376 lines
8.8 KiB
C
376 lines
8.8 KiB
C
/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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USBD.C
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Abstract:
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Environment:
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kernel mode only
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Notes:
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Revision History:
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09-29-95 : created
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07-19-96 : removed device object
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--*/
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#include <wdm.h>
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#include "stdarg.h"
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#include "stdio.h"
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#include "usbdi.h" //public data structures
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#include "hcdi.h"
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#include "usbd.h" //private data strutures
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NTSTATUS
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DriverEntry(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath
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)
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/*++
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Routine Description:
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Installable driver initialization entry point.
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This entry point is called directly by the I/O system.
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Arguments:
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DriverObject - pointer to the driver object
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RegistryPath - pointer to a unicode string representing the path
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to driver-specific key in the registry
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Return Value:
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NT status code
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--*/
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{
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// This function is never called
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return STATUS_SUCCESS;
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}
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#ifdef PAGE_CODE
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, USBD_GetRegistryKeyValue)
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#endif
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#endif
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NTSTATUS
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USBD_GetRegistryKeyValue (
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IN HANDLE Handle,
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IN PWCHAR KeyNameString,
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IN ULONG KeyNameStringLength,
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IN PVOID Data,
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IN ULONG DataLength
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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NTSTATUS ntStatus = STATUS_INSUFFICIENT_RESOURCES;
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UNICODE_STRING keyName;
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ULONG length;
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PKEY_VALUE_FULL_INFORMATION fullInfo;
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PAGED_CODE();
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RtlInitUnicodeString(&keyName, KeyNameString);
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length = sizeof(KEY_VALUE_FULL_INFORMATION) +
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KeyNameStringLength + DataLength;
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fullInfo = ExAllocatePoolWithTag(PagedPool, length, USBD_TAG);
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USBD_KdPrint(3, ("' USBD_GetRegistryKeyValue buffer = 0x%x\n", fullInfo));
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if (fullInfo) {
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ntStatus = ZwQueryValueKey(Handle,
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&keyName,
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KeyValueFullInformation,
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fullInfo,
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length,
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&length);
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if (NT_SUCCESS(ntStatus)){
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USBD_ASSERT(DataLength == fullInfo->DataLength);
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RtlCopyMemory(Data, ((PUCHAR) fullInfo) + fullInfo->DataOffset, DataLength);
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}
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ExFreePool(fullInfo);
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}
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return ntStatus;
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}
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#ifdef USBD_DRIVER // USBPORT supercedes most of USBD, so we will remove
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// the obsolete code by compiling it only if
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// USBD_DRIVER is set.
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#ifdef PAGE_CODE
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, USBD_GetPdoRegistryParameters)
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#pragma alloc_text(PAGE, USBD_GetGlobalRegistryParameters)
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#endif
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#endif
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// global flag to force double buffering
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// bulk - ins
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UCHAR ForceDoubleBuffer = 0;
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// global flag to force fast iso
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// iso - outs
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UCHAR ForceFastIso = 0;
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NTSTATUS
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USBD_GetConfigValue(
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IN PWSTR ValueName,
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IN ULONG ValueType,
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IN PVOID ValueData,
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IN ULONG ValueLength,
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IN PVOID Context,
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IN PVOID EntryContext
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)
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/*++
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Routine Description:
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This routine is a callback routine for RtlQueryRegistryValues
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It is called for each entry in the Parameters
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node to set the config values. The table is set up
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so that this function will be called with correct default
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values for keys that are not present.
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Arguments:
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ValueName - The name of the value (ignored).
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ValueType - The type of the value
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ValueData - The data for the value.
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ValueLength - The length of ValueData.
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Context - A pointer to the CONFIG structure.
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EntryContext - The index in Config->Parameters to save the value.
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Return Value:
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--*/
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{
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NTSTATUS ntStatus = STATUS_SUCCESS;
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USBD_KdPrint(2, ("'Type 0x%x, Length 0x%x\n", ValueType, ValueLength));
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switch (ValueType) {
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case REG_DWORD:
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*(PVOID*)EntryContext = *(PVOID*)ValueData;
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break;
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case REG_BINARY:
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// we are only set up to read a byte
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RtlCopyMemory(EntryContext, ValueData, 1);
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break;
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default:
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ntStatus = STATUS_INVALID_PARAMETER;
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}
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return ntStatus;
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}
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NTSTATUS
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USBD_GetGlobalRegistryParameters(
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IN PDEVICE_OBJECT PhysicalDeviceObject,
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IN OUT PULONG ComplienceFlags,
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IN OUT PULONG DiagnosticFlags,
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IN OUT PULONG DeviceHackFlags
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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NTSTATUS ntStatus;
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UCHAR toshibaLegacyFlags = 0;
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RTL_QUERY_REGISTRY_TABLE QueryTable[4];
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PWCHAR usb = L"usb";
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PAGED_CODE();
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//
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// Set up QueryTable to do the following:
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//
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// legacy flag
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QueryTable[0].QueryRoutine = USBD_GetConfigValue;
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QueryTable[0].Flags = 0;
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QueryTable[0].Name = LEGACY_TOSHIBA_USB_KEY;
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QueryTable[0].EntryContext = &toshibaLegacyFlags;
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QueryTable[0].DefaultType = REG_BINARY;
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QueryTable[0].DefaultData = &toshibaLegacyFlags;
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QueryTable[0].DefaultLength = sizeof(toshibaLegacyFlags);
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// double buffer flag
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// this turns on the double buffer flag for all
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// bulk - INs for testing purposes
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QueryTable[1].QueryRoutine = USBD_GetConfigValue;
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QueryTable[1].Flags = 0;
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QueryTable[1].Name = L"ForceDoubleBuffer";
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QueryTable[1].EntryContext = &ForceDoubleBuffer;
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QueryTable[1].DefaultType = REG_BINARY;
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QueryTable[1].DefaultData = &ForceDoubleBuffer;
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QueryTable[1].DefaultLength = sizeof(ForceDoubleBuffer);
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// fast iso flag
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// this turns on the double buffer flag for all
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// iso - OUTs for testing purposes
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QueryTable[2].QueryRoutine = USBD_GetConfigValue;
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QueryTable[2].Flags = 0;
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QueryTable[2].Name = L"ForceFastIso";
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QueryTable[2].EntryContext = &ForceFastIso;
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QueryTable[2].DefaultType = REG_BINARY;
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QueryTable[2].DefaultData = &ForceFastIso;
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QueryTable[2].DefaultLength = sizeof(ForceFastIso);
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//
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// Stop
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//
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QueryTable[3].QueryRoutine = NULL;
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QueryTable[3].Flags = 0;
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QueryTable[3].Name = NULL;
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ntStatus = RtlQueryRegistryValues(
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// RTL_REGISTRY_ABSOLUTE, // RelativeTo
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RTL_REGISTRY_SERVICES,
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// UnicodeRegistryPath->Buffer, // Path
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usb,
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QueryTable, // QurryTable
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NULL, // Context
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NULL); // Environment
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USBD_KdPrint(1, ("<Global Parameters>\n"));
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if (NT_SUCCESS(ntStatus)) {
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USBD_KdPrint(1, ("LegacyToshibaUSB = 0x%x\n",
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toshibaLegacyFlags));
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if (toshibaLegacyFlags) {
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*ComplienceFlags |= 1;
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}
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USBD_KdPrint(1, ("ForceDoubleBuffer = 0x%x\n",
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ForceDoubleBuffer));
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USBD_KdPrint(1, ("ForceFastIso = 0x%x\n",
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ForceFastIso));
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}
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if ( STATUS_OBJECT_NAME_NOT_FOUND == ntStatus ) {
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ntStatus = STATUS_SUCCESS;
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}
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return ntStatus;
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}
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NTSTATUS
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USBD_GetPdoRegistryParameters (
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IN PDEVICE_OBJECT PhysicalDeviceObject,
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IN OUT PULONG ComplienceFlags,
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IN OUT PULONG DiagnosticFlags,
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IN OUT PULONG DeviceHackFlags
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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--*/
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{
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NTSTATUS ntStatus;
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HANDLE handle;
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WCHAR supportNonCompKey[] = SUPPORT_NON_COMP_KEY;
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WCHAR diagnosticModeKey[] = DAIGNOSTIC_MODE_KEY;
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WCHAR deviceHackKey[] = DEVICE_HACK_KEY;
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PAGED_CODE();
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ntStatus=IoOpenDeviceRegistryKey(PhysicalDeviceObject,
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PLUGPLAY_REGKEY_DRIVER,
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STANDARD_RIGHTS_ALL,
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&handle);
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if (NT_SUCCESS(ntStatus)) {
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/*
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RtlInitUnicodeString(&keyName, L"DeviceFoo");
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ZwSetValueKey(handle,
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&keyName,
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0,
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REG_DWORD,
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ComplienceFlags,
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sizeof(*ComplienceFlags));
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*/
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USBD_GetRegistryKeyValue(handle,
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supportNonCompKey,
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sizeof(supportNonCompKey),
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ComplienceFlags,
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sizeof(*ComplienceFlags));
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USBD_GetRegistryKeyValue(handle,
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diagnosticModeKey,
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sizeof(diagnosticModeKey),
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DiagnosticFlags,
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sizeof(*DiagnosticFlags));
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USBD_GetRegistryKeyValue(handle,
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deviceHackKey,
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sizeof(deviceHackKey),
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DeviceHackFlags,
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sizeof(*DeviceHackFlags));
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ZwClose(handle);
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}
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USBD_KdPrint(3, ("' RtlQueryRegistryValues status 0x%x, comp %x diag %x\n",
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ntStatus, *ComplienceFlags, *DiagnosticFlags));
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return ntStatus;
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}
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#endif // USBD_DRIVER
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