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