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dslogic: Implement continuous mode
[libsigrok.git] / src / hardware / fx2lafw / api.c
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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 <config.h>
22#include "protocol.h"
23#include "dslogic.h"
24#include <math.h>
25
26static const struct fx2lafw_profile supported_fx2[] = {
27 /*
28 * CWAV USBee AX
29 * EE Electronics ESLA201A
30 * ARMFLY AX-Pro
31 */
32 { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
33 "fx2lafw-cwav-usbeeax.fw",
34 DEV_CAPS_AX_ANALOG, NULL, NULL},
35 /*
36 * CWAV USBee DX
37 * XZL-Studio DX
38 */
39 { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
40 "fx2lafw-cwav-usbeedx.fw",
41 DEV_CAPS_16BIT, NULL, NULL },
42
43 /*
44 * CWAV USBee SX
45 */
46 { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
47 "fx2lafw-cwav-usbeesx.fw",
48 0, NULL, NULL},
49
50 /* DreamSourceLab DSLogic (before FW upload) */
51 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
52 "dreamsourcelab-dslogic-fx2.fw",
53 DEV_CAPS_16BIT, NULL, NULL},
54 /* DreamSourceLab DSLogic (after FW upload) */
55 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
56 "dreamsourcelab-dslogic-fx2.fw",
57 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
58
59 /* DreamSourceLab DSCope (before FW upload) */
60 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
61 "dreamsourcelab-dscope-fx2.fw",
62 DEV_CAPS_16BIT, NULL, NULL},
63 /* DreamSourceLab DSCope (after FW upload) */
64 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
65 "dreamsourcelab-dscope-fx2.fw",
66 DEV_CAPS_16BIT, "DreamSourceLab", "DSCope"},
67
68 /* DreamSourceLab DSLogic Pro (before FW upload) */
69 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
70 "dreamsourcelab-dslogic-pro-fx2.fw",
71 DEV_CAPS_16BIT, NULL, NULL},
72 /* DreamSourceLab DSLogic Pro (after FW upload) */
73 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
74 "dreamsourcelab-dslogic-pro-fx2.fw",
75 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
76
77 /*
78 * Saleae Logic
79 * EE Electronics ESLA100
80 * Robomotic MiniLogic
81 * Robomotic BugLogic 3
82 */
83 { 0x0925, 0x3881, "Saleae", "Logic", NULL,
84 "fx2lafw-saleae-logic.fw",
85 0, NULL, NULL},
86
87 /*
88 * Default Cypress FX2 without EEPROM, e.g.:
89 * Lcsoft Mini Board
90 * Braintechnology USB Interface V2.x
91 */
92 { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
93 "fx2lafw-cypress-fx2.fw",
94 DEV_CAPS_16BIT, NULL, NULL },
95
96 /*
97 * Braintechnology USB-LPS
98 */
99 { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
100 "fx2lafw-braintechnology-usb-lps.fw",
101 DEV_CAPS_16BIT, NULL, NULL },
102
103 /*
104 * sigrok FX2 based 8-channel logic analyzer
105 */
106 { 0x1d50, 0x608c, "sigrok", "FX2 LA (8ch)", NULL,
107 "fx2lafw-sigrok-fx2-8ch.fw",
108 0, NULL, NULL},
109
110 /*
111 * sigrok FX2 based 16-channel logic analyzer
112 */
113 { 0x1d50, 0x608d, "sigrok", "FX2 LA (16ch)", NULL,
114 "fx2lafw-sigrok-fx2-16ch.fw",
115 DEV_CAPS_16BIT, NULL, NULL },
116
117 ALL_ZERO
118};
119
120static const uint32_t drvopts[] = {
121 SR_CONF_LOGIC_ANALYZER,
122};
123
124static const uint32_t scanopts[] = {
125 SR_CONF_CONN,
126};
127
128static const uint32_t devopts[] = {
129 SR_CONF_CONTINUOUS,
130 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
131 SR_CONF_CONN | SR_CONF_GET,
132 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
133 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
134 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
135};
136
137static const uint32_t dslogic_devopts[] = {
138 SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
139 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
140 SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
141 SR_CONF_CONN | SR_CONF_GET,
142 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
143 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
144 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
145 SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
146};
147
148static const int32_t soft_trigger_matches[] = {
149 SR_TRIGGER_ZERO,
150 SR_TRIGGER_ONE,
151 SR_TRIGGER_RISING,
152 SR_TRIGGER_FALLING,
153 SR_TRIGGER_EDGE,
154};
155
156static const struct {
157 int range;
158 gdouble low;
159 gdouble high;
160} volt_thresholds[] = {
161 { DS_VOLTAGE_RANGE_18_33_V, 0.7, 1.4 },
162 { DS_VOLTAGE_RANGE_5_V, 1.4, 3.6 },
163};
164
165static const uint64_t samplerates[] = {
166 SR_KHZ(20),
167 SR_KHZ(25),
168 SR_KHZ(50),
169 SR_KHZ(100),
170 SR_KHZ(200),
171 SR_KHZ(250),
172 SR_KHZ(500),
173 SR_MHZ(1),
174 SR_MHZ(2),
175 SR_MHZ(3),
176 SR_MHZ(4),
177 SR_MHZ(6),
178 SR_MHZ(8),
179 SR_MHZ(12),
180 SR_MHZ(16),
181 SR_MHZ(24),
182};
183
184static const uint64_t dslogic_samplerates[] = {
185 SR_KHZ(10),
186 SR_KHZ(20),
187 SR_KHZ(50),
188 SR_KHZ(100),
189 SR_KHZ(200),
190 SR_KHZ(500),
191 SR_MHZ(1),
192 SR_MHZ(2),
193 SR_MHZ(5),
194 SR_MHZ(10),
195 SR_MHZ(20),
196 SR_MHZ(25),
197 SR_MHZ(50),
198 SR_MHZ(100),
199 SR_MHZ(200),
200 SR_MHZ(400),
201};
202
203SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
204
205static GSList *scan(struct sr_dev_driver *di, GSList *options)
206{
207 struct drv_context *drvc;
208 struct dev_context *devc;
209 struct sr_dev_inst *sdi;
210 struct sr_usb_dev_inst *usb;
211 struct sr_channel *ch;
212 struct sr_channel_group *cg;
213 struct sr_config *src;
214 const struct fx2lafw_profile *prof;
215 GSList *l, *devices, *conn_devices;
216 gboolean has_firmware;
217 struct libusb_device_descriptor des;
218 libusb_device **devlist;
219 struct libusb_device_handle *hdl;
220 int ret, i, j;
221 int num_logic_channels = 0, num_analog_channels = 0;
222 const char *conn;
223 char manufacturer[64], product[64], serial_num[64], connection_id[64];
224 char channel_name[16];
225
226 drvc = di->context;
227
228 conn = NULL;
229 for (l = options; l; l = l->next) {
230 src = l->data;
231 switch (src->key) {
232 case SR_CONF_CONN:
233 conn = g_variant_get_string(src->data, NULL);
234 break;
235 }
236 }
237 if (conn)
238 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
239 else
240 conn_devices = NULL;
241
242 /* Find all fx2lafw compatible devices and upload firmware to them. */
243 devices = NULL;
244 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
245 for (i = 0; devlist[i]; i++) {
246 if (conn) {
247 usb = NULL;
248 for (l = conn_devices; l; l = l->next) {
249 usb = l->data;
250 if (usb->bus == libusb_get_bus_number(devlist[i])
251 && usb->address == libusb_get_device_address(devlist[i]))
252 break;
253 }
254 if (!l)
255 /* This device matched none of the ones that
256 * matched the conn specification. */
257 continue;
258 }
259
260 libusb_get_device_descriptor( devlist[i], &des);
261
262 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
263 continue;
264
265 if (des.iManufacturer == 0) {
266 manufacturer[0] = '\0';
267 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
268 des.iManufacturer, (unsigned char *) manufacturer,
269 sizeof(manufacturer))) < 0) {
270 sr_warn("Failed to get manufacturer string descriptor: %s.",
271 libusb_error_name(ret));
272 continue;
273 }
274
275 if (des.iProduct == 0) {
276 product[0] = '\0';
277 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
278 des.iProduct, (unsigned char *) product,
279 sizeof(product))) < 0) {
280 sr_warn("Failed to get product string descriptor: %s.",
281 libusb_error_name(ret));
282 continue;
283 }
284
285 if (des.iSerialNumber == 0) {
286 serial_num[0] = '\0';
287 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
288 des.iSerialNumber, (unsigned char *) serial_num,
289 sizeof(serial_num))) < 0) {
290 sr_warn("Failed to get serial number string descriptor: %s.",
291 libusb_error_name(ret));
292 continue;
293 }
294
295 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
296
297 libusb_close(hdl);
298
299 prof = NULL;
300 for (j = 0; supported_fx2[j].vid; j++) {
301 if (des.idVendor == supported_fx2[j].vid &&
302 des.idProduct == supported_fx2[j].pid &&
303 (!supported_fx2[j].usb_manufacturer ||
304 !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
305 (!supported_fx2[j].usb_manufacturer ||
306 !strcmp(product, supported_fx2[j].usb_product))) {
307 prof = &supported_fx2[j];
308 break;
309 }
310 }
311
312 /* Skip if the device was not found. */
313 if (!prof)
314 continue;
315
316 sdi = g_malloc0(sizeof(struct sr_dev_inst));
317 sdi->status = SR_ST_INITIALIZING;
318 sdi->vendor = g_strdup(prof->vendor);
319 sdi->model = g_strdup(prof->model);
320 sdi->version = g_strdup(prof->model_version);
321 sdi->driver = di;
322 sdi->serial_num = g_strdup(serial_num);
323 sdi->connection_id = g_strdup(connection_id);
324
325 /* Fill in channellist according to this device's profile. */
326 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
327 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
328
329 /* Logic channels, all in one channel group. */
330 cg = g_malloc0(sizeof(struct sr_channel_group));
331 cg->name = g_strdup("Logic");
332 for (j = 0; j < num_logic_channels; j++) {
333 sprintf(channel_name, "D%d", j);
334 ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
335 TRUE, channel_name);
336 cg->channels = g_slist_append(cg->channels, ch);
337 }
338 sdi->channel_groups = g_slist_append(NULL, cg);
339
340 for (j = 0; j < num_analog_channels; j++) {
341 snprintf(channel_name, 16, "A%d", j);
342 ch = sr_channel_new(sdi, j + num_logic_channels,
343 SR_CHANNEL_ANALOG, TRUE, channel_name);
344
345 /* Every analog channel gets its own channel group. */
346 cg = g_malloc0(sizeof(struct sr_channel_group));
347 cg->name = g_strdup(channel_name);
348 cg->channels = g_slist_append(NULL, ch);
349 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
350 }
351
352 devc = fx2lafw_dev_new();
353 devc->profile = prof;
354 if ((prof->dev_caps & DEV_CAPS_16BIT) || (prof->dev_caps & DEV_CAPS_AX_ANALOG))
355 devc->sample_wide = TRUE;
356 sdi->priv = devc;
357 drvc->instances = g_slist_append(drvc->instances, sdi);
358 devices = g_slist_append(devices, sdi);
359
360 if (!strcmp(prof->model, "DSLogic")
361 || !strcmp(prof->model, "DSLogic Pro")
362 || !strcmp(prof->model, "DSCope")) {
363 devc->dslogic = TRUE;
364 devc->samplerates = dslogic_samplerates;
365 devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
366 has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
367 || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
368 } else {
369 devc->dslogic = FALSE;
370 devc->samplerates = samplerates;
371 devc->num_samplerates = ARRAY_SIZE(samplerates);
372 has_firmware = match_manuf_prod(devlist[i],
373 "sigrok", "fx2lafw");
374 }
375
376 if (has_firmware) {
377 /* Already has the firmware, so fix the new address. */
378 sr_dbg("Found an fx2lafw device.");
379 sdi->status = SR_ST_INACTIVE;
380 sdi->inst_type = SR_INST_USB;
381 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
382 libusb_get_device_address(devlist[i]), NULL);
383 } else {
384 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
385 USB_CONFIGURATION, prof->firmware) == SR_OK)
386 /* Store when this device's FW was updated. */
387 devc->fw_updated = g_get_monotonic_time();
388 else
389 sr_err("Firmware upload failed for "
390 "device %d.%d (logical).",
391 libusb_get_bus_number(devlist[i]),
392 libusb_get_device_address(devlist[i]));
393 sdi->inst_type = SR_INST_USB;
394 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
395 0xff, NULL);
396 }
397 }
398 libusb_free_device_list(devlist, 1);
399 g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
400
401 return devices;
402}
403
404static void clear_dev_context(void *priv)
405{
406 struct dev_context *devc;
407
408 devc = priv;
409 g_slist_free(devc->enabled_analog_channels);
410 g_free(devc);
411}
412
413static int dev_clear(const struct sr_dev_driver *di)
414{
415 return std_dev_clear(di, clear_dev_context);
416}
417
418static int dev_open(struct sr_dev_inst *sdi)
419{
420 struct sr_dev_driver *di = sdi->driver;
421 struct sr_usb_dev_inst *usb;
422 struct dev_context *devc;
423 const char *fpga_firmware = NULL;
424 int ret;
425 int64_t timediff_us, timediff_ms;
426
427 devc = sdi->priv;
428 usb = sdi->conn;
429
430 /*
431 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
432 * milliseconds for the FX2 to renumerate.
433 */
434 ret = SR_ERR;
435 if (devc->fw_updated > 0) {
436 sr_info("Waiting for device to reset.");
437 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
438 g_usleep(300 * 1000);
439 timediff_ms = 0;
440 while (timediff_ms < MAX_RENUM_DELAY_MS) {
441 if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
442 break;
443 g_usleep(100 * 1000);
444
445 timediff_us = g_get_monotonic_time() - devc->fw_updated;
446 timediff_ms = timediff_us / 1000;
447 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
448 }
449 if (ret != SR_OK) {
450 sr_err("Device failed to renumerate.");
451 return SR_ERR;
452 }
453 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
454 } else {
455 sr_info("Firmware upload was not needed.");
456 ret = fx2lafw_dev_open(sdi, di);
457 }
458
459 if (ret != SR_OK) {
460 sr_err("Unable to open device.");
461 return SR_ERR;
462 }
463
464 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
465 if (ret != 0) {
466 switch (ret) {
467 case LIBUSB_ERROR_BUSY:
468 sr_err("Unable to claim USB interface. Another "
469 "program or driver has already claimed it.");
470 break;
471 case LIBUSB_ERROR_NO_DEVICE:
472 sr_err("Device has been disconnected.");
473 break;
474 default:
475 sr_err("Unable to claim interface: %s.",
476 libusb_error_name(ret));
477 break;
478 }
479
480 return SR_ERR;
481 }
482
483 if (devc->dslogic) {
484 if (!strcmp(devc->profile->model, "DSLogic")) {
485 if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V)
486 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_3V3;
487 else
488 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_5V;
489 } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
490 fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
491 } else if (!strcmp(devc->profile->model, "DSCope")) {
492 fpga_firmware = DSCOPE_FPGA_FIRMWARE;
493 }
494
495 if ((ret = dslogic_fpga_firmware_upload(sdi, fpga_firmware)) != SR_OK)
496 return ret;
497 }
498 if (devc->cur_samplerate == 0) {
499 /* Samplerate hasn't been set; default to the slowest one. */
500 devc->cur_samplerate = devc->samplerates[0];
501 }
502
503 return SR_OK;
504}
505
506static int dev_close(struct sr_dev_inst *sdi)
507{
508 struct sr_usb_dev_inst *usb;
509
510 usb = sdi->conn;
511 if (!usb->devhdl)
512 return SR_ERR;
513
514 sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
515 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
516 libusb_release_interface(usb->devhdl, USB_INTERFACE);
517 libusb_close(usb->devhdl);
518 usb->devhdl = NULL;
519 sdi->status = SR_ST_INACTIVE;
520
521 return SR_OK;
522}
523
524static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
525 const struct sr_channel_group *cg)
526{
527 struct dev_context *devc;
528 struct sr_usb_dev_inst *usb;
529 GVariant *range[2];
530 unsigned int i;
531 char str[128];
532
533 (void)cg;
534
535 if (!sdi)
536 return SR_ERR_ARG;
537
538 devc = sdi->priv;
539
540 switch (key) {
541 case SR_CONF_CONN:
542 if (!sdi->conn)
543 return SR_ERR_ARG;
544 usb = sdi->conn;
545 if (usb->address == 255)
546 /* Device still needs to re-enumerate after firmware
547 * upload, so we don't know its (future) address. */
548 return SR_ERR;
549 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
550 *data = g_variant_new_string(str);
551 break;
552 case SR_CONF_VOLTAGE_THRESHOLD:
553 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
554 if (volt_thresholds[i].range != devc->dslogic_voltage_threshold)
555 continue;
556 range[0] = g_variant_new_double(volt_thresholds[i].low);
557 range[1] = g_variant_new_double(volt_thresholds[i].high);
558 *data = g_variant_new_tuple(range, 2);
559 break;
560 }
561 break;
562 case SR_CONF_LIMIT_SAMPLES:
563 *data = g_variant_new_uint64(devc->limit_samples);
564 break;
565 case SR_CONF_SAMPLERATE:
566 *data = g_variant_new_uint64(devc->cur_samplerate);
567 break;
568 case SR_CONF_CAPTURE_RATIO:
569 *data = g_variant_new_uint64(devc->capture_ratio);
570 break;
571 case SR_CONF_EXTERNAL_CLOCK:
572 *data = g_variant_new_boolean(devc->dslogic_external_clock);
573 break;
574 case SR_CONF_CONTINUOUS:
575 *data = g_variant_new_boolean(devc->dslogic_continuous_mode);
576 break;
577 default:
578 return SR_ERR_NA;
579 }
580
581 return SR_OK;
582}
583
584static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
585 const struct sr_channel_group *cg)
586{
587 struct dev_context *devc;
588 uint64_t arg;
589 int i, ret;
590 gdouble low, high;
591
592 (void)cg;
593
594 if (!sdi)
595 return SR_ERR_ARG;
596
597 if (sdi->status != SR_ST_ACTIVE)
598 return SR_ERR;
599
600 devc = sdi->priv;
601
602 ret = SR_OK;
603
604 switch (key) {
605 case SR_CONF_SAMPLERATE:
606 arg = g_variant_get_uint64(data);
607 for (i = 0; i < devc->num_samplerates; i++) {
608 if (devc->samplerates[i] == arg) {
609 devc->cur_samplerate = arg;
610 break;
611 }
612 }
613 if (i == devc->num_samplerates)
614 ret = SR_ERR_ARG;
615 break;
616 case SR_CONF_LIMIT_SAMPLES:
617 devc->limit_samples = g_variant_get_uint64(data);
618 break;
619 case SR_CONF_CAPTURE_RATIO:
620 devc->capture_ratio = g_variant_get_uint64(data);
621 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
622 break;
623 case SR_CONF_VOLTAGE_THRESHOLD:
624 g_variant_get(data, "(dd)", &low, &high);
625 ret = SR_ERR_ARG;
626 for (i = 0; (unsigned int)i < ARRAY_SIZE(volt_thresholds); i++) {
627 if (fabs(volt_thresholds[i].low - low) < 0.1 &&
628 fabs(volt_thresholds[i].high - high) < 0.1) {
629 devc->dslogic_voltage_threshold = volt_thresholds[i].range;
630 break;
631 }
632 }
633 if (!strcmp(devc->profile->model, "DSLogic")) {
634 if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_5_V)
635 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_5V);
636 else
637 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_3V3);
638 }else if (!strcmp(devc->profile->model, "DSLogic Pro")){
639 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_PRO_FPGA_FIRMWARE);
640 }
641 break;
642 case SR_CONF_EXTERNAL_CLOCK:
643 devc->dslogic_external_clock = g_variant_get_boolean(data);
644 break;
645 case SR_CONF_CONTINUOUS:
646 devc->dslogic_continuous_mode = g_variant_get_boolean(data);
647 break;
648 default:
649 ret = SR_ERR_NA;
650 }
651
652 return ret;
653}
654
655static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
656 const struct sr_channel_group *cg)
657{
658 struct dev_context *devc;
659 GVariant *gvar, *range[2];
660 GVariantBuilder gvb;
661 unsigned int i;
662
663 (void)cg;
664
665 switch (key) {
666 case SR_CONF_SCAN_OPTIONS:
667 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
668 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
669 break;
670 case SR_CONF_DEVICE_OPTIONS:
671 if (!sdi)
672 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
673 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
674 else{
675 devc = sdi->priv;
676 if (!devc->dslogic)
677 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
678 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
679 else
680 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
681 dslogic_devopts, ARRAY_SIZE(dslogic_devopts), sizeof(uint32_t));
682 }
683 break;
684 case SR_CONF_VOLTAGE_THRESHOLD:
685 if (!sdi->priv) return SR_ERR_ARG;
686 devc = sdi->priv;
687 if (!devc->dslogic) return SR_ERR_NA;
688 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
689 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
690 range[0] = g_variant_new_double(volt_thresholds[i].low);
691 range[1] = g_variant_new_double(volt_thresholds[i].high);
692 gvar = g_variant_new_tuple(range, 2);
693 g_variant_builder_add_value(&gvb, gvar);
694 }
695 *data = g_variant_builder_end(&gvb);
696 break;
697 case SR_CONF_SAMPLERATE:
698 if (!sdi->priv)
699 return SR_ERR_ARG;
700 devc = sdi->priv;
701 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
702 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
703 devc->num_samplerates, sizeof(uint64_t));
704 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
705 *data = g_variant_builder_end(&gvb);
706 break;
707 case SR_CONF_TRIGGER_MATCH:
708 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
709 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
710 sizeof(int32_t));
711 break;
712 default:
713 return SR_ERR_NA;
714 }
715
716 return SR_OK;
717}
718
719static int receive_data(int fd, int revents, void *cb_data)
720{
721 struct timeval tv;
722 struct drv_context *drvc;
723
724 (void)fd;
725 (void)revents;
726
727 drvc = (struct drv_context *)cb_data;
728
729 tv.tv_sec = tv.tv_usec = 0;
730 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
731
732 return TRUE;
733}
734
735static int start_transfers(const struct sr_dev_inst *sdi)
736{
737 struct dev_context *devc;
738 struct sr_usb_dev_inst *usb;
739 struct sr_trigger *trigger;
740 struct libusb_transfer *transfer;
741 unsigned int i, num_transfers;
742 int endpoint, timeout, ret;
743 unsigned char *buf;
744 size_t size;
745
746 devc = sdi->priv;
747 usb = sdi->conn;
748
749 devc->sent_samples = 0;
750 devc->acq_aborted = FALSE;
751 devc->empty_transfer_count = 0;
752
753 if ((trigger = sr_session_trigger_get(sdi->session)) && !devc->dslogic) {
754 int pre_trigger_samples = 0;
755 if (devc->limit_samples > 0)
756 pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
757 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
758 if (!devc->stl)
759 return SR_ERR_MALLOC;
760 devc->trigger_fired = FALSE;
761 } else
762 devc->trigger_fired = TRUE;
763
764 num_transfers = fx2lafw_get_number_of_transfers(devc);
765 size = fx2lafw_get_buffer_size(devc);
766 devc->submitted_transfers = 0;
767
768 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
769 if (!devc->transfers) {
770 sr_err("USB transfers malloc failed.");
771 return SR_ERR_MALLOC;
772 }
773
774 timeout = fx2lafw_get_timeout(devc);
775 endpoint = devc->dslogic ? 6 : 2;
776 devc->num_transfers = num_transfers;
777 for (i = 0; i < num_transfers; i++) {
778 if (!(buf = g_try_malloc(size))) {
779 sr_err("USB transfer buffer malloc failed.");
780 return SR_ERR_MALLOC;
781 }
782 transfer = libusb_alloc_transfer(0);
783 libusb_fill_bulk_transfer(transfer, usb->devhdl,
784 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
785 fx2lafw_receive_transfer, (void *)sdi, timeout);
786 if ((ret = libusb_submit_transfer(transfer)) != 0) {
787 sr_err("Failed to submit transfer: %s.",
788 libusb_error_name(ret));
789 libusb_free_transfer(transfer);
790 g_free(buf);
791 fx2lafw_abort_acquisition(devc);
792 return SR_ERR;
793 }
794 devc->transfers[i] = transfer;
795 devc->submitted_transfers++;
796 }
797
798 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG)
799 devc->send_data_proc = mso_send_data_proc;
800 else
801 devc->send_data_proc = la_send_data_proc;
802
803 std_session_send_df_header(sdi, LOG_PREFIX);
804
805 return SR_OK;
806}
807
808static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
809{
810 const struct sr_dev_inst *sdi;
811 struct dslogic_trigger_pos *tpos;
812 struct dev_context *devc;
813
814 sdi = transfer->user_data;
815 devc = sdi->priv;
816 if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
817 sr_dbg("Trigger transfer canceled.");
818 /* Terminate session. */
819 std_session_send_df_end(sdi, LOG_PREFIX);
820 usb_source_remove(sdi->session, devc->ctx);
821 devc->num_transfers = 0;
822 g_free(devc->transfers);
823 if (devc->stl) {
824 soft_trigger_logic_free(devc->stl);
825 devc->stl = NULL;
826 }
827 } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
828 && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
829 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
830 sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos, tpos->ram_saddr, tpos->remain_cnt);
831 devc->trigger_pos = tpos->real_pos;
832 g_free(tpos);
833 start_transfers(sdi);
834 }
835 libusb_free_transfer(transfer);
836}
837
838static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
839{
840 struct sr_usb_dev_inst *usb;
841 struct libusb_transfer *transfer;
842 struct dslogic_trigger_pos *tpos;
843 struct dev_context *devc;
844 int ret;
845
846 usb = sdi->conn;
847 devc = sdi->priv;
848
849 if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
850 return ret;
851
852 if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
853 return ret;
854
855 /* if this is a dslogic pro, set the voltage threshold */
856 if (!strcmp(devc->profile->model, "DSLogic Pro")){
857 if(devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V){
858 dslogic_set_vth(sdi, 1.4);
859 }else{
860 dslogic_set_vth(sdi, 3.3);
861 }
862 }
863
864 if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
865 return ret;
866
867 sr_dbg("Getting trigger.");
868 tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
869 transfer = libusb_alloc_transfer(0);
870 libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
871 (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
872 dslogic_trigger_receive, (void *)sdi, 0);
873 if ((ret = libusb_submit_transfer(transfer)) < 0) {
874 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
875 libusb_free_transfer(transfer);
876 g_free(tpos);
877 return SR_ERR;
878 }
879
880 devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
881 if (!devc->transfers) {
882 sr_err("USB trigger_pos transfer malloc failed.");
883 return SR_ERR_MALLOC;
884 }
885 devc->num_transfers = 1;
886 devc->submitted_transfers++;
887 devc->transfers[0] = transfer;
888
889 return ret;
890}
891
892static int configure_channels(const struct sr_dev_inst *sdi)
893{
894 struct dev_context *devc;
895 const GSList *l;
896 int p;
897 struct sr_channel *ch;
898
899 devc = sdi->priv;
900
901 g_slist_free(devc->enabled_analog_channels);
902 devc->enabled_analog_channels = NULL;
903 memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled));
904
905 for (l = sdi->channels, p = 0; l; l = l->next, p++) {
906 ch = l->data;
907 if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)) {
908 devc->ch_enabled[p] = ch->enabled;
909 devc->enabled_analog_channels =
910 g_slist_append(devc->enabled_analog_channels, ch);
911 }
912 }
913
914 return SR_OK;
915}
916
917static int dev_acquisition_start(const struct sr_dev_inst *sdi)
918{
919 struct sr_dev_driver *di;
920 struct drv_context *drvc;
921 struct dev_context *devc;
922 int timeout, ret;
923 size_t size;
924
925 if (sdi->status != SR_ST_ACTIVE)
926 return SR_ERR_DEV_CLOSED;
927
928 di = sdi->driver;
929 drvc = di->context;
930 devc = sdi->priv;
931
932 devc->ctx = drvc->sr_ctx;
933 devc->sent_samples = 0;
934 devc->empty_transfer_count = 0;
935 devc->acq_aborted = FALSE;
936
937 if (configure_channels(sdi) != SR_OK) {
938 sr_err("Failed to configure channels.");
939 return SR_ERR;
940 }
941
942 timeout = fx2lafw_get_timeout(devc);
943 usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
944
945 if (devc->dslogic) {
946 dslogic_trigger_request(sdi);
947 } else {
948 size = fx2lafw_get_buffer_size(devc);
949 /* Prepare for analog sampling. */
950 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) {
951 /* We need a buffer half the size of a transfer. */
952 devc->logic_buffer = g_try_malloc(size / 2);
953 devc->analog_buffer = g_try_malloc(
954 sizeof(float) * size / 2);
955 }
956 start_transfers(sdi);
957 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
958 fx2lafw_abort_acquisition(devc);
959 return ret;
960 }
961 }
962
963 return SR_OK;
964}
965
966static int dev_acquisition_stop(struct sr_dev_inst *sdi)
967{
968 struct dev_context *devc;
969
970 devc = sdi->priv;
971
972 if (devc->dslogic)
973 dslogic_stop_acquisition(sdi);
974
975 fx2lafw_abort_acquisition(sdi->priv);
976
977 return SR_OK;
978}
979
980SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
981 .name = "fx2lafw",
982 .longname = "fx2lafw (generic driver for FX2 based LAs)",
983 .api_version = 1,
984 .init = std_init,
985 .cleanup = std_cleanup,
986 .scan = scan,
987 .dev_list = std_dev_list,
988 .dev_clear = dev_clear,
989 .config_get = config_get,
990 .config_set = config_set,
991 .config_list = config_list,
992 .dev_open = dev_open,
993 .dev_close = dev_close,
994 .dev_acquisition_start = dev_acquisition_start,
995 .dev_acquisition_stop = dev_acquisition_stop,
996 .context = NULL,
997};
Hardware access and backend lib