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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 | } |