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