forked from ckolivas/cgminer
-
Notifications
You must be signed in to change notification settings - Fork 0
/
driver-icarus.c
1221 lines (1008 loc) · 33.9 KB
/
driver-icarus.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
/*
* Copyright 2012-2013 Andrew Smith
* Copyright 2012 Xiangfu <xiangfu@openmobilefree.com>
* Copyright 2013 Con Kolivas <kernel@kolivas.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
/*
* Those code should be works fine with V2 and V3 bitstream of Icarus.
* Operation:
* No detection implement.
* Input: 64B = 32B midstate + 20B fill bytes + last 12 bytes of block head.
* Return: send back 32bits immediately when Icarus found a valid nonce.
* no query protocol implemented here, if no data send back in ~11.3
* seconds (full cover time on 32bit nonce range by 380MH/s speed)
* just send another work.
* Notice:
* 1. Icarus will start calculate when you push a work to them, even they
* are busy.
* 2. The 2 FPGAs on Icarus will distribute the job, one will calculate the
* 0 ~ 7FFFFFFF, another one will cover the 80000000 ~ FFFFFFFF.
* 3. It's possible for 2 FPGAs both find valid nonce in the meantime, the 2
* valid nonce will all be send back.
* 4. Icarus will stop work when: a valid nonce has been found or 32 bits
* nonce range is completely calculated.
*/
#include <float.h>
#include <limits.h>
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <strings.h>
#include <sys/time.h>
#include <unistd.h>
#include "config.h"
#ifdef WIN32
#include <windows.h>
#endif
#include "compat.h"
#include "miner.h"
#include "usbutils.h"
// The serial I/O speed - Linux uses a define 'B115200' in bits/termios.h
#define ICARUS_IO_SPEED 115200
// The size of a successful nonce read
#define ICARUS_READ_SIZE 4
#define AMU_PREF_PACKET 256
#define BLT_PREF_PACKET 512
#define ICA_PREF_PACKET 256
// Ensure the sizes are correct for the Serial read
#if (ICARUS_READ_SIZE != 4)
#error ICARUS_READ_SIZE must be 4
#endif
#define ASSERT1(condition) __maybe_unused static char sizeof_uint32_t_must_be_4[(condition)?1:-1]
ASSERT1(sizeof(uint32_t) == 4);
// TODO: USB? Different calculation? - see usbstats to work it out e.g. 1/2 of normal send time
// or even use that number? 1/2
// #define ICARUS_READ_TIME(baud) ((double)ICARUS_READ_SIZE * (double)8.0 / (double)(baud))
// maybe 1ms?
#define ICARUS_READ_TIME(baud) (0.001)
// USB ms timeout to wait - user specified timeouts are multiples of this
#define ICARUS_WAIT_TIMEOUT 100
// Defined in multiples of ICARUS_WAIT_TIMEOUT
// Must of course be greater than ICARUS_READ_COUNT_TIMING/ICARUS_WAIT_TIMEOUT
// There's no need to have this bigger, since the overhead/latency of extra work
// is pretty small once you get beyond a 10s nonce range time and 10s also
// means that nothing slower than 429MH/s can go idle so most icarus devices
// will always mine without idling
#define ICARUS_READ_TIME_LIMIT_MAX 100
// In timing mode: Default starting value until an estimate can be obtained
// 5000 ms allows for up to a ~840MH/s device
#define ICARUS_READ_COUNT_TIMING 5000
#define ICARUS_READ_COUNT_MIN ICARUS_WAIT_TIMEOUT
#define SECTOMS(s) ((int)((s) * 1000))
// How many ms below the expected completion time to abort work
// extra in case the last read is delayed
#define ICARUS_READ_REDUCE ((int)(ICARUS_WAIT_TIMEOUT * 1.5))
// For a standard Icarus REV3 (to 5 places)
// Since this rounds up a the last digit - it is a slight overestimate
// Thus the hash rate will be a VERY slight underestimate
// (by a lot less than the displayed accuracy)
// Minor inaccuracy of these numbers doesn't affect the work done,
// only the displayed MH/s
#define ICARUS_REV3_HASH_TIME 0.0000000026316
#define LANCELOT_HASH_TIME 0.0000000025000
#define ASICMINERUSB_HASH_TIME 0.0000000029761
// TODO: What is it?
#define CAIRNSMORE1_HASH_TIME 0.0000000027000
// Per FPGA
#define CAIRNSMORE2_HASH_TIME 0.0000000066600
#define NANOSEC 1000000000.0
// Icarus Rev3 doesn't send a completion message when it finishes
// the full nonce range, so to avoid being idle we must abort the
// work (by starting a new work item) shortly before it finishes
//
// Thus we need to estimate 2 things:
// 1) How many hashes were done if the work was aborted
// 2) How high can the timeout be before the Icarus is idle,
// to minimise the number of work items started
// We set 2) to 'the calculated estimate' - ICARUS_READ_REDUCE
// to ensure the estimate ends before idle
//
// The simple calculation used is:
// Tn = Total time in seconds to calculate n hashes
// Hs = seconds per hash
// Xn = number of hashes
// W = code/usb overhead per work
//
// Rough but reasonable estimate:
// Tn = Hs * Xn + W (of the form y = mx + b)
//
// Thus:
// Line of best fit (using least squares)
//
// Hs = (n*Sum(XiTi)-Sum(Xi)*Sum(Ti))/(n*Sum(Xi^2)-Sum(Xi)^2)
// W = Sum(Ti)/n - (Hs*Sum(Xi))/n
//
// N.B. W is less when aborting work since we aren't waiting for the reply
// to be transferred back (ICARUS_READ_TIME)
// Calculating the hashes aborted at n seconds is thus just n/Hs
// (though this is still a slight overestimate due to code delays)
//
// Both below must be exceeded to complete a set of data
// Minimum how long after the first, the last data point must be
#define HISTORY_SEC 60
// Minimum how many points a single ICARUS_HISTORY should have
#define MIN_DATA_COUNT 5
// The value MIN_DATA_COUNT used is doubled each history until it exceeds:
#define MAX_MIN_DATA_COUNT 100
static struct timeval history_sec = { HISTORY_SEC, 0 };
// Store the last INFO_HISTORY data sets
// [0] = current data, not yet ready to be included as an estimate
// Each new data set throws the last old set off the end thus
// keeping a ongoing average of recent data
#define INFO_HISTORY 10
struct ICARUS_HISTORY {
struct timeval finish;
double sumXiTi;
double sumXi;
double sumTi;
double sumXi2;
uint32_t values;
uint32_t hash_count_min;
uint32_t hash_count_max;
};
enum timing_mode { MODE_DEFAULT, MODE_SHORT, MODE_LONG, MODE_VALUE };
static const char *MODE_DEFAULT_STR = "default";
static const char *MODE_SHORT_STR = "short";
static const char *MODE_SHORT_STREQ = "short=";
static const char *MODE_LONG_STR = "long";
static const char *MODE_LONG_STREQ = "long=";
static const char *MODE_VALUE_STR = "value";
static const char *MODE_UNKNOWN_STR = "unknown";
struct ICARUS_INFO {
int intinfo;
// time to calculate the golden_ob
uint64_t golden_hashes;
struct timeval golden_tv;
struct ICARUS_HISTORY history[INFO_HISTORY+1];
uint32_t min_data_count;
// seconds per Hash
double Hs;
// ms til we abort
int read_time;
// ms limit for (short=/long=) read_time
int read_time_limit;
enum timing_mode timing_mode;
bool do_icarus_timing;
double fullnonce;
int count;
double W;
uint32_t values;
uint64_t hash_count_range;
// Determine the cost of history processing
// (which will only affect W)
uint64_t history_count;
struct timeval history_time;
// icarus-options
int baud;
int work_division;
int fpga_count;
uint32_t nonce_mask;
bool initialised;
};
#define END_CONDITION 0x0000ffff
// Looking for options in --icarus-timing and --icarus-options:
//
// Code increments this each time we start to look at a device
// However, this means that if other devices are checked by
// the Icarus code (e.g. Avalon only as at 20130517)
// they will count in the option offset
//
// This, however, is deterministic so that's OK
//
// If we were to increment after successfully finding an Icarus
// that would be random since an Icarus may fail and thus we'd
// not be able to predict the option order
//
// Devices are checked in the order libusb finds them which is ?
//
static int option_offset = -1;
struct device_drv icarus_drv;
/*
#define ICA_BUFSIZ (0x200)
static void transfer_read(struct cgpu_info *icarus, uint8_t request_type, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, char *buf, int bufsiz, int *amount, enum usb_cmds cmd)
{
int err;
err = usb_transfer_read(icarus, request_type, bRequest, wValue, wIndex, buf, bufsiz, amount, cmd);
applog(LOG_DEBUG, "%s: cgid %d %s got err %d",
icarus->drv->name, icarus->cgminer_id,
usb_cmdname(cmd), err);
}
*/
static void _transfer(struct cgpu_info *icarus, uint8_t request_type, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint32_t *data, int siz, enum usb_cmds cmd)
{
int err;
err = usb_transfer_data(icarus, request_type, bRequest, wValue, wIndex, data, siz, cmd);
applog(LOG_DEBUG, "%s: cgid %d %s got err %d",
icarus->drv->name, icarus->cgminer_id,
usb_cmdname(cmd), err);
}
#define transfer(icarus, request_type, bRequest, wValue, wIndex, cmd) \
_transfer(icarus, request_type, bRequest, wValue, wIndex, NULL, 0, cmd)
static void icarus_initialise(struct cgpu_info *icarus, int baud)
{
struct ICARUS_INFO *info = (struct ICARUS_INFO *)(icarus->device_data);
uint16_t wValue, wIndex;
enum sub_ident ident;
int interface;
if (icarus->usbinfo.nodev)
return;
usb_set_cps(icarus, baud / 10);
usb_enable_cps(icarus);
interface = _usb_interface(icarus, info->intinfo);
ident = usb_ident(icarus);
switch (ident) {
case IDENT_BLT:
case IDENT_LLT:
case IDENT_CMR1:
case IDENT_CMR2:
usb_set_pps(icarus, BLT_PREF_PACKET);
// Reset
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_RESET, FTDI_VALUE_RESET,
interface, C_RESET);
if (icarus->usbinfo.nodev)
return;
// Latency
_usb_ftdi_set_latency(icarus, info->intinfo);
if (icarus->usbinfo.nodev)
return;
// Set data control
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_DATA, FTDI_VALUE_DATA_BLT,
interface, C_SETDATA);
if (icarus->usbinfo.nodev)
return;
// default to BLT/LLT 115200
wValue = FTDI_VALUE_BAUD_BLT;
wIndex = FTDI_INDEX_BAUD_BLT;
if (ident == IDENT_CMR1 || ident == IDENT_CMR2) {
switch (baud) {
case 115200:
wValue = FTDI_VALUE_BAUD_CMR_115;
wIndex = FTDI_INDEX_BAUD_CMR_115;
break;
case 57600:
wValue = FTDI_VALUE_BAUD_CMR_57;
wIndex = FTDI_INDEX_BAUD_CMR_57;
break;
default:
quit(1, "icarus_intialise() invalid baud (%d) for Cairnsmore1", baud);
break;
}
}
// Set the baud
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_BAUD, wValue,
(wIndex & 0xff00) | interface, C_SETBAUD);
if (icarus->usbinfo.nodev)
return;
// Set Modem Control
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_MODEM, FTDI_VALUE_MODEM,
interface, C_SETMODEM);
if (icarus->usbinfo.nodev)
return;
// Set Flow Control
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_FLOW, FTDI_VALUE_FLOW,
interface, C_SETFLOW);
if (icarus->usbinfo.nodev)
return;
// Clear any sent data
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_RESET, FTDI_VALUE_PURGE_TX,
interface, C_PURGETX);
if (icarus->usbinfo.nodev)
return;
// Clear any received data
transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_RESET, FTDI_VALUE_PURGE_RX,
interface, C_PURGERX);
break;
case IDENT_ICA:
usb_set_pps(icarus, ICA_PREF_PACKET);
// Set Data Control
transfer(icarus, PL2303_CTRL_OUT, PL2303_REQUEST_CTRL, PL2303_VALUE_CTRL,
interface, C_SETDATA);
if (icarus->usbinfo.nodev)
return;
// Set Line Control
uint32_t ica_data[2] = { PL2303_VALUE_LINE0, PL2303_VALUE_LINE1 };
_transfer(icarus, PL2303_CTRL_OUT, PL2303_REQUEST_LINE, PL2303_VALUE_LINE,
interface, &ica_data[0], PL2303_VALUE_LINE_SIZE, C_SETLINE);
if (icarus->usbinfo.nodev)
return;
// Vendor
transfer(icarus, PL2303_VENDOR_OUT, PL2303_REQUEST_VENDOR, PL2303_VALUE_VENDOR,
interface, C_VENDOR);
break;
case IDENT_AMU:
usb_set_pps(icarus, AMU_PREF_PACKET);
// Enable the UART
transfer(icarus, CP210X_TYPE_OUT, CP210X_REQUEST_IFC_ENABLE,
CP210X_VALUE_UART_ENABLE,
interface, C_ENABLE_UART);
if (icarus->usbinfo.nodev)
return;
// Set data control
transfer(icarus, CP210X_TYPE_OUT, CP210X_REQUEST_DATA, CP210X_VALUE_DATA,
interface, C_SETDATA);
if (icarus->usbinfo.nodev)
return;
// Set the baud
uint32_t data = CP210X_DATA_BAUD;
_transfer(icarus, CP210X_TYPE_OUT, CP210X_REQUEST_BAUD, 0,
interface, &data, sizeof(data), C_SETBAUD);
break;
default:
quit(1, "icarus_intialise() called with invalid %s cgid %i ident=%d",
icarus->drv->name, icarus->cgminer_id, ident);
}
info->initialised = true;
}
static void rev(unsigned char *s, size_t l)
{
size_t i, j;
unsigned char t;
for (i = 0, j = l - 1; i < j; i++, j--) {
t = s[i];
s[i] = s[j];
s[j] = t;
}
}
#define ICA_NONCE_ERROR -1
#define ICA_NONCE_OK 0
#define ICA_NONCE_RESTART 1
#define ICA_NONCE_TIMEOUT 2
static int icarus_get_nonce(struct cgpu_info *icarus, unsigned char *buf, struct timeval *tv_start, struct timeval *tv_finish, struct thr_info *thr, int read_time)
{
struct ICARUS_INFO *info = (struct ICARUS_INFO *)(icarus->device_data);
struct timeval read_start, read_finish;
int err, amt;
int rc = 0;
int read_amount = ICARUS_READ_SIZE;
bool first = true;
cgtime(tv_start);
while (true) {
if (icarus->usbinfo.nodev)
return ICA_NONCE_ERROR;
cgtime(&read_start);
err = usb_read_ii_timeout(icarus, info->intinfo,
(char *)buf, read_amount, &amt,
ICARUS_WAIT_TIMEOUT, C_GETRESULTS);
cgtime(&read_finish);
if (err < 0 && err != LIBUSB_ERROR_TIMEOUT) {
applog(LOG_ERR, "%s%i: Comms error (rerr=%d amt=%d)",
icarus->drv->name, icarus->device_id, err, amt);
dev_error(icarus, REASON_DEV_COMMS_ERROR);
return ICA_NONCE_ERROR;
}
if (first)
copy_time(tv_finish, &read_finish);
if (amt >= read_amount)
return ICA_NONCE_OK;
rc = SECTOMS(tdiff(&read_finish, tv_start));
if (rc >= read_time) {
if (amt > 0)
applog(LOG_DEBUG, "Icarus Read: Timeout reading for %d ms", rc);
else
applog(LOG_DEBUG, "Icarus Read: No data for %d ms", rc);
return ICA_NONCE_TIMEOUT;
}
if (thr && thr->work_restart) {
if (opt_debug) {
applog(LOG_DEBUG,
"Icarus Read: Work restart at %d ms", rc);
}
return ICA_NONCE_RESTART;
}
if (amt > 0) {
buf += amt;
read_amount -= amt;
first = false;
}
}
}
static const char *timing_mode_str(enum timing_mode timing_mode)
{
switch(timing_mode) {
case MODE_DEFAULT:
return MODE_DEFAULT_STR;
case MODE_SHORT:
return MODE_SHORT_STR;
case MODE_LONG:
return MODE_LONG_STR;
case MODE_VALUE:
return MODE_VALUE_STR;
default:
return MODE_UNKNOWN_STR;
}
}
static void set_timing_mode(int this_option_offset, struct cgpu_info *icarus)
{
struct ICARUS_INFO *info = (struct ICARUS_INFO *)(icarus->device_data);
enum sub_ident ident;
double Hs;
char buf[BUFSIZ+1];
char *ptr, *comma, *eq;
size_t max;
int i;
if (opt_icarus_timing == NULL)
buf[0] = '\0';
else {
ptr = opt_icarus_timing;
for (i = 0; i < this_option_offset; i++) {
comma = strchr(ptr, ',');
if (comma == NULL)
break;
ptr = comma + 1;
}
comma = strchr(ptr, ',');
if (comma == NULL)
max = strlen(ptr);
else
max = comma - ptr;
if (max > BUFSIZ)
max = BUFSIZ;
strncpy(buf, ptr, max);
buf[max] = '\0';
}
ident = usb_ident(icarus);
switch (ident) {
case IDENT_ICA:
info->Hs = ICARUS_REV3_HASH_TIME;
break;
case IDENT_BLT:
case IDENT_LLT:
info->Hs = LANCELOT_HASH_TIME;
break;
case IDENT_AMU:
info->Hs = ASICMINERUSB_HASH_TIME;
break;
case IDENT_CMR1:
info->Hs = CAIRNSMORE1_HASH_TIME;
break;
case IDENT_CMR2:
info->Hs = CAIRNSMORE2_HASH_TIME;
break;
default:
quit(1, "Icarus get_options() called with invalid %s ident=%d",
icarus->drv->name, ident);
}
info->read_time = 0;
info->read_time_limit = 0; // 0 = no limit
if (strcasecmp(buf, MODE_SHORT_STR) == 0) {
// short
info->read_time = ICARUS_READ_COUNT_TIMING;
info->timing_mode = MODE_SHORT;
info->do_icarus_timing = true;
} else if (strncasecmp(buf, MODE_SHORT_STREQ, strlen(MODE_SHORT_STREQ)) == 0) {
// short=limit
info->read_time = ICARUS_READ_COUNT_TIMING;
info->timing_mode = MODE_SHORT;
info->do_icarus_timing = true;
info->read_time_limit = atoi(&buf[strlen(MODE_SHORT_STREQ)]);
if (info->read_time_limit < 0)
info->read_time_limit = 0;
if (info->read_time_limit > ICARUS_READ_TIME_LIMIT_MAX)
info->read_time_limit = ICARUS_READ_TIME_LIMIT_MAX;
} else if (strcasecmp(buf, MODE_LONG_STR) == 0) {
// long
info->read_time = ICARUS_READ_COUNT_TIMING;
info->timing_mode = MODE_LONG;
info->do_icarus_timing = true;
} else if (strncasecmp(buf, MODE_LONG_STREQ, strlen(MODE_LONG_STREQ)) == 0) {
// long=limit
info->read_time = ICARUS_READ_COUNT_TIMING;
info->timing_mode = MODE_LONG;
info->do_icarus_timing = true;
info->read_time_limit = atoi(&buf[strlen(MODE_LONG_STREQ)]);
if (info->read_time_limit < 0)
info->read_time_limit = 0;
if (info->read_time_limit > ICARUS_READ_TIME_LIMIT_MAX)
info->read_time_limit = ICARUS_READ_TIME_LIMIT_MAX;
} else if ((Hs = atof(buf)) != 0) {
// ns[=read_time]
info->Hs = Hs / NANOSEC;
info->fullnonce = info->Hs * (((double)0xffffffff) + 1);
if ((eq = strchr(buf, '=')) != NULL)
info->read_time = atoi(eq+1) * ICARUS_WAIT_TIMEOUT;
if (info->read_time < ICARUS_READ_COUNT_MIN)
info->read_time = SECTOMS(info->fullnonce) - ICARUS_READ_REDUCE;
if (unlikely(info->read_time < ICARUS_READ_COUNT_MIN))
info->read_time = ICARUS_READ_COUNT_MIN;
info->timing_mode = MODE_VALUE;
info->do_icarus_timing = false;
} else {
// Anything else in buf just uses DEFAULT mode
info->fullnonce = info->Hs * (((double)0xffffffff) + 1);
if ((eq = strchr(buf, '=')) != NULL)
info->read_time = atoi(eq+1) * ICARUS_WAIT_TIMEOUT;
if (info->read_time < ICARUS_READ_COUNT_MIN)
info->read_time = SECTOMS(info->fullnonce) - ICARUS_READ_REDUCE;
if (unlikely(info->read_time < ICARUS_READ_COUNT_MIN))
info->read_time = ICARUS_READ_COUNT_MIN;
info->timing_mode = MODE_DEFAULT;
info->do_icarus_timing = false;
}
info->min_data_count = MIN_DATA_COUNT;
// All values are in multiples of ICARUS_WAIT_TIMEOUT
info->read_time_limit *= ICARUS_WAIT_TIMEOUT;
applog(LOG_DEBUG, "%s: cgid %d Init: mode=%s read_time=%dms limit=%dms Hs=%e",
icarus->drv->name, icarus->cgminer_id,
timing_mode_str(info->timing_mode),
info->read_time, info->read_time_limit, info->Hs);
}
static uint32_t mask(int work_division)
{
uint32_t nonce_mask = 0x7fffffff;
// yes we can calculate these, but this way it's easy to see what they are
switch (work_division) {
case 1:
nonce_mask = 0xffffffff;
break;
case 2:
nonce_mask = 0x7fffffff;
break;
case 4:
nonce_mask = 0x3fffffff;
break;
case 8:
nonce_mask = 0x1fffffff;
break;
default:
quit(1, "Invalid2 icarus-options for work_division (%d) must be 1, 2, 4 or 8", work_division);
}
return nonce_mask;
}
static void get_options(int this_option_offset, struct cgpu_info *icarus, int *baud, int *work_division, int *fpga_count)
{
char buf[BUFSIZ+1];
char *ptr, *comma, *colon, *colon2;
enum sub_ident ident;
size_t max;
int i, tmp;
if (opt_icarus_options == NULL)
buf[0] = '\0';
else {
ptr = opt_icarus_options;
for (i = 0; i < this_option_offset; i++) {
comma = strchr(ptr, ',');
if (comma == NULL)
break;
ptr = comma + 1;
}
comma = strchr(ptr, ',');
if (comma == NULL)
max = strlen(ptr);
else
max = comma - ptr;
if (max > BUFSIZ)
max = BUFSIZ;
strncpy(buf, ptr, max);
buf[max] = '\0';
}
ident = usb_ident(icarus);
switch (ident) {
case IDENT_ICA:
case IDENT_BLT:
case IDENT_LLT:
*baud = ICARUS_IO_SPEED;
*work_division = 2;
*fpga_count = 2;
break;
case IDENT_AMU:
*baud = ICARUS_IO_SPEED;
*work_division = 1;
*fpga_count = 1;
break;
case IDENT_CMR1:
*baud = ICARUS_IO_SPEED;
*work_division = 2;
*fpga_count = 2;
break;
case IDENT_CMR2:
*baud = ICARUS_IO_SPEED;
*work_division = 1;
*fpga_count = 1;
break;
default:
quit(1, "Icarus get_options() called with invalid %s ident=%d",
icarus->drv->name, ident);
}
if (*buf) {
colon = strchr(buf, ':');
if (colon)
*(colon++) = '\0';
if (*buf) {
tmp = atoi(buf);
switch (tmp) {
case 115200:
*baud = 115200;
break;
case 57600:
*baud = 57600;
break;
default:
quit(1, "Invalid icarus-options for baud (%s) must be 115200 or 57600", buf);
}
}
if (colon && *colon) {
colon2 = strchr(colon, ':');
if (colon2)
*(colon2++) = '\0';
if (*colon) {
tmp = atoi(colon);
if (tmp == 1 || tmp == 2 || tmp == 4 || tmp == 8) {
*work_division = tmp;
*fpga_count = tmp; // default to the same
} else {
quit(1, "Invalid icarus-options for work_division (%s) must be 1, 2, 4 or 8", colon);
}
}
if (colon2 && *colon2) {
tmp = atoi(colon2);
if (tmp > 0 && tmp <= *work_division)
*fpga_count = tmp;
else {
quit(1, "Invalid icarus-options for fpga_count (%s) must be >0 and <=work_division (%d)", colon2, *work_division);
}
}
}
}
}
static bool icarus_detect_one(struct libusb_device *dev, struct usb_find_devices *found)
{
int this_option_offset = ++option_offset;
struct ICARUS_INFO *info;
struct timeval tv_start, tv_finish;
// Block 171874 nonce = (0xa2870100) = 0x000187a2
// N.B. golden_ob MUST take less time to calculate
// than the timeout set in icarus_open()
// This one takes ~0.53ms on Rev3 Icarus
const char golden_ob[] =
"4679ba4ec99876bf4bfe086082b40025"
"4df6c356451471139a3afa71e48f544a"
"00000000000000000000000000000000"
"0000000087320b1a1426674f2fa722ce";
const char golden_nonce[] = "000187a2";
const uint32_t golden_nonce_val = 0x000187a2;
unsigned char ob_bin[64], nonce_bin[ICARUS_READ_SIZE];
char *nonce_hex;
int baud, uninitialised_var(work_division), uninitialised_var(fpga_count);
struct cgpu_info *icarus;
int ret, err, amount, tries;
bool ok;
icarus = usb_alloc_cgpu(&icarus_drv, 1);
if (!usb_init(icarus, dev, found))
goto shin;
usb_buffer_enable(icarus);
get_options(this_option_offset, icarus, &baud, &work_division, &fpga_count);
hex2bin(ob_bin, golden_ob, sizeof(ob_bin));
info = (struct ICARUS_INFO *)calloc(1, sizeof(struct ICARUS_INFO));
if (unlikely(!info))
quit(1, "Failed to malloc ICARUS_INFO");
icarus->device_data = (void *)info;
tries = 2;
ok = false;
while (!ok && tries-- > 0) {
icarus_initialise(icarus, baud);
err = usb_write(icarus, (char *)ob_bin, sizeof(ob_bin), &amount, C_SENDTESTWORK);
if (err != LIBUSB_SUCCESS || amount != sizeof(ob_bin))
continue;
memset(nonce_bin, 0, sizeof(nonce_bin));
ret = icarus_get_nonce(icarus, nonce_bin, &tv_start, &tv_finish, NULL, 100);
if (ret != ICA_NONCE_OK)
continue;
nonce_hex = bin2hex(nonce_bin, sizeof(nonce_bin));
if (strncmp(nonce_hex, golden_nonce, 8) == 0)
ok = true;
else {
if (tries < 0) {
applog(LOG_ERR,
"Icarus Detect: "
"Test failed at %s: get %s, should: %s",
icarus->device_path, nonce_hex, golden_nonce);
}
}
free(nonce_hex);
}
if (!ok)
goto unshin;
applog(LOG_DEBUG,
"Icarus Detect: "
"Test succeeded at %s: got %s",
icarus->device_path, golden_nonce);
/* We have a real Icarus! */
if (!add_cgpu(icarus))
goto unshin;
update_usb_stats(icarus);
applog(LOG_INFO, "%s%d: Found at %s",
icarus->drv->name, icarus->device_id, icarus->device_path);
applog(LOG_DEBUG, "%s%d: Init baud=%d work_division=%d fpga_count=%d",
icarus->drv->name, icarus->device_id, baud, work_division, fpga_count);
info->baud = baud;
info->work_division = work_division;
info->fpga_count = fpga_count;
info->nonce_mask = mask(work_division);
info->golden_hashes = (golden_nonce_val & info->nonce_mask) * fpga_count;
timersub(&tv_finish, &tv_start, &(info->golden_tv));
set_timing_mode(this_option_offset, icarus);
if (usb_ident(icarus) == IDENT_CMR2) {
int i;
for (i = 1; i < icarus->usbdev->found->intinfo_count; i++) {
struct cgpu_info *cgtmp;
struct ICARUS_INFO *intmp;
cgtmp = usb_copy_cgpu(icarus);
if (!cgtmp) {
applog(LOG_ERR, "%s%d: Init failed initinfo %d",
icarus->drv->name, icarus->device_id, i);
continue;
}
cgtmp->usbinfo.usbstat = USB_NOSTAT;
intmp = (struct ICARUS_INFO *)malloc(sizeof(struct ICARUS_INFO));
if (unlikely(!intmp))
quit(1, "Failed2 to malloc ICARUS_INFO");
cgtmp->device_data = (void *)intmp;
// Initialise everything to match
memcpy(intmp, info, sizeof(struct ICARUS_INFO));
intmp->intinfo = i;
icarus_initialise(cgtmp, baud);
if (!add_cgpu(cgtmp)) {
usb_uninit(cgtmp);
free(intmp);
continue;
}
update_usb_stats(cgtmp);
}
}
return true;
unshin:
usb_uninit(icarus);
free(info);
icarus->device_data = NULL;
shin:
icarus = usb_free_cgpu(icarus);
return false;
}
static void icarus_detect()
{
usb_detect(&icarus_drv, icarus_detect_one);
}
static bool icarus_prepare(__maybe_unused struct thr_info *thr)
{
// struct cgpu_info *icarus = thr->cgpu;
return true;
}
static int64_t icarus_scanhash(struct thr_info *thr, struct work *work,
__maybe_unused int64_t max_nonce)
{
struct cgpu_info *icarus = thr->cgpu;
struct ICARUS_INFO *info = (struct ICARUS_INFO *)(icarus->device_data);
int ret, err, amount;
unsigned char ob_bin[64], nonce_bin[ICARUS_READ_SIZE];
char *ob_hex;
uint32_t nonce;
int64_t hash_count;
struct timeval tv_start, tv_finish, elapsed;
struct timeval tv_history_start, tv_history_finish;
double Ti, Xi;
int curr_hw_errors, i;
bool was_hw_error;
struct ICARUS_HISTORY *history0, *history;
int count;
double Hs, W, fullnonce;
int read_time;
bool limited;
int64_t estimate_hashes;
uint32_t values;
int64_t hash_count_range;
// Device is gone
if (icarus->usbinfo.nodev)
return -1;
if (!info->initialised)
icarus_initialise(icarus, info->baud);
elapsed.tv_sec = elapsed.tv_usec = 0;
memset(ob_bin, 0, sizeof(ob_bin));
memcpy(ob_bin, work->midstate, 32);
memcpy(ob_bin + 52, work->data + 64, 12);
rev(ob_bin, 32);
rev(ob_bin + 52, 12);
// We only want results for the work we are about to send
usb_buffer_clear(icarus);
err = usb_write_ii(icarus, info->intinfo, (char *)ob_bin, sizeof(ob_bin), &amount, C_SENDWORK);
if (err < 0 || amount != sizeof(ob_bin)) {
applog(LOG_ERR, "%s%i: Comms error (werr=%d amt=%d)",
icarus->drv->name, icarus->device_id, err, amount);
dev_error(icarus, REASON_DEV_COMMS_ERROR);
icarus_initialise(icarus, info->baud);
return 0;
}
if (opt_debug) {
ob_hex = bin2hex(ob_bin, sizeof(ob_bin));
applog(LOG_DEBUG, "%s%d: sent %s",
icarus->drv->name, icarus->device_id, ob_hex);
free(ob_hex);
}