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1/******************************************************************************
2 *
3 * Name: achware.h -- hardware specific interfaces
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2005, R. Byron Moore
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACHWARE_H__
45#define __ACHWARE_H__
46
47
48/* PM Timer ticks per second (HZ) */
49
50#define PM_TIMER_FREQUENCY 3579545
51
52/* Values for the _SST reserved method */
53
54#define ACPI_SST_INDICATOR_OFF 0
55#define ACPI_SST_WORKING 1
56#define ACPI_SST_WAKING 2
57#define ACPI_SST_SLEEPING 3
58#define ACPI_SST_SLEEP_CONTEXT 4
59
60
61/* Prototypes */
62
63
64/*
65 * hwacpi - high level functions
66 */
67acpi_status
68acpi_hw_initialize (
69 void);
70
71acpi_status
72acpi_hw_set_mode (
73 u32 mode);
74
75u32
76acpi_hw_get_mode (
77 void);
78
79
80/*
81 * hwregs - ACPI Register I/O
82 */
83struct acpi_bit_register_info *
84acpi_hw_get_bit_register_info (
85 u32 register_id);
86
87acpi_status
88acpi_hw_register_read (
89 u8 use_lock,
90 u32 register_id,
91 u32 *return_value);
92
93acpi_status
94acpi_hw_register_write (
95 u8 use_lock,
96 u32 register_id,
97 u32 value);
98
99acpi_status
100acpi_hw_low_level_read (
101 u32 width,
102 u32 *value,
103 struct acpi_generic_address *reg);
104
105acpi_status
106acpi_hw_low_level_write (
107 u32 width,
108 u32 value,
109 struct acpi_generic_address *reg);
110
111acpi_status
112acpi_hw_clear_acpi_status (
113 u32 flags);
114
115
116/*
117 * hwgpe - GPE support
118 */
119acpi_status
120acpi_hw_write_gpe_enable_reg (
121 struct acpi_gpe_event_info *gpe_event_info);
122
123acpi_status
124acpi_hw_disable_gpe_block (
125 struct acpi_gpe_xrupt_info *gpe_xrupt_info,
126 struct acpi_gpe_block_info *gpe_block);
127
128acpi_status
129acpi_hw_clear_gpe (
130 struct acpi_gpe_event_info *gpe_event_info);
131
132acpi_status
133acpi_hw_clear_gpe_block (
134 struct acpi_gpe_xrupt_info *gpe_xrupt_info,
135 struct acpi_gpe_block_info *gpe_block);
136
137#ifdef ACPI_FUTURE_USAGE
138acpi_status
139acpi_hw_get_gpe_status (
140 struct acpi_gpe_event_info *gpe_event_info,
141 acpi_event_status *event_status);
142#endif /* ACPI_FUTURE_USAGE */
143
144acpi_status
145acpi_hw_disable_all_gpes (
146 u32 flags);
147
148acpi_status
149acpi_hw_enable_all_runtime_gpes (
150 u32 flags);
151
152acpi_status
153acpi_hw_enable_all_wakeup_gpes (
154 u32 flags);
155
156acpi_status
157acpi_hw_enable_runtime_gpe_block (
158 struct acpi_gpe_xrupt_info *gpe_xrupt_info,
159 struct acpi_gpe_block_info *gpe_block);
160
161
162#ifdef ACPI_FUTURE_USAGE
163/*
164 * hwtimer - ACPI Timer prototypes
165 */
166acpi_status
167acpi_get_timer_resolution (
168 u32 *resolution);
169
170acpi_status
171acpi_get_timer (
172 u32 *ticks);
173
174acpi_status
175acpi_get_timer_duration (
176 u32 start_ticks,
177 u32 end_ticks,
178 u32 *time_elapsed);
179#endif /* ACPI_FUTURE_USAGE */
180
181
182#endif /* __ACHWARE_H__ */