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Commit | Line | Data |
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6239c175 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
6239c175 UH |
3 | * |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
fc96e6f8 | 5 | * Copyright (C) 2011 Olivier Fauchon <olivier@aixmarseille.com> |
c216d623 | 6 | * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com> |
7a8a1aba | 7 | * Copyright (C) 2015 Bartosz Golaszewski <bgolaszewski@baylibre.com> |
6239c175 UH |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | */ | |
23 | ||
24 | #include <stdlib.h> | |
85b5af06 | 25 | #include <unistd.h> |
6239c175 | 26 | #include <string.h> |
4374219b | 27 | #include <math.h> |
d35aaf02 UH |
28 | #ifdef _WIN32 |
29 | #include <io.h> | |
30 | #include <fcntl.h> | |
31 | #define pipe(fds) _pipe(fds, 4096, _O_BINARY) | |
32 | #endif | |
45c59c8b BV |
33 | #include "libsigrok.h" |
34 | #include "libsigrok-internal.h" | |
6239c175 | 35 | |
3544f848 | 36 | #define LOG_PREFIX "demo" |
92bcedf6 | 37 | |
3f239f08 UH |
38 | #define DEFAULT_NUM_LOGIC_CHANNELS 8 |
39 | #define DEFAULT_NUM_ANALOG_CHANNELS 4 | |
c03ed397 | 40 | |
8b2d41ed | 41 | /* The size in bytes of chunks to send through the session bus. */ |
61c39f54 | 42 | #define LOGIC_BUFSIZE 4096 |
8b2d41ed BV |
43 | /* Size of the analog pattern space per channel. */ |
44 | #define ANALOG_BUFSIZE 4096 | |
2474d87e | 45 | |
dddabe37 | 46 | #define DEFAULT_ANALOG_AMPLITUDE 25 |
4374219b DJ |
47 | #define ANALOG_SAMPLES_PER_PERIOD 20 |
48 | ||
2388ae86 | 49 | /* Logic patterns we can generate. */ |
e15f48c2 | 50 | enum { |
0d31276b | 51 | /** |
ba7dd8bb | 52 | * Spells "sigrok" across 8 channels using '0's (with '1's as |
61c39f54 | 53 | * "background") when displayed using the 'bits' output format. |
95035832 | 54 | * The pattern is repeated every 8 channels, shifted to the right |
c07f60e7 | 55 | * in time by one bit. |
0d31276b | 56 | */ |
c8f4624d | 57 | PATTERN_SIGROK, |
0d31276b | 58 | |
ba7dd8bb | 59 | /** Pseudo-random values on all channels. */ |
c8f4624d | 60 | PATTERN_RANDOM, |
0d31276b UH |
61 | |
62 | /** | |
95035832 | 63 | * Incrementing number across 8 channels. The pattern is repeated |
ba7dd8bb | 64 | * every 8 channels, shifted to the right in time by one bit. |
0d31276b | 65 | */ |
c8f4624d | 66 | PATTERN_INC, |
c03ed397 | 67 | |
ba7dd8bb | 68 | /** All channels have a low logic state. */ |
c03ed397 UH |
69 | PATTERN_ALL_LOW, |
70 | ||
ba7dd8bb | 71 | /** All channels have a high logic state. */ |
c03ed397 | 72 | PATTERN_ALL_HIGH, |
2388ae86 | 73 | }; |
8b2d41ed | 74 | |
2388ae86 BV |
75 | /* Analog patterns we can generate. */ |
76 | enum { | |
8b2d41ed BV |
77 | /** |
78 | * Square wave. | |
79 | */ | |
80 | PATTERN_SQUARE, | |
4374219b | 81 | PATTERN_SINE, |
091c9621 | 82 | PATTERN_TRIANGLE, |
9f54e0e8 | 83 | PATTERN_SAWTOOTH, |
e15f48c2 | 84 | }; |
85b5af06 | 85 | |
8b2d41ed | 86 | static const char *logic_pattern_str[] = { |
61c39f54 BV |
87 | "sigrok", |
88 | "random", | |
89 | "incremental", | |
90 | "all-low", | |
91 | "all-high", | |
92 | }; | |
93 | ||
8b2d41ed BV |
94 | static const char *analog_pattern_str[] = { |
95 | "square", | |
4374219b | 96 | "sine", |
091c9621 | 97 | "triangle", |
9f54e0e8 | 98 | "sawtooth", |
8b2d41ed BV |
99 | }; |
100 | ||
101 | struct analog_gen { | |
102 | int pattern; | |
dddabe37 | 103 | float amplitude; |
8b2d41ed BV |
104 | float pattern_data[ANALOG_BUFSIZE]; |
105 | unsigned int num_samples; | |
106 | struct sr_datafeed_analog packet; | |
7a8a1aba BG |
107 | float avg_val; /* Average value */ |
108 | unsigned num_avgs; /* Number of samples averaged */ | |
8b2d41ed BV |
109 | }; |
110 | ||
b4750a3a BV |
111 | /* Private, per-device-instance driver context. */ |
112 | struct dev_context { | |
e15f48c2 | 113 | int pipe_fds[2]; |
e0532047 | 114 | GIOChannel *channel; |
a7684294 | 115 | uint64_t cur_samplerate; |
b62bb97a | 116 | gboolean continuous; |
a7684294 JH |
117 | uint64_t limit_samples; |
118 | uint64_t limit_msec; | |
7f4975b4 BV |
119 | uint64_t logic_counter; |
120 | uint64_t analog_counter; | |
3b203673 | 121 | int64_t starttime; |
61c39f54 | 122 | uint64_t step; |
8b2d41ed | 123 | /* Logic */ |
ba7dd8bb | 124 | int32_t num_logic_channels; |
c07f60e7 | 125 | unsigned int logic_unitsize; |
660e398f | 126 | /* There is only ever one logic channel group, so its pattern goes here. */ |
c07f60e7 BV |
127 | uint8_t logic_pattern; |
128 | unsigned char logic_data[LOGIC_BUFSIZE]; | |
8b2d41ed | 129 | /* Analog */ |
ba7dd8bb | 130 | int32_t num_analog_channels; |
49224c28 | 131 | GHashTable *ch_ag; |
7a8a1aba BG |
132 | gboolean avg; /* True if averaging is enabled */ |
133 | uint64_t avg_samples; | |
c07f60e7 BV |
134 | }; |
135 | ||
1e4a7cac BV |
136 | static const uint32_t drvopts[] = { |
137 | SR_CONF_DEMO_DEV, | |
138 | SR_CONF_LOGIC_ANALYZER, | |
139 | SR_CONF_OSCILLOSCOPE, | |
140 | }; | |
141 | ||
584560f1 | 142 | static const uint32_t scanopts[] = { |
3f239f08 UH |
143 | SR_CONF_NUM_LOGIC_CHANNELS, |
144 | SR_CONF_NUM_ANALOG_CHANNELS, | |
e15f48c2 | 145 | }; |
85b5af06 | 146 | |
390795c0 | 147 | static const uint32_t devopts[] = { |
1e4a7cac | 148 | SR_CONF_CONTINUOUS | SR_CONF_SET, |
5827f61b BV |
149 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
150 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
390795c0 | 151 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
7a8a1aba BG |
152 | SR_CONF_AVERAGING | SR_CONF_GET | SR_CONF_SET, |
153 | SR_CONF_AVG_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
390795c0 BV |
154 | }; |
155 | ||
156 | static const uint32_t devopts_cg_logic[] = { | |
f12d9979 | 157 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
49224c28 BV |
158 | }; |
159 | ||
390795c0 | 160 | static const uint32_t devopts_cg_analog[] = { |
f12d9979 BV |
161 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
162 | SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET, | |
7a1da331 BV |
163 | }; |
164 | ||
d00088ca BV |
165 | static const uint64_t samplerates[] = { |
166 | SR_HZ(1), | |
167 | SR_GHZ(1), | |
168 | SR_HZ(1), | |
4bfbf9fc BV |
169 | }; |
170 | ||
329733d9 | 171 | static const uint8_t pattern_sigrok[] = { |
917e0e71 BV |
172 | 0x4c, 0x92, 0x92, 0x92, 0x64, 0x00, 0x00, 0x00, |
173 | 0x82, 0xfe, 0xfe, 0x82, 0x00, 0x00, 0x00, 0x00, | |
174 | 0x7c, 0x82, 0x82, 0x92, 0x74, 0x00, 0x00, 0x00, | |
175 | 0xfe, 0x12, 0x12, 0x32, 0xcc, 0x00, 0x00, 0x00, | |
176 | 0x7c, 0x82, 0x82, 0x82, 0x7c, 0x00, 0x00, 0x00, | |
177 | 0xfe, 0x10, 0x28, 0x44, 0x82, 0x00, 0x00, 0x00, | |
178 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
179 | 0xbe, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
180 | }; | |
181 | ||
dcf03d6d | 182 | SR_PRIV struct sr_dev_driver demo_driver_info; |
6239c175 | 183 | |
6078d2c9 | 184 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
6239c175 | 185 | |
4f840ce9 | 186 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
61136ea6 | 187 | { |
f6beaac5 | 188 | return std_init(sr_ctx, di, LOG_PREFIX); |
61136ea6 BV |
189 | } |
190 | ||
49224c28 | 191 | static void generate_analog_pattern(struct analog_gen *ag, uint64_t sample_rate) |
8b2d41ed | 192 | { |
4374219b | 193 | double t, frequency; |
8b2d41ed BV |
194 | float value; |
195 | unsigned int num_samples, i; | |
196 | int last_end; | |
197 | ||
49224c28 | 198 | sr_dbg("Generating %s pattern.", analog_pattern_str[ag->pattern]); |
4374219b | 199 | |
49224c28 | 200 | num_samples = ANALOG_BUFSIZE / sizeof(float); |
8b2d41ed | 201 | |
4374219b | 202 | switch (ag->pattern) { |
8b2d41ed | 203 | case PATTERN_SQUARE: |
dddabe37 | 204 | value = ag->amplitude; |
8b2d41ed BV |
205 | last_end = 0; |
206 | for (i = 0; i < num_samples; i++) { | |
207 | if (i % 5 == 0) | |
208 | value = -value; | |
209 | if (i % 10 == 0) | |
3772c049 | 210 | last_end = i; |
8b2d41ed BV |
211 | ag->pattern_data[i] = value; |
212 | } | |
213 | ag->num_samples = last_end; | |
214 | break; | |
4374219b DJ |
215 | |
216 | case PATTERN_SINE: | |
9d156555 | 217 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
4374219b DJ |
218 | |
219 | /* Make sure the number of samples we put out is an integer | |
220 | * multiple of our period size */ | |
221 | /* FIXME we actually need only one period. A ringbuffer would be | |
222 | * usefull here.*/ | |
223 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
224 | num_samples--; | |
225 | ||
226 | for (i = 0; i < num_samples; i++) { | |
227 | t = (double) i / (double) sample_rate; | |
dddabe37 | 228 | ag->pattern_data[i] = ag->amplitude * |
4374219b DJ |
229 | sin(2 * M_PI * frequency * t); |
230 | } | |
231 | ||
091c9621 DJ |
232 | ag->num_samples = num_samples; |
233 | break; | |
234 | ||
235 | case PATTERN_TRIANGLE: | |
9d156555 | 236 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
091c9621 DJ |
237 | |
238 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
239 | num_samples--; | |
240 | ||
241 | for (i = 0; i < num_samples; i++) { | |
242 | t = (double) i / (double) sample_rate; | |
dddabe37 | 243 | ag->pattern_data[i] = (2 * ag->amplitude / M_PI) * |
091c9621 DJ |
244 | asin(sin(2 * M_PI * frequency * t)); |
245 | } | |
246 | ||
9f54e0e8 DJ |
247 | ag->num_samples = num_samples; |
248 | break; | |
249 | ||
250 | case PATTERN_SAWTOOTH: | |
9d156555 | 251 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
9f54e0e8 DJ |
252 | |
253 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
254 | num_samples--; | |
255 | ||
256 | for (i = 0; i < num_samples; i++) { | |
257 | t = (double) i / (double) sample_rate; | |
dddabe37 | 258 | ag->pattern_data[i] = 2 * ag->amplitude * |
9f54e0e8 DJ |
259 | ((t * frequency) - floor(0.5f + t * frequency)); |
260 | } | |
261 | ||
4374219b DJ |
262 | ag->num_samples = num_samples; |
263 | break; | |
8b2d41ed BV |
264 | } |
265 | } | |
266 | ||
4f840ce9 | 267 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
6239c175 | 268 | { |
b4750a3a | 269 | struct drv_context *drvc; |
33ef7573 | 270 | struct dev_context *devc; |
c07f60e7 | 271 | struct sr_dev_inst *sdi; |
ba7dd8bb | 272 | struct sr_channel *ch; |
49224c28 | 273 | struct sr_channel_group *cg, *acg; |
c07f60e7 | 274 | struct sr_config *src; |
8b2d41ed | 275 | struct analog_gen *ag; |
c07f60e7 | 276 | GSList *devices, *l; |
ba7dd8bb UH |
277 | int num_logic_channels, num_analog_channels, pattern, i; |
278 | char channel_name[16]; | |
067d0716 | 279 | |
a873c594 | 280 | drvc = di->priv; |
4b97c74e | 281 | |
3f239f08 UH |
282 | num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS; |
283 | num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS; | |
c07f60e7 BV |
284 | for (l = options; l; l = l->next) { |
285 | src = l->data; | |
286 | switch (src->key) { | |
3f239f08 | 287 | case SR_CONF_NUM_LOGIC_CHANNELS: |
ba7dd8bb | 288 | num_logic_channels = g_variant_get_int32(src->data); |
c07f60e7 | 289 | break; |
3f239f08 | 290 | case SR_CONF_NUM_ANALOG_CHANNELS: |
ba7dd8bb | 291 | num_analog_channels = g_variant_get_int32(src->data); |
c07f60e7 BV |
292 | break; |
293 | } | |
294 | } | |
85b5af06 | 295 | |
c07f60e7 | 296 | devices = NULL; |
0af636be | 297 | |
aac29cc1 | 298 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be | 299 | sdi->status = SR_ST_ACTIVE; |
4b664cd6 | 300 | sdi->model = g_strdup("Demo device"); |
a873c594 | 301 | sdi->driver = di; |
e15f48c2 | 302 | |
49224c28 | 303 | devc = g_malloc(sizeof(struct dev_context)); |
8b2d41ed BV |
304 | devc->cur_samplerate = SR_KHZ(200); |
305 | devc->limit_samples = 0; | |
306 | devc->limit_msec = 0; | |
307 | devc->step = 0; | |
b62bb97a | 308 | devc->continuous = FALSE; |
ba7dd8bb UH |
309 | devc->num_logic_channels = num_logic_channels; |
310 | devc->logic_unitsize = (devc->num_logic_channels + 7) / 8; | |
8b2d41ed | 311 | devc->logic_pattern = PATTERN_SIGROK; |
ba7dd8bb | 312 | devc->num_analog_channels = num_analog_channels; |
7a8a1aba BG |
313 | devc->avg = FALSE; |
314 | devc->avg_samples = 0; | |
8b2d41ed | 315 | |
ba7dd8bb | 316 | /* Logic channels, all in one channel group. */ |
49224c28 | 317 | cg = g_malloc0(sizeof(struct sr_channel_group)); |
40fd0264 | 318 | cg->name = g_strdup("Logic"); |
ba7dd8bb UH |
319 | for (i = 0; i < num_logic_channels; i++) { |
320 | sprintf(channel_name, "D%d", i); | |
5e23fcab | 321 | ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name); |
ba7dd8bb | 322 | cg->channels = g_slist_append(cg->channels, ch); |
87ca93c5 | 323 | } |
40fd0264 | 324 | sdi->channel_groups = g_slist_append(NULL, cg); |
87ca93c5 | 325 | |
ba7dd8bb | 326 | /* Analog channels, channel groups and pattern generators. */ |
2b36d6c6 | 327 | pattern = 0; |
49224c28 BV |
328 | /* An "Analog" channel group with all analog channels in it. */ |
329 | acg = g_malloc0(sizeof(struct sr_channel_group)); | |
330 | acg->name = g_strdup("Analog"); | |
331 | sdi->channel_groups = g_slist_append(sdi->channel_groups, acg); | |
332 | ||
333 | devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal); | |
ba7dd8bb | 334 | for (i = 0; i < num_analog_channels; i++) { |
49224c28 | 335 | snprintf(channel_name, 16, "A%d", i); |
5e23fcab | 336 | ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG, |
49224c28 | 337 | TRUE, channel_name); |
49224c28 | 338 | acg->channels = g_slist_append(acg->channels, ch); |
c07f60e7 | 339 | |
49224c28 BV |
340 | /* Every analog channel gets its own channel group as well. */ |
341 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
ba7dd8bb UH |
342 | cg->name = g_strdup(channel_name); |
343 | cg->channels = g_slist_append(NULL, ch); | |
49224c28 | 344 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); |
85b5af06 | 345 | |
49224c28 BV |
346 | /* Every channel gets a generator struct. */ |
347 | ag = g_malloc(sizeof(struct analog_gen)); | |
dddabe37 | 348 | ag->amplitude = DEFAULT_ANALOG_AMPLITUDE; |
ba7dd8bb | 349 | ag->packet.channels = cg->channels; |
8b2d41ed BV |
350 | ag->packet.mq = 0; |
351 | ag->packet.mqflags = 0; | |
352 | ag->packet.unit = SR_UNIT_VOLT; | |
353 | ag->packet.data = ag->pattern_data; | |
2b36d6c6 | 354 | ag->pattern = pattern; |
7a8a1aba BG |
355 | ag->avg_val = 0.0f; |
356 | ag->num_avgs = 0; | |
49224c28 | 357 | g_hash_table_insert(devc->ch_ag, ch, ag); |
2b36d6c6 BV |
358 | |
359 | if (++pattern == ARRAY_SIZE(analog_pattern_str)) | |
360 | pattern = 0; | |
33ef7573 | 361 | } |
33ef7573 JH |
362 | |
363 | sdi->priv = devc; | |
8b2d41ed BV |
364 | devices = g_slist_append(devices, sdi); |
365 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
33ef7573 | 366 | |
067d0716 | 367 | return devices; |
6239c175 UH |
368 | } |
369 | ||
4f840ce9 | 370 | static GSList *dev_list(const struct sr_dev_driver *di) |
811deee4 | 371 | { |
0e94d524 | 372 | return ((struct drv_context *)(di->priv))->instances; |
811deee4 BV |
373 | } |
374 | ||
6078d2c9 | 375 | static int dev_open(struct sr_dev_inst *sdi) |
6239c175 | 376 | { |
e73ffd42 | 377 | sdi->status = SR_ST_ACTIVE; |
697785d1 | 378 | |
e46b8fb1 | 379 | return SR_OK; |
6239c175 UH |
380 | } |
381 | ||
6078d2c9 | 382 | static int dev_close(struct sr_dev_inst *sdi) |
6239c175 | 383 | { |
decfe89d | 384 | sdi->status = SR_ST_INACTIVE; |
697785d1 UH |
385 | |
386 | return SR_OK; | |
6239c175 UH |
387 | } |
388 | ||
ed0b7fed BV |
389 | static void clear_helper(void *priv) |
390 | { | |
391 | struct dev_context *devc; | |
49224c28 BV |
392 | GHashTableIter iter; |
393 | void *value; | |
ed0b7fed BV |
394 | |
395 | devc = priv; | |
49224c28 BV |
396 | |
397 | /* Analog generators. */ | |
398 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
399 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
400 | g_free(value); | |
401 | g_hash_table_unref(devc->ch_ag); | |
ed0b7fed BV |
402 | g_free(devc); |
403 | } | |
404 | ||
4f840ce9 | 405 | static int cleanup(const struct sr_dev_driver *di) |
6239c175 | 406 | { |
ed0b7fed | 407 | return std_dev_clear(di, clear_helper); |
6239c175 UH |
408 | } |
409 | ||
584560f1 | 410 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 411 | const struct sr_channel_group *cg) |
6239c175 | 412 | { |
c07f60e7 | 413 | struct dev_context *devc; |
ba7dd8bb | 414 | struct sr_channel *ch; |
2388ae86 BV |
415 | struct analog_gen *ag; |
416 | int pattern; | |
6f57fd96 | 417 | |
2388ae86 BV |
418 | if (!sdi) |
419 | return SR_ERR_ARG; | |
8f996b89 | 420 | |
c07f60e7 | 421 | devc = sdi->priv; |
584560f1 | 422 | switch (key) { |
123e1313 | 423 | case SR_CONF_SAMPLERATE: |
a7684294 | 424 | *data = g_variant_new_uint64(devc->cur_samplerate); |
6239c175 | 425 | break; |
2474d87e | 426 | case SR_CONF_LIMIT_SAMPLES: |
a7684294 | 427 | *data = g_variant_new_uint64(devc->limit_samples); |
2474d87e BV |
428 | break; |
429 | case SR_CONF_LIMIT_MSEC: | |
a7684294 | 430 | *data = g_variant_new_uint64(devc->limit_msec); |
2474d87e | 431 | break; |
7a8a1aba BG |
432 | case SR_CONF_AVERAGING: |
433 | *data = g_variant_new_boolean(devc->avg); | |
434 | break; | |
435 | case SR_CONF_AVG_SAMPLES: | |
436 | *data = g_variant_new_uint64(devc->avg_samples); | |
437 | break; | |
2474d87e | 438 | case SR_CONF_PATTERN_MODE: |
53b4680f | 439 | if (!cg) |
660e398f | 440 | return SR_ERR_CHANNEL_GROUP; |
49224c28 | 441 | /* Any channel in the group will do. */ |
ba7dd8bb | 442 | ch = cg->channels->data; |
3f239f08 | 443 | if (ch->type == SR_CHANNEL_LOGIC) { |
2388ae86 BV |
444 | pattern = devc->logic_pattern; |
445 | *data = g_variant_new_string(logic_pattern_str[pattern]); | |
3f239f08 | 446 | } else if (ch->type == SR_CHANNEL_ANALOG) { |
49224c28 | 447 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
2388ae86 BV |
448 | pattern = ag->pattern; |
449 | *data = g_variant_new_string(analog_pattern_str[pattern]); | |
450 | } else | |
451 | return SR_ERR_BUG; | |
c07f60e7 | 452 | break; |
dddabe37 BV |
453 | case SR_CONF_AMPLITUDE: |
454 | if (!cg) | |
455 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 | 456 | /* Any channel in the group will do. */ |
dddabe37 BV |
457 | ch = cg->channels->data; |
458 | if (ch->type != SR_CHANNEL_ANALOG) | |
459 | return SR_ERR_ARG; | |
49224c28 | 460 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
dddabe37 BV |
461 | *data = g_variant_new_double(ag->amplitude); |
462 | break; | |
7dfcf010 | 463 | default: |
bd6fbf62 | 464 | return SR_ERR_NA; |
6239c175 UH |
465 | } |
466 | ||
dfb0fa1a | 467 | return SR_OK; |
6239c175 UH |
468 | } |
469 | ||
584560f1 | 470 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 471 | const struct sr_channel_group *cg) |
6239c175 | 472 | { |
8b2d41ed | 473 | struct dev_context *devc; |
4374219b | 474 | struct analog_gen *ag; |
ba7dd8bb | 475 | struct sr_channel *ch; |
49224c28 BV |
476 | GSList *l; |
477 | int logic_pattern, analog_pattern, ret; | |
61c39f54 | 478 | unsigned int i; |
1b79df2f | 479 | const char *stropt; |
6239c175 | 480 | |
8b2d41ed | 481 | devc = sdi->priv; |
6239c175 | 482 | |
e73ffd42 BV |
483 | if (sdi->status != SR_ST_ACTIVE) |
484 | return SR_ERR_DEV_CLOSED; | |
485 | ||
2388ae86 | 486 | ret = SR_OK; |
584560f1 | 487 | switch (key) { |
2388ae86 | 488 | case SR_CONF_SAMPLERATE: |
a7684294 | 489 | devc->cur_samplerate = g_variant_get_uint64(data); |
61c39f54 | 490 | sr_dbg("Setting samplerate to %" PRIu64, devc->cur_samplerate); |
2388ae86 BV |
491 | break; |
492 | case SR_CONF_LIMIT_SAMPLES: | |
a7684294 JH |
493 | devc->limit_msec = 0; |
494 | devc->limit_samples = g_variant_get_uint64(data); | |
8b2d41ed | 495 | sr_dbg("Setting sample limit to %" PRIu64, devc->limit_samples); |
2388ae86 BV |
496 | break; |
497 | case SR_CONF_LIMIT_MSEC: | |
a7684294 JH |
498 | devc->limit_msec = g_variant_get_uint64(data); |
499 | devc->limit_samples = 0; | |
8b2d41ed | 500 | sr_dbg("Setting time limit to %" PRIu64"ms", devc->limit_msec); |
2388ae86 | 501 | break; |
7a8a1aba BG |
502 | case SR_CONF_AVERAGING: |
503 | devc->avg = g_variant_get_boolean(data); | |
504 | sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling"); | |
505 | break; | |
506 | case SR_CONF_AVG_SAMPLES: | |
507 | devc->avg_samples = g_variant_get_uint64(data); | |
508 | sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples); | |
509 | break; | |
2388ae86 | 510 | case SR_CONF_PATTERN_MODE: |
53b4680f | 511 | if (!cg) |
660e398f | 512 | return SR_ERR_CHANNEL_GROUP; |
d00088ca | 513 | stropt = g_variant_get_string(data, NULL); |
49224c28 BV |
514 | logic_pattern = analog_pattern = -1; |
515 | for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) { | |
516 | if (!strcmp(stropt, logic_pattern_str[i])) { | |
517 | logic_pattern = i; | |
518 | break; | |
8b2d41ed | 519 | } |
49224c28 BV |
520 | } |
521 | for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) { | |
522 | if (!strcmp(stropt, analog_pattern_str[i])) { | |
523 | analog_pattern = i; | |
524 | break; | |
8b2d41ed | 525 | } |
49224c28 BV |
526 | } |
527 | if (logic_pattern == -1 && analog_pattern == -1) | |
528 | return SR_ERR_ARG; | |
529 | for (l = cg->channels; l; l = l->next) { | |
530 | ch = l->data; | |
531 | if (ch->type == SR_CHANNEL_LOGIC) { | |
532 | if (logic_pattern == -1) | |
533 | return SR_ERR_ARG; | |
534 | sr_dbg("Setting logic pattern to %s", | |
535 | logic_pattern_str[logic_pattern]); | |
536 | devc->logic_pattern = logic_pattern; | |
537 | /* Might as well do this now, these are static. */ | |
538 | if (logic_pattern == PATTERN_ALL_LOW) | |
539 | memset(devc->logic_data, 0x00, LOGIC_BUFSIZE); | |
540 | else if (logic_pattern == PATTERN_ALL_HIGH) | |
541 | memset(devc->logic_data, 0xff, LOGIC_BUFSIZE); | |
542 | } else if (ch->type == SR_CHANNEL_ANALOG) { | |
543 | if (analog_pattern == -1) | |
544 | return SR_ERR_ARG; | |
545 | sr_dbg("Setting analog pattern for channel %s to %s", | |
546 | ch->name, analog_pattern_str[analog_pattern]); | |
547 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
548 | ag->pattern = analog_pattern; | |
549 | } else | |
550 | return SR_ERR_BUG; | |
551 | } | |
2388ae86 | 552 | break; |
dddabe37 BV |
553 | case SR_CONF_AMPLITUDE: |
554 | if (!cg) | |
555 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 BV |
556 | for (l = cg->channels; l; l = l->next) { |
557 | ch = l->data; | |
558 | if (ch->type != SR_CHANNEL_ANALOG) | |
559 | return SR_ERR_ARG; | |
560 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
561 | ag->amplitude = g_variant_get_double(data); | |
562 | } | |
dddabe37 | 563 | break; |
2388ae86 | 564 | default: |
bd6fbf62 | 565 | ret = SR_ERR_NA; |
6239c175 UH |
566 | } |
567 | ||
568 | return ret; | |
569 | } | |
570 | ||
584560f1 | 571 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 572 | const struct sr_channel_group *cg) |
a1c743fc | 573 | { |
ba7dd8bb | 574 | struct sr_channel *ch; |
d00088ca BV |
575 | GVariant *gvar; |
576 | GVariantBuilder gvb; | |
a1c743fc BV |
577 | |
578 | (void)sdi; | |
579 | ||
7a1da331 | 580 | if (key == SR_CONF_SCAN_OPTIONS) { |
584560f1 BV |
581 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
582 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
7a1da331 BV |
583 | return SR_OK; |
584 | } | |
585 | ||
390795c0 BV |
586 | if (key == SR_CONF_DEVICE_OPTIONS && !sdi) { |
587 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
1e4a7cac | 588 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); |
390795c0 BV |
589 | return SR_OK; |
590 | } | |
591 | ||
7a1da331 BV |
592 | if (!sdi) |
593 | return SR_ERR_ARG; | |
594 | ||
53b4680f | 595 | if (!cg) { |
7a1da331 BV |
596 | switch (key) { |
597 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 598 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
1e4a7cac | 599 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
7a1da331 BV |
600 | break; |
601 | case SR_CONF_SAMPLERATE: | |
602 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
603 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
604 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
605 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
606 | *data = g_variant_builder_end(&gvb); | |
607 | break; | |
608 | default: | |
609 | return SR_ERR_NA; | |
610 | } | |
611 | } else { | |
49224c28 | 612 | /* Any channel in the group will do. */ |
ba7dd8bb | 613 | ch = cg->channels->data; |
7a1da331 BV |
614 | switch (key) { |
615 | case SR_CONF_DEVICE_OPTIONS: | |
49224c28 BV |
616 | if (ch->type == SR_CHANNEL_LOGIC) |
617 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
618 | devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic), | |
584560f1 | 619 | sizeof(uint32_t)); |
49224c28 BV |
620 | else if (ch->type == SR_CHANNEL_ANALOG) |
621 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
622 | devopts_cg_analog, ARRAY_SIZE(devopts_cg_analog), | |
584560f1 | 623 | sizeof(uint32_t)); |
49224c28 BV |
624 | else |
625 | return SR_ERR_BUG; | |
7a1da331 BV |
626 | break; |
627 | case SR_CONF_PATTERN_MODE: | |
3f239f08 | 628 | if (ch->type == SR_CHANNEL_LOGIC) |
7a1da331 BV |
629 | *data = g_variant_new_strv(logic_pattern_str, |
630 | ARRAY_SIZE(logic_pattern_str)); | |
3f239f08 | 631 | else if (ch->type == SR_CHANNEL_ANALOG) |
7a1da331 BV |
632 | *data = g_variant_new_strv(analog_pattern_str, |
633 | ARRAY_SIZE(analog_pattern_str)); | |
2388ae86 BV |
634 | else |
635 | return SR_ERR_BUG; | |
7a1da331 BV |
636 | break; |
637 | default: | |
638 | return SR_ERR_NA; | |
639 | } | |
a1c743fc BV |
640 | } |
641 | ||
642 | return SR_OK; | |
643 | } | |
644 | ||
c07f60e7 | 645 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) |
85b5af06 | 646 | { |
61c39f54 | 647 | struct dev_context *devc; |
c07f60e7 BV |
648 | uint64_t i, j; |
649 | uint8_t pat; | |
85b5af06 | 650 | |
61c39f54 | 651 | devc = sdi->priv; |
85b5af06 | 652 | |
c07f60e7 | 653 | switch (devc->logic_pattern) { |
61c39f54 | 654 | case PATTERN_SIGROK: |
c07f60e7 BV |
655 | memset(devc->logic_data, 0x00, size); |
656 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
657 | for (j = 0; j < devc->logic_unitsize; j++) { | |
658 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
659 | devc->logic_data[i + j] = ~pat; | |
660 | } | |
661 | devc->step++; | |
917e0e71 BV |
662 | } |
663 | break; | |
61c39f54 | 664 | case PATTERN_RANDOM: |
5096c6a6 | 665 | for (i = 0; i < size; i++) |
61c39f54 | 666 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); |
85b5af06 | 667 | break; |
61c39f54 | 668 | case PATTERN_INC: |
c07f60e7 BV |
669 | for (i = 0; i < size; i++) { |
670 | for (j = 0; j < devc->logic_unitsize; j++) { | |
671 | devc->logic_data[i + j] = devc->step; | |
672 | } | |
673 | devc->step++; | |
674 | } | |
c03ed397 | 675 | break; |
61c39f54 BV |
676 | case PATTERN_ALL_LOW: |
677 | case PATTERN_ALL_HIGH: | |
678 | /* These were set when the pattern mode was selected. */ | |
c03ed397 UH |
679 | break; |
680 | default: | |
c07f60e7 | 681 | sr_err("Unknown pattern: %d.", devc->logic_pattern); |
c03ed397 | 682 | break; |
85b5af06 UH |
683 | } |
684 | } | |
685 | ||
7a8a1aba BG |
686 | static void send_analog_packet(struct analog_gen *ag, |
687 | struct sr_dev_inst *sdi, | |
688 | uint64_t *analog_sent, | |
689 | uint64_t analog_todo) | |
690 | { | |
691 | struct sr_datafeed_packet packet; | |
692 | struct dev_context *devc; | |
693 | uint64_t sending_now, to_avg; | |
694 | int ag_pattern_pos; | |
695 | unsigned int i; | |
696 | ||
697 | devc = sdi->priv; | |
698 | packet.type = SR_DF_ANALOG; | |
699 | packet.payload = &ag->packet; | |
700 | ||
701 | if (!devc->avg) { | |
702 | ag_pattern_pos = devc->analog_counter % ag->num_samples; | |
703 | sending_now = MIN(analog_todo, ag->num_samples-ag_pattern_pos); | |
704 | ag->packet.data = ag->pattern_data + ag_pattern_pos; | |
705 | ag->packet.num_samples = sending_now; | |
706 | sr_session_send(sdi, &packet); | |
707 | ||
708 | /* Whichever channel group gets there first. */ | |
709 | *analog_sent = MAX(*analog_sent, sending_now); | |
710 | } else { | |
711 | ag_pattern_pos = devc->analog_counter % ag->num_samples; | |
712 | to_avg = MIN(analog_todo, ag->num_samples-ag_pattern_pos); | |
713 | ||
714 | for (i = 0; i < to_avg; i++) { | |
715 | ag->avg_val = (ag->avg_val + | |
716 | *(ag->pattern_data + | |
717 | ag_pattern_pos + i)) / 2; | |
718 | ag->num_avgs++; | |
719 | /* Time to send averaged data? */ | |
720 | if (devc->avg_samples > 0 && | |
721 | ag->num_avgs >= devc->avg_samples) | |
722 | goto do_send; | |
723 | } | |
724 | ||
725 | if (devc->avg_samples == 0) { | |
726 | /* We're averaging all the samples, so wait with | |
727 | * sending until the very end. | |
728 | */ | |
729 | *analog_sent = ag->num_avgs; | |
730 | return; | |
731 | } | |
732 | ||
733 | do_send: | |
734 | ag->packet.data = &ag->avg_val; | |
735 | ag->packet.num_samples = 1; | |
736 | ||
737 | sr_session_send(sdi, &packet); | |
738 | *analog_sent = ag->num_avgs; | |
739 | ||
740 | ag->num_avgs = 0; | |
741 | ag->avg_val = 0.0f; | |
742 | } | |
743 | } | |
744 | ||
85b5af06 | 745 | /* Callback handling data */ |
61c39f54 | 746 | static int prepare_data(int fd, int revents, void *cb_data) |
85b5af06 | 747 | { |
61c39f54 BV |
748 | struct sr_dev_inst *sdi; |
749 | struct dev_context *devc; | |
b9c735a2 | 750 | struct sr_datafeed_packet packet; |
9c939c51 | 751 | struct sr_datafeed_logic logic; |
8b2d41ed | 752 | struct analog_gen *ag; |
49224c28 BV |
753 | GHashTableIter iter; |
754 | void *value; | |
b62bb97a | 755 | uint64_t logic_todo, analog_todo, expected_samplenum, analog_sent, sending_now; |
3b203673 | 756 | int64_t time, elapsed; |
1924f59f | 757 | |
cb93f8a9 UH |
758 | (void)fd; |
759 | (void)revents; | |
1924f59f | 760 | |
61c39f54 BV |
761 | sdi = cb_data; |
762 | devc = sdi->priv; | |
b62bb97a | 763 | logic_todo = analog_todo = 0; |
61c39f54 | 764 | |
b62bb97a | 765 | /* How many samples should we have sent by now? */ |
3b203673 AG |
766 | time = g_get_monotonic_time(); |
767 | elapsed = time - devc->starttime; | |
a7684294 | 768 | expected_samplenum = elapsed * devc->cur_samplerate / 1000000; |
7f4975b4 | 769 | |
b62bb97a BV |
770 | /* But never more than the limit, if there is one. */ |
771 | if (!devc->continuous) | |
772 | expected_samplenum = MIN(expected_samplenum, devc->limit_samples); | |
773 | ||
3b203673 | 774 | /* Of those, how many do we still have to send? */ |
b62bb97a BV |
775 | if (devc->num_logic_channels) |
776 | logic_todo = expected_samplenum - devc->logic_counter; | |
777 | if (devc->num_analog_channels) | |
778 | analog_todo = expected_samplenum - devc->analog_counter; | |
85b5af06 | 779 | |
7f4975b4 | 780 | while (logic_todo || analog_todo) { |
c07f60e7 | 781 | /* Logic */ |
b62bb97a BV |
782 | if (logic_todo > 0) { |
783 | sending_now = MIN(logic_todo, LOGIC_BUFSIZE / devc->logic_unitsize); | |
8b2d41ed BV |
784 | logic_generator(sdi, sending_now * devc->logic_unitsize); |
785 | packet.type = SR_DF_LOGIC; | |
786 | packet.payload = &logic; | |
787 | logic.length = sending_now * devc->logic_unitsize; | |
788 | logic.unitsize = devc->logic_unitsize; | |
789 | logic.data = devc->logic_data; | |
790 | sr_session_send(sdi, &packet); | |
7f4975b4 BV |
791 | logic_todo -= sending_now; |
792 | devc->logic_counter += sending_now; | |
8b2d41ed BV |
793 | } |
794 | ||
ba7dd8bb | 795 | /* Analog, one channel at a time */ |
b62bb97a BV |
796 | if (analog_todo > 0) { |
797 | analog_sent = 0; | |
49224c28 BV |
798 | |
799 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
800 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
7a8a1aba BG |
801 | send_analog_packet(value, sdi, |
802 | &analog_sent, analog_todo); | |
8b2d41ed | 803 | } |
b62bb97a BV |
804 | analog_todo -= analog_sent; |
805 | devc->analog_counter += analog_sent; | |
8b2d41ed | 806 | } |
3b203673 AG |
807 | } |
808 | ||
b62bb97a BV |
809 | if (!devc->continuous |
810 | && (!devc->num_logic_channels || devc->logic_counter >= devc->limit_samples) | |
811 | && (!devc->num_analog_channels || devc->analog_counter >= devc->limit_samples)) { | |
7a8a1aba BG |
812 | /* If we're averaging everything - now is the time to send data */ |
813 | if (devc->avg_samples == 0) { | |
814 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
815 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
816 | ag = value; | |
817 | packet.type = SR_DF_ANALOG; | |
818 | packet.payload = &ag->packet; | |
819 | ag->packet.data = &ag->avg_val; | |
820 | ag->packet.num_samples = 1; | |
821 | sr_session_send(sdi, &packet); | |
822 | } | |
823 | } | |
824 | ||
7f4975b4 | 825 | sr_dbg("Requested number of samples reached."); |
61c39f54 | 826 | dev_acquisition_stop(sdi, cb_data); |
c216d623 | 827 | return TRUE; |
85b5af06 | 828 | } |
1924f59f | 829 | |
85b5af06 UH |
830 | return TRUE; |
831 | } | |
832 | ||
6078d2c9 | 833 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 834 | { |
61c39f54 | 835 | struct dev_context *devc; |
49224c28 BV |
836 | GHashTableIter iter; |
837 | void *value; | |
85b5af06 | 838 | |
102f1239 BV |
839 | (void)cb_data; |
840 | ||
e73ffd42 BV |
841 | if (sdi->status != SR_ST_ACTIVE) |
842 | return SR_ERR_DEV_CLOSED; | |
843 | ||
61c39f54 | 844 | devc = sdi->priv; |
b62bb97a | 845 | devc->continuous = !devc->limit_samples; |
7f4975b4 | 846 | devc->logic_counter = devc->analog_counter = 0; |
85b5af06 | 847 | |
3b203673 AG |
848 | /* |
849 | * Setting two channels connected by a pipe is a remnant from when the | |
850 | * demo driver generated data in a thread, and collected and sent the | |
851 | * data in the main program loop. | |
852 | * They are kept here because it provides a convenient way of setting | |
853 | * up a timeout-based polling mechanism. | |
854 | */ | |
b4750a3a | 855 | if (pipe(devc->pipe_fds)) { |
92bcedf6 | 856 | sr_err("%s: pipe() failed", __func__); |
e46b8fb1 | 857 | return SR_ERR; |
c03ed397 | 858 | } |
85b5af06 | 859 | |
49224c28 BV |
860 | g_hash_table_iter_init(&iter, devc->ch_ag); |
861 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
862 | generate_analog_pattern(value, devc->cur_samplerate); | |
4374219b | 863 | |
e0532047 | 864 | devc->channel = g_io_channel_unix_new(devc->pipe_fds[0]); |
e0532047 | 865 | g_io_channel_set_flags(devc->channel, G_IO_FLAG_NONBLOCK, NULL); |
e6e8f8e0 | 866 | |
d35aaf02 | 867 | /* Set channel encoding to binary (default is UTF-8). */ |
e0532047 | 868 | g_io_channel_set_encoding(devc->channel, NULL, NULL); |
d35aaf02 | 869 | |
b62bb97a | 870 | /* Make channels unbuffered. */ |
e0532047 | 871 | g_io_channel_set_buffered(devc->channel, FALSE); |
d35aaf02 | 872 | |
b62bb97a BV |
873 | sr_session_source_add_channel(sdi->session, devc->channel, |
874 | G_IO_IN | G_IO_ERR, 40, prepare_data, (void *)sdi); | |
85b5af06 | 875 | |
4afdfd46 | 876 | /* Send header packet to the session bus. */ |
102f1239 | 877 | std_session_send_df_header(sdi, LOG_PREFIX); |
f366e86c | 878 | |
3b203673 AG |
879 | /* We use this timestamp to decide how many more samples to send. */ |
880 | devc->starttime = g_get_monotonic_time(); | |
881 | ||
e46b8fb1 | 882 | return SR_OK; |
6239c175 UH |
883 | } |
884 | ||
6078d2c9 | 885 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 886 | { |
8b2d41ed | 887 | struct dev_context *devc; |
c216d623 | 888 | struct sr_datafeed_packet packet; |
7fd3e859 | 889 | |
33ef7573 | 890 | (void)cb_data; |
7fd3e859 | 891 | |
8b2d41ed | 892 | devc = sdi->priv; |
a84f6ad3 | 893 | sr_dbg("Stopping acquisition."); |
49145a63 | 894 | |
102f1239 | 895 | sr_session_source_remove_channel(sdi->session, devc->channel); |
e0532047 | 896 | g_io_channel_shutdown(devc->channel, FALSE, NULL); |
2150a69b JH |
897 | g_io_channel_unref(devc->channel); |
898 | devc->channel = NULL; | |
c216d623 AG |
899 | |
900 | /* Send last packet. */ | |
901 | packet.type = SR_DF_END; | |
c07f60e7 | 902 | sr_session_send(sdi, &packet); |
7fd3e859 | 903 | |
3010f21c | 904 | return SR_OK; |
6239c175 UH |
905 | } |
906 | ||
c09f0b57 | 907 | SR_PRIV struct sr_dev_driver demo_driver_info = { |
e519ba86 UH |
908 | .name = "demo", |
909 | .longname = "Demo driver and pattern generator", | |
910 | .api_version = 1, | |
6078d2c9 UH |
911 | .init = init, |
912 | .cleanup = cleanup, | |
913 | .scan = scan, | |
914 | .dev_list = dev_list, | |
a6630742 | 915 | .dev_clear = NULL, |
035a1078 BV |
916 | .config_get = config_get, |
917 | .config_set = config_set, | |
a1c743fc | 918 | .config_list = config_list, |
6078d2c9 UH |
919 | .dev_open = dev_open, |
920 | .dev_close = dev_close, | |
921 | .dev_acquisition_start = dev_acquisition_start, | |
922 | .dev_acquisition_stop = dev_acquisition_stop, | |
b4750a3a | 923 | .priv = NULL, |
6239c175 | 924 | }; |