kernel-ark/drivers/acpi/utilities/utglobal.c
Bob Moore 967440e3be ACPI: ACPICA 20060623
Implemented a new acpi_spinlock type for the OSL lock
interfaces.  This allows the type to be customized to
the host OS for improved efficiency (since a spinlock is
usually a very small object.)

Implemented support for "ignored" bits in the ACPI
registers.  According to the ACPI specification, these
bits should be preserved when writing the registers via
a read/modify/write cycle. There are 3 bits preserved
in this manner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9],
and PM1_STATUS[11].
http://bugzilla.kernel.org/show_bug.cgi?id=3691

Implemented the initial deployment of new OSL mutex
interfaces.  Since some host operating systems have
separate mutex and semaphore objects, this feature was
requested. The base code now uses mutexes (and the new
mutex interfaces) wherever a binary semaphore was used
previously. However, for the current release, the mutex
interfaces are defined as macros to map them to the
existing semaphore interfaces.

Fixed several problems with the support for the control
method SyncLevel parameter. The SyncLevel now works
according to the ACPI specification and in concert with the
Mutex SyncLevel parameter, since the current SyncLevel is
a property of the executing thread. Mutual exclusion for
control methods is now implemented with a mutex instead
of a semaphore.

Fixed three instances of the use of the C shift operator
in the bitfield support code (exfldio.c) to avoid the use
of a shift value larger than the target data width. The
behavior of C compilers is undefined in this case and can
cause unpredictable results, and therefore the case must
be detected and avoided.  (Fiodor Suietov)

Added an info message whenever an SSDT or OEM table
is loaded dynamically via the Load() or LoadTable()
ASL operators. This should improve debugging capability
since it will show exactly what tables have been loaded
(beyond the tables present in the RSDT/XSDT.)

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-06-28 03:11:38 -04:00

845 lines
24 KiB
C

/******************************************************************************
*
* Module Name: utglobal - Global variables for the ACPI subsystem
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2006, 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 <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_ENTRY();
/*
* Status is composed of two parts, a "type" and an actual code
*/
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_ERROR((AE_INFO,
"Unknown exception code: 0x%8.8X", status));
exception = "UNKNOWN_STATUS_CODE";
}
return (ACPI_CAST_PTR(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;
/* Debug switch - layer (component) mask */
u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS;
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"
};
/*******************************************************************************
*
* 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[ACPI_TABLE_ID_MAX + 1];
struct acpi_table_support acpi_gbl_table_data[ACPI_TABLE_ID_MAX + 1] = {
/*********** 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] = {
"SystemMemory",
"SystemIO",
"PCI_Config",
"EmbeddedControl",
"SMBus",
"CMOS",
"PCIBARTarget",
"DataTable"
};
char *acpi_ut_get_region_name(u8 space_id)
{
if (space_id >= ACPI_USER_REGION_BEGIN) {
return ("UserDefinedRegion");
} else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
return ("InvalidSpaceId");
}
return (ACPI_CAST_PTR(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",
"GlobalLock",
"PowerButton",
"SleepButton",
"RealTimeClock",
};
char *acpi_ut_get_event_name(u32 event_id)
{
if (event_id > ACPI_EVENT_MAX) {
return ("InvalidEventID");
}
return (ACPI_CAST_PTR(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 */ "FieldUnit",
/* 06 */ "Device",
/* 07 */ "Event",
/* 08 */ "Method",
/* 09 */ "Mutex",
/* 10 */ "Region",
/* 11 */ "Power",
/* 12 */ "Processor",
/* 13 */ "Thermal",
/* 14 */ "BufferField",
/* 15 */ "DdbHandle",
/* 16 */ "DebugObject",
/* 17 */ "RegionField",
/* 18 */ "BankField",
/* 19 */ "IndexField",
/* 20 */ "Reference",
/* 21 */ "Alias",
/* 22 */ "MethodAlias",
/* 23 */ "Notify",
/* 24 */ "AddrHandler",
/* 25 */ "ResourceDesc",
/* 26 */ "ResourceFld",
/* 27 */ "Scope",
/* 28 */ "Extra",
/* 29 */ "Data",
/* 30 */ "Invalid"
};
char *acpi_ut_get_type_name(acpi_object_type type)
{
if (type > ACPI_TYPE_INVALID) {
return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
}
return (ACPI_CAST_PTR(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 (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
return ("####");
}
/* Name must be a valid ACPI name */
if (!acpi_ut_valid_acpi_name(node->name.integer)) {
node->name.integer = acpi_ut_repair_name(node->name.integer);
}
/* 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-RootParseScope",
/* 07 */ "State-ParseScope",
/* 08 */ "State-WalkScope",
/* 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 (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
}
return (ACPI_CAST_PTR(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 > ACPI_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_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 < (ACPI_TABLE_ID_MAX + 1); i++) {
acpi_gbl_table_lists[i].next = NULL;
acpi_gbl_table_lists[i].count = 0;
}
/* Mutex locked flags */
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
acpi_gbl_mutex_info[i].mutex = NULL;
acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
acpi_gbl_mutex_info[i].use_count = 0;
}
for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
acpi_gbl_owner_id_mask[i] = 0;
}
acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
/* 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_semaphore = NULL;
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_last_owner_id_index = 0;
acpi_gbl_next_owner_id_offset = 0;
acpi_gbl_trace_method_name = 0;
acpi_gbl_trace_dbg_level = 0;
acpi_gbl_trace_dbg_layer = 0;
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_type = 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;
}
ACPI_EXPORT_SYMBOL(acpi_dbg_level)
ACPI_EXPORT_SYMBOL(acpi_dbg_layer)