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/* $Id: fsm.c,v 1.3 1997/02/16 01:04:08 fritz Exp $
*
* Author Karsten Keil (keil@temic-ech.spacenet.de)
* based on the teles driver from Jan den Ouden
*
* Thanks to Jan den Ouden
* Fritz Elfert
*
* $Log: fsm.c,v $
* Revision 1.3 1997/02/16 01:04:08 fritz
* Bugfix: Changed timer handling caused hang with 2.1.X
*
* Revision 1.2 1997/01/09 20:57:27 keil
* cleanup & FSM_TIMER_DEBUG
*
* Revision 1.1 1996/10/13 20:04:52 keil
* Initial revision
*
*
*/
#define __NO_VERSION__
#include "hisax.h"
#define FSM_TIMER_DEBUG 0
void
FsmNew(struct Fsm *fsm,
struct FsmNode *fnlist, int fncount)
{
int i;
fsm->jumpmatrix = (int *) Smalloc(4L * fsm->state_count * fsm->event_count,
GFP_KERNEL, "Fsm jumpmatrix");
memset(fsm->jumpmatrix, 0, 4L * fsm->state_count * fsm->event_count);
for (i = 0; i < fncount; i++)
fsm->jumpmatrix[fsm->state_count * fnlist[i].event +
fnlist[i].state] = (int) fnlist[i].routine;
}
void
FsmFree(struct Fsm *fsm)
{
Sfree((void *) fsm->jumpmatrix);
}
int
FsmEvent(struct FsmInst *fi, int event, void *arg)
{
void (*r) (struct FsmInst *, int, void *);
char str[80];
r = (void (*)) fi->fsm->jumpmatrix[fi->fsm->state_count * event + fi->state];
if (r) {
if (fi->debug) {
sprintf(str, "State %s Event %s",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
fi->printdebug(fi, str);
}
r(fi, event, arg);
return (0);
} else {
if (fi->debug) {
sprintf(str, "State %s Event %s no routine",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
fi->printdebug(fi, str);
}
return (!0);
}
}
void
FsmChangeState(struct FsmInst *fi, int newstate)
{
char str[80];
fi->state = newstate;
if (fi->debug) {
sprintf(str, "ChangeState %s",
fi->fsm->strState[newstate]);
fi->printdebug(fi, str);
}
}
static void
FsmExpireTimer(struct FsmTimer *ft)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug) {
char str[40];
sprintf(str, "FsmExpireTimer %lx", (long)ft);
ft->fi->printdebug(ft->fi, str);
}
#endif
FsmEvent(ft->fi, ft->event, ft->arg);
}
void
FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft)
{
ft->fi = fi;
ft->tl.function = (void *) FsmExpireTimer;
ft->tl.data = (long) ft;
#if FSM_TIMER_DEBUG
if (ft->fi->debug) {
char str[40];
sprintf(str, "FsmInitTimer %lx", (long)ft);
ft->fi->printdebug(ft->fi, str);
}
#endif
init_timer(&ft->tl);
}
void
FsmDelTimer(struct FsmTimer *ft, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug) {
char str[40];
sprintf(str, "FsmDelTimer %lx %d", (long)ft, where);
ft->fi->printdebug(ft->fi, str);
}
#endif
del_timer(&ft->tl);
}
int
FsmAddTimer(struct FsmTimer *ft,
int millisec, int event, void *arg, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug) {
char str[40];
sprintf(str, "FsmAddTimer %lx %d %d", (long)ft, millisec, where);
ft->fi->printdebug(ft->fi, str);
}
#endif
if (ft->tl.next || ft->tl.prev) {
printk(KERN_WARNING "FsmAddTimer: timer already active!\n");
ft->fi->printdebug(ft->fi, "FsmAddTimer already active!");
return -1;
}
init_timer(&ft->tl);
ft->event = event;
ft->arg = arg;
ft->tl.expires = jiffies + (millisec * HZ) / 1000;
add_timer(&ft->tl);
return 0;
}
int
FsmTimerRunning(struct FsmTimer *ft)
{
return (ft->tl.next != NULL);
}
void
jiftime(char *s, long mark)
{
s += 8;
*s-- = '\0';
*s-- = mark % 10 + '0';
mark /= 10;
*s-- = mark % 10 + '0';
mark /= 10;
*s-- = '.';
*s-- = mark % 10 + '0';
mark /= 10;
*s-- = mark % 6 + '0';
mark /= 6;
*s-- = ':';
*s-- = mark % 10 + '0';
mark /= 10;
*s-- = mark % 10 + '0';
}
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