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c463dcf0 MC |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se> | |
fec7aa6a MC |
5 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> |
6 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
c463dcf0 MC |
7 | * |
8 | * This program is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, either version 3 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
6ec6c43b | 22 | #include <config.h> |
f6a21fa5 MC |
23 | #include <glib.h> |
24 | #include <libusb.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
db11d7d2 | 27 | #include <math.h> |
c1aae900 | 28 | #include <libsigrok/libsigrok.h> |
f6a21fa5 | 29 | #include "libsigrok-internal.h" |
c463dcf0 MC |
30 | #include "protocol.h" |
31 | ||
96484e22 UH |
32 | #define LOGIC16_VID 0x21a9 |
33 | #define LOGIC16_PID 0x1001 | |
f6a21fa5 | 34 | |
5eea4305 MC |
35 | #define USB_INTERFACE 0 |
36 | #define USB_CONFIGURATION 1 | |
8e2d6c9d | 37 | #define FX2_FIRMWARE "saleae-logic16-fx2.fw" |
5eea4305 MC |
38 | |
39 | #define MAX_RENUM_DELAY_MS 3000 | |
7b5daad4 | 40 | #define NUM_SIMUL_TRANSFERS 32 |
5eea4305 | 41 | |
c463dcf0 | 42 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info; |
c463dcf0 | 43 | |
a0e0bb41 | 44 | static const uint32_t scanopts[] = { |
b117363a MC |
45 | SR_CONF_CONN, |
46 | }; | |
47 | ||
f254bc4b | 48 | static const uint32_t devopts[] = { |
b117363a | 49 | SR_CONF_LOGIC_ANALYZER, |
b117363a | 50 | SR_CONF_CONTINUOUS, |
5827f61b BV |
51 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
52 | SR_CONF_CONN | SR_CONF_GET, | |
53 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
54 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
55 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
5a971f66 | 56 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, |
b117363a MC |
57 | }; |
58 | ||
863357fb BV |
59 | static const int32_t soft_trigger_matches[] = { |
60 | SR_TRIGGER_ZERO, | |
61 | SR_TRIGGER_ONE, | |
62 | SR_TRIGGER_RISING, | |
63 | SR_TRIGGER_FALLING, | |
64 | SR_TRIGGER_EDGE, | |
65 | }; | |
66 | ||
ba7dd8bb | 67 | static const char *channel_names[] = { |
f6a21fa5 MC |
68 | "0", "1", "2", "3", "4", "5", "6", "7", "8", |
69 | "9", "10", "11", "12", "13", "14", "15", | |
f6a21fa5 | 70 | }; |
c463dcf0 | 71 | |
db11d7d2 MC |
72 | static const struct { |
73 | enum voltage_range range; | |
74 | gdouble low; | |
75 | gdouble high; | |
76 | } volt_thresholds[] = { | |
77 | { VOLTAGE_RANGE_18_33_V, 0.7, 1.4 }, | |
78 | { VOLTAGE_RANGE_5_V, 1.4, 3.6 }, | |
79 | }; | |
80 | ||
7b5daad4 MC |
81 | static const uint64_t samplerates[] = { |
82 | SR_KHZ(500), | |
83 | SR_MHZ(1), | |
84 | SR_MHZ(2), | |
85 | SR_MHZ(4), | |
86 | SR_MHZ(5), | |
87 | SR_MHZ(8), | |
88 | SR_MHZ(10), | |
89 | SR_KHZ(12500), | |
90 | SR_MHZ(16), | |
91 | SR_MHZ(25), | |
92 | SR_MHZ(32), | |
93 | SR_MHZ(40), | |
94 | SR_MHZ(80), | |
95 | SR_MHZ(100), | |
96 | }; | |
97 | ||
4f840ce9 | 98 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
c463dcf0 MC |
99 | { |
100 | return std_init(sr_ctx, di, LOG_PREFIX); | |
101 | } | |
102 | ||
5eea4305 MC |
103 | static gboolean check_conf_profile(libusb_device *dev) |
104 | { | |
105 | struct libusb_device_descriptor des; | |
106 | struct libusb_device_handle *hdl; | |
107 | gboolean ret; | |
108 | unsigned char strdesc[64]; | |
109 | ||
110 | hdl = NULL; | |
111 | ret = FALSE; | |
112 | while (!ret) { | |
113 | /* Assume the FW has not been loaded, unless proven wrong. */ | |
2a8f2d41 | 114 | libusb_get_device_descriptor(dev, &des); |
5eea4305 MC |
115 | |
116 | if (libusb_open(dev, &hdl) != 0) | |
117 | break; | |
118 | ||
119 | if (libusb_get_string_descriptor_ascii(hdl, | |
120 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
121 | break; | |
122 | if (strcmp((const char *)strdesc, "Saleae LLC")) | |
123 | break; | |
124 | ||
125 | if (libusb_get_string_descriptor_ascii(hdl, | |
96484e22 | 126 | des.iProduct, strdesc, sizeof(strdesc)) < 0) |
5eea4305 MC |
127 | break; |
128 | if (strcmp((const char *)strdesc, "Logic S/16")) | |
129 | break; | |
130 | ||
131 | /* If we made it here, it must be a configured Logic16. */ | |
132 | ret = TRUE; | |
133 | } | |
134 | if (hdl) | |
135 | libusb_close(hdl); | |
136 | ||
137 | return ret; | |
138 | } | |
139 | ||
4f840ce9 | 140 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
c463dcf0 MC |
141 | { |
142 | struct drv_context *drvc; | |
f6a21fa5 MC |
143 | struct dev_context *devc; |
144 | struct sr_dev_inst *sdi; | |
5eea4305 | 145 | struct sr_usb_dev_inst *usb; |
5eea4305 MC |
146 | struct sr_config *src; |
147 | GSList *l, *devices, *conn_devices; | |
f6a21fa5 MC |
148 | struct libusb_device_descriptor des; |
149 | libusb_device **devlist; | |
2cca921d | 150 | unsigned int i, j; |
5eea4305 | 151 | const char *conn; |
ce7d3578 | 152 | char connection_id[64]; |
c463dcf0 | 153 | |
41812aca | 154 | drvc = di->context; |
c463dcf0 | 155 | |
5eea4305 MC |
156 | conn = NULL; |
157 | for (l = options; l; l = l->next) { | |
158 | src = l->data; | |
159 | switch (src->key) { | |
160 | case SR_CONF_CONN: | |
161 | conn = g_variant_get_string(src->data, NULL); | |
162 | break; | |
163 | } | |
164 | } | |
165 | if (conn) | |
166 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
167 | else | |
168 | conn_devices = NULL; | |
169 | ||
170 | /* Find all Logic16 devices and upload firmware to them. */ | |
f6a21fa5 MC |
171 | devices = NULL; |
172 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
173 | for (i = 0; devlist[i]; i++) { | |
5eea4305 MC |
174 | if (conn) { |
175 | usb = NULL; | |
176 | for (l = conn_devices; l; l = l->next) { | |
177 | usb = l->data; | |
178 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
179 | && usb->address == libusb_get_device_address(devlist[i])) | |
180 | break; | |
181 | } | |
182 | if (!l) | |
183 | /* This device matched none of the ones that | |
184 | * matched the conn specification. */ | |
185 | continue; | |
186 | } | |
187 | ||
2a8f2d41 | 188 | libusb_get_device_descriptor(devlist[i], &des); |
f6a21fa5 | 189 | |
ce7d3578 SA |
190 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
191 | ||
f6a21fa5 MC |
192 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
193 | continue; | |
194 | ||
aac29cc1 | 195 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be UH |
196 | sdi->status = SR_ST_INITIALIZING; |
197 | sdi->vendor = g_strdup("Saleae"); | |
198 | sdi->model = g_strdup("Logic16"); | |
f6a21fa5 | 199 | sdi->driver = di; |
ce7d3578 | 200 | sdi->connection_id = g_strdup(connection_id); |
f6a21fa5 | 201 | |
2cca921d | 202 | for (j = 0; j < ARRAY_SIZE(channel_names); j++) |
5e23fcab | 203 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, |
c368e6f3 | 204 | channel_names[j]); |
f6a21fa5 | 205 | |
f57d8ffe | 206 | devc = g_malloc0(sizeof(struct dev_context)); |
db11d7d2 | 207 | devc->selected_voltage_range = VOLTAGE_RANGE_18_33_V; |
5eea4305 | 208 | sdi->priv = devc; |
f6a21fa5 MC |
209 | drvc->instances = g_slist_append(drvc->instances, sdi); |
210 | devices = g_slist_append(devices, sdi); | |
5eea4305 MC |
211 | |
212 | if (check_conf_profile(devlist[i])) { | |
213 | /* Already has the firmware, so fix the new address. */ | |
214 | sr_dbg("Found a Logic16 device."); | |
215 | sdi->status = SR_ST_INACTIVE; | |
216 | sdi->inst_type = SR_INST_USB; | |
96484e22 UH |
217 | sdi->conn = sr_usb_dev_inst_new( |
218 | libusb_get_bus_number(devlist[i]), | |
219 | libusb_get_device_address(devlist[i]), NULL); | |
5eea4305 | 220 | } else { |
8e2d6c9d DE |
221 | if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i], |
222 | USB_CONFIGURATION, FX2_FIRMWARE) == SR_OK) | |
5eea4305 MC |
223 | /* Store when this device's FW was updated. */ |
224 | devc->fw_updated = g_get_monotonic_time(); | |
225 | else | |
ce7d3578 | 226 | sr_err("Firmware upload failed."); |
5eea4305 | 227 | sdi->inst_type = SR_INST_USB; |
96484e22 UH |
228 | sdi->conn = sr_usb_dev_inst_new( |
229 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
5eea4305 | 230 | } |
f6a21fa5 MC |
231 | } |
232 | libusb_free_device_list(devlist, 1); | |
5eea4305 | 233 | g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); |
c463dcf0 MC |
234 | |
235 | return devices; | |
236 | } | |
237 | ||
4f840ce9 | 238 | static GSList *dev_list(const struct sr_dev_driver *di) |
c463dcf0 | 239 | { |
41812aca | 240 | return ((struct drv_context *)(di->context))->instances; |
c463dcf0 MC |
241 | } |
242 | ||
5eea4305 MC |
243 | static int logic16_dev_open(struct sr_dev_inst *sdi) |
244 | { | |
4f840ce9 | 245 | struct sr_dev_driver *di; |
5eea4305 MC |
246 | libusb_device **devlist; |
247 | struct sr_usb_dev_inst *usb; | |
248 | struct libusb_device_descriptor des; | |
5eea4305 | 249 | struct drv_context *drvc; |
ce7d3578 SA |
250 | int ret, i, device_count; |
251 | char connection_id[64]; | |
5eea4305 | 252 | |
4f840ce9 | 253 | di = sdi->driver; |
41812aca | 254 | drvc = di->context; |
5eea4305 MC |
255 | usb = sdi->conn; |
256 | ||
257 | if (sdi->status == SR_ST_ACTIVE) | |
258 | /* Device is already in use. */ | |
259 | return SR_ERR; | |
260 | ||
5eea4305 MC |
261 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
262 | if (device_count < 0) { | |
263 | sr_err("Failed to get device list: %s.", | |
264 | libusb_error_name(device_count)); | |
265 | return SR_ERR; | |
266 | } | |
267 | ||
268 | for (i = 0; i < device_count; i++) { | |
2a8f2d41 | 269 | libusb_get_device_descriptor(devlist[i], &des); |
5eea4305 | 270 | |
96484e22 | 271 | if (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID) |
5eea4305 MC |
272 | continue; |
273 | ||
ce7d3578 SA |
274 | if ((sdi->status == SR_ST_INITIALIZING) || |
275 | (sdi->status == SR_ST_INACTIVE)) { | |
5eea4305 | 276 | /* |
ce7d3578 | 277 | * Check device by its physical USB bus/port address. |
5eea4305 | 278 | */ |
ce7d3578 SA |
279 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
280 | if (strcmp(sdi->connection_id, connection_id)) | |
5eea4305 MC |
281 | /* This is not the one. */ |
282 | continue; | |
283 | } | |
284 | ||
285 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { | |
286 | if (usb->address == 0xff) | |
287 | /* | |
288 | * First time we touch this device after FW | |
289 | * upload, so we don't know the address yet. | |
290 | */ | |
291 | usb->address = libusb_get_device_address(devlist[i]); | |
292 | } else { | |
293 | sr_err("Failed to open device: %s.", | |
294 | libusb_error_name(ret)); | |
295 | break; | |
296 | } | |
297 | ||
0c30b35f SY |
298 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
299 | if (ret == LIBUSB_ERROR_BUSY) { | |
300 | sr_err("Unable to claim USB interface. Another " | |
301 | "program or driver has already claimed it."); | |
302 | break; | |
303 | } else if (ret == LIBUSB_ERROR_NO_DEVICE) { | |
304 | sr_err("Device has been disconnected."); | |
305 | break; | |
306 | } else if (ret != 0) { | |
307 | sr_err("Unable to claim interface: %s.", | |
308 | libusb_error_name(ret)); | |
309 | break; | |
310 | } | |
311 | ||
96484e22 | 312 | if ((ret = logic16_init_device(sdi)) != SR_OK) { |
15abcf0f MC |
313 | sr_err("Failed to init device."); |
314 | break; | |
315 | } | |
316 | ||
5eea4305 | 317 | sdi->status = SR_ST_ACTIVE; |
ce7d3578 SA |
318 | sr_info("Opened device on %d.%d (logical) / %s (physical), interface %d.", |
319 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
320 | |
321 | break; | |
322 | } | |
323 | libusb_free_device_list(devlist, 1); | |
324 | ||
0c30b35f SY |
325 | if (sdi->status != SR_ST_ACTIVE) { |
326 | if (usb->devhdl) { | |
327 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
328 | libusb_close(usb->devhdl); | |
329 | usb->devhdl = NULL; | |
330 | } | |
5eea4305 | 331 | return SR_ERR; |
0c30b35f | 332 | } |
5eea4305 MC |
333 | |
334 | return SR_OK; | |
335 | } | |
336 | ||
c463dcf0 MC |
337 | static int dev_open(struct sr_dev_inst *sdi) |
338 | { | |
5eea4305 MC |
339 | struct dev_context *devc; |
340 | int ret; | |
341 | int64_t timediff_us, timediff_ms; | |
342 | ||
343 | devc = sdi->priv; | |
5eea4305 MC |
344 | |
345 | /* | |
346 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
347 | * milliseconds for the FX2 to renumerate. | |
348 | */ | |
349 | ret = SR_ERR; | |
350 | if (devc->fw_updated > 0) { | |
351 | sr_info("Waiting for device to reset."); | |
352 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
353 | g_usleep(300 * 1000); | |
354 | timediff_ms = 0; | |
355 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
356 | if ((ret = logic16_dev_open(sdi)) == SR_OK) | |
357 | break; | |
358 | g_usleep(100 * 1000); | |
359 | ||
360 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
361 | timediff_ms = timediff_us / 1000; | |
362 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); | |
363 | } | |
364 | if (ret != SR_OK) { | |
365 | sr_err("Device failed to renumerate."); | |
366 | return SR_ERR; | |
367 | } | |
368 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); | |
369 | } else { | |
370 | sr_info("Firmware upload was not needed."); | |
371 | ret = logic16_dev_open(sdi); | |
372 | } | |
373 | ||
374 | if (ret != SR_OK) { | |
375 | sr_err("Unable to open device."); | |
376 | return SR_ERR; | |
377 | } | |
378 | ||
5eea4305 MC |
379 | if (devc->cur_samplerate == 0) { |
380 | /* Samplerate hasn't been set; default to the slowest one. */ | |
7b5daad4 | 381 | devc->cur_samplerate = samplerates[0]; |
5eea4305 | 382 | } |
c463dcf0 MC |
383 | |
384 | return SR_OK; | |
385 | } | |
386 | ||
387 | static int dev_close(struct sr_dev_inst *sdi) | |
388 | { | |
5eea4305 | 389 | struct sr_usb_dev_inst *usb; |
c463dcf0 | 390 | |
5eea4305 | 391 | usb = sdi->conn; |
98fec29e | 392 | if (!usb->devhdl) |
5eea4305 | 393 | return SR_ERR; |
c463dcf0 | 394 | |
ce7d3578 SA |
395 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", |
396 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
5eea4305 MC |
397 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
398 | libusb_close(usb->devhdl); | |
399 | usb->devhdl = NULL; | |
c463dcf0 MC |
400 | sdi->status = SR_ST_INACTIVE; |
401 | ||
402 | return SR_OK; | |
403 | } | |
404 | ||
584560f1 | 405 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 406 | const struct sr_channel_group *cg) |
c463dcf0 | 407 | { |
7b5daad4 | 408 | struct dev_context *devc; |
b117363a | 409 | struct sr_usb_dev_inst *usb; |
db11d7d2 | 410 | GVariant *range[2]; |
b117363a | 411 | char str[128]; |
c463dcf0 | 412 | int ret; |
96484e22 | 413 | unsigned int i; |
c463dcf0 | 414 | |
53b4680f | 415 | (void)cg; |
d3c74a6f | 416 | |
c463dcf0 MC |
417 | ret = SR_OK; |
418 | switch (key) { | |
b117363a MC |
419 | case SR_CONF_CONN: |
420 | if (!sdi || !sdi->conn) | |
421 | return SR_ERR_ARG; | |
422 | usb = sdi->conn; | |
423 | if (usb->address == 255) | |
424 | /* Device still needs to re-enumerate after firmware | |
425 | * upload, so we don't know its (future) address. */ | |
426 | return SR_ERR; | |
427 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
428 | *data = g_variant_new_string(str); | |
429 | break; | |
7b5daad4 MC |
430 | case SR_CONF_SAMPLERATE: |
431 | if (!sdi) | |
432 | return SR_ERR; | |
433 | devc = sdi->priv; | |
434 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
435 | break; | |
5a971f66 AJ |
436 | case SR_CONF_CAPTURE_RATIO: |
437 | if (!sdi) | |
438 | return SR_ERR; | |
439 | devc = sdi->priv; | |
440 | *data = g_variant_new_uint64(devc->capture_ratio); | |
441 | break; | |
db11d7d2 MC |
442 | case SR_CONF_VOLTAGE_THRESHOLD: |
443 | if (!sdi) | |
444 | return SR_ERR; | |
445 | devc = sdi->priv; | |
446 | ret = SR_ERR; | |
96484e22 UH |
447 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { |
448 | if (devc->selected_voltage_range != | |
449 | volt_thresholds[i].range) | |
450 | continue; | |
451 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
452 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
453 | *data = g_variant_new_tuple(range, 2); | |
454 | ret = SR_OK; | |
455 | break; | |
456 | } | |
db11d7d2 | 457 | break; |
c463dcf0 MC |
458 | default: |
459 | return SR_ERR_NA; | |
460 | } | |
461 | ||
462 | return ret; | |
463 | } | |
464 | ||
584560f1 | 465 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 466 | const struct sr_channel_group *cg) |
c463dcf0 | 467 | { |
7b5daad4 | 468 | struct dev_context *devc; |
db11d7d2 | 469 | gdouble low, high; |
c463dcf0 | 470 | int ret; |
96484e22 | 471 | unsigned int i; |
c463dcf0 | 472 | |
53b4680f | 473 | (void)cg; |
d3c74a6f | 474 | |
c463dcf0 MC |
475 | if (sdi->status != SR_ST_ACTIVE) |
476 | return SR_ERR_DEV_CLOSED; | |
477 | ||
7b5daad4 MC |
478 | devc = sdi->priv; |
479 | ||
c463dcf0 MC |
480 | ret = SR_OK; |
481 | switch (key) { | |
7b5daad4 MC |
482 | case SR_CONF_SAMPLERATE: |
483 | devc->cur_samplerate = g_variant_get_uint64(data); | |
484 | break; | |
485 | case SR_CONF_LIMIT_SAMPLES: | |
486 | devc->limit_samples = g_variant_get_uint64(data); | |
487 | break; | |
5a971f66 AJ |
488 | case SR_CONF_CAPTURE_RATIO: |
489 | devc->capture_ratio = g_variant_get_uint64(data); | |
a5c38703 | 490 | ret = (devc->capture_ratio > 100) ? SR_ERR : SR_OK; |
5a971f66 | 491 | break; |
db11d7d2 MC |
492 | case SR_CONF_VOLTAGE_THRESHOLD: |
493 | g_variant_get(data, "(dd)", &low, &high); | |
494 | ret = SR_ERR_ARG; | |
495 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
496 | if (fabs(volt_thresholds[i].low - low) < 0.1 && | |
497 | fabs(volt_thresholds[i].high - high) < 0.1) { | |
498 | devc->selected_voltage_range = | |
499 | volt_thresholds[i].range; | |
500 | ret = SR_OK; | |
501 | break; | |
502 | } | |
503 | } | |
504 | break; | |
c463dcf0 MC |
505 | default: |
506 | ret = SR_ERR_NA; | |
507 | } | |
508 | ||
509 | return ret; | |
510 | } | |
511 | ||
584560f1 | 512 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 513 | const struct sr_channel_group *cg) |
c463dcf0 | 514 | { |
db11d7d2 | 515 | GVariant *gvar, *range[2]; |
7b5daad4 | 516 | GVariantBuilder gvb; |
c463dcf0 | 517 | int ret; |
96484e22 | 518 | unsigned int i; |
c463dcf0 MC |
519 | |
520 | (void)sdi; | |
53b4680f | 521 | (void)cg; |
c463dcf0 MC |
522 | |
523 | ret = SR_OK; | |
524 | switch (key) { | |
b117363a | 525 | case SR_CONF_SCAN_OPTIONS: |
584560f1 | 526 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
a0e0bb41 | 527 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
b117363a MC |
528 | break; |
529 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 530 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 531 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
b117363a | 532 | break; |
7b5daad4 MC |
533 | case SR_CONF_SAMPLERATE: |
534 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
96484e22 UH |
535 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), |
536 | samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
7b5daad4 MC |
537 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); |
538 | *data = g_variant_builder_end(&gvb); | |
db11d7d2 MC |
539 | break; |
540 | case SR_CONF_VOLTAGE_THRESHOLD: | |
541 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
542 | for (i = 0; i < ARRAY_SIZE(volt_thresholds); i++) { | |
543 | range[0] = g_variant_new_double(volt_thresholds[i].low); | |
544 | range[1] = g_variant_new_double(volt_thresholds[i].high); | |
545 | gvar = g_variant_new_tuple(range, 2); | |
546 | g_variant_builder_add_value(&gvb, gvar); | |
547 | } | |
548 | *data = g_variant_builder_end(&gvb); | |
7b5daad4 | 549 | break; |
863357fb BV |
550 | case SR_CONF_TRIGGER_MATCH: |
551 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
552 | soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), | |
553 | sizeof(int32_t)); | |
554 | break; | |
c463dcf0 MC |
555 | default: |
556 | return SR_ERR_NA; | |
557 | } | |
558 | ||
559 | return ret; | |
560 | } | |
561 | ||
7b5daad4 MC |
562 | static void abort_acquisition(struct dev_context *devc) |
563 | { | |
564 | int i; | |
565 | ||
863357fb | 566 | devc->sent_samples = -1; |
7b5daad4 MC |
567 | |
568 | for (i = devc->num_transfers - 1; i >= 0; i--) { | |
569 | if (devc->transfers[i]) | |
570 | libusb_cancel_transfer(devc->transfers[i]); | |
571 | } | |
572 | } | |
573 | ||
574 | static unsigned int bytes_per_ms(struct dev_context *devc) | |
575 | { | |
576 | return devc->cur_samplerate * devc->num_channels / 8000; | |
577 | } | |
578 | ||
579 | static size_t get_buffer_size(struct dev_context *devc) | |
580 | { | |
581 | size_t s; | |
582 | ||
583 | /* | |
584 | * The buffer should be large enough to hold 10ms of data and | |
585 | * a multiple of 512. | |
586 | */ | |
587 | s = 10 * bytes_per_ms(devc); | |
588 | return (s + 511) & ~511; | |
589 | } | |
590 | ||
591 | static unsigned int get_number_of_transfers(struct dev_context *devc) | |
592 | { | |
593 | unsigned int n; | |
594 | ||
595 | /* Total buffer size should be able to hold about 500ms of data. */ | |
596 | n = 500 * bytes_per_ms(devc) / get_buffer_size(devc); | |
597 | ||
598 | if (n > NUM_SIMUL_TRANSFERS) | |
599 | return NUM_SIMUL_TRANSFERS; | |
600 | ||
601 | return n; | |
602 | } | |
603 | ||
604 | static unsigned int get_timeout(struct dev_context *devc) | |
605 | { | |
606 | size_t total_size; | |
607 | unsigned int timeout; | |
608 | ||
609 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); | |
610 | timeout = total_size / bytes_per_ms(devc); | |
611 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ | |
612 | } | |
613 | ||
ba7dd8bb | 614 | static int configure_channels(const struct sr_dev_inst *sdi) |
7b5daad4 MC |
615 | { |
616 | struct dev_context *devc; | |
ba7dd8bb | 617 | struct sr_channel *ch; |
7b5daad4 | 618 | GSList *l; |
ba7dd8bb | 619 | uint16_t channel_bit; |
7b5daad4 MC |
620 | |
621 | devc = sdi->priv; | |
622 | ||
623 | devc->cur_channels = 0; | |
624 | devc->num_channels = 0; | |
ba7dd8bb UH |
625 | for (l = sdi->channels; l; l = l->next) { |
626 | ch = (struct sr_channel *)l->data; | |
627 | if (ch->enabled == FALSE) | |
7b5daad4 MC |
628 | continue; |
629 | ||
ba7dd8bb | 630 | channel_bit = 1 << (ch->index); |
7b5daad4 | 631 | |
ba7dd8bb | 632 | devc->cur_channels |= channel_bit; |
7b5daad4 MC |
633 | |
634 | #ifdef WORDS_BIGENDIAN | |
96484e22 UH |
635 | /* |
636 | * Output logic data should be stored in little endian format. | |
637 | * To speed things up during conversion, do the switcharoo | |
638 | * here instead. | |
639 | */ | |
ba7dd8bb | 640 | channel_bit = 1 << (ch->index ^ 8); |
7b5daad4 MC |
641 | #endif |
642 | ||
ba7dd8bb | 643 | devc->channel_masks[devc->num_channels++] = channel_bit; |
7b5daad4 MC |
644 | } |
645 | ||
646 | return SR_OK; | |
647 | } | |
648 | ||
649 | static int receive_data(int fd, int revents, void *cb_data) | |
650 | { | |
651 | struct timeval tv; | |
652 | struct dev_context *devc; | |
653 | struct drv_context *drvc; | |
654 | const struct sr_dev_inst *sdi; | |
4f840ce9 | 655 | struct sr_dev_driver *di; |
7b5daad4 MC |
656 | |
657 | (void)fd; | |
658 | (void)revents; | |
659 | ||
660 | sdi = cb_data; | |
4f840ce9 | 661 | di = sdi->driver; |
41812aca | 662 | drvc = di->context; |
7b5daad4 MC |
663 | devc = sdi->priv; |
664 | ||
665 | tv.tv_sec = tv.tv_usec = 0; | |
666 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
667 | ||
863357fb | 668 | if (devc->sent_samples == -2) { |
96484e22 | 669 | logic16_abort_acquisition(sdi); |
7b5daad4 MC |
670 | abort_acquisition(devc); |
671 | } | |
672 | ||
673 | return TRUE; | |
674 | } | |
675 | ||
695dc859 | 676 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
c463dcf0 | 677 | { |
4f840ce9 | 678 | struct sr_dev_driver *di = sdi->driver; |
7b5daad4 MC |
679 | struct dev_context *devc; |
680 | struct drv_context *drvc; | |
681 | struct sr_usb_dev_inst *usb; | |
863357fb | 682 | struct sr_trigger *trigger; |
7b5daad4 | 683 | struct libusb_transfer *transfer; |
7b5daad4 MC |
684 | unsigned int i, timeout, num_transfers; |
685 | int ret; | |
686 | unsigned char *buf; | |
687 | size_t size, convsize; | |
c463dcf0 MC |
688 | |
689 | if (sdi->status != SR_ST_ACTIVE) | |
690 | return SR_ERR_DEV_CLOSED; | |
691 | ||
41812aca | 692 | drvc = di->context; |
7b5daad4 MC |
693 | devc = sdi->priv; |
694 | usb = sdi->conn; | |
695 | ||
96484e22 | 696 | /* Configures devc->cur_channels. */ |
ba7dd8bb UH |
697 | if (configure_channels(sdi) != SR_OK) { |
698 | sr_err("Failed to configure channels."); | |
7b5daad4 MC |
699 | return SR_ERR; |
700 | } | |
701 | ||
863357fb | 702 | devc->sent_samples = 0; |
7b5daad4 MC |
703 | devc->empty_transfer_count = 0; |
704 | devc->cur_channel = 0; | |
705 | memset(devc->channel_data, 0, sizeof(devc->channel_data)); | |
706 | ||
0812c40e | 707 | if ((trigger = sr_session_trigger_get(sdi->session))) { |
5a971f66 AJ |
708 | int pre_trigger_samples = 0; |
709 | if (devc->limit_samples > 0) | |
710 | pre_trigger_samples = devc->capture_ratio * devc->limit_samples/100; | |
711 | devc->stl = soft_trigger_logic_new(sdi, trigger, pre_trigger_samples); | |
98fec29e | 712 | if (!devc->stl) |
5a971f66 | 713 | return SR_ERR_MALLOC; |
863357fb BV |
714 | devc->trigger_fired = FALSE; |
715 | } else | |
716 | devc->trigger_fired = TRUE; | |
717 | ||
7b5daad4 MC |
718 | timeout = get_timeout(devc); |
719 | num_transfers = get_number_of_transfers(devc); | |
720 | size = get_buffer_size(devc); | |
721 | convsize = (size / devc->num_channels + 2) * 16; | |
722 | devc->submitted_transfers = 0; | |
7b5daad4 MC |
723 | |
724 | devc->convbuffer_size = convsize; | |
725 | if (!(devc->convbuffer = g_try_malloc(convsize))) { | |
726 | sr_err("Conversion buffer malloc failed."); | |
727 | return SR_ERR_MALLOC; | |
728 | } | |
729 | ||
730 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); | |
731 | if (!devc->transfers) { | |
732 | sr_err("USB transfers malloc failed."); | |
733 | g_free(devc->convbuffer); | |
734 | return SR_ERR_MALLOC; | |
735 | } | |
736 | ||
96484e22 UH |
737 | if ((ret = logic16_setup_acquisition(sdi, devc->cur_samplerate, |
738 | devc->cur_channels)) != SR_OK) { | |
7b5daad4 MC |
739 | g_free(devc->transfers); |
740 | g_free(devc->convbuffer); | |
741 | return ret; | |
742 | } | |
743 | ||
744 | devc->num_transfers = num_transfers; | |
745 | for (i = 0; i < num_transfers; i++) { | |
746 | if (!(buf = g_try_malloc(size))) { | |
747 | sr_err("USB transfer buffer malloc failed."); | |
748 | if (devc->submitted_transfers) | |
749 | abort_acquisition(devc); | |
750 | else { | |
751 | g_free(devc->transfers); | |
752 | g_free(devc->convbuffer); | |
753 | } | |
754 | return SR_ERR_MALLOC; | |
755 | } | |
756 | transfer = libusb_alloc_transfer(0); | |
757 | libusb_fill_bulk_transfer(transfer, usb->devhdl, | |
758 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
102f1239 | 759 | logic16_receive_transfer, (void *)sdi, timeout); |
7b5daad4 MC |
760 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
761 | sr_err("Failed to submit transfer: %s.", | |
762 | libusb_error_name(ret)); | |
763 | libusb_free_transfer(transfer); | |
764 | g_free(buf); | |
765 | abort_acquisition(devc); | |
766 | return SR_ERR; | |
767 | } | |
768 | devc->transfers[i] = transfer; | |
769 | devc->submitted_transfers++; | |
770 | } | |
771 | ||
6c60facc ML |
772 | devc->ctx = drvc->sr_ctx; |
773 | ||
102f1239 | 774 | usb_source_add(sdi->session, devc->ctx, timeout, receive_data, (void *)sdi); |
7b5daad4 | 775 | |
695dc859 | 776 | std_session_send_df_header(sdi, LOG_PREFIX); |
7b5daad4 | 777 | |
96484e22 | 778 | if ((ret = logic16_start_acquisition(sdi)) != SR_OK) { |
7b5daad4 MC |
779 | abort_acquisition(devc); |
780 | return ret; | |
781 | } | |
c463dcf0 MC |
782 | |
783 | return SR_OK; | |
784 | } | |
785 | ||
695dc859 | 786 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
c463dcf0 | 787 | { |
7b5daad4 MC |
788 | int ret; |
789 | ||
c463dcf0 MC |
790 | if (sdi->status != SR_ST_ACTIVE) |
791 | return SR_ERR_DEV_CLOSED; | |
792 | ||
96484e22 | 793 | ret = logic16_abort_acquisition(sdi); |
c463dcf0 | 794 | |
7b5daad4 MC |
795 | abort_acquisition(sdi->priv); |
796 | ||
797 | return ret; | |
c463dcf0 MC |
798 | } |
799 | ||
800 | SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = { | |
801 | .name = "saleae-logic16", | |
802 | .longname = "Saleae Logic16", | |
803 | .api_version = 1, | |
804 | .init = init, | |
700d6b64 | 805 | .cleanup = std_cleanup, |
c463dcf0 MC |
806 | .scan = scan, |
807 | .dev_list = dev_list, | |
a6630742 | 808 | .dev_clear = NULL, |
c463dcf0 MC |
809 | .config_get = config_get, |
810 | .config_set = config_set, | |
811 | .config_list = config_list, | |
812 | .dev_open = dev_open, | |
813 | .dev_close = dev_close, | |
814 | .dev_acquisition_start = dev_acquisition_start, | |
815 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 816 | .context = NULL, |
c463dcf0 | 817 | }; |