libbrasero-media/scsi-utils.h

   1 /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
   2 /*
   3  * Libbrasero-media
   4  * Copyright (C) Philippe Rouquier 2005-2009 <bonfire-app@wanadoo.fr>
   5  *
   6  * Libbrasero-media is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * The Libbrasero-media authors hereby grant permission for non-GPL compatible
  12  * GStreamer plugins to be used and distributed together with GStreamer
  13  * and Libbrasero-media. This permission is above and beyond the permissions granted
  14  * by the GPL license by which Libbrasero-media is covered. If you modify this code
  15  * you may extend this exception to your version of the code, but you are not
  16  * obligated to do so. If you do not wish to do so, delete this exception
  17  * statement from your version.
  18  *
  19  * Libbrasero-media is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to:
  26  *      The Free Software Foundation, Inc.,
  27  *      51 Franklin Street, Fifth Floor
  28  *      Boston, MA  02110-1301, USA.
  29  */
  30
  31 #include <errno.h>
  32 #include <glib.h>
  33
  34 #include "brasero-media.h"
  35 #include "scsi-base.h"
  36
  37 #ifndef _BURN_UTILS_H
  38 #define _BURN_UTILS_H
  39
  40 G_BEGIN_DECLS
  41
  42 #define BRASERO_GET_BCD(data)           ((((uchar)(data)&0xF0)>>4)*10+((uchar)(data)&0x0F))
  43 #define BRASERO_GET_16(data)            (((uchar)(data)[0]<<8)+(uchar)(data)[1])
  44 #define BRASERO_GET_24(data)            (((uchar)(data)[0]<<16)+((uchar)(data)[1]<<8)+((uchar)(data)[2]))
  45 #define BRASERO_GET_32(data)            (((uchar)(data)[0]<<24)+((uchar)(data)[1]<<16)+((uchar)(data)[2]<<8)+(uchar)(data)[3])
  46
  47 #define BRASERO_SET_BCD(data, num)      (uchar)(data)=((((num)/10)<<4)&0xF0)|((num)-(((num)/10)*10))
  48 #define BRASERO_SET_16(data, num)       (data)[0]=(((num)>>8)&0xFF);(data)[1]=(uchar)((num)&0xFF)
  49 #define BRASERO_SET_24(data, num)       (data)[0]=(uchar)(((num)>>16)&0xFF);(data)[1]=(uchar)(((num)>>8)&0xFF);(data)[2]=(uchar)((num)&0xFF);
  50 #define BRASERO_SET_32(data, num)       (data)[0]=(uchar)(((num)>>24)&0xFF);(data)[1]=(uchar)(((num)>>16)&0xFF);(data)[2]=(uchar)(((num)>>8)&0xFF);(data)[3]=(uchar)((num)&0xFF)
  51
  52 #define BRASERO_MSF_TO_LBA(minute, second, frame)       (((minute)*60+(second))*75+frame)
  53
  54 #define BRASERO_IS_BCD_VALID(number)    ((((uchar)(number) & 0x0f) < 0x09) && (((uchar)(number) & 0xF0) <= 0x90))
  55
  56 /**
  57  * Used to report errors and have some sort of debug output easily
  58  */
  59
  60 #define BRASERO_SCSI_SET_ERRCODE(err, code)                                     \
  61 {                                                                               \
  62         if (code == BRASERO_SCSI_ERRNO)  {                                      \
  63                 int errsv = errno;                                              \
  64                 BRASERO_MEDIA_LOG ("SCSI command error: %s",                    \
  65                                    g_strerror (errsv));                         \
  66         } else {                                                                \
  67                 BRASERO_MEDIA_LOG ("SCSI command error: %s",                    \
  68                                    brasero_scsi_strerror (code));               \
  69         }                                                                       \
  70         if (err)                                                                \
  71                 *(err) = code;                                                  \
  72 }
  73
  74 G_END_DECLS
  75
  76 #endif /* _BURN_UTILS_H */
  77
  78