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 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*/