Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | * redistributing this file, you may do so under either license. |
| 5 | * |
| 6 | * GPL LICENSE SUMMARY |
| 7 | * |
| 8 | * Copyright(c) 2013 Intel Corporation. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of version 2 of the GNU General Public License as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 22 | * USA |
| 23 | * |
| 24 | * The full GNU General Public License is included in this distribution |
| 25 | * in the file called COPYING. |
| 26 | * |
| 27 | * Contact Information: |
| 28 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | * |
| 31 | * BSD LICENSE |
| 32 | * |
| 33 | * Copyright(c) 2013 Intel Corporation. All rights reserved. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * |
| 40 | * * Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * * Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in |
| 44 | * the documentation and/or other materials provided with the |
| 45 | * distribution. |
| 46 | * * Neither the name Intel Corporation nor the names of its |
| 47 | * contributors may be used to endorse or promote products derived |
| 48 | * from this software without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 61 | * |
| 62 | *****************************************************************************/ |
| 63 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 64 | #include <net/mac80211.h> |
| 65 | |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 66 | #include "fw-api-bt-coex.h" |
| 67 | #include "iwl-modparams.h" |
| 68 | #include "mvm.h" |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 69 | #include "iwl-debug.h" |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 70 | |
| 71 | #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ |
| 72 | [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ |
| 73 | ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) |
| 74 | |
| 75 | static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { |
| 76 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, |
| 77 | BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), |
| 78 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, |
| 79 | BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), |
| 80 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, |
| 81 | BT_COEX_PRIO_TBL_PRIO_LOW, 0), |
| 82 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, |
| 83 | BT_COEX_PRIO_TBL_PRIO_LOW, 1), |
| 84 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, |
| 85 | BT_COEX_PRIO_TBL_PRIO_HIGH, 0), |
| 86 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, |
| 87 | BT_COEX_PRIO_TBL_PRIO_HIGH, 1), |
| 88 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, |
| 89 | BT_COEX_PRIO_TBL_DISABLED, 0), |
| 90 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, |
| 91 | BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), |
| 92 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, |
| 93 | BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), |
| 94 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, |
| 95 | BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), |
| 96 | 0, 0, 0, 0, 0, 0, |
| 97 | }; |
| 98 | |
| 99 | #undef EVENT_PRIO_ANT |
| 100 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 101 | #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) |
| 102 | #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 103 | #define BT_ANTENNA_COUPLING_THRESHOLD (30) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 104 | |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 105 | int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) |
| 106 | { |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 107 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
| 108 | return 0; |
| 109 | |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 110 | return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, |
| 111 | sizeof(struct iwl_bt_coex_prio_tbl_cmd), |
| 112 | &iwl_bt_prio_tbl); |
| 113 | } |
| 114 | |
Emmanuel Grumbach | 2de13ca | 2013-06-30 07:43:28 +0300 | [diff] [blame] | 115 | const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { |
Emmanuel Grumbach | 5b7e662 | 2013-03-10 20:15:24 +0200 | [diff] [blame] | 116 | [BT_KILL_MSK_DEFAULT] = 0xffff0000, |
| 117 | [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, |
| 118 | [BT_KILL_MSK_REDUCED_TXPOW] = 0, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 119 | }; |
| 120 | |
Emmanuel Grumbach | 2de13ca | 2013-06-30 07:43:28 +0300 | [diff] [blame] | 121 | const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { |
Emmanuel Grumbach | 5b7e662 | 2013-03-10 20:15:24 +0200 | [diff] [blame] | 122 | [BT_KILL_MSK_DEFAULT] = 0xffff0000, |
| 123 | [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, |
| 124 | [BT_KILL_MSK_REDUCED_TXPOW] = 0, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 125 | }; |
| 126 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 127 | static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { |
| 128 | cpu_to_le32(0xf0f0f0f0), |
| 129 | cpu_to_le32(0xc0c0c0c0), |
| 130 | cpu_to_le32(0xfcfcfcfc), |
| 131 | cpu_to_le32(0xff00ff00), |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 132 | }; |
| 133 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 134 | static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { |
| 135 | { |
| 136 | /* Tight */ |
| 137 | cpu_to_le32(0xaaaaaaaa), |
| 138 | cpu_to_le32(0xaaaaaaaa), |
| 139 | cpu_to_le32(0xaeaaaaaa), |
| 140 | cpu_to_le32(0xaaaaaaaa), |
| 141 | cpu_to_le32(0xcc00ff28), |
| 142 | cpu_to_le32(0x0000aaaa), |
| 143 | cpu_to_le32(0xcc00aaaa), |
| 144 | cpu_to_le32(0x0000aaaa), |
| 145 | cpu_to_le32(0xc0004000), |
| 146 | cpu_to_le32(0x00000000), |
| 147 | cpu_to_le32(0xf0005000), |
| 148 | cpu_to_le32(0xf0005000), |
| 149 | }, |
| 150 | { |
| 151 | /* Loose */ |
| 152 | cpu_to_le32(0xaaaaaaaa), |
| 153 | cpu_to_le32(0xaaaaaaaa), |
| 154 | cpu_to_le32(0xaaaaaaaa), |
| 155 | cpu_to_le32(0xaaaaaaaa), |
| 156 | cpu_to_le32(0xcc00ff28), |
| 157 | cpu_to_le32(0x0000aaaa), |
| 158 | cpu_to_le32(0xcc00aaaa), |
| 159 | cpu_to_le32(0x0000aaaa), |
| 160 | cpu_to_le32(0x00000000), |
| 161 | cpu_to_le32(0x00000000), |
| 162 | cpu_to_le32(0xf0005000), |
| 163 | cpu_to_le32(0xf0005000), |
| 164 | }, |
| 165 | { |
| 166 | /* Tx Tx disabled */ |
| 167 | cpu_to_le32(0xaaaaaaaa), |
| 168 | cpu_to_le32(0xaaaaaaaa), |
| 169 | cpu_to_le32(0xaaaaaaaa), |
| 170 | cpu_to_le32(0xaaaaaaaa), |
| 171 | cpu_to_le32(0xcc00ff28), |
| 172 | cpu_to_le32(0x0000aaaa), |
| 173 | cpu_to_le32(0xcc00aaaa), |
| 174 | cpu_to_le32(0x0000aaaa), |
| 175 | cpu_to_le32(0xC0004000), |
| 176 | cpu_to_le32(0xC0004000), |
| 177 | cpu_to_le32(0xF0005000), |
| 178 | cpu_to_le32(0xF0005000), |
| 179 | }, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 180 | }; |
| 181 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 182 | /* 20MHz / 40MHz below / 40Mhz above*/ |
| 183 | static const __le64 iwl_ci_mask[][3] = { |
| 184 | /* dummy entry for channel 0 */ |
| 185 | {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, |
| 186 | { |
| 187 | cpu_to_le64(0x0000001FFFULL), |
| 188 | cpu_to_le64(0x0ULL), |
| 189 | cpu_to_le64(0x00007FFFFFULL), |
| 190 | }, |
| 191 | { |
| 192 | cpu_to_le64(0x000000FFFFULL), |
| 193 | cpu_to_le64(0x0ULL), |
| 194 | cpu_to_le64(0x0003FFFFFFULL), |
| 195 | }, |
| 196 | { |
| 197 | cpu_to_le64(0x000003FFFCULL), |
| 198 | cpu_to_le64(0x0ULL), |
| 199 | cpu_to_le64(0x000FFFFFFCULL), |
| 200 | }, |
| 201 | { |
| 202 | cpu_to_le64(0x00001FFFE0ULL), |
| 203 | cpu_to_le64(0x0ULL), |
| 204 | cpu_to_le64(0x007FFFFFE0ULL), |
| 205 | }, |
| 206 | { |
| 207 | cpu_to_le64(0x00007FFF80ULL), |
| 208 | cpu_to_le64(0x00007FFFFFULL), |
| 209 | cpu_to_le64(0x01FFFFFF80ULL), |
| 210 | }, |
| 211 | { |
| 212 | cpu_to_le64(0x0003FFFC00ULL), |
| 213 | cpu_to_le64(0x0003FFFFFFULL), |
| 214 | cpu_to_le64(0x0FFFFFFC00ULL), |
| 215 | }, |
| 216 | { |
| 217 | cpu_to_le64(0x000FFFF000ULL), |
| 218 | cpu_to_le64(0x000FFFFFFCULL), |
| 219 | cpu_to_le64(0x3FFFFFF000ULL), |
| 220 | }, |
| 221 | { |
| 222 | cpu_to_le64(0x007FFF8000ULL), |
| 223 | cpu_to_le64(0x007FFFFFE0ULL), |
| 224 | cpu_to_le64(0xFFFFFF8000ULL), |
| 225 | }, |
| 226 | { |
| 227 | cpu_to_le64(0x01FFFE0000ULL), |
| 228 | cpu_to_le64(0x01FFFFFF80ULL), |
| 229 | cpu_to_le64(0xFFFFFE0000ULL), |
| 230 | }, |
| 231 | { |
| 232 | cpu_to_le64(0x0FFFF00000ULL), |
| 233 | cpu_to_le64(0x0FFFFFFC00ULL), |
| 234 | cpu_to_le64(0x0ULL), |
| 235 | }, |
| 236 | { |
| 237 | cpu_to_le64(0x3FFFC00000ULL), |
| 238 | cpu_to_le64(0x3FFFFFF000ULL), |
| 239 | cpu_to_le64(0x0) |
| 240 | }, |
| 241 | { |
| 242 | cpu_to_le64(0xFFFE000000ULL), |
| 243 | cpu_to_le64(0xFFFFFF8000ULL), |
| 244 | cpu_to_le64(0x0) |
| 245 | }, |
| 246 | { |
| 247 | cpu_to_le64(0xFFF8000000ULL), |
| 248 | cpu_to_le64(0xFFFFFE0000ULL), |
| 249 | cpu_to_le64(0x0) |
| 250 | }, |
| 251 | { |
| 252 | cpu_to_le64(0xFE00000000ULL), |
| 253 | cpu_to_le64(0x0ULL), |
| 254 | cpu_to_le64(0x0) |
| 255 | }, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 256 | }; |
| 257 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 258 | static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { |
| 259 | cpu_to_le32(0x22002200), |
| 260 | cpu_to_le32(0x33113311), |
Emmanuel Grumbach | e715c3a | 2013-06-18 05:34:58 +0300 | [diff] [blame] | 261 | }; |
| 262 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 263 | static enum iwl_bt_coex_lut_type |
| 264 | iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) |
| 265 | { |
| 266 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 267 | enum iwl_bt_coex_lut_type ret; |
| 268 | u16 phy_ctx_id; |
| 269 | |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame^] | 270 | /* |
| 271 | * Checking that we hold mvm->mutex is a good idea, but the rate |
| 272 | * control can't acquire the mutex since it runs in Tx path. |
| 273 | * So this is racy in that case, but in the worst case, the AMPDU |
| 274 | * size limit will be wrong for a short time which is not a big |
| 275 | * issue. |
| 276 | */ |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 277 | |
| 278 | rcu_read_lock(); |
| 279 | |
| 280 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 281 | |
| 282 | if (!chanctx_conf || |
| 283 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { |
| 284 | rcu_read_unlock(); |
| 285 | return BT_COEX_LOOSE_LUT; |
| 286 | } |
| 287 | |
| 288 | ret = BT_COEX_TX_DIS_LUT; |
| 289 | |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 290 | if (mvm->cfg->bt_shared_single_ant) { |
| 291 | rcu_read_unlock(); |
| 292 | return ret; |
| 293 | } |
| 294 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 295 | phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); |
| 296 | |
| 297 | if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) |
| 298 | ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); |
| 299 | else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) |
| 300 | ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); |
| 301 | /* else - default = TX TX disallowed */ |
| 302 | |
| 303 | rcu_read_unlock(); |
| 304 | |
| 305 | return ret; |
| 306 | } |
| 307 | |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 308 | int iwl_send_bt_init_conf(struct iwl_mvm *mvm) |
| 309 | { |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 310 | struct iwl_bt_coex_cmd *bt_cmd; |
| 311 | struct iwl_host_cmd cmd = { |
| 312 | .id = BT_CONFIG, |
| 313 | .len = { sizeof(*bt_cmd), }, |
| 314 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, |
| 315 | .flags = CMD_SYNC, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 316 | }; |
| 317 | int ret; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 318 | u32 flags; |
| 319 | |
| 320 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
| 321 | return 0; |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 322 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 323 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); |
| 324 | if (!bt_cmd) |
| 325 | return -ENOMEM; |
| 326 | cmd.data[0] = bt_cmd; |
| 327 | |
| 328 | bt_cmd->max_kill = 5; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 329 | bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD, |
| 330 | bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling, |
| 331 | bt_cmd->bt4_tx_tx_delta_freq_thr = 15, |
| 332 | bt_cmd->bt4_tx_rx_max_freq0 = 15, |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 333 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 334 | flags = iwlwifi_mod_params.bt_coex_active ? |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 335 | BT_COEX_NW : BT_COEX_DISABLE; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 336 | flags |= BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN | BT_SYNC_2_BT_DISABLE; |
| 337 | bt_cmd->flags = cpu_to_le32(flags); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 338 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 339 | bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 340 | BT_VALID_BT_PRIO_BOOST | |
| 341 | BT_VALID_MAX_KILL | |
| 342 | BT_VALID_3W_TMRS | |
| 343 | BT_VALID_KILL_ACK | |
| 344 | BT_VALID_KILL_CTS | |
| 345 | BT_VALID_REDUCED_TX_POWER | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 346 | BT_VALID_LUT | |
| 347 | BT_VALID_WIFI_RX_SW_PRIO_BOOST | |
| 348 | BT_VALID_WIFI_TX_SW_PRIO_BOOST | |
| 349 | BT_VALID_MULTI_PRIO_LUT | |
| 350 | BT_VALID_CORUN_LUT_20 | |
| 351 | BT_VALID_CORUN_LUT_40 | |
| 352 | BT_VALID_ANT_ISOLATION | |
| 353 | BT_VALID_ANT_ISOLATION_THRS | |
| 354 | BT_VALID_TXTX_DELTA_FREQ_THRS | |
| 355 | BT_VALID_TXRX_MAX_FREQ_0); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 356 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 357 | memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, |
| 358 | sizeof(iwl_combined_lookup)); |
| 359 | memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, |
| 360 | sizeof(iwl_bt_prio_boost)); |
| 361 | memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, |
| 362 | sizeof(iwl_bt_mprio_lut)); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 363 | bt_cmd->kill_ack_msk = |
| 364 | cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 365 | bt_cmd->kill_cts_msk = |
| 366 | cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 367 | |
| 368 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 369 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 370 | |
| 371 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 372 | |
| 373 | kfree(bt_cmd); |
| 374 | return ret; |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 375 | } |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 376 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 377 | static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, |
| 378 | bool reduced_tx_power) |
| 379 | { |
| 380 | enum iwl_bt_kill_msk bt_kill_msk; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 381 | struct iwl_bt_coex_cmd *bt_cmd; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 382 | struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 383 | struct iwl_host_cmd cmd = { |
| 384 | .id = BT_CONFIG, |
| 385 | .data[0] = &bt_cmd, |
| 386 | .len = { sizeof(*bt_cmd), }, |
| 387 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, |
| 388 | .flags = CMD_SYNC, |
| 389 | }; |
| 390 | int ret = 0; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 391 | |
| 392 | lockdep_assert_held(&mvm->mutex); |
| 393 | |
| 394 | if (reduced_tx_power) { |
| 395 | /* Reduced Tx power has precedence on the type of the profile */ |
| 396 | bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; |
| 397 | } else { |
| 398 | /* Low latency BT profile is active: give higher prio to BT */ |
| 399 | if (BT_MBOX_MSG(notif, 3, SCO_STATE) || |
| 400 | BT_MBOX_MSG(notif, 3, A2DP_STATE) || |
| 401 | BT_MBOX_MSG(notif, 3, SNIFF_STATE)) |
| 402 | bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; |
| 403 | else |
| 404 | bt_kill_msk = BT_KILL_MSK_DEFAULT; |
| 405 | } |
| 406 | |
| 407 | IWL_DEBUG_COEX(mvm, |
| 408 | "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", |
| 409 | bt_kill_msk, |
| 410 | BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", |
| 411 | BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", |
| 412 | BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); |
| 413 | |
| 414 | /* Don't send HCMD if there is no update */ |
| 415 | if (bt_kill_msk == mvm->bt_kill_msk) |
| 416 | return 0; |
| 417 | |
| 418 | mvm->bt_kill_msk = bt_kill_msk; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 419 | |
| 420 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); |
| 421 | if (!bt_cmd) |
| 422 | return -ENOMEM; |
| 423 | cmd.data[0] = bt_cmd; |
| 424 | |
| 425 | bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); |
| 426 | bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); |
| 427 | bt_cmd->valid_bit_msk = |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 428 | cpu_to_le32(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 429 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 430 | IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", |
| 431 | iwl_bt_ack_kill_msk[bt_kill_msk], |
| 432 | iwl_bt_cts_kill_msk[bt_kill_msk]); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 433 | |
| 434 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 435 | |
| 436 | kfree(bt_cmd); |
| 437 | return ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 438 | } |
| 439 | |
| 440 | static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, |
| 441 | bool enable) |
| 442 | { |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 443 | struct iwl_bt_coex_cmd *bt_cmd; |
| 444 | /* Send ASYNC since this can be sent from an atomic context */ |
| 445 | struct iwl_host_cmd cmd = { |
| 446 | .id = BT_CONFIG, |
| 447 | .len = { sizeof(*bt_cmd), }, |
| 448 | .dataflags = { IWL_HCMD_DFL_DUP, }, |
| 449 | .flags = CMD_ASYNC, |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 450 | }; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 451 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 452 | struct ieee80211_sta *sta; |
| 453 | struct iwl_mvm_sta *mvmsta; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 454 | int ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 455 | |
| 456 | /* This can happen if the station has been removed right now */ |
| 457 | if (sta_id == IWL_MVM_STATION_COUNT) |
| 458 | return 0; |
| 459 | |
| 460 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], |
| 461 | lockdep_is_held(&mvm->mutex)); |
| 462 | mvmsta = (void *)sta->drv_priv; |
| 463 | |
| 464 | /* nothing to do */ |
| 465 | if (mvmsta->bt_reduced_txpower == enable) |
| 466 | return 0; |
| 467 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 468 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); |
| 469 | if (!bt_cmd) |
| 470 | return -ENOMEM; |
| 471 | cmd.data[0] = bt_cmd; |
| 472 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 473 | bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_REDUCED_TX_POWER), |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 474 | bt_cmd->bt_reduced_tx_power = sta_id; |
| 475 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 476 | if (enable) |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 477 | bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 478 | |
| 479 | IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", |
| 480 | enable ? "en" : "dis", sta_id); |
| 481 | |
| 482 | mvmsta->bt_reduced_txpower = enable; |
| 483 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 484 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 485 | |
| 486 | kfree(bt_cmd); |
| 487 | return ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 488 | } |
| 489 | |
| 490 | struct iwl_bt_iterator_data { |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 491 | struct iwl_bt_coex_profile_notif *notif; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 492 | struct iwl_mvm *mvm; |
| 493 | u32 num_bss_ifaces; |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 494 | bool reduced_tx_power; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 495 | struct ieee80211_chanctx_conf *primary; |
| 496 | struct ieee80211_chanctx_conf *secondary; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 497 | }; |
| 498 | |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 499 | static inline |
| 500 | void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, |
| 501 | struct ieee80211_vif *vif, |
| 502 | bool enable, int rssi) |
| 503 | { |
| 504 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 505 | |
| 506 | mvmvif->bf_data.last_bt_coex_event = rssi; |
| 507 | mvmvif->bf_data.bt_coex_max_thold = |
| 508 | enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; |
| 509 | mvmvif->bf_data.bt_coex_min_thold = |
| 510 | enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; |
| 511 | } |
| 512 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 513 | /* must be called under rcu_read_lock */ |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 514 | static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, |
| 515 | struct ieee80211_vif *vif) |
| 516 | { |
| 517 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 518 | struct iwl_bt_iterator_data *data = _data; |
| 519 | struct iwl_mvm *mvm = data->mvm; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 520 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 521 | enum ieee80211_smps_mode smps_mode; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 522 | int ave_rssi; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 523 | |
Eytan Lifshitz | 9ee718a | 2013-05-19 19:14:41 +0300 | [diff] [blame] | 524 | lockdep_assert_held(&mvm->mutex); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 525 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 526 | if (vif->type != NL80211_IFTYPE_STATION && |
| 527 | vif->type != NL80211_IFTYPE_AP) |
| 528 | return; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 529 | |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 530 | smps_mode = IEEE80211_SMPS_AUTOMATIC; |
| 531 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 532 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 533 | |
| 534 | /* If channel context is invalid or not on 2.4GHz .. */ |
| 535 | if ((!chanctx_conf || |
| 536 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { |
| 537 | /* ... and it is an associated STATION, relax constraints */ |
| 538 | if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc) |
| 539 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, |
| 540 | smps_mode); |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 541 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 542 | return; |
| 543 | } |
| 544 | |
| 545 | /* SoftAP / GO will always be primary */ |
| 546 | if (vif->type == NL80211_IFTYPE_AP) { |
| 547 | if (!mvmvif->ap_active) |
| 548 | return; |
| 549 | |
| 550 | /* the Ack / Cts kill mask must be default if AP / GO */ |
| 551 | data->reduced_tx_power = false; |
| 552 | |
| 553 | if (chanctx_conf == data->primary) |
| 554 | return; |
| 555 | |
| 556 | /* downgrade the current primary no matter what its type is */ |
| 557 | data->secondary = data->primary; |
| 558 | data->primary = chanctx_conf; |
| 559 | return; |
| 560 | } |
| 561 | |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 562 | data->num_bss_ifaces++; |
| 563 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 564 | /* we are now a STA / P2P Client, and take associated ones only */ |
Emmanuel Grumbach | 41069b4 | 2013-06-25 21:49:19 +0300 | [diff] [blame] | 565 | if (!vif->bss_conf.assoc) |
| 566 | return; |
| 567 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 568 | /* STA / P2P Client, try to be primary if first vif */ |
| 569 | if (!data->primary || data->primary == chanctx_conf) |
| 570 | data->primary = chanctx_conf; |
| 571 | else if (!data->secondary) |
| 572 | /* if secondary is not NULL, it might be a GO */ |
| 573 | data->secondary = chanctx_conf; |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 574 | |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 575 | if (data->notif->bt_status) |
| 576 | smps_mode = IEEE80211_SMPS_DYNAMIC; |
| 577 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 578 | if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_LOW_TRAFFIC) |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 579 | smps_mode = IEEE80211_SMPS_STATIC; |
| 580 | |
| 581 | IWL_DEBUG_COEX(data->mvm, |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 582 | "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 583 | mvmvif->id, data->notif->bt_status, |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 584 | data->notif->bt_activity_grading, smps_mode); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 585 | |
Eytan Lifshitz | 9ee718a | 2013-05-19 19:14:41 +0300 | [diff] [blame] | 586 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 587 | |
| 588 | /* don't reduce the Tx power if in loose scheme */ |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 589 | if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || |
| 590 | mvm->cfg->bt_shared_single_ant) { |
| 591 | data->reduced_tx_power = false; |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 592 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 593 | return; |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 594 | } |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 595 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 596 | /* reduced Txpower only if BT is on, so ...*/ |
| 597 | if (le32_to_cpu(data->notif->bt_activity_grading) == BT_OFF) { |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 598 | /* ... cancel reduced Tx power ... */ |
| 599 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) |
| 600 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 601 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 602 | |
| 603 | /* ... and there is no need to get reports on RSSI any more. */ |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 604 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 605 | return; |
| 606 | } |
| 607 | |
Andrei Otcheretianski | 911222b | 2013-07-21 17:37:19 +0300 | [diff] [blame] | 608 | /* try to get the avg rssi from fw */ |
| 609 | ave_rssi = mvmvif->bf_data.ave_beacon_signal; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 610 | |
| 611 | /* if the RSSI isn't valid, fake it is very low */ |
| 612 | if (!ave_rssi) |
| 613 | ave_rssi = -100; |
| 614 | if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { |
| 615 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) |
| 616 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
| 617 | |
| 618 | /* |
| 619 | * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the |
| 620 | * BSS / P2P clients have rssi above threshold. |
| 621 | * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before |
| 622 | * the iteration, if one interface's rssi isn't good enough, |
| 623 | * bt_kill_msk will be set to default values. |
| 624 | */ |
| 625 | } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { |
| 626 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) |
| 627 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
| 628 | |
| 629 | /* |
| 630 | * One interface hasn't rssi above threshold, bt_kill_msk must |
| 631 | * be set to default values. |
| 632 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 633 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | /* Begin to monitor the RSSI: it may influence the reduced Tx power */ |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 637 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 638 | } |
| 639 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 640 | static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 641 | { |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 642 | struct iwl_bt_iterator_data data = { |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 643 | .mvm = mvm, |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 644 | .notif = &mvm->last_bt_notif, |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 645 | .reduced_tx_power = true, |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 646 | }; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 647 | struct iwl_bt_coex_ci_cmd cmd = {}; |
| 648 | u8 ci_bw_idx; |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 649 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 650 | rcu_read_lock(); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 651 | ieee80211_iterate_active_interfaces_atomic( |
| 652 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 653 | iwl_mvm_bt_notif_iterator, &data); |
| 654 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 655 | if (data.primary) { |
| 656 | struct ieee80211_chanctx_conf *chan = data.primary; |
| 657 | if (WARN_ON(!chan->def.chan)) { |
| 658 | rcu_read_unlock(); |
| 659 | return; |
| 660 | } |
| 661 | |
| 662 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { |
| 663 | ci_bw_idx = 0; |
| 664 | cmd.co_run_bw_primary = 0; |
| 665 | } else { |
| 666 | cmd.co_run_bw_primary = 1; |
| 667 | if (chan->def.center_freq1 > |
| 668 | chan->def.chan->center_freq) |
| 669 | ci_bw_idx = 2; |
| 670 | else |
| 671 | ci_bw_idx = 1; |
| 672 | } |
| 673 | |
| 674 | cmd.bt_primary_ci = |
| 675 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; |
| 676 | cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); |
| 677 | } |
| 678 | |
| 679 | if (data.secondary) { |
| 680 | struct ieee80211_chanctx_conf *chan = data.secondary; |
| 681 | if (WARN_ON(!data.secondary->def.chan)) { |
| 682 | rcu_read_unlock(); |
| 683 | return; |
| 684 | } |
| 685 | |
| 686 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { |
| 687 | ci_bw_idx = 0; |
| 688 | cmd.co_run_bw_secondary = 0; |
| 689 | } else { |
| 690 | cmd.co_run_bw_secondary = 1; |
| 691 | if (chan->def.center_freq1 > |
| 692 | chan->def.chan->center_freq) |
| 693 | ci_bw_idx = 2; |
| 694 | else |
| 695 | ci_bw_idx = 1; |
| 696 | } |
| 697 | |
| 698 | cmd.bt_secondary_ci = |
| 699 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; |
| 700 | cmd.secondary_ch_phy_id = *((u16 *)data.primary->drv_priv); |
| 701 | } |
| 702 | |
| 703 | rcu_read_unlock(); |
| 704 | |
| 705 | /* Don't spam the fw with the same command over and over */ |
| 706 | if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { |
| 707 | if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, |
| 708 | sizeof(cmd), &cmd)) |
| 709 | IWL_ERR(mvm, "Failed to send BT_CI cmd"); |
| 710 | memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); |
| 711 | } |
| 712 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 713 | /* |
| 714 | * If there are no BSS / P2P client interfaces, reduced Tx Power is |
| 715 | * irrelevant since it is based on the RSSI coming from the beacon. |
| 716 | * Use BT_KILL_MSK_DEFAULT in that case. |
| 717 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 718 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 719 | |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 720 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 721 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | /* upon association, the fw will send in BT Coex notification */ |
| 725 | int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, |
| 726 | struct iwl_rx_cmd_buffer *rxb, |
| 727 | struct iwl_device_cmd *dev_cmd) |
| 728 | { |
| 729 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| 730 | struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; |
| 731 | |
| 732 | |
| 733 | IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 734 | IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", |
| 735 | notif->bt_status ? "ON" : "OFF"); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 736 | IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 737 | IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); |
| 738 | IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", |
| 739 | le32_to_cpu(notif->primary_ch_lut)); |
| 740 | IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", |
| 741 | le32_to_cpu(notif->secondary_ch_lut)); |
| 742 | IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", |
| 743 | le32_to_cpu(notif->bt_activity_grading)); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 744 | IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", |
| 745 | notif->bt_agg_traffic_load); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 746 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 747 | /* remember this notification for future use: rssi fluctuations */ |
| 748 | memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); |
| 749 | |
| 750 | iwl_mvm_bt_coex_notif_handle(mvm); |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 751 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 752 | /* |
| 753 | * This is an async handler for a notification, returning anything other |
| 754 | * than 0 doesn't make sense even if HCMD failed. |
| 755 | */ |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 756 | return 0; |
| 757 | } |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 758 | |
| 759 | static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, |
| 760 | struct ieee80211_vif *vif) |
| 761 | { |
| 762 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; |
| 763 | struct iwl_bt_iterator_data *data = _data; |
| 764 | struct iwl_mvm *mvm = data->mvm; |
| 765 | |
| 766 | struct ieee80211_sta *sta; |
| 767 | struct iwl_mvm_sta *mvmsta; |
| 768 | |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 769 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 770 | |
| 771 | rcu_read_lock(); |
| 772 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 773 | /* If channel context is invalid or not on 2.4GHz - don't count it */ |
| 774 | if (!chanctx_conf || |
| 775 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { |
| 776 | rcu_read_unlock(); |
| 777 | return; |
| 778 | } |
| 779 | rcu_read_unlock(); |
| 780 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 781 | if (vif->type != NL80211_IFTYPE_STATION || |
| 782 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) |
| 783 | return; |
| 784 | |
| 785 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], |
| 786 | lockdep_is_held(&mvm->mutex)); |
| 787 | mvmsta = (void *)sta->drv_priv; |
| 788 | |
Emmanuel Grumbach | 8e0366f | 2013-06-25 21:57:08 +0300 | [diff] [blame] | 789 | data->num_bss_ifaces++; |
| 790 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 791 | /* |
| 792 | * This interface doesn't support reduced Tx power (because of low |
| 793 | * RSSI probably), then set bt_kill_msk to default values. |
| 794 | */ |
| 795 | if (!mvmsta->bt_reduced_txpower) |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 796 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 797 | /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ |
| 798 | } |
| 799 | |
| 800 | void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| 801 | enum ieee80211_rssi_event rssi_event) |
| 802 | { |
| 803 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 804 | struct iwl_bt_iterator_data data = { |
| 805 | .mvm = mvm, |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 806 | .reduced_tx_power = true, |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 807 | }; |
| 808 | int ret; |
| 809 | |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 810 | lockdep_assert_held(&mvm->mutex); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 811 | |
| 812 | /* Rssi update while not associated ?! */ |
| 813 | if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 814 | return; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 815 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 816 | /* No BT - reports should be disabled */ |
| 817 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 818 | return; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 819 | |
| 820 | IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, |
| 821 | rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); |
| 822 | |
| 823 | /* |
| 824 | * Check if rssi is good enough for reduced Tx power, but not in loose |
| 825 | * scheme. |
| 826 | */ |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 827 | if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 828 | iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 829 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, |
| 830 | false); |
| 831 | else |
| 832 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); |
| 833 | |
| 834 | if (ret) |
| 835 | IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); |
| 836 | |
| 837 | ieee80211_iterate_active_interfaces_atomic( |
| 838 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 839 | iwl_mvm_bt_rssi_iterator, &data); |
| 840 | |
| 841 | /* |
| 842 | * If there are no BSS / P2P client interfaces, reduced Tx Power is |
| 843 | * irrelevant since it is based on the RSSI coming from the beacon. |
| 844 | * Use BT_KILL_MSK_DEFAULT in that case. |
| 845 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 846 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 847 | |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 848 | if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 849 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 850 | } |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 851 | |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame^] | 852 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) |
| 853 | #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) |
| 854 | |
| 855 | u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm, |
| 856 | struct ieee80211_sta *sta) |
| 857 | { |
| 858 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; |
| 859 | enum iwl_bt_coex_lut_type lut_type; |
| 860 | |
| 861 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < |
| 862 | BT_LOW_TRAFFIC) |
| 863 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; |
| 864 | |
| 865 | lut_type = iwl_get_coex_type(mvm, mvmsta->vif); |
| 866 | |
| 867 | if (lut_type == BT_COEX_LOOSE_LUT) |
| 868 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; |
| 869 | |
| 870 | /* tight coex, high bt traffic, reduce AGG time limit */ |
| 871 | return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; |
| 872 | } |
| 873 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 874 | void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 875 | { |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 876 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
| 877 | return; |
| 878 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 879 | iwl_mvm_bt_coex_notif_handle(mvm); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 880 | } |