p_alec.c

这是监视器行业常见的键盘与球机通讯协议的C语言源代码

//
// V1.00 build 2003.04.21 by xsh 轨迹与线扫暂未使用
// V1.01 build 2003.05.23 by zh  完善协议

#include <REG54.H>
#include <INTRINS.H>
#include "protocol.h"
#include "kernel.h"
#include "config.h"

unsigned char data rr=0;
unsigned char data1,data2,data3,data4,datax,datay;
unsigned char xsp,ysp;
unsigned char data recv_code;
bit power_fg = 0;

/* 返回值为1则不当做预置点功能,返回值为0则是预置点功能 */
/* 用设置预置点的方法来实现附加功能*/
extern bit do_set_addon(unsigned char no)
{   
	switch (no)
	{
	case F_SCAN_START:   
	case F_SCAN_END:   
	case F_SEQ_SET:
		no = no;
		return 0;
	case F_CAM_RESET:			//camera reset
		addon_fg = 1;
		seq[10] = A_RESET;
		seq[11] = ON;
		return 1;
	case F_BLC_OFF:			//背光补偿关
		addon_fg = 1;   
		seq[10] = A_BLC;
		seq[11] = OFF;
		return 1;
	case F_ZERO_OFF:			//低照度关
		addon_fg = 1;
		seq[10] = A_ZERO;
		seq[11] = OFF;
		return 1;
	case F_MENU_OFF:			//diaplay off
		disp_off_fg = 1;
		return 1;
	case F_DIGI_OFF:
		addon_fg = 1;		//camera digital off
	 	seq[10] = A_DIGI;
	 	seq[11] = OFF;
	 	return 1;
	 case F_FOCU_MANU:
	 	addon_fg = 1;
	  	seq[10] = A_FOCU;		//聚焦手动
	  	seq[11] = MANU;
	  	return 1;
	  case F_IRIS_MANU:			// 光圈手动
	  	addon_fg = 1;
	  	seq[10] = A_IRIS;
	  	seq[11] = MANU;
	  	return 1;
	  case F_WB_MANU:			// 白平衡手动
	  	addon_fg = 1;
	  	seq[10] = A_WB;
	  	seq[11] = MANU;
	  	return 1;
	  case F_BLACK:			//黑白模式
	  	addon_fg = 1;
	  	seq[10] = A_BLACK;
	  	seq[11] = OFF;
	  	return 1;
	  case F_FREEZE_OFF:			//图象冻结解除
	  	addon_fg = 1;
	  	seq[10] = A_FRZE;
	  	seq[11] = OFF;
	  	return 1;
	  case F_MIRRO_OFF:			//镜像解除
	  	addon_fg = 1;
	  	seq[10] = A_MIRR;
	  	seq[11] = OFF;
	  	return 1;
	  default:
		no = no;
		return 0;
	}
}

/* 用调用预置点的方法来实现附加功能*/

extern bit do_call_addon(unsigned char no)
{
	switch (no)
	{
	case F_SCAN_RUN:
	    run_swing_fg = 1;
		seq[17] = F_SCAN_START;			//start point
		seq[18] = F_SCAN_END;			//end point
		return 1;
	case F_SCAN_STOP:
		run_swing_fg = 0;
		return 1;
	case F_SEQ_RUN:
	    run_seq2_fg = 1;		//运行轨迹标志,调用第一至第十六个预置点
		return 1;
	case F_CAM_POWER:
		power_fg = !power_fg;
		power_on_fg = power_fg;
		power_off_fg = !power_fg;
	    return 1;
	case F_BLC_ON:			//背光补偿开
		addon_fg = 1;
		seq[10] = A_BLC;
		seq[11] = ON;
		return 1;
	case F_ZERO_ON:			//低照度开
		addon_fg = 1;
		seq[10] = A_ZERO;
		seq[11] = ON;
		return 1;
	case F_MENU_ON:			//屏显开
		disp_on_fg = 1;
		return 1;
	case F_DIGI_ON:			//数字变倍开
		addon_fg = 1;
	 	seq[10] = A_DIGI;
	 	seq[11] = ON;
	 	return 1;
	 case F_FOCU_AUTO:
	    addon_fg = 1;
	  	seq[10] = A_FOCU;		//聚焦自动
	  	seq[11] = AUTO;
	  	return 1;
	  case F_IRIS_AUTO:			// 光圈自动
	  	addon_fg = 1;
	  	seq[10] = A_IRIS;
	  	seq[11] = AUTO;
	  	return 1;
	  case F_WB_AUTO:			// 白平衡自动
	  	addon_fg = 1;
	  	seq[10] = A_WB;
	  	seq[11] = AUTO;
	  	return 1;
	  case F_COLOR:			//黑白模式
	  	addon_fg = 1;
	  	seq[10] = A_BLACK;
	  	seq[11] = ON;
	  	return 1;
	  case F_FREEZE_ON:			//图象冻结
	  	addon_fg = 1;
	  	seq[10] = A_ZERO;
	  	seq[11] = ON;
	  	return 1;
	  case F_MIRRO_ON:			//镜像开
	  	addon_fg = 1;
	  	seq[10] = A_MIRR;
	  	seq[11] = ON;
	  	return 1;
	default:
		no = no;
		return 0;
	}
}

//初始化串行口
extern void init_serial(void)
{
	PCON = 0x00;SCON = 0x50;
	TH2 = 0xff; RCAP2H = 0xff;
#ifdef FOCS_40M
	TH2 = 0xfe; RCAP2H = 0xfe;
	TL2 = 0xfc; RCAP2L = 0xfc;
#else
	TH2 = 0xff; RCAP2H = 0xff;
	TL2 = 0x70; RCAP2L = 0x70;
#endif
	T2CON = 0x34;
}

//串行口中断服务程序
void serial_int(void) interrupt 4 using 1	// 串行口中断有高优先级,使用寄存器组1
{
	ES=0;
	if (_testbit_(RI))
	{	
		rr++;
		recv_code = SBUF;
		switch(rr)
		{
			case 1:	
				if (recv_code != 0x02) rr=0;
				datax = 2;
				break;
			case 2:		//address
				if(recv_code != id) rr=0;
				datax += recv_code;
				break;
			case 3:		//data1
				data1 = recv_code;
				datax += data1;
				break;
			case 4:		//data2
				data2 = recv_code;
				datax += data2;
				break;
			case 5:		//data3
				data3 = recv_code;
				datay = datax + data3;
				break;
			case 6:		//data4
				data4 = recv_code;
				
				switch (data1)
				{
				case 1:
					if (datay != data4) break;
					
					if (data3 == 0)
					{
						switch (data2)
						{
						default:
						case 0:
							if (_testbit_(zoom_need_stop)) zoom_stop_fg = 1;
							if (_testbit_(focus_need_stop)) focu_stop_fg = 1;
							seq[12] = 0;		//seq[12]---手动时的方向		
							cont_fg = 1;		//cont_fg---手动控制标志
							break;
						case 1:
						case 2:
						case 4:
						case 8:
						case 5:
						case 9:
						case 6:
						case 10:
							cont_fg = 1;
							run_seq2_fg = 0;
							run_swing_fg = 0;
							run_seq_fg = 0;
							seq[12] = data2 << 1;
							seq[13] = xsp;									
							seq[14] = ysp;
							break;
						case 0x10:
							zoom_wide_fg = 1;
							zoom_need_stop = 1;
							break;
						case 0x20:
							zoom_tele_fg = 1;
							zoom_need_stop = 1;
							break;
						case 0x40:
							focu_near_fg = 1;
							focus_need_stop = 1;
							break;
						case 0x80:
							focu_far_fg = 1;
							focus_need_stop = 1;
							break;
						}

					}
					else if (data3 == 0x01) 
                      	iris_open_fg = 1;
					else if (data3 == 0x02)
					  	iris_close_fg = 1;
					
				break;
			case 2:
				if (data3 != datax) break;
				call_pre_fg=1;
				run_swing_fg=0;
				run_seq2_fg=0;
				seq[15]=data2;
				break;
		    case 3:
				if (data3 != datax) break;
				run_seq2_fg = 1;
				break;
			case 5:
				if (data3 != datax) break;
				set_pre_fg=1;
				run_swing_fg=0;
				run_seq2_fg=0;
				seq[15]=data2;
				break;
			case 0x0e:
				if (datay != data4) break;
				xsp = data2;
				ysp = data3;
				break;
			}
		default:
		    rr=0;
		    break;
		}
	}
	ES=1;
}