-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathone_wire.c
1367 lines (1167 loc) · 47.3 KB
/
one_wire.c
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
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Licensed under the EUPL V.1.1, Lizenziert unter EUPL V.1.1
*/
/*
* VERSION 1.0 Januar 7th 2010 LATE File: 'one_wire_adc.c'
* Author: Linda Fouedjio based on Alejandro Gil
* modified (heavily rather rebuild): Peter Zumbruch
*/
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <ctype.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>
#include <avr/iocan128.h>
#include "one_wire.h"
#include "one_wire_adc.h"
#include "one_wire_dualSwitch.h"
#include "one_wire_simpleSwitch.h"
#include "one_wire_octalSwitch.h"
#include "read_write_register.h"
#include "one_wire_temperature.h"
#include "adc.h"
#include "api.h"
#include "api_define.h"
#include "api_global.h"
#include "api_debug.h"
#include "can.h"
#include "mem-check.h"
#include "OWIDeviceSpecific.h"
#include "OWIHighLevelFunctions.h"
#include "OWIBitFunctions.h"
#include "OWIcrc.h"
static const char filename[] PROGMEM = __FILE__;
char owi_id_string[OWI_ID_LENGTH];
void owiCreateIdString(char string[OWI_ID_LENGTH], uint8_t array[])
{
clearString(string, OWI_ID_LENGTH);
/* assign current id to string */
snprintf(string, OWI_ID_LENGTH, "%02X%02X%02X%02X%02X%02X%02X%02X",
array[0], array[1], array[2], array[3], array[4], array[5], array[6], array[7]);
}
/*
* this function collects all ID of devices connected to bus
* and returns the number of found devices
*/
int8_t owiReadDevicesID( uint8_t *pins )
{
countDEV = 0; /*reset number of devices */
unsigned char owiSearchLastBitDeviation = 1;
unsigned char firstSearchOnBus_flag = TRUE;
/* TODO: the search is done per bus,
* check if its also possible to it per bus mask
*/
for ( int8_t pinBusPatternIndex = 0 ; pinBusPatternIndex < OWI_MAX_NUM_PIN_BUS && countDEV < OWI_MAX_NUM_DEVICES; pinBusPatternIndex++ )
{
/* clear last index of IDs array use as previous Address pointer from IDs array
* see owiSearch_Rom for more details */
for ( int8_t a = 0 ; a < 7 ; a++ )
{
owi_IDs[OWI_MAX_NUM_DEVICES - 1][a] = 0;
}
/* check bus active mask */
if ( 0 == ((owiBusMask & pins[pinBusPatternIndex]) & 0xFF) )
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("message %s"), owiBusMask);
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus: %i passive (pin pattern %#x owiBusMask %#x)"), pinBusPatternIndex, pins[pinBusPatternIndex],owiBusMask);
continue;
}
else
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus: %i active (pin pattern %#x owiBusMask %#x)"), pinBusPatternIndex, pins[pinBusPatternIndex],owiBusMask);
}
if ( debugLevelEventDebug <= globalDebugLevel && ((globalDebugSystemMask >> debugSystemOWI) & 0x1))
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus: %i active (pin pattern %#x owiBusMask %#x)"), pinBusPatternIndex, pins[pinBusPatternIndex],owiBusMask);
}
if ( 0 != OWI_DetectPresence(pins[pinBusPatternIndex]) )
{
/*this will search the devices IDs till the max number of devices is reached or
*all the devices have been read out
*/
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("devices detected"));
/* find all devices on that bus
* - count: countDEVbus
* - IDs: owi_IDs
*/
// reseting bus counter, flag, and positions
countDEVbus = 0;
firstSearchOnBus_flag = TRUE;
owiSearchLastBitDeviation = OWI_ROM_SEARCH_FINISHED + 1;
uint16_t trialsCounter = 0;
while ( OWI_MAX_NUM_DEVICES > countDEV && owiSearchLastBitDeviation != OWI_ROM_SEARCH_FINISHED && OWI_MAX_NUM_DEVICES > trialsCounter)
{
trialsCounter++;
owi_IDs_pinMask[countDEV] = 0;
OWI_DetectPresence(pins[pinBusPatternIndex]);
/* reset search last bit deviation */
if ( TRUE == firstSearchOnBus_flag ) { owiSearchLastBitDeviation = 0; firstSearchOnBus_flag = FALSE; }
/* OWI_SearchRom(bitPattern,...
* bitPattern A pointer to an 8 byte char array where the
* discovered identifier will be placed. When
* searching for several slaves, a copy of the
* last found identifier should be supplied in
* the array, or the search will fail.
*/
/* - misusing the last array element to store the latest result*/
owiSearchLastBitDeviation = OWI_SearchRom(owi_IDs[OWI_MAX_NUM_DEVICES - 1], owiSearchLastBitDeviation, pins[pinBusPatternIndex]);
unsigned char result = OWI_CheckRomCRC(owi_IDs[OWI_MAX_NUM_DEVICES - 1]);
unsigned char skip_flag = FALSE;
switch(result)
{
case OWI_CRC_OK:
printDebug_p(debugLevelEventDebugVerbose, debugSystemOWI, __LINE__, filename, PSTR("OWI CRC check passed"));
break;
case OWI_CRC_ERROR:
owiCreateIdString(owi_id_string, owi_IDs[OWI_MAX_NUM_DEVICES -1]);
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("bus: %i (Mask:%#x) - OWI CRC check failure, skipping current id: %s"), pinBusPatternIndex, owiBusMask, owi_id_string);
skip_flag = TRUE;
break;
default:
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("OWI CRC check internal failure"));
return countDEV;
break;
}
if (TRUE == skip_flag)
{
continue;
}
for ( int8_t a = 0 ; a < 8 ; a++ )
{
owi_IDs[countDEV][a] = owi_IDs[OWI_MAX_NUM_DEVICES - 1][a];
}
owi_IDs_pinMask[countDEV] = pins[pinBusPatternIndex];
if ( debugLevelEventDebug <= globalDebugLevel && ((globalDebugSystemMask >> debugSystemOWI) & 0x1))
{
owiCreateIdString(owi_id_string, owi_IDs[countDEV]);
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus: %i (%#x), search loop total: %i 1/bus: %i ID: %s"), pinBusPatternIndex, owi_IDs_pinMask[countDEV], countDEV, countDEVbus, owi_id_string );
}
countDEVbus++;
countDEV++;
} // end of while ( countDEV < OWI_MAX_NUM_DEVICES && res != OWI_ROM_SEARCH_FINISHED )
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus: %i found %i valid devices, within %i trials"), pinBusPatternIndex, countDEVbus, trialsCounter);
} //end of if((PD=OWI_DetectPresence(pins[pinBusPatternIndex]))!=0)
else
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("no_device_is_connected_to_the_bus"));
continue;
}
}// end of for ( int8_t b = 0 ; b < OWI_MAX_NUM_PIN_BUS ; b++ )
if ( 0 == countDEV )
{
generalErrorCode = CommunicationError_p(ERRG, GENERAL_ERROR_no_device_is_connected_to_the_bus, TRUE, NULL);
}
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("found %i devices"), countDEV );
return countDEV;
}// END of owiReadDevicesID function
/*
* this function lists IDs on all devices connected to one wire bus
* the input parameter is the pointer to the uartStruct
* returns the number of found devices
*/
int8_t owiShowDevicesID( struct uartStruct* ptr_myuartStruct)
{
#warning TODO: remove local foundDevice string, not neccessary
#define OWI_FOUND_DEVICE_STRING_LENGTH 60
char foundDevice[OWI_FOUND_DEVICE_STRING_LENGTH]; /*string variable to store all found devices*/
uint8_t familyCode = 0;
uint8_t countFoundFamilyCode = 0;
uint8_t deviceIndex = 0;
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR(""));
/*
if ( NULL == ptr_myuartStruct )
{
ptr_myuartStruct = ptr_uartStruct ;
}
*/
/* read in list of devices */
countDEV = owiReadDevicesID( BUSES );
/* once clear output string (later cleared by output procedure) */
clearString(foundDevice, OWI_FOUND_DEVICE_STRING_LENGTH);
/* check size of family code */
if ( 0 < ptr_uartStruct->number_of_arguments && 0xFF < ptr_uartStruct->Uart_Message_ID )
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("invalid family code %i"), ptr_uartStruct->Uart_Message_ID );
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("invalid family code, exceeding limits [0,0xFF]"));
return 0;
}
else
{
printDebug_p(debugLevelEventDebugVerbose, debugSystemOWI, __LINE__, filename, PSTR("valid family code %i"), ptr_uartStruct->Uart_Message_ID );
familyCode = (uint8_t) (ptr_uartStruct->Uart_Message_ID & 0xFF);
}
countFoundFamilyCode = 0;
/* once clear output string (later cleared by output procedure) */
clearString(message, BUFFER_SIZE);
createReceiveHeader(NULL, message, 0);
if ( 0 != familyCode )
{
snprintf(message, BUFFER_SIZE - 1, "%s%02X ", message, familyCode);
}
/*this loop will show the IDs on foundDevice*/
for ( deviceIndex = 0 ; deviceIndex < countDEV ; deviceIndex++ )
{
// output device id of found devices
// check if requested Family Code (familyCode)
// does match the current one or are all allowed (0), else continue
if ( ( familyCode != 0 ) && ( owi_IDs[deviceIndex][0] != familyCode ) )
{
continue;
}
/*clear strings*/
clearString(owi_id_string, OWI_ID_LENGTH);
/* assign current id to string */
owiCreateIdString(owi_id_string, owi_IDs[deviceIndex]);
/*send the data to see the list of all found devices*/
snprintf_P(foundDevice, OWI_FOUND_DEVICE_STRING_LENGTH - 1, PSTR("%sbus mask: "), message, countFoundFamilyCode);
snprintf(foundDevice, OWI_FOUND_DEVICE_STRING_LENGTH - 1, "%s0x%02X ", foundDevice, owi_IDs_pinMask[deviceIndex]);
snprintf_P(foundDevice, OWI_FOUND_DEVICE_STRING_LENGTH - 1, PSTR("%sID: %s"), foundDevice, owi_id_string);
/*send the data*/
UART0_Send_Message_String_p(foundDevice, OWI_FOUND_DEVICE_STRING_LENGTH);
countFoundFamilyCode++;
} //end of for deviceIndex
// if any device has been found, add a newline at the end
if (0 < countFoundFamilyCode)
{
clearString(uart_message_string, BUFFER_SIZE);
snprintf_P(uart_message_string, BUFFER_SIZE - 1, PSTR("%sfound %i devices"), message, countFoundFamilyCode);
UART0_Send_Message_String_p(NULL,0);
}
// found any matching device??
if ( 0 == countFoundFamilyCode && 0 != familyCode )
{
generalErrorCode = CommunicationError_p(ERRG, GENERAL_ERROR_family_code_not_found, TRUE, NULL);
}//end of if ( 0 == countFoundFamilyCode && 0 != familyCode )
return countFoundFamilyCode;
}// END of owiShowDevicesID function
/*
* owiFindFamilyDevicesAndAccessValues
*
* this function calls the read/write functions
* of the supported 1-wire devices
* and sends the results to UART
*
* supported devices are:
*
* - OWI_FAMILY_DS18B20_TEMP
* - OWI_FAMILY_DS18S20_TEMP
* - OWI_FAMILY_DS2405_SIMPLE_SWITCH
* - OWI_FAMILY_DS2413_DUAL_SWITCH
* - OWI_FAMILY_DS2450_ADC
*
* inputs:
* - pins:
* unsigned int8_t array pointer to the available pin_masks of the one-wire busses
* - countDev:
* unsigned int8_t number of devices available (found in previous lookup)
* - familyCode:
* byte to select a subset of the available devices belonging to this 1-wire family Code
* - selectedDeviceIndex
* index to select just one device by its index in the list of IDs owi_IDs[index]
* - < 0 : take everything
* - else: use as index
* - index >= countDev: error
* - ptr_value:
* void pointer pointing to the value to be casted by the following structures,
* if set switches to write access, else reading
* - NULL: read access
* - else: write access
*
* return values
* - >= 0: number of found devices;
* - < 0: errors;
*/
int8_t owiFindFamilyDevicesAndAccessValues( uint8_t *pins, uint8_t countDev, uint8_t familyCode, void *ptr_value)
{
int8_t deviceIndex = 0;
# warning replace by a union
uint32_t readValueADC = 0;/*variable to read value of ADC channel*/
uint32_t readValueTemp = 0;/*variable to read temperature of sensor*/
uint16_t readValueDS = 0;/*variable to read value of dual switch*/
uint16_t writeValueDS = 0;/*variable to write value of dual switch*/
uint16_t readValueSS = 0;/*variable to read value of simple switch*/
uint16_t readValueOS = 0;/*variable to read value of octal switch*/
uint16_t writeValueOS = 0;/*variable to write value of octal switch*/
uint16_t ADCValues[4];
uint8_t foundCounter = 0;
uint8_t write_flag = FALSE;
int8_t selectedDeviceIndex = -1;
/* check input */
if (NULL == pins)
{
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, FALSE, PSTR("fcn:FindFamilyDevicesAndGetValues: 1st argument is NULL ... skipping"));
return -1;
}
if ( 0 == countDev )
{
generalErrorCode = CommunicationError_p(ERRG, GENERAL_ERROR_no_device_is_connected_to_the_bus, FALSE, NULL);
return 0;
}
if (ptr_owiStruct->idSelect_flag)
{
selectedDeviceIndex = owiFindIdAndGetIndex(ptr_owiStruct->id);
if ( -1 == selectedDeviceIndex)
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("no matching ID found"));
return 0;
}
if ( -1 > selectedDeviceIndex )
{
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("fcn:owiFindFamilyDevicesAndGetValues: error while searching for id's index ... skipping") );
return -1;
}
}
if ( selectedDeviceIndex >= countDev )
{
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, FALSE, PSTR("fcn:FindFamilyDevicesAndGetValues: selected device index (arg 4) is out of range ... skipping") );
return -1;
}
/* is value pointer pointing to a real value, if not access mode is reading */
if (NULL == ptr_value)
{
write_flag = FALSE;
}
else
{
write_flag = TRUE;
}
for ( deviceIndex = 0; deviceIndex < countDev ; deviceIndex++ )
{
/* is index selection used and does current device index match?*/
if ( 0 <= selectedDeviceIndex && deviceIndex != selectedDeviceIndex) { continue; }
/* does familyID matches current ID */
if ( familyCode != owi_IDs[deviceIndex][0] ) { continue; }
/* bus mask matches device's bus ? */
if ( 0 == ( ( owiBusMask & owi_IDs_pinMask[deviceIndex] ) & 0xFF ) )
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("bus %i doesn't match owiBusMask (%#x)"), owi_IDs_pinMask[deviceIndex], owiBusMask);
continue;
}
/*clear strings*/
clearString(message, BUFFER_SIZE);
clearString(resultString, BUFFER_SIZE);
/* assign current id to string */
owiCreateIdString(owi_id_string, owi_IDs[deviceIndex]);
#warning TODO: put everything in the cases in one function getXXX(bus, ID) filling the message string, since the output is device specific
#warning and call the functions via a pre-defined jump table
if ( FALSE == write_flag )
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("READ ACCESS"));
switch ( familyCode )
{
case OWI_FAMILY_DS2450_ADC:
printDebug_p(debugLevelEventDebug, debugSystemOWIADC, __LINE__, filename, PSTR("bus %i call: ReadADCchannels"), owi_IDs_pinMask[deviceIndex]);
readValueADC = owiReadChannelsOfSingleADCs(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex], ADCValues, 4);
printDebug_p(debugLevelEventDebug, debugSystemOWIADC, __LINE__, filename, PSTR("bus %i: returned %i"), owi_IDs_pinMask[deviceIndex], readValueADC);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueADC >> OWI_ADC_DS2450_MAX_RESOLUTION )) { continue; }
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s%s", owi_id_string, resultString);
// snprintf(message, BUFFER_SIZE - 1, "%s %.4X %.4X %.4X %.4X",
// owi_id_string, ADCValues[0], ADCValues[1], ADCValues[2], ADCValues[3]);
break;
case OWI_FAMILY_DS18S20_TEMP:
case OWI_FAMILY_DS18B20_TEMP:
printDebug_p(debugLevelEventDebug, debugSystemOWITemperatures, __LINE__, filename, PSTR("bus_pattern %x : returned %i"), owi_IDs_pinMask[deviceIndex], readValueADC);
readValueTemp = owiTemperatureReadSingleSensor(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex]);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueTemp >> 16)) { continue; }
/* mask off status remainder */
readValueTemp &= 0xFFFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.4lX", owi_id_string,readValueTemp);
break;
case OWI_FAMILY_DS2408_OCTAL_SWITCH:
readValueOS = ReadOctalSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex]);
if ( 0 != owiCheckReadWriteReturnStatus( readValueOS >> 8)) { continue; }
/* mask off status remainder */
readValueOS &= 0xFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueOS);
break;
case OWI_FAMILY_DS2413_DUAL_SWITCH:
readValueDS = ReadDualSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex]);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueDS >> 8)) { continue; }
/* mask off status remainder */
readValueDS &= 0xFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueDS);
break;
case OWI_FAMILY_DS2405_SIMPLE_SWITCH:
readValueSS = ReadSimpleSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex]);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueSS >> 8)) { continue; }
/* mask off status remainder */
readValueSS &= 0xFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueSS);
break;
default:
generalErrorCode = CommunicationError_p(ERRG, GENERAL_ERROR_undefined_family_code, FALSE, NULL);
continue;
break;
}
}
else /* write access: write_flag >= TRUE */
{
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("WRITE ACCESS"));
switch ( familyCode )
{
case OWI_FAMILY_DS2408_OCTAL_SWITCH:
writeValueOS = 0xFF & *((uint8_t*) ptr_value);
readValueOS = WriteOctalSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex], writeValueOS);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueOS >> 8)) { continue; }
/* mask off status remainder */
readValueOS &= 0xFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueOS);
break;
case OWI_FAMILY_DS2413_DUAL_SWITCH:
writeValueDS = 0xFF & *((uint8_t*) ptr_value);
readValueDS = WriteDualSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex], writeValueDS);
/* read return status checking */
if ( 0 != owiCheckReadWriteReturnStatus( readValueDS >> 8)) { continue; }
/* mask off status remainder */
readValueDS &= 0xFF;
clearString(message, BUFFER_SIZE);
snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueDS);
break;
// case OWI_FAMILY_DS2405_SIMPLE_SWITCH:
// readValueSS = ReadSimpleSwitches(owi_IDs_pinMask[deviceIndex], owi_IDs[deviceIndex]);
// /* read return status checking */
// if ( 0 != owiCheckReadWriteReturnStatus( readValueSS >> 8)) { continue; }
//
// /* mask off status remainder */
// readValueSS &= 0xFF;
//
// clearString(message, BUFFER_SIZE);
// snprintf(message, BUFFER_SIZE - 1, "%s %.2X", owi_id_string, readValueSS);
break;
default:
generalErrorCode = CommunicationError_p(ERRG, GENERAL_ERROR_undefined_family_code, FALSE, NULL);
continue;
break;
}
}
/* generate header */
clearString(uart_message_string, BUFFER_SIZE);
createReceiveHeader(ptr_uartStruct, uart_message_string, BUFFER_SIZE);
/* combine header and message */
strncat(uart_message_string, message, BUFFER_SIZE -1);
#if HADCON_VERSION == 1
#warning TODO: is it necessary to have a trailing \r and the woLF send
#warning output may hide information by just using '\\r'
strncat(uart_message_string, "\r", BUFFER_SIZE -1);
/*send the data*/
UART0_Send_Message_String_woLF(uart_message_string, BUFFER_SIZE - 1);
#elif HADCON_VERSION == 2
/*send the data*/
UART0_Send_Message_String_p(uart_message_string, BUFFER_SIZE - 1);
#else
#error undefined HADCON_VERSION
#endif
/*clear strings*/
clearString(uart_message_string, BUFFER_SIZE);
clearString(message, BUFFER_SIZE);
foundCounter++;
}//for (deviceIndex=0;deviceIndex<countDev;deviceIndex++)
#if HADCON_VERSION == 1
if ( 0 < foundCounter)
{
UART0_Transmit_p('\n');
}
#endif
return foundCounter;
}//END of owiFindFamilyDevicesAndAccessValues
void setOneWireBusMask(struct uartStruct *ptr_uartStruct)
{
/* one-wire set/get active pins/bus mask*/
/* command : OWSP value
* set response: ...
* get response: RECV OWSP value */
/*TODO: change CAN naming to more general */
switch(ptr_uartStruct->number_of_arguments)
{
case 0:
clearString(uart_message_string, BUFFER_SIZE);
createReceiveHeader(NULL, NULL, 0);
snprintf_P(uart_message_string, BUFFER_SIZE - 1, PSTR("%s %x"), uart_message_string, owiBusMask );
UART0_Send_Message_String_p(NULL,0);
break;
case 1:
default:
if ( 0xFFFF < ptr_uartStruct->Uart_Message_ID )
{
CommunicationError_p(ERRA, SERIAL_ERROR_arguments_exceed_boundaries, 1,
PSTR("%lx, [%#lx ... %#lx]"),
ptr_uartStruct->Uart_Message_ID, 0, 0xFFFF);
return;
}
owiBusMask = (uint16_t) (ptr_uartStruct->Uart_Message_ID & 0xFFFF);
break;
}
if ( debugLevelVerboseDebug <= globalDebugLevel && ( ( globalDebugSystemMask >> debugSystemOWI ) & 0x1 ) )
{
if ( 0 < ptr_uartStruct->number_of_arguments)
{
ptr_uartStruct->number_of_arguments = 0;
setOneWireBusMask(ptr_uartStruct);
}
}
}
uint32_t getOneWireBusMask(struct uartStruct *ptr_uartStruct)
{
/*one-wire read active pins/bus mask*/
/* command : OWRP
* response: RECV OWRP value */
ptr_uartStruct->number_of_arguments = 0;
setOneWireBusMask(ptr_uartStruct);
return owiBusMask;
}
/* this function scans the list of devices (owi_IDs)
* for matching family ids.
* it does an logical OR of the bus pin mask of channel with the provided mask pointer
* and returns the number of found elements
* 0 also in case of errors
*/
uint8_t owiScanIDS(uint16_t id, uint16_t *mask)
{
uint8_t index = 0;
uint8_t count = 0;
if (NULL != mask)
{
for ( ; index < NumDevicesFound ; index++ )
{
if ( id == owi_IDs[index][0] )
{
count++;
*mask |= owi_IDs_pinMask[index];
}
}
}
return count;
}
/* this function checks the status of the read function
*
* and prints out some information if necessary / enabled
*
* returns 0 if owiReadWriteStatus_OK
* else 1
*
*/
uint8_t owiCheckReadWriteReturnStatus( uint32_t status )
{
switch ( status )
{
case owiReadWriteStatus_OK:
return 0;
break;
case owiReadStatus_owi_bus_mismatch: /*bus pattern didn't match owiBusMask*/
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("owi bus mask didn't match"));
return 1;
break;
case owiReadStatus_conversion_timeout: /*conversion time out*/
return 1;
break;
case owiReadStatus_no_device_presence: /*presence pulse without response*/
CommunicationError_p(ERRG, GENERAL_ERROR_no_device_is_connected_to_the_bus, FALSE, NULL);
return 1;
break;
default:
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("Error reading %s"), owi_id_string);
for ( uint8_t clearIndex = 0 ; clearIndex < BUFFER_SIZE ; clearIndex++ )
{
message[clearIndex] = STRING_END;
}
return 2;
break;
}
return 2;
}
/* this function initializes the structure owiStruct pointed to by ptr_owiStruct
*
* input:
* - pointer to owiStruct structure to be initialized
* output
* - 0 : if all ok
* - else: error
*
*/
uint8_t owiInitOwiStruct(struct owiStruct *ptr_owiStruct)
{
if (NULL == ptr_owiStruct)
{
return 1;
}
unsigned int i = 0;
for (i=0; i < 8; i++) { ptr_owiStruct->id[i]=0; }
ptr_owiStruct->idSelect_flag = FALSE;
ptr_owiStruct->ptr_value = NULL;
ptr_owiStruct->conv_flag = FALSE;
ptr_owiStruct->init_flag = FALSE;
ptr_owiStruct->value = 0;
clearString(ptr_owiStruct->command, sizeof(ptr_owiStruct->command)/sizeof(char));
return 0;
}
#warning TODO: using uint32_t , think of ID stored in structure/union { familyCode, uniq, CRC } instead/on top of an byte array
uint16_t isParameterIDThenFillOwiStructure(uint8_t parameterIndex)
{
/* calculate length of argument and check if all of them are hex numbers */
/* if first argument matches the above requirements of an ID
* - fill it into the structure
* - and set idSelect flag TRUE
*/
int index = 0;
char byte[] = "00";
uint16_t numericLength = 0;
if ( MAX_PARAMETER < parameterIndex)
{
CommunicationError_p(ERRG, dynamicMessage_ErrorIndex, TRUE, PSTR("invalid argument index"));
return 0;
}
ptr_owiStruct->idSelect_flag = FALSE;
numericLength = getNumberOfHexDigits(setParameter[parameterIndex], MAX_LENGTH_PARAMETER);
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("numeric length of argument '%s' is %i"), setParameter[parameterIndex], numericLength);
if ( 16 == numericLength)
{
/* fill id[] from string */
for (index = 0; index < 8; index++)
{
byte[0] = setParameter[parameterIndex][index*2];
byte[1] = setParameter[parameterIndex][index*2 +1];
byte[2] = 0;
ptr_owiStruct->id[index] = strtol(byte, NULL, 16);
}
/* set flag */
ptr_owiStruct->idSelect_flag = TRUE;
if ( debugLevelEventDebug <= globalDebugLevel && ((globalDebugSystemMask >> debugSystemOWI) & 0x1))
{
owiCreateIdString(owi_id_string, ptr_owiStruct->id);
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("argument %i is an ID: %s"), parameterIndex, owi_id_string );
}
return 1;
}
else
{
ptr_owiStruct->idSelect_flag = FALSE;
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("argument %i is NOT an ID"), parameterIndex );
return 0;
}
}
#warning TODO: check if this function can be used for any OW command
/*
* uint8_t owiConvertUartDataToOwiStruct(void)
*
* this function assigns the data of the structure uartData to the owi_struct used for many 1-wire commands
*
* input : none (accesses global setParameter array)
* output: none (accesses global structure ptr_owiStruct)
*
* After an init of the owi structure
* the function assumes that the arguments to be analyzed obey to the following possible configurations
* ( ID represents an hexadecimal 64 bit string, e.g. 2A45B456C89D1278)
*
* 0 arguments:
* (nothing to do, default values)
*
* 1 argument :
* - "ID"
* - task: read access to a specific device
* - action:
* - store ID in structure
* - set idSelect flag
* - "value"
* - task: write access to all possible devices
* - action:
* - store value in structure
*
* 2 arguments:
* - "ID conversion_flag"
* - task: read access to a specific ID with prior conversion
* - action:
* - store ID in structure
* - set idSelect flag
* - set conversion_flag if value differs from 0
* - "ID value"
* - task: write access to a specific device
* - action:
* - store ID in structure
* - set idSelect flag
* - store value in structure
* - "value init_flag"
* - task: write access to all possible devices with prior initialization
* - action:
* - store value in structure
* - set init_flag if value differs from 0
*
* 3 arguments:
* - "ID conversion_flag init_flag"
* - task: read access to a specific ID with prior conversion and initialization
* - action:
* - store ID in structure
* - set idSelect flag
* - set conversion_flag if value differs from 0
* - "ID value init_flag"
* - task: write access to a specific device with initialization
* - action:
* - store ID in structure
* - store value in structure
* - set init_flag if value differs from 0
*
*/
uint8_t owiConvertUartDataToOwiStruct(void)
{
#warning THERE IS TOO MUCH INTELLIGENCE IN THIS FUNCTION (reduce it to filling or split it up into ID ,,,,)
//unsigned int myid =0;
owiInitOwiStruct(ptr_owiStruct);
uint64_t value;
int8_t numberOfArguments = ptr_uartStruct->number_of_arguments;
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename, PSTR("number of arguments: %i"), numberOfArguments );
switch(numberOfArguments)
{
case 0:
/*nothing else to do*/
break;
case 1:
{
/* args:
* ID
* value
* command
*/
/* ID */
isParameterIDThenFillOwiStructure(1);
/* value / command */
if (FALSE == ptr_owiStruct->idSelect_flag)
{
if ( isNumericArgument(setParameter[1], MAX_LENGTH_PARAMETER))
{
getUnsignedNumericValueFromParameterIndex( 1 , &value );
ptr_owiStruct->value = (uint16_t) (0xFFFF & value);
ptr_owiStruct->ptr_value = &(ptr_owiStruct->value);
}
else
{
strncpy( ptr_owiStruct->command, setParameter[1], MAX_LENGTH_PARAMETER);
}
}
}
break;
case 2:
/* args:
* ID command
* ID convert_flag
* ID value
* value init_flag
* command argument
* command ID
*/
/* ID */
isParameterIDThenFillOwiStructure(1);
/* ID command / ID value/flag */
if (TRUE == ptr_owiStruct->idSelect_flag)
{
/* numeric value*/
if ( isNumericArgument(setParameter[2], MAX_LENGTH_PARAMETER))
{
/* second argument can either be numeric value (write mode) or numeric convert_flag (read_mode), indistinguishable
* assigning to value*/
getUnsignedNumericValueFromParameterIndex( 2 , &value );
ptr_owiStruct->value = (uint16_t) (0xFFFF & value);
ptr_owiStruct->ptr_value = &(ptr_owiStruct->value);
}
else /* command */
{
strncpy( ptr_owiStruct->command, setParameter[2], MAX_LENGTH_PARAMETER);
}
}
else /* value flag | command value/argument/ID*/
{
/* numeric value */
if ( isNumericArgument(setParameter[1], MAX_LENGTH_PARAMETER))
{
getUnsignedNumericValueFromParameterIndex( 1 , &value );
ptr_owiStruct->value = (uint16_t) (0xFFFF & value);
ptr_owiStruct->ptr_value = &(ptr_owiStruct->value);
getUnsignedNumericValueFromParameterIndex( 2 , &value );
ptr_owiStruct->init_flag = ( 0 != value );
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename,
PSTR("second argument sets init_flag to: %i "), ptr_owiStruct->init_flag );
}
else /* command ID/value/argument */
{
/* command */
strncpy( ptr_owiStruct->command, setParameter[1], MAX_LENGTH_PARAMETER);
/* 2nd argument */
/* is 2nd argument ID ?*/
if ( 0 == isParameterIDThenFillOwiStructure(2) )
{
/* numeric value/flag? */
if ( isNumericArgument(setParameter[1], MAX_LENGTH_PARAMETER))
{
getUnsignedNumericValueFromParameterIndex( 1 , &value );
ptr_owiStruct->value = (uint16_t) (0xFFFF & value);
ptr_owiStruct->ptr_value = &(ptr_owiStruct->value);
getUnsignedNumericValueFromParameterIndex( 2 , &value );
ptr_owiStruct->init_flag = ( 0 != value );
printDebug_p(debugLevelEventDebug, debugSystemOWI, __LINE__, filename,
PSTR("second argument sets init_flag to: %i "), ptr_owiStruct->init_flag );
}
}
}
}
break;
case 3:
/* args:
* ID convert_flag init_flag
* ID value init_flag
* ID command value
* command arguments arguments
* command ID value
*/
/* ID */
isParameterIDThenFillOwiStructure(1);
/* ID value/flag flag*/
if (TRUE == ptr_owiStruct->idSelect_flag)
{
/* second argument can either be value (write mode) or convert_flag (read_mode), indistinguishable)
* assigning to value*/
ptr_owiStruct->value = (uint16_t) strtoul(setParameter [2], &ptr_setParameter[2], 16);
ptr_owiStruct->ptr_value = &(ptr_owiStruct->value);
/* third argument can only be a the init_flag*/
ptr_owiStruct->init_flag = ( 0 != (uint16_t) strtoul(setParameter [3], &ptr_setParameter[3], 16));
}
else /* command arguments */
{
strncpy( ptr_owiStruct->command, setParameter[1], MAX_LENGTH_PARAMETER);
}
break;
default:
if (numberOfArguments < MAX_PARAMETER)
{
/* args:
* command arguments ... arguments
*/
/* take first argument as command */
strncpy( ptr_owiStruct->command, setParameter[1], MAX_LENGTH_PARAMETER);
}
else
{
CommunicationError_p(ERRA, dynamicMessage_ErrorIndex, TRUE, PSTR("invalid number of arguments"));
return 1;