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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/**
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* @file rt_Robin.c
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* @brief
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*
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* DAPLink Interface Firmware
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* Copyright (c) 2009-2016, 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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#include "rt_TypeDef.h"
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#include "RTX_Config.h"
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#include "rt_List.h"
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#include "rt_Task.h"
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#include "rt_Time.h"
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#include "rt_Robin.h"
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/*----------------------------------------------------------------------------
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* Global Variables
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*---------------------------------------------------------------------------*/
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struct OS_ROBIN os_robin;
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/*----------------------------------------------------------------------------
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* Global Functions
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*---------------------------------------------------------------------------*/
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/*--------------------------- rt_init_robin ---------------------------------*/
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__weak void rt_init_robin (void) {
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/* Initialize Round Robin variables. */
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os_robin.task = NULL;
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os_robin.tout = (U16)os_rrobin;
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}
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/*--------------------------- rt_chk_robin ----------------------------------*/
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__weak void rt_chk_robin (void) {
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/* Check if Round Robin timeout expired and switch to the next ready task.*/
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P_TCB p_new;
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if (os_robin.task != os_rdy.p_lnk) {
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/* New task was suspended, reset Round Robin timeout. */
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os_robin.task = os_rdy.p_lnk;
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os_robin.time = (U16)os_time + os_robin.tout - 1;
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}
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if (os_robin.time == (U16)os_time) {
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/* Round Robin timeout has expired, swap Robin tasks. */
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os_robin.task = NULL;
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p_new = rt_get_first (&os_rdy);
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rt_put_prio ((P_XCB)&os_rdy, p_new);
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}
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}
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/*----------------------------------------------------------------------------
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* end of file
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*---------------------------------------------------------------------------*/
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