
VPFE_CCDC_VDINT = 0;
VPFE_CCDC_ALAW = 0;
VPFE_CCDC_REC656IF = 0x00000003;
/*
* Input format is Cb:Y:Cr:Y, w/ Y in odd-pixel position
*/
VPFE_CCDC_CCDCFG = 0x00000800;
VPFE_CCDC_FMTCFG = 0;
VPFE_CCDC_FMT_HORZ = 0x000002D0;
VPFE_CCDC_FMT_VERT = 0x0000020E;
VPFE_CCDC_FMT_ADDR0 = 0;
VPFE_CCDC_FMT_ADDR1 = 0;
VPFE_CCDC_FMT_ADDR2 = 0;
VPFE_CCDC_FMT_ADDR3 = 0;
VPFE_CCDC_FMT_ADDR4 = 0;
VPFE_CCDC_FMT_ADDR5 = 0;
VPFE_CCDC_FMT_ADDR6 = 0;
VPFE_CCDC_FMT_ADDR7 = 0;
VPFE_CCDC_PRGEVEN_0 = 0;
VPFE_CCDC_PRGEVEN_1 = 0;
VPFE_CCDC_PRGODD_0 = 0;
VPFE_CCDC_PRGODD_1 = 0;
VPFE_CCDC_VP_OUT = 0x041A2D00;
VPFE_CCDC_PCR = 0x00000001; // Enable CCDC
}
/* ------------------------------------------------------------------------ *
* *
* vpbe_init( colorbars/loopback, ntsc/pal, svideo/composite ) *
* *
* ------------------------------------------------------------------------ */
static void vpbe_init( Uint32 colorbar_loopback_mode, Uint32 ntsc_pal_mode, Uint32 output_mode, Uint32 video_buffer )
{
// Uint32 video_buffer = DDR_BASE + ( DDR_SIZE / 2 );
Uint32 basep_x;
Uint32 basep_y;
Uint32 width;
Uint32 height;
if ( ntsc_pal_mode == NTSC )
{
basep_x = 122;
basep_y = 18;
width = 720;
height = 480;
}
else
{
basep_x = 132;
basep_y = 22;
width = 720;
//height = 480;
height = 576; //zq change
}
/*
* Setup VPBE
*/
VPSS_CLK_CTRL = 0x00000018; // Enable DAC and VENC clock, both at 27 MHz
VPBE_PCR = 0; // No clock div, clock enable
/*
* Setup OSD
*/
VPBE_OSD_MODE = 0x000000fc; // Blackground color blue using clut in ROM0
VPBE_OSD_OSDWIN0MD = 0; // Disable both osd windows and cursor window
VPBE_OSD_OSDWIN1MD = 0;
VPBE_OSD_RECTCUR = 0;
VPBE_OSD_VIDWIN0OFST = width >> 4;
VPBE_OSD_VIDWIN0ADR = video_buffer;
VPBE_OSD_BASEPX = basep_x;
VPBE_OSD_BASEPY = basep_y;
VPBE_OSD_VIDWIN0XP = 0;
VPBE_OSD_VIDWIN0YP = 0;
VPBE_OSD_VIDWIN0XL = width;
VPBE_OSD_VIDWIN0YL = height >> 1;
VPBE_OSD_MISCCTL = 0;
VPBE_OSD_VIDWINMD = 0x00000003; // Disable vwindow 1 and enable vwindow 0
// Frame mode with no up-scaling
/*
* Setup VENC
*/
if ( ntsc_pal_mode == NTSC )
VPBE_VENC_VMOD = 0x00000003; // Standard NTSC interlaced output
else
VPBE_VENC_VMOD = 0x00000043; // Standard PAL interlaced output
VPBE_VENC_VDPRO = colorbar_loopback_mode << 8;
VPBE_VENC_DACTST = 0;
VPBE_VENC_DACSEL = 0x00004210;
/*
* Choose Output mode
*/
if ( output_mode == COMPOSITE_OUT )
VPBE_VENC_DACSEL = 0x00000000;
else if ( output_mode == SVIDEO_OUT )
VPBE_VENC_DACSEL = 0x00004210;
}
/* ------------------------------------------------------------------------ *
* *
* video_loopback_test( ) *
* *
* *
* *
* ------------------------------------------------------------------------ */
Int16 video_loopback_test( )
{
Int16 ntsc_pal_mode;
Int16 output_mode;
Uint32 video_capture_buffer = (DDR_BASE + ( DDR_SIZE / 2 ));
Uint32 video_display_buffer = (DDR_BASE + ( DDR_SIZE / 2 ) + ( DDR_SIZE / 4 ));
Uint32 buffer_size;
EVMDM6437_DIP_init( );
do
{
/* Check Video Settings */
//ntsc_pal_mode = EVMDM6437_DIP_get( JP1_JUMPER ); // NTSC/PAL
//output_mode = EVMDM6437_DIP_get( SW7_SWITCH ); // SVideo/Composite
ntsc_pal_mode = PAL; //zq change
output_mode = COMPOSITE_OUT; //zq change
if ( ntsc_pal_mode == NTSC )
{
buffer_size = 720 * 480 * 2;
if ( output_mode == COMPOSITE_OUT )
printf( " Video Loopback test: [NTSC][COMPOSITE]\n" );
else if ( output_mode == SVIDEO_OUT )
printf( " Video Loopback test: [NTSC][S-VIDEO]\n" );
else
return -1;
}
else if ( ntsc_pal_mode == PAL )
{
buffer_size = 720 * 576 * 2;
if ( output_mode == COMPOSITE_OUT )
printf( " Video Loopback test: [PAL][COMPOSITE]\n" );
else if ( output_mode == SVIDEO_OUT )
printf( " Video Loopback test: [PAL][S-VIDEO]\n" );
else
return -1;
}
else
return -2;
/* Setup Front-End */
tvp5146_init( ntsc_pal_mode, output_mode);
vpfe_init( ntsc_pal_mode, video_capture_buffer );
/* Setup Back-End */
vpbe_init( LOOPBACK, ntsc_pal_mode, output_mode, video_capture_buffer);
/* Wait for the USER to press something useful */
while ( 1 )
{
EVMDM6437_I2C_GPIO_waitForIntr( -1 );
/*
if ( EVMDM6437_DIP_get( JP1_JUMPER ) != ntsc_pal_mode )
break;
if ( EVMDM6437_DIP_get( SW7_SWITCH ) != output_mode )
break;*/ //zq change
}
} while ( 1 );
return 0;
}
显示器显示类似这样。。。什么情况呀，是代码哪里错了吗？
