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Commit | Line | Data |
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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> | |
24 | #include <sigrok.h> | |
25 | ||
26 | /** | |
27 | * Convert a numeric samplerate value to its "natural" string representation. | |
28 | * | |
38ba2522 | 29 | * E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz". |
25e7d9b1 UH |
30 | * |
31 | * @param samplerate The samplerate in Hz. | |
32 | * @return A malloc()ed string representation of the samplerate value, | |
33 | * or NULL upon errors. The caller is responsible to free() the memory. | |
34 | */ | |
a00ba012 | 35 | char *sr_samplerate_string(uint64_t samplerate) |
25e7d9b1 UH |
36 | { |
37 | char *o; | |
38 | int r; | |
39 | ||
40 | o = malloc(30 + 1); /* Enough for a uint64_t as string + " GHz". */ | |
484760d1 | 41 | if (!o) |
25e7d9b1 UH |
42 | return NULL; |
43 | ||
44 | if (samplerate >= GHZ(1)) | |
99c1fc59 | 45 | r = snprintf(o, 30, "%" PRIu64 " GHz", samplerate / 1000000000); |
25e7d9b1 | 46 | else if (samplerate >= MHZ(1)) |
99c1fc59 | 47 | r = snprintf(o, 30, "%" PRIu64 " MHz", samplerate / 1000000); |
25e7d9b1 | 48 | else if (samplerate >= KHZ(1)) |
38ba2522 | 49 | r = snprintf(o, 30, "%" PRIu64 " kHz", samplerate / 1000); |
25e7d9b1 | 50 | else |
99c1fc59 | 51 | r = snprintf(o, 30, "%" PRIu64 " Hz", samplerate); |
25e7d9b1 UH |
52 | |
53 | if (r < 0) { | |
54 | /* Something went wrong... */ | |
55 | free(o); | |
56 | return NULL; | |
57 | } | |
58 | ||
59 | return o; | |
60 | } | |
2a3f9541 | 61 | |
2a3f9541 | 62 | /** |
dfcc0bf9 | 63 | * Convert a numeric frequency value to the "natural" string representation |
2a3f9541 BV |
64 | * of its period. |
65 | * | |
2507648e | 66 | * E.g. a value of 3000000 would be converted to "3 us", 20000 to "50 ms". |
2a3f9541 BV |
67 | * |
68 | * @param frequency The frequency in Hz. | |
69 | * @return A malloc()ed string representation of the frequency value, | |
70 | * or NULL upon errors. The caller is responsible to free() the memory. | |
71 | */ | |
a00ba012 | 72 | char *sr_period_string(uint64_t frequency) |
2a3f9541 BV |
73 | { |
74 | char *o; | |
75 | int r; | |
76 | ||
77 | o = malloc(30 + 1); /* Enough for a uint64_t as string + " ms". */ | |
484760d1 | 78 | if (!o) |
2a3f9541 BV |
79 | return NULL; |
80 | ||
81 | if (frequency >= GHZ(1)) | |
82 | r = snprintf(o, 30, "%" PRIu64 " ns", frequency / 1000000000); | |
83 | else if (frequency >= MHZ(1)) | |
2507648e | 84 | r = snprintf(o, 30, "%" PRIu64 " us", frequency / 1000000); |
2a3f9541 BV |
85 | else if (frequency >= KHZ(1)) |
86 | r = snprintf(o, 30, "%" PRIu64 " ms", frequency / 1000); | |
87 | else | |
88 | r = snprintf(o, 30, "%" PRIu64 " s", frequency); | |
89 | ||
90 | if (r < 0) { | |
91 | /* Something went wrong... */ | |
92 | free(o); | |
93 | return NULL; | |
94 | } | |
95 | ||
96 | return o; | |
97 | } | |
40f5ddac | 98 | |
dfcc0bf9 UH |
99 | /** |
100 | * TODO | |
101 | * | |
102 | * @param device TODO | |
103 | * @param triggerstring TODO | |
104 | * @return TODO | |
105 | */ | |
106 | char **sr_parse_triggerstring(struct sr_device *device, | |
107 | const char *triggerstring) | |
40f5ddac BV |
108 | { |
109 | GSList *l; | |
1afe8989 | 110 | struct sr_probe *probe; |
40f5ddac BV |
111 | int max_probes, probenum, i; |
112 | char **tokens, **triggerlist, *trigger, *tc, *trigger_types; | |
113 | gboolean error; | |
114 | ||
115 | max_probes = g_slist_length(device->probes); | |
116 | error = FALSE; | |
117 | triggerlist = g_malloc0(max_probes * sizeof(char *)); | |
118 | tokens = g_strsplit(triggerstring, ",", max_probes); | |
119 | trigger_types = device->plugin->get_device_info(0, SR_DI_TRIGGER_TYPES); | |
120 | if (trigger_types == NULL) | |
121 | return NULL; | |
122 | ||
123 | for (i = 0; tokens[i]; i++) { | |
124 | if (tokens[i][0] < '0' || tokens[i][0] > '9') { | |
125 | /* Named probe */ | |
126 | probenum = 0; | |
127 | for (l = device->probes; l; l = l->next) { | |
1afe8989 | 128 | probe = (struct sr_probe *)l->data; |
40f5ddac BV |
129 | if (probe->enabled |
130 | && !strncmp(probe->name, tokens[i], | |
131 | strlen(probe->name))) { | |
132 | probenum = probe->index; | |
133 | break; | |
134 | } | |
135 | } | |
136 | } else { | |
137 | probenum = strtol(tokens[i], NULL, 10); | |
138 | } | |
139 | ||
140 | if (probenum < 1 || probenum > max_probes) { | |
141 | printf("Invalid probe.\n"); | |
142 | error = TRUE; | |
143 | break; | |
144 | } | |
145 | ||
146 | if ((trigger = strchr(tokens[i], '='))) { | |
147 | for (tc = ++trigger; *tc; tc++) { | |
148 | if (strchr(trigger_types, *tc) == NULL) { | |
149 | printf("Unsupported trigger type " | |
150 | "'%c'\n", *tc); | |
151 | error = TRUE; | |
152 | break; | |
153 | } | |
154 | } | |
155 | if (!error) | |
156 | triggerlist[probenum - 1] = g_strdup(trigger); | |
157 | } | |
158 | } | |
159 | g_strfreev(tokens); | |
160 | ||
161 | if (error) { | |
162 | for (i = 0; i < max_probes; i++) | |
163 | if (triggerlist[i]) | |
164 | g_free(triggerlist[i]); | |
165 | g_free(triggerlist); | |
166 | triggerlist = NULL; | |
167 | } | |
168 | ||
169 | return triggerlist; | |
170 | } | |
171 | ||
dfcc0bf9 UH |
172 | /** |
173 | * Convert a "natural" string representation of a size value to uint64_t. | |
174 | * | |
175 | * E.g. a value of "3k" or "3 K" would be converted to 3000, a value | |
176 | * of "15M" would be converted to 15000000. | |
177 | * | |
178 | * Value representations other than decimal (such as hex or octal) are not | |
179 | * supported. Only 'k' (kilo), 'm' (mega), 'g' (giga) suffixes are supported. | |
180 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
181 | * | |
182 | * @param sizestring A string containing a (decimal) size value. | |
183 | * @return The string's size value as uint64_t. | |
184 | * | |
185 | * TODO: Error handling. | |
186 | */ | |
40f5ddac BV |
187 | uint64_t sr_parse_sizestring(const char *sizestring) |
188 | { | |
189 | int multiplier; | |
190 | uint64_t val; | |
191 | char *s; | |
192 | ||
193 | val = strtoull(sizestring, &s, 10); | |
194 | multiplier = 0; | |
195 | while (s && *s && multiplier == 0) { | |
196 | switch (*s) { | |
197 | case ' ': | |
198 | break; | |
199 | case 'k': | |
200 | case 'K': | |
201 | multiplier = KHZ(1); | |
202 | break; | |
203 | case 'm': | |
204 | case 'M': | |
205 | multiplier = MHZ(1); | |
206 | break; | |
207 | case 'g': | |
208 | case 'G': | |
209 | multiplier = GHZ(1); | |
210 | break; | |
211 | default: | |
212 | val = 0; | |
213 | multiplier = -1; | |
214 | } | |
215 | s++; | |
216 | } | |
217 | if (multiplier > 0) | |
218 | val *= multiplier; | |
219 | ||
220 | return val; | |
221 | } | |
222 | ||
dfcc0bf9 UH |
223 | /** |
224 | * Convert a "natural" string representation of a time value to an | |
225 | * uint64_t value in milliseconds. | |
226 | * | |
227 | * E.g. a value of "3s" or "3 s" would be converted to 3000, a value | |
228 | * of "15ms" would be converted to 15. | |
229 | * | |
230 | * Value representations other than decimal (such as hex or octal) are not | |
231 | * supported. Only lower-case "s" and "ms" time suffixes are supported. | |
232 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
233 | * | |
234 | * @param timestring A string containing a (decimal) time value. | |
235 | * @return The string's time value as uint64_t, in milliseconds. | |
236 | * | |
237 | * TODO: Error handling. | |
238 | * TODO: Add support for "m" (minutes) and others. | |
239 | * TODO: picoseconds? | |
240 | * TODO: Allow both lower-case and upper-case. | |
241 | */ | |
40f5ddac BV |
242 | uint64_t sr_parse_timestring(const char *timestring) |
243 | { | |
244 | uint64_t time_msec; | |
245 | char *s; | |
246 | ||
247 | time_msec = strtoull(timestring, &s, 10); | |
248 | if (time_msec == 0 && s == timestring) | |
249 | return 0; | |
250 | ||
251 | if (s && *s) { | |
252 | while (*s == ' ') | |
253 | s++; | |
254 | if (!strcmp(s, "s")) | |
255 | time_msec *= 1000; | |
256 | else if (!strcmp(s, "ms")) | |
257 | ; /* redundant */ | |
258 | else | |
259 | return 0; | |
260 | } | |
261 | ||
262 | return time_msec; | |
263 | } |