radio.c

ST72321 control tuner(FST) and CD servo (STA1052).

	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;
	Radio.Band[Radio.CurrentBand].CurrentMem=pos+1;
	Radio.Band[Radio.CurrentBand].MemFreq[pos]=Radio.Freq;

	if(RDS.AFNum>1)
	{
		Radio.Band[Radio.CurrentBand].PI[pos]=RDS.PIBackup;
		if(RDS.AFNum>8)
			Radio.Band[Radio.CurrentBand].MemAFNum[pos]=8;
		else
			Radio.Band[Radio.CurrentBand].MemAFNum[pos]=RDS.AFNum;
		for(i=0;i<8;i++)
			Radio.Band[Radio.CurrentBand].MemAFList[pos][i]=RDS.AF[i];
		
	}
	else
	{
		Radio.Band[Radio.CurrentBand].MemAFNum[pos]=0;
		Radio.Band[Radio.CurrentBand].PI[pos]=0;
	}
		
	Radio.F_TunerDispReq=1;
	RDSDispTimer=1;//fixed for RDS PS display by yete at Sep 20,2006
}

/*********************************************
	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);
	RadioSetFreq(Radio.Band[Radio.CurrentBand].MemFreq[pos]);
	RadioMute(SOFTOFF);
	Radio.Band[Radio.CurrentBand].CurrentMem=pos+1;
	
	if(RDS.F_AFEnable||RDS.F_TAEnable)
	{
		RDS.PI=Radio.Band[Radio.CurrentBand].PI[pos];
		RDS.PIBackup=RDS.PI;
		RDS.AFNum=Radio.Band[Radio.CurrentBand].MemAFNum[pos];
		for(i=0;i<8;i++)
			RDS.AF[i]=Radio.Band[Radio.CurrentBand].MemAFList[pos][i];
		if(RDS.AFNum>1)
		{
			SetAFSearch();
		}
		if(RDS.PIBackup!=0)
		{
			RDS.PISeekTimer=600;
		}
	}
	Radio.F_TunerDispReq=1;
}

/*********************************************
	Function:		SeekOn
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:17
*********************************************/
void SeekOn(void)
{
#if TDA7540_TUNER
if(!Radio.F_TDA7541)
{
	//seek on (ISS time constant)
	Radio.TunerBuff[0] |= 0x80;	
	RadioTunerSend(0,0);
	// enable IFC
  	Radio.TunerBuff[5] |= 0x08;
   	RadioTunerSend(5,5);
	//adjust slider for seek
	SaveSmeterSlider=Radio.TunerBuff[18];
	if(FreqInFM(Radio.Freq)) 
	{	
		Radio.TunerBuff[18] &= y11000000;
		Radio.TunerBuff[18] += y00100000;
	} 
	else
	{	
		//AM short time constant
		//Radio.TunerBuff[7] |= 0x01;
	       //RadioTunerSend(7,7);
		Radio.TunerBuff[18] &= y11000000;
		//Radio.TunerBuff[18] += y00000011;
		Radio.TunerBuff[18] += y00101111;//KSE
	}
	RadioTunerSend(18,18);
	BreakAFCheck();
}
#endif

#if TDA7541_TUNER
if(Radio.F_TDA7541)
{
	//seek on (ISS time constant)
	Radio.TunerBuff[0] =(Radio.TunerBuff[0]&0x7f)|TDA7541_SEEK_ON;
	RadioTunerSend(0,0);
	//No enable/disable IFC in TDA7541
	//Set FSW offset to off, based on this to adjust seek sensitivity according customer spec.
	SaveFSWOffset=Radio.TunerBuff[16];
	Radio.TunerBuff[16]=(Radio.TunerBuff[16]&0x3f);//FSW offset off
	RadioTunerSend(16,16);
	BreakAFCheck();
}
#endif
}

/*********************************************
	Function:		SeekOff
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:15
*********************************************/
void SeekOff(void)
{
#if TDA7540_TUNER
if(!Radio.F_TDA7541)
{
	//seek off(ISS time constant)
	Radio.TunerBuff[0] &= 0x7F;
	RadioTunerSend(0,0);
	//Disable IFC
	Radio.TunerBuff[5] &= 0xf7;
   	RadioTunerSend(5,5);
	//Normal AGC time constant
	//Radio.TunerBuff[7] &= 0xFE;
	//RadioTunerSend(7,7);
	//Return back to original slider
	Radio.TunerBuff[18]=SaveSmeterSlider; 
	RadioTunerSend(18,18);
}
#endif
#if TDA7541_TUNER
if(Radio.F_TDA7541)
{
	//seek on (ISS time constant)
	Radio.TunerBuff[0] =(Radio.TunerBuff[0]&0x7f)|TDA7541_SEEK_OFF;
	RadioTunerSend(0,0);
	//No need to enable/disable IFC
	//HAVE TO return back to FSW offset because this related to radio performance.
	Radio.TunerBuff[16]=SaveFSWOffset; 
	RadioTunerSend(16,16);

	BreakAFCheck();
}
#endif

}

/*********************************************
	Function:		RadioMute
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:14
*********************************************/
void RadioMute(unsigned char type)
{
	//if(type==SOFTOFF)
		//AFSPin(1);
		
	AudioMute(type);
	
	//if(type==SOFTON)
	//{
		//Wait10us(100);
		//AFSPin(0);
	//}
	
}

/*********************************************
	Function:		PresetOrder
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:13
*********************************************/
void PresetOrder(void)
{
	unsigned char i,j;
	if(TempPresetNum<6)
	{
		Radio.Band[Radio.CurrentBand].MemFreq[TempPresetNum]=Radio.Freq;
		Radio.Band[Radio.CurrentBand].MemSmeter[TempPresetNum]=GetSMeter();
		if(RDS.F_AFEnable)
		{
			if(RDS.AFNum>1)
			{
				Radio.Band[Radio.CurrentBand].PI[TempPresetNum]=RDS.PI;
				if(RDS.AFNum>8)
					Radio.Band[Radio.CurrentBand].MemAFNum[TempPresetNum]=8;
				else
					Radio.Band[Radio.CurrentBand].MemAFNum[TempPresetNum]=RDS.AFNum;
				for(j=0;j<8;j++)
					Radio.Band[Radio.CurrentBand].MemAFList[TempPresetNum][j]=RDS.AF[j];
			}
			else
			{
				Radio.Band[Radio.CurrentBand].PI[TempPresetNum]=0;
				Radio.Band[Radio.CurrentBand].MemAFNum[TempPresetNum]=0;
			}
		}
		TempPresetNum++;
	}
	else
	{
		TempPresetSMMin=0xFF;
		for(i=0;i<6;i++)
		{
			if(TempPresetSMMin>Radio.Band[Radio.CurrentBand].MemSmeter[i])
			{
				TempPresetSMMin=Radio.Band[Radio.CurrentBand].MemSmeter[i];
				TempPresetSMMinNum=i;
			}
		}
		if(GetSMeter()>TempPresetSMMin)
		{
			for(i=TempPresetSMMinNum;i<5;i++)
			{
				Radio.Band[Radio.CurrentBand].MemFreq[i]=Radio.Band[Radio.CurrentBand].MemFreq[i+1];
				Radio.Band[Radio.CurrentBand].MemSmeter[i]=Radio.Band[Radio.CurrentBand].MemSmeter[i+1];
				if(RDS.F_AFEnable)
				{
					Radio.Band[Radio.CurrentBand].PI[i]=Radio.Band[Radio.CurrentBand].PI[i+1];
					Radio.Band[Radio.CurrentBand].MemAFNum[i]=Radio.Band[Radio.CurrentBand].MemAFNum[i+1];
					for(j=0;j<8;j++)
						Radio.Band[Radio.CurrentBand].MemAFList[i][j]=Radio.Band[Radio.CurrentBand].MemAFList[i+1][j];
				}
			}
			Radio.Band[Radio.CurrentBand].MemFreq[5]=Radio.Freq;
			Radio.Band[Radio.CurrentBand].MemSmeter[5]=GetSMeter();
			if(RDS.F_AFEnable)
			{
				if(RDS.AFNum>1)
				{
					Radio.Band[Radio.CurrentBand].PI[5]=RDS.PI;
					if(RDS.AFNum>8)
						Radio.Band[Radio.CurrentBand].MemAFNum[5]=8;
					else
						Radio.Band[Radio.CurrentBand].MemAFNum[5]=RDS.AFNum;
					for(j=0;j<8;j++)
						Radio.Band[Radio.CurrentBand].MemAFList[5][j]=RDS.AF[j];
				}
				else
				{
					Radio.Band[Radio.CurrentBand].PI[5]=0;
					Radio.Band[Radio.CurrentBand].MemAFNum[5]=0;
				}
			}
		}

	}
}
/*********************************************
	Function:		RadioTunerSend
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:11
*********************************************/
void RadioTunerSend(unsigned char start, unsigned char end)
{
	unsigned char i;
  	I2CStart ();
  	I2COut8Bit(0xC4);
  	if(start==end)
		I2COut8Bit(start);
	else
	{
		#if TDA7540_TUNER
		if(!Radio.F_TDA7541)
		{
			I2COut8Bit(start+0x40);
		}
		#endif
		#if TDA7541_TUNER//Page mode bit change: Yete June-22-2007
		if(Radio.F_TDA7541)
		{
			I2COut8Bit(start+0x20);
		}
		#endif
	}
	for (i=start;i<=end; i++)
		I2COut8Bit(Radio.TunerBuff[i]);
	I2CStop();
}

/*********************************************
	Function:		RadioTunerRead
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:10
*********************************************/
void RadioTunerRead(void)
{
  	I2CStart ();
  	I2COut8Bit(0xC5);
  	Radio.ReadBuff.byte=I2CIn8Bit();
	I2CNAck();
	I2CStop();
}

/*********************************************
	Function:		Radio_PLL_FMISet
	Description:	
	Write/Modify:	Yete
	Time:		2006-06-02
*********************************************/
unsigned char Radio_PLL_FMISet(unsigned int FMfreq)
{
#if TDA7540_TUNER
if(!Radio.F_TDA7541)
{
	if(FreqInOirtFM(FMfreq))//ORIT
	{
		if (FMfreq < FM67_0MHZ)
		{
			return (PLL_HICURRENT_2_5mA);
		}
		if (FMfreq < FM71_0MHZ)
		{
			return (PLL_HICURRENT_3MA);
		}
		return (PLL_HICURRENT_3_5mA);
	}
	else if(FreqInJapanFM(FMfreq))//Japan
	{
		if (FMfreq < FM80_0MHZ)
		{
			return (PLL_HICURRENT_1_5mA);
		}
		if (FMfreq < FM85_0MHZ)
		{
			return (PLL_HICURRENT_2MA);
		}
		return (PLL_HICURRENT_3MA);
	}
	if(FreqInWBFM(FMfreq))//Weather band
	{
		return (PLL_HICURRENT_0_5mA);
	}	
	else//Normal FM
	{
		if (FMfreq < FM94_5MHZ)
		{
			return (PLL_HICURRENT_1_5mA);
		}
		if (FMfreq < FM98_6MHZ)
		{
			return (PLL_HICURRENT_2_5mA);
		}
		if (FMfreq < FM106_9MHZ)
		{
			 return (PLL_HICURRENT_3MA);
		}
		return (PLL_HICURRENT_3_5mA);
	}	
}
#endif

#if TDA7541_TUNER
if(Radio.F_TDA7541)
{
	if(FreqInOirtFM(FMfreq))//ORIT
	{
		if (FMfreq < FM67_0MHZ)
		{
			return (TDA7541_PLL_HICURRENT_2_5mA);
		}
		if (FMfreq < FM71_0MHZ)
		{
			return (TDA7541_PLL_HICURRENT_3MA);
		}
		return (TDA7541_PLL_HICURRENT_3_5mA);
	}
	else if(FreqInJapanFM(FMfreq))//Japan
	{
		if (FMfreq < FM80_0MHZ)
		{
			return (TDA7541_PLL_HICURRENT_1_5mA);
		}
		if (FMfreq < FM85_0MHZ)
		{
			return (TDA7541_PLL_HICURRENT_2MA);
		}
		return (TDA7541_PLL_HICURRENT_3MA);
	}
	if(FreqInWBFM(FMfreq))//Weather band
	{
		return (TDA7541_PLL_HICURRENT_0_5mA);
	}	
	else//Normal FM
	{
		if (FMfreq < FM94_5MHZ)
		{
			return (TDA7541_PLL_HICURRENT_1_5mA);
		}
		if (FMfreq < FM98_6MHZ)
		{
			return (TDA7541_PLL_HICURRENT_2_5mA);
		}
		if (FMfreq < FM106_9MHZ)
		{
			 return (TDA7541_PLL_HICURRENT_3MA);
		}
		return (TDA7541_PLL_HICURRENT_3_5mA);
	}	
}
#endif

}

/*********************************************
	Function:		Radio_PLL_AMISet
	Description:	
	Write/Modify:	Yete
	Time:		2006-06-02
*********************************************/
unsigned char Radio_PLL_AMISet(unsigned int AMfreq)
{
#if TDA7540_TUNER
if(!Radio.F_TDA7541)
{

	if (AMfreq < AM530KHZ)//LW
	{
		return (PLL_HICURRENT_2MA);
	}
	if (AMfreq < AM999KHZ)//MW
	{
		return (PLL_HICURRENT_2_5mA);
	}
	if (AMfreq < AM1404KHZ)
	{
		return (PLL_HICURRENT_3MA);
	}
	return (PLL_HICURRENT_3_5mA);
}
#endif

#if TDA7541_TUNER
if(Radio.F_TDA7541)
{

	if (AMfreq < AM530KHZ)//LW
	{
		return (TDA7541_PLL_HICURRENT_2MA);
	}
	if (AMfreq < AM999KHZ)//MW
	{
		return (TDA7541_PLL_HICURRENT_2_5mA);
	}
	if (AMfreq < AM1404KHZ)
	{
		return (TDA7541_PLL_HICURRENT_3MA);
	}
	return (TDA7541_PLL_HICURRENT_3_5mA);
}
#endif

}

/*********************************************
	Function:		Radio10msTimer
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:09
*********************************************/
void Radio10msTimer(void)
{
	if(RadioWaitTimer>0)RadioWaitTimer--;
	if(RadioWorkTimer10ms>0)RadioWorkTimer10ms--;
	
}

/*********************************************
	Function:		Radio100msTimer
	Description:	
	Write/Modify:	Perry.Liang
	Time:		2006-1-24- 15:38:08
*********************************************/
void Radio100msTimer(void)
{
	if(RadioWorkTimer>0)RadioWorkTimer--;
	if(AFTAShowTimer>1)AFTAShowTimer--;
	if(SeekKeyTimer>0)SeekKeyTimer--;
	if(RadioSeekMuteTimer>0)RadioSeekMuteTimer--;
}

/*********************************************************
				File End
*********************************************************/