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ca3d84cc BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <fcntl.h> | |
45c59c8b BV |
25 | #include "libsigrok.h" |
26 | #include "libsigrok-internal.h" | |
ca3d84cc BV |
27 | #include "genericdmm.h" |
28 | ||
29 | ||
30 | extern SR_PRIV struct dmmchip dmmchip_fs9922; | |
31 | ||
7fc754a0 BV |
32 | static struct sr_hwopt victor_70c_vidpid[] = { |
33 | { SR_HWOPT_CONN, "1244.d237" }, | |
34 | { 0, NULL } | |
35 | }; | |
ca3d84cc BV |
36 | static struct dev_profile dev_profiles[] = { |
37 | { "victor-70c", "Victor", "70C", &dmmchip_fs9922, | |
7fc754a0 BV |
38 | DMM_TRANSPORT_USBHID, victor_70c_vidpid |
39 | }, | |
40 | { "mastech-va18b", "Mastech", "VA18B", NULL, DMM_TRANSPORT_SERIAL, NULL}, | |
41 | { NULL, NULL, NULL, NULL, 0, NULL } | |
ca3d84cc BV |
42 | }; |
43 | ||
44 | static const int hwcaps[] = { | |
45 | SR_HWCAP_MULTIMETER, | |
46 | SR_HWCAP_LIMIT_SAMPLES, | |
47 | SR_HWCAP_LIMIT_MSEC, | |
48 | SR_HWCAP_CONTINUOUS, | |
bbb40871 BV |
49 | SR_HWOPT_MODEL, |
50 | SR_HWOPT_CONN, | |
51 | SR_HWOPT_SERIALCOMM, | |
ca3d84cc BV |
52 | 0, |
53 | }; | |
54 | ||
55 | static const char *probe_names[] = { | |
56 | "Probe", | |
57 | NULL, | |
58 | }; | |
59 | ||
75337758 BV |
60 | SR_PRIV struct sr_dev_driver genericdmm_driver_info; |
61 | static struct sr_dev_driver *gdi = &genericdmm_driver_info; | |
62 | /* TODO need a way to keep this local to the static library */ | |
ca3d84cc BV |
63 | SR_PRIV libusb_context *genericdmm_usb_context = NULL; |
64 | ||
65 | ||
bbb40871 BV |
66 | static GSList *connect_usb(const char *conn) |
67 | { | |
68 | struct sr_dev_inst *sdi; | |
69 | struct context *ctx; | |
70 | libusb_device **devlist; | |
71 | struct libusb_device_descriptor des; | |
72 | GSList *devices; | |
73 | GRegex *reg; | |
74 | GMatchInfo *match; | |
75 | int vid, pid, bus, addr, devcnt, err, i; | |
76 | char *mstr; | |
77 | ||
78 | vid = pid = bus = addr = 0; | |
79 | reg = g_regex_new(DMM_CONN_USB_VIDPID, 0, 0, NULL); | |
80 | if (g_regex_match(reg, conn, 0, &match)) { | |
81 | /* Extract VID. */ | |
82 | if ((mstr = g_match_info_fetch(match, 1))) | |
83 | vid = strtoul(mstr, NULL, 16); | |
84 | g_free(mstr); | |
85 | ||
86 | /* Extract PID. */ | |
87 | if ((mstr = g_match_info_fetch(match, 2))) | |
88 | pid = strtoul(mstr, NULL, 16); | |
89 | g_free(mstr); | |
90 | } else { | |
91 | g_match_info_unref(match); | |
92 | g_regex_unref(reg); | |
93 | reg = g_regex_new(DMM_CONN_USB_BUSADDR, 0, 0, NULL); | |
94 | if (g_regex_match(reg, conn, 0, &match)) { | |
95 | /* Extract bus. */ | |
96 | if ((mstr = g_match_info_fetch(match, 0))) | |
97 | bus = strtoul(mstr, NULL, 16); | |
98 | g_free(mstr); | |
99 | ||
100 | /* Extract address. */ | |
101 | if ((mstr = g_match_info_fetch(match, 0))) | |
102 | addr = strtoul(mstr, NULL, 16); | |
103 | g_free(mstr); | |
104 | } | |
105 | } | |
106 | g_match_info_unref(match); | |
107 | g_regex_unref(reg); | |
108 | ||
109 | if (vid + pid + bus + addr == 0) | |
110 | return NULL; | |
111 | ||
112 | if (bus > 64) { | |
113 | sr_err("invalid bus"); | |
114 | return NULL; | |
115 | } | |
116 | ||
117 | if (addr > 127) { | |
118 | sr_err("invalid address"); | |
119 | return NULL; | |
120 | } | |
121 | ||
122 | /* Looks like a valid USB device specification, but is it connected? */ | |
123 | devices = NULL; | |
124 | libusb_get_device_list(genericdmm_usb_context, &devlist); | |
125 | for (i = 0; devlist[i]; i++) { | |
126 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
127 | sr_err("genericdmm: failed to get device descriptor: %d", err); | |
128 | continue; | |
129 | } | |
130 | ||
131 | if (vid + pid && (des.idVendor != vid || des.idProduct != pid)) | |
132 | /* VID/PID specified, but no match. */ | |
133 | continue; | |
134 | ||
135 | if (bus + addr && ( | |
136 | libusb_get_bus_number(devlist[i]) != bus | |
137 | || libusb_get_device_address(devlist[i]) != addr)) | |
138 | /* Bus/address specified, but no match. */ | |
139 | continue; | |
140 | ||
141 | /* Found one. */ | |
142 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { | |
143 | sr_err("genericdmm: ctx malloc failed."); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | devcnt = g_slist_length(gdi->instances); | |
148 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_ACTIVE, | |
149 | "Generic DMM", NULL, NULL))) { | |
150 | sr_err("genericdmm: sr_dev_inst_new returned NULL."); | |
151 | return NULL; | |
152 | } | |
153 | sdi->priv = ctx; | |
154 | ctx->usb = sr_usb_dev_inst_new( | |
155 | libusb_get_bus_number(devlist[i]), | |
156 | libusb_get_device_address(devlist[i]), NULL); | |
157 | devices = g_slist_append(devices, sdi); | |
158 | } | |
159 | libusb_free_device_list(devlist, 1); | |
160 | ||
161 | return devices; | |
162 | } | |
163 | ||
164 | static GSList *connect_serial(const char *conn, const char *serialcomm) | |
165 | { | |
166 | GSList *devices; | |
167 | ||
168 | devices = NULL; | |
169 | ||
170 | /* TODO */ | |
171 | sr_dbg("not yet implemented"); | |
172 | ||
173 | return devices; | |
174 | } | |
175 | ||
176 | GSList *genericdmm_connect(const char *conn, const char *serialcomm) | |
177 | { | |
178 | GSList *devices; | |
179 | ||
180 | if (serialcomm) | |
181 | /* Must be a serial port. */ | |
182 | return connect_serial(conn, serialcomm); | |
183 | ||
184 | if ((devices = connect_usb(conn))) | |
185 | return devices; | |
186 | ||
187 | return NULL; | |
188 | } | |
189 | ||
3a0fe402 BV |
190 | static GSList *default_scan(GSList *options) |
191 | { | |
192 | GSList *l, *devices; | |
193 | struct sr_hwopt *opt; | |
194 | const char *conn, *serialcomm; | |
195 | ||
196 | devices = NULL; | |
197 | conn = serialcomm = NULL; | |
198 | for (l = options; l; l = l->next) { | |
199 | opt = l->data; | |
200 | switch (opt->hwopt) { | |
201 | case SR_HWOPT_CONN: | |
202 | conn = opt->value; | |
203 | break; | |
204 | case SR_HWOPT_SERIALCOMM: | |
205 | serialcomm = opt->value; | |
206 | break; | |
207 | } | |
208 | } | |
209 | if (conn) | |
210 | devices = genericdmm_connect(conn, serialcomm); | |
211 | ||
212 | return devices; | |
213 | } | |
214 | ||
40dda2c3 | 215 | static int hw_init(void) |
ca3d84cc | 216 | { |
ca3d84cc | 217 | |
ca3d84cc BV |
218 | if (libusb_init(&genericdmm_usb_context) != 0) { |
219 | sr_err("genericdmm: Failed to initialize USB."); | |
61136ea6 | 220 | return SR_ERR; |
ca3d84cc BV |
221 | } |
222 | ||
61136ea6 BV |
223 | |
224 | return SR_OK; | |
225 | } | |
226 | ||
3a0fe402 | 227 | static GSList *hw_scan(GSList *options) |
61136ea6 | 228 | { |
3a0fe402 BV |
229 | GSList *l, *ldef, *defopts, *newopts, *devices; |
230 | struct sr_hwopt *opt, *defopt; | |
231 | struct dev_profile *pr, *profile; | |
232 | const char *model; | |
233 | ||
234 | /* Separate model from the options list. */ | |
235 | model = NULL; | |
236 | newopts = NULL; | |
237 | for (l = options; l; l = l->next) { | |
238 | opt = l->data; | |
239 | if (opt->hwopt == SR_HWOPT_MODEL) | |
240 | model = opt->value; | |
241 | else | |
242 | /* New list with references to the original data. */ | |
243 | newopts = g_slist_append(newopts, opt); | |
244 | } | |
245 | if (!model) { | |
246 | sr_err("Need a model to scan for."); | |
247 | return NULL; | |
248 | } | |
61136ea6 | 249 | |
3a0fe402 BV |
250 | /* Find a profile with this model name. */ |
251 | profile = NULL; | |
252 | for (pr = dev_profiles; pr->modelid; pr++) { | |
253 | if (!strcmp(pr->modelid, model)) { | |
254 | profile = pr; | |
255 | break; | |
256 | } | |
ca3d84cc | 257 | } |
3a0fe402 BV |
258 | if (!profile) { |
259 | sr_err("Unknown model %s.", model); | |
260 | return NULL; | |
261 | } | |
262 | ||
263 | /* Initialize the DMM chip driver. */ | |
264 | if (profile->chip->init) | |
265 | profile->chip->init(); | |
ca3d84cc | 266 | |
3a0fe402 BV |
267 | /* Convert the profile's default options list to a GSList. */ |
268 | defopts = NULL; | |
269 | for (opt = profile->defaults_opts; opt->hwopt; opt++) { | |
270 | /* New list with references to const data in the profile. */ | |
271 | defopts = g_slist_append(defopts, opt); | |
ca3d84cc | 272 | } |
ca3d84cc | 273 | |
3a0fe402 BV |
274 | /* Options given as argument to this function override the |
275 | * profile's default options. | |
276 | */ | |
277 | for (ldef = defopts; ldef; ldef = ldef->next) { | |
278 | defopt = ldef->data; | |
279 | for (l = newopts; l; l = l->next) { | |
280 | opt = l->data; | |
281 | if (opt->hwopt == defopt->hwopt) { | |
282 | /* Override the default, and drop it from the | |
283 | * options list. | |
284 | */ | |
285 | ldef->data = l->data; | |
286 | newopts = g_slist_remove(newopts, opt); | |
287 | break; | |
288 | } | |
289 | } | |
290 | } | |
291 | /* Whatever is left in newopts wasn't in the default options. */ | |
292 | defopts = g_slist_concat(defopts, newopts); | |
293 | g_slist_free(newopts); | |
294 | ||
295 | if (profile->chip->scan) | |
296 | /* The DMM chip driver wants to do its own scanning. */ | |
297 | devices = profile->chip->scan(defopts); | |
298 | else | |
299 | devices = default_scan(defopts); | |
300 | g_slist_free(defopts); | |
301 | ||
302 | if (devices) { | |
303 | /* TODO: need to fix up sdi->index fields */ | |
304 | /* Add a copy of these new devices to the driver instances. */ | |
305 | for (l = devices; l; l = l->next) | |
306 | gdi->instances = g_slist_append(gdi->instances, l->data); | |
307 | } | |
308 | ||
309 | return devices; | |
ca3d84cc BV |
310 | } |
311 | ||
312 | static int hw_dev_open(int dev_index) | |
313 | { | |
314 | struct sr_dev_inst *sdi; | |
315 | struct context *ctx; | |
316 | ||
75337758 | 317 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
318 | sr_err("genericdmm: sdi was NULL."); |
319 | return SR_ERR_BUG; | |
320 | } | |
321 | ||
322 | if (!(ctx = sdi->priv)) { | |
323 | sr_err("genericdmm: sdi->priv was NULL."); | |
324 | return SR_ERR_BUG; | |
325 | } | |
326 | ||
327 | sr_dbg("genericdmm: Opening serial port '%s'.", ctx->serial->port); | |
328 | ||
329 | switch (ctx->profile->transport) { | |
330 | case DMM_TRANSPORT_USBHID: | |
331 | /* TODO */ | |
332 | break; | |
333 | case DMM_TRANSPORT_SERIAL: | |
334 | /* TODO: O_NONBLOCK? */ | |
335 | ctx->serial->fd = serial_open(ctx->serial->port, O_RDWR | O_NONBLOCK); | |
336 | if (ctx->serial->fd == -1) { | |
337 | sr_err("genericdmm: Couldn't open serial port '%s'.", | |
338 | ctx->serial->port); | |
339 | return SR_ERR; | |
340 | } | |
341 | // serial_set_params(ctx->serial->fd, 2400, 8, 0, 1, 2); | |
342 | break; | |
343 | default: | |
344 | sr_err("No transport set."); | |
345 | } | |
346 | ||
347 | return SR_OK; | |
348 | } | |
349 | ||
350 | static int hw_dev_close(int dev_index) | |
351 | { | |
352 | struct sr_dev_inst *sdi; | |
353 | struct context *ctx; | |
354 | ||
75337758 | 355 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
356 | sr_err("genericdmm: %s: sdi was NULL.", __func__); |
357 | return SR_ERR_BUG; | |
358 | } | |
359 | ||
360 | if (!(ctx = sdi->priv)) { | |
361 | sr_err("genericdmm: %s: sdi->priv was NULL.", __func__); | |
362 | return SR_ERR_BUG; | |
363 | } | |
364 | ||
365 | /* TODO: Check for != NULL. */ | |
366 | ||
367 | switch (ctx->profile->transport) { | |
368 | case DMM_TRANSPORT_USBHID: | |
369 | /* TODO */ | |
370 | break; | |
371 | case DMM_TRANSPORT_SERIAL: | |
372 | if (ctx->serial && ctx->serial->fd != -1) { | |
373 | serial_close(ctx->serial->fd); | |
374 | ctx->serial->fd = -1; | |
375 | sdi->status = SR_ST_INACTIVE; | |
376 | } | |
377 | break; | |
378 | } | |
379 | ||
380 | return SR_OK; | |
381 | } | |
382 | ||
383 | static int hw_cleanup(void) | |
384 | { | |
385 | GSList *l; | |
386 | struct sr_dev_inst *sdi; | |
387 | struct context *ctx; | |
388 | ||
389 | /* Properly close and free all devices. */ | |
75337758 | 390 | for (l = gdi->instances; l; l = l->next) { |
ca3d84cc BV |
391 | if (!(sdi = l->data)) { |
392 | /* Log error, but continue cleaning up the rest. */ | |
393 | sr_err("genericdmm: sdi was NULL, continuing."); | |
394 | continue; | |
395 | } | |
396 | if (!(ctx = sdi->priv)) { | |
397 | /* Log error, but continue cleaning up the rest. */ | |
398 | sr_err("genericdmm: sdi->priv was NULL, continuing."); | |
399 | continue; | |
400 | } | |
401 | ||
402 | if (ctx->profile) { | |
403 | switch (ctx->profile->transport) { | |
404 | case DMM_TRANSPORT_USBHID: | |
405 | /* TODO */ | |
406 | break; | |
407 | case DMM_TRANSPORT_SERIAL: | |
408 | if (ctx->serial && ctx->serial->fd != -1) | |
409 | serial_close(ctx->serial->fd); | |
410 | sr_serial_dev_inst_free(ctx->serial); | |
411 | break; | |
412 | } | |
413 | } | |
414 | ||
415 | sr_dev_inst_free(sdi); | |
416 | } | |
417 | ||
75337758 BV |
418 | g_slist_free(gdi->instances); |
419 | gdi->instances = NULL; | |
ca3d84cc BV |
420 | |
421 | if (genericdmm_usb_context) | |
422 | libusb_exit(genericdmm_usb_context); | |
423 | ||
424 | return SR_OK; | |
425 | } | |
426 | ||
427 | static const void *hw_dev_info_get(int dev_index, int dev_info_id) | |
428 | { | |
429 | struct sr_dev_inst *sdi; | |
430 | struct context *ctx; | |
431 | const void *info; | |
432 | ||
75337758 | 433 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
434 | sr_err("genericdmm: sdi was NULL."); |
435 | return NULL; | |
436 | } | |
437 | ||
438 | if (!(ctx = sdi->priv)) { | |
439 | sr_err("genericdmm: sdi->priv was NULL."); | |
440 | return NULL; | |
441 | } | |
442 | ||
443 | sr_spew("genericdmm: dev_index %d, dev_info_id %d.", | |
444 | dev_index, dev_info_id); | |
445 | ||
446 | switch (dev_info_id) { | |
447 | case SR_DI_INST: | |
448 | info = sdi; | |
449 | sr_spew("genericdmm: Returning sdi."); | |
450 | break; | |
451 | case SR_DI_NUM_PROBES: | |
452 | info = GINT_TO_POINTER(1); | |
453 | sr_spew("genericdmm: Returning number of probes: 1."); | |
454 | break; | |
455 | case SR_DI_PROBE_NAMES: | |
456 | info = probe_names; | |
457 | sr_spew("genericdmm: Returning probenames."); | |
458 | break; | |
459 | case SR_DI_CUR_SAMPLERATE: | |
460 | /* TODO get rid of this */ | |
461 | info = NULL; | |
462 | sr_spew("genericdmm: Returning samplerate: 0."); | |
463 | break; | |
464 | default: | |
465 | /* Unknown device info ID. */ | |
466 | sr_err("genericdmm: Unknown device info ID: %d.", dev_info_id); | |
467 | info = NULL; | |
468 | break; | |
469 | } | |
470 | ||
471 | return info; | |
472 | } | |
473 | ||
474 | static int hw_dev_status_get(int dev_index) | |
475 | { | |
476 | struct sr_dev_inst *sdi; | |
477 | ||
75337758 | 478 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
479 | sr_err("genericdmm: sdi was NULL, device not found."); |
480 | return SR_ST_NOT_FOUND; | |
481 | } | |
482 | ||
483 | sr_dbg("genericdmm: Returning status: %d.", sdi->status); | |
484 | ||
485 | return sdi->status; | |
486 | } | |
487 | ||
488 | static const int *hw_hwcap_get_all(void) | |
489 | { | |
490 | sr_spew("genericdmm: Returning list of device capabilities."); | |
491 | ||
492 | return hwcaps; | |
493 | } | |
494 | ||
ca3d84cc BV |
495 | static int hw_dev_config_set(int dev_index, int hwcap, const void *value) |
496 | { | |
497 | struct sr_dev_inst *sdi; | |
498 | struct context *ctx; | |
ca3d84cc | 499 | |
75337758 | 500 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
501 | sr_err("genericdmm: sdi was NULL."); |
502 | return SR_ERR_BUG; | |
503 | } | |
504 | ||
505 | if (!(ctx = sdi->priv)) { | |
506 | sr_err("genericdmm: sdi->priv was NULL."); | |
507 | return SR_ERR_BUG; | |
508 | } | |
509 | ||
510 | sr_spew("genericdmm: dev_index %d, hwcap %d.", dev_index, hwcap); | |
511 | ||
512 | switch (hwcap) { | |
513 | case SR_HWCAP_LIMIT_MSEC: | |
514 | if (*(const uint64_t *)value == 0) { | |
515 | sr_err("genericdmm: LIMIT_MSEC can't be 0."); | |
516 | return SR_ERR; | |
517 | } | |
518 | ctx->limit_msec = *(const uint64_t *)value; | |
519 | sr_dbg("genericdmm: Setting LIMIT_MSEC to %" PRIu64 ".", | |
520 | ctx->limit_msec); | |
521 | break; | |
522 | case SR_HWCAP_LIMIT_SAMPLES: | |
523 | ctx->limit_samples = *(const uint64_t *)value; | |
524 | sr_dbg("genericdmm: Setting LIMIT_SAMPLES to %" PRIu64 ".", | |
525 | ctx->limit_samples); | |
526 | break; | |
ca3d84cc BV |
527 | default: |
528 | sr_err("genericdmm: Unknown capability: %d.", hwcap); | |
529 | return SR_ERR; | |
530 | break; | |
531 | } | |
532 | ||
533 | return SR_OK; | |
534 | } | |
535 | ||
536 | static int receive_data(int fd, int revents, void *cb_data) | |
537 | { | |
538 | struct sr_dev_inst *sdi; | |
539 | struct context *ctx; | |
540 | ||
541 | if (!(sdi = cb_data)) | |
542 | return FALSE; | |
543 | ||
544 | if (!(ctx = sdi->priv)) | |
545 | return FALSE; | |
546 | ||
547 | if (revents != G_IO_IN) { | |
548 | sr_err("genericdmm: No data?"); | |
549 | return FALSE; | |
550 | } | |
551 | ||
552 | switch (ctx->profile->transport) { | |
553 | case DMM_TRANSPORT_USBHID: | |
554 | /* TODO */ | |
555 | break; | |
556 | case DMM_TRANSPORT_SERIAL: | |
557 | /* TODO */ | |
558 | break; | |
559 | } | |
560 | ||
561 | return TRUE; | |
562 | } | |
563 | ||
564 | static int hw_dev_acquisition_start(int dev_index, void *cb_data) | |
565 | { | |
566 | struct sr_datafeed_packet packet; | |
567 | struct sr_datafeed_header header; | |
568 | struct sr_datafeed_meta_analog meta; | |
569 | struct sr_dev_inst *sdi; | |
570 | struct context *ctx; | |
571 | ||
75337758 | 572 | if (!(sdi = sr_dev_inst_get(gdi->instances, dev_index))) { |
ca3d84cc BV |
573 | sr_err("genericdmm: sdi was NULL."); |
574 | return SR_ERR_BUG; | |
575 | } | |
576 | ||
577 | if (!(ctx = sdi->priv)) { | |
578 | sr_err("genericdmm: sdi->priv was NULL."); | |
579 | return SR_ERR_BUG; | |
580 | } | |
581 | ||
582 | sr_dbg("genericdmm: Starting acquisition."); | |
583 | ||
584 | ctx->cb_data = cb_data; | |
585 | ||
586 | /* Send header packet to the session bus. */ | |
587 | sr_dbg("genericdmm: Sending SR_DF_HEADER."); | |
588 | packet.type = SR_DF_HEADER; | |
589 | packet.payload = (uint8_t *)&header; | |
590 | header.feed_version = 1; | |
591 | gettimeofday(&header.starttime, NULL); | |
592 | sr_session_send(ctx->cb_data, &packet); | |
593 | ||
594 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
595 | sr_dbg("genericdmm: Sending SR_DF_META_ANALOG."); | |
596 | packet.type = SR_DF_META_ANALOG; | |
597 | packet.payload = &meta; | |
598 | meta.num_probes = 1; | |
599 | sr_session_send(ctx->cb_data, &packet); | |
600 | ||
601 | /* Hook up a proxy handler to receive data from the device. */ | |
602 | switch (ctx->profile->transport) { | |
603 | case DMM_TRANSPORT_USBHID: | |
604 | /* TODO libusb FD setup */ | |
605 | break; | |
606 | case DMM_TRANSPORT_SERIAL: | |
607 | /* TODO serial FD setup */ | |
608 | // sr_source_add(ctx->serial->fd, G_IO_IN, -1, receive_data, sdi); | |
609 | break; | |
610 | } | |
611 | ||
612 | return SR_OK; | |
613 | } | |
614 | ||
615 | static int hw_dev_acquisition_stop(int dev_index, void *cb_data) | |
616 | { | |
617 | struct sr_datafeed_packet packet; | |
618 | ||
619 | /* Avoid compiler warnings. */ | |
620 | (void)dev_index; | |
621 | ||
622 | sr_dbg("genericdmm: Stopping acquisition."); | |
623 | ||
624 | /* Send end packet to the session bus. */ | |
625 | sr_dbg("genericdmm: Sending SR_DF_END."); | |
626 | packet.type = SR_DF_END; | |
627 | sr_session_send(cb_data, &packet); | |
628 | ||
629 | return SR_OK; | |
630 | } | |
631 | ||
632 | SR_PRIV struct sr_dev_driver genericdmm_driver_info = { | |
633 | .name = "genericdmm", | |
634 | .longname = "Generic DMM", | |
635 | .api_version = 1, | |
636 | .init = hw_init, | |
637 | .cleanup = hw_cleanup, | |
61136ea6 | 638 | .scan = hw_scan, |
ca3d84cc BV |
639 | .dev_open = hw_dev_open, |
640 | .dev_close = hw_dev_close, | |
641 | .dev_info_get = hw_dev_info_get, | |
642 | .dev_status_get = hw_dev_status_get, | |
643 | .hwcap_get_all = hw_hwcap_get_all, | |
644 | .dev_config_set = hw_dev_config_set, | |
645 | .dev_acquisition_start = hw_dev_acquisition_start, | |
646 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
75337758 | 647 | .instances = NULL, |
ca3d84cc | 648 | }; |