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108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/**
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* @file rtems/init.h
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*
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*
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* This include file contains all the constants and structures associated
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* with the Initialization Manager. This manager is responsible for
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* initializing RTEMS, creating and starting all configured initialization
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* tasks, invoking the initialization routine for each user-supplied device
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* driver, and initializing the optional multiprocessor layer.
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*
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* This manager provides directives to:
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*
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* + initialize the RTEMS executive
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* + shutdown the RTEMS executive
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*/
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/*
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* COPYRIGHT (c) 1989-2008.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*/
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#ifndef _RTEMS_INIT_H
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#define _RTEMS_INIT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rtems/rtems/types.h>
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#include <rtems/config.h>
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#include <rtems/rtems/intr.h>
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#if defined(RTEMS_MULTIPROCESSING)
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/**
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* The following defines the default Multiprocessing Configuration
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* Table. This table is used in a single processor system.
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*/
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extern const rtems_multiprocessing_table
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_Initialization_Default_multiprocessing_table;
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#endif
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/**
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* @brief rtems_initialize_data_structures
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*
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* This routine implements the portion of the RTEMS initializatin process
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* that involves initializing data structures to a state that scheduling
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* can occur in a consistent manner.
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*/
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void rtems_initialize_data_structures(void);
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/**
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* @brief rtems_initialize_before_drivers
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*
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* This routine implements the portion of RTEMS initialization that
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* is done immediately before device drivers are initialized.
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*/
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void rtems_initialize_before_drivers(void);
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/**
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* @brief rtems_initialize_device_drivers
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*
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* This routine implements the portion of RTEMS initialization that
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* initializes all device drivers.
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*/
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void rtems_initialize_device_drivers(void);
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/**
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* @brief Starts the multitasking.
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*
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* This directive initiates multitasking and performs a context switch to the
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* first user application task and may enable interrupts as a side-effect of
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* that context switch. The context switch saves the executing context. The
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* application runs now. The directive rtems_shutdown_executive() will return
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* to the saved context. The exit() function will use this directive.
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*
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* After a return to the saved context a fatal system state is reached. The
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* fatal source is RTEMS_FATAL_SOURCE_EXIT with a fatal code set to the value
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* passed to rtems_shutdown_executive().
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*
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* This directive does not return.
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*/
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void rtems_initialize_start_multitasking(void)
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RTEMS_COMPILER_NO_RETURN_ATTRIBUTE;
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/**
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* @brief Shutdown the RTEMS environment
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*
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* This routine implements the rtems_shutdown_executive directive. The
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* invocation of this directive results in the RTEMS environment being
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* shutdown and multitasking halted. From the application's perspective,
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* invocation of this directive results in the rtems_initialize_executive
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* directive exitting to the startup code which invoked it.
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*/
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void rtems_shutdown_executive(
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uint32_t result
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) RTEMS_COMPILER_NO_RETURN_ATTRIBUTE;
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */
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