/*
 * Copyright (c) 2010-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef MCI_H
#define MCI_H

#include "ar9003_mci.h"

#define ATH_MCI_SCHED_BUF_SIZE          (16 * 16) /* 16 entries, 4 dword each */
#define ATH_MCI_GPM_MAX_ENTRY           16
#define ATH_MCI_GPM_BUF_SIZE            (ATH_MCI_GPM_MAX_ENTRY * 16)
#define ATH_MCI_DEF_BT_PERIOD           40
#define ATH_MCI_BDR_DUTY_CYCLE          20
#define ATH_MCI_MAX_DUTY_CYCLE          90

#define ATH_MCI_DEF_AGGR_LIMIT          6 /* in 0.24 ms */
#define ATH_MCI_MAX_ACL_PROFILE         7
#define ATH_MCI_MAX_SCO_PROFILE         1
#define ATH_MCI_MAX_PROFILE             (ATH_MCI_MAX_ACL_PROFILE +\
                                         ATH_MCI_MAX_SCO_PROFILE)

#define ATH_MCI_INQUIRY_PRIO         62
#define ATH_MCI_HI_PRIO              60
#define ATH_MCI_NUM_BT_CHANNELS      79
#define ATH_MCI_CONCUR_TX_SWITCH      5

#define MCI_GPM_SET_CHANNEL_BIT(_p_gpm, _bt_chan)                         \
        do {                                                              \
                if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {                 \
                        *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
                                (_bt_chan / 8)) |= (1 << (_bt_chan & 7)); \
                }                                                         \
        } while (0)

#define MCI_GPM_CLR_CHANNEL_BIT(_p_gpm, _bt_chan)                         \
        do {                                                              \
                if (_bt_chan < ATH_MCI_NUM_BT_CHANNELS) {                 \
                        *(((u8 *)(_p_gpm)) + MCI_GPM_COEX_B_CHANNEL_MAP + \
                                (_bt_chan / 8)) &= ~(1 << (_bt_chan & 7));\
                }                                                         \
        } while (0)

#define INC_PROF(_mci, _info) do {               \
                switch (_info->type) {           \
                case MCI_GPM_COEX_PROFILE_RFCOMM:\
                        _mci->num_other_acl++;   \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_A2DP:  \
                        _mci->num_a2dp++;        \
                        if (!_info->edr)         \
                                _mci->num_bdr++; \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_HID:   \
                        _mci->num_hid++;         \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_BNEP:  \
                        _mci->num_pan++;         \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_VOICE: \
                case MCI_GPM_COEX_PROFILE_A2DPVO:\
                        _mci->num_sco++;         \
                        break;                   \
                default:                         \
                        break;                   \
                }                                \
        } while (0)

#define DEC_PROF(_mci, _info) do {               \
                switch (_info->type) {           \
                case MCI_GPM_COEX_PROFILE_RFCOMM:\
                        _mci->num_other_acl--;   \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_A2DP:  \
                        _mci->num_a2dp--;        \
                        if (!_info->edr)         \
                                _mci->num_bdr--; \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_HID:   \
                        _mci->num_hid--;         \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_BNEP:  \
                        _mci->num_pan--;         \
                        break;                   \
                case MCI_GPM_COEX_PROFILE_VOICE: \
                case MCI_GPM_COEX_PROFILE_A2DPVO:\
                        _mci->num_sco--;         \
                        break;                   \
                default:                         \
                        break;                   \
                }                                \
        } while (0)

#define NUM_PROF(_mci)  (_mci->num_other_acl + _mci->num_a2dp + \
                         _mci->num_hid + _mci->num_pan + _mci->num_sco)

struct ath_mci_profile_info {
        u8 type;
        u8 conn_handle;
        bool start;
        bool master;
        bool edr;
        u8 voice_type;
        u16 T;          /* Voice: Tvoice, HID: Tsniff,        in slots */
        u8 W;           /* Voice: Wvoice, HID: Sniff timeout, in slots */
        u8 A;           /*                HID: Sniff attempt, in slots */
        struct list_head list;
};

struct ath_mci_profile_status {
        bool is_critical;
        bool is_link;
        u8 conn_handle;
};

struct ath_mci_profile {
        struct list_head info;
        DECLARE_BITMAP(status, ATH_MCI_MAX_PROFILE);
        u16 aggr_limit;
        u8 num_mgmt;
        u8 num_sco;
        u8 num_a2dp;
        u8 num_hid;
        u8 num_pan;
        u8 num_other_acl;
        u8 num_bdr;
        u8 voice_priority;
};

struct ath_mci_buf {
        void *bf_addr;          /* virtual addr of desc */
        dma_addr_t bf_paddr;    /* physical addr of buffer */
        u32 bf_len;             /* len of data */
};

struct ath_mci_coex {
        struct ath_mci_buf sched_buf;
        struct ath_mci_buf gpm_buf;
};

void ath_mci_flush_profile(struct ath_mci_profile *mci);
int ath_mci_setup(struct ath_softc *sc);
void ath_mci_cleanup(struct ath_softc *sc);
void ath_mci_intr(struct ath_softc *sc);
void ath9k_mci_update_rssi(struct ath_softc *sc);

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
void ath_mci_enable(struct ath_softc *sc);
void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all);
void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
                           bool concur_tx);
#else
static inline void ath_mci_enable(struct ath_softc *sc)
{
}
static inline void ath9k_mci_update_wlan_channels(struct ath_softc *sc,
                                                  bool allow_all)
{
}
static inline void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
                                         bool concur_tx)
{
}
#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */

#endif /* MCI_H*/