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44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From: Felix Fietkau <nbd@openwrt.org>
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Date: Wed, 22 Oct 2014 17:55:50 +0200
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Subject: [PATCH] mac80211: add support for driver tx power reporting
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The configured tx power is often limited by hardware capabilities,
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channel settings, antenna configuration, etc.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/include/net/mac80211.h
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+++ b/include/net/mac80211.h
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@@ -2838,6 +2838,9 @@ enum ieee80211_roc_type {
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* @get_expected_throughput: extract the expected throughput towards the
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* specified station. The returned value is expressed in Kbps. It returns 0
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* if the RC algorithm does not have proper data to provide.
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+ *
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+ * @get_txpower: get current maximum tx power (in dBm) based on configuration
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+ * and hardware limits.
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*/
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struct ieee80211_ops {
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void (*tx)(struct ieee80211_hw *hw,
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@@ -3039,6 +3042,8 @@ struct ieee80211_ops {
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int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
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void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
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u32 (*get_expected_throughput)(struct ieee80211_sta *sta);
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+ int (*get_txpower)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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+ int *dbm);
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};
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/**
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--- a/net/mac80211/cfg.c
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+++ b/net/mac80211/cfg.c
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@@ -2081,6 +2081,9 @@ static int ieee80211_get_tx_power(struct
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struct ieee80211_local *local = wiphy_priv(wiphy);
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struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
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+ if (local->ops->get_txpower)
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+ return local->ops->get_txpower(&local->hw, &sdata->vif, dbm);
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+
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if (!local->use_chanctx)
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*dbm = local->hw.conf.power_level;
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else
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