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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 | /* * Copyright (c) 2013-2017 ARM Limited. All rights reserved. * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the License); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ---------------------------------------------------------------------- * * $Date: 30. October 2017 * $Revision: V2.1.2 * * Project: CMSIS-RTOS2 API * Title: cmsis_os2.h header file * * Version 2.1.2 * Additional functions allowed to be called from Interrupt Service Routines: * - osKernelGetInfo, osKernelGetState * Version 2.1.1 * Additional functions allowed to be called from Interrupt Service Routines: * - osKernelGetTickCount, osKernelGetTickFreq * Changed Kernel Tick type to uint32_t: * - updated: osKernelGetTickCount, osDelayUntil * Version 2.1.0 * Support for critical and uncritical sections (nesting safe): * - updated: osKernelLock, osKernelUnlock * - added: osKernelRestoreLock * Updated Thread and Event Flags: * - changed flags parameter and return type from int32_t to uint32_t * Version 2.0.0 * Initial Release *---------------------------------------------------------------------------*/ #ifndef CMSIS_OS2_H_ #define CMSIS_OS2_H_ #ifndef __NO_RETURN #if defined(__CC_ARM) #define __NO_RETURN __declspec(noreturn) #elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) #define __NO_RETURN __attribute__((__noreturn__)) #elif defined(__GNUC__) #define __NO_RETURN __attribute__((__noreturn__)) #elif defined(__ICCARM__) #define __NO_RETURN __noreturn #else #define __NO_RETURN #endif #endif #include <stdint.h> #include <stddef.h> #ifdef __cplusplus extern "C" { #endif /* ==== Enumerations, structures, defines ==== */ /* / Version information. */ typedef struct { uint32_t api; /* /< API version (major.minor.rev: mmnnnrrrr dec). */ uint32_t kernel; /* /< Kernel version (major.minor.rev: mmnnnrrrr dec). */ } osVersion_t; /* / Kernel state. */ typedef enum { osKernelInactive = 0, /* /< Inactive. */ osKernelReady = 1, /* /< Ready. */ osKernelRunning = 2, /* /< Running. */ osKernelLocked = 3, /* /< Locked. */ osKernelSuspended = 4, /* /< Suspended. */ osKernelError = -1, /* /< Error. */ osKernelReserved = 0x7FFFFFFFU /* /< Prevents enum down-size compiler optimization. */ } osKernelState_t; /* / Thread state. */ typedef enum { osThreadInactive = 0, /* /< Inactive. */ osThreadReady = 1, /* /< Ready. */ osThreadRunning = 2, /* /< Running. */ osThreadBlocked = 3, /* /< Blocked. */ osThreadTerminated = 4, /* /< Terminated. */ osThreadError = -1, /* /< Error. */ osThreadReserved = 0x7FFFFFFF /* /< Prevents enum down-size compiler optimization. */ } osThreadState_t; /* / Priority values. */ typedef enum { osPriorityNone = 0, /* /< No priority (not initialized). */ osPriorityIdle = 1, /* /< Reserved for Idle thread. */ osPriorityLow = 8, /* /< Priority: low */ osPriorityLow1 = 8+1, /* /< Priority: low + 1 */ osPriorityLow2 = 8+2, /* /< Priority: low + 2 */ osPriorityLow3 = 8+3, /* /< Priority: low + 3 */ osPriorityLow4 = 8+4, /* /< Priority: low + 4 */ osPriorityLow5 = 8+5, /* /< Priority: low + 5 */ osPriorityLow6 = 8+6, /* /< Priority: low + 6 */ osPriorityLow7 = 8+7, /* /< Priority: low + 7 */ osPriorityBelowNormal = 16, /* /< Priority: below normal */ osPriorityBelowNormal1 = 16+1, /* /< Priority: below normal + 1 */ osPriorityBelowNormal2 = 16+2, /* /< Priority: below normal + 2 */ osPriorityBelowNormal3 = 16+3, /* /< Priority: below normal + 3 */ osPriorityBelowNormal4 = 16+4, /* /< Priority: below normal + 4 */ osPriorityBelowNormal5 = 16+5, /* /< Priority: below normal + 5 */ osPriorityBelowNormal6 = 16+6, /* /< Priority: below normal + 6 */ osPriorityBelowNormal7 = 16+7, /* /< Priority: below normal + 7 */ osPriorityNormal = 24, /* /< Priority: normal */ osPriorityNormal1 = 24+1, /* /< Priority: normal + 1 */ osPriorityNormal2 = 24+2, /* /< Priority: normal + 2 */ osPriorityNormal3 = 24+3, /* /< Priority: normal + 3 */ osPriorityNormal4 = 24+4, /* /< Priority: normal + 4 */ osPriorityNormal5 = 24+5, /* /< Priority: normal + 5 */ osPriorityNormal6 = 24+6, /* /< Priority: normal + 6 */ osPriorityNormal7 = 24+7, /* /< Priority: normal + 7 */ osPriorityAboveNormal = 32, /* /< Priority: above normal */ osPriorityAboveNormal1 = 32+1, /* /< Priority: above normal + 1 */ osPriorityAboveNormal2 = 32+2, /* /< Priority: above normal + 2 */ osPriorityAboveNormal3 = 32+3, /* /< Priority: above normal + 3 */ osPriorityAboveNormal4 = 32+4, /* /< Priority: above normal + 4 */ osPriorityAboveNormal5 = 32+5, /* /< Priority: above normal + 5 */ osPriorityAboveNormal6 = 32+6, /* /< Priority: above normal + 6 */ osPriorityAboveNormal7 = 32+7, /* /< Priority: above normal + 7 */ osPriorityHigh = 40, /* /< Priority: high */ osPriorityHigh1 = 40+1, /* /< Priority: high + 1 */ osPriorityHigh2 = 40+2, /* /< Priority: high + 2 */ osPriorityHigh3 = 40+3, /* /< Priority: high + 3 */ osPriorityHigh4 = 40+4, /* /< Priority: high + 4 */ osPriorityHigh5 = 40+5, /* /< Priority: high + 5 */ osPriorityHigh6 = 40+6, /* /< Priority: high + 6 */ osPriorityHigh7 = 40+7, /* /< Priority: high + 7 */ osPriorityRealtime = 48, /* /< Priority: realtime */ osPriorityRealtime1 = 48+1, /* /< Priority: realtime + 1 */ osPriorityRealtime2 = 48+2, /* /< Priority: realtime + 2 */ osPriorityRealtime3 = 48+3, /* /< Priority: realtime + 3 */ osPriorityRealtime4 = 48+4, /* /< Priority: realtime + 4 */ osPriorityRealtime5 = 48+5, /* /< Priority: realtime + 5 */ osPriorityRealtime6 = 48+6, /* /< Priority: realtime + 6 */ osPriorityRealtime7 = 48+7, /* /< Priority: realtime + 7 */ osPriorityISR = 56, /* /< Reserved for ISR deferred thread. */ osPriorityError = -1, /* /< System cannot determine priority or illegal priority. */ osPriorityReserved = 0x7FFFFFFF /* /< Prevents enum down-size compiler optimization. */ } osPriority_t; /* / Entry point of a thread. */ typedef void (*osThreadFunc_t) (void *argument); /* / Timer callback function. */ typedef void (*osTimerFunc_t) (void *argument); /* / Timer type. */ typedef enum { osTimerOnce = 0, /* /< One-shot timer. */ osTimerPeriodic = 1 /* /< Repeating timer. */ } osTimerType_t; /* Timeout value. */ #define osWaitForever 0xFFFFFFFFU /* /< Wait forever timeout value. */ /* Flags options (\ref osThreadFlagsWait and \ref osEventFlagsWait). */ #define osFlagsWaitAny 0x00000000U /* /< Wait for any flag (default). */ #define osFlagsWaitAll 0x00000001U /* /< Wait for all flags. */ #define osFlagsNoClear 0x00000002U /* /< Do not clear flags which have been specified to wait for. */ /* Flags errors (returned by osThreadFlagsXxxx and osEventFlagsXxxx). */ #define osFlagsError 0x80000000U /* /< Error indicator. */ #define osFlagsErrorUnknown 0xFFFFFFFFU /* /< osError (-1). */ #define osFlagsErrorTimeout 0xFFFFFFFEU /* /< osErrorTimeout (-2). */ #define osFlagsErrorResource 0xFFFFFFFDU /* /< osErrorResource (-3). */ #define osFlagsErrorParameter 0xFFFFFFFCU /* /< osErrorParameter (-4). */ #define osFlagsErrorISR 0xFFFFFFFAU /* /< osErrorISR (-6). */ /* Thread attributes (attr_bits in \ref osThreadAttr_t). */ #define osThreadDetached 0x00000000U /* /< Thread created in detached mode (default) */ #define osThreadJoinable 0x00000001U /* /< Thread created in joinable mode */ /* Mutex attributes (attr_bits in \ref osMutexAttr_t). */ #define osMutexRecursive 0x00000001U /* /< Recursive mutex. */ #define osMutexPrioInherit 0x00000002U /* /< Priority inherit protocol. */ #define osMutexRobust 0x00000008U /* /< Robust mutex. */ /* / Status code values returned by CMSIS-RTOS functions. */ typedef enum { osOK = 0, /* /< Operation completed successfully. */ osError = -1, /* /< Unspecified RTOS error: run-time error but no other error message fits. */ osErrorTimeout = -2, /* /< Operation not completed within the timeout period. */ osErrorResource = -3, /* /< Resource not available. */ osErrorParameter = -4, /* /< Parameter error. */ osErrorNoMemory = -5, /* /< System is out of memory: it was impossible to allocate or reserve memory for the operation. */ osErrorISR = -6, /* /< Not allowed in ISR context: the function cannot be called from interrupt service routines. */ osStatusReserved = 0x7FFFFFFF /* /< Prevents enum down-size compiler optimization. */ } osStatus_t; /* / \details Thread ID identifies the thread. */ typedef void *osThreadId_t; /* / \details Timer ID identifies the timer. */ typedef void *osTimerId_t; /* / \details Event Flags ID identifies the event flags. */ typedef void *osEventFlagsId_t; /* / \details Mutex ID identifies the mutex. */ typedef void *osMutexId_t; /* / \details Semaphore ID identifies the semaphore. */ typedef void *osSemaphoreId_t; /* / \details Memory Pool ID identifies the memory pool. */ typedef void *osMemoryPoolId_t; /* / \details Message Queue ID identifies the message queue. */ typedef void *osMessageQueueId_t; #ifndef TZ_MODULEID_T #define TZ_MODULEID_T /* / \details Data type that identifies secure software modules called by a process. */ typedef uint32_t TZ_ModuleId_t; #endif /* / Attributes structure for thread. */ typedef struct { const char *name; /* /< name of the thread */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ void *stack_mem; /* /< memory for stack */ uint32_t stack_size; /* /< size of stack */ osPriority_t priority; /* /< initial thread priority (default: osPriorityNormal) */ TZ_ModuleId_t tz_module; /* /< TrustZone module identifier */ uint32_t reserved; /* /< reserved (must be 0) */ } osThreadAttr_t; /* / Attributes structure for timer. */ typedef struct { const char *name; /* /< name of the timer */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ } osTimerAttr_t; /* / Attributes structure for event flags. */ typedef struct { const char *name; /* /< name of the event flags */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ } osEventFlagsAttr_t; /* / Attributes structure for mutex. */ typedef struct { const char *name; /* /< name of the mutex */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ } osMutexAttr_t; /* / Attributes structure for semaphore. */ typedef struct { const char *name; /* /< name of the semaphore */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ } osSemaphoreAttr_t; /* / Attributes structure for memory pool. */ typedef struct { const char *name; /* /< name of the memory pool */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ void *mp_mem; /* /< memory for data storage */ uint32_t mp_size; /* /< size of provided memory for data storage */ } osMemoryPoolAttr_t; /* / Attributes structure for message queue. */ typedef struct { const char *name; /* /< name of the message queue */ uint32_t attr_bits; /* /< attribute bits */ void *cb_mem; /* /< memory for control block */ uint32_t cb_size; /* /< size of provided memory for control block */ void *mq_mem; /* /< memory for data storage */ uint32_t mq_size; /* /< size of provided memory for data storage */ } osMessageQueueAttr_t; /* ==== Kernel Management Functions ==== */ /* / Initialize the RTOS Kernel. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osKernelInitialize(void); /* / Get RTOS Kernel Information. */ /* / \param[out] version pointer to buffer for retrieving version information. */ /* / \param[out] id_buf pointer to buffer for retrieving kernel identification string. */ /* / \param[in] id_size size of buffer for kernel identification string. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osKernelGetInfo(osVersion_t *version, char *id_buf, uint32_t id_size); /* / Get the current RTOS Kernel state. */ /* / \return current RTOS Kernel state. */ osKernelState_t osKernelGetState(void); /* / Start the RTOS Kernel scheduler. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osKernelStart(void); /* / Lock the RTOS Kernel scheduler. */ /* / \return previous lock state (1 - locked, 0 - not locked, error code if negative). */ int32_t osKernelLock(void); /* / Unlock the RTOS Kernel scheduler. */ /* / \return previous lock state (1 - locked, 0 - not locked, error code if negative). */ int32_t osKernelUnlock(void); /* / Restore the RTOS Kernel scheduler lock state. */ /* / \param[in] lock lock state obtained by \ref osKernelLock or \ref osKernelUnlock. */ /* / \return new lock state (1 - locked, 0 - not locked, error code if negative). */ int32_t osKernelRestoreLock(int32_t lock); /* / Suspend the RTOS Kernel scheduler. */ /* / \return time in ticks, for how long the system can sleep or power-down. */ uint32_t osKernelSuspend(void); /* / Resume the RTOS Kernel scheduler. */ /* / \param[in] sleep_ticks time in ticks for how long the system was in sleep or power-down mode. */ void osKernelResume(uint32_t sleep_ticks); /* / Get the RTOS kernel tick count. */ /* / \return RTOS kernel current tick count. */ uint32_t osKernelGetTickCount(void); /* / Get the RTOS kernel tick frequency. */ /* / \return frequency of the kernel tick in hertz, i.e. kernel ticks per second. */ uint32_t osKernelGetTickFreq(void); /* / Get the RTOS kernel system timer count. */ /* / \return RTOS kernel current system timer count as 32-bit value. */ uint32_t osKernelGetSysTimerCount(void); /* / Get the RTOS kernel system timer frequency. */ /* / \return frequency of the system timer in hertz, i.e. timer ticks per second. */ uint32_t osKernelGetSysTimerFreq(void); /* ==== Thread Management Functions ==== */ /* / Create a thread and add it to Active Threads. */ /* / \param[in] func thread function. */ /* / \param[in] argument pointer that is passed to the thread function as start argument. */ /* / \param[in] attr thread attributes; NULL: default values. */ /* / \return thread ID for reference by other functions or NULL in case of error. */ osThreadId_t osThreadNew(osThreadFunc_t func, void *argument, const osThreadAttr_t *attr); /* / Get name of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return name as NULL terminated string. */ const char *osThreadGetName(osThreadId_t thread_id); /* / Return the thread ID of the current running thread. */ /* / \return thread ID for reference by other functions or NULL in case of error. */ osThreadId_t osThreadGetId(void); /* / Get current thread state of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return current thread state of the specified thread. */ osThreadState_t osThreadGetState(osThreadId_t thread_id); /* / Get stack size of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return stack size in bytes. */ uint32_t osThreadGetStackSize(osThreadId_t thread_id); /* / Get available stack space of a thread based on stack watermark recording during execution. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return remaining stack space in bytes. */ uint32_t osThreadGetStackSpace(osThreadId_t thread_id); /* / Change priority of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \param[in] priority new priority value for the thread function. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadSetPriority(osThreadId_t thread_id, osPriority_t priority); /* / Get current priority of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return current priority value of the specified thread. */ osPriority_t osThreadGetPriority(osThreadId_t thread_id); /* / Pass control to next thread that is in state \b READY. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadYield(void); /* / Suspend execution of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadSuspend(osThreadId_t thread_id); /* / Resume execution of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadResume(osThreadId_t thread_id); /* / Detach a thread (thread storage can be reclaimed when thread terminates). */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadDetach(osThreadId_t thread_id); /* / Wait for specified thread to terminate. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadJoin(osThreadId_t thread_id); /* / Terminate execution of current running thread. */ __NO_RETURN void osThreadExit(void); /* / Terminate execution of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osThreadTerminate(osThreadId_t thread_id); /* / Get number of active threads. */ /* / \return number of active threads. */ uint32_t osThreadGetCount(void); /* / Enumerate active threads. */ /* / \param[out] thread_array pointer to array for retrieving thread IDs. */ /* / \param[in] array_items maximum number of items in array for retrieving thread IDs. */ /* / \return number of enumerated threads. */ uint32_t osThreadEnumerate(osThreadId_t *thread_array, uint32_t array_items); /* ==== Thread Flags Functions ==== */ /* / Set the specified Thread Flags of a thread. */ /* / \param[in] thread_id thread ID obtained by \ref osThreadNew or \ref osThreadGetId. */ /* / \param[in] flags specifies the flags of the thread that shall be set. */ /* / \return thread flags after setting or error code if highest bit set. */ uint32_t osThreadFlagsSet(osThreadId_t thread_id, uint32_t flags); /* / Clear the specified Thread Flags of current running thread. */ /* / \param[in] flags specifies the flags of the thread that shall be cleared. */ /* / \return thread flags before clearing or error code if highest bit set. */ uint32_t osThreadFlagsClear(uint32_t flags); /* / Get the current Thread Flags of current running thread. */ /* / \return current thread flags. */ uint32_t osThreadFlagsGet(void); /* / Wait for one or more Thread Flags of the current running thread to become signaled. */ /* / \param[in] flags specifies the flags to wait for. */ /* / \param[in] options specifies flags options (osFlagsXxxx). */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return thread flags before clearing or error code if highest bit set. */ uint32_t osThreadFlagsWait(uint32_t flags, uint32_t options, uint32_t timeout); /* ==== Generic Wait Functions ==== */ /* / Wait for Timeout (Time Delay). */ /* / \param[in] ticks \ref CMSIS_RTOS_TimeOutValue "time ticks" value */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osDelay(uint32_t ticks); /* / Wait until specified time. */ /* / \param[in] ticks absolute time in ticks */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osDelayUntil(uint32_t ticks); /* ==== Timer Management Functions ==== */ /* / Create and Initialize a timer. */ /* / \param[in] func function pointer to callback function. */ /* / \param[in] type \ref osTimerOnce for one-shot or \ref osTimerPeriodic for periodic behavior. */ /* / \param[in] argument argument to the timer callback function. */ /* / \param[in] attr timer attributes; NULL: default values. */ /* / \return timer ID for reference by other functions or NULL in case of error. */ osTimerId_t osTimerNew(osTimerFunc_t func, osTimerType_t type, void *argument, const osTimerAttr_t *attr); /* / Get name of a timer. */ /* / \param[in] timer_id timer ID obtained by \ref osTimerNew. */ /* / \return name as NULL terminated string. */ const char *osTimerGetName(osTimerId_t timer_id); /* / Start or restart a timer. */ /* / \param[in] timer_id timer ID obtained by \ref osTimerNew. */ /* / \param[in] ticks \ref CMSIS_RTOS_TimeOutValue "time ticks" value of the timer. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osTimerStart(osTimerId_t timer_id, uint32_t ticks); /* / Stop a timer. */ /* / \param[in] timer_id timer ID obtained by \ref osTimerNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osTimerStop(osTimerId_t timer_id); /* / Check if a timer is running. */ /* / \param[in] timer_id timer ID obtained by \ref osTimerNew. */ /* / \return 0 not running, 1 running. */ uint32_t osTimerIsRunning(osTimerId_t timer_id); /* / Delete a timer. */ /* / \param[in] timer_id timer ID obtained by \ref osTimerNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osTimerDelete(osTimerId_t timer_id); /* ==== Event Flags Management Functions ==== */ /* / Create and Initialize an Event Flags object. */ /* / \param[in] attr event flags attributes; NULL: default values. */ /* / \return event flags ID for reference by other functions or NULL in case of error. */ osEventFlagsId_t osEventFlagsNew(const osEventFlagsAttr_t *attr); /* / Get name of an Event Flags object. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \return name as NULL terminated string. */ const char *osEventFlagsGetName(osEventFlagsId_t ef_id); /* / Set the specified Event Flags. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \param[in] flags specifies the flags that shall be set. */ /* / \return event flags after setting or error code if highest bit set. */ uint32_t osEventFlagsSet(osEventFlagsId_t ef_id, uint32_t flags); /* / Clear the specified Event Flags. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \param[in] flags specifies the flags that shall be cleared. */ /* / \return event flags before clearing or error code if highest bit set. */ uint32_t osEventFlagsClear(osEventFlagsId_t ef_id, uint32_t flags); /* / Get the current Event Flags. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \return current event flags. */ uint32_t osEventFlagsGet(osEventFlagsId_t ef_id); /* / Wait for one or more Event Flags to become signaled. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \param[in] flags specifies the flags to wait for. */ /* / \param[in] options specifies flags options (osFlagsXxxx). */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return event flags before clearing or error code if highest bit set. */ uint32_t osEventFlagsWait(osEventFlagsId_t ef_id, uint32_t flags, uint32_t options, uint32_t timeout); /* / Delete an Event Flags object. */ /* / \param[in] ef_id event flags ID obtained by \ref osEventFlagsNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osEventFlagsDelete(osEventFlagsId_t ef_id); /* ==== Mutex Management Functions ==== */ /* / Create and Initialize a Mutex object. */ /* / \param[in] attr mutex attributes; NULL: default values. */ /* / \return mutex ID for reference by other functions or NULL in case of error. */ osMutexId_t osMutexNew(const osMutexAttr_t *attr); /* / Get name of a Mutex object. */ /* / \param[in] mutex_id mutex ID obtained by \ref osMutexNew. */ /* / \return name as NULL terminated string. */ const char *osMutexGetName(osMutexId_t mutex_id); /* / Acquire a Mutex or timeout if it is locked. */ /* / \param[in] mutex_id mutex ID obtained by \ref osMutexNew. */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMutexAcquire(osMutexId_t mutex_id, uint32_t timeout); /* / Release a Mutex that was acquired by \ref osMutexAcquire. */ /* / \param[in] mutex_id mutex ID obtained by \ref osMutexNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMutexRelease(osMutexId_t mutex_id); /* / Get Thread which owns a Mutex object. */ /* / \param[in] mutex_id mutex ID obtained by \ref osMutexNew. */ /* / \return thread ID of owner thread or NULL when mutex was not acquired. */ osThreadId_t osMutexGetOwner(osMutexId_t mutex_id); /* / Delete a Mutex object. */ /* / \param[in] mutex_id mutex ID obtained by \ref osMutexNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMutexDelete(osMutexId_t mutex_id); /* ==== Semaphore Management Functions ==== */ /* / Create and Initialize a Semaphore object. */ /* / \param[in] max_count maximum number of available tokens. */ /* / \param[in] initial_count initial number of available tokens. */ /* / \param[in] attr semaphore attributes; NULL: default values. */ /* / \return semaphore ID for reference by other functions or NULL in case of error. */ osSemaphoreId_t osSemaphoreNew(uint32_t max_count, uint32_t initial_count, const osSemaphoreAttr_t *attr); /* / Get name of a Semaphore object. */ /* / \param[in] semaphore_id semaphore ID obtained by \ref osSemaphoreNew. */ /* / \return name as NULL terminated string. */ const char *osSemaphoreGetName(osSemaphoreId_t semaphore_id); /* / Acquire a Semaphore token or timeout if no tokens are available. */ /* / \param[in] semaphore_id semaphore ID obtained by \ref osSemaphoreNew. */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osSemaphoreAcquire(osSemaphoreId_t semaphore_id, uint32_t timeout); /* / Release a Semaphore token up to the initial maximum count. */ /* / \param[in] semaphore_id semaphore ID obtained by \ref osSemaphoreNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osSemaphoreRelease(osSemaphoreId_t semaphore_id); /* / Get current Semaphore token count. */ /* / \param[in] semaphore_id semaphore ID obtained by \ref osSemaphoreNew. */ /* / \return number of tokens available. */ uint32_t osSemaphoreGetCount(osSemaphoreId_t semaphore_id); /* / Delete a Semaphore object. */ /* / \param[in] semaphore_id semaphore ID obtained by \ref osSemaphoreNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osSemaphoreDelete(osSemaphoreId_t semaphore_id); /* ==== Memory Pool Management Functions ==== */ /* / Create and Initialize a Memory Pool object. */ /* / \param[in] block_count maximum number of memory blocks in memory pool. */ /* / \param[in] block_size memory block size in bytes. */ /* / \param[in] attr memory pool attributes; NULL: default values. */ /* / \return memory pool ID for reference by other functions or NULL in case of error. */ osMemoryPoolId_t osMemoryPoolNew(uint32_t block_count, uint32_t block_size, const osMemoryPoolAttr_t *attr); /* / Get name of a Memory Pool object. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return name as NULL terminated string. */ const char *osMemoryPoolGetName(osMemoryPoolId_t mp_id); /* / Allocate a memory block from a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return address of the allocated memory block or NULL in case of no memory is available. */ void *osMemoryPoolAlloc(osMemoryPoolId_t mp_id, uint32_t timeout); /* / Return an allocated memory block back to a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \param[in] block address of the allocated memory block to be returned to the memory pool. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMemoryPoolFree(osMemoryPoolId_t mp_id, void *block); /* / Get maximum number of memory blocks in a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return maximum number of memory blocks. */ uint32_t osMemoryPoolGetCapacity(osMemoryPoolId_t mp_id); /* / Get memory block size in a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return memory block size in bytes. */ uint32_t osMemoryPoolGetBlockSize(osMemoryPoolId_t mp_id); /* / Get number of memory blocks used in a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return number of memory blocks used. */ uint32_t osMemoryPoolGetCount(osMemoryPoolId_t mp_id); /* / Get number of memory blocks available in a Memory Pool. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return number of memory blocks available. */ uint32_t osMemoryPoolGetSpace(osMemoryPoolId_t mp_id); /* / Delete a Memory Pool object. */ /* / \param[in] mp_id memory pool ID obtained by \ref osMemoryPoolNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMemoryPoolDelete(osMemoryPoolId_t mp_id); /* ==== Message Queue Management Functions ==== */ /* / Create and Initialize a Message Queue object. */ /* / \param[in] msg_count maximum number of messages in queue. */ /* / \param[in] msg_size maximum message size in bytes. */ /* / \param[in] attr message queue attributes; NULL: default values. */ /* / \return message queue ID for reference by other functions or NULL in case of error. */ osMessageQueueId_t osMessageQueueNew(uint32_t msg_count, uint32_t msg_size, const osMessageQueueAttr_t *attr); /* / Get name of a Message Queue object. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return name as NULL terminated string. */ const char *osMessageQueueGetName(osMessageQueueId_t mq_id); /* / Put a Message into a Queue or timeout if Queue is full. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \param[in] msg_ptr pointer to buffer with message to put into a queue. */ /* / \param[in] msg_prio message priority. */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMessageQueuePut(osMessageQueueId_t mq_id, const void *msg_ptr, uint8_t msg_prio, uint32_t timeout); /* / Get a Message from a Queue or timeout if Queue is empty. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \param[out] msg_ptr pointer to buffer for message to get from a queue. */ /* / \param[out] msg_prio pointer to buffer for message priority or NULL. */ /* / \param[in] timeout \ref CMSIS_RTOS_TimeOutValue or 0 in case of no time-out. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMessageQueueGet(osMessageQueueId_t mq_id, void *msg_ptr, uint8_t *msg_prio, uint32_t timeout); /* / Get maximum number of messages in a Message Queue. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return maximum number of messages. */ uint32_t osMessageQueueGetCapacity(osMessageQueueId_t mq_id); /* / Get maximum message size in a Memory Pool. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return maximum message size in bytes. */ uint32_t osMessageQueueGetMsgSize(osMessageQueueId_t mq_id); /* / Get number of queued messages in a Message Queue. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return number of queued messages. */ uint32_t osMessageQueueGetCount(osMessageQueueId_t mq_id); /* / Get number of available slots for messages in a Message Queue. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return number of available slots for messages. */ uint32_t osMessageQueueGetSpace(osMessageQueueId_t mq_id); /* / Reset a Message Queue to initial empty state. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMessageQueueReset(osMessageQueueId_t mq_id); /* / Delete a Message Queue object. */ /* / \param[in] mq_id message queue ID obtained by \ref osMessageQueueNew. */ /* / \return status code that indicates the execution status of the function. */ osStatus_t osMessageQueueDelete(osMessageQueueId_t mq_id); #ifdef __cplusplus } #endif #endif /* CMSIS_OS2_H_ */ |