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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