ext/hal/nordic/drivers/nrf_radio_802154/platform/lp_timer/nrf_802154_lp_timer_zephyr.c

/* Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
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 *   2. Redistributions in binary form must reproduce the above copyright notice,
 *      this list of conditions and the following disclaimer in the documentation
 *      and/or other materials provided with the distribution.
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 *   3. Neither the name of Nordic Semiconductor ASA nor the names of its
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 *      this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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/**
 * @file
 *   This file contains standalone implementation of the nRF 802.15.4 timer abstraction.
 *
 * This implementation is built on top of the RTC peripheral.
 *
 */

#include <stdint.h>

#include <kernel.h>

#include "nrf_802154_lp_timer.h"
#include "nrf_802154_utils.h"

void nrf_802154_lp_timer_init(void)
{
    /* Intentionally empty. */
}

void nrf_802154_lp_timer_deinit(void)
{
    /* Intentionally empty. */
}

void nrf_802154_lp_timer_critical_section_enter(void)
{

    /* Intentionally empty. */
}

void nrf_802154_lp_timer_critical_section_exit(void)
{
    /* Intentionally empty. */
}

uint32_t nrf_802154_lp_timer_time_get(void)
{
    u64_t ticks = k_cycle_get_32();

    return (u32_t)(NRF_802154_RTC_TICKS_TO_US(ticks));
}

uint32_t nrf_802154_lp_timer_granularity_get(void)
{
    return NRF_802154_US_PER_TICK;
}