mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-22 22:42:00 -04:00
New port files for V2 ColdFire/CodeWarrior added.
This commit is contained in:
Richard Barry
parent
40f4287921
commit
5e89d113be
169
Source/portable/CodeWarrior/ColdFire_V2/port.c
Normal file
169
Source/portable/CodeWarrior/ColdFire_V2/port.c
Normal file
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@ -0,0 +1,169 @@
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/*
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|
FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.
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|
|
||||||
|
This file is part of the FreeRTOS.org distribution.
|
||||||
|
|
||||||
|
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
FreeRTOS.org 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. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with FreeRTOS.org; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
|
||||||
|
A special exception to the GPL can be applied should you wish to distribute
|
||||||
|
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||||
|
the source code for any proprietary components. See the licensing section
|
||||||
|
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||||
|
can be applied.
|
||||||
|
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
* *
|
||||||
|
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||||
|
* and even write all or part of your application on your behalf. *
|
||||||
|
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||||
|
* expedite your project. *
|
||||||
|
* *
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
|
||||||
|
Please ensure to read the configuration and relevant port sections of the
|
||||||
|
online documentation.
|
||||||
|
|
||||||
|
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||||
|
contact details.
|
||||||
|
|
||||||
|
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||||
|
critical systems.
|
||||||
|
|
||||||
|
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||||
|
licensing and training services.
|
||||||
|
*/
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|
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/* Kernel includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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#define portINITIAL_FORMAT_VECTOR ( ( portSTACK_TYPE ) 0x4000 )
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/* Supervisor mode set. */
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#define portINITIAL_STATUS_REGISTER ( ( portSTACK_TYPE ) 0x2000)
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/* Used to keep track of the number of nested calls to taskENTER_CRITICAL(). This
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will be set to 0 prior to the first task being started. */
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static unsigned portLONG ulCriticalNesting = 0x9999UL;
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#define portSAVE_CONTEXT() \
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lea.l (-60, %sp), %sp; \
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movem.l %d0-%fp, (%sp); \
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move.l pxCurrentTCB, %a0; \
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move.l %sp, (%a0);
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#define portRESTORE_CONTEXT() \
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move.l pxCurrentTCB, %a0; \
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move.l (%a0), %sp; \
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movem.l (%sp), %d0-%fp; \
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lea.l %sp@(60), %sp; \
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rte
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/*-----------------------------------------------------------*/
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portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE * pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
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{
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*pxTopOfStack = ( portSTACK_TYPE ) pvParameters;
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pxTopOfStack--;
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*pxTopOfStack = (portSTACK_TYPE) 0xDEADBEEF;
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pxTopOfStack--;
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/* Exception stack frame starts with the return address. */
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*pxTopOfStack = ( portSTACK_TYPE ) pxCode;
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pxTopOfStack--;
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*pxTopOfStack = ( portINITIAL_FORMAT_VECTOR << 16UL ) | ( portINITIAL_STATUS_REGISTER );
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x0; /*FP*/
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pxTopOfStack -= 14; /* A5 to D0. */
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return pxTopOfStack;
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}
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/*-----------------------------------------------------------*/
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portBASE_TYPE xPortStartScheduler( void )
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{
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extern void vPortStartFirstTask( void );
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ulCriticalNesting = 0UL;
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/* Configure the interrupts used by this port. */
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vApplicationSetupInterrupts();
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/* Start the first task executing. */
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vPortStartFirstTask();
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return pdFALSE;
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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 as there is nothing to return to. */
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}
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/*-----------------------------------------------------------*/
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void vPortEnterCritical( void )
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{
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if( ulCriticalNesting == 0UL )
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{
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/* Guard against context switches being pended simultaneously with a
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critical section being entered. */
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do
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{
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portDISABLE_INTERRUPTS();
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if( MCF_INTC0_INTFRCH == 0UL )
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{
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break;
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}
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portENABLE_INTERRUPTS();
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} while( 1 );
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}
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ulCriticalNesting++;
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}
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/*-----------------------------------------------------------*/
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void vPortExitCritical( void )
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{
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ulCriticalNesting--;
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if( ulCriticalNesting == 0 )
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{
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portENABLE_INTERRUPTS();
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}
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}
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/*-----------------------------------------------------------*/
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void vPortYieldHandler( void )
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{
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unsigned portLONG ulSavedInterruptMask;
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ulSavedInterruptMask = portSET_INTERRUPT_MASK_FROM_ISR();
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/* Note this will clear all forced interrupts - this is done for speed. */
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MCF_INTC0_INTFRCL = 0;
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vTaskSwitchContext();
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portCLEAR_INTERRUPT_MASK_FROM_ISR( ulSavedInterruptMask );
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}
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/*-----------------------------------------------------------*/
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152
Source/portable/CodeWarrior/ColdFire_V2/portasm.S
Normal file
152
Source/portable/CodeWarrior/ColdFire_V2/portasm.S
Normal file
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@ -0,0 +1,152 @@
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/*
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|
FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.
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||||||
|
|
||||||
|
This file is part of the FreeRTOS.org distribution.
|
||||||
|
|
||||||
|
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
FreeRTOS.org 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. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with FreeRTOS.org; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
|
||||||
|
A special exception to the GPL can be applied should you wish to distribute
|
||||||
|
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||||
|
the source code for any proprietary components. See the licensing section
|
||||||
|
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||||
|
can be applied.
|
||||||
|
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
* *
|
||||||
|
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||||
|
* and even write all or part of your application on your behalf. *
|
||||||
|
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||||
|
* expedite your project. *
|
||||||
|
* *
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
|
||||||
|
Please ensure to read the configuration and relevant port sections of the
|
||||||
|
online documentation.
|
||||||
|
|
||||||
|
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||||
|
contact details.
|
||||||
|
|
||||||
|
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||||
|
critical systems.
|
||||||
|
|
||||||
|
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||||
|
licensing and training services.
|
||||||
|
*/
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/*
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* Purpose: Lowest level routines for all ColdFire processors.
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*
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* Notes:
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*
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* ulPortSetIPL() and mcf5xxx_wr_cacr() copied with permission from FreeScale
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* supplied source files.
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*/
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.global ulPortSetIPL
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.global _ulPortSetIPL
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.global mcf5xxx_wr_cacrx
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.global _mcf5xxx_wr_cacrx
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.global vPortYieldISR
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.global _vPortYieldISR
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.global vPortStartFirstTask
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.global _vPortStartFirstTask
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.extern _pxCurrentTCB
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.extern _vPortYieldHandler
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.text
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|
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.macro portSAVE_CONTEXT
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lea.l (-60, sp), sp
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movem.l d0-a6, (sp)
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move.l _pxCurrentTCB, a0
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move.l sp, (a0)
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.endm
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.macro portRESTORE_CONTEXT
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move.l _pxCurrentTCB, a0
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move.l (a0), sp
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movem.l (sp), d0-a6
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|
lea.l (60, sp), sp
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|
rte
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|
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|
.endm
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||||||
|
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|
/********************************************************************/
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||||||
|
/*
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|
* This routines changes the IPL to the value passed into the routine.
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|
* It also returns the old IPL value back.
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||||||
|
* Calling convention from C:
|
||||||
|
* old_ipl = asm_set_ipl(new_ipl);
|
||||||
|
* For the Diab Data C compiler, it passes return value thru D0.
|
||||||
|
* Note that only the least significant three bits of the passed
|
||||||
|
* value are used.
|
||||||
|
*/
|
||||||
|
|
||||||
|
ulPortSetIPL:
|
||||||
|
_ulPortSetIPL:
|
||||||
|
link A6,#-8
|
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|
movem.l D6-D7,(SP)
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||||||
|
|
||||||
|
move.w SR,D7 /* current sr */
|
||||||
|
|
||||||
|
move.l D7,D0 /* prepare return value */
|
||||||
|
andi.l #0x0700,D0 /* mask out IPL */
|
||||||
|
lsr.l #8,D0 /* IPL */
|
||||||
|
|
||||||
|
move.l 8(A6),D6 /* get argument */
|
||||||
|
andi.l #0x07,D6 /* least significant three bits */
|
||||||
|
lsl.l #8,D6 /* move over to make mask */
|
||||||
|
|
||||||
|
andi.l #0x0000F8FF,D7 /* zero out current IPL */
|
||||||
|
or.l D6,D7 /* place new IPL in sr */
|
||||||
|
move.w D7,SR
|
||||||
|
|
||||||
|
movem.l (SP),D6-D7
|
||||||
|
lea 8(SP),SP
|
||||||
|
unlk A6
|
||||||
|
rts
|
||||||
|
/********************************************************************/
|
||||||
|
|
||||||
|
mcf5xxx_wr_cacrx:
|
||||||
|
_mcf5xxx_wr_cacrx:
|
||||||
|
move.l 4(sp),d0
|
||||||
|
.long 0x4e7b0002 /* movec d0,cacr */
|
||||||
|
nop
|
||||||
|
rts
|
||||||
|
|
||||||
|
/********************************************************************/
|
||||||
|
|
||||||
|
/* Yield interrupt. */
|
||||||
|
_vPortYieldISR:
|
||||||
|
vPortYieldISR:
|
||||||
|
portSAVE_CONTEXT
|
||||||
|
jsr _vPortYieldHandler
|
||||||
|
portRESTORE_CONTEXT
|
||||||
|
|
||||||
|
/********************************************************************/
|
||||||
|
|
||||||
|
|
||||||
|
vPortStartFirstTask:
|
||||||
|
_vPortStartFirstTask:
|
||||||
|
portRESTORE_CONTEXT
|
||||||
|
|
||||||
|
.end
|
||||||
|
|
||||||
|
|
||||||
132
Source/portable/CodeWarrior/ColdFire_V2/portmacro.h
Normal file
132
Source/portable/CodeWarrior/ColdFire_V2/portmacro.h
Normal file
|
|
@ -0,0 +1,132 @@
|
||||||
|
/*
|
||||||
|
FreeRTOS.org V5.0.4 - Copyright (C) 2003-2008 Richard Barry.
|
||||||
|
|
||||||
|
This file is part of the FreeRTOS.org distribution.
|
||||||
|
|
||||||
|
FreeRTOS.org is free software; you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation; either version 2 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
FreeRTOS.org 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. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with FreeRTOS.org; if not, write to the Free Software
|
||||||
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
|
||||||
|
A special exception to the GPL can be applied should you wish to distribute
|
||||||
|
a combined work that includes FreeRTOS.org, without being obliged to provide
|
||||||
|
the source code for any proprietary components. See the licensing section
|
||||||
|
of http://www.FreeRTOS.org for full details of how and when the exception
|
||||||
|
can be applied.
|
||||||
|
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
* *
|
||||||
|
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
|
||||||
|
* and even write all or part of your application on your behalf. *
|
||||||
|
* See http://www.OpenRTOS.com for details of the services we provide to *
|
||||||
|
* expedite your project. *
|
||||||
|
* *
|
||||||
|
***************************************************************************
|
||||||
|
***************************************************************************
|
||||||
|
|
||||||
|
Please ensure to read the configuration and relevant port sections of the
|
||||||
|
online documentation.
|
||||||
|
|
||||||
|
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||||
|
contact details.
|
||||||
|
|
||||||
|
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||||
|
critical systems.
|
||||||
|
|
||||||
|
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||||
|
licensing and training services.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#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 portSTACK_TYPE unsigned long
|
||||||
|
#define portBASE_TYPE long
|
||||||
|
|
||||||
|
#if( configUSE_16_BIT_TICKS == 1 )
|
||||||
|
typedef unsigned portSHORT portTickType;
|
||||||
|
#define portMAX_DELAY ( portTickType ) 0xffff
|
||||||
|
#else
|
||||||
|
typedef unsigned portLONG portTickType;
|
||||||
|
#define portMAX_DELAY ( portTickType ) 0xffffffff
|
||||||
|
#endif
|
||||||
|
/*-----------------------------------------------------------*/
|
||||||
|
|
||||||
|
/* Hardware specifics. */
|
||||||
|
#define portBYTE_ALIGNMENT 4
|
||||||
|
#define portSTACK_GROWTH -1
|
||||||
|
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
|
||||||
|
/*-----------------------------------------------------------*/
|
||||||
|
unsigned portLONG ulPortSetIPL( unsigned portLONG );
|
||||||
|
#define portDISABLE_INTERRUPTS() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
|
||||||
|
#define portENABLE_INTERRUPTS() ulPortSetIPL( 0 )
|
||||||
|
|
||||||
|
|
||||||
|
extern void vPortEnterCritical( void );
|
||||||
|
extern void vPortExitCritical( void );
|
||||||
|
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||||
|
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||||
|
|
||||||
|
extern unsigned portBASE_TYPE uxPortSetInterruptMaskFromISR( void );
|
||||||
|
extern void vPortClearInterruptMaskFromISR( unsigned portBASE_TYPE );
|
||||||
|
#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetIPL( configMAX_SYSCALL_INTERRUPT_PRIORITY )
|
||||||
|
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedStatusRegister ) ulPortSetIPL( uxSavedStatusRegister )
|
||||||
|
|
||||||
|
/*-----------------------------------------------------------*/
|
||||||
|
|
||||||
|
/* Task utilities. */
|
||||||
|
|
||||||
|
#define portNOP() asm volatile ( "nop" )
|
||||||
|
|
||||||
|
/* Note this will overwrite all other bits in the force register, it is done this way for speed. */
|
||||||
|
#define portYIELD() MCF_INTC0_INTFRCL = ( 1UL << configYIELD_INTERRUPT_VECTOR ); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */
|
||||||
|
|
||||||
|
/*-----------------------------------------------------------*/
|
||||||
|
|
||||||
|
/* Task function macros as described on the FreeRTOS.org WEB site. */
|
||||||
|
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) __attribute__((noreturn))
|
||||||
|
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||||
|
/*-----------------------------------------------------------*/
|
||||||
|
|
||||||
|
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) \
|
||||||
|
{ \
|
||||||
|
portYIELD(); \
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* PORTMACRO_H */
|
||||||
|
|
||||||
Loading…
Reference in a new issue