369 lines
14 KiB
C
369 lines
14 KiB
C
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//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1992 - 1998 Microsoft Corporation. All Rights Reserved.
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//
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//==========================================================================;
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#ifndef __CODMAIN_H__
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#define __CODMAIN_H__
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include "ccdecode.h"
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#include "defaults.h"
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#define ENTRIES(a) (sizeof(a)/sizeof(*(a)))
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/**************************************************************/
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/* Driver Name - Change this to reflect your executable name! */
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/**************************************************************/
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#define CODECNAME "CCDecode"
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// ------------------------------------------------------------------------
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// The master list of all streams supported by this driver
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// ------------------------------------------------------------------------
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typedef enum {
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STREAM_VBI = 0, // VBI samples in
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STREAM_CC, // Decoded VBI out (Should be less "generic")
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#ifdef CCINPUTPIN
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STREAM_CCINPUT, // H/W decoded CC in
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#endif // CCINPUTPIN
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MAX_STREAM_COUNT
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};
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// The MAX_STREAM_COUNT value must be equal to DRIVER_STREAM_COUNT
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// This particular value must be defined here to avoid circular references
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// We manage multiple instances of each pin up to this limit
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#define MAX_PIN_INSTANCES 8
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#define BIT(n) (((unsigned long)1)<<(n))
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#define BITSIZE(v) (sizeof(v)*8)
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#define SETBIT(array,n) (array[(n)/BITSIZE(*array)] |= BIT((n)%BITSIZE(*array)))
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#define CLEARBIT(array,n) (array[(n)/BITSIZE(*array)] &= ~BIT((n)%BITSIZE(*array)))
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#define TESTBIT(array,n) (BIT((n)%BITSIZE(*array)) == (array[(n)/BITSIZE(*array)] & BIT(n%BITSIZE(*array))))
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/*****************************************************************************
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*
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* The following structures are samples of information that could be used in
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* a device extension structure
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*
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*****************************************************************************/
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//
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// Result of DSP operation
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//
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typedef struct _DSPRESULT
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{
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CHAR Decoded[2];
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int Confidence;
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}DSPRESULT, *PDSPRESULT;
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//
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// definition of the full HW device extension structure This is the structure
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// that will be allocated in HW_INITIALIZATION by the stream class driver
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// Any information that is used in processing a device request (as opposed to
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// a STREAM based request) should be in this structure. A pointer to this
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// structure will be passed in all requests to the minidriver. (See
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// HW_STREAM_REQUEST_BLOCK in STRMINI.H)
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//
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typedef struct _HW_DEVICE_EXTENSION {
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struct _STREAMEX * pStrmEx[MAX_STREAM_COUNT][MAX_PIN_INSTANCES]; // Pointers to each stream
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UINT ActualInstances[MAX_STREAM_COUNT]; // Counter of instances per stream
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// Clock
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REFERENCE_TIME QST_Start; // KeQuerySystemTime at run
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REFERENCE_TIME QST_Now; // KeQuerySystemTime currently
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REFERENCE_TIME WallTime100ns; // elapsed time based on KeQueryPerformanceCounter
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// The following VBICODECFILTERING_* fields are defaults for newly created output pins(copied)
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VBICODECFILTERING_SCANLINES ScanlinesRequested; // Bitmask of requested scanlines
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VBICODECFILTERING_SCANLINES ScanlinesDiscovered;// Bitmask of discovered scanlines
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VBICODECFILTERING_CC_SUBSTREAMS SubstreamsRequested;// Bitmask of requested substream IDs
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VBICODECFILTERING_CC_SUBSTREAMS SubstreamsDiscovered;// Bitmask of discovered substream IDs
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// This is the global version of the STATISTICS property
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VBICODECFILTERING_STATISTICS_CC Statistics;
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PDSPRESULT DSPResult; // Pointer to result array
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ULONG DSPResultStartLine;
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ULONG DSPResultEndLine;
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ULONG SubStreamState[CC_MAX_HW_DECODE_LINES][2];
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ALL_STREAM_INFO * Streams;
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ULONG fTunerChange; // TV Tuner channel change in progress
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LIST_ENTRY AdapterSRBQueue;
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KSPIN_LOCK AdapterSRBSpinLock;
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BOOL bAdapterQueueInitialized;
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#ifdef CCINPUTPIN
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// Last pictureNumber that decoded VBI data was processed
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// (used for coordination of multiple input pins)
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FAST_MUTEX LastPictureMutex;
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LONGLONG LastPictureNumber;
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#endif // CCINPUTPIN
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} HW_DEVICE_EXTENSION, *PHW_DEVICE_EXTENSION;
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//
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// this structure is our per stream extension structure. This stores
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// information that is relevant on a per stream basis. Whenever a new stream
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// is opened, the stream class driver will allocate whatever extension size
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// is specified in the HwInitData.PerStreamExtensionSize.
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//
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typedef struct _STREAMEX
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{
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PHW_DEVICE_EXTENSION pHwDevExt; // For timer use
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PHW_STREAM_OBJECT pStreamObject; // For timer use
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KS_VBI_FRAME_INFO FrameInfo; // PictureNumber, etc.
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ULONG fDiscontinuity; // Discontinuity since last valid
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ULONG StreamInstance; // 0..NumberOfPossibleInstances-1
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LONGLONG LastPictureNumber; // Last received picture number
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KSSTATE KSState; // Run, Stop, Pause
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REFERENCE_TIME FrameTime100ns; // elapsed time based on frames captured
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HANDLE hMasterClock;
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HANDLE hClock;
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KSDATAFORMAT OpenedFormat; // Based on the actual open request.
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KSDATAFORMAT MatchedFormat; // Format that matched the open format.
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VBICODECFILTERING_SCANLINES ScanlinesRequested; // Bitmask of requested scanlines
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VBICODECFILTERING_SCANLINES ScanlinesDiscovered; // Bitmask of discovered scanlines
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VBICODECFILTERING_SCANLINES LastOddScanlinesDiscovered; // Bitmask of scanlines last discovered
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VBICODECFILTERING_SCANLINES LastEvenScanlinesDiscovered; // Bitmask of scanlines last discovered
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VBICODECFILTERING_CC_SUBSTREAMS SubstreamsRequested; // Bitmask of requested substream IDs
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VBICODECFILTERING_CC_SUBSTREAMS SubstreamsDiscovered; // Bitmask of discovered substream IDs
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VBICODECFILTERING_STATISTICS_CC_PIN PinStats; // CC Pin version of statistics property
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CCState State; // State variable for DSP
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KS_VBIINFOHEADER CurrentVBIInfoHeader;
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KSPIN_LOCK StreamControlSpinLock, // Command queue spin lock
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StreamDataSpinLock; // Data queue spin lock
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LIST_ENTRY StreamDataQueue, // Stream data queue
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StreamControlQueue; // Stream command queue
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#ifdef CCINPUTPIN
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// For when the VBI input pin is waiting for the HWCC input pin to catch up
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PHW_STREAM_REQUEST_BLOCK pVBISrbOnHold;
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KSPIN_LOCK VBIOnHoldSpinLock;
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#endif // CCINPUTPIN
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} STREAMEX, *PSTREAMEX;
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//
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// This structure is our per SRB extension, and carries the forward and backward
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// links for the pending SRB queue.
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//
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typedef struct _SRB_EXTENSION
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{
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LIST_ENTRY ListEntry;
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PHW_STREAM_REQUEST_BLOCK pSrb;
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}SRB_EXTENSION, *PSRB_EXTENSION;
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/*****************************************************************************
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*
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* the following section defines prototypes for the minidriver initialization
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* routines
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*
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******************************************************************************/
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//
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// DriverEntry:
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//
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// This routine is called when the mini driver is first loaded. The driver
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// should then call the StreamClassRegisterAdapter function to register with
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// the stream class driver
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//
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ULONG DriverEntry (PVOID Context1, PVOID Context2);
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//
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// This routine is called by the stream class driver with configuration
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// information for an adapter that the mini driver should load on. The mini
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// driver should still perform a small verification to determine that the
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// adapter is present at the specified addresses, but should not attempt to
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// find an adapter as it would have with previous NT miniports.
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//
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// All initialization of the codec should also be performed at this time.
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//
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BOOLEAN CodecInitialize (IN OUT PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// This routine is called when the system is going to remove or disable the
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// device.
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//
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// The mini-driver should free any system resources that it allocated at this
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// time. Note that system resources allocated for the mini-driver by the
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// stream class driver will be free'd by the stream driver, and should not be
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// free'd in this routine. (Such as the HW_DEVICE_EXTENSION)
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//
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BOOLEAN CodecUnInitialize( PHW_STREAM_REQUEST_BLOCK pSrb);
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BOOLEAN CodecQueryUnload ( PHW_STREAM_REQUEST_BLOCK pSrb); // Not implemented currently
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//
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// This is the prototype for the Hardware Interrupt Handler. This routine
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// will be called if the minidriver registers for and receives an interrupt
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//
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BOOLEAN HwInterrupt ( IN PHW_DEVICE_EXTENSION pDeviceExtension );
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//
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// This is the prototype for the stream enumeration function. This routine
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// provides the stream class driver with the information on data stream types
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// supported
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//
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VOID CodecStreamInfo(PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// This is the prototype for the stream open function
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//
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VOID CodecOpenStream(PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// This is the prototype for the stream close function
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//
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VOID CodecCloseStream(PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// This is the prototype for the CodecReceivePacket routine. This is the
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// entry point for command packets that are sent to the codec (not to a
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// specific open stream)
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//
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VOID STREAMAPI CodecReceivePacket(IN PHW_STREAM_REQUEST_BLOCK Srb);
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//
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// This is the protoype for the cancel packet routine. This routine enables
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// the stream class driver to cancel an outstanding packet.
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//
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VOID STREAMAPI CodecCancelPacket(IN PHW_STREAM_REQUEST_BLOCK Srb);
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//
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// This is the packet timeout function. The codec may choose to ignore a
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// packet timeout, or reset the codec and cancel the requests, as required.
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//
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VOID STREAMAPI CodecTimeoutPacket(IN PHW_STREAM_REQUEST_BLOCK Srb);
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VOID STREAMAPI CodecGetProperty(IN PHW_STREAM_REQUEST_BLOCK Srb);
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VOID STREAMAPI CodecSetProperty(IN PHW_STREAM_REQUEST_BLOCK Srb);
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BOOL
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CodecCompareGUIDsAndFormatSize( IN PKSDATARANGE DataRange1,
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IN PKSDATARANGE DataRange2,
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BOOLEAN bCheckSize );
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BOOL
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CodecVerifyFormat(IN KSDATAFORMAT *pKSDataFormat,
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IN UINT StreamNumber,
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IN PKSDATARANGE pMatchedFormat );
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BOOL
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CodecVBIFormatFromRange(
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IN PHW_STREAM_REQUEST_BLOCK pSrb);
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BOOL
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CodecCCFormatFromRange(
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IN PHW_STREAM_REQUEST_BLOCK pSrb );
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void
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CompleteStreamSRB (
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IN PHW_STREAM_REQUEST_BLOCK pSrb,
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STREAM_MINIDRIVER_STREAM_NOTIFICATION_TYPE NotificationType1,
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BOOL fUseNotification2,
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STREAM_MINIDRIVER_STREAM_NOTIFICATION_TYPE NotificationType2
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);
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void
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CompleteDeviceSRB (
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IN PHW_STREAM_REQUEST_BLOCK pSrb,
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IN STREAM_MINIDRIVER_DEVICE_NOTIFICATION_TYPE NotificationType,
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BOOL fReadyForNext
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);
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//
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// prototypes for data handling routines
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//
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void CompleteStreamIRP (IN PHW_STREAM_REQUEST_BLOCK pSrb, BOOLEAN ReadyForNext);
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VOID STREAMAPI VBIReceiveDataPacket(IN PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID STREAMAPI VBIReceiveCtrlPacket(IN PHW_STREAM_REQUEST_BLOCK pSrb);
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void EnableIRQ(PHW_STREAM_OBJECT pstrm);
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void DisableIRQ(PHW_STREAM_OBJECT pstrm);
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//
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// prototypes for properties and states
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//
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VOID VideoSetState(PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID VideoGetState(PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID VideoSetProperty(PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID VideoGetProperty(PHW_STREAM_REQUEST_BLOCK pSrb);
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//VOID VideoStreamSetConnectionProperty (PHW_STREAM_REQUEST_BLOCK pSrb); // Not implemented
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VOID VideoStreamGetConnectionProperty (PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID VideoStreamSetVBIFilteringProperty (PHW_STREAM_REQUEST_BLOCK pSrb);
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VOID VideoStreamGetVBIFilteringProperty (PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// system time functions
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//
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ULONGLONG VideoGetSystemTime();
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//
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// stream clock functions
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//
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VOID VideoIndicateMasterClock(PHW_STREAM_REQUEST_BLOCK pSrb);
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//
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// SRB Queue Management functions
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//
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BOOL STREAMAPI QueueAddIfNotEmpty(
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IN PHW_STREAM_REQUEST_BLOCK,
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IN PKSPIN_LOCK,
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IN PLIST_ENTRY
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);
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BOOL STREAMAPI QueueAdd(
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IN PHW_STREAM_REQUEST_BLOCK,
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IN PKSPIN_LOCK,
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IN PLIST_ENTRY
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);
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BOOL STREAMAPI QueueRemove(
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IN OUT PHW_STREAM_REQUEST_BLOCK *,
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IN PKSPIN_LOCK,
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IN PLIST_ENTRY
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);
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BOOL STREAMAPI QueueRemoveSpecific(
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IN PHW_STREAM_REQUEST_BLOCK,
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IN PKSPIN_LOCK,
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IN PLIST_ENTRY
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);
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BOOL STREAMAPI QueueEmpty(
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IN PKSPIN_LOCK,
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IN PLIST_ENTRY
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);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif //__CODMAIN_H__
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