?? irint.c
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//#ifdef INTERRUPT1
#include "reg51.h"
#include "Common.h"
#include "Remote.h"
#include "struct.h"
#include "system.h"
#include "KEYPAD.H"
#include "OSDDraw.h"
#include "TwoWire.h"
#include "intrins.h"
extern bit ir_enable;
extern uCHAR ir_data;
//extern uWORD count1;
uCHAR ir_repeat;
bit Filter13(bit le)
{
bit r;
r=INT1;
if(le==1)
{
_nop_();
_nop_();
_nop_();
r&=INT1;
_nop_();
_nop_();
_nop_();
r&=INT1;
}
else
{
_nop_();
_nop_();
_nop_();
r|=INT1;
_nop_();
_nop_();
_nop_();
r|=INT1;
}
if(r==le)
return 1;
else
return 0;
}
/*遙控接收在此中斷程序內完成
數據放在ir_data內*/
/************************************/
/* Interrupt for IR subroutine */
/* external interrupt source INT0 */
/************************************/
void int1Remote(void) interrupt 2
{
register BYTE i;
unsigned int count; /*計時變量*/
unsigned int temp0,temp1,ir_code=0;
ir_enable=TRUE;
TMOD=0x11; /*timer 0 operate in 16 bit mode*/
EX1=0;
TL0=0;
TH0=0;
TR0=1;
/************************************/
/* Detect IR Head */
/************************************/
do /*Detect IR head 9mS*/
{
count=(TL0+TH0*256); /*count :us unit */
if(Filter13(1)==1) break;
}while(count<=(IR_HEAD+DELTA));
TR0=0; /*停止計時*/
if(Filter13(0)==1||count<(IR_HEAD-DELTA*25)) /*for some noise disturb IR*/
{
ir_enable=FALSE; /* no IR head or not suitable for Ir head*/
EX1=1;
TR0=1;
return;
}
/************************************/
/* Detect OFF CODE 4.5mS */
/************************************/
while(Filter13(0)==1);
TR0=0;
TL0=0;
TH0=0;
TR0=1;
do /*Detect IR OFF CODE*/
{
count=(TL0+TH0*256); /*count :us unit */
if(Filter13(0)==1) break;
}while(count<(OFF_CODE+DELTA));
TR0=0;
count=(TL0+TH0*256); /*count :us unit */
if(count<=(OFF_CODE-DELTA*2))
{
/*重復碼OFF=2.25*/
if((count>(OFF_REP-DELTA)&&count<(OFF_REP+DELTA)))
{
TR0=0;
TL0=0;
TH0=0;
TR0=1;
do
{
count=(TL0+TH0*256); /*count :us unit */
if(Filter13(1)==1) break;
}while(count<=(REP_CODE+DELTA));
TR0=0;
count=(TL0+TH0*256); /*count :us unit */
if(INT1==1)
{
TR0=0;
if(
ir_data==REMOTE_KEY_DECR||ir_data==REMOTE_KEY_INCR)
{
ir_enable=TRUE; /*注意：ir_data不變*/
EX1=0;
}
else
{
ir_data=0;
ir_enable=FALSE;
EX1=1;
TR0=1;
}
return;
}
}
else
{
ir_enable=FALSE; /*not suitable for off code*/
EX1=1;
TR0=1;
return;
}
}
/************************************/
/* Detect 16 bit address code */
/************************************/
if(ir_enable==TRUE)
{
TMOD=0x11; /*counter start with INT0 and TR0*/
ir_code=0; /*初始化變量*/
for(i=0;i<16;i++)
{
while(INT1==0);
TL0=0;
TH0=0;
TR0=1;
do
{
count=(TL0+TH0*256); /*count :us unit */
if(Filter13(0)==1) break;
}while(count<=(CODE_1_TIME+DELTA)); /*INT0為高電平時計時*/
TR0=0;
ir_code<<=1;
if((count>(CODE_1_TIME-DELTA))&&(count<=(CODE_1_TIME+DELTA))) /*detect 1 code 2.24mS-0.56mS=1.68mS*/
ir_code++;
else if((count>(CODE_0_TIME-DELTA))&&(count<=(CODE_0_TIME+DELTA))); /*detect 0 code 1.12mS-0.56mS=0.56mS*/
else
{
ir_enable=FALSE;
TR0=1;
break; /*not suitable for address code */
}
} /*end for*/
}
/************************************/
/* Detect 16 bit data code */
/************************************/
if(ir_enable==TRUE&&ir_code==IR_SYSTEM_CODE)/**/
{
TMOD=0x11; /*counter start with INT0 and TR0*/
ir_code=0;
for(i=0;i<16;i++)
{
while(INT1==0);
TH0=0;
TR0=1;
do
{
count=(TL0+TH0*256);
if(Filter13(0)==1) break;
}while(count<=(CODE_1_TIME+DELTA)); /*INT0為高電平時計時*/
TR0=0;
//count=(TL0+TH0*256); /*count :us unit */
ir_code<<=1;
if((count>(CODE_1_TIME-DELTA))&&(count<=(CODE_1_TIME+DELTA))) /*detect 1 code 1.68mS*/
ir_code++;
else if((count>(CODE_0_TIME-DELTA)&&count<=(CODE_0_TIME+DELTA))); /*detect 0 code 0.56mS*/
else
{
TR0=1;
break; /*not suitable for address code */
}
} /*end for*/
if(ir_enable==TRUE)
{
temp0=ir_code&0xff00;
temp0=~temp0;
temp0>>=8;
temp1=ir_code&0x00ff;
if(temp0!=temp1)
ir_enable=FALSE;
else
{
ir_data=(BYTE)(temp1); /*true code effective*/
ir_enable=TRUE; /*set ir flag*/
EX1=0;
return;
}
}
}
else
{ ir_enable=FALSE;
EX1=1;}
}
void RemoteEvent(void)
{
bit bTemp=0;
switch(ir_data){
case REMOTE_KEY_POWER: bTemp=kyPOWEREvent(); break;
case REMOTE_KEY_SOURCE: IRSourceSelKeyCtrl(); break;
case REMOTE_KEY_DISPLAY:IRNTSC_PALCtrl(); break;
case REMOTE_KEY_DECR: bTemp=kyDECREASEEvent(); break;
case REMOTE_KEY_INCR: bTemp=kyINCREASEEvent(); break;
//Ruby 2004-06-07 case REMOTE_KEY_OK: OSDExit(); break;
case REMOTE_KEY_MENU: bTemp=kyMENUEvent(); break;
case REMOTE_KEY_SCALER : kySCALEREvent(); break;
case REMOTE_KEY_VO_INC: kySCALEREvent(); break;//bTemp=IRVolUpKeyCtrl(); break;
case REMOTE_KEY_VO_DEC: bTemp=IRVolDownKeyCtrl(); break;
case REMOTE_KEY_DEC_P: bTemp=IRDownKeyCtrl(); break;
case REMOTE_KEY_INC_P: bTemp=IRUpKeyCtrl(); break;
#ifdef ROTATE
case REMOTE_KEY_AIRCABLE: kyDismodeEvent(); break;
#endif
#ifdef TV
// case REMOTE_KEY_MUTE: bTemp=IRSetupKeyCtrl(); break;
// case REMOTE_KEY_DEC_P: bTemp=IRDownKeyCtrl(); break;
// case REMOTE_KEY_INC_P: bTemp=IRUpKeyCtrl();break;
case REMOTE_KEY_NUM0: IRNumKeyCtrl(0); break;
case REMOTE_KEY_NUM1: IRNumKeyCtrl(1); break;
case REMOTE_KEY_NUM2: IRNumKeyCtrl(2); break;
case REMOTE_KEY_NUM3: IRNumKeyCtrl(3); break;
case REMOTE_KEY_NUM4: IRNumKeyCtrl(4); break;
case REMOTE_KEY_NUM5: IRNumKeyCtrl(5); break;
case REMOTE_KEY_NUM6: IRNumKeyCtrl(6); break;
case REMOTE_KEY_NUM7: IRNumKeyCtrl(7); break;
case REMOTE_KEY_NUM8: IRNumKeyCtrl(8); break;
case REMOTE_KEY_NUM9: IRNumKeyCtrl(9); break;
case REMOTE_KEY_NUM_Bites: IRNumKeyCtrl(10); break;
#endif
}
if(bTemp)
OSDEventMgr();
EX1=1;
}
//#endif
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