Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 0 insertions, 3251 deletions

diff --git a/drivers/cdrom/cdu31a.c b/drivers/cdrom/cdu31a.c
deleted file mode 100644
index 2157c58755e0..000000000000
--- a/drivers/cdrom/cdu31a.c
+++ /dev/null
@@ -1,3251 +0,0 @@
-/*
-* Sony CDU-31A CDROM interface device driver.
-*
-* Corey Minyard (minyard@wf-rch.cirr.com)
-*
-* Colossians 3:17
-*
-*  See Documentation/cdrom/cdu31a for additional details about this driver.
-* 
-* The Sony interface device driver handles Sony interface CDROM
-* drives and provides a complete block-level interface as well as an
-* ioctl() interface compatible with the Sun (as specified in
-* include/linux/cdrom.h).  With this interface, CDROMs can be
-* accessed and standard audio CDs can be played back normally.
-*
-* WARNING - 	All autoprobes have been removed from the driver.
-*		You MUST configure the CDU31A via a LILO config
-*		at boot time or in lilo.conf.  I have the
-*		following in my lilo.conf:
-*
-*                append="cdu31a=0x1f88,0,PAS"
-*
-*		The first number is the I/O base address of the
-*		card.  The second is the interrupt (0 means none).
- *		The third should be "PAS" if on a Pro-Audio
- *		spectrum, or nothing if on something else.
- *
- * This interface is (unfortunately) a polled interface.  This is
- * because most Sony interfaces are set up with DMA and interrupts
- * disables.  Some (like mine) do not even have the capability to
- * handle interrupts or DMA.  For this reason you will see a lot of
- * the following:
- *
- *   retry_count = jiffies+ SONY_JIFFIES_TIMEOUT;
- *   while (time_before(jiffies, retry_count) && (! <some condition to wait for))
- *   {
- *      while (handle_sony_cd_attention())
- *         ;
- *
- *      sony_sleep();
- *   }
- *   if (the condition not met)
- *   {
- *      return an error;
- *   }
- *
- * This ugly hack waits for something to happen, sleeping a little
- * between every try.  it also handles attentions, which are
- * asynchronous events from the drive informing the driver that a disk
- * has been inserted, removed, etc.
- *
- * NEWS FLASH - The driver now supports interrupts but they are
- * turned off by default.  Use of interrupts is highly encouraged, it
- * cuts CPU usage down to a reasonable level.  I had DMA in for a while
- * but PC DMA is just too slow.  Better to just insb() it.
- *
- * One thing about these drives: They talk in MSF (Minute Second Frame) format.
- * There are 75 frames a second, 60 seconds a minute, and up to 75 minutes on a
- * disk.  The funny thing is that these are sent to the drive in BCD, but the
- * interface wants to see them in decimal.  A lot of conversion goes on.
- *
- * DRIVER SPECIAL FEATURES
- * -----------------------
- *
- * This section describes features beyond the normal audio and CD-ROM
- * functions of the drive.
- *
- * XA compatibility
- *
- * The driver should support XA disks for both the CDU31A and CDU33A.
- * It does this transparently, the using program doesn't need to set it.
- *
- * Multi-Session
- *
- * A multi-session disk looks just like a normal disk to the user.
- * Just mount one normally, and all the data should be there.
- * A special thanks to Koen for help with this!
- * 
- * Raw sector I/O
- *
- * Using the CDROMREADAUDIO it is possible to read raw audio and data
- * tracks.  Both operations return 2352 bytes per sector.  On the data
- * tracks, the first 12 bytes is not returned by the drive and the value
- * of that data is indeterminate.
- *
- *
- *  Copyright (C) 1993  Corey Minyard
- *
- *  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 of the License, 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.
- *
- * TODO: 
- *       CDs with form1 and form2 sectors cause problems
- *       with current read-ahead strategy.
- *
- * Credits:
- *    Heiko Eissfeldt <heiko@colossus.escape.de>
- *         For finding abug in the return of the track numbers.
- *         TOC processing redone for proper multisession support.
- *
- *
- *  It probably a little late to be adding a history, but I guess I
- *  will start.
- *
- *  10/24/95 - Added support for disabling the eject button when the
- *             drive is open.  Note that there is a small problem
- *             still here, if the eject button is pushed while the
- *             drive light is flashing, the drive will return a bad
- *             status and be reset.  It recovers, though.
- *
- *  03/07/97 - Fixed a problem with timers.
- *
- *
- *  18 Spetember 1997 -- Ported to Uniform CD-ROM driver by 
- *                 Heiko Eissfeldt <heiko@colossus.escape.de> with additional
- *                 changes by Erik Andersen <andersee@debian.org>
- *
- *  24 January 1998 -- Removed the scd_disc_status() function, which was now
- *                     just dead code left over from the port.
- *                          Erik Andersen <andersee@debian.org>
- *
- *  16 July 1998 -- Drive donated to Erik Andersen by John Kodis
- *                   <kodis@jagunet.com>.  Work begun on fixing driver to
- *                   work under 2.1.X.  Added temporary extra printks
- *                   which seem to slow it down enough to work.
- *
- *  9 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>
- *
- * 22 October 2004 -- Make the driver work in 2.6.X
- *		      Added workaround to fix hard lockups on eject
- *		      Fixed door locking problem after mounting empty drive
- *		      Set double-speed drives to double speed by default
- *		      Removed all readahead things - not needed anymore
- *			Ondrej Zary <rainbow@rainbow-software.org>
-*/
-
-#define DEBUG 1
-
-#include <linux/major.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/hdreg.h>
-#include <linux/genhd.h>
-#include <linux/ioport.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/cdrom.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/dma.h>
-
-#include "cdu31a.h"
-
-#define MAJOR_NR CDU31A_CDROM_MAJOR
-#include <linux/blkdev.h>
-
-#define CDU31A_MAX_CONSECUTIVE_ATTENTIONS 10
-
-#define PFX "CDU31A: "
-
-/*
-** Edit the following data to change interrupts, DMA channels, etc.
-** Default is polled and no DMA.  DMA is not recommended for double-speed
-** drives.
-*/
-static struct {
-	unsigned short base;	/* I/O Base Address */
-	short int_num;		/* Interrupt Number (-1 means scan for it,
-				   0 means don't use) */
-} cdu31a_addresses[] __initdata = {
-	{0}
-};
-
-static int handle_sony_cd_attention(void);
-static int read_subcode(void);
-static void sony_get_toc(void);
-static int scd_spinup(void);
-/*static int scd_open(struct inode *inode, struct file *filp);*/
-static int scd_open(struct cdrom_device_info *, int);
-static void do_sony_cd_cmd(unsigned char cmd,
-			   unsigned char *params,
-			   unsigned int num_params,
-			   unsigned char *result_buffer,
-			   unsigned int *result_size);
-static void size_to_buf(unsigned int size, unsigned char *buf);
-
-/* Parameters for the read-ahead. */
-static unsigned int sony_next_block;	/* Next 512 byte block offset */
-static unsigned int sony_blocks_left = 0;	/* Number of 512 byte blocks left
-						   in the current read command. */
-
-
-/* The base I/O address of the Sony Interface.  This is a variable (not a
-   #define) so it can be easily changed via some future ioctl() */
-static unsigned int cdu31a_port = 0;
-module_param(cdu31a_port, uint, 0);
-
-/*
- * The following are I/O addresses of the various registers for the drive.  The
- * comment for the base address also applies here.
- */
-static volatile unsigned short sony_cd_cmd_reg;
-static volatile unsigned short sony_cd_param_reg;
-static volatile unsigned short sony_cd_write_reg;
-static volatile unsigned short sony_cd_control_reg;
-static volatile unsigned short sony_cd_status_reg;
-static volatile unsigned short sony_cd_result_reg;
-static volatile unsigned short sony_cd_read_reg;
-static volatile unsigned short sony_cd_fifost_reg;
-
-static struct request_queue *cdu31a_queue;
-static DEFINE_SPINLOCK(cdu31a_lock); /* queue lock */
-
-static int sony_spun_up = 0;	/* Has the drive been spun up? */
-
-static int sony_speed = 0;	/* Last wanted speed */
-
-static int sony_xa_mode = 0;	/* Is an XA disk in the drive
-				   and the drive a CDU31A? */
-
-static int sony_raw_data_mode = 1;	/* 1 if data tracks, 0 if audio.
-					   For raw data reads. */
-
-static unsigned int sony_usage = 0;	/* How many processes have the
-					   drive open. */
-
-static int sony_pas_init = 0;	/* Initialize the Pro-Audio
-				   Spectrum card? */
-
-static struct s_sony_session_toc single_toc;	/* Holds the
-						   table of
-						   contents. */
-
-static struct s_all_sessions_toc sony_toc;	/* entries gathered from all
-						   sessions */
-
-static int sony_toc_read = 0;	/* Has the TOC been read for
-				   the drive? */
-
-static struct s_sony_subcode last_sony_subcode;	/* Points to the last
-						   subcode address read */
-
-static DECLARE_MUTEX(sony_sem);		/* Semaphore for drive hardware access */
-
-static int is_double_speed = 0;	/* does the drive support double speed ? */
-
-static int is_auto_eject = 1;	/* Door has been locked? 1=No/0=Yes */
-
-/*
- * The audio status uses the values from read subchannel data as specified
- * in include/linux/cdrom.h.
- */
-static volatile int sony_audio_status = CDROM_AUDIO_NO_STATUS;
-
-/*
- * The following are a hack for pausing and resuming audio play.  The drive
- * does not work as I would expect it, if you stop it then start it again,
- * the drive seeks back to the beginning and starts over.  This holds the
- * position during a pause so a resume can restart it.  It uses the
- * audio status variable above to tell if it is paused.
- */
-static unsigned volatile char cur_pos_msf[3] = { 0, 0, 0 };
-static unsigned volatile char final_pos_msf[3] = { 0, 0, 0 };
-
-/* What IRQ is the drive using?  0 if none. */
-static int cdu31a_irq = 0;
-module_param(cdu31a_irq, int, 0);
-
-/* The interrupt handler will wake this queue up when it gets an
-   interrupts. */
-static DECLARE_WAIT_QUEUE_HEAD(cdu31a_irq_wait);
-static int irq_flag = 0;
-
-static int curr_control_reg = 0;	/* Current value of the control register */
-
-/* A disk changed variable.  When a disk change is detected, it will
-   all be set to TRUE.  As the upper layers ask for disk_changed status
-   it will be cleared. */
-static char disk_changed;
-
-/* This was readahead_buffer once... Now it's used only for audio reads */
-static char audio_buffer[CD_FRAMESIZE_RAW];
-
-/* Used to time a short period to abort an operation after the
-   drive has been idle for a while.  This keeps the light on
-   the drive from flashing for very long. */
-static struct timer_list cdu31a_abort_timer;
-
-/* Marks if the timeout has started an abort read.  This is used
-   on entry to the drive to tell the code to read out the status
-   from the abort read. */
-static int abort_read_started = 0;
-
-/*
- * Uniform cdrom interface function
- * report back, if disc has changed from time of last request.
- */
-static int scd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
-{
-	int retval;
-
-	retval = disk_changed;
-	disk_changed = 0;
-
-	return retval;
-}
-
-/*
- * Uniform cdrom interface function
- * report back, if drive is ready
- */
-static int scd_drive_status(struct cdrom_device_info *cdi, int slot_nr)
-{
-	if (CDSL_CURRENT != slot_nr)
-		/* we have no changer support */
-		return -EINVAL;
-	if (sony_spun_up)
-		return CDS_DISC_OK;
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	if (scd_spinup() == 0)
-		sony_spun_up = 1;
-	up(&sony_sem);
-	return sony_spun_up ? CDS_DISC_OK : CDS_DRIVE_NOT_READY;
-}
-
-static inline void enable_interrupts(void)
-{
-	curr_control_reg |= (SONY_ATTN_INT_EN_BIT
-			     | SONY_RES_RDY_INT_EN_BIT
-			     | SONY_DATA_RDY_INT_EN_BIT);
-	outb(curr_control_reg, sony_cd_control_reg);
-}
-
-static inline void disable_interrupts(void)
-{
-	curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT
-			      | SONY_RES_RDY_INT_EN_BIT
-			      | SONY_DATA_RDY_INT_EN_BIT);
-	outb(curr_control_reg, sony_cd_control_reg);
-}
-
-/*
- * Wait a little while (used for polling the drive).  If in initialization,
- * setting a timeout doesn't work, so just loop for a while.
- */
-static inline void sony_sleep(void)
-{
-	if (cdu31a_irq <= 0) {
-		yield();
-	} else {		/* Interrupt driven */
-		DEFINE_WAIT(w);
-		int first = 1;
-
-		while (1) {
-			prepare_to_wait(&cdu31a_irq_wait, &w,
-					TASK_INTERRUPTIBLE);
-			if (first) {
-				enable_interrupts();
-				first = 0;
-			}
-
-			if (irq_flag != 0)
-				break;
-			if (!signal_pending(current)) {
-				schedule();
-				continue;
-			} else
-				disable_interrupts();
-			break;
-		}
-		finish_wait(&cdu31a_irq_wait, &w);
-		irq_flag = 0;
-	}
-}
-
-
-/*
- * The following are convenience routine to read various status and set
- * various conditions in the drive.
- */
-static inline int is_attention(void)
-{
-	return (inb(sony_cd_status_reg) & SONY_ATTN_BIT) != 0;
-}
-
-static inline int is_busy(void)
-{
-	return (inb(sony_cd_status_reg) & SONY_BUSY_BIT) != 0;
-}
-
-static inline int is_data_ready(void)
-{
-	return (inb(sony_cd_status_reg) & SONY_DATA_RDY_BIT) != 0;
-}
-
-static inline int is_data_requested(void)
-{
-	return (inb(sony_cd_status_reg) & SONY_DATA_REQUEST_BIT) != 0;
-}
-
-static inline int is_result_ready(void)
-{
-	return (inb(sony_cd_status_reg) & SONY_RES_RDY_BIT) != 0;
-}
-
-static inline int is_param_write_rdy(void)
-{
-	return (inb(sony_cd_fifost_reg) & SONY_PARAM_WRITE_RDY_BIT) != 0;
-}
-
-static inline int is_result_reg_not_empty(void)
-{
-	return (inb(sony_cd_fifost_reg) & SONY_RES_REG_NOT_EMP_BIT) != 0;
-}
-
-static inline void reset_drive(void)
-{
-	curr_control_reg = 0;
-	sony_toc_read = 0;
-	outb(SONY_DRIVE_RESET_BIT, sony_cd_control_reg);
-}
-
-/*
- * Uniform cdrom interface function
- * reset drive and return when it is ready
- */
-static int scd_reset(struct cdrom_device_info *cdi)
-{
-	unsigned long retry_count;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	reset_drive();
-
-	retry_count = jiffies + SONY_RESET_TIMEOUT;
-	while (time_before(jiffies, retry_count) && (!is_attention())) {
-		sony_sleep();
-	}
-
-	up(&sony_sem);
-	return 0;
-}
-
-static inline void clear_attention(void)
-{
-	outb(curr_control_reg | SONY_ATTN_CLR_BIT, sony_cd_control_reg);
-}
-
-static inline void clear_result_ready(void)
-{
-	outb(curr_control_reg | SONY_RES_RDY_CLR_BIT, sony_cd_control_reg);
-}
-
-static inline void clear_data_ready(void)
-{
-	outb(curr_control_reg | SONY_DATA_RDY_CLR_BIT,
-	     sony_cd_control_reg);
-}
-
-static inline void clear_param_reg(void)
-{
-	outb(curr_control_reg | SONY_PARAM_CLR_BIT, sony_cd_control_reg);
-}
-
-static inline unsigned char read_status_register(void)
-{
-	return inb(sony_cd_status_reg);
-}
-
-static inline unsigned char read_result_register(void)
-{
-	return inb(sony_cd_result_reg);
-}
-
-static inline unsigned char read_data_register(void)
-{
-	return inb(sony_cd_read_reg);
-}
-
-static inline void write_param(unsigned char param)
-{
-	outb(param, sony_cd_param_reg);
-}
-
-static inline void write_cmd(unsigned char cmd)
-{
-	outb(curr_control_reg | SONY_RES_RDY_INT_EN_BIT,
-	     sony_cd_control_reg);
-	outb(cmd, sony_cd_cmd_reg);
-}
-
-static irqreturn_t cdu31a_interrupt(int irq, void *dev_id)
-{
-	unsigned char val;
-
-	if (abort_read_started) {
-		/* We might be waiting for an abort to finish.  Don't
-		   disable interrupts yet, though, because we handle
-		   this one here. */
-		/* Clear out the result registers. */
-		while (is_result_reg_not_empty()) {
-			val = read_result_register();
-		}
-		clear_data_ready();
-		clear_result_ready();
-
-		/* Clear out the data */
-		while (is_data_requested()) {
-			val = read_data_register();
-		}
-		abort_read_started = 0;
-
-		/* If something was waiting, wake it up now. */
-		if (waitqueue_active(&cdu31a_irq_wait)) {
-			disable_interrupts();
-			irq_flag = 1;
-			wake_up_interruptible(&cdu31a_irq_wait);
-		}
-	} else if (waitqueue_active(&cdu31a_irq_wait)) {
-		disable_interrupts();
-		irq_flag = 1;
-		wake_up_interruptible(&cdu31a_irq_wait);
-	} else {
-		disable_interrupts();
-		printk(KERN_NOTICE PFX
-				"Got an interrupt but nothing was waiting\n");
-	}
-	return IRQ_HANDLED;
-}
-
-/*
- * give more verbose error messages
- */
-static unsigned char *translate_error(unsigned char err_code)
-{
-	static unsigned char errbuf[80];
-
-	switch (err_code) {
-		case 0x10: return "illegal command ";
-		case 0x11: return "illegal parameter ";
-
-		case 0x20: return "not loaded ";
-		case 0x21: return "no disc ";
-		case 0x22: return "not spinning ";
-		case 0x23: return "spinning ";
-		case 0x25: return "spindle servo ";
-		case 0x26: return "focus servo ";
-		case 0x29: return "eject mechanism ";
-		case 0x2a: return "audio playing ";
-		case 0x2c: return "emergency eject ";
-
-		case 0x30: return "focus ";
-		case 0x31: return "frame sync ";
-		case 0x32: return "subcode address ";
-		case 0x33: return "block sync ";
-		case 0x34: return "header address ";
-
-		case 0x40: return "illegal track read ";
-		case 0x41: return "mode 0 read ";
-		case 0x42: return "illegal mode read ";
-		case 0x43: return "illegal block size read ";
-		case 0x44: return "mode read ";
-		case 0x45: return "form read ";
-		case 0x46: return "leadout read ";
-		case 0x47: return "buffer overrun ";
-
-		case 0x53: return "unrecoverable CIRC ";
-		case 0x57: return "unrecoverable LECC ";
-
-		case 0x60: return "no TOC ";
-		case 0x61: return "invalid subcode data ";
-		case 0x63: return "focus on TOC read ";
-		case 0x64: return "frame sync on TOC read ";
-		case 0x65: return "TOC data ";
-
-		case 0x70: return "hardware failure ";
-		case 0x91: return "leadin ";
-		case 0x92: return "leadout ";
-		case 0x93: return "data track ";
-	}
-	sprintf(errbuf, "unknown 0x%02x ", err_code);
-	return errbuf;
-}
-
-/*
- * Set the drive parameters so the drive will auto-spin-up when a
- * disk is inserted.
- */
-static void set_drive_params(int want_doublespeed)
-{
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	unsigned char params[3];
-
-
-	params[0] = SONY_SD_AUTO_SPIN_DOWN_TIME;
-	params[1] = 0x00;	/* Never spin down the drive. */
-	do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-		       params, 2, res_reg, &res_size);
-	if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
-		printk(KERN_NOTICE PFX
-			"Unable to set spin-down time: 0x%2.2x\n", res_reg[1]);
-	}
-
-	params[0] = SONY_SD_MECH_CONTROL;
-	params[1] = SONY_AUTO_SPIN_UP_BIT;	/* Set auto spin up */
-
-	if (is_auto_eject)
-		params[1] |= SONY_AUTO_EJECT_BIT;
-
-	if (is_double_speed && want_doublespeed) {
-		params[1] |= SONY_DOUBLE_SPEED_BIT;	/* Set the drive to double speed if 
-							   possible */
-	}
-	do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-		       params, 2, res_reg, &res_size);
-	if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
-		printk(KERN_NOTICE PFX "Unable to set mechanical "
-				"parameters: 0x%2.2x\n", res_reg[1]);
-	}
-}
-
-/*
- * Uniform cdrom interface function
- * select reading speed for data access
- */
-static int scd_select_speed(struct cdrom_device_info *cdi, int speed)
-{
-	if (speed == 0)
-		sony_speed = 1;
-	else
-		sony_speed = speed - 1;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	set_drive_params(sony_speed);
-	up(&sony_sem);
-	return 0;
-}
-
-/*
- * Uniform cdrom interface function
- * lock or unlock eject button
- */
-static int scd_lock_door(struct cdrom_device_info *cdi, int lock)
-{
-	if (lock == 0) {
-		is_auto_eject = 1;
-	} else {
-		is_auto_eject = 0;
-	}
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	set_drive_params(sony_speed);
-	up(&sony_sem);
-	return 0;
-}
-
-/*
- * This code will reset the drive and attempt to restore sane parameters.
- */
-static void restart_on_error(void)
-{
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	unsigned long retry_count;
-
-
-	printk(KERN_NOTICE PFX "Resetting drive on error\n");
-	reset_drive();
-	retry_count = jiffies + SONY_RESET_TIMEOUT;
-	while (time_before(jiffies, retry_count) && (!is_attention())) {
-		sony_sleep();
-	}
-	set_drive_params(sony_speed);
-	do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
-	if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
-		printk(KERN_NOTICE PFX "Unable to spin up drive: 0x%2.2x\n",
-		       res_reg[1]);
-	}
-
-	msleep(2000);
-
-	sony_get_toc();
-}
-
-/*
- * This routine writes data to the parameter register.  Since this should
- * happen fairly fast, it is polled with no OS waits between.
- */
-static int write_params(unsigned char *params, int num_params)
-{
-	unsigned int retry_count;
-
-
-	retry_count = SONY_READY_RETRIES;
-	while ((retry_count > 0) && (!is_param_write_rdy())) {
-		retry_count--;
-	}
-	if (!is_param_write_rdy()) {
-		return -EIO;
-	}
-
-	while (num_params > 0) {
-		write_param(*params);
-		params++;
-		num_params--;
-	}
-
-	return 0;
-}
-
-
-/*
- * The following reads data from the command result register.  It is a
- * fairly complex routine, all status info flows back through this
- * interface.  The algorithm is stolen directly from the flowcharts in
- * the drive manual.
- */
-static void
-get_result(unsigned char *result_buffer, unsigned int *result_size)
-{
-	unsigned char a, b;
-	int i;
-	unsigned long retry_count;
-
-
-	while (handle_sony_cd_attention());
-	/* Wait for the result data to be ready */
-	retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-	while (time_before(jiffies, retry_count)
-	       && (is_busy() || (!(is_result_ready())))) {
-		sony_sleep();
-
-		while (handle_sony_cd_attention());
-	}
-	if (is_busy() || (!(is_result_ready()))) {
-		pr_debug(PFX "timeout out %d\n", __LINE__);
-		result_buffer[0] = 0x20;
-		result_buffer[1] = SONY_TIMEOUT_OP_ERR;
-		*result_size = 2;
-		return;
-	}
-
-	/*
-	 * Get the first two bytes.  This determines what else needs
-	 * to be done.
-	 */
-	clear_result_ready();
-	a = read_result_register();
-	*result_buffer = a;
-	result_buffer++;
-
-	/* Check for block error status result. */
-	if ((a & 0xf0) == 0x50) {
-		*result_size = 1;
-		return;
-	}
-
-	b = read_result_register();
-	*result_buffer = b;
-	result_buffer++;
-	*result_size = 2;
-
-	/*
-	 * 0x20 means an error occurred.  Byte 2 will have the error code.
-	 * Otherwise, the command succeeded, byte 2 will have the count of
-	 * how many more status bytes are coming.
-	 *
-	 * The result register can be read 10 bytes at a time, a wait for
-	 * result ready to be asserted must be done between every 10 bytes.
-	 */
-	if ((a & 0xf0) != 0x20) {
-		if (b > 8) {
-			for (i = 0; i < 8; i++) {
-				*result_buffer = read_result_register();
-				result_buffer++;
-				(*result_size)++;
-			}
-			b = b - 8;
-
-			while (b > 10) {
-				retry_count = SONY_READY_RETRIES;
-				while ((retry_count > 0)
-				       && (!is_result_ready())) {
-					retry_count--;
-				}
-				if (!is_result_ready()) {
-					pr_debug(PFX "timeout out %d\n",
-					       __LINE__);
-					result_buffer[0] = 0x20;
-					result_buffer[1] =
-					    SONY_TIMEOUT_OP_ERR;
-					*result_size = 2;
-					return;
-				}
-
-				clear_result_ready();
-
-				for (i = 0; i < 10; i++) {
-					*result_buffer =
-					    read_result_register();
-					result_buffer++;
-					(*result_size)++;
-				}
-				b = b - 10;
-			}
-
-			if (b > 0) {
-				retry_count = SONY_READY_RETRIES;
-				while ((retry_count > 0)
-				       && (!is_result_ready())) {
-					retry_count--;
-				}
-				if (!is_result_ready()) {
-					pr_debug(PFX "timeout out %d\n",
-					       __LINE__);
-					result_buffer[0] = 0x20;
-					result_buffer[1] =
-					    SONY_TIMEOUT_OP_ERR;
-					*result_size = 2;
-					return;
-				}
-			}
-		}
-
-		while (b > 0) {
-			*result_buffer = read_result_register();
-			result_buffer++;
-			(*result_size)++;
-			b--;
-		}
-	}
-}
-
-/*
- * Do a command that does not involve data transfer.  This routine must
- * be re-entrant from the same task to support being called from the
- * data operation code when an error occurs.
- */
-static void
-do_sony_cd_cmd(unsigned char cmd,
-	       unsigned char *params,
-	       unsigned int num_params,
-	       unsigned char *result_buffer, unsigned int *result_size)
-{
-	unsigned long retry_count;
-	int num_retries = 0;
-
-retry_cd_operation:
-
-	while (handle_sony_cd_attention());
-
-	retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-	while (time_before(jiffies, retry_count) && (is_busy())) {
-		sony_sleep();
-
-		while (handle_sony_cd_attention());
-	}
-	if (is_busy()) {
-		pr_debug(PFX "timeout out %d\n", __LINE__);
-		result_buffer[0] = 0x20;
-		result_buffer[1] = SONY_TIMEOUT_OP_ERR;
-		*result_size = 2;
-	} else {
-		clear_result_ready();
-		clear_param_reg();
-
-		write_params(params, num_params);
-		write_cmd(cmd);
-
-		get_result(result_buffer, result_size);
-	}
-
-	if (((result_buffer[0] & 0xf0) == 0x20)
-	    && (num_retries < MAX_CDU31A_RETRIES)) {
-		num_retries++;
-		msleep(100);
-		goto retry_cd_operation;
-	}
-}
-
-
-/*
- * Handle an attention from the drive.  This will return 1 if it found one
- * or 0 if not (if one is found, the caller might want to call again).
- *
- * This routine counts the number of consecutive times it is called
- * (since this is always called from a while loop until it returns
- * a 0), and returns a 0 if it happens too many times.  This will help
- * prevent a lockup.
- */
-static int handle_sony_cd_attention(void)
-{
-	unsigned char atten_code;
-	static int num_consecutive_attentions = 0;
-	volatile int val;
-
-
-#if 0
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-#endif
-	if (is_attention()) {
-		if (num_consecutive_attentions >
-		    CDU31A_MAX_CONSECUTIVE_ATTENTIONS) {
-			printk(KERN_NOTICE PFX "Too many consecutive "
-				"attentions: %d\n", num_consecutive_attentions);
-			num_consecutive_attentions = 0;
-			pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__,
-			       __LINE__);
-			return 0;
-		}
-
-		clear_attention();
-		atten_code = read_result_register();
-
-		switch (atten_code) {
-			/* Someone changed the CD.  Mark it as changed */
-		case SONY_MECH_LOADED_ATTN:
-			disk_changed = 1;
-			sony_toc_read = 0;
-			sony_audio_status = CDROM_AUDIO_NO_STATUS;
-			sony_blocks_left = 0;
-			break;
-
-		case SONY_SPIN_DOWN_COMPLETE_ATTN:
-			/* Mark the disk as spun down. */
-			sony_spun_up = 0;
-			break;
-
-		case SONY_AUDIO_PLAY_DONE_ATTN:
-			sony_audio_status = CDROM_AUDIO_COMPLETED;
-			read_subcode();
-			break;
-
-		case SONY_EJECT_PUSHED_ATTN:
-			if (is_auto_eject) {
-				sony_audio_status = CDROM_AUDIO_INVALID;
-			}
-			break;
-
-		case SONY_LEAD_IN_ERR_ATTN:
-		case SONY_LEAD_OUT_ERR_ATTN:
-		case SONY_DATA_TRACK_ERR_ATTN:
-		case SONY_AUDIO_PLAYBACK_ERR_ATTN:
-			sony_audio_status = CDROM_AUDIO_ERROR;
-			break;
-		}
-
-		num_consecutive_attentions++;
-		pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-		return 1;
-	} else if (abort_read_started) {
-		while (is_result_reg_not_empty()) {
-			val = read_result_register();
-		}
-		clear_data_ready();
-		clear_result_ready();
-		/* Clear out the data */
-		while (is_data_requested()) {
-			val = read_data_register();
-		}
-		abort_read_started = 0;
-		pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-		return 1;
-	}
-
-	num_consecutive_attentions = 0;
-#if 0
-	pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-#endif
-	return 0;
-}
-
-
-/* Convert from an integer 0-99 to BCD */
-static inline unsigned int int_to_bcd(unsigned int val)
-{
-	int retval;
-
-
-	retval = (val / 10) << 4;
-	retval = retval | val % 10;
-	return retval;
-}
-
-
-/* Convert from BCD to an integer from 0-99 */
-static unsigned int bcd_to_int(unsigned int bcd)
-{
-	return (((bcd >> 4) & 0x0f) * 10) + (bcd & 0x0f);
-}
-
-
-/*
- * Convert a logical sector value (like the OS would want to use for
- * a block device) to an MSF format.
- */
-static void log_to_msf(unsigned int log, unsigned char *msf)
-{
-	log = log + LOG_START_OFFSET;
-	msf[0] = int_to_bcd(log / 4500);
-	log = log % 4500;
-	msf[1] = int_to_bcd(log / 75);
-	msf[2] = int_to_bcd(log % 75);
-}
-
-
-/*
- * Convert an MSF format to a logical sector.
- */
-static unsigned int msf_to_log(unsigned char *msf)
-{
-	unsigned int log;
-
-
-	log = msf[2];
-	log += msf[1] * 75;
-	log += msf[0] * 4500;
-	log = log - LOG_START_OFFSET;
-
-	return log;
-}
-
-
-/*
- * Take in integer size value and put it into a buffer like
- * the drive would want to see a number-of-sector value.
- */
-static void size_to_buf(unsigned int size, unsigned char *buf)
-{
-	buf[0] = size / 65536;
-	size = size % 65536;
-	buf[1] = size / 256;
-	buf[2] = size % 256;
-}
-
-/* Starts a read operation. Returns 0 on success and 1 on failure. 
-   The read operation used here allows multiple sequential sectors 
-   to be read and status returned for each sector.  The driver will
-   read the output one at a time as the requests come and abort the
-   operation if the requested sector is not the next one from the
-   drive. */
-static int
-start_request(unsigned int sector, unsigned int nsect)
-{
-	unsigned char params[6];
-	unsigned long retry_count;
-
-
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-	log_to_msf(sector, params);
-	size_to_buf(nsect, &params[3]);
-
-	/*
-	 * Clear any outstanding attentions and wait for the drive to
-	 * complete any pending operations.
-	 */
-	while (handle_sony_cd_attention());
-
-	retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-	while (time_before(jiffies, retry_count) && (is_busy())) {
-		sony_sleep();
-
-		while (handle_sony_cd_attention());
-	}
-
-	if (is_busy()) {
-		printk(KERN_NOTICE PFX "Timeout while waiting "
-				"to issue command\n");
-		pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-		return 1;
-	} else {
-		/* Issue the command */
-		clear_result_ready();
-		clear_param_reg();
-
-		write_params(params, 6);
-		write_cmd(SONY_READ_BLKERR_STAT_CMD);
-
-		sony_blocks_left = nsect * 4;
-		sony_next_block = sector * 4;
-		pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-		return 0;
-	}
-	pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-}
-
-/* Abort a pending read operation.  Clear all the drive status variables. */
-static void abort_read(void)
-{
-	unsigned char result_reg[2];
-	int result_size;
-	volatile int val;
-
-
-	do_sony_cd_cmd(SONY_ABORT_CMD, NULL, 0, result_reg, &result_size);
-	if ((result_reg[0] & 0xf0) == 0x20) {
-		printk(KERN_ERR PFX "Aborting read, %s error\n",
-		       translate_error(result_reg[1]));
-	}
-
-	while (is_result_reg_not_empty()) {
-		val = read_result_register();
-	}
-	clear_data_ready();
-	clear_result_ready();
-	/* Clear out the data */
-	while (is_data_requested()) {
-		val = read_data_register();
-	}
-
-	sony_blocks_left = 0;
-}
-
-/* Called when the timer times out.  This will abort the
-   pending read operation. */
-static void handle_abort_timeout(unsigned long data)
-{
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-	/* If it is in use, ignore it. */
-	if (down_trylock(&sony_sem) == 0) {
-		/* We can't use abort_read(), because it will sleep
-		   or schedule in the timer interrupt.  Just start
-		   the operation, finish it on the next access to
-		   the drive. */
-		clear_result_ready();
-		clear_param_reg();
-		write_cmd(SONY_ABORT_CMD);
-
-		sony_blocks_left = 0;
-		abort_read_started = 1;
-		up(&sony_sem);
-	}
-	pr_debug(PFX "Leaving %s\n", __FUNCTION__);
-}
-
-/* Actually get one sector of data from the drive. */
-static void
-input_data_sector(char *buffer)
-{
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-
-	/* If an XA disk on a CDU31A, skip the first 12 bytes of data from
-	   the disk.  The real data is after that. We can use audio_buffer. */
-	if (sony_xa_mode)
-		insb(sony_cd_read_reg, audio_buffer, CD_XA_HEAD);
-
-	clear_data_ready();
-
-	insb(sony_cd_read_reg, buffer, 2048);
-
-	/* If an XA disk, we have to clear out the rest of the unused
-	   error correction data. We can use audio_buffer for that. */
-	if (sony_xa_mode)
-		insb(sony_cd_read_reg, audio_buffer, CD_XA_TAIL);
-
-	pr_debug(PFX "Leaving %s\n", __FUNCTION__);
-}
-
-/* read data from the drive.  Note the nsect must be <= 4. */
-static void
-read_data_block(char *buffer,
-		unsigned int block,
-		unsigned int nblocks,
-		unsigned char res_reg[], int *res_size)
-{
-	unsigned long retry_count;
-
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-
-	res_reg[0] = 0;
-	res_reg[1] = 0;
-	*res_size = 0;
-
-	/* Wait for the drive to tell us we have something */
-	retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-	while (time_before(jiffies, retry_count) && !(is_data_ready())) {
-		while (handle_sony_cd_attention());
-
-		sony_sleep();
-	}
-	if (!(is_data_ready())) {
-		if (is_result_ready()) {
-			get_result(res_reg, res_size);
-			if ((res_reg[0] & 0xf0) != 0x20) {
-				printk(KERN_NOTICE PFX "Got result that should"
-					" have been error: %d\n", res_reg[0]);
-				res_reg[0] = 0x20;
-				res_reg[1] = SONY_BAD_DATA_ERR;
-				*res_size = 2;
-			}
-			abort_read();
-		} else {
-			pr_debug(PFX "timeout out %d\n", __LINE__);
-			res_reg[0] = 0x20;
-			res_reg[1] = SONY_TIMEOUT_OP_ERR;
-			*res_size = 2;
-			abort_read();
-		}
-	} else {
-		input_data_sector(buffer);
-		sony_blocks_left -= nblocks;
-		sony_next_block += nblocks;
-
-		/* Wait for the status from the drive. */
-		retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-		while (time_before(jiffies, retry_count)
-		       && !(is_result_ready())) {
-			while (handle_sony_cd_attention());
-
-			sony_sleep();
-		}
-
-		if (!is_result_ready()) {
-			pr_debug(PFX "timeout out %d\n", __LINE__);
-			res_reg[0] = 0x20;
-			res_reg[1] = SONY_TIMEOUT_OP_ERR;
-			*res_size = 2;
-			abort_read();
-		} else {
-			get_result(res_reg, res_size);
-
-			/* If we got a buffer status, handle that. */
-			if ((res_reg[0] & 0xf0) == 0x50) {
-
-				if ((res_reg[0] ==
-				     SONY_NO_CIRC_ERR_BLK_STAT)
-				    || (res_reg[0] ==
-					SONY_NO_LECC_ERR_BLK_STAT)
-				    || (res_reg[0] ==
-					SONY_RECOV_LECC_ERR_BLK_STAT)) {
-					/* nothing here */
-				} else {
-					printk(KERN_ERR PFX "Data block "
-						"error: 0x%x\n", res_reg[0]);
-					res_reg[0] = 0x20;
-					res_reg[1] = SONY_BAD_DATA_ERR;
-					*res_size = 2;
-				}
-
-				/* Final transfer is done for read command, get final result. */
-				if (sony_blocks_left == 0) {
-					get_result(res_reg, res_size);
-				}
-			} else if ((res_reg[0] & 0xf0) != 0x20) {
-				/* The drive gave me bad status, I don't know what to do.
-				   Reset the driver and return an error. */
-				printk(KERN_ERR PFX "Invalid block "
-					"status: 0x%x\n", res_reg[0]);
-				restart_on_error();
-				res_reg[0] = 0x20;
-				res_reg[1] = SONY_BAD_DATA_ERR;
-				*res_size = 2;
-			}
-		}
-	}
-	pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-}
-
-
-/*
- * The OS calls this to perform a read or write operation to the drive.
- * Write obviously fail.  Reads to a read ahead of sony_buffer_size
- * bytes to help speed operations.  This especially helps since the OS
- * uses 1024 byte blocks and the drive uses 2048 byte blocks.  Since most
- * data access on a CD is done sequentially, this saves a lot of operations.
- */
-static void do_cdu31a_request(request_queue_t * q)
-{
-	struct request *req;
-	int block, nblock, num_retries;
-	unsigned char res_reg[12];
-	unsigned int res_size;
-
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-
-	spin_unlock_irq(q->queue_lock);
-	if (down_interruptible(&sony_sem)) {
-		spin_lock_irq(q->queue_lock);
-		return;
-	}
-
-	/* Get drive status before doing anything. */
-	while (handle_sony_cd_attention());
-
-	/* Make sure we have a valid TOC. */
-	sony_get_toc();
-
-
-	/* Make sure the timer is cancelled. */
-	del_timer(&cdu31a_abort_timer);
-
-	while (1) {
-		/*
-		 * The beginning here is stolen from the hard disk driver.  I hope
-		 * it's right.
-		 */
-		req = elv_next_request(q);
-		if (!req)
-			goto end_do_cdu31a_request;
-
-		if (!sony_spun_up)
-			scd_spinup();
-
-		block = req->sector;
-		nblock = req->nr_sectors;
-		pr_debug(PFX "request at block %d, length %d blocks\n",
-			block, nblock);
-		if (!sony_toc_read) {
-			printk(KERN_NOTICE PFX "TOC not read\n");
-			end_request(req, 0);
-			continue;
-		}
-
-		/* WTF??? */
-		if (!blk_fs_request(req)) {
-			end_request(req, 0);
-			continue;
-		}
-		if (rq_data_dir(req) == WRITE) {
-			end_request(req, 0);
-			continue;
-		}
-
-		/*
-		 * If the block address is invalid or the request goes beyond the end of
-		 * the media, return an error.
-		 */
-		if (((block + nblock) / 4) >= sony_toc.lead_out_start_lba) {
-			printk(KERN_NOTICE PFX "Request past end of media\n");
-			end_request(req, 0);
-			continue;
-		}
-
-		if (nblock > 4)
-			nblock = 4;
-		num_retries = 0;
-
-	try_read_again:
-		while (handle_sony_cd_attention());
-
-		if (!sony_toc_read) {
-			printk(KERN_NOTICE PFX "TOC not read\n");
-			end_request(req, 0);
-			continue;
-		}
-
-		/* If no data is left to be read from the drive, start the
-		   next request. */
-		if (sony_blocks_left == 0) {
-			if (start_request(block / 4, nblock / 4)) {
-				end_request(req, 0);
-				continue;
-			}
-		}
-		/* If the requested block is not the next one waiting in
-		   the driver, abort the current operation and start a
-		   new one. */
-		else if (block != sony_next_block) {
-			pr_debug(PFX "Read for block %d, expected %d\n",
-				 block, sony_next_block);
-			abort_read();
-			if (!sony_toc_read) {
-				printk(KERN_NOTICE PFX "TOC not read\n");
-				end_request(req, 0);
-				continue;
-			}
-			if (start_request(block / 4, nblock / 4)) {
-				printk(KERN_NOTICE PFX "start request failed\n");
-				end_request(req, 0);
-				continue;
-			}
-		}
-
-		read_data_block(req->buffer, block, nblock, res_reg, &res_size);
-
-		if (res_reg[0] != 0x20) {
-			if (!end_that_request_first(req, 1, nblock)) {
-				spin_lock_irq(q->queue_lock);
-				blkdev_dequeue_request(req);
-				end_that_request_last(req, 1);
-				spin_unlock_irq(q->queue_lock);
-			}
-			continue;
-		}
-
-		if (num_retries > MAX_CDU31A_RETRIES) {
-			end_request(req, 0);
-			continue;
-		}
-
-		num_retries++;
-		if (res_reg[1] == SONY_NOT_SPIN_ERR) {
-			do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
-					&res_size);
-		} else {
-			printk(KERN_NOTICE PFX "%s error for block %d, nblock %d\n",
-				 translate_error(res_reg[1]), block, nblock);
-		}
-		goto try_read_again;
-	}
-      end_do_cdu31a_request:
-#if 0
-	/* After finished, cancel any pending operations. */
-	abort_read();
-#else
-	/* Start a timer to time out after a while to disable
-	   the read. */
-	cdu31a_abort_timer.expires = jiffies + 2 * HZ;	/* Wait 2 seconds */
-	add_timer(&cdu31a_abort_timer);
-#endif
-
-	up(&sony_sem);
-	spin_lock_irq(q->queue_lock);
-	pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__);
-}
-
-
-/*
- * Read the table of contents from the drive and set up TOC if
- * successful.
- */
-static void sony_get_toc(void)
-{
-	unsigned char res_reg[2];
-	unsigned int res_size;
-	unsigned char parms[1];
-	int session;
-	int num_spin_ups;
-	int totaltracks = 0;
-	int mint = 99;
-	int maxt = 0;
-
-	pr_debug(PFX "Entering %s\n", __FUNCTION__);
-
-	num_spin_ups = 0;
-	if (!sony_toc_read) {
-	      respinup_on_gettoc:
-		/* Ignore the result, since it might error if spinning already. */
-		do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		/* The drive sometimes returns error 0.  I don't know why, but ignore
-		   it.  It seems to mean the drive has already done the operation. */
-		if ((res_size < 2)
-		    || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
-			/* If the drive is already playing, it's ok.  */
-			if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
-			    || (res_reg[1] == 0)) {
-				goto gettoc_drive_spinning;
-			}
-
-			/* If the drive says it is not spun up (even though we just did it!)
-			   then retry the operation at least a few times. */
-			if ((res_reg[1] == SONY_NOT_SPIN_ERR)
-			    && (num_spin_ups < MAX_CDU31A_RETRIES)) {
-				num_spin_ups++;
-				goto respinup_on_gettoc;
-			}
-
-			printk("cdu31a: Error reading TOC: %x %s\n",
-			       res_reg[0], translate_error(res_reg[1]));
-			return;
-		}
-
-	      gettoc_drive_spinning:
-
-		/* The idea here is we keep asking for sessions until the command
-		   fails.  Then we know what the last valid session on the disk is.
-		   No need to check session 0, since session 0 is the same as session
-		   1; the command returns different information if you give it 0. 
-		 */
-#if DEBUG
-		memset(&sony_toc, 0x0e, sizeof(sony_toc));
-		memset(&single_toc, 0x0f, sizeof(single_toc));
-#endif
-		session = 1;
-		while (1) {
-/* This seems to slow things down enough to make it work.  This
- * appears to be a problem in do_sony_cd_cmd.  This printk seems 
- * to address the symptoms...  -Erik */
-			pr_debug(PFX "Trying session %d\n", session);
-			parms[0] = session;
-			do_sony_cd_cmd(SONY_READ_TOC_SPEC_CMD,
-				       parms, 1, res_reg, &res_size);
-
-			pr_debug(PFX "%2.2x %2.2x\n", res_reg[0], res_reg[1]);
-
-			if ((res_size < 2)
-			    || ((res_reg[0] & 0xf0) == 0x20)) {
-				/* An error reading the TOC, this must be past the last session. */
-				if (session == 1)
-					printk
-					    ("Yikes! Couldn't read any sessions!");
-				break;
-			}
-			pr_debug(PFX "Reading session %d\n", session);
-
-			parms[0] = session;
-			do_sony_cd_cmd(SONY_REQ_TOC_DATA_SPEC_CMD,
-				       parms,
-				       1,
-				       (unsigned char *) &single_toc,
-				       &res_size);
-			if ((res_size < 2)
-			    || ((single_toc.exec_status[0] & 0xf0) ==
-				0x20)) {
-				printk(KERN_ERR PFX "Error reading "
-						"session %d: %x %s\n",
-				     session, single_toc.exec_status[0],
-				     translate_error(single_toc.
-						     exec_status[1]));
-				/* An error reading the TOC.  Return without sony_toc_read
-				   set. */
-				return;
-			}
-			pr_debug(PFX "add0 %01x, con0 %01x, poi0 %02x, "
-					"1st trk %d, dsktyp %x, dum0 %x\n",
-			     single_toc.address0, single_toc.control0,
-			     single_toc.point0,
-			     bcd_to_int(single_toc.first_track_num),
-			     single_toc.disk_type, single_toc.dummy0);
-			pr_debug(PFX "add1 %01x, con1 %01x, poi1 %02x, "
-					"lst trk %d, dummy1 %x, dum2 %x\n",
-			     single_toc.address1, single_toc.control1,
-			     single_toc.point1,
-			     bcd_to_int(single_toc.last_track_num),
-			     single_toc.dummy1, single_toc.dummy2);
-			pr_debug(PFX "add2 %01x, con2 %01x, poi2 %02x "
-				"leadout start min %d, sec %d, frame %d\n",
-			     single_toc.address2, single_toc.control2,
-			     single_toc.point2,
-			     bcd_to_int(single_toc.lead_out_start_msf[0]),
-			     bcd_to_int(single_toc.lead_out_start_msf[1]),
-			     bcd_to_int(single_toc.lead_out_start_msf[2]));
-			if (res_size > 18 && single_toc.pointb0 > 0xaf)
-				pr_debug(PFX "addb0 %01x, conb0 %01x, poib0 %02x, nextsession min %d, sec %d, frame %d\n"
-				     "#mode5_ptrs %02d, max_start_outer_leadout_msf min %d, sec %d, frame %d\n",
-				     single_toc.addressb0,
-				     single_toc.controlb0,
-				     single_toc.pointb0,
-				     bcd_to_int(single_toc.
-						next_poss_prog_area_msf
-						[0]),
-				     bcd_to_int(single_toc.
-						next_poss_prog_area_msf
-						[1]),
-				     bcd_to_int(single_toc.
-						next_poss_prog_area_msf
-						[2]),
-				     single_toc.num_mode_5_pointers,
-				     bcd_to_int(single_toc.
-						max_start_outer_leadout_msf
-						[0]),
-				     bcd_to_int(single_toc.
-						max_start_outer_leadout_msf
-						[1]),
-				     bcd_to_int(single_toc.
-						max_start_outer_leadout_msf
-						[2]));
-			if (res_size > 27 && single_toc.pointb1 > 0xaf)
-				pr_debug(PFX "addb1 %01x, conb1 %01x, poib1 %02x, %x %x %x %x #skipint_ptrs %d, #skiptrkassign %d %x\n",
-				     single_toc.addressb1,
-				     single_toc.controlb1,
-				     single_toc.pointb1,
-				     single_toc.dummyb0_1[0],
-				     single_toc.dummyb0_1[1],
-				     single_toc.dummyb0_1[2],
-				     single_toc.dummyb0_1[3],
-				     single_toc.num_skip_interval_pointers,
-				     single_toc.num_skip_track_assignments,
-				     single_toc.dummyb0_2);
-			if (res_size > 36 && single_toc.pointb2 > 0xaf)
-				pr_debug(PFX "addb2 %01x, conb2 %01x, poib2 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
-				     single_toc.addressb2,
-				     single_toc.controlb2,
-				     single_toc.pointb2,
-				     single_toc.tracksb2[0],
-				     single_toc.tracksb2[1],
-				     single_toc.tracksb2[2],
-				     single_toc.tracksb2[3],
-				     single_toc.tracksb2[4],
-				     single_toc.tracksb2[5],
-				     single_toc.tracksb2[6]);
-			if (res_size > 45 && single_toc.pointb3 > 0xaf)
-				pr_debug(PFX "addb3 %01x, conb3 %01x, poib3 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
-				     single_toc.addressb3,
-				     single_toc.controlb3,
-				     single_toc.pointb3,
-				     single_toc.tracksb3[0],
-				     single_toc.tracksb3[1],
-				     single_toc.tracksb3[2],
-				     single_toc.tracksb3[3],
-				     single_toc.tracksb3[4],
-				     single_toc.tracksb3[5],
-				     single_toc.tracksb3[6]);
-			if (res_size > 54 && single_toc.pointb4 > 0xaf)
-				pr_debug(PFX "addb4 %01x, conb4 %01x, poib4 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
-				     single_toc.addressb4,
-				     single_toc.controlb4,
-				     single_toc.pointb4,
-				     single_toc.tracksb4[0],
-				     single_toc.tracksb4[1],
-				     single_toc.tracksb4[2],
-				     single_toc.tracksb4[3],
-				     single_toc.tracksb4[4],
-				     single_toc.tracksb4[5],
-				     single_toc.tracksb4[6]);
-			if (res_size > 63 && single_toc.pointc0 > 0xaf)
-				pr_debug(PFX "addc0 %01x, conc0 %01x, poic0 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
-				     single_toc.addressc0,
-				     single_toc.controlc0,
-				     single_toc.pointc0,
-				     single_toc.dummyc0[0],
-				     single_toc.dummyc0[1],
-				     single_toc.dummyc0[2],
-				     single_toc.dummyc0[3],
-				     single_toc.dummyc0[4],
-				     single_toc.dummyc0[5],
-				     single_toc.dummyc0[6]);
-#undef DEBUG
-#define DEBUG 0
-
-			sony_toc.lead_out_start_msf[0] =
-			    bcd_to_int(single_toc.lead_out_start_msf[0]);
-			sony_toc.lead_out_start_msf[1] =
-			    bcd_to_int(single_toc.lead_out_start_msf[1]);
-			sony_toc.lead_out_start_msf[2] =
-			    bcd_to_int(single_toc.lead_out_start_msf[2]);
-			sony_toc.lead_out_start_lba =
-			    single_toc.lead_out_start_lba =
-			    msf_to_log(sony_toc.lead_out_start_msf);
-
-			/* For points that do not exist, move the data over them
-			   to the right location. */
-			if (single_toc.pointb0 != 0xb0) {
-				memmove(((char *) &single_toc) + 27,
-					((char *) &single_toc) + 18,
-					res_size - 18);
-				res_size += 9;
-			} else if (res_size > 18) {
-				sony_toc.lead_out_start_msf[0] =
-				    bcd_to_int(single_toc.
-					       max_start_outer_leadout_msf
-					       [0]);
-				sony_toc.lead_out_start_msf[1] =
-				    bcd_to_int(single_toc.
-					       max_start_outer_leadout_msf
-					       [1]);
-				sony_toc.lead_out_start_msf[2] =
-				    bcd_to_int(single_toc.
-					       max_start_outer_leadout_msf
-					       [2]);
-				sony_toc.lead_out_start_lba =
-				    msf_to_log(sony_toc.
-					       lead_out_start_msf);
-			}
-			if (single_toc.pointb1 != 0xb1) {
-				memmove(((char *) &single_toc) + 36,
-					((char *) &single_toc) + 27,
-					res_size - 27);
-				res_size += 9;
-			}
-			if (single_toc.pointb2 != 0xb2) {
-				memmove(((char *) &single_toc) + 45,
-					((char *) &single_toc) + 36,
-					res_size - 36);
-				res_size += 9;
-			}
-			if (single_toc.pointb3 != 0xb3) {
-				memmove(((char *) &single_toc) + 54,
-					((char *) &single_toc) + 45,
-					res_size - 45);
-				res_size += 9;
-			}
-			if (single_toc.pointb4 != 0xb4) {
-				memmove(((char *) &single_toc) + 63,
-					((char *) &single_toc) + 54,
-					res_size - 54);
-				res_size += 9;
-			}
-			if (single_toc.pointc0 != 0xc0) {
-				memmove(((char *) &single_toc) + 72,
-					((char *) &single_toc) + 63,
-					res_size - 63);
-				res_size += 9;
-			}
-#if DEBUG
-			printk(PRINT_INFO PFX "start track lba %u,  "
-					"leadout start lba %u\n",
-			     single_toc.start_track_lba,
-			     single_toc.lead_out_start_lba);
-			{
-				int i;
-				for (i = 0;
-				     i <
-				     1 +
-				     bcd_to_int(single_toc.last_track_num)
-				     -
-				     bcd_to_int(single_toc.
-						first_track_num); i++) {
-					printk(KERN_INFO PFX "trk %02d: add 0x%01x, con 0x%01x,  track %02d, start min %02d, sec %02d, frame %02d\n",
-					     i,
-					     single_toc.tracks[i].address,
-					     single_toc.tracks[i].control,
-					     bcd_to_int(single_toc.
-							tracks[i].track),
-					     bcd_to_int(single_toc.
-							tracks[i].
-							track_start_msf
-							[0]),
-					     bcd_to_int(single_toc.
-							tracks[i].
-							track_start_msf
-							[1]),
-					     bcd_to_int(single_toc.
-							tracks[i].
-							track_start_msf
-							[2]));
-					if (mint >
-					    bcd_to_int(single_toc.
-						       tracks[i].track))
-						mint =
-						    bcd_to_int(single_toc.
-							       tracks[i].
-							       track);
-					if (maxt <
-					    bcd_to_int(single_toc.
-						       tracks[i].track))
-						maxt =
-						    bcd_to_int(single_toc.
-							       tracks[i].
-							       track);
-				}
-				printk(KERN_INFO PFX "min track number %d,  "
-						"max track number %d\n",
-				     mint, maxt);
-			}
-#endif
-
-			/* prepare a special table of contents for a CD-I disc. They don't have one. */
-			if (single_toc.disk_type == 0x10 &&
-			    single_toc.first_track_num == 2 &&
-			    single_toc.last_track_num == 2 /* CD-I */ ) {
-				sony_toc.tracks[totaltracks].address = 1;
-				sony_toc.tracks[totaltracks].control = 4;	/* force data tracks */
-				sony_toc.tracks[totaltracks].track = 1;
-				sony_toc.tracks[totaltracks].
-				    track_start_msf[0] = 0;
-				sony_toc.tracks[totaltracks].
-				    track_start_msf[1] = 2;
-				sony_toc.tracks[totaltracks].
-				    track_start_msf[2] = 0;
-				mint = maxt = 1;
-				totaltracks++;
-			} else
-				/* gather track entries from this session */
-			{
-				int i;
-				for (i = 0;
-				     i <
-				     1 +
-				     bcd_to_int(single_toc.last_track_num)
-				     -
-				     bcd_to_int(single_toc.
-						first_track_num);
-				     i++, totaltracks++) {
-					sony_toc.tracks[totaltracks].
-					    address =
-					    single_toc.tracks[i].address;
-					sony_toc.tracks[totaltracks].
-					    control =
-					    single_toc.tracks[i].control;
-					sony_toc.tracks[totaltracks].
-					    track =
-					    bcd_to_int(single_toc.
-						       tracks[i].track);
-					sony_toc.tracks[totaltracks].
-					    track_start_msf[0] =
-					    bcd_to_int(single_toc.
-						       tracks[i].
-						       track_start_msf[0]);
-					sony_toc.tracks[totaltracks].
-					    track_start_msf[1] =
-					    bcd_to_int(single_toc.
-						       tracks[i].
-						       track_start_msf[1]);
-					sony_toc.tracks[totaltracks].
-					    track_start_msf[2] =
-					    bcd_to_int(single_toc.
-						       tracks[i].
-						       track_start_msf[2]);
-					if (i == 0)
-						single_toc.
-						    start_track_lba =
-						    msf_to_log(sony_toc.
-							       tracks
-							       [totaltracks].
-							       track_start_msf);
-					if (mint >
-					    sony_toc.tracks[totaltracks].
-					    track)
-						mint =
-						    sony_toc.
-						    tracks[totaltracks].
-						    track;
-					if (maxt <
-					    sony_toc.tracks[totaltracks].
-					    track)
-						maxt =
-						    sony_toc.
-						    tracks[totaltracks].
-						    track;
-				}
-			}
-			sony_toc.first_track_num = mint;
-			sony_toc.last_track_num = maxt;
-			/* Disk type of last session wins. For example:
-			   CD-Extra has disk type 0 for the first session, so
-			   a dumb HiFi CD player thinks it is a plain audio CD.
-			   We are interested in the disk type of the last session,
-			   which is 0x20 (XA) for CD-Extra, so we can access the
-			   data track ... */
-			sony_toc.disk_type = single_toc.disk_type;
-			sony_toc.sessions = session;
-
-			/* don't believe everything :-) */
-			if (session == 1)
-				single_toc.start_track_lba = 0;
-			sony_toc.start_track_lba =
-			    single_toc.start_track_lba;
-
-			if (session > 1 && single_toc.pointb0 == 0xb0 &&
-			    sony_toc.lead_out_start_lba ==
-			    single_toc.lead_out_start_lba) {
-				break;
-			}
-
-			/* Let's not get carried away... */
-			if (session > 40) {
-				printk(KERN_NOTICE PFX "too many sessions: "
-						"%d\n", session);
-				break;
-			}
-			session++;
-		}
-		sony_toc.track_entries = totaltracks;
-		/* add one entry for the LAST track with track number CDROM_LEADOUT */
-		sony_toc.tracks[totaltracks].address = single_toc.address2;
-		sony_toc.tracks[totaltracks].control = single_toc.control2;
-		sony_toc.tracks[totaltracks].track = CDROM_LEADOUT;
-		sony_toc.tracks[totaltracks].track_start_msf[0] =
-		    sony_toc.lead_out_start_msf[0];
-		sony_toc.tracks[totaltracks].track_start_msf[1] =
-		    sony_toc.lead_out_start_msf[1];
-		sony_toc.tracks[totaltracks].track_start_msf[2] =
-		    sony_toc.lead_out_start_msf[2];
-
-		sony_toc_read = 1;
-
-		pr_debug(PFX "Disk session %d, start track: %d, "
-				"stop track: %d\n",
-		     session, single_toc.start_track_lba,
-		     single_toc.lead_out_start_lba);
-	}
-	pr_debug(PFX "Leaving %s\n", __FUNCTION__);
-}
-
-
-/*
- * Uniform cdrom interface function
- * return multisession offset and sector information
- */
-static int scd_get_last_session(struct cdrom_device_info *cdi,
-				struct cdrom_multisession *ms_info)
-{
-	if (ms_info == NULL)
-		return 1;
-
-	if (!sony_toc_read) {
-		if (down_interruptible(&sony_sem))
-			return -ERESTARTSYS;
-		sony_get_toc();
-		up(&sony_sem);
-	}
-
-	ms_info->addr_format = CDROM_LBA;
-	ms_info->addr.lba = sony_toc.start_track_lba;
-	ms_info->xa_flag = sony_toc.disk_type == SONY_XA_DISK_TYPE ||
-	    sony_toc.disk_type == 0x10 /* CDI */ ;
-
-	return 0;
-}
-
-/*
- * Search for a specific track in the table of contents.
- */
-static int find_track(int track)
-{
-	int i;
-
-	for (i = 0; i <= sony_toc.track_entries; i++) {
-		if (sony_toc.tracks[i].track == track) {
-			return i;
-		}
-	}
-
-	return -1;
-}
-
-
-/*
- * Read the subcode and put it in last_sony_subcode for future use.
- */
-static int read_subcode(void)
-{
-	unsigned int res_size;
-
-
-	do_sony_cd_cmd(SONY_REQ_SUBCODE_ADDRESS_CMD,
-		       NULL,
-		       0, (unsigned char *) &last_sony_subcode, &res_size);
-	if ((res_size < 2)
-	    || ((last_sony_subcode.exec_status[0] & 0xf0) == 0x20)) {
-		printk(KERN_ERR PFX "Sony CDROM error %s (read_subcode)\n",
-		       translate_error(last_sony_subcode.exec_status[1]));
-		return -EIO;
-	}
-
-	last_sony_subcode.track_num =
-	    bcd_to_int(last_sony_subcode.track_num);
-	last_sony_subcode.index_num =
-	    bcd_to_int(last_sony_subcode.index_num);
-	last_sony_subcode.abs_msf[0] =
-	    bcd_to_int(last_sony_subcode.abs_msf[0]);
-	last_sony_subcode.abs_msf[1] =
-	    bcd_to_int(last_sony_subcode.abs_msf[1]);
-	last_sony_subcode.abs_msf[2] =
-	    bcd_to_int(last_sony_subcode.abs_msf[2]);
-
-	last_sony_subcode.rel_msf[0] =
-	    bcd_to_int(last_sony_subcode.rel_msf[0]);
-	last_sony_subcode.rel_msf[1] =
-	    bcd_to_int(last_sony_subcode.rel_msf[1]);
-	last_sony_subcode.rel_msf[2] =
-	    bcd_to_int(last_sony_subcode.rel_msf[2]);
-	return 0;
-}
-
-/*
- * Uniform cdrom interface function
- * return the media catalog number found on some older audio cds
- */
-static int
-scd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
-{
-	unsigned char resbuffer[2 + 14];
-	unsigned char *mcnp = mcn->medium_catalog_number;
-	unsigned char *resp = resbuffer + 3;
-	unsigned int res_size;
-
-	memset(mcn->medium_catalog_number, 0, 14);
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	do_sony_cd_cmd(SONY_REQ_UPC_EAN_CMD,
-		       NULL, 0, resbuffer, &res_size);
-	up(&sony_sem);
-	if ((res_size < 2) || ((resbuffer[0] & 0xf0) == 0x20));
-	else {
-		/* packed bcd to single ASCII digits */
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-		*mcnp++ = (*resp++ & 0x0f) + '0';
-		*mcnp++ = (*resp >> 4) + '0';
-	}
-	*mcnp = '\0';
-	return 0;
-}
-
-
-/*
- * Get the subchannel info like the CDROMSUBCHNL command wants to see it.  If
- * the drive is playing, the subchannel needs to be read (since it would be
- * changing).  If the drive is paused or completed, the subcode information has
- * already been stored, just use that.  The ioctl call wants things in decimal
- * (not BCD), so all the conversions are done.
- */
-static int sony_get_subchnl_info(struct cdrom_subchnl *schi)
-{
-	/* Get attention stuff */
-	while (handle_sony_cd_attention());
-
-	sony_get_toc();
-	if (!sony_toc_read) {
-		return -EIO;
-	}
-
-	switch (sony_audio_status) {
-	case CDROM_AUDIO_NO_STATUS:
-	case CDROM_AUDIO_PLAY:
-		if (read_subcode() < 0) {
-			return -EIO;
-		}
-		break;
-
-	case CDROM_AUDIO_PAUSED:
-	case CDROM_AUDIO_COMPLETED:
-		break;
-
-#if 0
-	case CDROM_AUDIO_NO_STATUS:
-		schi->cdsc_audiostatus = sony_audio_status;
-		return 0;
-		break;
-#endif
-	case CDROM_AUDIO_INVALID:
-	case CDROM_AUDIO_ERROR:
-	default:
-		return -EIO;
-	}
-
-	schi->cdsc_audiostatus = sony_audio_status;
-	schi->cdsc_adr = last_sony_subcode.address;
-	schi->cdsc_ctrl = last_sony_subcode.control;
-	schi->cdsc_trk = last_sony_subcode.track_num;
-	schi->cdsc_ind = last_sony_subcode.index_num;
-	if (schi->cdsc_format == CDROM_MSF) {
-		schi->cdsc_absaddr.msf.minute =
-		    last_sony_subcode.abs_msf[0];
-		schi->cdsc_absaddr.msf.second =
-		    last_sony_subcode.abs_msf[1];
-		schi->cdsc_absaddr.msf.frame =
-		    last_sony_subcode.abs_msf[2];
-
-		schi->cdsc_reladdr.msf.minute =
-		    last_sony_subcode.rel_msf[0];
-		schi->cdsc_reladdr.msf.second =
-		    last_sony_subcode.rel_msf[1];
-		schi->cdsc_reladdr.msf.frame =
-		    last_sony_subcode.rel_msf[2];
-	} else if (schi->cdsc_format == CDROM_LBA) {
-		schi->cdsc_absaddr.lba =
-		    msf_to_log(last_sony_subcode.abs_msf);
-		schi->cdsc_reladdr.lba =
-		    msf_to_log(last_sony_subcode.rel_msf);
-	}
-
-	return 0;
-}
-
-/* Get audio data from the drive.  This is fairly complex because I
-   am looking for status and data at the same time, but if I get status
-   then I just look for data.  I need to get the status immediately so
-   the switch from audio to data tracks will happen quickly. */
-static void
-read_audio_data(char *buffer, unsigned char res_reg[], int *res_size)
-{
-	unsigned long retry_count;
-	int result_read;
-
-
-	res_reg[0] = 0;
-	res_reg[1] = 0;
-	*res_size = 0;
-	result_read = 0;
-
-	/* Wait for the drive to tell us we have something */
-	retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-      continue_read_audio_wait:
-	while (time_before(jiffies, retry_count) && !(is_data_ready())
-	       && !(is_result_ready() || result_read)) {
-		while (handle_sony_cd_attention());
-
-		sony_sleep();
-	}
-	if (!(is_data_ready())) {
-		if (is_result_ready() && !result_read) {
-			get_result(res_reg, res_size);
-
-			/* Read block status and continue waiting for data. */
-			if ((res_reg[0] & 0xf0) == 0x50) {
-				result_read = 1;
-				goto continue_read_audio_wait;
-			}
-			/* Invalid data from the drive.  Shut down the operation. */
-			else if ((res_reg[0] & 0xf0) != 0x20) {
-				printk(KERN_WARNING PFX "Got result that "
-						"should have been error: %d\n",
-				     res_reg[0]);
-				res_reg[0] = 0x20;
-				res_reg[1] = SONY_BAD_DATA_ERR;
-				*res_size = 2;
-			}
-			abort_read();
-		} else {
-			pr_debug(PFX "timeout out %d\n", __LINE__);
-			res_reg[0] = 0x20;
-			res_reg[1] = SONY_TIMEOUT_OP_ERR;
-			*res_size = 2;
-			abort_read();
-		}
-	} else {
-		clear_data_ready();
-
-		/* If data block, then get 2340 bytes offset by 12. */
-		if (sony_raw_data_mode) {
-			insb(sony_cd_read_reg, buffer + CD_XA_HEAD,
-			     CD_FRAMESIZE_RAW1);
-		} else {
-			/* Audio gets the whole 2352 bytes. */
-			insb(sony_cd_read_reg, buffer, CD_FRAMESIZE_RAW);
-		}
-
-		/* If I haven't already gotten the result, get it now. */
-		if (!result_read) {
-			/* Wait for the drive to tell us we have something */
-			retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
-			while (time_before(jiffies, retry_count)
-			       && !(is_result_ready())) {
-				while (handle_sony_cd_attention());
-
-				sony_sleep();
-			}
-
-			if (!is_result_ready()) {
-				pr_debug(PFX "timeout out %d\n", __LINE__);
-				res_reg[0] = 0x20;
-				res_reg[1] = SONY_TIMEOUT_OP_ERR;
-				*res_size = 2;
-				abort_read();
-				return;
-			} else {
-				get_result(res_reg, res_size);
-			}
-		}
-
-		if ((res_reg[0] & 0xf0) == 0x50) {
-			if ((res_reg[0] == SONY_NO_CIRC_ERR_BLK_STAT)
-			    || (res_reg[0] == SONY_NO_LECC_ERR_BLK_STAT)
-			    || (res_reg[0] == SONY_RECOV_LECC_ERR_BLK_STAT)
-			    || (res_reg[0] == SONY_NO_ERR_DETECTION_STAT)) {
-				/* Ok, nothing to do. */
-			} else {
-				printk(KERN_ERR PFX "Data block error: 0x%x\n",
-				       res_reg[0]);
-				res_reg[0] = 0x20;
-				res_reg[1] = SONY_BAD_DATA_ERR;
-				*res_size = 2;
-			}
-		} else if ((res_reg[0] & 0xf0) != 0x20) {
-			/* The drive gave me bad status, I don't know what to do.
-			   Reset the driver and return an error. */
-			printk(KERN_NOTICE PFX "Invalid block status: 0x%x\n",
-			       res_reg[0]);
-			restart_on_error();
-			res_reg[0] = 0x20;
-			res_reg[1] = SONY_BAD_DATA_ERR;
-			*res_size = 2;
-		}
-	}
-}
-
-/* Perform a raw data read.  This will automatically detect the
-   track type and read the proper data (audio or data). */
-static int read_audio(struct cdrom_read_audio *ra)
-{
-	int retval;
-	unsigned char params[2];
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	unsigned int cframe;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	if (!sony_spun_up)
-		scd_spinup();
-
-	/* Set the drive to do raw operations. */
-	params[0] = SONY_SD_DECODE_PARAM;
-	params[1] = 0x06 | sony_raw_data_mode;
-	do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-		       params, 2, res_reg, &res_size);
-	if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
-		printk(KERN_ERR PFX "Unable to set decode params: 0x%2.2x\n",
-		       res_reg[1]);
-		retval = -EIO;
-		goto out_up;
-	}
-
-	/* From here down, we have to goto exit_read_audio instead of returning
-	   because the drive parameters have to be set back to data before
-	   return. */
-
-	retval = 0;
-	if (start_request(ra->addr.lba, ra->nframes)) {
-		retval = -EIO;
-		goto exit_read_audio;
-	}
-
-	/* For every requested frame. */
-	cframe = 0;
-	while (cframe < ra->nframes) {
-		read_audio_data(audio_buffer, res_reg, &res_size);
-		if ((res_reg[0] & 0xf0) == 0x20) {
-			if (res_reg[1] == SONY_BAD_DATA_ERR) {
-				printk(KERN_ERR PFX "Data error on audio "
-						"sector %d\n",
-				     ra->addr.lba + cframe);
-			} else if (res_reg[1] == SONY_ILL_TRACK_R_ERR) {
-				/* Illegal track type, change track types and start over. */
-				sony_raw_data_mode =
-				    (sony_raw_data_mode) ? 0 : 1;
-
-				/* Set the drive mode. */
-				params[0] = SONY_SD_DECODE_PARAM;
-				params[1] = 0x06 | sony_raw_data_mode;
-				do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-					       params,
-					       2, res_reg, &res_size);
-				if ((res_size < 2)
-				    || ((res_reg[0] & 0xf0) == 0x20)) {
-					printk(KERN_ERR PFX "Unable to set "
-						"decode params: 0x%2.2x\n",
-					     res_reg[1]);
-					retval = -EIO;
-					goto exit_read_audio;
-				}
-
-				/* Restart the request on the current frame. */
-				if (start_request
-				    (ra->addr.lba + cframe,
-				     ra->nframes - cframe)) {
-					retval = -EIO;
-					goto exit_read_audio;
-				}
-
-				/* Don't go back to the top because don't want to get into
-				   and infinite loop.  A lot of code gets duplicated, but
-				   that's no big deal, I don't guess. */
-				read_audio_data(audio_buffer, res_reg,
-						&res_size);
-				if ((res_reg[0] & 0xf0) == 0x20) {
-					if (res_reg[1] ==
-					    SONY_BAD_DATA_ERR) {
-						printk(KERN_ERR PFX "Data error"
-							" on audio sector %d\n",
-						     ra->addr.lba +
-						     cframe);
-					} else {
-						printk(KERN_ERR PFX "Error reading audio data on sector %d: %s\n",
-						     ra->addr.lba + cframe,
-						     translate_error
-						     (res_reg[1]));
-						retval = -EIO;
-						goto exit_read_audio;
-					}
-				} else if (copy_to_user(ra->buf +
-							       (CD_FRAMESIZE_RAW
-								* cframe),
-						        audio_buffer,
-							CD_FRAMESIZE_RAW)) {
-					retval = -EFAULT;
-					goto exit_read_audio;
-				}
-			} else {
-				printk(KERN_ERR PFX "Error reading audio "
-						"data on sector %d: %s\n",
-				     ra->addr.lba + cframe,
-				     translate_error(res_reg[1]));
-				retval = -EIO;
-				goto exit_read_audio;
-			}
-		} else if (copy_to_user(ra->buf + (CD_FRAMESIZE_RAW * cframe),
-					(char *)audio_buffer,
-					CD_FRAMESIZE_RAW)) {
-			retval = -EFAULT;
-			goto exit_read_audio;
-		}
-
-		cframe++;
-	}
-
-	get_result(res_reg, &res_size);
-	if ((res_reg[0] & 0xf0) == 0x20) {
-		printk(KERN_ERR PFX "Error return from audio read: %s\n",
-		       translate_error(res_reg[1]));
-		retval = -EIO;
-		goto exit_read_audio;
-	}
-
-      exit_read_audio:
-
-	/* Set the drive mode back to the proper one for the disk. */
-	params[0] = SONY_SD_DECODE_PARAM;
-	if (!sony_xa_mode) {
-		params[1] = 0x0f;
-	} else {
-		params[1] = 0x07;
-	}
-	do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-		       params, 2, res_reg, &res_size);
-	if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
-		printk(KERN_ERR PFX "Unable to reset decode params: 0x%2.2x\n",
-		       res_reg[1]);
-		retval = -EIO;
-	}
-
- out_up:
-	up(&sony_sem);
-
-	return retval;
-}
-
-static int
-do_sony_cd_cmd_chk(const char *name,
-		   unsigned char cmd,
-		   unsigned char *params,
-		   unsigned int num_params,
-		   unsigned char *result_buffer, unsigned int *result_size)
-{
-	do_sony_cd_cmd(cmd, params, num_params, result_buffer,
-		       result_size);
-	if ((*result_size < 2) || ((result_buffer[0] & 0xf0) == 0x20)) {
-		printk(KERN_ERR PFX "Error %s (CDROM%s)\n",
-		       translate_error(result_buffer[1]), name);
-		return -EIO;
-	}
-	return 0;
-}
-
-/*
- * Uniform cdrom interface function
- * open the tray
- */
-static int scd_tray_move(struct cdrom_device_info *cdi, int position)
-{
-	int retval;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	if (position == 1 /* open tray */ ) {
-		unsigned char res_reg[12];
-		unsigned int res_size;
-
-		do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
-			       &res_size);
-		do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		sony_audio_status = CDROM_AUDIO_INVALID;
-		retval = do_sony_cd_cmd_chk("EJECT", SONY_EJECT_CMD, NULL, 0,
-					  res_reg, &res_size);
-	} else {
-		if (0 == scd_spinup())
-			sony_spun_up = 1;
-		retval = 0;
-	}
-	up(&sony_sem);
-	return retval;
-}
-
-/*
- * The big ugly ioctl handler.
- */
-static int scd_audio_ioctl(struct cdrom_device_info *cdi,
-			   unsigned int cmd, void *arg)
-{
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	unsigned char params[7];
-	int i, retval;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	switch (cmd) {
-	case CDROMSTART:	/* Spin up the drive */
-		retval = do_sony_cd_cmd_chk("START", SONY_SPIN_UP_CMD, NULL,
-					  0, res_reg, &res_size);
-		break;
-
-	case CDROMSTOP:	/* Spin down the drive */
-		do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		/*
-		 * Spin the drive down, ignoring the error if the disk was
-		 * already not spinning.
-		 */
-		sony_audio_status = CDROM_AUDIO_NO_STATUS;
-		retval = do_sony_cd_cmd_chk("STOP", SONY_SPIN_DOWN_CMD, NULL,
-					  0, res_reg, &res_size);
-		break;
-
-	case CDROMPAUSE:	/* Pause the drive */
-		if (do_sony_cd_cmd_chk
-		    ("PAUSE", SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
-		     &res_size)) {
-			retval = -EIO;
-			break;
-		}
-		/* Get the current position and save it for resuming */
-		if (read_subcode() < 0) {
-			retval = -EIO;
-			break;
-		}
-		cur_pos_msf[0] = last_sony_subcode.abs_msf[0];
-		cur_pos_msf[1] = last_sony_subcode.abs_msf[1];
-		cur_pos_msf[2] = last_sony_subcode.abs_msf[2];
-		sony_audio_status = CDROM_AUDIO_PAUSED;
-		retval = 0;
-		break;
-
-	case CDROMRESUME:	/* Start the drive after being paused */
-		if (sony_audio_status != CDROM_AUDIO_PAUSED) {
-			retval = -EINVAL;
-			break;
-		}
-
-		do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		/* Start the drive at the saved position. */
-		params[1] = int_to_bcd(cur_pos_msf[0]);
-		params[2] = int_to_bcd(cur_pos_msf[1]);
-		params[3] = int_to_bcd(cur_pos_msf[2]);
-		params[4] = int_to_bcd(final_pos_msf[0]);
-		params[5] = int_to_bcd(final_pos_msf[1]);
-		params[6] = int_to_bcd(final_pos_msf[2]);
-		params[0] = 0x03;
-		if (do_sony_cd_cmd_chk
-		    ("RESUME", SONY_AUDIO_PLAYBACK_CMD, params, 7, res_reg,
-		     &res_size) < 0) {
-			retval = -EIO;
-			break;
-		}
-		sony_audio_status = CDROM_AUDIO_PLAY;
-		retval = 0;
-		break;
-
-	case CDROMPLAYMSF:	/* Play starting at the given MSF address. */
-		do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		/* The parameters are given in int, must be converted */
-		for (i = 1; i < 7; i++) {
-			params[i] =
-			    int_to_bcd(((unsigned char *) arg)[i - 1]);
-		}
-		params[0] = 0x03;
-		if (do_sony_cd_cmd_chk
-		    ("PLAYMSF", SONY_AUDIO_PLAYBACK_CMD, params, 7,
-		     res_reg, &res_size) < 0) {
-			retval = -EIO;
-			break;
-		}
-
-		/* Save the final position for pauses and resumes */
-		final_pos_msf[0] = bcd_to_int(params[4]);
-		final_pos_msf[1] = bcd_to_int(params[5]);
-		final_pos_msf[2] = bcd_to_int(params[6]);
-		sony_audio_status = CDROM_AUDIO_PLAY;
-		retval = 0;
-		break;
-
-	case CDROMREADTOCHDR:	/* Read the table of contents header */
-		{
-			struct cdrom_tochdr *hdr;
-
-			sony_get_toc();
-			if (!sony_toc_read) {
-				retval = -EIO;
-				break;
-			}
-
-			hdr = (struct cdrom_tochdr *) arg;
-			hdr->cdth_trk0 = sony_toc.first_track_num;
-			hdr->cdth_trk1 = sony_toc.last_track_num;
-		}
-		retval = 0;
-		break;
-
-	case CDROMREADTOCENTRY:	/* Read a given table of contents entry */
-		{
-			struct cdrom_tocentry *entry;
-			int track_idx;
-			unsigned char *msf_val = NULL;
-
-			sony_get_toc();
-			if (!sony_toc_read) {
-				retval = -EIO;
-				break;
-			}
-
-			entry = (struct cdrom_tocentry *) arg;
-
-			track_idx = find_track(entry->cdte_track);
-			if (track_idx < 0) {
-				retval = -EINVAL;
-				break;
-			}
-
-			entry->cdte_adr =
-			    sony_toc.tracks[track_idx].address;
-			entry->cdte_ctrl =
-			    sony_toc.tracks[track_idx].control;
-			msf_val =
-			    sony_toc.tracks[track_idx].track_start_msf;
-
-			/* Logical buffer address or MSF format requested? */
-			if (entry->cdte_format == CDROM_LBA) {
-				entry->cdte_addr.lba = msf_to_log(msf_val);
-			} else if (entry->cdte_format == CDROM_MSF) {
-				entry->cdte_addr.msf.minute = *msf_val;
-				entry->cdte_addr.msf.second =
-				    *(msf_val + 1);
-				entry->cdte_addr.msf.frame =
-				    *(msf_val + 2);
-			}
-		}
-		retval = 0;
-		break;
-
-	case CDROMPLAYTRKIND:	/* Play a track.  This currently ignores index. */
-		{
-			struct cdrom_ti *ti = (struct cdrom_ti *) arg;
-			int track_idx;
-
-			sony_get_toc();
-			if (!sony_toc_read) {
-				retval = -EIO;
-				break;
-			}
-
-			if ((ti->cdti_trk0 < sony_toc.first_track_num)
-			    || (ti->cdti_trk0 > sony_toc.last_track_num)
-			    || (ti->cdti_trk1 < ti->cdti_trk0)) {
-				retval = -EINVAL;
-				break;
-			}
-
-			track_idx = find_track(ti->cdti_trk0);
-			if (track_idx < 0) {
-				retval = -EINVAL;
-				break;
-			}
-			params[1] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[0]);
-			params[2] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[1]);
-			params[3] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[2]);
-
-			/*
-			 * If we want to stop after the last track, use the lead-out
-			 * MSF to do that.
-			 */
-			if (ti->cdti_trk1 >= sony_toc.last_track_num) {
-				track_idx = find_track(CDROM_LEADOUT);
-			} else {
-				track_idx = find_track(ti->cdti_trk1 + 1);
-			}
-			if (track_idx < 0) {
-				retval = -EINVAL;
-				break;
-			}
-			params[4] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[0]);
-			params[5] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[1]);
-			params[6] =
-			    int_to_bcd(sony_toc.tracks[track_idx].
-				       track_start_msf[2]);
-			params[0] = 0x03;
-
-			do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
-				       &res_size);
-
-			do_sony_cd_cmd(SONY_AUDIO_PLAYBACK_CMD, params, 7,
-				       res_reg, &res_size);
-
-			if ((res_size < 2)
-			    || ((res_reg[0] & 0xf0) == 0x20)) {
-				printk(KERN_ERR PFX
-					"Params: %x %x %x %x %x %x %x\n",
-				       params[0], params[1], params[2],
-				       params[3], params[4], params[5],
-				       params[6]);
-				printk(KERN_ERR PFX
-					"Error %s (CDROMPLAYTRKIND)\n",
-				     translate_error(res_reg[1]));
-				retval = -EIO;
-				break;
-			}
-
-			/* Save the final position for pauses and resumes */
-			final_pos_msf[0] = bcd_to_int(params[4]);
-			final_pos_msf[1] = bcd_to_int(params[5]);
-			final_pos_msf[2] = bcd_to_int(params[6]);
-			sony_audio_status = CDROM_AUDIO_PLAY;
-			retval = 0;
-			break;
-		}
-
-	case CDROMVOLCTRL:	/* Volume control.  What volume does this change, anyway? */
-		{
-			struct cdrom_volctrl *volctrl =
-			    (struct cdrom_volctrl *) arg;
-
-			params[0] = SONY_SD_AUDIO_VOLUME;
-			params[1] = volctrl->channel0;
-			params[2] = volctrl->channel1;
-			retval = do_sony_cd_cmd_chk("VOLCTRL",
-						  SONY_SET_DRIVE_PARAM_CMD,
-						  params, 3, res_reg,
-						  &res_size);
-			break;
-		}
-	case CDROMSUBCHNL:	/* Get subchannel info */
-		retval = sony_get_subchnl_info((struct cdrom_subchnl *) arg);
-		break;
-
-	default:
-		retval = -EINVAL;
-		break;
-	}
-	up(&sony_sem);
-	return retval;
-}
-
-static int scd_read_audio(struct cdrom_device_info *cdi,
-			 unsigned int cmd, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	int retval;
-
-	if (down_interruptible(&sony_sem))
-		return -ERESTARTSYS;
-	switch (cmd) {
-	case CDROMREADAUDIO:	/* Read 2352 byte audio tracks and 2340 byte
-				   raw data tracks. */
-		{
-			struct cdrom_read_audio ra;
-
-
-			sony_get_toc();
-			if (!sony_toc_read) {
-				retval = -EIO;
-				break;
-			}
-
-			if (copy_from_user(&ra, argp, sizeof(ra))) {
-				retval = -EFAULT;
-				break;
-			}
-
-			if (ra.nframes == 0) {
-				retval = 0;
-				break;
-			}
-
-			if (!access_ok(VERIFY_WRITE, ra.buf,
-					CD_FRAMESIZE_RAW * ra.nframes))
-				return -EFAULT;
-
-			if (ra.addr_format == CDROM_LBA) {
-				if ((ra.addr.lba >=
-				     sony_toc.lead_out_start_lba)
-				    || (ra.addr.lba + ra.nframes >=
-					sony_toc.lead_out_start_lba)) {
-					retval = -EINVAL;
-					break;
-				}
-			} else if (ra.addr_format == CDROM_MSF) {
-				if ((ra.addr.msf.minute >= 75)
-				    || (ra.addr.msf.second >= 60)
-				    || (ra.addr.msf.frame >= 75)) {
-					retval = -EINVAL;
-					break;
-				}
-
-				ra.addr.lba = ((ra.addr.msf.minute * 4500)
-					       + (ra.addr.msf.second * 75)
-					       + ra.addr.msf.frame);
-				if ((ra.addr.lba >=
-				     sony_toc.lead_out_start_lba)
-				    || (ra.addr.lba + ra.nframes >=
-					sony_toc.lead_out_start_lba)) {
-					retval = -EINVAL;
-					break;
-				}
-
-				/* I know, this can go negative on an unsigned.  However,
-				   the first thing done to the data is to add this value,
-				   so this should compensate and allow direct msf access. */
-				ra.addr.lba -= LOG_START_OFFSET;
-			} else {
-				retval = -EINVAL;
-				break;
-			}
-
-			retval = read_audio(&ra);
-			break;
-		}
-		retval = 0;
-		break;
-
-	default:
-		retval = -EINVAL;
-	}
-	up(&sony_sem);
-	return retval;
-}
-
-static int scd_spinup(void)
-{
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	int num_spin_ups;
-
-	num_spin_ups = 0;
-
-      respinup_on_open:
-	do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
-
-	/* The drive sometimes returns error 0.  I don't know why, but ignore
-	   it.  It seems to mean the drive has already done the operation. */
-	if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
-		printk(KERN_ERR PFX "%s error (scd_open, spin up)\n",
-		       translate_error(res_reg[1]));
-		return 1;
-	}
-
-	do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, &res_size);
-
-	/* The drive sometimes returns error 0.  I don't know why, but ignore
-	   it.  It seems to mean the drive has already done the operation. */
-	if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
-		/* If the drive is already playing, it's ok.  */
-		if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
-		    || (res_reg[1] == 0)) {
-			return 0;
-		}
-
-		/* If the drive says it is not spun up (even though we just did it!)
-		   then retry the operation at least a few times. */
-		if ((res_reg[1] == SONY_NOT_SPIN_ERR)
-		    && (num_spin_ups < MAX_CDU31A_RETRIES)) {
-			num_spin_ups++;
-			goto respinup_on_open;
-		}
-
-		printk(KERN_ERR PFX "Error %s (scd_open, read toc)\n",
-		       translate_error(res_reg[1]));
-		do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
-			       &res_size);
-		return 1;
-	}
-	return 0;
-}
-
-/*
- * Open the drive for operations.  Spin the drive up and read the table of
- * contents if these have not already been done.
- */
-static int scd_open(struct cdrom_device_info *cdi, int purpose)
-{
-	unsigned char res_reg[12];
-	unsigned int res_size;
-	unsigned char params[2];
-
-	if (purpose == 1) {
-		/* Open for IOCTLs only - no media check */
-		sony_usage++;
-		return 0;
-	}
-
-	if (sony_usage == 0) {
-		if (scd_spinup() != 0)
-			return -EIO;
-		sony_get_toc();
-		if (!sony_toc_read) {
-			do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0,
-				       res_reg, &res_size);
-			return -EIO;
-		}
-
-		/* For XA on the CDU31A only, we have to do special reads.
-		   The CDU33A handles XA automagically. */
-		/* if (   (sony_toc.disk_type == SONY_XA_DISK_TYPE) */
-		if ((sony_toc.disk_type != 0x00)
-		    && (!is_double_speed)) {
-			params[0] = SONY_SD_DECODE_PARAM;
-			params[1] = 0x07;
-			do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-				       params, 2, res_reg, &res_size);
-			if ((res_size < 2)
-			    || ((res_reg[0] & 0xf0) == 0x20)) {
-				printk(KERN_WARNING PFX "Unable to set "
-					"XA params: 0x%2.2x\n", res_reg[1]);
-			}
-			sony_xa_mode = 1;
-		}
-		/* A non-XA disk.  Set the parms back if necessary. */
-		else if (sony_xa_mode) {
-			params[0] = SONY_SD_DECODE_PARAM;
-			params[1] = 0x0f;
-			do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
-				       params, 2, res_reg, &res_size);
-			if ((res_size < 2)
-			    || ((res_reg[0] & 0xf0) == 0x20)) {
-				printk(KERN_WARNING PFX "Unable to reset "
-					"XA params: 0x%2.2x\n", res_reg[1]);
-			}
-			sony_xa_mode = 0;
-		}
-
-		sony_spun_up = 1;
-	}
-
-	sony_usage++;
-
-	return 0;
-}
-
-
-/*
- * Close the drive.  Spin it down if no task is using it.  The spin
- * down will fail if playing audio, so audio play is OK.
- */
-static void scd_release(struct cdrom_device_info *cdi)
-{
-	if (sony_usage == 1) {
-		unsigned char res_reg[12];
-		unsigned int res_size;
-
-		do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
-			       &res_size);
-
-		sony_spun_up = 0;
-	}
-	sony_usage--;
-}
-
-static struct cdrom_device_ops scd_dops = {
-	.open			= scd_open,
-	.release		= scd_release,
-	.drive_status		= scd_drive_status,
-	.media_changed		= scd_media_changed,
-	.tray_move		= scd_tray_move,
-	.lock_door		= scd_lock_door,
-	.select_speed		= scd_select_speed,
-	.get_last_session	= scd_get_last_session,
-	.get_mcn		= scd_get_mcn,
-	.reset			= scd_reset,
-	.audio_ioctl		= scd_audio_ioctl,
-	.capability		= CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK |
-				  CDC_SELECT_SPEED | CDC_MULTI_SESSION |
-				  CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO |
-				  CDC_RESET | CDC_DRIVE_STATUS,
-	.n_minors		= 1,
-};
-
-static struct cdrom_device_info scd_info = {
-	.ops		= &scd_dops,
-	.speed		= 2,
-	.capacity	= 1,
-	.name		= "cdu31a"
-};
-
-static int scd_block_open(struct inode *inode, struct file *file)
-{
-	return cdrom_open(&scd_info, inode, file);
-}
-
-static int scd_block_release(struct inode *inode, struct file *file)
-{
-	return cdrom_release(&scd_info, file);
-}
-
-static int scd_block_ioctl(struct inode *inode, struct file *file,
-				unsigned cmd, unsigned long arg)
-{
-	int retval;
-
-	/* The eject and close commands should be handled by Uniform CD-ROM
-	 * driver - but I always got hard lockup instead of eject
-	 * until I put this here.
-	 */
-	switch (cmd) {
-		case CDROMEJECT:
-			scd_lock_door(&scd_info, 0);
-			retval = scd_tray_move(&scd_info, 1);
-			break;
-		case CDROMCLOSETRAY:
-			retval = scd_tray_move(&scd_info, 0);
-			break;
-		case CDROMREADAUDIO:
-			retval = scd_read_audio(&scd_info, CDROMREADAUDIO, arg);
-			break;
-		default:
-			retval = cdrom_ioctl(file, &scd_info, inode, cmd, arg);
-	}
-	return retval;
-}
-
-static int scd_block_media_changed(struct gendisk *disk)
-{
-	return cdrom_media_changed(&scd_info);
-}
-
-static struct block_device_operations scd_bdops =
-{
-	.owner		= THIS_MODULE,
-	.open		= scd_block_open,
-	.release	= scd_block_release,
-	.ioctl		= scd_block_ioctl,
-	.media_changed	= scd_block_media_changed,
-};
-
-static struct gendisk *scd_gendisk;
-
-/* The different types of disc loading mechanisms supported */
-static char *load_mech[] __initdata =
-    { "caddy", "tray", "pop-up", "unknown" };
-
-static int __init
-get_drive_configuration(unsigned short base_io,
-			unsigned char res_reg[], unsigned int *res_size)
-{
-	unsigned long retry_count;
-
-
-	if (!request_region(base_io, 4, "cdu31a"))
-		return 0;
-
-	/* Set the base address */
-	cdu31a_port = base_io;
-
-	/* Set up all the register locations */
-	sony_cd_cmd_reg = cdu31a_port + SONY_CMD_REG_OFFSET;
-	sony_cd_param_reg = cdu31a_port + SONY_PARAM_REG_OFFSET;
-	sony_cd_write_reg = cdu31a_port + SONY_WRITE_REG_OFFSET;
-	sony_cd_control_reg = cdu31a_port + SONY_CONTROL_REG_OFFSET;
-	sony_cd_status_reg = cdu31a_port + SONY_STATUS_REG_OFFSET;
-	sony_cd_result_reg = cdu31a_port + SONY_RESULT_REG_OFFSET;
-	sony_cd_read_reg = cdu31a_port + SONY_READ_REG_OFFSET;
-	sony_cd_fifost_reg = cdu31a_port + SONY_FIFOST_REG_OFFSET;
-
-	/*
-	 * Check to see if anything exists at the status register location.
-	 * I don't know if this is a good way to check, but it seems to work
-	 * ok for me.
-	 */
-	if (read_status_register() != 0xff) {
-		/*
-		 * Reset the drive and wait for attention from it (to say it's reset).
-		 * If you don't wait, the next operation will probably fail.
-		 */
-		reset_drive();
-		retry_count = jiffies + SONY_RESET_TIMEOUT;
-		while (time_before(jiffies, retry_count)
-		       && (!is_attention())) {
-			sony_sleep();
-		}
-
-#if 0
-		/* If attention is never seen probably not a CDU31a present */
-		if (!is_attention()) {
-			res_reg[0] = 0x20;
-			goto out_err;
-		}
-#endif
-
-		/*
-		 * Get the drive configuration.
-		 */
-		do_sony_cd_cmd(SONY_REQ_DRIVE_CONFIG_CMD,
-			       NULL,
-			       0, (unsigned char *) res_reg, res_size);
-		if (*res_size <= 2 || (res_reg[0] & 0xf0) != 0)
-			goto out_err;
-		return 1;
-	}
-
-	/* Return an error */
-	res_reg[0] = 0x20;
-out_err:
-	release_region(cdu31a_port, 4);
-	cdu31a_port = 0;
-	return 0;
-}
-
-#ifndef MODULE
-/*
- * Set up base I/O and interrupts, called from main.c.
- */
-
-static int __init cdu31a_setup(char *strings)
-{
-	int ints[4];
-
-	(void) get_options(strings, ARRAY_SIZE(ints), ints);
-
-	if (ints[0] > 0) {
-		cdu31a_port = ints[1];
-	}
-	if (ints[0] > 1) {
-		cdu31a_irq = ints[2];
-	}
-	if ((strings != NULL) && (*strings != '\0')) {
-		if (strcmp(strings, "PAS") == 0) {
-			sony_pas_init = 1;
-		} else {
-			printk(KERN_NOTICE PFX "Unknown interface type: %s\n",
-			       strings);
-		}
-	}
-
-	return 1;
-}
-
-__setup("cdu31a=", cdu31a_setup);
-
-#endif
-
-/*
- * Initialize the driver.
- */
-int __init cdu31a_init(void)
-{
-	struct s_sony_drive_config drive_config;
-	struct gendisk *disk;
-	int deficiency = 0;
-	unsigned int res_size;
-	char msg[255];
-	char buf[40];
-	int i;
-	int tmp_irq;
-
-	/*
-	 * According to Alex Freed (freed@europa.orion.adobe.com), this is
-	 * required for the Fusion CD-16 package.  If the sound driver is
-	 * loaded, it should work fine, but just in case...
-	 *
-	 * The following turn on the CD-ROM interface for a Fusion CD-16.
-	 */
-	if (sony_pas_init) {
-		outb(0xbc, 0x9a01);
-		outb(0xe2, 0x9a01);
-	}
-
-	/* Setting the base I/O address to 0xffff will disable it. */
-	if (cdu31a_port == 0xffff)
-		goto errout3;
-
-	if (cdu31a_port != 0) {
-		/* Need IRQ 0 because we can't sleep here. */
-		tmp_irq = cdu31a_irq;
-		cdu31a_irq = 0;
-		if (!get_drive_configuration(cdu31a_port,
-					    drive_config.exec_status,
-					    &res_size))
-			goto errout3;
-		cdu31a_irq = tmp_irq;
-	} else {
-		cdu31a_irq = 0;
-		for (i = 0; cdu31a_addresses[i].base; i++) {
-			if (get_drive_configuration(cdu31a_addresses[i].base,
-						     drive_config.exec_status,
-						     &res_size)) {
-				cdu31a_irq = cdu31a_addresses[i].int_num;
-				break;
-			}
-		}
-		if (!cdu31a_port)
-			goto errout3;
-	}
-
-	if (register_blkdev(MAJOR_NR, "cdu31a"))
-		goto errout2;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		goto errout1;
-	disk->major = MAJOR_NR;
-	disk->first_minor = 0;
-	sprintf(disk->disk_name, "cdu31a");
-	disk->fops = &scd_bdops;
-	disk->flags = GENHD_FL_CD;
-
-	if (SONY_HWC_DOUBLE_SPEED(drive_config))
-		is_double_speed = 1;
-
-	tmp_irq = cdu31a_irq;	/* Need IRQ 0 because we can't sleep here. */
-	cdu31a_irq = 0;
-
-	sony_speed = is_double_speed; /* Set 2X drives to 2X by default */
-	set_drive_params(sony_speed);
-
-	cdu31a_irq = tmp_irq;
-
-	if (cdu31a_irq > 0) {
-		if (request_irq
-		    (cdu31a_irq, cdu31a_interrupt, IRQF_DISABLED,
-		     "cdu31a", NULL)) {
-			printk(KERN_WARNING PFX "Unable to grab IRQ%d for "
-					"the CDU31A driver\n", cdu31a_irq);
-			cdu31a_irq = 0;
-		}
-	}
-
-	sprintf(msg, "Sony I/F CDROM : %8.8s %16.16s %8.8s\n",
-		drive_config.vendor_id,
-		drive_config.product_id,
-		drive_config.product_rev_level);
-	sprintf(buf, "  Capabilities: %s",
-		load_mech[SONY_HWC_GET_LOAD_MECH(drive_config)]);
-	strcat(msg, buf);
-	if (SONY_HWC_AUDIO_PLAYBACK(drive_config))
-		strcat(msg, ", audio");
-	else
-		deficiency |= CDC_PLAY_AUDIO;
-	if (SONY_HWC_EJECT(drive_config))
-		strcat(msg, ", eject");
-	else
-		deficiency |= CDC_OPEN_TRAY;
-	if (SONY_HWC_LED_SUPPORT(drive_config))
-		strcat(msg, ", LED");
-	if (SONY_HWC_ELECTRIC_VOLUME(drive_config))
-		strcat(msg, ", elec. Vol");
-	if (SONY_HWC_ELECTRIC_VOLUME_CTL(drive_config))
-		strcat(msg, ", sep. Vol");
-	if (is_double_speed)
-		strcat(msg, ", double speed");
-	else
-		deficiency |= CDC_SELECT_SPEED;
-	if (cdu31a_irq > 0) {
-		sprintf(buf, ", irq %d", cdu31a_irq);
-		strcat(msg, buf);
-	}
-	strcat(msg, "\n");
-	printk(KERN_INFO PFX "%s",msg);
-
-	cdu31a_queue = blk_init_queue(do_cdu31a_request, &cdu31a_lock);
-	if (!cdu31a_queue)
-		goto errout0;
-	blk_queue_hardsect_size(cdu31a_queue, 2048);
-
-	init_timer(&cdu31a_abort_timer);
-	cdu31a_abort_timer.function = handle_abort_timeout;
-
-	scd_info.mask = deficiency;
-	scd_gendisk = disk;
-	if (register_cdrom(&scd_info))
-		goto err;
-	disk->queue = cdu31a_queue;
-	add_disk(disk);
-
-	disk_changed = 1;
-	return 0;
-
-err:
-	blk_cleanup_queue(cdu31a_queue);
-errout0:
-	if (cdu31a_irq)
-		free_irq(cdu31a_irq, NULL);
-	printk(KERN_ERR PFX "Unable to register with Uniform cdrom driver\n");
-	put_disk(disk);
-errout1:
-	if (unregister_blkdev(MAJOR_NR, "cdu31a")) {
-		printk(KERN_WARNING PFX "Can't unregister block device\n");
-	}
-errout2:
-	release_region(cdu31a_port, 4);
-errout3:
-	return -EIO;
-}
-
-
-static void __exit cdu31a_exit(void)
-{
-	del_gendisk(scd_gendisk);
-	put_disk(scd_gendisk);
-	if (unregister_cdrom(&scd_info)) {
-		printk(KERN_WARNING PFX "Can't unregister from Uniform "
-				"cdrom driver\n");
-		return;
-	}
-	if ((unregister_blkdev(MAJOR_NR, "cdu31a") == -EINVAL)) {
-		printk(KERN_WARNING PFX "Can't unregister\n");
-		return;
-	}
-
-	blk_cleanup_queue(cdu31a_queue);
-
-	if (cdu31a_irq > 0)
-		free_irq(cdu31a_irq, NULL);
-
-	release_region(cdu31a_port, 4);
-	printk(KERN_INFO PFX "module released.\n");
-}
-
-#ifdef MODULE
-module_init(cdu31a_init);
-#endif
-module_exit(cdu31a_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_BLOCKDEV_MAJOR(CDU31A_CDROM_MAJOR);