+++ /dev/null
-/*
- FreeRTOS V7.4.2 - Copyright (C) 2013 Real Time Engineers Ltd.
-
- FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
- http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
-
- ***************************************************************************
- * *
- * FreeRTOS tutorial books are available in pdf and paperback. *
- * Complete, revised, and edited pdf reference manuals are also *
- * available. *
- * *
- * Purchasing FreeRTOS documentation will not only help you, by *
- * ensuring you get running as quickly as possible and with an *
- * in-depth knowledge of how to use FreeRTOS, it will also help *
- * the FreeRTOS project to continue with its mission of providing *
- * professional grade, cross platform, de facto standard solutions *
- * for microcontrollers - completely free of charge! *
- * *
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
- * *
- * Thank you for using FreeRTOS, and thank you for your support! *
- * *
- ***************************************************************************
-
-
- This file is part of the FreeRTOS distribution.
-
- FreeRTOS is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License (version 2) as published by the
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
-
- >>>>>>NOTE<<<<<< The modification to the GPL is included to allow you to
- distribute a combined work that includes FreeRTOS without being obliged to
- provide the source code for proprietary components outside of the FreeRTOS
- kernel.
-
- FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
- details. You should have received a copy of the GNU General Public License
- and the FreeRTOS license exception along with FreeRTOS; if not it can be
- viewed here: http://www.freertos.org/a00114.html and also obtained by
- writing to Real Time Engineers Ltd., contact details for whom are available
- on the FreeRTOS WEB site.
-
- 1 tab == 4 spaces!
-
- ***************************************************************************
- * *
- * Having a problem? Start by reading the FAQ "My application does *
- * not run, what could be wrong?" *
- * *
- * http://www.FreeRTOS.org/FAQHelp.html *
- * *
- ***************************************************************************
-
-
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,
- license and Real Time Engineers Ltd. contact details.
-
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
- including FreeRTOS+Trace - an indispensable productivity tool, and our new
- fully thread aware and reentrant UDP/IP stack.
-
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
- Integrity Systems, who sell the code with commercial support,
- indemnification and middleware, under the OpenRTOS brand.
-
- http://www.SafeRTOS.com - High Integrity Systems also provide a safety
- engineered and independently SIL3 certified version for use in safety and
- mission critical applications that require provable dependability.
-*/
-
-
-#include <stdlib.h>
-#include "os/FreeRTOS.h"
-#include "os/list.h"
-
-/*-----------------------------------------------------------
- * PUBLIC LIST API documented in list.h
- *----------------------------------------------------------*/
-
-void vListInitialise( xList *pxList )
-{
- /* The list structure contains a list item which is used to mark the
- end of the list. To initialise the list the list end is inserted
- as the only list entry. */
- pxList->pxIndex = ( xListItem * ) &( pxList->xListEnd );
-
- /* The list end value is the highest possible value in the list to
- ensure it remains at the end of the list. */
- pxList->xListEnd.xItemValue = portMAX_DELAY;
-
- /* The list end next and previous pointers point to itself so we know
- when the list is empty. */
- pxList->xListEnd.pxNext = ( xListItem * ) &( pxList->xListEnd );
- pxList->xListEnd.pxPrevious = ( xListItem * ) &( pxList->xListEnd );
-
- pxList->uxNumberOfItems = ( unsigned portBASE_TYPE ) 0U;
-}
-/*-----------------------------------------------------------*/
-
-void vListInitialiseItem( xListItem *pxItem )
-{
- /* Make sure the list item is not recorded as being on a list. */
- pxItem->pvContainer = NULL;
-}
-/*-----------------------------------------------------------*/
-
-void vListInsertEnd( xList *pxList, xListItem *pxNewListItem )
-{
-volatile xListItem * pxIndex;
-
- /* Insert a new list item into pxList, but rather than sort the list,
- makes the new list item the last item to be removed by a call to
- pvListGetOwnerOfNextEntry. This means it has to be the item pointed to by
- the pxIndex member. */
- pxIndex = pxList->pxIndex;
-
- pxNewListItem->pxNext = pxIndex->pxNext;
- pxNewListItem->pxPrevious = pxList->pxIndex;
- pxIndex->pxNext->pxPrevious = ( volatile xListItem * ) pxNewListItem;
- pxIndex->pxNext = ( volatile xListItem * ) pxNewListItem;
- pxList->pxIndex = ( volatile xListItem * ) pxNewListItem;
-
- /* Remember which list the item is in. */
- pxNewListItem->pvContainer = ( void * ) pxList;
-
- ( pxList->uxNumberOfItems )++;
-}
-/*-----------------------------------------------------------*/
-
-void vListInsert( xList *pxList, xListItem *pxNewListItem )
-{
-volatile xListItem *pxIterator;
-portTickType xValueOfInsertion;
-
- /* Insert the new list item into the list, sorted in ulListItem order. */
- xValueOfInsertion = pxNewListItem->xItemValue;
-
- /* If the list already contains a list item with the same item value then
- the new list item should be placed after it. This ensures that TCB's which
- are stored in ready lists (all of which have the same ulListItem value)
- get an equal share of the CPU. However, if the xItemValue is the same as
- the back marker the iteration loop below will not end. This means we need
- to guard against this by checking the value first and modifying the
- algorithm slightly if necessary. */
- if( xValueOfInsertion == portMAX_DELAY )
- {
- pxIterator = pxList->xListEnd.pxPrevious;
- }
- else
- {
- /* *** NOTE ***********************************************************
- If you find your application is crashing here then likely causes are:
- 1) Stack overflow -
- see http://www.freertos.org/Stacks-and-stack-overflow-checking.html
- 2) Incorrect interrupt priority assignment, especially on Cortex-M3
- parts where numerically high priority values denote low actual
- interrupt priories, which can seem counter intuitive. See
- configMAX_SYSCALL_INTERRUPT_PRIORITY on http://www.freertos.org/a00110.html
- 3) Calling an API function from within a critical section or when
- the scheduler is suspended.
- 4) Using a queue or semaphore before it has been initialised or
- before the scheduler has been started (are interrupts firing
- before vTaskStartScheduler() has been called?).
- See http://www.freertos.org/FAQHelp.html for more tips.
- **********************************************************************/
-
- for( pxIterator = ( xListItem * ) &( pxList->xListEnd ); pxIterator->pxNext->xItemValue <= xValueOfInsertion; pxIterator = pxIterator->pxNext )
- {
- /* There is nothing to do here, we are just iterating to the
- wanted insertion position. */
- }
- }
-
- pxNewListItem->pxNext = pxIterator->pxNext;
- pxNewListItem->pxNext->pxPrevious = ( volatile xListItem * ) pxNewListItem;
- pxNewListItem->pxPrevious = pxIterator;
- pxIterator->pxNext = ( volatile xListItem * ) pxNewListItem;
-
- /* Remember which list the item is in. This allows fast removal of the
- item later. */
- pxNewListItem->pvContainer = ( void * ) pxList;
-
- ( pxList->uxNumberOfItems )++;
-}
-/*-----------------------------------------------------------*/
-
-unsigned portBASE_TYPE uxListRemove( xListItem *pxItemToRemove )
-{
-xList * pxList;
-
- pxItemToRemove->pxNext->pxPrevious = pxItemToRemove->pxPrevious;
- pxItemToRemove->pxPrevious->pxNext = pxItemToRemove->pxNext;
-
- /* The list item knows which list it is in. Obtain the list from the list
- item. */
- pxList = ( xList * ) pxItemToRemove->pvContainer;
-
- /* Make sure the index is left pointing to a valid item. */
- if( pxList->pxIndex == pxItemToRemove )
- {
- pxList->pxIndex = pxItemToRemove->pxPrevious;
- }
-
- pxItemToRemove->pvContainer = NULL;
- ( pxList->uxNumberOfItems )--;
-
- return pxList->uxNumberOfItems;
-}
-/*-----------------------------------------------------------*/
-
projects / pes-rpp / rpp-lib.git / blobdiff