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c463dcf0 MC |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se> | |
fec7aa6a MC |
5 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> |
6 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
c463dcf0 MC |
7 | * |
8 | * This program is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 3 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
f6a21fa5 MC |
22 | #include <glib.h> |
23 | #include <libusb.h> | |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
db11d7d2 | 26 | #include <math.h> |
f6a21fa5 MC |
27 | #include "libsigrok.h" |
28 | #include "libsigrok-internal.h" | |
c463dcf0 MC |
29 | #include "protocol.h" |
30 | ||
96484e22 UH |
31 | #define LOGIC16_VID 0x21a9 |
32 | #define LOGIC16_PID 0x1001 | |
f6a21fa5 | 33 | |
5eea4305 MC |
34 | #define USB_INTERFACE 0 |
35 | #define USB_CONFIGURATION 1 | |
36 | #define FX2_FIRMWARE FIRMWARE_DIR "/saleae-logic16-fx2.fw" | |
37 | ||
38 | #define MAX_RENUM_DELAY_MS 3000 | |
7b5daad4 | 39 | #define NUM_SIMUL_TRANSFERS 32 |
5eea4305 | 40 | |
c463dcf0 MC |
41 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info; |
42 | static struct sr_dev_driver *di = &saleae_logic16_driver_info; | |
43 | ||
b117363a MC |
44 | static const int32_t hwopts[] = { |
45 | SR_CONF_CONN, | |
46 | }; | |
47 | ||
48 | static const int32_t hwcaps[] = { | |
49 | SR_CONF_LOGIC_ANALYZER, | |
50 | SR_CONF_SAMPLERATE, | |
db11d7d2 | 51 | SR_CONF_VOLTAGE_THRESHOLD, |
b117363a MC |
52 | |
53 | /* These are really implemented in the driver, not the hardware. */ | |
54 | SR_CONF_LIMIT_SAMPLES, | |
55 | SR_CONF_CONTINUOUS, | |
56 | }; | |
57 | ||
d0107565 | 58 | static const char *probe_names[] = { |
f6a21fa5 MC |
59 | "0", "1", "2", "3", "4", "5", "6", "7", "8", |
60 | "9", "10", "11", "12", "13", "14", "15", | |
61 | NULL, | |
62 | }; | |
c463dcf0 | 63 | |
db11d7d2 MC |
64 | static const struct { |
65 | enum voltage_range range; | |
66 | gdouble low; | |
67 | gdouble high; | |
68 | } volt_thresholds[] = { | |
69 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
70 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
71 | }; | |
72 | ||
7b5daad4 MC |
73 | static const uint64_t samplerates[] = { |
74 | SR_KHZ(500), | |
75 | SR_MHZ(1), | |
76 | SR_MHZ(2), | |
77 | SR_MHZ(4), | |
78 | SR_MHZ(5), | |
79 | SR_MHZ(8), | |
80 | SR_MHZ(10), | |
81 | SR_KHZ(12500), | |
82 | SR_MHZ(16), | |
83 | SR_MHZ(25), | |
84 | SR_MHZ(32), | |
85 | SR_MHZ(40), | |
86 | SR_MHZ(80), | |
87 | SR_MHZ(100), | |
88 | }; | |
89 | ||
c463dcf0 MC |
90 | static int init(struct sr_context *sr_ctx) |
91 | { | |
92 | return std_init(sr_ctx, di, LOG_PREFIX); | |
93 | } | |
94 | ||
5eea4305 MC |
95 | static gboolean check_conf_profile(libusb_device *dev) |
96 | { | |
97 | struct libusb_device_descriptor des; | |
98 | struct libusb_device_handle *hdl; | |
99 | gboolean ret; | |
100 | unsigned char strdesc[64]; | |
101 | ||
102 | hdl = NULL; | |
103 | ret = FALSE; | |
104 | while (!ret) { | |
105 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
106 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
107 | break; | |
108 | ||
109 | if (libusb_open(dev, &hdl) != 0) | |
110 | break; | |
111 | ||
112 | if (libusb_get_string_descriptor_ascii(hdl, | |
113 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
114 | break; | |
115 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
116 | break; | |
117 | ||
118 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 119 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
120 | break; |
121 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
122 | break; | |
123 | ||
124 | /* If we made it here, it must be a configured Logic16. */ | |
125 | ret = TRUE; | |
126 | } | |
127 | if (hdl) | |
128 | libusb_close(hdl); | |
129 | ||
130 | return ret; | |
131 | } | |
132 | ||
c463dcf0 MC |
133 | static GSList *scan(GSList *options) |
134 | { | |
135 | struct drv_context *drvc; | |
f6a21fa5 MC |
136 | struct dev_context *devc; |
137 | struct sr_dev_inst *sdi; | |
5eea4305 | 138 | struct sr_usb_dev_inst *usb; |
f6a21fa5 | 139 | struct sr_probe *probe; |
5eea4305 MC |
140 | struct sr_config *src; |
141 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
142 | struct libusb_device_descriptor des; |
143 | libusb_device **devlist; | |
5eea4305 MC |
144 | int devcnt, ret, i, j; |
145 | const char *conn; | |
c463dcf0 | 146 | |
c463dcf0 | 147 | drvc = di->priv; |
c463dcf0 | 148 | |
5eea4305 MC |
149 | conn = NULL; |
150 | for (l = options; l; l = l->next) { | |
151 | src = l->data; | |
152 | switch (src->key) { | |
153 | case SR_CONF_CONN: | |
154 | conn = g_variant_get_string(src->data, NULL); | |
155 | break; | |
156 | } | |
157 | } | |
158 | if (conn) | |
159 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
160 | else | |
161 | conn_devices = NULL; | |
162 | ||
163 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
164 | devices = NULL; |
165 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
166 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
167 | if (conn) { |
168 | usb = NULL; | |
169 | for (l = conn_devices; l; l = l->next) { | |
170 | usb = l->data; | |
171 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
172 | && usb->address == libusb_get_device_address(devlist[i])) | |
173 | break; | |
174 | } | |
175 | if (!l) | |
176 | /* This device matched none of the ones that | |
177 | * matched the conn specification. */ | |
178 | continue; | |
179 | } | |
180 | ||
96484e22 | 181 | if ((ret = libusb_get_device_descriptor(devlist[i], &des)) != 0) { |
5eea4305 MC |
182 | sr_warn("Failed to get device descriptor: %s.", |
183 | libusb_error_name(ret)); | |
f6a21fa5 MC |
184 | continue; |
185 | } | |
186 | ||
187 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) | |
188 | continue; | |
189 | ||
190 | devcnt = g_slist_length(drvc->instances); | |
5eea4305 MC |
191 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, |
192 | "Saleae", "Logic16", NULL); | |
193 | if (!sdi) | |
f6a21fa5 MC |
194 | return NULL; |
195 | sdi->driver = di; | |
196 | ||
f6a21fa5 MC |
197 | for (j = 0; probe_names[j]; j++) { |
198 | if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE, | |
199 | probe_names[j]))) | |
200 | return NULL; | |
201 | sdi->probes = g_slist_append(sdi->probes, probe); | |
202 | } | |
203 | ||
5eea4305 | 204 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) |
f6a21fa5 | 205 | return NULL; |
db11d7d2 | 206 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 207 | sdi->priv = devc; |
f6a21fa5 MC |
208 | drvc->instances = g_slist_append(drvc->instances, sdi); |
209 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
210 | |
211 | if (check_conf_profile(devlist[i])) { | |
212 | /* Already has the firmware, so fix the new address. */ | |
213 | sr_dbg("Found a Logic16 device."); | |
214 | sdi->status = SR_ST_INACTIVE; | |
215 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
216 | sdi->conn = sr_usb_dev_inst_new( |
217 | libusb_get_bus_number(devlist[i]), | |
218 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 MC |
219 | } else { |
220 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
221 | FX2_FIRMWARE) == SR_OK) | |
222 | /* Store when this device's FW was updated. */ | |
223 | devc->fw_updated = g_get_monotonic_time(); | |
224 | else | |
225 | sr_err("Firmware upload failed for " | |
226 | "device %d.", devcnt); | |
227 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
228 | sdi->conn = sr_usb_dev_inst_new( |
229 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 230 | } |
f6a21fa5 MC |
231 | } |
232 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 233 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
234 | |
235 | return devices; | |
236 | } | |
237 | ||
238 | static GSList *dev_list(void) | |
239 | { | |
87b537ce | 240 | return ((struct drv_context *)(di->priv))->instances; |
c463dcf0 MC |
241 | } |
242 | ||
243 | static int dev_clear(void) | |
244 | { | |
245 | return std_dev_clear(di, NULL); | |
246 | } | |
247 | ||
5eea4305 MC |
248 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
249 | { | |
250 | libusb_device **devlist; | |
251 | struct sr_usb_dev_inst *usb; | |
252 | struct libusb_device_descriptor des; | |
5eea4305 MC |
253 | struct drv_context *drvc; |
254 | int ret, skip, i, device_count; | |
255 | ||
256 | drvc = di->priv; | |
5eea4305 MC |
257 | usb = sdi->conn; |
258 | ||
259 | if (sdi->status == SR_ST_ACTIVE) | |
260 | /* Device is already in use. */ | |
261 | return SR_ERR; | |
262 | ||
263 | skip = 0; | |
264 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
265 | if (device_count < 0) { | |
266 | sr_err("Failed to get device list: %s.", | |
267 | libusb_error_name(device_count)); | |
268 | return SR_ERR; | |
269 | } | |
270 | ||
271 | for (i = 0; i < device_count; i++) { | |
272 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
273 | sr_err("Failed to get device descriptor: %s.", | |
274 | libusb_error_name(ret)); | |
275 | continue; | |
276 | } | |
277 | ||
96484e22 | 278 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
279 | continue; |
280 | ||
281 | if (sdi->status == SR_ST_INITIALIZING) { | |
282 | if (skip != sdi->index) { | |
283 | /* Skip devices of this type that aren't the one we want. */ | |
284 | skip += 1; | |
285 | continue; | |
286 | } | |
287 | } else if (sdi->status == SR_ST_INACTIVE) { | |
288 | /* | |
289 | * This device is fully enumerated, so we need to find | |
290 | * this device by vendor, product, bus and address. | |
291 | */ | |
292 | if (libusb_get_bus_number(devlist[i]) != usb->bus | |
96484e22 | 293 | || libusb_get_device_address(devlist[i]) != usb->address) |
5eea4305 MC |
294 | /* This is not the one. */ |
295 | continue; | |
296 | } | |
297 | ||
298 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
299 | if (usb->address == 0xff) | |
300 | /* | |
301 | * First time we touch this device after FW | |
302 | * upload, so we don't know the address yet. | |
303 | */ | |
304 | usb->address = libusb_get_device_address(devlist[i]); | |
305 | } else { | |
306 | sr_err("Failed to open device: %s.", | |
307 | libusb_error_name(ret)); | |
308 | break; | |
309 | } | |
310 | ||
96484e22 | 311 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
312 | sr_err("Failed to init device."); |
313 | break; | |
314 | } | |
315 | ||
5eea4305 | 316 | sdi->status = SR_ST_ACTIVE; |
96484e22 UH |
317 | sr_info("Opened device %d on %d.%d, interface %d.", |
318 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
5eea4305 MC |
319 | |
320 | break; | |
321 | } | |
322 | libusb_free_device_list(devlist, 1); | |
323 | ||
324 | if (sdi->status != SR_ST_ACTIVE) | |
325 | return SR_ERR; | |
326 | ||
327 | return SR_OK; | |
328 | } | |
329 | ||
c463dcf0 MC |
330 | static int dev_open(struct sr_dev_inst *sdi) |
331 | { | |
5eea4305 MC |
332 | struct sr_usb_dev_inst *usb; |
333 | struct dev_context *devc; | |
334 | int ret; | |
335 | int64_t timediff_us, timediff_ms; | |
336 | ||
337 | devc = sdi->priv; | |
338 | usb = sdi->conn; | |
339 | ||
340 | /* | |
341 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
342 | * milliseconds for the FX2 to renumerate. | |
343 | */ | |
344 | ret = SR_ERR; | |
345 | if (devc->fw_updated > 0) { | |
346 | sr_info("Waiting for device to reset."); | |
347 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
348 | g_usleep(300 * 1000); | |
349 | timediff_ms = 0; | |
350 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
351 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
352 | break; | |
353 | g_usleep(100 * 1000); | |
354 | ||
355 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
356 | timediff_ms = timediff_us / 1000; | |
357 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
358 | } | |
359 | if (ret != SR_OK) { | |
360 | sr_err("Device failed to renumerate."); | |
361 | return SR_ERR; | |
362 | } | |
363 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
364 | } else { | |
365 | sr_info("Firmware upload was not needed."); | |
366 | ret = logic16_dev_open(sdi); | |
367 | } | |
368 | ||
369 | if (ret != SR_OK) { | |
370 | sr_err("Unable to open device."); | |
371 | return SR_ERR; | |
372 | } | |
373 | ||
374 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
375 | if (ret != 0) { | |
96484e22 | 376 | switch (ret) { |
5eea4305 MC |
377 | case LIBUSB_ERROR_BUSY: |
378 | sr_err("Unable to claim USB interface. Another " | |
379 | "program or driver has already claimed it."); | |
380 | break; | |
381 | case LIBUSB_ERROR_NO_DEVICE: | |
382 | sr_err("Device has been disconnected."); | |
383 | break; | |
384 | default: | |
385 | sr_err("Unable to claim interface: %s.", | |
386 | libusb_error_name(ret)); | |
387 | break; | |
388 | } | |
c463dcf0 | 389 | |
5eea4305 MC |
390 | return SR_ERR; |
391 | } | |
c463dcf0 | 392 | |
5eea4305 MC |
393 | if (devc->cur_samplerate == 0) { |
394 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 395 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 396 | } |
c463dcf0 MC |
397 | |
398 | return SR_OK; | |
399 | } | |
400 | ||
401 | static int dev_close(struct sr_dev_inst *sdi) | |
402 | { | |
5eea4305 | 403 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 404 | |
5eea4305 MC |
405 | usb = sdi->conn; |
406 | if (usb->devhdl == NULL) | |
407 | return SR_ERR; | |
c463dcf0 | 408 | |
5eea4305 MC |
409 | sr_info("Closing device %d on %d.%d interface %d.", |
410 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
411 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
412 | libusb_close(usb->devhdl); | |
413 | usb->devhdl = NULL; | |
c463dcf0 MC |
414 | sdi->status = SR_ST_INACTIVE; |
415 | ||
416 | return SR_OK; | |
417 | } | |
418 | ||
419 | static int cleanup(void) | |
420 | { | |
f6a21fa5 MC |
421 | int ret; |
422 | struct drv_context *drvc; | |
c463dcf0 | 423 | |
f6a21fa5 MC |
424 | if (!(drvc = di->priv)) |
425 | /* Can get called on an unused driver, doesn't matter. */ | |
426 | return SR_OK; | |
c463dcf0 | 427 | |
f6a21fa5 MC |
428 | ret = dev_clear(); |
429 | g_free(drvc); | |
430 | di->priv = NULL; | |
431 | ||
432 | return ret; | |
c463dcf0 MC |
433 | } |
434 | ||
435 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
436 | { | |
7b5daad4 | 437 | struct dev_context *devc; |
b117363a | 438 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 439 | GVariant *range[2]; |
b117363a | 440 | char str[128]; |
c463dcf0 | 441 | int ret; |
96484e22 | 442 | unsigned int i; |
c463dcf0 | 443 | |
c463dcf0 MC |
444 | ret = SR_OK; |
445 | switch (key) { | |
b117363a MC |
446 | case SR_CONF_CONN: |
447 | if (!sdi || !sdi->conn) | |
448 | return SR_ERR_ARG; | |
449 | usb = sdi->conn; | |
450 | if (usb->address == 255) | |
451 | /* Device still needs to re-enumerate after firmware | |
452 | * upload, so we don't know its (future) address. */ | |
453 | return SR_ERR; | |
454 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
455 | *data = g_variant_new_string(str); | |
456 | break; | |
7b5daad4 MC |
457 | case SR_CONF_SAMPLERATE: |
458 | if (!sdi) | |
459 | return SR_ERR; | |
460 | devc = sdi->priv; | |
461 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
462 | break; | |
db11d7d2 MC |
463 | case SR_CONF_VOLTAGE_THRESHOLD: |
464 | if (!sdi) | |
465 | return SR_ERR; | |
466 | devc = sdi->priv; | |
467 | ret = SR_ERR; | |
96484e22 UH |
468 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
469 | if (devc->selected_voltage_range != | |
470 | volt_thresholds[i].range) | |
471 | continue; | |
472 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
473 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
474 | *data = g_variant_new_tuple(range, 2); | |
475 | ret = SR_OK; | |
476 | break; | |
477 | } | |
db11d7d2 | 478 | break; |
c463dcf0 MC |
479 | default: |
480 | return SR_ERR_NA; | |
481 | } | |
482 | ||
483 | return ret; | |
484 | } | |
485 | ||
486 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) | |
487 | { | |
7b5daad4 | 488 | struct dev_context *devc; |
db11d7d2 | 489 | gdouble low, high; |
c463dcf0 | 490 | int ret; |
96484e22 | 491 | unsigned int i; |
c463dcf0 | 492 | |
c463dcf0 MC |
493 | if (sdi->status != SR_ST_ACTIVE) |
494 | return SR_ERR_DEV_CLOSED; | |
495 | ||
7b5daad4 MC |
496 | devc = sdi->priv; |
497 | ||
c463dcf0 MC |
498 | ret = SR_OK; |
499 | switch (key) { | |
7b5daad4 MC |
500 | case SR_CONF_SAMPLERATE: |
501 | devc->cur_samplerate = g_variant_get_uint64(data); | |
502 | break; | |
503 | case SR_CONF_LIMIT_SAMPLES: | |
504 | devc->limit_samples = g_variant_get_uint64(data); | |
505 | break; | |
db11d7d2 MC |
506 | case SR_CONF_VOLTAGE_THRESHOLD: |
507 | g_variant_get(data, "(dd)", &low, &high); | |
508 | ret = SR_ERR_ARG; | |
509 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
510 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
511 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
512 | devc->selected_voltage_range = | |
513 | volt_thresholds[i].range; | |
514 | ret = SR_OK; | |
515 | break; | |
516 | } | |
517 | } | |
518 | break; | |
c463dcf0 MC |
519 | default: |
520 | ret = SR_ERR_NA; | |
521 | } | |
522 | ||
523 | return ret; | |
524 | } | |
525 | ||
526 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
527 | { | |
db11d7d2 | 528 | GVariant *gvar, *range[2]; |
7b5daad4 | 529 | GVariantBuilder gvb; |
c463dcf0 | 530 | int ret; |
96484e22 | 531 | unsigned int i; |
c463dcf0 MC |
532 | |
533 | (void)sdi; | |
c463dcf0 MC |
534 | |
535 | ret = SR_OK; | |
536 | switch (key) { | |
b117363a MC |
537 | case SR_CONF_SCAN_OPTIONS: |
538 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
539 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
540 | break; | |
541 | case SR_CONF_DEVICE_OPTIONS: | |
542 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
543 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
544 | break; | |
7b5daad4 MC |
545 | case SR_CONF_SAMPLERATE: |
546 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
547 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
548 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
549 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
550 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
551 | break; |
552 | case SR_CONF_VOLTAGE_THRESHOLD: | |
553 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
554 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
555 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
556 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
557 | gvar = g_variant_new_tuple(range, 2); | |
558 | g_variant_builder_add_value(&gvb, gvar); | |
559 | } | |
560 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 561 | break; |
c463dcf0 MC |
562 | default: |
563 | return SR_ERR_NA; | |
564 | } | |
565 | ||
566 | return ret; | |
567 | } | |
568 | ||
7b5daad4 MC |
569 | static void abort_acquisition(struct dev_context *devc) |
570 | { | |
571 | int i; | |
572 | ||
573 | devc->num_samples = -1; | |
574 | ||
575 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
576 | if (devc->transfers[i]) | |
577 | libusb_cancel_transfer(devc->transfers[i]); | |
578 | } | |
579 | } | |
580 | ||
581 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
582 | { | |
583 | return devc->cur_samplerate * devc->num_channels / 8000; | |
584 | } | |
585 | ||
586 | static size_t get_buffer_size(struct dev_context *devc) | |
587 | { | |
588 | size_t s; | |
589 | ||
590 | /* | |
591 | * The buffer should be large enough to hold 10ms of data and | |
592 | * a multiple of 512. | |
593 | */ | |
594 | s = 10 * bytes_per_ms(devc); | |
595 | return (s + 511) & ~511; | |
596 | } | |
597 | ||
598 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
599 | { | |
600 | unsigned int n; | |
601 | ||
602 | /* Total buffer size should be able to hold about 500ms of data. */ | |
603 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
604 | ||
605 | if (n > NUM_SIMUL_TRANSFERS) | |
606 | return NUM_SIMUL_TRANSFERS; | |
607 | ||
608 | return n; | |
609 | } | |
610 | ||
611 | static unsigned int get_timeout(struct dev_context *devc) | |
612 | { | |
613 | size_t total_size; | |
614 | unsigned int timeout; | |
615 | ||
616 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
617 | timeout = total_size / bytes_per_ms(devc); | |
618 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
619 | } | |
620 | ||
621 | static int configure_probes(const struct sr_dev_inst *sdi) | |
622 | { | |
623 | struct dev_context *devc; | |
624 | struct sr_probe *probe; | |
625 | GSList *l; | |
626 | uint16_t probe_bit; | |
627 | ||
628 | devc = sdi->priv; | |
629 | ||
630 | devc->cur_channels = 0; | |
631 | devc->num_channels = 0; | |
632 | for (l = sdi->probes; l; l = l->next) { | |
633 | probe = (struct sr_probe *)l->data; | |
634 | if (probe->enabled == FALSE) | |
635 | continue; | |
636 | ||
637 | probe_bit = 1 << (probe->index); | |
638 | ||
639 | devc->cur_channels |= probe_bit; | |
640 | ||
641 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
642 | /* |
643 | * Output logic data should be stored in little endian format. | |
644 | * To speed things up during conversion, do the switcharoo | |
645 | * here instead. | |
646 | */ | |
7b5daad4 MC |
647 | probe_bit = 1 << (probe->index ^ 8); |
648 | #endif | |
649 | ||
96484e22 | 650 | devc->channel_masks[devc->num_channels++] = probe_bit; |
7b5daad4 MC |
651 | } |
652 | ||
653 | return SR_OK; | |
654 | } | |
655 | ||
656 | static int receive_data(int fd, int revents, void *cb_data) | |
657 | { | |
658 | struct timeval tv; | |
659 | struct dev_context *devc; | |
660 | struct drv_context *drvc; | |
661 | const struct sr_dev_inst *sdi; | |
662 | ||
663 | (void)fd; | |
664 | (void)revents; | |
665 | ||
666 | sdi = cb_data; | |
667 | drvc = di->priv; | |
668 | devc = sdi->priv; | |
669 | ||
670 | tv.tv_sec = tv.tv_usec = 0; | |
671 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
672 | ||
673 | if (devc->num_samples == -2) { | |
96484e22 | 674 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
675 | abort_acquisition(devc); |
676 | } | |
677 | ||
678 | return TRUE; | |
679 | } | |
680 | ||
96484e22 | 681 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
c463dcf0 | 682 | { |
7b5daad4 MC |
683 | struct dev_context *devc; |
684 | struct drv_context *drvc; | |
685 | struct sr_usb_dev_inst *usb; | |
686 | struct libusb_transfer *transfer; | |
687 | const struct libusb_pollfd **lupfd; | |
688 | unsigned int i, timeout, num_transfers; | |
689 | int ret; | |
690 | unsigned char *buf; | |
691 | size_t size, convsize; | |
c463dcf0 MC |
692 | |
693 | if (sdi->status != SR_ST_ACTIVE) | |
694 | return SR_ERR_DEV_CLOSED; | |
695 | ||
7b5daad4 MC |
696 | drvc = di->priv; |
697 | devc = sdi->priv; | |
698 | usb = sdi->conn; | |
699 | ||
96484e22 | 700 | /* Configures devc->cur_channels. */ |
7b5daad4 MC |
701 | if (configure_probes(sdi) != SR_OK) { |
702 | sr_err("Failed to configure probes."); | |
703 | return SR_ERR; | |
704 | } | |
705 | ||
706 | devc->cb_data = cb_data; | |
707 | devc->num_samples = 0; | |
708 | devc->empty_transfer_count = 0; | |
709 | devc->cur_channel = 0; | |
710 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
711 | ||
712 | timeout = get_timeout(devc); | |
713 | num_transfers = get_number_of_transfers(devc); | |
714 | size = get_buffer_size(devc); | |
715 | convsize = (size / devc->num_channels + 2) * 16; | |
716 | devc->submitted_transfers = 0; | |
717 | devc->usbfd = NULL; | |
718 | ||
719 | devc->convbuffer_size = convsize; | |
720 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
721 | sr_err("Conversion buffer malloc failed."); | |
722 | return SR_ERR_MALLOC; | |
723 | } | |
724 | ||
725 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
726 | if (!devc->transfers) { | |
727 | sr_err("USB transfers malloc failed."); | |
728 | g_free(devc->convbuffer); | |
729 | return SR_ERR_MALLOC; | |
730 | } | |
731 | ||
96484e22 UH |
732 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
733 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
734 | g_free(devc->transfers); |
735 | g_free(devc->convbuffer); | |
736 | return ret; | |
737 | } | |
738 | ||
739 | devc->num_transfers = num_transfers; | |
740 | for (i = 0; i < num_transfers; i++) { | |
741 | if (!(buf = g_try_malloc(size))) { | |
742 | sr_err("USB transfer buffer malloc failed."); | |
743 | if (devc->submitted_transfers) | |
744 | abort_acquisition(devc); | |
745 | else { | |
746 | g_free(devc->transfers); | |
747 | g_free(devc->convbuffer); | |
748 | } | |
749 | return SR_ERR_MALLOC; | |
750 | } | |
751 | transfer = libusb_alloc_transfer(0); | |
752 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
753 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
96484e22 | 754 | logic16_receive_transfer, devc, timeout); |
7b5daad4 MC |
755 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
756 | sr_err("Failed to submit transfer: %s.", | |
757 | libusb_error_name(ret)); | |
758 | libusb_free_transfer(transfer); | |
759 | g_free(buf); | |
760 | abort_acquisition(devc); | |
761 | return SR_ERR; | |
762 | } | |
763 | devc->transfers[i] = transfer; | |
764 | devc->submitted_transfers++; | |
765 | } | |
766 | ||
767 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); | |
768 | for (i = 0; lupfd[i]; i++); | |
96484e22 UH |
769 | devc->usbfd = g_try_malloc(sizeof(struct libusb_pollfd) * (i + 1)); |
770 | if (!devc->usbfd) { | |
7b5daad4 MC |
771 | abort_acquisition(devc); |
772 | free(lupfd); | |
773 | return SR_ERR; | |
774 | } | |
775 | for (i = 0; lupfd[i]; i++) { | |
776 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, | |
777 | timeout, receive_data, (void *)sdi); | |
778 | devc->usbfd[i] = lupfd[i]->fd; | |
779 | } | |
780 | devc->usbfd[i] = -1; | |
781 | free(lupfd); | |
782 | ||
783 | /* Send header packet to the session bus. */ | |
784 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
785 | ||
96484e22 | 786 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
787 | abort_acquisition(devc); |
788 | return ret; | |
789 | } | |
c463dcf0 MC |
790 | |
791 | return SR_OK; | |
792 | } | |
793 | ||
794 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
795 | { | |
7b5daad4 MC |
796 | int ret; |
797 | ||
c463dcf0 MC |
798 | (void)cb_data; |
799 | ||
800 | if (sdi->status != SR_ST_ACTIVE) | |
801 | return SR_ERR_DEV_CLOSED; | |
802 | ||
96484e22 | 803 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 804 | |
7b5daad4 MC |
805 | abort_acquisition(sdi->priv); |
806 | ||
807 | return ret; | |
c463dcf0 MC |
808 | } |
809 | ||
810 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
811 | .name = "saleae-logic16", | |
812 | .longname = "Saleae Logic16", | |
813 | .api_version = 1, | |
814 | .init = init, | |
815 | .cleanup = cleanup, | |
816 | .scan = scan, | |
817 | .dev_list = dev_list, | |
818 | .dev_clear = dev_clear, | |
819 | .config_get = config_get, | |
820 | .config_set = config_set, | |
821 | .config_list = config_list, | |
822 | .dev_open = dev_open, | |
823 | .dev_close = dev_close, | |
824 | .dev_acquisition_start = dev_acquisition_start, | |
825 | .dev_acquisition_stop = dev_acquisition_stop, | |
826 | .priv = NULL, | |
827 | }; |