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fx2lafw: Add CTL2 clocking command flag to header
[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
25static const struct fx2lafw_profile supported_fx2[] = {
26 /*
27 * CWAV USBee AX
28 * EE Electronics ESLA201A
29 * ARMFLY AX-Pro
30 */
31 { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL,
32 "fx2lafw-cwav-usbeeax.fw",
33 DEV_CAPS_AX_ANALOG, NULL, NULL},
34 /*
35 * CWAV USBee DX
36 * XZL-Studio DX
37 */
38 { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL,
39 "fx2lafw-cwav-usbeedx.fw",
40 DEV_CAPS_16BIT, NULL, NULL },
41
42 /*
43 * CWAV USBee SX
44 */
45 { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL,
46 "fx2lafw-cwav-usbeesx.fw",
47 0, NULL, NULL},
48
49 /* DreamSourceLab DSLogic (before FW upload) */
50 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
51 "dreamsourcelab-dslogic-fx2.fw",
52 DEV_CAPS_16BIT, NULL, NULL},
53 /* DreamSourceLab DSLogic (after FW upload) */
54 { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL,
55 "dreamsourcelab-dslogic-fx2.fw",
56 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
57
58 /* DreamSourceLab DSCope (before FW upload) */
59 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
60 "dreamsourcelab-dscope-fx2.fw",
61 DEV_CAPS_16BIT, NULL, NULL},
62 /* DreamSourceLab DSCope (after FW upload) */
63 { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL,
64 "dreamsourcelab-dscope-fx2.fw",
65 DEV_CAPS_16BIT, "DreamSourceLab", "DSCope"},
66
67 /* DreamSourceLab DSLogic Pro (before FW upload) */
68 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
69 "dreamsourcelab-dslogic-pro-fx2.fw",
70 DEV_CAPS_16BIT, NULL, NULL},
71 /* DreamSourceLab DSLogic Pro (after FW upload) */
72 { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL,
73 "dreamsourcelab-dslogic-pro-fx2.fw",
74 DEV_CAPS_16BIT, "DreamSourceLab", "DSLogic"},
75
76 /*
77 * Saleae Logic
78 * EE Electronics ESLA100
79 * Robomotic MiniLogic
80 * Robomotic BugLogic 3
81 */
82 { 0x0925, 0x3881, "Saleae", "Logic", NULL,
83 "fx2lafw-saleae-logic.fw",
84 0, NULL, NULL},
85
86 /*
87 * Default Cypress FX2 without EEPROM, e.g.:
88 * Lcsoft Mini Board
89 * Braintechnology USB Interface V2.x
90 */
91 { 0x04B4, 0x8613, "Cypress", "FX2", NULL,
92 "fx2lafw-cypress-fx2.fw",
93 DEV_CAPS_16BIT, NULL, NULL },
94
95 /*
96 * Braintechnology USB-LPS
97 */
98 { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL,
99 "fx2lafw-braintechnology-usb-lps.fw",
100 DEV_CAPS_16BIT, NULL, NULL },
101
102 /*
103 * sigrok FX2 based 8-channel logic analyzer
104 */
105 { 0x1d50, 0x608c, "sigrok", "FX2 LA (8ch)", NULL,
106 "fx2lafw-sigrok-fx2-8ch.fw",
107 0, NULL, NULL},
108
109 /*
110 * sigrok FX2 based 16-channel logic analyzer
111 */
112 { 0x1d50, 0x608d, "sigrok", "FX2 LA (16ch)", NULL,
113 "fx2lafw-sigrok-fx2-16ch.fw",
114 DEV_CAPS_16BIT, NULL, NULL },
115
116 ALL_ZERO
117};
118
119static const uint32_t drvopts[] = {
120 SR_CONF_LOGIC_ANALYZER,
121};
122
123static const uint32_t scanopts[] = {
124 SR_CONF_CONN,
125};
126
127static const uint32_t devopts[] = {
128 SR_CONF_CONTINUOUS | SR_CONF_SET,
129 SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
130 SR_CONF_CONN | SR_CONF_GET,
131 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
132 SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
133 SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
134};
135
136static const char *channel_names[] = {
137 "0", "1", "2", "3", "4", "5", "6", "7",
138 "8", "9", "10", "11", "12", "13", "14", "15",
139};
140
141static const char *ax_channel_names[] = {
142 "A0",
143};
144
145static const int32_t soft_trigger_matches[] = {
146 SR_TRIGGER_ZERO,
147 SR_TRIGGER_ONE,
148 SR_TRIGGER_RISING,
149 SR_TRIGGER_FALLING,
150 SR_TRIGGER_EDGE,
151};
152
153static const uint64_t samplerates[] = {
154 SR_KHZ(20),
155 SR_KHZ(25),
156 SR_KHZ(50),
157 SR_KHZ(100),
158 SR_KHZ(200),
159 SR_KHZ(250),
160 SR_KHZ(500),
161 SR_MHZ(1),
162 SR_MHZ(2),
163 SR_MHZ(3),
164 SR_MHZ(4),
165 SR_MHZ(6),
166 SR_MHZ(8),
167 SR_MHZ(12),
168 SR_MHZ(16),
169 SR_MHZ(24),
170};
171
172static const uint64_t dslogic_samplerates[] = {
173 SR_KHZ(10),
174 SR_KHZ(20),
175 SR_KHZ(50),
176 SR_KHZ(100),
177 SR_KHZ(200),
178 SR_KHZ(500),
179 SR_MHZ(1),
180 SR_MHZ(2),
181 SR_MHZ(5),
182 SR_MHZ(10),
183 SR_MHZ(20),
184 SR_MHZ(25),
185 SR_MHZ(50),
186 SR_MHZ(100),
187 SR_MHZ(200),
188 SR_MHZ(400),
189};
190
191SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
192
193static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
194{
195 return std_init(sr_ctx, di, LOG_PREFIX);
196}
197
198static GSList *scan(struct sr_dev_driver *di, GSList *options)
199{
200 struct drv_context *drvc;
201 struct dev_context *devc;
202 struct sr_dev_inst *sdi;
203 struct sr_usb_dev_inst *usb;
204 struct sr_config *src;
205 const struct fx2lafw_profile *prof;
206 GSList *l, *devices, *conn_devices;
207 gboolean has_firmware;
208 struct libusb_device_descriptor des;
209 libusb_device **devlist;
210 struct libusb_device_handle *hdl;
211 int ret, i, j;
212 int num_logic_channels = 0, num_analog_channels = 0;
213 const char *conn;
214 char manufacturer[64], product[64], serial_num[64], connection_id[64];
215
216 drvc = di->context;
217
218 conn = NULL;
219 for (l = options; l; l = l->next) {
220 src = l->data;
221 switch (src->key) {
222 case SR_CONF_CONN:
223 conn = g_variant_get_string(src->data, NULL);
224 break;
225 }
226 }
227 if (conn)
228 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
229 else
230 conn_devices = NULL;
231
232 /* Find all fx2lafw compatible devices and upload firmware to them. */
233 devices = NULL;
234 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
235 for (i = 0; devlist[i]; i++) {
236 if (conn) {
237 usb = NULL;
238 for (l = conn_devices; l; l = l->next) {
239 usb = l->data;
240 if (usb->bus == libusb_get_bus_number(devlist[i])
241 && usb->address == libusb_get_device_address(devlist[i]))
242 break;
243 }
244 if (!l)
245 /* This device matched none of the ones that
246 * matched the conn specification. */
247 continue;
248 }
249
250 libusb_get_device_descriptor( devlist[i], &des);
251
252 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
253 continue;
254
255 if (des.iManufacturer == 0) {
256 manufacturer[0] = '\0';
257 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
258 des.iManufacturer, (unsigned char *) manufacturer,
259 sizeof(manufacturer))) < 0) {
260 sr_warn("Failed to get manufacturer string descriptor: %s.",
261 libusb_error_name(ret));
262 continue;
263 }
264
265 if (des.iProduct == 0) {
266 product[0] = '\0';
267 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
268 des.iProduct, (unsigned char *) product,
269 sizeof(product))) < 0) {
270 sr_warn("Failed to get product string descriptor: %s.",
271 libusb_error_name(ret));
272 continue;
273 }
274
275 if (des.iSerialNumber == 0) {
276 serial_num[0] = '\0';
277 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
278 des.iSerialNumber, (unsigned char *) serial_num,
279 sizeof(serial_num))) < 0) {
280 sr_warn("Failed to get serial number string descriptor: %s.",
281 libusb_error_name(ret));
282 continue;
283 }
284
285 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
286
287 libusb_close(hdl);
288
289 prof = NULL;
290 for (j = 0; supported_fx2[j].vid; j++) {
291 if (des.idVendor == supported_fx2[j].vid &&
292 des.idProduct == supported_fx2[j].pid &&
293 (!supported_fx2[j].usb_manufacturer ||
294 !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
295 (!supported_fx2[j].usb_manufacturer ||
296 !strcmp(product, supported_fx2[j].usb_product))) {
297 prof = &supported_fx2[j];
298 break;
299 }
300 }
301
302 /* Skip if the device was not found. */
303 if (!prof)
304 continue;
305
306 sdi = g_malloc0(sizeof(struct sr_dev_inst));
307 sdi->status = SR_ST_INITIALIZING;
308 sdi->vendor = g_strdup(prof->vendor);
309 sdi->model = g_strdup(prof->model);
310 sdi->version = g_strdup(prof->model_version);
311 sdi->driver = di;
312 sdi->serial_num = g_strdup(serial_num);
313 sdi->connection_id = g_strdup(connection_id);
314
315 /* Fill in channellist according to this device's profile. */
316 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
317 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
318
319 for (j = 0; j < num_logic_channels; j++)
320 sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE,
321 channel_names[j]);
322
323 for (j = 0; j < num_analog_channels; j++)
324 sr_channel_new(sdi, j, SR_CHANNEL_ANALOG, TRUE,
325 ax_channel_names[j]);
326
327 devc = fx2lafw_dev_new();
328 devc->profile = prof;
329 devc->sample_wide = (prof->dev_caps & DEV_CAPS_16BIT) != 0;
330 sdi->priv = devc;
331 drvc->instances = g_slist_append(drvc->instances, sdi);
332 devices = g_slist_append(devices, sdi);
333
334 if (!strcmp(prof->model, "DSLogic")
335 || !strcmp(prof->model, "DSLogic Pro")
336 || !strcmp(prof->model, "DSCope")) {
337 devc->dslogic = TRUE;
338 devc->samplerates = dslogic_samplerates;
339 devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
340 has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
341 || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
342 } else {
343 devc->dslogic = FALSE;
344 devc->samplerates = samplerates;
345 devc->num_samplerates = ARRAY_SIZE(samplerates);
346 has_firmware = match_manuf_prod(devlist[i],
347 "sigrok", "fx2lafw");
348 }
349
350 if (has_firmware) {
351 /* Already has the firmware, so fix the new address. */
352 sr_dbg("Found an fx2lafw device.");
353 sdi->status = SR_ST_INACTIVE;
354 sdi->inst_type = SR_INST_USB;
355 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
356 libusb_get_device_address(devlist[i]), NULL);
357 } else {
358 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
359 USB_CONFIGURATION, prof->firmware) == SR_OK)
360 /* Store when this device's FW was updated. */
361 devc->fw_updated = g_get_monotonic_time();
362 else
363 sr_err("Firmware upload failed for "
364 "device %d.%d (logical).",
365 libusb_get_bus_number(devlist[i]),
366 libusb_get_device_address(devlist[i]));
367 sdi->inst_type = SR_INST_USB;
368 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
369 0xff, NULL);
370 }
371 }
372 libusb_free_device_list(devlist, 1);
373 g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
374
375 return devices;
376}
377
378static GSList *dev_list(const struct sr_dev_driver *di)
379{
380 return ((struct drv_context *)(di->context))->instances;
381}
382
383static int dev_open(struct sr_dev_inst *sdi)
384{
385 struct sr_dev_driver *di = sdi->driver;
386 struct sr_usb_dev_inst *usb;
387 struct dev_context *devc;
388 const char *fpga_firmware = NULL;
389 int ret;
390 int64_t timediff_us, timediff_ms;
391
392 devc = sdi->priv;
393 usb = sdi->conn;
394
395 /*
396 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
397 * milliseconds for the FX2 to renumerate.
398 */
399 ret = SR_ERR;
400 if (devc->fw_updated > 0) {
401 sr_info("Waiting for device to reset.");
402 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
403 g_usleep(300 * 1000);
404 timediff_ms = 0;
405 while (timediff_ms < MAX_RENUM_DELAY_MS) {
406 if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
407 break;
408 g_usleep(100 * 1000);
409
410 timediff_us = g_get_monotonic_time() - devc->fw_updated;
411 timediff_ms = timediff_us / 1000;
412 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
413 }
414 if (ret != SR_OK) {
415 sr_err("Device failed to renumerate.");
416 return SR_ERR;
417 }
418 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
419 } else {
420 sr_info("Firmware upload was not needed.");
421 ret = fx2lafw_dev_open(sdi, di);
422 }
423
424 if (ret != SR_OK) {
425 sr_err("Unable to open device.");
426 return SR_ERR;
427 }
428
429 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
430 if (ret != 0) {
431 switch (ret) {
432 case LIBUSB_ERROR_BUSY:
433 sr_err("Unable to claim USB interface. Another "
434 "program or driver has already claimed it.");
435 break;
436 case LIBUSB_ERROR_NO_DEVICE:
437 sr_err("Device has been disconnected.");
438 break;
439 default:
440 sr_err("Unable to claim interface: %s.",
441 libusb_error_name(ret));
442 break;
443 }
444
445 return SR_ERR;
446 }
447
448 if (devc->dslogic) {
449 if (!strcmp(devc->profile->model, "DSLogic")) {
450 fpga_firmware = DSLOGIC_FPGA_FIRMWARE;
451 } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
452 fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
453 } else if (!strcmp(devc->profile->model, "DSCope")) {
454 fpga_firmware = DSCOPE_FPGA_FIRMWARE;
455 }
456
457 if ((ret = dslogic_fpga_firmware_upload(sdi,
458 fpga_firmware)) != SR_OK)
459 return ret;
460 }
461
462 if (devc->cur_samplerate == 0) {
463 /* Samplerate hasn't been set; default to the slowest one. */
464 devc->cur_samplerate = devc->samplerates[0];
465 }
466
467 return SR_OK;
468}
469
470static int dev_close(struct sr_dev_inst *sdi)
471{
472 struct sr_usb_dev_inst *usb;
473
474 usb = sdi->conn;
475 if (!usb->devhdl)
476 return SR_ERR;
477
478 sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
479 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
480 libusb_release_interface(usb->devhdl, USB_INTERFACE);
481 libusb_close(usb->devhdl);
482 usb->devhdl = NULL;
483 sdi->status = SR_ST_INACTIVE;
484
485 return SR_OK;
486}
487
488static int cleanup(const struct sr_dev_driver *di)
489{
490 int ret;
491 struct drv_context *drvc;
492
493 if (!(drvc = di->context))
494 return SR_OK;
495
496 ret = std_dev_clear(di, NULL);
497
498 g_free(drvc);
499
500 return ret;
501}
502
503static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
504 const struct sr_channel_group *cg)
505{
506 struct dev_context *devc;
507 struct sr_usb_dev_inst *usb;
508 char str[128];
509
510 (void)cg;
511
512 if (!sdi)
513 return SR_ERR_ARG;
514
515 devc = sdi->priv;
516
517 switch (key) {
518 case SR_CONF_CONN:
519 if (!sdi->conn)
520 return SR_ERR_ARG;
521 usb = sdi->conn;
522 if (usb->address == 255)
523 /* Device still needs to re-enumerate after firmware
524 * upload, so we don't know its (future) address. */
525 return SR_ERR;
526 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
527 *data = g_variant_new_string(str);
528 break;
529 case SR_CONF_LIMIT_SAMPLES:
530 *data = g_variant_new_uint64(devc->limit_samples);
531 break;
532 case SR_CONF_SAMPLERATE:
533 *data = g_variant_new_uint64(devc->cur_samplerate);
534 break;
535 case SR_CONF_CAPTURE_RATIO:
536 *data = g_variant_new_uint64(devc->capture_ratio);
537 break;
538 default:
539 return SR_ERR_NA;
540 }
541
542 return SR_OK;
543}
544
545static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
546 const struct sr_channel_group *cg)
547{
548 struct dev_context *devc;
549 uint64_t arg;
550 int i, ret;
551
552 (void)cg;
553
554 if (!sdi)
555 return SR_ERR_ARG;
556
557 if (sdi->status != SR_ST_ACTIVE)
558 return SR_ERR;
559
560 devc = sdi->priv;
561
562 ret = SR_OK;
563
564 switch (key) {
565 case SR_CONF_SAMPLERATE:
566 arg = g_variant_get_uint64(data);
567 for (i = 0; i < devc->num_samplerates; i++) {
568 if (devc->samplerates[i] == arg) {
569 devc->cur_samplerate = arg;
570 break;
571 }
572 }
573 if (i == devc->num_samplerates)
574 ret = SR_ERR_ARG;
575 break;
576 case SR_CONF_LIMIT_SAMPLES:
577 devc->limit_samples = g_variant_get_uint64(data);
578 break;
579 case SR_CONF_CAPTURE_RATIO:
580 devc->capture_ratio = g_variant_get_uint64(data);
581 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
582 break;
583 default:
584 ret = SR_ERR_NA;
585 }
586
587 return ret;
588}
589
590static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
591 const struct sr_channel_group *cg)
592{
593 struct dev_context *devc;
594 GVariant *gvar;
595 GVariantBuilder gvb;
596
597 (void)cg;
598
599 switch (key) {
600 case SR_CONF_SCAN_OPTIONS:
601 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
602 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
603 break;
604 case SR_CONF_DEVICE_OPTIONS:
605 if (!sdi)
606 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
607 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
608 else
609 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
610 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
611 break;
612 case SR_CONF_SAMPLERATE:
613 if (!sdi->priv)
614 return SR_ERR_ARG;
615 devc = sdi->priv;
616 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
617 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
618 devc->num_samplerates, sizeof(uint64_t));
619 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
620 *data = g_variant_builder_end(&gvb);
621 break;
622 case SR_CONF_TRIGGER_MATCH:
623 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
624 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
625 sizeof(int32_t));
626 break;
627 default:
628 return SR_ERR_NA;
629 }
630
631 return SR_OK;
632}
633
634static int receive_data(int fd, int revents, void *cb_data)
635{
636 struct timeval tv;
637 struct drv_context *drvc;
638
639 (void)fd;
640 (void)revents;
641
642 drvc = (struct drv_context *)cb_data;
643
644 tv.tv_sec = tv.tv_usec = 0;
645 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
646
647 return TRUE;
648}
649
650static int start_transfers(const struct sr_dev_inst *sdi)
651{
652 struct dev_context *devc;
653 struct sr_usb_dev_inst *usb;
654 struct sr_trigger *trigger;
655 struct libusb_transfer *transfer;
656 unsigned int i, num_transfers;
657 int endpoint, timeout, ret;
658 unsigned char *buf;
659 size_t size;
660
661 devc = sdi->priv;
662 usb = sdi->conn;
663
664 devc->sent_samples = 0;
665 devc->acq_aborted = FALSE;
666 devc->empty_transfer_count = 0;
667
668 if ((trigger = sr_session_trigger_get(sdi->session))) {
669 int pre_trigger_samples = 0;
670 if (devc->limit_samples > 0)
671 pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
672 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
673 if (!devc->stl)
674 return SR_ERR_MALLOC;
675 devc->trigger_fired = FALSE;
676 } else
677 devc->trigger_fired = TRUE;
678
679 num_transfers = fx2lafw_get_number_of_transfers(devc);
680 size = fx2lafw_get_buffer_size(devc);
681 devc->submitted_transfers = 0;
682
683 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
684 if (!devc->transfers) {
685 sr_err("USB transfers malloc failed.");
686 return SR_ERR_MALLOC;
687 }
688
689 timeout = fx2lafw_get_timeout(devc);
690 endpoint = devc->dslogic ? 6 : 2;
691 devc->num_transfers = num_transfers;
692 for (i = 0; i < num_transfers; i++) {
693 if (!(buf = g_try_malloc(size))) {
694 sr_err("USB transfer buffer malloc failed.");
695 return SR_ERR_MALLOC;
696 }
697 transfer = libusb_alloc_transfer(0);
698 libusb_fill_bulk_transfer(transfer, usb->devhdl,
699 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
700 fx2lafw_receive_transfer, (void *)sdi, timeout);
701 if ((ret = libusb_submit_transfer(transfer)) != 0) {
702 sr_err("Failed to submit transfer: %s.",
703 libusb_error_name(ret));
704 libusb_free_transfer(transfer);
705 g_free(buf);
706 fx2lafw_abort_acquisition(devc);
707 return SR_ERR;
708 }
709 devc->transfers[i] = transfer;
710 devc->submitted_transfers++;
711 }
712
713 /* Send header packet to the session bus. */
714 std_session_send_df_header(sdi, LOG_PREFIX);
715
716 return SR_OK;
717}
718
719static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
720{
721 const struct sr_dev_inst *sdi;
722 struct sr_datafeed_packet packet;
723 struct dslogic_trigger_pos *tpos;
724 struct dev_context *devc;
725
726 sdi = transfer->user_data;
727 devc = sdi->priv;
728 if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
729 sr_dbg("Trigger transfer canceled.");
730 /* Terminate session. */
731 packet.type = SR_DF_END;
732 sr_session_send(sdi, &packet);
733 usb_source_remove(sdi->session, devc->ctx);
734 devc->num_transfers = 0;
735 g_free(devc->transfers);
736 if (devc->stl) {
737 soft_trigger_logic_free(devc->stl);
738 devc->stl = NULL;
739 }
740 } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
741 && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
742 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
743 sr_dbg("tpos real_pos %.8x ram_saddr %.8x", tpos->real_pos, tpos->ram_saddr);
744 g_free(tpos);
745 start_transfers(sdi);
746 }
747
748 libusb_free_transfer(transfer);
749
750}
751
752static int dslogic_trigger_request(const struct sr_dev_inst *sdi)
753{
754 struct sr_usb_dev_inst *usb;
755 struct libusb_transfer *transfer;
756 struct dslogic_trigger_pos *tpos;
757 struct dev_context *devc;
758 int ret;
759
760 usb = sdi->conn;
761 devc = sdi->priv;
762
763 if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK)
764 return ret;
765
766 if ((ret = dslogic_fpga_configure(sdi)) != SR_OK)
767 return ret;
768
769 if ((ret = dslogic_start_acquisition(sdi)) != SR_OK)
770 return ret;
771
772 sr_dbg("Getting trigger.");
773 tpos = g_malloc(sizeof(struct dslogic_trigger_pos));
774 transfer = libusb_alloc_transfer(0);
775 libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN,
776 (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos),
777 dslogic_trigger_receive, (void *)sdi, 0);
778 if ((ret = libusb_submit_transfer(transfer)) < 0) {
779 sr_err("Failed to request trigger: %s.", libusb_error_name(ret));
780 libusb_free_transfer(transfer);
781 g_free(tpos);
782 return SR_ERR;
783 }
784
785 devc->transfers = g_try_malloc0(sizeof(*devc->transfers));
786 if (!devc->transfers) {
787 sr_err("USB trigger_pos transfer malloc failed.");
788 return SR_ERR_MALLOC;
789 }
790 devc->num_transfers = 1;
791 devc->submitted_transfers++;
792 devc->transfers[0] = transfer;
793
794 return ret;
795}
796
797static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
798{
799 struct sr_dev_driver *di;
800 struct drv_context *drvc;
801 struct dev_context *devc;
802 int timeout, ret;
803
804 if (sdi->status != SR_ST_ACTIVE)
805 return SR_ERR_DEV_CLOSED;
806
807 di = sdi->driver;
808 drvc = di->context;
809 devc = sdi->priv;
810
811 devc->ctx = drvc->sr_ctx;
812 devc->cb_data = cb_data;
813 devc->sent_samples = 0;
814 devc->empty_transfer_count = 0;
815 devc->acq_aborted = FALSE;
816
817 timeout = fx2lafw_get_timeout(devc);
818 usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
819
820 if (devc->dslogic) {
821 dslogic_trigger_request(sdi);
822 } else {
823 start_transfers(sdi);
824 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
825 fx2lafw_abort_acquisition(devc);
826 return ret;
827 }
828 }
829
830 return SR_OK;
831}
832
833static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
834{
835 struct dev_context *devc;
836
837 (void)cb_data;
838
839 devc = sdi->priv;
840
841 if (devc->dslogic)
842 dslogic_stop_acquisition(sdi);
843
844 fx2lafw_abort_acquisition(sdi->priv);
845
846 return SR_OK;
847}
848
849SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
850 .name = "fx2lafw",
851 .longname = "fx2lafw (generic driver for FX2 based LAs)",
852 .api_version = 1,
853 .init = init,
854 .cleanup = cleanup,
855 .scan = scan,
856 .dev_list = dev_list,
857 .dev_clear = NULL,
858 .config_get = config_get,
859 .config_set = config_set,
860 .config_list = config_list,
861 .dev_open = dev_open,
862 .dev_close = dev_close,
863 .dev_acquisition_start = dev_acquisition_start,
864 .dev_acquisition_stop = dev_acquisition_stop,
865 .context = NULL,
866};
Hardware access and backend lib