fsm.h

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/* $Id: fsm.h,v 1.3.2.2 2001/09/23 22:24:47 kai Exp $
 *
 * Finite state machine
 *
 * Author       Karsten Keil
 * Copyright    by Karsten Keil      <[email protected]>
 *              by Kai Germaschewski <[email protected]>
 *
 * 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);

#endif