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Diffstat (limited to 'include/linux/ftape.h')
| -rw-r--r-- | include/linux/ftape.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/include/linux/ftape.h b/include/linux/ftape.h new file mode 100644 index 000000000000..c6b38d5b9186 --- /dev/null +++ b/include/linux/ftape.h @@ -0,0 +1,202 @@ +#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: /homes/cvs/ftape-stacked/include/linux/ftape.h,v $ + * $Revision: 1.17.6.4 $ + * $Date: 1997/11/25 01:52:54 $ + * + * 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 NR_ITEMS(x) (int)(sizeof(x)/ sizeof(*x)) + +#endif /* __KERNEL__ */ + +#endif |