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btcoex.h
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1 /*
2  * Copyright (c) 2009-2011 Atheros Communications Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef BTCOEX_H
18 #define BTCOEX_H
19 
20 #include "hw.h"
21 
22 #define ATH_WLANACTIVE_GPIO_9280 5
23 #define ATH_BTACTIVE_GPIO_9280 6
24 #define ATH_BTPRIORITY_GPIO_9285 7
25 
26 #define ATH_WLANACTIVE_GPIO_9300 5
27 #define ATH_BTACTIVE_GPIO_9300 4
28 #define ATH_BTPRIORITY_GPIO_9300 8
29 
30 #define ATH_BTCOEX_DEF_BT_PERIOD 45
31 #define ATH_BTCOEX_DEF_DUTY_CYCLE 55
32 #define ATH_BTCOEX_BTSCAN_DUTY_CYCLE 90
33 #define ATH_BTCOEX_BMISS_THRESH 50
34 
35 #define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */
36 #define ATH_BT_CNT_THRESHOLD 3
37 #define ATH_BT_CNT_SCAN_THRESHOLD 15
38 
39 #define ATH_BTCOEX_RX_WAIT_TIME 100
40 #define ATH_BTCOEX_STOMP_FTP_THRESH 5
41 
42 #define AR9300_NUM_BT_WEIGHTS 4
43 #define AR9300_NUM_WLAN_WEIGHTS 4
44 /* Defines the BT AR_BT_COEX_WGHT used */
45 enum ath_stomp_type {
46  ATH_BTCOEX_STOMP_ALL,
47  ATH_BTCOEX_STOMP_LOW,
48  ATH_BTCOEX_STOMP_NONE,
49  ATH_BTCOEX_STOMP_LOW_FTP,
50  ATH_BTCOEX_STOMP_MAX
51 };
52 
53 enum ath_btcoex_scheme {
54  ATH_BTCOEX_CFG_NONE,
55  ATH_BTCOEX_CFG_2WIRE,
56  ATH_BTCOEX_CFG_3WIRE,
57 };
58 
59 struct ath9k_hw_mci {
60  u32 raw_intr;
61  u32 rx_msg_intr;
62  u32 cont_status;
63  u32 gpm_addr;
64  u32 gpm_len;
65  u32 gpm_idx;
66  u32 sched_addr;
67  u32 wlan_channels[4];
68  u32 wlan_cal_seq;
69  u32 wlan_cal_done;
70  u32 config;
71  u8 *gpm_buf;
72  bool ready;
73  bool update_2g5g;
74  bool is_2g;
75  bool query_bt;
76  bool unhalt_bt_gpm; /* need send UNHALT */
77  bool halted_bt_gpm; /* HALT sent */
78  bool need_flush_btinfo;
79  bool bt_version_known;
80  bool wlan_channels_update;
81  u8 wlan_ver_major;
82  u8 wlan_ver_minor;
83  u8 bt_ver_major;
84  u8 bt_ver_minor;
85  u8 bt_state;
86  u8 stomp_ftp;
87 };
88 
89 struct ath_btcoex_hw {
90  enum ath_btcoex_scheme scheme;
91  struct ath9k_hw_mci mci;
92  bool enabled;
93  u8 wlanactive_gpio;
94  u8 btactive_gpio;
95  u8 btpriority_gpio;
96  u32 bt_coex_mode; /* Register setting for AR_BT_COEX_MODE */
97  u32 bt_coex_weights; /* Register setting for AR_BT_COEX_WEIGHT */
98  u32 bt_coex_mode2; /* Register setting for AR_BT_COEX_MODE2 */
99  u32 bt_weight[AR9300_NUM_BT_WEIGHTS];
100  u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS];
101 };
102 
103 void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
104 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
105 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
106 void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
107 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
108 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
109  u32 bt_weight,
110  u32 wlan_weight,
111  enum ath_stomp_type stomp_type);
112 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
113 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
114  enum ath_stomp_type stomp_type);
115 
116 #endif
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