libbrasero-media/scsi-mode-select.c

   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 #ifdef HAVE_CONFIG_H
  32 #  include <config.h>
  33 #endif
  34
  35 #include <glib.h>
  36
  37 #include "scsi-spc1.h"
  38
  39 #include "scsi-error.h"
  40 #include "scsi-utils.h"
  41 #include "scsi-base.h"
  42 #include "scsi-command.h"
  43 #include "scsi-opcodes.h"
  44 #include "scsi-mode-pages.h"
  45
  46 /**
  47  * MODE SELECT command description (defined in SPC, Scsi Primary Commands)
  48  */
  49
  50 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
  51
  52 struct _BraseroModeSelectCDB {
  53         uchar opcode            :8;
  54
  55         uchar SP                :1;
  56         uchar reserved0         :3;
  57         uchar PF                :1;
  58         uchar reserved1         :3;
  59
  60         uchar reserved2         [5];
  61
  62         uchar alloc_len         [2];
  63         uchar ctl;
  64 };
  65
  66 #else
  67
  68 struct _BraseroModeSelectCDB {
  69         uchar opcode            :8;
  70
  71         uchar reserved0         :3;
  72         uchar PF                :1;
  73         uchar reserved1         :3;
  74         uchar SP                :1;
  75
  76         uchar reserved2         [5];
  77
  78         uchar alloc_len         [2];
  79         uchar ctl;
  80 };
  81
  82 #endif
  83
  84 typedef struct _BraseroModeSelectCDB BraseroModeSelectCDB;
  85
  86 BRASERO_SCSI_COMMAND_DEFINE (BraseroModeSelectCDB,
  87                              MODE_SELECT,
  88                              BRASERO_SCSI_WRITE);
  89
  90 #define BRASERO_MODE_DATA(data)                 ((BraseroScsiModeData *) (data))
  91
  92 BraseroScsiResult
  93 brasero_spc1_mode_select (BraseroDeviceHandle *handle,
  94                           BraseroScsiModeData *data,
  95                           int size,
  96                           BraseroScsiErrCode *error)
  97 {
  98         BraseroModeSelectCDB *cdb;
  99         BraseroScsiResult res;
 100
 101         g_return_val_if_fail (handle != NULL, BRASERO_SCSI_FAILURE);
 102
 103         cdb = brasero_scsi_command_new (&info, handle);
 104         cdb->PF = 1;
 105         cdb->SP = 0;
 106
 107         /* Header pages lengths should be 0 */
 108 //      BRASERO_SET_16 (data->hdr.len, 0);
 109 //      BRASERO_SET_16 (data->hdr.bdlen, 0);
 110
 111         BRASERO_SET_16 (cdb->alloc_len, size);
 112         res = brasero_scsi_command_issue_sync (cdb, data, size, error);
 113         brasero_scsi_command_free (cdb);
 114
 115         return res;
 116 }