kernel/drivers/acpi/acpica/utglobal.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utglobal - Global variables for the ACPI subsystem
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2015, 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 #define EXPORT_ACPI_INTERFACES
  45 #define DEFINE_ACPI_GLOBALS
  46
  47 #include <acpi/acpi.h>
  48 #include "accommon.h"
  49
  50 #define _COMPONENT          ACPI_UTILITIES
  51 ACPI_MODULE_NAME("utglobal")
  52
  53 /*******************************************************************************
  54  *
  55  * Static global variable initialization.
  56  *
  57  ******************************************************************************/
  58 /* Various state name strings */
  59 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
  60         "\\_S0_",
  61         "\\_S1_",
  62         "\\_S2_",
  63         "\\_S3_",
  64         "\\_S4_",
  65         "\\_S5_"
  66 };
  67
  68 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
  69         "_S0W",
  70         "_S1W",
  71         "_S2W",
  72         "_S3W",
  73         "_S4W"
  74 };
  75
  76 const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
  77         "_S1D",
  78         "_S2D",
  79         "_S3D",
  80         "_S4D"
  81 };
  82
  83 /*******************************************************************************
  84  *
  85  * Namespace globals
  86  *
  87  ******************************************************************************/
  88 /*
  89  * Predefined ACPI Names (Built-in to the Interpreter)
  90  *
  91  * NOTES:
  92  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
  93  *    during the initialization sequence.
  94  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
  95  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
  96  *    This still allows notifies, but does not confuse host code that
  97  *    searches for valid thermal_zone objects.
  98  */
  99 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
 100         {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
 101         {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
 102         {"_SB_", ACPI_TYPE_DEVICE, NULL},
 103         {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
 104         {"_TZ_", ACPI_TYPE_DEVICE, NULL},
 105         /*
 106          * March, 2015:
 107          * The _REV object is in the process of being deprecated, because
 108          * other ACPI implementations permanently return 2. Thus, it
 109          * has little or no value. Return 2 for compatibility with
 110          * other ACPI implementations.
 111          */
 112         {"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
 113         {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
 114         {"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
 115
 116 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 117         {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
 118 #endif
 119
 120         /* Table terminator */
 121
 122         {NULL, ACPI_TYPE_ANY, NULL}
 123 };
 124
 125 #if (!ACPI_REDUCED_HARDWARE)
 126 /******************************************************************************
 127  *
 128  * Event and Hardware globals
 129  *
 130  ******************************************************************************/
 131
 132 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
 133         /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 134
 135         /* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
 136                                                 ACPI_BITPOSITION_TIMER_STATUS,
 137                                                 ACPI_BITMASK_TIMER_STATUS},
 138         /* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
 139                                                 ACPI_BITPOSITION_BUS_MASTER_STATUS,
 140                                                 ACPI_BITMASK_BUS_MASTER_STATUS},
 141         /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 142                                                 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
 143                                                 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 144         /* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 145                                                 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
 146                                                 ACPI_BITMASK_POWER_BUTTON_STATUS},
 147         /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 148                                                 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
 149                                                 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 150         /* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
 151                                                 ACPI_BITPOSITION_RT_CLOCK_STATUS,
 152                                                 ACPI_BITMASK_RT_CLOCK_STATUS},
 153         /* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
 154                                                 ACPI_BITPOSITION_WAKE_STATUS,
 155                                                 ACPI_BITMASK_WAKE_STATUS},
 156         /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 157                                                 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
 158                                                 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 159
 160         /* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
 161                                                 ACPI_BITPOSITION_TIMER_ENABLE,
 162                                                 ACPI_BITMASK_TIMER_ENABLE},
 163         /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
 164                                                 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
 165                                                 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 166         /* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 167                                                 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
 168                                                 ACPI_BITMASK_POWER_BUTTON_ENABLE},
 169         /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 170                                                 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
 171                                                 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 172         /* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
 173                                                 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
 174                                                 ACPI_BITMASK_RT_CLOCK_ENABLE},
 175         /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 176                                                 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
 177                                                 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 178
 179         /* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
 180                                                 ACPI_BITPOSITION_SCI_ENABLE,
 181                                                 ACPI_BITMASK_SCI_ENABLE},
 182         /* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
 183                                                 ACPI_BITPOSITION_BUS_MASTER_RLD,
 184                                                 ACPI_BITMASK_BUS_MASTER_RLD},
 185         /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
 186                                                 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
 187                                                 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 188         /* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
 189                                                 ACPI_BITPOSITION_SLEEP_TYPE,
 190                                                 ACPI_BITMASK_SLEEP_TYPE},
 191         /* ACPI_BITREG_SLEEP_ENABLE         */ {ACPI_REGISTER_PM1_CONTROL,
 192                                                 ACPI_BITPOSITION_SLEEP_ENABLE,
 193                                                 ACPI_BITMASK_SLEEP_ENABLE},
 194
 195         /* ACPI_BITREG_ARB_DIS              */ {ACPI_REGISTER_PM2_CONTROL,
 196                                                 ACPI_BITPOSITION_ARB_DISABLE,
 197                                                 ACPI_BITMASK_ARB_DISABLE}
 198 };
 199
 200 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
 201         /* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
 202                                         ACPI_BITREG_TIMER_ENABLE,
 203                                         ACPI_BITMASK_TIMER_STATUS,
 204                                         ACPI_BITMASK_TIMER_ENABLE},
 205         /* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
 206                                         ACPI_BITREG_GLOBAL_LOCK_ENABLE,
 207                                         ACPI_BITMASK_GLOBAL_LOCK_STATUS,
 208                                         ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 209         /* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
 210                                         ACPI_BITREG_POWER_BUTTON_ENABLE,
 211                                         ACPI_BITMASK_POWER_BUTTON_STATUS,
 212                                         ACPI_BITMASK_POWER_BUTTON_ENABLE},
 213         /* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
 214                                         ACPI_BITREG_SLEEP_BUTTON_ENABLE,
 215                                         ACPI_BITMASK_SLEEP_BUTTON_STATUS,
 216                                         ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 217         /* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
 218                                         ACPI_BITREG_RT_CLOCK_ENABLE,
 219                                         ACPI_BITMASK_RT_CLOCK_STATUS,
 220                                         ACPI_BITMASK_RT_CLOCK_ENABLE},
 221 };
 222 #endif                          /* !ACPI_REDUCED_HARDWARE */
 223
 224 /* Public globals */
 225
 226 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 227 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 228 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
 229 ACPI_EXPORT_SYMBOL(acpi_gpe_count)
 230 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)