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 /* Defines the BT AR_BT_COEX_WGHT used */
  40 enum ath_stomp_type {
  41         ATH_BTCOEX_NO_STOMP,
  42         ATH_BTCOEX_STOMP_ALL,
  43         ATH_BTCOEX_STOMP_LOW,
  44         ATH_BTCOEX_STOMP_NONE
  45 };
  46
  47 enum ath_btcoex_scheme {
  48         ATH_BTCOEX_CFG_NONE,
  49         ATH_BTCOEX_CFG_2WIRE,
  50         ATH_BTCOEX_CFG_3WIRE,
  51 };
  52
  53 struct ath_btcoex_hw {
  54         enum ath_btcoex_scheme scheme;
  55         bool enabled;
  56         u8 wlanactive_gpio;
  57         u8 btactive_gpio;
  58         u8 btpriority_gpio;
  59         u32 bt_coex_mode;       /* Register setting for AR_BT_COEX_MODE */
  60         u32 bt_coex_weights;    /* Register setting for AR_BT_COEX_WEIGHT */
  61         u32 bt_coex_mode2;      /* Register setting for AR_BT_COEX_MODE2 */
  62 };
  63
  64 void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
  65 void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
  66 void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
  67 void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
  68                                 u32 bt_weight,
  69                                 u32 wlan_weight);
  70 void ath9k_hw_btcoex_enable(struct ath_hw *ah);
  71 void ath9k_hw_btcoex_disable(struct ath_hw *ah);
  72 void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
  73                               enum ath_stomp_type stomp_type);
  74
  75 #endif