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#include "mvCommon.h"  /* Should be included before mvSysHwConfig */
#include "mvTypes.h"
#include "mvDebug.h"
#include "mvOs.h"

#include "common/mvPp2Common.h"
#include "gbe/mvPp2Gbe.h"
#include "mvPp2DpiHw.h"

MV_PP2_QUEUE_CTRL *mvPp2DpiReqQ;
MV_PP2_QUEUE_CTRL *mvPp2DpiResQ;


void	mvPp2DpiInit(void)
{
	int i;

	/* Reset all counters */
	mvPp2WrReg(MV_PP2_DPI_INIT_REG, 1);

	/* Clear all counters control  registers */
	for (i = 0; i < MV_PP2_DPI_BYTE_VAL_MAX; i++)
		mvPp2DpiByteConfig(i, 0);

	/* Clear all counters window registers */
	for (i = 0; i < MV_PP2_DPI_CNTRS; i++)
		mvPp2DpiCntrWinSet(i, 0, 0);

	/* Create Request and Result queues */
	mvPp2DpiQueuesCreate(MV_PP2_DPI_Q_SIZE);
}

void	mvPp2DpiRegs(void)
{
	int    i;

	mvOsPrintf("\n[DIP registers: %d counters]\n", MV_PP2_DPI_CNTRS);

	mvPp2PrintReg(MV_PP2_DPI_INIT_REG,	 "MV_PP2_DPI_INIT_REG");
	mvPp2PrintReg(MV_PP2_DPI_REQ_Q_ADDR_REG, "MV_PP2_DPI_REQ_Q_ADDR_REG");
	mvPp2PrintReg(MV_PP2_DPI_RES_Q_ADDR_REG, "MV_PP2_DPI_RES_Q_ADDR_REG");
	mvPp2PrintReg(MV_PP2_DPI_Q_SIZE_REG,     "MV_PP2_DPI_Q_SIZE_REG");
	mvPp2PrintReg(MV_PP2_DPI_Q_STATUS_REG,   "MV_PP2_DPI_Q_STATUS_REG");
	mvPp2PrintReg(MV_PP2_DPI_Q_INDEX_REG,    "MV_PP2_DPI_Q_INDEX_REG");
	mvPp2PrintReg(MV_PP2_DPI_Q_PEND_REG,     "MV_PP2_DPI_Q_PEND_REG");
	mvPp2PrintReg(MV_PP2_DPI_Q_THRESH_REG,   "MV_PP2_DPI_Q_THRESH_REG");

	mvOsPrintf("\nDPI Bytes per counter configuration\n");
	for (i = 0; i < MV_PP2_DPI_BYTE_VAL_MAX; i++) {
		mvPp2WrReg(MV_PP2_DPI_BYTE_VAL_REG, i);
		mvPp2RegPrintNonZero2(MV_PP2_DPI_CNTR_CTRL_REG, "MV_PP2_DPI_CNTR_CTRL_REG", i);
	}

	mvOsPrintf("\nDPI counters window offset and size confuration\n");
	for (i = 0; i < MV_PP2_DPI_CNTRS; i++)
		mvPp2PrintReg2(MV_PP2_DPI_CNTR_WIN_REG(i),   "MV_PP2_DPI_CNTR_WIN_REG", i);
}


MV_STATUS	mvPp2DpiCntrWinSet(int cntr, int offset, int size)
{
	MV_U32 regVal;

	if (mvPp2MaxCheck(cntr, MV_PP2_DPI_CNTRS, "DPI counter"))
		return MV_BAD_PARAM;

	if (mvPp2MaxCheck(offset, (MV_PP2_DPI_WIN_OFFSET_MAX + 1), "DPI win offset"))
		return MV_BAD_PARAM;

	if (mvPp2MaxCheck(size, (MV_PP2_DPI_WIN_SIZE_MAX + 1), "DPI win size"))
		return MV_BAD_PARAM;

	regVal = MV_PP2_DPI_WIN_OFFSET_MASK(offset) | MV_PP2_DPI_WIN_SIZE_MASK(size);
	mvPp2WrReg(MV_PP2_DPI_CNTR_WIN_REG(cntr), regVal);

	return MV_OK;
}

MV_STATUS	mvPp2DpiByteConfig(MV_U8 byte, MV_U16 cntrs_map)
{
	mvPp2WrReg(MV_PP2_DPI_BYTE_VAL_REG, byte);
	mvPp2WrReg(MV_PP2_DPI_CNTR_CTRL_REG, cntrs_map);

	return MV_OK;
}

MV_STATUS	mvPp2DpiCntrByteSet(int cntr, MV_U8 byte, int en)
{
	MV_U32 regVal;

	if (mvPp2MaxCheck(cntr, MV_PP2_DPI_CNTRS, "DPI counter"))
		return MV_BAD_PARAM;

	mvPp2WrReg(MV_PP2_DPI_BYTE_VAL_REG, byte);
	regVal = mvPp2RdReg(MV_PP2_DPI_CNTR_CTRL_REG);

	if (en)
		regVal |= (1 << cntr);
	else
		regVal &= ~(1 << cntr);

	mvPp2WrReg(MV_PP2_DPI_CNTR_CTRL_REG, regVal);

	return MV_OK;
}

MV_STATUS	mvPp2DpiCntrDisable(int cntr)
{
	int i;

	if (mvPp2MaxCheck(cntr, MV_PP2_DPI_CNTRS, "DPI counter"))
		return MV_BAD_PARAM;

	for (i = 0; i < MV_PP2_DPI_BYTE_VAL_MAX; i++)
		mvPp2DpiCntrByteSet(cntr, i, 0);

	return MV_OK;
}

void	mvPp2DpiQueueShow(int mode)
{
	MV_PP2_QUEUE_CTRL *pQueueCtrl;
	int i;

	pQueueCtrl = mvPp2DpiReqQ;
	mvOsPrintf("\n[PPv2 DPI Requests Queue]\n");

	if (pQueueCtrl) {
		mvOsPrintf("nextToProc=%d (%p), PendingRequests=%d, NextRequestIndex=%d\n",
			pQueueCtrl->nextToProc, MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, pQueueCtrl->nextToProc),
			mvPp2DpiReqPendGet(), mvPp2DpiReqNextIdx());

		mvOsPrintf("pFirst=%p (0x%x), descSize=%d, numOfDescr=%d\n",
			pQueueCtrl->pFirst, (MV_U32) pp2DescVirtToPhys(pQueueCtrl, (MV_U8 *) pQueueCtrl->pFirst),
			pQueueCtrl->descSize, pQueueCtrl->lastDesc + 1);

		if (mode > 0) {
			for (i = 0; i <= pQueueCtrl->lastDesc; i++) {
				PP2_DPI_REQ_DESC *pReqDesc = (PP2_DPI_REQ_DESC *) MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, i);

				mvOsPrintf("%3d. pReqDesc=%p, 0x%08x, %d\n",
					i, pReqDesc, pReqDesc->bufPhysAddr, pReqDesc->dataSize);
				mvOsCacheLineInv(NULL, pReqDesc);
			}
		}
	}

	pQueueCtrl = mvPp2DpiResQ;
	mvOsPrintf("\n[PPv2 DPI Results Queue]\n");

	if (pQueueCtrl) {
		mvOsPrintf("nextToProc=%d (%p), PendingResults=%d, NextResultIndex=%d\n",
			pQueueCtrl->nextToProc, MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, pQueueCtrl->nextToProc),
			mvPp2DpiResOccupGet(), mvPp2DpiResNextIdx());

		mvOsPrintf("pFirst=%p (0x%x), descSize=%d, numOfDescr=%d\n",
			pQueueCtrl->pFirst, (MV_U32) pp2DescVirtToPhys(pQueueCtrl, (MV_U8 *) pQueueCtrl->pFirst),
			pQueueCtrl->descSize, pQueueCtrl->lastDesc + 1);

		if (mode > 0) {
			for (i = 0; i <= pQueueCtrl->lastDesc; i++) {
				/* Result Queue */
				PP2_DPI_RES_DESC *pResDesc = (PP2_DPI_RES_DESC *) MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, i);
				int j;

				mvOsPrintf("%3d. pResDesc=%p, ", i, pResDesc);
				for (j = 0; j < MV_PP2_DPI_CNTRS; j++)
					mvOsPrintf("%-2d ", pResDesc->counter[j]);

				mvOsPrintf("\n");
				mvOsCacheLineInv(NULL, pResDesc);
			}
		}
	}
}

MV_STATUS mvPp2DpiQueuesCreate(int num)
{
	MV_PP2_QUEUE_CTRL *pQueueCtrl;
	int size;

	mvPp2WrReg(MV_PP2_DPI_Q_SIZE_REG, num);

	/* Allocate memory for DPI request queue */
	pQueueCtrl = mvOsMalloc(sizeof(MV_PP2_QUEUE_CTRL));
	if (pQueueCtrl == NULL) {
		mvOsPrintf("%s: Can't allocate %d bytes for mvPp2DpiReqQ\n", __func__, sizeof(MV_PP2_QUEUE_CTRL));
		return MV_OUT_OF_CPU_MEM;
	}
	mvOsMemset(pQueueCtrl, 0, sizeof(MV_PP2_QUEUE_CTRL));

	size = (num * sizeof(PP2_DPI_REQ_DESC) + MV_PP2_DPI_Q_ALIGN);
	pQueueCtrl->descBuf.bufVirtPtr =
	    mvPp2DescrMemoryAlloc(size, &pQueueCtrl->descBuf.bufPhysAddr, &pQueueCtrl->descBuf.memHandle);
	pQueueCtrl->descBuf.bufSize = size;
	pQueueCtrl->descSize = sizeof(PP2_DPI_REQ_DESC);

	if (pQueueCtrl->descBuf.bufVirtPtr == NULL) {
		mvOsPrintf("%s: Can't allocate %d bytes for %d descr\n", __func__, size, num);
		return MV_OUT_OF_CPU_MEM;
	}

	/* Make sure descriptor address is aligned */
	pQueueCtrl->pFirst = (char *)MV_ALIGN_UP((MV_ULONG) pQueueCtrl->descBuf.bufVirtPtr, MV_PP2_DPI_Q_ALIGN);
	pQueueCtrl->lastDesc = (num - 1);
	mvPp2WrReg(MV_PP2_DPI_REQ_Q_ADDR_REG, pp2DescVirtToPhys(pQueueCtrl, (MV_U8 *)pQueueCtrl->pFirst));
	mvPp2DpiReqQ = pQueueCtrl;

	/* Allocate memory for DPI result queue */
	pQueueCtrl = mvOsMalloc(sizeof(MV_PP2_QUEUE_CTRL));
	if (pQueueCtrl == NULL) {
		mvOsPrintf("%s: Can't allocate %d bytes for mvPp2DpiResQ\n", __func__, sizeof(MV_PP2_QUEUE_CTRL));
		return MV_OUT_OF_CPU_MEM;
	}
	mvOsMemset(pQueueCtrl, 0, sizeof(MV_PP2_QUEUE_CTRL));

	size = (num * sizeof(PP2_DPI_RES_DESC) + MV_PP2_DPI_Q_ALIGN);
	pQueueCtrl->descBuf.bufVirtPtr =
	    mvPp2DescrMemoryAlloc(size, &pQueueCtrl->descBuf.bufPhysAddr, &pQueueCtrl->descBuf.memHandle);
	pQueueCtrl->descBuf.bufSize = size;
	pQueueCtrl->descSize = sizeof(PP2_DPI_RES_DESC);

	if (pQueueCtrl->descBuf.bufVirtPtr == NULL) {
		mvOsPrintf("%s: Can't allocate %d bytes for %d descr\n", __func__, size, num);
		return MV_OUT_OF_CPU_MEM;
	}
	/* Make sure descriptor address is aligned */
	pQueueCtrl->pFirst = (char *)MV_ALIGN_UP((MV_ULONG) pQueueCtrl->descBuf.bufVirtPtr, MV_PP2_DPI_Q_ALIGN);
	pQueueCtrl->lastDesc = (num - 1);
	mvPp2WrReg(MV_PP2_DPI_RES_Q_ADDR_REG, pp2DescVirtToPhys(pQueueCtrl, (MV_U8 *)pQueueCtrl->pFirst));
	mvPp2DpiResQ = pQueueCtrl;

	return MV_OK;
}

MV_STATUS mvPp2DpiQueuesDelete(void)
{
	if (mvPp2DpiReqQ) {
		mvPp2DescrMemoryFree(mvPp2DpiReqQ->descBuf.bufSize, (MV_ULONG *)mvPp2DpiReqQ->descBuf.bufPhysAddr,
				mvPp2DpiReqQ->descBuf.bufVirtPtr, (MV_U32 *)mvPp2DpiReqQ->descBuf.memHandle);
		mvOsFree(mvPp2DpiReqQ);
		mvPp2DpiReqQ = NULL;
	} else
		mvOsPrintf("%s: DPI Request queue is not initialized\n", __func__);


	if (mvPp2DpiResQ) {
		mvPp2DescrMemoryFree(mvPp2DpiResQ->descBuf.bufSize, (MV_ULONG *)mvPp2DpiResQ->descBuf.bufPhysAddr,
				mvPp2DpiResQ->descBuf.bufVirtPtr, (MV_U32 *)mvPp2DpiResQ->descBuf.memHandle);
		mvOsFree(mvPp2DpiResQ);
		mvPp2DpiResQ = NULL;
	} else
		mvOsPrintf("%s: DPI Result queue is not initialized\n", __func__);

	/* Reset all counters */
	mvPp2WrReg(MV_PP2_DPI_INIT_REG, 1);

	return MV_OK;
}

MV_STATUS mvPp2DpiRequestSet(unsigned long paddr, int size)
{
	MV_PP2_QUEUE_CTRL *pQueueCtrl = mvPp2DpiReqQ;
	PP2_DPI_REQ_DESC  *pReqDesc;
	int reqDesc = pQueueCtrl->nextToProc;

	if (mvPp2DpiReqQ == NULL) {
		mvOsPrintf("%s: DPI Request queue is not initialized\n", __func__);
		return MV_NOT_READY;
	}
	/* Check if request queue is not Full */
	if (mvPp2DpiReqIsFull(pQueueCtrl))
		return MV_FULL;

	pReqDesc = (PP2_DPI_REQ_DESC *)MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, reqDesc);
	pReqDesc->bufPhysAddr = paddr;
	pReqDesc->dataSize = size;

	pQueueCtrl->nextToProc = MV_PP2_QUEUE_NEXT_DESC(pQueueCtrl, reqDesc);

	return MV_OK;
}

MV_STATUS mvPp2DpiResultGet(MV_U8 *counters, int num)
{
	MV_PP2_QUEUE_CTRL *pQueueCtrl = mvPp2DpiResQ;
	PP2_DPI_RES_DESC  *pResDesc;
	int resDesc = pQueueCtrl->nextToProc;

	if (mvPp2DpiResQ == NULL) {
		mvOsPrintf("%s: DPI Result queue is not initialized\n", __func__);
		return MV_NOT_READY;
	}
	if (num > MV_PP2_DPI_CNTRS) {
		mvOsPrintf("%s: Number of DPI counters %d is out of maximium %d\n",
				__func__, num, MV_PP2_DPI_CNTRS);
		num = MV_PP2_DPI_CNTRS;
	}

	pResDesc = (PP2_DPI_RES_DESC *)MV_PP2_QUEUE_DESC_PTR(pQueueCtrl, resDesc);
	pQueueCtrl->nextToProc = MV_PP2_QUEUE_NEXT_DESC(pQueueCtrl, resDesc);
	if (counters)
		memcpy(counters, pResDesc->counter, num);

	return MV_OK;
}