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 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 23 */ 24 25 #ifndef _LINUX_ACPI_H 26 #define _LINUX_ACPI_H 27 28 #include <linux/errno.h> 29 #include <linux/ioport.h> /* for struct resource */ 30 #include <linux/device.h> 31 32 #ifdef CONFIG_ACPI 33 34 #ifndef _LINUX 35 #define _LINUX 36 #endif 37 38 #include <linux/list.h> 39 #include <linux/mod_devicetable.h> 40 41 #include <acpi/acpi.h> 42 #include <acpi/acpi_bus.h> 43 #include <acpi/acpi_drivers.h> 44 #include <acpi/acpi_numa.h> 45 #include <acpi/acpi_io.h> 46 #include <asm/acpi.h> 47 48 static inline acpi_handle acpi_device_handle(struct acpi_device *adev) 49 { 50 return adev ? adev->handle : NULL; 51 } 52 53 #define ACPI_COMPANION(dev) ((dev)->acpi_node.companion) 54 #define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev) 55 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) 56 57 static inline void acpi_preset_companion(struct device *dev, 58 struct acpi_device *parent, u64 addr) 59 { 60 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); 61 } 62 63 static inline const char *acpi_dev_name(struct acpi_device *adev) 64 { 65 return dev_name(&adev->dev); 66 } 67 68 enum acpi_irq_model_id { 69 ACPI_IRQ_MODEL_PIC = 0, 70 ACPI_IRQ_MODEL_IOAPIC, 71 ACPI_IRQ_MODEL_IOSAPIC, 72 ACPI_IRQ_MODEL_PLATFORM, 73 ACPI_IRQ_MODEL_COUNT 74 }; 75 76 extern enum acpi_irq_model_id acpi_irq_model; 77 78 enum acpi_interrupt_id { 79 ACPI_INTERRUPT_PMI = 1, 80 ACPI_INTERRUPT_INIT, 81 ACPI_INTERRUPT_CPEI, 82 ACPI_INTERRUPT_COUNT 83 }; 84 85 #define ACPI_SPACE_MEM 0 86 87 enum acpi_address_range_id { 88 ACPI_ADDRESS_RANGE_MEMORY = 1, 89 ACPI_ADDRESS_RANGE_RESERVED = 2, 90 ACPI_ADDRESS_RANGE_ACPI = 3, 91 ACPI_ADDRESS_RANGE_NVS = 4, 92 ACPI_ADDRESS_RANGE_COUNT 93 }; 94 95 96 /* Table Handlers */ 97 98 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table); 99 100 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header, 101 const unsigned long end); 102 103 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE 104 void acpi_initrd_override(void *data, size_t size); 105 #else 106 static inline void acpi_initrd_override(void *data, size_t size) 107 { 108 } 109 #endif 110 111 char * __acpi_map_table (unsigned long phys_addr, unsigned long size); 112 void __acpi_unmap_table(char *map, unsigned long size); 113 int early_acpi_boot_init(void); 114 int acpi_boot_init (void); 115 void acpi_boot_table_init (void); 116 int acpi_mps_check (void); 117 int acpi_numa_init (void); 118 119 int acpi_table_init (void); 120 int acpi_table_parse(char *id, acpi_tbl_table_handler handler); 121 int __init acpi_table_parse_entries(char *id, unsigned long table_size, 122 int entry_id, 123 acpi_tbl_entry_handler handler, 124 unsigned int max_entries); 125 int acpi_table_parse_madt(enum acpi_madt_type id, 126 acpi_tbl_entry_handler handler, 127 unsigned int max_entries); 128 int acpi_parse_mcfg (struct acpi_table_header *header); 129 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 130 131 /* the following four functions are architecture-dependent */ 132 void acpi_numa_slit_init (struct acpi_table_slit *slit); 133 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 134 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa); 135 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 136 void acpi_numa_arch_fixup(void); 137 138 #ifdef CONFIG_ACPI_HOTPLUG_CPU 139 /* Arch dependent functions for cpu hotplug support */ 140 int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu); 141 int acpi_unmap_lsapic(int cpu); 142 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 143 144 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 145 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 146 void acpi_irq_stats_init(void); 147 extern u32 acpi_irq_handled; 148 extern u32 acpi_irq_not_handled; 149 150 extern int sbf_port; 151 extern unsigned long acpi_realmode_flags; 152 153 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity); 154 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq); 155 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi); 156 157 #ifdef CONFIG_X86_IO_APIC 158 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity); 159 #else 160 #define acpi_get_override_irq(gsi, trigger, polarity) (-1) 161 #endif 162 /* 163 * This function undoes the effect of one call to acpi_register_gsi(). 164 * If this matches the last registration, any IRQ resources for gsi 165 * are freed. 166 */ 167 void acpi_unregister_gsi (u32 gsi); 168 169 struct pci_dev; 170 171 int acpi_pci_irq_enable (struct pci_dev *dev); 172 void acpi_penalize_isa_irq(int irq, int active); 173 174 void acpi_pci_irq_disable (struct pci_dev *dev); 175 176 extern int ec_read(u8 addr, u8 *val); 177 extern int ec_write(u8 addr, u8 val); 178 extern int ec_transaction(u8 command, 179 const u8 *wdata, unsigned wdata_len, 180 u8 *rdata, unsigned rdata_len); 181 extern acpi_handle ec_get_handle(void); 182 183 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) 184 185 typedef void (*wmi_notify_handler) (u32 value, void *context); 186 187 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance, 188 u32 method_id, 189 const struct acpi_buffer *in, 190 struct acpi_buffer *out); 191 extern acpi_status wmi_query_block(const char *guid, u8 instance, 192 struct acpi_buffer *out); 193 extern acpi_status wmi_set_block(const char *guid, u8 instance, 194 const struct acpi_buffer *in); 195 extern acpi_status wmi_install_notify_handler(const char *guid, 196 wmi_notify_handler handler, void *data); 197 extern acpi_status wmi_remove_notify_handler(const char *guid); 198 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out); 199 extern bool wmi_has_guid(const char *guid); 200 201 #endif /* CONFIG_ACPI_WMI */ 202 203 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001 204 #define ACPI_VIDEO_DEVICE_POSTING 0x0002 205 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 206 #define ACPI_VIDEO_BACKLIGHT 0x0008 207 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 208 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 209 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 210 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 211 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 212 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 213 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 214 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 215 216 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) 217 218 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle); 219 extern long acpi_is_video_device(acpi_handle handle); 220 extern void acpi_video_dmi_promote_vendor(void); 221 extern void acpi_video_dmi_demote_vendor(void); 222 extern int acpi_video_backlight_support(void); 223 extern int acpi_video_display_switch_support(void); 224 225 #else 226 227 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle) 228 { 229 return 0; 230 } 231 232 static inline long acpi_is_video_device(acpi_handle handle) 233 { 234 return 0; 235 } 236 237 static inline void acpi_video_dmi_promote_vendor(void) 238 { 239 } 240 241 static inline void acpi_video_dmi_demote_vendor(void) 242 { 243 } 244 245 static inline int acpi_video_backlight_support(void) 246 { 247 return 0; 248 } 249 250 static inline int acpi_video_display_switch_support(void) 251 { 252 return 0; 253 } 254 255 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */ 256 257 extern int acpi_blacklisted(void); 258 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d); 259 extern void acpi_osi_setup(char *str); 260 261 #ifdef CONFIG_ACPI_NUMA 262 int acpi_get_pxm(acpi_handle handle); 263 int acpi_get_node(acpi_handle *handle); 264 #else 265 static inline int acpi_get_pxm(acpi_handle handle) 266 { 267 return 0; 268 } 269 static inline int acpi_get_node(acpi_handle *handle) 270 { 271 return 0; 272 } 273 #endif 274 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 275 276 extern int pnpacpi_disabled; 277 278 #define PXM_INVAL (-1) 279 280 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res); 281 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res); 282 bool acpi_dev_resource_address_space(struct acpi_resource *ares, 283 struct resource *res); 284 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares, 285 struct resource *res); 286 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable); 287 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, 288 struct resource *res); 289 290 struct resource_list_entry { 291 struct list_head node; 292 struct resource res; 293 }; 294 295 void acpi_dev_free_resource_list(struct list_head *list); 296 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, 297 int (*preproc)(struct acpi_resource *, void *), 298 void *preproc_data); 299 300 int acpi_check_resource_conflict(const struct resource *res); 301 302 int acpi_check_region(resource_size_t start, resource_size_t n, 303 const char *name); 304 305 int acpi_resources_are_enforced(void); 306 307 #ifdef CONFIG_HIBERNATION 308 void __init acpi_no_s4_hw_signature(void); 309 #endif 310 311 #ifdef CONFIG_PM_SLEEP 312 void __init acpi_old_suspend_ordering(void); 313 void __init acpi_nvs_nosave(void); 314 void __init acpi_nvs_nosave_s3(void); 315 #endif /* CONFIG_PM_SLEEP */ 316 317 struct acpi_osc_context { 318 char *uuid_str; /* UUID string */ 319 int rev; 320 struct acpi_buffer cap; /* list of DWORD capabilities */ 321 struct acpi_buffer ret; /* free by caller if success */ 322 }; 323 324 acpi_status acpi_str_to_uuid(char *str, u8 *uuid); 325 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); 326 327 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */ 328 #define OSC_QUERY_DWORD 0 /* DWORD 1 */ 329 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */ 330 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */ 331 332 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */ 333 #define OSC_QUERY_ENABLE 0x00000001 /* input */ 334 #define OSC_REQUEST_ERROR 0x00000002 /* return */ 335 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */ 336 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */ 337 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */ 338 339 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */ 340 #define OSC_SB_PAD_SUPPORT 0x00000001 341 #define OSC_SB_PPC_OST_SUPPORT 0x00000002 342 #define OSC_SB_PR3_SUPPORT 0x00000004 343 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008 344 #define OSC_SB_APEI_SUPPORT 0x00000010 345 #define OSC_SB_CPC_SUPPORT 0x00000020 346 347 extern bool osc_sb_apei_support_acked; 348 349 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */ 350 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001 351 #define OSC_PCI_ASPM_SUPPORT 0x00000002 352 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004 353 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008 354 #define OSC_PCI_MSI_SUPPORT 0x00000010 355 #define OSC_PCI_SUPPORT_MASKS 0x0000001f 356 357 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */ 358 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001 359 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002 360 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004 361 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008 362 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010 363 #define OSC_PCI_CONTROL_MASKS 0x0000001f 364 365 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle, 366 u32 *mask, u32 req); 367 368 /* Enable _OST when all relevant hotplug operations are enabled */ 369 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \ 370 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \ 371 defined(CONFIG_ACPI_CONTAINER) 372 #define ACPI_HOTPLUG_OST 373 #endif 374 375 /* _OST Source Event Code (OSPM Action) */ 376 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100 377 #define ACPI_OST_EC_OSPM_EJECT 0x103 378 #define ACPI_OST_EC_OSPM_INSERTION 0x200 379 380 /* _OST General Processing Status Code */ 381 #define ACPI_OST_SC_SUCCESS 0x0 382 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1 383 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2 384 385 /* _OST OS Shutdown Processing (0x100) Status Code */ 386 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80 387 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81 388 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82 389 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83 390 391 /* _OST Ejection Request (0x3, 0x103) Status Code */ 392 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80 393 #define ACPI_OST_SC_DEVICE_IN_USE 0x81 394 #define ACPI_OST_SC_DEVICE_BUSY 0x82 395 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83 396 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84 397 398 /* _OST Insertion Request (0x200) Status Code */ 399 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80 400 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81 401 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82 402 403 extern void acpi_early_init(void); 404 405 extern int acpi_nvs_register(__u64 start, __u64 size); 406 407 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 408 void *data); 409 410 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, 411 const struct device *dev); 412 413 static inline bool acpi_driver_match_device(struct device *dev, 414 const struct device_driver *drv) 415 { 416 return !!acpi_match_device(drv->acpi_match_table, dev); 417 } 418 419 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); 420 int acpi_device_modalias(struct device *, char *, int); 421 422 #define ACPI_PTR(_ptr) (_ptr) 423 424 #else /* !CONFIG_ACPI */ 425 426 #define acpi_disabled 1 427 428 #define ACPI_COMPANION(dev) (NULL) 429 #define ACPI_COMPANION_SET(dev, adev) do { } while (0) 430 #define ACPI_HANDLE(dev) (NULL) 431 432 static inline const char *acpi_dev_name(struct acpi_device *adev) 433 { 434 return NULL; 435 } 436 437 static inline void acpi_early_init(void) { } 438 439 static inline int early_acpi_boot_init(void) 440 { 441 return 0; 442 } 443 static inline int acpi_boot_init(void) 444 { 445 return 0; 446 } 447 448 static inline void acpi_boot_table_init(void) 449 { 450 return; 451 } 452 453 static inline int acpi_mps_check(void) 454 { 455 return 0; 456 } 457 458 static inline int acpi_check_resource_conflict(struct resource *res) 459 { 460 return 0; 461 } 462 463 static inline int acpi_check_region(resource_size_t start, resource_size_t n, 464 const char *name) 465 { 466 return 0; 467 } 468 469 struct acpi_table_header; 470 static inline int acpi_table_parse(char *id, 471 int (*handler)(struct acpi_table_header *)) 472 { 473 return -ENODEV; 474 } 475 476 static inline int acpi_nvs_register(__u64 start, __u64 size) 477 { 478 return 0; 479 } 480 481 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), 482 void *data) 483 { 484 return 0; 485 } 486 487 struct acpi_device_id; 488 489 static inline const struct acpi_device_id *acpi_match_device( 490 const struct acpi_device_id *ids, const struct device *dev) 491 { 492 return NULL; 493 } 494 495 static inline bool acpi_driver_match_device(struct device *dev, 496 const struct device_driver *drv) 497 { 498 return false; 499 } 500 501 static inline int acpi_device_uevent_modalias(struct device *dev, 502 struct kobj_uevent_env *env) 503 { 504 return -ENODEV; 505 } 506 507 static inline int acpi_device_modalias(struct device *dev, 508 char *buf, int size) 509 { 510 return -ENODEV; 511 } 512 513 #define ACPI_PTR(_ptr) (NULL) 514 515 #endif /* !CONFIG_ACPI */ 516 517 #ifdef CONFIG_ACPI 518 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, 519 u32 pm1a_ctrl, u32 pm1b_ctrl)); 520 521 acpi_status acpi_os_prepare_sleep(u8 sleep_state, 522 u32 pm1a_control, u32 pm1b_control); 523 524 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, 525 u32 val_a, u32 val_b)); 526 527 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, 528 u32 val_a, u32 val_b); 529 530 #ifdef CONFIG_X86 531 void arch_reserve_mem_area(acpi_physical_address addr, size_t size); 532 #else 533 static inline void arch_reserve_mem_area(acpi_physical_address addr, 534 size_t size) 535 { 536 } 537 #endif /* CONFIG_X86 */ 538 #else 539 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) 540 #endif 541 542 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME) 543 int acpi_dev_runtime_suspend(struct device *dev); 544 int acpi_dev_runtime_resume(struct device *dev); 545 int acpi_subsys_runtime_suspend(struct device *dev); 546 int acpi_subsys_runtime_resume(struct device *dev); 547 #else 548 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; } 549 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; } 550 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; } 551 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; } 552 #endif 553 554 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP) 555 int acpi_dev_suspend_late(struct device *dev); 556 int acpi_dev_resume_early(struct device *dev); 557 int acpi_subsys_prepare(struct device *dev); 558 int acpi_subsys_suspend_late(struct device *dev); 559 int acpi_subsys_resume_early(struct device *dev); 560 #else 561 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; } 562 static inline int acpi_dev_resume_early(struct device *dev) { return 0; } 563 static inline int acpi_subsys_prepare(struct device *dev) { return 0; } 564 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } 565 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } 566 #endif 567 568 #if defined(CONFIG_ACPI) && defined(CONFIG_PM) 569 struct acpi_device *acpi_dev_pm_get_node(struct device *dev); 570 int acpi_dev_pm_attach(struct device *dev, bool power_on); 571 void acpi_dev_pm_detach(struct device *dev, bool power_off); 572 #else 573 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev) 574 { 575 return NULL; 576 } 577 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on) 578 { 579 return -ENODEV; 580 } 581 static inline void acpi_dev_pm_detach(struct device *dev, bool power_off) {} 582 #endif 583 584 #ifdef CONFIG_ACPI 585 __printf(3, 4) 586 void acpi_handle_printk(const char *level, acpi_handle handle, 587 const char *fmt, ...); 588 #else /* !CONFIG_ACPI */ 589 static inline __printf(3, 4) void 590 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {} 591 #endif /* !CONFIG_ACPI */ 592 593 /* 594 * acpi_handle_<level>: Print message with ACPI prefix and object path 595 * 596 * These interfaces acquire the global namespace mutex to obtain an object 597 * path. In interrupt context, it shows the object path as <n/a>. 598 */ 599 #define acpi_handle_emerg(handle, fmt, ...) \ 600 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__) 601 #define acpi_handle_alert(handle, fmt, ...) \ 602 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__) 603 #define acpi_handle_crit(handle, fmt, ...) \ 604 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__) 605 #define acpi_handle_err(handle, fmt, ...) \ 606 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__) 607 #define acpi_handle_warn(handle, fmt, ...) \ 608 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__) 609 #define acpi_handle_notice(handle, fmt, ...) \ 610 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__) 611 #define acpi_handle_info(handle, fmt, ...) \ 612 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__) 613 614 /* REVISIT: Support CONFIG_DYNAMIC_DEBUG when necessary */ 615 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) 616 #define acpi_handle_debug(handle, fmt, ...) \ 617 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__) 618 #else 619 #define acpi_handle_debug(handle, fmt, ...) \ 620 ({ \ 621 if (0) \ 622 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \ 623 0; \ 624 }) 625 #endif 626 627 #endif /*_LINUX_ACPI_H*/ 628