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161a8a27 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
161a8a27 BV |
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 <stdlib.h> | |
21 | #include <string.h> | |
a944a84b | 22 | #include <math.h> |
161a8a27 | 23 | #include <glib.h> |
161a8a27 BV |
24 | #include "libsigrok.h" |
25 | #include "libsigrok-internal.h" | |
a944a84b | 26 | |
3544f848 | 27 | #define LOG_PREFIX "output/analog" |
161a8a27 BV |
28 | |
29 | struct context { | |
ba7dd8bb UH |
30 | int num_enabled_channels; |
31 | GPtrArray *channellist; | |
161a8a27 BV |
32 | }; |
33 | ||
a755b0e1 | 34 | static int init(struct sr_output *o, GHashTable *options) |
161a8a27 BV |
35 | { |
36 | struct context *ctx; | |
ba7dd8bb | 37 | struct sr_channel *ch; |
161a8a27 BV |
38 | GSList *l; |
39 | ||
a755b0e1 | 40 | (void)options; |
a944a84b | 41 | |
161a8a27 BV |
42 | if (!o || !o->sdi) |
43 | return SR_ERR_ARG; | |
44 | ||
886a52b6 | 45 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { |
a944a84b | 46 | sr_err("Output module context malloc failed."); |
161a8a27 | 47 | return SR_ERR_MALLOC; |
886a52b6 | 48 | } |
d686c5ec | 49 | o->priv = ctx; |
161a8a27 | 50 | |
ba7dd8bb UH |
51 | /* Get the number of channels and their names. */ |
52 | ctx->channellist = g_ptr_array_new(); | |
53 | for (l = o->sdi->channels; l; l = l->next) { | |
54 | ch = l->data; | |
55 | if (!ch || !ch->enabled) | |
161a8a27 | 56 | continue; |
ba7dd8bb UH |
57 | g_ptr_array_add(ctx->channellist, ch->name); |
58 | ctx->num_enabled_channels++; | |
161a8a27 BV |
59 | } |
60 | ||
161a8a27 BV |
61 | return SR_OK; |
62 | } | |
63 | ||
64 | static void si_printf(float value, GString *out, char *unitstr) | |
65 | { | |
d713e561 | 66 | float v; |
161a8a27 | 67 | |
d713e561 BV |
68 | if (signbit(value)) |
69 | v = -(value); | |
70 | else | |
71 | v = value; | |
72 | ||
73 | if (v < 1e-12 || v > 1e+12) | |
74 | g_string_append_printf(out, "%f %s", value, unitstr); | |
75 | else if (v > 1e+9) | |
76 | g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr); | |
77 | else if (v > 1e+6) | |
78 | g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr); | |
79 | else if (v > 1e+3) | |
80 | g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr); | |
81 | else if (v < 1e-9) | |
82 | g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr); | |
83 | else if (v < 1e-6) | |
84 | g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr); | |
85 | else if (v < 1e-3) | |
86 | g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr); | |
161a8a27 BV |
87 | else |
88 | g_string_append_printf(out, "%f %s", value, unitstr); | |
89 | ||
90 | } | |
91 | ||
92 | static void fancyprint(int unit, int mqflags, float value, GString *out) | |
93 | { | |
161a8a27 | 94 | switch (unit) { |
06c45a66 UH |
95 | case SR_UNIT_VOLT: |
96 | si_printf(value, out, "V"); | |
97 | break; | |
98 | case SR_UNIT_AMPERE: | |
99 | si_printf(value, out, "A"); | |
100 | break; | |
101 | case SR_UNIT_OHM: | |
102 | si_printf(value, out, ""); | |
103 | g_string_append_unichar(out, 0x2126); | |
104 | break; | |
105 | case SR_UNIT_FARAD: | |
106 | si_printf(value, out, "F"); | |
107 | break; | |
02c7c482 JH |
108 | case SR_UNIT_HENRY: |
109 | si_printf(value, out, "H"); | |
110 | break; | |
06c45a66 UH |
111 | case SR_UNIT_KELVIN: |
112 | si_printf(value, out, "K"); | |
113 | break; | |
114 | case SR_UNIT_CELSIUS: | |
115 | si_printf(value, out, ""); | |
116 | g_string_append_unichar(out, 0x00b0); | |
117 | g_string_append_c(out, 'C'); | |
118 | break; | |
119 | case SR_UNIT_FAHRENHEIT: | |
120 | si_printf(value, out, ""); | |
121 | g_string_append_unichar(out, 0x00b0); | |
122 | g_string_append_c(out, 'F'); | |
123 | break; | |
124 | case SR_UNIT_HERTZ: | |
125 | si_printf(value, out, "Hz"); | |
126 | break; | |
127 | case SR_UNIT_PERCENTAGE: | |
641d8f27 | 128 | g_string_append_printf(out, "%f %%", value); |
06c45a66 UH |
129 | break; |
130 | case SR_UNIT_BOOLEAN: | |
131 | if (value > 0) | |
132 | g_string_append_printf(out, "TRUE"); | |
133 | else | |
134 | g_string_append_printf(out, "FALSE"); | |
135 | break; | |
136 | case SR_UNIT_SECOND: | |
137 | si_printf(value, out, "s"); | |
138 | break; | |
139 | case SR_UNIT_SIEMENS: | |
140 | si_printf(value, out, "S"); | |
141 | break; | |
142 | case SR_UNIT_DECIBEL_MW: | |
143 | si_printf(value, out, "dBu"); | |
144 | break; | |
145 | case SR_UNIT_DECIBEL_VOLT: | |
146 | si_printf(value, out, "dBV"); | |
147 | break; | |
148 | case SR_UNIT_DECIBEL_SPL: | |
149 | if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A) | |
150 | si_printf(value, out, "dB(A)"); | |
151 | else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C) | |
152 | si_printf(value, out, "dB(C)"); | |
153 | else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z) | |
154 | si_printf(value, out, "dB(Z)"); | |
155 | else | |
156 | /* No frequency weighting, or non-standard "flat" */ | |
157 | si_printf(value, out, "dB(SPL)"); | |
158 | if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S) | |
159 | g_string_append(out, " S"); | |
160 | else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F) | |
161 | g_string_append(out, " F"); | |
162 | if (mqflags & SR_MQFLAG_SPL_LAT) | |
163 | g_string_append(out, " LAT"); | |
164 | else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM) | |
165 | /* Not a standard function for SLMs, so this is | |
166 | * a made-up notation. */ | |
167 | g_string_append(out, " %oA"); | |
168 | break; | |
169 | case SR_UNIT_CONCENTRATION: | |
170 | g_string_append_printf(out, "%f ppm", value * 1000000); | |
171 | break; | |
87532f23 AJ |
172 | case SR_UNIT_REVOLUTIONS_PER_MINUTE: |
173 | si_printf(value, out, "RPM"); | |
d69d2642 | 174 | break; |
45315d04 AJ |
175 | case SR_UNIT_VOLT_AMPERE: |
176 | si_printf(value, out, "VA"); | |
177 | break; | |
178 | case SR_UNIT_WATT: | |
179 | si_printf(value, out, "W"); | |
180 | break; | |
181 | case SR_UNIT_WATT_HOUR: | |
182 | si_printf(value, out, "Wh"); | |
87532f23 | 183 | break; |
543d041d BV |
184 | case SR_UNIT_METER_SECOND: |
185 | si_printf(value, out, "m/s"); | |
186 | break; | |
187 | case SR_UNIT_HECTOPASCAL: | |
188 | si_printf(value, out, "hPa"); | |
189 | break; | |
190 | case SR_UNIT_HUMIDITY_293K: | |
191 | si_printf(value, out, "%rF"); | |
192 | break; | |
02c7c482 JH |
193 | case SR_UNIT_DEGREE: |
194 | si_printf(value, out, ""); | |
195 | g_string_append_unichar(out, 0x00b0); | |
196 | break; | |
06c45a66 UH |
197 | default: |
198 | si_printf(value, out, ""); | |
199 | break; | |
161a8a27 | 200 | } |
e6523173 UH |
201 | |
202 | if (mqflags & SR_MQFLAG_AC) | |
161a8a27 | 203 | g_string_append_printf(out, " AC"); |
e6523173 | 204 | if (mqflags & SR_MQFLAG_DC) |
161a8a27 | 205 | g_string_append_printf(out, " DC"); |
e6523173 UH |
206 | if (mqflags & SR_MQFLAG_RMS) |
207 | g_string_append_printf(out, " RMS"); | |
208 | if (mqflags & SR_MQFLAG_DIODE) | |
209 | g_string_append_printf(out, " DIODE"); | |
210 | if (mqflags & SR_MQFLAG_HOLD) | |
211 | g_string_append_printf(out, " HOLD"); | |
212 | if (mqflags & SR_MQFLAG_MAX) | |
213 | g_string_append_printf(out, " MAX"); | |
214 | if (mqflags & SR_MQFLAG_MIN) | |
215 | g_string_append_printf(out, " MIN"); | |
216 | if (mqflags & SR_MQFLAG_AUTORANGE) | |
217 | g_string_append_printf(out, " AUTO"); | |
218 | if (mqflags & SR_MQFLAG_RELATIVE) | |
219 | g_string_append_printf(out, " REL"); | |
f5027ca4 AJ |
220 | if (mqflags & SR_MQFLAG_AVG) |
221 | g_string_append_printf(out, " AVG"); | |
02c7c482 JH |
222 | if (mqflags & SR_MQFLAG_REFERENCE) |
223 | g_string_append_printf(out, " REF"); | |
161a8a27 | 224 | g_string_append_c(out, '\n'); |
161a8a27 BV |
225 | } |
226 | ||
a755b0e1 | 227 | static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet, |
dba3e682 | 228 | GString **out) |
161a8a27 | 229 | { |
69e19dd7 | 230 | const struct sr_datafeed_analog *analog; |
e02e9e6a | 231 | const struct sr_datafeed_analog2 *analog2; |
ba7dd8bb | 232 | struct sr_channel *ch; |
69e19dd7 | 233 | GSList *l; |
e02e9e6a BV |
234 | float *fdata; |
235 | unsigned int i; | |
236 | int num_channels, c, ret, si; | |
161a8a27 | 237 | |
17f63de6 | 238 | *out = NULL; |
161a8a27 | 239 | if (!o || !o->sdi) |
17f63de6 | 240 | return SR_ERR_ARG; |
161a8a27 | 241 | |
161a8a27 | 242 | switch (packet->type) { |
161a8a27 | 243 | case SR_DF_FRAME_BEGIN: |
17f63de6 | 244 | *out = g_string_new("FRAME-BEGIN\n"); |
161a8a27 BV |
245 | break; |
246 | case SR_DF_FRAME_END: | |
17f63de6 | 247 | *out = g_string_new("FRAME-END\n"); |
161a8a27 BV |
248 | break; |
249 | case SR_DF_ANALOG: | |
250 | analog = packet->payload; | |
e02e9e6a | 251 | fdata = (float *)analog->data; |
17f63de6 | 252 | *out = g_string_sized_new(512); |
6e6babb9 | 253 | num_channels = g_slist_length(analog->channels); |
e02e9e6a | 254 | for (si = 0; si < analog->num_samples; si++) { |
6e6babb9 | 255 | for (l = analog->channels, c = 0; l; l = l->next, c++) { |
ba7dd8bb UH |
256 | ch = l->data; |
257 | g_string_append_printf(*out, "%s: ", ch->name); | |
161a8a27 | 258 | fancyprint(analog->unit, analog->mqflags, |
e02e9e6a BV |
259 | fdata[si * num_channels + c], *out); |
260 | } | |
261 | } | |
262 | break; | |
263 | case SR_DF_ANALOG2: | |
264 | analog2 = packet->payload; | |
265 | if (!(fdata = g_try_malloc(analog2->num_samples * sizeof(float)))) | |
266 | return SR_ERR_MALLOC; | |
267 | if ((ret = sr_analog_to_float(analog2, fdata)) != SR_OK) | |
268 | return ret; | |
269 | *out = g_string_sized_new(512); | |
270 | num_channels = g_slist_length(analog2->meaning->channels); | |
271 | for (i = 0; i < analog2->num_samples; i++) { | |
272 | for (l = analog2->meaning->channels, c = 0; l; l = l->next, c++) { | |
273 | ch = l->data; | |
274 | g_string_append_printf(*out, "%s: ", ch->name); | |
275 | fancyprint(analog2->meaning->unit, analog2->meaning->mqflags, | |
6e6babb9 | 276 | fdata[i * num_channels + c], *out); |
161a8a27 BV |
277 | } |
278 | } | |
279 | break; | |
280 | } | |
281 | ||
17f63de6 | 282 | return SR_OK; |
161a8a27 BV |
283 | } |
284 | ||
285 | static int cleanup(struct sr_output *o) | |
286 | { | |
287 | struct context *ctx; | |
288 | ||
289 | if (!o || !o->sdi) | |
290 | return SR_ERR_ARG; | |
d686c5ec | 291 | ctx = o->priv; |
161a8a27 | 292 | |
ba7dd8bb | 293 | g_ptr_array_free(ctx->channellist, 1); |
161a8a27 | 294 | g_free(ctx); |
d686c5ec | 295 | o->priv = NULL; |
161a8a27 BV |
296 | |
297 | return SR_OK; | |
298 | } | |
299 | ||
a755b0e1 | 300 | SR_PRIV struct sr_output_module output_analog = { |
161a8a27 | 301 | .id = "analog", |
a755b0e1 BV |
302 | .name = "Analog", |
303 | .desc = "Analog data and types", | |
304 | .options = NULL, | |
161a8a27 | 305 | .init = init, |
17f63de6 | 306 | .receive = receive, |
161a8a27 BV |
307 | .cleanup = cleanup |
308 | }; |