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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/drivers/isdn/hisax/fsm.h
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/* $Id: fsm.h,v 1.3.2.2 2001/09/23 22:24:47 kai Exp $

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 *

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 * Finite state machine

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 *

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 * Author       Karsten Keil

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 * Copyright    by Karsten Keil      <[email protected]>

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 *              by Kai Germaschewski <[email protected]>

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 * 

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 * This software may be used and distributed according to the terms

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 * of the GNU General Public License, incorporated herein by reference.

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 *

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 */

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#ifndef __FSM_H__

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#define __FSM_H__

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#include <linux/timer.h>

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struct FsmInst;

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typedef void (* FSMFNPTR)(struct FsmInst *, int, void *);

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struct Fsm {

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	FSMFNPTR *jumpmatrix;

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	int state_count, event_count;

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	char **strEvent, **strState;

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};

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struct FsmInst {

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	struct Fsm *fsm;

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	int state;

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	int debug;

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	void *userdata;

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	int userint;

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	void (*printdebug) (struct FsmInst *, char *, ...);

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};

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struct FsmNode {

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	int state, event;

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	void (*routine) (struct FsmInst *, int, void *);

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};

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struct FsmTimer {

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	struct FsmInst *fi;

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	struct timer_list tl;

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	int event;

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	void *arg;

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};

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int FsmNew(struct Fsm *fsm, struct FsmNode *fnlist, int fncount);

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void FsmFree(struct Fsm *fsm);

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int FsmEvent(struct FsmInst *fi, int event, void *arg);

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void FsmChangeState(struct FsmInst *fi, int newstate);

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void FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft);

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int FsmAddTimer(struct FsmTimer *ft, int millisec, int event,

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		void *arg, int where);

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void FsmRestartTimer(struct FsmTimer *ft, int millisec, int event,

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		     void *arg, int where);

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void FsmDelTimer(struct FsmTimer *ft, int where);

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#endif

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