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67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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* Copyright (C) 2014 René Kijewski <rene.kijewski@fu-berlin.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* Basic definitions for the hwtimer.
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*
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* @ingroup x86
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* @ingroup core_hwtimer
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* @{
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* @file
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* @author René Kijewski <rene.kijewski@fu-berlin.de>
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*/
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#ifndef CPU__X86__HWTIMER_CPU__H__
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#define CPU__X86__HWTIMER_CPU__H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Number of configured hardware timers.
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*
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* This value may be set as high as you need it.
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* The x86_hwtimer.c can emulate a lot of timers, since the real timers aren't used. :-)
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*/
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#ifndef HWTIMER_MAXTIMERS
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# define HWTIMER_MAXTIMERS 4
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#endif
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/**
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* @brief How many "ticks" there are in one second of wallclock time.
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*
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* Statically configured as `1 tick = 1 µs`.
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*/
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#define HWTIMER_SPEED (1000000L)
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/**
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* @brief Biggest value that can specify a valid number of hardware ticks.
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*
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* Since 1 tick = 1 µs, this number will flow over after 4295 seconds (1h11m34s).
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*/
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#define HWTIMER_MAXTICKS (0xFFFFFFFFu)
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#ifdef __cplusplus
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}
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#endif
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#endif
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/** @} */
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