/*************************************************************************/ /*!
@Title          Services kernel module internal header file
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@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
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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.

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the GNU General Public License Version 2 ("GPL") in which case the provisions
of GPL are applicable instead of those above.

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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
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*/ /**************************************************************************/

#ifndef SRVKM_H
#define SRVKM_H


#if defined(__cplusplus)
extern "C" {
#endif

	/**	Use PVR_DPF() unless message is necessary in release build
	 */
	#ifdef PVR_DISABLE_LOGGING
	#define PVR_LOG(X)
	#else
	/* PRQA S 3410 1 */ /* this macro requires no brackets in order to work */
	#define PVR_LOG(X)			PVRSRVReleasePrintf X;
	#endif

	IMG_IMPORT IMG_VOID IMG_CALLCONV PVRSRVReleasePrintf(const IMG_CHAR *pszFormat, ...) IMG_FORMAT_PRINTF(1, 2);

	IMG_IMPORT PVRSRV_ERROR IMG_CALLCONV PVRSRVProcessConnect(IMG_UINT32	ui32PID, IMG_UINT32 ui32Flags);
	IMG_IMPORT IMG_VOID IMG_CALLCONV PVRSRVProcessDisconnect(IMG_UINT32	ui32PID);

	IMG_IMPORT IMG_VOID PVRSRVScheduleDevicesKM(IMG_VOID);

	IMG_VOID IMG_CALLCONV PVRSRVSetDCState(IMG_UINT32 ui32State);

	PVRSRV_ERROR IMG_CALLCONV PVRSRVSaveRestoreLiveSegments(IMG_HANDLE hArena, IMG_PBYTE pbyBuffer, IMG_SIZE_T *puiBufSize, IMG_BOOL bSave);

	IMG_VOID PVRSRVScheduleDeviceCallbacks(IMG_VOID);


#if defined (__cplusplus)
}
#endif

/******************
HIGHER LEVEL MACROS
*******************/

/*----------------------------------------------------------------------------
Repeats the body of the loop for a certain minimum time, or until the body
exits by its own means (break, return, goto, etc.)

Example of usage:

LOOP_UNTIL_TIMEOUT(MAX_HW_TIME_US)
{
	if(psQueueInfo->ui32ReadOffset == psQueueInfo->ui32WriteOffset)
	{
		bTimeout = IMG_FALSE;
		break;
	}
	
	OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
} END_LOOP_UNTIL_TIMEOUT();

-----------------------------------------------------------------------------*/

/*	uiNotLastLoop will remain at 1 until the timeout has expired, at which time		
 * 	it will be decremented and the loop executed one final time. This is necessary
 *	when preemption is enabled. 
 */
/* PRQA S 3411,3431 12 */ /* critical format, leave alone */
#define LOOP_UNTIL_TIMEOUT(TIMEOUT) \
{\
	IMG_UINT32 uiOffset, uiStart, uiCurrent; \
	IMG_INT32 iNotLastLoop;					 \
	for(uiOffset = 0, uiStart = OSClockus(), uiCurrent = uiStart + 1, iNotLastLoop = 1;\
		((uiCurrent - uiStart + uiOffset) < (TIMEOUT)) || iNotLastLoop--;				\
		uiCurrent = OSClockus(),													\
		uiOffset = uiCurrent < uiStart ? IMG_UINT32_MAX - uiStart : uiOffset,		\
		uiStart = uiCurrent < uiStart ? 0 : uiStart)

#define END_LOOP_UNTIL_TIMEOUT() \
}

/*!
 ******************************************************************************

 @Function		PVRSRVGetErrorStringKM

 @Description	Returns a text string relating to the PVRSRV_ERROR enum.

 ******************************************************************************/
IMG_IMPORT
const IMG_CHAR *PVRSRVGetErrorStringKM(PVRSRV_ERROR eError);

#endif /* SRVKM_H */