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
32 #ifdef CONFIG_ACPI
33
34 #ifndef _LINUX
35 #define _LINUX
36 #endif
37
38 #include <linux/list.h>
39 #include <linux/mod_devicetable.h>
40
41 #include <acpi/acpi.h>
42 #include <acpi/acpi_bus.h>
43 #include <acpi/acpi_drivers.h>
44 #include <acpi/acpi_numa.h>
45 #include <asm/acpi.h>
46
47 enum acpi_irq_model_id {
48 ACPI_IRQ_MODEL_PIC = 0,
49 ACPI_IRQ_MODEL_IOAPIC,
50 ACPI_IRQ_MODEL_IOSAPIC,
51 ACPI_IRQ_MODEL_PLATFORM,
52 ACPI_IRQ_MODEL_COUNT
53 };
54
55 extern enum acpi_irq_model_id acpi_irq_model;
56
57 enum acpi_interrupt_id {
58 ACPI_INTERRUPT_PMI = 1,
59 ACPI_INTERRUPT_INIT,
60 ACPI_INTERRUPT_CPEI,
61 ACPI_INTERRUPT_COUNT
62 };
63
64 #define ACPI_SPACE_MEM 0
65
66 enum acpi_address_range_id {
67 ACPI_ADDRESS_RANGE_MEMORY = 1,
68 ACPI_ADDRESS_RANGE_RESERVED = 2,
69 ACPI_ADDRESS_RANGE_ACPI = 3,
70 ACPI_ADDRESS_RANGE_NVS = 4,
71 ACPI_ADDRESS_RANGE_COUNT
72 };
73
74
75 /* Table Handlers */
76
77 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
78
79 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
80 const unsigned long end);
81
82 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
83 void acpi_initrd_override(void *data, size_t size);
84 #else
acpi_initrd_override(void * data,size_t size)85 static inline void acpi_initrd_override(void *data, size_t size)
86 {
87 }
88 #endif
89
90 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
91 void __acpi_unmap_table(char *map, unsigned long size);
92 int early_acpi_boot_init(void);
93 int acpi_boot_init (void);
94 void acpi_boot_table_init (void);
95 int acpi_mps_check (void);
96 int acpi_numa_init (void);
97
98 int acpi_table_init (void);
99 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
100 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
101 int entry_id,
102 acpi_tbl_entry_handler handler,
103 unsigned int max_entries);
104 int acpi_table_parse_madt(enum acpi_madt_type id,
105 acpi_tbl_entry_handler handler,
106 unsigned int max_entries);
107 int acpi_parse_mcfg (struct acpi_table_header *header);
108 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
109
110 /* the following four functions are architecture-dependent */
111 void acpi_numa_slit_init (struct acpi_table_slit *slit);
112 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
113 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
114 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
115 void acpi_numa_arch_fixup(void);
116
117 #ifdef CONFIG_ACPI_HOTPLUG_CPU
118 /* Arch dependent functions for cpu hotplug support */
119 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
120 int acpi_unmap_lsapic(int cpu);
121 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
122
123 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
124 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
125 void acpi_irq_stats_init(void);
126 extern u32 acpi_irq_handled;
127 extern u32 acpi_irq_not_handled;
128
129 extern int sbf_port;
130 extern unsigned long acpi_realmode_flags;
131
132 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
133 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
134 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
135
136 #ifdef CONFIG_X86_IO_APIC
137 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
138 #else
139 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
140 #endif
141 /*
142 * This function undoes the effect of one call to acpi_register_gsi().
143 * If this matches the last registration, any IRQ resources for gsi
144 * are freed.
145 */
146 void acpi_unregister_gsi (u32 gsi);
147
148 struct pci_dev;
149
150 int acpi_pci_irq_enable (struct pci_dev *dev);
151 void acpi_penalize_isa_irq(int irq, int active);
152
153 void acpi_pci_irq_disable (struct pci_dev *dev);
154
155 extern int ec_read(u8 addr, u8 *val);
156 extern int ec_write(u8 addr, u8 val);
157 extern int ec_transaction(u8 command,
158 const u8 *wdata, unsigned wdata_len,
159 u8 *rdata, unsigned rdata_len);
160 extern acpi_handle ec_get_handle(void);
161
162 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
163
164 typedef void (*wmi_notify_handler) (u32 value, void *context);
165
166 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
167 u32 method_id,
168 const struct acpi_buffer *in,
169 struct acpi_buffer *out);
170 extern acpi_status wmi_query_block(const char *guid, u8 instance,
171 struct acpi_buffer *out);
172 extern acpi_status wmi_set_block(const char *guid, u8 instance,
173 const struct acpi_buffer *in);
174 extern acpi_status wmi_install_notify_handler(const char *guid,
175 wmi_notify_handler handler, void *data);
176 extern acpi_status wmi_remove_notify_handler(const char *guid);
177 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
178 extern bool wmi_has_guid(const char *guid);
179
180 #endif /* CONFIG_ACPI_WMI */
181
182 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
183 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
184 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
185 #define ACPI_VIDEO_BACKLIGHT 0x0008
186 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
187 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
188 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
189 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
190 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
191 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
192 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
193 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
194
195 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
196
197 extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
198 extern long acpi_is_video_device(acpi_handle handle);
199 extern void acpi_video_dmi_promote_vendor(void);
200 extern void acpi_video_dmi_demote_vendor(void);
201 extern int acpi_video_backlight_support(void);
202 extern int acpi_video_display_switch_support(void);
203
204 #else
205
acpi_video_get_capabilities(acpi_handle graphics_dev_handle)206 static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
207 {
208 return 0;
209 }
210
acpi_is_video_device(acpi_handle handle)211 static inline long acpi_is_video_device(acpi_handle handle)
212 {
213 return 0;
214 }
215
acpi_video_dmi_promote_vendor(void)216 static inline void acpi_video_dmi_promote_vendor(void)
217 {
218 }
219
acpi_video_dmi_demote_vendor(void)220 static inline void acpi_video_dmi_demote_vendor(void)
221 {
222 }
223
acpi_video_backlight_support(void)224 static inline int acpi_video_backlight_support(void)
225 {
226 return 0;
227 }
228
acpi_video_display_switch_support(void)229 static inline int acpi_video_display_switch_support(void)
230 {
231 return 0;
232 }
233
234 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
235
236 extern int acpi_blacklisted(void);
237 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
238 extern void acpi_osi_setup(char *str);
239
240 #ifdef CONFIG_ACPI_NUMA
241 int acpi_get_pxm(acpi_handle handle);
242 int acpi_get_node(acpi_handle *handle);
243 #else
acpi_get_pxm(acpi_handle handle)244 static inline int acpi_get_pxm(acpi_handle handle)
245 {
246 return 0;
247 }
acpi_get_node(acpi_handle * handle)248 static inline int acpi_get_node(acpi_handle *handle)
249 {
250 return 0;
251 }
252 #endif
253 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
254
255 extern int pnpacpi_disabled;
256
257 #define PXM_INVAL (-1)
258
259 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
260 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
261 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
262 struct resource *res);
263 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
264 struct resource *res);
265 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
266 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
267 struct resource *res);
268
269 struct resource_list_entry {
270 struct list_head node;
271 struct resource res;
272 };
273
274 void acpi_dev_free_resource_list(struct list_head *list);
275 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
276 int (*preproc)(struct acpi_resource *, void *),
277 void *preproc_data);
278
279 int acpi_check_resource_conflict(const struct resource *res);
280
281 int acpi_check_region(resource_size_t start, resource_size_t n,
282 const char *name);
283
284 int acpi_resources_are_enforced(void);
285
286 #ifdef CONFIG_HIBERNATION
287 void __init acpi_no_s4_hw_signature(void);
288 #endif
289
290 #ifdef CONFIG_PM_SLEEP
291 void __init acpi_old_suspend_ordering(void);
292 void __init acpi_nvs_nosave(void);
293 void __init acpi_nvs_nosave_s3(void);
294 #endif /* CONFIG_PM_SLEEP */
295
296 struct acpi_osc_context {
297 char *uuid_str; /* uuid string */
298 int rev;
299 struct acpi_buffer cap; /* arg2/arg3 */
300 struct acpi_buffer ret; /* free by caller if success */
301 };
302
303 #define OSC_QUERY_TYPE 0
304 #define OSC_SUPPORT_TYPE 1
305 #define OSC_CONTROL_TYPE 2
306
307 /* _OSC DW0 Definition */
308 #define OSC_QUERY_ENABLE 1
309 #define OSC_REQUEST_ERROR 2
310 #define OSC_INVALID_UUID_ERROR 4
311 #define OSC_INVALID_REVISION_ERROR 8
312 #define OSC_CAPABILITIES_MASK_ERROR 16
313
314 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
315
316 /* platform-wide _OSC bits */
317 #define OSC_SB_PAD_SUPPORT 1
318 #define OSC_SB_PPC_OST_SUPPORT 2
319 #define OSC_SB_PR3_SUPPORT 4
320 #define OSC_SB_HOTPLUG_OST_SUPPORT 8
321 #define OSC_SB_APEI_SUPPORT 16
322
323 extern bool osc_sb_apei_support_acked;
324
325 /* PCI defined _OSC bits */
326 /* _OSC DW1 Definition (OS Support Fields) */
327 #define OSC_EXT_PCI_CONFIG_SUPPORT 1
328 #define OSC_ACTIVE_STATE_PWR_SUPPORT 2
329 #define OSC_CLOCK_PWR_CAPABILITY_SUPPORT 4
330 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 8
331 #define OSC_MSI_SUPPORT 16
332 #define OSC_PCI_SUPPORT_MASKS 0x1f
333
334 /* _OSC DW1 Definition (OS Control Fields) */
335 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 1
336 #define OSC_SHPC_NATIVE_HP_CONTROL 2
337 #define OSC_PCI_EXPRESS_PME_CONTROL 4
338 #define OSC_PCI_EXPRESS_AER_CONTROL 8
339 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL 16
340
341 #define OSC_PCI_CONTROL_MASKS (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | \
342 OSC_SHPC_NATIVE_HP_CONTROL | \
343 OSC_PCI_EXPRESS_PME_CONTROL | \
344 OSC_PCI_EXPRESS_AER_CONTROL | \
345 OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
346
347 #define OSC_PCI_NATIVE_HOTPLUG (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | \
348 OSC_SHPC_NATIVE_HP_CONTROL)
349
350 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
351 u32 *mask, u32 req);
352
353 /* Enable _OST when all relevant hotplug operations are enabled */
354 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
355 (defined(CONFIG_ACPI_HOTPLUG_MEMORY) || \
356 defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) && \
357 defined(CONFIG_ACPI_CONTAINER)
358 #define ACPI_HOTPLUG_OST
359 #endif
360
361 /* _OST Source Event Code (OSPM Action) */
362 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
363 #define ACPI_OST_EC_OSPM_EJECT 0x103
364 #define ACPI_OST_EC_OSPM_INSERTION 0x200
365
366 /* _OST General Processing Status Code */
367 #define ACPI_OST_SC_SUCCESS 0x0
368 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
369 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
370
371 /* _OST OS Shutdown Processing (0x100) Status Code */
372 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
373 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
374 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
375 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
376
377 /* _OST Ejection Request (0x3, 0x103) Status Code */
378 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
379 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
380 #define ACPI_OST_SC_DEVICE_BUSY 0x82
381 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
382 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
383
384 /* _OST Insertion Request (0x200) Status Code */
385 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
386 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
387 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
388
389 extern void acpi_early_init(void);
390
391 extern int acpi_nvs_register(__u64 start, __u64 size);
392
393 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
394 void *data);
395
396 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
397 const struct device *dev);
398
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)399 static inline bool acpi_driver_match_device(struct device *dev,
400 const struct device_driver *drv)
401 {
402 return !!acpi_match_device(drv->acpi_match_table, dev);
403 }
404
405 #define ACPI_PTR(_ptr) (_ptr)
406
407 #else /* !CONFIG_ACPI */
408
409 #define acpi_disabled 1
410
acpi_early_init(void)411 static inline void acpi_early_init(void) { }
412
early_acpi_boot_init(void)413 static inline int early_acpi_boot_init(void)
414 {
415 return 0;
416 }
acpi_boot_init(void)417 static inline int acpi_boot_init(void)
418 {
419 return 0;
420 }
421
acpi_boot_table_init(void)422 static inline void acpi_boot_table_init(void)
423 {
424 return;
425 }
426
acpi_mps_check(void)427 static inline int acpi_mps_check(void)
428 {
429 return 0;
430 }
431
acpi_check_resource_conflict(struct resource * res)432 static inline int acpi_check_resource_conflict(struct resource *res)
433 {
434 return 0;
435 }
436
acpi_check_region(resource_size_t start,resource_size_t n,const char * name)437 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
438 const char *name)
439 {
440 return 0;
441 }
442
443 struct acpi_table_header;
acpi_table_parse(char * id,int (* handler)(struct acpi_table_header *))444 static inline int acpi_table_parse(char *id,
445 int (*handler)(struct acpi_table_header *))
446 {
447 return -1;
448 }
449
acpi_nvs_register(__u64 start,__u64 size)450 static inline int acpi_nvs_register(__u64 start, __u64 size)
451 {
452 return 0;
453 }
454
acpi_nvs_for_each_region(int (* func)(__u64,__u64,void *),void * data)455 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
456 void *data)
457 {
458 return 0;
459 }
460
461 struct acpi_device_id;
462
acpi_match_device(const struct acpi_device_id * ids,const struct device * dev)463 static inline const struct acpi_device_id *acpi_match_device(
464 const struct acpi_device_id *ids, const struct device *dev)
465 {
466 return NULL;
467 }
468
acpi_driver_match_device(struct device * dev,const struct device_driver * drv)469 static inline bool acpi_driver_match_device(struct device *dev,
470 const struct device_driver *drv)
471 {
472 return false;
473 }
474
475 #define ACPI_PTR(_ptr) (NULL)
476
477 #endif /* !CONFIG_ACPI */
478
479 #ifdef CONFIG_ACPI
480 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
481 u32 pm1a_ctrl, u32 pm1b_ctrl));
482
483 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
484 u32 pm1a_control, u32 pm1b_control);
485 #ifdef CONFIG_X86
486 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
487 #else
arch_reserve_mem_area(acpi_physical_address addr,size_t size)488 static inline void arch_reserve_mem_area(acpi_physical_address addr,
489 size_t size)
490 {
491 }
492 #endif /* CONFIG_X86 */
493 #else
494 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
495 #endif
496
497 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
498 int acpi_dev_runtime_suspend(struct device *dev);
499 int acpi_dev_runtime_resume(struct device *dev);
500 int acpi_subsys_runtime_suspend(struct device *dev);
501 int acpi_subsys_runtime_resume(struct device *dev);
502 #else
acpi_dev_runtime_suspend(struct device * dev)503 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
acpi_dev_runtime_resume(struct device * dev)504 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
acpi_subsys_runtime_suspend(struct device * dev)505 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
acpi_subsys_runtime_resume(struct device * dev)506 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
507 #endif
508
509 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
510 int acpi_dev_suspend_late(struct device *dev);
511 int acpi_dev_resume_early(struct device *dev);
512 int acpi_subsys_prepare(struct device *dev);
513 int acpi_subsys_suspend_late(struct device *dev);
514 int acpi_subsys_resume_early(struct device *dev);
515 #else
acpi_dev_suspend_late(struct device * dev)516 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
acpi_dev_resume_early(struct device * dev)517 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
acpi_subsys_prepare(struct device * dev)518 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
acpi_subsys_suspend_late(struct device * dev)519 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
acpi_subsys_resume_early(struct device * dev)520 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
521 #endif
522
523 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
524 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
525 int acpi_dev_pm_attach(struct device *dev, bool power_on);
526 void acpi_dev_pm_detach(struct device *dev, bool power_off);
527 #else
acpi_dev_pm_get_node(struct device * dev)528 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
529 {
530 return NULL;
531 }
acpi_dev_pm_attach(struct device * dev,bool power_on)532 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
533 {
534 return -ENODEV;
535 }
acpi_dev_pm_detach(struct device * dev,bool power_off)536 static inline void acpi_dev_pm_detach(struct device *dev, bool power_off) {}
537 #endif
538
539 #ifdef CONFIG_ACPI
540 __printf(3, 4)
541 void acpi_handle_printk(const char *level, acpi_handle handle,
542 const char *fmt, ...);
543 #else /* !CONFIG_ACPI */
544 static inline __printf(3, 4) void
acpi_handle_printk(const char * level,void * handle,const char * fmt,...)545 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
546 #endif /* !CONFIG_ACPI */
547
548 /*
549 * acpi_handle_<level>: Print message with ACPI prefix and object path
550 *
551 * These interfaces acquire the global namespace mutex to obtain an object
552 * path. In interrupt context, it shows the object path as <n/a>.
553 */
554 #define acpi_handle_emerg(handle, fmt, ...) \
555 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
556 #define acpi_handle_alert(handle, fmt, ...) \
557 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
558 #define acpi_handle_crit(handle, fmt, ...) \
559 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
560 #define acpi_handle_err(handle, fmt, ...) \
561 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
562 #define acpi_handle_warn(handle, fmt, ...) \
563 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
564 #define acpi_handle_notice(handle, fmt, ...) \
565 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
566 #define acpi_handle_info(handle, fmt, ...) \
567 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
568
569 /* REVISIT: Support CONFIG_DYNAMIC_DEBUG when necessary */
570 #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
571 #define acpi_handle_debug(handle, fmt, ...) \
572 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
573 #else
574 #define acpi_handle_debug(handle, fmt, ...) \
575 ({ \
576 if (0) \
577 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
578 0; \
579 })
580 #endif
581
582 #endif /*_LINUX_ACPI_H*/
583