diff options
| author | Damien George | 2016-05-27 14:23:56 +0100 |
|---|---|---|
| committer | Damien George | 2016-06-28 11:28:50 +0100 |
| commit | 5c0fc73f33dde64d7e56f3f1ed85eb44957c804e (patch) | |
| tree | 4017c1b97d9b9c9063564833b6e927bf90cb45be /cc3200/FreeRTOS/Source/portable | |
| parent | e90b6ce0b5af51ef195aa98dad35a185b77c5075 (diff) | |
cc3200: Update FreeRTOS to v9.0.0.
This is a pristine copy (actually a subset of files) of upstream FreeRTOS
v9.0.0.
Modifications to the previous version of FreeRTOS (v8.1.2) included
addition of __attribute__ ((section (".boot"))) to the following
functions:
pxPortInitialiseStack
prvTaskExitError
prvPortStartFirstTask
xPortStartScheduler
vPortSetupTimerInterrupt
xTaskGenericCreate
vTaskStartScheduler
prvInitialiseTCBVariables
prvInitialiseTaskLists
prvAllocateTCBAndStack
This attribute will need to be reinstated on a case-by-case basis
because some of the above functions are now removed/changed.
Diffstat (limited to 'cc3200/FreeRTOS/Source/portable')
| -rw-r--r-- | cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c | 135 | ||||
| -rw-r--r-- | cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h | 167 | ||||
| -rw-r--r-- | cc3200/FreeRTOS/Source/portable/MemMang/heap_4.c | 105 |
3 files changed, 235 insertions, 172 deletions
diff --git a/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c b/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c index 8c94d7d79..f6fe755fb 100644 --- a/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c +++ b/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c @@ -1,60 +1,64 @@ /* - FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd. + FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. All rights reserved VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that has become a de facto standard. * - * * - * Help yourself get started quickly and support the FreeRTOS * - * project by purchasing a FreeRTOS tutorial book, reference * - * manual, or both from: http://www.FreeRTOS.org/Documentation * - * * - * Thank you! * - * * - *************************************************************************** - 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. + 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. Full license text is available from the following + FOR A PARTICULAR PURPOSE. Full license text is available on the following link: http://www.freertos.org/a00114.html - 1 tab == 4 spaces! - *************************************************************************** * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * + * FreeRTOS provides completely free yet professionally developed, * + * robust, strictly quality controlled, supported, and cross * + * platform software that is more than just the market leader, it * + * is the industry's de facto standard. * * * - * http://www.FreeRTOS.org/FAQHelp.html * + * Help yourself get started quickly while simultaneously helping * + * to support the FreeRTOS project by purchasing a FreeRTOS * + * tutorial book, reference manual, or both: * + * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** - http://www.FreeRTOS.org - Documentation, books, training, latest versions, - license and Real Time Engineers Ltd. contact details. + http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading + the FAQ page "My application does not run, what could be wrong?". Have you + defined configASSERT()? + + http://www.FreeRTOS.org/support - In return for receiving this top quality + embedded software for free we request you assist our global community by + participating in the support forum. + + http://www.FreeRTOS.org/training - Investing in training allows your team to + be as productive as possible as early as possible. Now you can receive + FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers + Ltd, and the world's leading authority on the world's leading RTOS. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, including FreeRTOS+Trace - an indispensable productivity tool, a DOS compatible FAT file system, and our tiny thread aware UDP/IP stack. - http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and middleware. + http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. + Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. + + http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High + Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS + licenses offer ticketed support, indemnification and commercial middleware. http://www.SafeRTOS.com - High Integrity Systems also provide a safety engineered and independently SIL3 certified version for use in safety and @@ -113,6 +117,9 @@ FreeRTOS.org versions prior to V4.4.0 did not include this definition. */ #define portPRIORITY_GROUP_MASK ( 0x07UL << 8UL ) #define portPRIGROUP_SHIFT ( 8UL ) +/* Masks off all bits but the VECTACTIVE bits in the ICSR register. */ +#define portVECTACTIVE_MASK ( 0xFFUL ) + /* Constants required to set up the initial stack. */ #define portINITIAL_XPSR ( 0x01000000UL ) @@ -124,8 +131,12 @@ occurred while the SysTick counter is stopped during tickless idle calculations. */ #define portMISSED_COUNTS_FACTOR ( 45UL ) +/* For strict compliance with the Cortex-M spec the task start address should +have bit-0 clear, as it is loaded into the PC on exit from an ISR. */ +#define portSTART_ADDRESS_MASK ( ( StackType_t ) 0xfffffffeUL ) + /* Let the user override the pre-loading of the initial LR with the address of -prvTaskExitError() in case is messes up unwinding of the stack in the +prvTaskExitError() in case it messes up unwinding of the stack in the debugger. */ #ifdef configTASK_RETURN_ADDRESS #define portTASK_RETURN_ADDRESS configTASK_RETURN_ADDRESS @@ -202,7 +213,6 @@ static void prvTaskExitError( void ); /* * See header file for description. */ -__attribute__ ((section (".boot"))) StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ) { /* Simulate the stack frame as it would be created by a context switch @@ -210,7 +220,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px pxTopOfStack--; /* Offset added to account for the way the MCU uses the stack on entry/exit of interrupts. */ *pxTopOfStack = portINITIAL_XPSR; /* xPSR */ pxTopOfStack--; - *pxTopOfStack = ( StackType_t ) pxCode; /* PC */ + *pxTopOfStack = ( ( StackType_t ) pxCode ) & portSTART_ADDRESS_MASK; /* PC */ pxTopOfStack--; *pxTopOfStack = ( StackType_t ) portTASK_RETURN_ADDRESS; /* LR */ pxTopOfStack -= 5; /* R12, R3, R2 and R1. */ @@ -221,7 +231,6 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px } /*-----------------------------------------------------------*/ -__attribute__ ((section (".boot"))) static void prvTaskExitError( void ) { /* A function that implements a task must not exit or attempt to return to @@ -250,13 +259,12 @@ void vPortSVCHandler( void ) " orr r14, #0xd \n" " bx r14 \n" " \n" - " .align 2 \n" + " .align 4 \n" "pxCurrentTCBConst2: .word pxCurrentTCB \n" ); } /*-----------------------------------------------------------*/ -__attribute__ ((section (".boot"))) static void prvPortStartFirstTask( void ) { __asm volatile( @@ -277,7 +285,6 @@ static void prvPortStartFirstTask( void ) /* * See header file for description. */ -__attribute__ ((section (".boot"))) BaseType_t xPortStartScheduler( void ) { /* configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0. @@ -361,27 +368,13 @@ void vPortEndScheduler( void ) } /*-----------------------------------------------------------*/ -void vPortYield( void ) -{ - /* Set a PendSV to request a context switch. */ - portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; - - /* Barriers are normally not required but do ensure the code is completely - within the specified behaviour for the architecture. */ - __asm volatile( "dsb" ); - __asm volatile( "isb" ); -} -/*-----------------------------------------------------------*/ - void vPortEnterCritical( void ) { portDISABLE_INTERRUPTS(); uxCriticalNesting++; - __asm volatile( "dsb" ); - __asm volatile( "isb" ); - + /* This is not the interrupt safe version of the enter critical function so - assert() if it is being called from an interrupt context. Only API + assert() if it is being called from an interrupt context. Only API functions that end in "FromISR" can be used in an interrupt. Only assert if the critical nesting count is 1 to protect against recursive calls if the assert function also uses a critical section. */ @@ -403,37 +396,6 @@ void vPortExitCritical( void ) } /*-----------------------------------------------------------*/ -__attribute__(( naked )) uint32_t ulPortSetInterruptMask( void ) -{ - __asm volatile \ - ( \ - " mrs r0, basepri \n" \ - " mov r1, %0 \n" \ - " msr basepri, r1 \n" \ - " bx lr \n" \ - :: "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "r0", "r1" \ - ); - - /* This return will not be reached but is necessary to prevent compiler - warnings. */ - return 0; -} -/*-----------------------------------------------------------*/ - -__attribute__(( naked )) void vPortClearInterruptMask( uint32_t ulNewMaskValue ) -{ - __asm volatile \ - ( \ - " msr basepri, r0 \n" \ - " bx lr \n" \ - :::"r0" \ - ); - - /* Just to avoid compiler warnings. */ - ( void ) ulNewMaskValue; -} -/*-----------------------------------------------------------*/ - void xPortPendSVHandler( void ) { /* This is a naked function. */ @@ -464,7 +426,7 @@ void xPortPendSVHandler( void ) " isb \n" " bx r14 \n" " \n" - " .align 2 \n" + " .align 4 \n" "pxCurrentTCBConst: .word pxCurrentTCB \n" ::"i"(configMAX_SYSCALL_INTERRUPT_PRIORITY) ); @@ -477,7 +439,7 @@ void xPortSysTickHandler( void ) executes all interrupts must be unmasked. There is therefore no need to save and then restore the interrupt mask value as its value is already known. */ - ( void ) portSET_INTERRUPT_MASK_FROM_ISR(); + portDISABLE_INTERRUPTS(); { /* Increment the RTOS tick. */ if( xTaskIncrementTick() != pdFALSE ) @@ -487,7 +449,7 @@ void xPortSysTickHandler( void ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; } } - portCLEAR_INTERRUPT_MASK_FROM_ISR( 0 ); + portENABLE_INTERRUPTS(); } /*-----------------------------------------------------------*/ @@ -522,6 +484,8 @@ void xPortSysTickHandler( void ) /* Enter a critical section but don't use the taskENTER_CRITICAL() method as that will mask interrupts that should exit sleep mode. */ __asm volatile( "cpsid i" ); + __asm volatile( "dsb" ); + __asm volatile( "isb" ); /* If a context switch is pending or a task is waiting for the scheduler to be unsuspended then abandon the low power entry. */ @@ -621,7 +585,7 @@ void xPortSysTickHandler( void ) /* The reload value is set to whatever fraction of a single tick period remains. */ - portNVIC_SYSTICK_LOAD_REG = ( ( ulCompleteTickPeriods + 1 ) * ulTimerCountsForOneTick ) - ulCompletedSysTickDecrements; + portNVIC_SYSTICK_LOAD_REG = ( ( ulCompleteTickPeriods + 1UL ) * ulTimerCountsForOneTick ) - ulCompletedSysTickDecrements; } /* Restart SysTick so it runs from portNVIC_SYSTICK_LOAD_REG @@ -647,7 +611,6 @@ void xPortSysTickHandler( void ) * Setup the systick timer to generate the tick interrupts at the required * frequency. */ -__attribute__ ((section (".boot"))) __attribute__(( weak )) void vPortSetupTimerInterrupt( void ) { /* Calculate the constants required to configure the tick interrupt. */ diff --git a/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h b/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h index f497393e6..d44fc9222 100644 --- a/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h +++ b/cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h @@ -1,60 +1,64 @@ /* - FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd. + FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. All rights reserved VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that has become a de facto standard. * - * * - * Help yourself get started quickly and support the FreeRTOS * - * project by purchasing a FreeRTOS tutorial book, reference * - * manual, or both from: http://www.FreeRTOS.org/Documentation * - * * - * Thank you! * - * * - *************************************************************************** - 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. + 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. Full license text is available from the following + FOR A PARTICULAR PURPOSE. Full license text is available on the following link: http://www.freertos.org/a00114.html - 1 tab == 4 spaces! - *************************************************************************** * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * + * FreeRTOS provides completely free yet professionally developed, * + * robust, strictly quality controlled, supported, and cross * + * platform software that is more than just the market leader, it * + * is the industry's de facto standard. * * * - * http://www.FreeRTOS.org/FAQHelp.html * + * Help yourself get started quickly while simultaneously helping * + * to support the FreeRTOS project by purchasing a FreeRTOS * + * tutorial book, reference manual, or both: * + * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** - http://www.FreeRTOS.org - Documentation, books, training, latest versions, - license and Real Time Engineers Ltd. contact details. + http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading + the FAQ page "My application does not run, what could be wrong?". Have you + defined configASSERT()? + + http://www.FreeRTOS.org/support - In return for receiving this top quality + embedded software for free we request you assist our global community by + participating in the support forum. + + http://www.FreeRTOS.org/training - Investing in training allows your team to + be as productive as possible as early as possible. Now you can receive + FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers + Ltd, and the world's leading authority on the world's leading RTOS. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, including FreeRTOS+Trace - an indispensable productivity tool, a DOS compatible FAT file system, and our tiny thread aware UDP/IP stack. - http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and middleware. + http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. + Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. + + http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High + Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS + licenses offer ticketed support, indemnification and commercial middleware. http://www.SafeRTOS.com - High Integrity Systems also provide a safety engineered and independently SIL3 certified version for use in safety and @@ -100,6 +104,10 @@ typedef unsigned long UBaseType_t; #else typedef uint32_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffffffffUL + + /* 32-bit tick type on a 32-bit architecture, so reads of the tick count do + not need to be guarded with a critical section. */ + #define portTICK_TYPE_IS_ATOMIC 1 #endif /*-----------------------------------------------------------*/ @@ -109,29 +117,34 @@ typedef unsigned long UBaseType_t; #define portBYTE_ALIGNMENT 8 /*-----------------------------------------------------------*/ - /* Scheduler utilities. */ -extern void vPortYield( void ); +#define portYIELD() \ +{ \ + /* Set a PendSV to request a context switch. */ \ + portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; \ + \ + /* Barriers are normally not required but do ensure the code is completely \ + within the specified behaviour for the architecture. */ \ + __asm volatile( "dsb" ); \ + __asm volatile( "isb" ); \ +} + #define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) ) -/* Masks off all bits but the VECTACTIVE bits in the ICSR register. */ -#define portVECTACTIVE_MASK ( 0x1FUL ) #define portNVIC_PENDSVSET_BIT ( 1UL << 28UL ) -#define portYIELD() vPortYield() -#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT +#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) portYIELD() #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x ) /*-----------------------------------------------------------*/ /* Critical section management. */ extern void vPortEnterCritical( void ); extern void vPortExitCritical( void ); -extern uint32_t ulPortSetInterruptMask( void ); -extern void vPortClearInterruptMask( uint32_t ulNewMaskValue ); -#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetInterruptMask() -#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortClearInterruptMask(x) -#define portDISABLE_INTERRUPTS() ulPortSetInterruptMask() -#define portENABLE_INTERRUPTS() vPortClearInterruptMask(0) +#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI() +#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortSetBASEPRI(x) +#define portDISABLE_INTERRUPTS() vPortRaiseBASEPRI() +#define portENABLE_INTERRUPTS() vPortSetBASEPRI(0) #define portENTER_CRITICAL() vPortEnterCritical() #define portEXIT_CRITICAL() vPortExitCritical() + /*-----------------------------------------------------------*/ /* Task function macros as described on the FreeRTOS.org WEB site. These are @@ -175,7 +188,7 @@ not necessary for to use this port. They are defined so the common demo files /*-----------------------------------------------------------*/ - #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - ucPortCountLeadingZeros( ( uxReadyPriorities ) ) ) + #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31UL - ( uint32_t ) ucPortCountLeadingZeros( ( uxReadyPriorities ) ) ) #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ @@ -189,6 +202,80 @@ not necessary for to use this port. They are defined so the common demo files /* portNOP() is not required by this port. */ #define portNOP() +#define portINLINE __inline + +#ifndef portFORCE_INLINE + #define portFORCE_INLINE inline __attribute__(( always_inline)) +#endif + +portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void ) +{ +uint32_t ulCurrentInterrupt; +BaseType_t xReturn; + + /* Obtain the number of the currently executing interrupt. */ + __asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) ); + + if( ulCurrentInterrupt == 0 ) + { + xReturn = pdFALSE; + } + else + { + xReturn = pdTRUE; + } + + return xReturn; +} + +/*-----------------------------------------------------------*/ + +portFORCE_INLINE static void vPortRaiseBASEPRI( void ) +{ +uint32_t ulNewBASEPRI; + + __asm volatile + ( + " mov %0, %1 \n" \ + " msr basepri, %0 \n" \ + " isb \n" \ + " dsb \n" \ + :"=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) + ); +} + +/*-----------------------------------------------------------*/ + +portFORCE_INLINE static uint32_t ulPortRaiseBASEPRI( void ) +{ +uint32_t ulOriginalBASEPRI, ulNewBASEPRI; + + __asm volatile + ( + " mrs %0, basepri \n" \ + " mov %1, %2 \n" \ + " msr basepri, %1 \n" \ + " isb \n" \ + " dsb \n" \ + :"=r" (ulOriginalBASEPRI), "=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) + ); + + /* This return will not be reached but is necessary to prevent compiler + warnings. */ + return ulOriginalBASEPRI; +} +/*-----------------------------------------------------------*/ + +portFORCE_INLINE static void vPortSetBASEPRI( uint32_t ulNewMaskValue ) +{ + __asm volatile + ( + " msr basepri, %0 " :: "r" ( ulNewMaskValue ) + ); +} +/*-----------------------------------------------------------*/ + + #ifdef __cplusplus } #endif diff --git a/cc3200/FreeRTOS/Source/portable/MemMang/heap_4.c b/cc3200/FreeRTOS/Source/portable/MemMang/heap_4.c index 94551c25c..e7c7ade68 100644 --- a/cc3200/FreeRTOS/Source/portable/MemMang/heap_4.c +++ b/cc3200/FreeRTOS/Source/portable/MemMang/heap_4.c @@ -1,60 +1,64 @@ /* - FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd. + FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. All rights reserved VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that has become a de facto standard. * - * * - * Help yourself get started quickly and support the FreeRTOS * - * project by purchasing a FreeRTOS tutorial book, reference * - * manual, or both from: http://www.FreeRTOS.org/Documentation * - * * - * Thank you! * - * * - *************************************************************************** - 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. + 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. Full license text is available from the following + FOR A PARTICULAR PURPOSE. Full license text is available on the following link: http://www.freertos.org/a00114.html - 1 tab == 4 spaces! - *************************************************************************** * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * + * FreeRTOS provides completely free yet professionally developed, * + * robust, strictly quality controlled, supported, and cross * + * platform software that is more than just the market leader, it * + * is the industry's de facto standard. * * * - * http://www.FreeRTOS.org/FAQHelp.html * + * Help yourself get started quickly while simultaneously helping * + * to support the FreeRTOS project by purchasing a FreeRTOS * + * tutorial book, reference manual, or both: * + * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** - http://www.FreeRTOS.org - Documentation, books, training, latest versions, - license and Real Time Engineers Ltd. contact details. + http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading + the FAQ page "My application does not run, what could be wrong?". Have you + defined configASSERT()? + + http://www.FreeRTOS.org/support - In return for receiving this top quality + embedded software for free we request you assist our global community by + participating in the support forum. + + http://www.FreeRTOS.org/training - Investing in training allows your team to + be as productive as possible as early as possible. Now you can receive + FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers + Ltd, and the world's leading authority on the world's leading RTOS. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, including FreeRTOS+Trace - an indispensable productivity tool, a DOS compatible FAT file system, and our tiny thread aware UDP/IP stack. - http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and middleware. + http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. + Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. + + http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High + Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS + licenses offer ticketed support, indemnification and commercial middleware. http://www.SafeRTOS.com - High Integrity Systems also provide a safety engineered and independently SIL3 certified version for use in safety and @@ -83,15 +87,24 @@ task.h is included from an application file. */ #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE +#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 ) + #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0 +#endif + /* Block sizes must not get too small. */ -#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( xHeapStructSize * 2 ) ) +#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( xHeapStructSize << 1 ) ) /* Assumes 8bit bytes! */ #define heapBITS_PER_BYTE ( ( size_t ) 8 ) /* Allocate the memory for the heap. */ -static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ] __attribute__ ((section (".rtos_heap"))) -__attribute__((aligned (8))); +#if( configAPPLICATION_ALLOCATED_HEAP == 1 ) + /* The application writer has already defined the array used for the RTOS + heap - probably so it can be placed in a special segment or address. */ + extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; +#else + static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; +#endif /* configAPPLICATION_ALLOCATED_HEAP */ /* Define the linked list structure. This is used to link free blocks in order of their memory address. */ @@ -121,7 +134,7 @@ static void prvHeapInit( void ); /* The size of the structure placed at the beginning of each allocated memory block must by correctly byte aligned. */ -static const size_t xHeapStructSize = ( ( sizeof( BlockLink_t ) + ( portBYTE_ALIGNMENT - 1 ) ) & ~portBYTE_ALIGNMENT_MASK ); +static const size_t xHeapStructSize = ( sizeof( BlockLink_t ) + ( ( size_t ) ( portBYTE_ALIGNMENT - 1 ) ) ) & ~( ( size_t ) portBYTE_ALIGNMENT_MASK ); /* Create a couple of list links to mark the start and end of the list. */ static BlockLink_t xStart, *pxEnd = NULL; @@ -220,7 +233,7 @@ void *pvReturn = NULL; cast is used to prevent byte alignment warnings from the compiler. */ pxNewBlockLink = ( void * ) ( ( ( uint8_t * ) pxBlock ) + xWantedSize ); - configASSERT( ( ( ( uint32_t ) pxNewBlockLink ) & portBYTE_ALIGNMENT_MASK ) == 0 ); + configASSERT( ( ( ( size_t ) pxNewBlockLink ) & portBYTE_ALIGNMENT_MASK ) == 0 ); /* Calculate the sizes of two blocks split from the single block. */ @@ -228,7 +241,7 @@ void *pvReturn = NULL; pxBlock->xBlockSize = xWantedSize; /* Insert the new block into the list of free blocks. */ - prvInsertBlockIntoFreeList( ( pxNewBlockLink ) ); + prvInsertBlockIntoFreeList( pxNewBlockLink ); } else { @@ -284,7 +297,7 @@ void *pvReturn = NULL; } #endif - configASSERT( ( ( ( uint32_t ) pvReturn ) & portBYTE_ALIGNMENT_MASK ) == 0 ); + configASSERT( ( ( ( size_t ) pvReturn ) & ( size_t ) portBYTE_ALIGNMENT_MASK ) == 0 ); return pvReturn; } /*-----------------------------------------------------------*/ @@ -359,20 +372,20 @@ static void prvHeapInit( void ) { BlockLink_t *pxFirstFreeBlock; uint8_t *pucAlignedHeap; -uint32_t ulAddress; +size_t uxAddress; size_t xTotalHeapSize = configTOTAL_HEAP_SIZE; /* Ensure the heap starts on a correctly aligned boundary. */ - ulAddress = ( uint32_t ) ucHeap; + uxAddress = ( size_t ) ucHeap; - if( ( ulAddress & portBYTE_ALIGNMENT_MASK ) != 0 ) + if( ( uxAddress & portBYTE_ALIGNMENT_MASK ) != 0 ) { - ulAddress += ( portBYTE_ALIGNMENT - 1 ); - ulAddress &= ~portBYTE_ALIGNMENT_MASK; - xTotalHeapSize -= ulAddress - ( uint32_t ) ucHeap; + uxAddress += ( portBYTE_ALIGNMENT - 1 ); + uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK ); + xTotalHeapSize -= uxAddress - ( size_t ) ucHeap; } - pucAlignedHeap = ( uint8_t * ) ulAddress; + pucAlignedHeap = ( uint8_t * ) uxAddress; /* xStart is used to hold a pointer to the first item in the list of free blocks. The void cast is used to prevent compiler warnings. */ @@ -381,17 +394,17 @@ size_t xTotalHeapSize = configTOTAL_HEAP_SIZE; /* pxEnd is used to mark the end of the list of free blocks and is inserted at the end of the heap space. */ - ulAddress = ( ( uint32_t ) pucAlignedHeap ) + xTotalHeapSize; - ulAddress -= xHeapStructSize; - ulAddress &= ~portBYTE_ALIGNMENT_MASK; - pxEnd = ( void * ) ulAddress; + uxAddress = ( ( size_t ) pucAlignedHeap ) + xTotalHeapSize; + uxAddress -= xHeapStructSize; + uxAddress &= ~( ( size_t ) portBYTE_ALIGNMENT_MASK ); + pxEnd = ( void * ) uxAddress; pxEnd->xBlockSize = 0; pxEnd->pxNextFreeBlock = NULL; /* To start with there is a single free block that is sized to take up the entire heap space, minus the space taken by pxEnd. */ pxFirstFreeBlock = ( void * ) pucAlignedHeap; - pxFirstFreeBlock->xBlockSize = ulAddress - ( uint32_t ) pxFirstFreeBlock; + pxFirstFreeBlock->xBlockSize = uxAddress - ( size_t ) pxFirstFreeBlock; pxFirstFreeBlock->pxNextFreeBlock = pxEnd; /* Only one block exists - and it covers the entire usable heap space. */ |
