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[deliverable/linux.git] / include / linux / acpi.h
1 /*
2 * acpi.h - ACPI Interface
3 *
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
89
90 enum acpi_irq_model_id {
91 ACPI_IRQ_MODEL_PIC = 0,
92 ACPI_IRQ_MODEL_IOAPIC,
93 ACPI_IRQ_MODEL_IOSAPIC,
94 ACPI_IRQ_MODEL_PLATFORM,
95 ACPI_IRQ_MODEL_GIC,
96 ACPI_IRQ_MODEL_COUNT
97 };
98
99 extern enum acpi_irq_model_id acpi_irq_model;
100
101 enum acpi_interrupt_id {
102 ACPI_INTERRUPT_PMI = 1,
103 ACPI_INTERRUPT_INIT,
104 ACPI_INTERRUPT_CPEI,
105 ACPI_INTERRUPT_COUNT
106 };
107
108 #define ACPI_SPACE_MEM 0
109
110 enum acpi_address_range_id {
111 ACPI_ADDRESS_RANGE_MEMORY = 1,
112 ACPI_ADDRESS_RANGE_RESERVED = 2,
113 ACPI_ADDRESS_RANGE_ACPI = 3,
114 ACPI_ADDRESS_RANGE_NVS = 4,
115 ACPI_ADDRESS_RANGE_COUNT
116 };
117
118
119 /* Table Handlers */
120
121 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
122
123 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
124 const unsigned long end);
125
126 /* Debugger support */
127
128 struct acpi_debugger_ops {
129 int (*create_thread)(acpi_osd_exec_callback function, void *context);
130 ssize_t (*write_log)(const char *msg);
131 ssize_t (*read_cmd)(char *buffer, size_t length);
132 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
133 int (*notify_command_complete)(void);
134 };
135
136 struct acpi_debugger {
137 const struct acpi_debugger_ops *ops;
138 struct module *owner;
139 struct mutex lock;
140 };
141
142 #ifdef CONFIG_ACPI_DEBUGGER
143 int __init acpi_debugger_init(void);
144 int acpi_register_debugger(struct module *owner,
145 const struct acpi_debugger_ops *ops);
146 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
147 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
148 ssize_t acpi_debugger_write_log(const char *msg);
149 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
150 int acpi_debugger_wait_command_ready(void);
151 int acpi_debugger_notify_command_complete(void);
152 #else
153 static inline int acpi_debugger_init(void)
154 {
155 return -ENODEV;
156 }
157
158 static inline int acpi_register_debugger(struct module *owner,
159 const struct acpi_debugger_ops *ops)
160 {
161 return -ENODEV;
162 }
163
164 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
165 {
166 }
167
168 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
169 void *context)
170 {
171 return -ENODEV;
172 }
173
174 static inline int acpi_debugger_write_log(const char *msg)
175 {
176 return -ENODEV;
177 }
178
179 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
180 {
181 return -ENODEV;
182 }
183
184 static inline int acpi_debugger_wait_command_ready(void)
185 {
186 return -ENODEV;
187 }
188
189 static inline int acpi_debugger_notify_command_complete(void)
190 {
191 return -ENODEV;
192 }
193 #endif
194
195 #define BAD_MADT_ENTRY(entry, end) ( \
196 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
197 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
198
199 struct acpi_subtable_proc {
200 int id;
201 acpi_tbl_entry_handler handler;
202 int count;
203 };
204
205 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
206 void __acpi_unmap_table(char *map, unsigned long size);
207 int early_acpi_boot_init(void);
208 int acpi_boot_init (void);
209 void acpi_boot_table_init (void);
210 int acpi_mps_check (void);
211 int acpi_numa_init (void);
212
213 int acpi_table_init (void);
214 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
215 int __init acpi_parse_entries(char *id, unsigned long table_size,
216 acpi_tbl_entry_handler handler,
217 struct acpi_table_header *table_header,
218 int entry_id, unsigned int max_entries);
219 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
220 int entry_id,
221 acpi_tbl_entry_handler handler,
222 unsigned int max_entries);
223 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
224 int entry_id,
225 acpi_tbl_entry_handler handler,
226 unsigned int max_entries);
227 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
228 struct acpi_subtable_proc *proc, int proc_num,
229 unsigned int max_entries);
230 int acpi_table_parse_madt(enum acpi_madt_type id,
231 acpi_tbl_entry_handler handler,
232 unsigned int max_entries);
233 int acpi_parse_mcfg (struct acpi_table_header *header);
234 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
235
236 /* the following numa functions are architecture-dependent */
237 void acpi_numa_slit_init (struct acpi_table_slit *slit);
238
239 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
240 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
241 #else
242 static inline void
243 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
244 #endif
245
246 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
247
248 #ifdef CONFIG_ARM64
249 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
250 #else
251 static inline void
252 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
253 #endif
254
255 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
256
257 #ifndef PHYS_CPUID_INVALID
258 typedef u32 phys_cpuid_t;
259 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
260 #endif
261
262 static inline bool invalid_logical_cpuid(u32 cpuid)
263 {
264 return (int)cpuid < 0;
265 }
266
267 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
268 {
269 return phys_id == PHYS_CPUID_INVALID;
270 }
271
272 #ifdef CONFIG_ACPI_HOTPLUG_CPU
273 /* Arch dependent functions for cpu hotplug support */
274 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
275 int acpi_unmap_cpu(int cpu);
276 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
277
278 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
279 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
280 #endif
281
282 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
283 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
284 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
285 void acpi_irq_stats_init(void);
286 extern u32 acpi_irq_handled;
287 extern u32 acpi_irq_not_handled;
288 extern unsigned int acpi_sci_irq;
289 extern bool acpi_no_s5;
290 #define INVALID_ACPI_IRQ ((unsigned)-1)
291 static inline bool acpi_sci_irq_valid(void)
292 {
293 return acpi_sci_irq != INVALID_ACPI_IRQ;
294 }
295
296 extern int sbf_port;
297 extern unsigned long acpi_realmode_flags;
298
299 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
300 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
301 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
302
303 void acpi_set_irq_model(enum acpi_irq_model_id model,
304 struct fwnode_handle *fwnode);
305
306 #ifdef CONFIG_X86_IO_APIC
307 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
308 #else
309 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
310 #endif
311 /*
312 * This function undoes the effect of one call to acpi_register_gsi().
313 * If this matches the last registration, any IRQ resources for gsi
314 * are freed.
315 */
316 void acpi_unregister_gsi (u32 gsi);
317
318 struct pci_dev;
319
320 int acpi_pci_irq_enable (struct pci_dev *dev);
321 void acpi_penalize_isa_irq(int irq, int active);
322 bool acpi_isa_irq_available(int irq);
323 void acpi_pci_irq_disable (struct pci_dev *dev);
324
325 extern int ec_read(u8 addr, u8 *val);
326 extern int ec_write(u8 addr, u8 val);
327 extern int ec_transaction(u8 command,
328 const u8 *wdata, unsigned wdata_len,
329 u8 *rdata, unsigned rdata_len);
330 extern acpi_handle ec_get_handle(void);
331
332 extern bool acpi_is_pnp_device(struct acpi_device *);
333
334 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
335
336 typedef void (*wmi_notify_handler) (u32 value, void *context);
337
338 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
339 u32 method_id,
340 const struct acpi_buffer *in,
341 struct acpi_buffer *out);
342 extern acpi_status wmi_query_block(const char *guid, u8 instance,
343 struct acpi_buffer *out);
344 extern acpi_status wmi_set_block(const char *guid, u8 instance,
345 const struct acpi_buffer *in);
346 extern acpi_status wmi_install_notify_handler(const char *guid,
347 wmi_notify_handler handler, void *data);
348 extern acpi_status wmi_remove_notify_handler(const char *guid);
349 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
350 extern bool wmi_has_guid(const char *guid);
351
352 #endif /* CONFIG_ACPI_WMI */
353
354 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
355 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
356 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
357 #define ACPI_VIDEO_BACKLIGHT 0x0008
358 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
359 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
360 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
361 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
362 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
363 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
364 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
365 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
366
367 extern char acpi_video_backlight_string[];
368 extern long acpi_is_video_device(acpi_handle handle);
369 extern int acpi_blacklisted(void);
370 extern void acpi_osi_setup(char *str);
371 extern bool acpi_osi_is_win8(void);
372
373 #ifdef CONFIG_ACPI_NUMA
374 int acpi_map_pxm_to_online_node(int pxm);
375 int acpi_get_node(acpi_handle handle);
376 #else
377 static inline int acpi_map_pxm_to_online_node(int pxm)
378 {
379 return 0;
380 }
381 static inline int acpi_get_node(acpi_handle handle)
382 {
383 return 0;
384 }
385 #endif
386 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
387
388 extern int pnpacpi_disabled;
389
390 #define PXM_INVAL (-1)
391
392 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
393 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
394 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
395 struct resource_win *win);
396 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
397 struct resource_win *win);
398 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
399 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
400 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
401 struct resource *res);
402
403 void acpi_dev_free_resource_list(struct list_head *list);
404 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
405 int (*preproc)(struct acpi_resource *, void *),
406 void *preproc_data);
407 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
408 unsigned long types);
409
410 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
411 void *arg)
412 {
413 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
414 }
415
416 int acpi_check_resource_conflict(const struct resource *res);
417
418 int acpi_check_region(resource_size_t start, resource_size_t n,
419 const char *name);
420
421 int acpi_resources_are_enforced(void);
422
423 #ifdef CONFIG_HIBERNATION
424 void __init acpi_no_s4_hw_signature(void);
425 #endif
426
427 #ifdef CONFIG_PM_SLEEP
428 void __init acpi_old_suspend_ordering(void);
429 void __init acpi_nvs_nosave(void);
430 void __init acpi_nvs_nosave_s3(void);
431 #endif /* CONFIG_PM_SLEEP */
432
433 struct acpi_osc_context {
434 char *uuid_str; /* UUID string */
435 int rev;
436 struct acpi_buffer cap; /* list of DWORD capabilities */
437 struct acpi_buffer ret; /* free by caller if success */
438 };
439
440 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
441 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
442
443 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
444 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
445 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
446 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
447
448 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
449 #define OSC_QUERY_ENABLE 0x00000001 /* input */
450 #define OSC_REQUEST_ERROR 0x00000002 /* return */
451 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
452 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
453 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
454
455 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
456 #define OSC_SB_PAD_SUPPORT 0x00000001
457 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
458 #define OSC_SB_PR3_SUPPORT 0x00000004
459 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
460 #define OSC_SB_APEI_SUPPORT 0x00000010
461 #define OSC_SB_CPC_SUPPORT 0x00000020
462 #define OSC_SB_CPCV2_SUPPORT 0x00000040
463 #define OSC_SB_PCLPI_SUPPORT 0x00000080
464 #define OSC_SB_OSLPI_SUPPORT 0x00000100
465
466 extern bool osc_sb_apei_support_acked;
467 extern bool osc_pc_lpi_support_confirmed;
468
469 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
470 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
471 #define OSC_PCI_ASPM_SUPPORT 0x00000002
472 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
473 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
474 #define OSC_PCI_MSI_SUPPORT 0x00000010
475 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
476
477 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
478 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
479 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
480 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
481 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
482 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
483 #define OSC_PCI_CONTROL_MASKS 0x0000001f
484
485 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
486 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
487 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
488 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
489 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
490 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
491 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
492 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
493 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
494 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
495
496 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
497 u32 *mask, u32 req);
498
499 /* Enable _OST when all relevant hotplug operations are enabled */
500 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
501 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
502 defined(CONFIG_ACPI_CONTAINER)
503 #define ACPI_HOTPLUG_OST
504 #endif
505
506 /* _OST Source Event Code (OSPM Action) */
507 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
508 #define ACPI_OST_EC_OSPM_EJECT 0x103
509 #define ACPI_OST_EC_OSPM_INSERTION 0x200
510
511 /* _OST General Processing Status Code */
512 #define ACPI_OST_SC_SUCCESS 0x0
513 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
514 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
515
516 /* _OST OS Shutdown Processing (0x100) Status Code */
517 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
518 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
519 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
520 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
521
522 /* _OST Ejection Request (0x3, 0x103) Status Code */
523 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
524 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
525 #define ACPI_OST_SC_DEVICE_BUSY 0x82
526 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
527 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
528
529 /* _OST Insertion Request (0x200) Status Code */
530 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
531 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
532 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
533
534 extern void acpi_early_init(void);
535 extern void acpi_subsystem_init(void);
536
537 extern int acpi_nvs_register(__u64 start, __u64 size);
538
539 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
540 void *data);
541
542 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
543 const struct device *dev);
544
545 extern bool acpi_driver_match_device(struct device *dev,
546 const struct device_driver *drv);
547 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
548 int acpi_device_modalias(struct device *, char *, int);
549 void acpi_walk_dep_device_list(acpi_handle handle);
550
551 struct platform_device *acpi_create_platform_device(struct acpi_device *);
552 #define ACPI_PTR(_ptr) (_ptr)
553
554 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
555 {
556 adev->flags.visited = true;
557 }
558
559 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
560 {
561 adev->flags.visited = false;
562 }
563
564 enum acpi_reconfig_event {
565 ACPI_RECONFIG_DEVICE_ADD = 0,
566 ACPI_RECONFIG_DEVICE_REMOVE,
567 };
568
569 int acpi_reconfig_notifier_register(struct notifier_block *nb);
570 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
571
572 #else /* !CONFIG_ACPI */
573
574 #define acpi_disabled 1
575
576 #define ACPI_COMPANION(dev) (NULL)
577 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
578 #define ACPI_HANDLE(dev) (NULL)
579 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
580
581 struct fwnode_handle;
582
583 static inline bool acpi_dev_found(const char *hid)
584 {
585 return false;
586 }
587
588 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
589 {
590 return false;
591 }
592
593 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
594 {
595 return false;
596 }
597
598 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
599 {
600 return NULL;
601 }
602
603 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
604 {
605 return false;
606 }
607
608 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
609 {
610 return NULL;
611 }
612
613 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
614 const char *name)
615 {
616 return false;
617 }
618
619 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
620 {
621 return NULL;
622 }
623
624 static inline bool has_acpi_companion(struct device *dev)
625 {
626 return false;
627 }
628
629 static inline void acpi_preset_companion(struct device *dev,
630 struct acpi_device *parent, u64 addr)
631 {
632 }
633
634 static inline const char *acpi_dev_name(struct acpi_device *adev)
635 {
636 return NULL;
637 }
638
639 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
640 {
641 return NULL;
642 }
643
644 static inline void acpi_early_init(void) { }
645 static inline void acpi_subsystem_init(void) { }
646
647 static inline int early_acpi_boot_init(void)
648 {
649 return 0;
650 }
651 static inline int acpi_boot_init(void)
652 {
653 return 0;
654 }
655
656 static inline void acpi_boot_table_init(void)
657 {
658 return;
659 }
660
661 static inline int acpi_mps_check(void)
662 {
663 return 0;
664 }
665
666 static inline int acpi_check_resource_conflict(struct resource *res)
667 {
668 return 0;
669 }
670
671 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
672 const char *name)
673 {
674 return 0;
675 }
676
677 struct acpi_table_header;
678 static inline int acpi_table_parse(char *id,
679 int (*handler)(struct acpi_table_header *))
680 {
681 return -ENODEV;
682 }
683
684 static inline int acpi_nvs_register(__u64 start, __u64 size)
685 {
686 return 0;
687 }
688
689 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
690 void *data)
691 {
692 return 0;
693 }
694
695 struct acpi_device_id;
696
697 static inline const struct acpi_device_id *acpi_match_device(
698 const struct acpi_device_id *ids, const struct device *dev)
699 {
700 return NULL;
701 }
702
703 static inline bool acpi_driver_match_device(struct device *dev,
704 const struct device_driver *drv)
705 {
706 return false;
707 }
708
709 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
710 const u8 *uuid,
711 int rev, int func,
712 union acpi_object *argv4)
713 {
714 return NULL;
715 }
716
717 static inline int acpi_device_uevent_modalias(struct device *dev,
718 struct kobj_uevent_env *env)
719 {
720 return -ENODEV;
721 }
722
723 static inline int acpi_device_modalias(struct device *dev,
724 char *buf, int size)
725 {
726 return -ENODEV;
727 }
728
729 static inline bool acpi_dma_supported(struct acpi_device *adev)
730 {
731 return false;
732 }
733
734 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
735 {
736 return DEV_DMA_NOT_SUPPORTED;
737 }
738
739 #define ACPI_PTR(_ptr) (NULL)
740
741 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
742 {
743 }
744
745 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
746 {
747 }
748
749 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
750 {
751 return -EINVAL;
752 }
753
754 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
755 {
756 return -EINVAL;
757 }
758
759 #endif /* !CONFIG_ACPI */
760
761 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
762 int acpi_ioapic_add(acpi_handle root);
763 #else
764 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
765 #endif
766
767 #ifdef CONFIG_ACPI
768 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
769 u32 pm1a_ctrl, u32 pm1b_ctrl));
770
771 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
772 u32 pm1a_control, u32 pm1b_control);
773
774 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
775 u32 val_a, u32 val_b));
776
777 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
778 u32 val_a, u32 val_b);
779
780 #ifdef CONFIG_X86
781 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
782 #else
783 static inline void arch_reserve_mem_area(acpi_physical_address addr,
784 size_t size)
785 {
786 }
787 #endif /* CONFIG_X86 */
788 #else
789 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
790 #endif
791
792 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
793 int acpi_dev_runtime_suspend(struct device *dev);
794 int acpi_dev_runtime_resume(struct device *dev);
795 int acpi_subsys_runtime_suspend(struct device *dev);
796 int acpi_subsys_runtime_resume(struct device *dev);
797 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
798 int acpi_dev_pm_attach(struct device *dev, bool power_on);
799 #else
800 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
801 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
802 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
803 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
804 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
805 {
806 return NULL;
807 }
808 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
809 {
810 return -ENODEV;
811 }
812 #endif
813
814 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
815 int acpi_dev_suspend_late(struct device *dev);
816 int acpi_dev_resume_early(struct device *dev);
817 int acpi_subsys_prepare(struct device *dev);
818 void acpi_subsys_complete(struct device *dev);
819 int acpi_subsys_suspend_late(struct device *dev);
820 int acpi_subsys_resume_early(struct device *dev);
821 int acpi_subsys_suspend(struct device *dev);
822 int acpi_subsys_freeze(struct device *dev);
823 #else
824 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
825 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
826 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
827 static inline void acpi_subsys_complete(struct device *dev) {}
828 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
829 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
830 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
831 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
832 #endif
833
834 #ifdef CONFIG_ACPI
835 __printf(3, 4)
836 void acpi_handle_printk(const char *level, acpi_handle handle,
837 const char *fmt, ...);
838 #else /* !CONFIG_ACPI */
839 static inline __printf(3, 4) void
840 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
841 #endif /* !CONFIG_ACPI */
842
843 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
844 __printf(3, 4)
845 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
846 #else
847 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
848 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
849 #endif
850
851 /*
852 * acpi_handle_<level>: Print message with ACPI prefix and object path
853 *
854 * These interfaces acquire the global namespace mutex to obtain an object
855 * path. In interrupt context, it shows the object path as <n/a>.
856 */
857 #define acpi_handle_emerg(handle, fmt, ...) \
858 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
859 #define acpi_handle_alert(handle, fmt, ...) \
860 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
861 #define acpi_handle_crit(handle, fmt, ...) \
862 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
863 #define acpi_handle_err(handle, fmt, ...) \
864 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
865 #define acpi_handle_warn(handle, fmt, ...) \
866 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
867 #define acpi_handle_notice(handle, fmt, ...) \
868 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
869 #define acpi_handle_info(handle, fmt, ...) \
870 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
871
872 #if defined(DEBUG)
873 #define acpi_handle_debug(handle, fmt, ...) \
874 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
875 #else
876 #if defined(CONFIG_DYNAMIC_DEBUG)
877 #define acpi_handle_debug(handle, fmt, ...) \
878 do { \
879 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
880 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
881 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
882 ##__VA_ARGS__); \
883 } while (0)
884 #else
885 #define acpi_handle_debug(handle, fmt, ...) \
886 ({ \
887 if (0) \
888 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
889 0; \
890 })
891 #endif
892 #endif
893
894 struct acpi_gpio_params {
895 unsigned int crs_entry_index;
896 unsigned int line_index;
897 bool active_low;
898 };
899
900 struct acpi_gpio_mapping {
901 const char *name;
902 const struct acpi_gpio_params *data;
903 unsigned int size;
904 };
905
906 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
907 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
908 const struct acpi_gpio_mapping *gpios);
909
910 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
911 {
912 if (adev)
913 adev->driver_gpios = NULL;
914 }
915
916 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
917 #else
918 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
919 const struct acpi_gpio_mapping *gpios)
920 {
921 return -ENXIO;
922 }
923 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
924
925 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
926 {
927 return -ENXIO;
928 }
929 #endif
930
931 /* Device properties */
932
933 #define MAX_ACPI_REFERENCE_ARGS 8
934 struct acpi_reference_args {
935 struct acpi_device *adev;
936 size_t nargs;
937 u64 args[MAX_ACPI_REFERENCE_ARGS];
938 };
939
940 #ifdef CONFIG_ACPI
941 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
942 acpi_object_type type, const union acpi_object **obj);
943 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
944 const char *name, size_t index,
945 struct acpi_reference_args *args);
946
947 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
948 void **valptr);
949 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
950 enum dev_prop_type proptype, void *val);
951 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
952 enum dev_prop_type proptype, void *val, size_t nval);
953 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
954 enum dev_prop_type proptype, void *val, size_t nval);
955
956 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
957 struct fwnode_handle *subnode);
958
959 struct acpi_probe_entry;
960 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
961 struct acpi_probe_entry *);
962
963 #define ACPI_TABLE_ID_LEN 5
964
965 /**
966 * struct acpi_probe_entry - boot-time probing entry
967 * @id: ACPI table name
968 * @type: Optional subtable type to match
969 * (if @id contains subtables)
970 * @subtable_valid: Optional callback to check the validity of
971 * the subtable
972 * @probe_table: Callback to the driver being probed when table
973 * match is successful
974 * @probe_subtbl: Callback to the driver being probed when table and
975 * subtable match (and optional callback is successful)
976 * @driver_data: Sideband data provided back to the driver
977 */
978 struct acpi_probe_entry {
979 __u8 id[ACPI_TABLE_ID_LEN];
980 __u8 type;
981 acpi_probe_entry_validate_subtbl subtable_valid;
982 union {
983 acpi_tbl_table_handler probe_table;
984 acpi_tbl_entry_handler probe_subtbl;
985 };
986 kernel_ulong_t driver_data;
987 };
988
989 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
990 static const struct acpi_probe_entry __acpi_probe_##name \
991 __used __section(__##table##_acpi_probe_table) \
992 = { \
993 .id = table_id, \
994 .type = subtable, \
995 .subtable_valid = valid, \
996 .probe_table = (acpi_tbl_table_handler)fn, \
997 .driver_data = data, \
998 }
999
1000 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1001 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1002
1003 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1004
1005 #define acpi_probe_device_table(t) \
1006 ({ \
1007 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1008 ACPI_PROBE_TABLE_END(t); \
1009 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1010 (&ACPI_PROBE_TABLE_END(t) - \
1011 &ACPI_PROBE_TABLE(t))); \
1012 })
1013 #else
1014 static inline int acpi_dev_get_property(struct acpi_device *adev,
1015 const char *name, acpi_object_type type,
1016 const union acpi_object **obj)
1017 {
1018 return -ENXIO;
1019 }
1020
1021 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1022 const char *name, size_t index,
1023 struct acpi_reference_args *args)
1024 {
1025 return -ENXIO;
1026 }
1027
1028 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
1029 const char *propname,
1030 void **valptr)
1031 {
1032 return -ENXIO;
1033 }
1034
1035 static inline int acpi_dev_prop_get(struct acpi_device *adev,
1036 const char *propname,
1037 void **valptr)
1038 {
1039 return -ENXIO;
1040 }
1041
1042 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
1043 const char *propname,
1044 enum dev_prop_type proptype,
1045 void *val)
1046 {
1047 return -ENXIO;
1048 }
1049
1050 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
1051 const char *propname,
1052 enum dev_prop_type proptype,
1053 void *val, size_t nval)
1054 {
1055 return -ENXIO;
1056 }
1057
1058 static inline int acpi_dev_prop_read(struct acpi_device *adev,
1059 const char *propname,
1060 enum dev_prop_type proptype,
1061 void *val, size_t nval)
1062 {
1063 return -ENXIO;
1064 }
1065
1066 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
1067 struct fwnode_handle *subnode)
1068 {
1069 return NULL;
1070 }
1071
1072 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1073 static const void * __acpi_table_##name[] \
1074 __attribute__((unused)) \
1075 = { (void *) table_id, \
1076 (void *) subtable, \
1077 (void *) valid, \
1078 (void *) fn, \
1079 (void *) data }
1080
1081 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1082 #endif
1083
1084 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1085 void acpi_table_upgrade(void);
1086 #else
1087 static inline void acpi_table_upgrade(void) { }
1088 #endif
1089
1090 #endif /*_LINUX_ACPI_H*/
Linux kernel - Deliverables
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