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

INCLUDED FROM

   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 */
  51 enum 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 
  60 enum 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 
  67 struct 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 
  99 struct 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 
 107 struct 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 
 124 void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
 125 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 126 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 127 void ath9k_hw_btcoex_deinit(struct ath_hw *ah);
 128 void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 129 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 130 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 131                                 u32 bt_weight,
 132                                 u32 wlan_weight,
 133                                 enum ath_stomp_type stomp_type);
 134 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 135 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 136                               enum ath_stomp_type stomp_type);
 137 void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio);
 138 
 139 #endif