linux/include/linux/acpi.h
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   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
  47static 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_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
  70static inline bool has_acpi_companion(struct device *dev)
  71{
  72        return is_acpi_node(dev->fwnode);
  73}
  74
  75static 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
  81static inline const char *acpi_dev_name(struct acpi_device *adev)
  82{
  83        return dev_name(&adev->dev);
  84}
  85
  86enum 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
  95extern enum acpi_irq_model_id   acpi_irq_model;
  96
  97enum 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
 106enum 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
 117typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 118
 119typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
 120                                      const unsigned long end);
 121
 122#ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
 123void acpi_initrd_override(void *data, size_t size);
 124#else
 125static 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
 134char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 135void __acpi_unmap_table(char *map, unsigned long size);
 136int early_acpi_boot_init(void);
 137int acpi_boot_init (void);
 138void acpi_boot_table_init (void);
 139int acpi_mps_check (void);
 140int acpi_numa_init (void);
 141
 142int acpi_table_init (void);
 143int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 144int __init acpi_parse_entries(char *id, unsigned long table_size,
 145                              acpi_tbl_entry_handler handler,
 146                              struct acpi_table_header *table_header,
 147                              int entry_id, unsigned int max_entries);
 148int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 149                                    int entry_id,
 150                                    acpi_tbl_entry_handler handler,
 151                                    unsigned int max_entries);
 152int acpi_table_parse_madt(enum acpi_madt_type id,
 153                          acpi_tbl_entry_handler handler,
 154                          unsigned int max_entries);
 155int acpi_parse_mcfg (struct acpi_table_header *header);
 156void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 157
 158/* the following four functions are architecture-dependent */
 159void acpi_numa_slit_init (struct acpi_table_slit *slit);
 160void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 161void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 162int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 163void acpi_numa_arch_fixup(void);
 164
 165#ifndef PHYS_CPUID_INVALID
 166typedef u32 phys_cpuid_t;
 167#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 168#endif
 169
 170static inline bool invalid_logical_cpuid(u32 cpuid)
 171{
 172        return (int)cpuid < 0;
 173}
 174
 175static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 176{
 177        return phys_id == PHYS_CPUID_INVALID;
 178}
 179
 180#ifdef CONFIG_ACPI_HOTPLUG_CPU
 181/* Arch dependent functions for cpu hotplug support */
 182int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
 183int acpi_unmap_cpu(int cpu);
 184#endif /* CONFIG_ACPI_HOTPLUG_CPU */
 185
 186#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 187int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 188#endif
 189
 190int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 191int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 192int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 193void acpi_irq_stats_init(void);
 194extern u32 acpi_irq_handled;
 195extern u32 acpi_irq_not_handled;
 196
 197extern int sbf_port;
 198extern unsigned long acpi_realmode_flags;
 199
 200int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 201int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 202int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 203
 204#ifdef CONFIG_X86_IO_APIC
 205extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 206#else
 207#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 208#endif
 209/*
 210 * This function undoes the effect of one call to acpi_register_gsi().
 211 * If this matches the last registration, any IRQ resources for gsi
 212 * are freed.
 213 */
 214void acpi_unregister_gsi (u32 gsi);
 215
 216struct pci_dev;
 217
 218int acpi_pci_irq_enable (struct pci_dev *dev);
 219void acpi_penalize_isa_irq(int irq, int active);
 220bool acpi_isa_irq_available(int irq);
 221void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 222void acpi_pci_irq_disable (struct pci_dev *dev);
 223
 224extern int ec_read(u8 addr, u8 *val);
 225extern int ec_write(u8 addr, u8 val);
 226extern int ec_transaction(u8 command,
 227                          const u8 *wdata, unsigned wdata_len,
 228                          u8 *rdata, unsigned rdata_len);
 229extern acpi_handle ec_get_handle(void);
 230
 231extern bool acpi_is_pnp_device(struct acpi_device *);
 232
 233#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 234
 235typedef void (*wmi_notify_handler) (u32 value, void *context);
 236
 237extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 238                                        u32 method_id,
 239                                        const struct acpi_buffer *in,
 240                                        struct acpi_buffer *out);
 241extern acpi_status wmi_query_block(const char *guid, u8 instance,
 242                                        struct acpi_buffer *out);
 243extern acpi_status wmi_set_block(const char *guid, u8 instance,
 244                                        const struct acpi_buffer *in);
 245extern acpi_status wmi_install_notify_handler(const char *guid,
 246                                        wmi_notify_handler handler, void *data);
 247extern acpi_status wmi_remove_notify_handler(const char *guid);
 248extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 249extern bool wmi_has_guid(const char *guid);
 250
 251#endif  /* CONFIG_ACPI_WMI */
 252
 253#define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 254#define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 255#define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 256#define ACPI_VIDEO_BACKLIGHT                            0x0008
 257#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 258#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 259#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 260#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 261#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 262#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 263#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 264#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 265
 266extern char acpi_video_backlight_string[];
 267extern long acpi_is_video_device(acpi_handle handle);
 268extern int acpi_blacklisted(void);
 269extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 270extern void acpi_osi_setup(char *str);
 271extern bool acpi_osi_is_win8(void);
 272
 273#ifdef CONFIG_ACPI_NUMA
 274int acpi_map_pxm_to_online_node(int pxm);
 275int acpi_get_node(acpi_handle handle);
 276#else
 277static inline int acpi_map_pxm_to_online_node(int pxm)
 278{
 279        return 0;
 280}
 281static inline int acpi_get_node(acpi_handle handle)
 282{
 283        return 0;
 284}
 285#endif
 286extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 287
 288extern int pnpacpi_disabled;
 289
 290#define PXM_INVAL       (-1)
 291
 292bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 293bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 294bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 295                                     struct resource_win *win);
 296bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 297                                         struct resource_win *win);
 298unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 299bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 300                                 struct resource *res);
 301
 302void acpi_dev_free_resource_list(struct list_head *list);
 303int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 304                           int (*preproc)(struct acpi_resource *, void *),
 305                           void *preproc_data);
 306int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 307                                  unsigned long types);
 308
 309static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 310                                                   void *arg)
 311{
 312        return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 313}
 314
 315int acpi_check_resource_conflict(const struct resource *res);
 316
 317int acpi_check_region(resource_size_t start, resource_size_t n,
 318                      const char *name);
 319
 320int acpi_resources_are_enforced(void);
 321
 322#ifdef CONFIG_HIBERNATION
 323void __init acpi_no_s4_hw_signature(void);
 324#endif
 325
 326#ifdef CONFIG_PM_SLEEP
 327void __init acpi_old_suspend_ordering(void);
 328void __init acpi_nvs_nosave(void);
 329void __init acpi_nvs_nosave_s3(void);
 330#endif /* CONFIG_PM_SLEEP */
 331
 332struct acpi_osc_context {
 333        char *uuid_str;                 /* UUID string */
 334        int rev;
 335        struct acpi_buffer cap;         /* list of DWORD capabilities */
 336        struct acpi_buffer ret;         /* free by caller if success */
 337};
 338
 339acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 340acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 341
 342/* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 343#define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 344#define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 345#define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 346
 347/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 348#define OSC_QUERY_ENABLE                        0x00000001  /* input */
 349#define OSC_REQUEST_ERROR                       0x00000002  /* return */
 350#define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 351#define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 352#define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 353
 354/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 355#define OSC_SB_PAD_SUPPORT                      0x00000001
 356#define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 357#define OSC_SB_PR3_SUPPORT                      0x00000004
 358#define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 359#define OSC_SB_APEI_SUPPORT                     0x00000010
 360#define OSC_SB_CPC_SUPPORT                      0x00000020
 361
 362extern bool osc_sb_apei_support_acked;
 363
 364/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 365#define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 366#define OSC_PCI_ASPM_SUPPORT                    0x00000002
 367#define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 368#define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 369#define OSC_PCI_MSI_SUPPORT                     0x00000010
 370#define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 371
 372/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 373#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 374#define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 375#define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 376#define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 377#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 378#define OSC_PCI_CONTROL_MASKS                   0x0000001f
 379
 380#define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 381#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 382#define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 383#define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 384#define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 385#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 386#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 387#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 388#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 389#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 390
 391extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 392                                             u32 *mask, u32 req);
 393
 394/* Enable _OST when all relevant hotplug operations are enabled */
 395#if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 396        defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 397        defined(CONFIG_ACPI_CONTAINER)
 398#define ACPI_HOTPLUG_OST
 399#endif
 400
 401/* _OST Source Event Code (OSPM Action) */
 402#define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 403#define ACPI_OST_EC_OSPM_EJECT                  0x103
 404#define ACPI_OST_EC_OSPM_INSERTION              0x200
 405
 406/* _OST General Processing Status Code */
 407#define ACPI_OST_SC_SUCCESS                     0x0
 408#define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 409#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 410
 411/* _OST OS Shutdown Processing (0x100) Status Code */
 412#define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 413#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 414#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 415#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 416
 417/* _OST Ejection Request (0x3, 0x103) Status Code */
 418#define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 419#define ACPI_OST_SC_DEVICE_IN_USE               0x81
 420#define ACPI_OST_SC_DEVICE_BUSY                 0x82
 421#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 422#define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 423
 424/* _OST Insertion Request (0x200) Status Code */
 425#define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 426#define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 427#define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 428
 429extern void acpi_early_init(void);
 430extern void acpi_subsystem_init(void);
 431
 432extern int acpi_nvs_register(__u64 start, __u64 size);
 433
 434extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 435                                    void *data);
 436
 437const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 438                                               const struct device *dev);
 439
 440extern bool acpi_driver_match_device(struct device *dev,
 441                                     const struct device_driver *drv);
 442int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 443int acpi_device_modalias(struct device *, char *, int);
 444void acpi_walk_dep_device_list(acpi_handle handle);
 445
 446struct platform_device *acpi_create_platform_device(struct acpi_device *);
 447#define ACPI_PTR(_ptr)  (_ptr)
 448
 449#else   /* !CONFIG_ACPI */
 450
 451#define acpi_disabled 1
 452
 453#define ACPI_COMPANION(dev)             (NULL)
 454#define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 455#define ACPI_HANDLE(dev)                (NULL)
 456#define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
 457
 458struct fwnode_handle;
 459
 460static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 461{
 462        return false;
 463}
 464
 465static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
 466{
 467        return NULL;
 468}
 469
 470static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 471{
 472        return NULL;
 473}
 474
 475static inline bool has_acpi_companion(struct device *dev)
 476{
 477        return false;
 478}
 479
 480static inline const char *acpi_dev_name(struct acpi_device *adev)
 481{
 482        return NULL;
 483}
 484
 485static inline void acpi_early_init(void) { }
 486static inline void acpi_subsystem_init(void) { }
 487
 488static inline int early_acpi_boot_init(void)
 489{
 490        return 0;
 491}
 492static inline int acpi_boot_init(void)
 493{
 494        return 0;
 495}
 496
 497static inline void acpi_boot_table_init(void)
 498{
 499        return;
 500}
 501
 502static inline int acpi_mps_check(void)
 503{
 504        return 0;
 505}
 506
 507static inline int acpi_check_resource_conflict(struct resource *res)
 508{
 509        return 0;
 510}
 511
 512static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 513                                    const char *name)
 514{
 515        return 0;
 516}
 517
 518struct acpi_table_header;
 519static inline int acpi_table_parse(char *id,
 520                                int (*handler)(struct acpi_table_header *))
 521{
 522        return -ENODEV;
 523}
 524
 525static inline int acpi_nvs_register(__u64 start, __u64 size)
 526{
 527        return 0;
 528}
 529
 530static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 531                                           void *data)
 532{
 533        return 0;
 534}
 535
 536struct acpi_device_id;
 537
 538static inline const struct acpi_device_id *acpi_match_device(
 539        const struct acpi_device_id *ids, const struct device *dev)
 540{
 541        return NULL;
 542}
 543
 544static inline bool acpi_driver_match_device(struct device *dev,
 545                                            const struct device_driver *drv)
 546{
 547        return false;
 548}
 549
 550static inline int acpi_device_uevent_modalias(struct device *dev,
 551                                struct kobj_uevent_env *env)
 552{
 553        return -ENODEV;
 554}
 555
 556static inline int acpi_device_modalias(struct device *dev,
 557                                char *buf, int size)
 558{
 559        return -ENODEV;
 560}
 561
 562static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent)
 563{
 564        return false;
 565}
 566
 567#define ACPI_PTR(_ptr)  (NULL)
 568
 569#endif  /* !CONFIG_ACPI */
 570
 571#ifdef CONFIG_ACPI
 572void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 573                               u32 pm1a_ctrl,  u32 pm1b_ctrl));
 574
 575acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 576                                  u32 pm1a_control, u32 pm1b_control);
 577
 578void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 579                                        u32 val_a,  u32 val_b));
 580
 581acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 582                                           u32 val_a, u32 val_b);
 583
 584#ifdef CONFIG_X86
 585void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 586#else
 587static inline void arch_reserve_mem_area(acpi_physical_address addr,
 588                                          size_t size)
 589{
 590}
 591#endif /* CONFIG_X86 */
 592#else
 593#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 594#endif
 595
 596#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 597int acpi_dev_runtime_suspend(struct device *dev);
 598int acpi_dev_runtime_resume(struct device *dev);
 599int acpi_subsys_runtime_suspend(struct device *dev);
 600int acpi_subsys_runtime_resume(struct device *dev);
 601struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 602int acpi_dev_pm_attach(struct device *dev, bool power_on);
 603#else
 604static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 605static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 606static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 607static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 608static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 609{
 610        return NULL;
 611}
 612static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 613{
 614        return -ENODEV;
 615}
 616#endif
 617
 618#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 619int acpi_dev_suspend_late(struct device *dev);
 620int acpi_dev_resume_early(struct device *dev);
 621int acpi_subsys_prepare(struct device *dev);
 622void acpi_subsys_complete(struct device *dev);
 623int acpi_subsys_suspend_late(struct device *dev);
 624int acpi_subsys_resume_early(struct device *dev);
 625int acpi_subsys_suspend(struct device *dev);
 626int acpi_subsys_freeze(struct device *dev);
 627#else
 628static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 629static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 630static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 631static inline void acpi_subsys_complete(struct device *dev) {}
 632static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 633static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 634static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 635static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
 636#endif
 637
 638#ifdef CONFIG_ACPI
 639__printf(3, 4)
 640void acpi_handle_printk(const char *level, acpi_handle handle,
 641                        const char *fmt, ...);
 642#else   /* !CONFIG_ACPI */
 643static inline __printf(3, 4) void
 644acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 645#endif  /* !CONFIG_ACPI */
 646
 647#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
 648__printf(3, 4)
 649void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
 650#else
 651#define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
 652        acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
 653#endif
 654
 655/*
 656 * acpi_handle_<level>: Print message with ACPI prefix and object path
 657 *
 658 * These interfaces acquire the global namespace mutex to obtain an object
 659 * path.  In interrupt context, it shows the object path as <n/a>.
 660 */
 661#define acpi_handle_emerg(handle, fmt, ...)                             \
 662        acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 663#define acpi_handle_alert(handle, fmt, ...)                             \
 664        acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 665#define acpi_handle_crit(handle, fmt, ...)                              \
 666        acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 667#define acpi_handle_err(handle, fmt, ...)                               \
 668        acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 669#define acpi_handle_warn(handle, fmt, ...)                              \
 670        acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 671#define acpi_handle_notice(handle, fmt, ...)                            \
 672        acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 673#define acpi_handle_info(handle, fmt, ...)                              \
 674        acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 675
 676#if defined(DEBUG)
 677#define acpi_handle_debug(handle, fmt, ...)                             \
 678        acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 679#else
 680#if defined(CONFIG_DYNAMIC_DEBUG)
 681#define acpi_handle_debug(handle, fmt, ...)                             \
 682do {                                                                    \
 683        DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
 684        if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
 685                __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
 686                                ##__VA_ARGS__);                         \
 687} while (0)
 688#else
 689#define acpi_handle_debug(handle, fmt, ...)                             \
 690({                                                                      \
 691        if (0)                                                          \
 692                acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 693        0;                                                              \
 694})
 695#endif
 696#endif
 697
 698struct acpi_gpio_params {
 699        unsigned int crs_entry_index;
 700        unsigned int line_index;
 701        bool active_low;
 702};
 703
 704struct acpi_gpio_mapping {
 705        const char *name;
 706        const struct acpi_gpio_params *data;
 707        unsigned int size;
 708};
 709
 710#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
 711int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 712                              const struct acpi_gpio_mapping *gpios);
 713
 714static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
 715{
 716        if (adev)
 717                adev->driver_gpios = NULL;
 718}
 719
 720int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
 721#else
 722static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 723                              const struct acpi_gpio_mapping *gpios)
 724{
 725        return -ENXIO;
 726}
 727static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
 728
 729static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 730{
 731        return -ENXIO;
 732}
 733#endif
 734
 735/* Device properties */
 736
 737#define MAX_ACPI_REFERENCE_ARGS 8
 738struct acpi_reference_args {
 739        struct acpi_device *adev;
 740        size_t nargs;
 741        u64 args[MAX_ACPI_REFERENCE_ARGS];
 742};
 743
 744#ifdef CONFIG_ACPI
 745int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 746                          acpi_object_type type, const union acpi_object **obj);
 747int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
 748                                acpi_object_type type,
 749                                const union acpi_object **obj);
 750int acpi_dev_get_property_reference(struct acpi_device *adev,
 751                                    const char *name, size_t index,
 752                                    struct acpi_reference_args *args);
 753
 754int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
 755                      void **valptr);
 756int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 757                              enum dev_prop_type proptype, void *val);
 758int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 759                       enum dev_prop_type proptype, void *val, size_t nval);
 760
 761struct acpi_device *acpi_get_next_child(struct device *dev,
 762                                        struct acpi_device *child);
 763#else
 764static inline int acpi_dev_get_property(struct acpi_device *adev,
 765                                        const char *name, acpi_object_type type,
 766                                        const union acpi_object **obj)
 767{
 768        return -ENXIO;
 769}
 770static inline int acpi_dev_get_property_array(struct acpi_device *adev,
 771                                              const char *name,
 772                                              acpi_object_type type,
 773                                              const union acpi_object **obj)
 774{
 775        return -ENXIO;
 776}
 777static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
 778                                const char *name, const char *cells_name,
 779                                size_t index, struct acpi_reference_args *args)
 780{
 781        return -ENXIO;
 782}
 783
 784static inline int acpi_dev_prop_get(struct acpi_device *adev,
 785                                    const char *propname,
 786                                    void **valptr)
 787{
 788        return -ENXIO;
 789}
 790
 791static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
 792                                            const char *propname,
 793                                            enum dev_prop_type proptype,
 794                                            void *val)
 795{
 796        return -ENXIO;
 797}
 798
 799static inline int acpi_dev_prop_read(struct acpi_device *adev,
 800                                     const char *propname,
 801                                     enum dev_prop_type proptype,
 802                                     void *val, size_t nval)
 803{
 804        return -ENXIO;
 805}
 806
 807static inline struct acpi_device *acpi_get_next_child(struct device *dev,
 808                                                      struct acpi_device *child)
 809{
 810        return NULL;
 811}
 812
 813#endif
 814
 815#endif  /*_LINUX_ACPI_H*/
 816