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 <config.h>
  21 #include <stdlib.h>
  22 #include <glib.h>
  23 #include "sigrok-cli.h"
  24
  25 struct sr_context *sr_ctx = NULL;
  26 #ifdef HAVE_SRD
  27 struct srd_session *srd_sess = NULL;
  28 #endif
  29
  30 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
  31                    const gchar *message, gpointer cb_data)
  32 {
  33         (void)log_domain;
  34         (void)cb_data;
  35
  36         /*
  37          * All messages, warnings, errors etc. go to stderr (not stdout) in
  38          * order to not mess up the CLI tool data output, e.g. VCD output.
  39          */
  40         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
  41                         || opt_loglevel > SR_LOG_WARN) {
  42                 fprintf(stderr, "%s\n", message);
  43                 fflush(stderr);
  44         }
  45
  46         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL))
  47                 exit(1);
  48
  49 }
  50
  51 int select_channels(struct sr_dev_inst *sdi)
  52 {
  53         struct sr_channel *ch;
  54         gboolean enabled;
  55         GSList *selected_channels, *l, *channels;
  56
  57         channels = sr_dev_inst_channels_get(sdi);
  58
  59         if (opt_channels) {
  60                 if (!(selected_channels = parse_channelstring(sdi, opt_channels)))
  61                         return SR_ERR;
  62
  63                 for (l = channels; l; l = l->next) {
  64                         ch = l->data;
  65                         enabled = (g_slist_find(selected_channels, ch) != NULL);
  66                         if (sr_dev_channel_enable(ch, enabled) != SR_OK)
  67                                 return SR_ERR;
  68                 }
  69                 g_slist_free(selected_channels);
  70         }
  71 #ifdef HAVE_SRD
  72         map_pd_channels(sdi);
  73 #endif
  74         return SR_OK;
  75 }
  76
  77 int maybe_config_get(struct sr_dev_driver *driver,
  78                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
  79                 uint32_t key, GVariant **gvar)
  80 {
  81         if (sr_dev_config_capabilities_list(sdi, cg, key) & SR_CONF_GET)
  82                 return sr_config_get(driver, sdi, cg, key, gvar);
  83
  84         return SR_ERR_NA;
  85 }
  86
  87 int maybe_config_set(struct sr_dev_driver *driver,
  88                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
  89                 uint32_t key, GVariant *gvar)
  90 {
  91         (void)driver;
  92
  93         if (sr_dev_config_capabilities_list(sdi, cg, key) & SR_CONF_SET)
  94                 return sr_config_set(sdi, cg, key, gvar);
  95
  96         return SR_ERR_NA;
  97 }
  98
  99 int maybe_config_list(struct sr_dev_driver *driver,
 100                 const struct sr_dev_inst *sdi, struct sr_channel_group *cg,
 101                 uint32_t key, GVariant **gvar)
 102 {
 103         if (sr_dev_config_capabilities_list(sdi, cg, key) & SR_CONF_LIST)
 104                 return sr_config_list(driver, sdi, cg, key, gvar);
 105
 106         return SR_ERR_NA;
 107 }
 108
 109 static void get_option(struct sr_dev_inst *sdi,
 110         struct sr_channel_group *cg, const char *opt)
 111 {
 112         struct sr_dev_driver *driver;
 113         const struct sr_key_info *ci;
 114         int ret;
 115         GVariant *gvar;
 116         const struct sr_key_info *srci, *srmqi, *srmqfi;
 117         uint32_t mq;
 118         uint64_t mask, mqflags;
 119         unsigned int j;
 120         char *s;
 121
 122         driver = sr_dev_inst_driver_get(sdi);
 123
 124         ci = sr_key_info_name_get(SR_KEY_CONFIG, opt);
 125         if (!ci)
 126                 g_critical("Unknown option '%s'", opt);
 127
 128         ret = maybe_config_get(driver, sdi, cg, ci->key, &gvar);
 129         if (ret != SR_OK)
 130                 g_critical("Failed to get '%s': %s", opt, sr_strerror(ret));
 131
 132         srci = sr_key_info_get(SR_KEY_CONFIG, ci->key);
 133         if (srci && srci->datatype == SR_T_MQ) {
 134                 g_variant_get(gvar, "(ut)", &mq, &mqflags);
 135                 if ((srmqi = sr_key_info_get(SR_KEY_MQ, mq)))
 136                         printf("%s", srmqi->id);
 137                 else
 138                         printf("%d", mq);
 139                 for (j = 0, mask = 1; j < 32; j++, mask <<= 1) {
 140                         if (!(mqflags & mask))
 141                                 continue;
 142                         if ((srmqfi = sr_key_info_get(SR_KEY_MQFLAGS, mqflags & mask)))
 143                                 printf("/%s", srmqfi->id);
 144                         else
 145                                 printf("/%" PRIu64, mqflags & mask);
 146                 }
 147                 printf("\n");
 148         } else {
 149                 s = g_variant_print(gvar, FALSE);
 150                 printf("%s\n", s);
 151                 g_free(s);
 152         }
 153
 154         g_variant_unref(gvar);
 155 }
 156
 157 static void get_options(void)
 158 {
 159         GSList *devices;
 160         struct sr_dev_inst *sdi;
 161         size_t get_idx;
 162         char *get_text, *cg_name;
 163         GHashTable *args;
 164         GHashTableIter iter;
 165         gpointer key, value;
 166         struct sr_channel_group *cg;
 167
 168         /* Lookup and open the device. */
 169         devices = device_scan();
 170         if (!devices) {
 171                 g_critical("No devices found.");
 172                 return;
 173         }
 174         sdi = devices->data;
 175         g_slist_free(devices);
 176
 177         if (sr_dev_open(sdi) != SR_OK) {
 178                 g_critical("Failed to open device.");
 179                 return;
 180         }
 181
 182         /* Set configuration values when -c was specified. */
 183         set_dev_options_array(sdi, opt_configs);
 184
 185         /* Get configuration values which were specified by --get. */
 186         for (get_idx = 0; (get_text = opt_gets[get_idx]); get_idx++) {
 187                 args = parse_generic_arg(get_text, FALSE, "channel_group");
 188                 if (!args)
 189                         continue;
 190                 cg_name = g_hash_table_lookup(args, "sigrok_key");
 191                 cg = lookup_channel_group(sdi, cg_name);
 192                 g_hash_table_iter_init(&iter, args);
 193                 while (g_hash_table_iter_next(&iter, &key, &value)) {
 194                         if (g_ascii_strcasecmp(key, "sigrok_key") == 0)
 195                                 continue;
 196                         get_option(sdi, cg, key);
 197                 }
 198         }
 199
 200         /* Close the device. */
 201         sr_dev_close(sdi);
 202 }
 203
 204 static void set_options(void)
 205 {
 206         struct sr_dev_inst *sdi;
 207         GSList *devices;
 208
 209         if (!opt_configs) {
 210                 g_critical("No setting specified.");
 211                 return;
 212         }
 213
 214         if (!(devices = device_scan())) {
 215                 g_critical("No devices found.");
 216                 return;
 217         }
 218         sdi = devices->data;
 219         g_slist_free(devices);
 220
 221         if (sr_dev_open(sdi) != SR_OK) {
 222                 g_critical("Failed to open device.");
 223                 return;
 224         }
 225
 226         set_dev_options_array(sdi, opt_configs);
 227
 228         sr_dev_close(sdi);
 229 }
 230
 231 int main(int argc, char **argv)
 232 {
 233         g_log_set_default_handler(logger, NULL);
 234
 235         if (parse_options(argc, argv)) {
 236                 return 1;
 237         }
 238
 239         /* Set the loglevel (amount of messages to output) for libsigrok. */
 240         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
 241                 goto done;
 242
 243         if (sr_init(&sr_ctx) != SR_OK)
 244                 goto done;
 245
 246 #ifdef HAVE_SRD
 247         if (opt_pd_binary && !opt_pds) {
 248                 g_critical("Option -B will not take effect in the absence of -P.");
 249                 goto done;
 250         }
 251
 252         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
 253         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
 254                 goto done;
 255
 256         if (opt_pds) {
 257                 if (srd_init(NULL) != SRD_OK)
 258                         goto done;
 259                 if (srd_session_new(&srd_sess) != SRD_OK) {
 260                         g_critical("Failed to create new decode session.");
 261                         goto done;
 262                 }
 263                 if (register_pds(opt_pds, opt_pd_annotations) != 0)
 264                         goto done;
 265
 266                 /* Only one output type is ever shown. */
 267                 if (opt_pd_binary) {
 268                         if (setup_pd_binary(opt_pd_binary) != 0)
 269                                 goto done;
 270                         if (setup_binary_stdout() != 0)
 271                                 goto done;
 272                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_BINARY,
 273                                         show_pd_binary, NULL) != SRD_OK)
 274                                 goto done;
 275                 } else if (opt_pd_meta) {
 276                         if (setup_pd_meta(opt_pd_meta) != 0)
 277                                 goto done;
 278                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_META,
 279                                         show_pd_meta, NULL) != SRD_OK)
 280                                 goto done;
 281                 } else {
 282                         if (opt_pd_annotations)
 283                                 if (setup_pd_annotations(opt_pd_annotations) != 0)
 284                                         goto done;
 285                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
 286                                         show_pd_annotations, NULL) != SRD_OK)
 287                                 goto done;
 288                 }
 289                 show_pd_prepare();
 290         }
 291 #endif
 292
 293         if (opt_version)
 294                 show_version();
 295         else if (opt_list_supported)
 296                 show_supported();
 297         else if (opt_list_supported_wiki)
 298                 show_supported_wiki();
 299         else if (opt_input_file && opt_show)
 300                 load_input_file(TRUE);
 301         else if (opt_input_format && opt_show)
 302                 show_input();
 303         else if (opt_output_format && opt_show)
 304                 show_output();
 305         else if (opt_transform_module && opt_show)
 306                 show_transform();
 307         else if (opt_scan_devs)
 308                 show_dev_list();
 309 #ifdef HAVE_SRD
 310         else if (opt_pds && opt_show)
 311                 show_pd_detail();
 312 #endif
 313         else if (opt_show)
 314                 show_dev_detail();
 315         else if (opt_input_file)
 316                 load_input_file(FALSE);
 317         else if (opt_gets)
 318                 get_options();
 319         else if (opt_set)
 320                 set_options();
 321         else if (opt_samples || opt_time || opt_frames || opt_continuous)
 322                 run_session();
 323         else if (opt_list_serial)
 324                 show_serial_ports();
 325         else
 326                 show_help();
 327
 328 #ifdef HAVE_SRD
 329         if (opt_pds)
 330                 show_pd_close();
 331         if (opt_pds)
 332                 srd_exit();
 333 #endif
 334
 335 done:
 336         if (sr_ctx)
 337                 sr_exit(sr_ctx);
 338
 339         return 0;
 340 }