1 /* 2 * Copyright (c) 2016, The OpenThread Authors. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. Neither the name of the copyright holder nor the 13 * names of its contributors may be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /** 30 * @file 31 * @brief 32 * This file includes the platform abstraction for the microsecond alarm service. 33 */ 34 35 #ifndef OPENTHREAD_PLATFORM_ALARM_MICRO_H_ 36 #define OPENTHREAD_PLATFORM_ALARM_MICRO_H_ 37 38 #include <stdint.h> 39 40 #include <openthread/instance.h> 41 42 #ifdef __cplusplus 43 extern "C" { 44 #endif 45 46 /** 47 * @addtogroup plat-alarm 48 * 49 * @{ 50 * 51 */ 52 53 /** 54 * Set the alarm to fire at @p aDt microseconds after @p aT0. 55 * 56 * @param[in] aInstance The OpenThread instance structure. 57 * @param[in] aT0 The reference time. 58 * @param[in] aDt The time delay in microseconds from @p aT0. 59 * 60 */ 61 void otPlatAlarmMicroStartAt(otInstance *aInstance, uint32_t aT0, uint32_t aDt); 62 63 /** 64 * Stop the alarm. 65 * 66 * @param[in] aInstance The OpenThread instance structure. 67 * 68 */ 69 void otPlatAlarmMicroStop(otInstance *aInstance); 70 71 /** 72 * Get the current time. 73 * 74 * @returns The current time in microseconds. 75 * 76 */ 77 uint32_t otPlatAlarmMicroGetNow(void); 78 79 /** 80 * Signal that the alarm has fired. 81 * 82 * @param[in] aInstance The OpenThread instance structure. 83 */ 84 extern void otPlatAlarmMicroFired(otInstance *aInstance); 85 86 /** 87 * @} 88 * 89 */ 90 91 #ifdef __cplusplus 92 } // extern "C" 93 #endif 94 95 #endif // OPENTHREAD_PLATFORM_ALARM_MICRO_H_ 96
