+static const char *chandef_get_width(enum nl80211_chan_width width)
+{
+ switch (width) {
+ case NL80211_CHAN_WIDTH_20_NOHT:
+ return "20 (noht)";
+ case NL80211_CHAN_WIDTH_20:
+ return "20";
+ case NL80211_CHAN_WIDTH_40:
+ return "40";
+ case NL80211_CHAN_WIDTH_80:
+ return "80";
+ case NL80211_CHAN_WIDTH_80P80:
+ return "80+80";
+ case NL80211_CHAN_WIDTH_160:
+ return "160";
+ case NL80211_CHAN_WIDTH_5:
+ return "5";
+ case NL80211_CHAN_WIDTH_10:
+ return "10";
+ }
+ return "?";
+}
+
+static void ath10k_config_chan(struct ath10k *ar)
+{
+ struct ath10k_vif *arvif;
+ bool monitor_was_enabled;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ ath10k_dbg(ATH10K_DBG_MAC,
+ "mac config channel to %dMHz (cf1 %dMHz cf2 %dMHz width %s)\n",
+ ar->chandef.chan->center_freq,
+ ar->chandef.center_freq1,
+ ar->chandef.center_freq2,
+ chandef_get_width(ar->chandef.width));
+
+ /* First stop monitor interface. Some FW versions crash if there's a
+ * lone monitor interface. */
+ monitor_was_enabled = ar->monitor_enabled;
+
+ if (ar->monitor_enabled)
+ ath10k_monitor_stop(ar);
+
+ list_for_each_entry(arvif, &ar->arvifs, list) {
+ if (!arvif->is_started)
+ continue;
+
+ if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+ continue;
+
+ ret = ath10k_vdev_stop(arvif);
+ if (ret) {
+ ath10k_warn("could not stop vdev %d (%d)\n",
+ arvif->vdev_id, ret);
+ continue;
+ }
+ }
+
+ /* all vdevs are now stopped - now attempt to restart them */
+
+ list_for_each_entry(arvif, &ar->arvifs, list) {
+ if (!arvif->is_started)
+ continue;
+
+ if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+ continue;
+
+ ret = ath10k_vdev_start(arvif);
+ if (ret) {
+ ath10k_warn("could not start vdev %d (%d)\n",
+ arvif->vdev_id, ret);
+ continue;
+ }
+
+ if (!arvif->is_up)
+ continue;
+
+ ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
+ arvif->bssid);
+ if (ret) {
+ ath10k_warn("could not bring vdev up %d (%d)\n",
+ arvif->vdev_id, ret);
+ continue;
+ }
+ }
+
+ if (monitor_was_enabled)
+ ath10k_monitor_start(ar, ar->monitor_vdev_id);
+}
+