return ret;
}
+static int ath11k_fw_stats_request(struct ath11k *ar,
+ struct stats_request_params *req_param)
+{
+ struct ath11k_base *ab = ar->ab;
+ unsigned long time_left;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ ar->fw_stats_done = false;
+ ath11k_fw_stats_pdevs_free(&ar->fw_stats.pdevs);
+ spin_unlock_bh(&ar->data_lock);
+
+ reinit_completion(&ar->fw_stats_complete);
+
+ ret = ath11k_wmi_send_stats_request_cmd(ar, req_param);
+ if (ret) {
+ ath11k_warn(ab, "could not request fw stats (%d)\n",
+ ret);
+ return ret;
+ }
+
+ time_left = wait_for_completion_timeout(&ar->fw_stats_complete,
+ 1 * HZ);
+
+ if (!time_left)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int ath11k_mac_op_get_txpower(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ int *dbm)
+{
+ struct ath11k *ar = hw->priv;
+ struct ath11k_base *ab = ar->ab;
+ struct stats_request_params req_param = {0};
+ struct ath11k_fw_stats_pdev *pdev;
+ int ret;
+
+ /* Final Tx power is minimum of Target Power, CTL power, Regulatory
+ * Power, PSD EIRP Power. We just know the Regulatory power from the
+ * regulatory rules obtained. FW knows all these power and sets the min
+ * of these. Hence, we request the FW pdev stats in which FW reports
+ * the minimum of all vdev's channel Tx power.
+ */
+ mutex_lock(&ar->conf_mutex);
+
+ if (ar->state != ATH11K_STATE_ON)
+ goto err_fallback;
+
+ req_param.pdev_id = ar->pdev->pdev_id;
+ req_param.stats_id = WMI_REQUEST_PDEV_STAT;
+
+ ret = ath11k_fw_stats_request(ar, &req_param);
+ if (ret) {
+ ath11k_warn(ab, "failed to request fw pdev stats: %d\n", ret);
+ goto err_fallback;
+ }
+
+ spin_lock_bh(&ar->data_lock);
+ pdev = list_first_entry_or_null(&ar->fw_stats.pdevs,
+ struct ath11k_fw_stats_pdev, list);
+ if (!pdev) {
+ spin_unlock_bh(&ar->data_lock);
+ goto err_fallback;
+ }
+
+ /* tx power is set as 2 units per dBm in FW. */
+ *dbm = pdev->chan_tx_power / 2;
+
+ spin_unlock_bh(&ar->data_lock);
+ mutex_unlock(&ar->conf_mutex);
+
+ ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "txpower from firmware %d, reported %d dBm\n",
+ pdev->chan_tx_power, *dbm);
+ return 0;
+
+err_fallback:
+ mutex_unlock(&ar->conf_mutex);
+ /* We didn't get txpower from FW. Hence, relying on vif->bss_conf.txpower */
+ *dbm = vif->bss_conf.txpower;
+ ath11k_dbg(ar->ab, ATH11K_DBG_MAC, "txpower from firmware NaN, reported %d dBm\n",
+ *dbm);
+ return 0;
+}
+
static const struct ieee80211_ops ath11k_ops = {
.tx = ath11k_mac_op_tx,
.start = ath11k_mac_op_start,
#if IS_ENABLED(CONFIG_IPV6)
.ipv6_addr_change = ath11k_mac_op_ipv6_changed,
#endif
+ .get_txpower = ath11k_mac_op_get_txpower,
.set_sar_specs = ath11k_mac_op_set_bios_sar_specs,
.remain_on_channel = ath11k_mac_op_remain_on_channel,
clear_bit(ATH11K_FLAG_MONITOR_VDEV_CREATED, &ar->monitor_flags);
ar->vdev_id_11d_scan = ATH11K_11D_INVALID_VDEV_ID;
init_completion(&ar->completed_11d_scan);
+
+ ath11k_fw_stats_init(ar);
}
return 0;