mac80211: Add HT helper functions
Some refactoring for IBSS HT.
Move HT info and capability IEs building code into separate functions.
Add function to get the channel type from an HT info IE.
Signed-off-by: Alexander Simon <an.alexsimon@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index 94472eb..fab5092 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -103,7 +103,6 @@
u8 *pos;
u32 flags = channel->flags;
u16 cap = sband->ht_cap.cap;
- __le16 tmp;
if (!sband->ht_cap.ht_supported)
return;
@@ -154,34 +153,8 @@
}
/* reserve and fill IE */
-
pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_cap);
- memset(pos, 0, sizeof(struct ieee80211_ht_cap));
-
- /* capability flags */
- tmp = cpu_to_le16(cap);
- memcpy(pos, &tmp, sizeof(u16));
- pos += sizeof(u16);
-
- /* AMPDU parameters */
- *pos++ = sband->ht_cap.ampdu_factor |
- (sband->ht_cap.ampdu_density <<
- IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
-
- /* MCS set */
- memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
- pos += sizeof(sband->ht_cap.mcs);
-
- /* extended capabilities */
- pos += sizeof(__le16);
-
- /* BF capabilities */
- pos += sizeof(__le32);
-
- /* antenna selection */
- pos += sizeof(u8);
+ ieee80211_ie_build_ht_cap(pos, sband, cap);
}
static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,