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 enum acpi_irq_model_id {
  48         ACPI_IRQ_MODEL_PIC = 0,
  49         ACPI_IRQ_MODEL_IOAPIC,
  50         ACPI_IRQ_MODEL_IOSAPIC,
  51         ACPI_IRQ_MODEL_PLATFORM,
  52         ACPI_IRQ_MODEL_COUNT
  53 };
  54
  55 extern enum acpi_irq_model_id   acpi_irq_model;
  56
  57 enum acpi_interrupt_id {
  58         ACPI_INTERRUPT_PMI      = 1,
  59         ACPI_INTERRUPT_INIT,
  60         ACPI_INTERRUPT_CPEI,
  61         ACPI_INTERRUPT_COUNT
  62 };
  63
  64 #define ACPI_SPACE_MEM          0
  65
  66 enum acpi_address_range_id {
  67         ACPI_ADDRESS_RANGE_MEMORY = 1,
  68         ACPI_ADDRESS_RANGE_RESERVED = 2,
  69         ACPI_ADDRESS_RANGE_ACPI = 3,
  70         ACPI_ADDRESS_RANGE_NVS  = 4,
  71         ACPI_ADDRESS_RANGE_COUNT
  72 };
  73
  74
  75 /* Table Handlers */
  76
  77 typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  78
  79 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  80
  81 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  82 void __acpi_unmap_table(char *map, unsigned long size);
  83 int early_acpi_boot_init(void);
  84 int acpi_boot_init (void);
  85 void acpi_boot_table_init (void);
  86 int acpi_mps_check (void);
  87 int acpi_numa_init (void);
  88
  89 int acpi_table_init (void);
  90 int acpi_table_parse (char *id, acpi_table_handler handler);
  91 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  92         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  93 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  94 int acpi_parse_mcfg (struct acpi_table_header *header);
  95 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  96
  97 /* the following four functions are architecture-dependent */
  98 void acpi_numa_slit_init (struct acpi_table_slit *slit);
  99 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 100 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 101 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 102 void acpi_numa_arch_fixup(void);
 103
 104 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 105 /* Arch dependent functions for cpu hotplug support */
 106 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 107 int acpi_unmap_lsapic(int cpu);
 108 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 109
 110 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 111 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 112 void acpi_irq_stats_init(void);
 113 extern u32 acpi_irq_handled;
 114 extern u32 acpi_irq_not_handled;
 115
 116 extern int sbf_port;
 117 extern unsigned long acpi_realmode_flags;
 118
 119 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 120 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 121 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 122
 123 #ifdef CONFIG_X86_IO_APIC
 124 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 125 #else
 126 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 127 #endif
 128 /*
 129  * This function undoes the effect of one call to acpi_register_gsi().
 130  * If this matches the last registration, any IRQ resources for gsi
 131  * are freed.
 132  */
 133 void acpi_unregister_gsi (u32 gsi);
 134
 135 struct pci_dev;
 136
 137 int acpi_pci_irq_enable (struct pci_dev *dev);
 138 void acpi_penalize_isa_irq(int irq, int active);
 139
 140 void acpi_pci_irq_disable (struct pci_dev *dev);
 141
 142 struct acpi_pci_driver {
 143         struct list_head node;
 144         int (*add)(struct acpi_pci_root *root);
 145         void (*remove)(struct acpi_pci_root *root);
 146 };
 147
 148 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 149 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 150
 151 extern int ec_read(u8 addr, u8 *val);
 152 extern int ec_write(u8 addr, u8 val);
 153 extern int ec_transaction(u8 command,
 154                           const u8 *wdata, unsigned wdata_len,
 155                           u8 *rdata, unsigned rdata_len);
 156 extern acpi_handle ec_get_handle(void);
 157
 158 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 159
 160 typedef void (*wmi_notify_handler) (u32 value, void *context);
 161
 162 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 163                                         u32 method_id,
 164                                         const struct acpi_buffer *in,
 165                                         struct acpi_buffer *out);
 166 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 167                                         struct acpi_buffer *out);
 168 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 169                                         const struct acpi_buffer *in);
 170 extern acpi_status wmi_install_notify_handler(const char *guid,
 171                                         wmi_notify_handler handler, void *data);
 172 extern acpi_status wmi_remove_notify_handler(const char *guid);
 173 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 174 extern bool wmi_has_guid(const char *guid);
 175
 176 #endif  /* CONFIG_ACPI_WMI */
 177
 178 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 179 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 180 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 181 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 182 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 183 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 184 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 185 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 186 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 187 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 188 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 189 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 190
 191 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 192
 193 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 194 extern long acpi_is_video_device(struct acpi_device *device);
 195 extern void acpi_video_dmi_promote_vendor(void);
 196 extern void acpi_video_dmi_demote_vendor(void);
 197 extern int acpi_video_backlight_support(void);
 198 extern int acpi_video_display_switch_support(void);
 199
 200 #else
 201
 202 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 203 {
 204         return 0;
 205 }
 206
 207 static inline long acpi_is_video_device(struct acpi_device *device)
 208 {
 209         return 0;
 210 }
 211
 212 static inline void acpi_video_dmi_promote_vendor(void)
 213 {
 214 }
 215
 216 static inline void acpi_video_dmi_demote_vendor(void)
 217 {
 218 }
 219
 220 static inline int acpi_video_backlight_support(void)
 221 {
 222         return 0;
 223 }
 224
 225 static inline int acpi_video_display_switch_support(void)
 226 {
 227         return 0;
 228 }
 229
 230 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 231
 232 extern int acpi_blacklisted(void);
 233 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 234 extern void acpi_osi_setup(char *str);
 235
 236 #ifdef CONFIG_ACPI_NUMA
 237 int acpi_get_pxm(acpi_handle handle);
 238 int acpi_get_node(acpi_handle *handle);
 239 #else
 240 static inline int acpi_get_pxm(acpi_handle handle)
 241 {
 242         return 0;
 243 }
 244 static inline int acpi_get_node(acpi_handle *handle)
 245 {
 246         return 0;
 247 }
 248 #endif
 249 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 250
 251 extern int pnpacpi_disabled;
 252
 253 #define PXM_INVAL       (-1)
 254
 255 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 256 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 257 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 258                                      struct resource *res);
 259 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 260                                          struct resource *res);
 261 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 262 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 263                                  struct resource *res);
 264
 265 struct resource_list_entry {
 266         struct list_head node;
 267         struct resource res;
 268 };
 269
 270 void acpi_dev_free_resource_list(struct list_head *list);
 271 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 272                            int (*preproc)(struct acpi_resource *, void *),
 273                            void *preproc_data);
 274
 275 int acpi_check_resource_conflict(const struct resource *res);
 276
 277 int acpi_check_region(resource_size_t start, resource_size_t n,
 278                       const char *name);
 279
 280 int acpi_resources_are_enforced(void);
 281
 282 #ifdef CONFIG_HIBERNATION
 283 void __init acpi_no_s4_hw_signature(void);
 284 #endif
 285
 286 #ifdef CONFIG_PM_SLEEP
 287 void __init acpi_old_suspend_ordering(void);
 288 void __init acpi_nvs_nosave(void);
 289 void __init acpi_nvs_nosave_s3(void);
 290 #endif /* CONFIG_PM_SLEEP */
 291
 292 struct acpi_osc_context {
 293         char *uuid_str; /* uuid string */
 294         int rev;
 295         struct acpi_buffer cap; /* arg2/arg3 */
 296         struct acpi_buffer ret; /* free by caller if success */
 297 };
 298
 299 #define OSC_QUERY_TYPE                  0
 300 #define OSC_SUPPORT_TYPE                1
 301 #define OSC_CONTROL_TYPE                2
 302
 303 /* _OSC DW0 Definition */
 304 #define OSC_QUERY_ENABLE                1
 305 #define OSC_REQUEST_ERROR               2
 306 #define OSC_INVALID_UUID_ERROR          4
 307 #define OSC_INVALID_REVISION_ERROR      8
 308 #define OSC_CAPABILITIES_MASK_ERROR     16
 309
 310 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 311
 312 /* platform-wide _OSC bits */
 313 #define OSC_SB_PAD_SUPPORT              1
 314 #define OSC_SB_PPC_OST_SUPPORT          2
 315 #define OSC_SB_PR3_SUPPORT              4
 316 #define OSC_SB_HOTPLUG_OST_SUPPORT      8
 317 #define OSC_SB_APEI_SUPPORT             16
 318
 319 extern bool osc_sb_apei_support_acked;
 320
 321 /* PCI defined _OSC bits */
 322 /* _OSC DW1 Definition (OS Support Fields) */
 323 #define OSC_EXT_PCI_CONFIG_SUPPORT              1
 324 #define OSC_ACTIVE_STATE_PWR_SUPPORT            2
 325 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT        4
 326 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          8
 327 #define OSC_MSI_SUPPORT                         16
 328 #define OSC_PCI_SUPPORT_MASKS                   0x1f
 329
 330 /* _OSC DW1 Definition (OS Control Fields) */
 331 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       1
 332 #define OSC_SHPC_NATIVE_HP_CONTROL              2
 333 #define OSC_PCI_EXPRESS_PME_CONTROL             4
 334 #define OSC_PCI_EXPRESS_AER_CONTROL             8
 335 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL   16
 336
 337 #define OSC_PCI_CONTROL_MASKS   (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 338                                 OSC_SHPC_NATIVE_HP_CONTROL |            \
 339                                 OSC_PCI_EXPRESS_PME_CONTROL |           \
 340                                 OSC_PCI_EXPRESS_AER_CONTROL |           \
 341                                 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 342
 343 #define OSC_PCI_NATIVE_HOTPLUG  (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |    \
 344                                 OSC_SHPC_NATIVE_HP_CONTROL)
 345
 346 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 347                                              u32 *mask, u32 req);
 348
 349 /* Enable _OST when all relevant hotplug operations are enabled */
 350 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 351         (defined(CONFIG_ACPI_HOTPLUG_MEMORY) ||         \
 352          defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) && \
 353         (defined(CONFIG_ACPI_CONTAINER) ||              \
 354          defined(CONFIG_ACPI_CONTAINER_MODULE))
 355 #define ACPI_HOTPLUG_OST
 356 #endif
 357
 358 /* _OST Source Event Code (OSPM Action) */
 359 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 360 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 361 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 362
 363 /* _OST General Processing Status Code */
 364 #define ACPI_OST_SC_SUCCESS                     0x0
 365 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 366 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 367
 368 /* _OST OS Shutdown Processing (0x100) Status Code */
 369 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 370 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 371 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 372 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 373
 374 /* _OST Ejection Request (0x3, 0x103) Status Code */
 375 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 376 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 377 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 378 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 379 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 380
 381 /* _OST Insertion Request (0x200) Status Code */
 382 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 383 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 384 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 385
 386 extern void acpi_early_init(void);
 387
 388 extern int acpi_nvs_register(__u64 start, __u64 size);
 389
 390 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 391                                     void *data);
 392
 393 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 394                                                const struct device *dev);
 395
 396 static inline bool acpi_driver_match_device(struct device *dev,
 397                                             const struct device_driver *drv)
 398 {
 399         return !!acpi_match_device(drv->acpi_match_table, dev);
 400 }
 401
 402 #define ACPI_PTR(_ptr)  (_ptr)
 403
 404 #else   /* !CONFIG_ACPI */
 405
 406 #define acpi_disabled 1
 407
 408 static inline void acpi_early_init(void) { }
 409
 410 static inline int early_acpi_boot_init(void)
 411 {
 412         return 0;
 413 }
 414 static inline int acpi_boot_init(void)
 415 {
 416         return 0;
 417 }
 418
 419 static inline void acpi_boot_table_init(void)
 420 {
 421         return;
 422 }
 423
 424 static inline int acpi_mps_check(void)
 425 {
 426         return 0;
 427 }
 428
 429 static inline int acpi_check_resource_conflict(struct resource *res)
 430 {
 431         return 0;
 432 }
 433
 434 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 435                                     const char *name)
 436 {
 437         return 0;
 438 }
 439
 440 struct acpi_table_header;
 441 static inline int acpi_table_parse(char *id,
 442                                 int (*handler)(struct acpi_table_header *))
 443 {
 444         return -1;
 445 }
 446
 447 static inline int acpi_nvs_register(__u64 start, __u64 size)
 448 {
 449         return 0;
 450 }
 451
 452 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 453                                            void *data)
 454 {
 455         return 0;
 456 }
 457
 458 struct acpi_device_id;
 459
 460 static inline const struct acpi_device_id *acpi_match_device(
 461         const struct acpi_device_id *ids, const struct device *dev)
 462 {
 463         return NULL;
 464 }
 465
 466 static inline bool acpi_driver_match_device(struct device *dev,
 467                                             const struct device_driver *drv)
 468 {
 469         return false;
 470 }
 471
 472 #define ACPI_PTR(_ptr)  (NULL)
 473
 474 #endif  /* !CONFIG_ACPI */
 475
 476 #ifdef CONFIG_ACPI
 477 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 478                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 479
 480 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 481                                   u32 pm1a_control, u32 pm1b_control);
 482 #else
 483 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 484 #endif
 485
 486 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
 487 int acpi_dev_runtime_suspend(struct device *dev);
 488 int acpi_dev_runtime_resume(struct device *dev);
 489 int acpi_subsys_runtime_suspend(struct device *dev);
 490 int acpi_subsys_runtime_resume(struct device *dev);
 491 #else
 492 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 493 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 494 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 495 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 496 #endif
 497
 498 #ifdef CONFIG_ACPI_SLEEP
 499 int acpi_dev_suspend_late(struct device *dev);
 500 int acpi_dev_resume_early(struct device *dev);
 501 int acpi_subsys_prepare(struct device *dev);
 502 int acpi_subsys_suspend_late(struct device *dev);
 503 int acpi_subsys_resume_early(struct device *dev);
 504 #else
 505 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 506 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 507 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 508 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 509 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 510 #endif
 511
 512 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 513 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 514 void acpi_dev_pm_detach(struct device *dev, bool power_off);
 515 #else
 516 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 517 {
 518         return -ENODEV;
 519 }
 520 static inline void acpi_dev_pm_detach(struct device *dev, bool power_off) {}
 521 #endif
 522
 523 #ifdef CONFIG_ACPI
 524 __printf(3, 4)
 525 void acpi_handle_printk(const char *level, acpi_handle handle,
 526                         const char *fmt, ...);
 527 #else   /* !CONFIG_ACPI */
 528 static inline __printf(3, 4) void
 529 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 530 #endif  /* !CONFIG_ACPI */
 531
 532 /*
 533  * acpi_handle_<level>: Print message with ACPI prefix and object path
 534  *
 535  * These interfaces acquire the global namespace mutex to obtain an object
 536  * path.  In interrupt context, it shows the object path as <n/a>.
 537  */
 538 #define acpi_handle_emerg(handle, fmt, ...)                             \
 539         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 540 #define acpi_handle_alert(handle, fmt, ...)                             \
 541         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 542 #define acpi_handle_crit(handle, fmt, ...)                              \
 543         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 544 #define acpi_handle_err(handle, fmt, ...)                               \
 545         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 546 #define acpi_handle_warn(handle, fmt, ...)                              \
 547         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 548 #define acpi_handle_notice(handle, fmt, ...)                            \
 549         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 550 #define acpi_handle_info(handle, fmt, ...)                              \
 551         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 552
 553 /* REVISIT: Support CONFIG_DYNAMIC_DEBUG when necessary */
 554 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
 555 #define acpi_handle_debug(handle, fmt, ...)                             \
 556         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 557 #else
 558 #define acpi_handle_debug(handle, fmt, ...)                             \
 559 ({                                                                      \
 560         if (0)                                                          \
 561                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 562         0;                                                              \
 563 })
 564 #endif
 565
 566 #endif  /*_LINUX_ACPI_H*/