2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
24 #include <libsigrok/libsigrok.h>
25 #include "libsigrok-internal.h"
27 #define LOG_PREFIX "output/analog"
30 int num_enabled_channels;
31 GPtrArray *channellist;
40 static int init(struct sr_output *o, GHashTable *options)
43 struct sr_channel *ch;
50 o->priv = ctx = g_malloc0(sizeof(struct context));
51 s = g_variant_get_string(g_hash_table_lookup(options, "digits"), NULL);
52 if (!strcmp(s, "all"))
53 ctx->digits = DIGITS_ALL;
55 ctx->digits = DIGITS_SPEC;
57 /* Get the number of channels and their names. */
58 ctx->channellist = g_ptr_array_new();
59 for (l = o->sdi->channels; l; l = l->next) {
61 if (!ch || !ch->enabled)
63 g_ptr_array_add(ctx->channellist, ch->name);
64 ctx->num_enabled_channels++;
70 static void si_printf(float value, GString *out, char *unitstr)
79 if (v < 1e-12 || v > 1e+12)
80 g_string_append_printf(out, "%f %s", value, unitstr);
82 g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
84 g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
86 g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
88 g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
90 g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
92 g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
94 g_string_append_printf(out, "%f %s", value, unitstr);
98 /* Please use the same order as in enum sr_unit (libsigrok.h). */
99 static void fancyprint(int unit, int mqflags, float value, GString *out)
103 si_printf(value, out, "V");
106 si_printf(value, out, "A");
109 si_printf(value, out, "");
110 g_string_append_unichar(out, 0x2126);
113 si_printf(value, out, "F");
116 si_printf(value, out, "K");
118 case SR_UNIT_CELSIUS:
119 si_printf(value, out, "");
120 g_string_append_unichar(out, 0x00b0);
121 g_string_append_c(out, 'C');
123 case SR_UNIT_FAHRENHEIT:
124 si_printf(value, out, "");
125 g_string_append_unichar(out, 0x00b0);
126 g_string_append_c(out, 'F');
129 si_printf(value, out, "Hz");
131 case SR_UNIT_PERCENTAGE:
132 g_string_append_printf(out, "%f %%", value);
134 case SR_UNIT_BOOLEAN:
136 g_string_append_printf(out, "TRUE");
138 g_string_append_printf(out, "FALSE");
141 si_printf(value, out, "s");
143 case SR_UNIT_SIEMENS:
144 si_printf(value, out, "S");
146 case SR_UNIT_DECIBEL_MW:
147 si_printf(value, out, "dBu");
149 case SR_UNIT_DECIBEL_VOLT:
150 si_printf(value, out, "dBV");
152 case SR_UNIT_UNITLESS:
153 si_printf(value, out, "");
155 case SR_UNIT_DECIBEL_SPL:
156 if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
157 si_printf(value, out, "dB(A)");
158 else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
159 si_printf(value, out, "dB(C)");
160 else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
161 si_printf(value, out, "dB(Z)");
163 /* No frequency weighting, or non-standard "flat" */
164 si_printf(value, out, "dB(SPL)");
165 if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
166 g_string_append(out, " S");
167 else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
168 g_string_append(out, " F");
169 if (mqflags & SR_MQFLAG_SPL_LAT)
170 g_string_append(out, " LAT");
171 else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
172 /* Not a standard function for SLMs, so this is
173 * a made-up notation. */
174 g_string_append(out, " %oA");
176 case SR_UNIT_CONCENTRATION:
177 g_string_append_printf(out, "%f ppm", value * (1000 * 1000));
179 case SR_UNIT_REVOLUTIONS_PER_MINUTE:
180 si_printf(value, out, "RPM");
182 case SR_UNIT_VOLT_AMPERE:
183 si_printf(value, out, "VA");
186 si_printf(value, out, "W");
188 case SR_UNIT_WATT_HOUR:
189 si_printf(value, out, "Wh");
191 case SR_UNIT_METER_SECOND:
192 si_printf(value, out, "m/s");
194 case SR_UNIT_HECTOPASCAL:
195 si_printf(value, out, "hPa");
197 case SR_UNIT_HUMIDITY_293K:
198 si_printf(value, out, "%rF");
201 si_printf(value, out, "");
202 g_string_append_unichar(out, 0x00b0);
205 si_printf(value, out, "H");
208 si_printf(value, out, "g");
211 si_printf(value, out, "ct");
214 si_printf(value, out, "oz");
216 case SR_UNIT_TROY_OUNCE:
217 si_printf(value, out, "oz t");
220 si_printf(value, out, "lb");
222 case SR_UNIT_PENNYWEIGHT:
223 si_printf(value, out, "dwt");
226 si_printf(value, out, "gr");
229 si_printf(value, out, "tael");
232 si_printf(value, out, "momme");
235 si_printf(value, out, "tola");
238 si_printf(value, out, "pcs");
241 si_printf(value, out, "");
245 /* Please use the same order as in enum sr_mqflag (libsigrok.h). */
246 if (mqflags & SR_MQFLAG_AC)
247 g_string_append_printf(out, " AC");
248 if (mqflags & SR_MQFLAG_DC)
249 g_string_append_printf(out, " DC");
250 if (mqflags & SR_MQFLAG_RMS)
251 g_string_append_printf(out, " RMS");
252 if (mqflags & SR_MQFLAG_DIODE)
253 g_string_append_printf(out, " DIODE");
254 if (mqflags & SR_MQFLAG_HOLD)
255 g_string_append_printf(out, " HOLD");
256 if (mqflags & SR_MQFLAG_MAX)
257 g_string_append_printf(out, " MAX");
258 if (mqflags & SR_MQFLAG_MIN)
259 g_string_append_printf(out, " MIN");
260 if (mqflags & SR_MQFLAG_AUTORANGE)
261 g_string_append_printf(out, " AUTO");
262 if (mqflags & SR_MQFLAG_RELATIVE)
263 g_string_append_printf(out, " REL");
264 /* Note: SR_MQFLAG_SPL_* is handled above. */
265 if (mqflags & SR_MQFLAG_DURATION)
266 g_string_append_printf(out, " DURATION");
267 if (mqflags & SR_MQFLAG_AVG)
268 g_string_append_printf(out, " AVG");
269 if (mqflags & SR_MQFLAG_REFERENCE)
270 g_string_append_printf(out, " REF");
271 if (mqflags & SR_MQFLAG_UNSTABLE)
272 g_string_append_printf(out, " UNSTABLE");
273 g_string_append_c(out, '\n');
276 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
280 const struct sr_datafeed_analog *analog;
281 const struct sr_datafeed_analog2 *analog2;
282 struct sr_channel *ch;
286 int num_channels, c, ret, si, digits;
287 char *number, *suffix;
294 switch (packet->type) {
295 case SR_DF_FRAME_BEGIN:
296 *out = g_string_new("FRAME-BEGIN\n");
298 case SR_DF_FRAME_END:
299 *out = g_string_new("FRAME-END\n");
302 analog = packet->payload;
303 fdata = (float *)analog->data;
304 *out = g_string_sized_new(512);
305 num_channels = g_slist_length(analog->channels);
306 for (si = 0; si < analog->num_samples; si++) {
307 for (l = analog->channels, c = 0; l; l = l->next, c++) {
309 g_string_append_printf(*out, "%s: ", ch->name);
310 fancyprint(analog->unit, analog->mqflags,
311 fdata[si * num_channels + c], *out);
316 analog2 = packet->payload;
317 if (!(fdata = g_try_malloc(analog2->num_samples * sizeof(float))))
318 return SR_ERR_MALLOC;
319 if ((ret = sr_analog_to_float(analog2, fdata)) != SR_OK)
321 *out = g_string_sized_new(512);
322 if (analog2->encoding->is_digits_decimal) {
323 if (ctx->digits == DIGITS_ALL)
324 digits = analog2->encoding->digits;
326 digits = analog2->spec->spec_digits;
328 /* TODO we don't know how to print by number of bits yet. */
331 sr_analog_unit_to_string(analog2, &suffix);
332 num_channels = g_slist_length(analog2->meaning->channels);
333 for (i = 0; i < analog2->num_samples; i++) {
334 for (l = analog2->meaning->channels, c = 0; l; l = l->next, c++) {
336 g_string_append_printf(*out, "%s: ", ch->name);
337 sr_analog_float_to_string(fdata[i * num_channels + c],
339 g_string_append(*out, number);
341 g_string_append(*out, " ");
342 g_string_append(*out, suffix);
343 g_string_append(*out, "\n");
353 static int cleanup(struct sr_output *o)
361 g_ptr_array_free(ctx->channellist, 1);
368 static struct sr_option options[] = {
369 { "digits", "Digits", "Digits to show", NULL, NULL },
373 static const struct sr_option *get_options(void)
375 if (!options[0].def) {
376 options[0].def = g_variant_ref_sink(g_variant_new_string("all"));
377 options[0].values = g_slist_append(options[0].values,
378 g_variant_ref_sink(g_variant_new_string("all")));
379 options[0].values = g_slist_append(options[0].values,
380 g_variant_ref_sink(g_variant_new_string("spec")));
386 SR_PRIV struct sr_output_module output_analog = {
389 .desc = "Analog data and types",
392 .options = get_options,