blob: 498384eee1b390e5753fabc0f6d9d3eb37d87cb6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
// MIT License, Copyright (c) 2020 Marvin Borner
#ifndef ACPI_H
#define ACPI_H
#include <def.h>
#define RSDP_MAGIC "RSD PTR "
#define RSDT_MAGIC "RSDT"
#define MADT_MAGIC "APIC"
#define FADT_MAGIC "FACP"
#define HPET_MAGIC "HPET"
struct address_structure {
u8 address_space_id;
u8 register_bit_width;
u8 register_bit_offset;
u8 reserved;
u32 phys; // Actually u64
};
struct sdt_header {
char signature[4];
u32 length;
u8 revision;
u8 checksum;
char oem_id[6];
char oem_table_id[8];
u32 oem_revision;
u32 creator_id;
u32 creator_revision;
};
struct sdp_header {
char signature[8];
u8 checksum;
char oem_id[6];
u8 revision;
};
struct rsdt {
struct sdt_header header;
u32 sdt_pointer[];
};
struct madt {
struct sdt_header header;
u32 local_address;
u32 flags;
};
struct fadt {
struct sdt_header header;
// TODO: FADT table (big!)
};
struct hpet {
struct sdt_header header;
u8 hardware_rev_id;
u8 comparator_count : 5;
u8 counter_size : 1;
u8 reserved : 1;
u8 legacy_replacement : 1;
u16 pci_vendor_id;
struct address_structure address;
u8 hpet_number;
u16 minimum_tick;
u8 page_protection;
};
struct hpet_registers {
struct {
u8 revision;
u8 comparator_count : 5;
u8 counter_size : 1;
u8 reserved : 1;
u8 legacy_replacement : 1;
u16 pci_vendor_id;
u32 tick_period;
} features;
u64 reserved1;
struct {
u8 enable : 1;
u8 legacy_replacement : 1;
u64 reserved : 62;
} config;
u64 reserved2;
struct {
u32 status; // For timer #n
u32 reserved;
} int_status;
u8 reserved3[200]; // Why?!
u32 counter;
u32 counter_high; // 0 due to 64 bit
u64 reserved4;
struct {
u8 reserved1 : 1;
u8 type : 1;
u8 enable : 1;
u8 periodic : 1;
u8 periodic_support : 1;
u8 size : 1; // 1 if 64 bit
u8 set_accumulator : 1;
u8 reserved2 : 1;
u8 force_32 : 1; // For 64 bit
u8 apic_routing : 5;
u8 fsb : 1;
u8 fsb_support : 1;
u16 reserved3;
u32 routing_capability;
} timer;
};
struct rsdp {
struct sdp_header header;
struct rsdt *rsdt;
};
struct madt *madt;
struct fadt *fadt;
struct hpet *hpet;
void acpi_install();
void hpet_install();
#endif
|
