ReactOS 0.4.15-dev-5666-gc548b97
CAC97MiniportWaveRTStream Class Reference

#include <rtstream.h>

Inheritance diagram for CAC97MiniportWaveRTStream:
Collaboration diagram for CAC97MiniportWaveRTStream:

Public Member Functions

 DECLARE_STD_UNKNOWN ()
 
 DEFINE_STD_CONSTRUCTOR (CAC97MiniportWaveRTStream)
 
 ~CAC97MiniportWaveRTStream ()
 
NTSTATUS Init (IN CAC97MiniportWaveRT *Miniport_, IN PPORTWAVERTSTREAM PortStream, IN ULONG Channel, IN BOOLEAN Capture, IN PKSDATAFORMAT DataFormat)
 
- Public Member Functions inherited from CMiniportStream
 ~CMiniportStream ()
 
void ResetDMA (void)
 
void PauseDMA (void)
 
void ResumeDMA (ULONG state=DMA_ENGINE_ON)
 
int GetBuffPos (DWORD *buffPos)
 
void WriteReg8 (ULONG addr, UCHAR data)
 
void WriteReg16 (ULONG addr, USHORT data)
 
void WriteReg32 (ULONG addr, ULONG data)
 
UCHAR ReadReg8 (ULONG addr)
 
USHORT ReadReg16 (ULONG addr)
 
ULONG ReadReg32 (ULONG addr)
 
 STDMETHODIMP_ (NTSTATUS) SetFormat(_In_ PKSDATAFORMAT Format)
 
void PowerChangeNotify (IN POWER_STATE NewState)
 
virtual void PowerChangeNotify_ (IN POWER_STATE NewState)
 
ULONG GetCurrentSampleRate (void)
 
NTSTATUS Init (IN CMiniport *Miniport_, IN PUNKNOWN PortStream, IN WavePins Pin_, IN BOOLEAN Capture_, IN PKSDATAFORMAT DataFormat_, OUT PSERVICEGROUP *ServiceGroup_)
 
virtual void InterruptServiceRoutine () PURE
 
virtual NTSTATUS Init_ () PURE
 
NTSTATUS NonDelegatingQueryInterface (_In_ REFIID Interface, _COM_Outptr_ PVOID *Object, _In_ REFIID iStream, _In_ PUNKNOWN stream)
 
NTSTATUS SetState (_In_ KSSTATE State)
 
NTSTATUS NormalizePhysicalPosition (_Inout_ PLONGLONG PhysicalPosition)
 
PVOID BDList_Alloc ()
 
void BDList_Free ()
 
void UpdateLviCyclic ()
 

Public Attributes

 IMP_IMiniportWaveRTStream
 
- Public Attributes inherited from CUnknown
union {
   IUnknown   IUnknown
 
   INonDelegatingUnknown   INonDelegatingUnknown
 
}; 
 
LONG m_ref_count
 
PUNKNOWN m_outer_unknown
 
- Public Attributes inherited from CMiniportStream
CMiniportMiniport
 
WavePins Pin
 
BOOL Capture
 
WORD NumberOfChannels
 
DEVICE_POWER_STATE m_PowerState
 
PPORTSTREAM_ PortStream
 
PKSDATAFORMAT_WAVEFORMATEX DataFormat
 
PSERVICEGROUP ServiceGroup
 
ULONG CurrentRate
 
ULONG DMAEngineState
 
ULONG m_ulBDAddr
 
PHYSICAL_ADDRESS BDList_PhysAddr
 
tBDEntryBDList
 
 IMP_IDrmAudioStream
 

Private Attributes

DEVICE_POWER_STATE m_PowerState
 
int mapEntries
 
tBDEntryBDList
 
PMDL BDListMdl
 

Friends

NTSTATUS CAC97MiniportWaveRT::InterruptServiceRoutine (IN PINTERRUPTSYNC InterruptSync, IN PVOID StaticContext)
 

Detailed Description

Definition at line 41 of file rtstream.h.

Constructor & Destructor Documentation

◆ ~CAC97MiniportWaveRTStream()

CAC97MiniportWaveRTStream::~CAC97MiniportWaveRTStream ( )

Definition at line 66 of file rtstream.cpp.

67{
68 PAGED_CODE ();
69
70
71 DOUT (DBG_PRINT, ("[CAC97MiniportWaveRTStream::~CAC97MiniportWaveRTStream]"));
72
73 //
74 // Delete the scatter gather list since it's not needed anymore
75 //
76 if (BDListMdl && BDList)
77 {
78 PortStream->UnmapAllocatedPages (BDList, BDListMdl);
79 PortStream->FreePagesFromMdl (BDListMdl);
81 BDList = NULL;
82 }
83 if (BDList)
84 {
86 }
87
88 //
89 // Release the port stream.
90 //
91 if (PortStream)
92 {
93 PortStream->Release ();
95 }
96}
#define PAGED_CODE()
PPORTSTREAM_ PortStream
Definition: stream.h:48
#define NULL
Definition: types.h:112
#define DOUT(lvl, strings)
Definition: debug.h:82
#define ExFreePool(addr)
Definition: env_spec_w32.h:352
#define DBG_PRINT(ppi, ch, level)
Definition: win32kdebug.h:168

Member Function Documentation

◆ DECLARE_STD_UNKNOWN()

CAC97MiniportWaveRTStream::DECLARE_STD_UNKNOWN ( )

◆ DEFINE_STD_CONSTRUCTOR()

CAC97MiniportWaveRTStream::DEFINE_STD_CONSTRUCTOR ( CAC97MiniportWaveRTStream  )

◆ Init()

NTSTATUS CAC97MiniportWaveRTStream::Init ( IN CAC97MiniportWaveRT Miniport_,
IN PPORTWAVERTSTREAM  PortStream,
IN ULONG  Channel,
IN BOOLEAN  Capture,
IN PKSDATAFORMAT  DataFormat 
)

Definition at line 105 of file rtstream.cpp.

113{
114 PAGED_CODE ();
115
116 DOUT (DBG_PRINT, ("[CAC97MiniportWaveRTStream::Init]"));
117
118 ASSERT (Miniport_);
119 ASSERT (PortStream_);
120 ASSERT (DataFormat_);
121
122 //
123 // The rule here is that we return when we fail without a cleanup.
124 // The destructor will relase the allocated memory.
125 //
126
127 //
128 // Allocate memory for the BDL.
129 // First try the least expensive way, which is to allocate it from the pool.
130 // If that fails (it's outside of the controller's address range which can
131 // happen on 64bit machines or PAE) then use portcls's AllocatePagesForMdl.
132 //
134 MAX_BDL_ENTRIES * sizeof (tBDEntry), PoolTag);
135 if (!BDList)
136 {
137 DOUT (DBG_ERROR, ("Failed to allocate the BD list!"));
139 }
140
141 //
142 // Check to see if our HW can access it.
143 // If the HW cannot see the memory, free it and use AllocatePagesForMdl
144 // which allocates always complete pages, so we have to waste some memory.
145 //
146 if (MmGetPhysicalAddress (BDList).HighPart != 0)
147 {
148 PHYSICAL_ADDRESS high;
149
150 high.HighPart = 0;
151 high.LowPart = MAXULONG;
153 BDListMdl = PortStream->AllocatePagesForMdl (high, PAGE_SIZE);
154 if (!BDListMdl)
155 {
156 DOUT (DBG_ERROR, ("Failed to allocate page for BD list!"));
158 }
159 BDList = (tBDEntry *)PortStream->MapAllocatedPages (BDListMdl, MmCached);
160 if (!BDList)
161 {
162 PortStream->FreePagesFromMdl (BDListMdl);
163 BDListMdl = NULL;
164 DOUT (DBG_ERROR, ("Failed to map the page for the BD list!"));
166 }
167 }
168
169
170 return CMiniportStream::Init(Miniport_,
171 Channel_,
172 Capture_,
173 DataFormat_,
174 NULL);
175}
NTSTATUS Init(IN CMiniport *Miniport_, IN PUNKNOWN PortStream, IN WavePins Pin_, IN BOOLEAN Capture_, IN PKSDATAFORMAT DataFormat_, OUT PSERVICEGROUP *ServiceGroup_)
Definition: stream.cpp:65
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
#define PAGE_SIZE
Definition: env_spec_w32.h:49
#define NonPagedPool
Definition: env_spec_w32.h:307
#define ASSERT(a)
Definition: mode.c:44
#define DBG_ERROR
Definition: nfs41_debug.h:78
PHYSICAL_ADDRESS NTAPI MmGetPhysicalAddress(IN PVOID Address)
Definition: stubs.c:685
const int MAX_BDL_ENTRIES
Definition: rtstream.h:24
#define MAXULONG
Definition: typedefs.h:251
#define STATUS_INSUFFICIENT_RESOURCES
Definition: udferr_usr.h:158
ULONG LowPart
Definition: typedefs.h:106
_Must_inspect_result_ _In_opt_ PWDF_OBJECT_ATTRIBUTES _In_ _Strict_type_match_ POOL_TYPE _In_opt_ ULONG PoolTag
Definition: wdfmemory.h:164
@ MmCached
Definition: mmtypes.h:130

Friends And Related Function Documentation

◆ CAC97MiniportWaveRT::InterruptServiceRoutine

NTSTATUS CAC97MiniportWaveRT::InterruptServiceRoutine ( IN PINTERRUPTSYNC  InterruptSync,
IN PVOID  StaticContext 
)
friend

Member Data Documentation

◆ BDList

tBDEntry* CAC97MiniportWaveRTStream::BDList
private

Definition at line 53 of file rtstream.h.

Referenced by Init(), STDMETHODIMP_(), and ~CAC97MiniportWaveRTStream().

◆ BDListMdl

PMDL CAC97MiniportWaveRTStream::BDListMdl
private

Definition at line 54 of file rtstream.h.

Referenced by Init(), and ~CAC97MiniportWaveRTStream().

◆ IMP_IMiniportWaveRTStream

CAC97MiniportWaveRTStream::IMP_IMiniportWaveRTStream

Definition at line 84 of file rtstream.h.

◆ m_PowerState

DEVICE_POWER_STATE CAC97MiniportWaveRTStream::m_PowerState
private

Definition at line 49 of file rtstream.h.

◆ mapEntries

int CAC97MiniportWaveRTStream::mapEntries
private

Definition at line 52 of file rtstream.h.


The documentation for this class was generated from the following files: