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ath9k: Allow user to change tx power when asked 

We were also changing tx power even when we were not asked to,
this enforces the change only when we are asked nicely. When
not asked we simply try to use the max power, we don't tx power
at all for rate control.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2008-10-22 13:28:45 -07:00 committed by John W. Linville
parent f97e40078e
commit 5c020dc6a0
2 changed files with 9 additions and 2 deletions
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3
drivers/net/wireless/ath9k/main.c
View File

@ -1250,7 +1250,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
sc->sc_ah->ah_channels[pos].chanmode =
ath_get_extchanmode(sc, curchan);
sc->sc_config.txpowlimit = 2 * conf->power_level;
if (changed & IEEE80211_CONF_CHANGE_POWER)
sc->sc_config.txpowlimit = 2 * conf->power_level;
/* set h/w channel */
if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0)

8
drivers/net/wireless/ath9k/xmit.c
View File

@ -230,7 +230,13 @@ static int ath_tx_prepare(struct ath_softc *sc,
txctl->if_id = 0;
txctl->frmlen = skb->len + FCS_LEN - (hdrlen & 3);
txctl->txpower = MAX_RATE_POWER; /* FIXME */
/* Always try at highest power possible unless the the device
* was configured by the user to use another power. */
if (likely(sc->sc_config.txpowlimit == ATH_TXPOWER_MAX))
txctl->txpower = ATH_TXPOWER_MAX;
else
txctl->txpower = sc->sc_config.txpowlimit;
/* Fill Key related fields */