/*\r
- FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.\r
- All rights reserved\r
-\r
- VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.\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
- ***************************************************************************\r
- >>! NOTE: The modification to the GPL is included to allow you to !<<\r
- >>! distribute a combined work that includes FreeRTOS without being !<<\r
- >>! obliged to provide the source code for proprietary components !<<\r
- >>! outside of the FreeRTOS kernel. !<<\r
- ***************************************************************************\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 on the following\r
- link: http://www.freertos.org/a00114.html\r
-\r
- ***************************************************************************\r
- * *\r
- * FreeRTOS provides completely free yet professionally developed, *\r
- * robust, strictly quality controlled, supported, and cross *\r
- * platform software that is more than just the market leader, it *\r
- * is the industry's de facto standard. *\r
- * *\r
- * Help yourself get started quickly while simultaneously helping *\r
- * to support the FreeRTOS project by purchasing a FreeRTOS *\r
- * tutorial book, reference manual, or both: *\r
- * http://www.FreeRTOS.org/Documentation *\r
- * *\r
- ***************************************************************************\r
-\r
- http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading\r
- the FAQ page "My application does not run, what could be wrong?". Have you\r
- defined configASSERT()?\r
-\r
- http://www.FreeRTOS.org/support - In return for receiving this top quality\r
- embedded software for free we request you assist our global community by\r
- participating in the support forum.\r
-\r
- http://www.FreeRTOS.org/training - Investing in training allows your team to\r
- be as productive as possible as early as possible. Now you can receive\r
- FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers\r
- Ltd, and the world's leading authority on the world's leading RTOS.\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.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.\r
- Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.\r
-\r
- http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High\r
- Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS\r
- licenses offer ticketed support, indemnification and commercial 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
/******************************************************************************\r
+ *\r
+ * See http://www.freertos.org/RTOS-Xilinx-Zynq.html for instructions.\r
+ *\r
* This project provides three demo applications. A simple blinky style\r
* project, a more comprehensive test and demo application, and an lwIP example.\r
* The mainSELECTED_APPLICATION setting (defined in this file) is used to\r
* !!! IMPORTANT NOTE !!!\r
* The GCC libraries that ship with the Xilinx SDK make use of the floating\r
* point registers. To avoid this causing corruption it is necessary to avoid\r
- * their use. For this reason main.c contains very basic C implementations of\r
- * the standard C library functions memset(), memcpy() and memcmp(), which are\r
- * are used by FreeRTOS itself. Defining these functions in the project\r
- * prevents the linker pulling them in from the library. Any other standard C\r
- * library functions that are used by the application must likewise be defined\r
- * in C.\r
+ * their use unless a task has been given a floating point context. See\r
+ * http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html\r
+ * for information on how to give a task a floating point context, and how to\r
+ * handle floating point operations in interrupts. As this demo does not give\r
+ * all tasks a floating point context main.c contains very basic C\r
+ * implementations of the standard C library functions memset(), memcpy() and\r
+ * memcmp(), which are are used by FreeRTOS itself. Defining these functions in\r
+ * the project prevents the linker pulling them in from the library. Any other\r
+ * standard C library functions that are used by the application must likewise\r
+ * be defined in C.\r
*\r
* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON\r
* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO\r
#include "EventGroupsDemo.h"\r
#include "TaskNotify.h"\r
#include "IntSemTest.h"\r
+#include "StreamBufferInterrupt.h"\r
+#include "StreamBufferDemo.h"\r
+#include "QueueSet.h"\r
\r
/* Xilinx includes. */\r
#include "platform.h"\r
#include "xscutimer.h"\r
#include "xscugic.h"\r
#include "xil_exception.h"\r
+#include "xuartps_hw.h"\r
\r
/* mainSELECTED_APPLICATION is used to select between three demo applications,\r
* as described at the top of this file.\r
*\r
* When mainSELECTED_APPLICATION is set to 2 the lwIP example will be run.\r
*/\r
-#define mainSELECTED_APPLICATION 0\r
+#define mainSELECTED_APPLICATION 1\r
\r
/*-----------------------------------------------------------*/\r
\r
\r
int main( void )\r
{\r
+ /* See http://www.freertos.org/RTOS-Xilinx-Zynq.html for instructions. */\r
+\r
/* Configure the hardware ready to run the demo. */\r
prvSetupHardware();\r
\r
- /* The mainSELECTED_APPLICATION setting is described at the top\r
- of this file. */\r
+ /* The mainSELECTED_APPLICATION setting is described at the top of this\r
+ file. */\r
#if( mainSELECTED_APPLICATION == 0 )\r
{\r
main_blinky();\r
FreeRTOS_asm_vectors.S, which is part of this project. Switch to use the\r
FreeRTOS vector table. */\r
vPortInstallFreeRTOSVectorTable();\r
+\r
+ /* Initialise UART for use with QEMU. */\r
+ XUartPs_ResetHw( 0xE0000000 );\r
+ XUartPs_WriteReg(0xE0000000, XUARTPS_CR_OFFSET,\r
+ ((u32)XUARTPS_CR_RX_DIS | (u32)XUARTPS_CR_TX_EN |\r
+ (u32)XUARTPS_CR_STOPBRK));\r
}\r
/*-----------------------------------------------------------*/\r
\r
\r
void vApplicationIdleHook( void )\r
{\r
-volatile size_t xFreeHeapSpace;\r
+volatile size_t xFreeHeapSpace, xMinimumEverFreeHeapSpace;\r
\r
/* This is just a trivial example of an idle hook. It is called on each\r
cycle of the idle task. It must *NOT* attempt to block. In this case the\r
configTOTAL_HEAP_SIZE value in FreeRTOSConfig.h can be reduced to free up\r
RAM. */\r
xFreeHeapSpace = xPortGetFreeHeapSize();\r
+ xMinimumEverFreeHeapSpace = xPortGetMinimumEverFreeHeapSize();\r
\r
/* Remove compiler warning about xFreeHeapSpace being set but never used. */\r
( void ) xFreeHeapSpace;\r
+ ( void ) xMinimumEverFreeHeapSpace;\r
}\r
/*-----------------------------------------------------------*/\r
\r
\r
/* Use mutexes from interrupts. */\r
vInterruptSemaphorePeriodicTest();\r
+\r
+ /* Writes to stream buffer byte by byte to test the stream buffer trigger\r
+ level functionality. */\r
+ vPeriodicStreamBufferProcessing();\r
+\r
+ /* Writes a string to a string buffer four bytes at a time to demonstrate\r
+ a stream being sent from an interrupt to a task. */\r
+ vBasicStreamBufferSendFromISR();\r
+\r
+ #if( configUSE_QUEUE_SETS == 1 )\r
+ {\r
+ vQueueSetAccessQueueSetFromISR();\r
+ }\r
+ #endif\r
+\r
+ /* Test flop alignment in interrupts - calling printf from an interrupt\r
+ is BAD! */\r
+ #if( configASSERT_DEFINED == 1 )\r
+ {\r
+ char cBuf[ 20 ];\r
+ UBaseType_t uxSavedInterruptStatus;\r
+\r
+ uxSavedInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
+ {\r
+ sprintf( cBuf, "%1.3f", 1.234 );\r
+ }\r
+ portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus );\r
+\r
+ configASSERT( strcmp( cBuf, "1.234" ) == 0 );\r
+ }\r
+ #endif /* configASSERT_DEFINED */\r
}\r
#endif\r
}\r
/*-----------------------------------------------------------*/\r
\r
-void *memcpy( void *pvDest, const void *pvSource, size_t ulBytes )\r
+void *memcpy( void *pvDest, const void *pvSource, size_t xBytes )\r
{\r
-unsigned char *pcDest = ( unsigned char * ) pvDest, *pcSource = ( unsigned char * ) pvSource;\r
+/* The compiler used during development seems to err unless these volatiles are\r
+included at -O3 optimisation. */\r
+volatile unsigned char *pcDest = ( volatile unsigned char * ) pvDest, *pcSource = ( volatile unsigned char * ) pvSource;\r
size_t x;\r
\r
- for( x = 0; x < ulBytes; x++ )\r
+ /* Extremely crude standard library implementations in lieu of having a C\r
+ library. */\r
+ if( pvDest != pvSource )\r
{\r
- *pcDest = *pcSource;\r
- pcDest++;\r
- pcSource++;\r
+ for( x = 0; x < xBytes; x++ )\r
+ {\r
+ pcDest[ x ] = pcSource[ x ];\r
+ }\r
}\r
\r
return pvDest;\r
}\r
/*-----------------------------------------------------------*/\r
\r
-void *memset( void *pvDest, int iValue, size_t ulBytes )\r
+void *memset( void *pvDest, int iValue, size_t xBytes )\r
{\r
-unsigned char *pcDest = ( unsigned char * ) pvDest;\r
-size_t x;\r
-\r
- for( x = 0; x < ulBytes; x++ )\r
+/* The compiler used during development seems to err unless these volatiles are\r
+included at -O3 optimisation. */\r
+volatile unsigned char * volatile pcDest = ( volatile unsigned char * volatile ) pvDest;\r
+volatile size_t x;\r
+\r
+ /* Extremely crude standard library implementations in lieu of having a C\r
+ library. */\r
+ for( x = 0; x < xBytes; x++ )\r
{\r
- *pcDest = ( unsigned char ) iValue;\r
- pcDest++;\r
+ pcDest[ x ] = ( unsigned char ) iValue;\r
}\r
\r
return pvDest;\r
}\r
/*-----------------------------------------------------------*/\r
\r
-int memcmp( const void *pvMem1, const void *pvMem2, size_t ulBytes )\r
+int memcmp( const void *pvMem1, const void *pvMem2, size_t xBytes )\r
{\r
-const unsigned char *pucMem1 = pvMem1, *pucMem2 = pvMem2;\r
-size_t x;\r
+const volatile unsigned char *pucMem1 = pvMem1, *pucMem2 = pvMem2;\r
+volatile size_t x;\r
\r
- for( x = 0; x < ulBytes; x++ )\r
- {\r
- if( pucMem1[ x ] != pucMem2[ x ] )\r
- {\r
- break;\r
- }\r
- }\r
+ /* Extremely crude standard library implementations in lieu of having a C\r
+ library. */\r
+ for( x = 0; x < xBytes; x++ )\r
+ {\r
+ if( pucMem1[ x ] != pucMem2[ x ] )\r
+ {\r
+ break;\r
+ }\r
+ }\r
\r
- return ulBytes - x;\r
+ return xBytes - x;\r
}\r
/*-----------------------------------------------------------*/\r
\r
XScuWdt_SetTimerMode( &xWatchDogInstance );\r
XScuWdt_Start( &xWatchDogInstance );\r
}\r
+/*-----------------------------------------------------------*/\r
\r
+/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an\r
+implementation of vApplicationGetIdleTaskMemory() to provide the memory that is\r
+used by the Idle task. */\r
+void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )\r
+{\r
+/* If the buffers to be provided to the Idle task are declared inside this\r
+function then they must be declared static - otherwise they will be allocated on\r
+the stack and so not exists after this function exits. */\r
+static StaticTask_t xIdleTaskTCB;\r
+static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];\r
+\r
+ /* Pass out a pointer to the StaticTask_t structure in which the Idle task's\r
+ state will be stored. */\r
+ *ppxIdleTaskTCBBuffer = &xIdleTaskTCB;\r
+\r
+ /* Pass out the array that will be used as the Idle task's stack. */\r
+ *ppxIdleTaskStackBuffer = uxIdleTaskStack;\r
+\r
+ /* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.\r
+ Note that, as the array is necessarily of type StackType_t,\r
+ configMINIMAL_STACK_SIZE is specified in words, not bytes. */\r
+ *pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;\r
+}\r
+/*-----------------------------------------------------------*/\r
+\r
+/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the\r
+application must provide an implementation of vApplicationGetTimerTaskMemory()\r
+to provide the memory that is used by the Timer service task. */\r
+void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize )\r
+{\r
+/* If the buffers to be provided to the Timer task are declared inside this\r
+function then they must be declared static - otherwise they will be allocated on\r
+the stack and so not exists after this function exits. */\r
+static StaticTask_t xTimerTaskTCB;\r
+static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];\r
+\r
+ /* Pass out a pointer to the StaticTask_t structure in which the Timer\r
+ task's state will be stored. */\r
+ *ppxTimerTaskTCBBuffer = &xTimerTaskTCB;\r
+\r
+ /* Pass out the array that will be used as the Timer task's stack. */\r
+ *ppxTimerTaskStackBuffer = uxTimerTaskStack;\r
+\r
+ /* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.\r
+ Note that, as the array is necessarily of type StackType_t,\r
+ configMINIMAL_STACK_SIZE is specified in words, not bytes. */\r
+ *pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;\r
+}\r
\r
\r