hw/bt.h

   1 /*
   2  * QEMU Bluetooth HCI helpers.
   3  *
   4  * Copyright (C) 2007 OpenMoko, Inc.
   5  * Written by Andrzej Zaborowski <andrew@openedhand.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  20  * MA  02110-1301  USA
  21  */
  22
  23 /* BD Address */
  24 typedef struct {
  25     uint8_t b[6];
  26 } __attribute__((packed)) bdaddr_t;
  27
  28 #define BDADDR_ANY      (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
  29 #define BDADDR_ALL      (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
  30 #define BDADDR_LOCAL    (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
  31
  32 /* Copy, swap, convert BD Address */
  33 static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
  34 {
  35     return memcmp(ba1, ba2, sizeof(bdaddr_t));
  36 }
  37 static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
  38 {
  39     memcpy(dst, src, sizeof(bdaddr_t));
  40 }
  41
  42 #define BAINIT(orig)    { .b = {                \
  43     (orig)->b[0], (orig)->b[1], (orig)->b[2],   \
  44     (orig)->b[3], (orig)->b[4], (orig)->b[5],   \
  45 }, }
  46
  47 /* The twisted structures of a bluetooth environment */
  48 struct bt_device_s;
  49 struct bt_scatternet_s;
  50 struct bt_piconet_s;
  51 struct bt_link_s;
  52
  53 struct bt_scatternet_s {
  54     struct bt_device_s *slave;
  55 };
  56
  57 struct bt_link_s {
  58     struct bt_device_s *slave, *host;
  59     uint16_t handle;            /* Master (host) side handle */
  60     uint16_t acl_interval;
  61     enum {
  62         acl_active,
  63         acl_hold,
  64         acl_sniff,
  65         acl_parked,
  66     } acl_mode;
  67 };
  68
  69 struct bt_device_s {
  70     int lt_addr;
  71     bdaddr_t bd_addr;
  72     int mtu;
  73     int setup;
  74     struct bt_scatternet_s *net;
  75
  76     uint8_t key[16];
  77     int key_present;
  78     uint8_t class[3];
  79
  80     uint8_t reject_reason;
  81
  82     uint64_t lmp_caps;
  83     const char *lmp_name;
  84     void (*lmp_connection_request)(struct bt_link_s *link);
  85     void (*lmp_connection_complete)(struct bt_link_s *link);
  86     void (*lmp_disconnect_master)(struct bt_link_s *link);
  87     void (*lmp_disconnect_slave)(struct bt_link_s *link);
  88     void (*lmp_acl_data)(struct bt_link_s *link, const uint8_t *data,
  89                     int start, int len);
  90     void (*lmp_acl_resp)(struct bt_link_s *link, const uint8_t *data,
  91                     int start, int len);
  92     void (*lmp_mode_change)(struct bt_link_s *link);
  93
  94     void (*handle_destroy)(struct bt_device_s *device);
  95     struct bt_device_s *next;   /* Next in the piconet/scatternet */
  96
  97     int inquiry_scan;
  98     int page_scan;
  99
 100     uint16_t clkoff;    /* Note: Always little-endian */
 101 };
 102
 103 /* bt.c */
 104 void bt_device_init(struct bt_device_s *dev, struct bt_scatternet_s *net);
 105 void bt_device_done(struct bt_device_s *dev);