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utglobal.c revision 1.14
      1 /******************************************************************************
      2  *
      3  * Module Name: utglobal - Global variables for the ACPI subsystem
      4  *
      5  *****************************************************************************/
      6 
      7 /*
      8  * Copyright (C) 2000 - 2021, 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 MERCHANTABILITY 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.h"
     48 #include "accommon.h"
     49 
     50 #define _COMPONENT          ACPI_UTILITIES
     51         ACPI_MODULE_NAME    ("utglobal")
     52 
     53 
     54 /*******************************************************************************
     55  *
     56  * Static global variable initialization.
     57  *
     58  ******************************************************************************/
     59 
     60 /* Various state name strings */
     61 
     62 const char                  *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
     63 {
     64     "\\_S0_",
     65     "\\_S1_",
     66     "\\_S2_",
     67     "\\_S3_",
     68     "\\_S4_",
     69     "\\_S5_"
     70 };
     71 
     72 const char                  *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
     73 {
     74     "_S0W",
     75     "_S1W",
     76     "_S2W",
     77     "_S3W",
     78     "_S4W"
     79 };
     80 
     81 const char                  *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
     82 {
     83     "_S1D",
     84     "_S2D",
     85     "_S3D",
     86     "_S4D"
     87 };
     88 
     89 
     90 /* Hex-to-ascii */
     91 
     92 const char                  AcpiGbl_LowerHexDigits[] = "0123456789abcdef";
     93 const char                  AcpiGbl_UpperHexDigits[] = "0123456789ABCDEF";
     94 
     95 
     96 /*******************************************************************************
     97  *
     98  * Namespace globals
     99  *
    100  ******************************************************************************/
    101 
    102 /*
    103  * Predefined ACPI Names (Built-in to the Interpreter)
    104  *
    105  * NOTES:
    106  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
    107  *    during the initialization sequence.
    108  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
    109  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
    110  *    This still allows notifies, but does not confuse host code that
    111  *    searches for valid ThermalZone objects.
    112  */
    113 const ACPI_PREDEFINED_NAMES     AcpiGbl_PreDefinedNames[] =
    114 {
    115     {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
    116     {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
    117     {"_SB_",    ACPI_TYPE_DEVICE,           NULL},
    118     {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
    119     {"_TZ_",    ACPI_TYPE_DEVICE,           NULL},
    120     /*
    121      * March, 2015:
    122      * The _REV object is in the process of being deprecated, because
    123      * other ACPI implementations permanently return 2. Thus, it
    124      * has little or no value. Return 2 for compatibility with
    125      * other ACPI implementations.
    126      */
    127     {"_REV",    ACPI_TYPE_INTEGER,          ACPI_CAST_PTR (char, 2)},
    128     {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},
    129     {"_GL_",    ACPI_TYPE_MUTEX,            ACPI_CAST_PTR (char, 1)},
    130     {"_OSI",    ACPI_TYPE_METHOD,           ACPI_CAST_PTR (char, 1)},
    131 
    132     /* Table terminator */
    133 
    134     {NULL,      ACPI_TYPE_ANY,              NULL}
    135 };
    136 
    137 
    138 #if (!ACPI_REDUCED_HARDWARE)
    139 /******************************************************************************
    140  *
    141  * Event and Hardware globals
    142  *
    143  ******************************************************************************/
    144 
    145 ACPI_BIT_REGISTER_INFO      AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
    146 {
    147     /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
    148 
    149     /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},
    150     /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},
    151     /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},
    152     /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},
    153     /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},
    154     /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},
    155     /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},
    156     /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,    ACPI_BITMASK_PCIEXP_WAKE_STATUS},
    157 
    158     /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},
    159     /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
    160     /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
    161     /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
    162     /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},
    163     /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,   ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
    164 
    165     /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},
    166     /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},
    167     /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
    168     /* ACPI_BITREG_SLEEP_TYPE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE,            ACPI_BITMASK_SLEEP_TYPE},
    169     /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},
    170 
    171     /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}
    172 };
    173 
    174 
    175 ACPI_FIXED_EVENT_INFO       AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
    176 {
    177     /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},
    178     /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
    179     /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
    180     /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
    181     /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},
    182 };
    183 #endif /* !ACPI_REDUCED_HARDWARE */
    184 
    185 
    186 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
    187 
    188 /* ToPld macro: compile/disassemble strings */
    189 
    190 const char              *AcpiGbl_PldPanelList[] =
    191 {
    192     "TOP",
    193     "BOTTOM",
    194     "LEFT",
    195     "RIGHT",
    196     "FRONT",
    197     "BACK",
    198     "UNKNOWN",
    199     NULL
    200 };
    201 
    202 const char              *AcpiGbl_PldVerticalPositionList[] =
    203 {
    204     "UPPER",
    205     "CENTER",
    206     "LOWER",
    207     NULL
    208 };
    209 
    210 const char              *AcpiGbl_PldHorizontalPositionList[] =
    211 {
    212     "LEFT",
    213     "CENTER",
    214     "RIGHT",
    215     NULL
    216 };
    217 
    218 const char              *AcpiGbl_PldShapeList[] =
    219 {
    220     "ROUND",
    221     "OVAL",
    222     "SQUARE",
    223     "VERTICALRECTANGLE",
    224     "HORIZONTALRECTANGLE",
    225     "VERTICALTRAPEZOID",
    226     "HORIZONTALTRAPEZOID",
    227     "UNKNOWN",
    228     "CHAMFERED",
    229     NULL
    230 };
    231 #endif
    232 
    233 
    234 /* Public globals */
    235 
    236 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
    237 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
    238 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
    239 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
    240 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)
    241