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iwlwifi: disable disconnected antenna for advanced bt coex

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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 <shanyu.zhao@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Shanyu Zhao 2010-11-10 09:56:49 -08:00 • committed by John W. Linville
parent 3031242b31
commit 6fe8efb221
1 changed files with 11 additions and 8 deletions
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19
drivers/net/wireless/iwlwifi/iwl-agn-calib.c
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@ -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<<i)))
data->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 /