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1da177e4 LT |
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 | ||
5b327265 | 29 | #include <linux/device.h> |
1da177e4 LT |
30 | |
31 | #include <acpi/acpi.h> | |
32 | ||
33 | #define PREFIX "ACPI: " | |
34 | ||
35 | /* TBD: Make dynamic */ | |
36 | #define ACPI_MAX_HANDLES 10 | |
37 | struct acpi_handle_list { | |
4be44fcd LB |
38 | u32 count; |
39 | acpi_handle handles[ACPI_MAX_HANDLES]; | |
1da177e4 LT |
40 | }; |
41 | ||
1da177e4 LT |
42 | /* acpi_utils.h */ |
43 | acpi_status | |
4be44fcd LB |
44 | acpi_extract_package(union acpi_object *package, |
45 | struct acpi_buffer *format, struct acpi_buffer *buffer); | |
1da177e4 | 46 | acpi_status |
4be44fcd LB |
47 | acpi_evaluate_integer(acpi_handle handle, |
48 | acpi_string pathname, | |
49 | struct acpi_object_list *arguments, unsigned long *data); | |
1da177e4 | 50 | acpi_status |
4be44fcd LB |
51 | acpi_evaluate_reference(acpi_handle handle, |
52 | acpi_string pathname, | |
53 | struct acpi_object_list *arguments, | |
54 | struct acpi_handle_list *list); | |
1da177e4 | 55 | |
76f58584 | 56 | #ifdef CONFIG_ACPI |
1da177e4 LT |
57 | |
58 | #include <linux/proc_fs.h> | |
59 | ||
60 | #define ACPI_BUS_FILE_ROOT "acpi" | |
4be44fcd | 61 | extern struct proc_dir_entry *acpi_root_dir; |
1da177e4 LT |
62 | |
63 | enum acpi_bus_removal_type { | |
4be44fcd | 64 | ACPI_BUS_REMOVAL_NORMAL = 0, |
1da177e4 LT |
65 | ACPI_BUS_REMOVAL_EJECT, |
66 | ACPI_BUS_REMOVAL_SUPRISE, | |
67 | ACPI_BUS_REMOVAL_TYPE_COUNT | |
68 | }; | |
69 | ||
70 | enum acpi_bus_device_type { | |
4be44fcd | 71 | ACPI_BUS_TYPE_DEVICE = 0, |
1da177e4 LT |
72 | ACPI_BUS_TYPE_POWER, |
73 | ACPI_BUS_TYPE_PROCESSOR, | |
74 | ACPI_BUS_TYPE_THERMAL, | |
75 | ACPI_BUS_TYPE_SYSTEM, | |
76 | ACPI_BUS_TYPE_POWER_BUTTON, | |
77 | ACPI_BUS_TYPE_SLEEP_BUTTON, | |
78 | ACPI_BUS_DEVICE_TYPE_COUNT | |
79 | }; | |
80 | ||
81 | struct acpi_driver; | |
82 | struct acpi_device; | |
83 | ||
1da177e4 LT |
84 | /* |
85 | * ACPI Driver | |
86 | * ----------- | |
87 | */ | |
88 | ||
4be44fcd LB |
89 | typedef int (*acpi_op_add) (struct acpi_device * device); |
90 | typedef int (*acpi_op_remove) (struct acpi_device * device, int type); | |
91 | typedef int (*acpi_op_lock) (struct acpi_device * device, int type); | |
92 | typedef int (*acpi_op_start) (struct acpi_device * device); | |
93 | typedef int (*acpi_op_stop) (struct acpi_device * device, int type); | |
5d9464a4 PM |
94 | typedef int (*acpi_op_suspend) (struct acpi_device * device, pm_message_t state); |
95 | typedef int (*acpi_op_resume) (struct acpi_device * device); | |
4be44fcd LB |
96 | typedef int (*acpi_op_scan) (struct acpi_device * device); |
97 | typedef int (*acpi_op_bind) (struct acpi_device * device); | |
98 | typedef int (*acpi_op_unbind) (struct acpi_device * device); | |
5d9464a4 | 99 | typedef int (*acpi_op_shutdown) (struct acpi_device * device); |
1da177e4 | 100 | |
3fb02738 | 101 | struct acpi_bus_ops { |
4be44fcd LB |
102 | u32 acpi_op_add:1; |
103 | u32 acpi_op_remove:1; | |
104 | u32 acpi_op_lock:1; | |
105 | u32 acpi_op_start:1; | |
106 | u32 acpi_op_stop:1; | |
107 | u32 acpi_op_suspend:1; | |
108 | u32 acpi_op_resume:1; | |
109 | u32 acpi_op_scan:1; | |
110 | u32 acpi_op_bind:1; | |
111 | u32 acpi_op_unbind:1; | |
5d9464a4 | 112 | u32 acpi_op_shutdown:1; |
4be44fcd | 113 | u32 reserved:21; |
3fb02738 RS |
114 | }; |
115 | ||
1da177e4 | 116 | struct acpi_device_ops { |
4be44fcd LB |
117 | acpi_op_add add; |
118 | acpi_op_remove remove; | |
119 | acpi_op_lock lock; | |
120 | acpi_op_start start; | |
121 | acpi_op_stop stop; | |
122 | acpi_op_suspend suspend; | |
123 | acpi_op_resume resume; | |
124 | acpi_op_scan scan; | |
125 | acpi_op_bind bind; | |
126 | acpi_op_unbind unbind; | |
5d9464a4 | 127 | acpi_op_shutdown shutdown; |
1da177e4 LT |
128 | }; |
129 | ||
130 | struct acpi_driver { | |
4be44fcd LB |
131 | char name[80]; |
132 | char class[80]; | |
4be44fcd LB |
133 | char *ids; /* Supported Hardware IDs */ |
134 | struct acpi_device_ops ops; | |
d43ec68e | 135 | struct device_driver drv; |
1890a97a | 136 | struct module *owner; |
1da177e4 LT |
137 | }; |
138 | ||
139 | /* | |
140 | * ACPI Device | |
141 | * ----------- | |
142 | */ | |
143 | ||
144 | /* Status (_STA) */ | |
145 | ||
146 | struct acpi_device_status { | |
4be44fcd LB |
147 | u32 present:1; |
148 | u32 enabled:1; | |
149 | u32 show_in_ui:1; | |
150 | u32 functional:1; | |
151 | u32 battery_present:1; | |
152 | u32 reserved:27; | |
1da177e4 LT |
153 | }; |
154 | ||
1da177e4 LT |
155 | /* Flags */ |
156 | ||
157 | struct acpi_device_flags { | |
4be44fcd LB |
158 | u32 dynamic_status:1; |
159 | u32 hardware_id:1; | |
160 | u32 compatible_ids:1; | |
161 | u32 bus_address:1; | |
162 | u32 unique_id:1; | |
163 | u32 removable:1; | |
164 | u32 ejectable:1; | |
165 | u32 lockable:1; | |
166 | u32 suprise_removal_ok:1; | |
167 | u32 power_manageable:1; | |
168 | u32 performance_manageable:1; | |
169 | u32 wake_capable:1; /* Wakeup(_PRW) supported? */ | |
0feabb01 KK |
170 | u32 force_power_state:1; |
171 | u32 reserved:19; | |
1da177e4 LT |
172 | }; |
173 | ||
1da177e4 LT |
174 | /* File System */ |
175 | ||
176 | struct acpi_device_dir { | |
4be44fcd | 177 | struct proc_dir_entry *entry; |
1da177e4 LT |
178 | }; |
179 | ||
180 | #define acpi_device_dir(d) ((d)->dir.entry) | |
181 | ||
1da177e4 LT |
182 | /* Plug and Play */ |
183 | ||
4be44fcd LB |
184 | typedef char acpi_bus_id[5]; |
185 | typedef unsigned long acpi_bus_address; | |
bb095854 | 186 | typedef char acpi_hardware_id[15]; |
4be44fcd LB |
187 | typedef char acpi_unique_id[9]; |
188 | typedef char acpi_device_name[40]; | |
189 | typedef char acpi_device_class[20]; | |
1da177e4 LT |
190 | |
191 | struct acpi_device_pnp { | |
4be44fcd LB |
192 | acpi_bus_id bus_id; /* Object name */ |
193 | acpi_bus_address bus_address; /* _ADR */ | |
194 | acpi_hardware_id hardware_id; /* _HID */ | |
195 | struct acpi_compatible_id_list *cid_list; /* _CIDs */ | |
196 | acpi_unique_id unique_id; /* _UID */ | |
197 | acpi_device_name device_name; /* Driver-determined */ | |
198 | acpi_device_class device_class; /* " */ | |
1da177e4 LT |
199 | }; |
200 | ||
201 | #define acpi_device_bid(d) ((d)->pnp.bus_id) | |
202 | #define acpi_device_adr(d) ((d)->pnp.bus_address) | |
203 | #define acpi_device_hid(d) ((d)->pnp.hardware_id) | |
204 | #define acpi_device_uid(d) ((d)->pnp.unique_id) | |
205 | #define acpi_device_name(d) ((d)->pnp.device_name) | |
206 | #define acpi_device_class(d) ((d)->pnp.device_class) | |
207 | ||
1da177e4 LT |
208 | /* Power Management */ |
209 | ||
210 | struct acpi_device_power_flags { | |
4be44fcd LB |
211 | u32 explicit_get:1; /* _PSC present? */ |
212 | u32 power_resources:1; /* Power resources */ | |
213 | u32 inrush_current:1; /* Serialize Dx->D0 */ | |
214 | u32 power_removed:1; /* Optimize Dx->D0 */ | |
215 | u32 reserved:28; | |
1da177e4 LT |
216 | }; |
217 | ||
218 | struct acpi_device_power_state { | |
219 | struct { | |
4be44fcd LB |
220 | u8 valid:1; |
221 | u8 explicit_set:1; /* _PSx present? */ | |
222 | u8 reserved:6; | |
223 | } flags; | |
224 | int power; /* % Power (compared to D0) */ | |
225 | int latency; /* Dx->D0 time (microseconds) */ | |
226 | struct acpi_handle_list resources; /* Power resources referenced */ | |
1da177e4 LT |
227 | }; |
228 | ||
229 | struct acpi_device_power { | |
4be44fcd | 230 | int state; /* Current state */ |
1da177e4 | 231 | struct acpi_device_power_flags flags; |
4be44fcd | 232 | struct acpi_device_power_state states[4]; /* Power states (D0-D3) */ |
1da177e4 LT |
233 | }; |
234 | ||
1da177e4 LT |
235 | /* Performance Management */ |
236 | ||
237 | struct acpi_device_perf_flags { | |
4be44fcd | 238 | u8 reserved:8; |
1da177e4 LT |
239 | }; |
240 | ||
241 | struct acpi_device_perf_state { | |
242 | struct { | |
4be44fcd LB |
243 | u8 valid:1; |
244 | u8 reserved:7; | |
245 | } flags; | |
246 | u8 power; /* % Power (compared to P0) */ | |
247 | u8 performance; /* % Performance ( " ) */ | |
248 | int latency; /* Px->P0 time (microseconds) */ | |
1da177e4 LT |
249 | }; |
250 | ||
251 | struct acpi_device_perf { | |
4be44fcd | 252 | int state; |
1da177e4 | 253 | struct acpi_device_perf_flags flags; |
4be44fcd | 254 | int state_count; |
1da177e4 LT |
255 | struct acpi_device_perf_state *states; |
256 | }; | |
257 | ||
258 | /* Wakeup Management */ | |
259 | struct acpi_device_wakeup_flags { | |
4be44fcd LB |
260 | u8 valid:1; /* Can successfully enable wakeup? */ |
261 | u8 run_wake:1; /* Run-Wake GPE devices */ | |
1da177e4 LT |
262 | }; |
263 | ||
264 | struct acpi_device_wakeup_state { | |
4be44fcd LB |
265 | u8 enabled:1; |
266 | u8 active:1; | |
1da177e4 LT |
267 | }; |
268 | ||
269 | struct acpi_device_wakeup { | |
4be44fcd | 270 | acpi_handle gpe_device; |
53b3531b | 271 | acpi_integer gpe_number; |
4be44fcd LB |
272 | acpi_integer sleep_state; |
273 | struct acpi_handle_list resources; | |
274 | struct acpi_device_wakeup_state state; | |
275 | struct acpi_device_wakeup_flags flags; | |
1da177e4 LT |
276 | }; |
277 | ||
278 | /* Device */ | |
279 | ||
280 | struct acpi_device { | |
4be44fcd LB |
281 | acpi_handle handle; |
282 | struct acpi_device *parent; | |
283 | struct list_head children; | |
284 | struct list_head node; | |
285 | struct list_head wakeup_list; | |
286 | struct list_head g_list; | |
1da177e4 LT |
287 | struct acpi_device_status status; |
288 | struct acpi_device_flags flags; | |
4be44fcd | 289 | struct acpi_device_pnp pnp; |
1da177e4 LT |
290 | struct acpi_device_power power; |
291 | struct acpi_device_wakeup wakeup; | |
4be44fcd LB |
292 | struct acpi_device_perf performance; |
293 | struct acpi_device_dir dir; | |
294 | struct acpi_device_ops ops; | |
295 | struct acpi_driver *driver; | |
296 | void *driver_data; | |
5b327265 | 297 | struct device dev; |
c4168bff | 298 | struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */ |
96333578 | 299 | enum acpi_bus_removal_type removal_type; /* indicate for different removal type */ |
1da177e4 LT |
300 | }; |
301 | ||
302 | #define acpi_driver_data(d) ((d)->driver_data) | |
d43ec68e PM |
303 | #define to_acpi_device(d) container_of(d, struct acpi_device, dev) |
304 | #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) | |
1da177e4 | 305 | |
1da177e4 LT |
306 | /* |
307 | * Events | |
308 | * ------ | |
309 | */ | |
310 | ||
311 | struct acpi_bus_event { | |
4be44fcd LB |
312 | struct list_head node; |
313 | acpi_device_class device_class; | |
314 | acpi_bus_id bus_id; | |
315 | u32 type; | |
316 | u32 data; | |
1da177e4 LT |
317 | }; |
318 | ||
319 | extern struct subsystem acpi_subsys; | |
320 | ||
321 | /* | |
322 | * External Functions | |
323 | */ | |
324 | ||
325 | int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); | |
326 | void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context); | |
4be44fcd LB |
327 | int acpi_bus_get_status(struct acpi_device *device); |
328 | int acpi_bus_get_power(acpi_handle handle, int *state); | |
329 | int acpi_bus_set_power(acpi_handle handle, int state); | |
330 | int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data); | |
331 | int acpi_bus_receive_event(struct acpi_bus_event *event); | |
332 | int acpi_bus_register_driver(struct acpi_driver *driver); | |
06ea8e08 | 333 | void acpi_bus_unregister_driver(struct acpi_driver *driver); |
4be44fcd LB |
334 | int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent, |
335 | acpi_handle handle, int type); | |
ceaba663 | 336 | int acpi_bus_trim(struct acpi_device *start, int rmdevice); |
4be44fcd | 337 | int acpi_bus_start(struct acpi_device *device); |
c8f7a62c | 338 | acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd); |
4be44fcd | 339 | int acpi_match_ids(struct acpi_device *device, char *ids); |
1da177e4 LT |
340 | int acpi_create_dir(struct acpi_device *); |
341 | void acpi_remove_dir(struct acpi_device *); | |
342 | ||
4e10d12a DSL |
343 | /* |
344 | * Bind physical devices with ACPI devices | |
345 | */ | |
346 | #include <linux/device.h> | |
347 | struct acpi_bus_type { | |
4be44fcd LB |
348 | struct list_head list; |
349 | struct bus_type *bus; | |
350 | /* For general devices under the bus */ | |
351 | int (*find_device) (struct device *, acpi_handle *); | |
4e10d12a | 352 | /* For bridges, such as PCI root bridge, IDE controller */ |
4be44fcd | 353 | int (*find_bridge) (struct device *, acpi_handle *); |
4e10d12a DSL |
354 | }; |
355 | int register_acpi_bus_type(struct acpi_bus_type *); | |
356 | int unregister_acpi_bus_type(struct acpi_bus_type *); | |
357 | struct device *acpi_get_physical_device(acpi_handle); | |
358 | /* helper */ | |
359 | acpi_handle acpi_get_child(acpi_handle, acpi_integer); | |
360 | acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); | |
465ae641 | 361 | #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle)) |
4e10d12a | 362 | |
76f58584 | 363 | #endif /* CONFIG_ACPI */ |
1da177e4 LT |
364 | |
365 | #endif /*__ACPI_BUS_H__*/ |