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80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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/*
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Changes from V3.0.0
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+ ISRcode pulled inline to reduce stack-usage.
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+ Added functionality to only call vTaskSwitchContext() once
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when handling multiple interruptsources in a single interruptcall.
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+ Filename changed to a .c extension to allow stepping through code
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using F7.
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Changes from V3.0.1
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*/
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/*
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* ISR for the tick.
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* This increments the tick count and, if using the preemptive scheduler,
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* performs a context switch. This must be identical to the manual
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* context switch in how it stores the context of a task.
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*/
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#ifndef _FREERTOS_DRIVERS_TICK_ISRTICK_C
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#define _FREERTOS_DRIVERS_TICK_ISRTICK_C
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{
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/*
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* Was the interrupt the SystemClock?
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*/
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if( bCCP1IF && bCCP1IE )
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{
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/*
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* Reset the interrupt flag
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*/
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bCCP1IF = 0;
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/*
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* Maintain the tick count.
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*/
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if( xTaskIncrementTick() != pdFALSE )
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{
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/*
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* Ask for a switch to the highest priority task
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* that is ready to run.
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*/
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uxSwitchRequested = pdTRUE;
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}
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}
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}
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#pragma wizcpp uselib "$__PATHNAME__/Tick.c"
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#endif /* _FREERTOS_DRIVERS_TICK_ISRTICK_C */
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