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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 | |
a0e0bb41 | 42 | static const uint32_t scanopts[] = { |
b117363a MC |
43 | SR_CONF_CONN, |
44 | }; | |
45 | ||
05199c0a | 46 | static const uint32_t drvopts[] = { |
b117363a | 47 | SR_CONF_LOGIC_ANALYZER, |
05199c0a UH |
48 | }; |
49 | ||
50 | static const uint32_t devopts[] = { | |
b117363a | 51 | SR_CONF_CONTINUOUS, |
5827f61b BV |
52 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
53 | SR_CONF_CONN | SR_CONF_GET, | |
54 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
55 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
56 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
5a971f66 | 57 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, |
b117363a MC |
58 | }; |
59 | ||
76d10d13 | 60 | static const int32_t trigger_matches[] = { |
863357fb BV |
61 | SR_TRIGGER_ZERO, |
62 | SR_TRIGGER_ONE, | |
63 | SR_TRIGGER_RISING, | |
64 | SR_TRIGGER_FALLING, | |
65 | SR_TRIGGER_EDGE, | |
66 | }; | |
67 | ||
ba7dd8bb | 68 | static const char *channel_names[] = { |
f6a21fa5 MC |
69 | "0", "1", "2", "3", "4", "5", "6", "7", "8", |
70 | "9", "10", "11", "12", "13", "14", "15", | |
f6a21fa5 | 71 | }; |
c463dcf0 | 72 | |
db11d7d2 MC |
73 | static const struct { |
74 | enum voltage_range range; | |
75 | gdouble low; | |
76 | gdouble high; | |
77 | } volt_thresholds[] = { | |
78 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
79 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
80 | }; | |
81 | ||
7b5daad4 MC |
82 | static const uint64_t samplerates[] = { |
83 | SR_KHZ(500), | |
84 | SR_MHZ(1), | |
85 | SR_MHZ(2), | |
86 | SR_MHZ(4), | |
87 | SR_MHZ(5), | |
88 | SR_MHZ(8), | |
89 | SR_MHZ(10), | |
90 | SR_KHZ(12500), | |
91 | SR_MHZ(16), | |
41dab43e | 92 | SR_MHZ(20), |
7b5daad4 MC |
93 | SR_MHZ(25), |
94 | SR_MHZ(32), | |
95 | SR_MHZ(40), | |
41dab43e | 96 | SR_MHZ(50), |
7b5daad4 MC |
97 | SR_MHZ(80), |
98 | SR_MHZ(100), | |
99 | }; | |
100 | ||
5eea4305 MC |
101 | static gboolean check_conf_profile(libusb_device *dev) |
102 | { | |
103 | struct libusb_device_descriptor des; | |
104 | struct libusb_device_handle *hdl; | |
105 | gboolean ret; | |
106 | unsigned char strdesc[64]; | |
107 | ||
108 | hdl = NULL; | |
109 | ret = FALSE; | |
110 | while (!ret) { | |
111 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
2a8f2d41 | 112 | libusb_get_device_descriptor(dev, &des); |
5eea4305 MC |
113 | |
114 | if (libusb_open(dev, &hdl) != 0) | |
115 | break; | |
116 | ||
117 | if (libusb_get_string_descriptor_ascii(hdl, | |
118 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
119 | break; | |
120 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
121 | break; | |
122 | ||
123 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 124 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
125 | break; |
126 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
127 | break; | |
128 | ||
129 | /* If we made it here, it must be a configured Logic16. */ | |
130 | ret = TRUE; | |
131 | } | |
132 | if (hdl) | |
133 | libusb_close(hdl); | |
134 | ||
135 | return ret; | |
136 | } | |
137 | ||
4f840ce9 | 138 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
c463dcf0 MC |
139 | { |
140 | struct drv_context *drvc; | |
f6a21fa5 MC |
141 | struct dev_context *devc; |
142 | struct sr_dev_inst *sdi; | |
5eea4305 | 143 | struct sr_usb_dev_inst *usb; |
5eea4305 MC |
144 | struct sr_config *src; |
145 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
146 | struct libusb_device_descriptor des; |
147 | libusb_device **devlist; | |
2cca921d | 148 | unsigned int i, j; |
5eea4305 | 149 | const char *conn; |
ce7d3578 | 150 | char connection_id[64]; |
c463dcf0 | 151 | |
41812aca | 152 | drvc = di->context; |
c463dcf0 | 153 | |
5eea4305 MC |
154 | conn = NULL; |
155 | for (l = options; l; l = l->next) { | |
156 | src = l->data; | |
157 | switch (src->key) { | |
158 | case SR_CONF_CONN: | |
159 | conn = g_variant_get_string(src->data, NULL); | |
160 | break; | |
161 | } | |
162 | } | |
163 | if (conn) | |
164 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
165 | else | |
166 | conn_devices = NULL; | |
167 | ||
168 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
169 | devices = NULL; |
170 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
171 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
172 | if (conn) { |
173 | usb = NULL; | |
174 | for (l = conn_devices; l; l = l->next) { | |
175 | usb = l->data; | |
176 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
177 | && usb->address == libusb_get_device_address(devlist[i])) | |
178 | break; | |
179 | } | |
180 | if (!l) | |
181 | /* This device matched none of the ones that | |
182 | * matched the conn specification. */ | |
183 | continue; | |
184 | } | |
185 | ||
2a8f2d41 | 186 | libusb_get_device_descriptor(devlist[i], &des); |
f6a21fa5 | 187 | |
ce7d3578 SA |
188 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
189 | ||
f6a21fa5 MC |
190 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
191 | continue; | |
192 | ||
aac29cc1 | 193 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
194 | sdi->status = SR_ST_INITIALIZING; |
195 | sdi->vendor = g_strdup("Saleae"); | |
196 | sdi->model = g_strdup("Logic16"); | |
ce7d3578 | 197 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 198 | |
2cca921d | 199 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) |
5e23fcab | 200 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, |
d9251a2c | 201 | channel_names[j]); |
f6a21fa5 | 202 | |
f57d8ffe | 203 | devc = g_malloc0(sizeof(struct dev_context)); |
db11d7d2 | 204 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 205 | sdi->priv = devc; |
f6a21fa5 | 206 | devices = g_slist_append(devices, sdi); |
5eea4305 MC |
207 | |
208 | if (check_conf_profile(devlist[i])) { | |
209 | /* Already has the firmware, so fix the new address. */ | |
210 | sr_dbg("Found a Logic16 device."); | |
211 | sdi->status = SR_ST_INACTIVE; | |
212 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
213 | sdi->conn = sr_usb_dev_inst_new( |
214 | libusb_get_bus_number(devlist[i]), | |
215 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 | 216 | } else { |
8e2d6c9d DE |
217 | if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i], |
218 | USB_CONFIGURATION, FX2_FIRMWARE) == SR_OK) | |
5eea4305 MC |
219 | /* Store when this device's FW was updated. */ |
220 | devc->fw_updated = g_get_monotonic_time(); | |
221 | else | |
ce7d3578 | 222 | sr_err("Firmware upload failed."); |
5eea4305 | 223 | sdi->inst_type = SR_INST_USB; |
96484e22 UH |
224 | sdi->conn = sr_usb_dev_inst_new( |
225 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 226 | } |
f6a21fa5 MC |
227 | } |
228 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 229 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 | 230 | |
15a5bfe4 | 231 | return std_scan_complete(di, devices); |
c463dcf0 MC |
232 | } |
233 | ||
5eea4305 MC |
234 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
235 | { | |
4f840ce9 | 236 | struct sr_dev_driver *di; |
5eea4305 MC |
237 | libusb_device **devlist; |
238 | struct sr_usb_dev_inst *usb; | |
239 | struct libusb_device_descriptor des; | |
5eea4305 | 240 | struct drv_context *drvc; |
7e463623 | 241 | int ret = SR_ERR, i, device_count; |
ce7d3578 | 242 | char connection_id[64]; |
5eea4305 | 243 | |
4f840ce9 | 244 | di = sdi->driver; |
41812aca | 245 | drvc = di->context; |
5eea4305 MC |
246 | usb = sdi->conn; |
247 | ||
5eea4305 MC |
248 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
249 | if (device_count < 0) { | |
250 | sr_err("Failed to get device list: %s.", | |
251 | libusb_error_name(device_count)); | |
252 | return SR_ERR; | |
253 | } | |
254 | ||
255 | for (i = 0; i < device_count; i++) { | |
2a8f2d41 | 256 | libusb_get_device_descriptor(devlist[i], &des); |
5eea4305 | 257 | |
96484e22 | 258 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
259 | continue; |
260 | ||
ce7d3578 SA |
261 | if ((sdi->status == SR_ST_INITIALIZING) || |
262 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 263 | /* |
ce7d3578 | 264 | * Check device by its physical USB bus/port address. |
5eea4305 | 265 | */ |
ce7d3578 SA |
266 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
267 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
268 | /* This is not the one. */ |
269 | continue; | |
270 | } | |
271 | ||
272 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
273 | if (usb->address == 0xff) | |
274 | /* | |
275 | * First time we touch this device after FW | |
276 | * upload, so we don't know the address yet. | |
277 | */ | |
278 | usb->address = libusb_get_device_address(devlist[i]); | |
279 | } else { | |
280 | sr_err("Failed to open device: %s.", | |
281 | libusb_error_name(ret)); | |
7e463623 | 282 | ret = SR_ERR; |
5eea4305 MC |
283 | break; |
284 | } | |
285 | ||
0c30b35f SY |
286 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
287 | if (ret == LIBUSB_ERROR_BUSY) { | |
288 | sr_err("Unable to claim USB interface. Another " | |
289 | "program or driver has already claimed it."); | |
7e463623 | 290 | ret = SR_ERR; |
0c30b35f SY |
291 | break; |
292 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
293 | sr_err("Device has been disconnected."); | |
7e463623 | 294 | ret = SR_ERR; |
0c30b35f SY |
295 | break; |
296 | } else if (ret != 0) { | |
297 | sr_err("Unable to claim interface: %s.", | |
298 | libusb_error_name(ret)); | |
7e463623 | 299 | ret = SR_ERR; |
0c30b35f SY |
300 | break; |
301 | } | |
302 | ||
96484e22 | 303 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
304 | sr_err("Failed to init device."); |
305 | break; | |
306 | } | |
307 | ||
ce7d3578 SA |
308 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
309 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 | 310 | |
7e463623 UH |
311 | ret = SR_OK; |
312 | ||
5eea4305 MC |
313 | break; |
314 | } | |
7e463623 | 315 | |
5eea4305 MC |
316 | libusb_free_device_list(devlist, 1); |
317 | ||
7e463623 | 318 | if (ret != SR_OK) { |
0c30b35f SY |
319 | if (usb->devhdl) { |
320 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
321 | libusb_close(usb->devhdl); | |
322 | usb->devhdl = NULL; | |
323 | } | |
5eea4305 | 324 | return SR_ERR; |
0c30b35f | 325 | } |
5eea4305 MC |
326 | |
327 | return SR_OK; | |
328 | } | |
329 | ||
c463dcf0 MC |
330 | static int dev_open(struct sr_dev_inst *sdi) |
331 | { | |
5eea4305 MC |
332 | struct dev_context *devc; |
333 | int ret; | |
334 | int64_t timediff_us, timediff_ms; | |
335 | ||
336 | devc = sdi->priv; | |
5eea4305 MC |
337 | |
338 | /* | |
339 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
340 | * milliseconds for the FX2 to renumerate. | |
341 | */ | |
342 | ret = SR_ERR; | |
343 | if (devc->fw_updated > 0) { | |
344 | sr_info("Waiting for device to reset."); | |
345 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
346 | g_usleep(300 * 1000); | |
347 | timediff_ms = 0; | |
348 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
349 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
350 | break; | |
351 | g_usleep(100 * 1000); | |
352 | ||
353 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
354 | timediff_ms = timediff_us / 1000; | |
355 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
356 | } | |
357 | if (ret != SR_OK) { | |
358 | sr_err("Device failed to renumerate."); | |
359 | return SR_ERR; | |
360 | } | |
361 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
362 | } else { | |
363 | sr_info("Firmware upload was not needed."); | |
364 | ret = logic16_dev_open(sdi); | |
365 | } | |
366 | ||
367 | if (ret != SR_OK) { | |
368 | sr_err("Unable to open device."); | |
369 | return SR_ERR; | |
370 | } | |
371 | ||
5eea4305 MC |
372 | if (devc->cur_samplerate == 0) { |
373 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 374 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 375 | } |
c463dcf0 MC |
376 | |
377 | return SR_OK; | |
378 | } | |
379 | ||
380 | static int dev_close(struct sr_dev_inst *sdi) | |
381 | { | |
5eea4305 | 382 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 383 | |
5eea4305 | 384 | usb = sdi->conn; |
f1ba6b4b | 385 | |
98fec29e | 386 | if (!usb->devhdl) |
f1ba6b4b | 387 | return SR_ERR_BUG; |
c463dcf0 | 388 | |
ce7d3578 SA |
389 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
390 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
391 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
392 | libusb_close(usb->devhdl); | |
393 | usb->devhdl = NULL; | |
c463dcf0 MC |
394 | |
395 | return SR_OK; | |
396 | } | |
397 | ||
584560f1 | 398 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 399 | const struct sr_channel_group *cg) |
c463dcf0 | 400 | { |
7b5daad4 | 401 | struct dev_context *devc; |
b117363a | 402 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 403 | GVariant *range[2]; |
b117363a | 404 | char str[128]; |
c463dcf0 | 405 | int ret; |
96484e22 | 406 | unsigned int i; |
c463dcf0 | 407 | |
53b4680f | 408 | (void)cg; |
d3c74a6f | 409 | |
c463dcf0 MC |
410 | ret = SR_OK; |
411 | switch (key) { | |
b117363a MC |
412 | case SR_CONF_CONN: |
413 | if (!sdi || !sdi->conn) | |
414 | return SR_ERR_ARG; | |
415 | usb = sdi->conn; | |
416 | if (usb->address == 255) | |
417 | /* Device still needs to re-enumerate after firmware | |
418 | * upload, so we don't know its (future) address. */ | |
419 | return SR_ERR; | |
420 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
421 | *data = g_variant_new_string(str); | |
422 | break; | |
7b5daad4 MC |
423 | case SR_CONF_SAMPLERATE: |
424 | if (!sdi) | |
425 | return SR_ERR; | |
426 | devc = sdi->priv; | |
427 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
428 | break; | |
5a971f66 AJ |
429 | case SR_CONF_CAPTURE_RATIO: |
430 | if (!sdi) | |
431 | return SR_ERR; | |
432 | devc = sdi->priv; | |
433 | *data = g_variant_new_uint64(devc->capture_ratio); | |
434 | break; | |
db11d7d2 MC |
435 | case SR_CONF_VOLTAGE_THRESHOLD: |
436 | if (!sdi) | |
437 | return SR_ERR; | |
438 | devc = sdi->priv; | |
439 | ret = SR_ERR; | |
96484e22 UH |
440 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
441 | if (devc->selected_voltage_range != | |
442 | volt_thresholds[i].range) | |
443 | continue; | |
444 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
445 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
446 | *data = g_variant_new_tuple(range, 2); | |
447 | ret = SR_OK; | |
448 | break; | |
449 | } | |
db11d7d2 | 450 | break; |
c463dcf0 MC |
451 | default: |
452 | return SR_ERR_NA; | |
453 | } | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
584560f1 | 458 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 459 | const struct sr_channel_group *cg) |
c463dcf0 | 460 | { |
7b5daad4 | 461 | struct dev_context *devc; |
db11d7d2 | 462 | gdouble low, high; |
c463dcf0 | 463 | int ret; |
96484e22 | 464 | unsigned int i; |
c463dcf0 | 465 | |
53b4680f | 466 | (void)cg; |
d3c74a6f | 467 | |
7b5daad4 MC |
468 | devc = sdi->priv; |
469 | ||
c463dcf0 MC |
470 | ret = SR_OK; |
471 | switch (key) { | |
7b5daad4 MC |
472 | case SR_CONF_SAMPLERATE: |
473 | devc->cur_samplerate = g_variant_get_uint64(data); | |
474 | break; | |
475 | case SR_CONF_LIMIT_SAMPLES: | |
476 | devc->limit_samples = g_variant_get_uint64(data); | |
477 | break; | |
5a971f66 AJ |
478 | case SR_CONF_CAPTURE_RATIO: |
479 | devc->capture_ratio = g_variant_get_uint64(data); | |
a5c38703 | 480 | ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK; |
5a971f66 | 481 | break; |
db11d7d2 MC |
482 | case SR_CONF_VOLTAGE_THRESHOLD: |
483 | g_variant_get(data, "(dd)", &low, &high); | |
484 | ret = SR_ERR_ARG; | |
485 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
486 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
487 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
488 | devc->selected_voltage_range = | |
489 | volt_thresholds[i].range; | |
490 | ret = SR_OK; | |
491 | break; | |
492 | } | |
493 | } | |
494 | break; | |
c463dcf0 MC |
495 | default: |
496 | ret = SR_ERR_NA; | |
497 | } | |
498 | ||
499 | return ret; | |
500 | } | |
501 | ||
584560f1 | 502 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 503 | const struct sr_channel_group *cg) |
c463dcf0 | 504 | { |
db11d7d2 | 505 | GVariant *gvar, *range[2]; |
7b5daad4 | 506 | GVariantBuilder gvb; |
96484e22 | 507 | unsigned int i; |
c463dcf0 | 508 | |
c463dcf0 | 509 | switch (key) { |
b117363a | 510 | case SR_CONF_SCAN_OPTIONS: |
b117363a | 511 | case SR_CONF_DEVICE_OPTIONS: |
05199c0a | 512 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); |
7b5daad4 | 513 | case SR_CONF_SAMPLERATE: |
53012da6 | 514 | *data = std_gvar_samplerates(ARRAY_AND_SIZE(samplerates)); |
db11d7d2 MC |
515 | break; |
516 | case SR_CONF_VOLTAGE_THRESHOLD: | |
517 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
518 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
519 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
520 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
521 | gvar = g_variant_new_tuple(range, 2); | |
522 | g_variant_builder_add_value(&gvb, gvar); | |
523 | } | |
524 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 525 | break; |
863357fb | 526 | case SR_CONF_TRIGGER_MATCH: |
76d10d13 | 527 | *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches)); |
863357fb | 528 | break; |
c463dcf0 MC |
529 | default: |
530 | return SR_ERR_NA; | |
531 | } | |
532 | ||
a9010323 | 533 | return SR_OK; |
c463dcf0 MC |
534 | } |
535 | ||
7b5daad4 MC |
536 | static void abort_acquisition(struct dev_context *devc) |
537 | { | |
538 | int i; | |
539 | ||
863357fb | 540 | devc->sent_samples = -1; |
7b5daad4 MC |
541 | |
542 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
543 | if (devc->transfers[i]) | |
544 | libusb_cancel_transfer(devc->transfers[i]); | |
545 | } | |
546 | } | |
547 | ||
548 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
549 | { | |
550 | return devc->cur_samplerate * devc->num_channels / 8000; | |
551 | } | |
552 | ||
553 | static size_t get_buffer_size(struct dev_context *devc) | |
554 | { | |
555 | size_t s; | |
556 | ||
557 | /* | |
558 | * The buffer should be large enough to hold 10ms of data and | |
559 | * a multiple of 512. | |
560 | */ | |
561 | s = 10 * bytes_per_ms(devc); | |
562 | return (s + 511) & ~511; | |
563 | } | |
564 | ||
565 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
566 | { | |
567 | unsigned int n; | |
568 | ||
569 | /* Total buffer size should be able to hold about 500ms of data. */ | |
570 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
571 | ||
572 | if (n > NUM_SIMUL_TRANSFERS) | |
573 | return NUM_SIMUL_TRANSFERS; | |
574 | ||
575 | return n; | |
576 | } | |
577 | ||
578 | static unsigned int get_timeout(struct dev_context *devc) | |
579 | { | |
580 | size_t total_size; | |
581 | unsigned int timeout; | |
582 | ||
583 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
584 | timeout = total_size / bytes_per_ms(devc); | |
585 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
586 | } | |
587 | ||
ba7dd8bb | 588 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
589 | { |
590 | struct dev_context *devc; | |
ba7dd8bb | 591 | struct sr_channel *ch; |
7b5daad4 | 592 | GSList *l; |
ba7dd8bb | 593 | uint16_t channel_bit; |
7b5daad4 MC |
594 | |
595 | devc = sdi->priv; | |
596 | ||
597 | devc->cur_channels = 0; | |
598 | devc->num_channels = 0; | |
ba7dd8bb UH |
599 | for (l = sdi->channels; l; l = l->next) { |
600 | ch = (struct sr_channel *)l->data; | |
601 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
602 | continue; |
603 | ||
ba7dd8bb | 604 | channel_bit = 1 << (ch->index); |
7b5daad4 | 605 | |
ba7dd8bb | 606 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
607 | |
608 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
609 | /* |
610 | * Output logic data should be stored in little endian format. | |
611 | * To speed things up during conversion, do the switcharoo | |
612 | * here instead. | |
613 | */ | |
ba7dd8bb | 614 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
615 | #endif |
616 | ||
ba7dd8bb | 617 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
618 | } |
619 | ||
620 | return SR_OK; | |
621 | } | |
622 | ||
623 | static int receive_data(int fd, int revents, void *cb_data) | |
624 | { | |
625 | struct timeval tv; | |
626 | struct dev_context *devc; | |
627 | struct drv_context *drvc; | |
628 | const struct sr_dev_inst *sdi; | |
4f840ce9 | 629 | struct sr_dev_driver *di; |
7b5daad4 MC |
630 | |
631 | (void)fd; | |
632 | (void)revents; | |
633 | ||
634 | sdi = cb_data; | |
4f840ce9 | 635 | di = sdi->driver; |
41812aca | 636 | drvc = di->context; |
7b5daad4 MC |
637 | devc = sdi->priv; |
638 | ||
639 | tv.tv_sec = tv.tv_usec = 0; | |
640 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
641 | ||
863357fb | 642 | if (devc->sent_samples == -2) { |
96484e22 | 643 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
644 | abort_acquisition(devc); |
645 | } | |
646 | ||
647 | return TRUE; | |
648 | } | |
649 | ||
695dc859 | 650 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
c463dcf0 | 651 | { |
4f840ce9 | 652 | struct sr_dev_driver *di = sdi->driver; |
7b5daad4 MC |
653 | struct dev_context *devc; |
654 | struct drv_context *drvc; | |
655 | struct sr_usb_dev_inst *usb; | |
863357fb | 656 | struct sr_trigger *trigger; |
7b5daad4 | 657 | struct libusb_transfer *transfer; |
7b5daad4 MC |
658 | unsigned int i, timeout, num_transfers; |
659 | int ret; | |
660 | unsigned char *buf; | |
661 | size_t size, convsize; | |
c463dcf0 | 662 | |
41812aca | 663 | drvc = di->context; |
7b5daad4 MC |
664 | devc = sdi->priv; |
665 | usb = sdi->conn; | |
666 | ||
96484e22 | 667 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
668 | if (configure_channels(sdi) != SR_OK) { |
669 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
670 | return SR_ERR; |
671 | } | |
672 | ||
863357fb | 673 | devc->sent_samples = 0; |
7b5daad4 MC |
674 | devc->empty_transfer_count = 0; |
675 | devc->cur_channel = 0; | |
676 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
677 | ||
0812c40e | 678 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
5a971f66 AJ |
679 | int pre_trigger_samples = 0; |
680 | if (devc->limit_samples > 0) | |
681 | pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100; | |
682 | devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples); | |
98fec29e | 683 | if (!devc->stl) |
5a971f66 | 684 | return SR_ERR_MALLOC; |
863357fb BV |
685 | devc->trigger_fired = FALSE; |
686 | } else | |
687 | devc->trigger_fired = TRUE; | |
688 | ||
7b5daad4 MC |
689 | timeout = get_timeout(devc); |
690 | num_transfers = get_number_of_transfers(devc); | |
691 | size = get_buffer_size(devc); | |
692 | convsize = (size / devc->num_channels + 2) * 16; | |
693 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
694 | |
695 | devc->convbuffer_size = convsize; | |
696 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
697 | sr_err("Conversion buffer malloc failed."); | |
698 | return SR_ERR_MALLOC; | |
699 | } | |
700 | ||
701 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
702 | if (!devc->transfers) { | |
703 | sr_err("USB transfers malloc failed."); | |
704 | g_free(devc->convbuffer); | |
705 | return SR_ERR_MALLOC; | |
706 | } | |
707 | ||
96484e22 UH |
708 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
709 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
710 | g_free(devc->transfers); |
711 | g_free(devc->convbuffer); | |
712 | return ret; | |
713 | } | |
714 | ||
715 | devc->num_transfers = num_transfers; | |
716 | for (i = 0; i < num_transfers; i++) { | |
717 | if (!(buf = g_try_malloc(size))) { | |
718 | sr_err("USB transfer buffer malloc failed."); | |
719 | if (devc->submitted_transfers) | |
720 | abort_acquisition(devc); | |
721 | else { | |
722 | g_free(devc->transfers); | |
723 | g_free(devc->convbuffer); | |
724 | } | |
725 | return SR_ERR_MALLOC; | |
726 | } | |
727 | transfer = libusb_alloc_transfer(0); | |
728 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
729 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 730 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
731 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
732 | sr_err("Failed to submit transfer: %s.", | |
733 | libusb_error_name(ret)); | |
734 | libusb_free_transfer(transfer); | |
735 | g_free(buf); | |
736 | abort_acquisition(devc); | |
737 | return SR_ERR; | |
738 | } | |
739 | devc->transfers[i] = transfer; | |
740 | devc->submitted_transfers++; | |
741 | } | |
742 | ||
6c60facc ML |
743 | devc->ctx = drvc->sr_ctx; |
744 | ||
102f1239 | 745 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 | 746 | |
bee2b016 | 747 | std_session_send_df_header(sdi); |
7b5daad4 | 748 | |
96484e22 | 749 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
750 | abort_acquisition(devc); |
751 | return ret; | |
752 | } | |
c463dcf0 MC |
753 | |
754 | return SR_OK; | |
755 | } | |
756 | ||
695dc859 | 757 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
c463dcf0 | 758 | { |
7b5daad4 MC |
759 | int ret; |
760 | ||
96484e22 | 761 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 762 | |
7b5daad4 MC |
763 | abort_acquisition(sdi->priv); |
764 | ||
765 | return ret; | |
c463dcf0 MC |
766 | } |
767 | ||
dd5c48a6 | 768 | static struct sr_dev_driver saleae_logic16_driver_info = { |
c463dcf0 MC |
769 | .name = "saleae-logic16", |
770 | .longname = "Saleae Logic16", | |
771 | .api_version = 1, | |
c2fdcc25 | 772 | .init = std_init, |
700d6b64 | 773 | .cleanup = std_cleanup, |
c463dcf0 | 774 | .scan = scan, |
c01bf34c | 775 | .dev_list = std_dev_list, |
f778bf02 | 776 | .dev_clear = std_dev_clear, |
c463dcf0 MC |
777 | .config_get = config_get, |
778 | .config_set = config_set, | |
779 | .config_list = config_list, | |
780 | .dev_open = dev_open, | |
781 | .dev_close = dev_close, | |
782 | .dev_acquisition_start = dev_acquisition_start, | |
783 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 784 | .context = NULL, |
c463dcf0 | 785 | }; |
dd5c48a6 | 786 | SR_REGISTER_DEV_DRIVER(saleae_logic16_driver_info); |