diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index f9d417410c4c..0c91a89c7807 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -8431,6 +8431,95 @@ static int ath11k_mac_op_remain_on_channel(struct ieee80211_hw *hw, 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, @@ -8481,6 +8570,7 @@ static const struct ieee80211_ops ath11k_ops = { #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, @@ -9094,6 +9184,8 @@ int ath11k_mac_allocate(struct ath11k_base *ab) 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;