iwlagn: Add power_level module parameter

Add power_level module parameter to set the default power save level.
Power save level has range from 1 - 5, default power save level is 1.

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

4 files changed, 16 insertions, 3 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 52da53997d4c..efdab6506ae7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -624,6 +624,7 @@ struct iwl_mod_params iwlagn_mod_params = {
         .plcp_check = true,
         .bt_coex_active = true,
         .no_sleep_autoadjust = true,
+        .power_level = IWL_POWER_INDEX_1,
         /* the rest are 0 by default */
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index b719628b4fc7..77ceb8deff75 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3831,6 +3831,11 @@ module_param_named(power_save, iwlagn_mod_params.power_save,
 MODULE_PARM_DESC(power_save,
                  "enable WiFi power management (default: disable)");
 
+module_param_named(power_level, iwlagn_mod_params.power_level,
+                int, S_IRUGO);
+MODULE_PARM_DESC(power_level,
+                 "default power save level (range from 1 - 5, default: 1)");
+
 /*
  * For now, keep using power level 1 instead of automatically
  * adjusting ...
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 6238ac628020..adf9f9b2efb5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -164,6 +164,7 @@ struct iwl_mod_params {
         int led_mode;           /* def: 0 = system default */
         bool no_sleep_autoadjust; /* def: true = disable autoadjust */
         bool power_save;        /* def: false = disable power save */
+        int power_level;        /* def: 1 = power level */
 };
 
 /*
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 970c514623b9..565e57e48be8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -358,9 +358,15 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
                 iwl_static_sleep_cmd(priv, cmd,
                                      priv->power_data.debug_sleep_level_override,
                                      dtimper);
-        else if (iwlagn_mod_params.no_sleep_autoadjust)
-                iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_1, dtimper);
-        else
+        else if (iwlagn_mod_params.no_sleep_autoadjust) {
+                if (iwlagn_mod_params.power_level > IWL_POWER_INDEX_1 &&
+                    iwlagn_mod_params.power_level <= IWL_POWER_INDEX_5)
+                        iwl_static_sleep_cmd(priv, cmd,
+                                iwlagn_mod_params.power_level, dtimper);
+                else
+                        iwl_static_sleep_cmd(priv, cmd,
+                                IWL_POWER_INDEX_1, dtimper);
+        } else
                 iwl_power_fill_sleep_cmd(priv, cmd,
                                          priv->hw->conf.dynamic_ps_timeout,
                                          priv->hw->conf.max_sleep_period);