Remove legacy CDROM drivers

They are all broken beyond repair. Given that nobody has complained
about them (most haven't worked in 2.6 AT ALL), remove them from the
tree.

A new mitsumi driver that actually works is in progress, it'll get
added when completed.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 0 insertions, 2492 deletions

diff --git a/drivers/cdrom/aztcd.c b/drivers/cdrom/aztcd.c
deleted file mode 100644
index d7fbfaae2449..000000000000
--- a/drivers/cdrom/aztcd.c
+++ /dev/null
@@ -1,2492 +0,0 @@
-#define AZT_VERSION "2.60"
-
-/*      $Id: aztcd.c,v 2.60 1997/11/29 09:51:19 root Exp root $
-	linux/drivers/block/aztcd.c - Aztech CD268 CDROM driver
-
-	Copyright (C) 1994-98 Werner Zimmermann(Werner.Zimmermann@fht-esslingen.de)
-
-	based on Mitsumi CDROM driver by  Martin Hariss and preworks by
-	Eberhard Moenkeberg; contains contributions by Joe Nardone and Robby 
-	Schirmer.
-
-	This program is free software; you can redistribute it and/or modify
-	it under the terms of the GNU General Public License as published by
-	the Free Software Foundation; either version 2, or (at your option)
-	any later version.
-
-	This program is distributed in the hope that it will be useful,
-	but WITHOUT ANY WARRANTY; without even the implied warranty of
-	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-	GNU General Public License for more details.
-
-	You should have received a copy of the GNU General Public License
-	along with this program; if not, write to the Free Software
-	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-	HISTORY
-	V0.0    Adaption to Aztech CD268-01A Version 1.3
-		Version is PRE_ALPHA, unresolved points:
-		1. I use busy wait instead of timer wait in STEN_LOW,DTEN_LOW
-		   thus driver causes CPU overhead and is very slow 
-		2. could not find a way to stop the drive, when it is
-		   in data read mode, therefore I had to set
-		   msf.end.min/sec/frame to 0:0:1 (in azt_poll); so only one
-		   frame can be read in sequence, this is also the reason for
-		3. getting 'timeout in state 4' messages, but nevertheless
-		   it works
-		W.Zimmermann, Oct. 31, 1994
-	V0.1    Version is ALPHA, problems #2 and #3 resolved.  
-		W.Zimmermann, Nov. 3, 1994
-	V0.2    Modification to some comments, debugging aids for partial test
-		with Borland C under DOS eliminated. Timer interrupt wait 
-		STEN_LOW_WAIT additionally to busy wait for STEN_LOW implemented; 
-		use it only for the 'slow' commands (ACMD_GET_Q_CHANNEL, ACMD_
-		SEEK_TO_LEAD_IN), all other commands are so 'fast', that busy 
-		waiting seems better to me than interrupt rescheduling.
-		Besides that, when used in the wrong place, STEN_LOW_WAIT causes
-		kernel panic.
-		In function aztPlay command ACMD_PLAY_AUDIO added, should make
-		audio functions work. The Aztech drive needs different commands
-		to read data tracks and play audio tracks.
-		W.Zimmermann, Nov. 8, 1994
-	V0.3    Recognition of missing drive during boot up improved (speeded up).
-		W.Zimmermann, Nov. 13, 1994
-	V0.35   Rewrote the control mechanism in azt_poll (formerly mcd_poll) 
-		including removal of all 'goto' commands. :-); 
-		J. Nardone, Nov. 14, 1994
-	V0.4    Renamed variables and constants to 'azt' instead of 'mcd'; had
-		to make some "compatibility" defines in azt.h; please note,
-		that the source file was renamed to azt.c, the include file to
-		azt.h                
-		Speeded up drive recognition during init (will be a little bit 
-		slower than before if no drive is installed!); suggested by
-		Robby Schirmer.
-		read_count declared volatile and set to AZT_BUF_SIZ to make
-		drive faster (now 300kB/sec, was 60kB/sec before, measured
-		by 'time dd if=/dev/cdrom of=/dev/null bs=2048 count=4096';
-		different AZT_BUF_SIZes were test, above 16 no further im-
-		provement seems to be possible; suggested by E.Moenkeberg.
-		W.Zimmermann, Nov. 18, 1994
-	V0.42   Included getAztStatus command in GetQChannelInfo() to allow
-		reading Q-channel info on audio disks, if drive is stopped, 
-		and some other bug fixes in the audio stuff, suggested by 
-		Robby Schirmer.
-		Added more ioctls (reading data in mode 1 and mode 2).
-		Completely removed the old azt_poll() routine.
-		Detection of ORCHID CDS-3110 in aztcd_init implemented.
-		Additional debugging aids (see the readme file).
-		W.Zimmermann, Dec. 9, 1994  
-	V0.50   Autodetection of drives implemented.
-		W.Zimmermann, Dec. 12, 1994
-	V0.52   Prepared for including in the standard kernel, renamed most
-		variables to contain 'azt', included autoconf.h
-		W.Zimmermann, Dec. 16, 1994        
-	V0.6    Version for being included in the standard Linux kernel.
-		Renamed source and header file to aztcd.c and aztcd.h
-		W.Zimmermann, Dec. 24, 1994
-	V0.7    Changed VERIFY_READ to VERIFY_WRITE in aztcd_ioctl, case
-		CDROMREADMODE1 and CDROMREADMODE2; bug fix in the ioctl,
-		which causes kernel crashes when playing audio, changed 
-		include-files (config.h instead of autoconf.h, removed
-		delay.h)
-		W.Zimmermann, Jan. 8, 1995
-	V0.72   Some more modifications for adaption to the standard kernel.
-		W.Zimmermann, Jan. 16, 1995
-        V0.80   aztcd is now part of the standard kernel since version 1.1.83.
-                Modified the SET_TIMER and CLEAR_TIMER macros to comply with
-                the new timer scheme.
-                W.Zimmermann, Jan. 21, 1995
-        V0.90   Included CDROMVOLCTRL, but with my Aztech drive I can only turn
-                the channels on and off. If it works better with your drive, 
-                please mail me. Also implemented ACMD_CLOSE for CDROMSTART.
-                W.Zimmermann, Jan. 24, 1995
-        V1.00   Implemented close and lock tray commands. Patches supplied by
-		Frank Racis        
-                Added support for loadable MODULEs, so aztcd can now also be
-                loaded by insmod and removed by rmmod during run time
-                Werner Zimmermann, Mar. 24, 95
-        V1.10   Implemented soundcard configuration for Orchid CDS-3110 drives
-                connected to Soundwave32 cards. Release for LST 2.1.
-                (still experimental)
-                Werner Zimmermann, May 8, 95
-        V1.20   Implemented limited support for DOSEMU0.60's cdrom.c. Now it works, but
-                sometimes DOSEMU may hang for 30 seconds or so. A fully functional ver-
-                sion needs an update of Dosemu0.60's cdrom.c, which will come with the 
-                next revision of Dosemu.
-                Also Soundwave32 support now works.
-                Werner Zimmermann, May 22, 95
-	V1.30   Auto-eject feature. Inspired by Franc Racis (racis@psu.edu)
-	        Werner Zimmermann, July 4, 95
-	V1.40   Started multisession support. Implementation copied from mcdx.c
-	        by Heiko Schlittermann. Not tested yet.
-	        Werner Zimmermann, July 15, 95
-        V1.50   Implementation of ioctl CDROMRESET, continued multisession, began
-                XA, but still untested. Heavy modifications to drive status de-
-                tection.
-                Werner Zimmermann, July 25, 95
-        V1.60   XA support now should work. Speeded up drive recognition in cases, 
-                where no drive is installed.
-                Werner Zimmermann, August 8, 1995
-        V1.70   Multisession support now is completed, but there is still not 
-                enough testing done. If you can test it, please contact me. For
-                details please read Documentation/cdrom/aztcd
-                Werner Zimmermann, August 19, 1995
-        V1.80   Modification to suit the new kernel boot procedure introduced
-                with kernel 1.3.33. Will definitely not work with older kernels.
-                Programming done by Linus himself.
-                Werner Zimmermann, October 11, 1995
-	V1.90   Support for Conrad TXC drives, thank's to Jochen Kunz and Olaf Kaluza.
-	        Werner Zimmermann, October 21, 1995
-        V2.00   Changed #include "blk.h" to <linux/blk.h> as the directory
-                structure was changed. README.aztcd is now /usr/src/docu-
-                mentation/cdrom/aztcd
-                Werner Zimmermann, November 10, 95
-        V2.10   Started to modify azt_poll to prevent reading beyond end of
-                tracks.
-                Werner Zimmermann, December 3, 95
-        V2.20   Changed some comments
-                Werner Zimmermann, April 1, 96
-        V2.30   Implemented support for CyCDROM CR520, CR940, Code for CR520 
-        	delivered by H.Berger with preworks by E.Moenkeberg.
-                Werner Zimmermann, April 29, 96
-        V2.40   Reorganized the placement of functions in the source code file
-                to reflect the layered approach; did not actually change code
-                Werner Zimmermann, May 1, 96
-        V2.50   Heiko Eissfeldt suggested to remove some VERIFY_READs in 
-                aztcd_ioctl; check_aztcd_media_change modified 
-                Werner Zimmermann, May 16, 96       
-	V2.60   Implemented Auto-Probing; made changes for kernel's 2.1.xx blocksize
-                Adaption to linux kernel > 2.1.0
-		Werner Zimmermann, Nov 29, 97
-		
-        November 1999 -- Make kernel-parameter implementation work with 2.3.x 
-	                 Removed init_module & cleanup_module in favor of 
-			 module_init & module_exit.
-			 Torben Mathiasen <tmm@image.dk>
-*/
-
-#include <linux/blkdev.h>
-#include "aztcd.h"
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/timer.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/cdrom.h>
-#include <linux/ioport.h>
-#include <linux/string.h>
-#include <linux/major.h>
-
-#include <linux/init.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-
-#include <asm/uaccess.h>
-
-/*###########################################################################
-  Defines
-  ###########################################################################
-*/
-
-#define MAJOR_NR AZTECH_CDROM_MAJOR
-#define QUEUE (azt_queue)
-#define CURRENT elv_next_request(azt_queue)
-#define SET_TIMER(func, jifs)   delay_timer.expires = jiffies + (jifs); \
-                                delay_timer.function = (void *) (func); \
-                                add_timer(&delay_timer);
-
-#define CLEAR_TIMER             del_timer(&delay_timer);
-
-#define RETURNM(message,value) {printk("aztcd: Warning: %s failed\n",message);\
-                                return value;}
-#define RETURN(message)        {printk("aztcd: Warning: %s failed\n",message);\
-                                return;}
-
-/* Macros to switch the IDE-interface to the slave device and back to the master*/
-#define SWITCH_IDE_SLAVE  outb_p(0xa0,azt_port+6); \
-	                  outb_p(0x10,azt_port+6); \
-	                  outb_p(0x00,azt_port+7); \
-	                  outb_p(0x10,azt_port+6);
-#define SWITCH_IDE_MASTER outb_p(0xa0,azt_port+6);
-
-
-#if 0
-#define AZT_TEST
-#define AZT_TEST1		/* <int-..> */
-#define AZT_TEST2		/* do_aztcd_request */
-#define AZT_TEST3		/* AZT_S_state */
-#define AZT_TEST4		/* QUICK_LOOP-counter */
-#define AZT_TEST5		/* port(1) state */
-#define AZT_DEBUG
-#define AZT_DEBUG_MULTISESSION
-#endif
-
-static struct request_queue *azt_queue;
-
-static int current_valid(void)
-{
-        return CURRENT &&
-		rq_data_dir(CURRENT) == READ &&
-		CURRENT->sector != -1;
-}
-
-#define AFL_STATUSorDATA (AFL_STATUS | AFL_DATA)
-#define AZT_BUF_SIZ 16
-
-#define READ_TIMEOUT 3000
-
-#define azt_port aztcd		/*needed for the modutils */
-
-/*##########################################################################
-  Type Definitions
-  ##########################################################################
-*/
-enum azt_state_e { AZT_S_IDLE,	/* 0 */
-	AZT_S_START,		/* 1 */
-	AZT_S_MODE,		/* 2 */
-	AZT_S_READ,		/* 3 */
-	AZT_S_DATA,		/* 4 */
-	AZT_S_STOP,		/* 5 */
-	AZT_S_STOPPING		/* 6 */
-};
-enum azt_read_modes { AZT_MODE_0,	/*read mode for audio disks, not supported by Aztech firmware */
-	AZT_MODE_1,		/*read mode for normal CD-ROMs */
-	AZT_MODE_2		/*read mode for XA CD-ROMs */
-};
-
-/*##########################################################################
-  Global Variables
-  ##########################################################################
-*/
-static int aztPresent = 0;
-
-static volatile int azt_transfer_is_active = 0;
-
-static char azt_buf[CD_FRAMESIZE_RAW * AZT_BUF_SIZ];	/*buffer for block size conversion */
-#if AZT_PRIVATE_IOCTLS
-static char buf[CD_FRAMESIZE_RAW];	/*separate buffer for the ioctls */
-#endif
-
-static volatile int azt_buf_bn[AZT_BUF_SIZ], azt_next_bn;
-static volatile int azt_buf_in, azt_buf_out = -1;
-static volatile int azt_error = 0;
-static int azt_open_count = 0;
-static volatile enum azt_state_e azt_state = AZT_S_IDLE;
-#ifdef AZT_TEST3
-static volatile enum azt_state_e azt_state_old = AZT_S_STOP;
-static volatile int azt_st_old = 0;
-#endif
-static volatile enum azt_read_modes azt_read_mode = AZT_MODE_1;
-
-static int azt_mode = -1;
-static volatile int azt_read_count = 1;
-
-static int azt_port = AZT_BASE_ADDR;
-
-module_param(azt_port, int, 0);
-
-static int azt_port_auto[16] = AZT_BASE_AUTO;
-
-static char azt_cont = 0;
-static char azt_init_end = 0;
-static char azt_auto_eject = AZT_AUTO_EJECT;
-
-static int AztTimeout, AztTries;
-static DECLARE_WAIT_QUEUE_HEAD(azt_waitq);
-static DEFINE_TIMER(delay_timer, NULL, 0, 0);
-
-static struct azt_DiskInfo DiskInfo;
-static struct azt_Toc Toc[MAX_TRACKS];
-static struct azt_Play_msf azt_Play;
-
-static int aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-static char aztDiskChanged = 1;
-static char aztTocUpToDate = 0;
-
-static unsigned char aztIndatum;
-static unsigned long aztTimeOutCount;
-static int aztCmd = 0;
-
-static DEFINE_SPINLOCK(aztSpin);
-
-/*###########################################################################
-   Function Prototypes
-  ###########################################################################
-*/
-/* CDROM Drive Low Level I/O Functions */
-static void aztStatTimer(void);
-
-/* CDROM Drive Command Functions */
-static int aztGetDiskInfo(void);
-#if AZT_MULTISESSION
-static int aztGetMultiDiskInfo(void);
-#endif
-static int aztGetToc(int multi);
-
-/* Kernel Interface Functions */
-static int check_aztcd_media_change(struct gendisk *disk);
-static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
-		       unsigned long arg);
-static int aztcd_open(struct inode *ip, struct file *fp);
-static int aztcd_release(struct inode *inode, struct file *file);
-
-static struct block_device_operations azt_fops = {
-	.owner		= THIS_MODULE,
-	.open		= aztcd_open,
-	.release	= aztcd_release,
-	.ioctl		= aztcd_ioctl,
-	.media_changed	= check_aztcd_media_change,
-};
-
-/* Aztcd State Machine: Controls Drive Operating State */
-static void azt_poll(void);
-
-/* Miscellaneous support functions */
-static void azt_hsg2msf(long hsg, struct msf *msf);
-static long azt_msf2hsg(struct msf *mp);
-static void azt_bin2bcd(unsigned char *p);
-static int azt_bcd2bin(unsigned char bcd);
-
-/*##########################################################################
-  CDROM Drive Low Level I/O Functions
-  ##########################################################################
-*/
-/* Macros for the drive hardware interface handshake, these macros use
-   busy waiting */
-/* Wait for OP_OK = drive answers with AFL_OP_OK after receiving a command*/
-# define OP_OK op_ok()
-static void op_ok(void)
-{
-	aztTimeOutCount = 0;
-	do {
-		aztIndatum = inb(DATA_PORT);
-		aztTimeOutCount++;
-		if (aztTimeOutCount >= AZT_TIMEOUT) {
-			printk("aztcd: Error Wait OP_OK\n");
-			break;
-		}
-	} while (aztIndatum != AFL_OP_OK);
-}
-
-/* Wait for PA_OK = drive answers with AFL_PA_OK after receiving parameters*/
-#if 0
-# define PA_OK pa_ok()
-static void pa_ok(void)
-{
-	aztTimeOutCount = 0;
-	do {
-		aztIndatum = inb(DATA_PORT);
-		aztTimeOutCount++;
-		if (aztTimeOutCount >= AZT_TIMEOUT) {
-			printk("aztcd: Error Wait PA_OK\n");
-			break;
-		}
-	} while (aztIndatum != AFL_PA_OK);
-}
-#endif
-
-/* Wait for STEN=Low = handshake signal 'AFL_.._OK available or command executed*/
-# define STEN_LOW  sten_low()
-static void sten_low(void)
-{
-	aztTimeOutCount = 0;
-	do {
-		aztIndatum = inb(STATUS_PORT);
-		aztTimeOutCount++;
-		if (aztTimeOutCount >= AZT_TIMEOUT) {
-			if (azt_init_end)
-				printk
-				    ("aztcd: Error Wait STEN_LOW commands:%x\n",
-				     aztCmd);
-			break;
-		}
-	} while (aztIndatum & AFL_STATUS);
-}
-
-/* Wait for DTEN=Low = handshake signal 'Data available'*/
-# define DTEN_LOW dten_low()
-static void dten_low(void)
-{
-	aztTimeOutCount = 0;
-	do {
-		aztIndatum = inb(STATUS_PORT);
-		aztTimeOutCount++;
-		if (aztTimeOutCount >= AZT_TIMEOUT) {
-			printk("aztcd: Error Wait DTEN_OK\n");
-			break;
-		}
-	} while (aztIndatum & AFL_DATA);
-}
-
-/* 
- * Macro for timer wait on STEN=Low, should only be used for 'slow' commands;
- * may cause kernel panic when used in the wrong place
-*/
-#define STEN_LOW_WAIT   statusAzt()
-static void statusAzt(void)
-{
-	AztTimeout = AZT_STATUS_DELAY;
-	SET_TIMER(aztStatTimer, HZ / 100);
-	sleep_on(&azt_waitq);
-	if (AztTimeout <= 0)
-		printk("aztcd: Error Wait STEN_LOW_WAIT command:%x\n",
-		       aztCmd);
-	return;
-}
-
-static void aztStatTimer(void)
-{
-	if (!(inb(STATUS_PORT) & AFL_STATUS)) {
-		wake_up(&azt_waitq);
-		return;
-	}
-	AztTimeout--;
-	if (AztTimeout <= 0) {
-		wake_up(&azt_waitq);
-		printk("aztcd: Error aztStatTimer: Timeout\n");
-		return;
-	}
-	SET_TIMER(aztStatTimer, HZ / 100);
-}
-
-/*##########################################################################
-  CDROM Drive Command Functions
-  ##########################################################################
-*/
-/* 
- * Send a single command, return -1 on error, else 0
-*/
-static int aztSendCmd(int cmd)
-{
-	unsigned char data;
-	int retry;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: Executing command %x\n", cmd);
-#endif
-
-	if ((azt_port == 0x1f0) || (azt_port == 0x170))
-		SWITCH_IDE_SLAVE;	/*switch IDE interface to slave configuration */
-
-	aztCmd = cmd;
-	outb(POLLED, MODE_PORT);
-	do {
-		if (inb(STATUS_PORT) & AFL_STATUS)
-			break;
-		inb(DATA_PORT);	/* if status left from last command, read and */
-	} while (1);		/* discard it */
-	do {
-		if (inb(STATUS_PORT) & AFL_DATA)
-			break;
-		inb(DATA_PORT);	/* if data left from last command, read and */
-	} while (1);		/* discard it */
-	for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
-		outb((unsigned char) cmd, CMD_PORT);
-		STEN_LOW;
-		data = inb(DATA_PORT);
-		if (data == AFL_OP_OK) {
-			return 0;
-		}		/*OP_OK? */
-		if (data == AFL_OP_ERR) {
-			STEN_LOW;
-			data = inb(DATA_PORT);
-			printk
-			    ("### Error 1 aztcd: aztSendCmd %x  Error Code %x\n",
-			     cmd, data);
-		}
-	}
-	if (retry >= AZT_RETRY_ATTEMPTS) {
-		printk("### Error 2 aztcd: aztSendCmd %x \n", cmd);
-		azt_error = 0xA5;
-	}
-	RETURNM("aztSendCmd", -1);
-}
-
-/*
- * Send a play or read command to the drive, return -1 on error, else 0
-*/
-static int sendAztCmd(int cmd, struct azt_Play_msf *params)
-{
-	unsigned char data;
-	int retry;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: play start=%02x:%02x:%02x  end=%02x:%02x:%02x\n",
-	       params->start.min, params->start.sec, params->start.frame,
-	       params->end.min, params->end.sec, params->end.frame);
-#endif
-	for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
-		aztSendCmd(cmd);
-		outb(params->start.min, CMD_PORT);
-		outb(params->start.sec, CMD_PORT);
-		outb(params->start.frame, CMD_PORT);
-		outb(params->end.min, CMD_PORT);
-		outb(params->end.sec, CMD_PORT);
-		outb(params->end.frame, CMD_PORT);
-		STEN_LOW;
-		data = inb(DATA_PORT);
-		if (data == AFL_PA_OK) {
-			return 0;
-		}		/*PA_OK ? */
-		if (data == AFL_PA_ERR) {
-			STEN_LOW;
-			data = inb(DATA_PORT);
-			printk
-			    ("### Error 1 aztcd: sendAztCmd %x  Error Code %x\n",
-			     cmd, data);
-		}
-	}
-	if (retry >= AZT_RETRY_ATTEMPTS) {
-		printk("### Error 2 aztcd: sendAztCmd %x\n ", cmd);
-		azt_error = 0xA5;
-	}
-	RETURNM("sendAztCmd", -1);
-}
-
-/*
- * Send a seek command to the drive, return -1 on error, else 0
-*/
-static int aztSeek(struct azt_Play_msf *params)
-{
-	unsigned char data;
-	int retry;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: aztSeek %02x:%02x:%02x\n",
-	       params->start.min, params->start.sec, params->start.frame);
-#endif
-	for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
-		aztSendCmd(ACMD_SEEK);
-		outb(params->start.min, CMD_PORT);
-		outb(params->start.sec, CMD_PORT);
-		outb(params->start.frame, CMD_PORT);
-		STEN_LOW;
-		data = inb(DATA_PORT);
-		if (data == AFL_PA_OK) {
-			return 0;
-		}		/*PA_OK ? */
-		if (data == AFL_PA_ERR) {
-			STEN_LOW;
-			data = inb(DATA_PORT);
-			printk("### Error 1 aztcd: aztSeek\n");
-		}
-	}
-	if (retry >= AZT_RETRY_ATTEMPTS) {
-		printk("### Error 2 aztcd: aztSeek\n ");
-		azt_error = 0xA5;
-	}
-	RETURNM("aztSeek", -1);
-}
-
-/* Send a Set Disk Type command
-   does not seem to work with Aztech drives, behavior is completely indepen-
-   dent on which mode is set ???
-*/
-static int aztSetDiskType(int type)
-{
-	unsigned char data;
-	int retry;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: set disk type command: type= %i\n", type);
-#endif
-	for (retry = 0; retry < AZT_RETRY_ATTEMPTS; retry++) {
-		aztSendCmd(ACMD_SET_DISK_TYPE);
-		outb(type, CMD_PORT);
-		STEN_LOW;
-		data = inb(DATA_PORT);
-		if (data == AFL_PA_OK) {	/*PA_OK ? */
-			azt_read_mode = type;
-			return 0;
-		}
-		if (data == AFL_PA_ERR) {
-			STEN_LOW;
-			data = inb(DATA_PORT);
-			printk
-			    ("### Error 1 aztcd: aztSetDiskType %x Error Code %x\n",
-			     type, data);
-		}
-	}
-	if (retry >= AZT_RETRY_ATTEMPTS) {
-		printk("### Error 2 aztcd: aztSetDiskType %x\n ", type);
-		azt_error = 0xA5;
-	}
-	RETURNM("aztSetDiskType", -1);
-}
-
-
-/* used in azt_poll to poll the status, expects another program to issue a 
- * ACMD_GET_STATUS directly before 
- */
-static int aztStatus(void)
-{
-	int st;
-/*	int i;
-
-	i = inb(STATUS_PORT) & AFL_STATUS;    is STEN=0?    ???
-	if (!i)
-*/ STEN_LOW;
-	if (aztTimeOutCount < AZT_TIMEOUT) {
-		st = inb(DATA_PORT) & 0xFF;
-		return st;
-	} else
-		RETURNM("aztStatus", -1);
-}
-
-/*
- * Get the drive status
- */
-static int getAztStatus(void)
-{
-	int st;
-
-	if (aztSendCmd(ACMD_GET_STATUS))
-		RETURNM("getAztStatus 1", -1);
-	STEN_LOW;
-	st = inb(DATA_PORT) & 0xFF;
-#ifdef AZT_DEBUG
-	printk("aztcd: Status = %x\n", st);
-#endif
-	if ((st == 0xFF) || (st & AST_CMD_CHECK)) {
-		printk
-		    ("aztcd: AST_CMD_CHECK error or no status available\n");
-		return -1;
-	}
-
-	if (((st & AST_MODE_BITS) != AST_BUSY)
-	    && (aztAudioStatus == CDROM_AUDIO_PLAY))
-		/* XXX might be an error? look at q-channel? */
-		aztAudioStatus = CDROM_AUDIO_COMPLETED;
-
-	if ((st & AST_DSK_CHG) || (st & AST_NOT_READY)) {
-		aztDiskChanged = 1;
-		aztTocUpToDate = 0;
-		aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-	}
-	return st;
-}
-
-
-/*
- * Send a 'Play' command and get the status.  Use only from the top half.
- */
-static int aztPlay(struct azt_Play_msf *arg)
-{
-	if (sendAztCmd(ACMD_PLAY_AUDIO, arg) < 0)
-		RETURNM("aztPlay", -1);
-	return 0;
-}
-
-/*
- * Subroutines to automatically close the door (tray) and 
- * lock it closed when the cd is mounted.  Leave the tray
- * locking as an option
- */
-static void aztCloseDoor(void)
-{
-	aztSendCmd(ACMD_CLOSE);
-	STEN_LOW;
-	return;
-}
-
-static void aztLockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
-	aztSendCmd(ACMD_LOCK);
-	STEN_LOW;
-#endif
-	return;
-}
-
-static void aztUnlockDoor(void)
-{
-#if AZT_ALLOW_TRAY_LOCK
-	aztSendCmd(ACMD_UNLOCK);
-	STEN_LOW;
-#endif
-	return;
-}
-
-/*
- * Read a value from the drive.  Should return quickly, so a busy wait
- * is used to avoid excessive rescheduling. The read command itself must
- * be issued with aztSendCmd() directly before
- */
-static int aztGetValue(unsigned char *result)
-{
-	int s;
-
-	STEN_LOW;
-	if (aztTimeOutCount >= AZT_TIMEOUT) {
-		printk("aztcd: aztGetValue timeout\n");
-		return -1;
-	}
-	s = inb(DATA_PORT) & 0xFF;
-	*result = (unsigned char) s;
-	return 0;
-}
-
-/*
- * Read the current Q-channel info.  Also used for reading the
- * table of contents.
- */
-static int aztGetQChannelInfo(struct azt_Toc *qp)
-{
-	unsigned char notUsed;
-	int st;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztGetQChannelInfo  Time:%li\n", jiffies);
-#endif
-	if ((st = getAztStatus()) == -1)
-		RETURNM("aztGetQChannelInfo 1", -1);
-	if (aztSendCmd(ACMD_GET_Q_CHANNEL))
-		RETURNM("aztGetQChannelInfo 2", -1);
-	/*STEN_LOW_WAIT; ??? Dosemu0.60's cdrom.c does not like STEN_LOW_WAIT here */
-	if (aztGetValue(&notUsed))
-		RETURNM("aztGetQChannelInfo 3", -1);	/*??? Nullbyte einlesen */
-	if ((st & AST_MODE_BITS) == AST_INITIAL) {
-		qp->ctrl_addr = 0;	/* when audio stop ACMD_GET_Q_CHANNEL returns */
-		qp->track = 0;	/* only one byte with Aztech drives */
-		qp->pointIndex = 0;
-		qp->trackTime.min = 0;
-		qp->trackTime.sec = 0;
-		qp->trackTime.frame = 0;
-		qp->diskTime.min = 0;
-		qp->diskTime.sec = 0;
-		qp->diskTime.frame = 0;
-		return 0;
-	} else {
-		if (aztGetValue(&qp->ctrl_addr) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->track) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->pointIndex) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->trackTime.min) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->trackTime.sec) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->trackTime.frame) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&notUsed) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->diskTime.min) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->diskTime.sec) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-		if (aztGetValue(&qp->diskTime.frame) < 0)
-			RETURNM("aztGetQChannelInfo 4", -1);
-	}
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztGetQChannelInfo  Time:%li\n", jiffies);
-#endif
-	return 0;
-}
-
-/*
- * Read the table of contents (TOC) and TOC header if necessary
- */
-static int aztUpdateToc(void)
-{
-	int st;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztUpdateToc  Time:%li\n", jiffies);
-#endif
-	if (aztTocUpToDate)
-		return 0;
-
-	if (aztGetDiskInfo() < 0)
-		return -EIO;
-
-	if (aztGetToc(0) < 0)
-		return -EIO;
-
-	/*audio disk detection
-	   with my Aztech drive there is no audio status bit, so I use the copy
-	   protection bit of the first track. If this track is copy protected 
-	   (copy bit = 0), I assume, it's an audio  disk. Strange, but works ??? */
-	if (!(Toc[DiskInfo.first].ctrl_addr & 0x40))
-		DiskInfo.audio = 1;
-	else
-		DiskInfo.audio = 0;
-
-	/* XA detection */
-	if (!DiskInfo.audio) {
-		azt_Play.start.min = 0;	/*XA detection only seems to work */
-		azt_Play.start.sec = 2;	/*when we play a track */
-		azt_Play.start.frame = 0;
-		azt_Play.end.min = 0;
-		azt_Play.end.sec = 0;
-		azt_Play.end.frame = 1;
-		if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
-			return -1;
-		DTEN_LOW;
-		for (st = 0; st < CD_FRAMESIZE; st++)
-			inb(DATA_PORT);
-	}
-	DiskInfo.xa = getAztStatus() & AST_MODE;
-	if (DiskInfo.xa) {
-		printk
-		    ("aztcd: XA support experimental - mail results to Werner.Zimmermann@fht-esslingen.de\n");
-	}
-
-	/*multisession detection
-	   support for multisession CDs is done automatically with Aztech drives,
-	   we don't have to take care about TOC redirection; if we want the isofs
-	   to take care about redirection, we have to set AZT_MULTISESSION to 1 */
-	DiskInfo.multi = 0;
-#if AZT_MULTISESSION
-	if (DiskInfo.xa) {
-		aztGetMultiDiskInfo();	/*here Disk.Info.multi is set */
-	}
-#endif
-	if (DiskInfo.multi) {
-		DiskInfo.lastSession.min = Toc[DiskInfo.next].diskTime.min;
-		DiskInfo.lastSession.sec = Toc[DiskInfo.next].diskTime.sec;
-		DiskInfo.lastSession.frame =
-		    Toc[DiskInfo.next].diskTime.frame;
-		printk("aztcd: Multisession support experimental\n");
-	} else {
-		DiskInfo.lastSession.min =
-		    Toc[DiskInfo.first].diskTime.min;
-		DiskInfo.lastSession.sec =
-		    Toc[DiskInfo.first].diskTime.sec;
-		DiskInfo.lastSession.frame =
-		    Toc[DiskInfo.first].diskTime.frame;
-	}
-
-	aztTocUpToDate = 1;
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztUpdateToc  Time:%li\n", jiffies);
-#endif
-	return 0;
-}
-
-
-/* Read the table of contents header, i.e. no. of tracks and start of first 
- * track
- */
-static int aztGetDiskInfo(void)
-{
-	int limit;
-	unsigned char test;
-	struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztGetDiskInfo  Time:%li\n", jiffies);
-#endif
-	if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
-		RETURNM("aztGetDiskInfo 1", -1);
-	STEN_LOW_WAIT;
-	test = 0;
-	for (limit = 300; limit > 0; limit--) {
-		if (aztGetQChannelInfo(&qInfo) < 0)
-			RETURNM("aztGetDiskInfo 2", -1);
-		if (qInfo.pointIndex == 0xA0) {	/*Number of FirstTrack */
-			DiskInfo.first = qInfo.diskTime.min;
-			DiskInfo.first = azt_bcd2bin(DiskInfo.first);
-			test = test | 0x01;
-		}
-		if (qInfo.pointIndex == 0xA1) {	/*Number of LastTrack */
-			DiskInfo.last = qInfo.diskTime.min;
-			DiskInfo.last = azt_bcd2bin(DiskInfo.last);
-			test = test | 0x02;
-		}
-		if (qInfo.pointIndex == 0xA2) {	/*DiskLength */
-			DiskInfo.diskLength.min = qInfo.diskTime.min;
-			DiskInfo.diskLength.sec = qInfo.diskTime.sec;
-			DiskInfo.diskLength.frame = qInfo.diskTime.frame;
-			test = test | 0x04;
-		}
-		if ((qInfo.pointIndex == DiskInfo.first) && (test & 0x01)) {	/*StartTime of First Track */
-			DiskInfo.firstTrack.min = qInfo.diskTime.min;
-			DiskInfo.firstTrack.sec = qInfo.diskTime.sec;
-			DiskInfo.firstTrack.frame = qInfo.diskTime.frame;
-			test = test | 0x08;
-		}
-		if (test == 0x0F)
-			break;
-	}
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztGetDiskInfo  Time:%li\n", jiffies);
-	printk
-	    ("Disk Info: first %d last %d length %02X:%02X.%02X dez  first %02X:%02X.%02X dez\n",
-	     DiskInfo.first, DiskInfo.last, DiskInfo.diskLength.min,
-	     DiskInfo.diskLength.sec, DiskInfo.diskLength.frame,
-	     DiskInfo.firstTrack.min, DiskInfo.firstTrack.sec,
-	     DiskInfo.firstTrack.frame);
-#endif
-	if (test != 0x0F)
-		return -1;
-	return 0;
-}
-
-#if AZT_MULTISESSION
-/*
- * Get Multisession Disk Info
- */
-static int aztGetMultiDiskInfo(void)
-{
-	int limit, k = 5;
-	unsigned char test;
-	struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztGetMultiDiskInfo\n");
-#endif
-
-	do {
-		azt_Play.start.min = Toc[DiskInfo.last + 1].diskTime.min;
-		azt_Play.start.sec = Toc[DiskInfo.last + 1].diskTime.sec;
-		azt_Play.start.frame =
-		    Toc[DiskInfo.last + 1].diskTime.frame;
-		test = 0;
-
-		for (limit = 30; limit > 0; limit--) {	/*Seek for LeadIn of next session */
-			if (aztSeek(&azt_Play))
-				RETURNM("aztGetMultiDiskInfo 1", -1);
-			if (aztGetQChannelInfo(&qInfo) < 0)
-				RETURNM("aztGetMultiDiskInfo 2", -1);
-			if ((qInfo.track == 0) && (qInfo.pointIndex))
-				break;	/*LeadIn found */
-			if ((azt_Play.start.sec += 10) > 59) {
-				azt_Play.start.sec = 0;
-				azt_Play.start.min++;
-			}
-		}
-		if (!limit)
-			break;	/*Check, if a leadin track was found, if not we're
-				   at the end of the disk */
-#ifdef AZT_DEBUG_MULTISESSION
-		printk("leadin found track %d  pointIndex %x  limit %d\n",
-		       qInfo.track, qInfo.pointIndex, limit);
-#endif
-		for (limit = 300; limit > 0; limit--) {
-			if (++azt_Play.start.frame > 74) {
-				azt_Play.start.frame = 0;
-				if (azt_Play.start.sec > 59) {
-					azt_Play.start.sec = 0;
-					azt_Play.start.min++;
-				}
-			}
-			if (aztSeek(&azt_Play))
-				RETURNM("aztGetMultiDiskInfo 3", -1);
-			if (aztGetQChannelInfo(&qInfo) < 0)
-				RETURNM("aztGetMultiDiskInfo 4", -1);
-			if (qInfo.pointIndex == 0xA0) {	/*Number of NextTrack */
-				DiskInfo.next = qInfo.diskTime.min;
-				DiskInfo.next = azt_bcd2bin(DiskInfo.next);
-				test = test | 0x01;
-			}
-			if (qInfo.pointIndex == 0xA1) {	/*Number of LastTrack */
-				DiskInfo.last = qInfo.diskTime.min;
-				DiskInfo.last = azt_bcd2bin(DiskInfo.last);
-				test = test | 0x02;
-			}
-			if (qInfo.pointIndex == 0xA2) {	/*DiskLength */
-				DiskInfo.diskLength.min =
-				    qInfo.diskTime.min;
-				DiskInfo.diskLength.sec =
-				    qInfo.diskTime.sec;
-				DiskInfo.diskLength.frame =
-				    qInfo.diskTime.frame;
-				test = test | 0x04;
-			}
-			if ((qInfo.pointIndex == DiskInfo.next) && (test & 0x01)) {	/*StartTime of Next Track */
-				DiskInfo.nextSession.min =
-				    qInfo.diskTime.min;
-				DiskInfo.nextSession.sec =
-				    qInfo.diskTime.sec;
-				DiskInfo.nextSession.frame =
-				    qInfo.diskTime.frame;
-				test = test | 0x08;
-			}
-			if (test == 0x0F)
-				break;
-		}
-#ifdef AZT_DEBUG_MULTISESSION
-		printk
-		    ("MultiDisk Info: first %d next %d last %d length %02x:%02x.%02x dez  first %02x:%02x.%02x dez  next %02x:%02x.%02x dez\n",
-		     DiskInfo.first, DiskInfo.next, DiskInfo.last,
-		     DiskInfo.diskLength.min, DiskInfo.diskLength.sec,
-		     DiskInfo.diskLength.frame, DiskInfo.firstTrack.min,
-		     DiskInfo.firstTrack.sec, DiskInfo.firstTrack.frame,
-		     DiskInfo.nextSession.min, DiskInfo.nextSession.sec,
-		     DiskInfo.nextSession.frame);
-#endif
-		if (test != 0x0F)
-			break;
-		else
-			DiskInfo.multi = 1;	/*found TOC of more than one session */
-		aztGetToc(1);
-	} while (--k);
-
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztGetMultiDiskInfo  Time:%li\n", jiffies);
-#endif
-	return 0;
-}
-#endif
-
-/*
- * Read the table of contents (TOC)
- */
-static int aztGetToc(int multi)
-{
-	int i, px;
-	int limit;
-	struct azt_Toc qInfo;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztGetToc  Time:%li\n", jiffies);
-#endif
-	if (!multi) {
-		for (i = 0; i < MAX_TRACKS; i++)
-			Toc[i].pointIndex = 0;
-		i = DiskInfo.last + 3;
-	} else {
-		for (i = DiskInfo.next; i < MAX_TRACKS; i++)
-			Toc[i].pointIndex = 0;
-		i = DiskInfo.last + 4 - DiskInfo.next;
-	}
-
-/*Is there a good reason to stop motor before TOC read?
-  if (aztSendCmd(ACMD_STOP)) RETURNM("aztGetToc 1",-1);
-      STEN_LOW_WAIT;
-*/
-
-	if (!multi) {
-		azt_mode = 0x05;
-		if (aztSendCmd(ACMD_SEEK_TO_LEADIN))
-			RETURNM("aztGetToc 2", -1);
-		STEN_LOW_WAIT;
-	}
-	for (limit = 300; limit > 0; limit--) {
-		if (multi) {
-			if (++azt_Play.start.sec > 59) {
-				azt_Play.start.sec = 0;
-				azt_Play.start.min++;
-			}
-			if (aztSeek(&azt_Play))
-				RETURNM("aztGetToc 3", -1);
-		}
-		if (aztGetQChannelInfo(&qInfo) < 0)
-			break;
-
-		px = azt_bcd2bin(qInfo.pointIndex);
-
-		if (px > 0 && px < MAX_TRACKS && qInfo.track == 0)
-			if (Toc[px].pointIndex == 0) {
-				Toc[px] = qInfo;
-				i--;
-			}
-
-		if (i <= 0)
-			break;
-	}
-
-	Toc[DiskInfo.last + 1].diskTime = DiskInfo.diskLength;
-	Toc[DiskInfo.last].trackTime = DiskInfo.diskLength;
-
-#ifdef AZT_DEBUG_MULTISESSION
-	printk("aztcd: exiting aztGetToc\n");
-	for (i = 1; i <= DiskInfo.last + 1; i++)
-		printk
-		    ("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez  %02X:%02X.%02X dez\n",
-		     i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
-		     Toc[i].trackTime.min, Toc[i].trackTime.sec,
-		     Toc[i].trackTime.frame, Toc[i].diskTime.min,
-		     Toc[i].diskTime.sec, Toc[i].diskTime.frame);
-	for (i = 100; i < 103; i++)
-		printk
-		    ("i = %2d ctl-adr = %02X track %2d px %02X %02X:%02X.%02X dez  %02X:%02X.%02X dez\n",
-		     i, Toc[i].ctrl_addr, Toc[i].track, Toc[i].pointIndex,
-		     Toc[i].trackTime.min, Toc[i].trackTime.sec,
-		     Toc[i].trackTime.frame, Toc[i].diskTime.min,
-		     Toc[i].diskTime.sec, Toc[i].diskTime.frame);
-#endif
-
-	return limit > 0 ? 0 : -1;
-}
-
-
-/*##########################################################################
-  Kernel Interface Functions
-  ##########################################################################
-*/
-
-#ifndef MODULE
-static int __init aztcd_setup(char *str)
-{
-	int ints[4];
-
-	(void) get_options(str, ARRAY_SIZE(ints), ints);
-
-	if (ints[0] > 0)
-		azt_port = ints[1];
-	if (ints[1] > 1)
-		azt_cont = ints[2];
-	return 1;
-}
-
-__setup("aztcd=", aztcd_setup);
-
-#endif				/* !MODULE */
-
-/* 
- * Checking if the media has been changed
-*/
-static int check_aztcd_media_change(struct gendisk *disk)
-{
-	if (aztDiskChanged) {	/* disk changed */
-		aztDiskChanged = 0;
-		return 1;
-	} else
-		return 0;	/* no change */
-}
-
-/*
- * Kernel IO-controls
-*/
-static int aztcd_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
-		       unsigned long arg)
-{
-	int i;
-	struct azt_Toc qInfo;
-	struct cdrom_ti ti;
-	struct cdrom_tochdr tocHdr;
-	struct cdrom_msf msf;
-	struct cdrom_tocentry entry;
-	struct azt_Toc *tocPtr;
-	struct cdrom_subchnl subchnl;
-	struct cdrom_volctrl volctrl;
-	void __user *argp = (void __user *)arg;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztcd_ioctl - Command:%x   Time: %li\n",
-	       cmd, jiffies);
-	printk("aztcd Status %x\n", getAztStatus());
-#endif
-	if (!ip)
-		RETURNM("aztcd_ioctl 1", -EINVAL);
-	if (getAztStatus() < 0)
-		RETURNM("aztcd_ioctl 2", -EIO);
-	if ((!aztTocUpToDate) || (aztDiskChanged)) {
-		if ((i = aztUpdateToc()) < 0)
-			RETURNM("aztcd_ioctl 3", i);	/* error reading TOC */
-	}
-
-	switch (cmd) {
-	case CDROMSTART:	/* Spin up the drive. Don't know, what to do,
-				   at least close the tray */
-#if AZT_PRIVATE_IOCTLS
-		if (aztSendCmd(ACMD_CLOSE))
-			RETURNM("aztcd_ioctl 4", -1);
-		STEN_LOW_WAIT;
-#endif
-		break;
-	case CDROMSTOP:	/* Spin down the drive */
-		if (aztSendCmd(ACMD_STOP))
-			RETURNM("aztcd_ioctl 5", -1);
-		STEN_LOW_WAIT;
-		/* should we do anything if it fails? */
-		aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-		break;
-	case CDROMPAUSE:	/* Pause the drive */
-		if (aztAudioStatus != CDROM_AUDIO_PLAY)
-			return -EINVAL;
-
-		if (aztGetQChannelInfo(&qInfo) < 0) {	/* didn't get q channel info */
-			aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-			RETURNM("aztcd_ioctl 7", 0);
-		}
-		azt_Play.start = qInfo.diskTime;	/* remember restart point */
-
-		if (aztSendCmd(ACMD_PAUSE))
-			RETURNM("aztcd_ioctl 8", -1);
-		STEN_LOW_WAIT;
-		aztAudioStatus = CDROM_AUDIO_PAUSED;
-		break;
-	case CDROMRESUME:	/* Play it again, Sam */
-		if (aztAudioStatus != CDROM_AUDIO_PAUSED)
-			return -EINVAL;
-		/* restart the drive at the saved position. */
-		i = aztPlay(&azt_Play);
-		if (i < 0) {
-			aztAudioStatus = CDROM_AUDIO_ERROR;
-			return -EIO;
-		}
-		aztAudioStatus = CDROM_AUDIO_PLAY;
-		break;
-	case CDROMMULTISESSION:	/*multisession support -- experimental */
-		{
-			struct cdrom_multisession ms;
-#ifdef AZT_DEBUG
-			printk("aztcd ioctl MULTISESSION\n");
-#endif
-			if (copy_from_user(&ms, argp,
-			     sizeof(struct cdrom_multisession)))
-				return -EFAULT;
-			if (ms.addr_format == CDROM_MSF) {
-				ms.addr.msf.minute =
-				    azt_bcd2bin(DiskInfo.lastSession.min);
-				ms.addr.msf.second =
-				    azt_bcd2bin(DiskInfo.lastSession.sec);
-				ms.addr.msf.frame =
-				    azt_bcd2bin(DiskInfo.lastSession.
-						frame);
-			} else if (ms.addr_format == CDROM_LBA)
-				ms.addr.lba =
-				    azt_msf2hsg(&DiskInfo.lastSession);
-			else
-				return -EINVAL;
-			ms.xa_flag = DiskInfo.xa;
-			if (copy_to_user(argp, &ms,
-			     sizeof(struct cdrom_multisession)))
-				return -EFAULT;
-#ifdef AZT_DEBUG
-			if (ms.addr_format == CDROM_MSF)
-				printk
-				    ("aztcd multisession xa:%d, msf:%02x:%02x.%02x [%02x:%02x.%02x])\n",
-				     ms.xa_flag, ms.addr.msf.minute,
-				     ms.addr.msf.second, ms.addr.msf.frame,
-				     DiskInfo.lastSession.min,
-				     DiskInfo.lastSession.sec,
-				     DiskInfo.lastSession.frame);
-			else
-				printk
-				    ("aztcd multisession %d, lba:0x%08x [%02x:%02x.%02x])\n",
-				     ms.xa_flag, ms.addr.lba,
-				     DiskInfo.lastSession.min,
-				     DiskInfo.lastSession.sec,
-				     DiskInfo.lastSession.frame);
-#endif
-			return 0;
-		}
-	case CDROMPLAYTRKIND:	/* Play a track.  This currently ignores index. */
-		if (copy_from_user(&ti, argp, sizeof ti))
-			return -EFAULT;
-		if (ti.cdti_trk0 < DiskInfo.first
-		    || ti.cdti_trk0 > DiskInfo.last
-		    || ti.cdti_trk1 < ti.cdti_trk0) {
-			return -EINVAL;
-		}
-		if (ti.cdti_trk1 > DiskInfo.last)
-			ti.cdti_trk1 = DiskInfo.last;
-		azt_Play.start = Toc[ti.cdti_trk0].diskTime;
-		azt_Play.end = Toc[ti.cdti_trk1 + 1].diskTime;
-#ifdef AZT_DEBUG
-		printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
-		       azt_Play.start.min, azt_Play.start.sec,
-		       azt_Play.start.frame, azt_Play.end.min,
-		       azt_Play.end.sec, azt_Play.end.frame);
-#endif
-		i = aztPlay(&azt_Play);
-		if (i < 0) {
-			aztAudioStatus = CDROM_AUDIO_ERROR;
-			return -EIO;
-		}
-		aztAudioStatus = CDROM_AUDIO_PLAY;
-		break;
-	case CDROMPLAYMSF:	/* Play starting at the given MSF address. */
-/*              if (aztAudioStatus == CDROM_AUDIO_PLAY) 
-		{ if (aztSendCmd(ACMD_STOP)) RETURNM("aztcd_ioctl 9",-1);
-		  STEN_LOW;
-		  aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-		}
-*/
-		if (copy_from_user(&msf, argp, sizeof msf))
-			return -EFAULT;
-		/* convert to bcd */
-		azt_bin2bcd(&msf.cdmsf_min0);
-		azt_bin2bcd(&msf.cdmsf_sec0);
-		azt_bin2bcd(&msf.cdmsf_frame0);
-		azt_bin2bcd(&msf.cdmsf_min1);
-		azt_bin2bcd(&msf.cdmsf_sec1);
-		azt_bin2bcd(&msf.cdmsf_frame1);
-		azt_Play.start.min = msf.cdmsf_min0;
-		azt_Play.start.sec = msf.cdmsf_sec0;
-		azt_Play.start.frame = msf.cdmsf_frame0;
-		azt_Play.end.min = msf.cdmsf_min1;
-		azt_Play.end.sec = msf.cdmsf_sec1;
-		azt_Play.end.frame = msf.cdmsf_frame1;
-#ifdef AZT_DEBUG
-		printk("aztcd play: %02x:%02x.%02x to %02x:%02x.%02x\n",
-		       azt_Play.start.min, azt_Play.start.sec,
-		       azt_Play.start.frame, azt_Play.end.min,
-		       azt_Play.end.sec, azt_Play.end.frame);
-#endif
-		i = aztPlay(&azt_Play);
-		if (i < 0) {
-			aztAudioStatus = CDROM_AUDIO_ERROR;
-			return -EIO;
-		}
-		aztAudioStatus = CDROM_AUDIO_PLAY;
-		break;
-
-	case CDROMREADTOCHDR:	/* Read the table of contents header */
-		tocHdr.cdth_trk0 = DiskInfo.first;
-		tocHdr.cdth_trk1 = DiskInfo.last;
-		if (copy_to_user(argp, &tocHdr, sizeof tocHdr))
-			return -EFAULT;
-		break;
-	case CDROMREADTOCENTRY:	/* Read an entry in the table of contents */
-		if (copy_from_user(&entry, argp, sizeof entry))
-			return -EFAULT;
-		if ((!aztTocUpToDate) || aztDiskChanged)
-			aztUpdateToc();
-		if (entry.cdte_track == CDROM_LEADOUT)
-			tocPtr = &Toc[DiskInfo.last + 1];
-		else if (entry.cdte_track > DiskInfo.last
-			 || entry.cdte_track < DiskInfo.first) {
-			return -EINVAL;
-		} else
-			tocPtr = &Toc[entry.cdte_track];
-		entry.cdte_adr = tocPtr->ctrl_addr;
-		entry.cdte_ctrl = tocPtr->ctrl_addr >> 4;
-		if (entry.cdte_format == CDROM_LBA)
-			entry.cdte_addr.lba =
-			    azt_msf2hsg(&tocPtr->diskTime);
-		else if (entry.cdte_format == CDROM_MSF) {
-			entry.cdte_addr.msf.minute =
-			    azt_bcd2bin(tocPtr->diskTime.min);
-			entry.cdte_addr.msf.second =
-			    azt_bcd2bin(tocPtr->diskTime.sec);
-			entry.cdte_addr.msf.frame =
-			    azt_bcd2bin(tocPtr->diskTime.frame);
-		} else {
-			return -EINVAL;
-		}
-		if (copy_to_user(argp, &entry, sizeof entry))
-			return -EFAULT;
-		break;
-	case CDROMSUBCHNL:	/* Get subchannel info */
-		if (copy_from_user
-		    (&subchnl, argp, sizeof(struct cdrom_subchnl)))
-			return -EFAULT;
-		if (aztGetQChannelInfo(&qInfo) < 0) {
-#ifdef AZT_DEBUG
-			printk
-			    ("aztcd: exiting aztcd_ioctl - Error 3 - Command:%x\n",
-			     cmd);
-#endif
-			return -EIO;
-		}
-		subchnl.cdsc_audiostatus = aztAudioStatus;
-		subchnl.cdsc_adr = qInfo.ctrl_addr;
-		subchnl.cdsc_ctrl = qInfo.ctrl_addr >> 4;
-		subchnl.cdsc_trk = azt_bcd2bin(qInfo.track);
-		subchnl.cdsc_ind = azt_bcd2bin(qInfo.pointIndex);
-		if (subchnl.cdsc_format == CDROM_LBA) {
-			subchnl.cdsc_absaddr.lba =
-			    azt_msf2hsg(&qInfo.diskTime);
-			subchnl.cdsc_reladdr.lba =
-			    azt_msf2hsg(&qInfo.trackTime);
-		} else {	/*default */
-			subchnl.cdsc_format = CDROM_MSF;
-			subchnl.cdsc_absaddr.msf.minute =
-			    azt_bcd2bin(qInfo.diskTime.min);
-			subchnl.cdsc_absaddr.msf.second =
-			    azt_bcd2bin(qInfo.diskTime.sec);
-			subchnl.cdsc_absaddr.msf.frame =
-			    azt_bcd2bin(qInfo.diskTime.frame);
-			subchnl.cdsc_reladdr.msf.minute =
-			    azt_bcd2bin(qInfo.trackTime.min);
-			subchnl.cdsc_reladdr.msf.second =
-			    azt_bcd2bin(qInfo.trackTime.sec);
-			subchnl.cdsc_reladdr.msf.frame =
-			    azt_bcd2bin(qInfo.trackTime.frame);
-		}
-		if (copy_to_user(argp, &subchnl, sizeof(struct cdrom_subchnl)))
-			return -EFAULT;
-		break;
-	case CDROMVOLCTRL:	/* Volume control 
-				   * With my Aztech CD268-01A volume control does not work, I can only
-				   turn the channels on (any value !=0) or off (value==0). Maybe it
-				   works better with your drive */
-		if (copy_from_user(&volctrl, argp, sizeof(volctrl)))
-			return -EFAULT;
-		azt_Play.start.min = 0x21;
-		azt_Play.start.sec = 0x84;
-		azt_Play.start.frame = volctrl.channel0;
-		azt_Play.end.min = volctrl.channel1;
-		azt_Play.end.sec = volctrl.channel2;
-		azt_Play.end.frame = volctrl.channel3;
-		sendAztCmd(ACMD_SET_VOLUME, &azt_Play);
-		STEN_LOW_WAIT;
-		break;
-	case CDROMEJECT:
-		aztUnlockDoor();	/* Assume user knows what they're doing */
-		/* all drives can at least stop! */
-		if (aztAudioStatus == CDROM_AUDIO_PLAY) {
-			if (aztSendCmd(ACMD_STOP))
-				RETURNM("azt_ioctl 10", -1);
-			STEN_LOW_WAIT;
-		}
-		if (aztSendCmd(ACMD_EJECT))
-			RETURNM("azt_ioctl 11", -1);
-		STEN_LOW_WAIT;
-		aztAudioStatus = CDROM_AUDIO_NO_STATUS;
-		break;
-	case CDROMEJECT_SW:
-		azt_auto_eject = (char) arg;
-		break;
-	case CDROMRESET:
-		outb(ACMD_SOFT_RESET, CMD_PORT);	/*send reset */
-		STEN_LOW;
-		if (inb(DATA_PORT) != AFL_OP_OK) {	/*OP_OK? */
-			printk
-			    ("aztcd: AZTECH CD-ROM drive does not respond\n");
-		}
-		break;
-/*Take care, the following code is not compatible with other CD-ROM drivers,
-  use it at your own risk with cdplay.c. Set AZT_PRIVATE_IOCTLS to 0 in aztcd.h,
-  if you do not want to use it!
-*/
-#if AZT_PRIVATE_IOCTLS
-	case CDROMREADCOOKED:	/*read data in mode 1 (2048 Bytes) */
-	case CDROMREADRAW:	/*read data in mode 2 (2336 Bytes) */
-		{
-			if (copy_from_user(&msf, argp, sizeof msf))
-				return -EFAULT;
-			/* convert to bcd */
-			azt_bin2bcd(&msf.cdmsf_min0);
-			azt_bin2bcd(&msf.cdmsf_sec0);
-			azt_bin2bcd(&msf.cdmsf_frame0);
-			msf.cdmsf_min1 = 0;
-			msf.cdmsf_sec1 = 0;
-			msf.cdmsf_frame1 = 1;	/*read only one frame */
-			azt_Play.start.min = msf.cdmsf_min0;
-			azt_Play.start.sec = msf.cdmsf_sec0;
-			azt_Play.start.frame = msf.cdmsf_frame0;
-			azt_Play.end.min = msf.cdmsf_min1;
-			azt_Play.end.sec = msf.cdmsf_sec1;
-			azt_Play.end.frame = msf.cdmsf_frame1;
-			if (cmd == CDROMREADRAW) {
-				if (DiskInfo.xa) {
-					return -1;	/*XA Disks can't be read raw */
-				} else {
-					if (sendAztCmd(ACMD_PLAY_READ_RAW, &azt_Play))
-						return -1;
-					DTEN_LOW;
-					insb(DATA_PORT, buf, CD_FRAMESIZE_RAW);
-					if (copy_to_user(argp, &buf, CD_FRAMESIZE_RAW))
-						return -EFAULT;
-				}
-			} else
-				/*CDROMREADCOOKED*/ {
-				if (sendAztCmd(ACMD_PLAY_READ, &azt_Play))
-					return -1;
-				DTEN_LOW;
-				insb(DATA_PORT, buf, CD_FRAMESIZE);
-				if (copy_to_user(argp, &buf, CD_FRAMESIZE))
-					return -EFAULT;
-				}
-		}
-		break;
-	case CDROMSEEK:	/*seek msf address */
-		if (copy_from_user(&msf, argp, sizeof msf))
-			return -EFAULT;
-		/* convert to bcd */
-		azt_bin2bcd(&msf.cdmsf_min0);
-		azt_bin2bcd(&msf.cdmsf_sec0);
-		azt_bin2bcd(&msf.cdmsf_frame0);
-		azt_Play.start.min = msf.cdmsf_min0;
-		azt_Play.start.sec = msf.cdmsf_sec0;
-		azt_Play.start.frame = msf.cdmsf_frame0;
-		if (aztSeek(&azt_Play))
-			return -1;
-		break;
-#endif				/*end of incompatible code */
-	case CDROMREADMODE1:	/*set read data in mode 1 */
-		return aztSetDiskType(AZT_MODE_1);
-	case CDROMREADMODE2:	/*set read data in mode 2 */
-		return aztSetDiskType(AZT_MODE_2);
-	default:
-		return -EINVAL;
-	}
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztcd_ioctl Command:%x  Time:%li\n", cmd,
-	       jiffies);
-#endif
-	return 0;
-}
-
-/*
- * Take care of the different block sizes between cdrom and Linux.
- * When Linux gets variable block sizes this will probably go away.
- */
-static void azt_transfer(void)
-{
-#ifdef AZT_TEST
-	printk("aztcd: executing azt_transfer Time:%li\n", jiffies);
-#endif
-	if (!current_valid())
-	        return;
-
-	while (CURRENT->nr_sectors) {
-		int bn = CURRENT->sector / 4;
-		int i;
-		for (i = 0; i < AZT_BUF_SIZ && azt_buf_bn[i] != bn; ++i);
-		if (i < AZT_BUF_SIZ) {
-			int offs = (i * 4 + (CURRENT->sector & 3)) * 512;
-			int nr_sectors = 4 - (CURRENT->sector & 3);
-			if (azt_buf_out != i) {
-				azt_buf_out = i;
-				if (azt_buf_bn[i] != bn) {
-					azt_buf_out = -1;
-					continue;
-				}
-			}
-			if (nr_sectors > CURRENT->nr_sectors)
-			    nr_sectors = CURRENT->nr_sectors;
-			memcpy(CURRENT->buffer, azt_buf + offs,
-				nr_sectors * 512);
-			CURRENT->nr_sectors -= nr_sectors;
-			CURRENT->sector += nr_sectors;
-			CURRENT->buffer += nr_sectors * 512;
-		} else {
-			azt_buf_out = -1;
-			break;
-		}
-	}
-}
-
-static void do_aztcd_request(request_queue_t * q)
-{
-#ifdef AZT_TEST
-	printk(" do_aztcd_request(%ld+%ld) Time:%li\n", CURRENT->sector,
-	       CURRENT->nr_sectors, jiffies);
-#endif
-	if (DiskInfo.audio) {
-		printk("aztcd: Error, tried to mount an Audio CD\n");
-		end_request(CURRENT, 0);
-		return;
-	}
-	azt_transfer_is_active = 1;
-	while (current_valid()) {
-		azt_transfer();
-		if (CURRENT->nr_sectors == 0) {
-			end_request(CURRENT, 1);
-		} else {
-			azt_buf_out = -1;	/* Want to read a block not in buffer */
-			if (azt_state == AZT_S_IDLE) {
-				if ((!aztTocUpToDate) || aztDiskChanged) {
-					if (aztUpdateToc() < 0) {
-						while (current_valid())
-							end_request(CURRENT, 0);
-						break;
-					}
-				}
-				azt_state = AZT_S_START;
-				AztTries = 5;
-				SET_TIMER(azt_poll, HZ / 100);
-			}
-			break;
-		}
-	}
-	azt_transfer_is_active = 0;
-#ifdef AZT_TEST2
-	printk
-	    ("azt_next_bn:%x  azt_buf_in:%x azt_buf_out:%x  azt_buf_bn:%x\n",
-	     azt_next_bn, azt_buf_in, azt_buf_out, azt_buf_bn[azt_buf_in]);
-	printk(" do_aztcd_request ends  Time:%li\n", jiffies);
-#endif
-}
-
-
-static void azt_invalidate_buffers(void)
-{
-	int i;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: executing azt_invalidate_buffers\n");
-#endif
-	for (i = 0; i < AZT_BUF_SIZ; ++i)
-		azt_buf_bn[i] = -1;
-	azt_buf_out = -1;
-}
-
-/*
- * Open the device special file.  Check that a disk is in.
- */
-static int aztcd_open(struct inode *ip, struct file *fp)
-{
-	int st;
-
-#ifdef AZT_DEBUG
-	printk("aztcd: starting aztcd_open\n");
-#endif
-
-	if (aztPresent == 0)
-		return -ENXIO;	/* no hardware */
-
-	if (!azt_open_count && azt_state == AZT_S_IDLE) {
-		azt_invalidate_buffers();
-
-		st = getAztStatus();	/* check drive status */
-		if (st == -1)
-			goto err_out;	/* drive doesn't respond */
-
-		if (st & AST_DOOR_OPEN) {	/* close door, then get the status again. */
-			printk("aztcd: Door Open?\n");
-			aztCloseDoor();
-			st = getAztStatus();
-		}
-
-		if ((st & AST_NOT_READY) || (st & AST_DSK_CHG)) {	/*no disk in drive or changed */
-			printk
-			    ("aztcd: Disk Changed or No Disk in Drive?\n");
-			aztTocUpToDate = 0;
-		}
-		if (aztUpdateToc())
-			goto err_out;
-
-	}
-	++azt_open_count;
-	aztLockDoor();
-
-#ifdef AZT_DEBUG
-	printk("aztcd: exiting aztcd_open\n");
-#endif
-	return 0;
-
-      err_out:
-	return -EIO;
-}
-
-
-/*
- * On close, we flush all azt blocks from the buffer cache.
- */
-static int aztcd_release(struct inode *inode, struct file *file)
-{
-#ifdef AZT_DEBUG
-	printk("aztcd: executing aztcd_release\n");
-	printk("inode: %p, device: %s    file: %p\n", inode,
-	       inode->i_bdev->bd_disk->disk_name, file);
-#endif
-	if (!--azt_open_count) {
-		azt_invalidate_buffers();
-		aztUnlockDoor();
-		if (azt_auto_eject)
-			aztSendCmd(ACMD_EJECT);
-		CLEAR_TIMER;
-	}
-	return 0;
-}
-
-static struct gendisk *azt_disk;
-
-/*
- * Test for presence of drive and initialize it.  Called at boot time.
- */
-
-static int __init aztcd_init(void)
-{
-	long int count, max_count;
-	unsigned char result[50];
-	int st;
-	void* status = NULL;
-	int i = 0;
-	int ret = 0;
-
-	if (azt_port == 0) {
-		printk(KERN_INFO "aztcd: no Aztech CD-ROM Initialization");
-		return -EIO;
-	}
-
-	printk(KERN_INFO "aztcd: AZTECH, ORCHID, OKANO, WEARNES, TXC, CyDROM "
-	       "CD-ROM Driver\n");
-	printk(KERN_INFO "aztcd: (C) 1994-98 W.Zimmermann\n");
-	if (azt_port == -1) {
-		printk
-		    ("aztcd: DriverVersion=%s For IDE/ATAPI-drives use ide-cd.c\n",
-		     AZT_VERSION);
-	} else
-		printk
-		    ("aztcd: DriverVersion=%s BaseAddress=0x%x  For IDE/ATAPI-drives use ide-cd.c\n",
-		     AZT_VERSION, azt_port);
-	printk(KERN_INFO "aztcd: If you have problems, read /usr/src/linux/"
-	       "Documentation/cdrom/aztcd\n");
-
-
-#ifdef AZT_SW32			/*CDROM connected to Soundwave32 card */
-	if ((0xFF00 & inw(AZT_SW32_ID_REG)) != 0x4500) {
-		printk
-		    ("aztcd: no Soundwave32 card detected at base:%x init:%x config:%x id:%x\n",
-		     AZT_SW32_BASE_ADDR, AZT_SW32_INIT,
-		     AZT_SW32_CONFIG_REG, AZT_SW32_ID_REG);
-		return -EIO;
-	} else {
-		printk(KERN_INFO
-		       "aztcd: Soundwave32 card detected at %x  Version %x\n",
-		       AZT_SW32_BASE_ADDR, inw(AZT_SW32_ID_REG));
-		outw(AZT_SW32_INIT, AZT_SW32_CONFIG_REG);
-		for (count = 0; count < 10000; count++);	/*delay a bit */
-	}
-#endif
-
-	/* check for presence of drive */
-
-	if (azt_port == -1) {	/* autoprobing for proprietary interface  */
-		for (i = 0; (azt_port_auto[i] != 0) && (i < 16); i++) {
-			azt_port = azt_port_auto[i];
-			printk(KERN_INFO "aztcd: Autoprobing BaseAddress=0x%x"
-			       "\n", azt_port);
-			 /*proprietary interfaces need 4 bytes */
-			if (!request_region(azt_port, 4, "aztcd")) {
-				continue;
-			}
-			outb(POLLED, MODE_PORT);
-			inb(CMD_PORT);
-			inb(CMD_PORT);
-			outb(ACMD_GET_VERSION, CMD_PORT);	/*Try to get version info */
-
-			aztTimeOutCount = 0;
-			do {
-				aztIndatum = inb(STATUS_PORT);
-				aztTimeOutCount++;
-				if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
-					break;
-			} while (aztIndatum & AFL_STATUS);
-			if (inb(DATA_PORT) == AFL_OP_OK) { /* OK drive found */
-				break;
-			}
-			else {  /* Drive not found on this port - try next one */
-				release_region(azt_port, 4);
-			}
-		}
-		if ((i == 16) || (azt_port_auto[i] == 0)) {
-			printk(KERN_INFO "aztcd: no AZTECH CD-ROM drive found\n");
-			return -EIO;
-		}
-	} else {		/* no autoprobing */
-		if ((azt_port == 0x1f0) || (azt_port == 0x170))
-			status = request_region(azt_port, 8, "aztcd");	/*IDE-interfaces need 8 bytes */
-		else
-			status = request_region(azt_port, 4, "aztcd");	/*proprietary interfaces need 4 bytes */
-		if (!status) {
-			printk(KERN_WARNING "aztcd: conflict, I/O port (%X) "
-			       "already used\n", azt_port);
-			return -EIO;
-		}
-
-		if ((azt_port == 0x1f0) || (azt_port == 0x170))
-			SWITCH_IDE_SLAVE;	/*switch IDE interface to slave configuration */
-
-		outb(POLLED, MODE_PORT);
-		inb(CMD_PORT);
-		inb(CMD_PORT);
-		outb(ACMD_GET_VERSION, CMD_PORT);	/*Try to get version info */
-
-		aztTimeOutCount = 0;
-		do {
-			aztIndatum = inb(STATUS_PORT);
-			aztTimeOutCount++;
-			if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
-				break;
-		} while (aztIndatum & AFL_STATUS);
-
-		if (inb(DATA_PORT) != AFL_OP_OK) {	/*OP_OK? If not, reset and try again */
-#ifndef MODULE
-			if (azt_cont != 0x79) {
-				printk(KERN_WARNING "aztcd: no AZTECH CD-ROM "
-				       "drive found-Try boot parameter aztcd="
-				       "<BaseAddress>,0x79\n");
-				ret = -EIO;
-				goto err_out;
-			}
-#else
-			if (0) {
-			}
-#endif
-			else {
-				printk(KERN_INFO "aztcd: drive reset - "
-				       "please wait\n");
-				for (count = 0; count < 50; count++) {
-					inb(STATUS_PORT);	/*removing all data from earlier tries */
-					inb(DATA_PORT);
-				}
-				outb(POLLED, MODE_PORT);
-				inb(CMD_PORT);
-				inb(CMD_PORT);
-				getAztStatus();	/*trap errors */
-				outb(ACMD_SOFT_RESET, CMD_PORT);	/*send reset */
-				STEN_LOW;
-				if (inb(DATA_PORT) != AFL_OP_OK) {	/*OP_OK? */
-					printk(KERN_WARNING "aztcd: no AZTECH "
-					       "CD-ROM drive found\n");
-					ret = -EIO;
-					goto err_out;
-				}
-
-				for (count = 0; count < AZT_TIMEOUT;
-				     count++)
-					barrier();	/* Stop gcc 2.96 being smart */
-				/* use udelay(), damnit -- AV */
-
-				if ((st = getAztStatus()) == -1) {
-					printk(KERN_WARNING "aztcd: Drive Status"
-					       " Error Status=%x\n", st);
-					ret = -EIO;
-					goto err_out;
-				}
-#ifdef AZT_DEBUG
-				printk(KERN_DEBUG "aztcd: Status = %x\n", st);
-#endif
-				outb(POLLED, MODE_PORT);
-				inb(CMD_PORT);
-				inb(CMD_PORT);
-				outb(ACMD_GET_VERSION, CMD_PORT);	/*GetVersion */
-				STEN_LOW;
-				OP_OK;
-			}
-		}
-	}
-
-	azt_init_end = 1;
-	STEN_LOW;
-	result[0] = inb(DATA_PORT);	/*reading in a null byte??? */
-	for (count = 1; count < 50; count++) {	/*Reading version string */
-		aztTimeOutCount = 0;	/*here we must implement STEN_LOW differently */
-		do {
-			aztIndatum = inb(STATUS_PORT);	/*because we want to exit by timeout */
-			aztTimeOutCount++;
-			if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
-				break;
-		} while (aztIndatum & AFL_STATUS);
-		if (aztTimeOutCount >= AZT_FAST_TIMEOUT)
-			break;	/*all chars read? */
-		result[count] = inb(DATA_PORT);
-	}
-	if (count > 30)
-		max_count = 30;	/*print max.30 chars of the version string */
-	else
-		max_count = count;
-	printk(KERN_INFO "aztcd: FirmwareVersion=");
-	for (count = 1; count < max_count; count++)
-		printk("%c", result[count]);
-	printk("<<>> ");
-
-	if ((result[1] == 'A') && (result[2] == 'Z') && (result[3] == 'T')) {
-		printk("AZTECH drive detected\n");
-	/*AZTECH*/}
-		else if ((result[2] == 'C') && (result[3] == 'D')
-			 && (result[4] == 'D')) {
-		printk("ORCHID or WEARNES drive detected\n");	/*ORCHID or WEARNES */
-	} else if ((result[1] == 0x03) && (result[2] == '5')) {
-		printk("TXC or CyCDROM drive detected\n");	/*Conrad TXC, CyCDROM */
-	} else {		/*OTHERS or none */
-		printk("\nunknown drive or firmware version detected\n");
-		printk
-		    ("aztcd may not run stable, if you want to try anyhow,\n");
-		printk("boot with: aztcd=<BaseAddress>,0x79\n");
-		if ((azt_cont != 0x79)) {
-			printk("aztcd: FirmwareVersion=");
-			for (count = 1; count < 5; count++)
-				printk("%c", result[count]);
-			printk("<<>> ");
-			printk("Aborted\n");
-			ret = -EIO;
-			goto err_out;
-		}
-	}
-	azt_disk = alloc_disk(1);
-	if (!azt_disk)
-		goto err_out;
-
-	if (register_blkdev(MAJOR_NR, "aztcd")) {
-		ret = -EIO;
-		goto err_out2;
-	}
-
-	azt_queue = blk_init_queue(do_aztcd_request, &aztSpin);
-	if (!azt_queue) {
-		ret = -ENOMEM;
-		goto err_out3;
-	}
-
-	blk_queue_hardsect_size(azt_queue, 2048);
-	azt_disk->major = MAJOR_NR;
-	azt_disk->first_minor = 0;
-	azt_disk->fops = &azt_fops;
-	sprintf(azt_disk->disk_name, "aztcd");
-	azt_disk->queue = azt_queue;
-	add_disk(azt_disk);
-	azt_invalidate_buffers();
-	aztPresent = 1;
-	aztCloseDoor();
-	return 0;
-err_out3:
-	unregister_blkdev(MAJOR_NR, "aztcd");
-err_out2:
-	put_disk(azt_disk);
-err_out:
-	if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
-		SWITCH_IDE_MASTER;
-		release_region(azt_port, 8);	/*IDE-interface */
-	} else
-		release_region(azt_port, 4);	/*proprietary interface */
-	return ret;
-
-}
-
-static void __exit aztcd_exit(void)
-{
-	del_gendisk(azt_disk);
-	put_disk(azt_disk);
-	if ((unregister_blkdev(MAJOR_NR, "aztcd") == -EINVAL)) {
-		printk("What's that: can't unregister aztcd\n");
-		return;
-	}
-	blk_cleanup_queue(azt_queue);
-	if ((azt_port == 0x1f0) || (azt_port == 0x170)) {
-		SWITCH_IDE_MASTER;
-		release_region(azt_port, 8);	/*IDE-interface */
-	} else
-		release_region(azt_port, 4);	/*proprietary interface */
-	printk(KERN_INFO "aztcd module released.\n");
-}
-
-module_init(aztcd_init);
-module_exit(aztcd_exit);
-
-/*##########################################################################
-  Aztcd State Machine: Controls Drive Operating State
-  ##########################################################################
-*/
-static void azt_poll(void)
-{
-	int st = 0;
-	int loop_ctl = 1;
-	int skip = 0;
-
-	if (azt_error) {
-		if (aztSendCmd(ACMD_GET_ERROR))
-			RETURN("azt_poll 1");
-		STEN_LOW;
-		azt_error = inb(DATA_PORT) & 0xFF;
-		printk("aztcd: I/O error 0x%02x\n", azt_error);
-		azt_invalidate_buffers();
-#ifdef WARN_IF_READ_FAILURE
-		if (AztTries == 5)
-			printk
-			    ("aztcd: Read of Block %d Failed - Maybe Audio Disk?\n",
-			     azt_next_bn);
-#endif
-		if (!AztTries--) {
-			printk
-			    ("aztcd: Read of Block %d Failed, Maybe Audio Disk? Giving up\n",
-			     azt_next_bn);
-			if (azt_transfer_is_active) {
-				AztTries = 0;
-				loop_ctl = 0;
-			}
-			if (current_valid())
-				end_request(CURRENT, 0);
-			AztTries = 5;
-		}
-		azt_error = 0;
-		azt_state = AZT_S_STOP;
-	}
-
-	while (loop_ctl) {
-		loop_ctl = 0;	/* each case must flip this back to 1 if we want
-				   to come back up here */
-		switch (azt_state) {
-
-		case AZT_S_IDLE:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_IDLE\n");
-			}
-#endif
-			return;
-
-		case AZT_S_START:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_START\n");
-			}
-#endif
-			if (aztSendCmd(ACMD_GET_STATUS))
-				RETURN("azt_poll 2");	/*result will be checked by aztStatus() */
-			azt_state =
-			    azt_mode == 1 ? AZT_S_READ : AZT_S_MODE;
-			AztTimeout = 3000;
-			break;
-
-		case AZT_S_MODE:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_MODE\n");
-			}
-#endif
-			if (!skip) {
-				if ((st = aztStatus()) != -1) {
-					if ((st & AST_DSK_CHG)
-					    || (st & AST_NOT_READY)) {
-						aztDiskChanged = 1;
-						aztTocUpToDate = 0;
-						azt_invalidate_buffers();
-						end_request(CURRENT, 0);
-						printk
-						    ("aztcd: Disk Changed or Not Ready 1 - Unmount Disk!\n");
-					}
-				} else
-					break;
-			}
-			skip = 0;
-
-			if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
-				aztDiskChanged = 1;
-				aztTocUpToDate = 0;
-				printk
-				    ("aztcd: Disk Changed or Not Ready 2 - Unmount Disk!\n");
-				end_request(CURRENT, 0);
-				printk((st & AST_DOOR_OPEN) ?
-				       "aztcd: door open\n" :
-				       "aztcd: disk removed\n");
-				if (azt_transfer_is_active) {
-					azt_state = AZT_S_START;
-					loop_ctl = 1;	/* goto immediately */
-					break;
-				}
-				azt_state = AZT_S_IDLE;
-				while (current_valid())
-					end_request(CURRENT, 0);
-				return;
-			}
-
-/*	  if (aztSendCmd(ACMD_SET_MODE)) RETURN("azt_poll 3");
-	  outb(0x01, DATA_PORT);
-	  PA_OK;
-	  STEN_LOW;
-*/
-			if (aztSendCmd(ACMD_GET_STATUS))
-				RETURN("azt_poll 4");
-			STEN_LOW;
-			azt_mode = 1;
-			azt_state = AZT_S_READ;
-			AztTimeout = 3000;
-
-			break;
-
-
-		case AZT_S_READ:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_READ\n");
-			}
-#endif
-			if (!skip) {
-				if ((st = aztStatus()) != -1) {
-					if ((st & AST_DSK_CHG)
-					    || (st & AST_NOT_READY)) {
-						aztDiskChanged = 1;
-						aztTocUpToDate = 0;
-						azt_invalidate_buffers();
-						printk
-						    ("aztcd: Disk Changed or Not Ready 3 - Unmount Disk!\n");
-						end_request(CURRENT, 0);
-					}
-				} else
-					break;
-			}
-
-			skip = 0;
-			if ((st & AST_DOOR_OPEN) || (st & AST_NOT_READY)) {
-				aztDiskChanged = 1;
-				aztTocUpToDate = 0;
-				printk((st & AST_DOOR_OPEN) ?
-				       "aztcd: door open\n" :
-				       "aztcd: disk removed\n");
-				if (azt_transfer_is_active) {
-					azt_state = AZT_S_START;
-					loop_ctl = 1;
-					break;
-				}
-				azt_state = AZT_S_IDLE;
-				while (current_valid())
-					end_request(CURRENT, 0);
-				return;
-			}
-
-			if (current_valid()) {
-				struct azt_Play_msf msf;
-				int i;
-				azt_next_bn = CURRENT->sector / 4;
-				azt_hsg2msf(azt_next_bn, &msf.start);
-				i = 0;
-				/* find out in which track we are */
-				while (azt_msf2hsg(&msf.start) >
-				       azt_msf2hsg(&Toc[++i].trackTime)) {
-				};
-				if (azt_msf2hsg(&msf.start) <
-				    azt_msf2hsg(&Toc[i].trackTime) -
-				    AZT_BUF_SIZ) {
-					azt_read_count = AZT_BUF_SIZ;	/*fast, because we read ahead */
-					/*azt_read_count=CURRENT->nr_sectors;    slow, no read ahead */
-				} else	/* don't read beyond end of track */
-#if AZT_MULTISESSION
-				{
-					azt_read_count =
-					    (azt_msf2hsg(&Toc[i].trackTime)
-					     / 4) * 4 -
-					    azt_msf2hsg(&msf.start);
-					if (azt_read_count < 0)
-						azt_read_count = 0;
-					if (azt_read_count > AZT_BUF_SIZ)
-						azt_read_count =
-						    AZT_BUF_SIZ;
-					printk
-					    ("aztcd: warning - trying to read beyond end of track\n");
-/*               printk("%i %i %li %li\n",i,azt_read_count,azt_msf2hsg(&msf.start),azt_msf2hsg(&Toc[i].trackTime));
-*/ }
-#else
-				{
-					azt_read_count = AZT_BUF_SIZ;
-				}
-#endif
-				msf.end.min = 0;
-				msf.end.sec = 0;
-				msf.end.frame = azt_read_count;	/*Mitsumi here reads 0xffffff sectors */
-#ifdef AZT_TEST3
-				printk
-				    ("---reading msf-address %x:%x:%x  %x:%x:%x\n",
-				     msf.start.min, msf.start.sec,
-				     msf.start.frame, msf.end.min,
-				     msf.end.sec, msf.end.frame);
-				printk
-				    ("azt_next_bn:%x  azt_buf_in:%x azt_buf_out:%x  azt_buf_bn:%x\n",
-				     azt_next_bn, azt_buf_in, azt_buf_out,
-				     azt_buf_bn[azt_buf_in]);
-#endif
-				if (azt_read_mode == AZT_MODE_2) {
-					sendAztCmd(ACMD_PLAY_READ_RAW, &msf);	/*XA disks in raw mode */
-				} else {
-					sendAztCmd(ACMD_PLAY_READ, &msf);	/*others in cooked mode */
-				}
-				azt_state = AZT_S_DATA;
-				AztTimeout = READ_TIMEOUT;
-			} else {
-				azt_state = AZT_S_STOP;
-				loop_ctl = 1;
-				break;
-			}
-
-			break;
-
-
-		case AZT_S_DATA:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_DATA\n");
-			}
-#endif
-
-			st = inb(STATUS_PORT) & AFL_STATUSorDATA;
-
-			switch (st) {
-
-			case AFL_DATA:
-#ifdef AZT_TEST3
-				if (st != azt_st_old) {
-					azt_st_old = st;
-					printk("---AFL_DATA st:%x\n", st);
-				}
-#endif
-				if (!AztTries--) {
-					printk
-					    ("aztcd: Read of Block %d Failed, Maybe Audio Disk ? Giving up\n",
-					     azt_next_bn);
-					if (azt_transfer_is_active) {
-						AztTries = 0;
-						break;
-					}
-					if (current_valid())
-						end_request(CURRENT, 0);
-					AztTries = 5;
-				}
-				azt_state = AZT_S_START;
-				AztTimeout = READ_TIMEOUT;
-				loop_ctl = 1;
-				break;
-
-			case AFL_STATUSorDATA:
-#ifdef AZT_TEST3
-				if (st != azt_st_old) {
-					azt_st_old = st;
-					printk
-					    ("---AFL_STATUSorDATA st:%x\n",
-					     st);
-				}
-#endif
-				break;
-
-			default:
-#ifdef AZT_TEST3
-				if (st != azt_st_old) {
-					azt_st_old = st;
-					printk("---default: st:%x\n", st);
-				}
-#endif
-				AztTries = 5;
-				if (!current_valid() && azt_buf_in == azt_buf_out) {
-					azt_state = AZT_S_STOP;
-					loop_ctl = 1;
-					break;
-				}
-				if (azt_read_count <= 0)
-					printk
-					    ("aztcd: warning - try to read 0 frames\n");
-				while (azt_read_count) {	/*??? fast read ahead loop */
-					azt_buf_bn[azt_buf_in] = -1;
-					DTEN_LOW;	/*??? unsolved problem, very
-							   seldom we get timeouts
-							   here, don't now the real
-							   reason. With my drive this
-							   sometimes also happens with
-							   Aztech's original driver under
-							   DOS. Is it a hardware bug? 
-							   I tried to recover from such
-							   situations here. Zimmermann */
-					if (aztTimeOutCount >= AZT_TIMEOUT) {
-						printk
-						    ("read_count:%d CURRENT->nr_sectors:%ld azt_buf_in:%d\n",
-						     azt_read_count,
-						     CURRENT->nr_sectors,
-						     azt_buf_in);
-						printk
-						    ("azt_transfer_is_active:%x\n",
-						     azt_transfer_is_active);
-						azt_read_count = 0;
-						azt_state = AZT_S_STOP;
-						loop_ctl = 1;
-						end_request(CURRENT, 1);	/*should we have here (1) or (0)? */
-					} else {
-						if (azt_read_mode ==
-						    AZT_MODE_2) {
-							insb(DATA_PORT,
-							     azt_buf +
-							     CD_FRAMESIZE_RAW
-							     * azt_buf_in,
-							     CD_FRAMESIZE_RAW);
-						} else {
-							insb(DATA_PORT,
-							     azt_buf +
-							     CD_FRAMESIZE *
-							     azt_buf_in,
-							     CD_FRAMESIZE);
-						}
-						azt_read_count--;
-#ifdef AZT_TEST3
-						printk
-						    ("AZT_S_DATA; ---I've read data- read_count: %d\n",
-						     azt_read_count);
-						printk
-						    ("azt_next_bn:%d  azt_buf_in:%d azt_buf_out:%d  azt_buf_bn:%d\n",
-						     azt_next_bn,
-						     azt_buf_in,
-						     azt_buf_out,
-						     azt_buf_bn
-						     [azt_buf_in]);
-#endif
-						azt_buf_bn[azt_buf_in] =
-						    azt_next_bn++;
-						if (azt_buf_out == -1)
-							azt_buf_out =
-							    azt_buf_in;
-						azt_buf_in =
-						    azt_buf_in + 1 ==
-						    AZT_BUF_SIZ ? 0 :
-						    azt_buf_in + 1;
-					}
-				}
-				if (!azt_transfer_is_active) {
-					while (current_valid()) {
-						azt_transfer();
-						if (CURRENT->nr_sectors ==
-						    0)
-							end_request(CURRENT, 1);
-						else
-							break;
-					}
-				}
-
-				if (current_valid()
-				    && (CURRENT->sector / 4 < azt_next_bn
-					|| CURRENT->sector / 4 >
-					azt_next_bn + AZT_BUF_SIZ)) {
-					azt_state = AZT_S_STOP;
-					loop_ctl = 1;
-					break;
-				}
-				AztTimeout = READ_TIMEOUT;
-				if (azt_read_count == 0) {
-					azt_state = AZT_S_STOP;
-					loop_ctl = 1;
-					break;
-				}
-				break;
-			}
-			break;
-
-
-		case AZT_S_STOP:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_STOP\n");
-			}
-#endif
-			if (azt_read_count != 0)
-				printk("aztcd: discard data=%x frames\n",
-				       azt_read_count);
-			while (azt_read_count != 0) {
-				int i;
-				if (!(inb(STATUS_PORT) & AFL_DATA)) {
-					if (azt_read_mode == AZT_MODE_2)
-						for (i = 0;
-						     i < CD_FRAMESIZE_RAW;
-						     i++)
-							inb(DATA_PORT);
-					else
-						for (i = 0;
-						     i < CD_FRAMESIZE; i++)
-							inb(DATA_PORT);
-				}
-				azt_read_count--;
-			}
-			if (aztSendCmd(ACMD_GET_STATUS))
-				RETURN("azt_poll 5");
-			azt_state = AZT_S_STOPPING;
-			AztTimeout = 1000;
-			break;
-
-		case AZT_S_STOPPING:
-#ifdef AZT_TEST3
-			if (azt_state != azt_state_old) {
-				azt_state_old = azt_state;
-				printk("AZT_S_STOPPING\n");
-			}
-#endif
-
-			if ((st = aztStatus()) == -1 && AztTimeout)
-				break;
-
-			if ((st != -1)
-			    && ((st & AST_DSK_CHG)
-				|| (st & AST_NOT_READY))) {
-				aztDiskChanged = 1;
-				aztTocUpToDate = 0;
-				azt_invalidate_buffers();
-				printk
-				    ("aztcd: Disk Changed or Not Ready 4 - Unmount Disk!\n");
-				end_request(CURRENT, 0);
-			}
-
-#ifdef AZT_TEST3
-			printk("CURRENT_VALID %d azt_mode %d\n",
-			       current_valid(), azt_mode);
-#endif
-
-			if (current_valid()) {
-				if (st != -1) {
-					if (azt_mode == 1) {
-						azt_state = AZT_S_READ;
-						loop_ctl = 1;
-						skip = 1;
-						break;
-					} else {
-						azt_state = AZT_S_MODE;
-						loop_ctl = 1;
-						skip = 1;
-						break;
-					}
-				} else {
-					azt_state = AZT_S_START;
-					AztTimeout = 1;
-				}
-			} else {
-				azt_state = AZT_S_IDLE;
-				return;
-			}
-			break;
-
-		default:
-			printk("aztcd: invalid state %d\n", azt_state);
-			return;
-		}		/* case */
-	}			/* while */
-
-
-	if (!AztTimeout--) {
-		printk("aztcd: timeout in state %d\n", azt_state);
-		azt_state = AZT_S_STOP;
-		if (aztSendCmd(ACMD_STOP))
-			RETURN("azt_poll 6");
-		STEN_LOW_WAIT;
-	};
-
-	SET_TIMER(azt_poll, HZ / 100);
-}
-
-
-/*###########################################################################
- * Miscellaneous support functions
-  ###########################################################################
-*/
-static void azt_hsg2msf(long hsg, struct msf *msf)
-{
-	hsg += 150;
-	msf->min = hsg / 4500;
-	hsg %= 4500;
-	msf->sec = hsg / 75;
-	msf->frame = hsg % 75;
-#ifdef AZT_DEBUG
-	if (msf->min >= 70)
-		printk("aztcd: Error hsg2msf address Minutes\n");
-	if (msf->sec >= 60)
-		printk("aztcd: Error hsg2msf address Seconds\n");
-	if (msf->frame >= 75)
-		printk("aztcd: Error hsg2msf address Frames\n");
-#endif
-	azt_bin2bcd(&msf->min);	/* convert to BCD */
-	azt_bin2bcd(&msf->sec);
-	azt_bin2bcd(&msf->frame);
-}
-
-static long azt_msf2hsg(struct msf *mp)
-{
-	return azt_bcd2bin(mp->frame) + azt_bcd2bin(mp->sec) * 75
-	    + azt_bcd2bin(mp->min) * 4500 - CD_MSF_OFFSET;
-}
-
-static void azt_bin2bcd(unsigned char *p)
-{
-	int u, t;
-
-	u = *p % 10;
-	t = *p / 10;
-	*p = u | (t << 4);
-}
-
-static int azt_bcd2bin(unsigned char bcd)
-{
-	return (bcd >> 4) * 10 + (bcd & 0xF);
-}
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_BLOCKDEV_MAJOR(AZTECH_CDROM_MAJOR);