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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /kscd/libwm/plat_linux.c
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
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
Diffstat (limited to 'kscd/libwm/plat_linux.c')
-rw-r--r--kscd/libwm/plat_linux.c803
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__ */