X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FSource%2Fportable%2FGCC%2FMicroBlaze%2Fport.c;h=0ca17dd47162d336b06bca9270941a1045640d00;hb=refs%2Ftags%2FV9.0.0rc2;hp=732637746cc669aabd317c0fda32874df32dafd5;hpb=19b29b9ac426c6f5c64009809b1cde1777abb285;p=freertos diff --git a/FreeRTOS/Source/portable/GCC/MicroBlaze/port.c b/FreeRTOS/Source/portable/GCC/MicroBlaze/port.c index 732637746..0ca17dd47 100644 --- a/FreeRTOS/Source/portable/GCC/MicroBlaze/port.c +++ b/FreeRTOS/Source/portable/GCC/MicroBlaze/port.c @@ -1,60 +1,64 @@ /* - FreeRTOS V8.0.0 - Copyright (C) 2014 Real Time Engineers Ltd. + FreeRTOS V9.0.0rc2 - 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. + *************************************************************************** + >>! 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 @@ -80,6 +84,10 @@ #include #include +#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 ) + #error configSUPPORT_DYNAMIC_ALLOCATION must be set to 1 to use this port. +#endif + /* Tasks are started with interrupts enabled. */ #define portINITIAL_MSR_STATE ( ( StackType_t ) 0x02 ) @@ -95,7 +103,7 @@ to reach zero, so it is initialised to a high value. */ debugging. */ #define portISR_STACK_FILL_VALUE 0x55555555 -/* Counts the nesting depth of calls to portENTER_CRITICAL(). Each task +/* Counts the nesting depth of calls to portENTER_CRITICAL(). Each task maintains it's own count, so this variable is saved as part of the task context. */ volatile UBaseType_t uxCriticalNesting = portINITIAL_NESTING_VALUE; @@ -113,10 +121,10 @@ uint32_t *pulISRStack; static void prvSetupTimerInterrupt( void ); /*-----------------------------------------------------------*/ -/* - * Initialise the stack of a task to look exactly as if a call to +/* + * Initialise the stack of a task to look exactly as if a call to * portSAVE_CONTEXT had been made. - * + * * See the header file portable.h. */ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters ) @@ -125,16 +133,16 @@ extern void *_SDA2_BASE_, *_SDA_BASE_; const uint32_t ulR2 = ( uint32_t ) &_SDA2_BASE_; const uint32_t ulR13 = ( uint32_t ) &_SDA_BASE_; - /* Place a few bytes of known values on the bottom of the stack. + /* Place a few bytes of known values on the bottom of the stack. This is essential for the Microblaze port and these lines must - not be omitted. The parameter value will overwrite the + not be omitted. The parameter value will overwrite the 0x22222222 value during the function prologue. */ *pxTopOfStack = ( StackType_t ) 0x11111111; pxTopOfStack--; *pxTopOfStack = ( StackType_t ) 0x22222222; pxTopOfStack--; *pxTopOfStack = ( StackType_t ) 0x33333333; - pxTopOfStack--; + pxTopOfStack--; /* First stack an initial value for the critical section nesting. This is initialised to zero as tasks are started with interrupts enabled. */ @@ -257,7 +265,7 @@ void vPortEndScheduler( void ) /*-----------------------------------------------------------*/ /* - * Manual context switch called by portYIELD or taskYIELD. + * Manual context switch called by portYIELD or taskYIELD. */ void vPortYield( void ) { @@ -276,7 +284,7 @@ extern void VPortYieldASM( void ); /*-----------------------------------------------------------*/ /* - * Hardware initialisation to generate the RTOS tick. + * Hardware initialisation to generate the RTOS tick. */ static void prvSetupTimerInterrupt( void ) { @@ -291,12 +299,12 @@ UBaseType_t uxMask; XTmrCtr_mSetLoadReg( XPAR_OPB_TIMER_1_BASEADDR, portCOUNTER_0, ulCounterValue ); XTmrCtr_mSetControlStatusReg( XPAR_OPB_TIMER_1_BASEADDR, portCOUNTER_0, XTC_CSR_LOAD_MASK | XTC_CSR_INT_OCCURED_MASK ); - /* Set the timer interrupt enable bit while maintaining the other bit + /* Set the timer interrupt enable bit while maintaining the other bit states. */ uxMask = XIntc_In32( ( XPAR_OPB_INTC_0_BASEADDR + XIN_IER_OFFSET ) ); uxMask |= XPAR_OPB_TIMER_1_INTERRUPT_MASK; - XIntc_Out32( ( XPAR_OPB_INTC_0_BASEADDR + XIN_IER_OFFSET ), ( uxMask ) ); - + XIntc_Out32( ( XPAR_OPB_INTC_0_BASEADDR + XIN_IER_OFFSET ), ( uxMask ) ); + XTmrCtr_Start( &xTimer, XPAR_OPB_TIMER_1_DEVICE_ID ); XTmrCtr_mSetControlStatusReg(XPAR_OPB_TIMER_1_BASEADDR, portCOUNTER_0, XTC_CSR_ENABLE_TMR_MASK | XTC_CSR_ENABLE_INT_MASK | XTC_CSR_AUTO_RELOAD_MASK | XTC_CSR_DOWN_COUNT_MASK | XTC_CSR_INT_OCCURED_MASK ); XIntc_mAckIntr( XPAR_INTC_SINGLE_BASEADDR, 1 ); @@ -306,12 +314,12 @@ UBaseType_t uxMask; /* * The interrupt handler placed in the interrupt vector when the scheduler is * started. The task context has already been saved when this is called. - * This handler determines the interrupt source and calls the relevant + * This handler determines the interrupt source and calls the relevant * peripheral handler. */ void vTaskISRHandler( void ) { -static uint32_t ulPending; +static uint32_t ulPending; /* Which interrupts are pending? */ ulPending = XIntc_In32( ( XPAR_INTC_SINGLE_BASEADDR + XIN_IVR_OFFSET ) ); @@ -342,7 +350,7 @@ static uint32_t ulPending; } /*-----------------------------------------------------------*/ -/* +/* * Handler for the timer interrupt. */ void vTickISR( void *pvBaseAddress ) @@ -356,7 +364,7 @@ uint32_t ulCSR; } /* Clear the timer interrupt */ - ulCSR = XTmrCtr_mGetControlStatusReg(XPAR_OPB_TIMER_1_BASEADDR, 0); + ulCSR = XTmrCtr_mGetControlStatusReg(XPAR_OPB_TIMER_1_BASEADDR, 0); XTmrCtr_mSetControlStatusReg( XPAR_OPB_TIMER_1_BASEADDR, portCOUNTER_0, ulCSR ); } /*-----------------------------------------------------------*/