diff options
author | Sujith <Sujith.Manoharan@atheros.com> | 2008-11-27 09:46:27 +0530 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2008-12-05 09:32:59 -0500 |
commit | e11602b7813502bf363c40cdb5a8c4b96d4bbc96 (patch) | |
tree | f5cf351d596f9e99dc6cdf83fb1faec9de0e18a5 /drivers/net/wireless/ath9k/main.c | |
parent | cb3da8ccc464409e3b947557cdac4cd0b1241c4c (diff) |
ath9k: Handle channel initialization for AP mode
Hostapd now passes the HT parameters through the config()
callback, use these to set the appropriate channel in AP mode.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
-rw-r--r-- | drivers/net/wireless/ath9k/main.c | 60 |
1 files changed, 43 insertions, 17 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 437e38a3c6d..e05eb1f0789 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -622,35 +622,35 @@ static int ath_get_channel(struct ath_softc *sc, return -1; } +/* ext_chan_offset: (-1, 0, 1) (below, none, above) */ + static u32 ath_get_extchanmode(struct ath_softc *sc, struct ieee80211_channel *chan, - struct ieee80211_bss_conf *bss_conf) + int ext_chan_offset, + enum ath9k_ht_macmode tx_chan_width) { u32 chanmode = 0; - u8 ext_chan_offset = bss_conf->ht.secondary_channel_offset; - enum ath9k_ht_macmode tx_chan_width = (bss_conf->ht.width_40_ok) ? - ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20; switch (chan->band) { case IEEE80211_BAND_2GHZ: - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) && + if ((ext_chan_offset == 0) && (tx_chan_width == ATH9K_HT_MACMODE_20)) chanmode = CHANNEL_G_HT20; - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) && + if ((ext_chan_offset == 1) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_G_HT40PLUS; - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) && + if ((ext_chan_offset == -1) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_G_HT40MINUS; break; case IEEE80211_BAND_5GHZ: - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) && + if ((ext_chan_offset == 0) && (tx_chan_width == ATH9K_HT_MACMODE_20)) chanmode = CHANNEL_A_HT20; - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) && + if ((ext_chan_offset == 1) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_A_HT40PLUS; - if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) && + if ((ext_chan_offset == -1) && (tx_chan_width == ATH9K_HT_MACMODE_2040)) chanmode = CHANNEL_A_HT40MINUS; break; @@ -841,6 +841,18 @@ static void ath9k_ht_conf(struct ath_softc *sc, } } +static inline int ath_sec_offset(u8 ext_offset) +{ + if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) + return 0; + else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) + return 1; + else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) + return -1; + + return 0; +} + static void ath9k_bss_assoc_info(struct ath_softc *sc, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf) @@ -892,13 +904,14 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc, } if (hw->conf.ht.enabled) { - sc->sc_ah->ah_channels[pos].chanmode = - ath_get_extchanmode(sc, curchan, bss_conf); + int offset = + ath_sec_offset(bss_conf->ht.secondary_channel_offset); + sc->tx_chan_width = (bss_conf->ht.width_40_ok) ? + ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20; - if (bss_conf->ht.width_40_ok) - sc->tx_chan_width = ATH9K_HT_MACMODE_2040; - else - sc->tx_chan_width = ATH9K_HT_MACMODE_20; + sc->sc_ah->ah_channels[pos].chanmode = + ath_get_extchanmode(sc, curchan, + offset, sc->tx_chan_width); } else { sc->sc_ah->ah_channels[pos].chanmode = (curchan->band == IEEE80211_BAND_2GHZ) ? @@ -2171,9 +2184,22 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) (curchan->band == IEEE80211_BAND_2GHZ) ? CHANNEL_G : CHANNEL_A; - if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) + if ((sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) && + (conf->ht.enabled)) { + sc->tx_chan_width = (!!conf->ht.sec_chan_offset) ? + ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20; + + sc->sc_ah->ah_channels[pos].chanmode = + ath_get_extchanmode(sc, curchan, + conf->ht.sec_chan_offset, + sc->tx_chan_width); + } + + if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) { DPRINTF(sc, ATH_DBG_FATAL, "%s: Unable to set channel\n", __func__); + return -EINVAL; + } } if (changed & IEEE80211_CONF_CHANGE_HT) |