forked from Max-Coin/cgminer
-
Notifications
You must be signed in to change notification settings - Fork 0
/
fpgautils.c
610 lines (526 loc) · 14.6 KB
/
fpgautils.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
/*
* Copyright 2013 Con Kolivas <[email protected]>
* Copyright 2012 Luke Dashjr
* Copyright 2012 Andrew Smith
*
* 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.
*/
#include "config.h"
#include <sys/types.h>
#include <dirent.h>
#include <string.h>
#include "miner.h"
#ifndef WIN32
#include <errno.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#endif
#else
#include <windows.h>
#include <io.h>
#endif
#ifdef HAVE_LIBUDEV
#include <libudev.h>
#include <sys/ioctl.h>
#endif
#include "elist.h"
#include "logging.h"
#include "miner.h"
#include "fpgautils.h"
#ifdef HAVE_LIBUDEV
int serial_autodetect_udev(detectone_func_t detectone, const char*prodname)
{
struct udev *udev = udev_new();
struct udev_enumerate *enumerate = udev_enumerate_new(udev);
struct udev_list_entry *list_entry;
char found = 0;
udev_enumerate_add_match_subsystem(enumerate, "tty");
udev_enumerate_add_match_property(enumerate, "ID_MODEL", prodname);
udev_enumerate_scan_devices(enumerate);
udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) {
struct udev_device *device = udev_device_new_from_syspath(
udev_enumerate_get_udev(enumerate),
udev_list_entry_get_name(list_entry)
);
if (!device)
continue;
const char *devpath = udev_device_get_devnode(device);
if (devpath && detectone(devpath))
++found;
udev_device_unref(device);
}
udev_enumerate_unref(enumerate);
udev_unref(udev);
return found;
}
#else
int serial_autodetect_udev(__maybe_unused detectone_func_t detectone, __maybe_unused const char*prodname)
{
return 0;
}
#endif
int serial_autodetect_devserial(__maybe_unused detectone_func_t detectone, __maybe_unused const char*prodname)
{
#ifndef WIN32
DIR *D;
struct dirent *de;
const char udevdir[] = "/dev/serial/by-id";
char devpath[sizeof(udevdir) + 1 + NAME_MAX];
char *devfile = devpath + sizeof(udevdir);
char found = 0;
D = opendir(udevdir);
if (!D)
return 0;
memcpy(devpath, udevdir, sizeof(udevdir) - 1);
devpath[sizeof(udevdir) - 1] = '/';
while ( (de = readdir(D)) ) {
if (!strstr(de->d_name, prodname))
continue;
strcpy(devfile, de->d_name);
if (detectone(devpath))
++found;
}
closedir(D);
return found;
#else
return 0;
#endif
}
int _serial_detect(struct device_drv *drv, detectone_func_t detectone, autoscan_func_t autoscan, bool forceauto)
{
struct string_elist *iter, *tmp;
const char *dev, *colon;
bool inhibitauto = false;
char found = 0;
size_t namel = strlen(drv->name);
size_t dnamel = strlen(drv->dname);
list_for_each_entry_safe(iter, tmp, &scan_devices, list) {
dev = iter->string;
if ((colon = strchr(dev, ':')) && colon[1] != '\0') {
size_t idlen = colon - dev;
// allow either name:device or dname:device
if ((idlen != namel || strncasecmp(dev, drv->name, idlen))
&& (idlen != dnamel || strncasecmp(dev, drv->dname, idlen)))
continue;
dev = colon + 1;
}
if (!strcmp(dev, "auto"))
forceauto = true;
else if (!strcmp(dev, "noauto"))
inhibitauto = true;
else if (detectone(dev)) {
string_elist_del(iter);
inhibitauto = true;
++found;
}
}
if ((forceauto || !inhibitauto) && autoscan)
found += autoscan();
return found;
}
// This code is purely for debugging but is very useful for that
// It also took quite a bit of effort so I left it in
// #define TERMIOS_DEBUG 1
// Here to include it at compile time
// It's off by default
#ifndef WIN32
#ifdef TERMIOS_DEBUG
#define BITSSET "Y"
#define BITSNOTSET "N"
int tiospeed(speed_t speed)
{
switch (speed) {
case B0:
return 0;
case B50:
return 50;
case B75:
return 75;
case B110:
return 110;
case B134:
return 134;
case B150:
return 150;
case B200:
return 200;
case B300:
return 300;
case B600:
return 600;
case B1200:
return 1200;
case B1800:
return 1800;
case B2400:
return 2400;
case B4800:
return 4800;
case B9600:
return 9600;
case B19200:
return 19200;
case B38400:
return 38400;
case B57600:
return 57600;
case B115200:
return 115200;
case B230400:
return 230400;
case B460800:
return 460800;
case B500000:
return 500000;
case B576000:
return 576000;
case B921600:
return 921600;
case B1000000:
return 1000000;
case B1152000:
return 1152000;
case B1500000:
return 1500000;
case B2000000:
return 2000000;
case B2500000:
return 2500000;
case B3000000:
return 3000000;
case B3500000:
return 3500000;
case B4000000:
return 4000000;
default:
return -1;
}
}
void termios_debug(const char *devpath, struct termios *my_termios, const char *msg)
{
applog(LOG_DEBUG, "TIOS: Open %s attributes %s: ispeed=%d ospeed=%d",
devpath, msg, tiospeed(cfgetispeed(my_termios)), tiospeed(cfgetispeed(my_termios)));
#define ISSETI(b) ((my_termios->c_iflag | (b)) ? BITSSET : BITSNOTSET)
applog(LOG_DEBUG, "TIOS: c_iflag: IGNBRK=%s BRKINT=%s IGNPAR=%s PARMRK=%s INPCK=%s ISTRIP=%s INLCR=%s IGNCR=%s ICRNL=%s IUCLC=%s IXON=%s IXANY=%s IOFF=%s IMAXBEL=%s IUTF8=%s",
ISSETI(IGNBRK), ISSETI(BRKINT), ISSETI(IGNPAR), ISSETI(PARMRK),
ISSETI(INPCK), ISSETI(ISTRIP), ISSETI(INLCR), ISSETI(IGNCR),
ISSETI(ICRNL), ISSETI(IUCLC), ISSETI(IXON), ISSETI(IXANY),
ISSETI(IXOFF), ISSETI(IMAXBEL), ISSETI(IUTF8));
#define ISSETO(b) ((my_termios->c_oflag | (b)) ? BITSSET : BITSNOTSET)
#define VALO(b) (my_termios->c_oflag | (b))
applog(LOG_DEBUG, "TIOS: c_oflag: OPOST=%s OLCUC=%s ONLCR=%s OCRNL=%s ONOCR=%s ONLRET=%s OFILL=%s OFDEL=%s NLDLY=%d CRDLY=%d TABDLY=%d BSDLY=%d VTDLY=%d FFDLY=%d",
ISSETO(OPOST), ISSETO(OLCUC), ISSETO(ONLCR), ISSETO(OCRNL),
ISSETO(ONOCR), ISSETO(ONLRET), ISSETO(OFILL), ISSETO(OFDEL),
VALO(NLDLY), VALO(CRDLY), VALO(TABDLY), VALO(BSDLY),
VALO(VTDLY), VALO(FFDLY));
#define ISSETC(b) ((my_termios->c_cflag | (b)) ? BITSSET : BITSNOTSET)
#define VALC(b) (my_termios->c_cflag | (b))
applog(LOG_DEBUG, "TIOS: c_cflag: CBAUDEX=%s CSIZE=%d CSTOPB=%s CREAD=%s PARENB=%s PARODD=%s HUPCL=%s CLOCAL=%s"
#ifdef LOBLK
" LOBLK=%s"
#endif
" CMSPAR=%s CRTSCTS=%s",
ISSETC(CBAUDEX), VALC(CSIZE), ISSETC(CSTOPB), ISSETC(CREAD),
ISSETC(PARENB), ISSETC(PARODD), ISSETC(HUPCL), ISSETC(CLOCAL),
#ifdef LOBLK
ISSETC(LOBLK),
#endif
ISSETC(CMSPAR), ISSETC(CRTSCTS));
#define ISSETL(b) ((my_termios->c_lflag | (b)) ? BITSSET : BITSNOTSET)
applog(LOG_DEBUG, "TIOS: c_lflag: ISIG=%s ICANON=%s XCASE=%s ECHO=%s ECHOE=%s ECHOK=%s ECHONL=%s ECHOCTL=%s ECHOPRT=%s ECHOKE=%s"
#ifdef DEFECHO
" DEFECHO=%s"
#endif
" FLUSHO=%s NOFLSH=%s TOSTOP=%s PENDIN=%s IEXTEN=%s",
ISSETL(ISIG), ISSETL(ICANON), ISSETL(XCASE), ISSETL(ECHO),
ISSETL(ECHOE), ISSETL(ECHOK), ISSETL(ECHONL), ISSETL(ECHOCTL),
ISSETL(ECHOPRT), ISSETL(ECHOKE),
#ifdef DEFECHO
ISSETL(DEFECHO),
#endif
ISSETL(FLUSHO), ISSETL(NOFLSH), ISSETL(TOSTOP), ISSETL(PENDIN),
ISSETL(IEXTEN));
#define VALCC(b) (my_termios->c_cc[b])
applog(LOG_DEBUG, "TIOS: c_cc: VINTR=0x%02x VQUIT=0x%02x VERASE=0x%02x VKILL=0x%02x VEOF=0x%02x VMIN=%u VEOL=0x%02x VTIME=%u VEOL2=0x%02x"
#ifdef VSWTCH
" VSWTCH=0x%02x"
#endif
" VSTART=0x%02x VSTOP=0x%02x VSUSP=0x%02x"
#ifdef VDSUSP
" VDSUSP=0x%02x"
#endif
" VLNEXT=0x%02x VWERASE=0x%02x VREPRINT=0x%02x VDISCARD=0x%02x"
#ifdef VSTATUS
" VSTATUS=0x%02x"
#endif
,
VALCC(VINTR), VALCC(VQUIT), VALCC(VERASE), VALCC(VKILL),
VALCC(VEOF), VALCC(VMIN), VALCC(VEOL), VALCC(VTIME),
VALCC(VEOL2),
#ifdef VSWTCH
VALCC(VSWTCH),
#endif
VALCC(VSTART), VALCC(VSTOP), VALCC(VSUSP),
#ifdef VDSUSP
VALCC(VDSUSP),
#endif
VALCC(VLNEXT), VALCC(VWERASE),
VALCC(VREPRINT), VALCC(VDISCARD)
#ifdef VSTATUS
,VALCC(VSTATUS)
#endif
);
}
#endif
#endif
int serial_open(const char *devpath, unsigned long baud, signed short timeout, bool purge)
{
#ifdef WIN32
HANDLE hSerial = CreateFile(devpath, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
if (unlikely(hSerial == INVALID_HANDLE_VALUE))
{
DWORD e = GetLastError();
switch (e) {
case ERROR_ACCESS_DENIED:
applog(LOG_ERR, "Do not have user privileges required to open %s", devpath);
break;
case ERROR_SHARING_VIOLATION:
applog(LOG_ERR, "%s is already in use by another process", devpath);
break;
default:
applog(LOG_DEBUG, "Open %s failed, GetLastError:%d", devpath, (int)e);
break;
}
return -1;
}
// thanks to af_newbie for pointers about this
COMMCONFIG comCfg = {0};
comCfg.dwSize = sizeof(COMMCONFIG);
comCfg.wVersion = 1;
comCfg.dcb.DCBlength = sizeof(DCB);
comCfg.dcb.BaudRate = baud;
comCfg.dcb.fBinary = 1;
comCfg.dcb.fDtrControl = DTR_CONTROL_ENABLE;
comCfg.dcb.fRtsControl = RTS_CONTROL_ENABLE;
comCfg.dcb.ByteSize = 8;
SetCommConfig(hSerial, &comCfg, sizeof(comCfg));
// Code must specify a valid timeout value (0 means don't timeout)
const DWORD ctoms = (timeout * 100);
COMMTIMEOUTS cto = {ctoms, 0, ctoms, 0, ctoms};
SetCommTimeouts(hSerial, &cto);
if (purge) {
PurgeComm(hSerial, PURGE_RXABORT);
PurgeComm(hSerial, PURGE_TXABORT);
PurgeComm(hSerial, PURGE_RXCLEAR);
PurgeComm(hSerial, PURGE_TXCLEAR);
}
return _open_osfhandle((intptr_t)hSerial, 0);
#else
int fdDev = open(devpath, O_RDWR | O_CLOEXEC | O_NOCTTY);
if (unlikely(fdDev == -1))
{
if (errno == EACCES)
applog(LOG_ERR, "Do not have user privileges required to open %s", devpath);
else
applog(LOG_DEBUG, "Open %s failed, errno:%d", devpath, errno);
return -1;
}
struct termios my_termios;
tcgetattr(fdDev, &my_termios);
#ifdef TERMIOS_DEBUG
termios_debug(devpath, &my_termios, "before");
#endif
switch (baud) {
case 0:
break;
case 19200:
cfsetispeed(&my_termios, B19200);
cfsetospeed(&my_termios, B19200);
break;
case 38400:
cfsetispeed(&my_termios, B38400);
cfsetospeed(&my_termios, B38400);
break;
case 57600:
cfsetispeed(&my_termios, B57600);
cfsetospeed(&my_termios, B57600);
break;
case 115200:
cfsetispeed(&my_termios, B115200);
cfsetospeed(&my_termios, B115200);
break;
// TODO: try some higher speeds with the Icarus and BFL to see
// if they support them and if setting them makes any difference
// N.B. B3000000 doesn't work on Icarus
default:
applog(LOG_WARNING, "Unrecognized baud rate: %lu", baud);
}
my_termios.c_cflag &= ~(CSIZE | PARENB);
my_termios.c_cflag |= CS8;
my_termios.c_cflag |= CREAD;
my_termios.c_cflag |= CLOCAL;
my_termios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK |
ISTRIP | INLCR | IGNCR | ICRNL | IXON);
my_termios.c_oflag &= ~OPOST;
my_termios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
// Code must specify a valid timeout value (0 means don't timeout)
my_termios.c_cc[VTIME] = (cc_t)timeout;
my_termios.c_cc[VMIN] = 0;
#ifdef TERMIOS_DEBUG
termios_debug(devpath, &my_termios, "settings");
#endif
tcsetattr(fdDev, TCSANOW, &my_termios);
#ifdef TERMIOS_DEBUG
tcgetattr(fdDev, &my_termios);
termios_debug(devpath, &my_termios, "after");
#endif
if (purge)
tcflush(fdDev, TCIOFLUSH);
return fdDev;
#endif
}
ssize_t _serial_read(int fd, char *buf, size_t bufsiz, char *eol)
{
ssize_t len, tlen = 0;
while (bufsiz) {
len = read(fd, buf, eol ? 1 : bufsiz);
if (unlikely(len == -1))
break;
tlen += len;
if (eol && *eol == buf[0])
break;
buf += len;
bufsiz -= len;
}
return tlen;
}
static FILE *_open_bitstream(const char *path, const char *subdir, const char *filename)
{
char fullpath[PATH_MAX];
strcpy(fullpath, path);
strcat(fullpath, "/");
if (subdir) {
strcat(fullpath, subdir);
strcat(fullpath, "/");
}
strcat(fullpath, filename);
return fopen(fullpath, "rb");
}
#define _open_bitstream(path, subdir) do { \
f = _open_bitstream(path, subdir, filename); \
if (f) \
return f; \
} while(0)
#define _open_bitstream3(path) do { \
_open_bitstream(path, dname); \
_open_bitstream(path, "bitstreams"); \
_open_bitstream(path, NULL); \
} while(0)
FILE *open_bitstream(const char *dname, const char *filename)
{
FILE *f;
_open_bitstream3(opt_kernel_path);
_open_bitstream3(cgminer_path);
_open_bitstream3(".");
return NULL;
}
#ifndef WIN32
static bool _select_wait_read(int fd, struct timeval *timeout)
{
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
if (select(fd+1, &rfds, NULL, NULL, timeout) > 0)
return true;
else
return false;
}
// Default timeout 100ms - only for device initialisation
const struct timeval tv_timeout_default = { 0, 100000 };
// Default inter character timeout = 1ms - only for device initialisation
const struct timeval tv_inter_char_default = { 0, 1000 };
// Device initialisation function - NOT for work processing
size_t _select_read(int fd, char *buf, size_t bufsiz, struct timeval *timeout, struct timeval *char_timeout, int finished)
{
struct timeval tv_time, tv_char;
ssize_t siz, red = 0;
char got;
// timeout is the maximum time to wait for the first character
tv_time.tv_sec = timeout->tv_sec;
tv_time.tv_usec = timeout->tv_usec;
if (!_select_wait_read(fd, &tv_time))
return 0;
while (4242) {
if ((siz = read(fd, buf, 1)) < 0)
return red;
got = *buf;
buf += siz;
red += siz;
bufsiz -= siz;
if (bufsiz < 1 || (finished >= 0 && got == finished))
return red;
// char_timeout is the maximum time to wait for each subsequent character
// this is OK for initialisation, but bad for work processing
// work processing MUST have a fixed size so this doesn't come into play
tv_char.tv_sec = char_timeout->tv_sec;
tv_char.tv_usec = char_timeout->tv_usec;
if (!_select_wait_read(fd, &tv_char))
return red;
}
return red;
}
// Device initialisation function - NOT for work processing
size_t _select_write(int fd, char *buf, size_t siz, struct timeval *timeout)
{
struct timeval tv_time, tv_now, tv_finish;
fd_set rfds;
ssize_t wrote = 0, ret;
cgtime(&tv_now);
timeradd(&tv_now, timeout, &tv_finish);
// timeout is the maximum time to spend trying to write
tv_time.tv_sec = timeout->tv_sec;
tv_time.tv_usec = timeout->tv_usec;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
while (siz > 0 && (tv_now.tv_sec < tv_finish.tv_sec || (tv_now.tv_sec == tv_finish.tv_sec && tv_now.tv_usec < tv_finish.tv_usec)) && select(fd+1, NULL, &rfds, NULL, &tv_time) > 0) {
if ((ret = write(fd, buf, 1)) > 0) {
buf++;
wrote++;
siz--;
}
else if (ret < 0)
return wrote;
cgtime(&tv_now);
}
return wrote;
}
int get_serial_cts(int fd)
{
int flags;
if (!fd)
return -1;
ioctl(fd, TIOCMGET, &flags);
return (flags & TIOCM_CTS) ? 1 : 0;
}
#else
int get_serial_cts(const int fd)
{
if (!fd)
return -1;
const HANDLE fh = (HANDLE)_get_osfhandle(fd);
if (!fh)
return -1;
DWORD flags;
if (!GetCommModemStatus(fh, &flags))
return -1;
return (flags & MS_CTS_ON) ? 1 : 0;
}
#endif // ! WIN32