1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 5 * 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 19 */ 20 21 #ifndef _LINUX_ACPI_H 22 #define _LINUX_ACPI_H 23 24 #include <linux/errno.h> 25 #include <linux/ioport.h> /* for struct resource */ 26 #include <linux/resource_ext.h> 27 #include <linux/device.h> 28 #include <linux/property.h> 29 #include <linux/uuid.h> 30 31 #ifndef _LINUX 32 #define _LINUX 33 #endif 34 #include <acpi/acpi.h> 35 36 #ifdef CONFIG_ACPI 37 38 #include <linux/list.h> 39 #include <linux/mod_devicetable.h> 40 #include <linux/dynamic_debug.h> 41 #include <linux/module.h> 42 #include <linux/mutex.h> 43 44 #include <acpi/acpi_bus.h> 45 #include <acpi/acpi_drivers.h> 46 #include <acpi/acpi_numa.h> 47 #include <acpi/acpi_io.h> 48 #include <asm/acpi.h> 49 50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 51 { 52 return adev ? adev->handle : NULL; 53 } 54 55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 57 acpi_fwnode_handle(adev) : NULL) 58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 59 60 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void) 61 { 62 struct fwnode_handle *fwnode; 63 64 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL); 65 if (!fwnode) 66 return NULL; 67 68 fwnode->ops = &acpi_static_fwnode_ops; 69 70 return fwnode; 71 } 72 73 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode) 74 { 75 if (WARN_ON(!is_acpi_static_node(fwnode))) 76 return; 77 78 kfree(fwnode); 79 } 80 81 /** 82 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 83 * the PCI-defined class-code information 84 * 85 * @_cls : the class, subclass, prog-if triple for this device 86 * @_msk : the class mask for this device 87 * 88 * This macro is used to create a struct acpi_device_id that matches a 89 * specific PCI class. The .id and .driver_data fields will be left 90 * initialized with the default value. 91 */ 92 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 93 94 static inline bool has_acpi_companion(struct device *dev) 95 { 96 return is_acpi_device_node(dev->fwnode); 97 } 98 99 static inline void acpi_preset_companion(struct device *dev, 100 struct acpi_device *parent, u64 addr) 101 { 102 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); 103 } 104 105 static inline const char *acpi_dev_name(struct acpi_device *adev) 106 { 107 return dev_name(&adev->dev); 108 } 109 110 struct device *acpi_get_first_physical_node(struct acpi_device *adev); 111 112 enum acpi_irq_model_id { 113 ACPI_IRQ_MODEL_PIC = 0, 114 ACPI_IRQ_MODEL_IOAPIC, 115 ACPI_IRQ_MODEL_IOSAPIC, 116 ACPI_IRQ_MODEL_PLATFORM, 117 ACPI_IRQ_MODEL_GIC, 118 ACPI_IRQ_MODEL_COUNT 119 }; 120 121 extern enum acpi_irq_model_id acpi_irq_model; 122 123 enum acpi_interrupt_id { 124 ACPI_INTERRUPT_PMI = 1, 125 ACPI_INTERRUPT_INIT, 126 ACPI_INTERRUPT_CPEI, 127 ACPI_INTERRUPT_COUNT 128 }; 129 130 #define ACPI_SPACE_MEM 0 131 132 enum acpi_address_range_id { 133 ACPI_ADDRESS_RANGE_MEMORY = 1, 134 ACPI_ADDRESS_RANGE_RESERVED = 2, 135 ACPI_ADDRESS_RANGE_ACPI = 3, 136 ACPI_ADDRESS_RANGE_NVS = 4, 137 ACPI_ADDRESS_RANGE_COUNT 138 }; 139 140 141 /* Table Handlers */ 142 143 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 144 145 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, 146 const unsigned long end); 147 148 /* Debugger support */ 149 150 struct acpi_debugger_ops { 151 int (*create_thread)(acpi_osd_exec_callback function, void *context); 152 ssize_t (*write_log)(const char *msg); 153 ssize_t (*read_cmd)(char *buffer, size_t length); 154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length); 155 int (*notify_command_complete)(void); 156 }; 157 158 struct acpi_debugger { 159 const struct acpi_debugger_ops *ops; 160 struct module *owner; 161 struct mutex lock; 162 }; 163 164 #ifdef CONFIG_ACPI_DEBUGGER 165 int __init acpi_debugger_init(void); 166 int acpi_register_debugger(struct module *owner, 167 const struct acpi_debugger_ops *ops); 168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops); 169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context); 170 ssize_t acpi_debugger_write_log(const char *msg); 171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length); 172 int acpi_debugger_wait_command_ready(void); 173 int acpi_debugger_notify_command_complete(void); 174 #else 175 static inline int acpi_debugger_init(void) 176 { 177 return -ENODEV; 178 } 179 180 static inline int acpi_register_debugger(struct module *owner, 181 const struct acpi_debugger_ops *ops) 182 { 183 return -ENODEV; 184 } 185 186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops) 187 { 188 } 189 190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function, 191 void *context) 192 { 193 return -ENODEV; 194 } 195 196 static inline int acpi_debugger_write_log(const char *msg) 197 { 198 return -ENODEV; 199 } 200 201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length) 202 { 203 return -ENODEV; 204 } 205 206 static inline int acpi_debugger_wait_command_ready(void) 207 { 208 return -ENODEV; 209 } 210 211 static inline int acpi_debugger_notify_command_complete(void) 212 { 213 return -ENODEV; 214 } 215 #endif 216 217 #define BAD_MADT_ENTRY(entry, end) ( \ 218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 220 221 struct acpi_subtable_proc { 222 int id; 223 acpi_tbl_entry_handler handler; 224 int count; 225 }; 226 227 void __iomem *__acpi_map_table(unsigned long phys, unsigned long size); 228 void __acpi_unmap_table(void __iomem *map, unsigned long size); 229 int early_acpi_boot_init(void); 230 int acpi_boot_init (void); 231 void acpi_boot_table_init (void); 232 int acpi_mps_check (void); 233 int acpi_numa_init (void); 234 235 int acpi_table_init (void); 236 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 237 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 238 int entry_id, 239 acpi_tbl_entry_handler handler, 240 unsigned int max_entries); 241 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 242 struct acpi_subtable_proc *proc, int proc_num, 243 unsigned int max_entries); 244 int acpi_table_parse_madt(enum acpi_madt_type id, 245 acpi_tbl_entry_handler handler, 246 unsigned int max_entries); 247 int acpi_parse_mcfg (struct acpi_table_header *header); 248 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 249 250 /* the following numa functions are architecture-dependent */ 251 void acpi_numa_slit_init (struct acpi_table_slit *slit); 252 253 #if defined(CONFIG_X86) || defined(CONFIG_IA64) 254 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 255 #else 256 static inline void 257 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { } 258 #endif 259 260 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 261 262 #ifdef CONFIG_ARM64 263 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa); 264 #else 265 static inline void 266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { } 267 #endif 268 269 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 270 271 #ifndef PHYS_CPUID_INVALID 272 typedef u32 phys_cpuid_t; 273 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 274 #endif 275 276 static inline bool invalid_logical_cpuid(u32 cpuid) 277 { 278 return (int)cpuid < 0; 279 } 280 281 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 282 { 283 return phys_id == PHYS_CPUID_INVALID; 284 } 285 286 /* Validate the processor object's proc_id */ 287 bool acpi_duplicate_processor_id(int proc_id); 288 289 #ifdef CONFIG_ACPI_HOTPLUG_CPU 290 /* Arch dependent functions for cpu hotplug support */ 291 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, 292 int *pcpu); 293 int acpi_unmap_cpu(int cpu); 294 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 295 296 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 297 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 298 #endif 299 300 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 301 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 302 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 303 void acpi_irq_stats_init(void); 304 extern u32 acpi_irq_handled; 305 extern u32 acpi_irq_not_handled; 306 extern unsigned int acpi_sci_irq; 307 extern bool acpi_no_s5; 308 #define INVALID_ACPI_IRQ ((unsigned)-1) 309 static inline bool acpi_sci_irq_valid(void) 310 { 311 return acpi_sci_irq != INVALID_ACPI_IRQ; 312 } 313 314 extern int sbf_port; 315 extern unsigned long acpi_realmode_flags; 316 317 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 318 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 319 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 320 321 void acpi_set_irq_model(enum acpi_irq_model_id model, 322 struct fwnode_handle *fwnode); 323 324 #ifdef CONFIG_X86_IO_APIC 325 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 326 #else 327 #define acpi_get_override_irq(gsi, trigger, polarity) (-1) 328 #endif 329 /* 330 * This function undoes the effect of one call to acpi_register_gsi(). 331 * If this matches the last registration, any IRQ resources for gsi 332 * are freed. 333 */ 334 void acpi_unregister_gsi (u32 gsi); 335 336 struct pci_dev; 337 338 int acpi_pci_irq_enable (struct pci_dev *dev); 339 void acpi_penalize_isa_irq(int irq, int active); 340 bool acpi_isa_irq_available(int irq); 341 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 342 void acpi_pci_irq_disable (struct pci_dev *dev); 343 344 extern int ec_read(u8 addr, u8 *val); 345 extern int ec_write(u8 addr, u8 val); 346 extern int ec_transaction(u8 command, 347 const u8 *wdata, unsigned wdata_len, 348 u8 *rdata, unsigned rdata_len); 349 extern acpi_handle ec_get_handle(void); 350 351 extern bool acpi_is_pnp_device(struct acpi_device *); 352 353 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 354 355 typedef void (*wmi_notify_handler) (u32 value, void *context); 356 357 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 358 u32 method_id, 359 const struct acpi_buffer *in, 360 struct acpi_buffer *out); 361 extern acpi_status wmi_query_block(const char *guid, u8 instance, 362 struct acpi_buffer *out); 363 extern acpi_status wmi_set_block(const char *guid, u8 instance, 364 const struct acpi_buffer *in); 365 extern acpi_status wmi_install_notify_handler(const char *guid, 366 wmi_notify_handler handler, void *data); 367 extern acpi_status wmi_remove_notify_handler(const char *guid); 368 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 369 extern bool wmi_has_guid(const char *guid); 370 371 #endif /* CONFIG_ACPI_WMI */ 372 373 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 374 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 375 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 376 #define ACPI_VIDEO_BACKLIGHT 0x0008 377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 378 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 380 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 381 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 382 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 384 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 385 386 extern char acpi_video_backlight_string[]; 387 extern long acpi_is_video_device(acpi_handle handle); 388 extern int acpi_blacklisted(void); 389 extern void acpi_osi_setup(char *str); 390 extern bool acpi_osi_is_win8(void); 391 392 #ifdef CONFIG_ACPI_NUMA 393 int acpi_map_pxm_to_online_node(int pxm); 394 int acpi_get_node(acpi_handle handle); 395 #else 396 static inline int acpi_map_pxm_to_online_node(int pxm) 397 { 398 return 0; 399 } 400 static inline int acpi_get_node(acpi_handle handle) 401 { 402 return 0; 403 } 404 #endif 405 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 406 407 extern int pnpacpi_disabled; 408 409 #define PXM_INVAL (-1) 410 411 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 412 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 413 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 414 struct resource_win *win); 415 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 416 struct resource_win *win); 417 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 418 unsigned int acpi_dev_get_irq_type(int triggering, int polarity); 419 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 420 struct resource *res); 421 422 void acpi_dev_free_resource_list(struct list_head *list); 423 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 424 int (*preproc)(struct acpi_resource *, void *), 425 void *preproc_data); 426 int acpi_dev_get_dma_resources(struct acpi_device *adev, 427 struct list_head *list); 428 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 429 unsigned long types); 430 431 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 432 void *arg) 433 { 434 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 435 } 436 437 struct acpi_device *acpi_resource_consumer(struct resource *res); 438 439 int acpi_check_resource_conflict(const struct resource *res); 440 441 int acpi_check_region(resource_size_t start, resource_size_t n, 442 const char *name); 443 444 int acpi_resources_are_enforced(void); 445 446 #ifdef CONFIG_HIBERNATION 447 void __init acpi_no_s4_hw_signature(void); 448 #endif 449 450 #ifdef CONFIG_PM_SLEEP 451 void __init acpi_old_suspend_ordering(void); 452 void __init acpi_nvs_nosave(void); 453 void __init acpi_nvs_nosave_s3(void); 454 void __init acpi_sleep_no_blacklist(void); 455 #endif /* CONFIG_PM_SLEEP */ 456 457 struct acpi_osc_context { 458 char *uuid_str; /* UUID string */ 459 int rev; 460 struct acpi_buffer cap; /* list of DWORD capabilities */ 461 struct acpi_buffer ret; /* free by caller if success */ 462 }; 463 464 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 465 466 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 467 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 468 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 469 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 470 471 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 472 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 473 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 474 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 475 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 476 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 477 478 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 479 #define OSC_SB_PAD_SUPPORT 0x00000001 480 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 481 #define OSC_SB_PR3_SUPPORT 0x00000004 482 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 483 #define OSC_SB_APEI_SUPPORT 0x00000010 484 #define OSC_SB_CPC_SUPPORT 0x00000020 485 #define OSC_SB_CPCV2_SUPPORT 0x00000040 486 #define OSC_SB_PCLPI_SUPPORT 0x00000080 487 #define OSC_SB_OSLPI_SUPPORT 0x00000100 488 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 489 490 extern bool osc_sb_apei_support_acked; 491 extern bool osc_pc_lpi_support_confirmed; 492 493 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 494 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 495 #define OSC_PCI_ASPM_SUPPORT 0x00000002 496 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 497 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 498 #define OSC_PCI_MSI_SUPPORT 0x00000010 499 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 500 501 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 502 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 503 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 504 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 505 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 506 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 507 #define OSC_PCI_CONTROL_MASKS 0x0000001f 508 509 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 510 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 511 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 512 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 513 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 514 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 515 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 516 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 517 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 518 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 519 520 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 521 u32 *mask, u32 req); 522 523 /* Enable _OST when all relevant hotplug operations are enabled */ 524 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 525 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 526 defined(CONFIG_ACPI_CONTAINER) 527 #define ACPI_HOTPLUG_OST 528 #endif 529 530 /* _OST Source Event Code (OSPM Action) */ 531 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 532 #define ACPI_OST_EC_OSPM_EJECT 0x103 533 #define ACPI_OST_EC_OSPM_INSERTION 0x200 534 535 /* _OST General Processing Status Code */ 536 #define ACPI_OST_SC_SUCCESS 0x0 537 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 538 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 539 540 /* _OST OS Shutdown Processing (0x100) Status Code */ 541 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 542 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 543 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 544 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 545 546 /* _OST Ejection Request (0x3, 0x103) Status Code */ 547 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 548 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 549 #define ACPI_OST_SC_DEVICE_BUSY 0x82 550 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 551 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 552 553 /* _OST Insertion Request (0x200) Status Code */ 554 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 555 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 556 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 557 558 enum acpi_predicate { 559 all_versions, 560 less_than_or_equal, 561 equal, 562 greater_than_or_equal, 563 }; 564 565 /* Table must be terminted by a NULL entry */ 566 struct acpi_platform_list { 567 char oem_id[ACPI_OEM_ID_SIZE+1]; 568 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE+1]; 569 u32 oem_revision; 570 char *table; 571 enum acpi_predicate pred; 572 char *reason; 573 u32 data; 574 }; 575 int acpi_match_platform_list(const struct acpi_platform_list *plat); 576 577 extern void acpi_early_init(void); 578 extern void acpi_subsystem_init(void); 579 580 extern int acpi_nvs_register(__u64 start, __u64 size); 581 582 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 583 void *data); 584 585 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 586 const struct device *dev); 587 588 void *acpi_get_match_data(const struct device *dev); 589 extern bool acpi_driver_match_device(struct device *dev, 590 const struct device_driver *drv); 591 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 592 int acpi_device_modalias(struct device *, char *, int); 593 void acpi_walk_dep_device_list(acpi_handle handle); 594 595 struct platform_device *acpi_create_platform_device(struct acpi_device *, 596 struct property_entry *); 597 #define ACPI_PTR(_ptr) (_ptr) 598 599 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 600 { 601 adev->flags.visited = true; 602 } 603 604 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 605 { 606 adev->flags.visited = false; 607 } 608 609 enum acpi_reconfig_event { 610 ACPI_RECONFIG_DEVICE_ADD = 0, 611 ACPI_RECONFIG_DEVICE_REMOVE, 612 }; 613 614 int acpi_reconfig_notifier_register(struct notifier_block *nb); 615 int acpi_reconfig_notifier_unregister(struct notifier_block *nb); 616 617 #ifdef CONFIG_ACPI_GTDT 618 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count); 619 int acpi_gtdt_map_ppi(int type); 620 bool acpi_gtdt_c3stop(int type); 621 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count); 622 #endif 623 624 #else /* !CONFIG_ACPI */ 625 626 #define acpi_disabled 1 627 628 #define ACPI_COMPANION(dev) (NULL) 629 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 630 #define ACPI_HANDLE(dev) (NULL) 631 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 632 633 struct fwnode_handle; 634 635 static inline bool acpi_dev_found(const char *hid) 636 { 637 return false; 638 } 639 640 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) 641 { 642 return false; 643 } 644 645 static inline const char * 646 acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) 647 { 648 return NULL; 649 } 650 651 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 652 { 653 return false; 654 } 655 656 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 657 { 658 return false; 659 } 660 661 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 662 { 663 return NULL; 664 } 665 666 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 667 { 668 return false; 669 } 670 671 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 672 { 673 return NULL; 674 } 675 676 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode, 677 const char *name) 678 { 679 return false; 680 } 681 682 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 683 { 684 return NULL; 685 } 686 687 static inline bool has_acpi_companion(struct device *dev) 688 { 689 return false; 690 } 691 692 static inline void acpi_preset_companion(struct device *dev, 693 struct acpi_device *parent, u64 addr) 694 { 695 } 696 697 static inline const char *acpi_dev_name(struct acpi_device *adev) 698 { 699 return NULL; 700 } 701 702 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) 703 { 704 return NULL; 705 } 706 707 static inline void acpi_early_init(void) { } 708 static inline void acpi_subsystem_init(void) { } 709 710 static inline int early_acpi_boot_init(void) 711 { 712 return 0; 713 } 714 static inline int acpi_boot_init(void) 715 { 716 return 0; 717 } 718 719 static inline void acpi_boot_table_init(void) 720 { 721 return; 722 } 723 724 static inline int acpi_mps_check(void) 725 { 726 return 0; 727 } 728 729 static inline int acpi_check_resource_conflict(struct resource *res) 730 { 731 return 0; 732 } 733 734 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 735 const char *name) 736 { 737 return 0; 738 } 739 740 struct acpi_table_header; 741 static inline int acpi_table_parse(char *id, 742 int (*handler)(struct acpi_table_header *)) 743 { 744 return -ENODEV; 745 } 746 747 static inline int acpi_nvs_register(__u64 start, __u64 size) 748 { 749 return 0; 750 } 751 752 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 753 void *data) 754 { 755 return 0; 756 } 757 758 struct acpi_device_id; 759 760 static inline const struct acpi_device_id *acpi_match_device( 761 const struct acpi_device_id *ids, const struct device *dev) 762 { 763 return NULL; 764 } 765 766 static inline void *acpi_get_match_data(const struct device *dev) 767 { 768 return NULL; 769 } 770 771 static inline bool acpi_driver_match_device(struct device *dev, 772 const struct device_driver *drv) 773 { 774 return false; 775 } 776 777 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle, 778 const guid_t *guid, 779 int rev, int func, 780 union acpi_object *argv4) 781 { 782 return NULL; 783 } 784 785 static inline int acpi_device_uevent_modalias(struct device *dev, 786 struct kobj_uevent_env *env) 787 { 788 return -ENODEV; 789 } 790 791 static inline int acpi_device_modalias(struct device *dev, 792 char *buf, int size) 793 { 794 return -ENODEV; 795 } 796 797 static inline bool acpi_dma_supported(struct acpi_device *adev) 798 { 799 return false; 800 } 801 802 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) 803 { 804 return DEV_DMA_NOT_SUPPORTED; 805 } 806 807 static inline int acpi_dma_get_range(struct device *dev, u64 *dma_addr, 808 u64 *offset, u64 *size) 809 { 810 return -ENODEV; 811 } 812 813 static inline int acpi_dma_configure(struct device *dev, 814 enum dev_dma_attr attr) 815 { 816 return 0; 817 } 818 819 static inline void acpi_dma_deconfigure(struct device *dev) { } 820 821 #define ACPI_PTR(_ptr) (NULL) 822 823 static inline void acpi_device_set_enumerated(struct acpi_device *adev) 824 { 825 } 826 827 static inline void acpi_device_clear_enumerated(struct acpi_device *adev) 828 { 829 } 830 831 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb) 832 { 833 return -EINVAL; 834 } 835 836 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) 837 { 838 return -EINVAL; 839 } 840 841 static inline struct acpi_device *acpi_resource_consumer(struct resource *res) 842 { 843 return NULL; 844 } 845 846 #endif /* !CONFIG_ACPI */ 847 848 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 849 int acpi_ioapic_add(acpi_handle root); 850 #else 851 static inline int acpi_ioapic_add(acpi_handle root) { return 0; } 852 #endif 853 854 #ifdef CONFIG_ACPI 855 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 856 u32 pm1a_ctrl, u32 pm1b_ctrl)); 857 858 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 859 u32 pm1a_control, u32 pm1b_control); 860 861 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 862 u32 val_a, u32 val_b)); 863 864 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 865 u32 val_a, u32 val_b); 866 867 #ifdef CONFIG_X86 868 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 869 #else 870 static inline void arch_reserve_mem_area(acpi_physical_address addr, 871 size_t size) 872 { 873 } 874 #endif /* CONFIG_X86 */ 875 #else 876 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 877 #endif 878 879 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 880 int acpi_dev_suspend(struct device *dev, bool wakeup); 881 int acpi_dev_resume(struct device *dev); 882 int acpi_subsys_runtime_suspend(struct device *dev); 883 int acpi_subsys_runtime_resume(struct device *dev); 884 int acpi_dev_pm_attach(struct device *dev, bool power_on); 885 #else 886 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 887 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 888 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 889 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 890 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 891 { 892 return -ENODEV; 893 } 894 #endif 895 896 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 897 int acpi_dev_suspend_late(struct device *dev); 898 int acpi_subsys_prepare(struct device *dev); 899 void acpi_subsys_complete(struct device *dev); 900 int acpi_subsys_suspend_late(struct device *dev); 901 int acpi_subsys_suspend_noirq(struct device *dev); 902 int acpi_subsys_resume_noirq(struct device *dev); 903 int acpi_subsys_resume_early(struct device *dev); 904 int acpi_subsys_suspend(struct device *dev); 905 int acpi_subsys_freeze(struct device *dev); 906 int acpi_subsys_freeze_late(struct device *dev); 907 int acpi_subsys_freeze_noirq(struct device *dev); 908 int acpi_subsys_thaw_noirq(struct device *dev); 909 #else 910 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 911 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 912 static inline void acpi_subsys_complete(struct device *dev) {} 913 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 914 static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } 915 static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; } 916 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 917 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 918 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 919 static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; } 920 static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; } 921 static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; } 922 #endif 923 924 #ifdef CONFIG_ACPI 925 __printf(3, 4) 926 void acpi_handle_printk(const char *level, acpi_handle handle, 927 const char *fmt, ...); 928 #else /* !CONFIG_ACPI */ 929 static inline __printf(3, 4) void 930 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 931 #endif /* !CONFIG_ACPI */ 932 933 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 934 __printf(3, 4) 935 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 936 #else 937 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \ 938 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); 939 #endif 940 941 /* 942 * acpi_handle_<level>: Print message with ACPI prefix and object path 943 * 944 * These interfaces acquire the global namespace mutex to obtain an object 945 * path. In interrupt context, it shows the object path as <n/a>. 946 */ 947 #define acpi_handle_emerg(handle, fmt, ...) \ 948 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 949 #define acpi_handle_alert(handle, fmt, ...) \ 950 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 951 #define acpi_handle_crit(handle, fmt, ...) \ 952 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 953 #define acpi_handle_err(handle, fmt, ...) \ 954 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 955 #define acpi_handle_warn(handle, fmt, ...) \ 956 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 957 #define acpi_handle_notice(handle, fmt, ...) \ 958 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 959 #define acpi_handle_info(handle, fmt, ...) \ 960 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 961 962 #if defined(DEBUG) 963 #define acpi_handle_debug(handle, fmt, ...) \ 964 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 965 #else 966 #if defined(CONFIG_DYNAMIC_DEBUG) 967 #define acpi_handle_debug(handle, fmt, ...) \ 968 do { \ 969 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ 970 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \ 971 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \ 972 ##__VA_ARGS__); \ 973 } while (0) 974 #else 975 #define acpi_handle_debug(handle, fmt, ...) \ 976 ({ \ 977 if (0) \ 978 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 979 0; \ 980 }) 981 #endif 982 #endif 983 984 struct acpi_gpio_params { 985 unsigned int crs_entry_index; 986 unsigned int line_index; 987 bool active_low; 988 }; 989 990 struct acpi_gpio_mapping { 991 const char *name; 992 const struct acpi_gpio_params *data; 993 unsigned int size; 994 995 /* Ignore IoRestriction field */ 996 #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) 997 998 unsigned int quirks; 999 }; 1000 1001 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 1002 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1003 const struct acpi_gpio_mapping *gpios); 1004 1005 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 1006 { 1007 if (adev) 1008 adev->driver_gpios = NULL; 1009 } 1010 1011 int devm_acpi_dev_add_driver_gpios(struct device *dev, 1012 const struct acpi_gpio_mapping *gpios); 1013 void devm_acpi_dev_remove_driver_gpios(struct device *dev); 1014 1015 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1016 struct acpi_resource_gpio **agpio); 1017 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 1018 #else 1019 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 1020 const struct acpi_gpio_mapping *gpios) 1021 { 1022 return -ENXIO; 1023 } 1024 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 1025 1026 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev, 1027 const struct acpi_gpio_mapping *gpios) 1028 { 1029 return -ENXIO; 1030 } 1031 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {} 1032 1033 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, 1034 struct acpi_resource_gpio **agpio) 1035 { 1036 return false; 1037 } 1038 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 1039 { 1040 return -ENXIO; 1041 } 1042 #endif 1043 1044 /* Device properties */ 1045 1046 #define MAX_ACPI_REFERENCE_ARGS 8 1047 struct acpi_reference_args { 1048 struct acpi_device *adev; 1049 size_t nargs; 1050 u64 args[MAX_ACPI_REFERENCE_ARGS]; 1051 }; 1052 1053 #ifdef CONFIG_ACPI 1054 int acpi_dev_get_property(const struct acpi_device *adev, const char *name, 1055 acpi_object_type type, const union acpi_object **obj); 1056 int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1057 const char *name, size_t index, size_t num_args, 1058 struct acpi_reference_args *args); 1059 1060 static inline int acpi_node_get_property_reference( 1061 const struct fwnode_handle *fwnode, 1062 const char *name, size_t index, 1063 struct acpi_reference_args *args) 1064 { 1065 return __acpi_node_get_property_reference(fwnode, name, index, 1066 MAX_ACPI_REFERENCE_ARGS, args); 1067 } 1068 1069 int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, 1070 void **valptr); 1071 int acpi_dev_prop_read_single(struct acpi_device *adev, 1072 const char *propname, enum dev_prop_type proptype, 1073 void *val); 1074 int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1075 const char *propname, enum dev_prop_type proptype, 1076 void *val, size_t nval); 1077 int acpi_dev_prop_read(const struct acpi_device *adev, const char *propname, 1078 enum dev_prop_type proptype, void *val, size_t nval); 1079 1080 struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1081 struct fwnode_handle *child); 1082 struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); 1083 1084 struct fwnode_handle * 1085 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1086 struct fwnode_handle *prev); 1087 int acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1088 struct fwnode_handle **remote, 1089 struct fwnode_handle **port, 1090 struct fwnode_handle **endpoint); 1091 1092 struct acpi_probe_entry; 1093 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 1094 struct acpi_probe_entry *); 1095 1096 #define ACPI_TABLE_ID_LEN 5 1097 1098 /** 1099 * struct acpi_probe_entry - boot-time probing entry 1100 * @id: ACPI table name 1101 * @type: Optional subtable type to match 1102 * (if @id contains subtables) 1103 * @subtable_valid: Optional callback to check the validity of 1104 * the subtable 1105 * @probe_table: Callback to the driver being probed when table 1106 * match is successful 1107 * @probe_subtbl: Callback to the driver being probed when table and 1108 * subtable match (and optional callback is successful) 1109 * @driver_data: Sideband data provided back to the driver 1110 */ 1111 struct acpi_probe_entry { 1112 __u8 id[ACPI_TABLE_ID_LEN]; 1113 __u8 type; 1114 acpi_probe_entry_validate_subtbl subtable_valid; 1115 union { 1116 acpi_tbl_table_handler probe_table; 1117 acpi_tbl_entry_handler probe_subtbl; 1118 }; 1119 kernel_ulong_t driver_data; 1120 }; 1121 1122 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1123 static const struct acpi_probe_entry __acpi_probe_##name \ 1124 __used __section(__##table##_acpi_probe_table) \ 1125 = { \ 1126 .id = table_id, \ 1127 .type = subtable, \ 1128 .subtable_valid = valid, \ 1129 .probe_table = (acpi_tbl_table_handler)fn, \ 1130 .driver_data = data, \ 1131 } 1132 1133 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 1134 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 1135 1136 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 1137 1138 #define acpi_probe_device_table(t) \ 1139 ({ \ 1140 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 1141 ACPI_PROBE_TABLE_END(t); \ 1142 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 1143 (&ACPI_PROBE_TABLE_END(t) - \ 1144 &ACPI_PROBE_TABLE(t))); \ 1145 }) 1146 #else 1147 static inline int acpi_dev_get_property(struct acpi_device *adev, 1148 const char *name, acpi_object_type type, 1149 const union acpi_object **obj) 1150 { 1151 return -ENXIO; 1152 } 1153 1154 static inline int 1155 __acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1156 const char *name, size_t index, size_t num_args, 1157 struct acpi_reference_args *args) 1158 { 1159 return -ENXIO; 1160 } 1161 1162 static inline int 1163 acpi_node_get_property_reference(const struct fwnode_handle *fwnode, 1164 const char *name, size_t index, 1165 struct acpi_reference_args *args) 1166 { 1167 return -ENXIO; 1168 } 1169 1170 static inline int acpi_node_prop_get(const struct fwnode_handle *fwnode, 1171 const char *propname, 1172 void **valptr) 1173 { 1174 return -ENXIO; 1175 } 1176 1177 static inline int acpi_dev_prop_get(const struct acpi_device *adev, 1178 const char *propname, 1179 void **valptr) 1180 { 1181 return -ENXIO; 1182 } 1183 1184 static inline int acpi_dev_prop_read_single(const struct acpi_device *adev, 1185 const char *propname, 1186 enum dev_prop_type proptype, 1187 void *val) 1188 { 1189 return -ENXIO; 1190 } 1191 1192 static inline int acpi_node_prop_read(const struct fwnode_handle *fwnode, 1193 const char *propname, 1194 enum dev_prop_type proptype, 1195 void *val, size_t nval) 1196 { 1197 return -ENXIO; 1198 } 1199 1200 static inline int acpi_dev_prop_read(const struct acpi_device *adev, 1201 const char *propname, 1202 enum dev_prop_type proptype, 1203 void *val, size_t nval) 1204 { 1205 return -ENXIO; 1206 } 1207 1208 static inline struct fwnode_handle * 1209 acpi_get_next_subnode(const struct fwnode_handle *fwnode, 1210 struct fwnode_handle *child) 1211 { 1212 return NULL; 1213 } 1214 1215 static inline struct fwnode_handle * 1216 acpi_node_get_parent(const struct fwnode_handle *fwnode) 1217 { 1218 return NULL; 1219 } 1220 1221 static inline struct fwnode_handle * 1222 acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, 1223 struct fwnode_handle *prev) 1224 { 1225 return ERR_PTR(-ENXIO); 1226 } 1227 1228 static inline int 1229 acpi_graph_get_remote_endpoint(const struct fwnode_handle *fwnode, 1230 struct fwnode_handle **remote, 1231 struct fwnode_handle **port, 1232 struct fwnode_handle **endpoint) 1233 { 1234 return -ENXIO; 1235 } 1236 1237 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 1238 static const void * __acpi_table_##name[] \ 1239 __attribute__((unused)) \ 1240 = { (void *) table_id, \ 1241 (void *) subtable, \ 1242 (void *) valid, \ 1243 (void *) fn, \ 1244 (void *) data } 1245 1246 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 1247 #endif 1248 1249 #ifdef CONFIG_ACPI_TABLE_UPGRADE 1250 void acpi_table_upgrade(void); 1251 #else 1252 static inline void acpi_table_upgrade(void) { } 1253 #endif 1254 1255 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) 1256 extern bool acpi_has_watchdog(void); 1257 #else 1258 static inline bool acpi_has_watchdog(void) { return false; } 1259 #endif 1260 1261 #ifdef CONFIG_ACPI_SPCR_TABLE 1262 extern bool qdf2400_e44_present; 1263 int parse_spcr(bool earlycon); 1264 #else 1265 static inline int parse_spcr(bool earlycon) { return 0; } 1266 #endif 1267 1268 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI) 1269 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res); 1270 #else 1271 static inline 1272 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) 1273 { 1274 return -EINVAL; 1275 } 1276 #endif 1277 1278 #ifdef CONFIG_ACPI_LPIT 1279 int lpit_read_residency_count_address(u64 *address); 1280 #else 1281 static inline int lpit_read_residency_count_address(u64 *address) 1282 { 1283 return -EINVAL; 1284 } 1285 #endif 1286 1287 #endif /*_LINUX_ACPI_H*/ 1288