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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 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24
25 #ifndef _LINUX_ACPI_H
26 #define _LINUX_ACPI_H
27
28 #include <linux/errno.h>
29 #include <linux/ioport.h> /* for struct resource */
30 #include <linux/device.h>
31 #include <linux/property.h>
32
33 #ifndef _LINUX
34 #define _LINUX
35 #endif
36 #include <acpi/acpi.h>
37
38 #ifdef CONFIG_ACPI
39
40 #include <linux/list.h>
41 #include <linux/mod_devicetable.h>
42 #include <linux/dynamic_debug.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) ((dev)->acpi_node.companion)
56 #define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev)
57 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
58
59 static inline void acpi_preset_companion(struct device *dev,
60 struct acpi_device *parent, u64 addr)
61 {
62 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
63 }
64
65 static inline const char *acpi_dev_name(struct acpi_device *adev)
66 {
67 return dev_name(&adev->dev);
68 }
69
70 enum acpi_irq_model_id {
71 ACPI_IRQ_MODEL_PIC = 0,
72 ACPI_IRQ_MODEL_IOAPIC,
73 ACPI_IRQ_MODEL_IOSAPIC,
74 ACPI_IRQ_MODEL_PLATFORM,
75 ACPI_IRQ_MODEL_COUNT
76 };
77
78 extern enum acpi_irq_model_id acpi_irq_model;
79
80 enum acpi_interrupt_id {
81 ACPI_INTERRUPT_PMI = 1,
82 ACPI_INTERRUPT_INIT,
83 ACPI_INTERRUPT_CPEI,
84 ACPI_INTERRUPT_COUNT
85 };
86
87 #define ACPI_SPACE_MEM 0
88
89 enum acpi_address_range_id {
90 ACPI_ADDRESS_RANGE_MEMORY = 1,
91 ACPI_ADDRESS_RANGE_RESERVED = 2,
92 ACPI_ADDRESS_RANGE_ACPI = 3,
93 ACPI_ADDRESS_RANGE_NVS = 4,
94 ACPI_ADDRESS_RANGE_COUNT
95 };
96
97
98 /* Table Handlers */
99
100 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
101
102 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
103 const unsigned long end);
104
105 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
106 void acpi_initrd_override(void *data, size_t size);
107 #else
108 static inline void acpi_initrd_override(void *data, size_t size)
109 {
110 }
111 #endif
112
113 #define BAD_MADT_ENTRY(entry, end) ( \
114 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
115 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
116
117 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
118 void __acpi_unmap_table(char *map, unsigned long size);
119 int early_acpi_boot_init(void);
120 int acpi_boot_init (void);
121 void acpi_boot_table_init (void);
122 int acpi_mps_check (void);
123 int acpi_numa_init (void);
124
125 int acpi_table_init (void);
126 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
127 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
128 int entry_id,
129 acpi_tbl_entry_handler handler,
130 unsigned int max_entries);
131 int acpi_table_parse_madt(enum acpi_madt_type id,
132 acpi_tbl_entry_handler handler,
133 unsigned int max_entries);
134 int acpi_parse_mcfg (struct acpi_table_header *header);
135 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
136
137 /* the following four functions are architecture-dependent */
138 void acpi_numa_slit_init (struct acpi_table_slit *slit);
139 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
140 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
141 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
142 void acpi_numa_arch_fixup(void);
143
144 #ifdef CONFIG_ACPI_HOTPLUG_CPU
145 /* Arch dependent functions for cpu hotplug support */
146 int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
147 int acpi_unmap_lsapic(int cpu);
148 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
149
150 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
151 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
152 void acpi_irq_stats_init(void);
153 extern u32 acpi_irq_handled;
154 extern u32 acpi_irq_not_handled;
155
156 extern int sbf_port;
157 extern unsigned long acpi_realmode_flags;
158
159 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
160 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
161 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
162
163 #ifdef CONFIG_X86_IO_APIC
164 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
165 #else
166 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
167 #endif
168 /*
169 * This function undoes the effect of one call to acpi_register_gsi().
170 * If this matches the last registration, any IRQ resources for gsi
171 * are freed.
172 */
173 void acpi_unregister_gsi (u32 gsi);
174
175 struct pci_dev;
176
177 int acpi_pci_irq_enable (struct pci_dev *dev);
178 void acpi_penalize_isa_irq(int irq, int active);
179
180 void acpi_pci_irq_disable (struct pci_dev *dev);
181
182 extern int ec_read(u8 addr, u8 *val);
183 extern int ec_write(u8 addr, u8 val);
184 extern int ec_transaction(u8 command,
185 const u8 *wdata, unsigned wdata_len,
186 u8 *rdata, unsigned rdata_len);
187 extern acpi_handle ec_get_handle(void);
188
189 extern bool acpi_is_pnp_device(struct acpi_device *);
190
191 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
192
193 typedef void (*wmi_notify_handler) (u32 value, void *context);
194
195 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
196 u32 method_id,
197 const struct acpi_buffer *in,
198 struct acpi_buffer *out);
199 extern acpi_status wmi_query_block(const char *guid, u8 instance,
200 struct acpi_buffer *out);
201 extern acpi_status wmi_set_block(const char *guid, u8 instance,
202 const struct acpi_buffer *in);
203 extern acpi_status wmi_install_notify_handler(const char *guid,
204 wmi_notify_handler handler, void *data);
205 extern acpi_status wmi_remove_notify_handler(const char *guid);
206 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
207 extern bool wmi_has_guid(const char *guid);
208
209 #endif /* CONFIG_ACPI_WMI */
210
211 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
212 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
213 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
214 #define ACPI_VIDEO_BACKLIGHT 0x0008
215 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
216 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
217 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
218 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
219 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
220 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
221 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
222 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
223
224 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
225
226 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
227 extern long acpi_is_video_device(acpi_handle handle);
228 extern void acpi_video_dmi_promote_vendor(void);
229 extern void acpi_video_dmi_demote_vendor(void);
230 extern int acpi_video_backlight_support(void);
231 extern int acpi_video_display_switch_support(void);
232
233 #else
234
235 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
236 {
237 return 0;
238 }
239
240 static inline long acpi_is_video_device(acpi_handle handle)
241 {
242 return 0;
243 }
244
245 static inline void acpi_video_dmi_promote_vendor(void)
246 {
247 }
248
249 static inline void acpi_video_dmi_demote_vendor(void)
250 {
251 }
252
253 static inline int acpi_video_backlight_support(void)
254 {
255 return 0;
256 }
257
258 static inline int acpi_video_display_switch_support(void)
259 {
260 return 0;
261 }
262
263 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
264
265 extern int acpi_blacklisted(void);
266 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
267 extern void acpi_osi_setup(char *str);
268
269 #ifdef CONFIG_ACPI_NUMA
270 int acpi_get_node(acpi_handle handle);
271 #else
272 static inline int acpi_get_node(acpi_handle handle)
273 {
274 return 0;
275 }
276 #endif
277 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
278
279 extern int pnpacpi_disabled;
280
281 #define PXM_INVAL (-1)
282
283 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
284 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
285 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
286 struct resource *res);
287 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
288 struct resource *res);
289 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
290 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
291 struct resource *res);
292
293 struct resource_list_entry {
294 struct list_head node;
295 struct resource res;
296 };
297
298 void acpi_dev_free_resource_list(struct list_head *list);
299 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
300 int (*preproc)(struct acpi_resource *, void *),
301 void *preproc_data);
302
303 int acpi_check_resource_conflict(const struct resource *res);
304
305 int acpi_check_region(resource_size_t start, resource_size_t n,
306 const char *name);
307
308 int acpi_resources_are_enforced(void);
309
310 #ifdef CONFIG_HIBERNATION
311 void __init acpi_no_s4_hw_signature(void);
312 #endif
313
314 #ifdef CONFIG_PM_SLEEP
315 void __init acpi_old_suspend_ordering(void);
316 void __init acpi_nvs_nosave(void);
317 void __init acpi_nvs_nosave_s3(void);
318 #endif /* CONFIG_PM_SLEEP */
319
320 struct acpi_osc_context {
321 char *uuid_str; /* UUID string */
322 int rev;
323 struct acpi_buffer cap; /* list of DWORD capabilities */
324 struct acpi_buffer ret; /* free by caller if success */
325 };
326
327 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
328 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
329
330 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
331 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
332 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
333 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
334
335 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
336 #define OSC_QUERY_ENABLE 0x00000001 /* input */
337 #define OSC_REQUEST_ERROR 0x00000002 /* return */
338 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
339 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
340 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
341
342 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
343 #define OSC_SB_PAD_SUPPORT 0x00000001
344 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
345 #define OSC_SB_PR3_SUPPORT 0x00000004
346 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
347 #define OSC_SB_APEI_SUPPORT 0x00000010
348 #define OSC_SB_CPC_SUPPORT 0x00000020
349
350 extern bool osc_sb_apei_support_acked;
351
352 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
353 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
354 #define OSC_PCI_ASPM_SUPPORT 0x00000002
355 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
356 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
357 #define OSC_PCI_MSI_SUPPORT 0x00000010
358 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
359
360 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
361 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
362 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
363 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
364 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
365 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
366 #define OSC_PCI_CONTROL_MASKS 0x0000001f
367
368 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
369 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
370 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
371 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
372 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
373 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
374 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
375 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
376 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
377 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
378
379 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
380 u32 *mask, u32 req);
381
382 /* Enable _OST when all relevant hotplug operations are enabled */
383 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
384 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
385 defined(CONFIG_ACPI_CONTAINER)
386 #define ACPI_HOTPLUG_OST
387 #endif
388
389 /* _OST Source Event Code (OSPM Action) */
390 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
391 #define ACPI_OST_EC_OSPM_EJECT 0x103
392 #define ACPI_OST_EC_OSPM_INSERTION 0x200
393
394 /* _OST General Processing Status Code */
395 #define ACPI_OST_SC_SUCCESS 0x0
396 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
397 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
398
399 /* _OST OS Shutdown Processing (0x100) Status Code */
400 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
401 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
402 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
403 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
404
405 /* _OST Ejection Request (0x3, 0x103) Status Code */
406 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
407 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
408 #define ACPI_OST_SC_DEVICE_BUSY 0x82
409 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
410 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
411
412 /* _OST Insertion Request (0x200) Status Code */
413 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
414 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
415 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
416
417 extern void acpi_early_init(void);
418
419 extern int acpi_nvs_register(__u64 start, __u64 size);
420
421 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
422 void *data);
423
424 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
425 const struct device *dev);
426
427 extern bool acpi_driver_match_device(struct device *dev,
428 const struct device_driver *drv);
429 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
430 int acpi_device_modalias(struct device *, char *, int);
431
432 struct platform_device *acpi_create_platform_device(struct acpi_device *);
433 #define ACPI_PTR(_ptr) (_ptr)
434
435 #else /* !CONFIG_ACPI */
436
437 #define acpi_disabled 1
438
439 #define ACPI_COMPANION(dev) (NULL)
440 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
441 #define ACPI_HANDLE(dev) (NULL)
442
443 static inline const char *acpi_dev_name(struct acpi_device *adev)
444 {
445 return NULL;
446 }
447
448 static inline void acpi_early_init(void) { }
449
450 static inline int early_acpi_boot_init(void)
451 {
452 return 0;
453 }
454 static inline int acpi_boot_init(void)
455 {
456 return 0;
457 }
458
459 static inline void acpi_boot_table_init(void)
460 {
461 return;
462 }
463
464 static inline int acpi_mps_check(void)
465 {
466 return 0;
467 }
468
469 static inline int acpi_check_resource_conflict(struct resource *res)
470 {
471 return 0;
472 }
473
474 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
475 const char *name)
476 {
477 return 0;
478 }
479
480 struct acpi_table_header;
481 static inline int acpi_table_parse(char *id,
482 int (*handler)(struct acpi_table_header *))
483 {
484 return -ENODEV;
485 }
486
487 static inline int acpi_nvs_register(__u64 start, __u64 size)
488 {
489 return 0;
490 }
491
492 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
493 void *data)
494 {
495 return 0;
496 }
497
498 struct acpi_device_id;
499
500 static inline const struct acpi_device_id *acpi_match_device(
501 const struct acpi_device_id *ids, const struct device *dev)
502 {
503 return NULL;
504 }
505
506 static inline bool acpi_driver_match_device(struct device *dev,
507 const struct device_driver *drv)
508 {
509 return false;
510 }
511
512 static inline int acpi_device_uevent_modalias(struct device *dev,
513 struct kobj_uevent_env *env)
514 {
515 return -ENODEV;
516 }
517
518 static inline int acpi_device_modalias(struct device *dev,
519 char *buf, int size)
520 {
521 return -ENODEV;
522 }
523
524 #define ACPI_PTR(_ptr) (NULL)
525
526 #endif /* !CONFIG_ACPI */
527
528 #ifdef CONFIG_ACPI
529 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
530 u32 pm1a_ctrl, u32 pm1b_ctrl));
531
532 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
533 u32 pm1a_control, u32 pm1b_control);
534
535 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
536 u32 val_a, u32 val_b));
537
538 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
539 u32 val_a, u32 val_b);
540
541 #ifdef CONFIG_X86
542 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
543 #else
544 static inline void arch_reserve_mem_area(acpi_physical_address addr,
545 size_t size)
546 {
547 }
548 #endif /* CONFIG_X86 */
549 #else
550 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
551 #endif
552
553 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
554 int acpi_dev_runtime_suspend(struct device *dev);
555 int acpi_dev_runtime_resume(struct device *dev);
556 int acpi_subsys_runtime_suspend(struct device *dev);
557 int acpi_subsys_runtime_resume(struct device *dev);
558 #else
559 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
560 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
561 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
562 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
563 #endif
564
565 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
566 int acpi_dev_suspend_late(struct device *dev);
567 int acpi_dev_resume_early(struct device *dev);
568 int acpi_subsys_prepare(struct device *dev);
569 void acpi_subsys_complete(struct device *dev);
570 int acpi_subsys_suspend_late(struct device *dev);
571 int acpi_subsys_resume_early(struct device *dev);
572 int acpi_subsys_suspend(struct device *dev);
573 int acpi_subsys_freeze(struct device *dev);
574 #else
575 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
576 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
577 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
578 static inline void acpi_subsys_complete(struct device *dev) {}
579 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
580 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
581 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
582 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
583 #endif
584
585 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
586 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
587 int acpi_dev_pm_attach(struct device *dev, bool power_on);
588 #else
589 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
590 {
591 return NULL;
592 }
593 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
594 {
595 return -ENODEV;
596 }
597 #endif
598
599 #ifdef CONFIG_ACPI
600 __printf(3, 4)
601 void acpi_handle_printk(const char *level, acpi_handle handle,
602 const char *fmt, ...);
603 #else /* !CONFIG_ACPI */
604 static inline __printf(3, 4) void
605 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
606 #endif /* !CONFIG_ACPI */
607
608 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
609 __printf(3, 4)
610 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
611 #else
612 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
613 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
614 #endif
615
616 /*
617 * acpi_handle_<level>: Print message with ACPI prefix and object path
618 *
619 * These interfaces acquire the global namespace mutex to obtain an object
620 * path. In interrupt context, it shows the object path as <n/a>.
621 */
622 #define acpi_handle_emerg(handle, fmt, ...) \
623 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
624 #define acpi_handle_alert(handle, fmt, ...) \
625 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
626 #define acpi_handle_crit(handle, fmt, ...) \
627 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
628 #define acpi_handle_err(handle, fmt, ...) \
629 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
630 #define acpi_handle_warn(handle, fmt, ...) \
631 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
632 #define acpi_handle_notice(handle, fmt, ...) \
633 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
634 #define acpi_handle_info(handle, fmt, ...) \
635 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
636
637 #if defined(DEBUG)
638 #define acpi_handle_debug(handle, fmt, ...) \
639 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
640 #else
641 #if defined(CONFIG_DYNAMIC_DEBUG)
642 #define acpi_handle_debug(handle, fmt, ...) \
643 do { \
644 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
645 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
646 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
647 ##__VA_ARGS__); \
648 } while (0)
649 #else
650 #define acpi_handle_debug(handle, fmt, ...) \
651 ({ \
652 if (0) \
653 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
654 0; \
655 })
656 #endif
657 #endif
658
659 /* Device properties */
660
661 #define MAX_ACPI_REFERENCE_ARGS 8
662 struct acpi_reference_args {
663 struct acpi_device *adev;
664 size_t nargs;
665 u64 args[MAX_ACPI_REFERENCE_ARGS];
666 };
667
668 #ifdef CONFIG_ACPI
669 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
670 acpi_object_type type, const union acpi_object **obj);
671 int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
672 acpi_object_type type,
673 const union acpi_object **obj);
674 int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
675 const char *cells_name, size_t index,
676 struct acpi_reference_args *args);
677
678 int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
679 void **valptr);
680 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
681 enum dev_prop_type proptype, void *val);
682 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
683 enum dev_prop_type proptype, void *val, size_t nval);
684 #else
685 static inline int acpi_dev_get_property(struct acpi_device *adev,
686 const char *name, acpi_object_type type,
687 const union acpi_object **obj)
688 {
689 return -ENXIO;
690 }
691 static inline int acpi_dev_get_property_array(struct acpi_device *adev,
692 const char *name,
693 acpi_object_type type,
694 const union acpi_object **obj)
695 {
696 return -ENXIO;
697 }
698 static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
699 const char *name, const char *cells_name,
700 size_t index, struct acpi_reference_args *args)
701 {
702 return -ENXIO;
703 }
704
705 static inline int acpi_dev_prop_get(struct acpi_device *adev,
706 const char *propname,
707 void **valptr)
708 {
709 return -ENXIO;
710 }
711
712 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
713 const char *propname,
714 enum dev_prop_type proptype,
715 void *val)
716 {
717 return -ENXIO;
718 }
719
720 static inline int acpi_dev_prop_read(struct acpi_device *adev,
721 const char *propname,
722 enum dev_prop_type proptype,
723 void *val, size_t nval)
724 {
725 return -ENXIO;
726 }
727
728 #endif
729
730 #endif /*_LINUX_ACPI_H*/
Linux kernel - Deliverables
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