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 | |
| 64 | #include "fw-api-bt-coex.h" |
| 65 | #include "iwl-modparams.h" |
| 66 | #include "mvm.h" |
| 67 | |
| 68 | #define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ |
| 69 | [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ |
| 70 | ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) |
| 71 | |
| 72 | static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { |
| 73 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, |
| 74 | BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), |
| 75 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, |
| 76 | BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), |
| 77 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, |
| 78 | BT_COEX_PRIO_TBL_PRIO_LOW, 0), |
| 79 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, |
| 80 | BT_COEX_PRIO_TBL_PRIO_LOW, 1), |
| 81 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, |
| 82 | BT_COEX_PRIO_TBL_PRIO_HIGH, 0), |
| 83 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, |
| 84 | BT_COEX_PRIO_TBL_PRIO_HIGH, 1), |
| 85 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, |
| 86 | BT_COEX_PRIO_TBL_DISABLED, 0), |
| 87 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, |
| 88 | BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), |
| 89 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, |
| 90 | BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), |
| 91 | EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, |
| 92 | BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), |
| 93 | 0, 0, 0, 0, 0, 0, |
| 94 | }; |
| 95 | |
| 96 | #undef EVENT_PRIO_ANT |
| 97 | |
| 98 | int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) |
| 99 | { |
| 100 | return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, |
| 101 | sizeof(struct iwl_bt_coex_prio_tbl_cmd), |
| 102 | &iwl_bt_prio_tbl); |
| 103 | } |
| 104 | |
| 105 | static int iwl_send_bt_env(struct iwl_mvm *mvm, u8 action, u8 type) |
| 106 | { |
| 107 | struct iwl_bt_coex_prot_env_cmd env_cmd; |
| 108 | int ret; |
| 109 | |
| 110 | env_cmd.action = action; |
| 111 | env_cmd.type = type; |
| 112 | ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PROT_ENV, CMD_SYNC, |
| 113 | sizeof(env_cmd), &env_cmd); |
| 114 | if (ret) |
| 115 | IWL_ERR(mvm, "failed to send BT env command\n"); |
| 116 | return ret; |
| 117 | } |
| 118 | |
| 119 | enum iwl_bt_kill_msk { |
| 120 | BT_KILL_MSK_DEFAULT, |
| 121 | BT_KILL_MSK_SCO_HID_A2DP, |
| 122 | BT_KILL_MSK_REDUCED_TXPOW, |
| 123 | BT_KILL_MSK_MAX, |
| 124 | }; |
| 125 | |
| 126 | static const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { |
| 127 | 0xffffffff, |
| 128 | 0xfffffc00, |
| 129 | 0, |
| 130 | }; |
| 131 | |
| 132 | static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { |
| 133 | 0xffffffff, |
| 134 | 0xfffffc00, |
| 135 | 0, |
| 136 | }; |
| 137 | |
| 138 | #define IWL_BT_DEFAULT_BOOST (0xf0f0f0f0) |
| 139 | |
| 140 | /* Tight Coex */ |
| 141 | static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = { |
| 142 | cpu_to_le32(0xaaaaaaaa), |
| 143 | cpu_to_le32(0xaaaaaaaa), |
| 144 | cpu_to_le32(0xaeaaaaaa), |
| 145 | cpu_to_le32(0xaaaaaaaa), |
| 146 | cpu_to_le32(0xcc00ff28), |
| 147 | cpu_to_le32(0x0000aaaa), |
| 148 | cpu_to_le32(0xcc00aaaa), |
| 149 | cpu_to_le32(0x0000aaaa), |
| 150 | cpu_to_le32(0xc0004000), |
| 151 | cpu_to_le32(0x00000000), |
| 152 | cpu_to_le32(0xf0005000), |
| 153 | cpu_to_le32(0xf0005000), |
| 154 | }; |
| 155 | |
| 156 | /* Loose Coex */ |
| 157 | static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = { |
| 158 | cpu_to_le32(0xaaaaaaaa), |
| 159 | cpu_to_le32(0xaaaaaaaa), |
| 160 | cpu_to_le32(0xaeaaaaaa), |
| 161 | cpu_to_le32(0xaaaaaaaa), |
| 162 | cpu_to_le32(0xcc00ff28), |
| 163 | cpu_to_le32(0x0000aaaa), |
| 164 | cpu_to_le32(0xcc00aaaa), |
| 165 | cpu_to_le32(0x0000aaaa), |
| 166 | cpu_to_le32(0x00000000), |
| 167 | cpu_to_le32(0x00000000), |
| 168 | cpu_to_le32(0xf0005000), |
| 169 | cpu_to_le32(0xf0005000), |
| 170 | }; |
| 171 | |
| 172 | /* Full concurrency */ |
| 173 | static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = { |
| 174 | cpu_to_le32(0xaaaaaaaa), |
| 175 | cpu_to_le32(0xaaaaaaaa), |
| 176 | cpu_to_le32(0xaaaaaaaa), |
| 177 | cpu_to_le32(0xaaaaaaaa), |
| 178 | cpu_to_le32(0xaaaaaaaa), |
| 179 | cpu_to_le32(0xaaaaaaaa), |
| 180 | cpu_to_le32(0xaaaaaaaa), |
| 181 | cpu_to_le32(0xaaaaaaaa), |
| 182 | cpu_to_le32(0x00000000), |
| 183 | cpu_to_le32(0x00000000), |
| 184 | cpu_to_le32(0x00000000), |
| 185 | cpu_to_le32(0x00000000), |
| 186 | }; |
| 187 | |
| 188 | /* BT Antenna Coupling Threshold (dB) */ |
| 189 | #define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35) |
| 190 | |
| 191 | int iwl_send_bt_init_conf(struct iwl_mvm *mvm) |
| 192 | { |
| 193 | struct iwl_bt_coex_cmd cmd = { |
| 194 | .max_kill = 5, |
| 195 | .bt3_time_t7_value = 1, |
| 196 | .bt3_prio_sample_time = 2, |
| 197 | .bt3_timer_t2_value = 0xc, |
| 198 | }; |
| 199 | int ret; |
| 200 | |
| 201 | cmd.flags = iwlwifi_mod_params.bt_coex_active ? |
| 202 | BT_COEX_NW : BT_COEX_DISABLE; |
| 203 | cmd.flags |= iwlwifi_mod_params.bt_ch_announce ? |
| 204 | BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN : 0; |
| 205 | cmd.flags |= BT_SYNC_2_BT_DISABLE; |
| 206 | |
| 207 | cmd.valid_bit_msk = cpu_to_le16(BT_VALID_ENABLE | |
| 208 | BT_VALID_BT_PRIO_BOOST | |
| 209 | BT_VALID_MAX_KILL | |
| 210 | BT_VALID_3W_TMRS | |
| 211 | BT_VALID_KILL_ACK | |
| 212 | BT_VALID_KILL_CTS | |
| 213 | BT_VALID_REDUCED_TX_POWER | |
| 214 | BT_VALID_LUT); |
| 215 | |
| 216 | if (iwlwifi_mod_params.ant_coupling > IWL_BT_ANTENNA_COUPLING_THRESHOLD) |
| 217 | memcpy(&cmd.decision_lut, iwl_loose_lookup, |
| 218 | sizeof(iwl_tight_lookup)); |
| 219 | else |
| 220 | memcpy(&cmd.decision_lut, iwl_tight_lookup, |
| 221 | sizeof(iwl_tight_lookup)); |
| 222 | |
| 223 | cmd.bt_prio_boost = cpu_to_le32(IWL_BT_DEFAULT_BOOST); |
| 224 | cmd.kill_ack_msk = |
| 225 | cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 226 | cmd.kill_cts_msk = |
| 227 | cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); |
| 228 | |
| 229 | /* go to CALIB state in internal BT-Coex state machine */ |
| 230 | ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN, |
| 231 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| 232 | if (ret) |
| 233 | return ret; |
| 234 | |
| 235 | ret = iwl_send_bt_env(mvm, BT_COEX_ENV_CLOSE, |
| 236 | BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| 237 | if (ret) |
| 238 | return ret; |
| 239 | |
| 240 | return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC, |
| 241 | sizeof(cmd), &cmd); |
| 242 | } |