mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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Normalize line endings and whitespace in source files
This commit is contained in:
Paul Bartell
Paul Bartell
parent
151fb04ad1
commit
01820d3ed9
574 changed files with 162626 additions and 172362 deletions
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@ -1,241 +1,241 @@
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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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
|
||||
* 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.
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||||
*
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||||
* 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
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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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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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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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/* Standard includes. */
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#include "string.h"
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#ifdef configCLINT_BASE_ADDRESS
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#warning The configCLINT_BASE_ADDRESS constant has been deprecated. configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS are currently being derived from the (possibly 0) configCLINT_BASE_ADDRESS setting. Please update to define configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS dirctly in place of configCLINT_BASE_ADDRESS. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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#ifndef configMTIME_BASE_ADDRESS
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#warning configMTIME_BASE_ADDRESS must be defined in FreeRTOSConfig.h. If the target chip includes a memory-mapped mtime register then set configMTIME_BASE_ADDRESS to the mapped address. Otherwise set configMTIME_BASE_ADDRESS to 0. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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#ifndef configMTIMECMP_BASE_ADDRESS
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#warning configMTIMECMP_BASE_ADDRESS must be defined in FreeRTOSConfig.h. If the target chip includes a memory-mapped mtimecmp register then set configMTIMECMP_BASE_ADDRESS to the mapped address. Otherwise set configMTIMECMP_BASE_ADDRESS to 0. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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/* Let the user override the pre-loading of the initial LR with the address of
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* prvTaskExitError() in case it messes up unwinding of the stack in the
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* debugger. */
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#ifdef configTASK_RETURN_ADDRESS
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#define portTASK_RETURN_ADDRESS configTASK_RETURN_ADDRESS
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#else
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#define portTASK_RETURN_ADDRESS prvTaskExitError
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#endif
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/* The stack used by interrupt service routines. Set configISR_STACK_SIZE_WORDS
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* to use a statically allocated array as the interrupt stack. Alternative leave
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* configISR_STACK_SIZE_WORDS undefined and update the linker script so that a
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* linker variable names __freertos_irq_stack_top has the same value as the top
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* of the stack used by main. Using the linker script method will repurpose the
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* stack that was used by main before the scheduler was started for use as the
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* interrupt stack after the scheduler has started. */
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#ifdef configISR_STACK_SIZE_WORDS
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static __attribute__( ( aligned( 16 ) ) ) StackType_t xISRStack[ configISR_STACK_SIZE_WORDS ] = { 0 };
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const StackType_t xISRStackTop = ( StackType_t ) &( xISRStack[ configISR_STACK_SIZE_WORDS & ~portBYTE_ALIGNMENT_MASK ] );
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/* Don't use 0xa5 as the stack fill bytes as that is used by the kernerl for
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* the task stacks, and so will legitimately appear in many positions within
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* the ISR stack. */
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#define portISR_STACK_FILL_BYTE 0xee
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#else
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extern const uint32_t __freertos_irq_stack_top[];
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const StackType_t xISRStackTop = ( StackType_t ) __freertos_irq_stack_top;
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#endif
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/**
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* @brief Used to catch tasks that attempt to return from their implementing
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* function.
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*/
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static void prvTaskExitError( void );
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/*
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* Setup the timer to generate the tick interrupts. The implementation in this
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* file is weak to allow application writers to change the timer used to
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* generate the tick interrupt.
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*/
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void vPortSetupTimerInterrupt( void ) __attribute__( ( weak ) );
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/*-----------------------------------------------------------*/
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/* Used to program the machine timer compare register. */
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uint64_t ullNextTime = 0ULL;
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const uint64_t * pullNextTime = &ullNextTime;
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const size_t uxTimerIncrementsForOneTick = ( size_t ) ( ( configCPU_CLOCK_HZ ) / ( configTICK_RATE_HZ ) ); /* Assumes increment won't go over 32-bits. */
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uint32_t const ullMachineTimerCompareRegisterBase = configMTIMECMP_BASE_ADDRESS;
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volatile uint64_t * pullMachineTimerCompareRegister = NULL;
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/* Holds the critical nesting value - deliberately non-zero at start up to
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* ensure interrupts are not accidentally enabled before the scheduler starts. */
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size_t xCriticalNesting = ( size_t ) 0xaaaaaaaa;
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size_t * pxCriticalNesting = &xCriticalNesting;
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/* Used to catch tasks that attempt to return from their implementing function. */
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size_t xTaskReturnAddress = ( size_t ) portTASK_RETURN_ADDRESS;
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/* Set configCHECK_FOR_STACK_OVERFLOW to 3 to add ISR stack checking to task
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* stack checking. A problem in the ISR stack will trigger an assert, not call
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* the stack overflow hook function (because the stack overflow hook is specific
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* to a task stack, not the ISR stack). */
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#if defined( configISR_STACK_SIZE_WORDS ) && ( configCHECK_FOR_STACK_OVERFLOW > 2 )
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#warning This path not tested, or even compiled yet.
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static const uint8_t ucExpectedStackBytes[] =
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{
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE
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}; \
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#define portCHECK_ISR_STACK() configASSERT( ( memcmp( ( void * ) xISRStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) == 0 ) )
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#else /* if defined( configISR_STACK_SIZE_WORDS ) && ( configCHECK_FOR_STACK_OVERFLOW > 2 ) */
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/* Define the function away. */
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#define portCHECK_ISR_STACK()
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#endif /* configCHECK_FOR_STACK_OVERFLOW > 2 */
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/*-----------------------------------------------------------*/
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static void prvTaskExitError( void )
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{
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volatile uint32_t ulDummy = 0UL;
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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 ). Artificially force an assert()
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* to be triggered if configASSERT() is defined, then stop here so
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* application writers can catch the error. */
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configASSERT( xCriticalNesting == ~0UL );
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portDISABLE_INTERRUPTS();
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while( ulDummy == 0 )
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{
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/* This file calls prvTaskExitError() after the scheduler has been
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* started to remove a compiler warning about the function being
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* defined but never called. ulDummy is used purely to quieten other
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* warnings about code appearing after this function is called - making
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* ulDummy volatile makes the compiler think the function could return
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* and therefore not output an 'unreachable code' warning for code that
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* appears after it. */
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}
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}
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/*-----------------------------------------------------------*/
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#if ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 )
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void vPortSetupTimerInterrupt( void )
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{
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uint32_t ulCurrentTimeHigh, ulCurrentTimeLow;
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volatile uint32_t * const pulTimeHigh = ( uint32_t * ) ( ( configMTIME_BASE_ADDRESS ) + 4UL ); /* 8-byte type so high 32-bit word is 4 bytes up. */
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volatile uint32_t * const pulTimeLow = ( uint32_t * ) ( configMTIME_BASE_ADDRESS );
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volatile uint32_t ulHartId;
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__asm volatile ( "csrr %0, 0xf14" : "=r" ( ulHartId ) ); /* 0xf14 is hartid. */
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pullMachineTimerCompareRegister = ( volatile uint64_t * ) ( ullMachineTimerCompareRegisterBase + ( ulHartId * sizeof( uint64_t ) ) );
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do
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{
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ulCurrentTimeHigh = *pulTimeHigh;
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ulCurrentTimeLow = *pulTimeLow;
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} while( ulCurrentTimeHigh != *pulTimeHigh );
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ullNextTime = ( uint64_t ) ulCurrentTimeHigh;
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ullNextTime <<= 32ULL; /* High 4-byte word is 32-bits up. */
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ullNextTime |= ( uint64_t ) ulCurrentTimeLow;
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ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
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*pullMachineTimerCompareRegister = ullNextTime;
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/* Prepare the time to use after the next tick interrupt. */
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ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
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}
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#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIME_BASE_ADDRESS != 0 ) */
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/*-----------------------------------------------------------*/
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BaseType_t xPortStartScheduler( void )
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{
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extern void xPortStartFirstTask( void );
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#if ( configASSERT_DEFINED == 1 )
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{
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/* Check alignment of the interrupt stack - which is the same as the
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* stack that was being used by main() prior to the scheduler being
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* started. */
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configASSERT( ( xISRStackTop & portBYTE_ALIGNMENT_MASK ) == 0 );
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#ifdef configISR_STACK_SIZE_WORDS
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{
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memset( ( void * ) xISRStack, portISR_STACK_FILL_BYTE, sizeof( xISRStack ) );
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}
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#endif /* configISR_STACK_SIZE_WORDS */
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}
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#endif /* configASSERT_DEFINED */
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/* If there is a CLINT then it is ok to use the default implementation
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* in this file, otherwise vPortSetupTimerInterrupt() must be implemented to
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* configure whichever clock is to be used to generate the tick interrupt. */
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vPortSetupTimerInterrupt();
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#if ( ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) )
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{
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/* Enable mtime and external interrupts. 1<<7 for timer interrupt,
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* 1<<11 for external interrupt. _RB_ What happens here when mtime is
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* not present as with pulpino? */
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__asm volatile ( "csrs 0x304, %0" ::"r" ( 0x880 ) ); /* 0x304 is mie. */
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}
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#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) */
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xPortStartFirstTask();
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/* Should not get here as after calling xPortStartFirstTask() only tasks
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* should be executing. */
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return pdFAIL;
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}
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/*-----------------------------------------------------------*/
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void vPortEndScheduler( void )
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{
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/* Not implemented. */
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for( ; ; )
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{
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}
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}
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/*-----------------------------------------------------------*/
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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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
|
||||
* 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:
|
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*
|
||||
* The above copyright notice and this permission notice shall be included in all
|
||||
* 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
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
* 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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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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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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/* Standard includes. */
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#include "string.h"
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#ifdef configCLINT_BASE_ADDRESS
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#warning The configCLINT_BASE_ADDRESS constant has been deprecated. configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS are currently being derived from the (possibly 0) configCLINT_BASE_ADDRESS setting. Please update to define configMTIME_BASE_ADDRESS and configMTIMECMP_BASE_ADDRESS dirctly in place of configCLINT_BASE_ADDRESS. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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#ifndef configMTIME_BASE_ADDRESS
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#warning configMTIME_BASE_ADDRESS must be defined in FreeRTOSConfig.h. If the target chip includes a memory-mapped mtime register then set configMTIME_BASE_ADDRESS to the mapped address. Otherwise set configMTIME_BASE_ADDRESS to 0. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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#ifndef configMTIMECMP_BASE_ADDRESS
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#warning configMTIMECMP_BASE_ADDRESS must be defined in FreeRTOSConfig.h. If the target chip includes a memory-mapped mtimecmp register then set configMTIMECMP_BASE_ADDRESS to the mapped address. Otherwise set configMTIMECMP_BASE_ADDRESS to 0. See https: /*www.FreeRTOS.org/Using-FreeRTOS-on-RISC-V.html */
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#endif
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/* Let the user override the pre-loading of the initial LR with the address of
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* prvTaskExitError() in case it messes up unwinding of the stack in the
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* debugger. */
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#ifdef configTASK_RETURN_ADDRESS
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#define portTASK_RETURN_ADDRESS configTASK_RETURN_ADDRESS
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#else
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#define portTASK_RETURN_ADDRESS prvTaskExitError
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#endif
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/* The stack used by interrupt service routines. Set configISR_STACK_SIZE_WORDS
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* to use a statically allocated array as the interrupt stack. Alternative leave
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* configISR_STACK_SIZE_WORDS undefined and update the linker script so that a
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* linker variable names __freertos_irq_stack_top has the same value as the top
|
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* of the stack used by main. Using the linker script method will repurpose the
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* stack that was used by main before the scheduler was started for use as the
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* interrupt stack after the scheduler has started. */
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#ifdef configISR_STACK_SIZE_WORDS
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static __attribute__( ( aligned( 16 ) ) ) StackType_t xISRStack[ configISR_STACK_SIZE_WORDS ] = { 0 };
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const StackType_t xISRStackTop = ( StackType_t ) &( xISRStack[ configISR_STACK_SIZE_WORDS & ~portBYTE_ALIGNMENT_MASK ] );
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/* Don't use 0xa5 as the stack fill bytes as that is used by the kernerl for
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* the task stacks, and so will legitimately appear in many positions within
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* the ISR stack. */
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#define portISR_STACK_FILL_BYTE 0xee
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#else
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extern const uint32_t __freertos_irq_stack_top[];
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const StackType_t xISRStackTop = ( StackType_t ) __freertos_irq_stack_top;
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#endif
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/**
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* @brief Used to catch tasks that attempt to return from their implementing
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* function.
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*/
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static void prvTaskExitError( void );
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|
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/*
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* Setup the timer to generate the tick interrupts. The implementation in this
|
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* file is weak to allow application writers to change the timer used to
|
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* generate the tick interrupt.
|
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*/
|
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void vPortSetupTimerInterrupt( void ) __attribute__( ( weak ) );
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/*-----------------------------------------------------------*/
|
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/* Used to program the machine timer compare register. */
|
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uint64_t ullNextTime = 0ULL;
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const uint64_t * pullNextTime = &ullNextTime;
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const size_t uxTimerIncrementsForOneTick = ( size_t ) ( ( configCPU_CLOCK_HZ ) / ( configTICK_RATE_HZ ) ); /* Assumes increment won't go over 32-bits. */
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uint32_t const ullMachineTimerCompareRegisterBase = configMTIMECMP_BASE_ADDRESS;
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volatile uint64_t * pullMachineTimerCompareRegister = NULL;
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/* Holds the critical nesting value - deliberately non-zero at start up to
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* ensure interrupts are not accidentally enabled before the scheduler starts. */
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size_t xCriticalNesting = ( size_t ) 0xaaaaaaaa;
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size_t * pxCriticalNesting = &xCriticalNesting;
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/* Used to catch tasks that attempt to return from their implementing function. */
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size_t xTaskReturnAddress = ( size_t ) portTASK_RETURN_ADDRESS;
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/* Set configCHECK_FOR_STACK_OVERFLOW to 3 to add ISR stack checking to task
|
||||
* stack checking. A problem in the ISR stack will trigger an assert, not call
|
||||
* the stack overflow hook function (because the stack overflow hook is specific
|
||||
* to a task stack, not the ISR stack). */
|
||||
#if defined( configISR_STACK_SIZE_WORDS ) && ( configCHECK_FOR_STACK_OVERFLOW > 2 )
|
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#warning This path not tested, or even compiled yet.
|
||||
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||||
static const uint8_t ucExpectedStackBytes[] =
|
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{
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, \
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portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE, portISR_STACK_FILL_BYTE
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}; \
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#define portCHECK_ISR_STACK() configASSERT( ( memcmp( ( void * ) xISRStack, ( void * ) ucExpectedStackBytes, sizeof( ucExpectedStackBytes ) ) == 0 ) )
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#else /* if defined( configISR_STACK_SIZE_WORDS ) && ( configCHECK_FOR_STACK_OVERFLOW > 2 ) */
|
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/* Define the function away. */
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#define portCHECK_ISR_STACK()
|
||||
#endif /* configCHECK_FOR_STACK_OVERFLOW > 2 */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvTaskExitError( void )
|
||||
{
|
||||
volatile uint32_t ulDummy = 0UL;
|
||||
|
||||
/* A function that implements a task must not exit or attempt to return to
|
||||
* its caller as there is nothing to return to. If a task wants to exit it
|
||||
* should instead call vTaskDelete( NULL ). Artificially force an assert()
|
||||
* to be triggered if configASSERT() is defined, then stop here so
|
||||
* application writers can catch the error. */
|
||||
configASSERT( xCriticalNesting == ~0UL );
|
||||
portDISABLE_INTERRUPTS();
|
||||
|
||||
while( ulDummy == 0 )
|
||||
{
|
||||
/* This file calls prvTaskExitError() after the scheduler has been
|
||||
* started to remove a compiler warning about the function being
|
||||
* defined but never called. ulDummy is used purely to quieten other
|
||||
* warnings about code appearing after this function is called - making
|
||||
* ulDummy volatile makes the compiler think the function could return
|
||||
* and therefore not output an 'unreachable code' warning for code that
|
||||
* appears after it. */
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 )
|
||||
|
||||
void vPortSetupTimerInterrupt( void )
|
||||
{
|
||||
uint32_t ulCurrentTimeHigh, ulCurrentTimeLow;
|
||||
volatile uint32_t * const pulTimeHigh = ( uint32_t * ) ( ( configMTIME_BASE_ADDRESS ) + 4UL ); /* 8-byte type so high 32-bit word is 4 bytes up. */
|
||||
volatile uint32_t * const pulTimeLow = ( uint32_t * ) ( configMTIME_BASE_ADDRESS );
|
||||
volatile uint32_t ulHartId;
|
||||
|
||||
__asm volatile ( "csrr %0, 0xf14" : "=r" ( ulHartId ) ); /* 0xf14 is hartid. */
|
||||
|
||||
pullMachineTimerCompareRegister = ( volatile uint64_t * ) ( ullMachineTimerCompareRegisterBase + ( ulHartId * sizeof( uint64_t ) ) );
|
||||
|
||||
do
|
||||
{
|
||||
ulCurrentTimeHigh = *pulTimeHigh;
|
||||
ulCurrentTimeLow = *pulTimeLow;
|
||||
} while( ulCurrentTimeHigh != *pulTimeHigh );
|
||||
|
||||
ullNextTime = ( uint64_t ) ulCurrentTimeHigh;
|
||||
ullNextTime <<= 32ULL; /* High 4-byte word is 32-bits up. */
|
||||
ullNextTime |= ( uint64_t ) ulCurrentTimeLow;
|
||||
ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
|
||||
*pullMachineTimerCompareRegister = ullNextTime;
|
||||
|
||||
/* Prepare the time to use after the next tick interrupt. */
|
||||
ullNextTime += ( uint64_t ) uxTimerIncrementsForOneTick;
|
||||
}
|
||||
|
||||
#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIME_BASE_ADDRESS != 0 ) */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xPortStartScheduler( void )
|
||||
{
|
||||
extern void xPortStartFirstTask( void );
|
||||
|
||||
#if ( configASSERT_DEFINED == 1 )
|
||||
{
|
||||
/* Check alignment of the interrupt stack - which is the same as the
|
||||
* stack that was being used by main() prior to the scheduler being
|
||||
* started. */
|
||||
configASSERT( ( xISRStackTop & portBYTE_ALIGNMENT_MASK ) == 0 );
|
||||
|
||||
#ifdef configISR_STACK_SIZE_WORDS
|
||||
{
|
||||
memset( ( void * ) xISRStack, portISR_STACK_FILL_BYTE, sizeof( xISRStack ) );
|
||||
}
|
||||
#endif /* configISR_STACK_SIZE_WORDS */
|
||||
}
|
||||
#endif /* configASSERT_DEFINED */
|
||||
|
||||
/* If there is a CLINT then it is ok to use the default implementation
|
||||
* in this file, otherwise vPortSetupTimerInterrupt() must be implemented to
|
||||
* configure whichever clock is to be used to generate the tick interrupt. */
|
||||
vPortSetupTimerInterrupt();
|
||||
|
||||
#if ( ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) )
|
||||
{
|
||||
/* Enable mtime and external interrupts. 1<<7 for timer interrupt,
|
||||
* 1<<11 for external interrupt. _RB_ What happens here when mtime is
|
||||
* not present as with pulpino? */
|
||||
__asm volatile ( "csrs 0x304, %0" ::"r" ( 0x880 ) ); /* 0x304 is mie. */
|
||||
}
|
||||
#endif /* ( configMTIME_BASE_ADDRESS != 0 ) && ( configMTIMECMP_BASE_ADDRESS != 0 ) */
|
||||
|
||||
xPortStartFirstTask();
|
||||
|
||||
/* Should not get here as after calling xPortStartFirstTask() only tasks
|
||||
* should be executing. */
|
||||
return pdFAIL;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEndScheduler( void )
|
||||
{
|
||||
/* Not implemented. */
|
||||
for( ; ; )
|
||||
{
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue