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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 | ||
b84c13d7 | 29 | extern SR_PRIV struct dmmchip dmmchip_victor70c; |
ca3d84cc | 30 | |
7fc754a0 BV |
31 | static struct sr_hwopt victor_70c_vidpid[] = { |
32 | { SR_HWOPT_CONN, "1244.d237" }, | |
33 | { 0, NULL } | |
34 | }; | |
ca3d84cc | 35 | static struct dev_profile dev_profiles[] = { |
b84c13d7 BV |
36 | { "victor-70c", "Victor", "70C", &dmmchip_victor70c, |
37 | DMM_TRANSPORT_USBHID, 1000, victor_70c_vidpid | |
7fc754a0 | 38 | }, |
3c6ce226 | 39 | { NULL, NULL, NULL, NULL, 0, 0, NULL } |
ca3d84cc BV |
40 | }; |
41 | ||
f1a14ea7 BV |
42 | static const int hwopts[] = { |
43 | SR_HWOPT_MODEL, | |
44 | SR_HWOPT_CONN, | |
45 | SR_HWOPT_SERIALCOMM, | |
46 | 0, | |
47 | }; | |
48 | ||
ca3d84cc BV |
49 | static const int hwcaps[] = { |
50 | SR_HWCAP_MULTIMETER, | |
51 | SR_HWCAP_LIMIT_SAMPLES, | |
52 | SR_HWCAP_LIMIT_MSEC, | |
53 | SR_HWCAP_CONTINUOUS, | |
ca3d84cc BV |
54 | 0, |
55 | }; | |
56 | ||
57 | static const char *probe_names[] = { | |
58 | "Probe", | |
59 | NULL, | |
60 | }; | |
61 | ||
75337758 BV |
62 | SR_PRIV struct sr_dev_driver genericdmm_driver_info; |
63 | static struct sr_dev_driver *gdi = &genericdmm_driver_info; | |
64 | /* TODO need a way to keep this local to the static library */ | |
3c6ce226 BV |
65 | static libusb_context *genericdmm_usb_context = NULL; |
66 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, | |
67 | void *cb_data); | |
ca3d84cc | 68 | |
0c632d36 UH |
69 | static GSList *connect_serial(const char *conn, const char *serialcomm) |
70 | { | |
71 | GSList *devices; | |
72 | ||
73 | devices = NULL; | |
74 | ||
75 | /* TODO */ | |
76 | sr_dbg("Not yet implemented."); | |
77 | ||
78 | return devices; | |
79 | } | |
ca3d84cc | 80 | |
0c632d36 | 81 | GSList *genericdmm_connect(const char *conn, const char *serialcomm) |
bbb40871 | 82 | { |
0c632d36 | 83 | GSList *devices, *l; |
bbb40871 | 84 | struct sr_dev_inst *sdi; |
301a5e4c | 85 | struct dev_context *devc; |
0c632d36 | 86 | struct drv_context *drvc; |
3c6ce226 | 87 | struct sr_probe *probe; |
0c632d36 UH |
88 | struct libusb_device *ldev; |
89 | int i, devcnt; | |
bbb40871 | 90 | |
301a5e4c BV |
91 | drvc = gdi->priv; |
92 | ||
0c632d36 | 93 | devices = NULL; |
bbb40871 | 94 | |
0c632d36 UH |
95 | if (serialcomm) |
96 | /* Must be a serial port. */ | |
97 | return connect_serial(conn, serialcomm); | |
bbb40871 | 98 | |
0c632d36 | 99 | if (!(l = sr_usb_connect(genericdmm_usb_context, conn))) { |
bbb40871 BV |
100 | return NULL; |
101 | } | |
102 | ||
0c632d36 UH |
103 | for (i = 0; i < (int)g_slist_length(l); i++) { |
104 | ldev = (struct libusb_device *)l->data; | |
bbb40871 | 105 | |
301a5e4c | 106 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
2980cc24 | 107 | sr_err("Device context malloc failed."); |
886a52b6 | 108 | return NULL; |
bbb40871 BV |
109 | } |
110 | ||
301a5e4c | 111 | devcnt = g_slist_length(drvc->instances); |
3c6ce226 | 112 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, |
d6db79a4 | 113 | NULL, NULL, NULL))) { |
2980cc24 | 114 | sr_err("sr_dev_inst_new returned NULL."); |
bbb40871 BV |
115 | return NULL; |
116 | } | |
301a5e4c | 117 | sdi->priv = devc; |
3c6ce226 BV |
118 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) |
119 | return NULL; | |
120 | sdi->probes = g_slist_append(sdi->probes, probe); | |
301a5e4c | 121 | devc->usb = sr_usb_dev_inst_new( |
0c632d36 UH |
122 | libusb_get_bus_number(ldev), |
123 | libusb_get_device_address(ldev), NULL); | |
bbb40871 | 124 | devices = g_slist_append(devices, sdi); |
bbb40871 | 125 | |
bbb40871 | 126 | return devices; |
0c632d36 | 127 | } |
bbb40871 BV |
128 | |
129 | return NULL; | |
130 | } | |
131 | ||
3a0fe402 BV |
132 | static GSList *default_scan(GSList *options) |
133 | { | |
134 | GSList *l, *devices; | |
135 | struct sr_hwopt *opt; | |
136 | const char *conn, *serialcomm; | |
137 | ||
138 | devices = NULL; | |
139 | conn = serialcomm = NULL; | |
140 | for (l = options; l; l = l->next) { | |
141 | opt = l->data; | |
142 | switch (opt->hwopt) { | |
143 | case SR_HWOPT_CONN: | |
144 | conn = opt->value; | |
145 | break; | |
146 | case SR_HWOPT_SERIALCOMM: | |
147 | serialcomm = opt->value; | |
148 | break; | |
149 | } | |
150 | } | |
151 | if (conn) | |
152 | devices = genericdmm_connect(conn, serialcomm); | |
153 | ||
154 | return devices; | |
155 | } | |
156 | ||
811deee4 BV |
157 | static int clear_instances(void) |
158 | { | |
159 | GSList *l; | |
160 | struct sr_dev_inst *sdi; | |
161 | struct dev_context *devc; | |
162 | struct drv_context *drvc; | |
163 | ||
164 | if (!(drvc = gdi->priv)) | |
165 | return SR_OK; | |
166 | ||
167 | /* Properly close and free all devices. */ | |
168 | for (l = drvc->instances; l; l = l->next) { | |
169 | if (!(sdi = l->data)) { | |
170 | /* Log error, but continue cleaning up the rest. */ | |
2980cc24 | 171 | sr_err("sdi was NULL, continuing."); |
811deee4 BV |
172 | continue; |
173 | } | |
174 | if (!(devc = sdi->priv)) { | |
175 | /* Log error, but continue cleaning up the rest. */ | |
2980cc24 | 176 | sr_err("sdi->priv was NULL, continuing."); |
811deee4 BV |
177 | continue; |
178 | } | |
179 | ||
180 | if (devc->profile) { | |
181 | switch (devc->profile->transport) { | |
182 | case DMM_TRANSPORT_USBHID: | |
811deee4 BV |
183 | sr_usb_dev_inst_free(devc->usb); |
184 | break; | |
185 | case DMM_TRANSPORT_SERIAL: | |
186 | if (devc->serial && devc->serial->fd != -1) | |
187 | serial_close(devc->serial->fd); | |
188 | sr_serial_dev_inst_free(devc->serial); | |
189 | break; | |
190 | } | |
191 | } | |
192 | ||
193 | sr_dev_inst_free(sdi); | |
194 | } | |
195 | ||
196 | g_slist_free(drvc->instances); | |
197 | drvc->instances = NULL; | |
198 | ||
199 | return SR_OK; | |
200 | } | |
201 | ||
40dda2c3 | 202 | static int hw_init(void) |
ca3d84cc | 203 | { |
301a5e4c BV |
204 | struct drv_context *drvc; |
205 | ||
206 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
2980cc24 | 207 | sr_err("Driver context malloc failed."); |
886a52b6 | 208 | return SR_ERR_MALLOC; |
301a5e4c | 209 | } |
ca3d84cc | 210 | |
ca3d84cc | 211 | if (libusb_init(&genericdmm_usb_context) != 0) { |
2980cc24 | 212 | sr_err("Failed to initialize USB."); |
61136ea6 | 213 | return SR_ERR; |
ca3d84cc BV |
214 | } |
215 | ||
301a5e4c | 216 | gdi->priv = drvc; |
61136ea6 BV |
217 | |
218 | return SR_OK; | |
219 | } | |
220 | ||
3a0fe402 | 221 | static GSList *hw_scan(GSList *options) |
61136ea6 | 222 | { |
3a0fe402 BV |
223 | GSList *l, *ldef, *defopts, *newopts, *devices; |
224 | struct sr_hwopt *opt, *defopt; | |
225 | struct dev_profile *pr, *profile; | |
d6db79a4 | 226 | struct sr_dev_inst *sdi; |
301a5e4c | 227 | struct drv_context *drvc; |
3c6ce226 | 228 | struct dev_context *devc; |
3a0fe402 BV |
229 | const char *model; |
230 | ||
301a5e4c BV |
231 | drvc = gdi->priv; |
232 | ||
3a0fe402 BV |
233 | /* Separate model from the options list. */ |
234 | model = NULL; | |
235 | newopts = NULL; | |
236 | for (l = options; l; l = l->next) { | |
237 | opt = l->data; | |
238 | if (opt->hwopt == SR_HWOPT_MODEL) | |
239 | model = opt->value; | |
240 | else | |
241 | /* New list with references to the original data. */ | |
242 | newopts = g_slist_append(newopts, opt); | |
243 | } | |
244 | if (!model) { | |
d6db79a4 | 245 | /* This driver only works when a model is specified. */ |
3a0fe402 BV |
246 | return NULL; |
247 | } | |
61136ea6 | 248 | |
3a0fe402 BV |
249 | /* Find a profile with this model name. */ |
250 | profile = NULL; | |
251 | for (pr = dev_profiles; pr->modelid; pr++) { | |
252 | if (!strcmp(pr->modelid, model)) { | |
253 | profile = pr; | |
254 | break; | |
255 | } | |
ca3d84cc | 256 | } |
3a0fe402 BV |
257 | if (!profile) { |
258 | sr_err("Unknown model %s.", model); | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | /* Initialize the DMM chip driver. */ | |
263 | if (profile->chip->init) | |
264 | profile->chip->init(); | |
ca3d84cc | 265 | |
3a0fe402 BV |
266 | /* Convert the profile's default options list to a GSList. */ |
267 | defopts = NULL; | |
268 | for (opt = profile->defaults_opts; opt->hwopt; opt++) { | |
269 | /* New list with references to const data in the profile. */ | |
270 | defopts = g_slist_append(defopts, opt); | |
ca3d84cc | 271 | } |
ca3d84cc | 272 | |
3a0fe402 BV |
273 | /* Options given as argument to this function override the |
274 | * profile's default options. | |
275 | */ | |
276 | for (ldef = defopts; ldef; ldef = ldef->next) { | |
277 | defopt = ldef->data; | |
278 | for (l = newopts; l; l = l->next) { | |
279 | opt = l->data; | |
280 | if (opt->hwopt == defopt->hwopt) { | |
281 | /* Override the default, and drop it from the | |
282 | * options list. | |
283 | */ | |
284 | ldef->data = l->data; | |
285 | newopts = g_slist_remove(newopts, opt); | |
286 | break; | |
287 | } | |
288 | } | |
289 | } | |
290 | /* Whatever is left in newopts wasn't in the default options. */ | |
291 | defopts = g_slist_concat(defopts, newopts); | |
292 | g_slist_free(newopts); | |
293 | ||
294 | if (profile->chip->scan) | |
295 | /* The DMM chip driver wants to do its own scanning. */ | |
296 | devices = profile->chip->scan(defopts); | |
297 | else | |
298 | devices = default_scan(defopts); | |
299 | g_slist_free(defopts); | |
300 | ||
301 | if (devices) { | |
302 | /* TODO: need to fix up sdi->index fields */ | |
d6db79a4 BV |
303 | for (l = devices; l; l = l->next) { |
304 | /* The default connection-based scanner doesn't really | |
305 | * know about profiles, so it never filled in the vendor | |
306 | * or model. Do that now. | |
307 | */ | |
308 | sdi = l->data; | |
3c6ce226 BV |
309 | devc = sdi->priv; |
310 | devc->profile = profile; | |
d6db79a4 BV |
311 | sdi->driver = gdi; |
312 | if (!sdi->vendor) | |
313 | sdi->vendor = g_strdup(profile->vendor); | |
314 | if (!sdi->model) | |
315 | sdi->model = g_strdup(profile->model); | |
316 | /* Add a copy of these new devices to the driver instances. */ | |
301a5e4c | 317 | drvc->instances = g_slist_append(drvc->instances, l->data); |
d6db79a4 | 318 | } |
3a0fe402 BV |
319 | } |
320 | ||
321 | return devices; | |
ca3d84cc BV |
322 | } |
323 | ||
811deee4 BV |
324 | static GSList *hw_dev_list(void) |
325 | { | |
326 | struct drv_context *drvc; | |
327 | ||
328 | drvc = gdi->priv; | |
329 | ||
330 | return drvc->instances; | |
331 | } | |
332 | ||
25a0f108 | 333 | static int hw_dev_open(struct sr_dev_inst *sdi) |
ca3d84cc | 334 | { |
301a5e4c | 335 | struct dev_context *devc; |
3c6ce226 | 336 | int ret; |
ca3d84cc | 337 | |
301a5e4c | 338 | if (!(devc = sdi->priv)) { |
2980cc24 | 339 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
340 | return SR_ERR_BUG; |
341 | } | |
342 | ||
3c6ce226 | 343 | ret = SR_OK; |
301a5e4c | 344 | switch (devc->profile->transport) { |
ca3d84cc | 345 | case DMM_TRANSPORT_USBHID: |
0c632d36 UH |
346 | if (sdi->status == SR_ST_ACTIVE) { |
347 | sr_err("Device already in use."); | |
348 | ret = SR_ERR; | |
349 | } else { | |
350 | ret = sr_usb_open(genericdmm_usb_context, devc->usb); | |
351 | } | |
ca3d84cc BV |
352 | break; |
353 | case DMM_TRANSPORT_SERIAL: | |
2980cc24 | 354 | sr_dbg("Opening serial port '%s'.", devc->serial->port); |
301a5e4c BV |
355 | devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK); |
356 | if (devc->serial->fd == -1) { | |
2980cc24 | 357 | sr_err("Couldn't open serial port '%s'.", |
301a5e4c | 358 | devc->serial->port); |
3c6ce226 | 359 | ret = SR_ERR; |
ca3d84cc | 360 | } |
301a5e4c | 361 | // serial_set_params(devc->serial->fd, 2400, 8, 0, 1, 2); |
ca3d84cc BV |
362 | break; |
363 | default: | |
364 | sr_err("No transport set."); | |
3c6ce226 | 365 | ret = SR_ERR; |
ca3d84cc BV |
366 | } |
367 | ||
3c6ce226 | 368 | return ret; |
ca3d84cc BV |
369 | } |
370 | ||
25a0f108 | 371 | static int hw_dev_close(struct sr_dev_inst *sdi) |
ca3d84cc | 372 | { |
301a5e4c | 373 | struct dev_context *devc; |
ca3d84cc | 374 | |
301a5e4c | 375 | if (!(devc = sdi->priv)) { |
2980cc24 | 376 | sr_err("%s: sdi->priv was NULL.", __func__); |
ca3d84cc BV |
377 | return SR_ERR_BUG; |
378 | } | |
379 | ||
301a5e4c | 380 | switch (devc->profile->transport) { |
ca3d84cc BV |
381 | case DMM_TRANSPORT_USBHID: |
382 | /* TODO */ | |
383 | break; | |
384 | case DMM_TRANSPORT_SERIAL: | |
301a5e4c BV |
385 | if (devc->serial && devc->serial->fd != -1) { |
386 | serial_close(devc->serial->fd); | |
387 | devc->serial->fd = -1; | |
ca3d84cc BV |
388 | sdi->status = SR_ST_INACTIVE; |
389 | } | |
390 | break; | |
391 | } | |
392 | ||
393 | return SR_OK; | |
394 | } | |
395 | ||
396 | static int hw_cleanup(void) | |
397 | { | |
ca3d84cc | 398 | |
811deee4 | 399 | clear_instances(); |
ca3d84cc BV |
400 | |
401 | if (genericdmm_usb_context) | |
402 | libusb_exit(genericdmm_usb_context); | |
403 | ||
404 | return SR_OK; | |
405 | } | |
406 | ||
c4a1de59 | 407 | static int hw_info_get(int info_id, const void **data, |
6910bf6b | 408 | const struct sr_dev_inst *sdi) |
ca3d84cc | 409 | { |
301a5e4c | 410 | struct dev_context *devc; |
ca3d84cc | 411 | |
6f57fd96 | 412 | (void)sdi; |
301a5e4c | 413 | (void)devc; |
6f57fd96 | 414 | |
c4a1de59 | 415 | switch (info_id) { |
f1a14ea7 BV |
416 | case SR_DI_HWOPTS: |
417 | *data = hwopts; | |
418 | break; | |
419 | case SR_DI_HWCAPS: | |
420 | *data = hwcaps; | |
421 | break; | |
ca3d84cc | 422 | case SR_DI_NUM_PROBES: |
6910bf6b | 423 | *data = GINT_TO_POINTER(1); |
ca3d84cc BV |
424 | break; |
425 | case SR_DI_PROBE_NAMES: | |
6910bf6b | 426 | *data = probe_names; |
ca3d84cc BV |
427 | break; |
428 | case SR_DI_CUR_SAMPLERATE: | |
429 | /* TODO get rid of this */ | |
6910bf6b | 430 | *data = NULL; |
3c6ce226 | 431 | return SR_ERR_ARG; |
ca3d84cc BV |
432 | break; |
433 | default: | |
434 | /* Unknown device info ID. */ | |
6910bf6b | 435 | return SR_ERR_ARG; |
ca3d84cc BV |
436 | } |
437 | ||
6910bf6b | 438 | return SR_OK; |
ca3d84cc BV |
439 | } |
440 | ||
6f4b1868 BV |
441 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
442 | const void *value) | |
ca3d84cc | 443 | { |
301a5e4c | 444 | struct dev_context *devc; |
ca3d84cc | 445 | |
301a5e4c | 446 | if (!(devc = sdi->priv)) { |
2980cc24 | 447 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
448 | return SR_ERR_BUG; |
449 | } | |
450 | ||
ca3d84cc BV |
451 | switch (hwcap) { |
452 | case SR_HWCAP_LIMIT_MSEC: | |
3c6ce226 | 453 | /* TODO: not yet implemented */ |
ca3d84cc | 454 | if (*(const uint64_t *)value == 0) { |
2980cc24 | 455 | sr_err("LIMIT_MSEC can't be 0."); |
ca3d84cc BV |
456 | return SR_ERR; |
457 | } | |
301a5e4c | 458 | devc->limit_msec = *(const uint64_t *)value; |
2980cc24 | 459 | sr_dbg("Setting time limit to %" PRIu64 "ms.", |
301a5e4c | 460 | devc->limit_msec); |
ca3d84cc BV |
461 | break; |
462 | case SR_HWCAP_LIMIT_SAMPLES: | |
301a5e4c | 463 | devc->limit_samples = *(const uint64_t *)value; |
2980cc24 | 464 | sr_dbg("Setting sample limit to %" PRIu64 ".", |
301a5e4c | 465 | devc->limit_samples); |
ca3d84cc | 466 | break; |
ca3d84cc | 467 | default: |
2980cc24 | 468 | sr_err("Unknown capability: %d.", hwcap); |
ca3d84cc BV |
469 | return SR_ERR; |
470 | break; | |
471 | } | |
472 | ||
473 | return SR_OK; | |
474 | } | |
475 | ||
476 | static int receive_data(int fd, int revents, void *cb_data) | |
477 | { | |
478 | struct sr_dev_inst *sdi; | |
301a5e4c | 479 | struct dev_context *devc; |
ca3d84cc | 480 | |
3c6ce226 BV |
481 | (void)revents; |
482 | ||
ca3d84cc | 483 | if (!(sdi = cb_data)) |
3c6ce226 | 484 | return TRUE; |
ca3d84cc | 485 | |
301a5e4c | 486 | if (!(devc = sdi->priv)) |
3c6ce226 | 487 | return TRUE; |
ca3d84cc | 488 | |
301a5e4c | 489 | switch (devc->profile->transport) { |
ca3d84cc | 490 | case DMM_TRANSPORT_USBHID: |
3c6ce226 BV |
491 | if (devc->profile->chip->data) |
492 | devc->profile->chip->data(sdi); | |
ca3d84cc BV |
493 | break; |
494 | case DMM_TRANSPORT_SERIAL: | |
495 | /* TODO */ | |
3c6ce226 | 496 | fd = fd; |
ca3d84cc BV |
497 | break; |
498 | } | |
499 | ||
3c6ce226 BV |
500 | if (devc->num_samples >= devc->limit_samples) |
501 | hw_dev_acquisition_stop(sdi, cb_data); | |
502 | ||
ca3d84cc BV |
503 | return TRUE; |
504 | } | |
505 | ||
3ffb6964 BV |
506 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
507 | void *cb_data) | |
ca3d84cc BV |
508 | { |
509 | struct sr_datafeed_packet packet; | |
510 | struct sr_datafeed_header header; | |
511 | struct sr_datafeed_meta_analog meta; | |
301a5e4c | 512 | struct dev_context *devc; |
ca3d84cc | 513 | |
301a5e4c | 514 | if (!(devc = sdi->priv)) { |
2980cc24 | 515 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
516 | return SR_ERR_BUG; |
517 | } | |
518 | ||
2980cc24 | 519 | sr_dbg("Starting acquisition."); |
ca3d84cc | 520 | |
301a5e4c | 521 | devc->cb_data = cb_data; |
ca3d84cc BV |
522 | |
523 | /* Send header packet to the session bus. */ | |
2980cc24 | 524 | sr_dbg("Sending SR_DF_HEADER."); |
ca3d84cc BV |
525 | packet.type = SR_DF_HEADER; |
526 | packet.payload = (uint8_t *)&header; | |
527 | header.feed_version = 1; | |
528 | gettimeofday(&header.starttime, NULL); | |
301a5e4c | 529 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
530 | |
531 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
2980cc24 | 532 | sr_dbg("Sending SR_DF_META_ANALOG."); |
ca3d84cc BV |
533 | packet.type = SR_DF_META_ANALOG; |
534 | packet.payload = &meta; | |
535 | meta.num_probes = 1; | |
301a5e4c | 536 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
537 | |
538 | /* Hook up a proxy handler to receive data from the device. */ | |
301a5e4c | 539 | switch (devc->profile->transport) { |
ca3d84cc | 540 | case DMM_TRANSPORT_USBHID: |
3c6ce226 BV |
541 | /* Callously using stdin here. This works because no G_IO_* flags |
542 | * are set, but will certainly break when any other driver does | |
543 | * this, and runs at the same time as genericdmm. | |
544 | * We'll need a timeout-only source when revamping the whole | |
545 | * driver source system. | |
546 | */ | |
547 | sr_source_add(0, 0, devc->profile->poll_timeout, | |
548 | receive_data, (void *)sdi); | |
ca3d84cc BV |
549 | break; |
550 | case DMM_TRANSPORT_SERIAL: | |
551 | /* TODO serial FD setup */ | |
301a5e4c | 552 | // sr_source_add(devc->serial->fd, G_IO_IN, -1, receive_data, sdi); |
ca3d84cc BV |
553 | break; |
554 | } | |
555 | ||
556 | return SR_OK; | |
557 | } | |
558 | ||
3ffb6964 BV |
559 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
560 | void *cb_data) | |
ca3d84cc BV |
561 | { |
562 | struct sr_datafeed_packet packet; | |
563 | ||
564 | /* Avoid compiler warnings. */ | |
3ffb6964 | 565 | (void)sdi; |
ca3d84cc | 566 | |
2980cc24 | 567 | sr_dbg("Stopping acquisition."); |
ca3d84cc BV |
568 | |
569 | /* Send end packet to the session bus. */ | |
2980cc24 | 570 | sr_dbg("Sending SR_DF_END."); |
ca3d84cc BV |
571 | packet.type = SR_DF_END; |
572 | sr_session_send(cb_data, &packet); | |
573 | ||
3c6ce226 BV |
574 | sr_source_remove(0); |
575 | ||
ca3d84cc BV |
576 | return SR_OK; |
577 | } | |
578 | ||
579 | SR_PRIV struct sr_dev_driver genericdmm_driver_info = { | |
580 | .name = "genericdmm", | |
581 | .longname = "Generic DMM", | |
582 | .api_version = 1, | |
583 | .init = hw_init, | |
584 | .cleanup = hw_cleanup, | |
61136ea6 | 585 | .scan = hw_scan, |
811deee4 BV |
586 | .dev_list = hw_dev_list, |
587 | .dev_clear = clear_instances, | |
ca3d84cc BV |
588 | .dev_open = hw_dev_open, |
589 | .dev_close = hw_dev_close, | |
6910bf6b | 590 | .info_get = hw_info_get, |
ca3d84cc BV |
591 | .dev_config_set = hw_dev_config_set, |
592 | .dev_acquisition_start = hw_dev_acquisition_start, | |
593 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
301a5e4c | 594 | .priv = NULL, |
ca3d84cc | 595 | }; |