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Commit | Line | Data |
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f302a082 JH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
cf94c816 | 4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> |
f302a082 JH |
5 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
6b73d9a5 | 23 | #include <string.h> |
8b35f474 | 24 | #include <inttypes.h> |
187b3582 | 25 | #include <libusb.h> |
f302a082 | 26 | #include "config.h" |
45c59c8b BV |
27 | #include "libsigrok.h" |
28 | #include "libsigrok-internal.h" | |
f302a082 | 29 | #include "fx2lafw.h" |
f6582cd7 | 30 | #include "command.h" |
f302a082 | 31 | |
4679d14d | 32 | static const struct fx2lafw_profile supported_fx2[] = { |
7ae2f9d5 UH |
33 | /* |
34 | * CWAV USBee AX | |
17b6c75a | 35 | * EE Electronics ESLA201A |
9f05304e | 36 | * ARMFLY AX-Pro |
17b6c75a | 37 | */ |
f8b07fc6 | 38 | { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, |
d1ddc7a9 JH |
39 | FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", |
40 | 0 }, | |
0e8d0e24 IF |
41 | /* |
42 | * CWAV USBee DX | |
43 | * XZL-Studio DX | |
44 | */ | |
45 | { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL, | |
46 | FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw", | |
47 | DEV_CAPS_16BIT }, | |
93a9f3da | 48 | |
7ae2f9d5 UH |
49 | /* |
50 | * CWAV USBee SX | |
4502e869 JH |
51 | */ |
52 | { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, | |
d1ddc7a9 JH |
53 | FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", |
54 | 0 }, | |
4502e869 | 55 | |
7ae2f9d5 UH |
56 | /* |
57 | * Saleae Logic | |
93a9f3da JH |
58 | * EE Electronics ESLA100 |
59 | * Robomotic MiniLogic | |
1663e470 | 60 | * Robomotic BugLogic 3 |
93a9f3da JH |
61 | */ |
62 | { 0x0925, 0x3881, "Saleae", "Logic", NULL, | |
d1ddc7a9 JH |
63 | FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", |
64 | 0 }, | |
93a9f3da | 65 | |
f488762a | 66 | /* |
1663e470 UH |
67 | * Default Cypress FX2 without EEPROM, e.g.: |
68 | * Lcsoft Mini Board | |
69 | * Braintechnology USB Interface V2.x | |
f488762a JH |
70 | */ |
71 | { 0x04B4, 0x8613, "Cypress", "FX2", NULL, | |
d1ddc7a9 JH |
72 | FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw", |
73 | DEV_CAPS_16BIT }, | |
f488762a | 74 | |
1663e470 UH |
75 | /* |
76 | * Braintechnology USB-LPS | |
77 | */ | |
78 | { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL, | |
d1ddc7a9 JH |
79 | FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw", |
80 | DEV_CAPS_16BIT }, | |
1663e470 | 81 | |
f8b07fc6 | 82 | { 0, 0, 0, 0, 0, 0, 0 } |
187b3582 JH |
83 | }; |
84 | ||
915f7cc8 | 85 | static const int hwcaps[] = { |
8b35f474 JH |
86 | SR_HWCAP_LOGIC_ANALYZER, |
87 | SR_HWCAP_SAMPLERATE, | |
88 | ||
89 | /* These are really implemented in the driver, not the hardware. */ | |
90 | SR_HWCAP_LIMIT_SAMPLES, | |
91 | SR_HWCAP_CONTINUOUS, | |
772a0e61 | 92 | 0, |
8b35f474 JH |
93 | }; |
94 | ||
da686568 | 95 | static const char *probe_names[] = { |
7ae2f9d5 UH |
96 | "0", |
97 | "1", | |
98 | "2", | |
99 | "3", | |
100 | "4", | |
101 | "5", | |
102 | "6", | |
103 | "7", | |
d1ddc7a9 JH |
104 | "8", |
105 | "9", | |
106 | "10", | |
107 | "11", | |
108 | "12", | |
109 | "13", | |
110 | "14", | |
111 | "15", | |
772a0e61 | 112 | NULL, |
8b35f474 JH |
113 | }; |
114 | ||
a533743d | 115 | static const uint64_t supported_samplerates[] = { |
79dc6498 JH |
116 | SR_KHZ(20), |
117 | SR_KHZ(25), | |
897c1a2e JH |
118 | SR_KHZ(50), |
119 | SR_KHZ(100), | |
9304d576 JH |
120 | SR_KHZ(200), |
121 | SR_KHZ(250), | |
122 | SR_KHZ(500), | |
8b35f474 JH |
123 | SR_MHZ(1), |
124 | SR_MHZ(2), | |
125 | SR_MHZ(3), | |
126 | SR_MHZ(4), | |
127 | SR_MHZ(6), | |
128 | SR_MHZ(8), | |
129 | SR_MHZ(12), | |
130 | SR_MHZ(16), | |
772a0e61 | 131 | SR_MHZ(24), |
934cde02 | 132 | 0, |
8b35f474 JH |
133 | }; |
134 | ||
a533743d | 135 | static const struct sr_samplerates samplerates = { |
590b9f9a UH |
136 | 0, |
137 | 0, | |
138 | 0, | |
139 | supported_samplerates, | |
8b35f474 JH |
140 | }; |
141 | ||
a8cc8e44 BV |
142 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info; |
143 | static struct sr_dev_driver *fdi = &fx2lafw_driver_info; | |
25a0f108 | 144 | static int hw_dev_close(struct sr_dev_inst *sdi); |
6f4b1868 BV |
145 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
146 | const void *value); | |
3ffb6964 BV |
147 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
148 | void *cb_data); | |
610dbb70 | 149 | |
b1eeb67e JH |
150 | /** |
151 | * Check the USB configuration to determine if this is an fx2lafw device. | |
152 | * | |
f9a69557 UH |
153 | * @return TRUE if the device's configuration profile match fx2lafw |
154 | * configuration, FALSE otherwise. | |
b1eeb67e | 155 | */ |
f9a69557 | 156 | static gboolean check_conf_profile(libusb_device *dev) |
b1eeb67e JH |
157 | { |
158 | struct libusb_device_descriptor des; | |
6b73d9a5 BV |
159 | struct libusb_device_handle *hdl; |
160 | gboolean ret; | |
161 | unsigned char strdesc[64]; | |
b1eeb67e | 162 | |
6b73d9a5 BV |
163 | hdl = NULL; |
164 | ret = FALSE; | |
b1eeb67e | 165 | while (!ret) { |
da686568 | 166 | /* Assume the FW has not been loaded, unless proven wrong. */ |
b1eeb67e JH |
167 | if (libusb_get_device_descriptor(dev, &des) != 0) |
168 | break; | |
169 | ||
6b73d9a5 | 170 | if (libusb_open(dev, &hdl) != 0) |
b1eeb67e JH |
171 | break; |
172 | ||
6b73d9a5 BV |
173 | if (libusb_get_string_descriptor_ascii(hdl, |
174 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) | |
b1eeb67e | 175 | break; |
6b73d9a5 | 176 | if (strncmp((const char *)strdesc, "sigrok", 6)) |
b1eeb67e JH |
177 | break; |
178 | ||
6b73d9a5 BV |
179 | if (libusb_get_string_descriptor_ascii(hdl, |
180 | des.iProduct, strdesc, sizeof(strdesc)) < 0) | |
b1eeb67e | 181 | break; |
6b73d9a5 | 182 | if (strncmp((const char *)strdesc, "fx2lafw", 7)) |
b1eeb67e JH |
183 | break; |
184 | ||
b1eeb67e | 185 | /* If we made it here, it must be an fx2lafw. */ |
f9a69557 | 186 | ret = TRUE; |
b1eeb67e | 187 | } |
6b73d9a5 BV |
188 | if (hdl) |
189 | libusb_close(hdl); | |
b1eeb67e JH |
190 | |
191 | return ret; | |
192 | } | |
193 | ||
25a0f108 | 194 | static int fx2lafw_dev_open(struct sr_dev_inst *sdi) |
43125c69 JH |
195 | { |
196 | libusb_device **devlist; | |
197 | struct libusb_device_descriptor des; | |
dc9dbe94 BV |
198 | struct drv_context *drvc; |
199 | struct dev_context *devc; | |
13bf7ecc | 200 | struct version_info vi; |
ebc34738 | 201 | int ret, skip, i; |
1e94408a | 202 | uint8_t revid; |
43125c69 | 203 | |
dc9dbe94 BV |
204 | drvc = fdi->priv; |
205 | devc = sdi->priv; | |
43125c69 JH |
206 | |
207 | if (sdi->status == SR_ST_ACTIVE) | |
208 | /* already in use */ | |
209 | return SR_ERR; | |
210 | ||
211 | skip = 0; | |
dc9dbe94 | 212 | const int device_count = libusb_get_device_list(drvc->usb_context, &devlist); |
6fbe5e60 JH |
213 | if (device_count < 0) { |
214 | sr_err("fx2lafw: Failed to retrieve device list (%d)", | |
215 | device_count); | |
216 | return SR_ERR; | |
217 | } | |
218 | ||
219 | for (i = 0; i < device_count; i++) { | |
ebc34738 | 220 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
7ae2f9d5 UH |
221 | sr_err("fx2lafw: Failed to get device descriptor: %d.", |
222 | ret); | |
43125c69 JH |
223 | continue; |
224 | } | |
225 | ||
dc9dbe94 BV |
226 | if (des.idVendor != devc->profile->vid |
227 | || des.idProduct != devc->profile->pid) | |
43125c69 JH |
228 | continue; |
229 | ||
230 | if (sdi->status == SR_ST_INITIALIZING) { | |
25a0f108 | 231 | if (skip != sdi->index) { |
43125c69 JH |
232 | /* Skip devices of this type that aren't the one we want. */ |
233 | skip += 1; | |
234 | continue; | |
235 | } | |
236 | } else if (sdi->status == SR_ST_INACTIVE) { | |
237 | /* | |
238 | * This device is fully enumerated, so we need to find | |
239 | * this device by vendor, product, bus and address. | |
240 | */ | |
dc9dbe94 BV |
241 | if (libusb_get_bus_number(devlist[i]) != devc->usb->bus |
242 | || libusb_get_device_address(devlist[i]) != devc->usb->address) | |
43125c69 JH |
243 | /* this is not the one */ |
244 | continue; | |
245 | } | |
246 | ||
dc9dbe94 BV |
247 | if (!(ret = libusb_open(devlist[i], &devc->usb->devhdl))) { |
248 | if (devc->usb->address == 0xff) | |
43125c69 JH |
249 | /* |
250 | * first time we touch this device after firmware upload, | |
251 | * so we don't know the address yet. | |
252 | */ | |
dc9dbe94 | 253 | devc->usb->address = libusb_get_device_address(devlist[i]); |
43125c69 | 254 | } else { |
7ae2f9d5 | 255 | sr_err("fx2lafw: Failed to open device: %d.", ret); |
13bf7ecc JH |
256 | break; |
257 | } | |
258 | ||
dc9dbe94 | 259 | ret = command_get_fw_version(devc->usb->devhdl, &vi); |
44dfd483 | 260 | if (ret != SR_OK) { |
13bf7ecc | 261 | sr_err("fx2lafw: Failed to retrieve " |
44dfd483 | 262 | "firmware version information."); |
13bf7ecc | 263 | break; |
43125c69 JH |
264 | } |
265 | ||
dc9dbe94 | 266 | ret = command_get_revid_version(devc->usb->devhdl, &revid); |
1e94408a UH |
267 | if (ret != SR_OK) { |
268 | sr_err("fx2lafw: Failed to retrieve REVID."); | |
269 | break; | |
270 | } | |
271 | ||
0a8c0c32 UH |
272 | /* |
273 | * Changes in major version mean incompatible/API changes, so | |
274 | * bail out if we encounter an incompatible version. | |
275 | * Different minor versions are OK, they should be compatible. | |
276 | */ | |
277 | if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) { | |
278 | sr_err("fx2lafw: Expected firmware version %d.x, " | |
279 | "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR, | |
280 | vi.major, vi.minor); | |
13bf7ecc JH |
281 | break; |
282 | } | |
283 | ||
284 | sdi->status = SR_ST_ACTIVE; | |
285 | sr_info("fx2lafw: Opened device %d on %d.%d " | |
1e94408a | 286 | "interface %d, firmware %d.%d, REVID %d.", |
dc9dbe94 | 287 | sdi->index, devc->usb->bus, devc->usb->address, |
1e94408a | 288 | USB_INTERFACE, vi.major, vi.minor, revid); |
13bf7ecc | 289 | |
43125c69 JH |
290 | break; |
291 | } | |
292 | libusb_free_device_list(devlist, 1); | |
293 | ||
294 | if (sdi->status != SR_ST_ACTIVE) | |
295 | return SR_ERR; | |
296 | ||
297 | return SR_OK; | |
298 | } | |
299 | ||
014359e3 | 300 | static int configure_probes(const struct sr_dev_inst *sdi) |
6c6781b6 | 301 | { |
014359e3 | 302 | struct dev_context *devc; |
6c6781b6 JH |
303 | struct sr_probe *probe; |
304 | GSList *l; | |
305 | int probe_bit, stage, i; | |
306 | char *tc; | |
307 | ||
014359e3 | 308 | devc = sdi->priv; |
6c6781b6 | 309 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
dc9dbe94 BV |
310 | devc->trigger_mask[i] = 0; |
311 | devc->trigger_value[i] = 0; | |
6c6781b6 JH |
312 | } |
313 | ||
314 | stage = -1; | |
014359e3 | 315 | for (l = sdi->probes; l; l = l->next) { |
6c6781b6 JH |
316 | probe = (struct sr_probe *)l->data; |
317 | if (probe->enabled == FALSE) | |
318 | continue; | |
d1ddc7a9 | 319 | |
b35c8293 | 320 | if (probe->index > 7) |
dc9dbe94 | 321 | devc->sample_wide = TRUE; |
d1ddc7a9 | 322 | |
b35c8293 | 323 | probe_bit = 1 << (probe->index); |
6c6781b6 JH |
324 | if (!(probe->trigger)) |
325 | continue; | |
326 | ||
327 | stage = 0; | |
328 | for (tc = probe->trigger; *tc; tc++) { | |
dc9dbe94 | 329 | devc->trigger_mask[stage] |= probe_bit; |
6c6781b6 | 330 | if (*tc == '1') |
dc9dbe94 | 331 | devc->trigger_value[stage] |= probe_bit; |
6c6781b6 JH |
332 | stage++; |
333 | if (stage > NUM_TRIGGER_STAGES) | |
334 | return SR_ERR; | |
335 | } | |
336 | } | |
337 | ||
338 | if (stage == -1) | |
339 | /* | |
340 | * We didn't configure any triggers, make sure acquisition | |
341 | * doesn't wait for any. | |
342 | */ | |
dc9dbe94 | 343 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 344 | else |
dc9dbe94 | 345 | devc->trigger_stage = 0; |
6c6781b6 JH |
346 | |
347 | return SR_OK; | |
348 | } | |
349 | ||
dc9dbe94 | 350 | static struct dev_context *fx2lafw_dev_new(void) |
187b3582 | 351 | { |
dc9dbe94 | 352 | struct dev_context *devc; |
187b3582 | 353 | |
dc9dbe94 BV |
354 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
355 | sr_err("fx2lafw: %s: devc malloc failed.", __func__); | |
187b3582 JH |
356 | return NULL; |
357 | } | |
358 | ||
dc9dbe94 | 359 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 360 | |
dc9dbe94 | 361 | return devc; |
187b3582 | 362 | } |
f302a082 | 363 | |
f69b47f0 BV |
364 | static int clear_instances(void) |
365 | { | |
366 | GSList *l; | |
367 | struct sr_dev_inst *sdi; | |
dc9dbe94 BV |
368 | struct drv_context *drvc; |
369 | struct dev_context *devc; | |
f69b47f0 BV |
370 | int ret; |
371 | ||
dc9dbe94 | 372 | drvc = fdi->priv; |
f69b47f0 | 373 | ret = SR_OK; |
dc9dbe94 | 374 | for (l = drvc->instances; l; l = l->next) { |
f69b47f0 BV |
375 | if (!(sdi = l->data)) { |
376 | /* Log error, but continue cleaning up the rest. */ | |
377 | sr_err("fx2lafw: %s: sdi was NULL, continuing.", | |
378 | __func__); | |
379 | ret = SR_ERR_BUG; | |
380 | continue; | |
381 | } | |
dc9dbe94 | 382 | if (!(devc = sdi->priv)) { |
f69b47f0 BV |
383 | /* Log error, but continue cleaning up the rest. */ |
384 | sr_err("fx2lafw: %s: sdi->priv was NULL, continuing", | |
385 | __func__); | |
386 | ret = SR_ERR_BUG; | |
387 | continue; | |
388 | } | |
25a0f108 | 389 | hw_dev_close(sdi); |
fabe59b3 | 390 | sr_usb_dev_inst_free(devc->usb); |
f69b47f0 BV |
391 | sdi = l->data; |
392 | sr_dev_inst_free(sdi); | |
393 | } | |
394 | ||
dc9dbe94 BV |
395 | g_slist_free(drvc->instances); |
396 | drvc->instances = NULL; | |
f69b47f0 BV |
397 | |
398 | return ret; | |
399 | } | |
400 | ||
401 | ||
f302a082 JH |
402 | /* |
403 | * API callbacks | |
404 | */ | |
405 | ||
40dda2c3 | 406 | static int hw_init(void) |
61136ea6 | 407 | { |
dc9dbe94 BV |
408 | struct drv_context *drvc; |
409 | ||
410 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
411 | sr_err("fx2lafw: driver context malloc failed."); | |
412 | return SR_ERR; | |
413 | } | |
61136ea6 | 414 | |
dc9dbe94 BV |
415 | if (libusb_init(&drvc->usb_context) != 0) { |
416 | g_free(drvc); | |
61136ea6 BV |
417 | sr_warn("fx2lafw: Failed to initialize libusb."); |
418 | return SR_ERR; | |
419 | } | |
420 | ||
dc9dbe94 BV |
421 | fdi->priv = drvc; |
422 | ||
61136ea6 BV |
423 | return SR_OK; |
424 | } | |
425 | ||
3a7a22cb | 426 | static GSList *hw_scan(GSList *options) |
f302a082 | 427 | { |
3a7a22cb | 428 | GSList *devices; |
187b3582 | 429 | struct libusb_device_descriptor des; |
3a7a22cb | 430 | struct sr_dev_inst *sdi; |
da686568 | 431 | const struct fx2lafw_profile *prof; |
dc9dbe94 BV |
432 | struct drv_context *drvc; |
433 | struct dev_context *devc; | |
3a7a22cb | 434 | struct sr_probe *probe; |
187b3582 | 435 | libusb_device **devlist; |
3a7a22cb BV |
436 | int devcnt, num_logic_probes, ret, i, j; |
437 | ||
438 | /* Avoid compiler warnings. */ | |
439 | (void)options; | |
dc9dbe94 | 440 | drvc = fdi->priv; |
187b3582 | 441 | |
f69b47f0 BV |
442 | /* This scan always invalidates any previous scans. */ |
443 | clear_instances(); | |
444 | ||
921634ec | 445 | /* Find all fx2lafw compatible devices and upload firmware to them. */ |
3a7a22cb | 446 | devices = NULL; |
dc9dbe94 | 447 | libusb_get_device_list(drvc->usb_context, &devlist); |
187b3582 JH |
448 | for (i = 0; devlist[i]; i++) { |
449 | ||
ebc34738 | 450 | if ((ret = libusb_get_device_descriptor( |
7ae2f9d5 UH |
451 | devlist[i], &des)) != 0) { |
452 | sr_warn("fx2lafw: Failed to get device descriptor: %d.", ret); | |
187b3582 JH |
453 | continue; |
454 | } | |
455 | ||
da686568 | 456 | prof = NULL; |
187b3582 JH |
457 | for (j = 0; supported_fx2[j].vid; j++) { |
458 | if (des.idVendor == supported_fx2[j].vid && | |
459 | des.idProduct == supported_fx2[j].pid) { | |
da686568 | 460 | prof = &supported_fx2[j]; |
187b3582 JH |
461 | } |
462 | } | |
463 | ||
464 | /* Skip if the device was not found */ | |
da686568 | 465 | if (!prof) |
187b3582 JH |
466 | continue; |
467 | ||
dc9dbe94 | 468 | devcnt = g_slist_length(drvc->instances); |
187b3582 | 469 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, |
da686568 | 470 | prof->vendor, prof->model, prof->model_version); |
f4a9e5c0 | 471 | if (!sdi) |
25a0f108 | 472 | return NULL; |
c5e82ca5 | 473 | sdi->driver = fdi; |
187b3582 | 474 | |
06717a8a BV |
475 | /* Fill in probelist according to this device's profile. */ |
476 | num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; | |
c5e82ca5 | 477 | for (j = 0; j < num_logic_probes; j++) { |
06717a8a BV |
478 | if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE, |
479 | probe_names[j]))) | |
25a0f108 | 480 | return NULL; |
06717a8a BV |
481 | sdi->probes = g_slist_append(sdi->probes, probe); |
482 | } | |
483 | ||
dc9dbe94 BV |
484 | devc = fx2lafw_dev_new(); |
485 | devc->profile = prof; | |
486 | sdi->priv = devc; | |
487 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
a8cc8e44 | 488 | devices = g_slist_append(devices, sdi); |
187b3582 | 489 | |
b1eeb67e JH |
490 | if (check_conf_profile(devlist[i])) { |
491 | /* Already has the firmware, so fix the new address. */ | |
7ae2f9d5 | 492 | sr_dbg("fx2lafw: Found an fx2lafw device."); |
b1eeb67e | 493 | sdi->status = SR_ST_INACTIVE; |
dc9dbe94 | 494 | devc->usb = sr_usb_dev_inst_new |
b1eeb67e JH |
495 | (libusb_get_bus_number(devlist[i]), |
496 | libusb_get_device_address(devlist[i]), NULL); | |
497 | } else { | |
f8b07fc6 | 498 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
da686568 | 499 | prof->firmware) == SR_OK) |
b1eeb67e | 500 | /* Remember when the firmware on this device was updated */ |
dc9dbe94 | 501 | devc->fw_updated = g_get_monotonic_time(); |
b1eeb67e | 502 | else |
7ae2f9d5 UH |
503 | sr_err("fx2lafw: Firmware upload failed for " |
504 | "device %d.", devcnt); | |
dc9dbe94 | 505 | devc->usb = sr_usb_dev_inst_new |
b1eeb67e JH |
506 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); |
507 | } | |
187b3582 JH |
508 | } |
509 | libusb_free_device_list(devlist, 1); | |
510 | ||
3a7a22cb | 511 | return devices; |
f302a082 JH |
512 | } |
513 | ||
25a0f108 | 514 | static int hw_dev_open(struct sr_dev_inst *sdi) |
f302a082 | 515 | { |
dc9dbe94 | 516 | struct dev_context *devc; |
e8bd58ff UH |
517 | int ret; |
518 | int64_t timediff_us, timediff_ms; | |
43125c69 | 519 | |
dc9dbe94 | 520 | devc = sdi->priv; |
43125c69 JH |
521 | |
522 | /* | |
f60fdf6e UH |
523 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
524 | * milliseconds for the FX2 to renumerate. | |
43125c69 | 525 | */ |
3b6c1930 | 526 | ret = SR_ERR; |
dc9dbe94 | 527 | if (devc->fw_updated > 0) { |
7ae2f9d5 | 528 | sr_info("fx2lafw: Waiting for device to reset."); |
43125c69 JH |
529 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ |
530 | g_usleep(300 * 1000); | |
e8bd58ff | 531 | timediff_ms = 0; |
f60fdf6e | 532 | while (timediff_ms < MAX_RENUM_DELAY_MS) { |
25a0f108 | 533 | if ((ret = fx2lafw_dev_open(sdi)) == SR_OK) |
43125c69 JH |
534 | break; |
535 | g_usleep(100 * 1000); | |
e8bd58ff | 536 | |
dc9dbe94 | 537 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
3b6c1930 BV |
538 | timediff_ms = timediff_us / 1000; |
539 | sr_spew("fx2lafw: waited %" PRIi64 " ms", timediff_ms); | |
43125c69 | 540 | } |
e8bd58ff | 541 | sr_info("fx2lafw: Device came back after %d ms.", timediff_ms); |
43125c69 | 542 | } else { |
25a0f108 | 543 | ret = fx2lafw_dev_open(sdi); |
43125c69 JH |
544 | } |
545 | ||
ebc34738 | 546 | if (ret != SR_OK) { |
7ae2f9d5 | 547 | sr_err("fx2lafw: Unable to open device."); |
43125c69 JH |
548 | return SR_ERR; |
549 | } | |
dc9dbe94 | 550 | devc = sdi->priv; |
43125c69 | 551 | |
dc9dbe94 | 552 | ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
ebc34738 | 553 | if (ret != 0) { |
0c156e06 JH |
554 | switch(ret) { |
555 | case LIBUSB_ERROR_BUSY: | |
556 | sr_err("fx2lafw: Unable to claim USB interface. Another " | |
557 | "program or driver has already claimed it."); | |
558 | break; | |
559 | ||
560 | case LIBUSB_ERROR_NO_DEVICE: | |
561 | sr_err("fx2lafw: Device has been disconnected."); | |
562 | break; | |
563 | ||
564 | default: | |
565 | sr_err("fx2lafw: Unable to claim interface: %d.", ret); | |
566 | break; | |
567 | } | |
568 | ||
43125c69 JH |
569 | return SR_ERR; |
570 | } | |
571 | ||
dc9dbe94 | 572 | if (devc->cur_samplerate == 0) { |
f92994fd | 573 | /* Samplerate hasn't been set; default to the slowest one. */ |
6f4b1868 | 574 | if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE, |
590b9f9a | 575 | &supported_samplerates[0]) == SR_ERR) |
f92994fd JH |
576 | return SR_ERR; |
577 | } | |
578 | ||
f302a082 JH |
579 | return SR_OK; |
580 | } | |
581 | ||
25a0f108 | 582 | static int hw_dev_close(struct sr_dev_inst *sdi) |
f302a082 | 583 | { |
dc9dbe94 | 584 | struct dev_context *devc; |
f1898235 | 585 | |
dc9dbe94 BV |
586 | devc = sdi->priv; |
587 | if (devc->usb->devhdl == NULL) | |
25a0f108 | 588 | return SR_ERR; |
f1898235 | 589 | |
25a0f108 | 590 | sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", |
dc9dbe94 BV |
591 | sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE); |
592 | libusb_release_interface(devc->usb->devhdl, USB_INTERFACE); | |
593 | libusb_close(devc->usb->devhdl); | |
594 | devc->usb->devhdl = NULL; | |
25a0f108 | 595 | sdi->status = SR_ST_INACTIVE; |
f1898235 | 596 | |
f302a082 JH |
597 | return SR_OK; |
598 | } | |
599 | ||
600 | static int hw_cleanup(void) | |
601 | { | |
dc9dbe94 | 602 | struct drv_context *drvc; |
f69b47f0 | 603 | int ret; |
187b3582 | 604 | |
dc9dbe94 BV |
605 | if (!(drvc = fdi->priv)) |
606 | return SR_OK; | |
607 | ||
f69b47f0 | 608 | ret = clear_instances(); |
187b3582 | 609 | |
dc9dbe94 BV |
610 | if (drvc->usb_context) |
611 | libusb_exit(drvc->usb_context); | |
612 | drvc->usb_context = NULL; | |
613 | ||
614 | g_free(drvc); | |
615 | fdi->priv = NULL; | |
187b3582 | 616 | |
62bc70e4 | 617 | return ret; |
f302a082 JH |
618 | } |
619 | ||
cbd798f4 | 620 | static int hw_info_get(int info_id, const void **data, |
6e9339aa | 621 | const struct sr_dev_inst *sdi) |
f302a082 | 622 | { |
dc9dbe94 | 623 | struct dev_context *devc; |
8b35f474 | 624 | |
cbd798f4 | 625 | switch (info_id) { |
a27999e6 BV |
626 | case SR_DI_HWCAPS: |
627 | *data = hwcaps; | |
628 | break; | |
8b35f474 | 629 | case SR_DI_NUM_PROBES: |
6e9339aa | 630 | if (sdi) { |
dc9dbe94 | 631 | devc = sdi->priv; |
6e9339aa | 632 | *data = GINT_TO_POINTER( |
dc9dbe94 | 633 | (devc->profile->dev_caps & DEV_CAPS_16BIT) ? |
6e9339aa BV |
634 | 16 : 8); |
635 | } else | |
636 | return SR_ERR; | |
637 | break; | |
8b35f474 | 638 | case SR_DI_PROBE_NAMES: |
6e9339aa BV |
639 | *data = probe_names; |
640 | break; | |
8b35f474 | 641 | case SR_DI_SAMPLERATES: |
6e9339aa BV |
642 | *data = &samplerates; |
643 | break; | |
8b35f474 | 644 | case SR_DI_TRIGGER_TYPES: |
6e9339aa BV |
645 | *data = TRIGGER_TYPES; |
646 | break; | |
e3186647 | 647 | case SR_DI_CUR_SAMPLERATE: |
6e9339aa | 648 | if (sdi) { |
dc9dbe94 BV |
649 | devc = sdi->priv; |
650 | *data = &devc->cur_samplerate; | |
6e9339aa BV |
651 | } else |
652 | return SR_ERR; | |
653 | break; | |
654 | default: | |
655 | return SR_ERR_ARG; | |
8b35f474 JH |
656 | } |
657 | ||
6e9339aa | 658 | return SR_OK; |
f302a082 JH |
659 | } |
660 | ||
6f4b1868 BV |
661 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
662 | const void *value) | |
f302a082 | 663 | { |
dc9dbe94 | 664 | struct dev_context *devc; |
7cb621d4 JH |
665 | int ret; |
666 | ||
dc9dbe94 | 667 | devc = sdi->priv; |
7cb621d4 | 668 | |
e3186647 | 669 | if (hwcap == SR_HWCAP_SAMPLERATE) { |
dc9dbe94 | 670 | devc->cur_samplerate = *(const uint64_t *)value; |
e3186647 | 671 | ret = SR_OK; |
e3186647 | 672 | } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) { |
dc9dbe94 | 673 | devc->limit_samples = *(const uint64_t *)value; |
7cb621d4 JH |
674 | ret = SR_OK; |
675 | } else { | |
676 | ret = SR_ERR; | |
677 | } | |
678 | ||
679 | return ret; | |
f302a082 JH |
680 | } |
681 | ||
1f9813eb | 682 | static int receive_data(int fd, int revents, void *cb_data) |
610dbb70 | 683 | { |
dc9dbe94 | 684 | struct drv_context *drvc; |
610dbb70 JH |
685 | struct timeval tv; |
686 | ||
687 | /* Avoid compiler warnings. */ | |
688 | (void)fd; | |
689 | (void)revents; | |
1f9813eb | 690 | (void)cb_data; |
610dbb70 | 691 | |
dc9dbe94 | 692 | drvc = fdi->priv; |
610dbb70 | 693 | tv.tv_sec = tv.tv_usec = 0; |
dc9dbe94 | 694 | libusb_handle_events_timeout(drvc->usb_context, &tv); |
610dbb70 JH |
695 | |
696 | return TRUE; | |
697 | } | |
698 | ||
dc9dbe94 | 699 | static void abort_acquisition(struct dev_context *devc) |
cb61e9f7 | 700 | { |
e7d087bf | 701 | int i; |
0caa1ef0 | 702 | |
dc9dbe94 | 703 | devc->num_samples = -1; |
0caa1ef0 | 704 | |
dc9dbe94 BV |
705 | for (i = devc->num_transfers - 1; i >= 0; i--) { |
706 | if (devc->transfers[i]) | |
707 | libusb_cancel_transfer(devc->transfers[i]); | |
0caa1ef0 | 708 | } |
cb61e9f7 JH |
709 | } |
710 | ||
dc9dbe94 | 711 | static void finish_acquisition(struct dev_context *devc) |
2e526f4a | 712 | { |
dc9dbe94 | 713 | struct drv_context *drvc; |
2e526f4a | 714 | struct sr_datafeed_packet packet; |
cb61e9f7 | 715 | int i; |
2e526f4a | 716 | |
dc9dbe94 BV |
717 | drvc = fdi->priv; |
718 | ||
cb61e9f7 | 719 | /* Terminate session */ |
2e526f4a | 720 | packet.type = SR_DF_END; |
dc9dbe94 | 721 | sr_session_send(devc->session_dev_id, &packet); |
2e526f4a | 722 | |
cb61e9f7 JH |
723 | /* Remove fds from polling */ |
724 | const struct libusb_pollfd **const lupfd = | |
dc9dbe94 | 725 | libusb_get_pollfds(drvc->usb_context); |
cb61e9f7 JH |
726 | for (i = 0; lupfd[i]; i++) |
727 | sr_source_remove(lupfd[i]->fd); | |
728 | free(lupfd); /* NOT g_free()! */ | |
0caa1ef0 | 729 | |
dc9dbe94 BV |
730 | devc->num_transfers = 0; |
731 | g_free(devc->transfers); | |
2e526f4a JH |
732 | } |
733 | ||
f855de75 LPC |
734 | static void free_transfer(struct libusb_transfer *transfer) |
735 | { | |
dc9dbe94 | 736 | struct dev_context *devc = transfer->user_data; |
0caa1ef0 | 737 | unsigned int i; |
f855de75 LPC |
738 | |
739 | g_free(transfer->buffer); | |
740 | transfer->buffer = NULL; | |
741 | libusb_free_transfer(transfer); | |
742 | ||
dc9dbe94 BV |
743 | for (i = 0; i < devc->num_transfers; i++) { |
744 | if (devc->transfers[i] == transfer) { | |
745 | devc->transfers[i] = NULL; | |
0caa1ef0 LPC |
746 | break; |
747 | } | |
748 | } | |
749 | ||
dc9dbe94 BV |
750 | devc->submitted_transfers--; |
751 | if (devc->submitted_transfers == 0) | |
752 | finish_acquisition(devc); | |
f855de75 LPC |
753 | |
754 | } | |
755 | ||
17dff8a1 LPC |
756 | static void resubmit_transfer(struct libusb_transfer *transfer) |
757 | { | |
17dff8a1 LPC |
758 | if (libusb_submit_transfer(transfer) != 0) { |
759 | free_transfer(transfer); | |
760 | /* TODO: Stop session? */ | |
761 | /* TODO: Better error message. */ | |
762 | sr_err("fx2lafw: %s: libusb_submit_transfer error.", __func__); | |
763 | } | |
764 | } | |
765 | ||
610dbb70 JH |
766 | static void receive_transfer(struct libusb_transfer *transfer) |
767 | { | |
7ce737a7 | 768 | gboolean packet_has_error = FALSE; |
610dbb70 JH |
769 | struct sr_datafeed_packet packet; |
770 | struct sr_datafeed_logic logic; | |
dc9dbe94 | 771 | struct dev_context *devc = transfer->user_data; |
d1ddc7a9 | 772 | int trigger_offset, i; |
610dbb70 | 773 | |
610dbb70 JH |
774 | /* |
775 | * If acquisition has already ended, just free any queued up | |
776 | * transfer that come in. | |
777 | */ | |
dc9dbe94 | 778 | if (devc->num_samples == -1) { |
f855de75 | 779 | free_transfer(transfer); |
610dbb70 JH |
780 | return; |
781 | } | |
782 | ||
7ae2f9d5 | 783 | sr_info("fx2lafw: receive_transfer(): status %d received %d bytes.", |
610dbb70 JH |
784 | transfer->status, transfer->actual_length); |
785 | ||
786 | /* Save incoming transfer before reusing the transfer struct. */ | |
d1ddc7a9 | 787 | uint8_t *const cur_buf = transfer->buffer; |
dc9dbe94 | 788 | const int sample_width = devc->sample_wide ? 2 : 1; |
d1ddc7a9 | 789 | const int cur_sample_count = transfer->actual_length / sample_width; |
610dbb70 | 790 | |
7ce737a7 LPC |
791 | switch (transfer->status) { |
792 | case LIBUSB_TRANSFER_NO_DEVICE: | |
dc9dbe94 | 793 | abort_acquisition(devc); |
7ce737a7 LPC |
794 | free_transfer(transfer); |
795 | return; | |
796 | case LIBUSB_TRANSFER_COMPLETED: | |
797 | case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though */ | |
798 | break; | |
799 | default: | |
800 | packet_has_error = TRUE; | |
801 | break; | |
802 | } | |
803 | ||
804 | if (transfer->actual_length == 0 || packet_has_error) { | |
dc9dbe94 BV |
805 | devc->empty_transfer_count++; |
806 | if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
610dbb70 JH |
807 | /* |
808 | * The FX2 gave up. End the acquisition, the frontend | |
809 | * will work out that the samplecount is short. | |
810 | */ | |
dc9dbe94 | 811 | abort_acquisition(devc); |
17dff8a1 LPC |
812 | free_transfer(transfer); |
813 | } else { | |
814 | resubmit_transfer(transfer); | |
610dbb70 JH |
815 | } |
816 | return; | |
817 | } else { | |
dc9dbe94 | 818 | devc->empty_transfer_count = 0; |
610dbb70 JH |
819 | } |
820 | ||
6c6781b6 | 821 | trigger_offset = 0; |
dc9dbe94 | 822 | if (devc->trigger_stage >= 0) { |
d1ddc7a9 JH |
823 | for (i = 0; i < cur_sample_count; i++) { |
824 | ||
dc9dbe94 | 825 | const uint16_t cur_sample = devc->sample_wide ? |
d1ddc7a9 JH |
826 | *((const uint16_t*)cur_buf + i) : |
827 | *((const uint8_t*)cur_buf + i); | |
6c6781b6 | 828 | |
dc9dbe94 BV |
829 | if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) == |
830 | devc->trigger_value[devc->trigger_stage]) { | |
6c6781b6 | 831 | /* Match on this trigger stage. */ |
dc9dbe94 BV |
832 | devc->trigger_buffer[devc->trigger_stage] = cur_sample; |
833 | devc->trigger_stage++; | |
6c6781b6 | 834 | |
dc9dbe94 BV |
835 | if (devc->trigger_stage == NUM_TRIGGER_STAGES || |
836 | devc->trigger_mask[devc->trigger_stage] == 0) { | |
6c6781b6 JH |
837 | /* Match on all trigger stages, we're done. */ |
838 | trigger_offset = i + 1; | |
839 | ||
840 | /* | |
841 | * TODO: Send pre-trigger buffer to session bus. | |
842 | * Tell the frontend we hit the trigger here. | |
843 | */ | |
844 | packet.type = SR_DF_TRIGGER; | |
845 | packet.payload = NULL; | |
dc9dbe94 | 846 | sr_session_send(devc->session_dev_id, &packet); |
6c6781b6 JH |
847 | |
848 | /* | |
849 | * Send the samples that triggered it, since we're | |
850 | * skipping past them. | |
851 | */ | |
852 | packet.type = SR_DF_LOGIC; | |
853 | packet.payload = &logic; | |
dc9dbe94 BV |
854 | logic.unitsize = sizeof(*devc->trigger_buffer); |
855 | logic.length = devc->trigger_stage * logic.unitsize; | |
856 | logic.data = devc->trigger_buffer; | |
857 | sr_session_send(devc->session_dev_id, &packet); | |
6c6781b6 | 858 | |
dc9dbe94 | 859 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 JH |
860 | break; |
861 | } | |
dc9dbe94 | 862 | } else if (devc->trigger_stage > 0) { |
f3ab43a8 LPC |
863 | /* |
864 | * We had a match before, but not in the next sample. However, we may | |
865 | * have a match on this stage in the next bit -- trigger on 0001 will | |
866 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
867 | * the next sample from the one that matched originally, which the | |
868 | * counter increment at the end of the loop takes care of. | |
869 | */ | |
dc9dbe94 | 870 | i -= devc->trigger_stage; |
6c6781b6 JH |
871 | if (i < -1) |
872 | i = -1; /* Oops, went back past this buffer. */ | |
873 | /* Reset trigger stage. */ | |
dc9dbe94 | 874 | devc->trigger_stage = 0; |
6c6781b6 JH |
875 | } |
876 | } | |
877 | } | |
610dbb70 | 878 | |
dc9dbe94 | 879 | if (devc->trigger_stage == TRIGGER_FIRED) { |
6c6781b6 | 880 | /* Send the incoming transfer to the session bus. */ |
0a88ec3d | 881 | const int trigger_offset_bytes = trigger_offset * sample_width; |
6c6781b6 JH |
882 | packet.type = SR_DF_LOGIC; |
883 | packet.payload = &logic; | |
d1ddc7a9 JH |
884 | logic.length = transfer->actual_length - trigger_offset_bytes; |
885 | logic.unitsize = sample_width; | |
886 | logic.data = cur_buf + trigger_offset_bytes; | |
dc9dbe94 | 887 | sr_session_send(devc->session_dev_id, &packet); |
6c6781b6 | 888 | |
dc9dbe94 BV |
889 | devc->num_samples += cur_sample_count; |
890 | if (devc->limit_samples && | |
891 | (unsigned int)devc->num_samples > devc->limit_samples) { | |
892 | abort_acquisition(devc); | |
0caa1ef0 LPC |
893 | free_transfer(transfer); |
894 | return; | |
6c6781b6 JH |
895 | } |
896 | } else { | |
897 | /* | |
898 | * TODO: Buffer pre-trigger data in capture | |
899 | * ratio-sized buffer. | |
900 | */ | |
610dbb70 | 901 | } |
17dff8a1 LPC |
902 | |
903 | resubmit_transfer(transfer); | |
610dbb70 JH |
904 | } |
905 | ||
5af666a9 LPC |
906 | static unsigned int to_bytes_per_ms(unsigned int samplerate) |
907 | { | |
908 | return samplerate / 1000; | |
909 | } | |
910 | ||
dc9dbe94 | 911 | static size_t get_buffer_size(struct dev_context *devc) |
5af666a9 LPC |
912 | { |
913 | size_t s; | |
914 | ||
915 | /* The buffer should be large enough to hold 10ms of data and a multiple | |
916 | * of 512. */ | |
dc9dbe94 | 917 | s = 10 * to_bytes_per_ms(devc->cur_samplerate); |
5af666a9 LPC |
918 | return (s + 511) & ~511; |
919 | } | |
920 | ||
dc9dbe94 | 921 | static unsigned int get_number_of_transfers(struct dev_context *devc) |
5af666a9 LPC |
922 | { |
923 | unsigned int n; | |
924 | ||
925 | /* Total buffer size should be able to hold about 500ms of data */ | |
dc9dbe94 | 926 | n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc); |
5af666a9 LPC |
927 | |
928 | if (n > NUM_SIMUL_TRANSFERS) | |
929 | return NUM_SIMUL_TRANSFERS; | |
930 | ||
931 | return n; | |
932 | } | |
933 | ||
dc9dbe94 | 934 | static unsigned int get_timeout(struct dev_context *devc) |
5af666a9 LPC |
935 | { |
936 | size_t total_size; | |
937 | unsigned int timeout; | |
938 | ||
dc9dbe94 BV |
939 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); |
940 | timeout = total_size / to_bytes_per_ms(devc->cur_samplerate); | |
5af666a9 LPC |
941 | return timeout + timeout / 4; /* Leave a headroom of 25% percent */ |
942 | } | |
943 | ||
3ffb6964 BV |
944 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
945 | void *cb_data) | |
f302a082 | 946 | { |
bd47acab LPC |
947 | struct sr_datafeed_packet packet; |
948 | struct sr_datafeed_header header; | |
f366e86c | 949 | struct sr_datafeed_meta_logic meta; |
dc9dbe94 BV |
950 | struct drv_context *drvc; |
951 | struct dev_context *devc; | |
610dbb70 JH |
952 | struct libusb_transfer *transfer; |
953 | const struct libusb_pollfd **lupfd; | |
5af666a9 LPC |
954 | unsigned int i; |
955 | int ret; | |
610dbb70 JH |
956 | unsigned char *buf; |
957 | ||
dc9dbe94 BV |
958 | drvc = fdi->priv; |
959 | devc = sdi->priv; | |
960 | if (devc->submitted_transfers != 0) | |
c03f0450 LPC |
961 | return SR_ERR; |
962 | ||
014359e3 BV |
963 | if (configure_probes(sdi) != SR_OK) { |
964 | sr_err("fx2lafw: failed to configured probes"); | |
965 | return SR_ERR; | |
966 | } | |
967 | ||
dc9dbe94 BV |
968 | devc->session_dev_id = cb_data; |
969 | devc->num_samples = 0; | |
970 | devc->empty_transfer_count = 0; | |
610dbb70 | 971 | |
dc9dbe94 BV |
972 | const unsigned int timeout = get_timeout(devc); |
973 | const unsigned int num_transfers = get_number_of_transfers(devc); | |
974 | const size_t size = get_buffer_size(devc); | |
5af666a9 | 975 | |
dc9dbe94 BV |
976 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); |
977 | if (!devc->transfers) | |
0caa1ef0 LPC |
978 | return SR_ERR; |
979 | ||
dc9dbe94 | 980 | devc->num_transfers = num_transfers; |
0caa1ef0 | 981 | |
5af666a9 | 982 | for (i = 0; i < num_transfers; i++) { |
610dbb70 | 983 | if (!(buf = g_try_malloc(size))) { |
7ae2f9d5 | 984 | sr_err("fx2lafw: %s: buf malloc failed.", __func__); |
610dbb70 JH |
985 | return SR_ERR_MALLOC; |
986 | } | |
987 | transfer = libusb_alloc_transfer(0); | |
dc9dbe94 | 988 | libusb_fill_bulk_transfer(transfer, devc->usb->devhdl, |
610dbb70 | 989 | 2 | LIBUSB_ENDPOINT_IN, buf, size, |
dc9dbe94 | 990 | receive_transfer, devc, timeout); |
610dbb70 | 991 | if (libusb_submit_transfer(transfer) != 0) { |
610dbb70 JH |
992 | libusb_free_transfer(transfer); |
993 | g_free(buf); | |
dc9dbe94 | 994 | abort_acquisition(devc); |
610dbb70 JH |
995 | return SR_ERR; |
996 | } | |
dc9dbe94 BV |
997 | devc->transfers[i] = transfer; |
998 | devc->submitted_transfers++; | |
610dbb70 JH |
999 | } |
1000 | ||
dc9dbe94 | 1001 | lupfd = libusb_get_pollfds(drvc->usb_context); |
610dbb70 JH |
1002 | for (i = 0; lupfd[i]; i++) |
1003 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, | |
5af666a9 | 1004 | timeout, receive_data, NULL); |
610dbb70 JH |
1005 | free(lupfd); /* NOT g_free()! */ |
1006 | ||
bd47acab LPC |
1007 | packet.type = SR_DF_HEADER; |
1008 | packet.payload = &header; | |
1009 | header.feed_version = 1; | |
1010 | gettimeofday(&header.starttime, NULL); | |
1011 | sr_session_send(cb_data, &packet); | |
f366e86c BV |
1012 | |
1013 | /* Send metadata about the SR_DF_LOGIC packets to come. */ | |
bd47acab LPC |
1014 | packet.type = SR_DF_META_LOGIC; |
1015 | packet.payload = &meta; | |
dc9dbe94 BV |
1016 | meta.samplerate = devc->cur_samplerate; |
1017 | meta.num_probes = devc->sample_wide ? 16 : 8; | |
bd47acab | 1018 | sr_session_send(cb_data, &packet); |
610dbb70 | 1019 | |
dc9dbe94 BV |
1020 | if ((ret = command_start_acquisition (devc->usb->devhdl, |
1021 | devc->cur_samplerate, devc->sample_wide)) != SR_OK) { | |
1022 | abort_acquisition(devc); | |
ebc34738 | 1023 | return ret; |
017375d1 JH |
1024 | } |
1025 | ||
f302a082 JH |
1026 | return SR_OK; |
1027 | } | |
1028 | ||
3cd3a20b | 1029 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ |
3ffb6964 BV |
1030 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
1031 | void *cb_data) | |
f302a082 | 1032 | { |
5da93902 | 1033 | |
f4a9e5c0 | 1034 | /* Avoid compiler warnings. */ |
2e526f4a | 1035 | (void)cb_data; |
5da93902 | 1036 | |
2e526f4a | 1037 | abort_acquisition(sdi->priv); |
5da93902 | 1038 | |
f302a082 JH |
1039 | return SR_OK; |
1040 | } | |
1041 | ||
c09f0b57 | 1042 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { |
f302a082 | 1043 | .name = "fx2lafw", |
2e7cb004 | 1044 | .longname = "fx2lafw (generic driver for FX2 based LAs)", |
f302a082 JH |
1045 | .api_version = 1, |
1046 | .init = hw_init, | |
1047 | .cleanup = hw_cleanup, | |
61136ea6 | 1048 | .scan = hw_scan, |
f302a082 JH |
1049 | .dev_open = hw_dev_open, |
1050 | .dev_close = hw_dev_close, | |
6e9339aa | 1051 | .info_get = hw_info_get, |
f302a082 JH |
1052 | .dev_config_set = hw_dev_config_set, |
1053 | .dev_acquisition_start = hw_dev_acquisition_start, | |
1054 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
dc9dbe94 | 1055 | .priv = NULL, |
f302a082 | 1056 | }; |