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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>
This commit is contained in:
Emmanuel Grumbach
Johannes Berg
parent
fb3ceb8175
commit
931d416049
@ -2,7 +2,7 @@ obj-$(CONFIG_IWLMVM) += iwlmvm.o
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iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o
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iwlmvm-y += utils.o rx.o tx.o binding.o quota.o sta.o
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iwlmvm-y += scan.o time-event.o rs.o
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iwlmvm-y += power.o
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iwlmvm-y += power.o bt-coex.o
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iwlmvm-y += led.o
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iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o
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iwlmvm-$(CONFIG_PM_SLEEP) += d3.o
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242
drivers/net/wireless/iwlwifi/mvm/bt-coex.c
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242
drivers/net/wireless/iwlwifi/mvm/bt-coex.c
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@ -0,0 +1,242 @@
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/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2013 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2013 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#include "fw-api-bt-coex.h"
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#include "iwl-modparams.h"
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#include "mvm.h"
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#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \
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[(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \
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((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS))
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static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1,
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BT_COEX_PRIO_TBL_PRIO_BYPASS, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2,
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BT_COEX_PRIO_TBL_PRIO_BYPASS, 1),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1,
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BT_COEX_PRIO_TBL_PRIO_LOW, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2,
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BT_COEX_PRIO_TBL_PRIO_LOW, 1),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1,
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BT_COEX_PRIO_TBL_PRIO_HIGH, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2,
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BT_COEX_PRIO_TBL_PRIO_HIGH, 1),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM,
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BT_COEX_PRIO_TBL_DISABLED, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52,
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BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24,
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BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0),
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EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE,
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BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0),
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0, 0, 0, 0, 0, 0,
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};
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#undef EVENT_PRIO_ANT
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int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
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{
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return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
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sizeof(struct iwl_bt_coex_prio_tbl_cmd),
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&iwl_bt_prio_tbl);
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}
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static int iwl_send_bt_env(struct iwl_mvm *mvm, u8 action, u8 type)
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{
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struct iwl_bt_coex_prot_env_cmd env_cmd;
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int ret;
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env_cmd.action = action;
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env_cmd.type = type;
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ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PROT_ENV, CMD_SYNC,
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sizeof(env_cmd), &env_cmd);
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if (ret)
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IWL_ERR(mvm, "failed to send BT env command\n");
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return ret;
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}
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enum iwl_bt_kill_msk {
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BT_KILL_MSK_DEFAULT,
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BT_KILL_MSK_SCO_HID_A2DP,
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BT_KILL_MSK_REDUCED_TXPOW,
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BT_KILL_MSK_MAX,
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};
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static const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
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0xffffffff,
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0xfffffc00,
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0,
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};
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static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
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0xffffffff,
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0xfffffc00,
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0,
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};
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#define IWL_BT_DEFAULT_BOOST (0xf0f0f0f0)
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/* Tight Coex */
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static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = {
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaeaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xcc00ff28),
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cpu_to_le32(0x0000aaaa),
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cpu_to_le32(0xcc00aaaa),
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cpu_to_le32(0x0000aaaa),
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cpu_to_le32(0xc0004000),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0xf0005000),
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cpu_to_le32(0xf0005000),
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};
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/* Loose Coex */
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static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = {
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaeaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xcc00ff28),
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cpu_to_le32(0x0000aaaa),
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cpu_to_le32(0xcc00aaaa),
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cpu_to_le32(0x0000aaaa),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0xf0005000),
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cpu_to_le32(0xf0005000),
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};
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/* Full concurrency */
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static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = {
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0xaaaaaaaa),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000),
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};
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/* BT Antenna Coupling Threshold (dB) */
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#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35)
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int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
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{
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struct iwl_bt_coex_cmd cmd = {
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.max_kill = 5,
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.bt3_time_t7_value = 1,
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.bt3_prio_sample_time = 2,
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.bt3_timer_t2_value = 0xc,
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};
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int ret;
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cmd.flags = iwlwifi_mod_params.bt_coex_active ?
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BT_COEX_NW : BT_COEX_DISABLE;
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cmd.flags |= iwlwifi_mod_params.bt_ch_announce ?
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BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN : 0;
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cmd.flags |= BT_SYNC_2_BT_DISABLE;
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cmd.valid_bit_msk = cpu_to_le16(BT_VALID_ENABLE |
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BT_VALID_BT_PRIO_BOOST |
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BT_VALID_MAX_KILL |
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BT_VALID_3W_TMRS |
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BT_VALID_KILL_ACK |
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BT_VALID_KILL_CTS |
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BT_VALID_REDUCED_TX_POWER |
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BT_VALID_LUT);
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if (iwlwifi_mod_params.ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD)
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memcpy(&cmd.decision_lut, iwl_loose_lookup,
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sizeof(iwl_tight_lookup));
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else
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memcpy(&cmd.decision_lut, iwl_tight_lookup,
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sizeof(iwl_tight_lookup));
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cmd.bt_prio_boost = cpu_to_le32(IWL_BT_DEFAULT_BOOST);
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cmd.kill_ack_msk =
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cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
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cmd.kill_cts_msk =
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cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
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/* go to CALIB state in internal BT-Coex state machine */
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ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN,
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BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
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if (ret)
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return ret;
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ret = iwl_send_bt_env(mvm, BT_COEX_ENV_CLOSE,
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BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
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if (ret)
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return ret;
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return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC,
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sizeof(cmd), &cmd);
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}
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@ -309,6 +309,10 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
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goto error;
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}
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ret = iwl_send_bt_prio_tbl(mvm);
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if (ret)
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goto error;
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if (read_nvm) {
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/* Read nvm */
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ret = iwl_nvm_init(mvm);
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@ -414,6 +418,14 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
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if (ret)
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goto error;
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ret = iwl_send_bt_prio_tbl(mvm);
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if (ret)
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goto error;
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ret = iwl_send_bt_init_conf(mvm);
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if (ret)
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goto error;
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/* Send phy db control command and then phy db calibration*/
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ret = iwl_send_phy_db_data(mvm->phy_db);
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if (ret)
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@ -504,4 +504,8 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
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void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif, int idx);
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/* BT Coex */
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int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
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int iwl_send_bt_init_conf(struct iwl_mvm *mvm);
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#endif /* __IWL_MVM_H__ */
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