LXR linux/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 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/* Defines the BT AR_BT_COEX_WGHT used */
  48enum ath_stomp_type {
  49        ATH_BTCOEX_STOMP_ALL,
  50        ATH_BTCOEX_STOMP_LOW,
  51        ATH_BTCOEX_STOMP_NONE,
  52        ATH_BTCOEX_STOMP_LOW_FTP,
  53        ATH_BTCOEX_STOMP_AUDIO,
  54        ATH_BTCOEX_STOMP_MAX
  55};
  56
  57enum ath_btcoex_scheme {
  58        ATH_BTCOEX_CFG_NONE,
  59        ATH_BTCOEX_CFG_2WIRE,
  60        ATH_BTCOEX_CFG_3WIRE,
  61};
  62
  63struct ath9k_hw_mci {
  64        u32 raw_intr;
  65        u32 rx_msg_intr;
  66        u32 cont_status;
  67        u32 gpm_addr;
  68        u32 gpm_len;
  69        u32 gpm_idx;
  70        u32 sched_addr;
  71        u32 wlan_channels[4];
  72        u32 wlan_cal_seq;
  73        u32 wlan_cal_done;
  74        u32 config;
  75        u8 *gpm_buf;
  76        bool ready;
  77        bool update_2g5g;
  78        bool is_2g;
  79        bool query_bt;
  80        bool unhalt_bt_gpm; /* need send UNHALT */
  81        bool halted_bt_gpm; /* HALT sent */
  82        bool need_flush_btinfo;
  83        bool bt_version_known;
  84        bool wlan_channels_update;
  85        u8 wlan_ver_major;
  86        u8 wlan_ver_minor;
  87        u8 bt_ver_major;
  88        u8 bt_ver_minor;
  89        u8 bt_state;
  90        u8 stomp_ftp;
  91        bool concur_tx;
  92        u32 last_recovery;
  93};
  94
  95struct ath_btcoex_hw {
  96        enum ath_btcoex_scheme scheme;
  97        struct ath9k_hw_mci mci;
  98        bool enabled;
  99        u8 wlanactive_gpio;
 100        u8 btactive_gpio;
 101        u8 btpriority_gpio;
 102        u32 bt_coex_mode;       /* Register setting for AR_BT_COEX_MODE */
 103        u32 bt_coex_weights;    /* Register setting for AR_BT_COEX_WEIGHT */
 104        u32 bt_coex_mode2;      /* Register setting for AR_BT_COEX_MODE2 */
 105        u32 bt_weight[AR9300_NUM_BT_WEIGHTS];
 106        u32 wlan_weight[AR9300_NUM_WLAN_WEIGHTS];
 107        u8 tx_prio[ATH_BTCOEX_STOMP_MAX];
 108};
 109
 110void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
 111void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 112void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 113void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 114void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 115void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 116                                u32 bt_weight,
 117                                u32 wlan_weight,
 118                                enum ath_stomp_type stomp_type);
 119void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 120void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 121                              enum ath_stomp_type stomp_type);
 122void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio);
 123
 124#endif
 125