windows-nt/Source/XPSP1/NT/multimedia/media/drivers/drvlib/inc/registry.h

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2020-09-26 03:20:57 -05:00
/****************************************************************************
*
* registry.h
*
* Copyright (c) 1992-1994 Microsoft Corporation
*
* This file contains public definitions for maintaining registry information
* for drivers managing kernel driver registry related data.
****************************************************************************/
/****************************************************************************
Our registry access data
****************************************************************************/
typedef struct {
SC_HANDLE ServiceManagerHandle; // Handle to the service controller
LPTSTR DriverName; // Name of driver
TCHAR TempKeySaveFileName[MAX_PATH]; // Where parameters key is saved
} REG_ACCESS, *PREG_ACCESS;
/****************************************************************************
Test if configuration etc can be supported
****************************************************************************/
#define DrvAccess(RegAccess) ((RegAccess)->ServiceManagerHandle != NULL)
/****************************************************************************
Driver types
****************************************************************************/
typedef enum {
SoundDriverTypeNormal = 1,
SoundDriverTypeSynth /* Go in the synth group */
} SOUND_KERNEL_MODE_DRIVER_TYPE;
/****************************************************************************
Function prototypes
****************************************************************************/
/*
* Create a new key
*/
HKEY DrvCreateDeviceKey(LPCTSTR DriverName);
/*
* Open a subkey under our driver's node
*/
HKEY DrvOpenRegKey(LPCTSTR DriverName,
LPCTSTR Path);
/*
* Create a services node for our driver if there isn't one already,
* otherwise open the existing one. Returns ERROR_SUCCESS if OK.
*/
BOOL
DrvCreateServicesNode(PTCHAR DriverName,
SOUND_KERNEL_MODE_DRIVER_TYPE DriverType,
PREG_ACCESS RegAccess,
BOOL Create);
/*
* Close down our connection to the services manager
*/
VOID
DrvCloseServiceManager(
PREG_ACCESS RegAccess);
/*
* Delete the services node for our driver
*/
BOOL
DrvDeleteServicesNode(
PREG_ACCESS RegAccess);
/*
* Save the parameters subkey
*/
BOOL DrvSaveParametersKey(PREG_ACCESS RegAccess);
/*
* Restore the parameters subkey
*/
BOOL DrvRestoreParametersKey(PREG_ACCESS RegAccess);
/*
* Create the 'Parameters' subkey
*/
LONG
DrvCreateParamsKey(
PREG_ACCESS RegAccess);
/*
* Open the key to a numbered device (starts at 0)
*/
HKEY DrvOpenDeviceKey(LPCTSTR DriverName, UINT n);
/*
* Set a device parameter
*/
#define DrvSetDeviceParameter(a, b, c) \
DrvSetDeviceIdParameter(a, 0, b, c)
LONG
DrvSetDeviceIdParameter(
PREG_ACCESS RegAccess,
UINT DeviceNumber,
PTCHAR ValueName,
DWORD Value);
/*
* Read current parameter setting
*/
#define DrvQueryDeviceParameter(a, b, c) \
DrvQueryDeviceIdParameter(a, 0, b, c)
LONG
DrvQueryDeviceIdParameter(
PREG_ACCESS RegAccess,
UINT DeviceNumber,
PTCHAR ValueName,
PDWORD pValue);
/*
* Try loading a kernel driver
*/
BOOL
DrvLoadKernelDriver(
PREG_ACCESS RegAccess);
/*
* Try unloading a kernel driver
*/
BOOL
DrvUnloadKernelDriver(
PREG_ACCESS RegAccess);
/*
* See if driver is loaded
*/
BOOL
DrvIsDriverLoaded(
PREG_ACCESS RegAccess);
/*
* Do driver (installation+) configuration
*/
BOOL DrvConfigureDriver(
PREG_ACCESS RegAccess,
LPTSTR DriverName,
SOUND_KERNEL_MODE_DRIVER_TYPE
DriverType,
BOOL (* SetParms )(PVOID),
PVOID Context);
/*
* Remove a driver
*/
LRESULT DrvRemoveDriver(
PREG_ACCESS RegAccess);
/*
* Number of card instances installed for a given driver
*/
LONG
DrvNumberOfDevices(
PREG_ACCESS RegAccess,
LPDWORD NumberOfDevices);
/*
* Set the midi mapper setup to use
*/
VOID DrvSetMapperName(LPTSTR SetupName);
/*
* Find which interrupts and DMA Channels are free
*/
BOOL GetInterruptsAndDMA(
LPDWORD InterruptsInUse,
LPDWORD DmaChannelsInUse,
LPCTSTR IgnoreDriver
);