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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 | 65 | static libusb_context *genericdmm_usb_context = NULL; |
69b07d14 | 66 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
ca3d84cc | 67 | |
0c632d36 UH |
68 | static GSList *connect_serial(const char *conn, const char *serialcomm) |
69 | { | |
70 | GSList *devices; | |
71 | ||
72 | devices = NULL; | |
73 | ||
74 | /* TODO */ | |
75 | sr_dbg("Not yet implemented."); | |
76 | ||
77 | return devices; | |
78 | } | |
ca3d84cc | 79 | |
0c632d36 | 80 | GSList *genericdmm_connect(const char *conn, const char *serialcomm) |
bbb40871 | 81 | { |
0c632d36 | 82 | GSList *devices, *l; |
bbb40871 | 83 | struct sr_dev_inst *sdi; |
301a5e4c | 84 | struct dev_context *devc; |
0c632d36 | 85 | struct drv_context *drvc; |
3c6ce226 | 86 | struct sr_probe *probe; |
0c632d36 UH |
87 | struct libusb_device *ldev; |
88 | int i, devcnt; | |
bbb40871 | 89 | |
301a5e4c BV |
90 | drvc = gdi->priv; |
91 | ||
0c632d36 | 92 | devices = NULL; |
bbb40871 | 93 | |
0c632d36 UH |
94 | if (serialcomm) |
95 | /* Must be a serial port. */ | |
96 | return connect_serial(conn, serialcomm); | |
bbb40871 | 97 | |
0c632d36 | 98 | if (!(l = sr_usb_connect(genericdmm_usb_context, conn))) { |
bbb40871 BV |
99 | return NULL; |
100 | } | |
101 | ||
0c632d36 UH |
102 | for (i = 0; i < (int)g_slist_length(l); i++) { |
103 | ldev = (struct libusb_device *)l->data; | |
bbb40871 | 104 | |
301a5e4c | 105 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
2980cc24 | 106 | sr_err("Device context malloc failed."); |
886a52b6 | 107 | return NULL; |
bbb40871 BV |
108 | } |
109 | ||
301a5e4c | 110 | devcnt = g_slist_length(drvc->instances); |
3c6ce226 | 111 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, |
d6db79a4 | 112 | NULL, NULL, NULL))) { |
2980cc24 | 113 | sr_err("sr_dev_inst_new returned NULL."); |
bbb40871 BV |
114 | return NULL; |
115 | } | |
301a5e4c | 116 | sdi->priv = devc; |
3c6ce226 BV |
117 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1"))) |
118 | return NULL; | |
119 | sdi->probes = g_slist_append(sdi->probes, probe); | |
301a5e4c | 120 | devc->usb = sr_usb_dev_inst_new( |
0c632d36 UH |
121 | libusb_get_bus_number(ldev), |
122 | libusb_get_device_address(ldev), NULL); | |
bbb40871 | 123 | devices = g_slist_append(devices, sdi); |
bbb40871 | 124 | |
bbb40871 | 125 | return devices; |
0c632d36 | 126 | } |
bbb40871 BV |
127 | |
128 | return NULL; | |
129 | } | |
130 | ||
3a0fe402 BV |
131 | static GSList *default_scan(GSList *options) |
132 | { | |
133 | GSList *l, *devices; | |
134 | struct sr_hwopt *opt; | |
135 | const char *conn, *serialcomm; | |
136 | ||
137 | devices = NULL; | |
138 | conn = serialcomm = NULL; | |
139 | for (l = options; l; l = l->next) { | |
140 | opt = l->data; | |
141 | switch (opt->hwopt) { | |
142 | case SR_HWOPT_CONN: | |
143 | conn = opt->value; | |
144 | break; | |
145 | case SR_HWOPT_SERIALCOMM: | |
146 | serialcomm = opt->value; | |
147 | break; | |
148 | } | |
149 | } | |
150 | if (conn) | |
151 | devices = genericdmm_connect(conn, serialcomm); | |
152 | ||
153 | return devices; | |
154 | } | |
155 | ||
811deee4 BV |
156 | static int clear_instances(void) |
157 | { | |
158 | GSList *l; | |
159 | struct sr_dev_inst *sdi; | |
160 | struct dev_context *devc; | |
161 | struct drv_context *drvc; | |
162 | ||
163 | if (!(drvc = gdi->priv)) | |
164 | return SR_OK; | |
165 | ||
166 | /* Properly close and free all devices. */ | |
167 | for (l = drvc->instances; l; l = l->next) { | |
168 | if (!(sdi = l->data)) { | |
169 | /* Log error, but continue cleaning up the rest. */ | |
2980cc24 | 170 | sr_err("sdi was NULL, continuing."); |
811deee4 BV |
171 | continue; |
172 | } | |
173 | if (!(devc = sdi->priv)) { | |
174 | /* Log error, but continue cleaning up the rest. */ | |
2980cc24 | 175 | sr_err("sdi->priv was NULL, continuing."); |
811deee4 BV |
176 | continue; |
177 | } | |
178 | ||
179 | if (devc->profile) { | |
180 | switch (devc->profile->transport) { | |
181 | case DMM_TRANSPORT_USBHID: | |
811deee4 BV |
182 | sr_usb_dev_inst_free(devc->usb); |
183 | break; | |
184 | case DMM_TRANSPORT_SERIAL: | |
185 | if (devc->serial && devc->serial->fd != -1) | |
186 | serial_close(devc->serial->fd); | |
187 | sr_serial_dev_inst_free(devc->serial); | |
188 | break; | |
189 | } | |
190 | } | |
191 | ||
192 | sr_dev_inst_free(sdi); | |
193 | } | |
194 | ||
195 | g_slist_free(drvc->instances); | |
196 | drvc->instances = NULL; | |
197 | ||
198 | return SR_OK; | |
199 | } | |
200 | ||
40dda2c3 | 201 | static int hw_init(void) |
ca3d84cc | 202 | { |
301a5e4c BV |
203 | struct drv_context *drvc; |
204 | ||
205 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
2980cc24 | 206 | sr_err("Driver context malloc failed."); |
886a52b6 | 207 | return SR_ERR_MALLOC; |
301a5e4c | 208 | } |
ca3d84cc | 209 | |
ca3d84cc | 210 | if (libusb_init(&genericdmm_usb_context) != 0) { |
2980cc24 | 211 | sr_err("Failed to initialize USB."); |
61136ea6 | 212 | return SR_ERR; |
ca3d84cc BV |
213 | } |
214 | ||
301a5e4c | 215 | gdi->priv = drvc; |
61136ea6 BV |
216 | |
217 | return SR_OK; | |
218 | } | |
219 | ||
3a0fe402 | 220 | static GSList *hw_scan(GSList *options) |
61136ea6 | 221 | { |
3a0fe402 BV |
222 | GSList *l, *ldef, *defopts, *newopts, *devices; |
223 | struct sr_hwopt *opt, *defopt; | |
224 | struct dev_profile *pr, *profile; | |
d6db79a4 | 225 | struct sr_dev_inst *sdi; |
301a5e4c | 226 | struct drv_context *drvc; |
3c6ce226 | 227 | struct dev_context *devc; |
3a0fe402 BV |
228 | const char *model; |
229 | ||
301a5e4c BV |
230 | drvc = gdi->priv; |
231 | ||
3a0fe402 BV |
232 | /* Separate model from the options list. */ |
233 | model = NULL; | |
234 | newopts = NULL; | |
235 | for (l = options; l; l = l->next) { | |
236 | opt = l->data; | |
237 | if (opt->hwopt == SR_HWOPT_MODEL) | |
238 | model = opt->value; | |
239 | else | |
240 | /* New list with references to the original data. */ | |
241 | newopts = g_slist_append(newopts, opt); | |
242 | } | |
243 | if (!model) { | |
d6db79a4 | 244 | /* This driver only works when a model is specified. */ |
3a0fe402 BV |
245 | return NULL; |
246 | } | |
61136ea6 | 247 | |
3a0fe402 BV |
248 | /* Find a profile with this model name. */ |
249 | profile = NULL; | |
250 | for (pr = dev_profiles; pr->modelid; pr++) { | |
251 | if (!strcmp(pr->modelid, model)) { | |
252 | profile = pr; | |
253 | break; | |
254 | } | |
ca3d84cc | 255 | } |
3a0fe402 BV |
256 | if (!profile) { |
257 | sr_err("Unknown model %s.", model); | |
258 | return NULL; | |
259 | } | |
260 | ||
261 | /* Initialize the DMM chip driver. */ | |
262 | if (profile->chip->init) | |
263 | profile->chip->init(); | |
ca3d84cc | 264 | |
3a0fe402 BV |
265 | /* Convert the profile's default options list to a GSList. */ |
266 | defopts = NULL; | |
267 | for (opt = profile->defaults_opts; opt->hwopt; opt++) { | |
268 | /* New list with references to const data in the profile. */ | |
269 | defopts = g_slist_append(defopts, opt); | |
ca3d84cc | 270 | } |
ca3d84cc | 271 | |
3a0fe402 BV |
272 | /* Options given as argument to this function override the |
273 | * profile's default options. | |
274 | */ | |
275 | for (ldef = defopts; ldef; ldef = ldef->next) { | |
276 | defopt = ldef->data; | |
277 | for (l = newopts; l; l = l->next) { | |
278 | opt = l->data; | |
279 | if (opt->hwopt == defopt->hwopt) { | |
280 | /* Override the default, and drop it from the | |
281 | * options list. | |
282 | */ | |
283 | ldef->data = l->data; | |
284 | newopts = g_slist_remove(newopts, opt); | |
285 | break; | |
286 | } | |
287 | } | |
288 | } | |
289 | /* Whatever is left in newopts wasn't in the default options. */ | |
290 | defopts = g_slist_concat(defopts, newopts); | |
291 | g_slist_free(newopts); | |
292 | ||
293 | if (profile->chip->scan) | |
294 | /* The DMM chip driver wants to do its own scanning. */ | |
295 | devices = profile->chip->scan(defopts); | |
296 | else | |
297 | devices = default_scan(defopts); | |
298 | g_slist_free(defopts); | |
299 | ||
300 | if (devices) { | |
301 | /* TODO: need to fix up sdi->index fields */ | |
d6db79a4 BV |
302 | for (l = devices; l; l = l->next) { |
303 | /* The default connection-based scanner doesn't really | |
304 | * know about profiles, so it never filled in the vendor | |
305 | * or model. Do that now. | |
306 | */ | |
307 | sdi = l->data; | |
3c6ce226 BV |
308 | devc = sdi->priv; |
309 | devc->profile = profile; | |
d6db79a4 BV |
310 | sdi->driver = gdi; |
311 | if (!sdi->vendor) | |
312 | sdi->vendor = g_strdup(profile->vendor); | |
313 | if (!sdi->model) | |
314 | sdi->model = g_strdup(profile->model); | |
315 | /* Add a copy of these new devices to the driver instances. */ | |
301a5e4c | 316 | drvc->instances = g_slist_append(drvc->instances, l->data); |
d6db79a4 | 317 | } |
3a0fe402 BV |
318 | } |
319 | ||
320 | return devices; | |
ca3d84cc BV |
321 | } |
322 | ||
811deee4 BV |
323 | static GSList *hw_dev_list(void) |
324 | { | |
325 | struct drv_context *drvc; | |
326 | ||
327 | drvc = gdi->priv; | |
328 | ||
329 | return drvc->instances; | |
330 | } | |
331 | ||
25a0f108 | 332 | static int hw_dev_open(struct sr_dev_inst *sdi) |
ca3d84cc | 333 | { |
301a5e4c | 334 | struct dev_context *devc; |
3c6ce226 | 335 | int ret; |
ca3d84cc | 336 | |
301a5e4c | 337 | if (!(devc = sdi->priv)) { |
2980cc24 | 338 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
339 | return SR_ERR_BUG; |
340 | } | |
341 | ||
3c6ce226 | 342 | ret = SR_OK; |
301a5e4c | 343 | switch (devc->profile->transport) { |
ca3d84cc | 344 | case DMM_TRANSPORT_USBHID: |
0c632d36 UH |
345 | if (sdi->status == SR_ST_ACTIVE) { |
346 | sr_err("Device already in use."); | |
347 | ret = SR_ERR; | |
348 | } else { | |
349 | ret = sr_usb_open(genericdmm_usb_context, devc->usb); | |
350 | } | |
ca3d84cc BV |
351 | break; |
352 | case DMM_TRANSPORT_SERIAL: | |
2980cc24 | 353 | sr_dbg("Opening serial port '%s'.", devc->serial->port); |
301a5e4c BV |
354 | devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK); |
355 | if (devc->serial->fd == -1) { | |
2980cc24 | 356 | sr_err("Couldn't open serial port '%s'.", |
301a5e4c | 357 | devc->serial->port); |
3c6ce226 | 358 | ret = SR_ERR; |
ca3d84cc | 359 | } |
301a5e4c | 360 | // serial_set_params(devc->serial->fd, 2400, 8, 0, 1, 2); |
ca3d84cc BV |
361 | break; |
362 | default: | |
363 | sr_err("No transport set."); | |
3c6ce226 | 364 | ret = SR_ERR; |
ca3d84cc BV |
365 | } |
366 | ||
3c6ce226 | 367 | return ret; |
ca3d84cc BV |
368 | } |
369 | ||
25a0f108 | 370 | static int hw_dev_close(struct sr_dev_inst *sdi) |
ca3d84cc | 371 | { |
301a5e4c | 372 | struct dev_context *devc; |
ca3d84cc | 373 | |
301a5e4c | 374 | if (!(devc = sdi->priv)) { |
2980cc24 | 375 | sr_err("%s: sdi->priv was NULL.", __func__); |
ca3d84cc BV |
376 | return SR_ERR_BUG; |
377 | } | |
378 | ||
301a5e4c | 379 | switch (devc->profile->transport) { |
ca3d84cc BV |
380 | case DMM_TRANSPORT_USBHID: |
381 | /* TODO */ | |
382 | break; | |
383 | case DMM_TRANSPORT_SERIAL: | |
301a5e4c BV |
384 | if (devc->serial && devc->serial->fd != -1) { |
385 | serial_close(devc->serial->fd); | |
386 | devc->serial->fd = -1; | |
ca3d84cc BV |
387 | sdi->status = SR_ST_INACTIVE; |
388 | } | |
389 | break; | |
390 | } | |
391 | ||
392 | return SR_OK; | |
393 | } | |
394 | ||
395 | static int hw_cleanup(void) | |
396 | { | |
ca3d84cc | 397 | |
811deee4 | 398 | clear_instances(); |
ca3d84cc BV |
399 | |
400 | if (genericdmm_usb_context) | |
401 | libusb_exit(genericdmm_usb_context); | |
402 | ||
403 | return SR_OK; | |
404 | } | |
405 | ||
c4a1de59 | 406 | static int hw_info_get(int info_id, const void **data, |
6910bf6b | 407 | const struct sr_dev_inst *sdi) |
ca3d84cc | 408 | { |
301a5e4c | 409 | struct dev_context *devc; |
ca3d84cc | 410 | |
6f57fd96 | 411 | (void)sdi; |
301a5e4c | 412 | (void)devc; |
6f57fd96 | 413 | |
c4a1de59 | 414 | switch (info_id) { |
f1a14ea7 BV |
415 | case SR_DI_HWOPTS: |
416 | *data = hwopts; | |
417 | break; | |
418 | case SR_DI_HWCAPS: | |
419 | *data = hwcaps; | |
420 | break; | |
ca3d84cc | 421 | case SR_DI_NUM_PROBES: |
6910bf6b | 422 | *data = GINT_TO_POINTER(1); |
ca3d84cc BV |
423 | break; |
424 | case SR_DI_PROBE_NAMES: | |
6910bf6b | 425 | *data = probe_names; |
ca3d84cc BV |
426 | break; |
427 | case SR_DI_CUR_SAMPLERATE: | |
428 | /* TODO get rid of this */ | |
6910bf6b | 429 | *data = NULL; |
3c6ce226 | 430 | return SR_ERR_ARG; |
ca3d84cc BV |
431 | break; |
432 | default: | |
433 | /* Unknown device info ID. */ | |
6910bf6b | 434 | return SR_ERR_ARG; |
ca3d84cc BV |
435 | } |
436 | ||
6910bf6b | 437 | return SR_OK; |
ca3d84cc BV |
438 | } |
439 | ||
6f4b1868 BV |
440 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
441 | const void *value) | |
ca3d84cc | 442 | { |
301a5e4c | 443 | struct dev_context *devc; |
ca3d84cc | 444 | |
301a5e4c | 445 | if (!(devc = sdi->priv)) { |
2980cc24 | 446 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
447 | return SR_ERR_BUG; |
448 | } | |
449 | ||
ca3d84cc BV |
450 | switch (hwcap) { |
451 | case SR_HWCAP_LIMIT_MSEC: | |
3c6ce226 | 452 | /* TODO: not yet implemented */ |
ca3d84cc | 453 | if (*(const uint64_t *)value == 0) { |
2980cc24 | 454 | sr_err("LIMIT_MSEC can't be 0."); |
ca3d84cc BV |
455 | return SR_ERR; |
456 | } | |
301a5e4c | 457 | devc->limit_msec = *(const uint64_t *)value; |
2980cc24 | 458 | sr_dbg("Setting time limit to %" PRIu64 "ms.", |
301a5e4c | 459 | devc->limit_msec); |
ca3d84cc BV |
460 | break; |
461 | case SR_HWCAP_LIMIT_SAMPLES: | |
301a5e4c | 462 | devc->limit_samples = *(const uint64_t *)value; |
2980cc24 | 463 | sr_dbg("Setting sample limit to %" PRIu64 ".", |
301a5e4c | 464 | devc->limit_samples); |
ca3d84cc | 465 | break; |
ca3d84cc | 466 | default: |
2980cc24 | 467 | sr_err("Unknown capability: %d.", hwcap); |
ca3d84cc BV |
468 | return SR_ERR; |
469 | break; | |
470 | } | |
471 | ||
472 | return SR_OK; | |
473 | } | |
474 | ||
475 | static int receive_data(int fd, int revents, void *cb_data) | |
476 | { | |
477 | struct sr_dev_inst *sdi; | |
301a5e4c | 478 | struct dev_context *devc; |
ca3d84cc | 479 | |
3c6ce226 BV |
480 | (void)revents; |
481 | ||
ca3d84cc | 482 | if (!(sdi = cb_data)) |
3c6ce226 | 483 | return TRUE; |
ca3d84cc | 484 | |
301a5e4c | 485 | if (!(devc = sdi->priv)) |
3c6ce226 | 486 | return TRUE; |
ca3d84cc | 487 | |
301a5e4c | 488 | switch (devc->profile->transport) { |
ca3d84cc | 489 | case DMM_TRANSPORT_USBHID: |
3c6ce226 BV |
490 | if (devc->profile->chip->data) |
491 | devc->profile->chip->data(sdi); | |
ca3d84cc BV |
492 | break; |
493 | case DMM_TRANSPORT_SERIAL: | |
494 | /* TODO */ | |
3c6ce226 | 495 | fd = fd; |
ca3d84cc BV |
496 | break; |
497 | } | |
498 | ||
3c6ce226 BV |
499 | if (devc->num_samples >= devc->limit_samples) |
500 | hw_dev_acquisition_stop(sdi, cb_data); | |
501 | ||
ca3d84cc BV |
502 | return TRUE; |
503 | } | |
504 | ||
3ffb6964 BV |
505 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
506 | void *cb_data) | |
ca3d84cc BV |
507 | { |
508 | struct sr_datafeed_packet packet; | |
509 | struct sr_datafeed_header header; | |
510 | struct sr_datafeed_meta_analog meta; | |
301a5e4c | 511 | struct dev_context *devc; |
ca3d84cc | 512 | |
301a5e4c | 513 | if (!(devc = sdi->priv)) { |
2980cc24 | 514 | sr_err("sdi->priv was NULL."); |
ca3d84cc BV |
515 | return SR_ERR_BUG; |
516 | } | |
517 | ||
2980cc24 | 518 | sr_dbg("Starting acquisition."); |
ca3d84cc | 519 | |
301a5e4c | 520 | devc->cb_data = cb_data; |
ca3d84cc BV |
521 | |
522 | /* Send header packet to the session bus. */ | |
2980cc24 | 523 | sr_dbg("Sending SR_DF_HEADER."); |
ca3d84cc BV |
524 | packet.type = SR_DF_HEADER; |
525 | packet.payload = (uint8_t *)&header; | |
526 | header.feed_version = 1; | |
527 | gettimeofday(&header.starttime, NULL); | |
301a5e4c | 528 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
529 | |
530 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
2980cc24 | 531 | sr_dbg("Sending SR_DF_META_ANALOG."); |
ca3d84cc BV |
532 | packet.type = SR_DF_META_ANALOG; |
533 | packet.payload = &meta; | |
534 | meta.num_probes = 1; | |
301a5e4c | 535 | sr_session_send(devc->cb_data, &packet); |
ca3d84cc BV |
536 | |
537 | /* Hook up a proxy handler to receive data from the device. */ | |
301a5e4c | 538 | switch (devc->profile->transport) { |
ca3d84cc | 539 | case DMM_TRANSPORT_USBHID: |
3c6ce226 BV |
540 | /* Callously using stdin here. This works because no G_IO_* flags |
541 | * are set, but will certainly break when any other driver does | |
542 | * this, and runs at the same time as genericdmm. | |
543 | * We'll need a timeout-only source when revamping the whole | |
544 | * driver source system. | |
545 | */ | |
546 | sr_source_add(0, 0, devc->profile->poll_timeout, | |
547 | receive_data, (void *)sdi); | |
ca3d84cc BV |
548 | break; |
549 | case DMM_TRANSPORT_SERIAL: | |
550 | /* TODO serial FD setup */ | |
301a5e4c | 551 | // sr_source_add(devc->serial->fd, G_IO_IN, -1, receive_data, sdi); |
ca3d84cc BV |
552 | break; |
553 | } | |
554 | ||
555 | return SR_OK; | |
556 | } | |
557 | ||
69b07d14 | 558 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
ca3d84cc BV |
559 | { |
560 | struct sr_datafeed_packet packet; | |
561 | ||
3ffb6964 | 562 | (void)sdi; |
ca3d84cc | 563 | |
2980cc24 | 564 | sr_dbg("Stopping acquisition."); |
ca3d84cc BV |
565 | |
566 | /* Send end packet to the session bus. */ | |
2980cc24 | 567 | sr_dbg("Sending SR_DF_END."); |
ca3d84cc BV |
568 | packet.type = SR_DF_END; |
569 | sr_session_send(cb_data, &packet); | |
570 | ||
3c6ce226 BV |
571 | sr_source_remove(0); |
572 | ||
ca3d84cc BV |
573 | return SR_OK; |
574 | } | |
575 | ||
576 | SR_PRIV struct sr_dev_driver genericdmm_driver_info = { | |
577 | .name = "genericdmm", | |
578 | .longname = "Generic DMM", | |
579 | .api_version = 1, | |
580 | .init = hw_init, | |
581 | .cleanup = hw_cleanup, | |
61136ea6 | 582 | .scan = hw_scan, |
811deee4 BV |
583 | .dev_list = hw_dev_list, |
584 | .dev_clear = clear_instances, | |
ca3d84cc BV |
585 | .dev_open = hw_dev_open, |
586 | .dev_close = hw_dev_close, | |
6910bf6b | 587 | .info_get = hw_info_get, |
ca3d84cc BV |
588 | .dev_config_set = hw_dev_config_set, |
589 | .dev_acquisition_start = hw_dev_acquisition_start, | |
590 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
301a5e4c | 591 | .priv = NULL, |
ca3d84cc | 592 | }; |