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iwlwifi: mvm: configure power management in D3 

Configure power management in the D3 firmware by sending
the power table command to it when suspending; this uses
some values that are more suitable to a low power state.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Alexander Bondar 2013-04-23 13:52:10 +03:00 committed by Johannes Berg
parent 5b1dbfc3aa
commit ee1e84225f
2 changed files with 13 additions and 3 deletions
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4
drivers/net/wireless/iwlwifi/mvm/d3.c
View File

@ -1007,6 +1007,10 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
if (ret)
goto out;
ret = iwl_mvm_power_update_mode(mvm, vif);
if (ret)
goto out;
/* must be last -- this switches firmware state */
ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,
sizeof(d3_cfg_cmd), &d3_cfg_cmd);

12
drivers/net/wireless/iwlwifi/mvm/power.c
View File

@ -138,7 +138,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
/* Check skip over DTIM conditions */
if (!radar_detect && (dtimper <= 10) &&
(iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) {
(iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
cmd->num_skip_dtim = cpu_to_le32(2);
}
@ -150,8 +151,13 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
cmd->keep_alive_seconds = keep_alive;
cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
} else {
cmd->rx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
cmd->tx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
}
}
int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)