diff options
Diffstat (limited to 'src/libqmi-glib/qmi-device.c')
-rw-r--r-- | src/libqmi-glib/qmi-device.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/libqmi-glib/qmi-device.c b/src/libqmi-glib/qmi-device.c index d50c5b9..8694e98 100644 --- a/src/libqmi-glib/qmi-device.c +++ b/src/libqmi-glib/qmi-device.c @@ -71,6 +71,7 @@ enum { PROP_FILE, PROP_NO_FILE_CHECK, PROP_PROXY_PATH, + PROP_WWAN_IFACE, PROP_LAST }; @@ -90,6 +91,10 @@ struct _QmiDevicePrivate { gboolean no_file_check; gchar *proxy_path; + /* WWAN interface */ + gboolean no_wwan_check; + gchar *wwan_iface; + /* Implicit CTL client */ QmiClientCtl *client_ctl; guint sync_indication_id; @@ -596,6 +601,96 @@ qmi_device_is_open (QmiDevice *self) } /*****************************************************************************/ +/* WWAN iface name + * Always reload from scratch, to handle possible net interface renames */ + +static void +reload_wwan_iface_name (QmiDevice *self) +{ + const gchar *cdc_wdm_device_name; + static const gchar *driver_names[] = { "usbmisc", "usb" }; + guint i; + + /* Early cleanup */ + g_free (self->priv->wwan_iface); + self->priv->wwan_iface = NULL; + + cdc_wdm_device_name = strrchr (self->priv->path, '/'); + if (!cdc_wdm_device_name) { + g_warning ("[%s] invalid path for cdc-wdm control port", self->priv->path_display); + return; + } + cdc_wdm_device_name++; + + for (i = 0; i < G_N_ELEMENTS (driver_names) && !self->priv->wwan_iface; i++) { + gchar *sysfs_path; + GFile *sysfs_file; + GFileEnumerator *enumerator; + GError *error = NULL; + + sysfs_path = g_strdup_printf ("/sys/class/%s/%s/device/net/", driver_names[i], cdc_wdm_device_name); + sysfs_file = g_file_new_for_path (sysfs_path); + enumerator = g_file_enumerate_children (sysfs_file, + G_FILE_ATTRIBUTE_STANDARD_NAME, + G_FILE_QUERY_INFO_NONE, + NULL, + &error); + if (!enumerator) { + g_debug ("[%s] cannot enumerate files at path '%s': %s", + self->priv->path_display, + sysfs_path, + error->message); + g_error_free (error); + } else { + GFileInfo *file_info; + + /* Ignore errors when enumerating */ + while ((file_info = g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL) { + const gchar *name; + + name = g_file_info_get_name (file_info); + if (name) { + /* We only expect ONE file in the sysfs directory corresponding + * to this control port, if more found for any reason, warn about it */ + if (self->priv->wwan_iface) + g_warning ("[%s] invalid additional wwan iface found: %s", + self->priv->path_display, name); + else + self->priv->wwan_iface = g_strdup (name); + } + g_object_unref (file_info); + } + + g_object_unref (enumerator); + } + + g_free (sysfs_path); + g_object_unref (sysfs_file); + } + + if (!self->priv->wwan_iface) + g_warning ("[%s] wwan iface not found", self->priv->path_display); +} + +/** + * qmi_device_get_wwan_iface: + * @self: a #QmiDevice. + * + * Get the WWAN interface name associated with this /dev/cdc-wdm control port. + * This value will be loaded the first time it's asked for it. + * + * Returns: UTF-8 encoded network interface name, or %NULL if not available. + */ +const gchar * +qmi_device_get_wwan_iface (QmiDevice *self) +{ + g_return_val_if_fail (QMI_IS_DEVICE (self), NULL); + + reload_wwan_iface_name (self); + return self->priv->wwan_iface; +} + +/*****************************************************************************/ /* Register/Unregister clients that want to receive indications */ static gpointer @@ -2492,6 +2587,10 @@ get_property (GObject *object, case PROP_FILE: g_value_set_object (value, self->priv->file); break; + case PROP_WWAN_IFACE: + reload_wwan_iface_name (self); + g_value_set_string (value, self->priv->wwan_iface); + break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; @@ -2574,6 +2673,7 @@ finalize (GObject *object) g_free (self->priv->path); g_free (self->priv->path_display); g_free (self->priv->proxy_path); + g_free (self->priv->wwan_iface); if (self->priv->input_source) { g_source_destroy (self->priv->input_source); @@ -2638,6 +2738,14 @@ qmi_device_class_init (QmiDeviceClass *klass) G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY); g_object_class_install_property (object_class, PROP_PROXY_PATH, properties[PROP_PROXY_PATH]); + properties[PROP_WWAN_IFACE] = + g_param_spec_string (QMI_DEVICE_WWAN_IFACE, + "WWAN iface", + "Name of the WWAN network interface associated with the control port.", + NULL, + G_PARAM_READABLE); + g_object_class_install_property (object_class, PROP_WWAN_IFACE, properties[PROP_WWAN_IFACE]); + /** * QmiClientDms::event-report: * @object: A #QmiClientDms. |