drivers/net/wireless/ath/ath9k/btcoex.h

   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         bool concur_tx;
  88 };
  89
  90 struct ath_btcoex_hw {
  91         enum ath_btcoex_scheme scheme;
  92         struct ath9k_hw_mci mci;
  93         bool enabled;
  94         u8 wlanactive_gpio;
  95         u8 btactive_gpio;
  96         u8 btpriority_gpio;
  97         u32 bt_coex_mode;       /* Register setting for AR_BT_COEX_MODE */
  98         u32 bt_coex_weights;    /* Register setting for AR_BT_COEX_WEIGHT */
  99         u32 bt_coex_mode2;      /* Register setting for AR_BT_COEX_MODE2 */
 100         u32 bt_weight[AR9300_NUM_BT_WEIGHTS];
 101         u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS];
 102         u8 tx_prio[ATH_BTCOEX_STOMP_MAX];
 103 };
 104
 105 void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
 106 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 107 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 108 void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 109 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 110 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 111                                 u32 bt_weight,
 112                                 u32 wlan_weight,
 113                                 enum ath_stomp_type stomp_type);
 114 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 115 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 116                               enum ath_stomp_type stomp_type);
 117 void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio);
 118
 119 #endif