444 lines
9.0 KiB
C
444 lines
9.0 KiB
C
/*
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$Id: _cdio_bsdi_old.c,v 1.1 2003/03/29 17:32:00 rocky Exp $
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Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
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Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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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 "cdio_assert.h"
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#include "cdio_private.h"
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#include "util.h"
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#include "sector.h"
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#include "logging.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static const char _rcsid[] = "$Id: _cdio_bsdi_old.c,v 1.1 2003/03/29 17:32:00 rocky Exp $";
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#if HAVE_BSDI_CDROM
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#include </sys/dev/scsi/scsi.h>
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#include </sys/dev/scsi/scsi_ioctl.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define DEFAULT_CDIO_DEVICE "/dev/rsr0c"
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/* reader */
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typedef struct {
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int fd;
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enum {
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_AM_NONE,
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_AM_READ_CD,
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_AM_READ_10
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} access_mode;
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char *source_name;
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bool init;
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} _img_private_t;
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static int
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_scsi_cmd (int fd, struct scsi_user_cdb *sucp, const char *tag)
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{
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u_char *cp;
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if (ioctl (fd, SCSIRAWCDB, sucp))
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{
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vcd_error ("%s: ioctl (SCSIRAWCDB): %s", tag, strerror (errno));
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return 1;
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}
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if (sucp->suc_sus.sus_status)
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{
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cp = sucp->suc_sus.sus_sense;
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vcd_info("%s: cmd: %x sus_status %d ", tag, sucp->suc_cdb[0],
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sucp->suc_sus.sus_status);
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vcd_info(" sense: %x %x %x %x %x %x %x %x", cp[0], cp[1], cp[2],
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cp[3], cp[4], cp[5], cp[6], cp[7]);
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return 1;
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}
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return 0;
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}
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/*!
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Initialize CD device.
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*/
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static bool
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_cdio_init (_img_private_t *_obj)
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{
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if (_obj->init)
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return;
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_obj->fd = open (_obj->source_name, O_RDONLY, 0);
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_obj->access_mode = _AM_READ_CD;
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if (_obj->fd < 0)
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{
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cdio_error ("open (%s): %s", _obj->source_name, strerror (errno));
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return false;
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}
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_obj->init = true;
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_obj->toc_init = false;
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return true;
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}
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/*!
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Release and free resources associated with cd.
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*/
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static void
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_cdio_free (void *user_data)
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{
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_img_private_t *_obj = user_data;
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free (_obj->source_name);
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if (_obj->fd)
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close (_obj->fd);
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free (_obj);
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}
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static int
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_set_bsize (int fd, unsigned int bsize)
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{
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struct
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{
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uint8_t reserved1;
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uint8_t medium;
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uint8_t reserved2;
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uint8_t block_desc_length;
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uint8_t density;
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uint8_t number_of_blocks_hi;
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uint8_t number_of_blocks_med;
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uint8_t number_of_blocks_lo;
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uint8_t reserved3;
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uint8_t block_length_hi;
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uint8_t block_length_med;
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uint8_t block_length_lo;
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} mh;
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struct scsi_user_cdb suc;
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memset (&mh, 0, sizeof (mh));
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memset (&suc, 0, sizeof (struct scsi_user_cdb));
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suc.suc_cdb[0] = 0x15;
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suc.suc_cdb[1] = 1 << 4;
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suc.suc_cdb[4] = 12;
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suc.suc_cdblen = 6;;
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suc.suc_data = (u_char *)&mh;
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suc.suc_datalen = sizeof (mh);
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suc.suc_timeout = 500;
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suc.suc_flags = SUC_WRITE;
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mh.block_desc_length = 0x08;
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mh.block_length_hi = (bsize >> 16) & 0xff;
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mh.block_length_med = (bsize >> 8) & 0xff;
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mh.block_length_lo = (bsize >> 0) & 0xff;
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return _scsi_cmd (fd, &suc, "_set_bsize");
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}
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static int
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_read_mode2 (int fd, void *buf, uint32_t lba, unsigned nblocks,
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bool _workaround)
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{
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struct scsi_user_cdb suc;
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int retval = 0;
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memset (&suc, 0, sizeof (struct scsi_user_cdb));
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suc.suc_cdb[0] = (_workaround
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? 0x28 /* CMD_READ_10 */
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: 0xbe /* CMD_READ_CD */);
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if (!_workaround)
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suc.suc_cdb[1] = 0; /* sector size mode2 */
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suc.suc_cdb[2] = (lba >> 24) & 0xff;
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suc.suc_cdb[3] = (lba >> 16) & 0xff;
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suc.suc_cdb[4] = (lba >> 8) & 0xff;
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suc.suc_cdb[5] = (lba >> 0) & 0xff;
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suc.suc_cdb[6] = (nblocks >> 16) & 0xff;
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suc.suc_cdb[7] = (nblocks >> 8) & 0xff;
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suc.suc_cdb[8] = (nblocks >> 0) & 0xff;
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if (!_workaround)
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suc.suc_cdb[9] = 0x58; /* 2336 mode2 mixed form */
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suc.suc_cdblen = _workaround ? 10 : 12;
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suc.suc_data = buf;
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suc.suc_datalen = 2336 * nblocks;
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suc.suc_timeout = 500;
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suc.suc_flags = SUC_READ;
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if (_workaround)
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{
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if ((retval = _set_bsize (fd, 2336)))
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goto out;
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if ((retval = _scsi_cmd(fd, &suc, "_read_mode2_workaround")))
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{
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_set_bsize (fd, 2048);
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goto out;
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}
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retval = _set_bsize (fd, 2048);
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}
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else
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retval = _scsi_cmd(fd, &suc, "_read_mode2");
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out:
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return retval;
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}
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static int
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_read_mode2_sector (void *user_data, void *data, uint32_t lsn, bool form2)
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{
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_img_private_t *_obj = user_data;
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_cdio_init (_obj);
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if (form2)
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{
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retry:
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switch (_obj->access_mode)
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{
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case _AM_NONE:
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vcd_error ("no way to read mode2");
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return 1;
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break;
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case _AM_READ_CD:
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case _AM_READ_10:
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if (_read_mode2 (_obj->fd, data, lsn, 1,
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(_obj->access_mode == _AM_READ_10)))
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{
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if (_obj->access_mode == _AM_READ_CD)
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{
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vcd_info ("READ_CD failed; switching to READ_10 mode...");
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_obj->access_mode = _AM_READ_10;
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goto retry;
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}
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else
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{
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vcd_info ("READ_10 failed; no way to read mode2 left.");
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_obj->access_mode = _AM_NONE;
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goto retry;
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}
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return 1;
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}
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break;
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}
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}
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else
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{
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char buf[M2RAW_SIZE] = { 0, };
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int retval;
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if ((retval = _read_mode2_sector (_obj, buf, lsn, true)))
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return retval;
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memcpy (data, buf + 8, M2F1_SECTOR_SIZE);
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}
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return 0;
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}
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static const u_char scsi_cdblen[8] = {6, 10, 10, 12, 12, 12, 10, 10};
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static uint32_t
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_cdio_stat_size (void *user_data)
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{
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_img_private_t *_obj = user_data;
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struct scsi_user_cdb suc;
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uint8_t buf[12] = { 0, };
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uint32_t retval;
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_cdio_init(_obj);
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memset (&suc, 0, sizeof (struct scsi_user_cdb));
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suc.suc_cdb[0] = 0x43; /* CMD_READ_TOC_PMA_ATIP */
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suc.suc_cdb[1] = 0; /* lba; msf: 0x2 */
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suc.suc_cdb[6] = 0xaa; /* CDROM_LEADOUT */
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suc.suc_cdb[8] = 12; /* ? */
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suc.suc_cdblen = 10;
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suc.suc_data = buf;
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suc.suc_datalen = sizeof (buf);
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suc.suc_timeout = 500;
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suc.suc_flags = SUC_READ;
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if (_scsi_cmd(_obj->fd, &suc, "_cdio_stat_size"))
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return 0;
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{
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int i;
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retval = 0;
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for (i = 8; i < 12; i++)
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{
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retval <<= 8;
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retval += buf[i];
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}
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}
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return retval;
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}
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/*!
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Return the value associated with the key "arg".
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*/
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static const char *
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_cdio_get_arg (void *user_data, const char key[])
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{
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_img_private_t *_obj = user_data;
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if (!strcmp (key, "source")) {
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return _obj->source_name;
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} else if (!strcmp (key, "access-mode")) {
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switch (_obj->access_mode) {
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case _AM_READ_CD:
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return "READ_CD";
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case _AM_READ_10:
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return "READ_10";
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case _AM_NONE:
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return "no access method";
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}
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}
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return NULL;
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}
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/*!
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Return a string containing the default VCD device if none is specified.
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*/
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static char *
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_cdio_get_default_device()
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{
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return strdup(DEFAULT_CDIO_DEVICE);
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}
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/*!
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Set the key "arg" to "value" in source device.
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*/
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static int
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_cdio_set_arg (void *user_data, const char key[], const char value[])
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{
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_img_private_t *_obj = user_data;
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if (!strcmp (key, "source"))
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{
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if (!value)
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return -2;
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free (_obj->source_name);
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_obj->source_name = strdup (value);
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}
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else if (!strcmp (key, "access-mode"))
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{
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if (!strcmp(value, "READ_CD"))
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_obj->access_mode = _AM_READ_CD;
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else if (!strcmp(value, "READ_10"))
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_obj->access_mode = _AM_READ_10;
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else
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cdio_error ("unknown access type: %s. ignored.", value);
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}
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else
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return -1;
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return 0;
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}
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#endif /* HAVE_BSDI_CDROM */
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CdIo *
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cdio_open_bsdi (const char *source_name)
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{
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#ifdef HAVE_BSDI_CDROM
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_img_private_t *_data;
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cdio_funcs _funcs = {
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.eject_media = _cdio_eject_media,
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.free = _cdio_free,
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.get_arg = _cdio_get_arg,
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.get_default_device = _cdio_get_default_device,
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.read_mode2_sector = _read_mode2_sector,
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.set_arg = _cdio_set_arg,
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.stat_size = _cdio_stat_size
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};
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_data = _cdio_malloc (sizeof (_img_private_t));
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_data->access_mode = _AM_READ_CD;
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_data->init = false;
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_data->fd = -1;
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_cdio_set_arg(_data, "source", (NULL == source_name)
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? DEFAULT_CDIO_DEVICE: source_name);
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ret = cdio_new (_data, &_funcs);
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if (ret == NULL) return NULL;
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if (_cdio_init(_data))
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return ret;
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else {
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_cdio_free (_data);
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return NULL;
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}
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#else
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return NULL;
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#endif /* HAVE_BSDI_CDROM */
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}
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bool
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cdio_have_bsdi (void)
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{
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#ifdef HAVE_BSDI_CDROM
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return true;
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#else
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return false;
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#endif /* HAVE_BSDI_CDROM */
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}
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