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/* $OpenBSD: atapi_disk.h,v 1.1 1999/07/25 07:09:19 csapuntz Exp $ */
/* $NetBSD: atapi_disk.h,v 1.3 1998/02/13 08:28:21 enami Exp $ */
/*
* Copyright 1998
* Digital Equipment Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and conditions.
* Subject to these conditions, you may download, copy, install,
* use, modify and distribute this software in source and/or binary
* form. No title or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions as
* they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or logo of
* Digital Equipment Corporation. Neither the "Digital Equipment
* Corporation" name nor any trademark or logo of Digital Equipment
* Corporation may be used to endorse or promote products derived
* from this software without the prior written permission of
* Digital Equipment Corporation.
*
* 3) This software is provided "AS-IS" and any express or implied
* warranties, including but not limited to, any implied warranties
* of merchantability, fitness for a particular purpose, or
* non-infringement are disclaimed. In no event shall DIGITAL be
* liable for any damages whatsoever, and in particular, DIGITAL
* shall not be liable for special, indirect, consequential, or
* incidental damages or damages for lost profits, loss of
* revenue or loss of use, whether such damages arise in contract,
* negligence, tort, under statute, in equity, at law or otherwise,
* even if advised of the possibility of such damage.
*/
/*
* Definitions of commands and structures specific to ATAPI disks.
*
* Chris Demetriou, January 10, 1998.
*/
#define ATAPI_READ_FORMAT_CAPACITIES 0x23
struct atapi_read_format_capacities {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t reserved1[5];
u_int8_t length[2];
u_int8_t reserved2[3];
};
struct atapi_capacity_list_header {
u_int8_t reserved[3];
u_int8_t length;
};
struct atapi_capacity_descriptor {
u_int8_t nblks[4];
u_int8_t byte5;
u_int8_t blklen[3];
};
/* codes only valid in the current/maximum capacity descriptor */
#define ATAPI_CAP_DESC_CODE_MASK 0x3
/* reserved 0x0 */
#define ATAPI_CAP_DESC_CODE_UNFORMATTED 0x1
#define ATAPI_CAP_DESC_CODE_FORMATTED 0x2
#define ATAPI_CAP_DESC_CODE_NONE 0x3
#define ATAPI_CAP_DESC_SIZE(n) \
(sizeof(struct atapi_capacity_list_header) + \
(n) * sizeof(struct atapi_capacity_descriptor))
#define ATAPI_CAP_DESC_OFFSET_HEADER 0
#define ATAPI_CAP_DESC_OFFSET_DESC(n) ATAPI_CAP_DESC_SIZE(n)
struct atapi_flex_geometry_page {
u_int8_t pg_code; /* page code */
u_int8_t pg_length; /* page length */
u_int8_t xfr_rate[2]; /* transfer rate, Kb/sec */
u_int8_t nheads; /* number of heads */
u_int8_t ph_sec_tr; /* physical sectors per track */
u_int8_t blklen[2]; /* block length (bytes per sector) */
u_int8_t ncyl[2]; /* number of cylinders */
u_int8_t reserved1[18];
u_int8_t rot_rate[2]; /* medium rotation rate (RPM) */
};
#define ATAPI_FLEX_GEOMETRY_PAGE 0x05
union atapi_sd_pages {
u_int8_t page_code;
struct atapi_flex_geometry_page flex_geometry;
};
struct atapi_sd_mode_data {
struct atapi_mode_header header;
union atapi_sd_pages pages;
};
#define FLEXGEOMETRYPAGESIZE \
(sizeof(struct atapi_mode_header) + sizeof(struct atapi_flex_geometry_page))
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