include/timers_kernel/timerscfg.h
changeset 391 7802a7d5584f
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390:31dc4ec8710c 391:7802a7d5584f
       
     1 /*
       
     2 This file is part of CanFestival, a library implementing CanOpen Stack. 
       
     3 
       
     4 Copyright (C): Edouard TISSERANT and Francis DUPIN
       
     5 
       
     6 See COPYING file for copyrights details.
       
     7 
       
     8 This library is free software; you can redistribute it and/or
       
     9 modify it under the terms of the GNU Lesser General Public
       
    10 License as published by the Free Software Foundation; either
       
    11 version 2.1 of the License, or (at your option) any later version.
       
    12 
       
    13 This library is distributed in the hope that it will be useful,
       
    14 but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    16 Lesser General Public License for more details.
       
    17 
       
    18 You should have received a copy of the GNU Lesser General Public
       
    19 License along with this library; if not, write to the Free Software
       
    20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    21 */
       
    22 
       
    23 #ifndef __TIMERSCFG_H__
       
    24 #define __TIMERSCFG_H__
       
    25 
       
    26 #include <linux/param.h>
       
    27 #include <linux/kthread.h>
       
    28 
       
    29 /* Time unit : clock ticks (jiffies) */
       
    30 /* Time resolution : ticks per second (architecture-dependent value 'HZ' defined in linux/param.h) */
       
    31 
       
    32 #define TIMEVAL unsigned long
       
    33 #define TIMEVAL_MAX (~(TIMEVAL)0) >> 1
       
    34 #define MS_TO_TIMEVAL(ms) ( (ms * HZ) / 1000 )
       
    35 #define US_TO_TIMEVAL(us) ( (us * HZ) / 1000000)
       
    36 
       
    37 #define TASK_HANDLE struct task_struct*
       
    38 
       
    39 #endif