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 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
  89
  90 enum acpi_irq_model_id {
  91         ACPI_IRQ_MODEL_PIC = 0,
  92         ACPI_IRQ_MODEL_IOAPIC,
  93         ACPI_IRQ_MODEL_IOSAPIC,
  94         ACPI_IRQ_MODEL_PLATFORM,
  95         ACPI_IRQ_MODEL_GIC,
  96         ACPI_IRQ_MODEL_COUNT
  97 };
  98
  99 extern enum acpi_irq_model_id   acpi_irq_model;
 100
 101 enum acpi_interrupt_id {
 102         ACPI_INTERRUPT_PMI      = 1,
 103         ACPI_INTERRUPT_INIT,
 104         ACPI_INTERRUPT_CPEI,
 105         ACPI_INTERRUPT_COUNT
 106 };
 107
 108 #define ACPI_SPACE_MEM          0
 109
 110 enum acpi_address_range_id {
 111         ACPI_ADDRESS_RANGE_MEMORY = 1,
 112         ACPI_ADDRESS_RANGE_RESERVED = 2,
 113         ACPI_ADDRESS_RANGE_ACPI = 3,
 114         ACPI_ADDRESS_RANGE_NVS  = 4,
 115         ACPI_ADDRESS_RANGE_COUNT
 116 };
 117
 118
 119 /* Table Handlers */
 120
 121 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
 122
 123 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
 124                                       const unsigned long end);
 125
 126 /* Debugger support */
 127
 128 struct acpi_debugger_ops {
 129         int (*create_thread)(acpi_osd_exec_callback function, void *context);
 130         ssize_t (*write_log)(const char *msg);
 131         ssize_t (*read_cmd)(char *buffer, size_t length);
 132         int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
 133         int (*notify_command_complete)(void);
 134 };
 135
 136 struct acpi_debugger {
 137         const struct acpi_debugger_ops *ops;
 138         struct module *owner;
 139         struct mutex lock;
 140 };
 141
 142 #ifdef CONFIG_ACPI_DEBUGGER
 143 int __init acpi_debugger_init(void);
 144 int acpi_register_debugger(struct module *owner,
 145                            const struct acpi_debugger_ops *ops);
 146 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
 147 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
 148 ssize_t acpi_debugger_write_log(const char *msg);
 149 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
 150 int acpi_debugger_wait_command_ready(void);
 151 int acpi_debugger_notify_command_complete(void);
 152 #else
 153 static inline int acpi_debugger_init(void)
 154 {
 155         return -ENODEV;
 156 }
 157
 158 static inline int acpi_register_debugger(struct module *owner,
 159                                          const struct acpi_debugger_ops *ops)
 160 {
 161         return -ENODEV;
 162 }
 163
 164 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
 165 {
 166 }
 167
 168 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
 169                                               void *context)
 170 {
 171         return -ENODEV;
 172 }
 173
 174 static inline int acpi_debugger_write_log(const char *msg)
 175 {
 176         return -ENODEV;
 177 }
 178
 179 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
 180 {
 181         return -ENODEV;
 182 }
 183
 184 static inline int acpi_debugger_wait_command_ready(void)
 185 {
 186         return -ENODEV;
 187 }
 188
 189 static inline int acpi_debugger_notify_command_complete(void)
 190 {
 191         return -ENODEV;
 192 }
 193 #endif
 194
 195 #define BAD_MADT_ENTRY(entry, end) (                                        \
 196                 (!entry) || (unsigned long)entry + sizeof(*entry) > end ||  \
 197                 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
 198
 199 struct acpi_subtable_proc {
 200         int id;
 201         acpi_tbl_entry_handler handler;
 202         int count;
 203 };
 204
 205 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
 206 void __acpi_unmap_table(char *map, unsigned long size);
 207 int early_acpi_boot_init(void);
 208 int acpi_boot_init (void);
 209 void acpi_boot_table_init (void);
 210 int acpi_mps_check (void);
 211 int acpi_numa_init (void);
 212
 213 int acpi_table_init (void);
 214 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
 215 int __init acpi_parse_entries(char *id, unsigned long table_size,
 216                               acpi_tbl_entry_handler handler,
 217                               struct acpi_table_header *table_header,
 218                               int entry_id, unsigned int max_entries);
 219 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 220                               int entry_id,
 221                               acpi_tbl_entry_handler handler,
 222                               unsigned int max_entries);
 223 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
 224                               int entry_id,
 225                               acpi_tbl_entry_handler handler,
 226                               unsigned int max_entries);
 227 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
 228                               struct acpi_subtable_proc *proc, int proc_num,
 229                               unsigned int max_entries);
 230 int acpi_table_parse_madt(enum acpi_madt_type id,
 231                           acpi_tbl_entry_handler handler,
 232                           unsigned int max_entries);
 233 int acpi_parse_mcfg (struct acpi_table_header *header);
 234 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
 235
 236 /* the following numa functions are architecture-dependent */
 237 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 238
 239 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
 240 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 241 #else
 242 static inline void
 243 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
 244 #endif
 245
 246 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
 247
 248 #ifdef CONFIG_ARM64
 249 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
 250 #else
 251 static inline void
 252 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
 253 #endif
 254
 255 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 256
 257 #ifndef PHYS_CPUID_INVALID
 258 typedef u32 phys_cpuid_t;
 259 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
 260 #endif
 261
 262 static inline bool invalid_logical_cpuid(u32 cpuid)
 263 {
 264         return (int)cpuid < 0;
 265 }
 266
 267 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
 268 {
 269         return phys_id == PHYS_CPUID_INVALID;
 270 }
 271
 272 /* Validate the processor object's proc_id */
 273 bool acpi_processor_validate_proc_id(int proc_id);
 274
 275 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 276 /* Arch dependent functions for cpu hotplug support */
 277 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
 278 int acpi_unmap_cpu(int cpu);
 279 int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid);
 280 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 281
 282 void acpi_set_processor_mapping(void);
 283
 284 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 285 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
 286 #endif
 287
 288 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 289 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 290 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
 291 void acpi_irq_stats_init(void);
 292 extern u32 acpi_irq_handled;
 293 extern u32 acpi_irq_not_handled;
 294 extern unsigned int acpi_sci_irq;
 295 extern bool acpi_no_s5;
 296 #define INVALID_ACPI_IRQ        ((unsigned)-1)
 297 static inline bool acpi_sci_irq_valid(void)
 298 {
 299         return acpi_sci_irq != INVALID_ACPI_IRQ;
 300 }
 301
 302 extern int sbf_port;
 303 extern unsigned long acpi_realmode_flags;
 304
 305 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
 306 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 307 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
 308
 309 void acpi_set_irq_model(enum acpi_irq_model_id model,
 310                         struct fwnode_handle *fwnode);
 311
 312 #ifdef CONFIG_X86_IO_APIC
 313 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
 314 #else
 315 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
 316 #endif
 317 /*
 318  * This function undoes the effect of one call to acpi_register_gsi().
 319  * If this matches the last registration, any IRQ resources for gsi
 320  * are freed.
 321  */
 322 void acpi_unregister_gsi (u32 gsi);
 323
 324 struct pci_dev;
 325
 326 int acpi_pci_irq_enable (struct pci_dev *dev);
 327 void acpi_penalize_isa_irq(int irq, int active);
 328 bool acpi_isa_irq_available(int irq);
 329 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
 330 void acpi_pci_irq_disable (struct pci_dev *dev);
 331
 332 extern int ec_read(u8 addr, u8 *val);
 333 extern int ec_write(u8 addr, u8 val);
 334 extern int ec_transaction(u8 command,
 335                           const u8 *wdata, unsigned wdata_len,
 336                           u8 *rdata, unsigned rdata_len);
 337 extern acpi_handle ec_get_handle(void);
 338
 339 extern bool acpi_is_pnp_device(struct acpi_device *);
 340
 341 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 342
 343 typedef void (*wmi_notify_handler) (u32 value, void *context);
 344
 345 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
 346                                         u32 method_id,
 347                                         const struct acpi_buffer *in,
 348                                         struct acpi_buffer *out);
 349 extern acpi_status wmi_query_block(const char *guid, u8 instance,
 350                                         struct acpi_buffer *out);
 351 extern acpi_status wmi_set_block(const char *guid, u8 instance,
 352                                         const struct acpi_buffer *in);
 353 extern acpi_status wmi_install_notify_handler(const char *guid,
 354                                         wmi_notify_handler handler, void *data);
 355 extern acpi_status wmi_remove_notify_handler(const char *guid);
 356 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
 357 extern bool wmi_has_guid(const char *guid);
 358
 359 #endif  /* CONFIG_ACPI_WMI */
 360
 361 #define ACPI_VIDEO_OUTPUT_SWITCHING                     0x0001
 362 #define ACPI_VIDEO_DEVICE_POSTING                       0x0002
 363 #define ACPI_VIDEO_ROM_AVAILABLE                        0x0004
 364 #define ACPI_VIDEO_BACKLIGHT                            0x0008
 365 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR               0x0010
 366 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO                0x0020
 367 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR        0x0040
 368 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO         0x0080
 369 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR                 0x0100
 370 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO                  0x0200
 371 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR          0x0400
 372 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO           0x0800
 373
 374 extern char acpi_video_backlight_string[];
 375 extern long acpi_is_video_device(acpi_handle handle);
 376 extern int acpi_blacklisted(void);
 377 extern void acpi_osi_setup(char *str);
 378 extern bool acpi_osi_is_win8(void);
 379
 380 #ifdef CONFIG_ACPI_NUMA
 381 int acpi_map_pxm_to_online_node(int pxm);
 382 int acpi_get_node(acpi_handle handle);
 383 #else
 384 static inline int acpi_map_pxm_to_online_node(int pxm)
 385 {
 386         return 0;
 387 }
 388 static inline int acpi_get_node(acpi_handle handle)
 389 {
 390         return 0;
 391 }
 392 #endif
 393 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 394
 395 extern int pnpacpi_disabled;
 396
 397 #define PXM_INVAL       (-1)
 398
 399 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
 400 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
 401 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
 402                                      struct resource_win *win);
 403 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
 404                                          struct resource_win *win);
 405 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
 406 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
 407 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
 408                                  struct resource *res);
 409
 410 void acpi_dev_free_resource_list(struct list_head *list);
 411 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 412                            int (*preproc)(struct acpi_resource *, void *),
 413                            void *preproc_data);
 414 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
 415                                   unsigned long types);
 416
 417 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
 418                                                    void *arg)
 419 {
 420         return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
 421 }
 422
 423 int acpi_check_resource_conflict(const struct resource *res);
 424
 425 int acpi_check_region(resource_size_t start, resource_size_t n,
 426                       const char *name);
 427
 428 int acpi_resources_are_enforced(void);
 429
 430 #ifdef CONFIG_HIBERNATION
 431 void __init acpi_no_s4_hw_signature(void);
 432 #endif
 433
 434 #ifdef CONFIG_PM_SLEEP
 435 void __init acpi_old_suspend_ordering(void);
 436 void __init acpi_nvs_nosave(void);
 437 void __init acpi_nvs_nosave_s3(void);
 438 #endif /* CONFIG_PM_SLEEP */
 439
 440 struct acpi_osc_context {
 441         char *uuid_str;                 /* UUID string */
 442         int rev;
 443         struct acpi_buffer cap;         /* list of DWORD capabilities */
 444         struct acpi_buffer ret;         /* free by caller if success */
 445 };
 446
 447 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 448 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 449
 450 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 451 #define OSC_QUERY_DWORD                         0       /* DWORD 1 */
 452 #define OSC_SUPPORT_DWORD                       1       /* DWORD 2 */
 453 #define OSC_CONTROL_DWORD                       2       /* DWORD 3 */
 454
 455 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 456 #define OSC_QUERY_ENABLE                        0x00000001  /* input */
 457 #define OSC_REQUEST_ERROR                       0x00000002  /* return */
 458 #define OSC_INVALID_UUID_ERROR                  0x00000004  /* return */
 459 #define OSC_INVALID_REVISION_ERROR              0x00000008  /* return */
 460 #define OSC_CAPABILITIES_MASK_ERROR             0x00000010  /* return */
 461
 462 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 463 #define OSC_SB_PAD_SUPPORT                      0x00000001
 464 #define OSC_SB_PPC_OST_SUPPORT                  0x00000002
 465 #define OSC_SB_PR3_SUPPORT                      0x00000004
 466 #define OSC_SB_HOTPLUG_OST_SUPPORT              0x00000008
 467 #define OSC_SB_APEI_SUPPORT                     0x00000010
 468 #define OSC_SB_CPC_SUPPORT                      0x00000020
 469 #define OSC_SB_CPCV2_SUPPORT                    0x00000040
 470 #define OSC_SB_PCLPI_SUPPORT                    0x00000080
 471 #define OSC_SB_OSLPI_SUPPORT                    0x00000100
 472
 473 extern bool osc_sb_apei_support_acked;
 474 extern bool osc_pc_lpi_support_confirmed;
 475
 476 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
 477 #define OSC_PCI_EXT_CONFIG_SUPPORT              0x00000001
 478 #define OSC_PCI_ASPM_SUPPORT                    0x00000002
 479 #define OSC_PCI_CLOCK_PM_SUPPORT                0x00000004
 480 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT          0x00000008
 481 #define OSC_PCI_MSI_SUPPORT                     0x00000010
 482 #define OSC_PCI_SUPPORT_MASKS                   0x0000001f
 483
 484 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 485 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL       0x00000001
 486 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL          0x00000002
 487 #define OSC_PCI_EXPRESS_PME_CONTROL             0x00000004
 488 #define OSC_PCI_EXPRESS_AER_CONTROL             0x00000008
 489 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL      0x00000010
 490 #define OSC_PCI_CONTROL_MASKS                   0x0000001f
 491
 492 #define ACPI_GSB_ACCESS_ATTRIB_QUICK            0x00000002
 493 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV         0x00000004
 494 #define ACPI_GSB_ACCESS_ATTRIB_BYTE             0x00000006
 495 #define ACPI_GSB_ACCESS_ATTRIB_WORD             0x00000008
 496 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK            0x0000000A
 497 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE        0x0000000B
 498 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL        0x0000000C
 499 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL       0x0000000D
 500 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES        0x0000000E
 501 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS      0x0000000F
 502
 503 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 504                                              u32 *mask, u32 req);
 505
 506 /* Enable _OST when all relevant hotplug operations are enabled */
 507 #if defined(CONFIG_ACPI_HOTPLUG_CPU) &&                 \
 508         defined(CONFIG_ACPI_HOTPLUG_MEMORY) &&          \
 509         defined(CONFIG_ACPI_CONTAINER)
 510 #define ACPI_HOTPLUG_OST
 511 #endif
 512
 513 /* _OST Source Event Code (OSPM Action) */
 514 #define ACPI_OST_EC_OSPM_SHUTDOWN               0x100
 515 #define ACPI_OST_EC_OSPM_EJECT                  0x103
 516 #define ACPI_OST_EC_OSPM_INSERTION              0x200
 517
 518 /* _OST General Processing Status Code */
 519 #define ACPI_OST_SC_SUCCESS                     0x0
 520 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE        0x1
 521 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY         0x2
 522
 523 /* _OST OS Shutdown Processing (0x100) Status Code */
 524 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED          0x80
 525 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS     0x81
 526 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED       0x82
 527 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED   0x83
 528
 529 /* _OST Ejection Request (0x3, 0x103) Status Code */
 530 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED         0x80
 531 #define ACPI_OST_SC_DEVICE_IN_USE               0x81
 532 #define ACPI_OST_SC_DEVICE_BUSY                 0x82
 533 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY       0x83
 534 #define ACPI_OST_SC_EJECT_IN_PROGRESS           0x84
 535
 536 /* _OST Insertion Request (0x200) Status Code */
 537 #define ACPI_OST_SC_INSERT_IN_PROGRESS          0x80
 538 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE         0x81
 539 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED        0x82
 540
 541 extern void acpi_early_init(void);
 542 extern void acpi_subsystem_init(void);
 543
 544 extern int acpi_nvs_register(__u64 start, __u64 size);
 545
 546 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 547                                     void *data);
 548
 549 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 550                                                const struct device *dev);
 551
 552 extern bool acpi_driver_match_device(struct device *dev,
 553                                      const struct device_driver *drv);
 554 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
 555 int acpi_device_modalias(struct device *, char *, int);
 556 void acpi_walk_dep_device_list(acpi_handle handle);
 557
 558 struct platform_device *acpi_create_platform_device(struct acpi_device *,
 559                                                     struct property_entry *);
 560 #define ACPI_PTR(_ptr)  (_ptr)
 561
 562 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
 563 {
 564         adev->flags.visited = true;
 565 }
 566
 567 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
 568 {
 569         adev->flags.visited = false;
 570 }
 571
 572 enum acpi_reconfig_event  {
 573         ACPI_RECONFIG_DEVICE_ADD = 0,
 574         ACPI_RECONFIG_DEVICE_REMOVE,
 575 };
 576
 577 int acpi_reconfig_notifier_register(struct notifier_block *nb);
 578 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
 579
 580 #else   /* !CONFIG_ACPI */
 581
 582 #define acpi_disabled 1
 583
 584 #define ACPI_COMPANION(dev)             (NULL)
 585 #define ACPI_COMPANION_SET(dev, adev)   do { } while (0)
 586 #define ACPI_HANDLE(dev)                (NULL)
 587 #define ACPI_DEVICE_CLASS(_cls, _msk)   .cls = (0), .cls_msk = (0),
 588
 589 struct fwnode_handle;
 590
 591 static inline bool acpi_dev_found(const char *hid)
 592 {
 593         return false;
 594 }
 595
 596 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
 597 {
 598         return false;
 599 }
 600
 601 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
 602 {
 603         return false;
 604 }
 605
 606 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
 607 {
 608         return NULL;
 609 }
 610
 611 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
 612 {
 613         return false;
 614 }
 615
 616 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
 617 {
 618         return NULL;
 619 }
 620
 621 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
 622                                         const char *name)
 623 {
 624         return false;
 625 }
 626
 627 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
 628 {
 629         return NULL;
 630 }
 631
 632 static inline bool has_acpi_companion(struct device *dev)
 633 {
 634         return false;
 635 }
 636
 637 static inline void acpi_preset_companion(struct device *dev,
 638                                          struct acpi_device *parent, u64 addr)
 639 {
 640 }
 641
 642 static inline const char *acpi_dev_name(struct acpi_device *adev)
 643 {
 644         return NULL;
 645 }
 646
 647 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
 648 {
 649         return NULL;
 650 }
 651
 652 static inline void acpi_early_init(void) { }
 653 static inline void acpi_subsystem_init(void) { }
 654
 655 static inline int early_acpi_boot_init(void)
 656 {
 657         return 0;
 658 }
 659 static inline int acpi_boot_init(void)
 660 {
 661         return 0;
 662 }
 663
 664 static inline void acpi_boot_table_init(void)
 665 {
 666         return;
 667 }
 668
 669 static inline int acpi_mps_check(void)
 670 {
 671         return 0;
 672 }
 673
 674 static inline int acpi_check_resource_conflict(struct resource *res)
 675 {
 676         return 0;
 677 }
 678
 679 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
 680                                     const char *name)
 681 {
 682         return 0;
 683 }
 684
 685 struct acpi_table_header;
 686 static inline int acpi_table_parse(char *id,
 687                                 int (*handler)(struct acpi_table_header *))
 688 {
 689         return -ENODEV;
 690 }
 691
 692 static inline int acpi_nvs_register(__u64 start, __u64 size)
 693 {
 694         return 0;
 695 }
 696
 697 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 698                                            void *data)
 699 {
 700         return 0;
 701 }
 702
 703 struct acpi_device_id;
 704
 705 static inline const struct acpi_device_id *acpi_match_device(
 706         const struct acpi_device_id *ids, const struct device *dev)
 707 {
 708         return NULL;
 709 }
 710
 711 static inline bool acpi_driver_match_device(struct device *dev,
 712                                             const struct device_driver *drv)
 713 {
 714         return false;
 715 }
 716
 717 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
 718                                                    const u8 *uuid,
 719                                                    int rev, int func,
 720                                                    union acpi_object *argv4)
 721 {
 722         return NULL;
 723 }
 724
 725 static inline int acpi_device_uevent_modalias(struct device *dev,
 726                                 struct kobj_uevent_env *env)
 727 {
 728         return -ENODEV;
 729 }
 730
 731 static inline int acpi_device_modalias(struct device *dev,
 732                                 char *buf, int size)
 733 {
 734         return -ENODEV;
 735 }
 736
 737 static inline bool acpi_dma_supported(struct acpi_device *adev)
 738 {
 739         return false;
 740 }
 741
 742 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
 743 {
 744         return DEV_DMA_NOT_SUPPORTED;
 745 }
 746
 747 #define ACPI_PTR(_ptr)  (NULL)
 748
 749 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
 750 {
 751 }
 752
 753 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
 754 {
 755 }
 756
 757 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
 758 {
 759         return -EINVAL;
 760 }
 761
 762 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
 763 {
 764         return -EINVAL;
 765 }
 766
 767 #endif  /* !CONFIG_ACPI */
 768
 769 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
 770 int acpi_ioapic_add(acpi_handle root);
 771 #else
 772 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
 773 #endif
 774
 775 #ifdef CONFIG_ACPI
 776 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 777                                u32 pm1a_ctrl,  u32 pm1b_ctrl));
 778
 779 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
 780                                   u32 pm1a_control, u32 pm1b_control);
 781
 782 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 783                                         u32 val_a,  u32 val_b));
 784
 785 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
 786                                            u32 val_a, u32 val_b);
 787
 788 #ifdef CONFIG_X86
 789 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
 790 #else
 791 static inline void arch_reserve_mem_area(acpi_physical_address addr,
 792                                           size_t size)
 793 {
 794 }
 795 #endif /* CONFIG_X86 */
 796 #else
 797 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
 798 #endif
 799
 800 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
 801 int acpi_dev_runtime_suspend(struct device *dev);
 802 int acpi_dev_runtime_resume(struct device *dev);
 803 int acpi_subsys_runtime_suspend(struct device *dev);
 804 int acpi_subsys_runtime_resume(struct device *dev);
 805 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 806 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 807 #else
 808 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 809 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 810 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 811 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
 812 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 813 {
 814         return NULL;
 815 }
 816 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 817 {
 818         return -ENODEV;
 819 }
 820 #endif
 821
 822 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 823 int acpi_dev_suspend_late(struct device *dev);
 824 int acpi_dev_resume_early(struct device *dev);
 825 int acpi_subsys_prepare(struct device *dev);
 826 void acpi_subsys_complete(struct device *dev);
 827 int acpi_subsys_suspend_late(struct device *dev);
 828 int acpi_subsys_resume_early(struct device *dev);
 829 int acpi_subsys_suspend(struct device *dev);
 830 int acpi_subsys_freeze(struct device *dev);
 831 #else
 832 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 833 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 834 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 835 static inline void acpi_subsys_complete(struct device *dev) {}
 836 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
 837 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 838 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 839 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
 840 #endif
 841
 842 #ifdef CONFIG_ACPI
 843 __printf(3, 4)
 844 void acpi_handle_printk(const char *level, acpi_handle handle,
 845                         const char *fmt, ...);
 846 #else   /* !CONFIG_ACPI */
 847 static inline __printf(3, 4) void
 848 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
 849 #endif  /* !CONFIG_ACPI */
 850
 851 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
 852 __printf(3, 4)
 853 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
 854 #else
 855 #define __acpi_handle_debug(descriptor, handle, fmt, ...)               \
 856         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
 857 #endif
 858
 859 /*
 860  * acpi_handle_<level>: Print message with ACPI prefix and object path
 861  *
 862  * These interfaces acquire the global namespace mutex to obtain an object
 863  * path.  In interrupt context, it shows the object path as <n/a>.
 864  */
 865 #define acpi_handle_emerg(handle, fmt, ...)                             \
 866         acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
 867 #define acpi_handle_alert(handle, fmt, ...)                             \
 868         acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
 869 #define acpi_handle_crit(handle, fmt, ...)                              \
 870         acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
 871 #define acpi_handle_err(handle, fmt, ...)                               \
 872         acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
 873 #define acpi_handle_warn(handle, fmt, ...)                              \
 874         acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
 875 #define acpi_handle_notice(handle, fmt, ...)                            \
 876         acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
 877 #define acpi_handle_info(handle, fmt, ...)                              \
 878         acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
 879
 880 #if defined(DEBUG)
 881 #define acpi_handle_debug(handle, fmt, ...)                             \
 882         acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
 883 #else
 884 #if defined(CONFIG_DYNAMIC_DEBUG)
 885 #define acpi_handle_debug(handle, fmt, ...)                             \
 886 do {                                                                    \
 887         DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);                 \
 888         if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))          \
 889                 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt),   \
 890                                 ##__VA_ARGS__);                         \
 891 } while (0)
 892 #else
 893 #define acpi_handle_debug(handle, fmt, ...)                             \
 894 ({                                                                      \
 895         if (0)                                                          \
 896                 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
 897         0;                                                              \
 898 })
 899 #endif
 900 #endif
 901
 902 struct acpi_gpio_params {
 903         unsigned int crs_entry_index;
 904         unsigned int line_index;
 905         bool active_low;
 906 };
 907
 908 struct acpi_gpio_mapping {
 909         const char *name;
 910         const struct acpi_gpio_params *data;
 911         unsigned int size;
 912 };
 913
 914 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
 915 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 916                               const struct acpi_gpio_mapping *gpios);
 917
 918 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
 919 {
 920         if (adev)
 921                 adev->driver_gpios = NULL;
 922 }
 923
 924 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
 925 #else
 926 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
 927                               const struct acpi_gpio_mapping *gpios)
 928 {
 929         return -ENXIO;
 930 }
 931 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
 932
 933 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 934 {
 935         return -ENXIO;
 936 }
 937 #endif
 938
 939 /* Device properties */
 940
 941 #define MAX_ACPI_REFERENCE_ARGS 8
 942 struct acpi_reference_args {
 943         struct acpi_device *adev;
 944         size_t nargs;
 945         u64 args[MAX_ACPI_REFERENCE_ARGS];
 946 };
 947
 948 #ifdef CONFIG_ACPI
 949 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
 950                           acpi_object_type type, const union acpi_object **obj);
 951 int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 952                                 const char *name, size_t index, size_t num_args,
 953                                 struct acpi_reference_args *args);
 954
 955 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
 956                                 const char *name, size_t index,
 957                                 struct acpi_reference_args *args)
 958 {
 959         return __acpi_node_get_property_reference(fwnode, name, index,
 960                 MAX_ACPI_REFERENCE_ARGS, args);
 961 }
 962
 963 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
 964                        void **valptr);
 965 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
 966                               enum dev_prop_type proptype, void *val);
 967 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
 968                         enum dev_prop_type proptype, void *val, size_t nval);
 969 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
 970                        enum dev_prop_type proptype, void *val, size_t nval);
 971
 972 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
 973                                             struct fwnode_handle *subnode);
 974
 975 struct acpi_probe_entry;
 976 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
 977                                                  struct acpi_probe_entry *);
 978
 979 #define ACPI_TABLE_ID_LEN       5
 980
 981 /**
 982  * struct acpi_probe_entry - boot-time probing entry
 983  * @id:                 ACPI table name
 984  * @type:               Optional subtable type to match
 985  *                      (if @id contains subtables)
 986  * @subtable_valid:     Optional callback to check the validity of
 987  *                      the subtable
 988  * @probe_table:        Callback to the driver being probed when table
 989  *                      match is successful
 990  * @probe_subtbl:       Callback to the driver being probed when table and
 991  *                      subtable match (and optional callback is successful)
 992  * @driver_data:        Sideband data provided back to the driver
 993  */
 994 struct acpi_probe_entry {
 995         __u8 id[ACPI_TABLE_ID_LEN];
 996         __u8 type;
 997         acpi_probe_entry_validate_subtbl subtable_valid;
 998         union {
 999                 acpi_tbl_table_handler probe_table;
1000                 acpi_tbl_entry_handler probe_subtbl;
1001         };
1002         kernel_ulong_t driver_data;
1003 };
1004
1005 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn)      \
1006         static const struct acpi_probe_entry __acpi_probe_##name        \
1007                 __used __section(__##table##_acpi_probe_table)          \
1008                  = {                                                    \
1009                         .id = table_id,                                 \
1010                         .type = subtable,                               \
1011                         .subtable_valid = valid,                        \
1012                         .probe_table = (acpi_tbl_table_handler)fn,      \
1013                         .driver_data = data,                            \
1014                    }
1015
1016 #define ACPI_PROBE_TABLE(name)          __##name##_acpi_probe_table
1017 #define ACPI_PROBE_TABLE_END(name)      __##name##_acpi_probe_table_end
1018
1019 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1020
1021 #define acpi_probe_device_table(t)                                      \
1022         ({                                                              \
1023                 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t),     \
1024                                                ACPI_PROBE_TABLE_END(t); \
1025                 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t),         \
1026                                           (&ACPI_PROBE_TABLE_END(t) -   \
1027                                            &ACPI_PROBE_TABLE(t)));      \
1028         })
1029 #else
1030 static inline int acpi_dev_get_property(struct acpi_device *adev,
1031                                         const char *name, acpi_object_type type,
1032                                         const union acpi_object **obj)
1033 {
1034         return -ENXIO;
1035 }
1036
1037 static inline int
1038 __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1039                                 const char *name, size_t index, size_t num_args,
1040                                 struct acpi_reference_args *args)
1041 {
1042         return -ENXIO;
1043 }
1044
1045 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1046                                 const char *name, size_t index,
1047                                 struct acpi_reference_args *args)
1048 {
1049         return -ENXIO;
1050 }
1051
1052 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
1053                                      const char *propname,
1054                                      void **valptr)
1055 {
1056         return -ENXIO;
1057 }
1058
1059 static inline int acpi_dev_prop_get(struct acpi_device *adev,
1060                                     const char *propname,
1061                                     void **valptr)
1062 {
1063         return -ENXIO;
1064 }
1065
1066 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
1067                                             const char *propname,
1068                                             enum dev_prop_type proptype,
1069                                             void *val)
1070 {
1071         return -ENXIO;
1072 }
1073
1074 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
1075                                       const char *propname,
1076                                       enum dev_prop_type proptype,
1077                                       void *val, size_t nval)
1078 {
1079         return -ENXIO;
1080 }
1081
1082 static inline int acpi_dev_prop_read(struct acpi_device *adev,
1083                                      const char *propname,
1084                                      enum dev_prop_type proptype,
1085                                      void *val, size_t nval)
1086 {
1087         return -ENXIO;
1088 }
1089
1090 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
1091                                                 struct fwnode_handle *subnode)
1092 {
1093         return NULL;
1094 }
1095
1096 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1097         static const void * __acpi_table_##name[]                       \
1098                 __attribute__((unused))                                 \
1099                  = { (void *) table_id,                                 \
1100                      (void *) subtable,                                 \
1101                      (void *) valid,                                    \
1102                      (void *) fn,                                       \
1103                      (void *) data }
1104
1105 #define acpi_probe_device_table(t)      ({ int __r = 0; __r;})
1106 #endif
1107
1108 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1109 void acpi_table_upgrade(void);
1110 #else
1111 static inline void acpi_table_upgrade(void) { }
1112 #endif
1113
1114 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1115 extern bool acpi_has_watchdog(void);
1116 #else
1117 static inline bool acpi_has_watchdog(void) { return false; }
1118 #endif
1119
1120 #ifdef CONFIG_ACPI_SPCR_TABLE
1121 int parse_spcr(bool earlycon);
1122 #else
1123 static inline int parse_spcr(bool earlycon) { return 0; }
1124 #endif
1125
1126 #endif  /*_LINUX_ACPI_H*/