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Commit | Line | Data |
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a1bb33af UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
01469707 | 4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> |
a1bb33af UH |
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> | |
22 | #include <sys/time.h> | |
23 | #include <inttypes.h> | |
24 | #include <glib.h> | |
25 | #include <libusb.h> | |
1a081ca6 | 26 | #include "config.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 | ||
c37d2b1b | 49 | static const char *probe_names[] = { |
464d12c7 KS |
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 | */ | |
69890f73 UH |
195 | if (libusb_get_bus_number(devlist[i]) != fx2->usb->bus |
196 | || libusb_get_device_address(devlist[i]) != fx2->usb->address) | |
e10d6e32 BV |
197 | /* this is not the one */ |
198 | continue; | |
199 | } | |
200 | ||
69890f73 UH |
201 | if (!(err = libusb_open(devlist[i], &fx2->usb->devhdl))) { |
202 | if (fx2->usb->address == 0xff) | |
e10d6e32 BV |
203 | /* |
204 | * first time we touch this device after firmware upload, | |
205 | * so we don't know the address yet. | |
206 | */ | |
69890f73 | 207 | fx2->usb->address = libusb_get_device_address(devlist[i]); |
e10d6e32 BV |
208 | |
209 | sdi->status = SR_ST_ACTIVE; | |
e53c830f | 210 | sr_info("saleae: opened device %d on %d.%d interface %d", |
69890f73 UH |
211 | sdi->index, fx2->usb->bus, |
212 | fx2->usb->address, USB_INTERFACE); | |
e10d6e32 | 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 | { |
69890f73 UH |
230 | struct fx2_device *fx2; |
231 | ||
232 | fx2 = sdi->priv; | |
233 | ||
234 | if (fx2->usb->devhdl == NULL) | |
f6958dab UH |
235 | return; |
236 | ||
b08024a8 | 237 | sr_info("saleae: closing device %d on %d.%d interface %d", sdi->index, |
69890f73 UH |
238 | fx2->usb->bus, fx2->usb->address, USB_INTERFACE); |
239 | libusb_release_interface(fx2->usb->devhdl, USB_INTERFACE); | |
240 | libusb_close(fx2->usb->devhdl); | |
241 | fx2->usb->devhdl = NULL; | |
5a2326a7 | 242 | sdi->status = SR_ST_INACTIVE; |
a1bb33af UH |
243 | } |
244 | ||
6d754b6d | 245 | static int configure_probes(struct fx2_device *fx2, GSList *probes) |
a1bb33af | 246 | { |
1afe8989 | 247 | struct sr_probe *probe; |
a1bb33af UH |
248 | GSList *l; |
249 | int probe_bit, stage, i; | |
250 | char *tc; | |
251 | ||
6d754b6d | 252 | fx2->probe_mask = 0; |
6f5f21f9 | 253 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
6d754b6d BV |
254 | fx2->trigger_mask[i] = 0; |
255 | fx2->trigger_value[i] = 0; | |
a1bb33af UH |
256 | } |
257 | ||
258 | stage = -1; | |
6f5f21f9 | 259 | for (l = probes; l; l = l->next) { |
1afe8989 | 260 | probe = (struct sr_probe *)l->data; |
6f5f21f9 | 261 | if (probe->enabled == FALSE) |
a1bb33af UH |
262 | continue; |
263 | probe_bit = 1 << (probe->index - 1); | |
6d754b6d | 264 | fx2->probe_mask |= probe_bit; |
989938f6 UH |
265 | if (!(probe->trigger)) |
266 | continue; | |
267 | ||
268 | stage = 0; | |
269 | for (tc = probe->trigger; *tc; tc++) { | |
6d754b6d | 270 | fx2->trigger_mask[stage] |= probe_bit; |
989938f6 | 271 | if (*tc == '1') |
6d754b6d | 272 | fx2->trigger_value[stage] |= probe_bit; |
989938f6 UH |
273 | stage++; |
274 | if (stage > NUM_TRIGGER_STAGES) | |
e46b8fb1 | 275 | return SR_ERR; |
a1bb33af UH |
276 | } |
277 | } | |
278 | ||
6f5f21f9 UH |
279 | if (stage == -1) |
280 | /* | |
281 | * We didn't configure any triggers, make sure acquisition | |
282 | * doesn't wait for any. | |
283 | */ | |
6d754b6d | 284 | fx2->trigger_stage = TRIGGER_FIRED; |
a1bb33af | 285 | else |
6d754b6d | 286 | fx2->trigger_stage = 0; |
a1bb33af | 287 | |
e46b8fb1 | 288 | return SR_OK; |
a1bb33af UH |
289 | } |
290 | ||
6d754b6d BV |
291 | static struct fx2_device *fx2_device_new(void) |
292 | { | |
293 | struct fx2_device *fx2; | |
294 | ||
295 | if (!(fx2 = g_try_malloc0(sizeof(struct fx2_device)))) { | |
69890f73 | 296 | sr_err("saleae: %s: fx2 malloc failed", __func__); |
6d754b6d BV |
297 | return NULL; |
298 | } | |
299 | fx2->trigger_stage = TRIGGER_FIRED; | |
69890f73 | 300 | fx2->usb = NULL; |
6d754b6d BV |
301 | |
302 | return fx2; | |
303 | } | |
304 | ||
305 | ||
a1bb33af UH |
306 | /* |
307 | * API callbacks | |
308 | */ | |
309 | ||
54ac5277 | 310 | static int hw_init(const char *deviceinfo) |
a1bb33af | 311 | { |
a00ba012 | 312 | struct sr_device_instance *sdi; |
a1bb33af | 313 | struct libusb_device_descriptor des; |
6d754b6d BV |
314 | struct fx2_profile *fx2_prof; |
315 | struct fx2_device *fx2; | |
a1bb33af | 316 | libusb_device **devlist; |
e10d6e32 | 317 | int err, devcnt, i, j; |
a1bb33af | 318 | |
17e1afcb | 319 | /* Avoid compiler warnings. */ |
cb93f8a9 | 320 | (void)deviceinfo; |
afc8e4de | 321 | |
6f5f21f9 | 322 | if (libusb_init(&usb_context) != 0) { |
b08024a8 | 323 | sr_warn("Failed to initialize USB."); |
a1bb33af UH |
324 | return 0; |
325 | } | |
a1bb33af | 326 | |
6f5f21f9 | 327 | /* Find all Saleae Logic devices and upload firmware to all of them. */ |
a1bb33af UH |
328 | devcnt = 0; |
329 | libusb_get_device_list(usb_context, &devlist); | |
6f5f21f9 | 330 | for (i = 0; devlist[i]; i++) { |
6d754b6d | 331 | fx2_prof = NULL; |
a1bb33af | 332 | err = libusb_get_device_descriptor(devlist[i], &des); |
6f5f21f9 | 333 | if (err != 0) { |
b08024a8 | 334 | sr_warn("failed to get device descriptor: %d", err); |
a1bb33af UH |
335 | continue; |
336 | } | |
337 | ||
e10d6e32 BV |
338 | for (j = 0; supported_fx2[j].orig_vid; j++) { |
339 | if (des.idVendor == supported_fx2[j].orig_vid | |
340 | && des.idProduct == supported_fx2[j].orig_pid) { | |
6d754b6d | 341 | fx2_prof = &supported_fx2[j]; |
e10d6e32 BV |
342 | break; |
343 | } | |
344 | } | |
6d754b6d | 345 | if (!fx2_prof) |
e10d6e32 BV |
346 | /* not a supported VID/PID */ |
347 | continue; | |
a1bb33af | 348 | |
5a2326a7 | 349 | sdi = sr_device_instance_new(devcnt, SR_ST_INITIALIZING, |
6d754b6d | 350 | fx2_prof->vendor, fx2_prof->model, fx2_prof->model_version); |
f6958dab UH |
351 | if (!sdi) |
352 | return 0; | |
6d754b6d BV |
353 | fx2 = fx2_device_new(); |
354 | fx2->profile = fx2_prof; | |
355 | sdi->priv = fx2; | |
f6958dab | 356 | device_instances = g_slist_append(device_instances, sdi); |
6f5f21f9 | 357 | |
6d754b6d | 358 | if (check_conf_profile(devlist[i])) { |
f6958dab | 359 | /* Already has the firmware, so fix the new address. */ |
e10d6e32 | 360 | sdi->status = SR_ST_INACTIVE; |
69890f73 | 361 | fx2->usb = sr_usb_device_instance_new |
f6958dab | 362 | (libusb_get_bus_number(devlist[i]), |
fed16f06 | 363 | libusb_get_device_address(devlist[i]), NULL); |
6d754b6d BV |
364 | } else { |
365 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, FIRMWARE) == SR_OK) | |
366 | /* Remember when the firmware on this device was updated */ | |
367 | g_get_current_time(&fx2->fw_updated); | |
368 | else | |
369 | sr_warn("firmware upload failed for device %d", devcnt); | |
69890f73 | 370 | fx2->usb = sr_usb_device_instance_new |
6d754b6d | 371 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); |
a1bb33af | 372 | } |
f6958dab | 373 | devcnt++; |
a1bb33af UH |
374 | } |
375 | libusb_free_device_list(devlist, 1); | |
376 | ||
377 | return devcnt; | |
378 | } | |
379 | ||
a1bb33af UH |
380 | static int hw_opendev(int device_index) |
381 | { | |
382 | GTimeVal cur_time; | |
a00ba012 | 383 | struct sr_device_instance *sdi; |
6d754b6d | 384 | struct fx2_device *fx2; |
a1bb33af | 385 | int timediff, err; |
e10d6e32 | 386 | |
6d754b6d BV |
387 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
388 | return SR_ERR; | |
389 | fx2 = sdi->priv; | |
390 | ||
e10d6e32 BV |
391 | /* |
392 | * if the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms | |
393 | * for the FX2 to renumerate | |
394 | */ | |
6d754b6d BV |
395 | err = 0; |
396 | if (GTV_TO_MSEC(fx2->fw_updated) > 0) { | |
e53c830f | 397 | sr_info("saleae: waiting for device to reset"); |
e10d6e32 BV |
398 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ |
399 | g_usleep(300*1000); | |
400 | timediff = 0; | |
401 | while (timediff < MAX_RENUM_DELAY) { | |
6d754b6d | 402 | if ((err = sl_open_device(device_index)) == SR_OK) |
e10d6e32 BV |
403 | break; |
404 | g_usleep(100*1000); | |
405 | g_get_current_time(&cur_time); | |
6d754b6d | 406 | timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(fx2->fw_updated); |
a1bb33af | 407 | } |
e53c830f | 408 | sr_info("saleae: device came back after %d ms", timediff); |
e10d6e32 | 409 | } else { |
6d754b6d | 410 | err = sl_open_device(device_index); |
a1bb33af UH |
411 | } |
412 | ||
6d754b6d | 413 | if (err != SR_OK) { |
b08024a8 | 414 | sr_warn("unable to open device"); |
e46b8fb1 | 415 | return SR_ERR; |
a1bb33af | 416 | } |
6d754b6d | 417 | fx2 = sdi->priv; |
a1bb33af | 418 | |
69890f73 | 419 | err = libusb_claim_interface(fx2->usb->devhdl, USB_INTERFACE); |
6f5f21f9 | 420 | if (err != 0) { |
b08024a8 | 421 | sr_warn("Unable to claim interface: %d", err); |
e46b8fb1 | 422 | return SR_ERR; |
a1bb33af UH |
423 | } |
424 | ||
6d754b6d | 425 | if (fx2->cur_samplerate == 0) { |
6f5f21f9 | 426 | /* Samplerate hasn't been set; default to the slowest one. */ |
5a2326a7 | 427 | if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE, |
e46b8fb1 UH |
428 | &supported_samplerates[0]) == SR_ERR) |
429 | return SR_ERR; | |
a1bb33af UH |
430 | } |
431 | ||
e46b8fb1 | 432 | return SR_OK; |
a1bb33af UH |
433 | } |
434 | ||
697785d1 | 435 | static int hw_closedev(int device_index) |
a1bb33af | 436 | { |
a00ba012 | 437 | struct sr_device_instance *sdi; |
a1bb33af | 438 | |
697785d1 UH |
439 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { |
440 | sr_err("logic: %s: sdi was NULL", __func__); | |
441 | return SR_ERR; /* TODO: SR_ERR_ARG? */ | |
442 | } | |
443 | ||
444 | /* TODO */ | |
445 | close_device(sdi); | |
446 | ||
447 | return SR_OK; | |
a1bb33af UH |
448 | } |
449 | ||
a1bb33af UH |
450 | static void hw_cleanup(void) |
451 | { | |
452 | GSList *l; | |
69890f73 UH |
453 | struct sr_device_instance *sdi; |
454 | struct fx2_device *fx2; | |
a1bb33af | 455 | |
69890f73 UH |
456 | /* Properly close and free all devices. */ |
457 | for (l = device_instances; l; l = l->next) { | |
458 | sdi = l->data; | |
459 | fx2 = sdi->priv; | |
460 | close_device(sdi); | |
461 | sr_usb_device_instance_free(fx2->usb); | |
462 | sr_device_instance_free(sdi); | |
463 | } | |
a1bb33af | 464 | |
a1bb33af UH |
465 | g_slist_free(device_instances); |
466 | device_instances = NULL; | |
467 | ||
6f5f21f9 | 468 | if (usb_context) |
a1bb33af UH |
469 | libusb_exit(usb_context); |
470 | usb_context = NULL; | |
a1bb33af UH |
471 | } |
472 | ||
a1bb33af UH |
473 | static void *hw_get_device_info(int device_index, int device_info_id) |
474 | { | |
a00ba012 | 475 | struct sr_device_instance *sdi; |
6d754b6d | 476 | struct fx2_device *fx2; |
6f5f21f9 | 477 | void *info = NULL; |
a1bb33af | 478 | |
d32d961d | 479 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af | 480 | return NULL; |
6d754b6d | 481 | fx2 = sdi->priv; |
a1bb33af | 482 | |
6f5f21f9 | 483 | switch (device_info_id) { |
5a2326a7 | 484 | case SR_DI_INSTANCE: |
a1bb33af UH |
485 | info = sdi; |
486 | break; | |
5a2326a7 | 487 | case SR_DI_NUM_PROBES: |
6d754b6d | 488 | info = GINT_TO_POINTER(fx2->profile->num_probes); |
a1bb33af | 489 | break; |
464d12c7 KS |
490 | case SR_DI_PROBE_NAMES: |
491 | info = probe_names; | |
492 | break; | |
5a2326a7 | 493 | case SR_DI_SAMPLERATES: |
a1bb33af UH |
494 | info = &samplerates; |
495 | break; | |
5a2326a7 | 496 | case SR_DI_TRIGGER_TYPES: |
a1bb33af UH |
497 | info = TRIGGER_TYPES; |
498 | break; | |
5a2326a7 | 499 | case SR_DI_CUR_SAMPLERATE: |
6d754b6d | 500 | info = &fx2->cur_samplerate; |
a1bb33af UH |
501 | break; |
502 | } | |
503 | ||
504 | return info; | |
505 | } | |
506 | ||
a1bb33af UH |
507 | static int hw_get_status(int device_index) |
508 | { | |
a00ba012 | 509 | struct sr_device_instance *sdi; |
a1bb33af | 510 | |
d32d961d | 511 | sdi = sr_get_device_instance(device_instances, device_index); |
6f5f21f9 | 512 | if (sdi) |
a1bb33af UH |
513 | return sdi->status; |
514 | else | |
5a2326a7 | 515 | return SR_ST_NOT_FOUND; |
a1bb33af UH |
516 | } |
517 | ||
a1bb33af UH |
518 | static int *hw_get_capabilities(void) |
519 | { | |
a1bb33af UH |
520 | return capabilities; |
521 | } | |
522 | ||
a00ba012 | 523 | static int set_configuration_samplerate(struct sr_device_instance *sdi, |
6f5f21f9 | 524 | uint64_t samplerate) |
a1bb33af | 525 | { |
6d754b6d | 526 | struct fx2_device *fx2; |
a1bb33af UH |
527 | uint8_t divider; |
528 | int ret, result, i; | |
529 | unsigned char buf[2]; | |
530 | ||
6d754b6d | 531 | fx2 = sdi->priv; |
6f5f21f9 UH |
532 | for (i = 0; supported_samplerates[i]; i++) { |
533 | if (supported_samplerates[i] == samplerate) | |
a1bb33af UH |
534 | break; |
535 | } | |
6f5f21f9 | 536 | if (supported_samplerates[i] == 0) |
e46b8fb1 | 537 | return SR_ERR_SAMPLERATE; |
a1bb33af | 538 | |
eee4890f | 539 | divider = (uint8_t) (48 / (samplerate / 1000000.0)) - 1; |
a1bb33af | 540 | |
b08024a8 UH |
541 | sr_info("saleae: setting samplerate to %" PRIu64 " Hz (divider %d)", |
542 | samplerate, divider); | |
a1bb33af UH |
543 | buf[0] = 0x01; |
544 | buf[1] = divider; | |
69890f73 | 545 | ret = libusb_bulk_transfer(fx2->usb->devhdl, 1 | LIBUSB_ENDPOINT_OUT, |
6f5f21f9 UH |
546 | buf, 2, &result, 500); |
547 | if (ret != 0) { | |
b08024a8 | 548 | sr_warn("failed to set samplerate: %d", ret); |
e46b8fb1 | 549 | return SR_ERR; |
a1bb33af | 550 | } |
6d754b6d | 551 | fx2->cur_samplerate = samplerate; |
a1bb33af | 552 | |
e46b8fb1 | 553 | return SR_OK; |
a1bb33af UH |
554 | } |
555 | ||
a1bb33af UH |
556 | static int hw_set_configuration(int device_index, int capability, void *value) |
557 | { | |
a00ba012 | 558 | struct sr_device_instance *sdi; |
6d754b6d | 559 | struct fx2_device *fx2; |
a1bb33af UH |
560 | int ret; |
561 | uint64_t *tmp_u64; | |
562 | ||
d32d961d | 563 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 564 | return SR_ERR; |
6d754b6d | 565 | fx2 = sdi->priv; |
a1bb33af | 566 | |
5a2326a7 | 567 | if (capability == SR_HWCAP_SAMPLERATE) { |
a1bb33af UH |
568 | tmp_u64 = value; |
569 | ret = set_configuration_samplerate(sdi, *tmp_u64); | |
5a2326a7 | 570 | } else if (capability == SR_HWCAP_PROBECONFIG) { |
6d754b6d | 571 | ret = configure_probes(fx2, (GSList *) value); |
5a2326a7 | 572 | } else if (capability == SR_HWCAP_LIMIT_SAMPLES) { |
2458ea65 | 573 | tmp_u64 = value; |
6d754b6d | 574 | fx2->limit_samples = *tmp_u64; |
e46b8fb1 | 575 | ret = SR_OK; |
6f5f21f9 | 576 | } else { |
e46b8fb1 | 577 | ret = SR_ERR; |
6f5f21f9 | 578 | } |
a1bb33af UH |
579 | |
580 | return ret; | |
581 | } | |
582 | ||
a1bb33af UH |
583 | static int receive_data(int fd, int revents, void *user_data) |
584 | { | |
585 | struct timeval tv; | |
586 | ||
17e1afcb | 587 | /* Avoid compiler warnings. */ |
cb93f8a9 UH |
588 | (void)fd; |
589 | (void)revents; | |
590 | (void)user_data; | |
afc8e4de | 591 | |
a1bb33af UH |
592 | tv.tv_sec = tv.tv_usec = 0; |
593 | libusb_handle_events_timeout(usb_context, &tv); | |
594 | ||
595 | return TRUE; | |
596 | } | |
597 | ||
a0ecd83b | 598 | static void receive_transfer(struct libusb_transfer *transfer) |
a1bb33af | 599 | { |
9c939c51 | 600 | /* TODO: these statics have to move to fx2_device struct */ |
a1bb33af UH |
601 | static int num_samples = 0; |
602 | static int empty_transfer_count = 0; | |
b9c735a2 | 603 | struct sr_datafeed_packet packet; |
9c939c51 | 604 | struct sr_datafeed_logic logic; |
6d754b6d | 605 | struct fx2_device *fx2; |
a1bb33af UH |
606 | int cur_buflen, trigger_offset, i; |
607 | unsigned char *cur_buf, *new_buf; | |
608 | ||
f6958dab UH |
609 | /* hw_stop_acquisition() is telling us to stop. */ |
610 | if (transfer == NULL) | |
a1bb33af | 611 | num_samples = -1; |
a1bb33af | 612 | |
f6958dab UH |
613 | /* |
614 | * If acquisition has already ended, just free any queued up | |
615 | * transfer that come in. | |
616 | */ | |
6f5f21f9 | 617 | if (num_samples == -1) { |
9c48090a BV |
618 | if (transfer) |
619 | libusb_free_transfer(transfer); | |
f6958dab UH |
620 | return; |
621 | } | |
a1bb33af | 622 | |
b08024a8 UH |
623 | sr_info("saleae: receive_transfer(): status %d received %d bytes", |
624 | transfer->status, transfer->actual_length); | |
f6958dab UH |
625 | |
626 | /* Save incoming transfer before reusing the transfer struct. */ | |
627 | cur_buf = transfer->buffer; | |
628 | cur_buflen = transfer->actual_length; | |
6d754b6d | 629 | fx2 = transfer->user_data; |
f6958dab UH |
630 | |
631 | /* Fire off a new request. */ | |
b53738ba UH |
632 | if (!(new_buf = g_try_malloc(4096))) { |
633 | sr_err("saleae: %s: new_buf malloc failed", __func__); | |
634 | // return SR_ERR_MALLOC; | |
635 | return; /* FIXME */ | |
636 | } | |
637 | ||
f6958dab UH |
638 | transfer->buffer = new_buf; |
639 | transfer->length = 4096; | |
640 | if (libusb_submit_transfer(transfer) != 0) { | |
641 | /* TODO: Stop session? */ | |
b08024a8 | 642 | sr_warn("eek"); |
f6958dab UH |
643 | } |
644 | ||
645 | if (cur_buflen == 0) { | |
646 | empty_transfer_count++; | |
647 | if (empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
648 | /* | |
649 | * The FX2 gave up. End the acquisition, the frontend | |
650 | * will work out that the samplecount is short. | |
651 | */ | |
6d754b6d | 652 | hw_stop_acquisition(-1, fx2->session_data); |
6f5f21f9 | 653 | } |
f6958dab UH |
654 | return; |
655 | } else { | |
656 | empty_transfer_count = 0; | |
657 | } | |
a1bb33af | 658 | |
f6958dab | 659 | trigger_offset = 0; |
6d754b6d | 660 | if (fx2->trigger_stage >= 0) { |
f6958dab | 661 | for (i = 0; i < cur_buflen; i++) { |
b5698bd7 | 662 | |
6d754b6d | 663 | if ((cur_buf[i] & fx2->trigger_mask[fx2->trigger_stage]) == fx2->trigger_value[fx2->trigger_stage]) { |
b5698bd7 | 664 | /* Match on this trigger stage. */ |
6d754b6d BV |
665 | fx2->trigger_buffer[fx2->trigger_stage] = cur_buf[i]; |
666 | fx2->trigger_stage++; | |
a634574e | 667 | |
6d754b6d | 668 | if (fx2->trigger_stage == NUM_TRIGGER_STAGES || fx2->trigger_mask[fx2->trigger_stage] == 0) { |
b5698bd7 BV |
669 | /* Match on all trigger stages, we're done. */ |
670 | trigger_offset = i + 1; | |
671 | ||
672 | /* | |
673 | * TODO: Send pre-trigger buffer to session bus. | |
674 | * Tell the frontend we hit the trigger here. | |
675 | */ | |
5a2326a7 | 676 | packet.type = SR_DF_TRIGGER; |
9c939c51 | 677 | packet.payload = NULL; |
6d754b6d | 678 | sr_session_bus(fx2->session_data, &packet); |
b5698bd7 BV |
679 | |
680 | /* | |
681 | * Send the samples that triggered it, since we're | |
682 | * skipping past them. | |
683 | */ | |
5a2326a7 | 684 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
685 | packet.payload = &logic; |
686 | logic.length = fx2->trigger_stage; | |
687 | logic.unitsize = 1; | |
688 | logic.data = fx2->trigger_buffer; | |
6d754b6d | 689 | sr_session_bus(fx2->session_data, &packet); |
b5698bd7 | 690 | |
6d754b6d | 691 | fx2->trigger_stage = TRIGGER_FIRED; |
b5698bd7 BV |
692 | break; |
693 | } | |
694 | return; | |
695 | } | |
696 | ||
697 | /* | |
698 | * We had a match before, but not in the next sample. However, we may | |
699 | * have a match on this stage in the next bit -- trigger on 0001 will | |
700 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
701 | * the next sample from the one that matched originally, which the | |
702 | * counter increment at the end of the loop takes care of. | |
703 | */ | |
6d754b6d BV |
704 | if (fx2->trigger_stage > 0) { |
705 | i -= fx2->trigger_stage; | |
b5698bd7 BV |
706 | if (i < -1) |
707 | i = -1; /* Oops, went back past this buffer. */ | |
708 | /* Reset trigger stage. */ | |
6d754b6d | 709 | fx2->trigger_stage = 0; |
b5698bd7 | 710 | } |
a1bb33af | 711 | } |
f6958dab | 712 | } |
a1bb33af | 713 | |
6d754b6d | 714 | if (fx2->trigger_stage == TRIGGER_FIRED) { |
f6958dab | 715 | /* Send the incoming transfer to the session bus. */ |
5a2326a7 | 716 | packet.type = SR_DF_LOGIC; |
9c939c51 BV |
717 | packet.payload = &logic; |
718 | logic.length = cur_buflen - trigger_offset; | |
719 | logic.unitsize = 1; | |
720 | logic.data = cur_buf + trigger_offset; | |
6d754b6d | 721 | sr_session_bus(fx2->session_data, &packet); |
f6958dab UH |
722 | g_free(cur_buf); |
723 | ||
724 | num_samples += cur_buflen; | |
6d754b6d BV |
725 | if (fx2->limit_samples && (unsigned int) num_samples > fx2->limit_samples) { |
726 | hw_stop_acquisition(-1, fx2->session_data); | |
a1bb33af | 727 | } |
f6958dab UH |
728 | } else { |
729 | /* | |
730 | * TODO: Buffer pre-trigger data in capture | |
731 | * ratio-sized buffer. | |
732 | */ | |
a1bb33af | 733 | } |
a1bb33af UH |
734 | } |
735 | ||
6d754b6d | 736 | static int hw_start_acquisition(int device_index, gpointer session_data) |
a1bb33af | 737 | { |
a00ba012 | 738 | struct sr_device_instance *sdi; |
b9c735a2 UH |
739 | struct sr_datafeed_packet *packet; |
740 | struct sr_datafeed_header *header; | |
6d754b6d | 741 | struct fx2_device *fx2; |
a1bb33af UH |
742 | struct libusb_transfer *transfer; |
743 | const struct libusb_pollfd **lupfd; | |
744 | int size, i; | |
745 | unsigned char *buf; | |
746 | ||
d32d961d | 747 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 748 | return SR_ERR; |
6d754b6d BV |
749 | fx2 = sdi->priv; |
750 | fx2->session_data = session_data; | |
a1bb33af | 751 | |
b53738ba UH |
752 | if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { |
753 | sr_err("saleae: %s: packet malloc failed", __func__); | |
754 | return SR_ERR_MALLOC; | |
755 | } | |
9c939c51 | 756 | |
b53738ba UH |
757 | if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) { |
758 | sr_err("saleae: %s: header malloc failed", __func__); | |
759 | return SR_ERR_MALLOC; | |
760 | } | |
a1bb33af | 761 | |
6f5f21f9 | 762 | /* Start with 2K transfer, subsequently increased to 4K. */ |
a1bb33af | 763 | size = 2048; |
6f5f21f9 | 764 | for (i = 0; i < NUM_SIMUL_TRANSFERS; i++) { |
b53738ba UH |
765 | if (!(buf = g_try_malloc(size))) { |
766 | sr_err("saleae: %s: buf malloc failed", __func__); | |
767 | return SR_ERR_MALLOC; | |
768 | } | |
a1bb33af | 769 | transfer = libusb_alloc_transfer(0); |
69890f73 | 770 | libusb_fill_bulk_transfer(transfer, fx2->usb->devhdl, |
6f5f21f9 | 771 | 2 | LIBUSB_ENDPOINT_IN, buf, size, |
6d754b6d | 772 | receive_transfer, fx2, 40); |
6f5f21f9 UH |
773 | if (libusb_submit_transfer(transfer) != 0) { |
774 | /* TODO: Free them all. */ | |
a1bb33af UH |
775 | libusb_free_transfer(transfer); |
776 | g_free(buf); | |
e46b8fb1 | 777 | return SR_ERR; |
a1bb33af UH |
778 | } |
779 | size = 4096; | |
780 | } | |
781 | ||
782 | lupfd = libusb_get_pollfds(usb_context); | |
6f5f21f9 | 783 | for (i = 0; lupfd[i]; i++) |
6f1be0a2 UH |
784 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, 40, receive_data, |
785 | NULL); | |
a1bb33af UH |
786 | free(lupfd); |
787 | ||
5a2326a7 | 788 | packet->type = SR_DF_HEADER; |
9c939c51 | 789 | packet->payload = header; |
a1bb33af UH |
790 | header->feed_version = 1; |
791 | gettimeofday(&header->starttime, NULL); | |
6d754b6d | 792 | header->samplerate = fx2->cur_samplerate; |
6d754b6d | 793 | header->num_logic_probes = fx2->profile->num_probes; |
6d754b6d | 794 | sr_session_bus(session_data, packet); |
a1bb33af UH |
795 | g_free(header); |
796 | g_free(packet); | |
797 | ||
e46b8fb1 | 798 | return SR_OK; |
a1bb33af UH |
799 | } |
800 | ||
6f5f21f9 | 801 | /* This stops acquisition on ALL devices, ignoring device_index. */ |
6d754b6d | 802 | static void hw_stop_acquisition(int device_index, gpointer session_data) |
a1bb33af | 803 | { |
b9c735a2 | 804 | struct sr_datafeed_packet packet; |
a1bb33af | 805 | |
17e1afcb | 806 | /* Avoid compiler warnings. */ |
cb93f8a9 | 807 | (void)device_index; |
afc8e4de | 808 | |
5a2326a7 | 809 | packet.type = SR_DF_END; |
6d754b6d | 810 | sr_session_bus(session_data, &packet); |
a1bb33af UH |
811 | |
812 | receive_transfer(NULL); | |
813 | ||
6f5f21f9 | 814 | /* TODO: Need to cancel and free any queued up transfers. */ |
a1bb33af UH |
815 | } |
816 | ||
ca070ed9 | 817 | SR_PRIV struct sr_device_plugin saleae_logic_plugin_info = { |
e519ba86 UH |
818 | .name = "saleae-logic", |
819 | .longname = "Saleae Logic", | |
820 | .api_version = 1, | |
821 | .init = hw_init, | |
822 | .cleanup = hw_cleanup, | |
86f5e3d8 UH |
823 | .opendev = hw_opendev, |
824 | .closedev = hw_closedev, | |
e519ba86 UH |
825 | .get_device_info = hw_get_device_info, |
826 | .get_status = hw_get_status, | |
827 | .get_capabilities = hw_get_capabilities, | |
828 | .set_configuration = hw_set_configuration, | |
829 | .start_acquisition = hw_start_acquisition, | |
830 | .stop_acquisition = hw_stop_acquisition, | |
a1bb33af | 831 | }; |