drivers/isdn/mISDN/fsm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Author       Karsten Keil <kkeil@novell.com>
   5  *
   6  * Thanks to    Jan den Ouden
   7  *              Fritz Elfert
   8  * Copyright 2008  by Karsten Keil <kkeil@novell.com>
   9  */
  10
  11 #ifndef _MISDN_FSM_H
  12 #define _MISDN_FSM_H
  13
  14 #include <linux/timer.h>
  15
  16 /* Statemachine */
  17
  18 struct FsmInst;
  19
  20 typedef void (*FSMFNPTR)(struct FsmInst *, int, void *);
  21
  22 struct Fsm {
  23         FSMFNPTR *jumpmatrix;
  24         int state_count, event_count;
  25         char **strEvent, **strState;
  26 };
  27
  28 struct FsmInst {
  29         struct Fsm *fsm;
  30         int state;
  31         int debug;
  32         void *userdata;
  33         int userint;
  34         void (*printdebug) (struct FsmInst *, char *, ...);
  35 };
  36
  37 struct FsmNode {
  38         int state, event;
  39         void (*routine) (struct FsmInst *, int, void *);
  40 };
  41
  42 struct FsmTimer {
  43         struct FsmInst *fi;
  44         struct timer_list tl;
  45         int event;
  46         void *arg;
  47 };
  48
  49 extern int mISDN_FsmNew(struct Fsm *, struct FsmNode *, int);
  50 extern void mISDN_FsmFree(struct Fsm *);
  51 extern int mISDN_FsmEvent(struct FsmInst *, int , void *);
  52 extern void mISDN_FsmChangeState(struct FsmInst *, int);
  53 extern void mISDN_FsmInitTimer(struct FsmInst *, struct FsmTimer *);
  54 extern int mISDN_FsmAddTimer(struct FsmTimer *, int, int, void *, int);
  55 extern void mISDN_FsmRestartTimer(struct FsmTimer *, int, int, void *, int);
  56 extern void mISDN_FsmDelTimer(struct FsmTimer *, int);
  57
  58 #endif