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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 | ||
6ec6c43b | 22 | #include <config.h> |
f6a21fa5 MC |
23 | #include <glib.h> |
24 | #include <libusb.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
db11d7d2 | 27 | #include <math.h> |
c1aae900 | 28 | #include <libsigrok/libsigrok.h> |
f6a21fa5 | 29 | #include "libsigrok-internal.h" |
c463dcf0 MC |
30 | #include "protocol.h" |
31 | ||
96484e22 UH |
32 | #define LOGIC16_VID 0x21a9 |
33 | #define LOGIC16_PID 0x1001 | |
f6a21fa5 | 34 | |
5eea4305 MC |
35 | #define USB_INTERFACE 0 |
36 | #define USB_CONFIGURATION 1 | |
8e2d6c9d | 37 | #define FX2_FIRMWARE "saleae-logic16-fx2.fw" |
5eea4305 MC |
38 | |
39 | #define MAX_RENUM_DELAY_MS 3000 | |
7b5daad4 | 40 | #define NUM_SIMUL_TRANSFERS 32 |
5eea4305 | 41 | |
c463dcf0 | 42 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info; |
c463dcf0 | 43 | |
a0e0bb41 | 44 | static const uint32_t scanopts[] = { |
b117363a MC |
45 | SR_CONF_CONN, |
46 | }; | |
47 | ||
f254bc4b | 48 | static const uint32_t devopts[] = { |
b117363a | 49 | SR_CONF_LOGIC_ANALYZER, |
b117363a | 50 | SR_CONF_CONTINUOUS, |
5827f61b BV |
51 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
52 | SR_CONF_CONN | SR_CONF_GET, | |
53 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
54 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
55 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
5a971f66 | 56 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, |
b117363a MC |
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", | |
f6a21fa5 | 70 | }; |
c463dcf0 | 71 | |
db11d7d2 MC |
72 | static const struct { |
73 | enum voltage_range range; | |
74 | gdouble low; | |
75 | gdouble high; | |
76 | } volt_thresholds[] = { | |
77 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
78 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
79 | }; | |
80 | ||
7b5daad4 MC |
81 | static const uint64_t samplerates[] = { |
82 | SR_KHZ(500), | |
83 | SR_MHZ(1), | |
84 | SR_MHZ(2), | |
85 | SR_MHZ(4), | |
86 | SR_MHZ(5), | |
87 | SR_MHZ(8), | |
88 | SR_MHZ(10), | |
89 | SR_KHZ(12500), | |
90 | SR_MHZ(16), | |
91 | SR_MHZ(25), | |
92 | SR_MHZ(32), | |
93 | SR_MHZ(40), | |
94 | SR_MHZ(80), | |
95 | SR_MHZ(100), | |
96 | }; | |
97 | ||
4f840ce9 | 98 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
c463dcf0 MC |
99 | { |
100 | return std_init(sr_ctx, di, LOG_PREFIX); | |
101 | } | |
102 | ||
5eea4305 MC |
103 | static gboolean check_conf_profile(libusb_device *dev) |
104 | { | |
105 | struct libusb_device_descriptor des; | |
106 | struct libusb_device_handle *hdl; | |
107 | gboolean ret; | |
108 | unsigned char strdesc[64]; | |
109 | ||
110 | hdl = NULL; | |
111 | ret = FALSE; | |
112 | while (!ret) { | |
113 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
2a8f2d41 | 114 | libusb_get_device_descriptor(dev, &des); |
5eea4305 MC |
115 | |
116 | if (libusb_open(dev, &hdl) != 0) | |
117 | break; | |
118 | ||
119 | if (libusb_get_string_descriptor_ascii(hdl, | |
120 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
121 | break; | |
122 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
123 | break; | |
124 | ||
125 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 126 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
127 | break; |
128 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
129 | break; | |
130 | ||
131 | /* If we made it here, it must be a configured Logic16. */ | |
132 | ret = TRUE; | |
133 | } | |
134 | if (hdl) | |
135 | libusb_close(hdl); | |
136 | ||
137 | return ret; | |
138 | } | |
139 | ||
4f840ce9 | 140 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
c463dcf0 MC |
141 | { |
142 | struct drv_context *drvc; | |
f6a21fa5 MC |
143 | struct dev_context *devc; |
144 | struct sr_dev_inst *sdi; | |
5eea4305 | 145 | struct sr_usb_dev_inst *usb; |
5eea4305 MC |
146 | struct sr_config *src; |
147 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
148 | struct libusb_device_descriptor des; |
149 | libusb_device **devlist; | |
2cca921d | 150 | unsigned int i, j; |
5eea4305 | 151 | const char *conn; |
ce7d3578 | 152 | char connection_id[64]; |
c463dcf0 | 153 | |
41812aca | 154 | drvc = di->context; |
c463dcf0 | 155 | |
5eea4305 MC |
156 | conn = NULL; |
157 | for (l = options; l; l = l->next) { | |
158 | src = l->data; | |
159 | switch (src->key) { | |
160 | case SR_CONF_CONN: | |
161 | conn = g_variant_get_string(src->data, NULL); | |
162 | break; | |
163 | } | |
164 | } | |
165 | if (conn) | |
166 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
167 | else | |
168 | conn_devices = NULL; | |
169 | ||
170 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
171 | devices = NULL; |
172 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
173 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
174 | if (conn) { |
175 | usb = NULL; | |
176 | for (l = conn_devices; l; l = l->next) { | |
177 | usb = l->data; | |
178 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
179 | && usb->address == libusb_get_device_address(devlist[i])) | |
180 | break; | |
181 | } | |
182 | if (!l) | |
183 | /* This device matched none of the ones that | |
184 | * matched the conn specification. */ | |
185 | continue; | |
186 | } | |
187 | ||
2a8f2d41 | 188 | libusb_get_device_descriptor(devlist[i], &des); |
f6a21fa5 | 189 | |
ce7d3578 SA |
190 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
191 | ||
f6a21fa5 MC |
192 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
193 | continue; | |
194 | ||
aac29cc1 | 195 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
196 | sdi->status = SR_ST_INITIALIZING; |
197 | sdi->vendor = g_strdup("Saleae"); | |
198 | sdi->model = g_strdup("Logic16"); | |
f6a21fa5 | 199 | sdi->driver = di; |
ce7d3578 | 200 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 201 | |
2cca921d | 202 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) |
5e23fcab | 203 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, |
c368e6f3 | 204 | channel_names[j]); |
f6a21fa5 | 205 | |
f57d8ffe | 206 | devc = g_malloc0(sizeof(struct dev_context)); |
db11d7d2 | 207 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 208 | sdi->priv = devc; |
f6a21fa5 MC |
209 | drvc->instances = g_slist_append(drvc->instances, sdi); |
210 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
211 | |
212 | if (check_conf_profile(devlist[i])) { | |
213 | /* Already has the firmware, so fix the new address. */ | |
214 | sr_dbg("Found a Logic16 device."); | |
215 | sdi->status = SR_ST_INACTIVE; | |
216 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
217 | sdi->conn = sr_usb_dev_inst_new( |
218 | libusb_get_bus_number(devlist[i]), | |
219 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 | 220 | } else { |
8e2d6c9d DE |
221 | if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i], |
222 | USB_CONFIGURATION, FX2_FIRMWARE) == SR_OK) | |
5eea4305 MC |
223 | /* Store when this device's FW was updated. */ |
224 | devc->fw_updated = g_get_monotonic_time(); | |
225 | else | |
ce7d3578 | 226 | sr_err("Firmware upload failed."); |
5eea4305 | 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 | ||
5eea4305 MC |
238 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
239 | { | |
4f840ce9 | 240 | struct sr_dev_driver *di; |
5eea4305 MC |
241 | libusb_device **devlist; |
242 | struct sr_usb_dev_inst *usb; | |
243 | struct libusb_device_descriptor des; | |
5eea4305 | 244 | struct drv_context *drvc; |
ce7d3578 SA |
245 | int ret, i, device_count; |
246 | char connection_id[64]; | |
5eea4305 | 247 | |
4f840ce9 | 248 | di = sdi->driver; |
41812aca | 249 | drvc = di->context; |
5eea4305 MC |
250 | usb = sdi->conn; |
251 | ||
252 | if (sdi->status == SR_ST_ACTIVE) | |
253 | /* Device is already in use. */ | |
254 | return SR_ERR; | |
255 | ||
5eea4305 MC |
256 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
257 | if (device_count < 0) { | |
258 | sr_err("Failed to get device list: %s.", | |
259 | libusb_error_name(device_count)); | |
260 | return SR_ERR; | |
261 | } | |
262 | ||
263 | for (i = 0; i < device_count; i++) { | |
2a8f2d41 | 264 | libusb_get_device_descriptor(devlist[i], &des); |
5eea4305 | 265 | |
96484e22 | 266 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
267 | continue; |
268 | ||
ce7d3578 SA |
269 | if ((sdi->status == SR_ST_INITIALIZING) || |
270 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 271 | /* |
ce7d3578 | 272 | * Check device by its physical USB bus/port address. |
5eea4305 | 273 | */ |
ce7d3578 SA |
274 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
275 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
276 | /* This is not the one. */ |
277 | continue; | |
278 | } | |
279 | ||
280 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
281 | if (usb->address == 0xff) | |
282 | /* | |
283 | * First time we touch this device after FW | |
284 | * upload, so we don't know the address yet. | |
285 | */ | |
286 | usb->address = libusb_get_device_address(devlist[i]); | |
287 | } else { | |
288 | sr_err("Failed to open device: %s.", | |
289 | libusb_error_name(ret)); | |
290 | break; | |
291 | } | |
292 | ||
0c30b35f SY |
293 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
294 | if (ret == LIBUSB_ERROR_BUSY) { | |
295 | sr_err("Unable to claim USB interface. Another " | |
296 | "program or driver has already claimed it."); | |
297 | break; | |
298 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
299 | sr_err("Device has been disconnected."); | |
300 | break; | |
301 | } else if (ret != 0) { | |
302 | sr_err("Unable to claim interface: %s.", | |
303 | libusb_error_name(ret)); | |
304 | break; | |
305 | } | |
306 | ||
96484e22 | 307 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
308 | sr_err("Failed to init device."); |
309 | break; | |
310 | } | |
311 | ||
5eea4305 | 312 | sdi->status = SR_ST_ACTIVE; |
ce7d3578 SA |
313 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
314 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
315 | |
316 | break; | |
317 | } | |
318 | libusb_free_device_list(devlist, 1); | |
319 | ||
0c30b35f SY |
320 | if (sdi->status != SR_ST_ACTIVE) { |
321 | if (usb->devhdl) { | |
322 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
323 | libusb_close(usb->devhdl); | |
324 | usb->devhdl = NULL; | |
325 | } | |
5eea4305 | 326 | return SR_ERR; |
0c30b35f | 327 | } |
5eea4305 MC |
328 | |
329 | return SR_OK; | |
330 | } | |
331 | ||
c463dcf0 MC |
332 | static int dev_open(struct sr_dev_inst *sdi) |
333 | { | |
5eea4305 MC |
334 | struct dev_context *devc; |
335 | int ret; | |
336 | int64_t timediff_us, timediff_ms; | |
337 | ||
338 | devc = sdi->priv; | |
5eea4305 MC |
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 | ||
5eea4305 MC |
374 | if (devc->cur_samplerate == 0) { |
375 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 376 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 377 | } |
c463dcf0 MC |
378 | |
379 | return SR_OK; | |
380 | } | |
381 | ||
382 | static int dev_close(struct sr_dev_inst *sdi) | |
383 | { | |
5eea4305 | 384 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 385 | |
5eea4305 | 386 | usb = sdi->conn; |
98fec29e | 387 | if (!usb->devhdl) |
5eea4305 | 388 | return SR_ERR; |
c463dcf0 | 389 | |
ce7d3578 SA |
390 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
391 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
392 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
393 | libusb_close(usb->devhdl); | |
394 | usb->devhdl = NULL; | |
c463dcf0 MC |
395 | sdi->status = SR_ST_INACTIVE; |
396 | ||
397 | return SR_OK; | |
398 | } | |
399 | ||
584560f1 | 400 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 401 | const struct sr_channel_group *cg) |
c463dcf0 | 402 | { |
7b5daad4 | 403 | struct dev_context *devc; |
b117363a | 404 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 405 | GVariant *range[2]; |
b117363a | 406 | char str[128]; |
c463dcf0 | 407 | int ret; |
96484e22 | 408 | unsigned int i; |
c463dcf0 | 409 | |
53b4680f | 410 | (void)cg; |
d3c74a6f | 411 | |
c463dcf0 MC |
412 | ret = SR_OK; |
413 | switch (key) { | |
b117363a MC |
414 | case SR_CONF_CONN: |
415 | if (!sdi || !sdi->conn) | |
416 | return SR_ERR_ARG; | |
417 | usb = sdi->conn; | |
418 | if (usb->address == 255) | |
419 | /* Device still needs to re-enumerate after firmware | |
420 | * upload, so we don't know its (future) address. */ | |
421 | return SR_ERR; | |
422 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
423 | *data = g_variant_new_string(str); | |
424 | break; | |
7b5daad4 MC |
425 | case SR_CONF_SAMPLERATE: |
426 | if (!sdi) | |
427 | return SR_ERR; | |
428 | devc = sdi->priv; | |
429 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
430 | break; | |
5a971f66 AJ |
431 | case SR_CONF_CAPTURE_RATIO: |
432 | if (!sdi) | |
433 | return SR_ERR; | |
434 | devc = sdi->priv; | |
435 | *data = g_variant_new_uint64(devc->capture_ratio); | |
436 | break; | |
db11d7d2 MC |
437 | case SR_CONF_VOLTAGE_THRESHOLD: |
438 | if (!sdi) | |
439 | return SR_ERR; | |
440 | devc = sdi->priv; | |
441 | ret = SR_ERR; | |
96484e22 UH |
442 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
443 | if (devc->selected_voltage_range != | |
444 | volt_thresholds[i].range) | |
445 | continue; | |
446 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
447 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
448 | *data = g_variant_new_tuple(range, 2); | |
449 | ret = SR_OK; | |
450 | break; | |
451 | } | |
db11d7d2 | 452 | break; |
c463dcf0 MC |
453 | default: |
454 | return SR_ERR_NA; | |
455 | } | |
456 | ||
457 | return ret; | |
458 | } | |
459 | ||
584560f1 | 460 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 461 | const struct sr_channel_group *cg) |
c463dcf0 | 462 | { |
7b5daad4 | 463 | struct dev_context *devc; |
db11d7d2 | 464 | gdouble low, high; |
c463dcf0 | 465 | int ret; |
96484e22 | 466 | unsigned int i; |
c463dcf0 | 467 | |
53b4680f | 468 | (void)cg; |
d3c74a6f | 469 | |
c463dcf0 MC |
470 | if (sdi->status != SR_ST_ACTIVE) |
471 | return SR_ERR_DEV_CLOSED; | |
472 | ||
7b5daad4 MC |
473 | devc = sdi->priv; |
474 | ||
c463dcf0 MC |
475 | ret = SR_OK; |
476 | switch (key) { | |
7b5daad4 MC |
477 | case SR_CONF_SAMPLERATE: |
478 | devc->cur_samplerate = g_variant_get_uint64(data); | |
479 | break; | |
480 | case SR_CONF_LIMIT_SAMPLES: | |
481 | devc->limit_samples = g_variant_get_uint64(data); | |
482 | break; | |
5a971f66 AJ |
483 | case SR_CONF_CAPTURE_RATIO: |
484 | devc->capture_ratio = g_variant_get_uint64(data); | |
a5c38703 | 485 | ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK; |
5a971f66 | 486 | break; |
db11d7d2 MC |
487 | case SR_CONF_VOLTAGE_THRESHOLD: |
488 | g_variant_get(data, "(dd)", &low, &high); | |
489 | ret = SR_ERR_ARG; | |
490 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
491 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
492 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
493 | devc->selected_voltage_range = | |
494 | volt_thresholds[i].range; | |
495 | ret = SR_OK; | |
496 | break; | |
497 | } | |
498 | } | |
499 | break; | |
c463dcf0 MC |
500 | default: |
501 | ret = SR_ERR_NA; | |
502 | } | |
503 | ||
504 | return ret; | |
505 | } | |
506 | ||
584560f1 | 507 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 508 | const struct sr_channel_group *cg) |
c463dcf0 | 509 | { |
db11d7d2 | 510 | GVariant *gvar, *range[2]; |
7b5daad4 | 511 | GVariantBuilder gvb; |
c463dcf0 | 512 | int ret; |
96484e22 | 513 | unsigned int i; |
c463dcf0 MC |
514 | |
515 | (void)sdi; | |
53b4680f | 516 | (void)cg; |
c463dcf0 MC |
517 | |
518 | ret = SR_OK; | |
519 | switch (key) { | |
b117363a | 520 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 521 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 522 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
b117363a MC |
523 | break; |
524 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 525 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 526 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
b117363a | 527 | break; |
7b5daad4 MC |
528 | case SR_CONF_SAMPLERATE: |
529 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
530 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
531 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
532 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
533 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
534 | break; |
535 | case SR_CONF_VOLTAGE_THRESHOLD: | |
536 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
537 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
538 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
539 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
540 | gvar = g_variant_new_tuple(range, 2); | |
541 | g_variant_builder_add_value(&gvb, gvar); | |
542 | } | |
543 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 544 | break; |
863357fb BV |
545 | case SR_CONF_TRIGGER_MATCH: |
546 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
547 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
548 | sizeof(int32_t)); | |
549 | break; | |
c463dcf0 MC |
550 | default: |
551 | return SR_ERR_NA; | |
552 | } | |
553 | ||
554 | return ret; | |
555 | } | |
556 | ||
7b5daad4 MC |
557 | static void abort_acquisition(struct dev_context *devc) |
558 | { | |
559 | int i; | |
560 | ||
863357fb | 561 | devc->sent_samples = -1; |
7b5daad4 MC |
562 | |
563 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
564 | if (devc->transfers[i]) | |
565 | libusb_cancel_transfer(devc->transfers[i]); | |
566 | } | |
567 | } | |
568 | ||
569 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
570 | { | |
571 | return devc->cur_samplerate * devc->num_channels / 8000; | |
572 | } | |
573 | ||
574 | static size_t get_buffer_size(struct dev_context *devc) | |
575 | { | |
576 | size_t s; | |
577 | ||
578 | /* | |
579 | * The buffer should be large enough to hold 10ms of data and | |
580 | * a multiple of 512. | |
581 | */ | |
582 | s = 10 * bytes_per_ms(devc); | |
583 | return (s + 511) & ~511; | |
584 | } | |
585 | ||
586 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
587 | { | |
588 | unsigned int n; | |
589 | ||
590 | /* Total buffer size should be able to hold about 500ms of data. */ | |
591 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
592 | ||
593 | if (n > NUM_SIMUL_TRANSFERS) | |
594 | return NUM_SIMUL_TRANSFERS; | |
595 | ||
596 | return n; | |
597 | } | |
598 | ||
599 | static unsigned int get_timeout(struct dev_context *devc) | |
600 | { | |
601 | size_t total_size; | |
602 | unsigned int timeout; | |
603 | ||
604 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
605 | timeout = total_size / bytes_per_ms(devc); | |
606 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
607 | } | |
608 | ||
ba7dd8bb | 609 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
610 | { |
611 | struct dev_context *devc; | |
ba7dd8bb | 612 | struct sr_channel *ch; |
7b5daad4 | 613 | GSList *l; |
ba7dd8bb | 614 | uint16_t channel_bit; |
7b5daad4 MC |
615 | |
616 | devc = sdi->priv; | |
617 | ||
618 | devc->cur_channels = 0; | |
619 | devc->num_channels = 0; | |
ba7dd8bb UH |
620 | for (l = sdi->channels; l; l = l->next) { |
621 | ch = (struct sr_channel *)l->data; | |
622 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
623 | continue; |
624 | ||
ba7dd8bb | 625 | channel_bit = 1 << (ch->index); |
7b5daad4 | 626 | |
ba7dd8bb | 627 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
628 | |
629 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
630 | /* |
631 | * Output logic data should be stored in little endian format. | |
632 | * To speed things up during conversion, do the switcharoo | |
633 | * here instead. | |
634 | */ | |
ba7dd8bb | 635 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
636 | #endif |
637 | ||
ba7dd8bb | 638 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
639 | } |
640 | ||
641 | return SR_OK; | |
642 | } | |
643 | ||
644 | static int receive_data(int fd, int revents, void *cb_data) | |
645 | { | |
646 | struct timeval tv; | |
647 | struct dev_context *devc; | |
648 | struct drv_context *drvc; | |
649 | const struct sr_dev_inst *sdi; | |
4f840ce9 | 650 | struct sr_dev_driver *di; |
7b5daad4 MC |
651 | |
652 | (void)fd; | |
653 | (void)revents; | |
654 | ||
655 | sdi = cb_data; | |
4f840ce9 | 656 | di = sdi->driver; |
41812aca | 657 | drvc = di->context; |
7b5daad4 MC |
658 | devc = sdi->priv; |
659 | ||
660 | tv.tv_sec = tv.tv_usec = 0; | |
661 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
662 | ||
863357fb | 663 | if (devc->sent_samples == -2) { |
96484e22 | 664 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
665 | abort_acquisition(devc); |
666 | } | |
667 | ||
668 | return TRUE; | |
669 | } | |
670 | ||
695dc859 | 671 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
c463dcf0 | 672 | { |
4f840ce9 | 673 | struct sr_dev_driver *di = sdi->driver; |
7b5daad4 MC |
674 | struct dev_context *devc; |
675 | struct drv_context *drvc; | |
676 | struct sr_usb_dev_inst *usb; | |
863357fb | 677 | struct sr_trigger *trigger; |
7b5daad4 | 678 | struct libusb_transfer *transfer; |
7b5daad4 MC |
679 | unsigned int i, timeout, num_transfers; |
680 | int ret; | |
681 | unsigned char *buf; | |
682 | size_t size, convsize; | |
c463dcf0 MC |
683 | |
684 | if (sdi->status != SR_ST_ACTIVE) | |
685 | return SR_ERR_DEV_CLOSED; | |
686 | ||
41812aca | 687 | drvc = di->context; |
7b5daad4 MC |
688 | devc = sdi->priv; |
689 | usb = sdi->conn; | |
690 | ||
96484e22 | 691 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
692 | if (configure_channels(sdi) != SR_OK) { |
693 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
694 | return SR_ERR; |
695 | } | |
696 | ||
863357fb | 697 | devc->sent_samples = 0; |
7b5daad4 MC |
698 | devc->empty_transfer_count = 0; |
699 | devc->cur_channel = 0; | |
700 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
701 | ||
0812c40e | 702 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
5a971f66 AJ |
703 | int pre_trigger_samples = 0; |
704 | if (devc->limit_samples > 0) | |
705 | pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100; | |
706 | devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples); | |
98fec29e | 707 | if (!devc->stl) |
5a971f66 | 708 | return SR_ERR_MALLOC; |
863357fb BV |
709 | devc->trigger_fired = FALSE; |
710 | } else | |
711 | devc->trigger_fired = TRUE; | |
712 | ||
7b5daad4 MC |
713 | timeout = get_timeout(devc); |
714 | num_transfers = get_number_of_transfers(devc); | |
715 | size = get_buffer_size(devc); | |
716 | convsize = (size / devc->num_channels + 2) * 16; | |
717 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
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, | |
102f1239 | 754 | logic16_receive_transfer, (void *)sdi, 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 | ||
6c60facc ML |
767 | devc->ctx = drvc->sr_ctx; |
768 | ||
102f1239 | 769 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 | 770 | |
695dc859 | 771 | std_session_send_df_header(sdi, LOG_PREFIX); |
7b5daad4 | 772 | |
96484e22 | 773 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
774 | abort_acquisition(devc); |
775 | return ret; | |
776 | } | |
c463dcf0 MC |
777 | |
778 | return SR_OK; | |
779 | } | |
780 | ||
695dc859 | 781 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
c463dcf0 | 782 | { |
7b5daad4 MC |
783 | int ret; |
784 | ||
c463dcf0 MC |
785 | if (sdi->status != SR_ST_ACTIVE) |
786 | return SR_ERR_DEV_CLOSED; | |
787 | ||
96484e22 | 788 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 789 | |
7b5daad4 MC |
790 | abort_acquisition(sdi->priv); |
791 | ||
792 | return ret; | |
c463dcf0 MC |
793 | } |
794 | ||
795 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
796 | .name = "saleae-logic16", | |
797 | .longname = "Saleae Logic16", | |
798 | .api_version = 1, | |
799 | .init = init, | |
700d6b64 | 800 | .cleanup = std_cleanup, |
c463dcf0 | 801 | .scan = scan, |
c01bf34c | 802 | .dev_list = std_dev_list, |
a6630742 | 803 | .dev_clear = NULL, |
c463dcf0 MC |
804 | .config_get = config_get, |
805 | .config_set = config_set, | |
806 | .config_list = config_list, | |
807 | .dev_open = dev_open, | |
808 | .dev_close = dev_close, | |
809 | .dev_acquisition_start = dev_acquisition_start, | |
810 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 811 | .context = NULL, |
c463dcf0 | 812 | }; |