1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 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*/ 1001