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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> |
45c59c8b BV |
26 | #include "libsigrok.h" |
27 | #include "libsigrok-internal.h" | |
f302a082 | 28 | #include "fx2lafw.h" |
f6582cd7 | 29 | #include "command.h" |
f302a082 | 30 | |
4679d14d | 31 | static const struct fx2lafw_profile supported_fx2[] = { |
7ae2f9d5 UH |
32 | /* |
33 | * CWAV USBee AX | |
17b6c75a | 34 | * EE Electronics ESLA201A |
9f05304e | 35 | * ARMFLY AX-Pro |
17b6c75a | 36 | */ |
f8b07fc6 | 37 | { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, |
d1ddc7a9 JH |
38 | FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", |
39 | 0 }, | |
0e8d0e24 IF |
40 | /* |
41 | * CWAV USBee DX | |
42 | * XZL-Studio DX | |
43 | */ | |
44 | { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL, | |
45 | FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw", | |
46 | DEV_CAPS_16BIT }, | |
93a9f3da | 47 | |
7ae2f9d5 UH |
48 | /* |
49 | * CWAV USBee SX | |
4502e869 JH |
50 | */ |
51 | { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, | |
d1ddc7a9 JH |
52 | FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", |
53 | 0 }, | |
4502e869 | 54 | |
7ae2f9d5 UH |
55 | /* |
56 | * Saleae Logic | |
93a9f3da JH |
57 | * EE Electronics ESLA100 |
58 | * Robomotic MiniLogic | |
1663e470 | 59 | * Robomotic BugLogic 3 |
93a9f3da JH |
60 | */ |
61 | { 0x0925, 0x3881, "Saleae", "Logic", NULL, | |
d1ddc7a9 JH |
62 | FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", |
63 | 0 }, | |
93a9f3da | 64 | |
f488762a | 65 | /* |
1663e470 UH |
66 | * Default Cypress FX2 without EEPROM, e.g.: |
67 | * Lcsoft Mini Board | |
68 | * Braintechnology USB Interface V2.x | |
f488762a JH |
69 | */ |
70 | { 0x04B4, 0x8613, "Cypress", "FX2", NULL, | |
d1ddc7a9 JH |
71 | FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw", |
72 | DEV_CAPS_16BIT }, | |
f488762a | 73 | |
1663e470 UH |
74 | /* |
75 | * Braintechnology USB-LPS | |
76 | */ | |
77 | { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL, | |
d1ddc7a9 JH |
78 | FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw", |
79 | DEV_CAPS_16BIT }, | |
1663e470 | 80 | |
f8b07fc6 | 81 | { 0, 0, 0, 0, 0, 0, 0 } |
187b3582 JH |
82 | }; |
83 | ||
915f7cc8 | 84 | static const int hwcaps[] = { |
1953564a BV |
85 | SR_CONF_LOGIC_ANALYZER, |
86 | SR_CONF_SAMPLERATE, | |
8b35f474 JH |
87 | |
88 | /* These are really implemented in the driver, not the hardware. */ | |
1953564a BV |
89 | SR_CONF_LIMIT_SAMPLES, |
90 | SR_CONF_CONTINUOUS, | |
772a0e61 | 91 | 0, |
8b35f474 JH |
92 | }; |
93 | ||
da686568 | 94 | static const char *probe_names[] = { |
b36e7153 | 95 | "0", "1", "2", "3", "4", "5", "6", "7", |
78693401 UH |
96 | "8", "9", "10", "11", "12", "13", "14", "15", |
97 | NULL, | |
8b35f474 JH |
98 | }; |
99 | ||
a533743d | 100 | static const uint64_t supported_samplerates[] = { |
79dc6498 JH |
101 | SR_KHZ(20), |
102 | SR_KHZ(25), | |
897c1a2e JH |
103 | SR_KHZ(50), |
104 | SR_KHZ(100), | |
9304d576 JH |
105 | SR_KHZ(200), |
106 | SR_KHZ(250), | |
107 | SR_KHZ(500), | |
8b35f474 JH |
108 | SR_MHZ(1), |
109 | SR_MHZ(2), | |
110 | SR_MHZ(3), | |
111 | SR_MHZ(4), | |
112 | SR_MHZ(6), | |
113 | SR_MHZ(8), | |
114 | SR_MHZ(12), | |
115 | SR_MHZ(16), | |
772a0e61 | 116 | SR_MHZ(24), |
934cde02 | 117 | 0, |
8b35f474 JH |
118 | }; |
119 | ||
a533743d | 120 | static const struct sr_samplerates samplerates = { |
590b9f9a UH |
121 | 0, |
122 | 0, | |
123 | 0, | |
124 | supported_samplerates, | |
8b35f474 JH |
125 | }; |
126 | ||
a8cc8e44 | 127 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info; |
a873c594 | 128 | static struct sr_dev_driver *di = &fx2lafw_driver_info; |
25a0f108 | 129 | static int hw_dev_close(struct sr_dev_inst *sdi); |
035a1078 | 130 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi); |
69b07d14 | 131 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
610dbb70 | 132 | |
b1eeb67e JH |
133 | /** |
134 | * Check the USB configuration to determine if this is an fx2lafw device. | |
135 | * | |
f9a69557 UH |
136 | * @return TRUE if the device's configuration profile match fx2lafw |
137 | * configuration, FALSE otherwise. | |
b1eeb67e | 138 | */ |
f9a69557 | 139 | static gboolean check_conf_profile(libusb_device *dev) |
b1eeb67e JH |
140 | { |
141 | struct libusb_device_descriptor des; | |
6b73d9a5 BV |
142 | struct libusb_device_handle *hdl; |
143 | gboolean ret; | |
144 | unsigned char strdesc[64]; | |
b1eeb67e | 145 | |
6b73d9a5 BV |
146 | hdl = NULL; |
147 | ret = FALSE; | |
b1eeb67e | 148 | while (!ret) { |
da686568 | 149 | /* Assume the FW has not been loaded, unless proven wrong. */ |
b1eeb67e JH |
150 | if (libusb_get_device_descriptor(dev, &des) != 0) |
151 | break; | |
152 | ||
6b73d9a5 | 153 | if (libusb_open(dev, &hdl) != 0) |
b1eeb67e JH |
154 | break; |
155 | ||
6b73d9a5 | 156 | if (libusb_get_string_descriptor_ascii(hdl, |
b99457f0 | 157 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) |
b1eeb67e | 158 | break; |
6b73d9a5 | 159 | if (strncmp((const char *)strdesc, "sigrok", 6)) |
b1eeb67e JH |
160 | break; |
161 | ||
6b73d9a5 BV |
162 | if (libusb_get_string_descriptor_ascii(hdl, |
163 | des.iProduct, strdesc, sizeof(strdesc)) < 0) | |
b1eeb67e | 164 | break; |
6b73d9a5 | 165 | if (strncmp((const char *)strdesc, "fx2lafw", 7)) |
b1eeb67e JH |
166 | break; |
167 | ||
b1eeb67e | 168 | /* If we made it here, it must be an fx2lafw. */ |
f9a69557 | 169 | ret = TRUE; |
b1eeb67e | 170 | } |
6b73d9a5 BV |
171 | if (hdl) |
172 | libusb_close(hdl); | |
b1eeb67e JH |
173 | |
174 | return ret; | |
175 | } | |
176 | ||
25a0f108 | 177 | static int fx2lafw_dev_open(struct sr_dev_inst *sdi) |
43125c69 JH |
178 | { |
179 | libusb_device **devlist; | |
180 | struct libusb_device_descriptor des; | |
dc9dbe94 | 181 | struct dev_context *devc; |
b99457f0 | 182 | struct drv_context *drvc; |
13bf7ecc | 183 | struct version_info vi; |
b99457f0 | 184 | int ret, skip, i, device_count; |
1e94408a | 185 | uint8_t revid; |
43125c69 | 186 | |
b99457f0 | 187 | drvc = di->priv; |
dc9dbe94 | 188 | devc = sdi->priv; |
43125c69 JH |
189 | |
190 | if (sdi->status == SR_ST_ACTIVE) | |
b99457f0 | 191 | /* Device is already in use. */ |
43125c69 JH |
192 | return SR_ERR; |
193 | ||
194 | skip = 0; | |
b99457f0 | 195 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
6fbe5e60 | 196 | if (device_count < 0) { |
b99457f0 UH |
197 | sr_err("Failed to get device list: %s.", |
198 | libusb_error_name(device_count)); | |
6fbe5e60 JH |
199 | return SR_ERR; |
200 | } | |
201 | ||
202 | for (i = 0; i < device_count; i++) { | |
ebc34738 | 203 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
f427daef | 204 | sr_err("Failed to get device descriptor: %s.", |
d4928d71 | 205 | libusb_error_name(ret)); |
43125c69 JH |
206 | continue; |
207 | } | |
208 | ||
dc9dbe94 BV |
209 | if (des.idVendor != devc->profile->vid |
210 | || des.idProduct != devc->profile->pid) | |
43125c69 JH |
211 | continue; |
212 | ||
213 | if (sdi->status == SR_ST_INITIALIZING) { | |
25a0f108 | 214 | if (skip != sdi->index) { |
43125c69 JH |
215 | /* Skip devices of this type that aren't the one we want. */ |
216 | skip += 1; | |
217 | continue; | |
218 | } | |
219 | } else if (sdi->status == SR_ST_INACTIVE) { | |
220 | /* | |
221 | * This device is fully enumerated, so we need to find | |
222 | * this device by vendor, product, bus and address. | |
223 | */ | |
dc9dbe94 BV |
224 | if (libusb_get_bus_number(devlist[i]) != devc->usb->bus |
225 | || libusb_get_device_address(devlist[i]) != devc->usb->address) | |
b99457f0 | 226 | /* This is not the one. */ |
43125c69 JH |
227 | continue; |
228 | } | |
229 | ||
dc9dbe94 BV |
230 | if (!(ret = libusb_open(devlist[i], &devc->usb->devhdl))) { |
231 | if (devc->usb->address == 0xff) | |
43125c69 | 232 | /* |
b99457f0 UH |
233 | * First time we touch this device after FW |
234 | * upload, so we don't know the address yet. | |
43125c69 | 235 | */ |
dc9dbe94 | 236 | devc->usb->address = libusb_get_device_address(devlist[i]); |
43125c69 | 237 | } else { |
f427daef | 238 | sr_err("Failed to open device: %s.", |
d4928d71 | 239 | libusb_error_name(ret)); |
13bf7ecc JH |
240 | break; |
241 | } | |
242 | ||
dc9dbe94 | 243 | ret = command_get_fw_version(devc->usb->devhdl, &vi); |
44dfd483 | 244 | if (ret != SR_OK) { |
b99457f0 | 245 | sr_err("Failed to get firmware version."); |
13bf7ecc | 246 | break; |
43125c69 JH |
247 | } |
248 | ||
dc9dbe94 | 249 | ret = command_get_revid_version(devc->usb->devhdl, &revid); |
1e94408a | 250 | if (ret != SR_OK) { |
b99457f0 | 251 | sr_err("Failed to get REVID."); |
1e94408a UH |
252 | break; |
253 | } | |
254 | ||
0a8c0c32 UH |
255 | /* |
256 | * Changes in major version mean incompatible/API changes, so | |
257 | * bail out if we encounter an incompatible version. | |
258 | * Different minor versions are OK, they should be compatible. | |
259 | */ | |
260 | if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) { | |
f427daef | 261 | sr_err("Expected firmware version %d.x, " |
0a8c0c32 UH |
262 | "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR, |
263 | vi.major, vi.minor); | |
13bf7ecc JH |
264 | break; |
265 | } | |
266 | ||
267 | sdi->status = SR_ST_ACTIVE; | |
b99457f0 | 268 | sr_info("Opened device %d on %d.%d, " |
cbc80f8f | 269 | "interface %d, firmware %d.%d.", |
dc9dbe94 | 270 | sdi->index, devc->usb->bus, devc->usb->address, |
cbc80f8f AG |
271 | USB_INTERFACE, vi.major, vi.minor); |
272 | ||
273 | sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.", | |
274 | revid, (revid != 1) ? " (FX2)" : "A (FX2LP)"); | |
13bf7ecc | 275 | |
43125c69 JH |
276 | break; |
277 | } | |
278 | libusb_free_device_list(devlist, 1); | |
279 | ||
280 | if (sdi->status != SR_ST_ACTIVE) | |
281 | return SR_ERR; | |
282 | ||
283 | return SR_OK; | |
284 | } | |
285 | ||
014359e3 | 286 | static int configure_probes(const struct sr_dev_inst *sdi) |
6c6781b6 | 287 | { |
014359e3 | 288 | struct dev_context *devc; |
6c6781b6 JH |
289 | struct sr_probe *probe; |
290 | GSList *l; | |
291 | int probe_bit, stage, i; | |
292 | char *tc; | |
293 | ||
014359e3 | 294 | devc = sdi->priv; |
6c6781b6 | 295 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
dc9dbe94 BV |
296 | devc->trigger_mask[i] = 0; |
297 | devc->trigger_value[i] = 0; | |
6c6781b6 JH |
298 | } |
299 | ||
300 | stage = -1; | |
014359e3 | 301 | for (l = sdi->probes; l; l = l->next) { |
6c6781b6 JH |
302 | probe = (struct sr_probe *)l->data; |
303 | if (probe->enabled == FALSE) | |
304 | continue; | |
d1ddc7a9 | 305 | |
b35c8293 | 306 | if (probe->index > 7) |
dc9dbe94 | 307 | devc->sample_wide = TRUE; |
d1ddc7a9 | 308 | |
b35c8293 | 309 | probe_bit = 1 << (probe->index); |
6c6781b6 JH |
310 | if (!(probe->trigger)) |
311 | continue; | |
312 | ||
313 | stage = 0; | |
314 | for (tc = probe->trigger; *tc; tc++) { | |
dc9dbe94 | 315 | devc->trigger_mask[stage] |= probe_bit; |
6c6781b6 | 316 | if (*tc == '1') |
dc9dbe94 | 317 | devc->trigger_value[stage] |= probe_bit; |
6c6781b6 JH |
318 | stage++; |
319 | if (stage > NUM_TRIGGER_STAGES) | |
320 | return SR_ERR; | |
321 | } | |
322 | } | |
323 | ||
324 | if (stage == -1) | |
325 | /* | |
326 | * We didn't configure any triggers, make sure acquisition | |
327 | * doesn't wait for any. | |
328 | */ | |
dc9dbe94 | 329 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 330 | else |
dc9dbe94 | 331 | devc->trigger_stage = 0; |
6c6781b6 JH |
332 | |
333 | return SR_OK; | |
334 | } | |
335 | ||
dc9dbe94 | 336 | static struct dev_context *fx2lafw_dev_new(void) |
187b3582 | 337 | { |
dc9dbe94 | 338 | struct dev_context *devc; |
187b3582 | 339 | |
dc9dbe94 | 340 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
b99457f0 | 341 | sr_err("Device context malloc failed."); |
187b3582 JH |
342 | return NULL; |
343 | } | |
344 | ||
dc9dbe94 | 345 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 346 | |
dc9dbe94 | 347 | return devc; |
187b3582 | 348 | } |
f302a082 | 349 | |
f69b47f0 BV |
350 | static int clear_instances(void) |
351 | { | |
352 | GSList *l; | |
353 | struct sr_dev_inst *sdi; | |
dc9dbe94 BV |
354 | struct drv_context *drvc; |
355 | struct dev_context *devc; | |
f69b47f0 BV |
356 | int ret; |
357 | ||
a873c594 | 358 | drvc = di->priv; |
f69b47f0 | 359 | ret = SR_OK; |
dc9dbe94 | 360 | for (l = drvc->instances; l; l = l->next) { |
f69b47f0 BV |
361 | if (!(sdi = l->data)) { |
362 | /* Log error, but continue cleaning up the rest. */ | |
b99457f0 | 363 | sr_err("sdi was NULL, continuing."); |
f69b47f0 BV |
364 | ret = SR_ERR_BUG; |
365 | continue; | |
366 | } | |
dc9dbe94 | 367 | if (!(devc = sdi->priv)) { |
f69b47f0 | 368 | /* Log error, but continue cleaning up the rest. */ |
b99457f0 | 369 | sr_err("sdi->priv was NULL, continuing."); |
f69b47f0 BV |
370 | ret = SR_ERR_BUG; |
371 | continue; | |
372 | } | |
25a0f108 | 373 | hw_dev_close(sdi); |
fabe59b3 | 374 | sr_usb_dev_inst_free(devc->usb); |
f69b47f0 BV |
375 | sdi = l->data; |
376 | sr_dev_inst_free(sdi); | |
377 | } | |
378 | ||
dc9dbe94 BV |
379 | g_slist_free(drvc->instances); |
380 | drvc->instances = NULL; | |
f69b47f0 BV |
381 | |
382 | return ret; | |
383 | } | |
384 | ||
34f06b90 | 385 | static int hw_init(struct sr_context *sr_ctx) |
61136ea6 | 386 | { |
dc9dbe94 BV |
387 | struct drv_context *drvc; |
388 | ||
389 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
f427daef | 390 | sr_err("Driver context malloc failed."); |
886a52b6 | 391 | return SR_ERR_MALLOC; |
dc9dbe94 | 392 | } |
61136ea6 | 393 | |
1ebe4b4e | 394 | drvc->sr_ctx = sr_ctx; |
a873c594 | 395 | di->priv = drvc; |
dc9dbe94 | 396 | |
61136ea6 BV |
397 | return SR_OK; |
398 | } | |
399 | ||
3a7a22cb | 400 | static GSList *hw_scan(GSList *options) |
f302a082 | 401 | { |
3a7a22cb | 402 | GSList *devices; |
187b3582 | 403 | struct libusb_device_descriptor des; |
3a7a22cb | 404 | struct sr_dev_inst *sdi; |
da686568 | 405 | const struct fx2lafw_profile *prof; |
dc9dbe94 BV |
406 | struct drv_context *drvc; |
407 | struct dev_context *devc; | |
3a7a22cb | 408 | struct sr_probe *probe; |
187b3582 | 409 | libusb_device **devlist; |
3a7a22cb BV |
410 | int devcnt, num_logic_probes, ret, i, j; |
411 | ||
3a7a22cb | 412 | (void)options; |
64d33dc2 | 413 | |
a873c594 | 414 | drvc = di->priv; |
187b3582 | 415 | |
f69b47f0 BV |
416 | /* This scan always invalidates any previous scans. */ |
417 | clear_instances(); | |
418 | ||
921634ec | 419 | /* Find all fx2lafw compatible devices and upload firmware to them. */ |
3a7a22cb | 420 | devices = NULL; |
d4abb463 | 421 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
187b3582 JH |
422 | for (i = 0; devlist[i]; i++) { |
423 | ||
ebc34738 | 424 | if ((ret = libusb_get_device_descriptor( |
7ae2f9d5 | 425 | devlist[i], &des)) != 0) { |
f427daef | 426 | sr_warn("Failed to get device descriptor: %s.", |
d4928d71 | 427 | libusb_error_name(ret)); |
187b3582 JH |
428 | continue; |
429 | } | |
430 | ||
da686568 | 431 | prof = NULL; |
187b3582 JH |
432 | for (j = 0; supported_fx2[j].vid; j++) { |
433 | if (des.idVendor == supported_fx2[j].vid && | |
434 | des.idProduct == supported_fx2[j].pid) { | |
da686568 | 435 | prof = &supported_fx2[j]; |
187b3582 JH |
436 | } |
437 | } | |
438 | ||
b99457f0 | 439 | /* Skip if the device was not found. */ |
da686568 | 440 | if (!prof) |
187b3582 JH |
441 | continue; |
442 | ||
dc9dbe94 | 443 | devcnt = g_slist_length(drvc->instances); |
187b3582 | 444 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, |
da686568 | 445 | prof->vendor, prof->model, prof->model_version); |
f4a9e5c0 | 446 | if (!sdi) |
25a0f108 | 447 | return NULL; |
a873c594 | 448 | sdi->driver = di; |
187b3582 | 449 | |
06717a8a BV |
450 | /* Fill in probelist according to this device's profile. */ |
451 | num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; | |
c5e82ca5 | 452 | for (j = 0; j < num_logic_probes; j++) { |
06717a8a BV |
453 | if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE, |
454 | probe_names[j]))) | |
25a0f108 | 455 | return NULL; |
06717a8a BV |
456 | sdi->probes = g_slist_append(sdi->probes, probe); |
457 | } | |
458 | ||
dc9dbe94 BV |
459 | devc = fx2lafw_dev_new(); |
460 | devc->profile = prof; | |
461 | sdi->priv = devc; | |
462 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
a8cc8e44 | 463 | devices = g_slist_append(devices, sdi); |
187b3582 | 464 | |
b1eeb67e JH |
465 | if (check_conf_profile(devlist[i])) { |
466 | /* Already has the firmware, so fix the new address. */ | |
f427daef | 467 | sr_dbg("Found an fx2lafw device."); |
b1eeb67e | 468 | sdi->status = SR_ST_INACTIVE; |
dc9dbe94 | 469 | devc->usb = sr_usb_dev_inst_new |
b1eeb67e JH |
470 | (libusb_get_bus_number(devlist[i]), |
471 | libusb_get_device_address(devlist[i]), NULL); | |
472 | } else { | |
f8b07fc6 | 473 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
da686568 | 474 | prof->firmware) == SR_OK) |
b99457f0 | 475 | /* Store when this device's FW was updated. */ |
dc9dbe94 | 476 | devc->fw_updated = g_get_monotonic_time(); |
b1eeb67e | 477 | else |
f427daef | 478 | sr_err("Firmware upload failed for " |
7ae2f9d5 | 479 | "device %d.", devcnt); |
dc9dbe94 | 480 | devc->usb = sr_usb_dev_inst_new |
b1eeb67e JH |
481 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); |
482 | } | |
187b3582 JH |
483 | } |
484 | libusb_free_device_list(devlist, 1); | |
485 | ||
3a7a22cb | 486 | return devices; |
f302a082 JH |
487 | } |
488 | ||
811deee4 BV |
489 | static GSList *hw_dev_list(void) |
490 | { | |
491 | struct drv_context *drvc; | |
492 | ||
a873c594 | 493 | drvc = di->priv; |
811deee4 BV |
494 | |
495 | return drvc->instances; | |
496 | } | |
497 | ||
25a0f108 | 498 | static int hw_dev_open(struct sr_dev_inst *sdi) |
f302a082 | 499 | { |
dc9dbe94 | 500 | struct dev_context *devc; |
e8bd58ff UH |
501 | int ret; |
502 | int64_t timediff_us, timediff_ms; | |
43125c69 | 503 | |
dc9dbe94 | 504 | devc = sdi->priv; |
43125c69 JH |
505 | |
506 | /* | |
f60fdf6e UH |
507 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
508 | * milliseconds for the FX2 to renumerate. | |
43125c69 | 509 | */ |
3b6c1930 | 510 | ret = SR_ERR; |
dc9dbe94 | 511 | if (devc->fw_updated > 0) { |
f427daef | 512 | sr_info("Waiting for device to reset."); |
b99457f0 | 513 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ |
43125c69 | 514 | g_usleep(300 * 1000); |
e8bd58ff | 515 | timediff_ms = 0; |
f60fdf6e | 516 | while (timediff_ms < MAX_RENUM_DELAY_MS) { |
25a0f108 | 517 | if ((ret = fx2lafw_dev_open(sdi)) == SR_OK) |
43125c69 JH |
518 | break; |
519 | g_usleep(100 * 1000); | |
e8bd58ff | 520 | |
dc9dbe94 | 521 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
3b6c1930 | 522 | timediff_ms = timediff_us / 1000; |
b99457f0 | 523 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); |
43125c69 | 524 | } |
443a14d8 AG |
525 | if (ret != SR_OK) { |
526 | sr_err("Device failed to renumerate."); | |
527 | return SR_ERR; | |
528 | } | |
c0bf69c2 | 529 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); |
43125c69 | 530 | } else { |
443a14d8 | 531 | sr_info("Firmware upload was not needed."); |
25a0f108 | 532 | ret = fx2lafw_dev_open(sdi); |
43125c69 JH |
533 | } |
534 | ||
ebc34738 | 535 | if (ret != SR_OK) { |
f427daef | 536 | sr_err("Unable to open device."); |
43125c69 JH |
537 | return SR_ERR; |
538 | } | |
378abfea | 539 | |
dc9dbe94 | 540 | devc = sdi->priv; |
43125c69 | 541 | |
dc9dbe94 | 542 | ret = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
ebc34738 | 543 | if (ret != 0) { |
0c156e06 JH |
544 | switch(ret) { |
545 | case LIBUSB_ERROR_BUSY: | |
f427daef | 546 | sr_err("Unable to claim USB interface. Another " |
b99457f0 | 547 | "program or driver has already claimed it."); |
0c156e06 | 548 | break; |
0c156e06 | 549 | case LIBUSB_ERROR_NO_DEVICE: |
f427daef | 550 | sr_err("Device has been disconnected."); |
0c156e06 | 551 | break; |
0c156e06 | 552 | default: |
f427daef | 553 | sr_err("Unable to claim interface: %s.", |
d4928d71 | 554 | libusb_error_name(ret)); |
0c156e06 JH |
555 | break; |
556 | } | |
557 | ||
43125c69 JH |
558 | return SR_ERR; |
559 | } | |
560 | ||
dc9dbe94 | 561 | if (devc->cur_samplerate == 0) { |
f92994fd | 562 | /* Samplerate hasn't been set; default to the slowest one. */ |
035a1078 BV |
563 | if (config_set(SR_CONF_SAMPLERATE, &supported_samplerates[0], |
564 | sdi) == SR_ERR) | |
f92994fd JH |
565 | return SR_ERR; |
566 | } | |
567 | ||
f302a082 JH |
568 | return SR_OK; |
569 | } | |
570 | ||
25a0f108 | 571 | static int hw_dev_close(struct sr_dev_inst *sdi) |
f302a082 | 572 | { |
dc9dbe94 | 573 | struct dev_context *devc; |
f1898235 | 574 | |
dc9dbe94 BV |
575 | devc = sdi->priv; |
576 | if (devc->usb->devhdl == NULL) | |
25a0f108 | 577 | return SR_ERR; |
f1898235 | 578 | |
b99457f0 | 579 | sr_info("Closing device %d on %d.%d, interface %d.", |
dc9dbe94 BV |
580 | sdi->index, devc->usb->bus, devc->usb->address, USB_INTERFACE); |
581 | libusb_release_interface(devc->usb->devhdl, USB_INTERFACE); | |
582 | libusb_close(devc->usb->devhdl); | |
583 | devc->usb->devhdl = NULL; | |
25a0f108 | 584 | sdi->status = SR_ST_INACTIVE; |
f1898235 | 585 | |
f302a082 JH |
586 | return SR_OK; |
587 | } | |
588 | ||
589 | static int hw_cleanup(void) | |
590 | { | |
dc9dbe94 | 591 | struct drv_context *drvc; |
f69b47f0 | 592 | int ret; |
187b3582 | 593 | |
a873c594 | 594 | if (!(drvc = di->priv)) |
dc9dbe94 BV |
595 | return SR_OK; |
596 | ||
f69b47f0 | 597 | ret = clear_instances(); |
187b3582 | 598 | |
dc9dbe94 | 599 | g_free(drvc); |
a873c594 | 600 | di->priv = NULL; |
187b3582 | 601 | |
62bc70e4 | 602 | return ret; |
f302a082 JH |
603 | } |
604 | ||
035a1078 | 605 | static int config_get(int id, const void **data, const struct sr_dev_inst *sdi) |
f302a082 | 606 | { |
dc9dbe94 | 607 | struct dev_context *devc; |
8b35f474 | 608 | |
035a1078 | 609 | switch (id) { |
a27999e6 BV |
610 | case SR_DI_HWCAPS: |
611 | *data = hwcaps; | |
612 | break; | |
8b35f474 | 613 | case SR_DI_SAMPLERATES: |
6e9339aa BV |
614 | *data = &samplerates; |
615 | break; | |
8b35f474 | 616 | case SR_DI_TRIGGER_TYPES: |
6e9339aa BV |
617 | *data = TRIGGER_TYPES; |
618 | break; | |
e3186647 | 619 | case SR_DI_CUR_SAMPLERATE: |
6e9339aa | 620 | if (sdi) { |
dc9dbe94 BV |
621 | devc = sdi->priv; |
622 | *data = &devc->cur_samplerate; | |
6e9339aa BV |
623 | } else |
624 | return SR_ERR; | |
625 | break; | |
626 | default: | |
627 | return SR_ERR_ARG; | |
8b35f474 JH |
628 | } |
629 | ||
6e9339aa | 630 | return SR_OK; |
f302a082 JH |
631 | } |
632 | ||
035a1078 | 633 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
f302a082 | 634 | { |
dc9dbe94 | 635 | struct dev_context *devc; |
7cb621d4 JH |
636 | int ret; |
637 | ||
dc9dbe94 | 638 | devc = sdi->priv; |
7cb621d4 | 639 | |
035a1078 | 640 | if (id == SR_CONF_SAMPLERATE) { |
dc9dbe94 | 641 | devc->cur_samplerate = *(const uint64_t *)value; |
e3186647 | 642 | ret = SR_OK; |
035a1078 | 643 | } else if (id == SR_CONF_LIMIT_SAMPLES) { |
dc9dbe94 | 644 | devc->limit_samples = *(const uint64_t *)value; |
7cb621d4 JH |
645 | ret = SR_OK; |
646 | } else { | |
647 | ret = SR_ERR; | |
648 | } | |
649 | ||
650 | return ret; | |
f302a082 JH |
651 | } |
652 | ||
1f9813eb | 653 | static int receive_data(int fd, int revents, void *cb_data) |
610dbb70 JH |
654 | { |
655 | struct timeval tv; | |
b99457f0 | 656 | struct drv_context *drvc; |
610dbb70 | 657 | |
610dbb70 JH |
658 | (void)fd; |
659 | (void)revents; | |
1f9813eb | 660 | (void)cb_data; |
610dbb70 | 661 | |
b99457f0 UH |
662 | drvc = di->priv; |
663 | ||
610dbb70 | 664 | tv.tv_sec = tv.tv_usec = 0; |
d4abb463 | 665 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
610dbb70 JH |
666 | |
667 | return TRUE; | |
668 | } | |
669 | ||
dc9dbe94 | 670 | static void abort_acquisition(struct dev_context *devc) |
cb61e9f7 | 671 | { |
e7d087bf | 672 | int i; |
0caa1ef0 | 673 | |
dc9dbe94 | 674 | devc->num_samples = -1; |
0caa1ef0 | 675 | |
dc9dbe94 BV |
676 | for (i = devc->num_transfers - 1; i >= 0; i--) { |
677 | if (devc->transfers[i]) | |
678 | libusb_cancel_transfer(devc->transfers[i]); | |
0caa1ef0 | 679 | } |
cb61e9f7 JH |
680 | } |
681 | ||
dc9dbe94 | 682 | static void finish_acquisition(struct dev_context *devc) |
2e526f4a JH |
683 | { |
684 | struct sr_datafeed_packet packet; | |
a873c594 | 685 | struct drv_context *drvc = di->priv; |
b99457f0 | 686 | const struct libusb_pollfd **lupfd; |
cb61e9f7 | 687 | int i; |
2e526f4a | 688 | |
b99457f0 | 689 | /* Terminate session. */ |
2e526f4a | 690 | packet.type = SR_DF_END; |
dc9dbe94 | 691 | sr_session_send(devc->session_dev_id, &packet); |
2e526f4a | 692 | |
b99457f0 UH |
693 | /* Remove fds from polling. */ |
694 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); | |
cb61e9f7 JH |
695 | for (i = 0; lupfd[i]; i++) |
696 | sr_source_remove(lupfd[i]->fd); | |
697 | free(lupfd); /* NOT g_free()! */ | |
0caa1ef0 | 698 | |
dc9dbe94 BV |
699 | devc->num_transfers = 0; |
700 | g_free(devc->transfers); | |
2e526f4a JH |
701 | } |
702 | ||
f855de75 LPC |
703 | static void free_transfer(struct libusb_transfer *transfer) |
704 | { | |
b99457f0 | 705 | struct dev_context *devc; |
0caa1ef0 | 706 | unsigned int i; |
f855de75 | 707 | |
b99457f0 UH |
708 | devc = transfer->user_data; |
709 | ||
f855de75 LPC |
710 | g_free(transfer->buffer); |
711 | transfer->buffer = NULL; | |
712 | libusb_free_transfer(transfer); | |
713 | ||
dc9dbe94 BV |
714 | for (i = 0; i < devc->num_transfers; i++) { |
715 | if (devc->transfers[i] == transfer) { | |
716 | devc->transfers[i] = NULL; | |
0caa1ef0 LPC |
717 | break; |
718 | } | |
719 | } | |
720 | ||
dc9dbe94 BV |
721 | devc->submitted_transfers--; |
722 | if (devc->submitted_transfers == 0) | |
723 | finish_acquisition(devc); | |
f855de75 LPC |
724 | } |
725 | ||
17dff8a1 LPC |
726 | static void resubmit_transfer(struct libusb_transfer *transfer) |
727 | { | |
b99457f0 | 728 | int ret; |
d4928d71 | 729 | |
b99457f0 | 730 | if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS) |
d4928d71 PS |
731 | return; |
732 | ||
733 | free_transfer(transfer); | |
734 | /* TODO: Stop session? */ | |
735 | ||
f427daef | 736 | sr_err("%s: %s", __func__, libusb_error_name(ret)); |
17dff8a1 LPC |
737 | } |
738 | ||
610dbb70 JH |
739 | static void receive_transfer(struct libusb_transfer *transfer) |
740 | { | |
7ce737a7 | 741 | gboolean packet_has_error = FALSE; |
610dbb70 JH |
742 | struct sr_datafeed_packet packet; |
743 | struct sr_datafeed_logic logic; | |
b99457f0 UH |
744 | struct dev_context *devc; |
745 | int trigger_offset, i, sample_width, cur_sample_count; | |
746 | int trigger_offset_bytes; | |
747 | uint8_t *cur_buf; | |
748 | ||
749 | devc = transfer->user_data; | |
610dbb70 | 750 | |
610dbb70 JH |
751 | /* |
752 | * If acquisition has already ended, just free any queued up | |
753 | * transfer that come in. | |
754 | */ | |
dc9dbe94 | 755 | if (devc->num_samples == -1) { |
f855de75 | 756 | free_transfer(transfer); |
610dbb70 JH |
757 | return; |
758 | } | |
759 | ||
f427daef | 760 | sr_info("receive_transfer(): status %d received %d bytes.", |
610dbb70 JH |
761 | transfer->status, transfer->actual_length); |
762 | ||
763 | /* Save incoming transfer before reusing the transfer struct. */ | |
b99457f0 UH |
764 | cur_buf = transfer->buffer; |
765 | sample_width = devc->sample_wide ? 2 : 1; | |
766 | cur_sample_count = transfer->actual_length / sample_width; | |
610dbb70 | 767 | |
7ce737a7 LPC |
768 | switch (transfer->status) { |
769 | case LIBUSB_TRANSFER_NO_DEVICE: | |
dc9dbe94 | 770 | abort_acquisition(devc); |
7ce737a7 LPC |
771 | free_transfer(transfer); |
772 | return; | |
773 | case LIBUSB_TRANSFER_COMPLETED: | |
b99457f0 | 774 | case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */ |
7ce737a7 LPC |
775 | break; |
776 | default: | |
777 | packet_has_error = TRUE; | |
778 | break; | |
779 | } | |
780 | ||
781 | if (transfer->actual_length == 0 || packet_has_error) { | |
dc9dbe94 BV |
782 | devc->empty_transfer_count++; |
783 | if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
610dbb70 JH |
784 | /* |
785 | * The FX2 gave up. End the acquisition, the frontend | |
786 | * will work out that the samplecount is short. | |
787 | */ | |
dc9dbe94 | 788 | abort_acquisition(devc); |
17dff8a1 LPC |
789 | free_transfer(transfer); |
790 | } else { | |
791 | resubmit_transfer(transfer); | |
610dbb70 JH |
792 | } |
793 | return; | |
794 | } else { | |
dc9dbe94 | 795 | devc->empty_transfer_count = 0; |
610dbb70 JH |
796 | } |
797 | ||
6c6781b6 | 798 | trigger_offset = 0; |
dc9dbe94 | 799 | if (devc->trigger_stage >= 0) { |
d1ddc7a9 JH |
800 | for (i = 0; i < cur_sample_count; i++) { |
801 | ||
dc9dbe94 | 802 | const uint16_t cur_sample = devc->sample_wide ? |
d1ddc7a9 JH |
803 | *((const uint16_t*)cur_buf + i) : |
804 | *((const uint8_t*)cur_buf + i); | |
6c6781b6 | 805 | |
dc9dbe94 BV |
806 | if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) == |
807 | devc->trigger_value[devc->trigger_stage]) { | |
6c6781b6 | 808 | /* Match on this trigger stage. */ |
dc9dbe94 BV |
809 | devc->trigger_buffer[devc->trigger_stage] = cur_sample; |
810 | devc->trigger_stage++; | |
6c6781b6 | 811 | |
dc9dbe94 BV |
812 | if (devc->trigger_stage == NUM_TRIGGER_STAGES || |
813 | devc->trigger_mask[devc->trigger_stage] == 0) { | |
6c6781b6 JH |
814 | /* Match on all trigger stages, we're done. */ |
815 | trigger_offset = i + 1; | |
816 | ||
817 | /* | |
818 | * TODO: Send pre-trigger buffer to session bus. | |
819 | * Tell the frontend we hit the trigger here. | |
820 | */ | |
821 | packet.type = SR_DF_TRIGGER; | |
822 | packet.payload = NULL; | |
dc9dbe94 | 823 | sr_session_send(devc->session_dev_id, &packet); |
6c6781b6 JH |
824 | |
825 | /* | |
b99457f0 UH |
826 | * Send the samples that triggered it, |
827 | * since we're skipping past them. | |
6c6781b6 JH |
828 | */ |
829 | packet.type = SR_DF_LOGIC; | |
830 | packet.payload = &logic; | |
dc9dbe94 BV |
831 | logic.unitsize = sizeof(*devc->trigger_buffer); |
832 | logic.length = devc->trigger_stage * logic.unitsize; | |
833 | logic.data = devc->trigger_buffer; | |
834 | sr_session_send(devc->session_dev_id, &packet); | |
6c6781b6 | 835 | |
dc9dbe94 | 836 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 JH |
837 | break; |
838 | } | |
dc9dbe94 | 839 | } else if (devc->trigger_stage > 0) { |
f3ab43a8 LPC |
840 | /* |
841 | * We had a match before, but not in the next sample. However, we may | |
842 | * have a match on this stage in the next bit -- trigger on 0001 will | |
843 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
844 | * the next sample from the one that matched originally, which the | |
845 | * counter increment at the end of the loop takes care of. | |
846 | */ | |
dc9dbe94 | 847 | i -= devc->trigger_stage; |
6c6781b6 JH |
848 | if (i < -1) |
849 | i = -1; /* Oops, went back past this buffer. */ | |
850 | /* Reset trigger stage. */ | |
dc9dbe94 | 851 | devc->trigger_stage = 0; |
6c6781b6 JH |
852 | } |
853 | } | |
854 | } | |
610dbb70 | 855 | |
dc9dbe94 | 856 | if (devc->trigger_stage == TRIGGER_FIRED) { |
6c6781b6 | 857 | /* Send the incoming transfer to the session bus. */ |
b99457f0 | 858 | trigger_offset_bytes = trigger_offset * sample_width; |
6c6781b6 JH |
859 | packet.type = SR_DF_LOGIC; |
860 | packet.payload = &logic; | |
d1ddc7a9 JH |
861 | logic.length = transfer->actual_length - trigger_offset_bytes; |
862 | logic.unitsize = sample_width; | |
863 | logic.data = cur_buf + trigger_offset_bytes; | |
dc9dbe94 | 864 | sr_session_send(devc->session_dev_id, &packet); |
6c6781b6 | 865 | |
dc9dbe94 BV |
866 | devc->num_samples += cur_sample_count; |
867 | if (devc->limit_samples && | |
868 | (unsigned int)devc->num_samples > devc->limit_samples) { | |
869 | abort_acquisition(devc); | |
0caa1ef0 LPC |
870 | free_transfer(transfer); |
871 | return; | |
6c6781b6 JH |
872 | } |
873 | } else { | |
874 | /* | |
875 | * TODO: Buffer pre-trigger data in capture | |
876 | * ratio-sized buffer. | |
877 | */ | |
610dbb70 | 878 | } |
17dff8a1 LPC |
879 | |
880 | resubmit_transfer(transfer); | |
610dbb70 JH |
881 | } |
882 | ||
5af666a9 LPC |
883 | static unsigned int to_bytes_per_ms(unsigned int samplerate) |
884 | { | |
885 | return samplerate / 1000; | |
886 | } | |
887 | ||
dc9dbe94 | 888 | static size_t get_buffer_size(struct dev_context *devc) |
5af666a9 LPC |
889 | { |
890 | size_t s; | |
891 | ||
b99457f0 UH |
892 | /* |
893 | * The buffer should be large enough to hold 10ms of data and | |
894 | * a multiple of 512. | |
895 | */ | |
dc9dbe94 | 896 | s = 10 * to_bytes_per_ms(devc->cur_samplerate); |
5af666a9 LPC |
897 | return (s + 511) & ~511; |
898 | } | |
899 | ||
dc9dbe94 | 900 | static unsigned int get_number_of_transfers(struct dev_context *devc) |
5af666a9 LPC |
901 | { |
902 | unsigned int n; | |
903 | ||
b99457f0 | 904 | /* Total buffer size should be able to hold about 500ms of data. */ |
dc9dbe94 | 905 | n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc); |
5af666a9 LPC |
906 | |
907 | if (n > NUM_SIMUL_TRANSFERS) | |
908 | return NUM_SIMUL_TRANSFERS; | |
909 | ||
910 | return n; | |
911 | } | |
912 | ||
dc9dbe94 | 913 | static unsigned int get_timeout(struct dev_context *devc) |
5af666a9 LPC |
914 | { |
915 | size_t total_size; | |
916 | unsigned int timeout; | |
917 | ||
dc9dbe94 BV |
918 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); |
919 | timeout = total_size / to_bytes_per_ms(devc->cur_samplerate); | |
b99457f0 | 920 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ |
5af666a9 LPC |
921 | } |
922 | ||
3ffb6964 BV |
923 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
924 | void *cb_data) | |
f302a082 | 925 | { |
bd47acab LPC |
926 | struct sr_datafeed_packet packet; |
927 | struct sr_datafeed_header header; | |
dc9dbe94 | 928 | struct dev_context *devc; |
b99457f0 | 929 | struct drv_context *drvc; |
610dbb70 JH |
930 | struct libusb_transfer *transfer; |
931 | const struct libusb_pollfd **lupfd; | |
b99457f0 | 932 | unsigned int i, timeout, num_transfers; |
5af666a9 | 933 | int ret; |
610dbb70 | 934 | unsigned char *buf; |
b99457f0 | 935 | size_t size; |
610dbb70 | 936 | |
b99457f0 | 937 | drvc = di->priv; |
dc9dbe94 | 938 | devc = sdi->priv; |
b99457f0 | 939 | |
dc9dbe94 | 940 | if (devc->submitted_transfers != 0) |
c03f0450 LPC |
941 | return SR_ERR; |
942 | ||
014359e3 | 943 | if (configure_probes(sdi) != SR_OK) { |
b99457f0 | 944 | sr_err("Failed to configure probes."); |
014359e3 BV |
945 | return SR_ERR; |
946 | } | |
947 | ||
dc9dbe94 BV |
948 | devc->session_dev_id = cb_data; |
949 | devc->num_samples = 0; | |
950 | devc->empty_transfer_count = 0; | |
610dbb70 | 951 | |
b99457f0 UH |
952 | timeout = get_timeout(devc); |
953 | num_transfers = get_number_of_transfers(devc); | |
954 | size = get_buffer_size(devc); | |
5af666a9 | 955 | |
dc9dbe94 | 956 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); |
886a52b6 | 957 | if (!devc->transfers) { |
f427daef | 958 | sr_err("USB transfers malloc failed."); |
886a52b6 UH |
959 | return SR_ERR_MALLOC; |
960 | } | |
0caa1ef0 | 961 | |
dc9dbe94 | 962 | devc->num_transfers = num_transfers; |
0caa1ef0 | 963 | |
5af666a9 | 964 | for (i = 0; i < num_transfers; i++) { |
610dbb70 | 965 | if (!(buf = g_try_malloc(size))) { |
b99457f0 | 966 | sr_err("USB transfer buffer malloc failed."); |
610dbb70 JH |
967 | return SR_ERR_MALLOC; |
968 | } | |
969 | transfer = libusb_alloc_transfer(0); | |
dc9dbe94 | 970 | libusb_fill_bulk_transfer(transfer, devc->usb->devhdl, |
610dbb70 | 971 | 2 | LIBUSB_ENDPOINT_IN, buf, size, |
dc9dbe94 | 972 | receive_transfer, devc, timeout); |
d4928d71 | 973 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
b99457f0 UH |
974 | sr_err("Failed to submit transfer: %s.", |
975 | libusb_error_name(ret)); | |
610dbb70 JH |
976 | libusb_free_transfer(transfer); |
977 | g_free(buf); | |
dc9dbe94 | 978 | abort_acquisition(devc); |
610dbb70 JH |
979 | return SR_ERR; |
980 | } | |
dc9dbe94 BV |
981 | devc->transfers[i] = transfer; |
982 | devc->submitted_transfers++; | |
610dbb70 JH |
983 | } |
984 | ||
d4abb463 | 985 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
610dbb70 JH |
986 | for (i = 0; lupfd[i]; i++) |
987 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, | |
5af666a9 | 988 | timeout, receive_data, NULL); |
610dbb70 JH |
989 | free(lupfd); /* NOT g_free()! */ |
990 | ||
bd47acab LPC |
991 | packet.type = SR_DF_HEADER; |
992 | packet.payload = &header; | |
993 | header.feed_version = 1; | |
994 | gettimeofday(&header.starttime, NULL); | |
995 | sr_session_send(cb_data, &packet); | |
f366e86c | 996 | |
b99457f0 | 997 | if ((ret = command_start_acquisition(devc->usb->devhdl, |
dc9dbe94 BV |
998 | devc->cur_samplerate, devc->sample_wide)) != SR_OK) { |
999 | abort_acquisition(devc); | |
ebc34738 | 1000 | return ret; |
017375d1 JH |
1001 | } |
1002 | ||
f302a082 JH |
1003 | return SR_OK; |
1004 | } | |
1005 | ||
3cd3a20b | 1006 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ |
69b07d14 | 1007 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
f302a082 | 1008 | { |
2e526f4a | 1009 | (void)cb_data; |
5da93902 | 1010 | |
2e526f4a | 1011 | abort_acquisition(sdi->priv); |
5da93902 | 1012 | |
f302a082 JH |
1013 | return SR_OK; |
1014 | } | |
1015 | ||
c09f0b57 | 1016 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { |
f302a082 | 1017 | .name = "fx2lafw", |
2e7cb004 | 1018 | .longname = "fx2lafw (generic driver for FX2 based LAs)", |
f302a082 JH |
1019 | .api_version = 1, |
1020 | .init = hw_init, | |
1021 | .cleanup = hw_cleanup, | |
61136ea6 | 1022 | .scan = hw_scan, |
811deee4 BV |
1023 | .dev_list = hw_dev_list, |
1024 | .dev_clear = clear_instances, | |
035a1078 BV |
1025 | .config_get = config_get, |
1026 | .config_set = config_set, | |
f302a082 JH |
1027 | .dev_open = hw_dev_open, |
1028 | .dev_close = hw_dev_close, | |
f302a082 JH |
1029 | .dev_acquisition_start = hw_dev_acquisition_start, |
1030 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
dc9dbe94 | 1031 | .priv = NULL, |
f302a082 | 1032 | }; |