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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/acpi/acpi_bus.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/acpi/acpi_bus.h')
-rw-r--r--include/acpi/acpi_bus.h341
1 files changed, 341 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
new file mode 100644
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1/*
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
29#include <linux/kobject.h>
30
31#include <acpi/acpi.h>
32
33#define PREFIX "ACPI: "
34
35/* TBD: Make dynamic */
36#define ACPI_MAX_HANDLES 10
37struct acpi_handle_list {
38 u32 count;
39 acpi_handle handles[ACPI_MAX_HANDLES];
40};
41
42
43/* acpi_utils.h */
44acpi_status
45acpi_extract_package (
46 union acpi_object *package,
47 struct acpi_buffer *format,
48 struct acpi_buffer *buffer);
49acpi_status
50acpi_evaluate_integer (
51 acpi_handle handle,
52 acpi_string pathname,
53 struct acpi_object_list *arguments,
54 unsigned long *data);
55acpi_status
56acpi_evaluate_reference (
57 acpi_handle handle,
58 acpi_string pathname,
59 struct acpi_object_list *arguments,
60 struct acpi_handle_list *list);
61
62
63#ifdef CONFIG_ACPI_BUS
64
65#include <linux/proc_fs.h>
66
67#define ACPI_BUS_FILE_ROOT "acpi"
68extern struct proc_dir_entry *acpi_root_dir;
69extern FADT_DESCRIPTOR acpi_fadt;
70
71enum acpi_bus_removal_type {
72 ACPI_BUS_REMOVAL_NORMAL = 0,
73 ACPI_BUS_REMOVAL_EJECT,
74 ACPI_BUS_REMOVAL_SUPRISE,
75 ACPI_BUS_REMOVAL_TYPE_COUNT
76};
77
78enum acpi_bus_device_type {
79 ACPI_BUS_TYPE_DEVICE = 0,
80 ACPI_BUS_TYPE_POWER,
81 ACPI_BUS_TYPE_PROCESSOR,
82 ACPI_BUS_TYPE_THERMAL,
83 ACPI_BUS_TYPE_SYSTEM,
84 ACPI_BUS_TYPE_POWER_BUTTON,
85 ACPI_BUS_TYPE_SLEEP_BUTTON,
86 ACPI_BUS_DEVICE_TYPE_COUNT
87};
88
89struct acpi_driver;
90struct acpi_device;
91
92
93/*
94 * ACPI Driver
95 * -----------
96 */
97
98typedef int (*acpi_op_add) (struct acpi_device *device);
99typedef int (*acpi_op_remove) (struct acpi_device *device, int type);
100typedef int (*acpi_op_lock) (struct acpi_device *device, int type);
101typedef int (*acpi_op_start) (struct acpi_device *device);
102typedef int (*acpi_op_stop) (struct acpi_device *device, int type);
103typedef int (*acpi_op_suspend) (struct acpi_device *device, int state);
104typedef int (*acpi_op_resume) (struct acpi_device *device, int state);
105typedef int (*acpi_op_scan) (struct acpi_device *device);
106typedef int (*acpi_op_bind) (struct acpi_device *device);
107typedef int (*acpi_op_unbind) (struct acpi_device *device);
108typedef int (*acpi_op_match) (struct acpi_device *device,
109 struct acpi_driver *driver);
110
111struct acpi_device_ops {
112 acpi_op_add add;
113 acpi_op_remove remove;
114 acpi_op_lock lock;
115 acpi_op_start start;
116 acpi_op_stop stop;
117 acpi_op_suspend suspend;
118 acpi_op_resume resume;
119 acpi_op_scan scan;
120 acpi_op_bind bind;
121 acpi_op_unbind unbind;
122 acpi_op_match match;
123};
124
125struct acpi_driver {
126 struct list_head node;
127 char name[80];
128 char class[80];
129 atomic_t references;
130 char *ids; /* Supported Hardware IDs */
131 struct acpi_device_ops ops;
132};
133
134/*
135 * ACPI Device
136 * -----------
137 */
138
139/* Status (_STA) */
140
141struct acpi_device_status {
142 u32 present:1;
143 u32 enabled:1;
144 u32 show_in_ui:1;
145 u32 functional:1;
146 u32 battery_present:1;
147 u32 reserved:27;
148};
149
150
151/* Flags */
152
153struct acpi_device_flags {
154 u32 dynamic_status:1;
155 u32 hardware_id:1;
156 u32 compatible_ids:1;
157 u32 bus_address:1;
158 u32 unique_id:1;
159 u32 removable:1;
160 u32 ejectable:1;
161 u32 lockable:1;
162 u32 suprise_removal_ok:1;
163 u32 power_manageable:1;
164 u32 performance_manageable:1;
165 u32 wake_capable:1; /* Wakeup(_PRW) supported? */
166 u32 reserved:20;
167};
168
169
170/* File System */
171
172struct acpi_device_dir {
173 struct proc_dir_entry *entry;
174};
175
176#define acpi_device_dir(d) ((d)->dir.entry)
177
178
179/* Plug and Play */
180
181typedef char acpi_bus_id[5];
182typedef unsigned long acpi_bus_address;
183typedef char acpi_hardware_id[9];
184typedef char acpi_unique_id[9];
185typedef char acpi_device_name[40];
186typedef char acpi_device_class[20];
187
188struct acpi_device_pnp {
189 acpi_bus_id bus_id; /* Object name */
190 acpi_bus_address bus_address; /* _ADR */
191 acpi_hardware_id hardware_id; /* _HID */
192 struct acpi_compatible_id_list *cid_list; /* _CIDs */
193 acpi_unique_id unique_id; /* _UID */
194 acpi_device_name device_name; /* Driver-determined */
195 acpi_device_class device_class; /* " */
196};
197
198#define acpi_device_bid(d) ((d)->pnp.bus_id)
199#define acpi_device_adr(d) ((d)->pnp.bus_address)
200#define acpi_device_hid(d) ((d)->pnp.hardware_id)
201#define acpi_device_uid(d) ((d)->pnp.unique_id)
202#define acpi_device_name(d) ((d)->pnp.device_name)
203#define acpi_device_class(d) ((d)->pnp.device_class)
204
205
206/* Power Management */
207
208struct acpi_device_power_flags {
209 u32 explicit_get:1; /* _PSC present? */
210 u32 power_resources:1; /* Power resources */
211 u32 inrush_current:1; /* Serialize Dx->D0 */
212 u32 power_removed:1; /* Optimize Dx->D0 */
213 u32 reserved:28;
214};
215
216struct acpi_device_power_state {
217 struct {
218 u8 valid:1;
219 u8 explicit_set:1; /* _PSx present? */
220 u8 reserved:6;
221 } flags;
222 int power; /* % Power (compared to D0) */
223 int latency; /* Dx->D0 time (microseconds) */
224 struct acpi_handle_list resources; /* Power resources referenced */
225};
226
227struct acpi_device_power {
228 int state; /* Current state */
229 struct acpi_device_power_flags flags;
230 struct acpi_device_power_state states[4]; /* Power states (D0-D3) */
231};
232
233
234/* Performance Management */
235
236struct acpi_device_perf_flags {
237 u8 reserved:8;
238};
239
240struct acpi_device_perf_state {
241 struct {
242 u8 valid:1;
243 u8 reserved:7;
244 } flags;
245 u8 power; /* % Power (compared to P0) */
246 u8 performance; /* % Performance ( " ) */
247 int latency; /* Px->P0 time (microseconds) */
248};
249
250struct acpi_device_perf {
251 int state;
252 struct acpi_device_perf_flags flags;
253 int state_count;
254 struct acpi_device_perf_state *states;
255};
256
257/* Wakeup Management */
258struct acpi_device_wakeup_flags {
259 u8 valid:1; /* Can successfully enable wakeup? */
260 u8 run_wake:1; /* Run-Wake GPE devices */
261};
262
263struct acpi_device_wakeup_state {
264 u8 enabled:1;
265 u8 active:1;
266};
267
268struct acpi_device_wakeup {
269 acpi_handle gpe_device;
270 acpi_integer gpe_number;;
271 acpi_integer sleep_state;
272 struct acpi_handle_list resources;
273 struct acpi_device_wakeup_state state;
274 struct acpi_device_wakeup_flags flags;
275};
276
277/* Device */
278
279struct acpi_device {
280 acpi_handle handle;
281 struct acpi_device *parent;
282 struct list_head children;
283 struct list_head node;
284 struct list_head wakeup_list;
285 struct list_head g_list;
286 struct acpi_device_status status;
287 struct acpi_device_flags flags;
288 struct acpi_device_pnp pnp;
289 struct acpi_device_power power;
290 struct acpi_device_wakeup wakeup;
291 struct acpi_device_perf performance;
292 struct acpi_device_dir dir;
293 struct acpi_device_ops ops;
294 struct acpi_driver *driver;
295 void *driver_data;
296 struct kobject kobj;
297};
298
299#define acpi_driver_data(d) ((d)->driver_data)
300
301
302/*
303 * Events
304 * ------
305 */
306
307struct acpi_bus_event {
308 struct list_head node;
309 acpi_device_class device_class;
310 acpi_bus_id bus_id;
311 u32 type;
312 u32 data;
313};
314
315extern struct subsystem acpi_subsys;
316
317/*
318 * External Functions
319 */
320
321int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
322void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context);
323int acpi_bus_get_status (struct acpi_device *device);
324int acpi_bus_get_power (acpi_handle handle, int *state);
325int acpi_bus_set_power (acpi_handle handle, int state);
326int acpi_bus_generate_event (struct acpi_device *device, u8 type, int data);
327int acpi_bus_receive_event (struct acpi_bus_event *event);
328int acpi_bus_register_driver (struct acpi_driver *driver);
329int acpi_bus_unregister_driver (struct acpi_driver *driver);
330int acpi_bus_scan (struct acpi_device *start);
331int acpi_bus_add (struct acpi_device **child, struct acpi_device *parent,
332 acpi_handle handle, int type);
333
334
335int acpi_match_ids (struct acpi_device *device, char *ids);
336int acpi_create_dir(struct acpi_device *);
337void acpi_remove_dir(struct acpi_device *);
338
339#endif /*CONFIG_ACPI_BUS*/
340
341#endif /*__ACPI_BUS_H__*/
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-21 20:34:23 -0400