linux/net/bluetooth/lib.c
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   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
  36void 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}
  45EXPORT_SYMBOL(baswap);
  46
  47char *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}
  59EXPORT_SYMBOL(batostr);
  60
  61/* Bluetooth error codes to Unix errno mapping */
  62int 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}
 152EXPORT_SYMBOL(bt_to_errno);
 153
 154int 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}
 171EXPORT_SYMBOL(bt_printk);
 172
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