From bd6e2d579949aede258c673caf4b1eb39b95e172 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 23 Aug 2010 07:57:03 -0700 Subject: [PATCH] iwlwifi: use antenna A only under high BT load When bluetooth indicated high load, we should use only antenna A in 2.4 GHz for management frames. Add this condition to iwl_toggle_tx_ant() to make sure it'll always be met. Note that scanning has a separate way of forcing the antenna, because we should scan on antenna A only regardless of BT traffic load. Signed-off-by: Johannes Berg Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 72eda7e8a00d..5e8fc720c570 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -147,6 +147,10 @@ u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid) int i; u8 ind = ant; + if (priv->band == IEEE80211_BAND_2GHZ && + priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) + return 0; + for (i = 0; i < RATE_ANT_NUM - 1; i++) { ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; if (valid & BIT(ind)) -- GitLab