| /****************************************************************************** |
| * |
| * 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; |
| } |
| |
| 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"); |
| } |
