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 - 2018, 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
  17 ACPI_MODULE_NAME("utglobal")
  18
  19 /*******************************************************************************
  20  *
  21  * Static global variable initialization.
  22  *
  23  ******************************************************************************/
  24 /* Various state name strings */
  25 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
  26         "\\_S0_",
  27         "\\_S1_",
  28         "\\_S2_",
  29         "\\_S3_",
  30         "\\_S4_",
  31         "\\_S5_"
  32 };
  33
  34 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
  35         "_S0W",
  36         "_S1W",
  37         "_S2W",
  38         "_S3W",
  39         "_S4W"
  40 };
  41
  42 const 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
  51 const char acpi_gbl_lower_hex_digits[] = "0123456789abcdef";
  52 const 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  */
  70 const 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
  87 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
  88         {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
  89 #endif
  90
  91         /* Table terminator */
  92
  93         {NULL, ACPI_TYPE_ANY, NULL}
  94 };
  95
  96 #if (!ACPI_REDUCED_HARDWARE)
  97 /******************************************************************************
  98  *
  99  * Event and Hardware globals
 100  *
 101  ******************************************************************************/
 102
 103 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
 104         /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 105
 106         /* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
 107                                                 ACPI_BITPOSITION_TIMER_STATUS,
 108                                                 ACPI_BITMASK_TIMER_STATUS},
 109         /* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
 110                                                 ACPI_BITPOSITION_BUS_MASTER_STATUS,
 111                                                 ACPI_BITMASK_BUS_MASTER_STATUS},
 112         /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 113                                                 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
 114                                                 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 115         /* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 116                                                 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
 117                                                 ACPI_BITMASK_POWER_BUTTON_STATUS},
 118         /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 119                                                 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
 120                                                 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 121         /* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
 122                                                 ACPI_BITPOSITION_RT_CLOCK_STATUS,
 123                                                 ACPI_BITMASK_RT_CLOCK_STATUS},
 124         /* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
 125                                                 ACPI_BITPOSITION_WAKE_STATUS,
 126                                                 ACPI_BITMASK_WAKE_STATUS},
 127         /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 128                                                 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
 129                                                 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 130
 131         /* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
 132                                                 ACPI_BITPOSITION_TIMER_ENABLE,
 133                                                 ACPI_BITMASK_TIMER_ENABLE},
 134         /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
 135                                                 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
 136                                                 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 137         /* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 138                                                 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
 139                                                 ACPI_BITMASK_POWER_BUTTON_ENABLE},
 140         /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 141                                                 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
 142                                                 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 143         /* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
 144                                                 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
 145                                                 ACPI_BITMASK_RT_CLOCK_ENABLE},
 146         /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 147                                                 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
 148                                                 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 149
 150         /* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
 151                                                 ACPI_BITPOSITION_SCI_ENABLE,
 152                                                 ACPI_BITMASK_SCI_ENABLE},
 153         /* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
 154                                                 ACPI_BITPOSITION_BUS_MASTER_RLD,
 155                                                 ACPI_BITMASK_BUS_MASTER_RLD},
 156         /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
 157                                                 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
 158                                                 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 159         /* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
 160                                                 ACPI_BITPOSITION_SLEEP_TYPE,
 161                                                 ACPI_BITMASK_SLEEP_TYPE},
 162         /* ACPI_BITREG_SLEEP_ENABLE         */ {ACPI_REGISTER_PM1_CONTROL,
 163                                                 ACPI_BITPOSITION_SLEEP_ENABLE,
 164                                                 ACPI_BITMASK_SLEEP_ENABLE},
 165
 166         /* ACPI_BITREG_ARB_DIS              */ {ACPI_REGISTER_PM2_CONTROL,
 167                                                 ACPI_BITPOSITION_ARB_DISABLE,
 168                                                 ACPI_BITMASK_ARB_DISABLE}
 169 };
 170
 171 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
 172         /* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
 173                                         ACPI_BITREG_TIMER_ENABLE,
 174                                         ACPI_BITMASK_TIMER_STATUS,
 175                                         ACPI_BITMASK_TIMER_ENABLE},
 176         /* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
 177                                         ACPI_BITREG_GLOBAL_LOCK_ENABLE,
 178                                         ACPI_BITMASK_GLOBAL_LOCK_STATUS,
 179                                         ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 180         /* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
 181                                         ACPI_BITREG_POWER_BUTTON_ENABLE,
 182                                         ACPI_BITMASK_POWER_BUTTON_STATUS,
 183                                         ACPI_BITMASK_POWER_BUTTON_ENABLE},
 184         /* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
 185                                         ACPI_BITREG_SLEEP_BUTTON_ENABLE,
 186                                         ACPI_BITMASK_SLEEP_BUTTON_STATUS,
 187                                         ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 188         /* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
 189                                         ACPI_BITREG_RT_CLOCK_ENABLE,
 190                                         ACPI_BITMASK_RT_CLOCK_STATUS,
 191                                         ACPI_BITMASK_RT_CLOCK_ENABLE},
 192 };
 193 #endif                          /* !ACPI_REDUCED_HARDWARE */
 194
 195 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
 196
 197 /* to_pld macro: compile/disassemble strings */
 198
 199 const char *acpi_gbl_pld_panel_list[] = {
 200         "TOP",
 201         "BOTTOM",
 202         "LEFT",
 203         "RIGHT",
 204         "FRONT",
 205         "BACK",
 206         "UNKNOWN",
 207         NULL
 208 };
 209
 210 const char *acpi_gbl_pld_vertical_position_list[] = {
 211         "UPPER",
 212         "CENTER",
 213         "LOWER",
 214         NULL
 215 };
 216
 217 const char *acpi_gbl_pld_horizontal_position_list[] = {
 218         "LEFT",
 219         "CENTER",
 220         "RIGHT",
 221         NULL
 222 };
 223
 224 const char *acpi_gbl_pld_shape_list[] = {
 225         "ROUND",
 226         "OVAL",
 227         "SQUARE",
 228         "VERTICALRECTANGLE",
 229         "HORIZONTALRECTANGLE",
 230         "VERTICALTRAPEZOID",
 231         "HORIZONTALTRAPEZOID",
 232         "UNKNOWN",
 233         "CHAMFERED",
 234         NULL
 235 };
 236 #endif
 237
 238 /* Public globals */
 239
 240 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 241 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 242 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
 243 ACPI_EXPORT_SYMBOL(acpi_gpe_count)
 244 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)