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 * $FreeBSD: stable/11/stand/i386/common/edd.h 281887 2015-04-23 14:22:20Z jhb $
28 */
29
30#ifndef	_EDD_H_
31#define	_EDD_H_
32
33/* Supported interfaces for "Check Extensions Present". */
34#define	EDD_INTERFACE_FIXED_DISK	0x01
35#define	EDD_INTERFACE_EJECT		0x02
36#define	EDD_INTERFACE_EDD		0x04
37
38struct edd_packet {
39	uint16_t	len;
40	uint16_t	count;
41	uint16_t	off;
42	uint16_t	seg;
43	uint64_t	lba;
44};
45
46struct edd_packet_v3 {
47	uint16_t	len;
48	uint16_t	count;
49	uint16_t	off;
50	uint16_t	seg;
51	uint64_t	lba;
52	uint64_t	phys_addr;
53};
54
55struct edd_params {
56	uint16_t	len;
57	uint16_t	flags;
58	uint32_t	cylinders;
59	uint32_t	heads;
60	uint32_t	sectors_per_track;
61	uint64_t	sectors;
62	uint16_t	sector_size;
63	uint16_t	edd_params_seg;
64	uint16_t	edd_params_off;
65} __packed;
66
67struct edd_device_path_v3 {
68	uint16_t	key;
69	uint8_t		len;
70	uint8_t		reserved[3];
71	char		host_bus[4];
72	char		interface[8];
73	uint64_t	interface_path;
74	uint64_t	device_path;
75	uint8_t		reserved2[1];
76	uint8_t		checksum;
77} __packed;
78
79struct edd_params_v3 {
80	struct edd_params params;
81	struct edd_device_path_v3 device_path;
82} __packed;
83
84struct edd_device_path_v4 {
85	uint16_t	key;
86	uint8_t		len;
87	uint8_t		reserved[3];
88	char		host_bus[4];
89	char		interface[8];
90	uint64_t	interface_path;
91	uint64_t	device_path[2];
92	uint8_t		reserved2[1];
93	uint8_t		checksum;
94} __packed;
95
96struct edd_params_v4 {
97	struct edd_params params;
98	struct edd_device_path_v4 device_path;
99} __packed;
100
101#define	EDD_FLAGS_DMA_BOUNDARY_HANDLING		0x0001
102#define	EDD_FLAGS_REMOVABLE_MEDIA		0x0002
103#define	EDD_FLAGS_WRITE_VERIFY			0x0004
104#define	EDD_FLAGS_MEDIA_CHANGE_NOTIFICATION	0x0008
105#define	EDD_FLAGS_LOCKABLE_MEDIA		0x0010
106#define	EDD_FLAGS_NO_MEDIA_PRESENT		0x0020
107
108#define	EDD_DEVICE_PATH_KEY	0xbedd
109
110#endif /* !_EDD_H_ */
111