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Commit | Line | Data |
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f302a082 JH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
8b35f474 | 22 | #include <inttypes.h> |
187b3582 JH |
23 | #include <glib.h> |
24 | #include <libusb.h> | |
f302a082 JH |
25 | #include "config.h" |
26 | #include "sigrok.h" | |
27 | #include "sigrok-internal.h" | |
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 JH |
34 | * EE Electronics ESLA201A |
35 | */ | |
f8b07fc6 JH |
36 | { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, |
37 | FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", 8 }, | |
93a9f3da | 38 | |
7ae2f9d5 UH |
39 | /* |
40 | * CWAV USBee SX | |
4502e869 JH |
41 | */ |
42 | { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, | |
43 | FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", 8 }, | |
44 | ||
7ae2f9d5 UH |
45 | /* |
46 | * Saleae Logic | |
93a9f3da JH |
47 | * EE Electronics ESLA100 |
48 | * Robomotic MiniLogic | |
49 | */ | |
50 | { 0x0925, 0x3881, "Saleae", "Logic", NULL, | |
51 | FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", 8 }, | |
52 | ||
f8b07fc6 | 53 | { 0, 0, 0, 0, 0, 0, 0 } |
187b3582 JH |
54 | }; |
55 | ||
da686568 | 56 | static int hwcaps[] = { |
8b35f474 JH |
57 | SR_HWCAP_LOGIC_ANALYZER, |
58 | SR_HWCAP_SAMPLERATE, | |
59 | ||
60 | /* These are really implemented in the driver, not the hardware. */ | |
61 | SR_HWCAP_LIMIT_SAMPLES, | |
62 | SR_HWCAP_CONTINUOUS, | |
772a0e61 | 63 | 0, |
8b35f474 JH |
64 | }; |
65 | ||
da686568 UH |
66 | /* |
67 | * TODO: Different probe_names[] for each supported device. | |
68 | */ | |
69 | static const char *probe_names[] = { | |
7ae2f9d5 UH |
70 | "0", |
71 | "1", | |
72 | "2", | |
73 | "3", | |
74 | "4", | |
75 | "5", | |
76 | "6", | |
77 | "7", | |
772a0e61 | 78 | NULL, |
8b35f474 JH |
79 | }; |
80 | ||
590b9f9a | 81 | static uint64_t supported_samplerates[] = { |
9304d576 JH |
82 | SR_KHZ(200), |
83 | SR_KHZ(250), | |
84 | SR_KHZ(500), | |
8b35f474 JH |
85 | SR_MHZ(1), |
86 | SR_MHZ(2), | |
87 | SR_MHZ(3), | |
88 | SR_MHZ(4), | |
89 | SR_MHZ(6), | |
90 | SR_MHZ(8), | |
91 | SR_MHZ(12), | |
92 | SR_MHZ(16), | |
772a0e61 | 93 | SR_MHZ(24), |
8b35f474 JH |
94 | }; |
95 | ||
590b9f9a UH |
96 | static struct sr_samplerates samplerates = { |
97 | 0, | |
98 | 0, | |
99 | 0, | |
100 | supported_samplerates, | |
8b35f474 JH |
101 | }; |
102 | ||
cac0bbaa | 103 | static GSList *dev_insts = NULL; |
187b3582 JH |
104 | static libusb_context *usb_context = NULL; |
105 | ||
f92994fd | 106 | static int hw_dev_config_set(int dev_index, int hwcap, void *value); |
da686568 | 107 | static int hw_dev_acquisition_stop(int dev_index, void *cb_data); |
610dbb70 | 108 | |
b1eeb67e JH |
109 | /** |
110 | * Check the USB configuration to determine if this is an fx2lafw device. | |
111 | * | |
f9a69557 UH |
112 | * @return TRUE if the device's configuration profile match fx2lafw |
113 | * configuration, FALSE otherwise. | |
b1eeb67e | 114 | */ |
f9a69557 | 115 | static gboolean check_conf_profile(libusb_device *dev) |
b1eeb67e JH |
116 | { |
117 | struct libusb_device_descriptor des; | |
118 | struct libusb_config_descriptor *conf_dsc = NULL; | |
119 | const struct libusb_interface_descriptor *intf_dsc; | |
f9a69557 | 120 | gboolean ret = FALSE; |
b1eeb67e JH |
121 | |
122 | while (!ret) { | |
da686568 UH |
123 | /* Assume the FW has not been loaded, unless proven wrong. */ |
124 | ret = FALSE; | |
b1eeb67e JH |
125 | |
126 | if (libusb_get_device_descriptor(dev, &des) != 0) | |
127 | break; | |
128 | ||
da686568 | 129 | /* Need exactly 1 configuration. */ |
b1eeb67e | 130 | if (des.bNumConfigurations != 1) |
b1eeb67e JH |
131 | break; |
132 | ||
133 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) | |
134 | break; | |
135 | ||
da686568 | 136 | /* Need exactly 1 interface. */ |
b1eeb67e | 137 | if (conf_dsc->bNumInterfaces != 1) |
b1eeb67e JH |
138 | break; |
139 | ||
da686568 | 140 | /* Need just one alternate setting. */ |
b1eeb67e | 141 | if (conf_dsc->interface[0].num_altsetting != 1) |
b1eeb67e JH |
142 | break; |
143 | ||
da686568 | 144 | /* Need exactly 2 endpoints. */ |
b1eeb67e | 145 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); |
9031ce63 | 146 | if (intf_dsc->bNumEndpoints != 2) |
b1eeb67e JH |
147 | break; |
148 | ||
da686568 | 149 | /* The first endpoint should be 2 (inbound). */ |
b1eeb67e | 150 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != |
da686568 | 151 | (2 | LIBUSB_ENDPOINT_IN)) |
b1eeb67e JH |
152 | break; |
153 | ||
b1eeb67e | 154 | /* If we made it here, it must be an fx2lafw. */ |
f9a69557 | 155 | ret = TRUE; |
b1eeb67e JH |
156 | } |
157 | ||
158 | if (conf_dsc) | |
159 | libusb_free_config_descriptor(conf_dsc); | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
da686568 | 164 | static int fx2lafw_dev_open(int dev_index) |
43125c69 JH |
165 | { |
166 | libusb_device **devlist; | |
167 | struct libusb_device_descriptor des; | |
168 | struct sr_dev_inst *sdi; | |
772a0e61 | 169 | struct context *ctx; |
13bf7ecc | 170 | struct version_info vi; |
ebc34738 | 171 | int ret, skip, i; |
43125c69 JH |
172 | |
173 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) | |
174 | return SR_ERR; | |
175 | ctx = sdi->priv; | |
176 | ||
177 | if (sdi->status == SR_ST_ACTIVE) | |
178 | /* already in use */ | |
179 | return SR_ERR; | |
180 | ||
181 | skip = 0; | |
6fbe5e60 JH |
182 | const int device_count = libusb_get_device_list(usb_context, &devlist); |
183 | if (device_count < 0) { | |
184 | sr_err("fx2lafw: Failed to retrieve device list (%d)", | |
185 | device_count); | |
186 | return SR_ERR; | |
187 | } | |
188 | ||
189 | for (i = 0; i < device_count; i++) { | |
ebc34738 | 190 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
7ae2f9d5 UH |
191 | sr_err("fx2lafw: Failed to get device descriptor: %d.", |
192 | ret); | |
43125c69 JH |
193 | continue; |
194 | } | |
195 | ||
74fcfb80 JH |
196 | if (des.idVendor != ctx->profile->vid |
197 | || des.idProduct != ctx->profile->pid) | |
43125c69 JH |
198 | continue; |
199 | ||
200 | if (sdi->status == SR_ST_INITIALIZING) { | |
201 | if (skip != dev_index) { | |
202 | /* Skip devices of this type that aren't the one we want. */ | |
203 | skip += 1; | |
204 | continue; | |
205 | } | |
206 | } else if (sdi->status == SR_ST_INACTIVE) { | |
207 | /* | |
208 | * This device is fully enumerated, so we need to find | |
209 | * this device by vendor, product, bus and address. | |
210 | */ | |
211 | if (libusb_get_bus_number(devlist[i]) != ctx->usb->bus | |
212 | || libusb_get_device_address(devlist[i]) != ctx->usb->address) | |
213 | /* this is not the one */ | |
214 | continue; | |
215 | } | |
216 | ||
ebc34738 | 217 | if (!(ret = libusb_open(devlist[i], &ctx->usb->devhdl))) { |
43125c69 JH |
218 | if (ctx->usb->address == 0xff) |
219 | /* | |
220 | * first time we touch this device after firmware upload, | |
221 | * so we don't know the address yet. | |
222 | */ | |
223 | ctx->usb->address = libusb_get_device_address(devlist[i]); | |
43125c69 | 224 | } else { |
7ae2f9d5 | 225 | sr_err("fx2lafw: Failed to open device: %d.", ret); |
13bf7ecc JH |
226 | break; |
227 | } | |
228 | ||
44dfd483 UH |
229 | ret = command_get_fw_version(ctx->usb->devhdl, &vi); |
230 | if (ret != SR_OK) { | |
13bf7ecc | 231 | sr_err("fx2lafw: Failed to retrieve " |
44dfd483 | 232 | "firmware version information."); |
13bf7ecc | 233 | break; |
43125c69 JH |
234 | } |
235 | ||
44dfd483 UH |
236 | if (vi.major != FX2LAFW_VERSION_MAJOR || |
237 | vi.minor != FX2LAFW_VERSION_MINOR) { | |
13bf7ecc | 238 | sr_err("fx2lafw: Expected firmware version %d.%02d " |
44dfd483 UH |
239 | "got %d.%02d.", FX2LAFW_VERSION_MAJOR, |
240 | FX2LAFW_VERSION_MINOR, vi.major, vi.minor); | |
13bf7ecc JH |
241 | break; |
242 | } | |
243 | ||
244 | sdi->status = SR_ST_ACTIVE; | |
245 | sr_info("fx2lafw: Opened device %d on %d.%d " | |
246 | "interface %d, firmware version %d.%02d", | |
247 | sdi->index, ctx->usb->bus, ctx->usb->address, | |
248 | USB_INTERFACE, vi.major, vi.minor); | |
249 | ||
43125c69 JH |
250 | break; |
251 | } | |
252 | libusb_free_device_list(devlist, 1); | |
253 | ||
254 | if (sdi->status != SR_ST_ACTIVE) | |
255 | return SR_ERR; | |
256 | ||
257 | return SR_OK; | |
258 | } | |
259 | ||
f1898235 JH |
260 | static void close_dev(struct sr_dev_inst *sdi) |
261 | { | |
772a0e61 | 262 | struct context *ctx; |
f1898235 JH |
263 | |
264 | ctx = sdi->priv; | |
265 | ||
266 | if (ctx->usb->devhdl == NULL) | |
267 | return; | |
268 | ||
7ae2f9d5 UH |
269 | sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", |
270 | sdi->index, ctx->usb->bus, ctx->usb->address, USB_INTERFACE); | |
f1898235 JH |
271 | libusb_release_interface(ctx->usb->devhdl, USB_INTERFACE); |
272 | libusb_close(ctx->usb->devhdl); | |
273 | ctx->usb->devhdl = NULL; | |
274 | sdi->status = SR_ST_INACTIVE; | |
275 | } | |
276 | ||
6c6781b6 JH |
277 | static int configure_probes(struct context *ctx, GSList *probes) |
278 | { | |
279 | struct sr_probe *probe; | |
280 | GSList *l; | |
281 | int probe_bit, stage, i; | |
282 | char *tc; | |
283 | ||
284 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { | |
285 | ctx->trigger_mask[i] = 0; | |
286 | ctx->trigger_value[i] = 0; | |
287 | } | |
288 | ||
289 | stage = -1; | |
290 | for (l = probes; l; l = l->next) { | |
291 | probe = (struct sr_probe *)l->data; | |
292 | if (probe->enabled == FALSE) | |
293 | continue; | |
294 | probe_bit = 1 << (probe->index - 1); | |
295 | if (!(probe->trigger)) | |
296 | continue; | |
297 | ||
298 | stage = 0; | |
299 | for (tc = probe->trigger; *tc; tc++) { | |
300 | ctx->trigger_mask[stage] |= probe_bit; | |
301 | if (*tc == '1') | |
302 | ctx->trigger_value[stage] |= probe_bit; | |
303 | stage++; | |
304 | if (stage > NUM_TRIGGER_STAGES) | |
305 | return SR_ERR; | |
306 | } | |
307 | } | |
308 | ||
309 | if (stage == -1) | |
310 | /* | |
311 | * We didn't configure any triggers, make sure acquisition | |
312 | * doesn't wait for any. | |
313 | */ | |
314 | ctx->trigger_stage = TRIGGER_FIRED; | |
315 | else | |
316 | ctx->trigger_stage = 0; | |
317 | ||
318 | return SR_OK; | |
319 | } | |
320 | ||
da686568 | 321 | static struct context *fx2lafw_dev_new(void) |
187b3582 | 322 | { |
772a0e61 | 323 | struct context *ctx; |
187b3582 | 324 | |
772a0e61 | 325 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { |
7ae2f9d5 | 326 | sr_err("fx2lafw: %s: ctx malloc failed.", __func__); |
187b3582 JH |
327 | return NULL; |
328 | } | |
329 | ||
6c6781b6 JH |
330 | ctx->trigger_stage = TRIGGER_FIRED; |
331 | ||
772a0e61 | 332 | return ctx; |
187b3582 | 333 | } |
f302a082 JH |
334 | |
335 | /* | |
336 | * API callbacks | |
337 | */ | |
338 | ||
da686568 | 339 | static int hw_init(const char *devinfo) |
f302a082 | 340 | { |
187b3582 JH |
341 | struct sr_dev_inst *sdi; |
342 | struct libusb_device_descriptor des; | |
da686568 | 343 | const struct fx2lafw_profile *prof; |
772a0e61 | 344 | struct context *ctx; |
187b3582 | 345 | libusb_device **devlist; |
ebc34738 | 346 | int ret; |
187b3582 JH |
347 | int devcnt = 0; |
348 | int i, j; | |
349 | ||
350 | /* Avoid compiler warnings. */ | |
da686568 | 351 | (void)devinfo; |
187b3582 JH |
352 | |
353 | if (libusb_init(&usb_context) != 0) { | |
7ae2f9d5 | 354 | sr_warn("fx2lafw: Failed to initialize libusb."); |
187b3582 JH |
355 | return 0; |
356 | } | |
357 | ||
7ae2f9d5 | 358 | /* Find all fx2lafw compatible devices and upload firware to them. */ |
187b3582 JH |
359 | libusb_get_device_list(usb_context, &devlist); |
360 | for (i = 0; devlist[i]; i++) { | |
361 | ||
ebc34738 | 362 | if ((ret = libusb_get_device_descriptor( |
7ae2f9d5 UH |
363 | devlist[i], &des)) != 0) { |
364 | sr_warn("fx2lafw: Failed to get device descriptor: %d.", ret); | |
187b3582 JH |
365 | continue; |
366 | } | |
367 | ||
da686568 | 368 | prof = NULL; |
187b3582 JH |
369 | for (j = 0; supported_fx2[j].vid; j++) { |
370 | if (des.idVendor == supported_fx2[j].vid && | |
371 | des.idProduct == supported_fx2[j].pid) { | |
da686568 | 372 | prof = &supported_fx2[j]; |
187b3582 JH |
373 | } |
374 | } | |
375 | ||
376 | /* Skip if the device was not found */ | |
da686568 | 377 | if (!prof) |
187b3582 JH |
378 | continue; |
379 | ||
380 | sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, | |
da686568 | 381 | prof->vendor, prof->model, prof->model_version); |
f4a9e5c0 | 382 | if (!sdi) |
187b3582 JH |
383 | return 0; |
384 | ||
da686568 UH |
385 | ctx = fx2lafw_dev_new(); |
386 | ctx->profile = prof; | |
90282c82 | 387 | sdi->priv = ctx; |
be4b99e8 | 388 | dev_insts = g_slist_append(dev_insts, sdi); |
187b3582 | 389 | |
b1eeb67e JH |
390 | if (check_conf_profile(devlist[i])) { |
391 | /* Already has the firmware, so fix the new address. */ | |
7ae2f9d5 | 392 | sr_dbg("fx2lafw: Found an fx2lafw device."); |
b1eeb67e JH |
393 | sdi->status = SR_ST_INACTIVE; |
394 | ctx->usb = sr_usb_dev_inst_new | |
395 | (libusb_get_bus_number(devlist[i]), | |
396 | libusb_get_device_address(devlist[i]), NULL); | |
397 | } else { | |
f8b07fc6 | 398 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
da686568 | 399 | prof->firmware) == SR_OK) |
b1eeb67e JH |
400 | /* Remember when the firmware on this device was updated */ |
401 | g_get_current_time(&ctx->fw_updated); | |
402 | else | |
7ae2f9d5 UH |
403 | sr_err("fx2lafw: Firmware upload failed for " |
404 | "device %d.", devcnt); | |
b1eeb67e JH |
405 | ctx->usb = sr_usb_dev_inst_new |
406 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
407 | } | |
408 | ||
187b3582 JH |
409 | devcnt++; |
410 | } | |
411 | libusb_free_device_list(devlist, 1); | |
412 | ||
413 | return devcnt; | |
f302a082 JH |
414 | } |
415 | ||
772a0e61 | 416 | static int hw_dev_open(int dev_index) |
f302a082 | 417 | { |
43125c69 JH |
418 | GTimeVal cur_time; |
419 | struct sr_dev_inst *sdi; | |
772a0e61 | 420 | struct context *ctx; |
ebc34738 | 421 | int timediff, ret; |
43125c69 | 422 | |
772a0e61 | 423 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) |
43125c69 JH |
424 | return SR_ERR; |
425 | ctx = sdi->priv; | |
426 | ||
427 | /* | |
44dfd483 UH |
428 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms |
429 | * for the FX2 to renumerate. | |
43125c69 | 430 | */ |
ebc34738 | 431 | ret = 0; |
43125c69 | 432 | if (GTV_TO_MSEC(ctx->fw_updated) > 0) { |
7ae2f9d5 | 433 | sr_info("fx2lafw: Waiting for device to reset."); |
43125c69 JH |
434 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ |
435 | g_usleep(300 * 1000); | |
436 | timediff = 0; | |
437 | while (timediff < MAX_RENUM_DELAY) { | |
da686568 | 438 | if ((ret = fx2lafw_dev_open(dev_index)) == SR_OK) |
43125c69 JH |
439 | break; |
440 | g_usleep(100 * 1000); | |
441 | g_get_current_time(&cur_time); | |
442 | timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(ctx->fw_updated); | |
443 | } | |
7ae2f9d5 | 444 | sr_info("fx2lafw: Device came back after %d ms.", timediff); |
43125c69 | 445 | } else { |
da686568 | 446 | ret = fx2lafw_dev_open(dev_index); |
43125c69 JH |
447 | } |
448 | ||
ebc34738 | 449 | if (ret != SR_OK) { |
7ae2f9d5 | 450 | sr_err("fx2lafw: Unable to open device."); |
43125c69 JH |
451 | return SR_ERR; |
452 | } | |
453 | ctx = sdi->priv; | |
454 | ||
ebc34738 UH |
455 | ret = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE); |
456 | if (ret != 0) { | |
7ae2f9d5 | 457 | sr_err("fx2lafw: Unable to claim interface: %d.", ret); |
43125c69 JH |
458 | return SR_ERR; |
459 | } | |
460 | ||
f92994fd JH |
461 | if (ctx->cur_samplerate == 0) { |
462 | /* Samplerate hasn't been set; default to the slowest one. */ | |
463 | if (hw_dev_config_set(dev_index, SR_HWCAP_SAMPLERATE, | |
590b9f9a | 464 | &supported_samplerates[0]) == SR_ERR) |
f92994fd JH |
465 | return SR_ERR; |
466 | } | |
467 | ||
f302a082 JH |
468 | return SR_OK; |
469 | } | |
470 | ||
f1898235 | 471 | static int hw_dev_close(int dev_index) |
f302a082 | 472 | { |
f1898235 JH |
473 | struct sr_dev_inst *sdi; |
474 | ||
475 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) { | |
7ae2f9d5 | 476 | sr_err("fx2lafw: %s: sdi was NULL.", __func__); |
0abee507 | 477 | return SR_ERR_BUG; |
f1898235 JH |
478 | } |
479 | ||
480 | /* TODO */ | |
481 | close_dev(sdi); | |
482 | ||
f302a082 JH |
483 | return SR_OK; |
484 | } | |
485 | ||
486 | static int hw_cleanup(void) | |
487 | { | |
187b3582 JH |
488 | GSList *l; |
489 | struct sr_dev_inst *sdi; | |
772a0e61 | 490 | struct context *ctx; |
62bc70e4 | 491 | int ret = SR_OK; |
187b3582 | 492 | |
f4a9e5c0 | 493 | for (l = dev_insts; l; l = l->next) { |
62bc70e4 JH |
494 | if (!(sdi = l->data)) { |
495 | /* Log error, but continue cleaning up the rest. */ | |
7ae2f9d5 UH |
496 | sr_err("fx2lafw: %s: sdi was NULL, continuing.", |
497 | __func__); | |
62bc70e4 JH |
498 | ret = SR_ERR_BUG; |
499 | continue; | |
500 | } | |
501 | if (!(ctx = sdi->priv)) { | |
502 | /* Log error, but continue cleaning up the rest. */ | |
503 | sr_err("fx2lafw: %s: sdi->priv was NULL, continuing", | |
504 | __func__); | |
505 | ret = SR_ERR_BUG; | |
506 | continue; | |
507 | } | |
508 | close_dev(sdi); | |
187b3582 JH |
509 | sdi = l->data; |
510 | sr_dev_inst_free(sdi); | |
511 | } | |
512 | ||
62bc70e4 JH |
513 | g_slist_free(dev_insts); |
514 | dev_insts = NULL; | |
187b3582 | 515 | |
f4a9e5c0 | 516 | if (usb_context) |
187b3582 JH |
517 | libusb_exit(usb_context); |
518 | usb_context = NULL; | |
519 | ||
62bc70e4 | 520 | return ret; |
f302a082 JH |
521 | } |
522 | ||
772a0e61 | 523 | static void *hw_dev_info_get(int dev_index, int dev_info_id) |
f302a082 | 524 | { |
8b35f474 | 525 | struct sr_dev_inst *sdi; |
772a0e61 | 526 | struct context *ctx; |
8b35f474 | 527 | |
772a0e61 | 528 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) |
8b35f474 | 529 | return NULL; |
cdfdd711 | 530 | ctx = sdi->priv; |
8b35f474 | 531 | |
772a0e61 | 532 | switch (dev_info_id) { |
8b35f474 JH |
533 | case SR_DI_INST: |
534 | return sdi; | |
535 | case SR_DI_NUM_PROBES: | |
cdfdd711 | 536 | return GINT_TO_POINTER(ctx->profile->num_probes); |
8b35f474 | 537 | case SR_DI_PROBE_NAMES: |
da686568 | 538 | return probe_names; |
8b35f474 | 539 | case SR_DI_SAMPLERATES: |
590b9f9a | 540 | return &samplerates; |
8b35f474 JH |
541 | case SR_DI_TRIGGER_TYPES: |
542 | return TRIGGER_TYPES; | |
e3186647 JH |
543 | case SR_DI_CUR_SAMPLERATE: |
544 | return &ctx->cur_samplerate; | |
8b35f474 JH |
545 | } |
546 | ||
f302a082 JH |
547 | return NULL; |
548 | } | |
549 | ||
772a0e61 | 550 | static int hw_dev_status_get(int dev_index) |
f302a082 | 551 | { |
aae2fed6 | 552 | const struct sr_dev_inst *const sdi = |
772a0e61 | 553 | sr_dev_inst_get(dev_insts, dev_index); |
aae2fed6 JH |
554 | |
555 | if (!sdi) | |
556 | return SR_ST_NOT_FOUND; | |
557 | ||
558 | return sdi->status; | |
f302a082 JH |
559 | } |
560 | ||
561 | static int *hw_hwcap_get_all(void) | |
562 | { | |
da686568 | 563 | return hwcaps; |
f302a082 JH |
564 | } |
565 | ||
7cb621d4 | 566 | static int hw_dev_config_set(int dev_index, int hwcap, void *value) |
f302a082 | 567 | { |
7cb621d4 | 568 | struct sr_dev_inst *sdi; |
772a0e61 | 569 | struct context *ctx; |
7cb621d4 JH |
570 | int ret; |
571 | ||
572 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) | |
573 | return SR_ERR; | |
574 | ctx = sdi->priv; | |
575 | ||
e3186647 JH |
576 | if (hwcap == SR_HWCAP_SAMPLERATE) { |
577 | ctx->cur_samplerate = *(uint64_t *)value; | |
578 | ret = SR_OK; | |
579 | } else if (hwcap == SR_HWCAP_PROBECONFIG) { | |
6c6781b6 | 580 | ret = configure_probes(ctx, (GSList *) value); |
e3186647 | 581 | } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) { |
7cb621d4 JH |
582 | ctx->limit_samples = *(uint64_t *)value; |
583 | ret = SR_OK; | |
584 | } else { | |
585 | ret = SR_ERR; | |
586 | } | |
587 | ||
588 | return ret; | |
f302a082 JH |
589 | } |
590 | ||
1f9813eb | 591 | static int receive_data(int fd, int revents, void *cb_data) |
610dbb70 JH |
592 | { |
593 | struct timeval tv; | |
594 | ||
595 | /* Avoid compiler warnings. */ | |
596 | (void)fd; | |
597 | (void)revents; | |
1f9813eb | 598 | (void)cb_data; |
610dbb70 JH |
599 | |
600 | tv.tv_sec = tv.tv_usec = 0; | |
601 | libusb_handle_events_timeout(usb_context, &tv); | |
602 | ||
603 | return TRUE; | |
604 | } | |
605 | ||
2e526f4a | 606 | static void abort_acquisition(struct context *ctx) |
cb61e9f7 JH |
607 | { |
608 | ctx->num_samples = -1; | |
609 | } | |
610 | ||
3e6292b2 | 611 | static void finish_acquisition(struct context *ctx) |
2e526f4a JH |
612 | { |
613 | struct sr_datafeed_packet packet; | |
cb61e9f7 | 614 | int i; |
2e526f4a | 615 | |
cb61e9f7 | 616 | /* Terminate session */ |
2e526f4a JH |
617 | packet.type = SR_DF_END; |
618 | sr_session_send(ctx->session_dev_id, &packet); | |
619 | ||
cb61e9f7 JH |
620 | /* Remove fds from polling */ |
621 | const struct libusb_pollfd **const lupfd = | |
622 | libusb_get_pollfds(usb_context); | |
623 | for (i = 0; lupfd[i]; i++) | |
624 | sr_source_remove(lupfd[i]->fd); | |
625 | free(lupfd); /* NOT g_free()! */ | |
2e526f4a JH |
626 | } |
627 | ||
610dbb70 JH |
628 | static void receive_transfer(struct libusb_transfer *transfer) |
629 | { | |
630 | /* TODO: These statics have to move to the ctx struct. */ | |
610dbb70 JH |
631 | static int empty_transfer_count = 0; |
632 | struct sr_datafeed_packet packet; | |
633 | struct sr_datafeed_logic logic; | |
2e526f4a | 634 | struct context *ctx = transfer->user_data; |
6c6781b6 | 635 | int cur_buflen, trigger_offset, i; |
610dbb70 JH |
636 | unsigned char *cur_buf, *new_buf; |
637 | ||
610dbb70 JH |
638 | /* |
639 | * If acquisition has already ended, just free any queued up | |
640 | * transfer that come in. | |
641 | */ | |
2e526f4a | 642 | if (ctx->num_samples == -1) { |
610dbb70 JH |
643 | if (transfer) |
644 | libusb_free_transfer(transfer); | |
cb61e9f7 JH |
645 | |
646 | ctx->submitted_transfers--; | |
647 | if (ctx->submitted_transfers == 0) | |
648 | finish_acquisition(ctx); | |
649 | ||
610dbb70 JH |
650 | return; |
651 | } | |
652 | ||
7ae2f9d5 | 653 | sr_info("fx2lafw: receive_transfer(): status %d received %d bytes.", |
610dbb70 JH |
654 | transfer->status, transfer->actual_length); |
655 | ||
656 | /* Save incoming transfer before reusing the transfer struct. */ | |
657 | cur_buf = transfer->buffer; | |
658 | cur_buflen = transfer->actual_length; | |
610dbb70 JH |
659 | |
660 | /* Fire off a new request. */ | |
661 | if (!(new_buf = g_try_malloc(4096))) { | |
7ae2f9d5 | 662 | sr_err("fx2lafw: %s: new_buf malloc failed.", __func__); |
610dbb70 JH |
663 | return; /* TODO: SR_ERR_MALLOC */ |
664 | } | |
665 | ||
666 | transfer->buffer = new_buf; | |
667 | transfer->length = 4096; | |
668 | if (libusb_submit_transfer(transfer) != 0) { | |
669 | /* TODO: Stop session? */ | |
670 | /* TODO: Better error message. */ | |
7ae2f9d5 | 671 | sr_err("fx2lafw: %s: libusb_submit_transfer error.", __func__); |
610dbb70 JH |
672 | } |
673 | ||
674 | if (cur_buflen == 0) { | |
675 | empty_transfer_count++; | |
676 | if (empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
677 | /* | |
678 | * The FX2 gave up. End the acquisition, the frontend | |
679 | * will work out that the samplecount is short. | |
680 | */ | |
2e526f4a | 681 | abort_acquisition(ctx); |
610dbb70 JH |
682 | } |
683 | return; | |
684 | } else { | |
685 | empty_transfer_count = 0; | |
686 | } | |
687 | ||
6c6781b6 JH |
688 | trigger_offset = 0; |
689 | if (ctx->trigger_stage >= 0) { | |
690 | for (i = 0; i < cur_buflen; i++) { | |
691 | ||
692 | if ((cur_buf[i] & ctx->trigger_mask[ctx->trigger_stage]) == ctx->trigger_value[ctx->trigger_stage]) { | |
693 | /* Match on this trigger stage. */ | |
694 | ctx->trigger_buffer[ctx->trigger_stage] = cur_buf[i]; | |
695 | ctx->trigger_stage++; | |
696 | ||
697 | if (ctx->trigger_stage == NUM_TRIGGER_STAGES || ctx->trigger_mask[ctx->trigger_stage] == 0) { | |
698 | /* Match on all trigger stages, we're done. */ | |
699 | trigger_offset = i + 1; | |
700 | ||
701 | /* | |
702 | * TODO: Send pre-trigger buffer to session bus. | |
703 | * Tell the frontend we hit the trigger here. | |
704 | */ | |
705 | packet.type = SR_DF_TRIGGER; | |
706 | packet.payload = NULL; | |
707 | sr_session_send(ctx->session_dev_id, &packet); | |
708 | ||
709 | /* | |
710 | * Send the samples that triggered it, since we're | |
711 | * skipping past them. | |
712 | */ | |
713 | packet.type = SR_DF_LOGIC; | |
714 | packet.payload = &logic; | |
715 | logic.length = ctx->trigger_stage; | |
716 | logic.unitsize = 1; | |
717 | logic.data = ctx->trigger_buffer; | |
718 | sr_session_send(ctx->session_dev_id, &packet); | |
719 | ||
720 | ctx->trigger_stage = TRIGGER_FIRED; | |
721 | break; | |
722 | } | |
723 | return; | |
724 | } | |
725 | ||
726 | /* | |
727 | * We had a match before, but not in the next sample. However, we may | |
728 | * have a match on this stage in the next bit -- trigger on 0001 will | |
729 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
730 | * the next sample from the one that matched originally, which the | |
731 | * counter increment at the end of the loop takes care of. | |
732 | */ | |
733 | if (ctx->trigger_stage > 0) { | |
734 | i -= ctx->trigger_stage; | |
735 | if (i < -1) | |
736 | i = -1; /* Oops, went back past this buffer. */ | |
737 | /* Reset trigger stage. */ | |
738 | ctx->trigger_stage = 0; | |
739 | } | |
740 | } | |
741 | } | |
610dbb70 | 742 | |
6c6781b6 JH |
743 | if (ctx->trigger_stage == TRIGGER_FIRED) { |
744 | /* Send the incoming transfer to the session bus. */ | |
745 | packet.type = SR_DF_LOGIC; | |
746 | packet.payload = &logic; | |
747 | logic.length = cur_buflen - trigger_offset; | |
748 | logic.unitsize = 1; | |
749 | logic.data = cur_buf + trigger_offset; | |
750 | sr_session_send(ctx->session_dev_id, &packet); | |
751 | g_free(cur_buf); | |
752 | ||
753 | ctx->num_samples += cur_buflen; | |
754 | if (ctx->limit_samples && | |
755 | (unsigned int)ctx->num_samples > ctx->limit_samples) { | |
756 | abort_acquisition(ctx); | |
757 | } | |
758 | } else { | |
759 | /* | |
760 | * TODO: Buffer pre-trigger data in capture | |
761 | * ratio-sized buffer. | |
762 | */ | |
610dbb70 JH |
763 | } |
764 | } | |
765 | ||
3cd3a20b | 766 | static int hw_dev_acquisition_start(int dev_index, void *cb_data) |
f302a082 | 767 | { |
610dbb70 JH |
768 | struct sr_dev_inst *sdi; |
769 | struct sr_datafeed_packet *packet; | |
770 | struct sr_datafeed_header *header; | |
772a0e61 | 771 | struct context *ctx; |
610dbb70 JH |
772 | struct libusb_transfer *transfer; |
773 | const struct libusb_pollfd **lupfd; | |
ebc34738 | 774 | int ret, size, i; |
610dbb70 JH |
775 | unsigned char *buf; |
776 | ||
777 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) | |
778 | return SR_ERR; | |
779 | ctx = sdi->priv; | |
3cd3a20b | 780 | ctx->session_dev_id = cb_data; |
2e526f4a | 781 | ctx->num_samples = 0; |
610dbb70 JH |
782 | |
783 | if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { | |
7ae2f9d5 | 784 | sr_err("fx2lafw: %s: packet malloc failed.", __func__); |
610dbb70 JH |
785 | return SR_ERR_MALLOC; |
786 | } | |
787 | ||
788 | if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) { | |
7ae2f9d5 | 789 | sr_err("fx2lafw: %s: header malloc failed.", __func__); |
610dbb70 JH |
790 | return SR_ERR_MALLOC; |
791 | } | |
792 | ||
793 | /* Start with 2K transfer, subsequently increased to 4K. */ | |
794 | size = 2048; | |
795 | for (i = 0; i < NUM_SIMUL_TRANSFERS; i++) { | |
796 | if (!(buf = g_try_malloc(size))) { | |
7ae2f9d5 | 797 | sr_err("fx2lafw: %s: buf malloc failed.", __func__); |
610dbb70 JH |
798 | return SR_ERR_MALLOC; |
799 | } | |
800 | transfer = libusb_alloc_transfer(0); | |
801 | libusb_fill_bulk_transfer(transfer, ctx->usb->devhdl, | |
802 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
803 | receive_transfer, ctx, 40); | |
804 | if (libusb_submit_transfer(transfer) != 0) { | |
805 | /* TODO: Free them all. */ | |
806 | libusb_free_transfer(transfer); | |
807 | g_free(buf); | |
808 | return SR_ERR; | |
809 | } | |
cb61e9f7 JH |
810 | |
811 | ctx->submitted_transfers++; | |
610dbb70 JH |
812 | size = 4096; |
813 | } | |
814 | ||
815 | lupfd = libusb_get_pollfds(usb_context); | |
816 | for (i = 0; lupfd[i]; i++) | |
817 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, | |
818 | 40, receive_data, NULL); | |
819 | free(lupfd); /* NOT g_free()! */ | |
820 | ||
821 | packet->type = SR_DF_HEADER; | |
822 | packet->payload = header; | |
823 | header->feed_version = 1; | |
824 | gettimeofday(&header->starttime, NULL); | |
e3186647 | 825 | header->samplerate = ctx->cur_samplerate; |
610dbb70 | 826 | header->num_logic_probes = ctx->profile->num_probes; |
c8f2c9dd | 827 | sr_session_send(cb_data, packet); |
610dbb70 JH |
828 | g_free(header); |
829 | g_free(packet); | |
830 | ||
ebc34738 | 831 | if ((ret = command_start_acquisition (ctx->usb->devhdl, |
017375d1 | 832 | ctx->cur_samplerate)) != SR_OK) { |
ebc34738 | 833 | return ret; |
017375d1 JH |
834 | } |
835 | ||
f302a082 JH |
836 | return SR_OK; |
837 | } | |
838 | ||
3cd3a20b | 839 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ |
c8f2c9dd | 840 | static int hw_dev_acquisition_stop(int dev_index, void *cb_data) |
f302a082 | 841 | { |
2e526f4a | 842 | struct sr_dev_inst *sdi; |
5da93902 | 843 | |
f4a9e5c0 | 844 | /* Avoid compiler warnings. */ |
2e526f4a | 845 | (void)cb_data; |
5da93902 | 846 | |
2e526f4a JH |
847 | if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) |
848 | return SR_ERR; | |
849 | ||
850 | abort_acquisition(sdi->priv); | |
5da93902 | 851 | |
f302a082 JH |
852 | return SR_OK; |
853 | } | |
854 | ||
c09f0b57 | 855 | SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { |
f302a082 | 856 | .name = "fx2lafw", |
2e7cb004 | 857 | .longname = "fx2lafw (generic driver for FX2 based LAs)", |
f302a082 JH |
858 | .api_version = 1, |
859 | .init = hw_init, | |
860 | .cleanup = hw_cleanup, | |
861 | .dev_open = hw_dev_open, | |
862 | .dev_close = hw_dev_close, | |
863 | .dev_info_get = hw_dev_info_get, | |
864 | .dev_status_get = hw_dev_status_get, | |
865 | .hwcap_get_all = hw_hwcap_get_all, | |
866 | .dev_config_set = hw_dev_config_set, | |
867 | .dev_acquisition_start = hw_dev_acquisition_start, | |
868 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
869 | }; |