Mercurial > ecos
annotate packages/kernel/current/include/kapi.h @ 210:d2c90368aeef
Merge from eCos master repository on 2002-05-23-21:39:14-BST
| author | jlarmour |
|---|---|
| date | Thu, 23 May 2002 22:59:51 +0000 |
| parents | e0c0827131d1 |
| children | 9091c290be62 |
| rev | line source |
|---|---|
| 0 | 1 #ifndef CYGONCE_KERNEL_KAPI_H |
| 2 #define CYGONCE_KERNEL_KAPI_H | |
| 3 | |
| 4 /*========================================================================== | |
| 5 // | |
| 2 | 6 // kapi.h |
| 0 | 7 // |
| 2 | 8 // Native API for Kernel |
| 0 | 9 // |
| 10 //========================================================================== | |
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11 //####ECOSGPLCOPYRIGHTBEGIN#### |
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12 // ------------------------------------------- |
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13 // This file is part of eCos, the Embedded Configurable Operating System. |
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
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15 // |
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16 // eCos is free software; you can redistribute it and/or modify it under |
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17 // the terms of the GNU General Public License as published by the Free |
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18 // Software Foundation; either version 2 or (at your option) any later version. |
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19 // |
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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23 // for more details. |
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24 // |
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25 // You should have received a copy of the GNU General Public License along |
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26 // with eCos; if not, write to the Free Software Foundation, Inc., |
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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28 // |
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29 // As a special exception, if other files instantiate templates or use macros |
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30 // or inline functions from this file, or you compile this file and link it |
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31 // with other works to produce a work based on this file, this file does not |
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32 // by itself cause the resulting work to be covered by the GNU General Public |
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33 // License. However the source code for this file must still be made available |
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34 // in accordance with section (3) of the GNU General Public License. |
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35 // |
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36 // This exception does not invalidate any other reasons why a work based on |
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37 // this file might be covered by the GNU General Public License. |
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38 // |
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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40 // at http://sources.redhat.com/ecos/ecos-license/ |
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41 // ------------------------------------------- |
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42 //####ECOSGPLCOPYRIGHTEND#### |
| 0 | 43 //========================================================================== |
| 44 //#####DESCRIPTIONBEGIN#### | |
| 45 // | |
| 2 | 46 // Author(s): nickg, dsm |
| 47 // Contributors: nickg | |
| 48 // Date: 1998-03-02 | |
| 49 // Purpose: Native API for Kernel | |
| 50 // Description: This file describes the native API for using the kernel. | |
| 0 | 51 // It is essentially a set of C wrappers for the C++ class |
| 52 // member functions. | |
| 2 | 53 // Usage: #include <cyg/kernel/kapi.h> |
| 0 | 54 // |
| 55 //####DESCRIPTIONEND#### | |
| 56 // | |
| 57 //========================================================================*/ | |
| 58 | |
| 59 #include <pkgconf/kernel.h> | |
| 60 | |
| 61 #ifdef CYGFUN_KERNEL_API_C | |
| 62 #include <cyg/infra/cyg_type.h> | |
| 63 | |
| 64 /*---------------------------------------------------------------------------*/ | |
| 65 | |
| 66 #ifdef __cplusplus | |
| 67 extern "C" { | |
| 68 #endif | |
| 69 | |
| 70 /*---------------------------------------------------------------------------*/ | |
| 71 /* The following are derived types, they may have different */ | |
| 72 /* definitions from these depending on configuration. */ | |
| 73 | |
| 2 | 74 typedef CYG_ADDRWORD cyg_addrword_t; /* May hold pointer or word */ |
| 75 typedef cyg_addrword_t cyg_handle_t; /* Object handle */ | |
| 76 typedef cyg_uint32 cyg_priority_t; /* type for priorities */ | |
| 77 typedef cyg_int32 cyg_code_t; /* type for various codes */ | |
| 78 typedef cyg_uint32 cyg_vector_t; /* Interrupt vector id */ | |
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79 typedef cyg_uint32 cyg_cpu_t; /* CPU id type */ |
| 0 | 80 |
| 2 | 81 typedef cyg_uint64 cyg_tick_count_t; |
| 0 | 82 |
| 83 typedef int cyg_bool_t; | |
| 84 | |
| 85 /* Exception handler function definition */ | |
| 86 typedef void cyg_exception_handler_t( | |
| 87 cyg_addrword_t data, | |
| 88 cyg_code_t exception_number, | |
| 89 cyg_addrword_t info | |
| 90 ); | |
| 91 | |
| 92 /*---------------------------------------------------------------------------*/ | |
| 93 struct cyg_thread; | |
| 94 typedef struct cyg_thread cyg_thread; | |
| 95 | |
| 96 struct cyg_interrupt; | |
| 97 typedef struct cyg_interrupt cyg_interrupt; | |
| 98 | |
| 99 struct cyg_counter; | |
| 100 typedef struct cyg_counter cyg_counter; | |
| 101 | |
| 102 struct cyg_clock; | |
| 103 typedef struct cyg_clock cyg_clock; | |
| 104 | |
| 105 struct cyg_alarm; | |
| 106 typedef struct cyg_alarm cyg_alarm; | |
| 107 | |
| 108 struct cyg_mbox; | |
| 109 typedef struct cyg_mbox cyg_mbox; | |
| 110 | |
| 111 struct cyg_sem_t; | |
| 112 typedef struct cyg_sem_t cyg_sem_t; | |
| 113 | |
| 114 struct cyg_flag_t; | |
| 115 typedef struct cyg_flag_t cyg_flag_t; | |
| 116 | |
| 117 struct cyg_mutex_t; | |
| 118 typedef struct cyg_mutex_t cyg_mutex_t; | |
| 119 | |
| 120 struct cyg_cond_t; | |
| 121 typedef struct cyg_cond_t cyg_cond_t; | |
| 122 | |
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123 struct cyg_spinlock_t; |
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124 typedef struct cyg_spinlock_t cyg_spinlock_t; |
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125 |
| 0 | 126 /*---------------------------------------------------------------------------*/ |
| 127 /* Scheduler operations */ | |
| 128 | |
| 129 /* Starts scheduler with created threads. Never returns. */ | |
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130 void cyg_scheduler_start(void) CYGBLD_ATTRIB_NORET; |
| 0 | 131 |
| 132 /* Lock and unlock the scheduler. When the scheduler is */ | |
| 133 /* locked thread preemption is disabled. */ | |
| 134 void cyg_scheduler_lock(void); | |
| 135 | |
| 136 void cyg_scheduler_unlock(void); | |
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137 |
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138 /* Just like 'cyg_scheduler_lock()', but never take the lock higher than 1 */ |
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139 /* Thus this call is safe even if the scheduler is already locked and a */ |
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140 /* subsequent call to 'cyg_scheduler_unlock()' will completely unlock. */ |
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141 void cyg_scheduler_safe_lock(void); |
| 0 | 142 |
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143 /* Read the scheduler lock value. */ |
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144 cyg_ucount32 cyg_scheduler_read_lock(void); |
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145 |
| 0 | 146 /*---------------------------------------------------------------------------*/ |
| 147 /* Thread operations */ | |
| 148 | |
| 149 typedef void cyg_thread_entry_t(cyg_addrword_t); | |
| 150 | |
| 151 void cyg_thread_create( | |
| 2 | 152 cyg_addrword_t sched_info, /* scheduling info (eg pri) */ |
| 0 | 153 cyg_thread_entry_t *entry, /* entry point function */ |
| 2 | 154 cyg_addrword_t entry_data, /* entry data */ |
| 0 | 155 char *name, /* optional thread name */ |
| 156 void *stack_base, /* stack base, NULL = alloc */ | |
| 157 cyg_ucount32 stack_size, /* stack size, 0 = default */ | |
| 158 cyg_handle_t *handle, /* returned thread handle */ | |
| 159 cyg_thread *thread /* put thread here */ | |
| 160 ); | |
| 161 | |
| 162 void cyg_thread_exit(void); | |
| 163 | |
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164 /* It may be necessary to arrange for the victim to run for it to disappear */ |
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165 cyg_bool_t cyg_thread_delete(cyg_handle_t thread); /* false if NOT deleted */ |
| 0 | 166 |
| 167 void cyg_thread_suspend(cyg_handle_t thread); | |
| 168 | |
| 169 void cyg_thread_resume(cyg_handle_t thread); | |
| 170 | |
| 171 void cyg_thread_kill(cyg_handle_t thread); | |
| 172 | |
| 2 | 173 void cyg_thread_release(cyg_handle_t thread); |
| 0 | 174 |
| 175 void cyg_thread_yield(void); | |
| 176 | |
| 177 cyg_handle_t cyg_thread_self(void); | |
| 178 | |
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179 cyg_handle_t cyg_thread_idle_thread(void); |
| 0 | 180 |
| 181 /* Priority manipulation */ | |
| 182 | |
| 183 void cyg_thread_set_priority(cyg_handle_t thread, cyg_priority_t priority ); | |
| 184 | |
| 185 cyg_priority_t cyg_thread_get_priority(cyg_handle_t thread); | |
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186 cyg_priority_t cyg_thread_get_current_priority(cyg_handle_t thread); |
| 0 | 187 |
| 188 /* Deadline scheduling control (optional) */ | |
| 189 | |
| 190 void cyg_thread_deadline_wait( | |
| 191 cyg_tick_count_t start_time, /* abs earliest start time */ | |
| 192 cyg_tick_count_t run_time, /* worst case execution time */ | |
| 193 cyg_tick_count_t deadline /* absolute deadline */ | |
| 194 ); | |
| 195 | |
| 196 void cyg_thread_delay(cyg_tick_count_t delay); | |
| 197 | |
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198 /* Stack information */ |
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199 cyg_addrword_t cyg_thread_get_stack_base(cyg_handle_t thread); |
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200 |
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201 cyg_uint32 cyg_thread_get_stack_size(cyg_handle_t thread); |
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202 |
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203 #ifdef CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT |
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204 cyg_uint32 cyg_thread_measure_stack_usage(cyg_handle_t thread); |
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205 #endif |
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206 |
| 0 | 207 /*---------------------------------------------------------------------------*/ |
| 2 | 208 /* Per-thread Data */ |
| 209 | |
| 210 #ifdef CYGVAR_KERNEL_THREADS_DATA | |
| 211 | |
| 212 cyg_ucount32 cyg_thread_new_data_index(void); | |
| 213 | |
| 214 void cyg_thread_free_data_index(cyg_ucount32 index); | |
| 215 | |
| 216 CYG_ADDRWORD cyg_thread_get_data(cyg_ucount32 index); | |
| 217 | |
| 218 CYG_ADDRWORD *cyg_thread_get_data_ptr(cyg_ucount32 index); | |
| 219 | |
| 220 void cyg_thread_set_data(cyg_ucount32 index, CYG_ADDRWORD data); | |
| 221 | |
| 222 #endif | |
| 223 | |
| 224 /*---------------------------------------------------------------------------*/ | |
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225 /* Thread destructors */ |
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226 |
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227 #ifdef CYGPKG_KERNEL_THREADS_DESTRUCTORS |
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228 |
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229 typedef void (*cyg_thread_destructor_fn)(cyg_addrword_t); |
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230 |
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231 cyg_bool_t cyg_thread_add_destructor( cyg_thread_destructor_fn fn, |
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232 cyg_addrword_t data ); |
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233 cyg_bool_t cyg_thread_rem_destructor( cyg_thread_destructor_fn fn, |
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234 cyg_addrword_t data ); |
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235 #endif |
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236 |
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237 /*---------------------------------------------------------------------------*/ |
| 0 | 238 /* Exception handling. */ |
| 239 | |
| 240 /* Replace current exception handler, this may apply to either the */ | |
| 241 /* current thread, or to a global exception handler. The exception */ | |
| 242 /* number may be ignored, or used to specify a particular handler. */ | |
| 243 | |
| 244 void cyg_exception_set_handler( | |
| 245 cyg_code_t exception_number, | |
| 246 cyg_exception_handler_t *new_handler, | |
| 247 cyg_addrword_t new_data, | |
| 248 cyg_exception_handler_t **old_handler, | |
| 249 cyg_addrword_t *old_data | |
| 250 ); | |
| 251 | |
| 252 /* Clear exception hander to default value */ | |
| 253 void cyg_exception_clear_handler( | |
| 254 cyg_code_t exception_number | |
| 255 ); | |
| 256 | |
| 257 /* Invoke exception handler */ | |
| 258 void cyg_exception_call_handler( | |
| 259 cyg_handle_t thread, | |
| 260 cyg_code_t exception_number, | |
| 2 | 261 cyg_addrword_t exception_info |
| 0 | 262 ); |
| 263 | |
| 264 | |
| 265 /*---------------------------------------------------------------------------*/ | |
| 266 /* Interrupt handling */ | |
| 267 typedef void cyg_VSR_t(void); | |
| 268 typedef cyg_uint32 cyg_ISR_t(cyg_vector_t vector, cyg_addrword_t data); | |
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269 typedef void cyg_DSR_t( cyg_vector_t vector, |
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270 cyg_ucount32 count, |
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271 cyg_addrword_t data); |
| 0 | 272 |
| 273 | |
| 274 enum cyg_ISR_results | |
| 275 { | |
| 276 CYG_ISR_HANDLED = 1, /* Interrupt was handled */ | |
| 277 CYG_ISR_CALL_DSR = 2 /* Schedule DSR */ | |
| 278 }; | |
| 279 | |
| 280 void cyg_interrupt_create( | |
| 281 cyg_vector_t vector, /* Vector to attach to */ | |
| 282 cyg_priority_t priority, /* Queue priority */ | |
| 2 | 283 cyg_addrword_t data, /* Data pointer */ |
| 0 | 284 cyg_ISR_t *isr, /* Interrupt Service Routine */ |
| 285 cyg_DSR_t *dsr, /* Deferred Service Routine */ | |
| 286 cyg_handle_t *handle, /* returned handle */ | |
| 287 cyg_interrupt *intr /* put interrupt here */ | |
| 288 ); | |
| 289 | |
| 290 void cyg_interrupt_delete( cyg_handle_t interrupt ); | |
| 291 | |
| 292 void cyg_interrupt_attach( cyg_handle_t interrupt ); | |
| 293 | |
| 294 void cyg_interrupt_detach( cyg_handle_t interrupt ); | |
| 295 | |
| 296 /* VSR manipulation */ | |
| 297 | |
| 298 void cyg_interrupt_get_vsr( | |
| 299 cyg_vector_t vector, /* vector to get */ | |
| 300 cyg_VSR_t **vsr /* vsr got */ | |
| 301 ); | |
| 302 | |
| 303 void cyg_interrupt_set_vsr( | |
| 304 cyg_vector_t vector, /* vector to set */ | |
| 305 cyg_VSR_t *vsr /* vsr to set */ | |
| 306 ); | |
| 307 | |
| 308 /* CPU level interrupt mask */ | |
| 309 void cyg_interrupt_disable(void); | |
| 310 | |
| 311 void cyg_interrupt_enable(void); | |
| 312 | |
| 313 /* Interrupt controller access */ | |
| 314 void cyg_interrupt_mask(cyg_vector_t vector); | |
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315 void cyg_interrupt_mask_intunsafe(cyg_vector_t vector); |
| 0 | 316 |
| 317 void cyg_interrupt_unmask(cyg_vector_t vector); | |
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318 void cyg_interrupt_unmask_intunsafe(cyg_vector_t vector); |
| 0 | 319 |
| 320 void cyg_interrupt_acknowledge(cyg_vector_t vector); | |
| 321 | |
| 322 void cyg_interrupt_configure( | |
| 323 cyg_vector_t vector, /* vector to configure */ | |
| 324 cyg_bool_t level, /* level or edge triggered */ | |
| 325 cyg_bool_t up /* rising/faling edge, high/low level*/ | |
| 326 ); | |
| 327 | |
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328 void cyg_interrupt_set_cpu( |
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329 cyg_vector_t vector, /* vector to control */ |
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330 cyg_cpu_t cpu /* CPU to set */ |
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331 ); |
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332 |
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333 cyg_cpu_t cyg_interrupt_get_cpu( |
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334 cyg_vector_t vector /* vector to control */ |
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335 ); |
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336 |
| 0 | 337 /*---------------------------------------------------------------------------*/ |
| 338 /* Counters, Clocks and Alarms */ | |
| 339 | |
| 340 void cyg_counter_create( | |
| 341 cyg_handle_t *handle, /* returned counter handle */ | |
| 342 cyg_counter *counter /* put counter here */ | |
| 343 ); | |
| 344 | |
| 345 void cyg_counter_delete(cyg_handle_t counter); | |
| 346 | |
| 347 /* Return current value of counter */ | |
| 348 cyg_tick_count_t cyg_counter_current_value(cyg_handle_t counter); | |
| 349 | |
| 350 /* Set new current value */ | |
| 351 void cyg_counter_set_value( | |
| 352 cyg_handle_t counter, | |
| 353 cyg_tick_count_t new_value | |
| 354 ); | |
| 355 | |
| 356 /* Advance counter by one tick */ | |
| 357 void cyg_counter_tick(cyg_handle_t counter); | |
| 358 | |
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359 /* Advance counter by multiple ticks */ |
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360 void cyg_counter_multi_tick(cyg_handle_t counter, cyg_tick_count_t ticks); |
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361 |
| 0 | 362 |
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363 #define CYG_RESOLUTION_T_MEMBERS \ |
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364 cyg_uint32 dividend; \ |
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365 cyg_uint32 divisor; |
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366 |
| 0 | 367 typedef struct |
| 368 { | |
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369 CYG_RESOLUTION_T_MEMBERS |
| 0 | 370 } cyg_resolution_t; |
| 371 | |
| 372 /* Create a clock object */ | |
| 373 void cyg_clock_create( | |
| 374 cyg_resolution_t resolution, /* Initial resolution */ | |
| 375 cyg_handle_t *handle, /* Returned clock handle */ | |
| 376 cyg_clock *clock /* put clock here */ | |
| 377 ); | |
| 378 | |
| 379 void cyg_clock_delete(cyg_handle_t clock); | |
| 380 | |
| 381 /* convert a clock handle to a counter handle so we can use the */ | |
| 382 /* counter API on it. */ | |
| 383 void cyg_clock_to_counter( | |
| 384 cyg_handle_t clock, | |
| 385 cyg_handle_t *counter | |
| 386 ); | |
| 387 | |
| 388 void cyg_clock_set_resolution( | |
| 389 cyg_handle_t clock, | |
| 390 cyg_resolution_t resolution /* New resolution */ | |
| 391 ); | |
| 392 | |
| 393 cyg_resolution_t cyg_clock_get_resolution(cyg_handle_t clock); | |
| 394 | |
| 395 /* handle of real time clock */ | |
| 396 cyg_handle_t cyg_real_time_clock(void); | |
| 397 | |
| 398 /* returns value of real time clock's counter. | |
| 399 This is the same as: | |
| 400 (cyg_clock_to_counter(cyg_real_time_clock(), &h), | |
| 401 cyg_counter_current_value(h)) */ | |
| 402 cyg_tick_count_t cyg_current_time(void); | |
| 403 | |
| 404 /* Alarm handler function */ | |
| 405 typedef void cyg_alarm_t(cyg_handle_t alarm, cyg_addrword_t data); | |
| 406 | |
| 407 void cyg_alarm_create( | |
| 408 cyg_handle_t counter, /* Attached to this counter */ | |
| 409 cyg_alarm_t *alarmfn, /* Call-back function */ | |
| 2 | 410 cyg_addrword_t data, /* Call-back data */ |
| 0 | 411 cyg_handle_t *handle, /* Returned alarm object */ |
| 412 cyg_alarm *alarm /* put alarm here */ | |
| 413 ); | |
| 414 | |
| 415 /* Disable alarm, detach from counter and invalidate handles */ | |
| 416 void cyg_alarm_delete( cyg_handle_t alarm); | |
| 417 | |
| 418 void cyg_alarm_initialize( | |
| 419 cyg_handle_t alarm, | |
| 420 cyg_tick_count_t trigger, /* Absolute trigger time */ | |
| 421 cyg_tick_count_t interval /* Relative retrigger interval */ | |
| 422 ); | |
| 423 | |
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424 void cyg_alarm_get_times( |
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425 cyg_handle_t alarm, |
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426 cyg_tick_count_t *trigger, /* Next trigger time */ |
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427 cyg_tick_count_t *interval /* Current interval */ |
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428 ); |
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429 |
| 0 | 430 void cyg_alarm_enable( cyg_handle_t alarm ); |
| 431 | |
| 432 void cyg_alarm_disable( cyg_handle_t alarm ); | |
| 433 | |
| 434 /*---------------------------------------------------------------------------*/ | |
| 435 /* Mail boxes */ | |
| 436 void cyg_mbox_create( | |
| 437 cyg_handle_t *handle, | |
| 438 cyg_mbox *mbox | |
| 439 ); | |
| 440 | |
| 441 void cyg_mbox_delete(cyg_handle_t mbox); | |
| 442 | |
| 443 void *cyg_mbox_get(cyg_handle_t mbox); | |
| 444 | |
| 445 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 446 void *cyg_mbox_timed_get( | |
| 447 cyg_handle_t mbox, | |
| 448 cyg_tick_count_t abstime | |
| 449 ); | |
| 450 #endif | |
| 451 | |
| 452 void *cyg_mbox_tryget(cyg_handle_t mbox); | |
| 453 | |
| 454 void *cyg_mbox_peek_item(cyg_handle_t mbox); | |
| 455 | |
| 456 #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT | |
| 457 cyg_bool_t cyg_mbox_put(cyg_handle_t mbox, void *item); | |
| 458 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 459 cyg_bool_t cyg_mbox_timed_put( | |
| 460 cyg_handle_t mbox, | |
| 461 void *item, | |
| 462 cyg_tick_count_t abstime | |
| 463 ); | |
| 464 #endif | |
| 465 #endif | |
| 466 | |
| 467 cyg_bool_t cyg_mbox_tryput(cyg_handle_t mbox, void *item); | |
| 468 | |
| 469 cyg_count32 cyg_mbox_peek(cyg_handle_t mbox); | |
| 470 | |
| 471 cyg_bool_t cyg_mbox_waiting_to_get(cyg_handle_t mbox); | |
| 472 | |
| 473 cyg_bool_t cyg_mbox_waiting_to_put(cyg_handle_t mbox); | |
| 474 | |
| 475 | |
| 476 /*-----------------------------------------------------------------------*/ | |
| 477 /* Memory pools */ | |
| 478 | |
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479 /* These definitions are found in the "memalloc" package as this is */ |
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480 /* where the implementation lives. */ |
| 0 | 481 |
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482 #include <cyg/memalloc/kapi.h> |
| 0 | 483 |
| 484 /*---------------------------------------------------------------------------*/ | |
| 485 /* Semaphores */ | |
| 486 | |
| 487 void cyg_semaphore_init( | |
| 488 cyg_sem_t *sem, /* Semaphore to init */ | |
| 2 | 489 cyg_count32 val /* Initial semaphore value */ |
| 0 | 490 ); |
| 491 | |
| 492 void cyg_semaphore_destroy( cyg_sem_t *sem ); | |
| 493 | |
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494 cyg_bool_t cyg_semaphore_wait( cyg_sem_t *sem ); |
| 0 | 495 |
| 496 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 497 cyg_bool_t cyg_semaphore_timed_wait( | |
| 498 cyg_sem_t *sem, | |
| 499 cyg_tick_count_t abstime | |
| 500 ); | |
| 501 #endif | |
| 502 | |
| 503 cyg_bool_t cyg_semaphore_trywait( cyg_sem_t *sem ); | |
| 504 | |
| 505 void cyg_semaphore_post( cyg_sem_t *sem ); | |
| 506 | |
| 2 | 507 void cyg_semaphore_peek( cyg_sem_t *sem, cyg_count32 *val ); |
| 0 | 508 |
| 509 /*---------------------------------------------------------------------------*/ | |
| 510 /* Flags */ | |
| 511 | |
| 512 typedef cyg_uint32 cyg_flag_value_t; | |
| 513 typedef cyg_uint8 cyg_flag_mode_t; | |
| 514 #define CYG_FLAG_WAITMODE_AND ((cyg_flag_mode_t)0) /* all bits must be set */ | |
| 515 #define CYG_FLAG_WAITMODE_OR ((cyg_flag_mode_t)2) /* any bit must be set */ | |
| 516 #define CYG_FLAG_WAITMODE_CLR ((cyg_flag_mode_t)1) /* clear when satisfied */ | |
| 517 | |
| 518 void cyg_flag_init( | |
| 519 cyg_flag_t *flag /* Flag to init */ | |
| 520 ); | |
| 521 | |
| 522 void cyg_flag_destroy( cyg_flag_t *flag ); | |
| 523 | |
| 524 /* bitwise-or in the bits in value; awaken any waiting tasks whose | |
| 525 condition is now satisfied */ | |
| 526 void cyg_flag_setbits( cyg_flag_t *flag, cyg_flag_value_t value); | |
| 527 | |
| 528 /* bitwise-and with the the bits in value; this clears the bits which | |
| 529 are not set in value. No waiting task can be awoken. */ | |
| 530 void cyg_flag_maskbits( cyg_flag_t *flag, cyg_flag_value_t value); | |
| 531 | |
| 532 /* wait for the flag value to match the pattern, according to the mode. | |
| 533 If mode includes CLR, set the flag value to zero when | |
| 534 our pattern is matched. The return value is that which matched | |
| 535 the request, or zero for an error/timeout return. | |
| 536 Value must not itself be zero. */ | |
| 537 cyg_flag_value_t cyg_flag_wait( cyg_flag_t *flag, | |
| 538 cyg_flag_value_t pattern, | |
| 539 cyg_flag_mode_t mode ); | |
| 540 | |
| 541 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 542 cyg_flag_value_t cyg_flag_timed_wait( cyg_flag_t *flag, | |
| 543 cyg_flag_value_t pattern, | |
| 544 cyg_flag_mode_t mode, | |
| 545 cyg_tick_count_t abstime ); | |
| 546 | |
| 547 #endif | |
| 548 | |
| 549 cyg_flag_value_t cyg_flag_poll( cyg_flag_t *flag, | |
| 550 cyg_flag_value_t pattern, | |
| 551 cyg_flag_mode_t mode ); | |
| 552 | |
| 553 cyg_flag_value_t cyg_flag_peek( cyg_flag_t *flag ); | |
| 554 | |
| 555 cyg_bool_t cyg_flag_waiting( cyg_flag_t *flag ); | |
| 556 | |
| 557 /*---------------------------------------------------------------------------*/ | |
| 558 /* Mutex */ | |
| 559 | |
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560 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC |
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561 enum cyg_mutex_protocol |
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562 { |
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563 CYG_MUTEX_NONE = 0, // no inversion protocol |
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564 CYG_MUTEX_INHERIT, // priority inheritance protocol |
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565 CYG_MUTEX_CEILING // priority ceiling protocol |
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566 }; |
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567 #endif |
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568 |
| 0 | 569 void cyg_mutex_init( |
| 570 cyg_mutex_t *mutex /* Mutex to init */ | |
| 571 ); | |
| 572 | |
| 573 void cyg_mutex_destroy( cyg_mutex_t *mutex ); | |
| 574 | |
| 2 | 575 cyg_bool_t cyg_mutex_lock( cyg_mutex_t *mutex ); |
| 0 | 576 |
| 577 cyg_bool_t cyg_mutex_trylock( cyg_mutex_t *mutex ); | |
| 578 | |
| 579 void cyg_mutex_unlock( cyg_mutex_t *mutex ); | |
| 580 | |
| 2 | 581 void cyg_mutex_release( cyg_mutex_t *mutex ); |
| 582 | |
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583 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING |
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584 void cyg_mutex_set_ceiling( cyg_mutex_t *mutex, cyg_priority_t priority ); |
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585 #endif |
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586 |
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587 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC |
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588 void cyg_mutex_set_protocol ( cyg_mutex_t *mutex, enum cyg_mutex_protocol protocol ); |
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589 #endif |
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590 |
| 0 | 591 /*---------------------------------------------------------------------------*/ |
| 592 /* Condition Variables */ | |
| 593 | |
| 594 void cyg_cond_init( | |
| 595 cyg_cond_t *cond, /* condition variable to init */ | |
| 596 cyg_mutex_t *mutex /* associated mutex */ | |
| 597 ); | |
| 598 | |
| 599 void cyg_cond_destroy( cyg_cond_t *cond ); | |
| 600 | |
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601 cyg_bool_t cyg_cond_wait( cyg_cond_t *cond ); |
| 0 | 602 |
| 603 void cyg_cond_signal( cyg_cond_t *cond ); | |
| 604 | |
| 605 void cyg_cond_broadcast( cyg_cond_t *cond ); | |
| 606 | |
| 607 #ifdef CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT | |
| 608 cyg_bool_t cyg_cond_timed_wait( | |
| 609 cyg_cond_t *cond, | |
| 610 cyg_tick_count_t abstime | |
| 611 ); | |
| 612 #endif | |
| 613 | |
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614 /*---------------------------------------------------------------------------*/ |
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615 /* Spinlocks */ |
| 0 | 616 |
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617 void cyg_spinlock_init( |
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618 cyg_spinlock_t *lock, /* spinlock to initialize */ |
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619 cyg_bool_t locked /* init locked or unlocked */ |
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620 ); |
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621 |
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622 void cyg_spinlock_destroy( cyg_spinlock_t *lock ); |
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623 |
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624 void cyg_spinlock_spin( cyg_spinlock_t *lock ); |
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625 |
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626 void cyg_spinlock_clear( cyg_spinlock_t *lock ); |
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627 |
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628 cyg_bool_t cyg_spinlock_try( cyg_spinlock_t *lock ); |
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629 |
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630 cyg_bool_t cyg_spinlock_test( cyg_spinlock_t *lock ); |
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631 |
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632 void cyg_spinlock_spin_intsave( cyg_spinlock_t *lock, |
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633 cyg_addrword_t *istate ); |
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634 |
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635 void cyg_spinlock_clear_intsave( cyg_spinlock_t *lock, |
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636 cyg_addrword_t istate ); |
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637 |
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638 /*---------------------------------------------------------------------------*/ |
| 0 | 639 #ifdef __cplusplus |
| 640 } | |
| 641 #endif | |
| 642 | |
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643 /*---------------------------------------------------------------------------*/ |
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644 |
| 0 | 645 #include <cyg/kernel/kapidata.h> |
| 646 | |
| 647 /*---------------------------------------------------------------------------*/ | |
| 648 /* EOF kapi.h */ | |
| 649 #endif /* CYGFUN_KERNEL_API_C */ | |
| 650 #endif /* CYGONCE_KERNEL_KAPI_H */ |
