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78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* Copyright (C) 2013 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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* @addtogroup core_hwtimer
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* @{
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*
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* @file hwtimer_arch.h
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* @brief Architecture specific hwtimer API
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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.de>
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* @}
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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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* @param[in] handler callback function for the interrupt handler
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* @param[in] fcpu cpu frequency
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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
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* @param[in] timer hardware timer identifier
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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 Set a kernel timer to raise an interrupt at specified system time.
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*
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* @param[in] value system time
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* @param[in] timer hardware timer identifier
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*/
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void hwtimer_arch_set_absolute(unsigned long value, 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 hardware timer identifier
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*/
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void hwtimer_arch_unset(short timer);
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/**
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* Get the current tick count of the default hardware timer.
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*
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* @return The current tick count of the hardware timer
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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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