blob: dd12127f171c7569fd169915d01dd24e7af97aba [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Rafael J. Wysocki51333752012-11-15 13:15:37 +010028#include <linux/errno.h>
Thomas Renninger443dea72008-02-04 23:31:23 -080029#include <linux/ioport.h> /* for struct resource */
Jiang Liu90e97822015-02-05 13:44:43 +080030#include <linux/resource_ext.h>
Mika Westerbergcf761af2012-10-31 22:44:41 +010031#include <linux/device.h>
Rafael J. Wysockib31384f2014-11-04 01:28:56 +010032#include <linux/property.h>
David Mosberger3f5948f2005-06-06 15:50:09 -070033
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#ifndef _LINUX
35#define _LINUX
36#endif
Lv Zheng633adab2014-07-16 16:58:30 +080037#include <acpi/acpi.h>
38
39#ifdef CONFIG_ACPI
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
41#include <linux/list.h>
Thomas Renninger29b71a12007-07-23 14:43:51 +020042#include <linux/mod_devicetable.h>
Bjørn Mork45fef5b2014-05-22 12:47:47 +020043#include <linux/dynamic_debug.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#include <acpi/acpi_bus.h>
46#include <acpi/acpi_drivers.h>
Yasunori Goto762834e2006-06-23 02:03:19 -070047#include <acpi/acpi_numa.h>
Lv Zheng27d50c82013-12-06 16:52:05 +080048#include <acpi/acpi_io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#include <asm/acpi.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
Rafael J. Wysocki7b199812013-11-11 22:41:56 +010051static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
52{
53 return adev ? adev->handle : NULL;
54}
55
Rafael J. Wysockice793482015-03-16 23:49:03 +010056#define ACPI_COMPANION(dev) acpi_node((dev)->fwnode)
Rafael J. Wysocki97badf82015-04-03 23:23:37 +020057#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
58 acpi_fwnode_handle(adev) : NULL)
Rafael J. Wysocki7b199812013-11-11 22:41:56 +010059#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
60
Rafael J. Wysockica5b74d2015-03-16 23:49:08 +010061static inline bool has_acpi_companion(struct device *dev)
62{
63 return is_acpi_node(dev->fwnode);
64}
65
Rafael J. Wysocki9c5ad362013-11-28 23:58:28 +010066static inline void acpi_preset_companion(struct device *dev,
67 struct acpi_device *parent, u64 addr)
68{
69 ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
70}
71
Jarkko Nikula45c42a72013-11-14 14:03:51 +020072static inline const char *acpi_dev_name(struct acpi_device *adev)
73{
74 return dev_name(&adev->dev);
75}
76
Linus Torvalds1da177e2005-04-16 15:20:36 -070077enum acpi_irq_model_id {
78 ACPI_IRQ_MODEL_PIC = 0,
79 ACPI_IRQ_MODEL_IOAPIC,
80 ACPI_IRQ_MODEL_IOSAPIC,
John Keller3948ec92006-12-22 11:50:04 -060081 ACPI_IRQ_MODEL_PLATFORM,
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 ACPI_IRQ_MODEL_COUNT
83};
84
85extern enum acpi_irq_model_id acpi_irq_model;
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087enum acpi_interrupt_id {
88 ACPI_INTERRUPT_PMI = 1,
89 ACPI_INTERRUPT_INIT,
90 ACPI_INTERRUPT_CPEI,
91 ACPI_INTERRUPT_COUNT
92};
93
94#define ACPI_SPACE_MEM 0
95
Linus Torvalds1da177e2005-04-16 15:20:36 -070096enum acpi_address_range_id {
97 ACPI_ADDRESS_RANGE_MEMORY = 1,
98 ACPI_ADDRESS_RANGE_RESERVED = 2,
99 ACPI_ADDRESS_RANGE_ACPI = 3,
100 ACPI_ADDRESS_RANGE_NVS = 4,
101 ACPI_ADDRESS_RANGE_COUNT
102};
103
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105/* Table Handlers */
106
Lv Zhengb43e1062013-01-12 15:29:38 +0000107typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108
Lv Zhengb43e1062013-01-12 15:29:38 +0000109typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
110 const unsigned long end);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111
Thomas Renninger53aac442012-10-01 00:23:54 +0200112#ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
113void acpi_initrd_override(void *data, size_t size);
114#else
115static inline void acpi_initrd_override(void *data, size_t size)
116{
117}
118#endif
119
Hanjun Guo328281b2014-02-19 00:23:57 +0800120#define BAD_MADT_ENTRY(entry, end) ( \
121 (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
122 ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
Yinghai Lu970ec1a2009-02-15 14:06:13 -0800125void __acpi_unmap_table(char *map, unsigned long size);
Yinghai Lucbf9bd62008-02-19 03:21:06 -0800126int early_acpi_boot_init(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127int acpi_boot_init (void);
Len Brown8558e392010-01-06 16:11:06 -0500128void acpi_boot_table_init (void);
Yinghai Lu3c999f12008-06-20 16:11:20 -0700129int acpi_mps_check (void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130int acpi_numa_init (void);
131
132int acpi_table_init (void);
Lv Zhengb43e1062013-01-12 15:29:38 +0000133int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
Ashwin Chaugulef08bb472014-11-26 22:01:13 +0800134int __init acpi_parse_entries(char *id, unsigned long table_size,
135 acpi_tbl_entry_handler handler,
136 struct acpi_table_header *table_header,
137 int entry_id, unsigned int max_entries);
Len Brown6eb87fe2007-02-10 22:17:07 -0500138int __init acpi_table_parse_entries(char *id, unsigned long table_size,
Lv Zhengb43e1062013-01-12 15:29:38 +0000139 int entry_id,
140 acpi_tbl_entry_handler handler,
141 unsigned int max_entries);
142int acpi_table_parse_madt(enum acpi_madt_type id,
143 acpi_tbl_entry_handler handler,
144 unsigned int max_entries);
Alexey Starikovskiyceb6c462007-02-02 19:48:22 +0300145int acpi_parse_mcfg (struct acpi_table_header *header);
Alexey Starikovskiy5f3b1a82007-02-02 19:48:22 +0300146void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148/* the following four functions are architecture-dependent */
149void acpi_numa_slit_init (struct acpi_table_slit *slit);
Alexey Starikovskiy15a58ed2007-02-02 19:48:22 +0300150void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
Suresh Siddha7237d3d2009-03-30 13:55:30 -0800151void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
Thomas Renninger095adbb2012-07-31 17:41:09 +0200152int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153void acpi_numa_arch_fixup(void);
154
155#ifdef CONFIG_ACPI_HOTPLUG_CPU
156/* Arch dependent functions for cpu hotplug support */
Hanjun Guod02dc272015-01-04 18:55:03 +0800157int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu);
158int acpi_unmap_cpu(int cpu);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159#endif /* CONFIG_ACPI_HOTPLUG_CPU */
160
Yinghai Luecf56362015-02-05 13:44:48 +0800161#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
162int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
163#endif
164
Kenji Kaneshigeb1bb2482005-04-28 00:25:58 -0700165int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
166int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
Jiang Liue89900c2014-10-27 13:21:47 +0800167int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
Len Brown5229e872008-02-06 01:26:55 -0500168void acpi_irq_stats_init(void);
Len Brown5229e872008-02-06 01:26:55 -0500169extern u32 acpi_irq_handled;
Len Brown88bea182009-04-21 00:35:47 -0400170extern u32 acpi_irq_not_handled;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
Pavel Machekc255d842006-02-20 18:27:58 -0800172extern int sbf_port;
Pavel Machek77afcf72007-07-19 01:47:41 -0700173extern unsigned long acpi_realmode_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
Yinghai Lua2f809b2009-04-27 18:01:20 -0700175int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
Eric W. Biederman2c2df842010-03-30 01:07:02 -0700177int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178
Shaohua Li61fd47e2007-11-17 01:05:28 -0500179#ifdef CONFIG_X86_IO_APIC
Eric W. Biederman9a0a91b2010-03-30 01:07:03 -0700180extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
Shaohua Li61fd47e2007-11-17 01:05:28 -0500181#else
Eric W. Biederman9a0a91b2010-03-30 01:07:03 -0700182#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
Shaohua Li61fd47e2007-11-17 01:05:28 -0500183#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184/*
185 * This function undoes the effect of one call to acpi_register_gsi().
186 * If this matches the last registration, any IRQ resources for gsi
187 * are freed.
188 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189void acpi_unregister_gsi (u32 gsi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191struct pci_dev;
192
193int acpi_pci_irq_enable (struct pci_dev *dev);
David Shaohua Lic9c3e452005-04-01 00:07:31 -0500194void acpi_penalize_isa_irq(int irq, int active);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196void acpi_pci_irq_disable (struct pci_dev *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198extern int ec_read(u8 addr, u8 *val);
199extern int ec_write(u8 addr, u8 val);
Lennart Poetteringd7a76e42006-09-05 12:12:24 -0400200extern int ec_transaction(u8 command,
201 const u8 *wdata, unsigned wdata_len,
Thomas Renninger1cb7b1e2011-03-31 13:36:38 +0200202 u8 *rdata, unsigned rdata_len);
Seth Forshee3e2abc52012-01-18 13:44:08 -0600203extern acpi_handle ec_get_handle(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204
Zhang Ruieec15ed2014-05-30 04:23:01 +0200205extern bool acpi_is_pnp_device(struct acpi_device *);
206
Carlos Corbachobff431e2008-02-05 02:17:04 +0000207#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
208
209typedef void (*wmi_notify_handler) (u32 value, void *context);
210
211extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
212 u32 method_id,
213 const struct acpi_buffer *in,
214 struct acpi_buffer *out);
215extern acpi_status wmi_query_block(const char *guid, u8 instance,
216 struct acpi_buffer *out);
217extern acpi_status wmi_set_block(const char *guid, u8 instance,
218 const struct acpi_buffer *in);
219extern acpi_status wmi_install_notify_handler(const char *guid,
220 wmi_notify_handler handler, void *data);
221extern acpi_status wmi_remove_notify_handler(const char *guid);
222extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
223extern bool wmi_has_guid(const char *guid);
224
225#endif /* CONFIG_ACPI_WMI */
226
Thomas Renningerc3d6de62008-08-01 17:37:55 +0200227#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
228#define ACPI_VIDEO_DEVICE_POSTING 0x0002
229#define ACPI_VIDEO_ROM_AVAILABLE 0x0004
230#define ACPI_VIDEO_BACKLIGHT 0x0008
231#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
232#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
233#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
234#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
235#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
236#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
237#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
238#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
239
240#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
241
242extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
Toshi Kanid4e1a692013-03-04 21:30:41 +0000243extern long acpi_is_video_device(acpi_handle handle);
Corentin Charyf838eb52012-06-13 09:32:01 +0200244extern void acpi_video_dmi_promote_vendor(void);
245extern void acpi_video_dmi_demote_vendor(void);
Thomas Renningerc3d6de62008-08-01 17:37:55 +0200246extern int acpi_video_backlight_support(void);
247extern int acpi_video_display_switch_support(void);
248
249#else
250
251static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
252{
253 return 0;
254}
255
Toshi Kanid4e1a692013-03-04 21:30:41 +0000256static inline long acpi_is_video_device(acpi_handle handle)
Thomas Renningerc3d6de62008-08-01 17:37:55 +0200257{
258 return 0;
259}
260
Corentin Charyf838eb52012-06-13 09:32:01 +0200261static inline void acpi_video_dmi_promote_vendor(void)
262{
263}
264
265static inline void acpi_video_dmi_demote_vendor(void)
266{
267}
268
Thomas Renningerc3d6de62008-08-01 17:37:55 +0200269static inline int acpi_video_backlight_support(void)
270{
271 return 0;
272}
273
274static inline int acpi_video_display_switch_support(void)
275{
276 return 0;
277}
278
279#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
280
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281extern int acpi_blacklisted(void);
Len Brownd4b7dc42008-01-23 20:50:56 -0500282extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
Lin Mingd90aa922010-12-09 16:50:52 +0800283extern void acpi_osi_setup(char *str);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285#ifdef CONFIG_ACPI_NUMA
Bjorn Helgaas486c79b2014-01-24 15:25:10 -0700286int acpi_get_node(acpi_handle handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287#else
Bjorn Helgaas486c79b2014-01-24 15:25:10 -0700288static inline int acpi_get_node(acpi_handle handle)
Yasunori Goto1e3590e2006-06-27 02:53:31 -0700289{
290 return 0;
291}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292#endif
Yasunori Goto1e3590e2006-06-27 02:53:31 -0700293extern int acpi_paddr_to_node(u64 start_addr, u64 size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
295extern int pnpacpi_disabled;
296
David Rientjes3484d792007-07-21 17:10:32 +0200297#define PXM_INVAL (-1)
David Rientjes3484d792007-07-21 17:10:32 +0200298
Rafael J. Wysocki046d9ce2012-11-15 00:30:01 +0100299bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
300bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
301bool acpi_dev_resource_address_space(struct acpi_resource *ares,
Jiang Liua49170b2015-02-02 10:42:58 +0800302 struct resource_win *win);
Rafael J. Wysocki046d9ce2012-11-15 00:30:01 +0100303bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
Jiang Liua49170b2015-02-02 10:42:58 +0800304 struct resource_win *win);
Rafael J. Wysocki046d9ce2012-11-15 00:30:01 +0100305unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
306bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
307 struct resource *res);
308
Rafael J. Wysocki8e345c92012-11-15 00:30:21 +0100309void acpi_dev_free_resource_list(struct list_head *list);
310int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
311 int (*preproc)(struct acpi_resource *, void *),
312 void *preproc_data);
Jiang Liu62d11412015-02-02 10:43:01 +0800313int acpi_dev_filter_resource_type(struct acpi_resource *ares,
314 unsigned long types);
315
316static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
317 void *arg)
318{
319 return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
320}
Rafael J. Wysocki8e345c92012-11-15 00:30:21 +0100321
Jean Delvare876fba42009-11-11 15:22:15 +0100322int acpi_check_resource_conflict(const struct resource *res);
Thomas Renninger443dea72008-02-04 23:31:23 -0800323
Thomas Renningerdf92e692008-02-04 23:31:22 -0800324int acpi_check_region(resource_size_t start, resource_size_t n,
325 const char *name);
Thomas Renningerdf92e692008-02-04 23:31:22 -0800326
Jean Delvare70dd6be2010-05-27 19:58:37 +0200327int acpi_resources_are_enforced(void);
328
Yuanhan Liu9743fde2012-10-26 13:39:24 +0200329#ifdef CONFIG_HIBERNATION
Shaohua Libdfe6b72008-07-23 21:28:41 -0700330void __init acpi_no_s4_hw_signature(void);
Yuanhan Liu9743fde2012-10-26 13:39:24 +0200331#endif
332
333#ifdef CONFIG_PM_SLEEP
Rafael J. Wysockid8f3de02008-06-12 23:24:06 +0200334void __init acpi_old_suspend_ordering(void);
Rafael J. Wysocki72ad5d72010-07-23 22:59:09 +0200335void __init acpi_nvs_nosave(void);
Kristen Carlson Accardi1bad2f12012-10-26 13:39:15 +0200336void __init acpi_nvs_nosave_s3(void);
Rafael J. Wysockid8f3de02008-06-12 23:24:06 +0200337#endif /* CONFIG_PM_SLEEP */
Kenji Kaneshige9f5404d2009-02-09 16:00:04 +0900338
Shaohua Li70023de2009-10-29 11:04:28 +0800339struct acpi_osc_context {
Bjorn Helgaasc8678472013-09-05 15:05:55 -0600340 char *uuid_str; /* UUID string */
Shaohua Li70023de2009-10-29 11:04:28 +0800341 int rev;
Bjorn Helgaasc8678472013-09-05 15:05:55 -0600342 struct acpi_buffer cap; /* list of DWORD capabilities */
343 struct acpi_buffer ret; /* free by caller if success */
Shaohua Li70023de2009-10-29 11:04:28 +0800344};
345
Chen, Gong4b3db702013-10-21 14:29:25 -0700346acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
Shaohua Li70023de2009-10-29 11:04:28 +0800347acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
348
Bjorn Helgaasb938a222013-09-05 15:05:54 -0600349/* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
350#define OSC_QUERY_DWORD 0 /* DWORD 1 */
351#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
352#define OSC_CONTROL_DWORD 2 /* DWORD 3 */
Kenji Kaneshige9f5404d2009-02-09 16:00:04 +0900353
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600354/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
355#define OSC_QUERY_ENABLE 0x00000001 /* input */
356#define OSC_REQUEST_ERROR 0x00000002 /* return */
357#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
358#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
359#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
Kenji Kaneshige9f5404d2009-02-09 16:00:04 +0900360
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600361/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
362#define OSC_SB_PAD_SUPPORT 0x00000001
363#define OSC_SB_PPC_OST_SUPPORT 0x00000002
364#define OSC_SB_PR3_SUPPORT 0x00000004
365#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
366#define OSC_SB_APEI_SUPPORT 0x00000010
367#define OSC_SB_CPC_SUPPORT 0x00000020
Shaohua Li3563ff92009-10-29 11:05:05 +0800368
Huang Yingeccddd32011-07-13 13:14:20 +0800369extern bool osc_sb_apei_support_acked;
370
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600371/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
Bjorn Helgaas7dab9ef2013-09-05 15:07:39 -0600372#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
373#define OSC_PCI_ASPM_SUPPORT 0x00000002
374#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600375#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
Bjorn Helgaas7dab9ef2013-09-05 15:07:39 -0600376#define OSC_PCI_MSI_SUPPORT 0x00000010
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600377#define OSC_PCI_SUPPORT_MASKS 0x0000001f
Kenji Kaneshige9f5404d2009-02-09 16:00:04 +0900378
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600379/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
380#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
Bjorn Helgaas7dab9ef2013-09-05 15:07:39 -0600381#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
Bjorn Helgaasdedf1e42013-09-05 15:05:53 -0600382#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
383#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
Bjorn Helgaas7dab9ef2013-09-05 15:07:39 -0600384#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
Bjorn Helgaas335b1502013-09-05 15:24:24 -0600385#define OSC_PCI_CONTROL_MASKS 0x0000001f
Rafael J. Wysockid90116e2011-11-06 23:11:28 +0100386
Lan Tianyu5d98e612014-05-20 20:59:23 +0800387#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
388#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
389#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
390#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
391#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
392#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
393#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
394#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
395#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
396#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
397
Rafael J. Wysocki75fb60f2010-08-23 23:53:11 +0200398extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
399 u32 *mask, u32 req);
Toshi Kani275c58d2012-05-23 20:25:19 -0600400
401/* Enable _OST when all relevant hotplug operations are enabled */
402#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
Toshi Kani08f502c2013-06-18 15:06:45 -0600403 defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
Toshi Kani64fd7402013-02-11 22:33:20 +0000404 defined(CONFIG_ACPI_CONTAINER)
Toshi Kani275c58d2012-05-23 20:25:19 -0600405#define ACPI_HOTPLUG_OST
406#endif
407
408/* _OST Source Event Code (OSPM Action) */
409#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
410#define ACPI_OST_EC_OSPM_EJECT 0x103
411#define ACPI_OST_EC_OSPM_INSERTION 0x200
412
413/* _OST General Processing Status Code */
414#define ACPI_OST_SC_SUCCESS 0x0
415#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
416#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
417
418/* _OST OS Shutdown Processing (0x100) Status Code */
419#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
420#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
421#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
422#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
423
424/* _OST Ejection Request (0x3, 0x103) Status Code */
425#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
426#define ACPI_OST_SC_DEVICE_IN_USE 0x81
427#define ACPI_OST_SC_DEVICE_BUSY 0x82
428#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
429#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
430
431/* _OST Insertion Request (0x200) Status Code */
432#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
433#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
434#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
435
Len Brown4a7a16d2009-06-12 20:42:08 -0400436extern void acpi_early_init(void);
437
Huang Yingb54ac6d2011-12-08 11:25:49 +0800438extern int acpi_nvs_register(__u64 start, __u64 size);
439
440extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
441 void *data);
442
Mika Westerbergcf761af2012-10-31 22:44:41 +0100443const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
444 const struct device *dev);
445
Mika Westerberg733e6252014-10-21 13:33:56 +0200446extern bool acpi_driver_match_device(struct device *dev,
447 const struct device_driver *drv);
Zhang Rui6eb24512014-01-14 16:46:36 +0800448int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
449int acpi_device_modalias(struct device *, char *, int);
Lan Tianyu40e7fcb2014-11-23 21:22:54 +0800450void acpi_walk_dep_device_list(acpi_handle handle);
Zhang Rui6eb24512014-01-14 16:46:36 +0800451
Zhang Rui083bf662014-03-14 14:06:25 +0800452struct platform_device *acpi_create_platform_device(struct acpi_device *);
Mika Westerbergcf761af2012-10-31 22:44:41 +0100453#define ACPI_PTR(_ptr) (_ptr)
454
Feng Tange55a5992009-07-28 17:41:53 +0800455#else /* !CONFIG_ACPI */
456
457#define acpi_disabled 1
458
Rafael J. Wysocki7b199812013-11-11 22:41:56 +0100459#define ACPI_COMPANION(dev) (NULL)
460#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
461#define ACPI_HANDLE(dev) (NULL)
462
Rafael J. Wysocki8a0662d2014-11-04 14:03:59 +0100463struct fwnode_handle;
464
465static inline bool is_acpi_node(struct fwnode_handle *fwnode)
466{
467 return false;
468}
469
470static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode)
471{
472 return NULL;
473}
474
475static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
476{
477 return NULL;
478}
479
Rafael J. Wysockica5b74d2015-03-16 23:49:08 +0100480static inline bool has_acpi_companion(struct device *dev)
481{
482 return false;
483}
484
Jarkko Nikula45c42a72013-11-14 14:03:51 +0200485static inline const char *acpi_dev_name(struct acpi_device *adev)
486{
487 return NULL;
488}
489
Len Brown4a7a16d2009-06-12 20:42:08 -0400490static inline void acpi_early_init(void) { }
Andrew Morton53de49f2005-07-30 04:18:00 -0400491
Yinghai Lucbf9bd62008-02-19 03:21:06 -0800492static inline int early_acpi_boot_init(void)
493{
494 return 0;
495}
Andrew Morton53de49f2005-07-30 04:18:00 -0400496static inline int acpi_boot_init(void)
497{
498 return 0;
499}
500
Len Brown8558e392010-01-06 16:11:06 -0500501static inline void acpi_boot_table_init(void)
Andrew Morton53de49f2005-07-30 04:18:00 -0400502{
Len Brown8558e392010-01-06 16:11:06 -0500503 return;
Andrew Morton53de49f2005-07-30 04:18:00 -0400504}
505
Yinghai Lu3c999f12008-06-20 16:11:20 -0700506static inline int acpi_mps_check(void)
507{
508 return 0;
509}
510
Thomas Renninger443dea72008-02-04 23:31:23 -0800511static inline int acpi_check_resource_conflict(struct resource *res)
512{
513 return 0;
514}
515
Thomas Renningerdf92e692008-02-04 23:31:22 -0800516static inline int acpi_check_region(resource_size_t start, resource_size_t n,
517 const char *name)
518{
519 return 0;
520}
521
Feng Tange55a5992009-07-28 17:41:53 +0800522struct acpi_table_header;
523static inline int acpi_table_parse(char *id,
524 int (*handler)(struct acpi_table_header *))
525{
tangchenf8a571b2014-01-06 16:47:59 +0800526 return -ENODEV;
Feng Tange55a5992009-07-28 17:41:53 +0800527}
Rafael J. Wysocki6fed05c2011-01-12 22:03:20 +0100528
Huang Yingb54ac6d2011-12-08 11:25:49 +0800529static inline int acpi_nvs_register(__u64 start, __u64 size)
Rafael J. Wysocki6fed05c2011-01-12 22:03:20 +0100530{
531 return 0;
532}
Huang Yingb54ac6d2011-12-08 11:25:49 +0800533
534static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
535 void *data)
536{
537 return 0;
538}
539
Mika Westerbergcf761af2012-10-31 22:44:41 +0100540struct acpi_device_id;
541
542static inline const struct acpi_device_id *acpi_match_device(
543 const struct acpi_device_id *ids, const struct device *dev)
544{
545 return NULL;
546}
547
548static inline bool acpi_driver_match_device(struct device *dev,
549 const struct device_driver *drv)
550{
551 return false;
552}
553
Zhang Rui6eb24512014-01-14 16:46:36 +0800554static inline int acpi_device_uevent_modalias(struct device *dev,
555 struct kobj_uevent_env *env)
556{
557 return -ENODEV;
558}
559
560static inline int acpi_device_modalias(struct device *dev,
561 char *buf, int size)
562{
563 return -ENODEV;
564}
565
Mika Westerbergcf761af2012-10-31 22:44:41 +0100566#define ACPI_PTR(_ptr) (NULL)
567
Huang Yingb54ac6d2011-12-08 11:25:49 +0800568#endif /* !CONFIG_ACPI */
Rafael J. Wysocki6fed05c2011-01-12 22:03:20 +0100569
Tang Liang09f98a82011-12-09 10:05:54 +0800570#ifdef CONFIG_ACPI
571void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
572 u32 pm1a_ctrl, u32 pm1b_ctrl));
573
574acpi_status acpi_os_prepare_sleep(u8 sleep_state,
575 u32 pm1a_control, u32 pm1b_control);
Ben Guthrod6b47b12013-07-30 08:24:52 -0400576
577void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
578 u32 val_a, u32 val_b));
579
580acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
581 u32 val_a, u32 val_b);
582
Luck, Tony385ddea2012-10-05 15:05:34 -0700583#ifdef CONFIG_X86
Thomas Renninger8e305242012-10-01 00:23:53 +0200584void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
585#else
586static inline void arch_reserve_mem_area(acpi_physical_address addr,
587 size_t size)
588{
589}
590#endif /* CONFIG_X86 */
Tang Liang09f98a82011-12-09 10:05:54 +0800591#else
592#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
593#endif
594
Rafael J. Wysocki5de21bb92014-11-27 22:38:23 +0100595#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100596int acpi_dev_runtime_suspend(struct device *dev);
597int acpi_dev_runtime_resume(struct device *dev);
598int acpi_subsys_runtime_suspend(struct device *dev);
599int acpi_subsys_runtime_resume(struct device *dev);
Rafael J. Wysocki5de21bb92014-11-27 22:38:23 +0100600struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
601int acpi_dev_pm_attach(struct device *dev, bool power_on);
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100602#else
603static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
604static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
605static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
606static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
Rafael J. Wysocki5de21bb92014-11-27 22:38:23 +0100607static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
608{
609 return NULL;
610}
611static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
612{
613 return -ENODEV;
614}
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100615#endif
616
Rafael J. Wysockid79beb32013-01-19 14:29:31 +0100617#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100618int acpi_dev_suspend_late(struct device *dev);
619int acpi_dev_resume_early(struct device *dev);
620int acpi_subsys_prepare(struct device *dev);
Heikki Krogerus4cf563c2014-05-15 16:40:23 +0300621void acpi_subsys_complete(struct device *dev);
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100622int acpi_subsys_suspend_late(struct device *dev);
623int acpi_subsys_resume_early(struct device *dev);
Heikki Krogerus4cf563c2014-05-15 16:40:23 +0300624int acpi_subsys_suspend(struct device *dev);
625int acpi_subsys_freeze(struct device *dev);
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100626#else
627static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
628static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
629static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
Heikki Krogerus4cf563c2014-05-15 16:40:23 +0300630static inline void acpi_subsys_complete(struct device *dev) {}
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100631static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
632static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
Heikki Krogerus4cf563c2014-05-15 16:40:23 +0300633static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
634static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
Rafael J. Wysockie5cc8ef2012-11-02 01:41:01 +0100635#endif
636
Toshi Kanifbfddae2012-11-21 01:36:28 +0000637#ifdef CONFIG_ACPI
638__printf(3, 4)
639void acpi_handle_printk(const char *level, acpi_handle handle,
640 const char *fmt, ...);
641#else /* !CONFIG_ACPI */
642static inline __printf(3, 4) void
643acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
644#endif /* !CONFIG_ACPI */
645
Bjørn Mork45fef5b2014-05-22 12:47:47 +0200646#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
647__printf(3, 4)
648void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
649#else
650#define __acpi_handle_debug(descriptor, handle, fmt, ...) \
651 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
652#endif
653
Toshi Kanifbfddae2012-11-21 01:36:28 +0000654/*
655 * acpi_handle_<level>: Print message with ACPI prefix and object path
656 *
657 * These interfaces acquire the global namespace mutex to obtain an object
658 * path. In interrupt context, it shows the object path as <n/a>.
659 */
660#define acpi_handle_emerg(handle, fmt, ...) \
661 acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
662#define acpi_handle_alert(handle, fmt, ...) \
663 acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
664#define acpi_handle_crit(handle, fmt, ...) \
665 acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
666#define acpi_handle_err(handle, fmt, ...) \
667 acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
668#define acpi_handle_warn(handle, fmt, ...) \
669 acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
670#define acpi_handle_notice(handle, fmt, ...) \
671 acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
672#define acpi_handle_info(handle, fmt, ...) \
673 acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
674
Bjørn Mork45fef5b2014-05-22 12:47:47 +0200675#if defined(DEBUG)
Toshi Kanifbfddae2012-11-21 01:36:28 +0000676#define acpi_handle_debug(handle, fmt, ...) \
677 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
678#else
Bjørn Mork45fef5b2014-05-22 12:47:47 +0200679#if defined(CONFIG_DYNAMIC_DEBUG)
680#define acpi_handle_debug(handle, fmt, ...) \
681do { \
682 DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
683 if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
684 __acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
685 ##__VA_ARGS__); \
686} while (0)
687#else
Toshi Kanifbfddae2012-11-21 01:36:28 +0000688#define acpi_handle_debug(handle, fmt, ...) \
689({ \
690 if (0) \
691 acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
692 0; \
693})
694#endif
Bjørn Mork45fef5b2014-05-22 12:47:47 +0200695#endif
Toshi Kanifbfddae2012-11-21 01:36:28 +0000696
Rafael J. Wysockif028d522014-11-03 23:39:41 +0100697struct acpi_gpio_params {
698 unsigned int crs_entry_index;
699 unsigned int line_index;
700 bool active_low;
701};
702
703struct acpi_gpio_mapping {
704 const char *name;
705 const struct acpi_gpio_params *data;
706 unsigned int size;
707};
708
709#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
710int acpi_dev_add_driver_gpios(struct acpi_device *adev,
711 const struct acpi_gpio_mapping *gpios);
712
713static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
714{
715 if (adev)
716 adev->driver_gpios = NULL;
717}
718#else
719static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
720 const struct acpi_gpio_mapping *gpios)
721{
722 return -ENXIO;
723}
724static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
725#endif
726
Mika Westerbergffdcd952014-10-21 13:33:55 +0200727/* Device properties */
728
729#define MAX_ACPI_REFERENCE_ARGS 8
730struct acpi_reference_args {
731 struct acpi_device *adev;
732 size_t nargs;
733 u64 args[MAX_ACPI_REFERENCE_ARGS];
734};
735
736#ifdef CONFIG_ACPI
737int acpi_dev_get_property(struct acpi_device *adev, const char *name,
738 acpi_object_type type, const union acpi_object **obj);
739int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
740 acpi_object_type type,
741 const union acpi_object **obj);
Rafael J. Wysocki60ba0322014-11-05 00:29:07 +0100742int acpi_dev_get_property_reference(struct acpi_device *adev,
743 const char *name, size_t index,
Mika Westerbergffdcd952014-10-21 13:33:55 +0200744 struct acpi_reference_args *args);
Rafael J. Wysockib31384f2014-11-04 01:28:56 +0100745
746int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
747 void **valptr);
748int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
749 enum dev_prop_type proptype, void *val);
750int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
751 enum dev_prop_type proptype, void *val, size_t nval);
Rafael J. Wysocki8a0662d2014-11-04 14:03:59 +0100752
753struct acpi_device *acpi_get_next_child(struct device *dev,
754 struct acpi_device *child);
Mika Westerbergffdcd952014-10-21 13:33:55 +0200755#else
756static inline int acpi_dev_get_property(struct acpi_device *adev,
757 const char *name, acpi_object_type type,
758 const union acpi_object **obj)
759{
760 return -ENXIO;
761}
762static inline int acpi_dev_get_property_array(struct acpi_device *adev,
763 const char *name,
764 acpi_object_type type,
765 const union acpi_object **obj)
766{
767 return -ENXIO;
768}
769static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
770 const char *name, const char *cells_name,
771 size_t index, struct acpi_reference_args *args)
772{
773 return -ENXIO;
774}
Rafael J. Wysockib31384f2014-11-04 01:28:56 +0100775
776static inline int acpi_dev_prop_get(struct acpi_device *adev,
777 const char *propname,
778 void **valptr)
779{
780 return -ENXIO;
781}
782
783static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
784 const char *propname,
785 enum dev_prop_type proptype,
786 void *val)
787{
788 return -ENXIO;
789}
790
791static inline int acpi_dev_prop_read(struct acpi_device *adev,
792 const char *propname,
793 enum dev_prop_type proptype,
794 void *val, size_t nval)
795{
796 return -ENXIO;
797}
798
Rafael J. Wysocki8a0662d2014-11-04 14:03:59 +0100799static inline struct acpi_device *acpi_get_next_child(struct device *dev,
800 struct acpi_device *child)
801{
802 return NULL;
803}
804
Mika Westerbergffdcd952014-10-21 13:33:55 +0200805#endif
806
Len Brown25be5e62005-05-27 04:21:50 -0400807#endif /*_LINUX_ACPI_H*/