include/linux/acpi.h

   1 /*
   2  * acpi.h - ACPI Interface
   3  *
   4  * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
   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 <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)             ((dev)->acpi_node.companion)
  53 #define ACPI_COMPANION_SET(dev, adev)   ACPI_COMPANION(dev) = (adev)
  54 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
  55
  56 static inline const char *acpi_dev_name(struct acpi_device *adev)
  57 {
  58         return dev_name(&adev->dev);
  59 }
  60
  61 enum acpi_irq_model_id {
  62         ACPI_IRQ_MODEL_PIC = 0,
  63         ACPI_IRQ_MODEL_IOAPIC,
  64         ACPI_IRQ_MODEL_IOSAPIC,
  65         ACPI_IRQ_MODEL_PLATFORM,
  66         ACPI_IRQ_MODEL_COUNT
  67 };
  68
  69 extern enum acpi_irq_model_id   acpi_irq_model;
  70
  71 enum acpi_interrupt_id {
  72         ACPI_INTERRUPT_PMI      = 1,
  73         ACPI_INTERRUPT_INIT,
  74         ACPI_INTERRUPT_CPEI,
  75         ACPI_INTERRUPT_COUNT
  76 };
  77
  78 #define ACPI_SPACE_MEM          0
  79
  80 enum acpi_address_range_id {
  81         ACPI_ADDRESS_RANGE_MEMORY = 1,
  82         ACPI_ADDRESS_RANGE_RESERVED = 2,
  83         ACPI_ADDRESS_RANGE_ACPI = 3,
  84         ACPI_ADDRESS_RANGE_NVS  = 4,
  85         ACPI_ADDRESS_RANGE_COUNT
  86 };
  87
  88
  89 /* Table Handlers */
  90
  91 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
  92
  93 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
  94                                       const unsigned long end);
  95
  96 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
  97 void acpi_initrd_override(void *data, size_t size);
  98 #else
  99 static inline void acpi_initrd_override(void *data, size_t size)
 100 {
 101 }
 102 #endif
 103
 104 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 105 void __acpi_unmap_table(char *map, unsigned long size);
 106 int early_acpi_boot_init(void);
 107 int acpi_boot_init (void);
 108 void acpi_boot_table_init (void);
 109 int acpi_mps_check (void);
 110 int acpi_numa_init (void);
 111
 112 int acpi_table_init (void);
 113 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 114 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 115                                     int entry_id,
 116                                     acpi_tbl_entry_handler handler,
 117                                     unsigned int max_entries);
 118 int acpi_table_parse_madt(enum acpi_madt_type id,
 119                           acpi_tbl_entry_handler handler,
 120                           unsigned int max_entries);
 121 int acpi_parse_mcfg (struct acpi_table_header *header);
 122 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 123
 124 /* the following four functions are architecture-dependent */
 125 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 126 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 127 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 128 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 129 void acpi_numa_arch_fixup(void);
 130
 131 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 132 /* Arch dependent functions for cpu hotplug support */
 133 int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
 134 int acpi_unmap_lsapic(int cpu);
 135 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 136
 137 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 138 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 139 void acpi_irq_stats_init(void);
 140 extern u32 acpi_irq_handled;
 141 extern u32 acpi_irq_not_handled;
 142
 143 extern int sbf_port;
 144 extern unsigned long acpi_realmode_flags;
 145
 146 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 147 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 148 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 149
 150 #ifdef CONFIG_X86_IO_APIC
 151 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 152 #else
 153 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 154 #endif
 155 /*
 156  * This function undoes the effect of one call to acpi_register_gsi().
 157  * If this matches the last registration, any IRQ resources for gsi
 158  * are freed.
 159  */
 160 void acpi_unregister_gsi (u32 gsi);
 161
 162 struct pci_dev;
 163
 164 int acpi_pci_irq_enable (struct pci_dev *dev);
 165 void acpi_penalize_isa_irq(int irq, int active);
 166
 167 void acpi_pci_irq_disable (struct pci_dev *dev);
 168
 169 extern int ec_read(u8 addr, u8 *val);
 170 extern int ec_write(u8 addr, u8 val);
 171 extern int ec_transaction(u8 command,
 172                           const u8 *wdata, unsigned wdata_len,
 173                           u8 *rdata, unsigned rdata_len);
 174 extern acpi_handle ec_get_handle(void);
 175
 176 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 177
 178 typedef void (*wmi_notify_handler) (u32 value, void *context);
 179
 180 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 181                                         u32 method_id,
 182                                         const struct acpi_buffer *in,
 183                                         struct acpi_buffer *out);
 184 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 185                                         struct acpi_buffer *out);
 186 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 187                                         const struct acpi_buffer *in);
 188 extern acpi_status wmi_install_notify_handler(const char *guid,
 189                                         wmi_notify_handler handler, void *data);
 190 extern acpi_status wmi_remove_notify_handler(const char *guid);
 191 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 192 extern bool wmi_has_guid(const char *guid);
 193
 194 #endif  /* CONFIG_ACPI_WMI */
 195
 196 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 197 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 198 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 199 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 200 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 201 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 202 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 203 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 204 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 205 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 206 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 207 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 208
 209 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 210
 211 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 212 extern long acpi_is_video_device(acpi_handle handle);
 213 extern void acpi_video_dmi_promote_vendor(void);
 214 extern void acpi_video_dmi_demote_vendor(void);
 215 extern int acpi_video_backlight_support(void);
 216 extern int acpi_video_display_switch_support(void);
 217
 218 #else
 219
 220 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 221 {
 222         return 0;
 223 }
 224
 225 static inline long acpi_is_video_device(acpi_handle handle)
 226 {
 227         return 0;
 228 }
 229
 230 static inline void acpi_video_dmi_promote_vendor(void)
 231 {
 232 }
 233
 234 static inline void acpi_video_dmi_demote_vendor(void)
 235 {
 236 }
 237
 238 static inline int acpi_video_backlight_support(void)
 239 {
 240         return 0;
 241 }
 242
 243 static inline int acpi_video_display_switch_support(void)
 244 {
 245         return 0;
 246 }
 247
 248 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 249
 250 extern int acpi_blacklisted(void);
 251 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 252 extern void acpi_osi_setup(char *str);
 253
 254 #ifdef CONFIG_ACPI_NUMA
 255 int acpi_get_pxm(acpi_handle handle);
 256 int acpi_get_node(acpi_handle *handle);
 257 #else
 258 static inline int acpi_get_pxm(acpi_handle handle)
 259 {
 260         return 0;
 261 }
 262 static inline int acpi_get_node(acpi_handle *handle)
 263 {
 264         return 0;
 265 }
 266 #endif
 267 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 268
 269 extern int pnpacpi_disabled;
 270
 271 #define PXM_INVAL       (-1)
 272
 273 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 274 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 275 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 276                                      struct resource *res);
 277 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 278                                          struct resource *res);
 279 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 280 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 281                                  struct resource *res);
 282
 283 struct resource_list_entry {
 284         struct list_head node;
 285         struct resource res;
 286 };
 287
 288 void acpi_dev_free_resource_list(struct list_head *list);
 289 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 290                            int (*preproc)(struct acpi_resource *, void *),
 291                            void *preproc_data);
 292
 293 int acpi_check_resource_conflict(const struct resource *res);
 294
 295 int acpi_check_region(resource_size_t start, resource_size_t n,
 296                       const char *name);
 297
 298 int acpi_resources_are_enforced(void);
 299
 300 #ifdef CONFIG_HIBERNATION
 301 void __init acpi_no_s4_hw_signature(void);
 302 #endif
 303
 304 #ifdef CONFIG_PM_SLEEP
 305 void __init acpi_old_suspend_ordering(void);
 306 void __init acpi_nvs_nosave(void);
 307 void __init acpi_nvs_nosave_s3(void);
 308 #endif /* CONFIG_PM_SLEEP */
 309
 310 struct acpi_osc_context {
 311         char *uuid_str;                 /* UUID string */
 312         int rev;
 313         struct acpi_buffer cap;         /* list of DWORD capabilities */
 314         struct acpi_buffer ret;         /* free by caller if success */
 315 };
 316
 317 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 318 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 319
 320 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 321 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 322 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 323 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 324
 325 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 326 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
 327 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
 328 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 329 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 330 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 331
 332 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 333 #define OSC_SB_PAD_SUPPORT                      0x00000001
 334 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 335 #define OSC_SB_PR3_SUPPORT                      0x00000004
 336 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 337 #define OSC_SB_APEI_SUPPORT                     0x00000010
 338 #define OSC_SB_CPC_SUPPORT                      0x00000020
 339
 340 extern bool osc_sb_apei_support_acked;
 341
 342 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 343 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 344 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
 345 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 346 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 347 #define OSC_PCI_MSI_SUPPORT                     0x00000010
 348 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 349
 350 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 351 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 352 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 353 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 354 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 355 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 356 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
 357
 358 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 359                                              u32 *mask, u32 req);
 360
 361 /* Enable _OST when all relevant hotplug operations are enabled */
 362 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 363         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 364         defined(CONFIG_ACPI_CONTAINER)
 365 #define ACPI_HOTPLUG_OST
 366 #endif
 367
 368 /* _OST Source Event Code (OSPM Action) */
 369 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 370 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 371 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 372
 373 /* _OST General Processing Status Code */
 374 #define ACPI_OST_SC_SUCCESS                     0x0
 375 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 376 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 377
 378 /* _OST OS Shutdown Processing (0x100) Status Code */
 379 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 380 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 381 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 382 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 383
 384 /* _OST Ejection Request (0x3, 0x103) Status Code */
 385 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 386 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 387 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 388 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 389 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 390
 391 /* _OST Insertion Request (0x200) Status Code */
 392 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 393 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 394 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 395
 396 extern void acpi_early_init(void);
 397
 398 extern int acpi_nvs_register(__u64 start, __u64 size);
 399
 400 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 401                                     void *data);
 402
 403 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 404                                                const struct device *dev);
 405
 406 static inline bool acpi_driver_match_device(struct device *dev,
 407                                             const struct device_driver *drv)
 408 {
 409         return !!acpi_match_device(drv->acpi_match_table, dev);
 410 }
 411
 412 #define ACPI_PTR(_ptr)  (_ptr)
 413
 414 #else   /* !CONFIG_ACPI */
 415
 416 #define acpi_disabled 1
 417
 418 #define ACPI_COMPANION(dev)             (NULL)
 419 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 420 #define ACPI_HANDLE(dev)                (NULL)
 421
 422 static inline const char *acpi_dev_name(struct acpi_device *adev)
 423 {
 424         return NULL;
 425 }
 426
 427 static inline void acpi_early_init(void) { }
 428
 429 static inline int early_acpi_boot_init(void)
 430 {
 431         return 0;
 432 }
 433 static inline int acpi_boot_init(void)
 434 {
 435         return 0;
 436 }
 437
 438 static inline void acpi_boot_table_init(void)
 439 {
 440         return;
 441 }
 442
 443 static inline int acpi_mps_check(void)
 444 {
 445         return 0;
 446 }
 447
 448 static inline int acpi_check_resource_conflict(struct resource *res)
 449 {
 450         return 0;
 451 }
 452
 453 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 454                                     const char *name)
 455 {
 456         return 0;
 457 }
 458
 459 struct acpi_table_header;
 460 static inline int acpi_table_parse(char *id,
 461                                 int (*handler)(struct acpi_table_header *))
 462 {
 463         return -1;
 464 }
 465
 466 static inline int acpi_nvs_register(__u64 start, __u64 size)
 467 {
 468         return 0;
 469 }
 470
 471 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 472                                            void *data)
 473 {
 474         return 0;
 475 }
 476
 477 struct acpi_device_id;
 478
 479 static inline const struct acpi_device_id *acpi_match_device(
 480         const struct acpi_device_id *ids, const struct device *dev)
 481 {
 482         return NULL;
 483 }
 484
 485 static inline bool acpi_driver_match_device(struct device *dev,
 486                                             const struct device_driver *drv)
 487 {
 488         return false;
 489 }
 490
 491 #define ACPI_PTR(_ptr)  (NULL)
 492
 493 #endif  /* !CONFIG_ACPI */
 494
 495 #ifdef CONFIG_ACPI
 496 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 497                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 498
 499 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 500                                   u32 pm1a_control, u32 pm1b_control);
 501
 502 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 503                                         u32 val_a,  u32 val_b));
 504
 505 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 506                                            u32 val_a, u32 val_b);
 507
 508 #ifdef CONFIG_X86
 509 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 510 #else
 511 static inline void arch_reserve_mem_area(acpi_physical_address addr,
 512                                           size_t size)
 513 {
 514 }
 515 #endif /* CONFIG_X86 */
 516 #else
 517 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 518 #endif
 519
 520 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
 521 int acpi_dev_runtime_suspend(struct device *dev);
 522 int acpi_dev_runtime_resume(struct device *dev);
 523 int acpi_subsys_runtime_suspend(struct device *dev);
 524 int acpi_subsys_runtime_resume(struct device *dev);
 525 #else
 526 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 527 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 528 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 529 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 530 #endif
 531
 532 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 533 int acpi_dev_suspend_late(struct device *dev);
 534 int acpi_dev_resume_early(struct device *dev);
 535 int acpi_subsys_prepare(struct device *dev);
 536 int acpi_subsys_suspend_late(struct device *dev);
 537 int acpi_subsys_resume_early(struct device *dev);
 538 #else
 539 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 540 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 541 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 542 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 543 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 544 #endif
 545
 546 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 547 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 548 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 549 void acpi_dev_pm_detach(struct device *dev, bool power_off);
 550 #else
 551 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 552 {
 553         return NULL;
 554 }
 555 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 556 {
 557         return -ENODEV;
 558 }
 559 static inline void acpi_dev_pm_detach(struct device *dev, bool power_off) {}
 560 #endif
 561
 562 #ifdef CONFIG_ACPI
 563 __printf(3, 4)
 564 void acpi_handle_printk(const char *level, acpi_handle handle,
 565                         const char *fmt, ...);
 566 #else   /* !CONFIG_ACPI */
 567 static inline __printf(3, 4) void
 568 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 569 #endif  /* !CONFIG_ACPI */
 570
 571 /*
 572  * acpi_handle_<level>: Print message with ACPI prefix and object path
 573  *
 574  * These interfaces acquire the global namespace mutex to obtain an object
 575  * path.  In interrupt context, it shows the object path as <n/a>.
 576  */
 577 #define acpi_handle_emerg(handle, fmt, ...)                             \
 578         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 579 #define acpi_handle_alert(handle, fmt, ...)                             \
 580         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 581 #define acpi_handle_crit(handle, fmt, ...)                              \
 582         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 583 #define acpi_handle_err(handle, fmt, ...)                               \
 584         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 585 #define acpi_handle_warn(handle, fmt, ...)                              \
 586         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 587 #define acpi_handle_notice(handle, fmt, ...)                            \
 588         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 589 #define acpi_handle_info(handle, fmt, ...)                              \
 590         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 591
 592 /* REVISIT: Support CONFIG_DYNAMIC_DEBUG when necessary */
 593 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
 594 #define acpi_handle_debug(handle, fmt, ...)                             \
 595         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 596 #else
 597 #define acpi_handle_debug(handle, fmt, ...)                             \
 598 ({                                                                      \
 599         if (0)                                                          \
 600                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 601         0;                                                              \
 602 })
 603 #endif
 604
 605 #endif  /*_LINUX_ACPI_H*/