1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/* $Id: fsm.c,v 1.11 1999/12/23 15:09:32 keil Exp $
* Author Karsten Keil (keil@isdn4linux.de)
* based on the teles driver from Jan den Ouden
*
* Thanks to Jan den Ouden
* Fritz Elfert
*
* $Log: fsm.c,v $
* Revision 1.11 1999/12/23 15:09:32 keil
* change email
*
* Revision 1.10 1998/11/15 23:54:39 keil
* changes from 2.0
*
* Revision 1.9 1998/03/26 07:10:02 paul
* The jumpmatrix table in struct Fsm was an array of "int". This is not
* large enough for pointers to functions on Linux/Alpha (instant crash
* on "insmod hisax). Now there is a typedef for the pointer to function.
* This also prevents warnings about "incompatible pointer types".
*
* Revision 1.8 1998/03/07 22:56:59 tsbogend
* made HiSax working on Linux/Alpha
*
* Revision 1.7 1997/11/06 17:09:13 keil
* New 2.1 init code
*
* Revision 1.6 1997/07/27 21:42:25 keil
* proof Fsm routines
*
* Revision 1.5 1997/06/26 11:10:05 keil
* Restart timer function added
*
* Revision 1.4 1997/04/06 22:56:42 keil
* Some cosmetic changes
*
* 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
HISAX_INITFUNC(void
FsmNew(struct Fsm *fsm,
struct FsmNode *fnlist, int fncount))
{
int i;
fsm->jumpmatrix = (FSMFNPTR *)
kmalloc(sizeof (FSMFNPTR) * fsm->state_count * fsm->event_count, GFP_KERNEL);
memset(fsm->jumpmatrix, 0, sizeof (FSMFNPTR) * fsm->state_count * fsm->event_count);
for (i = 0; i < fncount; i++)
if ((fnlist[i].state>=fsm->state_count) || (fnlist[i].event>=fsm->event_count)) {
printk(KERN_ERR "FsmNew Error line %d st(%ld/%ld) ev(%ld/%ld)\n",
i,(long)fnlist[i].state,(long)fsm->state_count,
(long)fnlist[i].event,(long)fsm->event_count);
} else
fsm->jumpmatrix[fsm->state_count * fnlist[i].event +
fnlist[i].state] = (FSMFNPTR) fnlist[i].routine;
}
void
FsmFree(struct Fsm *fsm)
{
kfree((void *) fsm->jumpmatrix);
}
int
FsmEvent(struct FsmInst *fi, int event, void *arg)
{
FSMFNPTR r;
if ((fi->state>=fi->fsm->state_count) || (event >= fi->fsm->event_count)) {
printk(KERN_ERR "FsmEvent Error st(%ld/%ld) ev(%d/%ld)\n",
(long)fi->state,(long)fi->fsm->state_count,event,(long)fi->fsm->event_count);
return(1);
}
r = fi->fsm->jumpmatrix[fi->fsm->state_count * event + fi->state];
if (r) {
if (fi->debug)
fi->printdebug(fi, "State %s Event %s",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
r(fi, event, arg);
return (0);
} else {
if (fi->debug)
fi->printdebug(fi, "State %s Event %s no routine",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
return (!0);
}
}
void
FsmChangeState(struct FsmInst *fi, int newstate)
{
fi->state = newstate;
if (fi->debug)
fi->printdebug(fi, "ChangeState %s",
fi->fsm->strState[newstate]);
}
static void
FsmExpireTimer(struct FsmTimer *ft)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft);
#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)
ft->fi->printdebug(ft->fi, "FsmInitTimer %lx", (long) ft);
#endif
init_timer(&ft->tl);
}
void
FsmDelTimer(struct FsmTimer *ft, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmDelTimer %lx %d", (long) ft, where);
#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)
ft->fi->printdebug(ft->fi, "FsmAddTimer %lx %d %d",
(long) ft, millisec, where);
#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;
}
void
FsmRestartTimer(struct FsmTimer *ft,
int millisec, int event, void *arg, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmRestartTimer %lx %d %d",
(long) ft, millisec, where);
#endif
if (ft->tl.next || ft->tl.prev)
del_timer(&ft->tl);
init_timer(&ft->tl);
ft->event = event;
ft->arg = arg;
ft->tl.expires = jiffies + (millisec * HZ) / 1000;
add_timer(&ft->tl);
}
|
