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 ATH_BTCOEX_HT20_MAX_TXPOWER   0x14
43#define ATH_BTCOEX_HT40_MAX_TXPOWER   0x10
44
45#define AR9300_NUM_BT_WEIGHTS   4
46#define AR9300_NUM_WLAN_WEIGHTS 4
47
48#define ATH_AIC_MAX_BT_CHANNEL  79
49
50/* Defines the BT AR_BT_COEX_WGHT used */
51enum ath_stomp_type {
52	ATH_BTCOEX_STOMP_ALL,
53	ATH_BTCOEX_STOMP_LOW,
54	ATH_BTCOEX_STOMP_NONE,
55	ATH_BTCOEX_STOMP_LOW_FTP,
56	ATH_BTCOEX_STOMP_AUDIO,
57	ATH_BTCOEX_STOMP_MAX
58};
59
60enum ath_btcoex_scheme {
61	ATH_BTCOEX_CFG_NONE,
62	ATH_BTCOEX_CFG_2WIRE,
63	ATH_BTCOEX_CFG_3WIRE,
64	ATH_BTCOEX_CFG_MCI,
65};
66
67struct ath9k_hw_mci {
68	u32 raw_intr;
69	u32 rx_msg_intr;
70	u32 cont_status;
71	u32 gpm_addr;
72	u32 gpm_len;
73	u32 gpm_idx;
74	u32 sched_addr;
75	u32 wlan_channels[4];
76	u32 wlan_cal_seq;
77	u32 wlan_cal_done;
78	u32 config;
79	u8 *gpm_buf;
80	bool ready;
81	bool update_2g5g;
82	bool is_2g;
83	bool query_bt;
84	bool unhalt_bt_gpm; /* need send UNHALT */
85	bool halted_bt_gpm; /* HALT sent */
86	bool need_flush_btinfo;
87	bool bt_version_known;
88	bool wlan_channels_update;
89	u8 wlan_ver_major;
90	u8 wlan_ver_minor;
91	u8 bt_ver_major;
92	u8 bt_ver_minor;
93	u8 bt_state;
94	u8 stomp_ftp;
95	bool concur_tx;
96	u32 last_recovery;
97};
98
99struct ath9k_hw_aic {
100	bool aic_enabled;
101	u8 aic_cal_state;
102	u8 aic_caled_chan;
103	u32 aic_sram[ATH_AIC_MAX_BT_CHANNEL];
104	u32 aic_cal_start_time;
105};
106
107struct ath_btcoex_hw {
108	enum ath_btcoex_scheme scheme;
109	struct ath9k_hw_mci mci;
110	struct ath9k_hw_aic aic;
111	bool enabled;
112	u8 wlanactive_gpio;
113	u8 btactive_gpio;
114	u8 btpriority_gpio;
115	u32 bt_coex_mode; 	/* Register setting for AR_BT_COEX_MODE */
116	u32 bt_coex_weights; 	/* Register setting for AR_BT_COEX_WEIGHT */
117	u32 bt_coex_mode2; 	/* Register setting for AR_BT_COEX_MODE2 */
118	u32 bt_coex_mode3;	/* Register setting for AR_BT_COEX_MODE3 */
119	u32 bt_weight[AR9300_NUM_BT_WEIGHTS];
120	u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS];
121	u8 tx_prio[ATH_BTCOEX_STOMP_MAX];
122};
123
124void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
125void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
126void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
127void ath9k_hw_btcoex_deinit(struct ath_hw *ah);
128void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
129void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
130void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
131				u32 bt_weight,
132				u32 wlan_weight,
133				enum ath_stomp_type stomp_type);
134void ath9k_hw_btcoex_disable(struct ath_hw *ah);
135void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
136			      enum ath_stomp_type stomp_type);
137void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio);
138
139#endif
140