]>
Commit | Line | Data |
---|---|---|
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> |
6239c175 UH |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
21 | */ | |
22 | ||
23 | #include <stdlib.h> | |
85b5af06 | 24 | #include <unistd.h> |
6239c175 | 25 | #include <string.h> |
4374219b | 26 | #include <math.h> |
d35aaf02 UH |
27 | #ifdef _WIN32 |
28 | #include <io.h> | |
29 | #include <fcntl.h> | |
30 | #define pipe(fds) _pipe(fds, 4096, _O_BINARY) | |
31 | #endif | |
45c59c8b BV |
32 | #include "libsigrok.h" |
33 | #include "libsigrok-internal.h" | |
6239c175 | 34 | |
3544f848 | 35 | #define LOG_PREFIX "demo" |
92bcedf6 | 36 | |
3f239f08 UH |
37 | #define DEFAULT_NUM_LOGIC_CHANNELS 8 |
38 | #define DEFAULT_NUM_ANALOG_CHANNELS 4 | |
c03ed397 | 39 | |
8b2d41ed | 40 | /* The size in bytes of chunks to send through the session bus. */ |
61c39f54 | 41 | #define LOGIC_BUFSIZE 4096 |
8b2d41ed BV |
42 | /* Size of the analog pattern space per channel. */ |
43 | #define ANALOG_BUFSIZE 4096 | |
2474d87e | 44 | |
dddabe37 | 45 | #define DEFAULT_ANALOG_AMPLITUDE 25 |
4374219b DJ |
46 | #define ANALOG_SAMPLES_PER_PERIOD 20 |
47 | ||
2388ae86 | 48 | /* Logic patterns we can generate. */ |
e15f48c2 | 49 | enum { |
0d31276b | 50 | /** |
ba7dd8bb | 51 | * Spells "sigrok" across 8 channels using '0's (with '1's as |
61c39f54 | 52 | * "background") when displayed using the 'bits' output format. |
95035832 | 53 | * The pattern is repeated every 8 channels, shifted to the right |
c07f60e7 | 54 | * in time by one bit. |
0d31276b | 55 | */ |
c8f4624d | 56 | PATTERN_SIGROK, |
0d31276b | 57 | |
ba7dd8bb | 58 | /** Pseudo-random values on all channels. */ |
c8f4624d | 59 | PATTERN_RANDOM, |
0d31276b UH |
60 | |
61 | /** | |
95035832 | 62 | * Incrementing number across 8 channels. The pattern is repeated |
ba7dd8bb | 63 | * every 8 channels, shifted to the right in time by one bit. |
0d31276b | 64 | */ |
c8f4624d | 65 | PATTERN_INC, |
c03ed397 | 66 | |
ba7dd8bb | 67 | /** All channels have a low logic state. */ |
c03ed397 UH |
68 | PATTERN_ALL_LOW, |
69 | ||
ba7dd8bb | 70 | /** All channels have a high logic state. */ |
c03ed397 | 71 | PATTERN_ALL_HIGH, |
2388ae86 | 72 | }; |
8b2d41ed | 73 | |
2388ae86 BV |
74 | /* Analog patterns we can generate. */ |
75 | enum { | |
8b2d41ed BV |
76 | /** |
77 | * Square wave. | |
78 | */ | |
79 | PATTERN_SQUARE, | |
4374219b | 80 | PATTERN_SINE, |
091c9621 | 81 | PATTERN_TRIANGLE, |
9f54e0e8 | 82 | PATTERN_SAWTOOTH, |
e15f48c2 | 83 | }; |
85b5af06 | 84 | |
8b2d41ed | 85 | static const char *logic_pattern_str[] = { |
61c39f54 BV |
86 | "sigrok", |
87 | "random", | |
88 | "incremental", | |
89 | "all-low", | |
90 | "all-high", | |
91 | }; | |
92 | ||
8b2d41ed BV |
93 | static const char *analog_pattern_str[] = { |
94 | "square", | |
4374219b | 95 | "sine", |
091c9621 | 96 | "triangle", |
9f54e0e8 | 97 | "sawtooth", |
8b2d41ed BV |
98 | }; |
99 | ||
100 | struct analog_gen { | |
101 | int pattern; | |
dddabe37 | 102 | float amplitude; |
8b2d41ed BV |
103 | float pattern_data[ANALOG_BUFSIZE]; |
104 | unsigned int num_samples; | |
105 | struct sr_datafeed_analog packet; | |
106 | }; | |
107 | ||
b4750a3a BV |
108 | /* Private, per-device-instance driver context. */ |
109 | struct dev_context { | |
e15f48c2 | 110 | int pipe_fds[2]; |
e0532047 | 111 | GIOChannel *channel; |
a7684294 | 112 | uint64_t cur_samplerate; |
b62bb97a | 113 | gboolean continuous; |
a7684294 JH |
114 | uint64_t limit_samples; |
115 | uint64_t limit_msec; | |
7f4975b4 BV |
116 | uint64_t logic_counter; |
117 | uint64_t analog_counter; | |
3b203673 | 118 | int64_t starttime; |
61c39f54 | 119 | uint64_t step; |
8b2d41ed | 120 | /* Logic */ |
ba7dd8bb | 121 | int32_t num_logic_channels; |
c07f60e7 | 122 | unsigned int logic_unitsize; |
660e398f | 123 | /* There is only ever one logic channel group, so its pattern goes here. */ |
c07f60e7 BV |
124 | uint8_t logic_pattern; |
125 | unsigned char logic_data[LOGIC_BUFSIZE]; | |
8b2d41ed | 126 | /* Analog */ |
ba7dd8bb | 127 | int32_t num_analog_channels; |
49224c28 | 128 | GHashTable *ch_ag; |
c07f60e7 BV |
129 | }; |
130 | ||
584560f1 | 131 | static const uint32_t scanopts[] = { |
3f239f08 UH |
132 | SR_CONF_NUM_LOGIC_CHANNELS, |
133 | SR_CONF_NUM_ANALOG_CHANNELS, | |
e15f48c2 | 134 | }; |
85b5af06 | 135 | |
7a1da331 | 136 | static const int devopts[] = { |
1953564a | 137 | SR_CONF_LOGIC_ANALYZER, |
b62bb97a | 138 | SR_CONF_CONTINUOUS, |
5827f61b BV |
139 | SR_CONF_DEMO_DEV, |
140 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
141 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
142 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
143 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
144 | SR_CONF_NUM_LOGIC_CHANNELS | SR_CONF_GET, | |
145 | SR_CONF_NUM_ANALOG_CHANNELS | SR_CONF_GET, | |
146 | SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET, | |
6239c175 UH |
147 | }; |
148 | ||
49224c28 BV |
149 | static const int devopts_cg_logic[] = { |
150 | SR_CONF_PATTERN_MODE, | |
151 | }; | |
152 | ||
153 | static const int devopts_cg_analog[] = { | |
7a1da331 | 154 | SR_CONF_PATTERN_MODE, |
dddabe37 | 155 | SR_CONF_AMPLITUDE, |
7a1da331 BV |
156 | }; |
157 | ||
d00088ca BV |
158 | static const uint64_t samplerates[] = { |
159 | SR_HZ(1), | |
160 | SR_GHZ(1), | |
161 | SR_HZ(1), | |
4bfbf9fc BV |
162 | }; |
163 | ||
c8f4624d | 164 | static uint8_t pattern_sigrok[] = { |
917e0e71 BV |
165 | 0x4c, 0x92, 0x92, 0x92, 0x64, 0x00, 0x00, 0x00, |
166 | 0x82, 0xfe, 0xfe, 0x82, 0x00, 0x00, 0x00, 0x00, | |
167 | 0x7c, 0x82, 0x82, 0x92, 0x74, 0x00, 0x00, 0x00, | |
168 | 0xfe, 0x12, 0x12, 0x32, 0xcc, 0x00, 0x00, 0x00, | |
169 | 0x7c, 0x82, 0x82, 0x82, 0x7c, 0x00, 0x00, 0x00, | |
170 | 0xfe, 0x10, 0x28, 0x44, 0x82, 0x00, 0x00, 0x00, | |
171 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
172 | 0xbe, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
173 | }; | |
174 | ||
dcf03d6d | 175 | SR_PRIV struct sr_dev_driver demo_driver_info; |
a873c594 | 176 | static struct sr_dev_driver *di = &demo_driver_info; |
6239c175 | 177 | |
6078d2c9 | 178 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
6239c175 | 179 | |
c07f60e7 | 180 | |
6078d2c9 | 181 | static int init(struct sr_context *sr_ctx) |
61136ea6 | 182 | { |
f6beaac5 | 183 | return std_init(sr_ctx, di, LOG_PREFIX); |
61136ea6 BV |
184 | } |
185 | ||
49224c28 | 186 | static void generate_analog_pattern(struct analog_gen *ag, uint64_t sample_rate) |
8b2d41ed | 187 | { |
4374219b | 188 | double t, frequency; |
8b2d41ed BV |
189 | float value; |
190 | unsigned int num_samples, i; | |
191 | int last_end; | |
192 | ||
49224c28 | 193 | sr_dbg("Generating %s pattern.", analog_pattern_str[ag->pattern]); |
4374219b | 194 | |
49224c28 | 195 | num_samples = ANALOG_BUFSIZE / sizeof(float); |
8b2d41ed | 196 | |
4374219b | 197 | switch (ag->pattern) { |
8b2d41ed | 198 | case PATTERN_SQUARE: |
dddabe37 | 199 | value = ag->amplitude; |
8b2d41ed BV |
200 | last_end = 0; |
201 | for (i = 0; i < num_samples; i++) { | |
202 | if (i % 5 == 0) | |
203 | value = -value; | |
204 | if (i % 10 == 0) | |
205 | last_end = i - 1; | |
206 | ag->pattern_data[i] = value; | |
207 | } | |
208 | ag->num_samples = last_end; | |
209 | break; | |
4374219b DJ |
210 | |
211 | case PATTERN_SINE: | |
9d156555 | 212 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
4374219b DJ |
213 | |
214 | /* Make sure the number of samples we put out is an integer | |
215 | * multiple of our period size */ | |
216 | /* FIXME we actually need only one period. A ringbuffer would be | |
217 | * usefull here.*/ | |
218 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
219 | num_samples--; | |
220 | ||
221 | for (i = 0; i < num_samples; i++) { | |
222 | t = (double) i / (double) sample_rate; | |
dddabe37 | 223 | ag->pattern_data[i] = ag->amplitude * |
4374219b DJ |
224 | sin(2 * M_PI * frequency * t); |
225 | } | |
226 | ||
091c9621 DJ |
227 | ag->num_samples = num_samples; |
228 | break; | |
229 | ||
230 | case PATTERN_TRIANGLE: | |
9d156555 | 231 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
091c9621 DJ |
232 | |
233 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
234 | num_samples--; | |
235 | ||
236 | for (i = 0; i < num_samples; i++) { | |
237 | t = (double) i / (double) sample_rate; | |
dddabe37 | 238 | ag->pattern_data[i] = (2 * ag->amplitude / M_PI) * |
091c9621 DJ |
239 | asin(sin(2 * M_PI * frequency * t)); |
240 | } | |
241 | ||
9f54e0e8 DJ |
242 | ag->num_samples = num_samples; |
243 | break; | |
244 | ||
245 | case PATTERN_SAWTOOTH: | |
9d156555 | 246 | frequency = (double) sample_rate / ANALOG_SAMPLES_PER_PERIOD; |
9f54e0e8 DJ |
247 | |
248 | while (num_samples % ANALOG_SAMPLES_PER_PERIOD != 0) | |
249 | num_samples--; | |
250 | ||
251 | for (i = 0; i < num_samples; i++) { | |
252 | t = (double) i / (double) sample_rate; | |
dddabe37 | 253 | ag->pattern_data[i] = 2 * ag->amplitude * |
9f54e0e8 DJ |
254 | ((t * frequency) - floor(0.5f + t * frequency)); |
255 | } | |
256 | ||
4374219b DJ |
257 | ag->num_samples = num_samples; |
258 | break; | |
8b2d41ed BV |
259 | } |
260 | } | |
261 | ||
6078d2c9 | 262 | static GSList *scan(GSList *options) |
6239c175 | 263 | { |
b4750a3a | 264 | struct drv_context *drvc; |
33ef7573 | 265 | struct dev_context *devc; |
c07f60e7 | 266 | struct sr_dev_inst *sdi; |
ba7dd8bb | 267 | struct sr_channel *ch; |
49224c28 | 268 | struct sr_channel_group *cg, *acg; |
c07f60e7 | 269 | struct sr_config *src; |
8b2d41ed | 270 | struct analog_gen *ag; |
c07f60e7 | 271 | GSList *devices, *l; |
ba7dd8bb UH |
272 | int num_logic_channels, num_analog_channels, pattern, i; |
273 | char channel_name[16]; | |
067d0716 | 274 | |
a873c594 | 275 | drvc = di->priv; |
4b97c74e | 276 | |
3f239f08 UH |
277 | num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS; |
278 | num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS; | |
c07f60e7 BV |
279 | for (l = options; l; l = l->next) { |
280 | src = l->data; | |
281 | switch (src->key) { | |
3f239f08 | 282 | case SR_CONF_NUM_LOGIC_CHANNELS: |
ba7dd8bb | 283 | num_logic_channels = g_variant_get_int32(src->data); |
c07f60e7 | 284 | break; |
3f239f08 | 285 | case SR_CONF_NUM_ANALOG_CHANNELS: |
ba7dd8bb | 286 | num_analog_channels = g_variant_get_int32(src->data); |
c07f60e7 BV |
287 | break; |
288 | } | |
289 | } | |
85b5af06 | 290 | |
c07f60e7 | 291 | devices = NULL; |
61c39f54 | 292 | sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, "Demo device", NULL, NULL); |
c03ed397 | 293 | if (!sdi) { |
e45ad6e2 UH |
294 | sr_err("Device instance creation failed."); |
295 | return NULL; | |
c03ed397 | 296 | } |
a873c594 | 297 | sdi->driver = di; |
e15f48c2 | 298 | |
49224c28 | 299 | devc = g_malloc(sizeof(struct dev_context)); |
8b2d41ed BV |
300 | devc->cur_samplerate = SR_KHZ(200); |
301 | devc->limit_samples = 0; | |
302 | devc->limit_msec = 0; | |
303 | devc->step = 0; | |
b62bb97a | 304 | devc->continuous = FALSE; |
ba7dd8bb UH |
305 | devc->num_logic_channels = num_logic_channels; |
306 | devc->logic_unitsize = (devc->num_logic_channels + 7) / 8; | |
8b2d41ed | 307 | devc->logic_pattern = PATTERN_SIGROK; |
ba7dd8bb | 308 | devc->num_analog_channels = num_analog_channels; |
8b2d41ed | 309 | |
ba7dd8bb | 310 | /* Logic channels, all in one channel group. */ |
49224c28 | 311 | cg = g_malloc0(sizeof(struct sr_channel_group)); |
40fd0264 | 312 | cg->name = g_strdup("Logic"); |
ba7dd8bb UH |
313 | for (i = 0; i < num_logic_channels; i++) { |
314 | sprintf(channel_name, "D%d", i); | |
3f239f08 | 315 | if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name))) |
87ca93c5 | 316 | return NULL; |
ba7dd8bb UH |
317 | sdi->channels = g_slist_append(sdi->channels, ch); |
318 | cg->channels = g_slist_append(cg->channels, ch); | |
87ca93c5 | 319 | } |
40fd0264 | 320 | sdi->channel_groups = g_slist_append(NULL, cg); |
87ca93c5 | 321 | |
ba7dd8bb | 322 | /* Analog channels, channel groups and pattern generators. */ |
2b36d6c6 | 323 | pattern = 0; |
49224c28 BV |
324 | /* An "Analog" channel group with all analog channels in it. */ |
325 | acg = g_malloc0(sizeof(struct sr_channel_group)); | |
326 | acg->name = g_strdup("Analog"); | |
327 | sdi->channel_groups = g_slist_append(sdi->channel_groups, acg); | |
328 | ||
329 | devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal); | |
ba7dd8bb | 330 | for (i = 0; i < num_analog_channels; i++) { |
49224c28 BV |
331 | snprintf(channel_name, 16, "A%d", i); |
332 | ch = sr_channel_new(i + num_logic_channels, SR_CHANNEL_ANALOG, | |
333 | TRUE, channel_name); | |
ba7dd8bb | 334 | sdi->channels = g_slist_append(sdi->channels, ch); |
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; |
49224c28 | 352 | g_hash_table_insert(devc->ch_ag, ch, ag); |
2b36d6c6 BV |
353 | |
354 | if (++pattern == ARRAY_SIZE(analog_pattern_str)) | |
355 | pattern = 0; | |
33ef7573 | 356 | } |
33ef7573 JH |
357 | |
358 | sdi->priv = devc; | |
8b2d41ed BV |
359 | devices = g_slist_append(devices, sdi); |
360 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
33ef7573 | 361 | |
067d0716 | 362 | return devices; |
6239c175 UH |
363 | } |
364 | ||
6078d2c9 | 365 | static GSList *dev_list(void) |
811deee4 | 366 | { |
0e94d524 | 367 | return ((struct drv_context *)(di->priv))->instances; |
811deee4 BV |
368 | } |
369 | ||
6078d2c9 | 370 | static int dev_open(struct sr_dev_inst *sdi) |
6239c175 | 371 | { |
e73ffd42 | 372 | sdi->status = SR_ST_ACTIVE; |
697785d1 | 373 | |
e46b8fb1 | 374 | return SR_OK; |
6239c175 UH |
375 | } |
376 | ||
6078d2c9 | 377 | static int dev_close(struct sr_dev_inst *sdi) |
6239c175 | 378 | { |
decfe89d | 379 | sdi->status = SR_ST_INACTIVE; |
697785d1 UH |
380 | |
381 | return SR_OK; | |
6239c175 UH |
382 | } |
383 | ||
ed0b7fed BV |
384 | static void clear_helper(void *priv) |
385 | { | |
386 | struct dev_context *devc; | |
49224c28 BV |
387 | GHashTableIter iter; |
388 | void *value; | |
ed0b7fed BV |
389 | |
390 | devc = priv; | |
49224c28 BV |
391 | |
392 | /* Analog generators. */ | |
393 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
394 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
395 | g_free(value); | |
396 | g_hash_table_unref(devc->ch_ag); | |
ed0b7fed BV |
397 | g_free(devc); |
398 | } | |
399 | ||
6078d2c9 | 400 | static int cleanup(void) |
6239c175 | 401 | { |
ed0b7fed | 402 | return std_dev_clear(di, clear_helper); |
6239c175 UH |
403 | } |
404 | ||
584560f1 | 405 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 406 | const struct sr_channel_group *cg) |
6239c175 | 407 | { |
c07f60e7 | 408 | struct dev_context *devc; |
ba7dd8bb | 409 | struct sr_channel *ch; |
2388ae86 BV |
410 | struct analog_gen *ag; |
411 | int pattern; | |
6f57fd96 | 412 | |
2388ae86 BV |
413 | if (!sdi) |
414 | return SR_ERR_ARG; | |
8f996b89 | 415 | |
c07f60e7 | 416 | devc = sdi->priv; |
584560f1 | 417 | switch (key) { |
123e1313 | 418 | case SR_CONF_SAMPLERATE: |
a7684294 | 419 | *data = g_variant_new_uint64(devc->cur_samplerate); |
6239c175 | 420 | break; |
2474d87e | 421 | case SR_CONF_LIMIT_SAMPLES: |
a7684294 | 422 | *data = g_variant_new_uint64(devc->limit_samples); |
2474d87e BV |
423 | break; |
424 | case SR_CONF_LIMIT_MSEC: | |
a7684294 | 425 | *data = g_variant_new_uint64(devc->limit_msec); |
2474d87e BV |
426 | break; |
427 | case SR_CONF_PATTERN_MODE: | |
53b4680f | 428 | if (!cg) |
660e398f | 429 | return SR_ERR_CHANNEL_GROUP; |
49224c28 | 430 | /* Any channel in the group will do. */ |
ba7dd8bb | 431 | ch = cg->channels->data; |
3f239f08 | 432 | if (ch->type == SR_CHANNEL_LOGIC) { |
2388ae86 BV |
433 | pattern = devc->logic_pattern; |
434 | *data = g_variant_new_string(logic_pattern_str[pattern]); | |
3f239f08 | 435 | } else if (ch->type == SR_CHANNEL_ANALOG) { |
49224c28 | 436 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
2388ae86 BV |
437 | pattern = ag->pattern; |
438 | *data = g_variant_new_string(analog_pattern_str[pattern]); | |
439 | } else | |
440 | return SR_ERR_BUG; | |
c07f60e7 | 441 | break; |
3f239f08 | 442 | case SR_CONF_NUM_LOGIC_CHANNELS: |
ba7dd8bb | 443 | *data = g_variant_new_int32(devc->num_logic_channels); |
c07f60e7 | 444 | break; |
3f239f08 | 445 | case SR_CONF_NUM_ANALOG_CHANNELS: |
ba7dd8bb | 446 | *data = g_variant_new_int32(devc->num_analog_channels); |
2474d87e | 447 | break; |
dddabe37 BV |
448 | case SR_CONF_AMPLITUDE: |
449 | if (!cg) | |
450 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 | 451 | /* Any channel in the group will do. */ |
dddabe37 BV |
452 | ch = cg->channels->data; |
453 | if (ch->type != SR_CHANNEL_ANALOG) | |
454 | return SR_ERR_ARG; | |
49224c28 | 455 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
dddabe37 BV |
456 | *data = g_variant_new_double(ag->amplitude); |
457 | break; | |
7dfcf010 | 458 | default: |
bd6fbf62 | 459 | return SR_ERR_NA; |
6239c175 UH |
460 | } |
461 | ||
dfb0fa1a | 462 | return SR_OK; |
6239c175 UH |
463 | } |
464 | ||
584560f1 | 465 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 466 | const struct sr_channel_group *cg) |
6239c175 | 467 | { |
8b2d41ed | 468 | struct dev_context *devc; |
4374219b | 469 | struct analog_gen *ag; |
ba7dd8bb | 470 | struct sr_channel *ch; |
49224c28 BV |
471 | GSList *l; |
472 | int logic_pattern, analog_pattern, ret; | |
61c39f54 | 473 | unsigned int i; |
1b79df2f | 474 | const char *stropt; |
6239c175 | 475 | |
8b2d41ed | 476 | devc = sdi->priv; |
6239c175 | 477 | |
e73ffd42 BV |
478 | if (sdi->status != SR_ST_ACTIVE) |
479 | return SR_ERR_DEV_CLOSED; | |
480 | ||
2388ae86 | 481 | ret = SR_OK; |
584560f1 | 482 | switch (key) { |
2388ae86 | 483 | case SR_CONF_SAMPLERATE: |
a7684294 | 484 | devc->cur_samplerate = g_variant_get_uint64(data); |
61c39f54 | 485 | sr_dbg("Setting samplerate to %" PRIu64, devc->cur_samplerate); |
2388ae86 BV |
486 | break; |
487 | case SR_CONF_LIMIT_SAMPLES: | |
a7684294 JH |
488 | devc->limit_msec = 0; |
489 | devc->limit_samples = g_variant_get_uint64(data); | |
8b2d41ed | 490 | sr_dbg("Setting sample limit to %" PRIu64, devc->limit_samples); |
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; | |
8b2d41ed | 495 | sr_dbg("Setting time limit to %" PRIu64"ms", devc->limit_msec); |
2388ae86 BV |
496 | break; |
497 | case SR_CONF_PATTERN_MODE: | |
53b4680f | 498 | if (!cg) |
660e398f | 499 | return SR_ERR_CHANNEL_GROUP; |
d00088ca | 500 | stropt = g_variant_get_string(data, NULL); |
ba7dd8bb | 501 | ch = cg->channels->data; |
49224c28 BV |
502 | logic_pattern = analog_pattern = -1; |
503 | for (i = 0; i < ARRAY_SIZE(logic_pattern_str); i++) { | |
504 | if (!strcmp(stropt, logic_pattern_str[i])) { | |
505 | logic_pattern = i; | |
506 | break; | |
8b2d41ed | 507 | } |
49224c28 BV |
508 | } |
509 | for (i = 0; i < ARRAY_SIZE(analog_pattern_str); i++) { | |
510 | if (!strcmp(stropt, analog_pattern_str[i])) { | |
511 | analog_pattern = i; | |
512 | break; | |
8b2d41ed | 513 | } |
49224c28 BV |
514 | } |
515 | if (logic_pattern == -1 && analog_pattern == -1) | |
516 | return SR_ERR_ARG; | |
517 | for (l = cg->channels; l; l = l->next) { | |
518 | ch = l->data; | |
519 | if (ch->type == SR_CHANNEL_LOGIC) { | |
520 | if (logic_pattern == -1) | |
521 | return SR_ERR_ARG; | |
522 | sr_dbg("Setting logic pattern to %s", | |
523 | logic_pattern_str[logic_pattern]); | |
524 | devc->logic_pattern = logic_pattern; | |
525 | /* Might as well do this now, these are static. */ | |
526 | if (logic_pattern == PATTERN_ALL_LOW) | |
527 | memset(devc->logic_data, 0x00, LOGIC_BUFSIZE); | |
528 | else if (logic_pattern == PATTERN_ALL_HIGH) | |
529 | memset(devc->logic_data, 0xff, LOGIC_BUFSIZE); | |
530 | } else if (ch->type == SR_CHANNEL_ANALOG) { | |
531 | if (analog_pattern == -1) | |
532 | return SR_ERR_ARG; | |
533 | sr_dbg("Setting analog pattern for channel %s to %s", | |
534 | ch->name, analog_pattern_str[analog_pattern]); | |
535 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
536 | ag->pattern = analog_pattern; | |
537 | } else | |
538 | return SR_ERR_BUG; | |
539 | } | |
2388ae86 | 540 | break; |
dddabe37 BV |
541 | case SR_CONF_AMPLITUDE: |
542 | if (!cg) | |
543 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 BV |
544 | for (l = cg->channels; l; l = l->next) { |
545 | ch = l->data; | |
546 | if (ch->type != SR_CHANNEL_ANALOG) | |
547 | return SR_ERR_ARG; | |
548 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
549 | ag->amplitude = g_variant_get_double(data); | |
550 | } | |
dddabe37 | 551 | break; |
2388ae86 | 552 | default: |
bd6fbf62 | 553 | ret = SR_ERR_NA; |
6239c175 UH |
554 | } |
555 | ||
556 | return ret; | |
557 | } | |
558 | ||
584560f1 | 559 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 560 | const struct sr_channel_group *cg) |
a1c743fc | 561 | { |
ba7dd8bb | 562 | struct sr_channel *ch; |
d00088ca BV |
563 | GVariant *gvar; |
564 | GVariantBuilder gvb; | |
a1c743fc BV |
565 | |
566 | (void)sdi; | |
567 | ||
7a1da331 | 568 | if (key == SR_CONF_SCAN_OPTIONS) { |
584560f1 BV |
569 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
570 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
7a1da331 BV |
571 | return SR_OK; |
572 | } | |
573 | ||
574 | if (!sdi) | |
575 | return SR_ERR_ARG; | |
576 | ||
53b4680f | 577 | if (!cg) { |
7a1da331 BV |
578 | switch (key) { |
579 | case SR_CONF_DEVICE_OPTIONS: | |
584560f1 BV |
580 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
581 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
7a1da331 BV |
582 | break; |
583 | case SR_CONF_SAMPLERATE: | |
584 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
585 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
586 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
587 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
588 | *data = g_variant_builder_end(&gvb); | |
589 | break; | |
590 | default: | |
591 | return SR_ERR_NA; | |
592 | } | |
593 | } else { | |
49224c28 | 594 | /* Any channel in the group will do. */ |
ba7dd8bb | 595 | ch = cg->channels->data; |
7a1da331 BV |
596 | switch (key) { |
597 | case SR_CONF_DEVICE_OPTIONS: | |
49224c28 BV |
598 | if (ch->type == SR_CHANNEL_LOGIC) |
599 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
600 | devopts_cg_logic, ARRAY_SIZE(devopts_cg_logic), | |
584560f1 | 601 | sizeof(uint32_t)); |
49224c28 BV |
602 | else if (ch->type == SR_CHANNEL_ANALOG) |
603 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
604 | devopts_cg_analog, ARRAY_SIZE(devopts_cg_analog), | |
584560f1 | 605 | sizeof(uint32_t)); |
49224c28 BV |
606 | else |
607 | return SR_ERR_BUG; | |
7a1da331 BV |
608 | break; |
609 | case SR_CONF_PATTERN_MODE: | |
3f239f08 | 610 | if (ch->type == SR_CHANNEL_LOGIC) |
7a1da331 BV |
611 | *data = g_variant_new_strv(logic_pattern_str, |
612 | ARRAY_SIZE(logic_pattern_str)); | |
3f239f08 | 613 | else if (ch->type == SR_CHANNEL_ANALOG) |
7a1da331 BV |
614 | *data = g_variant_new_strv(analog_pattern_str, |
615 | ARRAY_SIZE(analog_pattern_str)); | |
2388ae86 BV |
616 | else |
617 | return SR_ERR_BUG; | |
7a1da331 BV |
618 | break; |
619 | default: | |
620 | return SR_ERR_NA; | |
621 | } | |
a1c743fc BV |
622 | } |
623 | ||
624 | return SR_OK; | |
625 | } | |
626 | ||
c07f60e7 | 627 | static void logic_generator(struct sr_dev_inst *sdi, uint64_t size) |
85b5af06 | 628 | { |
61c39f54 | 629 | struct dev_context *devc; |
c07f60e7 BV |
630 | uint64_t i, j; |
631 | uint8_t pat; | |
85b5af06 | 632 | |
61c39f54 | 633 | devc = sdi->priv; |
85b5af06 | 634 | |
c07f60e7 | 635 | switch (devc->logic_pattern) { |
61c39f54 | 636 | case PATTERN_SIGROK: |
c07f60e7 BV |
637 | memset(devc->logic_data, 0x00, size); |
638 | for (i = 0; i < size; i += devc->logic_unitsize) { | |
639 | for (j = 0; j < devc->logic_unitsize; j++) { | |
640 | pat = pattern_sigrok[(devc->step + j) % sizeof(pattern_sigrok)] >> 1; | |
641 | devc->logic_data[i + j] = ~pat; | |
642 | } | |
643 | devc->step++; | |
917e0e71 BV |
644 | } |
645 | break; | |
61c39f54 | 646 | case PATTERN_RANDOM: |
5096c6a6 | 647 | for (i = 0; i < size; i++) |
61c39f54 | 648 | devc->logic_data[i] = (uint8_t)(rand() & 0xff); |
85b5af06 | 649 | break; |
61c39f54 | 650 | case PATTERN_INC: |
c07f60e7 BV |
651 | for (i = 0; i < size; i++) { |
652 | for (j = 0; j < devc->logic_unitsize; j++) { | |
653 | devc->logic_data[i + j] = devc->step; | |
654 | } | |
655 | devc->step++; | |
656 | } | |
c03ed397 | 657 | break; |
61c39f54 BV |
658 | case PATTERN_ALL_LOW: |
659 | case PATTERN_ALL_HIGH: | |
660 | /* These were set when the pattern mode was selected. */ | |
c03ed397 UH |
661 | break; |
662 | default: | |
c07f60e7 | 663 | sr_err("Unknown pattern: %d.", devc->logic_pattern); |
c03ed397 | 664 | break; |
85b5af06 UH |
665 | } |
666 | } | |
667 | ||
85b5af06 | 668 | /* Callback handling data */ |
61c39f54 | 669 | static int prepare_data(int fd, int revents, void *cb_data) |
85b5af06 | 670 | { |
61c39f54 BV |
671 | struct sr_dev_inst *sdi; |
672 | struct dev_context *devc; | |
b9c735a2 | 673 | struct sr_datafeed_packet packet; |
9c939c51 | 674 | struct sr_datafeed_logic logic; |
8b2d41ed | 675 | struct analog_gen *ag; |
49224c28 BV |
676 | GHashTableIter iter; |
677 | void *value; | |
b62bb97a | 678 | uint64_t logic_todo, analog_todo, expected_samplenum, analog_sent, sending_now; |
3b203673 | 679 | int64_t time, elapsed; |
1924f59f | 680 | |
cb93f8a9 UH |
681 | (void)fd; |
682 | (void)revents; | |
1924f59f | 683 | |
61c39f54 BV |
684 | sdi = cb_data; |
685 | devc = sdi->priv; | |
b62bb97a | 686 | logic_todo = analog_todo = 0; |
61c39f54 | 687 | |
b62bb97a | 688 | /* How many samples should we have sent by now? */ |
3b203673 AG |
689 | time = g_get_monotonic_time(); |
690 | elapsed = time - devc->starttime; | |
a7684294 | 691 | expected_samplenum = elapsed * devc->cur_samplerate / 1000000; |
7f4975b4 | 692 | |
b62bb97a BV |
693 | /* But never more than the limit, if there is one. */ |
694 | if (!devc->continuous) | |
695 | expected_samplenum = MIN(expected_samplenum, devc->limit_samples); | |
696 | ||
3b203673 | 697 | /* Of those, how many do we still have to send? */ |
b62bb97a BV |
698 | if (devc->num_logic_channels) |
699 | logic_todo = expected_samplenum - devc->logic_counter; | |
700 | if (devc->num_analog_channels) | |
701 | analog_todo = expected_samplenum - devc->analog_counter; | |
85b5af06 | 702 | |
7f4975b4 | 703 | while (logic_todo || analog_todo) { |
c07f60e7 | 704 | /* Logic */ |
b62bb97a BV |
705 | if (logic_todo > 0) { |
706 | sending_now = MIN(logic_todo, LOGIC_BUFSIZE / devc->logic_unitsize); | |
8b2d41ed BV |
707 | logic_generator(sdi, sending_now * devc->logic_unitsize); |
708 | packet.type = SR_DF_LOGIC; | |
709 | packet.payload = &logic; | |
710 | logic.length = sending_now * devc->logic_unitsize; | |
711 | logic.unitsize = devc->logic_unitsize; | |
712 | logic.data = devc->logic_data; | |
713 | sr_session_send(sdi, &packet); | |
7f4975b4 BV |
714 | logic_todo -= sending_now; |
715 | devc->logic_counter += sending_now; | |
8b2d41ed BV |
716 | } |
717 | ||
ba7dd8bb | 718 | /* Analog, one channel at a time */ |
b62bb97a BV |
719 | if (analog_todo > 0) { |
720 | analog_sent = 0; | |
49224c28 BV |
721 | |
722 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
723 | while (g_hash_table_iter_next(&iter, NULL, &value)) { | |
724 | ag = value; | |
8b2d41ed BV |
725 | packet.type = SR_DF_ANALOG; |
726 | packet.payload = &ag->packet; | |
4374219b DJ |
727 | |
728 | /* FIXME we should make sure we output a whole | |
729 | * period of data before we send out again the | |
730 | * beginning of our buffer. A ring buffer would | |
731 | * help here as well */ | |
732 | ||
b62bb97a BV |
733 | sending_now = MIN(analog_todo, ag->num_samples); |
734 | ag->packet.num_samples = sending_now; | |
8b2d41ed | 735 | sr_session_send(sdi, &packet); |
b62bb97a BV |
736 | |
737 | /* Whichever channel group gets there first. */ | |
738 | analog_sent = MAX(analog_sent, sending_now); | |
8b2d41ed | 739 | } |
b62bb97a BV |
740 | analog_todo -= analog_sent; |
741 | devc->analog_counter += analog_sent; | |
8b2d41ed | 742 | } |
3b203673 AG |
743 | } |
744 | ||
b62bb97a BV |
745 | if (!devc->continuous |
746 | && (!devc->num_logic_channels || devc->logic_counter >= devc->limit_samples) | |
747 | && (!devc->num_analog_channels || devc->analog_counter >= devc->limit_samples)) { | |
7f4975b4 | 748 | sr_dbg("Requested number of samples reached."); |
61c39f54 | 749 | dev_acquisition_stop(sdi, cb_data); |
c216d623 | 750 | return TRUE; |
85b5af06 | 751 | } |
1924f59f | 752 | |
85b5af06 UH |
753 | return TRUE; |
754 | } | |
755 | ||
6078d2c9 | 756 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 757 | { |
61c39f54 | 758 | struct dev_context *devc; |
49224c28 BV |
759 | GHashTableIter iter; |
760 | void *value; | |
85b5af06 | 761 | |
102f1239 BV |
762 | (void)cb_data; |
763 | ||
e73ffd42 BV |
764 | if (sdi->status != SR_ST_ACTIVE) |
765 | return SR_ERR_DEV_CLOSED; | |
766 | ||
61c39f54 | 767 | devc = sdi->priv; |
b62bb97a | 768 | devc->continuous = !devc->limit_samples; |
7f4975b4 | 769 | devc->logic_counter = devc->analog_counter = 0; |
85b5af06 | 770 | |
3b203673 AG |
771 | /* |
772 | * Setting two channels connected by a pipe is a remnant from when the | |
773 | * demo driver generated data in a thread, and collected and sent the | |
774 | * data in the main program loop. | |
775 | * They are kept here because it provides a convenient way of setting | |
776 | * up a timeout-based polling mechanism. | |
777 | */ | |
b4750a3a | 778 | if (pipe(devc->pipe_fds)) { |
92bcedf6 | 779 | sr_err("%s: pipe() failed", __func__); |
e46b8fb1 | 780 | return SR_ERR; |
c03ed397 | 781 | } |
85b5af06 | 782 | |
49224c28 BV |
783 | g_hash_table_iter_init(&iter, devc->ch_ag); |
784 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
785 | generate_analog_pattern(value, devc->cur_samplerate); | |
4374219b | 786 | |
e0532047 | 787 | devc->channel = g_io_channel_unix_new(devc->pipe_fds[0]); |
e0532047 | 788 | g_io_channel_set_flags(devc->channel, G_IO_FLAG_NONBLOCK, NULL); |
e6e8f8e0 | 789 | |
d35aaf02 | 790 | /* Set channel encoding to binary (default is UTF-8). */ |
e0532047 | 791 | g_io_channel_set_encoding(devc->channel, NULL, NULL); |
d35aaf02 | 792 | |
b62bb97a | 793 | /* Make channels unbuffered. */ |
e0532047 | 794 | g_io_channel_set_buffered(devc->channel, FALSE); |
d35aaf02 | 795 | |
b62bb97a BV |
796 | sr_session_source_add_channel(sdi->session, devc->channel, |
797 | G_IO_IN | G_IO_ERR, 40, prepare_data, (void *)sdi); | |
85b5af06 | 798 | |
4afdfd46 | 799 | /* Send header packet to the session bus. */ |
102f1239 | 800 | std_session_send_df_header(sdi, LOG_PREFIX); |
f366e86c | 801 | |
3b203673 AG |
802 | /* We use this timestamp to decide how many more samples to send. */ |
803 | devc->starttime = g_get_monotonic_time(); | |
804 | ||
e46b8fb1 | 805 | return SR_OK; |
6239c175 UH |
806 | } |
807 | ||
6078d2c9 | 808 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
6239c175 | 809 | { |
8b2d41ed | 810 | struct dev_context *devc; |
c216d623 | 811 | struct sr_datafeed_packet packet; |
7fd3e859 | 812 | |
33ef7573 | 813 | (void)cb_data; |
7fd3e859 | 814 | |
8b2d41ed | 815 | devc = sdi->priv; |
a84f6ad3 | 816 | sr_dbg("Stopping acquisition."); |
49145a63 | 817 | |
102f1239 | 818 | sr_session_source_remove_channel(sdi->session, devc->channel); |
e0532047 | 819 | g_io_channel_shutdown(devc->channel, FALSE, NULL); |
2150a69b JH |
820 | g_io_channel_unref(devc->channel); |
821 | devc->channel = NULL; | |
c216d623 AG |
822 | |
823 | /* Send last packet. */ | |
824 | packet.type = SR_DF_END; | |
c07f60e7 | 825 | sr_session_send(sdi, &packet); |
7fd3e859 | 826 | |
3010f21c | 827 | return SR_OK; |
6239c175 UH |
828 | } |
829 | ||
c09f0b57 | 830 | SR_PRIV struct sr_dev_driver demo_driver_info = { |
e519ba86 UH |
831 | .name = "demo", |
832 | .longname = "Demo driver and pattern generator", | |
833 | .api_version = 1, | |
6078d2c9 UH |
834 | .init = init, |
835 | .cleanup = cleanup, | |
836 | .scan = scan, | |
837 | .dev_list = dev_list, | |
a6630742 | 838 | .dev_clear = NULL, |
035a1078 BV |
839 | .config_get = config_get, |
840 | .config_set = config_set, | |
a1c743fc | 841 | .config_list = config_list, |
6078d2c9 UH |
842 | .dev_open = dev_open, |
843 | .dev_close = dev_close, | |
844 | .dev_acquisition_start = dev_acquisition_start, | |
845 | .dev_acquisition_stop = dev_acquisition_stop, | |
b4750a3a | 846 | .priv = NULL, |
6239c175 | 847 | }; |