iwlagn: rx antenna diversity

For the new 1x1 devices, hw and uCode will support rx
antenna diversity, but we need to indicate 1x1 device to
AccessPoint to make sure it won't use MIMO.

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

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 10a536969eb6..8a789241704f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -182,7 +182,11 @@ static int iwl6000_hw_set_hw_params(struct iwl_priv *priv)
         priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
 
         priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
-        priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
+        if (priv->cfg->rx_with_siso_diversity)
+                priv->hw_params.rx_chains_num = 1;
+        else
+                priv->hw_params.rx_chains_num =
+                        num_of_ant(priv->cfg->valid_rx_ant);
         priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
         priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
 
@@ -841,6 +845,7 @@ struct iwl_cfg iwl130_bgn_cfg = {
         .adv_pm = true,
         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
         .scan_tx_antennas[IEEE80211_BAND_2GHZ] = ANT_A,
+        .rx_with_siso_diversity = true,
 };
 
 struct iwl_cfg iwl130_bg_cfg = {
@@ -859,6 +864,7 @@ struct iwl_cfg iwl130_bg_cfg = {
         .adv_pm = true,
         /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
         .scan_tx_antennas[IEEE80211_BAND_2GHZ] = ANT_A,
+        .rx_with_siso_diversity = true,
 };
 
 MODULE_FIRMWARE(IWL6000_MODULE_FIRMWARE(IWL6000_UCODE_API_MAX));