zd1211rw: initial IBSS support

this adds initial IBSS support for the zydas zd1211rw:
convince driver that it can do IBSS mode. add mac80211 beacon_update callback.

IBSS merge and TSF updates don't work yet, but it makes the driver usable in
ad-hoc networks.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 69c45ca99051..ee4331229f1f 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -751,6 +751,7 @@ static int zd_op_add_interface(struct ieee80211_hw *hw,
         case IEEE80211_IF_TYPE_MNTR:
         case IEEE80211_IF_TYPE_MESH_POINT:
         case IEEE80211_IF_TYPE_STA:
+        case IEEE80211_IF_TYPE_IBSS:
                 mac->type = conf->type;
                 break;
         default:
@@ -781,7 +782,8 @@ static int zd_op_config_interface(struct ieee80211_hw *hw,
         struct zd_mac *mac = zd_hw_mac(hw);
         int associated;
 
-        if (mac->type == IEEE80211_IF_TYPE_MESH_POINT) {
+        if (mac->type == IEEE80211_IF_TYPE_MESH_POINT ||
+            mac->type == IEEE80211_IF_TYPE_IBSS) {
                 associated = true;
                 if (conf->beacon) {
                         zd_mac_config_beacon(hw, conf->beacon);
@@ -941,6 +943,18 @@ static void zd_op_bss_info_changed(struct ieee80211_hw *hw,
         }
 }
 
+static int zd_op_beacon_update(struct ieee80211_hw *hw,
+                               struct sk_buff *skb,
+                               struct ieee80211_tx_control *ctl)
+{
+        struct zd_mac *mac = zd_hw_mac(hw);
+        zd_mac_config_beacon(hw, skb);
+        kfree_skb(skb);
+        zd_set_beacon_interval(&mac->chip, BCN_MODE_IBSS |
+                                        hw->conf.beacon_int);
+        return 0;
+}
+
 static const struct ieee80211_ops zd_ops = {
         .tx                     = zd_op_tx,
         .start                  = zd_op_start,
@@ -951,6 +965,7 @@ static const struct ieee80211_ops zd_ops = {
         .config_interface       = zd_op_config_interface,
         .configure_filter       = zd_op_configure_filter,
         .bss_info_changed       = zd_op_bss_info_changed,
+        .beacon_update          = zd_op_beacon_update,
 };
 
 struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)