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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 | 41 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info; |
c463dcf0 | 42 | |
a0e0bb41 | 43 | static const uint32_t scanopts[] = { |
b117363a MC |
44 | SR_CONF_CONN, |
45 | }; | |
46 | ||
f254bc4b | 47 | static const uint32_t devopts[] = { |
b117363a | 48 | SR_CONF_LOGIC_ANALYZER, |
b117363a | 49 | SR_CONF_CONTINUOUS, |
5827f61b BV |
50 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
51 | SR_CONF_CONN | SR_CONF_GET, | |
52 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
53 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
54 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
5a971f66 | 55 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, |
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", | |
f6a21fa5 | 69 | }; |
c463dcf0 | 70 | |
db11d7d2 MC |
71 | static const struct { |
72 | enum voltage_range range; | |
73 | gdouble low; | |
74 | gdouble high; | |
75 | } volt_thresholds[] = { | |
76 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
77 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
78 | }; | |
79 | ||
7b5daad4 MC |
80 | static const uint64_t samplerates[] = { |
81 | SR_KHZ(500), | |
82 | SR_MHZ(1), | |
83 | SR_MHZ(2), | |
84 | SR_MHZ(4), | |
85 | SR_MHZ(5), | |
86 | SR_MHZ(8), | |
87 | SR_MHZ(10), | |
88 | SR_KHZ(12500), | |
89 | SR_MHZ(16), | |
90 | SR_MHZ(25), | |
91 | SR_MHZ(32), | |
92 | SR_MHZ(40), | |
93 | SR_MHZ(80), | |
94 | SR_MHZ(100), | |
95 | }; | |
96 | ||
4f840ce9 | 97 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
c463dcf0 MC |
98 | { |
99 | return std_init(sr_ctx, di, LOG_PREFIX); | |
100 | } | |
101 | ||
5eea4305 MC |
102 | static gboolean check_conf_profile(libusb_device *dev) |
103 | { | |
104 | struct libusb_device_descriptor des; | |
105 | struct libusb_device_handle *hdl; | |
106 | gboolean ret; | |
107 | unsigned char strdesc[64]; | |
108 | ||
109 | hdl = NULL; | |
110 | ret = FALSE; | |
111 | while (!ret) { | |
112 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
113 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
114 | break; | |
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 UH |
150 | int ret; |
151 | unsigned int i, j; | |
5eea4305 | 152 | const char *conn; |
ce7d3578 | 153 | char connection_id[64]; |
c463dcf0 | 154 | |
c463dcf0 | 155 | drvc = di->priv; |
c463dcf0 | 156 | |
5eea4305 MC |
157 | conn = NULL; |
158 | for (l = options; l; l = l->next) { | |
159 | src = l->data; | |
160 | switch (src->key) { | |
161 | case SR_CONF_CONN: | |
162 | conn = g_variant_get_string(src->data, NULL); | |
163 | break; | |
164 | } | |
165 | } | |
166 | if (conn) | |
167 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
168 | else | |
169 | conn_devices = NULL; | |
170 | ||
171 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
172 | devices = NULL; |
173 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
174 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
175 | if (conn) { |
176 | usb = NULL; | |
177 | for (l = conn_devices; l; l = l->next) { | |
178 | usb = l->data; | |
179 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
180 | && usb->address == libusb_get_device_address(devlist[i])) | |
181 | break; | |
182 | } | |
183 | if (!l) | |
184 | /* This device matched none of the ones that | |
185 | * matched the conn specification. */ | |
186 | continue; | |
187 | } | |
188 | ||
96484e22 | 189 | if ((ret = libusb_get_device_descriptor(devlist[i], &des)) != 0) { |
5eea4305 MC |
190 | sr_warn("Failed to get device descriptor: %s.", |
191 | libusb_error_name(ret)); | |
f6a21fa5 MC |
192 | continue; |
193 | } | |
194 | ||
ce7d3578 SA |
195 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
196 | ||
f6a21fa5 MC |
197 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
198 | continue; | |
199 | ||
aac29cc1 | 200 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
201 | sdi->status = SR_ST_INITIALIZING; |
202 | sdi->vendor = g_strdup("Saleae"); | |
203 | sdi->model = g_strdup("Logic16"); | |
f6a21fa5 | 204 | sdi->driver = di; |
ce7d3578 | 205 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 206 | |
2cca921d | 207 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) |
5e23fcab | 208 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, |
c368e6f3 | 209 | channel_names[j]); |
f6a21fa5 | 210 | |
f57d8ffe | 211 | devc = g_malloc0(sizeof(struct dev_context)); |
db11d7d2 | 212 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 213 | sdi->priv = devc; |
f6a21fa5 MC |
214 | drvc->instances = g_slist_append(drvc->instances, sdi); |
215 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
216 | |
217 | if (check_conf_profile(devlist[i])) { | |
218 | /* Already has the firmware, so fix the new address. */ | |
219 | sr_dbg("Found a Logic16 device."); | |
220 | sdi->status = SR_ST_INACTIVE; | |
221 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
222 | sdi->conn = sr_usb_dev_inst_new( |
223 | libusb_get_bus_number(devlist[i]), | |
224 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 MC |
225 | } else { |
226 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
227 | FX2_FIRMWARE) == SR_OK) | |
228 | /* Store when this device's FW was updated. */ | |
229 | devc->fw_updated = g_get_monotonic_time(); | |
230 | else | |
ce7d3578 | 231 | sr_err("Firmware upload failed."); |
5eea4305 | 232 | sdi->inst_type = SR_INST_USB; |
96484e22 UH |
233 | sdi->conn = sr_usb_dev_inst_new( |
234 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 235 | } |
f6a21fa5 MC |
236 | } |
237 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 238 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
239 | |
240 | return devices; | |
241 | } | |
242 | ||
4f840ce9 | 243 | static GSList *dev_list(const struct sr_dev_driver *di) |
c463dcf0 | 244 | { |
87b537ce | 245 | return ((struct drv_context *)(di->priv))->instances; |
c463dcf0 MC |
246 | } |
247 | ||
5eea4305 MC |
248 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
249 | { | |
4f840ce9 | 250 | struct sr_dev_driver *di; |
5eea4305 MC |
251 | libusb_device **devlist; |
252 | struct sr_usb_dev_inst *usb; | |
253 | struct libusb_device_descriptor des; | |
5eea4305 | 254 | struct drv_context *drvc; |
ce7d3578 SA |
255 | int ret, i, device_count; |
256 | char connection_id[64]; | |
5eea4305 | 257 | |
4f840ce9 | 258 | di = sdi->driver; |
5eea4305 | 259 | drvc = di->priv; |
5eea4305 MC |
260 | usb = sdi->conn; |
261 | ||
262 | if (sdi->status == SR_ST_ACTIVE) | |
263 | /* Device is already in use. */ | |
264 | return SR_ERR; | |
265 | ||
5eea4305 MC |
266 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
267 | if (device_count < 0) { | |
268 | sr_err("Failed to get device list: %s.", | |
269 | libusb_error_name(device_count)); | |
270 | return SR_ERR; | |
271 | } | |
272 | ||
273 | for (i = 0; i < device_count; i++) { | |
274 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
275 | sr_err("Failed to get device descriptor: %s.", | |
276 | libusb_error_name(ret)); | |
277 | continue; | |
278 | } | |
279 | ||
96484e22 | 280 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
281 | continue; |
282 | ||
ce7d3578 SA |
283 | if ((sdi->status == SR_ST_INITIALIZING) || |
284 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 285 | /* |
ce7d3578 | 286 | * Check device by its physical USB bus/port address. |
5eea4305 | 287 | */ |
ce7d3578 SA |
288 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
289 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
290 | /* This is not the one. */ |
291 | continue; | |
292 | } | |
293 | ||
294 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
295 | if (usb->address == 0xff) | |
296 | /* | |
297 | * First time we touch this device after FW | |
298 | * upload, so we don't know the address yet. | |
299 | */ | |
300 | usb->address = libusb_get_device_address(devlist[i]); | |
301 | } else { | |
302 | sr_err("Failed to open device: %s.", | |
303 | libusb_error_name(ret)); | |
304 | break; | |
305 | } | |
306 | ||
0c30b35f SY |
307 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
308 | if (ret == LIBUSB_ERROR_BUSY) { | |
309 | sr_err("Unable to claim USB interface. Another " | |
310 | "program or driver has already claimed it."); | |
311 | break; | |
312 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
313 | sr_err("Device has been disconnected."); | |
314 | break; | |
315 | } else if (ret != 0) { | |
316 | sr_err("Unable to claim interface: %s.", | |
317 | libusb_error_name(ret)); | |
318 | break; | |
319 | } | |
320 | ||
96484e22 | 321 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
322 | sr_err("Failed to init device."); |
323 | break; | |
324 | } | |
325 | ||
5eea4305 | 326 | sdi->status = SR_ST_ACTIVE; |
ce7d3578 SA |
327 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
328 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
329 | |
330 | break; | |
331 | } | |
332 | libusb_free_device_list(devlist, 1); | |
333 | ||
0c30b35f SY |
334 | if (sdi->status != SR_ST_ACTIVE) { |
335 | if (usb->devhdl) { | |
336 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
337 | libusb_close(usb->devhdl); | |
338 | usb->devhdl = NULL; | |
339 | } | |
5eea4305 | 340 | return SR_ERR; |
0c30b35f | 341 | } |
5eea4305 MC |
342 | |
343 | return SR_OK; | |
344 | } | |
345 | ||
c463dcf0 MC |
346 | static int dev_open(struct sr_dev_inst *sdi) |
347 | { | |
5eea4305 MC |
348 | struct dev_context *devc; |
349 | int ret; | |
350 | int64_t timediff_us, timediff_ms; | |
351 | ||
352 | devc = sdi->priv; | |
5eea4305 MC |
353 | |
354 | /* | |
355 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
356 | * milliseconds for the FX2 to renumerate. | |
357 | */ | |
358 | ret = SR_ERR; | |
359 | if (devc->fw_updated > 0) { | |
360 | sr_info("Waiting for device to reset."); | |
361 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
362 | g_usleep(300 * 1000); | |
363 | timediff_ms = 0; | |
364 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
365 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
366 | break; | |
367 | g_usleep(100 * 1000); | |
368 | ||
369 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
370 | timediff_ms = timediff_us / 1000; | |
371 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
372 | } | |
373 | if (ret != SR_OK) { | |
374 | sr_err("Device failed to renumerate."); | |
375 | return SR_ERR; | |
376 | } | |
377 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
378 | } else { | |
379 | sr_info("Firmware upload was not needed."); | |
380 | ret = logic16_dev_open(sdi); | |
381 | } | |
382 | ||
383 | if (ret != SR_OK) { | |
384 | sr_err("Unable to open device."); | |
385 | return SR_ERR; | |
386 | } | |
387 | ||
5eea4305 MC |
388 | if (devc->cur_samplerate == 0) { |
389 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 390 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 391 | } |
c463dcf0 MC |
392 | |
393 | return SR_OK; | |
394 | } | |
395 | ||
396 | static int dev_close(struct sr_dev_inst *sdi) | |
397 | { | |
5eea4305 | 398 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 399 | |
5eea4305 | 400 | usb = sdi->conn; |
98fec29e | 401 | if (!usb->devhdl) |
5eea4305 | 402 | return SR_ERR; |
c463dcf0 | 403 | |
ce7d3578 SA |
404 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
405 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
406 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
407 | libusb_close(usb->devhdl); | |
408 | usb->devhdl = NULL; | |
c463dcf0 MC |
409 | sdi->status = SR_ST_INACTIVE; |
410 | ||
411 | return SR_OK; | |
412 | } | |
413 | ||
4f840ce9 | 414 | static int cleanup(const struct sr_dev_driver *di) |
c463dcf0 | 415 | { |
f6a21fa5 MC |
416 | int ret; |
417 | struct drv_context *drvc; | |
c463dcf0 | 418 | |
f6a21fa5 MC |
419 | if (!(drvc = di->priv)) |
420 | /* Can get called on an unused driver, doesn't matter. */ | |
421 | return SR_OK; | |
c463dcf0 | 422 | |
a6630742 | 423 | ret = std_dev_clear(di, NULL); |
f6a21fa5 | 424 | g_free(drvc); |
f6a21fa5 MC |
425 | |
426 | return ret; | |
c463dcf0 MC |
427 | } |
428 | ||
584560f1 | 429 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 430 | const struct sr_channel_group *cg) |
c463dcf0 | 431 | { |
7b5daad4 | 432 | struct dev_context *devc; |
b117363a | 433 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 434 | GVariant *range[2]; |
b117363a | 435 | char str[128]; |
c463dcf0 | 436 | int ret; |
96484e22 | 437 | unsigned int i; |
c463dcf0 | 438 | |
53b4680f | 439 | (void)cg; |
d3c74a6f | 440 | |
c463dcf0 MC |
441 | ret = SR_OK; |
442 | switch (key) { | |
b117363a MC |
443 | case SR_CONF_CONN: |
444 | if (!sdi || !sdi->conn) | |
445 | return SR_ERR_ARG; | |
446 | usb = sdi->conn; | |
447 | if (usb->address == 255) | |
448 | /* Device still needs to re-enumerate after firmware | |
449 | * upload, so we don't know its (future) address. */ | |
450 | return SR_ERR; | |
451 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
452 | *data = g_variant_new_string(str); | |
453 | break; | |
7b5daad4 MC |
454 | case SR_CONF_SAMPLERATE: |
455 | if (!sdi) | |
456 | return SR_ERR; | |
457 | devc = sdi->priv; | |
458 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
459 | break; | |
5a971f66 AJ |
460 | case SR_CONF_CAPTURE_RATIO: |
461 | if (!sdi) | |
462 | return SR_ERR; | |
463 | devc = sdi->priv; | |
464 | *data = g_variant_new_uint64(devc->capture_ratio); | |
465 | break; | |
db11d7d2 MC |
466 | case SR_CONF_VOLTAGE_THRESHOLD: |
467 | if (!sdi) | |
468 | return SR_ERR; | |
469 | devc = sdi->priv; | |
470 | ret = SR_ERR; | |
96484e22 UH |
471 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
472 | if (devc->selected_voltage_range != | |
473 | volt_thresholds[i].range) | |
474 | continue; | |
475 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
476 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
477 | *data = g_variant_new_tuple(range, 2); | |
478 | ret = SR_OK; | |
479 | break; | |
480 | } | |
db11d7d2 | 481 | break; |
c463dcf0 MC |
482 | default: |
483 | return SR_ERR_NA; | |
484 | } | |
485 | ||
486 | return ret; | |
487 | } | |
488 | ||
584560f1 | 489 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 490 | const struct sr_channel_group *cg) |
c463dcf0 | 491 | { |
7b5daad4 | 492 | struct dev_context *devc; |
db11d7d2 | 493 | gdouble low, high; |
c463dcf0 | 494 | int ret; |
96484e22 | 495 | unsigned int i; |
c463dcf0 | 496 | |
53b4680f | 497 | (void)cg; |
d3c74a6f | 498 | |
c463dcf0 MC |
499 | if (sdi->status != SR_ST_ACTIVE) |
500 | return SR_ERR_DEV_CLOSED; | |
501 | ||
7b5daad4 MC |
502 | devc = sdi->priv; |
503 | ||
c463dcf0 MC |
504 | ret = SR_OK; |
505 | switch (key) { | |
7b5daad4 MC |
506 | case SR_CONF_SAMPLERATE: |
507 | devc->cur_samplerate = g_variant_get_uint64(data); | |
508 | break; | |
509 | case SR_CONF_LIMIT_SAMPLES: | |
510 | devc->limit_samples = g_variant_get_uint64(data); | |
511 | break; | |
5a971f66 AJ |
512 | case SR_CONF_CAPTURE_RATIO: |
513 | devc->capture_ratio = g_variant_get_uint64(data); | |
514 | if (devc->capture_ratio > 100) { | |
515 | devc->capture_ratio = 0; | |
516 | ret = SR_ERR; | |
517 | } else | |
518 | ret = SR_OK; | |
519 | break; | |
db11d7d2 MC |
520 | case SR_CONF_VOLTAGE_THRESHOLD: |
521 | g_variant_get(data, "(dd)", &low, &high); | |
522 | ret = SR_ERR_ARG; | |
523 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
524 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
525 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
526 | devc->selected_voltage_range = | |
527 | volt_thresholds[i].range; | |
528 | ret = SR_OK; | |
529 | break; | |
530 | } | |
531 | } | |
532 | break; | |
c463dcf0 MC |
533 | default: |
534 | ret = SR_ERR_NA; | |
535 | } | |
536 | ||
537 | return ret; | |
538 | } | |
539 | ||
584560f1 | 540 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 541 | const struct sr_channel_group *cg) |
c463dcf0 | 542 | { |
db11d7d2 | 543 | GVariant *gvar, *range[2]; |
7b5daad4 | 544 | GVariantBuilder gvb; |
c463dcf0 | 545 | int ret; |
96484e22 | 546 | unsigned int i; |
c463dcf0 MC |
547 | |
548 | (void)sdi; | |
53b4680f | 549 | (void)cg; |
c463dcf0 MC |
550 | |
551 | ret = SR_OK; | |
552 | switch (key) { | |
b117363a | 553 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 554 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 555 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
b117363a MC |
556 | break; |
557 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 558 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 559 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
b117363a | 560 | break; |
7b5daad4 MC |
561 | case SR_CONF_SAMPLERATE: |
562 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
563 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
564 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
565 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
566 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
567 | break; |
568 | case SR_CONF_VOLTAGE_THRESHOLD: | |
569 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
570 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
571 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
572 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
573 | gvar = g_variant_new_tuple(range, 2); | |
574 | g_variant_builder_add_value(&gvb, gvar); | |
575 | } | |
576 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 577 | break; |
863357fb BV |
578 | case SR_CONF_TRIGGER_MATCH: |
579 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
580 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
581 | sizeof(int32_t)); | |
582 | break; | |
c463dcf0 MC |
583 | default: |
584 | return SR_ERR_NA; | |
585 | } | |
586 | ||
587 | return ret; | |
588 | } | |
589 | ||
7b5daad4 MC |
590 | static void abort_acquisition(struct dev_context *devc) |
591 | { | |
592 | int i; | |
593 | ||
863357fb | 594 | devc->sent_samples = -1; |
7b5daad4 MC |
595 | |
596 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
597 | if (devc->transfers[i]) | |
598 | libusb_cancel_transfer(devc->transfers[i]); | |
599 | } | |
600 | } | |
601 | ||
602 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
603 | { | |
604 | return devc->cur_samplerate * devc->num_channels / 8000; | |
605 | } | |
606 | ||
607 | static size_t get_buffer_size(struct dev_context *devc) | |
608 | { | |
609 | size_t s; | |
610 | ||
611 | /* | |
612 | * The buffer should be large enough to hold 10ms of data and | |
613 | * a multiple of 512. | |
614 | */ | |
615 | s = 10 * bytes_per_ms(devc); | |
616 | return (s + 511) & ~511; | |
617 | } | |
618 | ||
619 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
620 | { | |
621 | unsigned int n; | |
622 | ||
623 | /* Total buffer size should be able to hold about 500ms of data. */ | |
624 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
625 | ||
626 | if (n > NUM_SIMUL_TRANSFERS) | |
627 | return NUM_SIMUL_TRANSFERS; | |
628 | ||
629 | return n; | |
630 | } | |
631 | ||
632 | static unsigned int get_timeout(struct dev_context *devc) | |
633 | { | |
634 | size_t total_size; | |
635 | unsigned int timeout; | |
636 | ||
637 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
638 | timeout = total_size / bytes_per_ms(devc); | |
639 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
640 | } | |
641 | ||
ba7dd8bb | 642 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
643 | { |
644 | struct dev_context *devc; | |
ba7dd8bb | 645 | struct sr_channel *ch; |
7b5daad4 | 646 | GSList *l; |
ba7dd8bb | 647 | uint16_t channel_bit; |
7b5daad4 MC |
648 | |
649 | devc = sdi->priv; | |
650 | ||
651 | devc->cur_channels = 0; | |
652 | devc->num_channels = 0; | |
ba7dd8bb UH |
653 | for (l = sdi->channels; l; l = l->next) { |
654 | ch = (struct sr_channel *)l->data; | |
655 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
656 | continue; |
657 | ||
ba7dd8bb | 658 | channel_bit = 1 << (ch->index); |
7b5daad4 | 659 | |
ba7dd8bb | 660 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
661 | |
662 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
663 | /* |
664 | * Output logic data should be stored in little endian format. | |
665 | * To speed things up during conversion, do the switcharoo | |
666 | * here instead. | |
667 | */ | |
ba7dd8bb | 668 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
669 | #endif |
670 | ||
ba7dd8bb | 671 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
672 | } |
673 | ||
674 | return SR_OK; | |
675 | } | |
676 | ||
677 | static int receive_data(int fd, int revents, void *cb_data) | |
678 | { | |
679 | struct timeval tv; | |
680 | struct dev_context *devc; | |
681 | struct drv_context *drvc; | |
682 | const struct sr_dev_inst *sdi; | |
4f840ce9 | 683 | struct sr_dev_driver *di; |
7b5daad4 MC |
684 | |
685 | (void)fd; | |
686 | (void)revents; | |
687 | ||
688 | sdi = cb_data; | |
4f840ce9 | 689 | di = sdi->driver; |
7b5daad4 MC |
690 | drvc = di->priv; |
691 | devc = sdi->priv; | |
692 | ||
693 | tv.tv_sec = tv.tv_usec = 0; | |
694 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
695 | ||
863357fb | 696 | if (devc->sent_samples == -2) { |
96484e22 | 697 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
698 | abort_acquisition(devc); |
699 | } | |
700 | ||
701 | return TRUE; | |
702 | } | |
703 | ||
96484e22 | 704 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
c463dcf0 | 705 | { |
4f840ce9 | 706 | struct sr_dev_driver *di = sdi->driver; |
7b5daad4 MC |
707 | struct dev_context *devc; |
708 | struct drv_context *drvc; | |
709 | struct sr_usb_dev_inst *usb; | |
863357fb | 710 | struct sr_trigger *trigger; |
7b5daad4 | 711 | struct libusb_transfer *transfer; |
7b5daad4 MC |
712 | unsigned int i, timeout, num_transfers; |
713 | int ret; | |
714 | unsigned char *buf; | |
715 | size_t size, convsize; | |
c463dcf0 MC |
716 | |
717 | if (sdi->status != SR_ST_ACTIVE) | |
718 | return SR_ERR_DEV_CLOSED; | |
719 | ||
7b5daad4 MC |
720 | drvc = di->priv; |
721 | devc = sdi->priv; | |
722 | usb = sdi->conn; | |
723 | ||
96484e22 | 724 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
725 | if (configure_channels(sdi) != SR_OK) { |
726 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
727 | return SR_ERR; |
728 | } | |
729 | ||
730 | devc->cb_data = cb_data; | |
863357fb | 731 | devc->sent_samples = 0; |
7b5daad4 MC |
732 | devc->empty_transfer_count = 0; |
733 | devc->cur_channel = 0; | |
734 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
735 | ||
0812c40e | 736 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
5a971f66 AJ |
737 | int pre_trigger_samples = 0; |
738 | if (devc->limit_samples > 0) | |
739 | pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100; | |
740 | devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples); | |
98fec29e | 741 | if (!devc->stl) |
5a971f66 | 742 | return SR_ERR_MALLOC; |
863357fb BV |
743 | devc->trigger_fired = FALSE; |
744 | } else | |
745 | devc->trigger_fired = TRUE; | |
746 | ||
7b5daad4 MC |
747 | timeout = get_timeout(devc); |
748 | num_transfers = get_number_of_transfers(devc); | |
749 | size = get_buffer_size(devc); | |
750 | convsize = (size / devc->num_channels + 2) * 16; | |
751 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
752 | |
753 | devc->convbuffer_size = convsize; | |
754 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
755 | sr_err("Conversion buffer malloc failed."); | |
756 | return SR_ERR_MALLOC; | |
757 | } | |
758 | ||
759 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
760 | if (!devc->transfers) { | |
761 | sr_err("USB transfers malloc failed."); | |
762 | g_free(devc->convbuffer); | |
763 | return SR_ERR_MALLOC; | |
764 | } | |
765 | ||
96484e22 UH |
766 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
767 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
768 | g_free(devc->transfers); |
769 | g_free(devc->convbuffer); | |
770 | return ret; | |
771 | } | |
772 | ||
773 | devc->num_transfers = num_transfers; | |
774 | for (i = 0; i < num_transfers; i++) { | |
775 | if (!(buf = g_try_malloc(size))) { | |
776 | sr_err("USB transfer buffer malloc failed."); | |
777 | if (devc->submitted_transfers) | |
778 | abort_acquisition(devc); | |
779 | else { | |
780 | g_free(devc->transfers); | |
781 | g_free(devc->convbuffer); | |
782 | } | |
783 | return SR_ERR_MALLOC; | |
784 | } | |
785 | transfer = libusb_alloc_transfer(0); | |
786 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
787 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 788 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
789 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
790 | sr_err("Failed to submit transfer: %s.", | |
791 | libusb_error_name(ret)); | |
792 | libusb_free_transfer(transfer); | |
793 | g_free(buf); | |
794 | abort_acquisition(devc); | |
795 | return SR_ERR; | |
796 | } | |
797 | devc->transfers[i] = transfer; | |
798 | devc->submitted_transfers++; | |
799 | } | |
800 | ||
6c60facc ML |
801 | devc->ctx = drvc->sr_ctx; |
802 | ||
102f1239 | 803 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 MC |
804 | |
805 | /* Send header packet to the session bus. */ | |
806 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
807 | ||
96484e22 | 808 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
809 | abort_acquisition(devc); |
810 | return ret; | |
811 | } | |
c463dcf0 MC |
812 | |
813 | return SR_OK; | |
814 | } | |
815 | ||
816 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
817 | { | |
7b5daad4 MC |
818 | int ret; |
819 | ||
c463dcf0 MC |
820 | (void)cb_data; |
821 | ||
822 | if (sdi->status != SR_ST_ACTIVE) | |
823 | return SR_ERR_DEV_CLOSED; | |
824 | ||
96484e22 | 825 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 826 | |
7b5daad4 MC |
827 | abort_acquisition(sdi->priv); |
828 | ||
829 | return ret; | |
c463dcf0 MC |
830 | } |
831 | ||
832 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
833 | .name = "saleae-logic16", | |
834 | .longname = "Saleae Logic16", | |
835 | .api_version = 1, | |
836 | .init = init, | |
837 | .cleanup = cleanup, | |
838 | .scan = scan, | |
839 | .dev_list = dev_list, | |
a6630742 | 840 | .dev_clear = NULL, |
c463dcf0 MC |
841 | .config_get = config_get, |
842 | .config_set = config_set, | |
843 | .config_list = config_list, | |
844 | .dev_open = dev_open, | |
845 | .dev_close = dev_close, | |
846 | .dev_acquisition_start = dev_acquisition_start, | |
847 | .dev_acquisition_stop = dev_acquisition_stop, | |
848 | .priv = NULL, | |
849 | }; |