Commit Graph

12 Commits

Author SHA1 Message Date
Emmanuel Grumbach d37cac98ab iwlwifi: mvm: rename iwl_mvm_new_bt_coex_notif
It actually handles a BT coex notification, so rename it
to be more self explained.
Also, this function can always look at mvm->last_bt_notif
provided that the latter is updated on time.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-03 22:49:55 +02:00
Emmanuel Grumbach 9e511c3135 iwlwifi: mvm: beautify code in BT Coex
The iterators don't need to know what bt_kill_msk means.
All they need to know is if reduced Tx power is enabled
on an interface or not. So change the member of the
iterator to be a bool.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-03 22:49:53 +02:00
Emmanuel Grumbach 9166b1eeb7 iwlwifi: mvm: remove BT Coex constraints upon roaming to A band
When we roam to A band, we don't need to constraint WiFi
any more since it is operating on a different band.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-03 22:49:12 +02:00
Emmanuel Grumbach 2b76ef1308 iwlwifi: mvm: implement reduced Tx power
This allows to have better wifi TPT when BT is active under
good RSSI conditions.
Wifi will have better chance to send Acks and Cts even if BT
is active.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-03 22:49:12 +02:00
Emmanuel Grumbach cf69d757a8 iwlwifi: mvm: ignore bt_ch_announce module parameter
This module parameter isn't and won't be used. So ignore
its value and set BT_CH_ANNOUNCE unconditionally.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26 10:32:37 +01:00
Emmanuel Grumbach b926926234 iwlwifi: mvm: tune the move to static SMPS due to BT load
We should disable MIMO only if bt_traffic_load goes up to 3.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20 14:17:12 +01:00
Emmanuel Grumbach a77feb5d46 iwlwifi: mvm: don't support multi-channel inhibition
This feature is not implemented yet in firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20 14:17:06 +01:00
Emmanuel Grumbach 5b7e662ba7 iwlwifi: mvm: fix the {ack,cts}_kill_msk
The masks were wrong. They should be 0xffffffff when SCO,
HID or SNIFF profiles are used. They should be 0xffff0000
in any other case (default) to get a bit more throughput
when the BT profile allows for it.

Fix a debug print on the way.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20 14:15:12 +01:00
Emmanuel Grumbach 1094234284 iwlwifi: mvm: export last bt_notif through debugfs
This will allow to track how BT core updates the driver.
This is required to debug the BT Coexistence mechanism.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:48:00 +01:00
Emmanuel Grumbach 7da052b818 iwlwifi: mvm: update SMPS when BT gets active
When BT traffic load gets higher, we want to avoid using the
shared antenna. In order to do so, we need to tell the AP
that we don't support MIMO any more, or at least not all
the time: in short, use the SMPS to achieve this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:47:59 +01:00
Emmanuel Grumbach f421f9c3b2 iwlwifi: mvm: handle BT-coex notification
The BT-Coex notification is sent by the fw when there are
updates wrt. BT activity. Driver action might be taken
based on the info in this notification.

For now, update the Ack/Cts_kill_msk if HID / SCO / A2DP
profiles are active.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:47:59 +01:00
Emmanuel Grumbach 931d416049 iwlwifi: mvm: begin basic BT-Coex implementation
Send the PRIO table before the calibrations. This table
tells the fw what priority to give to what (WiFi / BT)
according to events.

Send a hardcoded BT_COEX command to the fw to enable basic
BT coexistence.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:47:58 +01:00