From 508b08e7121f2083c9e9cd82f10b9088b6bc13fb Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 12 Jun 2009 13:22:50 -0700 Subject: [PATCH] iwlwifi: check control channel for pure 40MHz for pure 40MHz mode, set the control channel location if provided, but not like Mixed mode; if information is not provided, still allow 40MHz operation. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index b2875fe..b122eed 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -826,9 +826,18 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); if (iwl_is_fat_tx_allowed(priv, NULL)) { /* pure 40 fat */ - if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) + if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; - else { + /* Note: control channel is opposite of extension channel */ + switch (ht_info->extension_chan_offset) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; + break; + } + } else { /* Note: control channel is opposite of extension channel */ switch (ht_info->extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: -- 2.7.4