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/>.
20 #include "sigrok-cli.h"
29 * Return the input file format which the CLI tool should use.
31 * If the user specified -I / --input-format, use that one. Otherwise, try to
32 * autodetect the format as good as possible. Failing that, return NULL.
34 * @param filename The filename of the input file. Must not be NULL.
35 * @param opt The -I / --input-file option the user specified (or NULL).
37 * @return A pointer to the 'struct sr_input_format' that should be used,
38 * or NULL if no input format was selected or auto-detected.
40 static struct sr_input_format *determine_input_file_format(
41 const char *filename, const char *opt)
44 struct sr_input_format **inputs;
46 /* If there are no input formats, return NULL right away. */
47 inputs = sr_input_list();
49 g_critical("No supported input formats available.");
53 /* If the user specified -I / --input-format, use that one. */
55 for (i = 0; inputs[i]; i++) {
56 if (strcasecmp(inputs[i]->id, opt))
58 g_debug("Using user-specified input file format '%s'.",
63 /* The user specified an unknown input format, return NULL. */
64 g_critical("Error: specified input file format '%s' is "
69 /* Otherwise, try to find an input module that can handle this file. */
70 for (i = 0; inputs[i]; i++) {
71 if (inputs[i]->format_match(filename))
75 /* Return NULL if no input module wanted to touch this. */
77 g_critical("Error: no matching input module found.");
81 g_debug("cli: Autodetected '%s' input format for file '%s'.",
82 inputs[i]->id, filename);
87 static void load_input_file_format(void)
89 GHashTable *fmtargs = NULL;
91 struct sr_session *session;
93 struct sr_input_format *input_format;
96 if (opt_input_format) {
97 fmtargs = parse_generic_arg(opt_input_format, TRUE);
98 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
101 if (!(input_format = determine_input_file_format(opt_input_file,
103 /* The exact cause was already logged. */
108 g_hash_table_remove(fmtargs, "sigrok_key");
110 if (stat(opt_input_file, &st) == -1) {
111 g_critical("Failed to load %s: %s", opt_input_file,
116 /* Initialize the input module. */
117 if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
118 g_critical("Failed to allocate input module.");
121 in->format = input_format;
123 if (in->format->init) {
124 if (in->format->init(in, opt_input_file) != SR_OK) {
125 g_critical("Input format init failed.");
130 if (select_channels(in->sdi) != SR_OK)
133 sr_session_new(&session);
134 sr_session_datafeed_callback_add(session, &datafeed_in, NULL);
135 if (sr_session_dev_add(session, in->sdi) != SR_OK) {
136 g_critical("Failed to use device.");
137 sr_session_destroy(session);
141 input_format->loadfile(in, opt_input_file);
143 sr_session_destroy(session);
146 g_hash_table_destroy(fmtargs);
149 void load_input_file(void)
152 struct sr_session *session;
153 struct sr_dev_inst *sdi;
156 if (sr_session_load(opt_input_file, &session) == SR_OK) {
157 /* sigrok session file */
158 ret = sr_session_dev_list(session, &devices);
159 if (ret != SR_OK || !devices->data) {
160 g_critical("Failed to access session device.");
161 sr_session_destroy(session);
165 if (select_channels(sdi) != SR_OK) {
166 sr_session_destroy(session);
169 sr_session_datafeed_callback_add(session, datafeed_in, NULL);
170 sr_session_start(session);
171 sr_session_run(session);
172 sr_session_stop(session);
175 /* fall back on input modules */
176 load_input_file_format();