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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 | ||
96dc954e GS |
23 | /* |
24 | * This driver implementation initially was derived from the | |
25 | * src/hardware/saleae-logic16/ source code. | |
26 | */ | |
f2cd2deb FS |
27 | |
28 | #include <config.h> | |
a7740b06 | 29 | |
a7740b06 | 30 | #include <libsigrok/libsigrok.h> |
f2cd2deb | 31 | #include <string.h> |
a7740b06 | 32 | |
f2cd2deb FS |
33 | #include "libsigrok-internal.h" |
34 | #include "protocol.h" | |
35 | ||
36 | static const uint32_t scanopts[] = { | |
37 | SR_CONF_CONN, | |
38 | }; | |
39 | ||
40 | static const uint32_t drvopts[] = { | |
41 | SR_CONF_LOGIC_ANALYZER, | |
42 | }; | |
43 | ||
44 | static const uint32_t devopts[] = { | |
45 | /* TODO: SR_CONF_CONTINUOUS, */ | |
46 | SR_CONF_CONN | SR_CONF_GET, | |
47 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
48 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET | SR_CONF_LIST, | |
49 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
50 | SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
51 | SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET, | |
52 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
53 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
54 | }; | |
55 | ||
56 | static const int32_t trigger_matches[] = { | |
57 | SR_TRIGGER_ZERO, | |
58 | SR_TRIGGER_ONE, | |
59 | SR_TRIGGER_RISING, | |
60 | SR_TRIGGER_FALLING, | |
61 | }; | |
62 | ||
63 | static const char *channel_names[] = { | |
955ab604 GS |
64 | "0", "1", "2", "3", "4", "5", "6", "7", |
65 | "8", "9", "10", "11", "12", "13", "14", "15", | |
f2cd2deb FS |
66 | }; |
67 | ||
8b172e78 | 68 | static const uint64_t samplerates_la2016[] = { |
f2cd2deb FS |
69 | SR_KHZ(20), |
70 | SR_KHZ(50), | |
71 | SR_KHZ(100), | |
72 | SR_KHZ(200), | |
73 | SR_KHZ(500), | |
74 | SR_MHZ(1), | |
75 | SR_MHZ(2), | |
76 | SR_MHZ(4), | |
77 | SR_MHZ(5), | |
78 | SR_MHZ(8), | |
79 | SR_MHZ(10), | |
80 | SR_MHZ(20), | |
81 | SR_MHZ(50), | |
82 | SR_MHZ(100), | |
83 | SR_MHZ(200), | |
84 | }; | |
85 | ||
8b172e78 KG |
86 | static const uint64_t samplerates_la1016[] = { |
87 | SR_KHZ(20), | |
88 | SR_KHZ(50), | |
89 | SR_KHZ(100), | |
90 | SR_KHZ(200), | |
91 | SR_KHZ(500), | |
92 | SR_MHZ(1), | |
93 | SR_MHZ(2), | |
94 | SR_MHZ(4), | |
95 | SR_MHZ(5), | |
96 | SR_MHZ(8), | |
97 | SR_MHZ(10), | |
98 | SR_MHZ(20), | |
99 | SR_MHZ(50), | |
100 | SR_MHZ(100), | |
101 | }; | |
102 | ||
f2cd2deb FS |
103 | static const float logic_threshold_value[] = { |
104 | 1.58, | |
105 | 2.5, | |
106 | 1.165, | |
107 | 1.5, | |
108 | 1.25, | |
109 | 0.9, | |
110 | 0.75, | |
111 | 0.60, | |
112 | 0.45, | |
113 | }; | |
114 | ||
115 | static const char *logic_threshold[] = { | |
116 | "TTL 5V", | |
117 | "CMOS 5V", | |
118 | "CMOS 3.3V", | |
119 | "CMOS 3.0V", | |
120 | "CMOS 2.5V", | |
121 | "CMOS 1.8V", | |
122 | "CMOS 1.5V", | |
123 | "CMOS 1.2V", | |
124 | "CMOS 0.9V", | |
125 | "USER", | |
126 | }; | |
127 | ||
128 | #define MAX_NUM_LOGIC_THRESHOLD_ENTRIES ARRAY_SIZE(logic_threshold) | |
129 | ||
f2cd2deb FS |
130 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
131 | { | |
132 | struct drv_context *drvc; | |
133 | struct dev_context *devc; | |
134 | struct sr_dev_inst *sdi; | |
135 | struct sr_usb_dev_inst *usb; | |
136 | struct sr_config *src; | |
137 | GSList *l; | |
138 | GSList *devices; | |
139 | GSList *conn_devices; | |
140 | struct libusb_device_descriptor des; | |
141 | libusb_device **devlist; | |
142 | unsigned int i, j; | |
143 | const char *conn; | |
144 | char connection_id[64]; | |
22cb067a | 145 | uint64_t fw_uploaded; |
f2cd2deb FS |
146 | unsigned int dev_addr; |
147 | ||
148 | drvc = di->context; | |
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 | ||
96dc954e | 164 | /* Find all LA2016 devices, optionally upload firmware to them. */ |
f2cd2deb FS |
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; | |
955ab604 GS |
172 | if (usb->bus == libusb_get_bus_number(devlist[i]) && |
173 | usb->address == libusb_get_device_address(devlist[i])) | |
f2cd2deb FS |
174 | break; |
175 | } | |
955ab604 | 176 | if (!l) { |
96dc954e GS |
177 | /* |
178 | * A connection parameter was specified and | |
179 | * this device does not match the filter. | |
180 | */ | |
f2cd2deb | 181 | continue; |
955ab604 | 182 | } |
f2cd2deb FS |
183 | } |
184 | ||
185 | libusb_get_device_descriptor(devlist[i], &des); | |
186 | ||
187 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
188 | continue; | |
189 | ||
190 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID) | |
191 | continue; | |
192 | ||
96dc954e | 193 | /* USB identification matches, a device was found. */ |
f2cd2deb FS |
194 | sr_dbg("Found a LA2016 device."); |
195 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
196 | sdi->status = SR_ST_INITIALIZING; | |
197 | sdi->connection_id = g_strdup(connection_id); | |
198 | ||
22cb067a | 199 | fw_uploaded = 0; |
f2cd2deb FS |
200 | dev_addr = libusb_get_device_address(devlist[i]); |
201 | if (des.iProduct != 2) { | |
91f73872 | 202 | sr_info("Device at '%s' has no firmware loaded.", connection_id); |
f2cd2deb FS |
203 | |
204 | if (la2016_upload_firmware(drvc->sr_ctx, devlist[i], des.idProduct) != SR_OK) { | |
91f73872 | 205 | sr_err("MCU firmware upload failed."); |
f2cd2deb FS |
206 | g_free(sdi->connection_id); |
207 | g_free(sdi); | |
208 | continue; | |
209 | } | |
22cb067a | 210 | fw_uploaded = g_get_monotonic_time(); |
96dc954e GS |
211 | /* Will re-enumerate. Mark as "unknown address yet". */ |
212 | dev_addr = 0xff; | |
f2cd2deb FS |
213 | } |
214 | ||
215 | sdi->vendor = g_strdup("Kingst"); | |
216 | sdi->model = g_strdup("LA2016"); | |
217 | ||
218 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) | |
219 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, channel_names[j]); | |
220 | ||
221 | devices = g_slist_append(devices, sdi); | |
222 | ||
223 | devc = g_malloc0(sizeof(struct dev_context)); | |
224 | sdi->priv = devc; | |
22cb067a | 225 | devc->fw_uploaded = fw_uploaded; |
f2cd2deb FS |
226 | devc->threshold_voltage_idx = 0; |
227 | devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx]; | |
228 | ||
229 | sdi->status = SR_ST_INACTIVE; | |
230 | sdi->inst_type = SR_INST_USB; | |
231 | ||
232 | sdi->conn = sr_usb_dev_inst_new( | |
233 | libusb_get_bus_number(devlist[i]), | |
234 | dev_addr, NULL); | |
235 | } | |
236 | libusb_free_device_list(devlist, 1); | |
237 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
238 | ||
239 | return std_scan_complete(di, devices); | |
240 | } | |
241 | ||
242 | static int la2016_dev_open(struct sr_dev_inst *sdi) | |
243 | { | |
244 | struct sr_dev_driver *di; | |
245 | libusb_device **devlist; | |
246 | struct sr_usb_dev_inst *usb; | |
247 | struct libusb_device_descriptor des; | |
248 | struct drv_context *drvc; | |
249 | int ret, i, device_count; | |
250 | char connection_id[64]; | |
251 | ||
252 | di = sdi->driver; | |
253 | drvc = di->context; | |
254 | usb = sdi->conn; | |
255 | ret = SR_ERR; | |
256 | ||
257 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
258 | if (device_count < 0) { | |
259 | sr_err("Failed to get device list: %s.", libusb_error_name(device_count)); | |
260 | return SR_ERR; | |
261 | } | |
262 | ||
263 | for (i = 0; i < device_count; i++) { | |
264 | libusb_get_device_descriptor(devlist[i], &des); | |
265 | ||
266 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID || des.iProduct != 2) | |
267 | continue; | |
268 | ||
269 | if ((sdi->status == SR_ST_INITIALIZING) || (sdi->status == SR_ST_INACTIVE)) { | |
96dc954e | 270 | /* Check physical USB bus/port address. */ |
f2cd2deb FS |
271 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) |
272 | continue; | |
273 | ||
96dc954e GS |
274 | if (strcmp(sdi->connection_id, connection_id)) { |
275 | /* Not the device we looked up before. */ | |
f2cd2deb | 276 | continue; |
96dc954e | 277 | } |
f2cd2deb FS |
278 | } |
279 | ||
280 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
96dc954e | 281 | if (usb->address == 0xff) { |
f2cd2deb | 282 | /* |
96dc954e GS |
283 | * First encounter after firmware upload. |
284 | * Grab current address after enumeration. | |
f2cd2deb FS |
285 | */ |
286 | usb->address = libusb_get_device_address(devlist[i]); | |
96dc954e | 287 | } |
f2cd2deb FS |
288 | } else { |
289 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
290 | ret = SR_ERR; | |
291 | break; | |
292 | } | |
293 | ||
294 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
295 | if (ret == LIBUSB_ERROR_BUSY) { | |
91f73872 | 296 | sr_err("Cannot claim USB interface. Another program or driver using it?"); |
f2cd2deb FS |
297 | ret = SR_ERR; |
298 | break; | |
299 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
300 | sr_err("Device has been disconnected."); | |
301 | ret = SR_ERR; | |
302 | break; | |
303 | } else if (ret != 0) { | |
91f73872 | 304 | sr_err("Cannot claim USB interface: %s.", libusb_error_name(ret)); |
f2cd2deb FS |
305 | ret = SR_ERR; |
306 | break; | |
307 | } | |
308 | ||
309 | if ((ret = la2016_init_device(sdi)) != SR_OK) { | |
91f73872 | 310 | sr_err("Cannot initialize device."); |
f2cd2deb FS |
311 | break; |
312 | } | |
313 | ||
314 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", | |
315 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
316 | ||
317 | ret = SR_OK; | |
318 | ||
319 | break; | |
320 | } | |
321 | ||
322 | libusb_free_device_list(devlist, 1); | |
323 | ||
324 | if (ret != SR_OK) { | |
325 | if (usb->devhdl) { | |
326 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
327 | libusb_close(usb->devhdl); | |
328 | usb->devhdl = NULL; | |
329 | } | |
330 | return SR_ERR; | |
331 | } | |
332 | ||
333 | return SR_OK; | |
334 | } | |
335 | ||
336 | static int dev_open(struct sr_dev_inst *sdi) | |
337 | { | |
338 | struct dev_context *devc; | |
22cb067a | 339 | uint64_t reset_done, now, elapsed_ms; |
f2cd2deb FS |
340 | int ret; |
341 | ||
342 | devc = sdi->priv; | |
343 | ||
344 | /* | |
22cb067a GS |
345 | * When the sigrok driver recently has uploaded MCU firmware, |
346 | * then wait for the FX2 to re-enumerate. Allow the USB device | |
347 | * to vanish before it reappears. Timeouts are rough estimates | |
348 | * after all, the imprecise time of the last check (potentially | |
349 | * executes after the total check period) simplifies code paths | |
350 | * with optional diagnostics. And increases the probability of | |
351 | * successfully detecting "late/slow" devices. | |
f2cd2deb | 352 | */ |
22cb067a | 353 | if (devc->fw_uploaded) { |
f2cd2deb | 354 | sr_info("Waiting for device to reset after firmware upload."); |
f2cd2deb | 355 | now = g_get_monotonic_time(); |
22cb067a GS |
356 | reset_done = devc->fw_uploaded + RENUM_GONE_DELAY_MS * 1000; |
357 | if (now < reset_done) | |
f2cd2deb | 358 | g_usleep(reset_done - now); |
22cb067a GS |
359 | do { |
360 | now = g_get_monotonic_time(); | |
361 | elapsed_ms = (now - devc->fw_uploaded) / 1000; | |
362 | sr_spew("Waited %" PRIu64 "ms.", elapsed_ms); | |
363 | ret = la2016_dev_open(sdi); | |
364 | if (ret == SR_OK) { | |
365 | devc->fw_uploaded = 0; | |
f2cd2deb | 366 | break; |
22cb067a GS |
367 | } |
368 | g_usleep(RENUM_POLL_INTERVAL_MS * 1000); | |
369 | } while (elapsed_ms < RENUM_CHECK_PERIOD_MS); | |
f2cd2deb FS |
370 | if (ret != SR_OK) { |
371 | sr_err("Device failed to re-enumerate."); | |
372 | return SR_ERR; | |
373 | } | |
22cb067a | 374 | sr_info("Device came back after %" PRIi64 "ms.", elapsed_ms); |
955ab604 | 375 | } else { |
f2cd2deb | 376 | ret = la2016_dev_open(sdi); |
955ab604 | 377 | } |
f2cd2deb FS |
378 | |
379 | if (ret != SR_OK) { | |
91f73872 | 380 | sr_err("Cannot open device."); |
f2cd2deb FS |
381 | return SR_ERR; |
382 | } | |
383 | ||
384 | return SR_OK; | |
385 | } | |
386 | ||
387 | static int dev_close(struct sr_dev_inst *sdi) | |
388 | { | |
389 | struct sr_usb_dev_inst *usb; | |
390 | ||
391 | usb = sdi->conn; | |
392 | ||
393 | if (!usb->devhdl) | |
394 | return SR_ERR_BUG; | |
395 | ||
396 | la2016_deinit_device(sdi); | |
397 | ||
398 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", | |
399 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
400 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
401 | libusb_close(usb->devhdl); | |
402 | usb->devhdl = NULL; | |
403 | ||
404 | return SR_OK; | |
405 | } | |
406 | ||
955ab604 GS |
407 | static int config_get(uint32_t key, GVariant **data, |
408 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
409 | { |
410 | struct dev_context *devc; | |
411 | struct sr_usb_dev_inst *usb; | |
412 | double rounded; | |
413 | ||
414 | (void)cg; | |
415 | ||
416 | if (!sdi) | |
417 | return SR_ERR_ARG; | |
418 | devc = sdi->priv; | |
419 | ||
420 | switch (key) { | |
421 | case SR_CONF_CONN: | |
422 | if (!sdi->conn) | |
423 | return SR_ERR_ARG; | |
424 | usb = sdi->conn; | |
96dc954e GS |
425 | if (usb->address == 0xff) { |
426 | /* | |
427 | * Device still needs to re-enumerate after firmware | |
428 | * upload, so we don't know its (future) address. | |
429 | */ | |
f2cd2deb | 430 | return SR_ERR; |
955ab604 | 431 | } |
f2cd2deb FS |
432 | *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); |
433 | break; | |
434 | case SR_CONF_SAMPLERATE: | |
435 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
436 | break; | |
437 | case SR_CONF_LIMIT_SAMPLES: | |
438 | *data = g_variant_new_uint64(devc->limit_samples); | |
439 | break; | |
440 | case SR_CONF_CAPTURE_RATIO: | |
441 | *data = g_variant_new_uint64(devc->capture_ratio); | |
442 | break; | |
443 | case SR_CONF_VOLTAGE_THRESHOLD: | |
444 | rounded = (int)(devc->threshold_voltage / 0.1) * 0.1; | |
445 | *data = std_gvar_tuple_double(rounded, rounded + 0.1); | |
446 | return SR_OK; | |
447 | case SR_CONF_LOGIC_THRESHOLD: | |
448 | *data = g_variant_new_string(logic_threshold[devc->threshold_voltage_idx]); | |
449 | break; | |
450 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
451 | *data = g_variant_new_double(devc->threshold_voltage); | |
452 | break; | |
955ab604 | 453 | |
f2cd2deb FS |
454 | default: |
455 | return SR_ERR_NA; | |
456 | } | |
457 | ||
458 | return SR_OK; | |
459 | } | |
460 | ||
955ab604 GS |
461 | static int config_set(uint32_t key, GVariant *data, |
462 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
463 | { |
464 | struct dev_context *devc; | |
465 | double low, high; | |
466 | int idx; | |
467 | ||
468 | (void)cg; | |
469 | ||
470 | devc = sdi->priv; | |
471 | ||
472 | switch (key) { | |
473 | case SR_CONF_SAMPLERATE: | |
474 | devc->cur_samplerate = g_variant_get_uint64(data); | |
475 | break; | |
476 | case SR_CONF_LIMIT_SAMPLES: | |
477 | devc->limit_samples = g_variant_get_uint64(data); | |
478 | break; | |
479 | case SR_CONF_CAPTURE_RATIO: | |
480 | devc->capture_ratio = g_variant_get_uint64(data); | |
481 | break; | |
482 | case SR_CONF_VOLTAGE_THRESHOLD: | |
483 | g_variant_get(data, "(dd)", &low, &high); | |
484 | devc->threshold_voltage = (low + high) / 2.0; | |
485 | devc->threshold_voltage_idx = MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1; /* USER */ | |
486 | break; | |
487 | case SR_CONF_LOGIC_THRESHOLD: { | |
488 | if ((idx = std_str_idx(data, logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES)) < 0) | |
489 | return SR_ERR_ARG; | |
490 | if (idx == MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1) { | |
491 | /* user threshold */ | |
492 | } else { | |
493 | devc->threshold_voltage = logic_threshold_value[idx]; | |
494 | } | |
495 | devc->threshold_voltage_idx = idx; | |
496 | break; | |
497 | } | |
498 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
499 | devc->threshold_voltage = g_variant_get_double(data); | |
500 | break; | |
501 | default: | |
502 | return SR_ERR_NA; | |
503 | } | |
504 | ||
505 | return SR_OK; | |
506 | } | |
507 | ||
955ab604 GS |
508 | static int config_list(uint32_t key, GVariant **data, |
509 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb | 510 | { |
8b172e78 KG |
511 | struct dev_context *devc; |
512 | ||
f2cd2deb FS |
513 | switch (key) { |
514 | case SR_CONF_SCAN_OPTIONS: | |
515 | case SR_CONF_DEVICE_OPTIONS: | |
516 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
517 | case SR_CONF_SAMPLERATE: | |
fb28e72d MW |
518 | if (!sdi) |
519 | return SR_ERR_ARG; | |
520 | devc = sdi->priv; | |
8b172e78 KG |
521 | if (devc->max_samplerate == SR_MHZ(200)) { |
522 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016)); | |
1ed93110 | 523 | } else { |
8b172e78 KG |
524 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016)); |
525 | } | |
f2cd2deb FS |
526 | break; |
527 | case SR_CONF_LIMIT_SAMPLES: | |
528 | *data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN, LA2016_NUM_SAMPLES_MAX); | |
529 | break; | |
530 | case SR_CONF_VOLTAGE_THRESHOLD: | |
531 | *data = std_gvar_min_max_step_thresholds( | |
532 | LA2016_THR_VOLTAGE_MIN, | |
533 | LA2016_THR_VOLTAGE_MAX, 0.1); | |
534 | break; | |
535 | case SR_CONF_TRIGGER_MATCH: | |
536 | *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); | |
537 | break; | |
538 | case SR_CONF_LOGIC_THRESHOLD: | |
539 | *data = g_variant_new_strv(logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES); | |
540 | break; | |
541 | default: | |
542 | return SR_ERR_NA; | |
543 | } | |
544 | ||
545 | return SR_OK; | |
546 | } | |
547 | ||
f2cd2deb FS |
548 | static int configure_channels(const struct sr_dev_inst *sdi) |
549 | { | |
550 | struct dev_context *devc; | |
551 | ||
552 | devc = sdi->priv; | |
553 | devc->cur_channels = 0; | |
554 | devc->num_channels = 0; | |
555 | ||
556 | for (GSList *l = sdi->channels; l; l = l->next) { | |
557 | struct sr_channel *ch = (struct sr_channel*)l->data; | |
558 | if (ch->enabled == FALSE) | |
559 | continue; | |
955ab604 | 560 | devc->cur_channels |= 1 << ch->index; |
f2cd2deb FS |
561 | devc->num_channels++; |
562 | } | |
563 | ||
564 | return SR_OK; | |
565 | } | |
566 | ||
567 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
568 | { | |
569 | struct sr_dev_driver *di; | |
570 | struct drv_context *drvc; | |
571 | struct dev_context *devc; | |
572 | int ret; | |
573 | ||
574 | di = sdi->driver; | |
575 | drvc = di->context; | |
576 | devc = sdi->priv; | |
577 | ||
578 | if (configure_channels(sdi) != SR_OK) { | |
91f73872 | 579 | sr_err("Cannot configure channels."); |
f2cd2deb FS |
580 | return SR_ERR; |
581 | } | |
582 | ||
583 | devc->convbuffer_size = 4 * 1024 * 1024; | |
584 | if (!(devc->convbuffer = g_try_malloc(devc->convbuffer_size))) { | |
91f73872 | 585 | sr_err("Cannot allocate conversion buffer."); |
f2cd2deb FS |
586 | return SR_ERR_MALLOC; |
587 | } | |
588 | ||
589 | if ((ret = la2016_setup_acquisition(sdi)) != SR_OK) { | |
590 | g_free(devc->convbuffer); | |
591 | devc->convbuffer = NULL; | |
592 | return ret; | |
593 | } | |
594 | ||
595 | devc->ctx = drvc->sr_ctx; | |
596 | ||
597 | if ((ret = la2016_start_acquisition(sdi)) != SR_OK) { | |
3ebc1cb2 | 598 | la2016_abort_acquisition(sdi); |
f2cd2deb FS |
599 | return ret; |
600 | } | |
601 | ||
602 | devc->have_trigger = 0; | |
388438e4 GS |
603 | usb_source_add(sdi->session, drvc->sr_ctx, 50, |
604 | la2016_receive_data, (void *)sdi); | |
f2cd2deb FS |
605 | |
606 | std_session_send_df_header(sdi); | |
607 | ||
608 | return SR_OK; | |
609 | } | |
610 | ||
611 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
612 | { | |
613 | int ret; | |
614 | ||
615 | ret = la2016_abort_acquisition(sdi); | |
f2cd2deb FS |
616 | |
617 | return ret; | |
618 | } | |
619 | ||
620 | static struct sr_dev_driver kingst_la2016_driver_info = { | |
621 | .name = "kingst-la2016", | |
622 | .longname = "Kingst LA2016", | |
623 | .api_version = 1, | |
624 | .init = std_init, | |
625 | .cleanup = std_cleanup, | |
626 | .scan = scan, | |
627 | .dev_list = std_dev_list, | |
628 | .dev_clear = std_dev_clear, | |
629 | .config_get = config_get, | |
630 | .config_set = config_set, | |
631 | .config_list = config_list, | |
632 | .dev_open = dev_open, | |
633 | .dev_close = dev_close, | |
634 | .dev_acquisition_start = dev_acquisition_start, | |
635 | .dev_acquisition_stop = dev_acquisition_stop, | |
636 | .context = NULL, | |
637 | }; | |
638 | SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info); |