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iwlwifi: mvm: Implement BT coex notifications

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Use beacon statistics notification handler
to notify bt coex about rssi changes.
Mac80211's mechanism is not used anymore.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrei Otcheretianski 2013-07-21 17:37:19 +03:00 committed by Johannes Berg
parent 016d27e13b
commit 911222b57b
4 changed files with 39 additions and 15 deletions
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16
drivers/net/wireless/iwlwifi/mvm/bt-coex.c
View File

@ -467,11 +467,14 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
data->reduced_tx_power = false;
/* ... and there is no need to get reports on RSSI any more. */
ieee80211_disable_rssi_reports(vif);
mvmvif->bf_data.last_bt_coex_event = 0;
mvmvif->bf_data.bt_coex_max_thold = 0;
mvmvif->bf_data.bt_coex_min_thold = 0;
return;
}
ave_rssi = ieee80211_ave_rssi(vif);
/* try to get the avg rssi from fw */
ave_rssi = mvmvif->bf_data.ave_beacon_signal;
/* if the RSSI isn't valid, fake it is very low */
if (!ave_rssi)
@ -499,8 +502,13 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
}
/* Begin to monitor the RSSI: it may influence the reduced Tx power */
ieee80211_enable_rssi_reports(vif, BT_DISABLE_REDUCED_TXPOWER_THRESHOLD,
BT_ENABLE_REDUCED_TXPOWER_THRESHOLD);
/* reset previous bt coex event tracking */
mvmvif->bf_data.last_bt_coex_event = 0;
mvmvif->bf_data.bt_coex_max_thold =
BT_ENABLE_REDUCED_TXPOWER_THRESHOLD;
mvmvif->bf_data.bt_coex_min_thold =
BT_DISABLE_REDUCED_TXPOWER_THRESHOLD;
}
static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)

11
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -1578,15 +1578,6 @@ static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
}
static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_rssi_event rssi_event)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
iwl_mvm_bt_rssi_event(mvm, vif, rssi_event);
}
#ifdef CONFIG_NL80211_TESTMODE
static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
@ -1677,8 +1668,6 @@ struct ieee80211_ops iwl_mvm_hw_ops = {
.update_tkip_key = iwl_mvm_mac_update_tkip_key,
.remain_on_channel = iwl_mvm_roc,
.cancel_remain_on_channel = iwl_mvm_cancel_roc,
.rssi_callback = iwl_mvm_mac_rssi_callback,
.add_chanctx = iwl_mvm_add_chanctx,
.remove_chanctx = iwl_mvm_remove_chanctx,
.change_chanctx = iwl_mvm_change_chanctx,

6
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -241,12 +241,18 @@ enum iwl_mvm_smps_type_request {
* @last_beacon_signal: last beacon rssi signal in dbm
* @ave_beacon_signal: average beacon signal
* @last_cqm_event: rssi of the last cqm event
* @bt_coex_min_thold: minimum threshold for BT coex
* @bt_coex_max_thold: maximum threshold for BT coex
* @last_bt_coex_event: rssi of the last BT coex event
*/
struct iwl_mvm_vif_bf_data {
bool bf_enabled;
bool ba_enabled;
s8 ave_beacon_signal;
s8 last_cqm_event;
s8 bt_coex_min_thold;
s8 bt_coex_max_thold;
s8 last_bt_coex_event;
};
/**

21
drivers/net/wireless/iwlwifi/mvm/rx.c
View File

@ -422,6 +422,27 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
mvmvif->bf_data.ave_beacon_signal = sig;
/* BT Coex */
if (mvmvif->bf_data.bt_coex_min_thold !=
mvmvif->bf_data.bt_coex_max_thold) {
last_event = mvmvif->bf_data.last_bt_coex_event;
if (sig > mvmvif->bf_data.bt_coex_max_thold &&
(last_event <= mvmvif->bf_data.bt_coex_min_thold ||
last_event == 0)) {
mvmvif->bf_data.last_bt_coex_event = sig;
IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",
sig);
iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);
} else if (sig < mvmvif->bf_data.bt_coex_min_thold &&
(last_event >= mvmvif->bf_data.bt_coex_max_thold ||
last_event == 0)) {
mvmvif->bf_data.last_bt_coex_event = sig;
IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",
sig);
iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);
}
}
if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
return;