/*\r
- FreeRTOS V7.3.0 - Copyright (C) 2012 Real Time Engineers Ltd.\r
-\r
- FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT \r
- http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS tutorial books are available in pdf and paperback. *\r
- * Complete, revised, and edited pdf reference manuals are also *\r
- * available. *\r
- * *\r
- * Purchasing FreeRTOS documentation will not only help you, by *\r
- * ensuring you get running as quickly as possible and with an *\r
- * in-depth knowledge of how to use FreeRTOS, it will also help *\r
- * the FreeRTOS project to continue with its mission of providing *\r
- * professional grade, cross platform, de facto standard solutions *\r
- * for microcontrollers - completely free of charge! *\r
- * *\r
- * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *\r
- * *\r
- * Thank you for using FreeRTOS, and thank you for your support! *\r
- * *\r
- ***************************************************************************\r
-\r
-\r
- This file is part of the FreeRTOS distribution.\r
-\r
- FreeRTOS is free software; you can redistribute it and/or modify it under\r
- the terms of the GNU General Public License (version 2) as published by the\r
- Free Software Foundation AND MODIFIED BY the FreeRTOS exception.\r
- >>>NOTE<<< The modification to the GPL is included to allow you to\r
- distribute a combined work that includes FreeRTOS without being obliged to\r
- provide the source code for proprietary components outside of the FreeRTOS\r
- kernel. FreeRTOS is distributed in the hope that it will be useful, but\r
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY\r
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for\r
- more details. You should have received a copy of the GNU General Public\r
- License and the FreeRTOS license exception along with FreeRTOS; if not it\r
- can be viewed here: http://www.freertos.org/a00114.html and also obtained\r
- by writing to Richard Barry, contact details for whom are available on the\r
- FreeRTOS WEB site.\r
-\r
- 1 tab == 4 spaces!\r
- \r
- ***************************************************************************\r
- * *\r
- * Having a problem? Start by reading the FAQ "My application does *\r
- * not run, what could be wrong?" *\r
- * *\r
- * http://www.FreeRTOS.org/FAQHelp.html *\r
- * *\r
- ***************************************************************************\r
-\r
- \r
- http://www.FreeRTOS.org - Documentation, training, latest versions, license \r
- and contact details. \r
- \r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool.\r
-\r
- Real Time Engineers ltd license FreeRTOS to High Integrity Systems, who sell \r
- the code with commercial support, indemnification, and middleware, under \r
- the OpenRTOS brand: http://www.OpenRTOS.com. High Integrity Systems also\r
- provide a safety engineered and independently SIL3 certified version under \r
- the SafeRTOS brand: http://www.SafeRTOS.com.\r
-*/\r
+ * FreeRTOS Kernel V10.2.1\r
+ * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
+ * this software and associated documentation files (the "Software"), to deal in\r
+ * the Software without restriction, including without limitation the rights to\r
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
+ * the Software, and to permit persons to whom the Software is furnished to do so,\r
+ * subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included in all\r
+ * copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ *\r
+ * http://www.FreeRTOS.org\r
+ * http://aws.amazon.com/freertos\r
+ *\r
+ * 1 tab == 4 spaces!\r
+ */\r
\r
/*\r
Changes from V2.5.2\r
\r
/* Constants required for hardware setup. The tick ISR runs off the ACLK, \r
not the MCLK. */\r
-#define portACLK_FREQUENCY_HZ ( ( portTickType ) 32768 )\r
-#define portINITIAL_CRITICAL_NESTING ( ( unsigned short ) 10 )\r
-#define portFLAGS_INT_ENABLED ( ( portSTACK_TYPE ) 0x08 )\r
+#define portACLK_FREQUENCY_HZ ( ( TickType_t ) 32768 )\r
+#define portINITIAL_CRITICAL_NESTING ( ( uint16_t ) 10 )\r
+#define portFLAGS_INT_ENABLED ( ( StackType_t ) 0x08 )\r
\r
/* We require the address of the pxCurrentTCB variable, but don't want to know\r
any details of its type. */\r
-typedef void tskTCB;\r
-extern volatile tskTCB * volatile pxCurrentTCB;\r
+typedef void TCB_t;\r
+extern volatile TCB_t * volatile pxCurrentTCB;\r
\r
/* Most ports implement critical sections by placing the interrupt flags on\r
the stack before disabling interrupts. Exiting the critical section is then\r
usCriticalNesting will get set to zero when the scheduler starts, but must\r
not be initialised to zero as this will cause problems during the startup\r
sequence. */\r
-volatile unsigned short usCriticalNesting = portINITIAL_CRITICAL_NESTING;\r
+volatile uint16_t usCriticalNesting = portINITIAL_CRITICAL_NESTING;\r
/*-----------------------------------------------------------*/\r
\r
/* \r
* \r
* See the header file portable.h.\r
*/\r
-portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )\r
+StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )\r
{\r
/* \r
Place a few bytes of known values on the bottom of the stack. \r
This is just useful for debugging and can be included if required.\r
\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x1111;\r
+ *pxTopOfStack = ( StackType_t ) 0x1111;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x2222;\r
+ *pxTopOfStack = ( StackType_t ) 0x2222;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x3333;\r
+ *pxTopOfStack = ( StackType_t ) 0x3333;\r
pxTopOfStack--; \r
*/\r
\r
executing an ISR. We want the stack to look just as if this has happened\r
so place a pointer to the start of the task on the stack first - followed\r
by the flags we want the task to use when it starts up. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) pxCode;\r
+ *pxTopOfStack = ( StackType_t ) pxCode;\r
pxTopOfStack--;\r
*pxTopOfStack = portFLAGS_INT_ENABLED;\r
pxTopOfStack--;\r
\r
/* Next the general purpose registers. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x4444;\r
+ *pxTopOfStack = ( StackType_t ) 0x4444;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x5555;\r
+ *pxTopOfStack = ( StackType_t ) 0x5555;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x6666;\r
+ *pxTopOfStack = ( StackType_t ) 0x6666;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x7777;\r
+ *pxTopOfStack = ( StackType_t ) 0x7777;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x8888;\r
+ *pxTopOfStack = ( StackType_t ) 0x8888;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0x9999;\r
+ *pxTopOfStack = ( StackType_t ) 0x9999;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0xaaaa;\r
+ *pxTopOfStack = ( StackType_t ) 0xaaaa;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0xbbbb;\r
+ *pxTopOfStack = ( StackType_t ) 0xbbbb;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0xcccc;\r
+ *pxTopOfStack = ( StackType_t ) 0xcccc;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0xdddd;\r
+ *pxTopOfStack = ( StackType_t ) 0xdddd;\r
pxTopOfStack--;\r
- *pxTopOfStack = ( portSTACK_TYPE ) 0xeeee;\r
+ *pxTopOfStack = ( StackType_t ) 0xeeee;\r
pxTopOfStack--;\r
\r
/* When the task starts is will expect to find the function parameter in\r
R15. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) pvParameters;\r
+ *pxTopOfStack = ( StackType_t ) pvParameters;\r
pxTopOfStack--;\r
\r
/* The code generated by the mspgcc compiler does not maintain separate\r
use the stack as per other ports. Instead a variable is used to keep\r
track of the critical section nesting. This variable has to be stored\r
as part of the task context and is initially set to zero. */\r
- *pxTopOfStack = ( portSTACK_TYPE ) portNO_CRITICAL_SECTION_NESTING; \r
+ *pxTopOfStack = ( StackType_t ) portNO_CRITICAL_SECTION_NESTING; \r
\r
/* Return a pointer to the top of the stack we have generated so this can\r
be stored in the task control block for the task. */\r
}\r
/*-----------------------------------------------------------*/\r
\r
-portBASE_TYPE xPortStartScheduler( void )\r
+BaseType_t xPortStartScheduler( void )\r
{\r
/* Setup the hardware to generate the tick. Interrupts are disabled when\r
this function is called. */\r
\r
/* Increment the tick count then switch to the highest priority task\r
that is ready to run. */\r
- vTaskIncrementTick();\r
- vTaskSwitchContext();\r
+ if( xTaskIncrementTick() != pdFALSE )\r
+ {\r
+ vTaskSwitchContext();\r
+ }\r
\r
/* Restore the context of the new task. */\r
portRESTORE_CONTEXT();\r
interrupt (TIMERA0_VECTOR) prvTickISR( void );\r
interrupt (TIMERA0_VECTOR) prvTickISR( void )\r
{\r
- vTaskIncrementTick();\r
+ xTaskIncrementTick();\r
}\r
#endif\r
\r
projects / freertos / blobdiff