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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 | |
2ea1fdf1 | 20 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
6239c175 UH |
21 | */ |
22 | ||
6ec6c43b | 23 | #include <config.h> |
6239c175 UH |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
4374219b | 26 | #include <math.h> |
c1aae900 | 27 | #include <libsigrok/libsigrok.h> |
45c59c8b | 28 | #include "libsigrok-internal.h" |
ba508e22 | 29 | #include "protocol.h" |
92bcedf6 | 30 | |
7db90279 | 31 | #define DEFAULT_NUM_LOGIC_CHANNELS 8 |
b1e6eec6 | 32 | #define DEFAULT_LOGIC_PATTERN PATTERN_SIGROK |
c03ed397 | 33 | |
b1e6eec6 | 34 | #define DEFAULT_NUM_ANALOG_CHANNELS 4 |
d9251a2c | 35 | #define DEFAULT_ANALOG_AMPLITUDE 10 |
85b5af06 | 36 | |
77463bd3 | 37 | /* Note: No spaces allowed because of sigrok-cli. */ |
8b2d41ed | 38 | static const char *logic_pattern_str[] = { |
61c39f54 BV |
39 | "sigrok", |
40 | "random", | |
41 | "incremental", | |
77463bd3 SA |
42 | "walking-one", |
43 | "walking-zero", | |
61c39f54 BV |
44 | "all-low", |
45 | "all-high", | |
81d53a29 | 46 | "squid", |
03733430 | 47 | "graycode", |
61c39f54 BV |
48 | }; |
49 | ||
55fb76b3 UH |
50 | static const uint32_t scanopts[] = { |
51 | SR_CONF_NUM_LOGIC_CHANNELS, | |
52 | SR_CONF_NUM_ANALOG_CHANNELS, | |
53 | }; | |
54 | ||
1e4a7cac BV |
55 | static const uint32_t drvopts[] = { |
56 | SR_CONF_DEMO_DEV, | |
57 | SR_CONF_LOGIC_ANALYZER, | |
58 | SR_CONF_OSCILLOSCOPE, | |
59 | }; | |
60 | ||
390795c0 | 61 | static const uint32_t devopts[] = { |
e91bb0a6 | 62 | SR_CONF_CONTINUOUS, |
5827f61b BV |
63 | SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET, |
64 | SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET, | |
fb193945 | 65 | SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET, |
390795c0 | 66 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
7a8a1aba BG |
67 | SR_CONF_AVERAGING | SR_CONF_GET | SR_CONF_SET, |
68 | SR_CONF_AVG_SAMPLES | SR_CONF_GET | SR_CONF_SET, | |
390795c0 BV |
69 | }; |
70 | ||
71 | static const uint32_t devopts_cg_logic[] = { | |
f12d9979 | 72 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
49224c28 BV |
73 | }; |
74 | ||
e2b99f04 SA |
75 | static const uint32_t devopts_cg_analog_group[] = { |
76 | SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET, | |
77 | }; | |
78 | ||
79 | static const uint32_t devopts_cg_analog_channel[] = { | |
f12d9979 BV |
80 | SR_CONF_PATTERN_MODE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
81 | SR_CONF_AMPLITUDE | SR_CONF_GET | SR_CONF_SET, | |
7a1da331 BV |
82 | }; |
83 | ||
d00088ca BV |
84 | static const uint64_t samplerates[] = { |
85 | SR_HZ(1), | |
86 | SR_GHZ(1), | |
87 | SR_HZ(1), | |
4bfbf9fc BV |
88 | }; |
89 | ||
4f840ce9 | 90 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
6239c175 | 91 | { |
33ef7573 | 92 | struct dev_context *devc; |
c07f60e7 | 93 | struct sr_dev_inst *sdi; |
ba7dd8bb | 94 | struct sr_channel *ch; |
49224c28 | 95 | struct sr_channel_group *cg, *acg; |
c07f60e7 | 96 | struct sr_config *src; |
8b2d41ed | 97 | struct analog_gen *ag; |
43376f33 | 98 | GSList *l; |
ba7dd8bb UH |
99 | int num_logic_channels, num_analog_channels, pattern, i; |
100 | char channel_name[16]; | |
067d0716 | 101 | |
3f239f08 UH |
102 | num_logic_channels = DEFAULT_NUM_LOGIC_CHANNELS; |
103 | num_analog_channels = DEFAULT_NUM_ANALOG_CHANNELS; | |
c07f60e7 BV |
104 | for (l = options; l; l = l->next) { |
105 | src = l->data; | |
106 | switch (src->key) { | |
3f239f08 | 107 | case SR_CONF_NUM_LOGIC_CHANNELS: |
ba7dd8bb | 108 | num_logic_channels = g_variant_get_int32(src->data); |
c07f60e7 | 109 | break; |
3f239f08 | 110 | case SR_CONF_NUM_ANALOG_CHANNELS: |
ba7dd8bb | 111 | num_analog_channels = g_variant_get_int32(src->data); |
c07f60e7 BV |
112 | break; |
113 | } | |
114 | } | |
85b5af06 | 115 | |
aac29cc1 | 116 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
45884333 | 117 | sdi->status = SR_ST_INACTIVE; |
4b664cd6 | 118 | sdi->model = g_strdup("Demo device"); |
e15f48c2 | 119 | |
a49a320d | 120 | devc = g_malloc0(sizeof(struct dev_context)); |
8b2d41ed | 121 | devc->cur_samplerate = SR_KHZ(200); |
ba7dd8bb UH |
122 | devc->num_logic_channels = num_logic_channels; |
123 | devc->logic_unitsize = (devc->num_logic_channels + 7) / 8; | |
015f0970 GS |
124 | devc->all_logic_channels_mask = 1UL << 0; |
125 | devc->all_logic_channels_mask <<= devc->num_logic_channels; | |
126 | devc->all_logic_channels_mask--; | |
b1e6eec6 | 127 | devc->logic_pattern = DEFAULT_LOGIC_PATTERN; |
ba7dd8bb | 128 | devc->num_analog_channels = num_analog_channels; |
8b2d41ed | 129 | |
f18e0db3 LPC |
130 | if (num_logic_channels > 0) { |
131 | /* Logic channels, all in one channel group. */ | |
132 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
133 | cg->name = g_strdup("Logic"); | |
134 | for (i = 0; i < num_logic_channels; i++) { | |
135 | sprintf(channel_name, "D%d", i); | |
f1c79a6a | 136 | ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name); |
f18e0db3 LPC |
137 | cg->channels = g_slist_append(cg->channels, ch); |
138 | } | |
139 | sdi->channel_groups = g_slist_append(NULL, cg); | |
87ca93c5 BV |
140 | } |
141 | ||
ba7dd8bb | 142 | /* Analog channels, channel groups and pattern generators. */ |
d91d0b12 | 143 | devc->ch_ag = g_hash_table_new(g_direct_hash, g_direct_equal); |
f18e0db3 LPC |
144 | if (num_analog_channels > 0) { |
145 | pattern = 0; | |
146 | /* An "Analog" channel group with all analog channels in it. */ | |
147 | acg = g_malloc0(sizeof(struct sr_channel_group)); | |
148 | acg->name = g_strdup("Analog"); | |
149 | sdi->channel_groups = g_slist_append(sdi->channel_groups, acg); | |
150 | ||
f18e0db3 LPC |
151 | for (i = 0; i < num_analog_channels; i++) { |
152 | snprintf(channel_name, 16, "A%d", i); | |
153 | ch = sr_channel_new(sdi, i + num_logic_channels, SR_CHANNEL_ANALOG, | |
f1c79a6a | 154 | TRUE, channel_name); |
f18e0db3 LPC |
155 | acg->channels = g_slist_append(acg->channels, ch); |
156 | ||
157 | /* Every analog channel gets its own channel group as well. */ | |
158 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
159 | cg->name = g_strdup(channel_name); | |
160 | cg->channels = g_slist_append(NULL, ch); | |
161 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
162 | ||
163 | /* Every channel gets a generator struct. */ | |
164 | ag = g_malloc(sizeof(struct analog_gen)); | |
01f2adb0 | 165 | ag->ch = ch; |
f18e0db3 | 166 | ag->amplitude = DEFAULT_ANALOG_AMPLITUDE; |
3be044aa | 167 | sr_analog_init(&ag->packet, &ag->encoding, &ag->meaning, &ag->spec, 2); |
4b770103 UH |
168 | ag->packet.meaning->channels = cg->channels; |
169 | ag->packet.meaning->mq = 0; | |
170 | ag->packet.meaning->mqflags = 0; | |
171 | ag->packet.meaning->unit = SR_UNIT_VOLT; | |
f18e0db3 LPC |
172 | ag->packet.data = ag->pattern_data; |
173 | ag->pattern = pattern; | |
174 | ag->avg_val = 0.0f; | |
175 | ag->num_avgs = 0; | |
176 | g_hash_table_insert(devc->ch_ag, ch, ag); | |
177 | ||
178 | if (++pattern == ARRAY_SIZE(analog_pattern_str)) | |
179 | pattern = 0; | |
180 | } | |
33ef7573 | 181 | } |
33ef7573 JH |
182 | |
183 | sdi->priv = devc; | |
184 | ||
43376f33 | 185 | return std_scan_complete(di, g_slist_append(NULL, sdi)); |
6239c175 UH |
186 | } |
187 | ||
3553451f | 188 | static void clear_helper(struct dev_context *devc) |
ed0b7fed | 189 | { |
49224c28 BV |
190 | GHashTableIter iter; |
191 | void *value; | |
ed0b7fed | 192 | |
49224c28 BV |
193 | /* Analog generators. */ |
194 | g_hash_table_iter_init(&iter, devc->ch_ag); | |
195 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
196 | g_free(value); | |
197 | g_hash_table_unref(devc->ch_ag); | |
ed0b7fed BV |
198 | } |
199 | ||
6ab68731 | 200 | static int dev_clear(const struct sr_dev_driver *di) |
6239c175 | 201 | { |
3553451f | 202 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); |
6239c175 UH |
203 | } |
204 | ||
dd7a72ea UH |
205 | static int config_get(uint32_t key, GVariant **data, |
206 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
6239c175 | 207 | { |
c07f60e7 | 208 | struct dev_context *devc; |
ba7dd8bb | 209 | struct sr_channel *ch; |
2388ae86 BV |
210 | struct analog_gen *ag; |
211 | int pattern; | |
6f57fd96 | 212 | |
2388ae86 BV |
213 | if (!sdi) |
214 | return SR_ERR_ARG; | |
8f996b89 | 215 | |
c07f60e7 | 216 | devc = sdi->priv; |
584560f1 | 217 | switch (key) { |
123e1313 | 218 | case SR_CONF_SAMPLERATE: |
a7684294 | 219 | *data = g_variant_new_uint64(devc->cur_samplerate); |
6239c175 | 220 | break; |
2474d87e | 221 | case SR_CONF_LIMIT_SAMPLES: |
a7684294 | 222 | *data = g_variant_new_uint64(devc->limit_samples); |
2474d87e BV |
223 | break; |
224 | case SR_CONF_LIMIT_MSEC: | |
a7684294 | 225 | *data = g_variant_new_uint64(devc->limit_msec); |
2474d87e | 226 | break; |
fb193945 GS |
227 | case SR_CONF_LIMIT_FRAMES: |
228 | *data = g_variant_new_uint64(devc->limit_frames); | |
229 | break; | |
7a8a1aba BG |
230 | case SR_CONF_AVERAGING: |
231 | *data = g_variant_new_boolean(devc->avg); | |
232 | break; | |
233 | case SR_CONF_AVG_SAMPLES: | |
234 | *data = g_variant_new_uint64(devc->avg_samples); | |
235 | break; | |
2474d87e | 236 | case SR_CONF_PATTERN_MODE: |
53b4680f | 237 | if (!cg) |
660e398f | 238 | return SR_ERR_CHANNEL_GROUP; |
49224c28 | 239 | /* Any channel in the group will do. */ |
ba7dd8bb | 240 | ch = cg->channels->data; |
3f239f08 | 241 | if (ch->type == SR_CHANNEL_LOGIC) { |
2388ae86 BV |
242 | pattern = devc->logic_pattern; |
243 | *data = g_variant_new_string(logic_pattern_str[pattern]); | |
3f239f08 | 244 | } else if (ch->type == SR_CHANNEL_ANALOG) { |
49224c28 | 245 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
2388ae86 BV |
246 | pattern = ag->pattern; |
247 | *data = g_variant_new_string(analog_pattern_str[pattern]); | |
248 | } else | |
249 | return SR_ERR_BUG; | |
c07f60e7 | 250 | break; |
dddabe37 BV |
251 | case SR_CONF_AMPLITUDE: |
252 | if (!cg) | |
253 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 | 254 | /* Any channel in the group will do. */ |
dddabe37 BV |
255 | ch = cg->channels->data; |
256 | if (ch->type != SR_CHANNEL_ANALOG) | |
257 | return SR_ERR_ARG; | |
49224c28 | 258 | ag = g_hash_table_lookup(devc->ch_ag, ch); |
dddabe37 BV |
259 | *data = g_variant_new_double(ag->amplitude); |
260 | break; | |
7dfcf010 | 261 | default: |
bd6fbf62 | 262 | return SR_ERR_NA; |
6239c175 UH |
263 | } |
264 | ||
dfb0fa1a | 265 | return SR_OK; |
6239c175 UH |
266 | } |
267 | ||
dd7a72ea UH |
268 | static int config_set(uint32_t key, GVariant *data, |
269 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
6239c175 | 270 | { |
8b2d41ed | 271 | struct dev_context *devc; |
4374219b | 272 | struct analog_gen *ag; |
ba7dd8bb | 273 | struct sr_channel *ch; |
49224c28 | 274 | GSList *l; |
a9010323 | 275 | int logic_pattern, analog_pattern; |
6239c175 | 276 | |
8b2d41ed | 277 | devc = sdi->priv; |
6239c175 | 278 | |
584560f1 | 279 | switch (key) { |
2388ae86 | 280 | case SR_CONF_SAMPLERATE: |
a7684294 | 281 | devc->cur_samplerate = g_variant_get_uint64(data); |
2388ae86 BV |
282 | break; |
283 | case SR_CONF_LIMIT_SAMPLES: | |
a7684294 JH |
284 | devc->limit_msec = 0; |
285 | devc->limit_samples = g_variant_get_uint64(data); | |
2388ae86 BV |
286 | break; |
287 | case SR_CONF_LIMIT_MSEC: | |
a7684294 JH |
288 | devc->limit_msec = g_variant_get_uint64(data); |
289 | devc->limit_samples = 0; | |
2388ae86 | 290 | break; |
fb193945 GS |
291 | case SR_CONF_LIMIT_FRAMES: |
292 | devc->limit_frames = g_variant_get_uint64(data); | |
293 | break; | |
7a8a1aba BG |
294 | case SR_CONF_AVERAGING: |
295 | devc->avg = g_variant_get_boolean(data); | |
296 | sr_dbg("%s averaging", devc->avg ? "Enabling" : "Disabling"); | |
297 | break; | |
298 | case SR_CONF_AVG_SAMPLES: | |
299 | devc->avg_samples = g_variant_get_uint64(data); | |
300 | sr_dbg("Setting averaging rate to %" PRIu64, devc->avg_samples); | |
301 | break; | |
2388ae86 | 302 | case SR_CONF_PATTERN_MODE: |
53b4680f | 303 | if (!cg) |
660e398f | 304 | return SR_ERR_CHANNEL_GROUP; |
697fb6dd UH |
305 | logic_pattern = std_str_idx(data, ARRAY_AND_SIZE(logic_pattern_str)); |
306 | analog_pattern = std_str_idx(data, ARRAY_AND_SIZE(analog_pattern_str)); | |
307 | if (logic_pattern < 0 && analog_pattern < 0) | |
49224c28 BV |
308 | return SR_ERR_ARG; |
309 | for (l = cg->channels; l; l = l->next) { | |
310 | ch = l->data; | |
311 | if (ch->type == SR_CHANNEL_LOGIC) { | |
312 | if (logic_pattern == -1) | |
313 | return SR_ERR_ARG; | |
314 | sr_dbg("Setting logic pattern to %s", | |
315 | logic_pattern_str[logic_pattern]); | |
316 | devc->logic_pattern = logic_pattern; | |
317 | /* Might as well do this now, these are static. */ | |
318 | if (logic_pattern == PATTERN_ALL_LOW) | |
319 | memset(devc->logic_data, 0x00, LOGIC_BUFSIZE); | |
320 | else if (logic_pattern == PATTERN_ALL_HIGH) | |
321 | memset(devc->logic_data, 0xff, LOGIC_BUFSIZE); | |
322 | } else if (ch->type == SR_CHANNEL_ANALOG) { | |
323 | if (analog_pattern == -1) | |
324 | return SR_ERR_ARG; | |
325 | sr_dbg("Setting analog pattern for channel %s to %s", | |
326 | ch->name, analog_pattern_str[analog_pattern]); | |
327 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
328 | ag->pattern = analog_pattern; | |
329 | } else | |
330 | return SR_ERR_BUG; | |
331 | } | |
2388ae86 | 332 | break; |
dddabe37 BV |
333 | case SR_CONF_AMPLITUDE: |
334 | if (!cg) | |
335 | return SR_ERR_CHANNEL_GROUP; | |
49224c28 BV |
336 | for (l = cg->channels; l; l = l->next) { |
337 | ch = l->data; | |
338 | if (ch->type != SR_CHANNEL_ANALOG) | |
339 | return SR_ERR_ARG; | |
340 | ag = g_hash_table_lookup(devc->ch_ag, ch); | |
341 | ag->amplitude = g_variant_get_double(data); | |
342 | } | |
dddabe37 | 343 | break; |
2388ae86 | 344 | default: |
a9010323 | 345 | return SR_ERR_NA; |
6239c175 UH |
346 | } |
347 | ||
a9010323 | 348 | return SR_OK; |
6239c175 UH |
349 | } |
350 | ||
dd7a72ea UH |
351 | static int config_list(uint32_t key, GVariant **data, |
352 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
a1c743fc | 353 | { |
ba7dd8bb | 354 | struct sr_channel *ch; |
a1c743fc | 355 | |
53b4680f | 356 | if (!cg) { |
7a1da331 | 357 | switch (key) { |
e66d1892 | 358 | case SR_CONF_SCAN_OPTIONS: |
7a1da331 | 359 | case SR_CONF_DEVICE_OPTIONS: |
e66d1892 | 360 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); |
7a1da331 | 361 | case SR_CONF_SAMPLERATE: |
53012da6 | 362 | *data = std_gvar_samplerates_steps(ARRAY_AND_SIZE(samplerates)); |
7a1da331 BV |
363 | break; |
364 | default: | |
365 | return SR_ERR_NA; | |
366 | } | |
367 | } else { | |
ba7dd8bb | 368 | ch = cg->channels->data; |
7a1da331 BV |
369 | switch (key) { |
370 | case SR_CONF_DEVICE_OPTIONS: | |
49224c28 | 371 | if (ch->type == SR_CHANNEL_LOGIC) |
53012da6 | 372 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_logic)); |
e2b99f04 SA |
373 | else if (ch->type == SR_CHANNEL_ANALOG) { |
374 | if (strcmp(cg->name, "Analog") == 0) | |
53012da6 | 375 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog_group)); |
e2b99f04 | 376 | else |
53012da6 | 377 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog_channel)); |
e2b99f04 | 378 | } |
49224c28 BV |
379 | else |
380 | return SR_ERR_BUG; | |
7a1da331 BV |
381 | break; |
382 | case SR_CONF_PATTERN_MODE: | |
e2b99f04 SA |
383 | /* The analog group (with all 4 channels) shall not have a pattern property. */ |
384 | if (strcmp(cg->name, "Analog") == 0) | |
385 | return SR_ERR_NA; | |
386 | ||
3f239f08 | 387 | if (ch->type == SR_CHANNEL_LOGIC) |
53012da6 | 388 | *data = g_variant_new_strv(ARRAY_AND_SIZE(logic_pattern_str)); |
3f239f08 | 389 | else if (ch->type == SR_CHANNEL_ANALOG) |
53012da6 | 390 | *data = g_variant_new_strv(ARRAY_AND_SIZE(analog_pattern_str)); |
2388ae86 BV |
391 | else |
392 | return SR_ERR_BUG; | |
7a1da331 BV |
393 | break; |
394 | default: | |
395 | return SR_ERR_NA; | |
396 | } | |
a1c743fc BV |
397 | } |
398 | ||
399 | return SR_OK; | |
400 | } | |
401 | ||
695dc859 | 402 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
6239c175 | 403 | { |
61c39f54 | 404 | struct dev_context *devc; |
1b7b72d4 GS |
405 | GSList *l; |
406 | struct sr_channel *ch; | |
4a465510 GS |
407 | int bitpos; |
408 | uint8_t mask; | |
49224c28 BV |
409 | GHashTableIter iter; |
410 | void *value; | |
85b5af06 | 411 | |
61c39f54 | 412 | devc = sdi->priv; |
a49a320d | 413 | devc->sent_samples = 0; |
767ca135 | 414 | devc->sent_frame_samples = 0; |
85b5af06 | 415 | |
4a465510 GS |
416 | /* |
417 | * Determine the numbers of logic and analog channels that are | |
418 | * involved in the acquisition. Determine an offset and a mask to | |
419 | * remove excess logic data content before datafeed submission. | |
420 | */ | |
1b7b72d4 GS |
421 | devc->enabled_logic_channels = 0; |
422 | devc->enabled_analog_channels = 0; | |
423 | for (l = sdi->channels; l; l = l->next) { | |
424 | ch = l->data; | |
425 | if (!ch->enabled) | |
426 | continue; | |
427 | if (ch->type == SR_CHANNEL_ANALOG) { | |
428 | devc->enabled_analog_channels++; | |
429 | continue; | |
430 | } | |
4a465510 | 431 | if (ch->type != SR_CHANNEL_LOGIC) |
1b7b72d4 | 432 | continue; |
4a465510 GS |
433 | /* |
434 | * TODO: Need we create a channel map here, such that the | |
435 | * session datafeed packets will have a dense representation | |
436 | * of the enabled channels' data? For example store channels | |
437 | * D3 and D5 in bit positions 0 and 1 respectively, when all | |
438 | * other channels are disabled? The current implementation | |
439 | * generates a sparse layout, might provide data for logic | |
440 | * channels that are disabled while it might suppress data | |
441 | * from enabled channels at the same time. | |
442 | */ | |
443 | devc->enabled_logic_channels++; | |
1b7b72d4 | 444 | } |
4a465510 GS |
445 | devc->first_partial_logic_index = devc->enabled_logic_channels / 8; |
446 | bitpos = devc->enabled_logic_channels % 8; | |
447 | mask = (1 << bitpos) - 1; | |
448 | devc->first_partial_logic_mask = mask; | |
91057d2f UH |
449 | sr_dbg("num logic %zu, partial off %zu, mask 0x%02x.", |
450 | devc->enabled_logic_channels, | |
4a465510 GS |
451 | devc->first_partial_logic_index, |
452 | devc->first_partial_logic_mask); | |
453 | ||
454 | /* | |
455 | * Have the waveform for analog patterns pre-generated. It's | |
456 | * supposed to be periodic, so the generator just needs to | |
457 | * access the prepared sample data (DDS style). | |
458 | */ | |
49224c28 BV |
459 | g_hash_table_iter_init(&iter, devc->ch_ag); |
460 | while (g_hash_table_iter_next(&iter, NULL, &value)) | |
ba508e22 | 461 | demo_generate_analog_pattern(value, devc->cur_samplerate); |
4374219b | 462 | |
98c01fe1 | 463 | sr_session_source_add(sdi->session, -1, 0, 100, |
ba508e22 | 464 | demo_prepare_data, (struct sr_dev_inst *)sdi); |
85b5af06 | 465 | |
bee2b016 | 466 | std_session_send_df_header(sdi); |
f366e86c | 467 | |
fb193945 | 468 | if (devc->limit_frames > 0) |
f55bea76 SA |
469 | std_session_send_frame_begin(sdi); |
470 | ||
3b203673 | 471 | /* We use this timestamp to decide how many more samples to send. */ |
a49a320d DE |
472 | devc->start_us = g_get_monotonic_time(); |
473 | devc->spent_us = 0; | |
471ac344 | 474 | devc->step = 0; |
3b203673 | 475 | |
e46b8fb1 | 476 | return SR_OK; |
6239c175 UH |
477 | } |
478 | ||
695dc859 | 479 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
6239c175 | 480 | { |
fb193945 GS |
481 | struct dev_context *devc; |
482 | ||
027bf077 | 483 | sr_session_source_remove(sdi->session, -1); |
f55bea76 | 484 | |
fb193945 GS |
485 | devc = sdi->priv; |
486 | if (devc->limit_frames > 0) | |
f55bea76 SA |
487 | std_session_send_frame_end(sdi); |
488 | ||
bee2b016 | 489 | std_session_send_df_end(sdi); |
7fd3e859 | 490 | |
3010f21c | 491 | return SR_OK; |
6239c175 UH |
492 | } |
493 | ||
dd5c48a6 | 494 | static struct sr_dev_driver demo_driver_info = { |
e519ba86 UH |
495 | .name = "demo", |
496 | .longname = "Demo driver and pattern generator", | |
497 | .api_version = 1, | |
c2fdcc25 | 498 | .init = std_init, |
700d6b64 | 499 | .cleanup = std_cleanup, |
6078d2c9 | 500 | .scan = scan, |
c01bf34c | 501 | .dev_list = std_dev_list, |
6ab68731 | 502 | .dev_clear = dev_clear, |
035a1078 BV |
503 | .config_get = config_get, |
504 | .config_set = config_set, | |
a1c743fc | 505 | .config_list = config_list, |
4d67b9d9 UH |
506 | .dev_open = std_dummy_dev_open, |
507 | .dev_close = std_dummy_dev_close, | |
6078d2c9 UH |
508 | .dev_acquisition_start = dev_acquisition_start, |
509 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 510 | .context = NULL, |
6239c175 | 511 | }; |
dd5c48a6 | 512 | SR_REGISTER_DEV_DRIVER(demo_driver_info); |