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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 | ||
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <sys/time.h> | |
24 | #include <inttypes.h> | |
25 | #include <glib.h> | |
26 | #include <libusb.h> | |
27 | #include "config.h" | |
28 | #include "sigrok.h" | |
29 | #include "sigrok-internal.h" | |
30 | #include "analyzer.h" | |
31 | ||
32 | #define USB_VENDOR 0x0c12 | |
33 | #define USB_VENDOR_NAME "Zeroplus" | |
34 | #define USB_MODEL_NAME "Logic Cube" | |
35 | #define USB_MODEL_VERSION "" | |
36 | ||
37 | #define USB_INTERFACE 0 | |
38 | #define USB_CONFIGURATION 1 | |
39 | #define NUM_TRIGGER_STAGES 4 | |
40 | #define TRIGGER_TYPES "01" | |
41 | ||
42 | #define PACKET_SIZE 2048 /* ?? */ | |
43 | ||
44 | typedef struct { | |
45 | unsigned short pid; | |
46 | char model_name[64]; | |
47 | unsigned int channels; | |
48 | unsigned int sample_depth; /* In Ksamples/channel */ | |
49 | unsigned int max_sampling_freq; | |
50 | } model_t; | |
51 | ||
52 | /* | |
53 | * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the | |
54 | * same 128K sample depth. | |
55 | */ | |
56 | static model_t zeroplus_models[] = { | |
57 | {0x7009, "LAP-C(16064)", 16, 64, 100}, | |
58 | {0x700A, "LAP-C(16128)", 16, 128, 200}, | |
59 | {0x700B, "LAP-C(32128)", 32, 128, 200}, | |
60 | {0x700C, "LAP-C(321000)", 32, 1024, 200}, | |
61 | {0x700D, "LAP-C(322000)", 32, 2048, 200}, | |
62 | {0x700E, "LAP-C(16032)", 16, 32, 100}, | |
63 | {0x7016, "LAP-C(162000)", 16, 2048, 200}, | |
64 | }; | |
65 | ||
66 | static int capabilities[] = { | |
67 | SR_HWCAP_LOGIC_ANALYZER, | |
68 | SR_HWCAP_SAMPLERATE, | |
69 | SR_HWCAP_PROBECONFIG, | |
70 | SR_HWCAP_CAPTURE_RATIO, | |
71 | ||
72 | /* These are really implemented in the driver, not the hardware. */ | |
73 | SR_HWCAP_LIMIT_SAMPLES, | |
74 | 0, | |
75 | }; | |
76 | ||
77 | static const char *probe_names[] = { | |
78 | "0", | |
79 | "1", | |
80 | "2", | |
81 | "3", | |
82 | "4", | |
83 | "5", | |
84 | "6", | |
85 | "7", | |
86 | "8", | |
87 | "9", | |
88 | "10", | |
89 | "11", | |
90 | "12", | |
91 | "13", | |
92 | "14", | |
93 | "15", | |
94 | "16", | |
95 | "17", | |
96 | "18", | |
97 | "19", | |
98 | "20", | |
99 | "21", | |
100 | "22", | |
101 | "23", | |
102 | "24", | |
103 | "25", | |
104 | "26", | |
105 | "27", | |
106 | "28", | |
107 | "29", | |
108 | "30", | |
109 | "31", | |
110 | NULL, | |
111 | }; | |
112 | ||
113 | /* List of struct sr_device_instance, maintained by opendev()/closedev(). */ | |
114 | static GSList *device_instances = NULL; | |
115 | ||
116 | static libusb_context *usb_context = NULL; | |
117 | ||
118 | /* | |
119 | * The hardware supports more samplerates than these, but these are the | |
120 | * options hardcoded into the vendor's Windows GUI. | |
121 | */ | |
122 | ||
123 | /* | |
124 | * TODO: We shouldn't support 150MHz and 200MHz on devices that don't go up | |
125 | * that high. | |
126 | */ | |
127 | static uint64_t supported_samplerates[] = { | |
128 | SR_HZ(100), | |
129 | SR_HZ(500), | |
130 | SR_KHZ(1), | |
131 | SR_KHZ(5), | |
132 | SR_KHZ(25), | |
133 | SR_KHZ(50), | |
134 | SR_KHZ(100), | |
135 | SR_KHZ(200), | |
136 | SR_KHZ(400), | |
137 | SR_KHZ(800), | |
138 | SR_MHZ(1), | |
139 | SR_MHZ(10), | |
140 | SR_MHZ(25), | |
141 | SR_MHZ(50), | |
142 | SR_MHZ(80), | |
143 | SR_MHZ(100), | |
144 | SR_MHZ(150), | |
145 | SR_MHZ(200), | |
146 | 0, | |
147 | }; | |
148 | ||
149 | static struct sr_samplerates samplerates = { | |
150 | SR_HZ(0), | |
151 | SR_HZ(0), | |
152 | SR_HZ(0), | |
153 | supported_samplerates, | |
154 | }; | |
155 | ||
156 | struct zp { | |
157 | uint64_t cur_samplerate; | |
158 | uint64_t period_ps; | |
159 | uint64_t limit_samples; | |
160 | int num_channels; /* TODO: This isn't initialized before it's needed :( */ | |
161 | uint64_t memory_size; | |
162 | uint8_t probe_mask; | |
163 | uint8_t trigger_mask[NUM_TRIGGER_STAGES]; | |
164 | uint8_t trigger_value[NUM_TRIGGER_STAGES]; | |
165 | // uint8_t trigger_buffer[NUM_TRIGGER_STAGES]; | |
166 | }; | |
167 | ||
168 | static int hw_set_configuration(int device_index, int capability, void *value); | |
169 | ||
170 | static unsigned int get_memory_size(int type) | |
171 | { | |
172 | if (type == MEMORY_SIZE_8K) | |
173 | return 8 * 1024; | |
174 | else if (type == MEMORY_SIZE_64K) | |
175 | return 64 * 1024; | |
176 | else if (type == MEMORY_SIZE_128K) | |
177 | return 128 * 1024; | |
178 | else if (type == MEMORY_SIZE_512K) | |
179 | return 512 * 1024; | |
180 | else | |
181 | return 0; | |
182 | } | |
183 | ||
184 | static int opendev4(struct sr_device_instance **sdi, libusb_device *dev, | |
185 | struct libusb_device_descriptor *des) | |
186 | { | |
187 | struct zp *zp; | |
188 | unsigned int i; | |
189 | int err; | |
190 | ||
191 | /* Note: sdi is non-NULL, the caller already checked this. */ | |
192 | ||
193 | if (!(zp = (*sdi)->priv)) { | |
194 | sr_err("zp: %s: (*sdi)->priv was NULL", __func__); | |
195 | return -1; | |
196 | } | |
197 | ||
198 | if ((err = libusb_get_device_descriptor(dev, des))) { | |
199 | sr_warn("failed to get device descriptor: %d", err); | |
200 | return -1; | |
201 | } | |
202 | ||
203 | if (des->idVendor != USB_VENDOR) | |
204 | return 0; | |
205 | ||
206 | if (libusb_get_bus_number(dev) == (*sdi)->usb->bus | |
207 | && libusb_get_device_address(dev) == (*sdi)->usb->address) { | |
208 | ||
209 | for (i = 0; i < ARRAY_SIZE(zeroplus_models); i++) { | |
210 | if (!(des->idProduct == zeroplus_models[i].pid)) | |
211 | continue; | |
212 | ||
213 | sr_info("Found PID=%04X (%s)", des->idProduct, | |
214 | zeroplus_models[i].model_name); | |
215 | zp->num_channels = zeroplus_models[i].channels; | |
216 | zp->memory_size = zeroplus_models[i].sample_depth * 1024; | |
217 | break; | |
218 | } | |
219 | ||
220 | if (zp->num_channels == 0) { | |
221 | sr_warn("Unknown ZeroPlus device %04X", des->idProduct); | |
222 | return -2; | |
223 | } | |
224 | ||
225 | /* Found it. */ | |
226 | if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) { | |
227 | (*sdi)->status = SR_ST_ACTIVE; | |
228 | sr_info("opened device %d on %d.%d interface %d", | |
229 | (*sdi)->index, (*sdi)->usb->bus, | |
230 | (*sdi)->usb->address, USB_INTERFACE); | |
231 | } else { | |
232 | sr_warn("failed to open device: %d", err); | |
233 | *sdi = NULL; | |
234 | } | |
235 | } | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static struct sr_device_instance *zp_open_device(int device_index) | |
241 | { | |
242 | struct sr_device_instance *sdi; | |
243 | libusb_device **devlist; | |
244 | struct libusb_device_descriptor des; | |
245 | int err, i; | |
246 | ||
247 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) | |
248 | return NULL; | |
249 | ||
250 | libusb_get_device_list(usb_context, &devlist); | |
251 | if (sdi->status == SR_ST_INACTIVE) { | |
252 | /* Find the device by vendor, product, bus and address. */ | |
253 | libusb_get_device_list(usb_context, &devlist); | |
254 | for (i = 0; devlist[i]; i++) { | |
255 | /* TODO: Error handling. */ | |
256 | err = opendev4(&sdi, devlist[i], &des); | |
257 | } | |
258 | } else { | |
259 | /* Status must be SR_ST_ACTIVE, i.e. already in use... */ | |
260 | sdi = NULL; | |
261 | } | |
262 | libusb_free_device_list(devlist, 1); | |
263 | ||
264 | if (sdi && sdi->status != SR_ST_ACTIVE) | |
265 | sdi = NULL; | |
266 | ||
267 | return sdi; | |
268 | } | |
269 | ||
270 | static void close_device(struct sr_device_instance *sdi) | |
271 | { | |
272 | if (!sdi->usb->devhdl) | |
273 | return; | |
274 | ||
275 | sr_info("closing device %d on %d.%d interface %d", sdi->index, | |
276 | sdi->usb->bus, sdi->usb->address, USB_INTERFACE); | |
277 | libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE); | |
278 | libusb_close(sdi->usb->devhdl); | |
279 | sdi->usb->devhdl = NULL; | |
280 | sdi->status = SR_ST_INACTIVE; | |
281 | } | |
282 | ||
283 | static int configure_probes(struct sr_device_instance *sdi, GSList *probes) | |
284 | { | |
285 | struct zp *zp; | |
286 | struct sr_probe *probe; | |
287 | GSList *l; | |
288 | int probe_bit, stage, i; | |
289 | char *tc; | |
290 | ||
291 | /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */ | |
292 | zp = sdi->priv; | |
293 | ||
294 | zp->probe_mask = 0; | |
295 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { | |
296 | zp->trigger_mask[i] = 0; | |
297 | zp->trigger_value[i] = 0; | |
298 | } | |
299 | ||
300 | stage = -1; | |
301 | for (l = probes; l; l = l->next) { | |
302 | probe = (struct sr_probe *)l->data; | |
303 | if (probe->enabled == FALSE) | |
304 | continue; | |
305 | probe_bit = 1 << (probe->index - 1); | |
306 | zp->probe_mask |= probe_bit; | |
307 | ||
308 | if (probe->trigger) { | |
309 | stage = 0; | |
310 | for (tc = probe->trigger; *tc; tc++) { | |
311 | zp->trigger_mask[stage] |= probe_bit; | |
312 | if (*tc == '1') | |
313 | zp->trigger_value[stage] |= probe_bit; | |
314 | stage++; | |
315 | if (stage > NUM_TRIGGER_STAGES) | |
316 | return SR_ERR; | |
317 | } | |
318 | } | |
319 | } | |
320 | ||
321 | return SR_OK; | |
322 | } | |
323 | ||
324 | /* | |
325 | * API callbacks | |
326 | */ | |
327 | ||
328 | static int hw_init(const char *deviceinfo) | |
329 | { | |
330 | struct sr_device_instance *sdi; | |
331 | struct libusb_device_descriptor des; | |
332 | libusb_device **devlist; | |
333 | int err, devcnt, i; | |
334 | struct zp *zp; | |
335 | ||
336 | /* Avoid compiler warnings. */ | |
337 | (void)deviceinfo; | |
338 | ||
339 | /* Allocate memory for our private driver context. */ | |
340 | if (!(zp = g_try_malloc(sizeof(struct zp)))) { | |
341 | sr_err("zp: %s: struct zp malloc failed", __func__); | |
342 | return 0; | |
343 | } | |
344 | ||
345 | /* Set some sane defaults. */ | |
346 | zp->cur_samplerate = 0; | |
347 | zp->period_ps = 0; | |
348 | zp->limit_samples = 0; | |
349 | zp->num_channels = 32; /* TODO: This isn't initialized before it's needed :( */ | |
350 | zp->memory_size = 0; | |
351 | zp->probe_mask = 0; | |
352 | memset(zp->trigger_mask, 0, NUM_TRIGGER_STAGES); | |
353 | memset(zp->trigger_value, 0, NUM_TRIGGER_STAGES); | |
354 | // memset(zp->trigger_buffer, 0, NUM_TRIGGER_STAGES); | |
355 | ||
356 | if (libusb_init(&usb_context) != 0) { | |
357 | sr_warn("Failed to initialize USB."); | |
358 | return 0; | |
359 | } | |
360 | ||
361 | /* Find all ZeroPlus analyzers and add them to device list. */ | |
362 | devcnt = 0; | |
363 | libusb_get_device_list(usb_context, &devlist); | |
364 | ||
365 | for (i = 0; devlist[i]; i++) { | |
366 | err = libusb_get_device_descriptor(devlist[i], &des); | |
367 | if (err != 0) { | |
368 | sr_warn("failed to get device descriptor: %d", err); | |
369 | continue; | |
370 | } | |
371 | ||
372 | if (des.idVendor == USB_VENDOR) { | |
373 | /* | |
374 | * Definitely a Zeroplus. | |
375 | * TODO: Any way to detect specific model/version in | |
376 | * the zeroplus range? | |
377 | */ | |
378 | /* Register the device with libsigrok. */ | |
379 | sdi = sr_device_instance_new(devcnt, | |
380 | SR_ST_INACTIVE, USB_VENDOR_NAME, | |
381 | USB_MODEL_NAME, USB_MODEL_VERSION); | |
382 | if (!sdi) { | |
383 | sr_err("zp: %s: sr_device_instance_new failed", | |
384 | __func__); | |
385 | return 0; | |
386 | } | |
387 | ||
388 | sdi->priv = zp; | |
389 | ||
390 | device_instances = | |
391 | g_slist_append(device_instances, sdi); | |
392 | sdi->usb = sr_usb_device_instance_new( | |
393 | libusb_get_bus_number(devlist[i]), | |
394 | libusb_get_device_address(devlist[i]), NULL); | |
395 | devcnt++; | |
396 | } | |
397 | } | |
398 | libusb_free_device_list(devlist, 1); | |
399 | ||
400 | return devcnt; | |
401 | } | |
402 | ||
403 | static int hw_opendev(int device_index) | |
404 | { | |
405 | struct sr_device_instance *sdi; | |
406 | struct zp *zp; | |
407 | int err; | |
408 | ||
409 | if (!(sdi = zp_open_device(device_index))) { | |
410 | sr_warn("unable to open device"); | |
411 | return SR_ERR; | |
412 | } | |
413 | ||
414 | /* TODO: Note: sdi is retrieved in zp_open_device(). */ | |
415 | ||
416 | if (!(zp = sdi->priv)) { | |
417 | sr_err("zp: %s: sdi->priv was NULL", __func__); | |
418 | return SR_ERR_ARG; | |
419 | } | |
420 | ||
421 | err = libusb_claim_interface(sdi->usb->devhdl, USB_INTERFACE); | |
422 | if (err != 0) { | |
423 | sr_warn("Unable to claim interface: %d", err); | |
424 | return SR_ERR; | |
425 | } | |
426 | analyzer_reset(sdi->usb->devhdl); | |
427 | analyzer_initialize(sdi->usb->devhdl); | |
428 | ||
429 | analyzer_set_memory_size(MEMORY_SIZE_512K); | |
430 | // analyzer_set_freq(g_freq, g_freq_scale); | |
431 | analyzer_set_trigger_count(1); | |
432 | // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) | |
433 | // * get_memory_size(g_memory_size)) / 100) >> 2); | |
434 | analyzer_set_ramsize_trigger_address( | |
435 | (100 * get_memory_size(MEMORY_SIZE_512K) / 100) >> 2); | |
436 | ||
437 | #if 0 | |
438 | if (g_double_mode == 1) | |
439 | analyzer_set_compression(COMPRESSION_DOUBLE); | |
440 | else if (g_compression == 1) | |
441 | analyzer_set_compression(COMPRESSION_ENABLE); | |
442 | else | |
443 | #endif | |
444 | analyzer_set_compression(COMPRESSION_NONE); | |
445 | ||
446 | if (zp->cur_samplerate == 0) { | |
447 | /* Samplerate hasn't been set. Default to the slowest one. */ | |
448 | if (hw_set_configuration(device_index, SR_HWCAP_SAMPLERATE, | |
449 | &samplerates.list[0]) == SR_ERR) | |
450 | return SR_ERR; | |
451 | } | |
452 | ||
453 | return SR_OK; | |
454 | } | |
455 | ||
456 | static int hw_closedev(int device_index) | |
457 | { | |
458 | struct sr_device_instance *sdi; | |
459 | ||
460 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
461 | sr_err("zp: %s: sdi was NULL", __func__); | |
462 | return SR_ERR; /* TODO: SR_ERR_ARG? */ | |
463 | } | |
464 | ||
465 | /* TODO */ | |
466 | close_device(sdi); | |
467 | ||
468 | return SR_OK; | |
469 | } | |
470 | ||
471 | static void hw_cleanup(void) | |
472 | { | |
473 | GSList *l; | |
474 | ||
475 | /* Properly close all devices... */ | |
476 | for (l = device_instances; l; l = l->next) | |
477 | close_device((struct sr_device_instance *)l->data); | |
478 | ||
479 | /* ...and free all their memory. */ | |
480 | for (l = device_instances; l; l = l->next) | |
481 | g_free(l->data); | |
482 | g_slist_free(device_instances); | |
483 | device_instances = NULL; | |
484 | ||
485 | if (usb_context) | |
486 | libusb_exit(usb_context); | |
487 | usb_context = NULL; | |
488 | } | |
489 | ||
490 | static void *hw_get_device_info(int device_index, int device_info_id) | |
491 | { | |
492 | struct sr_device_instance *sdi; | |
493 | struct zp *zp; | |
494 | void *info; | |
495 | ||
496 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
497 | sr_err("zp: %s: sdi was NULL", __func__); | |
498 | return NULL; | |
499 | } | |
500 | ||
501 | if (!(zp = sdi->priv)) { | |
502 | sr_err("zp: %s: sdi->priv was NULL", __func__); | |
503 | return NULL; | |
504 | } | |
505 | ||
506 | switch (device_info_id) { | |
507 | case SR_DI_INSTANCE: | |
508 | info = sdi; | |
509 | break; | |
510 | case SR_DI_NUM_PROBES: | |
511 | info = GINT_TO_POINTER(zp->num_channels); | |
512 | break; | |
513 | case SR_DI_PROBE_NAMES: | |
514 | info = probe_names; | |
515 | break; | |
516 | case SR_DI_SAMPLERATES: | |
517 | info = &samplerates; | |
518 | break; | |
519 | case SR_DI_TRIGGER_TYPES: | |
520 | info = TRIGGER_TYPES; | |
521 | break; | |
522 | case SR_DI_CUR_SAMPLERATE: | |
523 | info = &zp->cur_samplerate; | |
524 | break; | |
525 | default: | |
526 | /* Unknown device info ID, return NULL. */ | |
527 | sr_err("zp: %s: Unknown device info ID", __func__); | |
528 | info = NULL; | |
529 | break; | |
530 | } | |
531 | ||
532 | return info; | |
533 | } | |
534 | ||
535 | static int hw_get_status(int device_index) | |
536 | { | |
537 | struct sr_device_instance *sdi; | |
538 | ||
539 | sdi = sr_get_device_instance(device_instances, device_index); | |
540 | if (sdi) | |
541 | return sdi->status; | |
542 | else | |
543 | return SR_ST_NOT_FOUND; | |
544 | } | |
545 | ||
546 | static int *hw_get_capabilities(void) | |
547 | { | |
548 | return capabilities; | |
549 | } | |
550 | ||
551 | static int set_configuration_samplerate(struct sr_device_instance *sdi, | |
552 | uint64_t samplerate) | |
553 | { | |
554 | struct zp *zp; | |
555 | ||
556 | if (!sdi) { | |
557 | sr_err("zp: %s: sdi was NULL", __func__); | |
558 | return SR_ERR_ARG; | |
559 | } | |
560 | ||
561 | if (!(zp = sdi->priv)) { | |
562 | sr_err("zp: %s: sdi->priv was NULL", __func__); | |
563 | return SR_ERR_ARG; | |
564 | } | |
565 | ||
566 | sr_info("zp: Setting samplerate to %" PRIu64 "Hz.", samplerate); | |
567 | ||
568 | if (samplerate > SR_MHZ(1)) | |
569 | analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ); | |
570 | else if (samplerate > SR_KHZ(1)) | |
571 | analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ); | |
572 | else | |
573 | analyzer_set_freq(samplerate, FREQ_SCALE_HZ); | |
574 | ||
575 | zp->cur_samplerate = samplerate; | |
576 | zp->period_ps = 1000000000000 / samplerate; | |
577 | ||
578 | return SR_OK; | |
579 | } | |
580 | ||
581 | static int hw_set_configuration(int device_index, int capability, void *value) | |
582 | { | |
583 | struct sr_device_instance *sdi; | |
584 | uint64_t *tmp_u64; | |
585 | struct zp *zp; | |
586 | ||
587 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
588 | sr_err("zp: %s: sdi was NULL", __func__); | |
589 | return SR_ERR; | |
590 | } | |
591 | ||
592 | if (!(zp = sdi->priv)) { | |
593 | sr_err("zp: %s: sdi->priv was NULL", __func__); | |
594 | return SR_ERR_ARG; | |
595 | } | |
596 | ||
597 | switch (capability) { | |
598 | case SR_HWCAP_SAMPLERATE: | |
599 | tmp_u64 = value; | |
600 | return set_configuration_samplerate(sdi, *tmp_u64); | |
601 | case SR_HWCAP_PROBECONFIG: | |
602 | return configure_probes(sdi, (GSList *)value); | |
603 | case SR_HWCAP_LIMIT_SAMPLES: | |
604 | tmp_u64 = value; | |
605 | zp->limit_samples = *tmp_u64; | |
606 | return SR_OK; | |
607 | default: | |
608 | return SR_ERR; | |
609 | } | |
610 | } | |
611 | ||
612 | static int hw_start_acquisition(int device_index, gpointer session_data) | |
613 | { | |
614 | struct sr_device_instance *sdi; | |
615 | struct sr_datafeed_packet packet; | |
616 | struct sr_datafeed_logic logic; | |
617 | struct sr_datafeed_header header; | |
618 | uint64_t samples_read; | |
619 | int res; | |
620 | unsigned int packet_num; | |
621 | unsigned char *buf; | |
622 | struct zp *zp; | |
623 | ||
624 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) { | |
625 | sr_err("zp: %s: sdi was NULL", __func__); | |
626 | return SR_ERR; | |
627 | } | |
628 | ||
629 | if (!(zp = sdi->priv)) { | |
630 | sr_err("zp: %s: sdi->priv was NULL", __func__); | |
631 | return SR_ERR_ARG; | |
632 | } | |
633 | ||
634 | /* push configured settings to device */ | |
635 | analyzer_configure(sdi->usb->devhdl); | |
636 | ||
637 | analyzer_start(sdi->usb->devhdl); | |
638 | sr_info("Waiting for data"); | |
639 | analyzer_wait_data(sdi->usb->devhdl); | |
640 | ||
641 | sr_info("Stop address = 0x%x", analyzer_get_stop_address(sdi->usb->devhdl)); | |
642 | sr_info("Now address = 0x%x", analyzer_get_now_address(sdi->usb->devhdl)); | |
643 | sr_info("Trigger address = 0x%x", analyzer_get_trigger_address(sdi->usb->devhdl)); | |
644 | ||
645 | packet.type = SR_DF_HEADER; | |
646 | packet.payload = &header; | |
647 | header.feed_version = 1; | |
648 | gettimeofday(&header.starttime, NULL); | |
649 | header.samplerate = zp->cur_samplerate; | |
650 | header.num_logic_probes = zp->num_channels; | |
651 | header.num_analog_probes = 0; | |
652 | sr_session_bus(session_data, &packet); | |
653 | ||
654 | if (!(buf = g_try_malloc(PACKET_SIZE))) { | |
655 | sr_err("zp: %s: buf malloc failed", __func__); | |
656 | return SR_ERR_MALLOC; | |
657 | } | |
658 | ||
659 | samples_read = 0; | |
660 | analyzer_read_start(sdi->usb->devhdl); | |
661 | /* Send the incoming transfer to the session bus. */ | |
662 | for (packet_num = 0; packet_num < (zp->memory_size * 4 / PACKET_SIZE); | |
663 | packet_num++) { | |
664 | res = analyzer_read_data(sdi->usb->devhdl, buf, PACKET_SIZE); | |
665 | sr_info("Tried to read %llx bytes, actually read %x bytes", | |
666 | PACKET_SIZE, res); | |
667 | ||
668 | packet.type = SR_DF_LOGIC; | |
669 | packet.timeoffset = samples_read * zp->period_ps; | |
670 | packet.duration = res / 4 * zp->period_ps; | |
671 | packet.payload = &logic; | |
672 | logic.length = PACKET_SIZE; | |
673 | logic.unitsize = 4; | |
674 | logic.data = buf; | |
675 | sr_session_bus(session_data, &packet); | |
676 | samples_read += res / 4; | |
677 | } | |
678 | analyzer_read_stop(sdi->usb->devhdl); | |
679 | g_free(buf); | |
680 | ||
681 | packet.type = SR_DF_END; | |
682 | sr_session_bus(session_data, &packet); | |
683 | ||
684 | return SR_OK; | |
685 | } | |
686 | ||
687 | /* This stops acquisition on ALL devices, ignoring device_index. */ | |
688 | static void hw_stop_acquisition(int device_index, gpointer session_device_id) | |
689 | { | |
690 | struct sr_datafeed_packet packet; | |
691 | struct sr_device_instance *sdi; | |
692 | ||
693 | packet.type = SR_DF_END; | |
694 | sr_session_bus(session_device_id, &packet); | |
695 | ||
696 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) | |
697 | return; /* TODO: Cry? */ | |
698 | ||
699 | analyzer_reset(sdi->usb->devhdl); | |
700 | /* TODO: Need to cancel and free any queued up transfers. */ | |
701 | } | |
702 | ||
703 | struct sr_device_plugin zeroplus_logic_cube_plugin_info = { | |
704 | .name = "zeroplus-logic-cube", | |
705 | .longname = "Zeroplus Logic Cube LAP-C series", | |
706 | .api_version = 1, | |
707 | .init = hw_init, | |
708 | .cleanup = hw_cleanup, | |
709 | .opendev = hw_opendev, | |
710 | .closedev = hw_closedev, | |
711 | .get_device_info = hw_get_device_info, | |
712 | .get_status = hw_get_status, | |
713 | .get_capabilities = hw_get_capabilities, | |
714 | .set_configuration = hw_set_configuration, | |
715 | .start_acquisition = hw_start_acquisition, | |
716 | .stop_acquisition = hw_stop_acquisition, | |
717 | }; |