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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 #include <linux/uuid.h>
30
31 #ifndef _LINUX
32 #define _LINUX
33 #endif
34 #include <acpi/acpi.h>
35
36 #ifdef CONFIG_ACPI
37
38 #include <linux/list.h>
39 #include <linux/mod_devicetable.h>
40 #include <linux/dynamic_debug.h>
41 #include <linux/module.h>
42 #include <linux/mutex.h>
43
44 #include <acpi/acpi_bus.h>
45 #include <acpi/acpi_drivers.h>
46 #include <acpi/acpi_numa.h>
47 #include <acpi/acpi_io.h>
48 #include <asm/acpi.h>
49
50 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
51 {
52 return adev ? adev->handle : NULL;
53 }
54
55 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
56 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
57 acpi_fwnode_handle(adev) : NULL)
58 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
59
60 static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
61 {
62 struct fwnode_handle *fwnode;
63
64 fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
65 if (!fwnode)
66 return NULL;
67
68 fwnode->type = FWNODE_ACPI_STATIC;
69
70 return fwnode;
71 }
72
73 static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
74 {
75 if (WARN_ON(!fwnode || fwnode->type != FWNODE_ACPI_STATIC))
76 return;
77
78 kfree(fwnode);
79 }
80
81 /**
82 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
83 * the PCI-defined class-code information
84 *
85 * @_cls : the class, subclass, prog-if triple for this device
86 * @_msk : the class mask for this device
87 *
88 * This macro is used to create a struct acpi_device_id that matches a
89 * specific PCI class. The .id and .driver_data fields will be left
90 * initialized with the default value.
91 */
92 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
93
94 static inline bool has_acpi_companion(struct device *dev)
95 {
96 return is_acpi_device_node(dev->fwnode);
97 }
98
99 static inline void acpi_preset_companion(struct device *dev,
100 struct acpi_device *parent, u64 addr)
101 {
102 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
103 }
104
105 static inline const char *acpi_dev_name(struct acpi_device *adev)
106 {
107 return dev_name(&adev->dev);
108 }
109
110 struct device *acpi_get_first_physical_node(struct acpi_device *adev);
111
112 enum acpi_irq_model_id {
113 ACPI_IRQ_MODEL_PIC = 0,
114 ACPI_IRQ_MODEL_IOAPIC,
115 ACPI_IRQ_MODEL_IOSAPIC,
116 ACPI_IRQ_MODEL_PLATFORM,
117 ACPI_IRQ_MODEL_GIC,
118 ACPI_IRQ_MODEL_COUNT
119 };
120
121 extern enum acpi_irq_model_id acpi_irq_model;
122
123 enum acpi_interrupt_id {
124 ACPI_INTERRUPT_PMI = 1,
125 ACPI_INTERRUPT_INIT,
126 ACPI_INTERRUPT_CPEI,
127 ACPI_INTERRUPT_COUNT
128 };
129
130 #define ACPI_SPACE_MEM 0
131
132 enum acpi_address_range_id {
133 ACPI_ADDRESS_RANGE_MEMORY = 1,
134 ACPI_ADDRESS_RANGE_RESERVED = 2,
135 ACPI_ADDRESS_RANGE_ACPI = 3,
136 ACPI_ADDRESS_RANGE_NVS = 4,
137 ACPI_ADDRESS_RANGE_COUNT
138 };
139
140
141 /* Table Handlers */
142
143 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
144
145 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
146 const unsigned long end);
147
148 /* Debugger support */
149
150 struct acpi_debugger_ops {
151 int (*create_thread)(acpi_osd_exec_callback function, void *context);
152 ssize_t (*write_log)(const char *msg);
153 ssize_t (*read_cmd)(char *buffer, size_t length);
154 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
155 int (*notify_command_complete)(void);
156 };
157
158 struct acpi_debugger {
159 const struct acpi_debugger_ops *ops;
160 struct module *owner;
161 struct mutex lock;
162 };
163
164 #ifdef CONFIG_ACPI_DEBUGGER
165 int __init acpi_debugger_init(void);
166 int acpi_register_debugger(struct module *owner,
167 const struct acpi_debugger_ops *ops);
168 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
169 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
170 ssize_t acpi_debugger_write_log(const char *msg);
171 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
172 int acpi_debugger_wait_command_ready(void);
173 int acpi_debugger_notify_command_complete(void);
174 #else
175 static inline int acpi_debugger_init(void)
176 {
177 return -ENODEV;
178 }
179
180 static inline int acpi_register_debugger(struct module *owner,
181 const struct acpi_debugger_ops *ops)
182 {
183 return -ENODEV;
184 }
185
186 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
187 {
188 }
189
190 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
191 void *context)
192 {
193 return -ENODEV;
194 }
195
196 static inline int acpi_debugger_write_log(const char *msg)
197 {
198 return -ENODEV;
199 }
200
201 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
202 {
203 return -ENODEV;
204 }
205
206 static inline int acpi_debugger_wait_command_ready(void)
207 {
208 return -ENODEV;
209 }
210
211 static inline int acpi_debugger_notify_command_complete(void)
212 {
213 return -ENODEV;
214 }
215 #endif
216
217 #define BAD_MADT_ENTRY(entry, end) ( \
218 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
219 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
220
221 struct acpi_subtable_proc {
222 int id;
223 acpi_tbl_entry_handler handler;
224 int count;
225 };
226
227 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
228 void __acpi_unmap_table(char *map, unsigned long size);
229 int early_acpi_boot_init(void);
230 int acpi_boot_init (void);
231 void acpi_boot_table_init (void);
232 int acpi_mps_check (void);
233 int acpi_numa_init (void);
234
235 int acpi_table_init (void);
236 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
237 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
238 int entry_id,
239 acpi_tbl_entry_handler handler,
240 unsigned int max_entries);
241 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
242 struct acpi_subtable_proc *proc, int proc_num,
243 unsigned int max_entries);
244 int acpi_table_parse_madt(enum acpi_madt_type id,
245 acpi_tbl_entry_handler handler,
246 unsigned int max_entries);
247 int acpi_parse_mcfg (struct acpi_table_header *header);
248 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
249
250 /* the following numa functions are architecture-dependent */
251 void acpi_numa_slit_init (struct acpi_table_slit *slit);
252
253 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
254 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
255 #else
256 static inline void
257 acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa) { }
258 #endif
259
260 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
261
262 #ifdef CONFIG_ARM64
263 void acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa);
264 #else
265 static inline void
266 acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) { }
267 #endif
268
269 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
270
271 #ifndef PHYS_CPUID_INVALID
272 typedef u32 phys_cpuid_t;
273 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
274 #endif
275
276 static inline bool invalid_logical_cpuid(u32 cpuid)
277 {
278 return (int)cpuid < 0;
279 }
280
281 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
282 {
283 return phys_id == PHYS_CPUID_INVALID;
284 }
285
286 /* Validate the processor object's proc_id */
287 bool acpi_duplicate_processor_id(int proc_id);
288
289 #ifdef CONFIG_ACPI_HOTPLUG_CPU
290 /* Arch dependent functions for cpu hotplug support */
291 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
292 int *pcpu);
293 int acpi_unmap_cpu(int cpu);
294 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
295
296 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
297 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
298 #endif
299
300 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
301 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
302 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
303 void acpi_irq_stats_init(void);
304 extern u32 acpi_irq_handled;
305 extern u32 acpi_irq_not_handled;
306 extern unsigned int acpi_sci_irq;
307 extern bool acpi_no_s5;
308 #define INVALID_ACPI_IRQ ((unsigned)-1)
309 static inline bool acpi_sci_irq_valid(void)
310 {
311 return acpi_sci_irq != INVALID_ACPI_IRQ;
312 }
313
314 extern int sbf_port;
315 extern unsigned long acpi_realmode_flags;
316
317 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
318 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
319 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
320
321 void acpi_set_irq_model(enum acpi_irq_model_id model,
322 struct fwnode_handle *fwnode);
323
324 #ifdef CONFIG_X86_IO_APIC
325 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
326 #else
327 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
328 #endif
329 /*
330 * This function undoes the effect of one call to acpi_register_gsi().
331 * If this matches the last registration, any IRQ resources for gsi
332 * are freed.
333 */
334 void acpi_unregister_gsi (u32 gsi);
335
336 struct pci_dev;
337
338 int acpi_pci_irq_enable (struct pci_dev *dev);
339 void acpi_penalize_isa_irq(int irq, int active);
340 bool acpi_isa_irq_available(int irq);
341 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
342 void acpi_pci_irq_disable (struct pci_dev *dev);
343
344 extern int ec_read(u8 addr, u8 *val);
345 extern int ec_write(u8 addr, u8 val);
346 extern int ec_transaction(u8 command,
347 const u8 *wdata, unsigned wdata_len,
348 u8 *rdata, unsigned rdata_len);
349 extern acpi_handle ec_get_handle(void);
350
351 extern bool acpi_is_pnp_device(struct acpi_device *);
352
353 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
354
355 typedef void (*wmi_notify_handler) (u32 value, void *context);
356
357 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
358 u32 method_id,
359 const struct acpi_buffer *in,
360 struct acpi_buffer *out);
361 extern acpi_status wmi_query_block(const char *guid, u8 instance,
362 struct acpi_buffer *out);
363 extern acpi_status wmi_set_block(const char *guid, u8 instance,
364 const struct acpi_buffer *in);
365 extern acpi_status wmi_install_notify_handler(const char *guid,
366 wmi_notify_handler handler, void *data);
367 extern acpi_status wmi_remove_notify_handler(const char *guid);
368 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
369 extern bool wmi_has_guid(const char *guid);
370
371 #endif /* CONFIG_ACPI_WMI */
372
373 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
374 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
375 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
376 #define ACPI_VIDEO_BACKLIGHT 0x0008
377 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
378 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
379 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
380 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
381 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
382 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
383 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
384 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
385
386 extern char acpi_video_backlight_string[];
387 extern long acpi_is_video_device(acpi_handle handle);
388 extern int acpi_blacklisted(void);
389 extern void acpi_osi_setup(char *str);
390 extern bool acpi_osi_is_win8(void);
391
392 #ifdef CONFIG_ACPI_NUMA
393 int acpi_map_pxm_to_online_node(int pxm);
394 int acpi_get_node(acpi_handle handle);
395 #else
396 static inline int acpi_map_pxm_to_online_node(int pxm)
397 {
398 return 0;
399 }
400 static inline int acpi_get_node(acpi_handle handle)
401 {
402 return 0;
403 }
404 #endif
405 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
406
407 extern int pnpacpi_disabled;
408
409 #define PXM_INVAL (-1)
410
411 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
412 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
413 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
414 struct resource_win *win);
415 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
416 struct resource_win *win);
417 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
418 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
419 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
420 struct resource *res);
421
422 void acpi_dev_free_resource_list(struct list_head *list);
423 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
424 int (*preproc)(struct acpi_resource *, void *),
425 void *preproc_data);
426 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
427 unsigned long types);
428
429 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
430 void *arg)
431 {
432 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
433 }
434
435 struct acpi_device *acpi_resource_consumer(struct resource *res);
436
437 int acpi_check_resource_conflict(const struct resource *res);
438
439 int acpi_check_region(resource_size_t start, resource_size_t n,
440 const char *name);
441
442 int acpi_resources_are_enforced(void);
443
444 #ifdef CONFIG_HIBERNATION
445 void __init acpi_no_s4_hw_signature(void);
446 #endif
447
448 #ifdef CONFIG_PM_SLEEP
449 void __init acpi_old_suspend_ordering(void);
450 void __init acpi_nvs_nosave(void);
451 void __init acpi_nvs_nosave_s3(void);
452 #endif /* CONFIG_PM_SLEEP */
453
454 struct acpi_osc_context {
455 char *uuid_str; /* UUID string */
456 int rev;
457 struct acpi_buffer cap; /* list of DWORD capabilities */
458 struct acpi_buffer ret; /* free by caller if success */
459 };
460
461 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
462
463 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
464 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
465 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
466 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
467
468 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
469 #define OSC_QUERY_ENABLE 0x00000001 /* input */
470 #define OSC_REQUEST_ERROR 0x00000002 /* return */
471 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
472 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
473 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
474
475 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
476 #define OSC_SB_PAD_SUPPORT 0x00000001
477 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
478 #define OSC_SB_PR3_SUPPORT 0x00000004
479 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
480 #define OSC_SB_APEI_SUPPORT 0x00000010
481 #define OSC_SB_CPC_SUPPORT 0x00000020
482 #define OSC_SB_CPCV2_SUPPORT 0x00000040
483 #define OSC_SB_PCLPI_SUPPORT 0x00000080
484 #define OSC_SB_OSLPI_SUPPORT 0x00000100
485 #define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
486
487 extern bool osc_sb_apei_support_acked;
488 extern bool osc_pc_lpi_support_confirmed;
489
490 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
491 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
492 #define OSC_PCI_ASPM_SUPPORT 0x00000002
493 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
494 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
495 #define OSC_PCI_MSI_SUPPORT 0x00000010
496 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
497
498 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
499 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
500 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
501 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
502 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
503 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
504 #define OSC_PCI_CONTROL_MASKS 0x0000001f
505
506 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
507 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
508 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
509 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
510 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
511 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
512 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
513 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
514 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
515 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
516
517 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
518 u32 *mask, u32 req);
519
520 /* Enable _OST when all relevant hotplug operations are enabled */
521 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
522 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
523 defined(CONFIG_ACPI_CONTAINER)
524 #define ACPI_HOTPLUG_OST
525 #endif
526
527 /* _OST Source Event Code (OSPM Action) */
528 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
529 #define ACPI_OST_EC_OSPM_EJECT 0x103
530 #define ACPI_OST_EC_OSPM_INSERTION 0x200
531
532 /* _OST General Processing Status Code */
533 #define ACPI_OST_SC_SUCCESS 0x0
534 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
535 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
536
537 /* _OST OS Shutdown Processing (0x100) Status Code */
538 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
539 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
540 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
541 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
542
543 /* _OST Ejection Request (0x3, 0x103) Status Code */
544 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
545 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
546 #define ACPI_OST_SC_DEVICE_BUSY 0x82
547 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
548 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
549
550 /* _OST Insertion Request (0x200) Status Code */
551 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
552 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
553 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
554
555 extern void acpi_early_init(void);
556 extern void acpi_subsystem_init(void);
557
558 extern int acpi_nvs_register(__u64 start, __u64 size);
559
560 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
561 void *data);
562
563 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
564 const struct device *dev);
565
566 extern bool acpi_driver_match_device(struct device *dev,
567 const struct device_driver *drv);
568 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
569 int acpi_device_modalias(struct device *, char *, int);
570 void acpi_walk_dep_device_list(acpi_handle handle);
571
572 struct platform_device *acpi_create_platform_device(struct acpi_device *,
573 struct property_entry *);
574 #define ACPI_PTR(_ptr) (_ptr)
575
576 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
577 {
578 adev->flags.visited = true;
579 }
580
581 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
582 {
583 adev->flags.visited = false;
584 }
585
586 enum acpi_reconfig_event {
587 ACPI_RECONFIG_DEVICE_ADD = 0,
588 ACPI_RECONFIG_DEVICE_REMOVE,
589 };
590
591 int acpi_reconfig_notifier_register(struct notifier_block *nb);
592 int acpi_reconfig_notifier_unregister(struct notifier_block *nb);
593
594 #ifdef CONFIG_ACPI_GTDT
595 int acpi_gtdt_init(struct acpi_table_header *table, int *platform_timer_count);
596 int acpi_gtdt_map_ppi(int type);
597 bool acpi_gtdt_c3stop(int type);
598 int acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem, int *timer_count);
599 #endif
600
601 #else /* !CONFIG_ACPI */
602
603 #define acpi_disabled 1
604
605 #define ACPI_COMPANION(dev) (NULL)
606 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
607 #define ACPI_HANDLE(dev) (NULL)
608 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
609
610 struct fwnode_handle;
611
612 static inline bool acpi_dev_found(const char *hid)
613 {
614 return false;
615 }
616
617 static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
618 {
619 return false;
620 }
621
622 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
623 {
624 return false;
625 }
626
627 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
628 {
629 return false;
630 }
631
632 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
633 {
634 return NULL;
635 }
636
637 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
638 {
639 return false;
640 }
641
642 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
643 {
644 return NULL;
645 }
646
647 static inline bool acpi_data_node_match(struct fwnode_handle *fwnode,
648 const char *name)
649 {
650 return false;
651 }
652
653 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
654 {
655 return NULL;
656 }
657
658 static inline bool has_acpi_companion(struct device *dev)
659 {
660 return false;
661 }
662
663 static inline void acpi_preset_companion(struct device *dev,
664 struct acpi_device *parent, u64 addr)
665 {
666 }
667
668 static inline const char *acpi_dev_name(struct acpi_device *adev)
669 {
670 return NULL;
671 }
672
673 static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev)
674 {
675 return NULL;
676 }
677
678 static inline void acpi_early_init(void) { }
679 static inline void acpi_subsystem_init(void) { }
680
681 static inline int early_acpi_boot_init(void)
682 {
683 return 0;
684 }
685 static inline int acpi_boot_init(void)
686 {
687 return 0;
688 }
689
690 static inline void acpi_boot_table_init(void)
691 {
692 return;
693 }
694
695 static inline int acpi_mps_check(void)
696 {
697 return 0;
698 }
699
700 static inline int acpi_check_resource_conflict(struct resource *res)
701 {
702 return 0;
703 }
704
705 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
706 const char *name)
707 {
708 return 0;
709 }
710
711 struct acpi_table_header;
712 static inline int acpi_table_parse(char *id,
713 int (*handler)(struct acpi_table_header *))
714 {
715 return -ENODEV;
716 }
717
718 static inline int acpi_nvs_register(__u64 start, __u64 size)
719 {
720 return 0;
721 }
722
723 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
724 void *data)
725 {
726 return 0;
727 }
728
729 struct acpi_device_id;
730
731 static inline const struct acpi_device_id *acpi_match_device(
732 const struct acpi_device_id *ids, const struct device *dev)
733 {
734 return NULL;
735 }
736
737 static inline bool acpi_driver_match_device(struct device *dev,
738 const struct device_driver *drv)
739 {
740 return false;
741 }
742
743 static inline union acpi_object *acpi_evaluate_dsm(acpi_handle handle,
744 const guid_t *guid,
745 int rev, int func,
746 union acpi_object *argv4)
747 {
748 return NULL;
749 }
750
751 static inline int acpi_device_uevent_modalias(struct device *dev,
752 struct kobj_uevent_env *env)
753 {
754 return -ENODEV;
755 }
756
757 static inline int acpi_device_modalias(struct device *dev,
758 char *buf, int size)
759 {
760 return -ENODEV;
761 }
762
763 static inline bool acpi_dma_supported(struct acpi_device *adev)
764 {
765 return false;
766 }
767
768 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
769 {
770 return DEV_DMA_NOT_SUPPORTED;
771 }
772
773 static inline int acpi_dma_configure(struct device *dev,
774 enum dev_dma_attr attr)
775 {
776 return 0;
777 }
778
779 static inline void acpi_dma_deconfigure(struct device *dev) { }
780
781 #define ACPI_PTR(_ptr) (NULL)
782
783 static inline void acpi_device_set_enumerated(struct acpi_device *adev)
784 {
785 }
786
787 static inline void acpi_device_clear_enumerated(struct acpi_device *adev)
788 {
789 }
790
791 static inline int acpi_reconfig_notifier_register(struct notifier_block *nb)
792 {
793 return -EINVAL;
794 }
795
796 static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb)
797 {
798 return -EINVAL;
799 }
800
801 static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
802 {
803 return NULL;
804 }
805
806 #endif /* !CONFIG_ACPI */
807
808 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
809 int acpi_ioapic_add(acpi_handle root);
810 #else
811 static inline int acpi_ioapic_add(acpi_handle root) { return 0; }
812 #endif
813
814 #ifdef CONFIG_ACPI
815 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
816 u32 pm1a_ctrl, u32 pm1b_ctrl));
817
818 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
819 u32 pm1a_control, u32 pm1b_control);
820
821 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
822 u32 val_a, u32 val_b));
823
824 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
825 u32 val_a, u32 val_b);
826
827 #ifdef CONFIG_X86
828 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
829 #else
830 static inline void arch_reserve_mem_area(acpi_physical_address addr,
831 size_t size)
832 {
833 }
834 #endif /* CONFIG_X86 */
835 #else
836 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
837 #endif
838
839 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
840 int acpi_dev_runtime_suspend(struct device *dev);
841 int acpi_dev_runtime_resume(struct device *dev);
842 int acpi_subsys_runtime_suspend(struct device *dev);
843 int acpi_subsys_runtime_resume(struct device *dev);
844 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
845 int acpi_dev_pm_attach(struct device *dev, bool power_on);
846 #else
847 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
848 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
849 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
850 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
851 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
852 {
853 return NULL;
854 }
855 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
856 {
857 return -ENODEV;
858 }
859 #endif
860
861 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
862 int acpi_dev_suspend_late(struct device *dev);
863 int acpi_dev_resume_early(struct device *dev);
864 int acpi_subsys_prepare(struct device *dev);
865 void acpi_subsys_complete(struct device *dev);
866 int acpi_subsys_suspend_late(struct device *dev);
867 int acpi_subsys_resume_early(struct device *dev);
868 int acpi_subsys_suspend(struct device *dev);
869 int acpi_subsys_freeze(struct device *dev);
870 #else
871 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
872 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
873 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
874 static inline void acpi_subsys_complete(struct device *dev) {}
875 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
876 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
877 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
878 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
879 #endif
880
881 #ifdef CONFIG_ACPI
882 __printf(3, 4)
883 void acpi_handle_printk(const char *level, acpi_handle handle,
884 const char *fmt, ...);
885 #else /* !CONFIG_ACPI */
886 static inline __printf(3, 4) void
887 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
888 #endif /* !CONFIG_ACPI */
889
890 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
891 __printf(3, 4)
892 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
893 #else
894 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
895 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
896 #endif
897
898 /*
899 * acpi_handle_<level>: Print message with ACPI prefix and object path
900 *
901 * These interfaces acquire the global namespace mutex to obtain an object
902 * path. In interrupt context, it shows the object path as <n/a>.
903 */
904 #define acpi_handle_emerg(handle, fmt, ...) \
905 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
906 #define acpi_handle_alert(handle, fmt, ...) \
907 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
908 #define acpi_handle_crit(handle, fmt, ...) \
909 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
910 #define acpi_handle_err(handle, fmt, ...) \
911 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
912 #define acpi_handle_warn(handle, fmt, ...) \
913 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
914 #define acpi_handle_notice(handle, fmt, ...) \
915 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
916 #define acpi_handle_info(handle, fmt, ...) \
917 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
918
919 #if defined(DEBUG)
920 #define acpi_handle_debug(handle, fmt, ...) \
921 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
922 #else
923 #if defined(CONFIG_DYNAMIC_DEBUG)
924 #define acpi_handle_debug(handle, fmt, ...) \
925 do { \
926 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
927 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
928 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
929 ##__VA_ARGS__); \
930 } while (0)
931 #else
932 #define acpi_handle_debug(handle, fmt, ...) \
933 ({ \
934 if (0) \
935 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
936 0; \
937 })
938 #endif
939 #endif
940
941 struct acpi_gpio_params {
942 unsigned int crs_entry_index;
943 unsigned int line_index;
944 bool active_low;
945 };
946
947 struct acpi_gpio_mapping {
948 const char *name;
949 const struct acpi_gpio_params *data;
950 unsigned int size;
951 };
952
953 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
954 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
955 const struct acpi_gpio_mapping *gpios);
956
957 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
958 {
959 if (adev)
960 adev->driver_gpios = NULL;
961 }
962
963 int devm_acpi_dev_add_driver_gpios(struct device *dev,
964 const struct acpi_gpio_mapping *gpios);
965 void devm_acpi_dev_remove_driver_gpios(struct device *dev);
966
967 bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
968 struct acpi_resource_gpio **agpio);
969 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
970 #else
971 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
972 const struct acpi_gpio_mapping *gpios)
973 {
974 return -ENXIO;
975 }
976 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
977
978 static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
979 const struct acpi_gpio_mapping *gpios)
980 {
981 return -ENXIO;
982 }
983 static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
984
985 static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
986 struct acpi_resource_gpio **agpio)
987 {
988 return false;
989 }
990 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
991 {
992 return -ENXIO;
993 }
994 #endif
995
996 /* Device properties */
997
998 #define MAX_ACPI_REFERENCE_ARGS 8
999 struct acpi_reference_args {
1000 struct acpi_device *adev;
1001 size_t nargs;
1002 u64 args[MAX_ACPI_REFERENCE_ARGS];
1003 };
1004
1005 #ifdef CONFIG_ACPI
1006 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
1007 acpi_object_type type, const union acpi_object **obj);
1008 int __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1009 const char *name, size_t index, size_t num_args,
1010 struct acpi_reference_args *args);
1011
1012 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1013 const char *name, size_t index,
1014 struct acpi_reference_args *args)
1015 {
1016 return __acpi_node_get_property_reference(fwnode, name, index,
1017 MAX_ACPI_REFERENCE_ARGS, args);
1018 }
1019
1020 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
1021 void **valptr);
1022 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
1023 enum dev_prop_type proptype, void *val);
1024 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
1025 enum dev_prop_type proptype, void *val, size_t nval);
1026 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
1027 enum dev_prop_type proptype, void *val, size_t nval);
1028
1029 struct fwnode_handle *acpi_get_next_subnode(struct fwnode_handle *fwnode,
1030 struct fwnode_handle *child);
1031 struct fwnode_handle *acpi_node_get_parent(struct fwnode_handle *fwnode);
1032
1033 struct fwnode_handle *acpi_graph_get_next_endpoint(struct fwnode_handle *fwnode,
1034 struct fwnode_handle *prev);
1035 int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
1036 struct fwnode_handle **remote,
1037 struct fwnode_handle **port,
1038 struct fwnode_handle **endpoint);
1039
1040 struct acpi_probe_entry;
1041 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
1042 struct acpi_probe_entry *);
1043
1044 #define ACPI_TABLE_ID_LEN 5
1045
1046 /**
1047 * struct acpi_probe_entry - boot-time probing entry
1048 * @id: ACPI table name
1049 * @type: Optional subtable type to match
1050 * (if @id contains subtables)
1051 * @subtable_valid: Optional callback to check the validity of
1052 * the subtable
1053 * @probe_table: Callback to the driver being probed when table
1054 * match is successful
1055 * @probe_subtbl: Callback to the driver being probed when table and
1056 * subtable match (and optional callback is successful)
1057 * @driver_data: Sideband data provided back to the driver
1058 */
1059 struct acpi_probe_entry {
1060 __u8 id[ACPI_TABLE_ID_LEN];
1061 __u8 type;
1062 acpi_probe_entry_validate_subtbl subtable_valid;
1063 union {
1064 acpi_tbl_table_handler probe_table;
1065 acpi_tbl_entry_handler probe_subtbl;
1066 };
1067 kernel_ulong_t driver_data;
1068 };
1069
1070 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1071 static const struct acpi_probe_entry __acpi_probe_##name \
1072 __used __section(__##table##_acpi_probe_table) \
1073 = { \
1074 .id = table_id, \
1075 .type = subtable, \
1076 .subtable_valid = valid, \
1077 .probe_table = (acpi_tbl_table_handler)fn, \
1078 .driver_data = data, \
1079 }
1080
1081 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
1082 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
1083
1084 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
1085
1086 #define acpi_probe_device_table(t) \
1087 ({ \
1088 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
1089 ACPI_PROBE_TABLE_END(t); \
1090 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
1091 (&ACPI_PROBE_TABLE_END(t) - \
1092 &ACPI_PROBE_TABLE(t))); \
1093 })
1094 #else
1095 static inline int acpi_dev_get_property(struct acpi_device *adev,
1096 const char *name, acpi_object_type type,
1097 const union acpi_object **obj)
1098 {
1099 return -ENXIO;
1100 }
1101
1102 static inline int
1103 __acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1104 const char *name, size_t index, size_t num_args,
1105 struct acpi_reference_args *args)
1106 {
1107 return -ENXIO;
1108 }
1109
1110 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
1111 const char *name, size_t index,
1112 struct acpi_reference_args *args)
1113 {
1114 return -ENXIO;
1115 }
1116
1117 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
1118 const char *propname,
1119 void **valptr)
1120 {
1121 return -ENXIO;
1122 }
1123
1124 static inline int acpi_dev_prop_get(struct acpi_device *adev,
1125 const char *propname,
1126 void **valptr)
1127 {
1128 return -ENXIO;
1129 }
1130
1131 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
1132 const char *propname,
1133 enum dev_prop_type proptype,
1134 void *val)
1135 {
1136 return -ENXIO;
1137 }
1138
1139 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
1140 const char *propname,
1141 enum dev_prop_type proptype,
1142 void *val, size_t nval)
1143 {
1144 return -ENXIO;
1145 }
1146
1147 static inline int acpi_dev_prop_read(struct acpi_device *adev,
1148 const char *propname,
1149 enum dev_prop_type proptype,
1150 void *val, size_t nval)
1151 {
1152 return -ENXIO;
1153 }
1154
1155 static inline struct fwnode_handle *
1156 acpi_get_next_subnode(struct fwnode_handle *fwnode, struct fwnode_handle *child)
1157 {
1158 return NULL;
1159 }
1160
1161 static inline struct fwnode_handle *
1162 acpi_node_get_parent(struct fwnode_handle *fwnode)
1163 {
1164 return NULL;
1165 }
1166
1167 static inline struct fwnode_handle *
1168 acpi_graph_get_next_endpoint(struct fwnode_handle *fwnode,
1169 struct fwnode_handle *prev)
1170 {
1171 return ERR_PTR(-ENXIO);
1172 }
1173
1174 static inline int
1175 acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
1176 struct fwnode_handle **remote,
1177 struct fwnode_handle **port,
1178 struct fwnode_handle **endpoint)
1179 {
1180 return -ENXIO;
1181 }
1182
1183 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
1184 static const void * __acpi_table_##name[] \
1185 __attribute__((unused)) \
1186 = { (void *) table_id, \
1187 (void *) subtable, \
1188 (void *) valid, \
1189 (void *) fn, \
1190 (void *) data }
1191
1192 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1193 #endif
1194
1195 #ifdef CONFIG_ACPI_TABLE_UPGRADE
1196 void acpi_table_upgrade(void);
1197 #else
1198 static inline void acpi_table_upgrade(void) { }
1199 #endif
1200
1201 #if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG)
1202 extern bool acpi_has_watchdog(void);
1203 #else
1204 static inline bool acpi_has_watchdog(void) { return false; }
1205 #endif
1206
1207 #ifdef CONFIG_ACPI_SPCR_TABLE
1208 int parse_spcr(bool earlycon);
1209 #else
1210 static inline int parse_spcr(bool earlycon) { return 0; }
1211 #endif
1212
1213 #if IS_ENABLED(CONFIG_ACPI_GENERIC_GSI)
1214 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res);
1215 #else
1216 static inline
1217 int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
1218 {
1219 return -EINVAL;
1220 }
1221 #endif
1222
1223 #endif /*_LINUX_ACPI_H*/