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

   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
  20 #include "hw.h"
  21
  22 #define ATH_WLANACTIVE_GPIO     5
  23 #define ATH_BTACTIVE_GPIO       6
  24 #define ATH_BTPRIORITY_GPIO     7
  25
  26 #define ATH_BTCOEX_DEF_BT_PERIOD  45
  27 #define ATH_BTCOEX_DEF_DUTY_CYCLE 55
  28 #define ATH_BTCOEX_BTSCAN_DUTY_CYCLE 90
  29 #define ATH_BTCOEX_BMISS_THRESH   50
  30
  31 #define ATH_BT_PRIORITY_TIME_THRESHOLD 1000 /* ms */
  32 #define ATH_BT_CNT_THRESHOLD           3
  33 #define ATH_BT_CNT_SCAN_THRESHOLD      15
  34
  35 enum ath_btcoex_scheme {
  36         ATH_BTCOEX_CFG_NONE,
  37         ATH_BTCOEX_CFG_2WIRE,
  38         ATH_BTCOEX_CFG_3WIRE,
  39 };
  40
  41 struct ath_btcoex_hw {
  42         enum ath_btcoex_scheme scheme;
  43         bool enabled;
  44         u8 wlanactive_gpio;
  45         u8 btactive_gpio;
  46         u8 btpriority_gpio;
  47         u32 bt_coex_mode;       /* Register setting for AR_BT_COEX_MODE */
  48         u32 bt_coex_weights;    /* Register setting for AR_BT_COEX_WEIGHT */
  49         u32 bt_coex_mode2;      /* Register setting for AR_BT_COEX_MODE2 */
  50 };
  51
  52 bool ath9k_hw_btcoex_supported(struct ath_hw *ah);
  53 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
  54 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
  55 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
  56 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
  57                                 u32 bt_weight,
  58                                 u32 wlan_weight);
  59 void ath9k_hw_btcoex_enable(struct ath_hw *ah);
  60 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
  61
  62 #endif