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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 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 <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | #define SERIALCOMM "115200/8n1" | |
24 | ||
25 | static const uint32_t drvopts[] = { | |
26 | SR_CONF_LOGIC_ANALYZER, | |
27 | }; | |
28 | ||
29 | static const uint32_t scanopts[] = { | |
30 | SR_CONF_CONN, | |
31 | SR_CONF_SERIALCOMM, | |
32 | }; | |
33 | ||
34 | static const uint32_t devopts[] = { | |
35 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
36 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
37 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
38 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
39 | SR_CONF_EXTERNAL_CLOCK | SR_CONF_SET, | |
40 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
41 | SR_CONF_SWAP | SR_CONF_SET, | |
42 | SR_CONF_RLE | SR_CONF_GET | SR_CONF_SET, | |
43 | }; | |
44 | ||
45 | static const int32_t trigger_matches[] = { | |
46 | SR_TRIGGER_ZERO, | |
47 | SR_TRIGGER_ONE, | |
48 | }; | |
49 | ||
50 | #define STR_PATTERN_NONE "None" | |
51 | #define STR_PATTERN_EXTERNAL "External" | |
52 | #define STR_PATTERN_INTERNAL "Internal" | |
53 | ||
54 | /* Supported methods of test pattern outputs */ | |
55 | enum { | |
56 | /** | |
57 | * Capture pins 31:16 (unbuffered wing) output a test pattern | |
58 | * that can captured on pins 0:15. | |
59 | */ | |
60 | PATTERN_EXTERNAL, | |
61 | ||
62 | /** Route test pattern internally to capture buffer. */ | |
63 | PATTERN_INTERNAL, | |
64 | }; | |
65 | ||
66 | static const char *patterns[] = { | |
67 | STR_PATTERN_NONE, | |
68 | STR_PATTERN_EXTERNAL, | |
69 | STR_PATTERN_INTERNAL, | |
70 | }; | |
71 | ||
72 | /* Channels are numbered 0-31 (on the PCB silkscreen). */ | |
73 | SR_PRIV const char *ols_channel_names[] = { | |
74 | "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", | |
75 | "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", | |
76 | "24", "25", "26", "27", "28", "29", "30", "31", | |
77 | }; | |
78 | ||
79 | /* Default supported samplerates, can be overridden by device metadata. */ | |
80 | static const uint64_t samplerates[] = { | |
81 | SR_HZ(10), | |
82 | SR_MHZ(200), | |
83 | SR_HZ(1), | |
84 | }; | |
85 | ||
86 | #define RESPONSE_DELAY_US (10 * 1000) | |
87 | ||
88 | SR_PRIV struct sr_dev_driver ols_driver_info; | |
89 | ||
90 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
91 | { | |
92 | struct sr_config *src; | |
93 | struct sr_dev_inst *sdi; | |
94 | struct drv_context *drvc; | |
95 | struct sr_serial_dev_inst *serial; | |
96 | GSList *l, *devices; | |
97 | int ret; | |
98 | unsigned int i; | |
99 | const char *conn, *serialcomm; | |
100 | char buf[8]; | |
101 | ||
102 | drvc = di->context; | |
103 | ||
104 | devices = NULL; | |
105 | ||
106 | conn = serialcomm = NULL; | |
107 | for (l = options; l; l = l->next) { | |
108 | src = l->data; | |
109 | switch (src->key) { | |
110 | case SR_CONF_CONN: | |
111 | conn = g_variant_get_string(src->data, NULL); | |
112 | break; | |
113 | case SR_CONF_SERIALCOMM: | |
114 | serialcomm = g_variant_get_string(src->data, NULL); | |
115 | break; | |
116 | } | |
117 | } | |
118 | if (!conn) | |
119 | return NULL; | |
120 | ||
121 | if (!serialcomm) | |
122 | serialcomm = SERIALCOMM; | |
123 | ||
124 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
125 | ||
126 | /* The discovery procedure is like this: first send the Reset | |
127 | * command (0x00) 5 times, since the device could be anywhere | |
128 | * in a 5-byte command. Then send the ID command (0x02). | |
129 | * If the device responds with 4 bytes ("OLS1" or "SLA1"), we | |
130 | * have a match. | |
131 | */ | |
132 | sr_info("Probing %s.", conn); | |
133 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
134 | return NULL; | |
135 | ||
136 | ret = SR_OK; | |
137 | for (i = 0; i < 5; i++) { | |
138 | if ((ret = send_shortcommand(serial, CMD_RESET)) != SR_OK) { | |
139 | sr_err("Port %s is not writable.", conn); | |
140 | break; | |
141 | } | |
142 | } | |
143 | if (ret != SR_OK) { | |
144 | serial_close(serial); | |
145 | sr_err("Could not use port %s. Quitting.", conn); | |
146 | return NULL; | |
147 | } | |
148 | send_shortcommand(serial, CMD_ID); | |
149 | ||
150 | g_usleep(RESPONSE_DELAY_US); | |
151 | ||
152 | if (sp_input_waiting(serial->data) == 0) { | |
153 | sr_dbg("Didn't get any reply."); | |
154 | return NULL; | |
155 | } | |
156 | ||
157 | ret = serial_read_blocking(serial, buf, 4, serial_timeout(serial, 4)); | |
158 | if (ret != 4) { | |
159 | sr_err("Invalid reply (expected 4 bytes, got %d).", ret); | |
160 | return NULL; | |
161 | } | |
162 | ||
163 | if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) { | |
164 | sr_err("Invalid reply (expected '1SLO' or '1ALS', got " | |
165 | "'%c%c%c%c').", buf[0], buf[1], buf[2], buf[3]); | |
166 | return NULL; | |
167 | } | |
168 | ||
169 | /* Definitely using the OLS protocol, check if it supports | |
170 | * the metadata command. | |
171 | */ | |
172 | send_shortcommand(serial, CMD_METADATA); | |
173 | ||
174 | g_usleep(RESPONSE_DELAY_US); | |
175 | ||
176 | if (sp_input_waiting(serial->data) != 0) { | |
177 | /* Got metadata. */ | |
178 | sdi = get_metadata(serial); | |
179 | } else { | |
180 | /* Not an OLS -- some other board that uses the sump protocol. */ | |
181 | sr_info("Device does not support metadata."); | |
182 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
183 | sdi->status = SR_ST_INACTIVE; | |
184 | sdi->vendor = g_strdup("Sump"); | |
185 | sdi->model = g_strdup("Logic Analyzer"); | |
186 | sdi->version = g_strdup("v1.0"); | |
187 | sdi->driver = di; | |
188 | for (i = 0; i < ARRAY_SIZE(ols_channel_names); i++) | |
189 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, | |
190 | ols_channel_names[i]); | |
191 | sdi->priv = ols_dev_new(); | |
192 | } | |
193 | /* Configure samplerate and divider. */ | |
194 | if (ols_set_samplerate(sdi, DEFAULT_SAMPLERATE) != SR_OK) | |
195 | sr_dbg("Failed to set default samplerate (%"PRIu64").", | |
196 | DEFAULT_SAMPLERATE); | |
197 | sdi->inst_type = SR_INST_SERIAL; | |
198 | sdi->conn = serial; | |
199 | ||
200 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
201 | devices = g_slist_append(devices, sdi); | |
202 | ||
203 | serial_close(serial); | |
204 | ||
205 | return devices; | |
206 | } | |
207 | ||
208 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
209 | const struct sr_channel_group *cg) | |
210 | { | |
211 | struct dev_context *devc; | |
212 | ||
213 | (void)cg; | |
214 | ||
215 | if (!sdi) | |
216 | return SR_ERR_ARG; | |
217 | ||
218 | devc = sdi->priv; | |
219 | switch (key) { | |
220 | case SR_CONF_SAMPLERATE: | |
221 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
222 | break; | |
223 | case SR_CONF_CAPTURE_RATIO: | |
224 | *data = g_variant_new_uint64(devc->capture_ratio); | |
225 | break; | |
226 | case SR_CONF_LIMIT_SAMPLES: | |
227 | *data = g_variant_new_uint64(devc->limit_samples); | |
228 | break; | |
229 | case SR_CONF_PATTERN_MODE: | |
230 | if (devc->flag_reg & FLAG_EXTERNAL_TEST_MODE) | |
231 | *data = g_variant_new_string(STR_PATTERN_EXTERNAL); | |
232 | else if (devc->flag_reg & FLAG_INTERNAL_TEST_MODE) | |
233 | *data = g_variant_new_string(STR_PATTERN_INTERNAL); | |
234 | else | |
235 | *data = g_variant_new_string(STR_PATTERN_NONE); | |
236 | break; | |
237 | case SR_CONF_RLE: | |
238 | *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE); | |
239 | break; | |
240 | default: | |
241 | return SR_ERR_NA; | |
242 | } | |
243 | ||
244 | return SR_OK; | |
245 | } | |
246 | ||
247 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
248 | const struct sr_channel_group *cg) | |
249 | { | |
250 | struct dev_context *devc; | |
251 | uint16_t flag; | |
252 | uint64_t tmp_u64; | |
253 | int ret; | |
254 | const char *stropt; | |
255 | ||
256 | (void)cg; | |
257 | ||
258 | if (sdi->status != SR_ST_ACTIVE) | |
259 | return SR_ERR_DEV_CLOSED; | |
260 | ||
261 | devc = sdi->priv; | |
262 | ||
263 | switch (key) { | |
264 | case SR_CONF_SAMPLERATE: | |
265 | tmp_u64 = g_variant_get_uint64(data); | |
266 | if (tmp_u64 < samplerates[0] || tmp_u64 > samplerates[1]) | |
267 | return SR_ERR_SAMPLERATE; | |
268 | ret = ols_set_samplerate(sdi, g_variant_get_uint64(data)); | |
269 | break; | |
270 | case SR_CONF_LIMIT_SAMPLES: | |
271 | tmp_u64 = g_variant_get_uint64(data); | |
272 | if (tmp_u64 < MIN_NUM_SAMPLES) | |
273 | return SR_ERR; | |
274 | devc->limit_samples = tmp_u64; | |
275 | ret = SR_OK; | |
276 | break; | |
277 | case SR_CONF_CAPTURE_RATIO: | |
278 | devc->capture_ratio = g_variant_get_uint64(data); | |
279 | if (devc->capture_ratio < 0 || devc->capture_ratio > 100) | |
280 | ret = SR_ERR; | |
281 | else | |
282 | ret = SR_OK; | |
283 | break; | |
284 | case SR_CONF_EXTERNAL_CLOCK: | |
285 | if (g_variant_get_boolean(data)) { | |
286 | sr_info("Enabling external clock."); | |
287 | devc->flag_reg |= FLAG_CLOCK_EXTERNAL; | |
288 | } else { | |
289 | sr_info("Disabled external clock."); | |
290 | devc->flag_reg &= ~FLAG_CLOCK_EXTERNAL; | |
291 | } | |
292 | ret = SR_OK; | |
293 | break; | |
294 | case SR_CONF_PATTERN_MODE: | |
295 | stropt = g_variant_get_string(data, NULL); | |
296 | ret = SR_OK; | |
297 | flag = 0xffff; | |
298 | if (!strcmp(stropt, STR_PATTERN_NONE)) { | |
299 | sr_info("Disabling test modes."); | |
300 | flag = 0x0000; | |
301 | }else if (!strcmp(stropt, STR_PATTERN_INTERNAL)) { | |
302 | sr_info("Enabling internal test mode."); | |
303 | flag = FLAG_INTERNAL_TEST_MODE; | |
304 | } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) { | |
305 | sr_info("Enabling external test mode."); | |
306 | flag = FLAG_EXTERNAL_TEST_MODE; | |
307 | } else { | |
308 | ret = SR_ERR; | |
309 | } | |
310 | if (flag != 0xffff) { | |
311 | devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE); | |
312 | devc->flag_reg |= flag; | |
313 | } | |
314 | break; | |
315 | case SR_CONF_SWAP: | |
316 | if (g_variant_get_boolean(data)) { | |
317 | sr_info("Enabling channel swapping."); | |
318 | devc->flag_reg |= FLAG_SWAP_CHANNELS; | |
319 | } else { | |
320 | sr_info("Disabling channel swapping."); | |
321 | devc->flag_reg &= ~FLAG_SWAP_CHANNELS; | |
322 | } | |
323 | ret = SR_OK; | |
324 | break; | |
325 | ||
326 | case SR_CONF_RLE: | |
327 | if (g_variant_get_boolean(data)) { | |
328 | sr_info("Enabling RLE."); | |
329 | devc->flag_reg |= FLAG_RLE; | |
330 | } else { | |
331 | sr_info("Disabling RLE."); | |
332 | devc->flag_reg &= ~FLAG_RLE; | |
333 | } | |
334 | ret = SR_OK; | |
335 | break; | |
336 | default: | |
337 | ret = SR_ERR_NA; | |
338 | } | |
339 | ||
340 | return ret; | |
341 | } | |
342 | ||
343 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
344 | const struct sr_channel_group *cg) | |
345 | { | |
346 | struct dev_context *devc; | |
347 | GVariant *gvar, *grange[2]; | |
348 | GVariantBuilder gvb; | |
349 | int num_ols_changrp, i; | |
350 | ||
351 | (void)cg; | |
352 | ||
353 | switch (key) { | |
354 | case SR_CONF_SCAN_OPTIONS: | |
355 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
356 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
357 | break; | |
358 | case SR_CONF_DEVICE_OPTIONS: | |
359 | if (!sdi) | |
360 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
361 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
362 | else | |
363 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
364 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
365 | break; | |
366 | case SR_CONF_SAMPLERATE: | |
367 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
368 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
369 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
370 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
371 | *data = g_variant_builder_end(&gvb); | |
372 | break; | |
373 | case SR_CONF_TRIGGER_MATCH: | |
374 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
375 | trigger_matches, ARRAY_SIZE(trigger_matches), | |
376 | sizeof(int32_t)); | |
377 | break; | |
378 | case SR_CONF_PATTERN_MODE: | |
379 | *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns)); | |
380 | break; | |
381 | case SR_CONF_LIMIT_SAMPLES: | |
382 | if (!sdi) | |
383 | return SR_ERR_ARG; | |
384 | devc = sdi->priv; | |
385 | if (devc->flag_reg & FLAG_RLE) | |
386 | return SR_ERR_NA; | |
387 | if (devc->max_samples == 0) | |
388 | /* Device didn't specify sample memory size in metadata. */ | |
389 | return SR_ERR_NA; | |
390 | /* | |
391 | * Channel groups are turned off if no channels in that group are | |
392 | * enabled, making more room for samples for the enabled group. | |
393 | */ | |
394 | ols_channel_mask(sdi); | |
395 | num_ols_changrp = 0; | |
396 | for (i = 0; i < 4; i++) { | |
397 | if (devc->channel_mask & (0xff << (i * 8))) | |
398 | num_ols_changrp++; | |
399 | } | |
400 | grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES); | |
401 | if (num_ols_changrp) | |
402 | grange[1] = g_variant_new_uint64(devc->max_samples / num_ols_changrp); | |
403 | else | |
404 | grange[1] = g_variant_new_uint64(MIN_NUM_SAMPLES); | |
405 | *data = g_variant_new_tuple(grange, 2); | |
406 | break; | |
407 | default: | |
408 | return SR_ERR_NA; | |
409 | } | |
410 | ||
411 | return SR_OK; | |
412 | } | |
413 | ||
414 | static int set_trigger(const struct sr_dev_inst *sdi, int stage) | |
415 | { | |
416 | struct dev_context *devc; | |
417 | struct sr_serial_dev_inst *serial; | |
418 | uint8_t cmd, arg[4]; | |
419 | ||
420 | devc = sdi->priv; | |
421 | serial = sdi->conn; | |
422 | ||
423 | cmd = CMD_SET_TRIGGER_MASK + stage * 4; | |
424 | arg[0] = devc->trigger_mask[stage] & 0xff; | |
425 | arg[1] = (devc->trigger_mask[stage] >> 8) & 0xff; | |
426 | arg[2] = (devc->trigger_mask[stage] >> 16) & 0xff; | |
427 | arg[3] = (devc->trigger_mask[stage] >> 24) & 0xff; | |
428 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
429 | return SR_ERR; | |
430 | ||
431 | cmd = CMD_SET_TRIGGER_VALUE + stage * 4; | |
432 | arg[0] = devc->trigger_value[stage] & 0xff; | |
433 | arg[1] = (devc->trigger_value[stage] >> 8) & 0xff; | |
434 | arg[2] = (devc->trigger_value[stage] >> 16) & 0xff; | |
435 | arg[3] = (devc->trigger_value[stage] >> 24) & 0xff; | |
436 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
437 | return SR_ERR; | |
438 | ||
439 | cmd = CMD_SET_TRIGGER_CONFIG + stage * 4; | |
440 | arg[0] = arg[1] = arg[3] = 0x00; | |
441 | arg[2] = stage; | |
442 | if (stage == devc->num_stages) | |
443 | /* Last stage, fire when this one matches. */ | |
444 | arg[3] |= TRIGGER_START; | |
445 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
446 | return SR_ERR; | |
447 | ||
448 | return SR_OK; | |
449 | } | |
450 | ||
451 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
452 | { | |
453 | struct dev_context *devc; | |
454 | struct sr_serial_dev_inst *serial; | |
455 | uint16_t samplecount, readcount, delaycount; | |
456 | uint8_t ols_changrp_mask, arg[4]; | |
457 | int num_ols_changrp; | |
458 | int ret, i; | |
459 | ||
460 | if (sdi->status != SR_ST_ACTIVE) | |
461 | return SR_ERR_DEV_CLOSED; | |
462 | ||
463 | devc = sdi->priv; | |
464 | serial = sdi->conn; | |
465 | ||
466 | ols_channel_mask(sdi); | |
467 | ||
468 | num_ols_changrp = 0; | |
469 | ols_changrp_mask = 0; | |
470 | for (i = 0; i < 4; i++) { | |
471 | if (devc->channel_mask & (0xff << (i * 8))) { | |
472 | ols_changrp_mask |= (1 << i); | |
473 | num_ols_changrp++; | |
474 | } | |
475 | } | |
476 | ||
477 | /* | |
478 | * Limit readcount to prevent reading past the end of the hardware | |
479 | * buffer. | |
480 | */ | |
481 | samplecount = MIN(devc->max_samples / num_ols_changrp, devc->limit_samples); | |
482 | readcount = samplecount / 4; | |
483 | ||
484 | /* Rather read too many samples than too few. */ | |
485 | if (samplecount % 4 != 0) | |
486 | readcount++; | |
487 | ||
488 | /* Basic triggers. */ | |
489 | if (ols_convert_trigger(sdi) != SR_OK) { | |
490 | sr_err("Failed to configure channels."); | |
491 | return SR_ERR; | |
492 | } | |
493 | if (devc->num_stages > 0) { | |
494 | delaycount = readcount * (1 - devc->capture_ratio / 100.0); | |
495 | devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages; | |
496 | for (i = 0; i <= devc->num_stages; i++) { | |
497 | sr_dbg("Setting OLS stage %d trigger.", i); | |
498 | if ((ret = set_trigger(sdi, i)) != SR_OK) | |
499 | return ret; | |
500 | } | |
501 | } else { | |
502 | /* No triggers configured, force trigger on first stage. */ | |
503 | sr_dbg("Forcing trigger at stage 0."); | |
504 | if ((ret = set_trigger(sdi, 0)) != SR_OK) | |
505 | return ret; | |
506 | delaycount = readcount; | |
507 | } | |
508 | ||
509 | /* Samplerate. */ | |
510 | sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)", | |
511 | devc->cur_samplerate, devc->cur_samplerate_divider); | |
512 | arg[0] = devc->cur_samplerate_divider & 0xff; | |
513 | arg[1] = (devc->cur_samplerate_divider & 0xff00) >> 8; | |
514 | arg[2] = (devc->cur_samplerate_divider & 0xff0000) >> 16; | |
515 | arg[3] = 0x00; | |
516 | if (send_longcommand(serial, CMD_SET_DIVIDER, arg) != SR_OK) | |
517 | return SR_ERR; | |
518 | ||
519 | /* Send sample limit and pre/post-trigger capture ratio. */ | |
520 | sr_dbg("Setting sample limit %d, trigger point at %d", | |
521 | (readcount - 1) * 4, (delaycount - 1) * 4); | |
522 | arg[0] = ((readcount - 1) & 0xff); | |
523 | arg[1] = ((readcount - 1) & 0xff00) >> 8; | |
524 | arg[2] = ((delaycount - 1) & 0xff); | |
525 | arg[3] = ((delaycount - 1) & 0xff00) >> 8; | |
526 | if (send_longcommand(serial, CMD_CAPTURE_SIZE, arg) != SR_OK) | |
527 | return SR_ERR; | |
528 | ||
529 | /* Flag register. */ | |
530 | sr_dbg("Setting intpat %s, extpat %s, RLE %s, noise_filter %s, demux %s", | |
531 | devc->flag_reg & FLAG_INTERNAL_TEST_MODE ? "on": "off", | |
532 | devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off", | |
533 | devc->flag_reg & FLAG_RLE ? "on" : "off", | |
534 | devc->flag_reg & FLAG_FILTER ? "on": "off", | |
535 | devc->flag_reg & FLAG_DEMUX ? "on" : "off"); | |
536 | /* | |
537 | * Enable/disable OLS channel groups in the flag register according | |
538 | * to the channel mask. 1 means "disable channel". | |
539 | */ | |
540 | devc->flag_reg |= ~(ols_changrp_mask << 2) & 0x3c; | |
541 | arg[0] = devc->flag_reg & 0xff; | |
542 | arg[1] = devc->flag_reg >> 8; | |
543 | arg[2] = arg[3] = 0x00; | |
544 | if (send_longcommand(serial, CMD_SET_FLAGS, arg) != SR_OK) | |
545 | return SR_ERR; | |
546 | ||
547 | /* Start acquisition on the device. */ | |
548 | if (send_shortcommand(serial, CMD_RUN) != SR_OK) | |
549 | return SR_ERR; | |
550 | ||
551 | /* Reset all operational states. */ | |
552 | devc->rle_count = devc->num_transfers = 0; | |
553 | devc->num_samples = devc->num_bytes = 0; | |
554 | devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0; | |
555 | memset(devc->sample, 0, 4); | |
556 | ||
557 | std_session_send_df_header(sdi, LOG_PREFIX); | |
558 | ||
559 | /* If the device stops sending for longer than it takes to send a byte, | |
560 | * that means it's finished. But wait at least 100 ms to be safe. | |
561 | */ | |
562 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
563 | ols_receive_data, (struct sr_dev_inst *)sdi); | |
564 | ||
565 | return SR_OK; | |
566 | } | |
567 | ||
568 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
569 | { | |
570 | abort_acquisition(sdi); | |
571 | ||
572 | return SR_OK; | |
573 | } | |
574 | ||
575 | SR_PRIV struct sr_dev_driver ols_driver_info = { | |
576 | .name = "ols", | |
577 | .longname = "Openbench Logic Sniffer", | |
578 | .api_version = 1, | |
579 | .init = std_init, | |
580 | .cleanup = std_cleanup, | |
581 | .scan = scan, | |
582 | .dev_list = std_dev_list, | |
583 | .dev_clear = NULL, | |
584 | .config_get = config_get, | |
585 | .config_set = config_set, | |
586 | .config_list = config_list, | |
587 | .dev_open = std_serial_dev_open, | |
588 | .dev_close = std_serial_dev_close, | |
589 | .dev_acquisition_start = dev_acquisition_start, | |
590 | .dev_acquisition_stop = dev_acquisition_stop, | |
591 | .context = NULL, | |
592 | }; |