mirror of https://github.com/ARMmbed/mbed-os.git
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
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/*
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* Copyright (c) 2006-2019, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_MBED_SLEEP_TIMER_H
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#define MBED_MBED_SLEEP_TIMER_H
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#include "platform/SysTimer.h"
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#if MBED_CONF_RTOS_PRESENT
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extern "C" {
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#include "rtx_lib.h"
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}
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#endif
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namespace mbed {
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namespace internal {
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#if MBED_CONF_RTOS_PRESENT
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#define OS_TICK_US (1000000 / OS_TICK_FREQ)
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#else
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#define OS_TICK_US 1000
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#endif
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typedef SysTimer<OS_TICK_US> OsTimer;
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/* A SysTimer is used to provide the timed sleep - this provides access to share it for
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* other use, such as ticks. If accessed this way, it must not be in use when a sleep function below is called.
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*/
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extern OsTimer *os_timer;
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OsTimer *init_os_timer();
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/* -1 is effectively "sleep forever" */
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uint64_t do_timed_sleep_absolute(uint64_t wake_time, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
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#if MBED_CONF_RTOS_PRESENT
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/* Maximum sleep time is 2^32-1 ticks; timer is always set to achieve this */
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/* Assumes that ticker has been in use prior to call, so restricted to RTOS use */
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uint32_t do_timed_sleep_relative(uint32_t wake_delay, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
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#else
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void do_untimed_sleep(bool (*wake_predicate)(void *), void *wake_predicate_handle = NULL);
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/* (uint32_t)-1 delay is sleep forever */
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void do_timed_sleep_relative_or_forever(uint32_t wake_delay, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
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#endif
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}
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}
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#endif
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