195857638SErik Schmauss /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2e2f7a777SLen Brown /****************************************************************************** 3e2f7a777SLen Brown * 4e2f7a777SLen Brown * Name: acobject.h - Definition of union acpi_operand_object (Internal object only) 5e2f7a777SLen Brown * 6*612c2932SBob Moore * Copyright (C) 2000 - 2023, Intel Corp. 7e2f7a777SLen Brown * 895857638SErik Schmauss *****************************************************************************/ 9e2f7a777SLen Brown 10e2f7a777SLen Brown #ifndef _ACOBJECT_H 11e2f7a777SLen Brown #define _ACOBJECT_H 12e2f7a777SLen Brown 13e2f7a777SLen Brown /* acpisrc:struct_defs -- for acpisrc conversion */ 14e2f7a777SLen Brown 15e2f7a777SLen Brown /* 16e2f7a777SLen Brown * The union acpi_operand_object is used to pass AML operands from the dispatcher 17e2f7a777SLen Brown * to the interpreter, and to keep track of the various handlers such as 18e2f7a777SLen Brown * address space handlers and notify handlers. The object is a constant 19e2f7a777SLen Brown * size in order to allow it to be cached and reused. 20e2f7a777SLen Brown * 21e2f7a777SLen Brown * Note: The object is optimized to be aligned and will not work if it is 22e2f7a777SLen Brown * byte-packed. 23e2f7a777SLen Brown */ 24e2f7a777SLen Brown #if ACPI_MACHINE_WIDTH == 64 25e2f7a777SLen Brown #pragma pack(8) 26e2f7a777SLen Brown #else 27e2f7a777SLen Brown #pragma pack(4) 28e2f7a777SLen Brown #endif 29e2f7a777SLen Brown 30e2f7a777SLen Brown /******************************************************************************* 31e2f7a777SLen Brown * 32e2f7a777SLen Brown * Common Descriptors 33e2f7a777SLen Brown * 34e2f7a777SLen Brown ******************************************************************************/ 35e2f7a777SLen Brown 36e2f7a777SLen Brown /* 37e2f7a777SLen Brown * Common area for all objects. 38e2f7a777SLen Brown * 39e2f7a777SLen Brown * descriptor_type is used to differentiate between internal descriptors, and 40e2f7a777SLen Brown * must be in the same place across all descriptors 41e2f7a777SLen Brown * 42e2f7a777SLen Brown * Note: The descriptor_type and Type fields must appear in the identical 43e2f7a777SLen Brown * position in both the struct acpi_namespace_node and union acpi_operand_object 44e2f7a777SLen Brown * structures. 45e2f7a777SLen Brown */ 46e2f7a777SLen Brown #define ACPI_OBJECT_COMMON_HEADER \ 47e2f7a777SLen Brown union acpi_operand_object *next_object; /* Objects linked to parent NS node */\ 48e2f7a777SLen Brown u8 descriptor_type; /* To differentiate various internal objs */\ 49e2f7a777SLen Brown u8 type; /* acpi_object_type */\ 50e2f7a777SLen Brown u16 reference_count; /* For object deletion management */\ 51e2f7a777SLen Brown u8 flags; 52e2f7a777SLen Brown /* 53e2f7a777SLen Brown * Note: There are 3 bytes available here before the 54e2f7a777SLen Brown * next natural alignment boundary (for both 32/64 cases) 55e2f7a777SLen Brown */ 56e2f7a777SLen Brown 57e2f7a777SLen Brown /* Values for Flag byte above */ 58e2f7a777SLen Brown 5920d33aeaSBob Moore #define AOPOBJ_AML_CONSTANT 0x01 /* Integer is an AML constant */ 6020d33aeaSBob Moore #define AOPOBJ_STATIC_POINTER 0x02 /* Data is part of an ACPI table, don't delete */ 61b595076aSUwe Kleine-König #define AOPOBJ_DATA_VALID 0x04 /* Object is initialized and data is valid */ 62efaed9beSLv Zheng #define AOPOBJ_OBJECT_INITIALIZED 0x08 /* Region is initialized */ 63efaed9beSLv Zheng #define AOPOBJ_REG_CONNECTED 0x10 /* _REG was run */ 64efaed9beSLv Zheng #define AOPOBJ_SETUP_COMPLETE 0x20 /* Region setup is complete */ 65efaed9beSLv Zheng #define AOPOBJ_INVALID 0x40 /* Host OS won't allow a Region address */ 66e2f7a777SLen Brown 67e2f7a777SLen Brown /****************************************************************************** 68e2f7a777SLen Brown * 69e2f7a777SLen Brown * Basic data types 70e2f7a777SLen Brown * 71e2f7a777SLen Brown *****************************************************************************/ 72e2f7a777SLen Brown 73e2f7a777SLen Brown struct acpi_object_common { 74e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER}; 75e2f7a777SLen Brown 76e2f7a777SLen Brown struct acpi_object_integer { 77e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER u8 fill[3]; /* Prevent warning on some compilers */ 785df7e6cbSBob Moore u64 value; 79e2f7a777SLen Brown }; 80e2f7a777SLen Brown 81e2f7a777SLen Brown /* 82cf48958eSBob Moore * Note: The String and Buffer object must be identical through the 83cf48958eSBob Moore * pointer and length elements. There is code that depends on this. 84e2f7a777SLen Brown * 85e2f7a777SLen Brown * Fields common to both Strings and Buffers 86e2f7a777SLen Brown */ 87e2f7a777SLen Brown #define ACPI_COMMON_BUFFER_INFO(_type) \ 88e2f7a777SLen Brown _type *pointer; \ 89e2f7a777SLen Brown u32 length; 90e2f7a777SLen Brown 917679c35dSLv Zheng /* Null terminated, ASCII characters only */ 927679c35dSLv Zheng 937679c35dSLv Zheng struct acpi_object_string { 94e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(char) /* String in AML stream or allocated string */ 95e2f7a777SLen Brown }; 96e2f7a777SLen Brown 97e2f7a777SLen Brown struct acpi_object_buffer { 98e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_BUFFER_INFO(u8) /* Buffer in AML stream or allocated buffer */ 99e2f7a777SLen Brown u32 aml_length; 100e2f7a777SLen Brown u8 *aml_start; 101e2f7a777SLen Brown struct acpi_namespace_node *node; /* Link back to parent node */ 102e2f7a777SLen Brown }; 103e2f7a777SLen Brown 104e2f7a777SLen Brown struct acpi_object_package { 105e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Link back to parent node */ 106e2f7a777SLen Brown union acpi_operand_object **elements; /* Array of pointers to acpi_objects */ 107e2f7a777SLen Brown u8 *aml_start; 108e2f7a777SLen Brown u32 aml_length; 109e2f7a777SLen Brown u32 count; /* # of elements in package */ 110e2f7a777SLen Brown }; 111e2f7a777SLen Brown 112e2f7a777SLen Brown /****************************************************************************** 113e2f7a777SLen Brown * 114e2f7a777SLen Brown * Complex data types 115e2f7a777SLen Brown * 116e2f7a777SLen Brown *****************************************************************************/ 117e2f7a777SLen Brown 118e2f7a777SLen Brown struct acpi_object_event { 119e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER acpi_semaphore os_semaphore; /* Actual OS synchronization object */ 120e2f7a777SLen Brown }; 121e2f7a777SLen Brown 122e2f7a777SLen Brown struct acpi_object_mutex { 123e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER u8 sync_level; /* 0-15, specified in Mutex() call */ 124e2f7a777SLen Brown u16 acquisition_depth; /* Allow multiple Acquires, same thread */ 125e2f7a777SLen Brown acpi_mutex os_mutex; /* Actual OS synchronization object */ 126e2f7a777SLen Brown acpi_thread_id thread_id; /* Current owner of the mutex */ 127e2f7a777SLen Brown struct acpi_thread_state *owner_thread; /* Current owner of the mutex */ 128e2f7a777SLen Brown union acpi_operand_object *prev; /* Link for list of acquired mutexes */ 129e2f7a777SLen Brown union acpi_operand_object *next; /* Link for list of acquired mutexes */ 130e2f7a777SLen Brown struct acpi_namespace_node *node; /* Containing namespace node */ 131e2f7a777SLen Brown u8 original_sync_level; /* Owner's original sync level (0-15) */ 132e2f7a777SLen Brown }; 133e2f7a777SLen Brown 134e2f7a777SLen Brown struct acpi_object_region { 135e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER u8 space_id; 136e2f7a777SLen Brown struct acpi_namespace_node *node; /* Containing namespace node */ 137e2f7a777SLen Brown union acpi_operand_object *handler; /* Handler for region access */ 138e2f7a777SLen Brown union acpi_operand_object *next; 139e2f7a777SLen Brown acpi_physical_address address; 140e2f7a777SLen Brown u32 length; 141ca25f92bSJessica Clarke void *pointer; /* Only for data table regions */ 142e2f7a777SLen Brown }; 143e2f7a777SLen Brown 144e2f7a777SLen Brown struct acpi_object_method { 14526294842SLin Ming ACPI_OBJECT_COMMON_HEADER u8 info_flags; 146e2f7a777SLen Brown u8 param_count; 147e2f7a777SLen Brown u8 sync_level; 148e2f7a777SLen Brown union acpi_operand_object *mutex; 14907b9c912SLv Zheng union acpi_operand_object *node; 150e2f7a777SLen Brown u8 *aml_start; 151e31c32cfSLin Ming union { 152644ef74eSLv Zheng acpi_internal_method implementation; 153e31c32cfSLin Ming union acpi_operand_object *handler; 15426294842SLin Ming } dispatch; 155e31c32cfSLin Ming 156e2f7a777SLen Brown u32 aml_length; 157e2f7a777SLen Brown acpi_owner_id owner_id; 15867a72420SBob Moore u8 thread_count; 159e2f7a777SLen Brown }; 160e2f7a777SLen Brown 16126294842SLin Ming /* Flags for info_flags field above */ 16226294842SLin Ming 16326294842SLin Ming #define ACPI_METHOD_MODULE_LEVEL 0x01 /* Method is actually module-level code */ 16426294842SLin Ming #define ACPI_METHOD_INTERNAL_ONLY 0x02 /* Method is implemented internally (_OSI) */ 16526294842SLin Ming #define ACPI_METHOD_SERIALIZED 0x04 /* Method is serialized */ 16626294842SLin Ming #define ACPI_METHOD_SERIALIZED_PENDING 0x08 /* Method is to be marked serialized */ 167d1825579SBob Moore #define ACPI_METHOD_IGNORE_SYNC_LEVEL 0x10 /* Method was auto-serialized at table load time */ 168d1825579SBob Moore #define ACPI_METHOD_MODIFIED_NAMESPACE 0x20 /* Method modified the namespace */ 16926294842SLin Ming 170e2f7a777SLen Brown /****************************************************************************** 171e2f7a777SLen Brown * 172e2f7a777SLen Brown * Objects that can be notified. All share a common notify_info area. 173e2f7a777SLen Brown * 174e2f7a777SLen Brown *****************************************************************************/ 175e2f7a777SLen Brown 176e2f7a777SLen Brown /* 177e2f7a777SLen Brown * Common fields for objects that support ASL notifications 178e2f7a777SLen Brown */ 179e2f7a777SLen Brown #define ACPI_COMMON_NOTIFY_INFO \ 18086ed4bc8SBob Moore union acpi_operand_object *notify_list[2]; /* Handlers for system/device notifies */\ 181e2f7a777SLen Brown union acpi_operand_object *handler; /* Handler for Address space */ 182e2f7a777SLen Brown 1837679c35dSLv Zheng /* COMMON NOTIFY for POWER, PROCESSOR, DEVICE, and THERMAL */ 1847679c35dSLv Zheng 1857679c35dSLv Zheng struct acpi_object_notify_common { 186e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO}; 187e2f7a777SLen Brown 188e2f7a777SLen Brown struct acpi_object_device { 189e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER 190e2f7a777SLen Brown ACPI_COMMON_NOTIFY_INFO struct acpi_gpe_block_info *gpe_block; 191e2f7a777SLen Brown }; 192e2f7a777SLen Brown 193e2f7a777SLen Brown struct acpi_object_power_resource { 194e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO u32 system_level; 195e2f7a777SLen Brown u32 resource_order; 196e2f7a777SLen Brown }; 197e2f7a777SLen Brown 198e2f7a777SLen Brown struct acpi_object_processor { 199e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER 200e2f7a777SLen Brown /* The next two fields take advantage of the 3-byte space before NOTIFY_INFO */ 201e2f7a777SLen Brown u8 proc_id; 202e2f7a777SLen Brown u8 length; 203e2f7a777SLen Brown ACPI_COMMON_NOTIFY_INFO acpi_io_address address; 204e2f7a777SLen Brown }; 205e2f7a777SLen Brown 206e2f7a777SLen Brown struct acpi_object_thermal_zone { 207e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO}; 208e2f7a777SLen Brown 209e2f7a777SLen Brown /****************************************************************************** 210e2f7a777SLen Brown * 211e2f7a777SLen Brown * Fields. All share a common header/info field. 212e2f7a777SLen Brown * 213e2f7a777SLen Brown *****************************************************************************/ 214e2f7a777SLen Brown 215e2f7a777SLen Brown /* 216e2f7a777SLen Brown * Common bitfield for the field objects 217e2f7a777SLen Brown * "Field Datum" -- a datum from the actual field object 218e2f7a777SLen Brown * "Buffer Datum" -- a datum from a user buffer, read from or to be written to the field 219e2f7a777SLen Brown */ 220e2f7a777SLen Brown #define ACPI_COMMON_FIELD_INFO \ 221e2f7a777SLen Brown u8 field_flags; /* Access, update, and lock bits */\ 222e2f7a777SLen Brown u8 attribute; /* From access_as keyword */\ 223e2f7a777SLen Brown u8 access_byte_width; /* Read/Write size in bytes */\ 224e2f7a777SLen Brown struct acpi_namespace_node *node; /* Link back to parent node */\ 225e2f7a777SLen Brown u32 bit_length; /* Length of field in bits */\ 226e2f7a777SLen Brown u32 base_byte_offset; /* Byte offset within containing object */\ 227e2f7a777SLen Brown u32 value; /* Value to store into the Bank or Index register */\ 228e2f7a777SLen Brown u8 start_field_bit_offset;/* Bit offset within first field datum (0-63) */\ 2299ce81784SBob Moore u8 access_length; /* For serial regions/fields */ 23009387b43SBob Moore 231e2f7a777SLen Brown 2327679c35dSLv Zheng /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */ 2337679c35dSLv Zheng 2347679c35dSLv Zheng struct acpi_object_field_common { 235e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */ 236e2f7a777SLen Brown }; 237e2f7a777SLen Brown 238e2f7a777SLen Brown struct acpi_object_region_field { 2399ce81784SBob Moore ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO u16 resource_length; 2409ce81784SBob Moore union acpi_operand_object *region_obj; /* Containing op_region object */ 2419ce81784SBob Moore u8 *resource_buffer; /* resource_template for serial regions/fields */ 24275ec6e55SBob Moore u16 pin_number_index; /* Index relative to previous Connection/Template */ 243aa6ec56bSErik Schmauss u8 *internal_pcc_buffer; /* Internal buffer for fields associated with PCC */ 244e2f7a777SLen Brown }; 245e2f7a777SLen Brown 246e2f7a777SLen Brown struct acpi_object_bank_field { 247e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Containing op_region object */ 248e2f7a777SLen Brown union acpi_operand_object *bank_obj; /* bank_select Register object */ 249e2f7a777SLen Brown }; 250e2f7a777SLen Brown 251e2f7a777SLen Brown struct acpi_object_index_field { 252e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO 253e2f7a777SLen Brown /* 254e2f7a777SLen Brown * No "RegionObj" pointer needed since the Index and Data registers 255e2f7a777SLen Brown * are each field definitions unto themselves. 256e2f7a777SLen Brown */ 257e2f7a777SLen Brown union acpi_operand_object *index_obj; /* Index register */ 258e2f7a777SLen Brown union acpi_operand_object *data_obj; /* Data register */ 259e2f7a777SLen Brown }; 260e2f7a777SLen Brown 261e2f7a777SLen Brown /* The buffer_field is different in that it is part of a Buffer, not an op_region */ 262e2f7a777SLen Brown 263e2f7a777SLen Brown struct acpi_object_buffer_field { 2646d232b29SMaximilian Luz ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO u8 is_create_field; /* Special case for objects created by create_field() */ 2656d232b29SMaximilian Luz union acpi_operand_object *buffer_obj; /* Containing Buffer object */ 266e2f7a777SLen Brown }; 267e2f7a777SLen Brown 268e2f7a777SLen Brown /****************************************************************************** 269e2f7a777SLen Brown * 270e2f7a777SLen Brown * Objects for handlers 271e2f7a777SLen Brown * 272e2f7a777SLen Brown *****************************************************************************/ 273e2f7a777SLen Brown 274e2f7a777SLen Brown struct acpi_object_notify_handler { 275e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *node; /* Parent device */ 27686ed4bc8SBob Moore u32 handler_type; /* Type: Device/System/Both */ 27786ed4bc8SBob Moore acpi_notify_handler handler; /* Handler address */ 278e2f7a777SLen Brown void *context; 27986ed4bc8SBob Moore union acpi_operand_object *next[2]; /* Device and System handler lists */ 280e2f7a777SLen Brown }; 281e2f7a777SLen Brown 282e2f7a777SLen Brown struct acpi_object_addr_handler { 283e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER u8 space_id; 284e2f7a777SLen Brown u8 handler_flags; 285e2f7a777SLen Brown acpi_adr_space_handler handler; 286e2f7a777SLen Brown struct acpi_namespace_node *node; /* Parent device */ 287e2f7a777SLen Brown void *context; 288c27f3d01SHans de Goede acpi_mutex context_mutex; 289e2f7a777SLen Brown acpi_adr_space_setup setup; 29075c8044fSLv Zheng union acpi_operand_object *region_list; /* Regions using this handler */ 291e2f7a777SLen Brown union acpi_operand_object *next; 292e2f7a777SLen Brown }; 293e2f7a777SLen Brown 294e2f7a777SLen Brown /* Flags for address handler (handler_flags) */ 295e2f7a777SLen Brown 296e2f7a777SLen Brown #define ACPI_ADDR_HANDLER_DEFAULT_INSTALLED 0x01 297e2f7a777SLen Brown 298e2f7a777SLen Brown /****************************************************************************** 299e2f7a777SLen Brown * 300e2f7a777SLen Brown * Special internal objects 301e2f7a777SLen Brown * 302e2f7a777SLen Brown *****************************************************************************/ 303e2f7a777SLen Brown 304e2f7a777SLen Brown /* 305e2f7a777SLen Brown * The Reference object is used for these opcodes: 306e2f7a777SLen Brown * Arg[0-6], Local[0-7], index_op, name_op, ref_of_op, load_op, load_table_op, debug_op 307e2f7a777SLen Brown * The Reference.Class differentiates these types. 308e2f7a777SLen Brown */ 309e2f7a777SLen Brown struct acpi_object_reference { 310e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER u8 class; /* Reference Class */ 311e2f7a777SLen Brown u8 target_type; /* Used for Index Op */ 312a62a7117SBob Moore u8 resolved; /* Reference has been resolved to a value */ 313e2f7a777SLen Brown void *object; /* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */ 314e2f7a777SLen Brown struct acpi_namespace_node *node; /* ref_of or Namepath */ 315e2f7a777SLen Brown union acpi_operand_object **where; /* Target of Index */ 316fde175e3SBob Moore u8 *index_pointer; /* Used for Buffers and Strings */ 317a62a7117SBob Moore u8 *aml; /* Used for deferred resolution of the ref */ 318e2f7a777SLen Brown u32 value; /* Used for Local/Arg/Index/ddb_handle */ 319e2f7a777SLen Brown }; 320e2f7a777SLen Brown 321e2f7a777SLen Brown /* Values for Reference.Class above */ 322e2f7a777SLen Brown 323e2f7a777SLen Brown typedef enum { 324e2f7a777SLen Brown ACPI_REFCLASS_LOCAL = 0, /* Method local */ 325e2f7a777SLen Brown ACPI_REFCLASS_ARG = 1, /* Method argument */ 326e2f7a777SLen Brown ACPI_REFCLASS_REFOF = 2, /* Result of ref_of() TBD: Split to Ref/Node and Ref/operand_obj? */ 327e2f7a777SLen Brown ACPI_REFCLASS_INDEX = 3, /* Result of Index() */ 328e2f7a777SLen Brown ACPI_REFCLASS_TABLE = 4, /* ddb_handle - Load(), load_table() */ 329e2f7a777SLen Brown ACPI_REFCLASS_NAME = 5, /* Reference to a named object */ 330e2f7a777SLen Brown ACPI_REFCLASS_DEBUG = 6, /* Debug object */ 331e2f7a777SLen Brown 332e2f7a777SLen Brown ACPI_REFCLASS_MAX = 6 333e2f7a777SLen Brown } ACPI_REFERENCE_CLASSES; 334e2f7a777SLen Brown 335e2f7a777SLen Brown /* 336e2f7a777SLen Brown * Extra object is used as additional storage for types that 337e2f7a777SLen Brown * have AML code in their declarations (term_args) that must be 338e2f7a777SLen Brown * evaluated at run time. 339e2f7a777SLen Brown * 340e2f7a777SLen Brown * Currently: Region and field_unit types 341e2f7a777SLen Brown */ 342e2f7a777SLen Brown struct acpi_object_extra { 343e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER struct acpi_namespace_node *method_REG; /* _REG method for this region (if any) */ 3448931d9eaSLin Ming struct acpi_namespace_node *scope_node; 345e2f7a777SLen Brown void *region_context; /* Region-specific data */ 346e2f7a777SLen Brown u8 *aml_start; 347e2f7a777SLen Brown u32 aml_length; 348e2f7a777SLen Brown }; 349e2f7a777SLen Brown 350e2f7a777SLen Brown /* Additional data that can be attached to namespace nodes */ 351e2f7a777SLen Brown 352e2f7a777SLen Brown struct acpi_object_data { 353e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER acpi_object_handler handler; 354e2f7a777SLen Brown void *pointer; 355e2f7a777SLen Brown }; 356e2f7a777SLen Brown 357e2f7a777SLen Brown /* Structure used when objects are cached for reuse */ 358e2f7a777SLen Brown 359e2f7a777SLen Brown struct acpi_object_cache_list { 360e2f7a777SLen Brown ACPI_OBJECT_COMMON_HEADER union acpi_operand_object *next; /* Link for object cache and internal lists */ 361e2f7a777SLen Brown }; 362e2f7a777SLen Brown 363e2f7a777SLen Brown /****************************************************************************** 364e2f7a777SLen Brown * 365ba494beeSBob Moore * union acpi_operand_object descriptor - a giant union of all of the above 366e2f7a777SLen Brown * 367e2f7a777SLen Brown *****************************************************************************/ 368e2f7a777SLen Brown 369e2f7a777SLen Brown union acpi_operand_object { 370e2f7a777SLen Brown struct acpi_object_common common; 371e2f7a777SLen Brown struct acpi_object_integer integer; 372e2f7a777SLen Brown struct acpi_object_string string; 373e2f7a777SLen Brown struct acpi_object_buffer buffer; 374e2f7a777SLen Brown struct acpi_object_package package; 375e2f7a777SLen Brown struct acpi_object_event event; 376e2f7a777SLen Brown struct acpi_object_method method; 377e2f7a777SLen Brown struct acpi_object_mutex mutex; 378e2f7a777SLen Brown struct acpi_object_region region; 379e2f7a777SLen Brown struct acpi_object_notify_common common_notify; 380e2f7a777SLen Brown struct acpi_object_device device; 381e2f7a777SLen Brown struct acpi_object_power_resource power_resource; 382e2f7a777SLen Brown struct acpi_object_processor processor; 383e2f7a777SLen Brown struct acpi_object_thermal_zone thermal_zone; 384e2f7a777SLen Brown struct acpi_object_field_common common_field; 385e2f7a777SLen Brown struct acpi_object_region_field field; 386e2f7a777SLen Brown struct acpi_object_buffer_field buffer_field; 387e2f7a777SLen Brown struct acpi_object_bank_field bank_field; 388e2f7a777SLen Brown struct acpi_object_index_field index_field; 389e2f7a777SLen Brown struct acpi_object_notify_handler notify; 390e2f7a777SLen Brown struct acpi_object_addr_handler address_space; 391e2f7a777SLen Brown struct acpi_object_reference reference; 392e2f7a777SLen Brown struct acpi_object_extra extra; 393e2f7a777SLen Brown struct acpi_object_data data; 394e2f7a777SLen Brown struct acpi_object_cache_list cache; 395e2f7a777SLen Brown 396e2f7a777SLen Brown /* 397e2f7a777SLen Brown * Add namespace node to union in order to simplify code that accepts both 398e2f7a777SLen Brown * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share 399e2f7a777SLen Brown * a common descriptor_type field in order to differentiate them. 400e2f7a777SLen Brown */ 401e2f7a777SLen Brown struct acpi_namespace_node node; 402e2f7a777SLen Brown }; 403e2f7a777SLen Brown 404e2f7a777SLen Brown /****************************************************************************** 405e2f7a777SLen Brown * 406e2f7a777SLen Brown * union acpi_descriptor - objects that share a common descriptor identifier 407e2f7a777SLen Brown * 408e2f7a777SLen Brown *****************************************************************************/ 409e2f7a777SLen Brown 410e2f7a777SLen Brown /* Object descriptor types */ 411e2f7a777SLen Brown 412e2f7a777SLen Brown #define ACPI_DESC_TYPE_CACHED 0x01 /* Used only when object is cached */ 413e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE 0x02 414e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_UPDATE 0x03 415e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_PACKAGE 0x04 416e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_CONTROL 0x05 417e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_RPSCOPE 0x06 418e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_PSCOPE 0x07 419e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_WSCOPE 0x08 420e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_RESULT 0x09 421e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_NOTIFY 0x0A 422e2f7a777SLen Brown #define ACPI_DESC_TYPE_STATE_THREAD 0x0B 423e2f7a777SLen Brown #define ACPI_DESC_TYPE_WALK 0x0C 424e2f7a777SLen Brown #define ACPI_DESC_TYPE_PARSER 0x0D 425e2f7a777SLen Brown #define ACPI_DESC_TYPE_OPERAND 0x0E 426e2f7a777SLen Brown #define ACPI_DESC_TYPE_NAMED 0x0F 427e2f7a777SLen Brown #define ACPI_DESC_TYPE_MAX 0x0F 428e2f7a777SLen Brown 429e2f7a777SLen Brown struct acpi_common_descriptor { 430e2f7a777SLen Brown void *common_pointer; 431e2f7a777SLen Brown u8 descriptor_type; /* To differentiate various internal objs */ 432e2f7a777SLen Brown }; 433e2f7a777SLen Brown 434e2f7a777SLen Brown union acpi_descriptor { 435e2f7a777SLen Brown struct acpi_common_descriptor common; 436e2f7a777SLen Brown union acpi_operand_object object; 437e2f7a777SLen Brown struct acpi_namespace_node node; 438e2f7a777SLen Brown union acpi_parse_object op; 439e2f7a777SLen Brown }; 440e2f7a777SLen Brown 4416e596084SRobert Moore #pragma pack() 442e2f7a777SLen Brown 443e2f7a777SLen Brown #endif /* _ACOBJECT_H */ 444