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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 | ||
4b25cbff | 60 | static const uint32_t devopts[] = { |
13f2b9d7 | 61 | SR_CONF_OSCILLOSCOPE, |
a1b61e6e | 62 | SR_CONF_LIMIT_FRAMES | SR_CONF_GET | SR_CONF_SET, |
86621306 | 63 | SR_CONF_SAMPLERATE | SR_CONF_GET, |
5827f61b | 64 | SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
bf622e6d | 65 | SR_CONF_NUM_HDIV | SR_CONF_GET, |
5827f61b | 66 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, |
86621306 UH |
67 | SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
68 | SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
13f2b9d7 DJ |
69 | }; |
70 | ||
6b82c3e5 | 71 | static const uint32_t devopts_cg_analog[] = { |
5827f61b | 72 | SR_CONF_NUM_VDIV | SR_CONF_GET, |
5827f61b | 73 | SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
86621306 | 74 | SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
13f2b9d7 DJ |
75 | }; |
76 | ||
4b25cbff | 77 | static const char *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 | 82 | "GND", |
13f2b9d7 DJ |
83 | }; |
84 | ||
85 | static const char *scope_trigger_slopes[] = { | |
86 | "POS", | |
87 | "NEG", | |
356f64f8 | 88 | "EITH", |
13f2b9d7 DJ |
89 | }; |
90 | ||
4b25cbff | 91 | static const char *compact2_trigger_sources[] = { |
f8195cb2 UH |
92 | "CH1", "CH2", |
93 | "LINE", "EXT", "PATT", "BUS1", "BUS2", | |
94 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
13f2b9d7 DJ |
95 | }; |
96 | ||
4b25cbff | 97 | static const char *compact4_trigger_sources[] = { |
f8195cb2 UH |
98 | "CH1", "CH2", "CH3", "CH4", |
99 | "LINE", "EXT", "PATT", "BUS1", "BUS2", | |
100 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
13f2b9d7 DJ |
101 | }; |
102 | ||
4b25cbff | 103 | static const char *compact4_dig16_trigger_sources[] = { |
f8195cb2 UH |
104 | "CH1", "CH2", "CH3", "CH4", |
105 | "LINE", "EXT", "PATT", "BUS1", "BUS2", | |
106 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
107 | "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15", | |
74413faf GS |
108 | }; |
109 | ||
4b25cbff | 110 | static const uint64_t timebases[][2] = { |
13f2b9d7 DJ |
111 | /* nanoseconds */ |
112 | { 2, 1000000000 }, | |
113 | { 5, 1000000000 }, | |
114 | { 10, 1000000000 }, | |
115 | { 20, 1000000000 }, | |
116 | { 50, 1000000000 }, | |
117 | { 100, 1000000000 }, | |
118 | { 200, 1000000000 }, | |
119 | { 500, 1000000000 }, | |
120 | /* microseconds */ | |
121 | { 1, 1000000 }, | |
122 | { 2, 1000000 }, | |
123 | { 5, 1000000 }, | |
124 | { 10, 1000000 }, | |
125 | { 20, 1000000 }, | |
126 | { 50, 1000000 }, | |
127 | { 100, 1000000 }, | |
128 | { 200, 1000000 }, | |
129 | { 500, 1000000 }, | |
130 | /* milliseconds */ | |
131 | { 1, 1000 }, | |
132 | { 2, 1000 }, | |
133 | { 5, 1000 }, | |
134 | { 10, 1000 }, | |
135 | { 20, 1000 }, | |
136 | { 50, 1000 }, | |
137 | { 100, 1000 }, | |
138 | { 200, 1000 }, | |
139 | { 500, 1000 }, | |
140 | /* seconds */ | |
141 | { 1, 1 }, | |
142 | { 2, 1 }, | |
143 | { 5, 1 }, | |
144 | { 10, 1 }, | |
145 | { 20, 1 }, | |
146 | { 50, 1 }, | |
147 | }; | |
148 | ||
4b25cbff | 149 | static const uint64_t vdivs[][2] = { |
13f2b9d7 DJ |
150 | /* millivolts */ |
151 | { 1, 1000 }, | |
152 | { 2, 1000 }, | |
153 | { 5, 1000 }, | |
154 | { 10, 1000 }, | |
155 | { 20, 1000 }, | |
156 | { 50, 1000 }, | |
157 | { 100, 1000 }, | |
158 | { 200, 1000 }, | |
159 | { 500, 1000 }, | |
160 | /* volts */ | |
161 | { 1, 1 }, | |
162 | { 2, 1 }, | |
163 | { 5, 1 }, | |
164 | { 10, 1 }, | |
fe227d17 SA |
165 | { 20, 1 }, |
166 | { 50, 1 }, | |
13f2b9d7 DJ |
167 | }; |
168 | ||
ba7dd8bb | 169 | static const char *scope_analog_channel_names[] = { |
f8195cb2 | 170 | "CH1", "CH2", "CH3", "CH4", |
13f2b9d7 DJ |
171 | }; |
172 | ||
ba7dd8bb | 173 | static const char *scope_digital_channel_names[] = { |
f8195cb2 UH |
174 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", |
175 | "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15", | |
13f2b9d7 DJ |
176 | }; |
177 | ||
329733d9 | 178 | static const struct scope_config scope_models[] = { |
13f2b9d7 | 179 | { |
e786b194 | 180 | /* HMO2522/3032/3042/3052 support 16 digital channels but they're not supported yet. */ |
da1726cc | 181 | .name = {"HMO1002", "HMO722", "HMO1022", "HMO1522", "HMO2022", "HMO2522", |
e786b194 | 182 | "HMO3032", "HMO3042", "HMO3052", NULL}, |
13f2b9d7 DJ |
183 | .analog_channels = 2, |
184 | .digital_channels = 8, | |
185 | .digital_pods = 1, | |
186 | ||
ba7dd8bb UH |
187 | .analog_names = &scope_analog_channel_names, |
188 | .digital_names = &scope_digital_channel_names, | |
13f2b9d7 | 189 | |
4b25cbff UH |
190 | .devopts = &devopts, |
191 | .num_devopts = ARRAY_SIZE(devopts), | |
13f2b9d7 | 192 | |
6b82c3e5 UH |
193 | .devopts_cg_analog = &devopts_cg_analog, |
194 | .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog), | |
13f2b9d7 | 195 | |
4b25cbff | 196 | .coupling_options = &coupling_options, |
692716f5 UH |
197 | .num_coupling_options = ARRAY_SIZE(coupling_options), |
198 | ||
4b25cbff | 199 | .trigger_sources = &compact2_trigger_sources, |
692716f5 UH |
200 | .num_trigger_sources = ARRAY_SIZE(compact2_trigger_sources), |
201 | ||
13f2b9d7 | 202 | .trigger_slopes = &scope_trigger_slopes, |
692716f5 | 203 | .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes), |
13f2b9d7 | 204 | |
4b25cbff UH |
205 | .timebases = &timebases, |
206 | .num_timebases = ARRAY_SIZE(timebases), | |
13f2b9d7 | 207 | |
4b25cbff UH |
208 | .vdivs = &vdivs, |
209 | .num_vdivs = ARRAY_SIZE(vdivs), | |
13f2b9d7 DJ |
210 | |
211 | .num_xdivs = 12, | |
212 | .num_ydivs = 8, | |
213 | ||
214 | .scpi_dialect = &hameg_scpi_dialect, | |
215 | }, | |
216 | { | |
74413faf | 217 | .name = {"HMO724", "HMO1024", "HMO1524", "HMO2024", NULL}, |
13f2b9d7 DJ |
218 | .analog_channels = 4, |
219 | .digital_channels = 8, | |
220 | .digital_pods = 1, | |
221 | ||
ba7dd8bb UH |
222 | .analog_names = &scope_analog_channel_names, |
223 | .digital_names = &scope_digital_channel_names, | |
13f2b9d7 | 224 | |
4b25cbff UH |
225 | .devopts = &devopts, |
226 | .num_devopts = ARRAY_SIZE(devopts), | |
13f2b9d7 | 227 | |
6b82c3e5 UH |
228 | .devopts_cg_analog = &devopts_cg_analog, |
229 | .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog), | |
13f2b9d7 | 230 | |
4b25cbff | 231 | .coupling_options = &coupling_options, |
692716f5 UH |
232 | .num_coupling_options = ARRAY_SIZE(coupling_options), |
233 | ||
4b25cbff | 234 | .trigger_sources = &compact4_trigger_sources, |
692716f5 UH |
235 | .num_trigger_sources = ARRAY_SIZE(compact4_trigger_sources), |
236 | ||
13f2b9d7 | 237 | .trigger_slopes = &scope_trigger_slopes, |
692716f5 | 238 | .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes), |
13f2b9d7 | 239 | |
4b25cbff UH |
240 | .timebases = &timebases, |
241 | .num_timebases = ARRAY_SIZE(timebases), | |
13f2b9d7 | 242 | |
4b25cbff UH |
243 | .vdivs = &vdivs, |
244 | .num_vdivs = ARRAY_SIZE(vdivs), | |
13f2b9d7 DJ |
245 | |
246 | .num_xdivs = 12, | |
247 | .num_ydivs = 8, | |
248 | ||
74413faf GS |
249 | .scpi_dialect = &hameg_scpi_dialect, |
250 | }, | |
251 | { | |
bf8a02b6 | 252 | .name = {"HMO2524", "HMO3034", "HMO3044", "HMO3054", "HMO3524", NULL}, |
74413faf GS |
253 | .analog_channels = 4, |
254 | .digital_channels = 16, | |
255 | .digital_pods = 2, | |
256 | ||
257 | .analog_names = &scope_analog_channel_names, | |
258 | .digital_names = &scope_digital_channel_names, | |
259 | ||
4b25cbff UH |
260 | .devopts = &devopts, |
261 | .num_devopts = ARRAY_SIZE(devopts), | |
74413faf | 262 | |
6b82c3e5 UH |
263 | .devopts_cg_analog = &devopts_cg_analog, |
264 | .num_devopts_cg_analog = ARRAY_SIZE(devopts_cg_analog), | |
74413faf | 265 | |
4b25cbff | 266 | .coupling_options = &coupling_options, |
692716f5 UH |
267 | .num_coupling_options = ARRAY_SIZE(coupling_options), |
268 | ||
4b25cbff | 269 | .trigger_sources = &compact4_dig16_trigger_sources, |
692716f5 UH |
270 | .num_trigger_sources = ARRAY_SIZE(compact4_dig16_trigger_sources), |
271 | ||
74413faf | 272 | .trigger_slopes = &scope_trigger_slopes, |
692716f5 | 273 | .num_trigger_slopes = ARRAY_SIZE(scope_trigger_slopes), |
74413faf | 274 | |
4b25cbff UH |
275 | .timebases = &timebases, |
276 | .num_timebases = ARRAY_SIZE(timebases), | |
74413faf | 277 | |
4b25cbff UH |
278 | .vdivs = &vdivs, |
279 | .num_vdivs = ARRAY_SIZE(vdivs), | |
74413faf GS |
280 | |
281 | .num_xdivs = 12, | |
282 | .num_ydivs = 8, | |
283 | ||
13f2b9d7 DJ |
284 | .scpi_dialect = &hameg_scpi_dialect, |
285 | }, | |
286 | }; | |
287 | ||
329733d9 | 288 | static void scope_state_dump(const struct scope_config *config, |
13f2b9d7 DJ |
289 | struct scope_state *state) |
290 | { | |
291 | unsigned int i; | |
8de2dc3b | 292 | char *tmp; |
13f2b9d7 | 293 | |
0a1f7b09 | 294 | for (i = 0; i < config->analog_channels; i++) { |
8de2dc3b DJ |
295 | tmp = sr_voltage_string((*config->vdivs)[state->analog_channels[i].vdiv][0], |
296 | (*config->vdivs)[state->analog_channels[i].vdiv][1]); | |
d9251a2c | 297 | sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)", |
8de2dc3b | 298 | i + 1, state->analog_channels[i].state ? "On" : "Off", |
13f2b9d7 | 299 | (*config->coupling_options)[state->analog_channels[i].coupling], |
8de2dc3b | 300 | tmp, state->analog_channels[i].vertical_offset); |
13f2b9d7 DJ |
301 | } |
302 | ||
0a1f7b09 | 303 | for (i = 0; i < config->digital_channels; i++) { |
13f2b9d7 DJ |
304 | sr_info("State of digital channel %d -> %s", i, |
305 | state->digital_channels[i] ? "On" : "Off"); | |
306 | } | |
307 | ||
0a1f7b09 | 308 | for (i = 0; i < config->digital_pods; i++) { |
13f2b9d7 DJ |
309 | sr_info("State of digital POD %d -> %s", i, |
310 | state->digital_pods[i] ? "On" : "Off"); | |
311 | } | |
312 | ||
6984cfb2 SA |
313 | tmp = sr_period_string((*config->timebases)[state->timebase][0], |
314 | (*config->timebases)[state->timebase][1]); | |
8de2dc3b DJ |
315 | sr_info("Current timebase: %s", tmp); |
316 | g_free(tmp); | |
317 | ||
14a2f74d DJ |
318 | tmp = sr_samplerate_string(state->sample_rate); |
319 | sr_info("Current samplerate: %s", tmp); | |
320 | g_free(tmp); | |
321 | ||
422a1c0d | 322 | sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)", |
13f2b9d7 DJ |
323 | (*config->trigger_sources)[state->trigger_source], |
324 | (*config->trigger_slopes)[state->trigger_slope], | |
325 | state->horiz_triggerpos); | |
326 | } | |
327 | ||
23f43dff | 328 | static int scope_state_get_array_option(struct sr_scpi_dev_inst *scpi, |
692716f5 | 329 | const char *command, const char *(*array)[], unsigned int n, int *result) |
13f2b9d7 DJ |
330 | { |
331 | char *tmp; | |
332 | unsigned int i; | |
333 | ||
23f43dff | 334 | if (sr_scpi_get_string(scpi, command, &tmp) != SR_OK) { |
89280b1a | 335 | g_free(tmp); |
13f2b9d7 DJ |
336 | return SR_ERR; |
337 | } | |
338 | ||
692716f5 | 339 | for (i = 0; i < n; i++) { |
13f2b9d7 DJ |
340 | if (!g_strcmp0(tmp, (*array)[i])) { |
341 | *result = i; | |
342 | g_free(tmp); | |
343 | tmp = NULL; | |
344 | break; | |
345 | } | |
346 | } | |
347 | ||
348 | if (tmp) { | |
349 | g_free(tmp); | |
350 | return SR_ERR; | |
351 | } | |
352 | ||
353 | return SR_OK; | |
354 | } | |
355 | ||
8fff7519 | 356 | /** |
a53acd7d SB |
357 | * This function takes a value of the form "2.000E-03" and returns the index |
358 | * of an array where a matching pair was found. | |
8fff7519 SA |
359 | * |
360 | * @param value The string to be parsed. | |
361 | * @param array The array of s/f pairs. | |
362 | * @param array_len The number of pairs in the array. | |
363 | * @param result The index at which a matching pair was found. | |
364 | * | |
365 | * @return SR_ERR on any parsing error, SR_OK otherwise. | |
366 | */ | |
367 | static int array_float_get(gchar *value, const uint64_t array[][2], | |
650847e7 | 368 | int array_len, unsigned int *result) |
8fff7519 | 369 | { |
a53acd7d SB |
370 | struct sr_rational rval; |
371 | struct sr_rational aval; | |
8cccbac8 | 372 | |
a53acd7d | 373 | if (sr_parse_rational(value, &rval) != SR_OK) |
8fff7519 SA |
374 | return SR_ERR; |
375 | ||
a53acd7d SB |
376 | for (int i = 0; i < array_len; i++) { |
377 | sr_rational_set(&aval, array[i][0], array[i][1]); | |
378 | if (sr_rational_eq(&rval, &aval)) { | |
8fff7519 SA |
379 | *result = i; |
380 | return SR_OK; | |
381 | } | |
382 | } | |
383 | ||
384 | return SR_ERR; | |
385 | } | |
386 | ||
23f43dff | 387 | static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi, |
329733d9 | 388 | const struct scope_config *config, |
13f2b9d7 DJ |
389 | struct scope_state *state) |
390 | { | |
8de2dc3b | 391 | unsigned int i, j; |
13f2b9d7 | 392 | char command[MAX_COMMAND_SIZE]; |
8fff7519 | 393 | char *tmp_str; |
13f2b9d7 | 394 | |
0a1f7b09 | 395 | for (i = 0; i < config->analog_channels; i++) { |
13f2b9d7 DJ |
396 | g_snprintf(command, sizeof(command), |
397 | (*config->scpi_dialect)[SCPI_CMD_GET_ANALOG_CHAN_STATE], | |
398 | i + 1); | |
399 | ||
23f43dff | 400 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
401 | &state->analog_channels[i].state) != SR_OK) |
402 | return SR_ERR; | |
403 | ||
404 | g_snprintf(command, sizeof(command), | |
405 | (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_DIV], | |
406 | i + 1); | |
407 | ||
8fff7519 | 408 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) |
8de2dc3b | 409 | return SR_ERR; |
8fff7519 | 410 | |
53012da6 | 411 | if (array_float_get(tmp_str, ARRAY_AND_SIZE(vdivs), &j) != SR_OK) { |
8fff7519 | 412 | g_free(tmp_str); |
b4e31d2a | 413 | sr_err("Could not determine array index for vertical div scale."); |
13f2b9d7 | 414 | return SR_ERR; |
b4e31d2a | 415 | } |
13f2b9d7 | 416 | |
8fff7519 SA |
417 | g_free(tmp_str); |
418 | state->analog_channels[i].vdiv = j; | |
419 | ||
13f2b9d7 DJ |
420 | g_snprintf(command, sizeof(command), |
421 | (*config->scpi_dialect)[SCPI_CMD_GET_VERTICAL_OFFSET], | |
422 | i + 1); | |
423 | ||
23f43dff | 424 | if (sr_scpi_get_float(scpi, command, |
13f2b9d7 DJ |
425 | &state->analog_channels[i].vertical_offset) != SR_OK) |
426 | return SR_ERR; | |
427 | ||
428 | g_snprintf(command, sizeof(command), | |
429 | (*config->scpi_dialect)[SCPI_CMD_GET_COUPLING], | |
430 | i + 1); | |
431 | ||
23f43dff | 432 | if (scope_state_get_array_option(scpi, command, config->coupling_options, |
692716f5 | 433 | config->num_coupling_options, |
13f2b9d7 DJ |
434 | &state->analog_channels[i].coupling) != SR_OK) |
435 | return SR_ERR; | |
448e81b1 SB |
436 | |
437 | g_snprintf(command, sizeof(command), | |
438 | (*config->scpi_dialect)[SCPI_CMD_GET_PROBE_UNIT], | |
439 | i + 1); | |
440 | ||
441 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) | |
442 | return SR_ERR; | |
443 | ||
444 | if (tmp_str[0] == 'A') | |
445 | state->analog_channels[i].probe_unit = 'A'; | |
446 | else | |
447 | state->analog_channels[i].probe_unit = 'V'; | |
448 | g_free(tmp_str); | |
13f2b9d7 DJ |
449 | } |
450 | ||
451 | return SR_OK; | |
452 | } | |
453 | ||
23f43dff | 454 | static int digital_channel_state_get(struct sr_scpi_dev_inst *scpi, |
329733d9 | 455 | const struct scope_config *config, |
13f2b9d7 DJ |
456 | struct scope_state *state) |
457 | { | |
458 | unsigned int i; | |
459 | char command[MAX_COMMAND_SIZE]; | |
460 | ||
0a1f7b09 | 461 | for (i = 0; i < config->digital_channels; i++) { |
13f2b9d7 DJ |
462 | g_snprintf(command, sizeof(command), |
463 | (*config->scpi_dialect)[SCPI_CMD_GET_DIG_CHAN_STATE], | |
464 | i); | |
465 | ||
23f43dff | 466 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
467 | &state->digital_channels[i]) != SR_OK) |
468 | return SR_ERR; | |
469 | } | |
470 | ||
0a1f7b09 | 471 | for (i = 0; i < config->digital_pods; i++) { |
13f2b9d7 DJ |
472 | g_snprintf(command, sizeof(command), |
473 | (*config->scpi_dialect)[SCPI_CMD_GET_DIG_POD_STATE], | |
474 | i + 1); | |
475 | ||
23f43dff | 476 | if (sr_scpi_get_bool(scpi, command, |
13f2b9d7 DJ |
477 | &state->digital_pods[i]) != SR_OK) |
478 | return SR_ERR; | |
479 | } | |
480 | ||
481 | return SR_OK; | |
482 | } | |
483 | ||
14a2f74d DJ |
484 | SR_PRIV int hmo_update_sample_rate(const struct sr_dev_inst *sdi) |
485 | { | |
486 | struct dev_context *devc; | |
487 | struct scope_state *state; | |
329733d9 | 488 | const struct scope_config *config; |
14a2f74d DJ |
489 | |
490 | int tmp; | |
491 | unsigned int i; | |
492 | float tmp_float; | |
493 | gboolean channel_found; | |
494 | char tmp_str[MAX_COMMAND_SIZE]; | |
495 | char chan_name[20]; | |
496 | ||
497 | devc = sdi->priv; | |
498 | config = devc->model_config; | |
499 | state = devc->model_state; | |
500 | channel_found = FALSE; | |
501 | ||
0a1f7b09 | 502 | for (i = 0; i < config->analog_channels; i++) { |
14a2f74d DJ |
503 | if (state->analog_channels[i].state) { |
504 | g_snprintf(chan_name, sizeof(chan_name), "CHAN%d", i + 1); | |
505 | g_snprintf(tmp_str, sizeof(tmp_str), | |
506 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE], | |
507 | chan_name); | |
508 | channel_found = TRUE; | |
509 | break; | |
510 | } | |
511 | } | |
512 | ||
513 | if (!channel_found) { | |
514 | for (i = 0; i < config->digital_pods; i++) { | |
515 | if (state->digital_pods[i]) { | |
516 | g_snprintf(chan_name, sizeof(chan_name), "POD%d", i); | |
517 | g_snprintf(tmp_str, sizeof(tmp_str), | |
518 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE_LIVE], | |
519 | chan_name); | |
520 | channel_found = TRUE; | |
521 | break; | |
522 | } | |
523 | } | |
524 | } | |
525 | ||
526 | /* No channel is active, ask the instrument for the sample rate | |
527 | * in single shot mode */ | |
528 | if (!channel_found) { | |
c06c24d2 DJ |
529 | if (sr_scpi_get_float(sdi->conn, |
530 | (*config->scpi_dialect)[SCPI_CMD_GET_SAMPLE_RATE], | |
531 | &tmp_float) != SR_OK) | |
14a2f74d | 532 | return SR_ERR; |
c06c24d2 | 533 | |
14a2f74d DJ |
534 | state->sample_rate = tmp_float; |
535 | } else { | |
536 | if (sr_scpi_get_int(sdi->conn, tmp_str, &tmp) != SR_OK) | |
537 | return SR_ERR; | |
538 | state->sample_rate = tmp / (((float) (*config->timebases)[state->timebase][0] / | |
539 | (*config->timebases)[state->timebase][1]) * | |
540 | config->num_xdivs); | |
541 | } | |
542 | ||
543 | return SR_OK; | |
544 | } | |
545 | ||
719eff68 | 546 | SR_PRIV int hmo_scope_state_get(struct sr_dev_inst *sdi) |
13f2b9d7 DJ |
547 | { |
548 | struct dev_context *devc; | |
549 | struct scope_state *state; | |
329733d9 | 550 | const struct scope_config *config; |
8de2dc3b DJ |
551 | float tmp_float; |
552 | unsigned int i; | |
8cccbac8 | 553 | char *tmp_str; |
13f2b9d7 DJ |
554 | |
555 | devc = sdi->priv; | |
556 | config = devc->model_config; | |
557 | state = devc->model_state; | |
558 | ||
8de2dc3b DJ |
559 | sr_info("Fetching scope state"); |
560 | ||
13f2b9d7 DJ |
561 | if (analog_channel_state_get(sdi->conn, config, state) != SR_OK) |
562 | return SR_ERR; | |
563 | ||
564 | if (digital_channel_state_get(sdi->conn, config, state) != SR_OK) | |
565 | return SR_ERR; | |
566 | ||
89280b1a UH |
567 | if (sr_scpi_get_float(sdi->conn, |
568 | (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE], | |
8de2dc3b DJ |
569 | &tmp_float) != SR_OK) |
570 | return SR_ERR; | |
571 | ||
8cccbac8 SA |
572 | if (sr_scpi_get_string(sdi->conn, |
573 | (*config->scpi_dialect)[SCPI_CMD_GET_TIMEBASE], | |
574 | &tmp_str) != SR_OK) | |
575 | return SR_ERR; | |
576 | ||
53012da6 | 577 | if (array_float_get(tmp_str, ARRAY_AND_SIZE(timebases), &i) != SR_OK) { |
8cccbac8 | 578 | g_free(tmp_str); |
b4e31d2a | 579 | sr_err("Could not determine array index for time base."); |
13f2b9d7 | 580 | return SR_ERR; |
b4e31d2a | 581 | } |
e5b7eef7 | 582 | g_free(tmp_str); |
13f2b9d7 | 583 | |
8cccbac8 SA |
584 | state->timebase = i; |
585 | ||
89280b1a UH |
586 | if (sr_scpi_get_float(sdi->conn, |
587 | (*config->scpi_dialect)[SCPI_CMD_GET_HORIZ_TRIGGERPOS], | |
422a1c0d | 588 | &tmp_float) != SR_OK) |
13f2b9d7 | 589 | return SR_ERR; |
422a1c0d DJ |
590 | state->horiz_triggerpos = tmp_float / |
591 | (((double) (*config->timebases)[state->timebase][0] / | |
592 | (*config->timebases)[state->timebase][1]) * config->num_xdivs); | |
593 | state->horiz_triggerpos -= 0.5; | |
594 | state->horiz_triggerpos *= -1; | |
13f2b9d7 | 595 | |
89280b1a UH |
596 | if (scope_state_get_array_option(sdi->conn, |
597 | (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SOURCE], | |
692716f5 UH |
598 | config->trigger_sources, config->num_trigger_sources, |
599 | &state->trigger_source) != SR_OK) | |
13f2b9d7 DJ |
600 | return SR_ERR; |
601 | ||
89280b1a | 602 | if (scope_state_get_array_option(sdi->conn, |
692716f5 UH |
603 | (*config->scpi_dialect)[SCPI_CMD_GET_TRIGGER_SLOPE], |
604 | config->trigger_slopes, config->num_trigger_slopes, | |
605 | &state->trigger_slope) != SR_OK) | |
13f2b9d7 DJ |
606 | return SR_ERR; |
607 | ||
14a2f74d DJ |
608 | if (hmo_update_sample_rate(sdi) != SR_OK) |
609 | return SR_ERR; | |
610 | ||
8de2dc3b DJ |
611 | sr_info("Fetching finished."); |
612 | ||
13f2b9d7 DJ |
613 | scope_state_dump(config, state); |
614 | ||
615 | return SR_OK; | |
616 | } | |
617 | ||
329733d9 | 618 | static struct scope_state *scope_state_new(const struct scope_config *config) |
13f2b9d7 DJ |
619 | { |
620 | struct scope_state *state; | |
621 | ||
a95f142e UH |
622 | state = g_malloc0(sizeof(struct scope_state)); |
623 | state->analog_channels = g_malloc0_n(config->analog_channels, | |
624 | sizeof(struct analog_channel_state)); | |
625 | state->digital_channels = g_malloc0_n( | |
626 | config->digital_channels, sizeof(gboolean)); | |
627 | state->digital_pods = g_malloc0_n(config->digital_pods, | |
628 | sizeof(gboolean)); | |
13f2b9d7 DJ |
629 | |
630 | return state; | |
13f2b9d7 DJ |
631 | } |
632 | ||
719eff68 | 633 | SR_PRIV void hmo_scope_state_free(struct scope_state *state) |
13f2b9d7 DJ |
634 | { |
635 | g_free(state->analog_channels); | |
636 | g_free(state->digital_channels); | |
637 | g_free(state->digital_pods); | |
638 | g_free(state); | |
639 | } | |
640 | ||
641 | SR_PRIV int hmo_init_device(struct sr_dev_inst *sdi) | |
642 | { | |
643 | char tmp[25]; | |
644 | int model_index; | |
2d224dba | 645 | unsigned int i, j, group; |
ba7dd8bb | 646 | struct sr_channel *ch; |
13f2b9d7 DJ |
647 | struct dev_context *devc; |
648 | ||
649 | devc = sdi->priv; | |
650 | model_index = -1; | |
651 | ||
89280b1a | 652 | /* Find the exact model. */ |
13f2b9d7 DJ |
653 | for (i = 0; i < ARRAY_SIZE(scope_models); i++) { |
654 | for (j = 0; scope_models[i].name[j]; j++) { | |
655 | if (!strcmp(sdi->model, scope_models[i].name[j])) { | |
656 | model_index = i; | |
657 | break; | |
658 | } | |
659 | } | |
660 | if (model_index != -1) | |
661 | break; | |
662 | } | |
663 | ||
664 | if (model_index == -1) { | |
89280b1a | 665 | sr_dbg("Unsupported HMO device."); |
13f2b9d7 DJ |
666 | return SR_ERR_NA; |
667 | } | |
668 | ||
562b7ae5 SA |
669 | devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) * |
670 | scope_models[model_index].analog_channels); | |
13f2b9d7 | 671 | |
562b7ae5 SA |
672 | devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) * |
673 | scope_models[model_index].digital_pods); | |
13f2b9d7 | 674 | |
89280b1a | 675 | /* Add analog channels. */ |
13f2b9d7 | 676 | for (i = 0; i < scope_models[model_index].analog_channels; i++) { |
5e23fcab | 677 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, |
c368e6f3 | 678 | (*scope_models[model_index].analog_names)[i]); |
13f2b9d7 | 679 | |
562b7ae5 SA |
680 | devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); |
681 | ||
682 | devc->analog_groups[i]->name = g_strdup( | |
683 | (char *)(*scope_models[model_index].analog_names)[i]); | |
684 | devc->analog_groups[i]->channels = g_slist_append(NULL, ch); | |
13f2b9d7 | 685 | |
660e398f | 686 | sdi->channel_groups = g_slist_append(sdi->channel_groups, |
562b7ae5 | 687 | devc->analog_groups[i]); |
13f2b9d7 DJ |
688 | } |
689 | ||
660e398f | 690 | /* Add digital channel groups. */ |
0a1f7b09 | 691 | for (i = 0; i < scope_models[model_index].digital_pods; i++) { |
13f2b9d7 | 692 | g_snprintf(tmp, 25, "POD%d", i); |
562b7ae5 SA |
693 | |
694 | devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); | |
695 | ||
696 | devc->digital_groups[i]->name = g_strdup(tmp); | |
660e398f | 697 | sdi->channel_groups = g_slist_append(sdi->channel_groups, |
2d224dba | 698 | devc->digital_groups[i]); |
13f2b9d7 DJ |
699 | } |
700 | ||
89280b1a | 701 | /* Add digital channels. */ |
13f2b9d7 | 702 | for (i = 0; i < scope_models[model_index].digital_channels; i++) { |
5e23fcab | 703 | ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, |
c368e6f3 | 704 | (*scope_models[model_index].digital_names)[i]); |
13f2b9d7 | 705 | |
2d224dba GS |
706 | group = i / 8; |
707 | devc->digital_groups[group]->channels = g_slist_append( | |
708 | devc->digital_groups[group]->channels, ch); | |
13f2b9d7 DJ |
709 | } |
710 | ||
711 | devc->model_config = &scope_models[model_index]; | |
712 | devc->frame_limit = 0; | |
713 | ||
714 | if (!(devc->model_state = scope_state_new(devc->model_config))) | |
715 | return SR_ERR_MALLOC; | |
716 | ||
717 | return SR_OK; | |
718 | } | |
719 | ||
e06875b2 GS |
720 | /* Queue data of one channel group, for later submission. */ |
721 | SR_PRIV void hmo_queue_logic_data(struct dev_context *devc, | |
722 | size_t group, GByteArray *pod_data) | |
723 | { | |
724 | size_t size; | |
725 | GByteArray *store; | |
726 | uint8_t *logic_data; | |
727 | size_t idx, logic_step; | |
728 | ||
729 | /* | |
730 | * Upon first invocation, allocate the array which can hold the | |
731 | * combined logic data for all channels. Assume that each channel | |
732 | * will yield an identical number of samples per receive call. | |
733 | * | |
734 | * As a poor man's safety measure: (Silently) skip processing | |
735 | * for unexpected sample counts, and ignore samples for | |
736 | * unexpected channel groups. Don't bother with complicated | |
737 | * resize logic, considering that many models only support one | |
738 | * pod, and the most capable supported models have two pods of | |
739 | * identical size. We haven't yet seen any "odd" configuration. | |
740 | */ | |
741 | if (!devc->logic_data) { | |
742 | size = pod_data->len * devc->pod_count; | |
743 | store = g_byte_array_sized_new(size); | |
744 | memset(store->data, 0, size); | |
745 | store = g_byte_array_set_size(store, size); | |
746 | devc->logic_data = store; | |
747 | } else { | |
748 | store = devc->logic_data; | |
749 | size = store->len / devc->pod_count; | |
750 | if (size != pod_data->len) | |
751 | return; | |
752 | if (group >= devc->pod_count) | |
753 | return; | |
754 | } | |
755 | ||
756 | /* | |
757 | * Fold the data of the most recently received channel group into | |
758 | * the storage, where data resides for all channels combined. | |
759 | */ | |
760 | logic_data = store->data; | |
761 | logic_data += group; | |
762 | logic_step = devc->pod_count; | |
763 | for (idx = 0; idx < pod_data->len; idx++) { | |
764 | *logic_data = pod_data->data[idx]; | |
765 | logic_data += logic_step; | |
766 | } | |
767 | } | |
768 | ||
769 | /* Submit data for all channels, after the individual groups got collected. */ | |
770 | SR_PRIV void hmo_send_logic_packet(struct sr_dev_inst *sdi, | |
771 | struct dev_context *devc) | |
772 | { | |
773 | struct sr_datafeed_packet packet; | |
774 | struct sr_datafeed_logic logic; | |
775 | ||
776 | if (!devc->logic_data) | |
777 | return; | |
778 | ||
779 | logic.data = devc->logic_data->data; | |
780 | logic.length = devc->logic_data->len; | |
781 | logic.unitsize = devc->pod_count; | |
782 | ||
783 | packet.type = SR_DF_LOGIC; | |
784 | packet.payload = &logic; | |
785 | ||
786 | sr_session_send(sdi, &packet); | |
787 | } | |
788 | ||
789 | /* Undo previous resource allocation. */ | |
790 | SR_PRIV void hmo_cleanup_logic_data(struct dev_context *devc) | |
791 | { | |
792 | ||
793 | if (devc->logic_data) { | |
794 | g_byte_array_free(devc->logic_data, TRUE); | |
795 | devc->logic_data = NULL; | |
796 | } | |
797 | /* | |
798 | * Keep 'pod_count'! It's required when more frames will be | |
799 | * received, and does not harm when kept after acquisition. | |
800 | */ | |
801 | } | |
802 | ||
719eff68 | 803 | SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data) |
06a3e78a | 804 | { |
ba7dd8bb | 805 | struct sr_channel *ch; |
13f2b9d7 | 806 | struct sr_dev_inst *sdi; |
06a3e78a | 807 | struct dev_context *devc; |
401b83a1 | 808 | struct scope_state *state; |
13f2b9d7 | 809 | struct sr_datafeed_packet packet; |
401b83a1 SB |
810 | GByteArray *data; |
811 | struct sr_datafeed_analog analog; | |
812 | struct sr_analog_encoding encoding; | |
813 | struct sr_analog_meaning meaning; | |
814 | struct sr_analog_spec spec; | |
89280b1a | 815 | struct sr_datafeed_logic logic; |
e06875b2 | 816 | size_t group; |
06a3e78a DJ |
817 | |
818 | (void)fd; | |
f0729866 | 819 | (void)revents; |
06a3e78a | 820 | |
f62f595b MK |
821 | data = NULL; |
822 | ||
06a3e78a DJ |
823 | if (!(sdi = cb_data)) |
824 | return TRUE; | |
825 | ||
826 | if (!(devc = sdi->priv)) | |
827 | return TRUE; | |
828 | ||
f4f273ce SB |
829 | /* Although this is correct in general, the USBTMC libusb implementation |
830 | * currently does not generate an event prior to the first read. Often | |
831 | * it is ok to start reading just after the 50ms timeout. See bug #785. | |
dc89faea UH |
832 | if (revents != G_IO_IN) |
833 | return TRUE; | |
f4f273ce | 834 | */ |
13f2b9d7 | 835 | |
dc89faea | 836 | ch = devc->current_channel->data; |
401b83a1 | 837 | state = devc->model_state; |
13f2b9d7 | 838 | |
b23eb1d4 GS |
839 | /* |
840 | * Send "frame begin" packet upon reception of data for the | |
841 | * first enabled channel. | |
842 | */ | |
843 | if (devc->current_channel == devc->enabled_channels) { | |
844 | packet.type = SR_DF_FRAME_BEGIN; | |
845 | sr_session_send(sdi, &packet); | |
846 | } | |
847 | ||
848 | /* | |
849 | * Pass on the received data of the channel(s). | |
850 | */ | |
dc89faea UH |
851 | switch (ch->type) { |
852 | case SR_CHANNEL_ANALOG: | |
401b83a1 | 853 | if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) { |
dc89faea | 854 | if (data) |
401b83a1 | 855 | g_byte_array_free(data, TRUE); |
13f2b9d7 | 856 | |
dc89faea | 857 | return TRUE; |
13f2b9d7 DJ |
858 | } |
859 | ||
401b83a1 SB |
860 | packet.type = SR_DF_ANALOG; |
861 | ||
862 | analog.data = data->data; | |
863 | analog.num_samples = data->len / sizeof(float); | |
864 | analog.encoding = &encoding; | |
865 | analog.meaning = &meaning; | |
866 | analog.spec = &spec; | |
867 | ||
868 | encoding.unitsize = sizeof(float); | |
869 | encoding.is_signed = TRUE; | |
870 | encoding.is_float = TRUE; | |
65a6794e GS |
871 | #ifdef WORDS_BIGENDIAN |
872 | encoding.is_bigendian = TRUE; | |
873 | #else | |
d1ad8b10 | 874 | encoding.is_bigendian = FALSE; |
65a6794e | 875 | #endif |
7dcaddd3 UH |
876 | /* TODO: Use proper 'digits' value for this device (and its modes). */ |
877 | encoding.digits = 2; | |
401b83a1 SB |
878 | encoding.is_digits_decimal = FALSE; |
879 | encoding.scale.p = 1; | |
880 | encoding.scale.q = 1; | |
881 | encoding.offset.p = 0; | |
882 | encoding.offset.q = 1; | |
883 | if (state->analog_channels[ch->index].probe_unit == 'V') { | |
884 | meaning.mq = SR_MQ_VOLTAGE; | |
885 | meaning.unit = SR_UNIT_VOLT; | |
886 | } else { | |
887 | meaning.mq = SR_MQ_CURRENT; | |
888 | meaning.unit = SR_UNIT_AMPERE; | |
889 | } | |
890 | meaning.mqflags = 0; | |
891 | meaning.channels = g_slist_append(NULL, ch); | |
7dcaddd3 UH |
892 | /* TODO: Use proper 'digits' value for this device (and its modes). */ |
893 | spec.spec_digits = 2; | |
dc89faea | 894 | packet.payload = &analog; |
695dc859 | 895 | sr_session_send(sdi, &packet); |
401b83a1 SB |
896 | g_slist_free(meaning.channels); |
897 | g_byte_array_free(data, TRUE); | |
dc89faea UH |
898 | data = NULL; |
899 | break; | |
900 | case SR_CHANNEL_LOGIC: | |
401b83a1 | 901 | if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) { |
dc89faea UH |
902 | g_free(data); |
903 | return TRUE; | |
13f2b9d7 | 904 | } |
dc89faea | 905 | |
e06875b2 GS |
906 | /* |
907 | * If only data from the first pod is involved in the | |
908 | * acquisition, then the raw input bytes can get passed | |
909 | * forward for performance reasons. When the second pod | |
910 | * is involved (either alone, or in combination with the | |
911 | * first pod), then the received bytes need to be put | |
912 | * into memory in such a layout that all channel groups | |
913 | * get combined, and a unitsize larger than a single byte | |
914 | * applies. The "queue" logic transparently copes with | |
915 | * any such configuration. This works around the lack | |
916 | * of support for "meaning" to logic data, which is used | |
917 | * above for analog data. | |
918 | */ | |
919 | if (devc->pod_count == 1) { | |
920 | packet.type = SR_DF_LOGIC; | |
921 | logic.data = data->data; | |
922 | logic.length = data->len; | |
923 | logic.unitsize = 1; | |
924 | packet.payload = &logic; | |
925 | sr_session_send(sdi, &packet); | |
926 | } else { | |
927 | group = ch->index / 8; | |
928 | hmo_queue_logic_data(devc, group, data); | |
929 | } | |
dc89faea | 930 | |
401b83a1 | 931 | g_byte_array_free(data, TRUE); |
dc89faea UH |
932 | data = NULL; |
933 | break; | |
934 | default: | |
935 | sr_err("Invalid channel type."); | |
936 | break; | |
937 | } | |
938 | ||
b23eb1d4 GS |
939 | /* |
940 | * Advance to the next enabled channel. When data for all enabled | |
e06875b2 GS |
941 | * channels was received, then flush potentially queued logic data, |
942 | * and send the "frame end" packet. | |
b23eb1d4 | 943 | */ |
dc89faea UH |
944 | if (devc->current_channel->next) { |
945 | devc->current_channel = devc->current_channel->next; | |
946 | hmo_request_data(sdi); | |
b23eb1d4 GS |
947 | return TRUE; |
948 | } | |
e06875b2 GS |
949 | hmo_send_logic_packet(sdi, devc); |
950 | ||
951 | /* | |
952 | * Release the logic data storage after each frame. This copes | |
953 | * with sample counts that differ in length per frame. -- Is | |
954 | * this a real constraint when acquiring multiple frames with | |
955 | * identical device settings? | |
956 | */ | |
957 | hmo_cleanup_logic_data(devc); | |
958 | ||
b23eb1d4 GS |
959 | packet.type = SR_DF_FRAME_END; |
960 | sr_session_send(sdi, &packet); | |
961 | ||
962 | /* | |
963 | * End of frame was reached. Stop acquisition after the specified | |
964 | * number of frames, or continue reception by starting over at | |
965 | * the first enabled channel. | |
966 | */ | |
967 | if (++devc->num_frames == devc->frame_limit) { | |
d2f7c417 | 968 | sr_dev_acquisition_stop(sdi); |
e06875b2 | 969 | hmo_cleanup_logic_data(devc); |
dc89faea UH |
970 | } else { |
971 | devc->current_channel = devc->enabled_channels; | |
972 | hmo_request_data(sdi); | |
06a3e78a DJ |
973 | } |
974 | ||
975 | return TRUE; | |
976 | } |