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 | #ifdef RTEMS_ITRON_API |
---|
59 | #include <rtems/itron/itronapi.h> |
---|
60 | #endif |
---|
61 | |
---|
62 | Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ]; |
---|
63 | |
---|
64 | void rtems_initialize_data_structures(void) |
---|
65 | { |
---|
66 | rtems_interrupt_level bsp_level; |
---|
67 | |
---|
68 | /* |
---|
69 | * Dispatching and interrupts are disabled until the end of the |
---|
70 | * initialization sequence. This prevents an inadvertent context |
---|
71 | * switch before the executive is initialized. |
---|
72 | */ |
---|
73 | _ISR_Disable( bsp_level ); |
---|
74 | |
---|
75 | /* |
---|
76 | * Initialize any target architecture specific support as early as possible |
---|
77 | */ |
---|
78 | _CPU_Initialize( _Thread_Dispatch ); |
---|
79 | |
---|
80 | #if defined(RTEMS_MULTIPROCESSING) |
---|
81 | /* |
---|
82 | * Initialize the system state based on whether this is an MP system. |
---|
83 | * In an MP configuration, internally we view single processor |
---|
84 | * systems as a very restricted multiprocessor system. |
---|
85 | */ |
---|
86 | _Configuration_MP_table = Configuration.User_multiprocessing_table; |
---|
87 | |
---|
88 | if ( _Configuration_MP_table == NULL ) { |
---|
89 | _Configuration_MP_table = |
---|
90 | (void *)&_Initialization_Default_multiprocessing_table; |
---|
91 | _System_state_Handler_initialization( FALSE ); |
---|
92 | } else { |
---|
93 | _System_state_Handler_initialization( TRUE ); |
---|
94 | } |
---|
95 | #else |
---|
96 | _System_state_Handler_initialization( FALSE ); |
---|
97 | #endif |
---|
98 | |
---|
99 | /* |
---|
100 | * Do this as early as possible to ensure no debugging output |
---|
101 | * is even attempted to be printed. |
---|
102 | */ |
---|
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 | #ifdef RTEMS_ITRON_API |
---|
151 | _ITRON_API_Initialize(); |
---|
152 | #endif |
---|
153 | |
---|
154 | _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING ); |
---|
155 | |
---|
156 | /* |
---|
157 | * No threads should be created before this point!!! |
---|
158 | * _Thread_Executing and _Thread_Heir are not set. |
---|
159 | * |
---|
160 | * At this point all API extensions are in place. After the call to |
---|
161 | * _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set. |
---|
162 | */ |
---|
163 | |
---|
164 | _Thread_Create_idle(); |
---|
165 | |
---|
166 | /* |
---|
167 | * Scheduling can properly occur now as long as we avoid dispatching. |
---|
168 | */ |
---|
169 | } |
---|
170 | |
---|
171 | void rtems_initialize_before_drivers(void) |
---|
172 | { |
---|
173 | |
---|
174 | #if defined(RTEMS_MULTIPROCESSING) |
---|
175 | _MPCI_Create_server(); |
---|
176 | #endif |
---|
177 | |
---|
178 | /* |
---|
179 | * Run the API and BSPs predriver hook. |
---|
180 | */ |
---|
181 | |
---|
182 | _API_extensions_Run_predriver(); |
---|
183 | |
---|
184 | } |
---|
185 | |
---|
186 | void rtems_initialize_device_drivers(void) |
---|
187 | { |
---|
188 | /* |
---|
189 | * Initialize all the device drivers and initialize the MPCI layer. |
---|
190 | * |
---|
191 | * NOTE: The MPCI may be build upon a device driver. |
---|
192 | */ |
---|
193 | |
---|
194 | _IO_Initialize_all_drivers(); |
---|
195 | |
---|
196 | #if defined(RTEMS_MULTIPROCESSING) |
---|
197 | if ( _System_state_Is_multiprocessing ) { |
---|
198 | _MPCI_Initialization(); |
---|
199 | _MPCI_Internal_packets_Send_process_packet( |
---|
200 | MPCI_PACKETS_SYSTEM_VERIFY |
---|
201 | ); |
---|
202 | } |
---|
203 | #endif |
---|
204 | |
---|
205 | /* |
---|
206 | * Run the APIs and BSPs postdriver hooks. |
---|
207 | * |
---|
208 | * The API extensions are supposed to create user initialization tasks. |
---|
209 | */ |
---|
210 | |
---|
211 | _API_extensions_Run_postdriver(); |
---|
212 | } |
---|
213 | |
---|
214 | void rtems_initialize_start_multitasking(void) |
---|
215 | { |
---|
216 | |
---|
217 | _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING ); |
---|
218 | |
---|
219 | _Thread_Start_multitasking(); |
---|
220 | |
---|
221 | /******************************************************************* |
---|
222 | ******************************************************************* |
---|
223 | ******************************************************************* |
---|
224 | ****** APPLICATION RUNS HERE ****** |
---|
225 | ****** RETURNS WHEN SYSTEM IS SHUT DOWN ****** |
---|
226 | ******************************************************************* |
---|
227 | ******************************************************************* |
---|
228 | *******************************************************************/ |
---|
229 | } |
---|