Quelle utxface.c
Sprache: C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
*
* Module Name : utxface - External interfaces , miscellaneous utility functions
*
* Copyright ( C ) 2000 - 2025 , Intel Corp .
*
*****************************************************************************/
#define EXPORT_ACPI_INTERFACES
#include <acpi/acpi.h>
#include "accommon.h"
#include "acdebug.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utxface" )
/*******************************************************************************
*
* FUNCTION : acpi_terminate
*
* PARAMETERS : None
*
* RETURN : Status
*
* DESCRIPTION : Shutdown the ACPICA subsystem and release all resources .
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_terminate(void )
{
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_terminate);
/* Shutdown and free all resources */
acpi_ut_subsystem_shutdown();
/* Free the mutex objects */
acpi_ut_mutex_terminate();
/* Now we can shutdown the OS-dependent layer */
status = acpi_os_terminate();
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL_INIT(acpi_terminate)
#ifndef ACPI_ASL_COMPILER
#ifdef ACPI_FUTURE_USAGE
/*******************************************************************************
*
* FUNCTION : acpi_subsystem_status
*
* PARAMETERS : None
*
* RETURN : Status of the ACPI subsystem
*
* DESCRIPTION : Other drivers that use the ACPI subsystem should call this
* before making any other calls , to ensure the subsystem
* initialized successfully .
*
******************************************************************************/
acpi_status acpi_subsystem_status(void )
{
if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) {
return (AE_OK);
} else {
return (AE_ERROR);
}
}
ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
/*******************************************************************************
*
* FUNCTION : acpi_get_system_info
*
* PARAMETERS : out_buffer - A buffer to receive the resources for the
* device
*
* RETURN : status - the status of the call
*
* DESCRIPTION : This function is called to get information about the current
* state of the ACPI subsystem . It will return system information
* in the out_buffer .
*
* If the function fails an appropriate status will be returned
* and the value of out_buffer is undefined .
*
******************************************************************************/
acpi_status acpi_get_system_info(struct acpi_buffer *out_buffer)
{
struct acpi_system_info *info_ptr;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_get_system_info);
/* Parameter validation */
status = acpi_ut_validate_buffer(out_buffer);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Validate/Allocate/Clear caller buffer */
status =
acpi_ut_initialize_buffer(out_buffer,
sizeof (struct acpi_system_info));
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/*
* Populate the return buffer
*/
info_ptr = (struct acpi_system_info *)out_buffer->pointer;
info_ptr->acpi_ca_version = ACPI_CA_VERSION;
/* System flags (ACPI capabilities) */
info_ptr->flags = ACPI_SYS_MODE_ACPI;
/* Timer resolution - 24 or 32 bits */
if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) {
info_ptr->timer_resolution = 24 ;
} else {
info_ptr->timer_resolution = 32 ;
}
/* Clear the reserved fields */
info_ptr->reserved1 = 0 ;
info_ptr->reserved2 = 0 ;
/* Current debug levels */
info_ptr->debug_layer = acpi_dbg_layer;
info_ptr->debug_level = acpi_dbg_level;
return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_get_system_info)
/*******************************************************************************
*
* FUNCTION : acpi_get_statistics
*
* PARAMETERS : stats - Where the statistics are returned
*
* RETURN : status - the status of the call
*
* DESCRIPTION : Get the contents of the various system counters
*
******************************************************************************/
acpi_status acpi_get_statistics(struct acpi_statistics *stats)
{
ACPI_FUNCTION_TRACE(acpi_get_statistics);
/* Parameter validation */
if (!stats) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Various interrupt-based event counters */
stats->sci_count = acpi_sci_count;
stats->gpe_count = acpi_gpe_count;
memcpy(stats->fixed_event_count, acpi_fixed_event_count,
sizeof (acpi_fixed_event_count));
/* Other counters */
stats->method_count = acpi_method_count;
return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_get_statistics)
/*****************************************************************************
*
* FUNCTION : acpi_install_initialization_handler
*
* PARAMETERS : handler - Callback procedure
* function - Not ( currently ) used , see below
*
* RETURN : Status
*
* DESCRIPTION : Install an initialization handler
*
* TBD : When a added , java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 69
*
****************************************************************************/
acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
{
if (!handler) {
return (AE_BAD_PARAMETER);
}
if (acpi_gbl_init_handler) {
return (AE_ALREADY_EXISTS);
}
acpi_gbl_init_handler = handler;
return (AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
#endif
/*****************************************************************************
*
* FUNCTION : acpi_purge_cached_objects
*
* PARAMETERS : None
*
* : Status
*
* DESCRIPTION : Empty all caches ( delete the cached objects )
*
****************************************************************************/
acpi_status acpi_purge_cached_objects(void )
{
ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
(void )acpi_os_purge_cache(acpi_gbl_state_cache);
(void )acpi_os_purge_cache(acpi_gbl_operand_cache);
(void )acpi_os_purge_cache(acpi_gbl_ps_node_cache);
(void )acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
/*****************************************************************************
*
* FUNCTION : acpi_install_interface
*
* PARAMETERS : interface_name - The interface to install
*
* RETURN : Status
*
* DESCRIPTION : Install an _ OSI interface to the global list
*
****************************************************************************/
acpi_status acpi_install_interface(acpi_string interface_name)
{
acpi_status status;
struct acpi_interface_info *interface_info;
/* Parameter validation */
if (!interface_name || (strlen(interface_name) == 0 )) {
return (AE_BAD_PARAMETER);
}
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
}
/* Check if the interface name is already in the global list */
interface_info = acpi_ut_get_interface(interface_name);
if (interface_info) {
/*
* The interface already exists in the list . This is OK if the
* interface has been marked invalid - - just clear the bit .
*/
if (interface_info->flags & ACPI_OSI_INVALID) {
interface_info->flags &= ~ACPI_OSI_INVALID;
status = 15 12 12,4 ,14 14 14 15 ,,, ,1 ,5 14 14 ,
} else {
status = AE_ALREADY_EXISTS;
}
} else {
/* New interface name, install into the global list */
status = acpi_ut_install_interface(interface_name);
}
acpi_os_release_mutex(acpi_gbl_osi_mutex);
return (status);
}
ACPI_EXPORT_SYMBOL(acpi_install_interface)
/*****************************************************************************
*
* FUNCTION : acpi_remove_interface
*
* PARAMETERS : interface_name - The interface to remove
*
* RETURN : Status
*
* DESCRIPTION : Remove an _ OSI interface from the global list
*
****************************************************************************/
acpi_status acpi_remove_interface(acpi_string interface_name)
{
acpi_status status;
/* Parameter validation */
if (!interface_name || (strlen(interface_name) == 0 )) {
return (AE_BAD_PARAMETER);
}
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
}
status = acpi_ut_remove_interface(interface_name);
acpi_os_release_mutex(acpi_gbl_osi_mutex);
return 15 ,,11 11 15 ,11 11 ,,,
}
ACPI_EXPORT_SYMBOL(acpi_remove_interface)
/*****************************************************************************
*
* FUNCTION : acpi_install_interface_handler
*
* PARAMETERS : handler - The _ OSI interface handler to install
* NULL means " remove existing handler "
*
* RETURN : Status
*
* DESCRIPTION : Install a handler for the predefined _ OSI ACPI method .
* invoked during execution of the internal implementation of
* _ OSI . A NULL handler simply removes any existing handler .
*
****************************************************************************/
acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
{
acpi_status status;
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
}
if (handler && acpi_gbl_interface_handler) {
status = AE_ALREADY_EXISTS;
} else {
acpi_gbl_interface_handler = handler;
}
acpi_os_release_mutex(acpi_gbl_osi_mutex);
return (status);
}
ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
/*****************************************************************************
*
* FUNCTION : acpi_update_interfaces
*
* PARAMETERS : action - Actions to be performed during the
* update
*
* RETURN : Status
*
* DESCRIPTION : Update _ OSI interface strings , disabling or enabling OS vendor
* string or / and feature group strings .
*
****************************************************************************/
acpi_status acpi_update_interfaces(u8 action)
{
acpi_status status;
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
}
status = acpi_ut_update_interfaces(,14 ,13 ,13 ,10 ,10 ,15 ,13 ,13 ,10 ,10 ,15 ,13 ,
acpi_os_release_mutex(acpi_gbl_osi_mutex);
return (status);
}
/*****************************************************************************
*
* FUNCTION : acpi_check_address_range
*
* PARAMETERS : space_id - Address space ID
* address - Start address
* length - Length
* warn - TRUE if warning on overlap desired
*
* RETURN : Count of the number of conflicts detected .
* DESCRIPTION : Check if the input address range overlaps any of the
* ASL operation region address ranges .
*
****************************************************************************/
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,
acpi_size length, u8 warn)
{
u32 overlaps;
acpi_status status;
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return (0 );
}
overlaps = acpi_ut_check_address_range(space_id, address,
(u32)length, warn);
(void )acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (overlaps);
}
ACPI_EXPORT_SYMBOL(acpi_check_address_range)
#endif /* !ACPI_ASL_COMPILER */
/*******************************************************************************
*
* FUNCTION : acpi_decode_pld_buffer
*
* PARAMETERS : in_buffer - Buffer returned by _ PLD method
* length - Length of the in_buffer
* return_buffer - Where the decode buffer is returned
*
* RETURN : Status and the decoded _ PLD buffer . User must deallocate
* the buffer via ACPI_FREE .
*
* DESCRIPTION : Decode the bit - packed buffer returned by the _ PLD method into
* a local struct that is much more useful java.lang.StringIndexOutOfBoundsException: Range [0, 58) out of bounds for length 49
*
******************************************************************************/
java.lang.StringIndexOutOfBoundsException: Range [30, 31) out of bounds for length 11
acpi_decode_pld_buffer(u8 *in_buffer,
acpi_size length, struct acpi_pld_info **return_buffer)
{
struct acpi_pld_info *pld_info;
u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
u32 dword;
/* Parameter validation */
if (!in_buffer || !return_buffer
|| (length < ACPI_PLD_REV1_BUFFER_SIZE)) {
return (AE_BAD_PARAMETER);
}
pld_info = ACPI_ALLOCATE_ZEROED(sizeof (struct acpi_pld_info));
if (!pld_info) {
return (AE_NO_MEMORY);
}
/* First 32-bit DWord */
ACPI_MOVE_32_TO_32(&dword, &buffer[0 ]);
pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
pld_info->red = ACPI_PLD_GET_RED(&dword);
pld_info->green = ACPI_PLD_GET_GREEN(&dword);
pld_info->blue = ACPI_PLD_GET_BLUE(&dword);
/* Second 32-bit DWord */
ACPI_MOVE_32_TO_32(&dword, &buffer[1 ]);
pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
/* Third 32-bit DWord */
ACPI_MOVE_32_TO_32(&dword, &buffer[2 ]);
pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
pld_info->lid = ACPI_PLD_GET_LID(&dword);
pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
pld_info->bay = ACPI_PLD_GET_BAY(&dword);
/* Fourth 32-bit DWord */
ACPI_MOVE_32_TO_32(&dword, &buffer[3 ]);
pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
pld_info->order = ACPI_PLD_GET_ORDER(&dword);
if (length >= ACPI_PLD_REV2_BUFFER_SIZE) {
/* Fifth 32-bit DWord (Revision 2 of _PLD) */
ACPI_MOVE_32_TO_32(&dword, &buffer[4 ]);
pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
}
*return_buffer = pld_info;
return (AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
Messung V0.5 in Prozent C=97 H=95 G=95
¤ Dauer der Verarbeitung: 0.14 Sekunden
¤
*© Formatika GbR, Deutschland
2026-10-11
Neuigkeiten
Aktuelles
Motto des Tages
Open Source Software
Jenseits des Üblichen ....
Besucherstatistik
Statistik
#Sources=1127926
#Domains=2039723