FreeRTOS portable files for this simulator
This commit is contained in:
mariusmonton
parent
a87743b92d
commit
1c50b22c27
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#include "FreeRTOS.h"
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#include "task.h"
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#include "queue.h"
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#include "timers.h"
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#include<stdio.h>
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#define TRACE (*(unsigned char *)0x40000000)
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extern void register_timer_isr();
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QueueHandle_t my_queue = NULL;
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static void task_1(void *pParameter) {
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int data = 5;
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printf("Task 1 starts\n");
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while(1) {
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printf("T1: Tick %ld\n", xTaskGetTickCount() );
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xQueueSend(my_queue, &data, portMAX_DELAY);
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vTaskDelay(100 / portTICK_PERIOD_MS);
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}
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}
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static void task_2(void *pParameter) {
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int data = 7;
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printf("Task 2 starts\n");
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while(1) {
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printf("T2: Tick %ld\n", xTaskGetTickCount() );
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xQueueSend(my_queue, &data, portMAX_DELAY);
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vTaskDelay(500 / portTICK_PERIOD_MS);
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}
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}
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static void task_3(void *pParameter) {
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int data;
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printf("Task 3 starts\n");
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while(1) {
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xQueueReceive(my_queue, &data, portMAX_DELAY);
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printf("T3: Tick %ld. Recv: %ld\n", xTaskGetTickCount(), data);
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//vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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}
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int main( void )
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{
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printf("Starting FreeRTOS test\n");
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/* register ISR */
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register_timer_isr();
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my_queue = xQueueCreate(10, sizeof(int));
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/* Create tasks */
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xTaskCreate(task_1, "Task1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY+1, NULL);
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xTaskCreate(task_2, "Task2", 10000, NULL, tskIDLE_PRIORITY+1, NULL);
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xTaskCreate(task_3, "Task3", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY+1, NULL);
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/* Start the kernel. From here on, only tasks and interrupts will run. */
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vTaskStartScheduler();
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/* Exit FreeRTOS */
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return 0;
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}
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void vApplicationMallocFailedHook( void )
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{
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/* vApplicationMallocFailedHook() will only be called if
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configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
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function that will get called if a call to pvPortMalloc() fails.
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pvPortMalloc() is called internally by the kernel whenever a task, queue,
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timer or semaphore is created. It is also called by various parts of the
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demo application. If heap_1.c or heap_2.c are used, then the size of the
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heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
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FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
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to query the size of free heap space that remains (although it does not
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provide information on how the remaining heap might be fragmented). */
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taskDISABLE_INTERRUPTS();
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TRACE='M';
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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void vApplicationIdleHook( void )
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{
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/* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
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to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
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task. It is essential that code added to this hook function never attempts
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to block in any way (for example, call xQueueReceive() with a block time
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specified, or call vTaskDelay()). If the application makes use of the
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vTaskDelete() API function (as this demo application does) then it is also
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important that vApplicationIdleHook() is permitted to return to its calling
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function, because it is the responsibility of the idle task to clean up
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memory allocated by the kernel to any task that has since been deleted. */
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}
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/*-----------------------------------------------------------*/
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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{
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( void ) pcTaskName;
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( void ) pxTask;
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/* Run time stack overflow checking is performed if
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configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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function is called if a stack overflow is detected. */
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taskDISABLE_INTERRUPTS();
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TRACE = 'S';
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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@ -0,0 +1,262 @@
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/*
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FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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This file is part of the FreeRTOS distribution and was contributed
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to the project by Technolution B.V. (www.technolution.nl,
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freertos-riscv@technolution.eu) under the terms of the FreeRTOS
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contributors license.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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***************************************************************************
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>>! NOTE: The modification to the GPL is included to allow you to !<<
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>>! distribute a combined work that includes FreeRTOS without being !<<
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>>! obliged to provide the source code for proprietary components !<<
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>>! outside of the FreeRTOS kernel. !<<
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***************************************************************************
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. Full license text is available on the following
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link: http://www.freertos.org/a00114.html
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***************************************************************************
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* *
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* FreeRTOS provides completely free yet professionally developed, *
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* robust, strictly quality controlled, supported, and cross *
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* platform software that is more than just the market leader, it *
|
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* is the industry's de facto standard. *
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* *
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* Help yourself get started quickly while simultaneously helping *
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* to support the FreeRTOS project by purchasing a FreeRTOS *
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* tutorial book, reference manual, or both: *
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* http://www.FreeRTOS.org/Documentation *
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* *
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***************************************************************************
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http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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the FAQ page "My application does not run, what could be wrong?". Have you
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defined configASSERT()?
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|
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http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
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http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
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Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
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http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
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http://www.SafeRTOS.com - High Integrity Systems also provide a safety
|
||||
engineered and independently SIL3 certified version for use in safety and
|
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mission critical applications that require provable dependability.
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1 tab == 4 spaces!
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*/
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/*-----------------------------------------------------------
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* Implementation of functions defined in portable.h for the RISC-V port.
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*----------------------------------------------------------*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "portmacro.h"
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#include <stdio.h>
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#define TIMER (*(uint64_t *)0x40004000)
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#define TIMER_CMP (*(uint64_t *)0x40004008)
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#define TRACE (*(unsigned char *)0x40000000)
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/* A variable is used to keep track of the critical section nesting. This
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variable has to be stored as part of the task context and must be initialised to
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a non zero value to ensure interrupts don't inadvertently become unmasked before
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the scheduler starts. As it is stored as part of the task context it will
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automatically be set to 0 when the first task is started. */
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static UBaseType_t uxCriticalNesting = 0xaaaaaaaa;
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/* Contains context when starting scheduler, save all 31 registers */
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#ifdef __gracefulExit
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BaseType_t xStartContext[31] = {0};
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#endif
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/*
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* Handler for timer interrupt
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*/
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void vPortSysTickHandler( void );
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/*
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* Setup the timer to generate the tick interrupts.
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*/
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void vPortSetupTimer( void );
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/*
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* Set the next interval for the timer
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*/
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static void prvSetNextTimerInterrupt( void );
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/*
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* Used to catch tasks that attempt to return from their implementing function.
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*/
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static void prvTaskExitError( void );
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int _write(int file, const char *ptr, int len) {
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int x;
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for (x = 0; x < len; x++) {
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TRACE = *ptr++;
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}
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return (len);
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}
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int _read(int file, char* ptr, int len) {
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}
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int _close(int fd){
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}
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int _fstat_r(int fd) {
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}
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int _lseek_r(struct _reent *ptr, FILE *fp, long offset, int whence){
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}
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int _isatty_r(struct _reent *ptr, int fd) {
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}
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void register_timer_isr() {
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printf("Registering ISR\n");
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asm volatile("la t0, TIMER_CMP_INT \n csrw mtvec, t0");
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asm volatile("li t1, 0x888 \n csrw mie, t1");
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}
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/*-----------------------------------------------------------*/
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/* Sets the next timer interrupt
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* Reads previous timer compare register, and adds tickrate */
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static void prvSetNextTimerInterrupt(void)
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{
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#if 0
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__asm volatile("csrr t0,mtimecmp");
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__asm volatile("add t0,t0,%0" :: "r"(configTICK_CLOCK_HZ / configTICK_RATE_HZ));
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__asm volatile("csrw mtimecmp,t0");
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#endif
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volatile uint32_t timer_value;
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timer_value = TIMER;
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// timer_value += configTICK_CLOCK_HZ / configTICK_RATE_HZ;
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timer_value += 10000 - 620; // timer set to 100 Hz and corrected
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TIMER_CMP = timer_value;
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// printf("ISR\n");
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}
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/*-----------------------------------------------------------*/
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/* Sets and enable the timer interrupt */
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void vPortSetupTimer(void)
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{
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#if 0
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__asm volatile("csrr t0,mtime");
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__asm volatile("add t0,t0,%0"::"r"(configTICK_CLOCK_HZ / configTICK_RATE_HZ));
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__asm volatile("csrw mtimecmp,t0");
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/* Enable timer interupt */
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__asm volatile("csrs mie,%0"::"r"(0x80));
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#endif
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volatile uint32_t timer_value;
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timer_value = TIMER;
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// timer_value += configTICK_CLOCK_HZ / configTICK_RATE_HZ;
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timer_value += 10000 - 620; // timer set to 100 Hz and corrected
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TIMER_CMP = timer_value;
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}
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/*-----------------------------------------------------------*/
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void prvTaskExitError( void )
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{
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/* A function that implements a task must not exit or attempt to return to
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its caller as there is nothing to return to. If a task wants to exit it
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should instead call vTaskDelete( NULL ).
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Artificially force an assert() to be triggered if configASSERT() is
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defined, then stop here so application writers can catch the error. */
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configASSERT( uxCriticalNesting == ~0UL );
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portDISABLE_INTERRUPTS();
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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/* Clear current interrupt mask and set given mask */
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void vPortClearInterruptMask(int mask)
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{
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__asm volatile("csrw mie, %0"::"r"(mask));
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}
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/*-----------------------------------------------------------*/
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/* Set interrupt mask and return current interrupt enable register */
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int vPortSetInterruptMask(void)
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{
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int ret;
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__asm volatile("csrr %0,mie":"=r"(ret));
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__asm volatile("csrc mie,%0"::"i"(7));
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return ret;
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}
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/*-----------------------------------------------------------*/
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/*
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* See header file for description.
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*/
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
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{
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/* Simulate the stack frame as it would be created by a context switch
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interrupt. */
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register int *tp asm("x3");
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pxTopOfStack--;
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*pxTopOfStack = (portSTACK_TYPE)pxCode; /* Start address */
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pxTopOfStack -= 22;
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*pxTopOfStack = (portSTACK_TYPE)pvParameters; /* Register a0 */
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pxTopOfStack -= 6;
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*pxTopOfStack = (portSTACK_TYPE)tp; /* Register thread pointer */
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pxTopOfStack -= 3;
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*pxTopOfStack = (portSTACK_TYPE)prvTaskExitError; /* Register ra */
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return pxTopOfStack;
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}
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/*-----------------------------------------------------------*/
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void vPortSysTickHandler( void )
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{
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prvSetNextTimerInterrupt();
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/* Increment the RTOS tick. */
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if( xTaskIncrementTick() != pdFALSE )
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{
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vTaskSwitchContext();
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}
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}
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/*-----------------------------------------------------------*/
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@ -0,0 +1,299 @@
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/*
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FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
This file is part of the FreeRTOS distribution and was contributed
|
||||
to the project by Technolution B.V. (www.technolution.nl,
|
||||
freertos-riscv@technolution.eu) under the terms of the FreeRTOS
|
||||
contributors license.
|
||||
|
||||
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. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that is more than just the market leader, it *
|
||||
* is the industry's de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
||||
* http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
||||
the FAQ page "My application does not run, what could be wrong?". Have you
|
||||
defined configASSERT()?
|
||||
|
||||
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
||||
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
||||
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.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
|
||||
#ifdef __riscv64
|
||||
# define STORE sd
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# define LOAD ld
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# define REGBYTES 8
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||||
#else
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||||
# define STORE sw
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||||
# define LOAD lw
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# define REGBYTES 4
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#endif
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#define MSTATUS_PRV1 0x30
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//#define MSTATUS_PRV1 0x1880
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|
||||
.global portSAVE_CONTEXT
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||||
.global portRESTORE_CONTEXT
|
||||
.global TIMER_CMP_INT
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||||
.global xPortStartScheduler
|
||||
.global vPortYield
|
||||
.global vTaskIncrementTick
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||||
.global vPortEndScheduler
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.global xExitStack
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||||
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/* Macro for saving task context */
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||||
.macro portSAVE_CONTEXT
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.global pxCurrentTCB
|
||||
/* make room in stack */
|
||||
addi sp, sp, -REGBYTES * 32
|
||||
|
||||
/* Save Context */
|
||||
STORE x1, 0x0(sp)
|
||||
STORE x2, 1 * REGBYTES(sp)
|
||||
STORE x3, 2 * REGBYTES(sp)
|
||||
STORE x4, 3 * REGBYTES(sp)
|
||||
STORE x5, 4 * REGBYTES(sp)
|
||||
STORE x6, 5 * REGBYTES(sp)
|
||||
STORE x7, 6 * REGBYTES(sp)
|
||||
STORE x8, 7 * REGBYTES(sp)
|
||||
STORE x9, 8 * REGBYTES(sp)
|
||||
STORE x10, 9 * REGBYTES(sp)
|
||||
STORE x11, 10 * REGBYTES(sp)
|
||||
STORE x12, 11 * REGBYTES(sp)
|
||||
STORE x13, 12 * REGBYTES(sp)
|
||||
STORE x14, 13 * REGBYTES(sp)
|
||||
STORE x15, 14 * REGBYTES(sp)
|
||||
STORE x16, 15 * REGBYTES(sp)
|
||||
STORE x17, 16 * REGBYTES(sp)
|
||||
STORE x18, 17 * REGBYTES(sp)
|
||||
STORE x19, 18 * REGBYTES(sp)
|
||||
STORE x20, 19 * REGBYTES(sp)
|
||||
STORE x21, 20 * REGBYTES(sp)
|
||||
STORE x22, 21 * REGBYTES(sp)
|
||||
STORE x23, 22 * REGBYTES(sp)
|
||||
STORE x24, 23 * REGBYTES(sp)
|
||||
STORE x25, 24 * REGBYTES(sp)
|
||||
STORE x26, 25 * REGBYTES(sp)
|
||||
STORE x27, 26 * REGBYTES(sp)
|
||||
STORE x28, 27 * REGBYTES(sp)
|
||||
STORE x29, 28 * REGBYTES(sp)
|
||||
STORE x30, 29 * REGBYTES(sp)
|
||||
STORE x31, 30 * REGBYTES(sp)
|
||||
|
||||
/* Store current stackpointer in task control block (TCB) */
|
||||
LOAD t0, pxCurrentTCB //pointer
|
||||
STORE sp, 0x0(t0)
|
||||
.endm
|
||||
|
||||
/* Saves current error program counter (EPC) as task program counter */
|
||||
.macro portSAVE_EPC
|
||||
csrr t0, mepc
|
||||
STORE t0, 31 * REGBYTES(sp)
|
||||
.endm
|
||||
|
||||
/* Saves current return adress (RA) as task program counter */
|
||||
.macro portSAVE_RA
|
||||
STORE ra, 31 * REGBYTES(sp)
|
||||
.endm
|
||||
|
||||
/* Macro for restoring task context */
|
||||
.macro portRESTORE_CONTEXT
|
||||
|
||||
.global pxCurrentTCB
|
||||
/* Load stack pointer from the current TCB */
|
||||
LOAD sp, pxCurrentTCB
|
||||
LOAD sp, 0x0(sp)
|
||||
|
||||
/* Load task program counter */
|
||||
LOAD t0, 31 * REGBYTES(sp)
|
||||
csrw mepc, t0
|
||||
|
||||
/* Run in machine mode */
|
||||
li t0, MSTATUS_PRV1
|
||||
csrs mstatus, t0
|
||||
|
||||
/* Restore registers,
|
||||
Skip global pointer because that does not change */
|
||||
LOAD x1, 0x0(sp)
|
||||
LOAD x4, 3 * REGBYTES(sp)
|
||||
LOAD x5, 4 * REGBYTES(sp)
|
||||
LOAD x6, 5 * REGBYTES(sp)
|
||||
LOAD x7, 6 * REGBYTES(sp)
|
||||
LOAD x8, 7 * REGBYTES(sp)
|
||||
LOAD x9, 8 * REGBYTES(sp)
|
||||
LOAD x10, 9 * REGBYTES(sp)
|
||||
LOAD x11, 10 * REGBYTES(sp)
|
||||
LOAD x12, 11 * REGBYTES(sp)
|
||||
LOAD x13, 12 * REGBYTES(sp)
|
||||
LOAD x14, 13 * REGBYTES(sp)
|
||||
LOAD x15, 14 * REGBYTES(sp)
|
||||
LOAD x16, 15 * REGBYTES(sp)
|
||||
LOAD x17, 16 * REGBYTES(sp)
|
||||
LOAD x18, 17 * REGBYTES(sp)
|
||||
LOAD x19, 18 * REGBYTES(sp)
|
||||
LOAD x20, 19 * REGBYTES(sp)
|
||||
LOAD x21, 20 * REGBYTES(sp)
|
||||
LOAD x22, 21 * REGBYTES(sp)
|
||||
LOAD x23, 22 * REGBYTES(sp)
|
||||
LOAD x24, 23 * REGBYTES(sp)
|
||||
LOAD x25, 24 * REGBYTES(sp)
|
||||
LOAD x26, 25 * REGBYTES(sp)
|
||||
LOAD x27, 26 * REGBYTES(sp)
|
||||
LOAD x28, 27 * REGBYTES(sp)
|
||||
LOAD x29, 28 * REGBYTES(sp)
|
||||
LOAD x30, 29 * REGBYTES(sp)
|
||||
LOAD x31, 30 * REGBYTES(sp)
|
||||
|
||||
addi sp, sp, REGBYTES * 32
|
||||
mret
|
||||
.endm
|
||||
|
||||
/* Macro for restoring task context */
|
||||
.align 2
|
||||
TIMER_CMP_INT:
|
||||
portSAVE_CONTEXT
|
||||
portSAVE_EPC
|
||||
jal vPortSysTickHandler
|
||||
portRESTORE_CONTEXT
|
||||
|
||||
xPortStartScheduler:
|
||||
#ifdef __gracefulExit
|
||||
/* Stores context when starting the scheduler in xStartContext.
|
||||
This is used for when you want to gracefully exit the scheduler.
|
||||
For example if you want to test multiple instances after each other in one test suite.
|
||||
*/
|
||||
la t0, xStartContext
|
||||
STORE x1, 0x0(t0)
|
||||
STORE x2, 1 * REGBYTES(t0)
|
||||
STORE x3, 2 * REGBYTES(t0)
|
||||
STORE x4, 3 * REGBYTES(t0)
|
||||
STORE x5, 4 * REGBYTES(t0)
|
||||
STORE x6, 5 * REGBYTES(t0)
|
||||
STORE x7, 6 * REGBYTES(t0)
|
||||
STORE x8, 7 * REGBYTES(t0)
|
||||
STORE x9, 8 * REGBYTES(t0)
|
||||
STORE x10, 9 * REGBYTES(t0)
|
||||
STORE x11, 10 * REGBYTES(t0)
|
||||
STORE x12, 11 * REGBYTES(t0)
|
||||
STORE x13, 12 * REGBYTES(t0)
|
||||
STORE x14, 13 * REGBYTES(t0)
|
||||
STORE x15, 14 * REGBYTES(t0)
|
||||
STORE x16, 15 * REGBYTES(t0)
|
||||
STORE x17, 16 * REGBYTES(t0)
|
||||
STORE x18, 17 * REGBYTES(t0)
|
||||
STORE x19, 18 * REGBYTES(t0)
|
||||
STORE x20, 19 * REGBYTES(t0)
|
||||
STORE x21, 20 * REGBYTES(t0)
|
||||
STORE x22, 21 * REGBYTES(t0)
|
||||
STORE x23, 22 * REGBYTES(t0)
|
||||
STORE x24, 23 * REGBYTES(t0)
|
||||
STORE x25, 24 * REGBYTES(t0)
|
||||
STORE x26, 25 * REGBYTES(t0)
|
||||
STORE x27, 26 * REGBYTES(t0)
|
||||
STORE x28, 27 * REGBYTES(t0)
|
||||
STORE x29, 28 * REGBYTES(t0)
|
||||
STORE x30, 29 * REGBYTES(t0)
|
||||
STORE x31, 30 * REGBYTES(t0)
|
||||
#endif
|
||||
jal vPortSetupTimer
|
||||
portRESTORE_CONTEXT
|
||||
|
||||
.align 2
|
||||
vPortEndScheduler:
|
||||
#ifdef __gracefulExit
|
||||
/* Load current context from xStartContext */
|
||||
la t0, xStartContext
|
||||
LOAD x1, 0x0(t0)
|
||||
LOAD x2, 1 * REGBYTES(t0)
|
||||
LOAD x3, 2 * REGBYTES(t0)
|
||||
LOAD x4, 3 * REGBYTES(t0)
|
||||
LOAD x5, 4 * REGBYTES(t0)
|
||||
LOAD x6, 5 * REGBYTES(t0)
|
||||
LOAD x7, 6 * REGBYTES(t0)
|
||||
LOAD x8, 7 * REGBYTES(t0)
|
||||
LOAD x9, 8 * REGBYTES(t0)
|
||||
LOAD x10, 9 * REGBYTES(t0)
|
||||
LOAD x11, 10 * REGBYTES(t0)
|
||||
LOAD x12, 11 * REGBYTES(t0)
|
||||
LOAD x13, 12 * REGBYTES(t0)
|
||||
LOAD x14, 13 * REGBYTES(t0)
|
||||
LOAD x15, 14 * REGBYTES(t0)
|
||||
LOAD x16, 15 * REGBYTES(t0)
|
||||
LOAD x17, 16 * REGBYTES(t0)
|
||||
LOAD x18, 17 * REGBYTES(t0)
|
||||
LOAD x19, 18 * REGBYTES(t0)
|
||||
LOAD x20, 19 * REGBYTES(t0)
|
||||
LOAD x21, 20 * REGBYTES(t0)
|
||||
LOAD x22, 21 * REGBYTES(t0)
|
||||
LOAD x23, 22 * REGBYTES(t0)
|
||||
LOAD x24, 23 * REGBYTES(t0)
|
||||
LOAD x25, 24 * REGBYTES(t0)
|
||||
LOAD x26, 25 * REGBYTES(t0)
|
||||
LOAD x27, 26 * REGBYTES(t0)
|
||||
LOAD x28, 27 * REGBYTES(t0)
|
||||
LOAD x29, 28 * REGBYTES(t0)
|
||||
LOAD x30, 39 * REGBYTES(t0)
|
||||
LOAD x31, 30 * REGBYTES(t0)
|
||||
#endif
|
||||
ret
|
||||
|
||||
.align 2
|
||||
vPortYield:
|
||||
csrci mstatus, 8
|
||||
portSAVE_CONTEXT
|
||||
portSAVE_RA
|
||||
jal vTaskSwitchContext
|
||||
portRESTORE_CONTEXT
|
||||
|
|
@ -0,0 +1,163 @@
|
|||
/*
|
||||
FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd.
|
||||
All rights reserved
|
||||
|
||||
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
|
||||
|
||||
This file is part of the FreeRTOS distribution and was contributed
|
||||
to the project by Technolution B.V. (www.technolution.nl,
|
||||
freertos-riscv@technolution.eu) under the terms of the FreeRTOS
|
||||
contributors license.
|
||||
|
||||
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. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS provides completely free yet professionally developed, *
|
||||
* robust, strictly quality controlled, supported, and cross *
|
||||
* platform software that is more than just the market leader, it *
|
||||
* is the industry's de facto standard. *
|
||||
* *
|
||||
* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
||||
* http://www.FreeRTOS.org/Documentation *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
||||
the FAQ page "My application does not run, what could be wrong?". Have you
|
||||
defined configASSERT()?
|
||||
|
||||
http://www.FreeRTOS.org/support - In return for receiving this top quality
|
||||
embedded software for free we request you assist our global community by
|
||||
participating in the support forum.
|
||||
|
||||
http://www.FreeRTOS.org/training - Investing in training allows your team to
|
||||
be as productive as possible as early as possible. Now you can receive
|
||||
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
|
||||
Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
||||
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
||||
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
||||
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
||||
|
||||
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
|
||||
licenses offer ticketed support, indemnification and commercial middleware.
|
||||
|
||||
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.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the
|
||||
* given hardware and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*-----------------------------------------------------------
|
||||
*/
|
||||
|
||||
/* Type definitions. */
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portBASE_TYPE long
|
||||
|
||||
#ifdef __riscv64
|
||||
#define portSTACK_TYPE uint64_t
|
||||
#define portPOINTER_SIZE_TYPE uint64_t
|
||||
#else
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portPOINTER_SIZE_TYPE uint32_t
|
||||
#endif
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Architecture specifics. */
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) (1000 / configTICK_RATE_HZ) )
|
||||
#ifdef __riscv64
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#else
|
||||
#define portBYTE_ALIGNMENT 4
|
||||
#endif
|
||||
#define portCRITICAL_NESTING_IN_TCB 1
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Scheduler utilities. */
|
||||
extern void vPortYield( void );
|
||||
#define portYIELD() vPortYield()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Critical section management. */
|
||||
extern int vPortSetInterruptMask( void );
|
||||
extern void vPortClearInterruptMask( int );
|
||||
extern void vTaskEnterCritical( void );
|
||||
extern void vTaskExitCritical( void );
|
||||
|
||||
#define portDISABLE_INTERRUPTS() __asm volatile ( "csrc mstatus,1" )
|
||||
#define portENABLE_INTERRUPTS() __asm volatile ( "csrs mstatus,1" )
|
||||
#define portENTER_CRITICAL() vTaskEnterCritical()
|
||||
#define portEXIT_CRITICAL() vTaskExitCritical()
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() vPortSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusValue ) vPortClearInterruptMask( uxSavedStatusValue )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Task function macros as described on the FreeRTOS.org WEB site. */
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
|
||||
#define portNOP() __asm volatile ( " nop " )
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
|
||||
Loading…
Reference in New Issue