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