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Backup checking of the Freedom Studio RISC-V project - still a work in progress.
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Richard Barry
parent
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commit
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8 changed files with 801 additions and 277 deletions
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// See LICENSE for license details.
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/*
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* FreeRTOS Kernel V10.1.1
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* Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/* FreeRTOS kernel includes. */
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#include <FreeRTOS.h>
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#include <task.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "platform.h"
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#include <string.h>
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#include "plic/plic_driver.h"
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#include "encoding.h"
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#include <unistd.h>
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#include "stdatomic.h"
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/******************************************************************************
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* This project provides two demo applications. A simple blinky style project,
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* and a more comprehensive test and demo application. The
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* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
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* select between the two. The simply blinky demo is implemented and described
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* in main_blinky.c. The more comprehensive test and demo application is
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* implemented and described in main_full.c.
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*
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* This file implements the code that is not demo specific, including the
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* hardware setup and standard FreeRTOS hook functions.
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*
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* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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* APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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*
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*/
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/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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or 0 to run the more comprehensive test and demo application. */
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#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
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/*
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* FreeRTOS hook for when malloc fails, enable in FreeRTOSConfig.
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* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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*/
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#if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1
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extern void main_blinky( void );
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#else
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extern void main_full( void );
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#endif /* #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
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/* Prototypes for the standard FreeRTOS callback/hook functions implemented
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within this file. See https://www.freertos.org/a00016.html */
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void vApplicationMallocFailedHook( void );
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/*
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* FreeRTOS hook for when FreeRtos is idling, enable in FreeRTOSConfig.
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*/
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void vApplicationIdleHook( void );
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/*
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* FreeRTOS hook for when a stack overflow occurs, enable in FreeRTOSConfig.
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*/
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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void vApplicationTickHook( void );
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void vRegTest1Task( void *pvParameters );
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void vRegTest2Task( void *pvParameters );
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const char * const pcStartMessage = "FreeRTOS demo\r\n";
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volatile uint32_t ulRegTest1LoopCounter = 0, ulRegTest2LoopCounter = 0;
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static void prvCheckTask( void *pvParameters );
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plic_instance_t g_plic;
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uint32_t bitbang_mask = 0;
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/*-----------------------------------------------------------*/
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int main( void )
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{
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#ifdef HAS_BOARD_BUTTONS
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GPIO_REG(GPIO_OUTPUT_EN) &= ~((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
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GPIO_REG(GPIO_PULLUP_EN) &= ~((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
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GPIO_REG(GPIO_INPUT_EN) |= ((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
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#endif
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GPIO_REG(GPIO_INPUT_EN) &= ~((0x1<< RED_LED_OFFSET) | (0x1<< GREEN_LED_OFFSET) | (0x1 << BLUE_LED_OFFSET)) ;
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GPIO_REG(GPIO_OUTPUT_EN) |= ((0x1<< RED_LED_OFFSET)| (0x1<< GREEN_LED_OFFSET) | (0x1 << BLUE_LED_OFFSET)) ;
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GPIO_REG(GPIO_OUTPUT_VAL) |= (0x1 << BLUE_LED_OFFSET) ;
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GPIO_REG(GPIO_OUTPUT_VAL) &= ~((0x1<< RED_LED_OFFSET) | (0x1<< GREEN_LED_OFFSET)) ;
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/* For Bit-banging with Atomics demo. */
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#ifdef _SIFIVE_HIFIVE1_H
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bitbang_mask = (1 << PIN_19_OFFSET);
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#else
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#ifdef _SIFIVE_COREPLEXIP_ARTY_H
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bitbang_mask = (0x1 << JA_0_OFFSET);
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#endif
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#endif
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GPIO_REG(GPIO_OUTPUT_EN) |= bitbang_mask;
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// xTaskCreate( vRegTest1Task, "RegTest1", 1000, NULL, tskIDLE_PRIORITY, NULL );
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// xTaskCreate( vRegTest2Task, "RegTest2", 1000, NULL, tskIDLE_PRIORITY, NULL );
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xTaskCreate( prvCheckTask, "Check", 1000, NULL, configMAX_PRIORITIES - 1, NULL );
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vTaskStartScheduler();
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}
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/*-----------------------------------------------------------*/
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static void prvCheckTask( void *pvParameters )
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{
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const char *pcMessage = "PASS\r\n";
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const TickType_t xCheckPeriod = pdMS_TO_TICKS( 3000UL );
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uint32_t ulLastRegTest1LoopCounter = 0, ulLastRegTest2LoopCounter = 0;
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volatile uintptr_t mstatus;
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volatile uint32_t ulx;
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__asm volatile ("csrr %0, mstatus" : "=r"(mstatus));
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portENABLE_INTERRUPTS();
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__asm volatile ("csrr %0, mstatus" : "=r"(mstatus));
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for( ;; )
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{
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// for( ulx = 0; ulx < 0xffff; ulx++ ) __asm volatile( "NOP" );
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// vPortSetupTimerInterrupt();
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vTaskDelay( xCheckPeriod );
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write( STDOUT_FILENO, "Blip\r\n", strlen( "Blip\r\n" ) );
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}
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#if 0
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for( ;; )
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/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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of this file. */
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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{
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vTaskDelay( xCheckPeriod );
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if( ulLastRegTest1LoopCounter == ulRegTest1LoopCounter )
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{
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/* The RegTest1 loop counter is no longer incrementing, indicating
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the task failed its self check. */
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pcMessage = "FAIL: RegTest1\r\n";
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}
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else
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{
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ulLastRegTest1LoopCounter = ulRegTest1LoopCounter;
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}
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if( ulLastRegTest2LoopCounter == ulRegTest2LoopCounter )
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{
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/* The RegTest1 loop counter is no longer incrementing, indicating
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the task failed its self check. */
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pcMessage = "FAIL: RegTest2\r\n";
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}
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else
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{
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ulLastRegTest2LoopCounter = ulRegTest2LoopCounter;
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}
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vUARTWriteString( pcMessage );
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main_blinky();
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}
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#endif
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#else
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{
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main_full();
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}
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#endif
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}
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/*-----------------------------------------------------------*/
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@ -137,6 +98,7 @@ void vApplicationMallocFailedHook( void )
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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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// __asm volatile( "ebreak" );
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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@ -164,39 +126,26 @@ void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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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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// __asm volatile( "ebreak" );
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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#define mainINTERRUPT_BIT_SET 0x80000000UL
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#define mainENVIRONMENT_CALL 11UL
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#define mainEXTERNAL_INTERRRUPT ( mainINTERRUPT_BIT_SET | 11UL )
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#define mainTIMER_INTERRUPT ( mainINTERRUPT_BIT_SET | 7UL )
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#define mainSOFTWARE_INTERRUPT ( mainINTERRUPT_BIT_SET | 3UL )
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extern void Timer_IRQHandler( void );
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uint32_t ulPortTrapHandler( uint32_t mcause, uint32_t mepc )
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void vApplicationTickHook( void )
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{
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if( mcause == mainENVIRONMENT_CALL )
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/* The tests in the full demo expect some interaction with interrupts. */
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
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{
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vTaskSwitchContext();
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/* Ensure not to return to the instruction that generated the exception. */
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mepc += 4;
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extern void vFullDemoTickHook( void );
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vFullDemoTickHook();
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}
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else if( mcause == mainEXTERNAL_INTERRRUPT )
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{
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for( ;; );
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}
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else if( mcause == mainTIMER_INTERRUPT )
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{
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Timer_IRQHandler();
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}
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else if( mcause == mainSOFTWARE_INTERRUPT )
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{
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for( ;; );
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}
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return mepc;
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#endif
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}
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/*-----------------------------------------------------------*/
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void vAssertCalled( void )
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{
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taskDISABLE_INTERRUPTS();
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// __asm volatile( "ebreak" );
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for( ;; );
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}
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