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 | * |
Emmanuel Grumbach | 51368bf | 2013-12-30 13:15:54 +0200 | [diff] [blame] | 8 | * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 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 | * |
Emmanuel Grumbach | 51368bf | 2013-12-30 13:15:54 +0200 | [diff] [blame] | 33 | * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 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 | d1d5e3c | 2013-09-11 13:33:28 +0300 | [diff] [blame] | 134 | static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { |
| 135 | { |
| 136 | cpu_to_le32(0x40000000), |
| 137 | cpu_to_le32(0x00000000), |
| 138 | cpu_to_le32(0x44000000), |
| 139 | cpu_to_le32(0x00000000), |
| 140 | cpu_to_le32(0x40000000), |
| 141 | cpu_to_le32(0x00000000), |
| 142 | cpu_to_le32(0x44000000), |
| 143 | cpu_to_le32(0x00000000), |
| 144 | cpu_to_le32(0xc0004000), |
| 145 | cpu_to_le32(0xf0005000), |
| 146 | cpu_to_le32(0xc0004000), |
| 147 | cpu_to_le32(0xf0005000), |
| 148 | }, |
| 149 | { |
| 150 | cpu_to_le32(0x40000000), |
| 151 | cpu_to_le32(0x00000000), |
| 152 | cpu_to_le32(0x44000000), |
| 153 | cpu_to_le32(0x00000000), |
| 154 | cpu_to_le32(0x40000000), |
| 155 | cpu_to_le32(0x00000000), |
| 156 | cpu_to_le32(0x44000000), |
| 157 | cpu_to_le32(0x00000000), |
| 158 | cpu_to_le32(0xc0004000), |
| 159 | cpu_to_le32(0xf0005000), |
| 160 | cpu_to_le32(0xc0004000), |
| 161 | cpu_to_le32(0xf0005000), |
| 162 | }, |
| 163 | { |
| 164 | cpu_to_le32(0x40000000), |
| 165 | cpu_to_le32(0x00000000), |
| 166 | cpu_to_le32(0x44000000), |
| 167 | cpu_to_le32(0x00000000), |
| 168 | cpu_to_le32(0x40000000), |
| 169 | cpu_to_le32(0x00000000), |
| 170 | cpu_to_le32(0x44000000), |
| 171 | cpu_to_le32(0x00000000), |
| 172 | cpu_to_le32(0xc0004000), |
| 173 | cpu_to_le32(0xf0005000), |
| 174 | cpu_to_le32(0xc0004000), |
| 175 | cpu_to_le32(0xf0005000), |
| 176 | }, |
| 177 | }; |
| 178 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 179 | static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { |
| 180 | { |
| 181 | /* Tight */ |
| 182 | cpu_to_le32(0xaaaaaaaa), |
| 183 | cpu_to_le32(0xaaaaaaaa), |
| 184 | cpu_to_le32(0xaeaaaaaa), |
| 185 | cpu_to_le32(0xaaaaaaaa), |
| 186 | cpu_to_le32(0xcc00ff28), |
| 187 | cpu_to_le32(0x0000aaaa), |
| 188 | cpu_to_le32(0xcc00aaaa), |
| 189 | cpu_to_le32(0x0000aaaa), |
| 190 | cpu_to_le32(0xc0004000), |
| 191 | cpu_to_le32(0x00000000), |
| 192 | cpu_to_le32(0xf0005000), |
| 193 | cpu_to_le32(0xf0005000), |
| 194 | }, |
| 195 | { |
| 196 | /* Loose */ |
| 197 | cpu_to_le32(0xaaaaaaaa), |
| 198 | cpu_to_le32(0xaaaaaaaa), |
| 199 | cpu_to_le32(0xaaaaaaaa), |
| 200 | cpu_to_le32(0xaaaaaaaa), |
| 201 | cpu_to_le32(0xcc00ff28), |
| 202 | cpu_to_le32(0x0000aaaa), |
| 203 | cpu_to_le32(0xcc00aaaa), |
| 204 | cpu_to_le32(0x0000aaaa), |
| 205 | cpu_to_le32(0x00000000), |
| 206 | cpu_to_le32(0x00000000), |
| 207 | cpu_to_le32(0xf0005000), |
| 208 | cpu_to_le32(0xf0005000), |
| 209 | }, |
| 210 | { |
| 211 | /* Tx Tx disabled */ |
| 212 | cpu_to_le32(0xaaaaaaaa), |
| 213 | cpu_to_le32(0xaaaaaaaa), |
| 214 | cpu_to_le32(0xaaaaaaaa), |
| 215 | cpu_to_le32(0xaaaaaaaa), |
| 216 | cpu_to_le32(0xcc00ff28), |
| 217 | cpu_to_le32(0x0000aaaa), |
| 218 | cpu_to_le32(0xcc00aaaa), |
| 219 | cpu_to_le32(0x0000aaaa), |
| 220 | cpu_to_le32(0xC0004000), |
| 221 | cpu_to_le32(0xC0004000), |
| 222 | cpu_to_le32(0xF0005000), |
| 223 | cpu_to_le32(0xF0005000), |
| 224 | }, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 225 | }; |
| 226 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 227 | /* 20MHz / 40MHz below / 40Mhz above*/ |
| 228 | static const __le64 iwl_ci_mask[][3] = { |
| 229 | /* dummy entry for channel 0 */ |
| 230 | {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, |
| 231 | { |
| 232 | cpu_to_le64(0x0000001FFFULL), |
| 233 | cpu_to_le64(0x0ULL), |
| 234 | cpu_to_le64(0x00007FFFFFULL), |
| 235 | }, |
| 236 | { |
| 237 | cpu_to_le64(0x000000FFFFULL), |
| 238 | cpu_to_le64(0x0ULL), |
| 239 | cpu_to_le64(0x0003FFFFFFULL), |
| 240 | }, |
| 241 | { |
| 242 | cpu_to_le64(0x000003FFFCULL), |
| 243 | cpu_to_le64(0x0ULL), |
| 244 | cpu_to_le64(0x000FFFFFFCULL), |
| 245 | }, |
| 246 | { |
| 247 | cpu_to_le64(0x00001FFFE0ULL), |
| 248 | cpu_to_le64(0x0ULL), |
| 249 | cpu_to_le64(0x007FFFFFE0ULL), |
| 250 | }, |
| 251 | { |
| 252 | cpu_to_le64(0x00007FFF80ULL), |
| 253 | cpu_to_le64(0x00007FFFFFULL), |
| 254 | cpu_to_le64(0x01FFFFFF80ULL), |
| 255 | }, |
| 256 | { |
| 257 | cpu_to_le64(0x0003FFFC00ULL), |
| 258 | cpu_to_le64(0x0003FFFFFFULL), |
| 259 | cpu_to_le64(0x0FFFFFFC00ULL), |
| 260 | }, |
| 261 | { |
| 262 | cpu_to_le64(0x000FFFF000ULL), |
| 263 | cpu_to_le64(0x000FFFFFFCULL), |
| 264 | cpu_to_le64(0x3FFFFFF000ULL), |
| 265 | }, |
| 266 | { |
| 267 | cpu_to_le64(0x007FFF8000ULL), |
| 268 | cpu_to_le64(0x007FFFFFE0ULL), |
| 269 | cpu_to_le64(0xFFFFFF8000ULL), |
| 270 | }, |
| 271 | { |
| 272 | cpu_to_le64(0x01FFFE0000ULL), |
| 273 | cpu_to_le64(0x01FFFFFF80ULL), |
| 274 | cpu_to_le64(0xFFFFFE0000ULL), |
| 275 | }, |
| 276 | { |
| 277 | cpu_to_le64(0x0FFFF00000ULL), |
| 278 | cpu_to_le64(0x0FFFFFFC00ULL), |
| 279 | cpu_to_le64(0x0ULL), |
| 280 | }, |
| 281 | { |
| 282 | cpu_to_le64(0x3FFFC00000ULL), |
| 283 | cpu_to_le64(0x3FFFFFF000ULL), |
| 284 | cpu_to_le64(0x0) |
| 285 | }, |
| 286 | { |
| 287 | cpu_to_le64(0xFFFE000000ULL), |
| 288 | cpu_to_le64(0xFFFFFF8000ULL), |
| 289 | cpu_to_le64(0x0) |
| 290 | }, |
| 291 | { |
| 292 | cpu_to_le64(0xFFF8000000ULL), |
| 293 | cpu_to_le64(0xFFFFFE0000ULL), |
| 294 | cpu_to_le64(0x0) |
| 295 | }, |
| 296 | { |
Emmanuel Grumbach | d2ccc90 | 2013-12-24 10:55:24 +0200 | [diff] [blame] | 297 | cpu_to_le64(0xFFC0000000ULL), |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 298 | cpu_to_le64(0x0ULL), |
Emmanuel Grumbach | d2ccc90 | 2013-12-24 10:55:24 +0200 | [diff] [blame] | 299 | cpu_to_le64(0x0ULL) |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 300 | }, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 301 | }; |
| 302 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 303 | static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { |
| 304 | cpu_to_le32(0x22002200), |
| 305 | cpu_to_le32(0x33113311), |
Emmanuel Grumbach | e715c3a | 2013-06-18 05:34:58 +0300 | [diff] [blame] | 306 | }; |
| 307 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 308 | static enum iwl_bt_coex_lut_type |
| 309 | iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) |
| 310 | { |
| 311 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 312 | enum iwl_bt_coex_lut_type ret; |
| 313 | u16 phy_ctx_id; |
| 314 | |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame] | 315 | /* |
| 316 | * Checking that we hold mvm->mutex is a good idea, but the rate |
| 317 | * control can't acquire the mutex since it runs in Tx path. |
| 318 | * So this is racy in that case, but in the worst case, the AMPDU |
| 319 | * size limit will be wrong for a short time which is not a big |
| 320 | * issue. |
| 321 | */ |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 322 | |
| 323 | rcu_read_lock(); |
| 324 | |
| 325 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 326 | |
| 327 | if (!chanctx_conf || |
| 328 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { |
| 329 | rcu_read_unlock(); |
| 330 | return BT_COEX_LOOSE_LUT; |
| 331 | } |
| 332 | |
| 333 | ret = BT_COEX_TX_DIS_LUT; |
| 334 | |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 335 | if (mvm->cfg->bt_shared_single_ant) { |
| 336 | rcu_read_unlock(); |
| 337 | return ret; |
| 338 | } |
| 339 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 340 | phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); |
| 341 | |
| 342 | if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) |
| 343 | ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); |
| 344 | else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) |
| 345 | ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); |
| 346 | /* else - default = TX TX disallowed */ |
| 347 | |
| 348 | rcu_read_unlock(); |
| 349 | |
| 350 | return ret; |
| 351 | } |
| 352 | |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 353 | int iwl_send_bt_init_conf(struct iwl_mvm *mvm) |
| 354 | { |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 355 | struct iwl_bt_coex_cmd *bt_cmd; |
| 356 | struct iwl_host_cmd cmd = { |
| 357 | .id = BT_CONFIG, |
| 358 | .len = { sizeof(*bt_cmd), }, |
| 359 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, |
| 360 | .flags = CMD_SYNC, |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 361 | }; |
| 362 | int ret; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 363 | u32 flags; |
| 364 | |
| 365 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
| 366 | return 0; |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 367 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 368 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); |
| 369 | if (!bt_cmd) |
| 370 | return -ENOMEM; |
| 371 | cmd.data[0] = bt_cmd; |
| 372 | |
| 373 | bt_cmd->max_kill = 5; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 374 | bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD, |
| 375 | bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling, |
| 376 | bt_cmd->bt4_tx_tx_delta_freq_thr = 15, |
| 377 | bt_cmd->bt4_tx_rx_max_freq0 = 15, |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 378 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 379 | flags = iwlwifi_mod_params.bt_coex_active ? |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 380 | BT_COEX_NW : BT_COEX_DISABLE; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 381 | flags |= BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN | BT_SYNC_2_BT_DISABLE; |
| 382 | bt_cmd->flags = cpu_to_le32(flags); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 383 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 384 | bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 385 | BT_VALID_BT_PRIO_BOOST | |
| 386 | BT_VALID_MAX_KILL | |
| 387 | BT_VALID_3W_TMRS | |
| 388 | BT_VALID_KILL_ACK | |
| 389 | BT_VALID_KILL_CTS | |
| 390 | BT_VALID_REDUCED_TX_POWER | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 391 | BT_VALID_LUT | |
| 392 | BT_VALID_WIFI_RX_SW_PRIO_BOOST | |
| 393 | BT_VALID_WIFI_TX_SW_PRIO_BOOST | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 394 | BT_VALID_CORUN_LUT_20 | |
| 395 | BT_VALID_CORUN_LUT_40 | |
| 396 | BT_VALID_ANT_ISOLATION | |
| 397 | BT_VALID_ANT_ISOLATION_THRS | |
| 398 | BT_VALID_TXTX_DELTA_FREQ_THRS | |
Emmanuel Grumbach | b9c509c | 2013-11-28 14:58:20 +0200 | [diff] [blame] | 399 | BT_VALID_TXRX_MAX_FREQ_0 | |
| 400 | BT_VALID_SYNC_TO_SCO); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 401 | |
Emmanuel Grumbach | d1d5e3c | 2013-09-11 13:33:28 +0300 | [diff] [blame] | 402 | if (mvm->cfg->bt_shared_single_ant) |
| 403 | memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, |
| 404 | sizeof(iwl_single_shared_ant)); |
| 405 | else |
| 406 | memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, |
| 407 | sizeof(iwl_combined_lookup)); |
| 408 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 409 | memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, |
| 410 | sizeof(iwl_bt_prio_boost)); |
| 411 | memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, |
| 412 | sizeof(iwl_bt_mprio_lut)); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 413 | bt_cmd->kill_ack_msk = |
| 414 | cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 415 | bt_cmd->kill_cts_msk = |
| 416 | cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 417 | |
| 418 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 419 | 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] | 420 | |
| 421 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 422 | |
| 423 | kfree(bt_cmd); |
| 424 | return ret; |
Emmanuel Grumbach | 931d416 | 2013-01-17 09:42:25 +0200 | [diff] [blame] | 425 | } |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 426 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 427 | static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, |
| 428 | bool reduced_tx_power) |
| 429 | { |
| 430 | enum iwl_bt_kill_msk bt_kill_msk; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 431 | struct iwl_bt_coex_cmd *bt_cmd; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 432 | struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 433 | struct iwl_host_cmd cmd = { |
| 434 | .id = BT_CONFIG, |
| 435 | .data[0] = &bt_cmd, |
| 436 | .len = { sizeof(*bt_cmd), }, |
| 437 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, |
| 438 | .flags = CMD_SYNC, |
| 439 | }; |
| 440 | int ret = 0; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 441 | |
| 442 | lockdep_assert_held(&mvm->mutex); |
| 443 | |
| 444 | if (reduced_tx_power) { |
| 445 | /* Reduced Tx power has precedence on the type of the profile */ |
| 446 | bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; |
| 447 | } else { |
| 448 | /* Low latency BT profile is active: give higher prio to BT */ |
| 449 | if (BT_MBOX_MSG(notif, 3, SCO_STATE) || |
| 450 | BT_MBOX_MSG(notif, 3, A2DP_STATE) || |
| 451 | BT_MBOX_MSG(notif, 3, SNIFF_STATE)) |
| 452 | bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; |
| 453 | else |
| 454 | bt_kill_msk = BT_KILL_MSK_DEFAULT; |
| 455 | } |
| 456 | |
| 457 | IWL_DEBUG_COEX(mvm, |
| 458 | "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", |
| 459 | bt_kill_msk, |
| 460 | BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", |
| 461 | BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", |
| 462 | BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); |
| 463 | |
| 464 | /* Don't send HCMD if there is no update */ |
| 465 | if (bt_kill_msk == mvm->bt_kill_msk) |
| 466 | return 0; |
| 467 | |
| 468 | mvm->bt_kill_msk = bt_kill_msk; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 469 | |
| 470 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); |
| 471 | if (!bt_cmd) |
| 472 | return -ENOMEM; |
| 473 | cmd.data[0] = bt_cmd; |
Emmanuel Grumbach | 7352cac | 2013-10-14 18:52:23 +0300 | [diff] [blame] | 474 | bt_cmd->flags = cpu_to_le32(BT_COEX_NW); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 475 | |
| 476 | bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); |
| 477 | bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); |
Emmanuel Grumbach | 7352cac | 2013-10-14 18:52:23 +0300 | [diff] [blame] | 478 | bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | |
| 479 | BT_VALID_KILL_ACK | |
| 480 | BT_VALID_KILL_CTS); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 481 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 482 | IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", |
| 483 | iwl_bt_ack_kill_msk[bt_kill_msk], |
| 484 | iwl_bt_cts_kill_msk[bt_kill_msk]); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 485 | |
| 486 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 487 | |
| 488 | kfree(bt_cmd); |
| 489 | return ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 490 | } |
| 491 | |
Emmanuel Grumbach | 32a65c3 | 2014-01-12 11:19:13 +0200 | [diff] [blame] | 492 | int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, bool enable) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 493 | { |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 494 | struct iwl_bt_coex_cmd *bt_cmd; |
| 495 | /* Send ASYNC since this can be sent from an atomic context */ |
| 496 | struct iwl_host_cmd cmd = { |
| 497 | .id = BT_CONFIG, |
| 498 | .len = { sizeof(*bt_cmd), }, |
| 499 | .dataflags = { IWL_HCMD_DFL_DUP, }, |
| 500 | .flags = CMD_ASYNC, |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 501 | }; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 502 | struct iwl_mvm_sta *mvmsta; |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 503 | int ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 504 | |
Emmanuel Grumbach | f327b04 | 2014-01-14 08:30:32 +0200 | [diff] [blame] | 505 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); |
| 506 | if (!mvmsta) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 507 | return 0; |
| 508 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 509 | /* nothing to do */ |
Emmanuel Grumbach | 32a65c3 | 2014-01-12 11:19:13 +0200 | [diff] [blame] | 510 | if (mvmsta->bt_reduced_txpower_dbg || |
| 511 | mvmsta->bt_reduced_txpower == enable) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 512 | return 0; |
| 513 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 514 | bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); |
| 515 | if (!bt_cmd) |
| 516 | return -ENOMEM; |
| 517 | cmd.data[0] = bt_cmd; |
Emmanuel Grumbach | 7352cac | 2013-10-14 18:52:23 +0300 | [diff] [blame] | 518 | bt_cmd->flags = cpu_to_le32(BT_COEX_NW); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 519 | |
Emmanuel Grumbach | 7352cac | 2013-10-14 18:52:23 +0300 | [diff] [blame] | 520 | bt_cmd->valid_bit_msk = |
| 521 | cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 522 | bt_cmd->bt_reduced_tx_power = sta_id; |
| 523 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 524 | if (enable) |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 525 | bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 526 | |
| 527 | IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", |
| 528 | enable ? "en" : "dis", sta_id); |
| 529 | |
| 530 | mvmsta->bt_reduced_txpower = enable; |
| 531 | |
Emmanuel Grumbach | 03e304e | 2013-06-26 15:54:34 +0300 | [diff] [blame] | 532 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 533 | |
| 534 | kfree(bt_cmd); |
| 535 | return ret; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 536 | } |
| 537 | |
| 538 | struct iwl_bt_iterator_data { |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 539 | struct iwl_bt_coex_profile_notif *notif; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 540 | struct iwl_mvm *mvm; |
| 541 | u32 num_bss_ifaces; |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 542 | bool reduced_tx_power; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 543 | struct ieee80211_chanctx_conf *primary; |
| 544 | struct ieee80211_chanctx_conf *secondary; |
Emmanuel Grumbach | 0ee5bcd | 2014-01-15 16:57:54 +0200 | [diff] [blame] | 545 | bool primary_ll; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 546 | }; |
| 547 | |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 548 | static inline |
| 549 | void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, |
| 550 | struct ieee80211_vif *vif, |
| 551 | bool enable, int rssi) |
| 552 | { |
| 553 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 554 | |
| 555 | mvmvif->bf_data.last_bt_coex_event = rssi; |
| 556 | mvmvif->bf_data.bt_coex_max_thold = |
| 557 | enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; |
| 558 | mvmvif->bf_data.bt_coex_min_thold = |
| 559 | enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; |
| 560 | } |
| 561 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 562 | /* must be called under rcu_read_lock */ |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 563 | static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, |
| 564 | struct ieee80211_vif *vif) |
| 565 | { |
| 566 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 567 | struct iwl_bt_iterator_data *data = _data; |
| 568 | struct iwl_mvm *mvm = data->mvm; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 569 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 570 | enum ieee80211_smps_mode smps_mode; |
Emmanuel Grumbach | f6415f6 | 2013-12-26 15:32:40 +0200 | [diff] [blame] | 571 | u32 bt_activity_grading; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 572 | int ave_rssi; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 573 | |
Eytan Lifshitz | 9ee718a | 2013-05-19 19:14:41 +0300 | [diff] [blame] | 574 | lockdep_assert_held(&mvm->mutex); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 575 | |
Emmanuel Grumbach | f6415f6 | 2013-12-26 15:32:40 +0200 | [diff] [blame] | 576 | switch (vif->type) { |
| 577 | case NL80211_IFTYPE_STATION: |
| 578 | /* default smps_mode for BSS / P2P client is AUTOMATIC */ |
| 579 | smps_mode = IEEE80211_SMPS_AUTOMATIC; |
| 580 | data->num_bss_ifaces++; |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 581 | |
Emmanuel Grumbach | f6415f6 | 2013-12-26 15:32:40 +0200 | [diff] [blame] | 582 | /* |
| 583 | * Count unassoc BSSes, relax SMSP constraints |
| 584 | * and disable reduced Tx Power |
| 585 | */ |
| 586 | if (!vif->bss_conf.assoc) { |
| 587 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, |
| 588 | smps_mode); |
| 589 | if (iwl_mvm_bt_coex_reduced_txp(mvm, |
| 590 | mvmvif->ap_sta_id, |
| 591 | false)) |
| 592 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
| 593 | return; |
| 594 | } |
| 595 | break; |
| 596 | case NL80211_IFTYPE_AP: |
| 597 | /* default smps_mode for AP / GO is OFF */ |
| 598 | smps_mode = IEEE80211_SMPS_OFF; |
| 599 | if (!mvmvif->ap_ibss_active) { |
| 600 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, |
| 601 | smps_mode); |
| 602 | return; |
| 603 | } |
| 604 | |
| 605 | /* the Ack / Cts kill mask must be default if AP / GO */ |
| 606 | data->reduced_tx_power = false; |
| 607 | break; |
| 608 | default: |
| 609 | return; |
| 610 | } |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 611 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 612 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 613 | |
| 614 | /* If channel context is invalid or not on 2.4GHz .. */ |
| 615 | if ((!chanctx_conf || |
| 616 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { |
Emmanuel Grumbach | f6415f6 | 2013-12-26 15:32:40 +0200 | [diff] [blame] | 617 | /* ... relax constraints and disable rssi events */ |
| 618 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, |
| 619 | smps_mode); |
| 620 | if (vif->type == NL80211_IFTYPE_STATION) |
| 621 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 622 | return; |
| 623 | } |
| 624 | |
Emmanuel Grumbach | f6415f6 | 2013-12-26 15:32:40 +0200 | [diff] [blame] | 625 | bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); |
| 626 | if (bt_activity_grading >= BT_HIGH_TRAFFIC) |
| 627 | smps_mode = IEEE80211_SMPS_STATIC; |
| 628 | else if (bt_activity_grading >= BT_LOW_TRAFFIC) |
| 629 | smps_mode = vif->type == NL80211_IFTYPE_AP ? |
| 630 | IEEE80211_SMPS_OFF : |
| 631 | IEEE80211_SMPS_DYNAMIC; |
| 632 | IWL_DEBUG_COEX(data->mvm, |
| 633 | "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", |
| 634 | mvmvif->id, data->notif->bt_status, bt_activity_grading, |
| 635 | smps_mode); |
| 636 | |
| 637 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); |
| 638 | |
Emmanuel Grumbach | 0ee5bcd | 2014-01-15 16:57:54 +0200 | [diff] [blame] | 639 | /* low latency is always primary */ |
| 640 | if (iwl_mvm_vif_low_latency(mvmvif)) { |
| 641 | data->primary_ll = true; |
| 642 | |
| 643 | data->secondary = data->primary; |
| 644 | data->primary = chanctx_conf; |
| 645 | } |
| 646 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 647 | if (vif->type == NL80211_IFTYPE_AP) { |
Johannes Berg | 5023d96 | 2013-07-31 14:07:43 +0200 | [diff] [blame] | 648 | if (!mvmvif->ap_ibss_active) |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 649 | return; |
| 650 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 651 | if (chanctx_conf == data->primary) |
| 652 | return; |
| 653 | |
Emmanuel Grumbach | 0ee5bcd | 2014-01-15 16:57:54 +0200 | [diff] [blame] | 654 | if (!data->primary_ll) { |
| 655 | /* |
| 656 | * downgrade the current primary no matter what its |
| 657 | * type is. |
| 658 | */ |
| 659 | data->secondary = data->primary; |
| 660 | data->primary = chanctx_conf; |
| 661 | } else { |
| 662 | /* there is low latency vif - we will be secondary */ |
| 663 | data->secondary = chanctx_conf; |
| 664 | } |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 665 | return; |
| 666 | } |
| 667 | |
Emmanuel Grumbach | 0ee5bcd | 2014-01-15 16:57:54 +0200 | [diff] [blame] | 668 | /* |
| 669 | * STA / P2P Client, try to be primary if first vif. If we are in low |
| 670 | * latency mode, we are already in primary and just don't do much |
| 671 | */ |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 672 | if (!data->primary || data->primary == chanctx_conf) |
| 673 | data->primary = chanctx_conf; |
| 674 | else if (!data->secondary) |
| 675 | /* if secondary is not NULL, it might be a GO */ |
| 676 | data->secondary = chanctx_conf; |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 677 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 678 | /* don't reduce the Tx power if in loose scheme */ |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 679 | if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || |
| 680 | mvm->cfg->bt_shared_single_ant) { |
| 681 | data->reduced_tx_power = false; |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 682 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 683 | return; |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 684 | } |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 685 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 686 | /* reduced Txpower only if BT is on, so ...*/ |
Emmanuel Grumbach | 0af8835 | 2013-10-15 12:37:38 +0300 | [diff] [blame] | 687 | if (!data->notif->bt_status) { |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 688 | /* ... cancel reduced Tx power ... */ |
| 689 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) |
| 690 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 691 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 692 | |
| 693 | /* ... and there is no need to get reports on RSSI any more. */ |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 694 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 695 | return; |
| 696 | } |
| 697 | |
Andrei Otcheretianski | 911222b | 2013-07-21 17:37:19 +0300 | [diff] [blame] | 698 | /* try to get the avg rssi from fw */ |
| 699 | ave_rssi = mvmvif->bf_data.ave_beacon_signal; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 700 | |
| 701 | /* if the RSSI isn't valid, fake it is very low */ |
| 702 | if (!ave_rssi) |
| 703 | ave_rssi = -100; |
| 704 | if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { |
| 705 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) |
| 706 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
| 707 | |
| 708 | /* |
| 709 | * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the |
| 710 | * BSS / P2P clients have rssi above threshold. |
| 711 | * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before |
| 712 | * the iteration, if one interface's rssi isn't good enough, |
| 713 | * bt_kill_msk will be set to default values. |
| 714 | */ |
| 715 | } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { |
| 716 | if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) |
| 717 | IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); |
| 718 | |
| 719 | /* |
| 720 | * One interface hasn't rssi above threshold, bt_kill_msk must |
| 721 | * be set to default values. |
| 722 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 723 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 724 | } |
| 725 | |
| 726 | /* Begin to monitor the RSSI: it may influence the reduced Tx power */ |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 727 | iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 728 | } |
| 729 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 730 | static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 731 | { |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 732 | struct iwl_bt_iterator_data data = { |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 733 | .mvm = mvm, |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 734 | .notif = &mvm->last_bt_notif, |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 735 | .reduced_tx_power = true, |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 736 | }; |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 737 | struct iwl_bt_coex_ci_cmd cmd = {}; |
| 738 | u8 ci_bw_idx; |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 739 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 740 | rcu_read_lock(); |
Emmanuel Grumbach | 7da052b | 2013-02-10 17:06:17 +0200 | [diff] [blame] | 741 | ieee80211_iterate_active_interfaces_atomic( |
| 742 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 743 | iwl_mvm_bt_notif_iterator, &data); |
| 744 | |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 745 | if (data.primary) { |
| 746 | struct ieee80211_chanctx_conf *chan = data.primary; |
| 747 | if (WARN_ON(!chan->def.chan)) { |
| 748 | rcu_read_unlock(); |
| 749 | return; |
| 750 | } |
| 751 | |
| 752 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { |
| 753 | ci_bw_idx = 0; |
| 754 | cmd.co_run_bw_primary = 0; |
| 755 | } else { |
| 756 | cmd.co_run_bw_primary = 1; |
| 757 | if (chan->def.center_freq1 > |
| 758 | chan->def.chan->center_freq) |
| 759 | ci_bw_idx = 2; |
| 760 | else |
| 761 | ci_bw_idx = 1; |
| 762 | } |
| 763 | |
| 764 | cmd.bt_primary_ci = |
| 765 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; |
| 766 | cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); |
| 767 | } |
| 768 | |
| 769 | if (data.secondary) { |
| 770 | struct ieee80211_chanctx_conf *chan = data.secondary; |
| 771 | if (WARN_ON(!data.secondary->def.chan)) { |
| 772 | rcu_read_unlock(); |
| 773 | return; |
| 774 | } |
| 775 | |
| 776 | if (chan->def.width < NL80211_CHAN_WIDTH_40) { |
| 777 | ci_bw_idx = 0; |
| 778 | cmd.co_run_bw_secondary = 0; |
| 779 | } else { |
| 780 | cmd.co_run_bw_secondary = 1; |
| 781 | if (chan->def.center_freq1 > |
| 782 | chan->def.chan->center_freq) |
| 783 | ci_bw_idx = 2; |
| 784 | else |
| 785 | ci_bw_idx = 1; |
| 786 | } |
| 787 | |
| 788 | cmd.bt_secondary_ci = |
| 789 | iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; |
Emmanuel Grumbach | c92f06a | 2013-10-29 22:50:49 +0200 | [diff] [blame] | 790 | cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 791 | } |
| 792 | |
| 793 | rcu_read_unlock(); |
| 794 | |
| 795 | /* Don't spam the fw with the same command over and over */ |
| 796 | if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { |
| 797 | if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC, |
| 798 | sizeof(cmd), &cmd)) |
| 799 | IWL_ERR(mvm, "Failed to send BT_CI cmd"); |
| 800 | memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); |
| 801 | } |
| 802 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 803 | /* |
| 804 | * If there are no BSS / P2P client interfaces, reduced Tx Power is |
| 805 | * irrelevant since it is based on the RSSI coming from the beacon. |
| 806 | * Use BT_KILL_MSK_DEFAULT in that case. |
| 807 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 808 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 809 | |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 810 | 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] | 811 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | /* upon association, the fw will send in BT Coex notification */ |
| 815 | int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, |
| 816 | struct iwl_rx_cmd_buffer *rxb, |
| 817 | struct iwl_device_cmd *dev_cmd) |
| 818 | { |
| 819 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| 820 | struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; |
| 821 | |
| 822 | |
| 823 | IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 824 | IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", |
| 825 | notif->bt_status ? "ON" : "OFF"); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 826 | 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] | 827 | IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); |
| 828 | IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", |
| 829 | le32_to_cpu(notif->primary_ch_lut)); |
| 830 | IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", |
| 831 | le32_to_cpu(notif->secondary_ch_lut)); |
| 832 | IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", |
| 833 | le32_to_cpu(notif->bt_activity_grading)); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 834 | IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", |
| 835 | notif->bt_agg_traffic_load); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 836 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 837 | /* remember this notification for future use: rssi fluctuations */ |
| 838 | memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); |
| 839 | |
| 840 | iwl_mvm_bt_coex_notif_handle(mvm); |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 841 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 842 | /* |
| 843 | * This is an async handler for a notification, returning anything other |
| 844 | * than 0 doesn't make sense even if HCMD failed. |
| 845 | */ |
Emmanuel Grumbach | f421f9c | 2013-01-17 14:20:29 +0200 | [diff] [blame] | 846 | return 0; |
| 847 | } |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 848 | |
| 849 | static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, |
| 850 | struct ieee80211_vif *vif) |
| 851 | { |
| 852 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; |
| 853 | struct iwl_bt_iterator_data *data = _data; |
| 854 | struct iwl_mvm *mvm = data->mvm; |
| 855 | |
| 856 | struct ieee80211_sta *sta; |
| 857 | struct iwl_mvm_sta *mvmsta; |
| 858 | |
Emmanuel Grumbach | f6fc577 | 2013-09-08 08:57:15 +0300 | [diff] [blame] | 859 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 860 | |
| 861 | rcu_read_lock(); |
| 862 | chanctx_conf = rcu_dereference(vif->chanctx_conf); |
| 863 | /* If channel context is invalid or not on 2.4GHz - don't count it */ |
| 864 | if (!chanctx_conf || |
| 865 | chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { |
| 866 | rcu_read_unlock(); |
| 867 | return; |
| 868 | } |
| 869 | rcu_read_unlock(); |
| 870 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 871 | if (vif->type != NL80211_IFTYPE_STATION || |
| 872 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) |
| 873 | return; |
| 874 | |
| 875 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], |
| 876 | lockdep_is_held(&mvm->mutex)); |
Emmanuel Grumbach | 56c07a9 | 2013-10-21 11:03:53 +0300 | [diff] [blame] | 877 | |
| 878 | /* This can happen if the station has been removed right now */ |
| 879 | if (IS_ERR_OR_NULL(sta)) |
| 880 | return; |
| 881 | |
Johannes Berg | 5b577a9 | 2013-11-14 18:20:04 +0100 | [diff] [blame] | 882 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 883 | |
Emmanuel Grumbach | 8e0366f | 2013-06-25 21:57:08 +0300 | [diff] [blame] | 884 | data->num_bss_ifaces++; |
| 885 | |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 886 | /* |
| 887 | * This interface doesn't support reduced Tx power (because of low |
| 888 | * RSSI probably), then set bt_kill_msk to default values. |
| 889 | */ |
| 890 | if (!mvmsta->bt_reduced_txpower) |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 891 | data->reduced_tx_power = false; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 892 | /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ |
| 893 | } |
| 894 | |
| 895 | void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| 896 | enum ieee80211_rssi_event rssi_event) |
| 897 | { |
| 898 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 899 | struct iwl_bt_iterator_data data = { |
| 900 | .mvm = mvm, |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 901 | .reduced_tx_power = true, |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 902 | }; |
| 903 | int ret; |
| 904 | |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 905 | lockdep_assert_held(&mvm->mutex); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 906 | |
| 907 | /* Rssi update while not associated ?! */ |
| 908 | if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 909 | return; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 910 | |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 911 | /* No BT - reports should be disabled */ |
Emmanuel Grumbach | 0af8835 | 2013-10-15 12:37:38 +0300 | [diff] [blame] | 912 | if (!mvm->last_bt_notif.bt_status) |
Johannes Berg | 3dd1cd2 | 2013-10-02 12:05:24 +0200 | [diff] [blame] | 913 | return; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 914 | |
| 915 | IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, |
| 916 | rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); |
| 917 | |
| 918 | /* |
| 919 | * Check if rssi is good enough for reduced Tx power, but not in loose |
| 920 | * scheme. |
| 921 | */ |
Emmanuel Grumbach | 3914991 | 2013-07-14 13:40:21 +0300 | [diff] [blame] | 922 | if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || |
Emmanuel Grumbach | 4515f30 | 2013-06-30 07:51:54 +0300 | [diff] [blame] | 923 | iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 924 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, |
| 925 | false); |
| 926 | else |
| 927 | ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); |
| 928 | |
| 929 | if (ret) |
| 930 | IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); |
| 931 | |
| 932 | ieee80211_iterate_active_interfaces_atomic( |
| 933 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 934 | iwl_mvm_bt_rssi_iterator, &data); |
| 935 | |
| 936 | /* |
| 937 | * If there are no BSS / P2P client interfaces, reduced Tx Power is |
| 938 | * irrelevant since it is based on the RSSI coming from the beacon. |
| 939 | * Use BT_KILL_MSK_DEFAULT in that case. |
| 940 | */ |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 941 | data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 942 | |
Emmanuel Grumbach | 9e511c3 | 2013-03-29 14:52:17 +0300 | [diff] [blame] | 943 | 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] | 944 | IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); |
Emmanuel Grumbach | 2b76ef1 | 2013-01-24 10:35:13 +0200 | [diff] [blame] | 945 | } |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 946 | |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame] | 947 | #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) |
| 948 | #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) |
| 949 | |
| 950 | u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm, |
| 951 | struct ieee80211_sta *sta) |
| 952 | { |
Johannes Berg | 5b577a9 | 2013-11-14 18:20:04 +0100 | [diff] [blame] | 953 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame] | 954 | enum iwl_bt_coex_lut_type lut_type; |
| 955 | |
| 956 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < |
Emmanuel Grumbach | c211935 | 2013-11-13 22:00:30 +0200 | [diff] [blame] | 957 | BT_HIGH_TRAFFIC) |
Emmanuel Grumbach | 9145d15 | 2013-07-18 08:45:41 +0300 | [diff] [blame] | 958 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; |
| 959 | |
| 960 | lut_type = iwl_get_coex_type(mvm, mvmsta->vif); |
| 961 | |
| 962 | if (lut_type == BT_COEX_LOOSE_LUT) |
| 963 | return LINK_QUAL_AGG_TIME_LIMIT_DEF; |
| 964 | |
| 965 | /* tight coex, high bt traffic, reduce AGG time limit */ |
| 966 | return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; |
| 967 | } |
| 968 | |
Emmanuel Grumbach | ffa6c70 | 2013-10-06 11:41:20 +0300 | [diff] [blame] | 969 | bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, |
| 970 | struct ieee80211_sta *sta) |
| 971 | { |
Johannes Berg | 5b577a9 | 2013-11-14 18:20:04 +0100 | [diff] [blame] | 972 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
Emmanuel Grumbach | ffa6c70 | 2013-10-06 11:41:20 +0300 | [diff] [blame] | 973 | |
| 974 | if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < |
| 975 | BT_HIGH_TRAFFIC) |
| 976 | return true; |
| 977 | |
| 978 | /* |
| 979 | * In Tight, BT can't Rx while we Tx, so use both antennas since BT is |
| 980 | * already killed. |
| 981 | * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we |
| 982 | * Tx. |
| 983 | */ |
| 984 | return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; |
| 985 | } |
| 986 | |
Emmanuel Grumbach | 8e484f0 | 2013-10-02 15:02:25 +0300 | [diff] [blame] | 987 | void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 988 | { |
Emmanuel Grumbach | dac94da | 2013-06-18 07:35:27 +0300 | [diff] [blame] | 989 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX)) |
| 990 | return; |
| 991 | |
Emmanuel Grumbach | d37cac9 | 2013-03-29 14:56:19 +0300 | [diff] [blame] | 992 | iwl_mvm_bt_coex_notif_handle(mvm); |
Emmanuel Grumbach | 9166b1e | 2013-03-20 15:28:27 +0200 | [diff] [blame] | 993 | } |