1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
|
/*
* acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
*
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#ifndef __ACPI_BUS_H__
#define __ACPI_BUS_H__
#include <linux/device.h>
#include <linux/property.h>
/* TBD: Make dynamic */
#define ACPI_MAX_HANDLES 10
struct acpi_handle_list {
u32 count;
acpi_handle handles[ACPI_MAX_HANDLES];
};
/* acpi_utils.h */
acpi_status
acpi_extract_package(union acpi_object *package,
struct acpi_buffer *format, struct acpi_buffer *buffer);
acpi_status
acpi_evaluate_integer(acpi_handle handle,
acpi_string pathname,
struct acpi_object_list *arguments, unsigned long long *data);
acpi_status
acpi_evaluate_reference(acpi_handle handle,
acpi_string pathname,
struct acpi_object_list *arguments,
struct acpi_handle_list *list);
acpi_status
acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
struct acpi_buffer *status_buf);
acpi_status
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
bool acpi_has_method(acpi_handle handle, char *name);
acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
u64 arg);
acpi_status acpi_evaluate_ej0(acpi_handle handle);
acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
bool acpi_ata_match(acpi_handle handle);
bool acpi_bay_match(acpi_handle handle);
bool acpi_dock_match(acpi_handle handle);
bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs);
union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid,
int rev, int func, union acpi_object *argv4);
static inline union acpi_object *
acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func,
union acpi_object *argv4, acpi_object_type type)
{
union acpi_object *obj;
obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4);
if (obj && obj->type != type) {
ACPI_FREE(obj);
obj = NULL;
}
return obj;
}
#define ACPI_INIT_DSM_ARGV4(cnt, eles) \
{ \
.package.type = ACPI_TYPE_PACKAGE, \
.package.count = (cnt), \
.package.elements = (eles) \
}
#ifdef CONFIG_ACPI
#include <linux/proc_fs.h>
#define ACPI_BUS_FILE_ROOT "acpi"
extern struct proc_dir_entry *acpi_root_dir;
enum acpi_bus_device_type {
ACPI_BUS_TYPE_DEVICE = 0,
ACPI_BUS_TYPE_POWER,
ACPI_BUS_TYPE_PROCESSOR,
ACPI_BUS_TYPE_THERMAL,
ACPI_BUS_TYPE_POWER_BUTTON,
ACPI_BUS_TYPE_SLEEP_BUTTON,
ACPI_BUS_DEVICE_TYPE_COUNT
};
struct acpi_driver;
struct acpi_device;
/*
* ACPI Scan Handler
* -----------------
*/
struct acpi_hotplug_profile {
struct kobject kobj;
int (*scan_dependent)(struct acpi_device *adev);
void (*notify_online)(struct acpi_device *adev);
bool enabled:1;
bool demand_offline:1;
};
static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
struct kobject *kobj)
{
return container_of(kobj, struct acpi_hotplug_profile, kobj);
}
struct acpi_scan_handler {
const struct acpi_device_id *ids;
struct list_head list_node;
bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
void (*detach)(struct acpi_device *dev);
void (*bind)(struct device *phys_dev);
void (*unbind)(struct device *phys_dev);
struct acpi_hotplug_profile hotplug;
};
/*
* ACPI Hotplug Context
* --------------------
*/
struct acpi_hotplug_context {
struct acpi_device *self;
int (*notify)(struct acpi_device *, u32);
void (*uevent)(struct acpi_device *, u32);
void (*fixup)(struct acpi_device *);
};
/*
* ACPI Driver
* -----------
*/
typedef int (*acpi_op_add) (struct acpi_device * device);
typedef int (*acpi_op_remove) (struct acpi_device * device);
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
struct acpi_device_ops {
acpi_op_add add;
acpi_op_remove remove;
acpi_op_notify notify;
};
#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
struct acpi_driver {
char name[80];
char class[80];
const struct acpi_device_id *ids; /* Supported Hardware IDs */
unsigned int flags;
struct acpi_device_ops ops;
struct device_driver drv;
struct module *owner;
};
/*
* ACPI Device
* -----------
*/
/* Status (_STA) */
struct acpi_device_status {
u32 present:1;
u32 enabled:1;
u32 show_in_ui:1;
u32 functional:1;
u32 battery_present:1;
u32 reserved:27;
};
/* Flags */
struct acpi_device_flags {
u32 dynamic_status:1;
u32 removable:1;
u32 ejectable:1;
u32 power_manageable:1;
u32 match_driver:1;
u32 initialized:1;
u32 visited:1;
u32 hotplug_notify:1;
u32 is_dock_station:1;
u32 of_compatible_ok:1;
u32 coherent_dma:1;
u32 cca_seen:1;
u32 reserved:20;
};
/* File System */
struct acpi_device_dir {
struct proc_dir_entry *entry;
};
#define acpi_device_dir(d) ((d)->dir.entry)
/* Plug and Play */
typedef char acpi_bus_id[8];
typedef unsigned long acpi_bus_address;
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];
struct acpi_hardware_id {
struct list_head list;
const char *id;
};
struct acpi_pnp_type {
u32 hardware_id:1;
u32 bus_address:1;
u32 platform_id:1;
u32 reserved:29;
};
struct acpi_device_pnp {
acpi_bus_id bus_id; /* Object name */
struct acpi_pnp_type type; /* ID type */
acpi_bus_address bus_address; /* _ADR */
char *unique_id; /* _UID */
struct list_head ids; /* _HID and _CIDs */
acpi_device_name device_name; /* Driver-determined */
acpi_device_class device_class; /* " */
union acpi_object *str_obj; /* unicode string for _STR method */
};
#define acpi_device_bid(d) ((d)->pnp.bus_id)
#define acpi_device_adr(d) ((d)->pnp.bus_address)
|