radio.c

我个人编写的车载dvd上的程序

	}
	else if(FreqInOirtFM(setfreq))
	{
		pc=(setfreq+1070)/1-32;
	}	
	else if(FreqInWBFM(setfreq))
	{
		pc=(setfreq-2400)/25+6892;//PLL counter(162.400)=6892
	}
	else if(FreqInNormalFM(setfreq))
	{
		pc=(setfreq+1070)/5-32;
	}
	else
	{
		pc=(setfreq+10700)/1-32;
	}
	Radio.TunerBuff[1]=(unsigned char)(pc&0x00FF);
	Radio.TunerBuff[2]=(unsigned char)((pc>>8)&0x00FF);
	Radio.TunerBuff[4]=GetTV2(setfreq);

	//charge pump
	if(FreqInFM(setfreq))
	{
		Radio.TunerBuff[0]&= 0x80;
		Radio.TunerBuff[0]=Radio.TunerBuff[0]|PLL_HIGHCURRENT_MODE|PLL_LOWCURRENT_100uA\
				              |Radio_PLL_FMISet(setfreq);
	}
	else
	{
		Radio.TunerBuff[0]&= 0x80;
		Radio.TunerBuff[0]=Radio.TunerBuff[0]| PLL_HIGHCURRENT_MODE | PLL_LOWCURRENT_50uA\
				              |Radio_PLL_AMISet(setfreq);
	}
	if(start>0)start=0;
	if(end<4)end=4;

	if(FreqInFM(setfreq)&& (FreqInAM(Radio.Freq)||Radio.F_ForceSetBuff))//Change to FM
	{
		//IF Counter control 1
		Radio.TunerBuff[5]&= 0x48;
		Radio.TunerBuff[5]= Radio.TunerBuff[5] | PLL_LOCK_ENABLE | PLL_IFC_FMMODE \
			                  |PLL_TSAMPLE_FM20_48_AM128;
		//IF Counter control 2
		Radio.TunerBuff[6]= PLL_IFC_CENTER_10_7MHZ | PLL_IFC_EW_FM12_5_AM2K;	
		
		//Vco divder and pll reference
		if(FreqInOirtFM(setfreq))
			Radio.TunerBuff[14]=y00110110;
		else if(FreqInJapanFM(setfreq))
			Radio.TunerBuff[14]=y00100010;
		else if(FreqInWBFM(setfreq))
			Radio.TunerBuff[14]=y00101111;
		else
			Radio.TunerBuff[14]=y00100101;
		
		//Change tv2 offset and switch "ON" iss filter for weather band	
		if(FreqInWBFM(setfreq))
		{
                     Radio.TunerBuff[7] &= 0xCF;
                     Radio.TunerBuff[7] |= 0x20;
                     Radio.TunerBuff[8] |= 0x08;	
		}
		else
		{
			Radio.TunerBuff[7] &= 0xCF;
			Radio.TunerBuff[8] &= 0xf7;
		}

		//SSTOP threshold
		if(Radio.F_LocDx)
		{
			Radio.TunerBuff[23] &= 0x0F;
			Radio.TunerBuff[23] += SSTOP_IFC_4_40V; 
		}
		else
		{
			Radio.TunerBuff[23] &= 0x0F;
			Radio.TunerBuff[23] += SSTOP_IFC_2_51V; //KSE FSTC
			//Radio.TunerBuff[23] += SSTOP_IFC_1_43V;
		}

		//IF gain
		Radio.TunerBuff[19] &= 0xf9;
		Radio.TunerBuff[19] |=0x06;//18dB in FM
		
		if(start>5)start=5;
		if(end<23)end=23;
	}
	else if(FreqInAM(setfreq)&& (FreqInFM(Radio.Freq)||Radio.F_ForceSetBuff))//Change to AM
	{
		//IF Counter control 1
		Radio.TunerBuff[5]&= 0x48;
		Radio.TunerBuff[5] = Radio.TunerBuff[5] | PLL_LOCK_ENABLE | PLL_IFC_AM450K\
						|PLL_TSAMPLE_FM10_24_AM64;
		//IF Counter control 2
		Radio.TunerBuff[6] = PLL_IFC_CENTER_450KHZ| PLL_IFC_EW_FM12_5_AM2K;	
		
		//Vco divder and pll reference
		Radio.TunerBuff[14]=y01110101;
		
		//SSTOP threshold
		if(Radio.F_LocDx)
		{
			Radio.TunerBuff[23] &= 0x0F;
			Radio.TunerBuff[23] += SSTOP_IFC_4_13V;
		}
		else
		{
			Radio.TunerBuff[23] &= 0x0F;
			Radio.TunerBuff[23] += SSTOP_IFC_1_43V;
		}
		
		//IF gain
		Radio.TunerBuff[19] &= 0xf9;//9dB in AM

		if(start>5)start=5;
		if(end<23)end=23;
	}
	if(end<32)
	{
		RadioTunerSend(start,end);
	}
	else
	{
		RadioTunerSend(start,31);
		RadioTunerSend(32,end);
	}
	Radio.F_ForceSetBuff=0;
}
#endif

//Yete upgrade for TDA7541 on June-22-2007
#if TDA7541_TUNER
if(Radio.F_TDA7541)
{
	start=29;
	end=0;
	
	if(Radio.F_ForceSetBuff||(FreqInFM(setfreq) && FreqInAM(Radio.Freq))||(FreqInAM(setfreq) && FreqInFM(Radio.Freq)))
	{
		if(FreqInFM(setfreq) && FreqInAM(Radio.Freq))//change to FM
		{
			EepromRead(TunerEepromAddress,10,30,&EepromBuff[0]);
		}
		if(FreqInAM(setfreq) && FreqInFM(Radio.Freq))//change to AM
		{
			EepromRead(TunerEepromAddress,70,30,&EepromBuff[0]);//Another setting for AM!!!!!!!Depend on EEPROM structure
		}
		for(i=0;i<30;i++)
			Radio.TunerBuff[i]=EepromBuff[i];
		Radio.TunerBuff[0]=(Radio.TunerBuff[0]&0x07)|TDA7541_PLL_LOCK_ENABLE|TDA7541_STEREO_MUTE_DISABLE|TDA7541_LOCAL_DISABLE|TDA7541_ASFC_NORMAL|TDA7541_SEEK_OFF;
		Radio.TunerBuff[20]=(Radio.TunerBuff[20]&0xbf)|TDA7541_MPTC_ENABLE;
		start=0;
		end=29;
	}

	//PLL counter
	if(FreqInJapanFM(setfreq))
	{
		pc=(setfreq-1070)/5-32;
	}
	else if(FreqInOirtFM(setfreq))
	{
		pc=(setfreq+1070)/1-32;
	}	
	else if(FreqInWBFM(setfreq))
	{
		pc=(setfreq-2400)/25+6892;//PLL counter(162.400)=6892
	}
	else if(FreqInNormalFM(setfreq))
	{
		pc=(setfreq+1070)/5-32;
	}
	else
	{
		pc=(setfreq+10700)/1-32;
	}
	Radio.TunerBuff[1]=(unsigned char)(pc&0x00FF);
	Radio.TunerBuff[2]=(unsigned char)((pc>>8)&0x00FF);
	//TV2
	Radio.TunerBuff[3]=GetTV2(setfreq);
	//charge pump
	if(FreqInFM(setfreq))
	{
		Radio.TunerBuff[0]=(Radio.TunerBuff[0]&0xf8)|Radio_PLL_FMISet(setfreq);
	}
	else
	{
		Radio.TunerBuff[0]=(Radio.TunerBuff[0]&0xf8)|Radio_PLL_AMISet(setfreq);
	}
	if(start>0)start=0;
	if(end<3)end=3;

	//Change to FM band from other band
	if(FreqInFM(setfreq)
		&& (FreqInAM(Radio.Freq)||Radio.F_ForceSetBuff))
	{
		//IF Counter control
		//Register25-Disable expand mode of IF sampling time and error window
		Radio.TunerBuff[25]=0xfe;
		if(FreqInWBFM(setfreq))
			Radio.TunerBuff[4]= (Radio.TunerBuff[4]&0x04)|TDA7541_PLL_TV_TRACK|TDA7541_PLL_TVOFFSET_ENABLE|TDA7541_PLL_TSAMPLE_FM20_48_AM128|TDA7541_PLL_IFC_EW_FM12_5_AM2K|TDA7541_FMMODE;
		else
			Radio.TunerBuff[4]= (Radio.TunerBuff[4]&0x04)|TDA7541_PLL_TV_TRACK|TDA7541_PLL_TVOFFSET_DISABLE|TDA7541_PLL_TSAMPLE_FM20_48_AM128|TDA7541_PLL_IFC_EW_FM12_5_AM2K|TDA7541_FMMODE;

		//Vco divder and pll reference
		if(FreqInOirtFM(setfreq))
			Radio.TunerBuff[5]=(Radio.TunerBuff[5]&0xc0)|TDA7541_VCO_DIVIDER_3|TDA7541_VCO_PHASE_180|TDA7541_PLL_REFERECE_10KHz;
		else if(FreqInJapanFM(setfreq))
			Radio.TunerBuff[5]=(Radio.TunerBuff[5]&0xc0)|TDA7541_VCO_DIVIDER_3|TDA7541_VCO_PHASE_0|TDA7541_PLL_REFERECE_50KHz;
		else if(FreqInWBFM(setfreq))
			Radio.TunerBuff[5]=(Radio.TunerBuff[5]&0xc0)|TDA7541_VCO_DIVIDER_ORIGINAL|TDA7541_VCO_PHASE_180|TDA7541_PLL_REFERECE_25KHz;
		else
			Radio.TunerBuff[5]=(Radio.TunerBuff[5]&0xc0)|TDA7541_VCO_DIVIDER_2|TDA7541_VCO_PHASE_180|TDA7541_PLL_REFERECE_50KHz;
		
		//filter/gain for weather band	
		if(FreqInWBFM(setfreq))
			Radio.TunerBuff[11]=(Radio.TunerBuff[11]&0x0fd)|TDA7541_WB_ENABLE;
		else
			Radio.TunerBuff[11]=(Radio.TunerBuff[11]&0x0fd)|TDA7541_WB_DISABLE;

		//IF gain and Q
		//Radio.TunerBuff[14]=(Radio.TunerBuff[14]&0x0F)|TDA7541_IF2Q_R5k_FMQ3|TDA7541_IF2_GAIN_21;

		//STD vco
		//Radio.TunerBuff[23]=(Radio.TunerBuff[23]&0xdf)|TDA7541_STD_VCO_ON;
		
		//SSTOP threshold---!!!Cutomer can adjust this threshold to adapt their own seek sensitivity requirment
		if(Radio.F_LocDx)
			Radio.TunerBuff[10]= (Radio.TunerBuff[10]&0x0F)|TDA7541_SSTOP_IFC_FM2_1_AM3_5; 
		else
			Radio.TunerBuff[10]= (Radio.TunerBuff[10]&0x0F)|TDA7541_SSTOP_IFC_FM1_1_AM2_0;
		
		if(start>4)start=4;
		if(end<25)end=25;
	}
	
	//Change to AM band from other band
	else if(FreqInAM(setfreq)
		&& (FreqInFM(Radio.Freq)||Radio.F_ForceSetBuff))
	{
		//IF Counter control
		if(FreqInLWAM(setfreq))
		{
			//Registe25--enable expand mode error window for LW
			Radio.TunerBuff[25]=0x7e;
			Radio.TunerBuff[4]= (Radio.TunerBuff[4]&0x04)|TDA7541_PLL_TV_TRACK|TDA7541_PLL_TVOFFSET_DISABLE|TDA7541_PLL_TSAMPLE_FM10_24_AM64|TDA7541_PLL_IFC_EW_FM12_5_AM2K|TDA7541_AMMODE;
		}
		else
		{
			//Register25-Disable expand mode of IF sampling time and error window
			Radio.TunerBuff[25]=0xfe;
			Radio.TunerBuff[4]= (Radio.TunerBuff[4]&0x04)|TDA7541_PLL_TV_TRACK|TDA7541_PLL_TVOFFSET_DISABLE|TDA7541_PLL_TSAMPLE_FM10_24_AM64|TDA7541_PLL_IFC_EW_FM6_25_AM1K|TDA7541_AMMODE;
		}
		//Vco divder and pll reference
		Radio.TunerBuff[5]=TDA7541_AM_PREDIVIDER_10|TDA7541_VCO_DIVIDER_2|TDA7541_VCO_PHASE_180|TDA7541_PLL_REFERECE_10KHz;

		//Weather band disable
		Radio.TunerBuff[11]=(Radio.TunerBuff[11]&0x0fd)|TDA7541_WB_DISABLE;

		//IF gain and Q
		//Radio.TunerBuff[14]=(Radio.TunerBuff[14]&0x0F)|TDA7541_IF2Q_NOR_AMQ28_FMQ28|TDA7541_IF2_GAIN_9;

		//STD vco
		//Radio.TunerBuff[23]=(Radio.TunerBuff[23]&0xdf)|TDA7541_STD_VCO_OFF;
		
		//SSTOP threshold---!!!Cutomer can adjust this threshold to adapt their own seek sensitivity requirment
		if(Radio.F_LocDx)
			Radio.TunerBuff[10]= (Radio.TunerBuff[10]&0x0F)|TDA7541_SSTOP_IFC_FM1_3_AM2_3; 
		else
			Radio.TunerBuff[10]= (Radio.TunerBuff[10]&0x0F)|TDA7541_SSTOP_IFC_FM0_7_AM1_4;

		if(start>4)start=4;
		if(end<25)end=25;
	}
	
	RadioTunerSend(start,end);
	Radio.F_ForceSetBuff=0;
}
#endif
	
	if((FreqInNormalFM(setfreq)&&(!FreqInNormalFM(Radio.Freq)))||(FreqInJapanFM(setfreq)&&(!FreqInJapanFM(Radio.Freq))))
	{
		Radio.MaxFreq=Area[Radio.Area].FMMaxFreq;
		Radio.MinFreq=Area[Radio.Area].FMMinFreq;
		Radio.Step=Area[Radio.Area].FMStep;
		Radio.SeekStep=Area[Radio.Area].FMSeekStep;
	}
	else if(FreqInOirtFM(setfreq)&&(!FreqInOirtFM(Radio.Freq)))
	{
		Radio.MaxFreq=Area[AREA_OIRT].FMMaxFreqOirt;
		Radio.MinFreq=Area[AREA_OIRT].FMMinFreqOirt;
		Radio.Step=Area[AREA_OIRT].FMStepOirt;
		Radio.SeekStep=Radio.Step;
	}
	else if(FreqInMWAM(setfreq)&&(!FreqInMWAM(Radio.Freq)))
	{
		Radio.MaxFreq=Area[Radio.Area].AMMaxFreqMW;
		Radio.MinFreq=Area[Radio.Area].AMMinFreqMW;
		Radio.Step=Area[Radio.Area].AMStepMW;
		Radio.SeekStep=Radio.Step;
	}
	else if(FreqInLWAM(setfreq)&&(!FreqInLWAM(Radio.Freq)))
	{
		Radio.MaxFreq=Area[Radio.Area].AMMaxFreqLW;
		Radio.MinFreq=Area[Radio.Area].AMMinFreqLW;
		Radio.Step=Area[Radio.Area].AMStepLW;
		Radio.SeekStep=Radio.Step;
	}
	else if(FreqInWBFM(setfreq)&&(!FreqInWBFM(Radio.Freq)))
	{
		Radio.MaxFreq=Area[Radio.Area].FMMaxFreqWB;
		Radio.MinFreq=Area[Radio.Area].FMMinFreqWB;
		Radio.Step=Area[Radio.Area].FMStepWB;
		Radio.SeekStep=Radio.Step;
	}

	Radio.Freq=setfreq;
	if(FreqInFM(Radio.Freq))
	{
		Radio.FMBand[FmIdx].BandFreq=Radio.Freq;
	}
	else
	{
		Radio.AMBand[AmIdx].BandFreq=Radio.Freq;
	}
	if(!RADIO_IN_PS)
	{
		if(FreqInFM(Radio.Freq))
		{
			for(i=0;i<6;i++)
			{
				if(Radio.Freq==Radio.FMBand[FmIdx].MemFreq[i])
				{
					Radio.FMBand[FmIdx].CurrentMem=i+1;
					break;
				}
				if(i==5)Radio.FMBand[FmIdx].CurrentMem=0;
			}
		}
		else
		{
			for(i=0;i<6;i++)
			{
				if(Radio.Freq==Radio.AMBand[AmIdx].MemFreq[i])
				{
					Radio.AMBand[AmIdx].CurrentMem=i+1;
					break;
				}
				if(i==5)Radio.AMBand[AmIdx].CurrentMem=0;
			}
		}
	}

	RDSDataInit();

	if(RDSDispMode!=RDSDISP_PTYSELECT&&RDSDispMode!=RDSDISP_TRAFFIC)
		RDSDispMode=RDSDISP_IDLE;
}

/*********************************************
	Function:		RadioFreqCal
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:22
*********************************************/
unsigned int  RadioFreqCal(unsigned char step)
{
	unsigned int inputfreq;
	if(Radio.Area==AREA_OIRT && FreqInFM(Radio.Freq))
	{
		if(Radio.Direction>0)
		{
			inputfreq=Radio.Freq+step;
			if(inputfreq>Area[AREA_OIRT].FMMaxFreqOirt && inputfreq<Area[AREA_OIRT].FMMinFreq)
				inputfreq=Area[AREA_OIRT].FMMinFreq;
			else if(inputfreq>Area[AREA_OIRT].FMMaxFreq)
				inputfreq=Area[AREA_OIRT].FMMinFreqOirt;
		}
		else
		{
			inputfreq=Radio.Freq-step;
			if(inputfreq>Area[AREA_OIRT].FMMaxFreqOirt && inputfreq<Area[AREA_OIRT].FMMinFreq)
				inputfreq=Area[AREA_OIRT].FMMaxFreqOirt;
			else if(inputfreq<Area[AREA_OIRT].FMMinFreqOirt)
				inputfreq=Area[AREA_OIRT].FMMaxFreq;
		}
	}
	else
	{
		if(Radio.Direction>0)
		{
			if(Radio.Freq%10==5 && FreqInFM(Radio.Freq)&&!FreqInWBFM(Radio.Freq))
				inputfreq=Radio.Freq+5;//avoid the frequency(87.55,89.55...) at first time 
			else
				inputfreq=Radio.Freq+step;
			if(inputfreq>Radio.MaxFreq)
				inputfreq=Radio.MinFreq;
		}
		else
		{
			if(Radio.Freq%10==5 && FreqInFM(Radio.Freq)&&!FreqInWBFM(Radio.Freq))
				inputfreq=Radio.Freq-5;
			else
				inputfreq=Radio.Freq-step;
			if(inputfreq<Radio.MinFreq)
				inputfreq=Radio.MaxFreq;
		}
	}
	return(inputfreq);
}

/*********************************************
	Function:		RadioSave
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:20
*********************************************/
void RadioSave(unsigned char pos)
{
	unsigned char i;
	if((Radio.WorkMode&0xF0)==RADIO_WORK_ASPSMODE)
		Radio.WorkMode=RADIO_WORK_ASPSBREAK;
	if(FreqInFM(Radio.Freq))
	{
		Radio.FMBand[FmIdx].CurrentMem=pos+1;
		Radio.FMBand[FmIdx].MemFreq[pos]=Radio.Freq;
	#ifdef D_STORE_DATA_IN_EEPROM
             EepromRadioBuff[FmIdx*15+14] = pos + 1;
	      EepromRadioBuff[FmIdx*15 + 2*pos] = (Radio.Freq >> 8)&0xff;
	      EepromRadioBuff[FmIdx*15 + 2*pos + 1] = Radio.Freq & 0xff;
	#endif
	
	}
	else
	{
		Radio.AMBand[AmIdx].CurrentMem=pos+1;
		Radio.AMBand[AmIdx].MemFreq[pos]=Radio.Freq;
	#ifdef D_STORE_DATA_IN_EEPROM
             EepromRadioBuff[(AmIdx+3)*15+14] = pos + 1;
	      EepromRadioBuff[(AmIdx+3)*15 + 2*pos] = (Radio.Freq >> 8)&0xff;
	      EepromRadioBuff[(AmIdx+3)*15 + 2*pos + 1] = Radio.Freq & 0xff;
	#endif
	

	}
	
	if(FreqInFM(Radio.Freq))
	{
		if(RDS.AFNum>1)
		{
			Radio.FMBand[FmIdx].PI[pos]=RDS.PIBackup;
			if(RDS.AFNum>8)
				Radio.FMBand[FmIdx].MemAFNum[pos]=8;
			else
				Radio.FMBand[FmIdx].MemAFNum[pos]=RDS.AFNum;
			for(i=0;i<8;i++)
				Radio.FMBand[FmIdx].MemAFList[pos][i]=RDS.AF[i];
		}		
		else
		{
			Radio.FMBand[FmIdx].MemAFNum[pos]=0;
			Radio.FMBand[FmIdx].PI[pos]=0;
		}
	}		
	Radio.F_TunerDispReq=1;
	RDSDispTimer=1;//fixed for RDS PS display by yete at Sep 20,2006
#ifdef D_STORE_DATA_IN_EEPROM
        for(i = 0; i < 75;i++){
   	  EepromByteWrite(EEPROM_ADDR,RADIO_FREQ_FM_POS+i, EepromRadioBuff[i]);
   	  Wait1ms(50);
   	}
#endif
}

/*********************************************
	Function:		RadioLoad
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:18
*********************************************/
void RadioLoad(unsigned char pos)
{
	unsigned char i;
	if((Radio.WorkMode&0xF0)==RADIO_WORK_ASPSMODE)
		Radio.WorkMode=RADIO_WORK_ASPSBREAK;
	RadioMute(SOFTON);
	if(FreqInFM(Radio.Freq))
	{
		RadioSetFreq(Radio.FMBand[FmIdx].MemFreq[pos]);
	}
	else
	{
		RadioSetFreq(Radio.AMBand[AmIdx].MemFreq[pos]);
	}
	RadioMute(SOFTOFF);
	if(FreqInFM(Radio.Freq))
	{
		Radio.FMBand[FmIdx].CurrentMem=pos+1;
	}
	else
	{
		Radio.AMBand[AmIdx].CurrentMem=pos+1;
	}
	if(RDS.F_AFEnable||RDS.F_TAEnable)
	{
		if(FreqInFM(Radio.Freq))
		{
			RDS.PI=Radio.FMBand[FmIdx].PI[pos];
			RDS.PIBackup=RDS.PI;
			RDS.AFNum=Radio.FMBand[FmIdx].MemAFNum[pos];
			for(i=0;i<8;i++)
				RDS.AF[i]=Radio.FMBand[FmIdx].MemAFList[pos][i];
			if(RDS.AFNum>1)
			{
				SetAFSearch();
			}
			if(RDS.PIBackup!=0)
			{
				RDS.PISeekTimer=PISeek10msTimer;
			}
		}
	}
	Radio.F_TunerDispReq=1;
}


#ifndef NOT_SAVE_BAND_AF
void RDSSaveBandAF(void)
{
	unsigned char i;

	if(FreqInFM(Radio.Freq))
	{
		if(RDS.AFNum>1)
		{
			Radio.FMBand[FmIdx].BandPI=RDS.PIBackup;
			if(RDS.AFNum>8)
				Radio.FMBand[FmIdx].BandAFNum=8;
			else
				Radio.FMBand[FmIdx].BandAFNum=RDS.AFNum;
			for(i=0;i<8;i++)
				Radio.FMBand[FmIdx].BandAFList[i]=RDS.AF[i];
		}		
		else
		{