+++ /dev/null
-/*
- FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.
-
-
- FreeRTOS supports many tools and architectures. V7.0.0 is sponsored by:
- Atollic AB - Atollic provides professional embedded systems development
- tools for C/C++ development, code analysis and test automation.
- See http://www.atollic.com
-
-
- ***************************************************************************
- * *
- * 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.
-*/
-
-/*----------------------------------------------------------------------------*/
-/* Include Files */
-
-#include "os/FreeRTOS.h"
-#include "os/task.h"
-#include "sys/sys.h"
-
-/*----------------------------------------------------------------------------*/
-/* Global Vaiables */
-
-unsigned portLONG ulCriticalNesting = 9999;
-
-/*----------------------------------------------------------------------------*/
-/* Macros */
-
-#define portINITIAL_SPSR ((portSTACK_TYPE) 0x1F)
-#define portINITIAL_FPSCR ((portSTACK_TYPE) 0x00)
-#define portINSTRUCTION_SIZE ((portSTACK_TYPE) 0x04)
-#define portNO_CRITICAL_SECTION_NESTING ((portSTACK_TYPE) 0x00)
-#define portTHUMB_MODE_BIT ((portSTACK_TYPE) 0x20)
-
-/*----------------------------------------------------------------------------*/
-/* pxPortInitialiseStack */
-
-portSTACK_TYPE * pxPortInitialiseStack(portSTACK_TYPE *pxTopOfStack, pdTASK_CODE pxCode, void *pvParameters)
-{
- portSTACK_TYPE *pxOriginalTOS = pxTopOfStack;
-
- *pxTopOfStack-- = (portSTACK_TYPE) pxCode + portINSTRUCTION_SIZE;
- *pxTopOfStack-- = (portSTACK_TYPE) 0xaaaaaaaa;
- *pxTopOfStack-- = (portSTACK_TYPE) pxOriginalTOS;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x12121212;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x11111111;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x10101010;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x09090909;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x08080808;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x07070707;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x06060606;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x05050505;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x04040404;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x03030303;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x02020202;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x01010101;
- *pxTopOfStack-- = (portSTACK_TYPE) pvParameters;
-
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3F3F3F3F;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3E3E3E3E;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3D3D3D3D;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3C3C3C3C;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3B3B3B3B;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x3A3A3A3A;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x39393939;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x38383838;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x37373737;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x36363636;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x35353535;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x34343434;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x33333333;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x32323232;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x31313131;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x30303030;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2F2F2F2F;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2E2E2E2E;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2D2D2D2D;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2C2C2C2C;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2B2B2B2B;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x2A2A2A2A;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x29292929;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x28282828;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x27272727;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x26262626;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x25252525;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x24242424;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x23232323;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x22222222;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x21212121;
- *pxTopOfStack-- = (portSTACK_TYPE) 0x20202020;
- *pxTopOfStack-- = (portSTACK_TYPE) portINITIAL_FPSCR;
-
- *pxTopOfStack = (portSTACK_TYPE) ((_getCPSRValue_() & ~0xFF) | portINITIAL_SPSR);
-
- if (((unsigned long) pxCode & 0x01UL) != 0x00)
- {
- *pxTopOfStack |= portTHUMB_MODE_BIT;
- }
-
- pxTopOfStack--;
-
- *pxTopOfStack = portNO_CRITICAL_SECTION_NESTING;
-
- return pxTopOfStack;
-}
-
-
-/*----------------------------------------------------------------------------*/
-/* prvSetupTimerInterrupt */
-
-static void prvSetupTimerInterrupt(void)
-{
-#if (configGENERATE_RUN_TIME_STATS == 1)
- RTI->GCTRL &= ~0x00000001U;
-#else
- RTI->GCTRL = 0x00000000U;
-#endif
- RTI->TBCTRL = 0x00000000U;
- RTI->COMPCTRL = 0x00000000U;
- RTI->CNT[0U].UCx = 0x00000000U;
- RTI->CNT[0U].FRCx = 0x00000000U;
- RTI->CNT[0U].CPUCx = 0x00000001U;
- RTI->CMP[0U].COMPx = configCPU_CLOCK_HZ / 2 / configTICK_RATE_HZ;
- RTI->CMP[0U].UDCPx = configCPU_CLOCK_HZ / 2 / configTICK_RATE_HZ;
- RTI->INTFLAG = 0x0007000FU;
- RTI->CLEARINT = 0x00070F0FU;
- RTI->SETINT = 0x00000001U;
- RTI->GCTRL |= 0x00000001U;
-}
-
-
-/*----------------------------------------------------------------------------*/
-/* vPortStartFirstTask */
-
-/* vPortStartFirstSTask() is defined in portASM.asm */
-extern void vPortStartFirstTask(void);
-
-
-/*----------------------------------------------------------------------------*/
-/* xPortStartScheduler */
-
-portBASE_TYPE xPortStartScheduler(void)
-{
- /* Start the timer that generates the tick ISR. */
- prvSetupTimerInterrupt();
- /* Start the first task. This is done from portASM.asm as ARM mode must be
- used. */
- vPortStartFirstTask();
- /* Should not get here! */
- return 0;
-}
-
-
-/*----------------------------------------------------------------------------*/
-/* vPortEndScheduler */
-
-void vPortEndScheduler(void)
-{
- /* It is unlikely that the ARM port will require this function as there
- is nothing to return to. If this is required - stop the tick ISR then
- return back to main. */
-}
-
-
-/*----------------------------------------------------------------------------*/
-/* vNonPreemptiveTick / vPreemptiveTick */
-
-#if configUSE_PREEMPTION == 0
-
- /* The cooperative scheduler requires a normal IRQ service routine to
- * simply increment the system tick. */
- __interrupt void vNonPreemptiveTick( void )
- {
- /* clear clock interrupt flag */
- RTI->INTFLAG = 0x00000001;
-
- /* Increment the tick count - this may make a delaying task ready
- to run - but a context switch is not performed. */
- vTaskIncrementTick();
- }
-
- #else
-
- /*
- **************************************************************************
- * The preemptive scheduler ISR is written in assembler and can be found
- * in the portASM.asm file. This will only get used if portUSE_PREEMPTION
- * is set to 1 in portmacro.h
- **************************************************************************
- */
- void vPreemptiveTick(void);
-
-#endif
-
-
-
-/*----------------------------------------------------------------------------*/
-/* vPortEnterCritical */
-
-void vPortEnterCritical(void)
-{
- /* Disable interrupts as per portDISABLE_INTERRUPTS(); */
- portDISABLE_INTERRUPTS();
- /* 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++;
-}
-
-
-/*----------------------------------------------------------------------------*/
-/* vPortExitCritical */
-
-void vPortExitCritical(void)
-{
- if(ulCriticalNesting > 0)
- {
- /* 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 == 0)
- {
- /* Enable interrupts as per portENABLE_INTERRUPTS(). */
- portENABLE_INTERRUPTS();
- }
- }
-}
-
-/*----------------------------------------------------------------------------*/
projects / pes-rpp / rpp-lib.git / blobdiff