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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 | ||
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, | |
b117363a MC |
56 | }; |
57 | ||
863357fb BV |
58 | static const int32_t soft_trigger_matches[] = { |
59 | SR_TRIGGER_ZERO, | |
60 | SR_TRIGGER_ONE, | |
61 | SR_TRIGGER_RISING, | |
62 | SR_TRIGGER_FALLING, | |
63 | SR_TRIGGER_EDGE, | |
64 | }; | |
65 | ||
ba7dd8bb | 66 | static const char *channel_names[] = { |
f6a21fa5 MC |
67 | "0", "1", "2", "3", "4", "5", "6", "7", "8", |
68 | "9", "10", "11", "12", "13", "14", "15", | |
69 | NULL, | |
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 | ||
c463dcf0 MC |
98 | static int init(struct sr_context *sr_ctx) |
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. */ | |
114 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
115 | break; | |
116 | ||
117 | if (libusb_open(dev, &hdl) != 0) | |
118 | break; | |
119 | ||
120 | if (libusb_get_string_descriptor_ascii(hdl, | |
121 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
122 | break; | |
123 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
124 | break; | |
125 | ||
126 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 127 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
128 | break; |
129 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
130 | break; | |
131 | ||
132 | /* If we made it here, it must be a configured Logic16. */ | |
133 | ret = TRUE; | |
134 | } | |
135 | if (hdl) | |
136 | libusb_close(hdl); | |
137 | ||
138 | return ret; | |
139 | } | |
140 | ||
c463dcf0 MC |
141 | static GSList *scan(GSList *options) |
142 | { | |
143 | struct drv_context *drvc; | |
f6a21fa5 MC |
144 | struct dev_context *devc; |
145 | struct sr_dev_inst *sdi; | |
5eea4305 | 146 | struct sr_usb_dev_inst *usb; |
ba7dd8bb | 147 | struct sr_channel *ch; |
5eea4305 MC |
148 | struct sr_config *src; |
149 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
150 | struct libusb_device_descriptor des; |
151 | libusb_device **devlist; | |
ce7d3578 | 152 | int ret, i, j; |
5eea4305 | 153 | const char *conn; |
ce7d3578 | 154 | char connection_id[64]; |
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 | ||
ce7d3578 SA |
196 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
197 | ||
f6a21fa5 MC |
198 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
199 | continue; | |
200 | ||
aac29cc1 | 201 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
202 | sdi->status = SR_ST_INITIALIZING; |
203 | sdi->vendor = g_strdup("Saleae"); | |
204 | sdi->model = g_strdup("Logic16"); | |
f6a21fa5 | 205 | sdi->driver = di; |
ce7d3578 | 206 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 207 | |
ba7dd8bb | 208 | for (j = 0; channel_names[j]; j++) { |
c368e6f3 UH |
209 | ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, |
210 | channel_names[j]); | |
ba7dd8bb | 211 | sdi->channels = g_slist_append(sdi->channels, ch); |
f6a21fa5 MC |
212 | } |
213 | ||
f57d8ffe | 214 | devc = g_malloc0(sizeof(struct dev_context)); |
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 | |
ce7d3578 | 234 | sr_err("Firmware upload failed."); |
5eea4305 | 235 | sdi->inst_type = SR_INST_USB; |
96484e22 UH |
236 | sdi->conn = sr_usb_dev_inst_new( |
237 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 238 | } |
f6a21fa5 MC |
239 | } |
240 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 241 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
242 | |
243 | return devices; | |
244 | } | |
245 | ||
246 | static GSList *dev_list(void) | |
247 | { | |
87b537ce | 248 | return ((struct drv_context *)(di->priv))->instances; |
c463dcf0 MC |
249 | } |
250 | ||
5eea4305 MC |
251 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
252 | { | |
253 | libusb_device **devlist; | |
254 | struct sr_usb_dev_inst *usb; | |
255 | struct libusb_device_descriptor des; | |
5eea4305 | 256 | struct drv_context *drvc; |
ce7d3578 SA |
257 | int ret, i, device_count; |
258 | char connection_id[64]; | |
5eea4305 MC |
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 | ||
5eea4305 MC |
267 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
268 | if (device_count < 0) { | |
269 | sr_err("Failed to get device list: %s.", | |
270 | libusb_error_name(device_count)); | |
271 | return SR_ERR; | |
272 | } | |
273 | ||
274 | for (i = 0; i < device_count; i++) { | |
275 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
276 | sr_err("Failed to get device descriptor: %s.", | |
277 | libusb_error_name(ret)); | |
278 | continue; | |
279 | } | |
280 | ||
96484e22 | 281 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
282 | continue; |
283 | ||
ce7d3578 SA |
284 | if ((sdi->status == SR_ST_INITIALIZING) || |
285 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 286 | /* |
ce7d3578 | 287 | * Check device by its physical USB bus/port address. |
5eea4305 | 288 | */ |
ce7d3578 SA |
289 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
290 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
291 | /* This is not the one. */ |
292 | continue; | |
293 | } | |
294 | ||
295 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
296 | if (usb->address == 0xff) | |
297 | /* | |
298 | * First time we touch this device after FW | |
299 | * upload, so we don't know the address yet. | |
300 | */ | |
301 | usb->address = libusb_get_device_address(devlist[i]); | |
302 | } else { | |
303 | sr_err("Failed to open device: %s.", | |
304 | libusb_error_name(ret)); | |
305 | break; | |
306 | } | |
307 | ||
0c30b35f SY |
308 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
309 | if (ret == LIBUSB_ERROR_BUSY) { | |
310 | sr_err("Unable to claim USB interface. Another " | |
311 | "program or driver has already claimed it."); | |
312 | break; | |
313 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
314 | sr_err("Device has been disconnected."); | |
315 | break; | |
316 | } else if (ret != 0) { | |
317 | sr_err("Unable to claim interface: %s.", | |
318 | libusb_error_name(ret)); | |
319 | break; | |
320 | } | |
321 | ||
96484e22 | 322 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
323 | sr_err("Failed to init device."); |
324 | break; | |
325 | } | |
326 | ||
5eea4305 | 327 | sdi->status = SR_ST_ACTIVE; |
ce7d3578 SA |
328 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
329 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
330 | |
331 | break; | |
332 | } | |
333 | libusb_free_device_list(devlist, 1); | |
334 | ||
0c30b35f SY |
335 | if (sdi->status != SR_ST_ACTIVE) { |
336 | if (usb->devhdl) { | |
337 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
338 | libusb_close(usb->devhdl); | |
339 | usb->devhdl = NULL; | |
340 | } | |
5eea4305 | 341 | return SR_ERR; |
0c30b35f | 342 | } |
5eea4305 MC |
343 | |
344 | return SR_OK; | |
345 | } | |
346 | ||
c463dcf0 MC |
347 | static int dev_open(struct sr_dev_inst *sdi) |
348 | { | |
5eea4305 MC |
349 | struct dev_context *devc; |
350 | int ret; | |
351 | int64_t timediff_us, timediff_ms; | |
352 | ||
353 | devc = sdi->priv; | |
5eea4305 MC |
354 | |
355 | /* | |
356 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
357 | * milliseconds for the FX2 to renumerate. | |
358 | */ | |
359 | ret = SR_ERR; | |
360 | if (devc->fw_updated > 0) { | |
361 | sr_info("Waiting for device to reset."); | |
362 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
363 | g_usleep(300 * 1000); | |
364 | timediff_ms = 0; | |
365 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
366 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
367 | break; | |
368 | g_usleep(100 * 1000); | |
369 | ||
370 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
371 | timediff_ms = timediff_us / 1000; | |
372 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
373 | } | |
374 | if (ret != SR_OK) { | |
375 | sr_err("Device failed to renumerate."); | |
376 | return SR_ERR; | |
377 | } | |
378 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
379 | } else { | |
380 | sr_info("Firmware upload was not needed."); | |
381 | ret = logic16_dev_open(sdi); | |
382 | } | |
383 | ||
384 | if (ret != SR_OK) { | |
385 | sr_err("Unable to open device."); | |
386 | return SR_ERR; | |
387 | } | |
388 | ||
5eea4305 MC |
389 | if (devc->cur_samplerate == 0) { |
390 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 391 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 392 | } |
c463dcf0 MC |
393 | |
394 | return SR_OK; | |
395 | } | |
396 | ||
397 | static int dev_close(struct sr_dev_inst *sdi) | |
398 | { | |
5eea4305 | 399 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 400 | |
5eea4305 MC |
401 | usb = sdi->conn; |
402 | if (usb->devhdl == NULL) | |
403 | return SR_ERR; | |
c463dcf0 | 404 | |
ce7d3578 SA |
405 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
406 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
407 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
408 | libusb_close(usb->devhdl); | |
409 | usb->devhdl = NULL; | |
c463dcf0 MC |
410 | sdi->status = SR_ST_INACTIVE; |
411 | ||
412 | return SR_OK; | |
413 | } | |
414 | ||
415 | static int cleanup(void) | |
416 | { | |
f6a21fa5 MC |
417 | int ret; |
418 | struct drv_context *drvc; | |
c463dcf0 | 419 | |
f6a21fa5 MC |
420 | if (!(drvc = di->priv)) |
421 | /* Can get called on an unused driver, doesn't matter. */ | |
422 | return SR_OK; | |
c463dcf0 | 423 | |
a6630742 | 424 | ret = std_dev_clear(di, NULL); |
f6a21fa5 MC |
425 | g_free(drvc); |
426 | di->priv = NULL; | |
427 | ||
428 | return ret; | |
c463dcf0 MC |
429 | } |
430 | ||
584560f1 | 431 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 432 | const struct sr_channel_group *cg) |
c463dcf0 | 433 | { |
7b5daad4 | 434 | struct dev_context *devc; |
b117363a | 435 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 436 | GVariant *range[2]; |
b117363a | 437 | char str[128]; |
c463dcf0 | 438 | int ret; |
96484e22 | 439 | unsigned int i; |
c463dcf0 | 440 | |
53b4680f | 441 | (void)cg; |
d3c74a6f | 442 | |
c463dcf0 MC |
443 | ret = SR_OK; |
444 | switch (key) { | |
b117363a MC |
445 | case SR_CONF_CONN: |
446 | if (!sdi || !sdi->conn) | |
447 | return SR_ERR_ARG; | |
448 | usb = sdi->conn; | |
449 | if (usb->address == 255) | |
450 | /* Device still needs to re-enumerate after firmware | |
451 | * upload, so we don't know its (future) address. */ | |
452 | return SR_ERR; | |
453 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
454 | *data = g_variant_new_string(str); | |
455 | break; | |
7b5daad4 MC |
456 | case SR_CONF_SAMPLERATE: |
457 | if (!sdi) | |
458 | return SR_ERR; | |
459 | devc = sdi->priv; | |
460 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
461 | break; | |
db11d7d2 MC |
462 | case SR_CONF_VOLTAGE_THRESHOLD: |
463 | if (!sdi) | |
464 | return SR_ERR; | |
465 | devc = sdi->priv; | |
466 | ret = SR_ERR; | |
96484e22 UH |
467 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
468 | if (devc->selected_voltage_range != | |
469 | volt_thresholds[i].range) | |
470 | continue; | |
471 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
472 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
473 | *data = g_variant_new_tuple(range, 2); | |
474 | ret = SR_OK; | |
475 | break; | |
476 | } | |
db11d7d2 | 477 | break; |
c463dcf0 MC |
478 | default: |
479 | return SR_ERR_NA; | |
480 | } | |
481 | ||
482 | return ret; | |
483 | } | |
484 | ||
584560f1 | 485 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 486 | const struct sr_channel_group *cg) |
c463dcf0 | 487 | { |
7b5daad4 | 488 | struct dev_context *devc; |
db11d7d2 | 489 | gdouble low, high; |
c463dcf0 | 490 | int ret; |
96484e22 | 491 | unsigned int i; |
c463dcf0 | 492 | |
53b4680f | 493 | (void)cg; |
d3c74a6f | 494 | |
c463dcf0 MC |
495 | if (sdi->status != SR_ST_ACTIVE) |
496 | return SR_ERR_DEV_CLOSED; | |
497 | ||
7b5daad4 MC |
498 | devc = sdi->priv; |
499 | ||
c463dcf0 MC |
500 | ret = SR_OK; |
501 | switch (key) { | |
7b5daad4 MC |
502 | case SR_CONF_SAMPLERATE: |
503 | devc->cur_samplerate = g_variant_get_uint64(data); | |
504 | break; | |
505 | case SR_CONF_LIMIT_SAMPLES: | |
506 | devc->limit_samples = g_variant_get_uint64(data); | |
507 | break; | |
db11d7d2 MC |
508 | case SR_CONF_VOLTAGE_THRESHOLD: |
509 | g_variant_get(data, "(dd)", &low, &high); | |
510 | ret = SR_ERR_ARG; | |
511 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
512 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
513 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
514 | devc->selected_voltage_range = | |
515 | volt_thresholds[i].range; | |
516 | ret = SR_OK; | |
517 | break; | |
518 | } | |
519 | } | |
520 | break; | |
c463dcf0 MC |
521 | default: |
522 | ret = SR_ERR_NA; | |
523 | } | |
524 | ||
525 | return ret; | |
526 | } | |
527 | ||
584560f1 | 528 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 529 | const struct sr_channel_group *cg) |
c463dcf0 | 530 | { |
db11d7d2 | 531 | GVariant *gvar, *range[2]; |
7b5daad4 | 532 | GVariantBuilder gvb; |
c463dcf0 | 533 | int ret; |
96484e22 | 534 | unsigned int i; |
c463dcf0 MC |
535 | |
536 | (void)sdi; | |
53b4680f | 537 | (void)cg; |
c463dcf0 MC |
538 | |
539 | ret = SR_OK; | |
540 | switch (key) { | |
b117363a | 541 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 542 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 543 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
b117363a MC |
544 | break; |
545 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 546 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 547 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
b117363a | 548 | break; |
7b5daad4 MC |
549 | case SR_CONF_SAMPLERATE: |
550 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
551 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
552 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
553 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
554 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
555 | break; |
556 | case SR_CONF_VOLTAGE_THRESHOLD: | |
557 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
558 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
559 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
560 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
561 | gvar = g_variant_new_tuple(range, 2); | |
562 | g_variant_builder_add_value(&gvb, gvar); | |
563 | } | |
564 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 565 | break; |
863357fb BV |
566 | case SR_CONF_TRIGGER_MATCH: |
567 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
568 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
569 | sizeof(int32_t)); | |
570 | break; | |
c463dcf0 MC |
571 | default: |
572 | return SR_ERR_NA; | |
573 | } | |
574 | ||
575 | return ret; | |
576 | } | |
577 | ||
7b5daad4 MC |
578 | static void abort_acquisition(struct dev_context *devc) |
579 | { | |
580 | int i; | |
581 | ||
863357fb | 582 | devc->sent_samples = -1; |
7b5daad4 MC |
583 | |
584 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
585 | if (devc->transfers[i]) | |
586 | libusb_cancel_transfer(devc->transfers[i]); | |
587 | } | |
588 | } | |
589 | ||
590 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
591 | { | |
592 | return devc->cur_samplerate * devc->num_channels / 8000; | |
593 | } | |
594 | ||
595 | static size_t get_buffer_size(struct dev_context *devc) | |
596 | { | |
597 | size_t s; | |
598 | ||
599 | /* | |
600 | * The buffer should be large enough to hold 10ms of data and | |
601 | * a multiple of 512. | |
602 | */ | |
603 | s = 10 * bytes_per_ms(devc); | |
604 | return (s + 511) & ~511; | |
605 | } | |
606 | ||
607 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
608 | { | |
609 | unsigned int n; | |
610 | ||
611 | /* Total buffer size should be able to hold about 500ms of data. */ | |
612 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
613 | ||
614 | if (n > NUM_SIMUL_TRANSFERS) | |
615 | return NUM_SIMUL_TRANSFERS; | |
616 | ||
617 | return n; | |
618 | } | |
619 | ||
620 | static unsigned int get_timeout(struct dev_context *devc) | |
621 | { | |
622 | size_t total_size; | |
623 | unsigned int timeout; | |
624 | ||
625 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
626 | timeout = total_size / bytes_per_ms(devc); | |
627 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
628 | } | |
629 | ||
ba7dd8bb | 630 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
631 | { |
632 | struct dev_context *devc; | |
ba7dd8bb | 633 | struct sr_channel *ch; |
7b5daad4 | 634 | GSList *l; |
ba7dd8bb | 635 | uint16_t channel_bit; |
7b5daad4 MC |
636 | |
637 | devc = sdi->priv; | |
638 | ||
639 | devc->cur_channels = 0; | |
640 | devc->num_channels = 0; | |
ba7dd8bb UH |
641 | for (l = sdi->channels; l; l = l->next) { |
642 | ch = (struct sr_channel *)l->data; | |
643 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
644 | continue; |
645 | ||
ba7dd8bb | 646 | channel_bit = 1 << (ch->index); |
7b5daad4 | 647 | |
ba7dd8bb | 648 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
649 | |
650 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
651 | /* |
652 | * Output logic data should be stored in little endian format. | |
653 | * To speed things up during conversion, do the switcharoo | |
654 | * here instead. | |
655 | */ | |
ba7dd8bb | 656 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
657 | #endif |
658 | ||
ba7dd8bb | 659 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
660 | } |
661 | ||
662 | return SR_OK; | |
663 | } | |
664 | ||
665 | static int receive_data(int fd, int revents, void *cb_data) | |
666 | { | |
667 | struct timeval tv; | |
668 | struct dev_context *devc; | |
669 | struct drv_context *drvc; | |
670 | const struct sr_dev_inst *sdi; | |
671 | ||
672 | (void)fd; | |
673 | (void)revents; | |
674 | ||
675 | sdi = cb_data; | |
676 | drvc = di->priv; | |
677 | devc = sdi->priv; | |
678 | ||
679 | tv.tv_sec = tv.tv_usec = 0; | |
680 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
681 | ||
863357fb | 682 | if (devc->sent_samples == -2) { |
96484e22 | 683 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
684 | abort_acquisition(devc); |
685 | } | |
686 | ||
687 | return TRUE; | |
688 | } | |
689 | ||
96484e22 | 690 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
c463dcf0 | 691 | { |
7b5daad4 MC |
692 | struct dev_context *devc; |
693 | struct drv_context *drvc; | |
694 | struct sr_usb_dev_inst *usb; | |
863357fb | 695 | struct sr_trigger *trigger; |
7b5daad4 | 696 | struct libusb_transfer *transfer; |
7b5daad4 MC |
697 | unsigned int i, timeout, num_transfers; |
698 | int ret; | |
699 | unsigned char *buf; | |
700 | size_t size, convsize; | |
c463dcf0 MC |
701 | |
702 | if (sdi->status != SR_ST_ACTIVE) | |
703 | return SR_ERR_DEV_CLOSED; | |
704 | ||
7b5daad4 MC |
705 | drvc = di->priv; |
706 | devc = sdi->priv; | |
707 | usb = sdi->conn; | |
708 | ||
96484e22 | 709 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
710 | if (configure_channels(sdi) != SR_OK) { |
711 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
712 | return SR_ERR; |
713 | } | |
714 | ||
715 | devc->cb_data = cb_data; | |
863357fb | 716 | devc->sent_samples = 0; |
7b5daad4 MC |
717 | devc->empty_transfer_count = 0; |
718 | devc->cur_channel = 0; | |
719 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
720 | ||
0812c40e | 721 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
fe5a7355 | 722 | devc->stl = soft_trigger_logic_new(sdi, trigger, 0); |
863357fb BV |
723 | devc->trigger_fired = FALSE; |
724 | } else | |
725 | devc->trigger_fired = TRUE; | |
726 | ||
7b5daad4 MC |
727 | timeout = get_timeout(devc); |
728 | num_transfers = get_number_of_transfers(devc); | |
729 | size = get_buffer_size(devc); | |
730 | convsize = (size / devc->num_channels + 2) * 16; | |
731 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
732 | |
733 | devc->convbuffer_size = convsize; | |
734 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
735 | sr_err("Conversion buffer malloc failed."); | |
736 | return SR_ERR_MALLOC; | |
737 | } | |
738 | ||
739 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
740 | if (!devc->transfers) { | |
741 | sr_err("USB transfers malloc failed."); | |
742 | g_free(devc->convbuffer); | |
743 | return SR_ERR_MALLOC; | |
744 | } | |
745 | ||
96484e22 UH |
746 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
747 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
748 | g_free(devc->transfers); |
749 | g_free(devc->convbuffer); | |
750 | return ret; | |
751 | } | |
752 | ||
753 | devc->num_transfers = num_transfers; | |
754 | for (i = 0; i < num_transfers; i++) { | |
755 | if (!(buf = g_try_malloc(size))) { | |
756 | sr_err("USB transfer buffer malloc failed."); | |
757 | if (devc->submitted_transfers) | |
758 | abort_acquisition(devc); | |
759 | else { | |
760 | g_free(devc->transfers); | |
761 | g_free(devc->convbuffer); | |
762 | } | |
763 | return SR_ERR_MALLOC; | |
764 | } | |
765 | transfer = libusb_alloc_transfer(0); | |
766 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
767 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 768 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
769 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
770 | sr_err("Failed to submit transfer: %s.", | |
771 | libusb_error_name(ret)); | |
772 | libusb_free_transfer(transfer); | |
773 | g_free(buf); | |
774 | abort_acquisition(devc); | |
775 | return SR_ERR; | |
776 | } | |
777 | devc->transfers[i] = transfer; | |
778 | devc->submitted_transfers++; | |
779 | } | |
780 | ||
6c60facc ML |
781 | devc->ctx = drvc->sr_ctx; |
782 | ||
102f1239 | 783 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 MC |
784 | |
785 | /* Send header packet to the session bus. */ | |
786 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
787 | ||
96484e22 | 788 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
789 | abort_acquisition(devc); |
790 | return ret; | |
791 | } | |
c463dcf0 MC |
792 | |
793 | return SR_OK; | |
794 | } | |
795 | ||
796 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
797 | { | |
7b5daad4 MC |
798 | int ret; |
799 | ||
c463dcf0 MC |
800 | (void)cb_data; |
801 | ||
802 | if (sdi->status != SR_ST_ACTIVE) | |
803 | return SR_ERR_DEV_CLOSED; | |
804 | ||
96484e22 | 805 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 806 | |
7b5daad4 MC |
807 | abort_acquisition(sdi->priv); |
808 | ||
809 | return ret; | |
c463dcf0 MC |
810 | } |
811 | ||
812 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
813 | .name = "saleae-logic16", | |
814 | .longname = "Saleae Logic16", | |
815 | .api_version = 1, | |
816 | .init = init, | |
817 | .cleanup = cleanup, | |
818 | .scan = scan, | |
819 | .dev_list = dev_list, | |
a6630742 | 820 | .dev_clear = NULL, |
c463dcf0 MC |
821 | .config_get = config_get, |
822 | .config_set = config_set, | |
823 | .config_list = config_list, | |
824 | .dev_open = dev_open, | |
825 | .dev_close = dev_close, | |
826 | .dev_acquisition_start = dev_acquisition_start, | |
827 | .dev_acquisition_stop = dev_acquisition_stop, | |
828 | .priv = NULL, | |
829 | }; |