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phoenix |
#define AZT_VERSION "2.60"
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/* $Id: aztcd.c,v 1.1.1.1 2004-04-15 02:18:50 phoenix Exp $
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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 /usr/src/linux/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/version.h>
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#define MAJOR_NR AZTECH_CDROM_MAJOR
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#include <linux/blk.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/devfs_fs_kernel.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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static int aztcd_blocksizes[1] = { 2048 };
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/*###########################################################################
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Defines
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###########################################################################
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*/
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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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#define CURRENT_VALID \
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(!QUEUE_EMPTY && MAJOR(CURRENT -> rq_dev) == MAJOR_NR && CURRENT -> cmd == READ \
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&& CURRENT -> sector != -1)
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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_PARM(azt_port, "i");
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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 struct timer_list delay_timer;
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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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|
|
| 304 |
|
|
static int aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 305 |
|
|
static char aztDiskChanged = 1;
|
| 306 |
|
|
static char aztTocUpToDate = 0;
|
| 307 |
|
|
|
| 308 |
|
|
static unsigned char aztIndatum;
|
| 309 |
|
|
static unsigned long aztTimeOutCount;
|
| 310 |
|
|
static int aztCmd = 0;
|
| 311 |
|
|
|
| 312 |
|
|
/*###########################################################################
|
| 313 |
|
|
Function Prototypes
|
| 314 |
|
|
###########################################################################
|
| 315 |
|
|
*/
|
| 316 |
|
|
/* CDROM Drive Low Level I/O Functions */
|
| 317 |
|
|
void op_ok(void);
|
| 318 |
|
|
void pa_ok(void);
|
| 319 |
|
|
void sten_low(void);
|
| 320 |
|
|
void dten_low(void);
|
| 321 |
|
|
void statusAzt(void);
|
| 322 |
|
|
static void aztStatTimer(void);
|
| 323 |
|
|
|
| 324 |
|
|
/* CDROM Drive Command Functions */
|
| 325 |
|
|
static int aztSendCmd(int cmd);
|
| 326 |
|
|
static int sendAztCmd(int cmd, struct azt_Play_msf *params);
|
| 327 |
|
|
static int aztSeek(struct azt_Play_msf *params);
|
| 328 |
|
|
static int aztSetDiskType(int type);
|
| 329 |
|
|
static int aztStatus(void);
|
| 330 |
|
|
static int getAztStatus(void);
|
| 331 |
|
|
static int aztPlay(struct azt_Play_msf *arg);
|
| 332 |
|
|
static void aztCloseDoor(void);
|
| 333 |
|
|
static void aztLockDoor(void);
|
| 334 |
|
|
static void aztUnlockDoor(void);
|
| 335 |
|
|
static int aztGetValue(unsigned char *result);
|
| 336 |
|
|
static int aztGetQChannelInfo(struct azt_Toc *qp);
|
| 337 |
|
|
static int aztUpdateToc(void);
|
| 338 |
|
|
static int aztGetDiskInfo(void);
|
| 339 |
|
|
#if AZT_MULTISESSION
|
| 340 |
|
|
static int aztGetMultiDiskInfo(void);
|
| 341 |
|
|
#endif
|
| 342 |
|
|
static int aztGetToc(int multi);
|
| 343 |
|
|
|
| 344 |
|
|
/* Kernel Interface Functions */
|
| 345 |
|
|
static int check_aztcd_media_change(kdev_t full_dev);
|
| 346 |
|
|
static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
|
| 347 |
|
|
unsigned long arg);
|
| 348 |
|
|
static void azt_transfer(void);
|
| 349 |
|
|
static void do_aztcd_request(request_queue_t *);
|
| 350 |
|
|
static void azt_invalidate_buffers(void);
|
| 351 |
|
|
int aztcd_open(struct inode *ip, struct file *fp);
|
| 352 |
|
|
|
| 353 |
|
|
static int aztcd_release(struct inode *inode, struct file *file);
|
| 354 |
|
|
|
| 355 |
|
|
int aztcd_init(void);
|
| 356 |
|
|
|
| 357 |
|
|
static struct block_device_operations azt_fops = {
|
| 358 |
|
|
owner:THIS_MODULE,
|
| 359 |
|
|
open:aztcd_open,
|
| 360 |
|
|
release:aztcd_release,
|
| 361 |
|
|
ioctl:aztcd_ioctl,
|
| 362 |
|
|
check_media_change:check_aztcd_media_change,
|
| 363 |
|
|
};
|
| 364 |
|
|
|
| 365 |
|
|
/* Aztcd State Machine: Controls Drive Operating State */
|
| 366 |
|
|
static void azt_poll(void);
|
| 367 |
|
|
|
| 368 |
|
|
/* Miscellaneous support functions */
|
| 369 |
|
|
static void azt_hsg2msf(long hsg, struct msf *msf);
|
| 370 |
|
|
static long azt_msf2hsg(struct msf *mp);
|
| 371 |
|
|
static void azt_bin2bcd(unsigned char *p);
|
| 372 |
|
|
static int azt_bcd2bin(unsigned char bcd);
|
| 373 |
|
|
|
| 374 |
|
|
/*##########################################################################
|
| 375 |
|
|
CDROM Drive Low Level I/O Functions
|
| 376 |
|
|
##########################################################################
|
| 377 |
|
|
*/
|
| 378 |
|
|
/* Macros for the drive hardware interface handshake, these macros use
|
| 379 |
|
|
busy waiting */
|
| 380 |
|
|
/* Wait for OP_OK = drive answers with AFL_OP_OK after receiving a command*/
|
| 381 |
|
|
# define OP_OK op_ok()
|
| 382 |
|
|
void op_ok(void)
|
| 383 |
|
|
{
|
| 384 |
|
|
aztTimeOutCount = 0;
|
| 385 |
|
|
do {
|
| 386 |
|
|
aztIndatum = inb(DATA_PORT);
|
| 387 |
|
|
aztTimeOutCount++;
|
| 388 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 389 |
|
|
printk("aztcd: Error Wait OP_OK\n");
|
| 390 |
|
|
break;
|
| 391 |
|
|
}
|
| 392 |
|
|
} while (aztIndatum != AFL_OP_OK);
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
/* Wait for PA_OK = drive answers with AFL_PA_OK after receiving parameters*/
|
| 396 |
|
|
# define PA_OK pa_ok()
|
| 397 |
|
|
void pa_ok(void)
|
| 398 |
|
|
{
|
| 399 |
|
|
aztTimeOutCount = 0;
|
| 400 |
|
|
do {
|
| 401 |
|
|
aztIndatum = inb(DATA_PORT);
|
| 402 |
|
|
aztTimeOutCount++;
|
| 403 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 404 |
|
|
printk("aztcd: Error Wait PA_OK\n");
|
| 405 |
|
|
break;
|
| 406 |
|
|
}
|
| 407 |
|
|
} while (aztIndatum != AFL_PA_OK);
|
| 408 |
|
|
}
|
| 409 |
|
|
|
| 410 |
|
|
/* Wait for STEN=Low = handshake signal 'AFL_.._OK available or command executed*/
|
| 411 |
|
|
# define STEN_LOW sten_low()
|
| 412 |
|
|
void sten_low(void)
|
| 413 |
|
|
{
|
| 414 |
|
|
aztTimeOutCount = 0;
|
| 415 |
|
|
do {
|
| 416 |
|
|
aztIndatum = inb(STATUS_PORT);
|
| 417 |
|
|
aztTimeOutCount++;
|
| 418 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 419 |
|
|
if (azt_init_end)
|
| 420 |
|
|
printk
|
| 421 |
|
|
("aztcd: Error Wait STEN_LOW commands:%x\n",
|
| 422 |
|
|
aztCmd);
|
| 423 |
|
|
break;
|
| 424 |
|
|
}
|
| 425 |
|
|
} while (aztIndatum & AFL_STATUS);
|
| 426 |
|
|
}
|
| 427 |
|
|
|
| 428 |
|
|
/* Wait for DTEN=Low = handshake signal 'Data available'*/
|
| 429 |
|
|
# define DTEN_LOW dten_low()
|
| 430 |
|
|
void dten_low(void)
|
| 431 |
|
|
{
|
| 432 |
|
|
aztTimeOutCount = 0;
|
| 433 |
|
|
do {
|
| 434 |
|
|
aztIndatum = inb(STATUS_PORT);
|
| 435 |
|
|
aztTimeOutCount++;
|
| 436 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 437 |
|
|
printk("aztcd: Error Wait DTEN_OK\n");
|
| 438 |
|
|
break;
|
| 439 |
|
|
}
|
| 440 |
|
|
} while (aztIndatum & AFL_DATA);
|
| 441 |
|
|
}
|
| 442 |
|
|
|
| 443 |
|
|
/*
|
| 444 |
|
|
* Macro for timer wait on STEN=Low, should only be used for 'slow' commands;
|
| 445 |
|
|
* may cause kernel panic when used in the wrong place
|
| 446 |
|
|
*/
|
| 447 |
|
|
#define STEN_LOW_WAIT statusAzt()
|
| 448 |
|
|
void statusAzt(void)
|
| 449 |
|
|
{
|
| 450 |
|
|
AztTimeout = AZT_STATUS_DELAY;
|
| 451 |
|
|
SET_TIMER(aztStatTimer, HZ / 100);
|
| 452 |
|
|
sleep_on(&azt_waitq);
|
| 453 |
|
|
if (AztTimeout <= 0)
|
| 454 |
|
|
printk("aztcd: Error Wait STEN_LOW_WAIT command:%x\n",
|
| 455 |
|
|
aztCmd);
|
| 456 |
|
|
return;
|
| 457 |
|
|
}
|
| 458 |
|
|
|
| 459 |
|
|
static void aztStatTimer(void)
|
| 460 |
|
|
{
|
| 461 |
|
|
if (!(inb(STATUS_PORT) & AFL_STATUS)) {
|
| 462 |
|
|
wake_up(&azt_waitq);
|
| 463 |
|
|
return;
|
| 464 |
|
|
}
|
| 465 |
|
|
AztTimeout--;
|
| 466 |
|
|
if (AztTimeout <= 0) {
|
| 467 |
|
|
wake_up(&azt_waitq);
|
| 468 |
|
|
printk("aztcd: Error aztStatTimer: Timeout\n");
|
| 469 |
|
|
return;
|
| 470 |
|
|
}
|
| 471 |
|
|
SET_TIMER(aztStatTimer, HZ / 100);
|
| 472 |
|
|
}
|
| 473 |
|
|
|
| 474 |
|
|
/*##########################################################################
|
| 475 |
|
|
CDROM Drive Command Functions
|
| 476 |
|
|
##########################################################################
|
| 477 |
|
|
*/
|
| 478 |
|
|
/*
|
| 479 |
|
|
* Send a single command, return -1 on error, else 0
|
| 480 |
|
|
*/
|
| 481 |
|
|
static int aztSendCmd(int cmd)
|
| 482 |
|
|
{
|
| 483 |
|
|
unsigned char data;
|
| 484 |
|
|
int retry;
|
| 485 |
|
|
|
| 486 |
|
|
#ifdef AZT_DEBUG
|
| 487 |
|
|
printk("aztcd: Executing command %x\n", cmd);
|
| 488 |
|
|
#endif
|
| 489 |
|
|
|
| 490 |
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
| 491 |
|
|
SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
|
| 492 |
|
|
|
| 493 |
|
|
aztCmd = cmd;
|
| 494 |
|
|
outb(POLLED, MODE_PORT);
|
| 495 |
|
|
do {
|
| 496 |
|
|
if (inb(STATUS_PORT) & AFL_STATUS)
|
| 497 |
|
|
break;
|
| 498 |
|
|
inb(DATA_PORT); /* if status left from last command, read and */
|
| 499 |
|
|
} while (1); /* discard it */
|
| 500 |
|
|
do {
|
| 501 |
|
|
if (inb(STATUS_PORT) & AFL_DATA)
|
| 502 |
|
|
break;
|
| 503 |
|
|
inb(DATA_PORT); /* if data left from last command, read and */
|
| 504 |
|
|
} while (1); /* discard it */
|
| 505 |
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
| 506 |
|
|
outb((unsigned char) cmd, CMD_PORT);
|
| 507 |
|
|
STEN_LOW;
|
| 508 |
|
|
data = inb(DATA_PORT);
|
| 509 |
|
|
if (data == AFL_OP_OK) {
|
| 510 |
|
|
return 0;
|
| 511 |
|
|
} /*OP_OK? */
|
| 512 |
|
|
if (data == AFL_OP_ERR) {
|
| 513 |
|
|
STEN_LOW;
|
| 514 |
|
|
data = inb(DATA_PORT);
|
| 515 |
|
|
printk
|
| 516 |
|
|
("### Error 1 aztcd: aztSendCmd %x Error Code %x\n",
|
| 517 |
|
|
cmd, data);
|
| 518 |
|
|
}
|
| 519 |
|
|
}
|
| 520 |
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
| 521 |
|
|
printk("### Error 2 aztcd: aztSendCmd %x \n", cmd);
|
| 522 |
|
|
azt_error = 0xA5;
|
| 523 |
|
|
}
|
| 524 |
|
|
RETURNM("aztSendCmd", -1);
|
| 525 |
|
|
}
|
| 526 |
|
|
|
| 527 |
|
|
/*
|
| 528 |
|
|
* Send a play or read command to the drive, return -1 on error, else 0
|
| 529 |
|
|
*/
|
| 530 |
|
|
static int sendAztCmd(int cmd, struct azt_Play_msf *params)
|
| 531 |
|
|
{
|
| 532 |
|
|
unsigned char data;
|
| 533 |
|
|
int retry;
|
| 534 |
|
|
|
| 535 |
|
|
#ifdef AZT_DEBUG
|
| 536 |
|
|
printk("aztcd: play start=%02x:%02x:%02x end=%02x:%02x:%02x\n",
|
| 537 |
|
|
params->start.min, params->start.sec, params->start.frame,
|
| 538 |
|
|
params->end.min, params->end.sec, params->end.frame);
|
| 539 |
|
|
#endif
|
| 540 |
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
| 541 |
|
|
aztSendCmd(cmd);
|
| 542 |
|
|
outb(params->start.min, CMD_PORT);
|
| 543 |
|
|
outb(params->start.sec, CMD_PORT);
|
| 544 |
|
|
outb(params->start.frame, CMD_PORT);
|
| 545 |
|
|
outb(params->end.min, CMD_PORT);
|
| 546 |
|
|
outb(params->end.sec, CMD_PORT);
|
| 547 |
|
|
outb(params->end.frame, CMD_PORT);
|
| 548 |
|
|
STEN_LOW;
|
| 549 |
|
|
data = inb(DATA_PORT);
|
| 550 |
|
|
if (data == AFL_PA_OK) {
|
| 551 |
|
|
return 0;
|
| 552 |
|
|
} /*PA_OK ? */
|
| 553 |
|
|
if (data == AFL_PA_ERR) {
|
| 554 |
|
|
STEN_LOW;
|
| 555 |
|
|
data = inb(DATA_PORT);
|
| 556 |
|
|
printk
|
| 557 |
|
|
("### Error 1 aztcd: sendAztCmd %x Error Code %x\n",
|
| 558 |
|
|
cmd, data);
|
| 559 |
|
|
}
|
| 560 |
|
|
}
|
| 561 |
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
| 562 |
|
|
printk("### Error 2 aztcd: sendAztCmd %x\n ", cmd);
|
| 563 |
|
|
azt_error = 0xA5;
|
| 564 |
|
|
}
|
| 565 |
|
|
RETURNM("sendAztCmd", -1);
|
| 566 |
|
|
}
|
| 567 |
|
|
|
| 568 |
|
|
/*
|
| 569 |
|
|
* Send a seek command to the drive, return -1 on error, else 0
|
| 570 |
|
|
*/
|
| 571 |
|
|
static int aztSeek(struct azt_Play_msf *params)
|
| 572 |
|
|
{
|
| 573 |
|
|
unsigned char data;
|
| 574 |
|
|
int retry;
|
| 575 |
|
|
|
| 576 |
|
|
#ifdef AZT_DEBUG
|
| 577 |
|
|
printk("aztcd: aztSeek %02x:%02x:%02x\n",
|
| 578 |
|
|
params->start.min, params->start.sec, params->start.frame);
|
| 579 |
|
|
#endif
|
| 580 |
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
| 581 |
|
|
aztSendCmd(ACMD_SEEK);
|
| 582 |
|
|
outb(params->start.min, CMD_PORT);
|
| 583 |
|
|
outb(params->start.sec, CMD_PORT);
|
| 584 |
|
|
outb(params->start.frame, CMD_PORT);
|
| 585 |
|
|
STEN_LOW;
|
| 586 |
|
|
data = inb(DATA_PORT);
|
| 587 |
|
|
if (data == AFL_PA_OK) {
|
| 588 |
|
|
return 0;
|
| 589 |
|
|
} /*PA_OK ? */
|
| 590 |
|
|
if (data == AFL_PA_ERR) {
|
| 591 |
|
|
STEN_LOW;
|
| 592 |
|
|
data = inb(DATA_PORT);
|
| 593 |
|
|
printk("### Error 1 aztcd: aztSeek\n");
|
| 594 |
|
|
}
|
| 595 |
|
|
}
|
| 596 |
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
| 597 |
|
|
printk("### Error 2 aztcd: aztSeek\n ");
|
| 598 |
|
|
azt_error = 0xA5;
|
| 599 |
|
|
}
|
| 600 |
|
|
RETURNM("aztSeek", -1);
|
| 601 |
|
|
}
|
| 602 |
|
|
|
| 603 |
|
|
/* Send a Set Disk Type command
|
| 604 |
|
|
does not seem to work with Aztech drives, behavior is completely indepen-
|
| 605 |
|
|
dent on which mode is set ???
|
| 606 |
|
|
*/
|
| 607 |
|
|
static int aztSetDiskType(int type)
|
| 608 |
|
|
{
|
| 609 |
|
|
unsigned char data;
|
| 610 |
|
|
int retry;
|
| 611 |
|
|
|
| 612 |
|
|
#ifdef AZT_DEBUG
|
| 613 |
|
|
printk("aztcd: set disk type command: type= %i\n", type);
|
| 614 |
|
|
#endif
|
| 615 |
|
|
for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
|
| 616 |
|
|
aztSendCmd(ACMD_SET_DISK_TYPE);
|
| 617 |
|
|
outb(type, CMD_PORT);
|
| 618 |
|
|
STEN_LOW;
|
| 619 |
|
|
data = inb(DATA_PORT);
|
| 620 |
|
|
if (data == AFL_PA_OK) { /*PA_OK ? */
|
| 621 |
|
|
azt_read_mode = type;
|
| 622 |
|
|
return 0;
|
| 623 |
|
|
}
|
| 624 |
|
|
if (data == AFL_PA_ERR) {
|
| 625 |
|
|
STEN_LOW;
|
| 626 |
|
|
data = inb(DATA_PORT);
|
| 627 |
|
|
printk
|
| 628 |
|
|
("### Error 1 aztcd: aztSetDiskType %x Error Code %x\n",
|
| 629 |
|
|
type, data);
|
| 630 |
|
|
}
|
| 631 |
|
|
}
|
| 632 |
|
|
if (retry >= AZT_RETRY_ATTEMPTS) {
|
| 633 |
|
|
printk("### Error 2 aztcd: aztSetDiskType %x\n ", type);
|
| 634 |
|
|
azt_error = 0xA5;
|
| 635 |
|
|
}
|
| 636 |
|
|
RETURNM("aztSetDiskType", -1);
|
| 637 |
|
|
}
|
| 638 |
|
|
|
| 639 |
|
|
|
| 640 |
|
|
/* used in azt_poll to poll the status, expects another program to issue a
|
| 641 |
|
|
* ACMD_GET_STATUS directly before
|
| 642 |
|
|
*/
|
| 643 |
|
|
static int aztStatus(void)
|
| 644 |
|
|
{
|
| 645 |
|
|
int st;
|
| 646 |
|
|
/* int i;
|
| 647 |
|
|
|
| 648 |
|
|
i = inb(STATUS_PORT) & AFL_STATUS; is STEN=0? ???
|
| 649 |
|
|
if (!i)
|
| 650 |
|
|
*/ STEN_LOW;
|
| 651 |
|
|
if (aztTimeOutCount < AZT_TIMEOUT) {
|
| 652 |
|
|
st = inb(DATA_PORT) & 0xFF;
|
| 653 |
|
|
return st;
|
| 654 |
|
|
} else
|
| 655 |
|
|
RETURNM("aztStatus", -1);
|
| 656 |
|
|
}
|
| 657 |
|
|
|
| 658 |
|
|
/*
|
| 659 |
|
|
* Get the drive status
|
| 660 |
|
|
*/
|
| 661 |
|
|
static int getAztStatus(void)
|
| 662 |
|
|
{
|
| 663 |
|
|
int st;
|
| 664 |
|
|
|
| 665 |
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
| 666 |
|
|
RETURNM("getAztStatus 1", -1);
|
| 667 |
|
|
STEN_LOW;
|
| 668 |
|
|
st = inb(DATA_PORT) & 0xFF;
|
| 669 |
|
|
#ifdef AZT_DEBUG
|
| 670 |
|
|
printk("aztcd: Status = %x\n", st);
|
| 671 |
|
|
#endif
|
| 672 |
|
|
if ((st == 0xFF) || (st & AST_CMD_CHECK)) {
|
| 673 |
|
|
printk
|
| 674 |
|
|
("aztcd: AST_CMD_CHECK error or no status available\n");
|
| 675 |
|
|
return -1;
|
| 676 |
|
|
}
|
| 677 |
|
|
|
| 678 |
|
|
if (((st & AST_MODE_BITS) != AST_BUSY)
|
| 679 |
|
|
&& (aztAudioStatus == CDROM_AUDIO_PLAY))
|
| 680 |
|
|
/* XXX might be an error? look at q-channel? */
|
| 681 |
|
|
aztAudioStatus = CDROM_AUDIO_COMPLETED;
|
| 682 |
|
|
|
| 683 |
|
|
if ((st & AST_DSK_CHG) || (st & AST_NOT_READY)) {
|
| 684 |
|
|
aztDiskChanged = 1;
|
| 685 |
|
|
aztTocUpToDate = 0;
|
| 686 |
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 687 |
|
|
}
|
| 688 |
|
|
return st;
|
| 689 |
|
|
}
|
| 690 |
|
|
|
| 691 |
|
|
|
| 692 |
|
|
/*
|
| 693 |
|
|
* Send a 'Play' command and get the status. Use only from the top half.
|
| 694 |
|
|
*/
|
| 695 |
|
|
static int aztPlay(struct azt_Play_msf *arg)
|
| 696 |
|
|
{
|
| 697 |
|
|
if (sendAztCmd(ACMD_PLAY_AUDIO, arg) < 0)
|
| 698 |
|
|
RETURNM("aztPlay", -1);
|
| 699 |
|
|
return 0;
|
| 700 |
|
|
}
|
| 701 |
|
|
|
| 702 |
|
|
/*
|
| 703 |
|
|
* Subroutines to automatically close the door (tray) and
|
| 704 |
|
|
* lock it closed when the cd is mounted. Leave the tray
|
| 705 |
|
|
* locking as an option
|
| 706 |
|
|
*/
|
| 707 |
|
|
static void aztCloseDoor(void)
|
| 708 |
|
|
{
|
| 709 |
|
|
aztSendCmd(ACMD_CLOSE);
|
| 710 |
|
|
STEN_LOW;
|
| 711 |
|
|
return;
|
| 712 |
|
|
}
|
| 713 |
|
|
|
| 714 |
|
|
static void aztLockDoor(void)
|
| 715 |
|
|
{
|
| 716 |
|
|
#if AZT_ALLOW_TRAY_LOCK
|
| 717 |
|
|
aztSendCmd(ACMD_LOCK);
|
| 718 |
|
|
STEN_LOW;
|
| 719 |
|
|
#endif
|
| 720 |
|
|
return;
|
| 721 |
|
|
}
|
| 722 |
|
|
|
| 723 |
|
|
static void aztUnlockDoor(void)
|
| 724 |
|
|
{
|
| 725 |
|
|
#if AZT_ALLOW_TRAY_LOCK
|
| 726 |
|
|
aztSendCmd(ACMD_UNLOCK);
|
| 727 |
|
|
STEN_LOW;
|
| 728 |
|
|
#endif
|
| 729 |
|
|
return;
|
| 730 |
|
|
}
|
| 731 |
|
|
|
| 732 |
|
|
/*
|
| 733 |
|
|
* Read a value from the drive. Should return quickly, so a busy wait
|
| 734 |
|
|
* is used to avoid excessive rescheduling. The read command itself must
|
| 735 |
|
|
* be issued with aztSendCmd() directly before
|
| 736 |
|
|
*/
|
| 737 |
|
|
static int aztGetValue(unsigned char *result)
|
| 738 |
|
|
{
|
| 739 |
|
|
int s;
|
| 740 |
|
|
|
| 741 |
|
|
STEN_LOW;
|
| 742 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 743 |
|
|
printk("aztcd: aztGetValue timeout\n");
|
| 744 |
|
|
return -1;
|
| 745 |
|
|
}
|
| 746 |
|
|
s = inb(DATA_PORT) & 0xFF;
|
| 747 |
|
|
*result = (unsigned char) s;
|
| 748 |
|
|
return 0;
|
| 749 |
|
|
}
|
| 750 |
|
|
|
| 751 |
|
|
/*
|
| 752 |
|
|
* Read the current Q-channel info. Also used for reading the
|
| 753 |
|
|
* table of contents.
|
| 754 |
|
|
*/
|
| 755 |
|
|
int aztGetQChannelInfo(struct azt_Toc *qp)
|
| 756 |
|
|
{
|
| 757 |
|
|
unsigned char notUsed;
|
| 758 |
|
|
int st;
|
| 759 |
|
|
|
| 760 |
|
|
#ifdef AZT_DEBUG
|
| 761 |
|
|
printk("aztcd: starting aztGetQChannelInfo Time:%li\n", jiffies);
|
| 762 |
|
|
#endif
|
| 763 |
|
|
if ((st = getAztStatus()) == -1)
|
| 764 |
|
|
RETURNM("aztGetQChannelInfo 1", -1);
|
| 765 |
|
|
if (aztSendCmd(ACMD_GET_Q_CHANNEL))
|
| 766 |
|
|
RETURNM("aztGetQChannelInfo 2", -1);
|
| 767 |
|
|
/*STEN_LOW_WAIT; ??? Dosemu0.60's cdrom.c does not like STEN_LOW_WAIT here */
|
| 768 |
|
|
if (aztGetValue(¬Used))
|
| 769 |
|
|
RETURNM("aztGetQChannelInfo 3", -1); /*??? Nullbyte einlesen */
|
| 770 |
|
|
if ((st & AST_MODE_BITS) == AST_INITIAL) {
|
| 771 |
|
|
qp->ctrl_addr = 0; /* when audio stop ACMD_GET_Q_CHANNEL returns */
|
| 772 |
|
|
qp->track = 0; /* only one byte with Aztech drives */
|
| 773 |
|
|
qp->pointIndex = 0;
|
| 774 |
|
|
qp->trackTime.min = 0;
|
| 775 |
|
|
qp->trackTime.sec = 0;
|
| 776 |
|
|
qp->trackTime.frame = 0;
|
| 777 |
|
|
qp->diskTime.min = 0;
|
| 778 |
|
|
qp->diskTime.sec = 0;
|
| 779 |
|
|
qp->diskTime.frame = 0;
|
| 780 |
|
|
return 0;
|
| 781 |
|
|
} else {
|
| 782 |
|
|
if (aztGetValue(&qp->ctrl_addr) < 0)
|
| 783 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 784 |
|
|
if (aztGetValue(&qp->track) < 0)
|
| 785 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 786 |
|
|
if (aztGetValue(&qp->pointIndex) < 0)
|
| 787 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 788 |
|
|
if (aztGetValue(&qp->trackTime.min) < 0)
|
| 789 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 790 |
|
|
if (aztGetValue(&qp->trackTime.sec) < 0)
|
| 791 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 792 |
|
|
if (aztGetValue(&qp->trackTime.frame) < 0)
|
| 793 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 794 |
|
|
if (aztGetValue(¬Used) < 0)
|
| 795 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 796 |
|
|
if (aztGetValue(&qp->diskTime.min) < 0)
|
| 797 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 798 |
|
|
if (aztGetValue(&qp->diskTime.sec) < 0)
|
| 799 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 800 |
|
|
if (aztGetValue(&qp->diskTime.frame) < 0)
|
| 801 |
|
|
RETURNM("aztGetQChannelInfo 4", -1);
|
| 802 |
|
|
}
|
| 803 |
|
|
#ifdef AZT_DEBUG
|
| 804 |
|
|
printk("aztcd: exiting aztGetQChannelInfo Time:%li\n", jiffies);
|
| 805 |
|
|
#endif
|
| 806 |
|
|
return 0;
|
| 807 |
|
|
}
|
| 808 |
|
|
|
| 809 |
|
|
/*
|
| 810 |
|
|
* Read the table of contents (TOC) and TOC header if necessary
|
| 811 |
|
|
*/
|
| 812 |
|
|
static int aztUpdateToc()
|
| 813 |
|
|
{
|
| 814 |
|
|
int st;
|
| 815 |
|
|
|
| 816 |
|
|
#ifdef AZT_DEBUG
|
| 817 |
|
|
printk("aztcd: starting aztUpdateToc Time:%li\n", jiffies);
|
| 818 |
|
|
#endif
|
| 819 |
|
|
if (aztTocUpToDate)
|
| 820 |
|
|
return 0;
|
| 821 |
|
|
|
| 822 |
|
|
if (aztGetDiskInfo() < 0)
|
| 823 |
|
|
return -EIO;
|
| 824 |
|
|
|
| 825 |
|
|
if (aztGetToc(0) < 0)
|
| 826 |
|
|
return -EIO;
|
| 827 |
|
|
|
| 828 |
|
|
/*audio disk detection
|
| 829 |
|
|
with my Aztech drive there is no audio status bit, so I use the copy
|
| 830 |
|
|
protection bit of the first track. If this track is copy protected
|
| 831 |
|
|
(copy bit = 0), I assume, it's an audio disk. Strange, but works ??? */
|
| 832 |
|
|
if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
|
| 833 |
|
|
DiskInfo.audio = 1;
|
| 834 |
|
|
else
|
| 835 |
|
|
DiskInfo.audio = 0;
|
| 836 |
|
|
|
| 837 |
|
|
/* XA detection */
|
| 838 |
|
|
if (!DiskInfo.audio) {
|
| 839 |
|
|
azt_Play.start.min = 0; /*XA detection only seems to work */
|
| 840 |
|
|
azt_Play.start.sec = 2; /*when we play a track */
|
| 841 |
|
|
azt_Play.start.frame = 0;
|
| 842 |
|
|
azt_Play.end.min = 0;
|
| 843 |
|
|
azt_Play.end.sec = 0;
|
| 844 |
|
|
azt_Play.end.frame = 1;
|
| 845 |
|
|
if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
|
| 846 |
|
|
return -1;
|
| 847 |
|
|
DTEN_LOW;
|
| 848 |
|
|
for (st = 0; st < CD_FRAMESIZE; st++)
|
| 849 |
|
|
inb(DATA_PORT);
|
| 850 |
|
|
}
|
| 851 |
|
|
DiskInfo.xa = getAztStatus() & AST_MODE;
|
| 852 |
|
|
if (DiskInfo.xa) {
|
| 853 |
|
|
printk
|
| 854 |
|
|
("aztcd: XA support experimental - mail results to Werner.Zimmermann@fht-esslingen.de\n");
|
| 855 |
|
|
}
|
| 856 |
|
|
|
| 857 |
|
|
/*multisession detection
|
| 858 |
|
|
support for multisession CDs is done automatically with Aztech drives,
|
| 859 |
|
|
we don't have to take care about TOC redirection; if we want the isofs
|
| 860 |
|
|
to take care about redirection, we have to set AZT_MULTISESSION to 1 */
|
| 861 |
|
|
DiskInfo.multi = 0;
|
| 862 |
|
|
#if AZT_MULTISESSION
|
| 863 |
|
|
if (DiskInfo.xa) {
|
| 864 |
|
|
aztGetMultiDiskInfo(); /*here Disk.Info.multi is set */
|
| 865 |
|
|
}
|
| 866 |
|
|
#endif
|
| 867 |
|
|
if (DiskInfo.multi) {
|
| 868 |
|
|
DiskInfo.lastSession.min = Toc[DiskInfo.next].diskTime.min;
|
| 869 |
|
|
DiskInfo.lastSession.sec = Toc[DiskInfo.next].diskTime.sec;
|
| 870 |
|
|
DiskInfo.lastSession.frame =
|
| 871 |
|
|
Toc[DiskInfo.next].diskTime.frame;
|
| 872 |
|
|
printk("aztcd: Multisession support experimental\n");
|
| 873 |
|
|
} else {
|
| 874 |
|
|
DiskInfo.lastSession.min =
|
| 875 |
|
|
Toc[DiskInfo.first].diskTime.min;
|
| 876 |
|
|
DiskInfo.lastSession.sec =
|
| 877 |
|
|
Toc[DiskInfo.first].diskTime.sec;
|
| 878 |
|
|
DiskInfo.lastSession.frame =
|
| 879 |
|
|
Toc[DiskInfo.first].diskTime.frame;
|
| 880 |
|
|
}
|
| 881 |
|
|
|
| 882 |
|
|
aztTocUpToDate = 1;
|
| 883 |
|
|
#ifdef AZT_DEBUG
|
| 884 |
|
|
printk("aztcd: exiting aztUpdateToc Time:%li\n", jiffies);
|
| 885 |
|
|
#endif
|
| 886 |
|
|
return 0;
|
| 887 |
|
|
}
|
| 888 |
|
|
|
| 889 |
|
|
|
| 890 |
|
|
/* Read the table of contents header, i.e. no. of tracks and start of first
|
| 891 |
|
|
* track
|
| 892 |
|
|
*/
|
| 893 |
|
|
static int aztGetDiskInfo()
|
| 894 |
|
|
{
|
| 895 |
|
|
int limit;
|
| 896 |
|
|
unsigned char test;
|
| 897 |
|
|
struct azt_Toc qInfo;
|
| 898 |
|
|
|
| 899 |
|
|
#ifdef AZT_DEBUG
|
| 900 |
|
|
printk("aztcd: starting aztGetDiskInfo Time:%li\n", jiffies);
|
| 901 |
|
|
#endif
|
| 902 |
|
|
if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
|
| 903 |
|
|
RETURNM("aztGetDiskInfo 1", -1);
|
| 904 |
|
|
STEN_LOW_WAIT;
|
| 905 |
|
|
test = 0;
|
| 906 |
|
|
for (limit = 300; limit > 0; limit--) {
|
| 907 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
| 908 |
|
|
RETURNM("aztGetDiskInfo 2", -1);
|
| 909 |
|
|
if (qInfo.pointIndex == 0xA0) { /*Number of FirstTrack */
|
| 910 |
|
|
DiskInfo.first = qInfo.diskTime.min;
|
| 911 |
|
|
DiskInfo.first = azt_bcd2bin(DiskInfo.first);
|
| 912 |
|
|
test = test | 0x01;
|
| 913 |
|
|
}
|
| 914 |
|
|
if (qInfo.pointIndex == 0xA1) { /*Number of LastTrack */
|
| 915 |
|
|
DiskInfo.last = qInfo.diskTime.min;
|
| 916 |
|
|
DiskInfo.last = azt_bcd2bin(DiskInfo.last);
|
| 917 |
|
|
test = test | 0x02;
|
| 918 |
|
|
}
|
| 919 |
|
|
if (qInfo.pointIndex == 0xA2) { /*DiskLength */
|
| 920 |
|
|
DiskInfo.diskLength.min = qInfo.diskTime.min;
|
| 921 |
|
|
DiskInfo.diskLength.sec = qInfo.diskTime.sec;
|
| 922 |
|
|
DiskInfo.diskLength.frame = qInfo.diskTime.frame;
|
| 923 |
|
|
test = test | 0x04;
|
| 924 |
|
|
}
|
| 925 |
|
|
if ((qInfo.pointIndex == DiskInfo.first) && (test & 0x01)) { /*StartTime of First Track */
|
| 926 |
|
|
DiskInfo.firstTrack.min = qInfo.diskTime.min;
|
| 927 |
|
|
DiskInfo.firstTrack.sec = qInfo.diskTime.sec;
|
| 928 |
|
|
DiskInfo.firstTrack.frame = qInfo.diskTime.frame;
|
| 929 |
|
|
test = test | 0x08;
|
| 930 |
|
|
}
|
| 931 |
|
|
if (test == 0x0F)
|
| 932 |
|
|
break;
|
| 933 |
|
|
}
|
| 934 |
|
|
#ifdef AZT_DEBUG
|
| 935 |
|
|
printk("aztcd: exiting aztGetDiskInfo Time:%li\n", jiffies);
|
| 936 |
|
|
printk
|
| 937 |
|
|
("Disk Info: first %d last %d length %02X:%02X.%02X dez first %02X:%02X.%02X dez\n",
|
| 938 |
|
|
DiskInfo.first, DiskInfo.last, DiskInfo.diskLength.min,
|
| 939 |
|
|
DiskInfo.diskLength.sec, DiskInfo.diskLength.frame,
|
| 940 |
|
|
DiskInfo.firstTrack.min, DiskInfo.firstTrack.sec,
|
| 941 |
|
|
DiskInfo.firstTrack.frame);
|
| 942 |
|
|
#endif
|
| 943 |
|
|
if (test != 0x0F)
|
| 944 |
|
|
return -1;
|
| 945 |
|
|
return 0;
|
| 946 |
|
|
}
|
| 947 |
|
|
|
| 948 |
|
|
#if AZT_MULTISESSION
|
| 949 |
|
|
/*
|
| 950 |
|
|
* Get Multisession Disk Info
|
| 951 |
|
|
*/
|
| 952 |
|
|
static int aztGetMultiDiskInfo(void)
|
| 953 |
|
|
{
|
| 954 |
|
|
int limit, k = 5;
|
| 955 |
|
|
unsigned char test;
|
| 956 |
|
|
struct azt_Toc qInfo;
|
| 957 |
|
|
|
| 958 |
|
|
#ifdef AZT_DEBUG
|
| 959 |
|
|
printk("aztcd: starting aztGetMultiDiskInfo\n");
|
| 960 |
|
|
#endif
|
| 961 |
|
|
|
| 962 |
|
|
do {
|
| 963 |
|
|
azt_Play.start.min = Toc[DiskInfo.last + 1].diskTime.min;
|
| 964 |
|
|
azt_Play.start.sec = Toc[DiskInfo.last + 1].diskTime.sec;
|
| 965 |
|
|
azt_Play.start.frame =
|
| 966 |
|
|
Toc[DiskInfo.last + 1].diskTime.frame;
|
| 967 |
|
|
test = 0;
|
| 968 |
|
|
|
| 969 |
|
|
for (limit = 30; limit > 0; limit--) { /*Seek for LeadIn of next session */
|
| 970 |
|
|
if (aztSeek(&azt_Play))
|
| 971 |
|
|
RETURNM("aztGetMultiDiskInfo 1", -1);
|
| 972 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
| 973 |
|
|
RETURNM("aztGetMultiDiskInfo 2", -1);
|
| 974 |
|
|
if ((qInfo.track == 0) && (qInfo.pointIndex))
|
| 975 |
|
|
break; /*LeadIn found */
|
| 976 |
|
|
if ((azt_Play.start.sec += 10) > 59) {
|
| 977 |
|
|
azt_Play.start.sec = 0;
|
| 978 |
|
|
azt_Play.start.min++;
|
| 979 |
|
|
}
|
| 980 |
|
|
}
|
| 981 |
|
|
if (!limit)
|
| 982 |
|
|
break; /*Check, if a leadin track was found, if not we're
|
| 983 |
|
|
at the end of the disk */
|
| 984 |
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
| 985 |
|
|
printk("leadin found track %d pointIndex %x limit %d\n",
|
| 986 |
|
|
qInfo.track, qInfo.pointIndex, limit);
|
| 987 |
|
|
#endif
|
| 988 |
|
|
for (limit = 300; limit > 0; limit--) {
|
| 989 |
|
|
if (++azt_Play.start.frame > 74) {
|
| 990 |
|
|
azt_Play.start.frame = 0;
|
| 991 |
|
|
if (azt_Play.start.sec > 59) {
|
| 992 |
|
|
azt_Play.start.sec = 0;
|
| 993 |
|
|
azt_Play.start.min++;
|
| 994 |
|
|
}
|
| 995 |
|
|
}
|
| 996 |
|
|
if (aztSeek(&azt_Play))
|
| 997 |
|
|
RETURNM("aztGetMultiDiskInfo 3", -1);
|
| 998 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
| 999 |
|
|
RETURNM("aztGetMultiDiskInfo 4", -1);
|
| 1000 |
|
|
if (qInfo.pointIndex == 0xA0) { /*Number of NextTrack */
|
| 1001 |
|
|
DiskInfo.next = qInfo.diskTime.min;
|
| 1002 |
|
|
DiskInfo.next = azt_bcd2bin(DiskInfo.next);
|
| 1003 |
|
|
test = test | 0x01;
|
| 1004 |
|
|
}
|
| 1005 |
|
|
if (qInfo.pointIndex == 0xA1) { /*Number of LastTrack */
|
| 1006 |
|
|
DiskInfo.last = qInfo.diskTime.min;
|
| 1007 |
|
|
DiskInfo.last = azt_bcd2bin(DiskInfo.last);
|
| 1008 |
|
|
test = test | 0x02;
|
| 1009 |
|
|
}
|
| 1010 |
|
|
if (qInfo.pointIndex == 0xA2) { /*DiskLength */
|
| 1011 |
|
|
DiskInfo.diskLength.min =
|
| 1012 |
|
|
qInfo.diskTime.min;
|
| 1013 |
|
|
DiskInfo.diskLength.sec =
|
| 1014 |
|
|
qInfo.diskTime.sec;
|
| 1015 |
|
|
DiskInfo.diskLength.frame =
|
| 1016 |
|
|
qInfo.diskTime.frame;
|
| 1017 |
|
|
test = test | 0x04;
|
| 1018 |
|
|
}
|
| 1019 |
|
|
if ((qInfo.pointIndex == DiskInfo.next) && (test & 0x01)) { /*StartTime of Next Track */
|
| 1020 |
|
|
DiskInfo.nextSession.min =
|
| 1021 |
|
|
qInfo.diskTime.min;
|
| 1022 |
|
|
DiskInfo.nextSession.sec =
|
| 1023 |
|
|
qInfo.diskTime.sec;
|
| 1024 |
|
|
DiskInfo.nextSession.frame =
|
| 1025 |
|
|
qInfo.diskTime.frame;
|
| 1026 |
|
|
test = test | 0x08;
|
| 1027 |
|
|
}
|
| 1028 |
|
|
if (test == 0x0F)
|
| 1029 |
|
|
break;
|
| 1030 |
|
|
}
|
| 1031 |
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
| 1032 |
|
|
printk
|
| 1033 |
|
|
("MultiDisk Info: first %d next %d last %d length %02x:%02x.%02x dez first %02x:%02x.%02x dez next %02x:%02x.%02x dez\n",
|
| 1034 |
|
|
DiskInfo.first, DiskInfo.next, DiskInfo.last,
|
| 1035 |
|
|
DiskInfo.diskLength.min, DiskInfo.diskLength.sec,
|
| 1036 |
|
|
DiskInfo.diskLength.frame, DiskInfo.firstTrack.min,
|
| 1037 |
|
|
DiskInfo.firstTrack.sec, DiskInfo.firstTrack.frame,
|
| 1038 |
|
|
DiskInfo.nextSession.min, DiskInfo.nextSession.sec,
|
| 1039 |
|
|
DiskInfo.nextSession.frame);
|
| 1040 |
|
|
#endif
|
| 1041 |
|
|
if (test != 0x0F)
|
| 1042 |
|
|
break;
|
| 1043 |
|
|
else
|
| 1044 |
|
|
DiskInfo.multi = 1; /*found TOC of more than one session */
|
| 1045 |
|
|
aztGetToc(1);
|
| 1046 |
|
|
} while (--k);
|
| 1047 |
|
|
|
| 1048 |
|
|
#ifdef AZT_DEBUG
|
| 1049 |
|
|
printk("aztcd: exiting aztGetMultiDiskInfo Time:%li\n", jiffies);
|
| 1050 |
|
|
#endif
|
| 1051 |
|
|
return 0;
|
| 1052 |
|
|
}
|
| 1053 |
|
|
#endif
|
| 1054 |
|
|
|
| 1055 |
|
|
/*
|
| 1056 |
|
|
* Read the table of contents (TOC)
|
| 1057 |
|
|
*/
|
| 1058 |
|
|
static int aztGetToc(int multi)
|
| 1059 |
|
|
{
|
| 1060 |
|
|
int i, px;
|
| 1061 |
|
|
int limit;
|
| 1062 |
|
|
struct azt_Toc qInfo;
|
| 1063 |
|
|
|
| 1064 |
|
|
#ifdef AZT_DEBUG
|
| 1065 |
|
|
printk("aztcd: starting aztGetToc Time:%li\n", jiffies);
|
| 1066 |
|
|
#endif
|
| 1067 |
|
|
if (!multi) {
|
| 1068 |
|
|
for (i = 0; i < MAX_TRACKS; i++)
|
| 1069 |
|
|
Toc[i].pointIndex = 0;
|
| 1070 |
|
|
i = DiskInfo.last + 3;
|
| 1071 |
|
|
} else {
|
| 1072 |
|
|
for (i = DiskInfo.next; i < MAX_TRACKS; i++)
|
| 1073 |
|
|
Toc[i].pointIndex = 0;
|
| 1074 |
|
|
i = DiskInfo.last + 4 - DiskInfo.next;
|
| 1075 |
|
|
}
|
| 1076 |
|
|
|
| 1077 |
|
|
/*Is there a good reason to stop motor before TOC read?
|
| 1078 |
|
|
if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
|
| 1079 |
|
|
STEN_LOW_WAIT;
|
| 1080 |
|
|
*/
|
| 1081 |
|
|
|
| 1082 |
|
|
if (!multi) {
|
| 1083 |
|
|
azt_mode = 0x05;
|
| 1084 |
|
|
if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
|
| 1085 |
|
|
RETURNM("aztGetToc 2", -1);
|
| 1086 |
|
|
STEN_LOW_WAIT;
|
| 1087 |
|
|
}
|
| 1088 |
|
|
for (limit = 300; limit > 0; limit--) {
|
| 1089 |
|
|
if (multi) {
|
| 1090 |
|
|
if (++azt_Play.start.sec > 59) {
|
| 1091 |
|
|
azt_Play.start.sec = 0;
|
| 1092 |
|
|
azt_Play.start.min++;
|
| 1093 |
|
|
}
|
| 1094 |
|
|
if (aztSeek(&azt_Play))
|
| 1095 |
|
|
RETURNM("aztGetToc 3", -1);
|
| 1096 |
|
|
}
|
| 1097 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0)
|
| 1098 |
|
|
break;
|
| 1099 |
|
|
|
| 1100 |
|
|
px = azt_bcd2bin(qInfo.pointIndex);
|
| 1101 |
|
|
|
| 1102 |
|
|
if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
|
| 1103 |
|
|
if (Toc[px].pointIndex == 0) {
|
| 1104 |
|
|
Toc[px] = qInfo;
|
| 1105 |
|
|
i--;
|
| 1106 |
|
|
}
|
| 1107 |
|
|
|
| 1108 |
|
|
if (i <= 0)
|
| 1109 |
|
|
break;
|
| 1110 |
|
|
}
|
| 1111 |
|
|
|
| 1112 |
|
|
Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
|
| 1113 |
|
|
Toc[DiskInfo.last].trackTime = DiskInfo.diskLength;
|
| 1114 |
|
|
|
| 1115 |
|
|
#ifdef AZT_DEBUG_MULTISESSION
|
| 1116 |
|
|
printk("aztcd: exiting aztGetToc\n");
|
| 1117 |
|
|
for (i = 1; i <= DiskInfo.last + 1; i++)
|
| 1118 |
|
|
printk
|
| 1119 |
|
|
("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
|
| 1120 |
|
|
i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
|
| 1121 |
|
|
Toc[i].trackTime.min, Toc[i].trackTime.sec,
|
| 1122 |
|
|
Toc[i].trackTime.frame, Toc[i].diskTime.min,
|
| 1123 |
|
|
Toc[i].diskTime.sec, Toc[i].diskTime.frame);
|
| 1124 |
|
|
for (i = 100; i < 103; i++)
|
| 1125 |
|
|
printk
|
| 1126 |
|
|
("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez %02X:%02X.%02X dez\n",
|
| 1127 |
|
|
i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
|
| 1128 |
|
|
Toc[i].trackTime.min, Toc[i].trackTime.sec,
|
| 1129 |
|
|
Toc[i].trackTime.frame, Toc[i].diskTime.min,
|
| 1130 |
|
|
Toc[i].diskTime.sec, Toc[i].diskTime.frame);
|
| 1131 |
|
|
#endif
|
| 1132 |
|
|
|
| 1133 |
|
|
return limit > 0 ? 0 : -1;
|
| 1134 |
|
|
}
|
| 1135 |
|
|
|
| 1136 |
|
|
|
| 1137 |
|
|
/*##########################################################################
|
| 1138 |
|
|
Kernel Interface Functions
|
| 1139 |
|
|
##########################################################################
|
| 1140 |
|
|
*/
|
| 1141 |
|
|
|
| 1142 |
|
|
#ifndef MODULE
|
| 1143 |
|
|
static int __init aztcd_setup(char *str)
|
| 1144 |
|
|
{
|
| 1145 |
|
|
int ints[4];
|
| 1146 |
|
|
|
| 1147 |
|
|
(void) get_options(str, ARRAY_SIZE(ints), ints);
|
| 1148 |
|
|
|
| 1149 |
|
|
if (ints[0] > 0)
|
| 1150 |
|
|
azt_port = ints[1];
|
| 1151 |
|
|
if (ints[1] > 1)
|
| 1152 |
|
|
azt_cont = ints[2];
|
| 1153 |
|
|
return 1;
|
| 1154 |
|
|
}
|
| 1155 |
|
|
|
| 1156 |
|
|
__setup("aztcd=", aztcd_setup);
|
| 1157 |
|
|
|
| 1158 |
|
|
#endif /* !MODULE */
|
| 1159 |
|
|
|
| 1160 |
|
|
/*
|
| 1161 |
|
|
* Checking if the media has been changed
|
| 1162 |
|
|
*/
|
| 1163 |
|
|
static int check_aztcd_media_change(kdev_t full_dev)
|
| 1164 |
|
|
{
|
| 1165 |
|
|
if (aztDiskChanged) { /* disk changed */
|
| 1166 |
|
|
aztDiskChanged = 0;
|
| 1167 |
|
|
return 1;
|
| 1168 |
|
|
} else
|
| 1169 |
|
|
return 0; /* no change */
|
| 1170 |
|
|
}
|
| 1171 |
|
|
|
| 1172 |
|
|
/*
|
| 1173 |
|
|
* Kernel IO-controls
|
| 1174 |
|
|
*/
|
| 1175 |
|
|
static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
|
| 1176 |
|
|
unsigned long arg)
|
| 1177 |
|
|
{
|
| 1178 |
|
|
int i;
|
| 1179 |
|
|
struct azt_Toc qInfo;
|
| 1180 |
|
|
struct cdrom_ti ti;
|
| 1181 |
|
|
struct cdrom_tochdr tocHdr;
|
| 1182 |
|
|
struct cdrom_msf msf;
|
| 1183 |
|
|
struct cdrom_tocentry entry;
|
| 1184 |
|
|
struct azt_Toc *tocPtr;
|
| 1185 |
|
|
struct cdrom_subchnl subchnl;
|
| 1186 |
|
|
struct cdrom_volctrl volctrl;
|
| 1187 |
|
|
|
| 1188 |
|
|
#ifdef AZT_DEBUG
|
| 1189 |
|
|
printk("aztcd: starting aztcd_ioctl - Command:%x Time: %li\n",
|
| 1190 |
|
|
cmd, jiffies);
|
| 1191 |
|
|
printk("aztcd Status %x\n", getAztStatus());
|
| 1192 |
|
|
#endif
|
| 1193 |
|
|
if (!ip)
|
| 1194 |
|
|
RETURNM("aztcd_ioctl 1", -EINVAL);
|
| 1195 |
|
|
if (getAztStatus() < 0)
|
| 1196 |
|
|
RETURNM("aztcd_ioctl 2", -EIO);
|
| 1197 |
|
|
if ((!aztTocUpToDate) || (aztDiskChanged)) {
|
| 1198 |
|
|
if ((i = aztUpdateToc()) < 0)
|
| 1199 |
|
|
RETURNM("aztcd_ioctl 3", i); /* error reading TOC */
|
| 1200 |
|
|
}
|
| 1201 |
|
|
|
| 1202 |
|
|
switch (cmd) {
|
| 1203 |
|
|
case CDROMSTART: /* Spin up the drive. Don't know, what to do,
|
| 1204 |
|
|
at least close the tray */
|
| 1205 |
|
|
#if AZT_PRIVATE_IOCTLS
|
| 1206 |
|
|
if (aztSendCmd(ACMD_CLOSE))
|
| 1207 |
|
|
RETURNM("aztcd_ioctl 4", -1);
|
| 1208 |
|
|
STEN_LOW_WAIT;
|
| 1209 |
|
|
#endif
|
| 1210 |
|
|
break;
|
| 1211 |
|
|
case CDROMSTOP: /* Spin down the drive */
|
| 1212 |
|
|
if (aztSendCmd(ACMD_STOP))
|
| 1213 |
|
|
RETURNM("aztcd_ioctl 5", -1);
|
| 1214 |
|
|
STEN_LOW_WAIT;
|
| 1215 |
|
|
/* should we do anything if it fails? */
|
| 1216 |
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 1217 |
|
|
break;
|
| 1218 |
|
|
case CDROMPAUSE: /* Pause the drive */
|
| 1219 |
|
|
if (aztAudioStatus != CDROM_AUDIO_PLAY)
|
| 1220 |
|
|
return -EINVAL;
|
| 1221 |
|
|
|
| 1222 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0) { /* didn't get q channel info */
|
| 1223 |
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 1224 |
|
|
RETURNM("aztcd_ioctl 7", 0);
|
| 1225 |
|
|
}
|
| 1226 |
|
|
azt_Play.start = qInfo.diskTime; /* remember restart point */
|
| 1227 |
|
|
|
| 1228 |
|
|
if (aztSendCmd(ACMD_PAUSE))
|
| 1229 |
|
|
RETURNM("aztcd_ioctl 8", -1);
|
| 1230 |
|
|
STEN_LOW_WAIT;
|
| 1231 |
|
|
aztAudioStatus = CDROM_AUDIO_PAUSED;
|
| 1232 |
|
|
break;
|
| 1233 |
|
|
case CDROMRESUME: /* Play it again, Sam */
|
| 1234 |
|
|
if (aztAudioStatus != CDROM_AUDIO_PAUSED)
|
| 1235 |
|
|
return -EINVAL;
|
| 1236 |
|
|
/* restart the drive at the saved position. */
|
| 1237 |
|
|
i = aztPlay(&azt_Play);
|
| 1238 |
|
|
if (i < 0) {
|
| 1239 |
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
| 1240 |
|
|
return -EIO;
|
| 1241 |
|
|
}
|
| 1242 |
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
| 1243 |
|
|
break;
|
| 1244 |
|
|
case CDROMMULTISESSION: /*multisession support -- experimental */
|
| 1245 |
|
|
{
|
| 1246 |
|
|
struct cdrom_multisession ms;
|
| 1247 |
|
|
#ifdef AZT_DEBUG
|
| 1248 |
|
|
printk("aztcd ioctl MULTISESSION\n");
|
| 1249 |
|
|
#endif
|
| 1250 |
|
|
if (copy_from_user
|
| 1251 |
|
|
(&ms, (void *) arg,
|
| 1252 |
|
|
sizeof(struct cdrom_multisession)))
|
| 1253 |
|
|
return -EFAULT;
|
| 1254 |
|
|
if (ms.addr_format == CDROM_MSF) {
|
| 1255 |
|
|
ms.addr.msf.minute =
|
| 1256 |
|
|
azt_bcd2bin(DiskInfo.lastSession.min);
|
| 1257 |
|
|
ms.addr.msf.second =
|
| 1258 |
|
|
azt_bcd2bin(DiskInfo.lastSession.sec);
|
| 1259 |
|
|
ms.addr.msf.frame =
|
| 1260 |
|
|
azt_bcd2bin(DiskInfo.lastSession.
|
| 1261 |
|
|
frame);
|
| 1262 |
|
|
} else if (ms.addr_format == CDROM_LBA)
|
| 1263 |
|
|
ms.addr.lba =
|
| 1264 |
|
|
azt_msf2hsg(&DiskInfo.lastSession);
|
| 1265 |
|
|
else
|
| 1266 |
|
|
return -EINVAL;
|
| 1267 |
|
|
ms.xa_flag = DiskInfo.xa;
|
| 1268 |
|
|
if (copy_to_user
|
| 1269 |
|
|
((void *) arg, &ms,
|
| 1270 |
|
|
sizeof(struct cdrom_multisession)))
|
| 1271 |
|
|
return -EFAULT;
|
| 1272 |
|
|
#ifdef AZT_DEBUG
|
| 1273 |
|
|
if (ms.addr_format == CDROM_MSF)
|
| 1274 |
|
|
printk
|
| 1275 |
|
|
("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
|
| 1276 |
|
|
ms.xa_flag, ms.addr.msf.minute,
|
| 1277 |
|
|
ms.addr.msf.second, ms.addr.msf.frame,
|
| 1278 |
|
|
DiskInfo.lastSession.min,
|
| 1279 |
|
|
DiskInfo.lastSession.sec,
|
| 1280 |
|
|
DiskInfo.lastSession.frame);
|
| 1281 |
|
|
else
|
| 1282 |
|
|
printk
|
| 1283 |
|
|
("aztcd multisession %d, lba:0x%08x [%02x:%02x.%02x])\n",
|
| 1284 |
|
|
ms.xa_flag, ms.addr.lba,
|
| 1285 |
|
|
DiskInfo.lastSession.min,
|
| 1286 |
|
|
DiskInfo.lastSession.sec,
|
| 1287 |
|
|
DiskInfo.lastSession.frame);
|
| 1288 |
|
|
#endif
|
| 1289 |
|
|
return 0;
|
| 1290 |
|
|
}
|
| 1291 |
|
|
case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
|
| 1292 |
|
|
if (copy_from_user(&ti, (void *) arg, sizeof ti))
|
| 1293 |
|
|
return -EFAULT;
|
| 1294 |
|
|
if (ti.cdti_trk0 < DiskInfo.first
|
| 1295 |
|
|
|| ti.cdti_trk0 > DiskInfo.last
|
| 1296 |
|
|
|| ti.cdti_trk1 < ti.cdti_trk0) {
|
| 1297 |
|
|
return -EINVAL;
|
| 1298 |
|
|
}
|
| 1299 |
|
|
if (ti.cdti_trk1 > DiskInfo.last)
|
| 1300 |
|
|
ti.cdti_trk1 = DiskInfo.last;
|
| 1301 |
|
|
azt_Play.start = Toc[ti.cdti_trk0].diskTime;
|
| 1302 |
|
|
azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
|
| 1303 |
|
|
#ifdef AZT_DEBUG
|
| 1304 |
|
|
printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
|
| 1305 |
|
|
azt_Play.start.min, azt_Play.start.sec,
|
| 1306 |
|
|
azt_Play.start.frame, azt_Play.end.min,
|
| 1307 |
|
|
azt_Play.end.sec, azt_Play.end.frame);
|
| 1308 |
|
|
#endif
|
| 1309 |
|
|
i = aztPlay(&azt_Play);
|
| 1310 |
|
|
if (i < 0) {
|
| 1311 |
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
| 1312 |
|
|
return -EIO;
|
| 1313 |
|
|
}
|
| 1314 |
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
| 1315 |
|
|
break;
|
| 1316 |
|
|
case CDROMPLAYMSF: /* Play starting at the given MSF address. */
|
| 1317 |
|
|
/* if (aztAudioStatus == CDROM_AUDIO_PLAY)
|
| 1318 |
|
|
{ if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
|
| 1319 |
|
|
STEN_LOW;
|
| 1320 |
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 1321 |
|
|
}
|
| 1322 |
|
|
*/
|
| 1323 |
|
|
if (copy_from_user(&msf, (void *) arg, sizeof msf))
|
| 1324 |
|
|
return -EFAULT;
|
| 1325 |
|
|
/* convert to bcd */
|
| 1326 |
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
| 1327 |
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
| 1328 |
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
| 1329 |
|
|
azt_bin2bcd(&msf.cdmsf_min1);
|
| 1330 |
|
|
azt_bin2bcd(&msf.cdmsf_sec1);
|
| 1331 |
|
|
azt_bin2bcd(&msf.cdmsf_frame1);
|
| 1332 |
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
| 1333 |
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
| 1334 |
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
| 1335 |
|
|
azt_Play.end.min = msf.cdmsf_min1;
|
| 1336 |
|
|
azt_Play.end.sec = msf.cdmsf_sec1;
|
| 1337 |
|
|
azt_Play.end.frame = msf.cdmsf_frame1;
|
| 1338 |
|
|
#ifdef AZT_DEBUG
|
| 1339 |
|
|
printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
|
| 1340 |
|
|
azt_Play.start.min, azt_Play.start.sec,
|
| 1341 |
|
|
azt_Play.start.frame, azt_Play.end.min,
|
| 1342 |
|
|
azt_Play.end.sec, azt_Play.end.frame);
|
| 1343 |
|
|
#endif
|
| 1344 |
|
|
i = aztPlay(&azt_Play);
|
| 1345 |
|
|
if (i < 0) {
|
| 1346 |
|
|
aztAudioStatus = CDROM_AUDIO_ERROR;
|
| 1347 |
|
|
return -EIO;
|
| 1348 |
|
|
}
|
| 1349 |
|
|
aztAudioStatus = CDROM_AUDIO_PLAY;
|
| 1350 |
|
|
break;
|
| 1351 |
|
|
|
| 1352 |
|
|
case CDROMREADTOCHDR: /* Read the table of contents header */
|
| 1353 |
|
|
tocHdr.cdth_trk0 = DiskInfo.first;
|
| 1354 |
|
|
tocHdr.cdth_trk1 = DiskInfo.last;
|
| 1355 |
|
|
if (copy_to_user((void *) arg, &tocHdr, sizeof tocHdr))
|
| 1356 |
|
|
return -EFAULT;
|
| 1357 |
|
|
break;
|
| 1358 |
|
|
case CDROMREADTOCENTRY: /* Read an entry in the table of contents */
|
| 1359 |
|
|
if (copy_from_user(&entry, (void *) arg, sizeof entry))
|
| 1360 |
|
|
return -EFAULT;
|
| 1361 |
|
|
if ((!aztTocUpToDate) || aztDiskChanged)
|
| 1362 |
|
|
aztUpdateToc();
|
| 1363 |
|
|
if (entry.cdte_track == CDROM_LEADOUT)
|
| 1364 |
|
|
tocPtr = &Toc[DiskInfo.last + 1];
|
| 1365 |
|
|
else if (entry.cdte_track > DiskInfo.last
|
| 1366 |
|
|
|| entry.cdte_track < DiskInfo.first) {
|
| 1367 |
|
|
return -EINVAL;
|
| 1368 |
|
|
} else
|
| 1369 |
|
|
tocPtr = &Toc[entry.cdte_track];
|
| 1370 |
|
|
entry.cdte_adr = tocPtr->ctrl_addr;
|
| 1371 |
|
|
entry.cdte_ctrl = tocPtr->ctrl_addr >> 4;
|
| 1372 |
|
|
if (entry.cdte_format == CDROM_LBA)
|
| 1373 |
|
|
entry.cdte_addr.lba =
|
| 1374 |
|
|
azt_msf2hsg(&tocPtr->diskTime);
|
| 1375 |
|
|
else if (entry.cdte_format == CDROM_MSF) {
|
| 1376 |
|
|
entry.cdte_addr.msf.minute =
|
| 1377 |
|
|
azt_bcd2bin(tocPtr->diskTime.min);
|
| 1378 |
|
|
entry.cdte_addr.msf.second =
|
| 1379 |
|
|
azt_bcd2bin(tocPtr->diskTime.sec);
|
| 1380 |
|
|
entry.cdte_addr.msf.frame =
|
| 1381 |
|
|
azt_bcd2bin(tocPtr->diskTime.frame);
|
| 1382 |
|
|
} else {
|
| 1383 |
|
|
return -EINVAL;
|
| 1384 |
|
|
}
|
| 1385 |
|
|
if (copy_to_user((void *) arg, &entry, sizeof entry))
|
| 1386 |
|
|
return -EFAULT;
|
| 1387 |
|
|
break;
|
| 1388 |
|
|
case CDROMSUBCHNL: /* Get subchannel info */
|
| 1389 |
|
|
if (copy_from_user
|
| 1390 |
|
|
(&subchnl, (void *) arg, sizeof(struct cdrom_subchnl)))
|
| 1391 |
|
|
return -EFAULT;
|
| 1392 |
|
|
if (aztGetQChannelInfo(&qInfo) < 0) {
|
| 1393 |
|
|
#ifdef AZT_DEBUG
|
| 1394 |
|
|
printk
|
| 1395 |
|
|
("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",
|
| 1396 |
|
|
cmd);
|
| 1397 |
|
|
#endif
|
| 1398 |
|
|
return -EIO;
|
| 1399 |
|
|
}
|
| 1400 |
|
|
subchnl.cdsc_audiostatus = aztAudioStatus;
|
| 1401 |
|
|
subchnl.cdsc_adr = qInfo.ctrl_addr;
|
| 1402 |
|
|
subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
|
| 1403 |
|
|
subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
|
| 1404 |
|
|
subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
|
| 1405 |
|
|
if (subchnl.cdsc_format == CDROM_LBA) {
|
| 1406 |
|
|
subchnl.cdsc_absaddr.lba =
|
| 1407 |
|
|
azt_msf2hsg(&qInfo.diskTime);
|
| 1408 |
|
|
subchnl.cdsc_reladdr.lba =
|
| 1409 |
|
|
azt_msf2hsg(&qInfo.trackTime);
|
| 1410 |
|
|
} else { /*default */
|
| 1411 |
|
|
subchnl.cdsc_format = CDROM_MSF;
|
| 1412 |
|
|
subchnl.cdsc_absaddr.msf.minute =
|
| 1413 |
|
|
azt_bcd2bin(qInfo.diskTime.min);
|
| 1414 |
|
|
subchnl.cdsc_absaddr.msf.second =
|
| 1415 |
|
|
azt_bcd2bin(qInfo.diskTime.sec);
|
| 1416 |
|
|
subchnl.cdsc_absaddr.msf.frame =
|
| 1417 |
|
|
azt_bcd2bin(qInfo.diskTime.frame);
|
| 1418 |
|
|
subchnl.cdsc_reladdr.msf.minute =
|
| 1419 |
|
|
azt_bcd2bin(qInfo.trackTime.min);
|
| 1420 |
|
|
subchnl.cdsc_reladdr.msf.second =
|
| 1421 |
|
|
azt_bcd2bin(qInfo.trackTime.sec);
|
| 1422 |
|
|
subchnl.cdsc_reladdr.msf.frame =
|
| 1423 |
|
|
azt_bcd2bin(qInfo.trackTime.frame);
|
| 1424 |
|
|
}
|
| 1425 |
|
|
if (copy_to_user
|
| 1426 |
|
|
((void *) arg, &subchnl, sizeof(struct cdrom_subchnl)))
|
| 1427 |
|
|
return -EFAULT;
|
| 1428 |
|
|
break;
|
| 1429 |
|
|
case CDROMVOLCTRL: /* Volume control
|
| 1430 |
|
|
* With my Aztech CD268-01A volume control does not work, I can only
|
| 1431 |
|
|
turn the channels on (any value !=0) or off (value==0). Maybe it
|
| 1432 |
|
|
works better with your drive */
|
| 1433 |
|
|
if (copy_from_user
|
| 1434 |
|
|
(&volctrl, (char *) arg, sizeof(volctrl)))
|
| 1435 |
|
|
return -EFAULT;
|
| 1436 |
|
|
azt_Play.start.min = 0x21;
|
| 1437 |
|
|
azt_Play.start.sec = 0x84;
|
| 1438 |
|
|
azt_Play.start.frame = volctrl.channel0;
|
| 1439 |
|
|
azt_Play.end.min = volctrl.channel1;
|
| 1440 |
|
|
azt_Play.end.sec = volctrl.channel2;
|
| 1441 |
|
|
azt_Play.end.frame = volctrl.channel3;
|
| 1442 |
|
|
sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
|
| 1443 |
|
|
STEN_LOW_WAIT;
|
| 1444 |
|
|
break;
|
| 1445 |
|
|
case CDROMEJECT:
|
| 1446 |
|
|
aztUnlockDoor(); /* Assume user knows what they're doing */
|
| 1447 |
|
|
/* all drives can at least stop! */
|
| 1448 |
|
|
if (aztAudioStatus == CDROM_AUDIO_PLAY) {
|
| 1449 |
|
|
if (aztSendCmd(ACMD_STOP))
|
| 1450 |
|
|
RETURNM("azt_ioctl 10", -1);
|
| 1451 |
|
|
STEN_LOW_WAIT;
|
| 1452 |
|
|
}
|
| 1453 |
|
|
if (aztSendCmd(ACMD_EJECT))
|
| 1454 |
|
|
RETURNM("azt_ioctl 11", -1);
|
| 1455 |
|
|
STEN_LOW_WAIT;
|
| 1456 |
|
|
aztAudioStatus = CDROM_AUDIO_NO_STATUS;
|
| 1457 |
|
|
break;
|
| 1458 |
|
|
case CDROMEJECT_SW:
|
| 1459 |
|
|
azt_auto_eject = (char) arg;
|
| 1460 |
|
|
break;
|
| 1461 |
|
|
case CDROMRESET:
|
| 1462 |
|
|
outb(ACMD_SOFT_RESET, CMD_PORT); /*send reset */
|
| 1463 |
|
|
STEN_LOW;
|
| 1464 |
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? */
|
| 1465 |
|
|
printk
|
| 1466 |
|
|
("aztcd: AZTECH CD-ROM drive does not respond\n");
|
| 1467 |
|
|
}
|
| 1468 |
|
|
break;
|
| 1469 |
|
|
/*Take care, the following code is not compatible with other CD-ROM drivers,
|
| 1470 |
|
|
use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
|
| 1471 |
|
|
if you do not want to use it!
|
| 1472 |
|
|
*/
|
| 1473 |
|
|
#if AZT_PRIVATE_IOCTLS
|
| 1474 |
|
|
case CDROMREADCOOKED: /*read data in mode 1 (2048 Bytes) */
|
| 1475 |
|
|
case CDROMREADRAW: /*read data in mode 2 (2336 Bytes) */
|
| 1476 |
|
|
{
|
| 1477 |
|
|
if (copy_from_user(&msf, (void *) arg, sizeof msf))
|
| 1478 |
|
|
return -EFAULT;
|
| 1479 |
|
|
/* convert to bcd */
|
| 1480 |
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
| 1481 |
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
| 1482 |
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
| 1483 |
|
|
msf.cdmsf_min1 = 0;
|
| 1484 |
|
|
msf.cdmsf_sec1 = 0;
|
| 1485 |
|
|
msf.cdmsf_frame1 = 1; /*read only one frame */
|
| 1486 |
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
| 1487 |
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
| 1488 |
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
| 1489 |
|
|
azt_Play.end.min = msf.cdmsf_min1;
|
| 1490 |
|
|
azt_Play.end.sec = msf.cdmsf_sec1;
|
| 1491 |
|
|
azt_Play.end.frame = msf.cdmsf_frame1;
|
| 1492 |
|
|
if (cmd == CDROMREADRAW) {
|
| 1493 |
|
|
if (DiskInfo.xa) {
|
| 1494 |
|
|
return -1; /*XA Disks can't be read raw */
|
| 1495 |
|
|
} else {
|
| 1496 |
|
|
if (sendAztCmd
|
| 1497 |
|
|
(ACMD_PLAY_READ_RAW,
|
| 1498 |
|
|
&azt_Play))
|
| 1499 |
|
|
return -1;
|
| 1500 |
|
|
DTEN_LOW;
|
| 1501 |
|
|
insb(DATA_PORT, buf,
|
| 1502 |
|
|
CD_FRAMESIZE_RAW);
|
| 1503 |
|
|
if (copy_to_user
|
| 1504 |
|
|
((void *) arg, &buf,
|
| 1505 |
|
|
CD_FRAMESIZE_RAW))
|
| 1506 |
|
|
return -EFAULT;
|
| 1507 |
|
|
}
|
| 1508 |
|
|
} else
|
| 1509 |
|
|
/*CDROMREADCOOKED*/ {
|
| 1510 |
|
|
if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
|
| 1511 |
|
|
return -1;
|
| 1512 |
|
|
DTEN_LOW;
|
| 1513 |
|
|
insb(DATA_PORT, buf, CD_FRAMESIZE);
|
| 1514 |
|
|
if (copy_to_user
|
| 1515 |
|
|
((void *) arg, &buf, CD_FRAMESIZE))
|
| 1516 |
|
|
return -EFAULT;
|
| 1517 |
|
|
}
|
| 1518 |
|
|
}
|
| 1519 |
|
|
break;
|
| 1520 |
|
|
case CDROMSEEK: /*seek msf address */
|
| 1521 |
|
|
if (copy_from_user(&msf, (void *) arg, sizeof msf))
|
| 1522 |
|
|
return -EFAULT;
|
| 1523 |
|
|
/* convert to bcd */
|
| 1524 |
|
|
azt_bin2bcd(&msf.cdmsf_min0);
|
| 1525 |
|
|
azt_bin2bcd(&msf.cdmsf_sec0);
|
| 1526 |
|
|
azt_bin2bcd(&msf.cdmsf_frame0);
|
| 1527 |
|
|
azt_Play.start.min = msf.cdmsf_min0;
|
| 1528 |
|
|
azt_Play.start.sec = msf.cdmsf_sec0;
|
| 1529 |
|
|
azt_Play.start.frame = msf.cdmsf_frame0;
|
| 1530 |
|
|
if (aztSeek(&azt_Play))
|
| 1531 |
|
|
return -1;
|
| 1532 |
|
|
break;
|
| 1533 |
|
|
#endif /*end of incompatible code */
|
| 1534 |
|
|
case CDROMREADMODE1: /*set read data in mode 1 */
|
| 1535 |
|
|
return aztSetDiskType(AZT_MODE_1);
|
| 1536 |
|
|
case CDROMREADMODE2: /*set read data in mode 2 */
|
| 1537 |
|
|
return aztSetDiskType(AZT_MODE_2);
|
| 1538 |
|
|
default:
|
| 1539 |
|
|
return -EINVAL;
|
| 1540 |
|
|
}
|
| 1541 |
|
|
#ifdef AZT_DEBUG
|
| 1542 |
|
|
printk("aztcd: exiting aztcd_ioctl Command:%x Time:%li\n", cmd,
|
| 1543 |
|
|
jiffies);
|
| 1544 |
|
|
#endif
|
| 1545 |
|
|
return 0;
|
| 1546 |
|
|
}
|
| 1547 |
|
|
|
| 1548 |
|
|
/*
|
| 1549 |
|
|
* Take care of the different block sizes between cdrom and Linux.
|
| 1550 |
|
|
* When Linux gets variable block sizes this will probably go away.
|
| 1551 |
|
|
*/
|
| 1552 |
|
|
static void azt_transfer(void)
|
| 1553 |
|
|
{
|
| 1554 |
|
|
#ifdef AZT_TEST
|
| 1555 |
|
|
printk("aztcd: executing azt_transfer Time:%li\n", jiffies);
|
| 1556 |
|
|
#endif
|
| 1557 |
|
|
if (CURRENT_VALID) {
|
| 1558 |
|
|
while (CURRENT->nr_sectors) {
|
| 1559 |
|
|
int bn = CURRENT->sector / 4;
|
| 1560 |
|
|
int i;
|
| 1561 |
|
|
for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn;
|
| 1562 |
|
|
++i);
|
| 1563 |
|
|
if (i < AZT_BUF_SIZ) {
|
| 1564 |
|
|
int offs =
|
| 1565 |
|
|
(i * 4 + (CURRENT->sector & 3)) * 512;
|
| 1566 |
|
|
int nr_sectors = 4 - (CURRENT->sector & 3);
|
| 1567 |
|
|
if (azt_buf_out != i) {
|
| 1568 |
|
|
azt_buf_out = i;
|
| 1569 |
|
|
if (azt_buf_bn[i] != bn) {
|
| 1570 |
|
|
azt_buf_out = -1;
|
| 1571 |
|
|
continue;
|
| 1572 |
|
|
}
|
| 1573 |
|
|
}
|
| 1574 |
|
|
if (nr_sectors > CURRENT->nr_sectors)
|
| 1575 |
|
|
nr_sectors = CURRENT->nr_sectors;
|
| 1576 |
|
|
memcpy(CURRENT->buffer, azt_buf + offs,
|
| 1577 |
|
|
nr_sectors * 512);
|
| 1578 |
|
|
CURRENT->nr_sectors -= nr_sectors;
|
| 1579 |
|
|
CURRENT->sector += nr_sectors;
|
| 1580 |
|
|
CURRENT->buffer += nr_sectors * 512;
|
| 1581 |
|
|
} else {
|
| 1582 |
|
|
azt_buf_out = -1;
|
| 1583 |
|
|
break;
|
| 1584 |
|
|
}
|
| 1585 |
|
|
}
|
| 1586 |
|
|
}
|
| 1587 |
|
|
}
|
| 1588 |
|
|
|
| 1589 |
|
|
static void do_aztcd_request(request_queue_t * q)
|
| 1590 |
|
|
{
|
| 1591 |
|
|
#ifdef AZT_TEST
|
| 1592 |
|
|
printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT->sector,
|
| 1593 |
|
|
CURRENT->nr_sectors, jiffies);
|
| 1594 |
|
|
#endif
|
| 1595 |
|
|
if (DiskInfo.audio) {
|
| 1596 |
|
|
printk("aztcd: Error, tried to mount an Audio CD\n");
|
| 1597 |
|
|
end_request(0);
|
| 1598 |
|
|
return;
|
| 1599 |
|
|
}
|
| 1600 |
|
|
azt_transfer_is_active = 1;
|
| 1601 |
|
|
while (CURRENT_VALID) {
|
| 1602 |
|
|
if (CURRENT->bh) {
|
| 1603 |
|
|
if (!buffer_locked(CURRENT->bh))
|
| 1604 |
|
|
panic(DEVICE_NAME ": block not locked");
|
| 1605 |
|
|
}
|
| 1606 |
|
|
azt_transfer();
|
| 1607 |
|
|
if (CURRENT->nr_sectors == 0) {
|
| 1608 |
|
|
end_request(1);
|
| 1609 |
|
|
} else {
|
| 1610 |
|
|
azt_buf_out = -1; /* Want to read a block not in buffer */
|
| 1611 |
|
|
if (azt_state == AZT_S_IDLE) {
|
| 1612 |
|
|
if ((!aztTocUpToDate) || aztDiskChanged) {
|
| 1613 |
|
|
if (aztUpdateToc() < 0) {
|
| 1614 |
|
|
while (CURRENT_VALID)
|
| 1615 |
|
|
end_request(0);
|
| 1616 |
|
|
break;
|
| 1617 |
|
|
}
|
| 1618 |
|
|
}
|
| 1619 |
|
|
azt_state = AZT_S_START;
|
| 1620 |
|
|
AztTries = 5;
|
| 1621 |
|
|
SET_TIMER(azt_poll, HZ / 100);
|
| 1622 |
|
|
}
|
| 1623 |
|
|
break;
|
| 1624 |
|
|
}
|
| 1625 |
|
|
}
|
| 1626 |
|
|
azt_transfer_is_active = 0;
|
| 1627 |
|
|
#ifdef AZT_TEST2
|
| 1628 |
|
|
printk
|
| 1629 |
|
|
("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n",
|
| 1630 |
|
|
azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
|
| 1631 |
|
|
printk(" do_aztcd_request ends Time:%li\n", jiffies);
|
| 1632 |
|
|
#endif
|
| 1633 |
|
|
}
|
| 1634 |
|
|
|
| 1635 |
|
|
|
| 1636 |
|
|
static void azt_invalidate_buffers(void)
|
| 1637 |
|
|
{
|
| 1638 |
|
|
int i;
|
| 1639 |
|
|
|
| 1640 |
|
|
#ifdef AZT_DEBUG
|
| 1641 |
|
|
printk("aztcd: executing azt_invalidate_buffers\n");
|
| 1642 |
|
|
#endif
|
| 1643 |
|
|
for (i = 0; i < AZT_BUF_SIZ; ++i)
|
| 1644 |
|
|
azt_buf_bn[i] = -1;
|
| 1645 |
|
|
azt_buf_out = -1;
|
| 1646 |
|
|
}
|
| 1647 |
|
|
|
| 1648 |
|
|
/*
|
| 1649 |
|
|
* Open the device special file. Check that a disk is in.
|
| 1650 |
|
|
*/
|
| 1651 |
|
|
int aztcd_open(struct inode *ip, struct file *fp)
|
| 1652 |
|
|
{
|
| 1653 |
|
|
int st;
|
| 1654 |
|
|
|
| 1655 |
|
|
#ifdef AZT_DEBUG
|
| 1656 |
|
|
printk("aztcd: starting aztcd_open\n");
|
| 1657 |
|
|
#endif
|
| 1658 |
|
|
|
| 1659 |
|
|
if (aztPresent == 0)
|
| 1660 |
|
|
return -ENXIO; /* no hardware */
|
| 1661 |
|
|
|
| 1662 |
|
|
if (!azt_open_count && azt_state == AZT_S_IDLE) {
|
| 1663 |
|
|
azt_invalidate_buffers();
|
| 1664 |
|
|
|
| 1665 |
|
|
st = getAztStatus(); /* check drive status */
|
| 1666 |
|
|
if (st == -1)
|
| 1667 |
|
|
goto err_out; /* drive doesn't respond */
|
| 1668 |
|
|
|
| 1669 |
|
|
if (st & AST_DOOR_OPEN) { /* close door, then get the status again. */
|
| 1670 |
|
|
printk("aztcd: Door Open?\n");
|
| 1671 |
|
|
aztCloseDoor();
|
| 1672 |
|
|
st = getAztStatus();
|
| 1673 |
|
|
}
|
| 1674 |
|
|
|
| 1675 |
|
|
if ((st & AST_NOT_READY) || (st & AST_DSK_CHG)) { /*no disk in drive or changed */
|
| 1676 |
|
|
printk
|
| 1677 |
|
|
("aztcd: Disk Changed or No Disk in Drive?\n");
|
| 1678 |
|
|
aztTocUpToDate = 0;
|
| 1679 |
|
|
}
|
| 1680 |
|
|
if (aztUpdateToc())
|
| 1681 |
|
|
goto err_out;
|
| 1682 |
|
|
|
| 1683 |
|
|
}
|
| 1684 |
|
|
++azt_open_count;
|
| 1685 |
|
|
aztLockDoor();
|
| 1686 |
|
|
|
| 1687 |
|
|
#ifdef AZT_DEBUG
|
| 1688 |
|
|
printk("aztcd: exiting aztcd_open\n");
|
| 1689 |
|
|
#endif
|
| 1690 |
|
|
return 0;
|
| 1691 |
|
|
|
| 1692 |
|
|
err_out:
|
| 1693 |
|
|
return -EIO;
|
| 1694 |
|
|
}
|
| 1695 |
|
|
|
| 1696 |
|
|
|
| 1697 |
|
|
/*
|
| 1698 |
|
|
* On close, we flush all azt blocks from the buffer cache.
|
| 1699 |
|
|
*/
|
| 1700 |
|
|
static int aztcd_release(struct inode *inode, struct file *file)
|
| 1701 |
|
|
{
|
| 1702 |
|
|
#ifdef AZT_DEBUG
|
| 1703 |
|
|
printk("aztcd: executing aztcd_release\n");
|
| 1704 |
|
|
printk("inode: %p, inode->i_rdev: %x file: %p\n", inode,
|
| 1705 |
|
|
inode->i_rdev, file);
|
| 1706 |
|
|
#endif
|
| 1707 |
|
|
if (!--azt_open_count) {
|
| 1708 |
|
|
azt_invalidate_buffers();
|
| 1709 |
|
|
aztUnlockDoor();
|
| 1710 |
|
|
if (azt_auto_eject)
|
| 1711 |
|
|
aztSendCmd(ACMD_EJECT);
|
| 1712 |
|
|
CLEAR_TIMER;
|
| 1713 |
|
|
}
|
| 1714 |
|
|
return 0;
|
| 1715 |
|
|
}
|
| 1716 |
|
|
|
| 1717 |
|
|
|
| 1718 |
|
|
|
| 1719 |
|
|
/*
|
| 1720 |
|
|
* Test for presence of drive and initialize it. Called at boot time.
|
| 1721 |
|
|
*/
|
| 1722 |
|
|
|
| 1723 |
|
|
int __init aztcd_init(void)
|
| 1724 |
|
|
{
|
| 1725 |
|
|
long int count, max_count;
|
| 1726 |
|
|
unsigned char result[50];
|
| 1727 |
|
|
int st;
|
| 1728 |
|
|
int i = 0;
|
| 1729 |
|
|
|
| 1730 |
|
|
if (azt_port == 0) {
|
| 1731 |
|
|
printk("aztcd: no Aztech CD-ROM Initialization");
|
| 1732 |
|
|
return -EIO;
|
| 1733 |
|
|
}
|
| 1734 |
|
|
|
| 1735 |
|
|
printk
|
| 1736 |
|
|
("aztcd: AZTECH, ORCHID, OKANO, WEARNES, TXC, CyDROM CD-ROM Driver\n");
|
| 1737 |
|
|
printk("aztcd: (C) 1994-98 W.Zimmermann\n");
|
| 1738 |
|
|
if (azt_port == -1) {
|
| 1739 |
|
|
printk
|
| 1740 |
|
|
("aztcd: KernelVersion=%s DriverVersion=%s For IDE/ATAPI-drives use ide-cd.c\n",
|
| 1741 |
|
|
UTS_RELEASE, AZT_VERSION);
|
| 1742 |
|
|
} else
|
| 1743 |
|
|
printk
|
| 1744 |
|
|
("aztcd: DriverVersion=%s BaseAddress=0x%x For IDE/ATAPI-drives use ide-cd.c\n",
|
| 1745 |
|
|
AZT_VERSION, azt_port);
|
| 1746 |
|
|
printk
|
| 1747 |
|
|
("aztcd: If you have problems, read /usr/src/linux/Documentation/cdrom/aztcd\n");
|
| 1748 |
|
|
|
| 1749 |
|
|
|
| 1750 |
|
|
#ifdef AZT_SW32 /*CDROM connected to Soundwave32 card */
|
| 1751 |
|
|
if ((0xFF00 & inw(AZT_SW32_ID_REG)) != 0x4500) {
|
| 1752 |
|
|
printk
|
| 1753 |
|
|
("aztcd: no Soundwave32 card detected at base:%x init:%x config:%x id:%x\n",
|
| 1754 |
|
|
AZT_SW32_BASE_ADDR, AZT_SW32_INIT,
|
| 1755 |
|
|
AZT_SW32_CONFIG_REG, AZT_SW32_ID_REG);
|
| 1756 |
|
|
return -EIO;
|
| 1757 |
|
|
} else {
|
| 1758 |
|
|
printk(KERN_INFO
|
| 1759 |
|
|
"aztcd: Soundwave32 card detected at %x Version %x\n",
|
| 1760 |
|
|
AZT_SW32_BASE_ADDR, inw(AZT_SW32_ID_REG));
|
| 1761 |
|
|
outw(AZT_SW32_INIT, AZT_SW32_CONFIG_REG);
|
| 1762 |
|
|
for (count = 0; count < 10000; count++); /*delay a bit */
|
| 1763 |
|
|
}
|
| 1764 |
|
|
#endif
|
| 1765 |
|
|
|
| 1766 |
|
|
/* check for presence of drive */
|
| 1767 |
|
|
|
| 1768 |
|
|
if (azt_port == -1) { /* autoprobing */
|
| 1769 |
|
|
for (i = 0; (azt_port_auto[i] != 0) && (i < 16); i++) {
|
| 1770 |
|
|
azt_port = azt_port_auto[i];
|
| 1771 |
|
|
printk("aztcd: Autoprobing BaseAddress=0x%x \n",
|
| 1772 |
|
|
azt_port);
|
| 1773 |
|
|
st = check_region(azt_port, 4); /*proprietary interfaces need 4 bytes */
|
| 1774 |
|
|
if (st)
|
| 1775 |
|
|
continue;
|
| 1776 |
|
|
|
| 1777 |
|
|
outb(POLLED, MODE_PORT);
|
| 1778 |
|
|
inb(CMD_PORT);
|
| 1779 |
|
|
inb(CMD_PORT);
|
| 1780 |
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
|
| 1781 |
|
|
|
| 1782 |
|
|
aztTimeOutCount = 0;
|
| 1783 |
|
|
do {
|
| 1784 |
|
|
aztIndatum = inb(STATUS_PORT);
|
| 1785 |
|
|
aztTimeOutCount++;
|
| 1786 |
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
| 1787 |
|
|
break;
|
| 1788 |
|
|
} while (aztIndatum & AFL_STATUS);
|
| 1789 |
|
|
if (inb(DATA_PORT) == AFL_OP_OK)
|
| 1790 |
|
|
break;
|
| 1791 |
|
|
}
|
| 1792 |
|
|
if ((azt_port_auto[i] == 0) || (i == 16)) {
|
| 1793 |
|
|
printk("aztcd: no AZTECH CD-ROM drive found\n");
|
| 1794 |
|
|
return -EIO;
|
| 1795 |
|
|
}
|
| 1796 |
|
|
} else { /* no autoprobing */
|
| 1797 |
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
| 1798 |
|
|
st = check_region(azt_port, 8); /*IDE-interfaces need 8 bytes */
|
| 1799 |
|
|
else
|
| 1800 |
|
|
st = check_region(azt_port, 4); /*proprietary interfaces need 4 bytes */
|
| 1801 |
|
|
if (st) {
|
| 1802 |
|
|
printk
|
| 1803 |
|
|
("aztcd: conflict, I/O port (%X) already used\n",
|
| 1804 |
|
|
azt_port);
|
| 1805 |
|
|
return -EIO;
|
| 1806 |
|
|
}
|
| 1807 |
|
|
|
| 1808 |
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
| 1809 |
|
|
SWITCH_IDE_SLAVE; /*switch IDE interface to slave configuration */
|
| 1810 |
|
|
|
| 1811 |
|
|
outb(POLLED, MODE_PORT);
|
| 1812 |
|
|
inb(CMD_PORT);
|
| 1813 |
|
|
inb(CMD_PORT);
|
| 1814 |
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*Try to get version info */
|
| 1815 |
|
|
|
| 1816 |
|
|
aztTimeOutCount = 0;
|
| 1817 |
|
|
do {
|
| 1818 |
|
|
aztIndatum = inb(STATUS_PORT);
|
| 1819 |
|
|
aztTimeOutCount++;
|
| 1820 |
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
| 1821 |
|
|
break;
|
| 1822 |
|
|
} while (aztIndatum & AFL_STATUS);
|
| 1823 |
|
|
|
| 1824 |
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? If not, reset and try again */
|
| 1825 |
|
|
#ifndef MODULE
|
| 1826 |
|
|
if (azt_cont != 0x79) {
|
| 1827 |
|
|
printk
|
| 1828 |
|
|
("aztcd: no AZTECH CD-ROM drive found-Try boot parameter aztcd=<BaseAddress>,0x79\n");
|
| 1829 |
|
|
return -EIO;
|
| 1830 |
|
|
}
|
| 1831 |
|
|
#else
|
| 1832 |
|
|
if (0) {
|
| 1833 |
|
|
}
|
| 1834 |
|
|
#endif
|
| 1835 |
|
|
else {
|
| 1836 |
|
|
printk
|
| 1837 |
|
|
("aztcd: drive reset - please wait\n");
|
| 1838 |
|
|
for (count = 0; count < 50; count++) {
|
| 1839 |
|
|
inb(STATUS_PORT); /*removing all data from earlier tries */
|
| 1840 |
|
|
inb(DATA_PORT);
|
| 1841 |
|
|
}
|
| 1842 |
|
|
outb(POLLED, MODE_PORT);
|
| 1843 |
|
|
inb(CMD_PORT);
|
| 1844 |
|
|
inb(CMD_PORT);
|
| 1845 |
|
|
getAztStatus(); /*trap errors */
|
| 1846 |
|
|
outb(ACMD_SOFT_RESET, CMD_PORT); /*send reset */
|
| 1847 |
|
|
STEN_LOW;
|
| 1848 |
|
|
if (inb(DATA_PORT) != AFL_OP_OK) { /*OP_OK? */
|
| 1849 |
|
|
printk
|
| 1850 |
|
|
("aztcd: no AZTECH CD-ROM drive found\n");
|
| 1851 |
|
|
return -EIO;
|
| 1852 |
|
|
}
|
| 1853 |
|
|
|
| 1854 |
|
|
for (count = 0; count < AZT_TIMEOUT;
|
| 1855 |
|
|
count++)
|
| 1856 |
|
|
barrier(); /* Stop gcc 2.96 being smart */
|
| 1857 |
|
|
|
| 1858 |
|
|
if ((st = getAztStatus()) == -1) {
|
| 1859 |
|
|
printk
|
| 1860 |
|
|
("aztcd: Drive Status Error Status=%x\n",
|
| 1861 |
|
|
st);
|
| 1862 |
|
|
return -EIO;
|
| 1863 |
|
|
}
|
| 1864 |
|
|
#ifdef AZT_DEBUG
|
| 1865 |
|
|
printk("aztcd: Status = %x\n", st);
|
| 1866 |
|
|
#endif
|
| 1867 |
|
|
outb(POLLED, MODE_PORT);
|
| 1868 |
|
|
inb(CMD_PORT);
|
| 1869 |
|
|
inb(CMD_PORT);
|
| 1870 |
|
|
outb(ACMD_GET_VERSION, CMD_PORT); /*GetVersion */
|
| 1871 |
|
|
STEN_LOW;
|
| 1872 |
|
|
OP_OK;
|
| 1873 |
|
|
}
|
| 1874 |
|
|
}
|
| 1875 |
|
|
}
|
| 1876 |
|
|
|
| 1877 |
|
|
azt_init_end = 1;
|
| 1878 |
|
|
STEN_LOW;
|
| 1879 |
|
|
result[0] = inb(DATA_PORT); /*reading in a null byte??? */
|
| 1880 |
|
|
for (count = 1; count < 50; count++) { /*Reading version string */
|
| 1881 |
|
|
aztTimeOutCount = 0; /*here we must implement STEN_LOW differently */
|
| 1882 |
|
|
do {
|
| 1883 |
|
|
aztIndatum = inb(STATUS_PORT); /*because we want to exit by timeout */
|
| 1884 |
|
|
aztTimeOutCount++;
|
| 1885 |
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
| 1886 |
|
|
break;
|
| 1887 |
|
|
} while (aztIndatum & AFL_STATUS);
|
| 1888 |
|
|
if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
|
| 1889 |
|
|
break; /*all chars read? */
|
| 1890 |
|
|
result[count] = inb(DATA_PORT);
|
| 1891 |
|
|
}
|
| 1892 |
|
|
if (count > 30)
|
| 1893 |
|
|
max_count = 30; /*print max.30 chars of the version string */
|
| 1894 |
|
|
else
|
| 1895 |
|
|
max_count = count;
|
| 1896 |
|
|
printk(KERN_INFO "aztcd: FirmwareVersion=");
|
| 1897 |
|
|
for (count = 1; count < max_count; count++)
|
| 1898 |
|
|
printk("%c", result[count]);
|
| 1899 |
|
|
printk("<<>> ");
|
| 1900 |
|
|
|
| 1901 |
|
|
if ((result[1] == 'A') && (result[2] == 'Z') && (result[3] == 'T')) {
|
| 1902 |
|
|
printk("AZTECH drive detected\n");
|
| 1903 |
|
|
/*AZTECH*/}
|
| 1904 |
|
|
else if ((result[2] == 'C') && (result[3] == 'D')
|
| 1905 |
|
|
&& (result[4] == 'D')) {
|
| 1906 |
|
|
printk("ORCHID or WEARNES drive detected\n"); /*ORCHID or WEARNES */
|
| 1907 |
|
|
} else if ((result[1] == 0x03) && (result[2] == '5')) {
|
| 1908 |
|
|
printk("TXC or CyCDROM drive detected\n"); /*Conrad TXC, CyCDROM */
|
| 1909 |
|
|
} else { /*OTHERS or none */
|
| 1910 |
|
|
printk("\nunknown drive or firmware version detected\n");
|
| 1911 |
|
|
printk
|
| 1912 |
|
|
("aztcd may not run stable, if you want to try anyhow,\n");
|
| 1913 |
|
|
printk("boot with: aztcd=<BaseAddress>,0x79\n");
|
| 1914 |
|
|
if ((azt_cont != 0x79)) {
|
| 1915 |
|
|
printk("aztcd: FirmwareVersion=");
|
| 1916 |
|
|
for (count = 1; count < 5; count++)
|
| 1917 |
|
|
printk("%c", result[count]);
|
| 1918 |
|
|
printk("<<>> ");
|
| 1919 |
|
|
printk("Aborted\n");
|
| 1920 |
|
|
return -EIO;
|
| 1921 |
|
|
}
|
| 1922 |
|
|
}
|
| 1923 |
|
|
devfs_register(NULL, "aztcd", DEVFS_FL_DEFAULT, MAJOR_NR, 0,
|
| 1924 |
|
|
S_IFBLK | S_IRUGO | S_IWUGO, &azt_fops, NULL);
|
| 1925 |
|
|
if (devfs_register_blkdev(MAJOR_NR, "aztcd", &azt_fops) != 0) {
|
| 1926 |
|
|
printk("aztcd: Unable to get major %d for Aztech CD-ROM\n",
|
| 1927 |
|
|
MAJOR_NR);
|
| 1928 |
|
|
return -EIO;
|
| 1929 |
|
|
}
|
| 1930 |
|
|
blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), DEVICE_REQUEST);
|
| 1931 |
|
|
blksize_size[MAJOR_NR] = aztcd_blocksizes;
|
| 1932 |
|
|
read_ahead[MAJOR_NR] = 4;
|
| 1933 |
|
|
register_disk(NULL, MKDEV(MAJOR_NR, 0), 1, &azt_fops, 0);
|
| 1934 |
|
|
|
| 1935 |
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170))
|
| 1936 |
|
|
request_region(azt_port, 8, "aztcd"); /*IDE-interface */
|
| 1937 |
|
|
else
|
| 1938 |
|
|
request_region(azt_port, 4, "aztcd"); /*proprietary interface */
|
| 1939 |
|
|
|
| 1940 |
|
|
azt_invalidate_buffers();
|
| 1941 |
|
|
aztPresent = 1;
|
| 1942 |
|
|
aztCloseDoor();
|
| 1943 |
|
|
return (0);
|
| 1944 |
|
|
}
|
| 1945 |
|
|
|
| 1946 |
|
|
void __exit aztcd_exit(void)
|
| 1947 |
|
|
{
|
| 1948 |
|
|
devfs_unregister(devfs_find_handle
|
| 1949 |
|
|
(NULL, "aztcd", 0, 0, DEVFS_SPECIAL_BLK, 0));
|
| 1950 |
|
|
if ((devfs_unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL)) {
|
| 1951 |
|
|
printk("What's that: can't unregister aztcd\n");
|
| 1952 |
|
|
return;
|
| 1953 |
|
|
}
|
| 1954 |
|
|
blk_cleanup_queue(BLK_DEFAULT_QUEUE(MAJOR_NR));
|
| 1955 |
|
|
if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
|
| 1956 |
|
|
SWITCH_IDE_MASTER;
|
| 1957 |
|
|
release_region(azt_port, 8); /*IDE-interface */
|
| 1958 |
|
|
} else
|
| 1959 |
|
|
release_region(azt_port, 4); /*proprietary interface */
|
| 1960 |
|
|
printk(KERN_INFO "aztcd module released.\n");
|
| 1961 |
|
|
}
|
| 1962 |
|
|
|
| 1963 |
|
|
#ifdef MODULE
|
| 1964 |
|
|
module_init(aztcd_init);
|
| 1965 |
|
|
#endif
|
| 1966 |
|
|
module_exit(aztcd_exit);
|
| 1967 |
|
|
|
| 1968 |
|
|
/*##########################################################################
|
| 1969 |
|
|
Aztcd State Machine: Controls Drive Operating State
|
| 1970 |
|
|
##########################################################################
|
| 1971 |
|
|
*/
|
| 1972 |
|
|
static void azt_poll(void)
|
| 1973 |
|
|
{
|
| 1974 |
|
|
int st = 0;
|
| 1975 |
|
|
int loop_ctl = 1;
|
| 1976 |
|
|
int skip = 0;
|
| 1977 |
|
|
|
| 1978 |
|
|
if (azt_error) {
|
| 1979 |
|
|
if (aztSendCmd(ACMD_GET_ERROR))
|
| 1980 |
|
|
RETURN("azt_poll 1");
|
| 1981 |
|
|
STEN_LOW;
|
| 1982 |
|
|
azt_error = inb(DATA_PORT) & 0xFF;
|
| 1983 |
|
|
printk("aztcd: I/O error 0x%02x\n", azt_error);
|
| 1984 |
|
|
azt_invalidate_buffers();
|
| 1985 |
|
|
#ifdef WARN_IF_READ_FAILURE
|
| 1986 |
|
|
if (AztTries == 5)
|
| 1987 |
|
|
printk
|
| 1988 |
|
|
("aztcd: Read of Block %d Failed - Maybe Audio Disk?\n",
|
| 1989 |
|
|
azt_next_bn);
|
| 1990 |
|
|
#endif
|
| 1991 |
|
|
if (!AztTries--) {
|
| 1992 |
|
|
printk
|
| 1993 |
|
|
("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n",
|
| 1994 |
|
|
azt_next_bn);
|
| 1995 |
|
|
if (azt_transfer_is_active) {
|
| 1996 |
|
|
AztTries = 0;
|
| 1997 |
|
|
loop_ctl = 0;
|
| 1998 |
|
|
}
|
| 1999 |
|
|
if (CURRENT_VALID)
|
| 2000 |
|
|
end_request(0);
|
| 2001 |
|
|
AztTries = 5;
|
| 2002 |
|
|
}
|
| 2003 |
|
|
azt_error = 0;
|
| 2004 |
|
|
azt_state = AZT_S_STOP;
|
| 2005 |
|
|
}
|
| 2006 |
|
|
|
| 2007 |
|
|
while (loop_ctl) {
|
| 2008 |
|
|
loop_ctl = 0; /* each case must flip this back to 1 if we want
|
| 2009 |
|
|
to come back up here */
|
| 2010 |
|
|
switch (azt_state) {
|
| 2011 |
|
|
|
| 2012 |
|
|
case AZT_S_IDLE:
|
| 2013 |
|
|
#ifdef AZT_TEST3
|
| 2014 |
|
|
if (azt_state != azt_state_old) {
|
| 2015 |
|
|
azt_state_old = azt_state;
|
| 2016 |
|
|
printk("AZT_S_IDLE\n");
|
| 2017 |
|
|
}
|
| 2018 |
|
|
#endif
|
| 2019 |
|
|
return;
|
| 2020 |
|
|
|
| 2021 |
|
|
case AZT_S_START:
|
| 2022 |
|
|
#ifdef AZT_TEST3
|
| 2023 |
|
|
if (azt_state != azt_state_old) {
|
| 2024 |
|
|
azt_state_old = azt_state;
|
| 2025 |
|
|
printk("AZT_S_START\n");
|
| 2026 |
|
|
}
|
| 2027 |
|
|
#endif
|
| 2028 |
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
| 2029 |
|
|
RETURN("azt_poll 2"); /*result will be checked by aztStatus() */
|
| 2030 |
|
|
azt_state =
|
| 2031 |
|
|
azt_mode == 1 ? AZT_S_READ : AZT_S_MODE;
|
| 2032 |
|
|
AztTimeout = 3000;
|
| 2033 |
|
|
break;
|
| 2034 |
|
|
|
| 2035 |
|
|
case AZT_S_MODE:
|
| 2036 |
|
|
#ifdef AZT_TEST3
|
| 2037 |
|
|
if (azt_state != azt_state_old) {
|
| 2038 |
|
|
azt_state_old = azt_state;
|
| 2039 |
|
|
printk("AZT_S_MODE\n");
|
| 2040 |
|
|
}
|
| 2041 |
|
|
#endif
|
| 2042 |
|
|
if (!skip) {
|
| 2043 |
|
|
if ((st = aztStatus()) != -1) {
|
| 2044 |
|
|
if ((st & AST_DSK_CHG)
|
| 2045 |
|
|
|| (st & AST_NOT_READY)) {
|
| 2046 |
|
|
aztDiskChanged = 1;
|
| 2047 |
|
|
aztTocUpToDate = 0;
|
| 2048 |
|
|
azt_invalidate_buffers();
|
| 2049 |
|
|
end_request(0);
|
| 2050 |
|
|
printk
|
| 2051 |
|
|
("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
|
| 2052 |
|
|
}
|
| 2053 |
|
|
} else
|
| 2054 |
|
|
break;
|
| 2055 |
|
|
}
|
| 2056 |
|
|
skip = 0;
|
| 2057 |
|
|
|
| 2058 |
|
|
if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
|
| 2059 |
|
|
aztDiskChanged = 1;
|
| 2060 |
|
|
aztTocUpToDate = 0;
|
| 2061 |
|
|
printk
|
| 2062 |
|
|
("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
|
| 2063 |
|
|
end_request(0);
|
| 2064 |
|
|
printk((st & AST_DOOR_OPEN) ?
|
| 2065 |
|
|
"aztcd: door open\n" :
|
| 2066 |
|
|
"aztcd: disk removed\n");
|
| 2067 |
|
|
if (azt_transfer_is_active) {
|
| 2068 |
|
|
azt_state = AZT_S_START;
|
| 2069 |
|
|
loop_ctl = 1; /* goto immediately */
|
| 2070 |
|
|
break;
|
| 2071 |
|
|
}
|
| 2072 |
|
|
azt_state = AZT_S_IDLE;
|
| 2073 |
|
|
while (CURRENT_VALID)
|
| 2074 |
|
|
end_request(0);
|
| 2075 |
|
|
return;
|
| 2076 |
|
|
}
|
| 2077 |
|
|
|
| 2078 |
|
|
/* if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
|
| 2079 |
|
|
outb(0x01, DATA_PORT);
|
| 2080 |
|
|
PA_OK;
|
| 2081 |
|
|
STEN_LOW;
|
| 2082 |
|
|
*/
|
| 2083 |
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
| 2084 |
|
|
RETURN("azt_poll 4");
|
| 2085 |
|
|
STEN_LOW;
|
| 2086 |
|
|
azt_mode = 1;
|
| 2087 |
|
|
azt_state = AZT_S_READ;
|
| 2088 |
|
|
AztTimeout = 3000;
|
| 2089 |
|
|
|
| 2090 |
|
|
break;
|
| 2091 |
|
|
|
| 2092 |
|
|
|
| 2093 |
|
|
case AZT_S_READ:
|
| 2094 |
|
|
#ifdef AZT_TEST3
|
| 2095 |
|
|
if (azt_state != azt_state_old) {
|
| 2096 |
|
|
azt_state_old = azt_state;
|
| 2097 |
|
|
printk("AZT_S_READ\n");
|
| 2098 |
|
|
}
|
| 2099 |
|
|
#endif
|
| 2100 |
|
|
if (!skip) {
|
| 2101 |
|
|
if ((st = aztStatus()) != -1) {
|
| 2102 |
|
|
if ((st & AST_DSK_CHG)
|
| 2103 |
|
|
|| (st & AST_NOT_READY)) {
|
| 2104 |
|
|
aztDiskChanged = 1;
|
| 2105 |
|
|
aztTocUpToDate = 0;
|
| 2106 |
|
|
azt_invalidate_buffers();
|
| 2107 |
|
|
printk
|
| 2108 |
|
|
("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
|
| 2109 |
|
|
end_request(0);
|
| 2110 |
|
|
}
|
| 2111 |
|
|
} else
|
| 2112 |
|
|
break;
|
| 2113 |
|
|
}
|
| 2114 |
|
|
|
| 2115 |
|
|
skip = 0;
|
| 2116 |
|
|
if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
|
| 2117 |
|
|
aztDiskChanged = 1;
|
| 2118 |
|
|
aztTocUpToDate = 0;
|
| 2119 |
|
|
printk((st & AST_DOOR_OPEN) ?
|
| 2120 |
|
|
"aztcd: door open\n" :
|
| 2121 |
|
|
"aztcd: disk removed\n");
|
| 2122 |
|
|
if (azt_transfer_is_active) {
|
| 2123 |
|
|
azt_state = AZT_S_START;
|
| 2124 |
|
|
loop_ctl = 1;
|
| 2125 |
|
|
break;
|
| 2126 |
|
|
}
|
| 2127 |
|
|
azt_state = AZT_S_IDLE;
|
| 2128 |
|
|
while (CURRENT_VALID)
|
| 2129 |
|
|
end_request(0);
|
| 2130 |
|
|
return;
|
| 2131 |
|
|
}
|
| 2132 |
|
|
|
| 2133 |
|
|
if (CURRENT_VALID) {
|
| 2134 |
|
|
struct azt_Play_msf msf;
|
| 2135 |
|
|
int i;
|
| 2136 |
|
|
azt_next_bn = CURRENT->sector / 4;
|
| 2137 |
|
|
azt_hsg2msf(azt_next_bn, &msf.start);
|
| 2138 |
|
|
i = 0;
|
| 2139 |
|
|
/* find out in which track we are */
|
| 2140 |
|
|
while (azt_msf2hsg(&msf.start) >
|
| 2141 |
|
|
azt_msf2hsg(&Toc[++i].trackTime)) {
|
| 2142 |
|
|
};
|
| 2143 |
|
|
if (azt_msf2hsg(&msf.start) <
|
| 2144 |
|
|
azt_msf2hsg(&Toc[i].trackTime) -
|
| 2145 |
|
|
AZT_BUF_SIZ) {
|
| 2146 |
|
|
azt_read_count = AZT_BUF_SIZ; /*fast, because we read ahead */
|
| 2147 |
|
|
/*azt_read_count=CURRENT->nr_sectors; slow, no read ahead */
|
| 2148 |
|
|
} else /* don't read beyond end of track */
|
| 2149 |
|
|
#if AZT_MULTISESSION
|
| 2150 |
|
|
{
|
| 2151 |
|
|
azt_read_count =
|
| 2152 |
|
|
(azt_msf2hsg(&Toc[i].trackTime)
|
| 2153 |
|
|
/ 4) * 4 -
|
| 2154 |
|
|
azt_msf2hsg(&msf.start);
|
| 2155 |
|
|
if (azt_read_count < 0)
|
| 2156 |
|
|
azt_read_count = 0;
|
| 2157 |
|
|
if (azt_read_count > AZT_BUF_SIZ)
|
| 2158 |
|
|
azt_read_count =
|
| 2159 |
|
|
AZT_BUF_SIZ;
|
| 2160 |
|
|
printk
|
| 2161 |
|
|
("aztcd: warning - trying to read beyond end of track\n");
|
| 2162 |
|
|
/* printk("%i %i %li %li\n",i,azt_read_count,azt_msf2hsg(&msf.start),azt_msf2hsg(&Toc[i].trackTime));
|
| 2163 |
|
|
*/ }
|
| 2164 |
|
|
#else
|
| 2165 |
|
|
{
|
| 2166 |
|
|
azt_read_count = AZT_BUF_SIZ;
|
| 2167 |
|
|
}
|
| 2168 |
|
|
#endif
|
| 2169 |
|
|
msf.end.min = 0;
|
| 2170 |
|
|
msf.end.sec = 0;
|
| 2171 |
|
|
msf.end.frame = azt_read_count; /*Mitsumi here reads 0xffffff sectors */
|
| 2172 |
|
|
#ifdef AZT_TEST3
|
| 2173 |
|
|
printk
|
| 2174 |
|
|
("---reading msf-address %x:%x:%x %x:%x:%x\n",
|
| 2175 |
|
|
msf.start.min, msf.start.sec,
|
| 2176 |
|
|
msf.start.frame, msf.end.min,
|
| 2177 |
|
|
msf.end.sec, msf.end.frame);
|
| 2178 |
|
|
printk
|
| 2179 |
|
|
("azt_next_bn:%x azt_buf_in:%x azt_buf_out:%x azt_buf_bn:%x\n",
|
| 2180 |
|
|
azt_next_bn, azt_buf_in, azt_buf_out,
|
| 2181 |
|
|
azt_buf_bn[azt_buf_in]);
|
| 2182 |
|
|
#endif
|
| 2183 |
|
|
if (azt_read_mode == AZT_MODE_2) {
|
| 2184 |
|
|
sendAztCmd(ACMD_PLAY_READ_RAW, &msf); /*XA disks in raw mode */
|
| 2185 |
|
|
} else {
|
| 2186 |
|
|
sendAztCmd(ACMD_PLAY_READ, &msf); /*others in cooked mode */
|
| 2187 |
|
|
}
|
| 2188 |
|
|
azt_state = AZT_S_DATA;
|
| 2189 |
|
|
AztTimeout = READ_TIMEOUT;
|
| 2190 |
|
|
} else {
|
| 2191 |
|
|
azt_state = AZT_S_STOP;
|
| 2192 |
|
|
loop_ctl = 1;
|
| 2193 |
|
|
break;
|
| 2194 |
|
|
}
|
| 2195 |
|
|
|
| 2196 |
|
|
break;
|
| 2197 |
|
|
|
| 2198 |
|
|
|
| 2199 |
|
|
case AZT_S_DATA:
|
| 2200 |
|
|
#ifdef AZT_TEST3
|
| 2201 |
|
|
if (azt_state != azt_state_old) {
|
| 2202 |
|
|
azt_state_old = azt_state;
|
| 2203 |
|
|
printk("AZT_S_DATA\n");
|
| 2204 |
|
|
}
|
| 2205 |
|
|
#endif
|
| 2206 |
|
|
|
| 2207 |
|
|
st = inb(STATUS_PORT) & AFL_STATUSorDATA;
|
| 2208 |
|
|
|
| 2209 |
|
|
switch (st) {
|
| 2210 |
|
|
|
| 2211 |
|
|
case AFL_DATA:
|
| 2212 |
|
|
#ifdef AZT_TEST3
|
| 2213 |
|
|
if (st != azt_st_old) {
|
| 2214 |
|
|
azt_st_old = st;
|
| 2215 |
|
|
printk("---AFL_DATA st:%x\n", st);
|
| 2216 |
|
|
}
|
| 2217 |
|
|
#endif
|
| 2218 |
|
|
if (!AztTries--) {
|
| 2219 |
|
|
printk
|
| 2220 |
|
|
("aztcd: Read of Block %d Failed, Maybe Audio Disk ? Giving up\n",
|
| 2221 |
|
|
azt_next_bn);
|
| 2222 |
|
|
if (azt_transfer_is_active) {
|
| 2223 |
|
|
AztTries = 0;
|
| 2224 |
|
|
break;
|
| 2225 |
|
|
}
|
| 2226 |
|
|
if (CURRENT_VALID)
|
| 2227 |
|
|
end_request(0);
|
| 2228 |
|
|
AztTries = 5;
|
| 2229 |
|
|
}
|
| 2230 |
|
|
azt_state = AZT_S_START;
|
| 2231 |
|
|
AztTimeout = READ_TIMEOUT;
|
| 2232 |
|
|
loop_ctl = 1;
|
| 2233 |
|
|
break;
|
| 2234 |
|
|
|
| 2235 |
|
|
case AFL_STATUSorDATA:
|
| 2236 |
|
|
#ifdef AZT_TEST3
|
| 2237 |
|
|
if (st != azt_st_old) {
|
| 2238 |
|
|
azt_st_old = st;
|
| 2239 |
|
|
printk
|
| 2240 |
|
|
("---AFL_STATUSorDATA st:%x\n",
|
| 2241 |
|
|
st);
|
| 2242 |
|
|
}
|
| 2243 |
|
|
#endif
|
| 2244 |
|
|
break;
|
| 2245 |
|
|
|
| 2246 |
|
|
default:
|
| 2247 |
|
|
#ifdef AZT_TEST3
|
| 2248 |
|
|
if (st != azt_st_old) {
|
| 2249 |
|
|
azt_st_old = st;
|
| 2250 |
|
|
printk("---default: st:%x\n", st);
|
| 2251 |
|
|
}
|
| 2252 |
|
|
#endif
|
| 2253 |
|
|
AztTries = 5;
|
| 2254 |
|
|
if (!CURRENT_VALID
|
| 2255 |
|
|
&& azt_buf_in == azt_buf_out) {
|
| 2256 |
|
|
azt_state = AZT_S_STOP;
|
| 2257 |
|
|
loop_ctl = 1;
|
| 2258 |
|
|
break;
|
| 2259 |
|
|
}
|
| 2260 |
|
|
if (azt_read_count <= 0)
|
| 2261 |
|
|
printk
|
| 2262 |
|
|
("aztcd: warning - try to read 0 frames\n");
|
| 2263 |
|
|
while (azt_read_count) { /*??? fast read ahead loop */
|
| 2264 |
|
|
azt_buf_bn[azt_buf_in] = -1;
|
| 2265 |
|
|
DTEN_LOW; /*??? unsolved problem, very
|
| 2266 |
|
|
seldom we get timeouts
|
| 2267 |
|
|
here, don't now the real
|
| 2268 |
|
|
reason. With my drive this
|
| 2269 |
|
|
sometimes also happens with
|
| 2270 |
|
|
Aztech's original driver under
|
| 2271 |
|
|
DOS. Is it a hardware bug?
|
| 2272 |
|
|
I tried to recover from such
|
| 2273 |
|
|
situations here. Zimmermann */
|
| 2274 |
|
|
if (aztTimeOutCount >= AZT_TIMEOUT) {
|
| 2275 |
|
|
printk
|
| 2276 |
|
|
("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n",
|
| 2277 |
|
|
azt_read_count,
|
| 2278 |
|
|
CURRENT->nr_sectors,
|
| 2279 |
|
|
azt_buf_in);
|
| 2280 |
|
|
printk
|
| 2281 |
|
|
("azt_transfer_is_active:%x\n",
|
| 2282 |
|
|
azt_transfer_is_active);
|
| 2283 |
|
|
azt_read_count = 0;
|
| 2284 |
|
|
azt_state = AZT_S_STOP;
|
| 2285 |
|
|
loop_ctl = 1;
|
| 2286 |
|
|
end_request(1); /*should we have here (1) or (0)? */
|
| 2287 |
|
|
} else {
|
| 2288 |
|
|
if (azt_read_mode ==
|
| 2289 |
|
|
AZT_MODE_2) {
|
| 2290 |
|
|
insb(DATA_PORT,
|
| 2291 |
|
|
azt_buf +
|
| 2292 |
|
|
CD_FRAMESIZE_RAW
|
| 2293 |
|
|
* azt_buf_in,
|
| 2294 |
|
|
CD_FRAMESIZE_RAW);
|
| 2295 |
|
|
} else {
|
| 2296 |
|
|
insb(DATA_PORT,
|
| 2297 |
|
|
azt_buf +
|
| 2298 |
|
|
CD_FRAMESIZE *
|
| 2299 |
|
|
azt_buf_in,
|
| 2300 |
|
|
CD_FRAMESIZE);
|
| 2301 |
|
|
}
|
| 2302 |
|
|
azt_read_count--;
|
| 2303 |
|
|
#ifdef AZT_TEST3
|
| 2304 |
|
|
printk
|
| 2305 |
|
|
("AZT_S_DATA; ---I've read data- read_count: %d\n",
|
| 2306 |
|
|
azt_read_count);
|
| 2307 |
|
|
printk
|
| 2308 |
|
|
("azt_next_bn:%d azt_buf_in:%d azt_buf_out:%d azt_buf_bn:%d\n",
|
| 2309 |
|
|
azt_next_bn,
|
| 2310 |
|
|
azt_buf_in,
|
| 2311 |
|
|
azt_buf_out,
|
| 2312 |
|
|
azt_buf_bn
|
| 2313 |
|
|
[azt_buf_in]);
|
| 2314 |
|
|
#endif
|
| 2315 |
|
|
azt_buf_bn[azt_buf_in] =
|
| 2316 |
|
|
azt_next_bn++;
|
| 2317 |
|
|
if (azt_buf_out == -1)
|
| 2318 |
|
|
azt_buf_out =
|
| 2319 |
|
|
azt_buf_in;
|
| 2320 |
|
|
azt_buf_in =
|
| 2321 |
|
|
azt_buf_in + 1 ==
|
| 2322 |
|
|
AZT_BUF_SIZ ? 0 :
|
| 2323 |
|
|
azt_buf_in + 1;
|
| 2324 |
|
|
}
|
| 2325 |
|
|
}
|
| 2326 |
|
|
if (!azt_transfer_is_active) {
|
| 2327 |
|
|
while (CURRENT_VALID) {
|
| 2328 |
|
|
azt_transfer();
|
| 2329 |
|
|
if (CURRENT->nr_sectors ==
|
| 2330 |
|
|
0)
|
| 2331 |
|
|
end_request(1);
|
| 2332 |
|
|
else
|
| 2333 |
|
|
break;
|
| 2334 |
|
|
}
|
| 2335 |
|
|
}
|
| 2336 |
|
|
|
| 2337 |
|
|
if (CURRENT_VALID
|
| 2338 |
|
|
&& (CURRENT->sector / 4 < azt_next_bn
|
| 2339 |
|
|
|| CURRENT->sector / 4 >
|
| 2340 |
|
|
azt_next_bn + AZT_BUF_SIZ)) {
|
| 2341 |
|
|
azt_state = AZT_S_STOP;
|
| 2342 |
|
|
loop_ctl = 1;
|
| 2343 |
|
|
break;
|
| 2344 |
|
|
}
|
| 2345 |
|
|
AztTimeout = READ_TIMEOUT;
|
| 2346 |
|
|
if (azt_read_count == 0) {
|
| 2347 |
|
|
azt_state = AZT_S_STOP;
|
| 2348 |
|
|
loop_ctl = 1;
|
| 2349 |
|
|
break;
|
| 2350 |
|
|
}
|
| 2351 |
|
|
break;
|
| 2352 |
|
|
}
|
| 2353 |
|
|
break;
|
| 2354 |
|
|
|
| 2355 |
|
|
|
| 2356 |
|
|
case AZT_S_STOP:
|
| 2357 |
|
|
#ifdef AZT_TEST3
|
| 2358 |
|
|
if (azt_state != azt_state_old) {
|
| 2359 |
|
|
azt_state_old = azt_state;
|
| 2360 |
|
|
printk("AZT_S_STOP\n");
|
| 2361 |
|
|
}
|
| 2362 |
|
|
#endif
|
| 2363 |
|
|
if (azt_read_count != 0)
|
| 2364 |
|
|
printk("aztcd: discard data=%x frames\n",
|
| 2365 |
|
|
azt_read_count);
|
| 2366 |
|
|
while (azt_read_count != 0) {
|
| 2367 |
|
|
int i;
|
| 2368 |
|
|
if (!(inb(STATUS_PORT) & AFL_DATA)) {
|
| 2369 |
|
|
if (azt_read_mode == AZT_MODE_2)
|
| 2370 |
|
|
for (i = 0;
|
| 2371 |
|
|
i < CD_FRAMESIZE_RAW;
|
| 2372 |
|
|
i++)
|
| 2373 |
|
|
inb(DATA_PORT);
|
| 2374 |
|
|
else
|
| 2375 |
|
|
for (i = 0;
|
| 2376 |
|
|
i < CD_FRAMESIZE; i++)
|
| 2377 |
|
|
inb(DATA_PORT);
|
| 2378 |
|
|
}
|
| 2379 |
|
|
azt_read_count--;
|
| 2380 |
|
|
}
|
| 2381 |
|
|
if (aztSendCmd(ACMD_GET_STATUS))
|
| 2382 |
|
|
RETURN("azt_poll 5");
|
| 2383 |
|
|
azt_state = AZT_S_STOPPING;
|
| 2384 |
|
|
AztTimeout = 1000;
|
| 2385 |
|
|
break;
|
| 2386 |
|
|
|
| 2387 |
|
|
case AZT_S_STOPPING:
|
| 2388 |
|
|
#ifdef AZT_TEST3
|
| 2389 |
|
|
if (azt_state != azt_state_old) {
|
| 2390 |
|
|
azt_state_old = azt_state;
|
| 2391 |
|
|
printk("AZT_S_STOPPING\n");
|
| 2392 |
|
|
}
|
| 2393 |
|
|
#endif
|
| 2394 |
|
|
|
| 2395 |
|
|
if ((st = aztStatus()) == -1 && AztTimeout)
|
| 2396 |
|
|
break;
|
| 2397 |
|
|
|
| 2398 |
|
|
if ((st != -1)
|
| 2399 |
|
|
&& ((st & AST_DSK_CHG)
|
| 2400 |
|
|
|| (st & AST_NOT_READY))) {
|
| 2401 |
|
|
aztDiskChanged = 1;
|
| 2402 |
|
|
aztTocUpToDate = 0;
|
| 2403 |
|
|
azt_invalidate_buffers();
|
| 2404 |
|
|
printk
|
| 2405 |
|
|
("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
|
| 2406 |
|
|
end_request(0);
|
| 2407 |
|
|
}
|
| 2408 |
|
|
|
| 2409 |
|
|
#ifdef AZT_TEST3
|
| 2410 |
|
|
printk("CURRENT_VALID %d azt_mode %d\n",
|
| 2411 |
|
|
CURRENT_VALID, azt_mode);
|
| 2412 |
|
|
#endif
|
| 2413 |
|
|
|
| 2414 |
|
|
if (CURRENT_VALID) {
|
| 2415 |
|
|
if (st != -1) {
|
| 2416 |
|
|
if (azt_mode == 1) {
|
| 2417 |
|
|
azt_state = AZT_S_READ;
|
| 2418 |
|
|
loop_ctl = 1;
|
| 2419 |
|
|
skip = 1;
|
| 2420 |
|
|
break;
|
| 2421 |
|
|
} else {
|
| 2422 |
|
|
azt_state = AZT_S_MODE;
|
| 2423 |
|
|
loop_ctl = 1;
|
| 2424 |
|
|
skip = 1;
|
| 2425 |
|
|
break;
|
| 2426 |
|
|
}
|
| 2427 |
|
|
} else {
|
| 2428 |
|
|
azt_state = AZT_S_START;
|
| 2429 |
|
|
AztTimeout = 1;
|
| 2430 |
|
|
}
|
| 2431 |
|
|
} else {
|
| 2432 |
|
|
azt_state = AZT_S_IDLE;
|
| 2433 |
|
|
return;
|
| 2434 |
|
|
}
|
| 2435 |
|
|
break;
|
| 2436 |
|
|
|
| 2437 |
|
|
default:
|
| 2438 |
|
|
printk("aztcd: invalid state %d\n", azt_state);
|
| 2439 |
|
|
return;
|
| 2440 |
|
|
} /* case */
|
| 2441 |
|
|
} /* while */
|
| 2442 |
|
|
|
| 2443 |
|
|
|
| 2444 |
|
|
if (!AztTimeout--) {
|
| 2445 |
|
|
printk("aztcd: timeout in state %d\n", azt_state);
|
| 2446 |
|
|
azt_state = AZT_S_STOP;
|
| 2447 |
|
|
if (aztSendCmd(ACMD_STOP))
|
| 2448 |
|
|
RETURN("azt_poll 6");
|
| 2449 |
|
|
STEN_LOW_WAIT;
|
| 2450 |
|
|
};
|
| 2451 |
|
|
|
| 2452 |
|
|
SET_TIMER(azt_poll, HZ / 100);
|
| 2453 |
|
|
}
|
| 2454 |
|
|
|
| 2455 |
|
|
|
| 2456 |
|
|
/*###########################################################################
|
| 2457 |
|
|
* Miscellaneous support functions
|
| 2458 |
|
|
###########################################################################
|
| 2459 |
|
|
*/
|
| 2460 |
|
|
static void azt_hsg2msf(long hsg, struct msf *msf)
|
| 2461 |
|
|
{
|
| 2462 |
|
|
hsg += 150;
|
| 2463 |
|
|
msf->min = hsg / 4500;
|
| 2464 |
|
|
hsg %= 4500;
|
| 2465 |
|
|
msf->sec = hsg / 75;
|
| 2466 |
|
|
msf->frame = hsg % 75;
|
| 2467 |
|
|
#ifdef AZT_DEBUG
|
| 2468 |
|
|
if (msf->min >= 70)
|
| 2469 |
|
|
printk("aztcd: Error hsg2msf address Minutes\n");
|
| 2470 |
|
|
if (msf->sec >= 60)
|
| 2471 |
|
|
printk("aztcd: Error hsg2msf address Seconds\n");
|
| 2472 |
|
|
if (msf->frame >= 75)
|
| 2473 |
|
|
printk("aztcd: Error hsg2msf address Frames\n");
|
| 2474 |
|
|
#endif
|
| 2475 |
|
|
azt_bin2bcd(&msf->min); /* convert to BCD */
|
| 2476 |
|
|
azt_bin2bcd(&msf->sec);
|
| 2477 |
|
|
azt_bin2bcd(&msf->frame);
|
| 2478 |
|
|
}
|
| 2479 |
|
|
|
| 2480 |
|
|
static long azt_msf2hsg(struct msf *mp)
|
| 2481 |
|
|
{
|
| 2482 |
|
|
return azt_bcd2bin(mp->frame) + azt_bcd2bin(mp->sec) * 75
|
| 2483 |
|
|
+ azt_bcd2bin(mp->min) * 4500 - CD_MSF_OFFSET;
|
| 2484 |
|
|
}
|
| 2485 |
|
|
|
| 2486 |
|
|
static void azt_bin2bcd(unsigned char *p)
|
| 2487 |
|
|
{
|
| 2488 |
|
|
int u, t;
|
| 2489 |
|
|
|
| 2490 |
|
|
u = *p % 10;
|
| 2491 |
|
|
t = *p / 10;
|
| 2492 |
|
|
*p = u | (t << 4);
|
| 2493 |
|
|
}
|
| 2494 |
|
|
|
| 2495 |
|
|
static int azt_bcd2bin(unsigned char bcd)
|
| 2496 |
|
|
{
|
| 2497 |
|
|
return (bcd >> 4) * 10 + (bcd & 0xF);
|
| 2498 |
|
|
}
|
| 2499 |
|
|
|
| 2500 |
|
|
MODULE_LICENSE("GPL");
|
| 2501 |
|
|
EXPORT_NO_SYMBOLS;
|
