2 * acpi.h - ACPI Interface
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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>
33 #include <acpi/acpi.h>
37 #include <linux/list.h>
38 #include <linux/mod_devicetable.h>
39 #include <linux/dynamic_debug.h>
41 #include <acpi/acpi_bus.h>
42 #include <acpi/acpi_drivers.h>
43 #include <acpi/acpi_numa.h>
44 #include <acpi/acpi_io.h>
47 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
49 return adev ? adev->handle : NULL;
52 #define ACPI_COMPANION(dev) to_acpi_device_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))
58 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
59 * the PCI-defined class-code information
61 * @_cls : the class, subclass, prog-if triple for this device
62 * @_msk : the class mask for this device
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.
68 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
70 static inline bool has_acpi_companion(struct device *dev)
72 return is_acpi_device_node(dev->fwnode);
75 static inline void acpi_preset_companion(struct device *dev,
76 struct acpi_device *parent, u64 addr)
78 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, false));
81 static inline const char *acpi_dev_name(struct acpi_device *adev)
83 return dev_name(&adev->dev);
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,
95 extern enum acpi_irq_model_id acpi_irq_model;
97 enum acpi_interrupt_id {
98 ACPI_INTERRUPT_PMI = 1,
104 #define ACPI_SPACE_MEM 0
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
117 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
119 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
120 const unsigned long end);
122 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
123 void acpi_initrd_override(void *data, size_t size);
125 static inline void acpi_initrd_override(void *data, size_t size)
130 #define BAD_MADT_ENTRY(entry, end) ( \
131 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
132 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
134 struct acpi_subtable_proc {
136 acpi_tbl_entry_handler handler;
140 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
141 void __acpi_unmap_table(char *map, unsigned long size);
142 int early_acpi_boot_init(void);
143 int acpi_boot_init (void);
144 void acpi_boot_table_init (void);
145 int acpi_mps_check (void);
146 int acpi_numa_init (void);
148 int acpi_table_init (void);
149 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
150 int __init acpi_parse_entries(char *id, unsigned long table_size,
151 acpi_tbl_entry_handler handler,
152 struct acpi_table_header *table_header,
153 int entry_id, unsigned int max_entries);
154 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
156 acpi_tbl_entry_handler handler,
157 unsigned int max_entries);
158 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
160 acpi_tbl_entry_handler handler,
161 unsigned int max_entries);
162 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
163 struct acpi_subtable_proc *proc, int proc_num,
164 unsigned int max_entries);
165 int acpi_table_parse_madt(enum acpi_madt_type id,
166 acpi_tbl_entry_handler handler,
167 unsigned int max_entries);
168 int acpi_parse_mcfg (struct acpi_table_header *header);
169 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
171 /* the following four functions are architecture-dependent */
172 void acpi_numa_slit_init (struct acpi_table_slit *slit);
173 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
174 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
175 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
176 void acpi_numa_arch_fixup(void);
178 #ifndef PHYS_CPUID_INVALID
179 typedef u32 phys_cpuid_t;
180 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
183 static inline bool invalid_logical_cpuid(u32 cpuid)
185 return (int)cpuid < 0;
188 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
190 return phys_id == PHYS_CPUID_INVALID;
193 #ifdef CONFIG_ACPI_HOTPLUG_CPU
194 /* Arch dependent functions for cpu hotplug support */
195 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
196 int acpi_unmap_cpu(int cpu);
197 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
199 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
200 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
203 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
204 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
205 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
206 void acpi_irq_stats_init(void);
207 extern u32 acpi_irq_handled;
208 extern u32 acpi_irq_not_handled;
209 extern unsigned int acpi_sci_irq;
210 #define INVALID_ACPI_IRQ ((unsigned)-1)
211 static inline bool acpi_sci_irq_valid(void)
213 return acpi_sci_irq != INVALID_ACPI_IRQ;
217 extern unsigned long acpi_realmode_flags;
219 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
220 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
221 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
223 void acpi_set_irq_model(enum acpi_irq_model_id model,
224 struct fwnode_handle *fwnode);
226 #ifdef CONFIG_X86_IO_APIC
227 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
229 static inline int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
235 * This function undoes the effect of one call to acpi_register_gsi().
236 * If this matches the last registration, any IRQ resources for gsi
239 void acpi_unregister_gsi (u32 gsi);
243 int acpi_pci_irq_enable (struct pci_dev *dev);
244 void acpi_penalize_isa_irq(int irq, int active);
245 bool acpi_isa_irq_available(int irq);
246 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
247 void acpi_pci_irq_disable (struct pci_dev *dev);
249 extern int ec_read(u8 addr, u8 *val);
250 extern int ec_write(u8 addr, u8 val);
251 extern int ec_transaction(u8 command,
252 const u8 *wdata, unsigned wdata_len,
253 u8 *rdata, unsigned rdata_len);
254 extern acpi_handle ec_get_handle(void);
256 extern bool acpi_is_pnp_device(struct acpi_device *);
258 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
260 typedef void (*wmi_notify_handler) (u32 value, void *context);
262 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
264 const struct acpi_buffer *in,
265 struct acpi_buffer *out);
266 extern acpi_status wmi_query_block(const char *guid, u8 instance,
267 struct acpi_buffer *out);
268 extern acpi_status wmi_set_block(const char *guid, u8 instance,
269 const struct acpi_buffer *in);
270 extern acpi_status wmi_install_notify_handler(const char *guid,
271 wmi_notify_handler handler, void *data);
272 extern acpi_status wmi_remove_notify_handler(const char *guid);
273 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
274 extern bool wmi_has_guid(const char *guid);
276 #endif /* CONFIG_ACPI_WMI */
278 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
279 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
280 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
281 #define ACPI_VIDEO_BACKLIGHT 0x0008
282 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
283 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
284 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
285 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
286 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
287 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
288 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
289 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
291 extern char acpi_video_backlight_string[];
292 extern long acpi_is_video_device(acpi_handle handle);
293 extern int acpi_blacklisted(void);
294 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
295 extern void acpi_osi_setup(char *str);
296 extern bool acpi_osi_is_win8(void);
298 #ifdef CONFIG_ACPI_NUMA
299 int acpi_map_pxm_to_online_node(int pxm);
300 int acpi_get_node(acpi_handle handle);
302 static inline int acpi_map_pxm_to_online_node(int pxm)
306 static inline int acpi_get_node(acpi_handle handle)
311 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
313 extern int pnpacpi_disabled;
315 #define PXM_INVAL (-1)
317 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
318 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
319 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
320 struct resource_win *win);
321 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
322 struct resource_win *win);
323 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
324 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
325 struct resource *res);
327 void acpi_dev_free_resource_list(struct list_head *list);
328 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
329 int (*preproc)(struct acpi_resource *, void *),
331 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
332 unsigned long types);
334 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
337 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
340 int acpi_check_resource_conflict(const struct resource *res);
342 int acpi_check_region(resource_size_t start, resource_size_t n,
345 int acpi_resources_are_enforced(void);
347 #ifdef CONFIG_HIBERNATION
348 void __init acpi_no_s4_hw_signature(void);
351 #ifdef CONFIG_PM_SLEEP
352 void __init acpi_old_suspend_ordering(void);
353 void __init acpi_nvs_nosave(void);
354 void __init acpi_nvs_nosave_s3(void);
355 #endif /* CONFIG_PM_SLEEP */
357 struct acpi_osc_context {
358 char *uuid_str; /* UUID string */
360 struct acpi_buffer cap; /* list of DWORD capabilities */
361 struct acpi_buffer ret; /* free by caller if success */
364 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
365 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
367 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
368 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
369 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
370 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
372 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
373 #define OSC_QUERY_ENABLE 0x00000001 /* input */
374 #define OSC_REQUEST_ERROR 0x00000002 /* return */
375 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
376 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
377 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
379 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
380 #define OSC_SB_PAD_SUPPORT 0x00000001
381 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
382 #define OSC_SB_PR3_SUPPORT 0x00000004
383 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
384 #define OSC_SB_APEI_SUPPORT 0x00000010
385 #define OSC_SB_CPC_SUPPORT 0x00000020
387 extern bool osc_sb_apei_support_acked;
389 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
390 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
391 #define OSC_PCI_ASPM_SUPPORT 0x00000002
392 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
393 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
394 #define OSC_PCI_MSI_SUPPORT 0x00000010
395 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
397 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
398 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
399 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
400 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
401 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
402 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
403 #define OSC_PCI_CONTROL_MASKS 0x0000001f
405 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
406 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
407 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
408 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
409 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
410 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
411 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
412 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
413 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
414 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
416 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
419 /* Enable _OST when all relevant hotplug operations are enabled */
420 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
421 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
422 defined(CONFIG_ACPI_CONTAINER)
423 #define ACPI_HOTPLUG_OST
426 /* _OST Source Event Code (OSPM Action) */
427 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
428 #define ACPI_OST_EC_OSPM_EJECT 0x103
429 #define ACPI_OST_EC_OSPM_INSERTION 0x200
431 /* _OST General Processing Status Code */
432 #define ACPI_OST_SC_SUCCESS 0x0
433 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
434 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
436 /* _OST OS Shutdown Processing (0x100) Status Code */
437 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
438 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
439 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
440 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
442 /* _OST Ejection Request (0x3, 0x103) Status Code */
443 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
444 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
445 #define ACPI_OST_SC_DEVICE_BUSY 0x82
446 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
447 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
449 /* _OST Insertion Request (0x200) Status Code */
450 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
451 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
452 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
454 extern void acpi_early_init(void);
455 extern void acpi_subsystem_init(void);
457 extern int acpi_nvs_register(__u64 start, __u64 size);
459 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
462 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
463 const struct device *dev);
465 extern bool acpi_driver_match_device(struct device *dev,
466 const struct device_driver *drv);
467 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
468 int acpi_device_modalias(struct device *, char *, int);
469 void acpi_walk_dep_device_list(acpi_handle handle);
471 struct platform_device *acpi_create_platform_device(struct acpi_device *);
472 #define ACPI_PTR(_ptr) (_ptr)
474 #else /* !CONFIG_ACPI */
476 #define acpi_disabled 1
478 #define ACPI_COMPANION(dev) (NULL)
479 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
480 #define ACPI_HANDLE(dev) (NULL)
481 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
483 struct fwnode_handle;
485 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
490 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
495 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
500 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
505 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
510 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
515 static inline bool has_acpi_companion(struct device *dev)
520 static inline void acpi_preset_companion(struct device *dev,
521 struct acpi_device *parent, u64 addr)
525 static inline const char *acpi_dev_name(struct acpi_device *adev)
530 static inline void acpi_early_init(void) { }
531 static inline void acpi_subsystem_init(void) { }
533 static inline int early_acpi_boot_init(void)
537 static inline int acpi_boot_init(void)
542 static inline void acpi_boot_table_init(void)
547 static inline int acpi_mps_check(void)
552 static inline int acpi_check_resource_conflict(struct resource *res)
557 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
563 struct acpi_table_header;
564 static inline int acpi_table_parse(char *id,
565 int (*handler)(struct acpi_table_header *))
570 static inline int acpi_nvs_register(__u64 start, __u64 size)
575 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
581 struct acpi_device_id;
583 static inline const struct acpi_device_id *acpi_match_device(
584 const struct acpi_device_id *ids, const struct device *dev)
589 static inline bool acpi_driver_match_device(struct device *dev,
590 const struct device_driver *drv)
595 static inline int acpi_device_uevent_modalias(struct device *dev,
596 struct kobj_uevent_env *env)
601 static inline int acpi_device_modalias(struct device *dev,
607 static inline struct platform_device *
608 acpi_create_platform_device(struct acpi_device *adev,
609 struct property_entry *properties)
614 static inline bool acpi_dma_supported(struct acpi_device *adev)
619 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
621 return DEV_DMA_NOT_SUPPORTED;
624 #define ACPI_PTR(_ptr) (NULL)
626 #endif /* !CONFIG_ACPI */
629 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
630 u32 pm1a_ctrl, u32 pm1b_ctrl));
632 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
633 u32 pm1a_control, u32 pm1b_control);
635 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
636 u32 val_a, u32 val_b));
638 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
639 u32 val_a, u32 val_b);
642 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
644 static inline void arch_reserve_mem_area(acpi_physical_address addr,
648 #endif /* CONFIG_X86 */
650 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
653 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
654 int acpi_dev_runtime_suspend(struct device *dev);
655 int acpi_dev_runtime_resume(struct device *dev);
656 int acpi_subsys_runtime_suspend(struct device *dev);
657 int acpi_subsys_runtime_resume(struct device *dev);
658 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
659 int acpi_dev_pm_attach(struct device *dev, bool power_on);
661 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
662 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
663 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
664 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
665 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
669 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
675 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
676 int acpi_dev_suspend_late(struct device *dev);
677 int acpi_dev_resume_early(struct device *dev);
678 int acpi_subsys_prepare(struct device *dev);
679 void acpi_subsys_complete(struct device *dev);
680 int acpi_subsys_suspend_late(struct device *dev);
681 int acpi_subsys_resume_early(struct device *dev);
682 int acpi_subsys_suspend(struct device *dev);
683 int acpi_subsys_freeze(struct device *dev);
685 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
686 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
687 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
688 static inline void acpi_subsys_complete(struct device *dev) {}
689 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
690 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
691 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
692 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
697 void acpi_handle_printk(const char *level, acpi_handle handle,
698 const char *fmt, ...);
699 #else /* !CONFIG_ACPI */
700 static inline __printf(3, 4) void
701 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
702 #endif /* !CONFIG_ACPI */
704 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
706 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
708 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
709 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
713 * acpi_handle_<level>: Print message with ACPI prefix and object path
715 * These interfaces acquire the global namespace mutex to obtain an object
716 * path. In interrupt context, it shows the object path as <n/a>.
718 #define acpi_handle_emerg(handle, fmt, ...) \
719 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
720 #define acpi_handle_alert(handle, fmt, ...) \
721 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
722 #define acpi_handle_crit(handle, fmt, ...) \
723 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
724 #define acpi_handle_err(handle, fmt, ...) \
725 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
726 #define acpi_handle_warn(handle, fmt, ...) \
727 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
728 #define acpi_handle_notice(handle, fmt, ...) \
729 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
730 #define acpi_handle_info(handle, fmt, ...) \
731 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
734 #define acpi_handle_debug(handle, fmt, ...) \
735 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
737 #if defined(CONFIG_DYNAMIC_DEBUG)
738 #define acpi_handle_debug(handle, fmt, ...) \
740 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
741 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
742 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
746 #define acpi_handle_debug(handle, fmt, ...) \
749 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
755 struct acpi_gpio_params {
756 unsigned int crs_entry_index;
757 unsigned int line_index;
761 struct acpi_gpio_mapping {
763 const struct acpi_gpio_params *data;
767 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
768 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
769 const struct acpi_gpio_mapping *gpios);
771 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
774 adev->driver_gpios = NULL;
777 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
779 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
780 const struct acpi_gpio_mapping *gpios)
784 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
786 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
792 /* Device properties */
794 #define MAX_ACPI_REFERENCE_ARGS 8
795 struct acpi_reference_args {
796 struct acpi_device *adev;
798 u64 args[MAX_ACPI_REFERENCE_ARGS];
802 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
803 acpi_object_type type, const union acpi_object **obj);
804 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
805 const char *name, size_t index,
806 struct acpi_reference_args *args);
808 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
810 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
811 enum dev_prop_type proptype, void *val);
812 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
813 enum dev_prop_type proptype, void *val, size_t nval);
814 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
815 enum dev_prop_type proptype, void *val, size_t nval);
817 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
818 struct fwnode_handle *subnode);
820 struct acpi_probe_entry;
821 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
822 struct acpi_probe_entry *);
824 #define ACPI_TABLE_ID_LEN 5
827 * struct acpi_probe_entry - boot-time probing entry
828 * @id: ACPI table name
829 * @type: Optional subtable type to match
830 * (if @id contains subtables)
831 * @subtable_valid: Optional callback to check the validity of
833 * @probe_table: Callback to the driver being probed when table
834 * match is successful
835 * @probe_subtbl: Callback to the driver being probed when table and
836 * subtable match (and optional callback is successful)
837 * @driver_data: Sideband data provided back to the driver
839 struct acpi_probe_entry {
840 __u8 id[ACPI_TABLE_ID_LEN];
842 acpi_probe_entry_validate_subtbl subtable_valid;
844 acpi_tbl_table_handler probe_table;
845 acpi_tbl_entry_handler probe_subtbl;
847 kernel_ulong_t driver_data;
850 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
851 static const struct acpi_probe_entry __acpi_probe_##name \
852 __used __section(__##table##_acpi_probe_table) \
856 .subtable_valid = valid, \
857 .probe_table = (acpi_tbl_table_handler)fn, \
858 .driver_data = data, \
861 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
862 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
864 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
866 #define acpi_probe_device_table(t) \
868 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
869 ACPI_PROBE_TABLE_END(t); \
870 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
871 (&ACPI_PROBE_TABLE_END(t) - \
872 &ACPI_PROBE_TABLE(t))); \
875 static inline int acpi_dev_get_property(struct acpi_device *adev,
876 const char *name, acpi_object_type type,
877 const union acpi_object **obj)
882 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
883 const char *name, size_t index,
884 struct acpi_reference_args *args)
889 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
890 const char *propname,
896 static inline int acpi_dev_prop_get(struct acpi_device *adev,
897 const char *propname,
903 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
904 const char *propname,
905 enum dev_prop_type proptype,
911 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
912 const char *propname,
913 enum dev_prop_type proptype,
914 void *val, size_t nval)
919 static inline int acpi_dev_prop_read(struct acpi_device *adev,
920 const char *propname,
921 enum dev_prop_type proptype,
922 void *val, size_t nval)
927 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
928 struct fwnode_handle *subnode)
933 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
934 static const void * __acpi_table_##name[] \
935 __attribute__((unused)) \
936 = { (void *) table_id, \
942 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
945 #endif /*_LINUX_ACPI_H*/