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/*
* Initialization Manager
*
* COPYRIGHT (c) 1989-2011.
* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
/*
* SCORE_INIT and SAPI_INIT are defined so all of the super core and
* super API data will be included in this object file.
*/
#define SAPI_INIT
#define SCORE_INIT
#include <rtems/system.h>
#include <rtems/config.h>
#include <rtems/debug.h>
#include <rtems/extension.h>
#include <rtems/fatal.h>
#include <rtems/init.h>
#include <rtems/io.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/apiext.h>
#include <rtems/score/apimutex.h>
#include <rtems/score/copyrt.h>
#include <rtems/score/heap.h>
#include <rtems/score/interr.h>
#include <rtems/score/isr.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/score/priority.h>
#include <rtems/score/scheduler.h>
#include <rtems/score/thread.h>
#include <rtems/score/tod.h>
#include <rtems/score/userext.h>
#include <rtems/score/watchdog.h>
#include <rtems/score/wkspace.h>
#include <rtems/sptables.h>
#include <rtems/rtems/rtemsapi.h>
#ifdef RTEMS_POSIX_API
#include <rtems/posix/posixapi.h>
#endif
#if defined(RTEMS_SMP)
#include <rtems/score/smp.h>
#include <rtems/score/percpu.h>
#endif
Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
void rtems_initialize_data_structures(void)
{
/*
* Dispatching and interrupts are disabled until the end of the
* initialization sequence. This prevents an inadvertent context
* switch before the executive is initialized.
*
* WARNING: Interrupts should have been disabled by the BSP and
* are disabled by boot_card().
*/
#if defined(RTEMS_MULTIPROCESSING)
/*
* Initialize the system state based on whether this is an MP system.
* In an MP configuration, internally we view single processor
* systems as a very restricted multiprocessor system.
*/
_Configuration_MP_table = Configuration.User_multiprocessing_table;
if ( _Configuration_MP_table == NULL ) {
_Configuration_MP_table =
(void *)&_Initialization_Default_multiprocessing_table;
_System_state_Handler_initialization( FALSE );
} else {
_System_state_Handler_initialization( TRUE );
}
#else
_System_state_Handler_initialization( FALSE );
#endif
/*
* Initialize any target architecture specific support as early as possible
*/
_CPU_Initialize();
#if defined(RTEMS_MULTIPROCESSING)
_Objects_MP_Handler_early_initialization();
#endif
/*
* Do this as early as possible to ensure no debugging output
* is even attempted to be printed.
*/
_Debug_Manager_initialization();
_API_extensions_Initialization();
_Thread_Dispatch_initialization();
/*
* Before this is called, we are not allowed to allocate memory
* from the Workspace because it is not initialized.
*/
_Workspace_Handler_initialization();
#if defined(RTEMS_SMP)
_SMP_Handler_initialize();
#endif
_User_extensions_Handler_initialization();
_ISR_Handler_initialization();
/*
* Initialize the internal support API and allocator Mutex
*/
_Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
_API_Mutex_Initialization( 1 );
_API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
_Priority_bit_map_Handler_initialization();
_Watchdog_Handler_initialization();
_TOD_Handler_initialization();
_Thread_Handler_initialization();
_Scheduler_Handler_initialization();
#if defined(RTEMS_MULTIPROCESSING)
_Objects_MP_Handler_initialization();
_MPCI_Handler_initialization( RTEMS_TIMEOUT );
#endif
/* MANAGERS */
_RTEMS_API_Initialize();
_Extension_Manager_initialization();
_IO_Manager_initialization();
#ifdef RTEMS_POSIX_API
_POSIX_API_Initialize();
#endif
/*
* Discover and initialize the secondary cores in an SMP system.
*/
#if defined(RTEMS_SMP)
_SMP_Processor_count =
bsp_smp_initialize( rtems_configuration_smp_maximum_processors );
#endif
_System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
/*
* No threads should be created before this point!!!
* _Thread_Executing and _Thread_Heir are not set.
*
* At this point all API extensions are in place. After the call to
* _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
*/
_Thread_Create_idle();
/*
* Scheduling can properly occur now as long as we avoid dispatching.
*/
}
void rtems_initialize_before_drivers(void)
{
#if defined(RTEMS_MULTIPROCESSING)
_MPCI_Create_server();
#endif
#if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API)
/*
* Run the API and BSPs predriver hook.
*/
_API_extensions_Run_predriver();
#endif
}
void rtems_initialize_device_drivers(void)
{
/*
* Initialize all the device drivers and initialize the MPCI layer.
*
* NOTE: The MPCI may be build upon a device driver.
*/
_IO_Initialize_all_drivers();
#if defined(RTEMS_MULTIPROCESSING)
if ( _System_state_Is_multiprocessing ) {
_MPCI_Initialization();
_MPCI_Internal_packets_Send_process_packet(
MPCI_PACKETS_SYSTEM_VERIFY
);
}
#endif
/*
* Run the APIs and BSPs postdriver hooks.
*
* The API extensions are supposed to create user initialization tasks.
*/
_API_extensions_Run_postdriver();
}
uint32_t rtems_initialize_start_multitasking(void)
{
_System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
_Thread_Start_multitasking();
/*******************************************************************
*******************************************************************
*******************************************************************
****** APPLICATION RUNS HERE ******
****** RETURNS WHEN SYSTEM IS SHUT DOWN ******
*******************************************************************
*******************************************************************
*******************************************************************/
return _Per_CPU_Information[0].idle->Wait.return_code;
}
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