diff options
| author | Daniel Drake <dsd@gentoo.org> | 2007-07-27 15:43:24 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:47:39 -0700 |
| commit | d9430a32886f70c0c16d67c525f6cda2df7906ee (patch) | |
| tree | 9d531b23206e62033a6bb9d03ac572ce6ab4c7f1 /net/mac80211/ieee80211_sta.c | |
| parent | 7e9ed18874f0df84b6651f0636e1cfdac43bc610 (diff) | |
| download | lwn-d9430a32886f70c0c16d67c525f6cda2df7906ee.tar.gz lwn-d9430a32886f70c0c16d67c525f6cda2df7906ee.zip | |
[MAC80211]: implement ERP info change notifications
zd1211rw and bcm43xx are interested in being notified when ERP IE conditions
change, so that they can reprogram a register which affects how control frames
are transmitted.
This patch adds an interface similar to the one that can be found in softmac.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/ieee80211_sta.c')
| -rw-r--r-- | net/mac80211/ieee80211_sta.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 0f5f8131bd71..33414f160538 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -319,6 +319,7 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) struct ieee80211_if_sta *ifsta = &sdata->u.sta; int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0; + u8 changes = 0; if (use_protection != sdata->use_protection) { if (net_ratelimit()) { @@ -329,6 +330,7 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) MAC_ARG(ifsta->bssid)); } sdata->use_protection = use_protection; + changes |= IEEE80211_ERP_CHANGE_PROTECTION; } if (!preamble_mode != sdata->short_preamble) { @@ -341,7 +343,11 @@ static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value) MAC_ARG(ifsta->bssid)); } sdata->short_preamble = !preamble_mode; + changes |= IEEE80211_ERP_CHANGE_PREAMBLE; } + + if (changes) + ieee80211_erp_info_change_notify(dev, changes); } @@ -400,7 +406,6 @@ static void ieee80211_set_associated(struct net_device *dev, struct ieee80211_if_sta *ifsta, int assoc) { union iwreq_data wrqu; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (ifsta->associated == assoc) return; @@ -428,8 +433,7 @@ static void ieee80211_set_associated(struct net_device *dev, ieee80211_sta_send_associnfo(dev, ifsta); } else { netif_carrier_off(dev); - sdata->short_preamble = 0; - sdata->use_protection = 0; + ieee80211_reset_erp_info(dev); memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); } wrqu.ap_addr.sa_family = ARPHRD_ETHER; |