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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 | ||
f1a14ea7 BV |
44 | static const int hwopts[] = { |
45 | SR_HWOPT_MODEL, | |
46 | SR_HWOPT_CONN, | |
47 | SR_HWOPT_SERIALCOMM, | |
48 | 0, | |
49 | }; | |
50 | ||
ca3d84cc BV |
51 | static const int hwcaps[] = { |
52 | SR_HWCAP_MULTIMETER, | |
53 | SR_HWCAP_LIMIT_SAMPLES, | |
54 | SR_HWCAP_LIMIT_MSEC, | |
55 | SR_HWCAP_CONTINUOUS, | |
ca3d84cc BV |
56 | 0, |
57 | }; | |
58 | ||
59 | static const char *probe_names[] = { | |
60 | "Probe", | |
61 | NULL, | |
62 | }; | |
63 | ||
75337758 BV |
64 | SR_PRIV struct sr_dev_driver genericdmm_driver_info; |
65 | static struct sr_dev_driver *gdi = &genericdmm_driver_info; | |
66 | /* TODO need a way to keep this local to the static library */ | |
ca3d84cc BV |
67 | SR_PRIV libusb_context *genericdmm_usb_context = NULL; |
68 | ||
69 | ||
bbb40871 BV |
70 | static GSList *connect_usb(const char *conn) |
71 | { | |
72 | struct sr_dev_inst *sdi; | |
301a5e4c BV |
73 | struct drv_context *drvc; |
74 | struct dev_context *devc; | |
bbb40871 BV |
75 | libusb_device **devlist; |
76 | struct libusb_device_descriptor des; | |
77 | GSList *devices; | |
78 | GRegex *reg; | |
79 | GMatchInfo *match; | |
80 | int vid, pid, bus, addr, devcnt, err, i; | |
81 | char *mstr; | |
82 | ||
301a5e4c BV |
83 | drvc = gdi->priv; |
84 | ||
bbb40871 BV |
85 | vid = pid = bus = addr = 0; |
86 | reg = g_regex_new(DMM_CONN_USB_VIDPID, 0, 0, NULL); | |
87 | if (g_regex_match(reg, conn, 0, &match)) { | |
88 | /* Extract VID. */ | |
89 | if ((mstr = g_match_info_fetch(match, 1))) | |
90 | vid = strtoul(mstr, NULL, 16); | |
91 | g_free(mstr); | |
92 | ||
93 | /* Extract PID. */ | |
94 | if ((mstr = g_match_info_fetch(match, 2))) | |
95 | pid = strtoul(mstr, NULL, 16); | |
96 | g_free(mstr); | |
97 | } else { | |
98 | g_match_info_unref(match); | |
99 | g_regex_unref(reg); | |
100 | reg = g_regex_new(DMM_CONN_USB_BUSADDR, 0, 0, NULL); | |
101 | if (g_regex_match(reg, conn, 0, &match)) { | |
102 | /* Extract bus. */ | |
103 | if ((mstr = g_match_info_fetch(match, 0))) | |
104 | bus = strtoul(mstr, NULL, 16); | |
105 | g_free(mstr); | |
106 | ||
107 | /* Extract address. */ | |
108 | if ((mstr = g_match_info_fetch(match, 0))) | |
109 | addr = strtoul(mstr, NULL, 16); | |
110 | g_free(mstr); | |
111 | } | |
112 | } | |
113 | g_match_info_unref(match); | |
114 | g_regex_unref(reg); | |
115 | ||
116 | if (vid + pid + bus + addr == 0) | |
117 | return NULL; | |
118 | ||
119 | if (bus > 64) { | |
120 | sr_err("invalid bus"); | |
121 | return NULL; | |
122 | } | |
123 | ||
124 | if (addr > 127) { | |
125 | sr_err("invalid address"); | |
126 | return NULL; | |
127 | } | |
128 | ||
129 | /* Looks like a valid USB device specification, but is it connected? */ | |
130 | devices = NULL; | |
131 | libusb_get_device_list(genericdmm_usb_context, &devlist); | |
132 | for (i = 0; devlist[i]; i++) { | |
133 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
134 | sr_err("genericdmm: failed to get device descriptor: %d", err); | |
135 | continue; | |
136 | } | |
137 | ||
138 | if (vid + pid && (des.idVendor != vid || des.idProduct != pid)) | |
139 | /* VID/PID specified, but no match. */ | |
140 | continue; | |
141 | ||
142 | if (bus + addr && ( | |
143 | libusb_get_bus_number(devlist[i]) != bus | |
144 | || libusb_get_device_address(devlist[i]) != addr)) | |
145 | /* Bus/address specified, but no match. */ | |
146 | continue; | |
147 | ||
148 | /* Found one. */ | |
301a5e4c BV |
149 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
150 | sr_err("genericdmm: devc malloc failed."); | |
bbb40871 BV |
151 | return 0; |
152 | } | |
153 | ||
301a5e4c | 154 | devcnt = g_slist_length(drvc->instances); |
bbb40871 | 155 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_ACTIVE, |
d6db79a4 | 156 | NULL, NULL, NULL))) { |
bbb40871 BV |
157 | sr_err("genericdmm: sr_dev_inst_new returned NULL."); |
158 | return NULL; | |
159 | } | |
301a5e4c BV |
160 | sdi->priv = devc; |
161 | devc->usb = sr_usb_dev_inst_new( | |
bbb40871 BV |
162 | libusb_get_bus_number(devlist[i]), |
163 | libusb_get_device_address(devlist[i]), NULL); | |
164 | devices = g_slist_append(devices, sdi); | |
165 | } | |
166 | libusb_free_device_list(devlist, 1); | |
167 | ||
168 | return devices; | |
169 | } | |
170 | ||
171 | static GSList *connect_serial(const char *conn, const char *serialcomm) | |
172 | { | |
173 | GSList *devices; | |
174 | ||
175 | devices = NULL; | |
176 | ||
177 | /* TODO */ | |
178 | sr_dbg("not yet implemented"); | |
179 | ||
180 | return devices; | |
181 | } | |
182 | ||
183 | GSList *genericdmm_connect(const char *conn, const char *serialcomm) | |
184 | { | |
185 | GSList *devices; | |
186 | ||
187 | if (serialcomm) | |
188 | /* Must be a serial port. */ | |
189 | return connect_serial(conn, serialcomm); | |
190 | ||
191 | if ((devices = connect_usb(conn))) | |
192 | return devices; | |
193 | ||
194 | return NULL; | |
195 | } | |
196 | ||
3a0fe402 BV |
197 | static GSList *default_scan(GSList *options) |
198 | { | |
199 | GSList *l, *devices; | |
200 | struct sr_hwopt *opt; | |
201 | const char *conn, *serialcomm; | |
202 | ||
203 | devices = NULL; | |
204 | conn = serialcomm = NULL; | |
205 | for (l = options; l; l = l->next) { | |
206 | opt = l->data; | |
207 | switch (opt->hwopt) { | |
208 | case SR_HWOPT_CONN: | |
209 | conn = opt->value; | |
210 | break; | |
211 | case SR_HWOPT_SERIALCOMM: | |
212 | serialcomm = opt->value; | |
213 | break; | |
214 | } | |
215 | } | |
216 | if (conn) | |
217 | devices = genericdmm_connect(conn, serialcomm); | |
218 | ||
219 | return devices; | |
220 | } | |
221 | ||
811deee4 BV |
222 | static int clear_instances(void) |
223 | { | |
224 | GSList *l; | |
225 | struct sr_dev_inst *sdi; | |
226 | struct dev_context *devc; | |
227 | struct drv_context *drvc; | |
228 | ||
229 | if (!(drvc = gdi->priv)) | |
230 | return SR_OK; | |
231 | ||
232 | /* Properly close and free all devices. */ | |
233 | for (l = drvc->instances; l; l = l->next) { | |
234 | if (!(sdi = l->data)) { | |
235 | /* Log error, but continue cleaning up the rest. */ | |
236 | sr_err("genericdmm: sdi was NULL, continuing."); | |
237 | continue; | |
238 | } | |
239 | if (!(devc = sdi->priv)) { | |
240 | /* Log error, but continue cleaning up the rest. */ | |
241 | sr_err("genericdmm: sdi->priv was NULL, continuing."); | |
242 | continue; | |
243 | } | |
244 | ||
245 | if (devc->profile) { | |
246 | switch (devc->profile->transport) { | |
247 | case DMM_TRANSPORT_USBHID: | |
248 | /* TODO */ | |
249 | sr_usb_dev_inst_free(devc->usb); | |
250 | break; | |
251 | case DMM_TRANSPORT_SERIAL: | |
252 | if (devc->serial && devc->serial->fd != -1) | |
253 | serial_close(devc->serial->fd); | |
254 | sr_serial_dev_inst_free(devc->serial); | |
255 | break; | |
256 | } | |
257 | } | |
258 | ||
259 | sr_dev_inst_free(sdi); | |
260 | } | |
261 | ||
262 | g_slist_free(drvc->instances); | |
263 | drvc->instances = NULL; | |
264 | ||
265 | return SR_OK; | |
266 | } | |
267 | ||
40dda2c3 | 268 | static int hw_init(void) |
ca3d84cc | 269 | { |
301a5e4c BV |
270 | struct drv_context *drvc; |
271 | ||
272 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
273 | sr_err("genericdmm: driver context malloc failed."); | |
274 | return SR_ERR; | |
275 | } | |
ca3d84cc | 276 | |
ca3d84cc BV |
277 | if (libusb_init(&genericdmm_usb_context) != 0) { |
278 | sr_err("genericdmm: Failed to initialize USB."); | |
61136ea6 | 279 | return SR_ERR; |
ca3d84cc BV |
280 | } |
281 | ||
301a5e4c | 282 | gdi->priv = drvc; |
61136ea6 BV |
283 | |
284 | return SR_OK; | |
285 | } | |
286 | ||
3a0fe402 | 287 | static GSList *hw_scan(GSList *options) |
61136ea6 | 288 | { |
3a0fe402 BV |
289 | GSList *l, *ldef, *defopts, *newopts, *devices; |
290 | struct sr_hwopt *opt, *defopt; | |
291 | struct dev_profile *pr, *profile; | |
d6db79a4 | 292 | struct sr_dev_inst *sdi; |
301a5e4c | 293 | struct drv_context *drvc; |
3a0fe402 BV |
294 | const char *model; |
295 | ||
301a5e4c BV |
296 | drvc = gdi->priv; |
297 | ||
3a0fe402 BV |
298 | /* Separate model from the options list. */ |
299 | model = NULL; | |
300 | newopts = NULL; | |
301 | for (l = options; l; l = l->next) { | |
302 | opt = l->data; | |
303 | if (opt->hwopt == SR_HWOPT_MODEL) | |
304 | model = opt->value; | |
305 | else | |
306 | /* New list with references to the original data. */ | |
307 | newopts = g_slist_append(newopts, opt); | |
308 | } | |
309 | if (!model) { | |
d6db79a4 | 310 | /* This driver only works when a model is specified. */ |
3a0fe402 BV |
311 | return NULL; |
312 | } | |
61136ea6 | 313 | |
3a0fe402 BV |
314 | /* Find a profile with this model name. */ |
315 | profile = NULL; | |
316 | for (pr = dev_profiles; pr->modelid; pr++) { | |
317 | if (!strcmp(pr->modelid, model)) { | |
318 | profile = pr; | |
319 | break; | |
320 | } | |
ca3d84cc | 321 | } |
3a0fe402 BV |
322 | if (!profile) { |
323 | sr_err("Unknown model %s.", model); | |
324 | return NULL; | |
325 | } | |
326 | ||
327 | /* Initialize the DMM chip driver. */ | |
328 | if (profile->chip->init) | |
329 | profile->chip->init(); | |
ca3d84cc | 330 | |
3a0fe402 BV |
331 | /* Convert the profile's default options list to a GSList. */ |
332 | defopts = NULL; | |
333 | for (opt = profile->defaults_opts; opt->hwopt; opt++) { | |
334 | /* New list with references to const data in the profile. */ | |
335 | defopts = g_slist_append(defopts, opt); | |
ca3d84cc | 336 | } |
ca3d84cc | 337 | |
3a0fe402 BV |
338 | /* Options given as argument to this function override the |
339 | * profile's default options. | |
340 | */ | |
341 | for (ldef = defopts; ldef; ldef = ldef->next) { | |
342 | defopt = ldef->data; | |
343 | for (l = newopts; l; l = l->next) { | |
344 | opt = l->data; | |
345 | if (opt->hwopt == defopt->hwopt) { | |
346 | /* Override the default, and drop it from the | |
347 | * options list. | |
348 | */ | |
349 | ldef->data = l->data; | |
350 | newopts = g_slist_remove(newopts, opt); | |
351 | break; | |
352 | } | |
353 | } | |
354 | } | |
355 | /* Whatever is left in newopts wasn't in the default options. */ | |
356 | defopts = g_slist_concat(defopts, newopts); | |
357 | g_slist_free(newopts); | |
358 | ||
359 | if (profile->chip->scan) | |
360 | /* The DMM chip driver wants to do its own scanning. */ | |
361 | devices = profile->chip->scan(defopts); | |
362 | else | |
363 | devices = default_scan(defopts); | |
364 | g_slist_free(defopts); | |
365 | ||
366 | if (devices) { | |
367 | /* TODO: need to fix up sdi->index fields */ | |
d6db79a4 BV |
368 | for (l = devices; l; l = l->next) { |
369 | /* The default connection-based scanner doesn't really | |
370 | * know about profiles, so it never filled in the vendor | |
371 | * or model. Do that now. | |
372 | */ | |
373 | sdi = l->data; | |
374 | sdi->driver = gdi; | |
375 | if (!sdi->vendor) | |
376 | sdi->vendor = g_strdup(profile->vendor); | |
377 | if (!sdi->model) | |
378 | sdi->model = g_strdup(profile->model); | |
379 | /* Add a copy of these new devices to the driver instances. */ | |
301a5e4c | 380 | drvc->instances = g_slist_append(drvc->instances, l->data); |
d6db79a4 | 381 | } |
3a0fe402 BV |
382 | } |
383 | ||
384 | return devices; | |
ca3d84cc BV |
385 | } |
386 | ||
811deee4 BV |
387 | static GSList *hw_dev_list(void) |
388 | { | |
389 | struct drv_context *drvc; | |
390 | ||
391 | drvc = gdi->priv; | |
392 | ||
393 | return drvc->instances; | |
394 | } | |
395 | ||
25a0f108 | 396 | static int hw_dev_open(struct sr_dev_inst *sdi) |
ca3d84cc | 397 | { |
301a5e4c | 398 | struct dev_context *devc; |
ca3d84cc | 399 | |
301a5e4c | 400 | if (!(devc = sdi->priv)) { |
ca3d84cc BV |
401 | sr_err("genericdmm: sdi->priv was NULL."); |
402 | return SR_ERR_BUG; | |
403 | } | |
404 | ||
301a5e4c | 405 | switch (devc->profile->transport) { |
ca3d84cc BV |
406 | case DMM_TRANSPORT_USBHID: |
407 | /* TODO */ | |
408 | break; | |
409 | case DMM_TRANSPORT_SERIAL: | |
410 | /* TODO: O_NONBLOCK? */ | |
811deee4 | 411 | sr_dbg("genericdmm: Opening serial port '%s'.", devc->serial->port); |
301a5e4c BV |
412 | devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK); |
413 | if (devc->serial->fd == -1) { | |
ca3d84cc | 414 | sr_err("genericdmm: Couldn't open serial port '%s'.", |
301a5e4c | 415 | devc->serial->port); |
ca3d84cc BV |
416 | return SR_ERR; |
417 | } | |
301a5e4c | 418 | // serial_set_params(devc->serial->fd, 2400, 8, 0, 1, 2); |
ca3d84cc BV |
419 | break; |
420 | default: | |
421 | sr_err("No transport set."); | |
422 | } | |
423 | ||
424 | return SR_OK; | |
425 | } | |
426 | ||
25a0f108 | 427 | static int hw_dev_close(struct sr_dev_inst *sdi) |
ca3d84cc | 428 | { |
301a5e4c | 429 | struct dev_context *devc; |
ca3d84cc | 430 | |
301a5e4c | 431 | if (!(devc = sdi->priv)) { |
ca3d84cc BV |
432 | sr_err("genericdmm: %s: sdi->priv was NULL.", __func__); |
433 | return SR_ERR_BUG; | |
434 | } | |
435 | ||
301a5e4c | 436 | switch (devc->profile->transport) { |
ca3d84cc BV |
437 | case DMM_TRANSPORT_USBHID: |
438 | /* TODO */ | |
439 | break; | |
440 | case DMM_TRANSPORT_SERIAL: | |
301a5e4c BV |
441 | if (devc->serial && devc->serial->fd != -1) { |
442 | serial_close(devc->serial->fd); | |
443 | devc->serial->fd = -1; | |
ca3d84cc BV |
444 | sdi->status = SR_ST_INACTIVE; |
445 | } | |
446 | break; | |
447 | } | |
448 | ||
449 | return SR_OK; | |
450 | } | |
451 | ||
452 | static int hw_cleanup(void) | |
453 | { | |
ca3d84cc | 454 | |
811deee4 | 455 | clear_instances(); |
ca3d84cc BV |
456 | |
457 | if (genericdmm_usb_context) | |
458 | libusb_exit(genericdmm_usb_context); | |
459 | ||
460 | return SR_OK; | |
461 | } | |
462 | ||
c4a1de59 | 463 | static int hw_info_get(int info_id, const void **data, |
6910bf6b | 464 | const struct sr_dev_inst *sdi) |
ca3d84cc | 465 | { |
301a5e4c | 466 | struct dev_context *devc; |
ca3d84cc | 467 | |
6f57fd96 | 468 | (void)sdi; |
301a5e4c | 469 | (void)devc; |
6f57fd96 | 470 | |
c4a1de59 | 471 | switch (info_id) { |
f1a14ea7 BV |
472 | case SR_DI_HWOPTS: |
473 | *data = hwopts; | |
474 | break; | |
475 | case SR_DI_HWCAPS: | |
476 | *data = hwcaps; | |
477 | break; | |
ca3d84cc | 478 | case SR_DI_NUM_PROBES: |
6910bf6b | 479 | *data = GINT_TO_POINTER(1); |
ca3d84cc BV |
480 | break; |
481 | case SR_DI_PROBE_NAMES: | |
6910bf6b | 482 | *data = probe_names; |
ca3d84cc BV |
483 | break; |
484 | case SR_DI_CUR_SAMPLERATE: | |
485 | /* TODO get rid of this */ | |
6910bf6b | 486 | *data = NULL; |
ca3d84cc BV |
487 | break; |
488 | default: | |
489 | /* Unknown device info ID. */ | |
6910bf6b | 490 | return SR_ERR_ARG; |
ca3d84cc BV |
491 | } |
492 | ||
6910bf6b | 493 | return SR_OK; |
ca3d84cc BV |
494 | } |
495 | ||
6f4b1868 BV |
496 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
497 | const void *value) | |
ca3d84cc | 498 | { |
301a5e4c | 499 | struct dev_context *devc; |
ca3d84cc | 500 | |
301a5e4c | 501 | if (!(devc = sdi->priv)) { |
ca3d84cc BV |
502 | sr_err("genericdmm: sdi->priv was NULL."); |
503 | return SR_ERR_BUG; | |
504 | } | |
505 | ||
ca3d84cc BV |
506 | switch (hwcap) { |
507 | case SR_HWCAP_LIMIT_MSEC: | |
508 | if (*(const uint64_t *)value == 0) { | |
509 | sr_err("genericdmm: LIMIT_MSEC can't be 0."); | |
510 | return SR_ERR; | |
511 | } | |
301a5e4c | 512 | devc->limit_msec = *(const uint64_t *)value; |
ca3d84cc | 513 | sr_dbg("genericdmm: Setting LIMIT_MSEC to %" PRIu64 ".", |
301a5e4c | 514 | devc->limit_msec); |
ca3d84cc BV |
515 | break; |
516 | case SR_HWCAP_LIMIT_SAMPLES: | |
301a5e4c | 517 | devc->limit_samples = *(const uint64_t *)value; |
ca3d84cc | 518 | sr_dbg("genericdmm: Setting LIMIT_SAMPLES to %" PRIu64 ".", |
301a5e4c | 519 | devc->limit_samples); |
ca3d84cc | 520 | break; |
ca3d84cc BV |
521 | default: |
522 | sr_err("genericdmm: Unknown capability: %d.", hwcap); | |
523 | return SR_ERR; | |
524 | break; | |
525 | } | |
526 | ||
527 | return SR_OK; | |
528 | } | |
529 | ||
530 | static int receive_data(int fd, int revents, void *cb_data) | |
531 | { | |
532 | struct sr_dev_inst *sdi; | |
301a5e4c | 533 | struct dev_context *devc; |
ca3d84cc BV |
534 | |
535 | if (!(sdi = cb_data)) | |
536 | return FALSE; | |
537 | ||
301a5e4c | 538 | if (!(devc = sdi->priv)) |
ca3d84cc BV |
539 | return FALSE; |
540 | ||
541 | if (revents != G_IO_IN) { | |
542 | sr_err("genericdmm: No data?"); | |
543 | return FALSE; | |
544 | } | |
545 | ||
301a5e4c | 546 | switch (devc->profile->transport) { |
ca3d84cc BV |
547 | case DMM_TRANSPORT_USBHID: |
548 | /* TODO */ | |
549 | break; | |
550 | case DMM_TRANSPORT_SERIAL: | |
551 | /* TODO */ | |
552 | break; | |
553 | } | |
554 | ||
555 | return TRUE; | |
556 | } | |
557 | ||
3ffb6964 BV |
558 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
559 | void *cb_data) | |
ca3d84cc BV |
560 | { |
561 | struct sr_datafeed_packet packet; | |
562 | struct sr_datafeed_header header; | |
563 | struct sr_datafeed_meta_analog meta; | |
301a5e4c | 564 | struct dev_context *devc; |
ca3d84cc | 565 | |
301a5e4c | 566 | if (!(devc = sdi->priv)) { |
ca3d84cc BV |
567 | sr_err("genericdmm: sdi->priv was NULL."); |
568 | return SR_ERR_BUG; | |
569 | } | |
570 | ||
571 | sr_dbg("genericdmm: Starting acquisition."); | |
572 | ||
301a5e4c | 573 | devc->cb_data = cb_data; |
ca3d84cc BV |
574 | |
575 | /* Send header packet to the session bus. */ | |
576 | sr_dbg("genericdmm: Sending SR_DF_HEADER."); | |
577 | packet.type = SR_DF_HEADER; | |
578 | packet.payload = (uint8_t *)&header; | |
579 | header.feed_version = 1; | |
580 | gettimeofday(&header.starttime, NULL); | |
301a5e4c | 581 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
582 | |
583 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
584 | sr_dbg("genericdmm: Sending SR_DF_META_ANALOG."); | |
585 | packet.type = SR_DF_META_ANALOG; | |
586 | packet.payload = &meta; | |
587 | meta.num_probes = 1; | |
301a5e4c | 588 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
589 | |
590 | /* Hook up a proxy handler to receive data from the device. */ | |
301a5e4c | 591 | switch (devc->profile->transport) { |
ca3d84cc BV |
592 | case DMM_TRANSPORT_USBHID: |
593 | /* TODO libusb FD setup */ | |
594 | break; | |
595 | case DMM_TRANSPORT_SERIAL: | |
596 | /* TODO serial FD setup */ | |
301a5e4c | 597 | // sr_source_add(devc->serial->fd, G_IO_IN, -1, receive_data, sdi); |
ca3d84cc BV |
598 | break; |
599 | } | |
600 | ||
601 | return SR_OK; | |
602 | } | |
603 | ||
3ffb6964 BV |
604 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
605 | void *cb_data) | |
ca3d84cc BV |
606 | { |
607 | struct sr_datafeed_packet packet; | |
608 | ||
609 | /* Avoid compiler warnings. */ | |
3ffb6964 | 610 | (void)sdi; |
ca3d84cc BV |
611 | |
612 | sr_dbg("genericdmm: Stopping acquisition."); | |
613 | ||
614 | /* Send end packet to the session bus. */ | |
615 | sr_dbg("genericdmm: Sending SR_DF_END."); | |
616 | packet.type = SR_DF_END; | |
617 | sr_session_send(cb_data, &packet); | |
618 | ||
619 | return SR_OK; | |
620 | } | |
621 | ||
622 | SR_PRIV struct sr_dev_driver genericdmm_driver_info = { | |
623 | .name = "genericdmm", | |
624 | .longname = "Generic DMM", | |
625 | .api_version = 1, | |
626 | .init = hw_init, | |
627 | .cleanup = hw_cleanup, | |
61136ea6 | 628 | .scan = hw_scan, |
811deee4 BV |
629 | .dev_list = hw_dev_list, |
630 | .dev_clear = clear_instances, | |
ca3d84cc BV |
631 | .dev_open = hw_dev_open, |
632 | .dev_close = hw_dev_close, | |
6910bf6b | 633 | .info_get = hw_info_get, |
ca3d84cc BV |
634 | .dev_config_set = hw_dev_config_set, |
635 | .dev_acquisition_start = hw_dev_acquisition_start, | |
636 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
301a5e4c | 637 | .priv = NULL, |
ca3d84cc | 638 | }; |