ath9k: initialize per-channel tx power limits instead of hardcoding them
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index f43a2d9..48b07c3 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -107,12 +107,10 @@
/*
* Update internal channel flags.
*/
-void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
- struct ath9k_channel *ichan)
+void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type)
{
- struct ieee80211_channel *chan = hw->conf.channel;
- struct ieee80211_conf *conf = &hw->conf;
-
ichan->channel = chan->center_freq;
ichan->chan = chan;
@@ -124,9 +122,8 @@
ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
}
- if (conf_is_ht(conf))
- ichan->chanmode = ath9k_get_extchanmode(chan,
- conf->channel_type);
+ if (channel_type != NL80211_CHAN_NO_HT)
+ ichan->chanmode = ath9k_get_extchanmode(chan, channel_type);
}
EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
@@ -142,7 +139,7 @@
chan_idx = curchan->hw_value;
channel = &ah->channels[chan_idx];
- ath9k_cmn_update_ichannel(hw, channel);
+ ath9k_cmn_update_ichannel(channel, curchan, hw->conf.channel_type);
return channel;
}
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index fea3b33..c76c75a 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -62,8 +62,9 @@
int ath9k_cmn_padpos(__le16 frame_control);
int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
-void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
- struct ath9k_channel *ichan);
+void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type);
struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
struct ath_hw *ah);
int ath9k_cmn_count_streams(unsigned int chainmask, int max);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 26b9a16..8266ce1 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1400,7 +1400,9 @@
ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n",
curchan->center_freq);
- ath9k_cmn_update_ichannel(hw, &priv->ah->channels[pos]);
+ ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
+ hw->conf.channel,
+ hw->conf.channel_type);
if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
ath_print(common, ATH_DBG_FATAL,
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 12f4fd7..1b72720 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -642,6 +642,37 @@
return ret;
}
+static void ath9k_init_band_txpower(struct ath_softc *sc, int band)
+{
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *chan;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
+ int i;
+
+ sband = &sc->sbands[band];
+ for (i = 0; i < sband->n_channels; i++) {
+ chan = &sband->channels[i];
+ ah->curchan = &ah->channels[chan->hw_value];
+ ath9k_cmn_update_ichannel(ah->curchan, chan, NL80211_CHAN_HT20);
+ ath9k_hw_set_txpowerlimit(ah, MAX_RATE_POWER, true);
+ chan->max_power = reg->max_power_level / 2;
+ }
+}
+
+static void ath9k_init_txpower_limits(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath9k_channel *curchan = ah->curchan;
+
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
+ ath9k_init_band_txpower(sc, IEEE80211_BAND_2GHZ);
+ if (ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
+ ath9k_init_band_txpower(sc, IEEE80211_BAND_5GHZ);
+
+ ah->curchan = curchan;
+}
+
void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
@@ -736,6 +767,8 @@
if (error != 0)
goto error_rx;
+ ath9k_init_txpower_limits(sc);
+
/* Register with mac80211 */
error = ieee80211_register_hw(hw);
if (error)