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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, |
863357fb | 52 | SR_CONF_TRIGGER_MATCH, |
b117363a MC |
53 | |
54 | /* These are really implemented in the driver, not the hardware. */ | |
55 | SR_CONF_LIMIT_SAMPLES, | |
56 | SR_CONF_CONTINUOUS, | |
57 | }; | |
58 | ||
863357fb BV |
59 | static const int32_t soft_trigger_matches[] = { |
60 | SR_TRIGGER_ZERO, | |
61 | SR_TRIGGER_ONE, | |
62 | SR_TRIGGER_RISING, | |
63 | SR_TRIGGER_FALLING, | |
64 | SR_TRIGGER_EDGE, | |
65 | }; | |
66 | ||
ba7dd8bb | 67 | static const char *channel_names[] = { |
f6a21fa5 MC |
68 | "0", "1", "2", "3", "4", "5", "6", "7", "8", |
69 | "9", "10", "11", "12", "13", "14", "15", | |
70 | NULL, | |
71 | }; | |
c463dcf0 | 72 | |
db11d7d2 MC |
73 | static const struct { |
74 | enum voltage_range range; | |
75 | gdouble low; | |
76 | gdouble high; | |
77 | } volt_thresholds[] = { | |
78 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
79 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
80 | }; | |
81 | ||
7b5daad4 MC |
82 | static const uint64_t samplerates[] = { |
83 | SR_KHZ(500), | |
84 | SR_MHZ(1), | |
85 | SR_MHZ(2), | |
86 | SR_MHZ(4), | |
87 | SR_MHZ(5), | |
88 | SR_MHZ(8), | |
89 | SR_MHZ(10), | |
90 | SR_KHZ(12500), | |
91 | SR_MHZ(16), | |
92 | SR_MHZ(25), | |
93 | SR_MHZ(32), | |
94 | SR_MHZ(40), | |
95 | SR_MHZ(80), | |
96 | SR_MHZ(100), | |
97 | }; | |
98 | ||
c463dcf0 MC |
99 | static int init(struct sr_context *sr_ctx) |
100 | { | |
101 | return std_init(sr_ctx, di, LOG_PREFIX); | |
102 | } | |
103 | ||
5eea4305 MC |
104 | static gboolean check_conf_profile(libusb_device *dev) |
105 | { | |
106 | struct libusb_device_descriptor des; | |
107 | struct libusb_device_handle *hdl; | |
108 | gboolean ret; | |
109 | unsigned char strdesc[64]; | |
110 | ||
111 | hdl = NULL; | |
112 | ret = FALSE; | |
113 | while (!ret) { | |
114 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
115 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
116 | break; | |
117 | ||
118 | if (libusb_open(dev, &hdl) != 0) | |
119 | break; | |
120 | ||
121 | if (libusb_get_string_descriptor_ascii(hdl, | |
122 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
123 | break; | |
124 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
125 | break; | |
126 | ||
127 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 128 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
129 | break; |
130 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
131 | break; | |
132 | ||
133 | /* If we made it here, it must be a configured Logic16. */ | |
134 | ret = TRUE; | |
135 | } | |
136 | if (hdl) | |
137 | libusb_close(hdl); | |
138 | ||
139 | return ret; | |
140 | } | |
141 | ||
c463dcf0 MC |
142 | static GSList *scan(GSList *options) |
143 | { | |
144 | struct drv_context *drvc; | |
f6a21fa5 MC |
145 | struct dev_context *devc; |
146 | struct sr_dev_inst *sdi; | |
5eea4305 | 147 | struct sr_usb_dev_inst *usb; |
ba7dd8bb | 148 | struct sr_channel *ch; |
5eea4305 MC |
149 | struct sr_config *src; |
150 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
151 | struct libusb_device_descriptor des; |
152 | libusb_device **devlist; | |
5eea4305 MC |
153 | int devcnt, ret, i, j; |
154 | const char *conn; | |
c463dcf0 | 155 | |
c463dcf0 | 156 | drvc = di->priv; |
c463dcf0 | 157 | |
5eea4305 MC |
158 | conn = NULL; |
159 | for (l = options; l; l = l->next) { | |
160 | src = l->data; | |
161 | switch (src->key) { | |
162 | case SR_CONF_CONN: | |
163 | conn = g_variant_get_string(src->data, NULL); | |
164 | break; | |
165 | } | |
166 | } | |
167 | if (conn) | |
168 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
169 | else | |
170 | conn_devices = NULL; | |
171 | ||
172 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
173 | devices = NULL; |
174 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
175 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
176 | if (conn) { |
177 | usb = NULL; | |
178 | for (l = conn_devices; l; l = l->next) { | |
179 | usb = l->data; | |
180 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
181 | && usb->address == libusb_get_device_address(devlist[i])) | |
182 | break; | |
183 | } | |
184 | if (!l) | |
185 | /* This device matched none of the ones that | |
186 | * matched the conn specification. */ | |
187 | continue; | |
188 | } | |
189 | ||
96484e22 | 190 | if ((ret = libusb_get_device_descriptor(devlist[i], &des)) != 0) { |
5eea4305 MC |
191 | sr_warn("Failed to get device descriptor: %s.", |
192 | libusb_error_name(ret)); | |
f6a21fa5 MC |
193 | continue; |
194 | } | |
195 | ||
196 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) | |
197 | continue; | |
198 | ||
199 | devcnt = g_slist_length(drvc->instances); | |
5eea4305 MC |
200 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, |
201 | "Saleae", "Logic16", NULL); | |
202 | if (!sdi) | |
f6a21fa5 MC |
203 | return NULL; |
204 | sdi->driver = di; | |
205 | ||
ba7dd8bb | 206 | for (j = 0; channel_names[j]; j++) { |
3f239f08 | 207 | if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, |
ba7dd8bb | 208 | channel_names[j]))) |
f6a21fa5 | 209 | return NULL; |
ba7dd8bb | 210 | sdi->channels = g_slist_append(sdi->channels, ch); |
f6a21fa5 MC |
211 | } |
212 | ||
5eea4305 | 213 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) |
f6a21fa5 | 214 | return NULL; |
db11d7d2 | 215 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 216 | sdi->priv = devc; |
f6a21fa5 MC |
217 | drvc->instances = g_slist_append(drvc->instances, sdi); |
218 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
219 | |
220 | if (check_conf_profile(devlist[i])) { | |
221 | /* Already has the firmware, so fix the new address. */ | |
222 | sr_dbg("Found a Logic16 device."); | |
223 | sdi->status = SR_ST_INACTIVE; | |
224 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
225 | sdi->conn = sr_usb_dev_inst_new( |
226 | libusb_get_bus_number(devlist[i]), | |
227 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 MC |
228 | } else { |
229 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
230 | FX2_FIRMWARE) == SR_OK) | |
231 | /* Store when this device's FW was updated. */ | |
232 | devc->fw_updated = g_get_monotonic_time(); | |
233 | else | |
234 | sr_err("Firmware upload failed for " | |
235 | "device %d.", devcnt); | |
236 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
237 | sdi->conn = sr_usb_dev_inst_new( |
238 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 239 | } |
f6a21fa5 MC |
240 | } |
241 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 242 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
243 | |
244 | return devices; | |
245 | } | |
246 | ||
247 | static GSList *dev_list(void) | |
248 | { | |
87b537ce | 249 | return ((struct drv_context *)(di->priv))->instances; |
c463dcf0 MC |
250 | } |
251 | ||
5eea4305 MC |
252 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
253 | { | |
254 | libusb_device **devlist; | |
255 | struct sr_usb_dev_inst *usb; | |
256 | struct libusb_device_descriptor des; | |
5eea4305 MC |
257 | struct drv_context *drvc; |
258 | int ret, skip, i, device_count; | |
259 | ||
260 | drvc = di->priv; | |
5eea4305 MC |
261 | usb = sdi->conn; |
262 | ||
263 | if (sdi->status == SR_ST_ACTIVE) | |
264 | /* Device is already in use. */ | |
265 | return SR_ERR; | |
266 | ||
267 | skip = 0; | |
268 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
269 | if (device_count < 0) { | |
270 | sr_err("Failed to get device list: %s.", | |
271 | libusb_error_name(device_count)); | |
272 | return SR_ERR; | |
273 | } | |
274 | ||
275 | for (i = 0; i < device_count; i++) { | |
276 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
277 | sr_err("Failed to get device descriptor: %s.", | |
278 | libusb_error_name(ret)); | |
279 | continue; | |
280 | } | |
281 | ||
96484e22 | 282 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
283 | continue; |
284 | ||
285 | if (sdi->status == SR_ST_INITIALIZING) { | |
286 | if (skip != sdi->index) { | |
287 | /* Skip devices of this type that aren't the one we want. */ | |
288 | skip += 1; | |
289 | continue; | |
290 | } | |
291 | } else if (sdi->status == SR_ST_INACTIVE) { | |
292 | /* | |
293 | * This device is fully enumerated, so we need to find | |
294 | * this device by vendor, product, bus and address. | |
295 | */ | |
296 | if (libusb_get_bus_number(devlist[i]) != usb->bus | |
96484e22 | 297 | || libusb_get_device_address(devlist[i]) != usb->address) |
5eea4305 MC |
298 | /* This is not the one. */ |
299 | continue; | |
300 | } | |
301 | ||
302 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
303 | if (usb->address == 0xff) | |
304 | /* | |
305 | * First time we touch this device after FW | |
306 | * upload, so we don't know the address yet. | |
307 | */ | |
308 | usb->address = libusb_get_device_address(devlist[i]); | |
309 | } else { | |
310 | sr_err("Failed to open device: %s.", | |
311 | libusb_error_name(ret)); | |
312 | break; | |
313 | } | |
314 | ||
0c30b35f SY |
315 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
316 | if (ret == LIBUSB_ERROR_BUSY) { | |
317 | sr_err("Unable to claim USB interface. Another " | |
318 | "program or driver has already claimed it."); | |
319 | break; | |
320 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
321 | sr_err("Device has been disconnected."); | |
322 | break; | |
323 | } else if (ret != 0) { | |
324 | sr_err("Unable to claim interface: %s.", | |
325 | libusb_error_name(ret)); | |
326 | break; | |
327 | } | |
328 | ||
96484e22 | 329 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
330 | sr_err("Failed to init device."); |
331 | break; | |
332 | } | |
333 | ||
5eea4305 | 334 | sdi->status = SR_ST_ACTIVE; |
96484e22 UH |
335 | sr_info("Opened device %d on %d.%d, interface %d.", |
336 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
5eea4305 MC |
337 | |
338 | break; | |
339 | } | |
340 | libusb_free_device_list(devlist, 1); | |
341 | ||
0c30b35f SY |
342 | if (sdi->status != SR_ST_ACTIVE) { |
343 | if (usb->devhdl) { | |
344 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
345 | libusb_close(usb->devhdl); | |
346 | usb->devhdl = NULL; | |
347 | } | |
5eea4305 | 348 | return SR_ERR; |
0c30b35f | 349 | } |
5eea4305 MC |
350 | |
351 | return SR_OK; | |
352 | } | |
353 | ||
c463dcf0 MC |
354 | static int dev_open(struct sr_dev_inst *sdi) |
355 | { | |
5eea4305 MC |
356 | struct dev_context *devc; |
357 | int ret; | |
358 | int64_t timediff_us, timediff_ms; | |
359 | ||
360 | devc = sdi->priv; | |
5eea4305 MC |
361 | |
362 | /* | |
363 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
364 | * milliseconds for the FX2 to renumerate. | |
365 | */ | |
366 | ret = SR_ERR; | |
367 | if (devc->fw_updated > 0) { | |
368 | sr_info("Waiting for device to reset."); | |
369 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
370 | g_usleep(300 * 1000); | |
371 | timediff_ms = 0; | |
372 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
373 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
374 | break; | |
375 | g_usleep(100 * 1000); | |
376 | ||
377 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
378 | timediff_ms = timediff_us / 1000; | |
379 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
380 | } | |
381 | if (ret != SR_OK) { | |
382 | sr_err("Device failed to renumerate."); | |
383 | return SR_ERR; | |
384 | } | |
385 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
386 | } else { | |
387 | sr_info("Firmware upload was not needed."); | |
388 | ret = logic16_dev_open(sdi); | |
389 | } | |
390 | ||
391 | if (ret != SR_OK) { | |
392 | sr_err("Unable to open device."); | |
393 | return SR_ERR; | |
394 | } | |
395 | ||
5eea4305 MC |
396 | if (devc->cur_samplerate == 0) { |
397 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 398 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 399 | } |
c463dcf0 MC |
400 | |
401 | return SR_OK; | |
402 | } | |
403 | ||
404 | static int dev_close(struct sr_dev_inst *sdi) | |
405 | { | |
5eea4305 | 406 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 407 | |
5eea4305 MC |
408 | usb = sdi->conn; |
409 | if (usb->devhdl == NULL) | |
410 | return SR_ERR; | |
c463dcf0 | 411 | |
5eea4305 MC |
412 | sr_info("Closing device %d on %d.%d interface %d.", |
413 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
414 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
415 | libusb_close(usb->devhdl); | |
416 | usb->devhdl = NULL; | |
c463dcf0 MC |
417 | sdi->status = SR_ST_INACTIVE; |
418 | ||
419 | return SR_OK; | |
420 | } | |
421 | ||
422 | static int cleanup(void) | |
423 | { | |
f6a21fa5 MC |
424 | int ret; |
425 | struct drv_context *drvc; | |
c463dcf0 | 426 | |
f6a21fa5 MC |
427 | if (!(drvc = di->priv)) |
428 | /* Can get called on an unused driver, doesn't matter. */ | |
429 | return SR_OK; | |
c463dcf0 | 430 | |
a6630742 BV |
431 | |
432 | ret = std_dev_clear(di, NULL); | |
f6a21fa5 MC |
433 | g_free(drvc); |
434 | di->priv = NULL; | |
435 | ||
436 | return ret; | |
c463dcf0 MC |
437 | } |
438 | ||
d3c74a6f | 439 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 440 | const struct sr_channel_group *cg) |
c463dcf0 | 441 | { |
7b5daad4 | 442 | struct dev_context *devc; |
b117363a | 443 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 444 | GVariant *range[2]; |
b117363a | 445 | char str[128]; |
c463dcf0 | 446 | int ret; |
96484e22 | 447 | unsigned int i; |
c463dcf0 | 448 | |
53b4680f | 449 | (void)cg; |
d3c74a6f | 450 | |
c463dcf0 MC |
451 | ret = SR_OK; |
452 | switch (key) { | |
b117363a MC |
453 | case SR_CONF_CONN: |
454 | if (!sdi || !sdi->conn) | |
455 | return SR_ERR_ARG; | |
456 | usb = sdi->conn; | |
457 | if (usb->address == 255) | |
458 | /* Device still needs to re-enumerate after firmware | |
459 | * upload, so we don't know its (future) address. */ | |
460 | return SR_ERR; | |
461 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
462 | *data = g_variant_new_string(str); | |
463 | break; | |
7b5daad4 MC |
464 | case SR_CONF_SAMPLERATE: |
465 | if (!sdi) | |
466 | return SR_ERR; | |
467 | devc = sdi->priv; | |
468 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
469 | break; | |
db11d7d2 MC |
470 | case SR_CONF_VOLTAGE_THRESHOLD: |
471 | if (!sdi) | |
472 | return SR_ERR; | |
473 | devc = sdi->priv; | |
474 | ret = SR_ERR; | |
96484e22 UH |
475 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
476 | if (devc->selected_voltage_range != | |
477 | volt_thresholds[i].range) | |
478 | continue; | |
479 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
480 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
481 | *data = g_variant_new_tuple(range, 2); | |
482 | ret = SR_OK; | |
483 | break; | |
484 | } | |
db11d7d2 | 485 | break; |
c463dcf0 MC |
486 | default: |
487 | return SR_ERR_NA; | |
488 | } | |
489 | ||
490 | return ret; | |
491 | } | |
492 | ||
d3c74a6f | 493 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 494 | const struct sr_channel_group *cg) |
c463dcf0 | 495 | { |
7b5daad4 | 496 | struct dev_context *devc; |
db11d7d2 | 497 | gdouble low, high; |
c463dcf0 | 498 | int ret; |
96484e22 | 499 | unsigned int i; |
c463dcf0 | 500 | |
53b4680f | 501 | (void)cg; |
d3c74a6f | 502 | |
c463dcf0 MC |
503 | if (sdi->status != SR_ST_ACTIVE) |
504 | return SR_ERR_DEV_CLOSED; | |
505 | ||
7b5daad4 MC |
506 | devc = sdi->priv; |
507 | ||
c463dcf0 MC |
508 | ret = SR_OK; |
509 | switch (key) { | |
7b5daad4 MC |
510 | case SR_CONF_SAMPLERATE: |
511 | devc->cur_samplerate = g_variant_get_uint64(data); | |
512 | break; | |
513 | case SR_CONF_LIMIT_SAMPLES: | |
514 | devc->limit_samples = g_variant_get_uint64(data); | |
515 | break; | |
db11d7d2 MC |
516 | case SR_CONF_VOLTAGE_THRESHOLD: |
517 | g_variant_get(data, "(dd)", &low, &high); | |
518 | ret = SR_ERR_ARG; | |
519 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
520 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
521 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
522 | devc->selected_voltage_range = | |
523 | volt_thresholds[i].range; | |
524 | ret = SR_OK; | |
525 | break; | |
526 | } | |
527 | } | |
528 | break; | |
c463dcf0 MC |
529 | default: |
530 | ret = SR_ERR_NA; | |
531 | } | |
532 | ||
533 | return ret; | |
534 | } | |
535 | ||
d3c74a6f | 536 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 537 | const struct sr_channel_group *cg) |
c463dcf0 | 538 | { |
db11d7d2 | 539 | GVariant *gvar, *range[2]; |
7b5daad4 | 540 | GVariantBuilder gvb; |
c463dcf0 | 541 | int ret; |
96484e22 | 542 | unsigned int i; |
c463dcf0 MC |
543 | |
544 | (void)sdi; | |
53b4680f | 545 | (void)cg; |
c463dcf0 MC |
546 | |
547 | ret = SR_OK; | |
548 | switch (key) { | |
b117363a MC |
549 | case SR_CONF_SCAN_OPTIONS: |
550 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
551 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
552 | break; | |
553 | case SR_CONF_DEVICE_OPTIONS: | |
554 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
555 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
556 | break; | |
7b5daad4 MC |
557 | case SR_CONF_SAMPLERATE: |
558 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
559 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
560 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
561 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
562 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
563 | break; |
564 | case SR_CONF_VOLTAGE_THRESHOLD: | |
565 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
566 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
567 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
568 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
569 | gvar = g_variant_new_tuple(range, 2); | |
570 | g_variant_builder_add_value(&gvb, gvar); | |
571 | } | |
572 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 573 | break; |
863357fb BV |
574 | case SR_CONF_TRIGGER_MATCH: |
575 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
576 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
577 | sizeof(int32_t)); | |
578 | break; | |
c463dcf0 MC |
579 | default: |
580 | return SR_ERR_NA; | |
581 | } | |
582 | ||
583 | return ret; | |
584 | } | |
585 | ||
7b5daad4 MC |
586 | static void abort_acquisition(struct dev_context *devc) |
587 | { | |
588 | int i; | |
589 | ||
863357fb | 590 | devc->sent_samples = -1; |
7b5daad4 MC |
591 | |
592 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
593 | if (devc->transfers[i]) | |
594 | libusb_cancel_transfer(devc->transfers[i]); | |
595 | } | |
596 | } | |
597 | ||
598 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
599 | { | |
600 | return devc->cur_samplerate * devc->num_channels / 8000; | |
601 | } | |
602 | ||
603 | static size_t get_buffer_size(struct dev_context *devc) | |
604 | { | |
605 | size_t s; | |
606 | ||
607 | /* | |
608 | * The buffer should be large enough to hold 10ms of data and | |
609 | * a multiple of 512. | |
610 | */ | |
611 | s = 10 * bytes_per_ms(devc); | |
612 | return (s + 511) & ~511; | |
613 | } | |
614 | ||
615 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
616 | { | |
617 | unsigned int n; | |
618 | ||
619 | /* Total buffer size should be able to hold about 500ms of data. */ | |
620 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
621 | ||
622 | if (n > NUM_SIMUL_TRANSFERS) | |
623 | return NUM_SIMUL_TRANSFERS; | |
624 | ||
625 | return n; | |
626 | } | |
627 | ||
628 | static unsigned int get_timeout(struct dev_context *devc) | |
629 | { | |
630 | size_t total_size; | |
631 | unsigned int timeout; | |
632 | ||
633 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
634 | timeout = total_size / bytes_per_ms(devc); | |
635 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
636 | } | |
637 | ||
ba7dd8bb | 638 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
639 | { |
640 | struct dev_context *devc; | |
ba7dd8bb | 641 | struct sr_channel *ch; |
7b5daad4 | 642 | GSList *l; |
ba7dd8bb | 643 | uint16_t channel_bit; |
7b5daad4 MC |
644 | |
645 | devc = sdi->priv; | |
646 | ||
647 | devc->cur_channels = 0; | |
648 | devc->num_channels = 0; | |
ba7dd8bb UH |
649 | for (l = sdi->channels; l; l = l->next) { |
650 | ch = (struct sr_channel *)l->data; | |
651 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
652 | continue; |
653 | ||
ba7dd8bb | 654 | channel_bit = 1 << (ch->index); |
7b5daad4 | 655 | |
ba7dd8bb | 656 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
657 | |
658 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
659 | /* |
660 | * Output logic data should be stored in little endian format. | |
661 | * To speed things up during conversion, do the switcharoo | |
662 | * here instead. | |
663 | */ | |
ba7dd8bb | 664 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
665 | #endif |
666 | ||
ba7dd8bb | 667 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
668 | } |
669 | ||
670 | return SR_OK; | |
671 | } | |
672 | ||
673 | static int receive_data(int fd, int revents, void *cb_data) | |
674 | { | |
675 | struct timeval tv; | |
676 | struct dev_context *devc; | |
677 | struct drv_context *drvc; | |
678 | const struct sr_dev_inst *sdi; | |
679 | ||
680 | (void)fd; | |
681 | (void)revents; | |
682 | ||
683 | sdi = cb_data; | |
684 | drvc = di->priv; | |
685 | devc = sdi->priv; | |
686 | ||
687 | tv.tv_sec = tv.tv_usec = 0; | |
688 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
689 | ||
863357fb | 690 | if (devc->sent_samples == -2) { |
96484e22 | 691 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
692 | abort_acquisition(devc); |
693 | } | |
694 | ||
695 | return TRUE; | |
696 | } | |
697 | ||
96484e22 | 698 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
c463dcf0 | 699 | { |
7b5daad4 MC |
700 | struct dev_context *devc; |
701 | struct drv_context *drvc; | |
702 | struct sr_usb_dev_inst *usb; | |
863357fb | 703 | struct sr_trigger *trigger; |
7b5daad4 | 704 | struct libusb_transfer *transfer; |
7b5daad4 MC |
705 | unsigned int i, timeout, num_transfers; |
706 | int ret; | |
707 | unsigned char *buf; | |
708 | size_t size, convsize; | |
c463dcf0 MC |
709 | |
710 | if (sdi->status != SR_ST_ACTIVE) | |
711 | return SR_ERR_DEV_CLOSED; | |
712 | ||
7b5daad4 MC |
713 | drvc = di->priv; |
714 | devc = sdi->priv; | |
715 | usb = sdi->conn; | |
716 | ||
96484e22 | 717 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
718 | if (configure_channels(sdi) != SR_OK) { |
719 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
720 | return SR_ERR; |
721 | } | |
722 | ||
723 | devc->cb_data = cb_data; | |
863357fb | 724 | devc->sent_samples = 0; |
7b5daad4 MC |
725 | devc->empty_transfer_count = 0; |
726 | devc->cur_channel = 0; | |
727 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
728 | ||
0812c40e | 729 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
863357fb BV |
730 | devc->stl = soft_trigger_logic_new(sdi, trigger); |
731 | devc->trigger_fired = FALSE; | |
732 | } else | |
733 | devc->trigger_fired = TRUE; | |
734 | ||
7b5daad4 MC |
735 | timeout = get_timeout(devc); |
736 | num_transfers = get_number_of_transfers(devc); | |
737 | size = get_buffer_size(devc); | |
738 | convsize = (size / devc->num_channels + 2) * 16; | |
739 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
740 | |
741 | devc->convbuffer_size = convsize; | |
742 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
743 | sr_err("Conversion buffer malloc failed."); | |
744 | return SR_ERR_MALLOC; | |
745 | } | |
746 | ||
747 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
748 | if (!devc->transfers) { | |
749 | sr_err("USB transfers malloc failed."); | |
750 | g_free(devc->convbuffer); | |
751 | return SR_ERR_MALLOC; | |
752 | } | |
753 | ||
96484e22 UH |
754 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
755 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
756 | g_free(devc->transfers); |
757 | g_free(devc->convbuffer); | |
758 | return ret; | |
759 | } | |
760 | ||
761 | devc->num_transfers = num_transfers; | |
762 | for (i = 0; i < num_transfers; i++) { | |
763 | if (!(buf = g_try_malloc(size))) { | |
764 | sr_err("USB transfer buffer malloc failed."); | |
765 | if (devc->submitted_transfers) | |
766 | abort_acquisition(devc); | |
767 | else { | |
768 | g_free(devc->transfers); | |
769 | g_free(devc->convbuffer); | |
770 | } | |
771 | return SR_ERR_MALLOC; | |
772 | } | |
773 | transfer = libusb_alloc_transfer(0); | |
774 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
775 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 776 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
777 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
778 | sr_err("Failed to submit transfer: %s.", | |
779 | libusb_error_name(ret)); | |
780 | libusb_free_transfer(transfer); | |
781 | g_free(buf); | |
782 | abort_acquisition(devc); | |
783 | return SR_ERR; | |
784 | } | |
785 | devc->transfers[i] = transfer; | |
786 | devc->submitted_transfers++; | |
787 | } | |
788 | ||
6c60facc ML |
789 | devc->ctx = drvc->sr_ctx; |
790 | ||
102f1239 | 791 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 MC |
792 | |
793 | /* Send header packet to the session bus. */ | |
794 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
795 | ||
96484e22 | 796 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
797 | abort_acquisition(devc); |
798 | return ret; | |
799 | } | |
c463dcf0 MC |
800 | |
801 | return SR_OK; | |
802 | } | |
803 | ||
804 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
805 | { | |
7b5daad4 MC |
806 | int ret; |
807 | ||
c463dcf0 MC |
808 | (void)cb_data; |
809 | ||
810 | if (sdi->status != SR_ST_ACTIVE) | |
811 | return SR_ERR_DEV_CLOSED; | |
812 | ||
96484e22 | 813 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 814 | |
7b5daad4 MC |
815 | abort_acquisition(sdi->priv); |
816 | ||
817 | return ret; | |
c463dcf0 MC |
818 | } |
819 | ||
820 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
821 | .name = "saleae-logic16", | |
822 | .longname = "Saleae Logic16", | |
823 | .api_version = 1, | |
824 | .init = init, | |
825 | .cleanup = cleanup, | |
826 | .scan = scan, | |
827 | .dev_list = dev_list, | |
a6630742 | 828 | .dev_clear = NULL, |
c463dcf0 MC |
829 | .config_get = config_get, |
830 | .config_set = config_set, | |
831 | .config_list = config_list, | |
832 | .dev_open = dev_open, | |
833 | .dev_close = dev_close, | |
834 | .dev_acquisition_start = dev_acquisition_start, | |
835 | .dev_acquisition_stop = dev_acquisition_stop, | |
836 | .priv = NULL, | |
837 | }; |