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25e7d9b1 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 <stdint.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
b7f09cf8 UH |
24 | #include "sigrok.h" |
25 | #include "sigrok-internal.h" | |
25e7d9b1 UH |
26 | |
27 | /** | |
28 | * Convert a numeric samplerate value to its "natural" string representation. | |
29 | * | |
38ba2522 | 30 | * E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz". |
25e7d9b1 UH |
31 | * |
32 | * @param samplerate The samplerate in Hz. | |
133a37bf UH |
33 | * @return A g_try_malloc()ed string representation of the samplerate value, |
34 | * or NULL upon errors. The caller is responsible to g_free() the | |
35 | * memory. | |
25e7d9b1 | 36 | */ |
1a081ca6 | 37 | SR_API char *sr_samplerate_string(uint64_t samplerate) |
25e7d9b1 UH |
38 | { |
39 | char *o; | |
40 | int r; | |
41 | ||
133a37bf UH |
42 | /* Allocate enough for a uint64_t as string + " GHz". */ |
43 | if (!(o = g_try_malloc0(30 + 1))) { | |
44 | sr_err("strutil: %s: o malloc failed", __func__); | |
25e7d9b1 | 45 | return NULL; |
133a37bf | 46 | } |
25e7d9b1 | 47 | |
59df0c77 | 48 | if (samplerate >= SR_GHZ(1)) |
99c1fc59 | 49 | r = snprintf(o, 30, "%" PRIu64 " GHz", samplerate / 1000000000); |
59df0c77 | 50 | else if (samplerate >= SR_MHZ(1)) |
99c1fc59 | 51 | r = snprintf(o, 30, "%" PRIu64 " MHz", samplerate / 1000000); |
59df0c77 | 52 | else if (samplerate >= SR_KHZ(1)) |
38ba2522 | 53 | r = snprintf(o, 30, "%" PRIu64 " kHz", samplerate / 1000); |
25e7d9b1 | 54 | else |
99c1fc59 | 55 | r = snprintf(o, 30, "%" PRIu64 " Hz", samplerate); |
25e7d9b1 UH |
56 | |
57 | if (r < 0) { | |
58 | /* Something went wrong... */ | |
133a37bf | 59 | g_free(o); |
25e7d9b1 UH |
60 | return NULL; |
61 | } | |
62 | ||
63 | return o; | |
64 | } | |
2a3f9541 | 65 | |
2a3f9541 | 66 | /** |
dfcc0bf9 | 67 | * Convert a numeric frequency value to the "natural" string representation |
2a3f9541 BV |
68 | * of its period. |
69 | * | |
2507648e | 70 | * E.g. a value of 3000000 would be converted to "3 us", 20000 to "50 ms". |
2a3f9541 BV |
71 | * |
72 | * @param frequency The frequency in Hz. | |
133a37bf UH |
73 | * @return A g_try_malloc()ed string representation of the frequency value, |
74 | * or NULL upon errors. The caller is responsible to g_free() the | |
75 | * memory. | |
2a3f9541 | 76 | */ |
1a081ca6 | 77 | SR_API char *sr_period_string(uint64_t frequency) |
2a3f9541 BV |
78 | { |
79 | char *o; | |
80 | int r; | |
81 | ||
133a37bf UH |
82 | /* Allocate enough for a uint64_t as string + " ms". */ |
83 | if (!(o = g_try_malloc0(30 + 1))) { | |
84 | sr_err("strutil: %s: o malloc failed", __func__); | |
2a3f9541 | 85 | return NULL; |
133a37bf | 86 | } |
2a3f9541 | 87 | |
59df0c77 | 88 | if (frequency >= SR_GHZ(1)) |
2a3f9541 | 89 | r = snprintf(o, 30, "%" PRIu64 " ns", frequency / 1000000000); |
59df0c77 | 90 | else if (frequency >= SR_MHZ(1)) |
2507648e | 91 | r = snprintf(o, 30, "%" PRIu64 " us", frequency / 1000000); |
59df0c77 | 92 | else if (frequency >= SR_KHZ(1)) |
2a3f9541 BV |
93 | r = snprintf(o, 30, "%" PRIu64 " ms", frequency / 1000); |
94 | else | |
95 | r = snprintf(o, 30, "%" PRIu64 " s", frequency); | |
96 | ||
97 | if (r < 0) { | |
98 | /* Something went wrong... */ | |
133a37bf | 99 | g_free(o); |
2a3f9541 BV |
100 | return NULL; |
101 | } | |
102 | ||
103 | return o; | |
104 | } | |
40f5ddac | 105 | |
dfcc0bf9 UH |
106 | /** |
107 | * TODO | |
108 | * | |
109 | * @param device TODO | |
110 | * @param triggerstring TODO | |
111 | * @return TODO | |
112 | */ | |
1a081ca6 UH |
113 | SR_API char **sr_parse_triggerstring(struct sr_device *device, |
114 | const char *triggerstring) | |
40f5ddac BV |
115 | { |
116 | GSList *l; | |
1afe8989 | 117 | struct sr_probe *probe; |
40f5ddac BV |
118 | int max_probes, probenum, i; |
119 | char **tokens, **triggerlist, *trigger, *tc, *trigger_types; | |
120 | gboolean error; | |
121 | ||
122 | max_probes = g_slist_length(device->probes); | |
123 | error = FALSE; | |
b53738ba UH |
124 | |
125 | if (!(triggerlist = g_try_malloc0(max_probes * sizeof(char *)))) { | |
126 | sr_err("session file: %s: metafile malloc failed", __func__); | |
127 | return NULL; | |
128 | } | |
129 | ||
40f5ddac BV |
130 | tokens = g_strsplit(triggerstring, ",", max_probes); |
131 | trigger_types = device->plugin->get_device_info(0, SR_DI_TRIGGER_TYPES); | |
132 | if (trigger_types == NULL) | |
133 | return NULL; | |
134 | ||
135 | for (i = 0; tokens[i]; i++) { | |
136 | if (tokens[i][0] < '0' || tokens[i][0] > '9') { | |
137 | /* Named probe */ | |
138 | probenum = 0; | |
139 | for (l = device->probes; l; l = l->next) { | |
1afe8989 | 140 | probe = (struct sr_probe *)l->data; |
40f5ddac BV |
141 | if (probe->enabled |
142 | && !strncmp(probe->name, tokens[i], | |
143 | strlen(probe->name))) { | |
144 | probenum = probe->index; | |
145 | break; | |
146 | } | |
147 | } | |
148 | } else { | |
149 | probenum = strtol(tokens[i], NULL, 10); | |
150 | } | |
151 | ||
152 | if (probenum < 1 || probenum > max_probes) { | |
a562c3a2 | 153 | sr_err("Invalid probe.\n"); |
40f5ddac BV |
154 | error = TRUE; |
155 | break; | |
156 | } | |
157 | ||
158 | if ((trigger = strchr(tokens[i], '='))) { | |
159 | for (tc = ++trigger; *tc; tc++) { | |
160 | if (strchr(trigger_types, *tc) == NULL) { | |
a562c3a2 | 161 | sr_err("Unsupported trigger type " |
40f5ddac BV |
162 | "'%c'\n", *tc); |
163 | error = TRUE; | |
164 | break; | |
165 | } | |
166 | } | |
167 | if (!error) | |
168 | triggerlist[probenum - 1] = g_strdup(trigger); | |
169 | } | |
170 | } | |
171 | g_strfreev(tokens); | |
172 | ||
173 | if (error) { | |
174 | for (i = 0; i < max_probes; i++) | |
66410a86 | 175 | g_free(triggerlist[i]); |
40f5ddac BV |
176 | g_free(triggerlist); |
177 | triggerlist = NULL; | |
178 | } | |
179 | ||
180 | return triggerlist; | |
181 | } | |
182 | ||
dfcc0bf9 UH |
183 | /** |
184 | * Convert a "natural" string representation of a size value to uint64_t. | |
185 | * | |
186 | * E.g. a value of "3k" or "3 K" would be converted to 3000, a value | |
187 | * of "15M" would be converted to 15000000. | |
188 | * | |
189 | * Value representations other than decimal (such as hex or octal) are not | |
190 | * supported. Only 'k' (kilo), 'm' (mega), 'g' (giga) suffixes are supported. | |
191 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
192 | * | |
193 | * @param sizestring A string containing a (decimal) size value. | |
f64c1414 BV |
194 | * @param size Pointer to uint64_t which will contain the string's size value. |
195 | * @return SR_OK or error code | |
dfcc0bf9 | 196 | * |
dfcc0bf9 | 197 | */ |
1a081ca6 | 198 | SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size) |
40f5ddac | 199 | { |
f64c1414 | 200 | int multiplier, done; |
40f5ddac BV |
201 | char *s; |
202 | ||
f64c1414 | 203 | *size = strtoull(sizestring, &s, 10); |
40f5ddac | 204 | multiplier = 0; |
f64c1414 BV |
205 | done = FALSE; |
206 | while (s && *s && multiplier == 0 && !done) { | |
40f5ddac BV |
207 | switch (*s) { |
208 | case ' ': | |
209 | break; | |
210 | case 'k': | |
211 | case 'K': | |
59df0c77 | 212 | multiplier = SR_KHZ(1); |
40f5ddac BV |
213 | break; |
214 | case 'm': | |
215 | case 'M': | |
59df0c77 | 216 | multiplier = SR_MHZ(1); |
40f5ddac BV |
217 | break; |
218 | case 'g': | |
219 | case 'G': | |
59df0c77 | 220 | multiplier = SR_GHZ(1); |
40f5ddac BV |
221 | break; |
222 | default: | |
f64c1414 BV |
223 | done = TRUE; |
224 | s--; | |
40f5ddac BV |
225 | } |
226 | s++; | |
227 | } | |
228 | if (multiplier > 0) | |
f64c1414 | 229 | *size *= multiplier; |
40f5ddac | 230 | |
f64c1414 BV |
231 | if (*s && strcasecmp(s, "Hz")) |
232 | return SR_ERR; | |
233 | ||
234 | return SR_OK; | |
40f5ddac BV |
235 | } |
236 | ||
dfcc0bf9 UH |
237 | /** |
238 | * Convert a "natural" string representation of a time value to an | |
239 | * uint64_t value in milliseconds. | |
240 | * | |
241 | * E.g. a value of "3s" or "3 s" would be converted to 3000, a value | |
242 | * of "15ms" would be converted to 15. | |
243 | * | |
244 | * Value representations other than decimal (such as hex or octal) are not | |
245 | * supported. Only lower-case "s" and "ms" time suffixes are supported. | |
246 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
247 | * | |
248 | * @param timestring A string containing a (decimal) time value. | |
249 | * @return The string's time value as uint64_t, in milliseconds. | |
250 | * | |
251 | * TODO: Error handling. | |
252 | * TODO: Add support for "m" (minutes) and others. | |
253 | * TODO: picoseconds? | |
254 | * TODO: Allow both lower-case and upper-case. | |
255 | */ | |
1a081ca6 | 256 | SR_API uint64_t sr_parse_timestring(const char *timestring) |
40f5ddac BV |
257 | { |
258 | uint64_t time_msec; | |
259 | char *s; | |
260 | ||
261 | time_msec = strtoull(timestring, &s, 10); | |
262 | if (time_msec == 0 && s == timestring) | |
263 | return 0; | |
264 | ||
265 | if (s && *s) { | |
266 | while (*s == ' ') | |
267 | s++; | |
268 | if (!strcmp(s, "s")) | |
269 | time_msec *= 1000; | |
270 | else if (!strcmp(s, "ms")) | |
271 | ; /* redundant */ | |
272 | else | |
273 | return 0; | |
274 | } | |
275 | ||
276 | return time_msec; | |
277 | } | |
4d436e71 | 278 | |
1a081ca6 | 279 | SR_API gboolean sr_parse_boolstring(const char *boolstr) |
4d436e71 GM |
280 | { |
281 | if (!boolstr) | |
282 | return FALSE; | |
283 | ||
1a081ca6 | 284 | if (!g_strcasecmp(boolstr, "true") || |
4d436e71 GM |
285 | !g_strcasecmp(boolstr, "yes") || |
286 | !g_strcasecmp(boolstr, "on") || | |
1a081ca6 | 287 | !g_strcasecmp(boolstr, "1")) |
4d436e71 GM |
288 | return TRUE; |
289 | ||
290 | return FALSE; | |
291 | } |