/******************************************************************************
*
* Module Name: utglobal - Global variables for the ACPI subsystem
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2005, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#define DEFINE_ACPI_GLOBALS
#include <linux/module.h>
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME ("utglobal")
/*******************************************************************************
*
* FUNCTION: acpi_format_exception
*
* PARAMETERS: Status - The acpi_status code to be formatted
*
* RETURN: A string containing the exception text. A valid pointer is
* always returned.
*
* DESCRIPTION: This function translates an ACPI exception into an ASCII string.
*
******************************************************************************/
const char *
acpi_format_exception (
acpi_status status)
{
acpi_status sub_status;
const char *exception = NULL;
ACPI_FUNCTION_NAME ("format_exception");
sub_status = (status & ~AE_CODE_MASK);
switch (status & AE_CODE_MASK) {
case AE_CODE_ENVIRONMENTAL:
if (sub_status <= AE_CODE_ENV_MAX) {
exception = acpi_gbl_exception_names_env [sub_status];
}
break;
case AE_CODE_PROGRAMMER:
if (sub_status <= AE_CODE_PGM_MAX) {
exception = acpi_gbl_exception_names_pgm [sub_status -1];
}
break;
case AE_CODE_ACPI_TABLES:
if (sub_status <= AE_CODE_TBL_MAX) {
exception = acpi_gbl_exception_names_tbl [sub_status -1];
}
break;
case AE_CODE_AML:
if (sub_status <= AE_CODE_AML_MAX) {
exception = acpi_gbl_exception_names_aml [sub_status -1];
}
break;
case AE_CODE_CONTROL:
if (sub_status <= AE_CODE_CTRL_MAX) {
exception = acpi_gbl_exception_names_ctrl [sub_status -1];
}
break;
default:
break;
}
if (!exception) {
/* Exception code was not recognized */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Unknown exception code: 0x%8.8X\n", status));
return ((const char *) "UNKNOWN_STATUS_CODE");
}
return ((const char *) exception);
}
/*******************************************************************************
*
* Static global variable initialization.
*
******************************************************************************/
/*
* We want the debug switches statically initialized so they
* are already set when the debugger is entered.
*/
/* Debug switch - level and trace mask */
u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
EXPORT_SYMBOL(acpi_dbg_level);
/* Debug switch - layer (component) mask */
u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS;
EXPORT_SYMBOL(acpi_dbg_layer);
u32 acpi_gbl_nesting_level = 0;
/* Debugger globals */
u8 acpi_gbl_db_terminate_threads = FALSE;
u8 acpi_gbl_abort_method = FALSE;
u8 acpi_gbl_method_executing = FALSE;
/* System flags */
u32 acpi_gbl_startup_flags = 0;
/* System starts uninitialized */
u8 acpi_gbl_shutdown = TRUE;
const u8 acpi_gbl_decode_to8bit [8] = {1,2,4,8,16,32,64,128};
const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] =
{
"\\_S0_",
"\\_S1_",
"\\_S2_",
"\\_S3_",
"\\_S4_",
"\\_S5_"
};
const char *acpi_gbl_highest_dstate_names[4] =
{
"_S1D",
"_S2D",
"_S3D",
"_S4D"
};
/*
* Strings supported by the _OSI predefined (internal) method.
* When adding strings, be sure to update ACPI_NUM_OSI_STRINGS.
*/
const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] =
{
/* Operating System Vendor Strings */
"Linux",
"Windows 2000",
"Windows 2001",
"Windows 2001.1",
"Windows 2001 SP0",
"Windows 2001 SP1",
"Windows 2001 SP2",
"Windows 2001 SP3",
"Windows 2001 SP4",
/* Feature Group Strings */
"Extended Address Space Descriptor"
};
/*******************************************************************************
*
* Namespace globals
*
******************************************************************************/
/*
* Predefined ACPI Names (Built-in to the Interpreter)
*
* NOTES:
* 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
* during the initialization sequence.
* 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
* perform a Notify() operation on it.
*/
const struct acpi_predefined_names acpi_gbl_pre_defined_names[] =
{ {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
{"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
{"_SB_", ACPI_TYPE_DEVICE, NULL},
{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
{"_TZ_", ACPI_TYPE_THERMAL, NULL},
{"_REV", ACPI_TYPE_INTEGER, (char *) ACPI_CA_SUPPORT_LEVEL},
{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
{"_GL_", ACPI_TYPE_MUTEX, (char *) 1},
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
{"_OSI", ACPI_TYPE_METHOD, (char *) 1},
#endif
/* Table terminator */
{NULL, ACPI_TYPE_ANY, NULL}
};
/*
* Properties of the ACPI Object Types, both internal and external.
* The table is indexed by values of acpi_object_type
*/
const u8 acpi_gbl_ns_properties[] =
{
ACPI_NS_NORMAL, /* 00 Any */
ACPI_NS_NORMAL, /* 01 Number */
ACPI_NS_NORMAL, /* 02 String */
ACPI_NS_NORMAL, /* 03 Buffer */
ACPI_NS_NORMAL, /* 04 Package */
ACPI_NS_NORMAL, /* 05 field_unit */
ACPI_NS_NEWSCOPE, /* 06 Device */
ACPI_NS_NORMAL, /* 07 Event */
ACPI_NS_NEWSCOPE, /* 08 Method */
ACPI_NS_NORMAL, /* 09 Mutex */
ACPI_NS_NORMAL, /* 10 Region */
ACPI_NS_NEWSCOPE, /* 11 Power */
ACPI_NS_NEWSCOPE, /* 12 Processor */
ACPI_NS_NEWSCOPE, /* 13 Thermal */
ACPI_NS_NORMAL, /* 14 buffer_field */
ACPI_NS_NORMAL, /* 15 ddb_handle */
ACPI_NS_NORMAL, /* 16 Debug Object */
ACPI_NS_NORMAL, /* 17 def_field */
ACPI_NS_NORMAL, /* 18 bank_field */
ACPI_NS_NORMAL, /* 19 index_field */
ACPI_NS_NORMAL, /* 20 Reference */
ACPI_NS_NORMAL, /* 21 Alias */
ACPI_NS_NORMAL, /* 22 method_alias */
ACPI_NS_NORMAL, /* 23 Notify */
ACPI_NS_NORMAL, /* 24 Address Handler */
ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
ACPI_NS_NEWSCOPE, /* 27 Scope */
ACPI_NS_NORMAL, /* 28 Extra */
ACPI_NS_NORMAL, /* 29 Data */
ACPI_NS_NORMAL /* 30 Invalid */
};
/* Hex to ASCII conversion table */
static const char acpi_gbl_hex_to_ascii[] =
{
'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'
};
/*******************************************************************************
*
* FUNCTION: acpi_ut_hex_to_ascii_char
*
* PARAMETERS: Integer - Contains the hex digit
* Position - bit position of the digit within the
* integer (multiple of 4)
*
* RETURN: The converted Ascii character
*
* DESCRIPTION: Convert a hex digit to an Ascii character
*
******************************************************************************/
char
acpi_ut_hex_to_ascii_char (
acpi_integer integer,
u32 position)
{
return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
}
/*******************************************************************************
*
* Table name globals
*
* NOTE: This table includes ONLY the ACPI tables that the subsystem consumes.
* it is NOT an exhaustive list of all possible ACPI tables. All ACPI tables
* that are not used by the subsystem are simply ignored.
*
* Do NOT add any table to this list that is not consumed directly by this
* subsystem (No MADT, ECDT, SBST, etc.)
*
******************************************************************************/
struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] =
{
/*********** Name, Signature, Global typed pointer Signature size, Type How many allowed?, Contains valid AML? */
/* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL, sizeof (RSDP_SIG)-1, ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE},
/* DSDT 1 */ {DSDT_SIG, DSDT_SIG, (void *) &acpi_gbl_DSDT, sizeof (DSDT_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE | ACPI_TABLE_EXECUTABLE},
/* FADT 2 */ {FADT_SIG, FADT_SIG, (void *) &acpi_gbl_FADT, sizeof (FADT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_SINGLE},
/* FACS 3 */ {FACS_SIG, FACS_SIG, (void *) &acpi_gbl_FACS, sizeof (FACS_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE},
/* PSDT 4 */ {PSDT_SIG, PSDT_SIG, NULL, sizeof (PSDT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
/* SSDT 5 */ {SSDT_SIG, SSDT_SIG, NULL, sizeof (SSDT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
/* XSDT 6 */ {XSDT_SIG, XSDT_SIG, NULL, sizeof (RSDT_SIG)-1, ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE},
};
/******************************************************************************
*
* Event and Hardware globals
*
******************************************************************************/
struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] =
{
/* Name Parent Register Register Bit Position Register Bit Mask */
/* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_TIMER_STATUS, ACPI_BITMASK_TIMER_STATUS},
/* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_BUS_MASTER_STATUS, ACPI_BITMASK_BUS_MASTER_STATUS},
/* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_STATUS},
/* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_STATUS},
/* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_STATUS},
/* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_STATUS},
/* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_WAKE_STATUS, ACPI_BITMASK_WAKE_STATUS},
/* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, ACPI_BITMASK_PCIEXP_WAKE_STATUS},
/* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_TIMER_ENABLE, ACPI_BITMASK_TIMER_ENABLE},
/* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
/* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_ENABLE},
/* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
/* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_ENABLE},
/* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
/* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
/* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SCI_ENABLE, ACPI_BITMASK_SCI_ENABLE},
/* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_BUS_MASTER_RLD, ACPI_BITMASK_BUS_MASTER_RLD},
/* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
/* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE_X, ACPI_BITMASK_SLEEP_TYPE_X},
/* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE_X, ACPI_BITMASK_SLEEP_TYPE_X},
/* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_ENABLE, ACPI_BITMASK_SLEEP_ENABLE},
/* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, ACPI_BITPOSITION_ARB_DISABLE, ACPI_BITMASK_ARB_DISABLE}
};
struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
{
/* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, ACPI_BITREG_TIMER_ENABLE, ACPI_BITMASK_TIMER_STATUS, ACPI_BITMASK_TIMER_ENABLE},
/* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, ACPI_BITREG_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
/* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_ENABLE},
/* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
/* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, ACPI_BITREG_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_ENABLE},
};
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_region_name
*
* PARAMETERS: None.
*
* RETURN: Status
*
* DESCRIPTION: Translate a Space ID into a name string (Debug only)
*
******************************************************************************/
/* Region type decoding */
const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] =
{
/*! [Begin] no source code translation (keep these ASL Keywords as-is) */
"SystemMemory",
"SystemIO",
"PCI_Config",
"EmbeddedControl",
"SMBus",
"CMOS",
"PCIBARTarget",
"DataTable"
/*! [End] no source code translation !*/
};
char *
acpi_ut_get_region_name (
u8 space_id)
{
if (space_id >= ACPI_USER_REGION_BEGIN)
{
return ("user_defined_region");
}
else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS)
{
return ("invalid_space_id");
}
return ((char *) acpi_gbl_region_types[space_id]);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_event_name
*
* PARAMETERS: None.
*
* RETURN: Status
*
* DESCRIPTION: Translate a Event ID into a name string (Debug only)
*
******************************************************************************/
/* Event type decoding */
static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] =
{
"PM_Timer",
"global_lock",
"power_button",
"sleep_button",
"real_time_clock",
};
char *
acpi_ut_get_event_name (
u32 event_id)
{
if (event_id > ACPI_EVENT_MAX)
{
return ("invalid_event_iD");
}
return ((char *) acpi_gbl_event_types[event_id]);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_type_name
*
* PARAMETERS: None.
*
* RETURN: Status
*
* DESCRIPTION: Translate a Type ID into a name string (Debug only)
*
******************************************************************************/
/*
* Elements of acpi_gbl_ns_type_names below must match
* one-to-one with values of acpi_object_type
*
* The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
* when stored in a table it really means that we have thus far seen no
* evidence to indicate what type is actually going to be stored for this entry.
*/
static const char acpi_gbl_bad_type[] = "UNDEFINED";
/* Printable names of the ACPI object types */
static const char *acpi_gbl_ns_type_names[] =
{
/* 00 */ "Untyped",
/* 01 */ "Integer",
/* 02 */ "String",
/* 03 */ "Buffer",
/* 04 */ "Package",
/* 05 */ "field_unit",
/* 06 */ "Device",
/* 07 */ "Event",
/* 08 */ "Method",
/* 09 */ "Mutex",
/* 10 */ "Region",
/* 11 */ "Power",
/* 12 */ "Processor",
/* 13 */ "Thermal",
/* 14 */ "buffer_field",
/* 15 */ "ddb_handle",
/* 16 */ "debug_object",
/* 17 */ "region_field",
/* 18 */ "bank_field",
/* 19 */ "index_field",
/* 20 */ "Reference",
/* 21 */ "Alias",
/* 22 */ "method_alias",
/* 23 */ "Notify",
/* 24 */ "addr_handler",
/* 25 */ "resource_desc",
/* 26 */ "resource_fld",
/* 27 */ "Scope",
/* 28 */ "Extra",
/* 29 */ "Data",
/* 30 */ "Invalid"
};
char *
acpi_ut_get_type_name (
acpi_object_type type)
{
if (type > ACPI_TYPE_INVALID)
{
return ((char *) acpi_gbl_bad_type);
}
return ((char *) acpi_gbl_ns_type_names[type]);
}
char *
acpi_ut_get_object_type_name (
union acpi_operand_object *obj_desc)
{
if (!obj_desc)
{
return ("[NULL Object Descriptor]");
}
return (acpi_ut_get_type_name (ACPI_GET_OBJECT_TYPE (obj_desc)));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_node_name
*
* PARAMETERS: Object - A namespace node
*
* RETURN: Pointer to a string
*
* DESCRIPTION: Validate the node and return the node's ACPI name.
*
******************************************************************************/
char *
acpi_ut_get_node_name (
void *object)
{
struct acpi_namespace_node *node = (struct acpi_namespace_node *) object;
/* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
if (!object)
{
return ("NULL");
}
/* Check for Root node */
if ((object == ACPI_ROOT_OBJECT) ||
(object == acpi_gbl_root_node))
{
return ("\"\\\" ");
}
/* Descriptor must be a namespace node */
if (node->descriptor != ACPI_DESC_TYPE_NAMED)
{
return ("####");
}
/* Name must be a valid ACPI name */
if (!acpi_ut_valid_acpi_name (* (u32 *) node->name.ascii))
{
return ("????");
}
/* Return the name */
return (node->name.ascii);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_descriptor_name
*
* PARAMETERS: Object - An ACPI object
*
* RETURN: Pointer to a string
*
* DESCRIPTION: Validate object and return the descriptor type
*
******************************************************************************/
/* Printable names of object descriptor types */
static const char *acpi_gbl_desc_type_names[] =
{
/* 00 */ "Invalid",
/* 01 */ "Cached",
/* 02 */ "State-Generic",
/* 03 */ "State-Update",
/* 04 */ "State-Package",
/* 05 */ "State-Control",
/* 06 */ "State-root_parse_scope",
/* 07 */ "State-parse_scope",
/* 08 */ "State-walk_scope",
/* 09 */ "State-Result",
/* 10 */ "State-Notify",
/* 11 */ "State-Thread",
/* 12 */ "Walk",
/* 13 */ "Parser",
/* 14 */ "Operand",
/* 15 */ "Node"
};
char *
acpi_ut_get_descriptor_name (
void *object)
{
if (!object)
{
return ("NULL OBJECT");
}
if (ACPI_GET_DESCRIPTOR_TYPE (object) > ACPI_DESC_TYPE_MAX)
{
return ((char *) acpi_gbl_bad_type);
}
return ((char *) acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE (object)]);
}
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
/*
* Strings and procedures used for debug only
*/
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_mutex_name
*
* PARAMETERS: mutex_id - The predefined ID for this mutex.
*
* RETURN: String containing the name of the mutex. Always returns a valid
* pointer.
*
* DESCRIPTION: Translate a mutex ID into a name string (Debug only)
*
******************************************************************************/
char *
acpi_ut_get_mutex_name (
u32 mutex_id)
{
if (mutex_id > MAX_MUTEX)
{
return ("Invalid Mutex ID");
}
return (acpi_gbl_mutex_names[mutex_id]);
}
#endif
/*******************************************************************************
*
* FUNCTION: acpi_ut_valid_object_type
*
* PARAMETERS: Type - Object type to be validated
*
* RETURN: TRUE if valid object type, FALSE otherwise
*
* DESCRIPTION: Validate an object type
*
******************************************************************************/
u8
acpi_ut_valid_object_type (
acpi_object_type type)
{
if (type > ACPI_TYPE_LOCAL_MAX)
{
/* Note: Assumes all TYPEs are contiguous (external/local) */
return (FALSE);
}
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_allocate_owner_id
*
* PARAMETERS: id_type - Type of ID (method or table)
*
* DESCRIPTION: Allocate a table or method owner id
*
* NOTE: this algorithm has a wraparound problem at 64_k method invocations, and
* should be revisited (TBD)
*
******************************************************************************/
acpi_owner_id
acpi_ut_allocate_owner_id (
u32 id_type)
{
acpi_owner_id owner_id = 0xFFFF;
ACPI_FUNCTION_TRACE ("ut_allocate_owner_id");
if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES)))
{
return (0);
}
switch (id_type)
{
case ACPI_OWNER_TYPE_TABLE:
owner_id = acpi_gbl_next_table_owner_id;
acpi_gbl_next_table_owner_id++;
/* Check for wraparound */
if (acpi_gbl_next_table_owner_id == ACPI_FIRST_METHOD_ID)
{
acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
ACPI_REPORT_WARNING (("Table owner ID wraparound\n"));
}
break;
case ACPI_OWNER_TYPE_METHOD:
owner_id = acpi_gbl_next_method_owner_id;
acpi_gbl_next_method_owner_id++;
if (acpi_gbl_next_method_owner_id == ACPI_FIRST_TABLE_ID)
{
/* Check for wraparound */
acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
}
break;
default:
break;
}
(void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
return_VALUE (owner_id);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_init_globals
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Init library globals. All globals that require specific
* initialization should be initialized here!
*
******************************************************************************/
void
acpi_ut_init_globals (
void)
{
acpi_status status;
u32 i;
ACPI_FUNCTION_TRACE ("ut_init_globals");
/* Create all memory caches */
status = acpi_ut_create_caches ();
if (ACPI_FAILURE (status))
{
return;
}
/* ACPI table structure */
for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++)
{
acpi_gbl_table_lists[i].next = NULL;
acpi_gbl_table_lists[i].count = 0;
}
/* Mutex locked flags */
for (i = 0; i < NUM_MUTEX; i++)
{
acpi_gbl_mutex_info[i].mutex = NULL;
acpi_gbl_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
acpi_gbl_mutex_info[i].use_count = 0;
}
/* GPE support */
acpi_gbl_gpe_xrupt_list_head = NULL;
acpi_gbl_gpe_fadt_blocks[0] = NULL;
acpi_gbl_gpe_fadt_blocks[1] = NULL;
/* Global notify handlers */
acpi_gbl_system_notify.handler = NULL;
acpi_gbl_device_notify.handler = NULL;
acpi_gbl_exception_handler = NULL;
acpi_gbl_init_handler = NULL;
/* Global "typed" ACPI table pointers */
acpi_gbl_RSDP = NULL;
acpi_gbl_XSDT = NULL;
acpi_gbl_FACS = NULL;
acpi_gbl_FADT = NULL;
acpi_gbl_DSDT = NULL;
/* Global Lock support */
acpi_gbl_global_lock_acquired = FALSE;
acpi_gbl_global_lock_thread_count = 0;
acpi_gbl_global_lock_handle = 0;
/* Miscellaneous variables */
acpi_gbl_table_flags = ACPI_PHYSICAL_POINTER;
acpi_gbl_rsdp_original_location = 0;
acpi_gbl_cm_single_step = FALSE;
acpi_gbl_db_terminate_threads = FALSE;
acpi_gbl_shutdown = FALSE;
acpi_gbl_ns_lookup_count = 0;
acpi_gbl_ps_find_count = 0;
acpi_gbl_acpi_hardware_present = TRUE;
acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
/* Hardware oriented */
acpi_gbl_events_initialized = FALSE;
acpi_gbl_system_awake_and_running = TRUE;
/* Namespace */
acpi_gbl_root_node = NULL;
acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
acpi_gbl_root_node_struct.child = NULL;
acpi_gbl_root_node_struct.peer = NULL;
acpi_gbl_root_node_struct.object = NULL;
acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
#ifdef ACPI_DEBUG_OUTPUT
acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;
#endif
return_VOID;
}
