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f302a082 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
f302a082 | 3 | * |
13d8e03c | 4 | * Copyright (C) 2013 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 | ||
89befd46 BV |
84 | static const int32_t hwopts[] = { |
85 | SR_CONF_CONN, | |
86 | }; | |
87 | ||
d6836bf1 | 88 | static const int32_t hwcaps[] = { |
1953564a | 89 | SR_CONF_LOGIC_ANALYZER, |
d6836bf1 | 90 | SR_CONF_TRIGGER_TYPE, |
1953564a | 91 | SR_CONF_SAMPLERATE, |
8b35f474 JH |
92 | |
93 | /* These are really implemented in the driver, not the hardware. */ | |
1953564a BV |
94 | SR_CONF_LIMIT_SAMPLES, |
95 | SR_CONF_CONTINUOUS, | |
8b35f474 JH |
96 | }; |
97 | ||
da686568 | 98 | static const char *probe_names[] = { |
b36e7153 | 99 | "0", "1", "2", "3", "4", "5", "6", "7", |
78693401 UH |
100 | "8", "9", "10", "11", "12", "13", "14", "15", |
101 | NULL, | |
8b35f474 JH |
102 | }; |
103 | ||
d6836bf1 | 104 | static const uint64_t samplerates[] = { |
79dc6498 JH |
105 | SR_KHZ(20), |
106 | SR_KHZ(25), | |
897c1a2e JH |
107 | SR_KHZ(50), |
108 | SR_KHZ(100), | |
9304d576 JH |
109 | SR_KHZ(200), |
110 | SR_KHZ(250), | |
111 | SR_KHZ(500), | |
8b35f474 JH |
112 | SR_MHZ(1), |
113 | SR_MHZ(2), | |
114 | SR_MHZ(3), | |
115 | SR_MHZ(4), | |
116 | SR_MHZ(6), | |
117 | SR_MHZ(8), | |
118 | SR_MHZ(12), | |
119 | SR_MHZ(16), | |
772a0e61 | 120 | SR_MHZ(24), |
8b35f474 JH |
121 | }; |
122 | ||
a8cc8e44 | 123 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info; |
a873c594 | 124 | static struct sr_dev_driver *di = &fx2lafw_driver_info; |
25a0f108 | 125 | static int hw_dev_close(struct sr_dev_inst *sdi); |
69b07d14 | 126 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
610dbb70 | 127 | |
b1eeb67e JH |
128 | /** |
129 | * Check the USB configuration to determine if this is an fx2lafw device. | |
130 | * | |
f9a69557 UH |
131 | * @return TRUE if the device's configuration profile match fx2lafw |
132 | * configuration, FALSE otherwise. | |
b1eeb67e | 133 | */ |
f9a69557 | 134 | static gboolean check_conf_profile(libusb_device *dev) |
b1eeb67e JH |
135 | { |
136 | struct libusb_device_descriptor des; | |
6b73d9a5 BV |
137 | struct libusb_device_handle *hdl; |
138 | gboolean ret; | |
139 | unsigned char strdesc[64]; | |
b1eeb67e | 140 | |
6b73d9a5 BV |
141 | hdl = NULL; |
142 | ret = FALSE; | |
b1eeb67e | 143 | while (!ret) { |
da686568 | 144 | /* Assume the FW has not been loaded, unless proven wrong. */ |
b1eeb67e JH |
145 | if (libusb_get_device_descriptor(dev, &des) != 0) |
146 | break; | |
147 | ||
6b73d9a5 | 148 | if (libusb_open(dev, &hdl) != 0) |
b1eeb67e JH |
149 | break; |
150 | ||
6b73d9a5 | 151 | if (libusb_get_string_descriptor_ascii(hdl, |
b99457f0 | 152 | des.iManufacturer, strdesc, sizeof(strdesc)) < 0) |
b1eeb67e | 153 | break; |
6b73d9a5 | 154 | if (strncmp((const char *)strdesc, "sigrok", 6)) |
b1eeb67e JH |
155 | break; |
156 | ||
6b73d9a5 BV |
157 | if (libusb_get_string_descriptor_ascii(hdl, |
158 | des.iProduct, strdesc, sizeof(strdesc)) < 0) | |
b1eeb67e | 159 | break; |
6b73d9a5 | 160 | if (strncmp((const char *)strdesc, "fx2lafw", 7)) |
b1eeb67e JH |
161 | break; |
162 | ||
b1eeb67e | 163 | /* If we made it here, it must be an fx2lafw. */ |
f9a69557 | 164 | ret = TRUE; |
b1eeb67e | 165 | } |
6b73d9a5 BV |
166 | if (hdl) |
167 | libusb_close(hdl); | |
b1eeb67e JH |
168 | |
169 | return ret; | |
170 | } | |
171 | ||
25a0f108 | 172 | static int fx2lafw_dev_open(struct sr_dev_inst *sdi) |
43125c69 JH |
173 | { |
174 | libusb_device **devlist; | |
250a78c7 | 175 | struct sr_usb_dev_inst *usb; |
43125c69 | 176 | struct libusb_device_descriptor des; |
dc9dbe94 | 177 | struct dev_context *devc; |
b99457f0 | 178 | struct drv_context *drvc; |
13bf7ecc | 179 | struct version_info vi; |
b99457f0 | 180 | int ret, skip, i, device_count; |
1e94408a | 181 | uint8_t revid; |
43125c69 | 182 | |
b99457f0 | 183 | drvc = di->priv; |
dc9dbe94 | 184 | devc = sdi->priv; |
250a78c7 | 185 | usb = sdi->conn; |
43125c69 JH |
186 | |
187 | if (sdi->status == SR_ST_ACTIVE) | |
b99457f0 | 188 | /* Device is already in use. */ |
43125c69 JH |
189 | return SR_ERR; |
190 | ||
191 | skip = 0; | |
b99457f0 | 192 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
6fbe5e60 | 193 | if (device_count < 0) { |
b99457f0 UH |
194 | sr_err("Failed to get device list: %s.", |
195 | libusb_error_name(device_count)); | |
6fbe5e60 JH |
196 | return SR_ERR; |
197 | } | |
198 | ||
199 | for (i = 0; i < device_count; i++) { | |
ebc34738 | 200 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
f427daef | 201 | sr_err("Failed to get device descriptor: %s.", |
d4928d71 | 202 | libusb_error_name(ret)); |
43125c69 JH |
203 | continue; |
204 | } | |
205 | ||
dc9dbe94 BV |
206 | if (des.idVendor != devc->profile->vid |
207 | || des.idProduct != devc->profile->pid) | |
43125c69 JH |
208 | continue; |
209 | ||
210 | if (sdi->status == SR_ST_INITIALIZING) { | |
25a0f108 | 211 | if (skip != sdi->index) { |
43125c69 JH |
212 | /* Skip devices of this type that aren't the one we want. */ |
213 | skip += 1; | |
214 | continue; | |
215 | } | |
216 | } else if (sdi->status == SR_ST_INACTIVE) { | |
217 | /* | |
218 | * This device is fully enumerated, so we need to find | |
219 | * this device by vendor, product, bus and address. | |
220 | */ | |
250a78c7 BV |
221 | if (libusb_get_bus_number(devlist[i]) != usb->bus |
222 | || libusb_get_device_address(devlist[i]) != usb->address) | |
b99457f0 | 223 | /* This is not the one. */ |
43125c69 JH |
224 | continue; |
225 | } | |
226 | ||
250a78c7 BV |
227 | if (!(ret = libusb_open(devlist[i], &usb->devhdl))) { |
228 | if (usb->address == 0xff) | |
43125c69 | 229 | /* |
b99457f0 UH |
230 | * First time we touch this device after FW |
231 | * upload, so we don't know the address yet. | |
43125c69 | 232 | */ |
250a78c7 | 233 | usb->address = libusb_get_device_address(devlist[i]); |
43125c69 | 234 | } else { |
f427daef | 235 | sr_err("Failed to open device: %s.", |
d4928d71 | 236 | libusb_error_name(ret)); |
13bf7ecc JH |
237 | break; |
238 | } | |
239 | ||
250a78c7 | 240 | ret = command_get_fw_version(usb->devhdl, &vi); |
44dfd483 | 241 | if (ret != SR_OK) { |
b99457f0 | 242 | sr_err("Failed to get firmware version."); |
13bf7ecc | 243 | break; |
43125c69 JH |
244 | } |
245 | ||
250a78c7 | 246 | ret = command_get_revid_version(usb->devhdl, &revid); |
1e94408a | 247 | if (ret != SR_OK) { |
b99457f0 | 248 | sr_err("Failed to get REVID."); |
1e94408a UH |
249 | break; |
250 | } | |
251 | ||
0a8c0c32 UH |
252 | /* |
253 | * Changes in major version mean incompatible/API changes, so | |
254 | * bail out if we encounter an incompatible version. | |
255 | * Different minor versions are OK, they should be compatible. | |
256 | */ | |
257 | if (vi.major != FX2LAFW_REQUIRED_VERSION_MAJOR) { | |
f427daef | 258 | sr_err("Expected firmware version %d.x, " |
0a8c0c32 UH |
259 | "got %d.%d.", FX2LAFW_REQUIRED_VERSION_MAJOR, |
260 | vi.major, vi.minor); | |
13bf7ecc JH |
261 | break; |
262 | } | |
263 | ||
264 | sdi->status = SR_ST_ACTIVE; | |
b99457f0 | 265 | sr_info("Opened device %d on %d.%d, " |
cbc80f8f | 266 | "interface %d, firmware %d.%d.", |
250a78c7 | 267 | sdi->index, usb->bus, usb->address, |
cbc80f8f AG |
268 | USB_INTERFACE, vi.major, vi.minor); |
269 | ||
270 | sr_info("Detected REVID=%d, it's a Cypress CY7C68013%s.", | |
271 | revid, (revid != 1) ? " (FX2)" : "A (FX2LP)"); | |
13bf7ecc | 272 | |
43125c69 JH |
273 | break; |
274 | } | |
275 | libusb_free_device_list(devlist, 1); | |
276 | ||
277 | if (sdi->status != SR_ST_ACTIVE) | |
278 | return SR_ERR; | |
279 | ||
280 | return SR_OK; | |
281 | } | |
282 | ||
014359e3 | 283 | static int configure_probes(const struct sr_dev_inst *sdi) |
6c6781b6 | 284 | { |
014359e3 | 285 | struct dev_context *devc; |
6c6781b6 JH |
286 | struct sr_probe *probe; |
287 | GSList *l; | |
288 | int probe_bit, stage, i; | |
289 | char *tc; | |
290 | ||
014359e3 | 291 | devc = sdi->priv; |
6c6781b6 | 292 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
dc9dbe94 BV |
293 | devc->trigger_mask[i] = 0; |
294 | devc->trigger_value[i] = 0; | |
6c6781b6 JH |
295 | } |
296 | ||
297 | stage = -1; | |
014359e3 | 298 | for (l = sdi->probes; l; l = l->next) { |
6c6781b6 JH |
299 | probe = (struct sr_probe *)l->data; |
300 | if (probe->enabled == FALSE) | |
301 | continue; | |
d1ddc7a9 | 302 | |
b35c8293 | 303 | if (probe->index > 7) |
dc9dbe94 | 304 | devc->sample_wide = TRUE; |
d1ddc7a9 | 305 | |
b35c8293 | 306 | probe_bit = 1 << (probe->index); |
6c6781b6 JH |
307 | if (!(probe->trigger)) |
308 | continue; | |
309 | ||
310 | stage = 0; | |
311 | for (tc = probe->trigger; *tc; tc++) { | |
dc9dbe94 | 312 | devc->trigger_mask[stage] |= probe_bit; |
6c6781b6 | 313 | if (*tc == '1') |
dc9dbe94 | 314 | devc->trigger_value[stage] |= probe_bit; |
6c6781b6 JH |
315 | stage++; |
316 | if (stage > NUM_TRIGGER_STAGES) | |
317 | return SR_ERR; | |
318 | } | |
319 | } | |
320 | ||
321 | if (stage == -1) | |
322 | /* | |
323 | * We didn't configure any triggers, make sure acquisition | |
324 | * doesn't wait for any. | |
325 | */ | |
dc9dbe94 | 326 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 327 | else |
dc9dbe94 | 328 | devc->trigger_stage = 0; |
6c6781b6 JH |
329 | |
330 | return SR_OK; | |
331 | } | |
332 | ||
dc9dbe94 | 333 | static struct dev_context *fx2lafw_dev_new(void) |
187b3582 | 334 | { |
dc9dbe94 | 335 | struct dev_context *devc; |
187b3582 | 336 | |
dc9dbe94 | 337 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
b99457f0 | 338 | sr_err("Device context malloc failed."); |
187b3582 JH |
339 | return NULL; |
340 | } | |
341 | ||
dc9dbe94 | 342 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 | 343 | |
dc9dbe94 | 344 | return devc; |
187b3582 | 345 | } |
f302a082 | 346 | |
f69b47f0 BV |
347 | static int clear_instances(void) |
348 | { | |
72f9d6dc | 349 | return std_dev_clear(di, NULL); |
f69b47f0 BV |
350 | } |
351 | ||
34f06b90 | 352 | static int hw_init(struct sr_context *sr_ctx) |
61136ea6 | 353 | { |
063e7aef | 354 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); |
61136ea6 BV |
355 | } |
356 | ||
3a7a22cb | 357 | static GSList *hw_scan(GSList *options) |
f302a082 | 358 | { |
dc9dbe94 BV |
359 | struct drv_context *drvc; |
360 | struct dev_context *devc; | |
754b5ff2 BV |
361 | struct sr_dev_inst *sdi; |
362 | struct sr_usb_dev_inst *usb; | |
3a7a22cb | 363 | struct sr_probe *probe; |
754b5ff2 BV |
364 | struct sr_config *src; |
365 | const struct fx2lafw_profile *prof; | |
366 | GSList *l, *devices, *conn_devices; | |
367 | struct libusb_device_descriptor des; | |
187b3582 | 368 | libusb_device **devlist; |
3a7a22cb | 369 | int devcnt, num_logic_probes, ret, i, j; |
754b5ff2 | 370 | const char *conn; |
3a7a22cb | 371 | |
3a7a22cb | 372 | (void)options; |
64d33dc2 | 373 | |
a873c594 | 374 | drvc = di->priv; |
187b3582 | 375 | |
f69b47f0 BV |
376 | /* This scan always invalidates any previous scans. */ |
377 | clear_instances(); | |
378 | ||
754b5ff2 BV |
379 | conn = NULL; |
380 | for (l = options; l; l = l->next) { | |
381 | src = l->data; | |
382 | switch (src->key) { | |
383 | case SR_CONF_CONN: | |
384 | conn = g_variant_get_string(src->data, NULL); | |
385 | break; | |
386 | } | |
387 | } | |
388 | if (conn) | |
389 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
390 | else | |
391 | conn_devices = NULL; | |
392 | ||
921634ec | 393 | /* Find all fx2lafw compatible devices and upload firmware to them. */ |
3a7a22cb | 394 | devices = NULL; |
d4abb463 | 395 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
187b3582 | 396 | for (i = 0; devlist[i]; i++) { |
754b5ff2 BV |
397 | if (conn) { |
398 | usb = NULL; | |
399 | for (l = conn_devices; l; l = l->next) { | |
400 | usb = l->data; | |
401 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
402 | && usb->address == libusb_get_device_address(devlist[i])) | |
403 | break; | |
404 | } | |
405 | if (!l) | |
406 | /* This device matched none of the ones that | |
407 | * matched the conn specification. */ | |
408 | continue; | |
409 | } | |
187b3582 | 410 | |
754b5ff2 | 411 | if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) { |
f427daef | 412 | sr_warn("Failed to get device descriptor: %s.", |
d4928d71 | 413 | libusb_error_name(ret)); |
187b3582 JH |
414 | continue; |
415 | } | |
416 | ||
da686568 | 417 | prof = NULL; |
187b3582 JH |
418 | for (j = 0; supported_fx2[j].vid; j++) { |
419 | if (des.idVendor == supported_fx2[j].vid && | |
420 | des.idProduct == supported_fx2[j].pid) { | |
da686568 | 421 | prof = &supported_fx2[j]; |
187b3582 JH |
422 | } |
423 | } | |
424 | ||
b99457f0 | 425 | /* Skip if the device was not found. */ |
da686568 | 426 | if (!prof) |
187b3582 JH |
427 | continue; |
428 | ||
dc9dbe94 | 429 | devcnt = g_slist_length(drvc->instances); |
187b3582 | 430 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, |
da686568 | 431 | prof->vendor, prof->model, prof->model_version); |
f4a9e5c0 | 432 | if (!sdi) |
25a0f108 | 433 | return NULL; |
a873c594 | 434 | sdi->driver = di; |
187b3582 | 435 | |
06717a8a BV |
436 | /* Fill in probelist according to this device's profile. */ |
437 | num_logic_probes = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; | |
c5e82ca5 | 438 | for (j = 0; j < num_logic_probes; j++) { |
06717a8a BV |
439 | if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE, |
440 | probe_names[j]))) | |
25a0f108 | 441 | return NULL; |
06717a8a BV |
442 | sdi->probes = g_slist_append(sdi->probes, probe); |
443 | } | |
444 | ||
dc9dbe94 BV |
445 | devc = fx2lafw_dev_new(); |
446 | devc->profile = prof; | |
447 | sdi->priv = devc; | |
448 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
a8cc8e44 | 449 | devices = g_slist_append(devices, sdi); |
187b3582 | 450 | |
b1eeb67e JH |
451 | if (check_conf_profile(devlist[i])) { |
452 | /* Already has the firmware, so fix the new address. */ | |
f427daef | 453 | sr_dbg("Found an fx2lafw device."); |
b1eeb67e | 454 | sdi->status = SR_ST_INACTIVE; |
250a78c7 BV |
455 | sdi->inst_type = SR_INST_USB; |
456 | sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), | |
457 | libusb_get_device_address(devlist[i]), NULL); | |
b1eeb67e | 458 | } else { |
f8b07fc6 | 459 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
da686568 | 460 | prof->firmware) == SR_OK) |
b99457f0 | 461 | /* Store when this device's FW was updated. */ |
dc9dbe94 | 462 | devc->fw_updated = g_get_monotonic_time(); |
b1eeb67e | 463 | else |
f427daef | 464 | sr_err("Firmware upload failed for " |
7ae2f9d5 | 465 | "device %d.", devcnt); |
250a78c7 BV |
466 | sdi->inst_type = SR_INST_USB; |
467 | sdi->conn = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]), | |
468 | 0xff, NULL); | |
b1eeb67e | 469 | } |
187b3582 JH |
470 | } |
471 | libusb_free_device_list(devlist, 1); | |
472 | ||
3a7a22cb | 473 | return devices; |
f302a082 JH |
474 | } |
475 | ||
811deee4 BV |
476 | static GSList *hw_dev_list(void) |
477 | { | |
0e94d524 | 478 | return ((struct drv_context *)(di->priv))->instances; |
811deee4 BV |
479 | } |
480 | ||
25a0f108 | 481 | static int hw_dev_open(struct sr_dev_inst *sdi) |
f302a082 | 482 | { |
250a78c7 | 483 | struct sr_usb_dev_inst *usb; |
dc9dbe94 | 484 | struct dev_context *devc; |
e8bd58ff UH |
485 | int ret; |
486 | int64_t timediff_us, timediff_ms; | |
43125c69 | 487 | |
dc9dbe94 | 488 | devc = sdi->priv; |
250a78c7 | 489 | usb = sdi->conn; |
43125c69 JH |
490 | |
491 | /* | |
f60fdf6e UH |
492 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
493 | * milliseconds for the FX2 to renumerate. | |
43125c69 | 494 | */ |
3b6c1930 | 495 | ret = SR_ERR; |
dc9dbe94 | 496 | if (devc->fw_updated > 0) { |
f427daef | 497 | sr_info("Waiting for device to reset."); |
b99457f0 | 498 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ |
43125c69 | 499 | g_usleep(300 * 1000); |
e8bd58ff | 500 | timediff_ms = 0; |
f60fdf6e | 501 | while (timediff_ms < MAX_RENUM_DELAY_MS) { |
25a0f108 | 502 | if ((ret = fx2lafw_dev_open(sdi)) == SR_OK) |
43125c69 JH |
503 | break; |
504 | g_usleep(100 * 1000); | |
e8bd58ff | 505 | |
dc9dbe94 | 506 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
3b6c1930 | 507 | timediff_ms = timediff_us / 1000; |
b99457f0 | 508 | sr_spew("Waited %" PRIi64 "ms.", timediff_ms); |
43125c69 | 509 | } |
443a14d8 AG |
510 | if (ret != SR_OK) { |
511 | sr_err("Device failed to renumerate."); | |
512 | return SR_ERR; | |
513 | } | |
c0bf69c2 | 514 | sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); |
43125c69 | 515 | } else { |
443a14d8 | 516 | sr_info("Firmware upload was not needed."); |
25a0f108 | 517 | ret = fx2lafw_dev_open(sdi); |
43125c69 JH |
518 | } |
519 | ||
ebc34738 | 520 | if (ret != SR_OK) { |
f427daef | 521 | sr_err("Unable to open device."); |
43125c69 JH |
522 | return SR_ERR; |
523 | } | |
378abfea | 524 | |
250a78c7 | 525 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
ebc34738 | 526 | if (ret != 0) { |
0c156e06 JH |
527 | switch(ret) { |
528 | case LIBUSB_ERROR_BUSY: | |
f427daef | 529 | sr_err("Unable to claim USB interface. Another " |
b99457f0 | 530 | "program or driver has already claimed it."); |
0c156e06 | 531 | break; |
0c156e06 | 532 | case LIBUSB_ERROR_NO_DEVICE: |
f427daef | 533 | sr_err("Device has been disconnected."); |
0c156e06 | 534 | break; |
0c156e06 | 535 | default: |
f427daef | 536 | sr_err("Unable to claim interface: %s.", |
d4928d71 | 537 | libusb_error_name(ret)); |
0c156e06 JH |
538 | break; |
539 | } | |
540 | ||
43125c69 JH |
541 | return SR_ERR; |
542 | } | |
543 | ||
dc9dbe94 | 544 | if (devc->cur_samplerate == 0) { |
f92994fd | 545 | /* Samplerate hasn't been set; default to the slowest one. */ |
d6836bf1 | 546 | devc->cur_samplerate = samplerates[0]; |
f92994fd JH |
547 | } |
548 | ||
f302a082 JH |
549 | return SR_OK; |
550 | } | |
551 | ||
25a0f108 | 552 | static int hw_dev_close(struct sr_dev_inst *sdi) |
f302a082 | 553 | { |
250a78c7 | 554 | struct sr_usb_dev_inst *usb; |
961009b0 | 555 | |
250a78c7 BV |
556 | usb = sdi->conn; |
557 | if (usb->devhdl == NULL) | |
25a0f108 | 558 | return SR_ERR; |
f1898235 | 559 | |
250a78c7 BV |
560 | sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", |
561 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
562 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
563 | libusb_close(usb->devhdl); | |
564 | usb->devhdl = NULL; | |
25a0f108 | 565 | sdi->status = SR_ST_INACTIVE; |
f1898235 | 566 | |
f302a082 JH |
567 | return SR_OK; |
568 | } | |
569 | ||
570 | static int hw_cleanup(void) | |
571 | { | |
dc9dbe94 | 572 | struct drv_context *drvc; |
f69b47f0 | 573 | int ret; |
187b3582 | 574 | |
a873c594 | 575 | if (!(drvc = di->priv)) |
dc9dbe94 BV |
576 | return SR_OK; |
577 | ||
f69b47f0 | 578 | ret = clear_instances(); |
187b3582 | 579 | |
dc9dbe94 | 580 | g_free(drvc); |
a873c594 | 581 | di->priv = NULL; |
187b3582 | 582 | |
62bc70e4 | 583 | return ret; |
f302a082 JH |
584 | } |
585 | ||
d6836bf1 | 586 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi) |
f302a082 | 587 | { |
dc9dbe94 | 588 | struct dev_context *devc; |
89befd46 BV |
589 | struct sr_usb_dev_inst *usb; |
590 | char str[128]; | |
8b35f474 | 591 | |
035a1078 | 592 | switch (id) { |
89befd46 BV |
593 | case SR_CONF_CONN: |
594 | if (!sdi || !sdi->conn) | |
38ab8dbe | 595 | return SR_ERR_ARG; |
89befd46 BV |
596 | usb = sdi->conn; |
597 | if (usb->address == 255) | |
598 | /* Device still needs to re-enumerate after firmware | |
599 | * upload, so we don't know its (future) address. */ | |
600 | return SR_ERR; | |
601 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
602 | *data = g_variant_new_string(str); | |
603 | break; | |
123e1313 | 604 | case SR_CONF_SAMPLERATE: |
89befd46 | 605 | if (!sdi) |
6e9339aa | 606 | return SR_ERR; |
89befd46 BV |
607 | devc = sdi->priv; |
608 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
6e9339aa BV |
609 | break; |
610 | default: | |
bd6fbf62 | 611 | return SR_ERR_NA; |
8b35f474 JH |
612 | } |
613 | ||
6e9339aa | 614 | return SR_OK; |
f302a082 JH |
615 | } |
616 | ||
d6836bf1 | 617 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) |
f302a082 | 618 | { |
dc9dbe94 | 619 | struct dev_context *devc; |
7cb621d4 JH |
620 | int ret; |
621 | ||
dc9dbe94 | 622 | devc = sdi->priv; |
7cb621d4 | 623 | |
035a1078 | 624 | if (id == SR_CONF_SAMPLERATE) { |
d6836bf1 | 625 | devc->cur_samplerate = g_variant_get_uint64(data); |
e3186647 | 626 | ret = SR_OK; |
035a1078 | 627 | } else if (id == SR_CONF_LIMIT_SAMPLES) { |
d6836bf1 | 628 | devc->limit_samples = g_variant_get_uint64(data); |
7cb621d4 JH |
629 | ret = SR_OK; |
630 | } else { | |
bd6fbf62 | 631 | ret = SR_ERR_NA; |
7cb621d4 JH |
632 | } |
633 | ||
634 | return ret; | |
f302a082 JH |
635 | } |
636 | ||
d6836bf1 | 637 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) |
a1c743fc | 638 | { |
d6836bf1 BV |
639 | GVariant *gvar; |
640 | GVariantBuilder gvb; | |
a1c743fc BV |
641 | |
642 | (void)sdi; | |
643 | ||
644 | switch (key) { | |
89befd46 BV |
645 | case SR_CONF_SCAN_OPTIONS: |
646 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
647 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
648 | break; | |
9a6517d1 | 649 | case SR_CONF_DEVICE_OPTIONS: |
d6836bf1 BV |
650 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
651 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
9a6517d1 | 652 | break; |
a1c743fc | 653 | case SR_CONF_SAMPLERATE: |
d6836bf1 BV |
654 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); |
655 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
656 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
657 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
658 | *data = g_variant_builder_end(&gvb); | |
a1c743fc | 659 | break; |
c50277a6 | 660 | case SR_CONF_TRIGGER_TYPE: |
d6836bf1 | 661 | *data = g_variant_new_string(TRIGGER_TYPE); |
c50277a6 | 662 | break; |
a1c743fc | 663 | default: |
bd6fbf62 | 664 | return SR_ERR_NA; |
a1c743fc BV |
665 | } |
666 | ||
667 | return SR_OK; | |
668 | } | |
669 | ||
1f9813eb | 670 | static int receive_data(int fd, int revents, void *cb_data) |
610dbb70 JH |
671 | { |
672 | struct timeval tv; | |
b99457f0 | 673 | struct drv_context *drvc; |
610dbb70 | 674 | |
610dbb70 JH |
675 | (void)fd; |
676 | (void)revents; | |
1f9813eb | 677 | (void)cb_data; |
610dbb70 | 678 | |
b99457f0 UH |
679 | drvc = di->priv; |
680 | ||
610dbb70 | 681 | tv.tv_sec = tv.tv_usec = 0; |
d4abb463 | 682 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
610dbb70 JH |
683 | |
684 | return TRUE; | |
685 | } | |
686 | ||
dc9dbe94 | 687 | static void abort_acquisition(struct dev_context *devc) |
cb61e9f7 | 688 | { |
e7d087bf | 689 | int i; |
0caa1ef0 | 690 | |
dc9dbe94 | 691 | devc->num_samples = -1; |
0caa1ef0 | 692 | |
dc9dbe94 BV |
693 | for (i = devc->num_transfers - 1; i >= 0; i--) { |
694 | if (devc->transfers[i]) | |
695 | libusb_cancel_transfer(devc->transfers[i]); | |
0caa1ef0 | 696 | } |
cb61e9f7 JH |
697 | } |
698 | ||
dc9dbe94 | 699 | static void finish_acquisition(struct dev_context *devc) |
2e526f4a JH |
700 | { |
701 | struct sr_datafeed_packet packet; | |
a873c594 | 702 | struct drv_context *drvc = di->priv; |
b99457f0 | 703 | const struct libusb_pollfd **lupfd; |
cb61e9f7 | 704 | int i; |
2e526f4a | 705 | |
b99457f0 | 706 | /* Terminate session. */ |
2e526f4a | 707 | packet.type = SR_DF_END; |
3e9b7f9c | 708 | sr_session_send(devc->cb_data, &packet); |
2e526f4a | 709 | |
b99457f0 UH |
710 | /* Remove fds from polling. */ |
711 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); | |
cb61e9f7 JH |
712 | for (i = 0; lupfd[i]; i++) |
713 | sr_source_remove(lupfd[i]->fd); | |
714 | free(lupfd); /* NOT g_free()! */ | |
0caa1ef0 | 715 | |
dc9dbe94 BV |
716 | devc->num_transfers = 0; |
717 | g_free(devc->transfers); | |
2e526f4a JH |
718 | } |
719 | ||
f855de75 LPC |
720 | static void free_transfer(struct libusb_transfer *transfer) |
721 | { | |
b99457f0 | 722 | struct dev_context *devc; |
0caa1ef0 | 723 | unsigned int i; |
f855de75 | 724 | |
b99457f0 UH |
725 | devc = transfer->user_data; |
726 | ||
f855de75 LPC |
727 | g_free(transfer->buffer); |
728 | transfer->buffer = NULL; | |
729 | libusb_free_transfer(transfer); | |
730 | ||
dc9dbe94 BV |
731 | for (i = 0; i < devc->num_transfers; i++) { |
732 | if (devc->transfers[i] == transfer) { | |
733 | devc->transfers[i] = NULL; | |
0caa1ef0 LPC |
734 | break; |
735 | } | |
736 | } | |
737 | ||
dc9dbe94 BV |
738 | devc->submitted_transfers--; |
739 | if (devc->submitted_transfers == 0) | |
740 | finish_acquisition(devc); | |
f855de75 LPC |
741 | } |
742 | ||
17dff8a1 LPC |
743 | static void resubmit_transfer(struct libusb_transfer *transfer) |
744 | { | |
b99457f0 | 745 | int ret; |
d4928d71 | 746 | |
b99457f0 | 747 | if ((ret = libusb_submit_transfer(transfer)) == LIBUSB_SUCCESS) |
d4928d71 PS |
748 | return; |
749 | ||
750 | free_transfer(transfer); | |
751 | /* TODO: Stop session? */ | |
752 | ||
f427daef | 753 | sr_err("%s: %s", __func__, libusb_error_name(ret)); |
17dff8a1 LPC |
754 | } |
755 | ||
610dbb70 JH |
756 | static void receive_transfer(struct libusb_transfer *transfer) |
757 | { | |
7ce737a7 | 758 | gboolean packet_has_error = FALSE; |
610dbb70 JH |
759 | struct sr_datafeed_packet packet; |
760 | struct sr_datafeed_logic logic; | |
b99457f0 UH |
761 | struct dev_context *devc; |
762 | int trigger_offset, i, sample_width, cur_sample_count; | |
763 | int trigger_offset_bytes; | |
764 | uint8_t *cur_buf; | |
765 | ||
766 | devc = transfer->user_data; | |
610dbb70 | 767 | |
610dbb70 JH |
768 | /* |
769 | * If acquisition has already ended, just free any queued up | |
770 | * transfer that come in. | |
771 | */ | |
dc9dbe94 | 772 | if (devc->num_samples == -1) { |
f855de75 | 773 | free_transfer(transfer); |
610dbb70 JH |
774 | return; |
775 | } | |
776 | ||
f427daef | 777 | sr_info("receive_transfer(): status %d received %d bytes.", |
610dbb70 JH |
778 | transfer->status, transfer->actual_length); |
779 | ||
780 | /* Save incoming transfer before reusing the transfer struct. */ | |
b99457f0 UH |
781 | cur_buf = transfer->buffer; |
782 | sample_width = devc->sample_wide ? 2 : 1; | |
783 | cur_sample_count = transfer->actual_length / sample_width; | |
610dbb70 | 784 | |
7ce737a7 LPC |
785 | switch (transfer->status) { |
786 | case LIBUSB_TRANSFER_NO_DEVICE: | |
dc9dbe94 | 787 | abort_acquisition(devc); |
7ce737a7 LPC |
788 | free_transfer(transfer); |
789 | return; | |
790 | case LIBUSB_TRANSFER_COMPLETED: | |
b99457f0 | 791 | case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though. */ |
7ce737a7 LPC |
792 | break; |
793 | default: | |
794 | packet_has_error = TRUE; | |
795 | break; | |
796 | } | |
797 | ||
798 | if (transfer->actual_length == 0 || packet_has_error) { | |
dc9dbe94 BV |
799 | devc->empty_transfer_count++; |
800 | if (devc->empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
610dbb70 JH |
801 | /* |
802 | * The FX2 gave up. End the acquisition, the frontend | |
803 | * will work out that the samplecount is short. | |
804 | */ | |
dc9dbe94 | 805 | abort_acquisition(devc); |
17dff8a1 LPC |
806 | free_transfer(transfer); |
807 | } else { | |
808 | resubmit_transfer(transfer); | |
610dbb70 JH |
809 | } |
810 | return; | |
811 | } else { | |
dc9dbe94 | 812 | devc->empty_transfer_count = 0; |
610dbb70 JH |
813 | } |
814 | ||
6c6781b6 | 815 | trigger_offset = 0; |
dc9dbe94 | 816 | if (devc->trigger_stage >= 0) { |
d1ddc7a9 JH |
817 | for (i = 0; i < cur_sample_count; i++) { |
818 | ||
dc9dbe94 | 819 | const uint16_t cur_sample = devc->sample_wide ? |
d1ddc7a9 JH |
820 | *((const uint16_t*)cur_buf + i) : |
821 | *((const uint8_t*)cur_buf + i); | |
6c6781b6 | 822 | |
dc9dbe94 BV |
823 | if ((cur_sample & devc->trigger_mask[devc->trigger_stage]) == |
824 | devc->trigger_value[devc->trigger_stage]) { | |
6c6781b6 | 825 | /* Match on this trigger stage. */ |
dc9dbe94 BV |
826 | devc->trigger_buffer[devc->trigger_stage] = cur_sample; |
827 | devc->trigger_stage++; | |
6c6781b6 | 828 | |
dc9dbe94 BV |
829 | if (devc->trigger_stage == NUM_TRIGGER_STAGES || |
830 | devc->trigger_mask[devc->trigger_stage] == 0) { | |
6c6781b6 JH |
831 | /* Match on all trigger stages, we're done. */ |
832 | trigger_offset = i + 1; | |
833 | ||
834 | /* | |
835 | * TODO: Send pre-trigger buffer to session bus. | |
836 | * Tell the frontend we hit the trigger here. | |
837 | */ | |
838 | packet.type = SR_DF_TRIGGER; | |
839 | packet.payload = NULL; | |
3e9b7f9c | 840 | sr_session_send(devc->cb_data, &packet); |
6c6781b6 JH |
841 | |
842 | /* | |
b99457f0 UH |
843 | * Send the samples that triggered it, |
844 | * since we're skipping past them. | |
6c6781b6 JH |
845 | */ |
846 | packet.type = SR_DF_LOGIC; | |
847 | packet.payload = &logic; | |
dc9dbe94 BV |
848 | logic.unitsize = sizeof(*devc->trigger_buffer); |
849 | logic.length = devc->trigger_stage * logic.unitsize; | |
850 | logic.data = devc->trigger_buffer; | |
3e9b7f9c | 851 | sr_session_send(devc->cb_data, &packet); |
6c6781b6 | 852 | |
dc9dbe94 | 853 | devc->trigger_stage = TRIGGER_FIRED; |
6c6781b6 JH |
854 | break; |
855 | } | |
dc9dbe94 | 856 | } else if (devc->trigger_stage > 0) { |
f3ab43a8 LPC |
857 | /* |
858 | * We had a match before, but not in the next sample. However, we may | |
859 | * have a match on this stage in the next bit -- trigger on 0001 will | |
860 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
861 | * the next sample from the one that matched originally, which the | |
862 | * counter increment at the end of the loop takes care of. | |
863 | */ | |
dc9dbe94 | 864 | i -= devc->trigger_stage; |
6c6781b6 JH |
865 | if (i < -1) |
866 | i = -1; /* Oops, went back past this buffer. */ | |
867 | /* Reset trigger stage. */ | |
dc9dbe94 | 868 | devc->trigger_stage = 0; |
6c6781b6 JH |
869 | } |
870 | } | |
871 | } | |
610dbb70 | 872 | |
dc9dbe94 | 873 | if (devc->trigger_stage == TRIGGER_FIRED) { |
6c6781b6 | 874 | /* Send the incoming transfer to the session bus. */ |
b99457f0 | 875 | trigger_offset_bytes = trigger_offset * sample_width; |
6c6781b6 JH |
876 | packet.type = SR_DF_LOGIC; |
877 | packet.payload = &logic; | |
d1ddc7a9 JH |
878 | logic.length = transfer->actual_length - trigger_offset_bytes; |
879 | logic.unitsize = sample_width; | |
880 | logic.data = cur_buf + trigger_offset_bytes; | |
3e9b7f9c | 881 | sr_session_send(devc->cb_data, &packet); |
6c6781b6 | 882 | |
dc9dbe94 BV |
883 | devc->num_samples += cur_sample_count; |
884 | if (devc->limit_samples && | |
885 | (unsigned int)devc->num_samples > devc->limit_samples) { | |
886 | abort_acquisition(devc); | |
0caa1ef0 LPC |
887 | free_transfer(transfer); |
888 | return; | |
6c6781b6 JH |
889 | } |
890 | } else { | |
891 | /* | |
892 | * TODO: Buffer pre-trigger data in capture | |
893 | * ratio-sized buffer. | |
894 | */ | |
610dbb70 | 895 | } |
17dff8a1 LPC |
896 | |
897 | resubmit_transfer(transfer); | |
610dbb70 JH |
898 | } |
899 | ||
5af666a9 LPC |
900 | static unsigned int to_bytes_per_ms(unsigned int samplerate) |
901 | { | |
902 | return samplerate / 1000; | |
903 | } | |
904 | ||
dc9dbe94 | 905 | static size_t get_buffer_size(struct dev_context *devc) |
5af666a9 LPC |
906 | { |
907 | size_t s; | |
908 | ||
b99457f0 UH |
909 | /* |
910 | * The buffer should be large enough to hold 10ms of data and | |
911 | * a multiple of 512. | |
912 | */ | |
dc9dbe94 | 913 | s = 10 * to_bytes_per_ms(devc->cur_samplerate); |
5af666a9 LPC |
914 | return (s + 511) & ~511; |
915 | } | |
916 | ||
dc9dbe94 | 917 | static unsigned int get_number_of_transfers(struct dev_context *devc) |
5af666a9 LPC |
918 | { |
919 | unsigned int n; | |
920 | ||
b99457f0 | 921 | /* Total buffer size should be able to hold about 500ms of data. */ |
dc9dbe94 | 922 | n = 500 * to_bytes_per_ms(devc->cur_samplerate) / get_buffer_size(devc); |
5af666a9 LPC |
923 | |
924 | if (n > NUM_SIMUL_TRANSFERS) | |
925 | return NUM_SIMUL_TRANSFERS; | |
926 | ||
927 | return n; | |
928 | } | |
929 | ||
dc9dbe94 | 930 | static unsigned int get_timeout(struct dev_context *devc) |
5af666a9 LPC |
931 | { |
932 | size_t total_size; | |
933 | unsigned int timeout; | |
934 | ||
dc9dbe94 BV |
935 | total_size = get_buffer_size(devc) * get_number_of_transfers(devc); |
936 | timeout = total_size / to_bytes_per_ms(devc->cur_samplerate); | |
b99457f0 | 937 | return timeout + timeout / 4; /* Leave a headroom of 25% percent. */ |
5af666a9 LPC |
938 | } |
939 | ||
3ffb6964 BV |
940 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
941 | void *cb_data) | |
f302a082 | 942 | { |
dc9dbe94 | 943 | struct dev_context *devc; |
b99457f0 | 944 | struct drv_context *drvc; |
250a78c7 | 945 | struct sr_usb_dev_inst *usb; |
610dbb70 JH |
946 | struct libusb_transfer *transfer; |
947 | const struct libusb_pollfd **lupfd; | |
b99457f0 | 948 | unsigned int i, timeout, num_transfers; |
5af666a9 | 949 | int ret; |
610dbb70 | 950 | unsigned char *buf; |
b99457f0 | 951 | size_t size; |
610dbb70 | 952 | |
b99457f0 | 953 | drvc = di->priv; |
dc9dbe94 | 954 | devc = sdi->priv; |
250a78c7 | 955 | usb = sdi->conn; |
b99457f0 | 956 | |
dc9dbe94 | 957 | if (devc->submitted_transfers != 0) |
c03f0450 LPC |
958 | return SR_ERR; |
959 | ||
014359e3 | 960 | if (configure_probes(sdi) != SR_OK) { |
b99457f0 | 961 | sr_err("Failed to configure probes."); |
014359e3 BV |
962 | return SR_ERR; |
963 | } | |
964 | ||
3e9b7f9c | 965 | devc->cb_data = cb_data; |
dc9dbe94 BV |
966 | devc->num_samples = 0; |
967 | devc->empty_transfer_count = 0; | |
610dbb70 | 968 | |
b99457f0 UH |
969 | timeout = get_timeout(devc); |
970 | num_transfers = get_number_of_transfers(devc); | |
971 | size = get_buffer_size(devc); | |
5af666a9 | 972 | |
dc9dbe94 | 973 | devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); |
886a52b6 | 974 | if (!devc->transfers) { |
f427daef | 975 | sr_err("USB transfers malloc failed."); |
886a52b6 UH |
976 | return SR_ERR_MALLOC; |
977 | } | |
0caa1ef0 | 978 | |
dc9dbe94 | 979 | devc->num_transfers = num_transfers; |
0caa1ef0 | 980 | |
5af666a9 | 981 | for (i = 0; i < num_transfers; i++) { |
610dbb70 | 982 | if (!(buf = g_try_malloc(size))) { |
b99457f0 | 983 | sr_err("USB transfer buffer malloc failed."); |
610dbb70 JH |
984 | return SR_ERR_MALLOC; |
985 | } | |
986 | transfer = libusb_alloc_transfer(0); | |
250a78c7 | 987 | libusb_fill_bulk_transfer(transfer, usb->devhdl, |
610dbb70 | 988 | 2 | LIBUSB_ENDPOINT_IN, buf, size, |
dc9dbe94 | 989 | receive_transfer, devc, timeout); |
d4928d71 | 990 | if ((ret = libusb_submit_transfer(transfer)) != 0) { |
b99457f0 UH |
991 | sr_err("Failed to submit transfer: %s.", |
992 | libusb_error_name(ret)); | |
610dbb70 JH |
993 | libusb_free_transfer(transfer); |
994 | g_free(buf); | |
dc9dbe94 | 995 | abort_acquisition(devc); |
610dbb70 JH |
996 | return SR_ERR; |
997 | } | |
dc9dbe94 BV |
998 | devc->transfers[i] = transfer; |
999 | devc->submitted_transfers++; | |
610dbb70 JH |
1000 | } |
1001 | ||
d4abb463 | 1002 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
610dbb70 JH |
1003 | for (i = 0; lupfd[i]; i++) |
1004 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, | |
5af666a9 | 1005 | timeout, receive_data, NULL); |
610dbb70 JH |
1006 | free(lupfd); /* NOT g_free()! */ |
1007 | ||
4afdfd46 UH |
1008 | /* Send header packet to the session bus. */ |
1009 | std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); | |
f366e86c | 1010 | |
250a78c7 | 1011 | if ((ret = command_start_acquisition (usb->devhdl, |
dc9dbe94 BV |
1012 | devc->cur_samplerate, devc->sample_wide)) != SR_OK) { |
1013 | abort_acquisition(devc); | |
ebc34738 | 1014 | return ret; |
017375d1 JH |
1015 | } |
1016 | ||
f302a082 JH |
1017 | return SR_OK; |
1018 | } | |
1019 | ||
3cd3a20b | 1020 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ |
69b07d14 | 1021 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
f302a082 | 1022 | { |
2e526f4a | 1023 | (void)cb_data; |
5da93902 | 1024 | |
2e526f4a | 1025 | abort_acquisition(sdi->priv); |
5da93902 | 1026 | |
f302a082 JH |
1027 | return SR_OK; |
1028 | } | |
1029 | ||
c09f0b57 | 1030 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { |
f302a082 | 1031 | .name = "fx2lafw", |
2e7cb004 | 1032 | .longname = "fx2lafw (generic driver for FX2 based LAs)", |
f302a082 JH |
1033 | .api_version = 1, |
1034 | .init = hw_init, | |
1035 | .cleanup = hw_cleanup, | |
61136ea6 | 1036 | .scan = hw_scan, |
811deee4 BV |
1037 | .dev_list = hw_dev_list, |
1038 | .dev_clear = clear_instances, | |
035a1078 BV |
1039 | .config_get = config_get, |
1040 | .config_set = config_set, | |
a1c743fc | 1041 | .config_list = config_list, |
f302a082 JH |
1042 | .dev_open = hw_dev_open, |
1043 | .dev_close = hw_dev_close, | |
f302a082 JH |
1044 | .dev_acquisition_start = hw_dev_acquisition_start, |
1045 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
dc9dbe94 | 1046 | .priv = NULL, |
f302a082 | 1047 | }; |