iwlwifi: additional items in sensitivity range table

Add more items to sensitivity range table to avoid using hardcoded values.
Initialize the table per device since unique per device information is
required to perform sensitivity calibration.

additional items in sensitivity range table:
   .barker_corr_th_min: Barker correlation threshold minimum
   .barker_corr_th_min_mrc: Barker correlation threshold minimum for MRC
   .nrg_th_cca: Energy threshold for Clear Channel Assessment

Barker codes are a technique used in WLAN encoding for transmission.
MRC is "Maximal Ratio Combining", a technique for optimally combining the
signals from 2 or more receivers to achieve a better signal.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 46af74b86a83..dda1dd6ed40a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -121,6 +121,10 @@ static struct iwl_sensitivity_ranges iwl6000_sensitivity = {
         .auto_corr_max_cck_mrc = 310,
         .nrg_th_cck = 97,
         .nrg_th_ofdm = 100,
+
+        .barker_corr_th_min = 190,
+        .barker_corr_th_min_mrc = 390,
+        .nrg_th_cca = 62,
 };
 
 static int iwl6000_hw_set_hw_params(struct iwl_priv *priv)