it6801_HDMI_driver_for_Hi3516D源程序

ID:625958 · 发表于 2019-10-18 02:54

it6801 Driver for Hi3516D.

源程序如下:

#include "hdmirx.h"
#include "io.h"
#include "version.h"
#include "EDID.h"
#define DUMP_TIME 20
BOOL ReadRXIntPin();
void InitHDMIRX(BOOL bFullInit);
BOOL CheckHDMIRX();
void Initial8051Timer1();
void InitUrt(void);
int dump_vidmode();
int dump_audSts();
void dump_InfoFrame();
/////////////////////////////////////////////////////
// Global Data
/////////////////////////////////////////////////////
int xCntSum, xCntCnt ;
#include <sys/time.h>
void SleepX(int milli)
{
struct timespec abstime,resttime;
memset(&abstime,0,sizeof(abstime));
memset(&resttime,0,sizeof(resttime));
//if (milli > 1000)
abstime.tv_sec = milli / 1000;
abstime.tv_nsec = (milli % 1000) * 1000000;
nanosleep(&abstime,&resttime);
}
int main(void)
{
static BOOL bSignal ;
BOOL bOldSignal = -1, bChangeMode ;
int dump_count = 0 ;
printf("\n%s\n" , VERSION_STRING);
EnableHDMIRXVideoOutput(VIDEO_AUTO) ;
SelectHDMIPort(CAT_HDMI_PORTA);
InitHDMIRX(TRUE);
xCntCnt = 0 ;
xCntSum = 0 ;
while(1){
Check_HDMInterrupt();
#if 0
// for switching to port B
hdmirx_clear_hpd();
EnableHDMIRXVideoOutput(VIDEO_AUTO) ;
SelectHDMIPort(CAT_HDMI_PORTB);
hdmirx_set_hpd();
#endif
if(1)
{
dump_count ++ ;
//bOldSignal = bSignal ;
bSignal = CheckHDMIRX();
printf("bSignal:%d bOldSignal:%d\n",bSignal, bOldSignal);
bChangeMode = (bSignal != bOldSignal);
if(bChangeMode)
{
// if Changed Mode ...
if(bSignal)
{
// if signal is TRUE , then ...
dump_vidmode();
if( IsHDMIRXHDMIMode() ) dump_InfoFrame() ;
dump_audSts();
}
else
{
// if signal is FALSE , then ...
xCntCnt = 0 ;
xCntSum = 0 ;
}
// SetHDMIRXVideoOutputFormat(0x20, 0x00, 0x1);
bChangeMode = FALSE ; // clear bChange Mode action
}
else
{
// if not change mode, ...
if(bSignal)
{
// if signal is TRUE , then ...
if( (dump_count % 20) == 1 )
{
xCntCnt ++ ;
xCntSum += getHDMIRXxCnt() ;
if( xCntCnt > 40 )
{
xCntCnt /= 2 ;
xCntSum /= 2 ;
}
}
}
else
{
// if signal is FALSE , then ...
xCntCnt = 0 ;
xCntSum = 0 ;
}
}
if( dump_count > (DUMP_TIME*1000/20) )
{
dump_count = 0 ;
if( bSignal )
{
dump_vidmode();
if( IsHDMIRXHDMIMode() ) dump_InfoFrame() ;
dump_audSts();
}
else
{
printf("There is no signal: Reg10 = %02X Reg12 = %02X Reg64 = %02X Reg65 = %02X\n"
,(int)HDMIRX_ReadI2C_Byte(0x10)
,(int)HDMIRX_ReadI2C_Byte(0x12)
,(int)HDMIRX_ReadI2C_Byte(0x64)
,(int)HDMIRX_ReadI2C_Byte(0x65) ) ;
}
printf("\n\n") ;
DumpHDMIRXReg();
}
}
sleep(1);
}
return 0;
}
int dump_vidmode()
{
USHORT HActive, VActive ;
USHORT HTotal, VTotal ;
ULONG HFreq, VFreq ;
ULONG PCLK ;
xCntCnt ++ ;
xCntSum += getHDMIRXxCnt() ;
HActive = getHDMIRXHorzActive() ;
VActive = getHDMIRXVertActive() ;
HTotal = getHDMIRXHorzTotal() ;
VTotal = getHDMIRXVertTotal() ;
PCLK = 27000L * 128;
PCLK *= (ULONG) xCntCnt ;
PCLK /= (ULONG) xCntSum ;
PCLK *= 1000L ; // 100*PCLK ;
HFreq = PCLK / (ULONG)HTotal ; // HFreq
VFreq = (HFreq*100) / (ULONG)VTotal ; // VFreq * 100
printf("\n========================================================================\n") ;
printf("%s mode\n",IsHDMIRXHDMIMode()?"HDMI":"DVI") ;
printf("Mode - %dx%d@",HActive,VActive);
printf("%ld.%02ldHz",VFreq/100,VFreq%100) ;
switch(getHDMIRXOutputColorDepth())
{
case 0x7: printf("@48bits") ; break ;
case 0x6: printf("@36bits") ; break ;
case 0x5: printf("@30bits") ; break ;
case 0x4: printf("@24bits") ; break ;
default: printf("@No def(24bits)") ; break ;
}
printf(", PCLK = %ld.%02ldMHz", PCLK/1000000, (PCLK/10000)%100) ;
PCLK = xCntSum ;
PCLK *= 100 ;
PCLK /= xCntCnt ;
PCLK -= (ULONG)(xCntSum / xCntCnt)*100 ;
printf(",xCnt= %d.%02ld\n", xCntSum/xCntCnt,PCLK) ;
printf("<%4dx%4d>,",HTotal,VTotal);
printf("H:(%d,%d,%d),"
,getHDMIRXHorzFrontPorch()
,getHDMIRXHorzSyncWidth()
,getHDMIRXHorzBackPorch());
printf("V:(%d,%d,%d), "
,getHDMIRXVertFrontPorch()
,getHDMIRXVertSyncWidth()
,getHDMIRXVertSyncBackPorch());
printf("VSyncToDE = %d\n",getHDMIRXVertSyncToDE());
printf("========================================================================\n") ;
printf("HDCP %s\n",IsHDCPOn()?"ON":"OFF") ;
printf("========================================================================\n") ;
}
int dump_audSts()
{
BYTE audio_status ;
printf("\n========================================================================\n") ;
audio_status = getHDMIRXAudioStatus() ;
if( (audio_status & T_AUDIO_MASK)!=T_AUDIO_OFF )
{
BYTE ch[5] ;
if( audio_status == T_AUDIO_HBR )
{
printf("Audio input is HBR (High Bit Rate) audio.\n") ;
}
else if( audio_status == T_AUDIO_DSD )
{
printf("Audio input is DSD (One Bit Audio) audio.\n") ;
}
else
{
if( audio_status & T_AUDIO_NLPCM )
{
printf("Audio input is IEC 61937 compressed audio.\n") ;
}
else
{
printf("Audio input is IEC 60958 linear PCM audio.\n") ;
}
setHDMIRX_I2SOutput(0x1);
printf("layout %d, ",(audio_status & F_AUDIO_LAYOUT_1)?1:0) ;
printf("%d source\n", (USHORT)audio_status & 7) ;
getHDMIRXAudioChannelStatus(ch) ;
printf("Channel Status: %02X %02X %02X %02X %02X\n",(int)ch[0],(int)ch[1],(int)ch[2],(int)ch[3],(int)ch[4]) ;
}
}
else
{
printf("No Audio.\n") ;
}
printf("========================================================================\n") ;
}
void
dump_InfoFrame()
{
BYTE INFOFRAME[31] ;
int i ;
if( GetAVIInfoFrame(INFOFRAME) )
{
printf("GetAVIInfoFrame():") ;
for( i = 0 ; i <= (3+(INFOFRAME[2] & 0x1F)) ; i++ )
{
printf(" %02X",(int)INFOFRAME[i]) ;
}
printf("\n") ;
}
else
{
printf("Cannot get AVI Infoframe()\n") ;
}
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