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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
PURPOSE.
Module Name:
AudioModule.h
Abstract:
Contains audio modules definitions and function prototypes private to
the driver.
Environment:
Kernel mode
--*/
#ifndef _AUDIOMODULE_H_
#define _AUDIOMODULE_H_
/* make prototypes usable from C++ */
#ifdef __cplusplus
extern "C" {
#endif
// Audio module definitions
//
// Audio module instance defintion.
// This sample driver generates an instance id by combinding the
// configuration set # for a class module id with the instance of that
// configuration. Real driver should use a more robust scheme, such as
// an indirect mapping from/to an instance id to/from a configuration set
// + location in the pipeline + any other info the driver needs.
//
// top 8 bits reserved for use by aggregation
// next 12 bits are the config id mask
// bottom 12 bits instance id
#define AUDIOMODULE_CLASS_CFG_ID_MASK 0xFFF
#define AUDIOMODULE_CLASS_CFG_INSTANCE_ID_MASK 0xFFF
#define AUDIOMODULE_INSTANCE_ID(ClassCfgId, ClassCfgInstanceId) \
((ULONG(ClassCfgId & AUDIOMODULE_CLASS_CFG_ID_MASK) << 12) | \
(ULONG(ClassCfgInstanceId & AUDIOMODULE_CLASS_CFG_INSTANCE_ID_MASK)))
#define AUDIOMODULE_GET_CLASSCFGID(InstanceId) \
(ULONG(InstanceId) >> 12 & AUDIOMODULE_CLASS_CFG_ID_MASK)
enum AudioModule_Parameter {
AudioModuleParameter1 = 0,
AudioModuleParameter2,
AudioModuleParameter3
};
typedef struct _AUDIOMODULE_CUSTOM_COMMAND {
ULONG Verb; // get, set and support
AudioModule_Parameter ParameterId;
} AUDIOMODULE_CUSTOM_COMMAND, *PAUDIOMODULE_CUSTOM_COMMAND;
enum AudioModule_Notification_Type {
AudioModuleParameterChanged = 0,
};
typedef struct _AUDIOMODULE_CUSTOM_NOTIFICATION {
ULONG Type;
union {
struct {
ULONG ParameterId;
} ParameterChanged;
};
} AUDIOMODULE_CUSTOM_NOTIFICATION, *PAUDIOMODULE_CUSTOM_NOTIFICATION;
#define AUDIOMODULE_PARAMETER_FLAG_CHANGE_NOTIFICATION 0x00000001
typedef struct _DSP_AUDIOMODULE0_CONTEXT {
ACXPNPEVENT Event;
ULONG Parameter1;
BYTE Parameter2;
ULONG InstanceId;
} DSP_AUDIOMODULE0_CONTEXT, *PDSP_AUDIOMODULE0_CONTEXT;
typedef struct _DSP_AUDIOMODULE1_CONTEXT {
ACXPNPEVENT Event;
BYTE Parameter1;
ULONGLONG Parameter2;
DWORD Parameter3;
ULONG InstanceId;
} DSP_AUDIOMODULE1_CONTEXT, *PDSP_AUDIOMODULE1_CONTEXT;
typedef struct _DSP_AUDIOMODULE2_CONTEXT {
ACXPNPEVENT Event;
ULONG Parameter1;
USHORT Parameter2;
ULONG InstanceId;
} DSP_AUDIOMODULE2_CONTEXT, *PDSP_AUDIOMODULE2_CONTEXT;
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(DSP_AUDIOMODULE0_CONTEXT, GetDspAudioModule0Context);
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(DSP_AUDIOMODULE1_CONTEXT, GetDspAudioModule1Context);
WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(DSP_AUDIOMODULE2_CONTEXT, GetDspAudioModule2Context);
typedef struct _AUDIOMODULE_PARAMETER_INFO
{
USHORT AccessFlags; // get/set/basic-support attributes.
USHORT Flags;
ULONG Size;
DWORD VtType;
PVOID ValidSet;
ULONG ValidSetCount;
} AUDIOMODULE_PARAMETER_INFO, *PAUDIOMODULE_PARAMETER_INFO;
//
// Module 0 definitions
//
#define AUDIOMODULE0DESCRIPTION L"Generic system module"
#define AUDIOMODULE0_MAJOR 0x1
#define AUDIOMODULE0_MINOR 0X0
// {BD7CDC7F-F52E-4A95-B026-586926056128}
static const GUID AudioModule0Id =
{ 0xbd7cdc7f, 0xf52e, 0x4a95, { 0xb0, 0x26, 0x58, 0x69, 0x26, 0x5, 0x61, 0x28 } };
EVT_ACX_AUDIOMODULE_PROCESSCOMMAND DspR_EvtProcessCommand0;
static
ULONG AudioModule0_ValidParameterList[] =
{
1, 2, 5
};
extern AUDIOMODULE_PARAMETER_INFO AudioModule0_ParameterInfo[2];
//
// Module 1 definitions
//
static
BYTE AudioModule1_ValidParameterList[] =
{
0, 1, 2
};
extern AUDIOMODULE_PARAMETER_INFO AudioModule1_ParameterInfo[3];
#define AUDIOMODULE1DESCRIPTION L"Module 1"
#define AUDIOMODULE1_MAJOR 0x2
#define AUDIOMODULE1_MINOR 0X1
// {2803D255-6175-40A4-A572-ECF9FF6F07A9}
static const GUID AudioModule1Id =
{ 0x2803d255, 0x6175, 0x40a4, { 0xa5, 0x72, 0xec, 0xf9, 0xff, 0x6f, 0x7, 0xa9 } };
EVT_ACX_AUDIOMODULE_PROCESSCOMMAND DspR_EvtProcessCommand1;
//
// Module 2 definitions
//
static
ULONG AudioModule2_ValidParameterList[] =
{
1, 0xfffffffe
};
extern AUDIOMODULE_PARAMETER_INFO AudioModule2_ParameterInfo[2];
#define AUDIOMODULE2DESCRIPTION L"Module 2"
#define AUDIOMODULE2_MAJOR 0x2
#define AUDIOMODULE2_MINOR 0X0
// {2225578F-DF3B-40D8-BE80-031E1649DCC4}
static const GUID AudioModule2Id =
{ 0x2225578f, 0xdf3b, 0x40d8, { 0xbe, 0x80, 0x3, 0x1e, 0x16, 0x49, 0xdc, 0xc4 } };
EVT_ACX_AUDIOMODULE_PROCESSCOMMAND DspR_EvtProcessCommand2;
// General purpose helper functions
NTSTATUS
AudioModule_GenericHandler_BasicSupport(
_In_ PAUDIOMODULE_PARAMETER_INFO ParameterInfo,
_Out_writes_bytes_opt_(*BufferCb) PVOID Buffer,
_Inout_ ULONG * BufferCb
);
BOOLEAN
IsAudioModuleParameterValid(
_In_ PAUDIOMODULE_PARAMETER_INFO ParameterInfo,
_In_reads_bytes_opt_(BufferCb) PVOID Buffer,
_In_ ULONG BufferCb
);
NTSTATUS
AudioModule_GenericHandler(
_In_ ULONG Verb,
_In_ ULONG ParameterId,
_In_ PAUDIOMODULE_PARAMETER_INFO ParameterInfo,
_Inout_updates_bytes_(ParameterInfo->Size) PVOID CurrentValue,
_In_reads_bytes_opt_(InBufferCb) PVOID InBuffer,
_In_ ULONG InBufferCb,
_Out_writes_bytes_opt_(*OutBufferCb) PVOID OutBuffer,
_Inout_ ULONG * OutBufferCb,
_In_ BOOL * ParameterChanged
);
/* make internal prototypes usable from C++ */
#ifdef __cplusplus
}
#endif
#endif // _AUDIOMODULE_H_
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