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Update TaskNotify.c to test the condition where a direct to task notification is sent to a suspended task.
Introduce configSTACK_DEPTH_TYPE so the application writer change the type used to specify a stack size from uint16_t to whatever they like. Defaults to uint16_t if not defined. Introduce configINITIAL_TICK_COUNT to allow users to start the tick count at something other than 0. Used for testing, but overflows can be better tested by setting configUSE_16_BIT_TICKS to 1. Split xQueueGenericReceive() into xQueueReceive(), xQueuePeek() and xQueueSemaphoreTake() as the first step in refactoring xQueueGenericReceive(). Add Cortex-M3 port layer for Code Composer Studio - previously there was only a Cortex-M4F port. Introduce configPRE_SUPPRESS_TICKS_AND_SLEEP_PROCESSING() to allow applications to prevent portSUPPRESS_TICKS_AND_SLEEP() being called. Previously the portPRE_SLEEP_PROCESSING() macro could only be used to abort entry into sleep time after clocks had been re-programmed for the distant wake time.
This commit is contained in:
Richard Barry
parent
7fcc976248
commit
225f13bac2
14 changed files with 1597 additions and 224 deletions
186
FreeRTOS/Source/portable/CCS/ARM_CM3/portasm.asm
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186
FreeRTOS/Source/portable/CCS/ARM_CM3/portasm.asm
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;/*
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; FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd.
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; All rights reserved
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;
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; VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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;
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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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; ***************************************************************************
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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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;
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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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; http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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;
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; 1 tab == 4 spaces!
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;*/
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.thumb
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.ref pxCurrentTCB
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.ref vTaskSwitchContext
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.ref ulMaxSyscallInterruptPriority
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.def xPortPendSVHandler
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.def ulPortGetIPSR
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.def vPortSVCHandler
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.def vPortStartFirstTask
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NVICOffsetConst: .word 0xE000ED08
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CPACRConst: .word 0xE000ED88
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pxCurrentTCBConst: .word pxCurrentTCB
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ulMaxSyscallInterruptPriorityConst: .word ulMaxSyscallInterruptPriority
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; -----------------------------------------------------------
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.align 4
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ulPortGetIPSR: .asmfunc
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mrs r0, ipsr
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bx r14
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.endasmfunc
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; -----------------------------------------------------------
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.align 4
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vPortSetInterruptMask: .asmfunc
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push {r0}
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ldr r0, ulMaxSyscallInterruptPriorityConst
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msr basepri, r0
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pop {r0}
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bx r14
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.endasmfunc
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; -----------------------------------------------------------
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.align 4
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xPortPendSVHandler: .asmfunc
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mrs r0, psp
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isb
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;/* Get the location of the current TCB. */
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ldr r3, pxCurrentTCBConst
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ldr r2, [r3]
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;/* Save the core registers. */
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stmdb r0!, {r4-r11}
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;/* Save the new top of stack into the first member of the TCB. */
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str r0, [r2]
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stmdb sp!, {r3, r14}
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ldr r0, ulMaxSyscallInterruptPriorityConst
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ldr r1, [r0]
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msr basepri, r1
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dsb
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isb
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bl vTaskSwitchContext
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mov r0, #0
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msr basepri, r0
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ldmia sp!, {r3, r14}
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;/* The first item in pxCurrentTCB is the task top of stack. */
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ldr r1, [r3]
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ldr r0, [r1]
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;/* Pop the core registers. */
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ldmia r0!, {r4-r11}
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msr psp, r0
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isb
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bx r14
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.endasmfunc
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; -----------------------------------------------------------
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.align 4
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vPortSVCHandler: .asmfunc
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;/* Get the location of the current TCB. */
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ldr r3, pxCurrentTCBConst
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ldr r1, [r3]
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ldr r0, [r1]
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;/* Pop the core registers. */
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ldmia r0!, {r4-r11}
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msr psp, r0
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isb
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mov r0, #0
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msr basepri, r0
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orr r14, #0xd
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bx r14
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.endasmfunc
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; -----------------------------------------------------------
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.align 4
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vPortStartFirstTask: .asmfunc
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;/* Use the NVIC offset register to locate the stack. */
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ldr r0, NVICOffsetConst
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ldr r0, [r0]
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ldr r0, [r0]
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;/* Set the msp back to the start of the stack. */
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msr msp, r0
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;/* Clear the bit that indicates the FPU is in use in case the FPU was used
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;before the scheduler was started - which would otherwise result in the
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;unnecessary leaving of space in the SVC stack for lazy saving of FPU
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;registers. */
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mov r0, #0
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msr control, r0
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;/* Call SVC to start the first task. */
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cpsie i
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cpsie f
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dsb
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isb
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svc #0
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.endasmfunc
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; -----------------------------------------------------------
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