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Read resource requirements list for devices enumerated by Root bus

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svn path=/trunk/; revision=15692
This commit is contained in:
Hervé Poussineau 2005-05-30 23:01:37 +00:00
parent 13ffb8ef14
commit 361b320cf8
1 changed files with 112 additions and 7 deletions
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119
reactos/ntoskrnl/io/pnproot.c
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@ -294,8 +294,6 @@ PdoQueryResourceRequirements(
ResourceList->ListSize = ResourceListSize;
Irp->IoStatus.Information = (ULONG_PTR)ResourceList;
return STATUS_SUCCESS;
}
else
{
@ -309,9 +307,9 @@ PdoQueryResourceRequirements(
DeviceExtension->ResourceRequirementsList,
DeviceExtension->ResourceRequirementsList->ListSize);
Irp->IoStatus.Information = (ULONG_PTR)ResourceList;
return STATUS_NOT_IMPLEMENTED;
}
return STATUS_SUCCESS;
}
@ -424,6 +422,96 @@ PnpRootPdoPowerControl(
/* Functional Device Object routines */
static NTSTATUS
PnpRootReadRegistryBinary(
IN PWSTR KeyName,
IN PWSTR ValueKeyName,
OUT PVOID* Buffer)
{
OBJECT_ATTRIBUTES ObjectAttributes;
UNICODE_STRING KeyNameU;
UNICODE_STRING ValueKeyNameU;
KEY_VALUE_PARTIAL_INFORMATION Size;
PKEY_VALUE_PARTIAL_INFORMATION Data = NULL;
ULONG DataSize = sizeof(KEY_VALUE_PARTIAL_INFORMATION);
HANDLE KeyHandle;
NTSTATUS Status;
DPRINT("Called\n");
RtlInitUnicodeString(&KeyNameU, KeyName);
RtlInitUnicodeString(&ValueKeyNameU, ValueKeyName);
InitializeObjectAttributes(
&ObjectAttributes,
&KeyNameU,
OBJ_CASE_INSENSITIVE,
NULL, /* Root dir */
NULL); /* Security descriptor */
Status = ZwOpenKey(&KeyHandle, KEY_READ, &ObjectAttributes);
if (!NT_SUCCESS(Status))
{
DPRINT("ZwOpenKey() failed (Status 0x%08lx)\n", Status);
return Status;
}
Status = ZwQueryValueKey(
KeyHandle,
&ValueKeyNameU,
KeyValuePartialInformation,
&Size, DataSize,
&DataSize);
if (Status != STATUS_BUFFER_OVERFLOW)
{
DPRINT("ZwQueryValueKey() failed (Status 0x%08lx)\n", Status);
ZwClose(KeyHandle);
return Status;
}
while (Status == STATUS_BUFFER_OVERFLOW)
{
if (Data)
ExFreePoolWithTag(Data, TAG_PNP_ROOT);
Data = (PKEY_VALUE_PARTIAL_INFORMATION)ExAllocatePoolWithTag(PagedPool, DataSize, TAG_PNP_ROOT);
if (!Data)
{
DPRINT("ExAllocatePoolWithTag() failed\n", Status);
ZwClose(KeyHandle);
return Status;
}
Status = ZwQueryValueKey(
KeyHandle,
&ValueKeyNameU,
KeyValuePartialInformation,
Data, DataSize,
&DataSize);
if (NT_SUCCESS(Status))
{
*Buffer = ExAllocatePoolWithTag(PagedPool, Data->DataLength, TAG_PNP_ROOT);
if (!*Buffer)
{
DPRINT("ExAllocatePoolWithTag() failed\n", Status);
ExFreePoolWithTag(Data, TAG_PNP_ROOT);
ZwClose(KeyHandle);
return Status;
}
RtlCopyMemory(
*Buffer,
Data->Data,
Data->DataLength);
break;
}
}
if (Data)
ExFreePoolWithTag(Data, TAG_PNP_ROOT);
ZwClose(KeyHandle);
return Status;
}
NTSTATUS
PnpRootFdoReadDeviceInfo(
PPNPROOT_DEVICE Device)
@ -448,6 +536,7 @@ PnpRootFdoReadDeviceInfo(
DPRINT("KeyName %S\n", KeyName);
/* 1. Read informations in instance key */
RtlZeroMemory(QueryTable, sizeof(QueryTable));
RtlInitUnicodeString(DeviceDesc, NULL);
@ -457,13 +546,13 @@ PnpRootFdoReadDeviceInfo(
QueryTable[0].EntryContext = DeviceDesc;
Status = RtlQueryRegistryValues(
RTL_REGISTRY_ABSOLUTE,
RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
KeyName,
QueryTable,
NULL,
NULL);
DPRINT("RtlQueryRegistryValues() returned status %x\n", Status);
DPRINT("RtlQueryRegistryValues() returned status 0x%08lx\n", Status);
if (!NT_SUCCESS(Status))
{
@ -472,6 +561,22 @@ PnpRootFdoReadDeviceInfo(
DPRINT("Got device description: %S\n", DeviceDesc->Buffer);
/* 2. Read informations in instance key, LogConf subkey */
RtlZeroMemory(QueryTable, sizeof(QueryTable));
wcscat(KeyName, L"\\LogConf");
Status = PnpRootReadRegistryBinary(
KeyName,
L"BasicConfigVector",
(PVOID*)&Device->ResourceRequirementsList);
DPRINT("PnpRootReadRegistryBinary() returned status 0x%08lx\n", Status);
if (!NT_SUCCESS(Status))
{
/* FIXME: */
}
return STATUS_SUCCESS;
}
@ -785,7 +890,7 @@ PnpRootQueryBusRelations(
}
DPRINT("ResourceRequirementsList: %p PDO %p\n",
&PdoDeviceExtension->ResourceRequirementsList,
PdoDeviceExtension->ResourceRequirementsList,
Device->Pdo);
}