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/*

 * linux/blkmem.h header file for Linux.

 *

 * Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,

 *                     The Silver Hammer Group, Ltd.

 *

 */

#ifndef _LINUX_BLKMEM_H

#define _LINUX_BLKMEM_H

#include <linux/ioctl.h>

/*

 * Structures and definitions for mag tape io control commands

 */

#define BMSERASE       1        /* erase sector containing address */

#define BMSGSIZE       2        /* get size of sector */

#define BMSGERASEVALUE 3        /* get value of bytes in erased sectors */

#define BMGETSIZES     4        /* get length of device in sectors */

#define BMGETSIZEB     5        /* get length of device in bytes */

#define BMPROGRAM      6        /* program entire arena in one go */

struct blkmem_program_t {

        unsigned long magic1;

        int     blocks;

        int     reset;

        unsigned long magic2;

        struct {

                unsigned char * data;

                unsigned long pos;

                unsigned long length;

                int magic3;

        }block[0];

};

#define BMPROGRAM_MAGIC_1 0x123abc32

#define BMPROGRAM_MAGIC_2 0x9C00C00F

#define BMPROGRAM_MAGIC_3 0x56408F26

#if 0

#define BMSSAUTOERASE  10       /* set auto-erase bits */

#endif

#endif /* _LINUX_BLKMEM_H */