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 - 2018, 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 /* Hex-to-ascii */
  84
  85 const char acpi_gbl_lower_hex_digits[] = "0123456789abcdef";
  86 const char acpi_gbl_upper_hex_digits[] = "0123456789ABCDEF";
  87
  88 /*******************************************************************************
  89  *
  90  * Namespace globals
  91  *
  92  ******************************************************************************/
  93 /*
  94  * Predefined ACPI Names (Built-in to the Interpreter)
  95  *
  96  * NOTES:
  97  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
  98  *    during the initialization sequence.
  99  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
 100  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
 101  *    This still allows notifies, but does not confuse host code that
 102  *    searches for valid thermal_zone objects.
 103  */
 104 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
 105         {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
 106         {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
 107         {"_SB_", ACPI_TYPE_DEVICE, NULL},
 108         {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
 109         {"_TZ_", ACPI_TYPE_DEVICE, NULL},
 110         /*
 111          * March, 2015:
 112          * The _REV object is in the process of being deprecated, because
 113          * other ACPI implementations permanently return 2. Thus, it
 114          * has little or no value. Return 2 for compatibility with
 115          * other ACPI implementations.
 116          */
 117         {"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
 118         {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
 119         {"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
 120
 121 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 122         {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
 123 #endif
 124
 125         /* Table terminator */
 126
 127         {NULL, ACPI_TYPE_ANY, NULL}
 128 };
 129
 130 #if (!ACPI_REDUCED_HARDWARE)
 131 /******************************************************************************
 132  *
 133  * Event and Hardware globals
 134  *
 135  ******************************************************************************/
 136
 137 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
 138         /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 139
 140         /* ACPI_BITREG_TIMER_STATUS         */ {ACPI_REGISTER_PM1_STATUS,
 141                                                 ACPI_BITPOSITION_TIMER_STATUS,
 142                                                 ACPI_BITMASK_TIMER_STATUS},
 143         /* ACPI_BITREG_BUS_MASTER_STATUS    */ {ACPI_REGISTER_PM1_STATUS,
 144                                                 ACPI_BITPOSITION_BUS_MASTER_STATUS,
 145                                                 ACPI_BITMASK_BUS_MASTER_STATUS},
 146         /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 147                                                 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
 148                                                 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 149         /* ACPI_BITREG_POWER_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 150                                                 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
 151                                                 ACPI_BITMASK_POWER_BUTTON_STATUS},
 152         /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */ {ACPI_REGISTER_PM1_STATUS,
 153                                                 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
 154                                                 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 155         /* ACPI_BITREG_RT_CLOCK_STATUS      */ {ACPI_REGISTER_PM1_STATUS,
 156                                                 ACPI_BITPOSITION_RT_CLOCK_STATUS,
 157                                                 ACPI_BITMASK_RT_CLOCK_STATUS},
 158         /* ACPI_BITREG_WAKE_STATUS          */ {ACPI_REGISTER_PM1_STATUS,
 159                                                 ACPI_BITPOSITION_WAKE_STATUS,
 160                                                 ACPI_BITMASK_WAKE_STATUS},
 161         /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */ {ACPI_REGISTER_PM1_STATUS,
 162                                                 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
 163                                                 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 164
 165         /* ACPI_BITREG_TIMER_ENABLE         */ {ACPI_REGISTER_PM1_ENABLE,
 166                                                 ACPI_BITPOSITION_TIMER_ENABLE,
 167                                                 ACPI_BITMASK_TIMER_ENABLE},
 168         /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */ {ACPI_REGISTER_PM1_ENABLE,
 169                                                 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
 170                                                 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 171         /* ACPI_BITREG_POWER_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 172                                                 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
 173                                                 ACPI_BITMASK_POWER_BUTTON_ENABLE},
 174         /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 175                                                 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
 176                                                 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 177         /* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
 178                                                 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
 179                                                 ACPI_BITMASK_RT_CLOCK_ENABLE},
 180         /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 181                                                 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
 182                                                 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 183
 184         /* ACPI_BITREG_SCI_ENABLE           */ {ACPI_REGISTER_PM1_CONTROL,
 185                                                 ACPI_BITPOSITION_SCI_ENABLE,
 186                                                 ACPI_BITMASK_SCI_ENABLE},
 187         /* ACPI_BITREG_BUS_MASTER_RLD       */ {ACPI_REGISTER_PM1_CONTROL,
 188                                                 ACPI_BITPOSITION_BUS_MASTER_RLD,
 189                                                 ACPI_BITMASK_BUS_MASTER_RLD},
 190         /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */ {ACPI_REGISTER_PM1_CONTROL,
 191                                                 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
 192                                                 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 193         /* ACPI_BITREG_SLEEP_TYPE           */ {ACPI_REGISTER_PM1_CONTROL,
 194                                                 ACPI_BITPOSITION_SLEEP_TYPE,
 195                                                 ACPI_BITMASK_SLEEP_TYPE},
 196         /* ACPI_BITREG_SLEEP_ENABLE         */ {ACPI_REGISTER_PM1_CONTROL,
 197                                                 ACPI_BITPOSITION_SLEEP_ENABLE,
 198                                                 ACPI_BITMASK_SLEEP_ENABLE},
 199
 200         /* ACPI_BITREG_ARB_DIS              */ {ACPI_REGISTER_PM2_CONTROL,
 201                                                 ACPI_BITPOSITION_ARB_DISABLE,
 202                                                 ACPI_BITMASK_ARB_DISABLE}
 203 };
 204
 205 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
 206         /* ACPI_EVENT_PMTIMER       */ {ACPI_BITREG_TIMER_STATUS,
 207                                         ACPI_BITREG_TIMER_ENABLE,
 208                                         ACPI_BITMASK_TIMER_STATUS,
 209                                         ACPI_BITMASK_TIMER_ENABLE},
 210         /* ACPI_EVENT_GLOBAL        */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
 211                                         ACPI_BITREG_GLOBAL_LOCK_ENABLE,
 212                                         ACPI_BITMASK_GLOBAL_LOCK_STATUS,
 213                                         ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 214         /* ACPI_EVENT_POWER_BUTTON  */ {ACPI_BITREG_POWER_BUTTON_STATUS,
 215                                         ACPI_BITREG_POWER_BUTTON_ENABLE,
 216                                         ACPI_BITMASK_POWER_BUTTON_STATUS,
 217                                         ACPI_BITMASK_POWER_BUTTON_ENABLE},
 218         /* ACPI_EVENT_SLEEP_BUTTON  */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
 219                                         ACPI_BITREG_SLEEP_BUTTON_ENABLE,
 220                                         ACPI_BITMASK_SLEEP_BUTTON_STATUS,
 221                                         ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 222         /* ACPI_EVENT_RTC           */ {ACPI_BITREG_RT_CLOCK_STATUS,
 223                                         ACPI_BITREG_RT_CLOCK_ENABLE,
 224                                         ACPI_BITMASK_RT_CLOCK_STATUS,
 225                                         ACPI_BITMASK_RT_CLOCK_ENABLE},
 226 };
 227 #endif                          /* !ACPI_REDUCED_HARDWARE */
 228
 229 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
 230
 231 /* to_pld macro: compile/disassemble strings */
 232
 233 const char *acpi_gbl_pld_panel_list[] = {
 234         "TOP",
 235         "BOTTOM",
 236         "LEFT",
 237         "RIGHT",
 238         "FRONT",
 239         "BACK",
 240         "UNKNOWN",
 241         NULL
 242 };
 243
 244 const char *acpi_gbl_pld_vertical_position_list[] = {
 245         "UPPER",
 246         "CENTER",
 247         "LOWER",
 248         NULL
 249 };
 250
 251 const char *acpi_gbl_pld_horizontal_position_list[] = {
 252         "LEFT",
 253         "CENTER",
 254         "RIGHT",
 255         NULL
 256 };
 257
 258 const char *acpi_gbl_pld_shape_list[] = {
 259         "ROUND",
 260         "OVAL",
 261         "SQUARE",
 262         "VERTICALRECTANGLE",
 263         "HORIZONTALRECTANGLE",
 264         "VERTICALTRAPEZOID",
 265         "HORIZONTALTRAPEZOID",
 266         "UNKNOWN",
 267         "CHAMFERED",
 268         NULL
 269 };
 270 #endif
 271
 272 /* Public globals */
 273
 274 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
 275 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 276 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
 277 ACPI_EXPORT_SYMBOL(acpi_gpe_count)
 278 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)