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adding support for keil's rtx cmsis-rtos

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hathach
2013-05-15 13:39:28 +07:00
parent 40503b913b
commit f4887b3981
60 changed files with 31851 additions and 0 deletions
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84
vendor/cmsis_rtos_rtx/SRC/rt_Robin.c vendored Normal file
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/*----------------------------------------------------------------------------
* RL-ARM - RTX
*----------------------------------------------------------------------------
* Name: RT_ROBIN.C
* Purpose: Round Robin Task switching
* Rev.: V4.70
*----------------------------------------------------------------------------
*
* Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*---------------------------------------------------------------------------*/
#include "rt_TypeDef.h"
#include "RTX_Config.h"
#include "rt_List.h"
#include "rt_Task.h"
#include "rt_Time.h"
#include "rt_Robin.h"
#include "rt_HAL_CM.h"
/*----------------------------------------------------------------------------
* Global Variables
*---------------------------------------------------------------------------*/
struct OS_ROBIN os_robin;
/*----------------------------------------------------------------------------
* Global Functions
*---------------------------------------------------------------------------*/
/*--------------------------- rt_init_robin ---------------------------------*/
__weak void rt_init_robin (void) {
/* Initialize Round Robin variables. */
os_robin.task = NULL;
os_robin.tout = (U16)os_rrobin;
}
/*--------------------------- rt_chk_robin ----------------------------------*/
__weak void rt_chk_robin (void) {
/* Check if Round Robin timeout expired and switch to the next ready task.*/
P_TCB p_new;
if (os_robin.task != os_rdy.p_lnk) {
/* New task was suspended, reset Round Robin timeout. */
os_robin.task = os_rdy.p_lnk;
os_robin.time = (U16)os_time + os_robin.tout - 1;
}
if (os_robin.time == (U16)os_time) {
/* Round Robin timeout has expired, swap Robin tasks. */
os_robin.task = NULL;
p_new = rt_get_first (&os_rdy);
rt_put_prio ((P_XCB)&os_rdy, p_new);
}
}
/*----------------------------------------------------------------------------
* end of file
*---------------------------------------------------------------------------*/