1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 5 * 6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 23 */ 24 25 #ifndef _LINUX_ACPI_H 26 #define _LINUX_ACPI_H 27 28 #include <linux/errno.h> 29 #include <linux/ioport.h> /* for struct resource */ 30 #include <linux/device.h> 31 32 #ifdef CONFIG_ACPI 33 34 #ifndef _LINUX 35 #define _LINUX 36 #endif 37 38 #include <linux/list.h> 39 #include <linux/mod_devicetable.h> 40 41 #include <acpi/acpi.h> 42 #include <acpi/acpi_bus.h> 43 #include <acpi/acpi_drivers.h> 44 #include <acpi/acpi_numa.h> 45 #include <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*/ 606