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/*-
* Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
* 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.
*
* 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.
*
* $FreeBSD$
*/
/* ATAPI tape drive Capabilities and Mechanical Status Page */
struct ast_cappage {
/* mode page data header */
u_int8_t data_length; /* total length of data */
u_int8_t medium_type; /* medium type (if any) */
u_int8_t reserved :4;
u_int8_t mode :3; /* buffering mode */
u_int8_t write_protect :1; /* media is writeprotected */
u_int8_t blk_desc_len; /* block Descriptor Length */
/* capabilities page */
u_int8_t page_code :6;
#define ATAPI_TAPE_CAP_PAGE 0x2a
u_int8_t reserved0_6 :1;
u_int8_t ps :1; /* parameters saveable */
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 blk32k :1; /* supports 32kb block size */
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;
};
/* ATAPI OnStream ADR data transfer mode page (ADR unique) */
struct ast_transferpage {
/* mode page data 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 blk_desc_len; /* block Descriptor Length */
/* data transfer page */
u_int8_t page_code :6;
#define ATAPI_TAPE_TRANSFER_PAGE 0x30
u_int8_t reserved0_6 :1;
u_int8_t ps :1; /* parameters saveable */
u_int8_t page_length; /* page Length == 0x02 */
u_int8_t reserved2;
u_int8_t read32k :1; /* 32k blk size (data only) */
u_int8_t read32k5 :1; /* 32.5k blk size (data&AUX) */
u_int8_t reserved3_23 :2;
u_int8_t write32k :1; /* 32k blk size (data only) */
u_int8_t write32k5 :1; /* 32.5k blk size (data&AUX) */
u_int8_t reserved3_6 :1;
u_int8_t streaming :1; /* streaming mode enable */
};
/* ATAPI OnStream ADR vendor identification mode page (ADR unique) */
struct ast_identifypage {
/* mode page data 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 blk_desc_len; /* block Descriptor Length */
/* data transfer page */
u_int8_t page_code :6;
#define ATAPI_TAPE_IDENTIFY_PAGE 0x36
u_int8_t reserved0_6 :1;
u_int8_t ps :1; /* parameters saveable */
u_int8_t page_length; /* page Length == 0x06 */
u_int8_t ident[4]; /* host id string */
u_int8_t reserved6;
u_int8_t reserved7;
};
/* ATAPI read position structure */
struct ast_readposition {
u_int8_t reserved0_05 :6;
u_int8_t eop :1; /* end of partition */
u_int8_t bop :1; /* beginning of partition */
u_int8_t reserved1;
u_int8_t reserved2;
u_int8_t reserved3;
u_int32_t host; /* frame address in buffer */
u_int32_t tape; /* frame address on tape */
u_int8_t reserved12;
u_int8_t reserved13;
u_int8_t reserved14;
u_int8_t blks_in_buf; /* blocks in buffer */
u_int8_t reserved16;
u_int8_t reserved17;
u_int8_t reserved18;
u_int8_t reserved19;
};
struct ast_softc {
int flags; /* device state flags */
#define F_CTL_WARN 0x0001 /* warned about CTL wrong? */
#define F_WRITEPROTECT 0x0002 /* media is writeprotected */
#define F_DATA_WRITTEN 0x0004 /* data has been written */
#define F_FM_WRITTEN 0x0008 /* filemark has been written */
#define F_ONSTREAM 0x0100 /* OnStream ADR device */
int blksize; /* block size (512 | 1024) */
struct atapi_params *param; /* drive parameters table */
struct ast_cappage cap; /* capabilities page info */
struct devstat *stats; /* devstat entry */
struct cdev *dev1, *dev2; /* device place holders */
};
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