107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
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/**
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* Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include "es_stopwatch.h"
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#include "sdk_macros.h"
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#include "app_timer.h"
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#include "es_app_config.h"
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static uint32_t m_ticks_last_returned[ES_STOPWATCH_MAX_USERS];
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static uint32_t m_ids_ticks_wrap[ES_STOPWATCH_MAX_USERS];
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static uint8_t m_nof_ids = 0;
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static bool m_initialized = false;
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uint32_t es_stopwatch_check(es_stopwatch_id_t id)
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{
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uint32_t ticks_current = app_timer_cnt_get();
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uint32_t ticks_diff;
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if (m_ids_ticks_wrap[id] == 0)
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{
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APP_ERROR_CHECK(NRF_ERROR_INVALID_STATE);
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}
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ticks_diff = app_timer_cnt_diff_compute(ticks_current, m_ticks_last_returned[id]);
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if (ticks_diff >= m_ids_ticks_wrap[id])
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{
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m_ticks_last_returned[id] = (ticks_current / m_ids_ticks_wrap[id]) * m_ids_ticks_wrap[id];
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return ticks_diff / m_ids_ticks_wrap[id];
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}
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return 0;
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}
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ret_code_t es_stopwatch_create(es_stopwatch_id_t * p_sw_id, uint32_t ticks_wrap)
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{
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VERIFY_PARAM_NOT_NULL(p_sw_id);
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if (m_nof_ids == ES_STOPWATCH_MAX_USERS)
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{
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return NRF_ERROR_INVALID_STATE;
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}
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if (!m_initialized)
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{
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return NRF_ERROR_MODULE_NOT_INITIALIZED;
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}
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*p_sw_id = m_nof_ids;
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m_ids_ticks_wrap[m_nof_ids] = ticks_wrap;
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m_nof_ids++;
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return NRF_SUCCESS;
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}
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void es_stopwatch_init(void)
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{
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m_nof_ids = 0;
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memset(m_ticks_last_returned, 0, sizeof(m_ticks_last_returned));
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memset(m_ids_ticks_wrap, 0, sizeof(m_ids_ticks_wrap));
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m_initialized = true;
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}
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