📄 os_mbox.lst
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\ 000000B8 ........ _BLF OS_CPU_SR_Restore,??OS_CPU_SR_Restore??rA
310 *err = OS_ERR_NONE;
\ 000000BC 0000A0E3 MOV R0,#+0
\ 000000C0 0000C4E5 STRB R0,[R4, #+0]
311 return (msg); /* Return the message received (or NULL) */
\ 000000C4 0800B0E1 MOVS R0,R8
\ 000000C8 3D0000EA B ??OSMboxPend_1
312 }
313 OSTCBCur->OSTCBStat |= OS_STAT_MBOX; /* Message not available, task will pend */
\ ??OSMboxPend_7:
\ 000000CC F8009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 000000D0 000090E5 LDR R0,[R0, #+0]
\ 000000D4 F0109FE5 LDR R1,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 000000D8 001091E5 LDR R1,[R1, #+0]
\ 000000DC 2C10D1E5 LDRB R1,[R1, #+44]
\ 000000E0 021091E3 ORRS R1,R1,#0x2
\ 000000E4 2C10C0E5 STRB R1,[R0, #+44]
314 OSTCBCur->OSTCBStatPend = OS_STAT_PEND_OK;
\ 000000E8 DC009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 000000EC 000090E5 LDR R0,[R0, #+0]
\ 000000F0 0010A0E3 MOV R1,#+0
\ 000000F4 2D10C0E5 STRB R1,[R0, #+45]
315 OSTCBCur->OSTCBDly = timeout; /* Load timeout in TCB */
\ 000000F8 CC009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 000000FC 000090E5 LDR R0,[R0, #+0]
\ 00000100 BA62C0E1 STRH R6,[R0, #+42]
316 OS_EventTaskWait(pevent); /* Suspend task until event or timeout occurs */
\ 00000104 0500B0E1 MOVS R0,R5
\ 00000108 ........ _BLF OS_EventTaskWait,??OS_EventTaskWait??rA
317 OS_EXIT_CRITICAL();
\ 0000010C 0700B0E1 MOVS R0,R7
\ 00000110 ........ _BLF OS_CPU_SR_Restore,??OS_CPU_SR_Restore??rA
318 OS_Sched(); /* Find next highest priority task ready to run */
\ 00000114 ........ _BLF OS_Sched,??OS_Sched??rA
319 OS_ENTER_CRITICAL();
\ 00000118 ........ _BLF OS_CPU_SR_Save,??OS_CPU_SR_Save??rA
\ 0000011C 0070B0E1 MOVS R7,R0
320 if (OSTCBCur->OSTCBStatPend != OS_STAT_PEND_OK) { /* See if we weren't given the message */
\ 00000120 A4009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 00000124 000090E5 LDR R0,[R0, #+0]
\ 00000128 2D00D0E5 LDRB R0,[R0, #+45]
\ 0000012C 000050E3 CMP R0,#+0
\ 00000130 0F00000A BEQ ??OSMboxPend_8
321 pend_stat = OSTCBCur->OSTCBStatPend;
\ 00000134 90009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 00000138 000090E5 LDR R0,[R0, #+0]
\ 0000013C 2D60D0E5 LDRB R6,[R0, #+45]
322 OS_EventTOAbort(pevent); /* Timed out, Make task ready */
\ 00000140 0500B0E1 MOVS R0,R5
\ 00000144 ........ _BLF OS_EventTOAbort,??OS_EventTOAbort??rA
323 OS_EXIT_CRITICAL();
\ 00000148 0700B0E1 MOVS R0,R7
\ 0000014C ........ _BLF OS_CPU_SR_Restore,??OS_CPU_SR_Restore??rA
324 switch (pend_stat) {
\ 00000150 020056E3 CMP R6,#+2
\ 00000154 0200000A BEQ ??OSMboxPend_9
325 case OS_STAT_PEND_TO:
326 default:
327 *err = OS_ERR_TIMEOUT; /* Indicate that a timeout occured */
\ ??OSMboxPend_10:
\ 00000158 0A00A0E3 MOV R0,#+10
\ 0000015C 0000C4E5 STRB R0,[R4, #+0]
\ 00000160 010000EA B ??OSMboxPend_11
328 break;
329
330 case OS_STAT_PEND_ABORT:
331 *err = OS_ERR_PEND_ABORT; /* Indicate that we aborted */
\ ??OSMboxPend_9:
\ 00000164 0E00A0E3 MOV R0,#+14
\ 00000168 0000C4E5 STRB R0,[R4, #+0]
332 break;
333 }
334 return ((void *)0); /* Return a NULL message */
\ ??OSMboxPend_11:
\ 0000016C 0000A0E3 MOV R0,#+0
\ 00000170 130000EA B ??OSMboxPend_1
335 }
336 msg = OSTCBCur->OSTCBMsg;
\ ??OSMboxPend_8:
\ 00000174 50009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 00000178 000090E5 LDR R0,[R0, #+0]
\ 0000017C 208090E5 LDR R8,[R0, #+32]
337 OSTCBCur->OSTCBMsg = (void *)0; /* Yes, clear message received */
\ 00000180 44009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 00000184 000090E5 LDR R0,[R0, #+0]
\ 00000188 0010A0E3 MOV R1,#+0
\ 0000018C 201080E5 STR R1,[R0, #+32]
338 OSTCBCur->OSTCBStat = OS_STAT_RDY;
\ 00000190 34009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 00000194 000090E5 LDR R0,[R0, #+0]
\ 00000198 0010A0E3 MOV R1,#+0
\ 0000019C 2C10C0E5 STRB R1,[R0, #+44]
339 OSTCBCur->OSTCBEventPtr = (OS_EVENT *)0; /* No longer waiting for event */
\ 000001A0 24009FE5 LDR R0,??OSMboxPend_5+0x4 ;; OSTCBCur
\ 000001A4 000090E5 LDR R0,[R0, #+0]
\ 000001A8 0010A0E3 MOV R1,#+0
\ 000001AC 1C1080E5 STR R1,[R0, #+28]
340 OS_EXIT_CRITICAL();
\ 000001B0 0700B0E1 MOVS R0,R7
\ 000001B4 ........ _BLF OS_CPU_SR_Restore,??OS_CPU_SR_Restore??rA
341 *err = OS_ERR_NONE;
\ 000001B8 0000A0E3 MOV R0,#+0
\ 000001BC 0000C4E5 STRB R0,[R4, #+0]
342 return (msg); /* Return the message received */
\ 000001C0 0800B0E1 MOVS R0,R8
\ ??OSMboxPend_1:
\ 000001C4 F081BDE8 POP {R4-R8,PC} ;; return
\ ??OSMboxPend_5:
\ 000001C8 ........ DC32 OSLockNesting
\ 000001CC ........ DC32 OSTCBCur
343 }
344 /*$PAGE*/
345 /*
346 *********************************************************************************************************
347 * ABORT WAITING ON A MESSAGE MAILBOX
348 *
349 * Description: This function aborts & readies any tasks currently waiting on a mailbox. This function
350 * should be used to fault-abort the wait on the mailbox, rather than to normally signal
351 * the mailbox via OSMboxPost() or OSMboxPostOpt().
352 *
353 * Arguments : pevent is a pointer to the event control block associated with the desired mailbox.
354 *
355 * opt determines the type of ABORT performed:
356 * OS_PEND_OPT_NONE ABORT wait for a single task (HPT) waiting on the
357 * mailbox
358 * OS_PEND_OPT_BROADCAST ABORT wait for ALL tasks that are waiting on the
359 * mailbox
360 *
361 * err is a pointer to where an error message will be deposited. Possible error
362 * messages are:
363 *
364 * OS_ERR_NONE No tasks were waiting on the mailbox.
365 * OS_ERR_PEND_ABORT At least one task waiting on the mailbox was readied
366 * and informed of the aborted wait; check return value
367 * for the number of tasks whose wait on the mailbox
368 * was aborted.
369 * OS_ERR_EVENT_TYPE If you didn't pass a pointer to a mailbox.
370 * OS_ERR_PEVENT_NULL If 'pevent' is a NULL pointer.
371 *
372 * Returns : == 0 if no tasks were waiting on the mailbox, or upon error.
373 * > 0 if one or more tasks waiting on the mailbox are now readied and informed.
374 *********************************************************************************************************
375 */
376
377 #if OS_MBOX_PEND_ABORT_EN > 0
\ In segment CODE, align 4, keep-with-next
378 INT8U OSMboxPendAbort (OS_EVENT *pevent, INT8U opt, INT8U *err)
379 {
\ OSMboxPendAbort:
\ 00000000 F0412DE9 PUSH {R4-R8,LR}
\ 00000004 0050B0E1 MOVS R5,R0
\ 00000008 0160B0E1 MOVS R6,R1
\ 0000000C 0240B0E1 MOVS R4,R2
380 INT8U nbr_tasks;
381 #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
382 OS_CPU_SR cpu_sr = 0;
\ 00000010 0080A0E3 MOV R8,#+0
383 #endif
384
385
386
387 #if OS_ARG_CHK_EN > 0
388 if (err == (INT8U *)0) { /* Validate 'err' */
\ 00000014 000054E3 CMP R4,#+0
\ 00000018 0100001A BNE ??OSMboxPendAbort_0
389 return (0);
\ 0000001C 0000A0E3 MOV R0,#+0
\ 00000020 310000EA B ??OSMboxPendAbort_1
390 }
391 if (pevent == (OS_EVENT *)0) { /* Validate 'pevent' */
\ ??OSMboxPendAbort_0:
\ 00000024 000055E3 CMP R5,#+0
\ 00000028 0300001A BNE ??OSMboxPendAbort_2
392 *err = OS_ERR_PEVENT_NULL;
\ 0000002C 0400A0E3 MOV R0,#+4
\ 00000030 0000C4E5 STRB R0,[R4, #+0]
393 return (0);
\ 00000034 0000A0E3 MOV R0,#+0
\ 00000038 2B0000EA B ??OSMboxPendAbort_1
394 }
395 #endif
396 if (pevent->OSEventType != OS_EVENT_TYPE_MBOX) { /* Validate event block type */
\ ??OSMboxPendAbort_2:
\ 0000003C 0000D5E5 LDRB R0,[R5, #+0]
\ 00000040 010050E3 CMP R0,#+1
\ 00000044 0300000A BEQ ??OSMboxPendAbort_3
397 *err = OS_ERR_EVENT_TYPE;
\ 00000048 0100A0E3 MOV R0,#+1
\ 0000004C 0000C4E5 STRB R0,[R4, #+0]
398 return (0);
\ 00000050 0000A0E3 MOV R0,#+0
\ 00000054 240000EA B ??OSMboxPendAbort_1
399 }
400 OS_ENTER_CRITICAL();
\ ??OSMboxPendAbort_3:
\ 00000058 ........ _BLF OS_CPU_SR_Save,??OS_CPU_SR_Save??rA
\ 0000005C 0080B0E1 MOVS R8,R0
401 if (pevent->OSEventGrp != 0) { /* See if any task waiting on mailbox? */
\ 00000060 0A00D5E5 LDRB R0,[R5, #+10]
\ 00000064 000050E3 CMP R0,#+0
\ 00000068 1A00000A BEQ ??OSMboxPendAbort_4
402 nbr_tasks = 0;
\ 0000006C 0070A0E3 MOV R7,#+0
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