mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2026-01-20 00:30:35 -05:00
This commit is contained in:
Richard Barry
parent
a869e61be6
commit
2bac2cf6c6
6215 changed files with 2146988 additions and 0 deletions
1914
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7S64.h
Normal file
1914
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7S64.h
Normal file
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
2715
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7X128.h
Normal file
2715
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7X128.h
Normal file
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
2715
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7X256.h
Normal file
2715
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/AT91SAM7X256.h
Normal file
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
|
|
@ -0,0 +1,130 @@
|
|||
;/*
|
||||
; FreeRTOS V7.1.0 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
;
|
||||
;
|
||||
; ***************************************************************************
|
||||
; * *
|
||||
; * FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
; * Complete, revised, and edited pdf reference manuals are also *
|
||||
; * available. *
|
||||
; * *
|
||||
; * Purchasing FreeRTOS documentation will not only help you, by *
|
||||
; * ensuring you get running as quickly as possible and with an *
|
||||
; * in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
; * the FreeRTOS project to continue with its mission of providing *
|
||||
; * professional grade, cross platform, de facto standard solutions *
|
||||
; * for microcontrollers - completely free of charge! *
|
||||
; * *
|
||||
; * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
; * *
|
||||
; * Thank you for using FreeRTOS, and thank you for your support! *
|
||||
; * *
|
||||
; ***************************************************************************
|
||||
;
|
||||
;
|
||||
; This file is part of the FreeRTOS distribution.
|
||||
;
|
||||
; FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
; the terms of the GNU General Public License (version 2) as published by the
|
||||
; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
; >>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
; distribute a combined work that includes FreeRTOS without being obliged to
|
||||
; provide the source code for proprietary components outside of the FreeRTOS
|
||||
; kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
; more details. You should have received a copy of the GNU General Public
|
||||
; License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
; can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
; by writing to Richard Barry, contact details for whom are available on the
|
||||
; FreeRTOS WEB site.
|
||||
;
|
||||
; 1 tab == 4 spaces!
|
||||
;
|
||||
; 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.
|
||||
;*/
|
||||
EXTERN pxCurrentTCB
|
||||
EXTERN ulCriticalNesting
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; Context save and restore macro definitions
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
portSAVE_CONTEXT MACRO
|
||||
|
||||
; Push R0 as we are going to use the register.
|
||||
STMDB SP!, {R0}
|
||||
|
||||
; Set R0 to point to the task stack pointer.
|
||||
STMDB SP, {SP}^
|
||||
NOP
|
||||
SUB SP, SP, #4
|
||||
LDMIA SP!, {R0}
|
||||
|
||||
; Push the return address onto the stack.
|
||||
STMDB R0!, {LR}
|
||||
|
||||
; Now we have saved LR we can use it instead of R0.
|
||||
MOV LR, R0
|
||||
|
||||
; Pop R0 so we can save it onto the system mode stack.
|
||||
LDMIA SP!, {R0}
|
||||
|
||||
; Push all the system mode registers onto the task stack.
|
||||
STMDB LR, {R0-LR}^
|
||||
NOP
|
||||
SUB LR, LR, #60
|
||||
|
||||
; Push the SPSR onto the task stack.
|
||||
MRS R0, SPSR
|
||||
STMDB LR!, {R0}
|
||||
|
||||
LDR R0, =ulCriticalNesting
|
||||
LDR R0, [R0]
|
||||
STMDB LR!, {R0}
|
||||
|
||||
; Store the new top of stack for the task.
|
||||
LDR R1, =pxCurrentTCB
|
||||
LDR R0, [R1]
|
||||
STR LR, [R0]
|
||||
|
||||
ENDM
|
||||
|
||||
|
||||
portRESTORE_CONTEXT MACRO
|
||||
|
||||
; Set the LR to the task stack.
|
||||
LDR R1, =pxCurrentTCB
|
||||
LDR R0, [R1]
|
||||
LDR LR, [R0]
|
||||
|
||||
; The critical nesting depth is the first item on the stack.
|
||||
; Load it into the ulCriticalNesting variable.
|
||||
LDR R0, =ulCriticalNesting
|
||||
LDMFD LR!, {R1}
|
||||
STR R1, [R0]
|
||||
|
||||
; Get the SPSR from the stack.
|
||||
LDMFD LR!, {R0}
|
||||
MSR SPSR_cxsf, R0
|
||||
|
||||
; Restore all system mode registers for the task.
|
||||
LDMFD LR, {R0-R14}^
|
||||
NOP
|
||||
|
||||
; Restore the return address.
|
||||
LDR LR, [LR, #+60]
|
||||
|
||||
; And return - correcting the offset in the LR to obtain the
|
||||
; correct address.
|
||||
SUBS PC, LR, #4
|
||||
|
||||
ENDM
|
||||
|
||||
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
285
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/port.c
Normal file
285
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/port.c
Normal file
|
|
@ -0,0 +1,285 @@
|
|||
/*
|
||||
FreeRTOS V7.1.0 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
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.
|
||||
*/
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Implementation of functions defined in portable.h for the Atmel ARM7 port.
|
||||
*----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdlib.h>
|
||||
|
||||
/* Scheduler includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
|
||||
/* Constants required to setup the initial stack. */
|
||||
#define portINITIAL_SPSR ( ( portSTACK_TYPE ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
|
||||
#define portTHUMB_MODE_BIT ( ( portSTACK_TYPE ) 0x20 )
|
||||
#define portINSTRUCTION_SIZE ( ( portSTACK_TYPE ) 4 )
|
||||
|
||||
/* Constants required to setup the PIT. */
|
||||
#define portPIT_CLOCK_DIVISOR ( ( unsigned long ) 16 )
|
||||
#define portPIT_COUNTER_VALUE ( ( ( configCPU_CLOCK_HZ / portPIT_CLOCK_DIVISOR ) / 1000UL ) * portTICK_RATE_MS )
|
||||
|
||||
/* Constants required to handle critical sections. */
|
||||
#define portNO_CRITICAL_NESTING ( ( unsigned long ) 0 )
|
||||
|
||||
|
||||
#define portINT_LEVEL_SENSITIVE 0
|
||||
#define portPIT_ENABLE ( ( unsigned short ) 0x1 << 24 )
|
||||
#define portPIT_INT_ENABLE ( ( unsigned short ) 0x1 << 25 )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Setup the PIT to generate the tick interrupts. */
|
||||
static void prvSetupTimerInterrupt( void );
|
||||
|
||||
/* ulCriticalNesting will get set to zero when the first task starts. It
|
||||
cannot be initialised to 0 as this will cause interrupts to be enabled
|
||||
during the kernel initialisation process. */
|
||||
unsigned long ulCriticalNesting = ( unsigned long ) 9999;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* Initialise the stack of a task to look exactly as if a call to
|
||||
* portSAVE_CONTEXT had been called.
|
||||
*
|
||||
* See header file for description.
|
||||
*/
|
||||
portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters )
|
||||
{
|
||||
portSTACK_TYPE *pxOriginalTOS;
|
||||
|
||||
pxOriginalTOS = pxTopOfStack;
|
||||
|
||||
/* To ensure asserts in tasks.c don't fail, although in this case the assert
|
||||
is not really required. */
|
||||
pxTopOfStack--;
|
||||
|
||||
/* Setup the initial stack of the task. The stack is set exactly as
|
||||
expected by the portRESTORE_CONTEXT() macro. */
|
||||
|
||||
/* First on the stack is the return address - which in this case is the
|
||||
start of the task. The offset is added to make the return address appear
|
||||
as it would within an IRQ ISR. */
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) pxCode + portINSTRUCTION_SIZE;
|
||||
pxTopOfStack--;
|
||||
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0xaaaaaaaa; /* R14 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x12121212; /* R12 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x11111111; /* R11 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x10101010; /* R10 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x09090909; /* R9 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x08080808; /* R8 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x07070707; /* R7 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x06060606; /* R6 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x05050505; /* R5 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x04040404; /* R4 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x03030303; /* R3 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x02020202; /* R2 */
|
||||
pxTopOfStack--;
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) 0x01010101; /* R1 */
|
||||
pxTopOfStack--;
|
||||
|
||||
/* When the task starts is will expect to find the function parameter in
|
||||
R0. */
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
|
||||
pxTopOfStack--;
|
||||
|
||||
/* The status register is set for system mode, with interrupts enabled. */
|
||||
*pxTopOfStack = ( portSTACK_TYPE ) portINITIAL_SPSR;
|
||||
|
||||
if( ( ( unsigned long ) pxCode & 0x01UL ) != 0x00UL )
|
||||
{
|
||||
/* We want the task to start in thumb mode. */
|
||||
*pxTopOfStack |= portTHUMB_MODE_BIT;
|
||||
}
|
||||
|
||||
pxTopOfStack--;
|
||||
|
||||
/* Interrupt flags cannot always be stored on the stack and will
|
||||
instead be stored in a variable, which is then saved as part of the
|
||||
tasks context. */
|
||||
*pxTopOfStack = portNO_CRITICAL_NESTING;
|
||||
|
||||
return pxTopOfStack;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
portBASE_TYPE xPortStartScheduler( void )
|
||||
{
|
||||
extern void vPortStartFirstTask( void );
|
||||
|
||||
/* Start the timer that generates the tick ISR. Interrupts are disabled
|
||||
here already. */
|
||||
prvSetupTimerInterrupt();
|
||||
|
||||
/* Start the first task. */
|
||||
vPortStartFirstTask();
|
||||
|
||||
/* Should not get here! */
|
||||
return 0;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEndScheduler( void )
|
||||
{
|
||||
/* It is unlikely that the ARM port will require this function as there
|
||||
is nothing to return to. */
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if configUSE_PREEMPTION == 0
|
||||
|
||||
/* The cooperative scheduler requires a normal IRQ service routine to
|
||||
simply increment the system tick. */
|
||||
static __arm __irq void vPortNonPreemptiveTick( void );
|
||||
static __arm __irq void vPortNonPreemptiveTick( void )
|
||||
{
|
||||
unsigned long ulDummy;
|
||||
|
||||
/* Increment the tick count - which may wake some tasks but as the
|
||||
preemptive scheduler is not being used any woken task is not given
|
||||
processor time no matter what its priority. */
|
||||
vTaskIncrementTick();
|
||||
|
||||
/* Clear the PIT interrupt. */
|
||||
ulDummy = AT91C_BASE_PITC->PITC_PIVR;
|
||||
|
||||
/* End the interrupt in the AIC. */
|
||||
AT91C_BASE_AIC->AIC_EOICR = ulDummy;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
/* Currently the IAR port requires the preemptive tick function to be
|
||||
defined in an asm file. */
|
||||
|
||||
#endif
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetupTimerInterrupt( void )
|
||||
{
|
||||
AT91PS_PITC pxPIT = AT91C_BASE_PITC;
|
||||
|
||||
/* Setup the AIC for PIT interrupts. The interrupt routine chosen depends
|
||||
on whether the preemptive or cooperative scheduler is being used. */
|
||||
#if configUSE_PREEMPTION == 0
|
||||
|
||||
AT91F_AIC_ConfigureIt( AT91C_BASE_AIC, AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void (*)(void) ) vPortNonPreemptiveTick );
|
||||
|
||||
#else
|
||||
|
||||
extern void ( vPortPreemptiveTick )( void );
|
||||
AT91F_AIC_ConfigureIt( AT91C_BASE_AIC, AT91C_ID_SYS, AT91C_AIC_PRIOR_HIGHEST, portINT_LEVEL_SENSITIVE, ( void (*)(void) ) vPortPreemptiveTick );
|
||||
|
||||
#endif
|
||||
|
||||
/* Configure the PIT period. */
|
||||
pxPIT->PITC_PIMR = portPIT_ENABLE | portPIT_INT_ENABLE | portPIT_COUNTER_VALUE;
|
||||
|
||||
/* Enable the interrupt. Global interrupts are disables at this point so
|
||||
this is safe. */
|
||||
AT91F_AIC_EnableIt( AT91C_BASE_AIC, AT91C_ID_SYS );
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortEnterCritical( void )
|
||||
{
|
||||
/* Disable interrupts first! */
|
||||
__disable_interrupt();
|
||||
|
||||
/* Now interrupts are disabled ulCriticalNesting can be accessed
|
||||
directly. Increment ulCriticalNesting to keep a count of how many times
|
||||
portENTER_CRITICAL() has been called. */
|
||||
ulCriticalNesting++;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortExitCritical( void )
|
||||
{
|
||||
if( ulCriticalNesting > portNO_CRITICAL_NESTING )
|
||||
{
|
||||
/* Decrement the nesting count as we are leaving a critical section. */
|
||||
ulCriticalNesting--;
|
||||
|
||||
/* If the nesting level has reached zero then interrupts should be
|
||||
re-enabled. */
|
||||
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
|
||||
{
|
||||
__enable_interrupt();
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
111
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/portasm.s79
Normal file
111
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/portasm.s79
Normal file
|
|
@ -0,0 +1,111 @@
|
|||
;/*
|
||||
; FreeRTOS V7.1.0 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
;
|
||||
;
|
||||
; ***************************************************************************
|
||||
; * *
|
||||
; * FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
; * Complete, revised, and edited pdf reference manuals are also *
|
||||
; * available. *
|
||||
; * *
|
||||
; * Purchasing FreeRTOS documentation will not only help you, by *
|
||||
; * ensuring you get running as quickly as possible and with an *
|
||||
; * in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
; * the FreeRTOS project to continue with its mission of providing *
|
||||
; * professional grade, cross platform, de facto standard solutions *
|
||||
; * for microcontrollers - completely free of charge! *
|
||||
; * *
|
||||
; * >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
; * *
|
||||
; * Thank you for using FreeRTOS, and thank you for your support! *
|
||||
; * *
|
||||
; ***************************************************************************
|
||||
;
|
||||
;
|
||||
; This file is part of the FreeRTOS distribution.
|
||||
;
|
||||
; FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
; the terms of the GNU General Public License (version 2) as published by the
|
||||
; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
; >>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
; distribute a combined work that includes FreeRTOS without being obliged to
|
||||
; provide the source code for proprietary components outside of the FreeRTOS
|
||||
; kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
; more details. You should have received a copy of the GNU General Public
|
||||
; License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
; can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
; by writing to Richard Barry, contact details for whom are available on the
|
||||
; FreeRTOS WEB site.
|
||||
;
|
||||
; 1 tab == 4 spaces!
|
||||
;
|
||||
; 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.
|
||||
;*/
|
||||
RSEG ICODE:CODE
|
||||
CODE32
|
||||
|
||||
EXTERN vTaskSwitchContext
|
||||
EXTERN vTaskIncrementTick
|
||||
|
||||
PUBLIC vPortYieldProcessor
|
||||
PUBLIC vPortPreemptiveTick
|
||||
PUBLIC vPortStartFirstTask
|
||||
|
||||
#include "AT91SAM7S64_inc.h"
|
||||
#include "ISR_Support.h"
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; Starting the first task is just a matter of restoring the context that
|
||||
; was created by pxPortInitialiseStack().
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
vPortStartFirstTask:
|
||||
portRESTORE_CONTEXT
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; Manual context switch function. This is the SWI hander.
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
vPortYieldProcessor:
|
||||
ADD LR, LR, #4 ; Add 4 to the LR to make the LR appear exactly
|
||||
; as if the context was saved during and IRQ
|
||||
; handler.
|
||||
|
||||
portSAVE_CONTEXT ; Save the context of the current task...
|
||||
LDR R0, =vTaskSwitchContext ; before selecting the next task to execute.
|
||||
mov lr, pc
|
||||
BX R0
|
||||
portRESTORE_CONTEXT ; Restore the context of the selected task.
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
; Preemptive context switch function. This will only ever get installed if
|
||||
; portUSE_PREEMPTION is set to 1 in portmacro.h.
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
vPortPreemptiveTick:
|
||||
portSAVE_CONTEXT ; Save the context of the current task.
|
||||
|
||||
LDR R0, =vTaskIncrementTick ; Increment the tick count - this may wake a task.
|
||||
mov lr, pc
|
||||
BX R0
|
||||
LDR R0, =vTaskSwitchContext ; Select the next task to execute.
|
||||
mov lr, pc
|
||||
BX R0
|
||||
|
||||
LDR R14, =AT91C_BASE_PITC ; Clear the PIT interrupt
|
||||
LDR R0, [R14, #PITC_PIVR ]
|
||||
|
||||
LDR R14, =AT91C_BASE_AIC ; Mark the End of Interrupt on the AIC
|
||||
STR R14, [R14, #AIC_EOICR]
|
||||
|
||||
portRESTORE_CONTEXT ; Restore the context of the selected task.
|
||||
|
||||
|
||||
END
|
||||
|
||||
133
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/portmacro.h
Normal file
133
20120401V7.1.1-RC1/Source/portable/IAR/AtmelSAM7S64/portmacro.h
Normal file
|
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
FreeRTOS V7.1.0 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* FreeRTOS tutorial books are available in pdf and paperback. *
|
||||
* Complete, revised, and edited pdf reference manuals are also *
|
||||
* available. *
|
||||
* *
|
||||
* Purchasing FreeRTOS documentation will not only help you, by *
|
||||
* ensuring you get running as quickly as possible and with an *
|
||||
* in-depth knowledge of how to use FreeRTOS, it will also help *
|
||||
* the FreeRTOS project to continue with its mission of providing *
|
||||
* professional grade, cross platform, de facto standard solutions *
|
||||
* for microcontrollers - completely free of charge! *
|
||||
* *
|
||||
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
|
||||
* *
|
||||
* Thank you for using FreeRTOS, and thank you for your support! *
|
||||
* *
|
||||
***************************************************************************
|
||||
|
||||
|
||||
This file is part of the FreeRTOS distribution.
|
||||
|
||||
FreeRTOS is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License (version 2) as published by the
|
||||
Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
||||
>>>NOTE<<< The modification to the GPL is included to allow you to
|
||||
distribute a combined work that includes FreeRTOS without being obliged to
|
||||
provide the source code for proprietary components outside of the FreeRTOS
|
||||
kernel. FreeRTOS is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
more details. You should have received a copy of the GNU General Public
|
||||
License and the FreeRTOS license exception along with FreeRTOS; if not it
|
||||
can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
||||
by writing to Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
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 portLONG
|
||||
#define portBASE_TYPE portLONG
|
||||
|
||||
#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 portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_RATE_MS ( ( portTickType ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portYIELD() asm ( "SWI 0" )
|
||||
#define portNOP() asm ( "NOP" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Critical section handling. */
|
||||
__arm __interwork void vPortDisableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnterCritical( void );
|
||||
__arm __interwork void vPortExitCritical( void );
|
||||
|
||||
#define portDISABLE_INTERRUPTS() __disable_interrupt()
|
||||
#define portENABLE_INTERRUPTS() __enable_interrupt()
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Task utilities. */
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) \
|
||||
{ \
|
||||
extern void vTaskSwitchContext( void ); \
|
||||
\
|
||||
if( xSwitchRequired ) \
|
||||
{ \
|
||||
vTaskSwitchContext(); \
|
||||
} \
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* 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 )
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue