/* Copyright (c) 2013-2016, The Linux Foundation. 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.
 */

#define pr_fmt(fmt) "MSM-CPP %s:%d " fmt, __func__, __LINE__


#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/module.h>
#include <linux/ion.h>
#include <linux/proc_fs.h>
#include <linux/msm_ion.h>
#include <linux/iommu.h>
#include <linux/timer.h>
#include <linux/kernel.h>
#include <linux/workqueue.h>
#include <media/v4l2-event.h>
#include <media/v4l2-ioctl.h>
#include <lenovo_media/msmb_camera.h>
#include <lenovo_media/msmb_generic_buf_mgr.h>
#include <lenovo_media/msmb_pproc.h>
#include "msm_cpp.h"
#include "msm_isp_util.h"
#include "msm_camera_io_util.h"
#include <linux/debugfs.h>
#include "cam_smmu_api.h"

#define MSM_CPP_DRV_NAME "msm_cpp"

#define MSM_CPP_MAX_BUFF_QUEUE	16

#define CONFIG_MSM_CPP_DBG	0

#define ENABLE_CPP_LOW		0

#define CPP_CMD_TIMEOUT_MS	300
#define MSM_CPP_INVALID_OFFSET	0x00000000
#define MSM_CPP_NOMINAL_CLOCK	266670000
#define MSM_CPP_TURBO_CLOCK	320000000

#define CPP_FW_VERSION_1_2_0	0x10020000
#define CPP_FW_VERSION_1_4_0	0x10040000
#define CPP_FW_VERSION_1_6_0	0x10060000
#define CPP_FW_VERSION_1_8_0	0x10080000
#define CPP_FW_VERSION_1_10_0	0x10100000

/* dump the frame command before writing to the hardware */
#define  MSM_CPP_DUMP_FRM_CMD 0

#define CPP_CLK_INFO_MAX 16

#define MSM_CPP_IRQ_MASK_VAL 0x7c8

#define CPP_GDSCR_SW_COLLAPSE_ENABLE 0xFFFFFFFE
#define CPP_GDSCR_SW_COLLAPSE_DISABLE 0xFFFFFFFD
#define CPP_GDSCR_HW_CONTROL_ENABLE 0x2
#define CPP_GDSCR_HW_CONTROL_DISABLE 0x1
#define PAYLOAD_NUM_PLANES 3
#define TNR_MASK 0x4
#define UBWC_MASK 0x20
#define CDS_MASK 0x40
#define MMU_PF_MASK 0x80
#define POP_FRONT 1
#define POP_BACK 0
#define BATCH_DUP_MASK 0x100

#define IS_BATCH_BUFFER_ON_PREVIEW(new_frame) \
	(((new_frame->batch_info.batch_mode == BATCH_MODE_PREVIEW) && \
	new_frame->duplicate_output) ? 1 : 0)

#define SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(new_frame, iden, swap_iden) { \
	if (IS_BATCH_BUFFER_ON_PREVIEW(new_frame)) \
		iden = swap_iden; \
}
static int msm_cpp_buffer_ops(struct cpp_device *cpp_dev,
	uint32_t buff_mgr_ops, struct msm_buf_mngr_info *buff_mgr_info);
static int msm_cpp_send_frame_to_hardware(struct cpp_device *cpp_dev,
	struct msm_queue_cmd *frame_qcmd);
static int msm_cpp_send_command_to_hardware(struct cpp_device *cpp_dev,
	uint32_t *cmd_msg, uint32_t payload_size);

static  int msm_cpp_update_gdscr_status(struct cpp_device *cpp_dev,
	bool status);
#if CONFIG_MSM_CPP_DBG
#define CPP_DBG(fmt, args...) pr_err(fmt, ##args)
#else
#define CPP_DBG(fmt, args...) pr_debug(fmt, ##args)
#endif

#define CPP_LOW(fmt, args...) do { \
	if (ENABLE_CPP_LOW) \
		pr_info(fmt, ##args); \
	} while (0)

#define ERR_USER_COPY(to) pr_err("copy %s user\n", \
			((to) ? "to" : "from"))
#define ERR_COPY_FROM_USER() ERR_USER_COPY(0)

#define msm_dequeue(queue, member, pop_dir) ({	   \
	unsigned long flags;		  \
	struct msm_device_queue *__q = (queue);	 \
	struct msm_queue_cmd *qcmd = 0;	   \
	spin_lock_irqsave(&__q->lock, flags);	 \
	if (!list_empty(&__q->list)) {		\
		__q->len--;		 \
		qcmd = pop_dir ? list_first_entry(&__q->list,   \
			struct msm_queue_cmd, member) :    \
			list_last_entry(&__q->list,   \
			struct msm_queue_cmd, member);    \
		list_del_init(&qcmd->member);	 \
	}			 \
	spin_unlock_irqrestore(&__q->lock, flags);  \
	qcmd;			 \
})

#define MSM_CPP_MAX_TIMEOUT_TRIAL 1

struct msm_cpp_timer_data_t {
	struct cpp_device *cpp_dev;
	struct msm_cpp_frame_info_t *processed_frame[MAX_CPP_PROCESSING_FRAME];
	spinlock_t processed_frame_lock;
};

struct msm_cpp_timer_t {
	atomic_t used;
	struct msm_cpp_timer_data_t data;
	struct timer_list cpp_timer;
};

struct msm_cpp_timer_t cpp_timer;
static void msm_cpp_set_vbif_reg_values(struct cpp_device *cpp_dev);

static int msm_cpp_init_bandwidth_mgr(struct cpp_device *cpp_dev)
{
	int rc = 0;

	rc = msm_camera_register_bus_client(cpp_dev->pdev, CAM_BUS_CLIENT_CPP);
	if (rc < 0) {
		pr_err("Fail to register bus client\n");
		return -ENOENT;
	}

	rc = msm_camera_update_bus_bw(CAM_BUS_CLIENT_CPP, 0, 0);
	if (rc < 0) {
		msm_camera_unregister_bus_client(CAM_BUS_CLIENT_CPP);
		pr_err("Fail bus scale update %d\n", rc);
		return -EINVAL;
	}

	return 0;
}

static int msm_cpp_update_bandwidth(struct cpp_device *cpp_dev,
	uint64_t ab, uint64_t ib)
{

	int rc;

	rc = msm_camera_update_bus_bw(CAM_BUS_CLIENT_CPP, ab, ib);
	if (rc < 0) {
		pr_err("Fail bus scale update %d\n", rc);
		return -EINVAL;
	}

	return 0;
}

void msm_cpp_deinit_bandwidth_mgr(struct cpp_device *cpp_dev)
{
	int rc = 0;

	rc = msm_camera_unregister_bus_client(CAM_BUS_CLIENT_CPP);
	if (rc < 0) {
		pr_err("Failed to unregister %d\n", rc);
		return;
	}
}

static int  msm_cpp_update_bandwidth_setting(struct cpp_device *cpp_dev,
	uint64_t ab, uint64_t ib) {
	int rc;
	if (cpp_dev->bus_master_flag)
		rc = msm_cpp_update_bandwidth(cpp_dev, ab, ib);
	else
		rc = msm_isp_update_bandwidth(ISP_CPP, ab, ib);
	return rc;
}

static void msm_queue_init(struct msm_device_queue *queue, const char *name)
{
	CPP_DBG("E\n");
	spin_lock_init(&queue->lock);
	queue->len = 0;
	queue->max = 0;
	queue->name = name;
	INIT_LIST_HEAD(&queue->list);
	init_waitqueue_head(&queue->wait);
}

static void msm_enqueue(struct msm_device_queue *queue,
			struct list_head *entry)
{
	unsigned long flags;
	spin_lock_irqsave(&queue->lock, flags);
	queue->len++;
	if (queue->len > queue->max) {
		queue->max = queue->len;
		pr_debug("queue %s new max is %d\n", queue->name, queue->max);
	}
	list_add_tail(entry, &queue->list);
	wake_up(&queue->wait);
	CPP_DBG("woke up %s\n", queue->name);
	spin_unlock_irqrestore(&queue->lock, flags);
}

#define msm_cpp_empty_list(queue, member) { \
	unsigned long flags; \
	struct msm_queue_cmd *qcmd = NULL; \
	if (queue) { \
		spin_lock_irqsave(&queue->lock, flags); \
		while (!list_empty(&queue->list)) { \
			queue->len--; \
			qcmd = list_first_entry(&queue->list, \
				struct msm_queue_cmd, member); \
			list_del_init(&qcmd->member); \
			kfree(qcmd); \
		} \
		spin_unlock_irqrestore(&queue->lock, flags); \
	} \
}



static int msm_cpp_notify_frame_done(struct cpp_device *cpp_dev,
	uint8_t put_buf);
static int32_t cpp_load_fw(struct cpp_device *cpp_dev, char *fw_name_bin);
static void cpp_timer_callback(unsigned long data);

uint8_t induce_error;
static int msm_cpp_enable_debugfs(struct cpp_device *cpp_dev);

static void msm_cpp_write(u32 data, void __iomem *cpp_base)
{
	msm_camera_io_w((data), cpp_base + MSM_CPP_MICRO_FIFO_RX_DATA);
}

static void msm_cpp_clear_timer(struct cpp_device *cpp_dev)
{
	uint32_t i = 0;

	if (atomic_read(&cpp_timer.used)) {
		atomic_set(&cpp_timer.used, 0);
		del_timer(&cpp_timer.cpp_timer);
		for (i = 0; i < MAX_CPP_PROCESSING_FRAME; i++)
			cpp_timer.data.processed_frame[i] = NULL;
		cpp_dev->timeout_trial_cnt = 0;
	}
}

static void msm_cpp_timer_queue_update(struct cpp_device *cpp_dev)
{
	uint32_t i;
	unsigned long flags;
	CPP_DBG("Frame done qlen %d\n", cpp_dev->processing_q.len);
	if (cpp_dev->processing_q.len <= 1) {
		msm_cpp_clear_timer(cpp_dev);
	} else {
		spin_lock_irqsave(&cpp_timer.data.processed_frame_lock, flags);
		for (i = 0; i < cpp_dev->processing_q.len - 1; i++)
			cpp_timer.data.processed_frame[i] =
				cpp_timer.data.processed_frame[i + 1];
		cpp_timer.data.processed_frame[i] = NULL;
		cpp_dev->timeout_trial_cnt = 0;
		spin_unlock_irqrestore(&cpp_timer.data.processed_frame_lock,
			flags);

		mod_timer(&cpp_timer.cpp_timer,
			jiffies + msecs_to_jiffies(CPP_CMD_TIMEOUT_MS));
	}
}

static uint32_t msm_cpp_read(void __iomem *cpp_base)
{
	uint32_t tmp, retry = 0;
	do {
		tmp = msm_camera_io_r(cpp_base + MSM_CPP_MICRO_FIFO_TX_STAT);
	} while (((tmp & 0x2) == 0x0) && (retry++ < 10));
	if (retry < 10) {
		tmp = msm_camera_io_r(cpp_base + MSM_CPP_MICRO_FIFO_TX_DATA);
		CPP_DBG("Read data: 0%x\n", tmp);
	} else {
		CPP_DBG("Read failed\n");
		tmp = 0xDEADBEEF;
	}

	return tmp;
}

static struct msm_cpp_buff_queue_info_t *msm_cpp_get_buff_queue_entry(
	struct cpp_device *cpp_dev, uint32_t session_id, uint32_t stream_id)
{
	uint32_t i = 0;
	struct msm_cpp_buff_queue_info_t *buff_queue_info = NULL;

	for (i = 0; i < cpp_dev->num_buffq; i++) {
		if ((cpp_dev->buff_queue[i].used == 1) &&
			(cpp_dev->buff_queue[i].session_id == session_id) &&
			(cpp_dev->buff_queue[i].stream_id == stream_id)) {
			buff_queue_info = &cpp_dev->buff_queue[i];
			break;
		}
	}

	if (buff_queue_info == NULL) {
		CPP_DBG("buffer queue entry for sess:%d strm:%d not found\n",
			session_id, stream_id);
	}
	return buff_queue_info;
}

static unsigned long msm_cpp_get_phy_addr(struct cpp_device *cpp_dev,
	struct msm_cpp_buff_queue_info_t *buff_queue_info, uint32_t buff_index,
	uint8_t native_buff, int32_t *fd)
{
	unsigned long phy_add = 0;
	struct list_head *buff_head;
	struct msm_cpp_buffer_map_list_t *buff, *save;

	if (native_buff)
		buff_head = &buff_queue_info->native_buff_head;
	else
		buff_head = &buff_queue_info->vb2_buff_head;

	list_for_each_entry_safe(buff, save, buff_head, entry) {
		if (buff->map_info.buff_info.index == buff_index) {
			phy_add = buff->map_info.phy_addr;
			*fd = buff->map_info.buff_info.fd;
			break;
		}
	}

	return phy_add;
}

static unsigned long msm_cpp_queue_buffer_info(struct cpp_device *cpp_dev,
	struct msm_cpp_buff_queue_info_t *buff_queue,
	struct msm_cpp_buffer_info_t *buffer_info)
{
	struct list_head *buff_head;
	struct msm_cpp_buffer_map_list_t *buff, *save;
	int rc = 0;

	if (buffer_info->native_buff)
		buff_head = &buff_queue->native_buff_head;
	else
		buff_head = &buff_queue->vb2_buff_head;

	list_for_each_entry_safe(buff, save, buff_head, entry) {
		if (buff->map_info.buff_info.index == buffer_info->index) {
			pr_err("error buffer index already queued\n");
			goto error;
		}
	}

	buff = kzalloc(
		sizeof(struct msm_cpp_buffer_map_list_t), GFP_KERNEL);
	if (!buff) {
		pr_err("error allocating memory\n");
		goto error;
	}
	buff->map_info.buff_info = *buffer_info;

	buff->map_info.buf_fd = buffer_info->fd;
	rc = cam_smmu_get_phy_addr(cpp_dev->iommu_hdl, buffer_info->fd,
				CAM_SMMU_MAP_RW, &buff->map_info.phy_addr,
				(size_t *)&buff->map_info.len);
	if (rc < 0) {
		pr_err("ION mmap failed\n");
		kzfree(buff);
		goto error;
	}

	INIT_LIST_HEAD(&buff->entry);
	list_add_tail(&buff->entry, buff_head);

	return buff->map_info.phy_addr;
error:
	return 0;
}

static void msm_cpp_dequeue_buffer_info(struct cpp_device *cpp_dev,
	struct msm_cpp_buffer_map_list_t *buff)
{
	int ret = -1;
	ret = cam_smmu_put_phy_addr(cpp_dev->iommu_hdl, buff->map_info.buf_fd);
	if (ret < 0)
		pr_err("Error: cannot put the iommu handle back to ion fd\n");

	list_del_init(&buff->entry);
	kzfree(buff);

	return;
}

static unsigned long msm_cpp_fetch_buffer_info(struct cpp_device *cpp_dev,
	struct msm_cpp_buffer_info_t *buffer_info, uint32_t session_id,
	uint32_t stream_id, int32_t *fd)
{
	unsigned long phy_addr = 0;
	struct msm_cpp_buff_queue_info_t *buff_queue_info;
	uint8_t native_buff = buffer_info->native_buff;

	buff_queue_info = msm_cpp_get_buff_queue_entry(cpp_dev, session_id,
		stream_id);
	if (buff_queue_info == NULL) {
		pr_err("error finding buffer queue entry for sessid:%d strmid:%d\n",
			session_id, stream_id);
		return phy_addr;
	}

	phy_addr = msm_cpp_get_phy_addr(cpp_dev, buff_queue_info,
		buffer_info->index, native_buff, fd);
	if ((phy_addr == 0) && (native_buff)) {
		phy_addr = msm_cpp_queue_buffer_info(cpp_dev, buff_queue_info,
			buffer_info);
		*fd = buffer_info->fd;
	}
	return phy_addr;
}

static int32_t msm_cpp_dequeue_buff_info_list(struct cpp_device *cpp_dev,
	struct msm_cpp_buff_queue_info_t *buff_queue_info)
{
	struct msm_cpp_buffer_map_list_t *buff, *save;
	struct list_head *buff_head;

	buff_head = &buff_queue_info->native_buff_head;
	list_for_each_entry_safe(buff, save, buff_head, entry) {
		msm_cpp_dequeue_buffer_info(cpp_dev, buff);
	}

	buff_head = &buff_queue_info->vb2_buff_head;
	list_for_each_entry_safe(buff, save, buff_head, entry) {
		msm_cpp_dequeue_buffer_info(cpp_dev, buff);
	}

	return 0;
}

static int32_t msm_cpp_dequeue_buff(struct cpp_device *cpp_dev,
	struct msm_cpp_buff_queue_info_t *buff_queue_info, uint32_t buff_index,
	uint8_t native_buff)
{
	struct msm_cpp_buffer_map_list_t *buff, *save;
	struct list_head *buff_head;

	if (native_buff)
		buff_head = &buff_queue_info->native_buff_head;
	else
		buff_head = &buff_queue_info->vb2_buff_head;

	list_for_each_entry_safe(buff, save, buff_head, entry) {
		if (buff->map_info.buff_info.index == buff_index) {
			msm_cpp_dequeue_buffer_info(cpp_dev, buff);
			break;
		}
	}

	return 0;
}

static int32_t msm_cpp_add_buff_queue_entry(struct cpp_device *cpp_dev,
	uint16_t session_id, uint16_t stream_id)
{
	uint32_t i;
	struct msm_cpp_buff_queue_info_t *buff_queue_info;

	for (i = 0; i < cpp_dev->num_buffq; i++) {
		if (cpp_dev->buff_queue[i].used == 0) {
			buff_queue_info = &cpp_dev->buff_queue[i];
			buff_queue_info->used = 1;
			buff_queue_info->session_id = session_id;
			buff_queue_info->stream_id = stream_id;
			INIT_LIST_HEAD(&buff_queue_info->vb2_buff_head);
			INIT_LIST_HEAD(&buff_queue_info->native_buff_head);
			return 0;
		}
	}
	pr_err("buffer queue full. error for sessionid: %d streamid: %d\n",
		session_id, stream_id);
	return -EINVAL;
}

static int32_t msm_cpp_free_buff_queue_entry(struct cpp_device *cpp_dev,
	uint32_t session_id, uint32_t stream_id)
{
	struct msm_cpp_buff_queue_info_t *buff_queue_info;

	buff_queue_info = msm_cpp_get_buff_queue_entry(cpp_dev, session_id,
		stream_id);
	if (buff_queue_info == NULL) {
		pr_err("error finding buffer queue entry for sessid:%d strmid:%d\n",
			session_id, stream_id);
		return -EINVAL;
	}

	buff_queue_info->used = 0;
	buff_queue_info->session_id = 0;
	buff_queue_info->stream_id = 0;
	INIT_LIST_HEAD(&buff_queue_info->vb2_buff_head);
	INIT_LIST_HEAD(&buff_queue_info->native_buff_head);
	return 0;
}

static int32_t msm_cpp_create_buff_queue(struct cpp_device *cpp_dev,
	uint32_t num_buffq)
{
	struct msm_cpp_buff_queue_info_t *buff_queue;
	buff_queue = kzalloc(
		sizeof(struct msm_cpp_buff_queue_info_t) * num_buffq,
		GFP_KERNEL);
	if (!buff_queue) {
		pr_err("Buff queue allocation failure\n");
		return -ENOMEM;
	}

	if (cpp_dev->buff_queue) {
		pr_err("Buff queue not empty\n");
		kzfree(buff_queue);
		return -EINVAL;
	} else {
		cpp_dev->buff_queue = buff_queue;
		cpp_dev->num_buffq = num_buffq;
	}
	return 0;
}

static void msm_cpp_delete_buff_queue(struct cpp_device *cpp_dev)
{
	uint32_t i;

	for (i = 0; i < cpp_dev->num_buffq; i++) {
		if (cpp_dev->buff_queue[i].used == 1) {
			pr_warn("Queue not free sessionid: %d, streamid: %d\n",
				cpp_dev->buff_queue[i].session_id,
				cpp_dev->buff_queue[i].stream_id);
			msm_cpp_dequeue_buff_info_list
				(cpp_dev, &cpp_dev->buff_queue[i]);
			msm_cpp_free_buff_queue_entry(cpp_dev,
				cpp_dev->buff_queue[i].session_id,
				cpp_dev->buff_queue[i].stream_id);
		}
	}
	kzfree(cpp_dev->buff_queue);
	cpp_dev->buff_queue = NULL;
	cpp_dev->num_buffq = 0;
	return;
}

static int32_t msm_cpp_poll(void __iomem *cpp_base, u32 val)
{
	uint32_t tmp, retry = 0;
	int32_t rc = 0;
	do {
		tmp = msm_cpp_read(cpp_base);
		if (tmp != 0xDEADBEEF)
			CPP_LOW("poll: 0%x\n", tmp);
		usleep_range(200, 250);
	} while ((tmp != val) && (retry++ < MSM_CPP_POLL_RETRIES));
	if (retry < MSM_CPP_POLL_RETRIES) {
		CPP_LOW("Poll finished\n");
	} else {
		pr_err("Poll failed: expect: 0x%x\n", val);
		rc = -EINVAL;
	}
	return rc;
}

static int32_t msm_cpp_poll_rx_empty(void __iomem *cpp_base)
{
	uint32_t tmp, retry = 0;
	int32_t rc = 0;

	tmp = msm_camera_io_r(cpp_base + MSM_CPP_MICRO_FIFO_RX_STAT);
	while (((tmp & 0x2) != 0x0) && (retry++ < MSM_CPP_POLL_RETRIES)) {
		/*
		* Below usleep values are chosen based on experiments
		* and this was the smallest number which works. This
		* sleep is needed to leave enough time for Microcontroller
		* to read rx fifo.
		*/
		usleep_range(200, 300);
		tmp = msm_camera_io_r(cpp_base + MSM_CPP_MICRO_FIFO_RX_STAT);
	}

	if (retry < MSM_CPP_POLL_RETRIES) {
		CPP_LOW("Poll rx empty\n");
	} else {
		pr_err("Poll rx empty failed\n");
		rc = -EINVAL;
	}
	return rc;
}


static int cpp_init_mem(struct cpp_device *cpp_dev)
{
	int rc = 0;
	int iommu_hdl;

	if (cpp_dev->hw_info.cpp_hw_version == CPP_HW_VERSION_5_0_0 ||
		cpp_dev->hw_info.cpp_hw_version == CPP_HW_VERSION_5_1_0)
		rc = cam_smmu_get_handle("cpp_0", &iommu_hdl);
	else
		rc = cam_smmu_get_handle("cpp", &iommu_hdl);

	if (rc < 0)
		return -ENODEV;

	cpp_dev->iommu_hdl = iommu_hdl;
	return 0;
}


static irqreturn_t msm_cpp_irq(int irq_num, void *data)
{
	unsigned long flags;
	uint32_t tx_level;
	uint32_t irq_status;
	uint32_t i;
	uint32_t tx_fifo[MSM_CPP_TX_FIFO_LEVEL];
	struct cpp_device *cpp_dev = data;
	struct msm_cpp_tasklet_queue_cmd *queue_cmd;
	irq_status = msm_camera_io_r(cpp_dev->base + MSM_CPP_MICRO_IRQGEN_STAT);

	if (irq_status & 0x8) {
		tx_level = msm_camera_io_r(cpp_dev->base +
			MSM_CPP_MICRO_FIFO_TX_STAT) >> 2;
		for (i = 0; i < tx_level; i++) {
			tx_fifo[i] = msm_camera_io_r(cpp_dev->base +
				MSM_CPP_MICRO_FIFO_TX_DATA);
		}
		spin_lock_irqsave(&cpp_dev->tasklet_lock, flags);
		queue_cmd = &cpp_dev->tasklet_queue_cmd[cpp_dev->taskletq_idx];
		if (queue_cmd->cmd_used) {
			pr_err("%s:%d] cpp tasklet queue overflow tx %d rc %x",
				__func__, __LINE__, tx_level, irq_status);
			list_del(&queue_cmd->list);
		} else {
			atomic_add(1, &cpp_dev->irq_cnt);
		}
		queue_cmd->irq_status = irq_status;
		queue_cmd->tx_level = tx_level;
		memset(&queue_cmd->tx_fifo[0], 0, sizeof(queue_cmd->tx_fifo));
		for (i = 0; i < tx_level; i++)
			queue_cmd->tx_fifo[i] = tx_fifo[i];

		queue_cmd->cmd_used = 1;
		cpp_dev->taskletq_idx =
			(cpp_dev->taskletq_idx + 1) % MSM_CPP_TASKLETQ_SIZE;
		list_add_tail(&queue_cmd->list, &cpp_dev->tasklet_q);
		spin_unlock_irqrestore(&cpp_dev->tasklet_lock, flags);

		tasklet_schedule(&cpp_dev->cpp_tasklet);
	} else if (irq_status & 0x7C0) {
		pr_debug("irq_status: 0x%x\n", irq_status);
		pr_debug("DEBUG_SP: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x40));
		pr_debug("DEBUG_T: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x44));
		pr_debug("DEBUG_N: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x48));
		pr_debug("DEBUG_R: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x4C));
		pr_debug("DEBUG_OPPC: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x50));
		pr_debug("DEBUG_MO: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x54));
		pr_debug("DEBUG_TIMER0: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x60));
		pr_debug("DEBUG_TIMER1: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x64));
		pr_debug("DEBUG_GPI: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x70));
		pr_debug("DEBUG_GPO: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x74));
		pr_debug("DEBUG_T0: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x80));
		pr_debug("DEBUG_R0: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x84));
		pr_debug("DEBUG_T1: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x88));
		pr_debug("DEBUG_R1: 0x%x\n",
			msm_camera_io_r(cpp_dev->base + 0x8C));
	}
	msm_camera_io_w(irq_status, cpp_dev->base + MSM_CPP_MICRO_IRQGEN_CLR);
	return IRQ_HANDLED;
}

void msm_cpp_do_tasklet(unsigned long data)
{
	unsigned long flags;
	uint32_t irq_status;
	uint32_t tx_level;
	uint32_t msg_id, cmd_len;
	uint32_t i;
	uint32_t tx_fifo[MSM_CPP_TX_FIFO_LEVEL];
	struct cpp_device *cpp_dev = (struct cpp_device *) data;
	struct msm_cpp_tasklet_queue_cmd *queue_cmd;

	while (atomic_read(&cpp_dev->irq_cnt)) {
		spin_lock_irqsave(&cpp_dev->tasklet_lock, flags);
		queue_cmd = list_first_entry(&cpp_dev->tasklet_q,
		struct msm_cpp_tasklet_queue_cmd, list);
		if (!queue_cmd) {
			atomic_set(&cpp_dev->irq_cnt, 0);
			spin_unlock_irqrestore(&cpp_dev->tasklet_lock, flags);
			return;
		}
		atomic_sub(1, &cpp_dev->irq_cnt);
		list_del(&queue_cmd->list);
		queue_cmd->cmd_used = 0;
		irq_status = queue_cmd->irq_status;
		tx_level = queue_cmd->tx_level;
		for (i = 0; i < tx_level; i++)
			tx_fifo[i] = queue_cmd->tx_fifo[i];

		spin_unlock_irqrestore(&cpp_dev->tasklet_lock, flags);

		for (i = 0; i < tx_level; i++) {
			if (tx_fifo[i] == MSM_CPP_MSG_ID_CMD) {
				cmd_len = tx_fifo[i+1];
				msg_id = tx_fifo[i+2];
				if (msg_id == MSM_CPP_MSG_ID_FRAME_ACK) {
					CPP_DBG("Frame done!!\n");
					/* delete CPP timer */
					CPP_DBG("delete timer.\n");
					msm_cpp_timer_queue_update(cpp_dev);
					msm_cpp_notify_frame_done(cpp_dev, 0);
				} else if (msg_id ==
					MSM_CPP_MSG_ID_FRAME_NACK) {
					pr_err("NACK error from hw!!\n");
					CPP_DBG("delete timer.\n");
					msm_cpp_timer_queue_update(cpp_dev);
					msm_cpp_notify_frame_done(cpp_dev, 0);
				}
				i += cmd_len + 2;
			}
		}
	}
}

static int cpp_init_hardware(struct cpp_device *cpp_dev)
{
	int rc = 0;
	uint32_t vbif_version;

	rc = cam_config_ahb_clk(NULL, 0, CAM_AHB_CLIENT_CPP,
			CAM_AHB_SVS_VOTE);
	if (rc < 0) {
		pr_err("%s: failed to vote for AHB\n", __func__);
		goto ahb_vote_fail;
	}

	rc = msm_camera_regulator_enable(cpp_dev->cpp_vdd,
		cpp_dev->num_reg, true);
	if (rc < 0) {
		pr_err("%s: failed to enable regulators\n", __func__);
		goto reg_enable_failed;
	}

	rc = msm_cpp_set_micro_clk(cpp_dev);
	if (rc < 0) {
		pr_err("%s: set micro clk failed\n", __func__);
		goto clk_failed;
	}

	rc = msm_camera_clk_enable(&cpp_dev->pdev->dev, cpp_dev->clk_info,
			cpp_dev->cpp_clk, cpp_dev->num_clks, true);
	if (rc < 0) {
		pr_err("%s: clk enable failed\n", __func__);
		goto clk_failed;
	}

	if (cpp_dev->state != CPP_STATE_BOOT) {
		rc = msm_camera_register_irq(cpp_dev->pdev, cpp_dev->irq,
			msm_cpp_irq, IRQF_TRIGGER_RISING, "cpp", cpp_dev);
		if (rc < 0) {
			pr_err("%s: irq request fail\n", __func__);
			goto req_irq_fail;
		}
		cpp_dev->buf_mgr_subdev = msm_buf_mngr_get_subdev();

		rc = msm_cpp_buffer_ops(cpp_dev,
			VIDIOC_MSM_BUF_MNGR_INIT, NULL);
		if (rc < 0) {
			pr_err("buf mngr init failed\n");
			msm_camera_unregister_irq(cpp_dev->pdev,
				cpp_dev->irq, cpp_dev);
			goto req_irq_fail;
		}
	}

	cpp_dev->hw_info.cpp_hw_version =
		msm_camera_io_r(cpp_dev->cpp_hw_base);
	if (cpp_dev->hw_info.cpp_hw_version == CPP_HW_VERSION_4_1_0) {
		vbif_version = msm_camera_io_r(cpp_dev->vbif_base);
		if (vbif_version == VBIF_VERSION_2_3_0)
			cpp_dev->hw_info.cpp_hw_version = CPP_HW_VERSION_4_0_0;
	}
	pr_info("CPP HW Version: 0x%x\n", cpp_dev->hw_info.cpp_hw_version);
	cpp_dev->hw_info.cpp_hw_caps =
		msm_camera_io_r(cpp_dev->cpp_hw_base + 0x4);

	rc = msm_update_freq_tbl(cpp_dev);
	if (rc < 0)
		goto pwr_collapse_reset;

	pr_debug("CPP HW Caps: 0x%x\n", cpp_dev->hw_info.cpp_hw_caps);
	msm_camera_io_w(0x1, cpp_dev->vbif_base + 0x4);
	cpp_dev->taskletq_idx = 0;
	atomic_set(&cpp_dev->irq_cnt, 0);
	rc = msm_cpp_create_buff_queue(cpp_dev, MSM_CPP_MAX_BUFF_QUEUE);
	if (rc < 0) {
		pr_err("%s: create buff queue failed with err %d\n",
			__func__, rc);
		goto pwr_collapse_reset;
	}
	pr_err("stream_cnt:%d\n", cpp_dev->stream_cnt);
	cpp_dev->stream_cnt = 0;
	if (cpp_dev->fw_name_bin) {
		msm_camera_enable_irq(cpp_dev->irq, false);
		rc = cpp_load_fw(cpp_dev, cpp_dev->fw_name_bin);
		msm_camera_enable_irq(cpp_dev->irq, true);
		if (rc < 0) {
			pr_err("%s: load firmware failure %d\n", __func__, rc);
			goto pwr_collapse_reset;
		}
		msm_camera_io_w_mb(0x7C8, cpp_dev->base +
			MSM_CPP_MICRO_IRQGEN_MASK);
		msm_camera_io_w_mb(0xFFFF, cpp_dev->base +
			MSM_CPP_MICRO_IRQGEN_CLR);
	}

	msm_cpp_set_vbif_reg_values(cpp_dev);
	return rc;

pwr_collapse_reset:
	msm_cpp_update_gdscr_status(cpp_dev, false);
req_irq_fail:
	msm_camera_clk_enable(&cpp_dev->pdev->dev, cpp_dev->clk_info,
		cpp_dev->cpp_clk, cpp_dev->num_clks, false);
clk_failed:
	msm_camera_regulator_enable(cpp_dev->cpp_vdd,
		cpp_dev->num_reg, false);
reg_enable_failed:
	if (cam_config_ahb_clk(NULL, 0, CAM_AHB_CLIENT_CPP,
		CAM_AHB_SUSPEND_VOTE) < 0)
		pr_err("%s: failed to remove vote for AHB\n", __func__);
ahb_vote_fail:
	return rc;
}

static void cpp_release_hardware(struct cpp_device *cpp_dev)
{
	int32_t rc;
	if (cpp_dev->state != CPP_STATE_BOOT) {
		rc = msm_cpp_buffer_ops(cpp_dev,
			VIDIOC_MSM_BUF_MNGR_DEINIT, NULL);
		if (rc < 0) {
			pr_err("error in buf mngr deinit\n");
			rc = -EINVAL;
		}
		msm_camera_unregister_irq(cpp_dev->pdev, cpp_dev->irq, cpp_dev);
		tasklet_kill(&cpp_dev->cpp_tasklet);
		atomic_set(&cpp_dev->irq_cnt, 0);
	}
	msm_cpp_delete_buff_queue(cpp_dev);
	msm_cpp_update_gdscr_status(cpp_dev, false);
	msm_camera_clk_enable(&cpp_dev->pdev->dev, cpp_dev->clk_info,
		cpp_dev->cpp_clk, cpp_dev->num_clks, false);
	msm_camera_regulator_enable(cpp_dev->cpp_vdd, cpp_dev->num_reg, false);
	if (cpp_dev->stream_cnt > 0) {
		pr_warn("stream count active\n");
		rc = msm_cpp_update_bandwidth_setting(cpp_dev, 0, 0);
	}
	cpp_dev->stream_cnt = 0;

	if (cam_config_ahb_clk(NULL, 0, CAM_AHB_CLIENT_CPP,
		CAM_AHB_SUSPEND_VOTE) < 0)
		pr_err("%s: failed to remove vote for AHB\n", __func__);
}

static int32_t cpp_load_fw(struct cpp_device *cpp_dev, char *fw_name_bin)
{
	uint32_t i;
	uint32_t *ptr_bin = NULL;
	int32_t rc = 0;

	if (!fw_name_bin) {
		pr_err("%s:%d] invalid fw name", __func__, __LINE__);
		rc = -EINVAL;
		goto end;
	}
	pr_debug("%s:%d] FW file: %s\n", __func__, __LINE__, fw_name_bin);
	if (NULL == cpp_dev->fw) {
		pr_err("%s:%d] fw NULL", __func__, __LINE__);
		rc = -EINVAL;
		goto end;
	}

	ptr_bin = (uint32_t *)cpp_dev->fw->data;
	if (!ptr_bin) {
		pr_err("%s:%d] Fw bin NULL", __func__, __LINE__);
		rc = -EINVAL;
		goto end;
	}

	msm_camera_io_w(0x1, cpp_dev->base + MSM_CPP_MICRO_CLKEN_CTL);
	msm_camera_io_w(0x1, cpp_dev->base +
			 MSM_CPP_MICRO_BOOT_START);

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_CMD);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_CMD, rc);
		goto end;
	}

	msm_camera_io_w(0xFFFFFFFF, cpp_dev->base +
		MSM_CPP_MICRO_IRQGEN_CLR);

	rc = msm_cpp_poll_rx_empty(cpp_dev->base);
	if (rc) {
		pr_err("%s:%d] poll rx empty failed %d",
			__func__, __LINE__, rc);
		goto end;
	}
	/*Start firmware loading*/
	msm_cpp_write(MSM_CPP_CMD_FW_LOAD, cpp_dev->base);
	msm_cpp_write(cpp_dev->fw->size, cpp_dev->base);
	msm_cpp_write(MSM_CPP_START_ADDRESS, cpp_dev->base);
	rc = msm_cpp_poll_rx_empty(cpp_dev->base);
	if (rc) {
		pr_err("%s:%d] poll rx empty failed %d",
			__func__, __LINE__, rc);
		goto end;
	}
	for (i = 0; i < cpp_dev->fw->size/4; i++) {
		msm_cpp_write(*ptr_bin, cpp_dev->base);
		if (i % MSM_CPP_RX_FIFO_LEVEL == 0) {
			rc = msm_cpp_poll_rx_empty(cpp_dev->base);
			if (rc) {
				pr_err("%s:%d] poll rx empty failed %d",
					__func__, __LINE__, rc);
				goto end;
			}
		}
		ptr_bin++;
	}
	msm_camera_io_w_mb(0x00, cpp_dev->cpp_hw_base + 0xC);
	rc = msm_cpp_update_gdscr_status(cpp_dev, true);
	if (rc < 0)
		pr_err("update cpp gdscr status failed\n");
	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_OK);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_OK, rc);
		goto end;
	}

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_CMD);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_CMD, rc);
		goto end;
	}

	rc = msm_cpp_poll_rx_empty(cpp_dev->base);
	if (rc) {
		pr_err("%s:%d] poll rx empty failed %d",
			__func__, __LINE__, rc);
		goto end;
	}
	/*Trigger MC to jump to start address*/
	msm_cpp_write(MSM_CPP_CMD_EXEC_JUMP, cpp_dev->base);
	msm_cpp_write(MSM_CPP_JUMP_ADDRESS, cpp_dev->base);

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_CMD);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_CMD, rc);
		goto end;
	}

	rc = msm_cpp_poll(cpp_dev->base, 0x1);
	if (rc) {
		pr_err("%s:%d] poll command 0x1 failed %d", __func__, __LINE__,
			rc);
		goto end;
	}

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_JUMP_ACK);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_JUMP_ACK, rc);
		goto end;
	}

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_TRAILER);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_JUMP_ACK, rc);
	}

end:
	return rc;
}

static int cpp_open_node(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
	int rc;
	uint32_t i;
	struct cpp_device *cpp_dev = NULL;
	CPP_DBG("E\n");

	if (!sd || !fh) {
		pr_err("Wrong input parameters sd %p fh %p!",
			sd, fh);
		return -EINVAL;
	}
	cpp_dev = v4l2_get_subdevdata(sd);
	if (!cpp_dev) {
		pr_err("failed: cpp_dev %p\n", cpp_dev);
		return -EINVAL;
	}
	mutex_lock(&cpp_dev->mutex);
	if (cpp_dev->cpp_open_cnt == MAX_ACTIVE_CPP_INSTANCE) {
		pr_err("No free CPP instance\n");
		mutex_unlock(&cpp_dev->mutex);
		return -ENODEV;
	}

	for (i = 0; i < MAX_ACTIVE_CPP_INSTANCE; i++) {
		if (cpp_dev->cpp_subscribe_list[i].active == 0) {
			cpp_dev->cpp_subscribe_list[i].active = 1;
			cpp_dev->cpp_subscribe_list[i].vfh = &fh->vfh;
			break;
		}
	}
	if (i == MAX_ACTIVE_CPP_INSTANCE) {
		pr_err("No free instance\n");
		mutex_unlock(&cpp_dev->mutex);
		return -ENODEV;
	}

	CPP_DBG("open %d %p\n", i, &fh->vfh);
	cpp_dev->cpp_open_cnt++;
	if (cpp_dev->cpp_open_cnt == 1) {
		rc = cpp_init_hardware(cpp_dev);
		if (rc < 0) {
			cpp_dev->cpp_open_cnt--;
			cpp_dev->cpp_subscribe_list[i].active = 0;
			cpp_dev->cpp_subscribe_list[i].vfh = NULL;
			mutex_unlock(&cpp_dev->mutex);
			return rc;
		}

		rc = cpp_init_mem(cpp_dev);
		if (rc < 0) {
			pr_err("Error: init memory fail\n");
			cpp_dev->cpp_open_cnt--;
			cpp_dev->cpp_subscribe_list[i].active = 0;
			cpp_dev->cpp_subscribe_list[i].vfh = NULL;
			mutex_unlock(&cpp_dev->mutex);
			return rc;
		}
		cpp_dev->state = CPP_STATE_IDLE;
	}
	mutex_unlock(&cpp_dev->mutex);
	return 0;
}

static int cpp_close_node(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
	uint32_t i;
	int rc = -1;
	struct cpp_device *cpp_dev = NULL;
	struct msm_device_queue *processing_q = NULL;
	struct msm_device_queue *eventData_q = NULL;

	if (!sd) {
		pr_err("Wrong input sd parameter");
		return -EINVAL;
	}
	cpp_dev =  v4l2_get_subdevdata(sd);

	if (!cpp_dev) {
		pr_err("failed: cpp_dev %p\n", cpp_dev);
		return -EINVAL;
	}

	mutex_lock(&cpp_dev->mutex);

	processing_q = &cpp_dev->processing_q;
	eventData_q = &cpp_dev->eventData_q;

	if (cpp_dev->cpp_open_cnt == 0) {
		mutex_unlock(&cpp_dev->mutex);
		return 0;
	}

	for (i = 0; i < MAX_ACTIVE_CPP_INSTANCE; i++) {
		if (cpp_dev->cpp_subscribe_list[i].active == 1) {
			cpp_dev->cpp_subscribe_list[i].active = 0;
			cpp_dev->cpp_subscribe_list[i].vfh = NULL;
			break;
		}
	}
	if (i == MAX_ACTIVE_CPP_INSTANCE) {
		pr_err("Invalid close\n");
		mutex_unlock(&cpp_dev->mutex);
		return -ENODEV;
	}

	cpp_dev->cpp_open_cnt--;
	if (cpp_dev->cpp_open_cnt == 0) {
		pr_debug("irq_status: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x4));
		pr_debug("DEBUG_SP: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x40));
		pr_debug("DEBUG_T: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x44));
		pr_debug("DEBUG_N: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x48));
		pr_debug("DEBUG_R: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x4C));
		pr_debug("DEBUG_OPPC: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x50));
		pr_debug("DEBUG_MO: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x54));
		pr_debug("DEBUG_TIMER0: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x60));
		pr_debug("DEBUG_TIMER1: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x64));
		pr_debug("DEBUG_GPI: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x70));
		pr_debug("DEBUG_GPO: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x74));
		pr_debug("DEBUG_T0: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x80));
		pr_debug("DEBUG_R0: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x84));
		pr_debug("DEBUG_T1: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x88));
		pr_debug("DEBUG_R1: 0x%x\n",
			msm_camera_io_r(cpp_dev->cpp_hw_base + 0x8C));
		msm_camera_io_w(0x0, cpp_dev->base + MSM_CPP_MICRO_CLKEN_CTL);
		msm_cpp_clear_timer(cpp_dev);
		cpp_release_hardware(cpp_dev);
		if (cpp_dev->iommu_state == CPP_IOMMU_STATE_ATTACHED) {
			cpp_dev->iommu_state = CPP_IOMMU_STATE_DETACHED;
			rc = cam_smmu_ops(cpp_dev->iommu_hdl, CAM_SMMU_DETACH);
			if (rc < 0)
				pr_err("Error: Detach fail in release\n");
		}
		cam_smmu_destroy_handle(cpp_dev->iommu_hdl);
		msm_cpp_empty_list(processing_q, list_frame);
		msm_cpp_empty_list(eventData_q, list_eventdata);
		cpp_dev->state = CPP_STATE_OFF;
	}

	mutex_unlock(&cpp_dev->mutex);
	return 0;
}

static const struct v4l2_subdev_internal_ops msm_cpp_internal_ops = {
	.open = cpp_open_node,
	.close = cpp_close_node,
};

static int msm_cpp_buffer_ops(struct cpp_device *cpp_dev,
	uint32_t buff_mgr_ops, struct msm_buf_mngr_info *buff_mgr_info)
{
	int rc = -EINVAL;

	rc = v4l2_subdev_call(cpp_dev->buf_mgr_subdev, core, ioctl,
		buff_mgr_ops, buff_mgr_info);
	if (rc < 0)
		pr_debug("%s: line %d rc = %d\n", __func__, __LINE__, rc);
	return rc;
}

static int msm_cpp_notify_frame_done(struct cpp_device *cpp_dev,
	uint8_t put_buf)
{
	struct v4l2_event v4l2_evt;
	struct msm_queue_cmd *frame_qcmd = NULL;
	struct msm_queue_cmd *event_qcmd = NULL;
	struct msm_cpp_frame_info_t *processed_frame = NULL;
	struct msm_device_queue *queue = &cpp_dev->processing_q;
	struct msm_buf_mngr_info buff_mgr_info;
	int rc = 0;

	frame_qcmd = msm_dequeue(queue, list_frame, POP_FRONT);
	if (frame_qcmd) {
		processed_frame = frame_qcmd->command;
		do_gettimeofday(&(processed_frame->out_time));
		kfree(frame_qcmd);
		event_qcmd = kzalloc(sizeof(struct msm_queue_cmd), GFP_ATOMIC);
		if (!event_qcmd) {
			pr_err("Insufficient memory\n");
			return -ENOMEM;
		}
		atomic_set(&event_qcmd->on_heap, 1);
		event_qcmd->command = processed_frame;
		CPP_DBG("fid %d\n", processed_frame->frame_id);
		msm_enqueue(&cpp_dev->eventData_q, &event_qcmd->list_eventdata);

		if ((processed_frame->partial_frame_indicator != 0) &&
			(processed_frame->last_payload == 0))
			goto NOTIFY_FRAME_DONE;

		if (!processed_frame->output_buffer_info[0].processed_divert &&
			!processed_frame->output_buffer_info[0].native_buff &&
			!processed_frame->we_disable) {

			int32_t iden = processed_frame->identity;

			SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(processed_frame,
				iden, processed_frame->duplicate_identity);

			memset(&buff_mgr_info, 0 ,
				sizeof(struct msm_buf_mngr_info));
			buff_mgr_info.session_id = ((iden >> 16) & 0xFFFF);
			buff_mgr_info.stream_id = (iden & 0xFFFF);
			buff_mgr_info.frame_id = processed_frame->frame_id;
			buff_mgr_info.timestamp = processed_frame->timestamp;
			if (processed_frame->batch_info.batch_mode ==
				BATCH_MODE_VIDEO ||
				(IS_BATCH_BUFFER_ON_PREVIEW(
				processed_frame))) {
				buff_mgr_info.index =
					processed_frame->batch_info.cont_idx;
			} else {
				buff_mgr_info.index = processed_frame->
					output_buffer_info[0].index;
			}
			if (put_buf) {
				rc = msm_cpp_buffer_ops(cpp_dev,
					VIDIOC_MSM_BUF_MNGR_PUT_BUF,
					&buff_mgr_info);
				if (rc < 0) {
					pr_err("error putting buffer\n");
					rc = -EINVAL;
				}
			} else {
				rc = msm_cpp_buffer_ops(cpp_dev,
					VIDIOC_MSM_BUF_MNGR_BUF_DONE,
					&buff_mgr_info);
				if (rc < 0) {
					pr_err("error putting buffer\n");
					rc = -EINVAL;
				}
			}
		}

		if (processed_frame->duplicate_output  &&
			!processed_frame->
				duplicate_buffer_info.processed_divert &&
			!processed_frame->we_disable) {
			int32_t iden = processed_frame->duplicate_identity;

			SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(processed_frame,
				iden, processed_frame->identity);

			memset(&buff_mgr_info, 0 ,
				sizeof(struct msm_buf_mngr_info));
			buff_mgr_info.session_id = ((iden >> 16) & 0xFFFF);
			buff_mgr_info.stream_id = (iden & 0xFFFF);
			buff_mgr_info.frame_id = processed_frame->frame_id;
			buff_mgr_info.timestamp = processed_frame->timestamp;
			buff_mgr_info.index =
				processed_frame->duplicate_buffer_info.index;
			if (put_buf) {
				rc = msm_cpp_buffer_ops(cpp_dev,
					VIDIOC_MSM_BUF_MNGR_PUT_BUF,
					&buff_mgr_info);
				if (rc < 0) {
					pr_err("error putting buffer\n");
					rc = -EINVAL;
				}
			} else {
				rc = msm_cpp_buffer_ops(cpp_dev,
					VIDIOC_MSM_BUF_MNGR_BUF_DONE,
					&buff_mgr_info);
				if (rc < 0) {
					pr_err("error putting buffer\n");
					rc = -EINVAL;
				}
			}
		}
NOTIFY_FRAME_DONE:
		v4l2_evt.id = processed_frame->inst_id;
		v4l2_evt.type = V4L2_EVENT_CPP_FRAME_DONE;
		v4l2_event_queue(cpp_dev->msm_sd.sd.devnode, &v4l2_evt);
	}
	return rc;
}

#if MSM_CPP_DUMP_FRM_CMD
static int msm_cpp_dump_frame_cmd(struct msm_cpp_frame_info_t *frame_info)
{
	int i, i1, i2;
	struct cpp_device *cpp_dev = cpp_timer.data.cpp_dev;
	CPP_DBG("-- start: cpp frame cmd for identity=0x%x, frame_id=%d --\n",
		frame_info->identity, frame_info->frame_id);

	CPP_DBG("msg[%03d] = 0x%08x\n", 0, 0x6);
	/* send top level and plane level */
	for (i = 0; i < cpp_dev->payload_params.stripe_base; i++)
		CPP_DBG("msg[%03d] = 0x%08x\n", i,
			frame_info->cpp_cmd_msg[i]);
	/* send stripes */
	i1 = cpp_dev->payload_params.stripe_base +
		cpp_dev->payload_params.stripe_size *
		frame_info->first_stripe_index;
	i2 = cpp_dev->payload_params.stripe_size *
		(frame_info->last_stripe_index -
		frame_info->first_stripe_index + 1);
	for (i = 0; i < i2; i++)
		CPP_DBG("msg[%03d] = 0x%08x\n", i+i1,
			frame_info->cpp_cmd_msg[i+i1]);
	/* send trailer */
	CPP_DBG("msg[%03d] = 0x%08x\n", i+i1, MSM_CPP_MSG_ID_TRAILER);
	CPP_DBG("--   end: cpp frame cmd for identity=0x%x, frame_id=%d --\n",
		frame_info->identity, frame_info->frame_id);
	return 0;
}
#else
static int msm_cpp_dump_frame_cmd(struct msm_cpp_frame_info_t *frame_info)
{
	return 0;
}
#endif

static void msm_cpp_flush_queue_and_release_buffer(struct cpp_device *cpp_dev,
	int queue_len) {
	uint32_t i;

	while (queue_len) {
		msm_cpp_notify_frame_done(cpp_dev, 1);
		queue_len--;
	}
	atomic_set(&cpp_timer.used, 0);
	for (i = 0; i < MAX_CPP_PROCESSING_FRAME; i++)
		cpp_timer.data.processed_frame[i] = NULL;
}

static void msm_cpp_set_micro_irq_mask(struct cpp_device *cpp_dev,
	uint8_t enable, uint32_t irq_mask)
{
	msm_camera_io_w_mb(irq_mask, cpp_dev->base +
		MSM_CPP_MICRO_IRQGEN_MASK);
	msm_camera_io_w_mb(0xFFFF, cpp_dev->base +
		MSM_CPP_MICRO_IRQGEN_CLR);
	if (enable)
		enable_irq(cpp_dev->irq->start);
}

static void msm_cpp_do_timeout_work(struct work_struct *work)
{
	uint32_t j = 0, i = 0, i1 = 0, i2 = 0;
	int32_t queue_len = 0, rc = 0, fifo_counter = 0;
	struct msm_device_queue *queue = NULL;
	struct msm_cpp_frame_info_t *processed_frame[MAX_CPP_PROCESSING_FRAME];
	struct cpp_device *cpp_dev = cpp_timer.data.cpp_dev;

	pr_warn("cpp_timer_callback called. (jiffies=%lu)\n",
		jiffies);
	mutex_lock(&cpp_dev->mutex);

	if (!work || (cpp_timer.data.cpp_dev->state != CPP_STATE_ACTIVE)) {
		pr_err("Invalid work:%p or state:%d\n", work,
			cpp_timer.data.cpp_dev->state);
		/* Do not flush queue here as it is not a fatal error */
		goto end;
	}
	if (!atomic_read(&cpp_timer.used)) {
		pr_warn("Delayed trigger, IRQ serviced\n");
		/* Do not flush queue here as it is not a fatal error */
		goto end;
	}

	msm_camera_enable_irq(cpp_timer.data.cpp_dev->irq, false);
	/* make sure all the pending queued entries are scheduled */
	tasklet_kill(&cpp_dev->cpp_tasklet);

	queue = &cpp_timer.data.cpp_dev->processing_q;
	queue_len = queue->len;
	if (!queue_len) {
		pr_err("%s:%d: irq serviced after timeout.Ignore timeout\n",
			__func__, __LINE__);
		msm_cpp_set_micro_irq_mask(cpp_dev, 1, 0x8);
		goto end;
	}

	pr_debug("Reloading firmware %d\n", queue_len);
	rc = cpp_load_fw(cpp_timer.data.cpp_dev,
		cpp_timer.data.cpp_dev->fw_name_bin);
	if (rc) {
		pr_warn("Firmware loading failed\n");
		goto error;
	} else {
		pr_debug("Firmware loading done\n");
	}

	if (!atomic_read(&cpp_timer.used)) {
		pr_warn("Delayed trigger, IRQ serviced\n");
		/* Do not flush queue here as it is not a fatal error */
		msm_cpp_set_micro_irq_mask(cpp_dev, 1, 0x8);
		cpp_dev->timeout_trial_cnt = 0;
		goto end;
	}

	if (cpp_dev->timeout_trial_cnt >=
		cpp_dev->max_timeout_trial_cnt) {
		pr_warn("Max trial reached\n");
		msm_cpp_flush_queue_and_release_buffer(cpp_dev, queue_len);
		msm_cpp_set_micro_irq_mask(cpp_dev, 1, 0x8);
		goto end;
	}

	atomic_set(&cpp_timer.used, 1);
	pr_warn("Starting timer to fire in %d ms. (jiffies=%lu)\n",
		CPP_CMD_TIMEOUT_MS, jiffies);
	mod_timer(&cpp_timer.cpp_timer,
		jiffies + msecs_to_jiffies(CPP_CMD_TIMEOUT_MS));

	msm_cpp_set_micro_irq_mask(cpp_dev, 1, 0x8);

	for (i = 0; i < MAX_CPP_PROCESSING_FRAME; i++)
		processed_frame[i] = cpp_timer.data.processed_frame[i];

	for (i = 0; i < queue_len; i++) {
		pr_warn("Rescheduling for identity=0x%x, frame_id=%03d\n",
			processed_frame[i]->identity,
			processed_frame[i]->frame_id);

		rc = msm_cpp_poll_rx_empty(cpp_dev->base);
		if (rc) {
			pr_err("%s:%d: Reschedule payload failed %d\n",
				__func__, __LINE__, rc);
			goto error;
		}
		msm_cpp_write(0x6, cpp_dev->base);
		fifo_counter++;
		/* send top level and plane level */
		for (j = 0; j < cpp_dev->payload_params.stripe_base; j++,
			fifo_counter++) {
			if (fifo_counter % MSM_CPP_RX_FIFO_LEVEL == 0) {
				rc = msm_cpp_poll_rx_empty(cpp_dev->base);
				if (rc) {
					pr_err("%s:%d] poll failed %d rc %d",
						__func__, __LINE__, j, rc);
					goto error;
				}
				fifo_counter = 0;
			}
			msm_cpp_write(processed_frame[i]->cpp_cmd_msg[j],
				cpp_dev->base);
		}
		if (rc) {
			pr_err("%s:%d: Rescheduling plane info failed %d\n",
				__func__, __LINE__, rc);
			goto error;
		}
		/* send stripes */
		i1 = cpp_dev->payload_params.stripe_base +
			cpp_dev->payload_params.stripe_size *
			processed_frame[i]->first_stripe_index;
		i2 = cpp_dev->payload_params.stripe_size *
			(processed_frame[i]->last_stripe_index -
			processed_frame[i]->first_stripe_index + 1);
		for (j = 0; j < i2; j++, fifo_counter++) {
			if (fifo_counter % MSM_CPP_RX_FIFO_LEVEL == 0) {
				rc = msm_cpp_poll_rx_empty(cpp_dev->base);
				if (rc) {
					pr_err("%s:%d] poll failed %d rc %d",
						__func__, __LINE__, j, rc);
					break;
				}
				fifo_counter = 0;
			}
			msm_cpp_write(processed_frame[i]->cpp_cmd_msg[j+i1],
				cpp_dev->base);
		}
		if (rc) {
			pr_err("%s:%d] Rescheduling stripe info failed %d\n",
				__func__, __LINE__, rc);
			goto error;
		}
		/* send trailer */

		if (fifo_counter % MSM_CPP_RX_FIFO_LEVEL == 0) {
			rc = msm_cpp_poll_rx_empty(cpp_dev->base);
			if (rc) {
				pr_err("%s:%d] Reschedule trailer failed %d\n",
					__func__, __LINE__, rc);
				goto error;
			}
			fifo_counter = 0;
		}
		msm_cpp_write(0xabcdefaa, cpp_dev->base);
		pr_debug("After frame:%d write\n", i+1);
	}

	cpp_timer.data.cpp_dev->timeout_trial_cnt++;

end:
	mutex_unlock(&cpp_dev->mutex);
	pr_debug("%s:%d] exit\n", __func__, __LINE__);
	return;
error:
	cpp_dev->state = CPP_STATE_OFF;
	/* flush the queue */
	msm_cpp_flush_queue_and_release_buffer(cpp_dev,
		queue_len);
	msm_cpp_set_micro_irq_mask(cpp_dev, 0, 0x0);
	cpp_dev->timeout_trial_cnt = 0;
	mutex_unlock(&cpp_dev->mutex);
	pr_debug("%s:%d] exit\n", __func__, __LINE__);
	return;
}

void cpp_timer_callback(unsigned long data)
{
	struct msm_cpp_work_t *work =
		cpp_timer.data.cpp_dev->work;
	queue_work(cpp_timer.data.cpp_dev->timer_wq,
		(struct work_struct *)work);
}

static int msm_cpp_send_frame_to_hardware(struct cpp_device *cpp_dev,
	struct msm_queue_cmd *frame_qcmd)
{
	unsigned long flags;
	uint32_t i, i1, i2;
	int32_t rc = -EAGAIN;
	struct msm_cpp_frame_info_t *process_frame;
	struct msm_queue_cmd *qcmd = NULL;
	uint32_t queue_len = 0, fifo_counter = 0;

	if (cpp_dev->processing_q.len < MAX_CPP_PROCESSING_FRAME) {
		process_frame = frame_qcmd->command;
		msm_cpp_dump_frame_cmd(process_frame);
		spin_lock_irqsave(&cpp_timer.data.processed_frame_lock, flags);
		msm_enqueue(&cpp_dev->processing_q,
			&frame_qcmd->list_frame);
		cpp_timer.data.processed_frame[cpp_dev->processing_q.len - 1] =
			process_frame;
		queue_len = cpp_dev->processing_q.len;
		spin_unlock_irqrestore(&cpp_timer.data.processed_frame_lock,
			flags);
		atomic_set(&cpp_timer.used, 1);

		CPP_DBG("Starting timer to fire in %d ms. (jiffies=%lu)\n",
			CPP_CMD_TIMEOUT_MS, jiffies);
		if (mod_timer(&cpp_timer.cpp_timer,
			(jiffies + msecs_to_jiffies(CPP_CMD_TIMEOUT_MS))) != 0)
			CPP_DBG("Timer has not expired yet\n");

		rc = msm_cpp_poll_rx_empty(cpp_dev->base);
		if (rc) {
			pr_err("%s:%d: Scheduling payload failed %d",
				__func__, __LINE__, rc);
			goto dequeue_frame;
		}
		msm_cpp_write(0x6, cpp_dev->base);
		fifo_counter++;
		/* send top level and plane level */
		for (i = 0; i < cpp_dev->payload_params.stripe_base; i++,
			fifo_counter++) {
			if ((fifo_counter % MSM_CPP_RX_FIFO_LEVEL) == 0) {
				rc = msm_cpp_poll_rx_empty(cpp_dev->base);
				if (rc)
					break;
				fifo_counter = 0;
			}
			msm_cpp_write(process_frame->cpp_cmd_msg[i],
				cpp_dev->base);
		}
		if (rc) {
			pr_err("%s:%d: Scheduling plane info failed %d\n",
				__func__, __LINE__, rc);
			goto dequeue_frame;
		}
		/* send stripes */
		i1 = cpp_dev->payload_params.stripe_base +
			cpp_dev->payload_params.stripe_size *
			process_frame->first_stripe_index;
		i2 = cpp_dev->payload_params.stripe_size *
			(process_frame->last_stripe_index -
			process_frame->first_stripe_index + 1);
		for (i = 0; i < i2; i++, fifo_counter++) {
			if ((fifo_counter % MSM_CPP_RX_FIFO_LEVEL) == 0) {
				rc = msm_cpp_poll_rx_empty(cpp_dev->base);
				if (rc)
					break;
				fifo_counter = 0;
			}
			msm_cpp_write(process_frame->cpp_cmd_msg[i+i1],
				cpp_dev->base);
		}
		if (rc) {
			pr_err("%s:%d: Scheduling stripe info failed %d\n",
				__func__, __LINE__, rc);
			goto dequeue_frame;
		}
		/* send trailer */
		if ((fifo_counter % MSM_CPP_RX_FIFO_LEVEL) == 0) {
			rc = msm_cpp_poll_rx_empty(cpp_dev->base);
			if (rc) {
				pr_err("%s: Scheduling trailer failed %d\n",
				__func__, rc);
				goto dequeue_frame;
			}
			fifo_counter = 0;
		}
		msm_cpp_write(MSM_CPP_MSG_ID_TRAILER, cpp_dev->base);

		do_gettimeofday(&(process_frame->in_time));
		rc = 0;
	} else {
		pr_err("process queue full. drop frame\n");
		goto end;
	}

dequeue_frame:
	if (rc < 0) {
		qcmd = msm_dequeue(&cpp_dev->processing_q, list_frame,
			POP_BACK);
		if (!qcmd)
			pr_warn("%s:%d: no queue cmd\n", __func__, __LINE__);
		spin_lock_irqsave(&cpp_timer.data.processed_frame_lock,
			flags);
		queue_len = cpp_dev->processing_q.len;
		spin_unlock_irqrestore(
			&cpp_timer.data.processed_frame_lock, flags);
		if (queue_len == 0) {
			atomic_set(&cpp_timer.used, 0);
			del_timer(&cpp_timer.cpp_timer);
		}
	}
end:
	return rc;
}

static int msm_cpp_send_command_to_hardware(struct cpp_device *cpp_dev,
	uint32_t *cmd_msg, uint32_t payload_size)
{
	uint32_t i;
	int rc = 0;

	rc = msm_cpp_poll_rx_empty(cpp_dev->base);
	if (rc) {
		pr_err("%s:%d] poll rx empty failed %d",
			__func__, __LINE__, rc);
		goto end;
	}

	for (i = 0; i < payload_size; i++) {
		msm_cpp_write(cmd_msg[i], cpp_dev->base);
		if (i % MSM_CPP_RX_FIFO_LEVEL == 0) {
			rc = msm_cpp_poll_rx_empty(cpp_dev->base);
			if (rc) {
				pr_err("%s:%d] poll rx empty failed %d",
					__func__, __LINE__, rc);
				goto end;
			}
		}
	}
end:
	return rc;
}

static int msm_cpp_flush_frames(struct cpp_device *cpp_dev)
{
	return 0;
}

static struct msm_cpp_frame_info_t *msm_cpp_get_frame(
	struct msm_camera_v4l2_ioctl_t *ioctl_ptr)
{
	uint32_t *cpp_frame_msg;
	struct msm_cpp_frame_info_t *new_frame = NULL;
	int32_t rc = 0;

	new_frame = kzalloc(sizeof(struct msm_cpp_frame_info_t), GFP_KERNEL);

	if (!new_frame) {
		pr_err("Insufficient memory\n");
		rc = -ENOMEM;
		goto no_mem_err;
	}

	rc = (copy_from_user(new_frame, (void __user *)ioctl_ptr->ioctl_ptr,
			sizeof(struct msm_cpp_frame_info_t)) ? -EFAULT : 0);
	if (rc) {
		ERR_COPY_FROM_USER();
		goto frame_err;
	}

	if ((new_frame->msg_len == 0) ||
		(new_frame->msg_len > MSM_CPP_MAX_FRAME_LENGTH)) {
		pr_err("%s:%d: Invalid frame len:%d\n", __func__,
			__LINE__, new_frame->msg_len);
		goto frame_err;
	}

	cpp_frame_msg = kzalloc(sizeof(uint32_t) * new_frame->msg_len,
		GFP_KERNEL);
	if (!cpp_frame_msg) {
		pr_err("Insufficient memory\n");
		goto frame_err;
	}

	rc = (copy_from_user(cpp_frame_msg,
		(void __user *)new_frame->cpp_cmd_msg,
		sizeof(uint32_t) * new_frame->msg_len) ? -EFAULT : 0);
	if (rc) {
		ERR_COPY_FROM_USER();
		goto frame_msg_err;
	}
	new_frame->cpp_cmd_msg = cpp_frame_msg;
	return new_frame;

frame_msg_err:
	kfree(cpp_frame_msg);
frame_err:
	kfree(new_frame);
no_mem_err:
	return NULL;
}

static int msm_cpp_check_buf_type(struct msm_buf_mngr_info *buff_mgr_info,
	struct msm_cpp_frame_info_t *new_frame)
{
	int32_t num_output_bufs = 0;
	uint32_t i = 0;
	if (buff_mgr_info->type == MSM_CAMERA_BUF_MNGR_BUF_USER) {
		new_frame->batch_info.cont_idx =
			buff_mgr_info->index;
		num_output_bufs = buff_mgr_info->user_buf.buf_cnt;
		if (buff_mgr_info->user_buf.buf_cnt <
			new_frame->batch_info.batch_size) {
			/* Less bufs than Input buffer */
			num_output_bufs = buff_mgr_info->user_buf.buf_cnt;
		} else {
			/* More or equal bufs as Input buffer */
			num_output_bufs = new_frame->batch_info.batch_size;
		}
		for (i = 0; i < num_output_bufs; i++) {
			new_frame->output_buffer_info[i].index =
				buff_mgr_info->user_buf.buf_idx[i];
		}
	} else {
		/* For non-group case use first buf slot */
		new_frame->output_buffer_info[0].index = buff_mgr_info->index;
		num_output_bufs = 1;
	}

	return num_output_bufs;
}

static void msm_cpp_update_frame_msg_phy_address(struct cpp_device *cpp_dev,
	struct msm_cpp_frame_info_t *new_frame, unsigned long in_phyaddr,
	unsigned long out_phyaddr0, unsigned long out_phyaddr1,
	unsigned long tnr_scratch_buffer0, unsigned long tnr_scratch_buffer1)
{
	int32_t stripe_base, plane_base;
	uint32_t rd_pntr_off, wr_0_pntr_off, wr_1_pntr_off,
		wr_2_pntr_off, wr_3_pntr_off;
	uint32_t wr_0_meta_data_wr_pntr_off, wr_1_meta_data_wr_pntr_off,
		wr_2_meta_data_wr_pntr_off, wr_3_meta_data_wr_pntr_off;
	uint32_t rd_ref_pntr_off, wr_ref_pntr_off;
	uint32_t stripe_size, plane_size;
	uint32_t fe_mmu_pf_ptr_off, ref_fe_mmu_pf_ptr_off, we_mmu_pf_ptr_off,
		dup_we_mmu_pf_ptr_off, ref_we_mmu_pf_ptr_off;
	uint8_t tnr_enabled, ubwc_enabled, mmu_pf_en, cds_en;
	int32_t i = 0;
	uint32_t *cpp_frame_msg;

	cpp_frame_msg = new_frame->cpp_cmd_msg;

	/* Update stripe/plane size and base offsets */
	stripe_base = cpp_dev->payload_params.stripe_base;
	stripe_size = cpp_dev->payload_params.stripe_size;
	plane_base = cpp_dev->payload_params.plane_base;
	plane_size = cpp_dev->payload_params.plane_size;

	/* Fetch engine Offset */
	rd_pntr_off = cpp_dev->payload_params.rd_pntr_off;
	/* Write engine offsets */
	wr_0_pntr_off = cpp_dev->payload_params.wr_0_pntr_off;
	wr_1_pntr_off = wr_0_pntr_off + 1;
	wr_2_pntr_off = wr_1_pntr_off + 1;
	wr_3_pntr_off = wr_2_pntr_off + 1;
	/* Reference engine offsets */
	rd_ref_pntr_off = cpp_dev->payload_params.rd_ref_pntr_off;
	wr_ref_pntr_off = cpp_dev->payload_params.wr_ref_pntr_off;
	/* Meta data offsets */
	wr_0_meta_data_wr_pntr_off =
		cpp_dev->payload_params.wr_0_meta_data_wr_pntr_off;
	wr_1_meta_data_wr_pntr_off = (wr_0_meta_data_wr_pntr_off + 1);
	wr_2_meta_data_wr_pntr_off = (wr_1_meta_data_wr_pntr_off + 1);
	wr_3_meta_data_wr_pntr_off = (wr_2_meta_data_wr_pntr_off + 1);
	/* MMU PF offsets */
	fe_mmu_pf_ptr_off = cpp_dev->payload_params.fe_mmu_pf_ptr_off;
	ref_fe_mmu_pf_ptr_off = cpp_dev->payload_params.ref_fe_mmu_pf_ptr_off;
	we_mmu_pf_ptr_off = cpp_dev->payload_params.we_mmu_pf_ptr_off;
	dup_we_mmu_pf_ptr_off = cpp_dev->payload_params.dup_we_mmu_pf_ptr_off;
	ref_we_mmu_pf_ptr_off = cpp_dev->payload_params.ref_we_mmu_pf_ptr_off;

	pr_debug("%s: feature_mask 0x%x\n", __func__, new_frame->feature_mask);

	/* Update individual module status from feature mask */
	tnr_enabled = ((new_frame->feature_mask & TNR_MASK) >> 2);
	ubwc_enabled = ((new_frame->feature_mask & UBWC_MASK) >> 5);
	cds_en = ((new_frame->feature_mask & CDS_MASK) >> 6);
	mmu_pf_en = ((new_frame->feature_mask & MMU_PF_MASK) >> 7);

	/*
	 * Update the stripe based addresses for fetch/write/reference engines.
	 * Update meta data offset for ubwc.
	 * Update ref engine address for cds / tnr.
	 */
	for (i = 0; i < new_frame->num_strips; i++) {
		cpp_frame_msg[stripe_base + rd_pntr_off + i * stripe_size] +=
			(uint32_t) in_phyaddr;
		cpp_frame_msg[stripe_base + wr_0_pntr_off + i * stripe_size] +=
			(uint32_t) out_phyaddr0;
		cpp_frame_msg[stripe_base + wr_1_pntr_off + i * stripe_size] +=
			(uint32_t) out_phyaddr1;
		cpp_frame_msg[stripe_base + wr_2_pntr_off + i * stripe_size] +=
			(uint32_t) out_phyaddr0;
		cpp_frame_msg[stripe_base + wr_3_pntr_off + i * stripe_size] +=
			(uint32_t) out_phyaddr1;
		if (tnr_enabled) {
			cpp_frame_msg[stripe_base + rd_ref_pntr_off +
				i * stripe_size] +=
				(uint32_t)tnr_scratch_buffer0;
			cpp_frame_msg[stripe_base + wr_ref_pntr_off +
				i * stripe_size] +=
				(uint32_t)tnr_scratch_buffer1;
		} else if (cds_en) {
			cpp_frame_msg[stripe_base + rd_ref_pntr_off +
				i * stripe_size] +=
				(uint32_t)in_phyaddr;
		}
		if (ubwc_enabled) {
			cpp_frame_msg[stripe_base + wr_0_meta_data_wr_pntr_off +
				i * stripe_size] += (uint32_t) out_phyaddr0;
			cpp_frame_msg[stripe_base + wr_1_meta_data_wr_pntr_off +
				i * stripe_size] += (uint32_t) out_phyaddr1;
			cpp_frame_msg[stripe_base + wr_2_meta_data_wr_pntr_off +
				i * stripe_size] += (uint32_t) out_phyaddr0;
			cpp_frame_msg[stripe_base + wr_3_meta_data_wr_pntr_off +
				i * stripe_size] += (uint32_t) out_phyaddr1;
		}
	}

	if (!mmu_pf_en)
		goto exit;

	/* Update mmu prefetch related plane specific address */
	for (i = 0; i < PAYLOAD_NUM_PLANES; i++) {
		cpp_frame_msg[plane_base + fe_mmu_pf_ptr_off +
			i * plane_size] += (uint32_t)in_phyaddr;
		cpp_frame_msg[plane_base + fe_mmu_pf_ptr_off +
			i * plane_size + 1] += (uint32_t)in_phyaddr;
		cpp_frame_msg[plane_base + ref_fe_mmu_pf_ptr_off +
			i * plane_size] += (uint32_t)tnr_scratch_buffer0;
		cpp_frame_msg[plane_base + ref_fe_mmu_pf_ptr_off +
			i * plane_size + 1] += (uint32_t)tnr_scratch_buffer0;
		cpp_frame_msg[plane_base + we_mmu_pf_ptr_off +
			i * plane_size] += (uint32_t)out_phyaddr0;
		cpp_frame_msg[plane_base + we_mmu_pf_ptr_off +
			i * plane_size + 1] += (uint32_t)out_phyaddr0;
		cpp_frame_msg[plane_base + dup_we_mmu_pf_ptr_off +
			i * plane_size] += (uint32_t)out_phyaddr1;
		cpp_frame_msg[plane_base + dup_we_mmu_pf_ptr_off +
			i * plane_size + 1] += (uint32_t)out_phyaddr1;
		cpp_frame_msg[plane_base + ref_we_mmu_pf_ptr_off +
			i * plane_size] += (uint32_t)tnr_scratch_buffer1;
		cpp_frame_msg[plane_base + ref_we_mmu_pf_ptr_off +
			i * plane_size + 1] += (uint32_t)tnr_scratch_buffer1;
	}
exit:
	return;
}

static int32_t msm_cpp_set_group_buffer_duplicate(struct cpp_device *cpp_dev,
	struct msm_cpp_frame_info_t *new_frame, unsigned long out_phyaddr,
	uint32_t num_output_bufs)
{

	uint32_t *set_group_buffer_w_duplication = NULL;
	uint32_t *ptr;
	unsigned long out_phyaddr0, out_phyaddr1, distance;
	int32_t rc = 0;
	uint32_t set_group_buffer_len, set_group_buffer_len_bytes,
		dup_frame_off, ubwc_enabled, j, i = 0;

	do {
		int iden = new_frame->identity;

		set_group_buffer_len =
			cpp_dev->payload_params.set_group_buffer_len;
		if (!set_group_buffer_len) {
			pr_err("%s: invalid set group buffer cmd len %d\n",
				 __func__, set_group_buffer_len);
			rc = -EINVAL;
			break;
		}

		/*
		 * Length of  MSM_CPP_CMD_GROUP_BUFFER_DUP command +
		 * 4 byte for header + 4 byte for the length field +
		 * 4 byte for the trailer + 4 byte for
		 * MSM_CPP_CMD_GROUP_BUFFER_DUP prefix before the payload
		 */
		set_group_buffer_len += 4;
		set_group_buffer_len_bytes = set_group_buffer_len *
			sizeof(uint32_t);
		set_group_buffer_w_duplication =
			kzalloc(set_group_buffer_len_bytes, GFP_KERNEL);
		if (!set_group_buffer_w_duplication) {
			pr_err("%s: set group buffer data alloc failed\n",
				__func__);
			rc = -ENOMEM;
			break;
		}

		memset(set_group_buffer_w_duplication, 0x0,
			set_group_buffer_len_bytes);
		dup_frame_off =
			cpp_dev->payload_params.dup_frame_indicator_off;
		/* Add a factor of 1 as command is prefixed to the payload. */
		dup_frame_off += 1;
		ubwc_enabled = ((new_frame->feature_mask & UBWC_MASK) >> 5);
		ptr = set_group_buffer_w_duplication;
		/*create and send Set Group Buffer with Duplicate command*/
		*ptr++ = MSM_CPP_CMD_GROUP_BUFFER_DUP;
		*ptr++ = MSM_CPP_MSG_ID_CMD;
		/*
		 * This field is the value read from dt and stands for length of
		 * actual data in payload
		 */
		*ptr++ = cpp_dev->payload_params.set_group_buffer_len;
		*ptr++ = MSM_CPP_CMD_GROUP_BUFFER_DUP;
		*ptr++ = 0;
		out_phyaddr0 = out_phyaddr;

		SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(new_frame,
				iden, new_frame->duplicate_identity);

		for (i = 1; i < num_output_bufs; i++) {
			out_phyaddr1 = msm_cpp_fetch_buffer_info(cpp_dev,
				&new_frame->output_buffer_info[i],
				((iden >> 16) & 0xFFFF),
				(iden & 0xFFFF),
				&new_frame->output_buffer_info[i].fd);
			if (!out_phyaddr1) {
				pr_err("%s: error getting o/p phy addr\n",
					__func__);
				rc = -EINVAL;
				break;
			}
			distance = out_phyaddr1 - out_phyaddr0;
			out_phyaddr0 = out_phyaddr1;
			for (j = 0; j < PAYLOAD_NUM_PLANES; j++)
				*ptr++ = distance;

			for (j = 0; j < PAYLOAD_NUM_PLANES; j++)
				*ptr++ = ubwc_enabled ? distance : 0;
		}
		if (rc)
			break;

		if (new_frame->duplicate_output)
			set_group_buffer_w_duplication[dup_frame_off] =
				1 << new_frame->batch_info.pick_preview_idx;
		else
			set_group_buffer_w_duplication[dup_frame_off] = 0;

		/*
		 * Index for cpp message id trailer is length of payload for
		 * set group buffer minus 1
		 */
		set_group_buffer_w_duplication[set_group_buffer_len - 1] =
			MSM_CPP_MSG_ID_TRAILER;
		rc = msm_cpp_send_command_to_hardware(cpp_dev,
			set_group_buffer_w_duplication, set_group_buffer_len);
		if (rc < 0) {
			pr_err("%s: Send Command Error rc %d\n", __func__, rc);
			break;
		}

	} while (0);

	kfree(set_group_buffer_w_duplication);
	return rc;
}

static int32_t msm_cpp_set_group_buffer(struct cpp_device *cpp_dev,
	struct msm_cpp_frame_info_t *new_frame, unsigned long out_phyaddr,
	uint32_t num_output_bufs)
{
	uint32_t set_group_buffer_len;
	uint32_t *set_group_buffer = NULL;
	uint32_t *ptr;
	unsigned long out_phyaddr0, out_phyaddr1, distance;
	int32_t rc = 0;
	uint32_t set_group_buffer_len_bytes, i = 0;
	bool batching_valid = false;

	if ((IS_BATCH_BUFFER_ON_PREVIEW(new_frame)) ||
		new_frame->batch_info.batch_mode == BATCH_MODE_VIDEO)
		batching_valid = true;

	if (!batching_valid) {
		pr_debug("%s: batch mode %d, batching valid %d\n",
			__func__, new_frame->batch_info.batch_mode,
			batching_valid);
		return rc;
	}

	if (new_frame->batch_info.batch_size <= 1) {
		pr_debug("%s: batch size is invalid %d\n", __func__,
			new_frame->batch_info.batch_size);
		return rc;
	}

	if ((new_frame->feature_mask & BATCH_DUP_MASK) >> 8) {
		return msm_cpp_set_group_buffer_duplicate(cpp_dev, new_frame,
		out_phyaddr, num_output_bufs);
	}

	if (new_frame->duplicate_output) {
		pr_err("cannot support duplication enable\n");
		rc = -EINVAL;
		goto exit;
	}

	set_group_buffer_len =
		2 + 3 * (num_output_bufs - 1);
	/*
	 * Length of  MSM_CPP_CMD_GROUP_BUFFER command +
	 * 4 byte for header + 4 byte for the length field +
	 * 4 byte for the trailer + 4 byte for
	 * MSM_CPP_CMD_GROUP_BUFFER prefix before the payload
	 */
	set_group_buffer_len += 4;
	set_group_buffer_len_bytes = set_group_buffer_len *
		sizeof(uint32_t);
	set_group_buffer =
		kzalloc(set_group_buffer_len_bytes, GFP_KERNEL);
	if (!set_group_buffer) {
		pr_err("%s: set group buffer data alloc failed\n",
			__func__);
		rc = -ENOMEM;
		goto exit;
	}

	memset(set_group_buffer, 0x0,
		set_group_buffer_len_bytes);
	ptr = set_group_buffer;
	/*Create and send Set Group Buffer*/
	*ptr++ = MSM_CPP_CMD_GROUP_BUFFER;
	*ptr++ = MSM_CPP_MSG_ID_CMD;
	/*
	 * This field is the value read from dt and stands
	 * for length of actual data in payload
	 */
	*ptr++ = set_group_buffer_len - 4;
	*ptr++ = MSM_CPP_CMD_GROUP_BUFFER;
	*ptr++ = 0;
	out_phyaddr0 = out_phyaddr;

	for (i = 1; i < num_output_bufs; i++) {
		out_phyaddr1 =
			msm_cpp_fetch_buffer_info(cpp_dev,
			&new_frame->output_buffer_info[i],
			((new_frame->identity >> 16) & 0xFFFF),
			(new_frame->identity & 0xFFFF),
			&new_frame->output_buffer_info[i].fd);
		if (!out_phyaddr1) {
			pr_err("%s: error getting o/p phy addr\n",
				__func__);
			rc = -EINVAL;
			goto free_and_exit;
		}
		distance = out_phyaddr1 - out_phyaddr0;
		out_phyaddr0 = out_phyaddr1;
		*ptr++ = distance;
		*ptr++ = distance;
		*ptr++ = distance;
	}
	if (rc)
		goto free_and_exit;

	/*
	 * Index for cpp message id trailer is length of
	 * payload for set group buffer minus 1
	 */
	set_group_buffer[set_group_buffer_len - 1] =
		MSM_CPP_MSG_ID_TRAILER;
	rc = msm_cpp_send_command_to_hardware(cpp_dev,
		set_group_buffer, set_group_buffer_len);
	if (rc < 0)
		pr_err("Send Command Error rc %d\n", rc);

free_and_exit:
	kfree(set_group_buffer);
exit:
	return rc;
}

static int msm_cpp_cfg_frame(struct cpp_device *cpp_dev,
	struct msm_cpp_frame_info_t *new_frame)
{
	int32_t rc = 0;
	struct msm_queue_cmd *frame_qcmd = NULL;
	uint32_t *cpp_frame_msg;
	unsigned long in_phyaddr, out_phyaddr0 = (unsigned long)NULL;
	unsigned long out_phyaddr1;
	unsigned long tnr_scratch_buffer0, tnr_scratch_buffer1;
	uint16_t num_stripes = 0;
	struct msm_buf_mngr_info buff_mgr_info, dup_buff_mgr_info;
	int32_t in_fd;
	int32_t num_output_bufs = 1;
	int32_t stripe_base = 0;
	uint32_t stripe_size;
	uint8_t tnr_enabled;
	enum msm_camera_buf_mngr_buf_type buf_type =
		MSM_CAMERA_BUF_MNGR_BUF_PLANAR;

	stripe_base = cpp_dev->payload_params.stripe_base;
	stripe_size = cpp_dev->payload_params.stripe_size;

	if (!new_frame) {
		pr_err("%s: Frame is Null\n", __func__);
		return -EINVAL;
	}

	if (cpp_dev->state == CPP_STATE_OFF) {
		pr_err("%s: cpp state is off, return fatal error\n", __func__);
		return -EINVAL;
	}

	cpp_frame_msg = new_frame->cpp_cmd_msg;

	if (cpp_frame_msg == NULL ||
		(new_frame->msg_len < MSM_CPP_MIN_FRAME_LENGTH)) {
		pr_err("Length is not correct or frame message is missing\n");
		return -EINVAL;
	}

	if (!new_frame->partial_frame_indicator) {
		if (cpp_frame_msg[new_frame->msg_len - 1] !=
			MSM_CPP_MSG_ID_TRAILER) {
			pr_err("Invalid frame message\n");
			return -EINVAL;
		}

		if ((stripe_base + new_frame->num_strips * stripe_size + 1) !=
			new_frame->msg_len) {
			pr_err("Invalid frame message,len=%d,expected=%d\n",
				new_frame->msg_len,
				(stripe_base +
				new_frame->num_strips * stripe_size + 1));
			return -EINVAL;
		}
	}

	if (cpp_dev->iommu_state != CPP_IOMMU_STATE_ATTACHED) {
		pr_err("IOMMU is not attached\n");
		return -EAGAIN;
	}

	in_phyaddr = msm_cpp_fetch_buffer_info(cpp_dev,
		&new_frame->input_buffer_info,
		((new_frame->input_buffer_info.identity >> 16) & 0xFFFF),
		(new_frame->input_buffer_info.identity & 0xFFFF), &in_fd);
	if (!in_phyaddr) {
		pr_err("%s: error gettting input physical address\n", __func__);
		rc = -EINVAL;
		goto frame_msg_err;
	}

	if (new_frame->we_disable == 0) {
		int32_t iden = new_frame->identity;
		if ((new_frame->output_buffer_info[0].native_buff == 0) &&
			(new_frame->first_payload)) {
			memset(&buff_mgr_info, 0,
				sizeof(struct msm_buf_mngr_info));
			if ((new_frame->batch_info.batch_mode ==
				BATCH_MODE_VIDEO) ||
				(IS_BATCH_BUFFER_ON_PREVIEW(new_frame)))
				buf_type = MSM_CAMERA_BUF_MNGR_BUF_USER;

			SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(new_frame,
				iden, new_frame->duplicate_identity);

			buff_mgr_info.session_id = ((iden >> 16) & 0xFFFF);
			buff_mgr_info.stream_id = (iden & 0xFFFF);
			buff_mgr_info.type = buf_type;
			rc = msm_cpp_buffer_ops(cpp_dev,
				VIDIOC_MSM_BUF_MNGR_GET_BUF,
				&buff_mgr_info);
			if (rc < 0) {
				rc = -EAGAIN;
				pr_debug("%s: error getting buffer rc:%d\n",
					__func__, rc);
				goto frame_msg_err;
			}
			num_output_bufs =
				msm_cpp_check_buf_type(&buff_mgr_info,
					new_frame);
			if (!num_output_bufs) {
				pr_err("%s: error getting buffer %d\n",
					__func__, num_output_bufs);
				rc = -EINVAL;
				goto phyaddr_err;
			}
		}

		out_phyaddr0 = msm_cpp_fetch_buffer_info(cpp_dev,
			&new_frame->output_buffer_info[0],
			((iden >> 16) & 0xFFFF),
			(iden & 0xFFFF),
			&new_frame->output_buffer_info[0].fd);
		if (!out_phyaddr0) {
			pr_err("%s: error gettting output physical address\n",
				__func__);
			rc = -EINVAL;
			goto phyaddr_err;
		}
	}
	out_phyaddr1 = out_phyaddr0;

	/* get buffer for duplicate output */
	if (new_frame->duplicate_output) {
		int32_t iden = new_frame->duplicate_identity;
		CPP_DBG("duplication enabled, dup_id=0x%x",
			new_frame->duplicate_identity);

		SWAP_IDENTITY_FOR_BATCH_ON_PREVIEW(new_frame,
			iden, new_frame->identity);

		memset(&dup_buff_mgr_info, 0, sizeof(struct msm_buf_mngr_info));
		dup_buff_mgr_info.session_id = ((iden >> 16) & 0xFFFF);
		dup_buff_mgr_info.stream_id = (iden & 0xFFFF);
		dup_buff_mgr_info.type =
			MSM_CAMERA_BUF_MNGR_BUF_PLANAR;
		rc = msm_cpp_buffer_ops(cpp_dev, VIDIOC_MSM_BUF_MNGR_GET_BUF,
			&dup_buff_mgr_info);
		if (rc < 0) {
			rc = -EAGAIN;
			pr_debug("%s: error getting buffer rc:%d\n",
				__func__, rc);
			goto phyaddr_err;
		}
		new_frame->duplicate_buffer_info.index =
			dup_buff_mgr_info.index;
		out_phyaddr1 = msm_cpp_fetch_buffer_info(cpp_dev,
			&new_frame->duplicate_buffer_info,
			((iden >> 16) & 0xFFFF),
			(iden & 0xFFFF),
			&new_frame->duplicate_buffer_info.fd);
		if (!out_phyaddr1) {
			pr_err("error gettting output physical address\n");
			rc = -EINVAL;
			msm_cpp_buffer_ops(cpp_dev, VIDIOC_MSM_BUF_MNGR_PUT_BUF,
				&dup_buff_mgr_info);
			goto phyaddr_err;
		}
		/* set duplicate enable bit */
		cpp_frame_msg[5] |= 0x1;
		CPP_DBG("out_phyaddr1= %08x\n", (uint32_t)out_phyaddr1);
	}

	tnr_enabled = ((new_frame->feature_mask & TNR_MASK) >> 2);
	if (tnr_enabled) {
		tnr_scratch_buffer0 = msm_cpp_fetch_buffer_info(cpp_dev,
			&new_frame->tnr_scratch_buffer_info[0],
			((new_frame->identity >> 16) & 0xFFFF),
			(new_frame->identity & 0xFFFF),
			&new_frame->tnr_scratch_buffer_info[0].fd);
		if (!tnr_scratch_buffer0) {
			pr_err("error getting scratch buffer physical address\n");
			rc = -EINVAL;
			goto phyaddr_err;
		}

		tnr_scratch_buffer1 = msm_cpp_fetch_buffer_info(cpp_dev,
			&new_frame->tnr_scratch_buffer_info[1],
			((new_frame->identity >> 16) & 0xFFFF),
			(new_frame->identity & 0xFFFF),
			&new_frame->tnr_scratch_buffer_info[1].fd);
		if (!tnr_scratch_buffer1) {
			pr_err("error getting scratch buffer physical address\n");
			rc = -EINVAL;
			goto phyaddr_err;
		}
	} else {
		tnr_scratch_buffer0 = 0;
		tnr_scratch_buffer1 = 0;
	}


	msm_cpp_update_frame_msg_phy_address(cpp_dev, new_frame,
		in_phyaddr, out_phyaddr0, out_phyaddr1,
		tnr_scratch_buffer0, tnr_scratch_buffer1);
	if (tnr_enabled) {
		cpp_frame_msg[10] = tnr_scratch_buffer1 -
			tnr_scratch_buffer0;
	}

	rc = msm_cpp_set_group_buffer(cpp_dev, new_frame, out_phyaddr0,
		num_output_bufs);
	if (rc) {
		pr_err("%s: set group buffer failure %d\n", __func__, rc);
		goto phyaddr_err;
	}

	num_stripes = new_frame->last_stripe_index -
		new_frame->first_stripe_index + 1;
	cpp_frame_msg[1] = stripe_base - 2 + num_stripes * stripe_size;

	frame_qcmd = kzalloc(sizeof(struct msm_queue_cmd), GFP_KERNEL);
	if (!frame_qcmd) {
		pr_err("%s: Insufficient memory\n", __func__);
		rc = -ENOMEM;
		goto qcmd_err;
	}

	atomic_set(&frame_qcmd->on_heap, 1);
	frame_qcmd->command = new_frame;
	rc = msm_cpp_send_frame_to_hardware(cpp_dev, frame_qcmd);
	if (rc < 0) {
		pr_err("%s: error cannot send frame to hardware\n", __func__);
		rc = -EINVAL;
		goto qcmd_err;
	}

	return rc;
qcmd_err:
	kfree(frame_qcmd);
phyaddr_err:
	if (new_frame->output_buffer_info[0].native_buff == 0)
		msm_cpp_buffer_ops(cpp_dev, VIDIOC_MSM_BUF_MNGR_PUT_BUF,
			&buff_mgr_info);
frame_msg_err:
	kfree(cpp_frame_msg);
	kfree(new_frame);
	return rc;
}

static int msm_cpp_cfg(struct cpp_device *cpp_dev,
	struct msm_camera_v4l2_ioctl_t *ioctl_ptr)
{
	struct msm_cpp_frame_info_t *frame = NULL;
	struct msm_cpp_frame_info_t k_frame_info;
	int32_t rc = 0;
	int32_t i = 0;
	int32_t num_buff = sizeof(k_frame_info.output_buffer_info)/
		sizeof(struct msm_cpp_buffer_info_t);
	if (copy_from_user(&k_frame_info,
			(void __user *)ioctl_ptr->ioctl_ptr,
			sizeof(k_frame_info)))
			return -EFAULT;

	frame = msm_cpp_get_frame(ioctl_ptr);
	if (!frame) {
		pr_err("%s: Error allocating frame\n", __func__);
		rc = -EINVAL;
	} else {
		rc = msm_cpp_cfg_frame(cpp_dev, frame);
		if (rc >= 0) {
			for (i = 0; i < num_buff; i++) {
				k_frame_info.output_buffer_info[i] =
					frame->output_buffer_info[i];
			}
		}
	}

	ioctl_ptr->trans_code = rc;

	if (copy_to_user((void __user *)k_frame_info.status, &rc,
		sizeof(int32_t)))
		pr_err("error cannot copy error\n");


	if (copy_to_user((void __user *)ioctl_ptr->ioctl_ptr,
		&k_frame_info, sizeof(k_frame_info))) {
		pr_err("Error: cannot copy k_frame_info");
		return -EFAULT;
	}

	return rc;
}

void msm_cpp_clean_queue(struct cpp_device *cpp_dev)
{
	struct msm_queue_cmd *frame_qcmd = NULL;
	struct msm_cpp_frame_info_t *processed_frame = NULL;
	struct msm_device_queue *queue = NULL;

	while (cpp_dev->processing_q.len) {
		pr_debug("queue len:%d\n", cpp_dev->processing_q.len);
		queue = &cpp_dev->processing_q;
		frame_qcmd = msm_dequeue(queue, list_frame, POP_FRONT);
		if (frame_qcmd) {
			processed_frame = frame_qcmd->command;
			kfree(frame_qcmd);
			if (processed_frame)
				kfree(processed_frame->cpp_cmd_msg);
			kfree(processed_frame);
		}
	}
}

#ifdef CONFIG_COMPAT
static int msm_cpp_copy_from_ioctl_ptr(void *dst_ptr,
	struct msm_camera_v4l2_ioctl_t *ioctl_ptr)
{
	int ret;
	if ((ioctl_ptr->ioctl_ptr == NULL) || (ioctl_ptr->len == 0)) {
		pr_err("%s: Wrong ioctl_ptr %p / len %zu\n", __func__,
			ioctl_ptr, ioctl_ptr->len);
		return -EINVAL;
	}

	/* For compat task, source ptr is in kernel space */
	if (is_compat_task()) {
		memcpy(dst_ptr, ioctl_ptr->ioctl_ptr, ioctl_ptr->len);
		ret = 0;
	} else {
		ret = copy_from_user(dst_ptr,
			(void __user *)ioctl_ptr->ioctl_ptr, ioctl_ptr->len);
		if (ret)
			pr_err("Copy from user fail %d\n", ret);
	}
	return ret ? -EFAULT : 0;
}
#else
static int msm_cpp_copy_from_ioctl_ptr(void *dst_ptr,
	struct msm_camera_v4l2_ioctl_t *ioctl_ptr)
{
	int ret;
	if ((ioctl_ptr->ioctl_ptr == NULL) || (ioctl_ptr->len == 0)) {
		pr_err("%s: Wrong ioctl_ptr %p / len %zu\n", __func__,
			ioctl_ptr, ioctl_ptr->len);
		return -EINVAL;
	}

	ret = copy_from_user(dst_ptr,
		(void __user *)ioctl_ptr->ioctl_ptr, ioctl_ptr->len);
	if (ret)
		pr_err("Copy from user fail %d\n", ret);

	return ret ? -EFAULT : 0;
}
#endif

static int32_t msm_cpp_fw_version(struct cpp_device *cpp_dev)
{
	int32_t rc = 0;

	rc = msm_cpp_poll_rx_empty(cpp_dev->base);
	if (rc) {
		pr_err("%s:%d] poll rx empty failed %d",
			__func__, __LINE__, rc);
		goto end;
	}
	/*Get Firmware Version*/
	msm_cpp_write(MSM_CPP_CMD_GET_FW_VER, cpp_dev->base);
	msm_cpp_write(MSM_CPP_MSG_ID_CMD, cpp_dev->base);
	msm_cpp_write(0x1, cpp_dev->base);
	msm_cpp_write(MSM_CPP_CMD_GET_FW_VER, cpp_dev->base);
	msm_cpp_write(MSM_CPP_MSG_ID_TRAILER, cpp_dev->base);

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_CMD);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_CMD, rc);
		goto end;
	}
	rc = msm_cpp_poll(cpp_dev->base, 0x2);
	if (rc) {
		pr_err("%s:%d] poll command 0x2 failed %d", __func__, __LINE__,
			rc);
		goto end;
	}
	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_FW_VER);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_FW_VER, rc);
		goto end;
	}

	cpp_dev->fw_version = msm_cpp_read(cpp_dev->base);
	pr_debug("CPP FW Version: 0x%08x\n", cpp_dev->fw_version);

	rc = msm_cpp_poll(cpp_dev->base, MSM_CPP_MSG_ID_TRAILER);
	if (rc) {
		pr_err("%s:%d] poll command %x failed %d", __func__, __LINE__,
			MSM_CPP_MSG_ID_TRAILER, rc);
	}

end:

	return rc;
}

static int msm_cpp_validate_input(unsigned int cmd, void *arg,
	struct msm_camera_v4l2_ioctl_t **ioctl_ptr)
{
	switch (cmd) {
	case MSM_SD_SHUTDOWN:
		break;
	default: {
		if (ioctl_ptr == NULL) {
			pr_err("Wrong ioctl_ptr %p\n", ioctl_ptr);
			return -EINVAL;
		}

		*ioctl_ptr = arg;
		if ((*ioctl_ptr == NULL) ||
			((*ioctl_ptr)->ioctl_ptr == NULL)) {
			pr_err("Wrong arg %p\n", arg);
			return -EINVAL;
		}
		break;
	}
	}
	return 0;
}

long msm_cpp_subdev_ioctl(struct v4l2_subdev *sd,
			unsigned int cmd, void *arg)
{
	struct cpp_device *cpp_dev = NULL;
	struct msm_camera_v4l2_ioctl_t *ioctl_ptr = NULL;
	int rc = 0;

	if (sd == NULL) {
		pr_err("sd %p\n", sd);
		return -EINVAL;
	}
	cpp_dev = v4l2_get_subdevdata(sd);
	if (cpp_dev == NULL) {
		pr_err("cpp_dev is null\n");
		return -EINVAL;
	}
	rc = msm_cpp_validate_input(cmd, arg, &ioctl_ptr);
	if (rc != 0) {
		pr_err("input validation failed\n");
		return rc;
	}
	mutex_lock(&cpp_dev->mutex);

	CPP_DBG("E cmd: 0x%x\n", cmd);
	switch (cmd) {
	case VIDIOC_MSM_CPP_GET_HW_INFO: {
		CPP_DBG("VIDIOC_MSM_CPP_GET_HW_INFO\n");
		if (copy_to_user((void __user *)ioctl_ptr->ioctl_ptr,
			&cpp_dev->hw_info,
			sizeof(struct cpp_hw_info))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}
		break;
	}

	case VIDIOC_MSM_CPP_LOAD_FIRMWARE: {
		CPP_DBG("VIDIOC_MSM_CPP_LOAD_FIRMWARE\n");
		if (cpp_dev->is_firmware_loaded == 0) {
			if (cpp_dev->fw_name_bin != NULL) {
				kfree(cpp_dev->fw_name_bin);
				cpp_dev->fw_name_bin = NULL;
			}
			if (cpp_dev->fw) {
				release_firmware(cpp_dev->fw);
				cpp_dev->fw = NULL;
			}
			if ((ioctl_ptr->len == 0) ||
				(ioctl_ptr->len > MSM_CPP_MAX_FW_NAME_LEN)) {
				pr_err("ioctl_ptr->len is 0\n");
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			cpp_dev->fw_name_bin = kzalloc(ioctl_ptr->len+1,
				GFP_KERNEL);
			if (!cpp_dev->fw_name_bin) {
				pr_err("%s:%d: malloc error\n", __func__,
					__LINE__);
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			if (ioctl_ptr->ioctl_ptr == NULL) {
				pr_err("ioctl_ptr->ioctl_ptr=NULL\n");
				kfree(cpp_dev->fw_name_bin);
				cpp_dev->fw_name_bin = NULL;
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			rc = (copy_from_user(cpp_dev->fw_name_bin,
				(void __user *)ioctl_ptr->ioctl_ptr,
				ioctl_ptr->len) ? -EFAULT : 0);
			if (rc) {
				ERR_COPY_FROM_USER();
				kfree(cpp_dev->fw_name_bin);
				cpp_dev->fw_name_bin = NULL;
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			*(cpp_dev->fw_name_bin+ioctl_ptr->len) = '\0';
			rc = request_firmware(&cpp_dev->fw,
				cpp_dev->fw_name_bin,
				&cpp_dev->pdev->dev);
			if (rc) {
				dev_err(&cpp_dev->pdev->dev,
					"Fail to loc blob %s dev %p, rc:%d\n",
					cpp_dev->fw_name_bin,
					&cpp_dev->pdev->dev, rc);
				kfree(cpp_dev->fw_name_bin);
				cpp_dev->fw_name_bin = NULL;
				cpp_dev->fw = NULL;
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			msm_camera_enable_irq(cpp_dev->irq, false);
			rc = cpp_load_fw(cpp_dev, cpp_dev->fw_name_bin);
			if (rc < 0) {
				pr_err("%s: load firmware failure %d\n",
					__func__, rc);
				enable_irq(cpp_dev->irq->start);
				mutex_unlock(&cpp_dev->mutex);
				return rc;
			}
			rc = msm_cpp_fw_version(cpp_dev);
			if (rc < 0) {
				pr_err("%s: get firmware failure %d\n",
					__func__, rc);
				enable_irq(cpp_dev->irq->start);
				mutex_unlock(&cpp_dev->mutex);
				return rc;
			}
			msm_camera_enable_irq(cpp_dev->irq, true);
			cpp_dev->is_firmware_loaded = 1;
		}
		break;
	}
	case VIDIOC_MSM_CPP_CFG:
		CPP_DBG("VIDIOC_MSM_CPP_CFG\n");
		rc = msm_cpp_cfg(cpp_dev, ioctl_ptr);
		break;
	case VIDIOC_MSM_CPP_FLUSH_QUEUE:
		CPP_DBG("VIDIOC_MSM_CPP_FLUSH_QUEUE\n");
		rc = msm_cpp_flush_frames(cpp_dev);
		break;
	case VIDIOC_MSM_CPP_DELETE_STREAM_BUFF:
	case VIDIOC_MSM_CPP_APPEND_STREAM_BUFF_INFO:
	case VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO: {
		uint32_t j;
		struct msm_cpp_stream_buff_info_t *u_stream_buff_info = NULL;
		struct msm_cpp_stream_buff_info_t k_stream_buff_info;
		struct msm_cpp_buff_queue_info_t *buff_queue_info = NULL;

		memset(&k_stream_buff_info, 0, sizeof(k_stream_buff_info));
		CPP_DBG("VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO\n");
		if (sizeof(struct msm_cpp_stream_buff_info_t) !=
			ioctl_ptr->len) {
			pr_err("%s:%d: invalid length\n", __func__, __LINE__);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		u_stream_buff_info = kzalloc(ioctl_ptr->len, GFP_KERNEL);
		if (!u_stream_buff_info) {
			pr_err("%s:%d: malloc error\n", __func__, __LINE__);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		rc = msm_cpp_copy_from_ioctl_ptr(u_stream_buff_info,
			ioctl_ptr);
		if (rc) {
			ERR_COPY_FROM_USER();
			kfree(u_stream_buff_info);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		k_stream_buff_info.num_buffs = u_stream_buff_info->num_buffs;
		k_stream_buff_info.identity = u_stream_buff_info->identity;

		if (k_stream_buff_info.num_buffs > MSM_CAMERA_MAX_STREAM_BUF) {
			pr_err("%s:%d: unexpected large num buff requested\n",
				__func__, __LINE__);
			kfree(u_stream_buff_info);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		if (u_stream_buff_info->num_buffs != 0) {
			k_stream_buff_info.buffer_info =
				kzalloc(k_stream_buff_info.num_buffs *
				sizeof(struct msm_cpp_buffer_info_t),
				GFP_KERNEL);
			if (ZERO_OR_NULL_PTR(k_stream_buff_info.buffer_info)) {
				pr_err("%s:%d: malloc error\n",
					__func__, __LINE__);
				kfree(u_stream_buff_info);
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}

			rc = (copy_from_user(k_stream_buff_info.buffer_info,
				(void __user *)u_stream_buff_info->buffer_info,
				k_stream_buff_info.num_buffs *
				sizeof(struct msm_cpp_buffer_info_t)) ?
				-EFAULT : 0);
			if (rc) {
				ERR_COPY_FROM_USER();
				kfree(k_stream_buff_info.buffer_info);
				kfree(u_stream_buff_info);
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
		}

		buff_queue_info = msm_cpp_get_buff_queue_entry(cpp_dev,
				(k_stream_buff_info.identity >> 16) & 0xFFFF,
				k_stream_buff_info.identity & 0xFFFF);

		if (buff_queue_info == NULL) {
			if (cmd == VIDIOC_MSM_CPP_DELETE_STREAM_BUFF)
				goto STREAM_BUFF_END;

			rc = msm_cpp_add_buff_queue_entry(cpp_dev,
				((k_stream_buff_info.identity >> 16) & 0xFFFF),
				(k_stream_buff_info.identity & 0xFFFF));

			if (rc)
				goto STREAM_BUFF_END;

			if (cpp_dev->stream_cnt == 0) {
				cpp_dev->state = CPP_STATE_ACTIVE;
				msm_cpp_clear_timer(cpp_dev);
				msm_cpp_clean_queue(cpp_dev);
			}
			cpp_dev->stream_cnt++;
			CPP_DBG("stream_cnt:%d\n", cpp_dev->stream_cnt);
		}
		buff_queue_info = msm_cpp_get_buff_queue_entry(cpp_dev,
			((k_stream_buff_info.identity >> 16) & 0xFFFF),
			(k_stream_buff_info.identity & 0xFFFF));
		if (buff_queue_info == NULL) {
			pr_err("error finding buffer queue entry identity:%d\n",
				k_stream_buff_info.identity);
			kfree(k_stream_buff_info.buffer_info);
			kfree(u_stream_buff_info);
			cpp_dev->stream_cnt--;
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		if (VIDIOC_MSM_CPP_DELETE_STREAM_BUFF == cmd) {
			for (j = 0; j < k_stream_buff_info.num_buffs; j++) {
				msm_cpp_dequeue_buff(cpp_dev, buff_queue_info,
				k_stream_buff_info.buffer_info[j].index,
				k_stream_buff_info.buffer_info[j].native_buff);
			}
		} else {
			for (j = 0; j < k_stream_buff_info.num_buffs; j++) {
				msm_cpp_queue_buffer_info(cpp_dev,
					buff_queue_info,
					&k_stream_buff_info.buffer_info[j]);
			}
		}

STREAM_BUFF_END:
		kfree(k_stream_buff_info.buffer_info);
		kfree(u_stream_buff_info);

		break;
	}
	case VIDIOC_MSM_CPP_DEQUEUE_STREAM_BUFF_INFO: {
		uint32_t identity;
		struct msm_cpp_buff_queue_info_t *buff_queue_info;
		CPP_DBG("VIDIOC_MSM_CPP_DEQUEUE_STREAM_BUFF_INFO\n");
		if ((ioctl_ptr->len == 0) ||
		    (ioctl_ptr->len > sizeof(uint32_t))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		rc = msm_cpp_copy_from_ioctl_ptr(&identity, ioctl_ptr);
		if (rc) {
			ERR_COPY_FROM_USER();
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		buff_queue_info = msm_cpp_get_buff_queue_entry(cpp_dev,
			((identity >> 16) & 0xFFFF), (identity & 0xFFFF));
		if (buff_queue_info == NULL) {
			pr_err("error finding buffer queue entry for identity:%d\n",
				identity);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		msm_cpp_dequeue_buff_info_list(cpp_dev, buff_queue_info);
		rc = msm_cpp_free_buff_queue_entry(cpp_dev,
			buff_queue_info->session_id,
			buff_queue_info->stream_id);
		if (cpp_dev->stream_cnt > 0) {
			cpp_dev->stream_cnt--;
			pr_debug("stream_cnt:%d\n", cpp_dev->stream_cnt);
			if (cpp_dev->stream_cnt == 0) {
				rc = msm_cpp_update_bandwidth_setting(cpp_dev,
					0, 0);
				if (rc < 0)
					pr_err("Bandwidth Reset Failed!\n");
				cpp_dev->state = CPP_STATE_IDLE;
				msm_cpp_clear_timer(cpp_dev);
				msm_cpp_clean_queue(cpp_dev);
			}
		} else {
			pr_err("error: stream count underflow %d\n",
				cpp_dev->stream_cnt);
		}
		break;
	}
	case VIDIOC_MSM_CPP_GET_EVENTPAYLOAD: {
		struct msm_device_queue *queue = &cpp_dev->eventData_q;
		struct msm_queue_cmd *event_qcmd;
		struct msm_cpp_frame_info_t *process_frame;
		CPP_DBG("VIDIOC_MSM_CPP_GET_EVENTPAYLOAD\n");
		event_qcmd = msm_dequeue(queue, list_eventdata, POP_FRONT);
		if (!event_qcmd) {
			pr_err("no queue cmd available");
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		process_frame = event_qcmd->command;
		CPP_DBG("fid %d\n", process_frame->frame_id);
		if (copy_to_user((void __user *)ioctl_ptr->ioctl_ptr,
				process_frame,
				sizeof(struct msm_cpp_frame_info_t))) {
					mutex_unlock(&cpp_dev->mutex);
					kfree(process_frame->cpp_cmd_msg);
					kfree(process_frame);
					kfree(event_qcmd);
					return -EFAULT;
		}

		kfree(process_frame->cpp_cmd_msg);
		kfree(process_frame);
		kfree(event_qcmd);
		break;
	}
	case VIDIOC_MSM_CPP_SET_CLOCK: {
		uint32_t msm_cpp_core_clk_idx;
		struct msm_cpp_clock_settings_t clock_settings;
		unsigned long clock_rate = 0;
		CPP_DBG("VIDIOC_MSM_CPP_SET_CLOCK\n");
		if (ioctl_ptr->len == 0) {
			pr_err("ioctl_ptr->len is 0\n");
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		if (ioctl_ptr->ioctl_ptr == NULL) {
			pr_err("ioctl_ptr->ioctl_ptr is NULL\n");
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		if (ioctl_ptr->len != sizeof(struct msm_cpp_clock_settings_t)) {
			pr_err("Not valid ioctl_ptr->len\n");
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		rc = msm_cpp_copy_from_ioctl_ptr(&clock_settings, ioctl_ptr);
		if (rc) {
			ERR_COPY_FROM_USER();
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}

		if (clock_settings.clock_rate > 0) {
			msm_cpp_core_clk_idx = msm_cpp_get_clock_index(cpp_dev,
				"cpp_core_clk");
			if (msm_cpp_core_clk_idx < 0) {
				pr_err(" Fail to get clock index\n");
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			rc = msm_cpp_update_bandwidth_setting(cpp_dev,
					clock_settings.avg,
					clock_settings.inst);
			if (rc < 0) {
				pr_err("Bandwidth Set Failed!\n");
				rc = msm_cpp_update_bandwidth_setting(cpp_dev,
					0, 0);
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			clock_rate = msm_cpp_set_core_clk(cpp_dev,
				clock_settings.clock_rate,
				msm_cpp_core_clk_idx);
			if (rc < 0) {
				pr_err("Fail to set core clk\n");
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			}
			if (clock_rate != clock_settings.clock_rate)
				pr_err("clock rate differ from settings\n");
			msm_isp_util_update_clk_rate(clock_settings.clock_rate);
		}
		break;
	}
	case MSM_SD_NOTIFY_FREEZE:
		break;
	case MSM_SD_UNNOTIFY_FREEZE:
		break;
	case MSM_SD_SHUTDOWN:
		CPP_DBG("MSM_SD_SHUTDOWN\n");
		mutex_unlock(&cpp_dev->mutex);
		pr_warn("shutdown cpp node. open cnt:%d\n",
			cpp_dev->cpp_open_cnt);

		if (atomic_read(&cpp_timer.used))
			pr_debug("Timer state not cleared\n");

		while (cpp_dev->cpp_open_cnt != 0)
			cpp_close_node(sd, NULL);
		mutex_lock(&cpp_dev->mutex);
		rc = 0;
		break;
	case VIDIOC_MSM_CPP_QUEUE_BUF: {
		struct msm_pproc_queue_buf_info queue_buf_info;
		CPP_DBG("VIDIOC_MSM_CPP_QUEUE_BUF\n");

		if (ioctl_ptr->len != sizeof(struct msm_pproc_queue_buf_info)) {
			pr_err("%s: Not valid ioctl_ptr->len\n", __func__);
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		rc = msm_cpp_copy_from_ioctl_ptr(&queue_buf_info, ioctl_ptr);
		if (rc) {
			ERR_COPY_FROM_USER();
			break;
		}

		if (queue_buf_info.is_buf_dirty) {
			rc = msm_cpp_buffer_ops(cpp_dev,
				VIDIOC_MSM_BUF_MNGR_PUT_BUF,
				&queue_buf_info.buff_mgr_info);
		} else {
			rc = msm_cpp_buffer_ops(cpp_dev,
				VIDIOC_MSM_BUF_MNGR_BUF_DONE,
				&queue_buf_info.buff_mgr_info);
		}
		if (rc < 0) {
			pr_err("error in buf done\n");
			rc = -EINVAL;
		}

		break;
	}
	case VIDIOC_MSM_CPP_POP_STREAM_BUFFER: {
		struct msm_buf_mngr_info buff_mgr_info;
		struct msm_cpp_frame_info_t frame_info;
		if (ioctl_ptr->ioctl_ptr == NULL ||
			(ioctl_ptr->len !=
			sizeof(struct msm_cpp_frame_info_t))) {
			rc = -EINVAL;
			break;
		}

		rc = msm_cpp_copy_from_ioctl_ptr(&frame_info, ioctl_ptr);
		if (rc) {
			ERR_COPY_FROM_USER();
			break;
		}

		memset(&buff_mgr_info, 0, sizeof(struct msm_buf_mngr_info));
		buff_mgr_info.session_id =
			((frame_info.identity >> 16) & 0xFFFF);
		buff_mgr_info.stream_id = (frame_info.identity & 0xFFFF);
		buff_mgr_info.type =
			MSM_CAMERA_BUF_MNGR_BUF_PLANAR;
		rc = msm_cpp_buffer_ops(cpp_dev, VIDIOC_MSM_BUF_MNGR_GET_BUF,
			&buff_mgr_info);
		if (rc < 0) {
			rc = -EAGAIN;
			pr_err_ratelimited("error getting buffer rc:%d\n", rc);
			break;
		}
		buff_mgr_info.frame_id = frame_info.frame_id;
		rc = msm_cpp_buffer_ops(cpp_dev, VIDIOC_MSM_BUF_MNGR_BUF_DONE,
			&buff_mgr_info);
		if (rc < 0) {
			pr_err("error in buf done\n");
			rc = -EAGAIN;
		}
		break;
	}
	default:
		pr_err_ratelimited("invalid value: cmd=0x%x\n", cmd);
		break;
	case VIDIOC_MSM_CPP_IOMMU_ATTACH: {
		if (cpp_dev->iommu_state == CPP_IOMMU_STATE_DETACHED) {
			rc = cam_smmu_ops(cpp_dev->iommu_hdl, CAM_SMMU_ATTACH);
			if (rc < 0) {
				pr_err("%s:%dError iommu_attach_device failed\n",
					__func__, __LINE__);
				rc = -EINVAL;
				break;
			}
			cpp_dev->iommu_state = CPP_IOMMU_STATE_ATTACHED;
		} else {
			pr_err("%s:%d IOMMMU attach triggered in invalid state\n",
				__func__, __LINE__);
			rc = -EINVAL;
		}
		break;
	}
	case VIDIOC_MSM_CPP_IOMMU_DETACH: {
		if ((cpp_dev->iommu_state == CPP_IOMMU_STATE_ATTACHED) &&
			(cpp_dev->stream_cnt == 0)) {
			rc = cam_smmu_ops(cpp_dev->iommu_hdl, CAM_SMMU_DETACH);
			if (rc < 0) {
				pr_err("%s:%dError iommu atach failed\n",
					__func__, __LINE__);
				rc = -EINVAL;
				break;
			}
			cpp_dev->iommu_state = CPP_IOMMU_STATE_DETACHED;
		} else {
			pr_err("%s:%d IOMMMU attach triggered in invalid state\n",
				__func__, __LINE__);
		}
		break;
	}
	}
	mutex_unlock(&cpp_dev->mutex);
	CPP_DBG("X\n");
	return rc;
}

int msm_cpp_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
	struct v4l2_event_subscription *sub)
{
	CPP_DBG("Called\n");
	return v4l2_event_subscribe(fh, sub, MAX_CPP_V4l2_EVENTS, NULL);
}

int msm_cpp_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
	struct v4l2_event_subscription *sub)
{
	CPP_DBG("Called\n");
	return v4l2_event_unsubscribe(fh, sub);
}

static struct v4l2_subdev_core_ops msm_cpp_subdev_core_ops = {
	.ioctl = msm_cpp_subdev_ioctl,
	.subscribe_event = msm_cpp_subscribe_event,
	.unsubscribe_event = msm_cpp_unsubscribe_event,
};

static const struct v4l2_subdev_ops msm_cpp_subdev_ops = {
	.core = &msm_cpp_subdev_core_ops,
};

static long msm_cpp_subdev_do_ioctl(
	struct file *file, unsigned int cmd, void *arg)
{
	struct video_device *vdev;
	struct v4l2_subdev *sd;
	struct v4l2_fh *vfh = NULL;

	if ((arg == NULL) || (file == NULL)) {
		pr_err("Invalid input parameters arg %p, file %p\n", arg, file);
		return -EINVAL;
	}
	vdev = video_devdata(file);
	sd = vdev_to_v4l2_subdev(vdev);

	if (sd == NULL) {
		pr_err("Invalid input parameter sd %p\n", sd);
		return -EINVAL;
	}
	vfh = file->private_data;

	switch (cmd) {
	case VIDIOC_DQEVENT:
		if (!(sd->flags & V4L2_SUBDEV_FL_HAS_EVENTS))
			return -ENOIOCTLCMD;

		return v4l2_event_dequeue(vfh, arg, file->f_flags & O_NONBLOCK);

	case VIDIOC_SUBSCRIBE_EVENT:
		return v4l2_subdev_call(sd, core, subscribe_event, vfh, arg);

	case VIDIOC_UNSUBSCRIBE_EVENT:
		return v4l2_subdev_call(sd, core, unsubscribe_event, vfh, arg);

	case VIDIOC_MSM_CPP_GET_INST_INFO: {
		uint32_t i;
		struct cpp_device *cpp_dev = v4l2_get_subdevdata(sd);
		struct msm_camera_v4l2_ioctl_t *ioctl_ptr = arg;
		struct msm_cpp_frame_info_t inst_info;
		memset(&inst_info, 0, sizeof(struct msm_cpp_frame_info_t));
		for (i = 0; i < MAX_ACTIVE_CPP_INSTANCE; i++) {
			if (cpp_dev->cpp_subscribe_list[i].vfh == vfh) {
				inst_info.inst_id = i;
				break;
			}
		}
		if (copy_to_user(
				(void __user *)ioctl_ptr->ioctl_ptr, &inst_info,
				sizeof(struct msm_cpp_frame_info_t))) {
			return -EFAULT;
		}
	}
	break;
	default:
		return v4l2_subdev_call(sd, core, ioctl, cmd, arg);
	}

	return 0;
}

static long msm_cpp_subdev_fops_ioctl(struct file *file, unsigned int cmd,
	unsigned long arg)
{
	return video_usercopy(file, cmd, arg, msm_cpp_subdev_do_ioctl);
}


#ifdef CONFIG_COMPAT
static struct msm_cpp_frame_info_t *get_64bit_cpp_frame_from_compat(
	struct msm_camera_v4l2_ioctl_t *kp_ioctl)
{
	struct msm_cpp_frame_info32_t *new_frame32 = NULL;
	struct msm_cpp_frame_info_t *new_frame = NULL;
	uint32_t *cpp_frame_msg;
	void *cpp_cmd_msg_64bit;
	int32_t rc, i;

	new_frame32 = kzalloc(sizeof(struct msm_cpp_frame_info32_t),
		GFP_KERNEL);
	if (!new_frame32) {
		pr_err("Insufficient memory\n");
		goto no_mem32;
	}
	new_frame = kzalloc(sizeof(struct msm_cpp_frame_info_t), GFP_KERNEL);
	if (!new_frame) {
		pr_err("Insufficient memory\n");
		goto no_mem;
	}

	rc = (copy_from_user(new_frame32, (void __user *)kp_ioctl->ioctl_ptr,
			sizeof(struct msm_cpp_frame_info32_t)) ? -EFAULT : 0);
	if (rc) {
		ERR_COPY_FROM_USER();
		goto frame_err;
	}

	new_frame->frame_id = new_frame32->frame_id;
	new_frame->inst_id = new_frame32->inst_id;
	new_frame->client_id = new_frame32->client_id;
	new_frame->frame_type = new_frame32->frame_type;
	new_frame->num_strips = new_frame32->num_strips;

	new_frame->src_fd =  new_frame32->src_fd;
	new_frame->dst_fd =  new_frame32->dst_fd;

	new_frame->timestamp.tv_sec =
		(unsigned long)new_frame32->timestamp.tv_sec;
	new_frame->timestamp.tv_usec =
		(unsigned long)new_frame32->timestamp.tv_usec;

	new_frame->in_time.tv_sec =
		(unsigned long)new_frame32->in_time.tv_sec;
	new_frame->in_time.tv_usec =
		(unsigned long)new_frame32->in_time.tv_usec;

	new_frame->out_time.tv_sec =
		(unsigned long)new_frame32->out_time.tv_sec;
	new_frame->out_time.tv_usec =
		(unsigned long)new_frame32->out_time.tv_usec;

	new_frame->msg_len = new_frame32->msg_len;
	new_frame->identity = new_frame32->identity;
	new_frame->input_buffer_info = new_frame32->input_buffer_info;
	new_frame->output_buffer_info[0] =
		new_frame32->output_buffer_info[0];
	new_frame->output_buffer_info[1] =
		new_frame32->output_buffer_info[1];
	new_frame->output_buffer_info[2] =
		new_frame32->output_buffer_info[2];
	new_frame->output_buffer_info[3] =
		new_frame32->output_buffer_info[3];
	new_frame->output_buffer_info[4] =
		new_frame32->output_buffer_info[4];
	new_frame->output_buffer_info[5] =
		new_frame32->output_buffer_info[5];
	new_frame->output_buffer_info[6] =
		new_frame32->output_buffer_info[6];
	new_frame->output_buffer_info[7] =
		new_frame32->output_buffer_info[7];
	new_frame->duplicate_buffer_info =
		new_frame32->duplicate_buffer_info;
	new_frame->tnr_scratch_buffer_info[0] =
		new_frame32->tnr_scratch_buffer_info[0];
	new_frame->tnr_scratch_buffer_info[1] =
		new_frame32->tnr_scratch_buffer_info[1];
	new_frame->duplicate_output = new_frame32->duplicate_output;
	new_frame->we_disable = new_frame32->we_disable;
	new_frame->duplicate_identity = new_frame32->duplicate_identity;
	new_frame->feature_mask = new_frame32->feature_mask;
	new_frame->partial_frame_indicator =
		new_frame32->partial_frame_indicator;
	new_frame->first_payload = new_frame32->first_payload;
	new_frame->last_payload = new_frame32->last_payload;
	new_frame->first_stripe_index = new_frame32->first_stripe_index;
	new_frame->last_stripe_index = new_frame32->last_stripe_index;
	new_frame->stripe_info_offset =
		new_frame32->stripe_info_offset;
	new_frame->stripe_info = new_frame32->stripe_info;
	new_frame->batch_info.batch_mode =
		new_frame32->batch_info.batch_mode;
	new_frame->batch_info.batch_size =
		new_frame32->batch_info.batch_size;
	new_frame->batch_info.cont_idx =
		new_frame32->batch_info.cont_idx;
	for (i = 0; i < MAX_PLANES; i++)
		new_frame->batch_info.intra_plane_offset[i] =
			new_frame32->batch_info.intra_plane_offset[i];
	new_frame->batch_info.pick_preview_idx =
		new_frame32->batch_info.pick_preview_idx;

	/* Convert the 32 bit pointer to 64 bit pointer */
	new_frame->cookie = compat_ptr(new_frame32->cookie);
	cpp_cmd_msg_64bit = compat_ptr(new_frame32->cpp_cmd_msg);
	if ((new_frame->msg_len == 0) ||
		(new_frame->msg_len > MSM_CPP_MAX_FRAME_LENGTH)) {
		pr_err("%s:%d: Invalid frame len:%d\n", __func__,
			__LINE__, new_frame->msg_len);
		goto frame_err;
	}

	cpp_frame_msg = kzalloc(sizeof(uint32_t)*new_frame->msg_len,
		GFP_KERNEL);
	if (!cpp_frame_msg) {
		pr_err("Insufficient memory\n");
		goto frame_err;
	}

	rc = (copy_from_user(cpp_frame_msg,
		(void __user *)cpp_cmd_msg_64bit,
		sizeof(uint32_t)*new_frame->msg_len) ? -EFAULT : 0);
	if (rc) {
		ERR_COPY_FROM_USER();
		goto frame_msg_err;
	}
	new_frame->cpp_cmd_msg = cpp_frame_msg;

	kfree(new_frame32);
	return new_frame;

frame_msg_err:
	kfree(cpp_frame_msg);
frame_err:
	kfree(new_frame);
no_mem:
	kfree(new_frame32);
no_mem32:
	return NULL;
}

static void get_compat_frame_from_64bit(struct msm_cpp_frame_info_t *frame,
	struct msm_cpp_frame_info32_t *k32_frame)
{
	int32_t i;

	k32_frame->frame_id = frame->frame_id;
	k32_frame->inst_id = frame->inst_id;
	k32_frame->client_id = frame->client_id;
	k32_frame->frame_type = frame->frame_type;
	k32_frame->num_strips = frame->num_strips;

	k32_frame->src_fd = frame->src_fd;
	k32_frame->dst_fd = frame->dst_fd;

	k32_frame->timestamp.tv_sec = (uint32_t)frame->timestamp.tv_sec;
	k32_frame->timestamp.tv_usec = (uint32_t)frame->timestamp.tv_usec;

	k32_frame->in_time.tv_sec = (uint32_t)frame->in_time.tv_sec;
	k32_frame->in_time.tv_usec = (uint32_t)frame->in_time.tv_usec;

	k32_frame->out_time.tv_sec = (uint32_t)frame->out_time.tv_sec;
	k32_frame->out_time.tv_usec = (uint32_t)frame->out_time.tv_usec;

	k32_frame->msg_len = frame->msg_len;
	k32_frame->identity = frame->identity;
	k32_frame->input_buffer_info = frame->input_buffer_info;
	k32_frame->output_buffer_info[0] = frame->output_buffer_info[0];
	k32_frame->output_buffer_info[1] = frame->output_buffer_info[1];
	k32_frame->output_buffer_info[2] = frame->output_buffer_info[2];
	k32_frame->output_buffer_info[3] = frame->output_buffer_info[3];
	k32_frame->output_buffer_info[4] = frame->output_buffer_info[4];
	k32_frame->output_buffer_info[5] = frame->output_buffer_info[5];
	k32_frame->output_buffer_info[6] = frame->output_buffer_info[6];
	k32_frame->output_buffer_info[7] = frame->output_buffer_info[7];
	k32_frame->duplicate_buffer_info = frame->duplicate_buffer_info;
	k32_frame->duplicate_output = frame->duplicate_output;
	k32_frame->we_disable = frame->we_disable;
	k32_frame->duplicate_identity = frame->duplicate_identity;
	k32_frame->feature_mask = frame->feature_mask;
	k32_frame->cookie = ptr_to_compat(frame->cookie);
	k32_frame->partial_frame_indicator = frame->partial_frame_indicator;
	k32_frame->first_payload = frame->first_payload;
	k32_frame->last_payload = frame->last_payload;
	k32_frame->first_stripe_index = frame->first_stripe_index;
	k32_frame->last_stripe_index = frame->last_stripe_index;
	k32_frame->stripe_info_offset = frame->stripe_info_offset;
	k32_frame->stripe_info = frame->stripe_info;
	k32_frame->batch_info.batch_mode = frame->batch_info.batch_mode;
	k32_frame->batch_info.batch_size = frame->batch_info.batch_size;
	k32_frame->batch_info.cont_idx = frame->batch_info.cont_idx;
	for (i = 0; i < MAX_PLANES; i++)
		k32_frame->batch_info.intra_plane_offset[i] =
			frame->batch_info.intra_plane_offset[i];
	k32_frame->batch_info.pick_preview_idx =
		frame->batch_info.pick_preview_idx;
}

static long msm_cpp_subdev_fops_compat_ioctl(struct file *file,
	unsigned int cmd, unsigned long arg)
{
	struct video_device *vdev = video_devdata(file);
	struct v4l2_subdev *sd = vdev_to_v4l2_subdev(vdev);
	struct cpp_device *cpp_dev = NULL;

	int32_t rc = 0;
	struct msm_camera_v4l2_ioctl_t kp_ioctl;
	struct msm_camera_v4l2_ioctl32_t up32_ioctl;
	struct msm_cpp_clock_settings_t clock_settings;
	struct msm_pproc_queue_buf_info k_queue_buf;
	struct msm_cpp_stream_buff_info_t k_cpp_buff_info;
	struct msm_cpp_frame_info32_t k32_frame_info;
	struct msm_cpp_frame_info_t k64_frame_info;
	uint32_t identity_k = 0;
	void __user *up = (void __user *)arg;

	if (sd == NULL) {
		pr_err("%s: Subdevice is NULL\n", __func__);
		return -EINVAL;
	}
	cpp_dev = v4l2_get_subdevdata(sd);
	if (!vdev || !cpp_dev) {
		pr_err("Invalid vdev %p or cpp_dev %p structures!",
			vdev, cpp_dev);
		return -EINVAL;
	}
	mutex_lock(&cpp_dev->mutex);
	/*
	 * copy the user space 32 bit pointer to kernel space 32 bit compat
	 * pointer
	 */
	if (copy_from_user(&up32_ioctl, (void __user *)up,
		sizeof(up32_ioctl))) {
		mutex_unlock(&cpp_dev->mutex);
		return -EFAULT;
	}

	/* copy the data from 32 bit compat to kernel space 64 bit pointer */
	kp_ioctl.id = up32_ioctl.id;
	kp_ioctl.len = up32_ioctl.len;
	kp_ioctl.trans_code = up32_ioctl.trans_code;
	/* Convert the 32 bit pointer to 64 bit pointer */
	kp_ioctl.ioctl_ptr = compat_ptr(up32_ioctl.ioctl_ptr);
	if (!kp_ioctl.ioctl_ptr) {
		pr_err("%s: Invalid ioctl pointer\n", __func__);
		mutex_unlock(&cpp_dev->mutex);
		return -EINVAL;
	}

	/*
	 * Convert 32 bit IOCTL ID's to 64 bit IOCTL ID's
	 * except VIDIOC_MSM_CPP_CFG32, which needs special
	 * processing
	 */
	switch (cmd) {
	case VIDIOC_MSM_CPP_CFG32:
	{
		struct msm_cpp_frame_info32_t k32_frame_info;
		struct msm_cpp_frame_info_t *cpp_frame = NULL;
		int32_t *status;

		if (copy_from_user(&k32_frame_info,
			(void __user *)kp_ioctl.ioctl_ptr,
			sizeof(k32_frame_info))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}
		/* Get the cpp frame pointer */
		cpp_frame = get_64bit_cpp_frame_from_compat(&kp_ioctl);

		/* Configure the cpp frame */
		if (cpp_frame) {
			rc = msm_cpp_cfg_frame(cpp_dev, cpp_frame);
			/* Cpp_frame can be free'd by cfg_frame in error */
			if (rc >= 0) {
				k32_frame_info.output_buffer_info[0] =
					cpp_frame->output_buffer_info[0];
				k32_frame_info.output_buffer_info[1] =
					cpp_frame->output_buffer_info[1];
			}
		} else {
			pr_err("%s: Error getting frame\n", __func__);
			mutex_unlock(&cpp_dev->mutex);
			rc = -EINVAL;
		}

		kp_ioctl.trans_code = rc;

		/* Convert the 32 bit pointer to 64 bit pointer */
		status = compat_ptr(k32_frame_info.status);

		if (copy_to_user((void __user *)status, &rc,
			sizeof(int32_t)))
			pr_err("error cannot copy error\n");

		if (copy_to_user((void __user *)kp_ioctl.ioctl_ptr,
			&k32_frame_info,
			sizeof(k32_frame_info))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}

		cmd = VIDIOC_MSM_CPP_CFG;
		break;
	}
	case VIDIOC_MSM_CPP_GET_HW_INFO32:
	{
		struct cpp_hw_info_32_t u32_cpp_hw_info;
		uint32_t i;

		u32_cpp_hw_info.cpp_hw_version =
			cpp_dev->hw_info.cpp_hw_version;
		u32_cpp_hw_info.cpp_hw_caps = cpp_dev->hw_info.cpp_hw_caps;
		memset(&u32_cpp_hw_info.freq_tbl, 0x00,
				sizeof(u32_cpp_hw_info.freq_tbl));
		for (i = 0; i < cpp_dev->hw_info.freq_tbl_count; i++)
			u32_cpp_hw_info.freq_tbl[i] =
				cpp_dev->hw_info.freq_tbl[i];

		u32_cpp_hw_info.freq_tbl_count =
			cpp_dev->hw_info.freq_tbl_count;
		if (copy_to_user((void __user *)kp_ioctl.ioctl_ptr,
			&u32_cpp_hw_info, sizeof(struct cpp_hw_info_32_t))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}

		cmd = VIDIOC_MSM_CPP_GET_HW_INFO;
		break;
	}
	case VIDIOC_MSM_CPP_LOAD_FIRMWARE32:
		cmd = VIDIOC_MSM_CPP_LOAD_FIRMWARE;
		break;
	case VIDIOC_MSM_CPP_GET_INST_INFO32:
	{
		struct cpp_device *cpp_dev = v4l2_get_subdevdata(sd);
		struct msm_cpp_frame_info32_t inst_info;
		struct v4l2_fh *vfh = NULL;
		uint32_t i;
		vfh = file->private_data;
		memset(&inst_info, 0, sizeof(struct msm_cpp_frame_info32_t));
		for (i = 0; i < MAX_ACTIVE_CPP_INSTANCE; i++) {
			if (cpp_dev->cpp_subscribe_list[i].vfh == vfh) {
				inst_info.inst_id = i;
				break;
			}
		}
		if (copy_to_user(
				(void __user *)kp_ioctl.ioctl_ptr, &inst_info,
				sizeof(struct msm_cpp_frame_info32_t))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}
		cmd = VIDIOC_MSM_CPP_GET_INST_INFO;
		break;
	}
	case VIDIOC_MSM_CPP_FLUSH_QUEUE32:
		cmd = VIDIOC_MSM_CPP_FLUSH_QUEUE;
		break;
	case VIDIOC_MSM_CPP_APPEND_STREAM_BUFF_INFO32:
	case VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO32:
	case VIDIOC_MSM_CPP_DELETE_STREAM_BUFF32:
	{
		compat_uptr_t p;
		struct msm_cpp_stream_buff_info32_t *u32_cpp_buff_info =
		  (struct msm_cpp_stream_buff_info32_t *)kp_ioctl.ioctl_ptr;

		get_user(k_cpp_buff_info.identity,
			&u32_cpp_buff_info->identity);
		get_user(k_cpp_buff_info.num_buffs,
			&u32_cpp_buff_info->num_buffs);
		get_user(p, &u32_cpp_buff_info->buffer_info);
		k_cpp_buff_info.buffer_info = compat_ptr(p);

		kp_ioctl.ioctl_ptr = (void *)&k_cpp_buff_info;
		if (is_compat_task()) {
			if (kp_ioctl.len != sizeof(
				struct msm_cpp_stream_buff_info32_t)) {
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			} else {
				kp_ioctl.len =
				  sizeof(struct msm_cpp_stream_buff_info_t);
			}
		}
		if (cmd == VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO32)
			cmd = VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO;
		else if (cmd == VIDIOC_MSM_CPP_DELETE_STREAM_BUFF32)
			cmd = VIDIOC_MSM_CPP_DELETE_STREAM_BUFF;
		else
			cmd = VIDIOC_MSM_CPP_APPEND_STREAM_BUFF_INFO;
		break;
	}
	case VIDIOC_MSM_CPP_DEQUEUE_STREAM_BUFF_INFO32: {
		uint32_t *identity_u = (uint32_t *)kp_ioctl.ioctl_ptr;

		get_user(identity_k, identity_u);
		kp_ioctl.ioctl_ptr = (void *)&identity_k;
		kp_ioctl.len = sizeof(uint32_t);
		cmd = VIDIOC_MSM_CPP_DEQUEUE_STREAM_BUFF_INFO;
		break;
	}
	case VIDIOC_MSM_CPP_GET_EVENTPAYLOAD32:
	{
		struct msm_device_queue *queue = &cpp_dev->eventData_q;
		struct msm_queue_cmd *event_qcmd;
		struct msm_cpp_frame_info_t *process_frame;
		struct msm_cpp_frame_info32_t k32_process_frame;

		CPP_DBG("VIDIOC_MSM_CPP_GET_EVENTPAYLOAD\n");
		event_qcmd = msm_dequeue(queue, list_eventdata, POP_FRONT);
		if (!event_qcmd) {
			pr_err("no queue cmd available");
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		}
		process_frame = event_qcmd->command;

		memset(&k32_process_frame, 0, sizeof(k32_process_frame));
		get_compat_frame_from_64bit(process_frame, &k32_process_frame);

		CPP_DBG("fid %d\n", process_frame->frame_id);
		if (copy_to_user((void __user *)kp_ioctl.ioctl_ptr,
			&k32_process_frame,
			sizeof(struct msm_cpp_frame_info32_t))) {
			kfree(process_frame->cpp_cmd_msg);
			kfree(process_frame);
			kfree(event_qcmd);
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}

		kfree(process_frame->cpp_cmd_msg);
		kfree(process_frame);
		kfree(event_qcmd);
		cmd = VIDIOC_MSM_CPP_GET_EVENTPAYLOAD;
		break;
	}
	case VIDIOC_MSM_CPP_SET_CLOCK32:
	{
		struct msm_cpp_clock_settings32_t *clock_settings32 =
			(struct msm_cpp_clock_settings32_t *)kp_ioctl.ioctl_ptr;
		get_user(clock_settings.clock_rate,
			&clock_settings32->clock_rate);
		get_user(clock_settings.avg, &clock_settings32->avg);
		get_user(clock_settings.inst, &clock_settings32->inst);
		kp_ioctl.ioctl_ptr = (void *)&clock_settings;
		if (is_compat_task()) {
			if (kp_ioctl.len != sizeof(
				struct msm_cpp_clock_settings32_t)) {
				mutex_unlock(&cpp_dev->mutex);
				return -EINVAL;
			} else {
				kp_ioctl.len =
					sizeof(struct msm_cpp_clock_settings_t);
			}
		}
		cmd = VIDIOC_MSM_CPP_SET_CLOCK;
		break;
	}
	case VIDIOC_MSM_CPP_QUEUE_BUF32:
	{
		struct msm_pproc_queue_buf_info32_t *u32_queue_buf =
		  (struct msm_pproc_queue_buf_info32_t *)kp_ioctl.ioctl_ptr;

		get_user(k_queue_buf.is_buf_dirty,
			&u32_queue_buf->is_buf_dirty);
		get_user(k_queue_buf.buff_mgr_info.session_id,
			&u32_queue_buf->buff_mgr_info.session_id);
		get_user(k_queue_buf.buff_mgr_info.stream_id,
			&u32_queue_buf->buff_mgr_info.stream_id);
		get_user(k_queue_buf.buff_mgr_info.frame_id,
			&u32_queue_buf->buff_mgr_info.frame_id);
		get_user(k_queue_buf.buff_mgr_info.index,
			&u32_queue_buf->buff_mgr_info.index);
		get_user(k_queue_buf.buff_mgr_info.timestamp.tv_sec,
			&u32_queue_buf->buff_mgr_info.timestamp.tv_sec);
		get_user(k_queue_buf.buff_mgr_info.timestamp.tv_usec,
			&u32_queue_buf->buff_mgr_info.timestamp.tv_usec);

		kp_ioctl.ioctl_ptr = (void *)&k_queue_buf;
		kp_ioctl.len = sizeof(struct msm_pproc_queue_buf_info);
		cmd = VIDIOC_MSM_CPP_QUEUE_BUF;
		break;
	}
	case VIDIOC_MSM_CPP_POP_STREAM_BUFFER32:
	{
		if (kp_ioctl.len != sizeof(struct msm_cpp_frame_info32_t)) {
			mutex_unlock(&cpp_dev->mutex);
			return -EINVAL;
		} else {
			kp_ioctl.len = sizeof(struct msm_cpp_frame_info_t);
		}

		if (copy_from_user(&k32_frame_info,
			(void __user *)kp_ioctl.ioctl_ptr,
			sizeof(k32_frame_info))) {
			mutex_unlock(&cpp_dev->mutex);
			return -EFAULT;
		}

		memset(&k64_frame_info, 0, sizeof(k64_frame_info));
		k64_frame_info.identity = k32_frame_info.identity;
		k64_frame_info.frame_id = k32_frame_info.frame_id;

		kp_ioctl.ioctl_ptr = (void *)&k64_frame_info;
		cmd = VIDIOC_MSM_CPP_POP_STREAM_BUFFER;
		break;
	}
	case VIDIOC_MSM_CPP_IOMMU_ATTACH32:
		cmd = VIDIOC_MSM_CPP_IOMMU_ATTACH;
		break;
	case VIDIOC_MSM_CPP_IOMMU_DETACH32:
		cmd = VIDIOC_MSM_CPP_IOMMU_DETACH;
		break;
	case MSM_SD_NOTIFY_FREEZE:
		break;
	case MSM_SD_UNNOTIFY_FREEZE:
		break;
	case MSM_SD_SHUTDOWN:
		cmd = MSM_SD_SHUTDOWN;
		break;
	default:
		pr_err_ratelimited("%s: unsupported compat type :%x LOAD %lu\n",
				__func__, cmd, VIDIOC_MSM_CPP_LOAD_FIRMWARE);
		break;
	}

	mutex_unlock(&cpp_dev->mutex);
	switch (cmd) {
	case VIDIOC_MSM_CPP_LOAD_FIRMWARE:
	case VIDIOC_MSM_CPP_FLUSH_QUEUE:
	case VIDIOC_MSM_CPP_APPEND_STREAM_BUFF_INFO:
	case VIDIOC_MSM_CPP_ENQUEUE_STREAM_BUFF_INFO:
	case VIDIOC_MSM_CPP_DELETE_STREAM_BUFF:
	case VIDIOC_MSM_CPP_DEQUEUE_STREAM_BUFF_INFO:
	case VIDIOC_MSM_CPP_SET_CLOCK:
	case VIDIOC_MSM_CPP_QUEUE_BUF:
	case VIDIOC_MSM_CPP_POP_STREAM_BUFFER:
	case VIDIOC_MSM_CPP_IOMMU_ATTACH:
	case VIDIOC_MSM_CPP_IOMMU_DETACH:
	case MSM_SD_SHUTDOWN:
		rc = v4l2_subdev_call(sd, core, ioctl, cmd, &kp_ioctl);
		break;
	case VIDIOC_MSM_CPP_GET_HW_INFO:
	case VIDIOC_MSM_CPP_CFG:
	case VIDIOC_MSM_CPP_GET_EVENTPAYLOAD:
	case VIDIOC_MSM_CPP_GET_INST_INFO:
		break;
	case MSM_SD_NOTIFY_FREEZE:
		break;
	case MSM_SD_UNNOTIFY_FREEZE:
		break;
	default:
		pr_err_ratelimited("%s: unsupported compat type :%d\n",
				__func__, cmd);
		break;
	}

	up32_ioctl.id = kp_ioctl.id;
	up32_ioctl.len = kp_ioctl.len;
	up32_ioctl.trans_code = kp_ioctl.trans_code;
	up32_ioctl.ioctl_ptr = ptr_to_compat(kp_ioctl.ioctl_ptr);

	if (copy_to_user((void __user *)up, &up32_ioctl, sizeof(up32_ioctl)))
		return -EFAULT;

	return rc;
}
#endif

struct v4l2_file_operations msm_cpp_v4l2_subdev_fops = {
	.unlocked_ioctl = msm_cpp_subdev_fops_ioctl,
#ifdef CONFIG_COMPAT
	.compat_ioctl32 = msm_cpp_subdev_fops_compat_ioctl,
#endif
};
static  int msm_cpp_update_gdscr_status(struct cpp_device *cpp_dev,
	bool status)
{
	int rc = 0;
	int value = 0;
	if (!cpp_dev) {
		pr_err("%s: cpp device invalid\n", __func__);
		rc = -EINVAL;
		goto end;
	}

	if (cpp_dev->camss_cpp_base) {
		value = msm_camera_io_r(cpp_dev->camss_cpp_base);
		pr_debug("value from camss cpp %x, status %d\n", value, status);
		if (status) {
			value &= CPP_GDSCR_SW_COLLAPSE_ENABLE;
			value |= CPP_GDSCR_HW_CONTROL_ENABLE;
		} else {
			value |= CPP_GDSCR_HW_CONTROL_DISABLE;
			value &= CPP_GDSCR_SW_COLLAPSE_DISABLE;
		}
		pr_debug("value %x after camss cpp mask\n", value);
		msm_camera_io_w(value, cpp_dev->camss_cpp_base);
	}
end:
	return rc;
}
static void msm_cpp_set_vbif_reg_values(struct cpp_device *cpp_dev)
{
	int i, reg, val;
	const u32 *vbif_qos_arr = NULL;
	int vbif_qos_len = 0;
	struct platform_device *pdev;

	pr_debug("%s\n", __func__);
	if (cpp_dev != NULL) {
		pdev = cpp_dev->pdev;
		vbif_qos_arr = of_get_property(pdev->dev.of_node,
					       "qcom,vbif-qos-setting",
						&vbif_qos_len);
		if (!vbif_qos_arr || (vbif_qos_len & 1)) {
			pr_debug("%s: vbif qos setting not found\n",
				 __func__);
			vbif_qos_len = 0;
		}
		vbif_qos_len /= sizeof(u32);
		pr_debug("%s: vbif_qos_len %d\n", __func__, vbif_qos_len);
		if (cpp_dev->vbif_base) {
			for (i = 0; i < vbif_qos_len; i = i+2) {
				reg = be32_to_cpu(vbif_qos_arr[i]);
				val = be32_to_cpu(vbif_qos_arr[i+1]);
				pr_debug("%s: DT: offset %x, val %x\n",
					 __func__, reg, val);
				pr_debug("%s: before write to register 0x%x\n",
					 __func__, msm_camera_io_r(
					 cpp_dev->vbif_base + reg));
				msm_camera_io_w(val, cpp_dev->vbif_base + reg);
				pr_debug("%s: after write to register 0x%x\n",
					 __func__, msm_camera_io_r(
					 cpp_dev->vbif_base + reg));
			}
		}
	}
}

static int cpp_probe(struct platform_device *pdev)
{
	struct cpp_device *cpp_dev;
	int rc = 0;
	CPP_DBG("E");

	cpp_dev = kzalloc(sizeof(struct cpp_device), GFP_KERNEL);
	if (!cpp_dev) {
		pr_err("no enough memory\n");
		return -ENOMEM;
	}

	v4l2_subdev_init(&cpp_dev->msm_sd.sd, &msm_cpp_subdev_ops);
	cpp_dev->msm_sd.sd.internal_ops = &msm_cpp_internal_ops;
	snprintf(cpp_dev->msm_sd.sd.name, ARRAY_SIZE(cpp_dev->msm_sd.sd.name),
		 "cpp");
	cpp_dev->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
	cpp_dev->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_EVENTS;
	v4l2_set_subdevdata(&cpp_dev->msm_sd.sd, cpp_dev);
	platform_set_drvdata(pdev, &cpp_dev->msm_sd.sd);
	mutex_init(&cpp_dev->mutex);
	spin_lock_init(&cpp_dev->tasklet_lock);
	spin_lock_init(&cpp_timer.data.processed_frame_lock);

	cpp_dev->pdev = pdev;

	cpp_dev->camss_cpp_base =
		msm_camera_get_reg_base(pdev, "camss_cpp", true);
	if (!cpp_dev->camss_cpp_base) {
		rc = -ENOMEM;
		pr_err("failed to get camss_cpp_base\n");
		goto camss_cpp_base_failed;
	}

	cpp_dev->base =
		msm_camera_get_reg_base(pdev, "cpp", true);
	if (!cpp_dev->base) {
		rc = -ENOMEM;
		pr_err("failed to get cpp_base\n");
		goto cpp_base_failed;
	}

	cpp_dev->vbif_base =
		msm_camera_get_reg_base(pdev, "cpp_vbif", false);
	if (!cpp_dev->vbif_base) {
		rc = -ENOMEM;
		pr_err("failed to get vbif_base\n");
		goto vbif_base_failed;
	}

	cpp_dev->cpp_hw_base =
		msm_camera_get_reg_base(pdev, "cpp_hw", true);
	if (!cpp_dev->cpp_hw_base) {
		rc = -ENOMEM;
		pr_err("failed to get cpp_hw_base\n");
		goto cpp_hw_base_failed;
	}

	cpp_dev->irq = msm_camera_get_irq(pdev, "cpp");
	if (!cpp_dev->irq) {
		pr_err("%s: no irq resource?\n", __func__);
		rc = -ENODEV;
		goto mem_err;
	}

	rc = msm_camera_get_clk_info(pdev, &cpp_dev->clk_info,
		&cpp_dev->cpp_clk, &cpp_dev->num_clks);
	if (rc < 0) {
		pr_err("%s: failed to get the clocks\n", __func__);
		goto mem_err;
	}

	rc = msm_camera_get_regulator_info(pdev, &cpp_dev->cpp_vdd,
		&cpp_dev->num_reg);
	if (rc < 0) {
		pr_err("%s: failed to get the regulators\n", __func__);
		goto get_reg_err;
	}

	msm_cpp_fetch_dt_params(cpp_dev);

	rc = msm_cpp_read_payload_params_from_dt(cpp_dev);
	if (rc)
		goto cpp_probe_init_error;

	if (cpp_dev->bus_master_flag)
		rc = msm_cpp_init_bandwidth_mgr(cpp_dev);
	else
		rc = msm_isp_init_bandwidth_mgr(ISP_CPP);
	if (rc < 0) {
		pr_err("%s: Bandwidth registration Failed!\n", __func__);
		goto cpp_probe_init_error;
	}

	cpp_dev->state = CPP_STATE_BOOT;
	rc = cpp_init_hardware(cpp_dev);
	if (rc < 0)
		goto cpp_probe_init_error;

	media_entity_init(&cpp_dev->msm_sd.sd.entity, 0, NULL, 0);
	cpp_dev->msm_sd.sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
	cpp_dev->msm_sd.sd.entity.group_id = MSM_CAMERA_SUBDEV_CPP;
	cpp_dev->msm_sd.sd.entity.name = pdev->name;
	cpp_dev->msm_sd.close_seq = MSM_SD_CLOSE_3RD_CATEGORY;
	msm_sd_register(&cpp_dev->msm_sd);
	msm_cam_copy_v4l2_subdev_fops(&msm_cpp_v4l2_subdev_fops);
	msm_cpp_v4l2_subdev_fops.unlocked_ioctl = msm_cpp_subdev_fops_ioctl;
#ifdef CONFIG_COMPAT
	msm_cpp_v4l2_subdev_fops.compat_ioctl32 =
		msm_cpp_subdev_fops_compat_ioctl;
#endif

	cpp_dev->msm_sd.sd.devnode->fops = &msm_cpp_v4l2_subdev_fops;
	cpp_dev->msm_sd.sd.entity.revision = cpp_dev->msm_sd.sd.devnode->num;

	msm_camera_io_w(0x0, cpp_dev->base +
					   MSM_CPP_MICRO_IRQGEN_MASK);
	msm_camera_io_w(0xFFFF, cpp_dev->base +
					   MSM_CPP_MICRO_IRQGEN_CLR);
	msm_camera_io_w(0x80000000, cpp_dev->base + 0xF0);
	cpp_release_hardware(cpp_dev);
	cpp_dev->state = CPP_STATE_OFF;
	msm_cpp_enable_debugfs(cpp_dev);

	msm_queue_init(&cpp_dev->eventData_q, "eventdata");
	msm_queue_init(&cpp_dev->processing_q, "frame");
	INIT_LIST_HEAD(&cpp_dev->tasklet_q);
	tasklet_init(&cpp_dev->cpp_tasklet, msm_cpp_do_tasklet,
		(unsigned long)cpp_dev);
	cpp_dev->timer_wq = create_workqueue("msm_cpp_workqueue");
	cpp_dev->work = kmalloc(sizeof(struct msm_cpp_work_t),
		GFP_KERNEL);

	if (!cpp_dev->work) {
		pr_err("no enough memory\n");
		rc = -ENOMEM;
		goto cpp_probe_init_error;
	}

	INIT_WORK((struct work_struct *)cpp_dev->work, msm_cpp_do_timeout_work);
	cpp_dev->cpp_open_cnt = 0;
	cpp_dev->is_firmware_loaded = 0;
	cpp_dev->iommu_state = CPP_IOMMU_STATE_DETACHED;
	cpp_timer.data.cpp_dev = cpp_dev;
	atomic_set(&cpp_timer.used, 0);
	/* install timer for cpp timeout */
	CPP_DBG("Installing cpp_timer\n");
	setup_timer(&cpp_timer.cpp_timer,
		cpp_timer_callback, (unsigned long)&cpp_timer);
	cpp_dev->fw_name_bin = NULL;
	cpp_dev->max_timeout_trial_cnt = MSM_CPP_MAX_TIMEOUT_TRIAL;
	if (rc == 0)
		CPP_DBG("SUCCESS.");
	else
		CPP_DBG("FAILED.");
	return rc;
cpp_probe_init_error:
	media_entity_cleanup(&cpp_dev->msm_sd.sd.entity);
	msm_sd_unregister(&cpp_dev->msm_sd);
get_reg_err:
	msm_camera_put_clk_info(pdev, &cpp_dev->clk_info, &cpp_dev->cpp_clk,
		cpp_dev->num_clks);
mem_err:
	msm_camera_put_reg_base(pdev, cpp_dev->cpp_hw_base, "cpp_hw", true);
cpp_hw_base_failed:
	msm_camera_put_reg_base(pdev, cpp_dev->vbif_base, "cpp_vbif", false);
vbif_base_failed:
	msm_camera_put_reg_base(pdev, cpp_dev->base, "cpp", true);
cpp_base_failed:
	msm_camera_put_reg_base(pdev, cpp_dev->camss_cpp_base,
		"camss_cpp", true);
camss_cpp_base_failed:
	kfree(cpp_dev);
	return rc;
}

static const struct of_device_id msm_cpp_dt_match[] = {
	{.compatible = "qcom,cpp"},
	{}
};

static int cpp_device_remove(struct platform_device *dev)
{
	struct v4l2_subdev *sd = platform_get_drvdata(dev);
	struct cpp_device  *cpp_dev;
	if (!sd) {
		pr_err("%s: Subdevice is NULL\n", __func__);
		return 0;
	}

	cpp_dev = (struct cpp_device *)v4l2_get_subdevdata(sd);
	if (!cpp_dev) {
		pr_err("%s: cpp device is NULL\n", __func__);
		return 0;
	}
	if (cpp_dev->fw) {
		release_firmware(cpp_dev->fw);
		cpp_dev->fw = NULL;
	}
	if (cpp_dev->bus_master_flag)
		msm_cpp_deinit_bandwidth_mgr(cpp_dev);
	else
		msm_isp_deinit_bandwidth_mgr(ISP_CPP);
	msm_sd_unregister(&cpp_dev->msm_sd);
	msm_camera_put_reg_base(dev, cpp_dev->camss_cpp_base,
		"camss_cpp", true);
	msm_camera_put_reg_base(dev, cpp_dev->base, "cpp", true);
	msm_camera_put_reg_base(dev, cpp_dev->vbif_base, "cpp_vbif", false);
	msm_camera_put_reg_base(dev, cpp_dev->cpp_hw_base, "cpp_hw", true);
	msm_camera_put_regulators(dev, &cpp_dev->cpp_vdd,
		cpp_dev->num_reg);
	msm_camera_put_clk_info(dev, &cpp_dev->clk_info,
		&cpp_dev->cpp_clk, cpp_dev->num_clks);
	msm_camera_unregister_bus_client(CAM_BUS_CLIENT_CPP);
	mutex_destroy(&cpp_dev->mutex);
	kfree(cpp_dev->work);
	destroy_workqueue(cpp_dev->timer_wq);
	kfree(cpp_dev->cpp_clk);
	kfree(cpp_dev);
	return 0;
}

static struct platform_driver cpp_driver = {
	.probe = cpp_probe,
	.remove = cpp_device_remove,
	.driver = {
		.name = MSM_CPP_DRV_NAME,
		.owner = THIS_MODULE,
		.of_match_table = msm_cpp_dt_match,
	},
};

static int __init msm_cpp_init_module(void)
{
	return platform_driver_register(&cpp_driver);
}

static void __exit msm_cpp_exit_module(void)
{
	platform_driver_unregister(&cpp_driver);
}

static int msm_cpp_debugfs_error_s(void *data, u64 val)
{
	pr_err("setting error inducement");
	induce_error = val;
	return 0;
}

DEFINE_SIMPLE_ATTRIBUTE(cpp_debugfs_error, NULL,
	msm_cpp_debugfs_error_s, "%llu\n");

static int msm_cpp_enable_debugfs(struct cpp_device *cpp_dev)
{
	struct dentry *debugfs_base;
	debugfs_base = debugfs_create_dir("msm_cpp", NULL);
	if (!debugfs_base)
		return -ENOMEM;

	if (!debugfs_create_file("error", S_IRUGO | S_IWUSR, debugfs_base,
		(void *)cpp_dev, &cpp_debugfs_error))
		return -ENOMEM;

	return 0;
}

module_init(msm_cpp_init_module);
module_exit(msm_cpp_exit_module);
MODULE_DESCRIPTION("MSM CPP driver");
MODULE_LICENSE("GPL v2");