source: rtems/cpukit/sapi/src/exinit.c @ e3be691

4.11
Last change on this file since e3be691 was e3be691, checked in by Sebastian Huber <sebastian.huber@…>, on May 27, 2013 at 3:31:46 PM

score: Remove idle field of Per_CPU_Control

This field is unused except for special case simulator clock drivers.
In these places use an alternative. Add and use
_Thread_Set_global_exit_status() and _Thread_Get_global_exit_status().

  • Property mode set to 100644
File size: 6.1 KB
Line 
1/**
2 * @file
3 *
4 * @brief Device Driver Initialization Functions
5 *
6 * @ingroup ClassicRTEMS
7 */
8
9/*
10 *  Initialization Manager
11 *
12 *  COPYRIGHT (c) 1989-2011.
13 *  On-Line Applications Research Corporation (OAR).
14 *
15 *  The license and distribution terms for this file may be
16 *  found in the file LICENSE in this distribution or at
17 *  http://www.rtems.com/license/LICENSE.
18 */
19
20#if HAVE_CONFIG_H
21#include "config.h"
22#endif
23
24/*
25 *  SCORE_INIT and SAPI_INIT are defined so all of the super core and
26 *  super API data will be included in this object file.
27 */
28
29#define SAPI_INIT
30#define SCORE_INIT
31
32#include <rtems/system.h>
33#include <rtems/config.h>
34#include <rtems/debug.h>
35#include <rtems/extension.h>
36#include <rtems/fatal.h>
37#include <rtems/init.h>
38#include <rtems/io.h>
39#include <rtems/score/sysstate.h>
40
41#include <rtems/score/apiext.h>
42#include <rtems/score/apimutex.h>
43#include <rtems/score/copyrt.h>
44#include <rtems/score/heap.h>
45#include <rtems/score/interr.h>
46#include <rtems/score/isr.h>
47#if defined(RTEMS_MULTIPROCESSING)
48#include <rtems/score/mpci.h>
49#endif
50#include <rtems/score/priority.h>
51#include <rtems/score/scheduler.h>
52#include <rtems/score/thread.h>
53#include <rtems/score/tod.h>
54#include <rtems/score/userextimpl.h>
55#include <rtems/score/watchdog.h>
56#include <rtems/score/wkspace.h>
57
58#include <rtems/sptables.h>
59
60
61#include <rtems/rtems/rtemsapi.h>
62#ifdef RTEMS_POSIX_API
63  #include <rtems/posix/posixapi.h>
64#endif
65
66#if defined(RTEMS_SMP)
67  #include <rtems/score/smp.h>
68  #include <rtems/score/percpu.h>
69#endif
70
71Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
72
73void rtems_initialize_data_structures(void)
74{
75  /*
76   *  Dispatching and interrupts are disabled until the end of the
77   *  initialization sequence.  This prevents an inadvertent context
78   *  switch before the executive is initialized.
79   *
80   *  WARNING: Interrupts should have been disabled by the BSP and
81   *           are disabled by boot_card().
82   */
83
84  #if defined(RTEMS_MULTIPROCESSING)
85    /*
86     *  Initialize the system state based on whether this is an MP system.
87     *  In an MP configuration, internally we view single processor
88     *  systems as a very restricted multiprocessor system.
89     */
90    _Configuration_MP_table = rtems_configuration_get_user_multiprocessing_table();
91
92    if ( _Configuration_MP_table == NULL ) {
93      _Configuration_MP_table =
94        (void *)&_Initialization_Default_multiprocessing_table;
95      _System_state_Handler_initialization( FALSE );
96    } else {
97      _System_state_Handler_initialization( TRUE );
98    }
99  #else
100    _System_state_Handler_initialization( FALSE );
101  #endif
102
103  /*
104   * Initialize any target architecture specific support as early as possible
105   */
106  _CPU_Initialize();
107
108  #if defined(RTEMS_MULTIPROCESSING)
109    _Objects_MP_Handler_early_initialization();
110  #endif
111
112  /*
113   *  Do this as early as possible to ensure no debugging output
114   *  is even attempted to be printed.
115   */
116  _Debug_Manager_initialization();
117
118  _API_extensions_Initialization();
119
120  _Thread_Dispatch_initialization();
121
122  _User_extensions_Handler_initialization();
123  _ISR_Handler_initialization();
124
125  /*
126   * Initialize the internal support API and allocator Mutex
127   */
128  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
129
130  _API_Mutex_Initialization( 1 );
131  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
132
133  _Priority_bit_map_Handler_initialization();
134  _Watchdog_Handler_initialization();
135  _TOD_Handler_initialization();
136
137  _Thread_Handler_initialization();
138
139  _Scheduler_Handler_initialization();
140
141  #if defined(RTEMS_MULTIPROCESSING)
142    _Objects_MP_Handler_initialization();
143    _MPCI_Handler_initialization( RTEMS_TIMEOUT );
144  #endif
145
146/* MANAGERS */
147
148  _RTEMS_API_Initialize();
149
150  _Extension_Manager_initialization();
151
152  _IO_Manager_initialization();
153
154  #ifdef RTEMS_POSIX_API
155    _POSIX_API_Initialize();
156  #endif
157
158  #if defined(RTEMS_SMP)
159    _SMP_Handler_initialize();
160  #endif
161
162  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
163
164  /*
165   *  No threads should be created before this point!!!
166   *  _Thread_Executing and _Thread_Heir are not set.
167   *
168   *  At this point all API extensions are in place.  After the call to
169   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
170   */
171  _Thread_Create_idle();
172
173  /*
174   *  Scheduling can properly occur now as long as we avoid dispatching.
175   */
176}
177
178void rtems_initialize_before_drivers(void)
179{
180
181  #if defined(RTEMS_MULTIPROCESSING)
182    _MPCI_Create_server();
183  #endif
184
185  #if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API)
186    /*
187     *  Run the API and BSPs predriver hook.
188     */
189    _API_extensions_Run_predriver();
190  #endif
191}
192
193void rtems_initialize_device_drivers(void)
194{
195  /*
196   *  Initialize all the device drivers and initialize the MPCI layer.
197   *
198   *  NOTE:  The MPCI may be build upon a device driver.
199   */
200
201  _IO_Initialize_all_drivers();
202
203  #if defined(RTEMS_MULTIPROCESSING)
204    if ( _System_state_Is_multiprocessing ) {
205      _MPCI_Initialization();
206      _MPCI_Internal_packets_Send_process_packet(
207        MPCI_PACKETS_SYSTEM_VERIFY
208      );
209    }
210  #endif
211
212  /*
213   *  Run the APIs and BSPs postdriver hooks.
214   *
215   *  The API extensions are supposed to create user initialization tasks.
216   */
217  _API_extensions_Run_postdriver();
218}
219
220void rtems_initialize_start_multitasking(void)
221{
222  uint32_t status;
223
224  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
225
226#ifdef RTEMS_SMP
227  _SMP_Request_other_cores_to_perform_first_context_switch();
228#endif
229
230  _Thread_Start_multitasking();
231
232  /*******************************************************************
233   *******************************************************************
234   *******************************************************************
235   ******                 APPLICATION RUNS HERE                 ******
236   ******            RETURNS WHEN SYSTEM IS SHUT DOWN           ******
237   *******************************************************************
238   *******************************************************************
239   *******************************************************************/
240
241  status = _Thread_Get_global_exit_status();
242  rtems_fatal( RTEMS_FATAL_SOURCE_EXIT, status );
243}
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