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dslogic: Implement trigger functionality
[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,
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 int32_t soft_trigger_matches[] = {
137 SR_TRIGGER_ZERO,
138 SR_TRIGGER_ONE,
139 SR_TRIGGER_RISING,
140 SR_TRIGGER_FALLING,
141 SR_TRIGGER_EDGE,
142};
143
144static const uint64_t samplerates[] = {
145 SR_KHZ(20),
146 SR_KHZ(25),
147 SR_KHZ(50),
148 SR_KHZ(100),
149 SR_KHZ(200),
150 SR_KHZ(250),
151 SR_KHZ(500),
152 SR_MHZ(1),
153 SR_MHZ(2),
154 SR_MHZ(3),
155 SR_MHZ(4),
156 SR_MHZ(6),
157 SR_MHZ(8),
158 SR_MHZ(12),
159 SR_MHZ(16),
160 SR_MHZ(24),
161};
162
163static const uint64_t dslogic_samplerates[] = {
164 SR_KHZ(10),
165 SR_KHZ(20),
166 SR_KHZ(50),
167 SR_KHZ(100),
168 SR_KHZ(200),
169 SR_KHZ(500),
170 SR_MHZ(1),
171 SR_MHZ(2),
172 SR_MHZ(5),
173 SR_MHZ(10),
174 SR_MHZ(20),
175 SR_MHZ(25),
176 SR_MHZ(50),
177 SR_MHZ(100),
178 SR_MHZ(200),
179 SR_MHZ(400),
180};
181
182SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
183
184static GSList *scan(struct sr_dev_driver *di, GSList *options)
185{
186 struct drv_context *drvc;
187 struct dev_context *devc;
188 struct sr_dev_inst *sdi;
189 struct sr_usb_dev_inst *usb;
190 struct sr_channel *ch;
191 struct sr_channel_group *cg;
192 struct sr_config *src;
193 const struct fx2lafw_profile *prof;
194 GSList *l, *devices, *conn_devices;
195 gboolean has_firmware;
196 struct libusb_device_descriptor des;
197 libusb_device **devlist;
198 struct libusb_device_handle *hdl;
199 int ret, i, j;
200 int num_logic_channels = 0, num_analog_channels = 0;
201 const char *conn;
202 char manufacturer[64], product[64], serial_num[64], connection_id[64];
203 char channel_name[16];
204
205 drvc = di->context;
206
207 conn = NULL;
208 for (l = options; l; l = l->next) {
209 src = l->data;
210 switch (src->key) {
211 case SR_CONF_CONN:
212 conn = g_variant_get_string(src->data, NULL);
213 break;
214 }
215 }
216 if (conn)
217 conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn);
218 else
219 conn_devices = NULL;
220
221 /* Find all fx2lafw compatible devices and upload firmware to them. */
222 devices = NULL;
223 libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
224 for (i = 0; devlist[i]; i++) {
225 if (conn) {
226 usb = NULL;
227 for (l = conn_devices; l; l = l->next) {
228 usb = l->data;
229 if (usb->bus == libusb_get_bus_number(devlist[i])
230 && usb->address == libusb_get_device_address(devlist[i]))
231 break;
232 }
233 if (!l)
234 /* This device matched none of the ones that
235 * matched the conn specification. */
236 continue;
237 }
238
239 libusb_get_device_descriptor( devlist[i], &des);
240
241 if ((ret = libusb_open(devlist[i], &hdl)) < 0)
242 continue;
243
244 if (des.iManufacturer == 0) {
245 manufacturer[0] = '\0';
246 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
247 des.iManufacturer, (unsigned char *) manufacturer,
248 sizeof(manufacturer))) < 0) {
249 sr_warn("Failed to get manufacturer string descriptor: %s.",
250 libusb_error_name(ret));
251 continue;
252 }
253
254 if (des.iProduct == 0) {
255 product[0] = '\0';
256 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
257 des.iProduct, (unsigned char *) product,
258 sizeof(product))) < 0) {
259 sr_warn("Failed to get product string descriptor: %s.",
260 libusb_error_name(ret));
261 continue;
262 }
263
264 if (des.iSerialNumber == 0) {
265 serial_num[0] = '\0';
266 } else if ((ret = libusb_get_string_descriptor_ascii(hdl,
267 des.iSerialNumber, (unsigned char *) serial_num,
268 sizeof(serial_num))) < 0) {
269 sr_warn("Failed to get serial number string descriptor: %s.",
270 libusb_error_name(ret));
271 continue;
272 }
273
274 usb_get_port_path(devlist[i], connection_id, sizeof(connection_id));
275
276 libusb_close(hdl);
277
278 prof = NULL;
279 for (j = 0; supported_fx2[j].vid; j++) {
280 if (des.idVendor == supported_fx2[j].vid &&
281 des.idProduct == supported_fx2[j].pid &&
282 (!supported_fx2[j].usb_manufacturer ||
283 !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) &&
284 (!supported_fx2[j].usb_manufacturer ||
285 !strcmp(product, supported_fx2[j].usb_product))) {
286 prof = &supported_fx2[j];
287 break;
288 }
289 }
290
291 /* Skip if the device was not found. */
292 if (!prof)
293 continue;
294
295 sdi = g_malloc0(sizeof(struct sr_dev_inst));
296 sdi->status = SR_ST_INITIALIZING;
297 sdi->vendor = g_strdup(prof->vendor);
298 sdi->model = g_strdup(prof->model);
299 sdi->version = g_strdup(prof->model_version);
300 sdi->driver = di;
301 sdi->serial_num = g_strdup(serial_num);
302 sdi->connection_id = g_strdup(connection_id);
303
304 /* Fill in channellist according to this device's profile. */
305 num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8;
306 num_analog_channels = prof->dev_caps & DEV_CAPS_AX_ANALOG ? 1 : 0;
307
308 /* Logic channels, all in one channel group. */
309 cg = g_malloc0(sizeof(struct sr_channel_group));
310 cg->name = g_strdup("Logic");
311 for (j = 0; j < num_logic_channels; j++) {
312 sprintf(channel_name, "D%d", j);
313 ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC,
314 TRUE, channel_name);
315 cg->channels = g_slist_append(cg->channels, ch);
316 }
317 sdi->channel_groups = g_slist_append(NULL, cg);
318
319 for (j = 0; j < num_analog_channels; j++) {
320 snprintf(channel_name, 16, "A%d", j);
321 ch = sr_channel_new(sdi, j + num_logic_channels,
322 SR_CHANNEL_ANALOG, TRUE, channel_name);
323
324 /* Every analog channel gets its own channel group. */
325 cg = g_malloc0(sizeof(struct sr_channel_group));
326 cg->name = g_strdup(channel_name);
327 cg->channels = g_slist_append(NULL, ch);
328 sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
329 }
330
331 devc = fx2lafw_dev_new();
332 devc->profile = prof;
333 if ((prof->dev_caps & DEV_CAPS_16BIT) || (prof->dev_caps & DEV_CAPS_AX_ANALOG))
334 devc->sample_wide = TRUE;
335 sdi->priv = devc;
336 drvc->instances = g_slist_append(drvc->instances, sdi);
337 devices = g_slist_append(devices, sdi);
338
339 if (!strcmp(prof->model, "DSLogic")
340 || !strcmp(prof->model, "DSLogic Pro")
341 || !strcmp(prof->model, "DSCope")) {
342 devc->dslogic = TRUE;
343 devc->samplerates = dslogic_samplerates;
344 devc->num_samplerates = ARRAY_SIZE(dslogic_samplerates);
345 has_firmware = match_manuf_prod(devlist[i], "DreamSourceLab", "DSLogic")
346 || match_manuf_prod(devlist[i], "DreamSourceLab", "DSCope");
347 } else {
348 devc->dslogic = FALSE;
349 devc->samplerates = samplerates;
350 devc->num_samplerates = ARRAY_SIZE(samplerates);
351 has_firmware = match_manuf_prod(devlist[i],
352 "sigrok", "fx2lafw");
353 }
354
355 if (has_firmware) {
356 /* Already has the firmware, so fix the new address. */
357 sr_dbg("Found an fx2lafw device.");
358 sdi->status = SR_ST_INACTIVE;
359 sdi->inst_type = SR_INST_USB;
360 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
361 libusb_get_device_address(devlist[i]), NULL);
362 } else {
363 if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i],
364 USB_CONFIGURATION, prof->firmware) == SR_OK)
365 /* Store when this device's FW was updated. */
366 devc->fw_updated = g_get_monotonic_time();
367 else
368 sr_err("Firmware upload failed for "
369 "device %d.%d (logical).",
370 libusb_get_bus_number(devlist[i]),
371 libusb_get_device_address(devlist[i]));
372 sdi->inst_type = SR_INST_USB;
373 sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]),
374 0xff, NULL);
375 }
376 }
377 libusb_free_device_list(devlist, 1);
378 g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free);
379
380 return devices;
381}
382
383static void clear_dev_context(void *priv)
384{
385 struct dev_context *devc;
386
387 devc = priv;
388 g_slist_free(devc->enabled_analog_channels);
389 g_free(devc);
390}
391
392static int dev_clear(const struct sr_dev_driver *di)
393{
394 return std_dev_clear(di, clear_dev_context);
395}
396
397static int dev_open(struct sr_dev_inst *sdi)
398{
399 struct sr_dev_driver *di = sdi->driver;
400 struct sr_usb_dev_inst *usb;
401 struct dev_context *devc;
402 const char *fpga_firmware = NULL;
403 int ret;
404 int64_t timediff_us, timediff_ms;
405
406 devc = sdi->priv;
407 usb = sdi->conn;
408
409 /*
410 * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS
411 * milliseconds for the FX2 to renumerate.
412 */
413 ret = SR_ERR;
414 if (devc->fw_updated > 0) {
415 sr_info("Waiting for device to reset.");
416 /* Takes >= 300ms for the FX2 to be gone from the USB bus. */
417 g_usleep(300 * 1000);
418 timediff_ms = 0;
419 while (timediff_ms < MAX_RENUM_DELAY_MS) {
420 if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK)
421 break;
422 g_usleep(100 * 1000);
423
424 timediff_us = g_get_monotonic_time() - devc->fw_updated;
425 timediff_ms = timediff_us / 1000;
426 sr_spew("Waited %" PRIi64 "ms.", timediff_ms);
427 }
428 if (ret != SR_OK) {
429 sr_err("Device failed to renumerate.");
430 return SR_ERR;
431 }
432 sr_info("Device came back after %" PRIi64 "ms.", timediff_ms);
433 } else {
434 sr_info("Firmware upload was not needed.");
435 ret = fx2lafw_dev_open(sdi, di);
436 }
437
438 if (ret != SR_OK) {
439 sr_err("Unable to open device.");
440 return SR_ERR;
441 }
442
443 ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE);
444 if (ret != 0) {
445 switch (ret) {
446 case LIBUSB_ERROR_BUSY:
447 sr_err("Unable to claim USB interface. Another "
448 "program or driver has already claimed it.");
449 break;
450 case LIBUSB_ERROR_NO_DEVICE:
451 sr_err("Device has been disconnected.");
452 break;
453 default:
454 sr_err("Unable to claim interface: %s.",
455 libusb_error_name(ret));
456 break;
457 }
458
459 return SR_ERR;
460 }
461
462 if (devc->dslogic) {
463 if (!strcmp(devc->profile->model, "DSLogic")) {
464 fpga_firmware = DSLOGIC_FPGA_FIRMWARE;
465 } else if (!strcmp(devc->profile->model, "DSLogic Pro")) {
466 fpga_firmware = DSLOGIC_PRO_FPGA_FIRMWARE;
467 } else if (!strcmp(devc->profile->model, "DSCope")) {
468 fpga_firmware = DSCOPE_FPGA_FIRMWARE;
469 }
470
471 if ((ret = dslogic_fpga_firmware_upload(sdi,
472 fpga_firmware)) != SR_OK)
473 return ret;
474 }
475
476 if (devc->cur_samplerate == 0) {
477 /* Samplerate hasn't been set; default to the slowest one. */
478 devc->cur_samplerate = devc->samplerates[0];
479 }
480
481 return SR_OK;
482}
483
484static int dev_close(struct sr_dev_inst *sdi)
485{
486 struct sr_usb_dev_inst *usb;
487
488 usb = sdi->conn;
489 if (!usb->devhdl)
490 return SR_ERR;
491
492 sr_info("fx2lafw: Closing device on %d.%d (logical) / %s (physical) interface %d.",
493 usb->bus, usb->address, sdi->connection_id, USB_INTERFACE);
494 libusb_release_interface(usb->devhdl, USB_INTERFACE);
495 libusb_close(usb->devhdl);
496 usb->devhdl = NULL;
497 sdi->status = SR_ST_INACTIVE;
498
499 return SR_OK;
500}
501
502static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
503 const struct sr_channel_group *cg)
504{
505 struct dev_context *devc;
506 struct sr_usb_dev_inst *usb;
507 char str[128];
508
509 (void)cg;
510
511 if (!sdi)
512 return SR_ERR_ARG;
513
514 devc = sdi->priv;
515
516 switch (key) {
517 case SR_CONF_CONN:
518 if (!sdi->conn)
519 return SR_ERR_ARG;
520 usb = sdi->conn;
521 if (usb->address == 255)
522 /* Device still needs to re-enumerate after firmware
523 * upload, so we don't know its (future) address. */
524 return SR_ERR;
525 snprintf(str, 128, "%d.%d", usb->bus, usb->address);
526 *data = g_variant_new_string(str);
527 break;
528 case SR_CONF_LIMIT_SAMPLES:
529 *data = g_variant_new_uint64(devc->limit_samples);
530 break;
531 case SR_CONF_SAMPLERATE:
532 *data = g_variant_new_uint64(devc->cur_samplerate);
533 break;
534 case SR_CONF_CAPTURE_RATIO:
535 *data = g_variant_new_uint64(devc->capture_ratio);
536 break;
537 default:
538 return SR_ERR_NA;
539 }
540
541 return SR_OK;
542}
543
544static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
545 const struct sr_channel_group *cg)
546{
547 struct dev_context *devc;
548 uint64_t arg;
549 int i, ret;
550
551 (void)cg;
552
553 if (!sdi)
554 return SR_ERR_ARG;
555
556 if (sdi->status != SR_ST_ACTIVE)
557 return SR_ERR;
558
559 devc = sdi->priv;
560
561 ret = SR_OK;
562
563 switch (key) {
564 case SR_CONF_SAMPLERATE:
565 arg = g_variant_get_uint64(data);
566 for (i = 0; i < devc->num_samplerates; i++) {
567 if (devc->samplerates[i] == arg) {
568 devc->cur_samplerate = arg;
569 break;
570 }
571 }
572 if (i == devc->num_samplerates)
573 ret = SR_ERR_ARG;
574 break;
575 case SR_CONF_LIMIT_SAMPLES:
576 devc->limit_samples = g_variant_get_uint64(data);
577 break;
578 case SR_CONF_CAPTURE_RATIO:
579 devc->capture_ratio = g_variant_get_uint64(data);
580 ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK;
581 break;
582 default:
583 ret = SR_ERR_NA;
584 }
585
586 return ret;
587}
588
589static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
590 const struct sr_channel_group *cg)
591{
592 struct dev_context *devc;
593 GVariant *gvar;
594 GVariantBuilder gvb;
595
596 (void)cg;
597
598 switch (key) {
599 case SR_CONF_SCAN_OPTIONS:
600 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
601 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
602 break;
603 case SR_CONF_DEVICE_OPTIONS:
604 if (!sdi)
605 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
606 drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
607 else
608 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
609 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
610 break;
611 case SR_CONF_SAMPLERATE:
612 if (!sdi->priv)
613 return SR_ERR_ARG;
614 devc = sdi->priv;
615 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
616 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates,
617 devc->num_samplerates, sizeof(uint64_t));
618 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
619 *data = g_variant_builder_end(&gvb);
620 break;
621 case SR_CONF_TRIGGER_MATCH:
622 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
623 soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches),
624 sizeof(int32_t));
625 break;
626 default:
627 return SR_ERR_NA;
628 }
629
630 return SR_OK;
631}
632
633static int receive_data(int fd, int revents, void *cb_data)
634{
635 struct timeval tv;
636 struct drv_context *drvc;
637
638 (void)fd;
639 (void)revents;
640
641 drvc = (struct drv_context *)cb_data;
642
643 tv.tv_sec = tv.tv_usec = 0;
644 libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
645
646 return TRUE;
647}
648
649static int start_transfers(const struct sr_dev_inst *sdi)
650{
651 struct dev_context *devc;
652 struct sr_usb_dev_inst *usb;
653 struct sr_trigger *trigger;
654 struct libusb_transfer *transfer;
655 unsigned int i, num_transfers;
656 int endpoint, timeout, ret;
657 unsigned char *buf;
658 size_t size;
659
660 devc = sdi->priv;
661 usb = sdi->conn;
662
663 devc->sent_samples = 0;
664 devc->acq_aborted = FALSE;
665 devc->empty_transfer_count = 0;
666
667 if ((trigger = sr_session_trigger_get(sdi->session)) && !devc->dslogic) {
668 int pre_trigger_samples = 0;
669 if (devc->limit_samples > 0)
670 pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100;
671 devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples);
672 if (!devc->stl)
673 return SR_ERR_MALLOC;
674 devc->trigger_fired = FALSE;
675 } else
676 devc->trigger_fired = TRUE;
677
678 num_transfers = fx2lafw_get_number_of_transfers(devc);
679 size = fx2lafw_get_buffer_size(devc);
680 devc->submitted_transfers = 0;
681
682 devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers);
683 if (!devc->transfers) {
684 sr_err("USB transfers malloc failed.");
685 return SR_ERR_MALLOC;
686 }
687
688 timeout = fx2lafw_get_timeout(devc);
689 endpoint = devc->dslogic ? 6 : 2;
690 devc->num_transfers = num_transfers;
691 for (i = 0; i < num_transfers; i++) {
692 if (!(buf = g_try_malloc(size))) {
693 sr_err("USB transfer buffer malloc failed.");
694 return SR_ERR_MALLOC;
695 }
696 transfer = libusb_alloc_transfer(0);
697 libusb_fill_bulk_transfer(transfer, usb->devhdl,
698 endpoint | LIBUSB_ENDPOINT_IN, buf, size,
699 fx2lafw_receive_transfer, (void *)sdi, timeout);
700 if ((ret = libusb_submit_transfer(transfer)) != 0) {
701 sr_err("Failed to submit transfer: %s.",
702 libusb_error_name(ret));
703 libusb_free_transfer(transfer);
704 g_free(buf);
705 fx2lafw_abort_acquisition(devc);
706 return SR_ERR;
707 }
708 devc->transfers[i] = transfer;
709 devc->submitted_transfers++;
710 }
711
712 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG)
713 devc->send_data_proc = mso_send_data_proc;
714 else
715 devc->send_data_proc = la_send_data_proc;
716
717 std_session_send_df_header(sdi, LOG_PREFIX);
718
719 return SR_OK;
720}
721
722static void LIBUSB_CALL dslogic_trigger_receive(struct libusb_transfer *transfer)
723{
724 const struct sr_dev_inst *sdi;
725 struct dslogic_trigger_pos *tpos;
726 struct dev_context *devc;
727
728 sdi = transfer->user_data;
729 devc = sdi->priv;
730 if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
731 sr_dbg("Trigger transfer canceled.");
732 /* Terminate session. */
733 std_session_send_df_end(sdi, LOG_PREFIX);
734 usb_source_remove(sdi->session, devc->ctx);
735 devc->num_transfers = 0;
736 g_free(devc->transfers);
737 if (devc->stl) {
738 soft_trigger_logic_free(devc->stl);
739 devc->stl = NULL;
740 }
741 } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED
742 && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) {
743 tpos = (struct dslogic_trigger_pos *)transfer->buffer;
744 sr_info("tpos real_pos %d ram_saddr %d", tpos->real_pos, tpos->ram_saddr);
745 devc->trigger_pos = tpos->real_pos;
746 g_free(tpos);
747 start_transfers(sdi);
748 }
749 libusb_free_transfer(transfer);
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 configure_channels(const struct sr_dev_inst *sdi)
798{
799 struct dev_context *devc;
800 const GSList *l;
801 int p;
802 struct sr_channel *ch;
803
804 devc = sdi->priv;
805
806 g_slist_free(devc->enabled_analog_channels);
807 devc->enabled_analog_channels = NULL;
808 memset(devc->ch_enabled, 0, sizeof(devc->ch_enabled));
809
810 for (l = sdi->channels, p = 0; l; l = l->next, p++) {
811 ch = l->data;
812 if ((p <= NUM_CHANNELS) && (ch->type == SR_CHANNEL_ANALOG)) {
813 devc->ch_enabled[p] = ch->enabled;
814 devc->enabled_analog_channels =
815 g_slist_append(devc->enabled_analog_channels, ch);
816 }
817 }
818
819 return SR_OK;
820}
821
822static int dev_acquisition_start(const struct sr_dev_inst *sdi)
823{
824 struct sr_dev_driver *di;
825 struct drv_context *drvc;
826 struct dev_context *devc;
827 int timeout, ret;
828 size_t size;
829
830 if (sdi->status != SR_ST_ACTIVE)
831 return SR_ERR_DEV_CLOSED;
832
833 di = sdi->driver;
834 drvc = di->context;
835 devc = sdi->priv;
836
837 devc->ctx = drvc->sr_ctx;
838 devc->sent_samples = 0;
839 devc->empty_transfer_count = 0;
840 devc->acq_aborted = FALSE;
841
842 if (configure_channels(sdi) != SR_OK) {
843 sr_err("Failed to configure channels.");
844 return SR_ERR;
845 }
846
847 timeout = fx2lafw_get_timeout(devc);
848 usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc);
849
850 if (devc->dslogic) {
851 dslogic_trigger_request(sdi);
852 } else {
853 size = fx2lafw_get_buffer_size(devc);
854 /* Prepare for analog sampling. */
855 if (devc->profile->dev_caps & DEV_CAPS_AX_ANALOG) {
856 /* We need a buffer half the size of a transfer. */
857 devc->logic_buffer = g_try_malloc(size / 2);
858 devc->analog_buffer = g_try_malloc(
859 sizeof(float) * size / 2);
860 }
861 start_transfers(sdi);
862 if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) {
863 fx2lafw_abort_acquisition(devc);
864 return ret;
865 }
866 }
867
868 return SR_OK;
869}
870
871static int dev_acquisition_stop(struct sr_dev_inst *sdi)
872{
873 struct dev_context *devc;
874
875 devc = sdi->priv;
876
877 if (devc->dslogic)
878 dslogic_stop_acquisition(sdi);
879
880 fx2lafw_abort_acquisition(sdi->priv);
881
882 return SR_OK;
883}
884
885SR_PRIV struct sr_dev_driver fx2lafw_driver_info = {
886 .name = "fx2lafw",
887 .longname = "fx2lafw (generic driver for FX2 based LAs)",
888 .api_version = 1,
889 .init = std_init,
890 .cleanup = std_cleanup,
891 .scan = scan,
892 .dev_list = std_dev_list,
893 .dev_clear = dev_clear,
894 .config_get = config_get,
895 .config_set = config_set,
896 .config_list = config_list,
897 .dev_open = dev_open,
898 .dev_close = dev_close,
899 .dev_acquisition_start = dev_acquisition_start,
900 .dev_acquisition_stop = dev_acquisition_stop,
901 .context = NULL,
902};
Hardware access and backend lib