diff options
| author |   Arik Nemtsov <arik@wizery.com> | 2011-09-28 14:12:51 +0300 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-09-30 15:57:06 -0400 |
| commit | 768db3438b4b48a33d073093bb364e624409cab7 (patch) | |
| tree | 72e2d33d14484d46c16a2880df9c5d633ce7683c /net/mac80211/util.c | |
| parent | nl80211: support sending TDLS commands/frames (diff) | |
| download | linux-dev-768db3438b4b48a33d073093bb364e624409cab7.tar.xz linux-dev-768db3438b4b48a33d073093bb364e624409cab7.zip | |
mac80211: standardize adding supported rates IEs
Relocate the mesh implementation of adding the (extended) supported
rates IE to util.c, anticipating its use by other parts of mac80211.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 2c9dc360dc6d..9d4f14621bb0 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1364,3 +1364,60 @@ void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) _ieee80211_enable_rssi_reports(sdata, 0, 0); } EXPORT_SYMBOL(ieee80211_disable_rssi_reports); + +int ieee80211_add_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + int rate; + u8 i, rates, *pos; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + rates = sband->n_bitrates; + if (rates > 8) + rates = 8; + + if (skb_tailroom(skb) < rates + 2) + return -ENOMEM; + + pos = skb_put(skb, rates + 2); + *pos++ = WLAN_EID_SUPP_RATES; + *pos++ = rates; + for (i = 0; i < rates; i++) { + rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); + } + + return 0; +} + +int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + int rate; + u8 i, exrates, *pos; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + exrates = sband->n_bitrates; + if (exrates > 8) + exrates -= 8; + else + exrates = 0; + + if (skb_tailroom(skb) < exrates + 2) + return -ENOMEM; + + if (exrates) { + pos = skb_put(skb, exrates + 2); + *pos++ = WLAN_EID_EXT_SUPP_RATES; + *pos++ = exrates; + for (i = 8; i < sband->n_bitrates; i++) { + rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); + } + } + return 0; +} |