]>
Commit | Line | Data |
---|---|---|
2be182e6 BV |
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 | 21 | #include "config.h" |
a8b4041a | 22 | #include <sys/types.h> |
8d52f788 | 23 | #include <sys/stat.h> |
a8b4041a BV |
24 | #include <fcntl.h> |
25 | #include <unistd.h> | |
8d52f788 DH |
26 | #include <errno.h> |
27 | #include <stdlib.h> | |
28 | #include <string.h> | |
2be182e6 | 29 | #include <glib.h> |
2be182e6 | 30 | |
a8b4041a | 31 | #define BUFSIZE 16384 |
2be182e6 | 32 | |
a8b4041a | 33 | static void load_input_file_module(void) |
2be182e6 | 34 | { |
4bf77ec6 | 35 | struct sr_session *session; |
a8b4041a BV |
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; | |
41 | GString *buf; | |
42 | int fd; | |
43 | ssize_t len; | |
44 | char *mod_id; | |
2be182e6 | 45 | |
a8b4041a BV |
46 | if (!sr_input_list()) |
47 | g_critical("No supported input formats available."); | |
2be182e6 | 48 | |
a8b4041a BV |
49 | mod_id = NULL; |
50 | mod_args = NULL; | |
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"); | |
2be182e6 BV |
54 | } |
55 | ||
a8b4041a BV |
56 | buf = g_string_sized_new(BUFSIZE); |
57 | if (mod_id) { | |
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); | |
65 | } else | |
66 | mod_opts = NULL; | |
67 | if (!(in = sr_input_new(imod, mod_opts))) | |
68 | g_critical("Error: failed to initialize input module."); | |
69 | if (mod_opts) | |
70 | g_hash_table_destroy(mod_opts); | |
71 | if (mod_args) | |
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, | |
75 | strerror(errno)); | |
76 | } else { | |
47f97410 BV |
77 | if (strcmp(opt_input_file, "-")) { |
78 | /* | |
79 | * An actual filename: let the input modules try to | |
80 | * identify the file. | |
81 | */ | |
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); | |
85 | } else { | |
86 | /* | |
87 | * Taking input from a pipe: let the input modules try | |
88 | * to identify the stream content. | |
89 | */ | |
90 | if (!strcmp(opt_input_file, "-")) { | |
91 | /* stdin */ | |
92 | fd = 0; | |
93 | } else { | |
94 | if ((fd = open(opt_input_file, O_RDONLY)) == -1) | |
95 | g_critical("Failed to load %s: %s.", opt_input_file, | |
96 | strerror(errno)); | |
97 | } | |
98 | if ((len = read(fd, buf->str, BUFSIZE)) < 1) | |
99 | g_critical("Failed to read %s: %s.", opt_input_file, | |
100 | strerror(errno)); | |
101 | buf->len = len; | |
102 | in = sr_input_scan_buffer(buf); | |
103 | } | |
104 | if (!in) | |
a8b4041a | 105 | g_critical("Error: no input module found for this file."); |
2be182e6 | 106 | } |
a8b4041a | 107 | sdi = sr_input_dev_inst_get(in); |
2be182e6 | 108 | |
a8b4041a | 109 | if (select_channels(sdi) != SR_OK) |
2be182e6 BV |
110 | return; |
111 | ||
4bf77ec6 BV |
112 | sr_session_new(&session); |
113 | sr_session_datafeed_callback_add(session, &datafeed_in, NULL); | |
a8b4041a | 114 | if (sr_session_dev_add(session, sdi) != SR_OK) { |
2be182e6 | 115 | g_critical("Failed to use device."); |
4bf77ec6 | 116 | sr_session_destroy(session); |
2be182e6 BV |
117 | return; |
118 | } | |
119 | ||
a8b4041a BV |
120 | while(TRUE) { |
121 | g_string_truncate(buf, 0); | |
122 | len = read(fd, buf->str, BUFSIZE); | |
123 | if (len < 0) | |
124 | g_critical("Read failed: %s", strerror(errno)); | |
125 | buf->len = len; | |
126 | if (sr_input_send(in, buf) != SR_OK) | |
127 | break; | |
128 | if (len < BUFSIZE) | |
129 | break; | |
130 | } | |
131 | sr_input_free(in); | |
132 | g_string_free(buf, TRUE); | |
2be182e6 | 133 | |
4bf77ec6 | 134 | sr_session_destroy(session); |
2be182e6 | 135 | |
2be182e6 BV |
136 | } |
137 | ||
138 | void load_input_file(void) | |
139 | { | |
4bf77ec6 | 140 | struct sr_session *session; |
e1ec80fa | 141 | struct sr_dev_inst *sdi; |
a8b4041a | 142 | GSList *devices; |
e1ec80fa | 143 | int ret; |
2be182e6 | 144 | |
a48ddcc1 | 145 | if (strcmp(opt_input_file, "-") || sr_session_load(opt_input_file, &session) == SR_OK) { |
2be182e6 | 146 | /* sigrok session file */ |
4bf77ec6 BV |
147 | ret = sr_session_dev_list(session, &devices); |
148 | if (ret != SR_OK || !devices->data) { | |
e1ec80fa | 149 | g_critical("Failed to access session device."); |
4bf77ec6 | 150 | sr_session_destroy(session); |
e1ec80fa DE |
151 | return; |
152 | } | |
4bf77ec6 | 153 | sdi = devices->data; |
029d73fe | 154 | if (select_channels(sdi) != SR_OK) { |
4bf77ec6 | 155 | sr_session_destroy(session); |
e1ec80fa DE |
156 | return; |
157 | } | |
4bf77ec6 BV |
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); | |
2be182e6 BV |
162 | } |
163 | else { | |
164 | /* fall back on input modules */ | |
a8b4041a | 165 | load_input_file_module(); |
2be182e6 BV |
166 | } |
167 | } |