xref: /openbmc/linux/drivers/isdn/mISDN/fsm.h (revision 60772e48)
1 /*
2  *
3  * Author       Karsten Keil <kkeil@novell.com>
4  *
5  * Thanks to    Jan den Ouden
6  *              Fritz Elfert
7  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  */
19 
20 #ifndef _MISDN_FSM_H
21 #define _MISDN_FSM_H
22 
23 #include <linux/timer.h>
24 
25 /* Statemachine */
26 
27 struct FsmInst;
28 
29 typedef void (*FSMFNPTR)(struct FsmInst *, int, void *);
30 
31 struct Fsm {
32 	FSMFNPTR *jumpmatrix;
33 	int state_count, event_count;
34 	char **strEvent, **strState;
35 };
36 
37 struct FsmInst {
38 	struct Fsm *fsm;
39 	int state;
40 	int debug;
41 	void *userdata;
42 	int userint;
43 	void (*printdebug) (struct FsmInst *, char *, ...);
44 };
45 
46 struct FsmNode {
47 	int state, event;
48 	void (*routine) (struct FsmInst *, int, void *);
49 };
50 
51 struct FsmTimer {
52 	struct FsmInst *fi;
53 	struct timer_list tl;
54 	int event;
55 	void *arg;
56 };
57 
58 extern int mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
59 extern void mISDN_FsmFree(struct Fsm *);
60 extern int mISDN_FsmEvent(struct FsmInst *, int , void *);
61 extern void mISDN_FsmChangeState(struct FsmInst *, int);
62 extern void mISDN_FsmInitTimer(struct FsmInst *, struct FsmTimer *);
63 extern int mISDN_FsmAddTimer(struct FsmTimer *, int, int, void *, int);
64 extern void mISDN_FsmRestartTimer(struct FsmTimer *, int, int, void *, int);
65 extern void mISDN_FsmDelTimer(struct FsmTimer *, int);
66 
67 #endif
68