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>
40 #include <linux/module.h>
41 #include <linux/mutex.h>
43 #include <acpi/acpi_bus.h>
44 #include <acpi/acpi_drivers.h>
45 #include <acpi/acpi_numa.h>
46 #include <acpi/acpi_io.h>
49 static inline acpi_handle
acpi_device_handle(struct acpi_device
*adev
)
51 return adev
? adev
->handle
: NULL
;
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))
60 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
61 * the PCI-defined class-code information
63 * @_cls : the class, subclass, prog-if triple for this device
64 * @_msk : the class mask for this device
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.
70 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
72 static inline bool has_acpi_companion(struct device
*dev
)
74 return is_acpi_device_node(dev
->fwnode
);
77 static inline void acpi_preset_companion(struct device
*dev
,
78 struct acpi_device
*parent
, u64 addr
)
80 ACPI_COMPANION_SET(dev
, acpi_find_child_device(parent
, addr
, NULL
));
83 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
85 return dev_name(&adev
->dev
);
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
,
97 extern enum acpi_irq_model_id acpi_irq_model
;
99 enum acpi_interrupt_id
{
100 ACPI_INTERRUPT_PMI
= 1,
106 #define ACPI_SPACE_MEM 0
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
119 typedef int (*acpi_tbl_table_handler
)(struct acpi_table_header
*table
);
121 typedef int (*acpi_tbl_entry_handler
)(struct acpi_subtable_header
*header
,
122 const unsigned long end
);
124 /* Debugger support */
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);
134 struct acpi_debugger
{
135 const struct acpi_debugger_ops
*ops
;
136 struct module
*owner
;
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);
151 static inline int acpi_debugger_init(void)
156 static inline int acpi_register_debugger(struct module
*owner
,
157 const struct acpi_debugger_ops
*ops
)
162 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops
*ops
)
166 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function
,
172 static inline int acpi_debugger_write_log(const char *msg
)
177 static inline int acpi_debugger_read_cmd(char *buffer
, u32 buffer_length
)
182 static inline int acpi_debugger_wait_command_ready(void)
187 static inline int acpi_debugger_notify_command_complete(void)
193 #define BAD_MADT_ENTRY(entry, end) ( \
194 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
195 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
197 struct acpi_subtable_proc
{
199 acpi_tbl_entry_handler handler
;
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);
211 int acpi_table_init (void);
212 int acpi_table_parse(char *id
, acpi_tbl_table_handler handler
);
213 int __init
acpi_parse_entries(char *id
, unsigned long table_size
,
214 acpi_tbl_entry_handler handler
,
215 struct acpi_table_header
*table_header
,
216 int entry_id
, unsigned int max_entries
);
217 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
219 acpi_tbl_entry_handler handler
,
220 unsigned int max_entries
);
221 int __init
acpi_table_parse_entries(char *id
, unsigned long table_size
,
223 acpi_tbl_entry_handler handler
,
224 unsigned int max_entries
);
225 int __init
acpi_table_parse_entries_array(char *id
, unsigned long table_size
,
226 struct acpi_subtable_proc
*proc
, int proc_num
,
227 unsigned int max_entries
);
228 int acpi_table_parse_madt(enum acpi_madt_type id
,
229 acpi_tbl_entry_handler handler
,
230 unsigned int max_entries
);
231 int acpi_parse_mcfg (struct acpi_table_header
*header
);
232 void acpi_table_print_madt_entry (struct acpi_subtable_header
*madt
);
234 /* the following numa functions are architecture-dependent */
235 void acpi_numa_slit_init (struct acpi_table_slit
*slit
);
237 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
238 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity
*pa
);
241 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity
*pa
) { }
244 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity
*pa
);
247 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
);
250 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity
*pa
) { }
253 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity
*ma
);
255 #ifndef PHYS_CPUID_INVALID
256 typedef u32 phys_cpuid_t
;
257 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
260 static inline bool invalid_logical_cpuid(u32 cpuid
)
262 return (int)cpuid
< 0;
265 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id
)
267 return phys_id
== PHYS_CPUID_INVALID
;
270 #ifdef CONFIG_ACPI_HOTPLUG_CPU
271 /* Arch dependent functions for cpu hotplug support */
272 int acpi_map_cpu(acpi_handle handle
, phys_cpuid_t physid
, int *pcpu
);
273 int acpi_unmap_cpu(int cpu
);
274 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
276 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
277 int acpi_get_ioapic_id(acpi_handle handle
, u32 gsi_base
, u64
*phys_addr
);
280 int acpi_register_ioapic(acpi_handle handle
, u64 phys_addr
, u32 gsi_base
);
281 int acpi_unregister_ioapic(acpi_handle handle
, u32 gsi_base
);
282 int acpi_ioapic_registered(acpi_handle handle
, u32 gsi_base
);
283 void acpi_irq_stats_init(void);
284 extern u32 acpi_irq_handled
;
285 extern u32 acpi_irq_not_handled
;
286 extern unsigned int acpi_sci_irq
;
287 extern bool acpi_no_s5
;
288 #define INVALID_ACPI_IRQ ((unsigned)-1)
289 static inline bool acpi_sci_irq_valid(void)
291 return acpi_sci_irq
!= INVALID_ACPI_IRQ
;
295 extern unsigned long acpi_realmode_flags
;
297 int acpi_register_gsi (struct device
*dev
, u32 gsi
, int triggering
, int polarity
);
298 int acpi_gsi_to_irq (u32 gsi
, unsigned int *irq
);
299 int acpi_isa_irq_to_gsi (unsigned isa_irq
, u32
*gsi
);
301 void acpi_set_irq_model(enum acpi_irq_model_id model
,
302 struct fwnode_handle
*fwnode
);
304 #ifdef CONFIG_X86_IO_APIC
305 extern int acpi_get_override_irq(u32 gsi
, int *trigger
, int *polarity
);
307 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
310 * This function undoes the effect of one call to acpi_register_gsi().
311 * If this matches the last registration, any IRQ resources for gsi
314 void acpi_unregister_gsi (u32 gsi
);
318 int acpi_pci_irq_enable (struct pci_dev
*dev
);
319 void acpi_penalize_isa_irq(int irq
, int active
);
320 bool acpi_isa_irq_available(int irq
);
321 void acpi_pci_irq_disable (struct pci_dev
*dev
);
323 extern int ec_read(u8 addr
, u8
*val
);
324 extern int ec_write(u8 addr
, u8 val
);
325 extern int ec_transaction(u8 command
,
326 const u8
*wdata
, unsigned wdata_len
,
327 u8
*rdata
, unsigned rdata_len
);
328 extern acpi_handle
ec_get_handle(void);
330 extern bool acpi_is_pnp_device(struct acpi_device
*);
332 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
334 typedef void (*wmi_notify_handler
) (u32 value
, void *context
);
336 extern acpi_status
wmi_evaluate_method(const char *guid
, u8 instance
,
338 const struct acpi_buffer
*in
,
339 struct acpi_buffer
*out
);
340 extern acpi_status
wmi_query_block(const char *guid
, u8 instance
,
341 struct acpi_buffer
*out
);
342 extern acpi_status
wmi_set_block(const char *guid
, u8 instance
,
343 const struct acpi_buffer
*in
);
344 extern acpi_status
wmi_install_notify_handler(const char *guid
,
345 wmi_notify_handler handler
, void *data
);
346 extern acpi_status
wmi_remove_notify_handler(const char *guid
);
347 extern acpi_status
wmi_get_event_data(u32 event
, struct acpi_buffer
*out
);
348 extern bool wmi_has_guid(const char *guid
);
350 #endif /* CONFIG_ACPI_WMI */
352 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
353 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
354 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
355 #define ACPI_VIDEO_BACKLIGHT 0x0008
356 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
357 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
358 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
359 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
360 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
361 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
362 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
363 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
365 extern char acpi_video_backlight_string
[];
366 extern long acpi_is_video_device(acpi_handle handle
);
367 extern int acpi_blacklisted(void);
368 extern void acpi_osi_setup(char *str
);
369 extern bool acpi_osi_is_win8(void);
371 #ifdef CONFIG_ACPI_NUMA
372 int acpi_map_pxm_to_online_node(int pxm
);
373 int acpi_get_node(acpi_handle handle
);
375 static inline int acpi_map_pxm_to_online_node(int pxm
)
379 static inline int acpi_get_node(acpi_handle handle
)
384 extern int acpi_paddr_to_node(u64 start_addr
, u64 size
);
386 extern int pnpacpi_disabled
;
388 #define PXM_INVAL (-1)
390 bool acpi_dev_resource_memory(struct acpi_resource
*ares
, struct resource
*res
);
391 bool acpi_dev_resource_io(struct acpi_resource
*ares
, struct resource
*res
);
392 bool acpi_dev_resource_address_space(struct acpi_resource
*ares
,
393 struct resource_win
*win
);
394 bool acpi_dev_resource_ext_address_space(struct acpi_resource
*ares
,
395 struct resource_win
*win
);
396 unsigned long acpi_dev_irq_flags(u8 triggering
, u8 polarity
, u8 shareable
);
397 unsigned int acpi_dev_get_irq_type(int triggering
, int polarity
);
398 bool acpi_dev_resource_interrupt(struct acpi_resource
*ares
, int index
,
399 struct resource
*res
);
401 void acpi_dev_free_resource_list(struct list_head
*list
);
402 int acpi_dev_get_resources(struct acpi_device
*adev
, struct list_head
*list
,
403 int (*preproc
)(struct acpi_resource
*, void *),
405 int acpi_dev_filter_resource_type(struct acpi_resource
*ares
,
406 unsigned long types
);
408 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource
*ares
,
411 return acpi_dev_filter_resource_type(ares
, (unsigned long)arg
);
414 int acpi_check_resource_conflict(const struct resource
*res
);
416 int acpi_check_region(resource_size_t start
, resource_size_t n
,
419 int acpi_resources_are_enforced(void);
421 #ifdef CONFIG_HIBERNATION
422 void __init
acpi_no_s4_hw_signature(void);
425 #ifdef CONFIG_PM_SLEEP
426 void __init
acpi_old_suspend_ordering(void);
427 void __init
acpi_nvs_nosave(void);
428 void __init
acpi_nvs_nosave_s3(void);
429 #endif /* CONFIG_PM_SLEEP */
431 struct acpi_osc_context
{
432 char *uuid_str
; /* UUID string */
434 struct acpi_buffer cap
; /* list of DWORD capabilities */
435 struct acpi_buffer ret
; /* free by caller if success */
438 acpi_status
acpi_str_to_uuid(char *str
, u8
*uuid
);
439 acpi_status
acpi_run_osc(acpi_handle handle
, struct acpi_osc_context
*context
);
441 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
442 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
443 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
444 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
446 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
447 #define OSC_QUERY_ENABLE 0x00000001 /* input */
448 #define OSC_REQUEST_ERROR 0x00000002 /* return */
449 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
450 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
451 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
453 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
454 #define OSC_SB_PAD_SUPPORT 0x00000001
455 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
456 #define OSC_SB_PR3_SUPPORT 0x00000004
457 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
458 #define OSC_SB_APEI_SUPPORT 0x00000010
459 #define OSC_SB_CPC_SUPPORT 0x00000020
460 #define OSC_SB_CPCV2_SUPPORT 0x00000040
461 #define OSC_SB_PCLPI_SUPPORT 0x00000080
462 #define OSC_SB_OSLPI_SUPPORT 0x00000100
464 extern bool osc_sb_apei_support_acked
;
465 extern bool osc_pc_lpi_support_confirmed
;
467 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
468 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
469 #define OSC_PCI_ASPM_SUPPORT 0x00000002
470 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
471 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
472 #define OSC_PCI_MSI_SUPPORT 0x00000010
473 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
475 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
476 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
477 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
478 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
479 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
480 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
481 #define OSC_PCI_CONTROL_MASKS 0x0000001f
483 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
484 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
485 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
486 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
487 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
488 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
489 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
490 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
491 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
492 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
494 extern acpi_status
acpi_pci_osc_control_set(acpi_handle handle
,
497 /* Enable _OST when all relevant hotplug operations are enabled */
498 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
499 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
500 defined(CONFIG_ACPI_CONTAINER)
501 #define ACPI_HOTPLUG_OST
504 /* _OST Source Event Code (OSPM Action) */
505 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
506 #define ACPI_OST_EC_OSPM_EJECT 0x103
507 #define ACPI_OST_EC_OSPM_INSERTION 0x200
509 /* _OST General Processing Status Code */
510 #define ACPI_OST_SC_SUCCESS 0x0
511 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
512 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
514 /* _OST OS Shutdown Processing (0x100) Status Code */
515 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
516 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
517 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
518 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
520 /* _OST Ejection Request (0x3, 0x103) Status Code */
521 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
522 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
523 #define ACPI_OST_SC_DEVICE_BUSY 0x82
524 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
525 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
527 /* _OST Insertion Request (0x200) Status Code */
528 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
529 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
530 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
532 extern void acpi_early_init(void);
533 extern void acpi_subsystem_init(void);
535 extern int acpi_nvs_register(__u64 start
, __u64 size
);
537 extern int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
540 const struct acpi_device_id
*acpi_match_device(const struct acpi_device_id
*ids
,
541 const struct device
*dev
);
543 extern bool acpi_driver_match_device(struct device
*dev
,
544 const struct device_driver
*drv
);
545 int acpi_device_uevent_modalias(struct device
*, struct kobj_uevent_env
*);
546 int acpi_device_modalias(struct device
*, char *, int);
547 void acpi_walk_dep_device_list(acpi_handle handle
);
549 struct platform_device
*acpi_create_platform_device(struct acpi_device
*);
550 #define ACPI_PTR(_ptr) (_ptr)
552 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
554 adev
->flags
.visited
= true;
557 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
559 adev
->flags
.visited
= false;
562 enum acpi_reconfig_event
{
563 ACPI_RECONFIG_DEVICE_ADD
= 0,
564 ACPI_RECONFIG_DEVICE_REMOVE
,
567 int acpi_reconfig_notifier_register(struct notifier_block
*nb
);
568 int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
);
570 #else /* !CONFIG_ACPI */
572 #define acpi_disabled 1
574 #define ACPI_COMPANION(dev) (NULL)
575 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
576 #define ACPI_HANDLE(dev) (NULL)
577 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
579 struct fwnode_handle
;
581 static inline bool acpi_dev_found(const char *hid
)
586 static inline bool is_acpi_node(struct fwnode_handle
*fwnode
)
591 static inline bool is_acpi_device_node(struct fwnode_handle
*fwnode
)
596 static inline struct acpi_device
*to_acpi_device_node(struct fwnode_handle
*fwnode
)
601 static inline bool is_acpi_data_node(struct fwnode_handle
*fwnode
)
606 static inline struct acpi_data_node
*to_acpi_data_node(struct fwnode_handle
*fwnode
)
611 static inline bool acpi_data_node_match(struct fwnode_handle
*fwnode
,
617 static inline struct fwnode_handle
*acpi_fwnode_handle(struct acpi_device
*adev
)
622 static inline bool has_acpi_companion(struct device
*dev
)
627 static inline void acpi_preset_companion(struct device
*dev
,
628 struct acpi_device
*parent
, u64 addr
)
632 static inline const char *acpi_dev_name(struct acpi_device
*adev
)
637 static inline void acpi_early_init(void) { }
638 static inline void acpi_subsystem_init(void) { }
640 static inline int early_acpi_boot_init(void)
644 static inline int acpi_boot_init(void)
649 static inline void acpi_boot_table_init(void)
654 static inline int acpi_mps_check(void)
659 static inline int acpi_check_resource_conflict(struct resource
*res
)
664 static inline int acpi_check_region(resource_size_t start
, resource_size_t n
,
670 struct acpi_table_header
;
671 static inline int acpi_table_parse(char *id
,
672 int (*handler
)(struct acpi_table_header
*))
677 static inline int acpi_nvs_register(__u64 start
, __u64 size
)
682 static inline int acpi_nvs_for_each_region(int (*func
)(__u64
, __u64
, void *),
688 struct acpi_device_id
;
690 static inline const struct acpi_device_id
*acpi_match_device(
691 const struct acpi_device_id
*ids
, const struct device
*dev
)
696 static inline bool acpi_driver_match_device(struct device
*dev
,
697 const struct device_driver
*drv
)
702 static inline union acpi_object
*acpi_evaluate_dsm(acpi_handle handle
,
705 union acpi_object
*argv4
)
710 static inline int acpi_device_uevent_modalias(struct device
*dev
,
711 struct kobj_uevent_env
*env
)
716 static inline int acpi_device_modalias(struct device
*dev
,
722 static inline bool acpi_dma_supported(struct acpi_device
*adev
)
727 static inline enum dev_dma_attr
acpi_get_dma_attr(struct acpi_device
*adev
)
729 return DEV_DMA_NOT_SUPPORTED
;
732 #define ACPI_PTR(_ptr) (NULL)
734 static inline void acpi_device_set_enumerated(struct acpi_device
*adev
)
738 static inline void acpi_device_clear_enumerated(struct acpi_device
*adev
)
742 static inline int acpi_reconfig_notifier_register(struct notifier_block
*nb
)
747 static inline int acpi_reconfig_notifier_unregister(struct notifier_block
*nb
)
752 #endif /* !CONFIG_ACPI */
755 void acpi_os_set_prepare_sleep(int (*func
)(u8 sleep_state
,
756 u32 pm1a_ctrl
, u32 pm1b_ctrl
));
758 acpi_status
acpi_os_prepare_sleep(u8 sleep_state
,
759 u32 pm1a_control
, u32 pm1b_control
);
761 void acpi_os_set_prepare_extended_sleep(int (*func
)(u8 sleep_state
,
762 u32 val_a
, u32 val_b
));
764 acpi_status
acpi_os_prepare_extended_sleep(u8 sleep_state
,
765 u32 val_a
, u32 val_b
);
768 void arch_reserve_mem_area(acpi_physical_address addr
, size_t size
);
770 static inline void arch_reserve_mem_area(acpi_physical_address addr
,
774 #endif /* CONFIG_X86 */
776 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
779 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
780 int acpi_dev_runtime_suspend(struct device
*dev
);
781 int acpi_dev_runtime_resume(struct device
*dev
);
782 int acpi_subsys_runtime_suspend(struct device
*dev
);
783 int acpi_subsys_runtime_resume(struct device
*dev
);
784 struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
);
785 int acpi_dev_pm_attach(struct device
*dev
, bool power_on
);
787 static inline int acpi_dev_runtime_suspend(struct device
*dev
) { return 0; }
788 static inline int acpi_dev_runtime_resume(struct device
*dev
) { return 0; }
789 static inline int acpi_subsys_runtime_suspend(struct device
*dev
) { return 0; }
790 static inline int acpi_subsys_runtime_resume(struct device
*dev
) { return 0; }
791 static inline struct acpi_device
*acpi_dev_pm_get_node(struct device
*dev
)
795 static inline int acpi_dev_pm_attach(struct device
*dev
, bool power_on
)
801 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
802 int acpi_dev_suspend_late(struct device
*dev
);
803 int acpi_dev_resume_early(struct device
*dev
);
804 int acpi_subsys_prepare(struct device
*dev
);
805 void acpi_subsys_complete(struct device
*dev
);
806 int acpi_subsys_suspend_late(struct device
*dev
);
807 int acpi_subsys_resume_early(struct device
*dev
);
808 int acpi_subsys_suspend(struct device
*dev
);
809 int acpi_subsys_freeze(struct device
*dev
);
811 static inline int acpi_dev_suspend_late(struct device
*dev
) { return 0; }
812 static inline int acpi_dev_resume_early(struct device
*dev
) { return 0; }
813 static inline int acpi_subsys_prepare(struct device
*dev
) { return 0; }
814 static inline void acpi_subsys_complete(struct device
*dev
) {}
815 static inline int acpi_subsys_suspend_late(struct device
*dev
) { return 0; }
816 static inline int acpi_subsys_resume_early(struct device
*dev
) { return 0; }
817 static inline int acpi_subsys_suspend(struct device
*dev
) { return 0; }
818 static inline int acpi_subsys_freeze(struct device
*dev
) { return 0; }
823 void acpi_handle_printk(const char *level
, acpi_handle handle
,
824 const char *fmt
, ...);
825 #else /* !CONFIG_ACPI */
826 static inline __printf(3, 4) void
827 acpi_handle_printk(const char *level
, void *handle
, const char *fmt
, ...) {}
828 #endif /* !CONFIG_ACPI */
830 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
832 void __acpi_handle_debug(struct _ddebug
*descriptor
, acpi_handle handle
, const char *fmt
, ...);
834 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
835 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
839 * acpi_handle_<level>: Print message with ACPI prefix and object path
841 * These interfaces acquire the global namespace mutex to obtain an object
842 * path. In interrupt context, it shows the object path as <n/a>.
844 #define acpi_handle_emerg(handle, fmt, ...) \
845 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
846 #define acpi_handle_alert(handle, fmt, ...) \
847 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
848 #define acpi_handle_crit(handle, fmt, ...) \
849 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
850 #define acpi_handle_err(handle, fmt, ...) \
851 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
852 #define acpi_handle_warn(handle, fmt, ...) \
853 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
854 #define acpi_handle_notice(handle, fmt, ...) \
855 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
856 #define acpi_handle_info(handle, fmt, ...) \
857 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
860 #define acpi_handle_debug(handle, fmt, ...) \
861 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
863 #if defined(CONFIG_DYNAMIC_DEBUG)
864 #define acpi_handle_debug(handle, fmt, ...) \
866 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
867 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
868 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
872 #define acpi_handle_debug(handle, fmt, ...) \
875 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
881 struct acpi_gpio_params
{
882 unsigned int crs_entry_index
;
883 unsigned int line_index
;
887 struct acpi_gpio_mapping
{
889 const struct acpi_gpio_params
*data
;
893 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
894 int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
895 const struct acpi_gpio_mapping
*gpios
);
897 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
)
900 adev
->driver_gpios
= NULL
;
903 int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
);
905 static inline int acpi_dev_add_driver_gpios(struct acpi_device
*adev
,
906 const struct acpi_gpio_mapping
*gpios
)
910 static inline void acpi_dev_remove_driver_gpios(struct acpi_device
*adev
) {}
912 static inline int acpi_dev_gpio_irq_get(struct acpi_device
*adev
, int index
)
918 /* Device properties */
920 #define MAX_ACPI_REFERENCE_ARGS 8
921 struct acpi_reference_args
{
922 struct acpi_device
*adev
;
924 u64 args
[MAX_ACPI_REFERENCE_ARGS
];
928 int acpi_dev_get_property(struct acpi_device
*adev
, const char *name
,
929 acpi_object_type type
, const union acpi_object
**obj
);
930 int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
931 const char *name
, size_t index
,
932 struct acpi_reference_args
*args
);
934 int acpi_node_prop_get(struct fwnode_handle
*fwnode
, const char *propname
,
936 int acpi_dev_prop_read_single(struct acpi_device
*adev
, const char *propname
,
937 enum dev_prop_type proptype
, void *val
);
938 int acpi_node_prop_read(struct fwnode_handle
*fwnode
, const char *propname
,
939 enum dev_prop_type proptype
, void *val
, size_t nval
);
940 int acpi_dev_prop_read(struct acpi_device
*adev
, const char *propname
,
941 enum dev_prop_type proptype
, void *val
, size_t nval
);
943 struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
944 struct fwnode_handle
*subnode
);
946 struct acpi_probe_entry
;
947 typedef bool (*acpi_probe_entry_validate_subtbl
)(struct acpi_subtable_header
*,
948 struct acpi_probe_entry
*);
950 #define ACPI_TABLE_ID_LEN 5
953 * struct acpi_probe_entry - boot-time probing entry
954 * @id: ACPI table name
955 * @type: Optional subtable type to match
956 * (if @id contains subtables)
957 * @subtable_valid: Optional callback to check the validity of
959 * @probe_table: Callback to the driver being probed when table
960 * match is successful
961 * @probe_subtbl: Callback to the driver being probed when table and
962 * subtable match (and optional callback is successful)
963 * @driver_data: Sideband data provided back to the driver
965 struct acpi_probe_entry
{
966 __u8 id
[ACPI_TABLE_ID_LEN
];
968 acpi_probe_entry_validate_subtbl subtable_valid
;
970 acpi_tbl_table_handler probe_table
;
971 acpi_tbl_entry_handler probe_subtbl
;
973 kernel_ulong_t driver_data
;
976 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
977 static const struct acpi_probe_entry __acpi_probe_##name \
978 __used __section(__##table##_acpi_probe_table) \
982 .subtable_valid = valid, \
983 .probe_table = (acpi_tbl_table_handler)fn, \
984 .driver_data = data, \
987 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
988 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
990 int __acpi_probe_device_table(struct acpi_probe_entry
*start
, int nr
);
992 #define acpi_probe_device_table(t) \
994 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
995 ACPI_PROBE_TABLE_END(t); \
996 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
997 (&ACPI_PROBE_TABLE_END(t) - \
998 &ACPI_PROBE_TABLE(t))); \
1001 static inline int acpi_dev_get_property(struct acpi_device
*adev
,
1002 const char *name
, acpi_object_type type
,
1003 const union acpi_object
**obj
)
1008 static inline int acpi_node_get_property_reference(struct fwnode_handle
*fwnode
,
1009 const char *name
, size_t index
,
1010 struct acpi_reference_args
*args
)
1015 static inline int acpi_node_prop_get(struct fwnode_handle
*fwnode
,
1016 const char *propname
,
1022 static inline int acpi_dev_prop_get(struct acpi_device
*adev
,
1023 const char *propname
,
1029 static inline int acpi_dev_prop_read_single(struct acpi_device
*adev
,
1030 const char *propname
,
1031 enum dev_prop_type proptype
,
1037 static inline int acpi_node_prop_read(struct fwnode_handle
*fwnode
,
1038 const char *propname
,
1039 enum dev_prop_type proptype
,
1040 void *val
, size_t nval
)
1045 static inline int acpi_dev_prop_read(struct acpi_device
*adev
,
1046 const char *propname
,
1047 enum dev_prop_type proptype
,
1048 void *val
, size_t nval
)
1053 static inline struct fwnode_handle
*acpi_get_next_subnode(struct device
*dev
,
1054 struct fwnode_handle
*subnode
)
1059 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1060 static const void * __acpi_table_##name[] \
1061 __attribute__((unused)) \
1062 = { (void *) table_id, \
1063 (void *) subtable, \
1068 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1071 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1072 void acpi_table_upgrade(void);
1074 static inline void acpi_table_upgrade(void) { }
1077 #endif /*_LINUX_ACPI_H*/