dc.h

一个通过无线设备传输文件程序主要涉及内容是网络通信和RS232设置

/* *************************************************************
 *
 * common defines and structures for DC
 *
 * *************************************************************/
#ifndef _WXXT_DC_COMMON_H_
#define _WXXT_DC_COMMON_H_

#include "share.h"


/* log file & flags */
#define DC_MAIN_LOG    		"/tmp/dcmain.log"
#define DC_KEY_LOG		"/tmp/dc_key.log"
#define DC_AUDIO_LOG		"/tmp/dc_audio.log"
#define DC_VIDEO_LOG		"/tmp/dc_video.log"
#define DC_CARD_LOG		"/tmp/dc_card.log"
#define DC_GENERAL_LOG		"/tmp/dc_general.log"

/* socket for inter-process communication*/
#define DC_EVENT_MAIN_SOCK	"/tmp/.dc_event_main_sock"
#define DC_EVENT_KEY_SOCK	"/tmp/.dc_event_key_sock"
#define DC_EVENT_AUDIO_SOCK	"/tmp/.dc_event_audio_sock"
#define DC_EVENT_VIDEO_SOCK	"/tmp/.dc_event_video_sock"
#define DC_EVENT_CARD_SOCK	"/tmp/.dc_event_card_sock"
#define DC_EVENT_GENERAL_SOCK	"/tmp/.dc_event_general_sock"


/* DC Keyboard map */
#define UNUSED_KEY		-1
#define DC_MAX_KEY		12
#define DC_CANCEL_KEY		10
#define DC_STOP_KEY		11

#define CAM_FRAME_RATE		9

/* parameters */
#define DEFAULT_MEMBERS_PER_HOUSE	5	/* parent, grandparent, child */
#define DEFAULT_DC_REDUNDANT_MEMBERS	128

/* interval */
#define DC_SELFCHECK_INTERVAL		5	/* 5 seconds */
#define DC_CLEAR_DOORNUM_INTERVAL	10
#define DC_KEEP_REDAIL_DOORNUM_INTERVAL	90
/* make sure DC_TRY_DAIL_DURATION < DC_KEEP_REDAIL_DOORNUM_INTERVAL */
#define DC_TRY_DAIL_DURATION		60


#define DC_SHM_SIZE			10240//8192	//8K
#define DC_SHM_KEY			0x20040317


typedef struct{
	int		magic;	
	in_addr_t	dc_ip;
}dc_ip_t;
typedef struct{
	int		magic;	
	int		version;
}dc_version_t;
#define DC_IP_MAGIC			0x20040323
#define DC_VERSION_MAGIC		0x20040324
#define DC_INIT_INFO_MAGIC		0x20040318

/* variables used between processes */
struct global_var {
	volatile int 	ip_configure;
	volatile int 	inited_when_boot;
	volatile int	mtd_size;
    	volatile int	server1_active;
    	volatile int	server2_active;
	info_for_dc_t	init_info;
	dc_version_t 	dc_version;
	dc_ip_t		dc_ip;
};
extern struct global_var *gvar;
#define gdc_ip_configure	(gvar->ip_configure)
#define gdc_inited_when_boot	(gvar->inited_when_boot)
#define gdc_mtd_size            (gvar->mtd_size)
#define gdc_init_info		(gvar->init_info)
#define gdc_dc_version		(gvar->dc_version)
#define gdc_dc_ip		(gvar->dc_ip)

/* Info stored in mtddisk(at the bottom) */
typedef struct dc_mtd_format{
	/* Added new member here */
        info_for_dc_t  	init_info  __attribute__ ((aligned(8)));
	dc_version_t 	dc_version  __attribute__ ((aligned(8)));
        dc_ip_t  	dc_ip  __attribute__ ((aligned(8)));
}dc_mtd_format_t  __attribute__ ((aligned(8)));

#define MTD_BEGIN_OFFSET        ((gdc_mtd_size-sizeof(dc_mtd_format_t))&~0x7L)
#define MTD_CHILD_OFFSET(xxx)   ((int)&(((dc_mtd_format_t *)MTD_BEGIN_OFFSET)->xxx))

#define mtd_read_dc_info()  	\
    mtd_read((char *)&gdc_init_info,sizeof(info_for_dc_t),MTD_CHILD_OFFSET(init_info))
#define mtd_write_dc_info()     \
    mtd_write((char *)&gdc_init_info,sizeof(info_for_dc_t),MTD_CHILD_OFFSET(init_info))
#define mtd_read_dc_version()   \
    mtd_read((char *)&gdc_dc_version,sizeof(dc_version_t),MTD_CHILD_OFFSET(dc_version))
#define mtd_write_dc_version()  \
    mtd_write((char *)&gdc_dc_version,sizeof(dc_version_t),MTD_CHILD_OFFSET(dc_version))
#define mtd_read_dc_ip()      	\
    mtd_read((char *)&gdc_dc_ip,sizeof(dc_ip_t),MTD_CHILD_OFFSET(dc_ip))
#define mtd_write_dc_ip()      	\
    mtd_write((char *)&gdc_dc_ip,sizeof(dc_ip_t),MTD_CHILD_OFFSET(dc_ip))


/* message define between DC */
struct dc_event_msg_str{
	int	type;
	union{
		int	key;
		int	card;
		int	video;
		int	dog;
		int	udpip;		/* 0->close, else open ip */
	}u;
};
#define event_key 	u.key
#define event_card	u.card
#define event_video 	u.video
#define event_dog	u.dog
#define event_udpip	u.udpip

#define DC_EVENT_TYPE_KEY	1	//key to audio
#define DC_EVENT_TYPE_CARD	2	//key to audio
#define DC_EVENT_TYPE_VIDEO	3	//audio to video(by mutl)
#define DC_EVENT_TYPE_DOG	4	//watchdog
#define DC_EVENT_TYPE_UDPVIDEO	5	//send video by udp

#define DC_EVENT_DOG_MAGIC	0x20040325
#define DC_EVENT_DOG_REBOOT	0xdead

#define DC_EVENT_CARD_PLAY	1

/*
 * Event keyboard
 *	see key define above.
 */
/* Event audio */
#define DC_EVENT_VIDEO_ON	1
#define DC_EVENT_VIDEO_OFF	2
#define DC_EVENT_VIDEO_GRAB1	3	//prepare to grab
#define DC_EVENT_VIDEO_GRAB2	4	//grab
#define DC_EVENT_VIDEO_GRAB3	5	//cancel
struct dc_grabimage_head{
	int	width;
	int	height;
	int	size;
};


/* ======== global variable interface ======== */
extern void dc_global_init(void);
extern void dc_global_init2(void);
extern int  dc_get_hcip(char *hcname, in_addr_t *ip);
extern int  dc_get_hcnum(in_addr_t ip, char *hcname);
extern int  dc_is_hcip(in_addr_t ip);
extern int  dc_get_building_num(void);
extern int  dc_find_card_info(int cardid, int *pcardtype, int *pcardcred);
extern int  dc_modify_card_info(int cardid, int cardtype, int cardcred);

extern void verify_read_card(void);
extern void open_door(void);
extern int  dc_grab_image1(int sock, struct sockaddr *dst, int addrlen);
extern int  dc_grab_image3(int sock, struct sockaddr *dst, int addrlen);
extern int  dc_grab_image2(char *buf, int len, struct sockaddr *dst, 
			   int addrlen, int flag);
			

#endif /* _WXXT_DC_COMMON_H_ */