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Viewing changes to src/scsi/scsi-read-disc-info.c

  • Committer: Bazaar Package Importer
  • Author(s): Mario Danic
  • Date: 2007-06-04 14:06:16 UTC
  • mto: (1.4.1 experimental)
  • mto: This revision was merged to the branch mainline in revision 10.
  • Revision ID: james.westby@ubuntu.com-20070604140616-gtp1vsiuqr5grutk
Tags: upstream-0.5.90
Import upstream version 0.5.90

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src/scsi/scsi-read-disc-info.c
 
1
/***************************************************************************
 
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 *            scsi-read-disc-info.c
 
3
 *
 
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 *  Thu Oct 26 16:51:36 2006
 
5
 *  Copyright  2006  Rouquier Philippe
 
6
 *  <bonfire-app@wanadoo.fr>
 
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 ****************************************************************************/
 
8
 
 
9
/*
 
10
 * This program is free software; you can redistribute it and/or modify
 
11
 * it under the terms of the GNU General Public License as published by
 
12
 * the Free Software Foundation; either version 2 of the License, or
 
13
 * (at your option) any later version.
 
14
 * 
 
15
 * This program is distributed in the hope that it will be useful,
 
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
18
 * GNU Library General Public License for more details.
 
19
 * 
 
20
 * You should have received a copy of the GNU General Public License
 
21
 * along with this program; if not, write to the Free Software
 
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor Boston, MA 02110-1301,  USA
 
23
 */
 
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#include <fcntl.h>
 
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#ifdef HAVE_CONFIG_H
 
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#  include <config.h>
 
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#endif
 
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#include <glib.h>
 
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#include "scsi-error.h"
 
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#include "scsi-utils.h"
 
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#include "scsi-base.h"
 
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#include "scsi-command.h"
 
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#include "scsi-opcodes.h"
 
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#include "scsi-read-disc-info.h"
 
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
 
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struct _BraseroRdDiscInfoCDB {
 
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        uchar opcode;
 
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        uchar data_type         :3;
 
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        uchar reserved0         :5;
 
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        uchar reserved1         [5];
 
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        uchar alloc_len         [2];
 
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        uchar ctl;
 
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};
 
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#else
 
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struct _BraseroRdDiscInfoCDB {
 
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        uchar opcode;
 
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        uchar reserved0         :5;
 
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        uchar data_type         :3;
 
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        uchar reserved1         [5];
 
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        uchar alloc_len         [2];
 
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        uchar ctl;
 
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};
 
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#endif
 
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typedef struct _BraseroRdDiscInfoCDB BraseroRdDiscInfoCDB;
 
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BRASERO_SCSI_COMMAND_DEFINE (BraseroRdDiscInfoCDB,
 
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                             READ_DISC_INFORMATION,
 
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                             O_RDONLY,
 
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                             BRASERO_SCSI_READ);
 
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typedef enum {
 
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BRASERO_DISC_INFO_STD           = 0x00,
 
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BRASERO_DISC_INFO_TRACK_RES     = 0x01,
 
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BRASERO_DISC_INFO_POW_RES       = 0x02,
 
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        /* reserved */
 
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} BraseroDiscInfoType;
 
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BraseroScsiResult
 
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brasero_mmc1_read_disc_information_std (int fd,
 
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                                        BraseroScsiDiscInfoStd **info_return,
 
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                                        int *size,
 
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                                        BraseroScsiErrCode *error)
 
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{
 
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        BraseroScsiDiscInfoStd std_info;
 
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        BraseroScsiDiscInfoStd *buffer;
 
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        BraseroRdDiscInfoCDB *cdb;
 
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        BraseroScsiResult res;
 
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        int request_size;
 
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        if (!info_return || !size) {
 
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                BRASERO_SCSI_SET_ERRCODE (error, BRASERO_SCSI_BAD_ARGUMENT);
 
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                return BRASERO_SCSI_FAILURE;
 
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        }
 
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        cdb = brasero_scsi_command_new (&info, fd);
 
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        cdb->data_type = BRASERO_DISC_INFO_STD;
 
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        BRASERO_SET_16 (cdb->alloc_len, sizeof (BraseroScsiDiscInfoStd));
 
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        memset (&std_info, 0, sizeof (BraseroScsiDiscInfoStd));
 
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        res = brasero_scsi_command_issue_sync (cdb,
 
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                                               &std_info,
 
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                                               sizeof (BraseroScsiDiscInfoStd),
 
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                                               error);
 
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        if (res)
 
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                goto end;
 
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        request_size = BRASERO_GET_16 (std_info.len) + 
 
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                       sizeof (std_info.len);
 
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        buffer = (BraseroScsiDiscInfoStd *) g_new0 (uchar, request_size);
 
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        BRASERO_SET_16 (cdb->alloc_len, request_size);
 
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        res = brasero_scsi_command_issue_sync (cdb, buffer, request_size, error);
 
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        if (res) {
 
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                g_free (buffer);
 
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                goto end;
 
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        }
 
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        if (request_size != BRASERO_GET_16 (buffer->len) + sizeof (buffer->len)) {
 
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                BRASERO_SCSI_SET_ERRCODE (error, BRASERO_SCSI_SIZE_MISMATCH);
 
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                res = BRASERO_SCSI_FAILURE;
 
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                g_free (buffer);
 
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                goto end;
 
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        }
 
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        *info_return = buffer;
 
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        *size = request_size;
 
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end:
 
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        brasero_scsi_command_free (cdb);
 
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        return res;
 
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}
 
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BraseroScsiResult
 
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brasero_mmc5_read_disc_information_tracks (int fd,
 
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                                           BraseroScsiTrackResInfo *info_return,
 
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                                           int size,
 
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                                           BraseroScsiErrCode *error)
 
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{
 
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        BraseroRdDiscInfoCDB *cdb;
 
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        BraseroScsiResult res;
 
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        cdb = brasero_scsi_command_new (&info, fd);
 
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        cdb->data_type = BRASERO_DISC_INFO_TRACK_RES;
 
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        BRASERO_SET_16 (cdb->alloc_len, size);
 
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        memset (info_return, 0, size);
 
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        res = brasero_scsi_command_issue_sync (cdb, info_return, size, error);
 
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        brasero_scsi_command_free (cdb);
 
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        return res;
 
159
}
 
160
 
 
161
BraseroScsiResult
 
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brasero_mmc5_read_disc_information_pows (int fd,
 
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                                         BraseroScsiPOWResInfo *info_return,
 
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                                         int size,
 
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                                         BraseroScsiErrCode *error)
 
166
{
 
167
        BraseroRdDiscInfoCDB *cdb;
 
168
        BraseroScsiResult res;
 
169
 
 
170
        cdb = brasero_scsi_command_new (&info, fd);
 
171
        cdb->data_type = BRASERO_DISC_INFO_POW_RES;
 
172
        BRASERO_SET_16 (cdb->alloc_len, size);
 
173
 
 
174
        memset (info_return, 0, size);
 
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        res = brasero_scsi_command_issue_sync (cdb, info_return, size, error);
 
176
        brasero_scsi_command_free (cdb);
 
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        return res;
 
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}