Return-path: Received: from mga09.intel.com ([134.134.136.24]:60606 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751238AbXKIICV (ORCPT ); Fri, 9 Nov 2007 03:02:21 -0500 From: Ron Rindjunsky To: linville@tuxdriver.com Cc: johannes@sipsolutions.net, linux-wireless@vger.kernel.org, tomas.winkler@intel.com, flamingice@sourmilk.net, Ron Rindjunsky Subject: [PATCH 07/14] mac80211: adding 802.11n configuration flows Date: Fri, 9 Nov 2007 10:01:59 +0200 Message-Id: <11945953313626-git-send-email-ron.rindjunsky@intel.com> (sfid-20071109_081155_626070_C4FB50A5) In-Reply-To: <11945953313491-git-send-email-ron.rindjunsky@intel.com> References: <1194595326527-git-send-email-ron.rindjunsky@intel.com> <11945953311871-git-send-email-ron.rindjunsky@intel.com> <11945953312850-git-send-email-ron.rindjunsky@intel.com> <11945953312367-git-send-email-ron.rindjunsky@intel.com> <1194595331658-git-send-email-ron.rindjunsky@intel.com> <11945953312456-git-send-email-ron.rindjunsky@intel.com> <11945953313491-git-send-email-ron.rindjunsky@intel.com> Content-Type: text/plain; charset="us-ascii" Sender: linux-wireless-owner@vger.kernel.org List-ID: This patch configures the 802.11n mode of operation internally in ieee80211_conf structure and in the low-level driver as well (through op conf_ht). It does not include AP configuration flows. Signed-off-by: Ron Rindjunsky --- include/net/mac80211.h | 5 ++++ net/mac80211/ieee80211.c | 51 ++++++++++++++++++++++++++++++++++++++++++ net/mac80211/ieee80211_i.h | 5 ++++ net/mac80211/ieee80211_sta.c | 38 +++++++++++++++++++++++++++++++ 4 files changed, 99 insertions(+), 0 deletions(-) Index: wl2_6_24_HT/include/net/mac80211.h =================================================================== --- wl2_6_24_HT.orig/include/net/mac80211.h +++ wl2_6_24_HT/include/net/mac80211.h @@ -1050,6 +1050,8 @@ enum ieee80211_erp_change_flags { * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us. * This is needed only for IBSS mode and the result of this function is * used to determine whether to reply to Probe Requests. + * + * @conf_ht: Configures low level driver with 802.11n HT data. Must be atomic. */ struct ieee80211_ops { int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb, @@ -1095,6 +1097,9 @@ struct ieee80211_ops { struct sk_buff *skb, struct ieee80211_tx_control *control); int (*tx_last_beacon)(struct ieee80211_hw *hw); +#ifdef CONFIG_MAC80211_HT + int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); +#endif /* CONFIG_MAC80211_HT */ }; /** Index: wl2_6_24_HT/net/mac80211/ieee80211.c =================================================================== --- wl2_6_24_HT.orig/net/mac80211/ieee80211.c +++ wl2_6_24_HT/net/mac80211/ieee80211.c @@ -534,6 +534,59 @@ int ieee80211_hw_config(struct ieee80211 return ret; } +#ifdef CONFIG_MAC80211_HT + +/** + * ieee80211_hw_config_ht should be used only after legacy configuration + * has been determined, as ht configuration depends upon the hardware's + * HT abilities for a _specific_ band. + */ +int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht, + struct ieee80211_ht_info *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap) +{ + struct ieee80211_conf *conf = &local->hw.conf; + struct ieee80211_hw_mode *mode = conf->mode; + int i; + + /* HT is not supported */ + if (!mode->ht_info.ht_supported) { + conf->flags &= ~(IEEE80211_CONF_SUPPORT_HT_MODE); + return -EOPNOTSUPP; + } + + /* disable HT */ + if (!enable_ht) { + conf->flags &= ~(IEEE80211_CONF_SUPPORT_HT_MODE); + } else { + conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; + conf->ht_conf.cap = req_ht_cap->cap & mode->ht_info.cap; + conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS); + conf->ht_conf.cap |= + mode->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS; + conf->ht_bss_conf.primary_channel = + req_bss_cap->primary_channel; + conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap; + conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; + for (i = 0; i < 16; i++) + conf->ht_conf.supp_mcs_set[i] = + mode->ht_info.supp_mcs_set[i] & + req_ht_cap->supp_mcs_set[i]; + + /* In STA mode, this gives us indication + * to the AP's mode of operation */ + conf->ht_conf.ht_supported = 1; + conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor; + conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density; + } + + local->ops->conf_ht(local_to_hw(local), &local->hw.conf); + + return 0; +} + +#endif /* CONFIG_MAC80211_HT */ + void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); Index: wl2_6_24_HT/net/mac80211/ieee80211_i.h =================================================================== --- wl2_6_24_HT.orig/net/mac80211/ieee80211_i.h +++ wl2_6_24_HT/net/mac80211/ieee80211_i.h @@ -711,6 +711,11 @@ int ieee80211_if_update_wds(struct net_d void ieee80211_if_setup(struct net_device *dev); struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hwrate); +#ifdef CONFIG_MAC80211_HT +int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht, + struct ieee80211_ht_info *req_ht_cap, + struct ieee80211_ht_bss_info *req_bss_cap); +#endif /* CONFIG_MAC80211_HT */ /* ieee80211_ioctl.c */ extern const struct iw_handler_def ieee80211_iw_handler_def; Index: wl2_6_24_HT/net/mac80211/ieee80211_sta.c =================================================================== --- wl2_6_24_HT.orig/net/mac80211/ieee80211_sta.c +++ wl2_6_24_HT/net/mac80211/ieee80211_sta.c @@ -1451,6 +1451,21 @@ static void ieee80211_rx_mgmt_assoc_resp } sta->supp_rates = rates; +#ifdef CONFIG_MAC80211_HT + if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && + local->ops->conf_ht) { + struct ieee80211_ht_bss_info bss_info; + + ieee80211_ht_cap_ie_to_ht_info( + (struct ieee80211_ht_cap *) + elems.ht_cap_elem, &sta->ht_info); + ieee80211_ht_addt_info_ie_to_ht_bss_info( + (struct ieee80211_ht_addt_info *) + elems.ht_info_elem, &bss_info); + ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info); + } +#endif /* CONFIG_MAC80211_HT */ + rate_control_rate_init(sta, local); if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { @@ -1866,6 +1881,10 @@ static void ieee80211_rx_mgmt_beacon(str struct ieee80211_if_sta *ifsta; size_t baselen; struct ieee802_11_elems elems; +#ifdef CONFIG_MAC80211_HT + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct ieee80211_conf *conf = &local->hw.conf; +#endif /* CONFIG_MAC80211_HT */ ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1); @@ -1888,6 +1907,25 @@ static void ieee80211_rx_mgmt_beacon(str if (elems.erp_info && elems.erp_info_len >= 1) ieee80211_handle_erp_ie(dev, elems.erp_info[0]); +#ifdef CONFIG_MAC80211_HT + if (elems.ht_cap_elem && elems.ht_info_elem && + elems.wmm_param && local->ops->conf_ht && + conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { + struct ieee80211_ht_bss_info bss_info; + + ieee80211_ht_addt_info_ie_to_ht_bss_info( + (struct ieee80211_ht_addt_info *) + elems.ht_info_elem, &bss_info); + /* check if AP changed bss inforamation */ + if ((conf->ht_bss_conf.primary_channel != + bss_info.primary_channel) || + (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) || + (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode)) + ieee80211_hw_config_ht(local, 1, &conf->ht_conf, + &bss_info); + } +#endif /* CONFIG_MAC80211_HT */ + if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, elems.wmm_param_len); --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). 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