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/config.h>
  28 #include <linux/module.h>
  29
  30 #include <linux/kernel.h>
  31 #include <linux/stddef.h>
  32 #include <linux/string.h>
  33 #include <asm/errno.h>
  34
  35 #include <net/bluetooth/bluetooth.h>
  36
  37 void bt_dump(char *pref, __u8 *buf, int count)
  38 {
  39         char *ptr;
  40         char line[100];
  41         unsigned int i;
  42
  43         printk(KERN_INFO "%s: dump, len %d\n", pref, count);
  44
  45         ptr = line;
  46         *ptr = 0;
  47         for (i = 0; i < count; i++) {
  48                 ptr += sprintf(ptr, " %2.2X", buf[i]);
  49
  50                 if (i && !((i + 1) % 20)) {
  51                         printk(KERN_INFO "%s:%s\n", pref, line);
  52                         ptr = line;
  53                         *ptr = 0;
  54                 }
  55         }
  56
  57         if (line[0])
  58                 printk(KERN_INFO "%s:%s\n", pref, line);
  59 }
  60 EXPORT_SYMBOL(bt_dump);
  61
  62 void baswap(bdaddr_t *dst, bdaddr_t *src)
  63 {
  64         unsigned char *d = (unsigned char *) dst;
  65         unsigned char *s = (unsigned char *) src;
  66         unsigned int i;
  67
  68         for (i = 0; i < 6; i++)
  69                 d[i] = s[5 - i];
  70 }
  71 EXPORT_SYMBOL(baswap);
  72
  73 char *batostr(bdaddr_t *ba)
  74 {
  75         static char str[2][18];
  76         static int i = 1;
  77
  78         i ^= 1;
  79         sprintf(str[i], "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
  80                 ba->b[0], ba->b[1], ba->b[2],
  81                 ba->b[3], ba->b[4], ba->b[5]);
  82
  83         return str[i];
  84 }
  85 EXPORT_SYMBOL(batostr);
  86
  87 /* Bluetooth error codes to Unix errno mapping */
  88 int bt_err(__u16 code)
  89 {
  90         switch (code) {
  91         case 0:
  92                 return 0;
  93
  94         case 0x01:
  95                 return EBADRQC;
  96
  97         case 0x02:
  98                 return ENOTCONN;
  99
 100         case 0x03:
 101                 return EIO;
 102
 103         case 0x04:
 104                 return EHOSTDOWN;
 105
 106         case 0x05:
 107                 return EACCES;
 108
 109         case 0x06:
 110                 return EBADE;
 111
 112         case 0x07:
 113                 return ENOMEM;
 114
 115         case 0x08:
 116                 return ETIMEDOUT;
 117
 118         case 0x09:
 119                 return EMLINK;
 120
 121         case 0x0a:
 122                 return EMLINK;
 123
 124         case 0x0b:
 125                 return EALREADY;
 126
 127         case 0x0c:
 128                 return EBUSY;
 129
 130         case 0x0d:
 131         case 0x0e:
 132         case 0x0f:
 133                 return ECONNREFUSED;
 134
 135         case 0x10:
 136                 return ETIMEDOUT;
 137
 138         case 0x11:
 139         case 0x27:
 140         case 0x29:
 141         case 0x20:
 142                 return EOPNOTSUPP;
 143
 144         case 0x12:
 145                 return EINVAL;
 146
 147         case 0x13:
 148         case 0x14:
 149         case 0x15:
 150                 return ECONNRESET;
 151
 152         case 0x16:
 153                 return ECONNABORTED;
 154
 155         case 0x17:
 156                 return ELOOP;
 157
 158         case 0x18:
 159                 return EACCES;
 160
 161         case 0x1a:
 162                 return EPROTONOSUPPORT;
 163
 164         case 0x1b:
 165                 return ECONNREFUSED;
 166
 167         case 0x19:
 168         case 0x1e:
 169         case 0x23:
 170         case 0x24:
 171         case 0x25:
 172                 return EPROTO;
 173
 174         default:
 175                 return ENOSYS;
 176         }
 177 }
 178 EXPORT_SYMBOL(bt_err);