X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FSource%2Fportable%2FRenesas%2FSH2A_FPU%2Fport.c;h=2178e349c3872125d5565dd1816a3283a933e09f;hb=b15dfacb6026af3b0ba697e5753844923b468d2b;hp=477830cc6fd74e381073e408a3350afff9472297;hpb=3d511cabadf346c67f0f56e15e999c02ca0393ed;p=freertos diff --git a/FreeRTOS/Source/portable/Renesas/SH2A_FPU/port.c b/FreeRTOS/Source/portable/Renesas/SH2A_FPU/port.c index 477830cc6..2178e349c 100644 --- a/FreeRTOS/Source/portable/Renesas/SH2A_FPU/port.c +++ b/FreeRTOS/Source/portable/Renesas/SH2A_FPU/port.c @@ -1,67 +1,29 @@ /* - FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd. - All rights reserved - - VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that has become a de facto standard. * - * * - * Help yourself get started quickly and support the FreeRTOS * - * project by purchasing a FreeRTOS tutorial book, reference * - * manual, or both from: http://www.FreeRTOS.org/Documentation * - * * - * Thank you! * - * * - *************************************************************************** - - This file is part of the FreeRTOS distribution. - - 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 from the following - link: http://www.freertos.org/a00114.html - - 1 tab == 4 spaces! - - *************************************************************************** - * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * - * * - * http://www.FreeRTOS.org/FAQHelp.html * - * * - *************************************************************************** - - http://www.FreeRTOS.org - Documentation, books, training, latest versions, - license and Real Time Engineers Ltd. contact details. - - 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.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and 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! -*/ + * FreeRTOS Kernel V10.3.0 + * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to + * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of + * the Software, and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR + * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ /*----------------------------------------------------------- * Implementation of functions defined in portable.h for the SH2A port. @@ -80,13 +42,17 @@ value is for all interrupts to be enabled. */ #define portINITIAL_SR ( 0UL ) -/* Dimensions the array into which the floating point context is saved. +/* Dimensions the array into which the floating point context is saved. Allocate enough space for FPR0 to FPR15, FPUL and FPSCR, each of which is 4 bytes big. If this number is changed then the 72 in portasm.src also needs changing. */ #define portFLOP_REGISTERS_TO_STORE ( 18 ) #define portFLOP_STORAGE_SIZE ( portFLOP_REGISTERS_TO_STORE * 4 ) +#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 ) + #error configSUPPORT_DYNAMIC_ALLOCATION must be 1 to use this port. +#endif + /*-----------------------------------------------------------*/ /* @@ -106,8 +72,8 @@ extern uint32_t ulPortGetGBR( void ); /*-----------------------------------------------------------*/ -/* - * See header file for description. +/* + * See header file for description. */ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ) { @@ -120,17 +86,17 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px pxTopOfStack--; /* SR. */ - *pxTopOfStack = portINITIAL_SR; + *pxTopOfStack = portINITIAL_SR; pxTopOfStack--; - + /* PC. */ *pxTopOfStack = ( uint32_t ) pxCode; pxTopOfStack--; - + /* PR. */ *pxTopOfStack = 15; pxTopOfStack--; - + /* 14. */ *pxTopOfStack = 14; pxTopOfStack--; @@ -186,22 +152,22 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px /* R1. */ *pxTopOfStack = 1; pxTopOfStack--; - + /* R0 */ *pxTopOfStack = 0; pxTopOfStack--; - + /* MACL. */ *pxTopOfStack = 16; pxTopOfStack--; - + /* MACH. */ *pxTopOfStack = 17; pxTopOfStack--; - + /* GBR. */ *pxTopOfStack = ulPortGetGBR(); - + /* GBR = global base register. VBR = vector base register. TBR = jump table base register. @@ -216,7 +182,7 @@ BaseType_t xPortStartScheduler( void ) extern void vApplicationSetupTimerInterrupt( void ); /* Call an application function to set up the timer that will generate the - tick interrupt. This way the application can decide which peripheral to + tick interrupt. This way the application can decide which peripheral to use. A demo application is provided to show a suitable example. */ vApplicationSetupTimerInterrupt(); @@ -248,11 +214,11 @@ int32_t lInterruptMask; /* taskYIELD() can only be called from a task, not an interrupt, so the current interrupt mask can only be 0 or portKERNEL_INTERRUPT_PRIORITY and - the mask can be set without risk of accidentally lowering the mask value. */ + the mask can be set without risk of accidentally lowering the mask value. */ set_imask( portKERNEL_INTERRUPT_PRIORITY ); - + trapa( portYIELD_TRAP_NO ); - + /* Restore the interrupt mask to whatever it was previously (when the function was entered). */ set_imask( ( int ) lInterruptMask ); @@ -278,26 +244,26 @@ extern void * volatile pxCurrentTCB; /* Allocate a buffer large enough to hold all the flop registers. */ pulFlopBuffer = ( uint32_t * ) pvPortMalloc( portFLOP_STORAGE_SIZE ); - + if( pulFlopBuffer != NULL ) { /* Start with the registers in a benign state. */ memset( ( void * ) pulFlopBuffer, 0x00, portFLOP_STORAGE_SIZE ); - + /* The first thing to get saved in the buffer is the FPSCR value - initialise this to the current FPSCR value. */ *pulFlopBuffer = get_fpscr(); - - /* Use the task tag to point to the flop buffer. Pass pointer to just + + /* Use the task tag to point to the flop buffer. Pass pointer to just above the buffer because the flop save routine uses a pre-decrement. */ - vTaskSetApplicationTaskTag( xTask, ( void * ) ( pulFlopBuffer + portFLOP_REGISTERS_TO_STORE ) ); + vTaskSetApplicationTaskTag( xTask, ( void * ) ( pulFlopBuffer + portFLOP_REGISTERS_TO_STORE ) ); xReturn = pdPASS; } else { xReturn = pdFAIL; } - + return xReturn; } /*-----------------------------------------------------------*/