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/* $Id: fsm.h,v 2001/09/23 22:24:47 kai Exp $
* Finite state machine
* Author Karsten Keil
* Copyright by Karsten Keil <>
* by Kai Germaschewski <>
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
#ifndef __FSM_H__
#define __FSM_H__
#include <linux/timer.h>
struct FsmInst;
typedef void (* FSMFNPTR)(struct FsmInst *, int, void *);
struct Fsm {
FSMFNPTR *jumpmatrix;
int state_count, event_count;
char **strEvent, **strState;
struct FsmInst {
struct Fsm *fsm;
int state;
int debug;
void *userdata;
int userint;
void (*printdebug) (struct FsmInst *, char *, ...);
struct FsmNode {
int state, event;
void (*routine) (struct FsmInst *, int, void *);
struct FsmTimer {
struct FsmInst *fi;
struct timer_list tl;
int event;
void *arg;
int FsmNew(struct Fsm *fsm, struct FsmNode *fnlist, int fncount);
void FsmFree(struct Fsm *fsm);
int FsmEvent(struct FsmInst *fi, int event, void *arg);
void FsmChangeState(struct FsmInst *fi, int newstate);
void FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft);
int FsmAddTimer(struct FsmTimer *ft, int millisec, int event,
void *arg, int where);
void FsmRestartTimer(struct FsmTimer *ft, int millisec, int event,
void *arg, int where);
void FsmDelTimer(struct FsmTimer *ft, int where);