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iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it

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We should not allow diversity when BT Coex needs the second
antenna. Thermal Throttling can also request to stop using
the second antenna. Honour those requests.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-05-18 09:16:45 +03:00
parent 894981ed43
commit 5c90422439
3 changed files with 35 additions and 2 deletions
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1
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -1008,6 +1008,7 @@ int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
enum iwl_mvm_smps_type_request req_type,
enum ieee80211_smps_mode smps_request);
bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm);
/* Low latency */
int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

3
drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
View File

@ -163,8 +163,7 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
* between the two antennas is sufficiently different to impact
* performance.
*/
if (active_cnt == 1 && num_of_ant(mvm->fw->valid_rx_ant) > 1 &&
!mvm->cfg->rx_with_siso_diversity) {
if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed(mvm)) {
idle_cnt = 2;
active_cnt = 2;
}

33
drivers/net/wireless/iwlwifi/mvm/utils.c
View File

@ -650,6 +650,39 @@ void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
ieee80211_request_smps(vif, smps_mode);
}
static void iwl_mvm_diversity_iter(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
bool *result = _data;
int i;
for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC ||
mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
*result = false;
}
}
bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
{
bool result = true;
lockdep_assert_held(&mvm->mutex);
if (num_of_ant(mvm->fw->valid_rx_ant) == 1)
return false;
if (!mvm->cfg->rx_with_siso_diversity)
return false;
ieee80211_iterate_active_interfaces_atomic(
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_diversity_iter, &result);
return result;
}
int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
bool value)
{