linux/net/bluetooth/a2mp.h
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   1/*
   2   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
   3   Copyright (c) 2011,2012 Intel Corp.
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License version 2 and
   7   only version 2 as published by the Free Software Foundation.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13*/
  14
  15#ifndef __A2MP_H
  16#define __A2MP_H
  17
  18#include <net/bluetooth/l2cap.h>
  19
  20enum amp_mgr_state {
  21        READ_LOC_AMP_INFO,
  22        READ_LOC_AMP_ASSOC,
  23        READ_LOC_AMP_ASSOC_FINAL,
  24        WRITE_REMOTE_AMP_ASSOC,
  25};
  26
  27struct amp_mgr {
  28        struct list_head        list;
  29        struct l2cap_conn       *l2cap_conn;
  30        struct l2cap_chan       *a2mp_chan;
  31        struct l2cap_chan       *bredr_chan;
  32        struct kref             kref;
  33        __u8                    ident;
  34        __u8                    handle;
  35        unsigned long           state;
  36        unsigned long           flags;
  37
  38        struct list_head        amp_ctrls;
  39        struct mutex            amp_ctrls_lock;
  40};
  41
  42struct a2mp_cmd {
  43        __u8    code;
  44        __u8    ident;
  45        __le16  len;
  46        __u8    data[0];
  47} __packed;
  48
  49/* A2MP command codes */
  50#define A2MP_COMMAND_REJ         0x01
  51struct a2mp_cmd_rej {
  52        __le16  reason;
  53        __u8    data[0];
  54} __packed;
  55
  56#define A2MP_DISCOVER_REQ        0x02
  57struct a2mp_discov_req {
  58        __le16  mtu;
  59        __le16  ext_feat;
  60} __packed;
  61
  62struct a2mp_cl {
  63        __u8    id;
  64        __u8    type;
  65        __u8    status;
  66} __packed;
  67
  68#define A2MP_DISCOVER_RSP        0x03
  69struct a2mp_discov_rsp {
  70        __le16     mtu;
  71        __le16     ext_feat;
  72        struct a2mp_cl cl[0];
  73} __packed;
  74
  75#define A2MP_CHANGE_NOTIFY       0x04
  76#define A2MP_CHANGE_RSP          0x05
  77
  78#define A2MP_GETINFO_REQ         0x06
  79struct a2mp_info_req {
  80        __u8       id;
  81} __packed;
  82
  83#define A2MP_GETINFO_RSP         0x07
  84struct a2mp_info_rsp {
  85        __u8    id;
  86        __u8    status;
  87        __le32  total_bw;
  88        __le32  max_bw;
  89        __le32  min_latency;
  90        __le16  pal_cap;
  91        __le16  assoc_size;
  92} __packed;
  93
  94#define A2MP_GETAMPASSOC_REQ     0x08
  95struct a2mp_amp_assoc_req {
  96        __u8    id;
  97} __packed;
  98
  99#define A2MP_GETAMPASSOC_RSP     0x09
 100struct a2mp_amp_assoc_rsp {
 101        __u8    id;
 102        __u8    status;
 103        __u8    amp_assoc[0];
 104} __packed;
 105
 106#define A2MP_CREATEPHYSLINK_REQ  0x0A
 107#define A2MP_DISCONNPHYSLINK_REQ 0x0C
 108struct a2mp_physlink_req {
 109        __u8    local_id;
 110        __u8    remote_id;
 111        __u8    amp_assoc[0];
 112} __packed;
 113
 114#define A2MP_CREATEPHYSLINK_RSP  0x0B
 115#define A2MP_DISCONNPHYSLINK_RSP 0x0D
 116struct a2mp_physlink_rsp {
 117        __u8    local_id;
 118        __u8    remote_id;
 119        __u8    status;
 120} __packed;
 121
 122/* A2MP response status */
 123#define A2MP_STATUS_SUCCESS                     0x00
 124#define A2MP_STATUS_INVALID_CTRL_ID             0x01
 125#define A2MP_STATUS_UNABLE_START_LINK_CREATION  0x02
 126#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS     0x02
 127#define A2MP_STATUS_COLLISION_OCCURED           0x03
 128#define A2MP_STATUS_DISCONN_REQ_RECVD           0x04
 129#define A2MP_STATUS_PHYS_LINK_EXISTS            0x05
 130#define A2MP_STATUS_SECURITY_VIOLATION          0x06
 131
 132struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
 133int amp_mgr_put(struct amp_mgr *mgr);
 134struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
 135                                       struct sk_buff *skb);
 136void a2mp_discover_amp(struct l2cap_chan *chan);
 137void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
 138void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
 139void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
 140void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
 141
 142#endif /* __A2MP_H */
 143