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483 lines
10 KiB
483 lines
10 KiB
/*
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* $Id$
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*
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* This file is part of WorkMan, the civilized CD player library
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* (c) 1991-1997 by Steven Grimm (original author)
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* (c) by Dirk Försterling (current 'author' = maintainer)
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* The maintainer can be contacted by his e-mail address:
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* milliByte@DeathsDoor.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*
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* SVR4 specific. Much of this is similar to plat_hpux.c.
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*/
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static char plat_svr4_id[] = "$Id$";
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#if (defined(SVR4) || defined(__SVR4)) && !defined(sun) && !defined(__sun) && !defined(sony_news) && !defined(__sony_news)
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#include <sys/types.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/mkdev.h>
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#include <sys/stat.h>
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#include <sys/sdi.h>
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#include <sys/sdi_edt.h>
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#include <sys/scsi.h>
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#include <errno.h>
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#include "include/wm_config.h"
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#include "include/wm_struct.h"
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#include "include/wm_cdtext.h"
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#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
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void *malloc();
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char *strchr();
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int min_volume = 0;
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int max_volume = 255;
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static int
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create_cdrom_node(char *dev_name)
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{
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char pass_through[100];
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int file_des;
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dev_t pass_thru_device;
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int err;
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int ccode;
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strncpy(pass_through, dev_name, sizeof(pass_through) - 2);
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strcat(pass_through, "p" );
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if (setreuid(-1,0) < 0)
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{
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perror("setregid/setreuid/access");
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return -1;
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}
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ccode = access(pass_through, F_OK);
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if (ccode < 0)
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{
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if ((file_des = open(dev_name, O_RDONLY)) < 0)
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{
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perror("open cdrom devices failed");
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return -1;
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}
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if (ioctl(file_des, B_GETDEV, &pass_thru_device) < 0)
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{
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perror("Call to get pass-through device number failed");
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return -1;
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}
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(void)close(file_des);
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if (mknod(pass_through, (S_IFCHR | S_IREAD | S_IWRITE),
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pass_thru_device) < 0)
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{
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perror("Unable to make pass-through node");
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return -1;
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}
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if (chown(pass_through, 0 , 0) < 0)
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{
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perror("chown");
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return -1;
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}
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if (chmod(pass_through, 0660 ) < 0)
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{
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perror("chmod");
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return -1;
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}
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}
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file_des = open( pass_through, O_RDWR);
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err = errno;
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if ( (setreuid(-1,getuid()) < 0) || (setregid(-1,getgid()) < 0) )
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{
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perror("setreuid/setregid");
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return -1;
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}
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errno = err;
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return file_des;
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} /* create_cdrom_node() */
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const char*
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find_cdrom()
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{
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/*
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** the path of the device has to start w/ /dev
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** otherwise we are vulnerable to race conditions
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** Thomas Biege <thomas@suse.de>
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*/
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const char* device = NULL;
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device = getenv("CDROM");
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if ( (device != NULL) &&
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!(strncmp("/dev/", device, 5) ||
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strstr(_device, "/../") ))
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return device;
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if (access("/dev/cdrom/cdrom1", F_OK) == 0)
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{
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return "/dev/cdrom/cdrom1";
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}
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else if (access("/dev/cdrom/cdrom2", F_OK) == 0)
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{
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return "/dev/cdrom/cdrom2";
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}
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else
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{
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fprintf(stderr, "Couldn't find a CD device!\n");
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return NULL;
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}
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} /* find_cdrom() */
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/*
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* Initialize the drive. A no-op for the generic driver.
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*/
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int
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gen_init(struct wm_drive *d)
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{
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return (0);
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} /* gen_init() */
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/*
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* Open the CD and figure out which kind of drive is attached.
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*/
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int
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wmcd_open(struct wm_drive *d)
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{
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int fd, flag = 1;
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static int warned = 0;
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char vendor[32] = WM_STR_GENVENDOR;
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char model[32] = WM_STR_GENMODEL;
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char rev[32] = WM_STR_GENREV;
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if (d->fd >= 0) /* Device already open? */
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{
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): [device is open (fd=%d)]\n", d->fd);
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return (0);
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}
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if (d->cd_device == NULL)
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d->cd_device = DEFAULT_CD_DEVICE;
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d->fd = create_cdrom_node(d->cd_device); /* this will do open */
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if (d->fd < 0)
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{
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if (errno == EACCES)
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{
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if (! warned)
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{
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fprintf(stderr,"Cannot access %s\n",d->cd_device);
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warned++;
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}
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}
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else if (errno != EINTR)
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{
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return ( -6 );
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}
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/* No CD in drive. (Is this true also for svr4 ? XXX ) */
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return (1);
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}
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if (warned)
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{
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warned = 0;
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fprintf(stderr, "Thank you.\n");
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}
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/* Now fill in the relevant parts of the wm_drive structure. */
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fd = d->fd;
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if (wm_scsi_get_drive_type(d, vendor, model, rev) < 0)
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{
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perror("Cannot inquiry drive for it's type");
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exit(1);
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}
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find_drive_struct(vendor, model, rev);
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d->fd = fd;
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return (0);
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} /* wmcd_open() */
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/*
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* Re-Open the device if it is open.
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*/
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int
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wmcd_reopen( struct wm_drive *d )
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{
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int status;
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do {
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen\n");
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status = gen_close( d );
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wm_susleep( 1000 );
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calling wmcd_open()\n");
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status = wmcd_open( d ); /* open it as usual */
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wm_susleep( 1000 );
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} while ( status != 0 );
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return status;
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} /* wmcd_reopen() */
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/*
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* Send a SCSI command out the bus.
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*/
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int
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wm_scsi( struct wm_drive *d, unsigned char *xcdb, int cdblen,
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char *retbuf, int retbuflen, int getreply)
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{
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int ccode;
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int file_des = d->fd;
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int i,j;
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unsigned char sense_buffer[ SENSE_SZ ];
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int errno_save;
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/* getreply == 1 is read, == 0 is write */
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struct sb sb;
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struct scs scs;
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sb.sb_type = ISCB_TYPE;
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sb.SCB.sc_comp_code = SDI_PROGRES;
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sb.SCB.sc_int = NULL;
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sb.SCB.sc_wd = 0;
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sb.SCB.sc_dev.sa_major = 0;
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sb.SCB.sc_dev.sa_minor = 0;
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sb.SCB.sc_dev.sa_lun = 0;
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sb.SCB.sc_dev.sa_exlun = 0;
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sb.SCB.sc_status = 0;
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sb.SCB.sc_link = (struct sb *) NULL;
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sb.SCB.sc_resid = 0;
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sb.SCB.sc_cmdpt = (void *)xcdb;
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sb.SCB.sc_cmdsz = cdblen;
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sb.SCB.sc_datapt = retbuf ;
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sb.SCB.sc_datasz = retbuflen ;
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if (getreply == 1)
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sb.SCB.sc_mode = SCB_READ;
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else
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sb.SCB.sc_mode = SCB_WRITE;
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sb.SCB.sc_time = 500;
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ccode = ioctl(file_des, SDI_SEND, &sb);
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if ( (sb.SCB.sc_comp_code != 0xd000000e ) ||
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( sb.SCB.sc_status != 02) )
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return ccode;
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errno_save = errno;
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sb.SCB.sc_comp_code = SDI_PROGRES;
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sb.SCB.sc_int = NULL;
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sb.SCB.sc_wd = 0;
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sb.SCB.sc_dev.sa_major = 0;
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sb.SCB.sc_dev.sa_minor = 0;
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sb.SCB.sc_dev.sa_lun = 0;
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sb.SCB.sc_dev.sa_exlun = 0;
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sb.SCB.sc_status = 0;
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sb.SCB.sc_link = (struct sb *) NULL;
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sb.SCB.sc_resid = 0;
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scs.ss_op = SS_RETQSEN;
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scs.ss_lun = 0;
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scs.ss_addr1 = 0;
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scs.ss_addr = 0;
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scs.ss_len = SENSE_SZ;
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scs.ss_cont = 0;
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sb.SCB.sc_cmdpt = SCS_AD(&scs);
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sb.SCB.sc_cmdsz = SCS_SZ;
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sb.SCB.sc_datapt = sense_buffer;
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sb.SCB.sc_datasz = 18;
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sb.SCB.sc_mode = SCB_READ;
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sb.SCB.sc_time = 5000;
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if (ioctl(file_des, SDI_SEND, &sb) < 0)
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{
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fprintf(stderr,"Cannot read sense.\n");
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exit(-1);
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}
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errno=errno_save;
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return -1;
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} /* wm_scsi() */
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int
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gen_close( struct wm_drive *d )
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{
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if(d->fd != -1) {
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wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
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close(d->fd);
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d->fd = -1;
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}
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return 0;
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}
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/*
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* Get the current status of the drive: the current play mode, the absolute
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* position from start of disc (in frames), and the current track and index
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* numbers if the CD is playing or paused.
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*/
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int
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gen_get_drive_status(struct wm_drive *d, int oldmode,
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int *mode, int *pos, int *track, int *index)
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{
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return (wm_scsi2_get_drive_status(d, oldmode, mode, pos, track, index));
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} /* gen_get_drive_status() */
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/*
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* Get the number of tracks on the CD.
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*/
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int
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gen_get_trackcount(struct wm_drive *d, int *tracks)
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{
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return (wm_scsi2_get_trackcount(d, tracks));
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} /* gen_get_trackcount() */
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/*
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* Get the start time and mode (data or audio) of a track.
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*/
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int
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gen_get_trackinfo(struct wm_drive *d, int track, int *data, int *startframe)
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{
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return (wm_scsi2_get_trackinfo(d, track, data, startframe));
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} /* gen_get_trackinfo() */
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/*
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* Get the number of frames on the CD.
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*/
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int
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gen_get_cdlen(struct wm_drive *d, int *frames)
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{
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int tmp;
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return (wm_scsi2_get_cdlen(d, frames));
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} /* gen_get_cdlen() */
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/*
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* Play the CD from one position to another (both in frames.)
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*/
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int
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gen_play(struct wm_drive *d, int start, int end)
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{
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return (wm_scsi2_play(d, start, end));
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} /* gen_play() */
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/*
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* Pause the CD.
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*/
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int
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gen_pause(struct wm_drive *d)
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{
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return (wm_scsi2_pause(d));
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} /* gen_pause() */
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/*
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* Resume playing the CD (assuming it was paused.)
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*/
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int
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gen_resume(struct wm_drive *d)
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{
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return (wm_scsi2_resume(d));
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} /* gen_resume() */
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/*
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* Stop the CD.
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*/
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int
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gen_stop(struct wm_drive *d)
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{
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return (wm_scsi2_stop(d));
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} /* gen_stop() */
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/*
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* Eject the current CD, if there is one.
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*/
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int
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gen_eject(struct wm_drive *d)
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{
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return (wm_scsi2_eject(d));
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} /* gen_eject() */
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/*
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* Close the tray.
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* please review scsi.c / wm_scsi2_closetray()
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* and send changes to milliByte@DeathsDoor.com
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*/
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int
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gen_closetray( struct wm_drive *d )
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{
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return(wm_scsi2_closetray(d));
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} /* gen_closetray() */
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/*
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* Set the volume level for the left and right channels. Their values
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* range from 0 to 100.
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*/
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int
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gen_set_volume(struct wm_drive *d, int left, int right)
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{
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return (wm_scsi2_set_volume(d, left, right));
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} /* gen_set_volume() */
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/*
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* Read the initial volume from the drive, if available. Each channel
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* ranges from 0 to 100, with -1 indicating data not available.
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*/
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int
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gen_get_volume(struct wm_drive *d, int *left, int *right)
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{
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return (wm_scsi2_get_volume(d, left, right));
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} /* gen_get_volume() */
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/*------------------------------------------------------------------------*
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* gen_get_cdtext(drive, buffer, length)
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*------------------------------------------------------------------------*/
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int
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gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_length)
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{
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/* This needs to be tested */
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return wm_scsi_get_cdtext(d, pp_buffer, p_buffer_length);
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} /* gen_get_cdtext() */
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#endif
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