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 30 #ifndef _LINUX 31 #define _LINUX 32 #endif 33 #include <acpi/acpi.h> 34 35 #ifdef CONFIG_ACPI 36 37 #include <linux/list.h> 38 #include <linux/mod_devicetable.h> 39 #include <linux/dynamic_debug.h> 40 41 #include <acpi/acpi_bus.h> 42 #include <acpi/acpi_drivers.h> 43 #include <acpi/acpi_numa.h> 44 #include <acpi/acpi_io.h> 45 #include <asm/acpi.h> 46 47 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 48 { 49 return adev ? adev->handle : NULL; 50 } 51 52 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) 53 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ 54 acpi_fwnode_handle(adev) : NULL) 55 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 56 57 /** 58 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with 59 * the PCI-defined class-code information 60 * 61 * @_cls : the class, subclass, prog-if triple for this device 62 * @_msk : the class mask for this device 63 * 64 * This macro is used to create a struct acpi_device_id that matches a 65 * specific PCI class. The .id and .driver_data fields will be left 66 * initialized with the default value. 67 */ 68 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk), 69 70 static inline bool has_acpi_companion(struct device *dev) 71 { 72 return is_acpi_device_node(dev->fwnode); 73 } 74 75 static inline void acpi_preset_companion(struct device *dev, 76 struct acpi_device *parent, u64 addr) 77 { 78 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); 79 } 80 81 static inline const char *acpi_dev_name(struct acpi_device *adev) 82 { 83 return dev_name(&adev->dev); 84 } 85 86 enum acpi_irq_model_id { 87 ACPI_IRQ_MODEL_PIC = 0, 88 ACPI_IRQ_MODEL_IOAPIC, 89 ACPI_IRQ_MODEL_IOSAPIC, 90 ACPI_IRQ_MODEL_PLATFORM, 91 ACPI_IRQ_MODEL_GIC, 92 ACPI_IRQ_MODEL_COUNT 93 }; 94 95 extern enum acpi_irq_model_id acpi_irq_model; 96 97 enum acpi_interrupt_id { 98 ACPI_INTERRUPT_PMI = 1, 99 ACPI_INTERRUPT_INIT, 100 ACPI_INTERRUPT_CPEI, 101 ACPI_INTERRUPT_COUNT 102 }; 103 104 #define ACPI_SPACE_MEM 0 105 106 enum acpi_address_range_id { 107 ACPI_ADDRESS_RANGE_MEMORY = 1, 108 ACPI_ADDRESS_RANGE_RESERVED = 2, 109 ACPI_ADDRESS_RANGE_ACPI = 3, 110 ACPI_ADDRESS_RANGE_NVS = 4, 111 ACPI_ADDRESS_RANGE_COUNT 112 }; 113 114 115 /* Table Handlers */ 116 117 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 118 119 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, 120 const unsigned long end); 121 122 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE 123 void acpi_initrd_override(void *data, size_t size); 124 #else 125 static inline void acpi_initrd_override(void *data, size_t size) 126 { 127 } 128 #endif 129 130 #define BAD_MADT_ENTRY(entry, end) ( \ 131 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ 132 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) 133 134 struct acpi_subtable_proc { 135 int id; 136 acpi_tbl_entry_handler handler; 137 int count; 138 }; 139 140 char * __acpi_map_table (unsigned long phys_addr, unsigned long size); 141 void __acpi_unmap_table(char *map, unsigned long size); 142 int early_acpi_boot_init(void); 143 int acpi_boot_init (void); 144 void acpi_boot_table_init (void); 145 int acpi_mps_check (void); 146 int acpi_numa_init (void); 147 148 int acpi_table_init (void); 149 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 150 int __init acpi_parse_entries(char *id, unsigned long table_size, 151 acpi_tbl_entry_handler handler, 152 struct acpi_table_header *table_header, 153 int entry_id, unsigned int max_entries); 154 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 155 int entry_id, 156 acpi_tbl_entry_handler handler, 157 unsigned int max_entries); 158 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 159 int entry_id, 160 acpi_tbl_entry_handler handler, 161 unsigned int max_entries); 162 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, 163 struct acpi_subtable_proc *proc, int proc_num, 164 unsigned int max_entries); 165 int acpi_table_parse_madt(enum acpi_madt_type id, 166 acpi_tbl_entry_handler handler, 167 unsigned int max_entries); 168 int acpi_parse_mcfg (struct acpi_table_header *header); 169 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 170 171 /* the following four functions are architecture-dependent */ 172 void acpi_numa_slit_init (struct acpi_table_slit *slit); 173 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 174 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 175 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 176 void acpi_numa_arch_fixup(void); 177 178 #ifndef PHYS_CPUID_INVALID 179 typedef u32 phys_cpuid_t; 180 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1) 181 #endif 182 183 static inline bool invalid_logical_cpuid(u32 cpuid) 184 { 185 return (int)cpuid < 0; 186 } 187 188 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) 189 { 190 return phys_id == PHYS_CPUID_INVALID; 191 } 192 193 #ifdef CONFIG_ACPI_HOTPLUG_CPU 194 /* Arch dependent functions for cpu hotplug support */ 195 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu); 196 int acpi_unmap_cpu(int cpu); 197 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 198 199 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 200 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); 201 #endif 202 203 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 204 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 205 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); 206 void acpi_irq_stats_init(void); 207 extern u32 acpi_irq_handled; 208 extern u32 acpi_irq_not_handled; 209 extern unsigned int acpi_sci_irq; 210 #define INVALID_ACPI_IRQ ((unsigned)-1) 211 static inline bool acpi_sci_irq_valid(void) 212 { 213 return acpi_sci_irq != INVALID_ACPI_IRQ; 214 } 215 216 extern int sbf_port; 217 extern unsigned long acpi_realmode_flags; 218 219 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 220 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 221 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 222 223 void acpi_set_irq_model(enum acpi_irq_model_id model, 224 struct fwnode_handle *fwnode); 225 226 #ifdef CONFIG_X86_IO_APIC 227 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 228 #else 229 #define acpi_get_override_irq(gsi, trigger, polarity) (-1) 230 #endif 231 /* 232 * This function undoes the effect of one call to acpi_register_gsi(). 233 * If this matches the last registration, any IRQ resources for gsi 234 * are freed. 235 */ 236 void acpi_unregister_gsi (u32 gsi); 237 238 struct pci_dev; 239 240 int acpi_pci_irq_enable (struct pci_dev *dev); 241 void acpi_penalize_isa_irq(int irq, int active); 242 bool acpi_isa_irq_available(int irq); 243 void acpi_penalize_sci_irq(int irq, int trigger, int polarity); 244 void acpi_pci_irq_disable (struct pci_dev *dev); 245 246 extern int ec_read(u8 addr, u8 *val); 247 extern int ec_write(u8 addr, u8 val); 248 extern int ec_transaction(u8 command, 249 const u8 *wdata, unsigned wdata_len, 250 u8 *rdata, unsigned rdata_len); 251 extern acpi_handle ec_get_handle(void); 252 253 extern bool acpi_is_pnp_device(struct acpi_device *); 254 255 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 256 257 typedef void (*wmi_notify_handler) (u32 value, void *context); 258 259 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 260 u32 method_id, 261 const struct acpi_buffer *in, 262 struct acpi_buffer *out); 263 extern acpi_status wmi_query_block(const char *guid, u8 instance, 264 struct acpi_buffer *out); 265 extern acpi_status wmi_set_block(const char *guid, u8 instance, 266 const struct acpi_buffer *in); 267 extern acpi_status wmi_install_notify_handler(const char *guid, 268 wmi_notify_handler handler, void *data); 269 extern acpi_status wmi_remove_notify_handler(const char *guid); 270 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 271 extern bool wmi_has_guid(const char *guid); 272 273 #endif /* CONFIG_ACPI_WMI */ 274 275 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 276 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 277 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 278 #define ACPI_VIDEO_BACKLIGHT 0x0008 279 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 280 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 281 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 282 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 283 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 284 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 285 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 286 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 287 288 extern char acpi_video_backlight_string[]; 289 extern long acpi_is_video_device(acpi_handle handle); 290 extern int acpi_blacklisted(void); 291 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); 292 extern void acpi_osi_setup(char *str); 293 extern bool acpi_osi_is_win8(void); 294 295 #ifdef CONFIG_ACPI_NUMA 296 int acpi_map_pxm_to_online_node(int pxm); 297 int acpi_get_node(acpi_handle handle); 298 #else 299 static inline int acpi_map_pxm_to_online_node(int pxm) 300 { 301 return 0; 302 } 303 static inline int acpi_get_node(acpi_handle handle) 304 { 305 return 0; 306 } 307 #endif 308 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 309 310 extern int pnpacpi_disabled; 311 312 #define PXM_INVAL (-1) 313 314 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 315 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 316 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 317 struct resource_win *win); 318 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 319 struct resource_win *win); 320 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 321 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 322 struct resource *res); 323 324 void acpi_dev_free_resource_list(struct list_head *list); 325 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 326 int (*preproc)(struct acpi_resource *, void *), 327 void *preproc_data); 328 int acpi_dev_filter_resource_type(struct acpi_resource *ares, 329 unsigned long types); 330 331 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares, 332 void *arg) 333 { 334 return acpi_dev_filter_resource_type(ares, (unsigned long)arg); 335 } 336 337 int acpi_check_resource_conflict(const struct resource *res); 338 339 int acpi_check_region(resource_size_t start, resource_size_t n, 340 const char *name); 341 342 int acpi_resources_are_enforced(void); 343 344 #ifdef CONFIG_HIBERNATION 345 void __init acpi_no_s4_hw_signature(void); 346 #endif 347 348 #ifdef CONFIG_PM_SLEEP 349 void __init acpi_old_suspend_ordering(void); 350 void __init acpi_nvs_nosave(void); 351 void __init acpi_nvs_nosave_s3(void); 352 #endif /* CONFIG_PM_SLEEP */ 353 354 struct acpi_osc_context { 355 char *uuid_str; /* UUID string */ 356 int rev; 357 struct acpi_buffer cap; /* list of DWORD capabilities */ 358 struct acpi_buffer ret; /* free by caller if success */ 359 }; 360 361 acpi_status acpi_str_to_uuid(char *str, u8 *uuid); 362 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 363 364 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 365 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 366 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 367 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 368 369 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 370 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 371 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 372 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 373 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 374 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 375 376 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 377 #define OSC_SB_PAD_SUPPORT 0x00000001 378 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 379 #define OSC_SB_PR3_SUPPORT 0x00000004 380 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 381 #define OSC_SB_APEI_SUPPORT 0x00000010 382 #define OSC_SB_CPC_SUPPORT 0x00000020 383 384 extern bool osc_sb_apei_support_acked; 385 386 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 387 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 388 #define OSC_PCI_ASPM_SUPPORT 0x00000002 389 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 390 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 391 #define OSC_PCI_MSI_SUPPORT 0x00000010 392 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 393 394 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 395 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 396 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 397 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 398 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 399 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 400 #define OSC_PCI_CONTROL_MASKS 0x0000001f 401 402 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002 403 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004 404 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006 405 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008 406 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A 407 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B 408 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C 409 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D 410 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E 411 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F 412 413 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 414 u32 *mask, u32 req); 415 416 /* Enable _OST when all relevant hotplug operations are enabled */ 417 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 418 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 419 defined(CONFIG_ACPI_CONTAINER) 420 #define ACPI_HOTPLUG_OST 421 #endif 422 423 /* _OST Source Event Code (OSPM Action) */ 424 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 425 #define ACPI_OST_EC_OSPM_EJECT 0x103 426 #define ACPI_OST_EC_OSPM_INSERTION 0x200 427 428 /* _OST General Processing Status Code */ 429 #define ACPI_OST_SC_SUCCESS 0x0 430 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 431 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 432 433 /* _OST OS Shutdown Processing (0x100) Status Code */ 434 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 435 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 436 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 437 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 438 439 /* _OST Ejection Request (0x3, 0x103) Status Code */ 440 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 441 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 442 #define ACPI_OST_SC_DEVICE_BUSY 0x82 443 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 444 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 445 446 /* _OST Insertion Request (0x200) Status Code */ 447 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 448 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 449 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 450 451 extern void acpi_early_init(void); 452 extern void acpi_subsystem_init(void); 453 454 extern int acpi_nvs_register(__u64 start, __u64 size); 455 456 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 457 void *data); 458 459 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 460 const struct device *dev); 461 462 extern bool acpi_driver_match_device(struct device *dev, 463 const struct device_driver *drv); 464 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 465 int acpi_device_modalias(struct device *, char *, int); 466 void acpi_walk_dep_device_list(acpi_handle handle); 467 468 struct platform_device *acpi_create_platform_device(struct acpi_device *); 469 #define ACPI_PTR(_ptr) (_ptr) 470 471 #else /* !CONFIG_ACPI */ 472 473 #define acpi_disabled 1 474 475 #define ACPI_COMPANION(dev) (NULL) 476 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 477 #define ACPI_HANDLE(dev) (NULL) 478 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0), 479 480 struct fwnode_handle; 481 482 static inline bool is_acpi_node(struct fwnode_handle *fwnode) 483 { 484 return false; 485 } 486 487 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) 488 { 489 return false; 490 } 491 492 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) 493 { 494 return NULL; 495 } 496 497 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) 498 { 499 return false; 500 } 501 502 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) 503 { 504 return NULL; 505 } 506 507 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 508 { 509 return NULL; 510 } 511 512 static inline bool has_acpi_companion(struct device *dev) 513 { 514 return false; 515 } 516 517 static inline const char *acpi_dev_name(struct acpi_device *adev) 518 { 519 return NULL; 520 } 521 522 static inline void acpi_early_init(void) { } 523 static inline void acpi_subsystem_init(void) { } 524 525 static inline int early_acpi_boot_init(void) 526 { 527 return 0; 528 } 529 static inline int acpi_boot_init(void) 530 { 531 return 0; 532 } 533 534 static inline void acpi_boot_table_init(void) 535 { 536 return; 537 } 538 539 static inline int acpi_mps_check(void) 540 { 541 return 0; 542 } 543 544 static inline int acpi_check_resource_conflict(struct resource *res) 545 { 546 return 0; 547 } 548 549 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 550 const char *name) 551 { 552 return 0; 553 } 554 555 struct acpi_table_header; 556 static inline int acpi_table_parse(char *id, 557 int (*handler)(struct acpi_table_header *)) 558 { 559 return -ENODEV; 560 } 561 562 static inline int acpi_nvs_register(__u64 start, __u64 size) 563 { 564 return 0; 565 } 566 567 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 568 void *data) 569 { 570 return 0; 571 } 572 573 struct acpi_device_id; 574 575 static inline const struct acpi_device_id *acpi_match_device( 576 const struct acpi_device_id *ids, const struct device *dev) 577 { 578 return NULL; 579 } 580 581 static inline bool acpi_driver_match_device(struct device *dev, 582 const struct device_driver *drv) 583 { 584 return false; 585 } 586 587 static inline int acpi_device_uevent_modalias(struct device *dev, 588 struct kobj_uevent_env *env) 589 { 590 return -ENODEV; 591 } 592 593 static inline int acpi_device_modalias(struct device *dev, 594 char *buf, int size) 595 { 596 return -ENODEV; 597 } 598 599 static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) 600 { 601 return false; 602 } 603 604 #define ACPI_PTR(_ptr) (NULL) 605 606 #endif /* !CONFIG_ACPI */ 607 608 #ifdef CONFIG_ACPI 609 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 610 u32 pm1a_ctrl, u32 pm1b_ctrl)); 611 612 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 613 u32 pm1a_control, u32 pm1b_control); 614 615 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 616 u32 val_a, u32 val_b)); 617 618 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 619 u32 val_a, u32 val_b); 620 621 #ifdef CONFIG_X86 622 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 623 #else 624 static inline void arch_reserve_mem_area(acpi_physical_address addr, 625 size_t size) 626 { 627 } 628 #endif /* CONFIG_X86 */ 629 #else 630 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 631 #endif 632 633 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 634 int acpi_dev_runtime_suspend(struct device *dev); 635 int acpi_dev_runtime_resume(struct device *dev); 636 int acpi_subsys_runtime_suspend(struct device *dev); 637 int acpi_subsys_runtime_resume(struct device *dev); 638 struct acpi_device *acpi_dev_pm_get_node(struct device *dev); 639 int acpi_dev_pm_attach(struct device *dev, bool power_on); 640 #else 641 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 642 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 643 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 644 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 645 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev) 646 { 647 return NULL; 648 } 649 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 650 { 651 return -ENODEV; 652 } 653 #endif 654 655 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 656 int acpi_dev_suspend_late(struct device *dev); 657 int acpi_dev_resume_early(struct device *dev); 658 int acpi_subsys_prepare(struct device *dev); 659 void acpi_subsys_complete(struct device *dev); 660 int acpi_subsys_suspend_late(struct device *dev); 661 int acpi_subsys_resume_early(struct device *dev); 662 int acpi_subsys_suspend(struct device *dev); 663 int acpi_subsys_freeze(struct device *dev); 664 #else 665 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; } 666 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 667 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 668 static inline void acpi_subsys_complete(struct device *dev) {} 669 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 670 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 671 static inline int acpi_subsys_suspend(struct device *dev) { return 0; } 672 static inline int acpi_subsys_freeze(struct device *dev) { return 0; } 673 #endif 674 675 #ifdef CONFIG_ACPI 676 __printf(3, 4) 677 void acpi_handle_printk(const char *level, acpi_handle handle, 678 const char *fmt, ...); 679 #else /* !CONFIG_ACPI */ 680 static inline __printf(3, 4) void 681 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 682 #endif /* !CONFIG_ACPI */ 683 684 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG) 685 __printf(3, 4) 686 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...); 687 #else 688 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \ 689 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); 690 #endif 691 692 /* 693 * acpi_handle_<level>: Print message with ACPI prefix and object path 694 * 695 * These interfaces acquire the global namespace mutex to obtain an object 696 * path. In interrupt context, it shows the object path as <n/a>. 697 */ 698 #define acpi_handle_emerg(handle, fmt, ...) \ 699 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 700 #define acpi_handle_alert(handle, fmt, ...) \ 701 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 702 #define acpi_handle_crit(handle, fmt, ...) \ 703 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 704 #define acpi_handle_err(handle, fmt, ...) \ 705 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 706 #define acpi_handle_warn(handle, fmt, ...) \ 707 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 708 #define acpi_handle_notice(handle, fmt, ...) \ 709 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 710 #define acpi_handle_info(handle, fmt, ...) \ 711 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 712 713 #if defined(DEBUG) 714 #define acpi_handle_debug(handle, fmt, ...) \ 715 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 716 #else 717 #if defined(CONFIG_DYNAMIC_DEBUG) 718 #define acpi_handle_debug(handle, fmt, ...) \ 719 do { \ 720 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ 721 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \ 722 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \ 723 ##__VA_ARGS__); \ 724 } while (0) 725 #else 726 #define acpi_handle_debug(handle, fmt, ...) \ 727 ({ \ 728 if (0) \ 729 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 730 0; \ 731 }) 732 #endif 733 #endif 734 735 struct acpi_gpio_params { 736 unsigned int crs_entry_index; 737 unsigned int line_index; 738 bool active_low; 739 }; 740 741 struct acpi_gpio_mapping { 742 const char *name; 743 const struct acpi_gpio_params *data; 744 unsigned int size; 745 }; 746 747 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB) 748 int acpi_dev_add_driver_gpios(struct acpi_device *adev, 749 const struct acpi_gpio_mapping *gpios); 750 751 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) 752 { 753 if (adev) 754 adev->driver_gpios = NULL; 755 } 756 757 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); 758 #else 759 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev, 760 const struct acpi_gpio_mapping *gpios) 761 { 762 return -ENXIO; 763 } 764 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {} 765 766 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) 767 { 768 return -ENXIO; 769 } 770 #endif 771 772 /* Device properties */ 773 774 #define MAX_ACPI_REFERENCE_ARGS 8 775 struct acpi_reference_args { 776 struct acpi_device *adev; 777 size_t nargs; 778 u64 args[MAX_ACPI_REFERENCE_ARGS]; 779 }; 780 781 #ifdef CONFIG_ACPI 782 int acpi_dev_get_property(struct acpi_device *adev, const char *name, 783 acpi_object_type type, const union acpi_object **obj); 784 int acpi_node_get_property_reference(struct fwnode_handle *fwnode, 785 const char *name, size_t index, 786 struct acpi_reference_args *args); 787 788 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname, 789 void **valptr); 790 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, 791 enum dev_prop_type proptype, void *val); 792 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname, 793 enum dev_prop_type proptype, void *val, size_t nval); 794 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, 795 enum dev_prop_type proptype, void *val, size_t nval); 796 797 struct fwnode_handle *acpi_get_next_subnode(struct device *dev, 798 struct fwnode_handle *subnode); 799 800 struct acpi_probe_entry; 801 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, 802 struct acpi_probe_entry *); 803 804 #define ACPI_TABLE_ID_LEN 5 805 806 /** 807 * struct acpi_probe_entry - boot-time probing entry 808 * @id: ACPI table name 809 * @type: Optional subtable type to match 810 * (if @id contains subtables) 811 * @subtable_valid: Optional callback to check the validity of 812 * the subtable 813 * @probe_table: Callback to the driver being probed when table 814 * match is successful 815 * @probe_subtbl: Callback to the driver being probed when table and 816 * subtable match (and optional callback is successful) 817 * @driver_data: Sideband data provided back to the driver 818 */ 819 struct acpi_probe_entry { 820 __u8 id[ACPI_TABLE_ID_LEN]; 821 __u8 type; 822 acpi_probe_entry_validate_subtbl subtable_valid; 823 union { 824 acpi_tbl_table_handler probe_table; 825 acpi_tbl_entry_handler probe_subtbl; 826 }; 827 kernel_ulong_t driver_data; 828 }; 829 830 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ 831 static const struct acpi_probe_entry __acpi_probe_##name \ 832 __used __section(__##table##_acpi_probe_table) \ 833 = { \ 834 .id = table_id, \ 835 .type = subtable, \ 836 .subtable_valid = valid, \ 837 .probe_table = (acpi_tbl_table_handler)fn, \ 838 .driver_data = data, \ 839 } 840 841 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table 842 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end 843 844 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); 845 846 #define acpi_probe_device_table(t) \ 847 ({ \ 848 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ 849 ACPI_PROBE_TABLE_END(t); \ 850 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ 851 (&ACPI_PROBE_TABLE_END(t) - \ 852 &ACPI_PROBE_TABLE(t))); \ 853 }) 854 #else 855 static inline int acpi_dev_get_property(struct acpi_device *adev, 856 const char *name, acpi_object_type type, 857 const union acpi_object **obj) 858 { 859 return -ENXIO; 860 } 861 862 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode, 863 const char *name, const char *cells_name, 864 size_t index, struct acpi_reference_args *args) 865 { 866 return -ENXIO; 867 } 868 869 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode, 870 const char *propname, 871 void **valptr) 872 { 873 return -ENXIO; 874 } 875 876 static inline int acpi_dev_prop_get(struct acpi_device *adev, 877 const char *propname, 878 void **valptr) 879 { 880 return -ENXIO; 881 } 882 883 static inline int acpi_dev_prop_read_single(struct acpi_device *adev, 884 const char *propname, 885 enum dev_prop_type proptype, 886 void *val) 887 { 888 return -ENXIO; 889 } 890 891 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode, 892 const char *propname, 893 enum dev_prop_type proptype, 894 void *val, size_t nval) 895 { 896 return -ENXIO; 897 } 898 899 static inline int acpi_dev_prop_read(struct acpi_device *adev, 900 const char *propname, 901 enum dev_prop_type proptype, 902 void *val, size_t nval) 903 { 904 return -ENXIO; 905 } 906 907 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev, 908 struct fwnode_handle *subnode) 909 { 910 return NULL; 911 } 912 913 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \ 914 static const void * __acpi_table_##name[] \ 915 __attribute__((unused)) \ 916 = { (void *) table_id, \ 917 (void *) subtable, \ 918 (void *) valid, \ 919 (void *) fn, \ 920 (void *) data } 921 922 #define acpi_probe_device_table(t) ({ int __r = 0; __r;}) 923 #endif 924 925 #endif /*_LINUX_ACPI_H*/ 926