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fx2lafw: Always enable wide sampling for dslogic firmware
[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 /*
51 * CWAV USBee ZX
52 */
53 { 0x08a9, 0x0005, "CWAV", "USBee ZX", NULL,
54 "fx2lafw-cwav-usbeezx.fw",
55 0, NULL, NULL},
56
57 /* DreamSourceLab DSLogic (before FW upload) */
58 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
59 "dreamsourcelab-dslogic-fx2.fw",
60 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, NULL, NULL},
61 /* DreamSourceLab DSLogic (after FW upload) */
62 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
63 "dreamsourcelab-dslogic-fx2.fw",
64 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, "DreamSourceLab", "DSLogic"},
65
66 /* DreamSourceLab DSCope (before FW upload) */
67 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
68 "dreamsourcelab-dscope-fx2.fw",
69 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, NULL, NULL},
70 /* DreamSourceLab DSCope (after FW upload) */
71 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
72 "dreamsourcelab-dscope-fx2.fw",
73 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, "DreamSourceLab", "DSCope"},
74
75 /* DreamSourceLab DSLogic Pro (before FW upload) */
76 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
77 "dreamsourcelab-dslogic-pro-fx2.fw",
78 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, NULL, NULL},
79 /* DreamSourceLab DSLogic Pro (after FW upload) */
80 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
81 "dreamsourcelab-dslogic-pro-fx2.fw",
82 DEV_CAPS_16BIT | DEV_CAPS_DSLOGIC_FW, "DreamSourceLab", "DSLogic"},
83
84 /*
85 * Saleae Logic
86 * EE Electronics ESLA100
87 * Robomotic MiniLogic
88 * Robomotic BugLogic 3
89 */
90 { 0x0925, 0x3881, "Saleae", "Logic", NULL,
91 "fx2lafw-saleae-logic.fw",
92 0, NULL, NULL},
93
94 /*
95 * Default Cypress FX2 without EEPROM, e.g.:
96 * Lcsoft Mini Board
97 * Braintechnology USB Interface V2.x
98 */
99 { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
100 "fx2lafw-cypress-fx2.fw",
101 DEV_CAPS_16BIT, NULL, NULL },
102
103 /*
104 * Braintechnology USB-LPS
105 */
106 { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
107 "fx2lafw-braintechnology-usb-lps.fw",
108 DEV_CAPS_16BIT, NULL, NULL },
109
110 /*
111 * sigrok FX2 based 8-channel logic analyzer
112 */
113 { 0x1d50, 0x608c, "sigrok", "FX2 LA (8ch)", NULL,
114 "fx2lafw-sigrok-fx2-8ch.fw",
115 0, NULL, NULL},
116
117 /*
118 * sigrok FX2 based 16-channel logic analyzer
119 */
120 { 0x1d50, 0x608d, "sigrok", "FX2 LA (16ch)", NULL,
121 "fx2lafw-sigrok-fx2-16ch.fw",
122 DEV_CAPS_16BIT, NULL, NULL },
123
124 ALL_ZERO
125};
126
127static const uint32_t drvopts[] = {
128 SR_CONF_LOGIC_ANALYZER,
129};
130
131static const uint32_t scanopts[] = {
132 SR_CONF_CONN,
133};
134
135static const uint32_t devopts[] = {
136 SR_CONF_CONTINUOUS,
137 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
138 SR_CONF_CONN | SR_CONF_GET,
139 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
140 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
141 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
142};
143
144static const uint32_t dslogic_devopts[] = {
145 SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET,
146 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
147 SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
148 SR_CONF_CONN | SR_CONF_GET,
149 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
150 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
151 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
152 SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET,
153 SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
154};
155
156static const int32_t soft_trigger_matches[] = {
157 SR_TRIGGER_ZERO,
158 SR_TRIGGER_ONE,
159 SR_TRIGGER_RISING,
160 SR_TRIGGER_FALLING,
161 SR_TRIGGER_EDGE,
162};
163
164/* Names assigned to available edge slope choices. */
165static const char *const signal_edge_names[] = {
166 [DS_EDGE_RISING] = "rising",
167 [DS_EDGE_FALLING] = "falling",
168};
169
170static const struct {
171 int range;
172 gdouble low;
173 gdouble high;
174} volt_thresholds[] = {
175 { DS_VOLTAGE_RANGE_18_33_V, 0.7, 1.4 },
176 { DS_VOLTAGE_RANGE_5_V, 1.4, 3.6 },
177};
178
179static const uint64_t samplerates[] = {
180 SR_KHZ(20),
181 SR_KHZ(25),
182 SR_KHZ(50),
183 SR_KHZ(100),
184 SR_KHZ(200),
185 SR_KHZ(250),
186 SR_KHZ(500),
187 SR_MHZ(1),
188 SR_MHZ(2),
189 SR_MHZ(3),
190 SR_MHZ(4),
191 SR_MHZ(6),
192 SR_MHZ(8),
193 SR_MHZ(12),
194 SR_MHZ(16),
195 SR_MHZ(24),
196};
197
198static const uint64_t dslogic_samplerates[] = {
199 SR_KHZ(10),
200 SR_KHZ(20),
201 SR_KHZ(50),
202 SR_KHZ(100),
203 SR_KHZ(200),
204 SR_KHZ(500),
205 SR_MHZ(1),
206 SR_MHZ(2),
207 SR_MHZ(5),
208 SR_MHZ(10),
209 SR_MHZ(20),
210 SR_MHZ(25),
211 SR_MHZ(50),
212 SR_MHZ(100),
213 SR_MHZ(200),
214 SR_MHZ(400),
215};
216
217static gboolean is_plausible(const struct libusb_device_descriptor *des)
218{
219 int i;
220
221 for (i = 0; supported_fx2[i].vid; i++) {
222 if (des->idVendor != supported_fx2[i].vid)
223 continue;
224 if (des->idProduct == supported_fx2[i].pid)
225 return TRUE;
226 }
227
228 return FALSE;
229}
230
231static GSList *scan(struct sr_dev_driver *di, GSList *options)
232{
233 struct drv_context *drvc;
234 struct dev_context *devc;
235 struct sr_dev_inst *sdi;
236 struct sr_usb_dev_inst *usb;
237 struct sr_channel *ch;
238 struct sr_channel_group *cg;
239 struct sr_config *src;
240 const struct fx2lafw_profile *prof;
241 GSList *l, *devices, *conn_devices;
242 gboolean has_firmware;
243 struct libusb_device_descriptor des;
244 libusb_device **devlist;
245 struct libusb_device_handle *hdl;
246 int ret, i, j;
247 int num_logic_channels = 0, num_analog_channels = 0;
248 const char *conn;
249 char manufacturer[64], product[64], serial_num[64], connection_id[64];
250 char channel_name[16];
251
252 drvc = di->context;
253
254 conn = NULL;
255 for (l = options; l; l = l->next) {
256 src = l->data;
257 switch (src->key) {
258 case SR_CONF_CONN:
259 conn = g_variant_get_string(src->data, NULL);
260 break;
261 }
262 }
263 if (conn)
264 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
265 else
266 conn_devices = NULL;
267
268 /* Find all fx2lafw compatible devices and upload firmware to them. */
269 devices = NULL;
270 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
271 for (i = 0; devlist[i]; i++) {
272 if (conn) {
273 usb = NULL;
274 for (l = conn_devices; l; l = l->next) {
275 usb = l->data;
276 if (usb->bus == libusb_get_bus_number(devlist[i])
277 && usb->address == libusb_get_device_address(devlist[i]))
278 break;
279 }
280 if (!l)
281 /* This device matched none of the ones that
282 * matched the conn specification. */
283 continue;
284 }
285
286 libusb_get_device_descriptor( devlist[i], &des);
287
288 if (!is_plausible(&des))
289 continue;
290
291 if ((ret = libusb_open(devlist[i], &hdl)) < 0) {
292 sr_warn("Failed to open potential device with "
293 "VID:PID %04x:%04x: %s.", des.idVendor,
294 des.idProduct, libusb_error_name(ret));
295 continue;
296 }
297
298 if (des.iManufacturer == 0) {
299 manufacturer[0] = '\0';
300 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
301 des.iManufacturer, (unsigned char *) manufacturer,
302 sizeof(manufacturer))) < 0) {
303 sr_warn("Failed to get manufacturer string descriptor: %s.",
304 libusb_error_name(ret));
305 continue;
306 }
307
308 if (des.iProduct == 0) {
309 product[0] = '\0';
310 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
311 des.iProduct, (unsigned char *) product,
312 sizeof(product))) < 0) {
313 sr_warn("Failed to get product string descriptor: %s.",
314 libusb_error_name(ret));
315 continue;
316 }
317
318 if (des.iSerialNumber == 0) {
319 serial_num[0] = '\0';
320 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
321 des.iSerialNumber, (unsigned char *) serial_num,
322 sizeof(serial_num))) < 0) {
323 sr_warn("Failed to get serial number string descriptor: %s.",
324 libusb_error_name(ret));
325 continue;
326 }
327
328 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
329
330 libusb_close(hdl);
331
332 prof = NULL;
333 for (j = 0; supported_fx2[j].vid; j++) {
334 if (des.idVendor == supported_fx2[j].vid &&
335 des.idProduct == supported_fx2[j].pid &&
336 (!supported_fx2[j].usb_manufacturer ||
337 !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
338 (!supported_fx2[j].usb_product ||
339 !strcmp(product, supported_fx2[j].usb_product))) {
340 prof = &supported_fx2[j];
341 break;
342 }
343 }
344
345 /* Skip if the device was not found. */
346 if (!prof)
347 continue;
348
349 sdi = g_malloc0(sizeof(struct sr_dev_inst));
350 sdi->status = SR_ST_INITIALIZING;
351 sdi->vendor = g_strdup(prof->vendor);
352 sdi->model = g_strdup(prof->model);
353 sdi->version = g_strdup(prof->model_version);
354 sdi->serial_num = g_strdup(serial_num);
355 sdi->connection_id = g_strdup(connection_id);
356
357 /* Fill in channellist according to this device's profile. */
358 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
359 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
360
361 /* Logic channels, all in one channel group. */
362 cg = g_malloc0(sizeof(struct sr_channel_group));
363 cg->name = g_strdup("Logic");
364 for (j = 0; j < num_logic_channels; j++) {
365 sprintf(channel_name, "D%d", j);
366 ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
367 TRUE, channel_name);
368 cg->channels = g_slist_append(cg->channels, ch);
369 }
370 sdi->channel_groups = g_slist_append(NULL, cg);
371
372 for (j = 0; j < num_analog_channels; j++) {
373 snprintf(channel_name, 16, "A%d", j);
374 ch = sr_channel_new(sdi, j + num_logic_channels,
375 SR_CHANNEL_ANALOG, TRUE, channel_name);
376
377 /* Every analog channel gets its own channel group. */
378 cg = g_malloc0(sizeof(struct sr_channel_group));
379 cg->name = g_strdup(channel_name);
380 cg->channels = g_slist_append(NULL, ch);
381 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
382 }
383
384 devc = fx2lafw_dev_new();
385 devc->profile = prof;
386 sdi->priv = devc;
387 devices = g_slist_append(devices, sdi);
388
389 if (!strcmp(prof->model, "DSLogic")
390 || !strcmp(prof->model, "DSLogic Pro")
391 || !strcmp(prof->model, "DSCope")) {
392 devc->dslogic = TRUE;
393 devc->samplerates = dslogic_samplerates;
394 devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
395 has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
396 || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
397 } else {
398 devc->dslogic = FALSE;
399 devc->samplerates = samplerates;
400 devc->num_samplerates = ARRAY_SIZE(samplerates);
401 has_firmware = match_manuf_prod(devlist[i],
402 "sigrok", "fx2lafw");
403 }
404
405 if (has_firmware) {
406 /* Already has the firmware, so fix the new address. */
407 sr_dbg("Found an fx2lafw device.");
408 sdi->status = SR_ST_INACTIVE;
409 sdi->inst_type = SR_INST_USB;
410 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
411 libusb_get_device_address(devlist[i]), NULL);
412 } else {
413 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
414 USB_CONFIGURATION, prof->firmware) == SR_OK)
415 /* Store when this device's FW was updated. */
416 devc->fw_updated = g_get_monotonic_time();
417 else
418 sr_err("Firmware upload failed for "
419 "device %d.%d (logical).",
420 libusb_get_bus_number(devlist[i]),
421 libusb_get_device_address(devlist[i]));
422 sdi->inst_type = SR_INST_USB;
423 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
424 0xff, NULL);
425 }
426 }
427 libusb_free_device_list(devlist, 1);
428 g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
429
430 return std_scan_complete(di, devices);
431}
432
433static void clear_dev_context(void *priv)
434{
435 struct dev_context *devc;
436
437 devc = priv;
438 g_slist_free(devc->enabled_analog_channels);
439 g_free(devc);
440}
441
442static int dev_clear(const struct sr_dev_driver *di)
443{
444 return std_dev_clear(di, clear_dev_context);
445}
446
447static int dev_open(struct sr_dev_inst *sdi)
448{
449 struct sr_dev_driver *di = sdi->driver;
450 struct sr_usb_dev_inst *usb;
451 struct dev_context *devc;
452 const char *fpga_firmware = NULL;
453 int ret;
454 int64_t timediff_us, timediff_ms;
455
456 devc = sdi->priv;
457 usb = sdi->conn;
458
459 /*
460 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
461 * milliseconds for the FX2 to renumerate.
462 */
463 ret = SR_ERR;
464 if (devc->fw_updated > 0) {
465 sr_info("Waiting for device to reset.");
466 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
467 g_usleep(300 * 1000);
468 timediff_ms = 0;
469 while (timediff_ms < MAX_RENUM_DELAY_MS) {
470 if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
471 break;
472 g_usleep(100 * 1000);
473
474 timediff_us = g_get_monotonic_time() - devc->fw_updated;
475 timediff_ms = timediff_us / 1000;
476 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
477 }
478 if (ret != SR_OK) {
479 sr_err("Device failed to renumerate.");
480 return SR_ERR;
481 }
482 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
483 } else {
484 sr_info("Firmware upload was not needed.");
485 ret = fx2lafw_dev_open(sdi, di);
486 }
487
488 if (ret != SR_OK) {
489 sr_err("Unable to open device.");
490 return SR_ERR;
491 }
492
493 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
494 if (ret != 0) {
495 switch (ret) {
496 case LIBUSB_ERROR_BUSY:
497 sr_err("Unable to claim USB interface. Another "
498 "program or driver has already claimed it.");
499 break;
500 case LIBUSB_ERROR_NO_DEVICE:
501 sr_err("Device has been disconnected.");
502 break;
503 default:
504 sr_err("Unable to claim interface: %s.",
505 libusb_error_name(ret));
506 break;
507 }
508
509 return SR_ERR;
510 }
511
512 if (devc->dslogic) {
513 if (!strcmp(devc->profile->model, "DSLogic")) {
514 if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V)
515 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_3V3;
516 else
517 fpga_firmware = DSLOGIC_FPGA_FIRMWARE_5V;
518 } else if (!strcmp(devc->profile->model, "DSLogic Pro")){
519 fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
520 } else if (!strcmp(devc->profile->model, "DSCope")) {
521 fpga_firmware = DSCOPE_FPGA_FIRMWARE;
522 }
523
524 if ((ret = dslogic_fpga_firmware_upload(sdi, fpga_firmware)) != SR_OK)
525 return ret;
526 }
527 if (devc->cur_samplerate == 0) {
528 /* Samplerate hasn't been set; default to the slowest one. */
529 devc->cur_samplerate = devc->samplerates[0];
530 }
531
532 return SR_OK;
533}
534
535static int dev_close(struct sr_dev_inst *sdi)
536{
537 struct sr_usb_dev_inst *usb;
538
539 usb = sdi->conn;
540
541 if (!usb->devhdl)
542 return SR_ERR;
543
544 sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
545 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
546 libusb_release_interface(usb->devhdl, USB_INTERFACE);
547 libusb_close(usb->devhdl);
548 usb->devhdl = NULL;
549 sdi->status = SR_ST_INACTIVE;
550
551 return SR_OK;
552}
553
554static int config_get(uint32_t key, GVariant **data,
555 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
556{
557 struct dev_context *devc;
558 struct sr_usb_dev_inst *usb;
559 GVariant *range[2];
560 unsigned int i;
561 char str[128];
562
563 (void)cg;
564
565 if (!sdi)
566 return SR_ERR_ARG;
567
568 devc = sdi->priv;
569
570 switch (key) {
571 case SR_CONF_CONN:
572 if (!sdi->conn)
573 return SR_ERR_ARG;
574 usb = sdi->conn;
575 if (usb->address == 255)
576 /* Device still needs to re-enumerate after firmware
577 * upload, so we don't know its (future) address. */
578 return SR_ERR;
579 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
580 *data = g_variant_new_string(str);
581 break;
582 case SR_CONF_VOLTAGE_THRESHOLD:
583 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
584 if (volt_thresholds[i].range != devc->dslogic_voltage_threshold)
585 continue;
586 range[0] = g_variant_new_double(volt_thresholds[i].low);
587 range[1] = g_variant_new_double(volt_thresholds[i].high);
588 *data = g_variant_new_tuple(range, 2);
589 break;
590 }
591 break;
592 case SR_CONF_LIMIT_SAMPLES:
593 *data = g_variant_new_uint64(devc->limit_samples);
594 break;
595 case SR_CONF_SAMPLERATE:
596 *data = g_variant_new_uint64(devc->cur_samplerate);
597 break;
598 case SR_CONF_CAPTURE_RATIO:
599 *data = g_variant_new_uint64(devc->capture_ratio);
600 break;
601 case SR_CONF_EXTERNAL_CLOCK:
602 *data = g_variant_new_boolean(devc->dslogic_external_clock);
603 break;
604 case SR_CONF_CONTINUOUS:
605 *data = g_variant_new_boolean(devc->dslogic_continuous_mode);
606 break;
607 case SR_CONF_CLOCK_EDGE:
608 i = devc->dslogic_clock_edge;
609 if (i >= ARRAY_SIZE(signal_edge_names))
610 return SR_ERR_BUG;
611 *data = g_variant_new_string(signal_edge_names[0]);
612 break;
613 default:
614 return SR_ERR_NA;
615 }
616
617 return SR_OK;
618}
619
620/*
621 * Helper for mapping a string-typed configuration value to an index
622 * within a table of possible values.
623 */
624static int lookup_index(GVariant *value, const char *const *table, int len)
625{
626 const char *entry;
627 int i;
628
629 entry = g_variant_get_string(value, NULL);
630 if (!entry)
631 return -1;
632
633 /* Linear search is fine for very small tables. */
634 for (i = 0; i < len; i++) {
635 if (strcmp(entry, table[i]) == 0)
636 return i;
637 }
638
639 return -1;
640}
641
642static int config_set(uint32_t key, GVariant *data,
643 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
644{
645 struct dev_context *devc;
646 uint64_t arg;
647 int i, ret;
648 gdouble low, high;
649
650 (void)cg;
651
652 if (!sdi)
653 return SR_ERR_ARG;
654
655 if (sdi->status != SR_ST_ACTIVE)
656 return SR_ERR;
657
658 devc = sdi->priv;
659
660 ret = SR_OK;
661
662 switch (key) {
663 case SR_CONF_SAMPLERATE:
664 arg = g_variant_get_uint64(data);
665 for (i = 0; i < devc->num_samplerates; i++) {
666 if (devc->samplerates[i] == arg) {
667 devc->cur_samplerate = arg;
668 break;
669 }
670 }
671 if (i == devc->num_samplerates)
672 ret = SR_ERR_ARG;
673 break;
674 case SR_CONF_LIMIT_SAMPLES:
675 devc->limit_samples = g_variant_get_uint64(data);
676 break;
677 case SR_CONF_CAPTURE_RATIO:
678 devc->capture_ratio = g_variant_get_uint64(data);
679 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
680 break;
681 case SR_CONF_VOLTAGE_THRESHOLD:
682 g_variant_get(data, "(dd)", &low, &high);
683 ret = SR_ERR_ARG;
684 for (i = 0; (unsigned int)i < ARRAY_SIZE(volt_thresholds); i++) {
685 if (fabs(volt_thresholds[i].low - low) < 0.1 &&
686 fabs(volt_thresholds[i].high - high) < 0.1) {
687 devc->dslogic_voltage_threshold = volt_thresholds[i].range;
688 break;
689 }
690 }
691 if (!strcmp(devc->profile->model, "DSLogic")) {
692 if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_5_V)
693 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_5V);
694 else
695 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_FPGA_FIRMWARE_3V3);
696 } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
697 ret = dslogic_fpga_firmware_upload(sdi, DSLOGIC_PRO_FPGA_FIRMWARE);
698 }
699 break;
700 case SR_CONF_EXTERNAL_CLOCK:
701 devc->dslogic_external_clock = g_variant_get_boolean(data);
702 break;
703 case SR_CONF_CONTINUOUS:
704 devc->dslogic_continuous_mode = g_variant_get_boolean(data);
705 break;
706 case SR_CONF_CLOCK_EDGE:
707 i = lookup_index(data, signal_edge_names,
708 ARRAY_SIZE(signal_edge_names));
709 if (i < 0)
710 return SR_ERR_ARG;
711 devc->dslogic_clock_edge = i;
712 break;
713 default:
714 ret = SR_ERR_NA;
715 }
716
717 return ret;
718}
719
720static int config_list(uint32_t key, GVariant **data,
721 const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
722{
723 struct dev_context *devc;
724 GVariant *gvar, *range[2];
725 GVariantBuilder gvb;
726 unsigned int i;
727
728 (void)cg;
729
730 switch (key) {
731 case SR_CONF_SCAN_OPTIONS:
732 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
733 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
734 break;
735 case SR_CONF_DEVICE_OPTIONS:
736 if (!sdi) {
737 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
738 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
739 } else {
740 devc = sdi->priv;
741 if (!devc->dslogic)
742 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
743 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
744 else
745 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
746 dslogic_devopts, ARRAY_SIZE(dslogic_devopts), sizeof(uint32_t));
747 }
748 break;
749 case SR_CONF_VOLTAGE_THRESHOLD:
750 if (!sdi->priv)
751 return SR_ERR_ARG;
752 devc = sdi->priv;
753 if (!devc->dslogic)
754 return SR_ERR_NA;
755 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
756 for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) {
757 range[0] = g_variant_new_double(volt_thresholds[i].low);
758 range[1] = g_variant_new_double(volt_thresholds[i].high);
759 gvar = g_variant_new_tuple(range, 2);
760 g_variant_builder_add_value(&gvb, gvar);
761 }
762 *data = g_variant_builder_end(&gvb);
763 break;
764 case SR_CONF_SAMPLERATE:
765 devc = sdi->priv;
766 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
767 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
768 devc->num_samplerates, sizeof(uint64_t));
769 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
770 *data = g_variant_builder_end(&gvb);
771 break;
772 case SR_CONF_TRIGGER_MATCH:
773 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
774 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
775 sizeof(int32_t));
776 break;
777 case SR_CONF_CLOCK_EDGE:
778 *data = g_variant_new_strv(signal_edge_names,
779 ARRAY_SIZE(signal_edge_names));
780 break;
781 default:
782 return SR_ERR_NA;
783 }
784
785 return SR_OK;
786}
787
788static int receive_data(int fd, int revents, void *cb_data)
789{
790 struct timeval tv;
791 struct drv_context *drvc;
792
793 (void)fd;
794 (void)revents;
795
796 drvc = (struct drv_context *)cb_data;
797
798 tv.tv_sec = tv.tv_usec = 0;
799 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
800
801 return TRUE;
802}
803
804static int start_transfers(const struct sr_dev_inst *sdi)
805{
806 struct dev_context *devc;
807 struct sr_usb_dev_inst *usb;
808 struct sr_trigger *trigger;
809 struct libusb_transfer *transfer;
810 unsigned int i, num_transfers;
811 int endpoint, timeout, ret;
812 unsigned char *buf;
813 size_t size;
814
815 devc = sdi->priv;
816 usb = sdi->conn;
817
818 devc->sent_samples = 0;
819 devc->acq_aborted = FALSE;
820 devc->empty_transfer_count = 0;
821
822 if ((trigger = sr_session_trigger_get(sdi->session)) && !devc->dslogic) {
823 int pre_trigger_samples = 0;
824 if (devc->limit_samples > 0)
825 pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
826 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
827 if (!devc->stl)
828 return SR_ERR_MALLOC;
829 devc->trigger_fired = FALSE;
830 } else
831 devc->trigger_fired = TRUE;
832
833 num_transfers = fx2lafw_get_number_of_transfers(devc);
834
835 //if (devc->dslogic)
836 // num_transfers = dslogic_get_number_of_transfers(devc);
837
838 if (devc->dslogic) {
839 if (devc->cur_samplerate == SR_MHZ(100))
840 num_transfers = 16;
841 else if (devc->cur_samplerate == SR_MHZ(200))
842 num_transfers = 8;
843 else if (devc->cur_samplerate == SR_MHZ(400))
844 num_transfers = 4;
845 }
846
847 size = fx2lafw_get_buffer_size(devc);
848 devc->submitted_transfers = 0;
849
850 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
851 if (!devc->transfers) {
852 sr_err("USB transfers malloc failed.");
853 return SR_ERR_MALLOC;
854 }
855
856 timeout = fx2lafw_get_timeout(devc);
857 endpoint = devc->dslogic ? 6 : 2;
858 devc->num_transfers = num_transfers;
859 for (i = 0; i < num_transfers; i++) {
860 if (!(buf = g_try_malloc(size))) {
861 sr_err("USB transfer buffer malloc failed.");
862 return SR_ERR_MALLOC;
863 }
864 transfer = libusb_alloc_transfer(0);
865 libusb_fill_bulk_transfer(transfer, usb->devhdl,
866 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
867 fx2lafw_receive_transfer, (void *)sdi, timeout);
868 sr_info("submitting transfer: %d", i);
869 if ((ret = libusb_submit_transfer(transfer)) != 0) {
870 sr_err("Failed to submit transfer: %s.",
871 libusb_error_name(ret));
872 libusb_free_transfer(transfer);
873 g_free(buf);
874 fx2lafw_abort_acquisition(devc);
875 return SR_ERR;
876 }
877 devc->transfers[i] = transfer;
878 devc->submitted_transfers++;
879 }
880
881 /*
882 * If this device has analog channels and at least one of them is
883 * enabled, use mso_send_data_proc() to properly handle the analog
884 * data. Otherwise use la_send_data_proc().
885 */
886 if (g_slist_length(devc->enabled_analog_channels) > 0)
887 devc->send_data_proc = mso_send_data_proc;
888 else
889 devc->send_data_proc = la_send_data_proc;
890
891 std_session_send_df_header(sdi);
892
893 return SR_OK;
894}
895
896static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
897{
898 const struct sr_dev_inst *sdi;
899 struct dslogic_trigger_pos *tpos;
900 struct dev_context *devc;
901
902 sdi = transfer->user_data;
903 devc = sdi->priv;
904 if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
905 sr_dbg("Trigger transfer canceled.");
906 /* Terminate session. */
907 std_session_send_df_end(sdi);
908 usb_source_remove(sdi->session, devc->ctx);
909 devc->num_transfers = 0;
910 g_free(devc->transfers);
911 if (devc->stl) {
912 soft_trigger_logic_free(devc->stl);
913 devc->stl = NULL;
914 }
915 } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
916 && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
917 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
918 sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos,
919 tpos->ram_saddr, tpos->remain_cnt);
920 devc->trigger_pos = tpos->real_pos;
921 g_free(tpos);
922 start_transfers(sdi);
923 }
924 libusb_free_transfer(transfer);
925}
926
927static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
928{
929 struct sr_usb_dev_inst *usb;
930 struct libusb_transfer *transfer;
931 struct dslogic_trigger_pos *tpos;
932 struct dev_context *devc;
933 int ret;
934
935 usb = sdi->conn;
936 devc = sdi->priv;
937
938 if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
939 return ret;
940
941 if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
942 return ret;
943
944 /* If this is a DSLogic Pro, set the voltage threshold. */
945 if (!strcmp(devc->profile->model, "DSLogic Pro")){
946 if (devc->dslogic_voltage_threshold == DS_VOLTAGE_RANGE_18_33_V) {
947 dslogic_set_vth(sdi, 1.4);
948 } else {
949 dslogic_set_vth(sdi, 3.3);
950 }
951 }
952
953 if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
954 return ret;
955
956 sr_dbg("Getting trigger.");
957 tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
958 transfer = libusb_alloc_transfer(0);
959 libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
960 (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
961 dslogic_trigger_receive, (void *)sdi, 0);
962 if ((ret = libusb_submit_transfer(transfer)) < 0) {
963 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
964 libusb_free_transfer(transfer);
965 g_free(tpos);
966 return SR_ERR;
967 }
968
969 devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
970 if (!devc->transfers) {
971 sr_err("USB trigger_pos transfer malloc failed.");
972 return SR_ERR_MALLOC;
973 }
974 devc->num_transfers = 1;
975 devc->submitted_transfers++;
976 devc->transfers[0] = transfer;
977
978 return ret;
979}
980
981static int configure_channels(const struct sr_dev_inst *sdi)
982{
983 struct dev_context *devc;
984 const GSList *l;
985 int p;
986 struct sr_channel *ch;
987 uint32_t channel_mask = 0, num_analog = 0;
988
989 devc = sdi->priv;
990
991 g_slist_free(devc->enabled_analog_channels);
992 devc->enabled_analog_channels = NULL;
993
994 for (l = sdi->channels, p = 0; l; l = l->next, p++) {
995 ch = l->data;
996 if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)
997 && (ch->enabled)) {
998 num_analog++;
999 devc->enabled_analog_channels =
1000 g_slist_append(devc->enabled_analog_channels, ch);
1001 } else {
1002 channel_mask |= ch->enabled << p;
1003 }
1004 }
1005
1006 /*
1007 * Use wide sampling if either any of the LA channels 8..15 is enabled,
1008 * and/or at least one analog channel is enabled, and/or the device
1009 * is running DSLogic firmware (not fx2lafw).
1010 */
1011 devc->sample_wide = (channel_mask > 0xff
1012 || num_analog > 0
1013 || (devc->profile->dev_caps & DEV_CAPS_DSLOGIC_FW));
1014
1015 return SR_OK;
1016}
1017
1018static int dev_acquisition_start(const struct sr_dev_inst *sdi)
1019{
1020 struct sr_dev_driver *di;
1021 struct drv_context *drvc;
1022 struct dev_context *devc;
1023 int timeout, ret;
1024 size_t size;
1025
1026 if (sdi->status != SR_ST_ACTIVE)
1027 return SR_ERR_DEV_CLOSED;
1028
1029 di = sdi->driver;
1030 drvc = di->context;
1031 devc = sdi->priv;
1032
1033 devc->ctx = drvc->sr_ctx;
1034 devc->sent_samples = 0;
1035 devc->empty_transfer_count = 0;
1036 devc->acq_aborted = FALSE;
1037
1038 if (configure_channels(sdi) != SR_OK) {
1039 sr_err("Failed to configure channels.");
1040 return SR_ERR;
1041 }
1042
1043 timeout = fx2lafw_get_timeout(devc);
1044 usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
1045
1046 if (devc->dslogic) {
1047 dslogic_trigger_request(sdi);
1048 } else {
1049 size = fx2lafw_get_buffer_size(devc);
1050 /* Prepare for analog sampling. */
1051 if (g_slist_length(devc->enabled_analog_channels) > 0) {
1052 /* We need a buffer half the size of a transfer. */
1053 devc->logic_buffer = g_try_malloc(size / 2);
1054 devc->analog_buffer = g_try_malloc(
1055 sizeof(float) * size / 2);
1056 }
1057 start_transfers(sdi);
1058 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
1059 fx2lafw_abort_acquisition(devc);
1060 return ret;
1061 }
1062 }
1063
1064 return SR_OK;
1065}
1066
1067static int dev_acquisition_stop(struct sr_dev_inst *sdi)
1068{
1069 struct dev_context *devc;
1070
1071 devc = sdi->priv;
1072
1073 if (devc->dslogic)
1074 dslogic_stop_acquisition(sdi);
1075
1076 fx2lafw_abort_acquisition(sdi->priv);
1077
1078 return SR_OK;
1079}
1080
1081static struct sr_dev_driver fx2lafw_driver_info = {
1082 .name = "fx2lafw",
1083 .longname = "fx2lafw (generic driver for FX2 based LAs)",
1084 .api_version = 1,
1085 .init = std_init,
1086 .cleanup = std_cleanup,
1087 .scan = scan,
1088 .dev_list = std_dev_list,
1089 .dev_clear = dev_clear,
1090 .config_get = config_get,
1091 .config_set = config_set,
1092 .config_list = config_list,
1093 .dev_open = dev_open,
1094 .dev_close = dev_close,
1095 .dev_acquisition_start = dev_acquisition_start,
1096 .dev_acquisition_stop = dev_acquisition_stop,
1097 .context = NULL,
1098};
1099SR_REGISTER_DEV_DRIVER(fx2lafw_driver_info);
Hardware access and backend lib