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This commit is contained in:
Richard Barry
parent
bb7dc7c37f
commit
e20f132f48
2632 changed files with 751681 additions and 0 deletions
214
20080212/Source/portable/IAR/ARM_CM3/port.c
Normal file
214
20080212/Source/portable/IAR/ARM_CM3/port.c
Normal file
|
|
@ -0,0 +1,214 @@
|
|||
/*
|
||||
FreeRTOS.org V4.7.1 - 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.
|
||||
|
||||
***************************************************************************
|
||||
|
||||
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.
|
||||
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
/*
|
||||
Change from V4.2.1:
|
||||
|
||||
+ Introduced usage of configKERNEL_INTERRUPT_PRIORITY macro to set the
|
||||
interrupt priority used by the kernel.
|
||||
*/
|
||||
|
||||
/*-----------------------------------------------------------
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* Implementation of functions defined in portable.h for the ARM CM3 port.
|
||||
*----------------------------------------------------------*/
|
||||
|
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/* Scheduler includes. */
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||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
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|
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/* Constants required to manipulate the NVIC. */
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#define portNVIC_SYSTICK_CTRL ( ( volatile unsigned portLONG *) 0xe000e010 )
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#define portNVIC_SYSTICK_LOAD ( ( volatile unsigned portLONG *) 0xe000e014 )
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#define portNVIC_INT_CTRL ( ( volatile unsigned portLONG *) 0xe000ed04 )
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#define portNVIC_SYSPRI2 ( ( volatile unsigned portLONG *) 0xe000ed20 )
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#define portNVIC_SYSPRI1 ( ( volatile unsigned portLONG *) 0xe000ed1c )
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#define portNVIC_SYSTICK_CLK 0x00000004
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#define portNVIC_SYSTICK_INT 0x00000002
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#define portNVIC_SYSTICK_ENABLE 0x00000001
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#define portNVIC_PENDSVSET 0x10000000
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#define portNVIC_PENDSV_PRI ( ( ( unsigned portLONG ) configKERNEL_INTERRUPT_PRIORITY ) << 16 )
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#define portNVIC_SYSTICK_PRI ( ( ( unsigned portLONG ) configKERNEL_INTERRUPT_PRIORITY ) << 24 )
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/* Constants required to set up the initial stack. */
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#define portINITIAL_XPSR ( 0x01000000 )
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|
||||
/* For backward compatibility, ensure configKERNEL_INTERRUPT_PRIORITY is
|
||||
defined. The value 255 should also ensure backward compatibility.
|
||||
FreeRTOS.org versions prior to V4.3.0 did not include this definition. */
|
||||
#ifndef configKERNEL_INTERRUPT_PRIORITY
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#define configKERNEL_INTERRUPT_PRIORITY 0
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#endif
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||||
/* Each task maintains its own interrupt status in the critical nesting
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||||
variable. */
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unsigned portBASE_TYPE uxCriticalNesting = 0xaaaaaaaa;
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|
||||
/*
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* Setup the timer to generate the tick interrupts.
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*/
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||||
static void prvSetupTimerInterrupt( void );
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|
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/*
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* Set the MSP/PSP to a known value.
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||||
*/
|
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extern void vSetMSP( unsigned long ulValue );
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extern void vSetPSP( unsigned long ulValue );
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||||
|
||||
/*
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||||
* Utilities called from the assembler code.
|
||||
*/
|
||||
void vPortSwitchContext( void );
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void vPortIncrementTick( void );
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||||
|
||||
/*-----------------------------------------------------------*/
|
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|
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/*
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* See header file for description.
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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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/* Simulate the stack frame as it would be created by a context switch
|
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interrupt. */
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*pxTopOfStack = portINITIAL_XPSR; /* xPSR */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) pxCode; /* PC */
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pxTopOfStack--;
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*pxTopOfStack = 0xfffffffd; /* LR */
|
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pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
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*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
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pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
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*pxTopOfStack = 0x00000000; /* uxCriticalNesting. */
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|
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return pxTopOfStack;
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}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* See header file for description.
|
||||
*/
|
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portBASE_TYPE xPortStartScheduler( void )
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{
|
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/* Make PendSV and SysTick the lowest priority interrupts. */
|
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*(portNVIC_SYSPRI2) |= portNVIC_PENDSV_PRI;
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*(portNVIC_SYSPRI2) |= portNVIC_SYSTICK_PRI;
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/* Start the timer that generates the tick ISR. Interrupts are disabled
|
||||
here already. */
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prvSetupTimerInterrupt();
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|
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/* Start the first task. */
|
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vSetPSP( 0 );
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vSetMSP( *((unsigned portLONG *) 0 ) );
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*(portNVIC_INT_CTRL) |= portNVIC_PENDSVSET;
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|
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/* Enable interrupts */
|
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portENABLE_INTERRUPTS();
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|
||||
/* Should not get here! */
|
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return 0;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
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void vPortEndScheduler( void )
|
||||
{
|
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/* It is unlikely that the CM3 port will require this function as there
|
||||
is nothing to return to. */
|
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}
|
||||
/*-----------------------------------------------------------*/
|
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|
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void vPortYieldFromISR( void )
|
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{
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/* Set a PendSV to request a context switch. */
|
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*(portNVIC_INT_CTRL) |= portNVIC_PENDSVSET;
|
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|
||||
/* This function is also called in response to a Yield(), so we want
|
||||
the yield to occur immediately. */
|
||||
portENABLE_INTERRUPTS();
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}
|
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/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEnterCritical( void )
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{
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portDISABLE_INTERRUPTS();
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uxCriticalNesting++;
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}
|
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/*-----------------------------------------------------------*/
|
||||
|
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void vPortExitCritical( void )
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{
|
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uxCriticalNesting--;
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if( uxCriticalNesting == 0 )
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{
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portENABLE_INTERRUPTS();
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}
|
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}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
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/*
|
||||
* Setup the systick timer to generate the tick interrupts at the required
|
||||
* frequency.
|
||||
*/
|
||||
void prvSetupTimerInterrupt( void )
|
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{
|
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/* Configure SysTick to interrupt at the requested rate. */
|
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*(portNVIC_SYSTICK_LOAD) = configCPU_CLOCK_HZ / configTICK_RATE_HZ;
|
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*(portNVIC_SYSTICK_CTRL) = portNVIC_SYSTICK_CLK | portNVIC_SYSTICK_INT | portNVIC_SYSTICK_ENABLE;
|
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}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortSwitchContext( void )
|
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{
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vPortSetInterruptMask();
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vTaskSwitchContext();
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vPortClearInterruptMask();
|
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}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
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void vPortIncrementTick( void )
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{
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vPortSetInterruptMask();
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vTaskIncrementTick();
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vPortClearInterruptMask();
|
||||
}
|
||||
|
||||
|
||||
175
20080212/Source/portable/IAR/ARM_CM3/portasm.s
Normal file
175
20080212/Source/portable/IAR/ARM_CM3/portasm.s
Normal file
|
|
@ -0,0 +1,175 @@
|
|||
/*
|
||||
FreeRTOS.org V4.7.1 - 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.
|
||||
|
||||
***************************************************************************
|
||||
|
||||
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.
|
||||
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
/*
|
||||
Change from V4.2.1:
|
||||
|
||||
+ Introduced usage of configKERNEL_INTERRUPT_PRIORITY macro to set the
|
||||
interrupt priority used by the kernel.
|
||||
*/
|
||||
|
||||
#include <FreeRTOSConfig.h>
|
||||
|
||||
/* For backward compatibility, ensure configKERNEL_INTERRUPT_PRIORITY is
|
||||
defined. The value zero should also ensure backward compatibility.
|
||||
FreeRTOS.org versions prior to V4.3.0 did not include this definition. */
|
||||
#ifndef configKERNEL_INTERRUPT_PRIORITY
|
||||
#define configKERNEL_INTERRUPT_PRIORITY 0
|
||||
#endif
|
||||
|
||||
|
||||
RSEG CODE:CODE(2)
|
||||
thumb
|
||||
|
||||
EXTERN vPortYieldFromISR
|
||||
EXTERN vPortSwitchContext
|
||||
EXTERN vPortIncrementTick
|
||||
EXTERN uxCriticalNesting
|
||||
EXTERN pxCurrentTCB
|
||||
|
||||
PUBLIC vSetPSP
|
||||
PUBLIC vSetMSP
|
||||
PUBLIC xPortPendSVHandler
|
||||
PUBLIC xPortSysTickHandler
|
||||
PUBLIC vPortSetInterruptMask
|
||||
PUBLIC vPortClearInterruptMask
|
||||
|
||||
|
||||
vSetPSP:
|
||||
msr psp, r0
|
||||
bx lr
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vSetMSP
|
||||
msr msp, r0
|
||||
bx lr
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xPortPendSVHandler:
|
||||
mrs r0, psp
|
||||
cbz r0, no_save
|
||||
/* Save the context into the TCB. */
|
||||
stmdb r0!, {r4-r11}
|
||||
sub r0, r0, #0x04
|
||||
ldr r1, =uxCriticalNesting
|
||||
ldr r2, =pxCurrentTCB
|
||||
ldr r1, [r1]
|
||||
ldr r2, [r2]
|
||||
str r1, [r0]
|
||||
str r0, [r2]
|
||||
|
||||
no_save:
|
||||
push {r14}
|
||||
bl vPortSwitchContext
|
||||
pop {r14}
|
||||
/* Restore the context. */
|
||||
ldr r1, =pxCurrentTCB
|
||||
ldr r1, [r1]
|
||||
ldr r0, [r1]
|
||||
ldmia r0!, {r1, r4-r11}
|
||||
ldr r2, =uxCriticalNesting
|
||||
str r1, [r2]
|
||||
msr psp, r0
|
||||
orr r14, r14, #0xd
|
||||
/* Exit with interrupts in the state required by the task. */
|
||||
cbnz r1, sv_disable_interrupts
|
||||
bx r14
|
||||
|
||||
sv_disable_interrupts:
|
||||
mov r1, #configKERNEL_INTERRUPT_PRIORITY
|
||||
msr basepri, R1
|
||||
bx r14
|
||||
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xPortSysTickHandler:
|
||||
/* Call the scheduler tick function. */
|
||||
push {r14}
|
||||
bl vPortIncrementTick
|
||||
pop {r14}
|
||||
|
||||
/* If using preemption, also force a context switch. */
|
||||
#if configUSE_PREEMPTION == 1
|
||||
push {r14}
|
||||
bl vPortYieldFromISR
|
||||
pop {r14}
|
||||
#endif
|
||||
|
||||
/* Exit with interrupts in the correct state. */
|
||||
ldr r2, =uxCriticalNesting
|
||||
ldr r2, [r2]
|
||||
cbnz r2, tick_disable_interrupts
|
||||
bx r14
|
||||
|
||||
tick_disable_interrupts:
|
||||
mov r1, #configKERNEL_INTERRUPT_PRIORITY
|
||||
msr basepri, R1
|
||||
|
||||
bx r14
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortSetInterruptMask:
|
||||
push { r0 }
|
||||
mov R0, #configKERNEL_INTERRUPT_PRIORITY
|
||||
msr BASEPRI, R0
|
||||
pop { R0 }
|
||||
|
||||
bx r14
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortClearInterruptMask:
|
||||
PUSH { r0 }
|
||||
MOV R0, #0
|
||||
MSR BASEPRI, R0
|
||||
POP { R0 }
|
||||
|
||||
bx r14
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
END
|
||||
|
||||
127
20080212/Source/portable/IAR/ARM_CM3/portmacro.h
Normal file
127
20080212/Source/portable/IAR/ARM_CM3/portmacro.h
Normal file
|
|
@ -0,0 +1,127 @@
|
|||
/*
|
||||
FreeRTOS.org V4.7.1 - 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.
|
||||
|
||||
***************************************************************************
|
||||
|
||||
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.
|
||||
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
/*
|
||||
Change from V4.2.1:
|
||||
|
||||
+ Introduced usage of configKERNEL_INTERRUPT_PRIORITY macro to set the
|
||||
interrupt priority used by the kernel.
|
||||
*/
|
||||
|
||||
|
||||
#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 portLONG
|
||||
#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
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Architecture specifics. */
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 4
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Scheduler utilities. */
|
||||
extern void vPortYieldFromISR( void );
|
||||
|
||||
#define portYIELD() vPortYieldFromISR()
|
||||
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) vPortYieldFromISR()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Critical section management. */
|
||||
|
||||
extern void vPortEnterCritical( void );
|
||||
extern void vPortExitCritical( void );
|
||||
extern void vPortSetInterruptMask( void );
|
||||
extern void vPortClearInterruptMask( void );
|
||||
|
||||
#define portDISABLE_INTERRUPTS() vPortSetInterruptMask();
|
||||
#define portENABLE_INTERRUPTS() vPortClearInterruptMask();
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Task function macros as described on the FreeRTOS.org WEB site. */
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
|
||||
#define inline
|
||||
#define portNOP()
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue