drivers/acpi/acpica/achware.h

   1 /******************************************************************************
   2  *
   3  * Name: achware.h -- hardware specific interfaces
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2010, Intel Corp.
   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 /* Values for the _SST predefined method */
  48
  49 #define ACPI_SST_INDICATOR_OFF  0
  50 #define ACPI_SST_WORKING        1
  51 #define ACPI_SST_WAKING         2
  52 #define ACPI_SST_SLEEPING       3
  53 #define ACPI_SST_SLEEP_CONTEXT  4
  54
  55 /*
  56  * hwacpi - high level functions
  57  */
  58 acpi_status acpi_hw_set_mode(u32 mode);
  59
  60 u32 acpi_hw_get_mode(void);
  61
  62 /*
  63  * hwregs - ACPI Register I/O
  64  */
  65 acpi_status
  66 acpi_hw_validate_register(struct acpi_generic_address *reg,
  67                           u8 max_bit_width, u64 *address);
  68
  69 acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg);
  70
  71 acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg);
  72
  73 struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id);
  74
  75 acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control);
  76
  77 acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value);
  78
  79 acpi_status acpi_hw_register_write(u32 register_id, u32 value);
  80
  81 acpi_status acpi_hw_clear_acpi_status(void);
  82
  83 /*
  84  * hwvalid - Port I/O with validation
  85  */
  86 acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width);
  87
  88 acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
  89
  90 /*
  91  * hwgpe - GPE support
  92  */
  93 u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
  94                              struct acpi_gpe_register_info *gpe_register_info);
  95
  96 acpi_status
  97 acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action);
  98
  99 acpi_status
 100 acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info);
 101
 102 acpi_status
 103 acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 104                           struct acpi_gpe_block_info *gpe_block, void *context);
 105
 106 acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info *gpe_event_info);
 107
 108 acpi_status
 109 acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 110                         struct acpi_gpe_block_info *gpe_block, void *context);
 111
 112 acpi_status
 113 acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
 114                        acpi_event_status * event_status);
 115
 116 acpi_status acpi_hw_disable_all_gpes(void);
 117
 118 acpi_status acpi_hw_enable_all_runtime_gpes(void);
 119
 120 acpi_status acpi_hw_enable_all_wakeup_gpes(void);
 121
 122 acpi_status
 123 acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 124                                  struct acpi_gpe_block_info *gpe_block,
 125                                  void *context);
 126
 127 #ifdef  ACPI_FUTURE_USAGE
 128 /*
 129  * hwtimer - ACPI Timer prototypes
 130  */
 131 acpi_status acpi_get_timer_resolution(u32 * resolution);
 132
 133 acpi_status acpi_get_timer(u32 * ticks);
 134
 135 acpi_status
 136 acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed);
 137 #endif                          /* ACPI_FUTURE_USAGE */
 138
 139 #endif                          /* __ACHWARE_H__ */