diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2008-12-12 07:27:43 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-12-19 21:22:54 +0100 |
| commit | 094d05dc32fc2930e381189a942016e5561775d9 (patch) | |
| tree | 4deedbcbe196f88cb8d9fe0cd0755775a7ff0939 /net/mac80211/ht.c | |
| parent | nl80211: Add signal strength and bandwith to nl80211station info (diff) | |
| download | linux-094d05dc32fc2930e381189a942016e5561775d9.tar.xz linux-094d05dc32fc2930e381189a942016e5561775d9.zip | |
mac80211: Fix HT channel selection
HT management is done differently for AP and STA modes, unify
to just the ->config() callback since HT is fundamentally a
PHY property and cannot be per-BSS.
Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote
the channel type ( NO_HT, HT20, HT40+, HT40- ).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/ht.c')
| -rw-r--r-- | net/mac80211/ht.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index a1eed7032c9b..5f510a13b9f0 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -98,6 +98,7 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss_ht_conf ht; u32 changed = 0; bool enable_ht = true, ht_changed; + enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; @@ -112,24 +113,36 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, ieee80211_channel_to_frequency(hti->control_chan)) enable_ht = false; - /* - * XXX: This is totally incorrect when there are multiple virtual - * interfaces, needs to be fixed later. - */ - ht_changed = local->hw.conf.ht.enabled != enable_ht; + if (enable_ht) { + channel_type = NL80211_CHAN_HT20; + + if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) && + (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) && + (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) { + switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + channel_type = NL80211_CHAN_HT40PLUS; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + channel_type = NL80211_CHAN_HT40MINUS; + break; + } + } + } + + ht_changed = local->hw.conf.ht.enabled != enable_ht || + channel_type != local->hw.conf.ht.channel_type; + + local->oper_channel_type = channel_type; local->hw.conf.ht.enabled = enable_ht; + if (ht_changed) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT); /* disable HT */ if (!enable_ht) return 0; - ht.secondary_channel_offset = - hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET; - ht.width_40_ok = - !(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) && - (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) && - (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY); + ht.operation_mode = le16_to_cpu(hti->operation_mode); /* if bss configuration changed store the new one */ |