2 * This file is part of the sigrok project.
4 * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
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.
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.
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
27 * Convert a numeric samplerate value to its "natural" string representation.
29 * E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz".
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.
35 char *sr_samplerate_string(uint64_t samplerate)
40 o = malloc(30 + 1); /* Enough for a uint64_t as string + " GHz". */
44 if (samplerate >= GHZ(1))
45 r = snprintf(o, 30, "%" PRIu64 " GHz", samplerate / 1000000000);
46 else if (samplerate >= MHZ(1))
47 r = snprintf(o, 30, "%" PRIu64 " MHz", samplerate / 1000000);
48 else if (samplerate >= KHZ(1))
49 r = snprintf(o, 30, "%" PRIu64 " kHz", samplerate / 1000);
51 r = snprintf(o, 30, "%" PRIu64 " Hz", samplerate);
54 /* Something went wrong... */
63 * Convert a numeric samplerate value to the "natural" string representation
66 * E.g. a value of 3000000 would be converted to "3 us", 20000 to "50 ms".
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.
72 char *sr_period_string(uint64_t frequency)
77 o = malloc(30 + 1); /* Enough for a uint64_t as string + " ms". */
81 if (frequency >= GHZ(1))
82 r = snprintf(o, 30, "%" PRIu64 " ns", frequency / 1000000000);
83 else if (frequency >= MHZ(1))
84 r = snprintf(o, 30, "%" PRIu64 " us", frequency / 1000000);
85 else if (frequency >= KHZ(1))
86 r = snprintf(o, 30, "%" PRIu64 " ms", frequency / 1000);
88 r = snprintf(o, 30, "%" PRIu64 " s", frequency);
91 /* Something went wrong... */
99 char **sr_parse_triggerstring(struct sr_device *device, const char *triggerstring)
102 struct sr_probe *probe;
103 int max_probes, probenum, i;
104 char **tokens, **triggerlist, *trigger, *tc, *trigger_types;
107 max_probes = g_slist_length(device->probes);
109 triggerlist = g_malloc0(max_probes * sizeof(char *));
110 tokens = g_strsplit(triggerstring, ",", max_probes);
111 trigger_types = device->plugin->get_device_info(0, SR_DI_TRIGGER_TYPES);
112 if (trigger_types == NULL)
115 for (i = 0; tokens[i]; i++) {
116 if (tokens[i][0] < '0' || tokens[i][0] > '9') {
119 for (l = device->probes; l; l = l->next) {
120 probe = (struct sr_probe *)l->data;
122 && !strncmp(probe->name, tokens[i],
123 strlen(probe->name))) {
124 probenum = probe->index;
129 probenum = strtol(tokens[i], NULL, 10);
132 if (probenum < 1 || probenum > max_probes) {
133 printf("Invalid probe.\n");
138 if ((trigger = strchr(tokens[i], '='))) {
139 for (tc = ++trigger; *tc; tc++) {
140 if (strchr(trigger_types, *tc) == NULL) {
141 printf("Unsupported trigger type "
148 triggerlist[probenum - 1] = g_strdup(trigger);
154 for (i = 0; i < max_probes; i++)
156 g_free(triggerlist[i]);
164 uint64_t sr_parse_sizestring(const char *sizestring)
170 val = strtoull(sizestring, &s, 10);
172 while (s && *s && multiplier == 0) {
200 uint64_t sr_parse_timestring(const char *timestring)
205 time_msec = strtoull(timestring, &s, 10);
206 if (time_msec == 0 && s == timestring)
214 else if (!strcmp(s, "ms"))