initial commit

sources from http://omapzoom.org

1 files changed, 2883 insertions, 0 deletions

diff --git a/pvr-source/tools/intern/debug/dbgdriv/common/dbgdriv.c b/pvr-source/tools/intern/debug/dbgdriv/common/dbgdriv.c
new file mode 100644
index 0000000..0b8d445
--- /dev/null
+++ b/pvr-source/tools/intern/debug/dbgdriv/common/dbgdriv.c
@@ -0,0 +1,2883 @@
+/*************************************************************************/ /*!
+@Title          Debug Driver
+@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
+@Description    32 Bit kernel mode debug driver
+@License        Dual MIT/GPLv2
+
+The contents of this file are subject to the MIT license as set out below.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+Alternatively, the contents of this file may be used under the terms of
+the GNU General Public License Version 2 ("GPL") in which case the provisions
+of GPL are applicable instead of those above.
+
+If you wish to allow use of your version of this file only under the terms of
+GPL, and not to allow others to use your version of this file under the terms
+of the MIT license, indicate your decision by deleting the provisions above
+and replace them with the notice and other provisions required by GPL as set
+out in the file called "GPL-COPYING" included in this distribution. If you do
+not delete the provisions above, a recipient may use your version of this file
+under the terms of either the MIT license or GPL.
+
+This License is also included in this distribution in the file called
+"MIT-COPYING".
+
+EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
+PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/ /**************************************************************************/
+
+#ifdef LINUX
+#include <linux/string.h>
+#endif
+#ifdef __QNXNTO__
+#include <string.h>
+#endif
+
+#include "img_types.h"
+#include "pvr_debug.h"
+#include "dbgdrvif.h"
+#include "dbgdriv.h"
+#include "hotkey.h"
+#include "hostfunc.h"
+#include "pvr_debug.h"
+
+
+
+
+#define LAST_FRAME_BUF_SIZE	1024
+
+typedef struct _DBG_LASTFRAME_BUFFER_
+{
+	PDBG_STREAM	psStream;
+	IMG_UINT8 ui8Buffer[LAST_FRAME_BUF_SIZE];
+	IMG_UINT32		ui32BufLen;
+	struct _DBG_LASTFRAME_BUFFER_	*psNext;
+} *PDBG_LASTFRAME_BUFFER;
+
+/******************************************************************************
+ Global vars
+******************************************************************************/
+
+static PDBG_STREAM	g_psStreamList = 0;
+static PDBG_LASTFRAME_BUFFER	g_psLFBufferList;
+
+static IMG_UINT32		g_ui32LOff = 0;
+static IMG_UINT32		g_ui32Line = 0;
+static IMG_UINT32		g_ui32MonoLines = 25;
+
+static IMG_BOOL			g_bHotkeyMiddump = IMG_FALSE;
+static IMG_UINT32		g_ui32HotkeyMiddumpStart = 0xffffffff;
+static IMG_UINT32		g_ui32HotkeyMiddumpEnd = 0xffffffff;
+
+IMG_VOID *				g_pvAPIMutex=IMG_NULL;
+
+extern IMG_UINT32		g_ui32HotKeyFrame;
+extern IMG_BOOL			g_bHotKeyPressed;
+extern IMG_BOOL			g_bHotKeyRegistered;
+
+IMG_BOOL				gbDumpThisFrame = IMG_FALSE;
+
+
+IMG_UINT32 SpaceInStream(PDBG_STREAM psStream);
+IMG_BOOL ExpandStreamBuffer(PDBG_STREAM psStream, IMG_UINT32 ui32NewSize);
+PDBG_LASTFRAME_BUFFER FindLFBuf(PDBG_STREAM psStream);
+
+/***************************************************************************
+ Declare kernel mode service table.
+***************************************************************************/
+DBGKM_SERVICE_TABLE g_sDBGKMServices =
+{
+	sizeof (DBGKM_SERVICE_TABLE),
+	ExtDBGDrivCreateStream,
+	ExtDBGDrivDestroyStream,
+	ExtDBGDrivFindStream,
+	ExtDBGDrivWriteString,
+	ExtDBGDrivReadString,
+	ExtDBGDrivWrite,
+	ExtDBGDrivRead,
+	ExtDBGDrivSetCaptureMode,
+	ExtDBGDrivSetOutputMode,
+	ExtDBGDrivSetDebugLevel,
+	ExtDBGDrivSetFrame,
+	ExtDBGDrivGetFrame,
+	ExtDBGDrivOverrideMode,
+	ExtDBGDrivDefaultMode,
+	ExtDBGDrivWrite2,
+	ExtDBGDrivWriteStringCM,
+	ExtDBGDrivWriteCM,
+	ExtDBGDrivSetMarker,
+	ExtDBGDrivGetMarker,
+	ExtDBGDrivStartInitPhase,
+	ExtDBGDrivStopInitPhase,
+	ExtDBGDrivIsCaptureFrame,
+	ExtDBGDrivWriteLF,
+	ExtDBGDrivReadLF,
+	ExtDBGDrivGetStreamOffset,
+	ExtDBGDrivSetStreamOffset,
+	ExtDBGDrivIsLastCaptureFrame,
+	ExtDBGDrivWaitForEvent,
+	ExtDBGDrivSetConnectNotifier,
+	ExtDBGDrivWritePersist
+};
+
+
+/* Static function declarations */
+static IMG_UINT32 DBGDrivWritePersist(PDBG_STREAM psMainStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level);
+static IMG_VOID InvalidateAllStreams(IMG_VOID);
+
+/*****************************************************************************
+ Code
+*****************************************************************************/
+
+
+
+DBGKM_CONNECT_NOTIFIER g_fnDBGKMNotifier;
+
+/*!
+ @name		ExtDBGDrivSetConnectNotifier
+ @brief		Registers one or more services callback functions which are called on events in the dbg driver
+ @param		fn_notifier - services callbacks
+ @return	none
+ */
+IMG_VOID IMG_CALLCONV ExtDBGDrivSetConnectNotifier(DBGKM_CONNECT_NOTIFIER fn_notifier)
+{
+	/* Set the callback function which enables the debug driver to
+	 * communicate to services KM when pdump is connected.
+	 */
+	g_fnDBGKMNotifier = fn_notifier;
+}
+
+/*!
+ @name	ExtDBGDrivCreateStream
+ */
+IMG_VOID * IMG_CALLCONV ExtDBGDrivCreateStream(IMG_CHAR *	pszName, IMG_UINT32 ui32CapMode, IMG_UINT32	ui32OutMode, IMG_UINT32 ui32Flags, IMG_UINT32 ui32Size)
+{
+	IMG_VOID *	pvRet;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	pvRet=DBGDrivCreateStream(pszName, ui32CapMode, ui32OutMode, ui32Flags, ui32Size);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return pvRet;
+}
+
+/*!
+ @name	ExtDBGDrivDestroyStream
+ */
+void IMG_CALLCONV ExtDBGDrivDestroyStream(PDBG_STREAM psStream)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivDestroyStream(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivFindStream
+ */
+IMG_VOID * IMG_CALLCONV ExtDBGDrivFindStream(IMG_CHAR * pszName, IMG_BOOL bResetStream)
+{
+	IMG_VOID *	pvRet;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	pvRet=DBGDrivFindStream(pszName, bResetStream);
+	if(g_fnDBGKMNotifier.pfnConnectNotifier)
+	{
+		g_fnDBGKMNotifier.pfnConnectNotifier();
+	}
+	else
+	{
+		PVR_DPF((PVR_DBG_ERROR, "pfnConnectNotifier not initialised.\n"));
+	}		
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return pvRet;
+}
+
+/*!
+ @name	ExtDBGDrivWriteString
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWriteString(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivWriteString(psStream, pszString, ui32Level);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivReadString
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivReadString(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Limit)
+{
+	IMG_UINT32 ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivReadString(psStream, pszString, ui32Limit);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivWrite
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWrite(PDBG_STREAM psStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivWrite(psStream, pui8InBuf, ui32InBuffSize, ui32Level);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivRead
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivRead(PDBG_STREAM psStream, IMG_BOOL bReadInitBuffer, IMG_UINT32 ui32OutBuffSize,IMG_UINT8 * pui8OutBuf)
+{
+	IMG_UINT32 ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivRead(psStream, bReadInitBuffer, ui32OutBuffSize, pui8OutBuf);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivSetCaptureMode
+ */
+void IMG_CALLCONV ExtDBGDrivSetCaptureMode(PDBG_STREAM psStream,IMG_UINT32 ui32Mode,IMG_UINT32 ui32Start,IMG_UINT32 ui32End,IMG_UINT32 ui32SampleRate)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetCaptureMode(psStream, ui32Mode, ui32Start, ui32End, ui32SampleRate);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivSetOutputMode
+ */
+void IMG_CALLCONV ExtDBGDrivSetOutputMode(PDBG_STREAM psStream,IMG_UINT32 ui32OutMode)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetOutputMode(psStream, ui32OutMode);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivSetDebugLevel
+ */
+void IMG_CALLCONV ExtDBGDrivSetDebugLevel(PDBG_STREAM psStream,IMG_UINT32 ui32DebugLevel)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetDebugLevel(psStream, ui32DebugLevel);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivSetFrame
+ */
+void IMG_CALLCONV ExtDBGDrivSetFrame(PDBG_STREAM psStream,IMG_UINT32 ui32Frame)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetFrame(psStream, ui32Frame);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivGetFrame
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivGetFrame(PDBG_STREAM psStream)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivGetFrame(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivIsLastCaptureFrame
+ */
+IMG_BOOL IMG_CALLCONV ExtDBGDrivIsLastCaptureFrame(PDBG_STREAM psStream)
+{
+	IMG_BOOL	bRet;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	bRet = DBGDrivIsLastCaptureFrame(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return bRet;
+}
+
+/*!
+ @name	ExtDBGDrivIsCaptureFrame
+ */
+IMG_BOOL IMG_CALLCONV ExtDBGDrivIsCaptureFrame(PDBG_STREAM psStream, IMG_BOOL bCheckPreviousFrame)
+{
+	IMG_BOOL	bRet;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	bRet = DBGDrivIsCaptureFrame(psStream, bCheckPreviousFrame);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return bRet;
+}
+
+/*!
+ @name	ExtDBGDrivOverrideMode
+ */
+void IMG_CALLCONV ExtDBGDrivOverrideMode(PDBG_STREAM psStream,IMG_UINT32 ui32Mode)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivOverrideMode(psStream, ui32Mode);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivDefaultMode
+ */
+void IMG_CALLCONV ExtDBGDrivDefaultMode(PDBG_STREAM psStream)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivDefaultMode(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivWrite2
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWrite2(PDBG_STREAM psStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivWrite2(psStream, pui8InBuf, ui32InBuffSize, ui32Level);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivWritePersist
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWritePersist(PDBG_STREAM psStream,IMG_UINT8 *pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivWritePersist(psStream, pui8InBuf, ui32InBuffSize, ui32Level);
+	if(ui32Ret==0xFFFFFFFFU)
+	{
+		PVR_DPF((PVR_DBG_ERROR, "An error occurred in DBGDrivWritePersist."));
+	}
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivWriteStringCM
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWriteStringCM(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret=DBGDrivWriteStringCM(psStream, pszString, ui32Level);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivWriteCM
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWriteCM(PDBG_STREAM psStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Ret;
+	
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+	
+	ui32Ret=DBGDrivWriteCM(psStream, pui8InBuf, ui32InBuffSize, ui32Level);
+	
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+	
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivSetMarker
+ */
+void IMG_CALLCONV ExtDBGDrivSetMarker(PDBG_STREAM psStream, IMG_UINT32 ui32Marker)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetMarker(psStream, ui32Marker);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivGetMarker
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivGetMarker(PDBG_STREAM psStream)
+{
+	IMG_UINT32	ui32Marker;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Marker = DBGDrivGetMarker(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Marker;
+}
+
+/*!
+ @name	ExtDBGDrivWriteLF
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivWriteLF(PDBG_STREAM psStream, IMG_UINT8 * pui8InBuf, IMG_UINT32 ui32InBuffSize, IMG_UINT32 ui32Level, IMG_UINT32 ui32Flags)
+{
+	IMG_UINT32	ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret = DBGDrivWriteLF(psStream, pui8InBuf, ui32InBuffSize, ui32Level, ui32Flags);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivReadLF
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivReadLF(PDBG_STREAM psStream, IMG_UINT32 ui32OutBuffSize, IMG_UINT8 * pui8OutBuf)
+{
+	IMG_UINT32 ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret = DBGDrivReadLF(psStream, ui32OutBuffSize, pui8OutBuf);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+
+/*!
+ @name	ExtDBGDrivStartInitPhase
+ */
+IMG_VOID IMG_CALLCONV ExtDBGDrivStartInitPhase(PDBG_STREAM psStream)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivStartInitPhase(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivStopInitPhase
+ */
+IMG_VOID IMG_CALLCONV ExtDBGDrivStopInitPhase(PDBG_STREAM psStream)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivStopInitPhase(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return;
+}
+
+/*!
+ @name	ExtDBGDrivGetStreamOffset
+ */
+IMG_UINT32 IMG_CALLCONV ExtDBGDrivGetStreamOffset(PDBG_STREAM psStream)
+{
+	IMG_UINT32 ui32Ret;
+
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	ui32Ret = DBGDrivGetStreamOffset(psStream);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+
+	return ui32Ret;
+}
+
+/*!
+ @name	ExtDBGDrivSetStreamOffset
+ */
+IMG_VOID IMG_CALLCONV ExtDBGDrivSetStreamOffset(PDBG_STREAM psStream, IMG_UINT32 ui32StreamOffset)
+{
+	/* Aquire API Mutex */
+	HostAquireMutex(g_pvAPIMutex);
+
+	DBGDrivSetStreamOffset(psStream, ui32StreamOffset);
+
+	/* Release API Mutex */
+	HostReleaseMutex(g_pvAPIMutex);
+}
+
+/*!
+ @name	ExtDBGDrivWaitForEvent
+ */
+IMG_VOID IMG_CALLCONV ExtDBGDrivWaitForEvent(DBG_EVENT eEvent)
+{
+#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
+	DBGDrivWaitForEvent(eEvent);
+#else	/* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */
+	PVR_UNREFERENCED_PARAMETER(eEvent);				/* PRQA S 3358 */
+#endif	/* defined(SUPPORT_DBGDRV_EVENT_OBJECTS) */
+}
+
+/*!****************************************************************************
+ @name		AtoI
+ @brief		Returns the integer value of a decimal string
+ @param		szIn - String with hexadecimal value
+ @return	IMG_UINT32 integer value, 0 if string is null or not valid
+				Based on Max`s one, now copes with (only) hex ui32ords, upper or lower case a-f.
+*****************************************************************************/
+IMG_UINT32 AtoI(IMG_CHAR *szIn)
+{
+	IMG_INT		iLen = 0;
+	IMG_UINT32	ui32Value = 0;
+	IMG_UINT32	ui32Digit=1;
+	IMG_UINT32	ui32Base=10;
+	IMG_INT		iPos;
+	IMG_CHAR	bc;
+
+	//get len of string
+	while (szIn[iLen] > 0)
+	{
+		iLen ++;
+	}
+
+	//nothing to do
+	if (iLen == 0)
+	{
+		return (0);
+	}
+
+	/* See if we have an 'x' or 'X' before the number to make it a hex number */
+	iPos=0;
+	while (szIn[iPos] == '0')
+	{
+		iPos++;
+	}
+	if (szIn[iPos] == '\0')
+	{
+		return 0;
+	}
+	if (szIn[iPos] == 'x' || szIn[iPos] == 'X')
+	{
+		ui32Base=16;
+		szIn[iPos]='0';
+	}
+
+	//go through string from right (least significant) to left
+	for (iPos = iLen - 1; iPos >= 0; iPos --)
+	{
+		bc = szIn[iPos];
+
+		if ( (bc >= 'a') && (bc <= 'f') && ui32Base == 16)			//handle lower case a-f
+		{
+			bc -= 'a' - 0xa;
+		}
+		else
+		if ( (bc >= 'A') && (bc <= 'F') && ui32Base == 16)			//handle upper case A-F
+		{
+			bc -= 'A' - 0xa;
+		}
+		else
+		if ((bc >= '0') && (bc <= '9'))				//if char out of range, return 0
+		{
+			bc -= '0';
+		}
+		else
+			return (0);
+
+		ui32Value += (IMG_UINT32)bc  * ui32Digit;
+
+		ui32Digit = ui32Digit * ui32Base;
+	}
+	return (ui32Value);
+}
+
+
+/*!****************************************************************************
+ @name		StreamValid
+ @brief		Validates supplied debug buffer.
+ @param		psStream - debug stream
+ @return	true if valid
+*****************************************************************************/
+static IMG_BOOL StreamValid(PDBG_STREAM psStream)
+{
+	PDBG_STREAM	psThis;
+
+	psThis = g_psStreamList;
+
+	while (psThis)
+	{
+		if (psStream && (psThis == psStream) )
+		{
+			return(IMG_TRUE);
+		}
+		else
+		{
+			psThis = psThis->psNext;
+		}
+	}
+
+	return(IMG_FALSE);
+}
+
+
+/*!****************************************************************************
+ @name		StreamValidForRead
+ @brief		Validates supplied debug buffer for read op.
+ @param		psStream - debug stream
+ @return	true if readable
+*****************************************************************************/
+static IMG_BOOL StreamValidForRead(PDBG_STREAM psStream)
+{
+	if( StreamValid(psStream) &&
+		((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_WRITEONLY) == 0) )
+	{
+		return(IMG_TRUE);
+	}
+
+	return(IMG_FALSE);
+}
+
+/*!****************************************************************************
+ @name		StreamValidForWrite
+ @brief		Validates supplied debug buffer for write op.
+ @param		psStream - debug stream
+ @return	true if writable
+*****************************************************************************/
+static IMG_BOOL StreamValidForWrite(PDBG_STREAM psStream)
+{
+	if( StreamValid(psStream) &&
+		((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_READONLY) == 0) )
+	{
+		return(IMG_TRUE);
+	}
+
+	return(IMG_FALSE);
+}
+
+
+/*!****************************************************************************
+ @name		Write
+ @brief		Copies data from a buffer into selected stream. Stream size is fixed.
+ @param		psStream - stream for output
+ @param		pui8Data - input buffer
+ @param		ui32InBuffSize - size of input
+ @return	none
+*****************************************************************************/
+static void Write(PDBG_STREAM psStream,IMG_PUINT8 pui8Data,IMG_UINT32 ui32InBuffSize)
+{
+	/*
+		Split copy into two bits as necessary (if we're allowed to wrap).
+	*/
+	if (!psStream->bCircularAllowed)
+	{
+		//PVR_ASSERT( (psStream->ui32WPtr + ui32InBuffSize) < psStream->ui32Size );
+	}
+
+	if ((psStream->ui32WPtr + ui32InBuffSize) > psStream->ui32Size)
+	{
+		/* Yes we need two bits, calculate their sizes */
+		IMG_UINT32 ui32B1 = psStream->ui32Size - psStream->ui32WPtr;
+		IMG_UINT32 ui32B2 = ui32InBuffSize - ui32B1;
+
+		/* Copy first block to current location */
+		HostMemCopy((IMG_PVOID)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32WPtr),
+				(IMG_PVOID) pui8Data,
+				ui32B1);
+
+		/* Copy second block to start of buffer */
+		HostMemCopy(psStream->pvBase,
+				(IMG_PVOID)(pui8Data + ui32B1),
+				ui32B2);
+
+		/* Set pointer to be the new end point */
+		psStream->ui32WPtr = ui32B2;
+	}
+	else
+	{	/* Can fit block in single chunk */
+		HostMemCopy((IMG_PVOID)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32WPtr),
+				(IMG_PVOID) pui8Data,
+				ui32InBuffSize);
+
+		psStream->ui32WPtr += ui32InBuffSize;
+
+		if (psStream->ui32WPtr == psStream->ui32Size)
+		{
+			psStream->ui32WPtr = 0;
+		}
+	}
+	psStream->ui32DataWritten += ui32InBuffSize;
+}
+
+
+/*!****************************************************************************
+ @name		MonoOut
+ @brief		Output data to mono display. [Possibly deprecated]
+ @param		pszString - input
+ @param		bNewLine - line wrapping
+ @return	none
+*****************************************************************************/
+void MonoOut(IMG_CHAR * pszString,IMG_BOOL bNewLine)
+{
+#if defined (_WIN64)
+	PVR_UNREFERENCED_PARAMETER(pszString);
+	PVR_UNREFERENCED_PARAMETER(bNewLine);
+
+#else
+	IMG_UINT32 	i;
+	IMG_CHAR *	pScreen;
+
+	pScreen = (IMG_CHAR *) DBGDRIV_MONOBASE;
+
+	pScreen += g_ui32Line * 160;
+
+	/*
+		Write the string.
+	*/
+	i=0;
+	do
+	{
+		pScreen[g_ui32LOff + (i*2)] = pszString[i];
+		pScreen[g_ui32LOff + (i*2)+1] = 127;
+		i++;
+	}
+	while ((pszString[i] != 0) && (i < 4096));
+
+	g_ui32LOff += i * 2;
+
+	if (bNewLine)
+	{
+		g_ui32LOff = 0;
+		g_ui32Line++;
+	}
+
+	/*
+		Scroll if necssary.
+	*/
+	if (g_ui32Line == g_ui32MonoLines)
+	{
+		g_ui32Line = g_ui32MonoLines - 1;
+
+		HostMemCopy((IMG_VOID *)DBGDRIV_MONOBASE,(IMG_VOID *)(DBGDRIV_MONOBASE + 160),160 * (g_ui32MonoLines - 1));
+
+		HostMemSet((IMG_VOID *)(DBGDRIV_MONOBASE + (160 * (g_ui32MonoLines - 1))),0,160);
+	}
+#endif	
+}
+
+/*!****************************************************************************
+ @name		WriteExpandingBuffer
+ @brief		Copies data from a buffer into selected stream. Stream size may be expandable.
+ @param		psStream - stream for output
+ @param		pui8InBuf - input buffer
+ @param		ui32InBuffSize - size of input
+ @return	bytes copied
+*****************************************************************************/
+static IMG_UINT32 WriteExpandingBuffer(PDBG_STREAM psStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize)
+{
+	IMG_UINT ui32Space;
+
+	/*
+		How much space have we got in the buffer ?
+	*/
+	ui32Space = SpaceInStream(psStream);
+
+	/*
+		Don't copy anything if we don't have space or buffers not enabled.
+	*/
+	if ((psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_STREAMENABLE) == 0)
+	{
+		PVR_DPF((PVR_DBG_ERROR, "WriteExpandingBuffer: buffer %x is disabled", (IMG_UINTPTR_T) psStream));
+		return(0);
+	}
+
+	/*
+		Check if we can expand the buffer 
+	*/
+	if (psStream->psCtrl->ui32Flags & DEBUG_FLAGS_NO_BUF_EXPANDSION)
+	{
+		/*
+			Don't do anything if we've got less that 32 ui8tes of space and
+			we're not allowing expansion of buffer space...
+		*/
+		if (ui32Space < 32)
+		{
+			PVR_DPF((PVR_DBG_ERROR, "WriteExpandingBuffer: buffer %x is full and isn't expandable", (IMG_UINTPTR_T) psStream));
+			return(0);
+		}
+	}
+	else
+	{
+		if ((ui32Space < 32) || (ui32Space <= (ui32InBuffSize + 4)))
+		{
+			IMG_UINT32	ui32NewBufSize;
+
+			/*
+				Find new buffer size 
+			*/
+			ui32NewBufSize = 2 * psStream->ui32Size;
+
+			PVR_DPF((PVR_DBGDRIV_MESSAGE, "Expanding buffer size = %x, new size = %x",
+					psStream->ui32Size, ui32NewBufSize));
+
+			if (ui32InBuffSize > psStream->ui32Size)
+			{
+				ui32NewBufSize += ui32InBuffSize;
+			}
+
+			/* 
+				Attempt to expand the buffer 
+			*/
+			if (!ExpandStreamBuffer(psStream,ui32NewBufSize))
+			{
+				if (ui32Space < 32)
+				{
+					if(psStream->bCircularAllowed)
+					{
+						return(0);
+					}
+					else
+					{
+						/* out of memory */
+						PVR_DPF((PVR_DBG_ERROR, "WriteExpandingBuffer: Unable to expand %x. Out of memory.", (IMG_UINTPTR_T) psStream));
+						InvalidateAllStreams();
+						return (0xFFFFFFFFUL);
+					}
+				}
+			}
+
+			/* 
+				Recalc the space in the buffer 
+			*/
+			ui32Space = SpaceInStream(psStream);
+			PVR_DPF((PVR_DBGDRIV_MESSAGE, "Expanded buffer, free space = %x",
+					ui32Space));
+		}
+	}
+
+	/*
+		Only copy what we can..
+	*/
+	if (ui32Space <= (ui32InBuffSize + 4))
+	{
+		ui32InBuffSize = ui32Space - 4;
+	}
+
+	/*
+		Write the stuff...
+	*/
+	Write(psStream,pui8InBuf,ui32InBuffSize);
+
+#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
+	if (ui32InBuffSize)
+	{
+		HostSignalEvent(DBG_EVENT_STREAM_DATA);
+	}
+#endif
+	return(ui32InBuffSize);
+}
+
+/*****************************************************************************
+******************************************************************************
+******************************************************************************
+ THE ACTUAL FUNCTIONS
+******************************************************************************
+******************************************************************************
+*****************************************************************************/
+
+/*!****************************************************************************
+ @name		DBGDrivCreateStream
+ @brief		Creates a pdump/debug stream
+ @param		pszName - stream name
+ @param		ui32CapMode - capture mode (framed, continuous, hotkey)
+ @param		ui32OutMode - output mode (see dbgdrvif.h)
+ @param		ui32Flags - output flags, text stream bit is set for pdumping
+ @param		ui32Size - size of stream buffer in pages
+ @return	none
+*****************************************************************************/
+IMG_VOID * IMG_CALLCONV DBGDrivCreateStream(IMG_CHAR *		pszName,
+								   IMG_UINT32 	ui32CapMode,
+								   IMG_UINT32 	ui32OutMode,
+								   IMG_UINT32	ui32Flags,
+								   IMG_UINT32 	ui32Size)
+{
+	PDBG_STREAM psStream;
+	PDBG_STREAM	psInitStream;
+	PDBG_LASTFRAME_BUFFER	psLFBuffer;
+	PDBG_STREAM_CONTROL psCtrl;
+	IMG_UINT32		ui32Off;
+	IMG_VOID *		pvBase;	
+	static IMG_CHAR pszNameInitSuffix[] = "_Init";
+	IMG_UINT32		ui32OffSuffix;
+
+	/*
+		If we already have a buffer using this name just return
+		its handle.
+	*/
+	psStream = (PDBG_STREAM) DBGDrivFindStream(pszName, IMG_FALSE);
+
+	if (psStream)
+	{
+		return ((IMG_VOID *) psStream);
+	}
+
+	/*
+		Allocate memory for control structures
+	*/
+	psStream = HostNonPageablePageAlloc(1);
+	psInitStream = HostNonPageablePageAlloc(1);
+	psLFBuffer = HostNonPageablePageAlloc(1);
+	psCtrl = HostNonPageablePageAlloc(1);
+	if	(
+			(!psStream) ||
+			(!psInitStream) ||
+			(!psLFBuffer) ||
+			(!psCtrl)
+		)
+	{
+		PVR_DPF((PVR_DBG_ERROR,"DBGDriv: Couldn't alloc control structs\n\r"));
+		return((IMG_VOID *) 0);
+	}
+
+	/* Allocate memory for buffer */
+	if ((ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+	{
+		pvBase = HostNonPageablePageAlloc(ui32Size);
+	}
+	else
+	{
+		pvBase = HostPageablePageAlloc(ui32Size);
+	}
+
+	if (!pvBase)
+	{
+		PVR_DPF((PVR_DBG_ERROR,"DBGDriv: Couldn't alloc Stream buffer\n\r"));
+		HostNonPageablePageFree(psStream);
+		return((IMG_VOID *) 0);
+	}
+
+	/* Setup control state */
+	psCtrl->ui32Flags = ui32Flags;
+	psCtrl->ui32CapMode = ui32CapMode;
+	psCtrl->ui32OutMode = ui32OutMode;
+	psCtrl->ui32DebugLevel = DEBUG_LEVEL_0;
+	psCtrl->ui32DefaultMode = ui32CapMode;
+	psCtrl->ui32Start = 0;
+	psCtrl->ui32End = 0;
+	psCtrl->ui32Current = 0;
+	psCtrl->ui32SampleRate = 1;
+	psCtrl->bInitPhaseComplete = IMG_FALSE;
+
+	/*
+		Setup internal debug buffer state.
+	*/
+	psStream->psNext = 0;
+	psStream->pvBase = pvBase;
+	psStream->psCtrl = psCtrl;
+	psStream->ui32Size = ui32Size * 4096UL;
+	psStream->ui32RPtr = 0;
+	psStream->ui32WPtr = 0;
+	psStream->ui32DataWritten = 0;
+	psStream->ui32Marker = 0;
+	psStream->bCircularAllowed = IMG_TRUE;
+	psStream->ui32InitPhaseWOff = 0;
+
+	/* Allocate memory for buffer */
+	if ((ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+	{
+		pvBase = HostNonPageablePageAlloc(ui32Size);
+	}
+	else
+	{
+		pvBase = HostPageablePageAlloc(ui32Size);
+	}
+
+	if (!pvBase)
+	{
+		PVR_DPF((PVR_DBG_ERROR,"DBGDriv: Couldn't alloc InitStream buffer\n\r"));
+		
+		if ((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+		{
+			HostNonPageablePageFree(psStream->pvBase);
+		}
+		else
+		{
+			HostPageablePageFree(psStream->pvBase);
+		}
+		HostNonPageablePageFree(psStream);
+		return((IMG_VOID *) 0);
+	}
+
+	/* Initialise the stream for the init phase */
+	psInitStream->psNext = 0;
+	psInitStream->pvBase = pvBase;
+	psInitStream->psCtrl = psCtrl;
+	psInitStream->ui32Size = ui32Size * 4096UL;
+	psInitStream->ui32RPtr = 0;
+	psInitStream->ui32WPtr = 0;
+	psInitStream->ui32DataWritten = 0;
+	psInitStream->ui32Marker = 0;
+	psInitStream->bCircularAllowed = IMG_FALSE;
+	psInitStream->ui32InitPhaseWOff = 0;
+	psStream->psInitStream = psInitStream;
+
+	/* Setup last frame buffer */
+	psLFBuffer->psStream = psStream;
+	psLFBuffer->ui32BufLen = 0UL;
+
+	g_bHotkeyMiddump = IMG_FALSE;
+	g_ui32HotkeyMiddumpStart = 0xffffffffUL;
+	g_ui32HotkeyMiddumpEnd = 0xffffffffUL;
+
+	/*
+		Copy buffer name.
+	*/
+	ui32Off = 0;
+
+	do
+	{
+		psStream->szName[ui32Off] = pszName[ui32Off];
+		psInitStream->szName[ui32Off] = pszName[ui32Off];
+		ui32Off++;
+	}
+	while ((pszName[ui32Off] != 0) && (ui32Off < (4096UL - sizeof(DBG_STREAM))));
+	psStream->szName[ui32Off] = pszName[ui32Off];	/* PRQA S 3689 */
+
+	/*
+		Append suffix to init phase name
+	*/
+	ui32OffSuffix = 0;
+	do
+	{
+		psInitStream->szName[ui32Off] = pszNameInitSuffix[ui32OffSuffix];
+		ui32Off++;
+		ui32OffSuffix++;
+	}
+	while (	(pszNameInitSuffix[ui32OffSuffix] != 0) &&
+			(ui32Off < (4096UL - sizeof(DBG_STREAM))));
+	psInitStream->szName[ui32Off] = pszNameInitSuffix[ui32OffSuffix];	/* PRQA S 3689 */
+
+	/*
+		Insert into list.
+	*/
+	psStream->psNext = g_psStreamList;
+	g_psStreamList = psStream;
+
+	psLFBuffer->psNext = g_psLFBufferList;
+	g_psLFBufferList = psLFBuffer;
+
+	AddSIDEntry(psStream);
+	
+	return((IMG_VOID *) psStream);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivDestroyStream
+ @brief		Delete a stream and free its memory
+ @param		psStream - stream to be removed
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivDestroyStream(PDBG_STREAM psStream)
+{
+	PDBG_STREAM	psStreamThis;
+	PDBG_STREAM	psStreamPrev;
+	PDBG_LASTFRAME_BUFFER	psLFBuffer;
+	PDBG_LASTFRAME_BUFFER	psLFThis;
+	PDBG_LASTFRAME_BUFFER	psLFPrev;
+
+	PVR_DPF((PVR_DBG_MESSAGE, "DBGDriv: Destroying stream %s\r\n", psStream->szName ));
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	RemoveSIDEntry(psStream);
+	
+	psLFBuffer = FindLFBuf(psStream);
+
+	/*
+		Remove from linked list.
+	*/
+	psStreamThis = g_psStreamList;
+	psStreamPrev = 0;
+
+	while (psStreamThis)
+	{
+		if (psStreamThis == psStream)
+		{
+			if (psStreamPrev)
+			{
+				psStreamPrev->psNext = psStreamThis->psNext;
+			}
+			else
+			{
+				g_psStreamList = psStreamThis->psNext;
+			}
+
+			psStreamThis = 0;
+		}
+		else
+		{
+			psStreamPrev = psStreamThis;
+			psStreamThis = psStreamThis->psNext;
+		}
+	}
+
+	psLFThis = g_psLFBufferList;
+	psLFPrev = 0;
+
+	while (psLFThis)
+	{
+		if (psLFThis == psLFBuffer)
+		{
+			if (psLFPrev)
+			{
+				psLFPrev->psNext = psLFThis->psNext;
+			}
+			else
+			{
+				g_psLFBufferList = psLFThis->psNext;
+			}
+
+			psLFThis = 0;
+		}
+		else
+		{
+			psLFPrev = psLFThis;
+			psLFThis = psLFThis->psNext;
+		}
+	}
+	/*
+		Dectivate hotkey it the stream is of this type.
+	*/
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_HOTKEY)
+	{
+		DeactivateHotKeys();
+	}
+
+	/*
+		And free its memory.
+	*/
+	if ((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+	{
+		HostNonPageablePageFree(psStream->psCtrl);
+		HostNonPageablePageFree(psStream->pvBase);
+		HostNonPageablePageFree(psStream->psInitStream->pvBase);
+	}
+	else
+	{
+		HostNonPageablePageFree(psStream->psCtrl);
+		HostPageablePageFree(psStream->pvBase);
+		HostPageablePageFree(psStream->psInitStream->pvBase);
+	}
+	
+	HostNonPageablePageFree(psStream->psInitStream);
+	HostNonPageablePageFree(psStream);
+	HostNonPageablePageFree(psLFBuffer);
+
+	if (g_psStreamList == 0)
+	{
+		PVR_DPF((PVR_DBG_MESSAGE,"DBGDriv: Stream list now empty" ));
+	}
+
+	return;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivFindStream
+ @brief		Finds/resets a named stream
+ @param		pszName - stream name
+ @param		bResetStream - whether to reset the stream, e.g. to end pdump init phase
+ @return	none
+*****************************************************************************/
+IMG_VOID * IMG_CALLCONV DBGDrivFindStream(IMG_CHAR * pszName, IMG_BOOL bResetStream)
+{
+	PDBG_STREAM	psStream;
+	PDBG_STREAM	psThis;
+	IMG_UINT32	ui32Off;
+	IMG_BOOL	bAreSame;
+
+	psStream = 0;
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "PDump client connecting to %s %s",
+			pszName,
+			(bResetStream == IMG_TRUE) ? "with reset" : "no reset"));
+
+	/*
+		Scan buffer names for supplied one.
+	*/
+	for (psThis = g_psStreamList; psThis != IMG_NULL; psThis = psThis->psNext)
+	{
+		bAreSame = IMG_TRUE;
+		ui32Off = 0;
+
+		if (strlen(psThis->szName) == strlen(pszName))
+		{
+			while ((psThis->szName[ui32Off] != 0) && (pszName[ui32Off] != 0) && (ui32Off < 128) && bAreSame)
+			{
+				if (psThis->szName[ui32Off] != pszName[ui32Off])
+				{
+					bAreSame = IMG_FALSE;
+				}
+
+				ui32Off++;
+			}
+		}
+		else
+		{
+			bAreSame = IMG_FALSE;
+		}
+
+		if (bAreSame)
+		{
+			psStream = psThis;
+			break;
+		}
+	}
+
+	if(bResetStream && psStream)
+	{
+		static IMG_CHAR szComment[] = "-- Init phase terminated\r\n";
+		psStream->psInitStream->ui32RPtr = 0;
+		psStream->ui32RPtr = 0;
+		psStream->ui32WPtr = 0;
+		psStream->ui32DataWritten = psStream->psInitStream->ui32DataWritten;
+		if (psStream->psCtrl->bInitPhaseComplete == IMG_FALSE)
+		{
+			if (psStream->psCtrl->ui32Flags & DEBUG_FLAGS_TEXTSTREAM)
+			{
+				DBGDrivWrite2(psStream, (IMG_UINT8 *)szComment, sizeof(szComment) - 1, 0x01);
+			}
+			psStream->psCtrl->bInitPhaseComplete = IMG_TRUE;
+		}
+
+		{
+			/* mark init stream to prevent further reading by pdump client */
+			psStream->psInitStream->ui32InitPhaseWOff = psStream->psInitStream->ui32WPtr;
+			PVR_DPF((PVR_DBGDRIV_MESSAGE, "Set %s client marker bo %x, total bw %x",
+					psStream->szName,
+					psStream->psInitStream->ui32InitPhaseWOff,
+					psStream->psInitStream->ui32DataWritten ));
+		}
+	}
+
+	return((IMG_VOID *) psStream);
+}
+
+static void IMG_CALLCONV DBGDrivInvalidateStream(PDBG_STREAM psStream)
+{
+	IMG_CHAR pszErrorMsg[] = "**OUTOFMEM\n";
+	IMG_UINT32 ui32Space;
+	IMG_UINT32 ui32Off = 0;
+	IMG_UINT32 ui32WPtr = psStream->ui32WPtr;
+	IMG_PUINT8 pui8Buffer = (IMG_UINT8 *) psStream->pvBase;
+	
+	PVR_DPF((PVR_DBG_ERROR, "DBGDrivInvalidateStream: An error occurred for stream %s\r\n", psStream->szName ));
+
+	/*
+		Validate buffer.
+	*/
+	/*
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+*/
+	/* Write what we can of the error message */
+	ui32Space = SpaceInStream(psStream);
+
+	/* Make sure there's space for termination character */
+	if(ui32Space > 0)
+	{
+		ui32Space--;
+	}
+	else
+	{
+		PVR_DPF((PVR_DBG_ERROR, "DBGDrivInvalidateStream: Buffer full."));
+	}
+
+	while((pszErrorMsg[ui32Off] != 0) && (ui32Off < ui32Space))
+	{
+		pui8Buffer[ui32WPtr] = (IMG_UINT8)pszErrorMsg[ui32Off];
+		ui32Off++;
+		ui32WPtr++;
+	}
+	pui8Buffer[ui32WPtr++] = '\0';
+	psStream->ui32WPtr = ui32WPtr;
+
+	/* Buffer will accept no more params from Services/client driver */
+	psStream->psCtrl->ui32Flags |= DEBUG_FLAGS_READONLY;
+}
+
+/*!****************************************************************************
+ @name		InvalidateAllStreams
+ @brief		invalidate all streams in list
+ @return	none
+*****************************************************************************/
+static IMG_VOID InvalidateAllStreams(IMG_VOID)
+{
+	PDBG_STREAM psStream = g_psStreamList;
+	while (psStream != IMG_NULL)
+	{
+		DBGDrivInvalidateStream(psStream);
+		psStream = psStream->psNext;
+	}
+	return;
+}
+
+
+
+/*!****************************************************************************
+ @name		DBGDrivWriteStringCM
+ @brief		Write capture mode data, wraps DBGDrivWriteString
+ @param		psStream - stream
+ @param		pszString - input buffer
+ @param		ui32Level - debug level
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWriteStringCM(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Level)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Only write string if debug capture mode adds up...
+	*/
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED)
+	{
+		if	((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_ENABLESAMPLE) == 0)
+		{
+			return(0);
+		}
+	}
+	else
+	{
+		if (psStream->psCtrl->ui32CapMode == DEBUG_CAPMODE_HOTKEY)
+		{
+			if ((psStream->psCtrl->ui32Current != g_ui32HotKeyFrame) || (g_bHotKeyPressed == IMG_FALSE))
+			{
+				return(0);
+			}
+		}
+	}
+
+	return(DBGDrivWriteString(psStream,pszString,ui32Level));
+
+}
+
+/*!****************************************************************************
+ @name		DBGDrivWriteString
+ @brief		Write string to stream (note stream buffer size is assumed fixed)
+ @param		psStream - stream
+ @param		pszString - string to write
+ @param		ui32Level - verbosity level
+ @return	-1; invalid stream
+ 			0;	other error (e.g. stream not enabled)
+ 			else number of characters written
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWriteString(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32	ui32Len;
+	IMG_UINT32	ui32Space;
+	IMG_UINT32	ui32WPtr;
+	IMG_UINT8 *	pui8Buffer;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Check debug level.
+	*/
+	if ((psStream->psCtrl->ui32DebugLevel & ui32Level) == 0)
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Output to standard debug out ? (don't if async out
+		flag is set).
+	*/
+	if ((psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_ASYNC) == 0)
+	{
+		if (psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_STANDARDDBG)
+		{
+			PVR_DPF((PVR_DBG_MESSAGE,"%s: %s\r\n",psStream->szName, pszString));
+		}
+
+		/*
+			Output to mono monitor ?
+		*/
+		if (psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_MONO)
+		{
+			MonoOut(psStream->szName,IMG_FALSE);
+			MonoOut(": ",IMG_FALSE);
+			MonoOut(pszString,IMG_TRUE);
+		}
+	}
+
+	/*
+		Don't bother writing the string if it's not flagged
+	*/
+	if	(
+			!(
+				((psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_STREAMENABLE) != 0) ||
+				((psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_ASYNC) != 0)
+			)
+		)
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		How much space have we got in the buffer ?
+	*/
+	ui32Space=SpaceInStream(psStream);
+
+	/* Make sure there's space for termination character */
+	if(ui32Space > 0)
+	{
+		ui32Space--;
+	}
+
+	ui32Len		= 0;
+	ui32WPtr	= psStream->ui32WPtr;
+	pui8Buffer	= (IMG_UINT8 *) psStream->pvBase;
+
+	while((pszString[ui32Len] != 0) && (ui32Len < ui32Space))
+	{
+		pui8Buffer[ui32WPtr] = (IMG_UINT8)pszString[ui32Len];
+		ui32Len++;
+		ui32WPtr++;
+		if (ui32WPtr == psStream->ui32Size)
+		{
+			ui32WPtr = 0;
+		}
+	}
+
+	if (ui32Len < ui32Space)
+	{
+		/* copy terminator */
+		pui8Buffer[ui32WPtr] = (IMG_UINT8)pszString[ui32Len];
+		ui32Len++;
+		ui32WPtr++;
+		if (ui32WPtr == psStream->ui32Size)
+		{
+			ui32WPtr = 0;
+		}
+
+		/* Write pointer, and length */
+		psStream->ui32WPtr = ui32WPtr;
+		psStream->ui32DataWritten+= ui32Len;
+	} else
+	{
+		ui32Len = 0;
+	}
+
+#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
+	if (ui32Len)
+	{
+		HostSignalEvent(DBG_EVENT_STREAM_DATA);
+	}
+#endif
+
+	return(ui32Len);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivReadString
+ @brief		Reads string from debug stream
+ @param		psStream - stream
+ @param		pszString - string to read
+ @param		ui32Limit - max size to read
+ @return	-1; invalid stream
+ 			0;	other error (e.g. stream not enabled)
+ 			else number of characters read
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivReadString(PDBG_STREAM psStream,IMG_CHAR * pszString,IMG_UINT32 ui32Limit)
+{
+	IMG_UINT32				ui32OutLen;
+	IMG_UINT32				ui32Len;
+	IMG_UINT32				ui32Offset;
+	IMG_UINT8				*pui8Buff;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForRead(psStream))
+	{
+		return(0);
+	}
+
+	/*
+		Stream appears to be in list so carry on.
+	*/
+	pui8Buff = (IMG_UINT8 *)psStream->pvBase;
+	ui32Offset = psStream->ui32RPtr;
+
+	if (psStream->ui32RPtr == psStream->ui32WPtr)
+	{
+		return(0);
+	}
+
+	/*
+		Find length of string.
+	*/
+	ui32Len = 0;
+	while((pui8Buff[ui32Offset] != 0) && (ui32Offset != psStream->ui32WPtr))
+	{
+		ui32Offset++;
+		ui32Len++;
+
+		/*
+			Reset offset if buffer wrapped.
+		*/
+		if (ui32Offset == psStream->ui32Size)
+		{
+			ui32Offset = 0;
+		}
+	}
+
+	ui32OutLen = ui32Len + 1;
+
+	/*
+		Only copy string if target has enough space.
+	*/
+	if (ui32Len > ui32Limit)
+	{
+		return(0);
+	}
+
+	/*
+		Copy it.
+	*/
+	ui32Offset = psStream->ui32RPtr;
+	ui32Len = 0;
+
+	while ((pui8Buff[ui32Offset] != 0) && (ui32Len < ui32Limit))
+	{
+		pszString[ui32Len] = (IMG_CHAR)pui8Buff[ui32Offset];
+		ui32Offset++;
+		ui32Len++;
+
+		/*
+			If wrap as necessary
+		*/
+		if (ui32Offset == psStream->ui32Size)
+		{
+			ui32Offset = 0;
+		}
+	}
+
+	pszString[ui32Len] = (IMG_CHAR)pui8Buff[ui32Offset];
+
+	psStream->ui32RPtr = ui32Offset + 1;
+
+	if (psStream->ui32RPtr == psStream->ui32Size)
+	{
+		psStream->ui32RPtr = 0;
+	}
+
+	return(ui32OutLen);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivWrite
+ @brief		Write binary buffer to stream (fixed size)
+ @param		psStream - stream
+ @param		pui8InBuf - buffer to write
+ @param		ui32InBuffSize - size
+ @param		ui32Level - verbosity level
+ @return	bytes written, 0 if recoverable error, -1 if unrecoverable error
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWrite(PDBG_STREAM psMainStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	IMG_UINT32				ui32Space;
+	DBG_STREAM *psStream;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psMainStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Check debug level.
+	*/
+	if ((psMainStream->psCtrl->ui32DebugLevel & ui32Level) == 0)
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Only write data if debug mode adds up...
+	*/
+	if (psMainStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED)
+	{
+		if	((psMainStream->psCtrl->ui32Flags & DEBUG_FLAGS_ENABLESAMPLE) == 0)
+		{
+			/* throw away non-capturing data */
+			return(ui32InBuffSize);
+		}
+	}
+	else if (psMainStream->psCtrl->ui32CapMode == DEBUG_CAPMODE_HOTKEY)
+	{
+		if ((psMainStream->psCtrl->ui32Current != g_ui32HotKeyFrame) || (g_bHotKeyPressed == IMG_FALSE))
+		{
+			/* throw away non-capturing data */
+			return(ui32InBuffSize);
+		}
+	}
+
+	if(psMainStream->psCtrl->bInitPhaseComplete)
+	{
+		psStream = psMainStream;
+	}
+	else
+	{
+		psStream = psMainStream->psInitStream;
+	}
+
+	/*
+		How much space have we got in the buffer ?
+	*/
+	ui32Space=SpaceInStream(psStream);
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "Recv %d b for %s: Roff = %x, WOff = %x",
+			ui32InBuffSize,
+			psStream->szName,
+			psStream->ui32RPtr,
+			psStream->ui32WPtr));
+
+	/*
+		Don't copy anything if we don't have space or buffers not enabled.
+	*/
+	if ((psStream->psCtrl->ui32OutMode & DEBUG_OUTMODE_STREAMENABLE) == 0)
+	{
+		PVR_DPF((PVR_DBG_ERROR, "DBGDrivWrite: buffer %x is disabled", (IMG_UINTPTR_T) psStream));
+		return(0);
+	}
+
+	if (ui32Space < 8)
+	{
+		PVR_DPF((PVR_DBG_ERROR, "DBGDrivWrite: buffer %x is full", (IMG_UINTPTR_T) psStream));
+		return(0);
+	}
+
+	/*
+		Only copy what we can..
+	*/
+	if (ui32Space <= (ui32InBuffSize + 4))
+	{
+		ui32InBuffSize = ui32Space - 8;
+	}
+
+	/*
+		Write the stuff...
+	*/
+	Write(psStream,(IMG_UINT8 *) &ui32InBuffSize,4);
+	Write(psStream,pui8InBuf,ui32InBuffSize);
+
+#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
+	if (ui32InBuffSize)
+	{
+		HostSignalEvent(DBG_EVENT_STREAM_DATA);
+	}
+#endif
+	return(ui32InBuffSize);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivWriteCM
+ @brief		Write capture mode data, wraps DBGDrivWrite
+ @param		psStream - stream
+ @param		pui8InBuf - input buffer
+ @param		ui32InBuffSize - buffer size
+ @param		ui32Level - verbosity level
+ @return	bytes written, 0 if recoverable error, -1 if unrecoverable error
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWriteCM(PDBG_STREAM psStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Only write data if debug mode adds up...
+	*/
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED)
+	{
+		if	((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_ENABLESAMPLE) == 0)
+		{
+			/* throw away non-capturing data */
+			return(ui32InBuffSize);
+		}
+	}
+	else
+	{
+		if (psStream->psCtrl->ui32CapMode == DEBUG_CAPMODE_HOTKEY)
+		{
+			if ((psStream->psCtrl->ui32Current != g_ui32HotKeyFrame) || (g_bHotKeyPressed == IMG_FALSE))
+			{
+				/* throw away non-capturing data */
+				return(ui32InBuffSize);
+			}
+		}
+	}
+
+	return(DBGDrivWrite2(psStream,pui8InBuf,ui32InBuffSize,ui32Level));
+}
+
+
+/*!****************************************************************************
+ @name		DBGDrivWritePersist
+ @brief		Copies data from a buffer into selected stream's init phase. Stream size should be expandable.
+ @param		psStream - stream for output
+ @param		pui8InBuf - input buffer
+ @param		ui32InBuffSize - size of input
+ @param		ui32Level - not used
+ @return	bytes copied, 0 if recoverable error, -1 if unrecoverable error
+*****************************************************************************/
+static IMG_UINT32 DBGDrivWritePersist(PDBG_STREAM psMainStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	DBG_STREAM	*psStream;
+	PVR_UNREFERENCED_PARAMETER(ui32Level);
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psMainStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/* Always append persistent data to init phase so it's available on
+	 * subsequent app runs.
+	*/
+	psStream = psMainStream->psInitStream;
+	if(psStream->bCircularAllowed == IMG_TRUE)
+	{
+		PVR_DPF((PVR_DBG_WARNING, "DBGDrivWritePersist: Init phase is a circular buffer, some data may be lost"));
+	}
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "Append %x b to %s: Roff = %x, WOff = %x [bw = %x]",
+			ui32InBuffSize,
+			psStream->szName,
+			psStream->ui32RPtr,
+			psStream->ui32WPtr,
+			psStream->ui32DataWritten));
+
+	return( WriteExpandingBuffer(psStream, pui8InBuf, ui32InBuffSize) );
+}
+
+/*!****************************************************************************
+ @name		DBGDrivWrite2
+ @brief		Copies data from a buffer into selected (expandable) stream.
+ @param		psMainStream - stream for output
+ @param		pui8InBuf - input buffer
+ @param		ui32InBuffSize - size of input
+ @param		ui32Level - debug level of input
+ @return	bytes copied, 0 if recoverable error, -1 if unrecoverable error
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWrite2(PDBG_STREAM psMainStream,IMG_UINT8 * pui8InBuf,IMG_UINT32 ui32InBuffSize,IMG_UINT32 ui32Level)
+{
+	DBG_STREAM	*psStream;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psMainStream))
+	{
+		PVR_DPF((PVR_DBG_ERROR, "DBGDrivWrite2: stream not valid"));
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Check debug level.
+	*/
+	if ((psMainStream->psCtrl->ui32DebugLevel & ui32Level) == 0)
+	{
+		return(0);
+	}
+
+	if(psMainStream->psCtrl->bInitPhaseComplete)
+	{
+		psStream = psMainStream;
+	}
+	else
+	{
+		psStream = psMainStream->psInitStream;
+	}
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "Recv(exp) %d b for %s: Roff = %x, WOff = %x",
+			ui32InBuffSize,
+			psStream->szName,
+			psStream->ui32RPtr,
+			psStream->ui32WPtr));
+
+	return( WriteExpandingBuffer(psStream, pui8InBuf, ui32InBuffSize) );
+}
+
+/*!****************************************************************************
+ @name		DBGDrivRead
+ @brief		Read from debug driver buffers
+ @param		psMainStream - stream
+ @param		bReadInitBuffer - whether to read from the init stream or the main stream
+ @param		ui32OutBuffSize - available space in client buffer
+ @param		pui8OutBuf - output buffer
+ @return	bytes read, 0 if failure occurred
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivRead(PDBG_STREAM psMainStream, IMG_BOOL bReadInitBuffer, IMG_UINT32 ui32OutBuffSize,IMG_UINT8 * pui8OutBuf)
+{
+	IMG_UINT32 ui32Data;
+	DBG_STREAM *psStream;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForRead(psMainStream))
+	{
+		PVR_DPF((PVR_DBG_ERROR, "DBGDrivRead: buffer %x is invalid", (IMG_UINTPTR_T) psMainStream));
+		return(0);
+	}
+
+	if(bReadInitBuffer)
+	{
+		psStream = psMainStream->psInitStream;
+	}
+	else
+	{
+		psStream = psMainStream;
+	}
+
+	/* Don't read beyond the init phase marker point */
+	if (psStream->ui32RPtr == psStream->ui32WPtr ||
+		((psStream->ui32InitPhaseWOff > 0) &&
+		 (psStream->ui32RPtr >= psStream->ui32InitPhaseWOff)) )
+	{
+		return(0);
+	}
+
+	/*
+		Get amount of data in buffer.
+	*/
+	if (psStream->ui32RPtr <= psStream->ui32WPtr)
+	{
+		ui32Data = psStream->ui32WPtr - psStream->ui32RPtr;
+	}
+	else
+	{
+		ui32Data = psStream->ui32WPtr + (psStream->ui32Size - psStream->ui32RPtr);
+	}
+
+	/*
+		Don't read beyond the init phase marker point
+	*/
+	if ((psStream->ui32InitPhaseWOff > 0) &&
+		(psStream->ui32InitPhaseWOff < psStream->ui32WPtr))
+	{
+		ui32Data = psStream->ui32InitPhaseWOff - psStream->ui32RPtr;
+	}
+
+	/*
+		Only transfer what target buffer can handle.
+	*/
+	if (ui32Data > ui32OutBuffSize)
+	{
+		ui32Data = ui32OutBuffSize;
+	}
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "Send %x b from %s: Roff = %x, WOff = %x",
+			ui32Data,
+			psStream->szName,
+			psStream->ui32RPtr,
+			psStream->ui32WPtr));
+
+	/*
+		Split copy into two bits as necessay.
+	*/
+	if ((psStream->ui32RPtr + ui32Data) > psStream->ui32Size)
+	{	/* Calc block 1 and block 2 sizes */
+		IMG_UINT32 ui32B1 = psStream->ui32Size - psStream->ui32RPtr;
+		IMG_UINT32 ui32B2 = ui32Data - ui32B1;
+
+		/* Copy up to end of circular buffer */
+		HostMemCopy((IMG_VOID *) pui8OutBuf,
+				(IMG_VOID *)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32RPtr),
+				ui32B1);
+
+		/* Copy from start of circular buffer */
+		HostMemCopy((IMG_VOID *)(pui8OutBuf + ui32B1),
+				psStream->pvBase,
+				ui32B2);
+
+		/* Update read pointer now that we've copied the data out */
+		psStream->ui32RPtr = ui32B2;
+	}
+	else
+	{	/* Copy data from wherever */
+		HostMemCopy((IMG_VOID *) pui8OutBuf,
+				(IMG_VOID *)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32RPtr),
+				ui32Data);
+
+		/* Update read pointer now that we've copied the data out */
+		psStream->ui32RPtr += ui32Data;
+
+		/* Check for wrapping */
+		if (psStream->ui32RPtr == psStream->ui32Size)
+		{
+			psStream->ui32RPtr = 0;
+		}
+	}
+
+	return(ui32Data);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetCaptureMode
+ @brief		Set capture mode
+ @param		psStream - stream
+ @param		ui32Mode - capturing mode
+ @param		ui32Start - start frame (frame mode only)
+ @param		ui32End - end frame (frame mode)
+ @param		ui32SampleRate - sampling frequency (frame mode)
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivSetCaptureMode(PDBG_STREAM psStream,IMG_UINT32 ui32Mode,IMG_UINT32 ui32Start,IMG_UINT32 ui32End,IMG_UINT32 ui32SampleRate)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32CapMode = ui32Mode;
+	psStream->psCtrl->ui32DefaultMode = ui32Mode;
+	psStream->psCtrl->ui32Start = ui32Start;
+	psStream->psCtrl->ui32End = ui32End;
+	psStream->psCtrl->ui32SampleRate = ui32SampleRate;
+
+	/*
+		Activate hotkey it the stream is of this type.
+	*/
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_HOTKEY)
+	{
+		ActivateHotKeys(psStream);
+	}
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetOutputMode
+ @brief		Change output mode
+ @param		psStream - stream
+ @param		ui32OutMode - output mode
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivSetOutputMode(PDBG_STREAM psStream,IMG_UINT32 ui32OutMode)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32OutMode = ui32OutMode;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetDebugLevel
+ @brief		Change debug level
+ @param		psStream - stream
+ @param		ui32DebugLevel - verbosity level
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivSetDebugLevel(PDBG_STREAM psStream,IMG_UINT32 ui32DebugLevel)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32DebugLevel = ui32DebugLevel;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetFrame
+ @brief		Advance frame counter
+ @param		psStream - stream
+ @param		ui32Frame - frame number
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivSetFrame(PDBG_STREAM psStream,IMG_UINT32 ui32Frame)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32Current = ui32Frame;
+
+	if ((ui32Frame >= psStream->psCtrl->ui32Start) &&
+		(ui32Frame <= psStream->psCtrl->ui32End) &&
+		(((ui32Frame - psStream->psCtrl->ui32Start) % psStream->psCtrl->ui32SampleRate) == 0))
+	{
+		psStream->psCtrl->ui32Flags |= DEBUG_FLAGS_ENABLESAMPLE;
+	}
+	else
+	{
+		psStream->psCtrl->ui32Flags &= ~DEBUG_FLAGS_ENABLESAMPLE;
+	}
+
+	if (g_bHotkeyMiddump)
+	{
+		if ((ui32Frame >= g_ui32HotkeyMiddumpStart) &&
+			(ui32Frame <= g_ui32HotkeyMiddumpEnd) &&
+			(((ui32Frame - g_ui32HotkeyMiddumpStart) % psStream->psCtrl->ui32SampleRate) == 0))
+		{
+			psStream->psCtrl->ui32Flags |= DEBUG_FLAGS_ENABLESAMPLE;
+		}
+		else
+		{
+			psStream->psCtrl->ui32Flags &= ~DEBUG_FLAGS_ENABLESAMPLE;
+			if (psStream->psCtrl->ui32Current > g_ui32HotkeyMiddumpEnd)
+			{
+				g_bHotkeyMiddump = IMG_FALSE;
+			}
+		}
+	}
+
+	/* Check to see if hotkey press has been registered (from keyboard filter) */
+	if (g_bHotKeyRegistered)
+	{
+		g_bHotKeyRegistered = IMG_FALSE;
+
+		PVR_DPF((PVR_DBG_MESSAGE,"Hotkey pressed (%p)!\n",psStream));
+
+		if (!g_bHotKeyPressed)
+		{
+			/*
+				Capture the next frame.
+			*/
+			g_ui32HotKeyFrame = psStream->psCtrl->ui32Current + 2;
+
+			/*
+				Do the flag.
+			*/
+			g_bHotKeyPressed = IMG_TRUE;
+		}
+
+		/*
+			If in framed hotkey mode, then set start frame.
+		*/
+		if (((psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED) != 0) && 
+			((psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_HOTKEY) != 0))
+		{
+			if (!g_bHotkeyMiddump)
+			{
+				/* Turn on */
+				g_ui32HotkeyMiddumpStart = g_ui32HotKeyFrame + 1;
+				g_ui32HotkeyMiddumpEnd = 0xffffffff;
+				g_bHotkeyMiddump = IMG_TRUE;
+				PVR_DPF((PVR_DBG_MESSAGE,"Sampling every %d frame(s)\n", psStream->psCtrl->ui32SampleRate));
+			}
+			else
+			{
+				/* Turn off */
+				g_ui32HotkeyMiddumpEnd = g_ui32HotKeyFrame;
+				PVR_DPF((PVR_DBG_MESSAGE,"Turning off sampling\n"));
+			}
+		}
+
+	}
+
+	/*
+		Clear the hotkey frame indicator when over that frame.
+	*/
+	if (psStream->psCtrl->ui32Current > g_ui32HotKeyFrame)
+	{
+		g_bHotKeyPressed = IMG_FALSE;
+	}
+}
+
+/*!****************************************************************************
+ @name		DBGDrivGetFrame
+ @brief		Retrieve current frame number
+ @param		psStream - stream
+ @return	frame number
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivGetFrame(PDBG_STREAM psStream)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return(0);
+	}
+
+	return(psStream->psCtrl->ui32Current);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivIsLastCaptureFrame
+ @brief		Is this the last frame to be captured?
+ @param		psStream - stream
+ @return	true if last capture frame, false otherwise
+*****************************************************************************/
+IMG_BOOL IMG_CALLCONV DBGDrivIsLastCaptureFrame(PDBG_STREAM psStream)
+{
+	IMG_UINT32	ui32NextFrame;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return IMG_FALSE;
+	}
+
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED)
+	{
+		ui32NextFrame = psStream->psCtrl->ui32Current + psStream->psCtrl->ui32SampleRate;
+		if (ui32NextFrame > psStream->psCtrl->ui32End)
+		{
+			return IMG_TRUE;
+		}
+	}
+	return IMG_FALSE;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivIsCaptureFrame
+ @brief		Is this a capture frame?
+ @param		psStream - stream
+ @param		bCheckPreviousFrame - set if it needs to be 1 frame ahead
+ @return	true if capturing this frame, false otherwise
+*****************************************************************************/
+IMG_BOOL IMG_CALLCONV DBGDrivIsCaptureFrame(PDBG_STREAM psStream, IMG_BOOL bCheckPreviousFrame)
+{
+	IMG_UINT32 ui32FrameShift = bCheckPreviousFrame ? 1UL : 0UL;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return IMG_FALSE;
+	}
+
+	if (psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED)
+	{
+		/* Needs to be one frame ahead, so disppatch can turn everything on */
+		if (g_bHotkeyMiddump)
+		{
+			if ((psStream->psCtrl->ui32Current >= (g_ui32HotkeyMiddumpStart - ui32FrameShift)) &&
+				(psStream->psCtrl->ui32Current <= (g_ui32HotkeyMiddumpEnd - ui32FrameShift)) &&
+				((((psStream->psCtrl->ui32Current + ui32FrameShift) - g_ui32HotkeyMiddumpStart) % psStream->psCtrl->ui32SampleRate) == 0))
+			{
+				return IMG_TRUE;
+			}
+		}
+		else
+		{
+			if ((psStream->psCtrl->ui32Current >= (psStream->psCtrl->ui32Start - ui32FrameShift)) &&
+				(psStream->psCtrl->ui32Current <= (psStream->psCtrl->ui32End - ui32FrameShift)) &&
+				((((psStream->psCtrl->ui32Current + ui32FrameShift) - psStream->psCtrl->ui32Start) % psStream->psCtrl->ui32SampleRate) == 0))
+			{
+				return IMG_TRUE;
+			}
+		}
+	}
+	else if (psStream->psCtrl->ui32CapMode == DEBUG_CAPMODE_HOTKEY)
+	{
+		if ((psStream->psCtrl->ui32Current == (g_ui32HotKeyFrame-ui32FrameShift)) && (g_bHotKeyPressed))
+		{
+			return IMG_TRUE;
+		}
+	}
+	return IMG_FALSE;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivOverrideMode
+ @brief		Override capture mode
+ @param		psStream - stream
+ @param		ui32Mode - capture mode
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivOverrideMode(PDBG_STREAM psStream,IMG_UINT32 ui32Mode)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32CapMode = ui32Mode;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivDefaultMode
+ @param		psStream - stream
+ @return	none
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivDefaultMode(PDBG_STREAM psStream)
+{
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->psCtrl->ui32CapMode = psStream->psCtrl->ui32DefaultMode;
+}
+
+/*!****************************************************************************
+ @name	 	DBGDrivSetClientMarker
+ @brief 	Sets the marker to prevent reading initphase beyond data on behalf of previous app
+ @param		psStream - stream
+ @param		ui32Marker - byte offset in init buffer
+ @return	nothing
+*****************************************************************************/
+IMG_VOID IMG_CALLCONV DBGDrivSetClientMarker(PDBG_STREAM psStream, IMG_UINT32 ui32Marker)
+{
+	/*
+		Validate buffer
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->ui32InitPhaseWOff = ui32Marker;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetMarker
+ @brief		Sets the marker in the stream to split output files
+ @param		psStream, ui32Marker
+ @return	nothing
+*****************************************************************************/
+void IMG_CALLCONV DBGDrivSetMarker(PDBG_STREAM psStream, IMG_UINT32 ui32Marker)
+{
+	/*
+		Validate buffer
+	*/
+	if (!StreamValid(psStream))
+	{
+		return;
+	}
+
+	psStream->ui32Marker = ui32Marker;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivGetMarker
+ @brief 	Gets the marker in the stream to split output files
+ @param	 	psStream - stream
+ @return	marker offset
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivGetMarker(PDBG_STREAM psStream)
+{
+	/*
+		Validate buffer
+	*/
+	if (!StreamValid(psStream))
+	{
+		return 0;
+	}
+
+	return psStream->ui32Marker;
+}
+
+
+/*!****************************************************************************
+ @name		DBGDrivGetStreamOffset
+ @brief		Gets the amount of data written to the stream
+ @param		psMainStream - stream
+ @return	bytes written
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivGetStreamOffset(PDBG_STREAM psMainStream)
+{
+	PDBG_STREAM psStream;
+
+	/*
+		Validate buffer
+	*/
+	if (!StreamValid(psMainStream))
+	{
+		return 0;
+	}
+
+	if(psMainStream->psCtrl->bInitPhaseComplete)
+	{
+		psStream = psMainStream;
+	}
+	else
+	{
+		psStream = psMainStream->psInitStream;
+	}
+
+	return psStream->ui32DataWritten;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivSetStreamOffset
+ @brief		Sets the amount of data written to the stream
+ @param		psMainStream - stream
+ @param		ui32StreamOffset - stream offset
+ @return	Nothing
+*****************************************************************************/
+IMG_VOID IMG_CALLCONV DBGDrivSetStreamOffset(PDBG_STREAM psMainStream, IMG_UINT32 ui32StreamOffset)
+{
+	PDBG_STREAM psStream;
+
+	/*
+		Validate buffer
+	*/
+	if (!StreamValid(psMainStream))
+	{
+		return;
+	}
+
+	if(psMainStream->psCtrl->bInitPhaseComplete)
+	{
+		psStream = psMainStream;
+	}
+	else
+	{
+		psStream = psMainStream->psInitStream;
+	}
+
+	PVR_DPF((PVR_DBGDRIV_MESSAGE, "DBGDrivSetStreamOffset: %s set to %x b",
+			psStream->szName,
+			ui32StreamOffset));
+	psStream->ui32DataWritten = ui32StreamOffset;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivGetServiceTable
+ @brief		get jump table for Services driver
+ @return	pointer to jump table
+*****************************************************************************/
+IMG_PVOID IMG_CALLCONV DBGDrivGetServiceTable(IMG_VOID)
+{
+	return((IMG_PVOID)&g_sDBGKMServices);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivWriteLF
+ @brief		Store data that should only be kept from the last frame dumped
+ @param		psStream - stream
+ @param		pui8InBuf - input buffer
+ @param		ui32InBuffSize - size
+ @param		ui32Level - verbosity level
+ @param		ui32Flags - flags
+ @return	bytes written
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivWriteLF(PDBG_STREAM psStream, IMG_UINT8 * pui8InBuf, IMG_UINT32 ui32InBuffSize, IMG_UINT32 ui32Level, IMG_UINT32 ui32Flags)
+{
+	PDBG_LASTFRAME_BUFFER	psLFBuffer;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForWrite(psStream))
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Check debug level.
+	*/
+	if ((psStream->psCtrl->ui32DebugLevel & ui32Level) == 0)
+	{
+		return(0xFFFFFFFFUL);
+	}
+
+	/*
+		Only write data if debug mode adds up...
+	*/
+	if ((psStream->psCtrl->ui32CapMode & DEBUG_CAPMODE_FRAMED) != 0)
+	{
+		if	((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_ENABLESAMPLE) == 0)
+		{
+			/* throw away non-capturing data */
+			return(ui32InBuffSize);
+		}
+	}
+	else if (psStream->psCtrl->ui32CapMode == DEBUG_CAPMODE_HOTKEY)
+	{
+		if ((psStream->psCtrl->ui32Current != g_ui32HotKeyFrame) || (g_bHotKeyPressed == IMG_FALSE))
+		{
+			/* throw away non-capturing data */
+			return(ui32InBuffSize);
+		}
+	}
+
+	psLFBuffer = FindLFBuf(psStream);
+
+	if (ui32Flags & WRITELF_FLAGS_RESETBUF)
+	{
+		/*
+			Copy the data into the buffer
+		*/
+		ui32InBuffSize = (ui32InBuffSize > LAST_FRAME_BUF_SIZE) ? LAST_FRAME_BUF_SIZE : ui32InBuffSize;
+		HostMemCopy((IMG_VOID *)psLFBuffer->ui8Buffer, (IMG_VOID *)pui8InBuf, ui32InBuffSize);
+		psLFBuffer->ui32BufLen = ui32InBuffSize;
+	}
+	else
+	{
+		/*
+			Append the data to the end of the buffer
+		*/
+		ui32InBuffSize = ((psLFBuffer->ui32BufLen + ui32InBuffSize) > LAST_FRAME_BUF_SIZE) ? (LAST_FRAME_BUF_SIZE - psLFBuffer->ui32BufLen) : ui32InBuffSize;
+		HostMemCopy((IMG_VOID *)(&psLFBuffer->ui8Buffer[psLFBuffer->ui32BufLen]), (IMG_VOID *)pui8InBuf, ui32InBuffSize);
+		psLFBuffer->ui32BufLen += ui32InBuffSize;
+	}
+
+	return(ui32InBuffSize);
+}
+
+/*!****************************************************************************
+ @name		DBGDrivReadLF
+ @brief		Read data that should only be kept from the last frame dumped
+ @param		psStream - stream
+ @param		ui32OutBuffSize - buffer size
+ @param		pui8OutBuf - output buffer
+ @return	bytes read
+*****************************************************************************/
+IMG_UINT32 IMG_CALLCONV DBGDrivReadLF(PDBG_STREAM psStream, IMG_UINT32 ui32OutBuffSize, IMG_UINT8 * pui8OutBuf)
+{
+	PDBG_LASTFRAME_BUFFER	psLFBuffer;
+	IMG_UINT32	ui32Data;
+
+	/*
+		Validate buffer.
+	*/
+	if (!StreamValidForRead(psStream))
+	{
+		return(0);
+	}
+
+	psLFBuffer = FindLFBuf(psStream);
+
+	/*
+		Get amount of data to copy
+	*/
+	ui32Data = (ui32OutBuffSize < psLFBuffer->ui32BufLen) ? ui32OutBuffSize : psLFBuffer->ui32BufLen;
+
+	/*
+		Copy the data into the buffer
+	*/
+	HostMemCopy((IMG_VOID *)pui8OutBuf, (IMG_VOID *)psLFBuffer->ui8Buffer, ui32Data);
+
+	return ui32Data;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivStartInitPhase
+ @brief		Marks start of init phase
+ @param		psStream - stream
+ @return	void
+*****************************************************************************/
+IMG_VOID IMG_CALLCONV DBGDrivStartInitPhase(PDBG_STREAM psStream)
+{
+	psStream->psCtrl->bInitPhaseComplete = IMG_FALSE;
+}
+
+/*!****************************************************************************
+ @name		DBGDrivStopInitPhase
+ @brief		Marks end of init phase
+ @param		psStream - stream
+ @return	void
+*****************************************************************************/
+IMG_VOID IMG_CALLCONV DBGDrivStopInitPhase(PDBG_STREAM psStream)
+{
+	psStream->psCtrl->bInitPhaseComplete = IMG_TRUE;
+}
+
+#if defined(SUPPORT_DBGDRV_EVENT_OBJECTS)
+/*!****************************************************************************
+ @name		DBGDrivWaitForEvent
+ @brief		waits for an event
+ @param		eEvent - debug driver event
+ @return	void
+*****************************************************************************/
+IMG_VOID IMG_CALLCONV DBGDrivWaitForEvent(DBG_EVENT eEvent)
+{
+	HostWaitForEvent(eEvent);
+}
+#endif
+
+/*!****************************************************************************
+ @name		ExpandStreamBuffer
+ @brief		allocates a new buffer when the current one is full
+ @param		psStream - stream
+ @param		ui32NewSize - new size
+ @return	IMG_TRUE - if allocation succeeded, IMG_FALSE - if not
+*****************************************************************************/
+IMG_BOOL ExpandStreamBuffer(PDBG_STREAM psStream, IMG_UINT32 ui32NewSize)
+{
+	IMG_VOID *	pvNewBuf;
+	IMG_UINT32	ui32NewSizeInPages;
+	IMG_UINT32	ui32NewWOffset;
+	IMG_UINT32	ui32NewROffset;
+	IMG_UINT32	ui32SpaceInOldBuf;
+
+	/* 
+		First check new size is bigger than existing size 
+	*/
+	if (psStream->ui32Size >= ui32NewSize)
+	{
+		return IMG_FALSE;
+	}
+
+	/*
+		Calc space in old buffer 
+	*/
+	ui32SpaceInOldBuf = SpaceInStream(psStream);
+
+	/*
+		Allocate new buffer 
+	*/
+	ui32NewSizeInPages = ((ui32NewSize + 0xfffUL) & ~0xfffUL) / 4096UL;
+
+	if ((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+	{
+		pvNewBuf = HostNonPageablePageAlloc(ui32NewSizeInPages);
+	}
+	else
+	{
+		pvNewBuf = HostPageablePageAlloc(ui32NewSizeInPages);
+	}
+
+	if (pvNewBuf == IMG_NULL)
+	{
+		return IMG_FALSE;
+	}
+
+	if(psStream->bCircularAllowed)
+	{
+		/*
+			Copy over old buffer to new one, we place data at start of buffer
+			even if Read offset is not at start of buffer
+		*/
+		if (psStream->ui32RPtr <= psStream->ui32WPtr)
+		{
+			/*
+				No wrapping of data so copy data to start of new buffer 
+			*/
+		HostMemCopy(pvNewBuf,
+					(IMG_VOID *)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32RPtr),
+					psStream->ui32WPtr - psStream->ui32RPtr);
+		}
+		else
+		{
+			IMG_UINT32	ui32FirstCopySize;
+	
+			/*
+				The data has wrapped around the buffer, copy beginning of buffer first 
+			*/
+			ui32FirstCopySize = psStream->ui32Size - psStream->ui32RPtr;
+	
+			HostMemCopy(pvNewBuf,
+					(IMG_VOID *)((IMG_UINTPTR_T)psStream->pvBase + psStream->ui32RPtr),
+					ui32FirstCopySize);
+	
+			/*
+				Now second half 
+			*/
+			HostMemCopy((IMG_VOID *)((IMG_UINTPTR_T)pvNewBuf + ui32FirstCopySize),
+					(IMG_VOID *)(IMG_PBYTE)psStream->pvBase,
+					psStream->ui32WPtr);
+		}
+		ui32NewROffset = 0;
+	}
+	else
+	{
+		/* Copy everything in the old buffer to the new one */
+		HostMemCopy(pvNewBuf, psStream->pvBase,	psStream->ui32WPtr);
+		ui32NewROffset = psStream->ui32RPtr;
+	}
+
+	/*
+		New Write offset is at end of data 
+	*/                                                        
+	ui32NewWOffset = psStream->ui32Size - ui32SpaceInOldBuf;
+
+	/*
+		Free old buffer 
+	*/
+	if ((psStream->psCtrl->ui32Flags & DEBUG_FLAGS_USE_NONPAGED_MEM) != 0)
+	{
+		HostNonPageablePageFree(psStream->pvBase);
+	}
+	else
+	{
+		HostPageablePageFree(psStream->pvBase);
+	}
+
+	/*
+		Now set new params up 
+	*/
+	psStream->pvBase = pvNewBuf;
+	psStream->ui32RPtr = ui32NewROffset;
+	psStream->ui32WPtr = ui32NewWOffset;
+	psStream->ui32Size = ui32NewSizeInPages * 4096;
+
+	return IMG_TRUE;
+}
+
+/*!****************************************************************************
+ @name		SpaceInStream
+ @brief		remaining space in stream
+ @param		psStream - stream
+ @return	bytes remaining
+*****************************************************************************/
+IMG_UINT32 SpaceInStream(PDBG_STREAM psStream)
+{
+	IMG_UINT32	ui32Space;
+
+	if (psStream->bCircularAllowed)
+	{
+		/* Allow overwriting the buffer which was already read */
+	if (psStream->ui32RPtr > psStream->ui32WPtr)
+	{
+		ui32Space = psStream->ui32RPtr - psStream->ui32WPtr;
+	}
+	else
+	{
+		ui32Space = psStream->ui32RPtr + (psStream->ui32Size - psStream->ui32WPtr);
+	}
+	}
+	else
+	{
+		/* Don't overwrite anything */
+		ui32Space = psStream->ui32Size - psStream->ui32WPtr;
+	}
+
+	return ui32Space;
+}
+
+
+/*!****************************************************************************
+ @name		DestroyAllStreams
+ @brief		delete all streams in list
+ @return	none
+*****************************************************************************/
+void DestroyAllStreams(void)
+{
+	while (g_psStreamList != IMG_NULL)
+	{
+		DBGDrivDestroyStream(g_psStreamList);
+	}
+	return;
+}
+
+/*!****************************************************************************
+ @name		FindLFBuf
+ @brief		finds last frame stream
+ @param		psStream - stream to find
+ @return	stream if found, NULL otherwise
+*****************************************************************************/
+PDBG_LASTFRAME_BUFFER FindLFBuf(PDBG_STREAM psStream)
+{
+	PDBG_LASTFRAME_BUFFER	psLFBuffer;
+
+	psLFBuffer = g_psLFBufferList;
+
+	while (psLFBuffer)
+	{
+		if (psLFBuffer->psStream == psStream)
+		{
+			break;
+		}
+
+		psLFBuffer = psLFBuffer->psNext;
+	}
+
+	return psLFBuffer;
+}
+
+/******************************************************************************
+ End of file (DBGDRIV.C)
+******************************************************************************/