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114 lines
2.7 KiB
C
114 lines
2.7 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_uwb_core
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* @{
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*
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* @file
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* @brief uwb-core DPL (Decawave Porting Layer) 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 DPL_DPL_TIME_H
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#define DPL_DPL_TIME_H
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#include "xtimer.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 DPL ticks per seconds
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*/
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#define DPL_TICKS_PER_SEC (XTIMER_HZ)
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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 dpl_time_t dpl_time_get(void)
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{
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return xtimer_now().ticks32;
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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 dpl_error_t DPL_OK - no error
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*/
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static inline dpl_error_t dpl_time_ms_to_ticks(uint32_t ms, dpl_time_t *out_ticks)
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{
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*out_ticks = xtimer_ticks_from_usec(ms * US_PER_MS).ticks32;
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return DPL_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 dpl_error_t DPL_OK - no error
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*/
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static inline dpl_error_t dpl_time_ticks_to_ms(dpl_time_t ticks, uint32_t *out_ms)
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{
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xtimer_ticks32_t val = {.ticks32 = ticks};
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*out_ms = xtimer_usec_from_ticks(val) * US_PER_MS;
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return DPL_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 dpl_time_t dpl_time_ms_to_ticks32(uint32_t ms)
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{
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return xtimer_ticks_from_usec(ms * US_PER_MS).ticks32;
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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 dpl_time_t dpl_time_ticks_to_ms32(dpl_time_t ticks)
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{
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xtimer_ticks32_t val = {.ticks32 = ticks};
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return xtimer_usec_from_ticks(val) * US_PER_MS;
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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 dpl_time_delay(dpl_time_t ticks)
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{
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xtimer_ticks32_t val = {.ticks32 = ticks};
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xtimer_tsleep32((xtimer_ticks32_t) val);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* DPL_DPL_TIME_H */
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