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