mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2014 Freie Universität Berlin
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup core_arch
|
|
* @{
|
|
*
|
|
* @file hwtimer_arch.h
|
|
* @brief The kernel's hardware timer abstraction interface
|
|
*
|
|
* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
|
|
* @author Heiko Will <hwill@inf.fu-berlin.de>
|
|
* @author Kaspar Schleiser <kaspar@schleiser.de>
|
|
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
|
|
*/
|
|
|
|
#ifndef HWTIMER_ARCH_H_
|
|
#define HWTIMER_ARCH_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
|
|
/**
|
|
* @brief Initialize architecture dependent kernel timer support
|
|
*
|
|
* @param[in] handler callback that is called when timer @p offset is reached
|
|
* @param[in] fcpu the core CPU-frequency for tick interval calculation
|
|
*/
|
|
void hwtimer_arch_init(void (*handler)(int), uint32_t fcpu);
|
|
|
|
/**
|
|
* @brief Enable interrupts of hardware timers
|
|
*/
|
|
void hwtimer_arch_enable_interrupt(void);
|
|
|
|
/**
|
|
* @brief Disable interrupts of hardware timers
|
|
*/
|
|
void hwtimer_arch_disable_interrupt(void);
|
|
|
|
/**
|
|
* @brief Set a kernel timer to raise an interrupt after @p offset kernel timer
|
|
* ticks from now
|
|
*
|
|
* @param[in] offset number of ticks until the timer fires
|
|
* @param[in] timer the channel to set
|
|
*/
|
|
void hwtimer_arch_set(unsigned long offset, short timer);
|
|
|
|
/**
|
|
* @brief Set a kernel timer to raise an interrupt at specified system time.
|
|
*
|
|
* @param[in] value absolute timer tick value to set a timer channel to
|
|
* @param[in] timer the channel to set
|
|
*/
|
|
void hwtimer_arch_set_absolute(unsigned long value, short timer);
|
|
|
|
/**
|
|
* @brief Unset the kernel timer with the given timer ID
|
|
*
|
|
* @param[in] timer the channel to unset
|
|
*/
|
|
void hwtimer_arch_unset(short timer);
|
|
|
|
/**
|
|
* @brief Get the current tick count of the default hardware timer
|
|
*
|
|
* @return the current value of the hwtimer
|
|
*/
|
|
unsigned long hwtimer_arch_now(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* HWTIMER_ARCH_H_ */
|
|
/** @} */
|