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