kernel/drivers/net/wireless/ath/ath9k/mci.h

   1 /*
   2  * Copyright (c) 2010-2011 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 MCI_H
  18 #define MCI_H
  19
  20 #include "ar9003_mci.h"
  21
  22 #define ATH_MCI_SCHED_BUF_SIZE          (16 * 16) /* 16 entries, 4 dword each */
  23 #define ATH_MCI_GPM_MAX_ENTRY           16
  24 #define ATH_MCI_GPM_BUF_SIZE            (ATH_MCI_GPM_MAX_ENTRY * 16)
  25 #define ATH_MCI_DEF_BT_PERIOD           40
  26 #define ATH_MCI_BDR_DUTY_CYCLE          20
  27 #define ATH_MCI_MAX_DUTY_CYCLE          90
  28
  29 #define ATH_MCI_DEF_AGGR_LIMIT          6 /* in 0.24 ms */
  30 #define ATH_MCI_MAX_ACL_PROFILE         7
  31 #define ATH_MCI_MAX_SCO_PROFILE         1
  32 #define ATH_MCI_MAX_PROFILE             (ATH_MCI_MAX_ACL_PROFILE +\
  33                                          ATH_MCI_MAX_SCO_PROFILE)
  34
  35 #define ATH_MCI_INQUIRY_PRIO         62
  36 #define ATH_MCI_HI_PRIO              60
  37 #define ATH_MCI_NUM_BT_CHANNELS      79
  38 #define ATH_MCI_CONCUR_TX_SWITCH      5
  39
  40 #define MCI_GPM_SET_CHANNEL_BIT(_p_gpm, _bt_chan)                         \
  41         do {                                                              \
  42                 if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {                 \
  43                         *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
  44                                 (_bt_chan / 8)) |= (1 << (_bt_chan & 7)); \
  45                 }                                                         \
  46         } while (0)
  47
  48 #define MCI_GPM_CLR_CHANNEL_BIT(_p_gpm, _bt_chan)                         \
  49         do {                                                              \
  50                 if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {                 \
  51                         *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
  52                                 (_bt_chan / 8)) &= ~(1 << (_bt_chan & 7));\
  53                 }                                                         \
  54         } while (0)
  55
  56 #define INC_PROF(_mci, _info) do {               \
  57                 switch (_info->type) {           \
  58                 case MCI_GPM_COEX_PROFILE_RFCOMM:\
  59                         _mci->num_other_acl++;   \
  60                         break;                   \
  61                 case MCI_GPM_COEX_PROFILE_A2DP:  \
  62                         _mci->num_a2dp++;        \
  63                         if (!_info->edr)         \
  64                                 _mci->num_bdr++; \
  65                         break;                   \
  66                 case MCI_GPM_COEX_PROFILE_HID:   \
  67                         _mci->num_hid++;         \
  68                         break;                   \
  69                 case MCI_GPM_COEX_PROFILE_BNEP:  \
  70                         _mci->num_pan++;         \
  71                         break;                   \
  72                 case MCI_GPM_COEX_PROFILE_VOICE: \
  73                 case MCI_GPM_COEX_PROFILE_A2DPVO:\
  74                         _mci->num_sco++;         \
  75                         break;                   \
  76                 default:                         \
  77                         break;                   \
  78                 }                                \
  79         } while (0)
  80
  81 #define DEC_PROF(_mci, _info) do {               \
  82                 switch (_info->type) {           \
  83                 case MCI_GPM_COEX_PROFILE_RFCOMM:\
  84                         _mci->num_other_acl--;   \
  85                         break;                   \
  86                 case MCI_GPM_COEX_PROFILE_A2DP:  \
  87                         _mci->num_a2dp--;        \
  88                         if (!_info->edr)         \
  89                                 _mci->num_bdr--; \
  90                         break;                   \
  91                 case MCI_GPM_COEX_PROFILE_HID:   \
  92                         _mci->num_hid--;         \
  93                         break;                   \
  94                 case MCI_GPM_COEX_PROFILE_BNEP:  \
  95                         _mci->num_pan--;         \
  96                         break;                   \
  97                 case MCI_GPM_COEX_PROFILE_VOICE: \
  98                 case MCI_GPM_COEX_PROFILE_A2DPVO:\
  99                         _mci->num_sco--;         \
 100                         break;                   \
 101                 default:                         \
 102                         break;                   \
 103                 }                                \
 104         } while (0)
 105
 106 #define NUM_PROF(_mci)  (_mci->num_other_acl + _mci->num_a2dp + \
 107                          _mci->num_hid + _mci->num_pan + _mci->num_sco)
 108
 109 struct ath_mci_profile_info {
 110         u8 type;
 111         u8 conn_handle;
 112         bool start;
 113         bool master;
 114         bool edr;
 115         u8 voice_type;
 116         u16 T;          /* Voice: Tvoice, HID: Tsniff,        in slots */
 117         u8 W;           /* Voice: Wvoice, HID: Sniff timeout, in slots */
 118         u8 A;           /*                HID: Sniff attempt, in slots */
 119         struct list_head list;
 120 };
 121
 122 struct ath_mci_profile_status {
 123         bool is_critical;
 124         bool is_link;
 125         u8 conn_handle;
 126 };
 127
 128 struct ath_mci_profile {
 129         struct list_head info;
 130         DECLARE_BITMAP(status, ATH_MCI_MAX_PROFILE);
 131         u16 aggr_limit;
 132         u8 num_mgmt;
 133         u8 num_sco;
 134         u8 num_a2dp;
 135         u8 num_hid;
 136         u8 num_pan;
 137         u8 num_other_acl;
 138         u8 num_bdr;
 139         u8 voice_priority;
 140 };
 141
 142 struct ath_mci_buf {
 143         void *bf_addr;          /* virtual addr of desc */
 144         dma_addr_t bf_paddr;    /* physical addr of buffer */
 145         u32 bf_len;             /* len of data */
 146 };
 147
 148 struct ath_mci_coex {
 149         struct ath_mci_buf sched_buf;
 150         struct ath_mci_buf gpm_buf;
 151 };
 152
 153 void ath_mci_flush_profile(struct ath_mci_profile *mci);
 154 int ath_mci_setup(struct ath_softc *sc);
 155 void ath_mci_cleanup(struct ath_softc *sc);
 156 void ath_mci_intr(struct ath_softc *sc);
 157 void ath9k_mci_update_rssi(struct ath_softc *sc);
 158
 159 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 160 void ath_mci_enable(struct ath_softc *sc);
 161 void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all);
 162 void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
 163                            bool concur_tx);
 164 #else
 165 static inline void ath_mci_enable(struct ath_softc *sc)
 166 {
 167 }
 168 static inline void ath9k_mci_update_wlan_channels(struct ath_softc *sc,
 169                                                   bool allow_all)
 170 {
 171 }
 172 static inline void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
 173                                          bool concur_tx)
 174 {
 175 }
 176 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
 177
 178 #endif /* MCI_H*/