[4c98a3e] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @brief Device Driver Initialization Functions |
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| 5 | * |
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| 6 | * @ingroup ClassicRTEMS |
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| 7 | */ |
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| 8 | |
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[ac7d5ef0] | 9 | /* |
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| 10 | * Initialization Manager |
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| 11 | * |
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[06dcaf0] | 12 | * COPYRIGHT (c) 1989-2011. |
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[ac7d5ef0] | 13 | * On-Line Applications Research Corporation (OAR). |
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| 14 | * |
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[98e4ebf5] | 15 | * The license and distribution terms for this file may be |
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| 16 | * found in the file LICENSE in this distribution or at |
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[2ba508b] | 17 | * http://www.rtems.com/license/LICENSE. |
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[ac7d5ef0] | 18 | */ |
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| 19 | |
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[16351f7a] | 20 | #if HAVE_CONFIG_H |
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| 21 | #include "config.h" |
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| 22 | #endif |
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| 23 | |
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[ac7d5ef0] | 24 | /* |
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[8486081] | 25 | * SCORE_INIT and SAPI_INIT are defined so all of the super core and |
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[c627b2a3] | 26 | * super API data will be included in this object file. |
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[ac7d5ef0] | 27 | */ |
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| 28 | |
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[c627b2a3] | 29 | #define SAPI_INIT |
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| 30 | #define SCORE_INIT |
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[ac7d5ef0] | 31 | |
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| 32 | #include <rtems/system.h> |
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| 33 | #include <rtems/config.h> |
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| 34 | #include <rtems/debug.h> |
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| 35 | #include <rtems/extension.h> |
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| 36 | #include <rtems/fatal.h> |
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| 37 | #include <rtems/init.h> |
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| 38 | #include <rtems/io.h> |
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[5e9b32b] | 39 | #include <rtems/score/sysstate.h> |
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[ac7d5ef0] | 40 | |
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[5e9b32b] | 41 | #include <rtems/score/apiext.h> |
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[a2a8c5b] | 42 | #include <rtems/score/apimutex.h> |
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[5e9b32b] | 43 | #include <rtems/score/copyrt.h> |
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| 44 | #include <rtems/score/heap.h> |
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| 45 | #include <rtems/score/interr.h> |
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| 46 | #include <rtems/score/isr.h> |
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[97e2729d] | 47 | #if defined(RTEMS_MULTIPROCESSING) |
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[5e9b32b] | 48 | #include <rtems/score/mpci.h> |
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[97e2729d] | 49 | #endif |
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[5e9b32b] | 50 | #include <rtems/score/priority.h> |
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[0faa9dad] | 51 | #include <rtems/score/scheduler.h> |
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[5e9b32b] | 52 | #include <rtems/score/thread.h> |
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| 53 | #include <rtems/score/tod.h> |
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[3be0c9a] | 54 | #include <rtems/score/userextimpl.h> |
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[5e9b32b] | 55 | #include <rtems/score/watchdog.h> |
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| 56 | #include <rtems/score/wkspace.h> |
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[3a4ae6c] | 57 | |
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[ac7d5ef0] | 58 | #include <rtems/sptables.h> |
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| 59 | |
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[c627b2a3] | 60 | |
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[3a4ae6c] | 61 | #include <rtems/rtems/rtemsapi.h> |
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[c627b2a3] | 62 | #ifdef RTEMS_POSIX_API |
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[aac75d3b] | 63 | #include <rtems/posix/posixapi.h> |
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[c627b2a3] | 64 | #endif |
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[352c9b2] | 65 | |
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[06dcaf0] | 66 | #if defined(RTEMS_SMP) |
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[0d5a9f1] | 67 | #include <rtems/score/smp.h> |
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[06dcaf0] | 68 | #include <rtems/score/percpu.h> |
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| 69 | #endif |
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| 70 | |
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[0577ec1d] | 71 | Objects_Information *_Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ]; |
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[3a4ae6c] | 72 | |
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[aac75d3b] | 73 | void rtems_initialize_data_structures(void) |
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[ac7d5ef0] | 74 | { |
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| 75 | /* |
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| 76 | * Dispatching and interrupts are disabled until the end of the |
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| 77 | * initialization sequence. This prevents an inadvertent context |
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| 78 | * switch before the executive is initialized. |
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[a0d22251] | 79 | * |
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| 80 | * WARNING: Interrupts should have been disabled by the BSP and |
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| 81 | * are disabled by boot_card(). |
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[ac7d5ef0] | 82 | */ |
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| 83 | |
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[aac75d3b] | 84 | #if defined(RTEMS_MULTIPROCESSING) |
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| 85 | /* |
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| 86 | * Initialize the system state based on whether this is an MP system. |
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| 87 | * In an MP configuration, internally we view single processor |
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| 88 | * systems as a very restricted multiprocessor system. |
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| 89 | */ |
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[f536e12] | 90 | _Configuration_MP_table = rtems_configuration_get_user_multiprocessing_table(); |
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[aac75d3b] | 91 | |
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| 92 | if ( _Configuration_MP_table == NULL ) { |
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| 93 | _Configuration_MP_table = |
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| 94 | (void *)&_Initialization_Default_multiprocessing_table; |
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| 95 | _System_state_Handler_initialization( FALSE ); |
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| 96 | } else { |
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| 97 | _System_state_Handler_initialization( TRUE ); |
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| 98 | } |
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| 99 | #else |
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[9221838] | 100 | _System_state_Handler_initialization( FALSE ); |
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[aac75d3b] | 101 | #endif |
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[ac7d5ef0] | 102 | |
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[45d107ec] | 103 | /* |
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| 104 | * Initialize any target architecture specific support as early as possible |
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| 105 | */ |
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| 106 | _CPU_Initialize(); |
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| 107 | |
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[562eab5c] | 108 | #if defined(RTEMS_MULTIPROCESSING) |
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| 109 | _Objects_MP_Handler_early_initialization(); |
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| 110 | #endif |
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| 111 | |
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[3a4ae6c] | 112 | /* |
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[aac75d3b] | 113 | * Do this as early as possible to ensure no debugging output |
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[3a4ae6c] | 114 | * is even attempted to be printed. |
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| 115 | */ |
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| 116 | _Debug_Manager_initialization(); |
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[ac7d5ef0] | 117 | |
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[7af35da5] | 118 | _API_extensions_Initialization(); |
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| 119 | |
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[ac7d5ef0] | 120 | _Thread_Dispatch_initialization(); |
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| 121 | |
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[06dcaf0] | 122 | #if defined(RTEMS_SMP) |
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| 123 | _SMP_Handler_initialize(); |
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| 124 | #endif |
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| 125 | |
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[790b50b] | 126 | _User_extensions_Handler_initialization(); |
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[ac7d5ef0] | 127 | _ISR_Handler_initialization(); |
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[0577ec1d] | 128 | |
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[70669f28] | 129 | /* |
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[790b50b] | 130 | * Initialize the internal support API and allocator Mutex |
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[70669f28] | 131 | */ |
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[790b50b] | 132 | _Objects_Information_table[OBJECTS_INTERNAL_API] = _Internal_Objects; |
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| 133 | |
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[70669f28] | 134 | _API_Mutex_Initialization( 1 ); |
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[8fd28d83] | 135 | _API_Mutex_Allocate( &_RTEMS_Allocator_Mutex ); |
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[70669f28] | 136 | |
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[a55e305] | 137 | _Priority_bit_map_Handler_initialization(); |
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[ac7d5ef0] | 138 | _Watchdog_Handler_initialization(); |
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[790b50b] | 139 | _TOD_Handler_initialization(); |
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[ac7d5ef0] | 140 | |
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[790b50b] | 141 | _Thread_Handler_initialization(); |
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[ac7d5ef0] | 142 | |
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[0faa9dad] | 143 | _Scheduler_Handler_initialization(); |
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| 144 | |
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[aac75d3b] | 145 | #if defined(RTEMS_MULTIPROCESSING) |
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[584ab9e] | 146 | _Objects_MP_Handler_initialization(); |
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[790b50b] | 147 | _MPCI_Handler_initialization( RTEMS_TIMEOUT ); |
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[aac75d3b] | 148 | #endif |
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[ac7d5ef0] | 149 | |
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[3a4ae6c] | 150 | /* MANAGERS */ |
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[ac7d5ef0] | 151 | |
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[aac75d3b] | 152 | _RTEMS_API_Initialize(); |
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[0577ec1d] | 153 | |
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[790b50b] | 154 | _Extension_Manager_initialization(); |
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[ac7d5ef0] | 155 | |
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[790b50b] | 156 | _IO_Manager_initialization(); |
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[ac7d5ef0] | 157 | |
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[aac75d3b] | 158 | #ifdef RTEMS_POSIX_API |
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| 159 | _POSIX_API_Initialize(); |
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| 160 | #endif |
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[d4b44877] | 161 | |
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[06dcaf0] | 162 | /* |
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| 163 | * Discover and initialize the secondary cores in an SMP system. |
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| 164 | */ |
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| 165 | #if defined(RTEMS_SMP) |
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[e79093a] | 166 | _SMP_Processor_count = |
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[6c2eedc] | 167 | bsp_smp_initialize( rtems_configuration_get_maximum_processors() ); |
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[06dcaf0] | 168 | #endif |
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| 169 | |
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[56d34e6] | 170 | _System_state_Set( SYSTEM_STATE_BEFORE_MULTITASKING ); |
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| 171 | |
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| 172 | /* |
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[8486081] | 173 | * No threads should be created before this point!!! |
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[a2a8c5b] | 174 | * _Thread_Executing and _Thread_Heir are not set. |
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[56d34e6] | 175 | * |
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| 176 | * At this point all API extensions are in place. After the call to |
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[a2a8c5b] | 177 | * _Thread_Create_idle() _Thread_Executing and _Thread_Heir will be set. |
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[56d34e6] | 178 | */ |
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| 179 | _Thread_Create_idle(); |
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| 180 | |
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[a2a8c5b] | 181 | /* |
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| 182 | * Scheduling can properly occur now as long as we avoid dispatching. |
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| 183 | */ |
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[d86ae06] | 184 | } |
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[a2a8c5b] | 185 | |
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[d86ae06] | 186 | void rtems_initialize_before_drivers(void) |
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| 187 | { |
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[a2a8c5b] | 188 | |
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[aac75d3b] | 189 | #if defined(RTEMS_MULTIPROCESSING) |
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| 190 | _MPCI_Create_server(); |
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| 191 | #endif |
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[ac7d5ef0] | 192 | |
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[27b961a] | 193 | #if defined(FUNCTIONALITY_NOT_CURRENTLY_USED_BY_ANY_API) |
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| 194 | /* |
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| 195 | * Run the API and BSPs predriver hook. |
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| 196 | */ |
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| 197 | _API_extensions_Run_predriver(); |
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| 198 | #endif |
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[d86ae06] | 199 | } |
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[8486081] | 200 | |
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[d86ae06] | 201 | void rtems_initialize_device_drivers(void) |
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| 202 | { |
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[389fa850] | 203 | /* |
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| 204 | * Initialize all the device drivers and initialize the MPCI layer. |
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| 205 | * |
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| 206 | * NOTE: The MPCI may be build upon a device driver. |
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| 207 | */ |
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[8486081] | 208 | |
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[389fa850] | 209 | _IO_Initialize_all_drivers(); |
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[8486081] | 210 | |
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[aac75d3b] | 211 | #if defined(RTEMS_MULTIPROCESSING) |
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| 212 | if ( _System_state_Is_multiprocessing ) { |
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| 213 | _MPCI_Initialization(); |
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| 214 | _MPCI_Internal_packets_Send_process_packet( |
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| 215 | MPCI_PACKETS_SYSTEM_VERIFY |
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| 216 | ); |
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| 217 | } |
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| 218 | #endif |
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[8486081] | 219 | |
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[389fa850] | 220 | /* |
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| 221 | * Run the APIs and BSPs postdriver hooks. |
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| 222 | * |
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| 223 | * The API extensions are supposed to create user initialization tasks. |
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| 224 | */ |
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| 225 | _API_extensions_Run_postdriver(); |
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[ac7d5ef0] | 226 | } |
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| 227 | |
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[48bff53b] | 228 | void rtems_initialize_start_multitasking(void) |
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[ac7d5ef0] | 229 | { |
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[48bff53b] | 230 | uint32_t status; |
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| 231 | |
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[ac7d5ef0] | 232 | _System_state_Set( SYSTEM_STATE_BEGIN_MULTITASKING ); |
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| 233 | |
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[f972294d] | 234 | _Thread_Start_multitasking(); |
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[ac7d5ef0] | 235 | |
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[d86ae06] | 236 | /******************************************************************* |
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| 237 | ******************************************************************* |
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| 238 | ******************************************************************* |
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| 239 | ****** APPLICATION RUNS HERE ****** |
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| 240 | ****** RETURNS WHEN SYSTEM IS SHUT DOWN ****** |
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| 241 | ******************************************************************* |
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| 242 | ******************************************************************* |
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| 243 | *******************************************************************/ |
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[f58ef8ae] | 244 | |
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[48bff53b] | 245 | status = _Per_CPU_Information[0].idle->Wait.return_code; |
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| 246 | rtems_fatal( RTEMS_FATAL_SOURCE_EXIT, status ); |
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[ac7d5ef0] | 247 | } |
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