Commit | Line | Data |
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17d50d1d VT |
1 | /* |
2 | * Copyright (c) 2009 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 | ||
f14462c6 VT |
20 | #define ATH_WLANACTIVE_GPIO 5 |
21 | #define ATH_BTACTIVE_GPIO 6 | |
8c8f9ba7 | 22 | #define ATH_BTPRIORITY_GPIO 7 |
f14462c6 | 23 | |
1773912b VT |
24 | #define ATH_BTCOEX_DEF_BT_PERIOD 45 |
25 | #define ATH_BTCOEX_DEF_DUTY_CYCLE 55 | |
26 | #define ATH_BTCOEX_BMISS_THRESH 50 | |
27 | ||
28 | #define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */ | |
29 | #define ATH_BT_CNT_THRESHOLD 3 | |
30 | ||
22f25d0d VT |
31 | enum ath_btcoex_scheme { |
32 | ATH_BTCOEX_CFG_NONE, | |
33 | ATH_BTCOEX_CFG_2WIRE, | |
34 | ATH_BTCOEX_CFG_3WIRE, | |
35 | }; | |
36 | ||
1773912b VT |
37 | enum ath_stomp_type { |
38 | ATH_BTCOEX_NO_STOMP, | |
39 | ATH_BTCOEX_STOMP_ALL, | |
40 | ATH_BTCOEX_STOMP_LOW, | |
41 | ATH_BTCOEX_STOMP_NONE | |
42 | }; | |
43 | ||
44 | enum ath_bt_mode { | |
45 | ATH_BT_COEX_MODE_LEGACY, /* legacy rx_clear mode */ | |
46 | ATH_BT_COEX_MODE_UNSLOTTED, /* untimed/unslotted mode */ | |
47 | ATH_BT_COEX_MODE_SLOTTED, /* slotted mode */ | |
48 | ATH_BT_COEX_MODE_DISALBED, /* coexistence disabled */ | |
49 | }; | |
50 | ||
51 | struct ath_btcoex_config { | |
52 | u8 bt_time_extend; | |
53 | bool bt_txstate_extend; | |
54 | bool bt_txframe_extend; | |
55 | enum ath_bt_mode bt_mode; /* coexistence mode */ | |
56 | bool bt_quiet_collision; | |
57 | bool bt_rxclear_polarity; /* invert rx_clear as WLAN_ACTIVE*/ | |
58 | u8 bt_priority_time; | |
59 | u8 bt_first_slot_time; | |
60 | bool bt_hold_rx_clear; | |
61 | }; | |
62 | ||
f14462c6 | 63 | struct ath_btcoex_info { |
22f25d0d | 64 | enum ath_btcoex_scheme btcoex_scheme; |
f14462c6 VT |
65 | u8 wlanactive_gpio; |
66 | u8 btactive_gpio; | |
1773912b VT |
67 | u8 btpriority_gpio; |
68 | u8 bt_duty_cycle; /* BT duty cycle in percentage */ | |
69 | int bt_stomp_type; /* Types of BT stomping */ | |
70 | u32 bt_coex_mode; /* Register setting for AR_BT_COEX_MODE */ | |
71 | u32 bt_coex_weights; /* Register setting for AR_BT_COEX_WEIGHT */ | |
72 | u32 bt_coex_mode2; /* Register setting for AR_BT_COEX_MODE2 */ | |
73 | u32 btcoex_no_stomp; /* in usec */ | |
74 | u32 btcoex_period; /* in usec */ | |
75 | u32 bt_priority_cnt; | |
76 | unsigned long bt_priority_time; | |
77 | bool hw_timer_enabled; | |
78 | spinlock_t btcoex_lock; | |
79 | struct timer_list period_timer; /* Timer for BT period */ | |
80 | struct ath_gen_timer *no_stomp_timer; /*Timer for no BT stomping*/ | |
f14462c6 VT |
81 | }; |
82 | ||
fe12946e | 83 | bool ath_btcoex_supported(u16 subsysid); |
1773912b | 84 | int ath9k_hw_btcoex_init(struct ath_hw *ah); |
17d50d1d VT |
85 | void ath9k_hw_btcoex_enable(struct ath_hw *ah); |
86 | void ath9k_hw_btcoex_disable(struct ath_hw *ah); | |
1773912b VT |
87 | void ath_btcoex_timer_resume(struct ath_softc *sc, |
88 | struct ath_btcoex_info *btinfo); | |
89 | void ath_btcoex_timer_pause(struct ath_softc *sc, | |
90 | struct ath_btcoex_info *btinfo); | |
91 | ||
92 | static inline void ath_btcoex_set_weight(struct ath_btcoex_info *btcoex_info, | |
93 | u32 bt_weight, | |
94 | u32 wlan_weight) | |
95 | { | |
96 | btcoex_info->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) | | |
97 | SM(wlan_weight, AR_BTCOEX_WL_WGHT); | |
98 | } | |
17d50d1d VT |
99 | |
100 | #endif |