cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/intel/iwlwifi/mvm/coex.c

/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/

#include <linux/ieee80211.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>

#include "fw-api-coex.h"
#include "iwl-modparams.h"
#include "mvm.h"
#include "iwl-debug.h"

/* 20MHz / 40MHz below / 40Mhz above*/

static const __le64 iwl_ci_mask[][3] = {
	/* dummy entry for channel 0 */
	{cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
	{
		cpu_to_le64(0x0000001FFFULL),
		cpu_to_le64(0x0ULL),
		cpu_to_le64(0x00007FFFFFULL),
        },
	{
		cpu_to_le64(0x000000FFFFULL),
		cpu_to_le64(0x0ULL),
		cpu_to_le64(0x0003FFFFFFULL),
        },
	{
		cpu_to_le64(0x000003FFFCULL),
		cpu_to_le64(0x0ULL),
		cpu_to_le64(0x000FFFFFFCULL),
        },
	{
		cpu_to_le64(0x00001FFFE0ULL),
		cpu_to_le64(0x0ULL),
		cpu_to_le64(0x007FFFFFE0ULL),
        },
	{
		cpu_to_le64(0x00007FFF80ULL),
		cpu_to_le64(0x00007FFFFFULL),
		cpu_to_le64(0x01FFFFFF80ULL),
        },
	{
		cpu_to_le64(0x0003FFFC00ULL),
		cpu_to_le64(0x0003FFFFFFULL),
		cpu_to_le64(0x0FFFFFFC00ULL),
        },
	{
		cpu_to_le64(0x000FFFF000ULL),
		cpu_to_le64(0x000FFFFFFCULL),
		cpu_to_le64(0x3FFFFFF000ULL),
        },
	{
		cpu_to_le64(0x007FFF8000ULL),
		cpu_to_le64(0x007FFFFFE0ULL),
		cpu_to_le64(0xFFFFFF8000ULL),
        },
	{
		cpu_to_le64(0x01FFFE0000ULL),
		cpu_to_le64(0x01FFFFFF80ULL),
		cpu_to_le64(0xFFFFFE0000ULL),
        },
	{
		cpu_to_le64(0x0FFFF00000ULL),
		cpu_to_le64(0x0FFFFFFC00ULL),
		cpu_to_le64(0x0ULL),
        },
	{
		cpu_to_le64(0x3FFFC00000ULL),
		cpu_to_le64(0x3FFFFFF000ULL),
		cpu_to_le64(0x0)
	},
	{
		cpu_to_le64(0xFFFE000000ULL),
		cpu_to_le64(0xFFFFFF8000ULL),
		cpu_to_le64(0x0)
	},
	{
		cpu_to_le64(0xFFF8000000ULL),
		cpu_to_le64(0xFFFFFE0000ULL),
		cpu_to_le64(0x0)
	},
	{
		cpu_to_le64(0xFE00000000ULL),
		cpu_to_le64(0x0ULL),
		cpu_to_le64(0x0ULL)
	},
};


struct corunning_block_luts {
	
u8 range;
	
__le32 lut20[BT_COEX_CORUN_LUT_SIZE];
};

/*
 * Ranges for the antenna coupling calibration / co-running block LUT:
 *              LUT0: [ 0, 12[
 *              LUT1: [12, 20[
 *              LUT2: [20, 21[
 *              LUT3: [21, 23[
 *              LUT4: [23, 27[
 *              LUT5: [27, 30[
 *              LUT6: [30, 32[
 *              LUT7: [32, 33[
 *              LUT8: [33, - [
 */

static const struct corunning_block_luts antenna_coupling_ranges[] = {
	{
		.range = 0,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 12,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 20,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 21,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 23,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 27,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 30,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 32,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
	{
		.range = 33,
		.lut20 = {
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
                },
        },
};


static enum iwl_bt_coex_lut_type iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) { struct ieee80211_chanctx_conf *chanctx_conf; enum iwl_bt_coex_lut_type ret; u16 phy_ctx_id; u32 primary_ch_phy_id, secondary_ch_phy_id; /* * Checking that we hold mvm->mutex is a good idea, but the rate * control can't acquire the mutex since it runs in Tx path. * So this is racy in that case, but in the worst case, the AMPDU * size limit will be wrong for a short time which is not a big * issue. */ rcu_read_lock(); chanctx_conf = rcu_dereference(vif->chanctx_conf); if (!chanctx_conf || chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) { rcu_read_unlock(); return BT_COEX_INVALID_LUT; } ret = BT_COEX_TX_DIS_LUT; if (mvm->cfg->bt_shared_single_ant) { 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; }

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Emmanuel Grumbach16799.40%888.89%
Johannes Berg10.60%111.11%
Total168100.00%9100.00%


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); }

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Avri Altman41.88%116.67%
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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; }

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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; }

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Emmanuel Grumbach67100.00%4100.00%
Total67100.00%4100.00%

/* 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); }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach55299.10%1990.48%
Johannes Berg50.90%29.52%
Total557100.00%21100.00%


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)); } }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach37099.73%1292.31%
Johannes Berg10.27%17.69%
Total371100.00%13100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach12099.17%583.33%
Johannes Berg10.83%116.67%
Total121100.00%6100.00%


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"); }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach15597.48%880.00%
Johannes Berg31.89%110.00%
John W. Linville10.63%110.00%
Total159100.00%10100.00%

#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; }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach112100.00%8100.00%
Total112100.00%8100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach101100.00%7100.00%
Total101100.00%7100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach50100.00%1100.00%
Total50100.00%1100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach34100.00%3100.00%
Total34100.00%3100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Eliad Peller3895.00%150.00%
Johannes Berg25.00%150.00%
Total40100.00%2100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach9351.38%571.43%
Avri Altman8748.07%114.29%
Johannes Berg10.55%114.29%
Total181100.00%7100.00%


void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) { iwl_mvm_bt_coex_notif_handle(mvm); }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach1386.67%266.67%
Johannes Berg213.33%133.33%
Total15100.00%3100.00%


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"); }

Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach25894.51%1392.86%
Johannes Berg155.49%17.14%
Total273100.00%14100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Emmanuel Grumbach432996.41%6185.92%
Avri Altman912.03%22.82%
Eliad Peller380.85%11.41%
Johannes Berg310.69%68.45%
John W. Linville10.02%11.41%
Total4490100.00%71100.00%
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