tvtuner.c

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#include "reg51.h"
#include "tvtune.h"
#include "global.h"

//***************************************************************************************
void Tv_Process_key(void)
{
	unsigned char _IR_Key0;
	
	 if(_fgIRKeyValid==TRUE)
	 {  
	 _fgIRKeyValid=FALSE;	
	 _IR_Key0=_IR_key;
	_IR_key=IR_NONE;
	 }	
	 else if(_fgVfdKeyValid==TRUE)
	 {
	 _fgVfdKeyValid=FALSE;	
	if(player_status==PLAYER_STATUS_DVD)
	  	Send_Key_To_IR();
	 _IR_Key0=_VFD_Key;
	 _VFD_Key=IR_NONE;
	 }		
	else
		return;
	
	if( (player_status==PLAYER_STATUS_DVD||player_status==PLAYER_STATUS_VIDEO_INPUT)
	&&(_IR_Key0!=IR_TV_DVD && _IR_Key0!=IR_TV_POWER ) )
		  return ;
	switch(_IR_Key0)
	{
		case IR_NUM0 :
		case IR_NUM1 :
		case IR_NUM2 :
		case IR_NUM3 :
		case IR_NUM4 :
		case IR_NUM5 :
		case IR_NUM6 :
		case IR_NUM7 :
		case IR_NUM8 :
		case IR_NUM9 :
			Proc_Key_Digit_Key(_IR_Key0);
			_IR_Key0=IR_NONE;
			break;
		case IR_TV_SEARCH :
			player_status=PLAYER_STATUS_TV_SEARCH;
			Proc_Key_Tv_Search();
			_IR_Key0=IR_NONE;
			break;
		 case IR_TV_DVD:
		 	Proc_Key_Tv_Dvd();
		 	_IR_Key0=IR_NONE;
			break;
		case IR_TV_POWER:
		 	Proc_Key_Power();
		 	_IR_Key0=IR_NONE;
			break;
			
		case IR_NEXT_CH:
			Proc_Key_Next_Ch();
			_IR_Key0=IR_NONE;
		 	break;
		 case IR_PREV_CH:
		 	Proc_Key_Prev_Ch();
		 	_IR_Key0=IR_NONE;
		 	break;
		case IR_DISPLAY:
			Proc_Key_Display();
		 	break;			
		 case IR_TV_MENU:
			Proc_Key_Tv_Menu();
		 	break;				
		 case IR_TV_SEARCH_RETURN:
		 	Proc_Key_Tv_Search_Return();
		 	break;	
		default:
			
			break;		 
		_IR_Key0=IR_NONE;	
	}
	
}
//***************************************************************************************
void Proc_Key_Digit_Key(unsigned char Key)
{
	if(player_status==PLAYER_STATUS_TVPLAYING)
			{
				
				M35055_Display_line(0,DISP_OSD_HYPHEN);
				M35055_Display_a_char(CHANNEL_NUM1_POS,num_digit[Key]);
				player_status=PLAYER_STATUS_TV_SELECT_0;
				Channel_Num.num0=Key;
				Channel_Num.num1=0;
			}
			else if(player_status==PLAYER_STATUS_TV_SELECT_0)	
			{	
				if(Channel_Num.num0>6||(Channel_Num.num0==0&&Key<2))
				{
					player_status=PLAYER_STATUS_TVPLAYING;
					Channel_Num.num0=0;
					f_osd_displaying=0;
					f_osd_ch_displaying=0;
					Clear_All_Osd();
				 return ;
				}
				player_status=PLAYER_STATUS_TV_SELECT_1;
				
				Channel_Num.num1=Channel_Num.num0;
				Channel_Num.num0=Key;
				M35055_Display_a_char(CHANNEL_NUM1_POS,num_digit[Channel_Num.num1]);
				M35055_Display_a_char(CHANNEL_NUM0_POS,num_digit[Key]);
			}		
			f_osd_displaying=1;
			if(player_status==PLAYER_STATUS_TV_SELECT_1)
			{
			f_timer_2s_ch=1;
			timer1_counter_ch=200;
			player_status=PLAYER_STATUS_TVPLAYING;
			}
			else
			{
				f_timer_2s_ch=0;
			timer1_counter_ch=0;
			}
			
}
//***************************************************************************************
void Proc_Key_Tv_Dvd()
{
		if(player_status==PLAYER_STATUS_DVD)
		 	{
				Read24c02(&cur_ch_num,CURRENT_CHANNEL_NUM_ADDR,1);
				Read24c02(&total_ch_num,TOTAL_CHANNEL_NUM_ADDR,1);
				Read24c02(&vhfl_ch_num,VHFL_CHANNEL_NUM_ADDR,1);
				Read24c02(&vhfh_ch_num,VHFH_CHANNEL_NUM_ADDR,1);
				Read24c02(&uhf_ch_num,UHF_CHANNEL_NUM_ADDR,1);

				Clear_All_Osd();	
				f_osd_displaying=0;
				f_timer_2s_ch=0;	 		
		 		M35055_Display_line(0,DISP_OSD_CAAV);
		 		Sub_Set_Channel();	
		 		player_status=PLAYER_STATUS_TVPLAYING;
		 		Video_Output_TV_SW();
		 		
		 	}	
		 	else if(player_status>PLAYER_STATUS_DVD&&player_status<PLAYER_STATUS_VIDEO_INPUT)	
		 	{
		 		player_status=PLAYER_STATUS_VIDEO_INPUT;
		 		Clear_All_Osd();
		 		Video_Output_Input_SW();
		 		f_osd_ch_displaying=1;
				f_timer_2s_ch=0;	 		
		 		M35055_Display_line(0,DISP_OSD_VIDEO_INPUT);
		 		timer1_counter=0; //BEGION TO SEARCH INPUTVIDEO EXIST OR NOT ALL TIME!
				f_timer_2s=0;
		 	}
		 	else if(player_status==PLAYER_STATUS_VIDEO_INPUT)	
		 	{
				Clear_All_Osd();		 	
				Send_CR_Set(0);	
				Video_Output_DVD_SW();		
				player_status=PLAYER_STATUS_DVD;
		 	}
}
//***************************************************************************************
void Dvd_Resume_delay(unsigned char times)
{
	unsigned char i;
	EA=0;
	for(i=0;i<times;i++)
		DelayMs(100);DelayMs(100);
	EA=1;	
}
void Proc_Key_Power()
{
	if(POWER_CTRL_PIN==0)
	{
		PIN_MUTE1=1;//MUTE ON

		POWER_RESUME_KEY_PIN=0;//for dvd resume
		Write24c02(&player_status,PLAYER_STATUS_ADDR,1);
		P3=P3&0x1f;
		Dvd_Resume_delay(150);
		POWER_CTRL_PIN=1;
		P1=P1&0x8F;
	}	
	else if(POWER_CTRL_PIN==1)
	{
		U1369_RESET_PIN=1;
		POWER_CTRL_PIN=0;
		DelayMs(100);DelayMs(100);
		Read24c02(&player_status,PLAYER_STATUS_ADDR,1);
		if(player_status==PLAYER_STATUS_DVD)
			player_status=PLAYER_STATUS_VIDEO_INPUT;
		else if(player_status>PLAYER_STATUS_DVD&&player_status<PLAYER_STATUS_VIDEO_INPUT)
			player_status=PLAYER_STATUS_DVD;
		else if(player_status==PLAYER_STATUS_VIDEO_INPUT)
			player_status=PLAYER_STATUS_TVPLAYING;
		else
			player_status=PLAYER_STATUS_VIDEO_INPUT;
		 _fgIRKeyValid=TRUE;
	 	_IR_key=IR_TV_DVD;
	 	POWER_RESUME_KEY_PIN=1;
	 	m35055_init();
		VFD_init();
	 	
	}	
	
}
void Process_Tv_Osd(void)
{
	bit f_inputvideo_exist=0;
	if(player_status==PLAYER_STATUS_DVD)return ;	
	if(player_status==PLAYER_STATUS_VIDEO_INPUT)
	{//1
	while(f_timer_2s==0){ if(TV_VIDEO_EXIST==1)f_inputvideo_exist=1;}
	if(f_timer_2s==1)
	{
	timer1_counter=50;
	f_timer_2s=0;	
	if(f_inputvideo_exist!=f_last_videoinput)
	{
		if(f_inputvideo_exist)
		{
		Send_CR_Set(0);
		
		f_last_videoinput=1;
		}	
		else
		{
		f_last_videoinput=0;	
		Send_CR_Set(1);
		
		}	
		f_osd_ch_displaying=1;
		f_timer_2s_ch=0;	
		M35055_Display_line(0,DISP_OSD_VIDEO_INPUT);
	}
	}
	}//1	
	if((f_osd_ch_displaying==1||f_osd_displaying==1)&&f_timer_2s_ch==2)
	{
		Clear_All_Osd();
		if(f_osd_ch_displaying==1)
		{
			f_osd_ch_displaying=0;
		}
		if(f_osd_displaying==1)
		{
		f_osd_displaying=0;
		player_status=PLAYER_STATUS_TVPLAYING;
		if(Proc_Digit_Input_Tv_Channel()==0)
		{
			M35055_Display_line(0,DISP_OSD_ERROR);
			f_osd_displaying=1;
			f_timer_2s_ch=0;
			timer1_counter_ch=0;	
		}	
		Channel_Num.num0=0x0;
		Channel_Num.num1=0x0;
		Channel_Num.num2=0x0;
		}
		
	}
	
}
//***************************************************************************************
void Proc_Key_Tv_Search_Return()
{
	player_status=PLAYER_STATUS_TVPLAYING;
	PIN_MUTE2=0;
	Send_CR_Set(0);
	Clear_All_Osd();
	Sub_Set_Channel();
	if(_IR_key==IR_TV_POWER||_VFD_Key==IR_TV_POWER)
	Proc_Key_Power();
	_IR_key=IR_NONE;
	_VFD_Key=IR_NONE;
}
//***************************************************************************************
void Proc_Key_Tv_Search()
{
	unsigned char Search_ch_num=0;
	unsigned char first_valid_ch=1;
	unsigned int  ch_freq;
	unsigned char temp0=0;
	bit   f_first_ch=0;
	bit  f_video_exist=0;
	total_ch_num=0;
	first_valid_ch=cur_ch_num;
	PIN_MUTE1=1;//MUTE ON
//init eprom	
	Write24c02(&total_ch_num,TOTAL_CHANNEL_NUM_ADDR,1);
//***********************************************************	
	Send_CR_Set(1);
	Clear_All_Osd();
	M35055_Display_line(6,DISP_OSD_AUTO_SEARCH);
	M35055_Display_line(7,DISP_OSD_SEARCHING);
	for(Search_ch_num=0;Search_ch_num<VHF_L_BAND_LENGTH;Search_ch_num++)
	{
			f_video_exist=0;
			ch_freq=Wireless_Tv_channel_tbl[Search_ch_num];
			Write_Tv_tune(ch_freq,0);//a0
			timer1_counter=0;
			f_timer_2s=0;
		
			while(f_timer_2s==0){; if(timer1_counter>60&&TV_VIDEO_EXIST==1)f_video_exist=1;}
//*****************************************************************
			Sub_Display_Searching_bar(1,Search_ch_num);
//*****************************************************************
			if(f_video_exist==1)
			{
			total_ch_num++;
			if(first_valid_ch==cur_ch_num&&Search_ch_num>0&&f_first_ch==0)
			{
				first_valid_ch=Search_ch_num;
				if(first_valid_ch==1&&cur_ch_num==1)f_first_ch=1;
			}	
			Write24c02(&Search_ch_num,(Search_ch_num+FIRST_CHANNEL_FREQ),1);
			}
			else
			Write24c02(&val_zero,(Search_ch_num+FIRST_CHANNEL_FREQ),1);
			
			Write24c02(&total_ch_num,TOTAL_CHANNEL_NUM_ADDR,1);
			Player_Power_On_Off();
			if(_IR_key==IR_TV_SEARCH||_IR_key==IR_TV_POWER||_VFD_Key==IR_TV_POWER) {
				cur_ch_num=first_valid_ch;
				Proc_Key_Tv_Search_Return();
					return;
				}
	}	
	for(Search_ch_num=0;Search_ch_num<VHF_H_BAND_LENGTH;Search_ch_num++)	
	{
			f_video_exist=0;
			ch_freq=Wireless_Tv_channel_tbl[Search_ch_num+VHF_L_BAND_LENGTH];
			Write_Tv_tune(ch_freq,1);//90
			timer1_counter=0;
			f_timer_2s=0;
			while(f_timer_2s==0){; if(timer1_counter>60&&TV_VIDEO_EXIST==1)f_video_exist=1;}
//*****************************************************************
			Sub_Display_Searching_bar(2,Search_ch_num);
//*****************************************************************
			temp0=Search_ch_num+VHF_L_BAND_LENGTH;
			if(f_video_exist==1)
			{
			
			if(first_valid_ch==cur_ch_num&&f_first_ch==0)
			{
				f_first_ch=1;
				first_valid_ch=Search_ch_num+VHF_L_BAND_LENGTH;
			}	
			total_ch_num++;
			Write24c02(&temp0,(temp0+FIRST_CHANNEL_FREQ),1);
			}
			else
			Write24c02(&val_zero,(temp0+FIRST_CHANNEL_FREQ),1);
			
			Write24c02(&total_ch_num,TOTAL_CHANNEL_NUM_ADDR,1);
			Player_Power_On_Off();
			if(_IR_key==IR_TV_SEARCH||_IR_key==IR_TV_POWER||_VFD_Key==IR_TV_POWER) {
				cur_ch_num=first_valid_ch;
				Proc_Key_Tv_Search_Return();
					return;
				}
	}	

	for(Search_ch_num=0;Search_ch_num<UHF_BAND_LENGTH;Search_ch_num++)		
	{ 
			f_video_exist=0;
			ch_freq=Wireless_Tv_channel_tbl[Search_ch_num+VHF_L_BAND_LENGTH+VHF_H_BAND_LENGTH];
		
			Write_Tv_tune(ch_freq,2);//30
			timer1_counter=0;
			f_timer_2s=0;
			while(f_timer_2s==0){ if(timer1_counter>60&&TV_VIDEO_EXIST==1)f_video_exist=1;}
//*********************************************************		
			Sub_Display_Searching_bar(3,Search_ch_num);
//*****************************************************************
			temp0=Search_ch_num+VHF_L_BAND_LENGTH+VHF_H_BAND_LENGTH;
			if(f_video_exist==1)
			{
			if(first_valid_ch==cur_ch_num&&f_first_ch==0)
			{
				first_valid_ch=Search_ch_num+VHF_L_BAND_LENGTH+VHF_H_BAND_LENGTH;	
				f_first_ch=1;
			}	
			total_ch_num++;
			Write24c02(&temp0,(temp0+FIRST_CHANNEL_FREQ),1);
			}
			else
			Write24c02(&val_zero,(temp0+FIRST_CHANNEL_FREQ),1);
			
			Write24c02(&total_ch_num,TOTAL_CHANNEL_NUM_ADDR,1);