cam_hita2.c

这是监视器行业常见摄像头与球机通讯协议的C语言源代码

/* 	
	Library for control hitachi camera 
	V 1.00 build 2003.06.20
	support camera list:
	16X:
	
	22X:
		VK_S214ER(TTL)
	23X:
		
*/

#include <REG54.H>
#include <INTRINS.H>
#include <STRING.H>
#include "kernel.h"
#include "camera.h"
#include "cam_func.h"
#include "config.h"


//发送或接收数据时关中断

#ifndef _CONFIG
	sfr WDTC = 0x8f;
	sbit ARXD = P1^2;
	sbit ATXD = P1^3;
#endif


//为4800波特率的摄像机使用
#ifdef FOCS_40M

void cam_bit_delays(void)
{
	register unsigned char j;
	
	for (j=0;j<226;j++);
	_nop_();_nop_();
}

void cam_bit_delayr(void)
{
	register unsigned char j;
	
	for (j=0;j<223;j++);_nop_();_nop_();
}

void half_bit_delay(void)	
{
	register unsigned char j;
	
	for (j=0;j<112;j++);
}

#else

void cam_bit_delays(void)
{
	register unsigned char j;
	
	for (j=0;j<123;j++);
}

void cam_bit_delayr(void)
{
	register unsigned char j;
	
	for (j=0;j<120;j++);
}

void half_bit_delay(void)	
{
	register unsigned char j;
	
	for (j=0;j<61;j++);
}

#endif

extern void cam_send_byte(unsigned char cam_data)
{
	register unsigned char i;
	bit check_bit;

	RESET;
	ACC = cam_data;
	check_bit = P;
	ATXD = 0;							// 发送起始码
	_nop_();
	
	for (i=0;i<8;i++)
	{
		cam_bit_delays();		
		cam_data >>= 1;
		ATXD = CY;	
	}
	cam_bit_delays();
	ATXD = check_bit;				
	cam_bit_delays();
	ATXD = 1;						// 发送结束码
	cam_bit_delays();	
}

extern unsigned char cam_receive_byte()
{
	unsigned int i = 0;
	unsigned char cam_data;

	do
	{	
		ARXD = 1;
		if (!ARXD)
		{
			half_bit_delay();
			ARXD = 1;
			if (!ARXD)
			{
				cam_data = 0;
				_nop_();_nop_();_nop_();
				_nop_();_nop_();_nop_();_nop_();
				for(i=0;i<8;i++)					// 开始移位接收数据
				{
					cam_bit_delayr();
					cam_data >>= 1;
					ARXD = 1;
					if (ARXD) cam_data |= 0x80;		// '低位在前读数据'经典
				}
				cam_bit_delayr();
				return cam_data;
			}
		}
		RESET;
	}while ((++i) <10000);
	return 0xff;
}


bit icr_manu_fg = 0;
unsigned char idata s_data[11];

unsigned char code asc[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};

unsigned char asc2hex(unsigned char asc)
{
	return ((asc < 0x3a) ? (asc - 0x30) : (asc - 0x37));
}

unsigned char asc2hex2(unsigned char hi,lo)
{
	return ((asc2hex(hi) << 4) | asc2hex(lo));
}

unsigned char hex2aschi(unsigned char hex)
{
	return asc[(hex & 0xf0) >> 4];
}

unsigned char hex2asclo(unsigned char hex)
{
	return asc[hex & 0x0f];
}


//模拟发送并接收一组数据,接收的数据存在发送的数组中
void cam_sandr_comm(unsigned char * s,unsigned char cc)
{
	unsigned char *p;

	EA = 0;
	for (p = s;p < s + cc;p++)
	{		
		cam_send_byte(*p);
		*p = cam_receive_byte();		
	}
	EA = 1;
	delay_xms(30);
}

void cam_send_command(unsigned char *s,unsigned char cc)
{
	unsigned char *p;

	for (p = s;p < s + cc;p++)  cam_send_byte(*p);
	delay_xms(30);
}

extern void cam_focus_auto()		
{
	f_auto_fg = 1;
	cam_send_command(":WFF0E00",8);
	
}

extern void cam_focus_manu()	
{
	f_auto_fg = 0;
	cam_send_command(":WFF0E08",8);
}

extern void cam_focus_far()		
{
	cam_focus_manu();
	cam_send_command(":WFCBBA9",8);
}
extern void cam_focus_near()		
{
	cam_focus_manu();
	cam_send_command(":WFCBBAA",8);
}
extern void cam_focus_stop()	
{
	cam_send_command(":WFCBBFE",8);							
}
extern void cam_zoom_wide()		
{
	cam_send_command(":WFCBB9B",8);
}
extern void cam_zoom_tele()		
{
	cam_send_command(":WFCBB99",8);
}
extern void cam_zoom_stop()		
{
	cam_focus_stop();
	cam_focus_auto();
}
extern void cam_iris_open()		{}
extern void cam_iris_close()		{}
extern void cam_power_on()			{}
extern void cam_power_off()		{}
extern void cam_ae_auto() 			{}
extern void cam_ae_manu()			{}
extern void cam_freeze_on()		{}
extern void cam_freeze_off()		{}	
extern void cam_backlight_on()		{cam_send_command(":WFECE02",8);}
extern void cam_backlight_off()	{cam_send_command(":WFECE00",8);}
extern void cam_reverse_on()		{}
extern void cam_reverse_off()		{}
extern void cam_display_on()		{}
extern void cam_display_off()		{}
extern void cam_d_zoom_on()		{cam_send_command(":WFCCB01",8);}
extern void cam_d_zoom_off()		{cam_send_command(":WFCCB00",8);}
extern void cam_icrshot_on()		{}
extern void cam_icrshot_off()		{}

extern void cam_wb_auto()			{}
extern void cam_wb_manu()			{}
extern void cam_picture_off()  	{}
extern void cam_picture_bw()   	{}

extern void cam_get_id(void)
{
	cam_send_command(":WFDFC00",8);
}

extern void cam_icr_set(void)
{
}

extern void set_level_limit(void)
{
	set_curlimit(1);
}

extern void cam_zoom_focus_direct(void)
{
	unsigned char i = 0;
	unsigned char th,tl;
	
	ES = 0;

	cam_focus_manu();	
	
	// zoom
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = '1';
	s_data[5] = '6';
	s_data[6] = hex2aschi(pre[7]);
	s_data[7] = hex2asclo(pre[7]);
	s_data[8] = hex2aschi(pre[8]);
	s_data[9] = hex2asclo(pre[8]);
	cam_send_command(s_data,10);						

	cam_send_command(":WF75303",8);

	// far limit
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = '1';
	s_data[5] = '8';
	s_data[6] = hex2aschi(pre[9]);
	s_data[7] = hex2asclo(pre[9]);
	s_data[8] = hex2aschi(pre[10]);
	s_data[9] = hex2asclo(pre[10]);
	cam_send_command(s_data,10);
	
	// near limit
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = '1';
	s_data[5] = 'A';
	s_data[6] = hex2aschi(pre[11]);
	s_data[7] = hex2asclo(pre[11]);
	s_data[8] = hex2aschi(pre[12]);
	s_data[9] = hex2asclo(pre[12]);
	cam_send_command(s_data,10);

	// tcb
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = 'B';
	s_data[5] = 'E';
	s_data[6] = hex2aschi(pre[13]);
	s_data[7] = hex2asclo(pre[13]);
	s_data[8] = hex2aschi(pre[14]);
	s_data[9] = hex2asclo(pre[14]);
	cam_send_command(s_data,10);

	// tcda
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = 'C';
	s_data[5] = '2';
	s_data[6] = hex2aschi(pre[15]);
	s_data[7] = hex2asclo(pre[15]);
	s_data[8] = hex2aschi(pre[16]);
	s_data[9] = hex2asclo(pre[16]);
	cam_send_command(s_data,10);

	// tcdb
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = 'C';
	s_data[5] = '4';
	s_data[6] = hex2aschi(pre[17]);
	s_data[7] = hex2asclo(pre[17]);
	s_data[8] = hex2aschi(pre[18]);
	s_data[9] = hex2asclo(pre[18]);
	cam_send_command(s_data,10);

	 // select
	s_data[0] = ':';
	s_data[1] = 'W';
	s_data[2] = 'F';
	s_data[3] = '8';
	s_data[4] = '9';
	s_data[5] = '5';
	s_data[6] = hex2aschi(pre[19]);
	s_data[7] = hex2asclo(pre[19]);
	cam_send_command(s_data,8);

	//digi
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = 'C';
	s_data[4] = '6';
	s_data[5] = 'E';
	s_data[6] = hex2aschi(pre[20]);
	s_data[7] = hex2asclo(pre[20]);
	s_data[8] = hex2aschi(pre[21]);
	s_data[9] = hex2asclo(pre[21]);
	cam_send_command(s_data,10);

	// focu
	s_data[0] = ':';
	s_data[1] = 'w';
	s_data[2] = 'F';
	s_data[3] = '7';
	s_data[4] = '1';
	s_data[5] = '2';
	s_data[6] = hex2aschi(pre[5]);
	s_data[7] = hex2asclo(pre[5]);
	s_data[8] = hex2aschi(pre[6]);
	s_data[9] = hex2asclo(pre[6]);
	cam_send_command(s_data,10);	

	do{		
		s_data[0] = ':';
		s_data[1] = 'r';
		s_data[2] = 'F';
		s_data[3] = '7';
		s_data[4] = '1';
		s_data[5] = '4';
		s_data[6] = '0';
		s_data[7] = '0';
		s_data[8] = '0';
		s_data[9] = '0';
		cam_sandr_comm(s_data,10);
		th = asc2hex2(s_data[6],s_data[7]);
		tl = asc2hex2(s_data[8],s_data[9]);
		RESET;
		if (i++ > 30) break;
	} while (((th != pre[7]) || (tl != pre[8])));

	cam_send_command(":WF75302",8);	
	ES = 1;
}

extern void cam_set_preset(void)
{
	
	ES = 0;
	RESET;
	cam_focus_manu();

	strcpy(s_data,":rF7100000");		
	cam_sandr_comm(s_data,10); // read focus position 2 bits
	seq[5] = asc2hex2(s_data[6],s_data[7]);  // focu hi
	seq[6] = asc2hex2(s_data[8],s_data[9]);  // focu lo

	strcpy(s_data,":rF7140000");
	cam_sandr_comm(s_data,10); // read zoom position 2 bits
	seq[7] = asc2hex2(s_data[6],s_data[7]);  // zoom hi
	seq[8] = asc2hex2(s_data[8],s_data[9]);  // zoom lo

	strcpy(s_data,":rF7180000");		
	cam_sandr_comm(s_data,10); // read focus position 2 bits
	seq[9] = asc2hex2(s_data[6],s_data[7]);  // focu hi
	seq[10] = asc2hex2(s_data[8],s_data[9]);  // focu lo

	strcpy(s_data,":rF71A0000");		
	cam_sandr_comm(s_data,10); // read focus position 2 bits
	seq[11] = asc2hex2(s_data[6],s_data[7]);  // focu hi
	seq[12] = asc2hex2(s_data[8],s_data[9]);  // focu lo

	strcpy(s_data,":rF7BE0000");
	cam_sandr_comm(s_data,10); // read tcb 2 bits
	seq[13] =asc2hex2(s_data[6],s_data[7]);  
	seq[14] =asc2hex2(s_data[8],s_data[9]); 

	strcpy(s_data,":rF7C20000");
	cam_sandr_comm(s_data,10); // read tcda 2 bits
	seq[15] =asc2hex2(s_data[6],s_data[7]);  
	seq[16] =asc2hex2(s_data[8],s_data[9]);
 	
	strcpy(s_data,":rF7C40000");
	cam_sandr_comm(s_data,10); // read tcdb 2 bits
	seq[17] =asc2hex2(s_data[6],s_data[7]);  
	seq[18] =asc2hex2(s_data[8],s_data[9]); 

	strcpy(s_data,":RF89500");
	cam_sandr_comm(s_data,8); // read select tc 1 bits
	seq[19] =asc2hex2(s_data[6],s_data[7]);

	strcpy(s_data,":rFC6E0000");
	cam_sandr_comm(s_data,10); // read digit zoom 2 bits
	seq[20] = asc2hex2(s_data[6],s_data[7]);  
	seq[21] = asc2hex2(s_data[8],s_data[9]); 
 
	ES = 1;		
}