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