/* Copyright (c) 2009-2012, Code Aurora Forum. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include "msm_vfe8x_proc.h"
#include <media/msm_camera.h>
#include <mach/board.h>

struct isr_queue_cmd {
	struct list_head list;
	struct vfe_interrupt_status vfeInterruptStatus;
	struct vfe_frame_asf_info vfeAsfFrameInfo;
	struct vfe_frame_bpc_info vfeBpcFrameInfo;
	struct vfe_msg_camif_status vfeCamifStatusLocal;
	struct vfe_bus_performance_monitor vfePmData;
};

struct msm_vfe8x_ctrl {
	/* bit 1:0 ENC_IRQ_MASK = 0x11:
	 * generate IRQ when both y and cbcr frame is ready. */

	/* bit 1:0 VIEW_IRQ_MASK= 0x11:
	 * generate IRQ when both y and cbcr frame is ready. */
	struct vfe_irq_composite_mask_config vfeIrqCompositeMaskLocal;
	struct vfe_module_enable vfeModuleEnableLocal;
	struct vfe_camif_cfg_data   vfeCamifConfigLocal;
	struct vfe_interrupt_mask   vfeImaskLocal;
	struct vfe_stats_cmd_data   vfeStatsCmdLocal;
	struct vfe_bus_cfg_data     vfeBusConfigLocal;
	struct vfe_cmd_bus_pm_start vfeBusPmConfigLocal;
	struct vfe_bus_cmd_data     vfeBusCmdLocal;
	enum vfe_interrupt_name     vfeInterruptNameLocal;
	uint32_t vfeLaBankSel;
	struct vfe_gamma_lut_sel  vfeGammaLutSel;

	boolean vfeStartAckPendingFlag;
	boolean vfeStopAckPending;
	boolean vfeResetAckPending;
	boolean vfeUpdateAckPending;

	enum VFE_AXI_OUTPUT_MODE        axiOutputMode;
	enum VFE_START_OPERATION_MODE   vfeOperationMode;

	atomic_t vfe_serv_interrupt;

	uint32_t            vfeSnapShotCount;
	uint32_t            vfeRequestedSnapShotCount;
	boolean             vfeStatsPingPongReloadFlag;
	uint32_t            vfeFrameId;

	struct vfe_cmd_frame_skip_config vfeFrameSkip;
	uint32_t vfeFrameSkipPattern;
	uint8_t  vfeFrameSkipCount;
	uint8_t  vfeFrameSkipPeriod;

	boolean  vfeTestGenStartFlag;
	uint32_t vfeImaskPacked;
	uint32_t vfeImaskCompositePacked;
	enum VFE_RAW_PIXEL_DATA_SIZE       axiInputDataSize;
	struct vfe_irq_thread_msg          vfeIrqThreadMsgLocal;

	struct vfe_output_path_combo  viewPath;
	struct vfe_output_path_combo  encPath;
	struct vfe_frame_skip_counts vfeDroppedFrameCounts;
	struct vfe_stats_control afStatsControl;
	struct vfe_stats_control awbStatsControl;

	enum VFE_STATE  vstate;

	struct msm_vfe_callback *resp;
	struct vfe_frame_extra extdata;

	struct isr_queue_cmd irqs[10];
	spinlock_t irqs_lock;
	int irq_get;
	int irq_put;

	int vfeirq;
	void __iomem *vfebase;

	void *syncdata;
};

static struct msm_vfe8x_ctrl *ctrl;
static spinlock_t msm_vfe_ctrl_lock;

static void vfe_prog_hw(uint8_t *hwreg, uint32_t *inptr, uint32_t regcnt)
{
	/* unsigned long flags; */
	uint32_t i;
	uint32_t *p;

	/* @todo This is causing issues, need further investigate */
	/* spin_lock_irqsave(&ctrl->io_lock, flags); */

	p = (uint32_t *)(hwreg);
	for (i = 0; i < (regcnt >> 2); i++)
		writel(*inptr++, p++);
		/* *p++ = *inptr++; */

	/* spin_unlock_irqrestore(&ctrl->io_lock, flags); */
}

static void
vfe_set_bus_pipo_addr(struct vfe_output_path_combo *vpath,
	struct vfe_output_path_combo *epath)
{
	vpath->yPath.hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_VIEW_Y_WR_PING_ADDR);
	vpath->yPath.hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_VIEW_Y_WR_PONG_ADDR);
	vpath->cbcrPath.hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_VIEW_CBCR_WR_PING_ADDR);
	vpath->cbcrPath.hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_VIEW_CBCR_WR_PONG_ADDR);

	epath->yPath.hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_ENC_Y_WR_PING_ADDR);
	epath->yPath.hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_ENC_Y_WR_PONG_ADDR);
	epath->cbcrPath.hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_ENC_CBCR_WR_PING_ADDR);
	epath->cbcrPath.hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_ENC_CBCR_WR_PONG_ADDR);
}

static void vfe_axi_output(struct vfe_cmd_axi_output_config *in,
	struct vfe_output_path_combo *out1,
	struct vfe_output_path_combo *out2, uint16_t out)
{
	struct vfe_axi_out_cfg cmd;

	uint16_t temp;
	uint32_t burstLength;

	memset(&cmd, 0, sizeof(cmd));
	/* force it to burst length 4, hardware does not support it. */
	burstLength = 1;

	/* AXI Output 2 Y Configuration*/
	/* VFE_BUS_ENC_Y_WR_PING_ADDR  */
	cmd.out2YPingAddr = out2->yPath.addressBuffer[0];

	/* VFE_BUS_ENC_Y_WR_PONG_ADDR  */
	cmd.out2YPongAddr = out2->yPath.addressBuffer[1];

	/* VFE_BUS_ENC_Y_WR_IMAGE_SIZE */
	cmd.out2YImageHeight = in->output2.outputY.imageHeight;
	/* convert the image width and row increment to be in
	 * unit of 64bit (8 bytes) */
	temp = (in->output2.outputY.imageWidth + (out - 1)) / out;
	cmd.out2YImageWidthin64bit = temp;

	/* VFE_BUS_ENC_Y_WR_BUFFER_CFG */
	cmd.out2YBurstLength = burstLength;
	cmd.out2YNumRows = in->output2.outputY.outRowCount;
	temp = (in->output2.outputY.outRowIncrement + (out - 1)) / out;
	cmd.out2YRowIncrementIn64bit = temp;

	/* AXI Output 2 Cbcr Configuration*/
	/* VFE_BUS_ENC_Cbcr_WR_PING_ADDR  */
	cmd.out2CbcrPingAddr = out2->cbcrPath.addressBuffer[0];

	/* VFE_BUS_ENC_Cbcr_WR_PONG_ADDR  */
	cmd.out2CbcrPongAddr = out2->cbcrPath.addressBuffer[1];

	/* VFE_BUS_ENC_Cbcr_WR_IMAGE_SIZE */
	cmd.out2CbcrImageHeight = in->output2.outputCbcr.imageHeight;
	temp = (in->output2.outputCbcr.imageWidth + (out - 1)) / out;
	cmd.out2CbcrImageWidthIn64bit = temp;

	/* VFE_BUS_ENC_Cbcr_WR_BUFFER_CFG */
	cmd.out2CbcrBurstLength = burstLength;
	cmd.out2CbcrNumRows = in->output2.outputCbcr.outRowCount;
	temp = (in->output2.outputCbcr.outRowIncrement + (out - 1)) / out;
	cmd.out2CbcrRowIncrementIn64bit = temp;

	/* AXI Output 1 Y Configuration */
	/* VFE_BUS_VIEW_Y_WR_PING_ADDR  */
	cmd.out1YPingAddr = out1->yPath.addressBuffer[0];

	/* VFE_BUS_VIEW_Y_WR_PONG_ADDR */
	cmd.out1YPongAddr = out1->yPath.addressBuffer[1];

	/* VFE_BUS_VIEW_Y_WR_IMAGE_SIZE */
	cmd.out1YImageHeight = in->output1.outputY.imageHeight;
	temp = (in->output1.outputY.imageWidth + (out - 1)) / out;
	cmd.out1YImageWidthin64bit = temp;

	/* VFE_BUS_VIEW_Y_WR_BUFFER_CFG     */
	cmd.out1YBurstLength = burstLength;
	cmd.out1YNumRows = in->output1.outputY.outRowCount;

	temp = (in->output1.outputY.outRowIncrement + (out - 1)) / out;
	cmd.out1YRowIncrementIn64bit = temp;

	/* AXI Output 1 Cbcr Configuration*/
	cmd.out1CbcrPingAddr = out1->cbcrPath.addressBuffer[0];

	/* VFE_BUS_VIEW_Cbcr_WR_PONG_ADDR  */
	cmd.out1CbcrPongAddr = out1->cbcrPath.addressBuffer[1];

	/* VFE_BUS_VIEW_Cbcr_WR_IMAGE_SIZE */
	cmd.out1CbcrImageHeight = in->output1.outputCbcr.imageHeight;
	temp = (in->output1.outputCbcr.imageWidth + (out - 1)) / out;
	cmd.out1CbcrImageWidthIn64bit = temp;

	cmd.out1CbcrBurstLength = burstLength;
	cmd.out1CbcrNumRows = in->output1.outputCbcr.outRowCount;
	temp = (in->output1.outputCbcr.outRowIncrement + (out - 1)) / out;

	cmd.out1CbcrRowIncrementIn64bit = temp;

	vfe_prog_hw(ctrl->vfebase + VFE_BUS_ENC_Y_WR_PING_ADDR,
		(uint32_t *)&cmd, sizeof(cmd));
}

static void vfe_reg_bus_cfg(struct vfe_bus_cfg_data *in)
{
	struct vfe_axi_bus_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.stripeRdPathEn      = in->stripeRdPathEn;
	cmd.encYWrPathEn        = in->encYWrPathEn;
	cmd.encCbcrWrPathEn     = in->encCbcrWrPathEn;
	cmd.viewYWrPathEn       = in->viewYWrPathEn;
	cmd.viewCbcrWrPathEn    = in->viewCbcrWrPathEn;
	cmd.rawPixelDataSize    = (uint32_t)in->rawPixelDataSize;
	cmd.rawWritePathSelect  = (uint32_t)in->rawWritePathSelect;

	/*  program vfe_bus_cfg */
	writel(*((uint32_t *)&cmd), ctrl->vfebase + VFE_BUS_CFG);
}

static void vfe_reg_camif_config(struct vfe_camif_cfg_data *in)
{
	struct VFE_CAMIFConfigType cfg;

	memset(&cfg, 0, sizeof(cfg));

	cfg.VSyncEdge = in->camifCfgFromCmd.vSyncEdge;

	cfg.HSyncEdge = in->camifCfgFromCmd.hSyncEdge;

	cfg.syncMode = in->camifCfgFromCmd.syncMode;

	cfg.vfeSubsampleEnable = in->camifCfgFromCmd.vfeSubSampleEnable;

	cfg.busSubsampleEnable = in->camifCfgFromCmd.busSubSampleEnable;

	cfg.camif2vfeEnable = in->camif2OutputEnable;

	cfg.camif2busEnable = in->camif2BusEnable;

	cfg.irqSubsampleEnable = in->camifCfgFromCmd.irqSubSampleEnable;

	cfg.binningEnable = in->camifCfgFromCmd.binningEnable;

	cfg.misrEnable = in->camifCfgFromCmd.misrEnable;

	/*  program camif_config */
	writel(*((uint32_t *)&cfg), ctrl->vfebase + CAMIF_CONFIG);
}

static void vfe_reg_bus_cmd(struct vfe_bus_cmd_data *in)
{
	struct vfe_buscmd cmd;
	memset(&cmd, 0, sizeof(cmd));

	cmd.stripeReload        = in->stripeReload;
	cmd.busPingpongReload   = in->busPingpongReload;
	cmd.statsPingpongReload = in->statsPingpongReload;

	writel(*((uint32_t *)&cmd), ctrl->vfebase + VFE_BUS_CMD);

	CDBG("bus command = 0x%x\n", (*((uint32_t *)&cmd)));

	/* this is needed, as the control bits are pulse based.
	 * Don't want to reload bus pingpong again. */
	in->busPingpongReload = 0;
	in->statsPingpongReload = 0;
	in->stripeReload = 0;
}

static void vfe_reg_module_cfg(struct vfe_module_enable *in)
{
	struct vfe_mod_enable ena;

	memset(&ena, 0, sizeof(ena));

	ena.blackLevelCorrectionEnable = in->blackLevelCorrectionEnable;
	ena.lensRollOffEnable          = in->lensRollOffEnable;
	ena.demuxEnable                = in->demuxEnable;
	ena.chromaUpsampleEnable       = in->chromaUpsampleEnable;
	ena.demosaicEnable             = in->demosaicEnable;
	ena.statsEnable                = in->statsEnable;
	ena.cropEnable                 = in->cropEnable;
	ena.mainScalerEnable           = in->mainScalerEnable;
	ena.whiteBalanceEnable         = in->whiteBalanceEnable;
	ena.colorCorrectionEnable      = in->colorCorrectionEnable;
	ena.yHistEnable                = in->yHistEnable;
	ena.skinToneEnable             = in->skinToneEnable;
	ena.lumaAdaptationEnable       = in->lumaAdaptationEnable;
	ena.rgbLUTEnable               = in->rgbLUTEnable;
	ena.chromaEnhanEnable          = in->chromaEnhanEnable;
	ena.asfEnable                  = in->asfEnable;
	ena.chromaSuppressionEnable    = in->chromaSuppressionEnable;
	ena.chromaSubsampleEnable      = in->chromaSubsampleEnable;
	ena.scaler2YEnable             = in->scaler2YEnable;
	ena.scaler2CbcrEnable          = in->scaler2CbcrEnable;

	writel(*((uint32_t *)&ena), ctrl->vfebase + VFE_MODULE_CFG);
}

static void vfe_program_dmi_cfg(enum VFE_DMI_RAM_SEL bankSel)
{
	/* set bit 8 for auto increment. */
	uint32_t value = (uint32_t) ctrl->vfebase + VFE_DMI_CFG_DEFAULT;

	value += (uint32_t)bankSel;
	/* CDBG("dmi cfg input bank is  0x%x\n", bankSel); */

	writel(value, ctrl->vfebase + VFE_DMI_CFG);
	writel(0, ctrl->vfebase + VFE_DMI_ADDR);
}

static void vfe_write_lens_roll_off_table(struct vfe_cmd_roll_off_config *in)
{
	uint16_t i;
	uint32_t data;

	uint16_t *initGr = in->initTableGr;
	uint16_t *initGb = in->initTableGb;
	uint16_t *initB =  in->initTableB;
	uint16_t *initR =  in->initTableR;

	int16_t *pDeltaGr = in->deltaTableGr;
	int16_t *pDeltaGb = in->deltaTableGb;
	int16_t *pDeltaB =  in->deltaTableB;
	int16_t *pDeltaR =  in->deltaTableR;

	vfe_program_dmi_cfg(ROLLOFF_RAM);

	/* first pack and write init table */
	for (i = 0; i < VFE_ROLL_OFF_INIT_TABLE_SIZE; i++) {
		data = (((uint32_t)(*initR)) & 0x0000FFFF) |
			(((uint32_t)(*initGr)) << 16);
		initR++;
		initGr++;

		writel(data, ctrl->vfebase + VFE_DMI_DATA_LO);

		data = (((uint32_t)(*initB)) & 0x0000FFFF) |
			(((uint32_t)(*initGb))<<16);
		initB++;
		initGb++;

		writel(data, ctrl->vfebase + VFE_DMI_DATA_LO);
	}

	/* there are gaps between the init table and delta table,
	 * set the offset for delta table. */
	writel(LENS_ROLL_OFF_DELTA_TABLE_OFFSET, ctrl->vfebase + VFE_DMI_ADDR);

	/* pack and write delta table */
	for (i = 0; i < VFE_ROLL_OFF_DELTA_TABLE_SIZE; i++) {
		data = (((int)(*pDeltaR)) & 0x0000FFFF) |
			(((int)(*pDeltaGr))<<16);
		pDeltaR++;
		pDeltaGr++;

		writel(data, ctrl->vfebase + VFE_DMI_DATA_LO);

		data = (((int)(*pDeltaB)) & 0x0000FFFF) |
			(((int)(*pDeltaGb))<<16);
		pDeltaB++;
		pDeltaGb++;

		writel(data, ctrl->vfebase + VFE_DMI_DATA_LO);
	}

	/* After DMI transfer, to make it safe, need to set the
	 * DMI_CFG to unselect any SRAM
	 */
	/* unselect the SRAM Bank. */
	writel(VFE_DMI_CFG_DEFAULT, ctrl->vfebase + VFE_DMI_CFG);
}

static void vfe_set_default_reg_values(void)
{
	writel(0x800080, ctrl->vfebase + VFE_DEMUX_GAIN_0);
	writel(0x800080, ctrl->vfebase + VFE_DEMUX_GAIN_1);
	writel(0xFFFFF, ctrl->vfebase + VFE_CGC_OVERRIDE);

	/* default frame drop period and pattern */
	writel(0x1f, ctrl->vfebase + VFE_FRAMEDROP_ENC_Y_CFG);
	writel(0x1f, ctrl->vfebase + VFE_FRAMEDROP_ENC_CBCR_CFG);
	writel(0xFFFFFFFF, ctrl->vfebase + VFE_FRAMEDROP_ENC_Y_PATTERN);
	writel(0xFFFFFFFF, ctrl->vfebase + VFE_FRAMEDROP_ENC_CBCR_PATTERN);
	writel(0x1f, ctrl->vfebase + VFE_FRAMEDROP_VIEW_Y_CFG);
	writel(0x1f, ctrl->vfebase + VFE_FRAMEDROP_VIEW_CBCR_CFG);
	writel(0xFFFFFFFF, ctrl->vfebase + VFE_FRAMEDROP_VIEW_Y_PATTERN);
	writel(0xFFFFFFFF, ctrl->vfebase + VFE_FRAMEDROP_VIEW_CBCR_PATTERN);
	writel(0, ctrl->vfebase + VFE_CLAMP_MIN_CFG);
	writel(0xFFFFFF, ctrl->vfebase + VFE_CLAMP_MAX_CFG);
}

static void vfe_config_demux(uint32_t period, uint32_t even, uint32_t odd)
{
	writel(period, ctrl->vfebase + VFE_DEMUX_CFG);
	writel(even, ctrl->vfebase + VFE_DEMUX_EVEN_CFG);
	writel(odd, ctrl->vfebase + VFE_DEMUX_ODD_CFG);
}

static void vfe_pm_stop(void)
{
	writel(VFE_PERFORMANCE_MONITOR_STOP, ctrl->vfebase + VFE_BUS_PM_CMD);
}

static void vfe_camif_stop_immediately(void)
{
	writel(CAMIF_COMMAND_STOP_IMMEDIATELY, ctrl->vfebase + CAMIF_COMMAND);
	writel(0, ctrl->vfebase + VFE_CGC_OVERRIDE);
}

static void vfe_program_reg_update_cmd(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_REG_UPDATE_CMD);
}

static void vfe_program_global_reset_cmd(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_GLOBAL_RESET_CMD);
}

static void vfe_program_axi_cmd(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_AXI_CMD);
}

static void vfe_program_irq_composite_mask(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_IRQ_COMPOSITE_MASK);
}

static inline void vfe_program_irq_mask(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_IRQ_MASK);
}

static uint32_t vfe_read_axi_status(void)
{
	return readl(ctrl->vfebase + VFE_AXI_STATUS);
}

static void
vfe_set_stats_pingpong_address(struct vfe_stats_control *afControl,
	struct vfe_stats_control *awbControl)
{
	afControl->hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_STATS_AF_WR_PING_ADDR);
	afControl->hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_STATS_AF_WR_PONG_ADDR);

	awbControl->hwRegPingAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PING_ADDR);
	awbControl->hwRegPongAddress = (uint8_t *)
		(ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PONG_ADDR);
}

static void vfe_program_lut_bank_sel(struct vfe_gamma_lut_sel *in)
{
	struct VFE_GammaLutSelect_ConfigCmdType cmd;

	memset(&cmd, 0, sizeof(cmd));

	cmd.ch0BankSelect = in->ch0BankSelect;
	cmd.ch1BankSelect = in->ch1BankSelect;
	cmd.ch2BankSelect = in->ch2BankSelect;
	CDBG("VFE gamma lut bank selection is 0x%x\n", *((uint32_t *)&cmd));
	vfe_prog_hw(ctrl->vfebase + VFE_LUT_BANK_SEL,
		(uint32_t *)&cmd, sizeof(cmd));
}

static void vfe_program_stats_cmd(struct vfe_stats_cmd_data *in)
{
	struct VFE_StatsCmdType stats;
	memset(&stats, 0, sizeof(stats));

	stats.autoFocusEnable        = in->autoFocusEnable;
	stats.axwEnable              = in->axwEnable;
	stats.histEnable             = in->histEnable;
	stats.clearHistEnable        = in->clearHistEnable;
	stats.histAutoClearEnable    = in->histAutoClearEnable;
	stats.colorConversionEnable  = in->colorConversionEnable;

	writel(*((uint32_t *)&stats), ctrl->vfebase + VFE_STATS_CMD);
}

static void vfe_pm_start(struct vfe_cmd_bus_pm_start *in)
{
	struct VFE_Bus_Pm_ConfigCmdType cmd;
	memset(&cmd, 0, sizeof(struct VFE_Bus_Pm_ConfigCmdType));

	cmd.output2YWrPmEnable     = in->output2YWrPmEnable;
	cmd.output2CbcrWrPmEnable  = in->output2CbcrWrPmEnable;
	cmd.output1YWrPmEnable     = in->output1YWrPmEnable;
	cmd.output1CbcrWrPmEnable  = in->output1CbcrWrPmEnable;

	vfe_prog_hw(ctrl->vfebase + VFE_BUS_PM_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

static void vfe_8k_pm_start(struct vfe_cmd_bus_pm_start *in)
{
	in->output1CbcrWrPmEnable = ctrl->vfeBusConfigLocal.viewCbcrWrPathEn;
	in->output1YWrPmEnable    = ctrl->vfeBusConfigLocal.viewYWrPathEn;
	in->output2CbcrWrPmEnable = ctrl->vfeBusConfigLocal.encCbcrWrPathEn;
	in->output2YWrPmEnable    = ctrl->vfeBusConfigLocal.encYWrPathEn;

	if (in->output1CbcrWrPmEnable || in->output1YWrPmEnable)
		ctrl->viewPath.pmEnabled = TRUE;

	if (in->output2CbcrWrPmEnable || in->output2YWrPmEnable)
		ctrl->encPath.pmEnabled = TRUE;

	vfe_pm_start(in);

	writel(VFE_PERFORMANCE_MONITOR_GO, ctrl->vfebase + VFE_BUS_PM_CMD);
}

static uint32_t vfe_irq_pack(struct vfe_interrupt_mask data)
{
	struct vfe_irqenable packedData;

	memset(&packedData, 0, sizeof(packedData));

	packedData.camifErrorIrq          = data.camifErrorIrq;
	packedData.camifSofIrq            = data.camifSofIrq;
	packedData.camifEolIrq            = data.camifEolIrq;
	packedData.camifEofIrq            = data.camifEofIrq;
	packedData.camifEpoch1Irq         = data.camifEpoch1Irq;
	packedData.camifEpoch2Irq         = data.camifEpoch2Irq;
	packedData.camifOverflowIrq       = data.camifOverflowIrq;
	packedData.ceIrq                  = data.ceIrq;
	packedData.regUpdateIrq           = data.regUpdateIrq;
	packedData.resetAckIrq            = data.resetAckIrq;
	packedData.encYPingpongIrq        = data.encYPingpongIrq;
	packedData.encCbcrPingpongIrq     = data.encCbcrPingpongIrq;
	packedData.viewYPingpongIrq       = data.viewYPingpongIrq;
	packedData.viewCbcrPingpongIrq    = data.viewCbcrPingpongIrq;
	packedData.rdPingpongIrq          = data.rdPingpongIrq;
	packedData.afPingpongIrq          = data.afPingpongIrq;
	packedData.awbPingpongIrq         = data.awbPingpongIrq;
	packedData.histPingpongIrq        = data.histPingpongIrq;
	packedData.encIrq                 = data.encIrq;
	packedData.viewIrq                = data.viewIrq;
	packedData.busOverflowIrq         = data.busOverflowIrq;
	packedData.afOverflowIrq          = data.afOverflowIrq;
	packedData.awbOverflowIrq         = data.awbOverflowIrq;
	packedData.syncTimer0Irq          = data.syncTimer0Irq;
	packedData.syncTimer1Irq          = data.syncTimer1Irq;
	packedData.syncTimer2Irq          = data.syncTimer2Irq;
	packedData.asyncTimer0Irq         = data.asyncTimer0Irq;
	packedData.asyncTimer1Irq         = data.asyncTimer1Irq;
	packedData.asyncTimer2Irq         = data.asyncTimer2Irq;
	packedData.asyncTimer3Irq         = data.asyncTimer3Irq;
	packedData.axiErrorIrq            = data.axiErrorIrq;
	packedData.violationIrq           = data.violationIrq;

	return *((uint32_t *)&packedData);
}

static uint32_t
vfe_irq_composite_pack(struct vfe_irq_composite_mask_config data)
{
	struct VFE_Irq_Composite_MaskType packedData;

	memset(&packedData, 0, sizeof(packedData));

	packedData.encIrqComMaskBits   = data.encIrqComMask;
	packedData.viewIrqComMaskBits  = data.viewIrqComMask;
	packedData.ceDoneSelBits       = data.ceDoneSel;

	return *((uint32_t *)&packedData);
}

static void vfe_addr_convert(struct msm_vfe_phy_info *pinfo,
				enum vfe_resp_msg type, void *data, void **ext,
				int *elen)
{
	switch (type) {
	case VFE_MSG_OUTPUT_P:
	case VFE_MSG_OUTPUT_V:{
		pinfo->planar0_off =
			((struct vfe_message *)data)->_u.msgOutput2.yBuffer;
		pinfo->planar1_off =
			((struct vfe_message *)data)->_u.msgOutput2.
			cbcrBuffer;
		pinfo->planar2_off = pinfo->planar0_off;
		ctrl->extdata.bpcInfo =
			((struct vfe_message *)data)->_u.msgOutput2.bpcInfo;
		ctrl->extdata.asfInfo =
			((struct vfe_message *)data)->_u.msgOutput2.asfInfo;
		ctrl->extdata.frameCounter =
			((struct vfe_message *)data)->_u.msgOutput2.
			frameCounter;
		ctrl->extdata.pmData =
		((struct vfe_message *)data)->_u.msgOutput2.pmData;
		*ext = &ctrl->extdata;
		*elen = sizeof(ctrl->extdata);
	}
		break;

	case VFE_MSG_STATS_AF:
		pinfo->sbuf_phy =
		((struct vfe_message *)data)->_u.msgStatsAf.afBuffer;
		break;

	case VFE_MSG_STATS_WE:
		pinfo->sbuf_phy =
		((struct vfe_message *)data)->_u.msgStatsWbExp.awbBuffer;
		break;

	default:
		break;
	} /* switch */
}

static boolean vfe_send_preview_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_video_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_mainimage_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_thumbnail_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_af_stats_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_awb_stats_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_camif_error_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_bus_overflow_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);
static boolean vfe_send_sof_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg, void *data);

static boolean invalid(struct msm_vfe_resp *rp,
		struct vfe_message *_m, void *_d)
{
	BUG_ON(1); /* this function should not be called. */
	return FALSE;
}

static struct {
	boolean (*fn)(struct msm_vfe_resp *rp, struct vfe_message *msg,
		void *data);
	enum vfe_resp_msg rt; /* reponse type */
} vfe_funcs[] = {
	[VFE_MSG_ID_RESET_ACK] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_START_ACK] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_STOP_ACK] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_UPDATE_ACK] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_OUTPUT_P] = { vfe_send_preview_msg, VFE_MSG_OUTPUT_P },
	[VFE_MSG_ID_OUTPUT_V] = { vfe_send_video_msg, VFE_MSG_OUTPUT_V },
	[VFE_MSG_ID_OUTPUT_S] = { vfe_send_mainimage_msg, VFE_MSG_OUTPUT_S },
	[VFE_MSG_ID_OUTPUT_T] = { vfe_send_thumbnail_msg, VFE_MSG_OUTPUT_T },
	[VFE_MSG_ID_SNAPSHOT_DONE] = { NULL, VFE_MSG_SNAPSHOT },
	[VFE_MSG_ID_STATS_AUTOFOCUS] = { vfe_send_af_stats_msg,
		VFE_MSG_STATS_AF },
	[VFE_MSG_ID_STATS_WB_EXP] = { vfe_send_awb_stats_msg,
		VFE_MSG_STATS_WE },
	[VFE_MSG_ID_EPOCH1] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_EPOCH2] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_SYNC_TIMER0_DONE] = { invalid },
	[VFE_MSG_ID_SYNC_TIMER1_DONE] = { invalid },
	[VFE_MSG_ID_SYNC_TIMER2_DONE] = { invalid },
	[VFE_MSG_ID_ASYNC_TIMER0_DONE] = { invalid },
	[VFE_MSG_ID_ASYNC_TIMER1_DONE] = { invalid },
	[VFE_MSG_ID_ASYNC_TIMER2_DONE] = { invalid },
	[VFE_MSG_ID_ASYNC_TIMER3_DONE] = { invalid },
	[VFE_MSG_ID_AF_OVERFLOW] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_AWB_OVERFLOW] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_AXI_ERROR] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_CAMIF_OVERFLOW] = { NULL, VFE_MSG_GENERAL },
	[VFE_MSG_ID_VIOLATION] = { invalid },
	[VFE_MSG_ID_CAMIF_ERROR] = { vfe_send_camif_error_msg,
		VFE_MSG_GENERAL },
	[VFE_MSG_ID_BUS_OVERFLOW] = { vfe_send_bus_overflow_msg,
		VFE_MSG_GENERAL },
	[VFE_MSG_ID_SOF_ACK] = { vfe_send_sof_msg,
		VFE_MSG_GENERAL },
};

static void vfe_proc_ops(enum VFE_MESSAGE_ID id, void *data)
{
	struct msm_vfe_resp *rp;
	struct vfe_message *msg;

	if (id >= ARRAY_SIZE(vfe_funcs) || vfe_funcs[id].fn == invalid) {
		pr_err("%s: invalid VFE message id %d\n", __func__, id);
		return;
	}

	/* In 8k, OUTPUT1 & OUTPUT2 messages arrive before SNAPSHOT_DONE.
	 * We don't send such messages to the user.  Note that we can do
	 * this in the vfe_func[] callback, but that would cause us to
	 * allocate and then immediately free the msm_vfe_resp structure,
	 * which is wasteful.
	 */
	if ((ctrl->vfeOperationMode == VFE_START_OPERATION_MODE_SNAPSHOT) &&
			(id == VFE_MSG_ID_OUTPUT_T ||
			 id == VFE_MSG_ID_OUTPUT_S))
		return;

	rp = ctrl->resp->vfe_alloc(sizeof(*rp) +
					(vfe_funcs[id].fn ? sizeof(*msg) : 0),
					ctrl->syncdata,
					GFP_ATOMIC);
	if (!rp) {
		pr_err("%s: out of memory\n", __func__);
		return;
	}

	rp->type = vfe_funcs[id].rt;
	rp->evt_msg.type = MSM_CAMERA_MSG;
	rp->evt_msg.msg_id = id;

	if (!vfe_funcs[id].fn) {
		rp->evt_msg.len = 0;
		rp->evt_msg.data = 0;
	} else {
		/* populate the message accordingly */
		if (vfe_funcs[id].fn)
			rp->evt_msg.data = msg =
				(struct vfe_message *)(rp + 1);
		else
			rp->evt_msg.data = msg = 0;
		rp->evt_msg.len = sizeof(*msg);
		msg->_d = id;
		if (vfe_funcs[id].fn(rp, msg, data) == FALSE) {
			pr_warning("%s: freeing memory: handler for %d "
				"returned false\n", __func__, id);
			ctrl->resp->vfe_free(rp);
			return;
		}
}

	ctrl->resp->vfe_resp(rp, MSM_CAM_Q_VFE_MSG, ctrl->syncdata, GFP_KERNEL);
}

static boolean vfe_send_bus_overflow_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg,
			void *data)
{
#if 0
	memcpy(&(msg->_u.msgBusOverflow),
		&ctrl->vfePmData, sizeof(ctrl->vfePmData));
#endif
	return TRUE;
}

static boolean vfe_send_sof_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg,
			void *data)
{
	return TRUE;
}
static boolean vfe_send_camif_error_msg(struct msm_vfe_resp *rp,
			struct vfe_message *msg,
			void *data)
{
#if 0
	memcpy(&(msg->_u.msgCamifError),
	       &ctrl->vfeCamifStatusLocal, sizeof(ctrl->vfeCamifStatusLocal));
#endif
	return TRUE;
}

static void vfe_process_error_irq(struct vfe_interrupt_status *irqstatus)
{
	/* all possible error irq.  Note error irqs are not enabled, it is
	 * checked only when other interrupts are present. */
	if (irqstatus->afOverflowIrq)
		vfe_proc_ops(VFE_MSG_ID_AF_OVERFLOW, NULL);

	if (irqstatus->awbOverflowIrq)
		vfe_proc_ops(VFE_MSG_ID_AWB_OVERFLOW, NULL);

	if (irqstatus->axiErrorIrq)
		vfe_proc_ops(VFE_MSG_ID_AXI_ERROR, NULL);

	if (irqstatus->busOverflowIrq)
		vfe_proc_ops(VFE_MSG_ID_BUS_OVERFLOW, NULL);

	if (irqstatus->camifErrorIrq) {
		CDBG("vfe_irq: camif errors\n");
		vfe_proc_ops(VFE_MSG_ID_CAMIF_ERROR, NULL);
	}

	if (irqstatus->camifOverflowIrq)
		vfe_proc_ops(VFE_MSG_ID_CAMIF_OVERFLOW, NULL);

	if (irqstatus->violationIrq)
		pr_err("%s: violation irq\n", __func__);
}

static void vfe_process_camif_sof_irq(void)
{
	/* increment the frame id number. */
	ctrl->vfeFrameId++;

	CDBG("camif_sof_irq, frameId = %d\n", ctrl->vfeFrameId);

	/* In snapshot mode, if frame skip is programmed,
	* need to check it accordingly to stop camif at
	* correct frame boundary. For the dropped frames,
	* there won't be any output path irqs, but there is
	* still SOF irq, which can help us determine when
	* to stop the camif.
	*/
	if (ctrl->vfeOperationMode) {
		if ((1 << ctrl->vfeFrameSkipCount)&ctrl->vfeFrameSkipPattern) {

			ctrl->vfeSnapShotCount--;
			if (ctrl->vfeSnapShotCount == 0)
				/* terminate vfe pipeline at frame boundary. */
				writel(CAMIF_COMMAND_STOP_AT_FRAME_BOUNDARY,
					ctrl->vfebase + CAMIF_COMMAND);
		}

		/* update frame skip counter for bit checking. */
		ctrl->vfeFrameSkipCount++;
		if (ctrl->vfeFrameSkipCount == (ctrl->vfeFrameSkipPeriod + 1))
			ctrl->vfeFrameSkipCount = 0;
	}
	vfe_proc_ops(VFE_MSG_ID_SOF_ACK, NULL);
}

static boolean vfe_get_af_pingpong_status(void)
{
	uint32_t busPingPongStatus =
		readl(ctrl->vfebase + VFE_BUS_PINGPONG_STATUS);
	return !!(busPingPongStatus & VFE_AF_PINGPONG_STATUS_BIT);
}

static uint32_t vfe_read_af_buf_addr(boolean pipo)
{
	if (pipo == FALSE)
		return readl(ctrl->vfebase + VFE_BUS_STATS_AF_WR_PING_ADDR);
	else
		return readl(ctrl->vfebase + VFE_BUS_STATS_AF_WR_PONG_ADDR);
}

static void vfe_update_af_buf_addr(boolean pipo, uint32_t addr)
{
	if (pipo == FALSE)
		writel(addr, ctrl->vfebase + VFE_BUS_STATS_AF_WR_PING_ADDR);
	else
		writel(addr, ctrl->vfebase + VFE_BUS_STATS_AF_WR_PONG_ADDR);
}

static boolean vfe_send_af_stats_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	uint32_t afBufAddress = (uint32_t)data;

	/* fill message with right content. */
	/* @todo This is causing issues, need further investigate */
	/* spin_lock_irqsave(&ctrl->state_lock, flags); */
	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;

	msg->_u.msgStatsAf.afBuffer = afBufAddress;
	msg->_u.msgStatsAf.frameCounter = ctrl->vfeFrameId;

	ctrl->afStatsControl.ackPending = TRUE;

	vfe_addr_convert(&(rp->phy), rp->type, msg, NULL, NULL);
	/* spin_unlock_irqrestore(&ctrl->state_lock, flags); */
	return TRUE;
}

static void vfe_process_stats_af_irq(void)
{
	boolean bufferAvailable;

	if (!(ctrl->afStatsControl.ackPending)) {

		/* read hardware status. */
		ctrl->afStatsControl.pingPongStatus =
			vfe_get_af_pingpong_status();

		bufferAvailable = (ctrl->afStatsControl.pingPongStatus) ^ 1;

		ctrl->afStatsControl.bufToRender =
			vfe_read_af_buf_addr(bufferAvailable);

		/* update the same buffer address (ping or pong) */
		vfe_update_af_buf_addr(bufferAvailable,
			ctrl->afStatsControl.nextFrameAddrBuf);

		vfe_proc_ops(VFE_MSG_ID_STATS_AUTOFOCUS,
			(void *)ctrl->afStatsControl.bufToRender);
	} else
		ctrl->afStatsControl.droppedStatsFrameCount++;
}

static boolean vfe_get_awb_pingpong_status(void)
{
	uint32_t busPingPongStatus =

		readl(ctrl->vfebase + VFE_BUS_PINGPONG_STATUS);

	return !!(busPingPongStatus & VFE_AWB_PINGPONG_STATUS_BIT);

}

static uint32_t vfe_read_awb_buf_addr(boolean pingpong)
{
	if (pingpong == FALSE)
		return readl(ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PING_ADDR);
	else
		return readl(ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PONG_ADDR);
}

static void vfe_update_awb_buf_addr(boolean pingpong, uint32_t addr)
{
	if (pingpong == FALSE)
		writel(addr, ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PING_ADDR);
	else
		writel(addr, ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PONG_ADDR);
}

static boolean vfe_send_awb_stats_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	uint32_t awbBufAddress = (uint32_t)data;

	/* fill message with right content. */
	/* @todo This is causing issues, need further investigate */
	/* spin_lock_irqsave(&ctrl->state_lock, flags); */
	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;

	msg->_u.msgStatsWbExp.awbBuffer = awbBufAddress;
	msg->_u.msgStatsWbExp.frameCounter = ctrl->vfeFrameId;


	ctrl->awbStatsControl.ackPending = TRUE;

	vfe_addr_convert(&(rp->phy),
			rp->type, msg,
			NULL, NULL);

	return TRUE;
}

static void vfe_process_stats_awb_irq(void)
{
	boolean bufferAvailable;

	if (!(ctrl->awbStatsControl.ackPending)) {

		ctrl->awbStatsControl.pingPongStatus =
			vfe_get_awb_pingpong_status();

		bufferAvailable = (ctrl->awbStatsControl.pingPongStatus) ^ 1;

		ctrl->awbStatsControl.bufToRender =
			vfe_read_awb_buf_addr(bufferAvailable);

		vfe_update_awb_buf_addr(bufferAvailable,
			ctrl->awbStatsControl.nextFrameAddrBuf);

		vfe_proc_ops(VFE_MSG_ID_STATS_WB_EXP,
			(void *)ctrl->awbStatsControl.bufToRender);

	} else
		ctrl->awbStatsControl.droppedStatsFrameCount++;
}

static void vfe_write_gamma_table(uint8_t channel,
	boolean bank, int16_t *pTable)
{
	uint16_t i;

	enum VFE_DMI_RAM_SEL dmiRamSel = NO_MEM_SELECTED;

	switch (channel) {
	case 0:
		if (bank == 0)
			dmiRamSel = RGBLUT_RAM_CH0_BANK0;
		else
			dmiRamSel = RGBLUT_RAM_CH0_BANK1;
		break;

	case 1:
		if (bank == 0)
			dmiRamSel = RGBLUT_RAM_CH1_BANK0;
		else
			dmiRamSel = RGBLUT_RAM_CH1_BANK1;
		break;

	case 2:
		if (bank == 0)
			dmiRamSel = RGBLUT_RAM_CH2_BANK0;
		else
			dmiRamSel = RGBLUT_RAM_CH2_BANK1;
		break;

	default:
		break;
	}

	vfe_program_dmi_cfg(dmiRamSel);

	for (i = 0; i < VFE_GAMMA_TABLE_LENGTH; i++) {
		writel((uint32_t)(*pTable), ctrl->vfebase + VFE_DMI_DATA_LO);
		pTable++;
	}

	/* After DMI transfer, need to set the DMI_CFG to unselect any SRAM
	unselect the SRAM Bank. */
	writel(VFE_DMI_CFG_DEFAULT, ctrl->vfebase + VFE_DMI_CFG);
}

static void vfe_prog_hw_testgen_cmd(uint32_t value)
{
	writel(value, ctrl->vfebase + VFE_HW_TESTGEN_CMD);
}

static inline void vfe_read_irq_status(struct vfe_irq_thread_msg *out)
{
	uint32_t *temp;

	memset(out, 0, sizeof(struct vfe_irq_thread_msg));

	temp = (uint32_t *)(ctrl->vfebase + VFE_IRQ_STATUS);
	out->vfeIrqStatus = readl(temp);

	temp = (uint32_t *)(ctrl->vfebase + CAMIF_STATUS);
	out->camifStatus = readl(temp);

/*	this for YUV performance tuning
	writel(0x7, ctrl->vfebase + CAMIF_COMMAND);
	writel(0x3, ctrl->vfebase + CAMIF_COMMAND);
	CDBG("camifStatus  = 0x%x\n", out->camifStatus);
*/
/*
	temp = (uint32_t *)(ctrl->vfebase + VFE_DEMOSAIC_STATUS);
	out->demosaicStatus = readl(temp);

	temp = (uint32_t *)(ctrl->vfebase + VFE_ASF_MAX_EDGE);
	out->asfMaxEdge = readl(temp);

	temp = (uint32_t *)(ctrl->vfebase + VFE_BUS_ENC_Y_WR_PM_STATS_0);
*/

#if 0
	out->pmInfo.encPathPmInfo.yWrPmStats0      = readl(temp++);
	out->pmInfo.encPathPmInfo.yWrPmStats1      = readl(temp++);
	out->pmInfo.encPathPmInfo.cbcrWrPmStats0   = readl(temp++);
	out->pmInfo.encPathPmInfo.cbcrWrPmStats1   = readl(temp++);
	out->pmInfo.viewPathPmInfo.yWrPmStats0     = readl(temp++);
	out->pmInfo.viewPathPmInfo.yWrPmStats1     = readl(temp++);
	out->pmInfo.viewPathPmInfo.cbcrWrPmStats0  = readl(temp++);
	out->pmInfo.viewPathPmInfo.cbcrWrPmStats1  = readl(temp);
#endif /* if 0 Jeff */
}

static void
vfe_parse_interrupt_status(struct vfe_interrupt_status *ret,
uint32_t irqStatusIn)
{
	struct vfe_irqenable hwstat;
	boolean temp;

	memset(&hwstat, 0, sizeof(hwstat));
	memset(ret, 0, sizeof(*ret));

	hwstat = *((struct vfe_irqenable *)(&irqStatusIn));

	ret->camifErrorIrq = hwstat.camifErrorIrq;
	ret->camifSofIrq = hwstat.camifSofIrq;
	ret->camifEolIrq = hwstat.camifEolIrq;
	ret->camifEofIrq = hwstat.camifEofIrq;
	ret->camifEpoch1Irq = hwstat.camifEpoch1Irq;
	ret->camifEpoch2Irq = hwstat.camifEpoch2Irq;
	ret->camifOverflowIrq = hwstat.camifOverflowIrq;
	ret->ceIrq = hwstat.ceIrq;
	ret->regUpdateIrq = hwstat.regUpdateIrq;
	ret->resetAckIrq = hwstat.resetAckIrq;
	ret->encYPingpongIrq = hwstat.encYPingpongIrq;
	ret->encCbcrPingpongIrq = hwstat.encCbcrPingpongIrq;
	ret->viewYPingpongIrq = hwstat.viewYPingpongIrq;
	ret->viewCbcrPingpongIrq = hwstat.viewCbcrPingpongIrq;
	ret->rdPingpongIrq = hwstat.rdPingpongIrq;
	ret->afPingpongIrq = hwstat.afPingpongIrq;
	ret->awbPingpongIrq = hwstat.awbPingpongIrq;
	ret->histPingpongIrq = hwstat.histPingpongIrq;
	ret->encIrq = hwstat.encIrq;
	ret->viewIrq = hwstat.viewIrq;
	ret->busOverflowIrq = hwstat.busOverflowIrq;
	ret->afOverflowIrq = hwstat.afOverflowIrq;
	ret->awbOverflowIrq = hwstat.awbOverflowIrq;
	ret->syncTimer0Irq = hwstat.syncTimer0Irq;
	ret->syncTimer1Irq = hwstat.syncTimer1Irq;
	ret->syncTimer2Irq = hwstat.syncTimer2Irq;
	ret->asyncTimer0Irq = hwstat.asyncTimer0Irq;
	ret->asyncTimer1Irq = hwstat.asyncTimer1Irq;
	ret->asyncTimer2Irq = hwstat.asyncTimer2Irq;
	ret->asyncTimer3Irq = hwstat.asyncTimer3Irq;
	ret->axiErrorIrq = hwstat.axiErrorIrq;
	ret->violationIrq = hwstat.violationIrq;

	/* logic OR of any error bits
	 * although each irq corresponds to a bit, the data type here is a
	 * boolean already. hence use logic operation.
	 */
	temp =
	    ret->camifErrorIrq ||
	    ret->camifOverflowIrq ||
	    ret->afOverflowIrq ||
	    ret->awbOverflowIrq ||
	    ret->awbPingpongIrq ||
	    ret->afPingpongIrq ||
	    ret->busOverflowIrq || ret->axiErrorIrq || ret->violationIrq;

	ret->anyErrorIrqs = temp;

	/* logic OR of any output path bits*/
	temp = ret->encYPingpongIrq || ret->encCbcrPingpongIrq || ret->encIrq;

	ret->anyOutput2PathIrqs = temp;

	temp = ret->viewYPingpongIrq || ret->viewCbcrPingpongIrq ||
		ret->viewIrq;

	ret->anyOutput1PathIrqs = temp;

	ret->anyOutputPathIrqs =
	    ret->anyOutput1PathIrqs || ret->anyOutput2PathIrqs;

	/* logic OR of any sync timer bits*/
	temp = ret->syncTimer0Irq || ret->syncTimer1Irq || ret->syncTimer2Irq;

	ret->anySyncTimerIrqs = temp;

	/* logic OR of any async timer bits*/
	temp =
	    ret->asyncTimer0Irq ||
	    ret->asyncTimer1Irq || ret->asyncTimer2Irq || ret->asyncTimer3Irq;

	ret->anyAsyncTimerIrqs = temp;

	/* bool for all interrupts that are not allowed in idle state */
	temp =
	    ret->anyErrorIrqs ||
	    ret->anyOutputPathIrqs ||
	    ret->anySyncTimerIrqs ||
	    ret->regUpdateIrq ||
	    ret->awbPingpongIrq ||
	    ret->afPingpongIrq ||
	    ret->camifSofIrq || ret->camifEpoch2Irq || ret->camifEpoch1Irq;

	ret->anyIrqForActiveStatesOnly = temp;
}

static void
vfe_get_asf_frame_info(struct vfe_frame_asf_info *rc,
struct vfe_irq_thread_msg *in)
{
	struct vfe_asf_info     asfInfoTemp;

	memset(rc, 0, sizeof(*rc));
	memset(&asfInfoTemp, 0, sizeof(asfInfoTemp));

	asfInfoTemp = *((struct vfe_asf_info *)(&(in->asfMaxEdge)));

	rc->asfHbiCount = asfInfoTemp.HBICount;
	rc->asfMaxEdge = asfInfoTemp.maxEdge;
}

static void
vfe_get_demosaic_frame_info(struct vfe_frame_bpc_info *rc,
struct vfe_irq_thread_msg *in)
{
	struct vfe_bps_info     bpcInfoTemp;

	memset(rc, 0, sizeof(*rc));
	memset(&bpcInfoTemp, 0, sizeof(bpcInfoTemp));

	bpcInfoTemp = *((struct vfe_bps_info *)(&(in->demosaicStatus)));

	rc->greenDefectPixelCount = bpcInfoTemp.greenBadPixelCount;

	rc->redBlueDefectPixelCount = bpcInfoTemp.RedBlueBadPixelCount;
}

static void
vfe_get_camif_status(struct vfe_msg_camif_status *rc,
struct vfe_irq_thread_msg *in)
{
	struct vfe_camif_stats camifStatusTemp;

	memset(rc, 0, sizeof(*rc));
	memset(&camifStatusTemp, 0, sizeof(camifStatusTemp));

	camifStatusTemp = *((struct vfe_camif_stats *)(&(in->camifStatus)));

	rc->camifState = (boolean) camifStatusTemp.camifHalt;
	rc->lineCount = camifStatusTemp.lineCount;
	rc->pixelCount = camifStatusTemp.pixelCount;
}

static void
vfe_get_performance_monitor_data(struct vfe_bus_performance_monitor *rc,
		struct vfe_irq_thread_msg *in)
{
	memset(rc, 0, sizeof(*rc));

	rc->encPathPmInfo.yWrPmStats0 = in->pmInfo.encPathPmInfo.yWrPmStats0;
	rc->encPathPmInfo.yWrPmStats1 = in->pmInfo.encPathPmInfo.yWrPmStats1;
	rc->encPathPmInfo.cbcrWrPmStats0 =
		in->pmInfo.encPathPmInfo.cbcrWrPmStats0;
	rc->encPathPmInfo.cbcrWrPmStats1 =
		in->pmInfo.encPathPmInfo.cbcrWrPmStats1;
	rc->viewPathPmInfo.yWrPmStats0 = in->pmInfo.viewPathPmInfo.yWrPmStats0;
	rc->viewPathPmInfo.yWrPmStats1 = in->pmInfo.viewPathPmInfo.yWrPmStats1;
	rc->viewPathPmInfo.cbcrWrPmStats0 =
		in->pmInfo.viewPathPmInfo.cbcrWrPmStats0;
	rc->viewPathPmInfo.cbcrWrPmStats1 =
	    in->pmInfo.viewPathPmInfo.cbcrWrPmStats1;
}

static void vfe_process_reg_update_irq(void)
{
	CDBG("vfe_process_reg_update_irq: ackPendingFlag is %d\n",
	ctrl->vfeStartAckPendingFlag);
	if (ctrl->vfeStartAckPendingFlag == TRUE) {
		vfe_proc_ops(VFE_MSG_ID_START_ACK, NULL);
		ctrl->vfeStartAckPendingFlag = FALSE;
	} else
		vfe_proc_ops(VFE_MSG_ID_UPDATE_ACK, NULL);
}

static void vfe_process_reset_irq(void)
{
	/* unsigned long flags; */

	/* @todo This is causing issues, need further investigate */
	/* spin_lock_irqsave(&ctrl->state_lock, flags); */
	ctrl->vstate = VFE_STATE_IDLE;
	/* spin_unlock_irqrestore(&ctrl->state_lock, flags); */

	if (ctrl->vfeStopAckPending == TRUE) {
		ctrl->vfeStopAckPending = FALSE;
		vfe_proc_ops(VFE_MSG_ID_STOP_ACK, NULL);
	} else {
		vfe_set_default_reg_values();
		vfe_proc_ops(VFE_MSG_ID_RESET_ACK, NULL);
	}
}

static void vfe_process_pingpong_irq(struct vfe_output_path *in,
	uint8_t fragmentCount)
{
	uint16_t circularIndex;
	uint32_t nextFragmentAddr;

	/* get next fragment address from circular buffer */
	circularIndex    = (in->fragIndex) % (2 * fragmentCount);
	nextFragmentAddr = in->addressBuffer[circularIndex];

	in->fragIndex = circularIndex + 1;

	/* use next fragment to program hardware ping/pong address. */
	if (in->hwCurrentFlag == ping) {
		writel(nextFragmentAddr, in->hwRegPingAddress);
		in->hwCurrentFlag = pong;

	} else {
		writel(nextFragmentAddr, in->hwRegPongAddress);
		in->hwCurrentFlag = ping;
	}
}

static boolean vfe_send_video_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	struct vfe_msg_output *pPayload = data;

	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;
	memcpy(&(msg->_u),
		(void *)pPayload, sizeof(struct vfe_msg_output));

	rp->phy.output_id = OUTPUT_TYPE_V;
	CDBG("vfe_send_video_msg rp->type= %d\n", rp->type);

	vfe_addr_convert(&(rp->phy),
			rp->type, msg,
			&(rp->extdata), &(rp->extlen));
	return TRUE;
}

static boolean vfe_send_preview_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	struct vfe_msg_output *pPayload = data;

	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;

	memcpy(&(msg->_u), (void *)pPayload, sizeof(struct vfe_msg_output));

	rp->phy.output_id = OUTPUT_TYPE_P;
	CDBG("vfe_send_preview_msg rp->type= %d\n", rp->type);

	vfe_addr_convert(&(rp->phy),
			rp->type, msg,
			&(rp->extdata), &(rp->extlen));

	return TRUE;
}


static boolean vfe_send_thumbnail_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	struct vfe_msg_output *pPayload = data;

	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;

	memcpy(&(msg->_u), (void *)pPayload, sizeof(struct vfe_msg_output));

	rp->phy.output_id = OUTPUT_TYPE_T;
	CDBG("vfe_send_thumbnail_msg rp->type= %d\n", rp->type);

	if (ctrl->viewPath.snapshotPendingCount <= 1)
		ctrl->viewPath.ackPending = FALSE;

	vfe_addr_convert(&(rp->phy),
			rp->type, msg,
			&(rp->extdata), &(rp->extlen));
	return TRUE;
}

static boolean vfe_send_mainimage_msg(struct msm_vfe_resp *rp,
		struct vfe_message *msg, void *data)
{
	struct vfe_msg_output *pPayload = data;

	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return FALSE;

	memcpy(&(msg->_u), (void *)pPayload, sizeof(struct vfe_msg_output));

	rp->phy.output_id = OUTPUT_TYPE_S;
	CDBG("vfe_send_mainimage_msg rp->type= %d\n", rp->type);

	if (ctrl->encPath.snapshotPendingCount <= 1) {
		ctrl->encPath.ackPending = FALSE;
	}

	vfe_addr_convert(&(rp->phy),
			rp->type, msg,
			&(rp->extdata), &(rp->extlen));

	return TRUE;
}

static void vfe_send_output_msg(boolean whichOutputPath,
	uint32_t yPathAddr, uint32_t cbcrPathAddr)
{
	struct vfe_msg_output msgPayload;

	msgPayload.yBuffer = yPathAddr;
	msgPayload.cbcrBuffer = cbcrPathAddr;

	/* asf info is common for both output1 and output2 */
#if 0
	msgPayload.asfInfo.asfHbiCount = ctrl->vfeAsfFrameInfo.asfHbiCount;
	msgPayload.asfInfo.asfMaxEdge = ctrl->vfeAsfFrameInfo.asfMaxEdge;

	/* demosaic info is common for both output1 and output2 */
	msgPayload.bpcInfo.greenDefectPixelCount =
		ctrl->vfeBpcFrameInfo.greenDefectPixelCount;
	msgPayload.bpcInfo.redBlueDefectPixelCount =
		ctrl->vfeBpcFrameInfo.redBlueDefectPixelCount;
#endif /* if 0 */

	/* frame ID is common for both paths. */
	msgPayload.frameCounter = ctrl->vfeFrameId;

	if (whichOutputPath) {
		/* msgPayload.pmData = ctrl->vfePmData.encPathPmInfo; */
		ctrl->encPath.ackPending = TRUE;

		if (ctrl->vfeOperationMode == 0) {
			if (ctrl->axiOutputMode ==
				VFE_AXI_OUTPUT_MODE_Output1AndOutput2) {
				/* video mode */
				vfe_proc_ops(VFE_MSG_ID_OUTPUT_V, &msgPayload);
			} else{
				/* preview mode */
				vfe_proc_ops(VFE_MSG_ID_OUTPUT_P, &msgPayload);
			}
		} else {
			vfe_proc_ops(VFE_MSG_ID_OUTPUT_S, &msgPayload);
		}

	} else {
		/* physical output1 path from vfe */
		ctrl->viewPath.ackPending = TRUE;

		if (ctrl->vfeOperationMode == 0) {
			vfe_proc_ops(VFE_MSG_ID_OUTPUT_P, &msgPayload);
			CDBG(" video mode display output.\n");

		} else{
			vfe_proc_ops(VFE_MSG_ID_OUTPUT_T, &msgPayload);
			CDBG(" snapshot mode thumbnail output.\n");
		}
	}
}

static void vfe_process_frame_done_irq_multi_frag(struct vfe_output_path_combo
						  *in)
{
	uint32_t yAddress, cbcrAddress;
	uint16_t idx;
	uint32_t *ptrY;
	uint32_t *ptrCbcr;
	const uint32_t *ptrSrc;
	uint8_t i;

	if (!in->ackPending) {

		idx = (in->currentFrame) * (in->fragCount);

		/* Send output message. */
		yAddress = in->yPath.addressBuffer[idx];
		cbcrAddress = in->cbcrPath.addressBuffer[idx];

		/* copy next frame to current frame. */
		ptrSrc  = in->nextFrameAddrBuf;
		ptrY = (uint32_t *)&in->yPath.addressBuffer[idx];
		ptrCbcr = (uint32_t *)&in->cbcrPath.addressBuffer[idx];

		/* Copy Y address */
		for (i = 0; i < in->fragCount; i++)
			*ptrY++ = *ptrSrc++;

		/* Copy Cbcr address */
		for (i = 0; i < in->fragCount; i++)
			*ptrCbcr++ = *ptrSrc++;

		vfe_send_output_msg(in->whichOutputPath, yAddress, cbcrAddress);

	} else {
		if (in->whichOutputPath == 0)
			ctrl->vfeDroppedFrameCounts.output1Count++;

		if (in->whichOutputPath == 1)
			ctrl->vfeDroppedFrameCounts.output2Count++;
	}

	/* toggle current frame. */
	in->currentFrame = in->currentFrame^1;

	if (ctrl->vfeOperationMode)
		in->snapshotPendingCount--;
}

static void vfe_process_frame_done_irq_no_frag_io(
		struct vfe_output_path_combo *in,
		uint32_t *pNextAddr,
	uint32_t *pdestRenderAddr)
{
	uint32_t busPingPongStatus;
	uint32_t tempAddress;

	/* 1. read hw status register. */
	busPingPongStatus = readl(ctrl->vfebase + VFE_BUS_PINGPONG_STATUS);

	CDBG("hardware status is 0x%x\n", busPingPongStatus);

	/* 2. determine ping or pong */
	/* use cbcr status */
	busPingPongStatus = busPingPongStatus & (1<<(in->cbcrStatusBit));

	/* 3. read out address and update address */
	if (busPingPongStatus == 0) {
		/* hw is working on ping, render pong buffer */
		/* a. read out pong address */
		/* read out y address. */
		tempAddress = readl(in->yPath.hwRegPongAddress);

		CDBG("pong 1 addr = 0x%x\n", tempAddress);
		*pdestRenderAddr++ = tempAddress;
		/* read out cbcr address. */
		tempAddress = readl(in->cbcrPath.hwRegPongAddress);

		CDBG("pong 2 addr = 0x%x\n", tempAddress);
		*pdestRenderAddr = tempAddress;

		/* b. update pong address */
		writel(*pNextAddr++, in->yPath.hwRegPongAddress);
		writel(*pNextAddr, in->cbcrPath.hwRegPongAddress);
	} else {
		/* hw is working on pong, render ping buffer */

		/* a. read out ping address */
		tempAddress = readl(in->yPath.hwRegPingAddress);
		CDBG("ping 1 addr = 0x%x\n", tempAddress);
		*pdestRenderAddr++ = tempAddress;
		tempAddress = readl(in->cbcrPath.hwRegPingAddress);

		CDBG("ping 2 addr = 0x%x\n", tempAddress);
		*pdestRenderAddr = tempAddress;

		/* b. update ping address */
		writel(*pNextAddr++, in->yPath.hwRegPingAddress);
		CDBG("NextAddress = 0x%x\n", *pNextAddr);
		writel(*pNextAddr, in->cbcrPath.hwRegPingAddress);
	}
}

static void vfe_process_frame_done_irq_no_frag(struct vfe_output_path_combo *in)
{
	uint32_t addressToRender[2];

	if (!in->ackPending) {
		vfe_process_frame_done_irq_no_frag_io(in,
						      in->nextFrameAddrBuf,
						      addressToRender);

		/* use addressToRender to send out message. */
		vfe_send_output_msg(in->whichOutputPath,
				addressToRender[0], addressToRender[1]);

	} else {
		/* ackPending is still there, accumulate dropped frame count.
		 * These count can be read through ioctrl command. */
		CDBG("waiting frame ACK\n");

		if (in->whichOutputPath == 0)
			ctrl->vfeDroppedFrameCounts.output1Count++;

		if (in->whichOutputPath == 1)
			ctrl->vfeDroppedFrameCounts.output2Count++;
	}

	/* in case of multishot when upper layer did not ack, there will still
	 * be a snapshot done msg sent out, even though the number of frames
	 * sent out may be less than the desired number of frames.  snapshot
	 * done msg would be helpful to indicate that vfe pipeline has stop,
	 * and in good known state.
	 */
	if (ctrl->vfeOperationMode)
		in->snapshotPendingCount--;
}

static void vfe_process_output_path_irq(struct vfe_interrupt_status *irqstatus)
{
	/* unsigned long flags; */

	/* process the view path interrupts */
	if (irqstatus->anyOutput1PathIrqs) {
		if (ctrl->viewPath.multiFrag) {

			if (irqstatus->viewCbcrPingpongIrq)
				vfe_process_pingpong_irq(&
							 (ctrl->viewPath.
							  cbcrPath),
							 ctrl->viewPath.
							 fragCount);

			if (irqstatus->viewYPingpongIrq)
				vfe_process_pingpong_irq(&
							 (ctrl->viewPath.yPath),
							 ctrl->viewPath.
							 fragCount);

			if (irqstatus->viewIrq)
				vfe_process_frame_done_irq_multi_frag(&ctrl->
								      viewPath);

		} else {
			/* typical case for no fragment,
			 only frame done irq is enabled. */
			if (irqstatus->viewIrq)
				vfe_process_frame_done_irq_no_frag(&ctrl->
								   viewPath);
		}
	}

	/* process the encoder path interrupts */
	if (irqstatus->anyOutput2PathIrqs) {
		if (ctrl->encPath.multiFrag) {
			if (irqstatus->encCbcrPingpongIrq)
				vfe_process_pingpong_irq(&
							 (ctrl->encPath.
							  cbcrPath),
							 ctrl->encPath.
							 fragCount);

			if (irqstatus->encYPingpongIrq)
				vfe_process_pingpong_irq(&(ctrl->encPath.yPath),
							 ctrl->encPath.
							 fragCount);

			if (irqstatus->encIrq)
				vfe_process_frame_done_irq_multi_frag(&ctrl->
								      encPath);

		} else {
			if (irqstatus->encIrq)
				vfe_process_frame_done_irq_no_frag(&ctrl->
								   encPath);
		}
	}

	if (ctrl->vfeOperationMode) {
		if ((ctrl->encPath.snapshotPendingCount == 0) &&
				(ctrl->viewPath.snapshotPendingCount == 0)) {

			/* @todo This is causing issues, further investigate */
			/* spin_lock_irqsave(&ctrl->state_lock, flags); */
			ctrl->vstate = VFE_STATE_IDLE;
			/* spin_unlock_irqrestore(&ctrl->state_lock, flags); */

			vfe_proc_ops(VFE_MSG_ID_SNAPSHOT_DONE, NULL);
			vfe_camif_stop_immediately();
			vfe_prog_hw_testgen_cmd(VFE_TEST_GEN_STOP);
			vfe_pm_stop();
		}
	}
}

static void __vfe_do_tasklet(struct isr_queue_cmd *qcmd)
{
	if (qcmd->vfeInterruptStatus.regUpdateIrq) {
		CDBG("irq regUpdateIrq\n");
		vfe_process_reg_update_irq();
	}

	if (qcmd->vfeInterruptStatus.resetAckIrq) {
		CDBG("%s: process resetAckIrq\n", __func__);
		vfe_process_reset_irq();
	}

	if (ctrl->vstate != VFE_STATE_ACTIVE)
		return;

#if 0
	if (qcmd->vfeInterruptStatus.camifEpoch1Irq)
		vfe_proc_ops(VFE_MSG_ID_EPOCH1);

	if (qcmd->vfeInterruptStatus.camifEpoch2Irq)
		vfe_proc_ops(VFE_MSG_ID_EPOCH2);
#endif /* Jeff */

	/* next, check output path related interrupts. */
	if (qcmd->vfeInterruptStatus.anyOutputPathIrqs) {
		CDBG("irq: anyOutputPathIrqs\n");
		vfe_process_output_path_irq(&qcmd->vfeInterruptStatus);
	}

	if (qcmd->vfeInterruptStatus.afPingpongIrq)
		vfe_process_stats_af_irq();

	if (qcmd->vfeInterruptStatus.awbPingpongIrq)
		vfe_process_stats_awb_irq();

	/* any error irqs*/
	if (qcmd->vfeInterruptStatus.anyErrorIrqs)
		vfe_process_error_irq(&qcmd->vfeInterruptStatus);

#if 0
	if (qcmd->vfeInterruptStatus.anySyncTimerIrqs)
		vfe_process_sync_timer_irq();

	if (qcmd->vfeInterruptStatus.anyAsyncTimerIrqs)
		vfe_process_async_timer_irq();
#endif /* Jeff */

	if (qcmd->vfeInterruptStatus.camifSofIrq) {
		CDBG("irq: camifSofIrq\n");
		vfe_process_camif_sof_irq();
	}
}

static struct isr_queue_cmd *get_irq_cmd_nosync(void)
{
	int old_get = ctrl->irq_get++;
	ctrl->irq_get = ctrl->irq_get % ARRAY_SIZE(ctrl->irqs);
	if (ctrl->irq_get == ctrl->irq_put) {
		pr_err("%s: out of irq command packets\n", __func__);
		ctrl->irq_get = old_get;
		return NULL;
	}

	return ctrl->irqs + old_get;
}

static struct isr_queue_cmd *next_irq_cmd(void)
{
	unsigned long flags;
	struct isr_queue_cmd *cmd;
	spin_lock_irqsave(&ctrl->irqs_lock, flags);
	if (ctrl->irq_get == ctrl->irq_put) {
		spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
		return NULL; /* already empty */
	}
	cmd = ctrl->irqs + ctrl->irq_put;
	spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
	return cmd;
}

static void put_irq_cmd(void)
{
	unsigned long flags;
	spin_lock_irqsave(&ctrl->irqs_lock, flags);
	if (ctrl->irq_get == ctrl->irq_put) {
		spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
		return; /* already empty */
	}
	ctrl->irq_put++;
	ctrl->irq_put %= ARRAY_SIZE(ctrl->irqs);
	spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
}

static void vfe_do_tasklet(unsigned long data)
{
	int cnt = 0;
	unsigned long flags;
	struct isr_queue_cmd *qcmd = NULL;

	spin_lock_irqsave(&msm_vfe_ctrl_lock, flags);
	if (!ctrl) {
		spin_unlock_irqrestore(&msm_vfe_ctrl_lock, flags);
		return;
	}

	CDBG("%s\n", __func__);

	while ((qcmd = next_irq_cmd())) {
		__vfe_do_tasklet(qcmd);
		put_irq_cmd();
		cnt++;
	}

	if (cnt > ARRAY_SIZE(ctrl->irqs)/2)
		CDBG("%s: serviced %d vfe interrupts\n", __func__, cnt);

	spin_unlock_irqrestore(&msm_vfe_ctrl_lock, flags);
}

DECLARE_TASKLET(vfe_tasklet, vfe_do_tasklet, 0);

static irqreturn_t vfe_parse_irq(int irq_num, void *data)
{
	unsigned long flags;
	uint32_t irqStatusLocal;
	struct vfe_irq_thread_msg irq;
	struct isr_queue_cmd *qcmd;

	CDBG("vfe_parse_irq\n");

	if (!atomic_read(&ctrl->vfe_serv_interrupt))
		return IRQ_HANDLED;

	vfe_read_irq_status(&irq);

	if (irq.vfeIrqStatus == 0) {
		CDBG("vfe_parse_irq: irq.vfeIrqStatus is 0\n");
		return IRQ_HANDLED;
	}

	if (ctrl->vfeStopAckPending)
		irqStatusLocal = (VFE_IMASK_WHILE_STOPPING & irq.vfeIrqStatus);
	else
		irqStatusLocal =
			((ctrl->vfeImaskPacked | VFE_IMASK_ERROR_ONLY) &
				irq.vfeIrqStatus);

	spin_lock_irqsave(&ctrl->irqs_lock, flags);
	qcmd = get_irq_cmd_nosync();
	if (!qcmd) {
		spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
		goto done;
	}
	/* first parse the interrupt status to local data structures. */
	vfe_parse_interrupt_status(&qcmd->vfeInterruptStatus, irqStatusLocal);
	vfe_get_asf_frame_info(&qcmd->vfeAsfFrameInfo, &irq);
	vfe_get_demosaic_frame_info(&qcmd->vfeBpcFrameInfo, &irq);
	vfe_get_camif_status(&qcmd->vfeCamifStatusLocal, &irq);
	vfe_get_performance_monitor_data(&qcmd->vfePmData, &irq);
	spin_unlock_irqrestore(&ctrl->irqs_lock, flags);
	tasklet_schedule(&vfe_tasklet);

done:
	/* clear the pending interrupt of the same kind.*/
	writel(irq.vfeIrqStatus, ctrl->vfebase + VFE_IRQ_CLEAR);

	return IRQ_HANDLED;
}

int vfe_cmd_init(struct msm_vfe_callback *presp,
	struct platform_device *pdev, void *sdata)
{
	struct resource	*vfemem, *vfeirq, *vfeio;
	int rc;
	struct msm_camera_sensor_info *s_info;
	s_info = pdev->dev.platform_data;

	pdev->resource = s_info->resource;
	pdev->num_resources = s_info->num_resources;

	vfemem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!vfemem) {
		pr_err("%s: no mem resource\n", __func__);
		return -ENODEV;
	}

	vfeirq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
	if (!vfeirq) {
		pr_err("%s: no irq resource\n", __func__);
		return -ENODEV;
	}

	vfeio = request_mem_region(vfemem->start,
		resource_size(vfemem), pdev->name);
	if (!vfeio) {
		pr_err("%s: VFE region already claimed\n", __func__);
		return -EBUSY;
	}

	ctrl = kzalloc(sizeof(struct msm_vfe8x_ctrl), GFP_KERNEL);
	if (!ctrl) {
		pr_err("%s: out of memory\n", __func__);
		rc = -ENOMEM;
		goto cmd_init_failed1;
	}
	atomic_set(&ctrl->vfe_serv_interrupt, 0);
	ctrl->vfeirq  = vfeirq->start;

	ctrl->vfebase =
		ioremap(vfemem->start, (vfemem->end - vfemem->start) + 1);
	if (!ctrl->vfebase) {
		pr_err("%s: ioremap failed\n", __func__);
		rc = -ENOMEM;
		goto cmd_init_failed2;
	}

	rc = request_irq(ctrl->vfeirq, vfe_parse_irq,
		IRQF_TRIGGER_RISING, "vfe", 0);
	if (rc < 0) {
		pr_err("%s: request_irq(%d) failed\n", __func__, ctrl->vfeirq);
		goto cmd_init_failed2;
	}

	if (presp && presp->vfe_resp)
		ctrl->resp = presp;
	else {
		pr_err("%s: no vfe_resp function\n", __func__);

		rc = -EIO;
		goto cmd_init_failed3;
	}

	ctrl->syncdata = sdata;
	return 0;

cmd_init_failed3:
	disable_irq(ctrl->vfeirq);
	free_irq(ctrl->vfeirq, 0);
	iounmap(ctrl->vfebase);
cmd_init_failed2:
	kfree(ctrl);
cmd_init_failed1:
	release_mem_region(vfemem->start, (vfemem->end - vfemem->start) + 1);
	return rc;
}

void vfe_cmd_release(struct platform_device *dev)
{
	struct resource	*mem;
	unsigned long flags;
	atomic_set(&ctrl->vfe_serv_interrupt, 0);
	disable_irq(ctrl->vfeirq);
	free_irq(ctrl->vfeirq, 0);

	iounmap(ctrl->vfebase);
	mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
	release_mem_region(mem->start, (mem->end - mem->start) + 1);

	spin_lock_irqsave(&msm_vfe_ctrl_lock, flags);
	kfree(ctrl);
	ctrl = 0;
	spin_unlock_irqrestore(&msm_vfe_ctrl_lock, flags);
}

void vfe_stats_af_stop(void)
{
	ctrl->vfeStatsCmdLocal.autoFocusEnable = FALSE;
	ctrl->vfeImaskLocal.afPingpongIrq = FALSE;
}

void vfe_stop(void)
{
	int spin_cnt = 0;
	uint32_t vfeAxiStauts;

	/* for reset hw modules, and send msg when reset_irq comes.*/
	ctrl->vfeStopAckPending = TRUE;

	ctrl->vfeStatsPingPongReloadFlag = FALSE;
	vfe_pm_stop();

	/* disable all interrupts.  */
	vfe_program_irq_mask(VFE_DISABLE_ALL_IRQS);

	/* in either continuous or snapshot mode, stop command can be issued
	 * at any time.
	 */
	vfe_camif_stop_immediately();
	vfe_program_axi_cmd(AXI_HALT);
	vfe_prog_hw_testgen_cmd(VFE_TEST_GEN_STOP);

	do {
		vfeAxiStauts = vfe_read_axi_status();
		spin_cnt++;
	} while (!(vfeAxiStauts & AXI_STATUS_BUSY_MASK));
	if (spin_cnt > 1)
		pr_warning("%s: spin_cnt %d\n", __func__, spin_cnt);

	vfe_program_axi_cmd(AXI_HALT_CLEAR);

	/* clear all pending interrupts */
	writel(VFE_CLEAR_ALL_IRQS, ctrl->vfebase + VFE_IRQ_CLEAR);

	/* enable reset_ack and async timer interrupt only while stopping
	 * the pipeline.
	 */
	vfe_program_irq_mask(VFE_IMASK_WHILE_STOPPING);

	vfe_program_global_reset_cmd(VFE_RESET_UPON_STOP_CMD);
}

void vfe_update(void)
{
	ctrl->vfeModuleEnableLocal.statsEnable =
		ctrl->vfeStatsCmdLocal.autoFocusEnable |
		ctrl->vfeStatsCmdLocal.axwEnable;

	vfe_reg_module_cfg(&ctrl->vfeModuleEnableLocal);

	vfe_program_stats_cmd(&ctrl->vfeStatsCmdLocal);

	ctrl->vfeImaskPacked = vfe_irq_pack(ctrl->vfeImaskLocal);
	vfe_program_irq_mask(ctrl->vfeImaskPacked);

	if ((ctrl->vfeModuleEnableLocal.statsEnable == TRUE) &&
			(ctrl->vfeStatsPingPongReloadFlag == FALSE)) {
		ctrl->vfeStatsPingPongReloadFlag = TRUE;

		ctrl->vfeBusCmdLocal.statsPingpongReload = TRUE;
		vfe_reg_bus_cmd(&ctrl->vfeBusCmdLocal);
	}

	vfe_program_reg_update_cmd(VFE_REG_UPDATE_TRIGGER);
}

int vfe_rgb_gamma_update(struct vfe_cmd_rgb_gamma_config *in)
{
	int rc = 0;

	ctrl->vfeModuleEnableLocal.rgbLUTEnable = in->enable;

	switch (in->channelSelect) {
	case RGB_GAMMA_CH0_SELECTED:
		ctrl->vfeGammaLutSel.ch0BankSelect ^= 1;
		vfe_write_gamma_table(0,
				      ctrl->vfeGammaLutSel.ch0BankSelect,
				      in->table);
		break;

	case RGB_GAMMA_CH1_SELECTED:
		ctrl->vfeGammaLutSel.ch1BankSelect ^= 1;
		vfe_write_gamma_table(1,
				      ctrl->vfeGammaLutSel.ch1BankSelect,
				      in->table);
		break;

	case RGB_GAMMA_CH2_SELECTED:
		ctrl->vfeGammaLutSel.ch2BankSelect ^= 1;
		vfe_write_gamma_table(2,
				      ctrl->vfeGammaLutSel.ch2BankSelect,
				      in->table);
		break;

	case RGB_GAMMA_CH0_CH1_SELECTED:
		ctrl->vfeGammaLutSel.ch0BankSelect ^= 1;
		ctrl->vfeGammaLutSel.ch1BankSelect ^= 1;
		vfe_write_gamma_table(0, ctrl->vfeGammaLutSel.ch0BankSelect,
			in->table);
		vfe_write_gamma_table(1, ctrl->vfeGammaLutSel.ch1BankSelect,
			in->table);
		break;

	case RGB_GAMMA_CH0_CH2_SELECTED:
		ctrl->vfeGammaLutSel.ch0BankSelect ^= 1;
		ctrl->vfeGammaLutSel.ch2BankSelect ^= 1;
		vfe_write_gamma_table(0, ctrl->vfeGammaLutSel.ch0BankSelect,
			in->table);
		vfe_write_gamma_table(2, ctrl->vfeGammaLutSel.ch2BankSelect,
			in->table);
		break;

	case RGB_GAMMA_CH1_CH2_SELECTED:
		ctrl->vfeGammaLutSel.ch1BankSelect ^= 1;
		ctrl->vfeGammaLutSel.ch2BankSelect ^= 1;
		vfe_write_gamma_table(1, ctrl->vfeGammaLutSel.ch1BankSelect,
			in->table);
		vfe_write_gamma_table(2, ctrl->vfeGammaLutSel.ch2BankSelect,
			in->table);
		break;

	case RGB_GAMMA_CH0_CH1_CH2_SELECTED:
		ctrl->vfeGammaLutSel.ch0BankSelect ^= 1;
		ctrl->vfeGammaLutSel.ch1BankSelect ^= 1;
		ctrl->vfeGammaLutSel.ch2BankSelect ^= 1;
		vfe_write_gamma_table(0, ctrl->vfeGammaLutSel.ch0BankSelect,
			in->table);
		vfe_write_gamma_table(1, ctrl->vfeGammaLutSel.ch1BankSelect,
			in->table);
		vfe_write_gamma_table(2, ctrl->vfeGammaLutSel.ch2BankSelect,
			in->table);
		break;

	default:
		pr_err("%s: invalid gamma channel %d\n", __func__,
			in->channelSelect);
		return -EINVAL;
	} /* switch */

	/* update the gammaLutSel register. */
	vfe_program_lut_bank_sel(&ctrl->vfeGammaLutSel);

	return rc;
}

int vfe_rgb_gamma_config(struct vfe_cmd_rgb_gamma_config *in)
{
	int rc = 0;

	ctrl->vfeModuleEnableLocal.rgbLUTEnable = in->enable;

	switch (in->channelSelect) {
	case RGB_GAMMA_CH0_SELECTED:
vfe_write_gamma_table(0, 0, in->table);
break;

	case RGB_GAMMA_CH1_SELECTED:
		vfe_write_gamma_table(1, 0, in->table);
		break;

	case RGB_GAMMA_CH2_SELECTED:
		vfe_write_gamma_table(2, 0, in->table);
		break;

	case RGB_GAMMA_CH0_CH1_SELECTED:
		vfe_write_gamma_table(0, 0, in->table);
		vfe_write_gamma_table(1, 0, in->table);
		break;

	case RGB_GAMMA_CH0_CH2_SELECTED:
		vfe_write_gamma_table(0, 0, in->table);
		vfe_write_gamma_table(2, 0, in->table);
		break;

	case RGB_GAMMA_CH1_CH2_SELECTED:
		vfe_write_gamma_table(1, 0, in->table);
		vfe_write_gamma_table(2, 0, in->table);
		break;

	case RGB_GAMMA_CH0_CH1_CH2_SELECTED:
		vfe_write_gamma_table(0, 0, in->table);
		vfe_write_gamma_table(1, 0, in->table);
		vfe_write_gamma_table(2, 0, in->table);
		break;

	default:
		pr_err("%s: invalid gamma channel %d\n", __func__,
			in->channelSelect);
		rc = -EINVAL;
		break;
	} /* switch */

	return rc;
}

void vfe_stats_af_ack(struct vfe_cmd_stats_af_ack *in)
{
	ctrl->afStatsControl.nextFrameAddrBuf = in->nextAFOutputBufferAddr;
	ctrl->afStatsControl.ackPending = FALSE;
}

void vfe_stats_wb_exp_ack(struct vfe_cmd_stats_wb_exp_ack *in)
{
	ctrl->awbStatsControl.nextFrameAddrBuf = in->nextWbExpOutputBufferAddr;
	ctrl->awbStatsControl.ackPending = FALSE;
}


void vfe_output_v_ack(struct vfe_cmd_output_ack *in)
{
	const uint32_t *psrc;
	uint32_t *pdest;
	uint8_t i;

	pdest = ctrl->encPath.nextFrameAddrBuf;

	CDBG("video_frame_ack: ack addr = 0x%x\n", in->ybufaddr[0]);

	psrc = in->ybufaddr;
	for (i = 0; i < ctrl->encPath.fragCount; i++)
		*pdest++ = *psrc++;

	psrc = in->chromabufaddr;
	for (i = 0; i < ctrl->encPath.fragCount; i++)
		*pdest++ = *psrc++;

	ctrl->encPath.ackPending = FALSE;
}

void vfe_output_p_ack(struct vfe_cmd_output_ack *in)
{
	const uint32_t *psrc;
	uint32_t *pdest;
	uint8_t i;

	if (ctrl->axiOutputMode == VFE_AXI_OUTPUT_MODE_Output1AndOutput2) {
		/* video mode, preview comes from output1 path */

	pdest = ctrl->viewPath.nextFrameAddrBuf;

	psrc = in->ybufaddr;
	for (i = 0; i < ctrl->viewPath.fragCount; i++)
		*pdest++ = *psrc++;

	psrc = in->chromabufaddr;
	for (i = 0; i < ctrl->viewPath.fragCount; i++)
		*pdest++ = *psrc++;

	ctrl->viewPath.ackPending = FALSE;

	} else { /* preview mode, preview comes from output2 path. */
		pdest = ctrl->encPath.nextFrameAddrBuf;

		psrc = in->ybufaddr;
		for (i = 0; i < ctrl->encPath.fragCount; i++)
			*pdest++ = *psrc++;

		psrc = in->chromabufaddr;
		for (i = 0; i < ctrl->encPath.fragCount; i++)
			*pdest++ = *psrc++;

		ctrl->encPath.ackPending = FALSE;

	}
}

void vfe_start(struct vfe_cmd_start *in)
{
	uint32_t  pmstatus = 0;
	boolean rawmode;
	uint32_t  demperiod = 0;
	uint32_t  demeven = 0;
	uint32_t  demodd = 0;

	/* derived from other commands.  (camif config, axi output config,
	 * etc)
	*/
	struct vfe_cfg hwcfg;
	struct vfe_upsample_cfg chromupcfg;

	CDBG("vfe_start operationMode = %d\n", in->operationMode);

	memset(&hwcfg, 0, sizeof(hwcfg));
	memset(&chromupcfg, 0, sizeof(chromupcfg));

	switch (in->pixel) {
	case VFE_BAYER_RGRGRG:
		demperiod = 1;
		demeven = 0xC9;
		demodd = 0xAC;
		break;

	case VFE_BAYER_GRGRGR:
		demperiod = 1;
		demeven = 0x9C;
		demodd = 0xCA;
		break;

	case VFE_BAYER_BGBGBG:
		demperiod = 1;
		demeven = 0xCA;
		demodd = 0x9C;
		break;

	case VFE_BAYER_GBGBGB:
		demperiod = 1;
		demeven = 0xAC;
		demodd = 0xC9;
		break;

	case VFE_YUV_YCbYCr:
		demperiod = 3;
		demeven = 0x9CAC;
		demodd = 0x9CAC;
		break;

	case VFE_YUV_YCrYCb:
		demperiod = 3;
		demeven = 0xAC9C;
		demodd = 0xAC9C;
		break;

	case VFE_YUV_CbYCrY:
		demperiod = 3;
		demeven = 0xC9CA;
		demodd = 0xC9CA;
		break;

	case VFE_YUV_CrYCbY:
		demperiod = 3;
		demeven = 0xCAC9;
		demodd = 0xCAC9;
		break;

	default:
		return;
	}

	vfe_config_demux(demperiod, demeven, demodd);

	vfe_program_lut_bank_sel(&ctrl->vfeGammaLutSel);

	/* save variables to local. */
	ctrl->vfeOperationMode = in->operationMode;
	if (ctrl->vfeOperationMode == VFE_START_OPERATION_MODE_SNAPSHOT) {

		update_axi_qos(MSM_AXI_QOS_SNAPSHOT);
		/* in snapshot mode, initialize snapshot count*/
		ctrl->vfeSnapShotCount = in->snapshotCount;

		/* save the requested count, this is temporarily done, to
		help with HJR / multishot. */
		ctrl->vfeRequestedSnapShotCount = ctrl->vfeSnapShotCount;

		CDBG("requested snapshot count = %d\n", ctrl->vfeSnapShotCount);

		/* Assumption is to have the same pattern and period for both
		paths, if both paths are used. */
		if (ctrl->viewPath.pathEnabled) {
			ctrl->viewPath.snapshotPendingCount = in->snapshotCount;

			ctrl->vfeFrameSkipPattern =
				ctrl->vfeFrameSkip.output1Pattern;
			ctrl->vfeFrameSkipPeriod =
				ctrl->vfeFrameSkip.output1Period;
		}

		if (ctrl->encPath.pathEnabled) {
			ctrl->encPath.snapshotPendingCount = in->snapshotCount;

			ctrl->vfeFrameSkipPattern =
				ctrl->vfeFrameSkip.output2Pattern;
			ctrl->vfeFrameSkipPeriod =
				ctrl->vfeFrameSkip.output2Period;
		}
	} else
		update_axi_qos(MSM_AXI_QOS_PREVIEW);

	/* enable color conversion for bayer sensor
	if stats enabled, need to do color conversion. */
	if (in->pixel <= VFE_BAYER_GBGBGB)
		ctrl->vfeStatsCmdLocal.colorConversionEnable = TRUE;

	vfe_program_stats_cmd(&ctrl->vfeStatsCmdLocal);

	if (in->pixel >= VFE_YUV_YCbYCr)
		ctrl->vfeModuleEnableLocal.chromaUpsampleEnable = TRUE;

	ctrl->vfeModuleEnableLocal.demuxEnable = TRUE;

	/* if any stats module is enabled, the main bit is enabled. */
	ctrl->vfeModuleEnableLocal.statsEnable =
		ctrl->vfeStatsCmdLocal.autoFocusEnable |
		ctrl->vfeStatsCmdLocal.axwEnable;

	vfe_reg_module_cfg(&ctrl->vfeModuleEnableLocal);

	/* in case of offline processing, do not need to config camif. Having
	 * bus output enabled in camif_config register might confuse the
	 * hardware?
	 */
	if (in->inputSource != VFE_START_INPUT_SOURCE_AXI) {
		vfe_reg_camif_config(&ctrl->vfeCamifConfigLocal);
	} else {
		/* offline processing, enable axi read */
		ctrl->vfeBusConfigLocal.stripeRdPathEn = TRUE;
		ctrl->vfeBusCmdLocal.stripeReload = TRUE;
		ctrl->vfeBusConfigLocal.rawPixelDataSize =
			ctrl->axiInputDataSize;
	}

	vfe_reg_bus_cfg(&ctrl->vfeBusConfigLocal);

	/* directly from start command */
	hwcfg.pixelPattern = in->pixel;
	hwcfg.inputSource = in->inputSource;
	writel(*(uint32_t *)&hwcfg, ctrl->vfebase + VFE_CFG);

	/* regardless module enabled or not, it does not hurt
	 * to program the cositing mode. */
	chromupcfg.chromaCositingForYCbCrInputs = in->yuvInputCositingMode;

	writel(*(uint32_t *)&chromupcfg,
		ctrl->vfebase + VFE_CHROMA_UPSAMPLE_CFG);

	/* MISR to monitor the axi read. */
	writel(0xd8, ctrl->vfebase + VFE_BUS_MISR_MAST_CFG_0);

	/* clear all pending interrupts. */
	writel(VFE_CLEAR_ALL_IRQS, ctrl->vfebase + VFE_IRQ_CLEAR);

	/*  define how composite interrupt work.  */
	ctrl->vfeImaskCompositePacked =
		vfe_irq_composite_pack(ctrl->vfeIrqCompositeMaskLocal);

	vfe_program_irq_composite_mask(ctrl->vfeImaskCompositePacked);

	/*  enable all necessary interrupts.      */
	ctrl->vfeImaskLocal.camifSofIrq  = TRUE;
	ctrl->vfeImaskLocal.regUpdateIrq = TRUE;
	ctrl->vfeImaskLocal.resetAckIrq  = TRUE;

	ctrl->vfeImaskPacked = vfe_irq_pack(ctrl->vfeImaskLocal);
	vfe_program_irq_mask(ctrl->vfeImaskPacked);

	/* enable bus performance monitor */
	vfe_8k_pm_start(&ctrl->vfeBusPmConfigLocal);

	/* trigger vfe reg update */
	ctrl->vfeStartAckPendingFlag = TRUE;

	/* write bus command to trigger reload of ping pong buffer. */
	ctrl->vfeBusCmdLocal.busPingpongReload = TRUE;

	if (ctrl->vfeModuleEnableLocal.statsEnable == TRUE) {
		ctrl->vfeBusCmdLocal.statsPingpongReload = TRUE;
		ctrl->vfeStatsPingPongReloadFlag = TRUE;
	}

	writel(VFE_REG_UPDATE_TRIGGER, ctrl->vfebase + VFE_REG_UPDATE_CMD);

	/* program later than the reg update. */
	vfe_reg_bus_cmd(&ctrl->vfeBusCmdLocal);

	if ((in->inputSource ==
			 VFE_START_INPUT_SOURCE_CAMIF) ||
	    (in->inputSource == VFE_START_INPUT_SOURCE_TESTGEN))
		writel(CAMIF_COMMAND_START, ctrl->vfebase + CAMIF_COMMAND);

	/* start test gen if it is enabled */
	if (ctrl->vfeTestGenStartFlag == TRUE) {
		ctrl->vfeTestGenStartFlag = FALSE;
		vfe_prog_hw_testgen_cmd(VFE_TEST_GEN_GO);
	}

	CDBG("ctrl->axiOutputMode = %d\n", ctrl->axiOutputMode);
	if (ctrl->axiOutputMode == VFE_AXI_OUTPUT_MODE_CAMIFToAXIViaOutput2) {
		/* raw dump mode */
		rawmode = TRUE;

		while (rawmode) {
			pmstatus =
				readl(ctrl->vfebase +
					VFE_BUS_ENC_CBCR_WR_PM_STATS_1);

			if ((pmstatus & VFE_PM_BUF_MAX_CNT_MASK) != 0)
				rawmode = FALSE;
		}

		vfe_proc_ops(VFE_MSG_ID_START_ACK, NULL);
		ctrl->vfeStartAckPendingFlag = FALSE;
	}

	ctrl->vstate = VFE_STATE_ACTIVE;
}

void vfe_la_update(struct vfe_cmd_la_config *in)
{
	int16_t *pTable;
	enum VFE_DMI_RAM_SEL dmiRamSel;
	int i;

	pTable = in->table;
	ctrl->vfeModuleEnableLocal.lumaAdaptationEnable = in->enable;

	/* toggle the bank to be used. */
	ctrl->vfeLaBankSel ^= 1;

	if (ctrl->vfeLaBankSel == 0)
		dmiRamSel = LUMA_ADAPT_LUT_RAM_BANK0;
	else
		dmiRamSel = LUMA_ADAPT_LUT_RAM_BANK1;

	/* configure the DMI_CFG to select right sram */
	vfe_program_dmi_cfg(dmiRamSel);

	for (i = 0; i < VFE_LA_TABLE_LENGTH; i++) {
		writel((uint32_t)(*pTable), ctrl->vfebase + VFE_DMI_DATA_LO);
		pTable++;
	}

	/* After DMI transfer, to make it safe, need to set
	 * the DMI_CFG to unselect any SRAM */
	writel(VFE_DMI_CFG_DEFAULT, ctrl->vfebase + VFE_DMI_CFG);
	writel(ctrl->vfeLaBankSel, ctrl->vfebase + VFE_LA_CFG);
}

void vfe_la_config(struct vfe_cmd_la_config *in)
{
	uint16_t i;
	int16_t  *pTable;
	enum VFE_DMI_RAM_SEL dmiRamSel;

	pTable = in->table;
	ctrl->vfeModuleEnableLocal.lumaAdaptationEnable = in->enable;

	if (ctrl->vfeLaBankSel == 0)
		dmiRamSel = LUMA_ADAPT_LUT_RAM_BANK0;
	else
		dmiRamSel = LUMA_ADAPT_LUT_RAM_BANK1;

	/* configure the DMI_CFG to select right sram */
	vfe_program_dmi_cfg(dmiRamSel);

	for (i = 0; i < VFE_LA_TABLE_LENGTH; i++) {
		writel((uint32_t)(*pTable), ctrl->vfebase + VFE_DMI_DATA_LO);
		pTable++;
	}

	/* After DMI transfer, to make it safe, need to set the
	 * DMI_CFG to unselect any SRAM */
	writel(VFE_DMI_CFG_DEFAULT, ctrl->vfebase + VFE_DMI_CFG);

	/* can only be bank 0 or bank 1 for now. */
	writel(ctrl->vfeLaBankSel, ctrl->vfebase + VFE_LA_CFG);
	CDBG("VFE Luma adaptation bank selection is 0x%x\n",
			 *(uint32_t *)&ctrl->vfeLaBankSel);
}

void vfe_test_gen_start(struct vfe_cmd_test_gen_start *in)
{
	struct VFE_TestGen_ConfigCmdType cmd;

	memset(&cmd, 0, sizeof(cmd));

	cmd.numFrame              = in->numFrame;
	cmd.pixelDataSelect       = in->pixelDataSelect;
	cmd.systematicDataSelect  = in->systematicDataSelect;
	cmd.pixelDataSize         = (uint32_t)in->pixelDataSize;
	cmd.hsyncEdge             = (uint32_t)in->hsyncEdge;
	cmd.vsyncEdge             = (uint32_t)in->vsyncEdge;
	cmd.imageWidth            = in->imageWidth;
	cmd.imageHeight           = in->imageHeight;
	cmd.sofOffset             = in->startOfFrameOffset;
	cmd.eofNOffset            = in->endOfFrameNOffset;
	cmd.solOffset             = in->startOfLineOffset;
	cmd.eolNOffset            = in->endOfLineNOffset;
	cmd.hBlankInterval        = in->hbi;
	cmd.vBlankInterval        = in->vbl;
	cmd.vBlankIntervalEnable  = in->vblEnable;
	cmd.sofDummy              = in->startOfFrameDummyLine;
	cmd.eofDummy              = in->endOfFrameDummyLine;
	cmd.unicolorBarSelect     = in->unicolorBarSelect;
	cmd.unicolorBarEnable     = in->unicolorBarEnable;
	cmd.splitEnable           = in->colorBarsSplitEnable;
	cmd.pixelPattern          = (uint32_t)in->colorBarsPixelPattern;
	cmd.rotatePeriod          = in->colorBarsRotatePeriod;
	cmd.randomSeed            = in->testGenRandomSeed;

	vfe_prog_hw(ctrl->vfebase + VFE_HW_TESTGEN_CFG,
		(uint32_t *) &cmd, sizeof(cmd));
}

void vfe_frame_skip_update(struct vfe_cmd_frame_skip_update *in)
{
	struct VFE_FRAME_SKIP_UpdateCmdType cmd;

	cmd.yPattern    = in->output1Pattern;
	cmd.cbcrPattern = in->output1Pattern;
	vfe_prog_hw(ctrl->vfebase + VFE_FRAMEDROP_VIEW_Y_PATTERN,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd.yPattern    = in->output2Pattern;
	cmd.cbcrPattern = in->output2Pattern;
	vfe_prog_hw(ctrl->vfebase + VFE_FRAMEDROP_ENC_Y_PATTERN,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_frame_skip_config(struct vfe_cmd_frame_skip_config *in)
{
	struct vfe_frame_skip_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeFrameSkip = *in;

	cmd.output2YPeriod     = in->output2Period;
	cmd.output2CbCrPeriod  = in->output2Period;
	cmd.output2YPattern    = in->output2Pattern;
	cmd.output2CbCrPattern = in->output2Pattern;
	cmd.output1YPeriod     = in->output1Period;
	cmd.output1CbCrPeriod  = in->output1Period;
	cmd.output1YPattern    = in->output1Pattern;
	cmd.output1CbCrPattern = in->output1Pattern;

	vfe_prog_hw(ctrl->vfebase + VFE_FRAMEDROP_ENC_Y_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_output_clamp_config(struct vfe_cmd_output_clamp_config *in)
{
	struct vfe_output_clamp_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	cmd.yChanMax  = in->maxCh0;
	cmd.cbChanMax = in->maxCh1;
	cmd.crChanMax = in->maxCh2;

	cmd.yChanMin  = in->minCh0;
	cmd.cbChanMin = in->minCh1;
	cmd.crChanMin = in->minCh2;

	vfe_prog_hw(ctrl->vfebase + VFE_CLAMP_MAX_CFG, (uint32_t *)&cmd,
		sizeof(cmd));
}

void vfe_camif_frame_update(struct vfe_cmds_camif_frame *in)
{
	struct vfe_camifframe_update cmd;

	memset(&cmd, 0, sizeof(cmd));

	cmd.pixelsPerLine = in->pixelsPerLine;
	cmd.linesPerFrame = in->linesPerFrame;

	vfe_prog_hw(ctrl->vfebase + CAMIF_FRAME_CONFIG, (uint32_t *)&cmd,
		sizeof(cmd));
}

void vfe_color_correction_config(struct vfe_cmd_color_correction_config *in)
{
	struct vfe_color_correction_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));
	ctrl->vfeModuleEnableLocal.colorCorrectionEnable = in->enable;

	cmd.c0 = in->C0;
	cmd.c1 = in->C1;
	cmd.c2 = in->C2;
	cmd.c3 = in->C3;
	cmd.c4 = in->C4;
	cmd.c5 = in->C5;
	cmd.c6 = in->C6;
	cmd.c7 = in->C7;
	cmd.c8 = in->C8;

	cmd.k0 = in->K0;
	cmd.k1 = in->K1;
	cmd.k2 = in->K2;

	cmd.coefQFactor = in->coefQFactor;

	vfe_prog_hw(ctrl->vfebase + VFE_COLOR_CORRECT_COEFF_0,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_demosaic_abf_update(struct vfe_cmd_demosaic_abf_update *in)
{
struct vfe_demosaic_cfg cmd;
	struct vfe_demosaic_abf_cfg cmdabf;
	uint32_t temp;

	memset(&cmd, 0, sizeof(cmd));
	temp = readl(ctrl->vfebase + VFE_DEMOSAIC_CFG);

	cmd = *((struct vfe_demosaic_cfg *)(&temp));
	cmd.abfEnable       = in->abfUpdate.enable;
	cmd.forceAbfOn      = in->abfUpdate.forceOn;
	cmd.abfShift        = in->abfUpdate.shift;
	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_CFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmdabf.lpThreshold  = in->abfUpdate.lpThreshold;
	cmdabf.ratio        = in->abfUpdate.ratio;
	cmdabf.minValue     = in->abfUpdate.min;
	cmdabf.maxValue     = in->abfUpdate.max;
	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_ABF_CFG_0,
		(uint32_t *)&cmdabf, sizeof(cmdabf));
}

void vfe_demosaic_bpc_update(struct vfe_cmd_demosaic_bpc_update *in)
{
	struct vfe_demosaic_cfg cmd;
	struct vfe_demosaic_bpc_cfg cmdbpc;
	uint32_t temp;

	memset(&cmd, 0, sizeof(cmd));

	temp = readl(ctrl->vfebase + VFE_DEMOSAIC_CFG);

	cmd = *((struct vfe_demosaic_cfg *)(&temp));
	cmd.badPixelCorrEnable = in->bpcUpdate.enable;
	cmd.fminThreshold      = in->bpcUpdate.fminThreshold;
	cmd.fmaxThreshold      = in->bpcUpdate.fmaxThreshold;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_CFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmdbpc.blueDiffThreshold  = in->bpcUpdate.blueDiffThreshold;
	cmdbpc.redDiffThreshold   = in->bpcUpdate.redDiffThreshold;
	cmdbpc.greenDiffThreshold = in->bpcUpdate.greenDiffThreshold;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_BPC_CFG_0,
		(uint32_t *)&cmdbpc, sizeof(cmdbpc));
}

void vfe_demosaic_config(struct vfe_cmd_demosaic_config *in)
{
	struct vfe_demosaic_cfg cmd;
	struct vfe_demosaic_bpc_cfg cmd_bpc;
	struct vfe_demosaic_abf_cfg cmd_abf;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd_bpc, 0, sizeof(cmd_bpc));
	memset(&cmd_abf, 0, sizeof(cmd_abf));

	ctrl->vfeModuleEnableLocal.demosaicEnable = in->enable;

	cmd.abfEnable          = in->abfConfig.enable;
	cmd.badPixelCorrEnable = in->bpcConfig.enable;
	cmd.forceAbfOn         = in->abfConfig.forceOn;
	cmd.abfShift           = in->abfConfig.shift;
	cmd.fminThreshold      = in->bpcConfig.fminThreshold;
	cmd.fmaxThreshold      = in->bpcConfig.fmaxThreshold;
	cmd.slopeShift         = in->slopeShift;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_CFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd_abf.lpThreshold = in->abfConfig.lpThreshold;
	cmd_abf.ratio       = in->abfConfig.ratio;
	cmd_abf.minValue    = in->abfConfig.min;
	cmd_abf.maxValue    = in->abfConfig.max;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_ABF_CFG_0,
		(uint32_t *)&cmd_abf, sizeof(cmd_abf));

	cmd_bpc.blueDiffThreshold   = in->bpcConfig.blueDiffThreshold;
	cmd_bpc.redDiffThreshold    = in->bpcConfig.redDiffThreshold;
	cmd_bpc.greenDiffThreshold  = in->bpcConfig.greenDiffThreshold;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMOSAIC_BPC_CFG_0,
		(uint32_t *)&cmd_bpc, sizeof(cmd_bpc));
}

void vfe_demux_channel_gain_update(struct vfe_cmd_demux_channel_gain_config *in)
{
	struct vfe_demux_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));

	cmd.ch0EvenGain  = in->ch0EvenGain;
	cmd.ch0OddGain   = in->ch0OddGain;
	cmd.ch1Gain      = in->ch1Gain;
	cmd.ch2Gain      = in->ch2Gain;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMUX_GAIN_0,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_demux_channel_gain_config(struct vfe_cmd_demux_channel_gain_config *in)
{
	struct vfe_demux_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));

	cmd.ch0EvenGain = in->ch0EvenGain;
	cmd.ch0OddGain  = in->ch0OddGain;
	cmd.ch1Gain     = in->ch1Gain;
	cmd.ch2Gain     = in->ch2Gain;

	vfe_prog_hw(ctrl->vfebase + VFE_DEMUX_GAIN_0,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_black_level_update(struct vfe_cmd_black_level_config *in)
{
	struct vfe_blacklevel_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));
	ctrl->vfeModuleEnableLocal.blackLevelCorrectionEnable = in->enable;

	cmd.evenEvenAdjustment = in->evenEvenAdjustment;
	cmd.evenOddAdjustment  = in->evenOddAdjustment;
	cmd.oddEvenAdjustment  = in->oddEvenAdjustment;
	cmd.oddOddAdjustment   = in->oddOddAdjustment;

	vfe_prog_hw(ctrl->vfebase + VFE_BLACK_EVEN_EVEN_VALUE,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_black_level_config(struct vfe_cmd_black_level_config *in)
{
	struct vfe_blacklevel_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.blackLevelCorrectionEnable = in->enable;

	cmd.evenEvenAdjustment = in->evenEvenAdjustment;
	cmd.evenOddAdjustment  = in->evenOddAdjustment;
	cmd.oddEvenAdjustment  = in->oddEvenAdjustment;
	cmd.oddOddAdjustment   = in->oddOddAdjustment;

	vfe_prog_hw(ctrl->vfebase + VFE_BLACK_EVEN_EVEN_VALUE,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_asf_update(struct vfe_cmd_asf_update *in)
{
	struct vfe_asf_update cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.asfEnable = in->enable;

	cmd.smoothEnable     = in->smoothFilterEnabled;
	cmd.sharpMode        = in->sharpMode;
	cmd.smoothCoeff0     = in->smoothCoefCenter;
	cmd.smoothCoeff1     = in->smoothCoefSurr;
	cmd.cropEnable       = in->cropEnable;
	cmd.sharpThresholdE1 = in->sharpThreshE1;
	cmd.sharpDegreeK1    = in->sharpK1;
	cmd.sharpDegreeK2    = in->sharpK2;
	cmd.normalizeFactor  = in->normalizeFactor;
	cmd.sharpThresholdE2 = in->sharpThreshE2;
	cmd.sharpThresholdE3 = in->sharpThreshE3;
	cmd.sharpThresholdE4 = in->sharpThreshE4;
	cmd.sharpThresholdE5 = in->sharpThreshE5;
	cmd.F1Coeff0         = in->filter1Coefficients[0];
	cmd.F1Coeff1         = in->filter1Coefficients[1];
	cmd.F1Coeff2         = in->filter1Coefficients[2];
	cmd.F1Coeff3         = in->filter1Coefficients[3];
	cmd.F1Coeff4         = in->filter1Coefficients[4];
	cmd.F1Coeff5         = in->filter1Coefficients[5];
	cmd.F1Coeff6         = in->filter1Coefficients[6];
	cmd.F1Coeff7         = in->filter1Coefficients[7];
	cmd.F1Coeff8         = in->filter1Coefficients[8];
	cmd.F2Coeff0         = in->filter2Coefficients[0];
	cmd.F2Coeff1         = in->filter2Coefficients[1];
	cmd.F2Coeff2         = in->filter2Coefficients[2];
	cmd.F2Coeff3         = in->filter2Coefficients[3];
	cmd.F2Coeff4         = in->filter2Coefficients[4];
	cmd.F2Coeff5         = in->filter2Coefficients[5];
	cmd.F2Coeff6         = in->filter2Coefficients[6];
	cmd.F2Coeff7         = in->filter2Coefficients[7];
	cmd.F2Coeff8         = in->filter2Coefficients[8];

	vfe_prog_hw(ctrl->vfebase + VFE_ASF_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_asf_config(struct vfe_cmd_asf_config *in)
{
	struct vfe_asf_update     cmd;
	struct vfe_asfcrop_cfg cmd2;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd2, 0, sizeof(cmd2));

	ctrl->vfeModuleEnableLocal.asfEnable = in->enable;

	cmd.smoothEnable       = in->smoothFilterEnabled;
	cmd.sharpMode          = in->sharpMode;
	cmd.smoothCoeff0       = in->smoothCoefCenter;
	cmd.smoothCoeff1       = in->smoothCoefSurr;
	cmd.cropEnable         = in->cropEnable;
	cmd.sharpThresholdE1   = in->sharpThreshE1;
	cmd.sharpDegreeK1      = in->sharpK1;
	cmd.sharpDegreeK2      = in->sharpK2;
	cmd.normalizeFactor    = in->normalizeFactor;
	cmd.sharpThresholdE2   = in->sharpThreshE2;
	cmd.sharpThresholdE3   = in->sharpThreshE3;
	cmd.sharpThresholdE4   = in->sharpThreshE4;
	cmd.sharpThresholdE5   = in->sharpThreshE5;
	cmd.F1Coeff0           = in->filter1Coefficients[0];
	cmd.F1Coeff1           = in->filter1Coefficients[1];
	cmd.F1Coeff2           = in->filter1Coefficients[2];
	cmd.F1Coeff3           = in->filter1Coefficients[3];
	cmd.F1Coeff4           = in->filter1Coefficients[4];
	cmd.F1Coeff5           = in->filter1Coefficients[5];
	cmd.F1Coeff6           = in->filter1Coefficients[6];
	cmd.F1Coeff7           = in->filter1Coefficients[7];
	cmd.F1Coeff8           = in->filter1Coefficients[8];
	cmd.F2Coeff0           = in->filter2Coefficients[0];
	cmd.F2Coeff1           = in->filter2Coefficients[1];
	cmd.F2Coeff2           = in->filter2Coefficients[2];
	cmd.F2Coeff3           = in->filter2Coefficients[3];
	cmd.F2Coeff4           = in->filter2Coefficients[4];
	cmd.F2Coeff5           = in->filter2Coefficients[5];
	cmd.F2Coeff6           = in->filter2Coefficients[6];
	cmd.F2Coeff7           = in->filter2Coefficients[7];
	cmd.F2Coeff8           = in->filter2Coefficients[8];

	vfe_prog_hw(ctrl->vfebase + VFE_ASF_CFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd2.firstLine  = in->cropFirstLine;
	cmd2.lastLine   = in->cropLastLine;
	cmd2.firstPixel = in->cropFirstPixel;
	cmd2.lastPixel  = in->cropLastPixel;

	vfe_prog_hw(ctrl->vfebase + VFE_ASF_CROP_WIDTH_CFG,
		(uint32_t *)&cmd2, sizeof(cmd2));
}

void vfe_white_balance_config(struct vfe_cmd_white_balance_config *in)
{
	struct vfe_wb_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.whiteBalanceEnable = in->enable;

	cmd.ch0Gain = in->ch0Gain;
	cmd.ch1Gain = in->ch1Gain;
	cmd.ch2Gain = in->ch2Gain;

	vfe_prog_hw(ctrl->vfebase + VFE_WB_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_chroma_sup_config(struct vfe_cmd_chroma_suppression_config *in)
{
	struct vfe_chroma_suppress_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.chromaSuppressionEnable = in->enable;

	cmd.m1  = in->m1;
	cmd.m3  = in->m3;
	cmd.n1  = in->n1;
	cmd.n3  = in->n3;
	cmd.mm1 = in->mm1;
	cmd.nn1 = in->nn1;

	vfe_prog_hw(ctrl->vfebase + VFE_CHROMA_SUPPRESS_CFG_0,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_roll_off_config(struct vfe_cmd_roll_off_config *in)
{
	struct vfe_rolloff_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.lensRollOffEnable = in->enable;

	cmd.gridWidth   = in->gridWidth;
	cmd.gridHeight  = in->gridHeight;
	cmd.yDelta      = in->yDelta;
	cmd.gridX       = in->gridXIndex;
	cmd.gridY       = in->gridYIndex;
	cmd.pixelX      = in->gridPixelXIndex;
	cmd.pixelY      = in->gridPixelYIndex;
	cmd.yDeltaAccum = in->yDeltaAccum;

	vfe_prog_hw(ctrl->vfebase + VFE_ROLLOFF_CFG_0,
		(uint32_t *)&cmd, sizeof(cmd));

	vfe_write_lens_roll_off_table(in);
}

void vfe_chroma_subsample_config(struct vfe_cmd_chroma_subsample_config *in)
{
	struct vfe_chromasubsample_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.chromaSubsampleEnable = in->enable;

	cmd.hCositedPhase       = in->hCositedPhase;
	cmd.vCositedPhase       = in->vCositedPhase;
	cmd.hCosited            = in->hCosited;
	cmd.vCosited            = in->vCosited;
	cmd.hsubSampleEnable    = in->hsubSampleEnable;
	cmd.vsubSampleEnable    = in->vsubSampleEnable;
	cmd.cropEnable          = in->cropEnable;
	cmd.cropWidthLastPixel  = in->cropWidthLastPixel;
	cmd.cropWidthFirstPixel = in->cropWidthFirstPixel;
	cmd.cropHeightLastLine  = in->cropHeightLastLine;
	cmd.cropHeightFirstLine = in->cropHeightFirstLine;

	vfe_prog_hw(ctrl->vfebase + VFE_CHROMA_SUBSAMPLE_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_chroma_enhan_config(struct vfe_cmd_chroma_enhan_config *in)
{
	struct vfe_chroma_enhance_cfg cmd;
	struct vfe_color_convert_cfg cmd2;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd2, 0, sizeof(cmd2));

	ctrl->vfeModuleEnableLocal.chromaEnhanEnable = in->enable;

	cmd.ap             = in->ap;
	cmd.am             = in->am;
	cmd.bp             = in->bp;
	cmd.bm             = in->bm;
	cmd.cp             = in->cp;
	cmd.cm             = in->cm;
	cmd.dp             = in->dp;
	cmd.dm             = in->dm;
	cmd.kcb            = in->kcb;
	cmd.kcr            = in->kcr;

	cmd2.v0            = in->RGBtoYConversionV0;
	cmd2.v1            = in->RGBtoYConversionV1;
	cmd2.v2            = in->RGBtoYConversionV2;
	cmd2.ConvertOffset = in->RGBtoYConversionOffset;

	vfe_prog_hw(ctrl->vfebase + VFE_CHROMA_ENHAN_A,
		(uint32_t *)&cmd, sizeof(cmd));

	vfe_prog_hw(ctrl->vfebase + VFE_COLOR_CONVERT_COEFF_0,
		(uint32_t *)&cmd2, sizeof(cmd2));
}

void vfe_scaler2cbcr_config(struct vfe_cmd_scaler2_config *in)
{
	struct vfe_scaler2_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.scaler2CbcrEnable = in->enable;

	cmd.hEnable              = in->hconfig.enable;
	cmd.vEnable              = in->vconfig.enable;
	cmd.inWidth              = in->hconfig.inputSize;
	cmd.outWidth             = in->hconfig.outputSize;
	cmd.horizPhaseMult       = in->hconfig.phaseMultiplicationFactor;
	cmd.horizInterResolution = in->hconfig.interpolationResolution;
	cmd.inHeight             = in->vconfig.inputSize;
	cmd.outHeight            = in->vconfig.outputSize;
	cmd.vertPhaseMult        = in->vconfig.phaseMultiplicationFactor;
	cmd.vertInterResolution  = in->vconfig.interpolationResolution;

	vfe_prog_hw(ctrl->vfebase + VFE_SCALE_CBCR_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_scaler2y_config(struct vfe_cmd_scaler2_config *in)
{
	struct vfe_scaler2_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.scaler2YEnable = in->enable;

	cmd.hEnable               = in->hconfig.enable;
	cmd.vEnable               = in->vconfig.enable;
	cmd.inWidth               = in->hconfig.inputSize;
	cmd.outWidth              = in->hconfig.outputSize;
	cmd.horizPhaseMult        = in->hconfig.phaseMultiplicationFactor;
	cmd.horizInterResolution  = in->hconfig.interpolationResolution;
	cmd.inHeight              = in->vconfig.inputSize;
	cmd.outHeight             = in->vconfig.outputSize;
	cmd.vertPhaseMult         = in->vconfig.phaseMultiplicationFactor;
	cmd.vertInterResolution   = in->vconfig.interpolationResolution;

	vfe_prog_hw(ctrl->vfebase + VFE_SCALE_Y_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_main_scaler_config(struct vfe_cmd_main_scaler_config *in)
{
	struct vfe_main_scaler_cfg cmd;

	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.mainScalerEnable = in->enable;

	cmd.hEnable              = in->hconfig.enable;
	cmd.vEnable              = in->vconfig.enable;
	cmd.inWidth              = in->hconfig.inputSize;
	cmd.outWidth             = in->hconfig.outputSize;
	cmd.horizPhaseMult       = in->hconfig.phaseMultiplicationFactor;
	cmd.horizInterResolution = in->hconfig.interpolationResolution;
	cmd.horizMNInit          = in->MNInitH.MNCounterInit;
	cmd.horizPhaseInit       = in->MNInitH.phaseInit;
	cmd.inHeight             = in->vconfig.inputSize;
	cmd.outHeight            = in->vconfig.outputSize;
	cmd.vertPhaseMult        = in->vconfig.phaseMultiplicationFactor;
	cmd.vertInterResolution  = in->vconfig.interpolationResolution;
	cmd.vertMNInit           = in->MNInitV.MNCounterInit;
	cmd.vertPhaseInit        = in->MNInitV.phaseInit;

	vfe_prog_hw(ctrl->vfebase + VFE_SCALE_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_stats_wb_exp_stop(void)
{
	ctrl->vfeStatsCmdLocal.axwEnable = FALSE;
	ctrl->vfeImaskLocal.awbPingpongIrq = FALSE;
}

void vfe_stats_update_wb_exp(struct vfe_cmd_stats_wb_exp_update *in)
{
	struct vfe_statsawb_update   cmd;
	struct vfe_statsawbae_update cmd2;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd2, 0, sizeof(cmd2));

	cmd.m1  = in->awbMCFG[0];
	cmd.m2  = in->awbMCFG[1];
	cmd.m3  = in->awbMCFG[2];
	cmd.m4  = in->awbMCFG[3];
	cmd.c1  = in->awbCCFG[0];
	cmd.c2  = in->awbCCFG[1];
	cmd.c3  = in->awbCCFG[2];
	cmd.c4  = in->awbCCFG[3];
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AWB_MCFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd2.aeRegionCfg    = in->wbExpRegions;
	cmd2.aeSubregionCfg = in->wbExpSubRegion;
	cmd2.awbYMin        = in->awbYMin;
	cmd2.awbYMax        = in->awbYMax;
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AWBAE_CFG,
		(uint32_t *)&cmd2, sizeof(cmd2));
}

void vfe_stats_update_af(struct vfe_cmd_stats_af_update *in)
{
	struct vfe_statsaf_update cmd;
	memset(&cmd, 0, sizeof(cmd));

	cmd.windowVOffset = in->windowVOffset;
	cmd.windowHOffset = in->windowHOffset;
	cmd.windowMode    = in->windowMode;
	cmd.windowHeight  = in->windowHeight;
	cmd.windowWidth   = in->windowWidth;

	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AF_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_stats_start_wb_exp(struct vfe_cmd_stats_wb_exp_start *in)
{
	struct vfe_statsawb_update   cmd;
	struct vfe_statsawbae_update cmd2;
	struct vfe_statsaxw_hdr_cfg  cmd3;

	ctrl->vfeStatsCmdLocal.axwEnable   =  in->enable;
	ctrl->vfeImaskLocal.awbPingpongIrq = TRUE;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd2, 0, sizeof(cmd2));
	memset(&cmd3, 0, sizeof(cmd3));

	cmd.m1  = in->awbMCFG[0];
	cmd.m2  = in->awbMCFG[1];
	cmd.m3  = in->awbMCFG[2];
	cmd.m4  = in->awbMCFG[3];
	cmd.c1  = in->awbCCFG[0];
	cmd.c2  = in->awbCCFG[1];
	cmd.c3  = in->awbCCFG[2];
	cmd.c4  = in->awbCCFG[3];
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AWB_MCFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd2.aeRegionCfg     = in->wbExpRegions;
	cmd2.aeSubregionCfg  = in->wbExpSubRegion;
	cmd2.awbYMin         = in->awbYMin;
	cmd2.awbYMax         = in->awbYMax;
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AWBAE_CFG,
		(uint32_t *)&cmd2, sizeof(cmd2));

	cmd3.axwHeader       = in->axwHeader;
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AXW_HEADER,
		(uint32_t *)&cmd3, sizeof(cmd3));
}

void vfe_stats_start_af(struct vfe_cmd_stats_af_start *in)
{
	struct vfe_statsaf_update cmd;
	struct vfe_statsaf_cfg    cmd2;

	memset(&cmd, 0, sizeof(cmd));
	memset(&cmd2, 0, sizeof(cmd2));

	ctrl->vfeStatsCmdLocal.autoFocusEnable = in->enable;
	ctrl->vfeImaskLocal.afPingpongIrq = TRUE;

	cmd.windowVOffset = in->windowVOffset;
	cmd.windowHOffset = in->windowHOffset;
	cmd.windowMode    = in->windowMode;
	cmd.windowHeight  = in->windowHeight;
	cmd.windowWidth   = in->windowWidth;

	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AF_CFG,
		(uint32_t *)&cmd, sizeof(cmd));

	cmd2.a00       = in->highPassCoef[0];
	cmd2.a04       = in->highPassCoef[1];
	cmd2.a20       = in->highPassCoef[2];
	cmd2.a21       = in->highPassCoef[3];
	cmd2.a22       = in->highPassCoef[4];
	cmd2.a23       = in->highPassCoef[5];
	cmd2.a24       = in->highPassCoef[6];
	cmd2.fvMax     = in->metricMax;
	cmd2.fvMetric  = in->metricSelection;
	cmd2.afHeader  = in->bufferHeader;
	cmd2.entry00   = in->gridForMultiWindows[0];
	cmd2.entry01   = in->gridForMultiWindows[1];
	cmd2.entry02   = in->gridForMultiWindows[2];
	cmd2.entry03   = in->gridForMultiWindows[3];
	cmd2.entry10   = in->gridForMultiWindows[4];
	cmd2.entry11   = in->gridForMultiWindows[5];
	cmd2.entry12   = in->gridForMultiWindows[6];
	cmd2.entry13   = in->gridForMultiWindows[7];
	cmd2.entry20   = in->gridForMultiWindows[8];
	cmd2.entry21   = in->gridForMultiWindows[9];
	cmd2.entry22   = in->gridForMultiWindows[10];
	cmd2.entry23   = in->gridForMultiWindows[11];
	cmd2.entry30   = in->gridForMultiWindows[12];
	cmd2.entry31   = in->gridForMultiWindows[13];
	cmd2.entry32   = in->gridForMultiWindows[14];
	cmd2.entry33   = in->gridForMultiWindows[15];

	vfe_prog_hw(ctrl->vfebase + VFE_STATS_AF_GRID_0,
		(uint32_t *)&cmd2, sizeof(cmd2));
}

void vfe_stats_setting(struct vfe_cmd_stats_setting *in)
{
	struct vfe_statsframe cmd1;
	struct vfe_busstats_wrprio cmd2;

	memset(&cmd1, 0, sizeof(cmd1));
	memset(&cmd2, 0, sizeof(cmd2));

	ctrl->afStatsControl.addressBuffer[0] = in->afBuffer[0];
	ctrl->afStatsControl.addressBuffer[1] = in->afBuffer[1];
	ctrl->afStatsControl.nextFrameAddrBuf = in->afBuffer[2];

	ctrl->awbStatsControl.addressBuffer[0] = in->awbBuffer[0];
	ctrl->awbStatsControl.addressBuffer[1] = in->awbBuffer[1];
	ctrl->awbStatsControl.nextFrameAddrBuf = in->awbBuffer[2];

	cmd1.lastPixel = in->frameHDimension;
	cmd1.lastLine  = in->frameVDimension;
	vfe_prog_hw(ctrl->vfebase + VFE_STATS_FRAME_SIZE,
		(uint32_t *)&cmd1, sizeof(cmd1));

	cmd2.afBusPriority    = in->afBusPriority;
	cmd2.awbBusPriority   = in->awbBusPriority;
	cmd2.histBusPriority  = in->histBusPriority;
	cmd2.afBusPriorityEn  = in->afBusPrioritySelection;
	cmd2.awbBusPriorityEn = in->awbBusPrioritySelection;
	cmd2.histBusPriorityEn = in->histBusPrioritySelection;

	vfe_prog_hw(ctrl->vfebase + VFE_BUS_STATS_WR_PRIORITY,
		(uint32_t *)&cmd2, sizeof(cmd2));

	/* Program the bus ping pong address for statistics modules. */
	writel(in->afBuffer[0], ctrl->vfebase + VFE_BUS_STATS_AF_WR_PING_ADDR);
	writel(in->afBuffer[1], ctrl->vfebase + VFE_BUS_STATS_AF_WR_PONG_ADDR);
	writel(in->awbBuffer[0],
		ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PING_ADDR);
	writel(in->awbBuffer[1],
		ctrl->vfebase + VFE_BUS_STATS_AWB_WR_PONG_ADDR);
	writel(in->histBuffer[0],
		ctrl->vfebase + VFE_BUS_STATS_HIST_WR_PING_ADDR);
	writel(in->histBuffer[1],
		ctrl->vfebase + VFE_BUS_STATS_HIST_WR_PONG_ADDR);
}

void vfe_axi_input_config(struct vfe_cmd_axi_input_config *in)
{
	struct VFE_AxiInputCmdType cmd;
	uint32_t xSizeWord, axiRdUnpackPattern;
	uint8_t  axiInputPpw;
	uint32_t busPingpongRdIrqEnable;

	ctrl->vfeImaskLocal.rdPingpongIrq = TRUE;

	switch (in->pixelSize) {
	case VFE_RAW_PIXEL_DATA_SIZE_10BIT:
		ctrl->axiInputDataSize = VFE_RAW_PIXEL_DATA_SIZE_10BIT;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_12BIT:
		ctrl->axiInputDataSize = VFE_RAW_PIXEL_DATA_SIZE_12BIT;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_8BIT:
	default:
		ctrl->axiInputDataSize = VFE_RAW_PIXEL_DATA_SIZE_8BIT;
		break;
	}

	memset(&cmd, 0, sizeof(cmd));

	switch (in->pixelSize) {
	case VFE_RAW_PIXEL_DATA_SIZE_10BIT:
		axiInputPpw = 6;
		axiRdUnpackPattern = 0xD43210;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_12BIT:
		axiInputPpw = 5;
		axiRdUnpackPattern = 0xC3210;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_8BIT:
	default:
		axiInputPpw = 8;
		axiRdUnpackPattern = 0xF6543210;
		break;
	}

	xSizeWord =
		((((in->xOffset % axiInputPpw) + in->xSize) +
			(axiInputPpw-1)) / axiInputPpw) - 1;

	cmd.stripeStartAddr0  = in->fragAddr[0];
	cmd.stripeStartAddr1  = in->fragAddr[1];
	cmd.stripeStartAddr2  = in->fragAddr[2];
	cmd.stripeStartAddr3  = in->fragAddr[3];
	cmd.ySize             = in->ySize;
	cmd.yOffsetDelta      = 0;
	cmd.xSizeWord         = xSizeWord;
	cmd.burstLength       = 1;
	cmd.NumOfRows         = in->numOfRows;
	cmd.RowIncrement = (in->rowIncrement + (axiInputPpw - 1)) / axiInputPpw;
	cmd.mainUnpackHeight  = in->ySize;
	cmd.mainUnpackWidth   = in->xSize - 1;
	cmd.mainUnpackHbiSel  = (uint32_t)in->unpackHbi;
	cmd.mainUnpackPhase   = in->unpackPhase;
	cmd.unpackPattern     = axiRdUnpackPattern;
	cmd.padLeft           = in->padRepeatCountLeft;
	cmd.padRight          = in->padRepeatCountRight;
	cmd.padTop            = in->padRepeatCountTop;
	cmd.padBottom         = in->padRepeatCountBottom;
	cmd.leftUnpackPattern0   = in->padLeftComponentSelectCycle0;
	cmd.leftUnpackPattern1   = in->padLeftComponentSelectCycle1;
	cmd.leftUnpackPattern2   = in->padLeftComponentSelectCycle2;
	cmd.leftUnpackPattern3   = in->padLeftComponentSelectCycle3;
	cmd.leftUnpackStop0      = in->padLeftStopCycle0;
	cmd.leftUnpackStop1      = in->padLeftStopCycle1;
	cmd.leftUnpackStop2      = in->padLeftStopCycle2;
	cmd.leftUnpackStop3      = in->padLeftStopCycle3;
	cmd.rightUnpackPattern0  = in->padRightComponentSelectCycle0;
	cmd.rightUnpackPattern1  = in->padRightComponentSelectCycle1;
	cmd.rightUnpackPattern2  = in->padRightComponentSelectCycle2;
	cmd.rightUnpackPattern3  = in->padRightComponentSelectCycle3;
	cmd.rightUnpackStop0     = in->padRightStopCycle0;
	cmd.rightUnpackStop1     = in->padRightStopCycle1;
	cmd.rightUnpackStop2     = in->padRightStopCycle2;
	cmd.rightUnpackStop3     = in->padRightStopCycle3;
	cmd.topUnapckPattern     = in->padTopLineCount;
	cmd.bottomUnapckPattern  = in->padBottomLineCount;

	/*  program vfe_bus_cfg */
	vfe_prog_hw(ctrl->vfebase + VFE_BUS_STRIPE_RD_ADDR_0,
		(uint32_t *)&cmd, sizeof(cmd));

	/* hacking code, put it to default value */
	busPingpongRdIrqEnable = 0xf;

	writel(busPingpongRdIrqEnable, ctrl->vfebase + VFE_BUS_PINGPONG_IRQ_EN);
}

void vfe_axi_output_config(struct vfe_cmd_axi_output_config *in)
{
	/* local variable  */
	uint32_t *pcircle;
	uint32_t *pdest;
	uint32_t *psrc;
	uint8_t  i;
	uint8_t  fcnt;
	uint16_t axioutpw = 8;

	/* parameters check, condition and usage mode check */
	ctrl->encPath.fragCount = in->output2.fragmentCount;
	if (ctrl->encPath.fragCount > 1)
		ctrl->encPath.multiFrag = TRUE;

	ctrl->viewPath.fragCount = in->output1.fragmentCount;
	if (ctrl->viewPath.fragCount > 1)
		ctrl->viewPath.multiFrag = TRUE;

	/* VFE_BUS_CFG.  raw data size */
	ctrl->vfeBusConfigLocal.rawPixelDataSize = in->outputDataSize;

	switch (in->outputDataSize) {
	case VFE_RAW_PIXEL_DATA_SIZE_8BIT:
		axioutpw = 8;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_10BIT:
		axioutpw = 6;
		break;

	case VFE_RAW_PIXEL_DATA_SIZE_12BIT:
		axioutpw = 5;
		break;
	}

	ctrl->axiOutputMode = in->outputMode;

	CDBG("axiOutputMode = %d\n", ctrl->axiOutputMode);

	switch (ctrl->axiOutputMode) {
	case VFE_AXI_OUTPUT_MODE_Output1: {
		ctrl->vfeCamifConfigLocal.camif2BusEnable   = FALSE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = TRUE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect  =
			VFE_RAW_OUTPUT_DISABLED;

		ctrl->encPath.pathEnabled                   = FALSE;
		ctrl->vfeImaskLocal.encIrq                  = FALSE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.encYWrPathEn          = FALSE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn       = FALSE;
		ctrl->viewPath.pathEnabled                    = TRUE;
		ctrl->vfeImaskLocal.viewIrq                   = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.viewYWrPathEn    = TRUE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn = TRUE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq   = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_Output1 */
		break;

	case VFE_AXI_OUTPUT_MODE_Output2: {
		ctrl->vfeCamifConfigLocal.camif2BusEnable   = FALSE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = TRUE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect  =
			VFE_RAW_OUTPUT_DISABLED;

		ctrl->encPath.pathEnabled                   = TRUE;
		ctrl->vfeImaskLocal.encIrq                  = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.encYWrPathEn        = TRUE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn     = TRUE;

		ctrl->viewPath.pathEnabled                   = FALSE;
		ctrl->vfeImaskLocal.viewIrq                  = FALSE;
		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.viewYWrPathEn        = FALSE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn     = FALSE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq   = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_Output2 */
			break;

	case VFE_AXI_OUTPUT_MODE_Output1AndOutput2: {
		ctrl->vfeCamifConfigLocal.camif2BusEnable    = FALSE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = TRUE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect   =
			VFE_RAW_OUTPUT_DISABLED;

		ctrl->encPath.pathEnabled                    = TRUE;
		ctrl->vfeImaskLocal.encIrq                   = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.encYWrPathEn         = TRUE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn      = TRUE;
		ctrl->viewPath.pathEnabled                   = TRUE;
		ctrl->vfeImaskLocal.viewIrq                  = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.viewYWrPathEn        = TRUE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn     = TRUE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq   = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_Output1AndOutput2 */
		break;

	case VFE_AXI_OUTPUT_MODE_CAMIFToAXIViaOutput2: {
		/* For raw snapshot, we need both ping and pong buffer
		 * initialized to the same address. Otherwise, if we
		 * leave the pong buffer to NULL, there will be axi_error.
		 * Note that ideally we should deal with this at upper layer,
		 * which is in msm_vfe8x.c */
		if (!in->output2.outputCbcr.outFragments[1][0]) {
			in->output2.outputCbcr.outFragments[1][0] =
				in->output2.outputCbcr.outFragments[0][0];
		}

		ctrl->vfeCamifConfigLocal.camif2BusEnable   = TRUE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = FALSE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect  =
			VFE_RAW_OUTPUT_ENC_CBCR_PATH;

		ctrl->encPath.pathEnabled                   = TRUE;
		ctrl->vfeImaskLocal.encIrq                  = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask =
			VFE_COMP_IRQ_CBCR_ONLY;

		ctrl->vfeBusConfigLocal.encYWrPathEn        = FALSE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn     = TRUE;

		ctrl->viewPath.pathEnabled                   = FALSE;
		ctrl->vfeImaskLocal.viewIrq                  = FALSE;
		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.viewYWrPathEn        = FALSE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn     = FALSE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq   = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_CAMIFToAXIViaOutput2 */
		break;

	case VFE_AXI_OUTPUT_MODE_Output2AndCAMIFToAXIViaOutput1: {
		ctrl->vfeCamifConfigLocal.camif2BusEnable   = TRUE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = TRUE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect  =
			VFE_RAW_OUTPUT_VIEW_CBCR_PATH;

		ctrl->encPath.pathEnabled                   = TRUE;
		ctrl->vfeImaskLocal.encIrq                  = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.encYWrPathEn        = TRUE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn     = TRUE;

		ctrl->viewPath.pathEnabled                   = TRUE;
		ctrl->vfeImaskLocal.viewIrq                  = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_CBCR_ONLY;

		ctrl->vfeBusConfigLocal.viewYWrPathEn        = FALSE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn     = TRUE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq   = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_Output2AndCAMIFToAXIViaOutput1 */
		break;

	case VFE_AXI_OUTPUT_MODE_Output1AndCAMIFToAXIViaOutput2: {
		ctrl->vfeCamifConfigLocal.camif2BusEnable   = TRUE;
		ctrl->vfeCamifConfigLocal.camif2OutputEnable = TRUE;
		ctrl->vfeBusConfigLocal.rawWritePathSelect  =
			VFE_RAW_OUTPUT_ENC_CBCR_PATH;

		ctrl->encPath.pathEnabled                     = TRUE;
		ctrl->vfeImaskLocal.encIrq                    = TRUE;
		ctrl->vfeIrqCompositeMaskLocal.encIrqComMask  =
			VFE_COMP_IRQ_CBCR_ONLY;

		ctrl->vfeBusConfigLocal.encYWrPathEn          = FALSE;
		ctrl->vfeBusConfigLocal.encCbcrWrPathEn       = TRUE;

		ctrl->viewPath.pathEnabled                    = TRUE;
		ctrl->vfeImaskLocal.viewIrq                   = TRUE;

		ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
			VFE_COMP_IRQ_BOTH_Y_CBCR;

		ctrl->vfeBusConfigLocal.viewYWrPathEn         = TRUE;
		ctrl->vfeBusConfigLocal.viewCbcrWrPathEn      = TRUE;

		if (ctrl->vfeBusConfigLocal.encYWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encYPingpongIrq       = TRUE;

		if (ctrl->vfeBusConfigLocal.encCbcrWrPathEn &&
				ctrl->encPath.multiFrag)
			ctrl->vfeImaskLocal.encCbcrPingpongIrq    = TRUE;

		if (ctrl->vfeBusConfigLocal.viewYWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewYPingpongIrq      = TRUE;

		if (ctrl->vfeBusConfigLocal.viewCbcrWrPathEn &&
				ctrl->viewPath.multiFrag)
			ctrl->vfeImaskLocal.viewCbcrPingpongIrq   = TRUE;
	} /* VFE_AXI_OUTPUT_MODE_Output1AndCAMIFToAXIViaOutput2 */
		break;

	case VFE_AXI_LAST_OUTPUT_MODE_ENUM:
		break;
	} /* switch */

	/* Save the addresses for each path. */
	/* output2 path */
	fcnt = ctrl->encPath.fragCount;

	pcircle = ctrl->encPath.yPath.addressBuffer;
	pdest = ctrl->encPath.nextFrameAddrBuf;

	psrc = &(in->output2.outputY.outFragments[0][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output2.outputY.outFragments[1][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output2.outputY.outFragments[2][0]);
	for (i = 0; i < fcnt; i++)
		*pdest++ = *psrc++;

	pcircle = ctrl->encPath.cbcrPath.addressBuffer;

	psrc = &(in->output2.outputCbcr.outFragments[0][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output2.outputCbcr.outFragments[1][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output2.outputCbcr.outFragments[2][0]);
	for (i = 0; i < fcnt; i++)
		*pdest++ = *psrc++;

	vfe_set_bus_pipo_addr(&ctrl->viewPath, &ctrl->encPath);

	ctrl->encPath.ackPending = FALSE;
	ctrl->encPath.currentFrame = ping;
	ctrl->encPath.whichOutputPath = 1;
	ctrl->encPath.yPath.fragIndex = 2;
	ctrl->encPath.cbcrPath.fragIndex = 2;
	ctrl->encPath.yPath.hwCurrentFlag = ping;
	ctrl->encPath.cbcrPath.hwCurrentFlag = ping;

	/* output1 path */
	pcircle = ctrl->viewPath.yPath.addressBuffer;
	pdest = ctrl->viewPath.nextFrameAddrBuf;
	fcnt = ctrl->viewPath.fragCount;

	psrc = &(in->output1.outputY.outFragments[0][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output1.outputY.outFragments[1][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output1.outputY.outFragments[2][0]);
	for (i = 0; i < fcnt; i++)
		*pdest++ = *psrc++;

	pcircle = ctrl->viewPath.cbcrPath.addressBuffer;

	psrc = &(in->output1.outputCbcr.outFragments[0][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output1.outputCbcr.outFragments[1][0]);
	for (i = 0; i < fcnt; i++)
		*pcircle++ = *psrc++;

	psrc = &(in->output1.outputCbcr.outFragments[2][0]);
	for (i = 0; i < fcnt; i++)
		*pdest++ = *psrc++;

	ctrl->viewPath.ackPending = FALSE;
	ctrl->viewPath.currentFrame = ping;
	ctrl->viewPath.whichOutputPath = 0;
	ctrl->viewPath.yPath.fragIndex = 2;
	ctrl->viewPath.cbcrPath.fragIndex = 2;
	ctrl->viewPath.yPath.hwCurrentFlag = ping;
	ctrl->viewPath.cbcrPath.hwCurrentFlag = ping;

	/* call to program the registers. */
	vfe_axi_output(in, &ctrl->viewPath, &ctrl->encPath, axioutpw);
}

void vfe_camif_config(struct vfe_cmd_camif_config *in)
{
	struct vfe_camifcfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	CDBG("camif.frame pixelsPerLine = %d\n", in->frame.pixelsPerLine);
	CDBG("camif.frame linesPerFrame = %d\n", in->frame.linesPerFrame);
	CDBG("camif.window firstpixel = %d\n", in->window.firstpixel);
	CDBG("camif.window lastpixel = %d\n",  in->window.lastpixel);
	CDBG("camif.window firstline = %d\n",  in->window.firstline);
	CDBG("camif.window lastline = %d\n",   in->window.lastline);

	/* determine if epoch interrupt needs to be enabled.  */
	if ((in->epoch1.enable == TRUE) &&
	    (in->epoch1.lineindex <= in->frame.linesPerFrame))
		ctrl->vfeImaskLocal.camifEpoch1Irq = 1;

	if ((in->epoch2.enable == TRUE) &&
	    (in->epoch2.lineindex <= in->frame.linesPerFrame)) {
		ctrl->vfeImaskLocal.camifEpoch2Irq = 1;
	}

	/*  save the content to program CAMIF_CONFIG seperately. */
	ctrl->vfeCamifConfigLocal.camifCfgFromCmd = in->camifConfig;

	/* EFS_Config */
	cmd.efsEndOfLine     = in->EFS.efsendofline;
	cmd.efsStartOfLine   = in->EFS.efsstartofline;
	cmd.efsEndOfFrame    = in->EFS.efsendofframe;
	cmd.efsStartOfFrame  = in->EFS.efsstartofframe;

	/* Frame Config */
	cmd.frameConfigPixelsPerLine = in->frame.pixelsPerLine;
	cmd.frameConfigLinesPerFrame = in->frame.linesPerFrame;

	/* Window Width Config */
	cmd.windowWidthCfgLastPixel  = in->window.lastpixel;
	cmd.windowWidthCfgFirstPixel = in->window.firstpixel;

	/* Window Height Config */
	cmd.windowHeightCfglastLine   = in->window.lastline;
	cmd.windowHeightCfgfirstLine  = in->window.firstline;

	/* Subsample 1 Config */
	cmd.subsample1CfgPixelSkip = in->subsample.pixelskipmask;
	cmd.subsample1CfgLineSkip  = in->subsample.lineskipmask;

	/* Subsample 2 Config */
	cmd.subsample2CfgFrameSkip      = in->subsample.frameskip;
	cmd.subsample2CfgFrameSkipMode  = in->subsample.frameskipmode;
	cmd.subsample2CfgPixelSkipWrap  = in->subsample.pixelskipwrap;

	/* Epoch Interrupt */
	cmd.epoch1Line = in->epoch1.lineindex;
	cmd.epoch2Line = in->epoch2.lineindex;

	vfe_prog_hw(ctrl->vfebase + CAMIF_EFS_CONFIG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_fov_crop_config(struct vfe_cmd_fov_crop_config *in)
{
	struct vfe_fov_crop_cfg cmd;
	memset(&cmd, 0, sizeof(cmd));

	ctrl->vfeModuleEnableLocal.cropEnable = in->enable;

	/* FOV Corp, Part 1 */
	cmd.lastPixel  = in->lastPixel;
	cmd.firstPixel = in->firstPixel;

	/* FOV Corp, Part 2 */
	cmd.lastLine   = in->lastLine;
	cmd.firstLine  = in->firstLine;

	vfe_prog_hw(ctrl->vfebase + VFE_CROP_WIDTH_CFG,
		(uint32_t *)&cmd, sizeof(cmd));
}

void vfe_get_hw_version(struct vfe_cmd_hw_version *out)
{
	uint32_t vfeHwVersionPacked;
	struct vfe_hw_ver ver;

	vfeHwVersionPacked = readl(ctrl->vfebase + VFE_HW_VERSION);

	ver = *((struct vfe_hw_ver *)&vfeHwVersionPacked);

	out->coreVersion  = ver.coreVersion;
	out->minorVersion = ver.minorVersion;
	out->majorVersion = ver.majorVersion;
}

static void vfe_reset_internal_variables(void)
{
	/* local variables to program the hardware. */
	ctrl->vfeImaskPacked = 0;
	ctrl->vfeImaskCompositePacked = 0;

	/* FALSE = disable,  1 = enable. */
	memset(&ctrl->vfeModuleEnableLocal, 0,
		sizeof(ctrl->vfeModuleEnableLocal));

	/* 0 = disable, 1 = enable */
	memset(&ctrl->vfeCamifConfigLocal, 0,
		sizeof(ctrl->vfeCamifConfigLocal));
	/* 0 = disable, 1 = enable */
	memset(&ctrl->vfeImaskLocal, 0, sizeof(ctrl->vfeImaskLocal));
	memset(&ctrl->vfeStatsCmdLocal, 0, sizeof(ctrl->vfeStatsCmdLocal));
	memset(&ctrl->vfeBusConfigLocal, 0, sizeof(ctrl->vfeBusConfigLocal));
	memset(&ctrl->vfeBusPmConfigLocal, 0,
		sizeof(ctrl->vfeBusPmConfigLocal));
	memset(&ctrl->vfeBusCmdLocal, 0, sizeof(ctrl->vfeBusCmdLocal));
	memset(&ctrl->vfeInterruptNameLocal, 0,
		sizeof(ctrl->vfeInterruptNameLocal));
	memset(&ctrl->vfeDroppedFrameCounts, 0,
		sizeof(ctrl->vfeDroppedFrameCounts));
	memset(&ctrl->vfeIrqThreadMsgLocal, 0,
		sizeof(ctrl->vfeIrqThreadMsgLocal));

	/* state control variables */
	ctrl->vfeStartAckPendingFlag = FALSE;
	ctrl->vfeStopAckPending = FALSE;
	ctrl->vfeIrqCompositeMaskLocal.ceDoneSel = 0;
	ctrl->vfeIrqCompositeMaskLocal.encIrqComMask = VFE_COMP_IRQ_BOTH_Y_CBCR;
	ctrl->vfeIrqCompositeMaskLocal.viewIrqComMask =
		VFE_COMP_IRQ_BOTH_Y_CBCR;

	ctrl->vstate = VFE_STATE_IDLE;

	ctrl->axiOutputMode = VFE_AXI_LAST_OUTPUT_MODE_ENUM;
	/* 0 for continuous mode, 1 for snapshot mode */
	ctrl->vfeOperationMode = VFE_START_OPERATION_MODE_CONTINUOUS;
	ctrl->vfeSnapShotCount = 0;
	ctrl->vfeStatsPingPongReloadFlag = FALSE;
	/* this is unsigned 32 bit integer. */
	ctrl->vfeFrameId = 0;
	ctrl->vfeFrameSkip.output1Pattern = 0xffffffff;
	ctrl->vfeFrameSkip.output1Period  = 31;
	ctrl->vfeFrameSkip.output2Pattern = 0xffffffff;
	ctrl->vfeFrameSkip.output2Period  = 31;
	ctrl->vfeFrameSkipPattern = 0xffffffff;
	ctrl->vfeFrameSkipCount   = 0;
	ctrl->vfeFrameSkipPeriod  = 31;

	memset((void *)&ctrl->encPath, 0, sizeof(ctrl->encPath));
	memset((void *)&ctrl->viewPath, 0, sizeof(ctrl->viewPath));

	ctrl->encPath.whichOutputPath  = 1;
	ctrl->encPath.cbcrStatusBit    = 5;
	ctrl->viewPath.whichOutputPath = 0;
	ctrl->viewPath.cbcrStatusBit   = 7;

	ctrl->vfeTestGenStartFlag = FALSE;

	/* default to bank 0. */
	ctrl->vfeLaBankSel = 0;

	/* default to bank 0 for all channels. */
	memset(&ctrl->vfeGammaLutSel, 0, sizeof(ctrl->vfeGammaLutSel));

	/* Stats control variables. */
	memset(&ctrl->afStatsControl, 0, sizeof(ctrl->afStatsControl));
	memset(&ctrl->awbStatsControl, 0, sizeof(ctrl->awbStatsControl));
	vfe_set_stats_pingpong_address(&ctrl->afStatsControl,
		&ctrl->awbStatsControl);
}

void vfe_reset(void)
{
	spin_lock_init(&msm_vfe_ctrl_lock);
	vfe_reset_internal_variables();

	atomic_set(&ctrl->vfe_serv_interrupt, 1);
	ctrl->vfeImaskLocal.resetAckIrq = TRUE;
	ctrl->vfeImaskPacked = vfe_irq_pack(ctrl->vfeImaskLocal);

	/* disable all interrupts. */
	writel(VFE_DISABLE_ALL_IRQS, ctrl->vfebase + VFE_IRQ_COMPOSITE_MASK);

	/* clear all pending interrupts*/
	writel(VFE_CLEAR_ALL_IRQS, ctrl->vfebase + VFE_IRQ_CLEAR);

	/* enable reset_ack interrupt.  */
	writel(ctrl->vfeImaskPacked, ctrl->vfebase + VFE_IRQ_MASK);

	writel(VFE_RESET_UPON_RESET_CMD, ctrl->vfebase + VFE_GLOBAL_RESET_CMD);
}
