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