Refactor main source into separate files

[sigrok-cli.git] / device.c

diff --git a/device.c b/device.c
new file mode 100644 (file)
index 0000000..2dc8308
--- /dev/null
+++ b/device.c
@@ -0,0 +1,147 @@
+/*
+ * This file is part of the sigrok-cli project.
+ *
+ * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+#include <glib.h>
+#include <libsigrok/libsigrok.h>
+#include "sigrok-cli.h"
+
+extern struct sr_context *sr_ctx;
+extern gchar *opt_drv;
+extern gchar *opt_probe_group;
+
+/* Convert driver options hash to GSList of struct sr_config. */
+static GSList *hash_to_hwopt(GHashTable *hash)
+{
+       const struct sr_config_info *srci;
+       struct sr_config *src;
+       GList *gl, *keys;
+       GSList *opts;
+       char *key, *value;
+
+       keys = g_hash_table_get_keys(hash);
+       opts = NULL;
+       for (gl = keys; gl; gl = gl->next) {
+               key = gl->data;
+               if (!(srci = sr_config_info_name_get(key))) {
+                       g_critical("Unknown option %s", key);
+                       return NULL;
+               }
+               src = g_try_malloc(sizeof(struct sr_config));
+               src->key = srci->key;
+               value = g_hash_table_lookup(hash, key);
+               src->data = g_variant_new_string(value);
+               opts = g_slist_append(opts, src);
+       }
+       g_list_free(keys);
+
+       return opts;
+}
+
+static void free_drvopts(struct sr_config *src)
+{
+       g_variant_unref(src->data);
+       g_free(src);
+}
+
+GSList *device_scan(void)
+{
+       struct sr_dev_driver **drivers, *driver;
+       GHashTable *drvargs;
+       GSList *drvopts, *devices, *tmpdevs, *l;
+       int i;
+       char *drvname;
+
+       if (opt_drv) {
+               drvargs = parse_generic_arg(opt_drv, TRUE);
+               drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
+               g_hash_table_remove(drvargs, "sigrok_key");
+               driver = NULL;
+               drivers = sr_driver_list();
+               for (i = 0; drivers[i]; i++) {
+                       if (strcmp(drivers[i]->name, drvname))
+                               continue;
+                       driver = drivers[i];
+               }
+               if (!driver) {
+                       g_critical("Driver %s not found.", drvname);
+                       g_hash_table_destroy(drvargs);
+                       g_free(drvname);
+                       return NULL;
+               }
+               g_free(drvname);
+               if (sr_driver_init(sr_ctx, driver) != SR_OK) {
+                       g_critical("Failed to initialize driver.");
+                       g_hash_table_destroy(drvargs);
+                       return NULL;
+               }
+               drvopts = NULL;
+               if (g_hash_table_size(drvargs) > 0) {
+                       if (!(drvopts = hash_to_hwopt(drvargs))) {
+                               /* Unknown options, already logged. */
+                               g_hash_table_destroy(drvargs);
+                               return NULL;
+                       }
+               }
+               g_hash_table_destroy(drvargs);
+               devices = sr_driver_scan(driver, drvopts);
+               g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
+       } else {
+               /* No driver specified, let them all scan on their own. */
+               devices = NULL;
+               drivers = sr_driver_list();
+               for (i = 0; drivers[i]; i++) {
+                       driver = drivers[i];
+                       if (sr_driver_init(sr_ctx, driver) != SR_OK) {
+                               g_critical("Failed to initialize driver.");
+                               return NULL;
+                       }
+                       tmpdevs = sr_driver_scan(driver, NULL);
+                       for (l = tmpdevs; l; l = l->next)
+                               devices = g_slist_append(devices, l->data);
+                       g_slist_free(tmpdevs);
+               }
+       }
+
+       return devices;
+}
+
+struct sr_probe_group *select_probe_group(struct sr_dev_inst *sdi)
+{
+       struct sr_probe_group *pg;
+       GSList *l;
+
+       if (!opt_probe_group)
+               return NULL;
+
+       if (!sdi->probe_groups) {
+               g_critical("This device does not have any probe groups.");
+               return NULL;
+       }
+
+       for (l = sdi->probe_groups; l; l = l->next) {
+               pg = l->data;
+               if (!strcasecmp(opt_probe_group, pg->name)) {
+                       return pg;
+               }
+       }
+
+       return NULL;
+}
+