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f2cd2deb FS |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de> | |
5 | * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se> | |
6 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
7 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
8 | * | |
9 | * This program is free software: you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation, either version 3 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | /* mostly stolen from src/hardware/saleae-logic16/ */ | |
24 | ||
25 | #include <config.h> | |
a7740b06 | 26 | |
f2cd2deb | 27 | #include <glib.h> |
a7740b06 | 28 | #include <libsigrok/libsigrok.h> |
f2cd2deb | 29 | #include <libusb.h> |
a7740b06 | 30 | #include <math.h> |
f2cd2deb FS |
31 | #include <stdlib.h> |
32 | #include <string.h> | |
a7740b06 | 33 | |
f2cd2deb FS |
34 | #include "libsigrok-internal.h" |
35 | #include "protocol.h" | |
36 | ||
37 | static const uint32_t scanopts[] = { | |
38 | SR_CONF_CONN, | |
39 | }; | |
40 | ||
41 | static const uint32_t drvopts[] = { | |
42 | SR_CONF_LOGIC_ANALYZER, | |
43 | }; | |
44 | ||
45 | static const uint32_t devopts[] = { | |
46 | /* TODO: SR_CONF_CONTINUOUS, */ | |
47 | SR_CONF_CONN | SR_CONF_GET, | |
48 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
49 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET | SR_CONF_LIST, | |
50 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
51 | SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
52 | SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET, | |
53 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
54 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
55 | }; | |
56 | ||
57 | static const int32_t trigger_matches[] = { | |
58 | SR_TRIGGER_ZERO, | |
59 | SR_TRIGGER_ONE, | |
60 | SR_TRIGGER_RISING, | |
61 | SR_TRIGGER_FALLING, | |
62 | }; | |
63 | ||
64 | static const char *channel_names[] = { | |
955ab604 GS |
65 | "0", "1", "2", "3", "4", "5", "6", "7", |
66 | "8", "9", "10", "11", "12", "13", "14", "15", | |
f2cd2deb FS |
67 | }; |
68 | ||
8b172e78 | 69 | static const uint64_t samplerates_la2016[] = { |
f2cd2deb FS |
70 | SR_KHZ(20), |
71 | SR_KHZ(50), | |
72 | SR_KHZ(100), | |
73 | SR_KHZ(200), | |
74 | SR_KHZ(500), | |
75 | SR_MHZ(1), | |
76 | SR_MHZ(2), | |
77 | SR_MHZ(4), | |
78 | SR_MHZ(5), | |
79 | SR_MHZ(8), | |
80 | SR_MHZ(10), | |
81 | SR_MHZ(20), | |
82 | SR_MHZ(50), | |
83 | SR_MHZ(100), | |
84 | SR_MHZ(200), | |
85 | }; | |
86 | ||
8b172e78 KG |
87 | static const uint64_t samplerates_la1016[] = { |
88 | SR_KHZ(20), | |
89 | SR_KHZ(50), | |
90 | SR_KHZ(100), | |
91 | SR_KHZ(200), | |
92 | SR_KHZ(500), | |
93 | SR_MHZ(1), | |
94 | SR_MHZ(2), | |
95 | SR_MHZ(4), | |
96 | SR_MHZ(5), | |
97 | SR_MHZ(8), | |
98 | SR_MHZ(10), | |
99 | SR_MHZ(20), | |
100 | SR_MHZ(50), | |
101 | SR_MHZ(100), | |
102 | }; | |
103 | ||
f2cd2deb FS |
104 | static const float logic_threshold_value[] = { |
105 | 1.58, | |
106 | 2.5, | |
107 | 1.165, | |
108 | 1.5, | |
109 | 1.25, | |
110 | 0.9, | |
111 | 0.75, | |
112 | 0.60, | |
113 | 0.45, | |
114 | }; | |
115 | ||
116 | static const char *logic_threshold[] = { | |
117 | "TTL 5V", | |
118 | "CMOS 5V", | |
119 | "CMOS 3.3V", | |
120 | "CMOS 3.0V", | |
121 | "CMOS 2.5V", | |
122 | "CMOS 1.8V", | |
123 | "CMOS 1.5V", | |
124 | "CMOS 1.2V", | |
125 | "CMOS 0.9V", | |
126 | "USER", | |
127 | }; | |
128 | ||
129 | #define MAX_NUM_LOGIC_THRESHOLD_ENTRIES ARRAY_SIZE(logic_threshold) | |
130 | ||
f2cd2deb FS |
131 | static GSList *scan(struct sr_dev_driver *di, 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_config *src; | |
138 | GSList *l; | |
139 | GSList *devices; | |
140 | GSList *conn_devices; | |
141 | struct libusb_device_descriptor des; | |
142 | libusb_device **devlist; | |
143 | unsigned int i, j; | |
144 | const char *conn; | |
145 | char connection_id[64]; | |
146 | int64_t fw_updated; | |
147 | unsigned int dev_addr; | |
148 | ||
149 | drvc = di->context; | |
150 | ||
151 | conn = NULL; | |
152 | for (l = options; l; l = l->next) { | |
153 | src = l->data; | |
154 | switch (src->key) { | |
155 | case SR_CONF_CONN: | |
156 | conn = g_variant_get_string(src->data, NULL); | |
157 | break; | |
158 | } | |
159 | } | |
160 | if (conn) | |
161 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
162 | else | |
163 | conn_devices = NULL; | |
164 | ||
165 | /* Find all LA2016 devices and upload firmware to them. */ | |
166 | devices = NULL; | |
167 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
168 | for (i = 0; devlist[i]; i++) { | |
169 | if (conn) { | |
170 | usb = NULL; | |
171 | for (l = conn_devices; l; l = l->next) { | |
172 | usb = l->data; | |
955ab604 GS |
173 | if (usb->bus == libusb_get_bus_number(devlist[i]) && |
174 | usb->address == libusb_get_device_address(devlist[i])) | |
f2cd2deb FS |
175 | break; |
176 | } | |
955ab604 | 177 | if (!l) { |
f2cd2deb FS |
178 | /* This device matched none of the ones that |
179 | * matched the conn specification. */ | |
180 | continue; | |
955ab604 | 181 | } |
f2cd2deb FS |
182 | } |
183 | ||
184 | libusb_get_device_descriptor(devlist[i], &des); | |
185 | ||
186 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
187 | continue; | |
188 | ||
189 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID) | |
190 | continue; | |
191 | ||
192 | /* Already has the firmware */ | |
193 | sr_dbg("Found a LA2016 device."); | |
194 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
195 | sdi->status = SR_ST_INITIALIZING; | |
196 | sdi->connection_id = g_strdup(connection_id); | |
197 | ||
198 | fw_updated = 0; | |
199 | dev_addr = libusb_get_device_address(devlist[i]); | |
200 | if (des.iProduct != 2) { | |
201 | sr_info("device at '%s' has no firmware loaded!", connection_id); | |
202 | ||
203 | if (la2016_upload_firmware(drvc->sr_ctx, devlist[i], des.idProduct) != SR_OK) { | |
204 | sr_err("uC firmware upload failed!"); | |
205 | g_free(sdi->connection_id); | |
206 | g_free(sdi); | |
207 | continue; | |
208 | } | |
209 | fw_updated = g_get_monotonic_time(); | |
210 | dev_addr = 0xff; /* to mark that we don't know address yet... ugly */ | |
211 | } | |
212 | ||
213 | sdi->vendor = g_strdup("Kingst"); | |
214 | sdi->model = g_strdup("LA2016"); | |
215 | ||
216 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) | |
217 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, channel_names[j]); | |
218 | ||
219 | devices = g_slist_append(devices, sdi); | |
220 | ||
221 | devc = g_malloc0(sizeof(struct dev_context)); | |
222 | sdi->priv = devc; | |
223 | devc->fw_updated = fw_updated; | |
224 | devc->threshold_voltage_idx = 0; | |
225 | devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx]; | |
226 | ||
227 | sdi->status = SR_ST_INACTIVE; | |
228 | sdi->inst_type = SR_INST_USB; | |
229 | ||
230 | sdi->conn = sr_usb_dev_inst_new( | |
231 | libusb_get_bus_number(devlist[i]), | |
232 | dev_addr, NULL); | |
233 | } | |
234 | libusb_free_device_list(devlist, 1); | |
235 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
236 | ||
237 | return std_scan_complete(di, devices); | |
238 | } | |
239 | ||
240 | static int la2016_dev_open(struct sr_dev_inst *sdi) | |
241 | { | |
242 | struct sr_dev_driver *di; | |
243 | libusb_device **devlist; | |
244 | struct sr_usb_dev_inst *usb; | |
245 | struct libusb_device_descriptor des; | |
246 | struct drv_context *drvc; | |
247 | int ret, i, device_count; | |
248 | char connection_id[64]; | |
249 | ||
250 | di = sdi->driver; | |
251 | drvc = di->context; | |
252 | usb = sdi->conn; | |
253 | ret = SR_ERR; | |
254 | ||
255 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
256 | if (device_count < 0) { | |
257 | sr_err("Failed to get device list: %s.", libusb_error_name(device_count)); | |
258 | return SR_ERR; | |
259 | } | |
260 | ||
261 | for (i = 0; i < device_count; i++) { | |
262 | libusb_get_device_descriptor(devlist[i], &des); | |
263 | ||
264 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID || des.iProduct != 2) | |
265 | continue; | |
266 | ||
267 | if ((sdi->status == SR_ST_INITIALIZING) || (sdi->status == SR_ST_INACTIVE)) { | |
268 | /* | |
269 | * Check device by its physical USB bus/port address. | |
270 | */ | |
271 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
272 | continue; | |
273 | ||
274 | if (strcmp(sdi->connection_id, connection_id)) | |
275 | /* This is not the one. */ | |
276 | continue; | |
277 | } | |
278 | ||
279 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
280 | if (usb->address == 0xff) | |
281 | /* | |
282 | * First time we touch this device after FW | |
283 | * upload, so we don't know the address yet. | |
284 | */ | |
285 | usb->address = libusb_get_device_address(devlist[i]); | |
286 | } else { | |
287 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
288 | ret = SR_ERR; | |
289 | break; | |
290 | } | |
291 | ||
292 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
293 | if (ret == LIBUSB_ERROR_BUSY) { | |
294 | sr_err("Unable to claim USB interface. Another " | |
295 | "program or driver has already claimed it."); | |
296 | ret = SR_ERR; | |
297 | break; | |
298 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
299 | sr_err("Device has been disconnected."); | |
300 | ret = SR_ERR; | |
301 | break; | |
302 | } else if (ret != 0) { | |
303 | sr_err("Unable to claim interface: %s.", libusb_error_name(ret)); | |
304 | ret = SR_ERR; | |
305 | break; | |
306 | } | |
307 | ||
308 | if ((ret = la2016_init_device(sdi)) != SR_OK) { | |
309 | sr_err("Failed to init device."); | |
310 | break; | |
311 | } | |
312 | ||
313 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", | |
314 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
315 | ||
316 | ret = SR_OK; | |
317 | ||
318 | break; | |
319 | } | |
320 | ||
321 | libusb_free_device_list(devlist, 1); | |
322 | ||
323 | if (ret != SR_OK) { | |
324 | if (usb->devhdl) { | |
325 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
326 | libusb_close(usb->devhdl); | |
327 | usb->devhdl = NULL; | |
328 | } | |
329 | return SR_ERR; | |
330 | } | |
331 | ||
332 | return SR_OK; | |
333 | } | |
334 | ||
335 | static int dev_open(struct sr_dev_inst *sdi) | |
336 | { | |
337 | struct dev_context *devc; | |
338 | int64_t timediff_us, timediff_ms; | |
339 | uint64_t reset_done; | |
340 | uint64_t now; | |
341 | int ret; | |
342 | ||
343 | devc = sdi->priv; | |
344 | ||
345 | /* | |
346 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
347 | * milliseconds for the FX2 to renumerate. | |
348 | */ | |
349 | ret = SR_ERR; | |
350 | if (devc->fw_updated > 0) { | |
351 | sr_info("Waiting for device to reset after firmware upload."); | |
352 | /* Takes >= 2000ms for the uC to be gone from the USB bus. */ | |
353 | reset_done = devc->fw_updated + 18 * (uint64_t)1e5; /* 1.8 seconds */ | |
354 | now = g_get_monotonic_time(); | |
355 | if (reset_done > now) | |
356 | g_usleep(reset_done - now); | |
357 | timediff_ms = 0; | |
358 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
359 | g_usleep(200 * 1000); | |
360 | ||
361 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
362 | timediff_ms = timediff_us / 1000; | |
955ab604 | 363 | |
f2cd2deb FS |
364 | if ((ret = la2016_dev_open(sdi)) == SR_OK) |
365 | break; | |
366 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
367 | } | |
368 | if (ret != SR_OK) { | |
369 | sr_err("Device failed to re-enumerate."); | |
370 | return SR_ERR; | |
371 | } | |
372 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
955ab604 | 373 | } else { |
f2cd2deb | 374 | ret = la2016_dev_open(sdi); |
955ab604 | 375 | } |
f2cd2deb FS |
376 | |
377 | if (ret != SR_OK) { | |
378 | sr_err("Unable to open device."); | |
379 | return SR_ERR; | |
380 | } | |
381 | ||
382 | return SR_OK; | |
383 | } | |
384 | ||
385 | static int dev_close(struct sr_dev_inst *sdi) | |
386 | { | |
387 | struct sr_usb_dev_inst *usb; | |
388 | ||
389 | usb = sdi->conn; | |
390 | ||
391 | if (!usb->devhdl) | |
392 | return SR_ERR_BUG; | |
393 | ||
394 | la2016_deinit_device(sdi); | |
395 | ||
396 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", | |
397 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
398 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
399 | libusb_close(usb->devhdl); | |
400 | usb->devhdl = NULL; | |
401 | ||
402 | return SR_OK; | |
403 | } | |
404 | ||
955ab604 GS |
405 | static int config_get(uint32_t key, GVariant **data, |
406 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
407 | { |
408 | struct dev_context *devc; | |
409 | struct sr_usb_dev_inst *usb; | |
410 | double rounded; | |
411 | ||
412 | (void)cg; | |
413 | ||
414 | if (!sdi) | |
415 | return SR_ERR_ARG; | |
416 | devc = sdi->priv; | |
417 | ||
418 | switch (key) { | |
419 | case SR_CONF_CONN: | |
420 | if (!sdi->conn) | |
421 | return SR_ERR_ARG; | |
422 | usb = sdi->conn; | |
955ab604 | 423 | if (usb->address == 255) { |
f2cd2deb FS |
424 | /* Device still needs to re-enumerate after firmware |
425 | * upload, so we don't know its (future) address. */ | |
426 | return SR_ERR; | |
955ab604 | 427 | } |
f2cd2deb FS |
428 | *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); |
429 | break; | |
430 | case SR_CONF_SAMPLERATE: | |
431 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
432 | break; | |
433 | case SR_CONF_LIMIT_SAMPLES: | |
434 | *data = g_variant_new_uint64(devc->limit_samples); | |
435 | break; | |
436 | case SR_CONF_CAPTURE_RATIO: | |
437 | *data = g_variant_new_uint64(devc->capture_ratio); | |
438 | break; | |
439 | case SR_CONF_VOLTAGE_THRESHOLD: | |
440 | rounded = (int)(devc->threshold_voltage / 0.1) * 0.1; | |
441 | *data = std_gvar_tuple_double(rounded, rounded + 0.1); | |
442 | return SR_OK; | |
443 | case SR_CONF_LOGIC_THRESHOLD: | |
444 | *data = g_variant_new_string(logic_threshold[devc->threshold_voltage_idx]); | |
445 | break; | |
446 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
447 | *data = g_variant_new_double(devc->threshold_voltage); | |
448 | break; | |
955ab604 | 449 | |
f2cd2deb FS |
450 | default: |
451 | return SR_ERR_NA; | |
452 | } | |
453 | ||
454 | return SR_OK; | |
455 | } | |
456 | ||
955ab604 GS |
457 | static int config_set(uint32_t key, GVariant *data, |
458 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
459 | { |
460 | struct dev_context *devc; | |
461 | double low, high; | |
462 | int idx; | |
463 | ||
464 | (void)cg; | |
465 | ||
466 | devc = sdi->priv; | |
467 | ||
468 | switch (key) { | |
469 | case SR_CONF_SAMPLERATE: | |
470 | devc->cur_samplerate = g_variant_get_uint64(data); | |
471 | break; | |
472 | case SR_CONF_LIMIT_SAMPLES: | |
473 | devc->limit_samples = g_variant_get_uint64(data); | |
474 | break; | |
475 | case SR_CONF_CAPTURE_RATIO: | |
476 | devc->capture_ratio = g_variant_get_uint64(data); | |
477 | break; | |
478 | case SR_CONF_VOLTAGE_THRESHOLD: | |
479 | g_variant_get(data, "(dd)", &low, &high); | |
480 | devc->threshold_voltage = (low + high) / 2.0; | |
481 | devc->threshold_voltage_idx = MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1; /* USER */ | |
482 | break; | |
483 | case SR_CONF_LOGIC_THRESHOLD: { | |
484 | if ((idx = std_str_idx(data, logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES)) < 0) | |
485 | return SR_ERR_ARG; | |
486 | if (idx == MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1) { | |
487 | /* user threshold */ | |
488 | } else { | |
489 | devc->threshold_voltage = logic_threshold_value[idx]; | |
490 | } | |
491 | devc->threshold_voltage_idx = idx; | |
492 | break; | |
493 | } | |
494 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
495 | devc->threshold_voltage = g_variant_get_double(data); | |
496 | break; | |
497 | default: | |
498 | return SR_ERR_NA; | |
499 | } | |
500 | ||
501 | return SR_OK; | |
502 | } | |
503 | ||
955ab604 GS |
504 | static int config_list(uint32_t key, GVariant **data, |
505 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb | 506 | { |
8b172e78 KG |
507 | struct dev_context *devc; |
508 | ||
f2cd2deb FS |
509 | switch (key) { |
510 | case SR_CONF_SCAN_OPTIONS: | |
511 | case SR_CONF_DEVICE_OPTIONS: | |
512 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
513 | case SR_CONF_SAMPLERATE: | |
fb28e72d MW |
514 | if (!sdi) |
515 | return SR_ERR_ARG; | |
516 | devc = sdi->priv; | |
8b172e78 KG |
517 | if (devc->max_samplerate == SR_MHZ(200)) { |
518 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016)); | |
519 | } | |
520 | else { | |
521 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016)); | |
522 | } | |
f2cd2deb FS |
523 | break; |
524 | case SR_CONF_LIMIT_SAMPLES: | |
525 | *data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN, LA2016_NUM_SAMPLES_MAX); | |
526 | break; | |
527 | case SR_CONF_VOLTAGE_THRESHOLD: | |
528 | *data = std_gvar_min_max_step_thresholds( | |
529 | LA2016_THR_VOLTAGE_MIN, | |
530 | LA2016_THR_VOLTAGE_MAX, 0.1); | |
531 | break; | |
532 | case SR_CONF_TRIGGER_MATCH: | |
533 | *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); | |
534 | break; | |
535 | case SR_CONF_LOGIC_THRESHOLD: | |
536 | *data = g_variant_new_strv(logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES); | |
537 | break; | |
538 | default: | |
539 | return SR_ERR_NA; | |
540 | } | |
541 | ||
542 | return SR_OK; | |
543 | } | |
544 | ||
f2cd2deb FS |
545 | static int configure_channels(const struct sr_dev_inst *sdi) |
546 | { | |
547 | struct dev_context *devc; | |
548 | ||
549 | devc = sdi->priv; | |
550 | devc->cur_channels = 0; | |
551 | devc->num_channels = 0; | |
552 | ||
553 | for (GSList *l = sdi->channels; l; l = l->next) { | |
554 | struct sr_channel *ch = (struct sr_channel*)l->data; | |
555 | if (ch->enabled == FALSE) | |
556 | continue; | |
955ab604 | 557 | devc->cur_channels |= 1 << ch->index; |
f2cd2deb FS |
558 | devc->num_channels++; |
559 | } | |
560 | ||
561 | return SR_OK; | |
562 | } | |
563 | ||
564 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
565 | { | |
566 | struct sr_dev_driver *di; | |
567 | struct drv_context *drvc; | |
568 | struct dev_context *devc; | |
569 | int ret; | |
570 | ||
571 | di = sdi->driver; | |
572 | drvc = di->context; | |
573 | devc = sdi->priv; | |
574 | ||
575 | if (configure_channels(sdi) != SR_OK) { | |
576 | sr_err("Failed to configure channels."); | |
577 | return SR_ERR; | |
578 | } | |
579 | ||
580 | devc->convbuffer_size = 4 * 1024 * 1024; | |
581 | if (!(devc->convbuffer = g_try_malloc(devc->convbuffer_size))) { | |
582 | sr_err("Conversion buffer malloc failed."); | |
583 | return SR_ERR_MALLOC; | |
584 | } | |
585 | ||
586 | if ((ret = la2016_setup_acquisition(sdi)) != SR_OK) { | |
587 | g_free(devc->convbuffer); | |
588 | devc->convbuffer = NULL; | |
589 | return ret; | |
590 | } | |
591 | ||
592 | devc->ctx = drvc->sr_ctx; | |
593 | ||
594 | if ((ret = la2016_start_acquisition(sdi)) != SR_OK) { | |
3ebc1cb2 | 595 | la2016_abort_acquisition(sdi); |
f2cd2deb FS |
596 | return ret; |
597 | } | |
598 | ||
599 | devc->have_trigger = 0; | |
388438e4 GS |
600 | usb_source_add(sdi->session, drvc->sr_ctx, 50, |
601 | la2016_receive_data, (void *)sdi); | |
f2cd2deb FS |
602 | |
603 | std_session_send_df_header(sdi); | |
604 | ||
605 | return SR_OK; | |
606 | } | |
607 | ||
608 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
609 | { | |
610 | int ret; | |
611 | ||
612 | ret = la2016_abort_acquisition(sdi); | |
f2cd2deb FS |
613 | |
614 | return ret; | |
615 | } | |
616 | ||
617 | static struct sr_dev_driver kingst_la2016_driver_info = { | |
618 | .name = "kingst-la2016", | |
619 | .longname = "Kingst LA2016", | |
620 | .api_version = 1, | |
621 | .init = std_init, | |
622 | .cleanup = std_cleanup, | |
623 | .scan = scan, | |
624 | .dev_list = std_dev_list, | |
625 | .dev_clear = std_dev_clear, | |
626 | .config_get = config_get, | |
627 | .config_set = config_set, | |
628 | .config_list = config_list, | |
629 | .dev_open = dev_open, | |
630 | .dev_close = dev_close, | |
631 | .dev_acquisition_start = dev_acquisition_start, | |
632 | .dev_acquisition_stop = dev_acquisition_stop, | |
633 | .context = NULL, | |
634 | }; | |
635 | SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info); |