[PATCH] Remove acsi.c
Jens Axboe [Tue, 19 Jun 2007 17:13:36 +0000 (19:13 +0200)]
Originally from Boaz Harrosh <bharrosh@panasas.com>

It hasn't been working in 2.5 or 2.6 ever, since it's still buffer_head
based.

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

drivers/block/Kconfig
drivers/block/Makefile
drivers/block/acsi.c [deleted file]

index b4c8319..d6ad7b3 100644 (file)
@@ -56,40 +56,9 @@ config AMIGA_Z2RAM
          To compile this driver as a module, choose M here: the
          module will be called z2ram.
 
-config ATARI_ACSI
-       tristate "Atari ACSI support"
-       depends on ATARI && BROKEN
-       ---help---
-         This enables support for the Atari ACSI interface. The driver
-         supports hard disks and CD-ROMs, which have 512-byte sectors, or can
-         be switched to that mode. Due to the ACSI command format, only disks
-         up to 1 GB are supported. Special support for certain ACSI to SCSI
-         adapters, which could relax that, isn't included yet. The ACSI
-         driver is also the basis for certain other drivers for devices
-         attached to the ACSI bus: Atari SLM laser printer, BioNet-100
-         Ethernet, and PAMsNet Ethernet. If you want to use one of these
-         devices, you need ACSI support, too.
-
-         To compile this driver as a module, choose M here: the
-         module will be called acsi.
-
-comment "Some devices (e.g. CD jukebox) support multiple LUNs"
-       depends on ATARI && ATARI_ACSI
-
-config ACSI_MULTI_LUN
-       bool "Probe all LUNs on each ACSI device"
-       depends on ATARI_ACSI
-       help
-         If you have a ACSI device that supports more than one LUN (Logical
-         Unit Number), e.g. a CD jukebox, you should say Y here so that all
-         will be found by the ACSI driver. An ACSI device with multiple LUNs
-         acts logically like multiple ACSI devices. The vast majority of ACSI
-         devices have only one LUN, and so most people can say N here and
-         should in fact do so, because it is safer.
-
 config ATARI_SLM
        tristate "Atari SLM laser printer support"
-       depends on ATARI && ATARI_ACSI!=n
+       depends on ATARI
        help
          If you have an Atari SLM laser printer, say Y to include support for
          it in the kernel. Otherwise, say N. This driver is also available as
index dd88e33..e5f98ac 100644 (file)
@@ -9,7 +9,6 @@ obj-$(CONFIG_MAC_FLOPPY)        += swim3.o
 obj-$(CONFIG_BLK_DEV_FD)       += floppy.o
 obj-$(CONFIG_AMIGA_FLOPPY)     += amiflop.o
 obj-$(CONFIG_ATARI_FLOPPY)     += ataflop.o
-obj-$(CONFIG_ATARI_ACSI)       += acsi.o
 obj-$(CONFIG_ATARI_SLM)                += acsi_slm.o
 obj-$(CONFIG_AMIGA_Z2RAM)      += z2ram.o
 obj-$(CONFIG_BLK_DEV_RAM)      += rd.o
diff --git a/drivers/block/acsi.c b/drivers/block/acsi.c
deleted file mode 100644 (file)
index e3d9152..0000000
+++ /dev/null
@@ -1,1825 +0,0 @@
-/*
- * acsi.c -- Device driver for Atari ACSI hard disks
- *
- * Copyright 1994 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
- *
- * Some parts are based on hd.c by Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
- *
- */
-
-/*
- * Still to in this file:
- *  - If a command ends with an error status (!= 0), the following
- *    REQUEST SENSE commands (4 to fill the ST-DMA FIFO) are done by
- *    polling the _IRQ signal (not interrupt-driven). This should be
- *    avoided in future because it takes up a non-neglectible time in
- *    the interrupt service routine while interrupts are disabled.
- *    Maybe a timer interrupt will get lost :-(
- */
-
-/*
- * General notes:
- *
- *  - All ACSI devices (disks, CD-ROMs, ...) use major number 28.
- *    Minors are organized like it is with SCSI: The upper 4 bits
- *    identify the device, the lower 4 bits the partition.
- *    The device numbers (the upper 4 bits) are given in the same
- *    order as the devices are found on the bus.
- *  - Up to 8 LUNs are supported for each target (if CONFIG_ACSI_MULTI_LUN
- *    is defined), but only a total of 16 devices (due to minor
- *    numbers...). Note that Atari allows only a maximum of 4 targets
- *    (i.e. controllers, not devices) on the ACSI bus!
- *  - A optimizing scheme similar to SCSI scatter-gather is implemented.
- *  - Removable media are supported. After a medium change to device
- *    is reinitialized (partition check etc.). Also, if the device
- *    knows the PREVENT/ALLOW MEDIUM REMOVAL command, the door should
- *    be locked and unlocked when mounting the first or unmounting the
- *    last filesystem on the device. The code is untested, because I
- *    don't have a removable hard disk.
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/timer.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/genhd.h>
-#include <linux/delay.h>
-#include <linux/mm.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <scsi/scsi.h> /* for SCSI_IOCTL_GET_IDLUN */
-#include <scsi/scsi_ioctl.h>
-#include <linux/hdreg.h> /* for HDIO_GETGEO */
-#include <linux/blkpg.h>
-#include <linux/buffer_head.h>
-#include <linux/blkdev.h>
-
-#include <asm/setup.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/atarihw.h>
-#include <asm/atariints.h>
-#include <asm/atari_acsi.h>
-#include <asm/atari_stdma.h>
-#include <asm/atari_stram.h>
-
-static void (*do_acsi)(void) = NULL;
-static struct request_queue *acsi_queue;
-#define QUEUE (acsi_queue)
-#define CURRENT elv_next_request(acsi_queue)
-
-#define DEBUG
-#undef DEBUG_DETECT
-#undef NO_WRITE
-
-#define MAX_ERRORS                     8       /* Max read/write errors/sector */
-#define MAX_LUN                                8       /* Max LUNs per target */
-#define MAX_DEV                                16
-
-#define ACSI_BUFFER_SIZE                       (16*1024) /* "normal" ACSI buffer size */
-#define ACSI_BUFFER_MINSIZE                    (2048)    /* min. buf size if ext. DMA */
-#define ACSI_BUFFER_SIZE_ORDER         2                 /* order size for above */
-#define ACSI_BUFFER_MINSIZE_ORDER      0                 /* order size for above */
-#define ACSI_BUFFER_SECTORS    (ACSI_BUFFER_SIZE/512)
-
-#define ACSI_BUFFER_ORDER \
-       (ATARIHW_PRESENT(EXTD_DMA) ? \
-        ACSI_BUFFER_MINSIZE_ORDER : \
-        ACSI_BUFFER_SIZE_ORDER)
-
-#define ACSI_TIMEOUT           (4*HZ)
-
-/* minimum delay between two commands */
-
-#define COMMAND_DELAY 500
-
-typedef enum {
-       NONE, HARDDISK, CDROM
-} ACSI_TYPE;
-
-struct acsi_info_struct {
-       ACSI_TYPE               type;                   /* type of device */
-       unsigned                target;                 /* target number */
-       unsigned                lun;                    /* LUN in target controller */
-       unsigned                removable : 1;  /* Flag for removable media */
-       unsigned                read_only : 1;  /* Flag for read only devices */
-       unsigned                old_atari_disk : 1; /* Is an old Atari disk       */
-       unsigned                changed : 1;    /* Medium has been changed */
-       unsigned long   size;                   /* #blocks */
-       int access_count;
-} acsi_info[MAX_DEV];
-
-/*
- *     SENSE KEYS
- */
-
-#define NO_SENSE               0x00
-#define RECOVERED_ERROR        0x01
-#define NOT_READY              0x02
-#define MEDIUM_ERROR           0x03
-#define HARDWARE_ERROR         0x04
-#define ILLEGAL_REQUEST        0x05
-#define UNIT_ATTENTION         0x06
-#define DATA_PROTECT           0x07
-#define BLANK_CHECK            0x08
-#define COPY_ABORTED           0x0a
-#define ABORTED_COMMAND        0x0b
-#define VOLUME_OVERFLOW        0x0d
-#define MISCOMPARE             0x0e
-
-
-/*
- *     DEVICE TYPES
- */
-
-#define TYPE_DISK      0x00
-#define TYPE_TAPE      0x01
-#define TYPE_WORM      0x04
-#define TYPE_ROM       0x05
-#define TYPE_MOD       0x07
-#define TYPE_NO_LUN    0x7f
-
-/* The data returned by MODE SENSE differ between the old Atari
- * hard disks and SCSI disks connected to ACSI. In the following, both
- * formats are defined and some macros to operate on them potably.
- */
-
-typedef struct {
-       unsigned long   dummy[2];
-       unsigned long   sector_size;
-       unsigned char   format_code;
-#define ATARI_SENSE_FORMAT_FIX 1       
-#define ATARI_SENSE_FORMAT_CHNG        2
-       unsigned char   cylinders_h;
-       unsigned char   cylinders_l;
-       unsigned char   heads;
-       unsigned char   reduced_h;
-       unsigned char   reduced_l;
-       unsigned char   precomp_h;
-       unsigned char   precomp_l;
-       unsigned char   landing_zone;
-       unsigned char   steprate;
-       unsigned char   type;
-#define ATARI_SENSE_TYPE_FIXCHNG_MASK          4
-#define ATARI_SENSE_TYPE_SOFTHARD_MASK         8
-#define ATARI_SENSE_TYPE_FIX                           4
-#define ATARI_SENSE_TYPE_CHNG                          0
-#define ATARI_SENSE_TYPE_SOFT                          0
-#define ATARI_SENSE_TYPE_HARD                          8
-       unsigned char   sectors;
-} ATARI_SENSE_DATA;
-
-#define ATARI_CAPACITY(sd) \
-       (((int)((sd).cylinders_h<<8)|(sd).cylinders_l) * \
-        (sd).heads * (sd).sectors)
-
-
-typedef struct {
-       unsigned char   dummy1;
-       unsigned char   medium_type;
-       unsigned char   dummy2;
-       unsigned char   descriptor_size;
-       unsigned long   block_count;
-       unsigned long   sector_size;
-       /* Page 0 data */
-       unsigned char   page_code;
-       unsigned char   page_size;
-       unsigned char   page_flags;
-       unsigned char   qualifier;
-} SCSI_SENSE_DATA;
-
-#define SCSI_CAPACITY(sd)      ((sd).block_count & 0xffffff)
-
-
-typedef union {
-       ATARI_SENSE_DATA        atari;
-       SCSI_SENSE_DATA         scsi;
-} SENSE_DATA;
-
-#define SENSE_TYPE_UNKNOWN     0
-#define SENSE_TYPE_ATARI       1
-#define SENSE_TYPE_SCSI                2
-
-#define SENSE_TYPE(sd)                                                                         \
-       (((sd).atari.dummy[0] == 8 &&                                                   \
-         ((sd).atari.format_code == 1 ||                                               \
-          (sd).atari.format_code == 2)) ? SENSE_TYPE_ATARI :   \
-        ((sd).scsi.dummy1 >= 11) ? SENSE_TYPE_SCSI :                   \
-        SENSE_TYPE_UNKNOWN)
-        
-#define CAPACITY(sd)                                                   \
-       (SENSE_TYPE(sd) == SENSE_TYPE_ATARI ?           \
-        ATARI_CAPACITY((sd).atari) :                           \
-        SCSI_CAPACITY((sd).scsi))
-
-#define SECTOR_SIZE(sd)                                                        \
-       (SENSE_TYPE(sd) == SENSE_TYPE_ATARI ?           \
-        (sd).atari.sector_size :                                       \
-        (sd).scsi.sector_size & 0xffffff)
-
-/* Default size if capacity cannot be determined (1 GByte) */
-#define        DEFAULT_SIZE    0x1fffff
-
-#define CARTRCH_STAT(aip,buf)                                          \
-       (aip->old_atari_disk ?                                          \
-        (((buf)[0] & 0x7f) == 0x28) :                                  \
-        ((((buf)[0] & 0x70) == 0x70) ?                                 \
-         (((buf)[2] & 0x0f) == 0x06) :                                 \
-         (((buf)[0] & 0x0f) == 0x06)))                                 \
-
-/* These two are also exported to other drivers that work on the ACSI bus and
- * need an ST-RAM buffer. */
-char                   *acsi_buffer;
-unsigned long  phys_acsi_buffer;
-
-static int NDevices;
-
-static int                             CurrentNReq;
-static int                             CurrentNSect;
-static char                            *CurrentBuffer;
-
-static DEFINE_SPINLOCK(acsi_lock);
-
-
-#define SET_TIMER()    mod_timer(&acsi_timer, jiffies + ACSI_TIMEOUT)
-#define CLEAR_TIMER()  del_timer(&acsi_timer)
-
-static unsigned long   STramMask;
-#define STRAM_ADDR(a)  (((a) & STramMask) == 0)
-
-
-
-/* ACSI commands */
-
-static char tur_cmd[6]        = { 0x00, 0, 0, 0, 0, 0 };
-static char modesense_cmd[6]  = { 0x1a, 0, 0, 0, 24, 0 };
-static char modeselect_cmd[6] = { 0x15, 0, 0, 0, 12, 0 };
-static char inquiry_cmd[6]    = { 0x12, 0, 0, 0,255, 0 };
-static char reqsense_cmd[6]   = { 0x03, 0, 0, 0, 4, 0 };
-static char read_cmd[6]       = { 0x08, 0, 0, 0, 0, 0 };
-static char write_cmd[6]      = { 0x0a, 0, 0, 0, 0, 0 };
-static char pa_med_rem_cmd[6] = { 0x1e, 0, 0, 0, 0, 0 };
-
-#define CMDSET_TARG_LUN(cmd,targ,lun)                  \
-    do {                                               \
-               cmd[0] = (cmd[0] & ~0xe0) | (targ)<<5;  \
-               cmd[1] = (cmd[1] & ~0xe0) | (lun)<<5;   \
-       } while(0)
-
-#define CMDSET_BLOCK(cmd,blk)                                          \
-    do {                                                                                       \
-               unsigned long __blk = (blk);                            \
-               cmd[3] = __blk; __blk >>= 8;                            \
-               cmd[2] = __blk; __blk >>= 8;                            \
-               cmd[1] = (cmd[1] & 0xe0) | (__blk & 0x1f);      \
-       } while(0)
-
-#define CMDSET_LEN(cmd,len)                                            \
-       do {                                                                            \
-               cmd[4] = (len);                                                 \
-       } while(0)
-
-/* ACSI errors (from REQUEST SENSE); There are two tables, one for the
- * old Atari disks and one for SCSI on ACSI disks.
- */
-
-struct acsi_error {
-       unsigned char   code;
-       const char              *text;
-} atari_acsi_errors[] = {
-       { 0x00, "No error (??)" },
-       { 0x01, "No index pulses" },
-       { 0x02, "Seek not complete" },
-       { 0x03, "Write fault" },
-       { 0x04, "Drive not ready" },
-       { 0x06, "No Track 00 signal" },
-       { 0x10, "ECC error in ID field" },
-       { 0x11, "Uncorrectable data error" },
-       { 0x12, "ID field address mark not found" },
-       { 0x13, "Data field address mark not found" },
-       { 0x14, "Record not found" },
-       { 0x15, "Seek error" },
-       { 0x18, "Data check in no retry mode" },
-       { 0x19, "ECC error during verify" },
-       { 0x1a, "Access to bad block" },
-       { 0x1c, "Unformatted or bad format" },
-       { 0x20, "Invalid command" },
-       { 0x21, "Invalid block address" },
-       { 0x23, "Volume overflow" },
-       { 0x24, "Invalid argument" },
-       { 0x25, "Invalid drive number" },
-       { 0x26, "Byte zero parity check" },
-       { 0x28, "Cartride changed" },
-       { 0x2c, "Error count overflow" },
-       { 0x30, "Controller selftest failed" }
-},
-
-       scsi_acsi_errors[] = {
-       { 0x00, "No error (??)" },
-       { 0x01, "Recovered error" },
-       { 0x02, "Drive not ready" },
-       { 0x03, "Uncorrectable medium error" },
-       { 0x04, "Hardware error" },
-       { 0x05, "Illegal request" },
-       { 0x06, "Unit attention (Reset or cartridge changed)" },
-       { 0x07, "Data protection" },
-       { 0x08, "Blank check" },
-       { 0x0b, "Aborted Command" },
-       { 0x0d, "Volume overflow" }
-};
-
-
-
-/***************************** Prototypes *****************************/
-
-static int acsicmd_dma( const char *cmd, char *buffer, int blocks, int
-                        rwflag, int enable);
-static int acsi_reqsense( char *buffer, int targ, int lun);
-static void acsi_print_error(const unsigned char *errblk, struct acsi_info_struct *aip);
-static irqreturn_t acsi_interrupt (int irq, void *data);
-static void unexpected_acsi_interrupt( void );
-static void bad_rw_intr( void );
-static void read_intr( void );
-static void write_intr( void);
-static void acsi_times_out( unsigned long dummy );
-static void copy_to_acsibuffer( void );
-static void copy_from_acsibuffer( void );
-static void do_end_requests( void );
-static void do_acsi_request( request_queue_t * );
-static void redo_acsi_request( void );
-static int acsi_ioctl( struct inode *inode, struct file *file, unsigned int
-                       cmd, unsigned long arg );
-static int acsi_open( struct inode * inode, struct file * filp );
-static int acsi_release( struct inode * inode, struct file * file );
-static void acsi_prevent_removal(struct acsi_info_struct *aip, int flag );
-static int acsi_change_blk_size( int target, int lun);
-static int acsi_mode_sense( int target, int lun, SENSE_DATA *sd );
-static int acsi_revalidate (struct gendisk *disk);
-
-/************************* End of Prototypes **************************/
-
-
-DEFINE_TIMER(acsi_timer, acsi_times_out, 0, 0);
-
-
-#ifdef CONFIG_ATARI_SLM
-
-extern int attach_slm( int target, int lun );
-extern int slm_init( void );
-
-#endif
-
-
-\f
-/***********************************************************************
- *
- *   ACSI primitives
- *
- **********************************************************************/
-
-
-/*
- * The following two functions wait for _IRQ to become Low or High,
- * resp., with a timeout. The 'timeout' parameter is in jiffies
- * (10ms).
- * If the functions are called with timer interrupts on (int level <
- * 6), the timeout is based on the 'jiffies' variable to provide exact
- * timeouts for device probing etc.
- * If interrupts are disabled, the number of tries is based on the
- * 'loops_per_jiffy' variable. A rough estimation is sufficient here...
- */
-
-#define INT_LEVEL                                                                                                      \
-       ({      unsigned __sr;                                                                                          \
-               __asm__ __volatile__ ( "movew   %/sr,%0" : "=dm" (__sr) );      \
-               (__sr >> 8) & 7;                                                                                        \
-       })
-
-int acsi_wait_for_IRQ( unsigned timeout )
-
-{
-       if (INT_LEVEL < 6) {
-               unsigned long maxjif = jiffies + timeout;
-               while (time_before(jiffies, maxjif))
-                       if (!(mfp.par_dt_reg & 0x20)) return( 1 );
-       }
-       else {
-               long tries = loops_per_jiffy / 8 * timeout;
-               while( --tries >= 0 )
-                       if (!(mfp.par_dt_reg & 0x20)) return( 1 );
-       }               
-       return( 0 ); /* timeout! */
-}
-
-
-int acsi_wait_for_noIRQ( unsigned timeout )
-
-{
-       if (INT_LEVEL < 6) {
-               unsigned long maxjif = jiffies + timeout;
-               while (time_before(jiffies, maxjif))
-                       if (mfp.par_dt_reg & 0x20) return( 1 );
-       }
-       else {
-               long tries = loops_per_jiffy * timeout / 8;
-               while( tries-- >= 0 )
-                       if (mfp.par_dt_reg & 0x20) return( 1 );
-       }               
-       return( 0 ); /* timeout! */
-}
-
-static struct timeval start_time;
-
-void
-acsi_delay_start(void)
-{
-       do_gettimeofday(&start_time);
-}
-
-/* wait from acsi_delay_start to now usec (<1E6) usec */
-
-void
-acsi_delay_end(long usec)
-{
-       struct timeval end_time;
-       long deltau,deltas;
-       do_gettimeofday(&end_time);
-       deltau=end_time.tv_usec - start_time.tv_usec;
-       deltas=end_time.tv_sec - start_time.tv_sec;
-       if (deltas > 1 || deltas < 0)
-               return;
-       if (deltas > 0)
-               deltau += 1000*1000;
-       if (deltau >= usec)
-               return;
-       udelay(usec-deltau);
-}
-
-/* acsicmd_dma() sends an ACSI command and sets up the DMA to transfer
- * 'blocks' blocks of 512 bytes from/to 'buffer'.
- * Because the _IRQ signal is used for handshaking the command bytes,
- * the ACSI interrupt has to be disabled in this function. If the end
- * of the operation should be signalled by a real interrupt, it has to be
- * reenabled afterwards.
- */
-
-static int acsicmd_dma( const char *cmd, char *buffer, int blocks, int rwflag, int enable)
-
-{      unsigned long   flags, paddr;
-       int                             i;
-
-#ifdef NO_WRITE
-       if (rwflag || *cmd == 0x0a) {
-               printk( "ACSI: Write commands disabled!\n" );
-               return( 0 );
-       }
-#endif
-       
-       rwflag = rwflag ? 0x100 : 0;
-       paddr = virt_to_phys( buffer );
-
-       acsi_delay_end(COMMAND_DELAY);
-       DISABLE_IRQ();
-
-       local_irq_save(flags);
-       /* Low on A1 */
-       dma_wd.dma_mode_status = 0x88 | rwflag;
-       MFPDELAY();
-
-       /* set DMA address */
-       dma_wd.dma_lo = (unsigned char)paddr;
-       paddr >>= 8;
-       MFPDELAY();
-       dma_wd.dma_md = (unsigned char)paddr;
-       paddr >>= 8;
-       MFPDELAY();
-       if (ATARIHW_PRESENT(EXTD_DMA))
-               st_dma_ext_dmahi = (unsigned short)paddr;
-       else
-               dma_wd.dma_hi = (unsigned char)paddr;
-       MFPDELAY();
-       local_irq_restore(flags);
-
-       /* send the command bytes except the last */
-       for( i = 0; i < 5; ++i ) {
-               DMA_LONG_WRITE( *cmd++, 0x8a | rwflag );
-               udelay(20);
-               if (!acsi_wait_for_IRQ( HZ/2 )) return( 0 ); /* timeout */
-       }
-
-       /* Clear FIFO and switch DMA to correct direction */  
-       dma_wd.dma_mode_status = 0x92 | (rwflag ^ 0x100);  
-       MFPDELAY();
-       dma_wd.dma_mode_status = 0x92 | rwflag;
-       MFPDELAY();
-
-       /* How many sectors for DMA */
-       dma_wd.fdc_acces_seccount = blocks;
-       MFPDELAY();
-       
-       /* send last command byte */
-       dma_wd.dma_mode_status = 0x8a | rwflag;
-       MFPDELAY();
-       DMA_LONG_WRITE( *cmd++, 0x0a | rwflag );
-       if (enable)
-               ENABLE_IRQ();
-       udelay(80);
-
-       return( 1 );
-}
-
-
-/*
- * acsicmd_nodma() sends an ACSI command that requires no DMA.
- */
-
-int acsicmd_nodma( const char *cmd, int enable)
-
-{      int     i;
-
-       acsi_delay_end(COMMAND_DELAY);
-       DISABLE_IRQ();
-
-       /* send first command byte */
-       dma_wd.dma_mode_status = 0x88;
-       MFPDELAY();
-       DMA_LONG_WRITE( *cmd++, 0x8a );
-       udelay(20);
-       if (!acsi_wait_for_IRQ( HZ/2 )) return( 0 ); /* timeout */
-
-       /* send the intermediate command bytes */
-       for( i = 0; i < 4; ++i ) {
-               DMA_LONG_WRITE( *cmd++, 0x8a );
-               udelay(20);
-               if (!acsi_wait_for_IRQ( HZ/2 )) return( 0 ); /* timeout */
-       }
-
-       /* send last command byte */
-       DMA_LONG_WRITE( *cmd++, 0x0a );
-       if (enable)
-               ENABLE_IRQ();
-       udelay(80);
-       
-       return( 1 );
-       /* Note that the ACSI interrupt is still disabled after this
-        * function. If you want to get the IRQ delivered, enable it manually!
-        */
-}
-
-
-static int acsi_reqsense( char *buffer, int targ, int lun)
-
-{
-       CMDSET_TARG_LUN( reqsense_cmd, targ, lun);
-       if (!acsicmd_dma( reqsense_cmd, buffer, 1, 0, 0 )) return( 0 );
-       if (!acsi_wait_for_IRQ( 10 )) return( 0 );
-       acsi_getstatus();
-       if (!acsicmd_nodma( reqsense_cmd, 0 )) return( 0 );
-       if (!acsi_wait_for_IRQ( 10 )) return( 0 );
-       acsi_getstatus();
-       if (!acsicmd_nodma( reqsense_cmd, 0 )) return( 0 );
-       if (!acsi_wait_for_IRQ( 10 )) return( 0 );
-       acsi_getstatus();
-       if (!acsicmd_nodma( reqsense_cmd, 0 )) return( 0 );
-       if (!acsi_wait_for_IRQ( 10 )) return( 0 );
-       acsi_getstatus();
-       dma_cache_maintenance( virt_to_phys(buffer), 16, 0 );
-       
-       return( 1 );
-}      
-
-
-/*
- * ACSI status phase: get the status byte from the bus
- *
- * I've seen several times that a 0xff status is read, propably due to
- * a timing error. In this case, the procedure is repeated after the
- * next _IRQ edge.
- */
-
-int acsi_getstatus( void )
-
-{      int     status;
-
-       DISABLE_IRQ();
-       for(;;) {
-               if (!acsi_wait_for_IRQ( 100 )) {
-                       acsi_delay_start();
-                       return( -1 );
-               }
-               dma_wd.dma_mode_status = 0x8a;
-               MFPDELAY();
-               status = dma_wd.fdc_acces_seccount;
-               if (status != 0xff) break;
-#ifdef DEBUG
-               printk("ACSI: skipping 0xff status byte\n" );
-#endif
-               udelay(40);
-               acsi_wait_for_noIRQ( 20 );
-       }
-       dma_wd.dma_mode_status = 0x80;
-       udelay(40);
-       acsi_wait_for_noIRQ( 20 );
-
-       acsi_delay_start();
-       return( status & 0x1f ); /* mask of the device# */
-}
-
-
-#if (defined(CONFIG_ATARI_SLM) || defined(CONFIG_ATARI_SLM_MODULE))
-
-/* Receive data in an extended status phase. Needed by SLM printer. */
-
-int acsi_extstatus( char *buffer, int cnt )
-
-{      int     status;
-
-       DISABLE_IRQ();
-       udelay(80);
-       while( cnt-- > 0 ) {
-               if (!acsi_wait_for_IRQ( 40 )) return( 0 );
-               dma_wd.dma_mode_status = 0x8a;
-               MFPDELAY();
-               status = dma_wd.fdc_acces_seccount;
-               MFPDELAY();
-               *buffer++ = status & 0xff;
-               udelay(40);
-       }
-       return( 1 );
-}
-
-
-/* Finish an extended status phase */
-
-void acsi_end_extstatus( void )
-
-{
-       dma_wd.dma_mode_status = 0x80;
-       udelay(40);
-       acsi_wait_for_noIRQ( 20 );
-       acsi_delay_start();
-}
-
-
-/* Send data in an extended command phase */
-
-int acsi_extcmd( unsigned char *buffer, int cnt )
-
-{
-       while( cnt-- > 0 ) {
-               DMA_LONG_WRITE( *buffer++, 0x8a );
-               udelay(20);
-               if (!acsi_wait_for_IRQ( HZ/2 )) return( 0 ); /* timeout */
-       }
-       return( 1 );
-}
-
-#endif
-
-
-static void acsi_print_error(const unsigned char *errblk, struct acsi_info_struct *aip)
-
-{      int atari_err, i, errcode;
-       struct acsi_error *arr;
-
-       atari_err = aip->old_atari_disk;
-       if (atari_err)
-               errcode = errblk[0] & 0x7f;
-       else
-               if ((errblk[0] & 0x70) == 0x70)
-                       errcode = errblk[2] & 0x0f;
-               else
-                       errcode = errblk[0] & 0x0f;
-       
-       printk( KERN_ERR "ACSI error 0x%02x", errcode );
-
-       if (errblk[0] & 0x80)
-               printk( " for sector %d",
-                               ((errblk[1] & 0x1f) << 16) |
-                               (errblk[2] << 8) | errblk[0] );
-
-       arr = atari_err ? atari_acsi_errors : scsi_acsi_errors;
-       i = atari_err ? sizeof(atari_acsi_errors)/sizeof(*atari_acsi_errors) :
-                           sizeof(scsi_acsi_errors)/sizeof(*scsi_acsi_errors);
-       
-       for( --i; i >= 0; --i )
-               if (arr[i].code == errcode) break;
-       if (i >= 0)
-               printk( ": %s\n", arr[i].text );
-}
-
-/*******************************************************************
- *
- * ACSI interrupt routine
- *   Test, if this is a ACSI interrupt and call the irq handler
- *   Otherwise ignore this interrupt.
- *
- *******************************************************************/
-
-static irqreturn_t acsi_interrupt(int irq, void *data )
-
-{      void (*acsi_irq_handler)(void) = do_acsi;
-
-       do_acsi = NULL;
-       CLEAR_TIMER();
-
-       if (!acsi_irq_handler)
-               acsi_irq_handler = unexpected_acsi_interrupt;
-       acsi_irq_handler();
-       return IRQ_HANDLED;
-}
-
-
-/******************************************************************
- *
- * The Interrupt handlers
- *
- *******************************************************************/
-
-
-static void unexpected_acsi_interrupt( void )
-
-{
-       printk( KERN_WARNING "Unexpected ACSI interrupt\n" );
-}
-
-
-/* This function is called in case of errors. Because we cannot reset
- * the ACSI bus or a single device, there is no other choice than
- * retrying several times :-(
- */
-
-static void bad_rw_intr( void )
-
-{
-       if (!CURRENT)
-               return;
-
-       if (++CURRENT->errors >= MAX_ERRORS)
-               end_request(CURRENT, 0);
-       /* Otherwise just retry */
-}
-
-
-static void read_intr( void )
-
-{      int             status;
-       
-       status = acsi_getstatus();
-       if (status != 0) {
-               struct gendisk *disk = CURRENT->rq_disk;
-               struct acsi_info_struct *aip = disk->private_data;
-               printk(KERN_ERR "%s: ", disk->disk_name);
-               if (!acsi_reqsense(acsi_buffer, aip->target, aip->lun))
-                       printk( "ACSI error and REQUEST SENSE failed (status=0x%02x)\n", status );
-               else {
-                       acsi_print_error(acsi_buffer, aip);
-                       if (CARTRCH_STAT(aip, acsi_buffer))
-                               aip->changed = 1;
-               }
-               ENABLE_IRQ();
-               bad_rw_intr();
-               redo_acsi_request();
-               return;
-       }
-
-       dma_cache_maintenance( virt_to_phys(CurrentBuffer), CurrentNSect*512, 0 );
-       if (CurrentBuffer == acsi_buffer)
-               copy_from_acsibuffer();
-
-       do_end_requests();
-       redo_acsi_request();
-}
-
-
-static void write_intr(void)
-
-{      int     status;
-
-       status = acsi_getstatus();
-       if (status != 0) {
-               struct gendisk *disk = CURRENT->rq_disk;
-               struct acsi_info_struct *aip = disk->private_data;
-               printk( KERN_ERR "%s: ", disk->disk_name);
-               if (!acsi_reqsense( acsi_buffer, aip->target, aip->lun))
-                       printk( "ACSI error and REQUEST SENSE failed (status=0x%02x)\n", status );
-               else {
-                       acsi_print_error(acsi_buffer, aip);
-                       if (CARTRCH_STAT(aip, acsi_buffer))
-                               aip->changed = 1;
-               }
-               bad_rw_intr();
-               redo_acsi_request();
-               return;
-       }
-
-       do_end_requests();
-       redo_acsi_request();
-}
-
-
-static void acsi_times_out( unsigned long dummy )
-
-{
-       DISABLE_IRQ();
-       if (!do_acsi) return;
-
-       do_acsi = NULL;
-       printk( KERN_ERR "ACSI timeout\n" );
-       if (!CURRENT)
-           return;
-       if (++CURRENT->errors >= MAX_ERRORS) {
-#ifdef DEBUG
-               printk( KERN_ERR "ACSI: too many errors.\n" );
-#endif
-               end_request(CURRENT, 0);
-       }
-
-       redo_acsi_request();
-}
-
-
-\f
-/***********************************************************************
- *
- *  Scatter-gather utility functions
- *
- ***********************************************************************/
-
-
-static void copy_to_acsibuffer( void )
-
-{      int                                     i;
-       char                            *src, *dst;
-       struct buffer_head      *bh;
-       
-       src = CURRENT->buffer;
-       dst = acsi_buffer;
-       bh = CURRENT->bh;
-
-       if (!bh)
-               memcpy( dst, src, CurrentNSect*512 );
-       else
-               for( i = 0; i < CurrentNReq; ++i ) {
-                       memcpy( dst, src, bh->b_size );
-                       dst += bh->b_size;
-                       if ((bh = bh->b_reqnext))
-                               src = bh->b_data;
-               }
-}
-
-
-static void copy_from_acsibuffer( void )
-
-{      int                                     i;
-       char                            *src, *dst;
-       struct buffer_head      *bh;
-       
-       dst = CURRENT->buffer;
-       src = acsi_buffer;
-       bh = CURRENT->bh;
-
-       if (!bh)
-               memcpy( dst, src, CurrentNSect*512 );
-       else
-               for( i = 0; i < CurrentNReq; ++i ) {
-                       memcpy( dst, src, bh->b_size );
-                       src += bh->b_size;
-                       if ((bh = bh->b_reqnext))
-                               dst = bh->b_data;
-               }
-}
-
-
-static void do_end_requests( void )
-
-{      int             i, n;
-
-       if (!CURRENT->bh) {
-               CURRENT->nr_sectors -= CurrentNSect;
-               CURRENT->current_nr_sectors -= CurrentNSect;
-               CURRENT->sector += CurrentNSect;
-               if (CURRENT->nr_sectors == 0)
-                       end_request(CURRENT, 1);
-       }
-       else {
-               for( i = 0; i < CurrentNReq; ++i ) {
-                       n = CURRENT->bh->b_size >> 9;
-                       CURRENT->nr_sectors -= n;
-                       CURRENT->current_nr_sectors -= n;
-                       CURRENT->sector += n;
-                       end_request(CURRENT, 1);
-               }
-       }
-}
-
-
-
-\f
-/***********************************************************************
- *
- *  do_acsi_request and friends
- *
- ***********************************************************************/
-
-static void do_acsi_request( request_queue_t * q )
-
-{
-       stdma_lock( acsi_interrupt, NULL );
-       redo_acsi_request();
-}
-
-
-static void redo_acsi_request( void )
-{
-       unsigned                        block, target, lun, nsect;
-       char                            *buffer;
-       unsigned long           pbuffer;
-       struct buffer_head      *bh;
-       struct gendisk *disk;
-       struct acsi_info_struct *aip;
-
-  repeat:
-       CLEAR_TIMER();
-
-       if (do_acsi)
-               return;
-
-       if (!CURRENT) {
-               do_acsi = NULL;
-               ENABLE_IRQ();
-               stdma_release();
-               return;
-       }
-
-       disk = CURRENT->rq_disk;
-       aip = disk->private_data;
-       if (CURRENT->bh) {
-               if (!CURRENT->bh && !buffer_locked(CURRENT->bh))
-                       panic("ACSI: block not locked");
-       }
-
-       block = CURRENT->sector;
-       if (block+CURRENT->nr_sectors >= get_capacity(disk)) {
-#ifdef DEBUG
-               printk( "%s: attempted access for blocks %d...%ld past end of device at block %ld.\n",
-                      disk->disk_name,
-                      block, block + CURRENT->nr_sectors - 1,
-                      get_capacity(disk));
-#endif
-               end_request(CURRENT, 0);
-               goto repeat;
-       }
-       if (aip->changed) {
-               printk( KERN_NOTICE "%s: request denied because cartridge has "
-                               "been changed.\n", disk->disk_name);
-               end_request(CURRENT, 0);
-               goto repeat;
-       }
-       
-       target = aip->target;
-       lun    = aip->lun;
-
-       /* Find out how many sectors should be transferred from/to
-        * consecutive buffers and thus can be done with a single command.
-        */
-       buffer      = CURRENT->buffer;
-       pbuffer     = virt_to_phys(buffer);
-       nsect       = CURRENT->current_nr_sectors;
-       CurrentNReq = 1;
-
-       if ((bh = CURRENT->bh) && bh != CURRENT->bhtail) {
-               if (!STRAM_ADDR(pbuffer)) {
-                       /* If transfer is done via the ACSI buffer anyway, we can
-                        * assemble as much bh's as fit in the buffer.
-                        */
-                       while( (bh = bh->b_reqnext) ) {
-                               if (nsect + (bh->b_size>>9) > ACSI_BUFFER_SECTORS) break;
-                               nsect += bh->b_size >> 9;
-                               ++CurrentNReq;
-                               if (bh == CURRENT->bhtail) break;
-                       }
-                       buffer = acsi_buffer;
-                       pbuffer = phys_acsi_buffer;
-               }
-               else {
-                       unsigned long pendadr, pnewadr;
-                       pendadr = pbuffer + nsect*512;
-                       while( (bh = bh->b_reqnext) ) {
-                               pnewadr = virt_to_phys(bh->b_data);
-                               if (!STRAM_ADDR(pnewadr) || pendadr != pnewadr) break;
-                               nsect += bh->b_size >> 9;
-                               pendadr = pnewadr + bh->b_size;
-                               ++CurrentNReq;
-                               if (bh == CURRENT->bhtail) break;
-                       }
-               }
-       }
-       else {
-               if (!STRAM_ADDR(pbuffer)) {
-                       buffer = acsi_buffer;
-                       pbuffer = phys_acsi_buffer;
-                       if (nsect > ACSI_BUFFER_SECTORS)
-                               nsect = ACSI_BUFFER_SECTORS;
-               }
-       }
-       CurrentBuffer = buffer;
-       CurrentNSect  = nsect;
-
-       if (rq_data_dir(CURRENT) == WRITE) {
-               CMDSET_TARG_LUN( write_cmd, target, lun );
-               CMDSET_BLOCK( write_cmd, block );
-               CMDSET_LEN( write_cmd, nsect );
-               if (buffer == acsi_buffer)
-                       copy_to_acsibuffer();
-               dma_cache_maintenance( pbuffer, nsect*512, 1 );
-               do_acsi = write_intr;
-               if (!acsicmd_dma( write_cmd, buffer, nsect, 1, 1)) {
-                       do_acsi = NULL;
-                       printk( KERN_ERR "ACSI (write): Timeout in command block\n" );
-                       bad_rw_intr();
-                       goto repeat;
-               }
-               SET_TIMER();
-               return;
-       }
-       if (rq_data_dir(CURRENT) == READ) {
-               CMDSET_TARG_LUN( read_cmd, target, lun );
-               CMDSET_BLOCK( read_cmd, block );
-               CMDSET_LEN( read_cmd, nsect );
-               do_acsi = read_intr;
-               if (!acsicmd_dma( read_cmd, buffer, nsect, 0, 1)) {
-                       do_acsi = NULL;
-                       printk( KERN_ERR "ACSI (read): Timeout in command block\n" );
-                       bad_rw_intr();
-                       goto repeat;
-               }
-               SET_TIMER();
-               return;
-       }
-       panic("unknown ACSI command");
-}
-
-
-\f
-/***********************************************************************
- *
- *  Misc functions: ioctl, open, release, check_change, ...
- *
- ***********************************************************************/
-
-static int acsi_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
-       struct acsi_info_struct *aip = bdev->bd_disk->private_data;
-
-       /*
-        * Just fake some geometry here, it's nonsense anyway
-        * To make it easy, use Adaptec's usual 64/32 mapping
-        */
-       geo->heads = 64;
-       geo->sectors = 32;
-       geo->cylinders = aip->size >> 11;
-       return 0;
-}
-
-static int acsi_ioctl( struct inode *inode, struct file *file,
-                                          unsigned int cmd, unsigned long arg )
-{
-       struct gendisk *disk = inode->i_bdev->bd_disk;
-       struct acsi_info_struct *aip = disk->private_data;
-       switch (cmd) {
-         case SCSI_IOCTL_GET_IDLUN:
-               /* SCSI compatible GET_IDLUN call to get target's ID and LUN number */
-               put_user( aip->target | (aip->lun << 8),
-                                 &((Scsi_Idlun *) arg)->dev_id );
-               put_user( 0, &((Scsi_Idlun *) arg)->host_unique_id );
-               return 0;
-         default:
-               return -EINVAL;
-       }
-}
-
-
-/*
- * Open a device, check for read-only and lock the medium if it is
- * removable.
- *
- * Changes by Martin Rogge, 9th Aug 1995:
- * Check whether check_disk_change (and therefore revalidate_acsidisk)
- * was successful. They fail when there is no medium in the drive.
- *
- * The problem of media being changed during an operation can be 
- * ignored because of the prevent_removal code.
- *
- * Added check for the validity of the device number.
- *
- */
-
-static int acsi_open( struct inode * inode, struct file * filp )
-{
-       struct gendisk *disk = inode->i_bdev->bd_disk;
-       struct acsi_info_struct *aip = disk->private_data;
-
-       if (aip->access_count == 0 && aip->removable) {
-#if 0
-               aip->changed = 1;       /* safety first */
-#endif
-               check_disk_change( inode->i_bdev );
-               if (aip->changed)       /* revalidate was not successful (no medium) */
-                       return -ENXIO;
-               acsi_prevent_removal(aip, 1);
-       }
-       aip->access_count++;
-
-       if (filp && filp->f_mode) {
-               check_disk_change( inode->i_bdev );
-               if (filp->f_mode & 2) {
-                       if (aip->read_only) {
-                               acsi_release( inode, filp );
-                               return -EROFS;
-                       }
-               }
-       }
-
-       return 0;
-}
-
-/*
- * Releasing a block device means we sync() it, so that it can safely
- * be forgotten about...
- */
-
-static int acsi_release( struct inode * inode, struct file * file )
-{
-       struct gendisk *disk = inode->i_bdev->bd_disk;
-       struct acsi_info_struct *aip = disk->private_data;
-       if (--aip->access_count == 0 && aip->removable)
-               acsi_prevent_removal(aip, 0);
-       return( 0 );
-}
-
-/*
- * Prevent or allow a media change for removable devices.
- */
-
-static void acsi_prevent_removal(struct acsi_info_struct *aip, int flag)
-{
-       stdma_lock( NULL, NULL );
-       
-       CMDSET_TARG_LUN(pa_med_rem_cmd, aip->target, aip->lun);
-       CMDSET_LEN( pa_med_rem_cmd, flag );
-       
-       if (acsicmd_nodma(pa_med_rem_cmd, 0) && acsi_wait_for_IRQ(3*HZ))
-               acsi_getstatus();
-       /* Do not report errors -- some devices may not know this command. */
-
-       ENABLE_IRQ();
-       stdma_release();
-}
-
-static int acsi_media_change(struct gendisk *disk)
-{
-       struct acsi_info_struct *aip = disk->private_data;
-
-       if (!aip->removable) 
-               return 0;
-
-       if (aip->changed)
-               /* We can be sure that the medium has been changed -- REQUEST
-                * SENSE has reported this earlier.
-                */
-               return 1;
-
-       /* If the flag isn't set, make a test by reading block 0.
-        * If errors happen, it seems to be better to say "changed"...
-        */
-       stdma_lock( NULL, NULL );
-       CMDSET_TARG_LUN(read_cmd, aip->target, aip->lun);
-       CMDSET_BLOCK( read_cmd, 0 );
-       CMDSET_LEN( read_cmd, 1 );
-       if (acsicmd_dma(read_cmd, acsi_buffer, 1, 0, 0) &&
-           acsi_wait_for_IRQ(3*HZ)) {
-               if (acsi_getstatus()) {
-                       if (acsi_reqsense(acsi_buffer, aip->target, aip->lun)) {
-                               if (CARTRCH_STAT(aip, acsi_buffer))
-                                       aip->changed = 1;
-                       }
-                       else {
-                               printk( KERN_ERR "%s: REQUEST SENSE failed in test for "
-                                      "medium change; assuming a change\n", disk->disk_name );
-                               aip->changed = 1;
-                       }
-               }
-       }
-       else {
-               printk( KERN_ERR "%s: Test for medium changed timed out; "
-                               "assuming a change\n", disk->disk_name);
-               aip->changed = 1;
-       }
-       ENABLE_IRQ();
-       stdma_release();
-
-       /* Now, after reading a block, the changed status is surely valid. */
-       return aip->changed;
-}
-
-
-static int acsi_change_blk_size( int target, int lun)
-
-{      int i;
-
-       for (i=0; i<12; i++)
-               acsi_buffer[i] = 0;
-
-       acsi_buffer[3] = 8;
-       acsi_buffer[10] = 2;
-       CMDSET_TARG_LUN( modeselect_cmd, target, lun);
-
-       if (!acsicmd_dma( modeselect_cmd, acsi_buffer, 1,1,0) ||
-               !acsi_wait_for_IRQ( 3*HZ ) ||
-               acsi_getstatus() != 0 ) {
-               return(0);
-       }
-       return(1);
-}
-
-
-static int acsi_mode_sense( int target, int lun, SENSE_DATA *sd )
-
-{
-       int page;
-
-       CMDSET_TARG_LUN( modesense_cmd, target, lun );
-       for (page=0; page<4; page++) {
-               modesense_cmd[2] = page;
-               if (!acsicmd_dma( modesense_cmd, acsi_buffer, 1, 0, 0 ) ||
-                   !acsi_wait_for_IRQ( 3*HZ ) ||
-                   acsi_getstatus())
-                       continue;
-
-               /* read twice to jump over the second 16-byte border! */
-               udelay(300);
-               if (acsi_wait_for_noIRQ( 20 ) &&
-                   acsicmd_nodma( modesense_cmd, 0 ) &&
-                   acsi_wait_for_IRQ( 3*HZ ) &&
-                   acsi_getstatus() == 0)
-                       break;
-       }
-       if (page == 4) {
-               return(0);
-       }
-
-       dma_cache_maintenance( phys_acsi_buffer, sizeof(SENSE_DATA), 0 );
-       *sd = *(SENSE_DATA *)acsi_buffer;
-
-       /* Validity check, depending on type of data */
-       
-       switch( SENSE_TYPE(*sd) ) {
-
-         case SENSE_TYPE_ATARI:
-               if (CAPACITY(*sd) == 0)
-                       goto invalid_sense;
-               break;
-
-         case SENSE_TYPE_SCSI:
-               if (sd->scsi.descriptor_size != 8)
-                       goto invalid_sense;
-               break;
-
-         case SENSE_TYPE_UNKNOWN:
-
-               printk( KERN_ERR "ACSI target %d, lun %d: Cannot interpret "
-                               "sense data\n", target, lun ); 
-               
-         invalid_sense:
-
-#ifdef DEBUG
-               {       int i;
-               printk( "Mode sense data for ACSI target %d, lun %d seem not valid:",
-                               target, lun );
-               for( i = 0; i < sizeof(SENSE_DATA); ++i )
-                       printk( "%02x ", (unsigned char)acsi_buffer[i] );
-               printk( "\n" );
-               }
-#endif
-               return( 0 );
-       }
-               
-       return( 1 );
-}
-
-
-
-/*******************************************************************
- *
- *  Initialization
- *
- ********************************************************************/
-
-
-extern struct block_device_operations acsi_fops;
-
-static struct gendisk *acsi_gendisk[MAX_DEV];
-
-#define MAX_SCSI_DEVICE_CODE 10
-
-static const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE] =
-{
- "Direct-Access    ",
- "Sequential-Access",
- "Printer          ",
- "Processor        ",
- "WORM             ",
- "CD-ROM           ",
- "Scanner          ",
- "Optical Device   ",
- "Medium Changer   ",
- "Communications   "
-};
-
-static void print_inquiry(unsigned char *data)
-{
-       int i;
-
-       printk(KERN_INFO "  Vendor: ");
-       for (i = 8; i < 16; i++)
-               {
-               if (data[i] >= 0x20 && i < data[4] + 5)
-                       printk("%c", data[i]);
-               else
-                       printk(" ");
-               }
-
-       printk("  Model: ");
-       for (i = 16; i < 32; i++)
-               {
-               if (data[i] >= 0x20 && i < data[4] + 5)
-                       printk("%c", data[i]);
-               else
-                       printk(" ");
-               }
-
-       printk("  Rev: ");
-       for (i = 32; i < 36; i++)
-               {
-               if (data[i] >= 0x20 && i < data[4] + 5)
-                       printk("%c", data[i]);
-               else
-                       printk(" ");
-               }
-
-       printk("\n");
-
-       i = data[0] & 0x1f;
-
-       printk(KERN_INFO "  Type:   %s ", (i < MAX_SCSI_DEVICE_CODE
-                                                                          ? scsi_device_types[i]
-                                                                          : "Unknown          "));
-       printk("                 ANSI SCSI revision: %02x", data[2] & 0x07);
-       if ((data[2] & 0x07) == 1 && (data[3] & 0x0f) == 1)
-         printk(" CCS\n");
-       else
-         printk("\n");
-}
-
-
-/* 
- * Changes by Martin Rogge, 9th Aug 1995: 
- * acsi_devinit has been taken out of acsi_geninit, because it needs 
- * to be called from revalidate_acsidisk. The result of request sense 
- * is now checked for DRIVE NOT READY.
- *
- * The structure *aip is only valid when acsi_devinit returns 
- * DEV_SUPPORTED. 
- *
- */
-       
-#define DEV_NONE       0
-#define DEV_UNKNOWN    1
-#define DEV_SUPPORTED  2
-#define DEV_SLM                3
-
-static int acsi_devinit(struct acsi_info_struct *aip)
-{
-       int status, got_inquiry;
-       SENSE_DATA sense;
-       unsigned char reqsense, extsense;
-
-       /*****************************************************************/
-       /* Do a TEST UNIT READY command to test the presence of a device */
-       /*****************************************************************/
-
-       CMDSET_TARG_LUN(tur_cmd, aip->target, aip->lun);
-       if (!acsicmd_nodma(tur_cmd, 0)) {
-               /* timed out -> no device here */
-#ifdef DEBUG_DETECT
-               printk("target %d lun %d: timeout\n", aip->target, aip->lun);
-#endif
-               return DEV_NONE;
-       }
-               
-       /*************************/
-       /* Read the ACSI status. */
-       /*************************/
-
-       status = acsi_getstatus();
-       if (status) {
-               if (status == 0x12) {
-                       /* The SLM printer should be the only device that
-                        * responds with the error code in the status byte. In
-                        * correct status bytes, bit 4 is never set.
-                        */
-                       printk( KERN_INFO "Detected SLM printer at id %d lun %d\n",
-                              aip->target, aip->lun);
-                       return DEV_SLM;
-               }
-               /* ignore CHECK CONDITION, since some devices send a
-                  UNIT ATTENTION */
-               if ((status & 0x1e) != 0x2) {
-#ifdef DEBUG_DETECT
-                       printk("target %d lun %d: status %d\n",
-                              aip->target, aip->lun, status);
-#endif
-                       return DEV_UNKNOWN;
-               }
-       }
-
-       /*******************************/
-       /* Do a REQUEST SENSE command. */
-       /*******************************/
-
-       if (!acsi_reqsense(acsi_buffer, aip->target, aip->lun)) {
-               printk( KERN_WARNING "acsi_reqsense failed\n");
-               acsi_buffer[0] = 0;
-               acsi_buffer[2] = UNIT_ATTENTION;
-       }
-       reqsense = acsi_buffer[0];
-       extsense = acsi_buffer[2] & 0xf;
-       if (status) {
-               if ((reqsense & 0x70) == 0x70) {        /* extended sense */
-                       if (extsense != UNIT_ATTENTION &&
-                           extsense != NOT_READY) {
-#ifdef DEBUG_DETECT
-                               printk("target %d lun %d: extended sense %d\n",
-                                      aip->target, aip->lun, extsense);
-#endif
-                               return DEV_UNKNOWN;
-                       }
-               }
-               else {
-                       if (reqsense & 0x7f) {
-#ifdef DEBUG_DETECT
-                               printk("target %d lun %d: sense %d\n",
-                                      aip->target, aip->lun, reqsense);
-#endif
-                               return DEV_UNKNOWN;
-                       }
-               }
-       }
-       else 
-               if (reqsense == 0x4) {  /* SH204 Bug workaround */
-#ifdef DEBUG_DETECT
-                       printk("target %d lun %d status=0 sense=4\n",
-                              aip->target, aip->lun);
-#endif
-                       return DEV_UNKNOWN;
-               }
-
-       /***********************************************************/
-       /* Do an INQUIRY command to get more infos on this device. */
-       /***********************************************************/
-
-       /* Assume default values */
-       aip->removable = 1;
-       aip->read_only = 0;
-       aip->old_atari_disk = 0;
-       aip->changed = (extsense == NOT_READY); /* medium inserted? */
-       aip->size = DEFAULT_SIZE;
-       got_inquiry = 0;
-       /* Fake inquiry result for old atari disks */
-       memcpy(acsi_buffer, "\000\000\001\000    Adaptec 40xx"
-              "                    ", 40);
-       CMDSET_TARG_LUN(inquiry_cmd, aip->target, aip->lun);
-       if (acsicmd_dma(inquiry_cmd, acsi_buffer, 1, 0, 0) &&
-           acsi_getstatus() == 0) {
-               acsicmd_nodma(inquiry_cmd, 0);
-               acsi_getstatus();
-               dma_cache_maintenance( phys_acsi_buffer, 256, 0 );
-               got_inquiry = 1;
-               aip->removable = !!(acsi_buffer[1] & 0x80);
-       }
-       if (aip->type == NONE)  /* only at boot time */
-               print_inquiry(acsi_buffer);
-       switch(acsi_buffer[0]) {
-         case TYPE_DISK:
-               aip->type = HARDDISK;
-               break;
-         case TYPE_ROM:
-               aip->type = CDROM;
-               aip->read_only = 1;
-               break;
-         default:
-               return DEV_UNKNOWN;
-       }
-       /****************************/
-       /* Do a MODE SENSE command. */
-       /****************************/
-
-       if (!acsi_mode_sense(aip->target, aip->lun, &sense)) {
-               printk( KERN_WARNING "No mode sense data.\n" );
-               return DEV_UNKNOWN;
-       }
-       if ((SECTOR_SIZE(sense) != 512) &&
-           ((aip->type != CDROM) ||
-            !acsi_change_blk_size(aip->target, aip->lun) ||
-            !acsi_mode_sense(aip->target, aip->lun, &sense) ||
-            (SECTOR_SIZE(sense) != 512))) {
-               printk( KERN_WARNING "Sector size != 512 not supported.\n" );
-               return DEV_UNKNOWN;
-       }
-       /* There are disks out there that claim to have 0 sectors... */
-       if (CAPACITY(sense))
-               aip->size = CAPACITY(sense);    /* else keep DEFAULT_SIZE */
-       if (!got_inquiry && SENSE_TYPE(sense) == SENSE_TYPE_ATARI) {
-               /* If INQUIRY failed and the sense data suggest an old
-                * Atari disk (SH20x, Megafile), the disk is not removable
-                */
-               aip->removable = 0;
-               aip->old_atari_disk = 1;
-       }
-       
-       /******************/
-       /* We've done it. */
-       /******************/
-       
-       return DEV_SUPPORTED;
-}
-
-EXPORT_SYMBOL(acsi_delay_start);
-EXPORT_SYMBOL(acsi_delay_end);
-EXPORT_SYMBOL(acsi_wait_for_IRQ);
-EXPORT_SYMBOL(acsi_wait_for_noIRQ);
-EXPORT_SYMBOL(acsicmd_nodma);
-EXPORT_SYMBOL(acsi_getstatus);
-EXPORT_SYMBOL(acsi_buffer);
-EXPORT_SYMBOL(phys_acsi_buffer);
-
-#ifdef CONFIG_ATARI_SLM_MODULE
-void acsi_attach_SLMs( int (*attach_func)( int, int ) );
-
-EXPORT_SYMBOL(acsi_extstatus);
-EXPORT_SYMBOL(acsi_end_extstatus);
-EXPORT_SYMBOL(acsi_extcmd);
-EXPORT_SYMBOL(acsi_attach_SLMs);
-
-/* to remember IDs of SLM devices, SLM module is loaded later
- * (index is target#, contents is lun#, -1 means "no SLM") */
-int SLM_devices[8];
-#endif
-
-static struct block_device_operations acsi_fops = {
-       .owner          = THIS_MODULE,
-       .open           = acsi_open,
-       .release        = acsi_release,
-       .ioctl          = acsi_ioctl,
-       .getgeo         = acsi_getgeo,
-       .media_changed  = acsi_media_change,
-       .revalidate_disk= acsi_revalidate,
-};
-
-#ifdef CONFIG_ATARI_SLM_MODULE
-/* call attach_slm() for each device that is a printer; needed for init of SLM
- * driver as a module, since it's not yet present if acsi.c is inited and thus
- * the bus gets scanned. */
-void acsi_attach_SLMs( int (*attach_func)( int, int ) )
-{
-       int i, n = 0;
-
-       for( i = 0; i < 8; ++i )
-               if (SLM_devices[i] >= 0)
-                       n += (*attach_func)( i, SLM_devices[i] );
-       printk( KERN_INFO "Found %d SLM printer(s) total.\n", n );
-}
-#endif /* CONFIG_ATARI_SLM_MODULE */
-
-
-int acsi_init( void )
-{
-       int err = 0;
-       int i, target, lun;
-       struct acsi_info_struct *aip;
-#ifdef CONFIG_ATARI_SLM
-       int n_slm = 0;
-#endif
-       if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ACSI))
-               return 0;
-       if (register_blkdev(ACSI_MAJOR, "ad")) {
-               err = -EBUSY;
-               goto out1;
-       }
-       if (!(acsi_buffer =
-                 (char *)atari_stram_alloc(ACSI_BUFFER_SIZE, "acsi"))) {
-               err = -ENOMEM;
-               printk( KERN_ERR "Unable to get ACSI ST-Ram buffer.\n" );
-               goto out2;
-       }
-       phys_acsi_buffer = virt_to_phys( acsi_buffer );
-       STramMask = ATARIHW_PRESENT(EXTD_DMA) ? 0x00000000 : 0xff000000;
-       
-       acsi_queue = blk_init_queue(do_acsi_request, &acsi_lock);
-       if (!acsi_queue) {
-               err = -ENOMEM;
-               goto out2a;
-       }
-#ifdef CONFIG_ATARI_SLM
-       err = slm_init();
-#endif
-       if (err)
-               goto out3;
-
-       printk( KERN_INFO "Probing ACSI devices:\n" );
-       NDevices = 0;
-#ifdef CONFIG_ATARI_SLM_MODULE
-       for( i = 0; i < 8; ++i )
-               SLM_devices[i] = -1;
-#endif
-       stdma_lock(NULL, NULL);
-
-       for (target = 0; target < 8 && NDevices < MAX_DEV; ++target) {
-               lun = 0;
-               do {
-                       aip = &acsi_info[NDevices];
-                       aip->type = NONE;
-                       aip->target = target;
-                       aip->lun = lun;
-                       i = acsi_devinit(aip);
-                       switch (i) {
-                         case DEV_SUPPORTED:
-                               printk( KERN_INFO "Detected ");
-                               switch (aip->type) {
-                                 case HARDDISK:
-                                       printk("disk");
-                                       break;
-                                 case CDROM:
-                                       printk("cdrom");
-                                       break;
-                                 default:
-                               }
-                               printk(" ad%c at id %d lun %d ",
-                                      'a' + NDevices, target, lun);
-                               if (aip->removable) 
-                                       printk("(removable) ");
-                               if (aip->read_only) 
-                                       printk("(read-only) ");
-                               if (aip->size == DEFAULT_SIZE)
-                                       printk(" unkown size, using default ");
-                               printk("%ld MByte\n",
-                                      (aip->size*512+1024*1024/2)/(1024*1024));
-                               NDevices++;
-                               break;
-                         case DEV_SLM:
-#ifdef CONFIG_ATARI_SLM
-                               n_slm += attach_slm( target, lun );
-                               break;
-#endif
-#ifdef CONFIG_ATARI_SLM_MODULE
-                               SLM_devices[target] = lun;
-                               break;
-#endif
-                               /* neither of the above: fall through to unknown device */
-                         case DEV_UNKNOWN:
-                               printk( KERN_INFO "Detected unsupported device at "
-                                               "id %d lun %d\n", target, lun);
-                               break;
-                       }
-               }
-#ifdef CONFIG_ACSI_MULTI_LUN
-               while (i != DEV_NONE && ++lun < MAX_LUN);
-#else
-               while (0);
-#endif
-       }
-
-       /* reenable interrupt */
-       ENABLE_IRQ();
-       stdma_release();
-
-#ifndef CONFIG_ATARI_SLM
-       printk( KERN_INFO "Found %d ACSI device(s) total.\n", NDevices );
-#else
-       printk( KERN_INFO "Found %d ACSI device(s) and %d SLM printer(s) total.\n",
-                       NDevices, n_slm );
-#endif
-       err = -ENOMEM;
-       for( i = 0; i < NDevices; ++i ) {
-               acsi_gendisk[i] = alloc_disk(16);
-               if (!acsi_gendisk[i])
-                       goto out4;
-       }
-
-       for( i = 0; i < NDevices; ++i ) {
-               struct gendisk *disk = acsi_gendisk[i];
-               sprintf(disk->disk_name, "ad%c", 'a'+i);
-               aip = &acsi_info[NDevices];
-               disk->major = ACSI_MAJOR;
-               disk->first_minor = i << 4;
-               if (acsi_info[i].type != HARDDISK)
-                       disk->minors = 1;
-               disk->fops = &acsi_fops;
-               disk->private_data = &acsi_info[i];
-               set_capacity(disk, acsi_info[i].size);
-               disk->queue = acsi_queue;
-               add_disk(disk);
-       }
-       return 0;
-out4:
-       while (i--)
-               put_disk(acsi_gendisk[i]);
-out3:
-       blk_cleanup_queue(acsi_queue);
-out2a:
-       atari_stram_free( acsi_buffer );
-out2:
-       unregister_blkdev( ACSI_MAJOR, "ad" );
-out1:
-       return err;
-}
-
-
-#ifdef MODULE
-
-MODULE_LICENSE("GPL");
-
-int init_module(void)
-{
-       int err;
-
-       if ((err = acsi_init()))
-               return( err );
-       printk( KERN_INFO "ACSI driver loaded as module.\n");
-       return( 0 );
-}
-
-void cleanup_module(void)
-{
-       int i;
-       del_timer( &acsi_timer );
-       blk_cleanup_queue(acsi_queue);
-       atari_stram_free( acsi_buffer );
-
-       if (unregister_blkdev( ACSI_MAJOR, "ad" ) != 0)
-               printk( KERN_ERR "acsi: cleanup_module failed\n");
-
-       for (i = 0; i < NDevices; i++) {
-               del_gendisk(acsi_gendisk[i]);
-               put_disk(acsi_gendisk[i]);
-       }
-}
-#endif
-
-/*
- * This routine is called to flush all partitions and partition tables
- * for a changed scsi disk, and then re-read the new partition table.
- * If we are revalidating a disk because of a media change, then we
- * enter with usage == 0.  If we are using an ioctl, we automatically have
- * usage == 1 (we need an open channel to use an ioctl :-), so this
- * is our limit.
- *
- * Changes by Martin Rogge, 9th Aug 1995: 
- * got cd-roms to work by calling acsi_devinit. There are only two problems:
- * First, if there is no medium inserted, the status will remain "changed".
- * That is no problem at all, but our design of three-valued logic (medium
- * changed, medium not changed, no medium inserted).
- * Secondly the check could fail completely and the drive could deliver
- * nonsensical data, which could mess up the acsi_info[] structure. In
- * that case we try to make the entry safe.
- *
- */
-
-static int acsi_revalidate(struct gendisk *disk)
-{
-       struct acsi_info_struct *aip = disk->private_data;
-       stdma_lock( NULL, NULL );
-       if (acsi_devinit(aip) != DEV_SUPPORTED) {
-               printk( KERN_ERR "ACSI: revalidate failed for target %d lun %d\n",
-                      aip->target, aip->lun);
-               aip->size = 0;
-               aip->read_only = 1;
-               aip->removable = 1;
-               aip->changed = 1; /* next acsi_open will try again... */
-       }
-
-       ENABLE_IRQ();
-       stdma_release();
-       set_capacity(disk, aip->size);
-       return 0;
-}