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/*-
* Copyright (c) 1998,1999 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: atapi-tape.h,v 1.4 1999/06/25 09:03:07 sos Exp $
*/
/* MODE SENSE parameter header */
struct ast_header {
u_int8_t data_length; /* total length of data */
u_int8_t medium_type; /* medium type (if any) */
u_int8_t dsp; /* device specific parameter */
u_int8_t bdl; /* block Descriptor Length */
};
/* ATAPI tape drive Capabilities and Mechanical Status Page */
#define ATAPI_TAPE_CAP_PAGE 0x2a
struct ast_cappage {
u_int8_t page_code :6; /* page code == 0x2a */
u_int8_t reserved1_67 :2;
u_int8_t page_length; /* page Length == 0x12 */
u_int8_t reserved2;
u_int8_t reserved3;
u_int8_t readonly :1; /* read Only Mode */
u_int8_t reserved4_1234 :4;
u_int8_t reverse :1; /* supports reverse direction */
u_int8_t reserved4_67 :2;
u_int8_t reserved5_012 :3;
u_int8_t eformat :1; /* supports ERASE formatting */
u_int8_t reserved5_4 :1;
u_int8_t qfa :1; /* supports QFA formats */
u_int8_t reserved5_67 :2;
u_int8_t lock :1; /* supports locking media */
u_int8_t locked :1; /* the media is locked */
u_int8_t prevent :1; /* defaults to prevent state */
u_int8_t eject :1; /* supports eject */
u_int8_t disconnect :1; /* can break request > ctl */
u_int8_t reserved6_5 :1;
u_int8_t ecc :1; /* supports error correction */
u_int8_t compress :1; /* supports data compression */
u_int8_t reserved7_0 :1;
u_int8_t blk512 :1; /* supports 512b block size */
u_int8_t blk1024 :1; /* supports 1024b block size */
u_int8_t reserved7_3456 :4;
u_int8_t slowb :1; /* restricts byte count */
u_int16_t max_speed; /* supported speed in KBps */
u_int16_t max_defects; /* max stored defect entries */
u_int16_t ctl; /* continuous transfer limit */
u_int16_t speed; /* current Speed, in KBps */
u_int16_t buffer_size; /* buffer Size, in 512 bytes */
u_int8_t reserved18;
u_int8_t reserved19;
};
struct ast_softc {
struct atapi_softc *atp; /* controller structure */
int32_t lun; /* logical device unit */
int32_t flags; /* device state flags */
int32_t blksize; /* block size (512 | 1024) */
struct buf_queue_head buf_queue; /* queue of i/o requests */
struct atapi_params *param; /* drive parameters table */
struct ast_header header; /* MODE SENSE param header */
struct ast_cappage cap; /* capabilities page info */
struct devstat stats; /* devstat entry */
};
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