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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.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 | ||
20 | #include <config.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <math.h> | |
24 | #include <glib.h> | |
25 | #include <libsigrok/libsigrok.h> | |
26 | #include "libsigrok-internal.h" | |
27 | ||
28 | #define LOG_PREFIX "output/analog" | |
29 | ||
30 | struct context { | |
31 | int num_enabled_channels; | |
32 | GPtrArray *channellist; | |
33 | int digits; | |
34 | float *fdata; | |
35 | }; | |
36 | ||
37 | enum { | |
38 | DIGITS_ALL, | |
39 | DIGITS_SPEC, | |
40 | }; | |
41 | ||
42 | static int init(struct sr_output *o, GHashTable *options) | |
43 | { | |
44 | struct context *ctx; | |
45 | struct sr_channel *ch; | |
46 | GSList *l; | |
47 | const char *s; | |
48 | ||
49 | if (!o || !o->sdi) | |
50 | return SR_ERR_ARG; | |
51 | ||
52 | o->priv = ctx = g_malloc0(sizeof(struct context)); | |
53 | s = g_variant_get_string(g_hash_table_lookup(options, "digits"), NULL); | |
54 | if (!strcmp(s, "all")) | |
55 | ctx->digits = DIGITS_ALL; | |
56 | else | |
57 | ctx->digits = DIGITS_SPEC; | |
58 | ||
59 | /* Get the number of channels and their names. */ | |
60 | ctx->channellist = g_ptr_array_new(); | |
61 | for (l = o->sdi->channels; l; l = l->next) { | |
62 | ch = l->data; | |
63 | if (!ch || !ch->enabled) | |
64 | continue; | |
65 | g_ptr_array_add(ctx->channellist, ch->name); | |
66 | ctx->num_enabled_channels++; | |
67 | } | |
68 | ctx->fdata = NULL; | |
69 | ||
70 | return SR_OK; | |
71 | } | |
72 | ||
73 | static void si_printf(float value, GString *out, const char *unitstr) | |
74 | { | |
75 | float v; | |
76 | ||
77 | if (signbit(value)) | |
78 | v = -(value); | |
79 | else | |
80 | v = value; | |
81 | ||
82 | if (v < 1e-12 || v > 1e+12) | |
83 | g_string_append_printf(out, "%f %s", value, unitstr); | |
84 | else if (v > 1e+9) | |
85 | g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr); | |
86 | else if (v > 1e+6) | |
87 | g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr); | |
88 | else if (v > 1e+3) | |
89 | g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr); | |
90 | else if (v < 1e-9) | |
91 | g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr); | |
92 | else if (v < 1e-6) | |
93 | g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr); | |
94 | else if (v < 1e-3) | |
95 | g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr); | |
96 | else | |
97 | g_string_append_printf(out, "%f %s", value, unitstr); | |
98 | ||
99 | } | |
100 | ||
101 | /* Please use the same order as in enum sr_unit (libsigrok.h). */ | |
102 | static void fancyprint(int unit, int mqflags, float value, GString *out) | |
103 | { | |
104 | switch (unit) { | |
105 | case SR_UNIT_VOLT: | |
106 | si_printf(value, out, "V"); | |
107 | break; | |
108 | case SR_UNIT_AMPERE: | |
109 | si_printf(value, out, "A"); | |
110 | break; | |
111 | case SR_UNIT_OHM: | |
112 | si_printf(value, out, ""); | |
113 | g_string_append_unichar(out, 0x2126); | |
114 | break; | |
115 | case SR_UNIT_FARAD: | |
116 | si_printf(value, out, "F"); | |
117 | break; | |
118 | case SR_UNIT_KELVIN: | |
119 | si_printf(value, out, "K"); | |
120 | break; | |
121 | case SR_UNIT_CELSIUS: | |
122 | si_printf(value, out, ""); | |
123 | g_string_append_unichar(out, 0x00b0); | |
124 | g_string_append_c(out, 'C'); | |
125 | break; | |
126 | case SR_UNIT_FAHRENHEIT: | |
127 | si_printf(value, out, ""); | |
128 | g_string_append_unichar(out, 0x00b0); | |
129 | g_string_append_c(out, 'F'); | |
130 | break; | |
131 | case SR_UNIT_HERTZ: | |
132 | si_printf(value, out, "Hz"); | |
133 | break; | |
134 | case SR_UNIT_PERCENTAGE: | |
135 | g_string_append_printf(out, "%f %%", value); | |
136 | break; | |
137 | case SR_UNIT_BOOLEAN: | |
138 | if (value > 0) | |
139 | g_string_append_printf(out, "TRUE"); | |
140 | else | |
141 | g_string_append_printf(out, "FALSE"); | |
142 | break; | |
143 | case SR_UNIT_SECOND: | |
144 | si_printf(value, out, "s"); | |
145 | break; | |
146 | case SR_UNIT_SIEMENS: | |
147 | si_printf(value, out, "S"); | |
148 | break; | |
149 | case SR_UNIT_DECIBEL_MW: | |
150 | si_printf(value, out, "dBu"); | |
151 | break; | |
152 | case SR_UNIT_DECIBEL_VOLT: | |
153 | si_printf(value, out, "dBV"); | |
154 | break; | |
155 | case SR_UNIT_UNITLESS: | |
156 | si_printf(value, out, ""); | |
157 | break; | |
158 | case SR_UNIT_DECIBEL_SPL: | |
159 | if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A) | |
160 | si_printf(value, out, "dB(A)"); | |
161 | else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C) | |
162 | si_printf(value, out, "dB(C)"); | |
163 | else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z) | |
164 | si_printf(value, out, "dB(Z)"); | |
165 | else | |
166 | /* No frequency weighting, or non-standard "flat" */ | |
167 | si_printf(value, out, "dB(SPL)"); | |
168 | if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S) | |
169 | g_string_append(out, " S"); | |
170 | else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F) | |
171 | g_string_append(out, " F"); | |
172 | if (mqflags & SR_MQFLAG_SPL_LAT) | |
173 | g_string_append(out, " LAT"); | |
174 | else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM) | |
175 | /* Not a standard function for SLMs, so this is | |
176 | * a made-up notation. */ | |
177 | g_string_append(out, " %oA"); | |
178 | break; | |
179 | case SR_UNIT_CONCENTRATION: | |
180 | g_string_append_printf(out, "%f ppm", value * (1000 * 1000)); | |
181 | break; | |
182 | case SR_UNIT_REVOLUTIONS_PER_MINUTE: | |
183 | si_printf(value, out, "RPM"); | |
184 | break; | |
185 | case SR_UNIT_VOLT_AMPERE: | |
186 | si_printf(value, out, "VA"); | |
187 | break; | |
188 | case SR_UNIT_WATT: | |
189 | si_printf(value, out, "W"); | |
190 | break; | |
191 | case SR_UNIT_WATT_HOUR: | |
192 | si_printf(value, out, "Wh"); | |
193 | break; | |
194 | case SR_UNIT_METER_SECOND: | |
195 | si_printf(value, out, "m/s"); | |
196 | break; | |
197 | case SR_UNIT_HECTOPASCAL: | |
198 | si_printf(value, out, "hPa"); | |
199 | break; | |
200 | case SR_UNIT_HUMIDITY_293K: | |
201 | si_printf(value, out, "%rF"); | |
202 | break; | |
203 | case SR_UNIT_DEGREE: | |
204 | si_printf(value, out, ""); | |
205 | g_string_append_unichar(out, 0x00b0); | |
206 | break; | |
207 | case SR_UNIT_HENRY: | |
208 | si_printf(value, out, "H"); | |
209 | break; | |
210 | case SR_UNIT_GRAM: | |
211 | si_printf(value, out, "g"); | |
212 | break; | |
213 | case SR_UNIT_CARAT: | |
214 | si_printf(value, out, "ct"); | |
215 | break; | |
216 | case SR_UNIT_OUNCE: | |
217 | si_printf(value, out, "oz"); | |
218 | break; | |
219 | case SR_UNIT_TROY_OUNCE: | |
220 | si_printf(value, out, "oz t"); | |
221 | break; | |
222 | case SR_UNIT_POUND: | |
223 | si_printf(value, out, "lb"); | |
224 | break; | |
225 | case SR_UNIT_PENNYWEIGHT: | |
226 | si_printf(value, out, "dwt"); | |
227 | break; | |
228 | case SR_UNIT_GRAIN: | |
229 | si_printf(value, out, "gr"); | |
230 | break; | |
231 | case SR_UNIT_TAEL: | |
232 | si_printf(value, out, "tael"); | |
233 | break; | |
234 | case SR_UNIT_MOMME: | |
235 | si_printf(value, out, "momme"); | |
236 | break; | |
237 | case SR_UNIT_TOLA: | |
238 | si_printf(value, out, "tola"); | |
239 | break; | |
240 | case SR_UNIT_PIECE: | |
241 | si_printf(value, out, "pcs"); | |
242 | break; | |
243 | default: | |
244 | si_printf(value, out, ""); | |
245 | break; | |
246 | } | |
247 | ||
248 | /* Please use the same order as in enum sr_mqflag (libsigrok.h). */ | |
249 | if (mqflags & SR_MQFLAG_AC) | |
250 | g_string_append_printf(out, " AC"); | |
251 | if (mqflags & SR_MQFLAG_DC) | |
252 | g_string_append_printf(out, " DC"); | |
253 | if (mqflags & SR_MQFLAG_RMS) | |
254 | g_string_append_printf(out, " RMS"); | |
255 | if (mqflags & SR_MQFLAG_DIODE) | |
256 | g_string_append_printf(out, " DIODE"); | |
257 | if (mqflags & SR_MQFLAG_HOLD) | |
258 | g_string_append_printf(out, " HOLD"); | |
259 | if (mqflags & SR_MQFLAG_MAX) | |
260 | g_string_append_printf(out, " MAX"); | |
261 | if (mqflags & SR_MQFLAG_MIN) | |
262 | g_string_append_printf(out, " MIN"); | |
263 | if (mqflags & SR_MQFLAG_AUTORANGE) | |
264 | g_string_append_printf(out, " AUTO"); | |
265 | if (mqflags & SR_MQFLAG_RELATIVE) | |
266 | g_string_append_printf(out, " REL"); | |
267 | /* Note: SR_MQFLAG_SPL_* is handled above. */ | |
268 | if (mqflags & SR_MQFLAG_DURATION) | |
269 | g_string_append_printf(out, " DURATION"); | |
270 | if (mqflags & SR_MQFLAG_AVG) | |
271 | g_string_append_printf(out, " AVG"); | |
272 | if (mqflags & SR_MQFLAG_REFERENCE) | |
273 | g_string_append_printf(out, " REF"); | |
274 | if (mqflags & SR_MQFLAG_UNSTABLE) | |
275 | g_string_append_printf(out, " UNSTABLE"); | |
276 | if (mqflags & SR_MQFLAG_FOUR_WIRE) | |
277 | g_string_append_printf(out, " 4-WIRE"); | |
278 | g_string_append_c(out, '\n'); | |
279 | } | |
280 | ||
281 | static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet, | |
282 | GString **out) | |
283 | { | |
284 | struct context *ctx; | |
285 | const struct sr_datafeed_analog_old *analog_old; | |
286 | const struct sr_datafeed_analog *analog; | |
287 | struct sr_channel *ch; | |
288 | GSList *l; | |
289 | float *fdata; | |
290 | unsigned int i; | |
291 | int num_channels, c, ret, si, digits; | |
292 | char *number, *suffix; | |
293 | ||
294 | *out = NULL; | |
295 | if (!o || !o->sdi) | |
296 | return SR_ERR_ARG; | |
297 | ctx = o->priv; | |
298 | ||
299 | switch (packet->type) { | |
300 | case SR_DF_FRAME_BEGIN: | |
301 | *out = g_string_new("FRAME-BEGIN\n"); | |
302 | break; | |
303 | case SR_DF_FRAME_END: | |
304 | *out = g_string_new("FRAME-END\n"); | |
305 | break; | |
306 | case SR_DF_ANALOG_OLD: | |
307 | analog_old = packet->payload; | |
308 | fdata = (float *)analog_old->data; | |
309 | *out = g_string_sized_new(512); | |
310 | num_channels = g_slist_length(analog_old->channels); | |
311 | for (si = 0; si < analog_old->num_samples; si++) { | |
312 | for (l = analog_old->channels, c = 0; l; l = l->next, c++) { | |
313 | ch = l->data; | |
314 | g_string_append_printf(*out, "%s: ", ch->name); | |
315 | fancyprint(analog_old->unit, analog_old->mqflags, | |
316 | fdata[si * num_channels + c], *out); | |
317 | } | |
318 | } | |
319 | break; | |
320 | case SR_DF_ANALOG: | |
321 | analog = packet->payload; | |
322 | num_channels = g_slist_length(analog->meaning->channels); | |
323 | if (!(fdata = g_try_realloc(ctx->fdata, | |
324 | analog->num_samples * num_channels * sizeof(float)))) | |
325 | return SR_ERR_MALLOC; | |
326 | ctx->fdata = fdata; | |
327 | if ((ret = sr_analog_to_float(analog, fdata)) != SR_OK) | |
328 | return ret; | |
329 | *out = g_string_sized_new(512); | |
330 | if (analog->encoding->is_digits_decimal) { | |
331 | if (ctx->digits == DIGITS_ALL) | |
332 | digits = analog->encoding->digits; | |
333 | else | |
334 | digits = analog->spec->spec_digits; | |
335 | } else { | |
336 | /* TODO we don't know how to print by number of bits yet. */ | |
337 | digits = 6; | |
338 | } | |
339 | sr_analog_unit_to_string(analog, &suffix); | |
340 | for (i = 0; i < analog->num_samples; i++) { | |
341 | for (l = analog->meaning->channels, c = 0; l; l = l->next, c++) { | |
342 | ch = l->data; | |
343 | g_string_append_printf(*out, "%s: ", ch->name); | |
344 | number = g_strdup_printf("%.*f", digits, | |
345 | fdata[i * num_channels + c]); | |
346 | g_string_append(*out, number); | |
347 | g_free(number); | |
348 | g_string_append(*out, " "); | |
349 | g_string_append(*out, suffix); | |
350 | g_string_append(*out, "\n"); | |
351 | } | |
352 | } | |
353 | g_free(suffix); | |
354 | break; | |
355 | } | |
356 | ||
357 | return SR_OK; | |
358 | } | |
359 | ||
360 | static struct sr_option options[] = { | |
361 | { "digits", "Digits", "Digits to show", NULL, NULL }, | |
362 | ALL_ZERO | |
363 | }; | |
364 | ||
365 | static const struct sr_option *get_options(void) | |
366 | { | |
367 | if (!options[0].def) { | |
368 | options[0].def = g_variant_ref_sink(g_variant_new_string("all")); | |
369 | options[0].values = g_slist_append(options[0].values, | |
370 | g_variant_ref_sink(g_variant_new_string("all"))); | |
371 | options[0].values = g_slist_append(options[0].values, | |
372 | g_variant_ref_sink(g_variant_new_string("spec"))); | |
373 | } | |
374 | ||
375 | return options; | |
376 | } | |
377 | ||
378 | static int cleanup(struct sr_output *o) | |
379 | { | |
380 | struct context *ctx; | |
381 | ||
382 | if (!o || !o->sdi) | |
383 | return SR_ERR_ARG; | |
384 | ctx = o->priv; | |
385 | ||
386 | g_ptr_array_free(ctx->channellist, 1); | |
387 | g_variant_unref(options[0].def); | |
388 | g_slist_free_full(options[0].values, (GDestroyNotify)g_variant_unref); | |
389 | g_free(ctx->fdata); | |
390 | g_free(ctx); | |
391 | o->priv = NULL; | |
392 | ||
393 | return SR_OK; | |
394 | } | |
395 | ||
396 | SR_PRIV struct sr_output_module output_analog = { | |
397 | .id = "analog", | |
398 | .name = "Analog", | |
399 | .desc = "Analog data and types", | |
400 | .exts = NULL, | |
401 | .flags = 0, | |
402 | .options = get_options, | |
403 | .init = init, | |
404 | .receive = receive, | |
405 | .cleanup = cleanup | |
406 | }; |