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authorFelix Fietkau <nbd@openwrt.org>2014-10-26 00:32:53 +0200
committerJohannes Berg <johannes.berg@intel.com>2014-11-04 10:15:09 +0100
commit5b3dc42b1b0db0264bbbe4ae44c15ab97bfd1e93 (patch)
tree3a53814de5743eb3fdf491609a050a417632c9f4 /net
parent0563921abf01a7a38b5f670c3de05dc0b0b8617d (diff)
downloadop-kernel-dev-5b3dc42b1b0db0264bbbe4ae44c15ab97bfd1e93.zip
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mac80211: add support for driver tx power reporting
The configured tx power is often limited by hardware capabilities, channel settings, antenna configuration, etc. Signed-off-by: Felix Fietkau <nbd@openwrt.org> [fix tracing compilation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/cfg.c3
-rw-r--r--net/mac80211/driver-ops.h14
-rw-r--r--net/mac80211/trace.h27
3 files changed, 44 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index fbcc209..b9659b8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2133,6 +2133,9 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy,
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ if (local->ops->get_txpower)
+ return drv_get_txpower(local, sdata, dbm);
+
if (!local->use_chanctx)
*dbm = local->hw.conf.power_level;
else
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 3df28e0..d1e128e 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1279,4 +1279,18 @@ static inline u32 drv_get_expected_throughput(struct ieee80211_local *local,
return ret;
}
+static inline int drv_get_txpower(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata, int *dbm)
+{
+ int ret;
+
+ if (!local->ops->get_txpower)
+ return -EOPNOTSUPP;
+
+ ret = local->ops->get_txpower(&local->hw, &sdata->vif, dbm);
+ trace_drv_get_txpower(local, sdata, *dbm, ret);
+
+ return ret;
+}
+
#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 976606a..aeeace5 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2150,6 +2150,33 @@ DEFINE_EVENT(local_sdata_evt, drv_post_channel_switch,
TP_ARGS(local, sdata)
);
+TRACE_EVENT(drv_get_txpower,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ int dbm, int ret),
+
+ TP_ARGS(local, sdata, dbm, ret),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __field(int, dbm)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ __entry->dbm = dbm;
+ __entry->ret = ret;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT VIF_PR_FMT " dbm:%d ret:%d",
+ LOCAL_PR_ARG, VIF_PR_ARG, __entry->dbm, __entry->ret
+ )
+);
+
#ifdef CONFIG_MAC80211_MESSAGE_TRACING
#undef TRACE_SYSTEM
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