| /****************************************************************************** |
| * |
| * 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 Intel Corporation. All rights reserved. |
| * |
| * 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 <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2013 Intel Corporation. All rights reserved. |
| * 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 "fw-api-bt-coex.h" |
| #include "iwl-modparams.h" |
| #include "mvm.h" |
| #include "iwl-debug.h" |
| |
| #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ |
| [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ |
| ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) |
| |
| static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, |
| BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, |
| BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, |
| BT_COEX_PRIO_TBL_PRIO_LOW, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, |
| BT_COEX_PRIO_TBL_PRIO_LOW, 1), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, |
| BT_COEX_PRIO_TBL_PRIO_HIGH, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, |
| BT_COEX_PRIO_TBL_PRIO_HIGH, 1), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, |
| BT_COEX_PRIO_TBL_DISABLED, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, |
| BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, |
| BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), |
| EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, |
| BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), |
| 0, 0, 0, 0, 0, 0, |
| }; |
| |
| #undef EVENT_PRIO_ANT |
| |
| int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) |
| { |
| return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, |
| sizeof(struct iwl_bt_coex_prio_tbl_cmd), |
| &iwl_bt_prio_tbl); |
| } |
| |
| static int iwl_send_bt_env(struct iwl_mvm *mvm, u8 action, u8 type) |
| { |
| struct iwl_bt_coex_prot_env_cmd env_cmd; |
| int ret; |
| |
| env_cmd.action = action; |
| env_cmd.type = type; |
| ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PROT_ENV, CMD_SYNC, |
| sizeof(env_cmd), &env_cmd); |
| if (ret) |
| IWL_ERR(mvm, "failed to send BT env command\n"); |
| return ret; |
| } |
| |
| enum iwl_bt_kill_msk { |
| BT_KILL_MSK_DEFAULT, |
| BT_KILL_MSK_SCO_HID_A2DP, |
| BT_KILL_MSK_REDUCED_TXPOW, |
| BT_KILL_MSK_MAX, |
| }; |
| |
| static const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { |
| 0xffffffff, |
| 0xfffffc00, |
| 0, |
| }; |
| |
| static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { |
| 0xffffffff, |
| 0xfffffc00, |
| 0, |
| }; |
| |
| #define IWL_BT_DEFAULT_BOOST (0xf0f0f0f0) |
| |
| /* Tight Coex */ |
| static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = { |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaeaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xcc00ff28), |
| cpu_to_le32(0x0000aaaa), |
| cpu_to_le32(0xcc00aaaa), |
| cpu_to_le32(0x0000aaaa), |
| cpu_to_le32(0xc0004000), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0xf0005000), |
| cpu_to_le32(0xf0005000), |
| }; |
| |
| /* Loose Coex */ |
| static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = { |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaeaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xcc00ff28), |
| cpu_to_le32(0x0000aaaa), |
| cpu_to_le32(0xcc00aaaa), |
| cpu_to_le32(0x0000aaaa), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0xf0005000), |
| cpu_to_le32(0xf0005000), |
| }; |
| |
| /* Full concurrency */ |
| static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = { |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0xaaaaaaaa), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0x00000000), |
| cpu_to_le32(0x00000000), |
| }; |
| |
| /* BT Antenna Coupling Threshold (dB) */ |
| #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35) |
| |
| int iwl_send_bt_init_conf(struct iwl_mvm *mvm) |
| { |
| struct iwl_bt_coex_cmd cmd = { |
| .max_kill = 5, |
| .bt3_time_t7_value = 1, |
| .bt3_prio_sample_time = 2, |
| .bt3_timer_t2_value = 0xc, |
| }; |
| int ret; |
| |
| cmd.flags = iwlwifi_mod_params.bt_coex_active ? |
| BT_COEX_NW : BT_COEX_DISABLE; |
| cmd.flags |= iwlwifi_mod_params.bt_ch_announce ? |
| BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN : 0; |
| cmd.flags |= BT_SYNC_2_BT_DISABLE; |
| |
| cmd.valid_bit_msk = cpu_to_le16(BT_VALID_ENABLE | |
| BT_VALID_BT_PRIO_BOOST | |
| BT_VALID_MAX_KILL | |
| BT_VALID_3W_TMRS | |
| BT_VALID_KILL_ACK | |
| BT_VALID_KILL_CTS | |
| BT_VALID_REDUCED_TX_POWER | |
| BT_VALID_LUT); |
| |
| if (iwlwifi_mod_params.ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) |
| memcpy(&cmd.decision_lut, iwl_loose_lookup, |
| sizeof(iwl_tight_lookup)); |
| else |
| memcpy(&cmd.decision_lut, iwl_tight_lookup, |
| sizeof(iwl_tight_lookup)); |
| |
| cmd.bt_prio_boost = cpu_to_le32(IWL_BT_DEFAULT_BOOST); |
| cmd.kill_ack_msk = |
| cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); |
| cmd.kill_cts_msk = |
| cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); |
| |
| /* go to CALIB state in internal BT-Coex state machine */ |
| ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN, |
| BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| if (ret) |
| return ret; |
| |
| ret = iwl_send_bt_env(mvm, BT_COEX_ENV_CLOSE, |
| BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| if (ret) |
| return ret; |
| |
| return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC, |
| sizeof(cmd), &cmd); |
| } |
| |
| struct iwl_bt_notif_iterator_data { |
| struct iwl_mvm *mvm; |
| struct iwl_bt_coex_profile_notif *notif; |
| }; |
| |
| 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_notif_iterator_data *data = _data; |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| enum ieee80211_smps_mode smps_mode; |
| enum ieee80211_band band; |
| |
| if (vif->type != NL80211_IFTYPE_STATION) |
| return; |
| |
| rcu_read_lock(); |
| chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| if (chanctx_conf && chanctx_conf->def.chan) |
| band = chanctx_conf->def.chan->band; |
| else |
| band = -1; |
| rcu_read_unlock(); |
| |
| if (band != IEEE80211_BAND_2GHZ) |
| return; |
| |
| smps_mode = IEEE80211_SMPS_AUTOMATIC; |
| |
| if (data->notif->bt_status) |
| smps_mode = IEEE80211_SMPS_DYNAMIC; |
| |
| if (data->notif->bt_traffic_load) |
| smps_mode = IEEE80211_SMPS_STATIC; |
| |
| IWL_DEBUG_COEX(data->mvm, |
| "mac %d: bt_status %d traffic_load %d smps_req %d\n", |
| mvmvif->id, data->notif->bt_status, |
| data->notif->bt_traffic_load, smps_mode); |
| |
| ieee80211_request_smps(vif, smps_mode); |
| } |
| |
| int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, |
| struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *dev_cmd) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; |
| struct iwl_bt_notif_iterator_data data = { |
| .mvm = mvm, |
| .notif = notif, |
| }; |
| struct iwl_bt_coex_cmd cmd = {}; |
| enum iwl_bt_kill_msk bt_kill_msk; |
| |
| IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); |
| IWL_DEBUG_COEX(mvm, "\tBT %salive\n", notif->bt_status ? "" : "not "); |
| IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); |
| IWL_DEBUG_COEX(mvm, "\tBT traffic load %d\n", notif->bt_traffic_load); |
| IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", |
| notif->bt_agg_traffic_load); |
| IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); |
| |
| /* remember this notification for future use: rssi fluctuations */ |
| memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); |
| |
| ieee80211_iterate_active_interfaces_atomic( |
| mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_bt_notif_iterator, &data); |
| |
| /* Low latency BT profile is active: give higher prio to BT */ |
| if (BT_MBOX_MSG(notif, 3, SCO_STATE) || |
| BT_MBOX_MSG(notif, 3, A2DP_STATE) || |
| BT_MBOX_MSG(notif, 3, SNIFF_STATE)) |
| bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; |
| else |
| bt_kill_msk = BT_KILL_MSK_DEFAULT; |
| |
| /* Don't send HCMD if there is no update */ |
| if (bt_kill_msk == mvm->bt_kill_msk) |
| return 0; |
| |
| IWL_DEBUG_COEX(mvm, |
| "Udpate kill_msk: %d\n\t SCO %sactive A2DP %sactive SNIFF %sactive\n", |
| bt_kill_msk, |
| BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", |
| BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", |
| BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); |
| |
| mvm->bt_kill_msk = bt_kill_msk; |
| cmd.kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); |
| cmd.kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); |
| |
| cmd.valid_bit_msk = cpu_to_le16(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS); |
| |
| if (iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC, sizeof(cmd), &cmd)) |
| IWL_ERR(mvm, "Failed to sent BT Coex CMD\n"); |
| |
| /* This handler is ASYNC */ |
| return 0; |
| } |