mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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989bc332b2
* Add XMOS XCore ports Some minor modifications are also made to the kernel to support the XCore compiler's automatic stack size calculation. * Update kernel to support SMP The XMOS XCore ports are also updated to support SMP. * Fix compiler warnings in xcore ports The port set and clear interrupt mask from ISR macros were removed from the ports so that the default macros found in FreeRTOS.h are used instead. The default macros do not result in warnings when they are used. * Remove inline function from timers.h Inline function converted to macro. This should now build when optimizations are off and inlining is disabled. * Fix compiler warnings in xcore ports and tasks.c * fixed documentation for ulTaskNotifyTake() and ulTaskNotifyTakeIndexed() * spelling fixes for tasks.c Co-authored-by: Michael Bruno <mikeb@xmos.com>
184 lines
8.2 KiB
C
184 lines
8.2 KiB
C
/*
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FreeRTOS V4.1.1 - Copyright (C) 2003-2006 Richard Barry.
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MCF5235 Port - Copyright (C) 2006 Christian Walter.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License** as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FreeRTOS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of https://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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***************************************************************************
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* *
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* Get the FreeRTOS eBook! See https://www.FreeRTOS.org/Documentation *
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* *
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* This is a concise, step by step, 'hands on' guide that describes both *
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* general multitasking concepts and FreeRTOS specifics. It presents and *
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* explains numerous examples that are written using the FreeRTOS API. *
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* Full source code for all the examples is provided in an accompanying *
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* .zip file. *
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* *
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***************************************************************************
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***************************************************************************
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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https://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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https://www.highintegritysystems.com/safertos/ - A version that is
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certified for use in safety critical systems.
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https://www.highintegritysystems.com/openrtos/ - Commercial support,
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development, porting,
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licensing and training services.
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*/
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ------------------------ Data types for Coldfire ----------------------- */
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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#define portSTACK_TYPE unsigned int
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#define portBASE_TYPE int
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typedef portSTACK_TYPE StackType_t;
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typedef long BaseType_t;
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typedef unsigned long UBaseType_t;
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#if( configUSE_16_BIT_TICKS == 1 )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#else
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typedef uint32_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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#endif
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/* ------------------------ Architecture specifics ------------------------ */
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#define portSTACK_GROWTH ( -1 )
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portBYTE_ALIGNMENT 4
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#define portTRAP_YIELD 0 /* Trap 0 */
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#define portIPL_MAX 7 /* Only NMI interrupt 7 allowed. */
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/* ------------------------ FreeRTOS macros for port ---------------------- */
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/*
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* This function must be called when the current state of the active task
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* should be stored. It must be called immediately after exception
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* processing from the CPU, i.e. there exists a Coldfire exception frame at
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* the current position in the stack. The function reserves space on
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* the stack for the CPU registers and other task dependent values (e.g
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* ulCriticalNesting) and updates the top of the stack in the TCB.
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*/
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#define portSAVE_CONTEXT() \
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asm volatile ( /* reserve space for task state. */ \
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"lea.l (-64, %sp), %sp\n\t" \
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/* push data register %d0-%d7/%a0-%a6 on stack. */ \
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"movem.l %d0-%d7/%a0-%a6, (%sp)\n\t" \
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/* push ulCriticalNesting counter on stack. */ \
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"lea.l (60, %sp), %a0\n\t" \
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"move.l ulCriticalNesting, (%a0)\n\t" \
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/* set the new top of the stack in the TCB. */ \
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"move.l pxCurrentTCB, %a0\n\t" \
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"move.l %sp, (%a0)");
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/*.
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* This function restores the current active and continues its execution.
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* It loads the current TCB and restores the processor registers, the
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* task dependent values (e.g ulCriticalNesting). Finally execution
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* is continued by executing an rte instruction.
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*/
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#define portRESTORE_CONTEXT() \
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asm volatile ( "move.l pxCurrentTCB, %sp\n\t" \
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"move.l (%sp), %sp\n\t" \
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/* stack pointer now points to the saved registers. */ \
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"movem.l (%sp), %d0-%d7/%a0-%a6\n\t" \
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/* restore ulCriticalNesting counter from stack. */ \
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"lea.l (%sp, 60), %sp\n\t" \
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"move.l (%sp)+, ulCriticalNesting\n\t" \
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/* stack pointer now points to exception frame. */ \
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"rte\n\t" );
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#define portENTER_CRITICAL() \
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vPortEnterCritical();
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#define portEXIT_CRITICAL() \
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vPortExitCritical();
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#define portSET_IPL( xIPL ) \
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asm_set_ipl( xIPL )
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#define portDISABLE_INTERRUPTS() \
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do { ( void )portSET_IPL( portIPL_MAX ); } while( 0 )
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#define portENABLE_INTERRUPTS() \
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do { ( void )portSET_IPL( 0 ); } while( 0 )
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#define portYIELD() \
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asm volatile ( " trap %0\n\t" : : "i"(portTRAP_YIELD) )
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#define portNOP() \
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asm volatile ( "nop\n\t" )
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#define portENTER_SWITCHING_ISR() \
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asm volatile ( "move.w #0x2700, %sr" ); \
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/* Save the context of the interrupted task. */ \
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portSAVE_CONTEXT( ); \
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{
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#define portEXIT_SWITCHING_ISR( SwitchRequired ) \
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/* If a switch is required we call vTaskSwitchContext(). */ \
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if( SwitchRequired ) \
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{ \
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vTaskSwitchContext( ); \
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} \
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} \
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portRESTORE_CONTEXT( );
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/* ------------------------ Function prototypes --------------------------- */
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void vPortEnterCritical( void );
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void vPortExitCritical( void );
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int asm_set_ipl( uint32_t int uiNewIPL );
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/* ------------------------ Compiler specifics ---------------------------- */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) \
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void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) \
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void vFunction( void *pvParameters )
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_H */
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