include/acpi/achware.h

   1 /******************************************************************************
   2  *
   3  * Name: achware.h -- hardware specific interfaces
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2004, 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 #define PM_TIMER_FREQUENCY  3579545
  50
  51
  52 /* Prototypes */
  53
  54
  55 acpi_status
  56 acpi_hw_initialize (
  57         void);
  58
  59 acpi_status
  60 acpi_hw_shutdown (
  61         void);
  62
  63 acpi_status
  64 acpi_hw_initialize_system_info (
  65         void);
  66
  67 acpi_status
  68 acpi_hw_set_mode (
  69         u32                             mode);
  70
  71 u32
  72 acpi_hw_get_mode (
  73         void);
  74
  75 u32
  76 acpi_hw_get_mode_capabilities (
  77         void);
  78
  79 /* Register I/O Prototypes */
  80
  81 struct acpi_bit_register_info *
  82 acpi_hw_get_bit_register_info (
  83         u32                             register_id);
  84
  85 acpi_status
  86 acpi_hw_register_read (
  87         u8                              use_lock,
  88         u32                             register_id,
  89         u32                             *return_value);
  90
  91 acpi_status
  92 acpi_hw_register_write (
  93         u8                              use_lock,
  94         u32                             register_id,
  95         u32                             value);
  96
  97 acpi_status
  98 acpi_hw_low_level_read (
  99         u32                             width,
 100         u32                             *value,
 101         struct acpi_generic_address     *reg);
 102
 103 acpi_status
 104 acpi_hw_low_level_write (
 105         u32                             width,
 106         u32                             value,
 107         struct acpi_generic_address     *reg);
 108
 109 acpi_status
 110 acpi_hw_clear_acpi_status (
 111         u32                             flags);
 112
 113
 114 /* GPE support */
 115
 116 acpi_status
 117 acpi_hw_enable_gpe (
 118         struct acpi_gpe_event_info      *gpe_event_info);
 119
 120 void
 121 acpi_hw_enable_gpe_for_wakeup (
 122         struct acpi_gpe_event_info      *gpe_event_info);
 123
 124 acpi_status
 125 acpi_hw_disable_gpe (
 126         struct acpi_gpe_event_info      *gpe_event_info);
 127
 128 acpi_status
 129 acpi_hw_disable_gpe_block (
 130         struct acpi_gpe_xrupt_info      *gpe_xrupt_info,
 131         struct acpi_gpe_block_info      *gpe_block);
 132
 133 void
 134 acpi_hw_disable_gpe_for_wakeup (
 135         struct acpi_gpe_event_info      *gpe_event_info);
 136
 137 acpi_status
 138 acpi_hw_clear_gpe (
 139         struct acpi_gpe_event_info      *gpe_event_info);
 140
 141 acpi_status
 142 acpi_hw_clear_gpe_block (
 143         struct acpi_gpe_xrupt_info      *gpe_xrupt_info,
 144         struct acpi_gpe_block_info      *gpe_block);
 145
 146 acpi_status
 147 acpi_hw_get_gpe_status (
 148         struct acpi_gpe_event_info      *gpe_event_info,
 149         acpi_event_status               *event_status);
 150
 151 acpi_status
 152 acpi_hw_prepare_gpes_for_sleep (
 153         void);
 154
 155 acpi_status
 156 acpi_hw_restore_gpes_on_wake (
 157         void);
 158
 159
 160 /* ACPI Timer prototypes */
 161
 162 acpi_status
 163 acpi_get_timer_resolution (
 164         u32                             *resolution);
 165
 166 acpi_status
 167 acpi_get_timer (
 168         u32                             *ticks);
 169
 170 acpi_status
 171 acpi_get_timer_duration (
 172         u32                             start_ticks,
 173         u32                             end_ticks,
 174         u32                             *time_elapsed);
 175
 176
 177 #endif /* __ACHWARE_H__ */