1/* $Id: fsm.h,v 1.3.2.2 2001/09/23 22:24:47 Exp $ 2 * 3 * Finite state machine 4 * 5 * Author Karsten Keil 6 * Copyright by Karsten Keil <keil@isdn4linux.de> 7 * by Kai Germaschewski <kai.germaschewski@gmx.de> 8 * 9 * This software may be used and distributed according to the terms 10 * of the GNU General Public License, incorporated herein by reference. 11 * 12 */ 13 14#ifndef __FSM_H__ 15#define __FSM_H__ 16 17#include <linux/timer.h> 18 19struct FsmInst; 20 21typedef void (* FSMFNPTR)(struct FsmInst *, int, void *); 22 23struct Fsm { 24 FSMFNPTR *jumpmatrix; 25 int state_count, event_count; 26 char **strEvent, **strState; 27}; 28 29struct FsmInst { 30 struct Fsm *fsm; 31 int state; 32 int debug; 33 void *userdata; 34 int userint; 35 void (*printdebug) (struct FsmInst *, char *, ...); 36}; 37 38struct FsmNode { 39 int state, event; 40 void (*routine) (struct FsmInst *, int, void *); 41}; 42 43struct FsmTimer { 44 struct FsmInst *fi; 45 struct timer_list tl; 46 int event; 47 void *arg; 48}; 49 50int FsmNew(struct Fsm *fsm, struct FsmNode *fnlist, int fncount); 51void FsmFree(struct Fsm *fsm); 52int FsmEvent(struct FsmInst *fi, int event, void *arg); 53void FsmChangeState(struct FsmInst *fi, int newstate); 54void FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft); 55int FsmAddTimer(struct FsmTimer *ft, int millisec, int event, 56 void *arg, int where); 57void FsmRestartTimer(struct FsmTimer *ft, int millisec, int event, 58 void *arg, int where); 59void FsmDelTimer(struct FsmTimer *ft, int where); 60 61#endif 62