drivers/isdn/mISDN/fsm.h

   1 /*
   2  *
   3  * Author       Karsten Keil <kkeil@novell.com>
   4  *
   5  * Thanks to    Jan den Ouden
   6  *              Fritz Elfert
   7  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  */
  19
  20 #ifndef _MISDN_FSM_H
  21 #define _MISDN_FSM_H
  22
  23 #include <linux/timer.h>
  24
  25 /* Statemachine */
  26
  27 struct FsmInst;
  28
  29 typedef void (*FSMFNPTR)(struct FsmInst *, int, void *);
  30
  31 struct Fsm {
  32         FSMFNPTR *jumpmatrix;
  33         int state_count, event_count;
  34         char **strEvent, **strState;
  35 };
  36
  37 struct FsmInst {
  38         struct Fsm *fsm;
  39         int state;
  40         int debug;
  41         void *userdata;
  42         int userint;
  43         void (*printdebug) (struct FsmInst *, char *, ...);
  44 };
  45
  46 struct FsmNode {
  47         int state, event;
  48         void (*routine) (struct FsmInst *, int, void *);
  49 };
  50
  51 struct FsmTimer {
  52         struct FsmInst *fi;
  53         struct timer_list tl;
  54         int event;
  55         void *arg;
  56 };
  57
  58 extern int mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
  59 extern void mISDN_FsmFree(struct Fsm *);
  60 extern int mISDN_FsmEvent(struct FsmInst *, int , void *);
  61 extern void mISDN_FsmChangeState(struct FsmInst *, int);
  62 extern void mISDN_FsmInitTimer(struct FsmInst *, struct FsmTimer *);
  63 extern int mISDN_FsmAddTimer(struct FsmTimer *, int, int, void *, int);
  64 extern void mISDN_FsmRestartTimer(struct FsmTimer *, int, int, void *, int);
  65 extern void mISDN_FsmDelTimer(struct FsmTimer *, int);
  66
  67 #endif