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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
3 *
4 * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
5 * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 *
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or (at
12 * your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
22 *
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 */
25
26#ifndef __ACPI_BUS_H__
27#define __ACPI_BUS_H__
28
Patrick Mochel5b327262006-05-10 10:33:00 -040029#include <linux/device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
31#include <acpi/acpi.h>
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033/* TBD: Make dynamic */
34#define ACPI_MAX_HANDLES 10
35struct acpi_handle_list {
Len Brown4be44fc2005-08-05 00:44:28 -040036 u32 count;
37 acpi_handle handles[ACPI_MAX_HANDLES];
Linus Torvalds1da177e2005-04-16 15:20:36 -070038};
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040/* acpi_utils.h */
41acpi_status
Len Brown4be44fc2005-08-05 00:44:28 -040042acpi_extract_package(union acpi_object *package,
43 struct acpi_buffer *format, struct acpi_buffer *buffer);
Linus Torvalds1da177e2005-04-16 15:20:36 -070044acpi_status
Len Brown4be44fc2005-08-05 00:44:28 -040045acpi_evaluate_integer(acpi_handle handle,
46 acpi_string pathname,
Matthew Wilcox27663c52008-10-10 02:22:59 -040047 struct acpi_object_list *arguments, unsigned long long *data);
Linus Torvalds1da177e2005-04-16 15:20:36 -070048acpi_status
Len Brown4be44fc2005-08-05 00:44:28 -040049acpi_evaluate_reference(acpi_handle handle,
50 acpi_string pathname,
51 struct acpi_object_list *arguments,
52 struct acpi_handle_list *list);
Toshi Kani275c58d2012-05-23 20:25:19 -060053acpi_status
54acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
55 u32 status_code, struct acpi_buffer *status_buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056
Matthew Garrett38ac0f12012-05-11 16:08:26 +080057struct acpi_pld {
58 unsigned int revision:7; /* 0 */
59 unsigned int ignore_colour:1; /* 7 */
60 unsigned int colour:24; /* 8 */
61 unsigned int width:16; /* 32 */
62 unsigned int height:16; /* 48 */
63 unsigned int user_visible:1; /* 64 */
64 unsigned int dock:1; /* 65 */
65 unsigned int lid:1; /* 66 */
66 unsigned int panel:3; /* 67 */
67 unsigned int vertical_pos:2; /* 70 */
68 unsigned int horizontal_pos:2; /* 72 */
69 unsigned int shape:4; /* 74 */
70 unsigned int group_orientation:1; /* 78 */
71 unsigned int group_token:8; /* 79 */
72 unsigned int group_position:8; /* 87 */
73 unsigned int bay:1; /* 95 */
74 unsigned int ejectable:1; /* 96 */
75 unsigned int ospm_eject_required:1; /* 97 */
76 unsigned int cabinet_number:8; /* 98 */
77 unsigned int card_cage_number:8; /* 106 */
78 unsigned int reference:1; /* 114 */
79 unsigned int rotation:4; /* 115 */
80 unsigned int order:5; /* 119 */
81 unsigned int reserved:4; /* 124 */
82 unsigned int vertical_offset:16; /* 128 */
83 unsigned int horizontal_offset:16; /* 144 */
84} __attribute__((__packed__));
85
86acpi_status
87acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld);
Len Brown76f58582005-08-24 12:10:49 -040088#ifdef CONFIG_ACPI
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90#include <linux/proc_fs.h>
91
92#define ACPI_BUS_FILE_ROOT "acpi"
Len Brown4be44fc2005-08-05 00:44:28 -040093extern struct proc_dir_entry *acpi_root_dir;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
95enum acpi_bus_removal_type {
Len Brown4be44fc2005-08-05 00:44:28 -040096 ACPI_BUS_REMOVAL_NORMAL = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 ACPI_BUS_REMOVAL_EJECT,
98 ACPI_BUS_REMOVAL_SUPRISE,
99 ACPI_BUS_REMOVAL_TYPE_COUNT
100};
101
102enum acpi_bus_device_type {
Len Brown4be44fc2005-08-05 00:44:28 -0400103 ACPI_BUS_TYPE_DEVICE = 0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 ACPI_BUS_TYPE_POWER,
105 ACPI_BUS_TYPE_PROCESSOR,
106 ACPI_BUS_TYPE_THERMAL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 ACPI_BUS_TYPE_POWER_BUTTON,
108 ACPI_BUS_TYPE_SLEEP_BUTTON,
109 ACPI_BUS_DEVICE_TYPE_COUNT
110};
111
112struct acpi_driver;
113struct acpi_device;
114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115/*
116 * ACPI Driver
117 * -----------
118 */
119
Len Brown4be44fc2005-08-05 00:44:28 -0400120typedef int (*acpi_op_add) (struct acpi_device * device);
121typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
Len Brown4be44fc2005-08-05 00:44:28 -0400122typedef int (*acpi_op_start) (struct acpi_device * device);
Len Brown4be44fc2005-08-05 00:44:28 -0400123typedef int (*acpi_op_bind) (struct acpi_device * device);
124typedef int (*acpi_op_unbind) (struct acpi_device * device);
Bjorn Helgaas46ec8592009-03-30 17:48:13 +0000125typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
Rajesh Shah3fb02732005-04-28 00:25:52 -0700127struct acpi_bus_ops {
Len Brown4be44fc2005-08-05 00:44:28 -0400128 u32 acpi_op_add:1;
Len Brown4be44fc2005-08-05 00:44:28 -0400129 u32 acpi_op_start:1;
Rajesh Shah3fb02732005-04-28 00:25:52 -0700130};
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132struct acpi_device_ops {
Len Brown4be44fc2005-08-05 00:44:28 -0400133 acpi_op_add add;
134 acpi_op_remove remove;
Len Brown4be44fc2005-08-05 00:44:28 -0400135 acpi_op_start start;
Len Brown4be44fc2005-08-05 00:44:28 -0400136 acpi_op_bind bind;
137 acpi_op_unbind unbind;
Bjorn Helgaas46ec8592009-03-30 17:48:13 +0000138 acpi_op_notify notify;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139};
140
Bjorn Helgaas6d278132009-04-30 09:35:37 -0600141#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143struct acpi_driver {
Len Brown4be44fc2005-08-05 00:44:28 -0400144 char name[80];
145 char class[80];
Thomas Renninger8c8eb782007-07-23 14:43:32 +0200146 const struct acpi_device_id *ids; /* Supported Hardware IDs */
Bjorn Helgaas6d278132009-04-30 09:35:37 -0600147 unsigned int flags;
Len Brown4be44fc2005-08-05 00:44:28 -0400148 struct acpi_device_ops ops;
Patrick Mocheld43ec682006-12-07 20:56:23 +0800149 struct device_driver drv;
Patrick Mochel1890a972006-12-07 20:56:31 +0800150 struct module *owner;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151};
152
153/*
154 * ACPI Device
155 * -----------
156 */
157
158/* Status (_STA) */
159
160struct acpi_device_status {
Len Brown4be44fc2005-08-05 00:44:28 -0400161 u32 present:1;
162 u32 enabled:1;
163 u32 show_in_ui:1;
164 u32 functional:1;
165 u32 battery_present:1;
166 u32 reserved:27;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167};
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169/* Flags */
170
171struct acpi_device_flags {
Len Brown4be44fc2005-08-05 00:44:28 -0400172 u32 dynamic_status:1;
Len Brown4be44fc2005-08-05 00:44:28 -0400173 u32 bus_address:1;
Len Brown4be44fc2005-08-05 00:44:28 -0400174 u32 removable:1;
175 u32 ejectable:1;
176 u32 lockable:1;
177 u32 suprise_removal_ok:1;
178 u32 power_manageable:1;
179 u32 performance_manageable:1;
Toshi Kanic4753e52012-05-23 20:25:20 -0600180 u32 eject_pending:1;
181 u32 reserved:23;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182};
183
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184/* File System */
185
186struct acpi_device_dir {
Len Brown4be44fc2005-08-05 00:44:28 -0400187 struct proc_dir_entry *entry;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188};
189
190#define acpi_device_dir(d) ((d)->dir.entry)
191
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192/* Plug and Play */
193
Zhao Yakui24c5c4c2009-05-21 16:25:35 +0800194typedef char acpi_bus_id[8];
Len Brown4be44fc2005-08-05 00:44:28 -0400195typedef unsigned long acpi_bus_address;
Len Brown4be44fc2005-08-05 00:44:28 -0400196typedef char acpi_device_name[40];
197typedef char acpi_device_class[20];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
Bjorn Helgaas7f47fa62009-09-21 13:35:19 -0600199struct acpi_hardware_id {
200 struct list_head list;
201 char *id;
202};
203
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204struct acpi_device_pnp {
Len Brown4be44fc2005-08-05 00:44:28 -0400205 acpi_bus_id bus_id; /* Object name */
206 acpi_bus_address bus_address; /* _ADR */
Bob Moore15b8dd52009-06-29 13:39:29 +0800207 char *unique_id; /* _UID */
Bjorn Helgaas7f47fa62009-09-21 13:35:19 -0600208 struct list_head ids; /* _HID and _CIDs */
Len Brown4be44fc2005-08-05 00:44:28 -0400209 acpi_device_name device_name; /* Driver-determined */
210 acpi_device_class device_class; /* " */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211};
212
213#define acpi_device_bid(d) ((d)->pnp.bus_id)
214#define acpi_device_adr(d) ((d)->pnp.bus_address)
Thomas Renninger620e1122010-10-01 10:54:00 +0200215const char *acpi_device_hid(struct acpi_device *device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216#define acpi_device_name(d) ((d)->pnp.device_name)
217#define acpi_device_class(d) ((d)->pnp.device_class)
218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219/* Power Management */
220
221struct acpi_device_power_flags {
Len Brown4be44fc2005-08-05 00:44:28 -0400222 u32 explicit_get:1; /* _PSC present? */
223 u32 power_resources:1; /* Power resources */
224 u32 inrush_current:1; /* Serialize Dx->D0 */
225 u32 power_removed:1; /* Optimize Dx->D0 */
226 u32 reserved:28;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227};
228
229struct acpi_device_power_state {
230 struct {
Len Brown4be44fc2005-08-05 00:44:28 -0400231 u8 valid:1;
232 u8 explicit_set:1; /* _PSx present? */
233 u8 reserved:6;
234 } flags;
235 int power; /* % Power (compared to D0) */
236 int latency; /* Dx->D0 time (microseconds) */
237 struct acpi_handle_list resources; /* Power resources referenced */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238};
239
240struct acpi_device_power {
Len Brown4be44fc2005-08-05 00:44:28 -0400241 int state; /* Current state */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 struct acpi_device_power_flags flags;
Lin Mingb4a03b92011-06-01 23:54:02 +0800243 struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244};
245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246/* Performance Management */
247
248struct acpi_device_perf_flags {
Len Brown4be44fc2005-08-05 00:44:28 -0400249 u8 reserved:8;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250};
251
252struct acpi_device_perf_state {
253 struct {
Len Brown4be44fc2005-08-05 00:44:28 -0400254 u8 valid:1;
255 u8 reserved:7;
256 } flags;
257 u8 power; /* % Power (compared to P0) */
258 u8 performance; /* % Performance ( " ) */
259 int latency; /* Px->P0 time (microseconds) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260};
261
262struct acpi_device_perf {
Len Brown4be44fc2005-08-05 00:44:28 -0400263 int state;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 struct acpi_device_perf_flags flags;
Len Brown4be44fc2005-08-05 00:44:28 -0400265 int state_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 struct acpi_device_perf_state *states;
267};
268
269/* Wakeup Management */
270struct acpi_device_wakeup_flags {
Len Brown4be44fc2005-08-05 00:44:28 -0400271 u8 valid:1; /* Can successfully enable wakeup? */
272 u8 run_wake:1; /* Run-Wake GPE devices */
Rafael J. Wysockib67ea762010-02-17 23:44:09 +0100273 u8 notifier_present:1; /* Wake-up notify handler has been installed */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274};
275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276struct acpi_device_wakeup {
Len Brown4be44fc2005-08-05 00:44:28 -0400277 acpi_handle gpe_device;
Lin Ming439913f2010-01-28 10:53:19 +0800278 u64 gpe_number;
279 u64 sleep_state;
Len Brown4be44fc2005-08-05 00:44:28 -0400280 struct acpi_handle_list resources;
Len Brown4be44fc2005-08-05 00:44:28 -0400281 struct acpi_device_wakeup_flags flags;
Rafael J. Wysocki9b83ccd2009-09-08 23:15:31 +0200282 int prepare_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283};
284
285/* Device */
286
287struct acpi_device {
Bjorn Helgaascaaa6ef2009-09-21 19:29:10 +0000288 int device_type;
289 acpi_handle handle; /* no handle for fixed hardware */
Len Brown4be44fc2005-08-05 00:44:28 -0400290 struct acpi_device *parent;
291 struct list_head children;
292 struct list_head node;
293 struct list_head wakeup_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 struct acpi_device_status status;
295 struct acpi_device_flags flags;
Len Brown4be44fc2005-08-05 00:44:28 -0400296 struct acpi_device_pnp pnp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 struct acpi_device_power power;
298 struct acpi_device_wakeup wakeup;
Len Brown4be44fc2005-08-05 00:44:28 -0400299 struct acpi_device_perf performance;
300 struct acpi_device_dir dir;
301 struct acpi_device_ops ops;
302 struct acpi_driver *driver;
303 void *driver_data;
Patrick Mochel5b327262006-05-10 10:33:00 -0400304 struct device dev;
Li Shaohuac4168bf2006-12-07 20:56:41 +0800305 struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
Len Brownfd350942007-05-09 23:34:35 -0400306 enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307};
308
Pavel Machekdb89b4f2008-09-22 14:37:34 -0700309static inline void *acpi_driver_data(struct acpi_device *d)
310{
311 return d->driver_data;
312}
313
Patrick Mocheld43ec682006-12-07 20:56:23 +0800314#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
315#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
David Brownell55955aa2007-05-08 00:28:35 -0700317/* acpi_device.dev.bus == &acpi_bus_type */
318extern struct bus_type acpi_bus_type;
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320/*
321 * Events
322 * ------
323 */
324
325struct acpi_bus_event {
Len Brown4be44fc2005-08-05 00:44:28 -0400326 struct list_head node;
327 acpi_device_class device_class;
328 acpi_bus_id bus_id;
329 u32 type;
330 u32 data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331};
332
Toshi Kanic4753e52012-05-23 20:25:20 -0600333struct acpi_eject_event {
334 acpi_handle handle;
335 u32 event;
336};
337
Greg Kroah-Hartman99e0d2f2007-11-02 16:19:59 -0700338extern struct kobject *acpi_kobj;
Zhang Rui962ce8c2007-08-23 01:24:31 +0800339extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
Bob Moore8e4319c2009-06-29 13:43:27 +0800340void acpi_bus_private_data_handler(acpi_handle, void *);
Zhang Rui20733932008-01-17 15:51:21 +0800341int acpi_bus_get_private_data(acpi_handle, void **);
Zhang Rui9ee85242008-01-25 14:48:06 +0800342extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
343extern int register_acpi_notifier(struct notifier_block *);
344extern int unregister_acpi_notifier(struct notifier_block *);
Shaohua Li6bd00a62008-08-28 10:04:29 +0800345
346extern int register_acpi_bus_notifier(struct notifier_block *nb);
347extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348/*
349 * External Functions
350 */
351
352int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
Bob Moore8e4319c2009-06-29 13:43:27 +0800353void acpi_bus_data_handler(acpi_handle handle, void *context);
Bjorn Helgaas402ac532009-09-21 19:30:01 +0000354acpi_status acpi_bus_get_status_handle(acpi_handle handle,
355 unsigned long long *sta);
Len Brown4be44fc2005-08-05 00:44:28 -0400356int acpi_bus_get_status(struct acpi_device *device);
Len Brown4be44fc2005-08-05 00:44:28 -0400357int acpi_bus_set_power(acpi_handle handle, int state);
Rafael J. Wysocki25eed402010-11-25 00:09:15 +0100358int acpi_bus_update_power(acpi_handle handle, int *state_p);
Rafael J. Wysocki3737b2b2008-07-07 03:30:55 +0200359bool acpi_bus_power_manageable(acpi_handle handle);
Rafael J. Wysockieb9d0fe2008-07-07 03:34:48 +0200360bool acpi_bus_can_wakeup(acpi_handle handle);
Lin Ming0090def2012-03-29 14:09:39 +0800361int acpi_power_resource_register_device(struct device *dev, acpi_handle handle);
362void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle);
Len Brown14e04fb2007-08-23 15:20:26 -0400363#ifdef CONFIG_ACPI_PROC_EVENT
364int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
Alexey Starikovskiy8db85d42007-09-26 19:43:16 +0400365int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data);
Len Brown4be44fc2005-08-05 00:44:28 -0400366int acpi_bus_receive_event(struct acpi_bus_event *event);
Len Brown14e04fb2007-08-23 15:20:26 -0400367#else
368static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
369 { return 0; }
370#endif
Len Brown4be44fc2005-08-05 00:44:28 -0400371int acpi_bus_register_driver(struct acpi_driver *driver);
Bjorn Helgaas06ea8e082006-04-27 05:25:00 -0400372void acpi_bus_unregister_driver(struct acpi_driver *driver);
Len Brown4be44fc2005-08-05 00:44:28 -0400373int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent,
374 acpi_handle handle, int type);
Toshi Kanic4753e52012-05-23 20:25:20 -0600375void acpi_bus_hot_remove_device(void *context);
Kristen Accardiceaba662006-02-23 17:56:01 -0800376int acpi_bus_trim(struct acpi_device *start, int rmdevice);
Len Brown4be44fc2005-08-05 00:44:28 -0400377int acpi_bus_start(struct acpi_device *device);
Len Brownfd350942007-05-09 23:34:35 -0400378acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
Thomas Renninger8c8eb782007-07-23 14:43:32 +0200379int acpi_match_device_ids(struct acpi_device *device,
380 const struct acpi_device_id *ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381int acpi_create_dir(struct acpi_device *);
382void acpi_remove_dir(struct acpi_device *);
383
David Shaohua Li4e10d122005-03-18 18:45:35 -0500384/*
385 * Bind physical devices with ACPI devices
386 */
David Shaohua Li4e10d122005-03-18 18:45:35 -0500387struct acpi_bus_type {
Len Brown4be44fc2005-08-05 00:44:28 -0400388 struct list_head list;
389 struct bus_type *bus;
390 /* For general devices under the bus */
391 int (*find_device) (struct device *, acpi_handle *);
David Shaohua Li4e10d122005-03-18 18:45:35 -0500392 /* For bridges, such as PCI root bridge, IDE controller */
Len Brown4be44fc2005-08-05 00:44:28 -0400393 int (*find_bridge) (struct device *, acpi_handle *);
David Shaohua Li4e10d122005-03-18 18:45:35 -0500394};
395int register_acpi_bus_type(struct acpi_bus_type *);
396int unregister_acpi_bus_type(struct acpi_bus_type *);
397struct device *acpi_get_physical_device(acpi_handle);
Thomas Renninger22c13f92008-08-01 17:37:54 +0200398
Alex Chiang76d56de2009-07-23 17:03:00 -0600399struct acpi_pci_root {
400 struct list_head node;
401 struct acpi_device * device;
402 struct acpi_pci_id id;
403 struct pci_bus *bus;
404 u16 segment;
Bjorn Helgaas6ad95512010-03-11 12:20:06 -0700405 struct resource secondary; /* downstream bus range */
Alex Chiang76d56de2009-07-23 17:03:00 -0600406
407 u32 osc_support_set; /* _OSC state of support bits */
408 u32 osc_control_set; /* _OSC state of control bits */
Jiang Liuf4b57a32012-06-22 14:55:16 +0800409 phys_addr_t mcfg_addr;
Alex Chiang76d56de2009-07-23 17:03:00 -0600410};
411
David Shaohua Li4e10d122005-03-18 18:45:35 -0500412/* helper */
Lin Ming439913f2010-01-28 10:53:19 +0800413acpi_handle acpi_get_child(acpi_handle, u64);
Alexander Chiang27558202009-06-10 19:55:14 +0000414int acpi_is_root_bridge(acpi_handle);
David Shaohua Li4e10d122005-03-18 18:45:35 -0500415acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
Alex Chiang76d56de2009-07-23 17:03:00 -0600416struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
Benjamin Herrenschmidt465ae642006-11-11 17:18:42 +1100417#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
David Shaohua Li4e10d122005-03-18 18:45:35 -0500418
Rafael J. Wysockib67ea762010-02-17 23:44:09 +0100419int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
420int acpi_disable_wakeup_device_power(struct acpi_device *dev);
421
Rafael J. Wysockiaa338602011-02-11 00:06:54 +0100422#ifdef CONFIG_PM
Huang Yingee85f542012-06-23 10:23:48 +0800423int acpi_pm_device_sleep_state(struct device *, int *, int);
Rafael J. Wysocki761afb82010-10-14 23:24:13 +0200424#else
Huang Yingee85f542012-06-23 10:23:48 +0800425static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
Rafael J. Wysocki296699d2007-07-29 23:27:18 +0200426{
427 if (p)
428 *p = ACPI_STATE_D0;
Huang Yingee85f542012-06-23 10:23:48 +0800429 return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3) ? m : ACPI_STATE_D0;
Rafael J. Wysocki296699d2007-07-29 23:27:18 +0200430}
Rafael J. Wysocki761afb82010-10-14 23:24:13 +0200431#endif
432
433#ifdef CONFIG_PM_SLEEP
Lin Mingb24e5092012-03-27 15:43:25 +0800434int acpi_pm_device_run_wake(struct device *, bool);
Rafael J. Wysocki761afb82010-10-14 23:24:13 +0200435int acpi_pm_device_sleep_wake(struct device *, bool);
436#else
Lin Mingb24e5092012-03-27 15:43:25 +0800437static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
438{
439 return -ENODEV;
440}
David Howellsf7a1b862008-07-08 15:00:54 +0100441static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
442{
443 return -ENODEV;
444}
Rafael J. Wysocki761afb82010-10-14 23:24:13 +0200445#endif
Shaohua Lifd4aff12007-07-17 22:40:25 +0200446
Matthew Garrett66886d62012-05-11 16:08:25 +0800447#else /* CONFIG_ACPI */
448
Len Brown7ae30982012-06-04 00:29:11 -0400449static inline int register_acpi_bus_type(void *bus) { return 0; }
450static inline int unregister_acpi_bus_type(void *bus) { return 0; }
Matthew Garrett66886d62012-05-11 16:08:25 +0800451
Len Brownfd350942007-05-09 23:34:35 -0400452#endif /* CONFIG_ACPI */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453
454#endif /*__ACPI_BUS_H__*/