mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
524 lines
14 KiB
524 lines
14 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
|
/****************************************************************************** |
|
* |
|
* Module Name: utxface - External interfaces, miscellaneous utility functions |
|
* |
|
* Copyright (C) 2000 - 2021, 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 second function is added, must save the Function also. |
|
* |
|
****************************************************************************/ |
|
acpi_status |
|
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 |
|
* |
|
* RETURN: 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 = AE_OK; |
|
} 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 (status); |
|
} |
|
|
|
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(action); |
|
|
|
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 to an ACPI driver. |
|
* |
|
******************************************************************************/ |
|
acpi_status |
|
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)
|
|
|