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"
22 #include <sys/types.h>
33 static void load_input_file_module(void)
35 struct sr_session *session;
36 const struct sr_input *in;
37 const struct sr_input_module *imod;
38 const struct sr_option **options;
39 struct sr_dev_inst *sdi;
40 GHashTable *mod_args, *mod_opts;
47 g_critical("No supported input formats available.");
51 if (opt_input_format) {
52 mod_args = parse_generic_arg(opt_input_format, TRUE);
53 mod_id = g_hash_table_lookup(mod_args, "sigrok_key");
56 buf = g_string_sized_new(BUFSIZE);
58 /* User specified an input module to use. */
59 if (!(imod = sr_input_find(mod_id)))
60 g_critical("Error: unknown input module '%s'.", mod_id);
61 g_hash_table_remove(mod_args, "sigrok_key");
62 if ((options = sr_input_options_get(imod))) {
63 mod_opts = generic_arg_to_opt(options, mod_args);
64 sr_output_options_free(options);
67 if (!(in = sr_input_new(imod, mod_opts)))
68 g_critical("Error: failed to initialize input module.");
70 g_hash_table_destroy(mod_opts);
72 g_hash_table_destroy(mod_args);
73 if ((fd = open(opt_input_file, O_RDONLY)) == -1)
74 g_critical("Failed to load %s: %s.", opt_input_file,
77 if (strcmp(opt_input_file, "-")) {
79 * An actual filename: let the input modules try to
82 in = sr_input_scan_file(opt_input_file);
83 /* That worked, reopen the file for reading. */
84 fd = open(opt_input_file, O_RDONLY);
87 * Taking input from a pipe: let the input modules try
88 * to identify the stream content.
90 if (!strcmp(opt_input_file, "-")) {
94 if ((fd = open(opt_input_file, O_RDONLY)) == -1)
95 g_critical("Failed to load %s: %s.", opt_input_file,
98 if ((len = read(fd, buf->str, BUFSIZE)) < 1)
99 g_critical("Failed to read %s: %s.", opt_input_file,
102 in = sr_input_scan_buffer(buf);
105 g_critical("Error: no input module found for this file.");
107 sdi = sr_input_dev_inst_get(in);
109 if (select_channels(sdi) != SR_OK)
112 sr_session_new(&session);
113 sr_session_datafeed_callback_add(session, &datafeed_in, NULL);
114 if (sr_session_dev_add(session, sdi) != SR_OK) {
115 g_critical("Failed to use device.");
116 sr_session_destroy(session);
121 g_string_truncate(buf, 0);
122 len = read(fd, buf->str, BUFSIZE);
124 g_critical("Read failed: %s", strerror(errno));
126 if (sr_input_send(in, buf) != SR_OK)
132 g_string_free(buf, TRUE);
134 sr_session_destroy(session);
138 void load_input_file(void)
140 struct sr_session *session;
141 struct sr_dev_inst *sdi;
145 if (strcmp(opt_input_file, "-") || sr_session_load(opt_input_file, &session) == SR_OK) {
146 /* sigrok session file */
147 ret = sr_session_dev_list(session, &devices);
148 if (ret != SR_OK || !devices->data) {
149 g_critical("Failed to access session device.");
150 sr_session_destroy(session);
154 if (select_channels(sdi) != SR_OK) {
155 sr_session_destroy(session);
158 sr_session_datafeed_callback_add(session, datafeed_in, NULL);
159 sr_session_start(session);
160 sr_session_run(session);
161 sr_session_stop(session);
164 /* fall back on input modules */
165 load_input_file_module();