25fbe324f4f3c02f068d4782802637858b508d30
[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 BOOLEAN Done;
589 ULONG NumberOfResources = 0;
590 PCM_RESOURCE_LIST ResourceList;
591 PCM_PARTIAL_RESOURCE_DESCRIPTOR ResourceDescriptor;
592 ACPI_STATUS AcpiStatus;
593 ACPI_BUFFER Buffer;
594 ACPI_RESOURCE* resource;
595 ULONG ResourceListSize;
596 ULONG i;
597
598
599 /* Get current resources */
600 Buffer.Length = 0;
601 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
602 if (!ACPI_SUCCESS(AcpiStatus))
603 {
604 return STATUS_SUCCESS;
605 }
606 if (Buffer.Length > 0)
607 {
608 Buffer.Pointer = ExAllocatePool(PagedPool, Buffer.Length);
609 if (!Buffer.Pointer)
610 {
611 ASSERT(FALSE);
612 }
613 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
614 if (!ACPI_SUCCESS(AcpiStatus))
615 {
616 ASSERT(FALSE);
617 }
618 }
619
620 resource= Buffer.Pointer;
621 /* Count number of resources */
622 Done = FALSE;
623 while (!Done)
624 {
625 switch (resource->Type)
626 {
627 case ACPI_RESOURCE_TYPE_IRQ:
628 {
629 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
630 NumberOfResources += irq_data->InterruptCount;
631 break;
632 }
633 case ACPI_RESOURCE_TYPE_DMA:
634 {
635 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
636 NumberOfResources += dma_data->ChannelCount;
637 break;
638 }
639 case ACPI_RESOURCE_TYPE_IO:
640 {
641 NumberOfResources++;
642 break;
643 }
644 case ACPI_RESOURCE_TYPE_END_TAG:
645 {
646 Done = TRUE;
647 break;
648 }
649 default:
650 {
651 break;
652 }
653 }
654 resource = ACPI_NEXT_RESOURCE(resource);
655 }
656
657 /* Allocate memory */
658 ResourceListSize = sizeof(CM_RESOURCE_LIST) + sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR) * (NumberOfResources - 1);
659 ResourceList = (PCM_RESOURCE_LIST)ExAllocatePool(PagedPool, ResourceListSize);
660
661 if (!ResourceList)
662 return FALSE;
663 ResourceList->Count = 1;
664 ResourceList->List[0].InterfaceType = Internal; /* FIXME */
665 ResourceList->List[0].BusNumber = 0; /* We're the only ACPI bus device in the system */
666 ResourceList->List[0].PartialResourceList.Version = 1;
667 ResourceList->List[0].PartialResourceList.Revision = 1;
668 ResourceList->List[0].PartialResourceList.Count = NumberOfResources;
669 ResourceDescriptor = ResourceList->List[0].PartialResourceList.PartialDescriptors;
670
671 /* Fill resources list structure */
672 Done = FALSE;
673 while (!Done)
674 {
675 switch (resource->Type)
676 {
677 case ACPI_RESOURCE_TYPE_IRQ:
678 {
679 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
680 for (i = 0; i < irq_data->InterruptCount; i++)
681 {
682 ResourceDescriptor->Type = CmResourceTypeInterrupt;
683
684 ResourceDescriptor->ShareDisposition =
685 (irq_data->Sharable == ACPI_SHARED ? CmResourceShareShared : CmResourceShareDeviceExclusive);
686 ResourceDescriptor->Flags =
687 (irq_data->Triggering == ACPI_LEVEL_SENSITIVE ? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE : CM_RESOURCE_INTERRUPT_LATCHED);
688 ResourceDescriptor->u.Interrupt.Level = irq_data->Interrupts[i];
689 ResourceDescriptor->u.Interrupt.Vector = 0;
690 ResourceDescriptor->u.Interrupt.Affinity = (KAFFINITY)(-1);
691
692 ResourceDescriptor++;
693 }
694 break;
695 }
696 case ACPI_RESOURCE_TYPE_DMA:
697 {
698 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
699 for (i = 0; i < dma_data->ChannelCount; i++)
700 {
701 ResourceDescriptor->Type = CmResourceTypeDma;
702 ResourceDescriptor->Flags = 0;
703 switch (dma_data->Type)
704 {
705 case ACPI_TYPE_A: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_A; break;
706 case ACPI_TYPE_B: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_B; break;
707 case ACPI_TYPE_F: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_F; break;
708 }
709 if (dma_data->BusMaster == ACPI_BUS_MASTER)
710 ResourceDescriptor->Flags |= CM_RESOURCE_DMA_BUS_MASTER;
711 switch (dma_data->Transfer)
712 {
713 case ACPI_TRANSFER_8: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_8; break;
714 case ACPI_TRANSFER_16: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_16; break;
715 case ACPI_TRANSFER_8_16: ResourceDescriptor->Flags |= CM_RESOURCE_DMA_8_AND_16; break;
716 }
717 ResourceDescriptor->u.Dma.Channel = dma_data->Channels[i];
718
719 ResourceDescriptor++;
720 }
721 break;
722 }
723 case ACPI_RESOURCE_TYPE_IO:
724 {
725 ACPI_RESOURCE_IO *io_data = (ACPI_RESOURCE_IO*) &resource->Data;
726 ResourceDescriptor->Type = CmResourceTypePort;
727 ResourceDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
728 ResourceDescriptor->Flags = CM_RESOURCE_PORT_IO;
729 if (io_data->IoDecode == ACPI_DECODE_16)
730 ResourceDescriptor->Flags |= CM_RESOURCE_PORT_16_BIT_DECODE;
731 else
732 ResourceDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
733 ResourceDescriptor->u.Port.Start.u.HighPart = 0;
734 ResourceDescriptor->u.Port.Start.u.LowPart = io_data->Minimum;
735 ResourceDescriptor->u.Port.Length = io_data->AddressLength;
736
737 ResourceDescriptor++;
738 break;
739 }
740 case ACPI_RESOURCE_TYPE_END_TAG:
741 {
742 Done = TRUE;
743 break;
744 }
745 default:
746 {
747 DPRINT1("Unhandled resource type\n");
748 break;
749 }
750 }
751 resource = ACPI_NEXT_RESOURCE(resource);
752 }
753
754 ExFreePool(Buffer.Pointer);
755 Irp->IoStatus.Information = (ULONG_PTR)ResourceList;
756 return STATUS_SUCCESS;
757 }
758
759 NTSTATUS
760 Bus_PDO_QueryResourceRequirements(
761 PPDO_DEVICE_DATA DeviceData,
762 PIRP Irp )
763 {
764 BOOLEAN Done;
765 ULONG NumberOfResources = 0;
766 ACPI_STATUS AcpiStatus;
767 ACPI_BUFFER Buffer;
768 ACPI_RESOURCE* resource;
769 ULONG i, RequirementsListSize;
770 PIO_RESOURCE_REQUIREMENTS_LIST RequirementsList;
771 PIO_RESOURCE_DESCRIPTOR RequirementDescriptor;
772
773 PAGED_CODE ();
774
775
776 /* Get current resources */
777 Buffer.Length = 0;
778 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
779 if (!ACPI_SUCCESS(AcpiStatus))
780 {
781 return STATUS_SUCCESS;
782 }
783 if (Buffer.Length > 0)
784 {
785 Buffer.Pointer = ExAllocatePool(PagedPool, Buffer.Length);
786 if (!Buffer.Pointer)
787 {
788 ASSERT(FALSE);
789 }
790 AcpiStatus = AcpiGetCurrentResources(DeviceData->AcpiHandle, &Buffer);
791 if (!ACPI_SUCCESS(AcpiStatus))
792 {
793 ASSERT(FALSE);
794 }
795 }
796
797 resource= Buffer.Pointer;
798 /* Count number of resources */
799 Done = FALSE;
800 while (!Done)
801 {
802 switch (resource->Type)
803 {
804 case ACPI_RESOURCE_TYPE_IRQ:
805 {
806 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
807 NumberOfResources += irq_data->InterruptCount;
808 break;
809 }
810 case ACPI_RESOURCE_TYPE_DMA:
811 {
812 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
813 NumberOfResources += dma_data->ChannelCount;
814 break;
815 }
816 case ACPI_RESOURCE_TYPE_IO:
817 {
818 NumberOfResources++;
819 break;
820 }
821 case ACPI_RESOURCE_TYPE_END_TAG:
822 {
823 Done = TRUE;
824 break;
825 }
826 default:
827 {
828 break;
829 }
830 }
831 resource = ACPI_NEXT_RESOURCE(resource);
832 }
833
834 RequirementsListSize = sizeof(IO_RESOURCE_REQUIREMENTS_LIST) + sizeof(IO_RESOURCE_DESCRIPTOR) * (NumberOfResources - 1);
835 RequirementsList = (PIO_RESOURCE_REQUIREMENTS_LIST)ExAllocatePool(PagedPool, RequirementsListSize);
836
837 if (!RequirementsList)
838 {
839 ExFreePool(Buffer.Pointer);
840 return STATUS_SUCCESS;
841 }
842 RequirementsList->ListSize = RequirementsListSize;
843 RequirementsList->InterfaceType = Internal;
844 RequirementsList->BusNumber = 0;
845 RequirementsList->SlotNumber = 0; /* Not used by WDM drivers */
846 RequirementsList->AlternativeLists = 1;
847 RequirementsList->List[0].Version = 1;
848 RequirementsList->List[0].Revision = 1;
849 RequirementsList->List[0].Count = NumberOfResources;
850 RequirementDescriptor = RequirementsList->List[0].Descriptors;
851
852 /* Fill resources list structure */
853 Done = FALSE;
854 while (!Done)
855 {
856 switch (resource->Type)
857 {
858 case ACPI_RESOURCE_TYPE_IRQ:
859 {
860 ACPI_RESOURCE_IRQ *irq_data = (ACPI_RESOURCE_IRQ*) &resource->Data;
861 for (i = 0; i < irq_data->InterruptCount; i++)
862 {
863 RequirementDescriptor->Option = 0; /* Required */
864 RequirementDescriptor->Type = CmResourceTypeInterrupt;
865 RequirementDescriptor->ShareDisposition = (irq_data->Sharable == ACPI_SHARED ? CmResourceShareShared : CmResourceShareDeviceExclusive);
866 RequirementDescriptor->Flags =(irq_data->Triggering == ACPI_LEVEL_SENSITIVE ? CM_RESOURCE_INTERRUPT_LEVEL_SENSITIVE : CM_RESOURCE_INTERRUPT_LATCHED);
867 RequirementDescriptor->u.Interrupt.MinimumVector = irq_data->Interrupts[i];
868
869 RequirementDescriptor++;
870 }
871 break;
872 }
873 case ACPI_RESOURCE_TYPE_DMA:
874 {
875 ACPI_RESOURCE_DMA *dma_data = (ACPI_RESOURCE_DMA*) &resource->Data;
876 for (i = 0; i < dma_data->ChannelCount; i++)
877 {
878 RequirementDescriptor->Type = CmResourceTypeDma;
879 RequirementDescriptor->Flags = 0;
880 switch (dma_data->Type)
881 {
882 case ACPI_TYPE_A: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_A; break;
883 case ACPI_TYPE_B: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_B; break;
884 case ACPI_TYPE_F: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_TYPE_F; break;
885 }
886 if (dma_data->BusMaster == ACPI_BUS_MASTER)
887 RequirementDescriptor->Flags |= CM_RESOURCE_DMA_BUS_MASTER;
888 switch (dma_data->Transfer)
889 {
890 case ACPI_TRANSFER_8: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_8; break;
891 case ACPI_TRANSFER_16: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_16; break;
892 case ACPI_TRANSFER_8_16: RequirementDescriptor->Flags |= CM_RESOURCE_DMA_8_AND_16; break;
893 }
894
895 RequirementDescriptor->Option = 0; /* Required */
896 RequirementDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
897 RequirementDescriptor->u.Dma.MinimumChannel = dma_data->Channels[i];
898 RequirementDescriptor++;
899 }
900 break;
901 }
902 case ACPI_RESOURCE_TYPE_IO:
903 {
904 ACPI_RESOURCE_IO *io_data = (ACPI_RESOURCE_IO*) &resource->Data;
905 RequirementDescriptor->Flags = CM_RESOURCE_PORT_IO;
906 if (io_data->IoDecode == ACPI_DECODE_16)
907 RequirementDescriptor->Flags |= CM_RESOURCE_PORT_16_BIT_DECODE;
908 else
909 RequirementDescriptor->Flags |= CM_RESOURCE_PORT_10_BIT_DECODE;
910
911 RequirementDescriptor->u.Port.Length = io_data->AddressLength;
912
913 RequirementDescriptor->Option = 0; /* Required */
914 RequirementDescriptor->Type = CmResourceTypePort;
915 RequirementDescriptor->ShareDisposition = CmResourceShareDriverExclusive;
916 RequirementDescriptor->u.Port.Alignment = 1; /* Start address is specified, so it doesn't matter */
917 RequirementDescriptor->u.Port.MinimumAddress.QuadPart = io_data->Minimum;
918 RequirementDescriptor->u.Port.MaximumAddress.QuadPart = io_data->Maximum;
919
920 RequirementDescriptor++;
921 break;
922 }
923 case ACPI_RESOURCE_TYPE_END_TAG:
924 {
925 Done = TRUE;
926 break;
927 }
928 default:
929 {
930 DPRINT1("Unhandled resource type\n");
931 break;
932 }
933 }
934 resource = ACPI_NEXT_RESOURCE(resource);
935 }
936 ExFreePool(Buffer.Pointer);
937
938 Irp->IoStatus.Information = (ULONG_PTR)RequirementsList;
939
940 return STATUS_SUCCESS;
941 }
942
943 NTSTATUS
944 Bus_PDO_QueryDeviceRelations(
945 PPDO_DEVICE_DATA DeviceData,
946 PIRP Irp )
947 /*++
948
949 Routine Description:
950
951 The PnP Manager sends this IRP to gather information about
952 devices with a relationship to the specified device.
953 Bus drivers must handle this request for TargetDeviceRelation
954 for their child devices (child PDOs).
955
956 If a driver returns relations in response to this IRP,
957 it allocates a DEVICE_RELATIONS structure from paged
958 memory containing a count and the appropriate number of
959 device object pointers. The PnP Manager frees the structure
960 when it is no longer needed. If a driver replaces a
961 DEVICE_RELATIONS structure allocated by another driver,
962 it must free the previous structure.
963
964 A driver must reference the PDO of any device that it
965 reports in this IRP (ObReferenceObject). The PnP Manager
966 removes the reference when appropriate.
967
968 Arguments:
969
970 DeviceData - Pointer to the PDO's device extension.
971 Irp - Pointer to the irp.
972
973 Return Value:
974
975 NT STATUS
976
977 --*/
978 {
979
980 PIO_STACK_LOCATION stack;
981 PDEVICE_RELATIONS deviceRelations;
982 NTSTATUS status;
983
984 PAGED_CODE ();
985
986 stack = IoGetCurrentIrpStackLocation (Irp);
987
988 switch (stack->Parameters.QueryDeviceRelations.Type) {
989
990 case TargetDeviceRelation:
991
992 deviceRelations = (PDEVICE_RELATIONS) Irp->IoStatus.Information;
993 if (deviceRelations) {
994 //
995 // Only PDO can handle this request. Somebody above
996 // is not playing by rule.
997 //
998 ASSERTMSG("Someone above is handling TargetDeviceRelation", !deviceRelations);
999 }
1000
1001 deviceRelations = (PDEVICE_RELATIONS)
1002 ExAllocatePoolWithTag (PagedPool,
1003 sizeof(DEVICE_RELATIONS),
1004 'IPCA');
1005 if (!deviceRelations) {
1006 status = STATUS_INSUFFICIENT_RESOURCES;
1007 break;
1008 }
1009
1010 //
1011 // There is only one PDO pointer in the structure
1012 // for this relation type. The PnP Manager removes
1013 // the reference to the PDO when the driver or application
1014 // un-registers for notification on the device.
1015 //
1016
1017 deviceRelations->Count = 1;
1018 deviceRelations->Objects[0] = DeviceData->Common.Self;
1019 ObReferenceObject(DeviceData->Common.Self);
1020
1021 status = STATUS_SUCCESS;
1022 Irp->IoStatus.Information = (ULONG_PTR) deviceRelations;
1023 break;
1024
1025 case BusRelations: // Not handled by PDO
1026 case EjectionRelations: // optional for PDO
1027 case RemovalRelations: // // optional for PDO
1028 default:
1029 status = Irp->IoStatus.Status;
1030 }
1031
1032 return status;
1033 }
1034
1035 NTSTATUS
1036 Bus_PDO_QueryBusInformation(
1037 PPDO_DEVICE_DATA DeviceData,
1038 PIRP Irp )
1039 /*++
1040
1041 Routine Description:
1042
1043 The PnP Manager uses this IRP to request the type and
1044 instance number of a device's parent bus. Bus drivers
1045 should handle this request for their child devices (PDOs).
1046
1047 Arguments:
1048
1049 DeviceData - Pointer to the PDO's device extension.
1050 Irp - Pointer to the irp.
1051
1052 Return Value:
1053
1054 NT STATUS
1055
1056 --*/
1057 {
1058
1059 PPNP_BUS_INFORMATION busInfo;
1060
1061 PAGED_CODE ();
1062
1063 busInfo = ExAllocatePoolWithTag (PagedPool, sizeof(PNP_BUS_INFORMATION),
1064 'IPCA');
1065
1066 if (busInfo == NULL) {
1067 return STATUS_INSUFFICIENT_RESOURCES;
1068 }
1069
1070 busInfo->BusTypeGuid = GUID_ACPI_INTERFACE_STANDARD;
1071
1072 busInfo->LegacyBusType = InternalPowerBus;
1073
1074 busInfo->BusNumber = 0; //fixme
1075
1076 Irp->IoStatus.Information = (ULONG_PTR)busInfo;
1077
1078 return STATUS_SUCCESS;
1079 }
1080
1081
1082 NTSTATUS
1083 Bus_GetDeviceCapabilities(
1084 PDEVICE_OBJECT DeviceObject,
1085 PDEVICE_CAPABILITIES DeviceCapabilities
1086 )
1087 {
1088 IO_STATUS_BLOCK ioStatus;
1089 KEVENT pnpEvent;
1090 NTSTATUS status;
1091 PDEVICE_OBJECT targetObject;
1092 PIO_STACK_LOCATION irpStack;
1093 PIRP pnpIrp;
1094
1095 PAGED_CODE();
1096
1097 //
1098 // Initialize the capabilities that we will send down
1099 //
1100 RtlZeroMemory( DeviceCapabilities, sizeof(DEVICE_CAPABILITIES) );
1101 DeviceCapabilities->Size = sizeof(DEVICE_CAPABILITIES);
1102 DeviceCapabilities->Version = 1;
1103 DeviceCapabilities->Address = -1;
1104 DeviceCapabilities->UINumber = -1;
1105
1106 //
1107 // Initialize the event
1108 //
1109 KeInitializeEvent( &pnpEvent, NotificationEvent, FALSE );
1110
1111 targetObject = IoGetAttachedDeviceReference( DeviceObject );
1112
1113 //
1114 // Build an Irp
1115 //
1116 pnpIrp = IoBuildSynchronousFsdRequest(
1117 IRP_MJ_PNP,
1118 targetObject,
1119 NULL,
1120 0,
1121 NULL,
1122 &pnpEvent,
1123 &ioStatus
1124 );
1125 if (pnpIrp == NULL) {
1126
1127 status = STATUS_INSUFFICIENT_RESOURCES;
1128 goto GetDeviceCapabilitiesExit;
1129
1130 }
1131
1132 //
1133 // Pnp Irps all begin life as STATUS_NOT_SUPPORTED;
1134 //
1135 pnpIrp->IoStatus.Status = STATUS_NOT_SUPPORTED;
1136
1137 //
1138 // Get the top of stack
1139 //
1140 irpStack = IoGetNextIrpStackLocation( pnpIrp );
1141
1142 //
1143 // Set the top of stack
1144 //
1145 RtlZeroMemory( irpStack, sizeof(IO_STACK_LOCATION ) );
1146 irpStack->MajorFunction = IRP_MJ_PNP;
1147 irpStack->MinorFunction = IRP_MN_QUERY_CAPABILITIES;
1148 irpStack->Parameters.DeviceCapabilities.Capabilities = DeviceCapabilities;
1149
1150 //
1151 // Call the driver
1152 //
1153 status = IoCallDriver( targetObject, pnpIrp );
1154 if (status == STATUS_PENDING) {
1155
1156 //
1157 // Block until the irp comes back.
1158 // Important thing to note here is when you allocate
1159 // the memory for an event in the stack you must do a
1160 // KernelMode wait instead of UserMode to prevent
1161 // the stack from getting paged out.
1162 //
1163
1164 KeWaitForSingleObject(
1165 &pnpEvent,
1166 Executive,
1167 KernelMode,
1168 FALSE,
1169 NULL
1170 );
1171 status = ioStatus.Status;
1172
1173 }
1174
1175 GetDeviceCapabilitiesExit:
1176 //
1177 // Done with reference
1178 //
1179 ObDereferenceObject( targetObject );
1180
1181 //
1182 // Done
1183 //
1184 return status;
1185
1186 }
1187
1188