1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2009-2010, Intel Corporation. 23 * All rights reserved. 24 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 25 */ 26 27 #ifndef _SYS_ACPIDEV_H 28 #define _SYS_ACPIDEV_H 29 #include <sys/types.h> 30 #include <sys/obpdefs.h> 31 #include <sys/sunddi.h> 32 #ifdef _KERNEL 33 #include <sys/acpi/acpi.h> 34 #include <sys/acpica.h> 35 #endif 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* Maximum recursion levels when enumerating objects in ACPI namespace. */ 42 #define ACPIDEV_MAX_ENUM_LEVELS 32 43 44 /* Maximum length of device name for ACPI object. */ 45 #define ACPIDEV_MAX_NAMELEN OBP_MAXDRVNAME 46 47 /* Pseudo ACPI device HID for ACPI root object. */ 48 #define ACPIDEV_HID_ROOTNEX "SOLA0001" 49 /* Pseudo ACPI device HID for ACPI virtual bus. */ 50 #define ACPIDEV_HID_VIRTNEX "SOLA0002" 51 #define ACPIDEV_HID_SCOPE "SOLA0003" 52 #define ACPIDEV_HID_PROCESSOR "SOLA0004" 53 54 /* ACPI device HIDs/CIDs defined by ACPI specification. */ 55 #define ACPIDEV_HID_CONTAINER1 "PNP0A05" 56 #define ACPIDEV_HID_CONTAINER2 "PNP0A06" 57 #define ACPIDEV_HID_MODULE "ACPI0004" 58 #define ACPIDEV_HID_CPU "ACPI0007" 59 #define ACPIDEV_HID_PCI_HOSTBRIDGE "PNP0A03" 60 #define ACPIDEV_HID_PCIE_HOSTBRIDGE "PNP0A08" 61 #define ACPIDEV_HID_PCIEX_HOSTBRIDGE "PNP0A08" 62 #define ACPIDEV_HID_MEMORY "PNP0C80" 63 64 /* Device names for ACPI objects. */ 65 #define ACPIDEV_NODE_NAME_ROOT "fw" 66 #define ACPIDEV_NODE_NAME_ACPIDR "acpidr" 67 #define ACPIDEV_NODE_NAME_CONTAINER "container" 68 #define ACPIDEV_NODE_NAME_MODULE_SBD "sb" 69 #define ACPIDEV_NODE_NAME_MODULE_CPU "socket" 70 #define ACPIDEV_NODE_NAME_CPU "cpu" 71 #define ACPIDEV_NODE_NAME_PROCESSOR "cpus" 72 #define ACPIDEV_NODE_NAME_MEMORY "mem" 73 #define ACPIDEV_NODE_NAME_PCI "pci" 74 75 /* Device types for ACPI objects. */ 76 #define ACPIDEV_TYPE_ROOTNEX "acpirootnex" 77 #define ACPIDEV_TYPE_VIRTNEX "acpivirtnex" 78 #define ACPIDEV_TYPE_SCOPE "acpiscope" 79 #define ACPIDEV_TYPE_DEVICE "acpidevice" 80 #define ACPIDEV_TYPE_CONTAINER "acpicontainer" 81 #define ACPIDEV_TYPE_CPU "acpicpu" 82 #define ACPIDEV_TYPE_MEMORY "acpimemory" 83 #define ACPIDEV_TYPE_PCI "pci" 84 #define ACPIDEV_TYPE_PCIEX "pciex" 85 86 /* Device property names for ACPI objects. */ 87 #define ACPIDEV_PROP_NAME_UNIT_ADDR "unit-address" 88 #define ACPIDEV_PROP_NAME_ACPI_UID "acpi-uid" 89 #define ACPIDEV_PROP_NAME_PROCESSOR_ID "acpi-processor-id" 90 #define ACPIDEV_PROP_NAME_LOCALAPIC_ID "apic-id" 91 #define ACPIDEV_PROP_NAME_PROXIMITY_ID "proximity-id" 92 93 #define ACPIDEV_PROP_NAME_UID_FORMAT "acpidev-uid-format" 94 95 /* Miscellaneous strings. */ 96 #define ACPIDEV_CMD_OST_PREFIX "acpi-update-status" 97 #define ACPIDEV_CMD_OST_INPROGRESS "acpi-update-status=inprogress" 98 #define ACPIDEV_CMD_OST_SUCCESS "acpi-update-status=success" 99 #define ACPIDEV_CMD_OST_FAILURE "acpi-update-status=failure" 100 #define ACPIDEV_CMD_OST_NOOP "acpi-update-status=noop" 101 102 #define ACPIDEV_EVENT_TYPE_ATTR_NAME "acpi-event-type" 103 #define ACPIDEV_EVENT_TYPE_BUS_CHECK "bus_check" 104 #define ACPIDEV_EVENT_TYPE_DEVICE_CHECK "device_check" 105 #define ACPIDEV_EVENT_TYPE_DEVICE_CHECK_LIGHT "device_check_light" 106 #define ACPIDEV_EVENT_TYPE_EJECT_REQUEST "eject_request" 107 108 /* ACPI device class Id. */ 109 typedef enum acpidev_class_id { 110 ACPIDEV_CLASS_ID_INVALID = 0, 111 ACPIDEV_CLASS_ID_ROOTNEX = 1, 112 ACPIDEV_CLASS_ID_SCOPE = 2, 113 ACPIDEV_CLASS_ID_DEVICE = 3, 114 ACPIDEV_CLASS_ID_CONTAINER = 4, 115 ACPIDEV_CLASS_ID_CPU = 5, 116 ACPIDEV_CLASS_ID_MEMORY = 6, 117 ACPIDEV_CLASS_ID_PCI = 7, 118 ACPIDEV_CLASS_ID_PCIEX = 8, 119 ACPIDEV_CLASS_ID_MAX 120 } acpidev_class_id_t; 121 122 /* Flags for acpidev_options boot options. */ 123 #define ACPIDEV_OUSER_NO_CPU 0x1 124 #define ACPIDEV_OUSER_NO_MEM 0x2 125 #define ACPIDEV_OUSER_NO_CONTAINER 0x4 126 #define ACPIDEV_OUSER_NO_PCI 0x8 127 #define ACPIDEV_OUSER_NO_CACHE 0x10000 128 129 #ifdef _KERNEL 130 131 /* Common ACPI object names. */ 132 #define ACPIDEV_OBJECT_NAME_SB METHOD_NAME__SB_ 133 #define ACPIDEV_OBJECT_NAME_PR "_PR_" 134 135 /* Common ACPI method names. */ 136 #define ACPIDEV_METHOD_NAME_MAT "_MAT" 137 #define ACPIDEV_METHOD_NAME_EJ0 "_EJ0" 138 #define ACPIDEV_METHOD_NAME_EDL "_EDL" 139 #define ACPIDEV_METHOD_NAME_EJD "_EJD" 140 #define ACPIDEV_METHOD_NAME_OST "_OST" 141 #define ACPIDEV_METHOD_NAME_PXM "_PXM" 142 #define ACPIDEV_METHOD_NAME_SLI "_SLI" 143 144 /* Source event code for _OST. */ 145 #define ACPI_OST_EVENT_EJECTING 0x103 146 #define ACPI_OST_EVENT_INSERTING 0x200 147 148 /* Status code for _OST. */ 149 #define ACPI_OST_STA_SUCCESS 0x0 150 151 /* Non-specific failure. */ 152 #define ACPI_OST_STA_FAILURE 0x1 153 154 /* Unrecognized Notify Code. */ 155 #define ACPI_OST_STA_NOT_SUPPORT 0x2 156 157 /* Device ejection not supported by OSPM. */ 158 #define ACPI_OST_STA_EJECT_NOT_SUPPORT 0x80 159 160 /* Device in use by application. */ 161 #define ACPI_OST_STA_EJECT_IN_USE 0x81 162 163 /* Device Busy. */ 164 #define ACPI_OST_STA_EJECT_BUSY 0x82 165 166 /* Ejection dependency is busy or not supported for ejection by OSPM. */ 167 #define ACPI_OST_STA_EJECT_DEPENDENCY 0x83 168 169 /* Ejection is in progress (pending). */ 170 #define ACPI_OST_STA_EJECT_IN_PROGRESS 0x84 171 172 /* Device insertion in progress (pending). */ 173 #define ACPI_OST_STA_INSERT_IN_PROGRESS 0x80 174 175 /* Device driver load failure. */ 176 #define ACPI_OST_STA_INSERT_DRIVER 0x81 177 178 /* Device insertion not supported by OSPM. */ 179 #define ACPI_OST_STA_INSERT_NOT_SUPPORT 0x82 180 181 /* 182 * Insertion failure 183 * Resources Unavailable as described by the following bit encodings: 184 * Bit[3] Bus Numbers 185 * Bit[2] Interrupts 186 * Bit[1] I/O 187 * Bit[0] Memory 188 */ 189 #define ACPI_OST_STA_INSERT_NO_RESOURCE 0x90 190 #define ACPI_OST_STA_INSERT_NO_BUS 0x8 191 #define ACPI_OST_STA_INSERT_NO_INTR 0x4 192 #define ACPI_OST_STA_INSERT_NO_IO 0x2 193 #define ACPI_OST_STA_INSERT_NO_MEM 0x1 194 195 /* 196 * According to the ACPI specification, self latency (entry[n][n]) in the 197 * SLIT table should be 10. 198 */ 199 #define ACPI_SLIT_SELF_LATENCY 10 200 201 /* 202 * The DR driver assigns a unique device id for each hot-added memory device. 203 * ACPI_MEMNODE_DEVID_BOOT is assigned to memory devices present at boot, 204 * which is distinguished from device ids assigned by the DR driver. 205 */ 206 #define ACPI_MEMNODE_DEVID_BOOT UINT32_MAX 207 208 /* Forward declaration */ 209 typedef struct acpidev_data_impl *acpidev_data_handle_t; 210 typedef struct acpidev_walk_info acpidev_walk_info_t; 211 typedef struct acpidev_filter_rule acpidev_filter_rule_t; 212 typedef struct acpidev_class acpidev_class_t; 213 typedef struct acpidev_class_list acpidev_class_list_t; 214 215 /* Type of ACPI device enumerating operation. */ 216 typedef enum acpidev_op_type { 217 ACPIDEV_OP_BOOT_PROBE = 0, /* First pass probing at boot time. */ 218 ACPIDEV_OP_BOOT_REPROBE, /* Second pass probing at boot time. */ 219 ACPIDEV_OP_HOTPLUG_PROBE /* Probing for hotplug at runtime. */ 220 } acpidev_op_type_t; 221 222 /* 223 * Structure to pass arguments when enumerating ACPI namespace. 224 */ 225 struct acpidev_walk_info { 226 /* Always valid for all callbacks. */ 227 acpidev_op_type_t awi_op_type; 228 int awi_level; 229 acpidev_walk_info_t *awi_parent; 230 acpidev_class_t *awi_class_curr; 231 232 /* Valid for all callbacks except pre_probe and post_probe. */ 233 int awi_flags; 234 ACPI_HANDLE awi_hdl; 235 ACPI_DEVICE_INFO *awi_info; 236 char *awi_name; 237 acpidev_data_handle_t awi_data; 238 239 /* Need to validate it before access. */ 240 dev_info_t *awi_dip; 241 acpidev_class_list_t **awi_class_list; 242 243 /* Used by class to store data temporarily. */ 244 intptr_t awi_scratchpad[4]; 245 }; 246 247 /* Disable creating device nodes for ACPI objects. */ 248 #define ACPIDEV_WI_DISABLE_CREATE 0x1 249 /* Device node has already been created for an ACPI object. */ 250 #define ACPIDEV_WI_DEVICE_CREATED 0x2 251 /* Disable enumerating children of ACPI objects. */ 252 #define ACPIDEV_WI_DISABLE_SCAN 0x10 253 /* Children of ACPI objects have already been enumerated. */ 254 #define ACPIDEV_WI_CHILD_SCANNED 0x20 255 256 /* 257 * Device filtering result code. 258 * Device filtering logic will be applied to determine how to handle ACPI 259 * objects according to the filtering result code when enumerating ACPI objects. 260 */ 261 typedef enum acpidev_filter_result { 262 ACPIDEV_FILTER_FAILED = -1, /* operation failed */ 263 ACPIDEV_FILTER_CONTINUE = 0, /* continue to evaluate filter rules */ 264 ACPIDEV_FILTER_DEFAULT, /* create node and scan child */ 265 ACPIDEV_FILTER_SCAN, /* scan child of current node only */ 266 ACPIDEV_FILTER_CREATE, /* create device node only */ 267 ACPIDEV_FILTER_SKIP, /* skip current node */ 268 } acpidev_filter_result_t; 269 270 typedef acpidev_filter_result_t (* acpidev_filter_func_t)(acpidev_walk_info_t *, 271 ACPI_HANDLE, acpidev_filter_rule_t *, char *, int); 272 273 /* 274 * Device filter rule data structure. 275 * User provided callback will be called if adf_filter_func is not NULL, 276 * otherwise default filtering algorithm will be applied. 277 */ 278 struct acpidev_filter_rule { 279 acpidev_filter_func_t adf_filter_func; 280 intptr_t adf_filter_arg; 281 acpidev_filter_result_t adf_retcode; 282 acpidev_class_list_t **adf_class_list; 283 intptr_t adf_minlvl; 284 intptr_t adf_maxlvl; 285 char *adf_pattern; 286 char *adf_replace; 287 }; 288 289 /* Callback function prototypes for ACPI device class driver. */ 290 typedef ACPI_STATUS (* acpidev_pre_probe_t)(acpidev_walk_info_t *); 291 typedef ACPI_STATUS (* acpidev_post_probe_t)(acpidev_walk_info_t *); 292 typedef ACPI_STATUS (* acpidev_probe_t)(acpidev_walk_info_t *); 293 typedef acpidev_filter_result_t (* acpidev_filter_t)(acpidev_walk_info_t *, 294 char *, int); 295 typedef ACPI_STATUS (* acpidev_init_t)(acpidev_walk_info_t *); 296 typedef void (* acpidev_fini_t)(ACPI_HANDLE, acpidev_data_handle_t, 297 acpidev_class_t *); 298 299 /* Device class driver interface. */ 300 struct acpidev_class { 301 volatile uint32_t adc_refcnt; 302 int adc_version; 303 acpidev_class_id_t adc_class_id; 304 /* Name of device class, used in log messages. */ 305 char *adc_class_name; 306 /* Used as "device_type" property. */ 307 char *adc_dev_type; 308 /* Private storage for device driver. */ 309 void *adc_private; 310 /* Callback to setup environment before probing child objects. */ 311 acpidev_pre_probe_t adc_pre_probe; 312 /* Callback to clean environment after probing child objects. */ 313 acpidev_post_probe_t adc_post_probe; 314 /* Callback to probe child objects. */ 315 acpidev_probe_t adc_probe; 316 /* Callback to figure out policy to handle objects. */ 317 acpidev_filter_t adc_filter; 318 /* Callback to set device class specific device properties. */ 319 acpidev_init_t adc_init; 320 /* Callback to clean up resources when destroying device nodes. */ 321 acpidev_fini_t adc_fini; 322 }; 323 324 /* Versions of the ACPI device class driver data structure. */ 325 #define ACPIDEV_CLASS_REV1 1 326 #define ACPIDEV_CLASS_REV ACPIDEV_CLASS_REV1 327 328 /* 329 * Class drivers. 330 */ 331 extern acpidev_class_t acpidev_class_scope; 332 extern acpidev_class_t acpidev_class_device; 333 extern acpidev_class_t acpidev_class_container; 334 extern acpidev_class_t acpidev_class_cpu; 335 extern acpidev_class_t acpidev_class_memory; 336 extern acpidev_class_t acpidev_class_pci; 337 338 /* 339 * Class driver lists. 340 */ 341 extern acpidev_class_list_t *acpidev_class_list_root; 342 extern acpidev_class_list_t *acpidev_class_list_scope; 343 extern acpidev_class_list_t *acpidev_class_list_device; 344 extern acpidev_class_list_t *acpidev_class_list_cpu; 345 extern acpidev_class_list_t *acpidev_class_list_memory; 346 347 /* 348 * Register a device class driver onto a driver list. All class drivers on the 349 * same list will be called in order when processing an ACPI object. 350 * This interface can be used to support machine/platform specific object 351 * handling by registering special plug-in class drivers to override system 352 * default behaviors. 353 * listpp: pointer to driver list header 354 * clsp: device class driver to register 355 * tail: insert at tail of list if true 356 * Return values: 357 * AE_OK: success 358 * AE_BAD_PARAMETER: invalid parameter 359 * AE_BAD_DATA: driver version mismatch 360 * AE_ALREADY_EXISTS: class driver already exists on the list 361 */ 362 extern ACPI_STATUS acpidev_register_class(acpidev_class_list_t **listpp, 363 acpidev_class_t *clsp, boolean_t tail); 364 365 /* 366 * Unregister a device class driver from a driver list. 367 * listpp: pointer to driver list header 368 * clsp: device class driver to unregister 369 * Return values: 370 * AE_OK: success 371 * AE_BAD_PARAMETER: invalid parameter 372 * AE_NOT_FOUND: class driver doesn't exist in list 373 * AE_ERROR: class driver is still in use. 374 */ 375 extern ACPI_STATUS acpidev_unregister_class(acpidev_class_list_t **listpp, 376 acpidev_class_t *clsp); 377 378 /* 379 * Recursively enumerate child objects of an ACPI object. 380 * It does following things in turn: 381 * 1) Call pre_probe callback for each registered handler 382 * 2) Enumerate child objects and call probe callbacks for each object 383 * 3) Call post_probe callback for each registered handler 384 * Return AE_OK on success and error code on failure. 385 */ 386 extern ACPI_STATUS acpidev_probe_child(acpidev_walk_info_t *infop); 387 388 /* 389 * Default handler to process ACPI objects. 390 * It creates a device node for an ACPI object and scans all child objects on 391 * demand. 392 * Return values: 393 * AE_OK: on success 394 * AE_NOT_EXIST: device doesn't exist according to _STA value. 395 * AE_ALREADY_EXISTS: object already handled by other handler. 396 * AE_ERROR: on other failure 397 */ 398 extern ACPI_STATUS acpidev_process_object(acpidev_walk_info_t *infop, 399 int flags); 400 401 /* Flags for acpidev_process_device() */ 402 #define ACPIDEV_PROCESS_FLAG_CREATE 0x1 /* Create device */ 403 #define ACPIDEV_PROCESS_FLAG_SCAN 0x2 /* Scan child objects */ 404 #define ACPIDEV_PROCESS_FLAG_CHECK 0x100 /* Check status */ 405 #define ACPIDEV_PROCESS_FLAG_NOBIND 0x200 /* Skip binding driver */ 406 #define ACPIDEV_PROCESS_FLAG_OFFLINE 0x400 /* Put device into offline. */ 407 #define ACPIDEV_PROCESS_FLAG_NOTAG 0x800 /* Skip tag dip with object. */ 408 #define ACPIDEV_PROCESS_FLAG_SYNCSTATUS 0x1000 /* Sync object status. */ 409 #define ACPIDEV_PROCESS_FLAG_HOLDBRANCH 0x10000 /* Hold device branch. */ 410 411 /* 412 * Filter ACPI objects according to filter rules, generate devname if needed. 413 * infop: pointer to walker information structure 414 * hdl: handle of ACPI object in question 415 * afrp: pointer to filter rule array 416 * entries: number of filter rules in array 417 * devname: buffer to store generated device name 418 * len: sizeof devname buffer 419 */ 420 extern acpidev_filter_result_t acpidev_filter_device(acpidev_walk_info_t *infop, 421 ACPI_HANDLE hdl, acpidev_filter_rule_t *afrp, int entries, 422 char *devname, int len); 423 424 /* Default object filtering algorithm. */ 425 extern acpidev_filter_result_t acpidev_filter_default( 426 acpidev_walk_info_t *infop, ACPI_HANDLE hdl, acpidev_filter_rule_t *afrp, 427 char *devname, int len); 428 429 /* Utility routines */ 430 extern dev_info_t *acpidev_root_node(void); 431 extern char *acpidev_get_object_name(ACPI_HANDLE hdl); 432 extern void acpidev_free_object_name(char *objname); 433 434 extern acpidev_walk_info_t *acpidev_alloc_walk_info(acpidev_op_type_t op_type, 435 int lvl, ACPI_HANDLE hdl, acpidev_class_list_t **listpp, 436 acpidev_walk_info_t *pinfop); 437 extern void acpidev_free_walk_info(acpidev_walk_info_t *infop); 438 extern dev_info_t *acpidev_walk_info_get_pdip(acpidev_walk_info_t *infop); 439 440 /* Interfaces to access data associated with ACPI object. */ 441 extern acpidev_data_handle_t acpidev_data_get_handle(ACPI_HANDLE hdl); 442 extern acpidev_data_handle_t acpidev_data_create_handle(ACPI_HANDLE hdl); 443 extern void acpidev_data_destroy_handle(ACPI_HANDLE hdl); 444 extern ACPI_HANDLE acpidev_data_get_object(acpidev_data_handle_t hdl); 445 extern dev_info_t *acpidev_data_get_devinfo(acpidev_data_handle_t hdl); 446 extern int acpidev_data_get_status(acpidev_data_handle_t hdl); 447 extern boolean_t acpidev_data_dr_capable(acpidev_data_handle_t hdl); 448 extern boolean_t acpidev_data_dr_ready(acpidev_data_handle_t hdl); 449 extern boolean_t acpidev_data_dr_failed(acpidev_data_handle_t hdl); 450 extern void acpidev_data_set_flag(acpidev_data_handle_t hdl, uint32_t flag); 451 extern void acpidev_data_clear_flag(acpidev_data_handle_t hdl, uint32_t flag); 452 extern uint32_t acpidev_data_get_flag(acpidev_data_handle_t hdl, uint32_t flag); 453 454 /* ACPI system event handler has been registered. */ 455 #define ACPIDEV_DATA_HANDLER_READY 0x1 456 457 /* 458 * Try to generate meaningful device unit address from uid. 459 * Return buf on success and NULL on failure. 460 */ 461 extern char *acpidev_generate_unitaddr(char *uid, char **fmts, size_t nfmt, 462 char *buf, size_t len); 463 464 /* 465 * Set device unit address property if _UID is available or unitaddr is valid. 466 * Return AE_OK on success and error code on failure. 467 * N.B.: it returns AE_OK if _UID is unavailable and unitaddr is NULL. 468 */ 469 extern ACPI_STATUS acpidev_set_unitaddr(acpidev_walk_info_t *infop, 470 char **fmts, size_t nfmt, char *unitaddr); 471 472 /* 473 * Generate the device 'compatible' property list for a device based on: 474 * * Device HID if available 475 * * Device CIDs if available 476 * * property array passed in 477 * infop: pointer to walk information structure 478 * compat: pointer to property array 479 * acount: entries in property array 480 * Return AE_OK on success and error code on failure. 481 */ 482 extern ACPI_STATUS acpidev_set_compatible(acpidev_walk_info_t *infop, 483 char **compat, int acount); 484 485 /* 486 * Query ACPI device status. 487 * N.B.: it returns with all status bits set if _STA is not available. 488 */ 489 extern int acpidev_query_device_status(ACPI_HANDLE hdl); 490 491 /* 492 * Check whether device exists. 493 * Return false if device doesn't exist. 494 */ 495 extern boolean_t acpidev_check_device_present(int status); 496 497 /* 498 * Check whether device is enabled. 499 * Return false if device doesn't exist or hasn't been enabled. 500 */ 501 extern boolean_t acpidev_check_device_enabled(int status); 502 503 /* 504 * Match device ids with ACPI object's _HID and _CIDs. 505 * infop: ACPI object information structure 506 * ids: array of ACPI HIDs and CIDs 507 * count: entries in array 508 * Return TRUE if one item matches or num is zero, else FALSE. 509 */ 510 extern boolean_t acpidev_match_device_id(ACPI_DEVICE_INFO *infop, 511 char **ids, int count); 512 513 /* 514 * Implement almost the same function as AcpiGetDevices() with the following 515 * changes/enhancements: 516 * 1) Support limiting recursive levels. 517 * 2) Support matching multiple ids instead of one. 518 * 3) Report device without ACPI_STA_DEVICE_PRESENT flag which will be ignored 519 * by AcpiGetDevices(). 520 */ 521 extern ACPI_STATUS acpidev_get_device_by_id(ACPI_HANDLE hdl, 522 char **ids, int count, int maxdepth, boolean_t skip_non_exist, 523 ACPI_WALK_CALLBACK userfunc, void *userarg, void** retval); 524 525 /* Callback for APIC entry walker. */ 526 typedef ACPI_STATUS (* acpidev_apic_walker_t)(ACPI_SUBTABLE_HEADER *, void *); 527 528 /* 529 * Walk ACPI APIC entries from the first source available in following order: 530 * 1) ACPI buffer passed in if bufp isn't NULL. 531 * 2) Buffer returned by evaluating method if it isn't NULL. 532 * 3) MADT table as last resort. 533 */ 534 extern ACPI_STATUS acpidev_walk_apic(ACPI_BUFFER *bufp, ACPI_HANDLE hdl, 535 char *method, acpidev_apic_walker_t func, void *context); 536 537 /* 538 * Evaluate _OST method under object, which is used to support hotplug event. 539 * hdl: object handle 540 * code: _OST source event code 541 * stauts: _OST result status code 542 * bufp and len: optional third parameter for _OST. 543 */ 544 extern ACPI_STATUS acpidev_eval_ost(ACPI_HANDLE hdl, uint32_t code, 545 uint32_t status, char *bufp, size_t len); 546 547 /* 548 * Evaluate _EJ0 method under object. 549 */ 550 extern ACPI_STATUS acpidev_eval_ej0(ACPI_HANDLE hdl); 551 552 /* 553 * Evaluate _PXM method under object. 554 */ 555 extern ACPI_STATUS acpidev_eval_pxm(ACPI_HANDLE hdl, uint32_t *idp); 556 557 #endif /* _KERNEL */ 558 559 #ifdef __cplusplus 560 } 561 #endif 562 563 #endif /* _SYS_ACPIDEV_H */ 564