533 lines
13 KiB
C++
533 lines
13 KiB
C++
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/*++
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Copyright (c) 1997-2000 Microsoft Corporation All Rights Reserved
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Module Name:
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adapter.cpp
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Abstract:
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Setup and miniport installation. No resources are used by msvad.
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--*/
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//
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// All the GUIDS for all the miniports end up in this object.
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//
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#define PUT_GUIDS_HERE
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#include <msvad.h>
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#include "common.h"
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//-----------------------------------------------------------------------------
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// Defines
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//-----------------------------------------------------------------------------
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// BUGBUG set this to number of miniports
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#define MAX_MINIPORTS 3 // Number of maximum miniports.
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//-----------------------------------------------------------------------------
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// Externals
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//-----------------------------------------------------------------------------
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NTSTATUS
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CreateMiniportWaveCyclicMSVAD
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(
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OUT PUNKNOWN *,
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IN REFCLSID,
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IN PUNKNOWN,
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IN POOL_TYPE
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);
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NTSTATUS
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CreateMiniportTopologyMSVAD
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(
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OUT PUNKNOWN *,
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IN REFCLSID,
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IN PUNKNOWN,
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IN POOL_TYPE
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);
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//-----------------------------------------------------------------------------
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// Referenced forward.
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//-----------------------------------------------------------------------------
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extern "C" NTSTATUS
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AddDevice
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(
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IN PDRIVER_OBJECT,
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IN PDEVICE_OBJECT
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);
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NTSTATUS
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StartDevice
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(
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IN PDEVICE_OBJECT,
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IN PIRP,
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IN PRESOURCELIST
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);
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//-----------------------------------------------------------------------------
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// Functions
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//-----------------------------------------------------------------------------
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//=============================================================================
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#pragma code_seg("INIT")
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extern "C" NTSTATUS
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DriverEntry
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(
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IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPathName
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)
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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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All audio adapter drivers can use this code without change.
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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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STATUS_SUCCESS if successful,
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STATUS_UNSUCCESSFUL otherwise.
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--*/
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PAGED_CODE();
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NTSTATUS ntStatus;
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DPF(D_TERSE, ("[DriverEntry]"));
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// Tell the class driver to initialize the driver.
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//
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ntStatus =
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PcInitializeAdapterDriver
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(
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DriverObject,
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RegistryPathName,
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AddDevice
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);
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return ntStatus;
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} // DriverEntry
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#pragma code_seg()
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#pragma code_seg("PAGE")
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//=============================================================================
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extern "C" NTSTATUS
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AddDevice
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(
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IN PDRIVER_OBJECT DriverObject,
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IN PDEVICE_OBJECT PhysicalDeviceObject
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)
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/*++
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Routine Description:
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The Plug & Play subsystem is handing us a brand new PDO, for which we
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(by means of INF registration) have been asked to provide a driver.
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We need to determine if we need to be in the driver stack for the device.
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Create a function device object to attach to the stack
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Initialize that device object
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Return status success.
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All audio adapter drivers can use this code without change.
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Set MAX_MINIPORTS depending on the number of miniports that the driver
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uses.
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Arguments:
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DriverObject - pointer to a driver object
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PhysicalDeviceObject - pointer to a device object created by the
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underlying bus driver.
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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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PAGED_CODE();
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NTSTATUS ntStatus;
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DPF(D_TERSE, ("[AddDevice]"));
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// Tell the class driver to add the device.
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//
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ntStatus =
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PcAddAdapterDevice
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(
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DriverObject,
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PhysicalDeviceObject,
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PCPFNSTARTDEVICE(StartDevice),
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MAX_MINIPORTS,
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0
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);
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return ntStatus;
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} // AddDevice
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//=============================================================================
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NTSTATUS
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InstallSubdevice
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(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PWCHAR Name,
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IN REFGUID PortClassId,
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IN REFGUID MiniportClassId,
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IN PFNCREATEINSTANCE MiniportCreate OPTIONAL,
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IN PUNKNOWN UnknownAdapter OPTIONAL,
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IN PRESOURCELIST ResourceList,
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IN REFGUID PortInterfaceId,
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OUT PUNKNOWN * OutPortInterface OPTIONAL,
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OUT PUNKNOWN * OutPortUnknown OPTIONAL
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)
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{
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/*++
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Routine Description:
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This function creates and registers a subdevice consisting of a port
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driver, a minport driver and a set of resources bound together. It will
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also optionally place a pointer to an interface on the port driver in a
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specified location before initializing the port driver. This is done so
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that a common ISR can have access to the port driver during
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initialization, when the ISR might fire.
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Arguments:
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DeviceObject - pointer to the driver object
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Irp - pointer to the irp object.
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Name - name of the miniport. Passes to PcRegisterSubDevice
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PortClassId - port class id. Passed to PcNewPort.
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MiniportClassId - miniport class id. Passed to PcNewMiniport.
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MiniportCreate - pointer to a miniport creation function. If NULL,
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PcNewMiniport is used.
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UnknownAdapter - pointer to the adapter object.
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Used for initializing the port.
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ResourceList - pointer to the resource list.
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PortInterfaceId - GUID that represents the port interface.
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OutPortInterface - pointer to store the port interface
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OutPortUnknown - pointer to store the unknown port interface.
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Return Value:
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NT status code.
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--*/
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PAGED_CODE();
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ASSERT(DeviceObject);
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ASSERT(Irp);
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ASSERT(Name);
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NTSTATUS ntStatus;
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PPORT port = NULL;
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PUNKNOWN miniport = NULL;
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DPF_ENTER(("[InstallSubDevice %s]", Name));
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// Create the port driver object
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//
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ntStatus = PcNewPort(&port, PortClassId);
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// Create the miniport object
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//
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if (NT_SUCCESS(ntStatus))
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{
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if (MiniportCreate)
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{
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ntStatus =
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MiniportCreate
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(
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&miniport,
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MiniportClassId,
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NULL,
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NonPagedPool
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);
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}
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else
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{
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ntStatus =
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PcNewMiniport
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(
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(PMINIPORT *) &miniport,
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MiniportClassId
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);
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}
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}
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// Init the port driver and miniport in one go.
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//
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if (NT_SUCCESS(ntStatus))
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{
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ntStatus =
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port->Init
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(
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DeviceObject,
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Irp,
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miniport,
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UnknownAdapter,
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ResourceList
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);
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if (NT_SUCCESS(ntStatus))
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{
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// Register the subdevice (port/miniport combination).
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//
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ntStatus =
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PcRegisterSubdevice
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(
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DeviceObject,
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Name,
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port
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);
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}
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// We don't need the miniport any more. Either the port has it,
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// or we've failed, and it should be deleted.
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//
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miniport->Release();
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}
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// Deposit the port interfaces if it's needed.
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//
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if (NT_SUCCESS(ntStatus))
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{
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if (OutPortUnknown)
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{
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ntStatus =
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port->QueryInterface
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(
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IID_IUnknown,
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(PVOID *)OutPortUnknown
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);
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}
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if (OutPortInterface)
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{
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ntStatus =
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port->QueryInterface
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(
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PortInterfaceId,
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(PVOID *) OutPortInterface
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);
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}
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}
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if (port)
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{
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port->Release();
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}
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return ntStatus;
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} // InstallSubDevice
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//=============================================================================
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NTSTATUS
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StartDevice
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(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp,
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IN PRESOURCELIST ResourceList
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)
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{
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/*++
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Routine Description:
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This function is called by the operating system when the device is
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started.
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It is responsible for starting the miniports. This code is specific to
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the adapter because it calls out miniports for functions that are specific
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to the adapter.
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Arguments:
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DeviceObject - pointer to the driver object
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Irp - pointer to the irp
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ResourceList - pointer to the resource list assigned by PnP manager
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Return Value:
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NT status code.
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--*/
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PAGED_CODE();
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ASSERT(DeviceObject);
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ASSERT(Irp);
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ASSERT(ResourceList);
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NTSTATUS ntStatus = STATUS_SUCCESS;
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PUNKNOWN unknownTopology = NULL;
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PUNKNOWN unknownWave = NULL;
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PADAPTERCOMMON pAdapterCommon = NULL;
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PUNKNOWN pUnknownCommon = NULL;
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DPF_ENTER(("[StartDevice]"));
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// create a new adapter common object
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//
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ntStatus =
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NewAdapterCommon
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(
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&pUnknownCommon,
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IID_IAdapterCommon,
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NULL,
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NonPagedPool
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);
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if (NT_SUCCESS(ntStatus))
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{
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ntStatus =
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pUnknownCommon->QueryInterface
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(
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IID_IAdapterCommon,
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(PVOID *) &pAdapterCommon
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);
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if (NT_SUCCESS(ntStatus))
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{
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ntStatus =
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pAdapterCommon->Init(DeviceObject);
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if (NT_SUCCESS(ntStatus))
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{
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// register with PortCls for power-management services
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//
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ntStatus =
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PcRegisterAdapterPowerManagement
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(
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PUNKNOWN(pAdapterCommon),
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DeviceObject
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);
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}
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}
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}
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// install MSVAD topology miniport.
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//
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if (NT_SUCCESS(ntStatus))
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{
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ntStatus =
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InstallSubdevice
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(
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DeviceObject,
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Irp,
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L"Topology",
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CLSID_PortTopology,
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|
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CLSID_PortTopology,
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CreateMiniportTopologyMSVAD,
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|
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pAdapterCommon,
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NULL,
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IID_IPortTopology,
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NULL,
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&unknownTopology
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);
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}
|
||
|
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// install MSVAD wavecyclic miniport.
|
||
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//
|
||
|
|
if (NT_SUCCESS(ntStatus))
|
||
|
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{
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||
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ntStatus =
|
||
|
|
InstallSubdevice
|
||
|
|
(
|
||
|
|
DeviceObject,
|
||
|
|
Irp,
|
||
|
|
L"Wave",
|
||
|
|
CLSID_PortWaveCyclic,
|
||
|
|
CLSID_PortWaveCyclic,
|
||
|
|
CreateMiniportWaveCyclicMSVAD,
|
||
|
|
pAdapterCommon,
|
||
|
|
NULL,
|
||
|
|
IID_IPortWaveCyclic,
|
||
|
|
pAdapterCommon->WavePortDriverDest(),
|
||
|
|
&unknownWave
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (unknownTopology && unknownWave)
|
||
|
|
{
|
||
|
|
// register wave <=> topology connections
|
||
|
|
// This will connect bridge pins of wavecyclic and topology
|
||
|
|
// miniports.
|
||
|
|
//
|
||
|
|
ntStatus =
|
||
|
|
PcRegisterPhysicalConnection
|
||
|
|
(
|
||
|
|
DeviceObject,
|
||
|
|
unknownTopology,
|
||
|
|
TopologyPhysicalConnections.ulTopologyOut,
|
||
|
|
unknownWave,
|
||
|
|
TopologyPhysicalConnections.ulWaveIn
|
||
|
|
);
|
||
|
|
|
||
|
|
if (NT_SUCCESS(ntStatus))
|
||
|
|
{
|
||
|
|
ntStatus =
|
||
|
|
PcRegisterPhysicalConnection
|
||
|
|
(
|
||
|
|
DeviceObject,
|
||
|
|
unknownWave,
|
||
|
|
TopologyPhysicalConnections.ulWaveOut,
|
||
|
|
unknownTopology,
|
||
|
|
TopologyPhysicalConnections.ulTopologyIn
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Release the adapter common object. It either has other references,
|
||
|
|
// or we need to delete it anyway.
|
||
|
|
//
|
||
|
|
if (pAdapterCommon)
|
||
|
|
{
|
||
|
|
pAdapterCommon->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pUnknownCommon)
|
||
|
|
{
|
||
|
|
pUnknownCommon->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (unknownTopology)
|
||
|
|
{
|
||
|
|
unknownTopology->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (unknownWave)
|
||
|
|
{
|
||
|
|
unknownWave->Release();
|
||
|
|
}
|
||
|
|
|
||
|
|
return ntStatus;
|
||
|
|
} // StartDevice
|
||
|
|
#pragma code_seg()
|