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>
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 437e38a..e05eb1f 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -622,35 +622,35 @@
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 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 @@
}
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 @@
(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)