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 #include <linux/property.h>
  32
  33 #ifndef _LINUX
  34 #define _LINUX
  35 #endif
  36 #include <acpi/acpi.h>
  37
  38 #ifdef  CONFIG_ACPI
  39
  40 #include <linux/list.h>
  41 #include <linux/mod_devicetable.h>
  42 #include <linux/dynamic_debug.h>
  43
  44 #include <acpi/acpi_bus.h>
  45 #include <acpi/acpi_drivers.h>
  46 #include <acpi/acpi_numa.h>
  47 #include <acpi/acpi_io.h>
  48 #include <asm/acpi.h>
  49
  50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
  51 {
  52         return adev ? adev->handle : NULL;
  53 }
  54
  55 #define ACPI_COMPANION(dev)             ((dev)->acpi_node.companion)
  56 #define ACPI_COMPANION_SET(dev, adev)   ACPI_COMPANION(dev) = (adev)
  57 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
  58
  59 static inline void acpi_preset_companion(struct device *dev,
  60                                          struct acpi_device *parent, u64 addr)
  61 {
  62         ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
  63 }
  64
  65 static inline const char *acpi_dev_name(struct acpi_device *adev)
  66 {
  67         return dev_name(&adev->dev);
  68 }
  69
  70 enum acpi_irq_model_id {
  71         ACPI_IRQ_MODEL_PIC = 0,
  72         ACPI_IRQ_MODEL_IOAPIC,
  73         ACPI_IRQ_MODEL_IOSAPIC,
  74         ACPI_IRQ_MODEL_PLATFORM,
  75         ACPI_IRQ_MODEL_COUNT
  76 };
  77
  78 extern enum acpi_irq_model_id   acpi_irq_model;
  79
  80 enum acpi_interrupt_id {
  81         ACPI_INTERRUPT_PMI      = 1,
  82         ACPI_INTERRUPT_INIT,
  83         ACPI_INTERRUPT_CPEI,
  84         ACPI_INTERRUPT_COUNT
  85 };
  86
  87 #define ACPI_SPACE_MEM          0
  88
  89 enum acpi_address_range_id {
  90         ACPI_ADDRESS_RANGE_MEMORY = 1,
  91         ACPI_ADDRESS_RANGE_RESERVED = 2,
  92         ACPI_ADDRESS_RANGE_ACPI = 3,
  93         ACPI_ADDRESS_RANGE_NVS  = 4,
  94         ACPI_ADDRESS_RANGE_COUNT
  95 };
  96
  97
  98 /* Table Handlers */
  99
 100 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 101
 102 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
 103                                       const unsigned long end);
 104
 105 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
 106 void acpi_initrd_override(void *data, size_t size);
 107 #else
 108 static inline void acpi_initrd_override(void *data, size_t size)
 109 {
 110 }
 111 #endif
 112
 113 #define BAD_MADT_ENTRY(entry, end) (                                        \
 114                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 115                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 116
 117 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 118 void __acpi_unmap_table(char *map, unsigned long size);
 119 int early_acpi_boot_init(void);
 120 int acpi_boot_init (void);
 121 void acpi_boot_table_init (void);
 122 int acpi_mps_check (void);
 123 int acpi_numa_init (void);
 124
 125 int acpi_table_init (void);
 126 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 127 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 128                                     int entry_id,
 129                                     acpi_tbl_entry_handler handler,
 130                                     unsigned int max_entries);
 131 int acpi_table_parse_madt(enum acpi_madt_type id,
 132                           acpi_tbl_entry_handler handler,
 133                           unsigned int max_entries);
 134 int acpi_parse_mcfg (struct acpi_table_header *header);
 135 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 136
 137 /* the following four functions are architecture-dependent */
 138 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 139 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 140 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 141 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 142 void acpi_numa_arch_fixup(void);
 143
 144 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 145 /* Arch dependent functions for cpu hotplug support */
 146 int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
 147 int acpi_unmap_lsapic(int cpu);
 148 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 149
 150 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 151 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 152 void acpi_irq_stats_init(void);
 153 extern u32 acpi_irq_handled;
 154 extern u32 acpi_irq_not_handled;
 155
 156 extern int sbf_port;
 157 extern unsigned long acpi_realmode_flags;
 158
 159 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 160 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 161 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 162
 163 #ifdef CONFIG_X86_IO_APIC
 164 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 165 #else
 166 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 167 #endif
 168 /*
 169  * This function undoes the effect of one call to acpi_register_gsi().
 170  * If this matches the last registration, any IRQ resources for gsi
 171  * are freed.
 172  */
 173 void acpi_unregister_gsi (u32 gsi);
 174
 175 struct pci_dev;
 176
 177 int acpi_pci_irq_enable (struct pci_dev *dev);
 178 void acpi_penalize_isa_irq(int irq, int active);
 179
 180 void acpi_pci_irq_disable (struct pci_dev *dev);
 181
 182 extern int ec_read(u8 addr, u8 *val);
 183 extern int ec_write(u8 addr, u8 val);
 184 extern int ec_transaction(u8 command,
 185                           const u8 *wdata, unsigned wdata_len,
 186                           u8 *rdata, unsigned rdata_len);
 187 extern acpi_handle ec_get_handle(void);
 188
 189 extern bool acpi_is_pnp_device(struct acpi_device *);
 190
 191 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 192
 193 typedef void (*wmi_notify_handler) (u32 value, void *context);
 194
 195 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 196                                         u32 method_id,
 197                                         const struct acpi_buffer *in,
 198                                         struct acpi_buffer *out);
 199 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 200                                         struct acpi_buffer *out);
 201 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 202                                         const struct acpi_buffer *in);
 203 extern acpi_status wmi_install_notify_handler(const char *guid,
 204                                         wmi_notify_handler handler, void *data);
 205 extern acpi_status wmi_remove_notify_handler(const char *guid);
 206 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 207 extern bool wmi_has_guid(const char *guid);
 208
 209 #endif  /* CONFIG_ACPI_WMI */
 210
 211 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 212 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 213 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 214 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 215 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 216 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 217 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 218 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 219 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 220 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 221 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 222 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 223
 224 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
 225
 226 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
 227 extern long acpi_is_video_device(acpi_handle handle);
 228 extern void acpi_video_dmi_promote_vendor(void);
 229 extern void acpi_video_dmi_demote_vendor(void);
 230 extern int acpi_video_backlight_support(void);
 231 extern int acpi_video_display_switch_support(void);
 232
 233 #else
 234
 235 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
 236 {
 237         return 0;
 238 }
 239
 240 static inline long acpi_is_video_device(acpi_handle handle)
 241 {
 242         return 0;
 243 }
 244
 245 static inline void acpi_video_dmi_promote_vendor(void)
 246 {
 247 }
 248
 249 static inline void acpi_video_dmi_demote_vendor(void)
 250 {
 251 }
 252
 253 static inline int acpi_video_backlight_support(void)
 254 {
 255         return 0;
 256 }
 257
 258 static inline int acpi_video_display_switch_support(void)
 259 {
 260         return 0;
 261 }
 262
 263 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 264
 265 extern int acpi_blacklisted(void);
 266 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 267 extern void acpi_osi_setup(char *str);
 268
 269 #ifdef CONFIG_ACPI_NUMA
 270 int acpi_get_node(acpi_handle handle);
 271 #else
 272 static inline int acpi_get_node(acpi_handle handle)
 273 {
 274         return 0;
 275 }
 276 #endif
 277 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 278
 279 extern int pnpacpi_disabled;
 280
 281 #define PXM_INVAL       (-1)
 282
 283 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 284 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 285 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 286                                      struct resource *res);
 287 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 288                                          struct resource *res);
 289 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 290 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 291                                  struct resource *res);
 292
 293 struct resource_list_entry {
 294         struct list_head node;
 295         struct resource res;
 296 };
 297
 298 void acpi_dev_free_resource_list(struct list_head *list);
 299 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 300                            int (*preproc)(struct acpi_resource *, void *),
 301                            void *preproc_data);
 302
 303 int acpi_check_resource_conflict(const struct resource *res);
 304
 305 int acpi_check_region(resource_size_t start, resource_size_t n,
 306                       const char *name);
 307
 308 int acpi_resources_are_enforced(void);
 309
 310 #ifdef CONFIG_HIBERNATION
 311 void __init acpi_no_s4_hw_signature(void);
 312 #endif
 313
 314 #ifdef CONFIG_PM_SLEEP
 315 void __init acpi_old_suspend_ordering(void);
 316 void __init acpi_nvs_nosave(void);
 317 void __init acpi_nvs_nosave_s3(void);
 318 #endif /* CONFIG_PM_SLEEP */
 319
 320 struct acpi_osc_context {
 321         char *uuid_str;                 /* UUID string */
 322         int rev;
 323         struct acpi_buffer cap;         /* list of DWORD capabilities */
 324         struct acpi_buffer ret;         /* free by caller if success */
 325 };
 326
 327 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 328 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 329
 330 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 331 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 332 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 333 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 334
 335 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 336 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
 337 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
 338 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 339 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 340 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 341
 342 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 343 #define OSC_SB_PAD_SUPPORT                      0x00000001
 344 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 345 #define OSC_SB_PR3_SUPPORT                      0x00000004
 346 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 347 #define OSC_SB_APEI_SUPPORT                     0x00000010
 348 #define OSC_SB_CPC_SUPPORT                      0x00000020
 349
 350 extern bool osc_sb_apei_support_acked;
 351
 352 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 353 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 354 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
 355 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 356 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 357 #define OSC_PCI_MSI_SUPPORT                     0x00000010
 358 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 359
 360 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 361 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 362 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 363 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 364 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 365 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 366 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
 367
 368 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 369 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 370 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 371 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 372 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 373 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 374 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 375 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 376 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 377 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 378
 379 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 380                                              u32 *mask, u32 req);
 381
 382 /* Enable _OST when all relevant hotplug operations are enabled */
 383 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 384         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 385         defined(CONFIG_ACPI_CONTAINER)
 386 #define ACPI_HOTPLUG_OST
 387 #endif
 388
 389 /* _OST Source Event Code (OSPM Action) */
 390 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 391 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 392 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 393
 394 /* _OST General Processing Status Code */
 395 #define ACPI_OST_SC_SUCCESS                     0x0
 396 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 397 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 398
 399 /* _OST OS Shutdown Processing (0x100) Status Code */
 400 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 401 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 402 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 403 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 404
 405 /* _OST Ejection Request (0x3, 0x103) Status Code */
 406 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 407 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 408 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 409 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 410 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 411
 412 /* _OST Insertion Request (0x200) Status Code */
 413 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 414 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 415 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 416
 417 extern void acpi_early_init(void);
 418
 419 extern int acpi_nvs_register(__u64 start, __u64 size);
 420
 421 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 422                                     void *data);
 423
 424 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 425                                                const struct device *dev);
 426
 427 extern bool acpi_driver_match_device(struct device *dev,
 428                                      const struct device_driver *drv);
 429 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 430 int acpi_device_modalias(struct device *, char *, int);
 431
 432 struct platform_device *acpi_create_platform_device(struct acpi_device *);
 433 #define ACPI_PTR(_ptr)  (_ptr)
 434
 435 #else   /* !CONFIG_ACPI */
 436
 437 #define acpi_disabled 1
 438
 439 #define ACPI_COMPANION(dev)             (NULL)
 440 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 441 #define ACPI_HANDLE(dev)                (NULL)
 442
 443 struct fwnode_handle;
 444
 445 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 446 {
 447         return false;
 448 }
 449
 450 static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
 451 {
 452         return NULL;
 453 }
 454
 455 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 456 {
 457         return NULL;
 458 }
 459
 460 static inline const char *acpi_dev_name(struct acpi_device *adev)
 461 {
 462         return NULL;
 463 }
 464
 465 static inline void acpi_early_init(void) { }
 466
 467 static inline int early_acpi_boot_init(void)
 468 {
 469         return 0;
 470 }
 471 static inline int acpi_boot_init(void)
 472 {
 473         return 0;
 474 }
 475
 476 static inline void acpi_boot_table_init(void)
 477 {
 478         return;
 479 }
 480
 481 static inline int acpi_mps_check(void)
 482 {
 483         return 0;
 484 }
 485
 486 static inline int acpi_check_resource_conflict(struct resource *res)
 487 {
 488         return 0;
 489 }
 490
 491 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 492                                     const char *name)
 493 {
 494         return 0;
 495 }
 496
 497 struct acpi_table_header;
 498 static inline int acpi_table_parse(char *id,
 499                                 int (*handler)(struct acpi_table_header *))
 500 {
 501         return -ENODEV;
 502 }
 503
 504 static inline int acpi_nvs_register(__u64 start, __u64 size)
 505 {
 506         return 0;
 507 }
 508
 509 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 510                                            void *data)
 511 {
 512         return 0;
 513 }
 514
 515 struct acpi_device_id;
 516
 517 static inline const struct acpi_device_id *acpi_match_device(
 518         const struct acpi_device_id *ids, const struct device *dev)
 519 {
 520         return NULL;
 521 }
 522
 523 static inline bool acpi_driver_match_device(struct device *dev,
 524                                             const struct device_driver *drv)
 525 {
 526         return false;
 527 }
 528
 529 static inline int acpi_device_uevent_modalias(struct device *dev,
 530                                 struct kobj_uevent_env *env)
 531 {
 532         return -ENODEV;
 533 }
 534
 535 static inline int acpi_device_modalias(struct device *dev,
 536                                 char *buf, int size)
 537 {
 538         return -ENODEV;
 539 }
 540
 541 #define ACPI_PTR(_ptr)  (NULL)
 542
 543 #endif  /* !CONFIG_ACPI */
 544
 545 #ifdef CONFIG_ACPI
 546 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 547                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 548
 549 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 550                                   u32 pm1a_control, u32 pm1b_control);
 551
 552 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 553                                         u32 val_a,  u32 val_b));
 554
 555 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 556                                            u32 val_a, u32 val_b);
 557
 558 #ifdef CONFIG_X86
 559 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 560 #else
 561 static inline void arch_reserve_mem_area(acpi_physical_address addr,
 562                                           size_t size)
 563 {
 564 }
 565 #endif /* CONFIG_X86 */
 566 #else
 567 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 568 #endif
 569
 570 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
 571 int acpi_dev_runtime_suspend(struct device *dev);
 572 int acpi_dev_runtime_resume(struct device *dev);
 573 int acpi_subsys_runtime_suspend(struct device *dev);
 574 int acpi_subsys_runtime_resume(struct device *dev);
 575 #else
 576 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 577 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 578 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 579 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 580 #endif
 581
 582 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 583 int acpi_dev_suspend_late(struct device *dev);
 584 int acpi_dev_resume_early(struct device *dev);
 585 int acpi_subsys_prepare(struct device *dev);
 586 void acpi_subsys_complete(struct device *dev);
 587 int acpi_subsys_suspend_late(struct device *dev);
 588 int acpi_subsys_resume_early(struct device *dev);
 589 int acpi_subsys_suspend(struct device *dev);
 590 int acpi_subsys_freeze(struct device *dev);
 591 #else
 592 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 593 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 594 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 595 static inline void acpi_subsys_complete(struct device *dev) {}
 596 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 597 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 598 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 599 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
 600 #endif
 601
 602 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 603 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 604 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 605 #else
 606 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 607 {
 608         return NULL;
 609 }
 610 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 611 {
 612         return -ENODEV;
 613 }
 614 #endif
 615
 616 #ifdef CONFIG_ACPI
 617 __printf(3, 4)
 618 void acpi_handle_printk(const char *level, acpi_handle handle,
 619                         const char *fmt, ...);
 620 #else   /* !CONFIG_ACPI */
 621 static inline __printf(3, 4) void
 622 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 623 #endif  /* !CONFIG_ACPI */
 624
 625 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
 626 __printf(3, 4)
 627 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
 628 #else
 629 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
 630         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
 631 #endif
 632
 633 /*
 634  * acpi_handle_<level>: Print message with ACPI prefix and object path
 635  *
 636  * These interfaces acquire the global namespace mutex to obtain an object
 637  * path.  In interrupt context, it shows the object path as <n/a>.
 638  */
 639 #define acpi_handle_emerg(handle, fmt, ...)                             \
 640         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 641 #define acpi_handle_alert(handle, fmt, ...)                             \
 642         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 643 #define acpi_handle_crit(handle, fmt, ...)                              \
 644         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 645 #define acpi_handle_err(handle, fmt, ...)                               \
 646         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 647 #define acpi_handle_warn(handle, fmt, ...)                              \
 648         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 649 #define acpi_handle_notice(handle, fmt, ...)                            \
 650         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 651 #define acpi_handle_info(handle, fmt, ...)                              \
 652         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 653
 654 #if defined(DEBUG)
 655 #define acpi_handle_debug(handle, fmt, ...)                             \
 656         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 657 #else
 658 #if defined(CONFIG_DYNAMIC_DEBUG)
 659 #define acpi_handle_debug(handle, fmt, ...)                             \
 660 do {                                                                    \
 661         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
 662         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
 663                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
 664                                 ##__VA_ARGS__);                         \
 665 } while (0)
 666 #else
 667 #define acpi_handle_debug(handle, fmt, ...)                             \
 668 ({                                                                      \
 669         if (0)                                                          \
 670                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 671         0;                                                              \
 672 })
 673 #endif
 674 #endif
 675
 676 struct acpi_gpio_params {
 677         unsigned int crs_entry_index;
 678         unsigned int line_index;
 679         bool active_low;
 680 };
 681
 682 struct acpi_gpio_mapping {
 683         const char *name;
 684         const struct acpi_gpio_params *data;
 685         unsigned int size;
 686 };
 687
 688 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
 689 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 690                               const struct acpi_gpio_mapping *gpios);
 691
 692 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
 693 {
 694         if (adev)
 695                 adev->driver_gpios = NULL;
 696 }
 697 #else
 698 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 699                               const struct acpi_gpio_mapping *gpios)
 700 {
 701         return -ENXIO;
 702 }
 703 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
 704 #endif
 705
 706 /* Device properties */
 707
 708 #define MAX_ACPI_REFERENCE_ARGS 8
 709 struct acpi_reference_args {
 710         struct acpi_device *adev;
 711         size_t nargs;
 712         u64 args[MAX_ACPI_REFERENCE_ARGS];
 713 };
 714
 715 #ifdef CONFIG_ACPI
 716 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 717                           acpi_object_type type, const union acpi_object **obj);
 718 int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
 719                                 acpi_object_type type,
 720                                 const union acpi_object **obj);
 721 int acpi_dev_get_property_reference(struct acpi_device *adev,
 722                                     const char *name, size_t index,
 723                                     struct acpi_reference_args *args);
 724
 725 int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
 726                       void **valptr);
 727 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 728                               enum dev_prop_type proptype, void *val);
 729 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 730                        enum dev_prop_type proptype, void *val, size_t nval);
 731
 732 struct acpi_device *acpi_get_next_child(struct device *dev,
 733                                         struct acpi_device *child);
 734 #else
 735 static inline int acpi_dev_get_property(struct acpi_device *adev,
 736                                         const char *name, acpi_object_type type,
 737                                         const union acpi_object **obj)
 738 {
 739         return -ENXIO;
 740 }
 741 static inline int acpi_dev_get_property_array(struct acpi_device *adev,
 742                                               const char *name,
 743                                               acpi_object_type type,
 744                                               const union acpi_object **obj)
 745 {
 746         return -ENXIO;
 747 }
 748 static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
 749                                 const char *name, const char *cells_name,
 750                                 size_t index, struct acpi_reference_args *args)
 751 {
 752         return -ENXIO;
 753 }
 754
 755 static inline int acpi_dev_prop_get(struct acpi_device *adev,
 756                                     const char *propname,
 757                                     void **valptr)
 758 {
 759         return -ENXIO;
 760 }
 761
 762 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
 763                                             const char *propname,
 764                                             enum dev_prop_type proptype,
 765                                             void *val)
 766 {
 767         return -ENXIO;
 768 }
 769
 770 static inline int acpi_dev_prop_read(struct acpi_device *adev,
 771                                      const char *propname,
 772                                      enum dev_prop_type proptype,
 773                                      void *val, size_t nval)
 774 {
 775         return -ENXIO;
 776 }
 777
 778 static inline struct acpi_device *acpi_get_next_child(struct device *dev,
 779                                                       struct acpi_device *child)
 780 {
 781         return NULL;
 782 }
 783
 784 #endif
 785
 786 #endif  /*_LINUX_ACPI_H*/