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e2ad47b5 UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
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 2 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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <glib.h> | |
545f9786 | 24 | #include "config.h" /* Needed for PACKAGE_STRING and others. */ |
45c59c8b BV |
25 | #include "libsigrok.h" |
26 | #include "libsigrok-internal.h" | |
e2ad47b5 UH |
27 | |
28 | struct context { | |
afc8e4de UH |
29 | unsigned int num_enabled_probes; |
30 | unsigned int unitsize; | |
9688b443 | 31 | char *probelist[SR_MAX_NUM_PROBES + 1]; |
e2ad47b5 UH |
32 | char *header; |
33 | }; | |
34 | ||
9688b443 UH |
35 | #define MAX_HEADER_LEN \ |
36 | (1024 + (SR_MAX_NUM_PROBES * (SR_MAX_PROBENAME_LEN + 10))) | |
37 | ||
d078d2e5 | 38 | static const char *gnuplot_header = "\ |
e2ad47b5 UH |
39 | # Sample data in space-separated columns format usable by gnuplot\n\ |
40 | #\n\ | |
5cca9adb | 41 | # Generated by: %s on %s%s\ |
d4ae8eaa | 42 | # Period: %s\n\ |
114fb93f UH |
43 | #\n\ |
44 | # Column\tProbe\n\ | |
45 | # -------------------------------------\ | |
46 | ----------------------------------------\n\ | |
47 | # 0\t\tSample counter (for internal gnuplot purposes)\n%s\n"; | |
e2ad47b5 | 48 | |
d078d2e5 | 49 | static const char *gnuplot_header_comment = "\ |
7aae7462 BV |
50 | # Comment: Acquisition with %d/%d probes at %s\n"; |
51 | ||
f50f3f40 | 52 | static int init(struct sr_output *o) |
e2ad47b5 | 53 | { |
e2ad47b5 | 54 | struct context *ctx; |
1afe8989 | 55 | struct sr_probe *probe; |
e2ad47b5 | 56 | GSList *l; |
5c3c1241 | 57 | uint64_t *samplerate; |
afc8e4de UH |
58 | unsigned int i; |
59 | int b, num_probes; | |
d4ae8eaa | 60 | char *c, *frequency_s; |
7aae7462 | 61 | char wbuf[1000], comment[128]; |
5cca9adb | 62 | time_t t; |
e2ad47b5 | 63 | |
20ebd1fe | 64 | if (!o) { |
133a37bf | 65 | sr_err("gnuplot out: %s: o was NULL", __func__); |
20ebd1fe UH |
66 | return SR_ERR_ARG; |
67 | } | |
68 | ||
5c3c1241 BV |
69 | if (!o->sdi) { |
70 | sr_err("gnuplot out: %s: o->sdi was NULL", __func__); | |
20ebd1fe UH |
71 | return SR_ERR_ARG; |
72 | } | |
73 | ||
5c3c1241 BV |
74 | if (!o->sdi->driver) { |
75 | sr_err("gnuplot out: %s: o->sdi->driver was NULL", __func__); | |
20ebd1fe UH |
76 | return SR_ERR_ARG; |
77 | } | |
78 | ||
133a37bf UH |
79 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { |
80 | sr_err("gnuplot out: %s: ctx malloc failed", __func__); | |
e46b8fb1 | 81 | return SR_ERR_MALLOC; |
20ebd1fe | 82 | } |
a821069b | 83 | |
133a37bf UH |
84 | if (!(ctx->header = g_try_malloc0(MAX_HEADER_LEN + 1))) { |
85 | sr_err("gnuplot out: %s: ctx->header malloc failed", __func__); | |
86 | g_free(ctx); | |
e46b8fb1 | 87 | return SR_ERR_MALLOC; |
d4ae8eaa BV |
88 | } |
89 | ||
e2ad47b5 UH |
90 | o->internal = ctx; |
91 | ctx->num_enabled_probes = 0; | |
5c3c1241 | 92 | for (l = o->sdi->probes; l; l = l->next) { |
20ebd1fe | 93 | probe = l->data; /* TODO: Error checks. */ |
757b8c62 UH |
94 | if (!probe->enabled) |
95 | continue; | |
96 | ctx->probelist[ctx->num_enabled_probes++] = probe->name; | |
e2ad47b5 | 97 | } |
e2ad47b5 UH |
98 | ctx->probelist[ctx->num_enabled_probes] = 0; |
99 | ctx->unitsize = (ctx->num_enabled_probes + 7) / 8; | |
100 | ||
5c3c1241 | 101 | num_probes = g_slist_length(o->sdi->probes); |
a821069b | 102 | comment[0] = '\0'; |
5c3c1241 BV |
103 | if (sr_dev_has_hwcap(o->sdi, SR_HWCAP_SAMPLERATE)) { |
104 | o->sdi->driver->info_get(SR_DI_CUR_SAMPLERATE, | |
105 | (const void **)&samplerate, o->sdi); | |
106 | if (!(frequency_s = sr_samplerate_string(*samplerate))) { | |
133a37bf UH |
107 | sr_err("gnuplot out: %s: sr_samplerate_string failed", |
108 | __func__); | |
109 | g_free(ctx->header); | |
110 | g_free(ctx); | |
e46b8fb1 | 111 | return SR_ERR; |
a821069b UH |
112 | } |
113 | snprintf(comment, 127, gnuplot_header_comment, | |
d4ae8eaa | 114 | ctx->num_enabled_probes, num_probes, frequency_s); |
133a37bf | 115 | g_free(frequency_s); |
7aae7462 | 116 | } |
e2ad47b5 UH |
117 | |
118 | /* Columns / channels */ | |
119 | wbuf[0] = '\0'; | |
120 | for (i = 0; i < ctx->num_enabled_probes; i++) { | |
054e6709 | 121 | c = (char *)&wbuf + strlen((const char *)&wbuf); |
114fb93f | 122 | sprintf(c, "# %d\t\t%s\n", i + 1, ctx->probelist[i]); |
e2ad47b5 UH |
123 | } |
124 | ||
5c3c1241 | 125 | if (!(frequency_s = sr_period_string(*samplerate))) { |
133a37bf UH |
126 | sr_err("gnuplot out: %s: sr_period_string failed", __func__); |
127 | g_free(ctx->header); | |
128 | g_free(ctx); | |
e46b8fb1 | 129 | return SR_ERR; |
d4ae8eaa | 130 | } |
20ebd1fe | 131 | |
5cca9adb | 132 | t = time(NULL); |
e2ad47b5 | 133 | b = snprintf(ctx->header, MAX_HEADER_LEN, gnuplot_header, |
d4ae8eaa | 134 | PACKAGE_STRING, ctime(&t), comment, frequency_s, |
5cca9adb | 135 | (char *)&wbuf); |
133a37bf | 136 | g_free(frequency_s); |
e2ad47b5 | 137 | |
d4ae8eaa | 138 | if (b < 0) { |
133a37bf UH |
139 | sr_err("gnuplot out: %s: sprintf failed", __func__); |
140 | g_free(ctx->header); | |
141 | g_free(ctx); | |
e46b8fb1 | 142 | return SR_ERR; |
d4ae8eaa | 143 | } |
e2ad47b5 UH |
144 | |
145 | return 0; | |
146 | } | |
147 | ||
054e6709 | 148 | static int event(struct sr_output *o, int event_type, uint8_t **data_out, |
e2ad47b5 UH |
149 | uint64_t *length_out) |
150 | { | |
20ebd1fe | 151 | if (!o) { |
133a37bf | 152 | sr_err("gnuplot out: %s: o was NULL", __func__); |
20ebd1fe UH |
153 | return SR_ERR_ARG; |
154 | } | |
155 | ||
156 | if (!data_out) { | |
133a37bf | 157 | sr_err("gnuplot out: %s: data_out was NULL", __func__); |
20ebd1fe UH |
158 | return SR_ERR_ARG; |
159 | } | |
160 | ||
161 | if (!length_out) { | |
133a37bf | 162 | sr_err("gnuplot out: %s: length_out was NULL", __func__); |
20ebd1fe UH |
163 | return SR_ERR_ARG; |
164 | } | |
165 | ||
99c1fc59 | 166 | switch (event_type) { |
5a2326a7 | 167 | case SR_DF_TRIGGER: |
20ebd1fe | 168 | /* TODO: Can a trigger mark be in a gnuplot data file? */ |
e2ad47b5 | 169 | break; |
5a2326a7 | 170 | case SR_DF_END: |
133a37bf | 171 | g_free(o->internal); |
e2ad47b5 UH |
172 | o->internal = NULL; |
173 | break; | |
20ebd1fe | 174 | default: |
133a37bf UH |
175 | sr_err("gnuplot out: %s: unsupported event type: %d", |
176 | __func__, event_type); | |
20ebd1fe | 177 | break; |
e2ad47b5 UH |
178 | } |
179 | ||
9ab95e54 BV |
180 | *data_out = NULL; |
181 | *length_out = 0; | |
182 | ||
e46b8fb1 | 183 | return SR_OK; |
e2ad47b5 UH |
184 | } |
185 | ||
054e6709 UH |
186 | static int data(struct sr_output *o, const uint8_t *data_in, |
187 | uint64_t length_in, uint8_t **data_out, uint64_t *length_out) | |
e2ad47b5 UH |
188 | { |
189 | struct context *ctx; | |
d4ae8eaa | 190 | unsigned int max_linelen, outsize, p, curbit, i; |
086eac7c | 191 | uint64_t sample; |
50959ddc | 192 | static uint64_t samplecount = 0, old_sample = 0; |
054e6709 | 193 | uint8_t *outbuf, *c; |
e2ad47b5 | 194 | |
20ebd1fe | 195 | if (!o) { |
133a37bf | 196 | sr_err("gnuplot out: %s: o was NULL", __func__); |
20ebd1fe UH |
197 | return SR_ERR_ARG; |
198 | } | |
199 | ||
200 | if (!o->internal) { | |
133a37bf | 201 | sr_err("gnuplot out: %s: o->internal was NULL", __func__); |
20ebd1fe UH |
202 | return SR_ERR_ARG; |
203 | } | |
204 | ||
205 | if (!data_in) { | |
133a37bf | 206 | sr_err("gnuplot out: %s: data_in was NULL", __func__); |
20ebd1fe UH |
207 | return SR_ERR_ARG; |
208 | } | |
209 | ||
210 | if (!data_out) { | |
133a37bf | 211 | sr_err("gnuplot out: %s: data_out was NULL", __func__); |
20ebd1fe UH |
212 | return SR_ERR_ARG; |
213 | } | |
214 | ||
215 | if (!length_out) { | |
133a37bf | 216 | sr_err("gnuplot out: %s: length_out was NULL", __func__); |
20ebd1fe UH |
217 | return SR_ERR_ARG; |
218 | } | |
219 | ||
e2ad47b5 | 220 | ctx = o->internal; |
d4ae8eaa BV |
221 | max_linelen = 16 + ctx->num_enabled_probes * 2; |
222 | outsize = length_in / ctx->unitsize * max_linelen; | |
e273a904 | 223 | if (ctx->header) |
d4ae8eaa | 224 | outsize += strlen(ctx->header); |
a821069b | 225 | |
133a37bf UH |
226 | if (!(outbuf = g_try_malloc0(outsize))) { |
227 | sr_err("gnuplot out: %s: outbuf malloc failed", __func__); | |
e46b8fb1 | 228 | return SR_ERR_MALLOC; |
20ebd1fe | 229 | } |
a821069b UH |
230 | |
231 | outbuf[0] = '\0'; | |
e2ad47b5 UH |
232 | if (ctx->header) { |
233 | /* The header is still here, this must be the first packet. */ | |
054e6709 | 234 | strncpy((char *)outbuf, ctx->header, outsize); |
133a37bf | 235 | g_free(ctx->header); |
e2ad47b5 | 236 | ctx->header = NULL; |
e2ad47b5 UH |
237 | } |
238 | ||
607b58de | 239 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { |
50959ddc | 240 | |
607b58de | 241 | memcpy(&sample, data_in + i, ctx->unitsize); |
e2ad47b5 | 242 | |
50959ddc UH |
243 | /* |
244 | * Don't output the same samples multiple times. However, make | |
245 | * sure to output at least the first and last sample. | |
246 | */ | |
247 | if (samplecount++ != 0 && sample == old_sample) { | |
248 | if (i != (length_in - ctx->unitsize)) | |
249 | continue; | |
250 | } | |
251 | old_sample = sample; | |
252 | ||
e2ad47b5 | 253 | /* The first column is a counter (needed for gnuplot). */ |
054e6709 UH |
254 | c = outbuf + strlen((const char *)outbuf); |
255 | sprintf((char *)c, "%" PRIu64 "\t", samplecount++); | |
e2ad47b5 UH |
256 | |
257 | /* The next columns are the values of all channels. */ | |
258 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
fbe2f794 | 259 | curbit = (sample & ((uint64_t) (1 << p))) >> p; |
054e6709 UH |
260 | c = outbuf + strlen((const char *)outbuf); |
261 | sprintf((char *)c, "%d ", curbit); | |
e2ad47b5 UH |
262 | } |
263 | ||
054e6709 UH |
264 | c = outbuf + strlen((const char *)outbuf); |
265 | sprintf((char *)c, "\n"); | |
e2ad47b5 UH |
266 | } |
267 | ||
268 | *data_out = outbuf; | |
054e6709 | 269 | *length_out = strlen((const char *)outbuf); |
e2ad47b5 | 270 | |
e46b8fb1 | 271 | return SR_OK; |
e2ad47b5 UH |
272 | } |
273 | ||
7c1d391c | 274 | SR_PRIV struct sr_output_format output_gnuplot = { |
cdb3573c | 275 | .id = "gnuplot", |
d494a4aa UH |
276 | .description = "Gnuplot", |
277 | .df_type = SR_DF_LOGIC, | |
278 | .init = init, | |
279 | .data = data, | |
280 | .event = event, | |
77b45442 UH |
281 | }; |
282 | ||
283 | /* Temporarily disabled. */ | |
284 | #if 0 | |
f50f3f40 | 285 | static int analog_init(struct sr_output *o) |
81bbdf6a DR |
286 | { |
287 | struct context *ctx; | |
1afe8989 | 288 | struct sr_probe *probe; |
81bbdf6a DR |
289 | GSList *l; |
290 | uint64_t samplerate; | |
291 | unsigned int i; | |
292 | int b, num_probes; | |
293 | char *c, *frequency_s; | |
294 | char wbuf[1000], comment[128]; | |
295 | time_t t; | |
296 | ||
133a37bf UH |
297 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { |
298 | sr_err("gnuplot out: %s: ctx malloc failed", __func__); | |
e46b8fb1 | 299 | return SR_ERR_MALLOC; |
133a37bf | 300 | } |
81bbdf6a | 301 | |
133a37bf UH |
302 | if (!(ctx->header = g_try_malloc0(MAX_HEADER_LEN + 1))) { |
303 | g_free(ctx); | |
304 | sr_err("gnuplot out: %s: ctx->header malloc failed", __func__); | |
e46b8fb1 | 305 | return SR_ERR_MALLOC; |
81bbdf6a DR |
306 | } |
307 | ||
308 | o->internal = ctx; | |
309 | ctx->num_enabled_probes = 0; | |
bb7ef793 | 310 | for (l = o->dev->probes; l; l = l->next) { |
81bbdf6a DR |
311 | probe = l->data; |
312 | if (!probe->enabled) | |
313 | continue; | |
314 | ctx->probelist[ctx->num_enabled_probes++] = probe->name; | |
315 | } | |
316 | ctx->probelist[ctx->num_enabled_probes] = 0; | |
317 | // ctx->unitsize = (ctx->num_enabled_probes + 7) / 8; | |
809c5f20 UH |
318 | ctx->unitsize = sizeof(struct sr_analog_sample) + |
319 | (ctx->num_enabled_probes * sizeof(struct sr_analog_probe)); | |
81bbdf6a | 320 | |
bb7ef793 | 321 | num_probes = g_slist_length(o->dev->probes); |
81bbdf6a | 322 | comment[0] = '\0'; |
c09f0b57 UH |
323 | if (o->dev->driver && sr_dev_has_hwcap(o->dev, SR_HWCAP_SAMPLERATE)) { |
324 | samplerate = *((uint64_t *) o->dev->driver->dev_info_get( | |
325 | o->dev->driver_index, SR_DI_CUR_SAMPLERATE)); | |
a00ba012 | 326 | if (!(frequency_s = sr_samplerate_string(samplerate))) { |
133a37bf UH |
327 | g_free(ctx->header); |
328 | g_free(ctx); | |
e46b8fb1 | 329 | return SR_ERR; |
81bbdf6a DR |
330 | } |
331 | snprintf(comment, 127, gnuplot_header_comment, | |
332 | ctx->num_enabled_probes, num_probes, frequency_s); | |
133a37bf | 333 | g_free(frequency_s); |
81bbdf6a DR |
334 | } |
335 | ||
336 | /* Columns / channels */ | |
337 | wbuf[0] = '\0'; | |
338 | for (i = 0; i < ctx->num_enabled_probes; i++) { | |
339 | c = (char *)&wbuf + strlen((char *)&wbuf); | |
340 | sprintf(c, "# %d\t\t%s\n", i + 1, ctx->probelist[i]); | |
341 | } | |
342 | ||
a00ba012 | 343 | if (!(frequency_s = sr_period_string(samplerate))) { |
133a37bf UH |
344 | g_free(ctx->header); |
345 | g_free(ctx); | |
e46b8fb1 | 346 | return SR_ERR; |
81bbdf6a DR |
347 | } |
348 | t = time(NULL); | |
349 | b = snprintf(ctx->header, MAX_HEADER_LEN, gnuplot_header, | |
350 | PACKAGE_STRING, ctime(&t), comment, frequency_s, | |
351 | (char *)&wbuf); | |
133a37bf | 352 | g_free(frequency_s); |
81bbdf6a DR |
353 | |
354 | if (b < 0) { | |
133a37bf UH |
355 | g_free(ctx->header); |
356 | g_free(ctx); | |
e46b8fb1 | 357 | return SR_ERR; |
81bbdf6a DR |
358 | } |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
054e6709 UH |
363 | static int analog_data(struct sr_output *o, uint8_t *data_in, |
364 | uint64_t length_in, uint8_t **data_out, | |
365 | uint64_t *length_out) | |
81bbdf6a DR |
366 | { |
367 | struct context *ctx; | |
ff35879b | 368 | unsigned int max_linelen, outsize, p, /* curbit, */ i; |
81bbdf6a DR |
369 | // uint64_t sample; |
370 | static uint64_t samplecount = 0; | |
054e6709 | 371 | uint8_t *outbuf, *c; |
809c5f20 | 372 | struct sr_analog_sample *sample; |
81bbdf6a DR |
373 | |
374 | ctx = o->internal; | |
375 | // max_linelen = 16 + ctx->num_enabled_probes * 2; | |
376 | max_linelen = 16 + ctx->num_enabled_probes * 30; | |
377 | outsize = length_in / ctx->unitsize * max_linelen; | |
378 | if (ctx->header) | |
379 | outsize += strlen(ctx->header); | |
380 | ||
133a37bf UH |
381 | if (!(outbuf = g_try_malloc0(outsize))) { |
382 | sr_err("gnuplot out: %s: outbuf malloc failed", __func__); | |
e46b8fb1 | 383 | return SR_ERR_MALLOC; |
133a37bf | 384 | } |
81bbdf6a DR |
385 | |
386 | outbuf[0] = '\0'; | |
387 | if (ctx->header) { | |
388 | /* The header is still here, this must be the first packet. */ | |
389 | strncpy(outbuf, ctx->header, outsize); | |
133a37bf | 390 | g_free(ctx->header); |
81bbdf6a DR |
391 | ctx->header = NULL; |
392 | } | |
393 | ||
394 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { | |
395 | // memcpy(&sample, data_in + i, ctx->unitsize); | |
809c5f20 | 396 | sample = (struct sr_analog_sample *) (data_in + i); |
81bbdf6a DR |
397 | |
398 | /* The first column is a counter (needed for gnuplot). */ | |
399 | c = outbuf + strlen(outbuf); | |
400 | sprintf(c, "%" PRIu64 "\t", samplecount++); | |
401 | ||
402 | /* The next columns are the values of all channels. */ | |
403 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
404 | // curbit = (sample & ((uint64_t) (1 << p))) >> p; | |
405 | c = outbuf + strlen(outbuf); | |
406 | // sprintf(c, "%d ", curbit); | |
407 | /* | |
408 | * FIXME: Should be doing proper raw->voltage conversion | |
409 | * here, casting to int16_t isn't it. Remember that if | |
410 | * res = 1 conversion isn't necessary. | |
411 | */ | |
412 | sprintf(c, "%f ", (double) ((int16_t) (sample->probes[p].val & | |
413 | ((1 << sample->probes[p].res) - 1)))); | |
414 | } | |
415 | ||
416 | c = outbuf + strlen(outbuf); | |
417 | sprintf(c, "\n"); | |
418 | } | |
419 | ||
420 | *data_out = outbuf; | |
421 | *length_out = strlen(outbuf); | |
422 | ||
e46b8fb1 | 423 | return SR_OK; |
81bbdf6a DR |
424 | } |
425 | ||
f50f3f40 | 426 | struct sr_output_format output_analog_gnuplot = { |
cdb3573c | 427 | .id = "analog_gnuplot", |
d494a4aa UH |
428 | .description = "Gnuplot analog", |
429 | .df_type = SR_DF_ANALOG, | |
430 | .init = analog_init, | |
431 | .data = analog_data, | |
432 | .event = event, | |
81bbdf6a | 433 | }; |
77b45442 | 434 | #endif |