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 #include <linux/module.h>
  41 #include <linux/mutex.h>
  42
  43 #include <acpi/acpi_bus.h>
  44 #include <acpi/acpi_drivers.h>
  45 #include <acpi/acpi_numa.h>
  46 #include <acpi/acpi_io.h>
  47 #include <asm/acpi.h>
  48
  49 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
  50 {
  51         return adev ? adev->handle : NULL;
  52 }
  53
  54 #define ACPI_COMPANION(dev)             to_acpi_device_node((dev)->fwnode)
  55 #define ACPI_COMPANION_SET(dev, adev)   set_primary_fwnode(dev, (adev) ? \
  56         acpi_fwnode_handle(adev) : NULL)
  57 #define ACPI_HANDLE(dev)                acpi_device_handle(ACPI_COMPANION(dev))
  58
  59 /**
  60  * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
  61  * the PCI-defined class-code information
  62  *
  63  * @_cls : the class, subclass, prog-if triple for this device
  64  * @_msk : the class mask for this device
  65  *
  66  * This macro is used to create a struct acpi_device_id that matches a
  67  * specific PCI class. The .id and .driver_data fields will be left
  68  * initialized with the default value.
  69  */
  70 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (_cls), .cls_msk = (_msk),
  71
  72 static inline bool has_acpi_companion(struct device *dev)
  73 {
  74         return is_acpi_device_node(dev->fwnode);
  75 }
  76
  77 static inline void acpi_preset_companion(struct device *dev,
  78                                          struct acpi_device *parent, u64 addr)
  79 {
  80         ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
  81 }
  82
  83 static inline const char *acpi_dev_name(struct acpi_device *adev)
  84 {
  85         return dev_name(&adev->dev);
  86 }
  87
  88 enum acpi_irq_model_id {
  89         ACPI_IRQ_MODEL_PIC = 0,
  90         ACPI_IRQ_MODEL_IOAPIC,
  91         ACPI_IRQ_MODEL_IOSAPIC,
  92         ACPI_IRQ_MODEL_PLATFORM,
  93         ACPI_IRQ_MODEL_GIC,
  94         ACPI_IRQ_MODEL_COUNT
  95 };
  96
  97 extern enum acpi_irq_model_id   acpi_irq_model;
  98
  99 enum acpi_interrupt_id {
 100         ACPI_INTERRUPT_PMI      = 1,
 101         ACPI_INTERRUPT_INIT,
 102         ACPI_INTERRUPT_CPEI,
 103         ACPI_INTERRUPT_COUNT
 104 };
 105
 106 #define ACPI_SPACE_MEM          0
 107
 108 enum acpi_address_range_id {
 109         ACPI_ADDRESS_RANGE_MEMORY = 1,
 110         ACPI_ADDRESS_RANGE_RESERVED = 2,
 111         ACPI_ADDRESS_RANGE_ACPI = 3,
 112         ACPI_ADDRESS_RANGE_NVS  = 4,
 113         ACPI_ADDRESS_RANGE_COUNT
 114 };
 115
 116
 117 /* Table Handlers */
 118
 119 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 120
 121 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
 122                                       const unsigned long end);
 123
 124 /* Debugger support */
 125
 126 struct acpi_debugger_ops {
 127         int (*create_thread)(acpi_osd_exec_callback function, void *context);
 128         ssize_t (*write_log)(const char *msg);
 129         ssize_t (*read_cmd)(char *buffer, size_t length);
 130         int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
 131         int (*notify_command_complete)(void);
 132 };
 133
 134 struct acpi_debugger {
 135         const struct acpi_debugger_ops *ops;
 136         struct module *owner;
 137         struct mutex lock;
 138 };
 139
 140 #ifdef CONFIG_ACPI_DEBUGGER
 141 int __init acpi_debugger_init(void);
 142 int acpi_register_debugger(struct module *owner,
 143                            const struct acpi_debugger_ops *ops);
 144 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
 145 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
 146 ssize_t acpi_debugger_write_log(const char *msg);
 147 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
 148 int acpi_debugger_wait_command_ready(void);
 149 int acpi_debugger_notify_command_complete(void);
 150 #else
 151 static inline int acpi_debugger_init(void)
 152 {
 153         return -ENODEV;
 154 }
 155
 156 static inline int acpi_register_debugger(struct module *owner,
 157                                          const struct acpi_debugger_ops *ops)
 158 {
 159         return -ENODEV;
 160 }
 161
 162 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
 163 {
 164 }
 165
 166 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
 167                                               void *context)
 168 {
 169         return -ENODEV;
 170 }
 171
 172 static inline int acpi_debugger_write_log(const char *msg)
 173 {
 174         return -ENODEV;
 175 }
 176
 177 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
 178 {
 179         return -ENODEV;
 180 }
 181
 182 static inline int acpi_debugger_wait_command_ready(void)
 183 {
 184         return -ENODEV;
 185 }
 186
 187 static inline int acpi_debugger_notify_command_complete(void)
 188 {
 189         return -ENODEV;
 190 }
 191 #endif
 192
 193 #define BAD_MADT_ENTRY(entry, end) (                                        \
 194                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 195                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 196
 197 struct acpi_subtable_proc {
 198         int id;
 199         acpi_tbl_entry_handler handler;
 200         int count;
 201 };
 202
 203 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 204 void __acpi_unmap_table(char *map, unsigned long size);
 205 int early_acpi_boot_init(void);
 206 int acpi_boot_init (void);
 207 void acpi_boot_table_init (void);
 208 int acpi_mps_check (void);
 209 int acpi_numa_init (void);
 210
 211 void early_acpi_table_init(void *data, size_t size);
 212 int acpi_table_init (void);
 213 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 214 int __init acpi_parse_entries(char *id, unsigned long table_size,
 215                               acpi_tbl_entry_handler handler,
 216                               struct acpi_table_header *table_header,
 217                               int entry_id, unsigned int max_entries);
 218 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 219                               int entry_id,
 220                               acpi_tbl_entry_handler handler,
 221                               unsigned int max_entries);
 222 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 223                               int entry_id,
 224                               acpi_tbl_entry_handler handler,
 225                               unsigned int max_entries);
 226 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
 227                               struct acpi_subtable_proc *proc, int proc_num,
 228                               unsigned int max_entries);
 229 int acpi_table_parse_madt(enum acpi_madt_type id,
 230                           acpi_tbl_entry_handler handler,
 231                           unsigned int max_entries);
 232 int acpi_parse_mcfg (struct acpi_table_header *header);
 233 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 234
 235 /* the following four functions are architecture-dependent */
 236 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 237 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 238 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 239 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 240 void acpi_numa_arch_fixup(void);
 241
 242 #ifndef PHYS_CPUID_INVALID
 243 typedef u32 phys_cpuid_t;
 244 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 245 #endif
 246
 247 static inline bool invalid_logical_cpuid(u32 cpuid)
 248 {
 249         return (int)cpuid < 0;
 250 }
 251
 252 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 253 {
 254         return phys_id == PHYS_CPUID_INVALID;
 255 }
 256
 257 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 258 /* Arch dependent functions for cpu hotplug support */
 259 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
 260 int acpi_unmap_cpu(int cpu);
 261 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 262
 263 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 264 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 265 #endif
 266
 267 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 268 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 269 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 270 void acpi_irq_stats_init(void);
 271 extern u32 acpi_irq_handled;
 272 extern u32 acpi_irq_not_handled;
 273 extern unsigned int acpi_sci_irq;
 274 extern bool acpi_no_s5;
 275 #define INVALID_ACPI_IRQ        ((unsigned)-1)
 276 static inline bool acpi_sci_irq_valid(void)
 277 {
 278         return acpi_sci_irq != INVALID_ACPI_IRQ;
 279 }
 280
 281 extern int sbf_port;
 282 extern unsigned long acpi_realmode_flags;
 283
 284 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 285 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 286 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 287
 288 void acpi_set_irq_model(enum acpi_irq_model_id model,
 289                         struct fwnode_handle *fwnode);
 290
 291 #ifdef CONFIG_X86_IO_APIC
 292 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 293 #else
 294 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 295 #endif
 296 /*
 297  * This function undoes the effect of one call to acpi_register_gsi().
 298  * If this matches the last registration, any IRQ resources for gsi
 299  * are freed.
 300  */
 301 void acpi_unregister_gsi (u32 gsi);
 302
 303 struct pci_dev;
 304
 305 int acpi_pci_irq_enable (struct pci_dev *dev);
 306 void acpi_penalize_isa_irq(int irq, int active);
 307 bool acpi_isa_irq_available(int irq);
 308 void acpi_pci_irq_disable (struct pci_dev *dev);
 309
 310 extern int ec_read(u8 addr, u8 *val);
 311 extern int ec_write(u8 addr, u8 val);
 312 extern int ec_transaction(u8 command,
 313                           const u8 *wdata, unsigned wdata_len,
 314                           u8 *rdata, unsigned rdata_len);
 315 extern acpi_handle ec_get_handle(void);
 316
 317 extern bool acpi_is_pnp_device(struct acpi_device *);
 318
 319 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 320
 321 typedef void (*wmi_notify_handler) (u32 value, void *context);
 322
 323 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 324                                         u32 method_id,
 325                                         const struct acpi_buffer *in,
 326                                         struct acpi_buffer *out);
 327 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 328                                         struct acpi_buffer *out);
 329 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 330                                         const struct acpi_buffer *in);
 331 extern acpi_status wmi_install_notify_handler(const char *guid,
 332                                         wmi_notify_handler handler, void *data);
 333 extern acpi_status wmi_remove_notify_handler(const char *guid);
 334 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 335 extern bool wmi_has_guid(const char *guid);
 336
 337 #endif  /* CONFIG_ACPI_WMI */
 338
 339 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 340 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 341 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 342 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 343 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 344 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 345 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 346 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 347 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 348 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 349 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 350 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 351
 352 extern char acpi_video_backlight_string[];
 353 extern long acpi_is_video_device(acpi_handle handle);
 354 extern int acpi_blacklisted(void);
 355 extern void acpi_osi_setup(char *str);
 356 extern bool acpi_osi_is_win8(void);
 357
 358 #ifdef CONFIG_ACPI_NUMA
 359 int acpi_map_pxm_to_online_node(int pxm);
 360 int acpi_get_node(acpi_handle handle);
 361 #else
 362 static inline int acpi_map_pxm_to_online_node(int pxm)
 363 {
 364         return 0;
 365 }
 366 static inline int acpi_get_node(acpi_handle handle)
 367 {
 368         return 0;
 369 }
 370 #endif
 371 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 372
 373 extern int pnpacpi_disabled;
 374
 375 #define PXM_INVAL       (-1)
 376
 377 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 378 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 379 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 380                                      struct resource_win *win);
 381 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 382                                          struct resource_win *win);
 383 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 384 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
 385 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 386                                  struct resource *res);
 387
 388 void acpi_dev_free_resource_list(struct list_head *list);
 389 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 390                            int (*preproc)(struct acpi_resource *, void *),
 391                            void *preproc_data);
 392 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 393                                   unsigned long types);
 394
 395 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 396                                                    void *arg)
 397 {
 398         return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 399 }
 400
 401 int acpi_check_resource_conflict(const struct resource *res);
 402
 403 int acpi_check_region(resource_size_t start, resource_size_t n,
 404                       const char *name);
 405
 406 int acpi_resources_are_enforced(void);
 407
 408 #ifdef CONFIG_HIBERNATION
 409 void __init acpi_no_s4_hw_signature(void);
 410 #endif
 411
 412 #ifdef CONFIG_PM_SLEEP
 413 void __init acpi_old_suspend_ordering(void);
 414 void __init acpi_nvs_nosave(void);
 415 void __init acpi_nvs_nosave_s3(void);
 416 #endif /* CONFIG_PM_SLEEP */
 417
 418 struct acpi_osc_context {
 419         char *uuid_str;                 /* UUID string */
 420         int rev;
 421         struct acpi_buffer cap;         /* list of DWORD capabilities */
 422         struct acpi_buffer ret;         /* free by caller if success */
 423 };
 424
 425 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 426 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 427
 428 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 429 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 430 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 431 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 432
 433 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 434 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
 435 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
 436 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 437 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 438 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 439
 440 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 441 #define OSC_SB_PAD_SUPPORT                      0x00000001
 442 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 443 #define OSC_SB_PR3_SUPPORT                      0x00000004
 444 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 445 #define OSC_SB_APEI_SUPPORT                     0x00000010
 446 #define OSC_SB_CPC_SUPPORT                      0x00000020
 447
 448 extern bool osc_sb_apei_support_acked;
 449
 450 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 451 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 452 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
 453 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 454 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 455 #define OSC_PCI_MSI_SUPPORT                     0x00000010
 456 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 457
 458 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 459 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 460 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 461 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 462 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 463 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 464 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
 465
 466 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 467 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 468 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 469 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 470 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 471 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 472 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 473 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 474 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 475 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 476
 477 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 478                                              u32 *mask, u32 req);
 479
 480 /* Enable _OST when all relevant hotplug operations are enabled */
 481 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 482         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 483         defined(CONFIG_ACPI_CONTAINER)
 484 #define ACPI_HOTPLUG_OST
 485 #endif
 486
 487 /* _OST Source Event Code (OSPM Action) */
 488 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 489 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 490 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 491
 492 /* _OST General Processing Status Code */
 493 #define ACPI_OST_SC_SUCCESS                     0x0
 494 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 495 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 496
 497 /* _OST OS Shutdown Processing (0x100) Status Code */
 498 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 499 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 500 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 501 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 502
 503 /* _OST Ejection Request (0x3, 0x103) Status Code */
 504 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 505 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 506 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 507 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 508 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 509
 510 /* _OST Insertion Request (0x200) Status Code */
 511 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 512 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 513 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 514
 515 extern void acpi_early_init(void);
 516 extern void acpi_subsystem_init(void);
 517
 518 extern int acpi_nvs_register(__u64 start, __u64 size);
 519
 520 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 521                                     void *data);
 522
 523 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 524                                                const struct device *dev);
 525
 526 extern bool acpi_driver_match_device(struct device *dev,
 527                                      const struct device_driver *drv);
 528 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 529 int acpi_device_modalias(struct device *, char *, int);
 530 void acpi_walk_dep_device_list(acpi_handle handle);
 531
 532 struct platform_device *acpi_create_platform_device(struct acpi_device *);
 533 #define ACPI_PTR(_ptr)  (_ptr)
 534
 535 #else   /* !CONFIG_ACPI */
 536
 537 #define acpi_disabled 1
 538
 539 #define ACPI_COMPANION(dev)             (NULL)
 540 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 541 #define ACPI_HANDLE(dev)                (NULL)
 542 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
 543
 544 struct fwnode_handle;
 545
 546 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 547 {
 548         return false;
 549 }
 550
 551 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
 552 {
 553         return false;
 554 }
 555
 556 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
 557 {
 558         return NULL;
 559 }
 560
 561 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
 562 {
 563         return false;
 564 }
 565
 566 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
 567 {
 568         return NULL;
 569 }
 570
 571 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 572 {
 573         return NULL;
 574 }
 575
 576 static inline bool has_acpi_companion(struct device *dev)
 577 {
 578         return false;
 579 }
 580
 581 static inline void acpi_preset_companion(struct device *dev,
 582                                          struct acpi_device *parent, u64 addr)
 583 {
 584 }
 585
 586 static inline const char *acpi_dev_name(struct acpi_device *adev)
 587 {
 588         return NULL;
 589 }
 590
 591 static inline void early_acpi_table_init(void *data, size_t size) { }
 592 static inline void acpi_early_init(void) { }
 593 static inline void acpi_subsystem_init(void) { }
 594
 595 static inline int early_acpi_boot_init(void)
 596 {
 597         return 0;
 598 }
 599 static inline int acpi_boot_init(void)
 600 {
 601         return 0;
 602 }
 603
 604 static inline void acpi_boot_table_init(void)
 605 {
 606         return;
 607 }
 608
 609 static inline int acpi_mps_check(void)
 610 {
 611         return 0;
 612 }
 613
 614 static inline int acpi_check_resource_conflict(struct resource *res)
 615 {
 616         return 0;
 617 }
 618
 619 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 620                                     const char *name)
 621 {
 622         return 0;
 623 }
 624
 625 struct acpi_table_header;
 626 static inline int acpi_table_parse(char *id,
 627                                 int (*handler)(struct acpi_table_header *))
 628 {
 629         return -ENODEV;
 630 }
 631
 632 static inline int acpi_nvs_register(__u64 start, __u64 size)
 633 {
 634         return 0;
 635 }
 636
 637 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 638                                            void *data)
 639 {
 640         return 0;
 641 }
 642
 643 struct acpi_device_id;
 644
 645 static inline const struct acpi_device_id *acpi_match_device(
 646         const struct acpi_device_id *ids, const struct device *dev)
 647 {
 648         return NULL;
 649 }
 650
 651 static inline bool acpi_driver_match_device(struct device *dev,
 652                                             const struct device_driver *drv)
 653 {
 654         return false;
 655 }
 656
 657 static inline int acpi_device_uevent_modalias(struct device *dev,
 658                                 struct kobj_uevent_env *env)
 659 {
 660         return -ENODEV;
 661 }
 662
 663 static inline int acpi_device_modalias(struct device *dev,
 664                                 char *buf, int size)
 665 {
 666         return -ENODEV;
 667 }
 668
 669 static inline bool acpi_dma_supported(struct acpi_device *adev)
 670 {
 671         return false;
 672 }
 673
 674 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
 675 {
 676         return DEV_DMA_NOT_SUPPORTED;
 677 }
 678
 679 #define ACPI_PTR(_ptr)  (NULL)
 680
 681 #endif  /* !CONFIG_ACPI */
 682
 683 #ifdef CONFIG_ACPI
 684 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 685                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 686
 687 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 688                                   u32 pm1a_control, u32 pm1b_control);
 689
 690 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 691                                         u32 val_a,  u32 val_b));
 692
 693 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 694                                            u32 val_a, u32 val_b);
 695
 696 #ifdef CONFIG_X86
 697 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 698 #else
 699 static inline void arch_reserve_mem_area(acpi_physical_address addr,
 700                                           size_t size)
 701 {
 702 }
 703 #endif /* CONFIG_X86 */
 704 #else
 705 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 706 #endif
 707
 708 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 709 int acpi_dev_runtime_suspend(struct device *dev);
 710 int acpi_dev_runtime_resume(struct device *dev);
 711 int acpi_subsys_runtime_suspend(struct device *dev);
 712 int acpi_subsys_runtime_resume(struct device *dev);
 713 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 714 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 715 #else
 716 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 717 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 718 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 719 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 720 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 721 {
 722         return NULL;
 723 }
 724 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 725 {
 726         return -ENODEV;
 727 }
 728 #endif
 729
 730 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 731 int acpi_dev_suspend_late(struct device *dev);
 732 int acpi_dev_resume_early(struct device *dev);
 733 int acpi_subsys_prepare(struct device *dev);
 734 void acpi_subsys_complete(struct device *dev);
 735 int acpi_subsys_suspend_late(struct device *dev);
 736 int acpi_subsys_resume_early(struct device *dev);
 737 int acpi_subsys_suspend(struct device *dev);
 738 int acpi_subsys_freeze(struct device *dev);
 739 #else
 740 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 741 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 742 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 743 static inline void acpi_subsys_complete(struct device *dev) {}
 744 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 745 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 746 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 747 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
 748 #endif
 749
 750 #ifdef CONFIG_ACPI
 751 __printf(3, 4)
 752 void acpi_handle_printk(const char *level, acpi_handle handle,
 753                         const char *fmt, ...);
 754 #else   /* !CONFIG_ACPI */
 755 static inline __printf(3, 4) void
 756 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 757 #endif  /* !CONFIG_ACPI */
 758
 759 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
 760 __printf(3, 4)
 761 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
 762 #else
 763 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
 764         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
 765 #endif
 766
 767 /*
 768  * acpi_handle_<level>: Print message with ACPI prefix and object path
 769  *
 770  * These interfaces acquire the global namespace mutex to obtain an object
 771  * path.  In interrupt context, it shows the object path as <n/a>.
 772  */
 773 #define acpi_handle_emerg(handle, fmt, ...)                             \
 774         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 775 #define acpi_handle_alert(handle, fmt, ...)                             \
 776         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 777 #define acpi_handle_crit(handle, fmt, ...)                              \
 778         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 779 #define acpi_handle_err(handle, fmt, ...)                               \
 780         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 781 #define acpi_handle_warn(handle, fmt, ...)                              \
 782         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 783 #define acpi_handle_notice(handle, fmt, ...)                            \
 784         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 785 #define acpi_handle_info(handle, fmt, ...)                              \
 786         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 787
 788 #if defined(DEBUG)
 789 #define acpi_handle_debug(handle, fmt, ...)                             \
 790         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 791 #else
 792 #if defined(CONFIG_DYNAMIC_DEBUG)
 793 #define acpi_handle_debug(handle, fmt, ...)                             \
 794 do {                                                                    \
 795         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
 796         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
 797                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
 798                                 ##__VA_ARGS__);                         \
 799 } while (0)
 800 #else
 801 #define acpi_handle_debug(handle, fmt, ...)                             \
 802 ({                                                                      \
 803         if (0)                                                          \
 804                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 805         0;                                                              \
 806 })
 807 #endif
 808 #endif
 809
 810 struct acpi_gpio_params {
 811         unsigned int crs_entry_index;
 812         unsigned int line_index;
 813         bool active_low;
 814 };
 815
 816 struct acpi_gpio_mapping {
 817         const char *name;
 818         const struct acpi_gpio_params *data;
 819         unsigned int size;
 820 };
 821
 822 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
 823 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 824                               const struct acpi_gpio_mapping *gpios);
 825
 826 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
 827 {
 828         if (adev)
 829                 adev->driver_gpios = NULL;
 830 }
 831
 832 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
 833 #else
 834 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 835                               const struct acpi_gpio_mapping *gpios)
 836 {
 837         return -ENXIO;
 838 }
 839 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
 840
 841 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 842 {
 843         return -ENXIO;
 844 }
 845 #endif
 846
 847 /* Device properties */
 848
 849 #define MAX_ACPI_REFERENCE_ARGS 8
 850 struct acpi_reference_args {
 851         struct acpi_device *adev;
 852         size_t nargs;
 853         u64 args[MAX_ACPI_REFERENCE_ARGS];
 854 };
 855
 856 #ifdef CONFIG_ACPI
 857 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 858                           acpi_object_type type, const union acpi_object **obj);
 859 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 860                                      const char *name, size_t index,
 861                                      struct acpi_reference_args *args);
 862
 863 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
 864                        void **valptr);
 865 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 866                               enum dev_prop_type proptype, void *val);
 867 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
 868                         enum dev_prop_type proptype, void *val, size_t nval);
 869 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 870                        enum dev_prop_type proptype, void *val, size_t nval);
 871
 872 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
 873                                             struct fwnode_handle *subnode);
 874
 875 struct acpi_probe_entry;
 876 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
 877                                                  struct acpi_probe_entry *);
 878
 879 #define ACPI_TABLE_ID_LEN       5
 880
 881 /**
 882  * struct acpi_probe_entry - boot-time probing entry
 883  * @id:                 ACPI table name
 884  * @type:               Optional subtable type to match
 885  *                      (if @id contains subtables)
 886  * @subtable_valid:     Optional callback to check the validity of
 887  *                      the subtable
 888  * @probe_table:        Callback to the driver being probed when table
 889  *                      match is successful
 890  * @probe_subtbl:       Callback to the driver being probed when table and
 891  *                      subtable match (and optional callback is successful)
 892  * @driver_data:        Sideband data provided back to the driver
 893  */
 894 struct acpi_probe_entry {
 895         __u8 id[ACPI_TABLE_ID_LEN];
 896         __u8 type;
 897         acpi_probe_entry_validate_subtbl subtable_valid;
 898         union {
 899                 acpi_tbl_table_handler probe_table;
 900                 acpi_tbl_entry_handler probe_subtbl;
 901         };
 902         kernel_ulong_t driver_data;
 903 };
 904
 905 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn)      \
 906         static const struct acpi_probe_entry __acpi_probe_##name        \
 907                 __used __section(__##table##_acpi_probe_table)          \
 908                  = {                                                    \
 909                         .id = table_id,                                 \
 910                         .type = subtable,                               \
 911                         .subtable_valid = valid,                        \
 912                         .probe_table = (acpi_tbl_table_handler)fn,      \
 913                         .driver_data = data,                            \
 914                    }
 915
 916 #define ACPI_PROBE_TABLE(name)          __##name##_acpi_probe_table
 917 #define ACPI_PROBE_TABLE_END(name)      __##name##_acpi_probe_table_end
 918
 919 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
 920
 921 #define acpi_probe_device_table(t)                                      \
 922         ({                                                              \
 923                 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),     \
 924                                                ACPI_PROBE_TABLE_END(t); \
 925                 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t),         \
 926                                           (&ACPI_PROBE_TABLE_END(t) -   \
 927                                            &ACPI_PROBE_TABLE(t)));      \
 928         })
 929 #else
 930 static inline int acpi_dev_get_property(struct acpi_device *adev,
 931                                         const char *name, acpi_object_type type,
 932                                         const union acpi_object **obj)
 933 {
 934         return -ENXIO;
 935 }
 936
 937 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 938                                 const char *name, size_t index,
 939                                 struct acpi_reference_args *args)
 940 {
 941         return -ENXIO;
 942 }
 943
 944 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
 945                                      const char *propname,
 946                                      void **valptr)
 947 {
 948         return -ENXIO;
 949 }
 950
 951 static inline int acpi_dev_prop_get(struct acpi_device *adev,
 952                                     const char *propname,
 953                                     void **valptr)
 954 {
 955         return -ENXIO;
 956 }
 957
 958 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
 959                                             const char *propname,
 960                                             enum dev_prop_type proptype,
 961                                             void *val)
 962 {
 963         return -ENXIO;
 964 }
 965
 966 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
 967                                       const char *propname,
 968                                       enum dev_prop_type proptype,
 969                                       void *val, size_t nval)
 970 {
 971         return -ENXIO;
 972 }
 973
 974 static inline int acpi_dev_prop_read(struct acpi_device *adev,
 975                                      const char *propname,
 976                                      enum dev_prop_type proptype,
 977                                      void *val, size_t nval)
 978 {
 979         return -ENXIO;
 980 }
 981
 982 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
 983                                                 struct fwnode_handle *subnode)
 984 {
 985         return NULL;
 986 }
 987
 988 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
 989         static const void * __acpi_table_##name[]                       \
 990                 __attribute__((unused))                                 \
 991                  = { (void *) table_id,                                 \
 992                      (void *) subtable,                                 \
 993                      (void *) valid,                                    \
 994                      (void *) fn,                                       \
 995                      (void *) data }
 996
 997 #define acpi_probe_device_table(t)      ({ int __r = 0; __r;})
 998 #endif
 999
1000 #endif  /*_LINUX_ACPI_H*/