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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 | 215 | case PATTERN_SINE: |
9d156555 | 216 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
4374219b DJ |
217 | |
218 | /* Make sure the number of samples we put out is an integer | |
219 | * multiple of our period size */ | |
220 | /* FIXME we actually need only one period. A ringbuffer would be | |
f3f19d11 | 221 | * useful here. */ |
4374219b DJ |
222 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) |
223 | num_samples--; | |
224 | ||
225 | for (i = 0; i < num_samples; i++) { | |
226 | t = (double) i / (double) sample_rate; | |
dddabe37 | 227 | ag->pattern_data[i] = ag->amplitude * |
4374219b DJ |
228 | sin(2 * M_PI * frequency * t); |
229 | } | |
230 | ||
091c9621 DJ |
231 | ag->num_samples = num_samples; |
232 | break; | |
091c9621 | 233 | case PATTERN_TRIANGLE: |
9d156555 | 234 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
091c9621 DJ |
235 | |
236 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
237 | num_samples--; | |
238 | ||
239 | for (i = 0; i < num_samples; i++) { | |
240 | t = (double) i / (double) sample_rate; | |
dddabe37 | 241 | ag->pattern_data[i] = (2 * ag->amplitude / M_PI) * |
091c9621 DJ |
242 | asin(sin(2 * M_PI * frequency * t)); |
243 | } | |
244 | ||
9f54e0e8 DJ |
245 | ag->num_samples = num_samples; |
246 | break; | |
9f54e0e8 | 247 | case PATTERN_SAWTOOTH: |
9d156555 | 248 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
9f54e0e8 DJ |
249 | |
250 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
251 | num_samples--; | |
252 | ||
253 | for (i = 0; i < num_samples; i++) { | |
254 | t = (double) i / (double) sample_rate; | |
dddabe37 | 255 | ag->pattern_data[i] = 2 * ag->amplitude * |
9f54e0e8 DJ |
256 | ((t * frequency) - floor(0.5f + t * frequency)); |
257 | } | |
258 | ||
4374219b DJ |
259 | ag->num_samples = num_samples; |
260 | break; | |
8b2d41ed BV |
261 | } |
262 | } | |
263 | ||
4f840ce9 | 264 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
6239c175 | 265 | { |
b4750a3a | 266 | struct drv_context *drvc; |
33ef7573 | 267 | struct dev_context *devc; |
c07f60e7 | 268 | struct sr_dev_inst *sdi; |
ba7dd8bb | 269 | struct sr_channel *ch; |
49224c28 | 270 | struct sr_channel_group *cg, *acg; |
c07f60e7 | 271 | struct sr_config *src; |
8b2d41ed | 272 | struct analog_gen *ag; |
c07f60e7 | 273 | GSList *devices, *l; |
ba7dd8bb UH |
274 | int num_logic_channels, num_analog_channels, pattern, i; |
275 | char channel_name[16]; | |
067d0716 | 276 | |
a873c594 | 277 | drvc = di->priv; |
4b97c74e | 278 | |
3f239f08 UH |
279 | num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS; |
280 | num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS; | |
c07f60e7 BV |
281 | for (l = options; l; l = l->next) { |
282 | src = l->data; | |
283 | switch (src->key) { | |
3f239f08 | 284 | case SR_CONF_NUM_LOGIC_CHANNELS: |
ba7dd8bb | 285 | num_logic_channels = g_variant_get_int32(src->data); |
c07f60e7 | 286 | break; |
3f239f08 | 287 | case SR_CONF_NUM_ANALOG_CHANNELS: |
ba7dd8bb | 288 | num_analog_channels = g_variant_get_int32(src->data); |
c07f60e7 BV |
289 | break; |
290 | } | |
291 | } | |
85b5af06 | 292 | |
c07f60e7 | 293 | devices = NULL; |
0af636be | 294 | |
aac29cc1 | 295 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
0af636be | 296 | sdi->status = SR_ST_ACTIVE; |
4b664cd6 | 297 | sdi->model = g_strdup("Demo device"); |
a873c594 | 298 | sdi->driver = di; |
e15f48c2 | 299 | |
49224c28 | 300 | devc = g_malloc(sizeof(struct dev_context)); |
8b2d41ed BV |
301 | devc->cur_samplerate = SR_KHZ(200); |
302 | devc->limit_samples = 0; | |
303 | devc->limit_msec = 0; | |
304 | devc->step = 0; | |
b62bb97a | 305 | devc->continuous = FALSE; |
ba7dd8bb UH |
306 | devc->num_logic_channels = num_logic_channels; |
307 | devc->logic_unitsize = (devc->num_logic_channels + 7) / 8; | |
8b2d41ed | 308 | devc->logic_pattern = PATTERN_SIGROK; |
ba7dd8bb | 309 | devc->num_analog_channels = num_analog_channels; |
7a8a1aba BG |
310 | devc->avg = FALSE; |
311 | devc->avg_samples = 0; | |
8b2d41ed | 312 | |
ba7dd8bb | 313 | /* Logic channels, all in one channel group. */ |
49224c28 | 314 | cg = g_malloc0(sizeof(struct sr_channel_group)); |
40fd0264 | 315 | cg->name = g_strdup("Logic"); |
ba7dd8bb UH |
316 | for (i = 0; i < num_logic_channels; i++) { |
317 | sprintf(channel_name, "D%d", i); | |
5e23fcab | 318 | ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name); |
ba7dd8bb | 319 | cg->channels = g_slist_append(cg->channels, ch); |
87ca93c5 | 320 | } |
40fd0264 | 321 | sdi->channel_groups = g_slist_append(NULL, cg); |
87ca93c5 | 322 | |
ba7dd8bb | 323 | /* Analog channels, channel groups and pattern generators. */ |
2b36d6c6 | 324 | pattern = 0; |
49224c28 BV |
325 | /* An "Analog" channel group with all analog channels in it. */ |
326 | acg = g_malloc0(sizeof(struct sr_channel_group)); | |
327 | acg->name = g_strdup("Analog"); | |
328 | sdi->channel_groups = g_slist_append(sdi->channel_groups, acg); | |
329 | ||
330 | devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal); | |
ba7dd8bb | 331 | for (i = 0; i < num_analog_channels; i++) { |
49224c28 | 332 | snprintf(channel_name, 16, "A%d", i); |
5e23fcab | 333 | ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG, |
49224c28 | 334 | TRUE, channel_name); |
49224c28 | 335 | acg->channels = g_slist_append(acg->channels, ch); |
c07f60e7 | 336 | |
49224c28 BV |
337 | /* Every analog channel gets its own channel group as well. */ |
338 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
ba7dd8bb UH |
339 | cg->name = g_strdup(channel_name); |
340 | cg->channels = g_slist_append(NULL, ch); | |
49224c28 | 341 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); |
85b5af06 | 342 | |
49224c28 BV |
343 | /* Every channel gets a generator struct. */ |
344 | ag = g_malloc(sizeof(struct analog_gen)); | |
dddabe37 | 345 | ag->amplitude = DEFAULT_ANALOG_AMPLITUDE; |
ba7dd8bb | 346 | ag->packet.channels = cg->channels; |
8b2d41ed BV |
347 | ag->packet.mq = 0; |
348 | ag->packet.mqflags = 0; | |
349 | ag->packet.unit = SR_UNIT_VOLT; | |
350 | ag->packet.data = ag->pattern_data; | |
2b36d6c6 | 351 | ag->pattern = pattern; |
7a8a1aba BG |
352 | ag->avg_val = 0.0f; |
353 | ag->num_avgs = 0; | |
49224c28 | 354 | g_hash_table_insert(devc->ch_ag, ch, ag); |
2b36d6c6 BV |
355 | |
356 | if (++pattern == ARRAY_SIZE(analog_pattern_str)) | |
357 | pattern = 0; | |
33ef7573 | 358 | } |
33ef7573 JH |
359 | |
360 | sdi->priv = devc; | |
8b2d41ed BV |
361 | devices = g_slist_append(devices, sdi); |
362 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
33ef7573 | 363 | |
067d0716 | 364 | return devices; |
6239c175 UH |
365 | } |
366 | ||
4f840ce9 | 367 | static GSList *dev_list(const struct sr_dev_driver *di) |
811deee4 | 368 | { |
0e94d524 | 369 | return ((struct drv_context *)(di->priv))->instances; |
811deee4 BV |
370 | } |
371 | ||
6078d2c9 | 372 | static int dev_open(struct sr_dev_inst *sdi) |
6239c175 | 373 | { |
e73ffd42 | 374 | sdi->status = SR_ST_ACTIVE; |
697785d1 | 375 | |
e46b8fb1 | 376 | return SR_OK; |
6239c175 UH |
377 | } |
378 | ||
6078d2c9 | 379 | static int dev_close(struct sr_dev_inst *sdi) |
6239c175 | 380 | { |
decfe89d | 381 | sdi->status = SR_ST_INACTIVE; |
697785d1 UH |
382 | |
383 | return SR_OK; | |
6239c175 UH |
384 | } |
385 | ||
ed0b7fed BV |
386 | static void clear_helper(void *priv) |
387 | { | |
388 | struct dev_context *devc; | |
49224c28 BV |
389 | GHashTableIter iter; |
390 | void *value; | |
ed0b7fed BV |
391 | |
392 | devc = priv; | |
49224c28 BV |
393 | |
394 | /* Analog generators. */ | |
395 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
396 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
397 | g_free(value); | |
398 | g_hash_table_unref(devc->ch_ag); | |
ed0b7fed BV |
399 | g_free(devc); |
400 | } | |
401 | ||
4f840ce9 | 402 | static int cleanup(const struct sr_dev_driver *di) |
6239c175 | 403 | { |
ed0b7fed | 404 | return std_dev_clear(di, clear_helper); |
6239c175 UH |
405 | } |
406 | ||
584560f1 | 407 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 408 | const struct sr_channel_group *cg) |
6239c175 | 409 | { |
c07f60e7 | 410 | struct dev_context *devc; |
ba7dd8bb | 411 | struct sr_channel *ch; |
2388ae86 BV |
412 | struct analog_gen *ag; |
413 | int pattern; | |
6f57fd96 | 414 | |
2388ae86 BV |
415 | if (!sdi) |
416 | return SR_ERR_ARG; | |
8f996b89 | 417 | |
c07f60e7 | 418 | devc = sdi->priv; |
584560f1 | 419 | switch (key) { |
123e1313 | 420 | case SR_CONF_SAMPLERATE: |
a7684294 | 421 | *data = g_variant_new_uint64(devc->cur_samplerate); |
6239c175 | 422 | break; |
2474d87e | 423 | case SR_CONF_LIMIT_SAMPLES: |
a7684294 | 424 | *data = g_variant_new_uint64(devc->limit_samples); |
2474d87e BV |
425 | break; |
426 | case SR_CONF_LIMIT_MSEC: | |
a7684294 | 427 | *data = g_variant_new_uint64(devc->limit_msec); |
2474d87e | 428 | break; |
7a8a1aba BG |
429 | case SR_CONF_AVERAGING: |
430 | *data = g_variant_new_boolean(devc->avg); | |
431 | break; | |
432 | case SR_CONF_AVG_SAMPLES: | |
433 | *data = g_variant_new_uint64(devc->avg_samples); | |
434 | break; | |
2474d87e | 435 | case SR_CONF_PATTERN_MODE: |
53b4680f | 436 | if (!cg) |
660e398f | 437 | return SR_ERR_CHANNEL_GROUP; |
49224c28 | 438 | /* Any channel in the group will do. */ |
ba7dd8bb | 439 | ch = cg->channels->data; |
3f239f08 | 440 | if (ch->type == SR_CHANNEL_LOGIC) { |
2388ae86 BV |
441 | pattern = devc->logic_pattern; |
442 | *data = g_variant_new_string(logic_pattern_str[pattern]); | |
3f239f08 | 443 | } else if (ch->type == SR_CHANNEL_ANALOG) { |
49224c28 | 444 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
2388ae86 BV |
445 | pattern = ag->pattern; |
446 | *data = g_variant_new_string(analog_pattern_str[pattern]); | |
447 | } else | |
448 | return SR_ERR_BUG; | |
c07f60e7 | 449 | break; |
dddabe37 BV |
450 | case SR_CONF_AMPLITUDE: |
451 | if (!cg) | |
452 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 | 453 | /* Any channel in the group will do. */ |
dddabe37 BV |
454 | ch = cg->channels->data; |
455 | if (ch->type != SR_CHANNEL_ANALOG) | |
456 | return SR_ERR_ARG; | |
49224c28 | 457 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
dddabe37 BV |
458 | *data = g_variant_new_double(ag->amplitude); |
459 | break; | |
7dfcf010 | 460 | default: |
bd6fbf62 | 461 | return SR_ERR_NA; |
6239c175 UH |
462 | } |
463 | ||
dfb0fa1a | 464 | return SR_OK; |
6239c175 UH |
465 | } |
466 | ||
584560f1 | 467 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 468 | const struct sr_channel_group *cg) |
6239c175 | 469 | { |
8b2d41ed | 470 | struct dev_context *devc; |
4374219b | 471 | struct analog_gen *ag; |
ba7dd8bb | 472 | struct sr_channel *ch; |
49224c28 BV |
473 | GSList *l; |
474 | int logic_pattern, analog_pattern, ret; | |
61c39f54 | 475 | unsigned int i; |
1b79df2f | 476 | const char *stropt; |
6239c175 | 477 | |
8b2d41ed | 478 | devc = sdi->priv; |
6239c175 | 479 | |
e73ffd42 BV |
480 | if (sdi->status != SR_ST_ACTIVE) |
481 | return SR_ERR_DEV_CLOSED; | |
482 | ||
2388ae86 | 483 | ret = SR_OK; |
584560f1 | 484 | switch (key) { |
2388ae86 | 485 | case SR_CONF_SAMPLERATE: |
a7684294 | 486 | devc->cur_samplerate = g_variant_get_uint64(data); |
2388ae86 BV |
487 | break; |
488 | case SR_CONF_LIMIT_SAMPLES: | |
a7684294 JH |
489 | devc->limit_msec = 0; |
490 | devc->limit_samples = g_variant_get_uint64(data); | |
2388ae86 BV |
491 | break; |
492 | case SR_CONF_LIMIT_MSEC: | |
a7684294 JH |
493 | devc->limit_msec = g_variant_get_uint64(data); |
494 | devc->limit_samples = 0; | |
2388ae86 | 495 | break; |
7a8a1aba BG |
496 | case SR_CONF_AVERAGING: |
497 | devc->avg = g_variant_get_boolean(data); | |
498 | sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling"); | |
499 | break; | |
500 | case SR_CONF_AVG_SAMPLES: | |
501 | devc->avg_samples = g_variant_get_uint64(data); | |
502 | sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples); | |
503 | break; | |
2388ae86 | 504 | case SR_CONF_PATTERN_MODE: |
53b4680f | 505 | if (!cg) |
660e398f | 506 | return SR_ERR_CHANNEL_GROUP; |
d00088ca | 507 | stropt = g_variant_get_string(data, NULL); |
49224c28 BV |
508 | logic_pattern = analog_pattern = -1; |
509 | for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) { | |
510 | if (!strcmp(stropt, logic_pattern_str[i])) { | |
511 | logic_pattern = i; | |
512 | break; | |
8b2d41ed | 513 | } |
49224c28 BV |
514 | } |
515 | for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) { | |
516 | if (!strcmp(stropt, analog_pattern_str[i])) { | |
517 | analog_pattern = i; | |
518 | break; | |
8b2d41ed | 519 | } |
49224c28 BV |
520 | } |
521 | if (logic_pattern == -1 && analog_pattern == -1) | |
522 | return SR_ERR_ARG; | |
523 | for (l = cg->channels; l; l = l->next) { | |
524 | ch = l->data; | |
525 | if (ch->type == SR_CHANNEL_LOGIC) { | |
526 | if (logic_pattern == -1) | |
527 | return SR_ERR_ARG; | |
528 | sr_dbg("Setting logic pattern to %s", | |
529 | logic_pattern_str[logic_pattern]); | |
530 | devc->logic_pattern = logic_pattern; | |
531 | /* Might as well do this now, these are static. */ | |
532 | if (logic_pattern == PATTERN_ALL_LOW) | |
533 | memset(devc->logic_data, 0x00, LOGIC_BUFSIZE); | |
534 | else if (logic_pattern == PATTERN_ALL_HIGH) | |
535 | memset(devc->logic_data, 0xff, LOGIC_BUFSIZE); | |
536 | } else if (ch->type == SR_CHANNEL_ANALOG) { | |
537 | if (analog_pattern == -1) | |
538 | return SR_ERR_ARG; | |
539 | sr_dbg("Setting analog pattern for channel %s to %s", | |
540 | ch->name, analog_pattern_str[analog_pattern]); | |
541 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
542 | ag->pattern = analog_pattern; | |
543 | } else | |
544 | return SR_ERR_BUG; | |
545 | } | |
2388ae86 | 546 | break; |
dddabe37 BV |
547 | case SR_CONF_AMPLITUDE: |
548 | if (!cg) | |
549 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 BV |
550 | for (l = cg->channels; l; l = l->next) { |
551 | ch = l->data; | |
552 | if (ch->type != SR_CHANNEL_ANALOG) | |
553 | return SR_ERR_ARG; | |
554 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
555 | ag->amplitude = g_variant_get_double(data); | |
556 | } | |
dddabe37 | 557 | break; |
2388ae86 | 558 | default: |
bd6fbf62 | 559 | ret = SR_ERR_NA; |
6239c175 UH |
560 | } |
561 | ||
562 | return ret; | |
563 | } | |
564 | ||
584560f1 | 565 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 566 | const struct sr_channel_group *cg) |
a1c743fc | 567 | { |
ba7dd8bb | 568 | struct sr_channel *ch; |
d00088ca BV |
569 | GVariant *gvar; |
570 | GVariantBuilder gvb; | |
a1c743fc | 571 | |
7a1da331 | 572 | if (key == SR_CONF_SCAN_OPTIONS) { |
584560f1 BV |
573 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
574 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
7a1da331 BV |
575 | return SR_OK; |
576 | } | |
577 | ||
390795c0 BV |
578 | if (key == SR_CONF_DEVICE_OPTIONS && !sdi) { |
579 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
1e4a7cac | 580 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); |
390795c0 BV |
581 | return SR_OK; |
582 | } | |
583 | ||
7a1da331 BV |
584 | if (!sdi) |
585 | return SR_ERR_ARG; | |
586 | ||
53b4680f | 587 | if (!cg) { |
7a1da331 BV |
588 | switch (key) { |
589 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 | 590 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
1e4a7cac | 591 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
7a1da331 BV |
592 | break; |
593 | case SR_CONF_SAMPLERATE: | |
594 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
595 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
596 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
597 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
598 | *data = g_variant_builder_end(&gvb); | |
599 | break; | |
600 | default: | |
601 | return SR_ERR_NA; | |
602 | } | |
603 | } else { | |
49224c28 | 604 | /* Any channel in the group will do. */ |
ba7dd8bb | 605 | ch = cg->channels->data; |
7a1da331 BV |
606 | switch (key) { |
607 | case SR_CONF_DEVICE_OPTIONS: | |
49224c28 | 608 | if (ch->type == SR_CHANNEL_LOGIC) |
8249889d | 609 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
49224c28 | 610 | devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic), |
584560f1 | 611 | sizeof(uint32_t)); |
49224c28 | 612 | else if (ch->type == SR_CHANNEL_ANALOG) |
8249889d | 613 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
49224c28 | 614 | devopts_cg_analog, ARRAY_SIZE(devopts_cg_analog), |
584560f1 | 615 | sizeof(uint32_t)); |
49224c28 BV |
616 | else |
617 | return SR_ERR_BUG; | |
7a1da331 BV |
618 | break; |
619 | case SR_CONF_PATTERN_MODE: | |
3f239f08 | 620 | if (ch->type == SR_CHANNEL_LOGIC) |
7a1da331 BV |
621 | *data = g_variant_new_strv(logic_pattern_str, |
622 | ARRAY_SIZE(logic_pattern_str)); | |
3f239f08 | 623 | else if (ch->type == SR_CHANNEL_ANALOG) |
7a1da331 BV |
624 | *data = g_variant_new_strv(analog_pattern_str, |
625 | ARRAY_SIZE(analog_pattern_str)); | |
2388ae86 BV |
626 | else |
627 | return SR_ERR_BUG; | |
7a1da331 BV |
628 | break; |
629 | default: | |
630 | return SR_ERR_NA; | |
631 | } | |
a1c743fc BV |
632 | } |
633 | ||
634 | return SR_OK; | |
635 | } | |
636 | ||
c07f60e7 | 637 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) |
85b5af06 | 638 | { |
61c39f54 | 639 | struct dev_context *devc; |
c07f60e7 BV |
640 | uint64_t i, j; |
641 | uint8_t pat; | |
85b5af06 | 642 | |
61c39f54 | 643 | devc = sdi->priv; |
85b5af06 | 644 | |
c07f60e7 | 645 | switch (devc->logic_pattern) { |
61c39f54 | 646 | case PATTERN_SIGROK: |
c07f60e7 BV |
647 | memset(devc->logic_data, 0x00, size); |
648 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
649 | for (j = 0; j < devc->logic_unitsize; j++) { | |
650 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
651 | devc->logic_data[i + j] = ~pat; | |
652 | } | |
653 | devc->step++; | |
917e0e71 BV |
654 | } |
655 | break; | |
61c39f54 | 656 | case PATTERN_RANDOM: |
5096c6a6 | 657 | for (i = 0; i < size; i++) |
61c39f54 | 658 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); |
85b5af06 | 659 | break; |
61c39f54 | 660 | case PATTERN_INC: |
c07f60e7 BV |
661 | for (i = 0; i < size; i++) { |
662 | for (j = 0; j < devc->logic_unitsize; j++) { | |
663 | devc->logic_data[i + j] = devc->step; | |
664 | } | |
665 | devc->step++; | |
666 | } | |
c03ed397 | 667 | break; |
61c39f54 BV |
668 | case PATTERN_ALL_LOW: |
669 | case PATTERN_ALL_HIGH: | |
670 | /* These were set when the pattern mode was selected. */ | |
c03ed397 UH |
671 | break; |
672 | default: | |
c07f60e7 | 673 | sr_err("Unknown pattern: %d.", devc->logic_pattern); |
c03ed397 | 674 | break; |
85b5af06 UH |
675 | } |
676 | } | |
677 | ||
7a8a1aba BG |
678 | static void send_analog_packet(struct analog_gen *ag, |
679 | struct sr_dev_inst *sdi, | |
680 | uint64_t *analog_sent, | |
681 | uint64_t analog_todo) | |
682 | { | |
683 | struct sr_datafeed_packet packet; | |
684 | struct dev_context *devc; | |
685 | uint64_t sending_now, to_avg; | |
686 | int ag_pattern_pos; | |
687 | unsigned int i; | |
688 | ||
689 | devc = sdi->priv; | |
690 | packet.type = SR_DF_ANALOG; | |
691 | packet.payload = &ag->packet; | |
692 | ||
693 | if (!devc->avg) { | |
694 | ag_pattern_pos = devc->analog_counter % ag->num_samples; | |
695 | sending_now = MIN(analog_todo, ag->num_samples-ag_pattern_pos); | |
696 | ag->packet.data = ag->pattern_data + ag_pattern_pos; | |
697 | ag->packet.num_samples = sending_now; | |
698 | sr_session_send(sdi, &packet); | |
699 | ||
700 | /* Whichever channel group gets there first. */ | |
701 | *analog_sent = MAX(*analog_sent, sending_now); | |
702 | } else { | |
703 | ag_pattern_pos = devc->analog_counter % ag->num_samples; | |
704 | to_avg = MIN(analog_todo, ag->num_samples-ag_pattern_pos); | |
705 | ||
706 | for (i = 0; i < to_avg; i++) { | |
707 | ag->avg_val = (ag->avg_val + | |
708 | *(ag->pattern_data + | |
709 | ag_pattern_pos + i)) / 2; | |
710 | ag->num_avgs++; | |
711 | /* Time to send averaged data? */ | |
712 | if (devc->avg_samples > 0 && | |
713 | ag->num_avgs >= devc->avg_samples) | |
714 | goto do_send; | |
715 | } | |
716 | ||
717 | if (devc->avg_samples == 0) { | |
718 | /* We're averaging all the samples, so wait with | |
719 | * sending until the very end. | |
720 | */ | |
721 | *analog_sent = ag->num_avgs; | |
722 | return; | |
723 | } | |
724 | ||
725 | do_send: | |
726 | ag->packet.data = &ag->avg_val; | |
727 | ag->packet.num_samples = 1; | |
728 | ||
729 | sr_session_send(sdi, &packet); | |
730 | *analog_sent = ag->num_avgs; | |
731 | ||
732 | ag->num_avgs = 0; | |
733 | ag->avg_val = 0.0f; | |
734 | } | |
735 | } | |
736 | ||
85b5af06 | 737 | /* Callback handling data */ |
61c39f54 | 738 | static int prepare_data(int fd, int revents, void *cb_data) |
85b5af06 | 739 | { |
61c39f54 BV |
740 | struct sr_dev_inst *sdi; |
741 | struct dev_context *devc; | |
b9c735a2 | 742 | struct sr_datafeed_packet packet; |
9c939c51 | 743 | struct sr_datafeed_logic logic; |
8b2d41ed | 744 | struct analog_gen *ag; |
49224c28 BV |
745 | GHashTableIter iter; |
746 | void *value; | |
b62bb97a | 747 | uint64_t logic_todo, analog_todo, expected_samplenum, analog_sent, sending_now; |
3b203673 | 748 | int64_t time, elapsed; |
1924f59f | 749 | |
cb93f8a9 UH |
750 | (void)fd; |
751 | (void)revents; | |
1924f59f | 752 | |
61c39f54 BV |
753 | sdi = cb_data; |
754 | devc = sdi->priv; | |
b62bb97a | 755 | logic_todo = analog_todo = 0; |
61c39f54 | 756 | |
b62bb97a | 757 | /* How many samples should we have sent by now? */ |
3b203673 AG |
758 | time = g_get_monotonic_time(); |
759 | elapsed = time - devc->starttime; | |
1a46cc62 | 760 | expected_samplenum = elapsed * devc->cur_samplerate / (1000 * 1000); |
7f4975b4 | 761 | |
b62bb97a BV |
762 | /* But never more than the limit, if there is one. */ |
763 | if (!devc->continuous) | |
764 | expected_samplenum = MIN(expected_samplenum, devc->limit_samples); | |
765 | ||
3b203673 | 766 | /* Of those, how many do we still have to send? */ |
b62bb97a BV |
767 | if (devc->num_logic_channels) |
768 | logic_todo = expected_samplenum - devc->logic_counter; | |
769 | if (devc->num_analog_channels) | |
770 | analog_todo = expected_samplenum - devc->analog_counter; | |
85b5af06 | 771 | |
7f4975b4 | 772 | while (logic_todo || analog_todo) { |
c07f60e7 | 773 | /* Logic */ |
b62bb97a BV |
774 | if (logic_todo > 0) { |
775 | sending_now = MIN(logic_todo, LOGIC_BUFSIZE / devc->logic_unitsize); | |
8b2d41ed BV |
776 | logic_generator(sdi, sending_now * devc->logic_unitsize); |
777 | packet.type = SR_DF_LOGIC; | |
778 | packet.payload = &logic; | |
779 | logic.length = sending_now * devc->logic_unitsize; | |
780 | logic.unitsize = devc->logic_unitsize; | |
781 | logic.data = devc->logic_data; | |
782 | sr_session_send(sdi, &packet); | |
7f4975b4 BV |
783 | logic_todo -= sending_now; |
784 | devc->logic_counter += sending_now; | |
8b2d41ed BV |
785 | } |
786 | ||
ba7dd8bb | 787 | /* Analog, one channel at a time */ |
b62bb97a BV |
788 | if (analog_todo > 0) { |
789 | analog_sent = 0; | |
49224c28 BV |
790 | |
791 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
792 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
7a8a1aba BG |
793 | send_analog_packet(value, sdi, |
794 | &analog_sent, analog_todo); | |
8b2d41ed | 795 | } |
b62bb97a BV |
796 | analog_todo -= analog_sent; |
797 | devc->analog_counter += analog_sent; | |
8b2d41ed | 798 | } |
3b203673 AG |
799 | } |
800 | ||
b62bb97a BV |
801 | if (!devc->continuous |
802 | && (!devc->num_logic_channels || devc->logic_counter >= devc->limit_samples) | |
803 | && (!devc->num_analog_channels || devc->analog_counter >= devc->limit_samples)) { | |
7a8a1aba BG |
804 | /* If we're averaging everything - now is the time to send data */ |
805 | if (devc->avg_samples == 0) { | |
806 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
807 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
808 | ag = value; | |
809 | packet.type = SR_DF_ANALOG; | |
810 | packet.payload = &ag->packet; | |
811 | ag->packet.data = &ag->avg_val; | |
812 | ag->packet.num_samples = 1; | |
813 | sr_session_send(sdi, &packet); | |
814 | } | |
815 | } | |
816 | ||
7f4975b4 | 817 | sr_dbg("Requested number of samples reached."); |
61c39f54 | 818 | dev_acquisition_stop(sdi, cb_data); |
c216d623 | 819 | return TRUE; |
85b5af06 | 820 | } |
1924f59f | 821 | |
85b5af06 UH |
822 | return TRUE; |
823 | } | |
824 | ||
6078d2c9 | 825 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 826 | { |
61c39f54 | 827 | struct dev_context *devc; |
49224c28 BV |
828 | GHashTableIter iter; |
829 | void *value; | |
85b5af06 | 830 | |
102f1239 BV |
831 | (void)cb_data; |
832 | ||
e73ffd42 BV |
833 | if (sdi->status != SR_ST_ACTIVE) |
834 | return SR_ERR_DEV_CLOSED; | |
835 | ||
61c39f54 | 836 | devc = sdi->priv; |
b62bb97a | 837 | devc->continuous = !devc->limit_samples; |
7f4975b4 | 838 | devc->logic_counter = devc->analog_counter = 0; |
85b5af06 | 839 | |
3b203673 AG |
840 | /* |
841 | * Setting two channels connected by a pipe is a remnant from when the | |
842 | * demo driver generated data in a thread, and collected and sent the | |
843 | * data in the main program loop. | |
844 | * They are kept here because it provides a convenient way of setting | |
845 | * up a timeout-based polling mechanism. | |
846 | */ | |
b4750a3a | 847 | if (pipe(devc->pipe_fds)) { |
92bcedf6 | 848 | sr_err("%s: pipe() failed", __func__); |
e46b8fb1 | 849 | return SR_ERR; |
c03ed397 | 850 | } |
85b5af06 | 851 | |
49224c28 BV |
852 | g_hash_table_iter_init(&iter, devc->ch_ag); |
853 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
854 | generate_analog_pattern(value, devc->cur_samplerate); | |
4374219b | 855 | |
e0532047 | 856 | devc->channel = g_io_channel_unix_new(devc->pipe_fds[0]); |
e0532047 | 857 | g_io_channel_set_flags(devc->channel, G_IO_FLAG_NONBLOCK, NULL); |
e6e8f8e0 | 858 | |
d35aaf02 | 859 | /* Set channel encoding to binary (default is UTF-8). */ |
e0532047 | 860 | g_io_channel_set_encoding(devc->channel, NULL, NULL); |
d35aaf02 | 861 | |
b62bb97a | 862 | /* Make channels unbuffered. */ |
e0532047 | 863 | g_io_channel_set_buffered(devc->channel, FALSE); |
d35aaf02 | 864 | |
b62bb97a BV |
865 | sr_session_source_add_channel(sdi->session, devc->channel, |
866 | G_IO_IN | G_IO_ERR, 40, prepare_data, (void *)sdi); | |
85b5af06 | 867 | |
4afdfd46 | 868 | /* Send header packet to the session bus. */ |
102f1239 | 869 | std_session_send_df_header(sdi, LOG_PREFIX); |
f366e86c | 870 | |
3b203673 AG |
871 | /* We use this timestamp to decide how many more samples to send. */ |
872 | devc->starttime = g_get_monotonic_time(); | |
873 | ||
e46b8fb1 | 874 | return SR_OK; |
6239c175 UH |
875 | } |
876 | ||
6078d2c9 | 877 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 878 | { |
8b2d41ed | 879 | struct dev_context *devc; |
c216d623 | 880 | struct sr_datafeed_packet packet; |
7fd3e859 | 881 | |
33ef7573 | 882 | (void)cb_data; |
7fd3e859 | 883 | |
8b2d41ed | 884 | devc = sdi->priv; |
a84f6ad3 | 885 | sr_dbg("Stopping acquisition."); |
49145a63 | 886 | |
102f1239 | 887 | sr_session_source_remove_channel(sdi->session, devc->channel); |
e0532047 | 888 | g_io_channel_shutdown(devc->channel, FALSE, NULL); |
2150a69b JH |
889 | g_io_channel_unref(devc->channel); |
890 | devc->channel = NULL; | |
c216d623 AG |
891 | |
892 | /* Send last packet. */ | |
893 | packet.type = SR_DF_END; | |
c07f60e7 | 894 | sr_session_send(sdi, &packet); |
7fd3e859 | 895 | |
3010f21c | 896 | return SR_OK; |
6239c175 UH |
897 | } |
898 | ||
c09f0b57 | 899 | SR_PRIV struct sr_dev_driver demo_driver_info = { |
e519ba86 UH |
900 | .name = "demo", |
901 | .longname = "Demo driver and pattern generator", | |
902 | .api_version = 1, | |
6078d2c9 UH |
903 | .init = init, |
904 | .cleanup = cleanup, | |
905 | .scan = scan, | |
906 | .dev_list = dev_list, | |
a6630742 | 907 | .dev_clear = NULL, |
035a1078 BV |
908 | .config_get = config_get, |
909 | .config_set = config_set, | |
a1c743fc | 910 | .config_list = config_list, |
6078d2c9 UH |
911 | .dev_open = dev_open, |
912 | .dev_close = dev_close, | |
913 | .dev_acquisition_start = dev_acquisition_start, | |
914 | .dev_acquisition_stop = dev_acquisition_stop, | |
b4750a3a | 915 | .priv = NULL, |
6239c175 | 916 | }; |