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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> | |
26 | #include <glib.h> | |
27 | #include <libusb.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | #include <math.h> | |
31 | #include <libsigrok/libsigrok.h> | |
32 | #include "libsigrok-internal.h" | |
33 | #include "protocol.h" | |
34 | ||
35 | static const uint32_t scanopts[] = { | |
36 | SR_CONF_CONN, | |
37 | }; | |
38 | ||
39 | static const uint32_t drvopts[] = { | |
40 | SR_CONF_LOGIC_ANALYZER, | |
41 | }; | |
42 | ||
43 | static const uint32_t devopts[] = { | |
44 | /* TODO: SR_CONF_CONTINUOUS, */ | |
45 | SR_CONF_CONN | SR_CONF_GET, | |
46 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
47 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_GET | SR_CONF_LIST, | |
48 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
49 | SR_CONF_LOGIC_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
50 | SR_CONF_LOGIC_THRESHOLD_CUSTOM | SR_CONF_GET | SR_CONF_SET, | |
51 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
52 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
53 | }; | |
54 | ||
55 | static const int32_t trigger_matches[] = { | |
56 | SR_TRIGGER_ZERO, | |
57 | SR_TRIGGER_ONE, | |
58 | SR_TRIGGER_RISING, | |
59 | SR_TRIGGER_FALLING, | |
60 | }; | |
61 | ||
62 | static const char *channel_names[] = { | |
955ab604 GS |
63 | "0", "1", "2", "3", "4", "5", "6", "7", |
64 | "8", "9", "10", "11", "12", "13", "14", "15", | |
f2cd2deb FS |
65 | }; |
66 | ||
8b172e78 | 67 | static const uint64_t samplerates_la2016[] = { |
f2cd2deb FS |
68 | SR_KHZ(20), |
69 | SR_KHZ(50), | |
70 | SR_KHZ(100), | |
71 | SR_KHZ(200), | |
72 | SR_KHZ(500), | |
73 | SR_MHZ(1), | |
74 | SR_MHZ(2), | |
75 | SR_MHZ(4), | |
76 | SR_MHZ(5), | |
77 | SR_MHZ(8), | |
78 | SR_MHZ(10), | |
79 | SR_MHZ(20), | |
80 | SR_MHZ(50), | |
81 | SR_MHZ(100), | |
82 | SR_MHZ(200), | |
83 | }; | |
84 | ||
8b172e78 KG |
85 | static const uint64_t samplerates_la1016[] = { |
86 | SR_KHZ(20), | |
87 | SR_KHZ(50), | |
88 | SR_KHZ(100), | |
89 | SR_KHZ(200), | |
90 | SR_KHZ(500), | |
91 | SR_MHZ(1), | |
92 | SR_MHZ(2), | |
93 | SR_MHZ(4), | |
94 | SR_MHZ(5), | |
95 | SR_MHZ(8), | |
96 | SR_MHZ(10), | |
97 | SR_MHZ(20), | |
98 | SR_MHZ(50), | |
99 | SR_MHZ(100), | |
100 | }; | |
101 | ||
f2cd2deb FS |
102 | static const float logic_threshold_value[] = { |
103 | 1.58, | |
104 | 2.5, | |
105 | 1.165, | |
106 | 1.5, | |
107 | 1.25, | |
108 | 0.9, | |
109 | 0.75, | |
110 | 0.60, | |
111 | 0.45, | |
112 | }; | |
113 | ||
114 | static const char *logic_threshold[] = { | |
115 | "TTL 5V", | |
116 | "CMOS 5V", | |
117 | "CMOS 3.3V", | |
118 | "CMOS 3.0V", | |
119 | "CMOS 2.5V", | |
120 | "CMOS 1.8V", | |
121 | "CMOS 1.5V", | |
122 | "CMOS 1.2V", | |
123 | "CMOS 0.9V", | |
124 | "USER", | |
125 | }; | |
126 | ||
127 | #define MAX_NUM_LOGIC_THRESHOLD_ENTRIES ARRAY_SIZE(logic_threshold) | |
128 | ||
f2cd2deb FS |
129 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
130 | { | |
131 | struct drv_context *drvc; | |
132 | struct dev_context *devc; | |
133 | struct sr_dev_inst *sdi; | |
134 | struct sr_usb_dev_inst *usb; | |
135 | struct sr_config *src; | |
136 | GSList *l; | |
137 | GSList *devices; | |
138 | GSList *conn_devices; | |
139 | struct libusb_device_descriptor des; | |
140 | libusb_device **devlist; | |
141 | unsigned int i, j; | |
142 | const char *conn; | |
143 | char connection_id[64]; | |
144 | int64_t fw_updated; | |
145 | unsigned int dev_addr; | |
146 | ||
147 | drvc = di->context; | |
148 | ||
149 | conn = NULL; | |
150 | for (l = options; l; l = l->next) { | |
151 | src = l->data; | |
152 | switch (src->key) { | |
153 | case SR_CONF_CONN: | |
154 | conn = g_variant_get_string(src->data, NULL); | |
155 | break; | |
156 | } | |
157 | } | |
158 | if (conn) | |
159 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
160 | else | |
161 | conn_devices = NULL; | |
162 | ||
163 | /* Find all LA2016 devices and upload firmware to them. */ | |
164 | devices = NULL; | |
165 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
166 | for (i = 0; devlist[i]; i++) { | |
167 | if (conn) { | |
168 | usb = NULL; | |
169 | for (l = conn_devices; l; l = l->next) { | |
170 | usb = l->data; | |
955ab604 GS |
171 | if (usb->bus == libusb_get_bus_number(devlist[i]) && |
172 | usb->address == libusb_get_device_address(devlist[i])) | |
f2cd2deb FS |
173 | break; |
174 | } | |
955ab604 | 175 | if (!l) { |
f2cd2deb FS |
176 | /* This device matched none of the ones that |
177 | * matched the conn specification. */ | |
178 | continue; | |
955ab604 | 179 | } |
f2cd2deb FS |
180 | } |
181 | ||
182 | libusb_get_device_descriptor(devlist[i], &des); | |
183 | ||
184 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
185 | continue; | |
186 | ||
187 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID) | |
188 | continue; | |
189 | ||
190 | /* Already has the firmware */ | |
191 | sr_dbg("Found a LA2016 device."); | |
192 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
193 | sdi->status = SR_ST_INITIALIZING; | |
194 | sdi->connection_id = g_strdup(connection_id); | |
195 | ||
196 | fw_updated = 0; | |
197 | dev_addr = libusb_get_device_address(devlist[i]); | |
198 | if (des.iProduct != 2) { | |
199 | sr_info("device at '%s' has no firmware loaded!", connection_id); | |
200 | ||
201 | if (la2016_upload_firmware(drvc->sr_ctx, devlist[i], des.idProduct) != SR_OK) { | |
202 | sr_err("uC firmware upload failed!"); | |
203 | g_free(sdi->connection_id); | |
204 | g_free(sdi); | |
205 | continue; | |
206 | } | |
207 | fw_updated = g_get_monotonic_time(); | |
208 | dev_addr = 0xff; /* to mark that we don't know address yet... ugly */ | |
209 | } | |
210 | ||
211 | sdi->vendor = g_strdup("Kingst"); | |
212 | sdi->model = g_strdup("LA2016"); | |
213 | ||
214 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) | |
215 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, channel_names[j]); | |
216 | ||
217 | devices = g_slist_append(devices, sdi); | |
218 | ||
219 | devc = g_malloc0(sizeof(struct dev_context)); | |
220 | sdi->priv = devc; | |
221 | devc->fw_updated = fw_updated; | |
222 | devc->threshold_voltage_idx = 0; | |
223 | devc->threshold_voltage = logic_threshold_value[devc->threshold_voltage_idx]; | |
224 | ||
225 | sdi->status = SR_ST_INACTIVE; | |
226 | sdi->inst_type = SR_INST_USB; | |
227 | ||
228 | sdi->conn = sr_usb_dev_inst_new( | |
229 | libusb_get_bus_number(devlist[i]), | |
230 | dev_addr, NULL); | |
231 | } | |
232 | libusb_free_device_list(devlist, 1); | |
233 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
234 | ||
235 | return std_scan_complete(di, devices); | |
236 | } | |
237 | ||
238 | static int la2016_dev_open(struct sr_dev_inst *sdi) | |
239 | { | |
240 | struct sr_dev_driver *di; | |
241 | libusb_device **devlist; | |
242 | struct sr_usb_dev_inst *usb; | |
243 | struct libusb_device_descriptor des; | |
244 | struct drv_context *drvc; | |
245 | int ret, i, device_count; | |
246 | char connection_id[64]; | |
247 | ||
248 | di = sdi->driver; | |
249 | drvc = di->context; | |
250 | usb = sdi->conn; | |
251 | ret = SR_ERR; | |
252 | ||
253 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
254 | if (device_count < 0) { | |
255 | sr_err("Failed to get device list: %s.", libusb_error_name(device_count)); | |
256 | return SR_ERR; | |
257 | } | |
258 | ||
259 | for (i = 0; i < device_count; i++) { | |
260 | libusb_get_device_descriptor(devlist[i], &des); | |
261 | ||
262 | if (des.idVendor != LA2016_VID || des.idProduct != LA2016_PID || des.iProduct != 2) | |
263 | continue; | |
264 | ||
265 | if ((sdi->status == SR_ST_INITIALIZING) || (sdi->status == SR_ST_INACTIVE)) { | |
266 | /* | |
267 | * Check device by its physical USB bus/port address. | |
268 | */ | |
269 | if (usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)) < 0) | |
270 | continue; | |
271 | ||
272 | if (strcmp(sdi->connection_id, connection_id)) | |
273 | /* This is not the one. */ | |
274 | continue; | |
275 | } | |
276 | ||
277 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
278 | if (usb->address == 0xff) | |
279 | /* | |
280 | * First time we touch this device after FW | |
281 | * upload, so we don't know the address yet. | |
282 | */ | |
283 | usb->address = libusb_get_device_address(devlist[i]); | |
284 | } else { | |
285 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
286 | ret = SR_ERR; | |
287 | break; | |
288 | } | |
289 | ||
290 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
291 | if (ret == LIBUSB_ERROR_BUSY) { | |
292 | sr_err("Unable to claim USB interface. Another " | |
293 | "program or driver has already claimed it."); | |
294 | ret = SR_ERR; | |
295 | break; | |
296 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
297 | sr_err("Device has been disconnected."); | |
298 | ret = SR_ERR; | |
299 | break; | |
300 | } else if (ret != 0) { | |
301 | sr_err("Unable to claim interface: %s.", libusb_error_name(ret)); | |
302 | ret = SR_ERR; | |
303 | break; | |
304 | } | |
305 | ||
306 | if ((ret = la2016_init_device(sdi)) != SR_OK) { | |
307 | sr_err("Failed to init device."); | |
308 | break; | |
309 | } | |
310 | ||
311 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", | |
312 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
313 | ||
314 | ret = SR_OK; | |
315 | ||
316 | break; | |
317 | } | |
318 | ||
319 | libusb_free_device_list(devlist, 1); | |
320 | ||
321 | if (ret != SR_OK) { | |
322 | if (usb->devhdl) { | |
323 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
324 | libusb_close(usb->devhdl); | |
325 | usb->devhdl = NULL; | |
326 | } | |
327 | return SR_ERR; | |
328 | } | |
329 | ||
330 | return SR_OK; | |
331 | } | |
332 | ||
333 | static int dev_open(struct sr_dev_inst *sdi) | |
334 | { | |
335 | struct dev_context *devc; | |
336 | int64_t timediff_us, timediff_ms; | |
337 | uint64_t reset_done; | |
338 | uint64_t now; | |
339 | int ret; | |
340 | ||
341 | devc = sdi->priv; | |
342 | ||
343 | /* | |
344 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
345 | * milliseconds for the FX2 to renumerate. | |
346 | */ | |
347 | ret = SR_ERR; | |
348 | if (devc->fw_updated > 0) { | |
349 | sr_info("Waiting for device to reset after firmware upload."); | |
350 | /* Takes >= 2000ms for the uC to be gone from the USB bus. */ | |
351 | reset_done = devc->fw_updated + 18 * (uint64_t)1e5; /* 1.8 seconds */ | |
352 | now = g_get_monotonic_time(); | |
353 | if (reset_done > now) | |
354 | g_usleep(reset_done - now); | |
355 | timediff_ms = 0; | |
356 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
357 | g_usleep(200 * 1000); | |
358 | ||
359 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
360 | timediff_ms = timediff_us / 1000; | |
955ab604 | 361 | |
f2cd2deb FS |
362 | if ((ret = la2016_dev_open(sdi)) == SR_OK) |
363 | break; | |
364 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
365 | } | |
366 | if (ret != SR_OK) { | |
367 | sr_err("Device failed to re-enumerate."); | |
368 | return SR_ERR; | |
369 | } | |
370 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
955ab604 | 371 | } else { |
f2cd2deb | 372 | ret = la2016_dev_open(sdi); |
955ab604 | 373 | } |
f2cd2deb FS |
374 | |
375 | if (ret != SR_OK) { | |
376 | sr_err("Unable to open device."); | |
377 | return SR_ERR; | |
378 | } | |
379 | ||
380 | return SR_OK; | |
381 | } | |
382 | ||
383 | static int dev_close(struct sr_dev_inst *sdi) | |
384 | { | |
385 | struct sr_usb_dev_inst *usb; | |
386 | ||
387 | usb = sdi->conn; | |
388 | ||
389 | if (!usb->devhdl) | |
390 | return SR_ERR_BUG; | |
391 | ||
392 | la2016_deinit_device(sdi); | |
393 | ||
394 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", | |
395 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
396 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
397 | libusb_close(usb->devhdl); | |
398 | usb->devhdl = NULL; | |
399 | ||
400 | return SR_OK; | |
401 | } | |
402 | ||
955ab604 GS |
403 | static int config_get(uint32_t key, GVariant **data, |
404 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
405 | { |
406 | struct dev_context *devc; | |
407 | struct sr_usb_dev_inst *usb; | |
408 | double rounded; | |
409 | ||
410 | (void)cg; | |
411 | ||
412 | if (!sdi) | |
413 | return SR_ERR_ARG; | |
414 | devc = sdi->priv; | |
415 | ||
416 | switch (key) { | |
417 | case SR_CONF_CONN: | |
418 | if (!sdi->conn) | |
419 | return SR_ERR_ARG; | |
420 | usb = sdi->conn; | |
955ab604 | 421 | if (usb->address == 255) { |
f2cd2deb FS |
422 | /* Device still needs to re-enumerate after firmware |
423 | * upload, so we don't know its (future) address. */ | |
424 | return SR_ERR; | |
955ab604 | 425 | } |
f2cd2deb FS |
426 | *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); |
427 | break; | |
428 | case SR_CONF_SAMPLERATE: | |
429 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
430 | break; | |
431 | case SR_CONF_LIMIT_SAMPLES: | |
432 | *data = g_variant_new_uint64(devc->limit_samples); | |
433 | break; | |
434 | case SR_CONF_CAPTURE_RATIO: | |
435 | *data = g_variant_new_uint64(devc->capture_ratio); | |
436 | break; | |
437 | case SR_CONF_VOLTAGE_THRESHOLD: | |
438 | rounded = (int)(devc->threshold_voltage / 0.1) * 0.1; | |
439 | *data = std_gvar_tuple_double(rounded, rounded + 0.1); | |
440 | return SR_OK; | |
441 | case SR_CONF_LOGIC_THRESHOLD: | |
442 | *data = g_variant_new_string(logic_threshold[devc->threshold_voltage_idx]); | |
443 | break; | |
444 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
445 | *data = g_variant_new_double(devc->threshold_voltage); | |
446 | break; | |
955ab604 | 447 | |
f2cd2deb FS |
448 | default: |
449 | return SR_ERR_NA; | |
450 | } | |
451 | ||
452 | return SR_OK; | |
453 | } | |
454 | ||
955ab604 GS |
455 | static int config_set(uint32_t key, GVariant *data, |
456 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb FS |
457 | { |
458 | struct dev_context *devc; | |
459 | double low, high; | |
460 | int idx; | |
461 | ||
462 | (void)cg; | |
463 | ||
464 | devc = sdi->priv; | |
465 | ||
466 | switch (key) { | |
467 | case SR_CONF_SAMPLERATE: | |
468 | devc->cur_samplerate = g_variant_get_uint64(data); | |
469 | break; | |
470 | case SR_CONF_LIMIT_SAMPLES: | |
471 | devc->limit_samples = g_variant_get_uint64(data); | |
472 | break; | |
473 | case SR_CONF_CAPTURE_RATIO: | |
474 | devc->capture_ratio = g_variant_get_uint64(data); | |
475 | break; | |
476 | case SR_CONF_VOLTAGE_THRESHOLD: | |
477 | g_variant_get(data, "(dd)", &low, &high); | |
478 | devc->threshold_voltage = (low + high) / 2.0; | |
479 | devc->threshold_voltage_idx = MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1; /* USER */ | |
480 | break; | |
481 | case SR_CONF_LOGIC_THRESHOLD: { | |
482 | if ((idx = std_str_idx(data, logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES)) < 0) | |
483 | return SR_ERR_ARG; | |
484 | if (idx == MAX_NUM_LOGIC_THRESHOLD_ENTRIES - 1) { | |
485 | /* user threshold */ | |
486 | } else { | |
487 | devc->threshold_voltage = logic_threshold_value[idx]; | |
488 | } | |
489 | devc->threshold_voltage_idx = idx; | |
490 | break; | |
491 | } | |
492 | case SR_CONF_LOGIC_THRESHOLD_CUSTOM: | |
493 | devc->threshold_voltage = g_variant_get_double(data); | |
494 | break; | |
495 | default: | |
496 | return SR_ERR_NA; | |
497 | } | |
498 | ||
499 | return SR_OK; | |
500 | } | |
501 | ||
955ab604 GS |
502 | static int config_list(uint32_t key, GVariant **data, |
503 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
f2cd2deb | 504 | { |
8b172e78 KG |
505 | struct dev_context *devc; |
506 | ||
f2cd2deb FS |
507 | switch (key) { |
508 | case SR_CONF_SCAN_OPTIONS: | |
509 | case SR_CONF_DEVICE_OPTIONS: | |
510 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); | |
511 | case SR_CONF_SAMPLERATE: | |
fb28e72d MW |
512 | if (!sdi) |
513 | return SR_ERR_ARG; | |
514 | devc = sdi->priv; | |
8b172e78 KG |
515 | if (devc->max_samplerate == SR_MHZ(200)) { |
516 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la2016)); | |
517 | } | |
518 | else { | |
519 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates_la1016)); | |
520 | } | |
f2cd2deb FS |
521 | break; |
522 | case SR_CONF_LIMIT_SAMPLES: | |
523 | *data = std_gvar_tuple_u64(LA2016_NUM_SAMPLES_MIN, LA2016_NUM_SAMPLES_MAX); | |
524 | break; | |
525 | case SR_CONF_VOLTAGE_THRESHOLD: | |
526 | *data = std_gvar_min_max_step_thresholds( | |
527 | LA2016_THR_VOLTAGE_MIN, | |
528 | LA2016_THR_VOLTAGE_MAX, 0.1); | |
529 | break; | |
530 | case SR_CONF_TRIGGER_MATCH: | |
531 | *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); | |
532 | break; | |
533 | case SR_CONF_LOGIC_THRESHOLD: | |
534 | *data = g_variant_new_strv(logic_threshold, MAX_NUM_LOGIC_THRESHOLD_ENTRIES); | |
535 | break; | |
536 | default: | |
537 | return SR_ERR_NA; | |
538 | } | |
539 | ||
540 | return SR_OK; | |
541 | } | |
542 | ||
955ab604 GS |
543 | static void send_chunk(struct sr_dev_inst *sdi, |
544 | const uint8_t *packets, unsigned int num_tfers) | |
f2cd2deb FS |
545 | { |
546 | struct dev_context *devc; | |
547 | struct sr_datafeed_logic logic; | |
548 | struct sr_datafeed_packet sr_packet; | |
c3d40037 | 549 | unsigned int max_samples, n_samples, total_samples, free_n_samples; |
f2cd2deb FS |
550 | unsigned int i, j, k; |
551 | int do_signal_trigger; | |
552 | uint16_t *wp; | |
c3d40037 HK |
553 | const uint8_t *rp; |
554 | uint16_t state; | |
555 | uint8_t repetitions; | |
f2cd2deb FS |
556 | |
557 | devc = sdi->priv; | |
558 | ||
559 | logic.unitsize = 2; | |
560 | logic.data = devc->convbuffer; | |
561 | ||
562 | sr_packet.type = SR_DF_LOGIC; | |
563 | sr_packet.payload = &logic; | |
564 | ||
565 | max_samples = devc->convbuffer_size / 2; | |
566 | n_samples = 0; | |
955ab604 | 567 | wp = (uint16_t *)devc->convbuffer; |
f2cd2deb FS |
568 | total_samples = 0; |
569 | do_signal_trigger = 0; | |
570 | ||
571 | if (devc->had_triggers_configured && devc->reading_behind_trigger == 0 && devc->info.n_rep_packets_before_trigger == 0) { | |
d9a74e97 | 572 | std_session_send_df_trigger(sdi); |
f2cd2deb | 573 | devc->reading_behind_trigger = 1; |
f2cd2deb FS |
574 | } |
575 | ||
c3d40037 | 576 | rp = packets; |
f2cd2deb | 577 | for (i = 0; i < num_tfers; i++) { |
c3d40037 | 578 | for (k = 0; k < NUM_PACKETS_IN_CHUNK; k++) { |
f2cd2deb FS |
579 | free_n_samples = max_samples - n_samples; |
580 | if (free_n_samples < 256 || do_signal_trigger) { | |
581 | logic.length = n_samples * 2; | |
582 | sr_session_send(sdi, &sr_packet); | |
583 | n_samples = 0; | |
955ab604 | 584 | wp = (uint16_t *)devc->convbuffer; |
f2cd2deb | 585 | if (do_signal_trigger) { |
d9a74e97 | 586 | std_session_send_df_trigger(sdi); |
f2cd2deb | 587 | do_signal_trigger = 0; |
f2cd2deb FS |
588 | } |
589 | } | |
c3d40037 HK |
590 | |
591 | state = read_u16le_inc(&rp); | |
592 | repetitions = read_u8_inc(&rp); | |
593 | for (j = 0; j < repetitions; j++) | |
955ab604 | 594 | *wp++ = state; |
c3d40037 HK |
595 | |
596 | n_samples += repetitions; | |
597 | total_samples += repetitions; | |
598 | devc->total_samples += repetitions; | |
f2cd2deb | 599 | if (!devc->reading_behind_trigger) { |
955ab604 | 600 | devc->n_reps_until_trigger--; |
f2cd2deb FS |
601 | if (devc->n_reps_until_trigger == 0) { |
602 | devc->reading_behind_trigger = 1; | |
603 | do_signal_trigger = 1; | |
604 | sr_dbg(" here is trigger position after %" PRIu64 " samples, %.6fms", | |
605 | devc->total_samples, | |
606 | (double)devc->total_samples / devc->cur_samplerate * 1e3); | |
607 | } | |
608 | } | |
609 | } | |
c3d40037 | 610 | (void)read_u8_inc(&rp); /* Skip sequence number. */ |
f2cd2deb FS |
611 | } |
612 | if (n_samples) { | |
613 | logic.length = n_samples * 2; | |
614 | sr_session_send(sdi, &sr_packet); | |
615 | if (do_signal_trigger) { | |
d9a74e97 | 616 | std_session_send_df_trigger(sdi); |
f2cd2deb FS |
617 | } |
618 | } | |
619 | sr_dbg("send_chunk done after %d samples", total_samples); | |
620 | } | |
621 | ||
622 | static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer) | |
623 | { | |
624 | struct sr_dev_inst *sdi; | |
625 | struct dev_context *devc; | |
626 | struct sr_usb_dev_inst *usb; | |
627 | int ret; | |
628 | ||
629 | sdi = transfer->user_data; | |
630 | devc = sdi->priv; | |
631 | usb = sdi->conn; | |
632 | ||
633 | sr_dbg("receive_transfer(): status %s received %d bytes.", | |
634 | libusb_error_name(transfer->status), transfer->actual_length); | |
635 | ||
636 | if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT) { | |
637 | sr_err("bulk transfer timeout!"); | |
638 | devc->transfer_finished = 1; | |
639 | } | |
c3d40037 | 640 | send_chunk(sdi, transfer->buffer, transfer->actual_length / TRANSFER_PACKET_LENGTH); |
f2cd2deb FS |
641 | |
642 | devc->n_bytes_to_read -= transfer->actual_length; | |
643 | if (devc->n_bytes_to_read) { | |
644 | uint32_t to_read = devc->n_bytes_to_read; | |
e847645b KG |
645 | /* determine read size for the next usb transfer */ |
646 | if (to_read >= LA2016_USB_BUFSZ) | |
647 | to_read = LA2016_USB_BUFSZ; | |
648 | else /* last transfer, make read size some multiple of LA2016_EP6_PKTSZ */ | |
649 | to_read = (to_read + (LA2016_EP6_PKTSZ-1)) & ~(LA2016_EP6_PKTSZ-1); | |
f2cd2deb FS |
650 | libusb_fill_bulk_transfer( |
651 | transfer, usb->devhdl, | |
652 | 0x86, transfer->buffer, to_read, | |
955ab604 | 653 | receive_transfer, (void *)sdi, DEFAULT_TIMEOUT_MS); |
f2cd2deb FS |
654 | |
655 | if ((ret = libusb_submit_transfer(transfer)) == 0) | |
656 | return; | |
657 | sr_err("Failed to submit further transfer: %s.", libusb_error_name(ret)); | |
658 | } | |
659 | ||
660 | g_free(transfer->buffer); | |
661 | libusb_free_transfer(transfer); | |
662 | devc->transfer_finished = 1; | |
663 | } | |
664 | ||
665 | static int handle_event(int fd, int revents, void *cb_data) | |
666 | { | |
667 | const struct sr_dev_inst *sdi; | |
668 | struct dev_context *devc; | |
669 | struct drv_context *drvc; | |
f2cd2deb FS |
670 | struct timeval tv; |
671 | ||
672 | (void)fd; | |
673 | (void)revents; | |
674 | ||
675 | sdi = cb_data; | |
676 | devc = sdi->priv; | |
677 | drvc = sdi->driver->context; | |
678 | ||
679 | if (devc->have_trigger == 0) { | |
680 | if (la2016_has_triggered(sdi) == 0) { | |
84fe94bd | 681 | /* not yet ready for download */ |
f2cd2deb FS |
682 | return TRUE; |
683 | } | |
684 | devc->have_trigger = 1; | |
685 | devc->transfer_finished = 0; | |
686 | devc->reading_behind_trigger = 0; | |
687 | devc->total_samples = 0; | |
688 | /* we can start retrieving data! */ | |
689 | if (la2016_start_retrieval(sdi, receive_transfer) != SR_OK) { | |
690 | sr_err("failed to start retrieval!"); | |
691 | return FALSE; | |
692 | } | |
693 | sr_dbg("retrieval is started..."); | |
d9a74e97 | 694 | std_session_send_df_frame_begin(sdi); |
f2cd2deb FS |
695 | |
696 | return TRUE; | |
697 | } | |
698 | ||
699 | tv.tv_sec = tv.tv_usec = 0; | |
700 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
701 | ||
702 | if (devc->transfer_finished) { | |
703 | sr_dbg("transfer is finished!"); | |
d9a74e97 | 704 | std_session_send_df_frame_end(sdi); |
f2cd2deb FS |
705 | |
706 | usb_source_remove(sdi->session, drvc->sr_ctx); | |
707 | std_session_send_df_end(sdi); | |
708 | ||
709 | la2016_stop_acquisition(sdi); | |
710 | ||
711 | g_free(devc->convbuffer); | |
712 | devc->convbuffer = NULL; | |
713 | ||
2622b429 KG |
714 | devc->transfer = NULL; |
715 | ||
f2cd2deb FS |
716 | sr_dbg("transfer is now finished"); |
717 | } | |
718 | ||
719 | return TRUE; | |
720 | } | |
721 | ||
722 | static void abort_acquisition(struct dev_context *devc) | |
723 | { | |
724 | if (devc->transfer) | |
725 | libusb_cancel_transfer(devc->transfer); | |
726 | } | |
727 | ||
728 | static int configure_channels(const struct sr_dev_inst *sdi) | |
729 | { | |
730 | struct dev_context *devc; | |
731 | ||
732 | devc = sdi->priv; | |
733 | devc->cur_channels = 0; | |
734 | devc->num_channels = 0; | |
735 | ||
736 | for (GSList *l = sdi->channels; l; l = l->next) { | |
737 | struct sr_channel *ch = (struct sr_channel*)l->data; | |
738 | if (ch->enabled == FALSE) | |
739 | continue; | |
955ab604 | 740 | devc->cur_channels |= 1 << ch->index; |
f2cd2deb FS |
741 | devc->num_channels++; |
742 | } | |
743 | ||
744 | return SR_OK; | |
745 | } | |
746 | ||
747 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
748 | { | |
749 | struct sr_dev_driver *di; | |
750 | struct drv_context *drvc; | |
751 | struct dev_context *devc; | |
752 | int ret; | |
753 | ||
754 | di = sdi->driver; | |
755 | drvc = di->context; | |
756 | devc = sdi->priv; | |
757 | ||
758 | if (configure_channels(sdi) != SR_OK) { | |
759 | sr_err("Failed to configure channels."); | |
760 | return SR_ERR; | |
761 | } | |
762 | ||
763 | devc->convbuffer_size = 4 * 1024 * 1024; | |
764 | if (!(devc->convbuffer = g_try_malloc(devc->convbuffer_size))) { | |
765 | sr_err("Conversion buffer malloc failed."); | |
766 | return SR_ERR_MALLOC; | |
767 | } | |
768 | ||
769 | if ((ret = la2016_setup_acquisition(sdi)) != SR_OK) { | |
770 | g_free(devc->convbuffer); | |
771 | devc->convbuffer = NULL; | |
772 | return ret; | |
773 | } | |
774 | ||
775 | devc->ctx = drvc->sr_ctx; | |
776 | ||
777 | if ((ret = la2016_start_acquisition(sdi)) != SR_OK) { | |
778 | abort_acquisition(devc); | |
779 | return ret; | |
780 | } | |
781 | ||
782 | devc->have_trigger = 0; | |
955ab604 | 783 | usb_source_add(sdi->session, drvc->sr_ctx, 50, handle_event, (void *)sdi); |
f2cd2deb FS |
784 | |
785 | std_session_send_df_header(sdi); | |
786 | ||
787 | return SR_OK; | |
788 | } | |
789 | ||
790 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
791 | { | |
792 | int ret; | |
793 | ||
794 | ret = la2016_abort_acquisition(sdi); | |
795 | abort_acquisition(sdi->priv); | |
796 | ||
797 | return ret; | |
798 | } | |
799 | ||
800 | static struct sr_dev_driver kingst_la2016_driver_info = { | |
801 | .name = "kingst-la2016", | |
802 | .longname = "Kingst LA2016", | |
803 | .api_version = 1, | |
804 | .init = std_init, | |
805 | .cleanup = std_cleanup, | |
806 | .scan = scan, | |
807 | .dev_list = std_dev_list, | |
808 | .dev_clear = std_dev_clear, | |
809 | .config_get = config_get, | |
810 | .config_set = config_set, | |
811 | .config_list = config_list, | |
812 | .dev_open = dev_open, | |
813 | .dev_close = dev_close, | |
814 | .dev_acquisition_start = dev_acquisition_start, | |
815 | .dev_acquisition_stop = dev_acquisition_stop, | |
816 | .context = NULL, | |
817 | }; | |
818 | SR_REGISTER_DEV_DRIVER(kingst_la2016_driver_info); |