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kernel/linux-imx6_3.14.28/drivers/isdn/hisax/fsm.h 1.43 KB
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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      <keil@isdn4linux.de>
   *              by Kai Germaschewski <kai.germaschewski@gmx.de>
   *
   * 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