6 files changed, 1630 insertions, 192 deletions

diff --git a/drivers/media/video/s5p-fimc/Makefile b/drivers/media/video/s5p-fimc/Makefile
index 0d9d54132ecc..7ea1b1403b1e 100644
--- a/drivers/media/video/s5p-fimc/Makefile
+++ b/drivers/media/video/s5p-fimc/Makefile
@@ -1,3 +1,3 @@
 
 obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) := s5p-fimc.o
-s5p-fimc-y := fimc-core.o fimc-reg.o
+s5p-fimc-y := fimc-core.o fimc-reg.o fimc-capture.o
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
new file mode 100644
index 000000000000..e8f13d3e2df1
--- /dev/null
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -0,0 +1,819 @@
+/*
+ * Samsung S5P SoC series camera interface (camera capture) driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
+ * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/bug.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf-core.h>
+#include <media/videobuf-dma-contig.h>
+
+#include "fimc-core.h"
+
+static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc,
+                                            struct s3c_fimc_isp_info *isp_info)
+{
+        struct i2c_adapter *i2c_adap;
+        struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+        struct v4l2_subdev *sd = NULL;
+
+        i2c_adap = i2c_get_adapter(isp_info->i2c_bus_num);
+        if (!i2c_adap)
+                return ERR_PTR(-ENOMEM);
+
+        sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap,
+                                       MODULE_NAME, isp_info->board_info, NULL);
+        if (!sd) {
+                v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n");
+                return NULL;
+        }
+
+        v4l2_info(&vid_cap->v4l2_dev, "subdevice %s registered successfuly\n",
+                isp_info->board_info->type);
+
+        return sd;
+}
+
+static void fimc_subdev_unregister(struct fimc_dev *fimc)
+{
+        struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+        struct i2c_client *client;
+
+        if (vid_cap->input_index < 0)
+                return; /* Subdevice already released or not registered. */
+
+        if (vid_cap->sd) {
+                v4l2_device_unregister_subdev(vid_cap->sd);
+                client = v4l2_get_subdevdata(vid_cap->sd);
+                i2c_unregister_device(client);
+                i2c_put_adapter(client->adapter);
+                vid_cap->sd = NULL;
+        }
+
+        vid_cap->input_index = -1;
+}
+
+/**
+ * fimc_subdev_attach - attach v4l2_subdev to camera host interface
+ *
+ * @fimc: FIMC device information
+ * @index: index to the array of available subdevices,
+ *         -1 for full array search or non negative value
+ *         to select specific subdevice
+ */
+static int fimc_subdev_attach(struct fimc_dev *fimc, int index)
+{
+        struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+        struct s3c_platform_fimc *pdata = fimc->pdata;
+        struct s3c_fimc_isp_info *isp_info;
+        struct v4l2_subdev *sd;
+        int i;
+
+        for (i = 0; i < FIMC_MAX_CAMIF_CLIENTS; ++i) {
+                isp_info = pdata->isp_info[i];
+
+                if (!isp_info || (index >= 0 && i != index))
+                        continue;
+
+                sd = fimc_subdev_register(fimc, isp_info);
+                if (sd) {
+                        vid_cap->sd = sd;
+                        vid_cap->input_index = i;
+
+                        return 0;
+                }
+        }
+
+        vid_cap->input_index = -1;
+        vid_cap->sd = NULL;
+        v4l2_err(&vid_cap->v4l2_dev, "fimc%d: sensor attach failed\n",
+                 fimc->id);
+        return -ENODEV;
+}
+
+static int fimc_isp_subdev_init(struct fimc_dev *fimc, int index)
+{
+        struct s3c_fimc_isp_info *isp_info;
+        int ret;
+
+        ret = fimc_subdev_attach(fimc, index);
+        if (ret)
+                return ret;
+
+        isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index];
+        ret = fimc_hw_set_camera_polarity(fimc, isp_info);
+        if (!ret) {
+                ret = v4l2_subdev_call(fimc->vid_cap.sd, core,
+                                       s_power, 1);
+                if (!ret)
+                        return ret;
+        }
+
+        fimc_subdev_unregister(fimc);
+        err("ISP initialization failed: %d", ret);
+        return ret;
+}
+
+/*
+ * At least one buffer on the pending_buf_q queue is required.
+ * Locking: The caller holds fimc->slock spinlock.
+ */
+int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
+                             struct fimc_vid_buffer *fimc_vb)
+{
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        struct fimc_ctx *ctx = cap->ctx;
+        int ret = 0;
+
+        BUG_ON(!fimc || !fimc_vb);
+
+        ret = fimc_prepare_addr(ctx, fimc_vb, &ctx->d_frame,
+                                &fimc_vb->paddr);
+        if (ret)
+                return ret;
+
+        if (test_bit(ST_CAPT_STREAM, &fimc->state)) {
+                fimc_pending_queue_add(cap, fimc_vb);
+        } else {
+                /* Setup the buffer directly for processing. */
+                int buf_id = (cap->reqbufs_count == 1) ? -1 : cap->buf_index;
+                fimc_hw_set_output_addr(fimc, &fimc_vb->paddr, buf_id);
+
+                fimc_vb->index = cap->buf_index;
+                active_queue_add(cap, fimc_vb);
+
+                if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+                        cap->buf_index = 0;
+        }
+        return ret;
+}
+
+static int fimc_stop_capture(struct fimc_dev *fimc)
+{
+        unsigned long flags;
+        struct fimc_vid_cap *cap;
+        int ret;
+
+        cap = &fimc->vid_cap;
+
+        if (!fimc_capture_active(fimc))
+                return 0;
+
+        spin_lock_irqsave(&fimc->slock, flags);
+        set_bit(ST_CAPT_SHUT, &fimc->state);
+        fimc_deactivate_capture(fimc);
+        spin_unlock_irqrestore(&fimc->slock, flags);
+
+        wait_event_timeout(fimc->irq_queue,
+                           test_bit(ST_CAPT_SHUT, &fimc->state),
+                           FIMC_SHUTDOWN_TIMEOUT);
+
+        ret = v4l2_subdev_call(cap->sd, video, s_stream, 0);
+        if (ret)
+                v4l2_err(&fimc->vid_cap.v4l2_dev, "s_stream(0) failed\n");
+
+        spin_lock_irqsave(&fimc->slock, flags);
+        fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_PEND |
+                        1 << ST_CAPT_STREAM);
+
+        fimc->vid_cap.active_buf_cnt = 0;
+        spin_unlock_irqrestore(&fimc->slock, flags);
+
+        dbg("state: 0x%lx", fimc->state);
+        return 0;
+}
+
+static int fimc_capture_open(struct file *file)
+{
+        struct fimc_dev *fimc = video_drvdata(file);
+        int ret = 0;
+
+        dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+        /* Return if the corresponding video mem2mem node is already opened. */
+        if (fimc_m2m_active(fimc))
+                return -EBUSY;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        if (++fimc->vid_cap.refcnt == 1) {
+                ret = fimc_isp_subdev_init(fimc, -1);
+                if (ret) {
+                        fimc->vid_cap.refcnt--;
+                        ret = -EIO;
+                }
+        }
+
+        file->private_data = fimc->vid_cap.ctx;
+
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_capture_close(struct file *file)
+{
+        struct fimc_dev *fimc = video_drvdata(file);
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
+
+        if (--fimc->vid_cap.refcnt == 0) {
+                fimc_stop_capture(fimc);
+
+                videobuf_stop(&fimc->vid_cap.vbq);
+                videobuf_mmap_free(&fimc->vid_cap.vbq);
+
+                v4l2_err(&fimc->vid_cap.v4l2_dev, "releasing ISP\n");
+                v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
+                fimc_subdev_unregister(fimc);
+        }
+
+        mutex_unlock(&fimc->lock);
+        return 0;
+}
+
+static unsigned int fimc_capture_poll(struct file *file,
+                                      struct poll_table_struct *wait)
+{
+        struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        int ret;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return POLLERR;
+
+        ret = videobuf_poll_stream(file, &cap->vbq, wait);
+        mutex_unlock(&fimc->lock);
+
+        return ret;
+}
+
+static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
+{
+        struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        int ret;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        ret = videobuf_mmap_mapper(&cap->vbq, vma);
+        mutex_unlock(&fimc->lock);
+
+        return ret;
+}
+
+/* video device file operations */
+static const struct v4l2_file_operations fimc_capture_fops = {
+        .owner          = THIS_MODULE,
+        .open           = fimc_capture_open,
+        .release        = fimc_capture_close,
+        .poll           = fimc_capture_poll,
+        .unlocked_ioctl = video_ioctl2,
+        .mmap           = fimc_capture_mmap,
+};
+
+static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
+                                        struct v4l2_capability *cap)
+{
+        struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+
+        strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
+        strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
+        cap->bus_info[0] = 0;
+        cap->version = KERNEL_VERSION(1, 0, 0);
+        cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE;
+
+        return 0;
+}
+
+/* Synchronize formats of the camera interface input and attached  sensor. */
+static int sync_capture_fmt(struct fimc_ctx *ctx)
+{
+        struct fimc_frame *frame = &ctx->s_frame;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct v4l2_mbus_framefmt *fmt = &fimc->vid_cap.fmt;
+        int ret;
+
+        fmt->width  = ctx->d_frame.o_width;
+        fmt->height = ctx->d_frame.o_height;
+
+        ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_mbus_fmt, fmt);
+        if (ret == -ENOIOCTLCMD) {
+                err("s_mbus_fmt failed");
+                return ret;
+        }
+        dbg("w: %d, h: %d, code= %d", fmt->width, fmt->height, fmt->code);
+
+        frame->fmt = find_mbus_format(fmt, FMT_FLAGS_CAM);
+        if (!frame->fmt) {
+                err("fimc source format not found\n");
+                return -EINVAL;
+        }
+
+        frame->f_width  = fmt->width;
+        frame->f_height = fmt->height;
+        frame->width    = fmt->width;
+        frame->height   = fmt->height;
+        frame->o_width  = fmt->width;
+        frame->o_height = fmt->height;
+        frame->offs_h   = 0;
+        frame->offs_v   = 0;
+
+        return 0;
+}
+
+static int fimc_cap_s_fmt(struct file *file, void *priv,
+                             struct v4l2_format *f)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_frame *frame;
+        struct v4l2_pix_format *pix;
+        int ret;
+
+        if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+                return -EINVAL;
+
+        ret = fimc_vidioc_try_fmt(file, priv, f);
+        if (ret)
+                return ret;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        if (fimc_capture_active(fimc)) {
+                ret = -EBUSY;
+                goto sf_unlock;
+        }
+
+        frame = &ctx->d_frame;
+
+        pix = &f->fmt.pix;
+        frame->fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM);
+        if (!frame->fmt) {
+                err("fimc target format not found\n");
+                ret = -EINVAL;
+                goto sf_unlock;
+        }
+
+        /* Output DMA frame pixel size and offsets. */
+        frame->f_width  = pix->bytesperline * 8 / frame->fmt->depth;
+        frame->f_height = pix->height;
+        frame->width    = pix->width;
+        frame->height   = pix->height;
+        frame->o_width  = pix->width;
+        frame->o_height = pix->height;
+        frame->size     = (pix->width * pix->height * frame->fmt->depth) >> 3;
+        frame->offs_h   = 0;
+        frame->offs_v   = 0;
+
+        ret = sync_capture_fmt(ctx);
+
+        ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT);
+
+sf_unlock:
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_enum_input(struct file *file, void *priv,
+                                     struct v4l2_input *i)
+{
+        struct fimc_ctx *ctx = priv;
+        struct s3c_platform_fimc *pldata = ctx->fimc_dev->pdata;
+        struct s3c_fimc_isp_info *isp_info;
+
+        if (i->index >= FIMC_MAX_CAMIF_CLIENTS)
+                return -EINVAL;
+
+        isp_info = pldata->isp_info[i->index];
+        if (isp_info == NULL)
+                return -EINVAL;
+
+        i->type = V4L2_INPUT_TYPE_CAMERA;
+        strncpy(i->name, isp_info->board_info->type, 32);
+        return 0;
+}
+
+static int fimc_cap_s_input(struct file *file, void *priv,
+                                  unsigned int i)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct s3c_platform_fimc *pdata = fimc->pdata;
+        int ret;
+
+        if (fimc_capture_active(ctx->fimc_dev))
+                return -EBUSY;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        if (i >= FIMC_MAX_CAMIF_CLIENTS || !pdata->isp_info[i]) {
+                ret = -EINVAL;
+                goto si_unlock;
+        }
+
+        if (fimc->vid_cap.sd) {
+                ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0);
+                if (ret)
+                        err("s_power failed: %d", ret);
+        }
+
+        /* Release the attached sensor subdevice. */
+        fimc_subdev_unregister(fimc);
+
+        ret = fimc_isp_subdev_init(fimc, i);
+
+si_unlock:
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_g_input(struct file *file, void *priv,
+                                       unsigned int *i)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+        *i = cap->input_index;
+        return 0;
+}
+
+static int fimc_cap_streamon(struct file *file, void *priv,
+                           enum v4l2_buf_type type)
+{
+        struct s3c_fimc_isp_info *isp_info;
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        int ret = -EBUSY;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        if (fimc_capture_active(fimc) || !fimc->vid_cap.sd)
+                goto s_unlock;
+
+        if (!(ctx->state & FIMC_DST_FMT)) {
+                v4l2_err(&fimc->vid_cap.v4l2_dev, "Format is not set\n");
+                ret = -EINVAL;
+                goto s_unlock;
+        }
+
+        ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1);
+        if (ret && ret != -ENOIOCTLCMD)
+                goto s_unlock;
+
+        ret = fimc_prepare_config(ctx, ctx->state);
+        if (ret)
+                goto s_unlock;
+
+        isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index];
+        fimc_hw_set_camera_type(fimc, isp_info);
+        fimc_hw_set_camera_source(fimc, isp_info);
+        fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
+
+        if (ctx->state & FIMC_PARAMS) {
+                ret = fimc_set_scaler_info(ctx);
+                if (ret) {
+                        err("Scaler setup error");
+                        goto s_unlock;
+                }
+                fimc_hw_set_input_path(ctx);
+                fimc_hw_set_scaler(ctx);
+                fimc_hw_set_target_format(ctx);
+                fimc_hw_set_rotation(ctx);
+                fimc_hw_set_effect(ctx);
+        }
+
+        fimc_hw_set_output_path(ctx);
+        fimc_hw_set_out_dma(ctx);
+
+        INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q);
+        INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
+        fimc->vid_cap.active_buf_cnt = 0;
+        fimc->vid_cap.frame_count = 0;
+
+        set_bit(ST_CAPT_PEND, &fimc->state);
+        ret = videobuf_streamon(&fimc->vid_cap.vbq);
+
+s_unlock:
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_streamoff(struct file *file, void *priv,
+                            enum v4l2_buf_type type)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        unsigned long flags;
+        int ret;
+
+        spin_lock_irqsave(&fimc->slock, flags);
+        if (!fimc_capture_running(fimc) && !fimc_capture_pending(fimc)) {
+                spin_unlock_irqrestore(&fimc->slock, flags);
+                dbg("state: 0x%lx", fimc->state);
+                return -EINVAL;
+        }
+        spin_unlock_irqrestore(&fimc->slock, flags);
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        fimc_stop_capture(fimc);
+        ret = videobuf_streamoff(&cap->vbq);
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_reqbufs(struct file *file, void *priv,
+                          struct v4l2_requestbuffers *reqbufs)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        int ret;
+
+        if (fimc_capture_active(ctx->fimc_dev))
+                return -EBUSY;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        ret = videobuf_reqbufs(&cap->vbq, reqbufs);
+        if (!ret)
+                cap->reqbufs_count = reqbufs->count;
+
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_querybuf(struct file *file, void *priv,
+                           struct v4l2_buffer *buf)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
+
+        if (fimc_capture_active(ctx->fimc_dev))
+                return -EBUSY;
+
+        return videobuf_querybuf(&cap->vbq, buf);
+}
+
+static int fimc_cap_qbuf(struct file *file, void *priv,
+                          struct v4l2_buffer *buf)
+{
+        struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        int ret;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        ret = videobuf_qbuf(&cap->vbq, buf);
+
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+static int fimc_cap_dqbuf(struct file *file, void *priv,
+                           struct v4l2_buffer *buf)
+{
+        struct fimc_ctx *ctx = priv;
+        int ret;
+
+        if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
+                return -ERESTARTSYS;
+
+        ret = videobuf_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf,
+                file->f_flags & O_NONBLOCK);
+
+        mutex_unlock(&ctx->fimc_dev->lock);
+        return ret;
+}
+
+static int fimc_cap_s_ctrl(struct file *file, void *priv,
+                         struct v4l2_control *ctrl)
+{
+        struct fimc_ctx *ctx = priv;
+        int ret = -EINVAL;
+
+        if (mutex_lock_interruptible(&ctx->fimc_dev->lock))
+                return -ERESTARTSYS;
+
+        /* Allow any controls but 90/270 rotation while streaming */
+        if (!fimc_capture_active(ctx->fimc_dev) ||
+            ctrl->id != V4L2_CID_ROTATE ||
+            (ctrl->value != 90 && ctrl->value != 270)) {
+                ret = check_ctrl_val(ctx, ctrl);
+                if (!ret) {
+                        ret = fimc_s_ctrl(ctx, ctrl);
+                        if (!ret)
+                                ctx->state |= FIMC_PARAMS;
+                }
+        }
+        if (ret == -EINVAL)
+                ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
+                                       core, s_ctrl, ctrl);
+
+        mutex_unlock(&ctx->fimc_dev->lock);
+        return ret;
+}
+
+static int fimc_cap_s_crop(struct file *file, void *fh,
+                               struct v4l2_crop *cr)
+{
+        struct fimc_frame *f;
+        struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        int ret = -EINVAL;
+
+        if (fimc_capture_active(fimc))
+                return -EBUSY;
+
+        ret = fimc_try_crop(ctx, cr);
+        if (ret)
+                return ret;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        if (!(ctx->state & FIMC_DST_FMT)) {
+                v4l2_err(&fimc->vid_cap.v4l2_dev,
+                         "Capture color format not set\n");
+                goto sc_unlock;
+        }
+
+        f = &ctx->s_frame;
+        /* Check for the pixel scaling ratio when cropping input image. */
+        ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
+        if (ret) {
+                v4l2_err(&fimc->vid_cap.v4l2_dev, "Out of the scaler range");
+        } else {
+                ret = 0;
+                f->offs_h = cr->c.left;
+                f->offs_v = cr->c.top;
+                f->width  = cr->c.width;
+                f->height = cr->c.height;
+        }
+
+sc_unlock:
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
+
+
+static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
+        .vidioc_querycap                = fimc_vidioc_querycap_capture,
+
+        .vidioc_enum_fmt_vid_cap        = fimc_vidioc_enum_fmt,
+        .vidioc_try_fmt_vid_cap         = fimc_vidioc_try_fmt,
+        .vidioc_s_fmt_vid_cap           = fimc_cap_s_fmt,
+        .vidioc_g_fmt_vid_cap           = fimc_vidioc_g_fmt,
+
+        .vidioc_reqbufs                 = fimc_cap_reqbufs,
+        .vidioc_querybuf                = fimc_cap_querybuf,
+
+        .vidioc_qbuf                    = fimc_cap_qbuf,
+        .vidioc_dqbuf                   = fimc_cap_dqbuf,
+
+        .vidioc_streamon                = fimc_cap_streamon,
+        .vidioc_streamoff               = fimc_cap_streamoff,
+
+        .vidioc_queryctrl               = fimc_vidioc_queryctrl,
+        .vidioc_g_ctrl                  = fimc_vidioc_g_ctrl,
+        .vidioc_s_ctrl                  = fimc_cap_s_ctrl,
+
+        .vidioc_g_crop                  = fimc_vidioc_g_crop,
+        .vidioc_s_crop                  = fimc_cap_s_crop,
+        .vidioc_cropcap                 = fimc_vidioc_cropcap,
+
+        .vidioc_enum_input              = fimc_cap_enum_input,
+        .vidioc_s_input                 = fimc_cap_s_input,
+        .vidioc_g_input                 = fimc_cap_g_input,
+};
+
+int fimc_register_capture_device(struct fimc_dev *fimc)
+{
+        struct v4l2_device *v4l2_dev = &fimc->vid_cap.v4l2_dev;
+        struct video_device *vfd;
+        struct fimc_vid_cap *vid_cap;
+        struct fimc_ctx *ctx;
+        struct v4l2_format f;
+        int ret;
+
+        ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
+        if (!ctx)
+                return -ENOMEM;
+
+        ctx->fimc_dev    = fimc;
+        ctx->in_path     = FIMC_CAMERA;
+        ctx->out_path    = FIMC_DMA;
+        ctx->state       = FIMC_CTX_CAP;
+
+        f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24;
+        ctx->d_frame.fmt = find_format(&f, FMT_FLAGS_M2M);
+
+        if (!v4l2_dev->name[0])
+                snprintf(v4l2_dev->name, sizeof(v4l2_dev->name),
+                         "%s.capture", dev_name(&fimc->pdev->dev));
+
+        ret = v4l2_device_register(NULL, v4l2_dev);
+        if (ret)
+                goto err_info;
+
+        vfd = video_device_alloc();
+        if (!vfd) {
+                v4l2_err(v4l2_dev, "Failed to allocate video device\n");
+                goto err_v4l2_reg;
+        }
+
+        snprintf(vfd->name, sizeof(vfd->name), "%s:cap",
+                 dev_name(&fimc->pdev->dev));
+
+        vfd->fops       = &fimc_capture_fops;
+        vfd->ioctl_ops  = &fimc_capture_ioctl_ops;
+        vfd->minor      = -1;
+        vfd->release    = video_device_release;
+        video_set_drvdata(vfd, fimc);
+
+        vid_cap = &fimc->vid_cap;
+        vid_cap->vfd = vfd;
+        vid_cap->active_buf_cnt = 0;
+        vid_cap->reqbufs_count  = 0;
+        vid_cap->refcnt = 0;
+        /* The default color format for image sensor. */
+        vid_cap->fmt.code = V4L2_MBUS_FMT_YUYV8_2X8;
+
+        INIT_LIST_HEAD(&vid_cap->pending_buf_q);
+        INIT_LIST_HEAD(&vid_cap->active_buf_q);
+        spin_lock_init(&ctx->slock);
+        vid_cap->ctx = ctx;
+
+        videobuf_queue_dma_contig_init(&vid_cap->vbq, &fimc_qops,
+                vid_cap->v4l2_dev.dev, &fimc->irqlock,
+                V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
+                sizeof(struct fimc_vid_buffer), (void *)ctx);
+
+        ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+        if (ret) {
+                v4l2_err(v4l2_dev, "Failed to register video device\n");
+                goto err_vd_reg;
+        }
+
+        v4l2_info(v4l2_dev,
+                  "FIMC capture driver registered as /dev/video%d\n",
+                  vfd->num);
+
+        return 0;
+
+err_vd_reg:
+        video_device_release(vfd);
+err_v4l2_reg:
+        v4l2_device_unregister(v4l2_dev);
+err_info:
+        dev_err(&fimc->pdev->dev, "failed to install\n");
+        return ret;
+}
+
+void fimc_unregister_capture_device(struct fimc_dev *fimc)
+{
+        struct fimc_vid_cap *capture = &fimc->vid_cap;
+
+        if (capture->vfd)
+                video_unregister_device(capture->vfd);
+
+        kfree(capture->ctx);
+}
diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c
index 23cc054bd7b1..5168a9a5d821 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.c
+++ b/drivers/media/video/s5p-fimc/fimc-core.c
@@ -1,7 +1,7 @@
 /*
  * S5P camera interface (video postprocessor) driver
  *
- * Copyright (c) 2010 Samsung Electronics
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
  *
  * Sylwester Nawrocki, <s.nawrocki@samsung.com>
  *
@@ -38,85 +38,102 @@ static struct fimc_fmt fimc_formats[] = {
                 .depth  = 16,
                 .color  = S5P_FIMC_RGB565,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_BE,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "BGR666",
                 .fourcc = V4L2_PIX_FMT_BGR666,
                 .depth  = 32,
                 .color  = S5P_FIMC_RGB666,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name = "XRGB-8-8-8-8, 24 bpp",
                 .fourcc = V4L2_PIX_FMT_RGB24,
                 .depth = 32,
                 .color  = S5P_FIMC_RGB888,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "YUV 4:2:2 packed, YCbYCr",
                 .fourcc = V4L2_PIX_FMT_YUYV,
                 .depth  = 16,
                 .color  = S5P_FIMC_YCBYCR422,
                 .buff_cnt = 1,
-                .planes_cnt = 1
-                }, {
+                .planes_cnt = 1,
+                .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
+                .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
+        }, {
                 .name   = "YUV 4:2:2 packed, CbYCrY",
                 .fourcc = V4L2_PIX_FMT_UYVY,
                 .depth  = 16,
                 .color  = S5P_FIMC_CBYCRY422,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
+                .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
         }, {
                 .name   = "YUV 4:2:2 packed, CrYCbY",
                 .fourcc = V4L2_PIX_FMT_VYUY,
                 .depth  = 16,
                 .color  = S5P_FIMC_CRYCBY422,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
+                .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
         }, {
                 .name   = "YUV 4:2:2 packed, YCrYCb",
                 .fourcc = V4L2_PIX_FMT_YVYU,
                 .depth  = 16,
                 .color  = S5P_FIMC_YCRYCB422,
                 .buff_cnt = 1,
-                .planes_cnt = 1
+                .planes_cnt = 1,
+                .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
+                .flags = FMT_FLAGS_M2M | FMT_FLAGS_CAM,
         }, {
                 .name   = "YUV 4:2:2 planar, Y/Cb/Cr",
                 .fourcc = V4L2_PIX_FMT_YUV422P,
                 .depth  = 12,
                 .color  = S5P_FIMC_YCBCR422,
                 .buff_cnt = 1,
-                .planes_cnt = 3
+                .planes_cnt = 3,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "YUV 4:2:2 planar, Y/CbCr",
                 .fourcc = V4L2_PIX_FMT_NV16,
                 .depth  = 16,
                 .color  = S5P_FIMC_YCBCR422,
                 .buff_cnt = 1,
-                .planes_cnt = 2
+                .planes_cnt = 2,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "YUV 4:2:2 planar, Y/CrCb",
                 .fourcc = V4L2_PIX_FMT_NV61,
                 .depth  = 16,
                 .color  = S5P_FIMC_RGB565,
                 .buff_cnt = 1,
-                .planes_cnt = 2
+                .planes_cnt = 2,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "YUV 4:2:0 planar, YCbCr",
                 .fourcc = V4L2_PIX_FMT_YUV420,
                 .depth  = 12,
                 .color  = S5P_FIMC_YCBCR420,
                 .buff_cnt = 1,
-                .planes_cnt = 3
+                .planes_cnt = 3,
+                .flags = FMT_FLAGS_M2M,
         }, {
                 .name   = "YUV 4:2:0 planar, Y/CbCr",
                 .fourcc = V4L2_PIX_FMT_NV12,
                 .depth  = 12,
                 .color  = S5P_FIMC_YCBCR420,
                 .buff_cnt = 1,
-                .planes_cnt = 2
-        }
+                .planes_cnt = 2,
+                .flags = FMT_FLAGS_M2M,
+        },
 };
 
 static struct v4l2_queryctrl fimc_ctrls[] = {
@@ -156,7 +173,7 @@ static struct v4l2_queryctrl *get_ctrl(int id)
         return NULL;
 }
 
-static int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f)
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f)
 {
         if (r->width > f->width) {
                 if (f->width > (r->width * SCALER_MAX_HRATIO))
@@ -199,7 +216,7 @@ static int fimc_get_scaler_factor(u32 src, u32 tar, u32 *ratio, u32 *shift)
         return 0;
 }
 
-static int fimc_set_scaler_info(struct fimc_ctx *ctx)
+int fimc_set_scaler_info(struct fimc_ctx *ctx)
 {
         struct fimc_scaler *sc = &ctx->scaler;
         struct fimc_frame *s_frame = &ctx->s_frame;
@@ -259,6 +276,51 @@ static int fimc_set_scaler_info(struct fimc_ctx *ctx)
         return 0;
 }
 
+static void fimc_capture_handler(struct fimc_dev *fimc)
+{
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        struct fimc_vid_buffer *v_buf = NULL;
+
+        if (!list_empty(&cap->active_buf_q)) {
+                v_buf = active_queue_pop(cap);
+                fimc_buf_finish(fimc, v_buf);
+        }
+
+        if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
+                wake_up(&fimc->irq_queue);
+                return;
+        }
+
+        if (!list_empty(&cap->pending_buf_q)) {
+
+                v_buf = pending_queue_pop(cap);
+                fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
+                v_buf->index = cap->buf_index;
+
+                dbg("hw ptr: %d, sw ptr: %d",
+                    fimc_hw_get_frame_index(fimc), cap->buf_index);
+
+                spin_lock(&fimc->irqlock);
+                v_buf->vb.state = VIDEOBUF_ACTIVE;
+                spin_unlock(&fimc->irqlock);
+
+                /* Move the buffer to the capture active queue */
+                active_queue_add(cap, v_buf);
+
+                dbg("next frame: %d, done frame: %d",
+                    fimc_hw_get_frame_index(fimc), v_buf->index);
+
+                if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
+                        cap->buf_index = 0;
+
+        } else if (test_and_clear_bit(ST_CAPT_STREAM, &fimc->state) &&
+                   cap->active_buf_cnt <= 1) {
+                fimc_deactivate_capture(fimc);
+        }
+
+        dbg("frame: %d, active_buf_cnt= %d",
+            fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
+}
 
 static irqreturn_t fimc_isr(int irq, void *priv)
 {
@@ -285,6 +347,16 @@ static irqreturn_t fimc_isr(int irq, void *priv)
                         spin_unlock(&fimc->irqlock);
                         v4l2_m2m_job_finish(fimc->m2m.m2m_dev, ctx->m2m_ctx);
                 }
+                goto isr_unlock;
+
+        }
+
+        if (test_bit(ST_CAPT_RUN, &fimc->state))
+                fimc_capture_handler(fimc);
+
+        if (test_and_clear_bit(ST_CAPT_PEND, &fimc->state)) {
+                set_bit(ST_CAPT_RUN, &fimc->state);
+                wake_up(&fimc->irq_queue);
         }
 
 isr_unlock:
@@ -424,7 +496,7 @@ static void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f)
  *
  * Return: 0 if dimensions are valid or non zero otherwise.
  */
-static int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags)
 {
         struct fimc_frame *s_frame, *d_frame;
         struct fimc_vid_buffer *buf = NULL;
@@ -513,9 +585,9 @@ static void fimc_dma_run(void *priv)
         if (ctx->state & FIMC_PARAMS)
                 fimc_hw_set_out_dma(ctx);
 
-        ctx->state = 0;
         fimc_activate_capture(ctx);
 
+        ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP);
         fimc_hw_activate_input_dma(fimc, true);
 
 dma_unlock:
@@ -598,10 +670,31 @@ static void fimc_buf_queue(struct videobuf_queue *vq,
                                   struct videobuf_buffer *vb)
 {
         struct fimc_ctx *ctx = vq->priv_data;
-        v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        struct fimc_vid_cap *cap = &fimc->vid_cap;
+        unsigned long flags;
+
+        dbg("ctx: %p, ctx->state: 0x%x", ctx, ctx->state);
+
+        if ((ctx->state & FIMC_CTX_M2M) && ctx->m2m_ctx) {
+                v4l2_m2m_buf_queue(ctx->m2m_ctx, vq, vb);
+        } else if (ctx->state & FIMC_CTX_CAP) {
+                spin_lock_irqsave(&fimc->slock, flags);
+                fimc_vid_cap_buf_queue(fimc, (struct fimc_vid_buffer *)vb);
+
+                dbg("fimc->cap.active_buf_cnt: %d",
+                    fimc->vid_cap.active_buf_cnt);
+
+                if (cap->active_buf_cnt >= cap->reqbufs_count ||
+                   cap->active_buf_cnt >= FIMC_MAX_OUT_BUFS) {
+                        if (!test_and_set_bit(ST_CAPT_STREAM, &fimc->state))
+                                fimc_activate_capture(ctx);
+                }
+                spin_unlock_irqrestore(&fimc->slock, flags);
+        }
 }
 
-static struct videobuf_queue_ops fimc_qops = {
+struct videobuf_queue_ops fimc_qops = {
         .buf_setup      = fimc_buf_setup,
         .buf_prepare    = fimc_buf_prepare,
         .buf_queue      = fimc_buf_queue,
@@ -624,7 +717,7 @@ static int fimc_m2m_querycap(struct file *file, void *priv,
         return 0;
 }
 
-static int fimc_m2m_enum_fmt(struct file *file, void *priv,
+int fimc_vidioc_enum_fmt(struct file *file, void *priv,
                                 struct v4l2_fmtdesc *f)
 {
         struct fimc_fmt *fmt;
@@ -635,109 +728,139 @@ static int fimc_m2m_enum_fmt(struct file *file, void *priv,
         fmt = &fimc_formats[f->index];
         strncpy(f->description, fmt->name, sizeof(f->description) - 1);
         f->pixelformat = fmt->fourcc;
+
         return 0;
 }
 
-static int fimc_m2m_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+int fimc_vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
         struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
         struct fimc_frame *frame;
 
         frame = ctx_get_frame(ctx, f->type);
         if (IS_ERR(frame))
                 return PTR_ERR(frame);
 
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
         f->fmt.pix.width        = frame->width;
         f->fmt.pix.height       = frame->height;
         f->fmt.pix.field        = V4L2_FIELD_NONE;
         f->fmt.pix.pixelformat  = frame->fmt->fourcc;
 
+        mutex_unlock(&fimc->lock);
         return 0;
 }
 
-static struct fimc_fmt *find_format(struct v4l2_format *f)
+struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask)
 {
         struct fimc_fmt *fmt;
         unsigned int i;
 
         for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
                 fmt = &fimc_formats[i];
-                if (fmt->fourcc == f->fmt.pix.pixelformat)
+                if (fmt->fourcc == f->fmt.pix.pixelformat &&
+                   (fmt->flags & mask))
                         break;
         }
-        if (i == ARRAY_SIZE(fimc_formats))
-                return NULL;
 
-        return fmt;
+        return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
 }
 
-static int fimc_m2m_try_fmt(struct file *file, void *priv,
-                             struct v4l2_format *f)
+struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
+                                  unsigned int mask)
 {
         struct fimc_fmt *fmt;
-        u32 max_width, max_height, mod_x, mod_y;
+        unsigned int i;
+
+        for (i = 0; i < ARRAY_SIZE(fimc_formats); ++i) {
+                fmt = &fimc_formats[i];
+                if (fmt->mbus_code == f->code && (fmt->flags & mask))
+                        break;
+        }
+
+        return (i == ARRAY_SIZE(fimc_formats)) ? NULL : fmt;
+}
+
+
+int fimc_vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
         struct fimc_ctx *ctx = priv;
         struct fimc_dev *fimc = ctx->fimc_dev;
-        struct v4l2_pix_format *pix = &f->fmt.pix;
         struct samsung_fimc_variant *variant = fimc->variant;
+        struct v4l2_pix_format *pix = &f->fmt.pix;
+        struct fimc_fmt *fmt;
+        u32 max_width, mod_x, mod_y, mask;
+        int ret = -EINVAL, is_output = 0;
 
-        fmt = find_format(f);
-        if (!fmt) {
-                v4l2_err(&fimc->m2m.v4l2_dev,
-                         "Fourcc format (0x%X) invalid.\n",  pix->pixelformat);
+        if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+                if (ctx->state & FIMC_CTX_CAP)
+                        return -EINVAL;
+                is_output = 1;
+        } else if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
                 return -EINVAL;
         }
 
+        dbg("w: %d, h: %d, bpl: %d",
+            pix->width, pix->height, pix->bytesperline);
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        mask = is_output ? FMT_FLAGS_M2M : FMT_FLAGS_M2M | FMT_FLAGS_CAM;
+        fmt = find_format(f, mask);
+        if (!fmt) {
+                v4l2_err(&fimc->m2m.v4l2_dev, "Fourcc format (0x%X) invalid.\n",
+                         pix->pixelformat);
+                goto tf_out;
+        }
+
         if (pix->field == V4L2_FIELD_ANY)
                 pix->field = V4L2_FIELD_NONE;
         else if (V4L2_FIELD_NONE != pix->field)
-                return -EINVAL;
+                goto tf_out;
 
-        if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+        if (is_output) {
                 max_width = variant->scaler_dis_w;
-                max_height = variant->scaler_dis_w;
-                mod_x = variant->min_inp_pixsize;
-                mod_y = variant->min_inp_pixsize;
-        } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-                max_width = variant->out_rot_dis_w;
-                max_height = variant->out_rot_dis_w;
-                mod_x = variant->min_out_pixsize;
-                mod_y = variant->min_out_pixsize;
+                mod_x = ffs(variant->min_inp_pixsize) - 1;
         } else {
-                err("Wrong stream type (%d)", f->type);
-                return -EINVAL;
+                max_width = variant->out_rot_dis_w;
+                mod_x = ffs(variant->min_out_pixsize) - 1;
         }
 
-        dbg("max_w= %d, max_h= %d", max_width, max_height);
-
-        if (pix->height > max_height)
-                pix->height = max_height;
-        if (pix->width > max_width)
-                pix->width = max_width;
-
         if (tiled_fmt(fmt)) {
-                mod_x = 64; /* 64x32 tile */
-                mod_y = 32;
+                mod_x = 6; /* 64 x 32 pixels tile */
+                mod_y = 5;
+        } else {
+                if (fimc->id == 1 && fimc->variant->pix_hoff)
+                        mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
+                else
+                        mod_y = mod_x;
         }
 
-        dbg("mod_x= 0x%X, mod_y= 0x%X", mod_x, mod_y);
+        dbg("mod_x: %d, mod_y: %d, max_w: %d", mod_x, mod_y, max_width);
 
-        pix->width = (pix->width == 0) ? mod_x : ALIGN(pix->width, mod_x);
-        pix->height = (pix->height == 0) ? mod_y : ALIGN(pix->height, mod_y);
+        v4l_bound_align_image(&pix->width, 16, max_width, mod_x,
+                &pix->height, 8, variant->scaler_dis_w, mod_y, 0);
 
         if (pix->bytesperline == 0 ||
-            pix->bytesperline * 8 / fmt->depth > pix->width)
+            (pix->bytesperline * 8 / fmt->depth) > pix->width)
                 pix->bytesperline = (pix->width * fmt->depth) >> 3;
 
         if (pix->sizeimage == 0)
                 pix->sizeimage = pix->height * pix->bytesperline;
 
-        dbg("pix->bytesperline= %d, fmt->depth= %d",
-            pix->bytesperline, fmt->depth);
+        dbg("w: %d, h: %d, bpl: %d, depth: %d",
+            pix->width, pix->height, pix->bytesperline, fmt->depth);
 
-        return 0;
-}
+        ret = 0;
 
+tf_out:
+        mutex_unlock(&fimc->lock);
+        return ret;
+}
 
 static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
@@ -750,9 +873,7 @@ static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
         unsigned long flags;
         int ret = 0;
 
-        BUG_ON(!ctx);
-
-        ret = fimc_m2m_try_fmt(file, priv, f);
+        ret = fimc_vidioc_try_fmt(file, priv, f);
         if (ret)
                 return ret;
 
@@ -785,7 +906,7 @@ static int fimc_m2m_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
         spin_unlock_irqrestore(&ctx->slock, flags);
 
         pix = &f->fmt.pix;
-        frame->fmt = find_format(f);
+        frame->fmt = find_format(f, FMT_FLAGS_M2M);
         if (!frame->fmt) {
                 ret = -EINVAL;
                 goto sf_out;
@@ -857,21 +978,33 @@ static int fimc_m2m_streamoff(struct file *file, void *priv,
         return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
 }
 
-int fimc_m2m_queryctrl(struct file *file, void *priv,
+int fimc_vidioc_queryctrl(struct file *file, void *priv,
                             struct v4l2_queryctrl *qc)
 {
+        struct fimc_ctx *ctx = priv;
         struct v4l2_queryctrl *c;
+
         c = get_ctrl(qc->id);
-        if (!c)
-                return -EINVAL;
-        *qc = *c;
-        return 0;
+        if (c) {
+                *qc = *c;
+                return 0;
+        }
+
+        if (ctx->state & FIMC_CTX_CAP)
+                return v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd,
+                                        core, queryctrl, qc);
+        return -EINVAL;
 }
 
-int fimc_m2m_g_ctrl(struct file *file, void *priv,
+int fimc_vidioc_g_ctrl(struct file *file, void *priv,
                          struct v4l2_control *ctrl)
 {
         struct fimc_ctx *ctx = priv;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        int ret = 0;
+
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
 
         switch (ctrl->id) {
         case V4L2_CID_HFLIP:
@@ -884,15 +1017,22 @@ int fimc_m2m_g_ctrl(struct file *file, void *priv,
                 ctrl->value = ctx->rotation;
                 break;
         default:
-                v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
-                return -EINVAL;
+                if (ctx->state & FIMC_CTX_CAP) {
+                        ret = v4l2_subdev_call(fimc->vid_cap.sd, core,
+                                       g_ctrl, ctrl);
+                } else {
+                        v4l2_err(&fimc->m2m.v4l2_dev,
+                                 "Invalid control\n");
+                        ret = -EINVAL;
+                }
         }
         dbg("ctrl->value= %d", ctrl->value);
-        return 0;
+
+        mutex_unlock(&fimc->lock);
+        return ret;
 }
 
-static int check_ctrl_val(struct fimc_ctx *ctx,
-                          struct v4l2_control *ctrl)
+int check_ctrl_val(struct fimc_ctx *ctx,  struct v4l2_control *ctrl)
 {
         struct v4l2_queryctrl *c;
         c = get_ctrl(ctrl->id);
@@ -909,22 +1049,23 @@ static int check_ctrl_val(struct fimc_ctx *ctx,
         return 0;
 }
 
-int fimc_m2m_s_ctrl(struct file *file, void *priv,
-                         struct v4l2_control *ctrl)
+int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl)
 {
-        struct fimc_ctx *ctx = priv;
         struct samsung_fimc_variant *variant = ctx->fimc_dev->variant;
+        struct fimc_dev *fimc = ctx->fimc_dev;
         unsigned long flags;
-        int ret = 0;
 
-        ret = check_ctrl_val(ctx, ctrl);
-        if (ret)
-                return ret;
+        if (ctx->rotation != 0 &&
+            (ctrl->id == V4L2_CID_HFLIP || ctrl->id == V4L2_CID_VFLIP)) {
+                v4l2_err(&fimc->m2m.v4l2_dev,
+                         "Simultaneous flip and rotation is not supported\n");
+                return -EINVAL;
+        }
+
+        spin_lock_irqsave(&ctx->slock, flags);
 
         switch (ctrl->id) {
         case V4L2_CID_HFLIP:
-                if (ctx->rotation != 0)
-                        return 0;
                 if (ctrl->value)
                         ctx->flip |= FLIP_X_AXIS;
                 else
@@ -932,8 +1073,6 @@ int fimc_m2m_s_ctrl(struct file *file, void *priv,
                 break;
 
         case V4L2_CID_VFLIP:
-                if (ctx->rotation != 0)
-                        return 0;
                 if (ctrl->value)
                         ctx->flip |= FLIP_Y_AXIS;
                 else
@@ -941,77 +1080,95 @@ int fimc_m2m_s_ctrl(struct file *file, void *priv,
                 break;
 
         case V4L2_CID_ROTATE:
-                if (ctrl->value == 90 || ctrl->value == 270) {
-                        if (ctx->out_path == FIMC_LCDFIFO &&
-                            !variant->has_inp_rot) {
-                                return -EINVAL;
-                        } else if (ctx->in_path == FIMC_DMA &&
-                                   !variant->has_out_rot) {
-                                return -EINVAL;
-                        }
+                /* Check for the output rotator availability */
+                if ((ctrl->value == 90 || ctrl->value == 270) &&
+                    (ctx->in_path == FIMC_DMA && !variant->has_out_rot)) {
+                        spin_unlock_irqrestore(&ctx->slock, flags);
+                        return -EINVAL;
+                } else {
+                        ctx->rotation = ctrl->value;
                 }
-                ctx->rotation = ctrl->value;
-                if (ctrl->value == 180)
-                        ctx->flip = FLIP_XY_AXIS;
                 break;
 
         default:
-                v4l2_err(&ctx->fimc_dev->m2m.v4l2_dev, "Invalid control\n");
+                spin_unlock_irqrestore(&ctx->slock, flags);
+                v4l2_err(&fimc->m2m.v4l2_dev, "Invalid control\n");
                 return -EINVAL;
         }
-        spin_lock_irqsave(&ctx->slock, flags);
         ctx->state |= FIMC_PARAMS;
         spin_unlock_irqrestore(&ctx->slock, flags);
+
         return 0;
 }
 
+static int fimc_m2m_s_ctrl(struct file *file, void *priv,
+                         struct v4l2_control *ctrl)
+{
+        struct fimc_ctx *ctx = priv;
+        int ret = 0;
+
+        ret = check_ctrl_val(ctx, ctrl);
+        if (ret)
+                return ret;
+
+        ret = fimc_s_ctrl(ctx, ctrl);
+        return 0;
+}
 
-static int fimc_m2m_cropcap(struct file *file, void *fh,
-                             struct v4l2_cropcap *cr)
+int fimc_vidioc_cropcap(struct file *file, void *fh,
+                        struct v4l2_cropcap *cr)
 {
         struct fimc_frame *frame;
         struct fimc_ctx *ctx = fh;
+        struct fimc_dev *fimc = ctx->fimc_dev;
 
         frame = ctx_get_frame(ctx, cr->type);
         if (IS_ERR(frame))
                 return PTR_ERR(frame);
 
-        cr->bounds.left = 0;
-        cr->bounds.top = 0;
-        cr->bounds.width = frame->f_width;
-        cr->bounds.height = frame->f_height;
-        cr->defrect.left = frame->offs_h;
-        cr->defrect.top = frame->offs_v;
-        cr->defrect.width = frame->o_width;
-        cr->defrect.height = frame->o_height;
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        cr->bounds.left         = 0;
+        cr->bounds.top          = 0;
+        cr->bounds.width        = frame->f_width;
+        cr->bounds.height       = frame->f_height;
+        cr->defrect             = cr->bounds;
+
+        mutex_unlock(&fimc->lock);
         return 0;
 }
 
-static int fimc_m2m_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+int fimc_vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
 {
         struct fimc_frame *frame;
         struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
 
         frame = ctx_get_frame(ctx, cr->type);
         if (IS_ERR(frame))
                 return PTR_ERR(frame);
 
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
         cr->c.left = frame->offs_h;
         cr->c.top = frame->offs_v;
         cr->c.width = frame->width;
         cr->c.height = frame->height;
 
+        mutex_unlock(&fimc->lock);
         return 0;
 }
 
-static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr)
 {
-        struct fimc_ctx *ctx = file->private_data;
         struct fimc_dev *fimc = ctx->fimc_dev;
-        unsigned long flags;
         struct fimc_frame *f;
-        u32 min_size;
-        int ret = 0;
+        u32 min_size, halign;
+
+        f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
+                &ctx->s_frame : &ctx->d_frame;
 
         if (cr->c.top < 0 || cr->c.left < 0) {
                 v4l2_err(&fimc->m2m.v4l2_dev,
@@ -1019,66 +1176,98 @@ static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
                 return -EINVAL;
         }
 
-        if (cr->c.width  <= 0 || cr->c.height <= 0) {
-                v4l2_err(&fimc->m2m.v4l2_dev,
-                        "crop width and height must be greater than 0\n");
-                return -EINVAL;
-        }
-
         f = ctx_get_frame(ctx, cr->type);
         if (IS_ERR(f))
                 return PTR_ERR(f);
 
-        /* Adjust to required pixel boundary. */
-        min_size = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
-                fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
+        min_size = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+                ? fimc->variant->min_inp_pixsize
+                : fimc->variant->min_out_pixsize;
 
-        cr->c.width = round_down(cr->c.width, min_size);
-        cr->c.height = round_down(cr->c.height, min_size);
-        cr->c.left = round_down(cr->c.left + 1, min_size);
-        cr->c.top = round_down(cr->c.top + 1, min_size);
-
-        if ((cr->c.left + cr->c.width > f->o_width)
-                || (cr->c.top + cr->c.height > f->o_height)) {
-                v4l2_err(&fimc->m2m.v4l2_dev, "Error in S_CROP params\n");
-                return -EINVAL;
+        if (ctx->state & FIMC_CTX_M2M) {
+                if (fimc->id == 1 && fimc->variant->pix_hoff)
+                        halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
+                else
+                        halign = ffs(min_size) - 1;
+        /* there are more strict aligment requirements at camera interface */
+        } else {
+                min_size = 16;
+                halign = 4;
         }
 
+        v4l_bound_align_image(&cr->c.width, min_size, f->o_width,
+                              ffs(min_size) - 1,
+                              &cr->c.height, min_size, f->o_height,
+                              halign, 64/(ALIGN(f->fmt->depth, 8)));
+
+        /* adjust left/top if cropping rectangle is out of bounds */
+        if (cr->c.left + cr->c.width > f->o_width)
+                cr->c.left = f->o_width - cr->c.width;
+        if (cr->c.top + cr->c.height > f->o_height)
+                cr->c.top = f->o_height - cr->c.height;
+
+        cr->c.left = round_down(cr->c.left, min_size);
+        cr->c.top  = round_down(cr->c.top,
+                                ctx->state & FIMC_CTX_M2M ? 8 : 16);
+
+        dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
+            cr->c.left, cr->c.top, cr->c.width, cr->c.height,
+            f->f_width, f->f_height);
+
+        return 0;
+}
+
+
+static int fimc_m2m_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
+{
+        struct fimc_ctx *ctx = file->private_data;
+        struct fimc_dev *fimc = ctx->fimc_dev;
+        unsigned long flags;
+        struct fimc_frame *f;
+        int ret;
+
+        ret = fimc_try_crop(ctx, cr);
+        if (ret)
+                return ret;
+
+        f = (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
+                &ctx->s_frame : &ctx->d_frame;
+
         spin_lock_irqsave(&ctx->slock, flags);
-        if ((ctx->state & FIMC_SRC_FMT) && (ctx->state & FIMC_DST_FMT)) {
-                /* Check for the pixel scaling ratio when cropping input img. */
+        if (~ctx->state & (FIMC_SRC_FMT | FIMC_DST_FMT)) {
+                /* Check to see if scaling ratio is within supported range */
                 if (cr->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
                         ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame);
-                else if (cr->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+                else
                         ret = fimc_check_scaler_ratio(&cr->c, &ctx->s_frame);
-
                 if (ret) {
                         spin_unlock_irqrestore(&ctx->slock, flags);
-                        v4l2_err(&fimc->m2m.v4l2_dev,  "Out of scaler range");
+                        v4l2_err(&fimc->m2m.v4l2_dev, "Out of scaler range");
                         return -EINVAL;
                 }
         }
         ctx->state |= FIMC_PARAMS;
-        spin_unlock_irqrestore(&ctx->slock, flags);
 
         f->offs_h = cr->c.left;
         f->offs_v = cr->c.top;
-        f->width = cr->c.width;
+        f->width  = cr->c.width;
         f->height = cr->c.height;
+
+        spin_unlock_irqrestore(&ctx->slock, flags);
         return 0;
 }
 
 static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
         .vidioc_querycap                = fimc_m2m_querycap,
 
-        .vidioc_enum_fmt_vid_cap        = fimc_m2m_enum_fmt,
-        .vidioc_enum_fmt_vid_out        = fimc_m2m_enum_fmt,
+        .vidioc_enum_fmt_vid_cap        = fimc_vidioc_enum_fmt,
+        .vidioc_enum_fmt_vid_out        = fimc_vidioc_enum_fmt,
 
-        .vidioc_g_fmt_vid_cap           = fimc_m2m_g_fmt,
-        .vidioc_g_fmt_vid_out           = fimc_m2m_g_fmt,
+        .vidioc_g_fmt_vid_cap           = fimc_vidioc_g_fmt,
+        .vidioc_g_fmt_vid_out           = fimc_vidioc_g_fmt,
 
-        .vidioc_try_fmt_vid_cap         = fimc_m2m_try_fmt,
-        .vidioc_try_fmt_vid_out         = fimc_m2m_try_fmt,
+        .vidioc_try_fmt_vid_cap         = fimc_vidioc_try_fmt,
+        .vidioc_try_fmt_vid_out         = fimc_vidioc_try_fmt,
 
         .vidioc_s_fmt_vid_cap           = fimc_m2m_s_fmt,
         .vidioc_s_fmt_vid_out           = fimc_m2m_s_fmt,
@@ -1092,13 +1281,13 @@ static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
         .vidioc_streamon                = fimc_m2m_streamon,
         .vidioc_streamoff               = fimc_m2m_streamoff,
 
-        .vidioc_queryctrl               = fimc_m2m_queryctrl,
-        .vidioc_g_ctrl                  = fimc_m2m_g_ctrl,
+        .vidioc_queryctrl               = fimc_vidioc_queryctrl,
+        .vidioc_g_ctrl                  = fimc_vidioc_g_ctrl,
         .vidioc_s_ctrl                  = fimc_m2m_s_ctrl,
 
-        .vidioc_g_crop                  = fimc_m2m_g_crop,
+        .vidioc_g_crop                  = fimc_vidioc_g_crop,
         .vidioc_s_crop                  = fimc_m2m_s_crop,
-        .vidioc_cropcap                 = fimc_m2m_cropcap
+        .vidioc_cropcap                 = fimc_vidioc_cropcap
 
 };
 
@@ -1120,11 +1309,23 @@ static int fimc_m2m_open(struct file *file)
         struct fimc_ctx *ctx = NULL;
         int err = 0;
 
-        mutex_lock(&fimc->lock);
+        if (mutex_lock_interruptible(&fimc->lock))
+                return -ERESTARTSYS;
+
+        dbg("pid: %d, state: 0x%lx, refcnt: %d",
+                task_pid_nr(current), fimc->state, fimc->vid_cap.refcnt);
+
+        /*
+         * Return if the corresponding video capture node
+         * is already opened.
+         */
+        if (fimc->vid_cap.refcnt > 0) {
+                mutex_unlock(&fimc->lock);
+                return -EBUSY;
+        }
+
         fimc->m2m.refcnt++;
         set_bit(ST_OUTDMA_RUN, &fimc->state);
-        mutex_unlock(&fimc->lock);
-
 
         ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
         if (!ctx)
@@ -1135,8 +1336,8 @@ static int fimc_m2m_open(struct file *file)
         /* Default color format */
         ctx->s_frame.fmt = &fimc_formats[0];
         ctx->d_frame.fmt = &fimc_formats[0];
-        /* per user process device context initialization */
-        ctx->state = 0;
+        /* Setup the device context for mem2mem mode. */
+        ctx->state = FIMC_CTX_M2M;
         ctx->flags = 0;
         ctx->in_path = FIMC_DMA;
         ctx->out_path = FIMC_DMA;
@@ -1147,6 +1348,8 @@ static int fimc_m2m_open(struct file *file)
                 err = PTR_ERR(ctx->m2m_ctx);
                 kfree(ctx);
         }
+
+        mutex_unlock(&fimc->lock);
         return err;
 }
 
@@ -1155,11 +1358,16 @@ static int fimc_m2m_release(struct file *file)
         struct fimc_ctx *ctx = file->private_data;
         struct fimc_dev *fimc = ctx->fimc_dev;
 
+        mutex_lock(&fimc->lock);
+
+        dbg("pid: %d, state: 0x%lx, refcnt= %d",
+                task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
+
         v4l2_m2m_ctx_release(ctx->m2m_ctx);
         kfree(ctx);
-        mutex_lock(&fimc->lock);
         if (--fimc->m2m.refcnt <= 0)
                 clear_bit(ST_OUTDMA_RUN, &fimc->state);
+
         mutex_unlock(&fimc->lock);
         return 0;
 }
@@ -1168,6 +1376,7 @@ static unsigned int fimc_m2m_poll(struct file *file,
                                      struct poll_table_struct *wait)
 {
         struct fimc_ctx *ctx = file->private_data;
+
         return v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
 }
 
@@ -1175,6 +1384,7 @@ static unsigned int fimc_m2m_poll(struct file *file,
 static int fimc_m2m_mmap(struct file *file, struct vm_area_struct *vma)
 {
         struct fimc_ctx *ctx = file->private_data;
+
         return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
 }
 
@@ -1322,9 +1532,11 @@ static int fimc_probe(struct platform_device *pdev)
         fimc->id = pdev->id;
         fimc->variant = drv_data->variant[fimc->id];
         fimc->pdev = pdev;
+        fimc->pdata = pdev->dev.platform_data;
         fimc->state = ST_IDLE;
 
         spin_lock_init(&fimc->irqlock);
+        init_waitqueue_head(&fimc->irq_queue);
         spin_lock_init(&fimc->slock);
 
         mutex_init(&fimc->lock);
@@ -1354,6 +1566,7 @@ static int fimc_probe(struct platform_device *pdev)
         ret = fimc_clk_get(fimc);
         if (ret)
                 goto err_regs_unmap;
+        clk_set_rate(fimc->clock[0], drv_data->lclk_frequency);
 
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         if (!res) {
@@ -1375,11 +1588,27 @@ static int fimc_probe(struct platform_device *pdev)
         if (ret)
                 goto err_irq;
 
+        /* At least one camera sensor is required to register capture node */
+        if (fimc->pdata) {
+                int i;
+                for (i = 0; i < FIMC_MAX_CAMIF_CLIENTS; ++i)
+                        if (fimc->pdata->isp_info[i])
+                                break;
+
+                if (i < FIMC_MAX_CAMIF_CLIENTS) {
+                        ret = fimc_register_capture_device(fimc);
+                        if (ret)
+                                goto err_m2m;
+                }
+        }
+
         dev_dbg(&pdev->dev, "%s(): fimc-%d registered successfully\n",
                 __func__, fimc->id);
 
         return 0;
 
+err_m2m:
+        fimc_unregister_m2m_device(fimc);
 err_irq:
         free_irq(fimc->irq, fimc);
 err_clk:
@@ -1404,6 +1633,8 @@ static int __devexit fimc_remove(struct platform_device *pdev)
         fimc_hw_reset(fimc);
 
         fimc_unregister_m2m_device(fimc);
+        fimc_unregister_capture_device(fimc);
+
         fimc_clk_release(fimc);
         iounmap(fimc->regs);
         release_resource(fimc->regs_res);
@@ -1474,7 +1705,8 @@ static struct samsung_fimc_driverdata fimc_drvdata_s5p = {
                 [1] = &fimc01_variant_s5p,
                 [2] = &fimc2_variant_s5p,
         },
-        .devs_cnt = 3
+        .devs_cnt       = 3,
+        .lclk_frequency = 133000000UL,
 };
 
 static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
@@ -1483,7 +1715,8 @@ static struct samsung_fimc_driverdata fimc_drvdata_s5pv210 = {
                 [1] = &fimc01_variant_s5pv210,
                 [2] = &fimc2_variant_s5pv210,
         },
-        .devs_cnt = 3
+        .devs_cnt = 3,
+        .lclk_frequency = 166000000UL,
 };
 
 static struct platform_device_id fimc_driver_ids[] = {
@@ -1524,6 +1757,6 @@ static void __exit fimc_exit(void)
 module_init(fimc_init);
 module_exit(fimc_exit);
 
-MODULE_AUTHOR("Sylwester Nawrocki, s.nawrocki@samsung.com");
-MODULE_DESCRIPTION("S3C/S5P FIMC (video postprocessor) driver");
+MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
+MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h
index 5aeb3efbd457..ce0a6b8a7d54 100644
--- a/drivers/media/video/s5p-fimc/fimc-core.h
+++ b/drivers/media/video/s5p-fimc/fimc-core.h
@@ -11,10 +11,14 @@
 #ifndef FIMC_CORE_H_
 #define FIMC_CORE_H_
 
+/*#define DEBUG*/
+
 #include <linux/types.h>
 #include <media/videobuf-core.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mem2mem.h>
+#include <media/v4l2-mediabus.h>
+#include <media/s3c_fimc.h>
 #include <linux/videodev2.h>
 #include "regs-fimc.h"
 
@@ -28,6 +32,8 @@
 #define dbg(fmt, args...)
 #endif
 
+/* Time to wait for next frame VSYNC interrupt while stopping operation. */
+#define FIMC_SHUTDOWN_TIMEOUT   ((100*HZ)/1000)
 #define NUM_FIMC_CLOCKS         2
 #define MODULE_NAME             "s5p-fimc"
 #define FIMC_MAX_DEVS           3
@@ -36,19 +42,41 @@
 #define SCALER_MAX_VRATIO       64
 #define DMA_MIN_SIZE            8
 
-enum {
+/* FIMC device state flags */
+enum fimc_dev_flags {
+        /* for m2m node */
         ST_IDLE,
         ST_OUTDMA_RUN,
         ST_M2M_PEND,
+        /* for capture node */
+        ST_CAPT_PEND,
+        ST_CAPT_RUN,
+        ST_CAPT_STREAM,
+        ST_CAPT_SHUT,
 };
 
 #define fimc_m2m_active(dev) test_bit(ST_OUTDMA_RUN, &(dev)->state)
 #define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state)
 
+#define fimc_capture_running(dev) test_bit(ST_CAPT_RUN, &(dev)->state)
+#define fimc_capture_pending(dev) test_bit(ST_CAPT_PEND, &(dev)->state)
+
+#define fimc_capture_active(dev) \
+        (test_bit(ST_CAPT_RUN, &(dev)->state) || \
+         test_bit(ST_CAPT_PEND, &(dev)->state))
+
+#define fimc_capture_streaming(dev) \
+        test_bit(ST_CAPT_STREAM, &(dev)->state)
+
+#define fimc_buf_finish(dev, vid_buf) do { \
+        spin_lock(&(dev)->irqlock); \
+        (vid_buf)->vb.state = VIDEOBUF_DONE; \
+        spin_unlock(&(dev)->irqlock); \
+        wake_up(&(vid_buf)->vb.done); \
+} while (0)
+
 enum fimc_datapath {
-        FIMC_ITU_CAM_A,
-        FIMC_ITU_CAM_B,
-        FIMC_MIPI_CAM,
+        FIMC_CAMERA,
         FIMC_DMA,
         FIMC_LCDFIFO,
         FIMC_WRITEBACK
@@ -123,20 +151,25 @@ enum fimc_color_fmt {
 
 /**
  * struct fimc_fmt - the driver's internal color format data
+ * @mbus_code: Media Bus pixel code, -1 if not applicable
  * @name: format description
- * @fourcc: the fourcc code for this format
+ * @fourcc: the fourcc code for this format, 0 if not applicable
  * @color: the corresponding fimc_color_fmt
- * @depth: number of bits per pixel
+ * @depth: driver's private 'number of bits per pixel'
  * @buff_cnt: number of physically non-contiguous data planes
  * @planes_cnt: number of physically contiguous data planes
  */
 struct fimc_fmt {
+        enum v4l2_mbus_pixelcode mbus_code;
         char    *name;
         u32     fourcc;
         u32     color;
-        u32     depth;
         u16     buff_cnt;
         u16     planes_cnt;
+        u16     depth;
+        u16     flags;
+#define FMT_FLAGS_CAM   (1 << 0)
+#define FMT_FLAGS_M2M   (1 << 1)
 };
 
 /**
@@ -220,10 +253,14 @@ struct fimc_addr {
 
 /**
  * struct fimc_vid_buffer - the driver's video buffer
- * @vb: v4l videobuf buffer
+ * @vb:    v4l videobuf buffer
+ * @paddr: precalculated physical address set
+ * @index: buffer index for the output DMA engine
  */
 struct fimc_vid_buffer {
         struct videobuf_buffer  vb;
+        struct fimc_addr        paddr;
+        int                     index;
 };
 
 /**
@@ -274,6 +311,40 @@ struct fimc_m2m_device {
 };
 
 /**
+ * struct fimc_vid_cap - camera capture device information
+ * @ctx: hardware context data
+ * @vfd: video device node for camera capture mode
+ * @v4l2_dev: v4l2_device struct to manage subdevs
+ * @sd: pointer to camera sensor subdevice currently in use
+ * @fmt: Media Bus format configured at selected image sensor
+ * @pending_buf_q: the pending buffer queue head
+ * @active_buf_q: the queue head of buffers scheduled in hardware
+ * @vbq: the capture am video buffer queue
+ * @active_buf_cnt: number of video buffers scheduled in hardware
+ * @buf_index: index for managing the output DMA buffers
+ * @frame_count: the frame counter for statistics
+ * @reqbufs_count: the number of buffers requested in REQBUFS ioctl
+ * @input_index: input (camera sensor) index
+ * @refcnt: driver's private reference counter
+ */
+struct fimc_vid_cap {
+        struct fimc_ctx                 *ctx;
+        struct video_device             *vfd;
+        struct v4l2_device              v4l2_dev;
+        struct v4l2_subdev              *sd;
+        struct v4l2_mbus_framefmt       fmt;
+        struct list_head                pending_buf_q;
+        struct list_head                active_buf_q;
+        struct videobuf_queue           vbq;
+        int                             active_buf_cnt;
+        int                             buf_index;
+        unsigned int                    frame_count;
+        unsigned int                    reqbufs_count;
+        int                             input_index;
+        int                             refcnt;
+};
+
+/**
  * struct samsung_fimc_variant - camera interface variant information
  *
  * @pix_hoff: indicate whether horizontal offset is in pixels or in bytes
@@ -308,10 +379,12 @@ struct samsung_fimc_variant {
  *
  * @variant: the variant information for this driver.
  * @dev_cnt: number of fimc sub-devices available in SoC
+ * @lclk_frequency: fimc bus clock frequency
  */
 struct samsung_fimc_driverdata {
         struct samsung_fimc_variant *variant[FIMC_MAX_DEVS];
-        int     devs_cnt;
+        unsigned long   lclk_frequency;
+        int             devs_cnt;
 };
 
 struct fimc_ctx;
@@ -322,19 +395,23 @@ struct fimc_ctx;
  * @slock:      the spinlock protecting this data structure
  * @lock:       the mutex protecting this data structure
  * @pdev:       pointer to the FIMC platform device
+ * @pdata:      pointer to the device platform data
  * @id:         FIMC device index (0..2)
  * @clock[]:    the clocks required for FIMC operation
  * @regs:       the mapped hardware registers
  * @regs_res:   the resource claimed for IO registers
  * @irq:        interrupt number of the FIMC subdevice
  * @irqlock:    spinlock protecting videobuffer queue
+ * @irq_queue:
  * @m2m:        memory-to-memory V4L2 device information
- * @state:      the FIMC device state flags
+ * @vid_cap:    camera capture device information
+ * @state:      flags used to synchronize m2m and capture mode operation
  */
 struct fimc_dev {
         spinlock_t                      slock;
         struct mutex                    lock;
         struct platform_device          *pdev;
+        struct s3c_platform_fimc        *pdata;
         struct samsung_fimc_variant     *variant;
         int                             id;
         struct clk                      *clock[NUM_FIMC_CLOCKS];
@@ -342,7 +419,9 @@ struct fimc_dev {
         struct resource                 *regs_res;
         int                             irq;
         spinlock_t                      irqlock;
+        wait_queue_head_t               irq_queue;
         struct fimc_m2m_device          m2m;
+        struct fimc_vid_cap             vid_cap;
         unsigned long                   state;
 };
 
@@ -387,6 +466,7 @@ struct fimc_ctx {
         struct v4l2_m2m_ctx     *m2m_ctx;
 };
 
+extern struct videobuf_queue_ops fimc_qops;
 
 static inline int tiled_fmt(struct fimc_fmt *fmt)
 {
@@ -433,7 +513,10 @@ static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
         struct fimc_frame *frame;
 
         if (V4L2_BUF_TYPE_VIDEO_OUTPUT == type) {
-                frame = &ctx->s_frame;
+                if (ctx->state & FIMC_CTX_M2M)
+                        frame = &ctx->s_frame;
+                else
+                        return ERR_PTR(-EINVAL);
         } else if (V4L2_BUF_TYPE_VIDEO_CAPTURE == type) {
                 frame = &ctx->d_frame;
         } else {
@@ -445,6 +528,13 @@ static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
         return frame;
 }
 
+static inline u32 fimc_hw_get_frame_index(struct fimc_dev *dev)
+{
+        u32 reg = readl(dev->regs + S5P_CISTATUS);
+        return (reg & S5P_CISTATUS_FRAMECNT_MASK) >>
+                S5P_CISTATUS_FRAMECNT_SHIFT;
+}
+
 /* -----------------------------------------------------*/
 /* fimc-reg.c                                           */
 void fimc_hw_reset(struct fimc_dev *fimc);
@@ -462,6 +552,52 @@ void fimc_hw_set_output_path(struct fimc_ctx *ctx);
 void fimc_hw_set_input_addr(struct fimc_dev *fimc, struct fimc_addr *paddr);
 void fimc_hw_set_output_addr(struct fimc_dev *fimc, struct fimc_addr *paddr,
                               int index);
+int fimc_hw_set_camera_source(struct fimc_dev *fimc,
+                              struct s3c_fimc_isp_info *cam);
+int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f);
+int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
+                                struct s3c_fimc_isp_info *cam);
+int fimc_hw_set_camera_type(struct fimc_dev *fimc,
+                            struct s3c_fimc_isp_info *cam);
+
+/* -----------------------------------------------------*/
+/* fimc-core.c */
+int fimc_vidioc_enum_fmt(struct file *file, void *priv,
+                      struct v4l2_fmtdesc *f);
+int fimc_vidioc_g_fmt(struct file *file, void *priv,
+                      struct v4l2_format *f);
+int fimc_vidioc_try_fmt(struct file *file, void *priv,
+                        struct v4l2_format *f);
+int fimc_vidioc_g_crop(struct file *file, void *fh,
+                       struct v4l2_crop *cr);
+int fimc_vidioc_cropcap(struct file *file, void *fh,
+                        struct v4l2_cropcap *cr);
+int fimc_vidioc_queryctrl(struct file *file, void *priv,
+                          struct v4l2_queryctrl *qc);
+int fimc_vidioc_g_ctrl(struct file *file, void *priv,
+                       struct v4l2_control *ctrl);
+
+int fimc_try_crop(struct fimc_ctx *ctx, struct v4l2_crop *cr);
+int check_ctrl_val(struct fimc_ctx *ctx,  struct v4l2_control *ctrl);
+int fimc_s_ctrl(struct fimc_ctx *ctx, struct v4l2_control *ctrl);
+
+struct fimc_fmt *find_format(struct v4l2_format *f, unsigned int mask);
+struct fimc_fmt *find_mbus_format(struct v4l2_mbus_framefmt *f,
+                                  unsigned int mask);
+
+int fimc_check_scaler_ratio(struct v4l2_rect *r, struct fimc_frame *f);
+int fimc_set_scaler_info(struct fimc_ctx *ctx);
+int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
+int fimc_prepare_addr(struct fimc_ctx *ctx, struct fimc_vid_buffer *buf,
+                      struct fimc_frame *frame, struct fimc_addr *paddr);
+
+/* -----------------------------------------------------*/
+/* fimc-capture.c                                       */
+int fimc_register_capture_device(struct fimc_dev *fimc);
+void fimc_unregister_capture_device(struct fimc_dev *fimc);
+int fimc_sensor_sd_init(struct fimc_dev *fimc, int index);
+int fimc_vid_cap_buf_queue(struct fimc_dev *fimc,
+                             struct fimc_vid_buffer *fimc_vb);
 
 /* Locking: the caller holds fimc->slock */
 static inline void fimc_activate_capture(struct fimc_ctx *ctx)
@@ -478,4 +614,51 @@ static inline void fimc_deactivate_capture(struct fimc_dev *fimc)
         fimc_hw_en_lastirq(fimc, false);
 }
 
+/*
+ * Add video buffer to the active buffers queue.
+ * The caller holds irqlock spinlock.
+ */
+static inline void active_queue_add(struct fimc_vid_cap *vid_cap,
+                                         struct fimc_vid_buffer *buf)
+{
+        buf->vb.state = VIDEOBUF_ACTIVE;
+        list_add_tail(&buf->vb.queue, &vid_cap->active_buf_q);
+        vid_cap->active_buf_cnt++;
+}
+
+/*
+ * Pop a video buffer from the capture active buffers queue
+ * Locking: Need to be called with dev->slock held.
+ */
+static inline struct fimc_vid_buffer *
+active_queue_pop(struct fimc_vid_cap *vid_cap)
+{
+        struct fimc_vid_buffer *buf;
+        buf = list_entry(vid_cap->active_buf_q.next,
+                         struct fimc_vid_buffer, vb.queue);
+        list_del(&buf->vb.queue);
+        vid_cap->active_buf_cnt--;
+        return buf;
+}
+
+/* Add video buffer to the capture pending buffers queue */
+static inline void fimc_pending_queue_add(struct fimc_vid_cap *vid_cap,
+                                          struct fimc_vid_buffer *buf)
+{
+        buf->vb.state = VIDEOBUF_QUEUED;
+        list_add_tail(&buf->vb.queue, &vid_cap->pending_buf_q);
+}
+
+/* Add video buffer to the capture pending buffers queue */
+static inline struct fimc_vid_buffer *
+pending_queue_pop(struct fimc_vid_cap *vid_cap)
+{
+        struct fimc_vid_buffer *buf;
+        buf = list_entry(vid_cap->pending_buf_q.next,
+                        struct fimc_vid_buffer, vb.queue);
+        list_del(&buf->vb.queue);
+        return buf;
+}
+
+
 #endif /* FIMC_CORE_H_ */
diff --git a/drivers/media/video/s5p-fimc/fimc-reg.c b/drivers/media/video/s5p-fimc/fimc-reg.c
index 95adc8464693..511631a2e5c3 100644
--- a/drivers/media/video/s5p-fimc/fimc-reg.c
+++ b/drivers/media/video/s5p-fimc/fimc-reg.c
@@ -13,6 +13,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <mach/map.h>
+#include <media/s3c_fimc.h>
 
 #include "fimc-core.h"
 
@@ -176,6 +177,15 @@ static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
         cfg = S5P_ORIG_SIZE_HOR(frame->f_width);
         cfg |= S5P_ORIG_SIZE_VER(frame->f_height);
         writel(cfg, dev->regs + S5P_ORGOSIZE);
+
+        /* Select color space conversion equation (HD/SD size).*/
+        cfg = readl(dev->regs + S5P_CIGCTRL);
+        if (frame->f_width >= 1280) /* HD */
+                cfg |= S5P_CIGCTRL_CSC_ITU601_709;
+        else    /* SD */
+                cfg &= ~S5P_CIGCTRL_CSC_ITU601_709;
+        writel(cfg, dev->regs + S5P_CIGCTRL);
+
 }
 
 void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
@@ -231,19 +241,12 @@ static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
 
 void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
 {
-        unsigned long flags;
-        u32 cfg;
-
-        spin_lock_irqsave(&dev->slock, flags);
-
-        cfg = readl(dev->regs + S5P_CIOCTRL);
+        u32 cfg = readl(dev->regs + S5P_CIOCTRL);
         if (enable)
                 cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE;
         else
                 cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
         writel(cfg, dev->regs + S5P_CIOCTRL);
-
-        spin_unlock_irqrestore(&dev->slock, flags);
 }
 
 static void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
@@ -325,14 +328,18 @@ void fimc_hw_set_scaler(struct fimc_ctx *ctx)
 void fimc_hw_en_capture(struct fimc_ctx *ctx)
 {
         struct fimc_dev *dev = ctx->fimc_dev;
-        u32 cfg;
 
-        cfg = readl(dev->regs + S5P_CIIMGCPT);
-        /* One shot mode for output DMA or freerun for FIFO. */
-        if (ctx->out_path == FIMC_DMA)
-                cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE;
-        else
-                cfg &= ~S5P_CIIMGCPT_CPT_FREN_ENABLE;
+        u32 cfg = readl(dev->regs + S5P_CIIMGCPT);
+
+        if (ctx->out_path == FIMC_DMA) {
+                /* one shot mode */
+                cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN;
+        } else {
+                /* Continous frame capture mode (freerun). */
+                cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE |
+                         S5P_CIIMGCPT_CPT_FRMOD_CNT);
+                cfg |= S5P_CIIMGCPT_IMGCPTEN;
+        }
 
         if (ctx->scaler.enabled)
                 cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;
@@ -523,3 +530,139 @@ void fimc_hw_set_output_addr(struct fimc_dev *dev,
                     i, paddr->y, paddr->cb, paddr->cr);
         } while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
 }
+
+int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
+                                struct s3c_fimc_isp_info *cam)
+{
+        u32 cfg = readl(fimc->regs + S5P_CIGCTRL);
+
+        cfg &= ~(S5P_CIGCTRL_INVPOLPCLK | S5P_CIGCTRL_INVPOLVSYNC |
+                 S5P_CIGCTRL_INVPOLHREF | S5P_CIGCTRL_INVPOLHSYNC);
+
+        if (cam->flags & FIMC_CLK_INV_PCLK)
+                cfg |= S5P_CIGCTRL_INVPOLPCLK;
+
+        if (cam->flags & FIMC_CLK_INV_VSYNC)
+                cfg |= S5P_CIGCTRL_INVPOLVSYNC;
+
+        if (cam->flags & FIMC_CLK_INV_HREF)
+                cfg |= S5P_CIGCTRL_INVPOLHREF;
+
+        if (cam->flags & FIMC_CLK_INV_HSYNC)
+                cfg |= S5P_CIGCTRL_INVPOLHSYNC;
+
+        writel(cfg, fimc->regs + S5P_CIGCTRL);
+
+        return 0;
+}
+
+int fimc_hw_set_camera_source(struct fimc_dev *fimc,
+                              struct s3c_fimc_isp_info *cam)
+{
+        struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
+        u32 cfg = 0;
+
+        if (cam->bus_type == FIMC_ITU_601 || cam->bus_type == FIMC_ITU_656) {
+
+                switch (fimc->vid_cap.fmt.code) {
+                case V4L2_MBUS_FMT_YUYV8_2X8:
+                        cfg = S5P_CISRCFMT_ORDER422_YCBYCR;
+                        break;
+                case V4L2_MBUS_FMT_YVYU8_2X8:
+                        cfg = S5P_CISRCFMT_ORDER422_YCRYCB;
+                        break;
+                case V4L2_MBUS_FMT_VYUY8_2X8:
+                        cfg = S5P_CISRCFMT_ORDER422_CRYCBY;
+                        break;
+                case V4L2_MBUS_FMT_UYVY8_2X8:
+                        cfg = S5P_CISRCFMT_ORDER422_CBYCRY;
+                        break;
+                default:
+                        err("camera image format not supported: %d",
+                            fimc->vid_cap.fmt.code);
+                        return -EINVAL;
+                }
+
+                if (cam->bus_type == FIMC_ITU_601) {
+                        if (cam->bus_width == 8) {
+                                cfg |= S5P_CISRCFMT_ITU601_8BIT;
+                        } else if (cam->bus_width == 16) {
+                                cfg |= S5P_CISRCFMT_ITU601_16BIT;
+                        } else {
+                                err("invalid bus width: %d", cam->bus_width);
+                                return -EINVAL;
+                        }
+                } /* else defaults to ITU-R BT.656 8-bit */
+        }
+
+        cfg |= S5P_CISRCFMT_HSIZE(f->o_width) | S5P_CISRCFMT_VSIZE(f->o_height);
+        writel(cfg, fimc->regs + S5P_CISRCFMT);
+        return 0;
+}
+
+
+int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
+{
+        u32 hoff2, voff2;
+
+        u32 cfg = readl(fimc->regs + S5P_CIWDOFST);
+
+        cfg &= ~(S5P_CIWDOFST_HOROFF_MASK | S5P_CIWDOFST_VEROFF_MASK);
+        cfg |=  S5P_CIWDOFST_OFF_EN |
+                S5P_CIWDOFST_HOROFF(f->offs_h) |
+                S5P_CIWDOFST_VEROFF(f->offs_v);
+
+        writel(cfg, fimc->regs + S5P_CIWDOFST);
+
+        /* See CIWDOFSTn register description in the datasheet for details. */
+        hoff2 = f->o_width - f->width - f->offs_h;
+        voff2 = f->o_height - f->height - f->offs_v;
+        cfg = S5P_CIWDOFST2_HOROFF(hoff2) | S5P_CIWDOFST2_VEROFF(voff2);
+
+        writel(cfg, fimc->regs + S5P_CIWDOFST2);
+        return 0;
+}
+
+int fimc_hw_set_camera_type(struct fimc_dev *fimc,
+                            struct s3c_fimc_isp_info *cam)
+{
+        u32 cfg, tmp;
+        struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+
+        cfg = readl(fimc->regs + S5P_CIGCTRL);
+
+        /* Select ITU B interface, disable Writeback path and test pattern. */
+        cfg &= ~(S5P_CIGCTRL_TESTPAT_MASK | S5P_CIGCTRL_SELCAM_ITU_A |
+                S5P_CIGCTRL_SELCAM_MIPI | S5P_CIGCTRL_CAMIF_SELWB |
+                S5P_CIGCTRL_SELCAM_MIPI_A);
+
+        if (cam->bus_type == FIMC_MIPI_CSI2) {
+                cfg |= S5P_CIGCTRL_SELCAM_MIPI;
+
+                if (cam->mux_id == 0)
+                        cfg |= S5P_CIGCTRL_SELCAM_MIPI_A;
+
+                /* TODO: add remaining supported formats. */
+                if (vid_cap->fmt.code == V4L2_MBUS_FMT_VYUY8_2X8) {
+                        tmp = S5P_CSIIMGFMT_YCBCR422_8BIT;
+                } else {
+                        err("camera image format not supported: %d",
+                            vid_cap->fmt.code);
+                        return -EINVAL;
+                }
+                writel(tmp | (0x1 << 8), fimc->regs + S5P_CSIIMGFMT);
+
+        } else if (cam->bus_type == FIMC_ITU_601 ||
+                  cam->bus_type == FIMC_ITU_656) {
+                if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
+                        cfg |= S5P_CIGCTRL_SELCAM_ITU_A;
+        } else if (cam->bus_type == FIMC_LCD_WB) {
+                cfg |= S5P_CIGCTRL_CAMIF_SELWB;
+        } else {
+                err("invalid camera bus type selected\n");
+                return -EINVAL;
+        }
+        writel(cfg, fimc->regs + S5P_CIGCTRL);
+
+        return 0;
+}
diff --git a/include/media/s3c_fimc.h b/include/media/s3c_fimc.h
new file mode 100644
index 000000000000..ca1b6738e4a4
--- /dev/null
+++ b/include/media/s3c_fimc.h
@@ -0,0 +1,60 @@
+/*
+ * Samsung S5P SoC camera interface driver header
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd
+ * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef S3C_FIMC_H_
+#define S3C_FIMC_H_
+
+enum cam_bus_type {
+        FIMC_ITU_601 = 1,
+        FIMC_ITU_656,
+        FIMC_MIPI_CSI2,
+        FIMC_LCD_WB, /* FIFO link from LCD mixer */
+};
+
+#define FIMC_CLK_INV_PCLK       (1 << 0)
+#define FIMC_CLK_INV_VSYNC      (1 << 1)
+#define FIMC_CLK_INV_HREF       (1 << 2)
+#define FIMC_CLK_INV_HSYNC      (1 << 3)
+
+struct i2c_board_info;
+
+/**
+ * struct s3c_fimc_isp_info - image sensor information required for host
+ *                            interace configuration.
+ *
+ * @board_info: pointer to I2C subdevice's board info
+ * @bus_type: determines bus type, MIPI, ITU-R BT.601 etc.
+ * @i2c_bus_num: i2c control bus id the sensor is attached to
+ * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU)
+ * @bus_width: camera data bus width in bits
+ * @flags: flags defining bus signals polarity inversion (High by default)
+ */
+struct s3c_fimc_isp_info {
+        struct i2c_board_info *board_info;
+        enum cam_bus_type bus_type;
+        u16 i2c_bus_num;
+        u16 mux_id;
+        u16 bus_width;
+        u16 flags;
+};
+
+
+#define FIMC_MAX_CAMIF_CLIENTS  2
+
+/**
+ * struct s3c_platform_fimc - camera host interface platform data
+ *
+ * @isp_info: properties of camera sensor required for host interface setup
+ */
+struct s3c_platform_fimc {
+        struct s3c_fimc_isp_info *isp_info[FIMC_MAX_CAMIF_CLIENTS];
+};
+#endif /* S3C_FIMC_H_ */