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1 | /* |
2 | * This file is part of the sigrok-cli project. | |
3 | * | |
4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> | |
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 3 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20fb52e0 | 20 | #include "sigrok-cli.h" |
2be182e6 BV |
21 | #include "config.h" |
22 | #include <glib.h> | |
2be182e6 BV |
23 | |
24 | extern gchar *opt_input_file; | |
25 | extern gchar *opt_input_format; | |
26 | extern gchar *opt_probes; | |
27 | ||
28 | ||
29 | /** | |
30 | * Return the input file format which the CLI tool should use. | |
31 | * | |
32 | * If the user specified -I / --input-format, use that one. Otherwise, try to | |
33 | * autodetect the format as good as possible. Failing that, return NULL. | |
34 | * | |
35 | * @param filename The filename of the input file. Must not be NULL. | |
36 | * @param opt The -I / --input-file option the user specified (or NULL). | |
37 | * | |
38 | * @return A pointer to the 'struct sr_input_format' that should be used, | |
39 | * or NULL if no input format was selected or auto-detected. | |
40 | */ | |
41 | static struct sr_input_format *determine_input_file_format( | |
42 | const char *filename, const char *opt) | |
43 | { | |
44 | int i; | |
45 | struct sr_input_format **inputs; | |
46 | ||
47 | /* If there are no input formats, return NULL right away. */ | |
48 | inputs = sr_input_list(); | |
49 | if (!inputs) { | |
50 | g_critical("No supported input formats available."); | |
51 | return NULL; | |
52 | } | |
53 | ||
54 | /* If the user specified -I / --input-format, use that one. */ | |
55 | if (opt) { | |
56 | for (i = 0; inputs[i]; i++) { | |
57 | if (strcasecmp(inputs[i]->id, opt)) | |
58 | continue; | |
59 | g_debug("Using user-specified input file format '%s'.", | |
60 | inputs[i]->id); | |
61 | return inputs[i]; | |
62 | } | |
63 | ||
64 | /* The user specified an unknown input format, return NULL. */ | |
65 | g_critical("Error: specified input file format '%s' is " | |
66 | "unknown.", opt); | |
67 | return NULL; | |
68 | } | |
69 | ||
70 | /* Otherwise, try to find an input module that can handle this file. */ | |
71 | for (i = 0; inputs[i]; i++) { | |
72 | if (inputs[i]->format_match(filename)) | |
73 | break; | |
74 | } | |
75 | ||
76 | /* Return NULL if no input module wanted to touch this. */ | |
77 | if (!inputs[i]) { | |
78 | g_critical("Error: no matching input module found."); | |
79 | return NULL; | |
80 | } | |
81 | ||
82 | g_debug("cli: Autodetected '%s' input format for file '%s'.", | |
83 | inputs[i]->id, filename); | |
84 | ||
85 | return inputs[i]; | |
86 | } | |
87 | ||
88 | static void load_input_file_format(void) | |
89 | { | |
90 | GHashTable *fmtargs = NULL; | |
91 | struct stat st; | |
92 | struct sr_input *in; | |
93 | struct sr_input_format *input_format; | |
94 | char *fmtspec = NULL; | |
95 | ||
96 | if (opt_input_format) { | |
97 | fmtargs = parse_generic_arg(opt_input_format, TRUE); | |
98 | fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key"); | |
99 | } | |
100 | ||
101 | if (!(input_format = determine_input_file_format(opt_input_file, | |
102 | fmtspec))) { | |
103 | /* The exact cause was already logged. */ | |
104 | return; | |
105 | } | |
106 | ||
107 | if (fmtargs) | |
108 | g_hash_table_remove(fmtargs, "sigrok_key"); | |
109 | ||
110 | if (stat(opt_input_file, &st) == -1) { | |
111 | g_critical("Failed to load %s: %s", opt_input_file, | |
112 | strerror(errno)); | |
113 | exit(1); | |
114 | } | |
115 | ||
116 | /* Initialize the input module. */ | |
117 | if (!(in = g_try_malloc(sizeof(struct sr_input)))) { | |
118 | g_critical("Failed to allocate input module."); | |
119 | exit(1); | |
120 | } | |
121 | in->format = input_format; | |
122 | in->param = fmtargs; | |
123 | if (in->format->init) { | |
124 | if (in->format->init(in, opt_input_file) != SR_OK) { | |
125 | g_critical("Input format init failed."); | |
126 | exit(1); | |
127 | } | |
128 | } | |
129 | ||
130 | if (select_probes(in->sdi) > 0) | |
131 | return; | |
132 | ||
133 | sr_session_new(); | |
134 | sr_session_datafeed_callback_add(datafeed_in, NULL); | |
135 | if (sr_session_dev_add(in->sdi) != SR_OK) { | |
136 | g_critical("Failed to use device."); | |
137 | sr_session_destroy(); | |
138 | return; | |
139 | } | |
140 | ||
141 | input_format->loadfile(in, opt_input_file); | |
142 | ||
143 | sr_session_destroy(); | |
144 | ||
145 | if (fmtargs) | |
146 | g_hash_table_destroy(fmtargs); | |
147 | } | |
148 | ||
149 | void load_input_file(void) | |
150 | { | |
151 | ||
152 | if (sr_session_load(opt_input_file) == SR_OK) { | |
153 | /* sigrok session file */ | |
154 | sr_session_datafeed_callback_add(datafeed_in, NULL); | |
155 | sr_session_start(); | |
156 | sr_session_run(); | |
157 | sr_session_stop(); | |
158 | } | |
159 | else { | |
160 | /* fall back on input modules */ | |
161 | load_input_file_format(); | |
162 | } | |
163 | } | |
164 |