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adcb9951 JH |
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 | ||
26 | static const struct dslogic_profile supported_device[] = { | |
6c317a8d | 27 | /* DreamSourceLab DSLogic */ |
adcb9951 JH |
28 | { 0x2a0e, 0x0001, "DreamSourceLab", "DSLogic", NULL, |
29 | "dreamsourcelab-dslogic-fx2.fw", | |
30 | 0, "DreamSourceLab", "DSLogic"}, | |
6c317a8d | 31 | /* DreamSourceLab DSCope */ |
adcb9951 JH |
32 | { 0x2a0e, 0x0002, "DreamSourceLab", "DSCope", NULL, |
33 | "dreamsourcelab-dscope-fx2.fw", | |
34 | 0, "DreamSourceLab", "DSCope"}, | |
6c317a8d | 35 | /* DreamSourceLab DSLogic Pro */ |
adcb9951 JH |
36 | { 0x2a0e, 0x0003, "DreamSourceLab", "DSLogic Pro", NULL, |
37 | "dreamsourcelab-dslogic-pro-fx2.fw", | |
38 | 0, "DreamSourceLab", "DSLogic"}, | |
6c317a8d | 39 | /* DreamSourceLab DSLogic Plus */ |
adcb9951 JH |
40 | { 0x2a0e, 0x0020, "DreamSourceLab", "DSLogic Plus", NULL, |
41 | "dreamsourcelab-dslogic-plus-fx2.fw", | |
42 | 0, "DreamSourceLab", "DSLogic"}, | |
6c317a8d | 43 | /* DreamSourceLab DSLogic Basic */ |
adcb9951 JH |
44 | { 0x2a0e, 0x0021, "DreamSourceLab", "DSLogic Basic", NULL, |
45 | "dreamsourcelab-dslogic-basic-fx2.fw", | |
46 | 0, "DreamSourceLab", "DSLogic"}, | |
47 | ||
48 | ALL_ZERO | |
49 | }; | |
50 | ||
51 | static const uint32_t drvopts[] = { | |
52 | SR_CONF_LOGIC_ANALYZER, | |
53 | }; | |
54 | ||
55 | static const uint32_t scanopts[] = { | |
56 | SR_CONF_CONN, | |
57 | }; | |
58 | ||
59 | static const uint32_t devopts[] = { | |
60 | SR_CONF_CONTINUOUS | SR_CONF_SET | SR_CONF_GET, | |
61 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
62 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
63 | SR_CONF_CONN | SR_CONF_GET, | |
64 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
65 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
66 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
67 | SR_CONF_EXTERNAL_CLOCK | SR_CONF_GET | SR_CONF_SET, | |
68 | SR_CONF_CLOCK_EDGE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
69 | }; | |
70 | ||
71 | /* Names assigned to available edge slope choices. */ | |
72 | static const char *const signal_edge_names[] = { | |
73 | [DS_EDGE_RISING] = "rising", | |
74 | [DS_EDGE_FALLING] = "falling", | |
75 | }; | |
76 | ||
77 | static const struct { | |
78 | int range; | |
79 | gdouble low; | |
80 | gdouble high; | |
81 | } volt_thresholds[] = { | |
82 | { DS_VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
83 | { DS_VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
84 | }; | |
85 | ||
86 | static const uint64_t samplerates[] = { | |
87 | SR_KHZ(10), | |
88 | SR_KHZ(20), | |
89 | SR_KHZ(50), | |
90 | SR_KHZ(100), | |
91 | SR_KHZ(200), | |
92 | SR_KHZ(500), | |
93 | SR_MHZ(1), | |
94 | SR_MHZ(2), | |
95 | SR_MHZ(5), | |
96 | SR_MHZ(10), | |
97 | SR_MHZ(20), | |
98 | SR_MHZ(25), | |
99 | SR_MHZ(50), | |
100 | SR_MHZ(100), | |
101 | SR_MHZ(200), | |
102 | SR_MHZ(400), | |
103 | }; | |
104 | ||
105 | static gboolean is_plausible(const struct libusb_device_descriptor *des) | |
106 | { | |
107 | int i; | |
108 | ||
109 | for (i = 0; supported_device[i].vid; i++) { | |
110 | if (des->idVendor != supported_device[i].vid) | |
111 | continue; | |
112 | if (des->idProduct == supported_device[i].pid) | |
113 | return TRUE; | |
114 | } | |
115 | ||
116 | return FALSE; | |
117 | } | |
118 | ||
119 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
120 | { | |
121 | struct drv_context *drvc; | |
122 | struct dev_context *devc; | |
123 | struct sr_dev_inst *sdi; | |
124 | struct sr_usb_dev_inst *usb; | |
125 | struct sr_channel *ch; | |
126 | struct sr_channel_group *cg; | |
127 | struct sr_config *src; | |
128 | const struct dslogic_profile *prof; | |
129 | GSList *l, *devices, *conn_devices; | |
130 | gboolean has_firmware; | |
131 | struct libusb_device_descriptor des; | |
132 | libusb_device **devlist; | |
133 | struct libusb_device_handle *hdl; | |
134 | int ret, i, j; | |
135 | const char *conn; | |
136 | char manufacturer[64], product[64], serial_num[64], connection_id[64]; | |
137 | char channel_name[16]; | |
138 | ||
139 | drvc = di->context; | |
140 | ||
141 | conn = NULL; | |
142 | for (l = options; l; l = l->next) { | |
143 | src = l->data; | |
144 | switch (src->key) { | |
145 | case SR_CONF_CONN: | |
146 | conn = g_variant_get_string(src->data, NULL); | |
147 | break; | |
148 | } | |
149 | } | |
150 | if (conn) | |
151 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
152 | else | |
153 | conn_devices = NULL; | |
154 | ||
155 | /* Find all dslogic compatible devices and upload firmware to them. */ | |
156 | devices = NULL; | |
157 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
158 | for (i = 0; devlist[i]; i++) { | |
159 | if (conn) { | |
160 | usb = NULL; | |
161 | for (l = conn_devices; l; l = l->next) { | |
162 | usb = l->data; | |
163 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
164 | && usb->address == libusb_get_device_address(devlist[i])) | |
165 | break; | |
166 | } | |
167 | if (!l) | |
168 | /* This device matched none of the ones that | |
169 | * matched the conn specification. */ | |
170 | continue; | |
171 | } | |
172 | ||
173 | libusb_get_device_descriptor( devlist[i], &des); | |
174 | ||
175 | if (!is_plausible(&des)) | |
176 | continue; | |
177 | ||
178 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) { | |
179 | sr_warn("Failed to open potential device with " | |
180 | "VID:PID %04x:%04x: %s.", des.idVendor, | |
181 | des.idProduct, libusb_error_name(ret)); | |
182 | continue; | |
183 | } | |
184 | ||
185 | if (des.iManufacturer == 0) { | |
186 | manufacturer[0] = '\0'; | |
187 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
188 | des.iManufacturer, (unsigned char *) manufacturer, | |
189 | sizeof(manufacturer))) < 0) { | |
190 | sr_warn("Failed to get manufacturer string descriptor: %s.", | |
191 | libusb_error_name(ret)); | |
192 | continue; | |
193 | } | |
194 | ||
195 | if (des.iProduct == 0) { | |
196 | product[0] = '\0'; | |
197 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
198 | des.iProduct, (unsigned char *) product, | |
199 | sizeof(product))) < 0) { | |
200 | sr_warn("Failed to get product string descriptor: %s.", | |
201 | libusb_error_name(ret)); | |
202 | continue; | |
203 | } | |
204 | ||
205 | if (des.iSerialNumber == 0) { | |
206 | serial_num[0] = '\0'; | |
207 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
208 | des.iSerialNumber, (unsigned char *) serial_num, | |
209 | sizeof(serial_num))) < 0) { | |
210 | sr_warn("Failed to get serial number string descriptor: %s.", | |
211 | libusb_error_name(ret)); | |
212 | continue; | |
213 | } | |
214 | ||
215 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
216 | ||
217 | libusb_close(hdl); | |
218 | ||
219 | prof = NULL; | |
220 | for (j = 0; supported_device[j].vid; j++) { | |
221 | if (des.idVendor == supported_device[j].vid && | |
222 | des.idProduct == supported_device[j].pid && | |
6c317a8d JH |
223 | (!strcmp(manufacturer, supported_device[j].usb_manufacturer)) && |
224 | (!strcmp(product, "USB-based Instrument") || | |
225 | !strcmp(product, supported_device[j].usb_product))) { | |
adcb9951 JH |
226 | prof = &supported_device[j]; |
227 | break; | |
228 | } | |
229 | } | |
230 | ||
231 | /* Skip if the device was not found. */ | |
232 | if (!prof) | |
233 | continue; | |
234 | ||
235 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
236 | sdi->status = SR_ST_INITIALIZING; | |
237 | sdi->vendor = g_strdup(prof->vendor); | |
238 | sdi->model = g_strdup(prof->model); | |
239 | sdi->version = g_strdup(prof->model_version); | |
240 | sdi->serial_num = g_strdup(serial_num); | |
241 | sdi->connection_id = g_strdup(connection_id); | |
242 | ||
243 | /* Logic channels, all in one channel group. */ | |
244 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
245 | cg->name = g_strdup("Logic"); | |
246 | for (j = 0; j < 16; j++) { | |
84f6d40a | 247 | sprintf(channel_name, "%d", j); |
adcb9951 JH |
248 | ch = sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, |
249 | TRUE, channel_name); | |
250 | cg->channels = g_slist_append(cg->channels, ch); | |
251 | } | |
252 | sdi->channel_groups = g_slist_append(NULL, cg); | |
253 | ||
254 | devc = dslogic_dev_new(); | |
255 | devc->profile = prof; | |
256 | sdi->priv = devc; | |
257 | devices = g_slist_append(devices, sdi); | |
258 | ||
259 | devc->samplerates = samplerates; | |
260 | devc->num_samplerates = ARRAY_SIZE(samplerates); | |
3c749da1 | 261 | has_firmware = usb_match_manuf_prod(devlist[i], "DreamSourceLab", "USB-based Instrument"); |
adcb9951 JH |
262 | |
263 | if (has_firmware) { | |
264 | /* Already has the firmware, so fix the new address. */ | |
265 | sr_dbg("Found an dslogic device."); | |
266 | sdi->status = SR_ST_INACTIVE; | |
267 | sdi->inst_type = SR_INST_USB; | |
268 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
269 | libusb_get_device_address(devlist[i]), NULL); | |
270 | } else { | |
271 | if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i], | |
272 | USB_CONFIGURATION, prof->firmware) == SR_OK) | |
273 | /* Store when this device's FW was updated. */ | |
274 | devc->fw_updated = g_get_monotonic_time(); | |
275 | else | |
276 | sr_err("Firmware upload failed for " | |
277 | "device %d.%d (logical).", | |
278 | libusb_get_bus_number(devlist[i]), | |
279 | libusb_get_device_address(devlist[i])); | |
280 | sdi->inst_type = SR_INST_USB; | |
281 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
282 | 0xff, NULL); | |
283 | } | |
284 | } | |
285 | libusb_free_device_list(devlist, 1); | |
286 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); | |
287 | ||
288 | return std_scan_complete(di, devices); | |
289 | } | |
290 | ||
291 | static void clear_dev_context(void *priv) | |
292 | { | |
293 | struct dev_context *devc; | |
294 | ||
295 | devc = priv; | |
296 | g_free(devc); | |
297 | } | |
298 | ||
299 | static int dev_clear(const struct sr_dev_driver *di) | |
300 | { | |
301 | return std_dev_clear(di, clear_dev_context); | |
302 | } | |
303 | ||
304 | static int dev_open(struct sr_dev_inst *sdi) | |
305 | { | |
306 | struct sr_dev_driver *di = sdi->driver; | |
307 | struct sr_usb_dev_inst *usb; | |
308 | struct dev_context *devc; | |
adcb9951 JH |
309 | int ret; |
310 | int64_t timediff_us, timediff_ms; | |
311 | ||
312 | devc = sdi->priv; | |
313 | usb = sdi->conn; | |
314 | ||
315 | /* | |
316 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
317 | * milliseconds for the FX2 to renumerate. | |
318 | */ | |
319 | ret = SR_ERR; | |
320 | if (devc->fw_updated > 0) { | |
321 | sr_info("Waiting for device to reset."); | |
322 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
323 | g_usleep(300 * 1000); | |
324 | timediff_ms = 0; | |
325 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
326 | if ((ret = dslogic_dev_open(sdi, di)) == SR_OK) | |
327 | break; | |
328 | g_usleep(100 * 1000); | |
329 | ||
330 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
331 | timediff_ms = timediff_us / 1000; | |
332 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
333 | } | |
334 | if (ret != SR_OK) { | |
335 | sr_err("Device failed to renumerate."); | |
336 | return SR_ERR; | |
337 | } | |
338 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
339 | } else { | |
340 | sr_info("Firmware upload was not needed."); | |
341 | ret = dslogic_dev_open(sdi, di); | |
342 | } | |
343 | ||
344 | if (ret != SR_OK) { | |
345 | sr_err("Unable to open device."); | |
346 | return SR_ERR; | |
347 | } | |
348 | ||
349 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
350 | if (ret != 0) { | |
351 | switch (ret) { | |
352 | case LIBUSB_ERROR_BUSY: | |
353 | sr_err("Unable to claim USB interface. Another " | |
354 | "program or driver has already claimed it."); | |
355 | break; | |
356 | case LIBUSB_ERROR_NO_DEVICE: | |
357 | sr_err("Device has been disconnected."); | |
358 | break; | |
359 | default: | |
360 | sr_err("Unable to claim interface: %s.", | |
361 | libusb_error_name(ret)); | |
362 | break; | |
363 | } | |
364 | ||
365 | return SR_ERR; | |
366 | } | |
367 | ||
adcb9951 | 368 | |
3566348b | 369 | if ((ret = dslogic_fpga_firmware_upload(sdi)) != SR_OK) |
adcb9951 JH |
370 | return ret; |
371 | ||
372 | if (devc->cur_samplerate == 0) { | |
373 | /* Samplerate hasn't been set; default to the slowest one. */ | |
374 | devc->cur_samplerate = devc->samplerates[0]; | |
375 | } | |
376 | ||
377 | return SR_OK; | |
378 | } | |
379 | ||
380 | static int dev_close(struct sr_dev_inst *sdi) | |
381 | { | |
382 | struct sr_usb_dev_inst *usb; | |
383 | ||
384 | usb = sdi->conn; | |
385 | ||
386 | if (!usb->devhdl) | |
387 | return SR_ERR; | |
388 | ||
389 | sr_info("dslogic: Closing device on %d.%d (logical) / %s (physical) interface %d.", | |
390 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
391 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
392 | libusb_close(usb->devhdl); | |
393 | usb->devhdl = NULL; | |
394 | sdi->status = SR_ST_INACTIVE; | |
395 | ||
396 | return SR_OK; | |
397 | } | |
398 | ||
399 | static int config_get(uint32_t key, GVariant **data, | |
400 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
401 | { | |
402 | struct dev_context *devc; | |
403 | struct sr_usb_dev_inst *usb; | |
404 | GVariant *range[2]; | |
405 | unsigned int i; | |
406 | char str[128]; | |
407 | ||
408 | (void)cg; | |
409 | ||
410 | if (!sdi) | |
411 | return SR_ERR_ARG; | |
412 | ||
413 | devc = sdi->priv; | |
414 | ||
415 | switch (key) { | |
416 | case SR_CONF_CONN: | |
417 | if (!sdi->conn) | |
418 | return SR_ERR_ARG; | |
419 | usb = sdi->conn; | |
420 | if (usb->address == 255) | |
421 | /* Device still needs to re-enumerate after firmware | |
422 | * upload, so we don't know its (future) address. */ | |
423 | return SR_ERR; | |
424 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
425 | *data = g_variant_new_string(str); | |
426 | break; | |
427 | case SR_CONF_VOLTAGE_THRESHOLD: | |
428 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
429 | if (volt_thresholds[i].range != devc->voltage_threshold) | |
430 | continue; | |
431 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
432 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
433 | *data = g_variant_new_tuple(range, 2); | |
434 | break; | |
435 | } | |
436 | break; | |
437 | case SR_CONF_LIMIT_SAMPLES: | |
438 | *data = g_variant_new_uint64(devc->limit_samples); | |
439 | break; | |
440 | case SR_CONF_SAMPLERATE: | |
441 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
442 | break; | |
443 | case SR_CONF_CAPTURE_RATIO: | |
444 | *data = g_variant_new_uint64(devc->capture_ratio); | |
445 | break; | |
446 | case SR_CONF_EXTERNAL_CLOCK: | |
447 | *data = g_variant_new_boolean(devc->external_clock); | |
448 | break; | |
449 | case SR_CONF_CONTINUOUS: | |
450 | *data = g_variant_new_boolean(devc->continuous_mode); | |
451 | break; | |
452 | case SR_CONF_CLOCK_EDGE: | |
453 | i = devc->clock_edge; | |
454 | if (i >= ARRAY_SIZE(signal_edge_names)) | |
455 | return SR_ERR_BUG; | |
456 | *data = g_variant_new_string(signal_edge_names[0]); | |
457 | break; | |
458 | default: | |
459 | return SR_ERR_NA; | |
460 | } | |
461 | ||
462 | return SR_OK; | |
463 | } | |
464 | ||
465 | /* | |
466 | * Helper for mapping a string-typed configuration value to an index | |
467 | * within a table of possible values. | |
468 | */ | |
469 | static int lookup_index(GVariant *value, const char *const *table, int len) | |
470 | { | |
471 | const char *entry; | |
472 | int i; | |
473 | ||
474 | entry = g_variant_get_string(value, NULL); | |
475 | if (!entry) | |
476 | return -1; | |
477 | ||
478 | /* Linear search is fine for very small tables. */ | |
479 | for (i = 0; i < len; i++) { | |
480 | if (strcmp(entry, table[i]) == 0) | |
481 | return i; | |
482 | } | |
483 | ||
484 | return -1; | |
485 | } | |
486 | ||
487 | static int config_set(uint32_t key, GVariant *data, | |
488 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
489 | { | |
490 | struct dev_context *devc; | |
491 | uint64_t arg; | |
492 | int i, ret; | |
493 | gdouble low, high; | |
494 | ||
495 | (void)cg; | |
496 | ||
497 | if (!sdi) | |
498 | return SR_ERR_ARG; | |
499 | ||
500 | if (sdi->status != SR_ST_ACTIVE) | |
501 | return SR_ERR; | |
502 | ||
503 | devc = sdi->priv; | |
504 | ||
505 | ret = SR_OK; | |
506 | ||
507 | switch (key) { | |
508 | case SR_CONF_SAMPLERATE: | |
509 | arg = g_variant_get_uint64(data); | |
510 | for (i = 0; i < devc->num_samplerates; i++) { | |
511 | if (devc->samplerates[i] == arg) { | |
512 | devc->cur_samplerate = arg; | |
513 | break; | |
514 | } | |
515 | } | |
516 | if (i == devc->num_samplerates) | |
517 | ret = SR_ERR_ARG; | |
518 | break; | |
519 | case SR_CONF_LIMIT_SAMPLES: | |
520 | devc->limit_samples = g_variant_get_uint64(data); | |
521 | break; | |
522 | case SR_CONF_CAPTURE_RATIO: | |
523 | devc->capture_ratio = g_variant_get_uint64(data); | |
524 | ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK; | |
525 | break; | |
526 | case SR_CONF_VOLTAGE_THRESHOLD: | |
527 | g_variant_get(data, "(dd)", &low, &high); | |
528 | ret = SR_ERR_ARG; | |
529 | for (i = 0; (unsigned int)i < ARRAY_SIZE(volt_thresholds); i++) { | |
530 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
531 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
532 | devc->voltage_threshold = volt_thresholds[i].range; | |
533 | break; | |
534 | } | |
535 | } | |
3566348b | 536 | ret = dslogic_fpga_firmware_upload(sdi); |
adcb9951 JH |
537 | break; |
538 | case SR_CONF_EXTERNAL_CLOCK: | |
539 | devc->external_clock = g_variant_get_boolean(data); | |
540 | break; | |
541 | case SR_CONF_CONTINUOUS: | |
542 | devc->continuous_mode = g_variant_get_boolean(data); | |
543 | break; | |
544 | case SR_CONF_CLOCK_EDGE: | |
545 | i = lookup_index(data, signal_edge_names, | |
546 | ARRAY_SIZE(signal_edge_names)); | |
547 | if (i < 0) | |
548 | return SR_ERR_ARG; | |
549 | devc->clock_edge = i; | |
550 | break; | |
551 | default: | |
552 | ret = SR_ERR_NA; | |
553 | } | |
554 | ||
555 | return ret; | |
556 | } | |
557 | ||
558 | static int config_list(uint32_t key, GVariant **data, | |
559 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
560 | { | |
561 | struct dev_context *devc; | |
562 | GVariant *gvar, *range[2]; | |
563 | GVariantBuilder gvb; | |
564 | unsigned int i; | |
565 | ||
566 | (void)cg; | |
567 | ||
568 | switch (key) { | |
569 | case SR_CONF_SCAN_OPTIONS: | |
570 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
571 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
572 | break; | |
573 | case SR_CONF_DEVICE_OPTIONS: | |
574 | if (!sdi) { | |
575 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
576 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
577 | } else { | |
578 | devc = sdi->priv; | |
579 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
580 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
581 | } | |
582 | break; | |
583 | case SR_CONF_VOLTAGE_THRESHOLD: | |
584 | if (!sdi->priv) | |
585 | return SR_ERR_ARG; | |
586 | devc = sdi->priv; | |
587 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
588 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
589 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
590 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
591 | gvar = g_variant_new_tuple(range, 2); | |
592 | g_variant_builder_add_value(&gvb, gvar); | |
593 | } | |
594 | *data = g_variant_builder_end(&gvb); | |
595 | break; | |
596 | case SR_CONF_SAMPLERATE: | |
597 | devc = sdi->priv; | |
598 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
599 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), devc->samplerates, | |
600 | devc->num_samplerates, sizeof(uint64_t)); | |
601 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
602 | *data = g_variant_builder_end(&gvb); | |
603 | break; | |
604 | case SR_CONF_CLOCK_EDGE: | |
605 | *data = g_variant_new_strv(signal_edge_names, | |
606 | ARRAY_SIZE(signal_edge_names)); | |
607 | break; | |
608 | default: | |
609 | return SR_ERR_NA; | |
610 | } | |
611 | ||
612 | return SR_OK; | |
613 | } | |
614 | ||
615 | static int receive_data(int fd, int revents, void *cb_data) | |
616 | { | |
617 | struct timeval tv; | |
618 | struct drv_context *drvc; | |
619 | ||
620 | (void)fd; | |
621 | (void)revents; | |
622 | ||
623 | drvc = (struct drv_context *)cb_data; | |
624 | ||
625 | tv.tv_sec = tv.tv_usec = 0; | |
626 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
627 | ||
628 | return TRUE; | |
629 | } | |
630 | ||
631 | static int start_transfers(const struct sr_dev_inst *sdi) | |
632 | { | |
633 | struct dev_context *devc; | |
634 | struct sr_usb_dev_inst *usb; | |
635 | struct libusb_transfer *transfer; | |
636 | unsigned int i, num_transfers; | |
637 | int timeout, ret; | |
638 | unsigned char *buf; | |
639 | size_t size; | |
640 | ||
641 | devc = sdi->priv; | |
642 | usb = sdi->conn; | |
643 | ||
644 | devc->sent_samples = 0; | |
645 | devc->acq_aborted = FALSE; | |
646 | devc->empty_transfer_count = 0; | |
647 | devc->trigger_fired = TRUE; | |
648 | ||
649 | num_transfers = dslogic_get_number_of_transfers(devc); | |
650 | ||
651 | if (devc->cur_samplerate == SR_MHZ(100)) | |
652 | num_transfers = 16; | |
653 | else if (devc->cur_samplerate == SR_MHZ(200)) | |
654 | num_transfers = 8; | |
655 | else if (devc->cur_samplerate == SR_MHZ(400)) | |
656 | num_transfers = 4; | |
657 | ||
658 | size = dslogic_get_buffer_size(devc); | |
659 | devc->submitted_transfers = 0; | |
660 | ||
661 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
662 | if (!devc->transfers) { | |
663 | sr_err("USB transfers malloc failed."); | |
664 | return SR_ERR_MALLOC; | |
665 | } | |
666 | ||
667 | timeout = dslogic_get_timeout(devc); | |
668 | devc->num_transfers = num_transfers; | |
669 | for (i = 0; i < num_transfers; i++) { | |
670 | if (!(buf = g_try_malloc(size))) { | |
671 | sr_err("USB transfer buffer malloc failed."); | |
672 | return SR_ERR_MALLOC; | |
673 | } | |
674 | transfer = libusb_alloc_transfer(0); | |
675 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
676 | 6 | LIBUSB_ENDPOINT_IN, buf, size, | |
677 | dslogic_receive_transfer, (void *)sdi, timeout); | |
678 | sr_info("submitting transfer: %d", i); | |
679 | if ((ret = libusb_submit_transfer(transfer)) != 0) { | |
680 | sr_err("Failed to submit transfer: %s.", | |
681 | libusb_error_name(ret)); | |
682 | libusb_free_transfer(transfer); | |
683 | g_free(buf); | |
684 | dslogic_abort_acquisition(devc); | |
685 | return SR_ERR; | |
686 | } | |
687 | devc->transfers[i] = transfer; | |
688 | devc->submitted_transfers++; | |
689 | } | |
690 | ||
691 | std_session_send_df_header(sdi); | |
692 | ||
693 | return SR_OK; | |
694 | } | |
695 | ||
696 | static void LIBUSB_CALL trigger_receive(struct libusb_transfer *transfer) | |
697 | { | |
698 | const struct sr_dev_inst *sdi; | |
699 | struct dslogic_trigger_pos *tpos; | |
700 | struct dev_context *devc; | |
701 | ||
702 | sdi = transfer->user_data; | |
703 | devc = sdi->priv; | |
704 | if (transfer->status == LIBUSB_TRANSFER_CANCELLED) { | |
705 | sr_dbg("Trigger transfer canceled."); | |
706 | /* Terminate session. */ | |
707 | std_session_send_df_end(sdi); | |
708 | usb_source_remove(sdi->session, devc->ctx); | |
709 | devc->num_transfers = 0; | |
710 | g_free(devc->transfers); | |
711 | } else if (transfer->status == LIBUSB_TRANSFER_COMPLETED | |
712 | && transfer->actual_length == sizeof(struct dslogic_trigger_pos)) { | |
713 | tpos = (struct dslogic_trigger_pos *)transfer->buffer; | |
714 | sr_info("tpos real_pos %d ram_saddr %d cnt %d", tpos->real_pos, | |
715 | tpos->ram_saddr, tpos->remain_cnt); | |
716 | devc->trigger_pos = tpos->real_pos; | |
717 | g_free(tpos); | |
718 | start_transfers(sdi); | |
719 | } | |
720 | libusb_free_transfer(transfer); | |
721 | } | |
722 | ||
723 | static int trigger_request(const struct sr_dev_inst *sdi) | |
724 | { | |
725 | struct sr_usb_dev_inst *usb; | |
726 | struct libusb_transfer *transfer; | |
727 | struct dslogic_trigger_pos *tpos; | |
728 | struct dev_context *devc; | |
729 | int ret; | |
730 | ||
731 | usb = sdi->conn; | |
732 | devc = sdi->priv; | |
733 | ||
734 | if ((ret = dslogic_stop_acquisition(sdi)) != SR_OK) | |
735 | return ret; | |
736 | ||
737 | if ((ret = dslogic_fpga_configure(sdi)) != SR_OK) | |
738 | return ret; | |
739 | ||
740 | /* If this is a DSLogic Pro, set the voltage threshold. */ | |
741 | if (!strcmp(devc->profile->model, "DSLogic Pro")){ | |
742 | if (devc->voltage_threshold == DS_VOLTAGE_RANGE_18_33_V) { | |
743 | dslogic_set_vth(sdi, 1.4); | |
744 | } else { | |
745 | dslogic_set_vth(sdi, 3.3); | |
746 | } | |
747 | } | |
748 | ||
749 | if ((ret = dslogic_start_acquisition(sdi)) != SR_OK) | |
750 | return ret; | |
751 | ||
752 | sr_dbg("Getting trigger."); | |
753 | tpos = g_malloc(sizeof(struct dslogic_trigger_pos)); | |
754 | transfer = libusb_alloc_transfer(0); | |
755 | libusb_fill_bulk_transfer(transfer, usb->devhdl, 6 | LIBUSB_ENDPOINT_IN, | |
756 | (unsigned char *)tpos, sizeof(struct dslogic_trigger_pos), | |
757 | trigger_receive, (void *)sdi, 0); | |
758 | if ((ret = libusb_submit_transfer(transfer)) < 0) { | |
759 | sr_err("Failed to request trigger: %s.", libusb_error_name(ret)); | |
760 | libusb_free_transfer(transfer); | |
761 | g_free(tpos); | |
762 | return SR_ERR; | |
763 | } | |
764 | ||
765 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers)); | |
766 | if (!devc->transfers) { | |
767 | sr_err("USB trigger_pos transfer malloc failed."); | |
768 | return SR_ERR_MALLOC; | |
769 | } | |
770 | devc->num_transfers = 1; | |
771 | devc->submitted_transfers++; | |
772 | devc->transfers[0] = transfer; | |
773 | ||
774 | return ret; | |
775 | } | |
776 | ||
777 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
778 | { | |
779 | struct sr_dev_driver *di; | |
780 | struct drv_context *drvc; | |
781 | struct dev_context *devc; | |
782 | int timeout; | |
783 | ||
784 | if (sdi->status != SR_ST_ACTIVE) | |
785 | return SR_ERR_DEV_CLOSED; | |
786 | ||
787 | di = sdi->driver; | |
788 | drvc = di->context; | |
789 | devc = sdi->priv; | |
790 | ||
791 | devc->ctx = drvc->sr_ctx; | |
792 | devc->sent_samples = 0; | |
793 | devc->empty_transfer_count = 0; | |
794 | devc->acq_aborted = FALSE; | |
795 | ||
796 | timeout = dslogic_get_timeout(devc); | |
797 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, drvc); | |
798 | ||
799 | trigger_request(sdi); | |
800 | ||
801 | return SR_OK; | |
802 | } | |
803 | ||
804 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
805 | { | |
806 | dslogic_stop_acquisition(sdi); | |
807 | ||
808 | dslogic_abort_acquisition(sdi->priv); | |
809 | ||
810 | return SR_OK; | |
811 | } | |
812 | ||
813 | static struct sr_dev_driver dslogic_driver_info = { | |
814 | .name = "dslogic", | |
815 | .longname = "DreamSourceLabs DSLogic", | |
816 | .api_version = 1, | |
817 | .init = std_init, | |
818 | .cleanup = std_cleanup, | |
819 | .scan = scan, | |
820 | .dev_list = std_dev_list, | |
821 | .dev_clear = dev_clear, | |
822 | .config_get = config_get, | |
823 | .config_set = config_set, | |
824 | .config_list = config_list, | |
825 | .dev_open = dev_open, | |
826 | .dev_close = dev_close, | |
827 | .dev_acquisition_start = dev_acquisition_start, | |
828 | .dev_acquisition_stop = dev_acquisition_stop, | |
829 | .context = NULL, | |
830 | }; | |
831 | SR_REGISTER_DEV_DRIVER(dslogic_driver_info); |