807 lines
40 KiB
C
807 lines
40 KiB
C
/* ----------------------------------------------------------------------
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* $Date: 5. June 2012
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* $Revision: V1.01
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*
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* Project: CMSIS-RTOS API
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* Title: cmsis_os.h RTX header file
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*
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* Version 0.02
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* Initial Proposal Phase
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* Version 0.03
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* osKernelStart added, optional feature: main started as thread
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* osSemaphores have standard behavior
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* osTimerCreate does not start the timer, added osTimerStart
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* osThreadPass is renamed to osThreadYield
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* Version 1.01
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* Support for C++ interface
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* - const attribute removed from the osXxxxDef_t typedef's
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* - const attribute added to the osXxxxDef macros
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* Added: osTimerDelete, osMutexDelete, osSemaphoreDelete
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* Added: osKernelInitialize
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*----------------------------------------------------------------------------
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*
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* Copyright (c) 2012 ARM LIMITED
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*---------------------------------------------------------------------------*/
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/**
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\page cmsis_os_h Header File Template: cmsis_os.h
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The file \b cmsis_os.h is a template header file for a CMSIS-RTOS compliant Real-Time Operating System (RTOS).
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Each RTOS that is compliant with CMSIS-RTOS shall provide a specific \b cmsis_os.h header file that represents
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its implementation.
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The file cmsis_os.h contains:
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- CMSIS-RTOS API function definitions
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- struct definitions for parameters and return types
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- status and priority values used by CMSIS-RTOS API functions
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- macros for defining threads and other kernel objects
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<b>Name conventions and header file modifications</b>
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All definitions are prefixed with \b os to give an unique name space for CMSIS-RTOS functions.
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Definitions that are prefixed \b os_ are not used in the application code but local to this header file.
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All definitions and functions that belong to a module are grouped and have a common prefix, i.e. \b osThread.
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Definitions that are marked with <b>CAN BE CHANGED</b> can be adapted towards the needs of the actual CMSIS-RTOS implementation.
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These definitions can be specific to the underlying RTOS kernel.
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Definitions that are marked with <b>MUST REMAIN UNCHANGED</b> cannot be altered. Otherwise the CMSIS-RTOS implementation is no longer
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compliant to the standard. Note that some functions are optional and need not to be provided by every CMSIS-RTOS implementation.
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<b>Function calls from interrupt service routines</b>
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The following CMSIS-RTOS functions can be called from threads and interrupt service routines (ISR):
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- \ref osSignalSet
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- \ref osSemaphoreRelease
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- \ref osPoolAlloc, \ref osPoolCAlloc, \ref osPoolFree
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- \ref osMessagePut, \ref osMessageGet
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- \ref osMailAlloc, \ref osMailCAlloc, \ref osMailGet, \ref osMailPut, \ref osMailFree
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Functions that cannot be called from an ISR are verifying the interrupt status and return in case that they are called
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from an ISR context the status code \b osErrorISR. In some implementations this condition might be caught using the HARD FAULT vector.
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Some CMSIS-RTOS implementations support CMSIS-RTOS function calls from multiple ISR at the same time.
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If this is impossible, the CMSIS-RTOS rejects calls by nested ISR functions with the status code \b osErrorISRRecursive.
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<b>Define and reference object definitions</b>
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With <b>\#define osObjectsExternal</b> objects are defined as external symbols. This allows to create a consistent header file
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that is used throughout a project as shown below:
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<i>Header File</i>
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\code
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#include <cmsis_os.h> // CMSIS RTOS header file
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// Thread definition
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extern void thread_sample (void const *argument); // function prototype
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osThreadDef (thread_sample, osPriorityBelowNormal, 1, 100);
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// Pool definition
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osPoolDef(MyPool, 10, long);
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\endcode
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This header file defines all objects when included in a C/C++ source file. When <b>\#define osObjectsExternal</b> is
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present before the header file, the objects are defined as external symbols. A single consistent header file can therefore be
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used throughout the whole project.
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<i>Example</i>
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\code
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#include "osObjects.h" // Definition of the CMSIS-RTOS objects
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\endcode
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\code
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#define osObjectExternal // Objects will be defined as external symbols
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#include "osObjects.h" // Reference to the CMSIS-RTOS objects
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\endcode
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*/
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#ifndef _CMSIS_OS_H
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#define _CMSIS_OS_H
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/// \note MUST REMAIN UNCHANGED: \b osCMSIS identifies the CMSIS-RTOS API version.
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#define osCMSIS 0x10001 ///< API version (main [31:16] .sub [15:0])
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/// \note CAN BE CHANGED: \b osCMSIS_KERNEL identifies the underlying RTOS kernel and version number.
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#define osCMSIS_RTX ((4<<16)|61) ///< RTOS identification and version (main [31:16] .sub [15:0])
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/// \note MUST REMAIN UNCHANGED: \b osKernelSystemId shall be consistent in every CMSIS-RTOS.
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#define osKernelSystemId "RTX V4.61" ///< RTOS identification string
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#define CMSIS_OS_RTX
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#define CMSIS_OS_RTX_CA /* new define for Coretex-A */
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// The stack space occupied is mainly dependent on the underling C standard library
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#if defined(__GNUC__) || defined(__CC_ARM) || defined(__ARMCC_VERSION)
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# define WORDS_STACK_SIZE 512
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#elif defined(TOOLCHAIN_ARM_MICRO)
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# define WORDS_STACK_SIZE 128
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#endif
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#define DEFAULT_STACK_SIZE (WORDS_STACK_SIZE*4)
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/// \note MUST REMAIN UNCHANGED: \b osFeature_xxx shall be consistent in every CMSIS-RTOS.
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#define osFeature_MainThread 1 ///< main thread 1=main can be thread, 0=not available
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#define osFeature_Pool 1 ///< Memory Pools: 1=available, 0=not available
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#define osFeature_MailQ 1 ///< Mail Queues: 1=available, 0=not available
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#define osFeature_MessageQ 1 ///< Message Queues: 1=available, 0=not available
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#define osFeature_Signals 16 ///< maximum number of Signal Flags available per thread
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#define osFeature_Semaphore 65535 ///< maximum count for \ref osSemaphoreCreate function
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#define osFeature_Wait 0 ///< osWait function: 1=available, 0=not available
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#if defined (__CC_ARM)
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#define os_InRegs __value_in_regs // Compiler specific: force struct in registers
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#else
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#define os_InRegs
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#endif
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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// ==== Enumeration, structures, defines ====
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/// Priority used for thread control.
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/// \note MUST REMAIN UNCHANGED: \b osPriority shall be consistent in every CMSIS-RTOS.
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typedef enum {
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osPriorityIdle = -3, ///< priority: idle (lowest)
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osPriorityLow = -2, ///< priority: low
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osPriorityBelowNormal = -1, ///< priority: below normal
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osPriorityNormal = 0, ///< priority: normal (default)
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osPriorityAboveNormal = +1, ///< priority: above normal
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osPriorityHigh = +2, ///< priority: high
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osPriorityRealtime = +3, ///< priority: realtime (highest)
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osPriorityError = 0x84 ///< system cannot determine priority or thread has illegal priority
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} osPriority;
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/// Timeout value.
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/// \note MUST REMAIN UNCHANGED: \b osWaitForever shall be consistent in every CMSIS-RTOS.
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#define osWaitForever 0xFFFFFFFF ///< wait forever timeout value
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/// Status code values returned by CMSIS-RTOS functions.
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/// \note MUST REMAIN UNCHANGED: \b osStatus shall be consistent in every CMSIS-RTOS.
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typedef enum {
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osOK = 0, ///< function completed; no error or event occurred.
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osEventSignal = 0x08, ///< function completed; signal event occurred.
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osEventMessage = 0x10, ///< function completed; message event occurred.
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osEventMail = 0x20, ///< function completed; mail event occurred.
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osEventTimeout = 0x40, ///< function completed; timeout occurred.
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osErrorParameter = 0x80, ///< parameter error: a mandatory parameter was missing or specified an incorrect object.
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osErrorResource = 0x81, ///< resource not available: a specified resource was not available.
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osErrorTimeoutResource = 0xC1, ///< resource not available within given time: a specified resource was not available within the timeout period.
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osErrorISR = 0x82, ///< not allowed in ISR context: the function cannot be called from interrupt service routines.
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osErrorISRRecursive = 0x83, ///< function called multiple times from ISR with same object.
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osErrorPriority = 0x84, ///< system cannot determine priority or thread has illegal priority.
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osErrorNoMemory = 0x85, ///< system is out of memory: it was impossible to allocate or reserve memory for the operation.
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osErrorValue = 0x86, ///< value of a parameter is out of range.
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osErrorOS = 0xFF, ///< unspecified RTOS error: run-time error but no other error message fits.
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os_status_reserved = 0x7FFFFFFF ///< prevent from enum down-size compiler optimization.
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} osStatus;
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/// Timer type value for the timer definition.
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/// \note MUST REMAIN UNCHANGED: \b os_timer_type shall be consistent in every CMSIS-RTOS.
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typedef enum {
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osTimerOnce = 0, ///< one-shot timer
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osTimerPeriodic = 1 ///< repeating timer
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} os_timer_type;
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/// Entry point of a thread.
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/// \note MUST REMAIN UNCHANGED: \b os_pthread shall be consistent in every CMSIS-RTOS.
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typedef void (*os_pthread) (void const *argument);
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/// Entry point of a timer call back function.
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/// \note MUST REMAIN UNCHANGED: \b os_ptimer shall be consistent in every CMSIS-RTOS.
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typedef void (*os_ptimer) (void const *argument);
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// >>> the following data type definitions may shall adapted towards a specific RTOS
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/// Thread ID identifies the thread (pointer to a thread control block).
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/// \note CAN BE CHANGED: \b os_thread_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_thread_cb *osThreadId;
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/// Timer ID identifies the timer (pointer to a timer control block).
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/// \note CAN BE CHANGED: \b os_timer_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_timer_cb *osTimerId;
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/// Mutex ID identifies the mutex (pointer to a mutex control block).
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/// \note CAN BE CHANGED: \b os_mutex_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_mutex_cb *osMutexId;
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/// Semaphore ID identifies the semaphore (pointer to a semaphore control block).
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/// \note CAN BE CHANGED: \b os_semaphore_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_semaphore_cb *osSemaphoreId;
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/// Pool ID identifies the memory pool (pointer to a memory pool control block).
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/// \note CAN BE CHANGED: \b os_pool_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_pool_cb *osPoolId;
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/// Message ID identifies the message queue (pointer to a message queue control block).
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/// \note CAN BE CHANGED: \b os_messageQ_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_messageQ_cb *osMessageQId;
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/// Mail ID identifies the mail queue (pointer to a mail queue control block).
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/// \note CAN BE CHANGED: \b os_mailQ_cb is implementation specific in every CMSIS-RTOS.
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typedef struct os_mailQ_cb *osMailQId;
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/// Thread Definition structure contains startup information of a thread.
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/// \note CAN BE CHANGED: \b os_thread_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_thread_def {
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os_pthread pthread; ///< start address of thread function
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osPriority tpriority; ///< initial thread priority
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uint32_t instances; ///< maximum number of instances of that thread function
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uint32_t stacksize; ///< stack size requirements in bytes; 0 is default stack size
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#ifdef __MBED_CMSIS_RTOS_CA9
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uint32_t *stack_pointer; ///< pointer to the stack memory block
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#endif
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} osThreadDef_t;
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/// Timer Definition structure contains timer parameters.
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/// \note CAN BE CHANGED: \b os_timer_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_timer_def {
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os_ptimer ptimer; ///< start address of a timer function
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void *timer; ///< pointer to internal data
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} osTimerDef_t;
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/// Mutex Definition structure contains setup information for a mutex.
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/// \note CAN BE CHANGED: \b os_mutex_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_mutex_def {
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void *mutex; ///< pointer to internal data
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} osMutexDef_t;
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/// Semaphore Definition structure contains setup information for a semaphore.
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/// \note CAN BE CHANGED: \b os_semaphore_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_semaphore_def {
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void *semaphore; ///< pointer to internal data
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} osSemaphoreDef_t;
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/// Definition structure for memory block allocation.
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/// \note CAN BE CHANGED: \b os_pool_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_pool_def {
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uint32_t pool_sz; ///< number of items (elements) in the pool
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uint32_t item_sz; ///< size of an item
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void *pool; ///< pointer to memory for pool
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} osPoolDef_t;
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/// Definition structure for message queue.
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/// \note CAN BE CHANGED: \b os_messageQ_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_messageQ_def {
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uint32_t queue_sz; ///< number of elements in the queue
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void *pool; ///< memory array for messages
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} osMessageQDef_t;
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/// Definition structure for mail queue.
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/// \note CAN BE CHANGED: \b os_mailQ_def is implementation specific in every CMSIS-RTOS.
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typedef struct os_mailQ_def {
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uint32_t queue_sz; ///< number of elements in the queue
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uint32_t item_sz; ///< size of an item
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void *pool; ///< memory array for mail
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} osMailQDef_t;
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/// Event structure contains detailed information about an event.
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/// \note MUST REMAIN UNCHANGED: \b os_event shall be consistent in every CMSIS-RTOS.
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/// However the struct may be extended at the end.
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typedef struct {
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osStatus status; ///< status code: event or error information
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union {
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uint32_t v; ///< message as 32-bit value
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void *p; ///< message or mail as void pointer
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int32_t signals; ///< signal flags
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} value; ///< event value
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union {
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osMailQId mail_id; ///< mail id obtained by \ref osMailCreate
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osMessageQId message_id; ///< message id obtained by \ref osMessageCreate
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} def; ///< event definition
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} osEvent;
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// ==== Kernel Control Functions ====
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/// Initialize the RTOS Kernel for creating objects.
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/// \return status code that indicates the execution status of the function.
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/// \note MUST REMAIN UNCHANGED: \b osKernelInitialize shall be consistent in every CMSIS-RTOS.
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osStatus osKernelInitialize (void);
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/// Start the RTOS Kernel.
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/// \return status code that indicates the execution status of the function.
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/// \note MUST REMAIN UNCHANGED: \b osKernelStart shall be consistent in every CMSIS-RTOS.
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osStatus osKernelStart (void);
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/// Check if the RTOS kernel is already started.
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/// \note MUST REMAIN UNCHANGED: \b osKernelRunning shall be consistent in every CMSIS-RTOS.
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/// \return 0 RTOS is not started, 1 RTOS is started.
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int32_t osKernelRunning(void);
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// ==== Thread Management ====
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/// Create a Thread Definition with function, priority, and stack requirements.
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/// \param name name of the thread function.
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/// \param priority initial priority of the thread function.
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/// \param instances number of possible thread instances.
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/// \param stacksz stack size (in bytes) requirements for the thread function.
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/// \note CAN BE CHANGED: The parameters to \b osThreadDef shall be consistent but the
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/// macro body is implementation specific in every CMSIS-RTOS.
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#if defined (osObjectsExternal) // object is external
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#define osThreadDef(name, priority, instances, stacksz) \
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extern const osThreadDef_t os_thread_def_##name
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#else // define the object
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#ifdef __MBED_CMSIS_RTOS_CA9
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#define osThreadDef(name, priority, stacksz) \
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uint32_t os_thread_def_stack_##name [stacksz / sizeof(uint32_t)]; \
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const osThreadDef_t os_thread_def_##name = \
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{ (name), (priority), 1, (stacksz), (os_thread_def_stack_##name) }
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#else
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#define osThreadDef(name, priority, instances, stacksz) \
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const osThreadDef_t os_thread_def_##name = \
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{ (name), (priority), (instances), (stacksz) }
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#endif
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#endif
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/// Access a Thread definition.
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/// \param name name of the thread definition object.
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/// \note CAN BE CHANGED: The parameter to \b osThread shall be consistent but the
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/// macro body is implementation specific in every CMSIS-RTOS.
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#define osThread(name) \
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&os_thread_def_##name
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/// Create a thread and add it to Active Threads and set it to state READY.
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/// \param[in] thread_def thread definition referenced with \ref osThread.
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/// \param[in] argument pointer that is passed to the thread function as start argument.
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/// \return thread ID for reference by other functions or NULL in case of error.
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/// \note MUST REMAIN UNCHANGED: \b osThreadCreate shall be consistent in every CMSIS-RTOS.
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osThreadId osThreadCreate (const osThreadDef_t *thread_def, void *argument);
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/// Return the thread ID of the current running thread.
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/// \return thread ID for reference by other functions or NULL in case of error.
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/// \note MUST REMAIN UNCHANGED: \b osThreadGetId shall be consistent in every CMSIS-RTOS.
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osThreadId osThreadGetId (void);
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/// Terminate execution of a thread and remove it from Active Threads.
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/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
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/// \return status code that indicates the execution status of the function.
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/// \note MUST REMAIN UNCHANGED: \b osThreadTerminate shall be consistent in every CMSIS-RTOS.
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osStatus osThreadTerminate (osThreadId thread_id);
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/// Pass control to next thread that is in state \b READY.
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/// \return status code that indicates the execution status of the function.
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/// \note MUST REMAIN UNCHANGED: \b osThreadYield shall be consistent in every CMSIS-RTOS.
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osStatus osThreadYield (void);
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/// Change priority of an active thread.
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/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
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/// \param[in] priority new priority value for the thread function.
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/// \return status code that indicates the execution status of the function.
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/// \note MUST REMAIN UNCHANGED: \b osThreadSetPriority shall be consistent in every CMSIS-RTOS.
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osStatus osThreadSetPriority (osThreadId thread_id, osPriority priority);
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/// Get current priority of an active thread.
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/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
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/// \return current priority value of the thread function.
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/// \note MUST REMAIN UNCHANGED: \b osThreadGetPriority shall be consistent in every CMSIS-RTOS.
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osPriority osThreadGetPriority (osThreadId thread_id);
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#ifdef __MBED_CMSIS_RTOS_CA9
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/// Get current thread state.
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uint8_t osThreadGetState (osThreadId thread_id);
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#endif
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// ==== Generic Wait Functions ====
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/// Wait for Timeout (Time Delay).
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/// \param[in] millisec time delay value
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/// \return status code that indicates the execution status of the function.
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|
osStatus osDelay (uint32_t millisec);
|
|
|
|
#if (defined (osFeature_Wait) && (osFeature_Wait != 0)) // Generic Wait available
|
|
|
|
/// Wait for Signal, Message, Mail, or Timeout.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out
|
|
/// \return event that contains signal, message, or mail information or error code.
|
|
/// \note MUST REMAIN UNCHANGED: \b osWait shall be consistent in every CMSIS-RTOS.
|
|
os_InRegs osEvent osWait (uint32_t millisec);
|
|
|
|
#endif // Generic Wait available
|
|
|
|
|
|
// ==== Timer Management Functions ====
|
|
/// Define a Timer object.
|
|
/// \param name name of the timer object.
|
|
/// \param function name of the timer call back function.
|
|
/// \note CAN BE CHANGED: The parameter to \b osTimerDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osTimerDef(name, function) \
|
|
extern const osTimerDef_t os_timer_def_##name
|
|
#else // define the object
|
|
#define osTimerDef(name, function) \
|
|
uint32_t os_timer_cb_##name[5]; \
|
|
const osTimerDef_t os_timer_def_##name = \
|
|
{ (function), (os_timer_cb_##name) }
|
|
#endif
|
|
|
|
/// Access a Timer definition.
|
|
/// \param name name of the timer object.
|
|
/// \note CAN BE CHANGED: The parameter to \b osTimer shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osTimer(name) \
|
|
&os_timer_def_##name
|
|
|
|
/// Create a timer.
|
|
/// \param[in] timer_def timer object referenced with \ref osTimer.
|
|
/// \param[in] type osTimerOnce for one-shot or osTimerPeriodic for periodic behavior.
|
|
/// \param[in] argument argument to the timer call back function.
|
|
/// \return timer ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osTimerCreate shall be consistent in every CMSIS-RTOS.
|
|
osTimerId osTimerCreate (const osTimerDef_t *timer_def, os_timer_type type, void *argument);
|
|
|
|
/// Start or restart a timer.
|
|
/// \param[in] timer_id timer ID obtained by \ref osTimerCreate.
|
|
/// \param[in] millisec time delay value of the timer.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osTimerStart shall be consistent in every CMSIS-RTOS.
|
|
osStatus osTimerStart (osTimerId timer_id, uint32_t millisec);
|
|
|
|
/// Stop the timer.
|
|
/// \param[in] timer_id timer ID obtained by \ref osTimerCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osTimerStop shall be consistent in every CMSIS-RTOS.
|
|
osStatus osTimerStop (osTimerId timer_id);
|
|
|
|
/// Delete a timer that was created by \ref osTimerCreate.
|
|
/// \param[in] timer_id timer ID obtained by \ref osTimerCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osTimerDelete shall be consistent in every CMSIS-RTOS.
|
|
osStatus osTimerDelete (osTimerId timer_id);
|
|
|
|
|
|
// ==== Signal Management ====
|
|
|
|
/// Set the specified Signal Flags of an active thread.
|
|
/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
|
|
/// \param[in] signals specifies the signal flags of the thread that should be set.
|
|
/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSignalSet shall be consistent in every CMSIS-RTOS.
|
|
int32_t osSignalSet (osThreadId thread_id, int32_t signals);
|
|
|
|
/// Clear the specified Signal Flags of an active thread.
|
|
/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
|
|
/// \param[in] signals specifies the signal flags of the thread that shall be cleared.
|
|
/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSignalClear shall be consistent in every CMSIS-RTOS.
|
|
int32_t osSignalClear (osThreadId thread_id, int32_t signals);
|
|
|
|
/// Get Signal Flags status of an active thread.
|
|
/// \param[in] thread_id thread ID obtained by \ref osThreadCreate or \ref osThreadGetId.
|
|
/// \return previous signal flags of the specified thread or 0x80000000 in case of incorrect parameters.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSignalGet shall be consistent in every CMSIS-RTOS.
|
|
int32_t osSignalGet (osThreadId thread_id);
|
|
|
|
/// Wait for one or more Signal Flags to become signaled for the current \b RUNNING thread.
|
|
/// \param[in] signals wait until all specified signal flags set or 0 for any single signal flag.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out.
|
|
/// \return event flag information or error code.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSignalWait shall be consistent in every CMSIS-RTOS.
|
|
os_InRegs osEvent osSignalWait (int32_t signals, uint32_t millisec);
|
|
|
|
|
|
// ==== Mutex Management ====
|
|
|
|
/// Define a Mutex.
|
|
/// \param name name of the mutex object.
|
|
/// \note CAN BE CHANGED: The parameter to \b osMutexDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osMutexDef(name) \
|
|
extern const osMutexDef_t os_mutex_def_##name
|
|
#else // define the object
|
|
#define osMutexDef(name) \
|
|
uint32_t os_mutex_cb_##name[3]; \
|
|
const osMutexDef_t os_mutex_def_##name = { (os_mutex_cb_##name) }
|
|
#endif
|
|
|
|
/// Access a Mutex definition.
|
|
/// \param name name of the mutex object.
|
|
/// \note CAN BE CHANGED: The parameter to \b osMutex shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osMutex(name) \
|
|
&os_mutex_def_##name
|
|
|
|
/// Create and Initialize a Mutex object.
|
|
/// \param[in] mutex_def mutex definition referenced with \ref osMutex.
|
|
/// \return mutex ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMutexCreate shall be consistent in every CMSIS-RTOS.
|
|
osMutexId osMutexCreate (const osMutexDef_t *mutex_def);
|
|
|
|
/// Wait until a Mutex becomes available.
|
|
/// \param[in] mutex_id mutex ID obtained by \ref osMutexCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMutexWait shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMutexWait (osMutexId mutex_id, uint32_t millisec);
|
|
|
|
/// Release a Mutex that was obtained by \ref osMutexWait.
|
|
/// \param[in] mutex_id mutex ID obtained by \ref osMutexCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMutexRelease shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMutexRelease (osMutexId mutex_id);
|
|
|
|
/// Delete a Mutex that was created by \ref osMutexCreate.
|
|
/// \param[in] mutex_id mutex ID obtained by \ref osMutexCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMutexDelete shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMutexDelete (osMutexId mutex_id);
|
|
|
|
|
|
// ==== Semaphore Management Functions ====
|
|
|
|
#if (defined (osFeature_Semaphore) && (osFeature_Semaphore != 0)) // Semaphore available
|
|
|
|
/// Define a Semaphore object.
|
|
/// \param name name of the semaphore object.
|
|
/// \note CAN BE CHANGED: The parameter to \b osSemaphoreDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osSemaphoreDef(name) \
|
|
extern const osSemaphoreDef_t os_semaphore_def_##name
|
|
#else // define the object
|
|
#define osSemaphoreDef(name) \
|
|
uint32_t os_semaphore_cb_##name[2]; \
|
|
const osSemaphoreDef_t os_semaphore_def_##name = { (os_semaphore_cb_##name) }
|
|
#endif
|
|
|
|
/// Access a Semaphore definition.
|
|
/// \param name name of the semaphore object.
|
|
/// \note CAN BE CHANGED: The parameter to \b osSemaphore shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osSemaphore(name) \
|
|
&os_semaphore_def_##name
|
|
|
|
/// Create and Initialize a Semaphore object used for managing resources.
|
|
/// \param[in] semaphore_def semaphore definition referenced with \ref osSemaphore.
|
|
/// \param[in] count number of available resources.
|
|
/// \return semaphore ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSemaphoreCreate shall be consistent in every CMSIS-RTOS.
|
|
osSemaphoreId osSemaphoreCreate (const osSemaphoreDef_t *semaphore_def, int32_t count);
|
|
|
|
/// Wait until a Semaphore token becomes available.
|
|
/// \param[in] semaphore_id semaphore object referenced with \ref osSemaphoreCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out.
|
|
/// \return number of available tokens, or -1 in case of incorrect parameters.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSemaphoreWait shall be consistent in every CMSIS-RTOS.
|
|
int32_t osSemaphoreWait (osSemaphoreId semaphore_id, uint32_t millisec);
|
|
|
|
/// Release a Semaphore token.
|
|
/// \param[in] semaphore_id semaphore object referenced with \ref osSemaphoreCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSemaphoreRelease shall be consistent in every CMSIS-RTOS.
|
|
osStatus osSemaphoreRelease (osSemaphoreId semaphore_id);
|
|
|
|
/// Delete a Semaphore that was created by \ref osSemaphoreCreate.
|
|
/// \param[in] semaphore_id semaphore object referenced with \ref osSemaphoreCreate.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osSemaphoreDelete shall be consistent in every CMSIS-RTOS.
|
|
osStatus osSemaphoreDelete (osSemaphoreId semaphore_id);
|
|
|
|
#endif // Semaphore available
|
|
|
|
|
|
// ==== Memory Pool Management Functions ====
|
|
|
|
#if (defined (osFeature_Pool) && (osFeature_Pool != 0)) // Memory Pool Management available
|
|
|
|
/// \brief Define a Memory Pool.
|
|
/// \param name name of the memory pool.
|
|
/// \param no maximum number of blocks (objects) in the memory pool.
|
|
/// \param type data type of a single block (object).
|
|
/// \note CAN BE CHANGED: The parameter to \b osPoolDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osPoolDef(name, no, type) \
|
|
extern const osPoolDef_t os_pool_def_##name
|
|
#else // define the object
|
|
#define osPoolDef(name, no, type) \
|
|
uint32_t os_pool_m_##name[3+((sizeof(type)+3)/4)*(no)]; \
|
|
const osPoolDef_t os_pool_def_##name = \
|
|
{ (no), sizeof(type), (os_pool_m_##name) }
|
|
#endif
|
|
|
|
/// \brief Access a Memory Pool definition.
|
|
/// \param name name of the memory pool
|
|
/// \note CAN BE CHANGED: The parameter to \b osPool shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osPool(name) \
|
|
&os_pool_def_##name
|
|
|
|
/// Create and Initialize a memory pool.
|
|
/// \param[in] pool_def memory pool definition referenced with \ref osPool.
|
|
/// \return memory pool ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osPoolCreate shall be consistent in every CMSIS-RTOS.
|
|
osPoolId osPoolCreate (const osPoolDef_t *pool_def);
|
|
|
|
/// Allocate a memory block from a memory pool.
|
|
/// \param[in] pool_id memory pool ID obtain referenced with \ref osPoolCreate.
|
|
/// \return address of the allocated memory block or NULL in case of no memory available.
|
|
/// \note MUST REMAIN UNCHANGED: \b osPoolAlloc shall be consistent in every CMSIS-RTOS.
|
|
void *osPoolAlloc (osPoolId pool_id);
|
|
|
|
/// Allocate a memory block from a memory pool and set memory block to zero.
|
|
/// \param[in] pool_id memory pool ID obtain referenced with \ref osPoolCreate.
|
|
/// \return address of the allocated memory block or NULL in case of no memory available.
|
|
/// \note MUST REMAIN UNCHANGED: \b osPoolCAlloc shall be consistent in every CMSIS-RTOS.
|
|
void *osPoolCAlloc (osPoolId pool_id);
|
|
|
|
/// Return an allocated memory block back to a specific memory pool.
|
|
/// \param[in] pool_id memory pool ID obtain referenced with \ref osPoolCreate.
|
|
/// \param[in] block address of the allocated memory block that is returned to the memory pool.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osPoolFree shall be consistent in every CMSIS-RTOS.
|
|
osStatus osPoolFree (osPoolId pool_id, void *block);
|
|
|
|
#endif // Memory Pool Management available
|
|
|
|
|
|
// ==== Message Queue Management Functions ====
|
|
|
|
#if (defined (osFeature_MessageQ) && (osFeature_MessageQ != 0)) // Message Queues available
|
|
|
|
/// \brief Create a Message Queue Definition.
|
|
/// \param name name of the queue.
|
|
/// \param queue_sz maximum number of messages in the queue.
|
|
/// \param type data type of a single message element (for debugger).
|
|
/// \note CAN BE CHANGED: The parameter to \b osMessageQDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osMessageQDef(name, queue_sz, type) \
|
|
extern const osMessageQDef_t os_messageQ_def_##name
|
|
#else // define the object
|
|
#define osMessageQDef(name, queue_sz, type) \
|
|
uint32_t os_messageQ_q_##name[4+(queue_sz)]; \
|
|
const osMessageQDef_t os_messageQ_def_##name = \
|
|
{ (queue_sz), (os_messageQ_q_##name) }
|
|
#endif
|
|
|
|
/// \brief Access a Message Queue Definition.
|
|
/// \param name name of the queue
|
|
/// \note CAN BE CHANGED: The parameter to \b osMessageQ shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osMessageQ(name) \
|
|
&os_messageQ_def_##name
|
|
|
|
/// Create and Initialize a Message Queue.
|
|
/// \param[in] queue_def queue definition referenced with \ref osMessageQ.
|
|
/// \param[in] thread_id thread ID (obtained by \ref osThreadCreate or \ref osThreadGetId) or NULL.
|
|
/// \return message queue ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMessageCreate shall be consistent in every CMSIS-RTOS.
|
|
osMessageQId osMessageCreate (const osMessageQDef_t *queue_def, osThreadId thread_id);
|
|
|
|
/// Put a Message to a Queue.
|
|
/// \param[in] queue_id message queue ID obtained with \ref osMessageCreate.
|
|
/// \param[in] info message information.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMessagePut shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMessagePut (osMessageQId queue_id, uint32_t info, uint32_t millisec);
|
|
|
|
/// Get a Message or Wait for a Message from a Queue.
|
|
/// \param[in] queue_id message queue ID obtained with \ref osMessageCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out.
|
|
/// \return event information that includes status code.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMessageGet shall be consistent in every CMSIS-RTOS.
|
|
os_InRegs osEvent osMessageGet (osMessageQId queue_id, uint32_t millisec);
|
|
|
|
#endif // Message Queues available
|
|
|
|
|
|
// ==== Mail Queue Management Functions ====
|
|
|
|
#if (defined (osFeature_MailQ) && (osFeature_MailQ != 0)) // Mail Queues available
|
|
|
|
/// \brief Create a Mail Queue Definition.
|
|
/// \param name name of the queue
|
|
/// \param queue_sz maximum number of messages in queue
|
|
/// \param type data type of a single message element
|
|
/// \note CAN BE CHANGED: The parameter to \b osMailQDef shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#if defined (osObjectsExternal) // object is external
|
|
#define osMailQDef(name, queue_sz, type) \
|
|
extern const osMailQDef_t os_mailQ_def_##name
|
|
#else // define the object
|
|
#define osMailQDef(name, queue_sz, type) \
|
|
uint32_t os_mailQ_q_##name[4+(queue_sz)]; \
|
|
uint32_t os_mailQ_m_##name[3+((sizeof(type)+3)/4)*(queue_sz)]; \
|
|
void * os_mailQ_p_##name[2] = { (os_mailQ_q_##name), os_mailQ_m_##name }; \
|
|
const osMailQDef_t os_mailQ_def_##name = \
|
|
{ (queue_sz), sizeof(type), (os_mailQ_p_##name) }
|
|
#endif
|
|
|
|
/// \brief Access a Mail Queue Definition.
|
|
/// \param name name of the queue
|
|
/// \note CAN BE CHANGED: The parameter to \b osMailQ shall be consistent but the
|
|
/// macro body is implementation specific in every CMSIS-RTOS.
|
|
#define osMailQ(name) \
|
|
&os_mailQ_def_##name
|
|
|
|
/// Create and Initialize mail queue.
|
|
/// \param[in] queue_def reference to the mail queue definition obtain with \ref osMailQ
|
|
/// \param[in] thread_id thread ID (obtained by \ref osThreadCreate or \ref osThreadGetId) or NULL.
|
|
/// \return mail queue ID for reference by other functions or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailCreate shall be consistent in every CMSIS-RTOS.
|
|
osMailQId osMailCreate (const osMailQDef_t *queue_def, osThreadId thread_id);
|
|
|
|
/// Allocate a memory block from a mail.
|
|
/// \param[in] queue_id mail queue ID obtained with \ref osMailCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out
|
|
/// \return pointer to memory block that can be filled with mail or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailAlloc shall be consistent in every CMSIS-RTOS.
|
|
void *osMailAlloc (osMailQId queue_id, uint32_t millisec);
|
|
|
|
/// Allocate a memory block from a mail and set memory block to zero.
|
|
/// \param[in] queue_id mail queue ID obtained with \ref osMailCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out
|
|
/// \return pointer to memory block that can be filled with mail or NULL in case of error.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailCAlloc shall be consistent in every CMSIS-RTOS.
|
|
void *osMailCAlloc (osMailQId queue_id, uint32_t millisec);
|
|
|
|
/// Put a mail to a queue.
|
|
/// \param[in] queue_id mail queue ID obtained with \ref osMailCreate.
|
|
/// \param[in] mail memory block previously allocated with \ref osMailAlloc or \ref osMailCAlloc.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailPut shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMailPut (osMailQId queue_id, void *mail);
|
|
|
|
/// Get a mail from a queue.
|
|
/// \param[in] queue_id mail queue ID obtained with \ref osMailCreate.
|
|
/// \param[in] millisec timeout value or 0 in case of no time-out
|
|
/// \return event that contains mail information or error code.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailGet shall be consistent in every CMSIS-RTOS.
|
|
os_InRegs osEvent osMailGet (osMailQId queue_id, uint32_t millisec);
|
|
|
|
/// Free a memory block from a mail.
|
|
/// \param[in] queue_id mail queue ID obtained with \ref osMailCreate.
|
|
/// \param[in] mail pointer to the memory block that was obtained with \ref osMailGet.
|
|
/// \return status code that indicates the execution status of the function.
|
|
/// \note MUST REMAIN UNCHANGED: \b osMailFree shall be consistent in every CMSIS-RTOS.
|
|
osStatus osMailFree (osMailQId queue_id, void *mail);
|
|
|
|
#endif // Mail Queues available
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // _CMSIS_OS_H
|