2 * This file is part of the sigrok-cli project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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 3 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, see <http://www.gnu.org/licenses/>.
22 #include <libsigrok/libsigrok.h>
23 #include "sigrok-cli.h"
25 extern gchar *opt_input_file;
26 extern gchar *opt_input_format;
27 extern gchar *opt_probes;
31 * Return the input file format which the CLI tool should use.
33 * If the user specified -I / --input-format, use that one. Otherwise, try to
34 * autodetect the format as good as possible. Failing that, return NULL.
36 * @param filename The filename of the input file. Must not be NULL.
37 * @param opt The -I / --input-file option the user specified (or NULL).
39 * @return A pointer to the 'struct sr_input_format' that should be used,
40 * or NULL if no input format was selected or auto-detected.
42 static struct sr_input_format *determine_input_file_format(
43 const char *filename, const char *opt)
46 struct sr_input_format **inputs;
48 /* If there are no input formats, return NULL right away. */
49 inputs = sr_input_list();
51 g_critical("No supported input formats available.");
55 /* If the user specified -I / --input-format, use that one. */
57 for (i = 0; inputs[i]; i++) {
58 if (strcasecmp(inputs[i]->id, opt))
60 g_debug("Using user-specified input file format '%s'.",
65 /* The user specified an unknown input format, return NULL. */
66 g_critical("Error: specified input file format '%s' is "
71 /* Otherwise, try to find an input module that can handle this file. */
72 for (i = 0; inputs[i]; i++) {
73 if (inputs[i]->format_match(filename))
77 /* Return NULL if no input module wanted to touch this. */
79 g_critical("Error: no matching input module found.");
83 g_debug("cli: Autodetected '%s' input format for file '%s'.",
84 inputs[i]->id, filename);
89 static void load_input_file_format(void)
91 GHashTable *fmtargs = NULL;
94 struct sr_input_format *input_format;
97 if (opt_input_format) {
98 fmtargs = parse_generic_arg(opt_input_format, TRUE);
99 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
102 if (!(input_format = determine_input_file_format(opt_input_file,
104 /* The exact cause was already logged. */
109 g_hash_table_remove(fmtargs, "sigrok_key");
111 if (stat(opt_input_file, &st) == -1) {
112 g_critical("Failed to load %s: %s", opt_input_file,
117 /* Initialize the input module. */
118 if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
119 g_critical("Failed to allocate input module.");
122 in->format = input_format;
124 if (in->format->init) {
125 if (in->format->init(in, opt_input_file) != SR_OK) {
126 g_critical("Input format init failed.");
131 if (select_probes(in->sdi) > 0)
135 sr_session_datafeed_callback_add(datafeed_in, NULL);
136 if (sr_session_dev_add(in->sdi) != SR_OK) {
137 g_critical("Failed to use device.");
138 sr_session_destroy();
142 input_format->loadfile(in, opt_input_file);
144 sr_session_destroy();
147 g_hash_table_destroy(fmtargs);
150 void load_input_file(void)
153 if (sr_session_load(opt_input_file) == SR_OK) {
154 /* sigrok session file */
155 sr_session_datafeed_callback_add(datafeed_in, NULL);
161 /* fall back on input modules */
162 load_input_file_format();