Rev 1628 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1627 | serge | 1 | |
2 | |||
3 | #include |
||
4 | #include |
||
5 | #include |
||
6 | |||
7 | #include "acpi.h" |
||
8 | |||
9 | |||
10 | |||
11 | |||
12 | |||
13 | #define ACPI_BUS_CLASS "system_bus" |
||
14 | |||
15 | #define ACPI_BUS_DEVICE_NAME "System Bus" |
||
16 | |||
17 | |||
18 | |||
19 | |||
20 | #define STRUCT_TO_INT(s) (*((int*)&s)) |
||
21 | |||
22 | |||
23 | |||
24 | |||
25 | extern struct list_head acpi_device_list; |
||
26 | |||
1867 | serge | 27 | |
28 | DEFINE_MUTEX(acpi_device_lock); |
||
29 | |||
1627 | serge | 30 | |
31 | |||
32 | |||
33 | unsigned int instance_no; |
||
34 | struct list_head node; |
||
35 | }; |
||
36 | |||
37 | |||
38 | |||
39 | |||
40 | char *id; |
||
41 | }; |
||
42 | |||
43 | #define acpi_device_name(d) ((d)->pnp.device_name) |
||
44 | |||
45 | |||
46 | |||
47 | |||
48 | |||
49 | { |
||
50 | #ifdef ACPI_DEBUG_OUTPUT |
||
51 | char prefix[80] = {'\0'}; |
||
52 | ACPI_BUFFER buffer = {sizeof(prefix), prefix}; |
||
53 | AcpiGetName(h, ACPI_FULL_PATHNAME, &buffer); |
||
54 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluate [%s.%s]: %s\n", |
||
55 | (char *) prefix, p, AcpiFormatException(s))); |
||
56 | #else |
||
57 | return; |
||
58 | #endif |
||
59 | } |
||
60 | |||
61 | ACPI_STATUS |
||
62 | |||
63 | ACPI_OBJECT_LIST *arguments, unsigned long long *data) |
||
64 | { |
||
65 | ACPI_STATUS status = AE_OK; |
||
66 | ACPI_OBJECT element; |
||
67 | ACPI_BUFFER buffer = { 0, NULL }; |
||
68 | |||
69 | if (!data) |
||
70 | |||
71 | |||
72 | buffer.Length = sizeof(ACPI_OBJECT); |
||
73 | |||
74 | status = AcpiEvaluateObject(handle, pathname, arguments, &buffer); |
||
75 | if (ACPI_FAILURE(status)) { |
||
76 | acpi_util_eval_error(handle, pathname, status); |
||
77 | return status; |
||
78 | } |
||
79 | |||
80 | if (element.Type != ACPI_TYPE_INTEGER) { |
||
81 | |||
82 | return AE_BAD_DATA; |
||
83 | } |
||
84 | |||
85 | *data = element.Integer.Value; |
||
86 | |||
87 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%llu]\n", *data)); |
||
88 | |||
89 | return AE_OK; |
||
90 | |||
91 | |||
92 | |||
93 | |||
94 | |||
95 | |||
96 | /* TBD */ |
||
97 | |||
98 | return; |
||
99 | |||
100 | |||
101 | int acpi_bus_get_device(ACPI_HANDLE handle, struct acpi_device **device) |
||
102 | |||
103 | ACPI_STATUS status = AE_OK; |
||
104 | |||
105 | if (!device) |
||
106 | |||
107 | return -EINVAL; |
||
108 | }; |
||
109 | |||
110 | /* TBD: Support fixed-feature devices */ |
||
111 | |||
112 | status = AcpiGetData(handle, acpi_bus_data_handler, (void **)device); |
||
113 | |||
114 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", |
||
115 | handle)); |
||
116 | return -ENODEV; |
||
117 | } |
||
118 | return 0; |
||
119 | } |
||
120 | |||
121 | |||
122 | |||
123 | |||
124 | { |
||
125 | ACPI_STATUS status; |
||
126 | |||
127 | status = acpi_evaluate_integer(handle, "_STA", NULL, sta); |
||
128 | |||
129 | { |
||
130 | return AE_OK; |
||
131 | }; |
||
132 | |||
133 | if (status == AE_NOT_FOUND) |
||
134 | |||
135 | *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | |
||
136 | ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; |
||
137 | return AE_OK; |
||
138 | } |
||
139 | return status; |
||
140 | } |
||
141 | |||
142 | |||
143 | |||
144 | |||
145 | |||
146 | -------------------------------------------------------------------------- */ |
||
147 | |||
148 | int acpi_match_device_ids(struct acpi_device *device, |
||
149 | |||
150 | { |
||
151 | const struct acpi_device_ids *id; |
||
152 | struct acpi_hardware_id *hwid; |
||
153 | |||
154 | /* |
||
155 | |||
156 | * driver for it. |
||
157 | */ |
||
158 | // if (!device->status.present) |
||
159 | // return -ENODEV; |
||
160 | |||
161 | for (id = ids; id->id[0]; id++) |
||
162 | |||
163 | if (!strcmp((char *) id->id, hwid->id)) |
||
164 | return 0; |
||
165 | |||
166 | return -ENOENT; |
||
167 | |||
168 | |||
169 | |||
170 | |||
171 | |||
172 | int result; |
||
173 | struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id; |
||
174 | int found = 0; |
||
175 | |||
176 | /* |
||
177 | |||
178 | * ------- |
||
179 | * Link this device to its parent and siblings. |
||
180 | */ |
||
181 | INIT_LIST_HEAD(&device->children); |
||
182 | INIT_LIST_HEAD(&device->node); |
||
183 | |||
184 | new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL); |
||
185 | |||
186 | printk(KERN_ERR PREFIX "Memory allocation error\n"); |
||
187 | return -ENOMEM; |
||
188 | } |
||
189 | |||
190 | mutex_lock(&acpi_device_lock); |
||
191 | |||
192 | * Find suitable bus_id and instance number in acpi_bus_id_list |
||
193 | * If failed, create one and link it into acpi_bus_id_list |
||
194 | */ |
||
195 | list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node) |
||
196 | { |
||
197 | if (!strcmp(acpi_device_bus_id->bus_id, |
||
198 | acpi_device_hid(device))) |
||
199 | { |
||
200 | acpi_device_bus_id->instance_no++; |
||
201 | found = 1; |
||
202 | kfree(new_bus_id); |
||
203 | break; |
||
204 | } |
||
205 | }; |
||
206 | |||
207 | if (!found) |
||
208 | |||
209 | acpi_device_bus_id = new_bus_id; |
||
210 | strcpy(acpi_device_bus_id->bus_id, acpi_device_hid(device)); |
||
211 | acpi_device_bus_id->instance_no = 0; |
||
212 | list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list); |
||
213 | } |
||
214 | |||
215 | // dev_set_name(&device->dev, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no); |
||
216 | |||
217 | if (device->parent) |
||
218 | |||
219 | |||
220 | mutex_unlock(&acpi_device_lock); |
||
221 | |||
222 | // device->dev.bus = &acpi_bus_type; |
||
223 | |||
224 | // result = device_register(&device->dev); |
||
225 | // if (result) { |
||
226 | // dev_err(&device->dev, "Error registering device\n"); |
||
227 | // goto end; |
||
228 | // } |
||
229 | |||
230 | |||
231 | |||
232 | |||
233 | end: |
||
234 | mutex_lock(&acpi_device_lock); |
||
235 | if (device->parent) |
||
236 | list_del(&device->node); |
||
237 | mutex_unlock(&acpi_device_lock); |
||
238 | return result; |
||
239 | } |
||
240 | |||
241 | |||
242 | |||
243 | |||
244 | ACPI_STATUS status; |
||
245 | struct acpi_device *device; |
||
246 | int ret; |
||
247 | |||
248 | /* |
||
249 | |||
250 | * have handles, but we fabricate acpi_devices for them, so we have |
||
251 | * to deal with them specially. |
||
252 | */ |
||
253 | if (handle == NULL) |
||
254 | return acpi_root; |
||
255 | |||
256 | do { |
||
257 | |||
258 | if (status == AE_NULL_ENTRY) |
||
259 | return NULL; |
||
260 | if (ACPI_FAILURE(status)) |
||
261 | return acpi_root; |
||
262 | |||
263 | ret = acpi_bus_get_device(handle, &device); |
||
264 | |||
265 | return device; |
||
266 | } while (1); |
||
267 | } |
||
268 | |||
269 | |||
270 | |||
271 | |||
272 | ACPI_STATUS status = AE_OK; |
||
273 | ACPI_HANDLE temp = NULL; |
||
274 | |||
275 | /* Presence of _STA indicates 'dynamic_status' */ |
||
276 | |||
277 | if (ACPI_SUCCESS(status)) |
||
278 | device->flags.dynamic_status = 1; |
||
279 | |||
280 | /* Presence of _RMV indicates 'removable' */ |
||
281 | |||
282 | if (ACPI_SUCCESS(status)) |
||
283 | device->flags.removable = 1; |
||
284 | |||
285 | /* Presence of _EJD|_EJ0 indicates 'ejectable' */ |
||
286 | |||
287 | if (ACPI_SUCCESS(status)) |
||
288 | device->flags.ejectable = 1; |
||
289 | else { |
||
290 | status = AcpiGetHandle(device->handle, "_EJ0", &temp); |
||
291 | if (ACPI_SUCCESS(status)) |
||
292 | device->flags.ejectable = 1; |
||
293 | } |
||
294 | |||
295 | /* Presence of _LCK indicates 'lockable' */ |
||
296 | |||
297 | if (ACPI_SUCCESS(status)) |
||
298 | device->flags.lockable = 1; |
||
299 | |||
300 | /* Presence of _PS0|_PR0 indicates 'power manageable' */ |
||
301 | |||
302 | if (ACPI_FAILURE(status)) |
||
303 | status = AcpiGetHandle(device->handle, "_PR0", &temp); |
||
304 | if (ACPI_SUCCESS(status)) |
||
305 | device->flags.power_manageable = 1; |
||
306 | |||
307 | /* Presence of _PRW indicates wake capable */ |
||
308 | |||
309 | if (ACPI_SUCCESS(status)) |
||
310 | device->flags.wake_capable = 1; |
||
311 | |||
312 | /* TBD: Performance management */ |
||
313 | |||
314 | return 0; |
||
315 | |||
316 | |||
317 | static void acpi_device_get_busid(struct acpi_device *device) |
||
318 | |||
319 | char bus_id[5] = { '?', 0 }; |
||
320 | struct acpi_buffer buffer = { sizeof(bus_id), bus_id }; |
||
321 | int i = 0; |
||
322 | |||
323 | /* |
||
324 | |||
325 | * ------ |
||
326 | * The device's Bus ID is simply the object name. |
||
327 | * TBD: Shouldn't this value be unique (within the ACPI namespace)? |
||
328 | */ |
||
329 | if (ACPI_IS_ROOT_DEVICE(device)) { |
||
330 | strcpy(device->pnp.bus_id, "ACPI"); |
||
331 | return; |
||
332 | } |
||
333 | |||
334 | switch (device->device_type) |
||
335 | |||
336 | case ACPI_BUS_TYPE_POWER_BUTTON: |
||
337 | strcpy(device->pnp.bus_id, "PWRF"); |
||
338 | break; |
||
339 | case ACPI_BUS_TYPE_SLEEP_BUTTON: |
||
340 | strcpy(device->pnp.bus_id, "SLPF"); |
||
341 | break; |
||
342 | default: |
||
343 | AcpiGetName(device->handle, ACPI_SINGLE_NAME, &buffer); |
||
344 | /* Clean up trailing underscores (if any) */ |
||
345 | for (i = 3; i > 1; i--) { |
||
346 | if (bus_id[i] == '_') |
||
347 | bus_id[i] = '\0'; |
||
348 | else |
||
349 | break; |
||
350 | } |
||
351 | strcpy(device->pnp.bus_id, bus_id); |
||
352 | break; |
||
353 | } |
||
354 | } |
||
355 | |||
356 | |||
357 | |||
358 | |||
359 | #define ACPI_VIDEO_ROM_AVAILABLE 0x0004 |
||
360 | #define ACPI_VIDEO_BACKLIGHT 0x0008 |
||
361 | #define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010 |
||
362 | #define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020 |
||
363 | #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040 |
||
364 | #define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080 |
||
365 | #define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100 |
||
366 | #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 |
||
367 | #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 |
||
368 | #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 |
||
369 | |||
370 | |||
371 | |||
372 | |||
373 | ACPI_HANDLE h_dummy; |
||
374 | long video_caps = 0; |
||
375 | |||
376 | if (!device) |
||
377 | |||
378 | |||
379 | /* Is this device able to support video switching ? */ |
||
380 | |||
381 | ACPI_SUCCESS(AcpiGetHandle(device->handle, "_DOS", &h_dummy))) |
||
382 | video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING; |
||
383 | |||
384 | /* Is this device able to retrieve a video ROM ? */ |
||
385 | |||
386 | video_caps |= ACPI_VIDEO_ROM_AVAILABLE; |
||
387 | |||
388 | /* Is this device able to configure which video head to be POSTed ? */ |
||
389 | |||
390 | ACPI_SUCCESS(AcpiGetHandle(device->handle, "_GPD", &h_dummy)) && |
||
391 | ACPI_SUCCESS(AcpiGetHandle(device->handle, "_SPD", &h_dummy))) |
||
392 | video_caps |= ACPI_VIDEO_DEVICE_POSTING; |
||
393 | |||
394 | return video_caps; |
||
395 | |||
396 | |||
397 | /* |
||
398 | |||
399 | * |
||
400 | * If an acpi object is ejectable and has one of the ACPI ATA methods defined, |
||
401 | * then we can safely call it an ejectable drive bay |
||
402 | */ |
||
403 | static int acpi_bay_match(struct acpi_device *device){ |
||
404 | ACPI_STATUS status; |
||
405 | ACPI_HANDLE handle; |
||
406 | ACPI_HANDLE tmp; |
||
407 | ACPI_HANDLE phandle; |
||
408 | |||
409 | handle = device->handle; |
||
410 | |||
411 | status = AcpiGetHandle(handle, "_EJ0", &tmp); |
||
412 | |||
413 | return -ENODEV; |
||
414 | |||
415 | if ((ACPI_SUCCESS(AcpiGetHandle(handle, "_GTF", &tmp))) || |
||
416 | |||
417 | (ACPI_SUCCESS(AcpiGetHandle(handle, "_STM", &tmp))) || |
||
418 | (ACPI_SUCCESS(AcpiGetHandle(handle, "_SDD", &tmp)))) |
||
419 | return 0; |
||
420 | |||
421 | if (AcpiGetParent(handle, &phandle)) |
||
422 | |||
423 | |||
424 | if ((ACPI_SUCCESS(AcpiGetHandle(phandle, "_GTF", &tmp))) || |
||
425 | |||
426 | (ACPI_SUCCESS(AcpiGetHandle(phandle, "_STM", &tmp))) || |
||
427 | (ACPI_SUCCESS(AcpiGetHandle(phandle, "_SDD", &tmp)))) |
||
428 | return 0; |
||
429 | |||
430 | return -ENODEV; |
||
431 | |||
432 | |||
433 | /* |
||
434 | |||
435 | */ |
||
436 | static int acpi_dock_match(struct acpi_device *device) |
||
437 | { |
||
438 | ACPI_HANDLE tmp; |
||
439 | return AcpiGetHandle(device->handle, "_DCK", &tmp); |
||
440 | } |
||
441 | |||
442 | char *acpi_device_hid(struct acpi_device *device) |
||
443 | |||
444 | struct acpi_hardware_id *hid; |
||
445 | |||
446 | hid = list_first_entry(&device->pnp.ids, struct acpi_hardware_id, list); |
||
447 | |||
448 | } |
||
449 | |||
450 | static void acpi_add_id(struct acpi_device *device, const char *dev_id) |
||
451 | |||
452 | struct acpi_hardware_id *id; |
||
453 | |||
454 | id = kmalloc(sizeof(*id), GFP_KERNEL); |
||
455 | |||
456 | return; |
||
457 | |||
458 | INIT_LIST_HEAD(&id->list); |
||
459 | |||
460 | id->id = kmalloc(strlen(dev_id) + 1, GFP_KERNEL); |
||
461 | |||
462 | kfree(id); |
||
463 | return; |
||
464 | } |
||
465 | |||
466 | strcpy(id->id, dev_id); |
||
467 | |||
468 | } |
||
469 | |||
470 | |||
471 | |||
472 | |||
473 | |||
474 | ACPI_STATUS status; |
||
475 | ACPI_DEVICE_INFO *info; |
||
476 | ACPI_DEVICE_ID_LIST *cid_list; |
||
477 | int i; |
||
478 | |||
479 | switch (device->device_type) |
||
480 | |||
481 | case ACPI_BUS_TYPE_DEVICE: |
||
482 | if (ACPI_IS_ROOT_DEVICE(device)) { |
||
483 | acpi_add_id(device, ACPI_SYSTEM_HID); |
||
484 | break; |
||
485 | } |
||
486 | |||
487 | status = AcpiGetObjectInfo(device->handle, &info); |
||
488 | |||
489 | printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__); |
||
490 | return; |
||
491 | } |
||
492 | |||
493 | if (info->Valid & ACPI_VALID_HID) |
||
494 | |||
495 | if (info->Valid & ACPI_VALID_CID) |
||
496 | { |
||
497 | cid_list = &info->CompatibleIdList; |
||
498 | for (i = 0; i < cid_list->Count; i++) |
||
499 | acpi_add_id(device, cid_list->Ids[i].String); |
||
500 | } |
||
501 | if (info->Valid & ACPI_VALID_ADR) { |
||
502 | device->pnp.bus_address = info->Address; |
||
503 | device->flags.bus_address = 1; |
||
504 | } |
||
505 | |||
506 | kfree(info); |
||
507 | |||
508 | /* |
||
509 | |||
510 | * synthetic HIDs to make sure drivers can find them. |
||
511 | */ |
||
512 | if (acpi_is_video_device(device)) |
||
513 | acpi_add_id(device, ACPI_VIDEO_HID); |
||
514 | else if (ACPI_SUCCESS(acpi_bay_match(device))) |
||
515 | acpi_add_id(device, ACPI_BAY_HID); |
||
516 | else if (ACPI_SUCCESS(acpi_dock_match(device))) |
||
517 | acpi_add_id(device, ACPI_DOCK_HID); |
||
518 | else if (!acpi_device_hid(device) && |
||
519 | ACPI_IS_ROOT_DEVICE(device->parent)) { |
||
520 | acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ |
||
521 | strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); |
||
522 | strcpy(device->pnp.device_class, ACPI_BUS_CLASS); |
||
523 | } |
||
524 | |||
525 | break; |
||
526 | |||
527 | acpi_add_id(device, ACPI_POWER_HID); |
||
528 | break; |
||
529 | case ACPI_BUS_TYPE_PROCESSOR: |
||
530 | acpi_add_id(device, ACPI_PROCESSOR_OBJECT_HID); |
||
531 | break; |
||
532 | case ACPI_BUS_TYPE_THERMAL: |
||
533 | acpi_add_id(device, ACPI_THERMAL_HID); |
||
534 | break; |
||
535 | case ACPI_BUS_TYPE_POWER_BUTTON: |
||
536 | acpi_add_id(device, ACPI_BUTTON_HID_POWERF); |
||
537 | break; |
||
538 | case ACPI_BUS_TYPE_SLEEP_BUTTON: |
||
539 | acpi_add_id(device, ACPI_BUTTON_HID_SLEEPF); |
||
540 | break; |
||
541 | } |
||
542 | |||
543 | /* |
||
544 | |||
545 | * e.g., PCI bridges and slots. Drivers can't bind to these objects, |
||
546 | * but we do use them indirectly by traversing the acpi_device tree. |
||
547 | * This generic ID isn't useful for driver binding, but it provides |
||
548 | * the useful property that "every acpi_device has an ID." |
||
549 | */ |
||
550 | if (list_empty(&device->pnp.ids)) |
||
551 | acpi_add_id(device, "device"); |
||
552 | } |
||
553 | |||
554 | static int acpi_device_set_context(struct acpi_device *device) |
||
555 | |||
556 | ACPI_STATUS status; |
||
557 | |||
558 | /* |
||
559 | |||
560 | * ------- |
||
561 | * Attach this 'struct acpi_device' to the ACPI object. This makes |
||
562 | * resolutions from handle->device very efficient. Fixed hardware |
||
563 | * devices have no handles, so we skip them. |
||
564 | */ |
||
565 | if (!device->handle) |
||
566 | return 0; |
||
567 | |||
568 | status = AcpiAttachData(device->handle, |
||
569 | |||
570 | if (ACPI_SUCCESS(status)) |
||
571 | return 0; |
||
572 | |||
573 | printk(KERN_ERR PREFIX "Error attaching device data\n"); |
||
574 | |||
575 | } |
||
576 | |||
577 | |||
578 | |||
579 | |||
580 | unsigned long long sta, |
||
581 | struct acpi_bus_ops *ops) |
||
582 | { |
||
583 | int result; |
||
584 | struct acpi_device *device; |
||
585 | ACPI_BUFFER buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
||
586 | ACPI_DEVICE_INFO *info = NULL; |
||
587 | ACPI_DEVICE_ID_LIST *cid_list; |
||
1867 | serge | 588 | int i; |
589 | |||
590 | |||
1627 | serge | 591 | |
1867 | serge | 592 | |
1627 | serge | 593 | printk(KERN_ERR PREFIX "Memory allocation error\n"); |
594 | return -ENOMEM; |
||
595 | } |
||
596 | |||
597 | INIT_LIST_HEAD(&device->pnp.ids); |
||
598 | |||
599 | device->handle = handle; |
||
600 | device->parent = acpi_bus_get_parent(handle); |
||
601 | device->bus_ops = *ops; /* workround for not call .start */ |
||
602 | STRUCT_TO_INT(device->status) = sta; |
||
603 | |||
604 | acpi_device_get_busid(device); |
||
605 | |||
606 | /* |
||
607 | |||
608 | * ----- |
||
609 | * Note that we only look for object handles -- cannot evaluate objects |
||
610 | * until we know the device is present and properly initialized. |
||
611 | */ |
||
612 | result = acpi_bus_get_flags(device); |
||
613 | if (result) |
||
614 | goto end; |
||
615 | |||
616 | /* |
||
617 | |||
618 | * ----------------- |
||
619 | * TBD: Synch with Core's enumeration/initialization process. |
||
620 | */ |
||
621 | acpi_device_set_id(device); |
||
622 | |||
623 | |||
624 | |||
625 | |||
626 | |||
627 | result = acpi_device_register(device); |
||
628 | |||
629 | /* |
||
630 | |||
631 | */ |
||
632 | if (device->flags.bus_address) { |
||
633 | if (device->parent && device->parent->ops.bind) |
||
1628 | serge | 634 | device->parent->ops.bind(device); |
635 | } |
||
636 | |||
637 | end: |
||
1627 | serge | 638 | |
639 | AcpiGetName(handle, ACPI_FULL_PATHNAME, &buffer); |
||
1867 | serge | 640 | |
641 | kfree(buffer.Pointer); |
||
642 | |||
643 | AcpiGetObjectInfo(handle, &info); |
||
644 | |||
645 | dbgprintf (" HID: %s", info->HardwareId.String); |
||
646 | |||
647 | if (info->Valid & ACPI_VALID_CID) |
||
648 | |||
649 | cid_list = &info->CompatibleIdList; |
||
650 | for (i = 0; i < cid_list->Count; i++) |
||
651 | dbgprintf(" CID: %s\n", cid_list->Ids[i].String); |
||
652 | } |
||
653 | dbgprintf("\n"); |
||
654 | |||
655 | kfree(info); |
||
656 | |||
657 | if (!result) { |
||
658 | |||
1627 | serge | 659 | }; |
660 | return result; |
||
661 | } |
||
662 | |||
663 | #define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ |
||
664 | |||
665 | |||
666 | static int acpi_bus_type_and_status(ACPI_HANDLE handle, int *type, |
||
667 | |||
668 | { |
||
669 | ACPI_STATUS status; |
||
670 | ACPI_OBJECT_TYPE acpi_type; |
||
671 | |||
672 | status = AcpiGetType(handle, &acpi_type); |
||
673 | |||
674 | return -ENODEV; |
||
675 | |||
676 | switch (acpi_type) |
||
677 | |||
678 | case ACPI_TYPE_ANY: /* for ACPI_ROOT_OBJECT */ |
||
679 | case ACPI_TYPE_DEVICE: |
||
680 | *type = ACPI_BUS_TYPE_DEVICE; |
||
681 | status = acpi_bus_get_status_handle(handle, sta); |
||
682 | if (ACPI_FAILURE(status)) |
||
683 | return -ENODEV; |
||
684 | break; |
||
685 | case ACPI_TYPE_PROCESSOR: |
||
686 | *type = ACPI_BUS_TYPE_PROCESSOR; |
||
687 | status = acpi_bus_get_status_handle(handle, sta); |
||
688 | if (ACPI_FAILURE(status)) |
||
689 | return -ENODEV; |
||
690 | break; |
||
691 | case ACPI_TYPE_THERMAL: |
||
692 | *type = ACPI_BUS_TYPE_THERMAL; |
||
693 | *sta = ACPI_STA_DEFAULT; |
||
694 | break; |
||
695 | case ACPI_TYPE_POWER: |
||
696 | *type = ACPI_BUS_TYPE_POWER; |
||
697 | *sta = ACPI_STA_DEFAULT; |
||
698 | break; |
||
699 | default: |
||
700 | return -ENODEV; |
||
701 | } |
||
702 | |||
703 | return 0; |
||
704 | |||
705 | |||
706 | |||
707 | |||
708 | |||
709 | { |
||
710 | struct acpi_bus_ops *ops = context; |
||
711 | int type; |
||
712 | unsigned long long sta; |
||
713 | struct acpi_device *device; |
||
714 | ACPI_STATUS status; |
||
715 | int result; |
||
716 | |||
717 | result = acpi_bus_type_and_status(handle, &type, &sta); |
||
718 | |||
719 | return AE_OK; |
||
720 | |||
721 | if (!(sta & ACPI_STA_DEVICE_PRESENT) && |
||
722 | |||
723 | return AE_CTRL_DEPTH; |
||
724 | |||
725 | /* |
||
726 | |||
727 | * so, we needn't add it again, but we may still have to start it. |
||
728 | */ |
||
729 | device = NULL; |
||
730 | acpi_bus_get_device(handle, &device); |
||
731 | if (ops->acpi_op_add && !device) |
||
732 | acpi_add_single_object(&device, handle, type, sta, ops); |
||
733 | |||
734 | if (!device) |
||
735 | |||
736 | |||
737 | /* |
||
738 | |||
739 | status = acpi_start_single_object(device); |
||
740 | if (ACPI_FAILURE(status)) |
||
741 | return AE_CTRL_DEPTH; |
||
742 | } |
||
743 | */ |
||
744 | |||
745 | if (!*return_value) |
||
746 | |||
747 | return AE_OK; |
||
748 | } |
||
749 | |||
750 | |||
751 | |||
752 | |||
753 | { |
||
754 | ACPI_STATUS status; |
||
755 | void *device = NULL; |
||
756 | |||
757 | status = acpi_bus_check_add(handle, 0, ops, &device); |
||
758 | |||
759 | AcpiWalkNamespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, |
||
760 | acpi_bus_check_add, NULL, ops, &device); |
||
761 | |||
762 | if (child) |
||
763 | |||
764 | |||
765 | if (device) |
||
766 | |||
767 | else |
||
768 | return -ENODEV; |
||
769 | } |
||
770 | |||
771 | |||
772 | |||
773 | |||
774 | int err; |
||
775 | struct acpi_bus_ops ops; |
||
776 | |||
777 | memset(&ops, 0, sizeof(ops)); |
||
778 | |||
779 | ops.acpi_op_start = 1; |
||
780 | |||
781 | err = acpi_bus_scan(ACPI_ROOT_OBJECT, &ops, &acpi_root); |
||
782 | |||
783 | return err; |
||
784 | |||
785 |