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

#include "mvCommon.h"
#include "mvOs.h"
#include "ctrlEnv/mvCtrlEnvSpec.h"
#include "mvAudioRegs.h"

#ifndef MV_AUDIO_SKIP_WIN_DECODING
extern MV_STATUS mvAudioSetAddDecMap(MV_UNIT_WIN_INFO *pAddrDecWinMap);
#endif

/*******************************************************************************
* mvAudioWinWrite
*
* DESCRIPTION:
*	This function writes the address decoding registers according to the
*	given window configuration.
*
* INPUT:
*       unit	    - The Audio unit number to configure.
*       winNum	    - AUDIO target address decode window number.
*       pAddrDecWin - AUDIO target window data structure.
*
* OUTPUT:
*       None.
*
* RETURN:
*   MV_OK on success,
*	MV_BAD_PARAM if winNum is invalid.
*	MV_ERROR otherwise.
*
*******************************************************************************/
MV_STATUS mvAudioWinWrite(MV_U32 unit, MV_U32 winNum, MV_UNIT_WIN_INFO *pAddrDecWin)
{
	MV_U32 baseReg;
	MV_U32 sizeReg;
	MV_U32 size;
	MV_U32 alignment;

	/* Parameter checking   */
	if (winNum >= MV_AUDIO_MAX_ADDR_DECODE_WIN) {
		mvOsPrintf("%s: ERR. Invalid win num %d\n", __func__, winNum);
		return MV_BAD_PARAM;
	}

	/* check if address is aligned to the size */
	if (MV_IS_NOT_ALIGN(pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size)) {
		mvOsPrintf("mvAudioWinWrite:Error setting AUDIO window %d to "
			   "Address 0x%08x is unaligned to size 0x%x.\n",
			   winNum, pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size);
		return MV_ERROR;
	}

	size = pAddrDecWin->addrWin.size;
	if (!MV_IS_POWER_OF_2(size)) {
		mvOsPrintf("mvAudioWinWrite: Error setting AUDIO window %d. "
			   "Window size is not a power to 2.", winNum);
		return MV_BAD_PARAM;
	}

	alignment = 1 << MV_AUDIO_WIN_SIZE_OFFSET;

	sizeReg = (size / alignment - 1) << MV_AUDIO_WIN_SIZE_OFFSET;

	/* BaseLow[31:16] => base register [31:16]          */
	baseReg = pAddrDecWin->addrWin.baseLow & MV_AUDIO_WIN_BASE_MASK;

	/* set attributes */
	sizeReg &= ~MV_AUDIO_WIN_ATTR_MASK;
	sizeReg |= (pAddrDecWin->attrib << MV_AUDIO_WIN_ATTR_OFFSET);

	/* set target ID */
	sizeReg &= ~MV_AUDIO_WIN_TARGET_MASK;
	sizeReg |= (pAddrDecWin->targetId << MV_AUDIO_WIN_TARGET_OFFSET);

	if (pAddrDecWin->enable == MV_TRUE)
		sizeReg |= MV_AUDIO_WIN_ENABLE_MASK;
	else
		sizeReg &= ~MV_AUDIO_WIN_ENABLE_MASK;

	MV_REG_WRITE(MV_AUDIO_WIN_CTRL_REG(unit, winNum), sizeReg);
	MV_REG_WRITE(MV_AUDIO_WIN_BASE_REG(unit, winNum), baseReg);
	return MV_OK;
}

/*******************************************************************************
* mvAudioWinRead
*
* DESCRIPTION:
*       Read AUDIO peripheral target address window.
*
* INPUT:
*       winNum - AUDIO target address decode window number.
*
* OUTPUT:
*       pAddrDecWin - AUDIO target window data structure.
*
* RETURN:
*	MV_BAD_PARAM if winNum is invalid.
*	MV_ERROR otherwise.
*
*******************************************************************************/
MV_STATUS mvAudioWinRead(MV_U32 unit, MV_U32 winNum, MV_UNIT_WIN_INFO *pAddrDecWin)
{
	MV_U32 baseReg, sizeReg;
	MV_U32 sizeRegVal;
	MV_U32 alignment;

	if (winNum >= MV_AUDIO_MAX_ADDR_DECODE_WIN) {
		mvOsPrintf("%s : ERR. Invalid winNum %d\n", __func__, winNum);
		return MV_BAD_PARAM;
	}

	baseReg = MV_REG_READ(MV_AUDIO_WIN_BASE_REG(unit, winNum));
	sizeReg = MV_REG_READ(MV_AUDIO_WIN_CTRL_REG(unit, winNum));

	alignment = 1 << MV_AUDIO_WIN_SIZE_OFFSET;
	sizeRegVal = (sizeReg & MV_AUDIO_WIN_SIZE_MASK) >> MV_AUDIO_WIN_SIZE_OFFSET;

	pAddrDecWin->addrWin.size = (sizeRegVal + 1) * alignment;

	/* Extract base address                                             */
	/* Base register [31:16] ==> baseLow[31:16]                 */
	pAddrDecWin->addrWin.baseLow = baseReg & MV_AUDIO_WIN_BASE_MASK;
	pAddrDecWin->addrWin.baseHigh = 0;

	/* attrib and targetId */
	pAddrDecWin->attrib = (sizeReg & MV_AUDIO_WIN_ATTR_MASK) >> MV_AUDIO_WIN_ATTR_OFFSET;
	pAddrDecWin->targetId = (sizeReg & MV_AUDIO_WIN_TARGET_MASK) >> MV_AUDIO_WIN_TARGET_OFFSET;

	/* Check if window is enabled   */
	if (sizeReg & MV_AUDIO_WIN_ENABLE_MASK)
		pAddrDecWin->enable = MV_TRUE;
	else
		pAddrDecWin->enable = MV_FALSE;

	return MV_OK;
}

/*******************************************************************************
* mvAudioWinInit
*
* DESCRIPTION:
*       Initialize the AUDIO peripheral target address window.
*
* INPUT:
*	unit	 : The unit number to initialize the address decoding for.
*	addWinMap: An array holding the address decoding information for the
*		    system.
*
* OUTPUT:
*     None.
*
* RETURN:
*       MV_ERROR if register parameters are invalid.
*
*******************************************************************************/
MV_STATUS mvAudioWinInit(MV_U32 unit, MV_UNIT_WIN_INFO *addrWinMap)
{
	MV_32 winNum;
	MV_UNIT_WIN_INFO *cpuAddrDecWin;

	/* Initiate Audio address decode */

	/* First disable all address decode windows */
	for (winNum = 0; winNum < MV_AUDIO_MAX_ADDR_DECODE_WIN; winNum++) {
		MV_U32 regVal = MV_REG_READ(MV_AUDIO_WIN_CTRL_REG(unit, winNum));
		regVal &= ~MV_AUDIO_WIN_ENABLE_MASK;
		MV_REG_WRITE(MV_AUDIO_WIN_CTRL_REG(unit, winNum), regVal);
	}

	for (winNum = 0; winNum < MV_AUDIO_MAX_ADDR_DECODE_WIN; winNum++) {
		/* We will set the Window to DRAM_CS0 in default */
		/* first get attributes from CPU If */
		cpuAddrDecWin = &addrWinMap[SDRAM_CS0];

		if (cpuAddrDecWin->enable == MV_TRUE) {
			if (MV_OK != mvAudioWinWrite(unit, winNum, cpuAddrDecWin))
				return MV_ERROR;
		}
	}

#ifndef MV_AUDIO_SKIP_WIN_DECODING
	/* Initialize the address decoding map in the audio driver */
	mvAudioSetAddDecMap(addrWinMap);
#endif

	return MV_OK;
}