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copy project from century 2in6 esl project
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muyuchl
185
external/freertos/portable/GCC/nrf52/port.c
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185
external/freertos/portable/GCC/nrf52/port.c
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/*
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FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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***************************************************************************
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>>! NOTE: The modification to the GPL is included to allow you to !<<
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>>! distribute a combined work that includes FreeRTOS without being !<<
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>>! obliged to provide the source code for proprietary components !<<
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>>! outside of the FreeRTOS kernel. !<<
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***************************************************************************
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. Full license text is available on the following
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link: http://www.freertos.org/a00114.html
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***************************************************************************
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* *
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* FreeRTOS provides completely free yet professionally developed, *
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* robust, strictly quality controlled, supported, and cross *
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* platform software that is more than just the market leader, it *
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* is the industry's de facto standard. *
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* *
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* Help yourself get started quickly while simultaneously helping *
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* to support the FreeRTOS project by purchasing a FreeRTOS *
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* tutorial book, reference manual, or both: *
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* http://www.FreeRTOS.org/Documentation *
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* *
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***************************************************************************
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http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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the FAQ page "My application does not run, what could be wrong?". Have you
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defined configASSERT()?
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http://www.FreeRTOS.org/support - In return for receiving this top quality
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embedded software for free we request you assist our global community by
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participating in the support forum.
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http://www.FreeRTOS.org/training - Investing in training allows your team to
|
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be as productive as possible as early as possible. Now you can receive
|
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FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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Ltd, and the world's leading authority on the world's leading RTOS.
|
||||
|
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http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
|
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including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
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http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
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Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
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|
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http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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licenses offer ticketed support, indemnification and commercial middleware.
|
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http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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engineered and independently SIL3 certified version for use in safety and
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mission critical applications that require provable dependability.
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1 tab == 4 spaces!
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*/
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/*-----------------------------------------------------------
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* Implementation of functions defined in portable.h for the ARM CM4F port.
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*----------------------------------------------------------*/
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/* Scheduler includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/*
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* Start first task is a separate function so it can be tested in isolation.
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*/
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void vPortStartFirstTask( void ) __attribute__ (( naked ));
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/*
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* Exception handlers.
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*/
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void vPortSVCHandler( void ) __attribute__ (( naked ));
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void xPortPendSVHandler( void ) __attribute__ (( naked ));
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/*-----------------------------------------------------------*/
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void vPortStartFirstTask( void )
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{
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__asm volatile(
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" ldr r0, =__isr_vector \n" /* Locate the stack using __isr_vector table. */
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" ldr r0, [r0] \n"
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" msr msp, r0 \n" /* Set the msp back to the start of the stack. */
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" cpsie i \n" /* Globally enable interrupts. */
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" cpsie f \n"
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" dsb \n"
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" isb \n"
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#ifdef SOFTDEVICE_PRESENT
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/* Block kernel interrupts only (PendSV) before calling SVC */
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" mov r0, %0 \n"
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" msr basepri, r0 \n"
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#endif
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" svc 0 \n" /* System call to start first task. */
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" \n"
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" .align 2 \n"
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#ifdef SOFTDEVICE_PRESENT
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::"i"(configKERNEL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS))
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#endif
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);
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}
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/*-----------------------------------------------------------*/
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void vPortSVCHandler( void )
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{
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__asm volatile (
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" ldr r3, =pxCurrentTCB \n" /* Restore the context. */
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" ldr r1, [r3] \n" /* Use pxCurrentTCBConst to get the pxCurrentTCB address. */
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" ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. */
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" ldmia r0!, {r4-r11, r14} \n" /* Pop the registers that are not automatically saved on exception entry and the critical nesting count. */
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" msr psp, r0 \n" /* Restore the task stack pointer. */
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" isb \n"
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" mov r0, #0 \n"
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" msr basepri, r0 \n"
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" bx r14 \n"
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" \n"
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" .align 2 \n"
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);
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}
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/*-----------------------------------------------------------*/
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void xPortPendSVHandler( void )
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{
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/* This is a naked function. */
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__asm volatile
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(
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" mrs r0, psp \n"
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" isb \n"
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" \n"
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" ldr r3, =pxCurrentTCB \n" /* Get the location of the current TCB. */
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" ldr r2, [r3] \n"
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" \n"
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" tst r14, #0x10 \n" /* Is the task using the FPU context? If so, push high vfp registers. */
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" it eq \n"
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" vstmdbeq r0!, {s16-s31} \n"
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" \n"
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" stmdb r0!, {r4-r11, r14} \n" /* Save the core registers. */
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" \n"
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" str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
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" \n"
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" stmdb sp!, {r3} \n"
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" mov r0, %0 \n"
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" msr basepri, r0 \n"
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" dsb \n"
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" isb \n"
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" bl vTaskSwitchContext \n"
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" mov r0, #0 \n"
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" msr basepri, r0 \n"
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" ldmia sp!, {r3} \n"
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" \n"
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" ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. */
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" ldr r0, [r1] \n"
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" \n"
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" ldmia r0!, {r4-r11, r14} \n" /* Pop the core registers. */
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" \n"
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" tst r14, #0x10 \n" /* Is the task using the FPU context? If so, pop the high vfp registers too. */
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" it eq \n"
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" vldmiaeq r0!, {s16-s31} \n"
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" \n"
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" msr psp, r0 \n"
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" isb \n"
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" \n"
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" \n"
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" bx r14 \n"
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" \n"
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" .align 2 \n"
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::"i"(configMAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS))
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);
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}
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77
external/freertos/portable/GCC/nrf52/portmacro.h
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77
external/freertos/portable/GCC/nrf52/portmacro.h
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@@ -0,0 +1,77 @@
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/*
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FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
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All rights reserved
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VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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This file is part of the FreeRTOS distribution.
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|
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
|
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Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
|
||||
|
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***************************************************************************
|
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>>! NOTE: The modification to the GPL is included to allow you to !<<
|
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>>! distribute a combined work that includes FreeRTOS without being !<<
|
||||
>>! obliged to provide the source code for proprietary components !<<
|
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>>! outside of the FreeRTOS kernel. !<<
|
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***************************************************************************
|
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|
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
|
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
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FOR A PARTICULAR PURPOSE. Full license text is available on the following
|
||||
link: http://www.freertos.org/a00114.html
|
||||
|
||||
***************************************************************************
|
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* *
|
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* FreeRTOS provides completely free yet professionally developed, *
|
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* robust, strictly quality controlled, supported, and cross *
|
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* platform software that is more than just the market leader, it *
|
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* is the industry's de facto standard. *
|
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* *
|
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* Help yourself get started quickly while simultaneously helping *
|
||||
* to support the FreeRTOS project by purchasing a FreeRTOS *
|
||||
* tutorial book, reference manual, or both: *
|
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* http://www.FreeRTOS.org/Documentation *
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* *
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***************************************************************************
|
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|
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http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
|
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the FAQ page "My application does not run, what could be wrong?". Have you
|
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defined configASSERT()?
|
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|
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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,
|
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including FreeRTOS+Trace - an indispensable productivity tool, a DOS
|
||||
compatible FAT file system, and our tiny thread aware UDP/IP stack.
|
||||
|
||||
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
|
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Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
|
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|
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http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
|
||||
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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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
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mission critical applications that require provable dependability.
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1 tab == 4 spaces!
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||||
*/
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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#include "portmacro_cmsis.h"
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#endif /* PORTMACRO_H */
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Reference in New Issue
Block a user