sys/netgraph7/bluetooth/hci/ng_hci_var.h

   1 /*
   2  * ng_hci_var.h
   3  */
   4
   5 /*-
   6  * Copyright (c) 2001 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $Id: ng_hci_var.h,v 1.3 2003/04/26 22:35:21 max Exp $
  31  * $FreeBSD: src/sys/netgraph/bluetooth/hci/ng_hci_var.h,v 1.6 2005/01/07 01:45:43 imp Exp $
  32  * $DragonFly: src/sys/netgraph7/bluetooth/hci/ng_hci_var.h,v 1.2 2008/06/26 23:05:40 dillon Exp $
  33  */
  34
  35 #ifndef _NETGRAPH_HCI_VAR_H_
  36 #define _NETGRAPH_HCI_VAR_H_
  37
  38 /* MALLOC decalation */
  39 #ifdef NG_SEPARATE_MALLOC
  40 MALLOC_DECLARE(M_NETGRAPH_HCI);
  41 #else
  42 #define M_NETGRAPH_HCI M_NETGRAPH
  43 #endif /* NG_SEPARATE_MALLOC */
  44
  45 /* Debug */
  46 #define NG_HCI_ALERT    if (unit->debug >= NG_HCI_ALERT_LEVEL) printf
  47 #define NG_HCI_ERR      if (unit->debug >= NG_HCI_ERR_LEVEL)   printf
  48 #define NG_HCI_WARN     if (unit->debug >= NG_HCI_WARN_LEVEL)  printf
  49 #define NG_HCI_INFO     if (unit->debug >= NG_HCI_INFO_LEVEL)  printf
  50
  51 /* Wrapper around m_pullup */
  52 #define NG_HCI_M_PULLUP(m, s)                           \
  53         do {                                            \
  54                 if ((m)->m_len < (s))                   \
  55                         (m) = m_pullup((m), (s));       \
  56                 if ((m) == NULL)                        \
  57                         NG_HCI_ALERT("%s: %s - m_pullup(%zd) failed\n", \
  58                                 __func__, NG_NODE_NAME(unit->node), (s)); \
  59         } while (0)
  60
  61 /*
  62  * Unit hardware buffer descriptor
  63  */
  64
  65 typedef struct ng_hci_unit_buff {
  66         u_int8_t                        cmd_free; /* space available (cmds) */
  67
  68         u_int8_t                        sco_size; /* max. size of one packet */
  69         u_int16_t                       sco_pkts; /* size of buffer (packets) */
  70         u_int16_t                       sco_free; /* space available (packets)*/
  71
  72         u_int16_t                       acl_size; /* max. size of one packet */
  73         u_int16_t                       acl_pkts; /* size of buffer (packets) */
  74         u_int16_t                       acl_free; /* space available (packets)*/
  75 } ng_hci_unit_buff_t;
  76
  77 /*
  78  * These macro's must be used everywhere in the code. So if extra locking
  79  * is required later, it can be added without much troubles.
  80  */
  81
  82 #define NG_HCI_BUFF_CMD_SET(b, v)       (b).cmd_free = (v)
  83 #define NG_HCI_BUFF_CMD_GET(b, v)       (v) = (b).cmd_free
  84 #define NG_HCI_BUFF_CMD_USE(b, v)       (b).cmd_free -= (v)
  85
  86 #define NG_HCI_BUFF_ACL_USE(b, v)       (b).acl_free -= (v)
  87 #define NG_HCI_BUFF_ACL_FREE(b, v)                      \
  88         do {                                            \
  89                 (b).acl_free += (v);                    \
  90                 if ((b).acl_free > (b).acl_pkts)        \
  91                         (b).acl_free = (b).acl_pkts;    \
  92         } while (0)
  93 #define NG_HCI_BUFF_ACL_AVAIL(b, v)     (v) = (b).acl_free
  94 #define NG_HCI_BUFF_ACL_TOTAL(b, v)     (v) = (b).acl_pkts
  95 #define NG_HCI_BUFF_ACL_SIZE(b, v)      (v) = (b).acl_size
  96 #define NG_HCI_BUFF_ACL_SET(b, n, s, f)                 \
  97         do {                                            \
  98                 (b).acl_free = (f);                     \
  99                 (b).acl_size = (s);                     \
 100                 (b).acl_pkts = (n);                     \
 101         } while (0)
 102
 103 #define NG_HCI_BUFF_SCO_USE(b, v)       (b).sco_free -= (v)
 104 #define NG_HCI_BUFF_SCO_FREE(b, v)                      \
 105         do {                                            \
 106                 (b).sco_free += (v);                    \
 107                 if ((b).sco_free > (b).sco_pkts)        \
 108                         (b).sco_free = (b).sco_pkts;    \
 109         } while (0)
 110 #define NG_HCI_BUFF_SCO_AVAIL(b, v)     (v) = (b).sco_free
 111 #define NG_HCI_BUFF_SCO_TOTAL(b, v)     (v) = (b).sco_pkts
 112 #define NG_HCI_BUFF_SCO_SIZE(b, v)      (v) = (b).sco_size
 113 #define NG_HCI_BUFF_SCO_SET(b, n, s, f)                 \
 114         do {                                            \
 115                 (b).sco_free = (f);                     \
 116                 (b).sco_size = (s);                     \
 117                 (b).sco_pkts = (n);                     \
 118         } while (0)
 119
 120 /*
 121  * Unit (Node private)
 122  */
 123
 124 struct ng_hci_unit_con;
 125 struct ng_hci_neighbor;
 126
 127 typedef struct ng_hci_unit {
 128         node_p                          node;           /* node ptr */
 129
 130         ng_hci_node_debug_ep            debug;          /* debug level */
 131         ng_hci_node_state_ep            state;          /* unit state */
 132
 133         bdaddr_t                        bdaddr;         /* unit address */
 134         u_int8_t                        features[NG_HCI_FEATURES_SIZE];
 135                                                         /* LMP features */
 136
 137         ng_hci_node_link_policy_mask_ep link_policy_mask; /* link policy mask */
 138         ng_hci_node_packet_mask_ep      packet_mask;    /* packet mask */
 139         ng_hci_node_role_switch_ep      role_switch;    /* role switch */
 140
 141         ng_hci_node_stat_ep             stat;           /* statistic */
 142 #define NG_HCI_STAT_CMD_SENT(s)         (s).cmd_sent ++
 143 #define NG_HCI_STAT_EVNT_RECV(s)        (s).evnt_recv ++
 144 #define NG_HCI_STAT_ACL_SENT(s, n)      (s).acl_sent += (n)
 145 #define NG_HCI_STAT_ACL_RECV(s)         (s).acl_recv ++
 146 #define NG_HCI_STAT_SCO_SENT(s, n)      (s).sco_sent += (n)
 147 #define NG_HCI_STAT_SCO_RECV(s)         (s).sco_recv ++
 148 #define NG_HCI_STAT_BYTES_SENT(s, b)    (s).bytes_sent += (b)
 149 #define NG_HCI_STAT_BYTES_RECV(s, b)    (s).bytes_recv += (b)
 150 #define NG_HCI_STAT_RESET(s)            bzero(&(s), sizeof((s)))
 151
 152         ng_hci_unit_buff_t              buffer;         /* buffer info */
 153
 154         struct callout                  cmd_timo;       /* command timeout */
 155         ng_bt_mbufq_t                   cmdq;           /* command queue */
 156 #define NG_HCI_CMD_QUEUE_LEN            12              /* max. size of cmd q */
 157
 158         hook_p                          drv;            /* driver hook */
 159         hook_p                          acl;            /* upstream hook */
 160         hook_p                          sco;            /* upstream hook */
 161         hook_p                          raw;            /* upstream hook */
 162
 163         LIST_HEAD(, ng_hci_unit_con)    con_list;       /* connections */
 164         LIST_HEAD(, ng_hci_neighbor)    neighbors;      /* unit neighbors */
 165 } ng_hci_unit_t;
 166 typedef ng_hci_unit_t *                 ng_hci_unit_p;
 167
 168 /*
 169  * Unit connection descriptor
 170  */
 171
 172 typedef struct ng_hci_unit_con {
 173         ng_hci_unit_p                   unit;            /* pointer back */
 174
 175         u_int16_t                       state;           /* con. state */
 176         u_int16_t                       flags;           /* con. flags */
 177 #define NG_HCI_CON_TIMEOUT_PENDING              (1 << 0)
 178 #define NG_HCI_CON_NOTIFY_ACL                   (1 << 1)
 179 #define NG_HCI_CON_NOTIFY_SCO                   (1 << 2)
 180
 181         bdaddr_t                        bdaddr;          /* remote address */
 182         u_int16_t                       con_handle;      /* con. handle */
 183
 184         u_int8_t                        link_type;       /* ACL or SCO */
 185         u_int8_t                        encryption_mode; /* none, p2p, ... */
 186         u_int8_t                        mode;            /* ACTIVE, HOLD ... */
 187         u_int8_t                        role;            /* MASTER/SLAVE */
 188
 189         struct callout                  con_timo;        /* con. timeout */
 190
 191         int                             pending;         /* # of data pkts */
 192         ng_bt_itemq_t                   conq;            /* con. queue */
 193
 194         LIST_ENTRY(ng_hci_unit_con)     next;            /* next */
 195 } ng_hci_unit_con_t;
 196 typedef ng_hci_unit_con_t *             ng_hci_unit_con_p;
 197
 198 /*
 199  * Unit's neighbor descriptor.
 200  * Neighbor is a remote unit that responded to our inquiry.
 201  */
 202
 203 typedef struct ng_hci_neighbor {
 204         struct timeval                  updated;        /* entry was updated */
 205
 206         bdaddr_t                        bdaddr;         /* address */
 207         u_int8_t                        features[NG_HCI_FEATURES_SIZE];
 208                                                         /* LMP features */
 209
 210         u_int8_t                        page_scan_rep_mode; /* PS rep. mode */
 211         u_int8_t                        page_scan_mode; /* page scan mode */
 212         u_int16_t                       clock_offset;   /* clock offset */
 213
 214         LIST_ENTRY(ng_hci_neighbor)     next;
 215 } ng_hci_neighbor_t;
 216 typedef ng_hci_neighbor_t *             ng_hci_neighbor_p;
 217
 218 #endif /* ndef _NETGRAPH_HCI_VAR_H_ */
 219