iwlwifi: fix beacon notification parsing

The beacon notification changed between 4965 and
agn because the embedded TX response changed, but
iwlwifi was never updated to know about this.
Update it now so the IBSS manager status will be
tracked correctly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index ace0b98d91ae..8998ed134d1a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2266,6 +2266,29 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
         spin_unlock_irqrestore(&priv->sta_lock, flags);
 }
 
+static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
+                                    struct iwl_rx_mem_buffer *rxb)
+{
+        struct iwl_rx_packet *pkt = rxb_addr(rxb);
+        struct iwl4965_beacon_notif *beacon = (void *)pkt->u.raw;
+#ifdef CONFIG_IWLWIFI_DEBUG
+        u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
+
+        IWL_DEBUG_RX(priv, "beacon status %#x, retries:%d ibssmgr:%d "
+                "tsf:0x%.8x%.8x rate:%d\n",
+                le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
+                beacon->beacon_notify_hdr.failure_frame,
+                le32_to_cpu(beacon->ibss_mgr_status),
+                le32_to_cpu(beacon->high_tsf),
+                le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+        priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+
+        if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+                queue_work(priv->workqueue, &priv->beacon_update);
+}
+
 static int iwl4965_calc_rssi(struct iwl_priv *priv,
                              struct iwl_rx_phy_res *rx_resp)
 {
@@ -2308,6 +2331,7 @@ static void iwl4965_rx_handler_setup(struct iwl_priv *priv)
         priv->rx_handlers[REPLY_RX] = iwlagn_rx_reply_rx;
         /* Tx response */
         priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
+        priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
 
         /* set up notification wait support */
         spin_lock_init(&priv->_agn.notif_wait_lock);