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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 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 "protocol.h" | |
21 | ||
22 | #define VENDOR_NAME "ZEROPLUS" | |
23 | #define USB_INTERFACE 0 | |
24 | #define USB_CONFIGURATION 1 | |
25 | #define NUM_TRIGGER_STAGES 4 | |
26 | #define TRIGGER_TYPE "01" | |
27 | #define PACKET_SIZE 2048 /* ?? */ | |
28 | ||
29 | //#define ZP_EXPERIMENTAL | |
30 | ||
31 | struct zp_model { | |
32 | uint16_t vid; | |
33 | uint16_t pid; | |
34 | char *model_name; | |
35 | unsigned int channels; | |
36 | unsigned int sample_depth; /* In Ksamples/channel */ | |
37 | unsigned int max_sampling_freq; | |
38 | }; | |
39 | ||
40 | /* | |
41 | * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the | |
42 | * same 128K sample depth. | |
43 | */ | |
44 | static const struct zp_model zeroplus_models[] = { | |
45 | {0x0c12, 0x7002, "LAP-16128U", 16, 128, 200}, | |
46 | {0x0c12, 0x7009, "LAP-C(16064)", 16, 64, 100}, | |
47 | {0x0c12, 0x700a, "LAP-C(16128)", 16, 128, 200}, | |
48 | {0x0c12, 0x700b, "LAP-C(32128)", 32, 128, 200}, | |
49 | {0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200}, | |
50 | {0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200}, | |
51 | {0x0c12, 0x700e, "LAP-C(16032)", 16, 32, 100}, | |
52 | {0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200}, | |
53 | { 0, 0, 0, 0, 0, 0 } | |
54 | }; | |
55 | ||
56 | static const int32_t hwcaps[] = { | |
57 | SR_CONF_LOGIC_ANALYZER, | |
58 | SR_CONF_SAMPLERATE, | |
59 | SR_CONF_TRIGGER_TYPE, | |
60 | SR_CONF_CAPTURE_RATIO, | |
61 | SR_CONF_VOLTAGE_THRESHOLD, | |
62 | SR_CONF_LIMIT_SAMPLES, | |
63 | }; | |
64 | ||
65 | /* | |
66 | * ZEROPLUS LAP-C (16032) numbers the 16 channels A0-A7 and B0-B7. | |
67 | * We currently ignore other untested/unsupported devices here. | |
68 | */ | |
69 | static const char *channel_names[] = { | |
70 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", | |
71 | "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", | |
72 | "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", | |
73 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
74 | NULL, | |
75 | }; | |
76 | ||
77 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; | |
78 | static struct sr_dev_driver *di = &zeroplus_logic_cube_driver_info; | |
79 | ||
80 | /* | |
81 | * The hardware supports more samplerates than these, but these are the | |
82 | * options hardcoded into the vendor's Windows GUI. | |
83 | */ | |
84 | ||
85 | static const uint64_t samplerates_100[] = { | |
86 | SR_HZ(100), | |
87 | SR_HZ(500), | |
88 | SR_KHZ(1), | |
89 | SR_KHZ(5), | |
90 | SR_KHZ(25), | |
91 | SR_KHZ(50), | |
92 | SR_KHZ(100), | |
93 | SR_KHZ(200), | |
94 | SR_KHZ(400), | |
95 | SR_KHZ(800), | |
96 | SR_MHZ(1), | |
97 | SR_MHZ(10), | |
98 | SR_MHZ(25), | |
99 | SR_MHZ(50), | |
100 | SR_MHZ(80), | |
101 | SR_MHZ(100), | |
102 | }; | |
103 | ||
104 | const uint64_t samplerates_200[] = { | |
105 | SR_HZ(100), | |
106 | SR_HZ(500), | |
107 | SR_KHZ(1), | |
108 | SR_KHZ(5), | |
109 | SR_KHZ(25), | |
110 | SR_KHZ(50), | |
111 | SR_KHZ(100), | |
112 | SR_KHZ(200), | |
113 | SR_KHZ(400), | |
114 | SR_KHZ(800), | |
115 | SR_MHZ(1), | |
116 | SR_MHZ(10), | |
117 | SR_MHZ(25), | |
118 | SR_MHZ(50), | |
119 | SR_MHZ(80), | |
120 | SR_MHZ(100), | |
121 | SR_MHZ(150), | |
122 | SR_MHZ(200), | |
123 | }; | |
124 | ||
125 | static int dev_close(struct sr_dev_inst *sdi); | |
126 | ||
127 | #if 0 | |
128 | static int configure_channels(const struct sr_dev_inst *sdi) | |
129 | { | |
130 | struct dev_context *devc; | |
131 | const struct sr_channel *ch; | |
132 | const GSList *l; | |
133 | int channel_bit, stage, i; | |
134 | char *tc; | |
135 | ||
136 | /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */ | |
137 | devc = sdi->priv; | |
138 | ||
139 | devc->channel_mask = 0; | |
140 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { | |
141 | devc->trigger_mask[i] = 0; | |
142 | devc->trigger_value[i] = 0; | |
143 | } | |
144 | ||
145 | stage = -1; | |
146 | for (l = sdi->channels; l; l = l->next) { | |
147 | ch = (struct sr_channel *)l->data; | |
148 | if (ch->enabled == FALSE) | |
149 | continue; | |
150 | channel_bit = 1 << (ch->index); | |
151 | devc->channel_mask |= channel_bit; | |
152 | ||
153 | if (ch->trigger) { | |
154 | stage = 0; | |
155 | for (tc = ch->trigger; *tc; tc++) { | |
156 | devc->trigger_mask[stage] |= channel_bit; | |
157 | if (*tc == '1') | |
158 | devc->trigger_value[stage] |= channel_bit; | |
159 | stage++; | |
160 | if (stage > NUM_TRIGGER_STAGES) | |
161 | return SR_ERR; | |
162 | } | |
163 | } | |
164 | } | |
165 | ||
166 | return SR_OK; | |
167 | } | |
168 | #endif | |
169 | ||
170 | static int configure_channels(const struct sr_dev_inst *sdi) | |
171 | { | |
172 | struct dev_context *devc; | |
173 | const GSList *l; | |
174 | const struct sr_channel *ch; | |
175 | char *tc; | |
176 | int type; | |
177 | ||
178 | /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */ | |
179 | devc = sdi->priv; | |
180 | ||
181 | for (l = sdi->channels; l; l = l->next) { | |
182 | ch = (struct sr_channel *)l->data; | |
183 | if (ch->enabled == FALSE) | |
184 | continue; | |
185 | ||
186 | if ((tc = ch->trigger)) { | |
187 | switch (*tc) { | |
188 | case '1': | |
189 | type = TRIGGER_HIGH; | |
190 | break; | |
191 | case '0': | |
192 | type = TRIGGER_LOW; | |
193 | break; | |
194 | #if 0 | |
195 | case 'r': | |
196 | type = TRIGGER_POSEDGE; | |
197 | break; | |
198 | case 'f': | |
199 | type = TRIGGER_NEGEDGE; | |
200 | break; | |
201 | case 'c': | |
202 | type = TRIGGER_ANYEDGE; | |
203 | break; | |
204 | #endif | |
205 | default: | |
206 | return SR_ERR; | |
207 | } | |
208 | analyzer_add_trigger(ch->index, type); | |
209 | devc->trigger = 1; | |
210 | } | |
211 | } | |
212 | ||
213 | return SR_OK; | |
214 | } | |
215 | ||
216 | SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate) | |
217 | { | |
218 | int i; | |
219 | ||
220 | for (i = 0; ARRAY_SIZE(samplerates_200); i++) | |
221 | if (samplerate == samplerates_200[i]) | |
222 | break; | |
223 | ||
224 | if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) { | |
225 | sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate); | |
226 | return SR_ERR_ARG; | |
227 | } | |
228 | ||
229 | sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate); | |
230 | ||
231 | if (samplerate >= SR_MHZ(1)) | |
232 | analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ); | |
233 | else if (samplerate >= SR_KHZ(1)) | |
234 | analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ); | |
235 | else | |
236 | analyzer_set_freq(samplerate, FREQ_SCALE_HZ); | |
237 | ||
238 | devc->cur_samplerate = samplerate; | |
239 | ||
240 | return SR_OK; | |
241 | } | |
242 | ||
243 | static int init(struct sr_context *sr_ctx) | |
244 | { | |
245 | return std_init(sr_ctx, di, LOG_PREFIX); | |
246 | } | |
247 | ||
248 | static GSList *scan(GSList *options) | |
249 | { | |
250 | struct sr_dev_inst *sdi; | |
251 | struct sr_channel *ch; | |
252 | struct drv_context *drvc; | |
253 | struct dev_context *devc; | |
254 | const struct zp_model *prof; | |
255 | struct libusb_device_descriptor des; | |
256 | libusb_device **devlist; | |
257 | GSList *devices; | |
258 | int ret, devcnt, i, j; | |
259 | ||
260 | (void)options; | |
261 | ||
262 | drvc = di->priv; | |
263 | ||
264 | devices = NULL; | |
265 | ||
266 | /* Find all ZEROPLUS analyzers and add them to device list. */ | |
267 | devcnt = 0; | |
268 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */ | |
269 | ||
270 | for (i = 0; devlist[i]; i++) { | |
271 | ret = libusb_get_device_descriptor(devlist[i], &des); | |
272 | if (ret != 0) { | |
273 | sr_err("Failed to get device descriptor: %s.", | |
274 | libusb_error_name(ret)); | |
275 | continue; | |
276 | } | |
277 | ||
278 | prof = NULL; | |
279 | for (j = 0; j < zeroplus_models[j].vid; j++) { | |
280 | if (des.idVendor == zeroplus_models[j].vid && | |
281 | des.idProduct == zeroplus_models[j].pid) { | |
282 | prof = &zeroplus_models[j]; | |
283 | } | |
284 | } | |
285 | /* Skip if the device was not found. */ | |
286 | if (!prof) | |
287 | continue; | |
288 | sr_info("Found ZEROPLUS %s.", prof->model_name); | |
289 | ||
290 | /* Register the device with libsigrok. */ | |
291 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, | |
292 | VENDOR_NAME, prof->model_name, NULL))) { | |
293 | sr_err("%s: sr_dev_inst_new failed", __func__); | |
294 | return NULL; | |
295 | } | |
296 | sdi->driver = di; | |
297 | ||
298 | /* Allocate memory for our private driver context. */ | |
299 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
300 | sr_err("Device context malloc failed."); | |
301 | return NULL; | |
302 | } | |
303 | ||
304 | sdi->priv = devc; | |
305 | devc->prof = prof; | |
306 | devc->num_channels = prof->channels; | |
307 | #ifdef ZP_EXPERIMENTAL | |
308 | devc->max_sample_depth = 128 * 1024; | |
309 | devc->max_samplerate = 200; | |
310 | #else | |
311 | devc->max_sample_depth = prof->sample_depth * 1024; | |
312 | devc->max_samplerate = prof->max_sampling_freq; | |
313 | #endif | |
314 | devc->max_samplerate *= SR_MHZ(1); | |
315 | devc->memory_size = MEMORY_SIZE_8K; | |
316 | // memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES); | |
317 | ||
318 | /* Fill in channellist according to this device's profile. */ | |
319 | for (j = 0; j < devc->num_channels; j++) { | |
320 | if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, | |
321 | channel_names[j]))) | |
322 | return NULL; | |
323 | sdi->channels = g_slist_append(sdi->channels, ch); | |
324 | } | |
325 | ||
326 | devices = g_slist_append(devices, sdi); | |
327 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
328 | sdi->inst_type = SR_INST_USB; | |
329 | sdi->conn = sr_usb_dev_inst_new( | |
330 | libusb_get_bus_number(devlist[i]), | |
331 | libusb_get_device_address(devlist[i]), NULL); | |
332 | devcnt++; | |
333 | ||
334 | } | |
335 | libusb_free_device_list(devlist, 1); | |
336 | ||
337 | return devices; | |
338 | } | |
339 | ||
340 | static GSList *dev_list(void) | |
341 | { | |
342 | return ((struct drv_context *)(di->priv))->instances; | |
343 | } | |
344 | ||
345 | static int dev_open(struct sr_dev_inst *sdi) | |
346 | { | |
347 | struct dev_context *devc; | |
348 | struct drv_context *drvc; | |
349 | struct sr_usb_dev_inst *usb; | |
350 | libusb_device **devlist, *dev; | |
351 | struct libusb_device_descriptor des; | |
352 | int device_count, ret, i; | |
353 | ||
354 | drvc = di->priv; | |
355 | usb = sdi->conn; | |
356 | ||
357 | if (!(devc = sdi->priv)) { | |
358 | sr_err("%s: sdi->priv was NULL", __func__); | |
359 | return SR_ERR_ARG; | |
360 | } | |
361 | ||
362 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, | |
363 | &devlist); | |
364 | if (device_count < 0) { | |
365 | sr_err("Failed to retrieve device list."); | |
366 | return SR_ERR; | |
367 | } | |
368 | ||
369 | dev = NULL; | |
370 | for (i = 0; i < device_count; i++) { | |
371 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
372 | sr_err("Failed to get device descriptor: %s.", | |
373 | libusb_error_name(ret)); | |
374 | continue; | |
375 | } | |
376 | if (libusb_get_bus_number(devlist[i]) == usb->bus | |
377 | && libusb_get_device_address(devlist[i]) == usb->address) { | |
378 | dev = devlist[i]; | |
379 | break; | |
380 | } | |
381 | } | |
382 | if (!dev) { | |
383 | sr_err("Device on bus %d address %d disappeared!", | |
384 | usb->bus, usb->address); | |
385 | return SR_ERR; | |
386 | } | |
387 | ||
388 | if (!(ret = libusb_open(dev, &(usb->devhdl)))) { | |
389 | sdi->status = SR_ST_ACTIVE; | |
390 | sr_info("Opened device %d on %d.%d interface %d.", | |
391 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
392 | } else { | |
393 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
394 | return SR_ERR; | |
395 | } | |
396 | ||
397 | ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION); | |
398 | if (ret < 0) { | |
399 | sr_err("Unable to set USB configuration %d: %s.", | |
400 | USB_CONFIGURATION, libusb_error_name(ret)); | |
401 | return SR_ERR; | |
402 | } | |
403 | ||
404 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
405 | if (ret != 0) { | |
406 | sr_err("Unable to claim interface: %s.", | |
407 | libusb_error_name(ret)); | |
408 | return SR_ERR; | |
409 | } | |
410 | ||
411 | /* Set default configuration after power on. */ | |
412 | if (analyzer_read_status(usb->devhdl) == 0) | |
413 | analyzer_configure(usb->devhdl); | |
414 | ||
415 | analyzer_reset(usb->devhdl); | |
416 | analyzer_initialize(usb->devhdl); | |
417 | ||
418 | //analyzer_set_memory_size(MEMORY_SIZE_512K); | |
419 | // analyzer_set_freq(g_freq, g_freq_scale); | |
420 | analyzer_set_trigger_count(1); | |
421 | // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) | |
422 | // * get_memory_size(g_memory_size)) / 100) >> 2); | |
423 | ||
424 | #if 0 | |
425 | if (g_double_mode == 1) | |
426 | analyzer_set_compression(COMPRESSION_DOUBLE); | |
427 | else if (g_compression == 1) | |
428 | analyzer_set_compression(COMPRESSION_ENABLE); | |
429 | else | |
430 | #endif | |
431 | analyzer_set_compression(COMPRESSION_NONE); | |
432 | ||
433 | if (devc->cur_samplerate == 0) { | |
434 | /* Samplerate hasn't been set. Default to 1MHz. */ | |
435 | analyzer_set_freq(1, FREQ_SCALE_MHZ); | |
436 | devc->cur_samplerate = SR_MHZ(1); | |
437 | } | |
438 | ||
439 | if (devc->cur_threshold == 0) | |
440 | set_voltage_threshold(devc, 1.5); | |
441 | ||
442 | return SR_OK; | |
443 | } | |
444 | ||
445 | static int dev_close(struct sr_dev_inst *sdi) | |
446 | { | |
447 | struct sr_usb_dev_inst *usb; | |
448 | ||
449 | usb = sdi->conn; | |
450 | ||
451 | if (!usb->devhdl) | |
452 | return SR_ERR; | |
453 | ||
454 | sr_info("Closing device %d on %d.%d interface %d.", sdi->index, | |
455 | usb->bus, usb->address, USB_INTERFACE); | |
456 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
457 | libusb_reset_device(usb->devhdl); | |
458 | libusb_close(usb->devhdl); | |
459 | usb->devhdl = NULL; | |
460 | sdi->status = SR_ST_INACTIVE; | |
461 | ||
462 | return SR_OK; | |
463 | } | |
464 | ||
465 | static int cleanup(void) | |
466 | { | |
467 | return std_dev_clear(di, NULL); | |
468 | } | |
469 | ||
470 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, | |
471 | const struct sr_channel_group *cg) | |
472 | { | |
473 | struct dev_context *devc; | |
474 | ||
475 | (void)cg; | |
476 | ||
477 | switch (id) { | |
478 | case SR_CONF_SAMPLERATE: | |
479 | if (sdi) { | |
480 | devc = sdi->priv; | |
481 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
482 | sr_spew("Returning samplerate: %" PRIu64 "Hz.", | |
483 | devc->cur_samplerate); | |
484 | } else | |
485 | return SR_ERR_ARG; | |
486 | break; | |
487 | case SR_CONF_CAPTURE_RATIO: | |
488 | if (sdi) { | |
489 | devc = sdi->priv; | |
490 | *data = g_variant_new_uint64(devc->capture_ratio); | |
491 | } else | |
492 | return SR_ERR_ARG; | |
493 | break; | |
494 | case SR_CONF_VOLTAGE_THRESHOLD: | |
495 | if (sdi) { | |
496 | GVariant *range[2]; | |
497 | devc = sdi->priv; | |
498 | range[0] = g_variant_new_double(devc->cur_threshold); | |
499 | range[1] = g_variant_new_double(devc->cur_threshold); | |
500 | *data = g_variant_new_tuple(range, 2); | |
501 | } else | |
502 | return SR_ERR_ARG; | |
503 | break; | |
504 | default: | |
505 | return SR_ERR_NA; | |
506 | } | |
507 | ||
508 | return SR_OK; | |
509 | } | |
510 | ||
511 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
512 | const struct sr_channel_group *cg) | |
513 | { | |
514 | struct dev_context *devc; | |
515 | gdouble low, high; | |
516 | ||
517 | (void)cg; | |
518 | ||
519 | if (sdi->status != SR_ST_ACTIVE) | |
520 | return SR_ERR_DEV_CLOSED; | |
521 | ||
522 | if (!(devc = sdi->priv)) { | |
523 | sr_err("%s: sdi->priv was NULL", __func__); | |
524 | return SR_ERR_ARG; | |
525 | } | |
526 | ||
527 | switch (id) { | |
528 | case SR_CONF_SAMPLERATE: | |
529 | return zp_set_samplerate(devc, g_variant_get_uint64(data)); | |
530 | case SR_CONF_LIMIT_SAMPLES: | |
531 | return set_limit_samples(devc, g_variant_get_uint64(data)); | |
532 | case SR_CONF_CAPTURE_RATIO: | |
533 | return set_capture_ratio(devc, g_variant_get_uint64(data)); | |
534 | case SR_CONF_VOLTAGE_THRESHOLD: | |
535 | g_variant_get(data, "(dd)", &low, &high); | |
536 | return set_voltage_threshold(devc, (low + high) / 2.0); | |
537 | default: | |
538 | return SR_ERR_NA; | |
539 | } | |
540 | ||
541 | return SR_OK; | |
542 | } | |
543 | ||
544 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
545 | const struct sr_channel_group *cg) | |
546 | { | |
547 | struct dev_context *devc; | |
548 | GVariant *gvar, *grange[2]; | |
549 | GVariantBuilder gvb; | |
550 | double v; | |
551 | GVariant *range[2]; | |
552 | ||
553 | (void)cg; | |
554 | ||
555 | switch (key) { | |
556 | case SR_CONF_DEVICE_OPTIONS: | |
557 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
558 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
559 | break; | |
560 | case SR_CONF_SAMPLERATE: | |
561 | devc = sdi->priv; | |
562 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
563 | if (devc->prof->max_sampling_freq == 100) { | |
564 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
565 | samplerates_100, ARRAY_SIZE(samplerates_100), | |
566 | sizeof(uint64_t)); | |
567 | } else if (devc->prof->max_sampling_freq == 200) { | |
568 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
569 | samplerates_200, ARRAY_SIZE(samplerates_200), | |
570 | sizeof(uint64_t)); | |
571 | } else { | |
572 | sr_err("Internal error: Unknown max. samplerate: %d.", | |
573 | devc->prof->max_sampling_freq); | |
574 | return SR_ERR_ARG; | |
575 | } | |
576 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
577 | *data = g_variant_builder_end(&gvb); | |
578 | break; | |
579 | case SR_CONF_TRIGGER_TYPE: | |
580 | *data = g_variant_new_string(TRIGGER_TYPE); | |
581 | break; | |
582 | case SR_CONF_VOLTAGE_THRESHOLD: | |
583 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
584 | for (v = -6.0; v <= 6.0; v += 0.1) { | |
585 | range[0] = g_variant_new_double(v); | |
586 | range[1] = g_variant_new_double(v); | |
587 | gvar = g_variant_new_tuple(range, 2); | |
588 | g_variant_builder_add_value(&gvb, gvar); | |
589 | } | |
590 | *data = g_variant_builder_end(&gvb); | |
591 | break; | |
592 | case SR_CONF_LIMIT_SAMPLES: | |
593 | if (!sdi) | |
594 | return SR_ERR_ARG; | |
595 | devc = sdi->priv; | |
596 | grange[0] = g_variant_new_uint64(0); | |
597 | grange[1] = g_variant_new_uint64(devc->max_sample_depth); | |
598 | *data = g_variant_new_tuple(grange, 2); | |
599 | break; | |
600 | default: | |
601 | return SR_ERR_NA; | |
602 | } | |
603 | ||
604 | return SR_OK; | |
605 | } | |
606 | ||
607 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
608 | void *cb_data) | |
609 | { | |
610 | struct dev_context *devc; | |
611 | struct sr_usb_dev_inst *usb; | |
612 | struct sr_datafeed_packet packet; | |
613 | struct sr_datafeed_logic logic; | |
614 | unsigned int samples_read; | |
615 | int res; | |
616 | unsigned int packet_num, n; | |
617 | unsigned char *buf; | |
618 | unsigned int status; | |
619 | unsigned int stop_address; | |
620 | unsigned int now_address; | |
621 | unsigned int trigger_address; | |
622 | unsigned int trigger_offset; | |
623 | unsigned int triggerbar; | |
624 | unsigned int ramsize_trigger; | |
625 | unsigned int memory_size; | |
626 | unsigned int valid_samples; | |
627 | unsigned int discard; | |
628 | int trigger_now; | |
629 | ||
630 | if (sdi->status != SR_ST_ACTIVE) | |
631 | return SR_ERR_DEV_CLOSED; | |
632 | ||
633 | if (!(devc = sdi->priv)) { | |
634 | sr_err("%s: sdi->priv was NULL", __func__); | |
635 | return SR_ERR_ARG; | |
636 | } | |
637 | ||
638 | if (configure_channels(sdi) != SR_OK) { | |
639 | sr_err("Failed to configure channels."); | |
640 | return SR_ERR; | |
641 | } | |
642 | ||
643 | usb = sdi->conn; | |
644 | ||
645 | set_triggerbar(devc); | |
646 | ||
647 | /* Push configured settings to device. */ | |
648 | analyzer_configure(usb->devhdl); | |
649 | ||
650 | analyzer_start(usb->devhdl); | |
651 | sr_info("Waiting for data."); | |
652 | analyzer_wait_data(usb->devhdl); | |
653 | ||
654 | status = analyzer_read_status(usb->devhdl); | |
655 | stop_address = analyzer_get_stop_address(usb->devhdl); | |
656 | now_address = analyzer_get_now_address(usb->devhdl); | |
657 | trigger_address = analyzer_get_trigger_address(usb->devhdl); | |
658 | ||
659 | triggerbar = analyzer_get_triggerbar_address(); | |
660 | ramsize_trigger = analyzer_get_ramsize_trigger_address(); | |
661 | ||
662 | n = get_memory_size(devc->memory_size); | |
663 | memory_size = n / 4; | |
664 | ||
665 | sr_info("Status = 0x%x.", status); | |
666 | sr_info("Stop address = 0x%x.", stop_address); | |
667 | sr_info("Now address = 0x%x.", now_address); | |
668 | sr_info("Trigger address = 0x%x.", trigger_address); | |
669 | sr_info("Triggerbar address = 0x%x.", triggerbar); | |
670 | sr_info("Ramsize trigger = 0x%x.", ramsize_trigger); | |
671 | sr_info("Memory size = 0x%x.", memory_size); | |
672 | ||
673 | /* Send header packet to the session bus. */ | |
674 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
675 | ||
676 | /* Check for empty capture */ | |
677 | if ((status & STATUS_READY) && !stop_address) { | |
678 | packet.type = SR_DF_END; | |
679 | sr_session_send(cb_data, &packet); | |
680 | return SR_OK; | |
681 | } | |
682 | ||
683 | if (!(buf = g_try_malloc(PACKET_SIZE))) { | |
684 | sr_err("Packet buffer malloc failed."); | |
685 | return SR_ERR_MALLOC; | |
686 | } | |
687 | ||
688 | /* Check if the trigger is in the samples we are throwing away */ | |
689 | trigger_now = now_address == trigger_address || | |
690 | ((now_address + 1) % memory_size) == trigger_address; | |
691 | ||
692 | /* | |
693 | * STATUS_READY doesn't clear until now_address advances past | |
694 | * addr 0, but for our logic, clear it in that case | |
695 | */ | |
696 | if (!now_address) | |
697 | status &= ~STATUS_READY; | |
698 | ||
699 | analyzer_read_start(usb->devhdl); | |
700 | ||
701 | /* Calculate how much data to discard */ | |
702 | discard = 0; | |
703 | if (status & STATUS_READY) { | |
704 | /* | |
705 | * We haven't wrapped around, we need to throw away data from | |
706 | * our current position to the end of the buffer. | |
707 | * Additionally, the first two samples captured are always | |
708 | * bogus. | |
709 | */ | |
710 | discard += memory_size - now_address + 2; | |
711 | now_address = 2; | |
712 | } | |
713 | ||
714 | /* If we have more samples than we need, discard them */ | |
715 | valid_samples = (stop_address - now_address) % memory_size; | |
716 | if (valid_samples > ramsize_trigger + triggerbar) { | |
717 | discard += valid_samples - (ramsize_trigger + triggerbar); | |
718 | now_address += valid_samples - (ramsize_trigger + triggerbar); | |
719 | } | |
720 | ||
721 | sr_info("Need to discard %d samples.", discard); | |
722 | ||
723 | /* Calculate how far in the trigger is */ | |
724 | if (trigger_now) | |
725 | trigger_offset = 0; | |
726 | else | |
727 | trigger_offset = (trigger_address - now_address) % memory_size; | |
728 | ||
729 | /* Recalculate the number of samples available */ | |
730 | valid_samples = (stop_address - now_address) % memory_size; | |
731 | ||
732 | /* Send the incoming transfer to the session bus. */ | |
733 | samples_read = 0; | |
734 | for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) { | |
735 | unsigned int len; | |
736 | unsigned int buf_offset; | |
737 | ||
738 | res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE); | |
739 | sr_info("Tried to read %d bytes, actually read %d bytes.", | |
740 | PACKET_SIZE, res); | |
741 | ||
742 | if (discard >= PACKET_SIZE / 4) { | |
743 | discard -= PACKET_SIZE / 4; | |
744 | continue; | |
745 | } | |
746 | ||
747 | len = PACKET_SIZE - discard * 4; | |
748 | buf_offset = discard * 4; | |
749 | discard = 0; | |
750 | ||
751 | /* Check if we've read all the samples */ | |
752 | if (samples_read + len / 4 >= valid_samples) | |
753 | len = (valid_samples - samples_read) * 4; | |
754 | if (!len) | |
755 | break; | |
756 | ||
757 | if (samples_read < trigger_offset && | |
758 | samples_read + len / 4 > trigger_offset) { | |
759 | /* Send out samples remaining before trigger */ | |
760 | packet.type = SR_DF_LOGIC; | |
761 | packet.payload = &logic; | |
762 | logic.length = (trigger_offset - samples_read) * 4; | |
763 | logic.unitsize = 4; | |
764 | logic.data = buf + buf_offset; | |
765 | sr_session_send(cb_data, &packet); | |
766 | len -= logic.length; | |
767 | samples_read += logic.length / 4; | |
768 | buf_offset += logic.length; | |
769 | } | |
770 | ||
771 | if (samples_read == trigger_offset) { | |
772 | /* Send out trigger */ | |
773 | packet.type = SR_DF_TRIGGER; | |
774 | packet.payload = NULL; | |
775 | sr_session_send(cb_data, &packet); | |
776 | } | |
777 | ||
778 | /* Send out data (or data after trigger) */ | |
779 | packet.type = SR_DF_LOGIC; | |
780 | packet.payload = &logic; | |
781 | logic.length = len; | |
782 | logic.unitsize = 4; | |
783 | logic.data = buf + buf_offset; | |
784 | sr_session_send(cb_data, &packet); | |
785 | samples_read += len / 4; | |
786 | } | |
787 | analyzer_read_stop(usb->devhdl); | |
788 | g_free(buf); | |
789 | ||
790 | packet.type = SR_DF_END; | |
791 | sr_session_send(cb_data, &packet); | |
792 | ||
793 | return SR_OK; | |
794 | } | |
795 | ||
796 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ | |
797 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
798 | { | |
799 | struct dev_context *devc; | |
800 | struct sr_usb_dev_inst *usb; | |
801 | struct sr_datafeed_packet packet; | |
802 | ||
803 | packet.type = SR_DF_END; | |
804 | sr_session_send(cb_data, &packet); | |
805 | ||
806 | if (!(devc = sdi->priv)) { | |
807 | sr_err("%s: sdi->priv was NULL", __func__); | |
808 | return SR_ERR_BUG; | |
809 | } | |
810 | ||
811 | usb = sdi->conn; | |
812 | analyzer_reset(usb->devhdl); | |
813 | /* TODO: Need to cancel and free any queued up transfers. */ | |
814 | ||
815 | return SR_OK; | |
816 | } | |
817 | ||
818 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = { | |
819 | .name = "zeroplus-logic-cube", | |
820 | .longname = "ZEROPLUS Logic Cube LAP-C series", | |
821 | .api_version = 1, | |
822 | .init = init, | |
823 | .cleanup = cleanup, | |
824 | .scan = scan, | |
825 | .dev_list = dev_list, | |
826 | .dev_clear = NULL, | |
827 | .config_get = config_get, | |
828 | .config_set = config_set, | |
829 | .config_list = config_list, | |
830 | .dev_open = dev_open, | |
831 | .dev_close = dev_close, | |
832 | .dev_acquisition_start = dev_acquisition_start, | |
833 | .dev_acquisition_stop = dev_acquisition_stop, | |
834 | .priv = NULL, | |
835 | }; |