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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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 3 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, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include "protocol.h" | |
22 | ||
23 | static const struct fx2lafw_profile supported_fx2[] = { | |
24 | /* | |
25 | * CWAV USBee AX | |
26 | * EE Electronics ESLA201A | |
27 | * ARMFLY AX-Pro | |
28 | */ | |
29 | { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, | |
30 | FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", | |
31 | 0, NULL, NULL}, | |
32 | /* | |
33 | * CWAV USBee DX | |
34 | * XZL-Studio DX | |
35 | */ | |
36 | { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL, | |
37 | FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw", | |
38 | DEV_CAPS_16BIT, NULL, NULL }, | |
39 | ||
40 | /* | |
41 | * CWAV USBee SX | |
42 | */ | |
43 | { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, | |
44 | FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", | |
45 | 0, NULL, NULL}, | |
46 | ||
47 | /* | |
48 | * Saleae Logic | |
49 | * EE Electronics ESLA100 | |
50 | * Robomotic MiniLogic | |
51 | * Robomotic BugLogic 3 | |
52 | */ | |
53 | { 0x0925, 0x3881, "Saleae", "Logic", NULL, | |
54 | FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", | |
55 | 0, NULL, NULL}, | |
56 | ||
57 | /* | |
58 | * Default Cypress FX2 without EEPROM, e.g.: | |
59 | * Lcsoft Mini Board | |
60 | * Braintechnology USB Interface V2.x | |
61 | */ | |
62 | { 0x04B4, 0x8613, "Cypress", "FX2", NULL, | |
63 | FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw", | |
64 | DEV_CAPS_16BIT, NULL, NULL }, | |
65 | ||
66 | /* | |
67 | * Braintechnology USB-LPS | |
68 | */ | |
69 | { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL, | |
70 | FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw", | |
71 | DEV_CAPS_16BIT, NULL, NULL }, | |
72 | ||
73 | { 0, 0, 0, 0, 0, 0, 0, 0, 0 } | |
74 | }; | |
75 | ||
76 | static const int32_t hwopts[] = { | |
77 | SR_CONF_CONN, | |
78 | }; | |
79 | ||
80 | static const int32_t hwcaps[] = { | |
81 | SR_CONF_LOGIC_ANALYZER, | |
82 | SR_CONF_TRIGGER_MATCH, | |
83 | SR_CONF_SAMPLERATE, | |
84 | ||
85 | /* These are really implemented in the driver, not the hardware. */ | |
86 | SR_CONF_LIMIT_SAMPLES, | |
87 | SR_CONF_CONTINUOUS, | |
88 | }; | |
89 | ||
90 | static const char *channel_names[] = { | |
91 | "0", "1", "2", "3", "4", "5", "6", "7", | |
92 | "8", "9", "10", "11", "12", "13", "14", "15", | |
93 | NULL, | |
94 | }; | |
95 | ||
96 | static const int32_t soft_trigger_matches[] = { | |
97 | SR_TRIGGER_ZERO, | |
98 | SR_TRIGGER_ONE, | |
99 | SR_TRIGGER_RISING, | |
100 | SR_TRIGGER_FALLING, | |
101 | SR_TRIGGER_EDGE, | |
102 | }; | |
103 | ||
104 | static const uint64_t samplerates[] = { | |
105 | SR_KHZ(20), | |
106 | SR_KHZ(25), | |
107 | SR_KHZ(50), | |
108 | SR_KHZ(100), | |
109 | SR_KHZ(200), | |
110 | SR_KHZ(250), | |
111 | SR_KHZ(500), | |
112 | SR_MHZ(1), | |
113 | SR_MHZ(2), | |
114 | SR_MHZ(3), | |
115 | SR_MHZ(4), | |
116 | SR_MHZ(6), | |
117 | SR_MHZ(8), | |
118 | SR_MHZ(12), | |
119 | SR_MHZ(16), | |
120 | SR_MHZ(24), | |
121 | }; | |
122 | ||
123 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info; | |
124 | static struct sr_dev_driver *di = &fx2lafw_driver_info; | |
125 | ||
126 | static int init(struct sr_context *sr_ctx) | |
127 | { | |
128 | return std_init(sr_ctx, di, LOG_PREFIX); | |
129 | } | |
130 | ||
131 | static GSList *scan(GSList *options) | |
132 | { | |
133 | struct drv_context *drvc; | |
134 | struct dev_context *devc; | |
135 | struct sr_dev_inst *sdi; | |
136 | struct sr_usb_dev_inst *usb; | |
137 | struct sr_channel *ch; | |
138 | struct sr_config *src; | |
139 | const struct fx2lafw_profile *prof; | |
140 | GSList *l, *devices, *conn_devices; | |
141 | struct libusb_device_descriptor des; | |
142 | libusb_device **devlist; | |
143 | struct libusb_device_handle *hdl; | |
144 | int devcnt, num_logic_channels, ret, i, j; | |
145 | const char *conn; | |
146 | char manufacturer[64], product[64]; | |
147 | ||
148 | drvc = di->priv; | |
149 | ||
150 | conn = NULL; | |
151 | for (l = options; l; l = l->next) { | |
152 | src = l->data; | |
153 | switch (src->key) { | |
154 | case SR_CONF_CONN: | |
155 | conn = g_variant_get_string(src->data, NULL); | |
156 | break; | |
157 | } | |
158 | } | |
159 | if (conn) | |
160 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
161 | else | |
162 | conn_devices = NULL; | |
163 | ||
164 | /* Find all fx2lafw compatible devices and upload firmware to them. */ | |
165 | devices = NULL; | |
166 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
167 | for (i = 0; devlist[i]; i++) { | |
168 | if (conn) { | |
169 | usb = NULL; | |
170 | for (l = conn_devices; l; l = l->next) { | |
171 | usb = l->data; | |
172 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
173 | && usb->address == libusb_get_device_address(devlist[i])) | |
174 | break; | |
175 | } | |
176 | if (!l) | |
177 | /* This device matched none of the ones that | |
178 | * matched the conn specification. */ | |
179 | continue; | |
180 | } | |
181 | ||
182 | if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) { | |
183 | sr_warn("Failed to get device descriptor: %s.", | |
184 | libusb_error_name(ret)); | |
185 | continue; | |
186 | } | |
187 | ||
188 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) | |
189 | continue; | |
190 | ||
191 | if (des.iManufacturer == 0) { | |
192 | manufacturer[0] = '\0'; | |
193 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
194 | des.iManufacturer, (unsigned char *) manufacturer, | |
195 | sizeof(manufacturer))) < 0) { | |
196 | sr_warn("Failed to get manufacturer string descriptor: %s.", | |
197 | libusb_error_name(ret)); | |
198 | continue; | |
199 | } | |
200 | ||
201 | if (des.iProduct == 0) { | |
202 | product[0] = '\0'; | |
203 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
204 | des.iProduct, (unsigned char *) product, | |
205 | sizeof(product))) < 0) { | |
206 | sr_warn("Failed to get product string descriptor: %s.", | |
207 | libusb_error_name(ret)); | |
208 | continue; | |
209 | } | |
210 | ||
211 | libusb_close(hdl); | |
212 | ||
213 | prof = NULL; | |
214 | for (j = 0; supported_fx2[j].vid; j++) { | |
215 | if (des.idVendor == supported_fx2[j].vid && | |
216 | des.idProduct == supported_fx2[j].pid && | |
217 | (!supported_fx2[j].usb_manufacturer || | |
218 | !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) && | |
219 | (!supported_fx2[j].usb_manufacturer || | |
220 | !strcmp(product, supported_fx2[j].usb_product))) { | |
221 | prof = &supported_fx2[j]; | |
222 | break; | |
223 | } | |
224 | } | |
225 | ||
226 | /* Skip if the device was not found. */ | |
227 | if (!prof) | |
228 | continue; | |
229 | ||
230 | devcnt = g_slist_length(drvc->instances); | |
231 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, | |
232 | prof->vendor, prof->model, prof->model_version); | |
233 | if (!sdi) | |
234 | return NULL; | |
235 | sdi->driver = di; | |
236 | ||
237 | /* Fill in channellist according to this device's profile. */ | |
238 | num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; | |
239 | for (j = 0; j < num_logic_channels; j++) { | |
240 | if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, | |
241 | channel_names[j]))) | |
242 | return NULL; | |
243 | sdi->channels = g_slist_append(sdi->channels, ch); | |
244 | } | |
245 | ||
246 | devc = fx2lafw_dev_new(); | |
247 | devc->profile = prof; | |
248 | sdi->priv = devc; | |
249 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
250 | devices = g_slist_append(devices, sdi); | |
251 | ||
252 | if (fx2lafw_check_conf_profile(devlist[i])) { | |
253 | /* Already has the firmware, so fix the new address. */ | |
254 | sr_dbg("Found an fx2lafw device."); | |
255 | sdi->status = SR_ST_INACTIVE; | |
256 | sdi->inst_type = SR_INST_USB; | |
257 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
258 | libusb_get_device_address(devlist[i]), NULL); | |
259 | } else { | |
260 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
261 | prof->firmware) == SR_OK) | |
262 | /* Store when this device's FW was updated. */ | |
263 | devc->fw_updated = g_get_monotonic_time(); | |
264 | else | |
265 | sr_err("Firmware upload failed for " | |
266 | "device %d.", devcnt); | |
267 | sdi->inst_type = SR_INST_USB; | |
268 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
269 | 0xff, NULL); | |
270 | } | |
271 | } | |
272 | libusb_free_device_list(devlist, 1); | |
273 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
274 | ||
275 | return devices; | |
276 | } | |
277 | ||
278 | static GSList *dev_list(void) | |
279 | { | |
280 | return ((struct drv_context *)(di->priv))->instances; | |
281 | } | |
282 | ||
283 | static int dev_open(struct sr_dev_inst *sdi) | |
284 | { | |
285 | struct sr_usb_dev_inst *usb; | |
286 | struct dev_context *devc; | |
287 | int ret; | |
288 | int64_t timediff_us, timediff_ms; | |
289 | ||
290 | devc = sdi->priv; | |
291 | usb = sdi->conn; | |
292 | ||
293 | /* | |
294 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
295 | * milliseconds for the FX2 to renumerate. | |
296 | */ | |
297 | ret = SR_ERR; | |
298 | if (devc->fw_updated > 0) { | |
299 | sr_info("Waiting for device to reset."); | |
300 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
301 | g_usleep(300 * 1000); | |
302 | timediff_ms = 0; | |
303 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
304 | if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK) | |
305 | break; | |
306 | g_usleep(100 * 1000); | |
307 | ||
308 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
309 | timediff_ms = timediff_us / 1000; | |
310 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
311 | } | |
312 | if (ret != SR_OK) { | |
313 | sr_err("Device failed to renumerate."); | |
314 | return SR_ERR; | |
315 | } | |
316 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
317 | } else { | |
318 | sr_info("Firmware upload was not needed."); | |
319 | ret = fx2lafw_dev_open(sdi, di); | |
320 | } | |
321 | ||
322 | if (ret != SR_OK) { | |
323 | sr_err("Unable to open device."); | |
324 | return SR_ERR; | |
325 | } | |
326 | ||
327 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
328 | if (ret != 0) { | |
329 | switch (ret) { | |
330 | case LIBUSB_ERROR_BUSY: | |
331 | sr_err("Unable to claim USB interface. Another " | |
332 | "program or driver has already claimed it."); | |
333 | break; | |
334 | case LIBUSB_ERROR_NO_DEVICE: | |
335 | sr_err("Device has been disconnected."); | |
336 | break; | |
337 | default: | |
338 | sr_err("Unable to claim interface: %s.", | |
339 | libusb_error_name(ret)); | |
340 | break; | |
341 | } | |
342 | ||
343 | return SR_ERR; | |
344 | } | |
345 | ||
346 | if (devc->cur_samplerate == 0) { | |
347 | /* Samplerate hasn't been set; default to the slowest one. */ | |
348 | devc->cur_samplerate = samplerates[0]; | |
349 | } | |
350 | ||
351 | return SR_OK; | |
352 | } | |
353 | ||
354 | static int dev_close(struct sr_dev_inst *sdi) | |
355 | { | |
356 | struct sr_usb_dev_inst *usb; | |
357 | ||
358 | usb = sdi->conn; | |
359 | if (usb->devhdl == NULL) | |
360 | return SR_ERR; | |
361 | ||
362 | sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", | |
363 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
364 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
365 | libusb_close(usb->devhdl); | |
366 | usb->devhdl = NULL; | |
367 | sdi->status = SR_ST_INACTIVE; | |
368 | ||
369 | return SR_OK; | |
370 | } | |
371 | ||
372 | static int cleanup(void) | |
373 | { | |
374 | int ret; | |
375 | struct drv_context *drvc; | |
376 | ||
377 | if (!(drvc = di->priv)) | |
378 | return SR_OK; | |
379 | ||
380 | ret = std_dev_clear(di, NULL); | |
381 | ||
382 | g_free(drvc); | |
383 | di->priv = NULL; | |
384 | ||
385 | return ret; | |
386 | } | |
387 | ||
388 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, | |
389 | const struct sr_channel_group *cg) | |
390 | { | |
391 | struct dev_context *devc; | |
392 | struct sr_usb_dev_inst *usb; | |
393 | char str[128]; | |
394 | ||
395 | (void)cg; | |
396 | ||
397 | if (!sdi) | |
398 | return SR_ERR_ARG; | |
399 | ||
400 | devc = sdi->priv; | |
401 | ||
402 | switch (id) { | |
403 | case SR_CONF_CONN: | |
404 | if (!sdi->conn) | |
405 | return SR_ERR_ARG; | |
406 | usb = sdi->conn; | |
407 | if (usb->address == 255) | |
408 | /* Device still needs to re-enumerate after firmware | |
409 | * upload, so we don't know its (future) address. */ | |
410 | return SR_ERR; | |
411 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
412 | *data = g_variant_new_string(str); | |
413 | break; | |
414 | case SR_CONF_LIMIT_SAMPLES: | |
415 | *data = g_variant_new_uint64(devc->limit_samples); | |
416 | break; | |
417 | case SR_CONF_SAMPLERATE: | |
418 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
419 | break; | |
420 | default: | |
421 | return SR_ERR_NA; | |
422 | } | |
423 | ||
424 | return SR_OK; | |
425 | } | |
426 | ||
427 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
428 | const struct sr_channel_group *cg) | |
429 | { | |
430 | struct dev_context *devc; | |
431 | uint64_t arg; | |
432 | unsigned int i; | |
433 | int ret; | |
434 | ||
435 | (void)cg; | |
436 | ||
437 | if (!sdi) | |
438 | return SR_ERR_ARG; | |
439 | ||
440 | if (sdi->status != SR_ST_ACTIVE) | |
441 | return SR_ERR; | |
442 | ||
443 | devc = sdi->priv; | |
444 | ||
445 | ret = SR_OK; | |
446 | ||
447 | switch (id) | |
448 | { | |
449 | case SR_CONF_SAMPLERATE: | |
450 | arg = g_variant_get_uint64(data); | |
451 | for (i = 0; i < ARRAY_SIZE(samplerates); i++) { | |
452 | if (samplerates[i] == arg) { | |
453 | devc->cur_samplerate = arg; | |
454 | break; | |
455 | } | |
456 | } | |
457 | if (i == ARRAY_SIZE(samplerates)) | |
458 | ret = SR_ERR_ARG; | |
459 | break; | |
460 | case SR_CONF_LIMIT_SAMPLES: | |
461 | devc->limit_samples = g_variant_get_uint64(data); | |
462 | break; | |
463 | default: | |
464 | ret = SR_ERR_NA; | |
465 | } | |
466 | ||
467 | return ret; | |
468 | } | |
469 | ||
470 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
471 | const struct sr_channel_group *cg) | |
472 | { | |
473 | GVariant *gvar; | |
474 | GVariantBuilder gvb; | |
475 | ||
476 | (void)sdi; | |
477 | (void)cg; | |
478 | ||
479 | switch (key) { | |
480 | case SR_CONF_SCAN_OPTIONS: | |
481 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
482 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
483 | break; | |
484 | case SR_CONF_DEVICE_OPTIONS: | |
485 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
486 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
487 | break; | |
488 | case SR_CONF_SAMPLERATE: | |
489 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
490 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
491 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
492 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
493 | *data = g_variant_builder_end(&gvb); | |
494 | break; | |
495 | case SR_CONF_TRIGGER_MATCH: | |
496 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
497 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
498 | sizeof(int32_t)); | |
499 | break; | |
500 | default: | |
501 | return SR_ERR_NA; | |
502 | } | |
503 | ||
504 | return SR_OK; | |
505 | } | |
506 | ||
507 | static int receive_data(int fd, int revents, void *cb_data) | |
508 | { | |
509 | struct timeval tv; | |
510 | struct drv_context *drvc; | |
511 | ||
512 | (void)fd; | |
513 | (void)revents; | |
514 | (void)cb_data; | |
515 | ||
516 | drvc = di->priv; | |
517 | ||
518 | tv.tv_sec = tv.tv_usec = 0; | |
519 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
520 | ||
521 | return TRUE; | |
522 | } | |
523 | ||
524 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
525 | { | |
526 | struct dev_context *devc; | |
527 | struct drv_context *drvc; | |
528 | struct sr_usb_dev_inst *usb; | |
529 | struct sr_trigger *trigger; | |
530 | struct libusb_transfer *transfer; | |
531 | unsigned int i, timeout, num_transfers; | |
532 | int ret; | |
533 | unsigned char *buf; | |
534 | size_t size; | |
535 | ||
536 | if (sdi->status != SR_ST_ACTIVE) | |
537 | return SR_ERR_DEV_CLOSED; | |
538 | ||
539 | drvc = di->priv; | |
540 | devc = sdi->priv; | |
541 | usb = sdi->conn; | |
542 | ||
543 | devc->cb_data = cb_data; | |
544 | devc->sent_samples = 0; | |
545 | devc->acq_aborted = FALSE; | |
546 | devc->empty_transfer_count = 0; | |
547 | ||
548 | if ((trigger = sr_session_trigger_get(sdi->session))) { | |
549 | devc->stl = soft_trigger_logic_new(sdi, trigger); | |
550 | devc->trigger_fired = FALSE; | |
551 | } else | |
552 | devc->trigger_fired = TRUE; | |
553 | ||
554 | timeout = fx2lafw_get_timeout(devc); | |
555 | num_transfers = fx2lafw_get_number_of_transfers(devc); | |
556 | size = fx2lafw_get_buffer_size(devc); | |
557 | devc->submitted_transfers = 0; | |
558 | ||
559 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
560 | if (!devc->transfers) { | |
561 | sr_err("USB transfers malloc failed."); | |
562 | return SR_ERR_MALLOC; | |
563 | } | |
564 | ||
565 | devc->num_transfers = num_transfers; | |
566 | for (i = 0; i < num_transfers; i++) { | |
567 | if (!(buf = g_try_malloc(size))) { | |
568 | sr_err("USB transfer buffer malloc failed."); | |
569 | return SR_ERR_MALLOC; | |
570 | } | |
571 | transfer = libusb_alloc_transfer(0); | |
572 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
573 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
574 | fx2lafw_receive_transfer, (void *)sdi, timeout); | |
575 | if ((ret = libusb_submit_transfer(transfer)) != 0) { | |
576 | sr_err("Failed to submit transfer: %s.", | |
577 | libusb_error_name(ret)); | |
578 | libusb_free_transfer(transfer); | |
579 | g_free(buf); | |
580 | fx2lafw_abort_acquisition(devc); | |
581 | return SR_ERR; | |
582 | } | |
583 | devc->transfers[i] = transfer; | |
584 | devc->submitted_transfers++; | |
585 | } | |
586 | ||
587 | devc->ctx = drvc->sr_ctx; | |
588 | ||
589 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, NULL); | |
590 | ||
591 | /* Send header packet to the session bus. */ | |
592 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
593 | ||
594 | if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) { | |
595 | fx2lafw_abort_acquisition(devc); | |
596 | return ret; | |
597 | } | |
598 | ||
599 | return SR_OK; | |
600 | } | |
601 | ||
602 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
603 | { | |
604 | (void)cb_data; | |
605 | ||
606 | fx2lafw_abort_acquisition(sdi->priv); | |
607 | ||
608 | return SR_OK; | |
609 | } | |
610 | ||
611 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { | |
612 | .name = "fx2lafw", | |
613 | .longname = "fx2lafw (generic driver for FX2 based LAs)", | |
614 | .api_version = 1, | |
615 | .init = init, | |
616 | .cleanup = cleanup, | |
617 | .scan = scan, | |
618 | .dev_list = dev_list, | |
619 | .dev_clear = NULL, | |
620 | .config_get = config_get, | |
621 | .config_set = config_set, | |
622 | .config_list = config_list, | |
623 | .dev_open = dev_open, | |
624 | .dev_close = dev_close, | |
625 | .dev_acquisition_start = dev_acquisition_start, | |
626 | .dev_acquisition_stop = dev_acquisition_stop, | |
627 | .priv = NULL, | |
628 | }; |