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