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Commit | Line | Data |
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a1bb33af UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
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 | ||
22b02383 | 20 | #include "config.h" |
a1bb33af UH |
21 | #include <stdio.h> |
22 | #include <stdlib.h> | |
23 | #include <sys/time.h> | |
24 | #include <inttypes.h> | |
25 | #include <glib.h> | |
26 | #include <libusb.h> | |
b7f09cf8 UH |
27 | #include "sigrok.h" |
28 | #include "sigrok-internal.h" | |
6d754b6d | 29 | #include "saleae-logic.h" |
a1bb33af | 30 | |
6d754b6d | 31 | static struct fx2_profile supported_fx2[] = { |
e10d6e32 BV |
32 | /* Saleae Logic */ |
33 | { 0x0925, 0x3881, 0x0925, 0x3881, "Saleae", "Logic", NULL, 8 }, | |
34 | /* default Cypress FX2 without EEPROM */ | |
35 | { 0x04b4, 0x8613, 0x0925, 0x3881, "Cypress", "FX2", NULL, 16 }, | |
6d754b6d | 36 | { 0, 0, 0, 0, 0, 0, 0, 0 } |
e10d6e32 BV |
37 | }; |
38 | ||
a1bb33af | 39 | static int capabilities[] = { |
5a2326a7 UH |
40 | SR_HWCAP_LOGIC_ANALYZER, |
41 | SR_HWCAP_SAMPLERATE, | |
a1bb33af | 42 | |
6f5f21f9 | 43 | /* These are really implemented in the driver, not the hardware. */ |
5a2326a7 UH |
44 | SR_HWCAP_LIMIT_SAMPLES, |
45 | SR_HWCAP_CONTINUOUS, | |
6f5f21f9 | 46 | 0, |
a1bb33af UH |
47 | }; |
48 | ||
464d12c7 KS |
49 | static const char* probe_names[] = { |
50 | "0", | |
51 | "1", | |
52 | "2", | |
53 | "3", | |
54 | "4", | |
55 | "5", | |
56 | "6", | |
57 | "7", | |
58 | "8", | |
59 | "9", | |
60 | "10", | |
61 | "11", | |
62 | "12", | |
63 | "13", | |
64 | "14", | |
65 | "15", | |
66 | NULL, | |
67 | }; | |
68 | ||
a1bb33af | 69 | static uint64_t supported_samplerates[] = { |
59df0c77 UH |
70 | SR_KHZ(200), |
71 | SR_KHZ(250), | |
72 | SR_KHZ(500), | |
73 | SR_MHZ(1), | |
74 | SR_MHZ(2), | |
75 | SR_MHZ(4), | |
76 | SR_MHZ(8), | |
77 | SR_MHZ(12), | |
78 | SR_MHZ(16), | |
79 | SR_MHZ(24), | |
6f5f21f9 | 80 | 0, |
a1bb33af UH |
81 | }; |
82 | ||
60679b18 | 83 | static struct sr_samplerates samplerates = { |
59df0c77 UH |
84 | SR_KHZ(200), |
85 | SR_MHZ(24), | |
c9140419 | 86 | SR_HZ(0), |
6f5f21f9 | 87 | supported_samplerates, |
a1bb33af UH |
88 | }; |
89 | ||
6d754b6d BV |
90 | /* List of struct sr_device_instance, maintained by opendev()/closedev(). */ |
91 | static GSList *device_instances = NULL; | |
92 | static libusb_context *usb_context = NULL; | |
a1bb33af | 93 | |
a1bb33af | 94 | static int hw_set_configuration(int device_index, int capability, void *value); |
9c48090a | 95 | static void hw_stop_acquisition(int device_index, gpointer session_device_id); |
a1bb33af | 96 | |
28fc6de0 UH |
97 | /** |
98 | * Check the USB configuration to determine if this is a Saleae Logic. | |
99 | * | |
100 | * @return 1 if the device's configuration profile match the Logic firmware's | |
101 | * configuration, 0 otherwise. | |
a1bb33af | 102 | */ |
e5d1717e | 103 | static int check_conf_profile(libusb_device *dev) |
a1bb33af UH |
104 | { |
105 | struct libusb_device_descriptor des; | |
6f5f21f9 | 106 | struct libusb_config_descriptor *conf_dsc = NULL; |
a1bb33af | 107 | const struct libusb_interface_descriptor *intf_dsc; |
6f5f21f9 | 108 | int ret = -1; |
a1bb33af | 109 | |
6f5f21f9 UH |
110 | while (ret == -1) { |
111 | /* Assume it's not a Saleae Logic unless proven wrong. */ | |
a1bb33af UH |
112 | ret = 0; |
113 | ||
6f5f21f9 | 114 | if (libusb_get_device_descriptor(dev, &des) != 0) |
a1bb33af UH |
115 | break; |
116 | ||
6f5f21f9 UH |
117 | if (des.bNumConfigurations != 1) |
118 | /* Need exactly 1 configuration. */ | |
a1bb33af UH |
119 | break; |
120 | ||
6f5f21f9 | 121 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) |
a1bb33af UH |
122 | break; |
123 | ||
6f5f21f9 UH |
124 | if (conf_dsc->bNumInterfaces != 1) |
125 | /* Need exactly 1 interface. */ | |
a1bb33af UH |
126 | break; |
127 | ||
6f5f21f9 UH |
128 | if (conf_dsc->interface[0].num_altsetting != 1) |
129 | /* Need just one alternate setting. */ | |
a1bb33af UH |
130 | break; |
131 | ||
132 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
6f5f21f9 UH |
133 | if (intf_dsc->bNumEndpoints != 2) |
134 | /* Need 2 endpoints. */ | |
a1bb33af UH |
135 | break; |
136 | ||
6f5f21f9 UH |
137 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != |
138 | (1 | LIBUSB_ENDPOINT_OUT)) | |
139 | /* First endpoint should be 1 (outbound). */ | |
a1bb33af UH |
140 | break; |
141 | ||
6f5f21f9 UH |
142 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != |
143 | (2 | LIBUSB_ENDPOINT_IN)) | |
144 | /* First endpoint should be 2 (inbound). */ | |
a1bb33af UH |
145 | break; |
146 | ||
6f5f21f9 | 147 | /* If we made it here, it must be a Saleae Logic. */ |
a1bb33af UH |
148 | ret = 1; |
149 | } | |
6f5f21f9 UH |
150 | |
151 | if (conf_dsc) | |
a1bb33af UH |
152 | libusb_free_config_descriptor(conf_dsc); |
153 | ||
154 | return ret; | |
155 | } | |
156 | ||
6d754b6d | 157 | static int sl_open_device(int device_index) |
a1bb33af | 158 | { |
a1bb33af UH |
159 | libusb_device **devlist; |
160 | struct libusb_device_descriptor des; | |
e10d6e32 | 161 | struct sr_device_instance *sdi; |
6d754b6d | 162 | struct fx2_device *fx2; |
a1bb33af UH |
163 | int err, skip, i; |
164 | ||
d32d961d | 165 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
6d754b6d BV |
166 | return SR_ERR; |
167 | fx2 = sdi->priv; | |
a1bb33af | 168 | |
e10d6e32 BV |
169 | if (sdi->status == SR_ST_ACTIVE) |
170 | /* already in use */ | |
6d754b6d | 171 | return SR_ERR; |
e10d6e32 BV |
172 | |
173 | skip = 0; | |
a1bb33af | 174 | libusb_get_device_list(usb_context, &devlist); |
e10d6e32 BV |
175 | for (i = 0; devlist[i]; i++) { |
176 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
e53c830f | 177 | sr_warn("failed to get device descriptor: %d", err); |
e10d6e32 | 178 | continue; |
a1bb33af | 179 | } |
e10d6e32 | 180 | |
6d754b6d | 181 | if (des.idVendor != fx2->profile->fw_vid || des.idProduct != fx2->profile->fw_pid) |
e10d6e32 BV |
182 | continue; |
183 | ||
184 | if (sdi->status == SR_ST_INITIALIZING) { | |
185 | if (skip != device_index) { | |
186 | /* Skip devices of this type that aren't the one we want. */ | |
187 | skip += 1; | |
188 | continue; | |
189 | } | |
190 | } else if (sdi->status == SR_ST_INACTIVE) { | |
191 | /* | |
192 | * This device is fully enumerated, so we need to find this | |
193 | * device by vendor, product, bus and address. | |
194 | */ | |
195 | if (libusb_get_bus_number(devlist[i]) != sdi->usb->bus | |
196 | || libusb_get_device_address(devlist[i]) != sdi->usb->address) | |
197 | /* this is not the one */ | |
198 | continue; | |
199 | } | |
200 | ||
201 | if (!(err = libusb_open(devlist[i], &sdi->usb->devhdl))) { | |
202 | if (sdi->usb->address == 0xff) | |
203 | /* | |
204 | * first time we touch this device after firmware upload, | |
205 | * so we don't know the address yet. | |
206 | */ | |
207 | sdi->usb->address = libusb_get_device_address(devlist[i]); | |
208 | ||
209 | sdi->status = SR_ST_ACTIVE; | |
e53c830f | 210 | sr_info("saleae: opened device %d on %d.%d interface %d", |
e10d6e32 BV |
211 | sdi->index, sdi->usb->bus, |
212 | sdi->usb->address, USB_INTERFACE); | |
213 | } else { | |
e53c830f | 214 | sr_warn("failed to open device: %d", err); |
a1bb33af | 215 | } |
6d754b6d BV |
216 | |
217 | /* if we made it here, we handled the device one way or another */ | |
218 | break; | |
a1bb33af UH |
219 | } |
220 | libusb_free_device_list(devlist, 1); | |
221 | ||
6d754b6d BV |
222 | if (sdi->status != SR_ST_ACTIVE) |
223 | return SR_ERR; | |
a1bb33af | 224 | |
6d754b6d | 225 | return SR_OK; |
a1bb33af UH |
226 | } |
227 | ||
a00ba012 | 228 | static void close_device(struct sr_device_instance *sdi) |
a1bb33af | 229 | { |
f6958dab UH |
230 | if (sdi->usb->devhdl == NULL) |
231 | return; | |
232 | ||
b08024a8 UH |
233 | sr_info("saleae: closing device %d on %d.%d interface %d", sdi->index, |
234 | sdi->usb->bus, sdi->usb->address, USB_INTERFACE); | |
f6958dab UH |
235 | libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE); |
236 | libusb_close(sdi->usb->devhdl); | |
237 | sdi->usb->devhdl = NULL; | |
5a2326a7 | 238 | sdi->status = SR_ST_INACTIVE; |
a1bb33af UH |
239 | } |
240 | ||
6d754b6d | 241 | static int configure_probes(struct fx2_device *fx2, GSList *probes) |
a1bb33af | 242 | { |
1afe8989 | 243 | struct sr_probe *probe; |
a1bb33af UH |
244 | GSList *l; |
245 | int probe_bit, stage, i; | |
246 | char *tc; | |
247 | ||
6d754b6d | 248 | fx2->probe_mask = 0; |
6f5f21f9 | 249 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
6d754b6d BV |
250 | fx2->trigger_mask[i] = 0; |
251 | fx2->trigger_value[i] = 0; | |
a1bb33af UH |
252 | } |
253 | ||
254 | stage = -1; | |
6f5f21f9 | 255 | for (l = probes; l; l = l->next) { |
1afe8989 | 256 | probe = (struct sr_probe *)l->data; |
6f5f21f9 | 257 | if (probe->enabled == FALSE) |
a1bb33af UH |
258 | continue; |
259 | probe_bit = 1 << (probe->index - 1); | |
6d754b6d | 260 | fx2->probe_mask |= probe_bit; |
989938f6 UH |
261 | if (!(probe->trigger)) |
262 | continue; | |
263 | ||
264 | stage = 0; | |
265 | for (tc = probe->trigger; *tc; tc++) { | |
6d754b6d | 266 | fx2->trigger_mask[stage] |= probe_bit; |
989938f6 | 267 | if (*tc == '1') |
6d754b6d | 268 | fx2->trigger_value[stage] |= probe_bit; |
989938f6 UH |
269 | stage++; |
270 | if (stage > NUM_TRIGGER_STAGES) | |
e46b8fb1 | 271 | return SR_ERR; |
a1bb33af UH |
272 | } |
273 | } | |
274 | ||
6f5f21f9 UH |
275 | if (stage == -1) |
276 | /* | |
277 | * We didn't configure any triggers, make sure acquisition | |
278 | * doesn't wait for any. | |
279 | */ | |
6d754b6d | 280 | fx2->trigger_stage = TRIGGER_FIRED; |
a1bb33af | 281 | else |
6d754b6d | 282 | fx2->trigger_stage = 0; |
a1bb33af | 283 | |
e46b8fb1 | 284 | return SR_OK; |
a1bb33af UH |
285 | } |
286 | ||
6d754b6d BV |
287 | static struct fx2_device *fx2_device_new(void) |
288 | { | |
289 | struct fx2_device *fx2; | |
290 | ||
291 | if (!(fx2 = g_try_malloc0(sizeof(struct fx2_device)))) { | |
292 | sr_err("saleae: %s: saleae malloc failed", __func__); | |
293 | return NULL; | |
294 | } | |
295 | fx2->trigger_stage = TRIGGER_FIRED; | |
296 | ||
297 | return fx2; | |
298 | } | |
299 | ||
300 | ||
a1bb33af UH |
301 | /* |
302 | * API callbacks | |
303 | */ | |
304 | ||
54ac5277 | 305 | static int hw_init(const char *deviceinfo) |
a1bb33af | 306 | { |
a00ba012 | 307 | struct sr_device_instance *sdi; |
a1bb33af | 308 | struct libusb_device_descriptor des; |
6d754b6d BV |
309 | struct fx2_profile *fx2_prof; |
310 | struct fx2_device *fx2; | |
a1bb33af | 311 | libusb_device **devlist; |
e10d6e32 | 312 | int err, devcnt, i, j; |
a1bb33af | 313 | |
17e1afcb | 314 | /* Avoid compiler warnings. */ |
cb93f8a9 | 315 | (void)deviceinfo; |
afc8e4de | 316 | |
6f5f21f9 | 317 | if (libusb_init(&usb_context) != 0) { |
b08024a8 | 318 | sr_warn("Failed to initialize USB."); |
a1bb33af UH |
319 | return 0; |
320 | } | |
a1bb33af | 321 | |
6f5f21f9 | 322 | /* Find all Saleae Logic devices and upload firmware to all of them. */ |
a1bb33af UH |
323 | devcnt = 0; |
324 | libusb_get_device_list(usb_context, &devlist); | |
6f5f21f9 | 325 | for (i = 0; devlist[i]; i++) { |
6d754b6d | 326 | fx2_prof = NULL; |
a1bb33af | 327 | err = libusb_get_device_descriptor(devlist[i], &des); |
6f5f21f9 | 328 | if (err != 0) { |
b08024a8 | 329 | sr_warn("failed to get device descriptor: %d", err); |
a1bb33af UH |
330 | continue; |
331 | } | |
332 | ||
e10d6e32 BV |
333 | for (j = 0; supported_fx2[j].orig_vid; j++) { |
334 | if (des.idVendor == supported_fx2[j].orig_vid | |
335 | && des.idProduct == supported_fx2[j].orig_pid) { | |
6d754b6d | 336 | fx2_prof = &supported_fx2[j]; |
e10d6e32 BV |
337 | break; |
338 | } | |
339 | } | |
6d754b6d | 340 | if (!fx2_prof) |
e10d6e32 BV |
341 | /* not a supported VID/PID */ |
342 | continue; | |
a1bb33af | 343 | |
5a2326a7 | 344 | sdi = sr_device_instance_new(devcnt, SR_ST_INITIALIZING, |
6d754b6d | 345 | fx2_prof->vendor, fx2_prof->model, fx2_prof->model_version); |
f6958dab UH |
346 | if (!sdi) |
347 | return 0; | |
6d754b6d BV |
348 | fx2 = fx2_device_new(); |
349 | fx2->profile = fx2_prof; | |
350 | sdi->priv = fx2; | |
f6958dab | 351 | device_instances = g_slist_append(device_instances, sdi); |
6f5f21f9 | 352 | |
6d754b6d | 353 | if (check_conf_profile(devlist[i])) { |
f6958dab | 354 | /* Already has the firmware, so fix the new address. */ |
e10d6e32 | 355 | sdi->status = SR_ST_INACTIVE; |
6c290072 | 356 | sdi->usb = sr_usb_device_instance_new |
f6958dab | 357 | (libusb_get_bus_number(devlist[i]), |
fed16f06 | 358 | libusb_get_device_address(devlist[i]), NULL); |
6d754b6d BV |
359 | } else { |
360 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, FIRMWARE) == SR_OK) | |
361 | /* Remember when the firmware on this device was updated */ | |
362 | g_get_current_time(&fx2->fw_updated); | |
363 | else | |
364 | sr_warn("firmware upload failed for device %d", devcnt); | |
365 | sdi->usb = sr_usb_device_instance_new | |
366 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
a1bb33af | 367 | } |
f6958dab | 368 | devcnt++; |
a1bb33af UH |
369 | } |
370 | libusb_free_device_list(devlist, 1); | |
371 | ||
372 | return devcnt; | |
373 | } | |
374 | ||
a1bb33af UH |
375 | static int hw_opendev(int device_index) |
376 | { | |
377 | GTimeVal cur_time; | |
a00ba012 | 378 | struct sr_device_instance *sdi; |
6d754b6d | 379 | struct fx2_device *fx2; |
a1bb33af | 380 | int timediff, err; |
e10d6e32 | 381 | |
6d754b6d BV |
382 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
383 | return SR_ERR; | |
384 | fx2 = sdi->priv; | |
385 | ||
e10d6e32 BV |
386 | /* |
387 | * if the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms | |
388 | * for the FX2 to renumerate | |
389 | */ | |
6d754b6d BV |
390 | err = 0; |
391 | if (GTV_TO_MSEC(fx2->fw_updated) > 0) { | |
e53c830f | 392 | sr_info("saleae: waiting for device to reset"); |
e10d6e32 BV |
393 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ |
394 | g_usleep(300*1000); | |
395 | timediff = 0; | |
396 | while (timediff < MAX_RENUM_DELAY) { | |
6d754b6d | 397 | if ((err = sl_open_device(device_index)) == SR_OK) |
e10d6e32 BV |
398 | break; |
399 | g_usleep(100*1000); | |
400 | g_get_current_time(&cur_time); | |
6d754b6d | 401 | timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(fx2->fw_updated); |
a1bb33af | 402 | } |
e53c830f | 403 | sr_info("saleae: device came back after %d ms", timediff); |
e10d6e32 | 404 | } else { |
6d754b6d | 405 | err = sl_open_device(device_index); |
a1bb33af UH |
406 | } |
407 | ||
6d754b6d | 408 | if (err != SR_OK) { |
b08024a8 | 409 | sr_warn("unable to open device"); |
e46b8fb1 | 410 | return SR_ERR; |
a1bb33af | 411 | } |
6d754b6d | 412 | fx2 = sdi->priv; |
a1bb33af UH |
413 | |
414 | err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE); | |
6f5f21f9 | 415 | if (err != 0) { |
b08024a8 | 416 | sr_warn("Unable to claim interface: %d", err); |
e46b8fb1 | 417 | return SR_ERR; |
a1bb33af UH |
418 | } |
419 | ||
6d754b6d | 420 | if (fx2->cur_samplerate == 0) { |
6f5f21f9 | 421 | /* Samplerate hasn't been set; default to the slowest one. */ |
5a2326a7 | 422 | if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE, |
e46b8fb1 UH |
423 | &supported_samplerates[0]) == SR_ERR) |
424 | return SR_ERR; | |
a1bb33af UH |
425 | } |
426 | ||
e46b8fb1 | 427 | return SR_OK; |
a1bb33af UH |
428 | } |
429 | ||
697785d1 | 430 | static int hw_closedev(int device_index) |
a1bb33af | 431 | { |
a00ba012 | 432 | struct sr_device_instance *sdi; |
a1bb33af | 433 | |
697785d1 UH |
434 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { |
435 | sr_err("logic: %s: sdi was NULL", __func__); | |
436 | return SR_ERR; /* TODO: SR_ERR_ARG? */ | |
437 | } | |
438 | ||
439 | /* TODO */ | |
440 | close_device(sdi); | |
441 | ||
442 | return SR_OK; | |
a1bb33af UH |
443 | } |
444 | ||
a1bb33af UH |
445 | static void hw_cleanup(void) |
446 | { | |
447 | GSList *l; | |
448 | ||
6f5f21f9 UH |
449 | /* Properly close all devices... */ |
450 | for (l = device_instances; l; l = l->next) | |
a00ba012 | 451 | close_device((struct sr_device_instance *)l->data); |
a1bb33af | 452 | |
6f5f21f9 UH |
453 | /* ...and free all their memory. */ |
454 | for (l = device_instances; l; l = l->next) | |
a1bb33af UH |
455 | g_free(l->data); |
456 | g_slist_free(device_instances); | |
457 | device_instances = NULL; | |
458 | ||
6f5f21f9 | 459 | if (usb_context) |
a1bb33af UH |
460 | libusb_exit(usb_context); |
461 | usb_context = NULL; | |
a1bb33af UH |
462 | } |
463 | ||
a1bb33af UH |
464 | static void *hw_get_device_info(int device_index, int device_info_id) |
465 | { | |
a00ba012 | 466 | struct sr_device_instance *sdi; |
6d754b6d | 467 | struct fx2_device *fx2; |
6f5f21f9 | 468 | void *info = NULL; |
a1bb33af | 469 | |
d32d961d | 470 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af | 471 | return NULL; |
6d754b6d | 472 | fx2 = sdi->priv; |
a1bb33af | 473 | |
6f5f21f9 | 474 | switch (device_info_id) { |
5a2326a7 | 475 | case SR_DI_INSTANCE: |
a1bb33af UH |
476 | info = sdi; |
477 | break; | |
5a2326a7 | 478 | case SR_DI_NUM_PROBES: |
6d754b6d | 479 | info = GINT_TO_POINTER(fx2->profile->num_probes); |
a1bb33af | 480 | break; |
464d12c7 KS |
481 | case SR_DI_PROBE_NAMES: |
482 | info = probe_names; | |
483 | break; | |
5a2326a7 | 484 | case SR_DI_SAMPLERATES: |
a1bb33af UH |
485 | info = &samplerates; |
486 | break; | |
5a2326a7 | 487 | case SR_DI_TRIGGER_TYPES: |
a1bb33af UH |
488 | info = TRIGGER_TYPES; |
489 | break; | |
5a2326a7 | 490 | case SR_DI_CUR_SAMPLERATE: |
6d754b6d | 491 | info = &fx2->cur_samplerate; |
a1bb33af UH |
492 | break; |
493 | } | |
494 | ||
495 | return info; | |
496 | } | |
497 | ||
a1bb33af UH |
498 | static int hw_get_status(int device_index) |
499 | { | |
a00ba012 | 500 | struct sr_device_instance *sdi; |
a1bb33af | 501 | |
d32d961d | 502 | sdi = sr_get_device_instance(device_instances, device_index); |
6f5f21f9 | 503 | if (sdi) |
a1bb33af UH |
504 | return sdi->status; |
505 | else | |
5a2326a7 | 506 | return SR_ST_NOT_FOUND; |
a1bb33af UH |
507 | } |
508 | ||
a1bb33af UH |
509 | static int *hw_get_capabilities(void) |
510 | { | |
a1bb33af UH |
511 | return capabilities; |
512 | } | |
513 | ||
a00ba012 | 514 | static int set_configuration_samplerate(struct sr_device_instance *sdi, |
6f5f21f9 | 515 | uint64_t samplerate) |
a1bb33af | 516 | { |
6d754b6d | 517 | struct fx2_device *fx2; |
a1bb33af UH |
518 | uint8_t divider; |
519 | int ret, result, i; | |
520 | unsigned char buf[2]; | |
521 | ||
6d754b6d | 522 | fx2 = sdi->priv; |
6f5f21f9 UH |
523 | for (i = 0; supported_samplerates[i]; i++) { |
524 | if (supported_samplerates[i] == samplerate) | |
a1bb33af UH |
525 | break; |
526 | } | |
6f5f21f9 | 527 | if (supported_samplerates[i] == 0) |
e46b8fb1 | 528 | return SR_ERR_SAMPLERATE; |
a1bb33af | 529 | |
eee4890f | 530 | divider = (uint8_t) (48 / (samplerate / 1000000.0)) - 1; |
a1bb33af | 531 | |
b08024a8 UH |
532 | sr_info("saleae: setting samplerate to %" PRIu64 " Hz (divider %d)", |
533 | samplerate, divider); | |
a1bb33af UH |
534 | buf[0] = 0x01; |
535 | buf[1] = divider; | |
6f5f21f9 UH |
536 | ret = libusb_bulk_transfer(sdi->usb->devhdl, 1 | LIBUSB_ENDPOINT_OUT, |
537 | buf, 2, &result, 500); | |
538 | if (ret != 0) { | |
b08024a8 | 539 | sr_warn("failed to set samplerate: %d", ret); |
e46b8fb1 | 540 | return SR_ERR; |
a1bb33af | 541 | } |
6d754b6d | 542 | fx2->cur_samplerate = samplerate; |
9c939c51 | 543 | fx2->period_ps = 1000000000000 / samplerate; |
a1bb33af | 544 | |
e46b8fb1 | 545 | return SR_OK; |
a1bb33af UH |
546 | } |
547 | ||
a1bb33af UH |
548 | static int hw_set_configuration(int device_index, int capability, void *value) |
549 | { | |
a00ba012 | 550 | struct sr_device_instance *sdi; |
6d754b6d | 551 | struct fx2_device *fx2; |
a1bb33af UH |
552 | int ret; |
553 | uint64_t *tmp_u64; | |
554 | ||
d32d961d | 555 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 556 | return SR_ERR; |
6d754b6d | 557 | fx2 = sdi->priv; |
a1bb33af | 558 | |
5a2326a7 | 559 | if (capability == SR_HWCAP_SAMPLERATE) { |
a1bb33af UH |
560 | tmp_u64 = value; |
561 | ret = set_configuration_samplerate(sdi, *tmp_u64); | |
5a2326a7 | 562 | } else if (capability == SR_HWCAP_PROBECONFIG) { |
6d754b6d | 563 | ret = configure_probes(fx2, (GSList *) value); |
5a2326a7 | 564 | } else if (capability == SR_HWCAP_LIMIT_SAMPLES) { |
2458ea65 | 565 | tmp_u64 = value; |
6d754b6d | 566 | fx2->limit_samples = *tmp_u64; |
e46b8fb1 | 567 | ret = SR_OK; |
6f5f21f9 | 568 | } else { |
e46b8fb1 | 569 | ret = SR_ERR; |
6f5f21f9 | 570 | } |
a1bb33af UH |
571 | |
572 | return ret; | |
573 | } | |
574 | ||
a1bb33af UH |
575 | static int receive_data(int fd, int revents, void *user_data) |
576 | { | |
577 | struct timeval tv; | |
578 | ||
17e1afcb | 579 | /* Avoid compiler warnings. */ |
cb93f8a9 UH |
580 | (void)fd; |
581 | (void)revents; | |
582 | (void)user_data; | |
afc8e4de | 583 | |
a1bb33af UH |
584 | tv.tv_sec = tv.tv_usec = 0; |
585 | libusb_handle_events_timeout(usb_context, &tv); | |
586 | ||
587 | return TRUE; | |
588 | } | |
589 | ||
a0ecd83b | 590 | static void receive_transfer(struct libusb_transfer *transfer) |
a1bb33af | 591 | { |
9c939c51 | 592 | /* TODO: these statics have to move to fx2_device struct */ |
a1bb33af UH |
593 | static int num_samples = 0; |
594 | static int empty_transfer_count = 0; | |
b9c735a2 | 595 | struct sr_datafeed_packet packet; |
9c939c51 | 596 | struct sr_datafeed_logic logic; |
6d754b6d | 597 | struct fx2_device *fx2; |
a1bb33af UH |
598 | int cur_buflen, trigger_offset, i; |
599 | unsigned char *cur_buf, *new_buf; | |
600 | ||
f6958dab UH |
601 | /* hw_stop_acquisition() is telling us to stop. */ |
602 | if (transfer == NULL) | |
a1bb33af | 603 | num_samples = -1; |
a1bb33af | 604 | |
f6958dab UH |
605 | /* |
606 | * If acquisition has already ended, just free any queued up | |
607 | * transfer that come in. | |
608 | */ | |
6f5f21f9 | 609 | if (num_samples == -1) { |
9c48090a BV |
610 | if (transfer) |
611 | libusb_free_transfer(transfer); | |
f6958dab UH |
612 | return; |
613 | } | |
a1bb33af | 614 | |
b08024a8 UH |
615 | sr_info("saleae: receive_transfer(): status %d received %d bytes", |
616 | transfer->status, transfer->actual_length); | |
f6958dab UH |
617 | |
618 | /* Save incoming transfer before reusing the transfer struct. */ | |
619 | cur_buf = transfer->buffer; | |
620 | cur_buflen = transfer->actual_length; | |
6d754b6d | 621 | fx2 = transfer->user_data; |
f6958dab UH |
622 | |
623 | /* Fire off a new request. */ | |
b53738ba UH |
624 | if (!(new_buf = g_try_malloc(4096))) { |
625 | sr_err("saleae: %s: new_buf malloc failed", __func__); | |
626 | // return SR_ERR_MALLOC; | |
627 | return; /* FIXME */ | |
628 | } | |
629 | ||
f6958dab UH |
630 | transfer->buffer = new_buf; |
631 | transfer->length = 4096; | |
632 | if (libusb_submit_transfer(transfer) != 0) { | |
633 | /* TODO: Stop session? */ | |
b08024a8 | 634 | sr_warn("eek"); |
f6958dab UH |
635 | } |
636 | ||
637 | if (cur_buflen == 0) { | |
638 | empty_transfer_count++; | |
639 | if (empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
640 | /* | |
641 | * The FX2 gave up. End the acquisition, the frontend | |
642 | * will work out that the samplecount is short. | |
643 | */ | |
6d754b6d | 644 | hw_stop_acquisition(-1, fx2->session_data); |
6f5f21f9 | 645 | } |
f6958dab UH |
646 | return; |
647 | } else { | |
648 | empty_transfer_count = 0; | |
649 | } | |
a1bb33af | 650 | |
f6958dab | 651 | trigger_offset = 0; |
6d754b6d | 652 | if (fx2->trigger_stage >= 0) { |
f6958dab | 653 | for (i = 0; i < cur_buflen; i++) { |
b5698bd7 | 654 | |
6d754b6d | 655 | if ((cur_buf[i] & fx2->trigger_mask[fx2->trigger_stage]) == fx2->trigger_value[fx2->trigger_stage]) { |
b5698bd7 | 656 | /* Match on this trigger stage. */ |
6d754b6d BV |
657 | fx2->trigger_buffer[fx2->trigger_stage] = cur_buf[i]; |
658 | fx2->trigger_stage++; | |
a634574e | 659 | |
6d754b6d | 660 | if (fx2->trigger_stage == NUM_TRIGGER_STAGES || fx2->trigger_mask[fx2->trigger_stage] == 0) { |
b5698bd7 BV |
661 | /* Match on all trigger stages, we're done. */ |
662 | trigger_offset = i + 1; | |
663 | ||
664 | /* | |
665 | * TODO: Send pre-trigger buffer to session bus. | |
666 | * Tell the frontend we hit the trigger here. | |
667 | */ | |
5a2326a7 | 668 | packet.type = SR_DF_TRIGGER; |
a634574e | 669 | packet.timeoffset = (num_samples + i) * fx2->period_ps; |
9c939c51 BV |
670 | packet.duration = 0; |
671 | packet.payload = NULL; | |
6d754b6d | 672 | sr_session_bus(fx2->session_data, &packet); |
b5698bd7 BV |
673 | |
674 | /* | |
675 | * Send the samples that triggered it, since we're | |
676 | * skipping past them. | |
677 | */ | |
5a2326a7 | 678 | packet.type = SR_DF_LOGIC; |
a634574e | 679 | packet.timeoffset = (num_samples + i) * fx2->period_ps; |
9c939c51 BV |
680 | packet.duration = fx2->trigger_stage * fx2->period_ps; |
681 | packet.payload = &logic; | |
682 | logic.length = fx2->trigger_stage; | |
683 | logic.unitsize = 1; | |
684 | logic.data = fx2->trigger_buffer; | |
6d754b6d | 685 | sr_session_bus(fx2->session_data, &packet); |
b5698bd7 | 686 | |
6d754b6d | 687 | fx2->trigger_stage = TRIGGER_FIRED; |
b5698bd7 BV |
688 | break; |
689 | } | |
690 | return; | |
691 | } | |
692 | ||
693 | /* | |
694 | * We had a match before, but not in the next sample. However, we may | |
695 | * have a match on this stage in the next bit -- trigger on 0001 will | |
696 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
697 | * the next sample from the one that matched originally, which the | |
698 | * counter increment at the end of the loop takes care of. | |
699 | */ | |
6d754b6d BV |
700 | if (fx2->trigger_stage > 0) { |
701 | i -= fx2->trigger_stage; | |
b5698bd7 BV |
702 | if (i < -1) |
703 | i = -1; /* Oops, went back past this buffer. */ | |
704 | /* Reset trigger stage. */ | |
6d754b6d | 705 | fx2->trigger_stage = 0; |
b5698bd7 | 706 | } |
a1bb33af | 707 | } |
f6958dab | 708 | } |
a1bb33af | 709 | |
6d754b6d | 710 | if (fx2->trigger_stage == TRIGGER_FIRED) { |
f6958dab | 711 | /* Send the incoming transfer to the session bus. */ |
5a2326a7 | 712 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
713 | packet.timeoffset = num_samples * fx2->period_ps; |
714 | packet.duration = cur_buflen * fx2->period_ps; | |
715 | packet.payload = &logic; | |
716 | logic.length = cur_buflen - trigger_offset; | |
717 | logic.unitsize = 1; | |
718 | logic.data = cur_buf + trigger_offset; | |
6d754b6d | 719 | sr_session_bus(fx2->session_data, &packet); |
f6958dab UH |
720 | g_free(cur_buf); |
721 | ||
722 | num_samples += cur_buflen; | |
6d754b6d BV |
723 | if (fx2->limit_samples && (unsigned int) num_samples > fx2->limit_samples) { |
724 | hw_stop_acquisition(-1, fx2->session_data); | |
a1bb33af | 725 | } |
f6958dab UH |
726 | } else { |
727 | /* | |
728 | * TODO: Buffer pre-trigger data in capture | |
729 | * ratio-sized buffer. | |
730 | */ | |
a1bb33af | 731 | } |
a1bb33af UH |
732 | } |
733 | ||
6d754b6d | 734 | static int hw_start_acquisition(int device_index, gpointer session_data) |
a1bb33af | 735 | { |
a00ba012 | 736 | struct sr_device_instance *sdi; |
b9c735a2 UH |
737 | struct sr_datafeed_packet *packet; |
738 | struct sr_datafeed_header *header; | |
6d754b6d | 739 | struct fx2_device *fx2; |
a1bb33af UH |
740 | struct libusb_transfer *transfer; |
741 | const struct libusb_pollfd **lupfd; | |
742 | int size, i; | |
743 | unsigned char *buf; | |
744 | ||
d32d961d | 745 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 746 | return SR_ERR; |
6d754b6d BV |
747 | fx2 = sdi->priv; |
748 | fx2->session_data = session_data; | |
a1bb33af | 749 | |
b53738ba UH |
750 | if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { |
751 | sr_err("saleae: %s: packet malloc failed", __func__); | |
752 | return SR_ERR_MALLOC; | |
753 | } | |
9c939c51 | 754 | |
b53738ba UH |
755 | if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) { |
756 | sr_err("saleae: %s: header malloc failed", __func__); | |
757 | return SR_ERR_MALLOC; | |
758 | } | |
a1bb33af | 759 | |
6f5f21f9 | 760 | /* Start with 2K transfer, subsequently increased to 4K. */ |
a1bb33af | 761 | size = 2048; |
6f5f21f9 | 762 | for (i = 0; i < NUM_SIMUL_TRANSFERS; i++) { |
b53738ba UH |
763 | if (!(buf = g_try_malloc(size))) { |
764 | sr_err("saleae: %s: buf malloc failed", __func__); | |
765 | return SR_ERR_MALLOC; | |
766 | } | |
a1bb33af | 767 | transfer = libusb_alloc_transfer(0); |
6f5f21f9 UH |
768 | libusb_fill_bulk_transfer(transfer, sdi->usb->devhdl, |
769 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
6d754b6d | 770 | receive_transfer, fx2, 40); |
6f5f21f9 UH |
771 | if (libusb_submit_transfer(transfer) != 0) { |
772 | /* TODO: Free them all. */ | |
a1bb33af UH |
773 | libusb_free_transfer(transfer); |
774 | g_free(buf); | |
e46b8fb1 | 775 | return SR_ERR; |
a1bb33af UH |
776 | } |
777 | size = 4096; | |
778 | } | |
779 | ||
780 | lupfd = libusb_get_pollfds(usb_context); | |
6f5f21f9 | 781 | for (i = 0; lupfd[i]; i++) |
6f1be0a2 UH |
782 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, 40, receive_data, |
783 | NULL); | |
a1bb33af UH |
784 | free(lupfd); |
785 | ||
5a2326a7 | 786 | packet->type = SR_DF_HEADER; |
9c939c51 | 787 | packet->payload = header; |
a1bb33af UH |
788 | header->feed_version = 1; |
789 | gettimeofday(&header->starttime, NULL); | |
6d754b6d | 790 | header->samplerate = fx2->cur_samplerate; |
6d754b6d | 791 | header->num_logic_probes = fx2->profile->num_probes; |
c2616fb9 | 792 | header->num_analog_probes = 0; |
6d754b6d | 793 | sr_session_bus(session_data, packet); |
a1bb33af UH |
794 | g_free(header); |
795 | g_free(packet); | |
796 | ||
e46b8fb1 | 797 | return SR_OK; |
a1bb33af UH |
798 | } |
799 | ||
6f5f21f9 | 800 | /* This stops acquisition on ALL devices, ignoring device_index. */ |
6d754b6d | 801 | static void hw_stop_acquisition(int device_index, gpointer session_data) |
a1bb33af | 802 | { |
b9c735a2 | 803 | struct sr_datafeed_packet packet; |
a1bb33af | 804 | |
17e1afcb | 805 | /* Avoid compiler warnings. */ |
cb93f8a9 | 806 | (void)device_index; |
afc8e4de | 807 | |
5a2326a7 | 808 | packet.type = SR_DF_END; |
6d754b6d | 809 | sr_session_bus(session_data, &packet); |
a1bb33af UH |
810 | |
811 | receive_transfer(NULL); | |
812 | ||
6f5f21f9 | 813 | /* TODO: Need to cancel and free any queued up transfers. */ |
a1bb33af UH |
814 | } |
815 | ||
5c2d46d1 | 816 | struct sr_device_plugin saleae_logic_plugin_info = { |
e519ba86 UH |
817 | .name = "saleae-logic", |
818 | .longname = "Saleae Logic", | |
819 | .api_version = 1, | |
820 | .init = hw_init, | |
821 | .cleanup = hw_cleanup, | |
86f5e3d8 UH |
822 | .opendev = hw_opendev, |
823 | .closedev = hw_closedev, | |
e519ba86 UH |
824 | .get_device_info = hw_get_device_info, |
825 | .get_status = hw_get_status, | |
826 | .get_capabilities = hw_get_capabilities, | |
827 | .set_configuration = hw_set_configuration, | |
828 | .start_acquisition = hw_start_acquisition, | |
829 | .stop_acquisition = hw_stop_acquisition, | |
a1bb33af | 830 | }; |