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  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  19  */
  20
  21 #ifndef _LINUX_ACPI_H
  22 #define _LINUX_ACPI_H
  23
  24 #include <linux/errno.h>
  25 #include <linux/ioport.h>       /* for struct resource */
  26 #include <linux/resource_ext.h>
  27 #include <linux/device.h>
  28 #include <linux/property.h>
  29
  30 #ifndef _LINUX
  31 #define _LINUX
  32 #endif
  33 #include <acpi/acpi.h>
  34
  35 #ifdef  CONFIG_ACPI
  36
  37 #include <linux/list.h>
  38 #include <linux/mod_devicetable.h>
  39 #include <linux/dynamic_debug.h>
  40
  41 #include <acpi/acpi_bus.h>
  42 #include <acpi/acpi_drivers.h>
  43 #include <acpi/acpi_numa.h>
  44 #include <acpi/acpi_io.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)             to_acpi_device_node((dev)->fwnode)
  53 #define ACPI_COMPANION_SET(dev, adev)   set_primary_fwnode(dev, (adev) ? \
  54         acpi_fwnode_handle(adev) : NULL)
  55 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
  56
  57 /**
  58  * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
  59  * the PCI-defined class-code information
  60  *
  61  * @_cls : the class, subclass, prog-if triple for this device
  62  * @_msk : the class mask for this device
  63  *
  64  * This macro is used to create a struct acpi_device_id that matches a
  65  * specific PCI class. The .id and .driver_data fields will be left
  66  * initialized with the default value.
  67  */
  68 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (_cls), .cls_msk = (_msk),
  69
  70 static inline bool has_acpi_companion(struct device *dev)
  71 {
  72         return is_acpi_device_node(dev->fwnode);
  73 }
  74
  75 static inline void acpi_preset_companion(struct device *dev,
  76                                          struct acpi_device *parent, u64 addr)
  77 {
  78         ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
  79 }
  80
  81 static inline const char *acpi_dev_name(struct acpi_device *adev)
  82 {
  83         return dev_name(&adev->dev);
  84 }
  85
  86 enum acpi_irq_model_id {
  87         ACPI_IRQ_MODEL_PIC = 0,
  88         ACPI_IRQ_MODEL_IOAPIC,
  89         ACPI_IRQ_MODEL_IOSAPIC,
  90         ACPI_IRQ_MODEL_PLATFORM,
  91         ACPI_IRQ_MODEL_GIC,
  92         ACPI_IRQ_MODEL_COUNT
  93 };
  94
  95 extern enum acpi_irq_model_id   acpi_irq_model;
  96
  97 enum acpi_interrupt_id {
  98         ACPI_INTERRUPT_PMI      = 1,
  99         ACPI_INTERRUPT_INIT,
 100         ACPI_INTERRUPT_CPEI,
 101         ACPI_INTERRUPT_COUNT
 102 };
 103
 104 #define ACPI_SPACE_MEM          0
 105
 106 enum acpi_address_range_id {
 107         ACPI_ADDRESS_RANGE_MEMORY = 1,
 108         ACPI_ADDRESS_RANGE_RESERVED = 2,
 109         ACPI_ADDRESS_RANGE_ACPI = 3,
 110         ACPI_ADDRESS_RANGE_NVS  = 4,
 111         ACPI_ADDRESS_RANGE_COUNT
 112 };
 113
 114
 115 /* Table Handlers */
 116
 117 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 118
 119 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
 120                                       const unsigned long end);
 121
 122 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
 123 void acpi_initrd_override(void *data, size_t size);
 124 #else
 125 static inline void acpi_initrd_override(void *data, size_t size)
 126 {
 127 }
 128 #endif
 129
 130 #define BAD_MADT_ENTRY(entry, end) (                                        \
 131                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 132                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 133
 134 struct acpi_subtable_proc {
 135         int id;
 136         acpi_tbl_entry_handler handler;
 137         int count;
 138 };
 139
 140 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 141 void __acpi_unmap_table(char *map, unsigned long size);
 142 int early_acpi_boot_init(void);
 143 int acpi_boot_init (void);
 144 void acpi_boot_table_init (void);
 145 int acpi_mps_check (void);
 146 int acpi_numa_init (void);
 147
 148 int acpi_table_init (void);
 149 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 150 int __init acpi_parse_entries(char *id, unsigned long table_size,
 151                               acpi_tbl_entry_handler handler,
 152                               struct acpi_table_header *table_header,
 153                               int entry_id, unsigned int max_entries);
 154 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 155                               int entry_id,
 156                               acpi_tbl_entry_handler handler,
 157                               unsigned int max_entries);
 158 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 159                               int entry_id,
 160                               acpi_tbl_entry_handler handler,
 161                               unsigned int max_entries);
 162 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
 163                               struct acpi_subtable_proc *proc, int proc_num,
 164                               unsigned int max_entries);
 165 int acpi_table_parse_madt(enum acpi_madt_type id,
 166                           acpi_tbl_entry_handler handler,
 167                           unsigned int max_entries);
 168 int acpi_parse_mcfg (struct acpi_table_header *header);
 169 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 170
 171 /* the following four functions are architecture-dependent */
 172 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 173 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 174 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 175 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 176 void acpi_numa_arch_fixup(void);
 177
 178 #ifndef PHYS_CPUID_INVALID
 179 typedef u32 phys_cpuid_t;
 180 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 181 #endif
 182
 183 static inline bool invalid_logical_cpuid(u32 cpuid)
 184 {
 185         return (int)cpuid < 0;
 186 }
 187
 188 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 189 {
 190         return phys_id == PHYS_CPUID_INVALID;
 191 }
 192
 193 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 194 /* Arch dependent functions for cpu hotplug support */
 195 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
 196 int acpi_unmap_cpu(int cpu);
 197 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 198
 199 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 200 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 201 #endif
 202
 203 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 204 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 205 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 206 void acpi_irq_stats_init(void);
 207 extern u32 acpi_irq_handled;
 208 extern u32 acpi_irq_not_handled;
 209 extern unsigned int acpi_sci_irq;
 210 #define INVALID_ACPI_IRQ        ((unsigned)-1)
 211 static inline bool acpi_sci_irq_valid(void)
 212 {
 213         return acpi_sci_irq != INVALID_ACPI_IRQ;
 214 }
 215
 216 extern int sbf_port;
 217 extern unsigned long acpi_realmode_flags;
 218
 219 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 220 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 221 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 222
 223 void acpi_set_irq_model(enum acpi_irq_model_id model,
 224                         struct fwnode_handle *fwnode);
 225
 226 #ifdef CONFIG_X86_IO_APIC
 227 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 228 #else
 229 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 230 #endif
 231 /*
 232  * This function undoes the effect of one call to acpi_register_gsi().
 233  * If this matches the last registration, any IRQ resources for gsi
 234  * are freed.
 235  */
 236 void acpi_unregister_gsi (u32 gsi);
 237
 238 struct pci_dev;
 239
 240 int acpi_pci_irq_enable (struct pci_dev *dev);
 241 void acpi_penalize_isa_irq(int irq, int active);
 242 bool acpi_isa_irq_available(int irq);
 243 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 244 void acpi_pci_irq_disable (struct pci_dev *dev);
 245
 246 extern int ec_read(u8 addr, u8 *val);
 247 extern int ec_write(u8 addr, u8 val);
 248 extern int ec_transaction(u8 command,
 249                           const u8 *wdata, unsigned wdata_len,
 250                           u8 *rdata, unsigned rdata_len);
 251 extern acpi_handle ec_get_handle(void);
 252
 253 extern bool acpi_is_pnp_device(struct acpi_device *);
 254
 255 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 256
 257 typedef void (*wmi_notify_handler) (u32 value, void *context);
 258
 259 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 260                                         u32 method_id,
 261                                         const struct acpi_buffer *in,
 262                                         struct acpi_buffer *out);
 263 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 264                                         struct acpi_buffer *out);
 265 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 266                                         const struct acpi_buffer *in);
 267 extern acpi_status wmi_install_notify_handler(const char *guid,
 268                                         wmi_notify_handler handler, void *data);
 269 extern acpi_status wmi_remove_notify_handler(const char *guid);
 270 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 271 extern bool wmi_has_guid(const char *guid);
 272
 273 #endif  /* CONFIG_ACPI_WMI */
 274
 275 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 276 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 277 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 278 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 279 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 280 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 281 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 282 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 283 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 284 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 285 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 286 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 287
 288 extern char acpi_video_backlight_string[];
 289 extern long acpi_is_video_device(acpi_handle handle);
 290 extern int acpi_blacklisted(void);
 291 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 292 extern void acpi_osi_setup(char *str);
 293 extern bool acpi_osi_is_win8(void);
 294
 295 #ifdef CONFIG_ACPI_NUMA
 296 int acpi_map_pxm_to_online_node(int pxm);
 297 int acpi_get_node(acpi_handle handle);
 298 #else
 299 static inline int acpi_map_pxm_to_online_node(int pxm)
 300 {
 301         return 0;
 302 }
 303 static inline int acpi_get_node(acpi_handle handle)
 304 {
 305         return 0;
 306 }
 307 #endif
 308 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 309
 310 extern int pnpacpi_disabled;
 311
 312 #define PXM_INVAL       (-1)
 313
 314 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 315 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 316 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 317                                      struct resource_win *win);
 318 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 319                                          struct resource_win *win);
 320 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 321 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 322                                  struct resource *res);
 323
 324 void acpi_dev_free_resource_list(struct list_head *list);
 325 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 326                            int (*preproc)(struct acpi_resource *, void *),
 327                            void *preproc_data);
 328 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 329                                   unsigned long types);
 330
 331 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 332                                                    void *arg)
 333 {
 334         return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 335 }
 336
 337 int acpi_check_resource_conflict(const struct resource *res);
 338
 339 int acpi_check_region(resource_size_t start, resource_size_t n,
 340                       const char *name);
 341
 342 int acpi_resources_are_enforced(void);
 343
 344 #ifdef CONFIG_HIBERNATION
 345 void __init acpi_no_s4_hw_signature(void);
 346 #endif
 347
 348 #ifdef CONFIG_PM_SLEEP
 349 void __init acpi_old_suspend_ordering(void);
 350 void __init acpi_nvs_nosave(void);
 351 void __init acpi_nvs_nosave_s3(void);
 352 #endif /* CONFIG_PM_SLEEP */
 353
 354 struct acpi_osc_context {
 355         char *uuid_str;                 /* UUID string */
 356         int rev;
 357         struct acpi_buffer cap;         /* list of DWORD capabilities */
 358         struct acpi_buffer ret;         /* free by caller if success */
 359 };
 360
 361 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 362 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 363
 364 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 365 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 366 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 367 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 368
 369 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 370 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
 371 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
 372 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 373 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 374 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 375
 376 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 377 #define OSC_SB_PAD_SUPPORT                      0x00000001
 378 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 379 #define OSC_SB_PR3_SUPPORT                      0x00000004
 380 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 381 #define OSC_SB_APEI_SUPPORT                     0x00000010
 382 #define OSC_SB_CPC_SUPPORT                      0x00000020
 383
 384 extern bool osc_sb_apei_support_acked;
 385
 386 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 387 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 388 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
 389 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 390 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 391 #define OSC_PCI_MSI_SUPPORT                     0x00000010
 392 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 393
 394 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 395 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 396 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 397 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 398 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 399 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 400 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
 401
 402 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 403 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 404 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 405 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 406 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 407 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 408 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 409 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 410 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 411 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 412
 413 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 414                                              u32 *mask, u32 req);
 415
 416 /* Enable _OST when all relevant hotplug operations are enabled */
 417 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 418         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 419         defined(CONFIG_ACPI_CONTAINER)
 420 #define ACPI_HOTPLUG_OST
 421 #endif
 422
 423 /* _OST Source Event Code (OSPM Action) */
 424 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 425 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 426 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 427
 428 /* _OST General Processing Status Code */
 429 #define ACPI_OST_SC_SUCCESS                     0x0
 430 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 431 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 432
 433 /* _OST OS Shutdown Processing (0x100) Status Code */
 434 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 435 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 436 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 437 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 438
 439 /* _OST Ejection Request (0x3, 0x103) Status Code */
 440 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 441 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 442 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 443 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 444 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 445
 446 /* _OST Insertion Request (0x200) Status Code */
 447 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 448 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 449 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 450
 451 extern void acpi_early_init(void);
 452 extern void acpi_subsystem_init(void);
 453
 454 extern int acpi_nvs_register(__u64 start, __u64 size);
 455
 456 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 457                                     void *data);
 458
 459 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 460                                                const struct device *dev);
 461
 462 extern bool acpi_driver_match_device(struct device *dev,
 463                                      const struct device_driver *drv);
 464 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 465 int acpi_device_modalias(struct device *, char *, int);
 466 void acpi_walk_dep_device_list(acpi_handle handle);
 467
 468 struct platform_device *acpi_create_platform_device(struct acpi_device *);
 469 #define ACPI_PTR(_ptr)  (_ptr)
 470
 471 #else   /* !CONFIG_ACPI */
 472
 473 #define acpi_disabled 1
 474
 475 #define ACPI_COMPANION(dev)             (NULL)
 476 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 477 #define ACPI_HANDLE(dev)                (NULL)
 478 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
 479
 480 struct fwnode_handle;
 481
 482 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 483 {
 484         return false;
 485 }
 486
 487 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
 488 {
 489         return false;
 490 }
 491
 492 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
 493 {
 494         return NULL;
 495 }
 496
 497 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
 498 {
 499         return false;
 500 }
 501
 502 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
 503 {
 504         return NULL;
 505 }
 506
 507 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 508 {
 509         return NULL;
 510 }
 511
 512 static inline bool has_acpi_companion(struct device *dev)
 513 {
 514         return false;
 515 }
 516
 517 static inline void acpi_preset_companion(struct device *dev,
 518                                          struct acpi_device *parent, u64 addr)
 519 {
 520 }
 521
 522 static inline const char *acpi_dev_name(struct acpi_device *adev)
 523 {
 524         return NULL;
 525 }
 526
 527 static inline void acpi_early_init(void) { }
 528 static inline void acpi_subsystem_init(void) { }
 529
 530 static inline int early_acpi_boot_init(void)
 531 {
 532         return 0;
 533 }
 534 static inline int acpi_boot_init(void)
 535 {
 536         return 0;
 537 }
 538
 539 static inline void acpi_boot_table_init(void)
 540 {
 541         return;
 542 }
 543
 544 static inline int acpi_mps_check(void)
 545 {
 546         return 0;
 547 }
 548
 549 static inline int acpi_check_resource_conflict(struct resource *res)
 550 {
 551         return 0;
 552 }
 553
 554 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 555                                     const char *name)
 556 {
 557         return 0;
 558 }
 559
 560 struct acpi_table_header;
 561 static inline int acpi_table_parse(char *id,
 562                                 int (*handler)(struct acpi_table_header *))
 563 {
 564         return -ENODEV;
 565 }
 566
 567 static inline int acpi_nvs_register(__u64 start, __u64 size)
 568 {
 569         return 0;
 570 }
 571
 572 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 573                                            void *data)
 574 {
 575         return 0;
 576 }
 577
 578 struct acpi_device_id;
 579
 580 static inline const struct acpi_device_id *acpi_match_device(
 581         const struct acpi_device_id *ids, const struct device *dev)
 582 {
 583         return NULL;
 584 }
 585
 586 static inline bool acpi_driver_match_device(struct device *dev,
 587                                             const struct device_driver *drv)
 588 {
 589         return false;
 590 }
 591
 592 static inline int acpi_device_uevent_modalias(struct device *dev,
 593                                 struct kobj_uevent_env *env)
 594 {
 595         return -ENODEV;
 596 }
 597
 598 static inline int acpi_device_modalias(struct device *dev,
 599                                 char *buf, int size)
 600 {
 601         return -ENODEV;
 602 }
 603
 604 static inline bool acpi_dma_supported(struct acpi_device *adev)
 605 {
 606         return false;
 607 }
 608
 609 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
 610 {
 611         return DEV_DMA_NOT_SUPPORTED;
 612 }
 613
 614 #define ACPI_PTR(_ptr)  (NULL)
 615
 616 #endif  /* !CONFIG_ACPI */
 617
 618 #ifdef CONFIG_ACPI
 619 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 620                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 621
 622 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 623                                   u32 pm1a_control, u32 pm1b_control);
 624
 625 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 626                                         u32 val_a,  u32 val_b));
 627
 628 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 629                                            u32 val_a, u32 val_b);
 630
 631 #ifdef CONFIG_X86
 632 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 633 #else
 634 static inline void arch_reserve_mem_area(acpi_physical_address addr,
 635                                           size_t size)
 636 {
 637 }
 638 #endif /* CONFIG_X86 */
 639 #else
 640 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 641 #endif
 642
 643 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 644 int acpi_dev_runtime_suspend(struct device *dev);
 645 int acpi_dev_runtime_resume(struct device *dev);
 646 int acpi_subsys_runtime_suspend(struct device *dev);
 647 int acpi_subsys_runtime_resume(struct device *dev);
 648 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 649 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 650 #else
 651 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 652 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 653 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 654 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 655 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 656 {
 657         return NULL;
 658 }
 659 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 660 {
 661         return -ENODEV;
 662 }
 663 #endif
 664
 665 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 666 int acpi_dev_suspend_late(struct device *dev);
 667 int acpi_dev_resume_early(struct device *dev);
 668 int acpi_subsys_prepare(struct device *dev);
 669 void acpi_subsys_complete(struct device *dev);
 670 int acpi_subsys_suspend_late(struct device *dev);
 671 int acpi_subsys_resume_early(struct device *dev);
 672 int acpi_subsys_suspend(struct device *dev);
 673 int acpi_subsys_freeze(struct device *dev);
 674 #else
 675 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 676 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 677 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 678 static inline void acpi_subsys_complete(struct device *dev) {}
 679 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 680 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 681 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 682 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
 683 #endif
 684
 685 #ifdef CONFIG_ACPI
 686 __printf(3, 4)
 687 void acpi_handle_printk(const char *level, acpi_handle handle,
 688                         const char *fmt, ...);
 689 #else   /* !CONFIG_ACPI */
 690 static inline __printf(3, 4) void
 691 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 692 #endif  /* !CONFIG_ACPI */
 693
 694 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
 695 __printf(3, 4)
 696 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
 697 #else
 698 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
 699         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
 700 #endif
 701
 702 /*
 703  * acpi_handle_<level>: Print message with ACPI prefix and object path
 704  *
 705  * These interfaces acquire the global namespace mutex to obtain an object
 706  * path.  In interrupt context, it shows the object path as <n/a>.
 707  */
 708 #define acpi_handle_emerg(handle, fmt, ...)                             \
 709         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 710 #define acpi_handle_alert(handle, fmt, ...)                             \
 711         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 712 #define acpi_handle_crit(handle, fmt, ...)                              \
 713         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 714 #define acpi_handle_err(handle, fmt, ...)                               \
 715         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 716 #define acpi_handle_warn(handle, fmt, ...)                              \
 717         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 718 #define acpi_handle_notice(handle, fmt, ...)                            \
 719         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 720 #define acpi_handle_info(handle, fmt, ...)                              \
 721         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 722
 723 #if defined(DEBUG)
 724 #define acpi_handle_debug(handle, fmt, ...)                             \
 725         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 726 #else
 727 #if defined(CONFIG_DYNAMIC_DEBUG)
 728 #define acpi_handle_debug(handle, fmt, ...)                             \
 729 do {                                                                    \
 730         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
 731         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
 732                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
 733                                 ##__VA_ARGS__);                         \
 734 } while (0)
 735 #else
 736 #define acpi_handle_debug(handle, fmt, ...)                             \
 737 ({                                                                      \
 738         if (0)                                                          \
 739                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 740         0;                                                              \
 741 })
 742 #endif
 743 #endif
 744
 745 struct acpi_gpio_params {
 746         unsigned int crs_entry_index;
 747         unsigned int line_index;
 748         bool active_low;
 749 };
 750
 751 struct acpi_gpio_mapping {
 752         const char *name;
 753         const struct acpi_gpio_params *data;
 754         unsigned int size;
 755 };
 756
 757 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
 758 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 759                               const struct acpi_gpio_mapping *gpios);
 760
 761 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
 762 {
 763         if (adev)
 764                 adev->driver_gpios = NULL;
 765 }
 766
 767 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
 768 #else
 769 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 770                               const struct acpi_gpio_mapping *gpios)
 771 {
 772         return -ENXIO;
 773 }
 774 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
 775
 776 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 777 {
 778         return -ENXIO;
 779 }
 780 #endif
 781
 782 /* Device properties */
 783
 784 #define MAX_ACPI_REFERENCE_ARGS 8
 785 struct acpi_reference_args {
 786         struct acpi_device *adev;
 787         size_t nargs;
 788         u64 args[MAX_ACPI_REFERENCE_ARGS];
 789 };
 790
 791 #ifdef CONFIG_ACPI
 792 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 793                           acpi_object_type type, const union acpi_object **obj);
 794 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 795                                      const char *name, size_t index,
 796                                      struct acpi_reference_args *args);
 797
 798 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
 799                        void **valptr);
 800 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 801                               enum dev_prop_type proptype, void *val);
 802 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
 803                         enum dev_prop_type proptype, void *val, size_t nval);
 804 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 805                        enum dev_prop_type proptype, void *val, size_t nval);
 806
 807 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
 808                                             struct fwnode_handle *subnode);
 809
 810 struct acpi_probe_entry;
 811 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
 812                                                  struct acpi_probe_entry *);
 813
 814 #define ACPI_TABLE_ID_LEN       5
 815
 816 /**
 817  * struct acpi_probe_entry - boot-time probing entry
 818  * @id:                 ACPI table name
 819  * @type:               Optional subtable type to match
 820  *                      (if @id contains subtables)
 821  * @subtable_valid:     Optional callback to check the validity of
 822  *                      the subtable
 823  * @probe_table:        Callback to the driver being probed when table
 824  *                      match is successful
 825  * @probe_subtbl:       Callback to the driver being probed when table and
 826  *                      subtable match (and optional callback is successful)
 827  * @driver_data:        Sideband data provided back to the driver
 828  */
 829 struct acpi_probe_entry {
 830         __u8 id[ACPI_TABLE_ID_LEN];
 831         __u8 type;
 832         acpi_probe_entry_validate_subtbl subtable_valid;
 833         union {
 834                 acpi_tbl_table_handler probe_table;
 835                 acpi_tbl_entry_handler probe_subtbl;
 836         };
 837         kernel_ulong_t driver_data;
 838 };
 839
 840 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn)      \
 841         static const struct acpi_probe_entry __acpi_probe_##name        \
 842                 __used __section(__##table##_acpi_probe_table)          \
 843                  = {                                                    \
 844                         .id = table_id,                                 \
 845                         .type = subtable,                               \
 846                         .subtable_valid = valid,                        \
 847                         .probe_table = (acpi_tbl_table_handler)fn,      \
 848                         .driver_data = data,                            \
 849                    }
 850
 851 #define ACPI_PROBE_TABLE(name)          __##name##_acpi_probe_table
 852 #define ACPI_PROBE_TABLE_END(name)      __##name##_acpi_probe_table_end
 853
 854 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
 855
 856 #define acpi_probe_device_table(t)                                      \
 857         ({                                                              \
 858                 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),     \
 859                                                ACPI_PROBE_TABLE_END(t); \
 860                 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t),         \
 861                                           (&ACPI_PROBE_TABLE_END(t) -   \
 862                                            &ACPI_PROBE_TABLE(t)));      \
 863         })
 864 #else
 865 static inline int acpi_dev_get_property(struct acpi_device *adev,
 866                                         const char *name, acpi_object_type type,
 867                                         const union acpi_object **obj)
 868 {
 869         return -ENXIO;
 870 }
 871
 872 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 873                                 const char *name, size_t index,
 874                                 struct acpi_reference_args *args)
 875 {
 876         return -ENXIO;
 877 }
 878
 879 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
 880                                      const char *propname,
 881                                      void **valptr)
 882 {
 883         return -ENXIO;
 884 }
 885
 886 static inline int acpi_dev_prop_get(struct acpi_device *adev,
 887                                     const char *propname,
 888                                     void **valptr)
 889 {
 890         return -ENXIO;
 891 }
 892
 893 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
 894                                             const char *propname,
 895                                             enum dev_prop_type proptype,
 896                                             void *val)
 897 {
 898         return -ENXIO;
 899 }
 900
 901 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
 902                                       const char *propname,
 903                                       enum dev_prop_type proptype,
 904                                       void *val, size_t nval)
 905 {
 906         return -ENXIO;
 907 }
 908
 909 static inline int acpi_dev_prop_read(struct acpi_device *adev,
 910                                      const char *propname,
 911                                      enum dev_prop_type proptype,
 912                                      void *val, size_t nval)
 913 {
 914         return -ENXIO;
 915 }
 916
 917 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
 918                                                 struct fwnode_handle *subnode)
 919 {
 920         return NULL;
 921 }
 922
 923 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
 924         static const void * __acpi_table_##name[]                       \
 925                 __attribute__((unused))                                 \
 926                  = { (void *) table_id,                                 \
 927                      (void *) subtable,                                 \
 928                      (void *) valid,                                    \
 929                      (void *) fn,                                       \
 930                      (void *) data }
 931
 932 #define acpi_probe_device_table(t)      ({ int __r = 0; __r;})
 933 #endif
 934
 935 #endif  /*_LINUX_ACPI_H*/