a2mp.h

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/*
   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
   Copyright (c) 2011,2012 Intel Corp.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 and
   only version 2 as published by the Free Software Foundation.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
*/

#ifndef __A2MP_H
#define __A2MP_H

#include <net/bluetooth/l2cap.h>

#define A2MP_FEAT_EXT   0x8000

struct amp_mgr {
    struct l2cap_conn   *l2cap_conn;
    struct l2cap_chan   *a2mp_chan;
    struct kref     kref;
    __u8            ident;
    __u8            handle;
    unsigned long       flags;
};

struct a2mp_cmd {
    __u8    code;
    __u8    ident;
    __le16  len;
    __u8    data[0];
} __packed;

/* A2MP command codes */
#define A2MP_COMMAND_REJ         0x01
struct a2mp_cmd_rej {
    __le16  reason;
    __u8    data[0];
} __packed;

#define A2MP_DISCOVER_REQ        0x02
struct a2mp_discov_req {
    __le16  mtu;
    __le16  ext_feat;
} __packed;

struct a2mp_cl {
    __u8    id;
    __u8    type;
    __u8    status;
} __packed;

#define A2MP_DISCOVER_RSP        0x03
struct a2mp_discov_rsp {
    __le16     mtu;
    __le16     ext_feat;
    struct a2mp_cl cl[0];
} __packed;

#define A2MP_CHANGE_NOTIFY       0x04
#define A2MP_CHANGE_RSP          0x05

#define A2MP_GETINFO_REQ         0x06
struct a2mp_info_req {
    __u8       id;
} __packed;

#define A2MP_GETINFO_RSP         0x07
struct a2mp_info_rsp {
    __u8    id;
    __u8    status;
    __le32  total_bw;
    __le32  max_bw;
    __le32  min_latency;
    __le16  pal_cap;
    __le16  assoc_size;
} __packed;

#define A2MP_GETAMPASSOC_REQ     0x08
struct a2mp_amp_assoc_req {
    __u8    id;
} __packed;

#define A2MP_GETAMPASSOC_RSP     0x09
struct a2mp_amp_assoc_rsp {
    __u8    id;
    __u8    status;
    __u8    amp_assoc[0];
} __packed;

#define A2MP_CREATEPHYSLINK_REQ  0x0A
#define A2MP_DISCONNPHYSLINK_REQ 0x0C
struct a2mp_physlink_req {
    __u8    local_id;
    __u8    remote_id;
    __u8    amp_assoc[0];
} __packed;

#define A2MP_CREATEPHYSLINK_RSP  0x0B
#define A2MP_DISCONNPHYSLINK_RSP 0x0D
struct a2mp_physlink_rsp {
    __u8    local_id;
    __u8    remote_id;
    __u8    status;
} __packed;

/* A2MP response status */
#define A2MP_STATUS_SUCCESS         0x00
#define A2MP_STATUS_INVALID_CTRL_ID     0x01
#define A2MP_STATUS_UNABLE_START_LINK_CREATION  0x02
#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02
#define A2MP_STATUS_COLLISION_OCCURED       0x03
#define A2MP_STATUS_DISCONN_REQ_RECVD       0x04
#define A2MP_STATUS_PHYS_LINK_EXISTS        0x05
#define A2MP_STATUS_SECURITY_VIOLATION      0x06

void amp_mgr_get(struct amp_mgr *mgr);
int amp_mgr_put(struct amp_mgr *mgr);
struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
                       struct sk_buff *skb);

#endif /* __A2MP_H */