/*\r
- FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.\r
-\r
- VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that has become a de facto standard. *\r
- * *\r
- * Help yourself get started quickly and support the FreeRTOS *\r
- * project by purchasing a FreeRTOS tutorial book, reference *\r
- * manual, or both from: http://www.FreeRTOS.org/Documentation *\r
- * *\r
- * Thank you! *\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
-\r
- >>! NOTE: The modification to the GPL is included to allow you to distribute\r
- >>! a combined work that includes FreeRTOS without being obliged to provide\r
- >>! the source code for proprietary components outside of the FreeRTOS\r
- >>! kernel.\r
-\r
- FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY\r
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\r
- FOR A PARTICULAR PURPOSE. Full license text is available from the following\r
- link: http://www.freertos.org/a00114.html\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
- http://www.FreeRTOS.org - Documentation, books, training, latest versions,\r
- license and Real Time Engineers Ltd. contact details.\r
-\r
- http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,\r
- including FreeRTOS+Trace - an indispensable productivity tool, a DOS\r
- compatible FAT file system, and our tiny thread aware UDP/IP stack.\r
-\r
- http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High\r
- Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and middleware.\r
-\r
- http://www.SafeRTOS.com - High Integrity Systems also provide a safety\r
- engineered and independently SIL3 certified version for use in safety and\r
- mission critical applications that require provable dependability.\r
-\r
- 1 tab == 4 spaces!\r
-*/\r
+ * FreeRTOS Kernel V10.3.0\r
+ * Copyright (C) 2020 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
/* Standard includes. */\r
#include "limits.h"\r
/* Constants required to pend a PendSV interrupt from the tick ISR if the\r
preemptive scheduler is being used. These are just standard bits and registers\r
within the Cortex-M core itself. */\r
-#define portNVIC_INT_CTRL_REG ( * ( ( volatile unsigned long * ) 0xe000ed04 ) )\r
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )\r
\r
/* The alarm used to generate interrupts in the asynchronous timer. */\r
/* Holds the maximum number of ticks that can be suppressed - which is\r
basically how far into the future an interrupt can be generated. Set\r
during initialisation. */\r
-static portTickType xMaximumPossibleSuppressedTicks = 0;\r
+static TickType_t xMaximumPossibleSuppressedTicks = 0;\r
\r
/* Flag set from the tick interrupt to allow the sleep processing to know if\r
sleep mode was exited because of an AST interrupt or a different interrupt. */\r
/*-----------------------------------------------------------*/\r
\r
/* Override the default definition of vPortSuppressTicksAndSleep() that is weakly\r
-defined in the FreeRTOS Cortex-M3 port layet with a version that manages the\r
+defined in the FreeRTOS Cortex-M3 port layer with a version that manages the\r
asynchronous timer (AST), as the tick is generated from the low power AST and\r
not the SysTick as would normally be the case on a Cortex-M. */\r
-void vPortSuppressTicksAndSleep( portTickType xExpectedIdleTime )\r
+void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime )\r
{\r
-uint32_t ulAlarmValue, ulCompleteTickPeriods;\r
+uint32_t ulAlarmValue, ulCompleteTickPeriods, ulInterruptStatus;\r
eSleepModeStatus eSleepAction;\r
-portTickType xModifiableIdleTime;\r
+TickType_t xModifiableIdleTime;\r
enum sleepmgr_mode xSleepMode;\r
\r
/* THIS FUNCTION IS CALLED WITH THE SCHEDULER SUSPENDED. */\r
\r
/* Enter a critical section but don't use the taskENTER_CRITICAL() method as\r
that will mask interrupts that should exit sleep mode. */\r
- __asm volatile( "cpsid i \n\t"\r
- "dsb \n\t" );\r
+ ulInterruptStatus = cpu_irq_save();\r
\r
/* The tick flag is set to false before sleeping. If it is true when sleep\r
mode is exited then sleep mode was probably exited because the tick was\r
\r
/* Re-enable interrupts - see comments above the cpsid instruction()\r
above. */\r
- __asm volatile( "cpsie i" );\r
+ cpu_irq_restore( ulInterruptStatus );\r
}\r
else\r
{\r
\r
/* Re-enable interrupts - see comments above the cpsid instruction()\r
above. */\r
- __asm volatile( "cpsie i" );\r
+ cpu_irq_restore( ulInterruptStatus );\r
\r
if( ulTickFlag != pdFALSE )\r
{\r
/* The alarm value is set to whatever fraction of a single tick\r
period remains. */\r
ulAlarmValue = ast_read_counter_value( AST ) - ( ulCompleteTickPeriods * ulAlarmValueForOneTick );\r
+ if( ulAlarmValue == 0 )\r
+ {\r
+ /* There is no fraction remaining. */\r
+ ulAlarmValue = ulAlarmValueForOneTick;\r
+ ulCompleteTickPeriods++;\r
+ }\r
+ ast_write_counter_value( AST, 0 );\r
ast_write_alarm0_value( AST, ulAlarmValue );\r
}\r
\r