net/bluetooth/lib.c

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (C) 2000-2001 Qualcomm Incorporated
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 /* Bluetooth kernel library. */
  26
  27 #include <linux/module.h>
  28
  29 #include <linux/kernel.h>
  30 #include <linux/stddef.h>
  31 #include <linux/string.h>
  32 #include <asm/errno.h>
  33
  34 #include <net/bluetooth/bluetooth.h>
  35
  36 void baswap(bdaddr_t *dst, bdaddr_t *src)
  37 {
  38         unsigned char *d = (unsigned char *) dst;
  39         unsigned char *s = (unsigned char *) src;
  40         unsigned int i;
  41
  42         for (i = 0; i < 6; i++)
  43                 d[i] = s[5 - i];
  44 }
  45 EXPORT_SYMBOL(baswap);
  46
  47 char *batostr(bdaddr_t *ba)
  48 {
  49         static char str[2][18];
  50         static int i = 1;
  51
  52         i ^= 1;
  53         sprintf(str[i], "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
  54                 ba->b[5], ba->b[4], ba->b[3],
  55                 ba->b[2], ba->b[1], ba->b[0]);
  56
  57         return str[i];
  58 }
  59 EXPORT_SYMBOL(batostr);
  60
  61 /* Bluetooth error codes to Unix errno mapping */
  62 int bt_to_errno(__u16 code)
  63 {
  64         switch (code) {
  65         case 0:
  66                 return 0;
  67
  68         case 0x01:
  69                 return EBADRQC;
  70
  71         case 0x02:
  72                 return ENOTCONN;
  73
  74         case 0x03:
  75                 return EIO;
  76
  77         case 0x04:
  78                 return EHOSTDOWN;
  79
  80         case 0x05:
  81                 return EACCES;
  82
  83         case 0x06:
  84                 return EBADE;
  85
  86         case 0x07:
  87                 return ENOMEM;
  88
  89         case 0x08:
  90                 return ETIMEDOUT;
  91
  92         case 0x09:
  93                 return EMLINK;
  94
  95         case 0x0a:
  96                 return EMLINK;
  97
  98         case 0x0b:
  99                 return EALREADY;
 100
 101         case 0x0c:
 102                 return EBUSY;
 103
 104         case 0x0d:
 105         case 0x0e:
 106         case 0x0f:
 107                 return ECONNREFUSED;
 108
 109         case 0x10:
 110                 return ETIMEDOUT;
 111
 112         case 0x11:
 113         case 0x27:
 114         case 0x29:
 115         case 0x20:
 116                 return EOPNOTSUPP;
 117
 118         case 0x12:
 119                 return EINVAL;
 120
 121         case 0x13:
 122         case 0x14:
 123         case 0x15:
 124                 return ECONNRESET;
 125
 126         case 0x16:
 127                 return ECONNABORTED;
 128
 129         case 0x17:
 130                 return ELOOP;
 131
 132         case 0x18:
 133                 return EACCES;
 134
 135         case 0x1a:
 136                 return EPROTONOSUPPORT;
 137
 138         case 0x1b:
 139                 return ECONNREFUSED;
 140
 141         case 0x19:
 142         case 0x1e:
 143         case 0x23:
 144         case 0x24:
 145         case 0x25:
 146                 return EPROTO;
 147
 148         default:
 149                 return ENOSYS;
 150         }
 151 }
 152 EXPORT_SYMBOL(bt_to_errno);
 153
 154 int bt_printk(const char *level, const char *format, ...)
 155 {
 156         struct va_format vaf;
 157         va_list args;
 158         int r;
 159
 160         va_start(args, format);
 161
 162         vaf.fmt = format;
 163         vaf.va = &args;
 164
 165         r = printk("%sBluetooth: %pV\n", level, &vaf);
 166
 167         va_end(args);
 168
 169         return r;
 170 }
 171 EXPORT_SYMBOL(bt_printk);