202 lines
5.2 KiB
C
202 lines
5.2 KiB
C
#ifndef _FTAPE_H
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#define _FTAPE_H
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/*
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* Copyright (C) 1994-1996 Bas Laarhoven,
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* (C) 1996-1997 Claus-Justus Heine.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* $Source: /homes/cvs/ftape-stacked/include/linux/ftape.h,v $
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* $Revision: 1.17.6.4 $
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* $Date: 1997/11/25 01:52:54 $
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*
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* This file contains global definitions, typedefs and macro's
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* for the QIC-40/80/3010/3020 floppy-tape driver for Linux.
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*/
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#define FTAPE_VERSION "ftape v3.04d 25/11/97"
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#ifdef __KERNEL__
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#include <linux/interrupt.h>
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#include <linux/mm.h>
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#endif
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#include <linux/types.h>
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#include <linux/mtio.h>
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#define FT_SECTOR(x) (x+1) /* sector offset into real sector */
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#define FT_SECTOR_SIZE 1024
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#define FT_SECTORS_PER_SEGMENT 32
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#define FT_ECC_SECTORS 3
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#define FT_SEGMENT_SIZE ((FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS) * FT_SECTOR_SIZE)
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#define FT_BUFF_SIZE (FT_SECTORS_PER_SEGMENT * FT_SECTOR_SIZE)
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/*
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* bits of the minor device number that define drive selection
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* methods. Could be used one day to access multiple tape
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* drives on the same controller.
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*/
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#define FTAPE_SEL_A 0
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#define FTAPE_SEL_B 1
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#define FTAPE_SEL_C 2
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#define FTAPE_SEL_D 3
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#define FTAPE_SEL_MASK 3
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#define FTAPE_SEL(unit) ((unit) & FTAPE_SEL_MASK)
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#define FTAPE_NO_REWIND 4 /* mask for minor nr */
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/* the following two may be reported when MTIOCGET is requested ... */
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typedef union {
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struct {
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__u8 error;
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__u8 command;
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} error;
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long space;
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} ft_drive_error;
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typedef union {
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struct {
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__u8 drive_status;
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__u8 drive_config;
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__u8 tape_status;
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} status;
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long space;
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} ft_drive_status;
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#ifdef __KERNEL__
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#define FT_RQM_DELAY 12
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#define FT_MILLISECOND 1
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#define FT_SECOND 1000
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#define FT_FOREVER -1
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#ifndef HZ
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#error "HZ undefined."
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#endif
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#define FT_USPT (1000000/HZ) /* microseconds per tick */
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/* This defines the number of retries that the driver will allow
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* before giving up (and letting a higher level handle the error).
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*/
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#ifdef TESTING
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#define FT_SOFT_RETRIES 1 /* number of low level retries */
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#define FT_RETRIES_ON_ECC_ERROR 3 /* ecc error when correcting segment */
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#else
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#define FT_SOFT_RETRIES 6 /* number of low level retries (triple) */
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#define FT_RETRIES_ON_ECC_ERROR 3 /* ecc error when correcting segment */
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#endif
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#ifndef THE_FTAPE_MAINTAINER
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#define THE_FTAPE_MAINTAINER "the ftape maintainer"
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#endif
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/* Initialize missing configuration parameters.
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*/
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#ifndef CONFIG_FT_NR_BUFFERS
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# define CONFIG_FT_NR_BUFFERS 3
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#endif
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#ifndef CONFIG_FT_FDC_THR
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# define CONFIG_FT_FDC_THR 8
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#endif
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#ifndef CONFIG_FT_FDC_MAX_RATE
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# define CONFIG_FT_FDC_MAX_RATE 2000
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#endif
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#ifndef CONFIG_FT_FDC_BASE
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# define CONFIG_FT_FDC_BASE 0
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#endif
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#ifndef CONFIG_FT_FDC_IRQ
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# define CONFIG_FT_FDC_IRQ 0
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#endif
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#ifndef CONFIG_FT_FDC_DMA
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# define CONFIG_FT_FDC_DMA 0
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#endif
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/* Turn some booleans into numbers.
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*/
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#ifdef CONFIG_FT_PROBE_FC10
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# undef CONFIG_FT_PROBE_FC10
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# define CONFIG_FT_PROBE_FC10 1
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#else
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# define CONFIG_FT_PROBE_FC10 0
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#endif
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#ifdef CONFIG_FT_MACH2
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# undef CONFIG_FT_MACH2
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# define CONFIG_FT_MACH2 1
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#else
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# define CONFIG_FT_MACH2 0
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#endif
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/* Insert default settings
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*/
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#if CONFIG_FT_PROBE_FC10 == 1
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# if CONFIG_FT_FDC_BASE == 0
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# undef CONFIG_FT_FDC_BASE
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# define CONFIG_FT_FDC_BASE 0x180
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# endif
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# if CONFIG_FT_FDC_IRQ == 0
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# undef CONFIG_FT_FDC_IRQ
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# define CONFIG_FT_FDC_IRQ 9
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# endif
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# if CONFIG_FT_FDC_DMA == 0
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# undef CONFIG_FT_FDC_DMA
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# define CONFIG_FT_FDC_DMA 3
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# endif
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#elif CONFIG_FT_MACH2 == 1 /* CONFIG_FT_PROBE_FC10 == 1 */
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# if CONFIG_FT_FDC_BASE == 0
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# undef CONFIG_FT_FDC_BASE
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# define CONFIG_FT_FDC_BASE 0x1E0
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# endif
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# if CONFIG_FT_FDC_IRQ == 0
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# undef CONFIG_FT_FDC_IRQ
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# define CONFIG_FT_FDC_IRQ 6
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# endif
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# if CONFIG_FT_FDC_DMA == 0
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# undef CONFIG_FT_FDC_DMA
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# define CONFIG_FT_FDC_DMA 2
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# endif
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#elif defined(CONFIG_FT_ALT_FDC) /* CONFIG_FT_MACH2 */
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# if CONFIG_FT_FDC_BASE == 0
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# undef CONFIG_FT_FDC_BASE
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# define CONFIG_FT_FDC_BASE 0x370
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# endif
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# if CONFIG_FT_FDC_IRQ == 0
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# undef CONFIG_FT_FDC_IRQ
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# define CONFIG_FT_FDC_IRQ 6
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# endif
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# if CONFIG_FT_FDC_DMA == 0
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# undef CONFIG_FT_FDC_DMA
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# define CONFIG_FT_FDC_DMA 2
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# endif
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#else /* CONFIG_FT_ALT_FDC */
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# if CONFIG_FT_FDC_BASE == 0
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# undef CONFIG_FT_FDC_BASE
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# define CONFIG_FT_FDC_BASE 0x3f0
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# endif
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# if CONFIG_FT_FDC_IRQ == 0
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# undef CONFIG_FT_FDC_IRQ
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# define CONFIG_FT_FDC_IRQ 6
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# endif
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# if CONFIG_FT_FDC_DMA == 0
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# undef CONFIG_FT_FDC_DMA
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# define CONFIG_FT_FDC_DMA 2
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# endif
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#endif /* standard FDC */
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/* some useful macro's
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*/
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#define NR_ITEMS(x) (int)(sizeof(x)/ sizeof(*x))
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#endif /* __KERNEL__ */
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#endif
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