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8d06afab73
Clean up timer initialization by introducing DEFINE_TIMER a'la DEFINE_SPINLOCK. Build and boot-tested on x86. A similar patch has been been in the -RT tree for some time. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2495 lines
68 KiB
C
2495 lines
68 KiB
C
#define AZT_VERSION "2.60"
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/* $Id: aztcd.c,v 2.60 1997/11/29 09:51:19 root Exp root $
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linux/drivers/block/aztcd.c - Aztech CD268 CDROM driver
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Copyright (C) 1994-98 Werner Zimmermann(Werner.Zimmermann@fht-esslingen.de)
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based on Mitsumi CDROM driver by Martin Hariss and preworks by
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Eberhard Moenkeberg; contains contributions by Joe Nardone and Robby
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Schirmer.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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HISTORY
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V0.0 Adaption to Aztech CD268-01A Version 1.3
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Version is PRE_ALPHA, unresolved points:
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1. I use busy wait instead of timer wait in STEN_LOW,DTEN_LOW
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thus driver causes CPU overhead and is very slow
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2. could not find a way to stop the drive, when it is
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in data read mode, therefore I had to set
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msf.end.min/sec/frame to 0:0:1 (in azt_poll); so only one
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frame can be read in sequence, this is also the reason for
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3. getting 'timeout in state 4' messages, but nevertheless
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it works
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W.Zimmermann, Oct. 31, 1994
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V0.1 Version is ALPHA, problems #2 and #3 resolved.
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W.Zimmermann, Nov. 3, 1994
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V0.2 Modification to some comments, debugging aids for partial test
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with Borland C under DOS eliminated. Timer interrupt wait
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STEN_LOW_WAIT additionally to busy wait for STEN_LOW implemented;
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use it only for the 'slow' commands (ACMD_GET_Q_CHANNEL, ACMD_
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SEEK_TO_LEAD_IN), all other commands are so 'fast', that busy
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waiting seems better to me than interrupt rescheduling.
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Besides that, when used in the wrong place, STEN_LOW_WAIT causes
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kernel panic.
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In function aztPlay command ACMD_PLAY_AUDIO added, should make
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audio functions work. The Aztech drive needs different commands
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to read data tracks and play audio tracks.
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W.Zimmermann, Nov. 8, 1994
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V0.3 Recognition of missing drive during boot up improved (speeded up).
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W.Zimmermann, Nov. 13, 1994
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V0.35 Rewrote the control mechanism in azt_poll (formerly mcd_poll)
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including removal of all 'goto' commands. :-);
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J. Nardone, Nov. 14, 1994
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V0.4 Renamed variables and constants to 'azt' instead of 'mcd'; had
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to make some "compatibility" defines in azt.h; please note,
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that the source file was renamed to azt.c, the include file to
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azt.h
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Speeded up drive recognition during init (will be a little bit
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slower than before if no drive is installed!); suggested by
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Robby Schirmer.
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read_count declared volatile and set to AZT_BUF_SIZ to make
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drive faster (now 300kB/sec, was 60kB/sec before, measured
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by 'time dd if=/dev/cdrom of=/dev/null bs=2048 count=4096';
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different AZT_BUF_SIZes were test, above 16 no further im-
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provement seems to be possible; suggested by E.Moenkeberg.
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W.Zimmermann, Nov. 18, 1994
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V0.42 Included getAztStatus command in GetQChannelInfo() to allow
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reading Q-channel info on audio disks, if drive is stopped,
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and some other bug fixes in the audio stuff, suggested by
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Robby Schirmer.
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Added more ioctls (reading data in mode 1 and mode 2).
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Completely removed the old azt_poll() routine.
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Detection of ORCHID CDS-3110 in aztcd_init implemented.
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Additional debugging aids (see the readme file).
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W.Zimmermann, Dec. 9, 1994
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V0.50 Autodetection of drives implemented.
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W.Zimmermann, Dec. 12, 1994
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V0.52 Prepared for including in the standard kernel, renamed most
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variables to contain 'azt', included autoconf.h
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W.Zimmermann, Dec. 16, 1994
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V0.6 Version for being included in the standard Linux kernel.
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Renamed source and header file to aztcd.c and aztcd.h
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W.Zimmermann, Dec. 24, 1994
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V0.7 Changed VERIFY_READ to VERIFY_WRITE in aztcd_ioctl, case
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CDROMREADMODE1 and CDROMREADMODE2; bug fix in the ioctl,
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which causes kernel crashes when playing audio, changed
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include-files (config.h instead of autoconf.h, removed
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delay.h)
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W.Zimmermann, Jan. 8, 1995
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V0.72 Some more modifications for adaption to the standard kernel.
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W.Zimmermann, Jan. 16, 1995
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V0.80 aztcd is now part of the standard kernel since version 1.1.83.
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Modified the SET_TIMER and CLEAR_TIMER macros to comply with
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the new timer scheme.
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W.Zimmermann, Jan. 21, 1995
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V0.90 Included CDROMVOLCTRL, but with my Aztech drive I can only turn
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the channels on and off. If it works better with your drive,
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please mail me. Also implemented ACMD_CLOSE for CDROMSTART.
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W.Zimmermann, Jan. 24, 1995
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V1.00 Implemented close and lock tray commands. Patches supplied by
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Frank Racis
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Added support for loadable MODULEs, so aztcd can now also be
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loaded by insmod and removed by rmmod during run time
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Werner Zimmermann, Mar. 24, 95
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V1.10 Implemented soundcard configuration for Orchid CDS-3110 drives
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connected to Soundwave32 cards. Release for LST 2.1.
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(still experimental)
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Werner Zimmermann, May 8, 95
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V1.20 Implemented limited support for DOSEMU0.60's cdrom.c. Now it works, but
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sometimes DOSEMU may hang for 30 seconds or so. A fully functional ver-
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sion needs an update of Dosemu0.60's cdrom.c, which will come with the
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next revision of Dosemu.
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Also Soundwave32 support now works.
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Werner Zimmermann, May 22, 95
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V1.30 Auto-eject feature. Inspired by Franc Racis (racis@psu.edu)
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Werner Zimmermann, July 4, 95
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V1.40 Started multisession support. Implementation copied from mcdx.c
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by Heiko Schlittermann. Not tested yet.
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Werner Zimmermann, July 15, 95
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V1.50 Implementation of ioctl CDROMRESET, continued multisession, began
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XA, but still untested. Heavy modifications to drive status de-
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tection.
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Werner Zimmermann, July 25, 95
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V1.60 XA support now should work. Speeded up drive recognition in cases,
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where no drive is installed.
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Werner Zimmermann, August 8, 1995
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V1.70 Multisession support now is completed, but there is still not
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enough testing done. If you can test it, please contact me. For
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details please read Documentation/cdrom/aztcd
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Werner Zimmermann, August 19, 1995
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V1.80 Modification to suit the new kernel boot procedure introduced
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with kernel 1.3.33. Will definitely not work with older kernels.
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Programming done by Linus himself.
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Werner Zimmermann, October 11, 1995
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V1.90 Support for Conrad TXC drives, thank's to Jochen Kunz and Olaf Kaluza.
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Werner Zimmermann, October 21, 1995
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V2.00 Changed #include "blk.h" to <linux/blk.h> as the directory
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structure was changed. README.aztcd is now /usr/src/docu-
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mentation/cdrom/aztcd
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Werner Zimmermann, November 10, 95
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V2.10 Started to modify azt_poll to prevent reading beyond end of
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tracks.
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Werner Zimmermann, December 3, 95
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V2.20 Changed some comments
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Werner Zimmermann, April 1, 96
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V2.30 Implemented support for CyCDROM CR520, CR940, Code for CR520
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delivered by H.Berger with preworks by E.Moenkeberg.
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Werner Zimmermann, April 29, 96
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V2.40 Reorganized the placement of functions in the source code file
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to reflect the layered approach; did not actually change code
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Werner Zimmermann, May 1, 96
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V2.50 Heiko Eissfeldt suggested to remove some VERIFY_READs in
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aztcd_ioctl; check_aztcd_media_change modified
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Werner Zimmermann, May 16, 96
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V2.60 Implemented Auto-Probing; made changes for kernel's 2.1.xx blocksize
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Adaption to linux kernel > 2.1.0
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Werner Zimmermann, Nov 29, 97
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November 1999 -- Make kernel-parameter implementation work with 2.3.x
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Removed init_module & cleanup_module in favor of
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module_init & module_exit.
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Torben Mathiasen <tmm@image.dk>
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*/
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#include <linux/blkdev.h>
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#include "aztcd.h"
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/timer.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/cdrom.h>
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#include <linux/ioport.h>
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#include <linux/string.h>
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#include <linux/major.h>
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#include <linux/init.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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/*###########################################################################
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Defines
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###########################################################################
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*/
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#define MAJOR_NR AZTECH_CDROM_MAJOR
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#define QUEUE (azt_queue)
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#define CURRENT elv_next_request(azt_queue)
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#define SET_TIMER(func, jifs) delay_timer.expires = jiffies + (jifs); \
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delay_timer.function = (void *) (func); \
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add_timer(&delay_timer);
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#define CLEAR_TIMER del_timer(&delay_timer);
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#define RETURNM(message,value) {printk("aztcd: Warning: %s failed\n",message);\
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return value;}
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#define RETURN(message) {printk("aztcd: Warning: %s failed\n",message);\
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return;}
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/* Macros to switch the IDE-interface to the slave device and back to the master*/
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#define SWITCH_IDE_SLAVE outb_p(0xa0,azt_port+6); \
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outb_p(0x10,azt_port+6); \
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outb_p(0x00,azt_port+7); \
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outb_p(0x10,azt_port+6);
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#define SWITCH_IDE_MASTER outb_p(0xa0,azt_port+6);
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#if 0
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#define AZT_TEST
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#define AZT_TEST1 /* <int-..> */
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#define AZT_TEST2 /* do_aztcd_request */
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#define AZT_TEST3 /* AZT_S_state */
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#define AZT_TEST4 /* QUICK_LOOP-counter */
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#define AZT_TEST5 /* port(1) state */
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#define AZT_DEBUG
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#define AZT_DEBUG_MULTISESSION
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#endif
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static struct request_queue *azt_queue;
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static int current_valid(void)
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{
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return CURRENT &&
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CURRENT->cmd == READ &&
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CURRENT->sector != -1;
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}
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#define AFL_STATUSorDATA (AFL_STATUS | AFL_DATA)
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#define AZT_BUF_SIZ 16
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#define READ_TIMEOUT 3000
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#define azt_port aztcd /*needed for the modutils */
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/*##########################################################################
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Type Definitions
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##########################################################################
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*/
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enum azt_state_e { AZT_S_IDLE, /* 0 */
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AZT_S_START, /* 1 */
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AZT_S_MODE, /* 2 */
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AZT_S_READ, /* 3 */
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AZT_S_DATA, /* 4 */
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AZT_S_STOP, /* 5 */
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AZT_S_STOPPING /* 6 */
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};
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enum azt_read_modes { AZT_MODE_0, /*read mode for audio disks, not supported by Aztech firmware */
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AZT_MODE_1, /*read mode for normal CD-ROMs */
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AZT_MODE_2 /*read mode for XA CD-ROMs */
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};
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/*##########################################################################
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Global Variables
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##########################################################################
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*/
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static int aztPresent = 0;
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static volatile int azt_transfer_is_active = 0;
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static char azt_buf[CD_FRAMESIZE_RAW * AZT_BUF_SIZ]; /*buffer for block size conversion */
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#if AZT_PRIVATE_IOCTLS
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static char buf[CD_FRAMESIZE_RAW]; /*separate buffer for the ioctls */
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#endif
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static volatile int azt_buf_bn[AZT_BUF_SIZ], azt_next_bn;
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static volatile int azt_buf_in, azt_buf_out = -1;
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static volatile int azt_error = 0;
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static int azt_open_count = 0;
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static volatile enum azt_state_e azt_state = AZT_S_IDLE;
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#ifdef AZT_TEST3
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static volatile enum azt_state_e azt_state_old = AZT_S_STOP;
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static volatile int azt_st_old = 0;
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#endif
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static volatile enum azt_read_modes azt_read_mode = AZT_MODE_1;
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static int azt_mode = -1;
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static volatile int azt_read_count = 1;
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static int azt_port = AZT_BASE_ADDR;
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module_param(azt_port, int, 0);
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static int azt_port_auto[16] = AZT_BASE_AUTO;
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static char azt_cont = 0;
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static char azt_init_end = 0;
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static char azt_auto_eject = AZT_AUTO_EJECT;
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static int AztTimeout, AztTries;
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static DECLARE_WAIT_QUEUE_HEAD(azt_waitq);
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static DEFINE_TIMER(delay_timer, NULL, 0, 0);
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static struct azt_DiskInfo DiskInfo;
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static struct azt_Toc Toc[MAX_TRACKS];
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static struct azt_Play_msf azt_Play;
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static int aztAudioStatus = CDROM_AUDIO_NO_STATUS;
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static char aztDiskChanged = 1;
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static char aztTocUpToDate = 0;
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static unsigned char aztIndatum;
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static unsigned long aztTimeOutCount;
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static int aztCmd = 0;
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static DEFINE_SPINLOCK(aztSpin);
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/*###########################################################################
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Function Prototypes
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###########################################################################
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*/
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/* CDROM Drive Low Level I/O Functions */
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static void aztStatTimer(void);
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/* CDROM Drive Command Functions */
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static int aztGetDiskInfo(void);
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#if AZT_MULTISESSION
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static int aztGetMultiDiskInfo(void);
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#endif
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static int aztGetToc(int multi);
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/* Kernel Interface Functions */
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static int check_aztcd_media_change(struct gendisk *disk);
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static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
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unsigned long arg);
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static int aztcd_open(struct inode *ip, struct file *fp);
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static int aztcd_release(struct inode *inode, struct file *file);
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static struct block_device_operations azt_fops = {
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.owner = THIS_MODULE,
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.open = aztcd_open,
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.release = aztcd_release,
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.ioctl = aztcd_ioctl,
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.media_changed = check_aztcd_media_change,
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};
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/* Aztcd State Machine: Controls Drive Operating State */
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static void azt_poll(void);
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/* Miscellaneous support functions */
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static void azt_hsg2msf(long hsg, struct msf *msf);
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static long azt_msf2hsg(struct msf *mp);
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static void azt_bin2bcd(unsigned char *p);
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static int azt_bcd2bin(unsigned char bcd);
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/*##########################################################################
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CDROM Drive Low Level I/O Functions
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##########################################################################
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*/
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/* Macros for the drive hardware interface handshake, these macros use
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busy waiting */
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/* Wait for OP_OK = drive answers with AFL_OP_OK after receiving a command*/
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# define OP_OK op_ok()
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static void op_ok(void)
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{
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aztTimeOutCount = 0;
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do {
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aztIndatum = inb(DATA_PORT);
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aztTimeOutCount++;
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if (aztTimeOutCount >= AZT_TIMEOUT) {
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printk("aztcd: Error Wait OP_OK\n");
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break;
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}
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} while (aztIndatum != AFL_OP_OK);
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}
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/* Wait for PA_OK = drive answers with AFL_PA_OK after receiving parameters*/
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#if 0
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# define PA_OK pa_ok()
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static void pa_ok(void)
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{
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aztTimeOutCount = 0;
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do {
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aztIndatum = inb(DATA_PORT);
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aztTimeOutCount++;
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if (aztTimeOutCount >= AZT_TIMEOUT) {
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printk("aztcd: Error Wait PA_OK\n");
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break;
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}
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} while (aztIndatum != AFL_PA_OK);
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}
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#endif
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/* Wait for STEN=Low = handshake signal 'AFL_.._OK available or command executed*/
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# define STEN_LOW sten_low()
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static void sten_low(void)
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{
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aztTimeOutCount = 0;
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do {
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aztIndatum = inb(STATUS_PORT);
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aztTimeOutCount++;
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if (aztTimeOutCount >= AZT_TIMEOUT) {
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if (azt_init_end)
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printk
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("aztcd: Error Wait STEN_LOW commands:%x\n",
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aztCmd);
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break;
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}
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} while (aztIndatum & AFL_STATUS);
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}
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/* Wait for DTEN=Low = handshake signal 'Data available'*/
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# define DTEN_LOW dten_low()
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static void dten_low(void)
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{
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aztTimeOutCount = 0;
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do {
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aztIndatum = inb(STATUS_PORT);
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aztTimeOutCount++;
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if (aztTimeOutCount >= AZT_TIMEOUT) {
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printk("aztcd: Error Wait DTEN_OK\n");
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break;
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}
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} while (aztIndatum & AFL_DATA);
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}
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/*
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* Macro for timer wait on STEN=Low, should only be used for 'slow' commands;
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* may cause kernel panic when used in the wrong place
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*/
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#define STEN_LOW_WAIT statusAzt()
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static void statusAzt(void)
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{
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AztTimeout = AZT_STATUS_DELAY;
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SET_TIMER(aztStatTimer, HZ / 100);
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sleep_on(&azt_waitq);
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if (AztTimeout <= 0)
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printk("aztcd: Error Wait STEN_LOW_WAIT command:%x\n",
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aztCmd);
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return;
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}
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static void aztStatTimer(void)
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{
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if (!(inb(STATUS_PORT) & AFL_STATUS)) {
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wake_up(&azt_waitq);
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return;
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}
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AztTimeout--;
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if (AztTimeout <= 0) {
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wake_up(&azt_waitq);
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|
printk("aztcd: Error aztStatTimer: Timeout\n");
|
|
return;
|
|
}
|
|
SET_TIMER(aztStatTimer, HZ / 100);
|
|
}
|
|
|
|
/*##########################################################################
|
|
CDROM Drive Command Functions
|
|
##########################################################################
|
|
*/
|
|
/*
|
|
* Send a single command, return -1 on error, else 0
|
|
*/
|
|
static int aztSendCmd(int cmd)
|
|
{
|
|
unsigned char data;
|
|
int retry;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: Executing command %x\n", cmd);
|
|
#endif
|
|
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
|
SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
|
|
|
|
aztCmd = cmd;
|
|
outb(POLLED, MODE_PORT);
|
|
do {
|
|
if (inb(STATUS_PORT) & AFL_STATUS)
|
|
break;
|
|
inb(DATA_PORT); /* if status left from last command, read and */
|
|
} while (1); /* discard it */
|
|
do {
|
|
if (inb(STATUS_PORT) & AFL_DATA)
|
|
break;
|
|
inb(DATA_PORT); /* if data left from last command, read and */
|
|
} while (1); /* discard it */
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
|
outb((unsigned char) cmd, CMD_PORT);
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
if (data == AFL_OP_OK) {
|
|
return 0;
|
|
} /*OP_OK? */
|
|
if (data == AFL_OP_ERR) {
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
printk
|
|
("### Error 1 aztcd: aztSendCmd %x Error Code %x\n",
|
|
cmd, data);
|
|
}
|
|
}
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
|
printk("### Error 2 aztcd: aztSendCmd %x \n", cmd);
|
|
azt_error = 0xA5;
|
|
}
|
|
RETURNM("aztSendCmd", -1);
|
|
}
|
|
|
|
/*
|
|
* Send a play or read command to the drive, return -1 on error, else 0
|
|
*/
|
|
static int sendAztCmd(int cmd, struct azt_Play_msf *params)
|
|
{
|
|
unsigned char data;
|
|
int retry;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: play start=%02x:%02x:%02x end=%02x:%02x:%02x\n",
|
|
params->start.min, params->start.sec, params->start.frame,
|
|
params->end.min, params->end.sec, params->end.frame);
|
|
#endif
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
|
aztSendCmd(cmd);
|
|
outb(params->start.min, CMD_PORT);
|
|
outb(params->start.sec, CMD_PORT);
|
|
outb(params->start.frame, CMD_PORT);
|
|
outb(params->end.min, CMD_PORT);
|
|
outb(params->end.sec, CMD_PORT);
|
|
outb(params->end.frame, CMD_PORT);
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
if (data == AFL_PA_OK) {
|
|
return 0;
|
|
} /*PA_OK ? */
|
|
if (data == AFL_PA_ERR) {
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
printk
|
|
("### Error 1 aztcd: sendAztCmd %x Error Code %x\n",
|
|
cmd, data);
|
|
}
|
|
}
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
|
printk("### Error 2 aztcd: sendAztCmd %x\n ", cmd);
|
|
azt_error = 0xA5;
|
|
}
|
|
RETURNM("sendAztCmd", -1);
|
|
}
|
|
|
|
/*
|
|
* Send a seek command to the drive, return -1 on error, else 0
|
|
*/
|
|
static int aztSeek(struct azt_Play_msf *params)
|
|
{
|
|
unsigned char data;
|
|
int retry;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: aztSeek %02x:%02x:%02x\n",
|
|
params->start.min, params->start.sec, params->start.frame);
|
|
#endif
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
|
aztSendCmd(ACMD_SEEK);
|
|
outb(params->start.min, CMD_PORT);
|
|
outb(params->start.sec, CMD_PORT);
|
|
outb(params->start.frame, CMD_PORT);
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
if (data == AFL_PA_OK) {
|
|
return 0;
|
|
} /*PA_OK ? */
|
|
if (data == AFL_PA_ERR) {
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
printk("### Error 1 aztcd: aztSeek\n");
|
|
}
|
|
}
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
|
printk("### Error 2 aztcd: aztSeek\n ");
|
|
azt_error = 0xA5;
|
|
}
|
|
RETURNM("aztSeek", -1);
|
|
}
|
|
|
|
/* Send a Set Disk Type command
|
|
does not seem to work with Aztech drives, behavior is completely indepen-
|
|
dent on which mode is set ???
|
|
*/
|
|
static int aztSetDiskType(int type)
|
|
{
|
|
unsigned char data;
|
|
int retry;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: set disk type command: type= %i\n", type);
|
|
#endif
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
|
aztSendCmd(ACMD_SET_DISK_TYPE);
|
|
outb(type, CMD_PORT);
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
if (data == AFL_PA_OK) { /*PA_OK ? */
|
|
azt_read_mode = type;
|
|
return 0;
|
|
}
|
|
if (data == AFL_PA_ERR) {
|
|
STEN_LOW;
|
|
data = inb(DATA_PORT);
|
|
printk
|
|
("### Error 1 aztcd: aztSetDiskType %x Error Code %x\n",
|
|
type, data);
|
|
}
|
|
}
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
|
printk("### Error 2 aztcd: aztSetDiskType %x\n ", type);
|
|
azt_error = 0xA5;
|
|
}
|
|
RETURNM("aztSetDiskType", -1);
|
|
}
|
|
|
|
|
|
/* used in azt_poll to poll the status, expects another program to issue a
|
|
* ACMD_GET_STATUS directly before
|
|
*/
|
|
static int aztStatus(void)
|
|
{
|
|
int st;
|
|
/* int i;
|
|
|
|
i = inb(STATUS_PORT) & AFL_STATUS; is STEN=0? ???
|
|
if (!i)
|
|
*/ STEN_LOW;
|
|
if (aztTimeOutCount < AZT_TIMEOUT) {
|
|
st = inb(DATA_PORT) & 0xFF;
|
|
return st;
|
|
} else
|
|
RETURNM("aztStatus", -1);
|
|
}
|
|
|
|
/*
|
|
* Get the drive status
|
|
*/
|
|
static int getAztStatus(void)
|
|
{
|
|
int st;
|
|
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
|
RETURNM("getAztStatus 1", -1);
|
|
STEN_LOW;
|
|
st = inb(DATA_PORT) & 0xFF;
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: Status = %x\n", st);
|
|
#endif
|
|
if ((st == 0xFF) || (st & AST_CMD_CHECK)) {
|
|
printk
|
|
("aztcd: AST_CMD_CHECK error or no status available\n");
|
|
return -1;
|
|
}
|
|
|
|
if (((st & AST_MODE_BITS) != AST_BUSY)
|
|
&& (aztAudioStatus == CDROM_AUDIO_PLAY))
|
|
/* XXX might be an error? look at q-channel? */
|
|
aztAudioStatus = CDROM_AUDIO_COMPLETED;
|
|
|
|
if ((st & AST_DSK_CHG) || (st & AST_NOT_READY)) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
|
}
|
|
return st;
|
|
}
|
|
|
|
|
|
/*
|
|
* Send a 'Play' command and get the status. Use only from the top half.
|
|
*/
|
|
static int aztPlay(struct azt_Play_msf *arg)
|
|
{
|
|
if (sendAztCmd(ACMD_PLAY_AUDIO, arg) < 0)
|
|
RETURNM("aztPlay", -1);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Subroutines to automatically close the door (tray) and
|
|
* lock it closed when the cd is mounted. Leave the tray
|
|
* locking as an option
|
|
*/
|
|
static void aztCloseDoor(void)
|
|
{
|
|
aztSendCmd(ACMD_CLOSE);
|
|
STEN_LOW;
|
|
return;
|
|
}
|
|
|
|
static void aztLockDoor(void)
|
|
{
|
|
#if AZT_ALLOW_TRAY_LOCK
|
|
aztSendCmd(ACMD_LOCK);
|
|
STEN_LOW;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
static void aztUnlockDoor(void)
|
|
{
|
|
#if AZT_ALLOW_TRAY_LOCK
|
|
aztSendCmd(ACMD_UNLOCK);
|
|
STEN_LOW;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Read a value from the drive. Should return quickly, so a busy wait
|
|
* is used to avoid excessive rescheduling. The read command itself must
|
|
* be issued with aztSendCmd() directly before
|
|
*/
|
|
static int aztGetValue(unsigned char *result)
|
|
{
|
|
int s;
|
|
|
|
STEN_LOW;
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
|
printk("aztcd: aztGetValue timeout\n");
|
|
return -1;
|
|
}
|
|
s = inb(DATA_PORT) & 0xFF;
|
|
*result = (unsigned char) s;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Read the current Q-channel info. Also used for reading the
|
|
* table of contents.
|
|
*/
|
|
static int aztGetQChannelInfo(struct azt_Toc *qp)
|
|
{
|
|
unsigned char notUsed;
|
|
int st;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztGetQChannelInfo Time:%li\n", jiffies);
|
|
#endif
|
|
if ((st = getAztStatus()) == -1)
|
|
RETURNM("aztGetQChannelInfo 1", -1);
|
|
if (aztSendCmd(ACMD_GET_Q_CHANNEL))
|
|
RETURNM("aztGetQChannelInfo 2", -1);
|
|
/*STEN_LOW_WAIT; ??? Dosemu0.60's cdrom.c does not like STEN_LOW_WAIT here */
|
|
if (aztGetValue(¬Used))
|
|
RETURNM("aztGetQChannelInfo 3", -1); /*??? Nullbyte einlesen */
|
|
if ((st & AST_MODE_BITS) == AST_INITIAL) {
|
|
qp->ctrl_addr = 0; /* when audio stop ACMD_GET_Q_CHANNEL returns */
|
|
qp->track = 0; /* only one byte with Aztech drives */
|
|
qp->pointIndex = 0;
|
|
qp->trackTime.min = 0;
|
|
qp->trackTime.sec = 0;
|
|
qp->trackTime.frame = 0;
|
|
qp->diskTime.min = 0;
|
|
qp->diskTime.sec = 0;
|
|
qp->diskTime.frame = 0;
|
|
return 0;
|
|
} else {
|
|
if (aztGetValue(&qp->ctrl_addr) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->track) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->pointIndex) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->trackTime.min) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->trackTime.sec) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->trackTime.frame) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(¬Used) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->diskTime.min) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->diskTime.sec) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
if (aztGetValue(&qp->diskTime.frame) < 0)
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
|
}
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztGetQChannelInfo Time:%li\n", jiffies);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Read the table of contents (TOC) and TOC header if necessary
|
|
*/
|
|
static int aztUpdateToc(void)
|
|
{
|
|
int st;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztUpdateToc Time:%li\n", jiffies);
|
|
#endif
|
|
if (aztTocUpToDate)
|
|
return 0;
|
|
|
|
if (aztGetDiskInfo() < 0)
|
|
return -EIO;
|
|
|
|
if (aztGetToc(0) < 0)
|
|
return -EIO;
|
|
|
|
/*audio disk detection
|
|
with my Aztech drive there is no audio status bit, so I use the copy
|
|
protection bit of the first track. If this track is copy protected
|
|
(copy bit = 0), I assume, it's an audio disk. Strange, but works ??? */
|
|
if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
|
|
DiskInfo.audio = 1;
|
|
else
|
|
DiskInfo.audio = 0;
|
|
|
|
/* XA detection */
|
|
if (!DiskInfo.audio) {
|
|
azt_Play.start.min = 0; /*XA detection only seems to work */
|
|
azt_Play.start.sec = 2; /*when we play a track */
|
|
azt_Play.start.frame = 0;
|
|
azt_Play.end.min = 0;
|
|
azt_Play.end.sec = 0;
|
|
azt_Play.end.frame = 1;
|
|
if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
|
|
return -1;
|
|
DTEN_LOW;
|
|
for (st = 0; st < CD_FRAMESIZE; st++)
|
|
inb(DATA_PORT);
|
|
}
|
|
DiskInfo.xa = getAztStatus() & AST_MODE;
|
|
if (DiskInfo.xa) {
|
|
printk
|
|
("aztcd: XA support experimental - mail results to Werner.Zimmermann@fht-esslingen.de\n");
|
|
}
|
|
|
|
/*multisession detection
|
|
support for multisession CDs is done automatically with Aztech drives,
|
|
we don't have to take care about TOC redirection; if we want the isofs
|
|
to take care about redirection, we have to set AZT_MULTISESSION to 1 */
|
|
DiskInfo.multi = 0;
|
|
#if AZT_MULTISESSION
|
|
if (DiskInfo.xa) {
|
|
aztGetMultiDiskInfo(); /*here Disk.Info.multi is set */
|
|
}
|
|
#endif
|
|
if (DiskInfo.multi) {
|
|
DiskInfo.lastSession.min = Toc[DiskInfo.next].diskTime.min;
|
|
DiskInfo.lastSession.sec = Toc[DiskInfo.next].diskTime.sec;
|
|
DiskInfo.lastSession.frame =
|
|
Toc[DiskInfo.next].diskTime.frame;
|
|
printk("aztcd: Multisession support experimental\n");
|
|
} else {
|
|
DiskInfo.lastSession.min =
|
|
Toc[DiskInfo.first].diskTime.min;
|
|
DiskInfo.lastSession.sec =
|
|
Toc[DiskInfo.first].diskTime.sec;
|
|
DiskInfo.lastSession.frame =
|
|
Toc[DiskInfo.first].diskTime.frame;
|
|
}
|
|
|
|
aztTocUpToDate = 1;
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztUpdateToc Time:%li\n", jiffies);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Read the table of contents header, i.e. no. of tracks and start of first
|
|
* track
|
|
*/
|
|
static int aztGetDiskInfo(void)
|
|
{
|
|
int limit;
|
|
unsigned char test;
|
|
struct azt_Toc qInfo;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztGetDiskInfo Time:%li\n", jiffies);
|
|
#endif
|
|
if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
|
|
RETURNM("aztGetDiskInfo 1", -1);
|
|
STEN_LOW_WAIT;
|
|
test = 0;
|
|
for (limit = 300; limit > 0; limit--) {
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
|
RETURNM("aztGetDiskInfo 2", -1);
|
|
if (qInfo.pointIndex == 0xA0) { /*Number of FirstTrack */
|
|
DiskInfo.first = qInfo.diskTime.min;
|
|
DiskInfo.first = azt_bcd2bin(DiskInfo.first);
|
|
test = test | 0x01;
|
|
}
|
|
if (qInfo.pointIndex == 0xA1) { /*Number of LastTrack */
|
|
DiskInfo.last = qInfo.diskTime.min;
|
|
DiskInfo.last = azt_bcd2bin(DiskInfo.last);
|
|
test = test | 0x02;
|
|
}
|
|
if (qInfo.pointIndex == 0xA2) { /*DiskLength */
|
|
DiskInfo.diskLength.min = qInfo.diskTime.min;
|
|
DiskInfo.diskLength.sec = qInfo.diskTime.sec;
|
|
DiskInfo.diskLength.frame = qInfo.diskTime.frame;
|
|
test = test | 0x04;
|
|
}
|
|
if ((qInfo.pointIndex == DiskInfo.first) && (test & 0x01)) { /*StartTime of First Track */
|
|
DiskInfo.firstTrack.min = qInfo.diskTime.min;
|
|
DiskInfo.firstTrack.sec = qInfo.diskTime.sec;
|
|
DiskInfo.firstTrack.frame = qInfo.diskTime.frame;
|
|
test = test | 0x08;
|
|
}
|
|
if (test == 0x0F)
|
|
break;
|
|
}
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztGetDiskInfo Time:%li\n", jiffies);
|
|
printk
|
|
("Disk Info: first %d last %d length %02X:%02X.%02X dez first %02X:%02X.%02X dez\n",
|
|
DiskInfo.first, DiskInfo.last, DiskInfo.diskLength.min,
|
|
DiskInfo.diskLength.sec, DiskInfo.diskLength.frame,
|
|
DiskInfo.firstTrack.min, DiskInfo.firstTrack.sec,
|
|
DiskInfo.firstTrack.frame);
|
|
#endif
|
|
if (test != 0x0F)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
#if AZT_MULTISESSION
|
|
/*
|
|
* Get Multisession Disk Info
|
|
*/
|
|
static int aztGetMultiDiskInfo(void)
|
|
{
|
|
int limit, k = 5;
|
|
unsigned char test;
|
|
struct azt_Toc qInfo;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztGetMultiDiskInfo\n");
|
|
#endif
|
|
|
|
do {
|
|
azt_Play.start.min = Toc[DiskInfo.last + 1].diskTime.min;
|
|
azt_Play.start.sec = Toc[DiskInfo.last + 1].diskTime.sec;
|
|
azt_Play.start.frame =
|
|
Toc[DiskInfo.last + 1].diskTime.frame;
|
|
test = 0;
|
|
|
|
for (limit = 30; limit > 0; limit--) { /*Seek for LeadIn of next session */
|
|
if (aztSeek(&azt_Play))
|
|
RETURNM("aztGetMultiDiskInfo 1", -1);
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
|
RETURNM("aztGetMultiDiskInfo 2", -1);
|
|
if ((qInfo.track == 0) && (qInfo.pointIndex))
|
|
break; /*LeadIn found */
|
|
if ((azt_Play.start.sec += 10) > 59) {
|
|
azt_Play.start.sec = 0;
|
|
azt_Play.start.min++;
|
|
}
|
|
}
|
|
if (!limit)
|
|
break; /*Check, if a leadin track was found, if not we're
|
|
at the end of the disk */
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
|
printk("leadin found track %d pointIndex %x limit %d\n",
|
|
qInfo.track, qInfo.pointIndex, limit);
|
|
#endif
|
|
for (limit = 300; limit > 0; limit--) {
|
|
if (++azt_Play.start.frame > 74) {
|
|
azt_Play.start.frame = 0;
|
|
if (azt_Play.start.sec > 59) {
|
|
azt_Play.start.sec = 0;
|
|
azt_Play.start.min++;
|
|
}
|
|
}
|
|
if (aztSeek(&azt_Play))
|
|
RETURNM("aztGetMultiDiskInfo 3", -1);
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
|
RETURNM("aztGetMultiDiskInfo 4", -1);
|
|
if (qInfo.pointIndex == 0xA0) { /*Number of NextTrack */
|
|
DiskInfo.next = qInfo.diskTime.min;
|
|
DiskInfo.next = azt_bcd2bin(DiskInfo.next);
|
|
test = test | 0x01;
|
|
}
|
|
if (qInfo.pointIndex == 0xA1) { /*Number of LastTrack */
|
|
DiskInfo.last = qInfo.diskTime.min;
|
|
DiskInfo.last = azt_bcd2bin(DiskInfo.last);
|
|
test = test | 0x02;
|
|
}
|
|
if (qInfo.pointIndex == 0xA2) { /*DiskLength */
|
|
DiskInfo.diskLength.min =
|
|
qInfo.diskTime.min;
|
|
DiskInfo.diskLength.sec =
|
|
qInfo.diskTime.sec;
|
|
DiskInfo.diskLength.frame =
|
|
qInfo.diskTime.frame;
|
|
test = test | 0x04;
|
|
}
|
|
if ((qInfo.pointIndex == DiskInfo.next) && (test & 0x01)) { /*StartTime of Next Track */
|
|
DiskInfo.nextSession.min =
|
|
qInfo.diskTime.min;
|
|
DiskInfo.nextSession.sec =
|
|
qInfo.diskTime.sec;
|
|
DiskInfo.nextSession.frame =
|
|
qInfo.diskTime.frame;
|
|
test = test | 0x08;
|
|
}
|
|
if (test == 0x0F)
|
|
break;
|
|
}
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
|
printk
|
|
("MultiDisk Info: first %d next %d last %d length %02x:%02x.%02x dez first %02x:%02x.%02x dez next %02x:%02x.%02x dez\n",
|
|
DiskInfo.first, DiskInfo.next, DiskInfo.last,
|
|
DiskInfo.diskLength.min, DiskInfo.diskLength.sec,
|
|
DiskInfo.diskLength.frame, DiskInfo.firstTrack.min,
|
|
DiskInfo.firstTrack.sec, DiskInfo.firstTrack.frame,
|
|
DiskInfo.nextSession.min, DiskInfo.nextSession.sec,
|
|
DiskInfo.nextSession.frame);
|
|
#endif
|
|
if (test != 0x0F)
|
|
break;
|
|
else
|
|
DiskInfo.multi = 1; /*found TOC of more than one session */
|
|
aztGetToc(1);
|
|
} while (--k);
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztGetMultiDiskInfo Time:%li\n", jiffies);
|
|
#endif
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Read the table of contents (TOC)
|
|
*/
|
|
static int aztGetToc(int multi)
|
|
{
|
|
int i, px;
|
|
int limit;
|
|
struct azt_Toc qInfo;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztGetToc Time:%li\n", jiffies);
|
|
#endif
|
|
if (!multi) {
|
|
for (i = 0; i < MAX_TRACKS; i++)
|
|
Toc[i].pointIndex = 0;
|
|
i = DiskInfo.last + 3;
|
|
} else {
|
|
for (i = DiskInfo.next; i < MAX_TRACKS; i++)
|
|
Toc[i].pointIndex = 0;
|
|
i = DiskInfo.last + 4 - DiskInfo.next;
|
|
}
|
|
|
|
/*Is there a good reason to stop motor before TOC read?
|
|
if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
|
|
STEN_LOW_WAIT;
|
|
*/
|
|
|
|
if (!multi) {
|
|
azt_mode = 0x05;
|
|
if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
|
|
RETURNM("aztGetToc 2", -1);
|
|
STEN_LOW_WAIT;
|
|
}
|
|
for (limit = 300; limit > 0; limit--) {
|
|
if (multi) {
|
|
if (++azt_Play.start.sec > 59) {
|
|
azt_Play.start.sec = 0;
|
|
azt_Play.start.min++;
|
|
}
|
|
if (aztSeek(&azt_Play))
|
|
RETURNM("aztGetToc 3", -1);
|
|
}
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
|
break;
|
|
|
|
px = azt_bcd2bin(qInfo.pointIndex);
|
|
|
|
if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
|
|
if (Toc[px].pointIndex == 0) {
|
|
Toc[px] = qInfo;
|
|
i--;
|
|
}
|
|
|
|
if (i <= 0)
|
|
break;
|
|
}
|
|
|
|
Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
|
|
Toc[DiskInfo.last].trackTime = DiskInfo.diskLength;
|
|
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
|
printk("aztcd: exiting aztGetToc\n");
|
|
for (i = 1; i <= DiskInfo.last + 1; i++)
|
|
printk
|
|
("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
|
|
i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
|
|
Toc[i].trackTime.min, Toc[i].trackTime.sec,
|
|
Toc[i].trackTime.frame, Toc[i].diskTime.min,
|
|
Toc[i].diskTime.sec, Toc[i].diskTime.frame);
|
|
for (i = 100; i < 103; i++)
|
|
printk
|
|
("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
|
|
i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
|
|
Toc[i].trackTime.min, Toc[i].trackTime.sec,
|
|
Toc[i].trackTime.frame, Toc[i].diskTime.min,
|
|
Toc[i].diskTime.sec, Toc[i].diskTime.frame);
|
|
#endif
|
|
|
|
return limit > 0 ? 0 : -1;
|
|
}
|
|
|
|
|
|
/*##########################################################################
|
|
Kernel Interface Functions
|
|
##########################################################################
|
|
*/
|
|
|
|
#ifndef MODULE
|
|
static int __init aztcd_setup(char *str)
|
|
{
|
|
int ints[4];
|
|
|
|
(void) get_options(str, ARRAY_SIZE(ints), ints);
|
|
|
|
if (ints[0] > 0)
|
|
azt_port = ints[1];
|
|
if (ints[1] > 1)
|
|
azt_cont = ints[2];
|
|
return 1;
|
|
}
|
|
|
|
__setup("aztcd=", aztcd_setup);
|
|
|
|
#endif /* !MODULE */
|
|
|
|
/*
|
|
* Checking if the media has been changed
|
|
*/
|
|
static int check_aztcd_media_change(struct gendisk *disk)
|
|
{
|
|
if (aztDiskChanged) { /* disk changed */
|
|
aztDiskChanged = 0;
|
|
return 1;
|
|
} else
|
|
return 0; /* no change */
|
|
}
|
|
|
|
/*
|
|
* Kernel IO-controls
|
|
*/
|
|
static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
int i;
|
|
struct azt_Toc qInfo;
|
|
struct cdrom_ti ti;
|
|
struct cdrom_tochdr tocHdr;
|
|
struct cdrom_msf msf;
|
|
struct cdrom_tocentry entry;
|
|
struct azt_Toc *tocPtr;
|
|
struct cdrom_subchnl subchnl;
|
|
struct cdrom_volctrl volctrl;
|
|
void __user *argp = (void __user *)arg;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztcd_ioctl - Command:%x Time: %li\n",
|
|
cmd, jiffies);
|
|
printk("aztcd Status %x\n", getAztStatus());
|
|
#endif
|
|
if (!ip)
|
|
RETURNM("aztcd_ioctl 1", -EINVAL);
|
|
if (getAztStatus() < 0)
|
|
RETURNM("aztcd_ioctl 2", -EIO);
|
|
if ((!aztTocUpToDate) || (aztDiskChanged)) {
|
|
if ((i = aztUpdateToc()) < 0)
|
|
RETURNM("aztcd_ioctl 3", i); /* error reading TOC */
|
|
}
|
|
|
|
switch (cmd) {
|
|
case CDROMSTART: /* Spin up the drive. Don't know, what to do,
|
|
at least close the tray */
|
|
#if AZT_PRIVATE_IOCTLS
|
|
if (aztSendCmd(ACMD_CLOSE))
|
|
RETURNM("aztcd_ioctl 4", -1);
|
|
STEN_LOW_WAIT;
|
|
#endif
|
|
break;
|
|
case CDROMSTOP: /* Spin down the drive */
|
|
if (aztSendCmd(ACMD_STOP))
|
|
RETURNM("aztcd_ioctl 5", -1);
|
|
STEN_LOW_WAIT;
|
|
/* should we do anything if it fails? */
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
|
break;
|
|
case CDROMPAUSE: /* Pause the drive */
|
|
if (aztAudioStatus != CDROM_AUDIO_PLAY)
|
|
return -EINVAL;
|
|
|
|
if (aztGetQChannelInfo(&qInfo) < 0) { /* didn't get q channel info */
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
|
RETURNM("aztcd_ioctl 7", 0);
|
|
}
|
|
azt_Play.start = qInfo.diskTime; /* remember restart point */
|
|
|
|
if (aztSendCmd(ACMD_PAUSE))
|
|
RETURNM("aztcd_ioctl 8", -1);
|
|
STEN_LOW_WAIT;
|
|
aztAudioStatus = CDROM_AUDIO_PAUSED;
|
|
break;
|
|
case CDROMRESUME: /* Play it again, Sam */
|
|
if (aztAudioStatus != CDROM_AUDIO_PAUSED)
|
|
return -EINVAL;
|
|
/* restart the drive at the saved position. */
|
|
i = aztPlay(&azt_Play);
|
|
if (i < 0) {
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
|
return -EIO;
|
|
}
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
|
break;
|
|
case CDROMMULTISESSION: /*multisession support -- experimental */
|
|
{
|
|
struct cdrom_multisession ms;
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd ioctl MULTISESSION\n");
|
|
#endif
|
|
if (copy_from_user(&ms, argp,
|
|
sizeof(struct cdrom_multisession)))
|
|
return -EFAULT;
|
|
if (ms.addr_format == CDROM_MSF) {
|
|
ms.addr.msf.minute =
|
|
azt_bcd2bin(DiskInfo.lastSession.min);
|
|
ms.addr.msf.second =
|
|
azt_bcd2bin(DiskInfo.lastSession.sec);
|
|
ms.addr.msf.frame =
|
|
azt_bcd2bin(DiskInfo.lastSession.
|
|
frame);
|
|
} else if (ms.addr_format == CDROM_LBA)
|
|
ms.addr.lba =
|
|
azt_msf2hsg(&DiskInfo.lastSession);
|
|
else
|
|
return -EINVAL;
|
|
ms.xa_flag = DiskInfo.xa;
|
|
if (copy_to_user(argp, &ms,
|
|
sizeof(struct cdrom_multisession)))
|
|
return -EFAULT;
|
|
#ifdef AZT_DEBUG
|
|
if (ms.addr_format == CDROM_MSF)
|
|
printk
|
|
("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
|
|
ms.xa_flag, ms.addr.msf.minute,
|
|
ms.addr.msf.second, ms.addr.msf.frame,
|
|
DiskInfo.lastSession.min,
|
|
DiskInfo.lastSession.sec,
|
|
DiskInfo.lastSession.frame);
|
|
else
|
|
printk
|
|
("aztcd multisession %d, lba:0x%08x [%02x:%02x.%02x])\n",
|
|
ms.xa_flag, ms.addr.lba,
|
|
DiskInfo.lastSession.min,
|
|
DiskInfo.lastSession.sec,
|
|
DiskInfo.lastSession.frame);
|
|
#endif
|
|
return 0;
|
|
}
|
|
case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
|
|
if (copy_from_user(&ti, argp, sizeof ti))
|
|
return -EFAULT;
|
|
if (ti.cdti_trk0 < DiskInfo.first
|
|
|| ti.cdti_trk0 > DiskInfo.last
|
|
|| ti.cdti_trk1 < ti.cdti_trk0) {
|
|
return -EINVAL;
|
|
}
|
|
if (ti.cdti_trk1 > DiskInfo.last)
|
|
ti.cdti_trk1 = DiskInfo.last;
|
|
azt_Play.start = Toc[ti.cdti_trk0].diskTime;
|
|
azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
|
|
azt_Play.start.min, azt_Play.start.sec,
|
|
azt_Play.start.frame, azt_Play.end.min,
|
|
azt_Play.end.sec, azt_Play.end.frame);
|
|
#endif
|
|
i = aztPlay(&azt_Play);
|
|
if (i < 0) {
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
|
return -EIO;
|
|
}
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
|
break;
|
|
case CDROMPLAYMSF: /* Play starting at the given MSF address. */
|
|
/* if (aztAudioStatus == CDROM_AUDIO_PLAY)
|
|
{ if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
|
|
STEN_LOW;
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
|
}
|
|
*/
|
|
if (copy_from_user(&msf, argp, sizeof msf))
|
|
return -EFAULT;
|
|
/* convert to bcd */
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
|
azt_bin2bcd(&msf.cdmsf_min1);
|
|
azt_bin2bcd(&msf.cdmsf_sec1);
|
|
azt_bin2bcd(&msf.cdmsf_frame1);
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
|
azt_Play.end.min = msf.cdmsf_min1;
|
|
azt_Play.end.sec = msf.cdmsf_sec1;
|
|
azt_Play.end.frame = msf.cdmsf_frame1;
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
|
|
azt_Play.start.min, azt_Play.start.sec,
|
|
azt_Play.start.frame, azt_Play.end.min,
|
|
azt_Play.end.sec, azt_Play.end.frame);
|
|
#endif
|
|
i = aztPlay(&azt_Play);
|
|
if (i < 0) {
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
|
return -EIO;
|
|
}
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
|
break;
|
|
|
|
case CDROMREADTOCHDR: /* Read the table of contents header */
|
|
tocHdr.cdth_trk0 = DiskInfo.first;
|
|
tocHdr.cdth_trk1 = DiskInfo.last;
|
|
if (copy_to_user(argp, &tocHdr, sizeof tocHdr))
|
|
return -EFAULT;
|
|
break;
|
|
case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
|
|
if (copy_from_user(&entry, argp, sizeof entry))
|
|
return -EFAULT;
|
|
if ((!aztTocUpToDate) || aztDiskChanged)
|
|
aztUpdateToc();
|
|
if (entry.cdte_track == CDROM_LEADOUT)
|
|
tocPtr = &Toc[DiskInfo.last + 1];
|
|
else if (entry.cdte_track > DiskInfo.last
|
|
|| entry.cdte_track < DiskInfo.first) {
|
|
return -EINVAL;
|
|
} else
|
|
tocPtr = &Toc[entry.cdte_track];
|
|
entry.cdte_adr = tocPtr->ctrl_addr;
|
|
entry.cdte_ctrl = tocPtr->ctrl_addr >> 4;
|
|
if (entry.cdte_format == CDROM_LBA)
|
|
entry.cdte_addr.lba =
|
|
azt_msf2hsg(&tocPtr->diskTime);
|
|
else if (entry.cdte_format == CDROM_MSF) {
|
|
entry.cdte_addr.msf.minute =
|
|
azt_bcd2bin(tocPtr->diskTime.min);
|
|
entry.cdte_addr.msf.second =
|
|
azt_bcd2bin(tocPtr->diskTime.sec);
|
|
entry.cdte_addr.msf.frame =
|
|
azt_bcd2bin(tocPtr->diskTime.frame);
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
if (copy_to_user(argp, &entry, sizeof entry))
|
|
return -EFAULT;
|
|
break;
|
|
case CDROMSUBCHNL: /* Get subchannel info */
|
|
if (copy_from_user
|
|
(&subchnl, argp, sizeof(struct cdrom_subchnl)))
|
|
return -EFAULT;
|
|
if (aztGetQChannelInfo(&qInfo) < 0) {
|
|
#ifdef AZT_DEBUG
|
|
printk
|
|
("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",
|
|
cmd);
|
|
#endif
|
|
return -EIO;
|
|
}
|
|
subchnl.cdsc_audiostatus = aztAudioStatus;
|
|
subchnl.cdsc_adr = qInfo.ctrl_addr;
|
|
subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
|
|
subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
|
|
subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
|
|
if (subchnl.cdsc_format == CDROM_LBA) {
|
|
subchnl.cdsc_absaddr.lba =
|
|
azt_msf2hsg(&qInfo.diskTime);
|
|
subchnl.cdsc_reladdr.lba =
|
|
azt_msf2hsg(&qInfo.trackTime);
|
|
} else { /*default */
|
|
subchnl.cdsc_format = CDROM_MSF;
|
|
subchnl.cdsc_absaddr.msf.minute =
|
|
azt_bcd2bin(qInfo.diskTime.min);
|
|
subchnl.cdsc_absaddr.msf.second =
|
|
azt_bcd2bin(qInfo.diskTime.sec);
|
|
subchnl.cdsc_absaddr.msf.frame =
|
|
azt_bcd2bin(qInfo.diskTime.frame);
|
|
subchnl.cdsc_reladdr.msf.minute =
|
|
azt_bcd2bin(qInfo.trackTime.min);
|
|
subchnl.cdsc_reladdr.msf.second =
|
|
azt_bcd2bin(qInfo.trackTime.sec);
|
|
subchnl.cdsc_reladdr.msf.frame =
|
|
azt_bcd2bin(qInfo.trackTime.frame);
|
|
}
|
|
if (copy_to_user(argp, &subchnl, sizeof(struct cdrom_subchnl)))
|
|
return -EFAULT;
|
|
break;
|
|
case CDROMVOLCTRL: /* Volume control
|
|
* With my Aztech CD268-01A volume control does not work, I can only
|
|
turn the channels on (any value !=0) or off (value==0). Maybe it
|
|
works better with your drive */
|
|
if (copy_from_user(&volctrl, argp, sizeof(volctrl)))
|
|
return -EFAULT;
|
|
azt_Play.start.min = 0x21;
|
|
azt_Play.start.sec = 0x84;
|
|
azt_Play.start.frame = volctrl.channel0;
|
|
azt_Play.end.min = volctrl.channel1;
|
|
azt_Play.end.sec = volctrl.channel2;
|
|
azt_Play.end.frame = volctrl.channel3;
|
|
sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
|
|
STEN_LOW_WAIT;
|
|
break;
|
|
case CDROMEJECT:
|
|
aztUnlockDoor(); /* Assume user knows what they're doing */
|
|
/* all drives can at least stop! */
|
|
if (aztAudioStatus == CDROM_AUDIO_PLAY) {
|
|
if (aztSendCmd(ACMD_STOP))
|
|
RETURNM("azt_ioctl 10", -1);
|
|
STEN_LOW_WAIT;
|
|
}
|
|
if (aztSendCmd(ACMD_EJECT))
|
|
RETURNM("azt_ioctl 11", -1);
|
|
STEN_LOW_WAIT;
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
|
break;
|
|
case CDROMEJECT_SW:
|
|
azt_auto_eject = (char) arg;
|
|
break;
|
|
case CDROMRESET:
|
|
outb(ACMD_SOFT_RESET, CMD_PORT); /*send reset */
|
|
STEN_LOW;
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? */
|
|
printk
|
|
("aztcd: AZTECH CD-ROM drive does not respond\n");
|
|
}
|
|
break;
|
|
/*Take care, the following code is not compatible with other CD-ROM drivers,
|
|
use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
|
|
if you do not want to use it!
|
|
*/
|
|
#if AZT_PRIVATE_IOCTLS
|
|
case CDROMREADCOOKED: /*read data in mode 1 (2048 Bytes) */
|
|
case CDROMREADRAW: /*read data in mode 2 (2336 Bytes) */
|
|
{
|
|
if (copy_from_user(&msf, argp, sizeof msf))
|
|
return -EFAULT;
|
|
/* convert to bcd */
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
|
msf.cdmsf_min1 = 0;
|
|
msf.cdmsf_sec1 = 0;
|
|
msf.cdmsf_frame1 = 1; /*read only one frame */
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
|
azt_Play.end.min = msf.cdmsf_min1;
|
|
azt_Play.end.sec = msf.cdmsf_sec1;
|
|
azt_Play.end.frame = msf.cdmsf_frame1;
|
|
if (cmd == CDROMREADRAW) {
|
|
if (DiskInfo.xa) {
|
|
return -1; /*XA Disks can't be read raw */
|
|
} else {
|
|
if (sendAztCmd(ACMD_PLAY_READ_RAW, &azt_Play))
|
|
return -1;
|
|
DTEN_LOW;
|
|
insb(DATA_PORT, buf, CD_FRAMESIZE_RAW);
|
|
if (copy_to_user(argp, &buf, CD_FRAMESIZE_RAW))
|
|
return -EFAULT;
|
|
}
|
|
} else
|
|
/*CDROMREADCOOKED*/ {
|
|
if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
|
|
return -1;
|
|
DTEN_LOW;
|
|
insb(DATA_PORT, buf, CD_FRAMESIZE);
|
|
if (copy_to_user(argp, &buf, CD_FRAMESIZE))
|
|
return -EFAULT;
|
|
}
|
|
}
|
|
break;
|
|
case CDROMSEEK: /*seek msf address */
|
|
if (copy_from_user(&msf, argp, sizeof msf))
|
|
return -EFAULT;
|
|
/* convert to bcd */
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
|
if (aztSeek(&azt_Play))
|
|
return -1;
|
|
break;
|
|
#endif /*end of incompatible code */
|
|
case CDROMREADMODE1: /*set read data in mode 1 */
|
|
return aztSetDiskType(AZT_MODE_1);
|
|
case CDROMREADMODE2: /*set read data in mode 2 */
|
|
return aztSetDiskType(AZT_MODE_2);
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztcd_ioctl Command:%x Time:%li\n", cmd,
|
|
jiffies);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Take care of the different block sizes between cdrom and Linux.
|
|
* When Linux gets variable block sizes this will probably go away.
|
|
*/
|
|
static void azt_transfer(void)
|
|
{
|
|
#ifdef AZT_TEST
|
|
printk("aztcd: executing azt_transfer Time:%li\n", jiffies);
|
|
#endif
|
|
if (!current_valid())
|
|
return;
|
|
|
|
while (CURRENT->nr_sectors) {
|
|
int bn = CURRENT->sector / 4;
|
|
int i;
|
|
for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn; ++i);
|
|
if (i < AZT_BUF_SIZ) {
|
|
int offs = (i * 4 + (CURRENT->sector & 3)) * 512;
|
|
int nr_sectors = 4 - (CURRENT->sector & 3);
|
|
if (azt_buf_out != i) {
|
|
azt_buf_out = i;
|
|
if (azt_buf_bn[i] != bn) {
|
|
azt_buf_out = -1;
|
|
continue;
|
|
}
|
|
}
|
|
if (nr_sectors > CURRENT->nr_sectors)
|
|
nr_sectors = CURRENT->nr_sectors;
|
|
memcpy(CURRENT->buffer, azt_buf + offs,
|
|
nr_sectors * 512);
|
|
CURRENT->nr_sectors -= nr_sectors;
|
|
CURRENT->sector += nr_sectors;
|
|
CURRENT->buffer += nr_sectors * 512;
|
|
} else {
|
|
azt_buf_out = -1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void do_aztcd_request(request_queue_t * q)
|
|
{
|
|
#ifdef AZT_TEST
|
|
printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT->sector,
|
|
CURRENT->nr_sectors, jiffies);
|
|
#endif
|
|
if (DiskInfo.audio) {
|
|
printk("aztcd: Error, tried to mount an Audio CD\n");
|
|
end_request(CURRENT, 0);
|
|
return;
|
|
}
|
|
azt_transfer_is_active = 1;
|
|
while (current_valid()) {
|
|
azt_transfer();
|
|
if (CURRENT->nr_sectors == 0) {
|
|
end_request(CURRENT, 1);
|
|
} else {
|
|
azt_buf_out = -1; /* Want to read a block not in buffer */
|
|
if (azt_state == AZT_S_IDLE) {
|
|
if ((!aztTocUpToDate) || aztDiskChanged) {
|
|
if (aztUpdateToc() < 0) {
|
|
while (current_valid())
|
|
end_request(CURRENT, 0);
|
|
break;
|
|
}
|
|
}
|
|
azt_state = AZT_S_START;
|
|
AztTries = 5;
|
|
SET_TIMER(azt_poll, HZ / 100);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
azt_transfer_is_active = 0;
|
|
#ifdef AZT_TEST2
|
|
printk
|
|
("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n",
|
|
azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
|
|
printk(" do_aztcd_request ends Time:%li\n", jiffies);
|
|
#endif
|
|
}
|
|
|
|
|
|
static void azt_invalidate_buffers(void)
|
|
{
|
|
int i;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: executing azt_invalidate_buffers\n");
|
|
#endif
|
|
for (i = 0; i < AZT_BUF_SIZ; ++i)
|
|
azt_buf_bn[i] = -1;
|
|
azt_buf_out = -1;
|
|
}
|
|
|
|
/*
|
|
* Open the device special file. Check that a disk is in.
|
|
*/
|
|
static int aztcd_open(struct inode *ip, struct file *fp)
|
|
{
|
|
int st;
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: starting aztcd_open\n");
|
|
#endif
|
|
|
|
if (aztPresent == 0)
|
|
return -ENXIO; /* no hardware */
|
|
|
|
if (!azt_open_count && azt_state == AZT_S_IDLE) {
|
|
azt_invalidate_buffers();
|
|
|
|
st = getAztStatus(); /* check drive status */
|
|
if (st == -1)
|
|
goto err_out; /* drive doesn't respond */
|
|
|
|
if (st & AST_DOOR_OPEN) { /* close door, then get the status again. */
|
|
printk("aztcd: Door Open?\n");
|
|
aztCloseDoor();
|
|
st = getAztStatus();
|
|
}
|
|
|
|
if ((st & AST_NOT_READY) || (st & AST_DSK_CHG)) { /*no disk in drive or changed */
|
|
printk
|
|
("aztcd: Disk Changed or No Disk in Drive?\n");
|
|
aztTocUpToDate = 0;
|
|
}
|
|
if (aztUpdateToc())
|
|
goto err_out;
|
|
|
|
}
|
|
++azt_open_count;
|
|
aztLockDoor();
|
|
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: exiting aztcd_open\n");
|
|
#endif
|
|
return 0;
|
|
|
|
err_out:
|
|
return -EIO;
|
|
}
|
|
|
|
|
|
/*
|
|
* On close, we flush all azt blocks from the buffer cache.
|
|
*/
|
|
static int aztcd_release(struct inode *inode, struct file *file)
|
|
{
|
|
#ifdef AZT_DEBUG
|
|
printk("aztcd: executing aztcd_release\n");
|
|
printk("inode: %p, device: %s file: %p\n", inode,
|
|
inode->i_bdev->bd_disk->disk_name, file);
|
|
#endif
|
|
if (!--azt_open_count) {
|
|
azt_invalidate_buffers();
|
|
aztUnlockDoor();
|
|
if (azt_auto_eject)
|
|
aztSendCmd(ACMD_EJECT);
|
|
CLEAR_TIMER;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct gendisk *azt_disk;
|
|
|
|
/*
|
|
* Test for presence of drive and initialize it. Called at boot time.
|
|
*/
|
|
|
|
static int __init aztcd_init(void)
|
|
{
|
|
long int count, max_count;
|
|
unsigned char result[50];
|
|
int st;
|
|
void* status = NULL;
|
|
int i = 0;
|
|
int ret = 0;
|
|
|
|
if (azt_port == 0) {
|
|
printk(KERN_INFO "aztcd: no Aztech CD-ROM Initialization");
|
|
return -EIO;
|
|
}
|
|
|
|
printk(KERN_INFO "aztcd: AZTECH, ORCHID, OKANO, WEARNES, TXC, CyDROM "
|
|
"CD-ROM Driver\n");
|
|
printk(KERN_INFO "aztcd: (C) 1994-98 W.Zimmermann\n");
|
|
if (azt_port == -1) {
|
|
printk
|
|
("aztcd: DriverVersion=%s For IDE/ATAPI-drives use ide-cd.c\n",
|
|
AZT_VERSION);
|
|
} else
|
|
printk
|
|
("aztcd: DriverVersion=%s BaseAddress=0x%x For IDE/ATAPI-drives use ide-cd.c\n",
|
|
AZT_VERSION, azt_port);
|
|
printk(KERN_INFO "aztcd: If you have problems, read /usr/src/linux/"
|
|
"Documentation/cdrom/aztcd\n");
|
|
|
|
|
|
#ifdef AZT_SW32 /*CDROM connected to Soundwave32 card */
|
|
if ((0xFF00 & inw(AZT_SW32_ID_REG)) != 0x4500) {
|
|
printk
|
|
("aztcd: no Soundwave32 card detected at base:%x init:%x config:%x id:%x\n",
|
|
AZT_SW32_BASE_ADDR, AZT_SW32_INIT,
|
|
AZT_SW32_CONFIG_REG, AZT_SW32_ID_REG);
|
|
return -EIO;
|
|
} else {
|
|
printk(KERN_INFO
|
|
"aztcd: Soundwave32 card detected at %x Version %x\n",
|
|
AZT_SW32_BASE_ADDR, inw(AZT_SW32_ID_REG));
|
|
outw(AZT_SW32_INIT, AZT_SW32_CONFIG_REG);
|
|
for (count = 0; count < 10000; count++); /*delay a bit */
|
|
}
|
|
#endif
|
|
|
|
/* check for presence of drive */
|
|
|
|
if (azt_port == -1) { /* autoprobing for proprietary interface */
|
|
for (i = 0; (azt_port_auto[i] != 0) && (i < 16); i++) {
|
|
azt_port = azt_port_auto[i];
|
|
printk(KERN_INFO "aztcd: Autoprobing BaseAddress=0x%x"
|
|
"\n", azt_port);
|
|
/*proprietary interfaces need 4 bytes */
|
|
if (!request_region(azt_port, 4, "aztcd")) {
|
|
continue;
|
|
}
|
|
outb(POLLED, MODE_PORT);
|
|
inb(CMD_PORT);
|
|
inb(CMD_PORT);
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
|
|
|
|
aztTimeOutCount = 0;
|
|
do {
|
|
aztIndatum = inb(STATUS_PORT);
|
|
aztTimeOutCount++;
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
|
break;
|
|
} while (aztIndatum & AFL_STATUS);
|
|
if (inb(DATA_PORT) == AFL_OP_OK) { /* OK drive found */
|
|
break;
|
|
}
|
|
else { /* Drive not found on this port - try next one */
|
|
release_region(azt_port, 4);
|
|
}
|
|
}
|
|
if ((azt_port_auto[i] == 0) || (i == 16)) {
|
|
printk(KERN_INFO "aztcd: no AZTECH CD-ROM drive found\n");
|
|
return -EIO;
|
|
}
|
|
} else { /* no autoprobing */
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
|
status = request_region(azt_port, 8, "aztcd"); /*IDE-interfaces need 8 bytes */
|
|
else
|
|
status = request_region(azt_port, 4, "aztcd"); /*proprietary interfaces need 4 bytes */
|
|
if (!status) {
|
|
printk(KERN_WARNING "aztcd: conflict, I/O port (%X) "
|
|
"already used\n", azt_port);
|
|
return -EIO;
|
|
}
|
|
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
|
SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
|
|
|
|
outb(POLLED, MODE_PORT);
|
|
inb(CMD_PORT);
|
|
inb(CMD_PORT);
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
|
|
|
|
aztTimeOutCount = 0;
|
|
do {
|
|
aztIndatum = inb(STATUS_PORT);
|
|
aztTimeOutCount++;
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
|
break;
|
|
} while (aztIndatum & AFL_STATUS);
|
|
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? If not, reset and try again */
|
|
#ifndef MODULE
|
|
if (azt_cont != 0x79) {
|
|
printk(KERN_WARNING "aztcd: no AZTECH CD-ROM "
|
|
"drive found-Try boot parameter aztcd="
|
|
"<BaseAddress>,0x79\n");
|
|
ret = -EIO;
|
|
goto err_out;
|
|
}
|
|
#else
|
|
if (0) {
|
|
}
|
|
#endif
|
|
else {
|
|
printk(KERN_INFO "aztcd: drive reset - "
|
|
"please wait\n");
|
|
for (count = 0; count < 50; count++) {
|
|
inb(STATUS_PORT); /*removing all data from earlier tries */
|
|
inb(DATA_PORT);
|
|
}
|
|
outb(POLLED, MODE_PORT);
|
|
inb(CMD_PORT);
|
|
inb(CMD_PORT);
|
|
getAztStatus(); /*trap errors */
|
|
outb(ACMD_SOFT_RESET, CMD_PORT); /*send reset */
|
|
STEN_LOW;
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? */
|
|
printk(KERN_WARNING "aztcd: no AZTECH "
|
|
"CD-ROM drive found\n");
|
|
ret = -EIO;
|
|
goto err_out;
|
|
}
|
|
|
|
for (count = 0; count < AZT_TIMEOUT;
|
|
count++)
|
|
barrier(); /* Stop gcc 2.96 being smart */
|
|
/* use udelay(), damnit -- AV */
|
|
|
|
if ((st = getAztStatus()) == -1) {
|
|
printk(KERN_WARNING "aztcd: Drive Status"
|
|
" Error Status=%x\n", st);
|
|
ret = -EIO;
|
|
goto err_out;
|
|
}
|
|
#ifdef AZT_DEBUG
|
|
printk(KERN_DEBUG "aztcd: Status = %x\n", st);
|
|
#endif
|
|
outb(POLLED, MODE_PORT);
|
|
inb(CMD_PORT);
|
|
inb(CMD_PORT);
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*GetVersion */
|
|
STEN_LOW;
|
|
OP_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
azt_init_end = 1;
|
|
STEN_LOW;
|
|
result[0] = inb(DATA_PORT); /*reading in a null byte??? */
|
|
for (count = 1; count < 50; count++) { /*Reading version string */
|
|
aztTimeOutCount = 0; /*here we must implement STEN_LOW differently */
|
|
do {
|
|
aztIndatum = inb(STATUS_PORT); /*because we want to exit by timeout */
|
|
aztTimeOutCount++;
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
|
break;
|
|
} while (aztIndatum & AFL_STATUS);
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
|
break; /*all chars read? */
|
|
result[count] = inb(DATA_PORT);
|
|
}
|
|
if (count > 30)
|
|
max_count = 30; /*print max.30 chars of the version string */
|
|
else
|
|
max_count = count;
|
|
printk(KERN_INFO "aztcd: FirmwareVersion=");
|
|
for (count = 1; count < max_count; count++)
|
|
printk("%c", result[count]);
|
|
printk("<<>> ");
|
|
|
|
if ((result[1] == 'A') && (result[2] == 'Z') && (result[3] == 'T')) {
|
|
printk("AZTECH drive detected\n");
|
|
/*AZTECH*/}
|
|
else if ((result[2] == 'C') && (result[3] == 'D')
|
|
&& (result[4] == 'D')) {
|
|
printk("ORCHID or WEARNES drive detected\n"); /*ORCHID or WEARNES */
|
|
} else if ((result[1] == 0x03) && (result[2] == '5')) {
|
|
printk("TXC or CyCDROM drive detected\n"); /*Conrad TXC, CyCDROM */
|
|
} else { /*OTHERS or none */
|
|
printk("\nunknown drive or firmware version detected\n");
|
|
printk
|
|
("aztcd may not run stable, if you want to try anyhow,\n");
|
|
printk("boot with: aztcd=<BaseAddress>,0x79\n");
|
|
if ((azt_cont != 0x79)) {
|
|
printk("aztcd: FirmwareVersion=");
|
|
for (count = 1; count < 5; count++)
|
|
printk("%c", result[count]);
|
|
printk("<<>> ");
|
|
printk("Aborted\n");
|
|
ret = -EIO;
|
|
goto err_out;
|
|
}
|
|
}
|
|
azt_disk = alloc_disk(1);
|
|
if (!azt_disk)
|
|
goto err_out;
|
|
|
|
if (register_blkdev(MAJOR_NR, "aztcd")) {
|
|
ret = -EIO;
|
|
goto err_out2;
|
|
}
|
|
|
|
azt_queue = blk_init_queue(do_aztcd_request, &aztSpin);
|
|
if (!azt_queue) {
|
|
ret = -ENOMEM;
|
|
goto err_out3;
|
|
}
|
|
|
|
blk_queue_hardsect_size(azt_queue, 2048);
|
|
azt_disk->major = MAJOR_NR;
|
|
azt_disk->first_minor = 0;
|
|
azt_disk->fops = &azt_fops;
|
|
sprintf(azt_disk->disk_name, "aztcd");
|
|
sprintf(azt_disk->devfs_name, "aztcd");
|
|
azt_disk->queue = azt_queue;
|
|
add_disk(azt_disk);
|
|
azt_invalidate_buffers();
|
|
aztPresent = 1;
|
|
aztCloseDoor();
|
|
return 0;
|
|
err_out3:
|
|
unregister_blkdev(MAJOR_NR, "aztcd");
|
|
err_out2:
|
|
put_disk(azt_disk);
|
|
err_out:
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
|
|
SWITCH_IDE_MASTER;
|
|
release_region(azt_port, 8); /*IDE-interface */
|
|
} else
|
|
release_region(azt_port, 4); /*proprietary interface */
|
|
return ret;
|
|
|
|
}
|
|
|
|
static void __exit aztcd_exit(void)
|
|
{
|
|
del_gendisk(azt_disk);
|
|
put_disk(azt_disk);
|
|
if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL)) {
|
|
printk("What's that: can't unregister aztcd\n");
|
|
return;
|
|
}
|
|
blk_cleanup_queue(azt_queue);
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
|
|
SWITCH_IDE_MASTER;
|
|
release_region(azt_port, 8); /*IDE-interface */
|
|
} else
|
|
release_region(azt_port, 4); /*proprietary interface */
|
|
printk(KERN_INFO "aztcd module released.\n");
|
|
}
|
|
|
|
module_init(aztcd_init);
|
|
module_exit(aztcd_exit);
|
|
|
|
/*##########################################################################
|
|
Aztcd State Machine: Controls Drive Operating State
|
|
##########################################################################
|
|
*/
|
|
static void azt_poll(void)
|
|
{
|
|
int st = 0;
|
|
int loop_ctl = 1;
|
|
int skip = 0;
|
|
|
|
if (azt_error) {
|
|
if (aztSendCmd(ACMD_GET_ERROR))
|
|
RETURN("azt_poll 1");
|
|
STEN_LOW;
|
|
azt_error = inb(DATA_PORT) & 0xFF;
|
|
printk("aztcd: I/O error 0x%02x\n", azt_error);
|
|
azt_invalidate_buffers();
|
|
#ifdef WARN_IF_READ_FAILURE
|
|
if (AztTries == 5)
|
|
printk
|
|
("aztcd: Read of Block %d Failed - Maybe Audio Disk?\n",
|
|
azt_next_bn);
|
|
#endif
|
|
if (!AztTries--) {
|
|
printk
|
|
("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n",
|
|
azt_next_bn);
|
|
if (azt_transfer_is_active) {
|
|
AztTries = 0;
|
|
loop_ctl = 0;
|
|
}
|
|
if (current_valid())
|
|
end_request(CURRENT, 0);
|
|
AztTries = 5;
|
|
}
|
|
azt_error = 0;
|
|
azt_state = AZT_S_STOP;
|
|
}
|
|
|
|
while (loop_ctl) {
|
|
loop_ctl = 0; /* each case must flip this back to 1 if we want
|
|
to come back up here */
|
|
switch (azt_state) {
|
|
|
|
case AZT_S_IDLE:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_IDLE\n");
|
|
}
|
|
#endif
|
|
return;
|
|
|
|
case AZT_S_START:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_START\n");
|
|
}
|
|
#endif
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
|
RETURN("azt_poll 2"); /*result will be checked by aztStatus() */
|
|
azt_state =
|
|
azt_mode == 1 ? AZT_S_READ : AZT_S_MODE;
|
|
AztTimeout = 3000;
|
|
break;
|
|
|
|
case AZT_S_MODE:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_MODE\n");
|
|
}
|
|
#endif
|
|
if (!skip) {
|
|
if ((st = aztStatus()) != -1) {
|
|
if ((st & AST_DSK_CHG)
|
|
|| (st & AST_NOT_READY)) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
azt_invalidate_buffers();
|
|
end_request(CURRENT, 0);
|
|
printk
|
|
("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
|
|
}
|
|
} else
|
|
break;
|
|
}
|
|
skip = 0;
|
|
|
|
if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
printk
|
|
("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
|
|
end_request(CURRENT, 0);
|
|
printk((st & AST_DOOR_OPEN) ?
|
|
"aztcd: door open\n" :
|
|
"aztcd: disk removed\n");
|
|
if (azt_transfer_is_active) {
|
|
azt_state = AZT_S_START;
|
|
loop_ctl = 1; /* goto immediately */
|
|
break;
|
|
}
|
|
azt_state = AZT_S_IDLE;
|
|
while (current_valid())
|
|
end_request(CURRENT, 0);
|
|
return;
|
|
}
|
|
|
|
/* if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
|
|
outb(0x01, DATA_PORT);
|
|
PA_OK;
|
|
STEN_LOW;
|
|
*/
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
|
RETURN("azt_poll 4");
|
|
STEN_LOW;
|
|
azt_mode = 1;
|
|
azt_state = AZT_S_READ;
|
|
AztTimeout = 3000;
|
|
|
|
break;
|
|
|
|
|
|
case AZT_S_READ:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_READ\n");
|
|
}
|
|
#endif
|
|
if (!skip) {
|
|
if ((st = aztStatus()) != -1) {
|
|
if ((st & AST_DSK_CHG)
|
|
|| (st & AST_NOT_READY)) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
azt_invalidate_buffers();
|
|
printk
|
|
("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
|
|
end_request(CURRENT, 0);
|
|
}
|
|
} else
|
|
break;
|
|
}
|
|
|
|
skip = 0;
|
|
if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
printk((st & AST_DOOR_OPEN) ?
|
|
"aztcd: door open\n" :
|
|
"aztcd: disk removed\n");
|
|
if (azt_transfer_is_active) {
|
|
azt_state = AZT_S_START;
|
|
loop_ctl = 1;
|
|
break;
|
|
}
|
|
azt_state = AZT_S_IDLE;
|
|
while (current_valid())
|
|
end_request(CURRENT, 0);
|
|
return;
|
|
}
|
|
|
|
if (current_valid()) {
|
|
struct azt_Play_msf msf;
|
|
int i;
|
|
azt_next_bn = CURRENT->sector / 4;
|
|
azt_hsg2msf(azt_next_bn, &msf.start);
|
|
i = 0;
|
|
/* find out in which track we are */
|
|
while (azt_msf2hsg(&msf.start) >
|
|
azt_msf2hsg(&Toc[++i].trackTime)) {
|
|
};
|
|
if (azt_msf2hsg(&msf.start) <
|
|
azt_msf2hsg(&Toc[i].trackTime) -
|
|
AZT_BUF_SIZ) {
|
|
azt_read_count = AZT_BUF_SIZ; /*fast, because we read ahead */
|
|
/*azt_read_count=CURRENT->nr_sectors; slow, no read ahead */
|
|
} else /* don't read beyond end of track */
|
|
#if AZT_MULTISESSION
|
|
{
|
|
azt_read_count =
|
|
(azt_msf2hsg(&Toc[i].trackTime)
|
|
/ 4) * 4 -
|
|
azt_msf2hsg(&msf.start);
|
|
if (azt_read_count < 0)
|
|
azt_read_count = 0;
|
|
if (azt_read_count > AZT_BUF_SIZ)
|
|
azt_read_count =
|
|
AZT_BUF_SIZ;
|
|
printk
|
|
("aztcd: warning - trying to read beyond end of track\n");
|
|
/* printk("%i %i %li %li\n",i,azt_read_count,azt_msf2hsg(&msf.start),azt_msf2hsg(&Toc[i].trackTime));
|
|
*/ }
|
|
#else
|
|
{
|
|
azt_read_count = AZT_BUF_SIZ;
|
|
}
|
|
#endif
|
|
msf.end.min = 0;
|
|
msf.end.sec = 0;
|
|
msf.end.frame = azt_read_count; /*Mitsumi here reads 0xffffff sectors */
|
|
#ifdef AZT_TEST3
|
|
printk
|
|
("---reading msf-address %x:%x:%x %x:%x:%x\n",
|
|
msf.start.min, msf.start.sec,
|
|
msf.start.frame, msf.end.min,
|
|
msf.end.sec, msf.end.frame);
|
|
printk
|
|
("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n",
|
|
azt_next_bn, azt_buf_in, azt_buf_out,
|
|
azt_buf_bn[azt_buf_in]);
|
|
#endif
|
|
if (azt_read_mode == AZT_MODE_2) {
|
|
sendAztCmd(ACMD_PLAY_READ_RAW, &msf); /*XA disks in raw mode */
|
|
} else {
|
|
sendAztCmd(ACMD_PLAY_READ, &msf); /*others in cooked mode */
|
|
}
|
|
azt_state = AZT_S_DATA;
|
|
AztTimeout = READ_TIMEOUT;
|
|
} else {
|
|
azt_state = AZT_S_STOP;
|
|
loop_ctl = 1;
|
|
break;
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
case AZT_S_DATA:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_DATA\n");
|
|
}
|
|
#endif
|
|
|
|
st = inb(STATUS_PORT) & AFL_STATUSorDATA;
|
|
|
|
switch (st) {
|
|
|
|
case AFL_DATA:
|
|
#ifdef AZT_TEST3
|
|
if (st != azt_st_old) {
|
|
azt_st_old = st;
|
|
printk("---AFL_DATA st:%x\n", st);
|
|
}
|
|
#endif
|
|
if (!AztTries--) {
|
|
printk
|
|
("aztcd: Read of Block %d Failed, Maybe Audio Disk ? Giving up\n",
|
|
azt_next_bn);
|
|
if (azt_transfer_is_active) {
|
|
AztTries = 0;
|
|
break;
|
|
}
|
|
if (current_valid())
|
|
end_request(CURRENT, 0);
|
|
AztTries = 5;
|
|
}
|
|
azt_state = AZT_S_START;
|
|
AztTimeout = READ_TIMEOUT;
|
|
loop_ctl = 1;
|
|
break;
|
|
|
|
case AFL_STATUSorDATA:
|
|
#ifdef AZT_TEST3
|
|
if (st != azt_st_old) {
|
|
azt_st_old = st;
|
|
printk
|
|
("---AFL_STATUSorDATA st:%x\n",
|
|
st);
|
|
}
|
|
#endif
|
|
break;
|
|
|
|
default:
|
|
#ifdef AZT_TEST3
|
|
if (st != azt_st_old) {
|
|
azt_st_old = st;
|
|
printk("---default: st:%x\n", st);
|
|
}
|
|
#endif
|
|
AztTries = 5;
|
|
if (!current_valid() && azt_buf_in == azt_buf_out) {
|
|
azt_state = AZT_S_STOP;
|
|
loop_ctl = 1;
|
|
break;
|
|
}
|
|
if (azt_read_count <= 0)
|
|
printk
|
|
("aztcd: warning - try to read 0 frames\n");
|
|
while (azt_read_count) { /*??? fast read ahead loop */
|
|
azt_buf_bn[azt_buf_in] = -1;
|
|
DTEN_LOW; /*??? unsolved problem, very
|
|
seldom we get timeouts
|
|
here, don't now the real
|
|
reason. With my drive this
|
|
sometimes also happens with
|
|
Aztech's original driver under
|
|
DOS. Is it a hardware bug?
|
|
I tried to recover from such
|
|
situations here. Zimmermann */
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
|
printk
|
|
("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n",
|
|
azt_read_count,
|
|
CURRENT->nr_sectors,
|
|
azt_buf_in);
|
|
printk
|
|
("azt_transfer_is_active:%x\n",
|
|
azt_transfer_is_active);
|
|
azt_read_count = 0;
|
|
azt_state = AZT_S_STOP;
|
|
loop_ctl = 1;
|
|
end_request(CURRENT, 1); /*should we have here (1) or (0)? */
|
|
} else {
|
|
if (azt_read_mode ==
|
|
AZT_MODE_2) {
|
|
insb(DATA_PORT,
|
|
azt_buf +
|
|
CD_FRAMESIZE_RAW
|
|
* azt_buf_in,
|
|
CD_FRAMESIZE_RAW);
|
|
} else {
|
|
insb(DATA_PORT,
|
|
azt_buf +
|
|
CD_FRAMESIZE *
|
|
azt_buf_in,
|
|
CD_FRAMESIZE);
|
|
}
|
|
azt_read_count--;
|
|
#ifdef AZT_TEST3
|
|
printk
|
|
("AZT_S_DATA; ---I've read data- read_count: %d\n",
|
|
azt_read_count);
|
|
printk
|
|
("azt_next_bn:%d azt_buf_in:%d azt_buf_out:%d azt_buf_bn:%d\n",
|
|
azt_next_bn,
|
|
azt_buf_in,
|
|
azt_buf_out,
|
|
azt_buf_bn
|
|
[azt_buf_in]);
|
|
#endif
|
|
azt_buf_bn[azt_buf_in] =
|
|
azt_next_bn++;
|
|
if (azt_buf_out == -1)
|
|
azt_buf_out =
|
|
azt_buf_in;
|
|
azt_buf_in =
|
|
azt_buf_in + 1 ==
|
|
AZT_BUF_SIZ ? 0 :
|
|
azt_buf_in + 1;
|
|
}
|
|
}
|
|
if (!azt_transfer_is_active) {
|
|
while (current_valid()) {
|
|
azt_transfer();
|
|
if (CURRENT->nr_sectors ==
|
|
0)
|
|
end_request(CURRENT, 1);
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (current_valid()
|
|
&& (CURRENT->sector / 4 < azt_next_bn
|
|
|| CURRENT->sector / 4 >
|
|
azt_next_bn + AZT_BUF_SIZ)) {
|
|
azt_state = AZT_S_STOP;
|
|
loop_ctl = 1;
|
|
break;
|
|
}
|
|
AztTimeout = READ_TIMEOUT;
|
|
if (azt_read_count == 0) {
|
|
azt_state = AZT_S_STOP;
|
|
loop_ctl = 1;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
|
|
case AZT_S_STOP:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_STOP\n");
|
|
}
|
|
#endif
|
|
if (azt_read_count != 0)
|
|
printk("aztcd: discard data=%x frames\n",
|
|
azt_read_count);
|
|
while (azt_read_count != 0) {
|
|
int i;
|
|
if (!(inb(STATUS_PORT) & AFL_DATA)) {
|
|
if (azt_read_mode == AZT_MODE_2)
|
|
for (i = 0;
|
|
i < CD_FRAMESIZE_RAW;
|
|
i++)
|
|
inb(DATA_PORT);
|
|
else
|
|
for (i = 0;
|
|
i < CD_FRAMESIZE; i++)
|
|
inb(DATA_PORT);
|
|
}
|
|
azt_read_count--;
|
|
}
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
|
RETURN("azt_poll 5");
|
|
azt_state = AZT_S_STOPPING;
|
|
AztTimeout = 1000;
|
|
break;
|
|
|
|
case AZT_S_STOPPING:
|
|
#ifdef AZT_TEST3
|
|
if (azt_state != azt_state_old) {
|
|
azt_state_old = azt_state;
|
|
printk("AZT_S_STOPPING\n");
|
|
}
|
|
#endif
|
|
|
|
if ((st = aztStatus()) == -1 && AztTimeout)
|
|
break;
|
|
|
|
if ((st != -1)
|
|
&& ((st & AST_DSK_CHG)
|
|
|| (st & AST_NOT_READY))) {
|
|
aztDiskChanged = 1;
|
|
aztTocUpToDate = 0;
|
|
azt_invalidate_buffers();
|
|
printk
|
|
("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
|
|
end_request(CURRENT, 0);
|
|
}
|
|
|
|
#ifdef AZT_TEST3
|
|
printk("CURRENT_VALID %d azt_mode %d\n",
|
|
current_valid(), azt_mode);
|
|
#endif
|
|
|
|
if (current_valid()) {
|
|
if (st != -1) {
|
|
if (azt_mode == 1) {
|
|
azt_state = AZT_S_READ;
|
|
loop_ctl = 1;
|
|
skip = 1;
|
|
break;
|
|
} else {
|
|
azt_state = AZT_S_MODE;
|
|
loop_ctl = 1;
|
|
skip = 1;
|
|
break;
|
|
}
|
|
} else {
|
|
azt_state = AZT_S_START;
|
|
AztTimeout = 1;
|
|
}
|
|
} else {
|
|
azt_state = AZT_S_IDLE;
|
|
return;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
printk("aztcd: invalid state %d\n", azt_state);
|
|
return;
|
|
} /* case */
|
|
} /* while */
|
|
|
|
|
|
if (!AztTimeout--) {
|
|
printk("aztcd: timeout in state %d\n", azt_state);
|
|
azt_state = AZT_S_STOP;
|
|
if (aztSendCmd(ACMD_STOP))
|
|
RETURN("azt_poll 6");
|
|
STEN_LOW_WAIT;
|
|
};
|
|
|
|
SET_TIMER(azt_poll, HZ / 100);
|
|
}
|
|
|
|
|
|
/*###########################################################################
|
|
* Miscellaneous support functions
|
|
###########################################################################
|
|
*/
|
|
static void azt_hsg2msf(long hsg, struct msf *msf)
|
|
{
|
|
hsg += 150;
|
|
msf->min = hsg / 4500;
|
|
hsg %= 4500;
|
|
msf->sec = hsg / 75;
|
|
msf->frame = hsg % 75;
|
|
#ifdef AZT_DEBUG
|
|
if (msf->min >= 70)
|
|
printk("aztcd: Error hsg2msf address Minutes\n");
|
|
if (msf->sec >= 60)
|
|
printk("aztcd: Error hsg2msf address Seconds\n");
|
|
if (msf->frame >= 75)
|
|
printk("aztcd: Error hsg2msf address Frames\n");
|
|
#endif
|
|
azt_bin2bcd(&msf->min); /* convert to BCD */
|
|
azt_bin2bcd(&msf->sec);
|
|
azt_bin2bcd(&msf->frame);
|
|
}
|
|
|
|
static long azt_msf2hsg(struct msf *mp)
|
|
{
|
|
return azt_bcd2bin(mp->frame) + azt_bcd2bin(mp->sec) * 75
|
|
+ azt_bcd2bin(mp->min) * 4500 - CD_MSF_OFFSET;
|
|
}
|
|
|
|
static void azt_bin2bcd(unsigned char *p)
|
|
{
|
|
int u, t;
|
|
|
|
u = *p % 10;
|
|
t = *p / 10;
|
|
*p = u | (t << 4);
|
|
}
|
|
|
|
static int azt_bcd2bin(unsigned char bcd)
|
|
{
|
|
return (bcd >> 4) * 10 + (bcd & 0xF);
|
|
}
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS_BLOCKDEV_MAJOR(AZTECH_CDROM_MAJOR);
|