157 lines
5.3 KiB
C
157 lines
5.3 KiB
C
/****************************************************************************
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* sched/init/init.h
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*
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* Copyright (C) 2007-2014, 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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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
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* are met:
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*
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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#ifndef __SCHED_INIT_INIT_H
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#define __SCHED_INIT_INIT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: os_start
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*
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* Description:
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* This function is called to initialize the operating system and to spawn
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* the user initialization thread of execution. This is the initial entry
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* point into NuttX
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Does not return.
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*
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****************************************************************************/
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void os_start(void);
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/****************************************************************************
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* Name: os_smp_start
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*
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* Description:
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* In an SMP configution, only one CPU is initially active (CPU 0). System
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* initialization occurs on that single thread. At the completion of the
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* initialization of the OS, just before beginning normal multitasking,
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* the additional CPUs would be started by calling this function.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero on success; a negater errno value on failure.
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*
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****************************************************************************/
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#ifdef CONFIG_SMP
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int os_smp_start(void);
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#endif
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/****************************************************************************
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* Name: os_idle_trampoline
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*
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* Description:
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* This is the common IDLE task for CPUs 1 through (CONFIG_SMP_NCPUS-1).
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* It is equivalent to the CPU 0 IDLE logic in os_start.c
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*
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* Input Parameters:
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* Standard task arguments.
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*
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* Returned Value:
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* This function does not return.
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*
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****************************************************************************/
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#ifdef CONFIG_SMP
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void os_idle_trampoline(void);
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#endif
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/****************************************************************************
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* Name: os_idle_task
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*
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* Description:
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* This is the common IDLE task for CPUs 1 through (CONFIG_SMP_NCPUS-1).
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* It is equivalent to the CPU 0 IDLE logic in os_start.c
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*
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* Input Parameters:
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* Standard task arguments.
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*
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* Returned Value:
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* This function does not return.
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*
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****************************************************************************/
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#ifdef CONFIG_SMP
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int os_idle_task(int argc, FAR char *argv[]);
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#endif
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/****************************************************************************
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* Name: os_bringup
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*
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* Description:
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* Start all initial system tasks. This does the "system bring-up" after
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* the conclusion of basic OS initialization. These initial system tasks
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* may include:
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*
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* - pg_worker: The page-fault worker thread (only if CONFIG_PAGING is
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* defined.
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* - work_thread: The work thread. This general thread can be used to
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* perform most any kind of queued work. Its primary
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* function is to serve as the "bottom half" of device
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* drivers.
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*
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* And the main application entry point:
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* symbols:
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*
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* - USER_ENTRYPOINT: This is the default user application entry point.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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int os_bringup(void);
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#endif /* __SCHED_INIT_INIT_H */
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