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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | /* $Id: fsm.c,v 1.7 1997/11/06 17:09:13 keil 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 1.7 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 = (int *) kmalloc(4L * fsm->state_count * fsm->event_count, GFP_KERNEL); memset(fsm->jumpmatrix, 0, 4L * 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(%d/%d) ev(%d/%d)\n", i,fnlist[i].state,fsm->state_count, fnlist[i].event,fsm->event_count); } else fsm->jumpmatrix[fsm->state_count * fnlist[i].event + fnlist[i].state] = (int) fnlist[i].routine; } void FsmFree(struct Fsm *fsm) { kfree((void *) fsm->jumpmatrix); } int FsmEvent(struct FsmInst *fi, int event, void *arg) { void (*r) (struct FsmInst *, int, void *); char str[80]; if ((fi->state>=fi->fsm->state_count) || (event >= fi->fsm->event_count)) { printk(KERN_ERR "FsmEvent Error st(%d/%d) ev(%d/%d)\n", fi->state,fi->fsm->state_count,event,fi->fsm->event_count); return(1); } 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; } void FsmRestartTimer(struct FsmTimer *ft, int millisec, int event, void *arg, int where) { #if FSM_TIMER_DEBUG if (ft->fi->debug) { char str[40]; sprintf(str, "FsmRestartTimer %lx %d %d", (long) ft, millisec, where); ft->fi->printdebug(ft->fi, str); } #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); } 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'; } |