698 lines
25 KiB
C
Executable File
698 lines
25 KiB
C
Executable File
/*
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* OS Abstraction Layer Extension - the APIs defined by the "extension" API
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* are only supported by a subset of all operating systems.
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*
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* Copyright (C) 1999-2016, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: osl_ext.h 514727 2014-11-12 03:02:48Z $
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*/
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#ifndef _osl_ext_h_
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#define _osl_ext_h_
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/* ---- Include Files ---------------------------------------------------- */
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#if defined(TARGETOS_symbian)
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#include <e32def.h>
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#include <symbian_osl_ext.h>
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#elif defined(THREADX)
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#include <threadx_osl_ext.h>
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#else
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#define OSL_EXT_DISABLED
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#endif
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/* Include base operating system abstraction. */
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#include <osl.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ---- Constants and Types ---------------------------------------------- */
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/* -----------------------------------------------------------------------
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* Generic OS types.
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*/
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typedef enum osl_ext_status_t
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{
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OSL_EXT_SUCCESS,
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OSL_EXT_ERROR,
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OSL_EXT_TIMEOUT
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} osl_ext_status_t;
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#define OSL_EXT_STATUS_DECL(status) osl_ext_status_t status;
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#define OSL_EXT_TIME_FOREVER ((osl_ext_time_ms_t)(-1))
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typedef unsigned int osl_ext_time_ms_t;
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typedef unsigned int osl_ext_event_bits_t;
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typedef unsigned int osl_ext_interrupt_state_t;
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/* -----------------------------------------------------------------------
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* Timers.
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*/
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typedef enum
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{
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/* One-shot timer. */
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OSL_EXT_TIMER_MODE_ONCE,
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/* Periodic timer. */
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OSL_EXT_TIMER_MODE_REPEAT
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} osl_ext_timer_mode_t;
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/* User registered callback and parameter to invoke when timer expires. */
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typedef void* osl_ext_timer_arg_t;
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typedef void (*osl_ext_timer_callback)(osl_ext_timer_arg_t arg);
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/* -----------------------------------------------------------------------
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* Tasks.
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*/
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/* Task entry argument. */
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typedef void* osl_ext_task_arg_t;
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/* Task entry function. */
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typedef void (*osl_ext_task_entry)(osl_ext_task_arg_t arg);
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/* Abstract task priority levels. */
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typedef enum
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{
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OSL_EXT_TASK_IDLE_PRIORITY,
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OSL_EXT_TASK_LOW_PRIORITY,
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OSL_EXT_TASK_LOW_NORMAL_PRIORITY,
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OSL_EXT_TASK_NORMAL_PRIORITY,
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OSL_EXT_TASK_HIGH_NORMAL_PRIORITY,
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OSL_EXT_TASK_HIGHEST_PRIORITY,
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OSL_EXT_TASK_TIME_CRITICAL_PRIORITY,
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/* This must be last. */
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OSL_EXT_TASK_NUM_PRIORITES
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} osl_ext_task_priority_t;
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#ifndef OSL_EXT_DISABLED
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/* ---- Variable Externs ------------------------------------------------- */
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/* ---- Function Prototypes ---------------------------------------------- */
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/* --------------------------------------------------------------------------
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** Semaphore
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*/
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/****************************************************************************
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* Function: osl_ext_sem_create
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*
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* Purpose: Creates a counting semaphore object, which can subsequently be
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* used for thread notification.
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*
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* Parameters: name (in) Name to assign to the semaphore (must be unique).
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* init_cnt (in) Initial count that the semaphore should have.
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* sem (out) Newly created semaphore.
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*
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* Returns: OSL_EXT_SUCCESS if the semaphore was created successfully, or an
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* error code if the semaphore could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_sem_create(char *name, int init_cnt, osl_ext_sem_t *sem);
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/****************************************************************************
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* Function: osl_ext_sem_delete
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*
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* Purpose: Destroys a previously created semaphore object.
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*
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* Parameters: sem (mod) Semaphore object to destroy.
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*
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* Returns: OSL_EXT_SUCCESS if the semaphore was deleted successfully, or an
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* error code if the semaphore could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_sem_delete(osl_ext_sem_t *sem);
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/****************************************************************************
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* Function: osl_ext_sem_give
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*
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* Purpose: Increments the count associated with the semaphore. This will
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* cause one thread blocked on a take to wake up.
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*
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* Parameters: sem (mod) Semaphore object to give.
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*
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* Returns: OSL_EXT_SUCCESS if the semaphore was given successfully, or an
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* error code if the semaphore could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_sem_give(osl_ext_sem_t *sem);
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/****************************************************************************
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* Function: osl_ext_sem_take
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*
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* Purpose: Decrements the count associated with the semaphore. If the count
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* is less than zero, then the calling task will become blocked until
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* another thread does a give on the semaphore. This function will only
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* block the calling thread for timeout_msec milliseconds, before
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* returning with OSL_EXT_TIMEOUT.
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*
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* Parameters: sem (mod) Semaphore object to take.
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* timeout_msec (in) Number of milliseconds to wait for the
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* semaphore to enter a state where it can be
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* taken.
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*
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* Returns: OSL_EXT_SUCCESS if the semaphore was taken successfully, or an
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* error code if the semaphore could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_sem_take(osl_ext_sem_t *sem, osl_ext_time_ms_t timeout_msec);
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/* --------------------------------------------------------------------------
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** Mutex
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*/
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/****************************************************************************
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* Function: osl_ext_mutex_create
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*
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* Purpose: Creates a mutex object, which can subsequently be used to control
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* mutually exclusion of resources.
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*
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* Parameters: name (in) Name to assign to the mutex (must be unique).
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* mutex (out) Mutex object to initialize.
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*
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* Returns: OSL_EXT_SUCCESS if the mutex was created successfully, or an
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* error code if the mutex could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_mutex_create(char *name, osl_ext_mutex_t *mutex);
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/****************************************************************************
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* Function: osl_ext_mutex_delete
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*
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* Purpose: Destroys a previously created mutex object.
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*
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* Parameters: mutex (mod) Mutex object to destroy.
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*
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* Returns: OSL_EXT_SUCCESS if the mutex was deleted successfully, or an
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* error code if the mutex could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_mutex_delete(osl_ext_mutex_t *mutex);
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/****************************************************************************
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* Function: osl_ext_mutex_acquire
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*
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* Purpose: Acquires the indicated mutual exclusion object. If the object is
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* currently acquired by another task, then this function will wait
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* for timeout_msec milli-seconds before returning with OSL_EXT_TIMEOUT.
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*
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* Parameters: mutex (mod) Mutex object to acquire.
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* timeout_msec (in) Number of milliseconds to wait for the mutex.
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*
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* Returns: OSL_EXT_SUCCESS if the mutex was acquired successfully, or an
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* error code if the mutex could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_mutex_acquire(osl_ext_mutex_t *mutex, osl_ext_time_ms_t timeout_msec);
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/****************************************************************************
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* Function: osl_ext_mutex_release
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*
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* Purpose: Releases the indicated mutual exclusion object. This makes it
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* available for another task to acquire.
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*
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* Parameters: mutex (mod) Mutex object to release.
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*
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* Returns: OSL_EXT_SUCCESS if the mutex was released successfully, or an
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* error code if the mutex could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_mutex_release(osl_ext_mutex_t *mutex);
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/* --------------------------------------------------------------------------
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** Timers
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*/
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/****************************************************************************
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* Function: osl_ext_timer_create
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*
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* Purpose: Creates a timer object.
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*
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* Parameters: name (in) Name of timer.
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* timeout_msec (in) Invoke callback after this number of milliseconds.
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* mode (in) One-shot or periodic timer.
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* func (in) Callback function to invoke on timer expiry.
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* arg (in) Argument to callback function.
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* timer (out) Timer object to create.
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*
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* Note: The function callback occurs in interrupt context. The application is
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* required to provide context switch for the callback if required.
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*
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* Returns: OSL_EXT_SUCCESS if the timer was created successfully, or an
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* error code if the timer could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t
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osl_ext_timer_create(char *name, osl_ext_time_ms_t timeout_msec, osl_ext_timer_mode_t mode,
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osl_ext_timer_callback func, osl_ext_timer_arg_t arg, osl_ext_timer_t *timer);
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/****************************************************************************
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* Function: osl_ext_timer_delete
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*
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* Purpose: Destroys a previously created timer object.
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*
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* Parameters: timer (mod) Timer object to destroy.
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*
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* Returns: OSL_EXT_SUCCESS if the timer was created successfully, or an
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* error code if the timer could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_timer_delete(osl_ext_timer_t *timer);
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/****************************************************************************
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* Function: osl_ext_timer_start
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*
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* Purpose: Start a previously created timer object.
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*
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* Parameters: timer (in) Timer object.
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* timeout_msec (in) Invoke callback after this number of milliseconds.
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* mode (in) One-shot or periodic timer.
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*
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* Returns: OSL_EXT_SUCCESS if the timer was created successfully, or an
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* error code if the timer could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t
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osl_ext_timer_start(osl_ext_timer_t *timer,
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osl_ext_time_ms_t timeout_msec, osl_ext_timer_mode_t mode);
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/****************************************************************************
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* Function: osl_ext_timer_stop
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*
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* Purpose: Stop a previously created timer object.
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*
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* Parameters: timer (in) Timer object.
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*
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* Returns: OSL_EXT_SUCCESS if the timer was created successfully, or an
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* error code if the timer could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t
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osl_ext_timer_stop(osl_ext_timer_t *timer);
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/****************************************************************************
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* Function: osl_ext_time_get
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*
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* Purpose: Returns incrementing time counter.
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*
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* Parameters: None.
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*
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* Returns: Returns incrementing time counter in msec.
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*****************************************************************************
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*/
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osl_ext_time_ms_t osl_ext_time_get(void);
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/* --------------------------------------------------------------------------
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** Tasks
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*/
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/****************************************************************************
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* Function: osl_ext_task_create
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*
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* Purpose: Create a task.
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*
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* Parameters: name (in) Pointer to task string descriptor.
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* stack (in) Pointer to stack. NULL to allocate.
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* stack_size (in) Stack size - in bytes.
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* priority (in) Abstract task priority.
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* func (in) A pointer to the task entry point function.
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* arg (in) Value passed into task entry point function.
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* task (out) Task to create.
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*
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* Returns: OSL_EXT_SUCCESS if the task was created successfully, or an
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* error code if the task could not be created.
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*****************************************************************************
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*/
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#define osl_ext_task_create(name, stack, stack_size, priority, func, arg, task) \
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osl_ext_task_create_ex((name), (stack), (stack_size), (priority), 0, (func), \
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(arg), (task))
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osl_ext_status_t osl_ext_task_create_ex(char* name,
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void *stack, unsigned int stack_size, osl_ext_task_priority_t priority,
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osl_ext_time_ms_t timslice_msec, osl_ext_task_entry func, osl_ext_task_arg_t arg,
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osl_ext_task_t *task);
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/****************************************************************************
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* Function: osl_ext_task_delete
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*
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* Purpose: Destroy a task.
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*
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* Parameters: task (mod) Task to destroy.
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*
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* Returns: OSL_EXT_SUCCESS if the task was created successfully, or an
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* error code if the task could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_task_delete(osl_ext_task_t *task);
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/****************************************************************************
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* Function: osl_ext_task_is_running
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*
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* Purpose: Returns current running task.
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*
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* Parameters: None.
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*
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* Returns: osl_ext_task_t of current running task.
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*****************************************************************************
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*/
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osl_ext_task_t *osl_ext_task_current(void);
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/****************************************************************************
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* Function: osl_ext_task_yield
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*
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* Purpose: Yield the CPU to other tasks of the same priority that are
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* ready-to-run.
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*
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* Parameters: None.
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*
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* Returns: OSL_EXT_SUCCESS if successful, else error code.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_task_yield(void);
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/****************************************************************************
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* Function: osl_ext_task_enable_stack_check
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*
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* Purpose: Enable task stack checking.
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*
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* Parameters: None.
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*
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* Returns: OSL_EXT_SUCCESS if successful, else error code.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_task_enable_stack_check(void);
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/* --------------------------------------------------------------------------
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** Queue
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*/
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/****************************************************************************
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* Function: osl_ext_queue_create
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*
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* Purpose: Create a queue.
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*
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* Parameters: name (in) Name to assign to the queue (must be unique).
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* buffer (in) Queue buffer. NULL to allocate.
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* size (in) Size of the queue.
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* queue (out) Newly created queue.
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*
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* Returns: OSL_EXT_SUCCESS if the queue was created successfully, or an
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* error code if the queue could not be created.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_queue_create(char *name,
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void *queue_buffer, unsigned int queue_size,
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osl_ext_queue_t *queue);
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/****************************************************************************
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* Function: osl_ext_queue_delete
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*
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* Purpose: Destroys a previously created queue object.
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*
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* Parameters: queue (mod) Queue object to destroy.
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*
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* Returns: OSL_EXT_SUCCESS if the queue was deleted successfully, or an
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* error code if the queue could not be deleteed.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_queue_delete(osl_ext_queue_t *queue);
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/****************************************************************************
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* Function: osl_ext_queue_send
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*
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* Purpose: Send/add data to the queue. This function will not block the
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* calling thread if the queue is full.
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*
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* Parameters: queue (mod) Queue object.
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* data (in) Data pointer to be queued.
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*
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* Returns: OSL_EXT_SUCCESS if the data was queued successfully, or an
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* error code if the data could not be queued.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_queue_send(osl_ext_queue_t *queue, void *data);
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/****************************************************************************
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* Function: osl_ext_queue_send_synchronous
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*
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* Purpose: Send/add data to the queue. This function will block the
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* calling thread until the data is dequeued.
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*
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* Parameters: queue (mod) Queue object.
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* data (in) Data pointer to be queued.
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*
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* Returns: OSL_EXT_SUCCESS if the data was queued successfully, or an
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* error code if the data could not be queued.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_queue_send_synchronous(osl_ext_queue_t *queue, void *data);
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/****************************************************************************
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* Function: osl_ext_queue_receive
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*
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* Purpose: Receive/remove data from the queue. This function will only
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* block the calling thread for timeout_msec milliseconds, before
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* returning with OSL_EXT_TIMEOUT.
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*
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* Parameters: queue (mod) Queue object.
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* timeout_msec (in) Number of milliseconds to wait for the
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* data from the queue.
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* data (out) Data pointer received/removed from the queue.
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*
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* Returns: OSL_EXT_SUCCESS if the data was dequeued successfully, or an
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* error code if the data could not be dequeued.
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*****************************************************************************
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*/
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osl_ext_status_t osl_ext_queue_receive(osl_ext_queue_t *queue,
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osl_ext_time_ms_t timeout_msec, void **data);
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/****************************************************************************
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* Function: osl_ext_queue_count
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*
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* Purpose: Returns the number of items in the queue.
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*
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* Parameters: queue (mod) Queue object.
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* count (out) Data pointer received/removed from the queue.
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*
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* Returns: OSL_EXT_SUCCESS if the count was returned successfully, or an
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* error code if the count is invalid.
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*****************************************************************************
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|
*/
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|
osl_ext_status_t osl_ext_queue_count(osl_ext_queue_t *queue, int *count);
|
|
|
|
|
|
/* --------------------------------------------------------------------------
|
|
** Event
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_event_create
|
|
*
|
|
* Purpose: Creates a event object, which can subsequently be used to
|
|
* notify and trigger tasks.
|
|
*
|
|
* Parameters: name (in) Name to assign to the event (must be unique).
|
|
* event (out) Event object to initialize.
|
|
*
|
|
* Returns: OSL_EXT_SUCCESS if the event was created successfully, or an
|
|
* error code if the event could not be created.
|
|
*****************************************************************************
|
|
*/
|
|
osl_ext_status_t osl_ext_event_create(char *name, osl_ext_event_t *event);
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_event_delete
|
|
*
|
|
* Purpose: Destroys a previously created event object.
|
|
*
|
|
* Parameters: event (mod) Event object to destroy.
|
|
*
|
|
* Returns: OSL_EXT_SUCCESS if the event was created successfully, or an
|
|
* error code if the event could not be created.
|
|
*****************************************************************************
|
|
*/
|
|
osl_ext_status_t osl_ext_event_delete(osl_ext_event_t *event);
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_event_get
|
|
*
|
|
* Purpose: Get event from specified event object.
|
|
*
|
|
* Parameters: event (mod) Event object to get.
|
|
* requested (in) Requested event to get.
|
|
* timeout_msec (in) Number of milliseconds to wait for the event.
|
|
* event_bits (out) Event bits retrieved.
|
|
*
|
|
* Returns: OSL_EXT_SUCCESS if the event was created successfully, or an
|
|
* error code if the event could not be created.
|
|
*****************************************************************************
|
|
*/
|
|
osl_ext_status_t osl_ext_event_get(osl_ext_event_t *event,
|
|
osl_ext_event_bits_t requested, osl_ext_time_ms_t timeout_msec,
|
|
osl_ext_event_bits_t *event_bits);
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_event_set
|
|
*
|
|
* Purpose: Set event of specified event object.
|
|
*
|
|
* Parameters: event (mod) Event object to set.
|
|
* event_bits (in) Event bits to set.
|
|
*
|
|
* Returns: OSL_EXT_SUCCESS if the event was created successfully, or an
|
|
* error code if the event could not be created.
|
|
*****************************************************************************
|
|
*/
|
|
osl_ext_status_t osl_ext_event_set(osl_ext_event_t *event,
|
|
osl_ext_event_bits_t event_bits);
|
|
|
|
|
|
/* --------------------------------------------------------------------------
|
|
** Interrupt
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_interrupt_disable
|
|
*
|
|
* Purpose: Disable CPU interrupt.
|
|
*
|
|
* Parameters: None.
|
|
*
|
|
* Returns: The interrupt state before disable for restoring interrupt.
|
|
*****************************************************************************
|
|
*/
|
|
osl_ext_interrupt_state_t osl_ext_interrupt_disable(void);
|
|
|
|
|
|
/****************************************************************************
|
|
* Function: osl_ext_interrupt_restore
|
|
*
|
|
* Purpose: Restore CPU interrupt state.
|
|
*
|
|
* Parameters: state (in) Interrupt state to restore returned from
|
|
* osl_ext_interrupt_disable().
|
|
*
|
|
* Returns: None.
|
|
*****************************************************************************
|
|
*/
|
|
void osl_ext_interrupt_restore(osl_ext_interrupt_state_t state);
|
|
|
|
#else
|
|
|
|
/* ---- Constants and Types ---------------------------------------------- */
|
|
|
|
/* Semaphore. */
|
|
#define osl_ext_sem_t
|
|
#define OSL_EXT_SEM_DECL(sem)
|
|
|
|
/* Mutex. */
|
|
#define osl_ext_mutex_t
|
|
#define OSL_EXT_MUTEX_DECL(mutex)
|
|
|
|
/* Timer. */
|
|
#define osl_ext_timer_t
|
|
#define OSL_EXT_TIMER_DECL(timer)
|
|
|
|
/* Task. */
|
|
#define osl_ext_task_t void
|
|
#define OSL_EXT_TASK_DECL(task)
|
|
|
|
/* Queue. */
|
|
#define osl_ext_queue_t
|
|
#define OSL_EXT_QUEUE_DECL(queue)
|
|
|
|
/* Event. */
|
|
#define osl_ext_event_t
|
|
#define OSL_EXT_EVENT_DECL(event)
|
|
|
|
/* ---- Variable Externs ------------------------------------------------- */
|
|
/* ---- Function Prototypes ---------------------------------------------- */
|
|
|
|
#define osl_ext_sem_create(name, init_cnt, sem) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_sem_delete(sem) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_sem_give(sem) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_sem_take(sem, timeout_msec) (OSL_EXT_SUCCESS)
|
|
|
|
#define osl_ext_mutex_create(name, mutex) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_mutex_delete(mutex) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_mutex_acquire(mutex, timeout_msec) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_mutex_release(mutex) (OSL_EXT_SUCCESS)
|
|
|
|
#define osl_ext_timer_create(name, timeout_msec, mode, func, arg, timer) \
|
|
(OSL_EXT_SUCCESS)
|
|
#define osl_ext_timer_delete(timer) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_timer_start(timer, timeout_msec, mode) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_timer_stop(timer) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_time_get() (0)
|
|
|
|
#define osl_ext_task_create(name, stack, stack_size, priority, func, arg, task) \
|
|
(OSL_EXT_SUCCESS)
|
|
#define osl_ext_task_delete(task) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_task_current() (NULL)
|
|
#define osl_ext_task_yield() (OSL_EXT_SUCCESS)
|
|
#define osl_ext_task_enable_stack_check() (OSL_EXT_SUCCESS)
|
|
|
|
#define osl_ext_queue_create(name, queue_buffer, queue_size, queue) \
|
|
(OSL_EXT_SUCCESS)
|
|
#define osl_ext_queue_delete(queue) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_queue_send(queue, data) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_queue_send_synchronous(queue, data) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_queue_receive(queue, timeout_msec, data) \
|
|
(OSL_EXT_SUCCESS)
|
|
#define osl_ext_queue_count(queue, count) (OSL_EXT_SUCCESS)
|
|
|
|
#define osl_ext_event_create(name, event) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_event_delete(event) (OSL_EXT_SUCCESS)
|
|
#define osl_ext_event_get(event, requested, timeout_msec, event_bits) \
|
|
(OSL_EXT_SUCCESS)
|
|
#define osl_ext_event_set(event, event_bits) (OSL_EXT_SUCCESS)
|
|
|
|
#define osl_ext_interrupt_disable(void)
|
|
#define osl_ext_interrupt_restore(state)
|
|
|
|
#endif /* OSL_EXT_DISABLED */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _osl_ext_h_ */
|