mci.h

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/*
 * 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 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: \
            _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: \
            _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;
};

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);

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
void ath_mci_enable(struct ath_softc *sc);
#else
static inline void ath_mci_enable(struct ath_softc *sc)
{
}
#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */

#endif /* MCI_H*/