source: rtems/cpukit/sapi/src/exinit.c @ 08c3066

4.11
Last change on this file since 08c3066 was 08c3066, checked in by Ralf Corsepius <ralf.corsepius@…>, on Jun 18, 2010 at 3:03:22 AM

Remove RTEMS_ITRON_API conditional blocks.

  • Property mode set to 100644
File size: 5.7 KB
Line 
1/*
2 *  Initialization Manager
3 *
4 *  COPYRIGHT (c) 1989-2008.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18/*
19 *  SCORE_INIT and SAPI_INIT are defined so all of the super core and
20 *  super API data will be included in this object file.
21 */
22
23#define SAPI_INIT
24#define SCORE_INIT
25
26#include <rtems/system.h>
27#include <rtems/config.h>
28#include <rtems/debug.h>
29#include <rtems/extension.h>
30#include <rtems/fatal.h>
31#include <rtems/init.h>
32#include <rtems/io.h>
33#include <rtems/score/sysstate.h>
34
35#include <rtems/score/apiext.h>
36#include <rtems/score/apimutex.h>
37#include <rtems/score/copyrt.h>
38#include <rtems/score/heap.h>
39#include <rtems/score/interr.h>
40#include <rtems/score/isr.h>
41#if defined(RTEMS_MULTIPROCESSING)
42#include <rtems/score/mpci.h>
43#endif
44#include <rtems/score/priority.h>
45#include <rtems/score/thread.h>
46#include <rtems/score/tod.h>
47#include <rtems/score/userext.h>
48#include <rtems/score/watchdog.h>
49#include <rtems/score/wkspace.h>
50
51#include <rtems/sptables.h>
52
53
54#include <rtems/rtems/rtemsapi.h>
55#ifdef RTEMS_POSIX_API
56  #include <rtems/posix/posixapi.h>
57#endif
58
59Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
60
61void rtems_initialize_data_structures(void)
62{
63  /*
64   *  Dispatching and interrupts are disabled until the end of the
65   *  initialization sequence.  This prevents an inadvertent context
66   *  switch before the executive is initialized.
67   *
68   *  WARNING: Interrupts should have been disabled by the BSP and
69   *           are disabled by boot_card().
70   */
71
72  #if defined(RTEMS_MULTIPROCESSING)
73    /*
74     *  Initialize the system state based on whether this is an MP system.
75     *  In an MP configuration, internally we view single processor
76     *  systems as a very restricted multiprocessor system.
77     */
78    _Configuration_MP_table = Configuration.User_multiprocessing_table;
79
80    if ( _Configuration_MP_table == NULL ) {
81      _Configuration_MP_table =
82        (void *)&_Initialization_Default_multiprocessing_table;
83      _System_state_Handler_initialization( FALSE );
84    } else {
85      _System_state_Handler_initialization( TRUE );
86    }
87  #else
88    _System_state_Handler_initialization( FALSE );
89  #endif
90
91  /*
92   * Initialize any target architecture specific support as early as possible
93   */
94  _CPU_Initialize();
95
96  #if defined(RTEMS_MULTIPROCESSING)
97    _Objects_MP_Handler_early_initialization();
98  #endif
99
100  /*
101   *  Do this as early as possible to ensure no debugging output
102   *  is even attempted to be printed.
103   */
104  _Debug_Manager_initialization();
105
106  _API_extensions_Initialization();
107
108  _Thread_Dispatch_initialization();
109
110  /*
111   *  Before this is called, we are not allowed to allocate memory
112   *  from the Workspace because it is not initialized.
113   */
114  _Workspace_Handler_initialization();
115
116  _User_extensions_Handler_initialization();
117  _ISR_Handler_initialization();
118
119  /*
120   * Initialize the internal support API and allocator Mutex
121   */
122  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
123
124  _API_Mutex_Initialization( 1 );
125  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
126
127  _Priority_Handler_initialization();
128  _Watchdog_Handler_initialization();
129  _TOD_Handler_initialization();
130
131  _Thread_Handler_initialization();
132
133  #if defined(RTEMS_MULTIPROCESSING)
134    _Objects_MP_Handler_initialization();
135    _MPCI_Handler_initialization( RTEMS_TIMEOUT );
136  #endif
137
138/* MANAGERS */
139
140  _RTEMS_API_Initialize();
141
142  _Extension_Manager_initialization();
143
144  _IO_Manager_initialization();
145
146  #ifdef RTEMS_POSIX_API
147    _POSIX_API_Initialize();
148  #endif
149
150  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
151
152  /*
153   *  No threads should be created before this point!!!
154   *  _Thread_Executing and _Thread_Heir are not set.
155   *
156   *  At this point all API extensions are in place.  After the call to
157   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
158   */
159  _Thread_Create_idle();
160
161  /*
162   *  Scheduling can properly occur now as long as we avoid dispatching.
163   */
164}
165
166void rtems_initialize_before_drivers(void)
167{
168
169  #if defined(RTEMS_MULTIPROCESSING)
170    _MPCI_Create_server();
171  #endif
172
173  #if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API)
174    /*
175     *  Run the API and BSPs predriver hook.
176     */
177    _API_extensions_Run_predriver();
178  #endif
179}
180
181void rtems_initialize_device_drivers(void)
182{
183  /*
184   *  Initialize all the device drivers and initialize the MPCI layer.
185   *
186   *  NOTE:  The MPCI may be build upon a device driver.
187   */
188
189  _IO_Initialize_all_drivers();
190
191  #if defined(RTEMS_MULTIPROCESSING)
192    if ( _System_state_Is_multiprocessing ) {
193      _MPCI_Initialization();
194      _MPCI_Internal_packets_Send_process_packet(
195        MPCI_PACKETS_SYSTEM_VERIFY
196      );
197    }
198  #endif
199
200  /*
201   *  Run the APIs and BSPs postdriver hooks.
202   *
203   *  The API extensions are supposed to create user initialization tasks.
204   */
205  _API_extensions_Run_postdriver();
206}
207
208void rtems_initialize_start_multitasking(void)
209{
210
211  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
212
213  _Thread_Start_multitasking();
214
215  /*******************************************************************
216   *******************************************************************
217   *******************************************************************
218   ******                 APPLICATION RUNS HERE                 ******
219   ******            RETURNS WHEN SYSTEM IS SHUT DOWN           ******
220   *******************************************************************
221   *******************************************************************
222   *******************************************************************/
223}
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