123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
/****************************************************************************
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* sched/init/init.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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: nx_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 nx_start(void);
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/****************************************************************************
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* Name: nx_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 negated errno value on failure.
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*
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****************************************************************************/
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#ifdef CONFIG_SMP
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int nx_smp_start(void);
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#endif
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/****************************************************************************
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* Name: nx_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 nx_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 nx_idle_trampoline(void);
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#endif
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/****************************************************************************
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* Name: nx_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 (if CONFIG_LEGACY_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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* - INIT_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 nx_bringup(void);
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#endif /* __SCHED_INIT_INIT_H */
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