]>
Commit | Line | Data |
---|---|---|
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> | |
408e7199 | 27 | #include <sigrok.h> |
058b7035 | 28 | #include <sigrok-internal.h> |
a1bb33af | 29 | |
74b9b438 BV |
30 | #define USB_INTERFACE 0 |
31 | #define USB_CONFIGURATION 1 | |
74b9b438 BV |
32 | #define NUM_TRIGGER_STAGES 4 |
33 | #define TRIGGER_TYPES "01" | |
34 | #define FIRMWARE FIRMWARE_DIR "/saleae-logic.fw" | |
e10d6e32 | 35 | #define GTV_TO_MSEC(gtv) (gtv.tv_sec * 1000 + gtv.tv_usec / 1000) |
a1bb33af UH |
36 | |
37 | /* delay in ms */ | |
e10d6e32 | 38 | #define MAX_RENUM_DELAY 3000 |
74b9b438 BV |
39 | #define NUM_SIMUL_TRANSFERS 10 |
40 | #define MAX_EMPTY_TRANSFERS (NUM_SIMUL_TRANSFERS * 2) | |
a1bb33af | 41 | |
fed16f06 | 42 | /* Software trigger implementation: positive values indicate trigger stage. */ |
74b9b438 | 43 | #define TRIGGER_FIRED -1 |
a1bb33af | 44 | |
e10d6e32 BV |
45 | struct fx2_device { |
46 | /* VID/PID when first found */ | |
47 | uint16_t orig_vid; | |
48 | uint16_t orig_pid; | |
49 | /* VID/PID after firmware upload */ | |
50 | uint16_t fw_vid; | |
51 | uint16_t fw_pid; | |
52 | char *vendor; | |
53 | char *model; | |
54 | char *model_version; | |
55 | int num_probes; | |
56 | }; | |
57 | ||
58 | static struct fx2_device supported_fx2[] = { | |
59 | /* Saleae Logic */ | |
60 | { 0x0925, 0x3881, 0x0925, 0x3881, "Saleae", "Logic", NULL, 8 }, | |
61 | /* default Cypress FX2 without EEPROM */ | |
62 | { 0x04b4, 0x8613, 0x0925, 0x3881, "Cypress", "FX2", NULL, 16 }, | |
63 | { 0, 0, 0, 0, NULL, NULL, NULL, 0 } | |
64 | }; | |
65 | ||
6f5f21f9 | 66 | /* There is only one model Saleae Logic, and this is what it supports: */ |
a1bb33af | 67 | static int capabilities[] = { |
5a2326a7 UH |
68 | SR_HWCAP_LOGIC_ANALYZER, |
69 | SR_HWCAP_SAMPLERATE, | |
a1bb33af | 70 | |
6f5f21f9 | 71 | /* These are really implemented in the driver, not the hardware. */ |
5a2326a7 UH |
72 | SR_HWCAP_LIMIT_SAMPLES, |
73 | SR_HWCAP_CONTINUOUS, | |
6f5f21f9 | 74 | 0, |
a1bb33af UH |
75 | }; |
76 | ||
a00ba012 | 77 | /* List of struct sr_device_instance, maintained by opendev()/closedev(). */ |
a1bb33af UH |
78 | static GSList *device_instances = NULL; |
79 | ||
6f5f21f9 UH |
80 | /* |
81 | * Since we can't keep track of a Saleae Logic device after upgrading the | |
a1bb33af UH |
82 | * firmware -- it re-enumerates into a different device address after the |
83 | * upgrade -- this is like a global lock. No device will open until a proper | |
84 | * delay after the last device was upgraded. | |
85 | */ | |
e10d6e32 | 86 | static GTimeVal fw_updated = { 0, 0 }; |
a1bb33af UH |
87 | |
88 | static libusb_context *usb_context = NULL; | |
89 | ||
90 | static uint64_t supported_samplerates[] = { | |
59df0c77 UH |
91 | SR_KHZ(200), |
92 | SR_KHZ(250), | |
93 | SR_KHZ(500), | |
94 | SR_MHZ(1), | |
95 | SR_MHZ(2), | |
96 | SR_MHZ(4), | |
97 | SR_MHZ(8), | |
98 | SR_MHZ(12), | |
99 | SR_MHZ(16), | |
100 | SR_MHZ(24), | |
6f5f21f9 | 101 | 0, |
a1bb33af UH |
102 | }; |
103 | ||
60679b18 | 104 | static struct sr_samplerates samplerates = { |
59df0c77 UH |
105 | SR_KHZ(200), |
106 | SR_MHZ(24), | |
c9140419 | 107 | SR_HZ(0), |
6f5f21f9 | 108 | supported_samplerates, |
a1bb33af UH |
109 | }; |
110 | ||
6f5f21f9 | 111 | /* TODO: All of these should go in a device-specific struct. */ |
4c100f32 | 112 | static uint64_t cur_samplerate = 0; |
a1bb33af | 113 | static uint64_t limit_samples = 0; |
6f5f21f9 UH |
114 | static uint8_t probe_mask = 0; |
115 | static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 }; | |
116 | static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 }; | |
117 | static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 }; | |
e10d6e32 | 118 | static struct fx2_device *fx2 = NULL; |
e5d1717e | 119 | static int trigger_stage = TRIGGER_FIRED; |
a1bb33af | 120 | |
a1bb33af | 121 | static int hw_set_configuration(int device_index, int capability, void *value); |
9c48090a | 122 | static void hw_stop_acquisition(int device_index, gpointer session_device_id); |
a1bb33af | 123 | |
28fc6de0 UH |
124 | /** |
125 | * Check the USB configuration to determine if this is a Saleae Logic. | |
126 | * | |
127 | * @return 1 if the device's configuration profile match the Logic firmware's | |
128 | * configuration, 0 otherwise. | |
a1bb33af | 129 | */ |
e5d1717e | 130 | static int check_conf_profile(libusb_device *dev) |
a1bb33af UH |
131 | { |
132 | struct libusb_device_descriptor des; | |
6f5f21f9 | 133 | struct libusb_config_descriptor *conf_dsc = NULL; |
a1bb33af | 134 | const struct libusb_interface_descriptor *intf_dsc; |
6f5f21f9 | 135 | int ret = -1; |
a1bb33af | 136 | |
6f5f21f9 UH |
137 | while (ret == -1) { |
138 | /* Assume it's not a Saleae Logic unless proven wrong. */ | |
a1bb33af UH |
139 | ret = 0; |
140 | ||
6f5f21f9 | 141 | if (libusb_get_device_descriptor(dev, &des) != 0) |
a1bb33af UH |
142 | break; |
143 | ||
6f5f21f9 UH |
144 | if (des.bNumConfigurations != 1) |
145 | /* Need exactly 1 configuration. */ | |
a1bb33af UH |
146 | break; |
147 | ||
6f5f21f9 | 148 | if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) |
a1bb33af UH |
149 | break; |
150 | ||
6f5f21f9 UH |
151 | if (conf_dsc->bNumInterfaces != 1) |
152 | /* Need exactly 1 interface. */ | |
a1bb33af UH |
153 | break; |
154 | ||
6f5f21f9 UH |
155 | if (conf_dsc->interface[0].num_altsetting != 1) |
156 | /* Need just one alternate setting. */ | |
a1bb33af UH |
157 | break; |
158 | ||
159 | intf_dsc = &(conf_dsc->interface[0].altsetting[0]); | |
6f5f21f9 UH |
160 | if (intf_dsc->bNumEndpoints != 2) |
161 | /* Need 2 endpoints. */ | |
a1bb33af UH |
162 | break; |
163 | ||
6f5f21f9 UH |
164 | if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != |
165 | (1 | LIBUSB_ENDPOINT_OUT)) | |
166 | /* First endpoint should be 1 (outbound). */ | |
a1bb33af UH |
167 | break; |
168 | ||
6f5f21f9 UH |
169 | if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != |
170 | (2 | LIBUSB_ENDPOINT_IN)) | |
171 | /* First endpoint should be 2 (inbound). */ | |
a1bb33af UH |
172 | break; |
173 | ||
6f5f21f9 | 174 | /* If we made it here, it must be a Saleae Logic. */ |
a1bb33af UH |
175 | ret = 1; |
176 | } | |
6f5f21f9 UH |
177 | |
178 | if (conf_dsc) | |
a1bb33af UH |
179 | libusb_free_config_descriptor(conf_dsc); |
180 | ||
181 | return ret; | |
182 | } | |
183 | ||
e5d1717e | 184 | static struct sr_device_instance *sl_open_device(int device_index) |
a1bb33af | 185 | { |
a1bb33af UH |
186 | libusb_device **devlist; |
187 | struct libusb_device_descriptor des; | |
e10d6e32 | 188 | struct sr_device_instance *sdi; |
a1bb33af UH |
189 | int err, skip, i; |
190 | ||
d32d961d | 191 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af UH |
192 | return NULL; |
193 | ||
e10d6e32 BV |
194 | if (sdi->status == SR_ST_ACTIVE) |
195 | /* already in use */ | |
196 | return NULL; | |
197 | ||
198 | skip = 0; | |
a1bb33af | 199 | libusb_get_device_list(usb_context, &devlist); |
e10d6e32 BV |
200 | for (i = 0; devlist[i]; i++) { |
201 | if ((err = libusb_get_device_descriptor(devlist[i], &des))) { | |
e53c830f | 202 | sr_warn("failed to get device descriptor: %d", err); |
e10d6e32 | 203 | continue; |
a1bb33af | 204 | } |
e10d6e32 BV |
205 | |
206 | if (des.idVendor != fx2->fw_vid || des.idProduct != fx2->fw_pid) | |
207 | continue; | |
208 | ||
209 | if (sdi->status == SR_ST_INITIALIZING) { | |
210 | if (skip != device_index) { | |
211 | /* Skip devices of this type that aren't the one we want. */ | |
212 | skip += 1; | |
213 | continue; | |
214 | } | |
215 | } else if (sdi->status == SR_ST_INACTIVE) { | |
216 | /* | |
217 | * This device is fully enumerated, so we need to find this | |
218 | * device by vendor, product, bus and address. | |
219 | */ | |
220 | if (libusb_get_bus_number(devlist[i]) != sdi->usb->bus | |
221 | || libusb_get_device_address(devlist[i]) != sdi->usb->address) | |
222 | /* this is not the one */ | |
223 | continue; | |
224 | } | |
225 | ||
226 | if (!(err = libusb_open(devlist[i], &sdi->usb->devhdl))) { | |
227 | if (sdi->usb->address == 0xff) | |
228 | /* | |
229 | * first time we touch this device after firmware upload, | |
230 | * so we don't know the address yet. | |
231 | */ | |
232 | sdi->usb->address = libusb_get_device_address(devlist[i]); | |
233 | ||
234 | sdi->status = SR_ST_ACTIVE; | |
e53c830f | 235 | sr_info("saleae: opened device %d on %d.%d interface %d", |
e10d6e32 BV |
236 | sdi->index, sdi->usb->bus, |
237 | sdi->usb->address, USB_INTERFACE); | |
238 | } else { | |
e53c830f | 239 | sr_warn("failed to open device: %d", err); |
e10d6e32 | 240 | sdi = NULL; |
a1bb33af | 241 | } |
a1bb33af UH |
242 | } |
243 | libusb_free_device_list(devlist, 1); | |
244 | ||
5a2326a7 | 245 | if (sdi && sdi->status != SR_ST_ACTIVE) |
a1bb33af UH |
246 | sdi = NULL; |
247 | ||
248 | return sdi; | |
249 | } | |
250 | ||
e5d1717e | 251 | static int upload_firmware(libusb_device *dev) |
a1bb33af | 252 | { |
edf60d05 | 253 | int ret; |
a1bb33af | 254 | |
08cfe6a2 UH |
255 | ret = ezusb_upload_firmware(dev, USB_CONFIGURATION, FIRMWARE); |
256 | if (ret != 0) | |
a1bb33af UH |
257 | return 1; |
258 | ||
6f5f21f9 | 259 | /* Remember when the last firmware update was done. */ |
e10d6e32 | 260 | g_get_current_time(&fw_updated); |
a1bb33af UH |
261 | |
262 | return 0; | |
263 | } | |
264 | ||
a00ba012 | 265 | static void close_device(struct sr_device_instance *sdi) |
a1bb33af | 266 | { |
f6958dab UH |
267 | if (sdi->usb->devhdl == NULL) |
268 | return; | |
269 | ||
b08024a8 UH |
270 | sr_info("saleae: closing device %d on %d.%d interface %d", sdi->index, |
271 | sdi->usb->bus, sdi->usb->address, USB_INTERFACE); | |
f6958dab UH |
272 | libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE); |
273 | libusb_close(sdi->usb->devhdl); | |
274 | sdi->usb->devhdl = NULL; | |
5a2326a7 | 275 | sdi->status = SR_ST_INACTIVE; |
a1bb33af UH |
276 | } |
277 | ||
fed16f06 | 278 | static int configure_probes(GSList *probes) |
a1bb33af | 279 | { |
1afe8989 | 280 | struct sr_probe *probe; |
a1bb33af UH |
281 | GSList *l; |
282 | int probe_bit, stage, i; | |
283 | char *tc; | |
284 | ||
285 | probe_mask = 0; | |
6f5f21f9 | 286 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
a1bb33af UH |
287 | trigger_mask[i] = 0; |
288 | trigger_value[i] = 0; | |
289 | } | |
290 | ||
291 | stage = -1; | |
6f5f21f9 | 292 | for (l = probes; l; l = l->next) { |
1afe8989 | 293 | probe = (struct sr_probe *)l->data; |
6f5f21f9 | 294 | if (probe->enabled == FALSE) |
a1bb33af UH |
295 | continue; |
296 | probe_bit = 1 << (probe->index - 1); | |
297 | probe_mask |= probe_bit; | |
989938f6 UH |
298 | if (!(probe->trigger)) |
299 | continue; | |
300 | ||
301 | stage = 0; | |
302 | for (tc = probe->trigger; *tc; tc++) { | |
303 | trigger_mask[stage] |= probe_bit; | |
304 | if (*tc == '1') | |
305 | trigger_value[stage] |= probe_bit; | |
306 | stage++; | |
307 | if (stage > NUM_TRIGGER_STAGES) | |
e46b8fb1 | 308 | return SR_ERR; |
a1bb33af UH |
309 | } |
310 | } | |
311 | ||
6f5f21f9 UH |
312 | if (stage == -1) |
313 | /* | |
314 | * We didn't configure any triggers, make sure acquisition | |
315 | * doesn't wait for any. | |
316 | */ | |
a1bb33af UH |
317 | trigger_stage = TRIGGER_FIRED; |
318 | else | |
319 | trigger_stage = 0; | |
320 | ||
e46b8fb1 | 321 | return SR_OK; |
a1bb33af UH |
322 | } |
323 | ||
a1bb33af UH |
324 | /* |
325 | * API callbacks | |
326 | */ | |
327 | ||
54ac5277 | 328 | static int hw_init(const char *deviceinfo) |
a1bb33af | 329 | { |
a00ba012 | 330 | struct sr_device_instance *sdi; |
a1bb33af UH |
331 | struct libusb_device_descriptor des; |
332 | libusb_device **devlist; | |
e10d6e32 | 333 | int err, devcnt, i, j; |
a1bb33af | 334 | |
17e1afcb | 335 | /* Avoid compiler warnings. */ |
afc8e4de UH |
336 | deviceinfo = deviceinfo; |
337 | ||
6f5f21f9 | 338 | if (libusb_init(&usb_context) != 0) { |
b08024a8 | 339 | sr_warn("Failed to initialize USB."); |
a1bb33af UH |
340 | return 0; |
341 | } | |
a1bb33af | 342 | |
6f5f21f9 | 343 | /* Find all Saleae Logic devices and upload firmware to all of them. */ |
e10d6e32 | 344 | fx2 = NULL; |
a1bb33af UH |
345 | devcnt = 0; |
346 | libusb_get_device_list(usb_context, &devlist); | |
6f5f21f9 | 347 | for (i = 0; devlist[i]; i++) { |
a1bb33af | 348 | err = libusb_get_device_descriptor(devlist[i], &des); |
6f5f21f9 | 349 | if (err != 0) { |
b08024a8 | 350 | sr_warn("failed to get device descriptor: %d", err); |
a1bb33af UH |
351 | continue; |
352 | } | |
353 | ||
e10d6e32 BV |
354 | for (j = 0; supported_fx2[j].orig_vid; j++) { |
355 | if (des.idVendor == supported_fx2[j].orig_vid | |
356 | && des.idProduct == supported_fx2[j].orig_pid) { | |
357 | fx2 = &supported_fx2[j]; | |
358 | break; | |
359 | } | |
360 | } | |
361 | if (!fx2) | |
362 | /* not a supported VID/PID */ | |
363 | continue; | |
a1bb33af | 364 | |
5a2326a7 | 365 | sdi = sr_device_instance_new(devcnt, SR_ST_INITIALIZING, |
e10d6e32 | 366 | fx2->vendor, fx2->model, fx2->model_version); |
f6958dab UH |
367 | if (!sdi) |
368 | return 0; | |
369 | device_instances = g_slist_append(device_instances, sdi); | |
6f5f21f9 | 370 | |
f6958dab UH |
371 | if (check_conf_profile(devlist[i]) == 0) { |
372 | /* | |
373 | * Continue on the off chance that the device is in a | |
374 | * working state. TODO: Could maybe try a USB reset, | |
375 | * or uploading the firmware again. | |
376 | */ | |
377 | if (upload_firmware(devlist[i]) > 0) | |
b08024a8 UH |
378 | sr_warn("firmware upload failed for device %d", |
379 | devcnt); | |
a1bb33af | 380 | |
6c290072 | 381 | sdi->usb = sr_usb_device_instance_new |
e10d6e32 | 382 | (libusb_get_bus_number(devlist[i]), 0xff, NULL); |
f6958dab UH |
383 | } else { |
384 | /* Already has the firmware, so fix the new address. */ | |
e10d6e32 | 385 | sdi->status = SR_ST_INACTIVE; |
6c290072 | 386 | sdi->usb = sr_usb_device_instance_new |
f6958dab | 387 | (libusb_get_bus_number(devlist[i]), |
fed16f06 | 388 | libusb_get_device_address(devlist[i]), NULL); |
a1bb33af | 389 | } |
f6958dab | 390 | devcnt++; |
e10d6e32 BV |
391 | |
392 | /* not supporting multiple FX2s in this driver yet */ | |
393 | break; | |
a1bb33af UH |
394 | } |
395 | libusb_free_device_list(devlist, 1); | |
396 | ||
397 | return devcnt; | |
398 | } | |
399 | ||
a1bb33af UH |
400 | static int hw_opendev(int device_index) |
401 | { | |
402 | GTimeVal cur_time; | |
a00ba012 | 403 | struct sr_device_instance *sdi; |
a1bb33af | 404 | int timediff, err; |
e10d6e32 BV |
405 | |
406 | /* | |
407 | * if the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms | |
408 | * for the FX2 to renumerate | |
409 | */ | |
410 | sdi = NULL; | |
411 | if (fw_updated.tv_sec > 0) { | |
e53c830f | 412 | sr_info("saleae: waiting for device to reset"); |
e10d6e32 BV |
413 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ |
414 | g_usleep(300*1000); | |
415 | timediff = 0; | |
416 | while (timediff < MAX_RENUM_DELAY) { | |
417 | if ((sdi = sl_open_device(device_index))) | |
418 | break; | |
419 | g_usleep(100*1000); | |
420 | g_get_current_time(&cur_time); | |
421 | timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(fw_updated); | |
a1bb33af | 422 | } |
e53c830f | 423 | sr_info("saleae: device came back after %d ms", timediff); |
e10d6e32 BV |
424 | } else { |
425 | sdi = sl_open_device(device_index); | |
a1bb33af UH |
426 | } |
427 | ||
e10d6e32 | 428 | if (!sdi) { |
b08024a8 | 429 | sr_warn("unable to open device"); |
e46b8fb1 | 430 | return SR_ERR; |
a1bb33af UH |
431 | } |
432 | ||
433 | err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE); | |
6f5f21f9 | 434 | if (err != 0) { |
b08024a8 | 435 | sr_warn("Unable to claim interface: %d", err); |
e46b8fb1 | 436 | return SR_ERR; |
a1bb33af UH |
437 | } |
438 | ||
6f5f21f9 UH |
439 | if (cur_samplerate == 0) { |
440 | /* Samplerate hasn't been set; default to the slowest one. */ | |
5a2326a7 | 441 | if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE, |
e46b8fb1 UH |
442 | &supported_samplerates[0]) == SR_ERR) |
443 | return SR_ERR; | |
a1bb33af UH |
444 | } |
445 | ||
e46b8fb1 | 446 | return SR_OK; |
a1bb33af UH |
447 | } |
448 | ||
697785d1 | 449 | static int hw_closedev(int device_index) |
a1bb33af | 450 | { |
a00ba012 | 451 | struct sr_device_instance *sdi; |
a1bb33af | 452 | |
697785d1 UH |
453 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { |
454 | sr_err("logic: %s: sdi was NULL", __func__); | |
455 | return SR_ERR; /* TODO: SR_ERR_ARG? */ | |
456 | } | |
457 | ||
458 | /* TODO */ | |
459 | close_device(sdi); | |
460 | ||
461 | return SR_OK; | |
a1bb33af UH |
462 | } |
463 | ||
a1bb33af UH |
464 | static void hw_cleanup(void) |
465 | { | |
466 | GSList *l; | |
467 | ||
6f5f21f9 UH |
468 | /* Properly close all devices... */ |
469 | for (l = device_instances; l; l = l->next) | |
a00ba012 | 470 | close_device((struct sr_device_instance *)l->data); |
a1bb33af | 471 | |
6f5f21f9 UH |
472 | /* ...and free all their memory. */ |
473 | for (l = device_instances; l; l = l->next) | |
a1bb33af UH |
474 | g_free(l->data); |
475 | g_slist_free(device_instances); | |
476 | device_instances = NULL; | |
477 | ||
6f5f21f9 | 478 | if (usb_context) |
a1bb33af UH |
479 | libusb_exit(usb_context); |
480 | usb_context = NULL; | |
a1bb33af UH |
481 | } |
482 | ||
a1bb33af UH |
483 | static void *hw_get_device_info(int device_index, int device_info_id) |
484 | { | |
a00ba012 | 485 | struct sr_device_instance *sdi; |
6f5f21f9 | 486 | void *info = NULL; |
a1bb33af | 487 | |
d32d961d | 488 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af UH |
489 | return NULL; |
490 | ||
6f5f21f9 | 491 | switch (device_info_id) { |
5a2326a7 | 492 | case SR_DI_INSTANCE: |
a1bb33af UH |
493 | info = sdi; |
494 | break; | |
5a2326a7 | 495 | case SR_DI_NUM_PROBES: |
e10d6e32 | 496 | info = GINT_TO_POINTER(fx2->num_probes); |
a1bb33af | 497 | break; |
5a2326a7 | 498 | case SR_DI_SAMPLERATES: |
a1bb33af UH |
499 | info = &samplerates; |
500 | break; | |
5a2326a7 | 501 | case SR_DI_TRIGGER_TYPES: |
a1bb33af UH |
502 | info = TRIGGER_TYPES; |
503 | break; | |
5a2326a7 | 504 | case SR_DI_CUR_SAMPLERATE: |
4c100f32 | 505 | info = &cur_samplerate; |
a1bb33af UH |
506 | break; |
507 | } | |
508 | ||
509 | return info; | |
510 | } | |
511 | ||
a1bb33af UH |
512 | static int hw_get_status(int device_index) |
513 | { | |
a00ba012 | 514 | struct sr_device_instance *sdi; |
a1bb33af | 515 | |
d32d961d | 516 | sdi = sr_get_device_instance(device_instances, device_index); |
6f5f21f9 | 517 | if (sdi) |
a1bb33af UH |
518 | return sdi->status; |
519 | else | |
5a2326a7 | 520 | return SR_ST_NOT_FOUND; |
a1bb33af UH |
521 | } |
522 | ||
a1bb33af UH |
523 | static int *hw_get_capabilities(void) |
524 | { | |
a1bb33af UH |
525 | return capabilities; |
526 | } | |
527 | ||
a00ba012 | 528 | static int set_configuration_samplerate(struct sr_device_instance *sdi, |
6f5f21f9 | 529 | uint64_t samplerate) |
a1bb33af UH |
530 | { |
531 | uint8_t divider; | |
532 | int ret, result, i; | |
533 | unsigned char buf[2]; | |
534 | ||
6f5f21f9 UH |
535 | for (i = 0; supported_samplerates[i]; i++) { |
536 | if (supported_samplerates[i] == samplerate) | |
a1bb33af UH |
537 | break; |
538 | } | |
6f5f21f9 | 539 | if (supported_samplerates[i] == 0) |
e46b8fb1 | 540 | return SR_ERR_SAMPLERATE; |
a1bb33af | 541 | |
eee4890f | 542 | divider = (uint8_t) (48 / (samplerate / 1000000.0)) - 1; |
a1bb33af | 543 | |
b08024a8 UH |
544 | sr_info("saleae: setting samplerate to %" PRIu64 " Hz (divider %d)", |
545 | samplerate, divider); | |
a1bb33af UH |
546 | buf[0] = 0x01; |
547 | buf[1] = divider; | |
6f5f21f9 UH |
548 | ret = libusb_bulk_transfer(sdi->usb->devhdl, 1 | LIBUSB_ENDPOINT_OUT, |
549 | buf, 2, &result, 500); | |
550 | if (ret != 0) { | |
b08024a8 | 551 | sr_warn("failed to set samplerate: %d", ret); |
e46b8fb1 | 552 | return SR_ERR; |
a1bb33af | 553 | } |
4c100f32 | 554 | cur_samplerate = samplerate; |
a1bb33af | 555 | |
e46b8fb1 | 556 | return SR_OK; |
a1bb33af UH |
557 | } |
558 | ||
a1bb33af UH |
559 | static int hw_set_configuration(int device_index, int capability, void *value) |
560 | { | |
a00ba012 | 561 | struct sr_device_instance *sdi; |
a1bb33af UH |
562 | int ret; |
563 | uint64_t *tmp_u64; | |
564 | ||
d32d961d | 565 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 566 | return SR_ERR; |
a1bb33af | 567 | |
5a2326a7 | 568 | if (capability == SR_HWCAP_SAMPLERATE) { |
a1bb33af UH |
569 | tmp_u64 = value; |
570 | ret = set_configuration_samplerate(sdi, *tmp_u64); | |
5a2326a7 | 571 | } else if (capability == SR_HWCAP_PROBECONFIG) { |
6f5f21f9 | 572 | ret = configure_probes((GSList *) value); |
5a2326a7 | 573 | } else if (capability == SR_HWCAP_LIMIT_SAMPLES) { |
2458ea65 BV |
574 | tmp_u64 = value; |
575 | limit_samples = *tmp_u64; | |
e46b8fb1 | 576 | ret = SR_OK; |
6f5f21f9 | 577 | } else { |
e46b8fb1 | 578 | ret = SR_ERR; |
6f5f21f9 | 579 | } |
a1bb33af UH |
580 | |
581 | return ret; | |
582 | } | |
583 | ||
a1bb33af UH |
584 | static int receive_data(int fd, int revents, void *user_data) |
585 | { | |
586 | struct timeval tv; | |
587 | ||
17e1afcb | 588 | /* Avoid compiler warnings. */ |
afc8e4de UH |
589 | fd = fd; |
590 | revents = revents; | |
591 | user_data = user_data; | |
592 | ||
a1bb33af UH |
593 | tv.tv_sec = tv.tv_usec = 0; |
594 | libusb_handle_events_timeout(usb_context, &tv); | |
595 | ||
596 | return TRUE; | |
597 | } | |
598 | ||
a1bb33af UH |
599 | void receive_transfer(struct libusb_transfer *transfer) |
600 | { | |
601 | static int num_samples = 0; | |
602 | static int empty_transfer_count = 0; | |
b9c735a2 | 603 | struct sr_datafeed_packet packet; |
a1bb33af UH |
604 | void *user_data; |
605 | int cur_buflen, trigger_offset, i; | |
606 | unsigned char *cur_buf, *new_buf; | |
607 | ||
f6958dab UH |
608 | /* hw_stop_acquisition() is telling us to stop. */ |
609 | if (transfer == NULL) | |
a1bb33af | 610 | num_samples = -1; |
a1bb33af | 611 | |
f6958dab UH |
612 | /* |
613 | * If acquisition has already ended, just free any queued up | |
614 | * transfer that come in. | |
615 | */ | |
6f5f21f9 | 616 | if (num_samples == -1) { |
9c48090a BV |
617 | if (transfer) |
618 | libusb_free_transfer(transfer); | |
f6958dab UH |
619 | return; |
620 | } | |
a1bb33af | 621 | |
b08024a8 UH |
622 | sr_info("saleae: receive_transfer(): status %d received %d bytes", |
623 | transfer->status, transfer->actual_length); | |
f6958dab UH |
624 | |
625 | /* Save incoming transfer before reusing the transfer struct. */ | |
626 | cur_buf = transfer->buffer; | |
627 | cur_buflen = transfer->actual_length; | |
628 | user_data = transfer->user_data; | |
629 | ||
630 | /* Fire off a new request. */ | |
b53738ba UH |
631 | if (!(new_buf = g_try_malloc(4096))) { |
632 | sr_err("saleae: %s: new_buf malloc failed", __func__); | |
633 | // return SR_ERR_MALLOC; | |
634 | return; /* FIXME */ | |
635 | } | |
636 | ||
f6958dab UH |
637 | transfer->buffer = new_buf; |
638 | transfer->length = 4096; | |
639 | if (libusb_submit_transfer(transfer) != 0) { | |
640 | /* TODO: Stop session? */ | |
b08024a8 | 641 | sr_warn("eek"); |
f6958dab UH |
642 | } |
643 | ||
644 | if (cur_buflen == 0) { | |
645 | empty_transfer_count++; | |
646 | if (empty_transfer_count > MAX_EMPTY_TRANSFERS) { | |
647 | /* | |
648 | * The FX2 gave up. End the acquisition, the frontend | |
649 | * will work out that the samplecount is short. | |
650 | */ | |
9c48090a | 651 | hw_stop_acquisition(-1, user_data); |
6f5f21f9 | 652 | } |
f6958dab UH |
653 | return; |
654 | } else { | |
655 | empty_transfer_count = 0; | |
656 | } | |
a1bb33af | 657 | |
f6958dab UH |
658 | trigger_offset = 0; |
659 | if (trigger_stage >= 0) { | |
660 | for (i = 0; i < cur_buflen; i++) { | |
b5698bd7 BV |
661 | |
662 | if ((cur_buf[i] & trigger_mask[trigger_stage]) == trigger_value[trigger_stage]) { | |
663 | /* Match on this trigger stage. */ | |
664 | trigger_buffer[trigger_stage] = cur_buf[i]; | |
665 | trigger_stage++; | |
666 | if (trigger_stage == NUM_TRIGGER_STAGES || trigger_mask[trigger_stage] == 0) { | |
667 | /* Match on all trigger stages, we're done. */ | |
668 | trigger_offset = i + 1; | |
669 | ||
670 | /* | |
671 | * TODO: Send pre-trigger buffer to session bus. | |
672 | * Tell the frontend we hit the trigger here. | |
673 | */ | |
5a2326a7 | 674 | packet.type = SR_DF_TRIGGER; |
b5698bd7 | 675 | packet.length = 0; |
8a2efef2 | 676 | sr_session_bus(user_data, &packet); |
b5698bd7 BV |
677 | |
678 | /* | |
679 | * Send the samples that triggered it, since we're | |
680 | * skipping past them. | |
681 | */ | |
5a2326a7 | 682 | packet.type = SR_DF_LOGIC; |
b5698bd7 | 683 | packet.length = trigger_stage; |
4c046c6b | 684 | packet.unitsize = 1; |
b5698bd7 | 685 | packet.payload = trigger_buffer; |
8a2efef2 | 686 | sr_session_bus(user_data, &packet); |
b5698bd7 BV |
687 | |
688 | trigger_stage = TRIGGER_FIRED; | |
689 | break; | |
690 | } | |
691 | return; | |
692 | } | |
693 | ||
694 | /* | |
695 | * We had a match before, but not in the next sample. However, we may | |
696 | * have a match on this stage in the next bit -- trigger on 0001 will | |
697 | * fail on seeing 00001, so we need to go back to stage 0 -- but at | |
698 | * the next sample from the one that matched originally, which the | |
699 | * counter increment at the end of the loop takes care of. | |
700 | */ | |
701 | if (trigger_stage > 0) { | |
702 | i -= trigger_stage; | |
703 | if (i < -1) | |
704 | i = -1; /* Oops, went back past this buffer. */ | |
705 | /* Reset trigger stage. */ | |
706 | trigger_stage = 0; | |
707 | } | |
708 | ||
709 | ||
a1bb33af | 710 | } |
f6958dab | 711 | } |
a1bb33af | 712 | |
f6958dab UH |
713 | if (trigger_stage == TRIGGER_FIRED) { |
714 | /* Send the incoming transfer to the session bus. */ | |
5a2326a7 | 715 | packet.type = SR_DF_LOGIC; |
f6958dab | 716 | packet.length = cur_buflen - trigger_offset; |
4c046c6b | 717 | packet.unitsize = 1; |
f6958dab | 718 | packet.payload = cur_buf + trigger_offset; |
8a2efef2 | 719 | sr_session_bus(user_data, &packet); |
f6958dab UH |
720 | g_free(cur_buf); |
721 | ||
722 | num_samples += cur_buflen; | |
74b9b438 | 723 | if (limit_samples && (unsigned int) num_samples > limit_samples) { |
9c48090a | 724 | hw_stop_acquisition(-1, user_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 | ||
a1bb33af UH |
734 | static int hw_start_acquisition(int device_index, gpointer session_device_id) |
735 | { | |
a00ba012 | 736 | struct sr_device_instance *sdi; |
b9c735a2 UH |
737 | struct sr_datafeed_packet *packet; |
738 | struct sr_datafeed_header *header; | |
a1bb33af UH |
739 | struct libusb_transfer *transfer; |
740 | const struct libusb_pollfd **lupfd; | |
741 | int size, i; | |
742 | unsigned char *buf; | |
743 | ||
d32d961d | 744 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 745 | return SR_ERR; |
a1bb33af | 746 | |
b53738ba UH |
747 | if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { |
748 | sr_err("saleae: %s: packet malloc failed", __func__); | |
749 | return SR_ERR_MALLOC; | |
750 | } | |
751 | ||
752 | if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) { | |
753 | sr_err("saleae: %s: header malloc failed", __func__); | |
754 | return SR_ERR_MALLOC; | |
755 | } | |
a1bb33af | 756 | |
6f5f21f9 | 757 | /* Start with 2K transfer, subsequently increased to 4K. */ |
a1bb33af | 758 | size = 2048; |
6f5f21f9 | 759 | for (i = 0; i < NUM_SIMUL_TRANSFERS; i++) { |
b53738ba UH |
760 | if (!(buf = g_try_malloc(size))) { |
761 | sr_err("saleae: %s: buf malloc failed", __func__); | |
762 | return SR_ERR_MALLOC; | |
763 | } | |
a1bb33af | 764 | transfer = libusb_alloc_transfer(0); |
6f5f21f9 UH |
765 | libusb_fill_bulk_transfer(transfer, sdi->usb->devhdl, |
766 | 2 | LIBUSB_ENDPOINT_IN, buf, size, | |
a1bb33af | 767 | receive_transfer, session_device_id, 40); |
6f5f21f9 UH |
768 | if (libusb_submit_transfer(transfer) != 0) { |
769 | /* TODO: Free them all. */ | |
a1bb33af UH |
770 | libusb_free_transfer(transfer); |
771 | g_free(buf); | |
e46b8fb1 | 772 | return SR_ERR; |
a1bb33af UH |
773 | } |
774 | size = 4096; | |
775 | } | |
776 | ||
777 | lupfd = libusb_get_pollfds(usb_context); | |
6f5f21f9 | 778 | for (i = 0; lupfd[i]; i++) |
6f1be0a2 UH |
779 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, 40, receive_data, |
780 | NULL); | |
a1bb33af UH |
781 | free(lupfd); |
782 | ||
5a2326a7 | 783 | packet->type = SR_DF_HEADER; |
b9c735a2 | 784 | packet->length = sizeof(struct sr_datafeed_header); |
6f5f21f9 | 785 | packet->payload = (unsigned char *)header; |
a1bb33af UH |
786 | header->feed_version = 1; |
787 | gettimeofday(&header->starttime, NULL); | |
4c100f32 | 788 | header->samplerate = cur_samplerate; |
5a2326a7 | 789 | header->protocol_id = SR_PROTO_RAW; |
e10d6e32 | 790 | header->num_logic_probes = fx2->num_probes; |
c2616fb9 | 791 | header->num_analog_probes = 0; |
8a2efef2 | 792 | sr_session_bus(session_device_id, packet); |
a1bb33af UH |
793 | g_free(header); |
794 | g_free(packet); | |
795 | ||
e46b8fb1 | 796 | return SR_OK; |
a1bb33af UH |
797 | } |
798 | ||
6f5f21f9 | 799 | /* This stops acquisition on ALL devices, ignoring device_index. */ |
a1bb33af UH |
800 | static void hw_stop_acquisition(int device_index, gpointer session_device_id) |
801 | { | |
b9c735a2 | 802 | struct sr_datafeed_packet packet; |
a1bb33af | 803 | |
17e1afcb | 804 | /* Avoid compiler warnings. */ |
afc8e4de UH |
805 | device_index = device_index; |
806 | ||
5a2326a7 | 807 | packet.type = SR_DF_END; |
8a2efef2 | 808 | sr_session_bus(session_device_id, &packet); |
a1bb33af UH |
809 | |
810 | receive_transfer(NULL); | |
811 | ||
6f5f21f9 | 812 | /* TODO: Need to cancel and free any queued up transfers. */ |
a1bb33af UH |
813 | } |
814 | ||
5c2d46d1 | 815 | struct sr_device_plugin saleae_logic_plugin_info = { |
e519ba86 UH |
816 | .name = "saleae-logic", |
817 | .longname = "Saleae Logic", | |
818 | .api_version = 1, | |
819 | .init = hw_init, | |
820 | .cleanup = hw_cleanup, | |
86f5e3d8 UH |
821 | .opendev = hw_opendev, |
822 | .closedev = hw_closedev, | |
e519ba86 UH |
823 | .get_device_info = hw_get_device_info, |
824 | .get_status = hw_get_status, | |
825 | .get_capabilities = hw_get_capabilities, | |
826 | .set_configuration = hw_set_configuration, | |
827 | .start_acquisition = hw_start_acquisition, | |
828 | .stop_acquisition = hw_stop_acquisition, | |
a1bb33af | 829 | }; |