Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Karsten Keil | 902 | 95.55% | 1 | 20.00% |
Kees Cook | 23 | 2.44% | 2 | 40.00% |
Anton Vasilyev | 16 | 1.69% | 1 | 20.00% |
Geliang Tang | 3 | 0.32% | 1 | 20.00% |
Total | 944 | 5 |
/* * finite state machine implementation * * Author Karsten Keil <kkeil@novell.com> * * Thanks to Jan den Ouden * Fritz Elfert * Copyright 2008 by Karsten Keil <kkeil@novell.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/string.h> #include "fsm.h" #define FSM_TIMER_DEBUG 0 int mISDN_FsmNew(struct Fsm *fsm, struct FsmNode *fnlist, int fncount) { int i; fsm->jumpmatrix = kzalloc(array3_size(sizeof(FSMFNPTR), fsm->state_count, fsm->event_count), GFP_KERNEL); if (fsm->jumpmatrix == NULL) return -ENOMEM; for (i = 0; i < fncount; i++) if ((fnlist[i].state >= fsm->state_count) || (fnlist[i].event >= fsm->event_count)) { printk(KERN_ERR "mISDN_FsmNew Error: %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; return 0; } EXPORT_SYMBOL(mISDN_FsmNew); void mISDN_FsmFree(struct Fsm *fsm) { kfree((void *) fsm->jumpmatrix); } EXPORT_SYMBOL(mISDN_FsmFree); int mISDN_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 "mISDN_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 action", fi->fsm->strState[fi->state], fi->fsm->strEvent[event]); return 1; } } EXPORT_SYMBOL(mISDN_FsmEvent); void mISDN_FsmChangeState(struct FsmInst *fi, int newstate) { fi->state = newstate; if (fi->debug) fi->printdebug(fi, "ChangeState %s", fi->fsm->strState[newstate]); } EXPORT_SYMBOL(mISDN_FsmChangeState); static void FsmExpireTimer(struct timer_list *t) { struct FsmTimer *ft = from_timer(ft, t, tl); #if FSM_TIMER_DEBUG if (ft->fi->debug) ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft); #endif mISDN_FsmEvent(ft->fi, ft->event, ft->arg); } void mISDN_FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft) { ft->fi = fi; #if FSM_TIMER_DEBUG if (ft->fi->debug) ft->fi->printdebug(ft->fi, "mISDN_FsmInitTimer %lx", (long) ft); #endif timer_setup(&ft->tl, FsmExpireTimer, 0); } EXPORT_SYMBOL(mISDN_FsmInitTimer); void mISDN_FsmDelTimer(struct FsmTimer *ft, int where) { #if FSM_TIMER_DEBUG if (ft->fi->debug) ft->fi->printdebug(ft->fi, "mISDN_FsmDelTimer %lx %d", (long) ft, where); #endif del_timer(&ft->tl); } EXPORT_SYMBOL(mISDN_FsmDelTimer); int mISDN_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, "mISDN_FsmAddTimer %lx %d %d", (long) ft, millisec, where); #endif if (timer_pending(&ft->tl)) { if (ft->fi->debug) { printk(KERN_WARNING "mISDN_FsmAddTimer: timer already active!\n"); ft->fi->printdebug(ft->fi, "mISDN_FsmAddTimer already active!"); } return -1; } ft->event = event; ft->arg = arg; ft->tl.expires = jiffies + (millisec * HZ) / 1000; add_timer(&ft->tl); return 0; } EXPORT_SYMBOL(mISDN_FsmAddTimer); void mISDN_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, "mISDN_FsmRestartTimer %lx %d %d", (long) ft, millisec, where); #endif if (timer_pending(&ft->tl)) del_timer(&ft->tl); ft->event = event; ft->arg = arg; ft->tl.expires = jiffies + (millisec * HZ) / 1000; add_timer(&ft->tl); } EXPORT_SYMBOL(mISDN_FsmRestartTimer);
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