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, 1594 deletions

diff --git a/drivers/cdrom/cm206.c b/drivers/cdrom/cm206.c
deleted file mode 100644
index 2f8fe3b6bbd0..000000000000
--- a/drivers/cdrom/cm206.c
+++ /dev/null
@@ -1,1594 +0,0 @@
-/* cm206.c. A linux-driver for the cm206 cdrom player with cm260 adapter card.
-   Copyright (c) 1995--1997 David A. van Leeuwen.
-   $Id: cm206.c,v 1.5 1997/12/26 11:02:51 david Exp $
-   
-     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.
-
-History:
- Started 25 jan 1994. Waiting for documentation...
- 22 feb 1995: 0.1a first reasonably safe polling driver.
-	      Two major bugs, one in read_sector and one in 
-	      do_cm206_request, happened to cancel!
- 25 feb 1995: 0.2a first reasonable interrupt driven version of above.
-              uart writes are still done in polling mode. 
- 25 feb 1995: 0.21a writes also in interrupt mode, still some
-	      small bugs to be found... Larger buffer. 
-  2 mrt 1995: 0.22 Bug found (cd-> nowhere, interrupt was called in
-              initialization), read_ahead of 16. Timeouts implemented.
-	      unclear if they do something...
-  7 mrt 1995: 0.23 Start of background read-ahead.
- 18 mrt 1995: 0.24 Working background read-ahead. (still problems)
- 26 mrt 1995: 0.25 Multi-session ioctl added (kernel v1.2).
-              Statistics implemented, though separate stats206.h.
-	      Accessible through ioctl 0x1000 (just a number).
-	      Hard to choose between v1.2 development and 1.1.75.
-	      Bottom-half doesn't work with 1.2...
-	      0.25a: fixed... typo. Still problems...
-  1 apr 1995: 0.26 Module support added. Most bugs found. Use kernel 1.2.n.
-  5 apr 1995: 0.27 Auto-probe for the adapter card base address.
-              Auto-probe for the adaptor card irq line.
-  7 apr 1995: 0.28 Added lilo setup support for base address and irq.
-              Use major number 32 (not in this source), officially
-	      assigned to this driver.
-  9 apr 1995: 0.29 Added very limited audio support. Toc_header, stop, pause,
-              resume, eject. Play_track ignores track info, because we can't 
-	      read a table-of-contents entry. Toc_entry is implemented
-	      as a `placebo' function: always returns start of disc. 
-  3 may 1995: 0.30 Audio support completed. The get_toc_entry function
-              is implemented as a binary search. 
- 15 may 1995: 0.31 More work on audio stuff. Workman is not easy to 
-              satisfy; changed binary search into linear search.
-	      Auto-probe for base address somewhat relaxed.
-  1 jun 1995: 0.32 Removed probe_irq_on/off for module version.
- 10 jun 1995: 0.33 Workman still behaves funny, but you should be
-              able to eject and substitute another disc.
-
- An adaptation of 0.33 is included in linux-1.3.7 by Eberhard Moenkeberg
-
- 18 jul 1995: 0.34 Patch by Heiko Eissfeldt included, mainly considering 
-              verify_area's in the ioctls. Some bugs introduced by 
-	      EM considering the base port and irq fixed. 
-
- 18 dec 1995: 0.35 Add some code for error checking... no luck...
-
- We jump to reach our goal: version 1.0 in the next stable linux kernel.
-
- 19 mar 1996: 0.95 Different implementation of CDROM_GET_UPC, on
-	      request of Thomas Quinot. 
- 25 mar 1996: 0.96 Interpretation of opening with O_WRONLY or O_RDWR:
-	      open only for ioctl operation, e.g., for operation of
-	      tray etc.
- 4 apr 1996:  0.97 First implementation of layer between VFS and cdrom
-              driver, a generic interface. Much of the functionality
-	      of cm206_open() and cm206_ioctl() is transferred to a
-	      new file cdrom.c and its header ucdrom.h. 
-
-	      Upgrade to Linux kernel 1.3.78. 
-
- 11 apr 1996  0.98 Upgrade to Linux kernel 1.3.85
-              More code moved to cdrom.c
- 
- 	      0.99 Some more small changes to decrease number
- 	      of oopses at module load; 
- 
- 27 jul 1996  0.100 Many hours of debugging, kernel change from 1.2.13
-	      to 2.0.7 seems to have introduced some weird behavior
-	      in (interruptible_)sleep_on(&cd->data): the process
-	      seems to be woken without any explicit wake_up in my own
-	      code. Patch to try 100x in case such untriggered wake_up's 
-	      occur. 
-
- 28 jul 1996  0.101 Rewriting of the code that receives the command echo,
-	      using a fifo to store echoed bytes. 
-
- 	      Branch from 0.99:
- 
- 	      0.99.1.0 Update to kernel release 2.0.10 dev_t -> kdev_t
- 	      (emoenke) various typos found by others.  extra
- 	      module-load oops protection.
- 
- 	      0.99.1.1 Initialization constant cdrom_dops.speed
- 	      changed from float (2.0) to int (2); Cli()-sti() pair
- 	      around cm260_reset() in module initialization code.
- 
- 	      0.99.1.2 Changes literally as proposed by Scott Snyder
- 	      <snyder@d0sgif.fnal.gov> for the 2.1 kernel line, which
- 	      have to do mainly with the poor minor support i had. The
- 	      major new concept is to change a cdrom driver's
- 	      operations struct from the capabilities struct. This
- 	      reflects the fact that there is one major for a driver,
- 	      whilst there can be many minors whith completely
- 	      different capabilities.
-
-	      0.99.1.3 More changes for operations/info separation.
-
-	      0.99.1.4 Added speed selection (someone had to do this
-	      first).
-
-  23 jan 1997 0.99.1.5 MODULE_PARMS call added.
-
-  23 jan 1997 0.100.1.2--0.100.1.5 following similar lines as 
-  	      0.99.1.1--0.99.1.5. I get too many complaints about the
-	      drive making read errors. What't wrong with the 2.0+
-	      kernel line? Why get i (and othe cm206 owners) weird
-	      results? Why were things good in the good old 1.1--1.2 
-	      era? Why don't i throw away the drive?
-
- 2 feb 1997   0.102 Added `volatile' to values in cm206_struct. Seems to 
- 	      reduce many of the problems. Rewrote polling routines
-	      to use fixed delays between polls. 
-	      0.103 Changed printk behavior. 
-	      0.104 Added a 0.100 -> 0.100.1.1 change
-
-11 feb 1997   0.105 Allow auto_probe during module load, disable
-              with module option "auto_probe=0". Moved some debugging
-	      statements to lower priority. Implemented select_speed()
-	      function. 
-
-13 feb 1997   1.0 Final version for 2.0 kernel line. 
-
-	      All following changes will be for the 2.1 kernel line. 
-
-15 feb 1997   1.1 Keep up with kernel 2.1.26, merge in changes from 
-              cdrom.c 0.100.1.1--1.0. Add some more MODULE_PARMS. 
-
-14 sep 1997   1.2 Upgrade to Linux 2.1.55.  Added blksize_size[], patch
-              sent by James Bottomley <James.Bottomley@columbiasc.ncr.com>.
-
-21 dec 1997   1.4 Upgrade to Linux 2.1.72.  
-
-24 jan 1998   Removed the cm206_disc_status() function, as it was now dead
-              code.  The Uniform CDROM driver now provides this functionality.
-	      
-9 Nov. 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>
- * 
- * Parts of the code are based upon lmscd.c written by Kai Petzke,
- * sbpcd.c written by Eberhard Moenkeberg, and mcd.c by Martin
- * Harriss, but any off-the-shelf dynamic programming algorithm won't
- * be able to find them.
- *
- * The cm206 drive interface and the cm260 adapter card seem to be 
- * sufficiently different from their cm205/cm250 counterparts
- * in order to write a complete new driver.
- * 
- * I call all routines connected to the Linux kernel something
- * with `cm206' in it, as this stuff is too series-dependent. 
- * 
- * Currently, my limited knowledge is based on:
- * - The Linux Kernel Hacker's guide, v. 0.5, by Michael K. Johnson
- * - Linux Kernel Programmierung, by Michael Beck and others
- * - Philips/LMS cm206 and cm226 product specification
- * - Philips/LMS cm260 product specification
- *
- * David van Leeuwen, david@tm.tno.nl.  */
-#define REVISION "$Revision: 1.5 $"
-
-#include <linux/module.h>
-
-#include <linux/errno.h>	/* These include what we really need */
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-#include <linux/cdrom.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-/* #include <linux/ucdrom.h> */
-
-#include <asm/io.h>
-
-#define MAJOR_NR CM206_CDROM_MAJOR
-
-#include <linux/blkdev.h>
-
-#undef DEBUG
-#define STATISTICS		/* record times and frequencies of events */
-#define AUTO_PROBE_MODULE
-#define USE_INSW
-
-#include "cm206.h"
-
-/* This variable defines whether or not to probe for adapter base port 
-   address and interrupt request. It can be overridden by the boot 
-   parameter `auto'.
-*/
-static int auto_probe = 1;	/* Yes, why not? */
-
-static int cm206_base = CM206_BASE;
-static int cm206_irq = CM206_IRQ;
-#ifdef MODULE
-static int cm206[2] = { 0, 0 };	/* for compatible `insmod' parameter passing */
-module_param_array(cm206, int, NULL, 0);	/* base,irq or irq,base */
-#endif
-
-module_param(cm206_base, int, 0);	/* base */
-module_param(cm206_irq, int, 0);	/* irq */
-module_param(auto_probe, bool, 0);	/* auto probe base and irq */
-MODULE_LICENSE("GPL");
-
-#define POLLOOP 100		/* milliseconds */
-#define READ_AHEAD 1		/* defines private buffer, waste! */
-#define BACK_AHEAD 1		/* defines adapter-read ahead */
-#define DATA_TIMEOUT (3*HZ)	/* measured in jiffies (10 ms) */
-#define UART_TIMEOUT (5*HZ/100)
-#define DSB_TIMEOUT (7*HZ)	/* time for the slowest command to finish */
-#define UR_SIZE 4		/* uart receive buffer fifo size */
-
-#define LINUX_BLOCK_SIZE 512	/* WHERE is this defined? */
-#define RAW_SECTOR_SIZE 2352	/* ok, is also defined in cdrom.h */
-#define ISO_SECTOR_SIZE 2048
-#define BLOCKS_ISO (ISO_SECTOR_SIZE/LINUX_BLOCK_SIZE)	/* 4 */
-#define CD_SYNC_HEAD 16		/* CD_SYNC + CD_HEAD */
-
-#ifdef STATISTICS		/* keep track of errors in counters */
-#define stats(i) { ++cd->stats[st_ ## i]; \
-		     cd->last_stat[st_ ## i] = cd->stat_counter++; \
-		 }
-#else
-#define stats(i) (void) 0;
-#endif
-
-#define Debug(a) {printk (KERN_DEBUG); printk a;}
-#ifdef DEBUG
-#define debug(a) Debug(a)
-#else
-#define debug(a) (void) 0;
-#endif
-
-typedef unsigned char uch;	/* 8-bits */
-typedef unsigned short ush;	/* 16-bits */
-
-struct toc_struct {		/* private copy of Table of Contents */
-	uch track, fsm[3], q0;
-};
-
-struct cm206_struct {
-	volatile ush intr_ds;	/* data status read on last interrupt */
-	volatile ush intr_ls;	/* uart line status read on last interrupt */
-	volatile uch ur[UR_SIZE];	/* uart receive buffer fifo */
-	volatile uch ur_w, ur_r;	/* write/read buffer index */
-	volatile uch dsb, cc;	/* drive status byte and condition (error) code */
-	int command;		/* command to be written to the uart */
-	int openfiles;
-	ush sector[READ_AHEAD * RAW_SECTOR_SIZE / 2];	/* buffered cd-sector */
-	int sector_first, sector_last;	/* range of these sectors */
-	wait_queue_head_t uart;	/* wait queues for interrupt */
-	wait_queue_head_t data;
-	struct timer_list timer;	/* time-out */
-	char timed_out;
-	signed char max_sectors;	/* number of sectors that fit in adapter mem */
-	char wait_back;		/* we're waiting for a background-read */
-	char background;	/* is a read going on in the background? */
-	int adapter_first;	/* if so, that's the starting sector */
-	int adapter_last;
-	char fifo_overflowed;
-	uch disc_status[7];	/* result of get_disc_status command */
-#ifdef STATISTICS
-	int stats[NR_STATS];
-	int last_stat[NR_STATS];	/* `time' at which stat was stat */
-	int stat_counter;
-#endif
-	struct toc_struct toc[101];	/* The whole table of contents + lead-out */
-	uch q[10];		/* Last read q-channel info */
-	uch audio_status[5];	/* last read position on pause */
-	uch media_changed;	/* record if media changed */
-};
-
-#define DISC_STATUS cd->disc_status[0]
-#define FIRST_TRACK cd->disc_status[1]
-#define LAST_TRACK cd->disc_status[2]
-#define PAUSED cd->audio_status[0]	/* misuse this memory byte! */
-#define PLAY_TO cd->toc[0]	/* toc[0] records end-time in play */
-
-static struct cm206_struct *cd;	/* the main memory structure */
-static struct request_queue *cm206_queue;
-static DEFINE_SPINLOCK(cm206_lock);
-
-/* First, we define some polling functions. These are actually
-   only being used in the initialization. */
-
-static void send_command_polled(int command)
-{
-	int loop = POLLOOP;
-	while (!(inw(r_line_status) & ls_transmitter_buffer_empty)
-	       && loop > 0) {
-		mdelay(1);	/* one millisec delay */
-		--loop;
-	}
-	outw(command, r_uart_transmit);
-}
-
-static uch receive_echo_polled(void)
-{
-	int loop = POLLOOP;
-	while (!(inw(r_line_status) & ls_receive_buffer_full) && loop > 0) {
-		mdelay(1);
-		--loop;
-	}
-	return ((uch) inw(r_uart_receive));
-}
-
-static uch send_receive_polled(int command)
-{
-	send_command_polled(command);
-	return receive_echo_polled();
-}
-
-static inline void clear_ur(void)
-{
-	if (cd->ur_r != cd->ur_w) {
-		debug(("Deleting bytes from fifo:"));
-		for (; cd->ur_r != cd->ur_w;
-		     cd->ur_r++, cd->ur_r %= UR_SIZE)
-			debug((" 0x%x", cd->ur[cd->ur_r]));
-		debug(("\n"));
-	}
-}
-
-static struct tasklet_struct cm206_tasklet;
-
-/* The interrupt handler. When the cm260 generates an interrupt, very
-   much care has to be taken in reading out the registers in the right
-   order; in case of a receive_buffer_full interrupt, first the
-   uart_receive must be read, and then the line status again to
-   de-assert the interrupt line. It took me a couple of hours to find
-   this out:-( 
-
-   The function reset_cm206 appears to cause an interrupt, because
-   pulling up the INIT line clears both the uart-write-buffer /and/
-   the uart-write-buffer-empty mask. We call this a `lost interrupt,'
-   as there seems so reason for this to happen.
-*/
-
-static irqreturn_t cm206_interrupt(int sig, void *dev_id)
-{
-	volatile ush fool;
-	cd->intr_ds = inw(r_data_status);	/* resets data_ready, data_error,
-						   crc_error, sync_error, toc_ready 
-						   interrupts */
-	cd->intr_ls = inw(r_line_status);	/* resets overrun bit */
-	debug(("Intr, 0x%x 0x%x, %d\n", cd->intr_ds, cd->intr_ls,
-	       cd->background));
-	if (cd->intr_ls & ls_attention)
-		stats(attention);
-	/* receive buffer full? */
-	if (cd->intr_ls & ls_receive_buffer_full) {
-		cd->ur[cd->ur_w] = inb(r_uart_receive);	/* get order right! */
-		cd->intr_ls = inw(r_line_status);	/* resets rbf interrupt */
-		debug(("receiving #%d: 0x%x\n", cd->ur_w,
-		       cd->ur[cd->ur_w]));
-		cd->ur_w++;
-		cd->ur_w %= UR_SIZE;
-		if (cd->ur_w == cd->ur_r)
-			debug(("cd->ur overflow!\n"));
-		if (waitqueue_active(&cd->uart) && cd->background < 2) {
-			del_timer(&cd->timer);
-			wake_up_interruptible(&cd->uart);
-		}
-	}
-	/* data ready in fifo? */
-	else if (cd->intr_ds & ds_data_ready) {
-		if (cd->background)
-			++cd->adapter_last;
-		if (waitqueue_active(&cd->data)
-		    && (cd->wait_back || !cd->background)) {
-			del_timer(&cd->timer);
-			wake_up_interruptible(&cd->data);
-		}
-		stats(data_ready);
-	}
-	/* ready to issue a write command? */
-	else if (cd->command && cd->intr_ls & ls_transmitter_buffer_empty) {
-		outw(dc_normal | (inw(r_data_status) & 0x7f),
-		     r_data_control);
-		outw(cd->command, r_uart_transmit);
-		cd->command = 0;
-		if (!cd->background)
-			wake_up_interruptible(&cd->uart);
-	}
-	/* now treat errors (at least, identify them for debugging) */
-	else if (cd->intr_ds & ds_fifo_overflow) {
-		debug(("Fifo overflow at sectors 0x%x\n",
-		       cd->sector_first));
-		fool = inw(r_fifo_output_buffer);	/* de-assert the interrupt */
-		cd->fifo_overflowed = 1;	/* signal one word less should be read */
-		stats(fifo_overflow);
-	} else if (cd->intr_ds & ds_data_error) {
-		debug(("Data error at sector 0x%x\n", cd->sector_first));
-		stats(data_error);
-	} else if (cd->intr_ds & ds_crc_error) {
-		debug(("CRC error at sector 0x%x\n", cd->sector_first));
-		stats(crc_error);
-	} else if (cd->intr_ds & ds_sync_error) {
-		debug(("Sync at sector 0x%x\n", cd->sector_first));
-		stats(sync_error);
-	} else if (cd->intr_ds & ds_toc_ready) {
-		/* do something appropriate */
-	}
-	/* couldn't see why this interrupt, maybe due to init */
-	else {
-		outw(dc_normal | READ_AHEAD, r_data_control);
-		stats(lost_intr);
-	}
-	if (cd->background
-	    && (cd->adapter_last - cd->adapter_first == cd->max_sectors
-		|| cd->fifo_overflowed))
-		tasklet_schedule(&cm206_tasklet);	/* issue a stop read command */
-	stats(interrupt);
-	return IRQ_HANDLED;
-}
-
-/* we have put the address of the wait queue in who */
-static void cm206_timeout(unsigned long who)
-{
-	cd->timed_out = 1;
-	debug(("Timing out\n"));
-	wake_up_interruptible((wait_queue_head_t *) who);
-}
-
-/* This function returns 1 if a timeout occurred, 0 if an interrupt
-   happened */
-static int sleep_or_timeout(wait_queue_head_t * wait, int timeout)
-{
-	cd->timed_out = 0;
-	init_timer(&cd->timer);
-	cd->timer.data = (unsigned long) wait;
-	cd->timer.expires = jiffies + timeout;
-	add_timer(&cd->timer);
-	debug(("going to sleep\n"));
-	interruptible_sleep_on(wait);
-	del_timer(&cd->timer);
-	if (cd->timed_out) {
-		cd->timed_out = 0;
-		return 1;
-	} else
-		return 0;
-}
-
-static void send_command(int command)
-{
-	debug(("Sending 0x%x\n", command));
-	if (!(inw(r_line_status) & ls_transmitter_buffer_empty)) {
-		cd->command = command;
-		cli();		/* don't interrupt before sleep */
-		outw(dc_mask_sync_error | dc_no_stop_on_error |
-		     (inw(r_data_status) & 0x7f), r_data_control);
-		/* interrupt routine sends command */
-		if (sleep_or_timeout(&cd->uart, UART_TIMEOUT)) {
-			debug(("Time out on write-buffer\n"));
-			stats(write_timeout);
-			outw(command, r_uart_transmit);
-		}
-		debug(("Write commmand delayed\n"));
-	} else
-		outw(command, r_uart_transmit);
-}
-
-static uch receive_byte(int timeout)
-{
-	uch ret;
-	cli();
-	debug(("cli\n"));
-	ret = cd->ur[cd->ur_r];
-	if (cd->ur_r != cd->ur_w) {
-		sti();
-		debug(("returning #%d: 0x%x\n", cd->ur_r,
-		       cd->ur[cd->ur_r]));
-		cd->ur_r++;
-		cd->ur_r %= UR_SIZE;
-		return ret;
-	} else if (sleep_or_timeout(&cd->uart, timeout)) {	/* does sti() */
-		debug(("Time out on receive-buffer\n"));
-#ifdef STATISTICS
-		if (timeout == UART_TIMEOUT)
-			stats(receive_timeout)	/* no `;'! */
-			    else
-			stats(dsb_timeout);
-#endif
-		return 0xda;
-	}
-	ret = cd->ur[cd->ur_r];
-	debug(("slept; returning #%d: 0x%x\n", cd->ur_r,
-	       cd->ur[cd->ur_r]));
-	cd->ur_r++;
-	cd->ur_r %= UR_SIZE;
-	return ret;
-}
-
-static inline uch receive_echo(void)
-{
-	return receive_byte(UART_TIMEOUT);
-}
-
-static inline uch send_receive(int command)
-{
-	send_command(command);
-	return receive_echo();
-}
-
-static inline uch wait_dsb(void)
-{
-	return receive_byte(DSB_TIMEOUT);
-}
-
-static int type_0_command(int command, int expect_dsb)
-{
-	int e;
-	clear_ur();
-	if (command != (e = send_receive(command))) {
-		debug(("command 0x%x echoed as 0x%x\n", command, e));
-		stats(echo);
-		return -1;
-	}
-	if (expect_dsb) {
-		cd->dsb = wait_dsb();	/* wait for command to finish */
-	}
-	return 0;
-}
-
-static int type_1_command(int command, int bytes, uch * status)
-{				/* returns info */
-	int i;
-	if (type_0_command(command, 0))
-		return -1;
-	for (i = 0; i < bytes; i++)
-		status[i] = send_receive(c_gimme);
-	return 0;
-}
-
-/* This function resets the adapter card. We'd better not do this too
- * often, because it tends to generate `lost interrupts.' */
-static void reset_cm260(void)
-{
-	outw(dc_normal | dc_initialize | READ_AHEAD, r_data_control);
-	udelay(10);		/* 3.3 mu sec minimum */
-	outw(dc_normal | READ_AHEAD, r_data_control);
-}
-
-/* fsm: frame-sec-min from linear address; one of many */
-static void fsm(int lba, uch * fsm)
-{
-	fsm[0] = lba % 75;
-	lba /= 75;
-	lba += 2;
-	fsm[1] = lba % 60;
-	fsm[2] = lba / 60;
-}
-
-static inline int fsm2lba(uch * fsm)
-{
-	return fsm[0] + 75 * (fsm[1] - 2 + 60 * fsm[2]);
-}
-
-static inline int f_s_m2lba(uch f, uch s, uch m)
-{
-	return f + 75 * (s - 2 + 60 * m);
-}
-
-static int start_read(int start)
-{
-	uch read_sector[4] = { c_read_data, };
-	int i, e;
-
-	fsm(start, &read_sector[1]);
-	clear_ur();
-	for (i = 0; i < 4; i++)
-		if (read_sector[i] != (e = send_receive(read_sector[i]))) {
-			debug(("read_sector: %x echoes %x\n",
-			       read_sector[i], e));
-			stats(echo);
-			if (e == 0xff) {	/* this seems to happen often */
-				e = receive_echo();
-				debug(("Second try %x\n", e));
-				if (e != read_sector[i])
-					return -1;
-			}
-		}
-	return 0;
-}
-
-static int stop_read(void)
-{
-	int e;
-	type_0_command(c_stop, 0);
-	if ((e = receive_echo()) != 0xff) {
-		debug(("c_stop didn't send 0xff, but 0x%x\n", e));
-		stats(stop_0xff);
-		return -1;
-	}
-	return 0;
-}
-
-/* This function starts to read sectors in adapter memory, the
-   interrupt routine should stop the read. In fact, the bottom_half
-   routine takes care of this. Set a flag `background' in the cd
-   struct to indicate the process. */
-
-static int read_background(int start, int reading)
-{
-	if (cd->background)
-		return -1;	/* can't do twice */
-	outw(dc_normal | BACK_AHEAD, r_data_control);
-	if (!reading && start_read(start))
-		return -2;
-	cd->adapter_first = cd->adapter_last = start;
-	cd->background = 1;	/* flag a read is going on */
-	return 0;
-}
-
-#ifdef USE_INSW
-#define transport_data insw
-#else
-/* this routine implements insw(,,). There was a time i had the
-   impression that there would be any difference in error-behaviour. */
-void transport_data(int port, ush * dest, int count)
-{
-	int i;
-	ush *d;
-	for (i = 0, d = dest; i < count; i++, d++)
-		*d = inw(port);
-}
-#endif
-
-
-#define MAX_TRIES 100
-static int read_sector(int start)
-{
-	int tries = 0;
-	if (cd->background) {
-		cd->background = 0;
-		cd->adapter_last = -1;	/* invalidate adapter memory */
-		stop_read();
-	}
-	cd->fifo_overflowed = 0;
-	reset_cm260();		/* empty fifo etc. */
-	if (start_read(start))
-		return -1;
-	do {
-		if (sleep_or_timeout(&cd->data, DATA_TIMEOUT)) {
-			debug(("Read timed out sector 0x%x\n", start));
-			stats(read_timeout);
-			stop_read();
-			return -3;
-		}
-		tries++;
-	} while (cd->intr_ds & ds_fifo_empty && tries < MAX_TRIES);
-	if (tries > 1)
-		debug(("Took me some tries\n"))
-		    else
-	if (tries == MAX_TRIES)
-		debug(("MAX_TRIES tries for read sector\n"));
-	transport_data(r_fifo_output_buffer, cd->sector,
-		       READ_AHEAD * RAW_SECTOR_SIZE / 2);
-	if (read_background(start + READ_AHEAD, 1))
-		stats(read_background);
-	cd->sector_first = start;
-	cd->sector_last = start + READ_AHEAD;
-	stats(read_restarted);
-	return 0;
-}
-
-/* The function of bottom-half is to send a stop command to the drive
-   This isn't easy because the routine is not `owned' by any process;
-   we can't go to sleep! The variable cd->background gives the status:
-   0 no read pending
-   1 a read is pending
-   2 c_stop waits for write_buffer_empty
-   3 c_stop waits for receive_buffer_full: echo
-   4 c_stop waits for receive_buffer_full: 0xff
-*/
-
-static void cm206_tasklet_func(unsigned long ignore)
-{
-	debug(("bh: %d\n", cd->background));
-	switch (cd->background) {
-	case 1:
-		stats(bh);
-		if (!(cd->intr_ls & ls_transmitter_buffer_empty)) {
-			cd->command = c_stop;
-			outw(dc_mask_sync_error | dc_no_stop_on_error |
-			     (inw(r_data_status) & 0x7f), r_data_control);
-			cd->background = 2;
-			break;	/* we'd better not time-out here! */
-		} else
-			outw(c_stop, r_uart_transmit);
-		/* fall into case 2: */
-	case 2:
-		/* the write has been satisfied by interrupt routine */
-		cd->background = 3;
-		break;
-	case 3:
-		if (cd->ur_r != cd->ur_w) {
-			if (cd->ur[cd->ur_r] != c_stop) {
-				debug(("cm206_bh: c_stop echoed 0x%x\n",
-				       cd->ur[cd->ur_r]));
-				stats(echo);
-			}
-			cd->ur_r++;
-			cd->ur_r %= UR_SIZE;
-		}
-		cd->background++;
-		break;
-	case 4:
-		if (cd->ur_r != cd->ur_w) {
-			if (cd->ur[cd->ur_r] != 0xff) {
-				debug(("cm206_bh: c_stop reacted with 0x%x\n", cd->ur[cd->ur_r]));
-				stats(stop_0xff);
-			}
-			cd->ur_r++;
-			cd->ur_r %= UR_SIZE;
-		}
-		cd->background = 0;
-	}
-}
-
-static DECLARE_TASKLET(cm206_tasklet, cm206_tasklet_func, 0);
-
-/* This command clears the dsb_possible_media_change flag, so we must 
- * retain it.
- */
-static void get_drive_status(void)
-{
-	uch status[2];
-	type_1_command(c_drive_status, 2, status);	/* this might be done faster */
-	cd->dsb = status[0];
-	cd->cc = status[1];
-	cd->media_changed |=
-	    !!(cd->dsb & (dsb_possible_media_change |
-			  dsb_drive_not_ready | dsb_tray_not_closed));
-}
-
-static void get_disc_status(void)
-{
-	if (type_1_command(c_disc_status, 7, cd->disc_status)) {
-		debug(("get_disc_status: error\n"));
-	}
-}
-
-/* The new open. The real opening strategy is defined in cdrom.c. */
-
-static int cm206_open(struct cdrom_device_info *cdi, int purpose)
-{
-	if (!cd->openfiles) {	/* reset only first time */
-		cd->background = 0;
-		reset_cm260();
-		cd->adapter_last = -1;	/* invalidate adapter memory */
-		cd->sector_last = -1;
-	}
-	++cd->openfiles;
-	stats(open);
-	return 0;
-}
-
-static void cm206_release(struct cdrom_device_info *cdi)
-{
-	if (cd->openfiles == 1) {
-		if (cd->background) {
-			cd->background = 0;
-			stop_read();
-		}
-		cd->sector_last = -1;	/* Make our internal buffer invalid */
-		FIRST_TRACK = 0;	/* No valid disc status */
-	}
-	--cd->openfiles;
-}
-
-/* Empty buffer empties $sectors$ sectors of the adapter card buffer,
- * and then reads a sector in kernel memory.  */
-static void empty_buffer(int sectors)
-{
-	while (sectors >= 0) {
-		transport_data(r_fifo_output_buffer,
-			       cd->sector + cd->fifo_overflowed,
-			       RAW_SECTOR_SIZE / 2 - cd->fifo_overflowed);
-		--sectors;
-		++cd->adapter_first;	/* update the current adapter sector */
-		cd->fifo_overflowed = 0;	/* reset overflow bit */
-		stats(sector_transferred);
-	}
-	cd->sector_first = cd->adapter_first - 1;
-	cd->sector_last = cd->adapter_first;	/* update the buffer sector */
-}
-
-/* try_adapter. This function determines if the requested sector is
-   in adapter memory, or will appear there soon. Returns 0 upon
-   success */
-static int try_adapter(int sector)
-{
-	if (cd->adapter_first <= sector && sector < cd->adapter_last) {
-		/* sector is in adapter memory */
-		empty_buffer(sector - cd->adapter_first);
-		return 0;
-	} else if (cd->background == 1 && cd->adapter_first <= sector
-		   && sector < cd->adapter_first + cd->max_sectors) {
-		/* a read is going on, we can wait for it */
-		cd->wait_back = 1;
-		while (sector >= cd->adapter_last) {
-			if (sleep_or_timeout(&cd->data, DATA_TIMEOUT)) {
-				debug(("Timed out during background wait: %d %d %d %d\n", sector, cd->adapter_last, cd->adapter_first, cd->background));
-				stats(back_read_timeout);
-				cd->wait_back = 0;
-				return -1;
-			}
-		}
-		cd->wait_back = 0;
-		empty_buffer(sector - cd->adapter_first);
-		return 0;
-	} else
-		return -2;
-}
-
-/* This is not a very smart implementation. We could optimize for 
-   consecutive block numbers. I'm not convinced this would really
-   bring down the processor load. */
-static void do_cm206_request(request_queue_t * q)
-{
-	long int i, cd_sec_no;
-	int quarter, error;
-	uch *source, *dest;
-	struct request *req;
-
-	while (1) {	/* repeat until all requests have been satisfied */
-		req = elv_next_request(q);
-		if (!req)
-			return;
-
-		if (rq_data_dir(req) != READ) {
-			debug(("Non-read command %d on cdrom\n", req->cmd));
-			end_request(req, 0);
-			continue;
-		}
-		spin_unlock_irq(q->queue_lock);
-		error = 0;
-		for (i = 0; i < req->nr_sectors; i++) {
-			int e1, e2;
-			cd_sec_no = (req->sector + i) / BLOCKS_ISO;	/* 4 times 512 bytes */
-			quarter = (req->sector + i) % BLOCKS_ISO;
-			dest = req->buffer + i * LINUX_BLOCK_SIZE;
-			/* is already in buffer memory? */
-			if (cd->sector_first <= cd_sec_no
-			    && cd_sec_no < cd->sector_last) {
-				source =
-				    ((uch *) cd->sector) + 16 +
-				    quarter * LINUX_BLOCK_SIZE +
-				    (cd_sec_no -
-				     cd->sector_first) * RAW_SECTOR_SIZE;
-				memcpy(dest, source, LINUX_BLOCK_SIZE);
-			} else if (!(e1 = try_adapter(cd_sec_no)) ||
-				   !(e2 = read_sector(cd_sec_no))) {
-				source =
-				    ((uch *) cd->sector) + 16 +
-				    quarter * LINUX_BLOCK_SIZE;
-				memcpy(dest, source, LINUX_BLOCK_SIZE);
-			} else {
-				error = 1;
-				debug(("cm206_request: %d %d\n", e1, e2));
-			}
-		}
-		spin_lock_irq(q->queue_lock);
-		end_request(req, !error);
-	}
-}
-
-/* Audio support. I've tried very hard, but the cm206 drive doesn't 
-   seem to have a get_toc (table-of-contents) function, while i'm
-   pretty sure it must read the toc upon disc insertion. Therefore
-   this function has been implemented through a binary search 
-   strategy. All track starts that happen to be found are stored in
-   cd->toc[], for future use. 
-
-   I've spent a whole day on a bug that only shows under Workman---
-   I don't get it. Tried everything, nothing works. If workman asks
-   for track# 0xaa, it'll get the wrong time back. Any other program
-   receives the correct value. I'm stymied.
-*/
-
-/* seek seeks to address lba. It does wait to arrive there. */
-static void seek(int lba)
-{
-	int i;
-	uch seek_command[4] = { c_seek, };
-
-	fsm(lba, &seek_command[1]);
-	for (i = 0; i < 4; i++)
-		type_0_command(seek_command[i], 0);
-	cd->dsb = wait_dsb();
-}
-
-static uch bcdbin(unsigned char bcd)
-{				/* stolen from mcd.c! */
-	return (bcd >> 4) * 10 + (bcd & 0xf);
-}
-
-static inline uch normalize_track(uch track)
-{
-	if (track < 1)
-		return 1;
-	if (track > LAST_TRACK)
-		return LAST_TRACK + 1;
-	return track;
-}
-
-/* This function does a binary search for track start. It records all
- * tracks seen in the process. Input $track$ must be between 1 and
- * #-of-tracks+1.  Note that the start of the disc must be in toc[1].fsm. 
- */
-static int get_toc_lba(uch track)
-{
-	int max = 74 * 60 * 75 - 150, min = fsm2lba(cd->toc[1].fsm);
-	int i, lba, l, old_lba = 0;
-	uch *q = cd->q;
-	uch ct;			/* current track */
-	int binary = 0;
-	const int skip = 3 * 60 * 75;	/* 3 minutes */
-
-	for (i = track; i > 0; i--)
-		if (cd->toc[i].track) {
-			min = fsm2lba(cd->toc[i].fsm);
-			break;
-		}
-	lba = min + skip;
-	do {
-		seek(lba);
-		type_1_command(c_read_current_q, 10, q);
-		ct = normalize_track(q[1]);
-		if (!cd->toc[ct].track) {
-			l = q[9] - bcdbin(q[5]) + 75 * (q[8] -
-							bcdbin(q[4]) - 2 +
-							60 * (q[7] -
-							      bcdbin(q
-								     [3])));
-			cd->toc[ct].track = q[1];	/* lead out still 0xaa */
-			fsm(l, cd->toc[ct].fsm);
-			cd->toc[ct].q0 = q[0];	/* contains adr and ctrl info */
-			if (ct == track)
-				return l;
-		}
-		old_lba = lba;
-		if (binary) {
-			if (ct < track)
-				min = lba;
-			else
-				max = lba;
-			lba = (min + max) / 2;
-		} else {
-			if (ct < track)
-				lba += skip;
-			else {
-				binary = 1;
-				max = lba;
-				min = lba - skip;
-				lba = (min + max) / 2;
-			}
-		}
-	} while (lba != old_lba);
-	return lba;
-}
-
-static void update_toc_entry(uch track)
-{
-	track = normalize_track(track);
-	if (!cd->toc[track].track)
-		get_toc_lba(track);
-}
-
-/* return 0 upon success */
-static int read_toc_header(struct cdrom_tochdr *hp)
-{
-	if (!FIRST_TRACK)
-		get_disc_status();
-	if (hp) {
-		int i;
-		hp->cdth_trk0 = FIRST_TRACK;
-		hp->cdth_trk1 = LAST_TRACK;
-		/* fill in first track position */
-		for (i = 0; i < 3; i++)
-			cd->toc[1].fsm[i] = cd->disc_status[3 + i];
-		update_toc_entry(LAST_TRACK + 1);	/* find most entries */
-		return 0;
-	}
-	return -1;
-}
-
-static void play_from_to_msf(struct cdrom_msf *msfp)
-{
-	uch play_command[] = { c_play,
-		msfp->cdmsf_frame0, msfp->cdmsf_sec0, msfp->cdmsf_min0,
-		msfp->cdmsf_frame1, msfp->cdmsf_sec1, msfp->cdmsf_min1, 2,
-		    2
-	};
-	int i;
-	for (i = 0; i < 9; i++)
-		type_0_command(play_command[i], 0);
-	for (i = 0; i < 3; i++)
-		PLAY_TO.fsm[i] = play_command[i + 4];
-	PLAY_TO.track = 0;	/* say no track end */
-	cd->dsb = wait_dsb();
-}
-
-static void play_from_to_track(int from, int to)
-{
-	uch play_command[8] = { c_play, };
-	int i;
-
-	if (from == 0) {	/* continue paused play */
-		for (i = 0; i < 3; i++) {
-			play_command[i + 1] = cd->audio_status[i + 2];
-			play_command[i + 4] = PLAY_TO.fsm[i];
-		}
-	} else {
-		update_toc_entry(from);
-		update_toc_entry(to + 1);
-		for (i = 0; i < 3; i++) {
-			play_command[i + 1] = cd->toc[from].fsm[i];
-			PLAY_TO.fsm[i] = play_command[i + 4] =
-			    cd->toc[to + 1].fsm[i];
-		}
-		PLAY_TO.track = to;
-	}
-	for (i = 0; i < 7; i++)
-		type_0_command(play_command[i], 0);
-	for (i = 0; i < 2; i++)
-		type_0_command(0x2, 0);	/* volume */
-	cd->dsb = wait_dsb();
-}
-
-static int get_current_q(struct cdrom_subchnl *qp)
-{
-	int i;
-	uch *q = cd->q;
-	if (type_1_command(c_read_current_q, 10, q))
-		return 0;
-/*  q[0] = bcdbin(q[0]); Don't think so! */
-	for (i = 2; i < 6; i++)
-		q[i] = bcdbin(q[i]);
-	qp->cdsc_adr = q[0] & 0xf;
-	qp->cdsc_ctrl = q[0] >> 4;	/* from mcd.c */
-	qp->cdsc_trk = q[1];
-	qp->cdsc_ind = q[2];
-	if (qp->cdsc_format == CDROM_MSF) {
-		qp->cdsc_reladdr.msf.minute = q[3];
-		qp->cdsc_reladdr.msf.second = q[4];
-		qp->cdsc_reladdr.msf.frame = q[5];
-		qp->cdsc_absaddr.msf.minute = q[7];
-		qp->cdsc_absaddr.msf.second = q[8];
-		qp->cdsc_absaddr.msf.frame = q[9];
-	} else {
-		qp->cdsc_reladdr.lba = f_s_m2lba(q[5], q[4], q[3]);
-		qp->cdsc_absaddr.lba = f_s_m2lba(q[9], q[8], q[7]);
-	}
-	get_drive_status();
-	if (cd->dsb & dsb_play_in_progress)
-		qp->cdsc_audiostatus = CDROM_AUDIO_PLAY;
-	else if (PAUSED)
-		qp->cdsc_audiostatus = CDROM_AUDIO_PAUSED;
-	else
-		qp->cdsc_audiostatus = CDROM_AUDIO_NO_STATUS;
-	return 0;
-}
-
-static void invalidate_toc(void)
-{
-	memset(cd->toc, 0, sizeof(cd->toc));
-	memset(cd->disc_status, 0, sizeof(cd->disc_status));
-}
-
-/* cdrom.c guarantees that cdte_format == CDROM_MSF */
-static void get_toc_entry(struct cdrom_tocentry *ep)
-{
-	uch track = normalize_track(ep->cdte_track);
-	update_toc_entry(track);
-	ep->cdte_addr.msf.frame = cd->toc[track].fsm[0];
-	ep->cdte_addr.msf.second = cd->toc[track].fsm[1];
-	ep->cdte_addr.msf.minute = cd->toc[track].fsm[2];
-	ep->cdte_adr = cd->toc[track].q0 & 0xf;
-	ep->cdte_ctrl = cd->toc[track].q0 >> 4;
-	ep->cdte_datamode = 0;
-}
-
-/* Audio ioctl.  Ioctl commands connected to audio are in such an
- * idiosyncratic i/o format, that we leave these untouched. Return 0
- * upon success. Memory checking has been done by cdrom_ioctl(), the
- * calling function, as well as LBA/MSF sanitization.
-*/
-static int cm206_audio_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
-			     void *arg)
-{
-	switch (cmd) {
-	case CDROMREADTOCHDR:
-		return read_toc_header((struct cdrom_tochdr *) arg);
-	case CDROMREADTOCENTRY:
-		get_toc_entry((struct cdrom_tocentry *) arg);
-		return 0;
-	case CDROMPLAYMSF:
-		play_from_to_msf((struct cdrom_msf *) arg);
-		return 0;
-	case CDROMPLAYTRKIND:	/* admittedly, not particularly beautiful */
-		play_from_to_track(((struct cdrom_ti *) arg)->cdti_trk0,
-				   ((struct cdrom_ti *) arg)->cdti_trk1);
-		return 0;
-	case CDROMSTOP:
-		PAUSED = 0;
-		if (cd->dsb & dsb_play_in_progress)
-			return type_0_command(c_stop, 1);
-		else
-			return 0;
-	case CDROMPAUSE:
-		get_drive_status();
-		if (cd->dsb & dsb_play_in_progress) {
-			type_0_command(c_stop, 1);
-			type_1_command(c_audio_status, 5,
-				       cd->audio_status);
-			PAUSED = 1;	/* say we're paused */
-		}
-		return 0;
-	case CDROMRESUME:
-		if (PAUSED)
-			play_from_to_track(0, 0);
-		PAUSED = 0;
-		return 0;
-	case CDROMSTART:
-	case CDROMVOLCTRL:
-		return 0;
-	case CDROMSUBCHNL:
-		return get_current_q((struct cdrom_subchnl *) arg);
-	default:
-		return -EINVAL;
-	}
-}
-
-static int cm206_media_changed(struct cdrom_device_info *cdi, int disc_nr)
-{
-	if (cd != NULL) {
-		int r;
-		get_drive_status();	/* ensure cd->media_changed OK */
-		r = cd->media_changed;
-		cd->media_changed = 0;	/* clear bit */
-		return r;
-	} else
-		return -EIO;
-}
-
-/* The new generic cdrom support. Routines should be concise, most of
-   the logic should be in cdrom.c */
-
-
-/* controls tray movement */
-static int cm206_tray_move(struct cdrom_device_info *cdi, int position)
-{
-	if (position) {		/* 1: eject */
-		type_0_command(c_open_tray, 1);
-		invalidate_toc();
-	} else
-		type_0_command(c_close_tray, 1);	/* 0: close */
-	return 0;
-}
-
-/* gives current state of the drive */
-static int cm206_drive_status(struct cdrom_device_info *cdi, int slot_nr)
-{
-	get_drive_status();
-	if (cd->dsb & dsb_tray_not_closed)
-		return CDS_TRAY_OPEN;
-	if (!(cd->dsb & dsb_disc_present))
-		return CDS_NO_DISC;
-	if (cd->dsb & dsb_drive_not_ready)
-		return CDS_DRIVE_NOT_READY;
-	return CDS_DISC_OK;
-}
-
-/* locks or unlocks door lock==1: lock; return 0 upon success */
-static int cm206_lock_door(struct cdrom_device_info *cdi, int lock)
-{
-	uch command = (lock) ? c_lock_tray : c_unlock_tray;
-	type_0_command(command, 1);	/* wait and get dsb */
-	/* the logic calculates the success, 0 means successful */
-	return lock ^ ((cd->dsb & dsb_tray_locked) != 0);
-}
-
-/* Although a session start should be in LBA format, we return it in 
-   MSF format because it is slightly easier, and the new generic ioctl
-   will take care of the necessary conversion. */
-static int cm206_get_last_session(struct cdrom_device_info *cdi,
-				  struct cdrom_multisession *mssp)
-{
-	if (!FIRST_TRACK)
-		get_disc_status();
-	if (mssp != NULL) {
-		if (DISC_STATUS & cds_multi_session) {	/* multi-session */
-			mssp->addr.msf.frame = cd->disc_status[3];
-			mssp->addr.msf.second = cd->disc_status[4];
-			mssp->addr.msf.minute = cd->disc_status[5];
-			mssp->addr_format = CDROM_MSF;
-			mssp->xa_flag = 1;
-		} else {
-			mssp->xa_flag = 0;
-		}
-		return 1;
-	}
-	return 0;
-}
-
-static int cm206_get_upc(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
-{
-	uch upc[10];
-	char *ret = mcn->medium_catalog_number;
-	int i;
-
-	if (type_1_command(c_read_upc, 10, upc))
-		return -EIO;
-	for (i = 0; i < 13; i++) {
-		int w = i / 2 + 1, r = i % 2;
-		if (r)
-			ret[i] = 0x30 | (upc[w] & 0x0f);
-		else
-			ret[i] = 0x30 | ((upc[w] >> 4) & 0x0f);
-	}
-	ret[13] = '\0';
-	return 0;
-}
-
-static int cm206_reset(struct cdrom_device_info *cdi)
-{
-	stop_read();
-	reset_cm260();
-	outw(dc_normal | dc_break | READ_AHEAD, r_data_control);
-	mdelay(1);		/* 750 musec minimum */
-	outw(dc_normal | READ_AHEAD, r_data_control);
-	cd->sector_last = -1;	/* flag no data buffered */
-	cd->adapter_last = -1;
-	invalidate_toc();
-	return 0;
-}
-
-static int cm206_select_speed(struct cdrom_device_info *cdi, int speed)
-{
-	int r;
-	switch (speed) {
-	case 0:
-		r = type_0_command(c_auto_mode, 1);
-		break;
-	case 1:
-		r = type_0_command(c_force_1x, 1);
-		break;
-	case 2:
-		r = type_0_command(c_force_2x, 1);
-		break;
-	default:
-		return -1;
-	}
-	if (r < 0)
-		return r;
-	else
-		return 1;
-}
-
-static struct cdrom_device_ops cm206_dops = {
-	.open			= cm206_open,
-	.release		= cm206_release,
-	.drive_status		= cm206_drive_status,
-	.media_changed		= cm206_media_changed,
-	.tray_move		= cm206_tray_move,
-	.lock_door		= cm206_lock_door,
-	.select_speed		= cm206_select_speed,
-	.get_last_session	= cm206_get_last_session,
-	.get_mcn		= cm206_get_upc,
-	.reset			= cm206_reset,
-	.audio_ioctl		= cm206_audio_ioctl,
-	.capability		= CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
-				  CDC_MULTI_SESSION | CDC_MEDIA_CHANGED |
-				  CDC_MCN | CDC_PLAY_AUDIO | CDC_SELECT_SPEED |
-				  CDC_DRIVE_STATUS,
-	.n_minors		= 1,
-};
-
-
-static struct cdrom_device_info cm206_info = {
-	.ops		= &cm206_dops,
-	.speed		= 2,
-	.capacity	= 1,
-	.name		= "cm206",
-};
-
-static int cm206_block_open(struct inode *inode, struct file *file)
-{
-	return cdrom_open(&cm206_info, inode, file);
-}
-
-static int cm206_block_release(struct inode *inode, struct file *file)
-{
-	return cdrom_release(&cm206_info, file);
-}
-
-static int cm206_block_ioctl(struct inode *inode, struct file *file,
-				unsigned cmd, unsigned long arg)
-{
-	switch (cmd) {
-#ifdef STATISTICS
-	case CM206CTL_GET_STAT:
-		if (arg >= NR_STATS)
-			return -EINVAL;
-		return cd->stats[arg];
-	case CM206CTL_GET_LAST_STAT:
-		if (arg >= NR_STATS)
-			return -EINVAL;
-		return cd->last_stat[arg];
-#endif
-	default:
-		break;
-	}
-
-	return cdrom_ioctl(file, &cm206_info, inode, cmd, arg);
-}
-
-static int cm206_block_media_changed(struct gendisk *disk)
-{
-	return cdrom_media_changed(&cm206_info);
-}
-
-static struct block_device_operations cm206_bdops =
-{
-	.owner		= THIS_MODULE,
-	.open		= cm206_block_open,
-	.release	= cm206_block_release,
-	.ioctl		= cm206_block_ioctl,
-	.media_changed	= cm206_block_media_changed,
-};
-
-static struct gendisk *cm206_gendisk;
-
-/* This function probes for the adapter card. It returns the base
-   address if it has found the adapter card. One can specify a base 
-   port to probe specifically, or 0 which means span all possible
-   bases. 
-
-   Linus says it is too dangerous to use writes for probing, so we
-   stick with pure reads for a while. Hope that 8 possible ranges,
-   request_region, 15 bits of one port and 6 of another make things
-   likely enough to accept the region on the first hit...
- */
-static int __init probe_base_port(int base)
-{
-	int b = 0x300, e = 0x370;	/* this is the range of start addresses */
-	volatile int fool, i;
-
-	if (base)
-		b = e = base;
-	for (base = b; base <= e; base += 0x10) {
-		if (!request_region(base, 0x10,"cm206"))
-			continue;
-		for (i = 0; i < 3; i++)
-			fool = inw(base + 2);	/* empty possibly uart_receive_buffer */
-		if ((inw(base + 6) & 0xffef) != 0x0001 ||	/* line_status */
-		    (inw(base) & 0xad00) != 0)	{ /* data status */
-		    	release_region(base,0x10);
-			continue;
-		}
-		return (base);
-	}
-	return 0;
-}
-
-#if !defined(MODULE) || defined(AUTO_PROBE_MODULE)
-/* Probe for irq# nr. If nr==0, probe for all possible irq's. */
-static int __init probe_irq(int nr)
-{
-	int irqs, irq;
-	outw(dc_normal | READ_AHEAD, r_data_control);	/* disable irq-generation */
-	sti();
-	irqs = probe_irq_on();
-	reset_cm260();		/* causes interrupt */
-	udelay(100);		/* wait for it */
-	irq = probe_irq_off(irqs);
-	outw(dc_normal | READ_AHEAD, r_data_control);	/* services interrupt */
-	if (nr && irq != nr && irq > 0)
-		return 0;	/* wrong interrupt happened */
-	else
-		return irq;
-}
-#endif
-
-int __init cm206_init(void)
-{
-	uch e = 0;
-	long int size = sizeof(struct cm206_struct);
-	struct gendisk *disk;
-
-	printk(KERN_INFO "cm206 cdrom driver " REVISION);
-	cm206_base = probe_base_port(auto_probe ? 0 : cm206_base);
-	if (!cm206_base) {
-		printk(" can't find adapter!\n");
-		return -EIO;
-	}
-	printk(" adapter at 0x%x", cm206_base);
-	cd = kmalloc(size, GFP_KERNEL);
-	if (!cd)
-               goto out_base;
-	/* Now we have found the adaptor card, try to reset it. As we have
-	 * found out earlier, this process generates an interrupt as well,
-	 * so we might just exploit that fact for irq probing! */
-#if !defined(MODULE) || defined(AUTO_PROBE_MODULE)
-	cm206_irq = probe_irq(auto_probe ? 0 : cm206_irq);
-	if (cm206_irq <= 0) {
-		printk("can't find IRQ!\n");
-		goto out_probe;
-	} else
-		printk(" IRQ %d found\n", cm206_irq);
-#else
-	cli();
-	reset_cm260();
-	/* Now, the problem here is that reset_cm260 can generate an
-	   interrupt. It seems that this can cause a kernel oops some time
-	   later. So we wait a while and `service' this interrupt. */
-	mdelay(1);
-	outw(dc_normal | READ_AHEAD, r_data_control);
-	sti();
-	printk(" using IRQ %d\n", cm206_irq);
-#endif
-	if (send_receive_polled(c_drive_configuration) !=
-	    c_drive_configuration) {
-		printk(KERN_INFO " drive not there\n");
-		goto out_probe;
-	}
-	e = send_receive_polled(c_gimme);
-	printk(KERN_INFO "Firmware revision %d", e & dcf_revision_code);
-	if (e & dcf_transfer_rate)
-		printk(" double");
-	else
-		printk(" single");
-	printk(" speed drive");
-	if (e & dcf_motorized_tray)
-		printk(", motorized tray");
-	if (request_irq(cm206_irq, cm206_interrupt, 0, "cm206", NULL)) {
-		printk("\nUnable to reserve IRQ---aborted\n");
-		goto out_probe;
-	}
-	printk(".\n");
-
-	if (register_blkdev(MAJOR_NR, "cm206"))
-		goto out_blkdev;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		goto out_disk;
-	disk->major = MAJOR_NR;
-	disk->first_minor = 0;
-	sprintf(disk->disk_name, "cm206cd");
-	disk->fops = &cm206_bdops;
-	disk->flags = GENHD_FL_CD;
-	cm206_gendisk = disk;
-	if (register_cdrom(&cm206_info) != 0) {
-		printk(KERN_INFO "Cannot register for cdrom %d!\n", MAJOR_NR);
-		goto out_cdrom;
-	}
-	cm206_queue = blk_init_queue(do_cm206_request, &cm206_lock);
-	if (!cm206_queue)
-		goto out_queue;
-		
-	blk_queue_hardsect_size(cm206_queue, 2048);
-	disk->queue = cm206_queue;
-	add_disk(disk);
-
-	memset(cd, 0, sizeof(*cd));	/* give'm some reasonable value */
-	cd->sector_last = -1;	/* flag no data buffered */
-	cd->adapter_last = -1;
-	init_timer(&cd->timer);
-	cd->timer.function = cm206_timeout;
-	cd->max_sectors = (inw(r_data_status) & ds_ram_size) ? 24 : 97;
-	printk(KERN_INFO "%d kB adapter memory available, "
-	       " %ld bytes kernel memory used.\n", cd->max_sectors * 2,
-	       size);
-	return 0;
-
-out_queue:
-	unregister_cdrom(&cm206_info);
-out_cdrom:
-	put_disk(disk);
-out_disk:
-	unregister_blkdev(MAJOR_NR, "cm206");
-out_blkdev:
-	free_irq(cm206_irq, NULL);
-out_probe:
-	kfree(cd);
-out_base:
-	release_region(cm206_base, 16);
-	return -EIO;
-}
-
-#ifdef MODULE
-
-
-static void __init parse_options(void)
-{
-	int i;
-	for (i = 0; i < 2; i++) {
-		if (0x300 <= cm206[i] && i <= 0x370
-		    && cm206[i] % 0x10 == 0) {
-			cm206_base = cm206[i];
-			auto_probe = 0;
-		} else if (3 <= cm206[i] && cm206[i] <= 15) {
-			cm206_irq = cm206[i];
-			auto_probe = 0;
-		}
-	}
-}
-
-static int __init __cm206_init(void)
-{
-	parse_options();
-#if !defined(AUTO_PROBE_MODULE)
-	auto_probe = 0;
-#endif
-	return cm206_init();
-}
-
-static void __exit cm206_exit(void)
-{
-	del_gendisk(cm206_gendisk);
-	put_disk(cm206_gendisk);
-	if (unregister_cdrom(&cm206_info)) {
-		printk("Can't unregister cdrom cm206\n");
-		return;
-	}
-	if (unregister_blkdev(MAJOR_NR, "cm206")) {
-		printk("Can't unregister major cm206\n");
-		return;
-	}
-	blk_cleanup_queue(cm206_queue);
-	free_irq(cm206_irq, NULL);
-	kfree(cd);
-	release_region(cm206_base, 16);
-	printk(KERN_INFO "cm206 removed\n");
-}
-
-module_init(__cm206_init);
-module_exit(cm206_exit);
-
-#else				/* !MODULE */
-
-/* This setup function accepts either `auto' or numbers in the range
- * 3--11 (for irq) or 0x300--0x370 (for base port) or both. */
-
-static int __init cm206_setup(char *s)
-{
-	int i, p[4];
-
-	(void) get_options(s, ARRAY_SIZE(p), p);
-
-	if (!strcmp(s, "auto"))
-		auto_probe = 1;
-	for (i = 1; i <= p[0]; i++) {
-		if (0x300 <= p[i] && i <= 0x370 && p[i] % 0x10 == 0) {
-			cm206_base = p[i];
-			auto_probe = 0;
-		} else if (3 <= p[i] && p[i] <= 15) {
-			cm206_irq = p[i];
-			auto_probe = 0;
-		}
-	}
-	return 1;
-}
-
-__setup("cm206=", cm206_setup);
-
-#endif				/* !MODULE */
-MODULE_ALIAS_BLOCKDEV_MAJOR(CM206_CDROM_MAJOR);
-