video.c

ICETEK-DM642-EDUlabv1.3.rar

/*
 *  Copyright 2003 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *  
 */
/* "@(#) DDK 1.10.00.23 07-02-03 (ddk-b12)" */
#include <std.h>
#include <tsk.h>  
#include <sem.h>   
#include <gio.h>

#include <csl_dat.h>
#include <csl_cache.h>


#include <fvid.h>
#include <edc.h>
#include <vport.h>
#include <vportcap.h>
#include <vportdis.h>
#include <saa7105.h>
#include <saa7115.h>    

#include <evmdm642.h>

#include "evmdm642_vcapparams.h"
#include "evmdm642_vdisparams.h"   

#include "ICETEK-DM642-PCI.h"

/* heap IDs defined in the BIOS configuration file */
extern Int EXTERNALHEAP;

extern unsigned int m_uVideoStatus,m_bFreeze;
extern unsigned char m_dbFrameY[SIMGWIDTH*SIMGHEIGHT];
extern unsigned char m_dbFrameU[SIMGWIDTH1*SIMGHEIGHT1];
extern unsigned char m_dbFrameV[SIMGWIDTH1*SIMGHEIGHT1];
/*
 * ======== main ========
 */
main()
{
    /******************************************************/
    /* open CSL DAT module for fast copy                  */
    /******************************************************/
    CSL_init();                                             
    CACHE_clean(CACHE_L2ALL, 0, 0);
//    CACHE_setL2Mode(CACHE_256KCACHE);       
    CACHE_setL2Mode(CACHE_0KCACHE);       
    CACHE_enableCaching(CACHE_EMIFA_CE00);
    CACHE_enableCaching(CACHE_EMIFA_CE01);
    DAT_open(DAT_CHAANY, DAT_PRI_LOW, DAT_OPEN_2D);

	ICETEKDM642PCIBoardInit();
}

/*
 * ======== tskVideoLoopback ========
 * video loopback function.
 */
void tskVideoLoopback()
{
    int m_nWork;
    Int status;
    FVID_Handle disChan; 
    Int frames = 0;
    FVID_Frame *disFrameBuf;
    Int numLinesDis = EVMDM642_vDisParamsChan.imgVSizeFld1;
    Int numLinesCap = EVMDM642_vCapParamsChan.fldYStop1 -
       EVMDM642_vCapParamsChan.fldYStrt1+1;

    
    Int numLines = (numLinesDis > numLinesCap) ? numLinesCap : numLinesDis;

    FVID_Handle capChan; 
    Int numPixels = EVMDM642_vCapParamsChan.fldXStop1 - 
       EVMDM642_vCapParamsChan.fldXStrt1+1;
    FVID_Frame *capFrameBuf;

    numLines *= 2; /* both fields */
    /******************************************************/
    /* allocate both capture and display frame buffers    */
    /* in external heap memory                            */
    /******************************************************/
        EVMDM642_vCapParamsChan.segId = EXTERNALHEAP;
        EVMDM642_vDisParamsChan.segId = EXTERNALHEAP;
        EVMDM642_vDisParamsSAA7105.hI2C = EVMDM642_I2C_hI2C;
        EVMDM642_vCapParamsSAA7115.hI2C = EVMDM642_I2C_hI2C;

    /******************************************************/
    /* initialization of capture driver                   */
    /******************************************************/
    capChan = FVID_create("/VP0CAPTURE/A/0", 
            IOM_INPUT, &status, (Ptr)&EVMDM642_vCapParamsChan, NULL);

    /******************************************************/
    /* initialization of display driver                   */
    /******************************************************/
    disChan = FVID_create("/VP2DISPLAY", IOM_OUTPUT, 
        &status, (Ptr)&EVMDM642_vDisParamsChan, NULL);

    
    /******************************************************/
    /* configure video encoder & decoder                  */
    /******************************************************/
    for ( m_nWork=0;m_nWork<6;m_nWork++ )
    {
	    FVID_control(disChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
	        (Ptr)&EVMDM642_vDisParamsSAA7105);
	    FVID_control(capChan, VPORT_CMD_EDC_BASE + EDC_CONFIG, 
	        (Ptr)&EVMDM642_vCapParamsSAA7115);
	}

    /******************************************************/
    /* start capture & display operation                  */    
    /******************************************************/
    FVID_control(disChan, VPORT_CMD_START, NULL);
    FVID_control(capChan, VPORT_CMD_START, NULL);
    
    /********************************************************/
    /* request a frame buffer from display & capture driver */
    /********************************************************/
    FVID_alloc(disChan, &disFrameBuf);
    FVID_alloc(capChan, &capFrameBuf);
    frames ++;


    while ( 1 )
    {
        switch ( m_uVideoStatus )
        {
        	case FREEZE:
		        DAT_copy2d(DAT_2D2D,
		        			m_dbFrameY,
		        				disFrameBuf->frame.iFrm.y1,
		        					numPixels,
		        						numLines,
		        							numPixels);
		        DAT_copy2d(DAT_2D2D,
		        			m_dbFrameV,
		        				disFrameBuf->frame.iFrm.cb1,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
		        DAT_copy2d(DAT_2D2D,
		        			m_dbFrameU,
		        				disFrameBuf->frame.iFrm.cr1,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
				if ( !m_bFreeze )
				{
					ICETEKDM642PCIYUVRGB();
					m_bFreeze=1;
				}
        		break;
        	case LOOPBACK:
			default:
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.y1,
		        				disFrameBuf->frame.iFrm.y1,
		        					numPixels,
		        						numLines,
		        							numPixels);
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.y1,
		        				m_dbFrameY,
		        					numPixels,
		        						numLines,
		        							numPixels);
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.cb1,
		        				disFrameBuf->frame.iFrm.cb1,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.cb1,
		        				m_dbFrameV,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.cr1,
		        				disFrameBuf->frame.iFrm.cr1,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
		        DAT_copy2d(DAT_2D2D,
		        			capFrameBuf->frame.iFrm.cr1,
		        				m_dbFrameU,
		        					numPixels>>1,
		        						numLines,
		        							numPixels>>1);
				m_bFreeze=0;
        		break;
        }
        DAT_wait(DAT_XFRID_WAITALL);
        FVID_exchange(capChan, &capFrameBuf);
        FVID_exchange(disChan, &disFrameBuf);        
        frames ++;              
   }
}