diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2010-10-20 02:09:46 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-15 13:23:15 -0500 |
| commit | babcbc295fee766ca710235e431686fef744d9a6 (patch) | |
| tree | 3ac71fc21561e3dd97a9d370dc8504faa767f01d /drivers/net/wireless/ath/ath9k/init.c | |
| parent | de40f316c01b1ba9535e6dc99f6a67e7655b07da (diff) | |
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 12f4fd79c907..1b72720b36e2 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -642,6 +642,37 @@ err_hw: 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 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid, if (error != 0) goto error_rx; + ath9k_init_txpower_limits(sc); + /* Register with mac80211 */ error = ieee80211_register_hw(hw); if (error) |