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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
20 #include "sigrok-cli.h"
21 #include <stdlib.h>
22 #include <glib.h>
23
24 struct sr_context *sr_ctx = NULL;
25 #ifdef HAVE_SRD
26 struct srd_session *srd_sess = NULL;
27 #endif
28
29 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
30                    const gchar *message, gpointer cb_data)
31 {
32         (void)log_domain;
33         (void)cb_data;
34
35         /*
36          * All messages, warnings, errors etc. go to stderr (not stdout) in
37          * order to not mess up the CLI tool data output, e.g. VCD output.
38          */
39         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
40                         || opt_loglevel > SR_LOG_WARN) {
41                 fprintf(stderr, "%s\n", message);
42                 fflush(stderr);
43         }
44
45         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL))
46                 exit(1);
47
48 }
49
50 int select_channels(struct sr_dev_inst *sdi)
51 {
52         struct sr_channel *ch;
53         GSList *selected_channels, *l, *channels;
54
55         channels = sr_dev_inst_channels_get(sdi);
56
57         if (opt_channels) {
58                 if (!(selected_channels = parse_channelstring(sdi, opt_channels)))
59                         return SR_ERR;
60
61                 for (l = channels; l; l = l->next) {
62                         ch = l->data;
63                         if (g_slist_find(selected_channels, ch))
64                                 ch->enabled = TRUE;
65                         else
66                                 ch->enabled = FALSE;
67                 }
68                 g_slist_free(selected_channels);
69         }
70 #ifdef HAVE_SRD
71         map_pd_channels(sdi);
72 #endif
73         return SR_OK;
74 }
75
76 static void get_option(void)
77 {
78         struct sr_dev_inst *sdi;
79         struct sr_channel_group *cg;
80         const struct sr_config_info *ci;
81         GSList *devices;
82         GVariant *gvar;
83         GHashTable *devargs;
84         int ret;
85         char *s;
86         struct sr_dev_driver *driver;
87
88         if (!(devices = device_scan())) {
89                 g_critical("No devices found.");
90                 return;
91         }
92         sdi = devices->data;
93         g_slist_free(devices);
94
95         driver = sr_dev_inst_driver_get(sdi);
96
97         if (sr_dev_open(sdi) != SR_OK) {
98                 g_critical("Failed to open device.");
99                 return;
100         }
101
102         cg = select_channel_group(sdi);
103         if (!(ci = sr_config_info_name_get(opt_get)))
104                 g_critical("Unknown option '%s'", opt_get);
105
106         if ((devargs = parse_generic_arg(opt_config, FALSE)))
107                 set_dev_options(sdi, devargs);
108         else devargs = NULL;
109
110         if ((ret = sr_config_get(driver, sdi, cg, ci->key, &gvar)) != SR_OK)
111                 g_critical("Failed to get '%s': %s", opt_get, sr_strerror(ret));
112         s = g_variant_print(gvar, FALSE);
113         printf("%s\n", s);
114         g_free(s);
115
116         g_variant_unref(gvar);
117         sr_dev_close(sdi);
118         if (devargs)
119                 g_hash_table_destroy(devargs);
120 }
121
122 static void set_options(void)
123 {
124         struct sr_dev_inst *sdi;
125         GSList *devices;
126         GHashTable *devargs;
127
128         if (!opt_config) {
129                 g_critical("No setting specified.");
130                 return;
131         }
132
133         if (!(devargs = parse_generic_arg(opt_config, FALSE)))
134                 return;
135
136         if (!(devices = device_scan())) {
137                 g_critical("No devices found.");
138                 return;
139         }
140         sdi = devices->data;
141         g_slist_free(devices);
142
143         if (sr_dev_open(sdi) != SR_OK) {
144                 g_critical("Failed to open device.");
145                 return;
146         }
147
148         set_dev_options(sdi, devargs);
149
150         sr_dev_close(sdi);
151         g_hash_table_destroy(devargs);
152
153 }
154
155 int main(int argc, char **argv)
156 {
157         g_log_set_default_handler(logger, NULL);
158
159         if (parse_options(argc, argv)) {
160                 return 1;
161         }
162
163         /* Set the loglevel (amount of messages to output) for libsigrok. */
164         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
165                 goto done;
166
167         if (sr_init(&sr_ctx) != SR_OK)
168                 goto done;
169
170 #ifdef HAVE_SRD
171         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
172         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
173                 goto done;
174
175         if (opt_pds) {
176                 if (srd_init(NULL) != SRD_OK)
177                         goto done;
178                 if (srd_session_new(&srd_sess) != SRD_OK) {
179                         g_critical("Failed to create new decode session.");
180                         goto done;
181                 }
182                 if (register_pds(opt_pds, opt_pd_annotations) != 0)
183                         goto done;
184                 if (setup_pd_stack(opt_pds, opt_pd_stack, opt_pd_annotations) != 0)
185                         goto done;
186
187                 /* Only one output type is ever shown. */
188                 if (opt_pd_binary) {
189                         if (setup_pd_binary(opt_pd_binary) != 0)
190                                 goto done;
191                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_BINARY,
192                                         show_pd_binary, NULL) != SRD_OK)
193                                 goto done;
194                 } else if (opt_pd_meta) {
195                         if (setup_pd_meta(opt_pd_meta) != 0)
196                                 goto done;
197                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_META,
198                                         show_pd_meta, NULL) != SRD_OK)
199                                 goto done;
200                 } else {
201                         if (opt_pd_annotations)
202                                 if (setup_pd_annotations(opt_pd_annotations) != 0)
203                                         goto done;
204                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
205                                         show_pd_annotations, NULL) != SRD_OK)
206                                 goto done;
207                 }
208         }
209 #endif
210
211         if (opt_version)
212                 show_version();
213         else if (opt_input_format && opt_show)
214                 show_input();
215         else if (opt_output_format && opt_show)
216                 show_output();
217         else if (opt_scan_devs)
218                 show_dev_list();
219 #ifdef HAVE_SRD
220         else if (opt_pds && opt_show)
221                 show_pd_detail();
222 #endif
223         else if (opt_show)
224                 show_dev_detail();
225         else if (opt_input_file)
226                 load_input_file();
227         else if (opt_get)
228                 get_option();
229         else if (opt_set)
230                 set_options();
231         else if (opt_samples || opt_time || opt_frames || opt_continuous)
232                 run_session();
233         else
234                 show_help();
235
236 #ifdef HAVE_SRD
237         if (opt_pds)
238                 srd_exit();
239 #endif
240
241 done:
242         if (sr_ctx)
243                 sr_exit(sr_ctx);
244
245         return 0;
246 }