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
41 #include <acpi/acpi_bus.h>
42 #include <acpi/acpi_drivers.h>
43 #include <acpi/acpi_numa.h>
44 #include <acpi/acpi_io.h>
45 #include <asm/acpi.h>
46
acpi_device_handle(struct acpi_device * adev)47 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
48 {
49 return adev ? adev->handle : NULL;
50 }
51
52 #define ACPI_COMPANION(dev) to_acpi_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))
56
57 /**
58 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
59 * the PCI-defined class-code information
60 *
61 * @_cls : the class, subclass, prog-if triple for this device
62 * @_msk : the class mask for this device
63 *
64 * This macro is used to create a struct acpi_device_id that matches a
65 * specific PCI class. The .id and .driver_data fields will be left
66 * initialized with the default value.
67 */
68 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
69
has_acpi_companion(struct device * dev)70 static inline bool has_acpi_companion(struct device *dev)
71 {
72 return is_acpi_device_node(dev->fwnode);
73 }
74
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)75 static inline void acpi_preset_companion(struct device *dev,
76 struct acpi_device *parent, u64 addr)
77 {
78 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
79 }
80
acpi_dev_name(struct acpi_device * adev)81 static inline const char *acpi_dev_name(struct acpi_device *adev)
82 {
83 return dev_name(&adev->dev);
84 }
85
86 enum acpi_irq_model_id {
87 ACPI_IRQ_MODEL_PIC = 0,
88 ACPI_IRQ_MODEL_IOAPIC,
89 ACPI_IRQ_MODEL_IOSAPIC,
90 ACPI_IRQ_MODEL_PLATFORM,
91 ACPI_IRQ_MODEL_GIC,
92 ACPI_IRQ_MODEL_COUNT
93 };
94
95 extern enum acpi_irq_model_id acpi_irq_model;
96
97 enum acpi_interrupt_id {
98 ACPI_INTERRUPT_PMI = 1,
99 ACPI_INTERRUPT_INIT,
100 ACPI_INTERRUPT_CPEI,
101 ACPI_INTERRUPT_COUNT
102 };
103
104 #define ACPI_SPACE_MEM 0
105
106 enum acpi_address_range_id {
107 ACPI_ADDRESS_RANGE_MEMORY = 1,
108 ACPI_ADDRESS_RANGE_RESERVED = 2,
109 ACPI_ADDRESS_RANGE_ACPI = 3,
110 ACPI_ADDRESS_RANGE_NVS = 4,
111 ACPI_ADDRESS_RANGE_COUNT
112 };
113
114
115 /* Table Handlers */
116
117 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
118
119 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
120 const unsigned long end);
121
122 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
123 void acpi_initrd_override(void *data, size_t size);
124 #else
acpi_initrd_override(void * data,size_t size)125 static inline void acpi_initrd_override(void *data, size_t size)
126 {
127 }
128 #endif
129
130 #define BAD_MADT_ENTRY(entry, end) ( \
131 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
132 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
133
134 struct acpi_subtable_proc {
135 int id;
136 acpi_tbl_entry_handler handler;
137 int count;
138 };
139
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);
147
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,
155 int entry_id,
156 acpi_tbl_entry_handler handler,
157 unsigned int max_entries);
158 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
159 int entry_id,
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);
170
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);
177
178 #ifndef PHYS_CPUID_INVALID
179 typedef u32 phys_cpuid_t;
180 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
181 #endif
182
invalid_logical_cpuid(u32 cpuid)183 static inline bool invalid_logical_cpuid(u32 cpuid)
184 {
185 return (int)cpuid < 0;
186 }
187
invalid_phys_cpuid(phys_cpuid_t phys_id)188 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
189 {
190 return phys_id == PHYS_CPUID_INVALID;
191 }
192
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 */
198
199 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
200 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
201 #endif
202
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)
acpi_sci_irq_valid(void)211 static inline bool acpi_sci_irq_valid(void)
212 {
213 return acpi_sci_irq != INVALID_ACPI_IRQ;
214 }
215
216 extern int sbf_port;
217 extern unsigned long acpi_realmode_flags;
218
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);
222
223 void acpi_set_irq_model(enum acpi_irq_model_id model,
224 struct fwnode_handle *fwnode);
225
226 #ifdef CONFIG_X86_IO_APIC
227 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
228 #else
229 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
230 #endif
231 /*
232 * This function undoes the effect of one call to acpi_register_gsi().
233 * If this matches the last registration, any IRQ resources for gsi
234 * are freed.
235 */
236 void acpi_unregister_gsi (u32 gsi);
237
238 struct pci_dev;
239
240 int acpi_pci_irq_enable (struct pci_dev *dev);
241 void acpi_penalize_isa_irq(int irq, int active);
242 bool acpi_isa_irq_available(int irq);
243 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
244 void acpi_pci_irq_disable (struct pci_dev *dev);
245
246 extern int ec_read(u8 addr, u8 *val);
247 extern int ec_write(u8 addr, u8 val);
248 extern int ec_transaction(u8 command,
249 const u8 *wdata, unsigned wdata_len,
250 u8 *rdata, unsigned rdata_len);
251 extern acpi_handle ec_get_handle(void);
252
253 extern bool acpi_is_pnp_device(struct acpi_device *);
254
255 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
256
257 typedef void (*wmi_notify_handler) (u32 value, void *context);
258
259 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
260 u32 method_id,
261 const struct acpi_buffer *in,
262 struct acpi_buffer *out);
263 extern acpi_status wmi_query_block(const char *guid, u8 instance,
264 struct acpi_buffer *out);
265 extern acpi_status wmi_set_block(const char *guid, u8 instance,
266 const struct acpi_buffer *in);
267 extern acpi_status wmi_install_notify_handler(const char *guid,
268 wmi_notify_handler handler, void *data);
269 extern acpi_status wmi_remove_notify_handler(const char *guid);
270 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
271 extern bool wmi_has_guid(const char *guid);
272
273 #endif /* CONFIG_ACPI_WMI */
274
275 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
276 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
277 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
278 #define ACPI_VIDEO_BACKLIGHT 0x0008
279 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
280 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
281 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
282 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
283 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
284 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
285 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
286 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
287
288 extern char acpi_video_backlight_string[];
289 extern long acpi_is_video_device(acpi_handle handle);
290 extern int acpi_blacklisted(void);
291 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
292 extern void acpi_osi_setup(char *str);
293 extern bool acpi_osi_is_win8(void);
294
295 #ifdef CONFIG_ACPI_NUMA
296 int acpi_map_pxm_to_online_node(int pxm);
297 int acpi_get_node(acpi_handle handle);
298 #else
acpi_map_pxm_to_online_node(int pxm)299 static inline int acpi_map_pxm_to_online_node(int pxm)
300 {
301 return 0;
302 }
acpi_get_node(acpi_handle handle)303 static inline int acpi_get_node(acpi_handle handle)
304 {
305 return 0;
306 }
307 #endif
308 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
309
310 extern int pnpacpi_disabled;
311
312 #define PXM_INVAL (-1)
313
314 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
315 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
316 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
317 struct resource_win *win);
318 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
319 struct resource_win *win);
320 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
321 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
322 struct resource *res);
323
324 void acpi_dev_free_resource_list(struct list_head *list);
325 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
326 int (*preproc)(struct acpi_resource *, void *),
327 void *preproc_data);
328 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
329 unsigned long types);
330
acpi_dev_filter_resource_type_cb(struct acpi_resource * ares,void * arg)331 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
332 void *arg)
333 {
334 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
335 }
336
337 int acpi_check_resource_conflict(const struct resource *res);
338
339 int acpi_check_region(resource_size_t start, resource_size_t n,
340 const char *name);
341
342 int acpi_resources_are_enforced(void);
343
344 #ifdef CONFIG_HIBERNATION
345 void __init acpi_no_s4_hw_signature(void);
346 #endif
347
348 #ifdef CONFIG_PM_SLEEP
349 void __init acpi_old_suspend_ordering(void);
350 void __init acpi_nvs_nosave(void);
351 void __init acpi_nvs_nosave_s3(void);
352 #endif /* CONFIG_PM_SLEEP */
353
354 struct acpi_osc_context {
355 char *uuid_str; /* UUID string */
356 int rev;
357 struct acpi_buffer cap; /* list of DWORD capabilities */
358 struct acpi_buffer ret; /* free by caller if success */
359 };
360
361 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
362 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
363
364 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
365 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
366 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
367 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
368
369 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
370 #define OSC_QUERY_ENABLE 0x00000001 /* input */
371 #define OSC_REQUEST_ERROR 0x00000002 /* return */
372 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
373 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
374 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
375
376 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
377 #define OSC_SB_PAD_SUPPORT 0x00000001
378 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
379 #define OSC_SB_PR3_SUPPORT 0x00000004
380 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
381 #define OSC_SB_APEI_SUPPORT 0x00000010
382 #define OSC_SB_CPC_SUPPORT 0x00000020
383
384 extern bool osc_sb_apei_support_acked;
385
386 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
387 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
388 #define OSC_PCI_ASPM_SUPPORT 0x00000002
389 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
390 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
391 #define OSC_PCI_MSI_SUPPORT 0x00000010
392 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
393
394 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
395 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
396 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
397 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
398 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
399 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
400 #define OSC_PCI_CONTROL_MASKS 0x0000001f
401
402 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
403 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
404 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
405 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
406 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
407 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
408 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
409 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
410 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
411 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
412
413 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
414 u32 *mask, u32 req);
415
416 /* Enable _OST when all relevant hotplug operations are enabled */
417 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
418 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
419 defined(CONFIG_ACPI_CONTAINER)
420 #define ACPI_HOTPLUG_OST
421 #endif
422
423 /* _OST Source Event Code (OSPM Action) */
424 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
425 #define ACPI_OST_EC_OSPM_EJECT 0x103
426 #define ACPI_OST_EC_OSPM_INSERTION 0x200
427
428 /* _OST General Processing Status Code */
429 #define ACPI_OST_SC_SUCCESS 0x0
430 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
431 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
432
433 /* _OST OS Shutdown Processing (0x100) Status Code */
434 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
435 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
436 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
437 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
438
439 /* _OST Ejection Request (0x3, 0x103) Status Code */
440 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
441 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
442 #define ACPI_OST_SC_DEVICE_BUSY 0x82
443 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
444 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
445
446 /* _OST Insertion Request (0x200) Status Code */
447 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
448 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
449 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
450
451 extern void acpi_early_init(void);
452 extern void acpi_subsystem_init(void);
453
454 extern int acpi_nvs_register(__u64 start, __u64 size);
455
456 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
457 void *data);
458
459 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
460 const struct device *dev);
461
462 extern bool acpi_driver_match_device(struct device *dev,
463 const struct device_driver *drv);
464 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
465 int acpi_device_modalias(struct device *, char *, int);
466 void acpi_walk_dep_device_list(acpi_handle handle);
467
468 struct platform_device *acpi_create_platform_device(struct acpi_device *);
469 #define ACPI_PTR(_ptr) (_ptr)
470
471 #else /* !CONFIG_ACPI */
472
473 #define acpi_disabled 1
474
475 #define ACPI_COMPANION(dev) (NULL)
476 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
477 #define ACPI_HANDLE(dev) (NULL)
478 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
479
480 struct fwnode_handle;
481
is_acpi_node(struct fwnode_handle * fwnode)482 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
483 {
484 return false;
485 }
486
is_acpi_device_node(struct fwnode_handle * fwnode)487 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
488 {
489 return false;
490 }
491
to_acpi_device_node(struct fwnode_handle * fwnode)492 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
493 {
494 return NULL;
495 }
496
is_acpi_data_node(struct fwnode_handle * fwnode)497 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
498 {
499 return false;
500 }
501
to_acpi_data_node(struct fwnode_handle * fwnode)502 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
503 {
504 return NULL;
505 }
506
acpi_fwnode_handle(struct acpi_device * adev)507 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
508 {
509 return NULL;
510 }
511
has_acpi_companion(struct device * dev)512 static inline bool has_acpi_companion(struct device *dev)
513 {
514 return false;
515 }
516
acpi_preset_companion(struct device * dev,struct acpi_device * parent,u64 addr)517 static inline void acpi_preset_companion(struct device *dev,
518 struct acpi_device *parent, u64 addr)
519 {
520 }
521
acpi_dev_name(struct acpi_device * adev)522 static inline const char *acpi_dev_name(struct acpi_device *adev)
523 {
524 return NULL;
525 }
526
acpi_early_init(void)527 static inline void acpi_early_init(void) { }
acpi_subsystem_init(void)528 static inline void acpi_subsystem_init(void) { }
529
early_acpi_boot_init(void)530 static inline int early_acpi_boot_init(void)
531 {
532 return 0;
533 }
acpi_boot_init(void)534 static inline int acpi_boot_init(void)
535 {
536 return 0;
537 }
538
acpi_boot_table_init(void)539 static inline void acpi_boot_table_init(void)
540 {
541 return;
542 }
543
acpi_mps_check(void)544 static inline int acpi_mps_check(void)
545 {
546 return 0;
547 }
548
acpi_check_resource_conflict(struct resource * res)549 static inline int acpi_check_resource_conflict(struct resource *res)
550 {
551 return 0;
552 }
553
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)554 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
555 const char *name)
556 {
557 return 0;
558 }
559
560 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))561 static inline int acpi_table_parse(char *id,
562 int (*handler)(struct acpi_table_header *))
563 {
564 return -ENODEV;
565 }
566
acpi_nvs_register(__u64 start,__u64 size)567 static inline int acpi_nvs_register(__u64 start, __u64 size)
568 {
569 return 0;
570 }
571
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)572 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
573 void *data)
574 {
575 return 0;
576 }
577
578 struct acpi_device_id;
579
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)580 static inline const struct acpi_device_id *acpi_match_device(
581 const struct acpi_device_id *ids, const struct device *dev)
582 {
583 return NULL;
584 }
585
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)586 static inline bool acpi_driver_match_device(struct device *dev,
587 const struct device_driver *drv)
588 {
589 return false;
590 }
591
acpi_device_uevent_modalias(struct device * dev,struct kobj_uevent_env * env)592 static inline int acpi_device_uevent_modalias(struct device *dev,
593 struct kobj_uevent_env *env)
594 {
595 return -ENODEV;
596 }
597
acpi_device_modalias(struct device * dev,char * buf,int size)598 static inline int acpi_device_modalias(struct device *dev,
599 char *buf, int size)
600 {
601 return -ENODEV;
602 }
603
acpi_dma_supported(struct acpi_device * adev)604 static inline bool acpi_dma_supported(struct acpi_device *adev)
605 {
606 return false;
607 }
608
acpi_get_dma_attr(struct acpi_device * adev)609 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
610 {
611 return DEV_DMA_NOT_SUPPORTED;
612 }
613
614 #define ACPI_PTR(_ptr) (NULL)
615
616 #endif /* !CONFIG_ACPI */
617
618 #ifdef CONFIG_ACPI
619 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
620 u32 pm1a_ctrl, u32 pm1b_ctrl));
621
622 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
623 u32 pm1a_control, u32 pm1b_control);
624
625 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
626 u32 val_a, u32 val_b));
627
628 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
629 u32 val_a, u32 val_b);
630
631 #ifdef CONFIG_X86
632 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
633 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)634 static inline void arch_reserve_mem_area(acpi_physical_address addr,
635 size_t size)
636 {
637 }
638 #endif /* CONFIG_X86 */
639 #else
640 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
641 #endif
642
643 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
644 int acpi_dev_runtime_suspend(struct device *dev);
645 int acpi_dev_runtime_resume(struct device *dev);
646 int acpi_subsys_runtime_suspend(struct device *dev);
647 int acpi_subsys_runtime_resume(struct device *dev);
648 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
649 int acpi_dev_pm_attach(struct device *dev, bool power_on);
650 #else
acpi_dev_runtime_suspend(struct device * dev)651 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
acpi_dev_runtime_resume(struct device * dev)652 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
acpi_subsys_runtime_suspend(struct device * dev)653 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)654 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
acpi_dev_pm_get_node(struct device * dev)655 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
656 {
657 return NULL;
658 }
acpi_dev_pm_attach(struct device * dev,bool power_on)659 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
660 {
661 return -ENODEV;
662 }
663 #endif
664
665 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
666 int acpi_dev_suspend_late(struct device *dev);
667 int acpi_dev_resume_early(struct device *dev);
668 int acpi_subsys_prepare(struct device *dev);
669 void acpi_subsys_complete(struct device *dev);
670 int acpi_subsys_suspend_late(struct device *dev);
671 int acpi_subsys_resume_early(struct device *dev);
672 int acpi_subsys_suspend(struct device *dev);
673 int acpi_subsys_freeze(struct device *dev);
674 #else
acpi_dev_suspend_late(struct device * dev)675 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
acpi_dev_resume_early(struct device * dev)676 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
acpi_subsys_prepare(struct device * dev)677 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_complete(struct device * dev)678 static inline void acpi_subsys_complete(struct device *dev) {}
acpi_subsys_suspend_late(struct device * dev)679 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_resume_early(struct device * dev)680 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
acpi_subsys_suspend(struct device * dev)681 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
acpi_subsys_freeze(struct device * dev)682 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
683 #endif
684
685 #ifdef CONFIG_ACPI
686 __printf(3, 4)
687 void acpi_handle_printk(const char *level, acpi_handle handle,
688 const char *fmt, ...);
689 #else /* !CONFIG_ACPI */
690 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)691 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
692 #endif /* !CONFIG_ACPI */
693
694 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
695 __printf(3, 4)
696 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
697 #else
698 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
699 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
700 #endif
701
702 /*
703 * acpi_handle_<level>: Print message with ACPI prefix and object path
704 *
705 * These interfaces acquire the global namespace mutex to obtain an object
706 * path. In interrupt context, it shows the object path as <n/a>.
707 */
708 #define acpi_handle_emerg(handle, fmt, ...) \
709 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
710 #define acpi_handle_alert(handle, fmt, ...) \
711 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
712 #define acpi_handle_crit(handle, fmt, ...) \
713 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
714 #define acpi_handle_err(handle, fmt, ...) \
715 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
716 #define acpi_handle_warn(handle, fmt, ...) \
717 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
718 #define acpi_handle_notice(handle, fmt, ...) \
719 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
720 #define acpi_handle_info(handle, fmt, ...) \
721 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
722
723 #if defined(DEBUG)
724 #define acpi_handle_debug(handle, fmt, ...) \
725 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
726 #else
727 #if defined(CONFIG_DYNAMIC_DEBUG)
728 #define acpi_handle_debug(handle, fmt, ...) \
729 do { \
730 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
731 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
732 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
733 ##__VA_ARGS__); \
734 } while (0)
735 #else
736 #define acpi_handle_debug(handle, fmt, ...) \
737 ({ \
738 if (0) \
739 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
740 0; \
741 })
742 #endif
743 #endif
744
745 struct acpi_gpio_params {
746 unsigned int crs_entry_index;
747 unsigned int line_index;
748 bool active_low;
749 };
750
751 struct acpi_gpio_mapping {
752 const char *name;
753 const struct acpi_gpio_params *data;
754 unsigned int size;
755 };
756
757 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
758 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
759 const struct acpi_gpio_mapping *gpios);
760
acpi_dev_remove_driver_gpios(struct acpi_device * adev)761 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
762 {
763 if (adev)
764 adev->driver_gpios = NULL;
765 }
766
767 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
768 #else
acpi_dev_add_driver_gpios(struct acpi_device * adev,const struct acpi_gpio_mapping * gpios)769 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
770 const struct acpi_gpio_mapping *gpios)
771 {
772 return -ENXIO;
773 }
acpi_dev_remove_driver_gpios(struct acpi_device * adev)774 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
775
acpi_dev_gpio_irq_get(struct acpi_device * adev,int index)776 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
777 {
778 return -ENXIO;
779 }
780 #endif
781
782 /* Device properties */
783
784 #define MAX_ACPI_REFERENCE_ARGS 8
785 struct acpi_reference_args {
786 struct acpi_device *adev;
787 size_t nargs;
788 u64 args[MAX_ACPI_REFERENCE_ARGS];
789 };
790
791 #ifdef CONFIG_ACPI
792 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
793 acpi_object_type type, const union acpi_object **obj);
794 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
795 const char *name, size_t index,
796 struct acpi_reference_args *args);
797
798 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
799 void **valptr);
800 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
801 enum dev_prop_type proptype, void *val);
802 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
803 enum dev_prop_type proptype, void *val, size_t nval);
804 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
805 enum dev_prop_type proptype, void *val, size_t nval);
806
807 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
808 struct fwnode_handle *subnode);
809
810 struct acpi_probe_entry;
811 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
812 struct acpi_probe_entry *);
813
814 #define ACPI_TABLE_ID_LEN 5
815
816 /**
817 * struct acpi_probe_entry - boot-time probing entry
818 * @id: ACPI table name
819 * @type: Optional subtable type to match
820 * (if @id contains subtables)
821 * @subtable_valid: Optional callback to check the validity of
822 * the subtable
823 * @probe_table: Callback to the driver being probed when table
824 * match is successful
825 * @probe_subtbl: Callback to the driver being probed when table and
826 * subtable match (and optional callback is successful)
827 * @driver_data: Sideband data provided back to the driver
828 */
829 struct acpi_probe_entry {
830 __u8 id[ACPI_TABLE_ID_LEN];
831 __u8 type;
832 acpi_probe_entry_validate_subtbl subtable_valid;
833 union {
834 acpi_tbl_table_handler probe_table;
835 acpi_tbl_entry_handler probe_subtbl;
836 };
837 kernel_ulong_t driver_data;
838 };
839
840 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
841 static const struct acpi_probe_entry __acpi_probe_##name \
842 __used __section(__##table##_acpi_probe_table) \
843 = { \
844 .id = table_id, \
845 .type = subtable, \
846 .subtable_valid = valid, \
847 .probe_table = (acpi_tbl_table_handler)fn, \
848 .driver_data = data, \
849 }
850
851 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
852 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
853
854 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
855
856 #define acpi_probe_device_table(t) \
857 ({ \
858 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
859 ACPI_PROBE_TABLE_END(t); \
860 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
861 (&ACPI_PROBE_TABLE_END(t) - \
862 &ACPI_PROBE_TABLE(t))); \
863 })
864 #else
acpi_dev_get_property(struct acpi_device * adev,const char * name,acpi_object_type type,const union acpi_object ** obj)865 static inline int acpi_dev_get_property(struct acpi_device *adev,
866 const char *name, acpi_object_type type,
867 const union acpi_object **obj)
868 {
869 return -ENXIO;
870 }
871
acpi_node_get_property_reference(struct fwnode_handle * fwnode,const char * name,size_t index,struct acpi_reference_args * args)872 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
873 const char *name, size_t index,
874 struct acpi_reference_args *args)
875 {
876 return -ENXIO;
877 }
878
acpi_node_prop_get(struct fwnode_handle * fwnode,const char * propname,void ** valptr)879 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
880 const char *propname,
881 void **valptr)
882 {
883 return -ENXIO;
884 }
885
acpi_dev_prop_get(struct acpi_device * adev,const char * propname,void ** valptr)886 static inline int acpi_dev_prop_get(struct acpi_device *adev,
887 const char *propname,
888 void **valptr)
889 {
890 return -ENXIO;
891 }
892
acpi_dev_prop_read_single(struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val)893 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
894 const char *propname,
895 enum dev_prop_type proptype,
896 void *val)
897 {
898 return -ENXIO;
899 }
900
acpi_node_prop_read(struct fwnode_handle * fwnode,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)901 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
902 const char *propname,
903 enum dev_prop_type proptype,
904 void *val, size_t nval)
905 {
906 return -ENXIO;
907 }
908
acpi_dev_prop_read(struct acpi_device * adev,const char * propname,enum dev_prop_type proptype,void * val,size_t nval)909 static inline int acpi_dev_prop_read(struct acpi_device *adev,
910 const char *propname,
911 enum dev_prop_type proptype,
912 void *val, size_t nval)
913 {
914 return -ENXIO;
915 }
916
acpi_get_next_subnode(struct device * dev,struct fwnode_handle * subnode)917 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
918 struct fwnode_handle *subnode)
919 {
920 return NULL;
921 }
922
923 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
924 static const void * __acpi_table_##name[] \
925 __attribute__((unused)) \
926 = { (void *) table_id, \
927 (void *) subtable, \
928 (void *) valid, \
929 (void *) fn, \
930 (void *) data }
931
932 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
933 #endif
934
935 #endif /*_LINUX_ACPI_H*/
936