1/* $NetBSD: efi.h,v 1.1 2016/01/28 01:09:56 christos Exp $ */
2
3/*-
4 * Copyright (c) 2004 Marcel Moolenaar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31/* This file is mainly ia64/include/efi.h with little modifications. */
32
33#ifndef _X86_EFI_H_
34#define _X86_EFI_H_
35
36#include <sys/uuid.h>
37
38#define EFI_PAGE_SHIFT 12
39#define EFI_PAGE_SIZE (1 << EFI_PAGE_SHIFT)
40#define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1)
41
42extern const struct uuid EFI_UUID_ACPI20;
43extern const struct uuid EFI_UUID_ACPI10;
44
45#define EFI_TABLE_SAL \
46 {0xeb9d2d32,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}}
47
48enum efi_reset {
49 EFI_RESET_COLD,
50 EFI_RESET_WARM
51};
52
53typedef uint16_t efi_char;
54typedef unsigned long efi_status;
55
56
57struct efi_cfgtbl {
58 struct uuid ct_uuid;
59 uint64_t ct_data;
60};
61struct efi_md {
62 uint32_t md_type;
63#define EFI_MD_TYPE_NULL 0
64#define EFI_MD_TYPE_CODE 1 /* Loader text. */
65#define EFI_MD_TYPE_DATA 2 /* Loader data. */
66#define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */
67#define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */
68#define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */
69#define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */
70#define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */
71#define EFI_MD_TYPE_BAD 8 /* Bad memory */
72#define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */
73#define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */
74#define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */
75#define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */
76#define EFI_MD_TYPE_PALCODE 13 /* PAL */
77 uint32_t __pad;
78 uint64_t md_phys;
79 void *md_virt;
80 uint64_t md_pages;
81 uint64_t md_attr;
82#define EFI_MD_ATTR_UC 0x0000000000000001UL
83#define EFI_MD_ATTR_WC 0x0000000000000002UL
84#define EFI_MD_ATTR_WT 0x0000000000000004UL
85#define EFI_MD_ATTR_WB 0x0000000000000008UL
86#define EFI_MD_ATTR_UCE 0x0000000000000010UL
87#define EFI_MD_ATTR_WP 0x0000000000001000UL
88#define EFI_MD_ATTR_RP 0x0000000000002000UL
89#define EFI_MD_ATTR_XP 0x0000000000004000UL
90#define EFI_MD_ATTR_RT 0x8000000000000000UL
91};
92
93struct efi_tm {
94 uint16_t tm_year; /* 1998 - 20XX */
95 uint8_t tm_mon; /* 1 - 12 */
96 uint8_t tm_mday; /* 1 - 31 */
97 uint8_t tm_hour; /* 0 - 23 */
98 uint8_t tm_min; /* 0 - 59 */
99 uint8_t tm_sec; /* 0 - 59 */
100 uint8_t __pad1;
101 uint32_t tm_nsec; /* 0 - 999,999,999 */
102 int16_t tm_tz; /* -1440 to 1440 or 2047 */
103 uint8_t tm_dst;
104 uint8_t __pad2;
105};
106
107struct efi_tmcap {
108 uint32_t tc_res; /* 1e-6 parts per million */
109 uint32_t tc_prec; /* hertz */
110 uint8_t tc_stz; /* Set clears sub-second time */
111};
112
113struct efi_tblhdr {
114 uint64_t th_sig;
115 uint32_t th_rev;
116 uint32_t th_hdrsz;
117 uint32_t th_crc32;
118 uint32_t __res;
119};
120
121struct efi_rt {
122 struct efi_tblhdr rt_hdr;
123 efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *);
124 efi_status (*rt_settime)(struct efi_tm *);
125 efi_status (*rt_getwaketime)(uint8_t *, uint8_t *,
126 struct efi_tm *);
127 efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *);
128 efi_status (*rt_setvirtual)(u_long, u_long, uint32_t,
129 struct efi_md *);
130 efi_status (*rt_cvtptr)(u_long, void **);
131 efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *,
132 u_long *, void *);
133 efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *);
134 efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t,
135 u_long, void *);
136 efi_status (*rt_gethicnt)(uint32_t *);
137 efi_status (*rt_reset)(enum efi_reset, efi_status, u_long,
138 efi_char *);
139};
140
141struct efi_systbl {
142 struct efi_tblhdr st_hdr;
143#define EFI_SYSTBL_SIG 0x5453595320494249UL
144 efi_char *st_fwvendor;
145 uint32_t st_fwrev;
146 uint32_t __pad;
147 void *st_cin;
148 void *st_cinif;
149 void *st_cout;
150 void *st_coutif;
151 void *st_cerr;
152 void *st_cerrif;
153 uint64_t st_rt;
154 void *st_bs;
155 u_long st_entries;
156 uint64_t st_cfgtbl;
157};
158
159bool efi_probe(void);
160paddr_t efi_getsystblpa(void);
161struct efi_systbl *efi_getsystbl(void);
162paddr_t efi_getcfgtblpa(const struct uuid*);
163void *efi_getcfgtbl(const struct uuid*);
164/*
165void efi_boot_finish(void);
166int efi_boot_minimal(uint64_t);
167void *efi_get_table(struct uuid *);
168void efi_get_time(struct efi_tm *);
169struct efi_md *efi_md_first(void);
170struct efi_md *efi_md_next(struct efi_md *);
171void efi_reset_system(void);
172efi_status efi_set_time(struct efi_tm *);
173*/
174
175#endif /* _X86_EFI_H_ */
176