p_pelcod.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 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 data data1,data2,data3,data5,data6,datax;
unsigned char bdata data4;
sbit ext_fg = data4^0;
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2400bps
extern void init_serial(void)
{
	PCON = 0x00;SCON = 0x50;  //电源和串行口工作方式设置波特率不倍增
#ifdef FOCS_40M	
	TH2 = 0xfd; RCAP2H = 0xfd;
	TL2 = 0xf7; RCAP2L = 0xf7;
#else
    TH2 = 0xfe; RCAP2H = 0xfe;
	TL2 = 0xe0; RCAP2L = 0xe0;
#endif
	T2CON = 0x34;
}

void serial_int(void) interrupt 4 using 1
{
	ES=0;
	if(_testbit_(RI))
	{
		rr++;
		recv_code = SBUF;
		switch(rr)
		{
			case 1:		//Synch Byte(data1)
				if (recv_code != 0xff) rr = 0;
				break;
			case 2:		//data2
				if (recv_code != id) rr = 0;  //id球机地址
				datax = recv_code;
				break;
			case 3:		//data3
				data3 = recv_code;
				datax += data3;
				break;
			case 4:		//data4
				data4 = recv_code;
				datax += data4;
				break;
			case 5:		//data5
				data5 = recv_code;
				datax += data5;
				break;
			case 6:		//data6
				data6 = recv_code;
				datax += data6;
				break;
			case 7:		//data7 (check-sum)
				if(recv_code == datax)
				{
					if(ext_fg)
					{	
						run_swing_fg = 0;
						run_swing2_fg = 0;
						run_seq2_fg = 0;
						if(data4 == 0x03)
						{   //设置预置点
							set_pre_fg = 1;
							seq[15] = data6;
						}
						else if(data4==0x07)
						{
							//调预置点
							call_pre_fg = 1;
							seq[15] = data6;
						}
					}
					else
					{
						if(data3)
						{
							switch(data3)
							{
								case 0x01:	//foucs near
									focu_near_fg = 1;
									focus_need_stop = 1;
									break;
								case 0x02:	//iris open
									iris_open_fg = 1;
									break;
								case 0x04:	//iris close
									iris_close_fg = 1;
									break;
								case 0x10:	//auto-scan and turn camera on
									run_swing2_fg = 1;
									break;									
							}
						}
						else
						{
							switch(data4)
							{
								case 0x02:	//pan turn right
								case 0x04:	//pan turn left
								case 0x10:	//titl down
								case 0x08:	//titl up    						
								case 0x0c:	//pan turn left and titl up								
								case 0x14:	//pan turn right and titl down							
								case 0x0a:	//pan turn right and titl up					
								case 0x12:	//pan turn left and titl up
									cont_fg = 1;
									run_swing_fg = 0;
									run_swing2_fg = 0;
									run_seq2_fg = 0;
									seq[12] = data4; 
									seq[13] = data5;
									seq[14] = data6;
									break;
								case 0x20:	//zoom tele
									zoom_tele_fg = 1;
									zoom_need_stop = 1;
									break;
								case 0x40:	//zoom wide
									zoom_wide_fg = 1;
									zoom_need_stop = 1;
									break;
								case 0x80:	//focus far
									focu_far_fg = 1;
									focus_need_stop = 1;
									break;
								default:		
								    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;	
							}
						}		
					}
				}
				default:
					rr = 0;
					break;
		}
	}
	ES = 1;
}