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72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
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/*
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* Copyright (C) 2014 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup core_arch
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* @{
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*
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* @file hwtimer_arch.h
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* @brief The kernel's hardware timer abstraction interface
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*
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* @author Freie Universität Berlin, Computer Systems & Telematics
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* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
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* @author Heiko Will <hwill@inf.fu-berlin.de>
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* @author Kaspar Schleiser <kaspar.schleiser@fu-berlin.de>
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*/
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#ifndef HWTIMER_ARCH_H_
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#define HWTIMER_ARCH_H_
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#include <stdint.h>
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/**
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* @brief Initialize architecture dependent kernel timer support
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*
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* @brief[in] handler callback that is called when timer offset is reached
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* @brief[in] fcpu the core CPU-frequency for tick interval calculation
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*/
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void hwtimer_arch_init(void (*handler)(int), uint32_t fcpu);
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/**
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* @brief Enable interrupts of hardware timers
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*/
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void hwtimer_arch_enable_interrupt(void);
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/**
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* @brief Disable interrupts of hardware timers
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*/
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void hwtimer_arch_disable_interrupt(void);
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/**
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* @brief Set a kernel timer to raise an interrupt after ::offset kernel timer
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* ticks from now
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*
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* @param[in] offset number of ticks until the timer fires
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* @param[in] timer the channel to set
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*/
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void hwtimer_arch_set(unsigned long offset, short timer);
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/**
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* @brief Unset the kernel timer with the given timer ID
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*
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* @param[in] timer the channel to unset
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*/
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void hwtimer_arch_unset(short timer);
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/**
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* @brief Get the current tick count of the default hardware timer
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*
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* @return the current value of the hwtimer
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*/
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unsigned long hwtimer_arch_now(void);
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#endif /* HWTIMER_ARCH_H_ */
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/** @} */
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