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Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next
[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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 */
20
21 #ifndef _LINUX_ACPI_H
22 #define _LINUX_ACPI_H
23
24 #include <linux/errno.h>
25 #include <linux/ioport.h> /* for struct resource */
26 #include <linux/resource_ext.h>
27 #include <linux/device.h>
28 #include <linux/property.h>
29
30 #ifndef _LINUX
31 #define _LINUX
32 #endif
33 #include <acpi/acpi.h>
34
35 #ifdef CONFIG_ACPI
36
37 #include <linux/list.h>
38 #include <linux/mod_devicetable.h>
39 #include <linux/dynamic_debug.h>
40 #include <linux/module.h>
41 #include <linux/mutex.h>
42
43 #include <acpi/acpi_bus.h>
44 #include <acpi/acpi_drivers.h>
45 #include <acpi/acpi_numa.h>
46 #include <acpi/acpi_io.h>
47 #include <asm/acpi.h>
48
49 static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
50 {
51 return adev ? adev->handle : NULL;
52 }
53
54 #define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
55 #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
56 acpi_fwnode_handle(adev) : NULL)
57 #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
58
59 /**
60 * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
61 * the PCI-defined class-code information
62 *
63 * @_cls : the class, subclass, prog-if triple for this device
64 * @_msk : the class mask for this device
65 *
66 * This macro is used to create a struct acpi_device_id that matches a
67 * specific PCI class. The .id and .driver_data fields will be left
68 * initialized with the default value.
69 */
70 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
71
72 static inline bool has_acpi_companion(struct device *dev)
73 {
74 return is_acpi_device_node(dev->fwnode);
75 }
76
77 static inline void acpi_preset_companion(struct device *dev,
78 struct acpi_device *parent, u64 addr)
79 {
80 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
81 }
82
83 static inline const char *acpi_dev_name(struct acpi_device *adev)
84 {
85 return dev_name(&adev->dev);
86 }
87
88 enum acpi_irq_model_id {
89 ACPI_IRQ_MODEL_PIC = 0,
90 ACPI_IRQ_MODEL_IOAPIC,
91 ACPI_IRQ_MODEL_IOSAPIC,
92 ACPI_IRQ_MODEL_PLATFORM,
93 ACPI_IRQ_MODEL_GIC,
94 ACPI_IRQ_MODEL_COUNT
95 };
96
97 extern enum acpi_irq_model_id acpi_irq_model;
98
99 enum acpi_interrupt_id {
100 ACPI_INTERRUPT_PMI = 1,
101 ACPI_INTERRUPT_INIT,
102 ACPI_INTERRUPT_CPEI,
103 ACPI_INTERRUPT_COUNT
104 };
105
106 #define ACPI_SPACE_MEM 0
107
108 enum acpi_address_range_id {
109 ACPI_ADDRESS_RANGE_MEMORY = 1,
110 ACPI_ADDRESS_RANGE_RESERVED = 2,
111 ACPI_ADDRESS_RANGE_ACPI = 3,
112 ACPI_ADDRESS_RANGE_NVS = 4,
113 ACPI_ADDRESS_RANGE_COUNT
114 };
115
116
117 /* Table Handlers */
118
119 typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
120
121 typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
122 const unsigned long end);
123
124 /* Debugger support */
125
126 struct acpi_debugger_ops {
127 int (*create_thread)(acpi_osd_exec_callback function, void *context);
128 ssize_t (*write_log)(const char *msg);
129 ssize_t (*read_cmd)(char *buffer, size_t length);
130 int (*wait_command_ready)(bool single_step, char *buffer, size_t length);
131 int (*notify_command_complete)(void);
132 };
133
134 struct acpi_debugger {
135 const struct acpi_debugger_ops *ops;
136 struct module *owner;
137 struct mutex lock;
138 };
139
140 #ifdef CONFIG_ACPI_DEBUGGER
141 int __init acpi_debugger_init(void);
142 int acpi_register_debugger(struct module *owner,
143 const struct acpi_debugger_ops *ops);
144 void acpi_unregister_debugger(const struct acpi_debugger_ops *ops);
145 int acpi_debugger_create_thread(acpi_osd_exec_callback function, void *context);
146 ssize_t acpi_debugger_write_log(const char *msg);
147 ssize_t acpi_debugger_read_cmd(char *buffer, size_t buffer_length);
148 int acpi_debugger_wait_command_ready(void);
149 int acpi_debugger_notify_command_complete(void);
150 #else
151 static inline int acpi_debugger_init(void)
152 {
153 return -ENODEV;
154 }
155
156 static inline int acpi_register_debugger(struct module *owner,
157 const struct acpi_debugger_ops *ops)
158 {
159 return -ENODEV;
160 }
161
162 static inline void acpi_unregister_debugger(const struct acpi_debugger_ops *ops)
163 {
164 }
165
166 static inline int acpi_debugger_create_thread(acpi_osd_exec_callback function,
167 void *context)
168 {
169 return -ENODEV;
170 }
171
172 static inline int acpi_debugger_write_log(const char *msg)
173 {
174 return -ENODEV;
175 }
176
177 static inline int acpi_debugger_read_cmd(char *buffer, u32 buffer_length)
178 {
179 return -ENODEV;
180 }
181
182 static inline int acpi_debugger_wait_command_ready(void)
183 {
184 return -ENODEV;
185 }
186
187 static inline int acpi_debugger_notify_command_complete(void)
188 {
189 return -ENODEV;
190 }
191 #endif
192
193 #ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
194 void acpi_initrd_override(void *data, size_t size);
195 #else
196 static inline void acpi_initrd_override(void *data, size_t size)
197 {
198 }
199 #endif
200
201 #define BAD_MADT_ENTRY(entry, end) ( \
202 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
203 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
204
205 struct acpi_subtable_proc {
206 int id;
207 acpi_tbl_entry_handler handler;
208 int count;
209 };
210
211 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
212 void __acpi_unmap_table(char *map, unsigned long size);
213 int early_acpi_boot_init(void);
214 int acpi_boot_init (void);
215 void acpi_boot_table_init (void);
216 int acpi_mps_check (void);
217 int acpi_numa_init (void);
218
219 int acpi_table_init (void);
220 int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
221 int __init acpi_parse_entries(char *id, unsigned long table_size,
222 acpi_tbl_entry_handler handler,
223 struct acpi_table_header *table_header,
224 int entry_id, unsigned int max_entries);
225 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
226 int entry_id,
227 acpi_tbl_entry_handler handler,
228 unsigned int max_entries);
229 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
230 int entry_id,
231 acpi_tbl_entry_handler handler,
232 unsigned int max_entries);
233 int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
234 struct acpi_subtable_proc *proc, int proc_num,
235 unsigned int max_entries);
236 int acpi_table_parse_madt(enum acpi_madt_type id,
237 acpi_tbl_entry_handler handler,
238 unsigned int max_entries);
239 int acpi_parse_mcfg (struct acpi_table_header *header);
240 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
241
242 /* the following four functions are architecture-dependent */
243 void acpi_numa_slit_init (struct acpi_table_slit *slit);
244 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
245 void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
246 int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
247 void acpi_numa_arch_fixup(void);
248
249 #ifndef PHYS_CPUID_INVALID
250 typedef u32 phys_cpuid_t;
251 #define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
252 #endif
253
254 static inline bool invalid_logical_cpuid(u32 cpuid)
255 {
256 return (int)cpuid < 0;
257 }
258
259 static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
260 {
261 return phys_id == PHYS_CPUID_INVALID;
262 }
263
264 #ifdef CONFIG_ACPI_HOTPLUG_CPU
265 /* Arch dependent functions for cpu hotplug support */
266 int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
267 int acpi_unmap_cpu(int cpu);
268 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
269
270 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
271 int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
272 #endif
273
274 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
275 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
276 int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
277 void acpi_irq_stats_init(void);
278 extern u32 acpi_irq_handled;
279 extern u32 acpi_irq_not_handled;
280 extern unsigned int acpi_sci_irq;
281 #define INVALID_ACPI_IRQ ((unsigned)-1)
282 static inline bool acpi_sci_irq_valid(void)
283 {
284 return acpi_sci_irq != INVALID_ACPI_IRQ;
285 }
286
287 extern int sbf_port;
288 extern unsigned long acpi_realmode_flags;
289
290 int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
291 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
292 int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
293
294 void acpi_set_irq_model(enum acpi_irq_model_id model,
295 struct fwnode_handle *fwnode);
296
297 #ifdef CONFIG_X86_IO_APIC
298 extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
299 #else
300 #define acpi_get_override_irq(gsi, trigger, polarity) (-1)
301 #endif
302 /*
303 * This function undoes the effect of one call to acpi_register_gsi().
304 * If this matches the last registration, any IRQ resources for gsi
305 * are freed.
306 */
307 void acpi_unregister_gsi (u32 gsi);
308
309 struct pci_dev;
310
311 int acpi_pci_irq_enable (struct pci_dev *dev);
312 void acpi_penalize_isa_irq(int irq, int active);
313 bool acpi_isa_irq_available(int irq);
314 void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
315 void acpi_pci_irq_disable (struct pci_dev *dev);
316
317 extern int ec_read(u8 addr, u8 *val);
318 extern int ec_write(u8 addr, u8 val);
319 extern int ec_transaction(u8 command,
320 const u8 *wdata, unsigned wdata_len,
321 u8 *rdata, unsigned rdata_len);
322 extern acpi_handle ec_get_handle(void);
323
324 extern bool acpi_is_pnp_device(struct acpi_device *);
325
326 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
327
328 typedef void (*wmi_notify_handler) (u32 value, void *context);
329
330 extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
331 u32 method_id,
332 const struct acpi_buffer *in,
333 struct acpi_buffer *out);
334 extern acpi_status wmi_query_block(const char *guid, u8 instance,
335 struct acpi_buffer *out);
336 extern acpi_status wmi_set_block(const char *guid, u8 instance,
337 const struct acpi_buffer *in);
338 extern acpi_status wmi_install_notify_handler(const char *guid,
339 wmi_notify_handler handler, void *data);
340 extern acpi_status wmi_remove_notify_handler(const char *guid);
341 extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
342 extern bool wmi_has_guid(const char *guid);
343
344 #endif /* CONFIG_ACPI_WMI */
345
346 #define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
347 #define ACPI_VIDEO_DEVICE_POSTING 0x0002
348 #define ACPI_VIDEO_ROM_AVAILABLE 0x0004
349 #define ACPI_VIDEO_BACKLIGHT 0x0008
350 #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
351 #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
352 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
353 #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
354 #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
355 #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
356 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
357 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
358
359 extern char acpi_video_backlight_string[];
360 extern long acpi_is_video_device(acpi_handle handle);
361 extern int acpi_blacklisted(void);
362 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
363 extern void acpi_osi_setup(char *str);
364 extern bool acpi_osi_is_win8(void);
365
366 #ifdef CONFIG_ACPI_NUMA
367 int acpi_map_pxm_to_online_node(int pxm);
368 int acpi_get_node(acpi_handle handle);
369 #else
370 static inline int acpi_map_pxm_to_online_node(int pxm)
371 {
372 return 0;
373 }
374 static inline int acpi_get_node(acpi_handle handle)
375 {
376 return 0;
377 }
378 #endif
379 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
380
381 extern int pnpacpi_disabled;
382
383 #define PXM_INVAL (-1)
384
385 bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
386 bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
387 bool acpi_dev_resource_address_space(struct acpi_resource *ares,
388 struct resource_win *win);
389 bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
390 struct resource_win *win);
391 unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
392 unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
393 bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
394 struct resource *res);
395
396 void acpi_dev_free_resource_list(struct list_head *list);
397 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
398 int (*preproc)(struct acpi_resource *, void *),
399 void *preproc_data);
400 int acpi_dev_filter_resource_type(struct acpi_resource *ares,
401 unsigned long types);
402
403 static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
404 void *arg)
405 {
406 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
407 }
408
409 int acpi_check_resource_conflict(const struct resource *res);
410
411 int acpi_check_region(resource_size_t start, resource_size_t n,
412 const char *name);
413
414 int acpi_resources_are_enforced(void);
415
416 #ifdef CONFIG_HIBERNATION
417 void __init acpi_no_s4_hw_signature(void);
418 #endif
419
420 #ifdef CONFIG_PM_SLEEP
421 void __init acpi_old_suspend_ordering(void);
422 void __init acpi_nvs_nosave(void);
423 void __init acpi_nvs_nosave_s3(void);
424 #endif /* CONFIG_PM_SLEEP */
425
426 struct acpi_osc_context {
427 char *uuid_str; /* UUID string */
428 int rev;
429 struct acpi_buffer cap; /* list of DWORD capabilities */
430 struct acpi_buffer ret; /* free by caller if success */
431 };
432
433 acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
434 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
435
436 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
437 #define OSC_QUERY_DWORD 0 /* DWORD 1 */
438 #define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
439 #define OSC_CONTROL_DWORD 2 /* DWORD 3 */
440
441 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
442 #define OSC_QUERY_ENABLE 0x00000001 /* input */
443 #define OSC_REQUEST_ERROR 0x00000002 /* return */
444 #define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
445 #define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
446 #define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
447
448 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
449 #define OSC_SB_PAD_SUPPORT 0x00000001
450 #define OSC_SB_PPC_OST_SUPPORT 0x00000002
451 #define OSC_SB_PR3_SUPPORT 0x00000004
452 #define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
453 #define OSC_SB_APEI_SUPPORT 0x00000010
454 #define OSC_SB_CPC_SUPPORT 0x00000020
455
456 extern bool osc_sb_apei_support_acked;
457
458 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
459 #define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
460 #define OSC_PCI_ASPM_SUPPORT 0x00000002
461 #define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
462 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
463 #define OSC_PCI_MSI_SUPPORT 0x00000010
464 #define OSC_PCI_SUPPORT_MASKS 0x0000001f
465
466 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
467 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
468 #define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
469 #define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
470 #define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
471 #define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
472 #define OSC_PCI_CONTROL_MASKS 0x0000001f
473
474 #define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
475 #define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
476 #define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
477 #define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
478 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
479 #define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
480 #define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
481 #define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
482 #define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
483 #define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
484
485 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
486 u32 *mask, u32 req);
487
488 /* Enable _OST when all relevant hotplug operations are enabled */
489 #if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
490 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
491 defined(CONFIG_ACPI_CONTAINER)
492 #define ACPI_HOTPLUG_OST
493 #endif
494
495 /* _OST Source Event Code (OSPM Action) */
496 #define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
497 #define ACPI_OST_EC_OSPM_EJECT 0x103
498 #define ACPI_OST_EC_OSPM_INSERTION 0x200
499
500 /* _OST General Processing Status Code */
501 #define ACPI_OST_SC_SUCCESS 0x0
502 #define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
503 #define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
504
505 /* _OST OS Shutdown Processing (0x100) Status Code */
506 #define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
507 #define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
508 #define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
509 #define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
510
511 /* _OST Ejection Request (0x3, 0x103) Status Code */
512 #define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
513 #define ACPI_OST_SC_DEVICE_IN_USE 0x81
514 #define ACPI_OST_SC_DEVICE_BUSY 0x82
515 #define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
516 #define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
517
518 /* _OST Insertion Request (0x200) Status Code */
519 #define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
520 #define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
521 #define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
522
523 extern void acpi_early_init(void);
524 extern void acpi_subsystem_init(void);
525
526 extern int acpi_nvs_register(__u64 start, __u64 size);
527
528 extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
529 void *data);
530
531 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
532 const struct device *dev);
533
534 extern bool acpi_driver_match_device(struct device *dev,
535 const struct device_driver *drv);
536 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
537 int acpi_device_modalias(struct device *, char *, int);
538 void acpi_walk_dep_device_list(acpi_handle handle);
539
540 struct platform_device *acpi_create_platform_device(struct acpi_device *);
541 #define ACPI_PTR(_ptr) (_ptr)
542
543 #else /* !CONFIG_ACPI */
544
545 #define acpi_disabled 1
546
547 #define ACPI_COMPANION(dev) (NULL)
548 #define ACPI_COMPANION_SET(dev, adev) do { } while (0)
549 #define ACPI_HANDLE(dev) (NULL)
550 #define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
551
552 struct fwnode_handle;
553
554 static inline bool is_acpi_node(struct fwnode_handle *fwnode)
555 {
556 return false;
557 }
558
559 static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
560 {
561 return false;
562 }
563
564 static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
565 {
566 return NULL;
567 }
568
569 static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
570 {
571 return false;
572 }
573
574 static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
575 {
576 return NULL;
577 }
578
579 static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
580 {
581 return NULL;
582 }
583
584 static inline bool has_acpi_companion(struct device *dev)
585 {
586 return false;
587 }
588
589 static inline void acpi_preset_companion(struct device *dev,
590 struct acpi_device *parent, u64 addr)
591 {
592 }
593
594 static inline const char *acpi_dev_name(struct acpi_device *adev)
595 {
596 return NULL;
597 }
598
599 static inline void acpi_early_init(void) { }
600 static inline void acpi_subsystem_init(void) { }
601
602 static inline int early_acpi_boot_init(void)
603 {
604 return 0;
605 }
606 static inline int acpi_boot_init(void)
607 {
608 return 0;
609 }
610
611 static inline void acpi_boot_table_init(void)
612 {
613 return;
614 }
615
616 static inline int acpi_mps_check(void)
617 {
618 return 0;
619 }
620
621 static inline int acpi_check_resource_conflict(struct resource *res)
622 {
623 return 0;
624 }
625
626 static inline int acpi_check_region(resource_size_t start, resource_size_t n,
627 const char *name)
628 {
629 return 0;
630 }
631
632 struct acpi_table_header;
633 static inline int acpi_table_parse(char *id,
634 int (*handler)(struct acpi_table_header *))
635 {
636 return -ENODEV;
637 }
638
639 static inline int acpi_nvs_register(__u64 start, __u64 size)
640 {
641 return 0;
642 }
643
644 static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
645 void *data)
646 {
647 return 0;
648 }
649
650 struct acpi_device_id;
651
652 static inline const struct acpi_device_id *acpi_match_device(
653 const struct acpi_device_id *ids, const struct device *dev)
654 {
655 return NULL;
656 }
657
658 static inline bool acpi_driver_match_device(struct device *dev,
659 const struct device_driver *drv)
660 {
661 return false;
662 }
663
664 static inline int acpi_device_uevent_modalias(struct device *dev,
665 struct kobj_uevent_env *env)
666 {
667 return -ENODEV;
668 }
669
670 static inline int acpi_device_modalias(struct device *dev,
671 char *buf, int size)
672 {
673 return -ENODEV;
674 }
675
676 static inline bool acpi_dma_supported(struct acpi_device *adev)
677 {
678 return false;
679 }
680
681 static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
682 {
683 return DEV_DMA_NOT_SUPPORTED;
684 }
685
686 #define ACPI_PTR(_ptr) (NULL)
687
688 #endif /* !CONFIG_ACPI */
689
690 #ifdef CONFIG_ACPI
691 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
692 u32 pm1a_ctrl, u32 pm1b_ctrl));
693
694 acpi_status acpi_os_prepare_sleep(u8 sleep_state,
695 u32 pm1a_control, u32 pm1b_control);
696
697 void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
698 u32 val_a, u32 val_b));
699
700 acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
701 u32 val_a, u32 val_b);
702
703 #ifdef CONFIG_X86
704 void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
705 #else
706 static inline void arch_reserve_mem_area(acpi_physical_address addr,
707 size_t size)
708 {
709 }
710 #endif /* CONFIG_X86 */
711 #else
712 #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
713 #endif
714
715 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
716 int acpi_dev_runtime_suspend(struct device *dev);
717 int acpi_dev_runtime_resume(struct device *dev);
718 int acpi_subsys_runtime_suspend(struct device *dev);
719 int acpi_subsys_runtime_resume(struct device *dev);
720 struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
721 int acpi_dev_pm_attach(struct device *dev, bool power_on);
722 #else
723 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
724 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
725 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
726 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
727 static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
728 {
729 return NULL;
730 }
731 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
732 {
733 return -ENODEV;
734 }
735 #endif
736
737 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
738 int acpi_dev_suspend_late(struct device *dev);
739 int acpi_dev_resume_early(struct device *dev);
740 int acpi_subsys_prepare(struct device *dev);
741 void acpi_subsys_complete(struct device *dev);
742 int acpi_subsys_suspend_late(struct device *dev);
743 int acpi_subsys_resume_early(struct device *dev);
744 int acpi_subsys_suspend(struct device *dev);
745 int acpi_subsys_freeze(struct device *dev);
746 #else
747 static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
748 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
749 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
750 static inline void acpi_subsys_complete(struct device *dev) {}
751 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
752 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
753 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
754 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
755 #endif
756
757 #ifdef CONFIG_ACPI
758 __printf(3, 4)
759 void acpi_handle_printk(const char *level, acpi_handle handle,
760 const char *fmt, ...);
761 #else /* !CONFIG_ACPI */
762 static inline __printf(3, 4) void
763 acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
764 #endif /* !CONFIG_ACPI */
765
766 #if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
767 __printf(3, 4)
768 void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
769 #else
770 #define __acpi_handle_debug(descriptor, handle, fmt, ...) \
771 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
772 #endif
773
774 /*
775 * acpi_handle_<level>: Print message with ACPI prefix and object path
776 *
777 * These interfaces acquire the global namespace mutex to obtain an object
778 * path. In interrupt context, it shows the object path as <n/a>.
779 */
780 #define acpi_handle_emerg(handle, fmt, ...) \
781 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
782 #define acpi_handle_alert(handle, fmt, ...) \
783 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
784 #define acpi_handle_crit(handle, fmt, ...) \
785 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
786 #define acpi_handle_err(handle, fmt, ...) \
787 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
788 #define acpi_handle_warn(handle, fmt, ...) \
789 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
790 #define acpi_handle_notice(handle, fmt, ...) \
791 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
792 #define acpi_handle_info(handle, fmt, ...) \
793 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
794
795 #if defined(DEBUG)
796 #define acpi_handle_debug(handle, fmt, ...) \
797 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
798 #else
799 #if defined(CONFIG_DYNAMIC_DEBUG)
800 #define acpi_handle_debug(handle, fmt, ...) \
801 do { \
802 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
803 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
804 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
805 ##__VA_ARGS__); \
806 } while (0)
807 #else
808 #define acpi_handle_debug(handle, fmt, ...) \
809 ({ \
810 if (0) \
811 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
812 0; \
813 })
814 #endif
815 #endif
816
817 struct acpi_gpio_params {
818 unsigned int crs_entry_index;
819 unsigned int line_index;
820 bool active_low;
821 };
822
823 struct acpi_gpio_mapping {
824 const char *name;
825 const struct acpi_gpio_params *data;
826 unsigned int size;
827 };
828
829 #if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
830 int acpi_dev_add_driver_gpios(struct acpi_device *adev,
831 const struct acpi_gpio_mapping *gpios);
832
833 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
834 {
835 if (adev)
836 adev->driver_gpios = NULL;
837 }
838
839 int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
840 #else
841 static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
842 const struct acpi_gpio_mapping *gpios)
843 {
844 return -ENXIO;
845 }
846 static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
847
848 static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
849 {
850 return -ENXIO;
851 }
852 #endif
853
854 /* Device properties */
855
856 #define MAX_ACPI_REFERENCE_ARGS 8
857 struct acpi_reference_args {
858 struct acpi_device *adev;
859 size_t nargs;
860 u64 args[MAX_ACPI_REFERENCE_ARGS];
861 };
862
863 #ifdef CONFIG_ACPI
864 int acpi_dev_get_property(struct acpi_device *adev, const char *name,
865 acpi_object_type type, const union acpi_object **obj);
866 int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
867 const char *name, size_t index,
868 struct acpi_reference_args *args);
869
870 int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
871 void **valptr);
872 int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
873 enum dev_prop_type proptype, void *val);
874 int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
875 enum dev_prop_type proptype, void *val, size_t nval);
876 int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
877 enum dev_prop_type proptype, void *val, size_t nval);
878
879 struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
880 struct fwnode_handle *subnode);
881
882 struct acpi_probe_entry;
883 typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
884 struct acpi_probe_entry *);
885
886 #define ACPI_TABLE_ID_LEN 5
887
888 /**
889 * struct acpi_probe_entry - boot-time probing entry
890 * @id: ACPI table name
891 * @type: Optional subtable type to match
892 * (if @id contains subtables)
893 * @subtable_valid: Optional callback to check the validity of
894 * the subtable
895 * @probe_table: Callback to the driver being probed when table
896 * match is successful
897 * @probe_subtbl: Callback to the driver being probed when table and
898 * subtable match (and optional callback is successful)
899 * @driver_data: Sideband data provided back to the driver
900 */
901 struct acpi_probe_entry {
902 __u8 id[ACPI_TABLE_ID_LEN];
903 __u8 type;
904 acpi_probe_entry_validate_subtbl subtable_valid;
905 union {
906 acpi_tbl_table_handler probe_table;
907 acpi_tbl_entry_handler probe_subtbl;
908 };
909 kernel_ulong_t driver_data;
910 };
911
912 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
913 static const struct acpi_probe_entry __acpi_probe_##name \
914 __used __section(__##table##_acpi_probe_table) \
915 = { \
916 .id = table_id, \
917 .type = subtable, \
918 .subtable_valid = valid, \
919 .probe_table = (acpi_tbl_table_handler)fn, \
920 .driver_data = data, \
921 }
922
923 #define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
924 #define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
925
926 int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
927
928 #define acpi_probe_device_table(t) \
929 ({ \
930 extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
931 ACPI_PROBE_TABLE_END(t); \
932 __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
933 (&ACPI_PROBE_TABLE_END(t) - \
934 &ACPI_PROBE_TABLE(t))); \
935 })
936 #else
937 static inline int acpi_dev_get_property(struct acpi_device *adev,
938 const char *name, acpi_object_type type,
939 const union acpi_object **obj)
940 {
941 return -ENXIO;
942 }
943
944 static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
945 const char *name, size_t index,
946 struct acpi_reference_args *args)
947 {
948 return -ENXIO;
949 }
950
951 static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
952 const char *propname,
953 void **valptr)
954 {
955 return -ENXIO;
956 }
957
958 static inline int acpi_dev_prop_get(struct acpi_device *adev,
959 const char *propname,
960 void **valptr)
961 {
962 return -ENXIO;
963 }
964
965 static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
966 const char *propname,
967 enum dev_prop_type proptype,
968 void *val)
969 {
970 return -ENXIO;
971 }
972
973 static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
974 const char *propname,
975 enum dev_prop_type proptype,
976 void *val, size_t nval)
977 {
978 return -ENXIO;
979 }
980
981 static inline int acpi_dev_prop_read(struct acpi_device *adev,
982 const char *propname,
983 enum dev_prop_type proptype,
984 void *val, size_t nval)
985 {
986 return -ENXIO;
987 }
988
989 static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
990 struct fwnode_handle *subnode)
991 {
992 return NULL;
993 }
994
995 #define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
996 static const void * __acpi_table_##name[] \
997 __attribute__((unused)) \
998 = { (void *) table_id, \
999 (void *) subtable, \
1000 (void *) valid, \
1001 (void *) fn, \
1002 (void *) data }
1003
1004 #define acpi_probe_device_table(t) ({ int __r = 0; __r;})
1005 #endif
1006
1007 #endif /*_LINUX_ACPI_H*/
Linux kernel - Deliverables
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