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#ifndef _FTAPE_H

#define _FTAPE_H

/*

 * Copyright (C) 1994-1996 Bas Laarhoven,

 *           (C) 1996-1997 Claus-Justus Heine.

 This program is free software; you can redistribute it and/or modify

 it under the terms of the GNU General Public License as published by

 the Free Software Foundation; either version 2, or (at your option)

 any later version.

 This program is distributed in the hope that it will be useful,

 but WITHOUT ANY WARRANTY; without even the implied warranty of

 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License

 along with this program; see the file COPYING.  If not, write to

 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 * $Source: /home/fabio/w/shark/sharkcvs/CVSROOT/shark/drivers/linuxc26/include/linux/ftape.h,v $

 * $Revision: 1.1 $

 * $Date: 2004-01-28 15:25:21 $

 *

 *      This file contains global definitions, typedefs and macro's

 *      for the QIC-40/80/3010/3020 floppy-tape driver for Linux.

 */

#define FTAPE_VERSION "ftape v3.04d 25/11/97"

#ifdef __KERNEL__

#include <linux/interrupt.h>

#include <linux/mm.h>

#endif

#include <linux/types.h>

#include <linux/config.h>

#include <linux/mtio.h>

#define FT_SECTOR(x)            (x+1)   /* sector offset into real sector */

#define FT_SECTOR_SIZE          1024

#define FT_SECTORS_PER_SEGMENT    32

#define FT_ECC_SECTORS             3

#define FT_SEGMENT_SIZE         ((FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS) * FT_SECTOR_SIZE)

#define FT_BUFF_SIZE    (FT_SECTORS_PER_SEGMENT * FT_SECTOR_SIZE)

/*

 *   bits of the minor device number that define drive selection

 *   methods. Could be used one day to access multiple tape

 *   drives on the same controller.

 */

#define FTAPE_SEL_A     0

#define FTAPE_SEL_B     1

#define FTAPE_SEL_C     2

#define FTAPE_SEL_D     3

#define FTAPE_SEL_MASK     3

#define FTAPE_SEL(unit) ((unit) & FTAPE_SEL_MASK)

#define FTAPE_NO_REWIND 4       /* mask for minor nr */

/* the following two may be reported when MTIOCGET is requested ... */

typedef union {

        struct {

                __u8 error;

                __u8 command;

        } error;

        long space;

} ft_drive_error;

typedef union {

        struct {

                __u8 drive_status;

                __u8 drive_config;

                __u8 tape_status;

        } status;

        long space;

} ft_drive_status;

#ifdef __KERNEL__

#define FT_RQM_DELAY    12

#define FT_MILLISECOND  1

#define FT_SECOND       1000

#define FT_FOREVER      -1

#ifndef HZ

#error "HZ undefined."

#endif

#define FT_USPT         (1000000/HZ) /* microseconds per tick */

/* This defines the number of retries that the driver will allow

 * before giving up (and letting a higher level handle the error).

 */

#ifdef TESTING

#define FT_SOFT_RETRIES 1          /* number of low level retries */

#define FT_RETRIES_ON_ECC_ERROR 3  /* ecc error when correcting segment */

#else

#define FT_SOFT_RETRIES 6          /* number of low level retries (triple) */

#define FT_RETRIES_ON_ECC_ERROR 3  /* ecc error when correcting segment */

#endif

#ifndef THE_FTAPE_MAINTAINER

#define THE_FTAPE_MAINTAINER "the ftape maintainer"

#endif

/* Initialize missing configuration parameters.

 */

#ifndef CONFIG_FT_NR_BUFFERS

# define CONFIG_FT_NR_BUFFERS 3

#endif

#ifndef CONFIG_FT_FDC_THR

# define CONFIG_FT_FDC_THR 8

#endif

#ifndef CONFIG_FT_FDC_MAX_RATE

# define CONFIG_FT_FDC_MAX_RATE 2000

#endif

#ifndef CONFIG_FT_FDC_BASE

# define CONFIG_FT_FDC_BASE 0

#endif

#ifndef CONFIG_FT_FDC_IRQ

# define CONFIG_FT_FDC_IRQ  0

#endif

#ifndef CONFIG_FT_FDC_DMA

# define CONFIG_FT_FDC_DMA  0

#endif

/* Turn some booleans into numbers.

 */

#ifdef CONFIG_FT_PROBE_FC10

# undef CONFIG_FT_PROBE_FC10

# define CONFIG_FT_PROBE_FC10 1

#else

# define CONFIG_FT_PROBE_FC10 0

#endif

#ifdef CONFIG_FT_MACH2

# undef CONFIG_FT_MACH2

# define CONFIG_FT_MACH2 1

#else

# define CONFIG_FT_MACH2 0

#endif

/* Insert default settings

 */

#if CONFIG_FT_PROBE_FC10 == 1

# if CONFIG_FT_FDC_BASE == 0

#  undef  CONFIG_FT_FDC_BASE

#  define CONFIG_FT_FDC_BASE 0x180

# endif

# if CONFIG_FT_FDC_IRQ == 0

#  undef  CONFIG_FT_FDC_IRQ

#  define CONFIG_FT_FDC_IRQ 9

# endif

# if CONFIG_FT_FDC_DMA == 0

#  undef  CONFIG_FT_FDC_DMA

#  define CONFIG_FT_FDC_DMA 3

# endif

#elif CONFIG_FT_MACH2 == 1    /* CONFIG_FT_PROBE_FC10 == 1 */

# if CONFIG_FT_FDC_BASE == 0

#  undef  CONFIG_FT_FDC_BASE

#  define CONFIG_FT_FDC_BASE 0x1E0

# endif

# if CONFIG_FT_FDC_IRQ == 0

#  undef  CONFIG_FT_FDC_IRQ

#  define CONFIG_FT_FDC_IRQ 6

# endif

# if CONFIG_FT_FDC_DMA == 0

#  undef  CONFIG_FT_FDC_DMA

#  define CONFIG_FT_FDC_DMA 2

# endif

#elif CONFIG_FT_ALT_FDC == 1  /* CONFIG_FT_MACH2 */

# if CONFIG_FT_FDC_BASE == 0

#  undef  CONFIG_FT_FDC_BASE

#  define CONFIG_FT_FDC_BASE 0x370

# endif

# if CONFIG_FT_FDC_IRQ == 0

#  undef  CONFIG_FT_FDC_IRQ

#  define CONFIG_FT_FDC_IRQ 6

# endif

# if CONFIG_FT_FDC_DMA == 0

#  undef  CONFIG_FT_FDC_DMA

#  define CONFIG_FT_FDC_DMA 2

# endif

#else                          /* CONFIG_FT_ALT_FDC */

# if CONFIG_FT_FDC_BASE == 0

#  undef  CONFIG_FT_FDC_BASE

#  define CONFIG_FT_FDC_BASE 0x3f0

# endif

# if CONFIG_FT_FDC_IRQ == 0

#  undef  CONFIG_FT_FDC_IRQ

#  define CONFIG_FT_FDC_IRQ 6

# endif

# if CONFIG_FT_FDC_DMA == 0

#  undef  CONFIG_FT_FDC_DMA

#  define CONFIG_FT_FDC_DMA 2

# endif

#endif                         /* standard FDC */

/*      some useful macro's

 */

#define ABS(a)          ((a) < 0 ? -(a) : (a))

#define NR_ITEMS(x)     (int)(sizeof(x)/ sizeof(*x))

#endif  /* __KERNEL__ */

#endif