From 6fe8efb2211fe61caa7b0e1c36c521670b8a10a9 Mon Sep 17 00:00:00 2001 From: Shanyu Zhao Date: Wed, 10 Nov 2010 09:56:49 -0800 Subject: [PATCH] iwlwifi: disable disconnected antenna for advanced bt coex Disconnected antenna algorithm is used to find out which antennas are disconnected. It should be disabled for devices that support advanced bluetooth coexist. Signed-off-by: Shanyu Zhao Signed-off-by: Wey-Yi Guy Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-calib.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c index b4cfc3c..d16bb5e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c @@ -801,13 +801,7 @@ static void iwl_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig, * To be safe, simply mask out any chains that we know * are not on the device. */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && - priv->bt_full_concurrent) { - /* operated as 1x1 in full concurrency mode */ - active_chains &= first_antenna(priv->hw_params.valid_rx_ant); - } else - active_chains &= priv->hw_params.valid_rx_ant; + active_chains &= priv->hw_params.valid_rx_ant; num_tx_chains = 0; for (i = 0; i < NUM_RX_CHAINS; i++) { @@ -985,7 +979,16 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp) return; /* Analyze signal for disconnected antenna */ - iwl_find_disconn_antenna(priv, average_sig, data); + if (priv->cfg->bt_params && + priv->cfg->bt_params->advanced_bt_coexist) { + /* Disable disconnected antenna algorithm for advanced + bt coex, assuming valid antennas are connected */ + data->active_chains = priv->hw_params.valid_rx_ant; + for (i = 0; i < NUM_RX_CHAINS; i++) + if (!(data->active_chains & (1<disconn_array[i] = 1; + } else + iwl_find_disconn_antenna(priv, average_sig, data); /* Analyze noise for rx balance */ average_noise[0] = data->chain_noise_a / -- 2.7.4