Ir.rar_ir remote_ir remote control_红外遥控器_车载_遥控接收

/************************************************************************/ /* Copyright(c) 2003, ShenZhen, All Rights Reserved */ /* Created By DuirkWang, 08.21.2003 */ /* File: Ir.c */ /* Ver: 1.0.1 */ /* Project: */ /* Description: NEC format IR process routine */ /************************************************************************/ #include "Config.h" #include "Reg52.h" #include "global.h" #include "Extern.h" #include "Event.h" #include "tools.h" #include "i2c.h" #include "ir.h" #include "Avswitch.h" #ifdef CD_CHANGER #include "Cdc.h" #endif #include "command.h" #include "ir_lut.h" // Hoe many repeat message will ignore before send it to the FSM's #define REPEAT_DELAY 5 enum { IR_IDLE, IR_HEADER, IR_CUSTOM }; BYTE idata IrState = IR_IDLE; Uint16 idata IrData = 0; BYTE xdata IrDataBitCnt = 0; WORD xdata ir_code=0x0ff; WORD xdata custom_code; // Hold the custom (remote ID) code BYTE xdata last_ir_code=0x0ff; // Hold the ir code BYTE xdata repeat_delay = REPEAT_DELAY; // Repeat code counter BYTE xdata valid_repeat = 0; extern BIT dac_key_flag; Uint8 idata eject_flag_cnt = 0; extern BIT open_require_flag; extern BIT close_require_flag; #define IR_LEADER 27000 #define DATA_0 2240 #define DATA_1 4480 #define IR_REPEAT_LEADER 23000 #define LEADER_MARGIN 800 #define IR_MARGIN 300 void Require_flag_set(); void Close_flag_set(); void InitInt0() { IT0=1; //down edge interrupt PX0=1; IE0=0; EX0=1; //open INT0 EA=1; } void IR_init() { TMOD&=0x0F; TMOD|=0x10; TH1 = 0; TL1 = 0; TR1 = 0; } static void IR_decode() { WORD width; BIT IrError = 0; HIBYTE(width) = TH1; LOBYTE(width) = TL1; if (TF1 == 1) { IrState = IR_IDLE; TF1 = 0; } switch (IrState) { case IR_IDLE: IrState = IR_HEADER; break; case IR_HEADER: if ((width >= IR_LEADER - LEADER_MARGIN) && (width <= IR_LEADER +LEADER_MARGIN)) { IrState = IR_CUSTOM; IrData = IrDataBitCnt = 0; }else if((width >= IR_REPEAT_LEADER - LEADER_MARGIN) && (width <= IR_REPEAT_LEADER +LEADER_MARGIN)) { if (repeat_delay) { eject_flag_cnt = 3; // Delay before sendnig the first repeat repeat_delay--; } else { // repeat last ir_code if (valid_repeat) { if(last_ir_code == IRKC_SETUP) { dac_key_flag = 1; valid_repeat = 0; Send_Event( IE_UI_REMOTE_INPUT); } #ifndef AVC500_FUTE else if((last_ir_code == IRKC_EJECT2) || (last_ir_code == IRKC_EJECT)) { Close_flag_set(); Send_Event( IE_UI_REMOTE_INPUT); valid_repeat = 0; } #endif else { ir_code=last_ir_code; Send_Event( IE_UI_REMOTE_INPUT); if((ir_code == IRKC_SEARCH_NEXT) || (ir_code == IRKC_SEARCH_PREV) || (ir_code == IRKC_SEARCH_NEXT2) || (ir_code == IRKC_SEARCH_PREV2) #ifdef BLACK_VOLTAGE || (ir_code == IRKC_BLACK_SCREEN) #endif ) valid_repeat = 0; } } } IrState = IR_HEADER; } else IrError = 1; break; case IR_CUSTOM: IrData <<= 1; if ((width >= DATA_1 - IR_MARGIN ) && (width <= DATA_1 + IR_MARGIN)) IrData |= 1; else if ((width >= DATA_0 - IR_MARGIN) && (width <= DATA_0 + IR_MARGIN)) ; else IrError = 1; IrDataBitCnt ++; if (IrDataBitCnt == 16) { if((IrData != g_ir_system_code) && (IrData != g_ir_system_code2)) IrError = 1; else custom_code = IrData ; } else if (IrDataBitCnt == 32) { { ir_code = (IrData >> 8) & 0xff; last_ir_code=ir_code; if(custom_code ==g_ir_system_code) { switch(ir_code) { case IRKC_LEFT: case IRKC_RIGHT: case IRKC_UP: case IRKC_DOWN: valid_repeat = 1; repeat_delay=REPEAT_DELAY; break; case IRKC_FASTR: case IRKC_FASTF: if((AV_ID == FM_ID) || (AV_ID == TV_ID)) { if(ir_code == IRKC_FASTR) last_ir_code = IRKC_SEARCH_PREV; else if(ir_code == IRKC_FASTF) last_ir_code = IRKC_SEARCH_NEXT; valid_repeat = 1; repeat_delay=REPEAT_DELAY; } else valid_repeat = 0; break; case IRKC_SETUP: valid_repeat = 1; repeat_delay=4 * REPEAT_DELAY; break; #ifndef AVC500_FUTE case IRKC_EJECT: last_ir_code = IRKC_EJECT; valid_repeat = 1; repeat_delay=REPEAT_DELAY; Require_flag_set(); eject_flag_cnt = 3; break; #endif default: valid_repeat=0; break; } } else if(custom_code == g_ir_system_code2) { switch(ir_code) { case IRKC_LEFT2: case IRKC_RIGHT2: case IRKC_UP2: case IRKC_DOWN2: valid_repeat = 1; repeat_delay=REPEAT_DELAY; break; #ifndef AVC500_FUTE case IRKC_EJECT2: last_ir_code = IRKC_EJECT2; valid_repeat = 1; repeat_delay=REPEAT_DELAY; Require_flag_set(); eject_flag_cnt = 3; break; #endif #ifdef BLACK_VOLTAGE case IRKC_TIME2: last_ir_code = IRKC_BLACK_SCREEN; valid_repeat = 1; repeat_delay=REPEAT_DELAY; break; #endif default: valid_repeat=0; break; } } Send_Event(IE_UI_REMOTE_INPUT); } IrState = IR_IDLE; } break; } if (IrError) { valid_repeat = 0; IrState = IR_IDLE; } } void IR_interrupt_server() interrupt 0 { Disable_TIME1; IR_decode(); Clear_TIME1; Enable_TIME1; }