1/*-
2 * Copyright (c) 2011 Hudson River Trading LLC
3 * Written by: John H. Baldwin <jhb@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef	_EDD_H_
29#define	_EDD_H_
30
31/* Supported interfaces for "Check Extensions Present". */
32#define	EDD_INTERFACE_FIXED_DISK	0x01
33#define	EDD_INTERFACE_EJECT		0x02
34#define	EDD_INTERFACE_EDD		0x04
35
36struct edd_packet {
37	uint16_t	len;
38	uint16_t	count;
39	uint16_t	off;
40	uint16_t	seg;
41	uint64_t	lba;
42};
43
44struct edd_packet_v3 {
45	uint16_t	len;
46	uint16_t	count;
47	uint16_t	off;
48	uint16_t	seg;
49	uint64_t	lba;
50	uint64_t	phys_addr;
51};
52
53struct edd_params {
54	uint16_t	len;
55	uint16_t	flags;
56	uint32_t	cylinders;
57	uint32_t	heads;
58	uint32_t	sectors_per_track;
59	uint64_t	sectors;
60	uint16_t	sector_size;
61	uint16_t	edd_params_seg;
62	uint16_t	edd_params_off;
63} __packed;
64
65struct edd_device_path_v3 {
66	uint16_t	key;
67	uint8_t		len;
68	uint8_t		reserved[3];
69	char		host_bus[4];
70	char		interface[8];
71	uint64_t	interface_path;
72	uint64_t	device_path[2];
73	uint8_t		reserved2[1];
74	uint8_t		checksum;
75} __packed;
76
77struct edd_params_v3 {
78	struct edd_params params;
79	struct edd_device_path_v3 device_path;
80} __packed;
81
82#define	EDD_FLAGS_DMA_BOUNDARY_HANDLING		0x0001
83#define	EDD_FLAGS_REMOVABLE_MEDIA		0x0002
84#define	EDD_FLAGS_WRITE_VERIFY			0x0004
85#define	EDD_FLAGS_MEDIA_CHANGE_NOTIFICATION	0x0008
86#define	EDD_FLAGS_LOCKABLE_MEDIA		0x0010
87#define	EDD_FLAGS_NO_MEDIA_PRESENT		0x0020
88
89#define	EDD_DEVICE_PATH_KEY	0xbedd
90
91#define	EDD_QUERY_MAGIC		0x55aa
92#define	EDD_INSTALLED		0xaa55
93
94#endif /* !_EDD_H_ */
95