967 lines
30 KiB
C
967 lines
30 KiB
C
/******************************************************************************
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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 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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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 <linuxwifi@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 - 2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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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 <linux/ieee80211.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "fw-api-coex.h"
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#include "iwl-modparams.h"
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#include "mvm.h"
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#include "iwl-debug.h"
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/* 20MHz / 40MHz below / 40Mhz above*/
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static const __le64 iwl_ci_mask[][3] = {
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/* dummy entry for channel 0 */
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{cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
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{
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cpu_to_le64(0x0000001FFFULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x00007FFFFFULL),
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},
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{
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cpu_to_le64(0x000000FFFFULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x0003FFFFFFULL),
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},
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{
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cpu_to_le64(0x000003FFFCULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x000FFFFFFCULL),
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},
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{
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cpu_to_le64(0x00001FFFE0ULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x007FFFFFE0ULL),
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},
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{
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cpu_to_le64(0x00007FFF80ULL),
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cpu_to_le64(0x00007FFFFFULL),
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cpu_to_le64(0x01FFFFFF80ULL),
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},
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{
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cpu_to_le64(0x0003FFFC00ULL),
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cpu_to_le64(0x0003FFFFFFULL),
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cpu_to_le64(0x0FFFFFFC00ULL),
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},
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{
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cpu_to_le64(0x000FFFF000ULL),
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cpu_to_le64(0x000FFFFFFCULL),
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cpu_to_le64(0x3FFFFFF000ULL),
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},
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{
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cpu_to_le64(0x007FFF8000ULL),
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cpu_to_le64(0x007FFFFFE0ULL),
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cpu_to_le64(0xFFFFFF8000ULL),
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},
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{
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cpu_to_le64(0x01FFFE0000ULL),
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cpu_to_le64(0x01FFFFFF80ULL),
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cpu_to_le64(0xFFFFFE0000ULL),
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},
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{
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cpu_to_le64(0x0FFFF00000ULL),
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cpu_to_le64(0x0FFFFFFC00ULL),
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cpu_to_le64(0x0ULL),
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},
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{
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cpu_to_le64(0x3FFFC00000ULL),
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cpu_to_le64(0x3FFFFFF000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFFFE000000ULL),
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cpu_to_le64(0xFFFFFF8000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFFF8000000ULL),
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cpu_to_le64(0xFFFFFE0000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFE00000000ULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x0ULL)
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},
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};
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struct corunning_block_luts {
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u8 range;
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__le32 lut20[BT_COEX_CORUN_LUT_SIZE];
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};
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/*
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* Ranges for the antenna coupling calibration / co-running block LUT:
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* LUT0: [ 0, 12[
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* LUT1: [12, 20[
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* LUT2: [20, 21[
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* LUT3: [21, 23[
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* LUT4: [23, 27[
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* LUT5: [27, 30[
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* LUT6: [30, 32[
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* LUT7: [32, 33[
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* LUT8: [33, - [
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*/
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static const struct corunning_block_luts antenna_coupling_ranges[] = {
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{
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.range = 0,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 12,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 20,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 21,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 23,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 27,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 30,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 32,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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{
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.range = 33,
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.lut20 = {
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
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},
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},
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};
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static enum iwl_bt_coex_lut_type
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iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
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{
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struct ieee80211_chanctx_conf *chanctx_conf;
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enum iwl_bt_coex_lut_type ret;
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u16 phy_ctx_id;
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u32 primary_ch_phy_id, secondary_ch_phy_id;
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/*
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* Checking that we hold mvm->mutex is a good idea, but the rate
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* control can't acquire the mutex since it runs in Tx path.
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* So this is racy in that case, but in the worst case, the AMPDU
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* size limit will be wrong for a short time which is not a big
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* issue.
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*/
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rcu_read_lock();
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chanctx_conf = rcu_dereference(vif->chanctx_conf);
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if (!chanctx_conf ||
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chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) {
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rcu_read_unlock();
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return BT_COEX_INVALID_LUT;
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}
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ret = BT_COEX_TX_DIS_LUT;
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if (mvm->cfg->bt_shared_single_ant) {
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rcu_read_unlock();
|
|
return ret;
|
|
}
|
|
|
|
phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
|
|
primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
|
|
secondary_ch_phy_id =
|
|
le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
|
|
|
|
if (primary_ch_phy_id == phy_ctx_id)
|
|
ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
|
|
else if (secondary_ch_phy_id == phy_ctx_id)
|
|
ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
|
|
/* else - default = TX TX disallowed */
|
|
|
|
rcu_read_unlock();
|
|
|
|
return ret;
|
|
}
|
|
|
|
int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
|
|
{
|
|
struct iwl_bt_coex_cmd bt_cmd = {};
|
|
u32 mode;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
|
|
switch (mvm->bt_force_ant_mode) {
|
|
case BT_FORCE_ANT_BT:
|
|
mode = BT_COEX_BT;
|
|
break;
|
|
case BT_FORCE_ANT_WIFI:
|
|
mode = BT_COEX_WIFI;
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
mode = 0;
|
|
}
|
|
|
|
bt_cmd.mode = cpu_to_le32(mode);
|
|
goto send_cmd;
|
|
}
|
|
|
|
mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
|
|
bt_cmd.mode = cpu_to_le32(mode);
|
|
|
|
if (IWL_MVM_BT_COEX_SYNC2SCO)
|
|
bt_cmd.enabled_modules |=
|
|
cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
|
|
|
|
if (iwl_mvm_bt_is_plcr_supported(mvm))
|
|
bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
|
|
|
|
if (iwl_mvm_is_mplut_supported(mvm))
|
|
bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
|
|
|
|
bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
|
|
|
|
send_cmd:
|
|
memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
|
|
memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
|
|
|
|
return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
|
|
}
|
|
|
|
static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
|
|
bool enable)
|
|
{
|
|
struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
|
|
struct iwl_mvm_sta *mvmsta;
|
|
u32 value;
|
|
int ret;
|
|
|
|
mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
|
|
if (!mvmsta)
|
|
return 0;
|
|
|
|
/* nothing to do */
|
|
if (mvmsta->bt_reduced_txpower == enable)
|
|
return 0;
|
|
|
|
value = mvmsta->sta_id;
|
|
|
|
if (enable)
|
|
value |= BT_REDUCED_TX_POWER_BIT;
|
|
|
|
IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
|
|
enable ? "en" : "dis", sta_id);
|
|
|
|
cmd.reduced_txp = cpu_to_le32(value);
|
|
mvmsta->bt_reduced_txpower = enable;
|
|
|
|
ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
|
|
sizeof(cmd), &cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct iwl_bt_iterator_data {
|
|
struct iwl_bt_coex_profile_notif *notif;
|
|
struct iwl_mvm *mvm;
|
|
struct ieee80211_chanctx_conf *primary;
|
|
struct ieee80211_chanctx_conf *secondary;
|
|
bool primary_ll;
|
|
};
|
|
|
|
static inline
|
|
void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
|
|
struct ieee80211_vif *vif,
|
|
bool enable, int rssi)
|
|
{
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
|
|
mvmvif->bf_data.last_bt_coex_event = rssi;
|
|
mvmvif->bf_data.bt_coex_max_thold =
|
|
enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
|
|
mvmvif->bf_data.bt_coex_min_thold =
|
|
enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
|
|
}
|
|
|
|
/* must be called under rcu_read_lock */
|
|
static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
struct iwl_bt_iterator_data *data = _data;
|
|
struct iwl_mvm *mvm = data->mvm;
|
|
struct ieee80211_chanctx_conf *chanctx_conf;
|
|
/* default smps_mode is AUTOMATIC - only used for client modes */
|
|
enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
|
|
u32 bt_activity_grading;
|
|
int ave_rssi;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
break;
|
|
case NL80211_IFTYPE_AP:
|
|
if (!mvmvif->ap_ibss_active)
|
|
return;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
chanctx_conf = rcu_dereference(vif->chanctx_conf);
|
|
|
|
/* If channel context is invalid or not on 2.4GHz .. */
|
|
if ((!chanctx_conf ||
|
|
chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) {
|
|
if (vif->type == NL80211_IFTYPE_STATION) {
|
|
/* ... relax constraints and disable rssi events */
|
|
iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
|
|
smps_mode);
|
|
iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
|
|
false);
|
|
iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
|
|
}
|
|
return;
|
|
}
|
|
|
|
bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
|
|
if (bt_activity_grading >= BT_HIGH_TRAFFIC)
|
|
smps_mode = IEEE80211_SMPS_STATIC;
|
|
else if (bt_activity_grading >= BT_LOW_TRAFFIC)
|
|
smps_mode = IEEE80211_SMPS_DYNAMIC;
|
|
|
|
/* relax SMPS constraints for next association */
|
|
if (!vif->bss_conf.assoc)
|
|
smps_mode = IEEE80211_SMPS_AUTOMATIC;
|
|
|
|
if (mvmvif->phy_ctxt &&
|
|
IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
|
|
mvmvif->phy_ctxt->id))
|
|
smps_mode = IEEE80211_SMPS_AUTOMATIC;
|
|
|
|
IWL_DEBUG_COEX(data->mvm,
|
|
"mac %d: bt_activity_grading %d smps_req %d\n",
|
|
mvmvif->id, bt_activity_grading, smps_mode);
|
|
|
|
if (vif->type == NL80211_IFTYPE_STATION)
|
|
iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
|
|
smps_mode);
|
|
|
|
/* low latency is always primary */
|
|
if (iwl_mvm_vif_low_latency(mvmvif)) {
|
|
data->primary_ll = true;
|
|
|
|
data->secondary = data->primary;
|
|
data->primary = chanctx_conf;
|
|
}
|
|
|
|
if (vif->type == NL80211_IFTYPE_AP) {
|
|
if (!mvmvif->ap_ibss_active)
|
|
return;
|
|
|
|
if (chanctx_conf == data->primary)
|
|
return;
|
|
|
|
if (!data->primary_ll) {
|
|
/*
|
|
* downgrade the current primary no matter what its
|
|
* type is.
|
|
*/
|
|
data->secondary = data->primary;
|
|
data->primary = chanctx_conf;
|
|
} else {
|
|
/* there is low latency vif - we will be secondary */
|
|
data->secondary = chanctx_conf;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* STA / P2P Client, try to be primary if first vif. If we are in low
|
|
* latency mode, we are already in primary and just don't do much
|
|
*/
|
|
if (!data->primary || data->primary == chanctx_conf)
|
|
data->primary = chanctx_conf;
|
|
else if (!data->secondary)
|
|
/* if secondary is not NULL, it might be a GO */
|
|
data->secondary = chanctx_conf;
|
|
|
|
/*
|
|
* don't reduce the Tx power if one of these is true:
|
|
* we are in LOOSE
|
|
* single share antenna product
|
|
* BT is inactive
|
|
* we are not associated
|
|
*/
|
|
if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
|
|
mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
|
|
le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
|
|
iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
|
|
iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
|
|
return;
|
|
}
|
|
|
|
/* 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)
|
|
ave_rssi = -100;
|
|
if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
|
|
if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
|
|
IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
|
|
} else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
|
|
if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
|
|
IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
|
|
}
|
|
|
|
/* Begin to monitor the RSSI: it may influence the reduced Tx power */
|
|
iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
|
|
}
|
|
|
|
static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
|
|
{
|
|
struct iwl_bt_iterator_data data = {
|
|
.mvm = mvm,
|
|
.notif = &mvm->last_bt_notif,
|
|
};
|
|
struct iwl_bt_coex_ci_cmd cmd = {};
|
|
u8 ci_bw_idx;
|
|
|
|
/* Ignore updates if we are in force mode */
|
|
if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
|
|
return;
|
|
|
|
rcu_read_lock();
|
|
ieee80211_iterate_active_interfaces_atomic(
|
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
|
|
iwl_mvm_bt_notif_iterator, &data);
|
|
|
|
if (data.primary) {
|
|
struct ieee80211_chanctx_conf *chan = data.primary;
|
|
if (WARN_ON(!chan->def.chan)) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
|
|
if (chan->def.width < NL80211_CHAN_WIDTH_40) {
|
|
ci_bw_idx = 0;
|
|
} else {
|
|
if (chan->def.center_freq1 >
|
|
chan->def.chan->center_freq)
|
|
ci_bw_idx = 2;
|
|
else
|
|
ci_bw_idx = 1;
|
|
}
|
|
|
|
cmd.bt_primary_ci =
|
|
iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
|
|
cmd.primary_ch_phy_id =
|
|
cpu_to_le32(*((u16 *)data.primary->drv_priv));
|
|
}
|
|
|
|
if (data.secondary) {
|
|
struct ieee80211_chanctx_conf *chan = data.secondary;
|
|
if (WARN_ON(!data.secondary->def.chan)) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
|
|
if (chan->def.width < NL80211_CHAN_WIDTH_40) {
|
|
ci_bw_idx = 0;
|
|
} else {
|
|
if (chan->def.center_freq1 >
|
|
chan->def.chan->center_freq)
|
|
ci_bw_idx = 2;
|
|
else
|
|
ci_bw_idx = 1;
|
|
}
|
|
|
|
cmd.bt_secondary_ci =
|
|
iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
|
|
cmd.secondary_ch_phy_id =
|
|
cpu_to_le32(*((u16 *)data.secondary->drv_priv));
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
/* Don't spam the fw with the same command over and over */
|
|
if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
|
|
if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
|
|
sizeof(cmd), &cmd))
|
|
IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
|
|
memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
|
|
}
|
|
}
|
|
|
|
void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
|
|
|
|
IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
|
|
IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
|
|
IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
|
|
le32_to_cpu(notif->primary_ch_lut));
|
|
IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
|
|
le32_to_cpu(notif->secondary_ch_lut));
|
|
IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
|
|
le32_to_cpu(notif->bt_activity_grading));
|
|
|
|
/* remember this notification for future use: rssi fluctuations */
|
|
memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
|
|
|
|
iwl_mvm_bt_coex_notif_handle(mvm);
|
|
}
|
|
|
|
void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
|
|
enum ieee80211_rssi_event_data rssi_event)
|
|
{
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
int ret;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
/* Ignore updates if we are in force mode */
|
|
if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
|
|
return;
|
|
|
|
/*
|
|
* Rssi update while not associated - can happen since the statistics
|
|
* are handled asynchronously
|
|
*/
|
|
if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
|
|
return;
|
|
|
|
/* No BT - reports should be disabled */
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
|
|
return;
|
|
|
|
IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
|
|
rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
|
|
|
|
/*
|
|
* Check if rssi is good enough for reduced Tx power, but not in loose
|
|
* scheme.
|
|
*/
|
|
if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
|
|
iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
|
|
ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
|
|
false);
|
|
else
|
|
ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
|
|
|
|
if (ret)
|
|
IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
|
|
}
|
|
|
|
#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
|
|
#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
|
|
|
|
u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
|
|
enum iwl_bt_coex_lut_type lut_type;
|
|
|
|
if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC)
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
|
|
|
|
if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
/* tight coex, high bt traffic, reduce AGG time limit */
|
|
return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
|
|
enum iwl_bt_coex_lut_type lut_type;
|
|
|
|
if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
|
|
return true;
|
|
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC)
|
|
return true;
|
|
|
|
/*
|
|
* In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
|
|
* since BT is already killed.
|
|
* In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
|
|
* we Tx.
|
|
* When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
|
|
*/
|
|
lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
|
|
return lut_type != BT_COEX_LOOSE_LUT;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
|
|
{
|
|
/* there is no other antenna, shared antenna is always available */
|
|
if (mvm->cfg->bt_shared_single_ant)
|
|
return true;
|
|
|
|
if (ant & mvm->cfg->non_shared_ant)
|
|
return true;
|
|
|
|
return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
|
|
{
|
|
/* there is no other antenna, shared antenna is always available */
|
|
if (mvm->cfg->bt_shared_single_ant)
|
|
return true;
|
|
|
|
return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
|
|
enum nl80211_band band)
|
|
{
|
|
u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
|
|
|
|
if (band != NL80211_BAND_2GHZ)
|
|
return false;
|
|
|
|
return bt_activity >= BT_LOW_TRAFFIC;
|
|
}
|
|
|
|
u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
|
|
struct ieee80211_tx_info *info, u8 ac)
|
|
{
|
|
__le16 fc = hdr->frame_control;
|
|
bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm);
|
|
|
|
if (info->band != NL80211_BAND_2GHZ)
|
|
return 0;
|
|
|
|
if (unlikely(mvm->bt_tx_prio))
|
|
return mvm->bt_tx_prio - 1;
|
|
|
|
if (likely(ieee80211_is_data(fc))) {
|
|
if (likely(ieee80211_is_data_qos(fc))) {
|
|
switch (ac) {
|
|
case IEEE80211_AC_BE:
|
|
return mplut_enabled ? 1 : 0;
|
|
case IEEE80211_AC_VI:
|
|
return mplut_enabled ? 2 : 3;
|
|
case IEEE80211_AC_VO:
|
|
return 3;
|
|
default:
|
|
return 0;
|
|
}
|
|
} else if (is_multicast_ether_addr(hdr->addr1)) {
|
|
return 3;
|
|
} else
|
|
return 0;
|
|
} else if (ieee80211_is_mgmt(fc)) {
|
|
return ieee80211_is_disassoc(fc) ? 0 : 3;
|
|
} else if (ieee80211_is_ctl(fc)) {
|
|
/* ignore cfend and cfendack frames as we never send those */
|
|
return 3;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
|
|
{
|
|
iwl_mvm_bt_coex_notif_handle(mvm);
|
|
}
|
|
|
|
void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
u32 ant_isolation = le32_to_cpup((void *)pkt->data);
|
|
struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
|
|
u8 __maybe_unused lower_bound, upper_bound;
|
|
u8 lut;
|
|
|
|
if (!iwl_mvm_bt_is_plcr_supported(mvm))
|
|
return;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
/* Ignore updates if we are in force mode */
|
|
if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
|
|
return;
|
|
|
|
if (ant_isolation == mvm->last_ant_isol)
|
|
return;
|
|
|
|
for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
|
|
if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
|
|
break;
|
|
|
|
lower_bound = antenna_coupling_ranges[lut].range;
|
|
|
|
if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
|
|
upper_bound = antenna_coupling_ranges[lut + 1].range;
|
|
else
|
|
upper_bound = antenna_coupling_ranges[lut].range;
|
|
|
|
IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
|
|
ant_isolation, lower_bound, upper_bound, lut);
|
|
|
|
mvm->last_ant_isol = ant_isolation;
|
|
|
|
if (mvm->last_corun_lut == lut)
|
|
return;
|
|
|
|
mvm->last_corun_lut = lut;
|
|
|
|
/* For the moment, use the same LUT for 20GHz and 40GHz */
|
|
memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
|
|
sizeof(cmd.corun_lut20));
|
|
|
|
memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
|
|
sizeof(cmd.corun_lut40));
|
|
|
|
if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
|
|
sizeof(cmd), &cmd))
|
|
IWL_ERR(mvm,
|
|
"failed to send BT_COEX_UPDATE_CORUN_LUT command\n");
|
|
}
|