Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 803 insertions, 0 deletions

diff --git a/kscd/libwm/plat_linux.c b/kscd/libwm/plat_linux.c
new file mode 100644
index 00000000..58768a40
--- /dev/null
+++ b/kscd/libwm/plat_linux.c
@@ -0,0 +1,803 @@
+/*
+ * $Id$
+ *
+ * This file is part of WorkMan, the civilized CD player library
+ * (c) 1991-1997 by Steven Grimm (original author)
+ * (c) by Dirk Försterling (current 'author' = maintainer)
+ * The maintainer can be contacted by his e-mail address:
+ * milliByte@DeathsDoor.com 
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *
+ * Linux-specific drive control routines.  Very similar to the Sun module.
+ */
+
+#if defined(__linux__)
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+/* Try to get around bug #29274 */
+#include <linux/version.h>
+#if 0
+/* this breaks the build on ia64 and s390 for example. 
+   sys/types.h is already included and should provide __u64.
+   please tell where we really need this and let's try to find
+   a working #if case for everyone ... adrian@suse.de */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,50)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,21) && LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+#undef __GNUC__
+typedef unsigned long long __u64; 
+#endif
+#endif
+
+#include "include/wm_config.h"
+#include "include/wm_struct.h"
+#include "include/wm_cdtext.h"
+
+#if defined(BSD_MOUNTTEST)
+  #include <mntent.h>
+#else
+  /*
+   * this is for glibc 2.x which defines ust structure in
+   * ustat.h not stat.h
+   */
+  #ifdef __GLIBC__
+    #include <sys/ustat.h>
+  #endif
+#endif
+
+
+#include <sys/time.h>
+#include <sys/ioctl.h>
+
+#ifndef __GNUC__
+#define __GNUC__ 1
+#endif
+/* needed for vanilla kernel headers, which do provide __u64 only
+   for ansi */
+#undef __STRICT_ANSI__
+/* needed for non-ansi kernel headers */
+#define asm __asm__
+#define inline __inline__
+#include <asm/types.h>
+#include <linux/cdrom.h>
+#undef asm
+#undef inline
+
+#include "include/wm_cdda.h"
+#include "include/wm_struct.h"
+#include "include/wm_platform.h"
+#include "include/wm_cdrom.h"
+#include "include/wm_scsi.h"
+#include "include/wm_helpers.h"
+
+#ifdef OSS_SUPPORT
+#include <linux/soundcard.h>
+#define CD_CHANNEL SOUND_MIXER_CD
+#endif
+
+#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
+
+#define max(a,b) ((a) > (b) ? (a) : (b))
+ 
+#ifdef LINUX_SCSI_PASSTHROUGH
+/* this is from <scsi/scsi_ioctl.h> */
+# define SCSI_IOCTL_SEND_COMMAND 1
+#endif
+
+#ifdef BUILD_CDDA
+int gen_cdda_init( struct wm_drive *d );
+#endif
+
+int	min_volume = 0;
+int	max_volume = 255;
+
+#ifdef OSS_SUPPORT
+int mixer;
+char mixer_dev_name[20] = "/dev/mixer";
+#endif
+
+/*-------------------------------------------------------*
+ *
+ *
+ *                   CD-ROM drive functions.
+ *
+ *
+ *-------------------------------------------------------*/
+
+/*--------------------------------------------------------*
+ * Initialize the drive.  A no-op for the generic driver.
+ *--------------------------------------------------------*/
+int
+gen_init( struct wm_drive *d )
+{
+  return (0);
+} /* gen_init() */
+
+/*---------------------------------------------------------------------------*
+ * Open the CD device and figure out what kind of drive is attached.
+ *---------------------------------------------------------------------------*/
+int
+wmcd_open( struct wm_drive *d )
+{
+  int fd;
+  char vendor[32], model[32], rev[32];
+
+  if (d->cd_device == NULL)
+    d->cd_device = DEFAULT_CD_DEVICE;
+
+
+  if (d->fd >= 0) { /* Device already open? */
+/*      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): [device is open (fd=%d)]\n", d->fd);*/
+      return (0);
+  }
+
+  fd = open(d->cd_device, O_RDONLY | O_NONBLOCK);
+  wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): device=%s fd=%d\n", d->cd_device, fd);
+  
+  if (fd < 0)
+    return -errno;
+
+  /* Now fill in the relevant parts of the wm_drive structure. */
+  d->fd = fd;
+
+  /*
+   * See if we can do digital audio.
+   */
+#if defined(BUILD_CDDA)
+  if(d->cdda && gen_cdda_init(d)) {
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): failed in gen_cdda_init\n");
+    gen_close(d);
+    return -1;
+  }
+#endif
+
+  /* Can we figure out the drive type? */
+  if (wm_scsi_get_drive_type(d, vendor, model, rev)) {
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): inquiry failed\n");
+    strcpy(vendor, "Generic");
+    strcpy(model, "drive type");
+    strcpy(rev, "");
+  }
+
+  if(find_drive_struct(vendor, model, rev) < 0) {
+    gen_close(d);
+    return -1;
+  }
+
+  if(d->proto->gen_init)
+    return (d->proto->gen_init)(d);
+
+  return 0;
+} /* wmcd_open() */
+
+/*
+ * Re-Open the device if it is open.
+ */
+int
+wmcd_reopen( struct wm_drive *d )
+{
+  int status;
+  int tries = 0;
+  
+  do {
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen\n");
+    gen_close(d);
+    wm_susleep( 1000 );
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calls wmcd_open()\n");
+    status = wmcd_open( d ); /* open it as usual */
+    wm_susleep( 1000 );
+    tries++;
+  } while ( (status != 0) && (tries < 10)  );
+  return status;
+} /* wmcd_reopen() */
+
+/*---------------------------------------------*
+ * Send an arbitrary SCSI command to a device.
+ *---------------------------------------------*/
+int
+wm_scsi( struct wm_drive *d, unsigned char *cdb, int cdblen,
+	 void *retbuf, int retbuflen, int getreply )
+{
+#ifdef LINUX_SCSI_PASSTHROUGH
+  
+  char *cmd;
+  int cmdsize;
+
+  cmdsize = 2 * sizeof(int);
+  if (retbuf)
+    {
+      if (getreply) cmdsize += max(cdblen, retbuflen);
+      else cmdsize += (cdblen + retbuflen);
+    }
+  else cmdsize += cdblen;
+  
+  cmd = malloc(cmdsize);
+  if (cmd == NULL)
+    return (-1);
+  
+  ((int*)cmd)[0] = cdblen + ((retbuf && !getreply) ? retbuflen : 0);
+  ((int*)cmd)[1] = ((retbuf && getreply) ? retbuflen : 0);
+  
+  memcpy(cmd + 2*sizeof(int), cdb, cdblen);
+  if (retbuf && !getreply)
+    memcpy(cmd + 2*sizeof(int) + cdblen, retbuf, retbuflen);
+  
+  if (ioctl(d->fd, SCSI_IOCTL_SEND_COMMAND, cmd))
+    {
+      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "%s: ioctl() failure\n", __FILE__);
+      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "command buffer is:\n");
+      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "%02x %02x %02x %02x %02x %02x\n",
+		     cmd[0],  cmd[1],  cmd[2],  cmd[3],  cmd[4],  cmd[5]);
+      free(cmd);
+      return (-1);
+    }
+  
+  if (retbuf && getreply)
+    memcpy(retbuf, cmd + 2*sizeof(int), retbuflen);
+  
+  free(cmd);
+  return 0;
+  
+#else /* Linux SCSI passthrough*/
+/*----------------------------------------*
+ * send packet over cdrom interface
+ * kernel >= 2.2.16
+ *----------------------------------------*/
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,2,15))	
+
+  struct cdrom_generic_command cdc;
+  struct request_sense sense;
+  int capability;
+
+  wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wm_scsi over CDROM_SEND_PACKET entered\n");
+
+  capability = ioctl(d->fd, CDROM_GET_CAPABILITY);
+
+  if(!(capability & CDC_GENERIC_PACKET))
+  {
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "your CDROM or/and kernel don't support CDC_GENERIC_PACKET ...\n");
+    return -1;
+  }
+
+  memset(&cdc, 0, sizeof(struct cdrom_generic_command));
+  memset(&sense, 0, sizeof(struct request_sense));
+	
+  memcpy(cdc.cmd, cdb, cdblen);
+
+  cdc.buffer = retbuf;
+  cdc.buflen = retbuflen;
+  cdc.stat = 0;
+  cdc.sense = &sense;
+  cdc.data_direction = getreply?CGC_DATA_READ:CGC_DATA_WRITE;
+
+  /* sendpacket_over_cdrom_interface() */
+  return ioctl(d->fd, CDROM_SEND_PACKET, &cdc);
+#endif /* CDROM_SEND_PACKET */
+  printf("ERROR: this binary was compiled without CDROM GENERIC PACKET SUPPORT. kernel version < 2.2.16?\n");
+  printf("ERROR: if you have a SCSI CDROM, rebuild it with a #define LINUX_SCSI_PASSTHROUGH\n");
+  return (-1);
+#endif
+} /* wm_scsi */
+
+int
+gen_close( struct wm_drive *d )
+{
+  if(d->fd != -1) {
+    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
+    close(d->fd);
+    d->fd = -1;
+  }
+  return 0;
+}
+
+/*--------------------------------*
+ * Keep the CD open all the time.
+ * disabled, analogous to 1.4b3
+ *--------------------------------*
+void
+keep_cd_open( void )
+{
+	int	fd;
+	struct flock	fl;
+	extern	end;
+
+
+	for (fd = 0; fd < 256; fd++)
+		close(fd);
+
+	if (fork())
+		exit(0);
+
+#if defined(O_NOFOLLOW)
+	if ((fd = open("/tmp/cd.lock", O_RDWR | O_CREAT | O_NOFOLLOW, 0666)) < 0)
+#else
+	if ((fd = open("/tmp/cd.lock", O_RDWR | O_CREAT, 0666)) < 0)
+#endif
+		exit(0);
+	fl.l_type = F_WRLCK;
+	fl.l_whence = 0;
+	fl.l_start = 0;
+	fl.l_len = 0;
+	if (fcntl(fd, F_SETLK, &fl) < 0)
+		exit(0);
+
+	if (open(cd_device, 0) >= 0)
+	{
+		brk(&end);
+		pause();
+	}
+
+	exit(0);
+}
+*/
+
+/*--------------------------------------------------------------------------*
+ * Get the current status of the drive: the current play mode, the absolute
+ * position from start of disc (in frames), and the current track and index
+ * numbers if the CD is playing or paused.
+ *--------------------------------------------------------------------------*/
+int
+gen_get_drive_status( struct wm_drive *d, int oldmode,
+  int *mode, int *pos, int *track, int *ind )
+{
+  struct cdrom_subchnl sc;
+  int ret;
+  
+#ifdef SBPCD_HACK
+  static int prevpos = 0;
+#endif
+  
+  
+  /* Is the device open? */
+  if (d->fd < 0) {
+    ret = wmcd_open(d);
+    if(ret < 0) /* error */
+      return ret;
+          
+    if(ret == 1) {
+      /* retry */
+      *mode = WM_CDM_UNKNOWN;
+      return 0;
+    }
+  }
+
+  /* Try to get rid of the door locking    */
+  /* Don't care about return value. If it  */
+  /* works - fine. If not - ...            */
+  ioctl(d->fd, CDROM_LOCKDOOR, 0); 
+  
+  *mode = WM_CDM_UNKNOWN;
+  
+  sc.cdsc_format = CDROM_MSF;
+ 
+#if defined(BUILD_CDDA)
+  IFCDDA(d) {
+    if(!cdda_get_drive_status(d, oldmode, mode, pos, track, ind)) {
+      if(*mode == WM_CDM_STOPPED)
+        *mode = WM_CDM_UNKNOWN; /* dont believe */
+    }
+  } else
+#endif
+  if(!ioctl(d->fd, CDROMSUBCHNL, &sc)) {
+    switch (sc.cdsc_audiostatus) {
+    case CDROM_AUDIO_PLAY:
+      *mode = WM_CDM_PLAYING;
+      *track = sc.cdsc_trk;
+      *ind = sc.cdsc_ind;
+      *pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
+        sc.cdsc_absaddr.msf.second * 75 +
+        sc.cdsc_absaddr.msf.frame;
+#ifdef SBPCD_HACK
+      if( *pos < prevpos ) {
+        if( (prevpos - *pos) < 75 ) {
+          *mode = WM_CDM_TRACK_DONE;
+        }
+      }
+    
+      prevpos = *pos;
+#endif
+      break;
+    
+    case CDROM_AUDIO_PAUSED:
+      if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED) {
+        *mode = WM_CDM_PAUSED;
+        *track = sc.cdsc_trk;
+        *ind = sc.cdsc_ind;
+        *pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
+          sc.cdsc_absaddr.msf.second * 75 +
+          sc.cdsc_absaddr.msf.frame;
+      } else
+        *mode = WM_CDM_STOPPED;
+      break;
+    
+    case CDROM_AUDIO_NO_STATUS:
+        *mode = WM_CDM_STOPPED;
+      break;
+
+    case CDROM_AUDIO_COMPLETED:
+      *mode = WM_CDM_TRACK_DONE; /* waiting for next track. */
+      break;
+    
+    case CDROM_AUDIO_INVALID: /**/
+    default:
+      *mode = WM_CDM_UNKNOWN;
+      break;
+    }
+  }
+  
+  if(WM_CDS_NO_DISC(*mode)) {
+    /* verify status of drive */
+    ret = ioctl(d->fd, CDROM_DRIVE_STATUS, 0/* slot */);
+    if(ret == CDS_DISC_OK)
+      ret = ioctl(d->fd, CDROM_DISC_STATUS, 0);
+    switch(ret) {
+    case CDS_NO_DISC:
+      *mode = WM_CDM_NO_DISC;
+      break;
+    case CDS_TRAY_OPEN:
+      *mode = WM_CDM_EJECTED;
+      break;
+    case CDS_AUDIO:
+    case CDS_MIXED:
+      *mode = WM_CDM_STOPPED;
+      break;
+    case CDS_DRIVE_NOT_READY:
+    case CDS_NO_INFO:
+    case CDS_DATA_1:
+    case CDS_DATA_2:
+    case CDS_XA_2_1:
+    case CDS_XA_2_2:
+    default:
+      *mode = WM_CDM_UNKNOWN;
+    }
+  }
+
+  return (0);
+} /* gen_get_drive_status */
+
+/*-------------------------------------*
+ * Get the number of tracks on the CD.
+ *-------------------------------------*/
+int
+gen_get_trackcount(struct wm_drive *d, int *tracks)
+{
+  struct cdrom_tochdr	hdr;
+  
+  if (ioctl(d->fd, CDROMREADTOCHDR, &hdr))
+    return (-1);
+  
+  *tracks = hdr.cdth_trk1;
+  return (0);
+} /* gen_get_trackcount() */
+
+/*---------------------------------------------------------*
+ * Get the start time and mode (data or audio) of a track.
+ *---------------------------------------------------------*/
+int
+gen_get_trackinfo(struct wm_drive *d, int track, int *data, int *startframe)
+{
+  struct cdrom_tocentry	entry;
+  
+  entry.cdte_track = track;
+  entry.cdte_format = CDROM_MSF;
+  
+  if (ioctl(d->fd, CDROMREADTOCENTRY, &entry))
+    return (-1);
+  
+  *startframe =	entry.cdte_addr.msf.minute * 60 * 75 +
+    entry.cdte_addr.msf.second * 75 +
+    entry.cdte_addr.msf.frame;
+  *data = entry.cdte_ctrl & CDROM_DATA_TRACK ? 1 : 0;
+  
+  return (0);
+}
+
+/*-------------------------------------*
+ * Get the number of frames on the CD.
+ *-------------------------------------*/
+int
+gen_get_cdlen(struct wm_drive *d, int *frames)
+{
+  int tmp;
+
+  return gen_get_trackinfo( d, CDROM_LEADOUT, &tmp, frames);
+} /* gen_get_cdlen() */
+
+
+/*------------------------------------------------------------*
+ * Play the CD from one position to another (both in frames.)
+ *------------------------------------------------------------*/
+int
+gen_play(struct wm_drive *d, int start, int end, int realstart)
+{
+  struct cdrom_msf msf;
+
+  CDDARETURN(d) cdda_play(d, start, end, realstart);
+
+  msf.cdmsf_min0 = start / (60*75);
+  msf.cdmsf_sec0 = (start % (60*75)) / 75;
+  msf.cdmsf_frame0 = start % 75;
+  msf.cdmsf_min1 = end / (60*75);
+  msf.cdmsf_sec1 = (end % (60*75)) / 75;
+  msf.cdmsf_frame1 = end % 75;
+  
+  if (ioctl(d->fd, CDROMPLAYMSF, &msf)) {
+    if (ioctl(d->fd, CDROMSTART))
+      return (-1);
+    if (ioctl(d->fd, CDROMPLAYMSF, &msf))
+      return (-2);
+  }
+  
+  /*
+   * I hope no drive gets really confused after CDROMSTART
+   * If so, I need to make this run-time configurable.
+   * 
+#ifndef FAST_IDE
+  if (ioctl( d->fd, CDROMSTART))
+      return (-1);
+#endif
+  if (ioctl( d->fd, CDROMPLAYMSF, &msf ))
+      return (-2);
+    */  
+
+  return (0);
+} /* gen_play() */
+
+/*---------------*
+ * Pause the CD.
+ *---------------*/
+int
+gen_pause(struct wm_drive *d)
+{
+  CDDARETURN(d) cdda_pause(d);
+  return (ioctl(d->fd, CDROMPAUSE));
+}
+
+/*-------------------------------------------------*
+ * Resume playing the CD (assuming it was paused.)
+ *-------------------------------------------------*/
+int
+gen_resume(struct wm_drive *d)
+{
+  CDDARETURN(d) cdda_pause(d);
+  return (ioctl(d->fd, CDROMRESUME));
+}
+
+/*--------------*
+ * Stop the CD.
+ *--------------*/
+int
+gen_stop(struct wm_drive *d)
+{
+  CDDARETURN(d) cdda_stop(d);
+  return (ioctl(d->fd, CDROMSTOP));
+}
+
+
+/*----------------------------------------*
+ * Eject the current CD, if there is one.
+ *----------------------------------------*/
+int
+gen_eject(struct wm_drive *d)
+{
+  struct stat	stbuf;
+#if !defined(BSD_MOUNTTEST)
+  struct ustat	ust;
+#else
+  struct mntent *mnt;
+  FILE *fp;
+#endif
+  
+  wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "ejecting?\n");
+
+  if (fstat(d->fd, &stbuf) != 0) {
+      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "that weird fstat() thingy\n");
+      return (-2);
+  }
+  
+  /* Is this a mounted filesystem? */
+#if !defined(BSD_MOUNTTEST)
+  if (ustat(stbuf.st_rdev, &ust) == 0)
+    return (-3);
+#else
+  /*
+   * This is the same test as in the WorkBone interface.
+   * I should eliminate it there, because there is no need
+   * for it in the UI
+   */ 
+  /* check if drive is mounted (from Mark Buckaway's cdplayer code) */
+  /* Changed it again (look at XPLAYCD from ????                    */
+  /* It's better to check the device name rather than one device is */
+  /* mounted as iso9660. That prevents "no playing" if you have more*/
+  /* than one CD-ROM, and one of them is mounted, but it's not the  */
+  /* audio CD                                              -dirk    */
+  if ((fp = setmntent (MOUNTED, "r")) == NULL)
+    {
+      wm_lib_message(WM_MSG_LEVEL_ERROR|WM_MSG_CLASS, "Could not open %s: %s\n", MOUNTED, strerror (errno));
+      return(-3);
+    }
+  while ((mnt = getmntent (fp)) != NULL)
+    {
+      if (strcmp (mnt->mnt_fsname, d->cd_device) == 0)
+	{
+	  wm_lib_message(WM_MSG_LEVEL_ERROR|WM_MSG_CLASS, "CDROM already mounted (according to mtab). Operation aborted.\n");
+	  endmntent (fp);
+	  return(-3);
+	}
+    }
+  endmntent (fp);
+#endif /* BSD_MOUNTTEST */
+ 
+  IFCDDA(d) {
+    cdda_eject(d);
+  }
+
+  ioctl( d->fd, CDROM_LOCKDOOR, 0 );
+
+  if (ioctl(d->fd, CDROMEJECT))
+    {
+      wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "eject failed (%s).\n", strerror(errno));
+      return (-1);
+    }
+    
+  /*------------------
+   * Things in "foobar_one" are left over from 1.4b3
+   * I put them here for further observation. In 1.4b3, however,
+   * that workaround didn't help at least for /dev/sbpcd
+   * (The tray closed just after ejecting because re-opening the
+   * device causes the tray to close)
+   *------------------*/
+#ifdef foobar_one 
+  extern int intermittent_dev
+    /*
+     * Some drives (drivers?) won't recognize a new CD if we leave the
+     * device open.
+     */
+    if (intermittent_dev)
+      gen_close(d);
+#endif
+  
+  return (0);
+} /* gen_eject() */
+
+/*----------------------------------------*
+ * Close the CD tray
+ *----------------------------------------*/
+
+int 
+gen_closetray(struct wm_drive *d)
+{
+#ifdef CAN_CLOSE
+#ifdef CDROMCLOSETRAY
+  wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "CDROMCLOSETRAY closing tray...\n");
+  if (ioctl(d->fd, CDROMCLOSETRAY))
+    return (-1);
+#else
+  wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen() closing tray...\n");
+  if(!gen_close(d))
+    {
+      return(wmcd_reopen(d));
+    } else {
+      return(-1);
+    }
+#endif /* CDROMCLOSETRAY */
+#endif /* CAN_CLOSE */
+  /* Always succeed if the drive can't close. */
+  return(0);
+} /* gen_closetray() */
+
+
+/*------------------------------------------------------------------------*
+ * scale_volume(vol, max)
+ *
+ * Return a volume value suitable for passing to the CD-ROM drive.  "vol"
+ * is a volume slider setting; "max" is the slider's maximum value.
+ * This is not used if sound card support is enabled.
+ *
+ *------------------------------------------------------------------------*/
+static int
+scale_volume( int vol, int max )
+{
+#ifdef CURVED_VOLUME
+  return ((max * max - (max - vol) * (max - vol)) *
+    (max_volume - min_volume) / (max * max) + min_volume);                        
+#else
+  return ((vol * (max_volume - min_volume)) / max + min_volume);
+#endif        
+} /* scale_volume() */
+
+static int
+unscale_volume( int vol, int max )
+{
+#ifdef CURVED_VOLUME
+  /* FIXME do it simpler */
+  int tmp = (((max_volume - min_volume - vol) * max * max) - (vol + min_volume));
+  return max - sqrt((tmp/(max_volume - min_volume)));                        
+#else
+  return (((vol - min_volume) * max) / (max_volume - min_volume));
+#endif        
+} /* unscale_volume() */
+
+/*---------------------------------------------------------------------*
+ * Set the volume level for the left and right channels.  Their values
+ * range from 0 to 100.
+ *---------------------------------------------------------------------*/
+int
+gen_set_volume( struct wm_drive *d, int left, int right )
+{
+  struct cdrom_volctrl v;
+  
+  CDDARETURN(d) cdda_set_volume(d, left, right);
+
+  /* Adjust the volume to make up for the CD-ROM drive's weirdness. */
+  left = scale_volume(left, 100);
+  right = scale_volume(right, 100);
+  
+  v.channel0 = v.channel2 = left < 0 ? 0 : left > 255 ? 255 : left;
+  v.channel1 = v.channel3 = right < 0 ? 0 : right > 255 ? 255 : right;
+  
+  return (ioctl(d->fd, CDROMVOLCTRL, &v));
+} /* gen_set_volume() */
+
+/*---------------------------------------------------------------------*
+ * Read the volume from the drive, if available.  Each channel
+ * ranges from 0 to 100, with -1 indicating data not available.
+ *---------------------------------------------------------------------*/
+int
+gen_get_volume( struct wm_drive *d, int *left, int *right )
+{
+  struct cdrom_volctrl v;
+  
+  CDDARETURN(d) cdda_get_volume(d, left, right);
+
+#if defined(CDROMVOLREAD)
+  if(!ioctl(d->fd, CDROMVOLREAD, &v)) {
+    *left = unscale_volume((v.channel0 + v.channel2)/2, 100);
+    *right = unscale_volume((v.channel1 + v.channel3)/2, 100);
+  } else
+#endif
+    /* Suns, HPs, Linux, NEWS can't read the volume; oh well */
+    *left = *right = -1;
+
+  return 0;
+} /* gen_get_volume() */
+
+/*------------------------------------------------------------------------*
+ * gen_get_cdtext(drive, buffer, lenght)
+ *
+ * Return a buffer with cdtext-stream. buffer will be allocated and filled
+ *
+ * needs send packet interface -> for IDE, linux at 2.2.16
+ * depends on scsi.c which depends on wm_scsi defined in here
+ * (which also takes care of IDE drives)
+ *------------------------------------------------------------------------*/
+
+int
+gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_lenght)
+{
+  return wm_scsi_get_cdtext(d, pp_buffer, p_buffer_lenght);
+} /* gen_get_cdtext() */
+
+#endif /* __linux__ */