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117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
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* Copyright (C) 2020 Inria
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup pkg_mynewt_core
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* @{
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*
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* @file
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* @brief mynewt-core time abstraction
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*
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* @author Francisco Molina <francois-xavier.molina@inria.fr>
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* @}
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*/
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#ifndef OS_OS_TIME_H
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#define OS_OS_TIME_H
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#include "os/os_error.h"
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#include "ztimer.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 Ticks per seconds, ztimer_msec is used as system timer
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*/
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#define OS_TICKS_PER_SEC (MS_PER_SEC)
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/**
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* @brief Returns the low 32 bits of cputime.
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*
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* @return uint32_t The lower 32 bits of cputime
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*/
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static inline os_time_t os_time_get(void)
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{
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return ztimer_now(ZTIMER_MSEC);
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}
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/**
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* @brief Converts the given number of milliseconds into cputime ticks.
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*
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* @param[in] ms The number of milliseconds to convert to ticks
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* @param[out] out_ticks The number of ticks corresponding to 'ms'
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*
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* @return os_error_t OS_OK - no error
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*/
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static inline os_error_t os_time_ms_to_ticks(uint32_t ms, os_time_t *out_ticks)
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{
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*out_ticks = ms;
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return OS_OK;
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}
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/**
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* @brief Convert the given number of ticks into milliseconds.
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*
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* @param[in] ticks The number of ticks to convert to milliseconds.
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* @param[out] out_ms The converted milliseconds from 'ticks'
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*
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* @return os_error_t OS_OK - no error
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*/
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static inline os_error_t os_time_ticks_to_ms(os_time_t ticks, uint32_t *out_ms)
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{
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*out_ms = ticks;
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return OS_OK;
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}
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/**
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* @brief Converts the given number of milliseconds into cputime ticks.
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*
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* @param[in] ms The number of milliseconds to convert to ticks
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*
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* @return uint32_t The number of ticks corresponding to 'ms'
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*/
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static inline os_time_t os_time_ms_to_ticks32(uint32_t ms)
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{
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return ms;
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}
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/**
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* @brief Convert the given number of ticks into milliseconds.
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*
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* @param[in] ticks The number of ticks to convert to milliseconds.
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*
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* @return uint32_t The number of milliseconds corresponding to 'ticks'
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*/
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static inline os_time_t os_time_ticks_to_ms32(os_time_t ticks)
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{
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return ticks;
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}
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/**
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* @brief Wait until the number of ticks has elapsed, BLOICKING.
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*
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* @param[in] ticks The number of ticks to wait.
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*/
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static inline void os_time_delay(os_time_t ticks)
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{
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if (irq_is_in()) {
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ztimer_spin(ZTIMER_MSEC, ticks);
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}
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else {
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ztimer_sleep(ZTIMER_MSEC, ticks);
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}
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* OS_OS_TIME_H */
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