LXR linux/drivers/acpi/acpica/utglobal.c

   1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
   2/******************************************************************************
   3 *
   4 * Module Name: utglobal - Global variables for the ACPI subsystem
   5 *
   6 * Copyright (C) 2000 - 2019, Intel Corp.
   7 *
   8 *****************************************************************************/
   9
  10#define EXPORT_ACPI_INTERFACES
  11#define DEFINE_ACPI_GLOBALS
  12
  13#include <acpi/acpi.h>
  14#include "accommon.h"
  15
  16#define _COMPONENT          ACPI_UTILITIES
  17ACPI_MODULE_NAME("utglobal")
  18
  19/*******************************************************************************
  20 *
  21 * Static global variable initialization.
  22 *
  23 ******************************************************************************/
  24/* Various state name strings */
  25const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
  26        "\\_S0_",
  27        "\\_S1_",
  28        "\\_S2_",
  29        "\\_S3_",
  30        "\\_S4_",
  31        "\\_S5_"
  32};
  33
  34const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
  35        "_S0W",
  36        "_S1W",
  37        "_S2W",
  38        "_S3W",
  39        "_S4W"
  40};
  41
  42const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
  43        "_S1D",
  44        "_S2D",
  45        "_S3D",
  46        "_S4D"
  47};
  48
  49/* Hex-to-ascii */
  50
  51const char acpi_gbl_lower_hex_digits[] = "0123456789abcdef";
  52const char acpi_gbl_upper_hex_digits[] = "0123456789ABCDEF";
  53
  54/*******************************************************************************
  55 *
  56 * Namespace globals
  57 *
  58 ******************************************************************************/
  59/*
  60 * Predefined ACPI Names (Built-in to the Interpreter)
  61 *
  62 * NOTES:
  63 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
  64 *    during the initialization sequence.
  65 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
  66 *    perform a Notify() operation on it. 09/2010: Changed to type Device.
  67 *    This still allows notifies, but does not confuse host code that
  68 *    searches for valid thermal_zone objects.
  69 */
  70const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
  71        {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
  72        {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
  73        {"_SB_", ACPI_TYPE_DEVICE, NULL},
  74        {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
  75        {"_TZ_", ACPI_TYPE_DEVICE, NULL},
  76        /*
  77         * March, 2015:
  78         * The _REV object is in the process of being deprecated, because
  79         * other ACPI implementations permanently return 2. Thus, it
  80         * has little or no value. Return 2 for compatibility with
  81         * other ACPI implementations.
  82         */
  83        {"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
  84        {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
  85        {"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
  86        {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
  87
  88        /* Table terminator */
  89
  90        {NULL, ACPI_TYPE_ANY, NULL}
  91};
  92
  93#if (!ACPI_REDUCED_HARDWARE)
  94/******************************************************************************
  95 *
  96 * Event and Hardware globals
  97 *
  98 ******************************************************************************/
  99
 100struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
 101        /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 102
 103        /* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
 104                                                ACPI_BITPOSITION_TIMER_STATUS,
 105                                                ACPI_BITMASK_TIMER_STATUS},
 106        /* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
 107                                                ACPI_BITPOSITION_BUS_MASTER_STATUS,
 108                                                ACPI_BITMASK_BUS_MASTER_STATUS},
 109        /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 110                                                ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
 111                                                ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 112        /* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 113                                                ACPI_BITPOSITION_POWER_BUTTON_STATUS,
 114                                                ACPI_BITMASK_POWER_BUTTON_STATUS},
 115        /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 116                                                ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
 117                                                ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 118        /* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
 119                                                ACPI_BITPOSITION_RT_CLOCK_STATUS,
 120                                                ACPI_BITMASK_RT_CLOCK_STATUS},
 121        /* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
 122                                                ACPI_BITPOSITION_WAKE_STATUS,
 123                                                ACPI_BITMASK_WAKE_STATUS},
 124        /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 125                                                ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
 126                                                ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 127
 128        /* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
 129                                                ACPI_BITPOSITION_TIMER_ENABLE,
 130                                                ACPI_BITMASK_TIMER_ENABLE},
 131        /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
 132                                                ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
 133                                                ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 134        /* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 135                                                ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
 136                                                ACPI_BITMASK_POWER_BUTTON_ENABLE},
 137        /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 138                                                ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
 139                                                ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 140        /* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
 141                                                ACPI_BITPOSITION_RT_CLOCK_ENABLE,
 142                                                ACPI_BITMASK_RT_CLOCK_ENABLE},
 143        /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 144                                                ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
 145                                                ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 146
 147        /* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
 148                                                ACPI_BITPOSITION_SCI_ENABLE,
 149                                                ACPI_BITMASK_SCI_ENABLE},
 150        /* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
 151                                                ACPI_BITPOSITION_BUS_MASTER_RLD,
 152                                                ACPI_BITMASK_BUS_MASTER_RLD},
 153        /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
 154                                                ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
 155                                                ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 156        /* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
 157                                                ACPI_BITPOSITION_SLEEP_TYPE,
 158                                                ACPI_BITMASK_SLEEP_TYPE},
 159        /* ACPI_BITREG_SLEEP_ENABLE         */ {ACPI_REGISTER_PM1_CONTROL,
 160                                                ACPI_BITPOSITION_SLEEP_ENABLE,
 161                                                ACPI_BITMASK_SLEEP_ENABLE},
 162
 163        /* ACPI_BITREG_ARB_DIS              */ {ACPI_REGISTER_PM2_CONTROL,
 164                                                ACPI_BITPOSITION_ARB_DISABLE,
 165                                                ACPI_BITMASK_ARB_DISABLE}
 166};
 167
 168struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
 169        /* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
 170                                        ACPI_BITREG_TIMER_ENABLE,
 171                                        ACPI_BITMASK_TIMER_STATUS,
 172                                        ACPI_BITMASK_TIMER_ENABLE},
 173        /* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
 174                                        ACPI_BITREG_GLOBAL_LOCK_ENABLE,
 175                                        ACPI_BITMASK_GLOBAL_LOCK_STATUS,
 176                                        ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 177        /* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
 178                                        ACPI_BITREG_POWER_BUTTON_ENABLE,
 179                                        ACPI_BITMASK_POWER_BUTTON_STATUS,
 180                                        ACPI_BITMASK_POWER_BUTTON_ENABLE},
 181        /* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
 182                                        ACPI_BITREG_SLEEP_BUTTON_ENABLE,
 183                                        ACPI_BITMASK_SLEEP_BUTTON_STATUS,
 184                                        ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 185        /* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
 186                                        ACPI_BITREG_RT_CLOCK_ENABLE,
 187                                        ACPI_BITMASK_RT_CLOCK_STATUS,
 188                                        ACPI_BITMASK_RT_CLOCK_ENABLE},
 189};
 190#endif                          /* !ACPI_REDUCED_HARDWARE */
 191
 192#if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
 193
 194/* to_pld macro: compile/disassemble strings */
 195
 196const char *acpi_gbl_pld_panel_list[] = {
 197        "TOP",
 198        "BOTTOM",
 199        "LEFT",
 200        "RIGHT",
 201        "FRONT",
 202        "BACK",
 203        "UNKNOWN",
 204        NULL
 205};
 206
 207const char *acpi_gbl_pld_vertical_position_list[] = {
 208        "UPPER",
 209        "CENTER",
 210        "LOWER",
 211        NULL
 212};
 213
 214const char *acpi_gbl_pld_horizontal_position_list[] = {
 215        "LEFT",
 216        "CENTER",
 217        "RIGHT",
 218        NULL
 219};
 220
 221const char *acpi_gbl_pld_shape_list[] = {
 222        "ROUND",
 223        "OVAL",
 224        "SQUARE",
 225        "VERTICALRECTANGLE",
 226        "HORIZONTALRECTANGLE",
 227        "VERTICALTRAPEZOID",
 228        "HORIZONTALTRAPEZOID",
 229        "UNKNOWN",
 230        "CHAMFERED",
 231        NULL
 232};
 233#endif
 234
 235/* Public globals */
 236
 237ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 238ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 239ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
 240ACPI_EXPORT_SYMBOL(acpi_gpe_count)
 241ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
 242