/*************************************************************************/ /*!
@File           rgxsignals.c
@Title          RGX Signals routines
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    RGX Signals routines
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

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of this software and associated documentation files (the "Software"), to deal
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the GNU General Public License Version 2 ("GPL") in which case the provisions
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not delete the provisions above, a recipient may use your version of this file
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*/ /**************************************************************************/

#include "rgxsignals.h"

#include "rgxmem.h"
#include "rgx_fwif_km.h"
#include "mmu_common.h"
#include "devicemem.h"
#include "rgxfwutils.h"


IMG_EXPORT
PVRSRV_ERROR PVRSRVRGXNotifySignalUpdateKM(CONNECTION_DATA *psConnection,
	                                   PVRSRV_DEVICE_NODE	*psDeviceNode,
	                                   IMG_HANDLE hMemCtxPrivData,
	                                   IMG_DEV_VIRTADDR sDevSignalAddress)
{
	DEVMEM_MEMDESC *psFWMemContextMemDesc;
	RGXFWIF_KCCB_CMD sKCCBCmd;
	PVRSRV_ERROR eError;

	PVR_UNREFERENCED_PARAMETER(psConnection);

	psFWMemContextMemDesc = RGXGetFWMemDescFromMemoryContextHandle(hMemCtxPrivData);

	/* Schedule the firmware command */
	sKCCBCmd.eCmdType = RGXFWIF_KCCB_CMD_NOTIFY_SIGNAL_UPDATE;
	sKCCBCmd.uCmdData.sSignalUpdateData.sDevSignalAddress = sDevSignalAddress;
	RGXSetFirmwareAddress(&sKCCBCmd.uCmdData.sSignalUpdateData.psFWMemContext,
	                      psFWMemContextMemDesc,
	                      0, RFW_FWADDR_NOREF_FLAG);

	LOOP_UNTIL_TIMEOUT(MAX_HW_TIME_US)
	{
		eError = RGXScheduleCommand((PVRSRV_RGXDEV_INFO *)psDeviceNode->pvDevice,
		                            RGXFWIF_DM_GP,
		                            &sKCCBCmd,
		                            sizeof(sKCCBCmd),
		                            0,
		                            PDUMP_FLAGS_NONE);
		if (eError != PVRSRV_ERROR_RETRY)
		{
			break;
		}
		OSWaitus(MAX_HW_TIME_US/WAIT_TRY_COUNT);
	} END_LOOP_UNTIL_TIMEOUT();

	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"PVRSRVRGXNotifySignalUpdateKM: Failed to schedule the FW command %d (%s)",
				eError, PVRSRVGETERRORSTRING(eError)));
	}

	return eError;
}