#include <stdio.h>
#include "SN761662Tuner.h"
#include "IicComm.h"


int TunerSN761662SendChannel(unsigned int uiChannel, CHANNEL_TABLE_TYPE iChannelTable, TYPE_SN761662TUNER_REF_DIVIDER_RATIO iRefDividerRatio,TYPE_SN761662TUNER_ATC iATC, TYPE_SN761662TUNER_CP iCP,TYPE_SN761662TUNER_IFOSW iIFOSW,TYPE_SN761662TUNER_AGC_TOP_LEVEL_0_LEVEL_1 iAGCTop, TYPE_SN761662TUNER_RFAGC_SHIFT_XTALOUT_CONTROL iRFAGCShiftXtalOut)
{
	unsigned long ulFrequency = TunerSN761662GetFrequency(uiChannel,iChannelTable);
	if(0 == ulFrequency)
		return SN761662_CHANNEL_DOES_NOT_FIT_ANY_FREQUENCY;

	return TunerSN761662SendFreq(ulFrequency, iRefDividerRatio, iATC, iCP, iIFOSW, iAGCTop, iRFAGCShiftXtalOut); 


}


int TunerSN761662SendFreq(unsigned long ulFrequency, TYPE_SN761662TUNER_REF_DIVIDER_RATIO iRefDividerRatio,TYPE_SN761662TUNER_ATC iATC, TYPE_SN761662TUNER_CP iCP,TYPE_SN761662TUNER_IFOSW iIFOSW,TYPE_SN761662TUNER_AGC_TOP_LEVEL_0_LEVEL_1 iAGCTop, TYPE_SN761662TUNER_RFAGC_SHIFT_XTALOUT_CONTROL iRFAGCShiftXtalOut)
{
	int iMult;
	unsigned char ucaBytesToSend[5];
	unsigned short usTmp;
	int iBand;
	ucaBytesToSend[0] = 0;
	ucaBytesToSend[1] = 0;
	ucaBytesToSend[2] = 0x80;
	ucaBytesToSend[3] = 0xCC;
	ucaBytesToSend[4] = 0xC0;
	
	if(iRefDividerRatio < SN761662TUNER_REF_DIVIDER_RATIO_24 || iRefDividerRatio > SN761662TUNER_REF_DIVIDER_RATIO_80)
		return SN761662_INCORRECT_REF_DIVIDER_RATIO;

	if(iIFOSW != TYPE_SN761662TUNER_IFOSW_IFOUT1_ENABLE_IFOUT2_DISABLE && iIFOSW != TYPE_SN761662TUNER_IFOSW_IFOUT1_DISABLE_IFOUT2_ENABLE)
		return SN761662_INCORRECT_IFOSW;

	if(iRFAGCShiftXtalOut < TYPE_SN761662TUNER_RFAGC_SHIFT_XTALOUT_CONTROL_IFOUT_0_OUTPUT_ENABLE || iRFAGCShiftXtalOut > TYPE_SN761662TUNER_RFAGC_SHIFT_XTALOUT_CONTROL_IFOUT_1_OUTPUT_DISABLE)
		return SN761662_INCORRECT_RFAGC_SHIFT_XTALOUT_CONTROL;

	switch(iRefDividerRatio){
	case SN761662TUNER_REF_DIVIDER_RATIO_24:
		iMult = 24;
		break;
	case SN761662TUNER_REF_DIVIDER_RATIO_28:
		iMult = 28;
		break;
	case SN761662TUNER_REF_DIVIDER_RATIO_50:
		iMult = 50;
		break;
	case SN761662TUNER_REF_DIVIDER_RATIO_64:
		iMult = 64;
		break;
	case SN761662TUNER_REF_DIVIDER_RATIO_128:
		iMult = 128;
		break;
	case SN761662TUNER_REF_DIVIDER_RATIO_80:
		iMult = 80;
		break;
	}
	usTmp = (unsigned short)((ulFrequency + 44000)* iMult / 4000);
	if (usTmp == 0 || usTmp >= SN761662_N_MAX) { //15 bits
        return SN761662_FREQUENCY_VALUE_OUT_OF_RANGE;
    }
	ucaBytesToSend[0] = usTmp >> 8;
	ucaBytesToSend[1] = usTmp & 0xff;
	
	//ATC
	if(iATC == 0)
		ucaBytesToSend[4] &= ~0x20; 
	else if(iATC == 1)
		ucaBytesToSend[4] |= 0x20; 
	else
		return SN761662_INCORRECT_ATC;
	//CP
	//first set bits 6,7 to 0
	ucaBytesToSend[3] &= ~0xC0; 
	ucaBytesToSend[3] |= (iCP << 6);

	//BS
	ucaBytesToSend[3] &= ~0x0F; 
	
	if(ulFrequency > 54000 && ulFrequency <= 174000)
		iBand = 0x01;
	else if(ulFrequency > 174000 && ulFrequency <= 468000)
		iBand = 0x02;
	else if(ulFrequency > 468000 && ulFrequency <= 864000)
		iBand = 0x08;
	else
		iBand = 0x03;

	ucaBytesToSend[3] |= iBand;
	
	ucaBytesToSend[3] |= (iIFOSW << 5);

	ucaBytesToSend[2] |= (iAGCTop << 3); 
	ucaBytesToSend[2] |= iRefDividerRatio; 

	ucaBytesToSend[4] |= iRFAGCShiftXtalOut;


	//open 2nd IIC channel	
	if( !TunerSN761662BeforeSendBytes())
		return SN761662_BEFORE_SEND_BYTES_FAILED;

	if (IicTransmit((unsigned char)SN761662_DEVICE_ADDRESS_WRITE, ucaBytesToSend, 5)) {
		return SN761662_SEND_CONTROL_DATA_FAILED;
	}

	//close 2nd IIC channel	
	if( !TunerSN761662AfterSendBytes())
		return SN761662_AFTER_SEND_BYTES_FAILED;
	else
		return SN761662_SUCCESS;

	//return TRUE;

}


int TunerSN761662SendPicCarrier(unsigned long ulFrequency, TYPE_SN761662TUNER_REF_DIVIDER_RATIO iRefDividerRatio,TYPE_SN761662TUNER_ATC iATC, TYPE_SN761662TUNER_CP iCP,TYPE_SN761662TUNER_IFOSW iIFOSW,TYPE_SN761662TUNER_AGC_TOP_LEVEL_0_LEVEL_1 iAGCTop, TYPE_SN761662TUNER_RFAGC_SHIFT_XTALOUT_CONTROL iRFAGCShiftXtalOut)
{
	return TunerSN761662SendFreq(ulFrequency + 1750, iRefDividerRatio, iATC, iCP, iIFOSW, iAGCTop, iRFAGCShiftXtalOut);  
}

BOOLEAN TunerSN761662BeforeSendBytes()
{
	if(IIC_COM_SUCCESS != SendHostControl(0, 0))
		return FALSE;
	else
		return TRUE;
}

BOOLEAN TunerSN761662AfterSendBytes()
{
	if(IIC_COM_SUCCESS != SendHostControl(0x80, 0))
		return FALSE;
	else
		return TRUE;
}


unsigned long TunerSN761662GetFrequency(unsigned int uiChannelNumber,CHANNEL_TABLE_TYPE iChannelTable)
{
	unsigned long ulFrequency = 0;

	if(0 ==  iChannelTable){//terrestrial
		if ((uiChannelNumber >= 2) && (uiChannelNumber <= 6)) {
			switch (uiChannelNumber) {
				case 2:
					ulFrequency = 57;
					break;
				case 3:
					ulFrequency = 63;
					break;
				case 4:
					ulFrequency = 69;
					break;
				case 5:
					ulFrequency = 79;
					break;
				case 6:
					ulFrequency = 85;
					break;
			}
		}
		else if ((uiChannelNumber >= 7) && (uiChannelNumber <= 13)) {
			ulFrequency = 174 + ((uiChannelNumber - 7) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 14) && (uiChannelNumber <= 69)) {
			ulFrequency = 470 + ((uiChannelNumber - 14) * 6) + 3; 
		}
		
		return ulFrequency * 1000;
	}	
	else if(1 ==  iChannelTable){//CATV
		if ((uiChannelNumber >= 1) && (uiChannelNumber <= 6)) {
			switch (uiChannelNumber) {
				case 1:
					ulFrequency = 75;
					break;
				case 2:
					ulFrequency = 57;
					break;
				case 3:
					ulFrequency = 63;
					break;
				case 4:
					ulFrequency = 69;
					break;
				case 5:
					ulFrequency = 79;
					break;
				case 6:
					ulFrequency = 85;
					break;
			}
		}
		else if ((uiChannelNumber >= 95) && (uiChannelNumber <= 99)) {
			ulFrequency = 90 + ((uiChannelNumber - 95) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 7) && (uiChannelNumber <= 13)) {
			ulFrequency = 174 + ((uiChannelNumber - 7) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 14) && (uiChannelNumber <= 22)) {
			ulFrequency = 120 + ((uiChannelNumber - 14) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 23) && (uiChannelNumber <= 94)) {
			ulFrequency = 216 + ((uiChannelNumber - 23) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 100) && (uiChannelNumber <= 135)) {
			ulFrequency = 648 + ((uiChannelNumber - 100) * 6) + 3; 
		}

		return ulFrequency * 1000;
	}
	else if(2 ==  iChannelTable){//IRC
		if ((uiChannelNumber >= 1) && (uiChannelNumber <= 6)) {
			switch (uiChannelNumber) {
				case 1:
					ulFrequency = 75;
					break;
				case 2:
					ulFrequency = 57;
					break;
				case 3:
					ulFrequency = 63;
					break;
				case 4:
					ulFrequency = 69;
					break;
				case 5:
					ulFrequency = 81;
					break;
				case 6:
					ulFrequency = 87;
					break;
			}
		}
		else if ((uiChannelNumber >= 95) && (uiChannelNumber <= 99)) {
			ulFrequency = 90 + ((uiChannelNumber - 95) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 7) && (uiChannelNumber <= 13)) {
			ulFrequency = 174+ ((uiChannelNumber - 7) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 14) && (uiChannelNumber <= 22)) {
			ulFrequency = 120 + ((uiChannelNumber - 14) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 23) && (uiChannelNumber <= 94)) {
			ulFrequency = 216 + ((uiChannelNumber - 23) * 6) + 3; 
		}
		else if ((uiChannelNumber >= 100) && (uiChannelNumber <= 135)) {
			ulFrequency = 648 + ((uiChannelNumber - 100) * 6) + 3; 
		}

		return ulFrequency * 1000;
	}
	else if(3 ==  iChannelTable){//HRC
		if ((uiChannelNumber >= 1) && (uiChannelNumber <= 6)) {
			switch (uiChannelNumber) {
				case 1:
					ulFrequency = 75000;
					break;
				case 2:
					ulFrequency = 55753;
					break;
				case 3:
					ulFrequency = 61753;
					break;
				case 4:
					ulFrequency = 66753;
					break;
				case 5:
					ulFrequency = 79754;
					break;
				case 6:
					ulFrequency = 85754;
					break;
			}
		}
		else if ((uiChannelNumber >= 95) && (uiChannelNumber <= 99)) {
			ulFrequency = (917545 + ((uiChannelNumber - 95) * 60003))/10; 
		}
		else if ((uiChannelNumber >= 7) && (uiChannelNumber <= 13)) {
			ulFrequency = (1757587 + ((uiChannelNumber - 7) * 60003))/10; 
		}
		else if ((uiChannelNumber >= 14) && (uiChannelNumber <= 22)) {
			ulFrequency = (1217560 + ((uiChannelNumber - 14) * 60003))/10; 
		}
		else if ((uiChannelNumber >= 23) && (uiChannelNumber <= 94)) {
			ulFrequency = (2177608 + ((uiChannelNumber - 23) * 60003))/10; 
		}
		else if ((uiChannelNumber >= 100) && (uiChannelNumber <= 135)) {
			ulFrequency = (6497824 + ((uiChannelNumber - 100) * 60003))/10; 
		}
		return ulFrequency ;
	}
	else
		return 0;

}