Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 5978 insertions, 0 deletions

diff --git a/drivers/cdrom/sbpcd.c b/drivers/cdrom/sbpcd.c
new file mode 100644
index 0000000..fc2c433
--- /dev/null
+++ b/drivers/cdrom/sbpcd.c
@@ -0,0 +1,5978 @@
+/*
+ *  sbpcd.c   CD-ROM device driver for the whole family of traditional,
+ *            non-ATAPI IDE-style Matsushita/Panasonic CR-5xx drives.
+ *            Works with SoundBlaster compatible cards and with "no-sound"
+ *            interface cards like Lasermate, Panasonic CI-101P, Teac, ...
+ *            Also for the Longshine LCS-7260 drive.
+ *            Also for the IBM "External ISA CD-Rom" drive.
+ *            Also for the CreativeLabs CD200 drive.
+ *            Also for the TEAC CD-55A drive.
+ *            Also for the ECS-AT "Vertos 100" drive.
+ *            Not for Sanyo drives (but for the H94A, sjcd is there...).
+ *            Not for any other Funai drives than the CD200 types (sometimes
+ *             labelled E2550UA or MK4015 or 2800F).
+ */
+
+#define VERSION "v4.63 Andrew J. Kroll <ag784@freenet.buffalo.edu> Wed Jul 26 04:24:10 EDT 2000"
+
+/*   Copyright (C) 1993, 1994, 1995  Eberhard Moenkeberg <emoenke@gwdg.de>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2, or (at your option)
+ *   any later version.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   (for example /usr/src/linux/COPYING); if not, write to the Free
+ *   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *   If you change this software, you should mail a .diff file with some
+ *   description lines to emoenke@gwdg.de. I want to know about it.
+ *
+ *   If you are the editor of a Linux CD, you should enable sbpcd.c within
+ *   your boot floppy kernel and send me one of your CDs for free.
+ *
+ *   If you would like to port the driver to an other operating system (f.e.
+ *   FreeBSD or NetBSD) or use it as an information source, you shall not be
+ *   restricted by the GPL under the following conditions:
+ *     a) the source code of your work is freely available
+ *     b) my part of the work gets mentioned at all places where your 
+ *        authorship gets mentioned
+ *     c) I receive a copy of your code together with a full installation
+ *        package of your operating system for free.
+ *
+ *
+ *  VERSION HISTORY
+ *
+ *  0.1  initial release, April/May 93, after mcd.c (Martin Harriss)
+ *
+ *  0.2  thek "repeat:"-loop in do_sbpcd_request did not check for
+ *       end-of-request_queue (resulting in kernel panic).
+ *       Flow control seems stable, but throughput is not better.  
+ *
+ *  0.3  interrupt locking totally eliminated (maybe "inb" and "outb"
+ *       are still locking) - 0.2 made keyboard-type-ahead losses.
+ *       check_sbpcd_media_change added (to use by isofs/inode.c)
+ *       - but it detects almost nothing.
+ *
+ *  0.4  use MAJOR 25 definitely.
+ *       Almost total re-design to support double-speed drives and
+ *       "naked" (no sound) interface cards ("LaserMate" interface type).
+ *       Flow control should be exact now.
+ *       Don't occupy the SbPro IRQ line (not needed either); will
+ *       live together with Hannu Savolainen's sndkit now.
+ *       Speeded up data transfer to 150 kB/sec, with help from Kai
+ *       Makisara, the "provider" of the "mt" tape utility.
+ *       Give "SpinUp" command if necessary.
+ *       First steps to support up to 4 drives (but currently only one).
+ *       Implemented audio capabilities - workman should work, xcdplayer
+ *       gives some problems.
+ *       This version is still consuming too much CPU time, and
+ *       sleeping still has to be worked on.
+ *       During "long" implied seeks, it seems possible that a 
+ *       ReadStatus command gets ignored. That gives the message
+ *       "ResponseStatus timed out" (happens about 6 times here during
+ *       a "ls -alR" of the YGGDRASIL LGX-Beta CD). Such a case is
+ *       handled without data error, but it should get done better.
+ *
+ *  0.5  Free CPU during waits (again with help from Kai Makisara).
+ *       Made it work together with the LILO/kernel setup standard.
+ *       Included auto-probing code, as suggested by YGGDRASIL.
+ *       Formal redesign to add DDI debugging.
+ *       There are still flaws in IOCTL (workman with double speed drive).
+ *
+ *  1.0  Added support for all drive IDs (0...3, no longer only 0)
+ *       and up to 4 drives on one controller.
+ *       Added "#define MANY_SESSION" for "old" multi session CDs.
+ *
+ *  1.1  Do SpinUp for new drives, too.
+ *       Revised for clean compile under "old" kernels (0.99pl9).
+ *
+ *  1.2  Found the "workman with double-speed drive" bug: use the driver's
+ *       audio_state, not what the drive is reporting with ReadSubQ.
+ *
+ *  1.3  Minor cleanups.
+ *       Refinements regarding Workman.
+ *
+ *  1.4  Read XA disks (PhotoCDs) with "old" drives, too (but only the first
+ *       session - no chance to fully access a "multi-session" CD).
+ *       This currently still is too slow (50 kB/sec) - but possibly
+ *       the old drives won't do it faster.
+ *       Implemented "door (un)lock" for new drives (still does not work
+ *       as wanted - no lock possible after an unlock).
+ *       Added some debugging printout for the UPC/EAN code - but my drives 
+ *       return only zeroes. Is there no UPC/EAN code written?
+ *
+ *  1.5  Laborate with UPC/EAN code (not better yet).
+ *       Adapt to kernel 1.1.8 change (have to explicitly include
+ *       <linux/string.h> now).
+ *
+ *  1.6  Trying to read audio frames as data. Impossible with the current
+ *       drive firmware levels, as it seems. Awaiting any hint. ;-)
+ *       Changed "door unlock": repeat it until success.
+ *       Changed CDROMSTOP routine (stop somewhat "softer" so that Workman
+ *       won't get confused).
+ *       Added a third interface type: Sequoia S-1000, as used with the SPEA
+ *       Media FX sound card. This interface (usable for Sony and Mitsumi 
+ *       drives, too) needs a special configuration setup and behaves like a 
+ *       LaserMate type after that. Still experimental - I do not have such
+ *       an interface.
+ *       Use the "variable BLOCK_SIZE" feature (2048). But it does only work
+ *       if you give the mount option "block=2048".
+ *       The media_check routine is currently disabled; now that it gets
+ *       called as it should I fear it must get synchronized for not to
+ *       disturb the normal driver's activity.
+ *
+ *  2.0  Version number bumped - two reasons:
+ *       - reading audio tracks as data works now with CR-562 and CR-563. We
+ *       currently do it by an IOCTL (yet has to get standardized), one frame
+ *       at a time; that is pretty slow. But it works.
+ *       - we are maintaining now up to 4 interfaces (each up to 4 drives):
+ *       did it the easy way - a different MAJOR (25, 26, ...) and a different
+ *       copy of the driver (sbpcd.c, sbpcd2.c, sbpcd3.c, sbpcd4.c - only
+ *       distinguished by the value of SBPCD_ISSUE and the driver's name),
+ *       and a common sbpcd.h file.
+ *       Bettered the "ReadCapacity error" problem with old CR-52x drives (the
+ *       drives sometimes need a manual "eject/insert" before work): just
+ *       reset the drive and do again. Needs lots of resets here and sometimes
+ *       that does not cure, so this can't be the solution.
+ *
+ *  2.1  Found bug with multisession CDs (accessing frame 16).
+ *       "read audio" works now with address type CDROM_MSF, too.
+ *       Bigger audio frame buffer: allows reading max. 4 frames at time; this
+ *       gives a significant speedup, but reading more than one frame at once
+ *       gives missing chunks at each single frame boundary.
+ *
+ *  2.2  Kernel interface cleanups: timers, init, setup, media check.
+ *
+ *  2.3  Let "door lock" and "eject" live together.
+ *       Implemented "close tray" (done automatically during open).
+ *
+ *  2.4  Use different names for device registering.
+ *
+ *  2.5  Added "#if EJECT" code (default: enabled) to automatically eject
+ *       the tray during last call to "sbpcd_release".
+ *       Added "#if JUKEBOX" code (default: disabled) to automatically eject
+ *       the tray during call to "sbpcd_open" if no disk is in.
+ *       Turn on the CD volume of "compatible" sound cards, too; just define
+ *       SOUND_BASE (in sbpcd.h) accordingly (default: disabled).
+ *
+ *  2.6  Nothing new.  
+ *
+ *  2.7  Added CDROMEJECT_SW ioctl to set the "EJECT" behavior on the fly:
+ *       0 disables, 1 enables auto-ejecting. Useful to keep the tray in
+ *       during shutdown.
+ *
+ *  2.8  Added first support (still BETA, I need feedback or a drive) for
+ *       the Longshine LCS-7260 drives. They appear as double-speed drives
+ *       using the "old" command scheme, extended by tray control and door
+ *       lock functions.
+ *       Found (and fixed preliminary) a flaw with some multisession CDs: we
+ *       have to re-direct not only the accesses to frame 16 (the isofs
+ *       routines drive it up to max. 100), but also those to the continuation
+ *       (repetition) frames (as far as they exist - currently set fix as
+ *       16..20).
+ *       Changed default of the "JUKEBOX" define. If you use this default,
+ *       your tray will eject if you try to mount without a disk in. Next
+ *       mount command will insert the tray - so, just fill in a disk. ;-)
+ *
+ *  2.9  Fulfilled the Longshine LCS-7260 support; with great help and
+ *       experiments by Serge Robyns.
+ *       First attempts to support the TEAC CD-55A drives; but still not
+ *       usable yet.
+ *       Implemented the CDROMMULTISESSION ioctl; this is an attempt to handle
+ *       multi session CDs more "transparent" (redirection handling has to be
+ *       done within the isofs routines, and only for the special purpose of
+ *       obtaining the "right" volume descriptor; accesses to the raw device
+ *       should not get redirected).
+ *
+ *  3.0  Just a "normal" increment, with some provisions to do it better. ;-)
+ *       Introduced "#define READ_AUDIO" to specify the maximum number of 
+ *       audio frames to grab with one request. This defines a buffer size
+ *       within kernel space; a value of 0 will reserve no such space and
+ *       disable the CDROMREADAUDIO ioctl. A value of 75 enables the reading
+ *       of a whole second with one command, but will use a buffer of more
+ *       than 172 kB.
+ *       Started CD200 support. Drive detection should work, but nothing
+ *       more.
+ *
+ *  3.1  Working to support the CD200 and the Teac CD-55A drives.
+ *       AT-BUS style device numbering no longer used: use SCSI style now.
+ *       So, the first "found" device has MINOR 0, regardless of the
+ *       jumpered drive ID. This implies modifications to the /dev/sbpcd*
+ *       entries for some people, but will help the DAU (german TLA, english:
+ *       "newbie", maybe ;-) to install his "first" system from a CD.
+ *
+ *  3.2  Still testing with CD200 and CD-55A drives.
+ *
+ *  3.3  Working with CD200 support.
+ *
+ *  3.4  Auto-probing stops if an address of 0 is seen (to be entered with
+ *       the kernel command line).
+ *       Made the driver "loadable". If used as a module, "audio copy" is
+ *       disabled, and the internal read ahead data buffer has a reduced size
+ *       of 4 kB; so, throughput may be reduced a little bit with slow CPUs.
+ *
+ *  3.5  Provisions to handle weird photoCDs which have an interrupted
+ *       "formatting" immediately after the last frames of some files: simply
+ *       never "read ahead" with MultiSession CDs. By this, CPU usage may be
+ *       increased with those CDs, and there may be a loss in speed.
+ *       Re-structured the messaging system.
+ *       The "loadable" version no longer has a limited READ_AUDIO buffer
+ *       size.
+ *       Removed "MANY_SESSION" handling for "old" multi session CDs.
+ *       Added "private" IOCTLs CDROMRESET and CDROMVOLREAD.
+ *       Started again to support the TEAC CD-55A drives, now that I found
+ *       the money for "my own" drive. ;-)
+ *       The TEAC CD-55A support is fairly working now.
+ *       I have measured that the drive "delivers" at 600 kB/sec (even with
+ *       bigger requests than the drive's 64 kB buffer can satisfy), but
+ *       the "real" rate does not exceed 520 kB/sec at the moment. 
+ *       Caused by the various changes to build in TEAC support, the timed
+ *       loops are de-optimized at the moment (less throughput with CR-52x
+ *       drives, and the TEAC will give speed only with SBP_BUFFER_FRAMES 64).
+ *
+ *  3.6  Fixed TEAC data read problems with SbPro interfaces.
+ *       Initial size of the READ_AUDIO buffer is 0. Can get set to any size
+ *       during runtime.
+ *
+ *  3.7  Introduced MAX_DRIVES for some poor interface cards (seen with TEAC
+ *       drives) which allow only one drive (ID 0); this avoids repetitive
+ *       detection under IDs 1..3. 
+ *       Elongated cmd_out_T response waiting; necessary for photo CDs with
+ *       a lot of sessions.
+ *       Bettered the sbpcd_open() behavior with TEAC drives.
+ *
+ *  3.8  Elongated max_latency for CR-56x drives.
+ *
+ *  3.9  Finally fixed the long-known SoundScape/SPEA/Sequoia S-1000 interface
+ *       configuration bug.
+ *       Now Corey, Heiko, Ken, Leo, Vadim/Eric & Werner are invited to copy
+ *       the config_spea() routine into their drivers. ;-)
+ *
+ *  4.0  No "big step" - normal version increment.
+ *       Adapted the benefits from 1.3.33.
+ *       Fiddled with CDROMREADAUDIO flaws.
+ *       Avoid ReadCapacity command with CD200 drives (the MKE 1.01 version
+ *       seems not to support it).
+ *       Fulfilled "read audio" for CD200 drives, with help of Pete Heist
+ *       (heistp@rpi.edu).
+ *
+ *  4.1  Use loglevel KERN_INFO with printk().
+ *       Added support for "Vertos 100" drive ("ECS-AT") - it is very similar
+ *       to the Longshine LCS-7260. Give feedback if you can - I never saw
+ *       such a drive, and I have no specs.
+ *
+ *  4.2  Support for Teac 16-bit interface cards. Can't get auto-detected,
+ *       so you have to jumper your card to 0x2C0. Still not 100% - come
+ *       in contact if you can give qualified feedback.
+ *       Use loglevel KERN_NOTICE with printk(). If you get annoyed by a
+ *       flood of unwanted messages and the accompanied delay, try to read
+ *       my documentation. Especially the Linux CDROM drivers have to do an
+ *       important job for the newcomers, so the "distributed" version has
+ *       to fit some special needs. Since generations, the flood of messages
+ *       is user-configurable (even at runtime), but to get aware of this, one
+ *       needs a special mental quality: the ability to read.
+ *       
+ *  4.3  CD200F does not like to receive a command while the drive is
+ *       reading the ToC; still trying to solve it.
+ *       Removed some redundant verify_area calls (yes, Heiko Eissfeldt
+ *       is visiting all the Linux CDROM drivers ;-).
+ *       
+ *  4.4  Adapted one idea from tiensivu@pilot.msu.edu's "stripping-down"
+ *       experiments: "KLOGD_PAUSE".
+ *       Inhibited "play audio" attempts with data CDs. Provisions for a
+ *       "data-safe" handling of "mixed" (data plus audio) Cds.
+ *
+ *  4.5  Meanwhile Gonzalo Tornaria <tornaria@cmat.edu.uy> (GTL) built a
+ *       special end_request routine: we seem to have to take care for not
+ *       to have two processes working at the request list. My understanding
+ *       was and is that ll_rw_blk should not call do_sbpcd_request as long
+ *       as there is still one call active (the first call will care for all
+ *       outstanding I/Os, and if a second call happens, that is a bug in
+ *       ll_rw_blk.c).
+ *       "Check media change" without touching any drive.
+ *
+ *  4.6  Use a semaphore to synchronize multi-activity; elaborated by Rob
+ *       Riggs <rriggs@tesser.com>. At the moment, we simply block "read"
+ *       against "ioctl" and vice versa. This could be refined further, but
+ *       I guess with almost no performance increase.
+ *       Experiments to speed up the CD-55A; again with help of Rob Riggs
+ *       (to be true, he gave both, idea & code. ;-)
+ *
+ *  4.61 Ported to Uniform CD-ROM driver by 
+ *       Heiko Eissfeldt <heiko@colossus.escape.de> with additional
+ *       changes by Erik Andersen <andersee@debian.org>
+ *
+ *  4.62 Fix a bug where playing audio left the drive in an unusable state.
+ *         Heiko Eissfeldt <heiko@colossus.escape.de>
+ *
+ *  November 1999 -- Make kernel-parameter implementation work with 2.3.x 
+ *	             Removed init_module & cleanup_module in favor of 
+ *	             module_init & module_exit.
+ *	             Torben Mathiasen <tmm@image.dk>
+ *
+ *  4.63 Bug fixes for audio annoyances, new legacy CDROM maintainer.
+ *		Annoying things fixed:
+ *		TOC reread on automated disk changes
+ *		TOC reread on manual cd changes
+ *		Play IOCTL tries to play CD before it's actually ready... sometimes.
+ *		CD_AUDIO_COMPLETED state so workman (and other playes) can repeat play.
+ *		Andrew J. Kroll <ag784@freenet.buffalo.edu> Wed Jul 26 04:24:10 EDT 2000
+ *
+ *  4.64 Fix module parameters - were being completely ignored.
+ *	 Can also specify max_drives=N as a setup int to get rid of
+ *	 "ghost" drives on crap hardware (aren't they all?)   Paul Gortmaker
+ *
+ *  TODO
+ *     implement "read all subchannel data" (96 bytes per frame)
+ *     remove alot of the virtual status bits and deal with hardware status
+ *     move the change of cd for audio to a better place
+ *     add debug levels to insmod parameters (trivial)
+ *
+ *     special thanks to Kai Makisara (kai.makisara@vtt.fi) for his fine
+ *     elaborated speed-up experiments (and the fabulous results!), for
+ *     the "push" towards load-free wait loops, and for the extensive mail
+ *     thread which brought additional hints and bug fixes.
+ *
+ */
+
+/*
+ * Trying to merge requests breaks this driver horribly (as in it goes
+ * boom and apparently has done so since 2.3.41).  As it is a legacy
+ * driver for a horribly slow double speed CD on a hideous interface
+ * designed for polled operation, I won't lose any sleep in simply
+ * disallowing merging.				Paul G.  02/2001
+ *
+ * Thu May 30 14:14:47 CEST 2002:
+ *
+ * I have presumably found the reson for the above - there was a bogous
+ * end_request substitute, which was manipulating the request queues
+ * incorrectly. If someone has access to the actual hardware, and it's
+ * still operations - well  please free to test it.
+ *
+ * Marcin Dalecki
+ */
+
+/*
+ * Add bio/kdev_t changes for 2.5.x required to make it work again. 
+ * Still room for improvement in the request handling here if anyone
+ * actually cares.  Bring your own chainsaw.    Paul G.  02/2002
+ */
+
+
+#include <linux/module.h>
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/timer.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/cdrom.h>
+#include <linux/ioport.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/major.h>
+#include <linux/string.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <stdarg.h>
+#include <linux/config.h>
+#include "sbpcd.h"
+
+#define MAJOR_NR MATSUSHITA_CDROM_MAJOR
+#include <linux/blkdev.h>
+
+/*==========================================================================*/
+#if SBPCD_DIS_IRQ
+# define SBPCD_CLI cli()
+# define SBPCD_STI sti()
+#else
+# define SBPCD_CLI
+# define SBPCD_STI
+#endif
+
+/*==========================================================================*/
+/*
+ * auto-probing address list
+ * inspired by Adam J. Richter from Yggdrasil
+ *
+ * still not good enough - can cause a hang.
+ *   example: a NE 2000 ethernet card at 300 will cause a hang probing 310.
+ * if that happens, reboot and use the LILO (kernel) command line.
+ * The possibly conflicting ethernet card addresses get NOT probed 
+ * by default - to minimize the hang possibilities. 
+ *
+ * The SB Pro addresses get "mirrored" at 0x6xx and some more locations - to
+ * avoid a type error, the 0x2xx-addresses must get checked before 0x6xx.
+ *
+ * send mail to emoenke@gwdg.de if your interface card is not FULLY
+ * represented here.
+ */
+static int sbpcd[] =
+{
+	CDROM_PORT, SBPRO, /* probe with user's setup first */
+#if DISTRIBUTION
+	0x230, 1, /* Soundblaster Pro and 16 (default) */
+#if 0
+	0x300, 0, /* CI-101P (default), WDH-7001C (default),
+		     Galaxy (default), Reveal (one default) */
+	0x250, 1, /* OmniCD default, Soundblaster Pro and 16 */
+	0x2C0, 3, /* Teac 16-bit cards */
+	0x260, 1, /* OmniCD */
+	0x320, 0, /* Lasermate, CI-101P, WDH-7001C, Galaxy, Reveal (other default),
+		     Longshine LCS-6853 (default) */
+	0x338, 0, /* Reveal Sound Wave 32 card model #SC600 */
+	0x340, 0, /* Mozart sound card (default), Lasermate, CI-101P */
+	0x360, 0, /* Lasermate, CI-101P */
+	0x270, 1, /* Soundblaster 16 */
+	0x670, 0, /* "sound card #9" */
+	0x690, 0, /* "sound card #9" */
+	0x338, 2, /* SPEA Media FX, Ensonic SoundScape (default) */
+	0x328, 2, /* SPEA Media FX */
+	0x348, 2, /* SPEA Media FX */
+	0x634, 0, /* some newer sound cards */
+	0x638, 0, /* some newer sound cards */
+	0x230, 1, /* some newer sound cards */
+	/* due to incomplete address decoding of the SbPro card, these must be last */
+	0x630, 0, /* "sound card #9" (default) */
+	0x650, 0, /* "sound card #9" */
+#ifdef MODULE
+	/*
+	 * some "hazardous" locations (no harm with the loadable version)
+	 * (will stop the bus if a NE2000 ethernet card resides at offset -0x10)
+	 */
+	0x330, 0, /* Lasermate, CI-101P, WDH-7001C */
+	0x350, 0, /* Lasermate, CI-101P */
+	0x358, 2, /* SPEA Media FX */
+	0x370, 0, /* Lasermate, CI-101P */
+	0x290, 1, /* Soundblaster 16 */
+	0x310, 0, /* Lasermate, CI-101P, WDH-7001C */
+#endif /* MODULE */
+#endif
+#endif /* DISTRIBUTION */
+};
+
+/*
+ * Protects access to global structures etc.
+ */
+static  __cacheline_aligned DEFINE_SPINLOCK(sbpcd_lock);
+static struct request_queue *sbpcd_queue;
+
+MODULE_PARM(sbpcd, "2i");
+MODULE_PARM(max_drives, "i");
+
+#define NUM_PROBE  (sizeof(sbpcd) / sizeof(int))
+
+/*==========================================================================*/
+
+#define INLINE inline
+
+/*==========================================================================*/
+/*
+ * the forward references:
+ */
+static void sbp_sleep(u_int);
+static void mark_timeout_delay(u_long);
+static void mark_timeout_data(u_long);
+#if 0
+static void mark_timeout_audio(u_long);
+#endif
+static void sbp_read_cmd(struct request *req);
+static int sbp_data(struct request *req);
+static int cmd_out(void);
+static int DiskInfo(void);
+
+/*==========================================================================*/
+
+/*
+ * pattern for printk selection:
+ *
+ * (1<<DBG_INF)  necessary information
+ * (1<<DBG_BSZ)  BLOCK_SIZE trace
+ * (1<<DBG_REA)  "read" status trace
+ * (1<<DBG_CHK)  "media check" trace
+ * (1<<DBG_TIM)  datarate timer test
+ * (1<<DBG_INI)  initialization trace
+ * (1<<DBG_TOC)  tell TocEntry values
+ * (1<<DBG_IOC)  ioctl trace
+ * (1<<DBG_STA)  "ResponseStatus" trace
+ * (1<<DBG_ERR)  "cc_ReadError" trace
+ * (1<<DBG_CMD)  "cmd_out" trace
+ * (1<<DBG_WRN)  give explanation before auto-probing
+ * (1<<DBG_MUL)  multi session code test
+ * (1<<DBG_IDX)  "drive_id != 0" test code
+ * (1<<DBG_IOX)  some special information
+ * (1<<DBG_DID)  drive ID test
+ * (1<<DBG_RES)  drive reset info
+ * (1<<DBG_SPI)  SpinUp test info
+ * (1<<DBG_IOS)  ioctl trace: "subchannel"
+ * (1<<DBG_IO2)  ioctl trace: general
+ * (1<<DBG_UPC)  show UPC info
+ * (1<<DBG_XA1)  XA mode debugging
+ * (1<<DBG_LCK)  door (un)lock info
+ * (1<<DBG_SQ1)   dump SubQ frame
+ * (1<<DBG_AUD)  "read audio" debugging
+ * (1<<DBG_SEQ)  Sequoia interface configuration trace
+ * (1<<DBG_LCS)  Longshine LCS-7260 debugging trace
+ * (1<<DBG_CD2)  MKE/Funai CD200 debugging trace
+ * (1<<DBG_TEA)  TEAC CD-55A debugging trace
+ * (1<<DBG_ECS)  ECS-AT (Vertos-100) debugging trace
+ * (1<<DBG_000)  unnecessary information
+ */
+#if DISTRIBUTION
+static int sbpcd_debug = (1<<DBG_INF);
+#else
+static int sbpcd_debug = 0 & ((1<<DBG_INF) |
+			  (1<<DBG_TOC) |
+			  (1<<DBG_MUL) |
+			  (1<<DBG_UPC));
+#endif /* DISTRIBUTION */
+
+static int sbpcd_ioaddr = CDROM_PORT;	/* default I/O base address */
+static int sbpro_type = SBPRO;
+static unsigned char f_16bit;
+static unsigned char do_16bit;
+static int CDo_command, CDo_reset;
+static int CDo_sel_i_d, CDo_enable;
+static int CDi_info, CDi_status, CDi_data;
+static struct cdrom_msf msf;
+static struct cdrom_ti ti;
+static struct cdrom_tochdr tochdr;
+static struct cdrom_tocentry tocentry;
+static struct cdrom_subchnl SC;
+static struct cdrom_volctrl volctrl;
+static struct cdrom_read_audio read_audio;
+
+static unsigned char msgnum;
+static char msgbuf[80];
+
+static int max_drives = MAX_DRIVES;
+#ifndef MODULE
+static unsigned char setup_done;
+static const char *str_sb_l = "soundblaster";
+static const char *str_sp_l = "spea";
+static const char *str_ss_l = "soundscape";
+static const char *str_t16_l = "teac16bit";
+static const char *str_ss = "SoundScape";
+#endif
+static const char *str_sb = "SoundBlaster";
+static const char *str_lm = "LaserMate";
+static const char *str_sp = "SPEA";
+static const char *str_t16 = "Teac16bit";
+static const char *type;
+static const char *major_name="sbpcd";
+
+/*==========================================================================*/
+
+#ifdef FUTURE
+static DECLARE_WAIT_QUEUE_HEAD(sbp_waitq);
+#endif /* FUTURE */
+
+static int teac=SBP_TEAC_SPEED;
+static int buffers=SBP_BUFFER_FRAMES;
+
+static u_char family0[]="MATSHITA"; /* MKE CR-521, CR-522, CR-523 */
+static u_char family1[]="CR-56";    /* MKE CR-562, CR-563 */
+static u_char family2[]="CD200";    /* MKE CD200, Funai CD200F */
+static u_char familyL[]="LCS-7260"; /* Longshine LCS-7260 */
+static u_char familyT[]="CD-55";    /* TEAC CD-55A */
+static u_char familyV[]="ECS-AT";   /* ECS Vertos 100 */
+
+static u_int recursion; /* internal testing only */
+static u_int fatal_err; /* internal testing only */
+static u_int response_count;
+static u_int flags_cmd_out;
+static u_char cmd_type;
+static u_char drvcmd[10];
+static u_char infobuf[20];
+static u_char xa_head_buf[CD_XA_HEAD];
+static u_char xa_tail_buf[CD_XA_TAIL];
+
+#if OLD_BUSY
+static volatile u_char busy_data;
+static volatile u_char busy_audio; /* true semaphores would be safer */
+#endif /* OLD_BUSY */ 
+static DECLARE_MUTEX(ioctl_read_sem);
+static u_long timeout;
+static volatile u_char timed_out_delay;
+static volatile u_char timed_out_data;
+#if 0
+static volatile u_char timed_out_audio;
+#endif
+static u_int datarate= 1000000;
+static u_int maxtim16=16000000;
+static u_int maxtim04= 4000000;
+static u_int maxtim02= 2000000;
+static u_int maxtim_8=   30000;
+#if LONG_TIMING
+static u_int maxtim_data= 9000;
+#else
+static u_int maxtim_data= 3000;
+#endif /* LONG_TIMING */ 
+#if DISTRIBUTION
+static int n_retries=6;
+#else
+static int n_retries=6;
+#endif
+/*==========================================================================*/
+
+static int ndrives;
+static u_char drv_pattern[NR_SBPCD]={speed_auto,speed_auto,speed_auto,speed_auto};
+
+/*==========================================================================*/
+/*
+ * drive space begins here (needed separate for each unit) 
+ */
+static struct sbpcd_drive {
+	char drv_id;           /* "jumpered" drive ID or -1 */
+	char drv_sel;          /* drive select lines bits */
+	
+	char drive_model[9];
+	u_char firmware_version[4];
+	char f_eject;          /* auto-eject flag: 0 or 1 */
+	u_char *sbp_buf;       /* Pointer to internal data buffer,
+				  space allocated during sbpcd_init() */
+	u_int sbp_bufsiz;      /* size of sbp_buf (# of frames) */
+	int sbp_first_frame;   /* First frame in buffer */
+	int sbp_last_frame;    /* Last frame in buffer  */
+	int sbp_read_frames;   /* Number of frames being read to buffer */
+	int sbp_current;       /* Frame being currently read */
+	
+	u_char mode;           /* read_mode: READ_M1, READ_M2, READ_SC, READ_AU */
+	u_char *aud_buf;       /* Pointer to audio data buffer,
+				  space allocated during sbpcd_init() */
+	u_int sbp_audsiz;      /* size of aud_buf (# of raw frames) */
+	u_int drv_type;
+	u_char drv_options;
+	int status_bits;
+	u_char diskstate_flags;
+	u_char sense_byte;
+	
+	u_char CD_changed;
+	char open_count;
+	u_char error_byte;
+	
+	u_char f_multisession;
+	u_int lba_multi;
+	int first_session;
+	int last_session;
+	int track_of_last_session;
+	
+	u_char audio_state;
+	u_int pos_audio_start;
+	u_int pos_audio_end;
+	char vol_chan0;
+	u_char vol_ctrl0;
+	char vol_chan1;
+	u_char vol_ctrl1;
+#if 000 /* no supported drive has it */
+	char vol_chan2;
+	u_char vol_ctrl2;
+	char vol_chan3;
+	u_char vol_ctrl3;
+#endif /*000 */
+	u_char volume_control; /* TEAC on/off bits */
+	
+	u_char SubQ_ctl_adr;
+	u_char SubQ_trk;
+	u_char SubQ_pnt_idx;
+	u_int SubQ_run_tot;
+	u_int SubQ_run_trk;
+	u_char SubQ_whatisthis;
+	
+	u_char UPC_ctl_adr;
+	u_char UPC_buf[7];
+	
+	int frame_size;
+	int CDsize_frm;
+	
+	u_char xa_byte; /* 0x20: XA capabilities */
+	u_char n_first_track; /* binary */
+	u_char n_last_track; /* binary (not bcd), 0x01...0x63 */
+	u_int size_msf; /* time of whole CD, position of LeadOut track */
+	u_int size_blk;
+	
+	u_char TocEnt_nixbyte; /* em */
+	u_char TocEnt_ctl_adr;
+	u_char TocEnt_number;
+	u_char TocEnt_format; /* em */
+	u_int TocEnt_address;
+#ifdef SAFE_MIXED
+	char has_data;
+#endif /* SAFE_MIXED */ 
+	u_char ored_ctl_adr; /* to detect if CDROM contains data tracks */
+	
+	struct {
+		u_char nixbyte; /* em */
+		u_char ctl_adr; /* 0x4x: data, 0x0x: audio */
+		u_char number;
+		u_char format; /* em */ /* 0x00: lba, 0x01: msf */
+		u_int address;
+	} TocBuffer[MAX_TRACKS+1]; /* last entry faked */ 
+	
+	int in_SpinUp; /* CR-52x test flag */
+	int n_bytes; /* TEAC awaited response count */
+	u_char error_state, b3, b4; /* TEAC command error state */
+	u_char f_drv_error; /* TEAC command error flag */
+	u_char speed_byte;
+	int frmsiz;
+	u_char f_XA; /* 1: XA */
+	u_char type_byte; /* 0, 1, 3 */
+	u_char mode_xb_6;
+	u_char mode_yb_7;
+	u_char mode_xb_8;
+	u_char delay;
+	struct cdrom_device_info *sbpcd_infop;
+	struct gendisk *disk;
+} D_S[NR_SBPCD];
+
+static struct sbpcd_drive *current_drive = D_S;
+
+/*
+ * drive space ends here (needed separate for each unit)
+ */
+/*==========================================================================*/
+#if 0
+unsigned long cli_sti; /* for saving the processor flags */
+#endif
+/*==========================================================================*/
+static struct timer_list delay_timer =
+		TIMER_INITIALIZER(mark_timeout_delay, 0, 0);
+static struct timer_list data_timer =
+		TIMER_INITIALIZER(mark_timeout_data, 0, 0);
+#if 0
+static struct timer_list audio_timer =
+		TIMER_INITIALIZER(mark_timeout_audio, 0, 0);
+#endif
+/*==========================================================================*/
+/*
+ * DDI interface
+ */
+static void msg(int level, const char *fmt, ...)
+{
+#if DISTRIBUTION
+#define MSG_LEVEL KERN_NOTICE
+#else
+#define MSG_LEVEL KERN_INFO
+#endif /* DISTRIBUTION */
+
+	char buf[256];
+	va_list args;
+	
+	if (!(sbpcd_debug&(1<<level))) return;
+	
+	msgnum++;
+	if (msgnum>99) msgnum=0;
+	sprintf(buf, MSG_LEVEL "%s-%d [%02d]:  ", major_name, current_drive - D_S, msgnum);
+	va_start(args, fmt);
+	vsprintf(&buf[18], fmt, args);
+	va_end(args);
+	printk(buf);
+#if KLOGD_PAUSE
+	sbp_sleep(KLOGD_PAUSE); /* else messages get lost */
+#endif /* KLOGD_PAUSE */ 
+	return;
+}
+/*==========================================================================*/
+/*
+ * DDI interface: runtime trace bit pattern maintenance
+ */
+static int sbpcd_dbg_ioctl(unsigned long arg, int level)
+{
+	switch(arg)
+	{
+	case 0:	/* OFF */
+		sbpcd_debug = DBG_INF;
+		break;
+		
+	default:
+		if (arg>=128) sbpcd_debug &= ~(1<<(arg-128));
+		else sbpcd_debug |= (1<<arg);
+	}
+	return (arg);
+}
+/*==========================================================================*/
+static void mark_timeout_delay(u_long i)
+{
+	timed_out_delay=1;
+#if 0
+	msg(DBG_TIM,"delay timer expired.\n");
+#endif
+}
+/*==========================================================================*/
+static void mark_timeout_data(u_long i)
+{
+	timed_out_data=1;
+#if 0
+	msg(DBG_TIM,"data timer expired.\n");
+#endif
+}
+/*==========================================================================*/
+#if 0
+static void mark_timeout_audio(u_long i)
+{
+	timed_out_audio=1;
+#if 0
+	msg(DBG_TIM,"audio timer expired.\n");
+#endif
+}
+#endif
+/*==========================================================================*/
+/*
+ * Wait a little while (used for polling the drive).
+ */
+static void sbp_sleep(u_int time)
+{
+	sti();
+	current->state = TASK_INTERRUPTIBLE;
+	schedule_timeout(time);
+	sti();
+}
+/*==========================================================================*/
+#define RETURN_UP(rc) {up(&ioctl_read_sem); return(rc);}
+/*==========================================================================*/
+/*
+ *  convert logical_block_address to m-s-f_number (3 bytes only)
+ */
+static INLINE void lba2msf(int lba, u_char *msf)
+{
+	lba += CD_MSF_OFFSET;
+	msf[0] = lba / (CD_SECS*CD_FRAMES);
+	lba %= CD_SECS*CD_FRAMES;
+	msf[1] = lba / CD_FRAMES;
+	msf[2] = lba % CD_FRAMES;
+}
+/*==========================================================================*/
+/*==========================================================================*/
+/*
+ *  convert msf-bin to msf-bcd
+ */
+static INLINE void bin2bcdx(u_char *p)  /* must work only up to 75 or 99 */
+{
+	*p=((*p/10)<<4)|(*p%10);
+}
+/*==========================================================================*/
+static INLINE u_int blk2msf(u_int blk)
+{
+	MSF msf;
+	u_int mm;
+	
+	msf.c[3] = 0;
+	msf.c[2] = (blk + CD_MSF_OFFSET) / (CD_SECS * CD_FRAMES);
+	mm = (blk + CD_MSF_OFFSET) % (CD_SECS * CD_FRAMES);
+	msf.c[1] = mm / CD_FRAMES;
+	msf.c[0] = mm % CD_FRAMES;
+	return (msf.n);
+}
+/*==========================================================================*/
+static INLINE u_int make16(u_char rh, u_char rl)
+{
+	return ((rh<<8)|rl);
+}
+/*==========================================================================*/
+static INLINE u_int make32(u_int rh, u_int rl)
+{
+	return ((rh<<16)|rl);
+}
+/*==========================================================================*/
+static INLINE u_char swap_nibbles(u_char i)
+{
+	return ((i<<4)|(i>>4));
+}
+/*==========================================================================*/
+static INLINE u_char byt2bcd(u_char i)
+{
+	return (((i/10)<<4)+i%10);
+}
+/*==========================================================================*/
+static INLINE u_char bcd2bin(u_char bcd)
+{
+	return ((bcd>>4)*10+(bcd&0x0F));
+}
+/*==========================================================================*/
+static INLINE int msf2blk(int msfx)
+{
+	MSF msf;
+	int i;
+	
+	msf.n=msfx;
+	i=(msf.c[2] * CD_SECS + msf.c[1]) * CD_FRAMES + msf.c[0] - CD_MSF_OFFSET;
+	if (i<0) return (0);
+	return (i);
+}
+/*==========================================================================*/
+/*
+ *  convert m-s-f_number (3 bytes only) to logical_block_address 
+ */
+static INLINE int msf2lba(u_char *msf)
+{
+	int i;
+	
+	i=(msf[0] * CD_SECS + msf[1]) * CD_FRAMES + msf[2] - CD_MSF_OFFSET;
+	if (i<0) return (0);
+	return (i);
+}
+/*==========================================================================*/
+/* evaluate cc_ReadError code */ 
+static int sta2err(int sta)
+{
+	if (famT_drive)
+	{
+		if (sta==0x00) return (0);
+		if (sta==0x01) return (-604); /* CRC error */
+		if (sta==0x02) return (-602); /* drive not ready */
+		if (sta==0x03) return (-607); /* unknown media */
+		if (sta==0x04) return (-612); /* general failure */
+		if (sta==0x05) return (0);
+		if (sta==0x06) return (-ERR_DISKCHANGE); /* disk change */
+		if (sta==0x0b) return (-612); /* general failure */
+		if (sta==0xff) return (-612); /* general failure */
+		return (0);
+	}
+	else
+	{
+		if (sta<=2) return (sta);
+		if (sta==0x05) return (-604); /* CRC error */
+		if (sta==0x06) return (-606); /* seek error */
+		if (sta==0x0d) return (-606); /* seek error */
+		if (sta==0x0e) return (-603); /* unknown command */
+		if (sta==0x14) return (-603); /* unknown command */
+		if (sta==0x0c) return (-611); /* read fault */
+		if (sta==0x0f) return (-611); /* read fault */
+		if (sta==0x10) return (-611); /* read fault */
+		if (sta>=0x16) return (-612); /* general failure */
+		if (sta==0x11) return (-ERR_DISKCHANGE); /* disk change (LCS: removed) */
+		if (famL_drive)
+			if (sta==0x12) return (-ERR_DISKCHANGE); /* disk change (inserted) */
+		return (-602); /* drive not ready */
+	}
+}
+/*==========================================================================*/
+static INLINE void clr_cmdbuf(void)
+{
+	int i;
+	
+	for (i=0;i<10;i++) drvcmd[i]=0;
+	cmd_type=0;
+}
+/*==========================================================================*/
+static void flush_status(void)
+{
+	int i;
+	
+	sbp_sleep(15*HZ/10);
+	for (i=maxtim_data;i!=0;i--) inb(CDi_status);
+}
+/*====================================================================*/
+/*
+ * CDi status loop for Teac CD-55A (Rob Riggs)
+ *
+ * This is needed because for some strange reason
+ * the CD-55A can take a real long time to give a
+ * status response. This seems to happen after we
+ * issue a READ command where a long seek is involved.
+ *
+ * I tried to ensure that we get max throughput with
+ * minimal busy waiting. We busy wait at first, then
+ * "switch gears" and start sleeping. We sleep for
+ * longer periods of time the longer we wait.
+ *
+ */
+static int CDi_stat_loop_T(void)
+{
+	int	i, gear=1;
+	u_long  timeout_1, timeout_2, timeout_3, timeout_4;
+
+	timeout_1 = jiffies + HZ / 50;  /* sbp_sleep(0) for a short period */
+	timeout_2 = jiffies + HZ / 5;	/* nap for no more than 200ms */
+	timeout_3 = jiffies + 5 * HZ;	/* sleep for up to 5s */
+	timeout_4 = jiffies + 45 * HZ;	/* long sleep for up to 45s. */
+	do
+          {
+            i = inb(CDi_status);
+            if (!(i&s_not_data_ready)) return (i);
+            if (!(i&s_not_result_ready)) return (i);
+            switch(gear)
+              {
+              case 4:
+                sbp_sleep(HZ);
+                if (time_after(jiffies, timeout_4)) gear++;
+                msg(DBG_TEA, "CDi_stat_loop_T: long sleep active.\n");
+                break;
+              case 3:
+                sbp_sleep(HZ/10);
+                if (time_after(jiffies, timeout_3)) gear++;
+                break;
+              case 2:
+                sbp_sleep(HZ/100);
+                if (time_after(jiffies, timeout_2)) gear++;
+                break;
+              case 1:
+                sbp_sleep(0);
+                if (time_after(jiffies, timeout_1)) gear++;
+              }
+          } while (gear < 5);
+	return -1;
+}
+/*==========================================================================*/
+static int CDi_stat_loop(void)
+{
+	int i,j;
+	
+	for(timeout = jiffies + 10*HZ, i=maxtim_data; time_before(jiffies, timeout); )
+	{
+		for ( ;i!=0;i--)
+		{
+			j=inb(CDi_status);
+			if (!(j&s_not_data_ready)) return (j);
+			if (!(j&s_not_result_ready)) return (j);
+			if (fam0L_drive) if (j&s_attention) return (j);
+		}
+		sbp_sleep(1);
+		i = 1;
+	}
+	msg(DBG_LCS,"CDi_stat_loop failed in line %d\n", __LINE__);
+	return (-1);
+}
+/*==========================================================================*/
+#if 00000
+/*==========================================================================*/
+static int tst_DataReady(void)
+{
+	int i;
+	
+	i=inb(CDi_status);
+	if (i&s_not_data_ready) return (0);
+	return (1);
+}
+/*==========================================================================*/
+static int tst_ResultReady(void)
+{
+	int i;
+	
+	i=inb(CDi_status);
+	if (i&s_not_result_ready) return (0);
+	return (1);
+}
+/*==========================================================================*/
+static int tst_Attention(void)
+{
+	int i;
+	
+	i=inb(CDi_status);
+	if (i&s_attention) return (1);
+	return (0);
+}
+/*==========================================================================*/
+#endif
+/*==========================================================================*/
+static int ResponseInfo(void)
+{
+	int i,j,st=0;
+	u_long timeout;
+	
+	for (i=0,timeout=jiffies+HZ;i<response_count;i++) 
+	{
+		for (j=maxtim_data; ; )
+		{
+			for ( ;j!=0;j-- )
+			{
+				st=inb(CDi_status);
+				if (!(st&s_not_result_ready)) break;
+			}
+			if ((j!=0)||time_after_eq(jiffies, timeout)) break;
+			sbp_sleep(1);
+			j = 1;
+		}
+		if (time_after_eq(jiffies, timeout)) break;
+		infobuf[i]=inb(CDi_info);
+	}
+#if 000
+	while (!(inb(CDi_status)&s_not_result_ready))
+	{
+		infobuf[i++]=inb(CDi_info);
+	}
+	j=i-response_count;
+	if (j>0) msg(DBG_INF,"ResponseInfo: got %d trailing bytes.\n",j);
+#endif /* 000 */
+	for (j=0;j<i;j++)
+		sprintf(&msgbuf[j*3]," %02X",infobuf[j]);
+	msgbuf[j*3]=0;
+	msg(DBG_CMD,"ResponseInfo:%s (%d,%d)\n",msgbuf,response_count,i);
+	j=response_count-i;
+	if (j>0) return (-j);
+	else return (i);
+}
+/*==========================================================================*/
+static void EvaluateStatus(int st)
+{
+	current_drive->status_bits=0;
+	if (fam1_drive) current_drive->status_bits=st|p_success;
+	else if (fam0_drive)
+	{
+		if (st&p_caddin_old) current_drive->status_bits |= p_door_closed|p_caddy_in;
+		if (st&p_spinning) current_drive->status_bits |= p_spinning;
+		if (st&p_check) current_drive->status_bits |= p_check;
+ 		if (st&p_success_old) current_drive->status_bits |= p_success;
+ 		if (st&p_busy_old) current_drive->status_bits |= p_busy_new;
+		if (st&p_disk_ok) current_drive->status_bits |= p_disk_ok;
+	}
+	else if (famLV_drive)
+	{
+ 		current_drive->status_bits |= p_success;
+		if (st&p_caddin_old) current_drive->status_bits |= p_disk_ok|p_caddy_in;
+		if (st&p_spinning) current_drive->status_bits |= p_spinning;
+		if (st&p_check) current_drive->status_bits |= p_check;
+		if (st&p_busy_old) current_drive->status_bits |= p_busy_new;
+		if (st&p_lcs_door_closed) current_drive->status_bits |= p_door_closed;
+		if (st&p_lcs_door_locked) current_drive->status_bits |= p_door_locked;
+	}
+	else if (fam2_drive)
+	{
+ 		current_drive->status_bits |= p_success;
+		if (st&p2_check) current_drive->status_bits |= p1_check;
+		if (st&p2_door_closed) current_drive->status_bits |= p1_door_closed;
+		if (st&p2_disk_in) current_drive->status_bits |= p1_disk_in;
+		if (st&p2_busy1) current_drive->status_bits |= p1_busy;
+		if (st&p2_busy2) current_drive->status_bits |= p1_busy;
+		if (st&p2_spinning) current_drive->status_bits |= p1_spinning;
+		if (st&p2_door_locked) current_drive->status_bits |= p1_door_locked;
+		if (st&p2_disk_ok) current_drive->status_bits |= p1_disk_ok;
+	}
+	else if (famT_drive)
+	{
+		return; /* still needs to get coded */
+ 		current_drive->status_bits |= p_success;
+		if (st&p2_check) current_drive->status_bits |= p1_check;
+		if (st&p2_door_closed) current_drive->status_bits |= p1_door_closed;
+		if (st&p2_disk_in) current_drive->status_bits |= p1_disk_in;
+		if (st&p2_busy1) current_drive->status_bits |= p1_busy;
+		if (st&p2_busy2) current_drive->status_bits |= p1_busy;
+		if (st&p2_spinning) current_drive->status_bits |= p1_spinning;
+		if (st&p2_door_locked) current_drive->status_bits |= p1_door_locked;
+		if (st&p2_disk_ok) current_drive->status_bits |= p1_disk_ok;
+	}
+	return;
+}
+/*==========================================================================*/
+static int cmd_out_T(void);
+
+static int get_state_T(void)
+{
+	int i;
+
+	clr_cmdbuf();
+	current_drive->n_bytes=1;
+	drvcmd[0]=CMDT_STATUS;
+	i=cmd_out_T();
+	if (i>=0) i=infobuf[0];
+	else
+	{
+		msg(DBG_TEA,"get_state_T error %d\n", i);
+		return (i);
+	}
+	if (i>=0)
+		/* 2: closed, disk in */
+		current_drive->status_bits=p1_door_closed|p1_disk_in|p1_spinning|p1_disk_ok;
+	else if (current_drive->error_state==6)
+	{
+		/* 3: closed, disk in, changed ("06 xx xx") */
+		current_drive->status_bits=p1_door_closed|p1_disk_in;
+		current_drive->CD_changed=0xFF;
+		current_drive->diskstate_flags &= ~toc_bit;
+	}
+	else if ((current_drive->error_state!=2)||(current_drive->b3!=0x3A)||(current_drive->b4==0x00))
+	{
+		/* 1: closed, no disk ("xx yy zz"or "02 3A 00") */
+		current_drive->status_bits=p1_door_closed;
+		current_drive->open_count=0;
+	}
+	else if (current_drive->b4==0x01)
+	{
+		/* 0: open ("02 3A 01") */
+		current_drive->status_bits=0;
+		current_drive->open_count=0;
+	}
+	else
+	{
+		/* 1: closed, no disk ("02 3A xx") */
+		current_drive->status_bits=p1_door_closed;
+		current_drive->open_count=0;
+	}
+	return (current_drive->status_bits);
+}
+/*==========================================================================*/
+static int ResponseStatus(void)
+{
+	int i,j;
+	u_long timeout;
+	
+	msg(DBG_STA,"doing ResponseStatus...\n");
+	if (famT_drive) return (get_state_T());
+	if (flags_cmd_out & f_respo3) timeout = jiffies;
+	else if (flags_cmd_out & f_respo2) timeout = jiffies + 16*HZ;
+	else timeout = jiffies + 4*HZ;
+	j=maxtim_8;
+	do
+	{
+		for ( ;j!=0;j--)
+		{ 
+			i=inb(CDi_status);
+			if (!(i&s_not_result_ready)) break;
+		}
+		if ((j!=0)||time_after(jiffies, timeout)) break;
+		sbp_sleep(1);
+		j = 1;
+	}
+	while (1);
+	if (j==0) 
+	{
+		if ((flags_cmd_out & f_respo3) == 0)
+			msg(DBG_STA,"ResponseStatus: timeout.\n");
+		current_drive->status_bits=0;
+		return (-401);
+	}
+	i=inb(CDi_info);
+	msg(DBG_STA,"ResponseStatus: response %02X.\n", i);
+	EvaluateStatus(i);
+	msg(DBG_STA,"status_bits=%02X, i=%02X\n",current_drive->status_bits,i);
+	return (current_drive->status_bits);
+}
+/*==========================================================================*/
+static void cc_ReadStatus(void)
+{
+	int i;
+	
+	msg(DBG_STA,"giving cc_ReadStatus command\n");
+	if (famT_drive) return;
+	SBPCD_CLI;
+	if (fam0LV_drive) OUT(CDo_command,CMD0_STATUS);
+	else if (fam1_drive) OUT(CDo_command,CMD1_STATUS);
+	else if (fam2_drive) OUT(CDo_command,CMD2_STATUS);
+	if (!fam0LV_drive) for (i=0;i<6;i++) OUT(CDo_command,0);
+	SBPCD_STI;
+}
+/*==========================================================================*/
+static int cc_ReadError(void)
+{
+	int i;
+
+	clr_cmdbuf();
+	msg(DBG_ERR,"giving cc_ReadError command.\n");
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_READ_ERR;
+		response_count=8;
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (fam0LV_drive)
+	{
+		drvcmd[0]=CMD0_READ_ERR;
+		response_count=6;
+		if (famLV_drive)
+			flags_cmd_out=f_putcmd;
+		else
+			flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_READ_ERR;
+		response_count=6;
+		flags_cmd_out=f_putcmd;
+	}
+	else if (famT_drive)
+	{
+		response_count=5;
+		drvcmd[0]=CMDT_READ_ERR;
+	}
+	i=cmd_out();
+	current_drive->error_byte=0;
+	msg(DBG_ERR,"cc_ReadError: cmd_out(CMDx_READ_ERR) returns %d (%02X)\n",i,i);
+	if (i<0) return (i);
+	if (fam0V_drive) i=1;
+	else i=2;
+	current_drive->error_byte=infobuf[i];
+	msg(DBG_ERR,"cc_ReadError: infobuf[%d] is %d (%02X)\n",i,current_drive->error_byte,current_drive->error_byte);
+	i=sta2err(infobuf[i]);
+        if (i==-ERR_DISKCHANGE)
+        {
+                current_drive->CD_changed=0xFF;
+                current_drive->diskstate_flags &= ~toc_bit;
+        }
+	return (i);
+}
+/*==========================================================================*/
+static int cc_DriveReset(void);
+
+static int cmd_out_T(void)
+{
+#undef CMDT_TRIES
+#define CMDT_TRIES 1000
+#define TEST_FALSE_FF 1
+
+	int i, j, l=0, m, ntries;
+	unsigned long flags;
+
+	current_drive->error_state=0;
+	current_drive->b3=0;
+	current_drive->b4=0;
+	current_drive->f_drv_error=0;
+	for (i=0;i<10;i++) sprintf(&msgbuf[i*3]," %02X",drvcmd[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_CMD,"cmd_out_T:%s\n",msgbuf);
+
+	OUT(CDo_sel_i_d,0);
+	OUT(CDo_enable,current_drive->drv_sel);
+	i=inb(CDi_status);
+	do_16bit=0;
+	if ((f_16bit)&&(!(i&0x80)))
+	{
+		do_16bit=1;
+		msg(DBG_TEA,"cmd_out_T: do_16bit set.\n");
+	}
+	if (!(i&s_not_result_ready))
+	do
+	{
+		j=inb(CDi_info);
+		i=inb(CDi_status);
+		sbp_sleep(0);
+		msg(DBG_TEA,"cmd_out_T: spurious !s_not_result_ready. (%02X)\n", j);
+	}
+	while (!(i&s_not_result_ready));
+	save_flags(flags); cli();
+	for (i=0;i<10;i++) OUT(CDo_command,drvcmd[i]);
+	restore_flags(flags);
+	for (ntries=CMDT_TRIES;ntries>0;ntries--)
+	{
+		if (drvcmd[0]==CMDT_READ_VER) sbp_sleep(HZ); /* fixme */
+#if 01
+		OUT(CDo_sel_i_d,1);
+#endif /* 01 */
+		if (teac==2)
+                  {
+                    if ((i=CDi_stat_loop_T()) == -1) break;
+                  }
+		else
+                  {
+#if 0
+                    OUT(CDo_sel_i_d,1);
+#endif /* 0 */ 
+                    i=inb(CDi_status);
+                  }
+		if (!(i&s_not_data_ready)) /* f.e. CMDT_DISKINFO */
+		{
+			OUT(CDo_sel_i_d,1);
+			if (drvcmd[0]==CMDT_READ) return (0); /* handled elsewhere */
+			if (drvcmd[0]==CMDT_DISKINFO)
+			{
+				l=0;
+				do
+                                {
+                                        if (do_16bit)
+                                        {
+                                                i=inw(CDi_data);
+                                                infobuf[l++]=i&0x0ff;
+                                                infobuf[l++]=i>>8;
+#if TEST_FALSE_FF
+                                                if ((l==2)&&(infobuf[0]==0x0ff))
+                                                {
+                                                        infobuf[0]=infobuf[1];
+                                                        l=1;
+                                                        msg(DBG_TEA,"cmd_out_T: do_16bit: false first byte!\n");
+                                                }
+#endif /* TEST_FALSE_FF */ 
+                                        }
+                                        else infobuf[l++]=inb(CDi_data);
+                                        i=inb(CDi_status);
+                                }
+				while (!(i&s_not_data_ready));
+				for (j=0;j<l;j++) sprintf(&msgbuf[j*3]," %02X",infobuf[j]);
+				msgbuf[j*3]=0;
+				msg(DBG_CMD,"cmd_out_T data response:%s\n", msgbuf);
+			}
+			else
+			{
+				msg(DBG_TEA,"cmd_out_T: data response with cmd_%02X!\n",
+                                    drvcmd[0]);
+				j=0;
+				do
+				{
+                                        if (do_16bit) i=inw(CDi_data);
+                                        else i=inb(CDi_data);
+                                        j++;
+                                        i=inb(CDi_status);
+				}
+				while (!(i&s_not_data_ready));
+				msg(DBG_TEA,"cmd_out_T: data response: discarded %d bytes/words.\n", j);
+				fatal_err++;
+			}
+		}
+		i=inb(CDi_status);
+		if (!(i&s_not_result_ready))
+		{
+			OUT(CDo_sel_i_d,0);
+			if (drvcmd[0]==CMDT_DISKINFO) m=l;
+			else m=0;
+			do
+			{
+				infobuf[m++]=inb(CDi_info);
+				i=inb(CDi_status);
+			}
+			while (!(i&s_not_result_ready));
+			for (j=0;j<m;j++) sprintf(&msgbuf[j*3]," %02X",infobuf[j]);
+			msgbuf[j*3]=0;
+			msg(DBG_CMD,"cmd_out_T info response:%s\n", msgbuf);
+			if (drvcmd[0]==CMDT_DISKINFO)
+                        {
+                                infobuf[0]=infobuf[l];
+                                if (infobuf[0]!=0x02) return (l); /* data length */
+                        }
+			else if (infobuf[0]!=0x02) return (m); /* info length */
+			do
+			{
+				++recursion;
+				if (recursion>1) msg(DBG_TEA,"cmd_out_T READ_ERR recursion (%02X): %d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n", drvcmd[0], recursion);
+				clr_cmdbuf();
+				drvcmd[0]=CMDT_READ_ERR;
+				j=cmd_out_T(); /* !!! recursive here !!! */
+				--recursion;
+				sbp_sleep(1);
+			}
+			while (j<0);
+			current_drive->error_state=infobuf[2];
+			current_drive->b3=infobuf[3];
+			current_drive->b4=infobuf[4];
+			if (current_drive->f_drv_error)
+			{
+				current_drive->f_drv_error=0;
+				cc_DriveReset();
+				current_drive->error_state=2;
+			}
+			return (-current_drive->error_state-400);
+		}
+		if (drvcmd[0]==CMDT_READ) return (0); /* handled elsewhere */
+		if ((teac==0)||(ntries<(CMDT_TRIES-5))) sbp_sleep(HZ/10);
+		else sbp_sleep(HZ/100);
+		if (ntries>(CMDT_TRIES-50)) continue;
+		msg(DBG_TEA,"cmd_out_T: next CMDT_TRIES (%02X): %d.\n", drvcmd[0], ntries-1);
+	}
+	current_drive->f_drv_error=1;
+	cc_DriveReset();
+	current_drive->error_state=2;
+	return (-99);
+}
+/*==========================================================================*/
+static int cmd_out(void)
+{
+	int i=0;
+	
+	if (famT_drive) return(cmd_out_T());
+	
+	if (flags_cmd_out&f_putcmd)
+	{ 
+		unsigned long flags;
+		for (i=0;i<7;i++)
+			sprintf(&msgbuf[i*3], " %02X", drvcmd[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_CMD,"cmd_out:%s\n", msgbuf);
+		save_flags(flags); cli();
+		for (i=0;i<7;i++) OUT(CDo_command,drvcmd[i]);
+		restore_flags(flags);
+	}
+	if (response_count!=0)
+	{
+		if (cmd_type!=0)
+		{
+			if (sbpro_type==1) OUT(CDo_sel_i_d,1);
+			msg(DBG_INF,"misleaded to try ResponseData.\n");
+			if (sbpro_type==1) OUT(CDo_sel_i_d,0);
+			return (-22);
+		}
+		else i=ResponseInfo();
+		if (i<0) return (i);
+	}
+	if (current_drive->in_SpinUp) msg(DBG_SPI,"in_SpinUp: to CDi_stat_loop.\n");
+	if (flags_cmd_out&f_lopsta)
+	{
+		i=CDi_stat_loop();
+		if ((i<0)||!(i&s_attention)) return (-8);
+	}
+	if (!(flags_cmd_out&f_getsta)) goto LOC_229;
+	
+ LOC_228:
+	if (current_drive->in_SpinUp) msg(DBG_SPI,"in_SpinUp: to cc_ReadStatus.\n");
+	cc_ReadStatus();
+	
+ LOC_229:
+	if (flags_cmd_out&f_ResponseStatus) 
+	{
+		if (current_drive->in_SpinUp) msg(DBG_SPI,"in_SpinUp: to ResponseStatus.\n");
+		i=ResponseStatus();
+		/* builds status_bits, returns orig. status or p_busy_new */
+		if (i<0) return (i);
+		if (flags_cmd_out&(f_bit1|f_wait_if_busy))
+		{
+			if (!st_check)
+			{
+				if ((flags_cmd_out&f_bit1)&&(i&p_success)) goto LOC_232;
+				if ((!(flags_cmd_out&f_wait_if_busy))||(!st_busy)) goto LOC_228;
+			}
+		}
+	}
+ LOC_232:
+	if (!(flags_cmd_out&f_obey_p_check)) return (0);
+	if (!st_check) return (0);
+	if (current_drive->in_SpinUp) msg(DBG_SPI,"in_SpinUp: to cc_ReadError.\n");
+	i=cc_ReadError();
+	if (current_drive->in_SpinUp) msg(DBG_SPI,"in_SpinUp: to cmd_out OK.\n");
+	msg(DBG_000,"cmd_out: cc_ReadError=%d\n", i);
+	return (i);
+}
+/*==========================================================================*/
+static int cc_Seek(u_int pos, char f_blk_msf)
+{
+	int i;
+	
+  clr_cmdbuf();
+	if (f_blk_msf>1) return (-3);
+	if (fam0V_drive)
+	{
+		drvcmd[0]=CMD0_SEEK;
+		if (f_blk_msf==1) pos=msf2blk(pos);
+		drvcmd[2]=(pos>>16)&0x00FF;
+		drvcmd[3]=(pos>>8)&0x00FF;
+		drvcmd[4]=pos&0x00FF;
+		if (fam0_drive)
+		  flags_cmd_out = f_putcmd | f_respo2 | f_lopsta | f_getsta |
+			f_ResponseStatus | f_obey_p_check | f_bit1;
+		else
+		  flags_cmd_out = f_putcmd;
+	}
+	else if (fam1L_drive)
+	{
+		drvcmd[0]=CMD1_SEEK; /* same as CMD1_ and CMDL_ */
+		if (f_blk_msf==0) pos=blk2msf(pos);
+		drvcmd[1]=(pos>>16)&0x00FF;
+		drvcmd[2]=(pos>>8)&0x00FF;
+		drvcmd[3]=pos&0x00FF;
+		if (famL_drive)
+			flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+		else
+			flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_SEEK;
+		if (f_blk_msf==0) pos=blk2msf(pos);
+		drvcmd[2]=(pos>>24)&0x00FF;
+		drvcmd[3]=(pos>>16)&0x00FF;
+		drvcmd[4]=(pos>>8)&0x00FF;
+		drvcmd[5]=pos&0x00FF;
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_SEEK;
+		if (f_blk_msf==1) pos=msf2blk(pos);
+		drvcmd[2]=(pos>>24)&0x00FF;
+		drvcmd[3]=(pos>>16)&0x00FF;
+		drvcmd[4]=(pos>>8)&0x00FF;
+		drvcmd[5]=pos&0x00FF;
+		current_drive->n_bytes=1;
+	}
+	response_count=0;
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_SpinUp(void)
+{
+	int i;
+	
+	msg(DBG_SPI,"SpinUp.\n");
+	current_drive->in_SpinUp = 1;
+	clr_cmdbuf();
+	if (fam0LV_drive)
+	{
+		drvcmd[0]=CMD0_SPINUP;
+		if (fam0L_drive)
+		  flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|
+		    f_ResponseStatus|f_obey_p_check|f_bit1;
+		else
+		  flags_cmd_out=f_putcmd;
+	}
+	else if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_SPINUP;
+		flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_TRAY_CTL;
+		drvcmd[4]=0x01; /* "spinup" */
+		flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_TRAY_CTL;
+		drvcmd[4]=0x03; /* "insert", it hopefully spins the drive up */
+	}
+	response_count=0;
+	i=cmd_out();
+	current_drive->in_SpinUp = 0;
+	return (i);
+}
+/*==========================================================================*/
+static int cc_SpinDown(void)
+{
+	int i;
+	
+	if (fam0_drive) return (0);
+	clr_cmdbuf();
+	response_count=0;
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_SPINDOWN;
+		flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_TRAY_CTL;
+		drvcmd[4]=0x02; /* "eject" */
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (famL_drive)
+	{
+		drvcmd[0]=CMDL_SPINDOWN;
+		drvcmd[1]=1;
+		flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+	}
+	else if (famV_drive)
+	{
+		drvcmd[0]=CMDV_SPINDOWN;
+		flags_cmd_out=f_putcmd;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_TRAY_CTL;
+		drvcmd[4]=0x02; /* "eject" */
+	}
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_get_mode_T(void)
+{
+	int i;
+	
+	clr_cmdbuf();
+	response_count=10;
+	drvcmd[0]=CMDT_GETMODE;
+	drvcmd[4]=response_count;
+	i=cmd_out_T();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_set_mode_T(void)
+{
+	int i;
+	
+	clr_cmdbuf();
+	response_count=1;
+	drvcmd[0]=CMDT_SETMODE;
+	drvcmd[1]=current_drive->speed_byte;
+	drvcmd[2]=current_drive->frmsiz>>8;
+	drvcmd[3]=current_drive->frmsiz&0x0FF;
+	drvcmd[4]=current_drive->f_XA; /* 1: XA */
+	drvcmd[5]=current_drive->type_byte; /* 0, 1, 3 */
+	drvcmd[6]=current_drive->mode_xb_6;
+	drvcmd[7]=current_drive->mode_yb_7|current_drive->volume_control;
+	drvcmd[8]=current_drive->mode_xb_8;
+	drvcmd[9]=current_drive->delay;
+	i=cmd_out_T();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_prep_mode_T(void)
+{
+	int i, j;
+	
+	i=cc_get_mode_T();
+	if (i<0) return (i);
+	for (i=0;i<10;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_TEA,"CMDT_GETMODE:%s\n", msgbuf);
+	current_drive->speed_byte=0x02; /* 0x02: auto quad, 0x82: quad, 0x81: double, 0x80: single */
+	current_drive->frmsiz=make16(infobuf[2],infobuf[3]);
+	current_drive->f_XA=infobuf[4];
+	if (current_drive->f_XA==0) current_drive->type_byte=0;
+	else current_drive->type_byte=1;
+	current_drive->mode_xb_6=infobuf[6];
+	current_drive->mode_yb_7=1;
+	current_drive->mode_xb_8=infobuf[8];
+	current_drive->delay=0; /* 0, 1, 2, 3 */
+	j=cc_set_mode_T();
+	i=cc_get_mode_T();
+	for (i=0;i<10;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_TEA,"CMDT_GETMODE:%s\n", msgbuf);
+	return (j);
+}
+/*==========================================================================*/
+static int cc_SetSpeed(u_char speed, u_char x1, u_char x2)
+{
+	int i;
+	
+	if (fam0LV_drive) return (0);
+	clr_cmdbuf();
+	response_count=0;
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_SETMODE;
+		drvcmd[1]=0x03;
+		drvcmd[2]=speed;
+		drvcmd[3]=x1;
+		drvcmd[4]=x2;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_SETSPEED;
+		if (speed&speed_auto)
+		{
+			drvcmd[2]=0xFF;
+			drvcmd[3]=0xFF;
+		}
+		else
+		{
+			drvcmd[2]=0;
+			drvcmd[3]=150;
+		}
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		return (0);
+	}
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_SetVolume(void)
+{
+	int i;
+	u_char channel0,channel1,volume0,volume1;
+	u_char control0,value0,control1,value1;
+	
+	current_drive->diskstate_flags &= ~volume_bit;
+	clr_cmdbuf();
+	channel0=current_drive->vol_chan0;
+	volume0=current_drive->vol_ctrl0;
+	channel1=control1=current_drive->vol_chan1;
+	volume1=value1=current_drive->vol_ctrl1;
+	control0=value0=0;
+	
+	if (famV_drive) return (0);
+
+	if (((current_drive->drv_options&audio_mono)!=0)&&(current_drive->drv_type>=drv_211))
+	{
+		if ((volume0!=0)&&(volume1==0))
+		{
+			volume1=volume0;
+			channel1=channel0;
+		}
+		else if ((volume0==0)&&(volume1!=0))
+		{
+			volume0=volume1;
+			channel0=channel1;
+		}
+	}
+	if (channel0>1)
+	{
+		channel0=0;
+		volume0=0;
+	}
+	if (channel1>1)
+	{
+		channel1=1;
+		volume1=0;
+	}
+	
+	if (fam1_drive)
+	{
+		control0=channel0+1;
+		control1=channel1+1;
+		value0=(volume0>volume1)?volume0:volume1;
+		value1=value0;
+		if (volume0==0) control0=0;
+		if (volume1==0) control1=0;
+		drvcmd[0]=CMD1_SETMODE;
+		drvcmd[1]=0x05;
+		drvcmd[3]=control0;
+		drvcmd[4]=value0;
+		drvcmd[5]=control1;
+		drvcmd[6]=value1;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		control0=channel0+1;
+		control1=channel1+1;
+		value0=(volume0>volume1)?volume0:volume1;
+		value1=value0;
+		if (volume0==0) control0=0;
+		if (volume1==0) control1=0;
+		drvcmd[0]=CMD2_SETMODE;
+		drvcmd[1]=0x0E;
+		drvcmd[3]=control0;
+		drvcmd[4]=value0;
+		drvcmd[5]=control1;
+		drvcmd[6]=value1;
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (famL_drive)
+	{
+		if ((volume0==0)||(channel0!=0)) control0 |= 0x80;
+		if ((volume1==0)||(channel1!=1)) control0 |= 0x40;
+		if (volume0|volume1) value0=0x80;
+		drvcmd[0]=CMDL_SETMODE;
+		drvcmd[1]=0x03;
+		drvcmd[4]=control0;
+		drvcmd[5]=value0;
+		flags_cmd_out=f_putcmd|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+	}
+	else if (fam0_drive) /* different firmware levels */
+	{
+		if (current_drive->drv_type>=drv_300)
+		{
+			control0=volume0&0xFC;
+			value0=volume1&0xFC;
+			if ((volume0!=0)&&(volume0<4)) control0 |= 0x04;
+			if ((volume1!=0)&&(volume1<4)) value0 |= 0x04;
+			if (channel0!=0) control0 |= 0x01;
+			if (channel1==1) value0 |= 0x01;
+		}
+		else
+		{
+			value0=(volume0>volume1)?volume0:volume1;
+			if (current_drive->drv_type<drv_211)
+			{
+				if (channel0!=0)
+				{
+					i=channel1;
+					channel1=channel0;
+					channel0=i;
+					i=volume1;
+					volume1=volume0;
+					volume0=i;
+				}
+				if (channel0==channel1)
+				{
+					if (channel0==0)
+					{
+						channel1=1;
+						volume1=0;
+						volume0=value0;
+					}
+					else
+					{
+						channel0=0;
+						volume0=0;
+						volume1=value0;
+					}
+				}
+			}
+			
+			if ((volume0!=0)&&(volume1!=0))
+			{
+				if (volume0==0xFF) volume1=0xFF;
+				else if (volume1==0xFF) volume0=0xFF;
+			}
+			else if (current_drive->drv_type<drv_201) volume0=volume1=value0;
+			
+			if (current_drive->drv_type>=drv_201)
+			{
+				if (volume0==0) control0 |= 0x80;
+				if (volume1==0) control0 |= 0x40;
+			}
+			if (current_drive->drv_type>=drv_211)
+			{
+				if (channel0!=0) control0 |= 0x20;
+				if (channel1!=1) control0 |= 0x10;
+			}
+		}
+		drvcmd[0]=CMD0_SETMODE;
+		drvcmd[1]=0x83;
+		drvcmd[4]=control0;
+		drvcmd[5]=value0;
+		flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		current_drive->volume_control=0;
+		if (!volume0) current_drive->volume_control|=0x10;
+		if (!volume1) current_drive->volume_control|=0x20;
+		i=cc_prep_mode_T();
+		if (i<0) return (i);
+	}
+	if (!famT_drive)
+	{
+		response_count=0;
+		i=cmd_out();
+		if (i<0) return (i);
+	}
+	current_drive->diskstate_flags |= volume_bit;
+	return (0);
+}
+/*==========================================================================*/
+static int GetStatus(void)
+{
+	int i;
+	
+	if (famT_drive) return (0);
+	flags_cmd_out=f_getsta|f_ResponseStatus|f_obey_p_check;
+	response_count=0;
+	cmd_type=0;
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_DriveReset(void)
+{
+	int i;
+	
+	msg(DBG_RES,"cc_DriveReset called.\n");
+	clr_cmdbuf();
+	response_count=0;
+	if (fam0LV_drive) OUT(CDo_reset,0x00);
+	else if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_RESET;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_RESET;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+		OUT(CDo_reset,0x00);
+	}
+	else if (famT_drive)
+	{
+		OUT(CDo_sel_i_d,0);
+		OUT(CDo_enable,current_drive->drv_sel);
+		OUT(CDo_command,CMDT_RESET);
+		for (i=1;i<10;i++) OUT(CDo_command,0);
+	}
+	if (fam0LV_drive) sbp_sleep(5*HZ); /* wait 5 seconds */
+	else sbp_sleep(1*HZ); /* wait a second */
+#if 1
+	if (famT_drive)
+	{
+		msg(DBG_TEA, "================CMDT_RESET given=================.\n");
+		sbp_sleep(3*HZ);
+	}
+#endif /* 1 */ 
+	flush_status();
+	i=GetStatus();
+	if (i<0) return i;
+	if (!famT_drive)
+		if (current_drive->error_byte!=aud_12) return -501;
+	return (0);
+}
+
+/*==========================================================================*/
+static int SetSpeed(void)
+{
+	int i, speed;
+	
+	if (!(current_drive->drv_options&(speed_auto|speed_300|speed_150))) return (0);
+	speed=speed_auto;
+	if (!(current_drive->drv_options&speed_auto))
+	{
+		speed |= speed_300;
+		if (!(current_drive->drv_options&speed_300)) speed=0;
+	}
+	i=cc_SetSpeed(speed,0,0);
+	return (i);
+}
+
+static void switch_drive(struct sbpcd_drive *);
+
+static int sbpcd_select_speed(struct cdrom_device_info *cdi, int speed)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	if (p != current_drive)
+		switch_drive(p);
+
+	return cc_SetSpeed(speed == 2 ? speed_300 : speed_150, 0, 0);
+}
+
+/*==========================================================================*/
+static int DriveReset(void)
+{
+	int i;
+	
+	i=cc_DriveReset();
+	if (i<0) return (-22);
+	do
+	{
+		i=GetStatus();
+		if ((i<0)&&(i!=-ERR_DISKCHANGE)) {
+			return (-2); /* from sta2err */
+		}
+		if (!st_caddy_in) break;
+		sbp_sleep(1);
+	}
+	while (!st_diskok);
+#if 000
+	current_drive->CD_changed=1;
+#endif
+	if ((st_door_closed) && (st_caddy_in))
+	{
+		i=DiskInfo();
+		if (i<0) return (-23);
+	}
+	return (0);
+}
+
+static int sbpcd_reset(struct cdrom_device_info *cdi)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	if (p != current_drive)
+		switch_drive(p);
+	return DriveReset();
+}
+
+/*==========================================================================*/
+static int cc_PlayAudio(int pos_audio_start,int pos_audio_end)
+{
+	int i, j, n;
+	
+	if (current_drive->audio_state==audio_playing) return (-EINVAL);
+	clr_cmdbuf();
+	response_count=0;
+	if (famLV_drive)
+	{
+		drvcmd[0]=CMDL_PLAY;
+		i=msf2blk(pos_audio_start);
+		n=msf2blk(pos_audio_end)+1-i;
+		drvcmd[1]=(i>>16)&0x00FF;
+		drvcmd[2]=(i>>8)&0x00FF;
+		drvcmd[3]=i&0x00FF;
+		drvcmd[4]=(n>>16)&0x00FF;
+		drvcmd[5]=(n>>8)&0x00FF;
+		drvcmd[6]=n&0x00FF;
+		if (famL_drive)
+		flags_cmd_out = f_putcmd | f_respo2 | f_lopsta | f_getsta |
+			f_ResponseStatus | f_obey_p_check | f_wait_if_busy;
+		else
+		  flags_cmd_out = f_putcmd;
+	}
+	else
+	{
+		j=1;
+		if (fam1_drive)
+		{
+			drvcmd[0]=CMD1_PLAY_MSF;
+			flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus |
+				f_obey_p_check | f_wait_if_busy;
+		}
+		else if (fam2_drive)
+		{
+			drvcmd[0]=CMD2_PLAY_MSF;
+			flags_cmd_out = f_putcmd | f_ResponseStatus | f_obey_p_check;
+		}
+		else if (famT_drive)
+		{
+			drvcmd[0]=CMDT_PLAY_MSF;
+			j=3;
+			response_count=1;
+		}
+		else if (fam0_drive)
+		{
+			drvcmd[0]=CMD0_PLAY_MSF;
+			flags_cmd_out = f_putcmd | f_respo2 | f_lopsta | f_getsta |
+				f_ResponseStatus | f_obey_p_check | f_wait_if_busy;
+		}
+		drvcmd[j]=(pos_audio_start>>16)&0x00FF;
+		drvcmd[j+1]=(pos_audio_start>>8)&0x00FF;
+		drvcmd[j+2]=pos_audio_start&0x00FF;
+		drvcmd[j+3]=(pos_audio_end>>16)&0x00FF;
+		drvcmd[j+4]=(pos_audio_end>>8)&0x00FF;
+		drvcmd[j+5]=pos_audio_end&0x00FF;
+	}
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_Pause_Resume(int pau_res)
+{
+	int i;
+	
+	clr_cmdbuf();
+	response_count=0;
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_PAU_RES;
+		if (pau_res!=1) drvcmd[1]=0x80;
+		flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_PAU_RES;
+		if (pau_res!=1) drvcmd[2]=0x01;
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (fam0LV_drive)
+	{
+		drvcmd[0]=CMD0_PAU_RES;
+		if (pau_res!=1) drvcmd[1]=0x80;
+		if (famL_drive)
+			flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|f_ResponseStatus|
+				f_obey_p_check|f_bit1;
+		else if (famV_drive)
+		  flags_cmd_out=f_putcmd;
+		else
+			flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|f_ResponseStatus|
+				f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		if (pau_res==3)	return (cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end));
+		else if (pau_res==1) drvcmd[0]=CMDT_PAUSE;
+		else return (-56);
+	}
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int cc_LockDoor(char lock)
+{
+	int i;
+	
+	if (fam0_drive) return (0);
+	msg(DBG_LCK,"cc_LockDoor: %d (drive %d)\n", lock, current_drive - D_S);
+	msg(DBG_LCS,"p_door_locked bit %d before\n", st_door_locked);
+	clr_cmdbuf();
+	response_count=0;
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_LOCK_CTL;
+		if (lock==1) drvcmd[1]=0x01;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_LOCK_CTL;
+		if (lock==1) drvcmd[4]=0x01;
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (famLV_drive)
+	{
+		drvcmd[0]=CMDL_LOCK_CTL;
+		if (lock==1) drvcmd[1]=0x01;
+		if (famL_drive)
+		  flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+		else
+		  flags_cmd_out=f_putcmd;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_LOCK_CTL;
+		if (lock==1) drvcmd[4]=0x01;
+	}
+	i=cmd_out();
+	msg(DBG_LCS,"p_door_locked bit %d after\n", st_door_locked);
+	return (i);
+}
+/*==========================================================================*/
+/*==========================================================================*/
+static int UnLockDoor(void)
+{
+	int i,j;
+	
+	j=20;
+	do
+	{
+		i=cc_LockDoor(0);
+		--j;
+		sbp_sleep(1);
+	}
+	while ((i<0)&&(j));
+	if (i<0)
+	{
+		cc_DriveReset();
+		return -84;
+	}
+	return (0);
+}
+/*==========================================================================*/
+static int LockDoor(void)
+{
+	int i,j;
+	
+	j=20;
+	do
+	{
+		i=cc_LockDoor(1);
+		--j;
+		sbp_sleep(1);
+	}
+	while ((i<0)&&(j));
+	if (j==0)
+	{		
+		cc_DriveReset();
+		j=20;
+		do
+		{
+			i=cc_LockDoor(1);
+			--j;
+			sbp_sleep(1);
+		}
+		while ((i<0)&&(j));
+	}
+	return (i);
+}
+
+static int sbpcd_lock_door(struct cdrom_device_info *cdi, int lock)
+{
+  return lock ? LockDoor() : UnLockDoor();
+}
+
+/*==========================================================================*/
+static int cc_CloseTray(void)
+{
+	int i;
+	
+	if (fam0_drive) return (0);
+	msg(DBG_LCK,"cc_CloseTray (drive %d)\n", current_drive - D_S);
+	msg(DBG_LCS,"p_door_closed bit %d before\n", st_door_closed);
+	
+	clr_cmdbuf();
+	response_count=0;
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_TRAY_CTL;
+		flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_TRAY_CTL;
+		drvcmd[1]=0x01;
+		drvcmd[4]=0x03; /* "insert" */
+		flags_cmd_out=f_putcmd|f_ResponseStatus;
+	}
+	else if (famLV_drive)
+	{
+		drvcmd[0]=CMDL_TRAY_CTL;
+		if (famLV_drive)
+		  flags_cmd_out=f_putcmd|f_respo2|f_lopsta|f_getsta|
+			f_ResponseStatus|f_obey_p_check|f_bit1;
+		else
+		  flags_cmd_out=f_putcmd;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_TRAY_CTL;
+		drvcmd[4]=0x03; /* "insert" */
+	}
+	i=cmd_out();
+	msg(DBG_LCS,"p_door_closed bit %d after\n", st_door_closed);
+
+	i=cc_ReadError();
+	flags_cmd_out |= f_respo2;
+	cc_ReadStatus(); /* command: give 1-byte status */
+	i=ResponseStatus();
+	if (famT_drive&&(i<0))
+	{
+		cc_DriveReset();
+		i=ResponseStatus();
+#if 0
+                sbp_sleep(HZ);
+#endif /* 0 */ 
+		i=ResponseStatus();
+	}
+	if (i<0)
+	{
+		msg(DBG_INF,"sbpcd cc_CloseTray: ResponseStatus timed out (%d).\n",i);
+	}
+	if (!(famT_drive))
+	{
+		if (!st_spinning)
+		{
+			cc_SpinUp();
+			if (st_check) i=cc_ReadError();
+			flags_cmd_out |= f_respo2;
+			cc_ReadStatus();
+			i=ResponseStatus();
+		} else {
+		}
+	}
+	i=DiskInfo();
+	return (i);
+}
+
+static int sbpcd_tray_move(struct cdrom_device_info *cdi, int position)
+{
+	int retval=0;
+	switch_drive(cdi->handle);
+	/* DUH! --AJK */
+	if(current_drive->CD_changed != 0xFF) {
+		current_drive->CD_changed=0xFF;
+		current_drive->diskstate_flags &= ~cd_size_bit;
+	}
+	if (position == 1) {
+		cc_SpinDown();
+	} else {
+		retval=cc_CloseTray();
+	}
+  return retval;
+}
+
+/*==========================================================================*/
+static int cc_ReadSubQ(void)
+{
+	int i,j;
+
+	current_drive->diskstate_flags &= ~subq_bit;
+	for (j=255;j>0;j--)
+	{
+		clr_cmdbuf();
+		if (fam1_drive)
+		{
+			drvcmd[0]=CMD1_READSUBQ;
+			flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+			response_count=11;
+		}
+		else if (fam2_drive)
+		{
+			drvcmd[0]=CMD2_READSUBQ;
+			drvcmd[1]=0x02;
+			drvcmd[3]=0x01;
+			flags_cmd_out=f_putcmd;
+			response_count=10;
+		}
+		else if (fam0LV_drive)
+		{
+			drvcmd[0]=CMD0_READSUBQ;
+			drvcmd[1]=0x02;
+			if (famLV_drive)
+				flags_cmd_out=f_putcmd;
+			else
+				flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+			response_count=13;
+		}
+		else if (famT_drive)
+		{
+			response_count=12;
+			drvcmd[0]=CMDT_READSUBQ;
+			drvcmd[1]=0x02;
+			drvcmd[2]=0x40;
+			drvcmd[3]=0x01;
+			drvcmd[8]=response_count;
+		}
+		i=cmd_out();
+		if (i<0) return (i);
+		for (i=0;i<response_count;i++)
+		{
+			sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+			msgbuf[i*3]=0;
+			msg(DBG_SQ1,"cc_ReadSubQ:%s\n", msgbuf);
+		}
+		if (famT_drive) break;
+		if (infobuf[0]!=0) break;
+		if ((!st_spinning) || (j==1))
+		{
+			current_drive->SubQ_ctl_adr=current_drive->SubQ_trk=current_drive->SubQ_pnt_idx=current_drive->SubQ_whatisthis=0;
+			current_drive->SubQ_run_tot=current_drive->SubQ_run_trk=0;
+			return (0);
+		}
+	}
+	if (famT_drive) current_drive->SubQ_ctl_adr=infobuf[1];
+	else current_drive->SubQ_ctl_adr=swap_nibbles(infobuf[1]);
+	current_drive->SubQ_trk=byt2bcd(infobuf[2]);
+	current_drive->SubQ_pnt_idx=byt2bcd(infobuf[3]);
+	if (fam0LV_drive) i=5;
+	else if (fam12_drive) i=4;
+	else if (famT_drive) i=8;
+	current_drive->SubQ_run_tot=make32(make16(0,infobuf[i]),make16(infobuf[i+1],infobuf[i+2])); /* msf-bin */
+	i=7;
+	if (fam0LV_drive) i=9;
+	else if (fam12_drive) i=7;
+	else if (famT_drive) i=4;
+	current_drive->SubQ_run_trk=make32(make16(0,infobuf[i]),make16(infobuf[i+1],infobuf[i+2])); /* msf-bin */
+	current_drive->SubQ_whatisthis=infobuf[i+3];
+	current_drive->diskstate_flags |= subq_bit;
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ModeSense(void)
+{
+	int i;
+	
+	if (fam2_drive) return (0);
+	if (famV_drive) return (0);
+	current_drive->diskstate_flags &= ~frame_size_bit;
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		response_count=5;
+		drvcmd[0]=CMD1_GETMODE;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam0L_drive)
+	{
+		response_count=2;
+		drvcmd[0]=CMD0_GETMODE;
+		if (famL_drive) flags_cmd_out=f_putcmd;
+		else flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		response_count=10;
+		drvcmd[0]=CMDT_GETMODE;
+		drvcmd[4]=response_count;
+	}
+	i=cmd_out();
+	if (i<0) return (i);
+	i=0;
+	current_drive->sense_byte=0;
+	if (fam1_drive) current_drive->sense_byte=infobuf[i++];
+	else if (famT_drive)
+	{
+		if (infobuf[4]==0x01) current_drive->xa_byte=0x20;
+		else current_drive->xa_byte=0;
+		i=2;
+	}
+	current_drive->frame_size=make16(infobuf[i],infobuf[i+1]);
+	for (i=0;i<response_count;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_XA1,"cc_ModeSense:%s\n", msgbuf);
+	
+	current_drive->diskstate_flags |= frame_size_bit;
+	return (0);
+}
+/*==========================================================================*/
+/*==========================================================================*/
+static int cc_ModeSelect(int framesize)
+{
+	int i;
+	
+	if (fam2_drive) return (0);
+	if (famV_drive) return (0);
+	current_drive->diskstate_flags &= ~frame_size_bit;
+	clr_cmdbuf();
+	current_drive->frame_size=framesize;
+	if (framesize==CD_FRAMESIZE_RAW) current_drive->sense_byte=0x82;
+	else current_drive->sense_byte=0x00;
+	
+	msg(DBG_XA1,"cc_ModeSelect: %02X %04X\n",
+	    current_drive->sense_byte, current_drive->frame_size);
+	
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_SETMODE;
+		drvcmd[1]=0x00;
+		drvcmd[2]=current_drive->sense_byte;
+		drvcmd[3]=(current_drive->frame_size>>8)&0xFF;
+		drvcmd[4]=current_drive->frame_size&0xFF;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam0L_drive)
+	{
+		drvcmd[0]=CMD0_SETMODE;
+		drvcmd[1]=0x00;
+		drvcmd[2]=(current_drive->frame_size>>8)&0xFF;
+		drvcmd[3]=current_drive->frame_size&0xFF;
+		drvcmd[4]=0x00;
+		if(famL_drive)
+			flags_cmd_out=f_putcmd|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check;
+		else
+			flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		return (-1);
+	}
+	response_count=0;
+	i=cmd_out();
+	if (i<0) return (i);
+	current_drive->diskstate_flags |= frame_size_bit;
+	return (0);
+}
+/*==========================================================================*/
+static int cc_GetVolume(void)
+{
+	int i;
+	u_char switches;
+	u_char chan0=0;
+	u_char vol0=0;
+	u_char chan1=1;
+	u_char vol1=0;
+	
+	if (famV_drive) return (0);
+	current_drive->diskstate_flags &= ~volume_bit;
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_GETMODE;
+		drvcmd[1]=0x05;
+		response_count=5;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_GETMODE;
+		drvcmd[1]=0x0E;
+		response_count=5;
+		flags_cmd_out=f_putcmd;
+	}
+	else if (fam0L_drive)
+	{
+		drvcmd[0]=CMD0_GETMODE;
+		drvcmd[1]=0x03;
+		response_count=2;
+		if(famL_drive)
+			flags_cmd_out=f_putcmd;
+		else
+			flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		i=cc_get_mode_T();
+		if (i<0) return (i);
+	}
+	if (!famT_drive)
+	{
+		i=cmd_out();
+		if (i<0) return (i);
+	}
+	if (fam1_drive)
+	{
+		chan0=infobuf[1]&0x0F;
+		vol0=infobuf[2];
+		chan1=infobuf[3]&0x0F;
+		vol1=infobuf[4];
+		if (chan0==0)
+		{
+			chan0=1;
+			vol0=0;
+		}
+		if (chan1==0)
+		{
+			chan1=2;
+			vol1=0;
+		}
+		chan0 >>= 1;
+		chan1 >>= 1;
+	}
+	else if (fam2_drive)
+	{
+		chan0=infobuf[1];
+		vol0=infobuf[2];
+		chan1=infobuf[3];
+		vol1=infobuf[4];
+	}
+	else if (famL_drive)
+	{
+		chan0=0;
+		chan1=1;
+		vol0=vol1=infobuf[1];
+		switches=infobuf[0];
+		if ((switches&0x80)!=0) chan0=1;
+		if ((switches&0x40)!=0) chan1=0;
+	}
+	else if (fam0_drive) /* different firmware levels */
+	{
+		chan0=0;
+		chan1=1;
+		vol0=vol1=infobuf[1];
+		if (current_drive->drv_type>=drv_201)
+		{
+			if (current_drive->drv_type<drv_300)
+			{
+				switches=infobuf[0];
+				if ((switches&0x80)!=0) vol0=0;
+				if ((switches&0x40)!=0) vol1=0;
+				if (current_drive->drv_type>=drv_211)
+				{
+					if ((switches&0x20)!=0) chan0=1;
+					if ((switches&0x10)!=0) chan1=0;
+				}
+			}
+			else
+			{
+				vol0=infobuf[0];
+				if ((vol0&0x01)!=0) chan0=1;
+				if ((vol1&0x01)==0) chan1=0;
+				vol0 &= 0xFC;
+				vol1 &= 0xFC;
+				if (vol0!=0) vol0 += 3;
+				if (vol1!=0) vol1 += 3;
+			}
+		}
+	}
+	else if (famT_drive)
+	{
+		current_drive->volume_control=infobuf[7];
+		chan0=0;
+		chan1=1;
+		if (current_drive->volume_control&0x10) vol0=0;
+		else vol0=0xff;
+		if (current_drive->volume_control&0x20) vol1=0;
+		else vol1=0xff;
+	}
+	current_drive->vol_chan0=chan0;
+	current_drive->vol_ctrl0=vol0;
+	current_drive->vol_chan1=chan1;
+	current_drive->vol_ctrl1=vol1;
+#if 000
+	current_drive->vol_chan2=2;
+	current_drive->vol_ctrl2=0xFF;
+	current_drive->vol_chan3=3;
+	current_drive->vol_ctrl3=0xFF;
+#endif /*  000 */
+	current_drive->diskstate_flags |= volume_bit;
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ReadCapacity(void)
+{
+	int i, j;
+	
+	if (fam2_drive) return (0); /* some firmware lacks this command */
+	if (famLV_drive) return (0); /* some firmware lacks this command */
+	if (famT_drive) return (0); /* done with cc_ReadTocDescr() */
+	current_drive->diskstate_flags &= ~cd_size_bit;
+	for (j=3;j>0;j--)
+	{
+		clr_cmdbuf();
+		if (fam1_drive)
+		{
+			drvcmd[0]=CMD1_CAPACITY;
+			response_count=5;
+			flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+		}
+#if 00
+		else if (fam2_drive)
+		{
+			drvcmd[0]=CMD2_CAPACITY;
+			response_count=8;
+			flags_cmd_out=f_putcmd;
+		}
+#endif
+		else if (fam0_drive)
+		{
+			drvcmd[0]=CMD0_CAPACITY;
+			response_count=5;
+			flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+		}
+		i=cmd_out();
+		if (i>=0) break;
+		msg(DBG_000,"cc_ReadCapacity: cmd_out: err %d\n", i);
+		cc_ReadError();
+	}
+	if (j==0) return (i);
+	if (fam1_drive) current_drive->CDsize_frm=msf2blk(make32(make16(0,infobuf[0]),make16(infobuf[1],infobuf[2])))+CD_MSF_OFFSET;
+	else if (fam0_drive) current_drive->CDsize_frm=make32(make16(0,infobuf[0]),make16(infobuf[1],infobuf[2]));
+#if 00
+	else if (fam2_drive) current_drive->CDsize_frm=make32(make16(infobuf[0],infobuf[1]),make16(infobuf[2],infobuf[3]));
+#endif
+	current_drive->diskstate_flags |= cd_size_bit;
+	msg(DBG_000,"cc_ReadCapacity: %d frames.\n", current_drive->CDsize_frm);
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ReadTocDescr(void)
+{
+	int i;
+	
+	current_drive->diskstate_flags &= ~toc_bit;
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_DISKINFO;
+		response_count=6;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam0LV_drive)
+	{
+		drvcmd[0]=CMD0_DISKINFO;
+		response_count=6;
+		if(famLV_drive)
+			flags_cmd_out=f_putcmd;
+		else
+			flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		/* possibly longer timeout periods necessary */
+		current_drive->f_multisession=0;
+		drvcmd[0]=CMD2_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[2]=0xAB;
+		drvcmd[3]=0xFF; /* session */
+		response_count=8;
+		flags_cmd_out=f_putcmd;
+	}
+	else if (famT_drive)
+	{
+		current_drive->f_multisession=0;
+		response_count=12;
+		drvcmd[0]=CMDT_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[6]=CDROM_LEADOUT;
+		drvcmd[8]=response_count;
+		drvcmd[9]=0x00;
+	}
+	i=cmd_out();
+	if (i<0) return (i);
+	if ((famT_drive)&&(i<response_count)) return (-100-i);
+	if ((fam1_drive)||(fam2_drive)||(fam0LV_drive))
+		current_drive->xa_byte=infobuf[0];
+	if (fam2_drive)
+	{
+		current_drive->first_session=infobuf[1];
+		current_drive->last_session=infobuf[2];
+		current_drive->n_first_track=infobuf[3];
+		current_drive->n_last_track=infobuf[4];
+		if (current_drive->first_session!=current_drive->last_session)
+		{
+			current_drive->f_multisession=1;
+			current_drive->lba_multi=msf2blk(make32(make16(0,infobuf[5]),make16(infobuf[6],infobuf[7])));
+		}
+#if 0
+		if (current_drive->first_session!=current_drive->last_session)
+		{
+			if (current_drive->last_session<=20)
+				zwanzig=current_drive->last_session+1;
+			else zwanzig=20;
+			for (count=current_drive->first_session;count<zwanzig;count++)
+			{
+				drvcmd[0]=CMD2_DISKINFO;
+				drvcmd[1]=0x02;
+				drvcmd[2]=0xAB;
+				drvcmd[3]=count;
+				response_count=8;
+				flags_cmd_out=f_putcmd;
+				i=cmd_out();
+				if (i<0) return (i);
+				current_drive->msf_multi_n[count]=make32(make16(0,infobuf[5]),make16(infobuf[6],infobuf[7]));
+			}
+			current_drive->diskstate_flags |= multisession_bit;
+		}
+#endif
+		drvcmd[0]=CMD2_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[2]=0xAA;
+		drvcmd[3]=0xFF;
+		response_count=5;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+		if (i<0) return (i);
+		current_drive->size_msf=make32(make16(0,infobuf[2]),make16(infobuf[3],infobuf[4]));
+		current_drive->size_blk=msf2blk(current_drive->size_msf);
+		current_drive->CDsize_frm=current_drive->size_blk+1;
+	}
+	else if (famT_drive)
+	{
+		current_drive->size_msf=make32(make16(infobuf[8],infobuf[9]),make16(infobuf[10],infobuf[11]));
+		current_drive->size_blk=msf2blk(current_drive->size_msf);
+		current_drive->CDsize_frm=current_drive->size_blk+1;
+		current_drive->n_first_track=infobuf[2];
+		current_drive->n_last_track=infobuf[3];
+	}
+	else
+	{
+		current_drive->n_first_track=infobuf[1];
+		current_drive->n_last_track=infobuf[2];
+		current_drive->size_msf=make32(make16(0,infobuf[3]),make16(infobuf[4],infobuf[5]));
+		current_drive->size_blk=msf2blk(current_drive->size_msf);
+		if (famLV_drive) current_drive->CDsize_frm=current_drive->size_blk+1;
+	}
+	current_drive->diskstate_flags |= toc_bit;
+	msg(DBG_TOC,"TocDesc: xa %02X firstt %02X lastt %02X size %08X firstses %02X lastsess %02X\n",
+	    current_drive->xa_byte,
+	    current_drive->n_first_track,
+	    current_drive->n_last_track,
+	    current_drive->size_msf,
+	    current_drive->first_session,
+	    current_drive->last_session);
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ReadTocEntry(int num)
+{
+	int i;
+	
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_READTOC;
+		drvcmd[2]=num;
+		response_count=8;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam2_drive)
+	{
+		/* possibly longer timeout periods necessary */
+		drvcmd[0]=CMD2_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[2]=num;
+		response_count=5;
+		flags_cmd_out=f_putcmd;
+	}
+	else if (fam0LV_drive)
+	{
+		drvcmd[0]=CMD0_READTOC;
+		drvcmd[1]=0x02;
+		drvcmd[2]=num;
+		response_count=8;
+		if (famLV_drive)
+			flags_cmd_out=f_putcmd;
+		else
+		  flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (famT_drive)
+	{
+		response_count=12;
+		drvcmd[0]=CMDT_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[6]=num;
+		drvcmd[8]=response_count;
+		drvcmd[9]=0x00;
+	}
+	i=cmd_out();
+	if (i<0) return (i);
+	if ((famT_drive)&&(i<response_count)) return (-100-i);
+	if ((fam1_drive)||(fam0LV_drive))
+	{
+		current_drive->TocEnt_nixbyte=infobuf[0];
+		i=1;
+	}
+	else if (fam2_drive) i=0;
+	else if (famT_drive) i=5;
+	current_drive->TocEnt_ctl_adr=swap_nibbles(infobuf[i++]);
+	if ((fam1_drive)||(fam0L_drive))
+	{
+		current_drive->TocEnt_number=infobuf[i++];
+		current_drive->TocEnt_format=infobuf[i];
+	}
+	else
+	  {
+	    current_drive->TocEnt_number=num;
+	    current_drive->TocEnt_format=0;
+	  }
+	if (fam1_drive) i=4;
+	else if (fam0LV_drive) i=5;
+	else if (fam2_drive) i=2;
+	else if (famT_drive) i=9;
+	current_drive->TocEnt_address=make32(make16(0,infobuf[i]),
+				     make16(infobuf[i+1],infobuf[i+2]));
+	for (i=0;i<response_count;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_ECS,"TocEntry:%s\n", msgbuf);
+	msg(DBG_TOC,"TocEntry: %02X %02X %02X %02X %08X\n",
+	    current_drive->TocEnt_nixbyte, current_drive->TocEnt_ctl_adr,
+	    current_drive->TocEnt_number, current_drive->TocEnt_format,
+	    current_drive->TocEnt_address);
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ReadPacket(void)
+{
+	int i;
+	
+	clr_cmdbuf();
+	drvcmd[0]=CMD0_PACKET;
+	drvcmd[1]=response_count;
+	if(famL_drive) flags_cmd_out=f_putcmd;
+	else if (fam01_drive)
+		flags_cmd_out=f_putcmd|f_getsta|f_ResponseStatus|f_obey_p_check;
+	else if (fam2_drive) return (-1); /* not implemented yet */
+	else if (famT_drive)
+	{
+		return (-1);
+	}
+	i=cmd_out();
+	return (i);
+}
+/*==========================================================================*/
+static int convert_UPC(u_char *p)
+{
+	int i;
+	
+	p++;
+	if (fam0L_drive) p[13]=0;
+	for (i=0;i<7;i++)
+	{
+		if (fam1_drive) current_drive->UPC_buf[i]=swap_nibbles(*p++);
+		else if (fam0L_drive)
+		{
+			current_drive->UPC_buf[i]=((*p++)<<4)&0xFF;
+			current_drive->UPC_buf[i] |= *p++;
+		}
+		else if (famT_drive)
+		{
+			return (-1);
+		}
+		else /* CD200 */
+		{
+			return (-1);
+		}
+	}
+	current_drive->UPC_buf[6] &= 0xF0;
+	return (0);
+}
+/*==========================================================================*/
+static int cc_ReadUPC(void)
+{
+	int i;
+#if TEST_UPC
+	int block, checksum;
+#endif /* TEST_UPC */ 
+	
+	if (fam2_drive) return (0); /* not implemented yet */
+	if (famT_drive)	return (0); /* not implemented yet */
+	if (famV_drive)	return (0); /* not implemented yet */
+#if 1
+	if (fam0_drive) return (0); /* but it should work */
+#endif
+	
+	current_drive->diskstate_flags &= ~upc_bit;
+#if TEST_UPC
+	for (block=CD_MSF_OFFSET+1;block<CD_MSF_OFFSET+200;block++)
+	{
+#endif /* TEST_UPC */ 
+		clr_cmdbuf();
+		if (fam1_drive)
+		{
+			drvcmd[0]=CMD1_READ_UPC;
+#if TEST_UPC
+			drvcmd[1]=(block>>16)&0xFF;
+			drvcmd[2]=(block>>8)&0xFF;
+			drvcmd[3]=block&0xFF;
+#endif /* TEST_UPC */ 
+			response_count=8;
+			flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+		}
+		else if (fam0L_drive)
+		{
+			drvcmd[0]=CMD0_READ_UPC;
+#if TEST_UPC
+			drvcmd[2]=(block>>16)&0xFF;
+			drvcmd[3]=(block>>8)&0xFF;
+			drvcmd[4]=block&0xFF;
+#endif /* TEST_UPC */ 
+			response_count=0;
+			flags_cmd_out=f_putcmd|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+		}
+		else if (fam2_drive)
+		{
+			return (-1);
+		}
+		else if (famT_drive)
+		{
+			return (-1);
+		}
+		i=cmd_out();
+		if (i<0)
+		{
+			msg(DBG_000,"cc_ReadUPC cmd_out: err %d\n", i);
+			return (i);
+		}
+		if (fam0L_drive)
+		{
+			response_count=16;
+			if (famL_drive) flags_cmd_out=f_putcmd;
+			i=cc_ReadPacket();
+			if (i<0)
+			{
+				msg(DBG_000,"cc_ReadUPC ReadPacket: err %d\n", i);
+				return (i);
+			}
+		}
+#if TEST_UPC
+		checksum=0;
+#endif /* TEST_UPC */ 
+		for (i=0;i<(fam1_drive?8:16);i++)
+		{
+#if TEST_UPC
+			checksum |= infobuf[i];
+#endif /* TEST_UPC */ 
+			sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+		}
+		msgbuf[i*3]=0;
+		msg(DBG_UPC,"UPC info:%s\n", msgbuf);
+#if TEST_UPC
+		if ((checksum&0x7F)!=0) break;
+	}
+#endif /* TEST_UPC */ 
+	current_drive->UPC_ctl_adr=0;
+	if (fam1_drive) i=0;
+	else i=2;
+	if ((infobuf[i]&0x80)!=0)
+	{
+		convert_UPC(&infobuf[i]);
+		current_drive->UPC_ctl_adr = (current_drive->TocEnt_ctl_adr & 0xF0) | 0x02;
+	}
+	for (i=0;i<7;i++)
+		sprintf(&msgbuf[i*3], " %02X", current_drive->UPC_buf[i]);
+	sprintf(&msgbuf[i*3], " (%02X)", current_drive->UPC_ctl_adr);
+	msgbuf[i*3+5]=0;
+	msg(DBG_UPC,"UPC code:%s\n", msgbuf);
+	current_drive->diskstate_flags |= upc_bit;
+	return (0);
+}
+
+static int sbpcd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
+{
+	int i;
+	unsigned char *mcnp = mcn->medium_catalog_number;
+	unsigned char *resp;
+
+	current_drive->diskstate_flags &= ~upc_bit;
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_READ_UPC;
+		response_count=8;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+	}
+	else if (fam0L_drive)
+	{
+		drvcmd[0]=CMD0_READ_UPC;
+		response_count=0;
+		flags_cmd_out=f_putcmd|f_lopsta|f_getsta|f_ResponseStatus|f_obey_p_check|f_bit1;
+	}
+	else if (fam2_drive)
+	{
+		return (-1);
+	}
+	else if (famT_drive)
+	{
+		return (-1);
+	}
+	i=cmd_out();
+	if (i<0)
+	{
+		msg(DBG_000,"cc_ReadUPC cmd_out: err %d\n", i);
+		return (i);
+	}
+	if (fam0L_drive)
+	{
+		response_count=16;
+		if (famL_drive) flags_cmd_out=f_putcmd;
+		i=cc_ReadPacket();
+		if (i<0)
+		{
+			msg(DBG_000,"cc_ReadUPC ReadPacket: err %d\n", i);
+			return (i);
+		}
+	}
+	current_drive->UPC_ctl_adr=0;
+	if (fam1_drive) i=0;
+	else i=2;
+
+	resp = infobuf + i;
+	if (*resp++ == 0x80) {
+		/* packed bcd to single ASCII digits */
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+		*mcnp++ = (*resp++ & 0x0f) + '0';
+		*mcnp++ = (*resp >> 4)     + '0';
+	}
+	*mcnp = '\0';
+
+	current_drive->diskstate_flags |= upc_bit;
+	return (0);
+}
+
+/*==========================================================================*/
+static int cc_CheckMultiSession(void)
+{
+	int i;
+	
+	if (fam2_drive) return (0);
+	current_drive->f_multisession=0;
+	current_drive->lba_multi=0;
+	if (fam0_drive) return (0);
+	clr_cmdbuf();
+	if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_MULTISESS;
+		response_count=6;
+		flags_cmd_out=f_putcmd|f_ResponseStatus|f_obey_p_check;
+		i=cmd_out();
+		if (i<0) return (i);
+		if ((infobuf[0]&0x80)!=0)
+		{
+			current_drive->f_multisession=1;
+			current_drive->lba_multi=msf2blk(make32(make16(0,infobuf[1]),
+							make16(infobuf[2],infobuf[3])));
+		}
+	}
+	else if (famLV_drive)
+	{
+		drvcmd[0]=CMDL_MULTISESS;
+		drvcmd[1]=3;
+		drvcmd[2]=1;
+		response_count=8;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+		if (i<0) return (i);
+		current_drive->lba_multi=msf2blk(make32(make16(0,infobuf[5]),
+						make16(infobuf[6],infobuf[7])));
+	}
+	else if (famT_drive)
+	{
+		response_count=12;
+		drvcmd[0]=CMDT_DISKINFO;
+		drvcmd[1]=0x02;
+		drvcmd[6]=0;
+		drvcmd[8]=response_count;
+		drvcmd[9]=0x40;
+		i=cmd_out();
+		if (i<0) return (i);
+		if (i<response_count) return (-100-i);
+		current_drive->first_session=infobuf[2];
+		current_drive->last_session=infobuf[3];
+		current_drive->track_of_last_session=infobuf[6];
+		if (current_drive->first_session!=current_drive->last_session)
+		{
+			current_drive->f_multisession=1;
+			current_drive->lba_multi=msf2blk(make32(make16(0,infobuf[9]),make16(infobuf[10],infobuf[11])));
+		}
+	}
+	for (i=0;i<response_count;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_MUL,"MultiSession Info:%s (%d)\n", msgbuf, current_drive->lba_multi);
+	if (current_drive->lba_multi>200)
+	{
+		current_drive->f_multisession=1;
+		msg(DBG_MUL,"MultiSession base: %06X\n", current_drive->lba_multi);
+	}
+	return (0);
+}
+/*==========================================================================*/
+#ifdef FUTURE
+static int cc_SubChanInfo(int frame, int count, u_char *buffer)
+	/* "frame" is a RED BOOK (msf-bin) address */
+{
+	int i;
+	
+	if (fam0LV_drive) return (-ENOSYS); /* drive firmware lacks it */
+	if (famT_drive)
+	{
+		return (-1);
+	}
+#if 0
+	if (current_drive->audio_state!=audio_playing) return (-ENODATA);
+#endif
+	clr_cmdbuf();
+	drvcmd[0]=CMD1_SUBCHANINF;
+	drvcmd[1]=(frame>>16)&0xFF;
+	drvcmd[2]=(frame>>8)&0xFF;
+	drvcmd[3]=frame&0xFF;
+	drvcmd[5]=(count>>8)&0xFF;
+	drvcmd[6]=count&0xFF;
+	flags_cmd_out=f_putcmd|f_respo2|f_ResponseStatus|f_obey_p_check;
+	cmd_type=READ_SC;
+	current_drive->frame_size=CD_FRAMESIZE_SUB;
+	i=cmd_out(); /* which buffer to use? */
+	return (i);
+}
+#endif /* FUTURE */ 
+/*==========================================================================*/
+static void __init check_datarate(void)
+{
+	int i=0;
+	
+	msg(DBG_IOX,"check_datarate entered.\n");
+	datarate=0;
+#if TEST_STI
+	for (i=0;i<=1000;i++) printk(".");
+#endif
+	/* set a timer to make (timed_out_delay!=0) after 1.1 seconds */
+#if 1
+	del_timer(&delay_timer);
+#endif
+	delay_timer.expires=jiffies+11*HZ/10;
+	timed_out_delay=0;
+	add_timer(&delay_timer);
+#if 0
+	msg(DBG_TIM,"delay timer started (11*HZ/10).\n");
+#endif
+	do
+	{
+		i=inb(CDi_status);
+		datarate++;
+#if 1
+		if (datarate>0x6FFFFFFF) break;
+#endif 
+	}
+	while (!timed_out_delay);
+	del_timer(&delay_timer);
+#if 0
+	msg(DBG_TIM,"datarate: %04X\n", datarate);
+#endif
+	if (datarate<65536) datarate=65536;
+	maxtim16=datarate*16;
+	maxtim04=datarate*4;
+	maxtim02=datarate*2;
+	maxtim_8=datarate/32;
+#if LONG_TIMING
+	maxtim_data=datarate/100;
+#else
+	maxtim_data=datarate/300;
+#endif /* LONG_TIMING */ 
+#if 0
+	msg(DBG_TIM,"maxtim_8 %d, maxtim_data %d.\n", maxtim_8, maxtim_data);
+#endif
+}
+/*==========================================================================*/
+#if 0
+static int c2_ReadError(int fam)
+{
+	int i;
+	
+	clr_cmdbuf();
+	response_count=9;
+	clr_respo_buf(9);
+	if (fam==1)
+	{
+		drvcmd[0]=CMD0_READ_ERR; /* same as CMD1_ and CMDL_ */
+		i=do_cmd(f_putcmd|f_lopsta|f_getsta|f_ResponseStatus);
+	}
+	else if (fam==2)
+	{
+		drvcmd[0]=CMD2_READ_ERR;
+		i=do_cmd(f_putcmd);
+	}
+	else return (-1);
+	return (i);
+}
+#endif
+/*==========================================================================*/
+static void __init ask_mail(void)
+{
+	int i;
+	
+	msg(DBG_INF, "please mail the following lines to emoenke@gwdg.de\n");
+	msg(DBG_INF, "(don't mail if you are not using the actual kernel):\n");
+	msg(DBG_INF, "%s\n", VERSION);
+	msg(DBG_INF, "address %03X, type %s, drive %s (ID %d)\n",
+	    CDo_command, type, current_drive->drive_model, current_drive->drv_id);
+	for (i=0;i<12;i++)
+		sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_INF,"infobuf =%s\n", msgbuf);
+	for (i=0;i<12;i++)
+		sprintf(&msgbuf[i*3], " %c ", infobuf[i]);
+	msgbuf[i*3]=0;
+	msg(DBG_INF,"infobuf =%s\n", msgbuf);
+}
+/*==========================================================================*/
+static int __init check_version(void)
+{
+	int i, j, l;
+	int teac_possible=0;
+	
+	msg(DBG_INI,"check_version: id=%d, d=%d.\n", current_drive->drv_id, current_drive - D_S);
+	current_drive->drv_type=0;
+
+	/* check for CR-52x, CR-56x, LCS-7260 and ECS-AT */
+	/* clear any pending error state */
+	clr_cmdbuf();
+	drvcmd[0]=CMD0_READ_ERR; /* same as CMD1_ and CMDL_ */
+	response_count=9;
+	flags_cmd_out=f_putcmd;
+	i=cmd_out();
+	if (i<0) msg(DBG_INI,"CMD0_READ_ERR returns %d (ok anyway).\n",i);
+	/* read drive version */
+	clr_cmdbuf();
+	for (i=0;i<12;i++) infobuf[i]=0;
+	drvcmd[0]=CMD0_READ_VER; /* same as CMD1_ and CMDL_ */
+	response_count=12; /* fam1: only 11 */
+	flags_cmd_out=f_putcmd;
+	i=cmd_out();
+	if (i<-1) msg(DBG_INI,"CMD0_READ_VER returns %d\n",i);
+	if (i==-11) teac_possible++;
+	j=0;
+	for (i=0;i<12;i++) j+=infobuf[i];
+	if (j)
+	{
+		for (i=0;i<12;i++)
+			sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_ECS,"infobuf =%s\n", msgbuf);
+		for (i=0;i<12;i++)
+			sprintf(&msgbuf[i*3], " %c ", infobuf[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_ECS,"infobuf =%s\n", msgbuf);
+	}
+	for (i=0;i<4;i++) if (infobuf[i]!=family1[i]) break;
+	if (i==4)
+	{
+		current_drive->drive_model[0]='C';
+		current_drive->drive_model[1]='R';
+		current_drive->drive_model[2]='-';
+		current_drive->drive_model[3]='5';
+		current_drive->drive_model[4]=infobuf[i++];
+		current_drive->drive_model[5]=infobuf[i++];
+		current_drive->drive_model[6]=0;
+		current_drive->drv_type=drv_fam1;
+	}
+	if (!current_drive->drv_type)
+	{
+		for (i=0;i<8;i++) if (infobuf[i]!=family0[i]) break;
+		if (i==8)
+		{
+			current_drive->drive_model[0]='C';
+			current_drive->drive_model[1]='R';
+			current_drive->drive_model[2]='-';
+			current_drive->drive_model[3]='5';
+			current_drive->drive_model[4]='2';
+			current_drive->drive_model[5]='x';
+			current_drive->drive_model[6]=0;
+			current_drive->drv_type=drv_fam0;
+		}
+	}
+	if (!current_drive->drv_type)
+	{
+		for (i=0;i<8;i++) if (infobuf[i]!=familyL[i]) break;
+		if (i==8)
+		{
+			for (j=0;j<8;j++)
+				current_drive->drive_model[j]=infobuf[j];
+			current_drive->drive_model[8]=0;
+			current_drive->drv_type=drv_famL;
+		}
+	}
+	if (!current_drive->drv_type)
+	{
+		for (i=0;i<6;i++) if (infobuf[i]!=familyV[i]) break;
+		if (i==6)
+		{
+			for (j=0;j<6;j++)
+				current_drive->drive_model[j]=infobuf[j];
+			current_drive->drive_model[6]=0;
+			current_drive->drv_type=drv_famV;
+			i+=2; /* 2 blanks before version */
+		}
+	}
+	if (!current_drive->drv_type)
+	{
+		/* check for CD200 */
+		clr_cmdbuf();
+		drvcmd[0]=CMD2_READ_ERR;
+		response_count=9;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+		if (i<0) msg(DBG_INI,"CMD2_READERR returns %d (ok anyway).\n",i);
+		if (i<0) msg(DBG_000,"CMD2_READERR returns %d (ok anyway).\n",i);
+		/* read drive version */
+		clr_cmdbuf();
+		for (i=0;i<12;i++) infobuf[i]=0;
+		if (sbpro_type==1) OUT(CDo_sel_i_d,0);
+#if 0
+		OUT(CDo_reset,0);
+		sbp_sleep(6*HZ);
+		OUT(CDo_enable,current_drive->drv_sel);
+#endif
+		drvcmd[0]=CMD2_READ_VER;
+		response_count=12;
+		flags_cmd_out=f_putcmd;
+		i=cmd_out();
+		if (i<0) msg(DBG_INI,"CMD2_READ_VER returns %d\n",i);
+		if (i==-7) teac_possible++;
+		j=0;
+		for (i=0;i<12;i++) j+=infobuf[i];
+		if (j)
+		{
+			for (i=0;i<12;i++)
+				sprintf(&msgbuf[i*3], " %02X", infobuf[i]);
+			msgbuf[i*3]=0;
+			msg(DBG_IDX,"infobuf =%s\n", msgbuf);
+			for (i=0;i<12;i++)
+				sprintf(&msgbuf[i*3], " %c ", infobuf[i]);
+			msgbuf[i*3]=0;
+			msg(DBG_IDX,"infobuf =%s\n", msgbuf);
+		}
+		if (i>=0)
+		{
+			for (i=0;i<5;i++) if (infobuf[i]!=family2[i]) break;
+			if (i==5)
+			{
+				current_drive->drive_model[0]='C';
+				current_drive->drive_model[1]='D';
+				current_drive->drive_model[2]='2';
+				current_drive->drive_model[3]='0';
+				current_drive->drive_model[4]='0';
+				current_drive->drive_model[5]=infobuf[i++];
+				current_drive->drive_model[6]=infobuf[i++];
+				current_drive->drive_model[7]=0;
+				current_drive->drv_type=drv_fam2;
+			}
+		}
+	}
+	if (!current_drive->drv_type)
+	{
+		/* check for TEAC CD-55A */
+		msg(DBG_TEA,"teac_possible: %d\n",teac_possible);
+		for (j=1;j<=((current_drive->drv_id==0)?3:1);j++)
+		{
+			for (l=1;l<=((current_drive->drv_id==0)?10:1);l++)
+			{
+				msg(DBG_TEA,"TEAC reset #%d-%d.\n", j, l);
+				if (sbpro_type==1) OUT(CDo_reset,0);
+				else
+				{
+					OUT(CDo_enable,current_drive->drv_sel);
+					OUT(CDo_sel_i_d,0);
+					OUT(CDo_command,CMDT_RESET);
+					for (i=0;i<9;i++) OUT(CDo_command,0);
+				}
+				sbp_sleep(5*HZ/10);
+				OUT(CDo_enable,current_drive->drv_sel);
+				OUT(CDo_sel_i_d,0);
+				i=inb(CDi_status);
+				msg(DBG_TEA,"TEAC CDi_status: %02X.\n",i);
+#if 0
+				if (i&s_not_result_ready) continue; /* drive not present or ready */
+#endif
+				i=inb(CDi_info);
+				msg(DBG_TEA,"TEAC CDi_info: %02X.\n",i);
+				if (i==0x55) break; /* drive found */
+			}
+			if (i==0x55) break; /* drive found */
+		}
+		if (i==0x55) /* drive found */
+		{
+			msg(DBG_TEA,"TEAC drive found.\n");
+			clr_cmdbuf();
+			flags_cmd_out=f_putcmd;
+			response_count=12;
+			drvcmd[0]=CMDT_READ_VER;
+			drvcmd[4]=response_count;
+			for (i=0;i<12;i++) infobuf[i]=0;
+			i=cmd_out_T();
+			if (i!=0) msg(DBG_TEA,"cmd_out_T(CMDT_READ_VER) returns %d.\n",i);
+			for (i=1;i<6;i++) if (infobuf[i]!=familyT[i-1]) break;
+			if (i==6)
+			{
+				current_drive->drive_model[0]='C';
+				current_drive->drive_model[1]='D';
+				current_drive->drive_model[2]='-';
+				current_drive->drive_model[3]='5';
+				current_drive->drive_model[4]='5';
+				current_drive->drive_model[5]=0;
+				current_drive->drv_type=drv_famT;
+			}
+		}
+	}
+	if (!current_drive->drv_type)
+	{
+		msg(DBG_TEA,"no drive found at address %03X under ID %d.\n",CDo_command,current_drive->drv_id);
+		return (-522);
+	}
+	for (j=0;j<4;j++) current_drive->firmware_version[j]=infobuf[i+j];
+	if (famL_drive)
+	{
+	  u_char lcs_firm_e1[]="A E1";
+	  u_char lcs_firm_f4[]="A4F4";
+		
+	  for (j=0;j<4;j++)
+	    if (current_drive->firmware_version[j]!=lcs_firm_e1[j]) break;
+	  if (j==4) current_drive->drv_type=drv_e1;
+	  
+	  for (j=0;j<4;j++)
+	    if (current_drive->firmware_version[j]!=lcs_firm_f4[j]) break;
+	  if (j==4) current_drive->drv_type=drv_f4;
+
+	  if (current_drive->drv_type==drv_famL) ask_mail();
+	}
+	else if (famT_drive)
+	{
+		j=infobuf[4]; /* one-byte version??? - here: 0x15 */
+		if (j=='5')
+		{
+			current_drive->firmware_version[0]=infobuf[7];
+			current_drive->firmware_version[1]=infobuf[8];
+			current_drive->firmware_version[2]=infobuf[10];
+			current_drive->firmware_version[3]=infobuf[11];
+		}
+		else
+		{
+			if (j!=0x15) ask_mail();
+			current_drive->firmware_version[0]='0';
+			current_drive->firmware_version[1]='.';
+			current_drive->firmware_version[2]='0'+(j>>4);
+			current_drive->firmware_version[3]='0'+(j&0x0f);
+		}
+	}
+	else /* CR-52x, CR-56x, CD200, ECS-AT */
+	{
+		j = (current_drive->firmware_version[0] & 0x0F) * 100 +
+			(current_drive->firmware_version[2] & 0x0F) *10 +
+				(current_drive->firmware_version[3] & 0x0F);
+		if (fam0_drive)
+		{
+			if (j<200) current_drive->drv_type=drv_199;
+			else if (j<201) current_drive->drv_type=drv_200;
+			else if (j<210) current_drive->drv_type=drv_201;
+			else if (j<211) current_drive->drv_type=drv_210;
+			else if (j<300) current_drive->drv_type=drv_211;
+			else if (j>=300) current_drive->drv_type=drv_300;
+		}
+		else if (fam1_drive)
+		{
+			if (j<100) current_drive->drv_type=drv_099;
+			else
+			{
+				current_drive->drv_type=drv_100;
+				if ((j!=500)&&(j!=102)) ask_mail();
+			}
+		}
+		else if (fam2_drive)
+		{
+			if (current_drive->drive_model[5]=='F')
+			{
+				if ((j!=1)&&(j!=35)&&(j!=200)&&(j!=210))
+				  ask_mail(); /* unknown version at time */
+			}
+			else
+			{
+				msg(DBG_INF,"this CD200 drive is not fully supported yet - only audio will work.\n");
+				if ((j!=101)&&(j!=35))
+				  ask_mail(); /* unknown version at time */
+			}
+		}
+		else if (famV_drive)
+		  {
+		    if ((j==100)||(j==150)) current_drive->drv_type=drv_at;
+		    ask_mail(); /* hopefully we get some feedback by this */
+		  }
+	}
+	msg(DBG_LCS,"drive type %02X\n",current_drive->drv_type);
+	msg(DBG_INI,"check_version done.\n");
+	return (0);
+}
+/*==========================================================================*/
+static void switch_drive(struct sbpcd_drive *p)
+{
+	current_drive = p;
+	OUT(CDo_enable,current_drive->drv_sel);
+	msg(DBG_DID,"drive %d (ID=%d) activated.\n",
+		current_drive - D_S, current_drive->drv_id);
+	return;
+}
+/*==========================================================================*/
+#ifdef PATH_CHECK
+/*
+ * probe for the presence of an interface card
+ */
+static int __init check_card(int port)
+{
+#undef N_RESPO
+#define N_RESPO 20
+	int i, j, k;
+	u_char response[N_RESPO];
+	u_char save_port0;
+	u_char save_port3;
+	
+	msg(DBG_INI,"check_card entered.\n");
+	save_port0=inb(port+0);
+	save_port3=inb(port+3);
+	
+	for (j=0;j<NR_SBPCD;j++)
+	{
+		OUT(port+3,j) ; /* enable drive #j */
+		OUT(port+0,CMD0_PATH_CHECK);
+		for (i=10;i>0;i--) OUT(port+0,0);
+		for (k=0;k<N_RESPO;k++) response[k]=0;
+		for (k=0;k<N_RESPO;k++)
+		{
+			for (i=10000;i>0;i--)
+			{
+				if (inb(port+1)&s_not_result_ready) continue;
+				response[k]=inb(port+0);
+				break;
+			}
+		}
+		for (i=0;i<N_RESPO;i++)
+			sprintf(&msgbuf[i*3], " %02X", response[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_TEA,"path check 00 (%d): %s\n", j, msgbuf);
+		OUT(port+0,CMD0_PATH_CHECK);
+		for (i=10;i>0;i--) OUT(port+0,0);
+		for (k=0;k<N_RESPO;k++) response[k]=0xFF;
+		for (k=0;k<N_RESPO;k++)
+		{
+			for (i=10000;i>0;i--)
+			{
+				if (inb(port+1)&s_not_result_ready) continue;
+				response[k]=inb(port+0);
+				break;
+			}
+		}
+		for (i=0;i<N_RESPO;i++)
+			sprintf(&msgbuf[i*3], " %02X", response[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_TEA,"path check 00 (%d): %s\n", j, msgbuf);
+
+		if (response[0]==0xAA)
+			if (response[1]==0x55)
+				return (0);
+	}
+	for (j=0;j<NR_SBPCD;j++)
+	{
+		OUT(port+3,j) ; /* enable drive #j */
+		OUT(port+0,CMD2_READ_VER);
+		for (i=10;i>0;i--) OUT(port+0,0);
+		for (k=0;k<N_RESPO;k++) response[k]=0;
+		for (k=0;k<N_RESPO;k++)
+		{
+			for (i=1000000;i>0;i--)
+			{
+				if (inb(port+1)&s_not_result_ready) continue;
+				response[k]=inb(port+0);
+				break;
+			}
+		}
+		for (i=0;i<N_RESPO;i++)
+			sprintf(&msgbuf[i*3], " %02X", response[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_TEA,"path check 12 (%d): %s\n", j, msgbuf);
+
+		OUT(port+0,CMD2_READ_VER);
+		for (i=10;i>0;i--) OUT(port+0,0);
+		for (k=0;k<N_RESPO;k++) response[k]=0xFF;
+		for (k=0;k<N_RESPO;k++)
+		{
+			for (i=1000000;i>0;i--)
+			{
+				if (inb(port+1)&s_not_result_ready) continue;
+				response[k]=inb(port+0);
+				break;
+			}
+		}
+		for (i=0;i<N_RESPO;i++)
+			sprintf(&msgbuf[i*3], " %02X", response[i]);
+		msgbuf[i*3]=0;
+		msg(DBG_TEA,"path check 12 (%d): %s\n", j, msgbuf);
+
+		if (response[0]==0xAA)
+			if (response[1]==0x55)
+				return (0);
+	}
+	OUT(port+0,save_port0);
+	OUT(port+3,save_port3);
+	return (0); /* in any case - no real "function" at time */
+}
+#endif /* PATH_CHECK */ 
+/*==========================================================================*/
+/*==========================================================================*/
+/*
+ * probe for the presence of drives on the selected controller
+ */
+static int __init check_drives(void)
+{
+	int i, j;
+	
+	msg(DBG_INI,"check_drives entered.\n");
+	ndrives=0;
+	for (j=0;j<max_drives;j++)
+	{
+		struct sbpcd_drive *p = D_S + ndrives;
+		p->drv_id=j;
+		if (sbpro_type==1) p->drv_sel=(j&0x01)<<1|(j&0x02)>>1;
+		else p->drv_sel=j;
+		switch_drive(p);
+		msg(DBG_INI,"check_drives: drive %d (ID=%d) activated.\n",ndrives,j);
+		msg(DBG_000,"check_drives: drive %d (ID=%d) activated.\n",ndrives,j);
+		i=check_version();
+		if (i<0) msg(DBG_INI,"check_version returns %d.\n",i);
+		else
+		{
+			current_drive->drv_options=drv_pattern[j];
+			if (fam0L_drive) current_drive->drv_options&=~(speed_auto|speed_300|speed_150);
+			msg(DBG_INF, "Drive %d (ID=%d): %.9s (%.4s) at 0x%03X (type %d)\n",
+			    current_drive - D_S,
+			    current_drive->drv_id,
+			    current_drive->drive_model,
+			    current_drive->firmware_version,
+			    CDo_command,
+			    sbpro_type);
+			ndrives++;
+		}
+	}
+	for (j=ndrives;j<NR_SBPCD;j++) D_S[j].drv_id=-1;
+	if (ndrives==0) return (-1);
+	return (0);
+}
+/*==========================================================================*/
+#ifdef FUTURE
+/*
+ *  obtain if requested service disturbs current audio state
+ */            
+static int obey_audio_state(u_char audio_state, u_char func,u_char subfunc)
+{
+	switch (audio_state)                   /* audio status from controller  */
+	{
+	case aud_11: /* "audio play in progress" */
+	case audx11:
+		switch (func)                      /* DOS command code */
+		{
+		case cmd_07: /* input flush  */
+		case cmd_0d: /* open device  */
+		case cmd_0e: /* close device */
+		case cmd_0c: /* ioctl output */
+			return (1);
+		case cmd_03: /* ioctl input  */
+			switch (subfunc)
+				/* DOS ioctl input subfunction */
+			{
+			case cxi_00:
+			case cxi_06:
+			case cxi_09:
+				return (1);
+			default:
+				return (ERROR15);
+			}
+			return (1);
+		default:
+			return (ERROR15);
+		}
+		return (1);
+	case aud_12:                  /* "audio play paused"      */
+	case audx12:
+		return (1);
+	default:
+		return (2);
+	}
+}
+/*==========================================================================*/
+/* allowed is only
+ * ioctl_o, flush_input, open_device, close_device, 
+ * tell_address, tell_volume, tell_capabiliti,
+ * tell_framesize, tell_CD_changed, tell_audio_posi
+ */
+static int check_allowed1(u_char func1, u_char func2)
+{
+#if 000
+	if (func1==ioctl_o) return (0);
+	if (func1==read_long) return (-1);
+	if (func1==read_long_prefetch) return (-1);
+	if (func1==seek) return (-1);
+	if (func1==audio_play) return (-1);
+	if (func1==audio_pause) return (-1);
+	if (func1==audio_resume) return (-1);
+	if (func1!=ioctl_i) return (0);
+	if (func2==tell_SubQ_run_tot) return (-1);
+	if (func2==tell_cdsize) return (-1);
+	if (func2==tell_TocDescrip) return (-1);
+	if (func2==tell_TocEntry) return (-1);
+	if (func2==tell_subQ_info) return (-1);
+	if (fam1_drive) if (func2==tell_SubChanInfo) return (-1);
+	if (func2==tell_UPC) return (-1);
+#else
+	return (0);
+#endif
+}
+/*==========================================================================*/
+static int check_allowed2(u_char func1, u_char func2)
+{
+#if 000
+	if (func1==read_long) return (-1);
+	if (func1==read_long_prefetch) return (-1);
+	if (func1==seek) return (-1);
+	if (func1==audio_play) return (-1);
+  if (func1!=ioctl_o) return (0);
+	if (fam1_drive)
+	{
+		if (func2==EjectDisk) return (-1);
+		if (func2==CloseTray) return (-1);
+	}
+#else
+	return (0);
+#endif
+}
+/*==========================================================================*/
+static int check_allowed3(u_char func1, u_char func2)
+{
+#if 000
+	if (func1==ioctl_i)
+	{
+		if (func2==tell_address) return (0);
+		if (func2==tell_capabiliti) return (0);
+		if (func2==tell_CD_changed) return (0);
+		if (fam0L_drive) if (func2==tell_SubChanInfo) return (0);
+		return (-1);
+	}
+	if (func1==ioctl_o)
+	{
+		if (func2==DriveReset) return (0);
+		if (fam0L_drive)
+		{
+			if (func2==EjectDisk) return (0);
+			if (func2==LockDoor) return (0);
+	  if (func2==CloseTray) return (0);
+		}
+		return (-1);
+    }
+	if (func1==flush_input) return (-1);
+	if (func1==read_long) return (-1);
+	if (func1==read_long_prefetch) return (-1);
+	if (func1==seek) return (-1);
+	if (func1==audio_play) return (-1);
+	if (func1==audio_pause) return (-1);
+	if (func1==audio_resume) return (-1);
+#else
+	return (0);
+#endif
+}
+/*==========================================================================*/
+static int seek_pos_audio_end(void)
+{
+	int i;
+
+	i=msf2blk(current_drive->pos_audio_end)-1;
+	if (i<0) return (-1);
+	i=cc_Seek(i,0);
+	return (i);
+}
+#endif /* FUTURE */ 
+/*==========================================================================*/
+static int ReadToC(void)
+{
+	int i, j;
+	current_drive->diskstate_flags &= ~toc_bit;
+	current_drive->ored_ctl_adr=0;
+	/* special handling of CD-I HE */
+	if ((current_drive->n_first_track == 2 && current_drive->n_last_track == 2) ||
+             current_drive->xa_byte == 0x10)
+        {
+		current_drive->TocBuffer[1].nixbyte=0;
+		current_drive->TocBuffer[1].ctl_adr=0x40;
+		current_drive->TocBuffer[1].number=1;
+		current_drive->TocBuffer[1].format=0;
+		current_drive->TocBuffer[1].address=blk2msf(0);
+		current_drive->ored_ctl_adr |= 0x40;
+		current_drive->n_first_track = 1;
+		current_drive->n_last_track = 1;
+		current_drive->xa_byte = 0x10;
+                j = 2;
+        } else
+	for (j=current_drive->n_first_track;j<=current_drive->n_last_track;j++)
+	{
+		i=cc_ReadTocEntry(j);
+		if (i<0)
+		{
+			msg(DBG_INF,"cc_ReadTocEntry(%d) returns %d.\n",j,i);
+			return (i);
+		}
+		current_drive->TocBuffer[j].nixbyte=current_drive->TocEnt_nixbyte;
+		current_drive->TocBuffer[j].ctl_adr=current_drive->TocEnt_ctl_adr;
+		current_drive->TocBuffer[j].number=current_drive->TocEnt_number;
+		current_drive->TocBuffer[j].format=current_drive->TocEnt_format;
+		current_drive->TocBuffer[j].address=current_drive->TocEnt_address;
+		current_drive->ored_ctl_adr |= current_drive->TocEnt_ctl_adr;
+	}
+	/* fake entry for LeadOut Track */
+	current_drive->TocBuffer[j].nixbyte=0;
+	current_drive->TocBuffer[j].ctl_adr=0;
+	current_drive->TocBuffer[j].number=CDROM_LEADOUT;
+	current_drive->TocBuffer[j].format=0;
+	current_drive->TocBuffer[j].address=current_drive->size_msf;
+	
+	current_drive->diskstate_flags |= toc_bit;
+	return (0);
+}
+/*==========================================================================*/
+static int DiskInfo(void)
+{
+	int i, j;
+	
+	current_drive->mode=READ_M1;
+	
+#undef LOOP_COUNT
+#define LOOP_COUNT 10 /* needed for some "old" drives */
+	
+	msg(DBG_000,"DiskInfo entered.\n");
+	for (j=1;j<LOOP_COUNT;j++)
+	{
+#if 0
+		i=SetSpeed();
+		if (i<0)
+		{
+			msg(DBG_INF,"DiskInfo: SetSpeed returns %d\n", i);
+			continue;
+		}
+		i=cc_ModeSense();
+		if (i<0)
+		{
+			msg(DBG_INF,"DiskInfo: cc_ModeSense returns %d\n", i);
+			continue;
+		}
+#endif
+		i=cc_ReadCapacity();
+		if (i>=0) break;
+		msg(DBG_INF,"DiskInfo: ReadCapacity #%d returns %d\n", j, i);
+#if 0
+		i=cc_DriveReset();
+#endif
+		if (!fam0_drive && j == 2) break;
+	}
+	if (j==LOOP_COUNT) return (-33); /* give up */
+	
+	i=cc_ReadTocDescr();
+	if (i<0)
+	{
+		msg(DBG_INF,"DiskInfo: ReadTocDescr returns %d\n", i);
+		return (i);
+	}
+	i=ReadToC();
+	if (i<0)
+	{
+		msg(DBG_INF,"DiskInfo: ReadToC returns %d\n", i);
+		return (i);
+	}
+	i=cc_CheckMultiSession();
+	if (i<0)
+	{
+		msg(DBG_INF,"DiskInfo: cc_CheckMultiSession returns %d\n", i);
+		return (i);
+	}
+	if (current_drive->f_multisession) current_drive->sbp_bufsiz=1;  /* possibly a weird PhotoCD */
+	else current_drive->sbp_bufsiz=buffers;
+	i=cc_ReadTocEntry(current_drive->n_first_track);
+	if (i<0)
+	{
+		msg(DBG_INF,"DiskInfo: cc_ReadTocEntry(1) returns %d\n", i);
+		return (i);
+	}
+	i=cc_ReadUPC();
+	if (i<0) msg(DBG_INF,"DiskInfo: cc_ReadUPC returns %d\n", i);
+	if ((fam0L_drive) && (current_drive->xa_byte==0x20 || current_drive->xa_byte == 0x10))
+	{
+		/* XA disk with old drive */
+		cc_ModeSelect(CD_FRAMESIZE_RAW1);
+		cc_ModeSense();
+	}
+	if (famT_drive)	cc_prep_mode_T();
+	msg(DBG_000,"DiskInfo done.\n");
+	return (0);
+}
+
+static int sbpcd_drive_status(struct cdrom_device_info *cdi, int slot_nr)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	int st;
+
+	if (CDSL_CURRENT != slot_nr) {
+		 /* we have no changer support */
+		 return -EINVAL;
+	}
+
+        cc_ReadStatus();
+	st=ResponseStatus();
+	if (st<0)
+	{
+		msg(DBG_INF,"sbpcd_drive_status: timeout.\n");
+		return (0);
+	}
+	msg(DBG_000,"Drive Status: door_locked =%d.\n", st_door_locked);
+	msg(DBG_000,"Drive Status: door_closed =%d.\n", st_door_closed);
+	msg(DBG_000,"Drive Status: caddy_in =%d.\n", st_caddy_in);
+	msg(DBG_000,"Drive Status: disk_ok =%d.\n", st_diskok);
+	msg(DBG_000,"Drive Status: spinning =%d.\n", st_spinning);
+	msg(DBG_000,"Drive Status: busy =%d.\n", st_busy);
+
+#if 0
+  if (!(p->status_bits & p_door_closed)) return CDS_TRAY_OPEN;
+  if (p->status_bits & p_disk_ok) return CDS_DISC_OK;
+  if (p->status_bits & p_disk_in) return CDS_DRIVE_NOT_READY;
+
+  return CDS_NO_DISC;
+#else
+  if (p->status_bits & p_spinning) return CDS_DISC_OK;
+/*  return CDS_TRAY_OPEN; */
+  return CDS_NO_DISC;
+  
+#endif
+
+}
+
+
+/*==========================================================================*/
+#ifdef FUTURE
+/*
+ *  called always if driver gets entered
+ *  returns 0 or ERROR2 or ERROR15
+ */
+static int prepare(u_char func, u_char subfunc)
+{
+	int i;
+	
+	if (fam0L_drive)
+	{
+		i=inb(CDi_status);
+		if (i&s_attention) GetStatus();
+	}
+	else if (fam1_drive) GetStatus();
+	else if (fam2_drive) GetStatus();
+	else if (famT_drive) GetStatus();
+	if (current_drive->CD_changed==0xFF)
+	{
+		current_drive->diskstate_flags=0;
+		current_drive->audio_state=0;
+		if (!st_diskok)
+		{
+			i=check_allowed1(func,subfunc);
+			if (i<0) return (-2);
+		}
+		else 
+		{
+			i=check_allowed3(func,subfunc);
+			if (i<0)
+			{
+				current_drive->CD_changed=1;
+				return (-15);
+			}
+		}
+	}
+	else
+	{
+		if (!st_diskok)
+		{
+			current_drive->diskstate_flags=0;
+			current_drive->audio_state=0;
+			i=check_allowed1(func,subfunc);
+			if (i<0) return (-2);
+		}
+		else
+		{ 
+			if (st_busy)
+			{
+				if (current_drive->audio_state!=audio_pausing)
+				{
+					i=check_allowed2(func,subfunc);
+					if (i<0) return (-2);
+				}
+			}
+			else
+			{
+				if (current_drive->audio_state==audio_playing) seek_pos_audio_end();
+				current_drive->audio_state=0;
+			}
+			if (!frame_size_valid)
+			{
+				i=DiskInfo();
+				if (i<0)
+				{
+					current_drive->diskstate_flags=0;
+					current_drive->audio_state=0;
+					i=check_allowed1(func,subfunc);
+					if (i<0) return (-2);
+				}
+			}
+		}
+    }
+	return (0);
+}
+#endif /* FUTURE */ 
+/*==========================================================================*/
+/*==========================================================================*/
+/*
+ * Check the results of the "get status" command.
+ */
+static int sbp_status(void)
+{
+	int st;
+	
+	st=ResponseStatus();
+	if (st<0)
+	{
+		msg(DBG_INF,"sbp_status: timeout.\n");
+		return (0);
+	}
+	
+	if (!st_spinning) msg(DBG_SPI,"motor got off - ignoring.\n");
+	
+	if (st_check) 
+	{
+		msg(DBG_INF,"st_check detected - retrying.\n");
+		return (0);
+	}
+	if (!st_door_closed)
+	{
+		msg(DBG_INF,"door is open - retrying.\n");
+		return (0);
+	}
+	if (!st_caddy_in)
+	{
+		msg(DBG_INF,"disk removed - retrying.\n");
+		return (0);
+	}
+	if (!st_diskok) 
+	{
+		msg(DBG_INF,"!st_diskok detected - retrying.\n");
+		return (0);
+	}
+	if (st_busy) 
+	{
+		msg(DBG_INF,"st_busy detected - retrying.\n");
+		return (0);
+	}
+	return (1);
+}
+/*==========================================================================*/
+		
+static int sbpcd_get_last_session(struct cdrom_device_info *cdi, struct cdrom_multisession *ms_infp)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	ms_infp->addr_format = CDROM_LBA;
+	ms_infp->addr.lba    = p->lba_multi;
+	if (p->f_multisession)
+		ms_infp->xa_flag=1; /* valid redirection address */
+	else
+		ms_infp->xa_flag=0; /* invalid redirection address */
+
+	return  0;
+}
+
+/*==========================================================================*/
+/*==========================================================================*/
+/*
+ * ioctl support
+ */
+static int sbpcd_dev_ioctl(struct cdrom_device_info *cdi, u_int cmd,
+		      u_long arg)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	int i;
+	
+	msg(DBG_IO2,"ioctl(%s, 0x%08lX, 0x%08lX)\n", cdi->name, cmd, arg);
+	if (p->drv_id==-1) {
+		msg(DBG_INF, "ioctl: bad device: %s\n", cdi->name);
+		return (-ENXIO);             /* no such drive */
+	}
+	down(&ioctl_read_sem);
+	if (p != current_drive)
+		switch_drive(p);
+	
+	msg(DBG_IO2,"ioctl: device %s, request %04X\n",cdi->name,cmd);
+	switch (cmd) 		/* Sun-compatible */
+	{
+	case DDIOCSDBG:		/* DDI Debug */
+		if (!capable(CAP_SYS_ADMIN)) RETURN_UP(-EPERM);
+		i=sbpcd_dbg_ioctl(arg,1);
+		RETURN_UP(i);
+	case CDROMRESET:      /* hard reset the drive */
+		msg(DBG_IOC,"ioctl: CDROMRESET entered.\n");
+		i=DriveReset();
+		current_drive->audio_state=0;
+		RETURN_UP(i);
+		
+	case CDROMREADMODE1:
+		msg(DBG_IOC,"ioctl: CDROMREADMODE1 requested.\n");
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */
+		cc_ModeSelect(CD_FRAMESIZE);
+		cc_ModeSense();
+		current_drive->mode=READ_M1;
+		RETURN_UP(0);
+		
+	case CDROMREADMODE2: /* not usable at the moment */
+		msg(DBG_IOC,"ioctl: CDROMREADMODE2 requested.\n");
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */
+		cc_ModeSelect(CD_FRAMESIZE_RAW1);
+		cc_ModeSense();
+		current_drive->mode=READ_M2;
+		RETURN_UP(0);
+		
+	case CDROMAUDIOBUFSIZ: /* configure the audio buffer size */
+		msg(DBG_IOC,"ioctl: CDROMAUDIOBUFSIZ entered.\n");
+		if (current_drive->sbp_audsiz>0) vfree(current_drive->aud_buf);
+		current_drive->aud_buf=NULL;
+		current_drive->sbp_audsiz=arg;
+		
+		if (current_drive->sbp_audsiz>16)
+		{
+			current_drive->sbp_audsiz = 0;
+			RETURN_UP(current_drive->sbp_audsiz);
+		}
+	
+		if (current_drive->sbp_audsiz>0)
+		{
+			current_drive->aud_buf=(u_char *) vmalloc(current_drive->sbp_audsiz*CD_FRAMESIZE_RAW);
+			if (current_drive->aud_buf==NULL)
+			{
+				msg(DBG_INF,"audio buffer (%d frames) not available.\n",current_drive->sbp_audsiz);
+				current_drive->sbp_audsiz=0;
+			}
+			else msg(DBG_INF,"audio buffer size: %d frames.\n",current_drive->sbp_audsiz);
+		}
+		RETURN_UP(current_drive->sbp_audsiz);
+
+	case CDROMREADAUDIO:
+	{ /* start of CDROMREADAUDIO */
+		int i=0, j=0, frame, block=0;
+		u_int try=0;
+		u_long timeout;
+		u_char *p;
+		u_int data_tries = 0;
+		u_int data_waits = 0;
+		u_int data_retrying = 0;
+		int status_tries;
+		int error_flag;
+		
+		msg(DBG_IOC,"ioctl: CDROMREADAUDIO entered.\n");
+		if (fam0_drive) RETURN_UP(-EINVAL);
+		if (famL_drive) RETURN_UP(-EINVAL);
+		if (famV_drive) RETURN_UP(-EINVAL);
+		if (famT_drive) RETURN_UP(-EINVAL);
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */ 
+		if (current_drive->aud_buf==NULL) RETURN_UP(-EINVAL);
+		if (copy_from_user(&read_audio, (void __user *)arg,
+				   sizeof(struct cdrom_read_audio)))
+			RETURN_UP(-EFAULT);
+		if (read_audio.nframes < 0 || read_audio.nframes>current_drive->sbp_audsiz) RETURN_UP(-EINVAL);
+		if (!access_ok(VERIFY_WRITE, read_audio.buf,
+			      read_audio.nframes*CD_FRAMESIZE_RAW))
+                	RETURN_UP(-EFAULT);
+		
+		if (read_audio.addr_format==CDROM_MSF) /* MSF-bin specification of where to start */
+			block=msf2lba(&read_audio.addr.msf.minute);
+		else if (read_audio.addr_format==CDROM_LBA) /* lba specification of where to start */
+			block=read_audio.addr.lba;
+		else RETURN_UP(-EINVAL);
+#if 000
+		i=cc_SetSpeed(speed_150,0,0);
+		if (i) msg(DBG_AUD,"read_audio: SetSpeed error %d\n", i);
+#endif
+		msg(DBG_AUD,"read_audio: lba: %d, msf: %06X\n",
+		    block, blk2msf(block));
+		msg(DBG_AUD,"read_audio: before cc_ReadStatus.\n");
+#if OLD_BUSY
+		while (busy_data) sbp_sleep(HZ/10); /* wait a bit */
+		busy_audio=1;
+#endif /* OLD_BUSY */ 
+		error_flag=0;
+		for (data_tries=5; data_tries>0; data_tries--)
+		{
+			msg(DBG_AUD,"data_tries=%d ...\n", data_tries);
+			current_drive->mode=READ_AU;
+			cc_ModeSelect(CD_FRAMESIZE_RAW);
+			cc_ModeSense();
+			for (status_tries=3; status_tries > 0; status_tries--)
+			{
+				flags_cmd_out |= f_respo3;
+				cc_ReadStatus();
+				if (sbp_status() != 0) break;
+				if (st_check) cc_ReadError();
+				sbp_sleep(1);    /* wait a bit, try again */
+			}
+			if (status_tries == 0)
+			{
+				msg(DBG_AUD,"read_audio: sbp_status: failed after 3 tries in line %d.\n", __LINE__);
+				continue;
+			}
+			msg(DBG_AUD,"read_audio: sbp_status: ok.\n");
+			
+			flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus | f_obey_p_check;
+			if (fam0L_drive)
+			{
+				flags_cmd_out |= f_lopsta | f_getsta | f_bit1;
+				cmd_type=READ_M2;
+				drvcmd[0]=CMD0_READ_XA; /* "read XA frames", old drives */
+				drvcmd[1]=(block>>16)&0x000000ff;
+				drvcmd[2]=(block>>8)&0x000000ff;
+				drvcmd[3]=block&0x000000ff;
+				drvcmd[4]=0;
+				drvcmd[5]=read_audio.nframes; /* # of frames */
+				drvcmd[6]=0;
+			}
+			else if (fam1_drive)
+			{
+				drvcmd[0]=CMD1_READ; /* "read frames", new drives */
+				lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+				drvcmd[4]=0;
+				drvcmd[5]=0;
+				drvcmd[6]=read_audio.nframes; /* # of frames */
+			}
+			else if (fam2_drive)
+			{
+				drvcmd[0]=CMD2_READ_XA2;
+				lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+				drvcmd[4]=0;
+				drvcmd[5]=read_audio.nframes; /* # of frames */
+				drvcmd[6]=0x11; /* raw mode */
+			}
+			else if (famT_drive) /* CD-55A: not tested yet */
+			{
+			}
+			msg(DBG_AUD,"read_audio: before giving \"read\" command.\n");
+			flags_cmd_out=f_putcmd;
+			response_count=0;
+			i=cmd_out();
+			if (i<0) msg(DBG_INF,"error giving READ AUDIO command: %0d\n", i);
+			sbp_sleep(0);
+			msg(DBG_AUD,"read_audio: after giving \"read\" command.\n");
+			for (frame=1;frame<2 && !error_flag; frame++)
+			{
+				try=maxtim_data;
+				for (timeout=jiffies+9*HZ; ; )
+				{
+					for ( ; try!=0;try--)
+					{
+						j=inb(CDi_status);
+						if (!(j&s_not_data_ready)) break;
+						if (!(j&s_not_result_ready)) break;
+						if (fam0L_drive) if (j&s_attention) break;
+					}
+					if (try != 0 || time_after_eq(jiffies, timeout)) break;
+					if (data_retrying == 0) data_waits++;
+					data_retrying = 1;
+					sbp_sleep(1);
+					try = 1;
+				}
+				if (try==0)
+				{
+					msg(DBG_INF,"read_audio: sbp_data: CDi_status timeout.\n");
+					error_flag++;
+					break;
+				}
+				msg(DBG_AUD,"read_audio: sbp_data: CDi_status ok.\n");
+				if (j&s_not_data_ready)
+				{
+					msg(DBG_INF, "read_audio: sbp_data: DATA_READY timeout.\n");
+					error_flag++;
+					break;
+				}
+				msg(DBG_AUD,"read_audio: before reading data.\n");
+				error_flag=0;
+				p = current_drive->aud_buf;
+				if (sbpro_type==1) OUT(CDo_sel_i_d,1);
+				if (do_16bit)
+				{
+					u_short *p2 = (u_short *) p;
+
+					for (; (u_char *) p2 < current_drive->aud_buf + read_audio.nframes*CD_FRAMESIZE_RAW;)
+				  	{
+						if ((inb_p(CDi_status)&s_not_data_ready)) continue;
+
+						/* get one sample */
+						*p2++ = inw_p(CDi_data);
+						*p2++ = inw_p(CDi_data);
+					}
+				} else {
+					for (; p < current_drive->aud_buf + read_audio.nframes*CD_FRAMESIZE_RAW;)
+				  	{
+						if ((inb_p(CDi_status)&s_not_data_ready)) continue;
+
+						/* get one sample */
+						*p++ = inb_p(CDi_data);
+						*p++ = inb_p(CDi_data);
+						*p++ = inb_p(CDi_data);
+						*p++ = inb_p(CDi_data);
+					}
+				}
+				if (sbpro_type==1) OUT(CDo_sel_i_d,0);
+				data_retrying = 0;
+			}
+			msg(DBG_AUD,"read_audio: after reading data.\n");
+			if (error_flag)    /* must have been spurious D_RDY or (ATTN&&!D_RDY) */
+			{
+				msg(DBG_AUD,"read_audio: read aborted by drive\n");
+#if 0000
+				i=cc_DriveReset();                /* ugly fix to prevent a hang */
+#else
+				i=cc_ReadError();
+#endif
+				continue;
+			}
+			if (fam0L_drive)
+			{
+				i=maxtim_data;
+				for (timeout=jiffies+9*HZ; time_before(jiffies, timeout); timeout--)
+				{
+					for ( ;i!=0;i--)
+					{
+						j=inb(CDi_status);
+						if (!(j&s_not_data_ready)) break;
+						if (!(j&s_not_result_ready)) break;
+						if (j&s_attention) break;
+					}
+					if (i != 0 || time_after_eq(jiffies, timeout)) break;
+					sbp_sleep(0);
+					i = 1;
+				}
+				if (i==0) msg(DBG_AUD,"read_audio: STATUS TIMEOUT AFTER READ");
+				if (!(j&s_attention))
+				{
+					msg(DBG_AUD,"read_audio: sbp_data: timeout waiting DRV_ATTN - retrying\n");
+					i=cc_DriveReset();  /* ugly fix to prevent a hang */
+					continue;
+				}
+			}
+			do
+			{
+				if (fam0L_drive) cc_ReadStatus();
+				i=ResponseStatus();  /* builds status_bits, returns orig. status (old) or faked p_success (new) */
+				if (i<0) { msg(DBG_AUD,
+					       "read_audio: cc_ReadStatus error after read: %02X\n",
+					       current_drive->status_bits);
+					   continue; /* FIXME */
+				   }
+			}
+			while ((fam0L_drive)&&(!st_check)&&(!(i&p_success)));
+			if (st_check)
+			{
+				i=cc_ReadError();
+				msg(DBG_AUD,"read_audio: cc_ReadError was necessary after read: %02X\n",i);
+				continue;
+			}
+			if (copy_to_user(read_audio.buf,
+					 current_drive->aud_buf,
+					 read_audio.nframes * CD_FRAMESIZE_RAW))
+				RETURN_UP(-EFAULT);
+			msg(DBG_AUD,"read_audio: copy_to_user done.\n");
+			break;
+		}
+		cc_ModeSelect(CD_FRAMESIZE);
+		cc_ModeSense();
+		current_drive->mode=READ_M1;
+#if OLD_BUSY
+		busy_audio=0;
+#endif /* OLD_BUSY */ 
+		if (data_tries == 0)
+		{
+			msg(DBG_AUD,"read_audio: failed after 5 tries in line %d.\n", __LINE__);
+			RETURN_UP(-EIO);
+		}
+		msg(DBG_AUD,"read_audio: successful return.\n");
+		RETURN_UP(0);
+	} /* end of CDROMREADAUDIO */
+		
+	default:
+		msg(DBG_IOC,"ioctl: unknown function request %04X\n", cmd);
+		RETURN_UP(-EINVAL);
+	} /* end switch(cmd) */
+}
+
+static int sbpcd_audio_ioctl(struct cdrom_device_info *cdi, u_int cmd,
+		       void * arg)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	int i, st, j;
+	
+	msg(DBG_IO2,"ioctl(%s, 0x%08lX, 0x%08p)\n", cdi->name, cmd, arg);
+	if (p->drv_id==-1) {
+		msg(DBG_INF, "ioctl: bad device: %s\n", cdi->name);
+		return (-ENXIO);             /* no such drive */
+	}
+	down(&ioctl_read_sem);
+	if (p != current_drive)
+		switch_drive(p);
+	
+	msg(DBG_IO2,"ioctl: device %s, request %04X\n",cdi->name,cmd);
+	switch (cmd) 		/* Sun-compatible */
+	{
+		
+	case CDROMPAUSE:     /* Pause the drive */
+		msg(DBG_IOC,"ioctl: CDROMPAUSE entered.\n");
+		/* pause the drive unit when it is currently in PLAY mode,         */
+		/* or reset the starting and ending locations when in PAUSED mode. */
+		/* If applicable, at the next stopping point it reaches            */
+		/* the drive will discontinue playing.                             */
+		switch (current_drive->audio_state)
+		{
+		case audio_playing:
+			if (famL_drive) i=cc_ReadSubQ();
+			else i=cc_Pause_Resume(1);
+			if (i<0) RETURN_UP(-EIO);
+			if (famL_drive) i=cc_Pause_Resume(1);
+			else i=cc_ReadSubQ();
+			if (i<0) RETURN_UP(-EIO);
+			current_drive->pos_audio_start=current_drive->SubQ_run_tot;
+			current_drive->audio_state=audio_pausing;
+			RETURN_UP(0);
+		case audio_pausing:
+			i=cc_Seek(current_drive->pos_audio_start,1);
+			if (i<0) RETURN_UP(-EIO);
+			RETURN_UP(0);
+		default:
+			RETURN_UP(-EINVAL);
+		}
+		
+	case CDROMRESUME: /* resume paused audio play */
+		msg(DBG_IOC,"ioctl: CDROMRESUME entered.\n");
+		/* resume playing audio tracks when a previous PLAY AUDIO call has  */
+		/* been paused with a PAUSE command.                                */
+		/* It will resume playing from the location saved in SubQ_run_tot.  */
+		if (current_drive->audio_state!=audio_pausing) RETURN_UP(-EINVAL);
+		if (famL_drive)
+			i=cc_PlayAudio(current_drive->pos_audio_start,
+				       current_drive->pos_audio_end);
+		else i=cc_Pause_Resume(3);
+		if (i<0) RETURN_UP(-EIO);
+		current_drive->audio_state=audio_playing;
+		RETURN_UP(0);
+		
+	case CDROMPLAYMSF:
+		msg(DBG_IOC,"ioctl: CDROMPLAYMSF entered.\n");
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */ 
+		if (current_drive->audio_state==audio_playing)
+		{
+			i=cc_Pause_Resume(1);
+			if (i<0) RETURN_UP(-EIO);
+			i=cc_ReadSubQ();
+			if (i<0) RETURN_UP(-EIO);
+			current_drive->pos_audio_start=current_drive->SubQ_run_tot;
+			i=cc_Seek(current_drive->pos_audio_start,1);
+		}
+		memcpy(&msf, (void *) arg, sizeof(struct cdrom_msf));
+		/* values come as msf-bin */
+		current_drive->pos_audio_start = (msf.cdmsf_min0<<16) |
+                        (msf.cdmsf_sec0<<8) |
+				msf.cdmsf_frame0;
+		current_drive->pos_audio_end = (msf.cdmsf_min1<<16) |
+			(msf.cdmsf_sec1<<8) |
+				msf.cdmsf_frame1;
+		msg(DBG_IOX,"ioctl: CDROMPLAYMSF %08X %08X\n",
+		    current_drive->pos_audio_start,current_drive->pos_audio_end);
+		i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
+		if (i<0)
+		{
+			msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
+			DriveReset();
+			current_drive->audio_state=0;
+			RETURN_UP(-EIO);
+		}
+		current_drive->audio_state=audio_playing;
+		RETURN_UP(0);
+		
+	case CDROMPLAYTRKIND: /* Play a track.  This currently ignores index. */
+		msg(DBG_IOC,"ioctl: CDROMPLAYTRKIND entered.\n");
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */ 
+		if (current_drive->audio_state==audio_playing)
+		{
+			msg(DBG_IOX,"CDROMPLAYTRKIND: already audio_playing.\n");
+#if 1
+			RETURN_UP(0); /* just let us play on */
+#else
+			RETURN_UP(-EINVAL); /* play on, but say "error" */
+#endif
+		}
+		memcpy(&ti,(void *) arg,sizeof(struct cdrom_ti));
+		msg(DBG_IOX,"ioctl: trk0: %d, ind0: %d, trk1:%d, ind1:%d\n",
+		    ti.cdti_trk0,ti.cdti_ind0,ti.cdti_trk1,ti.cdti_ind1);
+		if (ti.cdti_trk0<current_drive->n_first_track) RETURN_UP(-EINVAL);
+		if (ti.cdti_trk0>current_drive->n_last_track) RETURN_UP(-EINVAL);
+		if (ti.cdti_trk1<ti.cdti_trk0) ti.cdti_trk1=ti.cdti_trk0;
+		if (ti.cdti_trk1>current_drive->n_last_track) ti.cdti_trk1=current_drive->n_last_track;
+		current_drive->pos_audio_start=current_drive->TocBuffer[ti.cdti_trk0].address;
+		current_drive->pos_audio_end=current_drive->TocBuffer[ti.cdti_trk1+1].address;
+		i=cc_PlayAudio(current_drive->pos_audio_start,current_drive->pos_audio_end);
+		if (i<0)
+		{
+			msg(DBG_INF,"ioctl: cc_PlayAudio returns %d\n",i);
+			DriveReset();
+			current_drive->audio_state=0;
+			RETURN_UP(-EIO);
+		}
+		current_drive->audio_state=audio_playing;
+		RETURN_UP(0);
+		
+	case CDROMREADTOCHDR:        /* Read the table of contents header */
+		msg(DBG_IOC,"ioctl: CDROMREADTOCHDR entered.\n");
+		tochdr.cdth_trk0=current_drive->n_first_track;
+		tochdr.cdth_trk1=current_drive->n_last_track;
+		memcpy((void *) arg, &tochdr, sizeof(struct cdrom_tochdr));
+		RETURN_UP(0);
+		
+	case CDROMREADTOCENTRY:      /* Read an entry in the table of contents */
+		msg(DBG_IOC,"ioctl: CDROMREADTOCENTRY entered.\n");
+		memcpy(&tocentry, (void *) arg, sizeof(struct cdrom_tocentry));
+		i=tocentry.cdte_track;
+		if (i==CDROM_LEADOUT) i=current_drive->n_last_track+1;
+		else if (i<current_drive->n_first_track||i>current_drive->n_last_track)
+                  RETURN_UP(-EINVAL);
+		tocentry.cdte_adr=current_drive->TocBuffer[i].ctl_adr&0x0F;
+		tocentry.cdte_ctrl=(current_drive->TocBuffer[i].ctl_adr>>4)&0x0F;
+		tocentry.cdte_datamode=current_drive->TocBuffer[i].format;
+		if (tocentry.cdte_format==CDROM_MSF) /* MSF-bin required */
+		{
+			tocentry.cdte_addr.msf.minute=(current_drive->TocBuffer[i].address>>16)&0x00FF;
+			tocentry.cdte_addr.msf.second=(current_drive->TocBuffer[i].address>>8)&0x00FF;
+			tocentry.cdte_addr.msf.frame=current_drive->TocBuffer[i].address&0x00FF;
+		}
+		else if (tocentry.cdte_format==CDROM_LBA) /* blk required */
+			tocentry.cdte_addr.lba=msf2blk(current_drive->TocBuffer[i].address);
+		else RETURN_UP(-EINVAL);
+		memcpy((void *) arg, &tocentry, sizeof(struct cdrom_tocentry));
+		RETURN_UP(0);
+		
+	case CDROMSTOP:      /* Spin down the drive */
+		msg(DBG_IOC,"ioctl: CDROMSTOP entered.\n");
+#ifdef SAFE_MIXED
+		if (current_drive->has_data>1) RETURN_UP(-EBUSY);
+#endif /* SAFE_MIXED */ 
+		i=cc_Pause_Resume(1);
+		current_drive->audio_state=0;
+#if 0
+		cc_DriveReset();
+#endif
+		RETURN_UP(i);
+		
+	case CDROMSTART:  /* Spin up the drive */
+		msg(DBG_IOC,"ioctl: CDROMSTART entered.\n");
+		cc_SpinUp();
+		current_drive->audio_state=0;
+		RETURN_UP(0);
+		
+	case CDROMVOLCTRL:   /* Volume control */
+		msg(DBG_IOC,"ioctl: CDROMVOLCTRL entered.\n");
+		memcpy(&volctrl,(char *) arg,sizeof(volctrl));
+		current_drive->vol_chan0=0;
+		current_drive->vol_ctrl0=volctrl.channel0;
+		current_drive->vol_chan1=1;
+		current_drive->vol_ctrl1=volctrl.channel1;
+		i=cc_SetVolume();
+		RETURN_UP(0);
+		
+	case CDROMVOLREAD:   /* read Volume settings from drive */
+		msg(DBG_IOC,"ioctl: CDROMVOLREAD entered.\n");
+		st=cc_GetVolume();
+		if (st<0) RETURN_UP(st);
+		volctrl.channel0=current_drive->vol_ctrl0;
+		volctrl.channel1=current_drive->vol_ctrl1;
+		volctrl.channel2=0;
+		volctrl.channel2=0;
+		memcpy((void *)arg,&volctrl,sizeof(volctrl));
+		RETURN_UP(0);
+
+	case CDROMSUBCHNL:   /* Get subchannel info */
+		msg(DBG_IOS,"ioctl: CDROMSUBCHNL entered.\n");
+		/* Bogus, I can do better than this! --AJK
+		if ((st_spinning)||(!subq_valid)) {
+			i=cc_ReadSubQ();
+			if (i<0) RETURN_UP(-EIO);
+		}
+		*/
+		i=cc_ReadSubQ();
+		if (i<0) {
+			j=cc_ReadError(); /* clear out error status from drive */
+			current_drive->audio_state=CDROM_AUDIO_NO_STATUS;
+			/* get and set the disk state here, 
+			probably not the right place, but who cares!
+			It makes it work properly! --AJK */
+			if (current_drive->CD_changed==0xFF) {
+				msg(DBG_000,"Disk changed detect\n");
+				current_drive->diskstate_flags &= ~cd_size_bit;
+			}
+			RETURN_UP(-EIO);
+		}
+		if (current_drive->CD_changed==0xFF) {
+			/* reread the TOC because the disk has changed! --AJK */
+			msg(DBG_000,"Disk changed STILL detected, rereading TOC!\n");
+			i=DiskInfo();
+			if(i==0) {
+				current_drive->CD_changed=0x00; /* cd has changed, procede, */
+				RETURN_UP(-EIO); /* and get TOC, etc on next try! --AJK */
+			} else {
+				RETURN_UP(-EIO); /* we weren't ready yet! --AJK */
+			}
+		}
+		memcpy(&SC, (void *) arg, sizeof(struct cdrom_subchnl));
+		/* 
+			This virtual crap is very bogus! 
+			It doesn't detect when the cd is done playing audio!
+			Lets do this right with proper hardware register reading!
+		*/
+		cc_ReadStatus();
+		i=ResponseStatus();
+		msg(DBG_000,"Drive Status: door_locked =%d.\n", st_door_locked);
+		msg(DBG_000,"Drive Status: door_closed =%d.\n", st_door_closed);
+		msg(DBG_000,"Drive Status: caddy_in =%d.\n", st_caddy_in);
+		msg(DBG_000,"Drive Status: disk_ok =%d.\n", st_diskok);
+		msg(DBG_000,"Drive Status: spinning =%d.\n", st_spinning);
+		msg(DBG_000,"Drive Status: busy =%d.\n", st_busy);
+		/* st_busy indicates if it's _ACTUALLY_ playing audio */
+		switch (current_drive->audio_state)
+		{
+		case audio_playing:
+			if(st_busy==0) {
+				/* CD has stopped playing audio --AJK */
+				current_drive->audio_state=audio_completed;
+				SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
+			} else {
+				SC.cdsc_audiostatus=CDROM_AUDIO_PLAY;
+			}
+			break;
+		case audio_pausing:
+			SC.cdsc_audiostatus=CDROM_AUDIO_PAUSED;
+			break;
+		case audio_completed:
+			SC.cdsc_audiostatus=CDROM_AUDIO_COMPLETED;
+			break;
+		default:
+			SC.cdsc_audiostatus=CDROM_AUDIO_NO_STATUS;
+			break;
+		}
+		SC.cdsc_adr=current_drive->SubQ_ctl_adr;
+		SC.cdsc_ctrl=current_drive->SubQ_ctl_adr>>4;
+		SC.cdsc_trk=bcd2bin(current_drive->SubQ_trk);
+		SC.cdsc_ind=bcd2bin(current_drive->SubQ_pnt_idx);
+		if (SC.cdsc_format==CDROM_LBA)
+		{
+			SC.cdsc_absaddr.lba=msf2blk(current_drive->SubQ_run_tot);
+			SC.cdsc_reladdr.lba=msf2blk(current_drive->SubQ_run_trk);
+		}
+		else /* not only if (SC.cdsc_format==CDROM_MSF) */
+		{
+			SC.cdsc_absaddr.msf.minute=(current_drive->SubQ_run_tot>>16)&0x00FF;
+			SC.cdsc_absaddr.msf.second=(current_drive->SubQ_run_tot>>8)&0x00FF;
+			SC.cdsc_absaddr.msf.frame=current_drive->SubQ_run_tot&0x00FF;
+			SC.cdsc_reladdr.msf.minute=(current_drive->SubQ_run_trk>>16)&0x00FF;
+			SC.cdsc_reladdr.msf.second=(current_drive->SubQ_run_trk>>8)&0x00FF;
+			SC.cdsc_reladdr.msf.frame=current_drive->SubQ_run_trk&0x00FF;
+		}
+		memcpy((void *) arg, &SC, sizeof(struct cdrom_subchnl));
+		msg(DBG_IOS,"CDROMSUBCHNL: %1X %02X %08X %08X %02X %02X %06X %06X\n",
+		    SC.cdsc_format,SC.cdsc_audiostatus,
+		    SC.cdsc_adr,SC.cdsc_ctrl,
+		    SC.cdsc_trk,SC.cdsc_ind,
+		    SC.cdsc_absaddr,SC.cdsc_reladdr);
+		RETURN_UP(0);
+		
+	default:
+		msg(DBG_IOC,"ioctl: unknown function request %04X\n", cmd);
+		RETURN_UP(-EINVAL);
+	} /* end switch(cmd) */
+}
+/*==========================================================================*/
+/*
+ *  Take care of the different block sizes between cdrom and Linux.
+ */
+static void sbp_transfer(struct request *req)
+{
+	long offs;
+	
+	while ( (req->nr_sectors > 0) &&
+	       (req->sector/4 >= current_drive->sbp_first_frame) &&
+	       (req->sector/4 <= current_drive->sbp_last_frame) )
+	{
+		offs = (req->sector - current_drive->sbp_first_frame * 4) * 512;
+		memcpy(req->buffer, current_drive->sbp_buf + offs, 512);
+		req->nr_sectors--;
+		req->sector++;
+		req->buffer += 512;
+	}
+}
+/*==========================================================================*/
+/*
+ *  special end_request for sbpcd to solve CURRENT==NULL bug. (GTL)
+ *  GTL = Gonzalo Tornaria <tornaria@cmat.edu.uy>
+ *
+ *  This is a kludge so we don't need to modify end_request.
+ *  We put the req we take out after INIT_REQUEST in the requests list,
+ *  so that end_request will discard it. 
+ *
+ *  The bug could be present in other block devices, perhaps we
+ *  should modify INIT_REQUEST and end_request instead, and
+ *  change every block device.. 
+ *
+ *  Could be a race here?? Could e.g. a timer interrupt schedule() us?
+ *  If so, we should copy end_request here, and do it right.. (or
+ *  modify end_request and the block devices).
+ *
+ *  In any case, the race here would be much small than it was, and
+ *  I couldn't reproduce..
+ *
+ *  The race could be: suppose CURRENT==NULL. We put our req in the list,
+ *  and we are scheduled. Other process takes over, and gets into
+ *  do_sbpcd_request. It sees CURRENT!=NULL (it is == to our req), so
+ *  proceeds. It ends, so CURRENT is now NULL.. Now we awake somewhere in
+ *  end_request, but now CURRENT==NULL... oops!
+ *
+ */
+#undef DEBUG_GTL
+
+/*==========================================================================*/
+/*
+ *  I/O request routine, called from Linux kernel.
+ */
+static void do_sbpcd_request(request_queue_t * q)
+{
+	u_int block;
+	u_int nsect;
+	int status_tries, data_tries;
+	struct request *req;
+	struct sbpcd_drive *p;
+#ifdef DEBUG_GTL
+	static int xx_nr=0;
+	int xnr;
+#endif
+
+ request_loop:
+#ifdef DEBUG_GTL
+	xnr=++xx_nr;
+
+	req = elv_next_request(q);
+
+	if (!req)
+	{
+		printk( "do_sbpcd_request[%di](NULL), Pid:%d, Time:%li\n",
+			xnr, current->pid, jiffies);
+		printk( "do_sbpcd_request[%do](NULL) end 0 (null), Time:%li\n",
+			xnr, jiffies);
+		return;
+	}
+
+	printk(" do_sbpcd_request[%di](%p:%ld+%ld), Pid:%d, Time:%li\n",
+		xnr, req, req->sector, req->nr_sectors, current->pid, jiffies);
+#endif
+
+	req = elv_next_request(q);	/* take out our request so no other */
+	if (!req)
+		return;
+
+	if (req -> sector == -1)
+		end_request(req, 0);
+	spin_unlock_irq(q->queue_lock);
+
+	down(&ioctl_read_sem);
+	if (rq_data_dir(elv_next_request(q)) != READ)
+	{
+		msg(DBG_INF, "bad cmd %d\n", req->cmd[0]);
+		goto err_done;
+	}
+	p = req->rq_disk->private_data;
+#if OLD_BUSY
+	while (busy_audio) sbp_sleep(HZ); /* wait a bit */
+	busy_data=1;
+#endif /* OLD_BUSY */
+	
+	if (p->audio_state==audio_playing) goto err_done;
+	if (p != current_drive)
+		switch_drive(p);
+
+	block = req->sector; /* always numbered as 512-byte-pieces */
+	nsect = req->nr_sectors; /* always counted as 512-byte-pieces */
+	
+	msg(DBG_BSZ,"read sector %d (%d sectors)\n", block, nsect);
+#if 0
+	msg(DBG_MUL,"read LBA %d\n", block/4);
+#endif
+	
+	sbp_transfer(req);
+	/* if we satisfied the request from the buffer, we're done. */
+	if (req->nr_sectors == 0)
+	{
+#ifdef DEBUG_GTL
+		printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 2, Time:%li\n",
+			xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+		up(&ioctl_read_sem);
+		spin_lock_irq(q->queue_lock);
+		end_request(req, 1);
+		goto request_loop;
+	}
+
+#ifdef FUTURE
+	i=prepare(0,0); /* at moment not really a hassle check, but ... */
+	if (i!=0)
+		msg(DBG_INF,"\"prepare\" tells error %d -- ignored\n", i);
+#endif /* FUTURE */ 
+	
+	if (!st_spinning) cc_SpinUp();
+	
+	for (data_tries=n_retries; data_tries > 0; data_tries--)
+	{
+		for (status_tries=3; status_tries > 0; status_tries--)
+		{
+			flags_cmd_out |= f_respo3;
+			cc_ReadStatus();
+			if (sbp_status() != 0) break;
+			if (st_check) cc_ReadError();
+			sbp_sleep(1);    /* wait a bit, try again */
+		}
+		if (status_tries == 0)
+		{
+			msg(DBG_INF,"sbp_status: failed after 3 tries in line %d\n", __LINE__);
+			break;
+		}
+		
+		sbp_read_cmd(req);
+		sbp_sleep(0);
+		if (sbp_data(req) != 0)
+		{
+#ifdef SAFE_MIXED
+			current_drive->has_data=2; /* is really a data disk */
+#endif /* SAFE_MIXED */ 
+#ifdef DEBUG_GTL
+			printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 3, Time:%li\n",
+				xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+			up(&ioctl_read_sem);
+			spin_lock_irq(q->queue_lock);
+			end_request(req, 1);
+			goto request_loop;
+		}
+	}
+	
+ err_done:
+#if OLD_BUSY
+	busy_data=0;
+#endif /* OLD_BUSY */
+#ifdef DEBUG_GTL
+	printk(" do_sbpcd_request[%do](%p:%ld+%ld) end 4 (error), Time:%li\n",
+		xnr, req, req->sector, req->nr_sectors, jiffies);
+#endif
+	up(&ioctl_read_sem);
+	sbp_sleep(0);    /* wait a bit, try again */
+	spin_lock_irq(q->queue_lock);
+	end_request(req, 0);
+	goto request_loop;
+}
+/*==========================================================================*/
+/*
+ *  build and send the READ command.
+ */
+static void sbp_read_cmd(struct request *req)
+{
+#undef OLD
+
+	int i;
+	int block;
+	
+	current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1;      /* purge buffer */
+	current_drive->sbp_current = 0;
+	block=req->sector/4;
+	if (block+current_drive->sbp_bufsiz <= current_drive->CDsize_frm)
+		current_drive->sbp_read_frames = current_drive->sbp_bufsiz;
+	else
+	{
+		current_drive->sbp_read_frames=current_drive->CDsize_frm-block;
+		/* avoid reading past end of data */
+		if (current_drive->sbp_read_frames < 1)
+		{
+			msg(DBG_INF,"requested frame %d, CD size %d ???\n",
+			    block, current_drive->CDsize_frm);
+			current_drive->sbp_read_frames=1;
+		}
+	}
+	
+	flags_cmd_out = f_putcmd | f_respo2 | f_ResponseStatus | f_obey_p_check;
+	clr_cmdbuf();
+	if (famV_drive)
+	  {
+	    drvcmd[0]=CMDV_READ;
+	    lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
+	    bin2bcdx(&drvcmd[1]);
+	    bin2bcdx(&drvcmd[2]);
+	    bin2bcdx(&drvcmd[3]);
+	    drvcmd[4]=current_drive->sbp_read_frames>>8;
+	    drvcmd[5]=current_drive->sbp_read_frames&0xff;
+	    drvcmd[6]=0x02; /* flag "msf-bcd" */
+	}
+	else if (fam0L_drive)
+	{
+		flags_cmd_out |= f_lopsta | f_getsta | f_bit1;
+		if (current_drive->xa_byte==0x20)
+		{
+			cmd_type=READ_M2;
+			drvcmd[0]=CMD0_READ_XA; /* "read XA frames", old drives */
+			drvcmd[1]=(block>>16)&0x0ff;
+			drvcmd[2]=(block>>8)&0x0ff;
+			drvcmd[3]=block&0x0ff;
+			drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+			drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+		}
+		else
+		{
+			drvcmd[0]=CMD0_READ; /* "read frames", old drives */
+			if (current_drive->drv_type>=drv_201)
+			{
+				lba2msf(block,&drvcmd[1]); /* msf-bcd format required */
+				bin2bcdx(&drvcmd[1]);
+				bin2bcdx(&drvcmd[2]);
+				bin2bcdx(&drvcmd[3]);
+			}
+			else
+			{
+				drvcmd[1]=(block>>16)&0x0ff;
+				drvcmd[2]=(block>>8)&0x0ff;
+				drvcmd[3]=block&0x0ff;
+			}
+			drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+			drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+			drvcmd[6]=(current_drive->drv_type<drv_201)?0:2; /* flag "lba or msf-bcd format" */
+		}
+	}
+	else if (fam1_drive)
+	{
+		drvcmd[0]=CMD1_READ;
+		lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+		drvcmd[5]=(current_drive->sbp_read_frames>>8)&0x0ff;
+		drvcmd[6]=current_drive->sbp_read_frames&0x0ff;
+	}
+	else if (fam2_drive)
+	{
+		drvcmd[0]=CMD2_READ;
+		lba2msf(block,&drvcmd[1]); /* msf-bin format required */
+		drvcmd[4]=(current_drive->sbp_read_frames>>8)&0x0ff;
+		drvcmd[5]=current_drive->sbp_read_frames&0x0ff;
+		drvcmd[6]=0x02;
+	}
+	else if (famT_drive)
+	{
+		drvcmd[0]=CMDT_READ;
+		drvcmd[2]=(block>>24)&0x0ff;
+		drvcmd[3]=(block>>16)&0x0ff;
+		drvcmd[4]=(block>>8)&0x0ff;
+		drvcmd[5]=block&0x0ff;
+		drvcmd[7]=(current_drive->sbp_read_frames>>8)&0x0ff;
+		drvcmd[8]=current_drive->sbp_read_frames&0x0ff;
+	}
+	flags_cmd_out=f_putcmd;
+	response_count=0;
+	i=cmd_out();
+	if (i<0) msg(DBG_INF,"error giving READ command: %0d\n", i);
+	return;
+}
+/*==========================================================================*/
+/*
+ *  Check the completion of the read-data command.  On success, read
+ *  the current_drive->sbp_bufsiz * 2048 bytes of data from the disk into buffer.
+ */
+static int sbp_data(struct request *req)
+{
+	int i=0, j=0, l, frame;
+	u_int try=0;
+	u_long timeout;
+	u_char *p;
+	u_int data_tries = 0;
+	u_int data_waits = 0;
+	u_int data_retrying = 0;
+	int error_flag;
+	int xa_count;
+	int max_latency;
+	int success;
+	int wait;
+	int duration;
+	
+	error_flag=0;
+	success=0;
+#if LONG_TIMING
+	max_latency=9*HZ;
+#else
+	if (current_drive->f_multisession) max_latency=15*HZ;
+	else max_latency=5*HZ;
+#endif
+	duration=jiffies;
+	for (frame=0;frame<current_drive->sbp_read_frames&&!error_flag; frame++)
+	{
+		SBPCD_CLI;
+		
+		del_timer(&data_timer);
+		data_timer.expires=jiffies+max_latency;
+		timed_out_data=0;
+		add_timer(&data_timer);
+		while (!timed_out_data) 
+		{
+			if (current_drive->f_multisession) try=maxtim_data*4;
+			else try=maxtim_data;
+			msg(DBG_000,"sbp_data: CDi_status loop: try=%d.\n",try);
+			for ( ; try!=0;try--)
+			{
+				j=inb(CDi_status);
+				if (!(j&s_not_data_ready)) break;
+				if (!(j&s_not_result_ready)) break;
+				if (fam0LV_drive) if (j&s_attention) break;
+			}
+			if (!(j&s_not_data_ready)) goto data_ready;
+			if (try==0)
+			{
+				if (data_retrying == 0) data_waits++;
+				data_retrying = 1;
+				msg(DBG_000,"sbp_data: CDi_status loop: sleeping.\n");
+				sbp_sleep(1);
+				try = 1;
+			}
+		}
+		msg(DBG_INF,"sbp_data: CDi_status loop expired.\n");
+	data_ready:
+		del_timer(&data_timer);
+
+		if (timed_out_data)
+		{
+			msg(DBG_INF,"sbp_data: CDi_status timeout (timed_out_data) (%02X).\n", j);
+			error_flag++;
+		}
+		if (try==0)
+		{
+			msg(DBG_INF,"sbp_data: CDi_status timeout (try=0) (%02X).\n", j);
+			error_flag++;
+		}
+		if (!(j&s_not_result_ready))
+		{
+			msg(DBG_INF, "sbp_data: RESULT_READY where DATA_READY awaited (%02X).\n", j);
+			response_count=20;
+			j=ResponseInfo();
+			j=inb(CDi_status);
+		}
+		if (j&s_not_data_ready)
+		{
+			if ((current_drive->ored_ctl_adr&0x40)==0)
+				msg(DBG_INF, "CD contains no data tracks.\n");
+			else msg(DBG_INF, "sbp_data: DATA_READY timeout (%02X).\n", j);
+			error_flag++;
+		}
+		SBPCD_STI;
+		if (error_flag) break;
+
+		msg(DBG_000, "sbp_data: beginning to read.\n");
+		p = current_drive->sbp_buf + frame *  CD_FRAMESIZE;
+		if (sbpro_type==1) OUT(CDo_sel_i_d,1);
+		if (cmd_type==READ_M2) {
+                        if (do_16bit) insw(CDi_data, xa_head_buf, CD_XA_HEAD>>1);
+                        else insb(CDi_data, xa_head_buf, CD_XA_HEAD);
+		}
+		if (do_16bit) insw(CDi_data, p, CD_FRAMESIZE>>1);
+		else insb(CDi_data, p, CD_FRAMESIZE);
+		if (cmd_type==READ_M2) {
+                        if (do_16bit) insw(CDi_data, xa_tail_buf, CD_XA_TAIL>>1);
+                        else insb(CDi_data, xa_tail_buf, CD_XA_TAIL);
+		}
+		current_drive->sbp_current++;
+		if (sbpro_type==1) OUT(CDo_sel_i_d,0);
+		if (cmd_type==READ_M2)
+		{
+			for (xa_count=0;xa_count<CD_XA_HEAD;xa_count++)
+				sprintf(&msgbuf[xa_count*3], " %02X", xa_head_buf[xa_count]);
+			msgbuf[xa_count*3]=0;
+			msg(DBG_XA1,"xa head:%s\n", msgbuf);
+		}
+		data_retrying = 0;
+		data_tries++;
+		if (data_tries >= 1000)
+		{
+			msg(DBG_INF,"sbp_data() statistics: %d waits in %d frames.\n", data_waits, data_tries);
+			data_waits = data_tries = 0;
+		}
+	}
+	duration=jiffies-duration;
+	msg(DBG_TEA,"time to read %d frames: %d jiffies .\n",frame,duration);
+	if (famT_drive)
+	{
+		wait=8;
+		do
+		{
+			if (teac==2)
+                          {
+                            if ((i=CDi_stat_loop_T()) == -1) break;
+                          }
+                        else
+                          {
+                            sbp_sleep(1);
+                            OUT(CDo_sel_i_d,0); 
+                            i=inb(CDi_status);
+                          } 
+			if (!(i&s_not_data_ready))
+			{
+				OUT(CDo_sel_i_d,1);
+				j=0;
+				do
+				{
+					if (do_16bit) i=inw(CDi_data);
+					else i=inb(CDi_data);
+					j++;
+					i=inb(CDi_status);
+				}
+				while (!(i&s_not_data_ready));
+				msg(DBG_TEA, "==========too much data (%d bytes/words)==============.\n", j);
+			}
+			if (!(i&s_not_result_ready))
+			{
+				OUT(CDo_sel_i_d,0);
+				l=0;
+				do
+				{
+					infobuf[l++]=inb(CDi_info);
+					i=inb(CDi_status);
+				}
+				while (!(i&s_not_result_ready));
+				if (infobuf[0]==0x00) success=1;
+#if 1
+				for (j=0;j<l;j++) sprintf(&msgbuf[j*3], " %02X", infobuf[j]);
+				msgbuf[j*3]=0;
+				msg(DBG_TEA,"sbp_data info response:%s\n", msgbuf);
+#endif
+				if (infobuf[0]==0x02)
+				{
+					error_flag++;
+					do
+					{
+						++recursion;
+						if (recursion>1) msg(DBG_TEA,"cmd_out_T READ_ERR recursion (sbp_data): %d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n",recursion);
+						else msg(DBG_TEA,"sbp_data: CMDT_READ_ERR necessary.\n");
+						clr_cmdbuf();
+						drvcmd[0]=CMDT_READ_ERR;
+						j=cmd_out_T(); /* !!! recursive here !!! */
+						--recursion;
+						sbp_sleep(1);
+					}
+					while (j<0);
+					current_drive->error_state=infobuf[2];
+					current_drive->b3=infobuf[3];
+					current_drive->b4=infobuf[4];
+				}
+				break;
+			}
+			else
+			{
+#if 0
+				msg(DBG_TEA, "============= waiting for result=================.\n");
+				sbp_sleep(1);
+#endif
+			}
+		}
+		while (wait--);
+	}
+
+	if (error_flag) /* must have been spurious D_RDY or (ATTN&&!D_RDY) */
+	{
+		msg(DBG_TEA, "================error flag: %d=================.\n", error_flag);
+		msg(DBG_INF,"sbp_data: read aborted by drive.\n");
+#if 1
+		i=cc_DriveReset(); /* ugly fix to prevent a hang */
+#else
+		i=cc_ReadError();
+#endif
+		return (0);
+	}
+	
+	if (fam0LV_drive)
+	{
+		SBPCD_CLI;
+		i=maxtim_data;
+		for (timeout=jiffies+HZ; time_before(jiffies, timeout); timeout--)
+		{
+			for ( ;i!=0;i--)
+			{
+				j=inb(CDi_status);
+				if (!(j&s_not_data_ready)) break;
+				if (!(j&s_not_result_ready)) break;
+				if (j&s_attention) break;
+			}
+			if (i != 0 || time_after_eq(jiffies, timeout)) break;
+			sbp_sleep(0);
+			i = 1;
+		}
+		if (i==0) msg(DBG_INF,"status timeout after READ.\n");
+		if (!(j&s_attention))
+		{
+			msg(DBG_INF,"sbp_data: timeout waiting DRV_ATTN - retrying.\n");
+			i=cc_DriveReset();  /* ugly fix to prevent a hang */
+			SBPCD_STI;
+			return (0);
+		}
+		SBPCD_STI;
+	}
+	
+#if 0
+	if (!success)
+#endif
+		do
+		{
+			if (fam0LV_drive) cc_ReadStatus();
+#if 1
+			if (famT_drive) msg(DBG_TEA, "================before ResponseStatus=================.\n", i);
+#endif
+			i=ResponseStatus();  /* builds status_bits, returns orig. status (old) or faked p_success (new) */
+#if 1
+			if (famT_drive)	msg(DBG_TEA, "================ResponseStatus: %d=================.\n", i);
+#endif
+			if (i<0)
+			{
+				msg(DBG_INF,"bad cc_ReadStatus after read: %02X\n", current_drive->status_bits);
+				return (0);
+			}
+		}
+		while ((fam0LV_drive)&&(!st_check)&&(!(i&p_success)));
+	if (st_check)
+	{
+		i=cc_ReadError();
+		msg(DBG_INF,"cc_ReadError was necessary after read: %d\n",i);
+		return (0);
+	}
+	if (fatal_err)
+	{
+		fatal_err=0;
+		current_drive->sbp_first_frame=current_drive->sbp_last_frame=-1;      /* purge buffer */
+		current_drive->sbp_current = 0;
+		msg(DBG_INF,"sbp_data: fatal_err - retrying.\n");
+		return (0);
+	}
+	
+	current_drive->sbp_first_frame = req -> sector / 4;
+	current_drive->sbp_last_frame = current_drive->sbp_first_frame + current_drive->sbp_read_frames - 1;
+	sbp_transfer(req);
+	return (1);
+}
+/*==========================================================================*/
+
+static int sbpcd_block_open(struct inode *inode, struct file *file)
+{
+	struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+	return cdrom_open(p->sbpcd_infop, inode, file);
+}
+
+static int sbpcd_block_release(struct inode *inode, struct file *file)
+{
+	struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+	return cdrom_release(p->sbpcd_infop, file);
+}
+
+static int sbpcd_block_ioctl(struct inode *inode, struct file *file,
+				unsigned cmd, unsigned long arg)
+{
+	struct sbpcd_drive *p = inode->i_bdev->bd_disk->private_data;
+	return cdrom_ioctl(file, p->sbpcd_infop, inode, cmd, arg);
+}
+
+static int sbpcd_block_media_changed(struct gendisk *disk)
+{
+	struct sbpcd_drive *p = disk->private_data;
+	return cdrom_media_changed(p->sbpcd_infop);
+}
+
+static struct block_device_operations sbpcd_bdops =
+{
+	.owner		= THIS_MODULE,
+	.open		= sbpcd_block_open,
+	.release	= sbpcd_block_release,
+	.ioctl		= sbpcd_block_ioctl,
+	.media_changed	= sbpcd_block_media_changed,
+};
+/*==========================================================================*/
+/*
+ *  Open the device special file.  Check that a disk is in. Read TOC.
+ */
+static int sbpcd_open(struct cdrom_device_info *cdi, int purpose)
+{
+	struct sbpcd_drive *p = cdi->handle;
+
+	down(&ioctl_read_sem);
+	switch_drive(p);
+
+	/*
+	 * try to keep an "open" counter here and lock the door if 0->1.
+	 */
+	msg(DBG_LCK,"open_count: %d -> %d\n",
+	    current_drive->open_count,current_drive->open_count+1);
+	if (++current_drive->open_count<=1)
+	{
+		int i;
+		i=LockDoor();
+		current_drive->open_count=1;
+		if (famT_drive)	msg(DBG_TEA,"sbpcd_open: before i=DiskInfo();.\n");
+		i=DiskInfo();
+		if (famT_drive)	msg(DBG_TEA,"sbpcd_open: after i=DiskInfo();.\n");
+		if ((current_drive->ored_ctl_adr&0x40)==0)
+		{		
+			msg(DBG_INF,"CD contains no data tracks.\n");
+#ifdef SAFE_MIXED
+			current_drive->has_data=0;
+#endif /* SAFE_MIXED */
+		}
+#ifdef SAFE_MIXED
+		else if (current_drive->has_data<1) current_drive->has_data=1;
+#endif /* SAFE_MIXED */ 
+	}
+	if (!st_spinning) cc_SpinUp();
+	RETURN_UP(0);
+}
+/*==========================================================================*/
+/*
+ *  On close, we flush all sbp blocks from the buffer cache.
+ */
+static void sbpcd_release(struct cdrom_device_info * cdi)
+{
+	struct sbpcd_drive *p = cdi->handle;
+
+	if (p->drv_id==-1) {
+		msg(DBG_INF, "release: bad device: %s\n", cdi->name);
+		return;
+	}
+	down(&ioctl_read_sem);
+	switch_drive(p);
+	/*
+	 * try to keep an "open" counter here and unlock the door if 1->0.
+	 */
+	msg(DBG_LCK,"open_count: %d -> %d\n",
+	    p->open_count,p->open_count-1);
+	if (p->open_count>-2) /* CDROMEJECT may have been done */
+	{
+		if (--p->open_count<=0) 
+		{
+			p->sbp_first_frame=p->sbp_last_frame=-1;
+			if (p->audio_state!=audio_playing)
+				if (p->f_eject) cc_SpinDown();
+			p->diskstate_flags &= ~cd_size_bit;
+			p->open_count=0; 
+#ifdef SAFE_MIXED
+			p->has_data=0;
+#endif /* SAFE_MIXED */ 
+		}
+	}
+	up(&ioctl_read_sem);
+	return ;
+}
+/*==========================================================================*/
+/*
+ *
+ */
+static int sbpcd_media_changed( struct cdrom_device_info *cdi, int disc_nr);
+static struct cdrom_device_ops sbpcd_dops = {
+	.open			= sbpcd_open,
+	.release		= sbpcd_release,
+	.drive_status		= sbpcd_drive_status,
+	.media_changed		= sbpcd_media_changed,
+	.tray_move		= sbpcd_tray_move,
+	.lock_door		= sbpcd_lock_door,
+	.select_speed		= sbpcd_select_speed,
+	.get_last_session	= sbpcd_get_last_session,
+	.get_mcn		= sbpcd_get_mcn,
+	.reset			= sbpcd_reset,
+	.audio_ioctl		= sbpcd_audio_ioctl,
+	.dev_ioctl		= sbpcd_dev_ioctl,
+	.capability		= CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
+				CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
+				CDC_MCN | CDC_PLAY_AUDIO | CDC_IOCTLS,
+	.n_minors		= 1,
+};
+
+/*==========================================================================*/
+/*
+ * accept "kernel command line" parameters 
+ * (suggested by Peter MacDonald with SLS 1.03)
+ *
+ * This is only implemented for the first controller. Should be enough to
+ * allow installing with a "strange" distribution kernel.
+ *
+ * use: tell LILO:
+ *                 sbpcd=0x230,SoundBlaster
+ *             or
+ *                 sbpcd=0x300,LaserMate
+ *             or
+ *                 sbpcd=0x338,SoundScape
+ *             or
+ *                 sbpcd=0x2C0,Teac16bit
+ *
+ * (upper/lower case sensitive here - but all-lowercase is ok!!!).
+ *
+ * the address value has to be the CDROM PORT ADDRESS -
+ * not the soundcard base address.
+ * For the SPEA/SoundScape setup, DO NOT specify the "configuration port"
+ * address, but the address which is really used for the CDROM (usually 8
+ * bytes above).
+ *
+ */
+
+int sbpcd_setup(char *s)
+{
+#ifndef MODULE
+	int p[4];
+	(void)get_options(s, ARRAY_SIZE(p), p);
+	setup_done++;
+	msg(DBG_INI,"sbpcd_setup called with %04X,%s\n",p[1], s);
+	sbpro_type=0; /* default: "LaserMate" */
+	if (p[0]>1) sbpro_type=p[2];
+	else if (!strcmp(s,str_sb)) sbpro_type=1;
+	else if (!strcmp(s,str_sb_l)) sbpro_type=1;
+	else if (!strcmp(s,str_sp)) sbpro_type=2;
+	else if (!strcmp(s,str_sp_l)) sbpro_type=2;
+	else if (!strcmp(s,str_ss)) sbpro_type=2;
+	else if (!strcmp(s,str_ss_l)) sbpro_type=2;
+	else if (!strcmp(s,str_t16)) sbpro_type=3;
+	else if (!strcmp(s,str_t16_l)) sbpro_type=3;
+	if (p[0]>0) sbpcd_ioaddr=p[1];
+	if (p[0]>2) max_drives=p[3];
+#else
+	sbpcd_ioaddr = sbpcd[0];
+	sbpro_type = sbpcd[1];
+#endif
+	
+	CDo_command=sbpcd_ioaddr;
+	CDi_info=sbpcd_ioaddr;
+	CDi_status=sbpcd_ioaddr+1;
+	CDo_sel_i_d=sbpcd_ioaddr+1;
+	CDo_reset=sbpcd_ioaddr+2;
+	CDo_enable=sbpcd_ioaddr+3; 
+	f_16bit=0;
+	if ((sbpro_type==1)||(sbpro_type==3))
+	{
+		CDi_data=sbpcd_ioaddr;
+		if (sbpro_type==3)
+                {
+                        f_16bit=1;
+                        sbpro_type=1;
+                }
+	}
+	else CDi_data=sbpcd_ioaddr+2;
+
+	return 1;
+}
+
+__setup("sbpcd=", sbpcd_setup);
+
+
+/*==========================================================================*/
+/*
+ * Sequoia S-1000 CD-ROM Interface Configuration
+ * as used within SPEA Media FX, Ensonic SoundScape and some Reveal cards
+ * The soundcard has to get jumpered for the interface type "Panasonic"
+ * (not Sony or Mitsumi) and to get soft-configured for
+ *     -> configuration port address
+ *     -> CDROM port offset (num_ports): has to be 8 here. Possibly this
+ *        offset value determines the interface type (none, Panasonic,
+ *        Mitsumi, Sony).
+ *        The interface uses a configuration port (0x320, 0x330, 0x340, 0x350)
+ *        some bytes below the real CDROM address.
+ *         
+ *        For the Panasonic style (LaserMate) interface and the configuration
+ *        port 0x330, we have to use an offset of 8; so, the real CDROM port
+ *        address is 0x338.
+ */
+static int __init config_spea(void)
+{
+	/*
+         * base address offset between configuration port and CDROM port,
+	 * this probably defines the interface type
+         *   2 (type=??): 0x00
+         *   8 (type=LaserMate):0x10
+         *  16 (type=??):0x20
+         *  32 (type=??):0x30
+         */
+	int n_ports=0x10;
+
+	int irq_number=0; /* off:0x00, 2/9:0x01, 7:0x03, 12:0x05, 15:0x07 */
+	int dma_channel=0; /* off: 0x00, 0:0x08, 1:0x18, 3:0x38, 5:0x58, 6:0x68 */
+	int dack_polarity=0; /* L:0x00, H:0x80 */
+	int drq_polarity=0x40; /* L:0x00, H:0x40 */
+	int i;
+
+#define SPEA_REG_1 sbpcd_ioaddr-0x08+4
+#define SPEA_REG_2 sbpcd_ioaddr-0x08+5
+	
+	OUT(SPEA_REG_1,0xFF);
+	i=inb(SPEA_REG_1);
+	if (i!=0x0F)
+	{
+		msg(DBG_SEQ,"no SPEA interface at %04X present.\n", sbpcd_ioaddr);
+		return (-1); /* no interface found */
+	}
+	OUT(SPEA_REG_1,0x04);
+	OUT(SPEA_REG_2,0xC0);
+	
+	OUT(SPEA_REG_1,0x05);
+	OUT(SPEA_REG_2,0x10|drq_polarity|dack_polarity);
+	
+#if 1
+#define SPEA_PATTERN 0x80
+#else
+#define SPEA_PATTERN 0x00
+#endif
+	OUT(SPEA_REG_1,0x06);
+	OUT(SPEA_REG_2,dma_channel|irq_number|SPEA_PATTERN);
+	OUT(SPEA_REG_2,dma_channel|irq_number|SPEA_PATTERN);
+	
+	OUT(SPEA_REG_1,0x09);
+	i=(inb(SPEA_REG_2)&0xCF)|n_ports;
+	OUT(SPEA_REG_2,i);
+	
+	sbpro_type = 0; /* acts like a LaserMate interface now */
+	msg(DBG_SEQ,"found SoundScape interface at %04X.\n", sbpcd_ioaddr);
+	return (0);
+}
+
+/*==========================================================================*/
+/*
+ *  Test for presence of drive and initialize it.
+ *  Called once at boot or load time.
+ */
+
+/* FIXME: cleanups after failed allocations are too ugly for words */
+#ifdef MODULE
+int __init __sbpcd_init(void)
+#else
+int __init sbpcd_init(void)
+#endif
+{
+	int i=0, j=0;
+	int addr[2]={1, CDROM_PORT};
+	int port_index;
+
+	sti();
+	
+	msg(DBG_INF,"sbpcd.c %s\n", VERSION);
+#ifndef MODULE
+#if DISTRIBUTION
+	if (!setup_done)
+	{
+		msg(DBG_INF,"Looking for Matsushita/Panasonic, CreativeLabs, Longshine, TEAC CD-ROM drives\n");
+		msg(DBG_INF,"= = = = = = = = = = W A R N I N G = = = = = = = = = =\n");
+		msg(DBG_INF,"Auto-Probing can cause a hang (f.e. touching an NE2000 card).\n");
+		msg(DBG_INF,"If that happens, you have to reboot and use the\n");
+		msg(DBG_INF,"LILO (kernel) command line feature like:\n");
+		msg(DBG_INF,"   LILO boot: ... sbpcd=0x230,SoundBlaster\n");
+		msg(DBG_INF,"or like:\n");
+		msg(DBG_INF,"   LILO boot: ... sbpcd=0x300,LaserMate\n");
+		msg(DBG_INF,"or like:\n");
+		msg(DBG_INF,"   LILO boot: ... sbpcd=0x338,SoundScape\n");
+		msg(DBG_INF,"with your REAL address.\n");
+		msg(DBG_INF,"= = = = = = = = = = END of WARNING = = = = = == = = =\n");
+	}
+#endif /* DISTRIBUTION */
+	sbpcd[0]=sbpcd_ioaddr; /* possibly changed by kernel command line */
+	sbpcd[1]=sbpro_type; /* possibly changed by kernel command line */
+#endif /* MODULE */
+	
+	for (port_index=0;port_index<NUM_PROBE;port_index+=2)
+	{
+		addr[1]=sbpcd[port_index];
+		if (addr[1]==0) break;
+		if (check_region(addr[1],4))
+		{
+			msg(DBG_INF,"check_region: %03X is not free.\n",addr[1]);
+			continue;
+		}
+		if (sbpcd[port_index+1]==2) type=str_sp;
+		else if (sbpcd[port_index+1]==1) type=str_sb;
+		else if (sbpcd[port_index+1]==3) type=str_t16;
+		else type=str_lm;
+		sbpcd_setup((char *)type);
+#if DISTRIBUTION
+		msg(DBG_INF,"Scanning 0x%X (%s)...\n", CDo_command, type);
+#endif /* DISTRIBUTION */
+		if (sbpcd[port_index+1]==2)
+		{
+			i=config_spea();
+			if (i<0) continue;
+		}
+#ifdef PATH_CHECK
+		if (check_card(addr[1])) continue;
+#endif /* PATH_CHECK */ 
+		i=check_drives();
+		msg(DBG_INI,"check_drives done.\n");
+		if (i>=0) break; /* drive found */
+	} /* end of cycling through the set of possible I/O port addresses */
+	
+	if (ndrives==0)
+	{
+		msg(DBG_INF, "No drive found.\n");
+#ifdef MODULE
+		return -EIO;
+#else
+		goto init_done;
+#endif /* MODULE */
+	}
+	
+	if (port_index>0)
+          {
+            msg(DBG_INF, "You should read Documentation/cdrom/sbpcd\n");
+            msg(DBG_INF, "and then configure sbpcd.h for your hardware.\n");
+          }
+	check_datarate();
+	msg(DBG_INI,"check_datarate done.\n");
+	
+	for (j=0;j<NR_SBPCD;j++)
+	{
+		struct sbpcd_drive *p = D_S + j;
+		if (p->drv_id==-1)
+			continue;
+		switch_drive(p);
+#if 1
+		if (!famL_drive) cc_DriveReset();
+#endif
+		if (!st_spinning) cc_SpinUp();
+		p->sbp_first_frame = -1;  /* First frame in buffer */
+		p->sbp_last_frame = -1;   /* Last frame in buffer  */
+		p->sbp_read_frames = 0;   /* Number of frames being read to buffer */
+		p->sbp_current = 0;       /* Frame being currently read */
+		p->CD_changed=1;
+		p->frame_size=CD_FRAMESIZE;
+		p->f_eject=0;
+#if EJECT
+		if (!fam0_drive) p->f_eject=1;
+#endif /* EJECT */ 
+		cc_ReadStatus();
+		i=ResponseStatus();  /* returns orig. status or p_busy_new */
+		if (famT_drive) i=ResponseStatus();  /* returns orig. status or p_busy_new */
+		if (i<0)
+		{
+			if (i!=-402)
+				msg(DBG_INF,"init: ResponseStatus returns %d.\n",i);
+		}
+		else
+		{
+			if (st_check)
+			{
+				i=cc_ReadError();
+				msg(DBG_INI,"init: cc_ReadError returns %d\n",i);
+			}
+		}
+		msg(DBG_INI,"init: first GetStatus: %d\n",i);
+		msg(DBG_LCS,"init: first GetStatus: error_byte=%d\n",
+		    p->error_byte);
+		if (p->error_byte==aud_12)
+		{
+			timeout=jiffies+2*HZ;
+			do
+			{
+				i=GetStatus();
+				msg(DBG_INI,"init: second GetStatus: %02X\n",i);
+				msg(DBG_LCS,
+				    "init: second GetStatus: error_byte=%d\n",
+				    p->error_byte);
+				if (i<0) break;
+				if (!st_caddy_in) break;
+				}
+			while ((!st_diskok)||time_after(jiffies, timeout));
+		}
+		i=SetSpeed();
+		if (i>=0) p->CD_changed=1;
+	}
+
+	if (!request_region(CDo_command,4,major_name))
+	{
+		printk(KERN_WARNING "sbpcd: Unable to request region 0x%x\n", CDo_command);
+		return -EIO;
+	}
+
+	/*
+	 * Turn on the CD audio channels.
+	 * The addresses are obtained from SOUND_BASE (see sbpcd.h).
+	 */
+#if SOUND_BASE
+	OUT(MIXER_addr,MIXER_CD_Volume); /* select SB Pro mixer register */
+	OUT(MIXER_data,0xCC); /* one nibble per channel, max. value: 0xFF */
+#endif /* SOUND_BASE */
+
+	if (register_blkdev(MAJOR_NR, major_name)) {
+#ifdef MODULE
+		return -EIO;
+#else
+		goto init_done;
+#endif /* MODULE */
+	}
+
+	/*
+	 * init error handling is broken beyond belief in this driver...
+	 */
+	sbpcd_queue = blk_init_queue(do_sbpcd_request, &sbpcd_lock);
+	if (!sbpcd_queue) {
+		release_region(CDo_command,4);
+		unregister_blkdev(MAJOR_NR, major_name);
+		return -ENOMEM;
+	}
+
+	devfs_mk_dir("sbp");
+
+	for (j=0;j<NR_SBPCD;j++)
+	{
+		struct cdrom_device_info * sbpcd_infop;
+		struct gendisk *disk;
+		struct sbpcd_drive *p = D_S + j;
+
+		if (p->drv_id==-1) continue;
+		switch_drive(p);
+#ifdef SAFE_MIXED
+		p->has_data=0;
+#endif /* SAFE_MIXED */ 
+		/*
+		 * allocate memory for the frame buffers
+		 */
+		p->aud_buf=NULL;
+		p->sbp_audsiz=0;
+		p->sbp_bufsiz=buffers;
+		if (p->drv_type&drv_fam1)
+			if (READ_AUDIO>0)
+				p->sbp_audsiz = READ_AUDIO;
+		p->sbp_buf=(u_char *) vmalloc(buffers*CD_FRAMESIZE);
+		if (!p->sbp_buf) {
+			msg(DBG_INF,"data buffer (%d frames) not available.\n",
+				buffers);
+			if ((unregister_blkdev(MAJOR_NR, major_name) == -EINVAL))
+			{
+				printk("Can't unregister %s\n", major_name);
+			}
+			release_region(CDo_command,4);
+			blk_cleanup_queue(sbpcd_queue);
+			return -EIO;
+		}
+#ifdef MODULE
+		msg(DBG_INF,"data buffer size: %d frames.\n",buffers);
+#endif /* MODULE */
+		if (p->sbp_audsiz>0)
+		{
+			p->aud_buf=(u_char *) vmalloc(p->sbp_audsiz*CD_FRAMESIZE_RAW);
+			if (p->aud_buf==NULL) msg(DBG_INF,"audio buffer (%d frames) not available.\n",p->sbp_audsiz);
+			else msg(DBG_INF,"audio buffer size: %d frames.\n",p->sbp_audsiz);
+		}
+                sbpcd_infop = vmalloc(sizeof (struct cdrom_device_info));
+		if (sbpcd_infop == NULL)
+		{
+                        release_region(CDo_command,4);
+			blk_cleanup_queue(sbpcd_queue);
+                        return -ENOMEM;
+		}
+		memset(sbpcd_infop, 0, sizeof(struct cdrom_device_info));
+		sbpcd_infop->ops = &sbpcd_dops;
+		sbpcd_infop->speed = 2;
+		sbpcd_infop->capacity = 1;
+		sprintf(sbpcd_infop->name, "sbpcd%d", j);
+		sbpcd_infop->handle = p;
+		p->sbpcd_infop = sbpcd_infop;
+		disk = alloc_disk(1);
+		disk->major = MAJOR_NR;
+		disk->first_minor = j;
+		disk->fops = &sbpcd_bdops;
+		strcpy(disk->disk_name, sbpcd_infop->name);
+		disk->flags = GENHD_FL_CD;
+		sprintf(disk->devfs_name, "sbp/c0t%d", p->drv_id);
+		p->disk = disk;
+		if (register_cdrom(sbpcd_infop))
+		{
+			printk(" sbpcd: Unable to register with Uniform CD-ROm driver\n");
+		}
+		disk->private_data = p;
+		disk->queue = sbpcd_queue;
+		add_disk(disk);
+	}
+	blk_queue_hardsect_size(sbpcd_queue, CD_FRAMESIZE);
+
+#ifndef MODULE
+ init_done:
+#endif
+	return 0;
+}
+/*==========================================================================*/
+#ifdef MODULE
+void sbpcd_exit(void)
+{
+	int j;
+	
+	if ((unregister_blkdev(MAJOR_NR, major_name) == -EINVAL))
+	{
+		msg(DBG_INF, "What's that: can't unregister %s.\n", major_name);
+		return;
+	}
+	release_region(CDo_command,4);
+	blk_cleanup_queue(sbpcd_queue);
+	for (j=0;j<NR_SBPCD;j++)
+	{
+		if (D_S[j].drv_id==-1) continue;
+		del_gendisk(D_S[j].disk);
+		put_disk(D_S[j].disk);
+		devfs_remove("sbp/c0t%d", j);
+		vfree(D_S[j].sbp_buf);
+		if (D_S[j].sbp_audsiz>0) vfree(D_S[j].aud_buf);
+		if ((unregister_cdrom(D_S[j].sbpcd_infop) == -EINVAL))
+		{
+			msg(DBG_INF, "What's that: can't unregister info %s.\n", major_name);
+			return;
+		}
+		vfree(D_S[j].sbpcd_infop);
+	}
+	devfs_remove("sbp");
+	msg(DBG_INF, "%s module released.\n", major_name);
+}
+
+
+module_init(__sbpcd_init) /*HACK!*/;
+module_exit(sbpcd_exit);
+
+
+#endif /* MODULE */
+static int sbpcd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
+{
+	struct sbpcd_drive *p = cdi->handle;
+	msg(DBG_CHK,"media_check (%s) called\n", cdi->name);
+	
+	if (p->CD_changed==0xFF)
+        {
+                p->CD_changed=0;
+                msg(DBG_CHK,"medium changed (drive %s)\n", cdi->name);
+		current_drive->diskstate_flags &= ~toc_bit;
+		/* we *don't* need invalidate here, it's done by caller */
+		current_drive->diskstate_flags &= ~cd_size_bit;
+#ifdef SAFE_MIXED
+		current_drive->has_data=0;
+#endif /* SAFE_MIXED */ 
+
+                return (1);
+        }
+        else
+                return (0);
+}
+
+MODULE_LICENSE("GPL");
+/* FIXME: Old modules.conf claims MATSUSHITA_CDROM2_MAJOR and CDROM3, but
+   AFAICT this doesn't support those majors, so why? --RR 30 Jul 2003 */
+MODULE_ALIAS_BLOCKDEV_MAJOR(MATSUSHITA_CDROM_MAJOR);
+
+/*==========================================================================*/
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file. 
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 8
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -8
+ * c-argdecl-indent: 8
+ * c-label-offset: -8
+ * c-continued-statement-offset: 8
+ * c-continued-brace-offset: 0
+ * End:
+ */
+