]>
Commit | Line | Data |
---|---|---|
e2ad47b5 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
e2ad47b5 UH |
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 | 27 | |
3544f848 | 28 | #define LOG_PREFIX "output/gnuplot" |
a944a84b | 29 | |
e2ad47b5 | 30 | struct context { |
afc8e4de UH |
31 | unsigned int num_enabled_probes; |
32 | unsigned int unitsize; | |
e2ad47b5 | 33 | char *header; |
9c178ffa | 34 | uint8_t *old_sample; |
e2ad47b5 UH |
35 | }; |
36 | ||
d078d2e5 | 37 | static const char *gnuplot_header = "\ |
e2ad47b5 UH |
38 | # Sample data in space-separated columns format usable by gnuplot\n\ |
39 | #\n\ | |
5cca9adb | 40 | # Generated by: %s on %s%s\ |
d4ae8eaa | 41 | # Period: %s\n\ |
114fb93f UH |
42 | #\n\ |
43 | # Column\tProbe\n\ | |
44 | # -------------------------------------\ | |
45 | ----------------------------------------\n\ | |
46 | # 0\t\tSample counter (for internal gnuplot purposes)\n%s\n"; | |
e2ad47b5 | 47 | |
d078d2e5 | 48 | static const char *gnuplot_header_comment = "\ |
7aae7462 BV |
49 | # Comment: Acquisition with %d/%d probes at %s\n"; |
50 | ||
f50f3f40 | 51 | static int init(struct sr_output *o) |
e2ad47b5 | 52 | { |
e2ad47b5 | 53 | struct context *ctx; |
1afe8989 | 54 | struct sr_probe *probe; |
e2ad47b5 | 55 | GSList *l; |
ec4063b8 BV |
56 | GVariant *gvar; |
57 | uint64_t samplerate; | |
afc8e4de | 58 | unsigned int i; |
90f680ff | 59 | int 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) { |
a944a84b | 65 | sr_err("%s: o was NULL", __func__); |
20ebd1fe UH |
66 | return SR_ERR_ARG; |
67 | } | |
68 | ||
5c3c1241 | 69 | if (!o->sdi) { |
a944a84b | 70 | sr_err("%s: o->sdi was NULL", __func__); |
20ebd1fe UH |
71 | return SR_ERR_ARG; |
72 | } | |
73 | ||
133a37bf | 74 | if (!(ctx = g_try_malloc0(sizeof(struct context)))) { |
a944a84b | 75 | sr_err("%s: ctx malloc failed", __func__); |
e46b8fb1 | 76 | return SR_ERR_MALLOC; |
20ebd1fe | 77 | } |
a821069b | 78 | |
e2ad47b5 UH |
79 | o->internal = ctx; |
80 | ctx->num_enabled_probes = 0; | |
5c3c1241 | 81 | for (l = o->sdi->probes; l; l = l->next) { |
ec4063b8 | 82 | probe = l->data; |
3699a8a1 BV |
83 | if (probe->type != SR_PROBE_LOGIC) |
84 | continue; | |
85 | if (!probe->enabled) | |
86 | continue; | |
87 | ctx->num_enabled_probes++; | |
e2ad47b5 | 88 | } |
e2ad47b5 UH |
89 | ctx->unitsize = (ctx->num_enabled_probes + 7) / 8; |
90 | ||
5c3c1241 | 91 | num_probes = g_slist_length(o->sdi->probes); |
a821069b | 92 | comment[0] = '\0'; |
ec4063b8 | 93 | samplerate = 0; |
d3c74a6f BV |
94 | if (sr_config_get(o->sdi->driver, o->sdi, NULL, SR_CONF_SAMPLERATE, |
95 | &gvar) == SR_OK) { | |
ec4063b8 | 96 | samplerate = g_variant_get_uint64(gvar); |
af51a771 | 97 | g_variant_unref(gvar); |
ec4063b8 | 98 | if (!(frequency_s = sr_samplerate_string(samplerate))) { |
a944a84b | 99 | sr_err("%s: sr_samplerate_string failed", __func__); |
133a37bf | 100 | g_free(ctx); |
e46b8fb1 | 101 | return SR_ERR; |
a821069b UH |
102 | } |
103 | snprintf(comment, 127, gnuplot_header_comment, | |
d4ae8eaa | 104 | ctx->num_enabled_probes, num_probes, frequency_s); |
133a37bf | 105 | g_free(frequency_s); |
7aae7462 | 106 | } |
e2ad47b5 UH |
107 | |
108 | /* Columns / channels */ | |
109 | wbuf[0] = '\0'; | |
deb09083 ML |
110 | for (i = 0, l = o->sdi->probes; l; l = l->next, i++) { |
111 | probe = l->data; | |
3699a8a1 BV |
112 | if (probe->type != SR_PROBE_LOGIC) |
113 | continue; | |
deb09083 ML |
114 | if (!probe->enabled) |
115 | continue; | |
054e6709 | 116 | c = (char *)&wbuf + strlen((const char *)&wbuf); |
deb09083 | 117 | sprintf(c, "# %d\t\t%s\n", i + 1, probe->name); |
e2ad47b5 UH |
118 | } |
119 | ||
ec4063b8 | 120 | if (!(frequency_s = sr_period_string(samplerate))) { |
a944a84b | 121 | sr_err("%s: sr_period_string failed", __func__); |
133a37bf | 122 | g_free(ctx); |
e46b8fb1 | 123 | return SR_ERR; |
d4ae8eaa | 124 | } |
20ebd1fe | 125 | |
5cca9adb | 126 | t = time(NULL); |
90f680ff ML |
127 | ctx->header = g_strdup_printf(gnuplot_header, PACKAGE_STRING, |
128 | ctime(&t), comment, frequency_s, (char *)&wbuf); | |
133a37bf | 129 | g_free(frequency_s); |
e2ad47b5 | 130 | |
9c178ffa ML |
131 | if (!(ctx->old_sample = g_try_malloc0(ctx->unitsize))) { |
132 | sr_err("%s: ctx->old_sample malloc failed", __func__); | |
133 | g_free(ctx->header); | |
134 | g_free(ctx); | |
135 | return SR_ERR_MALLOC; | |
136 | } | |
137 | ||
e2ad47b5 UH |
138 | return 0; |
139 | } | |
140 | ||
054e6709 | 141 | static int event(struct sr_output *o, int event_type, uint8_t **data_out, |
e2ad47b5 UH |
142 | uint64_t *length_out) |
143 | { | |
20ebd1fe | 144 | if (!o) { |
a944a84b | 145 | sr_err("%s: o was NULL", __func__); |
20ebd1fe UH |
146 | return SR_ERR_ARG; |
147 | } | |
148 | ||
149 | if (!data_out) { | |
a944a84b | 150 | sr_err("%s: data_out was NULL", __func__); |
20ebd1fe UH |
151 | return SR_ERR_ARG; |
152 | } | |
153 | ||
154 | if (!length_out) { | |
a944a84b | 155 | sr_err("%s: length_out was NULL", __func__); |
20ebd1fe UH |
156 | return SR_ERR_ARG; |
157 | } | |
158 | ||
99c1fc59 | 159 | switch (event_type) { |
5a2326a7 | 160 | case SR_DF_TRIGGER: |
20ebd1fe | 161 | /* TODO: Can a trigger mark be in a gnuplot data file? */ |
e2ad47b5 | 162 | break; |
5a2326a7 | 163 | case SR_DF_END: |
133a37bf | 164 | g_free(o->internal); |
e2ad47b5 UH |
165 | o->internal = NULL; |
166 | break; | |
20ebd1fe | 167 | default: |
a944a84b | 168 | sr_err("%s: unsupported event type: %d", __func__, event_type); |
20ebd1fe | 169 | break; |
e2ad47b5 UH |
170 | } |
171 | ||
9ab95e54 BV |
172 | *data_out = NULL; |
173 | *length_out = 0; | |
174 | ||
e46b8fb1 | 175 | return SR_OK; |
e2ad47b5 UH |
176 | } |
177 | ||
054e6709 UH |
178 | static int data(struct sr_output *o, const uint8_t *data_in, |
179 | uint64_t length_in, uint8_t **data_out, uint64_t *length_out) | |
e2ad47b5 UH |
180 | { |
181 | struct context *ctx; | |
d4ae8eaa | 182 | unsigned int max_linelen, outsize, p, curbit, i; |
9c178ffa ML |
183 | const uint8_t *sample; |
184 | static uint64_t samplecount = 0; | |
054e6709 | 185 | uint8_t *outbuf, *c; |
e2ad47b5 | 186 | |
20ebd1fe | 187 | if (!o) { |
a944a84b | 188 | sr_err("%s: o was NULL", __func__); |
20ebd1fe UH |
189 | return SR_ERR_ARG; |
190 | } | |
191 | ||
192 | if (!o->internal) { | |
a944a84b | 193 | sr_err("%s: o->internal was NULL", __func__); |
20ebd1fe UH |
194 | return SR_ERR_ARG; |
195 | } | |
196 | ||
197 | if (!data_in) { | |
a944a84b | 198 | sr_err("%s: data_in was NULL", __func__); |
20ebd1fe UH |
199 | return SR_ERR_ARG; |
200 | } | |
201 | ||
202 | if (!data_out) { | |
a944a84b | 203 | sr_err("%s: data_out was NULL", __func__); |
20ebd1fe UH |
204 | return SR_ERR_ARG; |
205 | } | |
206 | ||
207 | if (!length_out) { | |
a944a84b | 208 | sr_err("%s: length_out was NULL", __func__); |
20ebd1fe UH |
209 | return SR_ERR_ARG; |
210 | } | |
211 | ||
e2ad47b5 | 212 | ctx = o->internal; |
d4ae8eaa BV |
213 | max_linelen = 16 + ctx->num_enabled_probes * 2; |
214 | outsize = length_in / ctx->unitsize * max_linelen; | |
e273a904 | 215 | if (ctx->header) |
d4ae8eaa | 216 | outsize += strlen(ctx->header); |
a821069b | 217 | |
133a37bf | 218 | if (!(outbuf = g_try_malloc0(outsize))) { |
a944a84b | 219 | sr_err("%s: outbuf malloc failed", __func__); |
e46b8fb1 | 220 | return SR_ERR_MALLOC; |
20ebd1fe | 221 | } |
a821069b UH |
222 | |
223 | outbuf[0] = '\0'; | |
e2ad47b5 UH |
224 | if (ctx->header) { |
225 | /* The header is still here, this must be the first packet. */ | |
054e6709 | 226 | strncpy((char *)outbuf, ctx->header, outsize); |
133a37bf | 227 | g_free(ctx->header); |
e2ad47b5 | 228 | ctx->header = NULL; |
e2ad47b5 UH |
229 | } |
230 | ||
607b58de | 231 | for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { |
50959ddc | 232 | |
9c178ffa | 233 | sample = data_in + i; |
e2ad47b5 | 234 | |
50959ddc UH |
235 | /* |
236 | * Don't output the same samples multiple times. However, make | |
237 | * sure to output at least the first and last sample. | |
238 | */ | |
9c178ffa ML |
239 | if (samplecount++ != 0 && |
240 | !memcmp(sample, ctx->old_sample, ctx->unitsize)) { | |
50959ddc UH |
241 | if (i != (length_in - ctx->unitsize)) |
242 | continue; | |
243 | } | |
9c178ffa | 244 | memcpy(ctx->old_sample, sample, ctx->unitsize); |
50959ddc | 245 | |
e2ad47b5 | 246 | /* The first column is a counter (needed for gnuplot). */ |
054e6709 UH |
247 | c = outbuf + strlen((const char *)outbuf); |
248 | sprintf((char *)c, "%" PRIu64 "\t", samplecount++); | |
e2ad47b5 UH |
249 | |
250 | /* The next columns are the values of all channels. */ | |
251 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
9c178ffa | 252 | curbit = (sample[p / 8] & ((uint8_t) (1 << (p % 8)))) >> (p % 8); |
054e6709 UH |
253 | c = outbuf + strlen((const char *)outbuf); |
254 | sprintf((char *)c, "%d ", curbit); | |
e2ad47b5 UH |
255 | } |
256 | ||
054e6709 UH |
257 | c = outbuf + strlen((const char *)outbuf); |
258 | sprintf((char *)c, "\n"); | |
e2ad47b5 UH |
259 | } |
260 | ||
261 | *data_out = outbuf; | |
054e6709 | 262 | *length_out = strlen((const char *)outbuf); |
e2ad47b5 | 263 | |
e46b8fb1 | 264 | return SR_OK; |
e2ad47b5 UH |
265 | } |
266 | ||
7c1d391c | 267 | SR_PRIV struct sr_output_format output_gnuplot = { |
cdb3573c | 268 | .id = "gnuplot", |
d494a4aa UH |
269 | .description = "Gnuplot", |
270 | .df_type = SR_DF_LOGIC, | |
271 | .init = init, | |
272 | .data = data, | |
273 | .event = event, | |
77b45442 | 274 | }; |