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
  48#define ATH_AIC_MAX_BT_CHANNEL  79
  49
  50/* Defines the BT AR_BT_COEX_WGHT used */
  51enum 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
  60enum 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
  67struct 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
  99struct 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
 107struct 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
 124void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah);
 125void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah);
 126void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah);
 127void ath9k_hw_btcoex_deinit(struct ath_hw *ah);
 128void ath9k_hw_btcoex_init_mci(struct ath_hw *ah);
 129void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum);
 130void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
 131                                u32 bt_weight,
 132                                u32 wlan_weight,
 133                                enum ath_stomp_type stomp_type);
 134void ath9k_hw_btcoex_disable(struct ath_hw *ah);
 135void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah,
 136                              enum ath_stomp_type stomp_type);
 137void ath9k_hw_btcoex_set_concur_txprio(struct ath_hw *ah, u8 *stomp_txprio);
 138
 139#endif
 140