main.c

   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 <stdlib.h>
  21 #include <glib.h>
  22 #include "sigrok-cli.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         gboolean enabled;
  54         GSList *selected_channels, *l, *channels;
  55
  56         channels = sr_dev_inst_channels_get(sdi);
  57
  58         if (opt_channels) {
  59                 if (!(selected_channels = parse_channelstring(sdi, opt_channels)))
  60                         return SR_ERR;
  61
  62                 for (l = channels; l; l = l->next) {
  63                         ch = l->data;
  64                         enabled = (g_slist_find(selected_channels, ch) != NULL);
  65                         if (sr_dev_channel_enable(ch, enabled) != SR_OK)
  66                                 return SR_ERR;
  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 gboolean config_key_has_cap(struct sr_dev_driver *driver,
  77                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
  78                 uint32_t key, uint32_t capability)
  79 {
  80         GVariant *gvar_opts;
  81         const uint32_t *opts;
  82         gsize num_opts, i;
  83         gboolean result;
  84
  85         if (sr_config_list(driver, sdi, cg, SR_CONF_DEVICE_OPTIONS,
  86                         &gvar_opts) != SR_OK)
  87                 return FALSE;
  88
  89         opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t));
  90         result = FALSE;
  91         for (i = 0; i < num_opts; i++) {
  92                 if ((opts[i] & SR_CONF_MASK) == key) {
  93                         if ((opts[i] & capability) == capability)
  94                                 result = TRUE;
  95                         else
  96                                 result = FALSE;
  97                         break;
  98                 }
  99         }
 100         g_variant_unref(gvar_opts);
 101
 102         return result;
 103 }
 104
 105 int maybe_config_get(struct sr_dev_driver *driver,
 106                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
 107                 uint32_t key, GVariant **gvar)
 108 {
 109         if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_GET))
 110                 return sr_config_get(driver, sdi, cg, key, gvar);
 111
 112         return SR_ERR_NA;
 113 }
 114
 115 int maybe_config_set(struct sr_dev_driver *driver,
 116                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
 117                 uint32_t key, GVariant *gvar)
 118 {
 119         if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_SET))
 120                 return sr_config_set(sdi, cg, key, gvar);
 121
 122         return SR_ERR_NA;
 123 }
 124
 125 int maybe_config_list(struct sr_dev_driver *driver,
 126                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
 127                 uint32_t key, GVariant **gvar)
 128 {
 129         if (config_key_has_cap(driver, sdi, cg, key, SR_CONF_LIST))
 130                 return sr_config_list(driver, sdi, cg, key, gvar);
 131
 132         return SR_ERR_NA;
 133 }
 134
 135 static void get_option(void)
 136 {
 137         struct sr_dev_inst *sdi;
 138         struct sr_channel_group *cg;
 139         const struct sr_config_info *ci;
 140         GSList *devices;
 141         GVariant *gvar;
 142         GHashTable *devargs;
 143         int ret;
 144         char *s;
 145         struct sr_dev_driver *driver;
 146
 147         if (!(devices = device_scan())) {
 148                 g_critical("No devices found.");
 149                 return;
 150         }
 151         sdi = devices->data;
 152         g_slist_free(devices);
 153
 154         driver = sr_dev_inst_driver_get(sdi);
 155
 156         if (sr_dev_open(sdi) != SR_OK) {
 157                 g_critical("Failed to open device.");
 158                 return;
 159         }
 160
 161         cg = select_channel_group(sdi);
 162         if (!(ci = sr_config_info_name_get(opt_get)))
 163                 g_critical("Unknown option '%s'", opt_get);
 164
 165         if ((devargs = parse_generic_arg(opt_config, FALSE)))
 166                 set_dev_options(sdi, devargs);
 167         else devargs = NULL;
 168
 169         if ((ret = maybe_config_get(driver, sdi, cg, ci->key, &gvar)) != SR_OK)
 170                 g_critical("Failed to get '%s': %s", opt_get, sr_strerror(ret));
 171         s = g_variant_print(gvar, FALSE);
 172         printf("%s\n", s);
 173         g_free(s);
 174
 175         g_variant_unref(gvar);
 176         sr_dev_close(sdi);
 177         if (devargs)
 178                 g_hash_table_destroy(devargs);
 179 }
 180
 181 static void set_options(void)
 182 {
 183         struct sr_dev_inst *sdi;
 184         GSList *devices;
 185         GHashTable *devargs;
 186
 187         if (!opt_config) {
 188                 g_critical("No setting specified.");
 189                 return;
 190         }
 191
 192         if (!(devargs = parse_generic_arg(opt_config, FALSE)))
 193                 return;
 194
 195         if (!(devices = device_scan())) {
 196                 g_critical("No devices found.");
 197                 return;
 198         }
 199         sdi = devices->data;
 200         g_slist_free(devices);
 201
 202         if (sr_dev_open(sdi) != SR_OK) {
 203                 g_critical("Failed to open device.");
 204                 return;
 205         }
 206
 207         set_dev_options(sdi, devargs);
 208
 209         sr_dev_close(sdi);
 210         g_hash_table_destroy(devargs);
 211
 212 }
 213
 214 int main(int argc, char **argv)
 215 {
 216         g_log_set_default_handler(logger, NULL);
 217
 218         if (parse_options(argc, argv)) {
 219                 return 1;
 220         }
 221
 222         /* Set the loglevel (amount of messages to output) for libsigrok. */
 223         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
 224                 goto done;
 225
 226         if (sr_init(&sr_ctx) != SR_OK)
 227                 goto done;
 228
 229 #ifdef HAVE_SRD
 230         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
 231         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
 232                 goto done;
 233
 234         if (opt_pds) {
 235                 if (srd_init(NULL) != SRD_OK)
 236                         goto done;
 237                 if (srd_session_new(&srd_sess) != SRD_OK) {
 238                         g_critical("Failed to create new decode session.");
 239                         goto done;
 240                 }
 241                 if (register_pds(opt_pds, opt_pd_annotations) != 0)
 242                         goto done;
 243                 if (setup_pd_stack(opt_pds, opt_pd_stack, opt_pd_annotations) != 0)
 244                         goto done;
 245
 246                 /* Only one output type is ever shown. */
 247                 if (opt_pd_binary) {
 248                         if (setup_pd_binary(opt_pd_binary) != 0)
 249                                 goto done;
 250                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_BINARY,
 251                                         show_pd_binary, NULL) != SRD_OK)
 252                                 goto done;
 253                 } else if (opt_pd_meta) {
 254                         if (setup_pd_meta(opt_pd_meta) != 0)
 255                                 goto done;
 256                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_META,
 257                                         show_pd_meta, NULL) != SRD_OK)
 258                                 goto done;
 259                 } else {
 260                         if (opt_pd_annotations)
 261                                 if (setup_pd_annotations(opt_pd_annotations) != 0)
 262                                         goto done;
 263                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
 264                                         show_pd_annotations, NULL) != SRD_OK)
 265                                 goto done;
 266                 }
 267         }
 268 #endif
 269
 270         if (opt_version)
 271                 show_version();
 272         else if (opt_input_format && opt_show)
 273                 show_input();
 274         else if (opt_output_format && opt_show)
 275                 show_output();
 276         else if (opt_transform_module && opt_show)
 277                 show_transform();
 278         else if (opt_scan_devs)
 279                 show_dev_list();
 280 #ifdef HAVE_SRD
 281         else if (opt_pds && opt_show)
 282                 show_pd_detail();
 283 #endif
 284         else if (opt_show)
 285                 show_dev_detail();
 286         else if (opt_input_file)
 287                 load_input_file();
 288         else if (opt_get)
 289                 get_option();
 290         else if (opt_set)
 291                 set_options();
 292         else if (opt_samples || opt_time || opt_frames || opt_continuous)
 293                 run_session();
 294         else
 295                 show_help();
 296
 297 #ifdef HAVE_SRD
 298         if (opt_pds)
 299                 srd_exit();
 300 #endif
 301
 302 done:
 303         if (sr_ctx)
 304                 sr_exit(sr_ctx);
 305
 306         return 0;
 307 }