source: rtems/cpukit/sapi/src/exinit.c @ ae39df4

4.11
Last change on this file since ae39df4 was f031df0e, checked in by Sebastian Huber <sebastian.huber@…>, on Jul 31, 2013 at 11:42:07 AM

score: Rename tod.h to todimpl.h

  • 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/extensionimpl.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#include <rtems/score/priority.h>
48#include <rtems/score/prioritybitmapimpl.h>
49#include <rtems/score/schedulerimpl.h>
50#include <rtems/score/threadimpl.h>
51#include <rtems/score/todimpl.h>
52#include <rtems/score/userextimpl.h>
53#include <rtems/score/watchdogimpl.h>
54#include <rtems/score/wkspace.h>
55
56#include <rtems/sptables.h>
57
58
59#include <rtems/rtems/rtemsapi.h>
60#ifdef RTEMS_POSIX_API
61  #include <rtems/posix/posixapi.h>
62#endif
63
64#if defined(RTEMS_SMP)
65  #include <rtems/score/smp.h>
66  #include <rtems/score/percpu.h>
67#endif
68
69Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
70
71void rtems_initialize_data_structures(void)
72{
73  /*
74   *  Dispatching and interrupts are disabled until the end of the
75   *  initialization sequence.  This prevents an inadvertent context
76   *  switch before the executive is initialized.
77   *
78   *  WARNING: Interrupts should have been disabled by the BSP and
79   *           are disabled by boot_card().
80   */
81
82  #if defined(RTEMS_MULTIPROCESSING)
83    /*
84     *  Initialize the system state based on whether this is an MP system.
85     *  In an MP configuration, internally we view single processor
86     *  systems as a very restricted multiprocessor system.
87     */
88    _Configuration_MP_table = rtems_configuration_get_user_multiprocessing_table();
89
90    if ( _Configuration_MP_table == NULL ) {
91      _Configuration_MP_table =
92        (void *)&_Initialization_Default_multiprocessing_table;
93      _System_state_Handler_initialization( FALSE );
94    } else {
95      _System_state_Handler_initialization( TRUE );
96    }
97  #else
98    _System_state_Handler_initialization( FALSE );
99  #endif
100
101  /*
102   * Initialize any target architecture specific support as early as possible
103   */
104  _CPU_Initialize();
105
106  #if defined(RTEMS_MULTIPROCESSING)
107    _Objects_MP_Handler_early_initialization();
108  #endif
109
110  /*
111   *  Do this as early as possible to ensure no debugging output
112   *  is even attempted to be printed.
113   */
114  _Debug_Manager_initialization();
115
116  _API_extensions_Initialization();
117
118  _Thread_Dispatch_initialization();
119
120  _User_extensions_Handler_initialization();
121  _ISR_Handler_initialization();
122
123  /*
124   * Initialize the internal support API and allocator Mutex
125   */
126  _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects;
127
128  _API_Mutex_Initialization( 1 );
129  _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
130
131  _Priority_bit_map_Handler_initialization();
132  _Watchdog_Handler_initialization();
133  _TOD_Handler_initialization();
134
135  _Thread_Handler_initialization();
136
137  _Scheduler_Handler_initialization();
138
139  #if defined(RTEMS_MULTIPROCESSING)
140    _Objects_MP_Handler_initialization();
141    _MPCI_Handler_initialization( RTEMS_TIMEOUT );
142  #endif
143
144/* MANAGERS */
145
146  _RTEMS_API_Initialize();
147
148  _Extension_Manager_initialization();
149
150  _IO_Manager_initialization();
151
152  #ifdef RTEMS_POSIX_API
153    _POSIX_API_Initialize();
154  #endif
155
156  #if defined(RTEMS_SMP)
157    _SMP_Handler_initialize();
158  #endif
159
160  _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING );
161
162  /*
163   *  No threads should be created before this point!!!
164   *  _Thread_Executing and _Thread_Heir are not set.
165   *
166   *  At this point all API extensions are in place.  After the call to
167   *  _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set.
168   */
169  _Thread_Create_idle();
170
171  /*
172   *  Scheduling can properly occur now as long as we avoid dispatching.
173   */
174}
175
176void rtems_initialize_before_drivers(void)
177{
178
179  #if defined(RTEMS_MULTIPROCESSING)
180    _MPCI_Create_server();
181  #endif
182
183  #if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API)
184    /*
185     *  Run the API and BSPs predriver hook.
186     */
187    _API_extensions_Run_predriver();
188  #endif
189}
190
191void rtems_initialize_device_drivers(void)
192{
193  /*
194   *  Initialize all the device drivers and initialize the MPCI layer.
195   *
196   *  NOTE:  The MPCI may be build upon a device driver.
197   */
198
199  _IO_Initialize_all_drivers();
200
201  #if defined(RTEMS_MULTIPROCESSING)
202    if ( _System_state_Is_multiprocessing ) {
203      _MPCI_Initialization();
204      _MPCI_Internal_packets_Send_process_packet(
205        MPCI_PACKETS_SYSTEM_VERIFY
206      );
207    }
208  #endif
209
210  /*
211   *  Run the APIs and BSPs postdriver hooks.
212   *
213   *  The API extensions are supposed to create user initialization tasks.
214   */
215  _API_extensions_Run_postdriver();
216}
217
218void rtems_initialize_start_multitasking(void)
219{
220  uint32_t status;
221
222  _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING );
223
224#ifdef RTEMS_SMP
225  _SMP_Request_other_cores_to_perform_first_context_switch();
226#endif
227
228  _Thread_Start_multitasking();
229
230  /*******************************************************************
231   *******************************************************************
232   *******************************************************************
233   ******                 APPLICATION RUNS HERE                 ******
234   ******            RETURNS WHEN SYSTEM IS SHUT DOWN           ******
235   *******************************************************************
236   *******************************************************************
237   *******************************************************************/
238
239  status = _Thread_Get_global_exit_status();
240  rtems_fatal( RTEMS_FATAL_SOURCE_EXIT, status );
241}
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