- Fix the resource parsing loops to correct a memory corruption issue
[reactos.git] / reactos / drivers / bus / acpi / buspdo.c
1 #include <ntddk.h>
2
3 #include <acpi.h>
4 #include <acpisys.h>
5 #include <wdmguid.h>
6 #include <stdio.h>
7
8 #include <acpi_bus.h>
9 #include <acpi_drivers.h>
10
11 //#define NDEBUG
12 #include <debug.h>
13
14 #ifdef ALLOC_PRAGMA
15 #pragma alloc_text (PAGE, Bus_PDO_PnP)
16 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceCaps)
17 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceId)
18 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceText)
19 #pragma alloc_text (PAGE, Bus_PDO_QueryResources)
20 #pragma alloc_text (PAGE, Bus_PDO_QueryResourceRequirements)
21 #pragma alloc_text (PAGE, Bus_PDO_QueryDeviceRelations)
22 #pragma alloc_text (PAGE, Bus_PDO_QueryBusInformation)
23 #pragma alloc_text (PAGE, Bus_GetDeviceCapabilities)
24 #endif
25
26 NTSTATUS
27 Bus_PDO_PnP (
28 PDEVICE_OBJECT DeviceObject,
29 PIRP Irp,
30 PIO_STACK_LOCATION IrpStack,
31 PPDO_DEVICE_DATA DeviceData
32 )
33 {
34 NTSTATUS status;
35 POWER_STATE state;
36
37 PAGED_CODE ();
38
39 //
40 // NB: Because we are a bus enumerator, we have no one to whom we could
41 // defer these irps. Therefore we do not pass them down but merely
42 // return them.
43 //
44
45 switch (IrpStack->MinorFunction) {
46
47 case IRP_MN_START_DEVICE:
48
49 //
50 // Here we do what ever initialization and ``turning on'' that is
51 // required to allow others to access this device.
52 // Power up the device.
53 //
54 if (DeviceData->AcpiHandle && acpi_bus_power_manageable(DeviceData->AcpiHandle) &&
55 !ACPI_SUCCESS(acpi_bus_set_power(DeviceData->AcpiHandle, ACPI_STATE_D0)))
56 {
57 DPRINT1("Device %x failed to start!\n", DeviceData->AcpiHandle);
58 status = STATUS_UNSUCCESSFUL;
59 break;
60 }
61
62 state.DeviceState = PowerDeviceD0;
63 PoSetPowerState(DeviceData->Common.Self, DevicePowerState, state);
64 DeviceData->Common.DevicePowerState = PowerDeviceD0;
65 SET_NEW_PNP_STATE(DeviceData->Common, Started);
66 status = STATUS_SUCCESS;
67 break;
68
69 case IRP_MN_STOP_DEVICE:
70
71 //
72 // Here we shut down the device and give up and unmap any resources
73 // we acquired for the device.
74 //
75 if (DeviceData->AcpiHandle && acpi_bus_power_manageable(DeviceData->AcpiHandle) &&
76 !ACPI_SUCCESS(acpi_bus_set_power(DeviceData->AcpiHandle, ACPI_STATE_D3)))
77 {
78 DPRINT1("Device %x failed to stop!\n", DeviceData->AcpiHandle);
79 status = STATUS_UNSUCCESSFUL;
80 break;
81 }
82
83 state.DeviceState = PowerDeviceD3;
84 PoSetPowerState(DeviceData->Common.Self, DevicePowerState, state);
85 DeviceData->Common.DevicePowerState = PowerDeviceD3;
86 SET_NEW_PNP_STATE(DeviceData->Common, Stopped);
87 status = STATUS_SUCCESS;
88 break;
89
90
91 case IRP_MN_QUERY_STOP_DEVICE:
92
93 //
94 // No reason here why we can't stop the device.
95 // If there were a reason we should speak now, because answering success
96 // here may result in a stop device irp.
97 //
98
99 SET_NEW_PNP_STATE(DeviceData->Common, StopPending);
100 status = STATUS_SUCCESS;
101 break;
102
103 case IRP_MN_CANCEL_STOP_DEVICE:
104
105 //
106 // The stop was canceled. Whatever state we set, or resources we put
107 // on hold in anticipation of the forthcoming STOP device IRP should be
108 // put back to normal. Someone, in the long list of concerned parties,
109 // has failed the stop device query.
110 //
111
112 //
113 // First check to see whether you have received cancel-stop
114 // without first receiving a query-stop. This could happen if someone
115 // above us fails a query-stop and passes down the subsequent
116 // cancel-stop.
117 //
118
119 if (StopPending == DeviceData->Common.DevicePnPState)
120 {
121 //
122 // We did receive a query-stop, so restore.
123 //
124 RESTORE_PREVIOUS_PNP_STATE(DeviceData->Common);
125 }
126 status = STATUS_SUCCESS;// We must not fail this IRP.
127 break;
128 case IRP_MN_QUERY_CAPABILITIES:
129
130 //
131 // Return the capabilities of a device, such as whether the device
132 // can be locked or ejected..etc
133 //
134
135 status = Bus_PDO_QueryDeviceCaps(DeviceData, Irp);
136
137 break;
138
139 case IRP_MN_QUERY_ID:
140
141 // Query the IDs of the device
142 status = Bus_PDO_QueryDeviceId(DeviceData, Irp);
143
144 break;
145
146 case IRP_MN_QUERY_DEVICE_RELATIONS:
147
148 DPRINT("\tQueryDeviceRelation Type: %s\n",DbgDeviceRelationString(\
149 IrpStack->Parameters.QueryDeviceRelations.Type));
150
151 status = Bus_PDO_QueryDeviceRelations(DeviceData, Irp);
152
153 break;
154
155 case IRP_MN_QUERY_DEVICE_TEXT:
156
157 status = Bus_PDO_QueryDeviceText(DeviceData, Irp);
158
159 break;
160
161 case IRP_MN_QUERY_RESOURCES:
162
163 status = Bus_PDO_QueryResources(DeviceData, Irp);
164
165 break;
166
167 case IRP_MN_QUERY_RESOURCE_REQUIREMENTS:
168
169 status = Bus_PDO_QueryResourceRequirements(DeviceData, Irp);
170
171 break;
172
173 case IRP_MN_QUERY_BUS_INFORMATION:
174
175 status = Bus_PDO_QueryBusInformation(DeviceData, Irp);
176
177 break;
178
179
180 case IRP_MN_FILTER_RESOURCE_REQUIREMENTS:
181
182 //
183 // OPTIONAL for bus drivers.
184 // The PnP Manager sends this IRP to a device
185 // stack so filter and function drivers can adjust the
186 // resources required by the device, if appropriate.
187 //
188
189 //break;
190
191 //case IRP_MN_QUERY_PNP_DEVICE_STATE:
192
193 //
194 // OPTIONAL for bus drivers.
195 // The PnP Manager sends this IRP after the drivers for
196 // a device return success from the IRP_MN_START_DEVICE
197 // request. The PnP Manager also sends this IRP when a
198 // driver for the device calls IoInvalidateDeviceState.
199 //
200
201 // break;
202
203 //case IRP_MN_READ_CONFIG:
204 //case IRP_MN_WRITE_CONFIG:
205
206 //
207 // Bus drivers for buses with configuration space must handle
208 // this request for their child devices. Our devices don't
209 // have a config space.
210 //
211
212 // break;
213
214 //case IRP_MN_SET_LOCK:
215
216 // break;
217
218 default:
219
220 //
221 // For PnP requests to the PDO that we do not understand we should
222 // return the IRP WITHOUT setting the status or information fields.
223 // These fields may have already been set by a filter (eg acpi).
224 status = Irp->IoStatus.Status;
225
226 break;
227 }
228
229 Irp->IoStatus.Status = status;
230 IoCompleteRequest (Irp, IO_NO_INCREMENT);
231
232 return status;
233 }
234
235 NTSTATUS
236 Bus_PDO_QueryDeviceCaps(
237 PPDO_DEVICE_DATA DeviceData,
238 PIRP Irp )
239 {
240
241 PIO_STACK_LOCATION stack;
242 PDEVICE_CAPABILITIES deviceCapabilities;
243 struct acpi_device *device = NULL;
244 ULONG i;
245
246 PAGED_CODE ();
247
248 if (DeviceData->AcpiHandle)
249 acpi_bus_get_device(DeviceData->AcpiHandle, &device);
250
251 stack = IoGetCurrentIrpStackLocation (Irp);
252
253 //
254 // Get the packet.
255 //
256 deviceCapabilities=stack->Parameters.DeviceCapabilities.Capabilities;
257
258 //
259 // Set the capabilities.
260 //
261
262 if (deviceCapabilities->Version != 1 ||
263 deviceCapabilities->Size < sizeof(DEVICE_CAPABILITIES))
264 {
265 return STATUS_UNSUCCESSFUL;
266 }
267
268 deviceCapabilities->D1Latency = 0;
269 deviceCapabilities->D2Latency = 0;
270 deviceCapabilities->D3Latency = 0;
271
272 deviceCapabilities->DeviceState[PowerSystemWorking] = PowerDeviceD0;
273 deviceCapabilities->DeviceState[PowerSystemSleeping1] = PowerDeviceD3;
274 deviceCapabilities->DeviceState[PowerSystemSleeping2] = PowerDeviceD3;
275 deviceCapabilities->DeviceState[PowerSystemSleeping3] = PowerDeviceD3;
276
277 for (i = 0; i < ACPI_D_STATE_COUNT && device; i++)
278 {
279 if (!device->power.states[i].flags.valid)
280 continue;
281
282 switch (i)
283 {
284 case ACPI_STATE_D0:
285 deviceCapabilities->DeviceState[PowerSystemWorking] = PowerDeviceD0;
286 break;
287
288 case ACPI_STATE_D1:
289 deviceCapabilities->DeviceState[PowerSystemSleeping1] = PowerDeviceD1;
290 deviceCapabilities->D1Latency = device->power.states[i].latency;
291 break;
292
293 case ACPI_STATE_D2:
294 deviceCapabilities->DeviceState[PowerSystemSleeping2] = PowerDeviceD2;
295 deviceCapabilities->D2Latency = device->power.states[i].latency;
296 break;
297
298 case ACPI_STATE_D3:
299 deviceCapabilities->DeviceState[PowerSystemSleeping3] = PowerDeviceD3;
300 deviceCapabilities->D3Latency = device->power.states[i].latency;
301 break;
302 }
303 }
304
305 // We can wake the system from D1
306 deviceCapabilities->DeviceWake = PowerDeviceD1;
307
308
309 deviceCapabilities->DeviceD1 =
310 (deviceCapabilities->DeviceState[PowerSystemSleeping1] == PowerDeviceD1) ? TRUE : FALSE;
311 deviceCapabilities->DeviceD2 =
312 (deviceCapabilities->DeviceState[PowerSystemSleeping2] == PowerDeviceD2) ? TRUE : FALSE;
313
314 deviceCapabilities->WakeFromD0 = FALSE;
315 deviceCapabilities->WakeFromD1 = TRUE; //Yes we can
316 deviceCapabilities->WakeFromD2 = FALSE;
317 deviceCapabilities->WakeFromD3 = FALSE;
318
319 if (device)
320 {
321 deviceCapabilities->EjectSupported = device->flags.ejectable;
322 deviceCapabilities->HardwareDisabled = !device->status.enabled;
323 deviceCapabilities->Removable = device->flags.removable;
324 deviceCapabilities->SurpriseRemovalOK = device->flags.suprise_removal_ok;
325 deviceCapabilities->UniqueID = device->flags.unique_id;
326 deviceCapabilities->NoDisplayInUI = !device->status.show_in_ui;
327 deviceCapabilities->Address = device->pnp.bus_address;
328 }
329 else
330 {
331 deviceCapabilities->EjectSupported = FALSE;
332 deviceCapabilities->HardwareDisabled = FALSE;
333 deviceCapabilities->Removable = FALSE;
334 deviceCapabilities->SurpriseRemovalOK = FALSE;
335 deviceCapabilities->UniqueID = FALSE;
336 deviceCapabilities->NoDisplayInUI = FALSE;
337 deviceCapabilities->Address = 0;
338 }
339
340 deviceCapabilities->SilentInstall = FALSE;
341 deviceCapabilities->UINumber = (ULONG)-1;
342
343 return STATUS_SUCCESS;
344
345 }
346
347 NTSTATUS
348 Bus_PDO_QueryDeviceId(
349 PPDO_DEVICE_DATA DeviceData,
350 PIRP Irp )
351 {
352 PIO_STACK_LOCATION stack;
353 PWCHAR buffer;
354 WCHAR temp[256];
355 ULONG length;
356 NTSTATUS status = STATUS_SUCCESS;
357 struct acpi_device *Device;
358
359 PAGED_CODE ();
360
361 stack = IoGetCurrentIrpStackLocation (Irp);
362
363 switch (stack->Parameters.QueryId.IdType) {
364
365 case BusQueryDeviceID:
366 if (DeviceData->AcpiHandle)
367 {
368 acpi_bus_get_device(DeviceData->AcpiHandle, &Device);
369
370 length = swprintf(temp,
371 L"ACPI\\%hs",
372 Device->pnp.hardware_id);
373 }
374 else
375 {
376 /* We know it's a fixed feature button because
377 * these are direct children of the ACPI root device
378 * and therefore have no handle
379 */
380 length = swprintf(temp,
381 L"ACPI\\FixedButton");
382 }
383
384 temp[++length] = UNICODE_NULL;
385
386 buffer = ExAllocatePoolWithTag (PagedPool, length * sizeof(WCHAR), 'IPCA');
387
388 if (!buffer) {
389 status = STATUS_INSUFFICIENT_RESOURCES;
390 break;
391 }
392
393 RtlCopyMemory (buffer, temp, length * sizeof(WCHAR));
394 Irp->IoStatus.Information = (ULONG_PTR) buffer;
395 DPRINT("BusQueryDeviceID: %ls\n",buffer);
396 break;
397
398 case BusQueryInstanceID:
399 /* See comment in BusQueryDeviceID case */
400 if(DeviceData->AcpiHandle)
401 {
402 acpi_bus_get_device(DeviceData->AcpiHandle, &Device);
403
404 if (Device->flags.unique_id)
405 length = swprintf(temp,
406 L"%hs",
407 Device->pnp.unique_id);
408 else
409 /* FIXME: Generate unique id! */
410 length = swprintf(temp, L"%ls", L"0000");
411 }
412 else
413 /* FIXME: Generate unique id! */
414 length = swprintf(temp, L"%ls", L"0000");
415
416 temp[++length] = UNICODE_NULL;
417
418 buffer = ExAllocatePoolWithTag (PagedPool, length * sizeof (WCHAR), 'IPCA');
419 if (!buffer) {
420 status = STATUS_INSUFFICIENT_RESOURCES;
421 break;
422 }
423
424 RtlCopyMemory (buffer, temp, length * sizeof (WCHAR));
425 DPRINT("BusQueryInstanceID: %ls\n",buffer);
426 Irp->IoStatus.Information = (ULONG_PTR) buffer;
427 break;
428
429 case BusQueryHardwareIDs:
430 length = 0;
431
432 /* See comment in BusQueryDeviceID case */
433 if (DeviceData->AcpiHandle)
434 {
435 acpi_bus_get_device(DeviceData->AcpiHandle, &Device);
436
437 length += swprintf(&temp[length],
438 L"ACPI\\%hs",
439 Device->pnp.hardware_id);
440 length++;
441
442 length += swprintf(&temp[length],
443 L"*%hs",
444 Device->pnp.hardware_id);
445 length++;
446 }
447 else
448 {
449 length += swprintf(&temp[length],
450 L"ACPI\\FixedButton");
451 length++;
452
453 length += swprintf(&temp[length],
454 L"*FixedButton");
455 length++;
456 }
457
458 temp[length] = UNICODE_NULL;
459
460 length++;
461
462 temp[length] = UNICODE_NULL;
463
464 buffer = ExAllocatePoolWithTag (PagedPool, length * sizeof(WCHAR), 'IPCA');
465
466 if (!buffer) {
467 status = STATUS_INSUFFICIENT_RESOURCES;
468 break;
469 }
470
471 RtlCopyMemory (buffer, temp, length * sizeof(WCHAR));
472 Irp->IoStatus.Information = (ULONG_PTR) buffer;
473 DPRINT("BusQueryHardwareIDs: %ls\n",buffer);
474 break;
475
476 default:
477 status = Irp->IoStatus.Status;
478 }
479 return status;
480 }
481
482 NTSTATUS
483 Bus_PDO_QueryDeviceText(
484 PPDO_DEVICE_DATA DeviceData,
485 PIRP Irp )
486 {
487 PWCHAR Buffer;
488 PIO_STACK_LOCATION stack;
489 NTSTATUS status;
490 PAGED_CODE ();
491
492 stack = IoGetCurrentIrpStackLocation (Irp);
493
494 switch (stack->Parameters.QueryDeviceText.DeviceTextType) {
495
496 case DeviceTextDescription:
497
498 if (!Irp->IoStatus.Information) {
499 if (wcsstr (DeviceData->HardwareIDs, L"PNP000") != 0)
500 Buffer = L"Programmable interrupt controller";
501 else if (wcsstr(DeviceData->HardwareIDs, L"PNP010") != 0)
502 Buffer = L"System timer";
503 else if (wcsstr(DeviceData->HardwareIDs, L"PNP020") != 0)
504 Buffer = L"DMA controller";
505 else if (wcsstr(DeviceData->HardwareIDs, L"PNP03") != 0)
506 Buffer = L"Keyboard";
507 else if (wcsstr(DeviceData->HardwareIDs, L"PNP040") != 0)
508 Buffer = L"Parallel port";
509 else if (wcsstr(DeviceData->HardwareIDs, L"PNP05") != 0)
510 Buffer = L"Serial port";
511 else if (wcsstr(DeviceData->HardwareIDs, L"PNP06") != 0)
512 Buffer = L"Disk controller";
513 else if (wcsstr(DeviceData->HardwareIDs, L"PNP07") != 0)
514 Buffer = L"Disk controller";
515 else if (wcsstr(DeviceData->HardwareIDs, L"PNP09") != 0)
516 Buffer = L"Display adapter";
517 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0A0") != 0)
518 Buffer = L"Bus controller";
519 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0E0") != 0)
520 Buffer = L"PCMCIA controller";
521 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0F") != 0)
522 Buffer = L"Mouse device";
523 else if (wcsstr(DeviceData->HardwareIDs, L"PNP8") != 0)
524 Buffer = L"Network adapter";
525 else if (wcsstr(DeviceData->HardwareIDs, L"PNPA0") != 0)
526 Buffer = L"SCSI controller";
527 else if (wcsstr(DeviceData->HardwareIDs, L"PNPB0") != 0)
528 Buffer = L"Multimedia device";
529 else if (wcsstr(DeviceData->HardwareIDs, L"PNPC00") != 0)
530 Buffer = L"Modem";
531 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0C") != 0)
532 Buffer = L"Power Button";
533 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0E") != 0)
534 Buffer = L"Sleep Button";
535 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0D") != 0)
536 Buffer = L"Lid Switch";
537 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C09") != 0)
538 Buffer = L"ACPI Embedded Controller";
539 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0B") != 0)
540 Buffer = L"ACPI Fan";
541 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0A03") != 0)
542 Buffer = L"PCI Root Bridge";
543 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0A") != 0)
544 Buffer = L"ACPI Battery";
545 else if (wcsstr(DeviceData->HardwareIDs, L"PNP0C0F") != 0)
546 Buffer = L"PCI Interrupt Link";
547 else if (wcsstr(DeviceData->HardwareIDs, L"ACPI_PWR") != 0)
548 Buffer = L"ACPI Power Resource";
549 else if (wcsstr(DeviceData->HardwareIDs, L"Processor") != 0)
550 Buffer = L"Processor";
551 else if (wcsstr(DeviceData->HardwareIDs, L"ACPI_SYS") != 0)
552 Buffer = L"ACPI System";
553 else if (wcsstr(DeviceData->HardwareIDs, L"ThermalZone") != 0)
554 Buffer = L"ACPI Thermal Zone";
555 else if (wcsstr(DeviceData->HardwareIDs, L"ACPI0002") != 0)
556 Buffer = L"Smart Battery";
557 else if (wcsstr(DeviceData->HardwareIDs, L"ACPI0003") != 0)
558 Buffer = L"AC Adapter";
559 /* Simply checking if AcpiHandle is NULL eliminates the need to check
560 * for the 4 different names that ACPI knows the fixed feature button as internally
561 */
562 else if (!DeviceData->AcpiHandle)
563 Buffer = L"ACPI Fixed Feature Button";
564 else
565 Buffer = L"Other ACPI device";
566
567 DPRINT("\tDeviceTextDescription :%ws\n", Buffer);
568
569 Irp->IoStatus.Information = (ULONG_PTR) Buffer;
570 }
571 status = STATUS_SUCCESS;
572 break;
573
574 default:
575 status = Irp->IoStatus.Status;
576 break;
577 }
578
579 return status;
580
581 }
582
583 NTSTATUS
584 Bus_PDO_QueryResources(
585 PPDO_DEVICE_DATA DeviceData,
586 PIRP Irp )
587 {
588 ULONG NumberOfResources = 0;
589 PCM_RESOURCE_LIST ResourceList;
590 PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDescriptor;
591 ACPI_STATUS AcpiStatus;
592 ACPI_BUFFER Buffer;
593 ACPI_RESOURCE* resource;
594 ULONG ResourceListSize;
595 ULONG i;
596
597 /* Get current resources */
598 Buffer.Length = 0;
599 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
600 if ((!ACPI_SUCCESS(AcpiStatus) && AcpiStatus != AE_BUFFER_OVERFLOW) ||
601 Buffer.Length == 0)
602 {
603 return Irp->IoStatus.Status;
604 }
605
606 Buffer.Pointer = ExAllocatePool(PagedPool, Buffer.Length);
607 if (!Buffer.Pointer)
608 return STATUS_INSUFFICIENT_RESOURCES;
609
610 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
611 if (!ACPI_SUCCESS(AcpiStatus))
612 {
613 DPRINT1("AcpiGetCurrentResources #2 failed (0x%x)\n", AcpiStatus);
614 ASSERT(FALSE);
615 return STATUS_UNSUCCESSFUL;
616 }
617
618 resource= Buffer.Pointer;
619 /* Count number of resources */
620 while (resource->Type != ACPI_RESOURCE_TYPE_END_TAG)
621 {
622 switch (resource->Type)
623 {
624 case ACPI_RESOURCE_TYPE_IRQ:
625 {
626 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
627 NumberOfResources += irq_data->InterruptCount;
628 break;
629 }
630 case ACPI_RESOURCE_TYPE_DMA:
631 {
632 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
633 NumberOfResources += dma_data->ChannelCount;
634 break;
635 }
636 case ACPI_RESOURCE_TYPE_IO:
637 {
638 NumberOfResources++;
639 break;
640 }
641 default:
642 {
643 DPRINT1("Unknown resource type: %d\n", resource->Type);
644 break;
645 }
646 }
647 resource = ACPI_NEXT_RESOURCE(resource);
648 }
649
650 /* Allocate memory */
651 ResourceListSize = sizeof(CM_RESOURCE_LIST) + sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR) * (NumberOfResources - 1);
652 ResourceList = (PCM_RESOURCE_LIST)ExAllocatePool(PagedPool, ResourceListSize);
653
654 if (!ResourceList)
655 {
656 ExFreePool(Buffer.Pointer);
657 return STATUS_INSUFFICIENT_RESOURCES;
658 }
659 ResourceList->Count = 1;
660 ResourceList->List[0].InterfaceType = Internal; /* FIXME */
661 ResourceList->List[0].BusNumber = 0; /* We're the only ACPI bus device in the system */
662 ResourceList->List[0].PartialResourceList.Version = 1;
663 ResourceList->List[0].PartialResourceList.Revision = 1;
664 ResourceList->List[0].PartialResourceList.Count = NumberOfResources;
665 ResourceDescriptor = ResourceList->List[0].PartialResourceList.PartialDescriptors;
666
667 /* Fill resources list structure */
668 while (resource->Type != ACPI_RESOURCE_TYPE_END_TAG)
669 {
670 switch (resource->Type)
671 {
672 case ACPI_RESOURCE_TYPE_IRQ:
673 {
674 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
675 for (i = 0; i < irq_data->InterruptCount; i++)
676 {
677 ResourceDescriptor->Type = CmResourceTypeInterrupt;
678
679 ResourceDescriptor->ShareDisposition =
680 (irq_data->Sharable == ACPI_SHARED ? CmResourceShareShared : CmResourceShareDeviceExclusive);
681 ResourceDescriptor->Flags =
682 (irq_data->Triggering == ACPI_LEVEL_SENSITIVE ? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE : CM_RESOURCE_INTERRUPT_LATCHED);
683 ResourceDescriptor->u.Interrupt.Level = irq_data->Interrupts[i];
684 ResourceDescriptor->u.Interrupt.Vector = 0;
685 ResourceDescriptor->u.Interrupt.Affinity = (KAFFINITY)(-1);
686
687 ResourceDescriptor++;
688 }
689 break;
690 }
691 case ACPI_RESOURCE_TYPE_DMA:
692 {
693 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
694 for (i = 0; i < dma_data->ChannelCount; i++)
695 {
696 ResourceDescriptor->Type = CmResourceTypeDma;
697 ResourceDescriptor->Flags = 0;
698 switch (dma_data->Type)
699 {
700 case ACPI_TYPE_A: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_A; break;
701 case ACPI_TYPE_B: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_B; break;
702 case ACPI_TYPE_F: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_F; break;
703 }
704 if (dma_data->BusMaster == ACPI_BUS_MASTER)
705 ResourceDescriptor->Flags |= CM_RESOURCE_DMA_BUS_MASTER;
706 switch (dma_data->Transfer)
707 {
708 case ACPI_TRANSFER_8: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_8; break;
709 case ACPI_TRANSFER_16: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_16; break;
710 case ACPI_TRANSFER_8_16: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_8_AND_16; break;
711 }
712 ResourceDescriptor->u.Dma.Channel = dma_data->Channels[i];
713
714 ResourceDescriptor++;
715 }
716 break;
717 }
718 case ACPI_RESOURCE_TYPE_IO:
719 {
720 ACPI_RESOURCE_IO *io_data = (ACPI_RESOURCE_IO*) &resource->Data;
721 ResourceDescriptor->Type = CmResourceTypePort;
722 ResourceDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
723 ResourceDescriptor->Flags = CM_RESOURCE_PORT_IO;
724 if (io_data->IoDecode == ACPI_DECODE_16)
725 ResourceDescriptor->Flags |= CM_RESOURCE_PORT_16_BIT_DECODE;
726 else
727 ResourceDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
728 ResourceDescriptor->u.Port.Start.u.HighPart = 0;
729 ResourceDescriptor->u.Port.Start.u.LowPart = io_data->Minimum;
730 ResourceDescriptor->u.Port.Length = io_data->AddressLength;
731
732 ResourceDescriptor++;
733 break;
734 }
735 default:
736 {
737 break;
738 }
739 }
740 resource = ACPI_NEXT_RESOURCE(resource);
741 }
742
743 ExFreePool(Buffer.Pointer);
744 Irp->IoStatus.Information = (ULONG_PTR)ResourceList;
745 return STATUS_SUCCESS;
746 }
747
748 NTSTATUS
749 Bus_PDO_QueryResourceRequirements(
750 PPDO_DEVICE_DATA DeviceData,
751 PIRP Irp )
752 {
753 ULONG NumberOfResources = 0;
754 ACPI_STATUS AcpiStatus;
755 ACPI_BUFFER Buffer;
756 ACPI_RESOURCE* resource;
757 ULONG i, RequirementsListSize;
758 PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList;
759 PIO_RESOURCE_DESCRIPTOR RequirementDescriptor;
760
761 PAGED_CODE ();
762
763
764 /* Get current resources */
765 Buffer.Length = 0;
766 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
767 if ((!ACPI_SUCCESS(AcpiStatus) && AcpiStatus != AE_BUFFER_OVERFLOW) ||
768 Buffer.Length == 0)
769 {
770 return Irp->IoStatus.Status;
771 }
772
773 Buffer.Pointer = ExAllocatePool(PagedPool, Buffer.Length);
774 if (!Buffer.Pointer)
775 return STATUS_INSUFFICIENT_RESOURCES;
776
777 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
778 if (!ACPI_SUCCESS(AcpiStatus))
779 {
780 DPRINT1("AcpiGetCurrentResources #2 failed (0x%x)\n", AcpiStatus);
781 ASSERT(FALSE);
782 return STATUS_UNSUCCESSFUL;
783 }
784
785 resource= Buffer.Pointer;
786 /* Count number of resources */
787 while (resource->Type != ACPI_RESOURCE_TYPE_END_TAG)
788 {
789 switch (resource->Type)
790 {
791 case ACPI_RESOURCE_TYPE_IRQ:
792 {
793 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
794 NumberOfResources += irq_data->InterruptCount;
795 break;
796 }
797 case ACPI_RESOURCE_TYPE_DMA:
798 {
799 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
800 NumberOfResources += dma_data->ChannelCount;
801 break;
802 }
803 case ACPI_RESOURCE_TYPE_IO:
804 {
805 NumberOfResources++;
806 break;
807 }
808 default:
809 {
810 break;
811 }
812 }
813 resource = ACPI_NEXT_RESOURCE(resource);
814 }
815
816 RequirementsListSize = sizeof(IO_RESOURCE_REQUIREMENTS_LIST) + sizeof(IO_RESOURCE_DESCRIPTOR) * (NumberOfResources - 1);
817 RequirementsList = (PIO_RESOURCE_REQUIREMENTS_LIST)ExAllocatePool(PagedPool, RequirementsListSize);
818
819 if (!RequirementsList)
820 {
821 ExFreePool(Buffer.Pointer);
822 return STATUS_INSUFFICIENT_RESOURCES;
823 }
824 RequirementsList->ListSize = RequirementsListSize;
825 RequirementsList->InterfaceType = Internal;
826 RequirementsList->BusNumber = 0;
827 RequirementsList->SlotNumber = 0; /* Not used by WDM drivers */
828 RequirementsList->AlternativeLists = 1;
829 RequirementsList->List[0].Version = 1;
830 RequirementsList->List[0].Revision = 1;
831 RequirementsList->List[0].Count = NumberOfResources;
832 RequirementDescriptor = RequirementsList->List[0].Descriptors;
833
834 /* Fill resources list structure */
835 while (resource->Type != ACPI_RESOURCE_TYPE_END_TAG)
836 {
837 switch (resource->Type)
838 {
839 case ACPI_RESOURCE_TYPE_IRQ:
840 {
841 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
842 for (i = 0; i < irq_data->InterruptCount; i++)
843 {
844 RequirementDescriptor->Option = 0; /* Required */
845 RequirementDescriptor->Type = CmResourceTypeInterrupt;
846 RequirementDescriptor->ShareDisposition = (irq_data->Sharable == ACPI_SHARED ? CmResourceShareShared : CmResourceShareDeviceExclusive);
847 RequirementDescriptor->Flags =(irq_data->Triggering == ACPI_LEVEL_SENSITIVE ? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE : CM_RESOURCE_INTERRUPT_LATCHED);
848 RequirementDescriptor->u.Interrupt.MinimumVector = irq_data->Interrupts[i];
849
850 RequirementDescriptor++;
851 }
852 break;
853 }
854 case ACPI_RESOURCE_TYPE_DMA:
855 {
856 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
857 for (i = 0; i < dma_data->ChannelCount; i++)
858 {
859 RequirementDescriptor->Type = CmResourceTypeDma;
860 RequirementDescriptor->Flags = 0;
861 switch (dma_data->Type)
862 {
863 case ACPI_TYPE_A: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_A; break;
864 case ACPI_TYPE_B: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_B; break;
865 case ACPI_TYPE_F: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_F; break;
866 }
867 if (dma_data->BusMaster == ACPI_BUS_MASTER)
868 RequirementDescriptor->Flags |= CM_RESOURCE_DMA_BUS_MASTER;
869 switch (dma_data->Transfer)
870 {
871 case ACPI_TRANSFER_8: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_8; break;
872 case ACPI_TRANSFER_16: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_16; break;
873 case ACPI_TRANSFER_8_16: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_8_AND_16; break;
874 }
875
876 RequirementDescriptor->Option = 0; /* Required */
877 RequirementDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
878 RequirementDescriptor->u.Dma.MinimumChannel = dma_data->Channels[i];
879 RequirementDescriptor++;
880 }
881 break;
882 }
883 case ACPI_RESOURCE_TYPE_IO:
884 {
885 ACPI_RESOURCE_IO *io_data = (ACPI_RESOURCE_IO*) &resource->Data;
886 RequirementDescriptor->Flags = CM_RESOURCE_PORT_IO;
887 if (io_data->IoDecode == ACPI_DECODE_16)
888 RequirementDescriptor->Flags |= CM_RESOURCE_PORT_16_BIT_DECODE;
889 else
890 RequirementDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
891
892 RequirementDescriptor->u.Port.Length = io_data->AddressLength;
893
894 RequirementDescriptor->Option = 0; /* Required */
895 RequirementDescriptor->Type = CmResourceTypePort;
896 RequirementDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
897 RequirementDescriptor->u.Port.Alignment = 1; /* Start address is specified, so it doesn't matter */
898 RequirementDescriptor->u.Port.MinimumAddress.QuadPart = io_data->Minimum;
899 RequirementDescriptor->u.Port.MaximumAddress.QuadPart = io_data->Maximum;
900
901 RequirementDescriptor++;
902 break;
903 }
904 default:
905 {
906 break;
907 }
908 }
909 resource = ACPI_NEXT_RESOURCE(resource);
910 }
911 ExFreePool(Buffer.Pointer);
912
913 Irp->IoStatus.Information = (ULONG_PTR)RequirementsList;
914
915 return STATUS_SUCCESS;
916 }
917
918 NTSTATUS
919 Bus_PDO_QueryDeviceRelations(
920 PPDO_DEVICE_DATA DeviceData,
921 PIRP Irp )
922 /*++
923
924 Routine Description:
925
926 The PnP Manager sends this IRP to gather information about
927 devices with a relationship to the specified device.
928 Bus drivers must handle this request for TargetDeviceRelation
929 for their child devices (child PDOs).
930
931 If a driver returns relations in response to this IRP,
932 it allocates a DEVICE_RELATIONS structure from paged
933 memory containing a count and the appropriate number of
934 device object pointers. The PnP Manager frees the structure
935 when it is no longer needed. If a driver replaces a
936 DEVICE_RELATIONS structure allocated by another driver,
937 it must free the previous structure.
938
939 A driver must reference the PDO of any device that it
940 reports in this IRP (ObReferenceObject). The PnP Manager
941 removes the reference when appropriate.
942
943 Arguments:
944
945 DeviceData - Pointer to the PDO's device extension.
946 Irp - Pointer to the irp.
947
948 Return Value:
949
950 NT STATUS
951
952 --*/
953 {
954
955 PIO_STACK_LOCATION stack;
956 PDEVICE_RELATIONS deviceRelations;
957 NTSTATUS status;
958
959 PAGED_CODE ();
960
961 stack = IoGetCurrentIrpStackLocation (Irp);
962
963 switch (stack->Parameters.QueryDeviceRelations.Type) {
964
965 case TargetDeviceRelation:
966
967 deviceRelations = (PDEVICE_RELATIONS) Irp->IoStatus.Information;
968 if (deviceRelations) {
969 //
970 // Only PDO can handle this request. Somebody above
971 // is not playing by rule.
972 //
973 ASSERTMSG("Someone above is handling TargetDeviceRelation", !deviceRelations);
974 }
975
976 deviceRelations = (PDEVICE_RELATIONS)
977 ExAllocatePoolWithTag (PagedPool,
978 sizeof(DEVICE_RELATIONS),
979 'IPCA');
980 if (!deviceRelations) {
981 status = STATUS_INSUFFICIENT_RESOURCES;
982 break;
983 }
984
985 //
986 // There is only one PDO pointer in the structure
987 // for this relation type. The PnP Manager removes
988 // the reference to the PDO when the driver or application
989 // un-registers for notification on the device.
990 //
991
992 deviceRelations->Count = 1;
993 deviceRelations->Objects[0] = DeviceData->Common.Self;
994 ObReferenceObject(DeviceData->Common.Self);
995
996 status = STATUS_SUCCESS;
997 Irp->IoStatus.Information = (ULONG_PTR) deviceRelations;
998 break;
999
1000 case BusRelations: // Not handled by PDO
1001 case EjectionRelations: // optional for PDO
1002 case RemovalRelations: // // optional for PDO
1003 default:
1004 status = Irp->IoStatus.Status;
1005 }
1006
1007 return status;
1008 }
1009
1010 NTSTATUS
1011 Bus_PDO_QueryBusInformation(
1012 PPDO_DEVICE_DATA DeviceData,
1013 PIRP Irp )
1014 /*++
1015
1016 Routine Description:
1017
1018 The PnP Manager uses this IRP to request the type and
1019 instance number of a device's parent bus. Bus drivers
1020 should handle this request for their child devices (PDOs).
1021
1022 Arguments:
1023
1024 DeviceData - Pointer to the PDO's device extension.
1025 Irp - Pointer to the irp.
1026
1027 Return Value:
1028
1029 NT STATUS
1030
1031 --*/
1032 {
1033
1034 PPNP_BUS_INFORMATION busInfo;
1035
1036 PAGED_CODE ();
1037
1038 busInfo = ExAllocatePoolWithTag (PagedPool, sizeof(PNP_BUS_INFORMATION),
1039 'IPCA');
1040
1041 if (busInfo == NULL) {
1042 return STATUS_INSUFFICIENT_RESOURCES;
1043 }
1044
1045 busInfo->BusTypeGuid = GUID_ACPI_INTERFACE_STANDARD;
1046
1047 busInfo->LegacyBusType = InternalPowerBus;
1048
1049 busInfo->BusNumber = 0; //fixme
1050
1051 Irp->IoStatus.Information = (ULONG_PTR)busInfo;
1052
1053 return STATUS_SUCCESS;
1054 }
1055
1056
1057 NTSTATUS
1058 Bus_GetDeviceCapabilities(
1059 PDEVICE_OBJECT DeviceObject,
1060 PDEVICE_CAPABILITIES DeviceCapabilities
1061 )
1062 {
1063 IO_STATUS_BLOCK ioStatus;
1064 KEVENT pnpEvent;
1065 NTSTATUS status;
1066 PDEVICE_OBJECT targetObject;
1067 PIO_STACK_LOCATION irpStack;
1068 PIRP pnpIrp;
1069
1070 PAGED_CODE();
1071
1072 //
1073 // Initialize the capabilities that we will send down
1074 //
1075 RtlZeroMemory( DeviceCapabilities, sizeof(DEVICE_CAPABILITIES) );
1076 DeviceCapabilities->Size = sizeof(DEVICE_CAPABILITIES);
1077 DeviceCapabilities->Version = 1;
1078 DeviceCapabilities->Address = -1;
1079 DeviceCapabilities->UINumber = -1;
1080
1081 //
1082 // Initialize the event
1083 //
1084 KeInitializeEvent( &pnpEvent, NotificationEvent, FALSE );
1085
1086 targetObject = IoGetAttachedDeviceReference( DeviceObject );
1087
1088 //
1089 // Build an Irp
1090 //
1091 pnpIrp = IoBuildSynchronousFsdRequest(
1092 IRP_MJ_PNP,
1093 targetObject,
1094 NULL,
1095 0,
1096 NULL,
1097 &pnpEvent,
1098 &ioStatus
1099 );
1100 if (pnpIrp == NULL) {
1101
1102 status = STATUS_INSUFFICIENT_RESOURCES;
1103 goto GetDeviceCapabilitiesExit;
1104
1105 }
1106
1107 //
1108 // Pnp Irps all begin life as STATUS_NOT_SUPPORTED;
1109 //
1110 pnpIrp->IoStatus.Status = STATUS_NOT_SUPPORTED;
1111
1112 //
1113 // Get the top of stack
1114 //
1115 irpStack = IoGetNextIrpStackLocation( pnpIrp );
1116
1117 //
1118 // Set the top of stack
1119 //
1120 RtlZeroMemory( irpStack, sizeof(IO_STACK_LOCATION ) );
1121 irpStack->MajorFunction = IRP_MJ_PNP;
1122 irpStack->MinorFunction = IRP_MN_QUERY_CAPABILITIES;
1123 irpStack->Parameters.DeviceCapabilities.Capabilities = DeviceCapabilities;
1124
1125 //
1126 // Call the driver
1127 //
1128 status = IoCallDriver( targetObject, pnpIrp );
1129 if (status == STATUS_PENDING) {
1130
1131 //
1132 // Block until the irp comes back.
1133 // Important thing to note here is when you allocate
1134 // the memory for an event in the stack you must do a
1135 // KernelMode wait instead of UserMode to prevent
1136 // the stack from getting paged out.
1137 //
1138
1139 KeWaitForSingleObject(
1140 &pnpEvent,
1141 Executive,
1142 KernelMode,
1143 FALSE,
1144 NULL
1145 );
1146 status = ioStatus.Status;
1147
1148 }
1149
1150 GetDeviceCapabilitiesExit:
1151 //
1152 // Done with reference
1153 //
1154 ObDereferenceObject( targetObject );
1155
1156 //
1157 // Done
1158 //
1159 return status;
1160
1161 }
1162
1163