File: /usr/include/linux/acpi.h
1 /*
2 * acpi.h - ACPI driver interface
3 *
4 * Copyright (C) 1999 Andrew Henroid
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef _LINUX_ACPI_H
22 #define _LINUX_ACPI_H
23
24 #include <linux/types.h>
25 #include <linux/ioctl.h>
26 #ifdef __KERNEL__
27 #include <linux/sched.h>
28 #include <linux/wait.h>
29 #endif /* __KERNEL__ */
30
31 typedef int acpi_sstate_t;
32
33 /*
34 * Device states
35 */
36 enum
37 {
38 ACPI_D0, /* fully-on */
39 ACPI_D1, /* partial-on */
40 ACPI_D2, /* partial-on */
41 ACPI_D3, /* fully-off */
42 };
43
44 typedef int acpi_dstate_t;
45
46 /* RSDP location */
47 #define ACPI_BIOS_ROM_BASE (0x0e0000)
48 #define ACPI_BIOS_ROM_END (0x100000)
49
50 /* Table signatures */
51 #define ACPI_RSDP1_SIG 0x20445352 /* 'RSD ' */
52 #define ACPI_RSDP2_SIG 0x20525450 /* 'PTR ' */
53 #define ACPI_RSDT_SIG 0x54445352 /* 'RSDT' */
54 #define ACPI_FADT_SIG 0x50434146 /* 'FACP' */
55 #define ACPI_DSDT_SIG 0x54445344 /* 'DSDT' */
56 #define ACPI_FACS_SIG 0x53434146 /* 'FACS' */
57
58 #define ACPI_SIG_LEN 4
59 #define ACPI_FADT_SIGNATURE "FACP"
60
61 /* PM1_STS/EN flags */
62 #define ACPI_TMR 0x0001
63 #define ACPI_BM 0x0010
64 #define ACPI_GBL 0x0020
65 #define ACPI_PWRBTN 0x0100
66 #define ACPI_SLPBTN 0x0200
67 #define ACPI_RTC 0x0400
68 #define ACPI_WAK 0x8000
69
70 /* PM1_CNT flags */
71 #define ACPI_SCI_EN 0x0001
72 #define ACPI_BM_RLD 0x0002
73 #define ACPI_GBL_RLS 0x0004
74 #define ACPI_SLP_TYP0 0x0400
75 #define ACPI_SLP_TYP1 0x0800
76 #define ACPI_SLP_TYP2 0x1000
77 #define ACPI_SLP_EN 0x2000
78
79 #define ACPI_SLP_TYP_MASK 0x1c00
80 #define ACPI_SLP_TYP_SHIFT 10
81
82 /* PM_TMR masks */
83 #define ACPI_TMR_VAL_EXT 0x00000100
84 #define ACPI_TMR_MASK 0x00ffffff
85 #define ACPI_TMR_HZ 3579545 /* 3.58 MHz */
86 #define ACPI_TMR_KHZ (ACPI_TMR_HZ / 1000)
87
88 #define ACPI_MICROSEC_TO_TMR_TICKS(val) \
89 (((val) * (ACPI_TMR_KHZ)) / 1000)
90
91 /* PM2_CNT flags */
92 #define ACPI_ARB_DIS 0x01
93
94 /* FADT flags */
95 #define ACPI_WBINVD 0x00000001
96 #define ACPI_WBINVD_FLUSH 0x00000002
97 #define ACPI_PROC_C1 0x00000004
98 #define ACPI_P_LVL2_UP 0x00000008
99 #define ACPI_PWR_BUTTON 0x00000010
100 #define ACPI_SLP_BUTTON 0x00000020
101 #define ACPI_FIX_RTC 0x00000040
102 #define ACPI_RTC_64 0x00000080
103 #define ACPI_TMR_VAL_EXT 0x00000100
104 #define ACPI_DCK_CAP 0x00000200
105
106 /* FADT BOOT_ARCH flags */
107 #define FADT_BOOT_ARCH_LEGACY_DEVICES 0x0001
108 #define FADT_BOOT_ARCH_KBD_CONTROLLER 0x0002
109
110 /* FACS flags */
111 #define ACPI_S4BIOS 0x00000001
112
113 /* processor block offsets */
114 #define ACPI_P_CNT 0x00000000
115 #define ACPI_P_LVL2 0x00000004
116 #define ACPI_P_LVL3 0x00000005
117
118 /* C-state latencies (microseconds) */
119 #define ACPI_MAX_P_LVL2_LAT 100
120 #define ACPI_MAX_P_LVL3_LAT 1000
121 #define ACPI_INFINITE_LAT (~0UL)
122
123 /*
124 * Sysctl declarations
125 */
126
127 enum
128 {
129 CTL_ACPI = 10
130 };
131
132 enum
133 {
134 ACPI_FADT = 1,
135 ACPI_DSDT,
136 ACPI_PM1_ENABLE,
137 ACPI_GPE_ENABLE,
138 ACPI_GPE_LEVEL,
139 ACPI_EVENT,
140 ACPI_P_BLK,
141 ACPI_ENTER_LVL2_LAT,
142 ACPI_ENTER_LVL3_LAT,
143 ACPI_P_LVL2_LAT,
144 ACPI_P_LVL3_LAT,
145 ACPI_C1_TIME,
146 ACPI_C2_TIME,
147 ACPI_C3_TIME,
148 ACPI_C1_COUNT,
149 ACPI_C2_COUNT,
150 ACPI_C3_COUNT,
151 ACPI_S0_SLP_TYP,
152 ACPI_S1_SLP_TYP,
153 ACPI_S5_SLP_TYP,
154 ACPI_SLEEP,
155 ACPI_FACS,
156 ACPI_XSDT,
157 ACPI_PMTIMER,
158 ACPI_BATTERY,
159 };
160
161 #define ACPI_SLP_TYP_DISABLED (~0UL)
162
163 #endif /* _LINUX_ACPI_H */
164