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