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06a3e78a DJ |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 poljar (Damir Jelić) <poljarinho@gmail.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
6ec6c43b | 20 | #include <config.h> |
650847e7 UH |
21 | #include <math.h> |
22 | #include <stdlib.h> | |
5a1afc09 | 23 | #include "scpi.h" |
06a3e78a DJ |
24 | #include "protocol.h" |
25 | ||
e06875b2 GS |
26 | SR_PRIV void hmo_queue_logic_data(struct dev_context *devc, |
27 | size_t group, GByteArray *pod_data); | |
28 | SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi, | |
29 | struct dev_context *devc); | |
30 | SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc); | |
31 | ||
13f2b9d7 | 32 | static const char *hameg_scpi_dialect[] = { |
401b83a1 | 33 | [SCPI_CMD_GET_DIG_DATA] = ":FORM UINT,8;:POD%d:DATA?", |
13f2b9d7 | 34 | [SCPI_CMD_GET_TIMEBASE] = ":TIM:SCAL?", |
965b463d | 35 | [SCPI_CMD_SET_TIMEBASE] = ":TIM:SCAL %s", |
13f2b9d7 DJ |
36 | [SCPI_CMD_GET_COUPLING] = ":CHAN%d:COUP?", |
37 | [SCPI_CMD_SET_COUPLING] = ":CHAN%d:COUP %s", | |
14a2f74d DJ |
38 | [SCPI_CMD_GET_SAMPLE_RATE] = ":ACQ:SRAT?", |
39 | [SCPI_CMD_GET_SAMPLE_RATE_LIVE] = ":%s:DATA:POINTS?", | |
65a6794e GS |
40 | [SCPI_CMD_GET_ANALOG_DATA] = ":FORM:BORD %s;" \ |
41 | ":FORM REAL,32;:CHAN%d:DATA?", | |
13f2b9d7 | 42 | [SCPI_CMD_GET_VERTICAL_DIV] = ":CHAN%d:SCAL?", |
965b463d | 43 | [SCPI_CMD_SET_VERTICAL_DIV] = ":CHAN%d:SCAL %s", |
13f2b9d7 DJ |
44 | [SCPI_CMD_GET_DIG_POD_STATE] = ":POD%d:STAT?", |
45 | [SCPI_CMD_SET_DIG_POD_STATE] = ":POD%d:STAT %d", | |
46 | [SCPI_CMD_GET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP?", | |
47 | [SCPI_CMD_SET_TRIGGER_SLOPE] = ":TRIG:A:EDGE:SLOP %s", | |
48 | [SCPI_CMD_GET_TRIGGER_SOURCE] = ":TRIG:A:SOUR?", | |
49 | [SCPI_CMD_SET_TRIGGER_SOURCE] = ":TRIG:A:SOUR %s", | |
50 | [SCPI_CMD_GET_DIG_CHAN_STATE] = ":LOG%d:STAT?", | |
51 | [SCPI_CMD_SET_DIG_CHAN_STATE] = ":LOG%d:STAT %d", | |
52 | [SCPI_CMD_GET_VERTICAL_OFFSET] = ":CHAN%d:POS?", | |
53 | [SCPI_CMD_GET_HORIZ_TRIGGERPOS] = ":TIM:POS?", | |
422a1c0d | 54 | [SCPI_CMD_SET_HORIZ_TRIGGERPOS] = ":TIM:POS %s", |
13f2b9d7 DJ |
55 | [SCPI_CMD_GET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT?", |
56 | [SCPI_CMD_SET_ANALOG_CHAN_STATE] = ":CHAN%d:STAT %d", | |
448e81b1 | 57 | [SCPI_CMD_GET_PROBE_UNIT] = ":PROB%d:SET:ATT:UNIT?", |
13f2b9d7 DJ |
58 | }; |
59 | ||
f254bc4b | 60 | static const uint32_t hmo_devopts[] = { |
13f2b9d7 | 61 | SR_CONF_OSCILLOSCOPE, |
a1b61e6e | 62 | SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET, |
5827f61b BV |
63 | SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
64 | SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
bf622e6d | 65 | SR_CONF_NUM_HDIV | SR_CONF_GET, |
5827f61b BV |
66 | SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
67 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, | |
68 | SR_CONF_SAMPLERATE | SR_CONF_GET, | |
13f2b9d7 DJ |
69 | }; |
70 | ||
f254bc4b | 71 | static const uint32_t hmo_analog_devopts[] = { |
5827f61b BV |
72 | SR_CONF_NUM_VDIV | SR_CONF_GET, |
73 | SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
74 | SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
13f2b9d7 DJ |
75 | }; |
76 | ||
77 | static const char *hmo_coupling_options[] = { | |
b05ab7d2 SB |
78 | "AC", // AC with 50 Ohm termination (152x, 202x, 30xx, 1202) |
79 | "ACL", // AC with 1 MOhm termination | |
80 | "DC", // DC with 50 Ohm termination | |
81 | "DCL", // DC with 1 MOhm termination | |
13f2b9d7 DJ |
82 | "GND", |
83 | NULL, | |
84 | }; | |
85 | ||
86 | static const char *scope_trigger_slopes[] = { | |
87 | "POS", | |
88 | "NEG", | |
356f64f8 | 89 | "EITH", |
13f2b9d7 DJ |
90 | NULL, |
91 | }; | |
92 | ||
93 | static const char *hmo_compact2_trigger_sources[] = { | |
94 | "CH1", | |
95 | "CH2", | |
96 | "LINE", | |
97 | "EXT", | |
510aa828 SB |
98 | "PATT", |
99 | "BUS1", | |
100 | "BUS2", | |
13f2b9d7 DJ |
101 | "D0", |
102 | "D1", | |
103 | "D2", | |
104 | "D3", | |
105 | "D4", | |
106 | "D5", | |
107 | "D6", | |
108 | "D7", | |
109 | NULL, | |
110 | }; | |
111 | ||
112 | static const char *hmo_compact4_trigger_sources[] = { | |
113 | "CH1", | |
114 | "CH2", | |
115 | "CH3", | |
116 | "CH4", | |
117 | "LINE", | |
118 | "EXT", | |
510aa828 SB |
119 | "PATT", |
120 | "BUS1", | |
121 | "BUS2", | |
13f2b9d7 DJ |
122 | "D0", |
123 | "D1", | |
124 | "D2", | |
125 | "D3", | |
126 | "D4", | |
127 | "D5", | |
128 | "D6", | |
129 | "D7", | |
130 | NULL, | |
131 | }; | |
132 | ||
74413faf GS |
133 | static const char *hmo_compact4_dig16_trigger_sources[] = { |
134 | "CH1", | |
135 | "CH2", | |
136 | "CH3", | |
137 | "CH4", | |
138 | "LINE", | |
139 | "EXT", | |
140 | "PATT", | |
141 | "BUS1", | |
142 | "BUS2", | |
143 | "D0", | |
144 | "D1", | |
145 | "D2", | |
146 | "D3", | |
147 | "D4", | |
148 | "D5", | |
149 | "D6", | |
150 | "D7", | |
151 | "D8", | |
152 | "D9", | |
153 | "D10", | |
154 | "D11", | |
155 | "D12", | |
156 | "D13", | |
157 | "D14", | |
158 | "D15", | |
159 | NULL, | |
160 | }; | |
161 | ||
13f2b9d7 DJ |
162 | static const uint64_t hmo_timebases[][2] = { |
163 | /* nanoseconds */ | |
164 | { 2, 1000000000 }, | |
165 | { 5, 1000000000 }, | |
166 | { 10, 1000000000 }, | |
167 | { 20, 1000000000 }, | |
168 | { 50, 1000000000 }, | |
169 | { 100, 1000000000 }, | |
170 | { 200, 1000000000 }, | |
171 | { 500, 1000000000 }, | |
172 | /* microseconds */ | |
173 | { 1, 1000000 }, | |
174 | { 2, 1000000 }, | |
175 | { 5, 1000000 }, | |
176 | { 10, 1000000 }, | |
177 | { 20, 1000000 }, | |
178 | { 50, 1000000 }, | |
179 | { 100, 1000000 }, | |
180 | { 200, 1000000 }, | |
181 | { 500, 1000000 }, | |
182 | /* milliseconds */ | |
183 | { 1, 1000 }, | |
184 | { 2, 1000 }, | |
185 | { 5, 1000 }, | |
186 | { 10, 1000 }, | |
187 | { 20, 1000 }, | |
188 | { 50, 1000 }, | |
189 | { 100, 1000 }, | |
190 | { 200, 1000 }, | |
191 | { 500, 1000 }, | |
192 | /* seconds */ | |
193 | { 1, 1 }, | |
194 | { 2, 1 }, | |
195 | { 5, 1 }, | |
196 | { 10, 1 }, | |
197 | { 20, 1 }, | |
198 | { 50, 1 }, | |
199 | }; | |
200 | ||
201 | static const uint64_t hmo_vdivs[][2] = { | |
202 | /* millivolts */ | |
203 | { 1, 1000 }, | |
204 | { 2, 1000 }, | |
205 | { 5, 1000 }, | |
206 | { 10, 1000 }, | |
207 | { 20, 1000 }, | |
208 | { 50, 1000 }, | |
209 | { 100, 1000 }, | |
210 | { 200, 1000 }, | |
211 | { 500, 1000 }, | |
212 | /* volts */ | |
213 | { 1, 1 }, | |
214 | { 2, 1 }, | |
215 | { 5, 1 }, | |
216 | { 10, 1 }, | |
fe227d17 SA |
217 | { 20, 1 }, |
218 | { 50, 1 }, | |
13f2b9d7 DJ |
219 | }; |
220 | ||
ba7dd8bb | 221 | static const char *scope_analog_channel_names[] = { |
13f2b9d7 DJ |
222 | "CH1", |
223 | "CH2", | |
224 | "CH3", | |
225 | "CH4", | |
226 | }; | |
227 | ||
ba7dd8bb | 228 | static const char *scope_digital_channel_names[] = { |
13f2b9d7 DJ |
229 | "D0", |
230 | "D1", | |
231 | "D2", | |
232 | "D3", | |
233 | "D4", | |
234 | "D5", | |
235 | "D6", | |
236 | "D7", | |
237 | "D8", | |
238 | "D9", | |
239 | "D10", | |
240 | "D11", | |
241 | "D12", | |
242 | "D13", | |
243 | "D14", | |
244 | "D15", | |
245 | }; | |
246 | ||
329733d9 | 247 | static const struct scope_config scope_models[] = { |
13f2b9d7 | 248 | { |
e786b194 | 249 | /* HMO2522/3032/3042/3052 support 16 digital channels but they're not supported yet. */ |
da1726cc | 250 | .name = {"HMO1002", "HMO722", "HMO1022", "HMO1522", "HMO2022", "HMO2522", |
e786b194 | 251 | "HMO3032", "HMO3042", "HMO3052", NULL}, |
13f2b9d7 DJ |
252 | .analog_channels = 2, |
253 | .digital_channels = 8, | |
254 | .digital_pods = 1, | |
255 | ||
ba7dd8bb UH |
256 | .analog_names = &scope_analog_channel_names, |
257 | .digital_names = &scope_digital_channel_names, | |
13f2b9d7 | 258 | |
f254bc4b BV |
259 | .devopts = &hmo_devopts, |
260 | .num_devopts = ARRAY_SIZE(hmo_devopts), | |
13f2b9d7 | 261 | |
f254bc4b BV |
262 | .analog_devopts = &hmo_analog_devopts, |
263 | .num_analog_devopts = ARRAY_SIZE(hmo_analog_devopts), | |
13f2b9d7 DJ |
264 | |
265 | .coupling_options = &hmo_coupling_options, | |
266 | .trigger_sources = &hmo_compact2_trigger_sources, | |
267 | .trigger_slopes = &scope_trigger_slopes, | |
268 | ||
269 | .timebases = &hmo_timebases, | |
270 | .num_timebases = ARRAY_SIZE(hmo_timebases), | |
271 | ||
272 | .vdivs = &hmo_vdivs, | |
273 | .num_vdivs = ARRAY_SIZE(hmo_vdivs), | |
274 | ||
275 | .num_xdivs = 12, | |
276 | .num_ydivs = 8, | |
277 | ||
278 | .scpi_dialect = &hameg_scpi_dialect, | |
279 | }, | |
280 | { | |
74413faf | 281 | .name = {"HMO724", "HMO1024", "HMO1524", "HMO2024", NULL}, |
13f2b9d7 DJ |
282 | .analog_channels = 4, |
283 | .digital_channels = 8, | |
284 | .digital_pods = 1, | |
285 | ||
ba7dd8bb UH |
286 | .analog_names = &scope_analog_channel_names, |
287 | .digital_names = &scope_digital_channel_names, | |
13f2b9d7 | 288 | |
f254bc4b BV |
289 | .devopts = &hmo_devopts, |
290 | .num_devopts = ARRAY_SIZE(hmo_devopts), | |
13f2b9d7 | 291 | |
f254bc4b BV |
292 | .analog_devopts = &hmo_analog_devopts, |
293 | .num_analog_devopts = ARRAY_SIZE(hmo_analog_devopts), | |
13f2b9d7 DJ |
294 | |
295 | .coupling_options = &hmo_coupling_options, | |
296 | .trigger_sources = &hmo_compact4_trigger_sources, | |
297 | .trigger_slopes = &scope_trigger_slopes, | |
298 | ||
299 | .timebases = &hmo_timebases, | |
300 | .num_timebases = ARRAY_SIZE(hmo_timebases), | |
301 | ||
302 | .vdivs = &hmo_vdivs, | |
303 | .num_vdivs = ARRAY_SIZE(hmo_vdivs), | |
304 | ||
305 | .num_xdivs = 12, | |
306 | .num_ydivs = 8, | |
307 | ||
74413faf GS |
308 | .scpi_dialect = &hameg_scpi_dialect, |
309 | }, | |
310 | { | |
311 | .name = {"HMO2524", "HMO3034", "HMO3044", "HMO3054", NULL}, | |
312 | .analog_channels = 4, | |
313 | .digital_channels = 16, | |
314 | .digital_pods = 2, | |
315 | ||
316 | .analog_names = &scope_analog_channel_names, | |
317 | .digital_names = &scope_digital_channel_names, | |
318 | ||
319 | .devopts = &hmo_devopts, | |
320 | .num_devopts = ARRAY_SIZE(hmo_devopts), | |
321 | ||
322 | .analog_devopts = &hmo_analog_devopts, | |
323 | .num_analog_devopts = ARRAY_SIZE(hmo_analog_devopts), | |
324 | ||
325 | .coupling_options = &hmo_coupling_options, | |
326 | .trigger_sources = &hmo_compact4_dig16_trigger_sources, | |
327 | .trigger_slopes = &scope_trigger_slopes, | |
328 | ||
329 | .timebases = &hmo_timebases, | |
330 | .num_timebases = ARRAY_SIZE(hmo_timebases), | |
331 | ||
332 | .vdivs = &hmo_vdivs, | |
333 | .num_vdivs = ARRAY_SIZE(hmo_vdivs), | |
334 | ||
335 | .num_xdivs = 12, | |
336 | .num_ydivs = 8, | |
337 | ||
13f2b9d7 DJ |
338 | .scpi_dialect = &hameg_scpi_dialect, |
339 | }, | |
340 | }; | |
341 | ||
329733d9 | 342 | static void scope_state_dump(const struct scope_config *config, |
13f2b9d7 DJ |
343 | struct scope_state *state) |
344 | { | |
345 | unsigned int i; | |
8de2dc3b | 346 | char *tmp; |
13f2b9d7 | 347 | |
0a1f7b09 | 348 | for (i = 0; i < config->analog_channels; i++) { |
8de2dc3b DJ |
349 | tmp = sr_voltage_string((*config->vdivs)[state->analog_channels[i].vdiv][0], |
350 | (*config->vdivs)[state->analog_channels[i].vdiv][1]); | |
d9251a2c | 351 | sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)", |
8de2dc3b | 352 | i + 1, state->analog_channels[i].state ? "On" : "Off", |
13f2b9d7 | 353 | (*config->coupling_options)[state->analog_channels[i].coupling], |
8de2dc3b | 354 | tmp, state->analog_channels[i].vertical_offset); |
13f2b9d7 DJ |
355 | } |
356 | ||
0a1f7b09 | 357 | for (i = 0; i < config->digital_channels; i++) { |
13f2b9d7 DJ |
358 | sr_info("State of digital channel %d -> %s", i, |
359 | state->digital_channels[i] ? "On" : "Off"); | |
360 | } | |
361 | ||
0a1f7b09 | 362 | for (i = 0; i < config->digital_pods; i++) { |
13f2b9d7 DJ |
363 | sr_info("State of digital POD %d -> %s", i, |
364 | state->digital_pods[i] ? "On" : "Off"); | |
365 | } | |
366 | ||
d8b65ef6 SB |
367 | /* FIXME: this is wrong for TB > 1 second */ |
368 | tmp = sr_period_string((*config->timebases)[state->timebase][1] / | |
369 | (*config->timebases)[state->timebase][0]); | |
8de2dc3b DJ |
370 | sr_info("Current timebase: %s", tmp); |
371 | g_free(tmp); | |
372 | ||
14a2f74d DJ |
373 | tmp = sr_samplerate_string(state->sample_rate); |
374 | sr_info("Current samplerate: %s", tmp); | |
375 | g_free(tmp); | |
376 | ||
422a1c0d | 377 | sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)", |
13f2b9d7 DJ |
378 | (*config->trigger_sources)[state->trigger_source], |
379 | (*config->trigger_slopes)[state->trigger_slope], | |
380 | state->horiz_triggerpos); | |
381 | } | |
382 | ||
23f43dff | 383 | static int scope_state_get_array_option(struct sr_scpi_dev_inst *scpi, |
89280b1a | 384 | const char *command, const char *(*array)[], int *result) |
13f2b9d7 DJ |
385 | { |
386 | char *tmp; | |
387 | unsigned int i; | |
388 | ||
23f43dff | 389 | if (sr_scpi_get_string(scpi, command, &tmp) != SR_OK) { |
89280b1a | 390 | g_free(tmp); |
13f2b9d7 DJ |
391 | return SR_ERR; |
392 | } | |
393 | ||
0a1f7b09 | 394 | for (i = 0; (*array)[i]; i++) { |
13f2b9d7 DJ |
395 | if (!g_strcmp0(tmp, (*array)[i])) { |
396 | *result = i; | |
397 | g_free(tmp); | |
398 | tmp = NULL; | |
399 | break; | |
400 | } | |
401 | } | |
402 | ||
403 | if (tmp) { | |
404 | g_free(tmp); | |
405 | return SR_ERR; | |
406 | } | |
407 | ||
408 | return SR_OK; | |
409 | } | |
410 | ||
8fff7519 | 411 | /** |
a53acd7d SB |
412 | * This function takes a value of the form "2.000E-03" and returns the index |
413 | * of an array where a matching pair was found. | |
8fff7519 SA |
414 | * |
415 | * @param value The string to be parsed. | |
416 | * @param array The array of s/f pairs. | |
417 | * @param array_len The number of pairs in the array. | |
418 | * @param result The index at which a matching pair was found. | |
419 | * | |
420 | * @return SR_ERR on any parsing error, SR_OK otherwise. | |
421 | */ | |
422 | static int array_float_get(gchar *value, const uint64_t array[][2], | |
650847e7 | 423 | int array_len, unsigned int *result) |
8fff7519 | 424 | { |
a53acd7d SB |
425 | struct sr_rational rval; |
426 | struct sr_rational aval; | |
8cccbac8 | 427 | |
a53acd7d | 428 | if (sr_parse_rational(value, &rval) != SR_OK) |
8fff7519 SA |
429 | return SR_ERR; |
430 | ||
a53acd7d SB |
431 | for (int i = 0; i < array_len; i++) { |
432 | sr_rational_set(&aval, array[i][0], array[i][1]); | |
433 | if (sr_rational_eq(&rval, &aval)) { | |
8fff7519 SA |
434 | *result = i; |
435 | return SR_OK; | |
436 | } | |
437 | } | |
438 | ||
439 | return SR_ERR; | |
440 | } | |
441 | ||
23f43dff | 442 | static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi, |
329733d9 | 443 | const struct scope_config *config, |
13f2b9d7 DJ |
444 | struct scope_state *state) |
445 | { | |
8de2dc3b | 446 | unsigned int i, j; |
13f2b9d7 | 447 | char command[MAX_COMMAND_SIZE]; |
8fff7519 | 448 | char *tmp_str; |
13f2b9d7 | 449 | |
0a1f7b09 | 450 | for (i = 0; i < config->analog_channels; i++) { |
13f2b9d7 DJ |
451 | g_snprintf(command, sizeof(command), |
452 | (*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE], | |
453 | i + 1); | |
454 | ||
23f43dff | 455 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
456 | &state->analog_channels[i].state) != SR_OK) |
457 | return SR_ERR; | |
458 | ||
459 | g_snprintf(command, sizeof(command), | |
460 | (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV], | |
461 | i + 1); | |
462 | ||
8fff7519 | 463 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) |
8de2dc3b | 464 | return SR_ERR; |
8fff7519 SA |
465 | |
466 | if (array_float_get(tmp_str, hmo_vdivs, ARRAY_SIZE(hmo_vdivs), | |
467 | &j) != SR_OK) { | |
468 | g_free(tmp_str); | |
b4e31d2a | 469 | sr_err("Could not determine array index for vertical div scale."); |
13f2b9d7 | 470 | return SR_ERR; |
b4e31d2a | 471 | } |
13f2b9d7 | 472 | |
8fff7519 SA |
473 | g_free(tmp_str); |
474 | state->analog_channels[i].vdiv = j; | |
475 | ||
13f2b9d7 DJ |
476 | g_snprintf(command, sizeof(command), |
477 | (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET], | |
478 | i + 1); | |
479 | ||
23f43dff | 480 | if (sr_scpi_get_float(scpi, command, |
13f2b9d7 DJ |
481 | &state->analog_channels[i].vertical_offset) != SR_OK) |
482 | return SR_ERR; | |
483 | ||
484 | g_snprintf(command, sizeof(command), | |
485 | (*config->scpi_dialect)[SCPI_CMD_GET_COUPLING], | |
486 | i + 1); | |
487 | ||
23f43dff | 488 | if (scope_state_get_array_option(scpi, command, config->coupling_options, |
13f2b9d7 DJ |
489 | &state->analog_channels[i].coupling) != SR_OK) |
490 | return SR_ERR; | |
448e81b1 SB |
491 | |
492 | g_snprintf(command, sizeof(command), | |
493 | (*config->scpi_dialect)[SCPI_CMD_GET_PROBE_UNIT], | |
494 | i + 1); | |
495 | ||
496 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) | |
497 | return SR_ERR; | |
498 | ||
499 | if (tmp_str[0] == 'A') | |
500 | state->analog_channels[i].probe_unit = 'A'; | |
501 | else | |
502 | state->analog_channels[i].probe_unit = 'V'; | |
503 | g_free(tmp_str); | |
13f2b9d7 DJ |
504 | } |
505 | ||
506 | return SR_OK; | |
507 | } | |
508 | ||
23f43dff | 509 | static int digital_channel_state_get(struct sr_scpi_dev_inst *scpi, |
329733d9 | 510 | const struct scope_config *config, |
13f2b9d7 DJ |
511 | struct scope_state *state) |
512 | { | |
513 | unsigned int i; | |
514 | char command[MAX_COMMAND_SIZE]; | |
515 | ||
0a1f7b09 | 516 | for (i = 0; i < config->digital_channels; i++) { |
13f2b9d7 DJ |
517 | g_snprintf(command, sizeof(command), |
518 | (*config->scpi_dialect)[SCPI_CMD_GET_DIG_CHAN_STATE], | |
519 | i); | |
520 | ||
23f43dff | 521 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
522 | &state->digital_channels[i]) != SR_OK) |
523 | return SR_ERR; | |
524 | } | |
525 | ||
0a1f7b09 | 526 | for (i = 0; i < config->digital_pods; i++) { |
13f2b9d7 DJ |
527 | g_snprintf(command, sizeof(command), |
528 | (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_STATE], | |
529 | i + 1); | |
530 | ||
23f43dff | 531 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
532 | &state->digital_pods[i]) != SR_OK) |
533 | return SR_ERR; | |
534 | } | |
535 | ||
536 | return SR_OK; | |
537 | } | |
538 | ||
14a2f74d DJ |
539 | SR_PRIV int hmo_update_sample_rate(const struct sr_dev_inst *sdi) |
540 | { | |
541 | struct dev_context *devc; | |
542 | struct scope_state *state; | |
329733d9 | 543 | const struct scope_config *config; |
14a2f74d DJ |
544 | |
545 | int tmp; | |
546 | unsigned int i; | |
547 | float tmp_float; | |
548 | gboolean channel_found; | |
549 | char tmp_str[MAX_COMMAND_SIZE]; | |
550 | char chan_name[20]; | |
551 | ||
552 | devc = sdi->priv; | |
553 | config = devc->model_config; | |
554 | state = devc->model_state; | |
555 | channel_found = FALSE; | |
556 | ||
0a1f7b09 | 557 | for (i = 0; i < config->analog_channels; i++) { |
14a2f74d DJ |
558 | if (state->analog_channels[i].state) { |
559 | g_snprintf(chan_name, sizeof(chan_name), "CHAN%d", i + 1); | |
560 | g_snprintf(tmp_str, sizeof(tmp_str), | |
561 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE], | |
562 | chan_name); | |
563 | channel_found = TRUE; | |
564 | break; | |
565 | } | |
566 | } | |
567 | ||
568 | if (!channel_found) { | |
569 | for (i = 0; i < config->digital_pods; i++) { | |
570 | if (state->digital_pods[i]) { | |
571 | g_snprintf(chan_name, sizeof(chan_name), "POD%d", i); | |
572 | g_snprintf(tmp_str, sizeof(tmp_str), | |
573 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE], | |
574 | chan_name); | |
575 | channel_found = TRUE; | |
576 | break; | |
577 | } | |
578 | } | |
579 | } | |
580 | ||
581 | /* No channel is active, ask the instrument for the sample rate | |
582 | * in single shot mode */ | |
583 | if (!channel_found) { | |
c06c24d2 DJ |
584 | if (sr_scpi_get_float(sdi->conn, |
585 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE], | |
586 | &tmp_float) != SR_OK) | |
14a2f74d | 587 | return SR_ERR; |
c06c24d2 | 588 | |
14a2f74d DJ |
589 | state->sample_rate = tmp_float; |
590 | } else { | |
591 | if (sr_scpi_get_int(sdi->conn, tmp_str, &tmp) != SR_OK) | |
592 | return SR_ERR; | |
593 | state->sample_rate = tmp / (((float) (*config->timebases)[state->timebase][0] / | |
594 | (*config->timebases)[state->timebase][1]) * | |
595 | config->num_xdivs); | |
596 | } | |
597 | ||
598 | return SR_OK; | |
599 | } | |
600 | ||
719eff68 | 601 | SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi) |
13f2b9d7 DJ |
602 | { |
603 | struct dev_context *devc; | |
604 | struct scope_state *state; | |
329733d9 | 605 | const struct scope_config *config; |
8de2dc3b DJ |
606 | float tmp_float; |
607 | unsigned int i; | |
8cccbac8 | 608 | char *tmp_str; |
13f2b9d7 DJ |
609 | |
610 | devc = sdi->priv; | |
611 | config = devc->model_config; | |
612 | state = devc->model_state; | |
613 | ||
8de2dc3b DJ |
614 | sr_info("Fetching scope state"); |
615 | ||
13f2b9d7 DJ |
616 | if (analog_channel_state_get(sdi->conn, config, state) != SR_OK) |
617 | return SR_ERR; | |
618 | ||
619 | if (digital_channel_state_get(sdi->conn, config, state) != SR_OK) | |
620 | return SR_ERR; | |
621 | ||
89280b1a UH |
622 | if (sr_scpi_get_float(sdi->conn, |
623 | (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE], | |
8de2dc3b DJ |
624 | &tmp_float) != SR_OK) |
625 | return SR_ERR; | |
626 | ||
8cccbac8 SA |
627 | if (sr_scpi_get_string(sdi->conn, |
628 | (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE], | |
629 | &tmp_str) != SR_OK) | |
630 | return SR_ERR; | |
631 | ||
632 | if (array_float_get(tmp_str, hmo_timebases, ARRAY_SIZE(hmo_timebases), | |
633 | &i) != SR_OK) { | |
634 | g_free(tmp_str); | |
b4e31d2a | 635 | sr_err("Could not determine array index for time base."); |
13f2b9d7 | 636 | return SR_ERR; |
b4e31d2a | 637 | } |
e5b7eef7 | 638 | g_free(tmp_str); |
13f2b9d7 | 639 | |
8cccbac8 SA |
640 | state->timebase = i; |
641 | ||
89280b1a UH |
642 | if (sr_scpi_get_float(sdi->conn, |
643 | (*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS], | |
422a1c0d | 644 | &tmp_float) != SR_OK) |
13f2b9d7 | 645 | return SR_ERR; |
422a1c0d DJ |
646 | state->horiz_triggerpos = tmp_float / |
647 | (((double) (*config->timebases)[state->timebase][0] / | |
648 | (*config->timebases)[state->timebase][1]) * config->num_xdivs); | |
649 | state->horiz_triggerpos -= 0.5; | |
650 | state->horiz_triggerpos *= -1; | |
13f2b9d7 | 651 | |
89280b1a UH |
652 | if (scope_state_get_array_option(sdi->conn, |
653 | (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE], | |
654 | config->trigger_sources, &state->trigger_source) != SR_OK) | |
13f2b9d7 DJ |
655 | return SR_ERR; |
656 | ||
89280b1a UH |
657 | if (scope_state_get_array_option(sdi->conn, |
658 | (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE], | |
659 | config->trigger_slopes, &state->trigger_slope) != SR_OK) | |
13f2b9d7 DJ |
660 | return SR_ERR; |
661 | ||
14a2f74d DJ |
662 | if (hmo_update_sample_rate(sdi) != SR_OK) |
663 | return SR_ERR; | |
664 | ||
8de2dc3b DJ |
665 | sr_info("Fetching finished."); |
666 | ||
13f2b9d7 DJ |
667 | scope_state_dump(config, state); |
668 | ||
669 | return SR_OK; | |
670 | } | |
671 | ||
329733d9 | 672 | static struct scope_state *scope_state_new(const struct scope_config *config) |
13f2b9d7 DJ |
673 | { |
674 | struct scope_state *state; | |
675 | ||
a95f142e UH |
676 | state = g_malloc0(sizeof(struct scope_state)); |
677 | state->analog_channels = g_malloc0_n(config->analog_channels, | |
678 | sizeof(struct analog_channel_state)); | |
679 | state->digital_channels = g_malloc0_n( | |
680 | config->digital_channels, sizeof(gboolean)); | |
681 | state->digital_pods = g_malloc0_n(config->digital_pods, | |
682 | sizeof(gboolean)); | |
13f2b9d7 DJ |
683 | |
684 | return state; | |
13f2b9d7 DJ |
685 | } |
686 | ||
719eff68 | 687 | SR_PRIV void hmo_scope_state_free(struct scope_state *state) |
13f2b9d7 DJ |
688 | { |
689 | g_free(state->analog_channels); | |
690 | g_free(state->digital_channels); | |
691 | g_free(state->digital_pods); | |
692 | g_free(state); | |
693 | } | |
694 | ||
695 | SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi) | |
696 | { | |
697 | char tmp[25]; | |
698 | int model_index; | |
2d224dba | 699 | unsigned int i, j, group; |
ba7dd8bb | 700 | struct sr_channel *ch; |
13f2b9d7 DJ |
701 | struct dev_context *devc; |
702 | ||
703 | devc = sdi->priv; | |
704 | model_index = -1; | |
705 | ||
89280b1a | 706 | /* Find the exact model. */ |
13f2b9d7 DJ |
707 | for (i = 0; i < ARRAY_SIZE(scope_models); i++) { |
708 | for (j = 0; scope_models[i].name[j]; j++) { | |
709 | if (!strcmp(sdi->model, scope_models[i].name[j])) { | |
710 | model_index = i; | |
711 | break; | |
712 | } | |
713 | } | |
714 | if (model_index != -1) | |
715 | break; | |
716 | } | |
717 | ||
718 | if (model_index == -1) { | |
89280b1a | 719 | sr_dbg("Unsupported HMO device."); |
13f2b9d7 DJ |
720 | return SR_ERR_NA; |
721 | } | |
722 | ||
562b7ae5 SA |
723 | devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) * |
724 | scope_models[model_index].analog_channels); | |
13f2b9d7 | 725 | |
562b7ae5 SA |
726 | devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) * |
727 | scope_models[model_index].digital_pods); | |
13f2b9d7 | 728 | |
89280b1a | 729 | /* Add analog channels. */ |
13f2b9d7 | 730 | for (i = 0; i < scope_models[model_index].analog_channels; i++) { |
5e23fcab | 731 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, |
c368e6f3 | 732 | (*scope_models[model_index].analog_names)[i]); |
13f2b9d7 | 733 | |
562b7ae5 SA |
734 | devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); |
735 | ||
736 | devc->analog_groups[i]->name = g_strdup( | |
737 | (char *)(*scope_models[model_index].analog_names)[i]); | |
738 | devc->analog_groups[i]->channels = g_slist_append(NULL, ch); | |
13f2b9d7 | 739 | |
660e398f | 740 | sdi->channel_groups = g_slist_append(sdi->channel_groups, |
562b7ae5 | 741 | devc->analog_groups[i]); |
13f2b9d7 DJ |
742 | } |
743 | ||
660e398f | 744 | /* Add digital channel groups. */ |
0a1f7b09 | 745 | for (i = 0; i < scope_models[model_index].digital_pods; i++) { |
13f2b9d7 | 746 | g_snprintf(tmp, 25, "POD%d", i); |
562b7ae5 SA |
747 | |
748 | devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); | |
749 | ||
750 | devc->digital_groups[i]->name = g_strdup(tmp); | |
660e398f | 751 | sdi->channel_groups = g_slist_append(sdi->channel_groups, |
2d224dba | 752 | devc->digital_groups[i]); |
13f2b9d7 DJ |
753 | } |
754 | ||
89280b1a | 755 | /* Add digital channels. */ |
13f2b9d7 | 756 | for (i = 0; i < scope_models[model_index].digital_channels; i++) { |
5e23fcab | 757 | ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, |
c368e6f3 | 758 | (*scope_models[model_index].digital_names)[i]); |
13f2b9d7 | 759 | |
2d224dba GS |
760 | group = i / 8; |
761 | devc->digital_groups[group]->channels = g_slist_append( | |
762 | devc->digital_groups[group]->channels, ch); | |
13f2b9d7 DJ |
763 | } |
764 | ||
765 | devc->model_config = &scope_models[model_index]; | |
766 | devc->frame_limit = 0; | |
767 | ||
768 | if (!(devc->model_state = scope_state_new(devc->model_config))) | |
769 | return SR_ERR_MALLOC; | |
770 | ||
771 | return SR_OK; | |
772 | } | |
773 | ||
e06875b2 GS |
774 | /* Queue data of one channel group, for later submission. */ |
775 | SR_PRIV void hmo_queue_logic_data(struct dev_context *devc, | |
776 | size_t group, GByteArray *pod_data) | |
777 | { | |
778 | size_t size; | |
779 | GByteArray *store; | |
780 | uint8_t *logic_data; | |
781 | size_t idx, logic_step; | |
782 | ||
783 | /* | |
784 | * Upon first invocation, allocate the array which can hold the | |
785 | * combined logic data for all channels. Assume that each channel | |
786 | * will yield an identical number of samples per receive call. | |
787 | * | |
788 | * As a poor man's safety measure: (Silently) skip processing | |
789 | * for unexpected sample counts, and ignore samples for | |
790 | * unexpected channel groups. Don't bother with complicated | |
791 | * resize logic, considering that many models only support one | |
792 | * pod, and the most capable supported models have two pods of | |
793 | * identical size. We haven't yet seen any "odd" configuration. | |
794 | */ | |
795 | if (!devc->logic_data) { | |
796 | size = pod_data->len * devc->pod_count; | |
797 | store = g_byte_array_sized_new(size); | |
798 | memset(store->data, 0, size); | |
799 | store = g_byte_array_set_size(store, size); | |
800 | devc->logic_data = store; | |
801 | } else { | |
802 | store = devc->logic_data; | |
803 | size = store->len / devc->pod_count; | |
804 | if (size != pod_data->len) | |
805 | return; | |
806 | if (group >= devc->pod_count) | |
807 | return; | |
808 | } | |
809 | ||
810 | /* | |
811 | * Fold the data of the most recently received channel group into | |
812 | * the storage, where data resides for all channels combined. | |
813 | */ | |
814 | logic_data = store->data; | |
815 | logic_data += group; | |
816 | logic_step = devc->pod_count; | |
817 | for (idx = 0; idx < pod_data->len; idx++) { | |
818 | *logic_data = pod_data->data[idx]; | |
819 | logic_data += logic_step; | |
820 | } | |
821 | } | |
822 | ||
823 | /* Submit data for all channels, after the individual groups got collected. */ | |
824 | SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi, | |
825 | struct dev_context *devc) | |
826 | { | |
827 | struct sr_datafeed_packet packet; | |
828 | struct sr_datafeed_logic logic; | |
829 | ||
830 | if (!devc->logic_data) | |
831 | return; | |
832 | ||
833 | logic.data = devc->logic_data->data; | |
834 | logic.length = devc->logic_data->len; | |
835 | logic.unitsize = devc->pod_count; | |
836 | ||
837 | packet.type = SR_DF_LOGIC; | |
838 | packet.payload = &logic; | |
839 | ||
840 | sr_session_send(sdi, &packet); | |
841 | } | |
842 | ||
843 | /* Undo previous resource allocation. */ | |
844 | SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc) | |
845 | { | |
846 | ||
847 | if (devc->logic_data) { | |
848 | g_byte_array_free(devc->logic_data, TRUE); | |
849 | devc->logic_data = NULL; | |
850 | } | |
851 | /* | |
852 | * Keep 'pod_count'! It's required when more frames will be | |
853 | * received, and does not harm when kept after acquisition. | |
854 | */ | |
855 | } | |
856 | ||
719eff68 | 857 | SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data) |
06a3e78a | 858 | { |
ba7dd8bb | 859 | struct sr_channel *ch; |
13f2b9d7 | 860 | struct sr_dev_inst *sdi; |
06a3e78a | 861 | struct dev_context *devc; |
401b83a1 | 862 | struct scope_state *state; |
13f2b9d7 | 863 | struct sr_datafeed_packet packet; |
401b83a1 SB |
864 | GByteArray *data; |
865 | struct sr_datafeed_analog analog; | |
866 | struct sr_analog_encoding encoding; | |
867 | struct sr_analog_meaning meaning; | |
868 | struct sr_analog_spec spec; | |
89280b1a | 869 | struct sr_datafeed_logic logic; |
e06875b2 | 870 | size_t group; |
06a3e78a DJ |
871 | |
872 | (void)fd; | |
f0729866 | 873 | (void)revents; |
06a3e78a | 874 | |
f62f595b MK |
875 | data = NULL; |
876 | ||
06a3e78a DJ |
877 | if (!(sdi = cb_data)) |
878 | return TRUE; | |
879 | ||
880 | if (!(devc = sdi->priv)) | |
881 | return TRUE; | |
882 | ||
f4f273ce SB |
883 | /* Although this is correct in general, the USBTMC libusb implementation |
884 | * currently does not generate an event prior to the first read. Often | |
885 | * it is ok to start reading just after the 50ms timeout. See bug #785. | |
dc89faea UH |
886 | if (revents != G_IO_IN) |
887 | return TRUE; | |
f4f273ce | 888 | */ |
13f2b9d7 | 889 | |
dc89faea | 890 | ch = devc->current_channel->data; |
401b83a1 | 891 | state = devc->model_state; |
13f2b9d7 | 892 | |
b23eb1d4 GS |
893 | /* |
894 | * Send "frame begin" packet upon reception of data for the | |
895 | * first enabled channel. | |
896 | */ | |
897 | if (devc->current_channel == devc->enabled_channels) { | |
898 | packet.type = SR_DF_FRAME_BEGIN; | |
899 | sr_session_send(sdi, &packet); | |
900 | } | |
901 | ||
902 | /* | |
903 | * Pass on the received data of the channel(s). | |
904 | */ | |
dc89faea UH |
905 | switch (ch->type) { |
906 | case SR_CHANNEL_ANALOG: | |
401b83a1 | 907 | if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) { |
dc89faea | 908 | if (data) |
401b83a1 | 909 | g_byte_array_free(data, TRUE); |
13f2b9d7 | 910 | |
dc89faea | 911 | return TRUE; |
13f2b9d7 DJ |
912 | } |
913 | ||
401b83a1 SB |
914 | packet.type = SR_DF_ANALOG; |
915 | ||
916 | analog.data = data->data; | |
917 | analog.num_samples = data->len / sizeof(float); | |
918 | analog.encoding = &encoding; | |
919 | analog.meaning = &meaning; | |
920 | analog.spec = &spec; | |
921 | ||
922 | encoding.unitsize = sizeof(float); | |
923 | encoding.is_signed = TRUE; | |
924 | encoding.is_float = TRUE; | |
65a6794e GS |
925 | #ifdef WORDS_BIGENDIAN |
926 | encoding.is_bigendian = TRUE; | |
927 | #else | |
d1ad8b10 | 928 | encoding.is_bigendian = FALSE; |
65a6794e | 929 | #endif |
7dcaddd3 UH |
930 | /* TODO: Use proper 'digits' value for this device (and its modes). */ |
931 | encoding.digits = 2; | |
401b83a1 SB |
932 | encoding.is_digits_decimal = FALSE; |
933 | encoding.scale.p = 1; | |
934 | encoding.scale.q = 1; | |
935 | encoding.offset.p = 0; | |
936 | encoding.offset.q = 1; | |
937 | if (state->analog_channels[ch->index].probe_unit == 'V') { | |
938 | meaning.mq = SR_MQ_VOLTAGE; | |
939 | meaning.unit = SR_UNIT_VOLT; | |
940 | } else { | |
941 | meaning.mq = SR_MQ_CURRENT; | |
942 | meaning.unit = SR_UNIT_AMPERE; | |
943 | } | |
944 | meaning.mqflags = 0; | |
945 | meaning.channels = g_slist_append(NULL, ch); | |
7dcaddd3 UH |
946 | /* TODO: Use proper 'digits' value for this device (and its modes). */ |
947 | spec.spec_digits = 2; | |
dc89faea | 948 | packet.payload = &analog; |
695dc859 | 949 | sr_session_send(sdi, &packet); |
401b83a1 SB |
950 | g_slist_free(meaning.channels); |
951 | g_byte_array_free(data, TRUE); | |
dc89faea UH |
952 | data = NULL; |
953 | break; | |
954 | case SR_CHANNEL_LOGIC: | |
401b83a1 | 955 | if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) { |
dc89faea UH |
956 | g_free(data); |
957 | return TRUE; | |
13f2b9d7 | 958 | } |
dc89faea | 959 | |
e06875b2 GS |
960 | /* |
961 | * If only data from the first pod is involved in the | |
962 | * acquisition, then the raw input bytes can get passed | |
963 | * forward for performance reasons. When the second pod | |
964 | * is involved (either alone, or in combination with the | |
965 | * first pod), then the received bytes need to be put | |
966 | * into memory in such a layout that all channel groups | |
967 | * get combined, and a unitsize larger than a single byte | |
968 | * applies. The "queue" logic transparently copes with | |
969 | * any such configuration. This works around the lack | |
970 | * of support for "meaning" to logic data, which is used | |
971 | * above for analog data. | |
972 | */ | |
973 | if (devc->pod_count == 1) { | |
974 | packet.type = SR_DF_LOGIC; | |
975 | logic.data = data->data; | |
976 | logic.length = data->len; | |
977 | logic.unitsize = 1; | |
978 | packet.payload = &logic; | |
979 | sr_session_send(sdi, &packet); | |
980 | } else { | |
981 | group = ch->index / 8; | |
982 | hmo_queue_logic_data(devc, group, data); | |
983 | } | |
dc89faea | 984 | |
401b83a1 | 985 | g_byte_array_free(data, TRUE); |
dc89faea UH |
986 | data = NULL; |
987 | break; | |
988 | default: | |
989 | sr_err("Invalid channel type."); | |
990 | break; | |
991 | } | |
992 | ||
b23eb1d4 GS |
993 | /* |
994 | * Advance to the next enabled channel. When data for all enabled | |
e06875b2 GS |
995 | * channels was received, then flush potentially queued logic data, |
996 | * and send the "frame end" packet. | |
b23eb1d4 | 997 | */ |
dc89faea UH |
998 | if (devc->current_channel->next) { |
999 | devc->current_channel = devc->current_channel->next; | |
1000 | hmo_request_data(sdi); | |
b23eb1d4 GS |
1001 | return TRUE; |
1002 | } | |
e06875b2 GS |
1003 | hmo_send_logic_packet(sdi, devc); |
1004 | ||
1005 | /* | |
1006 | * Release the logic data storage after each frame. This copes | |
1007 | * with sample counts that differ in length per frame. -- Is | |
1008 | * this a real constraint when acquiring multiple frames with | |
1009 | * identical device settings? | |
1010 | */ | |
1011 | hmo_cleanup_logic_data(devc); | |
1012 | ||
b23eb1d4 GS |
1013 | packet.type = SR_DF_FRAME_END; |
1014 | sr_session_send(sdi, &packet); | |
1015 | ||
1016 | /* | |
1017 | * End of frame was reached. Stop acquisition after the specified | |
1018 | * number of frames, or continue reception by starting over at | |
1019 | * the first enabled channel. | |
1020 | */ | |
1021 | if (++devc->num_frames == devc->frame_limit) { | |
695dc859 | 1022 | sdi->driver->dev_acquisition_stop(sdi); |
e06875b2 | 1023 | hmo_cleanup_logic_data(devc); |
dc89faea UH |
1024 | } else { |
1025 | devc->current_channel = devc->enabled_channels; | |
1026 | hmo_request_data(sdi); | |
06a3e78a DJ |
1027 | } |
1028 | ||
1029 | return TRUE; | |
1030 | } |