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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 | ||
aed4ad0b | 201 | sdi = sr_dev_inst_new(SR_ST_INITIALIZING, |
5eea4305 MC |
202 | "Saleae", "Logic16", NULL); |
203 | if (!sdi) | |
f6a21fa5 MC |
204 | return NULL; |
205 | sdi->driver = di; | |
ce7d3578 | 206 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 207 | |
ba7dd8bb | 208 | for (j = 0; channel_names[j]; j++) { |
3f239f08 | 209 | if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, |
ba7dd8bb | 210 | channel_names[j]))) |
f6a21fa5 | 211 | return NULL; |
ba7dd8bb | 212 | sdi->channels = g_slist_append(sdi->channels, ch); |
f6a21fa5 MC |
213 | } |
214 | ||
5eea4305 | 215 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) |
f6a21fa5 | 216 | return NULL; |
db11d7d2 | 217 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 218 | sdi->priv = devc; |
f6a21fa5 MC |
219 | drvc->instances = g_slist_append(drvc->instances, sdi); |
220 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
221 | |
222 | if (check_conf_profile(devlist[i])) { | |
223 | /* Already has the firmware, so fix the new address. */ | |
224 | sr_dbg("Found a Logic16 device."); | |
225 | sdi->status = SR_ST_INACTIVE; | |
226 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
227 | sdi->conn = sr_usb_dev_inst_new( |
228 | libusb_get_bus_number(devlist[i]), | |
229 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 MC |
230 | } else { |
231 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
232 | FX2_FIRMWARE) == SR_OK) | |
233 | /* Store when this device's FW was updated. */ | |
234 | devc->fw_updated = g_get_monotonic_time(); | |
235 | else | |
ce7d3578 | 236 | sr_err("Firmware upload failed."); |
5eea4305 | 237 | sdi->inst_type = SR_INST_USB; |
96484e22 UH |
238 | sdi->conn = sr_usb_dev_inst_new( |
239 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 240 | } |
f6a21fa5 MC |
241 | } |
242 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 243 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
244 | |
245 | return devices; | |
246 | } | |
247 | ||
248 | static GSList *dev_list(void) | |
249 | { | |
87b537ce | 250 | return ((struct drv_context *)(di->priv))->instances; |
c463dcf0 MC |
251 | } |
252 | ||
5eea4305 MC |
253 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
254 | { | |
255 | libusb_device **devlist; | |
256 | struct sr_usb_dev_inst *usb; | |
257 | struct libusb_device_descriptor des; | |
5eea4305 | 258 | struct drv_context *drvc; |
ce7d3578 SA |
259 | int ret, i, device_count; |
260 | char connection_id[64]; | |
5eea4305 MC |
261 | |
262 | drvc = di->priv; | |
5eea4305 MC |
263 | usb = sdi->conn; |
264 | ||
265 | if (sdi->status == SR_ST_ACTIVE) | |
266 | /* Device is already in use. */ | |
267 | return SR_ERR; | |
268 | ||
5eea4305 MC |
269 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
270 | if (device_count < 0) { | |
271 | sr_err("Failed to get device list: %s.", | |
272 | libusb_error_name(device_count)); | |
273 | return SR_ERR; | |
274 | } | |
275 | ||
276 | for (i = 0; i < device_count; i++) { | |
277 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
278 | sr_err("Failed to get device descriptor: %s.", | |
279 | libusb_error_name(ret)); | |
280 | continue; | |
281 | } | |
282 | ||
96484e22 | 283 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
284 | continue; |
285 | ||
ce7d3578 SA |
286 | if ((sdi->status == SR_ST_INITIALIZING) || |
287 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 288 | /* |
ce7d3578 | 289 | * Check device by its physical USB bus/port address. |
5eea4305 | 290 | */ |
ce7d3578 SA |
291 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
292 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
293 | /* This is not the one. */ |
294 | continue; | |
295 | } | |
296 | ||
297 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
298 | if (usb->address == 0xff) | |
299 | /* | |
300 | * First time we touch this device after FW | |
301 | * upload, so we don't know the address yet. | |
302 | */ | |
303 | usb->address = libusb_get_device_address(devlist[i]); | |
304 | } else { | |
305 | sr_err("Failed to open device: %s.", | |
306 | libusb_error_name(ret)); | |
307 | break; | |
308 | } | |
309 | ||
0c30b35f SY |
310 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
311 | if (ret == LIBUSB_ERROR_BUSY) { | |
312 | sr_err("Unable to claim USB interface. Another " | |
313 | "program or driver has already claimed it."); | |
314 | break; | |
315 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
316 | sr_err("Device has been disconnected."); | |
317 | break; | |
318 | } else if (ret != 0) { | |
319 | sr_err("Unable to claim interface: %s.", | |
320 | libusb_error_name(ret)); | |
321 | break; | |
322 | } | |
323 | ||
96484e22 | 324 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
325 | sr_err("Failed to init device."); |
326 | break; | |
327 | } | |
328 | ||
5eea4305 | 329 | sdi->status = SR_ST_ACTIVE; |
ce7d3578 SA |
330 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
331 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
332 | |
333 | break; | |
334 | } | |
335 | libusb_free_device_list(devlist, 1); | |
336 | ||
0c30b35f SY |
337 | if (sdi->status != SR_ST_ACTIVE) { |
338 | if (usb->devhdl) { | |
339 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
340 | libusb_close(usb->devhdl); | |
341 | usb->devhdl = NULL; | |
342 | } | |
5eea4305 | 343 | return SR_ERR; |
0c30b35f | 344 | } |
5eea4305 MC |
345 | |
346 | return SR_OK; | |
347 | } | |
348 | ||
c463dcf0 MC |
349 | static int dev_open(struct sr_dev_inst *sdi) |
350 | { | |
5eea4305 MC |
351 | struct dev_context *devc; |
352 | int ret; | |
353 | int64_t timediff_us, timediff_ms; | |
354 | ||
355 | devc = sdi->priv; | |
5eea4305 MC |
356 | |
357 | /* | |
358 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
359 | * milliseconds for the FX2 to renumerate. | |
360 | */ | |
361 | ret = SR_ERR; | |
362 | if (devc->fw_updated > 0) { | |
363 | sr_info("Waiting for device to reset."); | |
364 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
365 | g_usleep(300 * 1000); | |
366 | timediff_ms = 0; | |
367 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
368 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
369 | break; | |
370 | g_usleep(100 * 1000); | |
371 | ||
372 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
373 | timediff_ms = timediff_us / 1000; | |
374 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
375 | } | |
376 | if (ret != SR_OK) { | |
377 | sr_err("Device failed to renumerate."); | |
378 | return SR_ERR; | |
379 | } | |
380 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
381 | } else { | |
382 | sr_info("Firmware upload was not needed."); | |
383 | ret = logic16_dev_open(sdi); | |
384 | } | |
385 | ||
386 | if (ret != SR_OK) { | |
387 | sr_err("Unable to open device."); | |
388 | return SR_ERR; | |
389 | } | |
390 | ||
5eea4305 MC |
391 | if (devc->cur_samplerate == 0) { |
392 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 393 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 394 | } |
c463dcf0 MC |
395 | |
396 | return SR_OK; | |
397 | } | |
398 | ||
399 | static int dev_close(struct sr_dev_inst *sdi) | |
400 | { | |
5eea4305 | 401 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 402 | |
5eea4305 MC |
403 | usb = sdi->conn; |
404 | if (usb->devhdl == NULL) | |
405 | return SR_ERR; | |
c463dcf0 | 406 | |
ce7d3578 SA |
407 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
408 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
409 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
410 | libusb_close(usb->devhdl); | |
411 | usb->devhdl = NULL; | |
c463dcf0 MC |
412 | sdi->status = SR_ST_INACTIVE; |
413 | ||
414 | return SR_OK; | |
415 | } | |
416 | ||
417 | static int cleanup(void) | |
418 | { | |
f6a21fa5 MC |
419 | int ret; |
420 | struct drv_context *drvc; | |
c463dcf0 | 421 | |
f6a21fa5 MC |
422 | if (!(drvc = di->priv)) |
423 | /* Can get called on an unused driver, doesn't matter. */ | |
424 | return SR_OK; | |
c463dcf0 | 425 | |
a6630742 | 426 | ret = std_dev_clear(di, NULL); |
f6a21fa5 MC |
427 | g_free(drvc); |
428 | di->priv = NULL; | |
429 | ||
430 | return ret; | |
c463dcf0 MC |
431 | } |
432 | ||
584560f1 | 433 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 434 | const struct sr_channel_group *cg) |
c463dcf0 | 435 | { |
7b5daad4 | 436 | struct dev_context *devc; |
b117363a | 437 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 438 | GVariant *range[2]; |
b117363a | 439 | char str[128]; |
c463dcf0 | 440 | int ret; |
96484e22 | 441 | unsigned int i; |
c463dcf0 | 442 | |
53b4680f | 443 | (void)cg; |
d3c74a6f | 444 | |
c463dcf0 MC |
445 | ret = SR_OK; |
446 | switch (key) { | |
b117363a MC |
447 | case SR_CONF_CONN: |
448 | if (!sdi || !sdi->conn) | |
449 | return SR_ERR_ARG; | |
450 | usb = sdi->conn; | |
451 | if (usb->address == 255) | |
452 | /* Device still needs to re-enumerate after firmware | |
453 | * upload, so we don't know its (future) address. */ | |
454 | return SR_ERR; | |
455 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
456 | *data = g_variant_new_string(str); | |
457 | break; | |
7b5daad4 MC |
458 | case SR_CONF_SAMPLERATE: |
459 | if (!sdi) | |
460 | return SR_ERR; | |
461 | devc = sdi->priv; | |
462 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
463 | break; | |
db11d7d2 MC |
464 | case SR_CONF_VOLTAGE_THRESHOLD: |
465 | if (!sdi) | |
466 | return SR_ERR; | |
467 | devc = sdi->priv; | |
468 | ret = SR_ERR; | |
96484e22 UH |
469 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
470 | if (devc->selected_voltage_range != | |
471 | volt_thresholds[i].range) | |
472 | continue; | |
473 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
474 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
475 | *data = g_variant_new_tuple(range, 2); | |
476 | ret = SR_OK; | |
477 | break; | |
478 | } | |
db11d7d2 | 479 | break; |
c463dcf0 MC |
480 | default: |
481 | return SR_ERR_NA; | |
482 | } | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
584560f1 | 487 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 488 | const struct sr_channel_group *cg) |
c463dcf0 | 489 | { |
7b5daad4 | 490 | struct dev_context *devc; |
db11d7d2 | 491 | gdouble low, high; |
c463dcf0 | 492 | int ret; |
96484e22 | 493 | unsigned int i; |
c463dcf0 | 494 | |
53b4680f | 495 | (void)cg; |
d3c74a6f | 496 | |
c463dcf0 MC |
497 | if (sdi->status != SR_ST_ACTIVE) |
498 | return SR_ERR_DEV_CLOSED; | |
499 | ||
7b5daad4 MC |
500 | devc = sdi->priv; |
501 | ||
c463dcf0 MC |
502 | ret = SR_OK; |
503 | switch (key) { | |
7b5daad4 MC |
504 | case SR_CONF_SAMPLERATE: |
505 | devc->cur_samplerate = g_variant_get_uint64(data); | |
506 | break; | |
507 | case SR_CONF_LIMIT_SAMPLES: | |
508 | devc->limit_samples = g_variant_get_uint64(data); | |
509 | break; | |
db11d7d2 MC |
510 | case SR_CONF_VOLTAGE_THRESHOLD: |
511 | g_variant_get(data, "(dd)", &low, &high); | |
512 | ret = SR_ERR_ARG; | |
513 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
514 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
515 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
516 | devc->selected_voltage_range = | |
517 | volt_thresholds[i].range; | |
518 | ret = SR_OK; | |
519 | break; | |
520 | } | |
521 | } | |
522 | break; | |
c463dcf0 MC |
523 | default: |
524 | ret = SR_ERR_NA; | |
525 | } | |
526 | ||
527 | return ret; | |
528 | } | |
529 | ||
584560f1 | 530 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 531 | const struct sr_channel_group *cg) |
c463dcf0 | 532 | { |
db11d7d2 | 533 | GVariant *gvar, *range[2]; |
7b5daad4 | 534 | GVariantBuilder gvb; |
c463dcf0 | 535 | int ret; |
96484e22 | 536 | unsigned int i; |
c463dcf0 MC |
537 | |
538 | (void)sdi; | |
53b4680f | 539 | (void)cg; |
c463dcf0 MC |
540 | |
541 | ret = SR_OK; | |
542 | switch (key) { | |
b117363a | 543 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 544 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 545 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
b117363a MC |
546 | break; |
547 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 548 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 549 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
b117363a | 550 | break; |
7b5daad4 MC |
551 | case SR_CONF_SAMPLERATE: |
552 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
553 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
554 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
555 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
556 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
557 | break; |
558 | case SR_CONF_VOLTAGE_THRESHOLD: | |
559 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
560 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
561 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
562 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
563 | gvar = g_variant_new_tuple(range, 2); | |
564 | g_variant_builder_add_value(&gvb, gvar); | |
565 | } | |
566 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 567 | break; |
863357fb BV |
568 | case SR_CONF_TRIGGER_MATCH: |
569 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
570 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
571 | sizeof(int32_t)); | |
572 | break; | |
c463dcf0 MC |
573 | default: |
574 | return SR_ERR_NA; | |
575 | } | |
576 | ||
577 | return ret; | |
578 | } | |
579 | ||
7b5daad4 MC |
580 | static void abort_acquisition(struct dev_context *devc) |
581 | { | |
582 | int i; | |
583 | ||
863357fb | 584 | devc->sent_samples = -1; |
7b5daad4 MC |
585 | |
586 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
587 | if (devc->transfers[i]) | |
588 | libusb_cancel_transfer(devc->transfers[i]); | |
589 | } | |
590 | } | |
591 | ||
592 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
593 | { | |
594 | return devc->cur_samplerate * devc->num_channels / 8000; | |
595 | } | |
596 | ||
597 | static size_t get_buffer_size(struct dev_context *devc) | |
598 | { | |
599 | size_t s; | |
600 | ||
601 | /* | |
602 | * The buffer should be large enough to hold 10ms of data and | |
603 | * a multiple of 512. | |
604 | */ | |
605 | s = 10 * bytes_per_ms(devc); | |
606 | return (s + 511) & ~511; | |
607 | } | |
608 | ||
609 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
610 | { | |
611 | unsigned int n; | |
612 | ||
613 | /* Total buffer size should be able to hold about 500ms of data. */ | |
614 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
615 | ||
616 | if (n > NUM_SIMUL_TRANSFERS) | |
617 | return NUM_SIMUL_TRANSFERS; | |
618 | ||
619 | return n; | |
620 | } | |
621 | ||
622 | static unsigned int get_timeout(struct dev_context *devc) | |
623 | { | |
624 | size_t total_size; | |
625 | unsigned int timeout; | |
626 | ||
627 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
628 | timeout = total_size / bytes_per_ms(devc); | |
629 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
630 | } | |
631 | ||
ba7dd8bb | 632 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
633 | { |
634 | struct dev_context *devc; | |
ba7dd8bb | 635 | struct sr_channel *ch; |
7b5daad4 | 636 | GSList *l; |
ba7dd8bb | 637 | uint16_t channel_bit; |
7b5daad4 MC |
638 | |
639 | devc = sdi->priv; | |
640 | ||
641 | devc->cur_channels = 0; | |
642 | devc->num_channels = 0; | |
ba7dd8bb UH |
643 | for (l = sdi->channels; l; l = l->next) { |
644 | ch = (struct sr_channel *)l->data; | |
645 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
646 | continue; |
647 | ||
ba7dd8bb | 648 | channel_bit = 1 << (ch->index); |
7b5daad4 | 649 | |
ba7dd8bb | 650 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
651 | |
652 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
653 | /* |
654 | * Output logic data should be stored in little endian format. | |
655 | * To speed things up during conversion, do the switcharoo | |
656 | * here instead. | |
657 | */ | |
ba7dd8bb | 658 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
659 | #endif |
660 | ||
ba7dd8bb | 661 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
662 | } |
663 | ||
664 | return SR_OK; | |
665 | } | |
666 | ||
667 | static int receive_data(int fd, int revents, void *cb_data) | |
668 | { | |
669 | struct timeval tv; | |
670 | struct dev_context *devc; | |
671 | struct drv_context *drvc; | |
672 | const struct sr_dev_inst *sdi; | |
673 | ||
674 | (void)fd; | |
675 | (void)revents; | |
676 | ||
677 | sdi = cb_data; | |
678 | drvc = di->priv; | |
679 | devc = sdi->priv; | |
680 | ||
681 | tv.tv_sec = tv.tv_usec = 0; | |
682 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
683 | ||
863357fb | 684 | if (devc->sent_samples == -2) { |
96484e22 | 685 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
686 | abort_acquisition(devc); |
687 | } | |
688 | ||
689 | return TRUE; | |
690 | } | |
691 | ||
96484e22 | 692 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
c463dcf0 | 693 | { |
7b5daad4 MC |
694 | struct dev_context *devc; |
695 | struct drv_context *drvc; | |
696 | struct sr_usb_dev_inst *usb; | |
863357fb | 697 | struct sr_trigger *trigger; |
7b5daad4 | 698 | struct libusb_transfer *transfer; |
7b5daad4 MC |
699 | unsigned int i, timeout, num_transfers; |
700 | int ret; | |
701 | unsigned char *buf; | |
702 | size_t size, convsize; | |
c463dcf0 MC |
703 | |
704 | if (sdi->status != SR_ST_ACTIVE) | |
705 | return SR_ERR_DEV_CLOSED; | |
706 | ||
7b5daad4 MC |
707 | drvc = di->priv; |
708 | devc = sdi->priv; | |
709 | usb = sdi->conn; | |
710 | ||
96484e22 | 711 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
712 | if (configure_channels(sdi) != SR_OK) { |
713 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
714 | return SR_ERR; |
715 | } | |
716 | ||
717 | devc->cb_data = cb_data; | |
863357fb | 718 | devc->sent_samples = 0; |
7b5daad4 MC |
719 | devc->empty_transfer_count = 0; |
720 | devc->cur_channel = 0; | |
721 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
722 | ||
0812c40e | 723 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
863357fb BV |
724 | devc->stl = soft_trigger_logic_new(sdi, trigger); |
725 | devc->trigger_fired = FALSE; | |
726 | } else | |
727 | devc->trigger_fired = TRUE; | |
728 | ||
7b5daad4 MC |
729 | timeout = get_timeout(devc); |
730 | num_transfers = get_number_of_transfers(devc); | |
731 | size = get_buffer_size(devc); | |
732 | convsize = (size / devc->num_channels + 2) * 16; | |
733 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
734 | |
735 | devc->convbuffer_size = convsize; | |
736 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
737 | sr_err("Conversion buffer malloc failed."); | |
738 | return SR_ERR_MALLOC; | |
739 | } | |
740 | ||
741 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
742 | if (!devc->transfers) { | |
743 | sr_err("USB transfers malloc failed."); | |
744 | g_free(devc->convbuffer); | |
745 | return SR_ERR_MALLOC; | |
746 | } | |
747 | ||
96484e22 UH |
748 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
749 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
750 | g_free(devc->transfers); |
751 | g_free(devc->convbuffer); | |
752 | return ret; | |
753 | } | |
754 | ||
755 | devc->num_transfers = num_transfers; | |
756 | for (i = 0; i < num_transfers; i++) { | |
757 | if (!(buf = g_try_malloc(size))) { | |
758 | sr_err("USB transfer buffer malloc failed."); | |
759 | if (devc->submitted_transfers) | |
760 | abort_acquisition(devc); | |
761 | else { | |
762 | g_free(devc->transfers); | |
763 | g_free(devc->convbuffer); | |
764 | } | |
765 | return SR_ERR_MALLOC; | |
766 | } | |
767 | transfer = libusb_alloc_transfer(0); | |
768 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
769 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 770 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
771 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
772 | sr_err("Failed to submit transfer: %s.", | |
773 | libusb_error_name(ret)); | |
774 | libusb_free_transfer(transfer); | |
775 | g_free(buf); | |
776 | abort_acquisition(devc); | |
777 | return SR_ERR; | |
778 | } | |
779 | devc->transfers[i] = transfer; | |
780 | devc->submitted_transfers++; | |
781 | } | |
782 | ||
6c60facc ML |
783 | devc->ctx = drvc->sr_ctx; |
784 | ||
102f1239 | 785 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 MC |
786 | |
787 | /* Send header packet to the session bus. */ | |
788 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
789 | ||
96484e22 | 790 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
791 | abort_acquisition(devc); |
792 | return ret; | |
793 | } | |
c463dcf0 MC |
794 | |
795 | return SR_OK; | |
796 | } | |
797 | ||
798 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
799 | { | |
7b5daad4 MC |
800 | int ret; |
801 | ||
c463dcf0 MC |
802 | (void)cb_data; |
803 | ||
804 | if (sdi->status != SR_ST_ACTIVE) | |
805 | return SR_ERR_DEV_CLOSED; | |
806 | ||
96484e22 | 807 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 808 | |
7b5daad4 MC |
809 | abort_acquisition(sdi->priv); |
810 | ||
811 | return ret; | |
c463dcf0 MC |
812 | } |
813 | ||
814 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
815 | .name = "saleae-logic16", | |
816 | .longname = "Saleae Logic16", | |
817 | .api_version = 1, | |
818 | .init = init, | |
819 | .cleanup = cleanup, | |
820 | .scan = scan, | |
821 | .dev_list = dev_list, | |
a6630742 | 822 | .dev_clear = NULL, |
c463dcf0 MC |
823 | .config_get = config_get, |
824 | .config_set = config_set, | |
825 | .config_list = config_list, | |
826 | .dev_open = dev_open, | |
827 | .dev_close = dev_close, | |
828 | .dev_acquisition_start = dev_acquisition_start, | |
829 | .dev_acquisition_stop = dev_acquisition_stop, | |
830 | .priv = NULL, | |
831 | }; |