From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 12:05:51 +0200
Subject: Adding upstream version 5.10.209.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/media/platform/omap/Kconfig          |   17 +
 drivers/media/platform/omap/Makefile         |    9 +
 drivers/media/platform/omap/omap_vout.c      | 1740 ++++++++++++++++++++++++++
 drivers/media/platform/omap/omap_vout_vrfb.c |  419 +++++++
 drivers/media/platform/omap/omap_vout_vrfb.h |   40 +
 drivers/media/platform/omap/omap_voutdef.h   |  219 ++++
 drivers/media/platform/omap/omap_voutlib.c   |  361 ++++++
 drivers/media/platform/omap/omap_voutlib.h   |   39 +
 8 files changed, 2844 insertions(+)
 create mode 100644 drivers/media/platform/omap/Kconfig
 create mode 100644 drivers/media/platform/omap/Makefile
 create mode 100644 drivers/media/platform/omap/omap_vout.c
 create mode 100644 drivers/media/platform/omap/omap_vout_vrfb.c
 create mode 100644 drivers/media/platform/omap/omap_vout_vrfb.h
 create mode 100644 drivers/media/platform/omap/omap_voutdef.h
 create mode 100644 drivers/media/platform/omap/omap_voutlib.c
 create mode 100644 drivers/media/platform/omap/omap_voutlib.h

(limited to 'drivers/media/platform/omap')

diff --git a/drivers/media/platform/omap/Kconfig b/drivers/media/platform/omap/Kconfig
new file mode 100644
index 000000000..f73b58932
--- /dev/null
+++ b/drivers/media/platform/omap/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_OMAP2_VOUT_VRFB
+	bool
+	default y
+	depends on VIDEO_OMAP2_VOUT && (OMAP2_VRFB || COMPILE_TEST)
+
+config VIDEO_OMAP2_VOUT
+	tristate "OMAP2/OMAP3 V4L2-Display driver"
+	depends on MMU
+	depends on FB_OMAP2 || (COMPILE_TEST && FB_OMAP2=n)
+	depends on ARCH_OMAP2 || ARCH_OMAP3 || COMPILE_TEST
+	depends on VIDEO_V4L2
+	select VIDEOBUF2_DMA_CONTIG
+	select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
+	select FRAME_VECTOR
+	help
+	  V4L2 Display driver support for OMAP2/3 based boards.
diff --git a/drivers/media/platform/omap/Makefile b/drivers/media/platform/omap/Makefile
new file mode 100644
index 000000000..b17a0ac10
--- /dev/null
+++ b/drivers/media/platform/omap/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the omap video device drivers.
+#
+
+# OMAP2/3 Display driver
+omap-vout-y += omap_vout.o omap_voutlib.o
+omap-vout-$(CONFIG_VIDEO_OMAP2_VOUT_VRFB) += omap_vout_vrfb.o
+obj-$(CONFIG_VIDEO_OMAP2_VOUT) += omap-vout.o
diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c
new file mode 100644
index 000000000..21193f0b7
--- /dev/null
+++ b/drivers/media/platform/omap/omap_vout.c
@@ -0,0 +1,1740 @@
+/*
+ * omap_vout.c
+ *
+ * Copyright (C) 2005-2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Leveraged code from the OMAP2 camera driver
+ * Video-for-Linux (Version 2) camera capture driver for
+ * the OMAP24xx camera controller.
+ *
+ * Author: Andy Lowe (source@mvista.com)
+ *
+ * Copyright (C) 2004 MontaVista Software, Inc.
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * History:
+ * 20-APR-2006 Khasim		Modified VRFB based Rotation,
+ *				The image data is always read from 0 degree
+ *				view and written
+ *				to the virtual space of desired rotation angle
+ * 4-DEC-2006  Jian		Changed to support better memory management
+ *
+ * 17-Nov-2008 Hardik		Changed driver to use video_ioctl2
+ *
+ * 23-Feb-2010 Vaibhav H	Modified to use new DSS2 interface
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/videodev2.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+
+#include <video/omapvrfb.h>
+#include <video/omapfb_dss.h>
+
+#include "omap_voutlib.h"
+#include "omap_voutdef.h"
+#include "omap_vout_vrfb.h"
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
+MODULE_LICENSE("GPL");
+
+/* Driver Configuration macros */
+#define VOUT_NAME		"omap_vout"
+
+enum omap_vout_channels {
+	OMAP_VIDEO1,
+	OMAP_VIDEO2,
+};
+
+/* Variables configurable through module params*/
+static bool vid1_static_vrfb_alloc;
+static bool vid2_static_vrfb_alloc;
+static bool debug;
+
+/* Module parameters */
+module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
+MODULE_PARM_DESC(vid1_static_vrfb_alloc,
+	"Static allocation of the VRFB buffer for video1 device");
+
+module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
+MODULE_PARM_DESC(vid2_static_vrfb_alloc,
+	"Static allocation of the VRFB buffer for video2 device");
+
+module_param(debug, bool, S_IRUGO);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+/* list of image formats supported by OMAP2 video pipelines */
+static const struct v4l2_fmtdesc omap_formats[] = {
+	{
+		/* Note:  V4L2 defines RGB565 as:
+		 *
+		 *      Byte 0                    Byte 1
+		 *      g2 g1 g0 r4 r3 r2 r1 r0   b4 b3 b2 b1 b0 g5 g4 g3
+		 *
+		 * We interpret RGB565 as:
+		 *
+		 *      Byte 0                    Byte 1
+		 *      g2 g1 g0 b4 b3 b2 b1 b0   r4 r3 r2 r1 r0 g5 g4 g3
+		 */
+		.pixelformat = V4L2_PIX_FMT_RGB565,
+	},
+	{
+		/* Note:  V4L2 defines RGB32 as: RGB-8-8-8-8  we use
+		 *  this for RGB24 unpack mode, the last 8 bits are ignored
+		 * */
+		.pixelformat = V4L2_PIX_FMT_RGB32,
+	},
+	{
+		/* Note:  V4L2 defines RGB24 as: RGB-8-8-8  we use
+		 *        this for RGB24 packed mode
+		 *
+		 */
+		.pixelformat = V4L2_PIX_FMT_RGB24,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_YUYV,
+	},
+	{
+		.pixelformat = V4L2_PIX_FMT_UYVY,
+	},
+};
+
+#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
+
+/*
+ * Try format
+ */
+static int omap_vout_try_format(struct v4l2_pix_format *pix)
+{
+	int ifmt, bpp = 0;
+
+	pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
+						(u32)VID_MAX_HEIGHT);
+	pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
+
+	for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
+		if (pix->pixelformat == omap_formats[ifmt].pixelformat)
+			break;
+	}
+
+	if (ifmt == NUM_OUTPUT_FORMATS)
+		ifmt = 0;
+
+	pix->pixelformat = omap_formats[ifmt].pixelformat;
+	pix->field = V4L2_FIELD_NONE;
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
+	default:
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+		bpp = YUYV_BPP;
+		break;
+	case V4L2_PIX_FMT_RGB565:
+	case V4L2_PIX_FMT_RGB565X:
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+		bpp = RGB565_BPP;
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+		bpp = RGB24_BPP;
+		break;
+	case V4L2_PIX_FMT_RGB32:
+	case V4L2_PIX_FMT_BGR32:
+		pix->colorspace = V4L2_COLORSPACE_SRGB;
+		bpp = RGB32_BPP;
+		break;
+	}
+	pix->bytesperline = pix->width * bpp;
+	pix->sizeimage = pix->bytesperline * pix->height;
+
+	return bpp;
+}
+
+/*
+ * Convert V4L2 rotation to DSS rotation
+ *	V4L2 understand 0, 90, 180, 270.
+ *	Convert to 0, 1, 2 and 3 respectively for DSS
+ */
+static int v4l2_rot_to_dss_rot(int v4l2_rotation,
+			enum dss_rotation *rotation, bool mirror)
+{
+	int ret = 0;
+
+	switch (v4l2_rotation) {
+	case 90:
+		*rotation = dss_rotation_90_degree;
+		break;
+	case 180:
+		*rotation = dss_rotation_180_degree;
+		break;
+	case 270:
+		*rotation = dss_rotation_270_degree;
+		break;
+	case 0:
+		*rotation = dss_rotation_0_degree;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	return ret;
+}
+
+static int omap_vout_calculate_offset(struct omap_vout_device *vout)
+{
+	struct omapvideo_info *ovid;
+	struct v4l2_rect *crop = &vout->crop;
+	struct v4l2_pix_format *pix = &vout->pix;
+	int *cropped_offset = &vout->cropped_offset;
+	int ps = 2, line_length = 0;
+
+	ovid = &vout->vid_info;
+
+	if (ovid->rotation_type == VOUT_ROT_VRFB) {
+		omap_vout_calculate_vrfb_offset(vout);
+	} else {
+		vout->line_length = line_length = pix->width;
+
+		if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
+			V4L2_PIX_FMT_UYVY == pix->pixelformat)
+			ps = 2;
+		else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
+			ps = 4;
+		else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
+			ps = 3;
+
+		vout->ps = ps;
+
+		*cropped_offset = (line_length * ps) *
+			crop->top + crop->left * ps;
+	}
+
+	v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
+			__func__, vout->cropped_offset);
+
+	return 0;
+}
+
+/*
+ * Convert V4L2 pixel format to DSS pixel format
+ */
+static int video_mode_to_dss_mode(struct omap_vout_device *vout)
+{
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct v4l2_pix_format *pix = &vout->pix;
+	enum omap_color_mode mode;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+		mode = OMAP_DSS_COLOR_YUV2;
+		break;
+	case V4L2_PIX_FMT_UYVY:
+		mode = OMAP_DSS_COLOR_UYVY;
+		break;
+	case V4L2_PIX_FMT_RGB565:
+		mode = OMAP_DSS_COLOR_RGB16;
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		mode = OMAP_DSS_COLOR_RGB24P;
+		break;
+	case V4L2_PIX_FMT_RGB32:
+		mode = (ovl->id == OMAP_DSS_VIDEO1) ?
+			OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		mode = OMAP_DSS_COLOR_RGBX32;
+		break;
+	default:
+		mode = -EINVAL;
+		break;
+	}
+	return mode;
+}
+
+/*
+ * Setup the overlay
+ */
+static int omapvid_setup_overlay(struct omap_vout_device *vout,
+		struct omap_overlay *ovl, int posx, int posy, int outw,
+		int outh, u32 addr)
+{
+	int ret = 0;
+	struct omap_overlay_info info;
+	int cropheight, cropwidth, pixwidth;
+
+	if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
+			(outw != vout->pix.width || outh != vout->pix.height)) {
+		ret = -EINVAL;
+		goto setup_ovl_err;
+	}
+
+	vout->dss_mode = video_mode_to_dss_mode(vout);
+	if (vout->dss_mode == -EINVAL) {
+		ret = -EINVAL;
+		goto setup_ovl_err;
+	}
+
+	/* Setup the input plane parameters according to
+	 * rotation value selected.
+	 */
+	if (is_rotation_90_or_270(vout)) {
+		cropheight = vout->crop.width;
+		cropwidth = vout->crop.height;
+		pixwidth = vout->pix.height;
+	} else {
+		cropheight = vout->crop.height;
+		cropwidth = vout->crop.width;
+		pixwidth = vout->pix.width;
+	}
+
+	ovl->get_overlay_info(ovl, &info);
+	info.paddr = addr;
+	info.width = cropwidth;
+	info.height = cropheight;
+	info.color_mode = vout->dss_mode;
+	info.mirror = vout->mirror;
+	info.pos_x = posx;
+	info.pos_y = posy;
+	info.out_width = outw;
+	info.out_height = outh;
+	info.global_alpha = vout->win.global_alpha;
+	if (!is_rotation_enabled(vout)) {
+		info.rotation = 0;
+		info.rotation_type = OMAP_DSS_ROT_DMA;
+		info.screen_width = pixwidth;
+	} else {
+		info.rotation = vout->rotation;
+		info.rotation_type = OMAP_DSS_ROT_VRFB;
+		info.screen_width = 2048;
+	}
+
+	v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
+		"%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
+		"rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
+		"out_height=%d rotation_type=%d screen_width=%d\n", __func__,
+		ovl->is_enabled(ovl), &info.paddr, info.width, info.height,
+		info.color_mode, info.rotation, info.mirror, info.pos_x,
+		info.pos_y, info.out_width, info.out_height, info.rotation_type,
+		info.screen_width);
+
+	ret = ovl->set_overlay_info(ovl, &info);
+	if (ret)
+		goto setup_ovl_err;
+
+	return 0;
+
+setup_ovl_err:
+	v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
+	return ret;
+}
+
+/*
+ * Initialize the overlay structure
+ */
+static int omapvid_init(struct omap_vout_device *vout, u32 addr)
+{
+	int ret = 0, i;
+	struct v4l2_window *win;
+	struct omap_overlay *ovl;
+	int posx, posy, outw, outh;
+	struct omap_video_timings *timing;
+	struct omapvideo_info *ovid = &vout->vid_info;
+
+	win = &vout->win;
+	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
+		ovl = ovid->overlays[i];
+		dssdev = ovl->get_device(ovl);
+
+		if (!dssdev)
+			return -EINVAL;
+
+		timing = &dssdev->panel.timings;
+
+		outw = win->w.width;
+		outh = win->w.height;
+		switch (vout->rotation) {
+		case dss_rotation_90_degree:
+			/* Invert the height and width for 90
+			 * and 270 degree rotation
+			 */
+			swap(outw, outh);
+			posy = (timing->y_res - win->w.width) - win->w.left;
+			posx = win->w.top;
+			break;
+
+		case dss_rotation_180_degree:
+			posx = (timing->x_res - win->w.width) - win->w.left;
+			posy = (timing->y_res - win->w.height) - win->w.top;
+			break;
+
+		case dss_rotation_270_degree:
+			swap(outw, outh);
+			posy = win->w.left;
+			posx = (timing->x_res - win->w.height) - win->w.top;
+			break;
+
+		default:
+			posx = win->w.left;
+			posy = win->w.top;
+			break;
+		}
+
+		ret = omapvid_setup_overlay(vout, ovl, posx, posy,
+				outw, outh, addr);
+		if (ret)
+			goto omapvid_init_err;
+	}
+	return 0;
+
+omapvid_init_err:
+	v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
+	return ret;
+}
+
+/*
+ * Apply the changes set the go bit of DSS
+ */
+static int omapvid_apply_changes(struct omap_vout_device *vout)
+{
+	int i;
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid = &vout->vid_info;
+
+	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
+		ovl = ovid->overlays[i];
+		dssdev = ovl->get_device(ovl);
+		if (!dssdev)
+			return -EINVAL;
+		ovl->manager->apply(ovl->manager);
+	}
+
+	return 0;
+}
+
+static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
+		unsigned int irqstatus, u64 ts)
+{
+	u32 fid;
+
+	if (vout->first_int) {
+		vout->first_int = 0;
+		goto err;
+	}
+
+	if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
+		fid = 1;
+	else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
+		fid = 0;
+	else
+		goto err;
+
+	vout->field_id ^= 1;
+	if (fid != vout->field_id) {
+		if (fid == 0)
+			vout->field_id = fid;
+	} else if (0 == fid) {
+		if (vout->cur_frm == vout->next_frm)
+			goto err;
+
+		vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
+		vout->cur_frm->vbuf.sequence = vout->sequence++;
+		vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
+		vout->cur_frm = vout->next_frm;
+	} else {
+		if (list_empty(&vout->dma_queue) ||
+				(vout->cur_frm != vout->next_frm))
+			goto err;
+	}
+
+	return vout->field_id;
+err:
+	return 0;
+}
+
+static void omap_vout_isr(void *arg, unsigned int irqstatus)
+{
+	int ret, fid, mgr_id;
+	u32 addr, irq;
+	struct omap_overlay *ovl;
+	u64 ts;
+	struct omapvideo_info *ovid;
+	struct omap_dss_device *cur_display;
+	struct omap_vout_device *vout = (struct omap_vout_device *)arg;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	mgr_id = ovl->manager->id;
+
+	/* get the display device attached to the overlay */
+	cur_display = ovl->get_device(ovl);
+
+	if (!cur_display)
+		return;
+
+	spin_lock(&vout->vbq_lock);
+	ts = ktime_get_ns();
+
+	switch (cur_display->type) {
+	case OMAP_DISPLAY_TYPE_DSI:
+	case OMAP_DISPLAY_TYPE_DPI:
+	case OMAP_DISPLAY_TYPE_DVI:
+		if (mgr_id == OMAP_DSS_CHANNEL_LCD)
+			irq = DISPC_IRQ_VSYNC;
+		else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
+			irq = DISPC_IRQ_VSYNC2;
+		else
+			goto vout_isr_err;
+
+		if (!(irqstatus & irq))
+			goto vout_isr_err;
+		break;
+	case OMAP_DISPLAY_TYPE_VENC:
+		fid = omapvid_handle_interlace_display(vout, irqstatus,
+				ts);
+		if (!fid)
+			goto vout_isr_err;
+		break;
+	case OMAP_DISPLAY_TYPE_HDMI:
+		if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
+			goto vout_isr_err;
+		break;
+	default:
+		goto vout_isr_err;
+	}
+
+	if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
+		vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
+		vout->cur_frm->vbuf.sequence = vout->sequence++;
+		vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
+		vout->cur_frm = vout->next_frm;
+	}
+
+	vout->first_int = 0;
+	if (list_empty(&vout->dma_queue))
+		goto vout_isr_err;
+
+	vout->next_frm = list_entry(vout->dma_queue.next,
+			struct omap_vout_buffer, queue);
+	list_del(&vout->next_frm->queue);
+
+	addr = (unsigned long)vout->queued_buf_addr[vout->next_frm->vbuf.vb2_buf.index]
+		+ vout->cropped_offset;
+
+	/* First save the configuration in ovelray structure */
+	ret = omapvid_init(vout, addr);
+	if (ret) {
+		printk(KERN_ERR VOUT_NAME
+			"failed to set overlay info\n");
+		goto vout_isr_err;
+	}
+
+	/* Enable the pipeline and set the Go bit */
+	ret = omapvid_apply_changes(vout);
+	if (ret)
+		printk(KERN_ERR VOUT_NAME "failed to change mode\n");
+
+vout_isr_err:
+	spin_unlock(&vout->vbq_lock);
+}
+
+
+/*
+ * V4L2 ioctls
+ */
+static int vidioc_querycap(struct file *file, void *fh,
+		struct v4l2_capability *cap)
+{
+	struct omap_vout_device *vout = video_drvdata(file);
+
+	strscpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
+	strscpy(cap->card, vout->vfd->name, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+		 "platform:%s.%d", VOUT_NAME, vout->vid);
+	return 0;
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_fmtdesc *fmt)
+{
+	int index = fmt->index;
+
+	if (index >= NUM_OUTPUT_FORMATS)
+		return -EINVAL;
+
+	fmt->flags = omap_formats[index].flags;
+	fmt->pixelformat = omap_formats[index].pixelformat;
+
+	return 0;
+}
+
+static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_vout_device *vout = video_drvdata(file);
+
+	f->fmt.pix = vout->pix;
+	return 0;
+
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_video_timings *timing;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omap_dss_device *dssdev;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
+
+	if (!dssdev)
+		return -EINVAL;
+
+	timing = &dssdev->panel.timings;
+
+	vout->fbuf.fmt.height = timing->y_res;
+	vout->fbuf.fmt.width = timing->x_res;
+
+	omap_vout_try_format(&f->fmt.pix);
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	int ret, bpp;
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_video_timings *timing;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omap_dss_device *dssdev;
+
+	if (vb2_is_busy(&vout->vq))
+		return -EBUSY;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+	dssdev = ovl->get_device(ovl);
+
+	/* get the display device attached to the overlay */
+	if (!dssdev) {
+		ret = -EINVAL;
+		goto s_fmt_vid_out_exit;
+	}
+	timing = &dssdev->panel.timings;
+
+	/* We don't support RGB24-packed mode if vrfb rotation
+	 * is enabled*/
+	if ((is_rotation_enabled(vout)) &&
+			f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
+		ret = -EINVAL;
+		goto s_fmt_vid_out_exit;
+	}
+
+	/* get the framebuffer parameters */
+
+	if (is_rotation_90_or_270(vout)) {
+		vout->fbuf.fmt.height = timing->x_res;
+		vout->fbuf.fmt.width = timing->y_res;
+	} else {
+		vout->fbuf.fmt.height = timing->y_res;
+		vout->fbuf.fmt.width = timing->x_res;
+	}
+
+	/* change to smaller size is OK */
+
+	bpp = omap_vout_try_format(&f->fmt.pix);
+	f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
+
+	/* try & set the new output format */
+	vout->bpp = bpp;
+	vout->pix = f->fmt.pix;
+	vout->vrfb_bpp = 1;
+
+	/* If YUYV then vrfb bpp is 2, for  others its 1 */
+	if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
+			V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
+		vout->vrfb_bpp = 2;
+
+	/* set default crop and win */
+	omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
+
+	ret = 0;
+
+s_fmt_vid_out_exit:
+	return ret;
+}
+
+static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	int ret = 0;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct v4l2_window *win = &f->fmt.win;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	ret = omap_vout_try_window(&vout->fbuf, win);
+
+	if (!ret && !(ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA))
+		win->global_alpha = 0;
+
+	return ret;
+}
+
+static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	int ret = 0;
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct v4l2_window *win = &f->fmt.win;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
+	if (!ret) {
+		enum omap_dss_trans_key_type key_type =
+			OMAP_DSS_COLOR_KEY_GFX_DST;
+		int enable;
+
+		/* Video1 plane does not support global alpha on OMAP3 */
+		if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
+			vout->win.global_alpha = win->global_alpha;
+		else
+			win->global_alpha = 0;
+		if (vout->fbuf.flags & (V4L2_FBUF_FLAG_CHROMAKEY |
+					V4L2_FBUF_FLAG_SRC_CHROMAKEY))
+			enable = 1;
+		else
+			enable = 0;
+		if (vout->fbuf.flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)
+			key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
+
+		if (ovl->manager && ovl->manager->get_manager_info &&
+		    ovl->manager->set_manager_info) {
+			struct omap_overlay_manager_info info;
+
+			ovl->manager->get_manager_info(ovl->manager, &info);
+			info.trans_enabled = enable;
+			info.trans_key_type = key_type;
+			info.trans_key = vout->win.chromakey;
+
+			if (ovl->manager->set_manager_info(ovl->manager, &info))
+				return -EINVAL;
+		}
+	}
+	return ret;
+}
+
+static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct v4l2_window *win = &f->fmt.win;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	win->w = vout->win.w;
+	win->field = vout->win.field;
+	win->chromakey = vout->win.chromakey;
+	if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
+		win->global_alpha = vout->win.global_alpha;
+	else
+		win->global_alpha = 0;
+	win->clips = NULL;
+	win->clipcount = 0;
+	win->bitmap = NULL;
+	return 0;
+}
+
+static int vidioc_g_selection(struct file *file, void *fh, struct v4l2_selection *sel)
+{
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct v4l2_pix_format *pix = &vout->pix;
+
+	if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		sel->r = vout->crop;
+		break;
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		omap_vout_default_crop(&vout->pix, &vout->fbuf, &sel->r);
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		/* Width and height are always even */
+		sel->r.width = pix->width & ~1;
+		sel->r.height = pix->height & ~1;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_s_selection(struct file *file, void *fh, struct v4l2_selection *sel)
+{
+	int ret = -EINVAL;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omapvideo_info *ovid;
+	struct omap_overlay *ovl;
+	struct omap_video_timings *timing;
+	struct omap_dss_device *dssdev;
+
+	if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	if (sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	if (vb2_is_busy(&vout->vq))
+		return -EBUSY;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
+
+	if (!dssdev) {
+		ret = -EINVAL;
+		goto s_crop_err;
+	}
+
+	timing = &dssdev->panel.timings;
+
+	if (is_rotation_90_or_270(vout)) {
+		vout->fbuf.fmt.height = timing->x_res;
+		vout->fbuf.fmt.width = timing->y_res;
+	} else {
+		vout->fbuf.fmt.height = timing->y_res;
+		vout->fbuf.fmt.width = timing->x_res;
+	}
+
+	ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
+				 &vout->fbuf, &sel->r);
+
+s_crop_err:
+	return ret;
+}
+
+static int omap_vout_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct omap_vout_device *vout =
+		container_of(ctrl->handler, struct omap_vout_device, ctrl_handler);
+	int ret = 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_ROTATE: {
+		struct omapvideo_info *ovid;
+		int rotation = ctrl->val;
+
+		ovid = &vout->vid_info;
+
+		if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
+			ret = -ERANGE;
+			break;
+		}
+
+		if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
+			ret = -EINVAL;
+			break;
+		}
+
+		if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
+							vout->mirror)) {
+			ret = -EINVAL;
+			break;
+		}
+		break;
+	}
+	case V4L2_CID_BG_COLOR:
+	{
+		struct omap_overlay *ovl;
+		unsigned int color = ctrl->val;
+		struct omap_overlay_manager_info info;
+
+		ovl = vout->vid_info.overlays[0];
+
+		if (!ovl->manager || !ovl->manager->get_manager_info) {
+			ret = -EINVAL;
+			break;
+		}
+
+		ovl->manager->get_manager_info(ovl->manager, &info);
+		info.default_color = color;
+		if (ovl->manager->set_manager_info(ovl->manager, &info)) {
+			ret = -EINVAL;
+			break;
+		}
+		break;
+	}
+	case V4L2_CID_VFLIP:
+	{
+		struct omapvideo_info *ovid;
+		unsigned int mirror = ctrl->val;
+
+		ovid = &vout->vid_info;
+
+		if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
+			ret = -ERANGE;
+			break;
+		}
+
+		if (mirror  && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
+			ret = -EINVAL;
+			break;
+		}
+		vout->mirror = mirror;
+		break;
+	}
+	default:
+		return -EINVAL;
+	}
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops omap_vout_ctrl_ops = {
+	.s_ctrl = omap_vout_s_ctrl,
+};
+
+static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
+				     unsigned int *nbufs,
+				     unsigned int *num_planes, unsigned int sizes[],
+				     struct device *alloc_devs[])
+{
+	struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+	int size = vout->pix.sizeimage;
+
+	if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
+		*nbufs = VRFB_NUM_BUFS - vq->num_buffers;
+		if (*nbufs == 0)
+			return -EINVAL;
+	}
+
+	if (*num_planes)
+		return sizes[0] < size ? -EINVAL : 0;
+
+	*num_planes = 1;
+	sizes[0] = size;
+	return 0;
+}
+
+static int omap_vout_vb2_prepare(struct vb2_buffer *vb)
+{
+	struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
+	struct omapvideo_info *ovid = &vout->vid_info;
+	struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
+	dma_addr_t buf_phy_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+	if (vb2_plane_size(vb, 0) < vout->pix.sizeimage) {
+		v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
+			 "%s data will not fit into plane (%lu < %u)\n",
+			__func__, vb2_plane_size(vb, 0), vout->pix.sizeimage);
+		return -EINVAL;
+	}
+
+	vb2_set_plane_payload(vb, 0, vout->pix.sizeimage);
+	voutbuf->vbuf.field = V4L2_FIELD_NONE;
+
+	vout->queued_buf_addr[vb->index] = (u8 *)buf_phy_addr;
+	if (ovid->rotation_type == VOUT_ROT_VRFB)
+		return omap_vout_prepare_vrfb(vout, vb);
+	return 0;
+}
+
+static void omap_vout_vb2_queue(struct vb2_buffer *vb)
+{
+	struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
+	struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
+
+	list_add_tail(&voutbuf->queue, &vout->dma_queue);
+}
+
+static int omap_vout_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+	struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+	struct omapvideo_info *ovid = &vout->vid_info;
+	struct omap_vout_buffer *buf, *tmp;
+	u32 addr = 0, mask = 0;
+	int ret, j;
+
+	/* Get the next frame from the buffer queue */
+	vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
+			struct omap_vout_buffer, queue);
+	/* Remove buffer from the buffer queue */
+	list_del(&vout->cur_frm->queue);
+	/* Initialize field_id and started member */
+	vout->field_id = 0;
+	vout->first_int = 1;
+	vout->sequence = 0;
+
+	if (omap_vout_calculate_offset(vout)) {
+		ret = -EINVAL;
+		goto out;
+	}
+	if (ovid->rotation_type == VOUT_ROT_VRFB)
+		if (omap_vout_vrfb_buffer_setup(vout, &count, 0)) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
+	addr = (unsigned long)vout->queued_buf_addr[vout->cur_frm->vbuf.vb2_buf.index]
+		+ vout->cropped_offset;
+
+	mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
+		| DISPC_IRQ_VSYNC2;
+
+	/* First save the configuration in overlay structure */
+	ret = omapvid_init(vout, addr);
+	if (ret) {
+		v4l2_err(&vout->vid_dev->v4l2_dev,
+				"failed to set overlay info\n");
+		goto streamon_err1;
+	}
+
+	omap_dispc_register_isr(omap_vout_isr, vout, mask);
+
+	/* Enable the pipeline and set the Go bit */
+	ret = omapvid_apply_changes(vout);
+	if (ret)
+		v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
+
+	for (j = 0; j < ovid->num_overlays; j++) {
+		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
+
+		if (dssdev) {
+			ret = ovl->enable(ovl);
+			if (ret)
+				goto streamon_err1;
+		}
+	}
+	return 0;
+
+streamon_err1:
+	mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
+		| DISPC_IRQ_VSYNC2;
+
+	omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
+
+	for (j = 0; j < ovid->num_overlays; j++) {
+		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
+			ovl->disable(ovl);
+	}
+	/* Turn of the pipeline */
+	if (omapvid_apply_changes(vout))
+		v4l2_err(&vout->vid_dev->v4l2_dev,
+			 "failed to change mode in streamoff\n");
+
+out:
+	vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
+	list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
+		list_del(&buf->queue);
+		vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
+	}
+	return ret;
+}
+
+static void omap_vout_vb2_stop_streaming(struct vb2_queue *vq)
+{
+	struct omap_vout_device *vout = vb2_get_drv_priv(vq);
+	struct omapvideo_info *ovid = &vout->vid_info;
+	struct omap_vout_buffer *buf, *tmp;
+	u32 mask = 0;
+	int j;
+
+	mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
+		| DISPC_IRQ_VSYNC2;
+
+	omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
+
+	for (j = 0; j < ovid->num_overlays; j++) {
+		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
+			ovl->disable(ovl);
+	}
+	/* Turn of the pipeline */
+	if (omapvid_apply_changes(vout))
+		v4l2_err(&vout->vid_dev->v4l2_dev,
+			 "failed to change mode in streamoff\n");
+
+	if (vout->next_frm != vout->cur_frm)
+		vb2_buffer_done(&vout->next_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
+	vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
+	list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
+		list_del(&buf->queue);
+		vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+}
+
+static int vidioc_s_fbuf(struct file *file, void *fh,
+				const struct v4l2_framebuffer *a)
+{
+	int enable = 0;
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omap_overlay_manager_info info;
+	enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+
+	/* OMAP DSS doesn't support Source and Destination color
+	   key together */
+	if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
+			(a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
+		return -EINVAL;
+	/* OMAP DSS Doesn't support the Destination color key
+	   and alpha blending together */
+	if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
+			(a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
+		return -EINVAL;
+
+	if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
+		vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
+		key_type =  OMAP_DSS_COLOR_KEY_VID_SRC;
+	} else
+		vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
+
+	if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
+		vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
+		key_type =  OMAP_DSS_COLOR_KEY_GFX_DST;
+	} else
+		vout->fbuf.flags &=  ~V4L2_FBUF_FLAG_CHROMAKEY;
+
+	if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
+				V4L2_FBUF_FLAG_SRC_CHROMAKEY))
+		enable = 1;
+	else
+		enable = 0;
+	if (ovl->manager && ovl->manager->get_manager_info &&
+			ovl->manager->set_manager_info) {
+
+		ovl->manager->get_manager_info(ovl->manager, &info);
+		info.trans_enabled = enable;
+		info.trans_key_type = key_type;
+		info.trans_key = vout->win.chromakey;
+
+		if (ovl->manager->set_manager_info(ovl->manager, &info))
+			return -EINVAL;
+	}
+	if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
+		vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
+		enable = 1;
+	} else {
+		vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
+		enable = 0;
+	}
+	if (ovl->manager && ovl->manager->get_manager_info &&
+			ovl->manager->set_manager_info) {
+		ovl->manager->get_manager_info(ovl->manager, &info);
+		/* enable this only if there is no zorder cap */
+		if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+			info.partial_alpha_enabled = enable;
+		if (ovl->manager->set_manager_info(ovl->manager, &info))
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int vidioc_g_fbuf(struct file *file, void *fh,
+		struct v4l2_framebuffer *a)
+{
+	struct omap_overlay *ovl;
+	struct omapvideo_info *ovid;
+	struct omap_vout_device *vout = video_drvdata(file);
+	struct omap_overlay_manager_info info;
+	struct omap_video_timings *timing;
+	struct omap_dss_device *dssdev;
+
+	ovid = &vout->vid_info;
+	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
+
+	if (!dssdev)
+		return -EINVAL;
+
+	timing = &dssdev->panel.timings;
+
+	vout->fbuf.fmt.height = timing->y_res;
+	vout->fbuf.fmt.width = timing->x_res;
+	a->fmt.field = V4L2_FIELD_NONE;
+	a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
+	a->fmt.pixelformat = V4L2_PIX_FMT_RGBA32;
+	a->fmt.height = vout->fbuf.fmt.height;
+	a->fmt.width = vout->fbuf.fmt.width;
+	a->fmt.bytesperline = vout->fbuf.fmt.width * 4;
+	a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
+	a->base = vout->fbuf.base;
+
+	a->flags = vout->fbuf.flags;
+	a->capability = vout->fbuf.capability;
+	a->flags &= ~(V4L2_FBUF_FLAG_SRC_CHROMAKEY | V4L2_FBUF_FLAG_CHROMAKEY |
+		      V4L2_FBUF_FLAG_LOCAL_ALPHA);
+
+	if (ovl->manager && ovl->manager->get_manager_info) {
+		ovl->manager->get_manager_info(ovl->manager, &info);
+		if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
+			a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
+		if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
+			a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
+		if (info.partial_alpha_enabled)
+			a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
+	}
+
+	return 0;
+}
+
+static int vidioc_enum_output(struct file *file, void *priv_fh,
+			      struct v4l2_output *out)
+{
+	if (out->index)
+		return -EINVAL;
+	snprintf(out->name, sizeof(out->name), "Overlay");
+	out->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
+	return 0;
+}
+
+static int vidioc_g_output(struct file *file, void *priv_fh, unsigned int *i)
+{
+	*i = 0;
+	return 0;
+}
+
+static int vidioc_s_output(struct file *file, void *priv_fh, unsigned int i)
+{
+	return i ? -EINVAL : 0;
+}
+
+static const struct v4l2_ioctl_ops vout_ioctl_ops = {
+	.vidioc_querycap			= vidioc_querycap,
+	.vidioc_enum_fmt_vid_out		= vidioc_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out			= vidioc_g_fmt_vid_out,
+	.vidioc_try_fmt_vid_out			= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out			= vidioc_s_fmt_vid_out,
+	.vidioc_s_fbuf				= vidioc_s_fbuf,
+	.vidioc_g_fbuf				= vidioc_g_fbuf,
+	.vidioc_try_fmt_vid_out_overlay		= vidioc_try_fmt_vid_overlay,
+	.vidioc_s_fmt_vid_out_overlay		= vidioc_s_fmt_vid_overlay,
+	.vidioc_g_fmt_vid_out_overlay		= vidioc_g_fmt_vid_overlay,
+	.vidioc_g_selection			= vidioc_g_selection,
+	.vidioc_s_selection			= vidioc_s_selection,
+	.vidioc_enum_output			= vidioc_enum_output,
+	.vidioc_g_output			= vidioc_g_output,
+	.vidioc_s_output			= vidioc_s_output,
+	.vidioc_reqbufs				= vb2_ioctl_reqbufs,
+	.vidioc_create_bufs			= vb2_ioctl_create_bufs,
+	.vidioc_querybuf			= vb2_ioctl_querybuf,
+	.vidioc_qbuf				= vb2_ioctl_qbuf,
+	.vidioc_dqbuf				= vb2_ioctl_dqbuf,
+	.vidioc_expbuf				= vb2_ioctl_expbuf,
+	.vidioc_streamon			= vb2_ioctl_streamon,
+	.vidioc_streamoff			= vb2_ioctl_streamoff,
+	.vidioc_subscribe_event			= v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event		= v4l2_event_unsubscribe,
+};
+
+static const struct v4l2_file_operations omap_vout_fops = {
+	.owner		= THIS_MODULE,
+	.unlocked_ioctl	= video_ioctl2,
+	.poll		= vb2_fop_poll,
+	.mmap		= vb2_fop_mmap,
+	.open		= v4l2_fh_open,
+	.release	= vb2_fop_release,
+};
+
+static const struct vb2_ops omap_vout_vb2_ops = {
+	.queue_setup		= omap_vout_vb2_queue_setup,
+	.buf_queue		= omap_vout_vb2_queue,
+	.buf_prepare		= omap_vout_vb2_prepare,
+	.start_streaming	= omap_vout_vb2_start_streaming,
+	.stop_streaming		= omap_vout_vb2_stop_streaming,
+	.wait_prepare		= vb2_ops_wait_prepare,
+	.wait_finish		= vb2_ops_wait_finish,
+};
+
+/* Init functions used during driver initialization */
+/* Initial setup of video_data */
+static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
+{
+	struct video_device *vfd;
+	struct v4l2_pix_format *pix;
+	struct omap_overlay *ovl = vout->vid_info.overlays[0];
+	struct omap_dss_device *display = ovl->get_device(ovl);
+	struct v4l2_ctrl_handler *hdl;
+	struct vb2_queue *vq;
+	int ret;
+
+	/* set the default pix */
+	pix = &vout->pix;
+
+	/* Set the default picture of QVGA  */
+	pix->width = QQVGA_WIDTH;
+	pix->height = QQVGA_HEIGHT;
+
+	/* Default pixel format is RGB 5-6-5 */
+	pix->pixelformat = V4L2_PIX_FMT_RGB565;
+	pix->field = V4L2_FIELD_NONE;
+	pix->bytesperline = pix->width * 2;
+	pix->sizeimage = pix->bytesperline * pix->height;
+	pix->colorspace = V4L2_COLORSPACE_SRGB;
+
+	vout->bpp = RGB565_BPP;
+	vout->fbuf.fmt.width  =  display->panel.timings.x_res;
+	vout->fbuf.fmt.height =  display->panel.timings.y_res;
+	vout->cropped_offset = 0;
+
+	/* Set the data structures for the overlay parameters*/
+	vout->fbuf.flags = V4L2_FBUF_FLAG_OVERLAY;
+	vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
+		V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY |
+		V4L2_FBUF_CAP_EXTERNOVERLAY;
+	if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) {
+		vout->win.global_alpha = 255;
+		vout->fbuf.capability |= V4L2_FBUF_CAP_GLOBAL_ALPHA;
+		vout->fbuf.flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;
+	} else {
+		vout->win.global_alpha = 0;
+	}
+	vout->win.field = V4L2_FIELD_NONE;
+
+	omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
+
+	hdl = &vout->ctrl_handler;
+	v4l2_ctrl_handler_init(hdl, 3);
+	if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) {
+		v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
+				  V4L2_CID_ROTATE, 0, 270, 90, 0);
+		v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
+				  V4L2_CID_VFLIP, 0, 1, 1, 0);
+	}
+	v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
+			  V4L2_CID_BG_COLOR, 0, 0xffffff, 1, 0);
+	if (hdl->error)
+		return hdl->error;
+
+	vout->rotation = 0;
+	vout->mirror = false;
+	INIT_LIST_HEAD(&vout->dma_queue);
+	if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
+		vout->vrfb_bpp = 2;
+
+	/* initialize the video_device struct */
+	vfd = vout->vfd = video_device_alloc();
+
+	if (!vfd) {
+		printk(KERN_ERR VOUT_NAME
+		       ": could not allocate video device struct\n");
+		v4l2_ctrl_handler_free(hdl);
+		return -ENOMEM;
+	}
+	vfd->ctrl_handler = hdl;
+	vfd->release = video_device_release;
+	vfd->ioctl_ops = &vout_ioctl_ops;
+
+	strscpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
+
+	vfd->fops = &omap_vout_fops;
+	vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
+	vfd->vfl_dir = VFL_DIR_TX;
+	vfd->minor = -1;
+	vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
+			   V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
+	mutex_init(&vout->lock);
+
+	vq = &vout->vq;
+	vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+	vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	vq->drv_priv = vout;
+	vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	vq->buf_struct_size = sizeof(struct omap_vout_buffer);
+	vq->dev = vfd->v4l2_dev->dev;
+
+	vq->ops = &omap_vout_vb2_ops;
+	vq->mem_ops = &vb2_dma_contig_memops;
+	vq->lock = &vout->lock;
+	vq->min_buffers_needed = 1;
+	vfd->queue = vq;
+
+	ret = vb2_queue_init(vq);
+	if (ret) {
+		v4l2_ctrl_handler_free(hdl);
+		video_device_release(vfd);
+	}
+	return ret;
+}
+
+/* Setup video buffers */
+static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
+		int vid_num)
+{
+	struct omapvideo_info *ovid;
+	struct omap_vout_device *vout;
+	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+	struct omap2video_device *vid_dev =
+		container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
+	int ret = 0;
+
+	vout = vid_dev->vouts[vid_num];
+	ovid = &vout->vid_info;
+
+	if (ovid->rotation_type == VOUT_ROT_VRFB) {
+		bool static_vrfb_allocation = (vid_num == 0) ?
+			vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
+		ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
+				static_vrfb_allocation);
+	}
+	return ret;
+}
+
+/* Create video out devices */
+static int __init omap_vout_create_video_devices(struct platform_device *pdev)
+{
+	int ret = 0, k;
+	struct omap_vout_device *vout;
+	struct video_device *vfd = NULL;
+	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+	struct omap2video_device *vid_dev = container_of(v4l2_dev,
+			struct omap2video_device, v4l2_dev);
+	struct omap_overlay *ovl = vid_dev->overlays[0];
+	struct omap_overlay_info info;
+
+	ovl->get_overlay_info(ovl, &info);
+
+	for (k = 0; k < pdev->num_resources; k++) {
+
+		vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
+		if (!vout) {
+			dev_err(&pdev->dev, ": could not allocate memory\n");
+			return -ENOMEM;
+		}
+
+		vout->vid = k;
+		vid_dev->vouts[k] = vout;
+		vout->vid_dev = vid_dev;
+		/* Select video2 if only 1 overlay is controlled by V4L2 */
+		if (pdev->num_resources == 1)
+			vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
+		else
+			/* Else select video1 and video2 one by one. */
+			vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
+		vout->vid_info.num_overlays = 1;
+		vout->vid_info.id = k + 1;
+		spin_lock_init(&vout->vbq_lock);
+		/*
+		 * Set the framebuffer base, this allows applications to find
+		 * the fb corresponding to this overlay.
+		 *
+		 * To be precise: fbuf.base should match smem_start of
+		 * struct fb_fix_screeninfo.
+		 */
+		vout->fbuf.base = (void *)info.paddr;
+
+		/* Set VRFB as rotation_type for omap2 and omap3 */
+		if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
+			vout->vid_info.rotation_type = VOUT_ROT_VRFB;
+
+		/* Setup the default configuration for the video devices
+		 */
+		if (omap_vout_setup_video_data(vout) != 0) {
+			ret = -ENOMEM;
+			goto error;
+		}
+
+		/* Allocate default number of buffers for the video streaming
+		 * and reserve the VRFB space for rotation
+		 */
+		if (omap_vout_setup_video_bufs(pdev, k) != 0) {
+			ret = -ENOMEM;
+			goto error1;
+		}
+
+		/* Register the Video device with V4L2
+		 */
+		vfd = vout->vfd;
+		if (video_register_device(vfd, VFL_TYPE_VIDEO, -1) < 0) {
+			dev_err(&pdev->dev,
+				": Could not register Video for Linux device\n");
+			vfd->minor = -1;
+			ret = -ENODEV;
+			goto error2;
+		}
+		video_set_drvdata(vfd, vout);
+
+		dev_info(&pdev->dev,
+			 ": registered and initialized video device %d\n",
+			 vfd->minor);
+		if (k == (pdev->num_resources - 1))
+			return 0;
+
+		continue;
+error2:
+		if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
+			omap_vout_release_vrfb(vout);
+error1:
+		video_device_release(vfd);
+error:
+		kfree(vout);
+		return ret;
+	}
+
+	return -ENODEV;
+}
+/* Driver functions */
+static void omap_vout_cleanup_device(struct omap_vout_device *vout)
+{
+	struct video_device *vfd;
+	struct omapvideo_info *ovid;
+
+	if (!vout)
+		return;
+
+	vfd = vout->vfd;
+	ovid = &vout->vid_info;
+	if (vfd) {
+		if (!video_is_registered(vfd)) {
+			/*
+			 * The device was never registered, so release the
+			 * video_device struct directly.
+			 */
+			video_device_release(vfd);
+		} else {
+			/*
+			 * The unregister function will release the video_device
+			 * struct as well as unregistering it.
+			 */
+			video_unregister_device(vfd);
+		}
+	}
+	v4l2_ctrl_handler_free(&vout->ctrl_handler);
+	if (ovid->rotation_type == VOUT_ROT_VRFB) {
+		omap_vout_release_vrfb(vout);
+		/* Free the VRFB buffer if allocated
+		 * init time
+		 */
+		if (vout->vrfb_static_allocation)
+			omap_vout_free_vrfb_buffers(vout);
+	}
+
+	kfree(vout);
+}
+
+static int omap_vout_remove(struct platform_device *pdev)
+{
+	int k;
+	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+	struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
+			omap2video_device, v4l2_dev);
+
+	v4l2_device_unregister(v4l2_dev);
+	for (k = 0; k < pdev->num_resources; k++)
+		omap_vout_cleanup_device(vid_dev->vouts[k]);
+
+	for (k = 0; k < vid_dev->num_displays; k++) {
+		if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
+			vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
+
+		omap_dss_put_device(vid_dev->displays[k]);
+	}
+	kfree(vid_dev);
+	return 0;
+}
+
+static int __init omap_vout_probe(struct platform_device *pdev)
+{
+	int ret = 0, i;
+	struct omap_overlay *ovl;
+	struct omap_dss_device *dssdev = NULL;
+	struct omap_dss_device *def_display;
+	struct omap2video_device *vid_dev = NULL;
+
+	if (omapdss_is_initialized() == false)
+		return -EPROBE_DEFER;
+
+	ret = omapdss_compat_init();
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init dss\n");
+		return ret;
+	}
+
+	if (pdev->num_resources == 0) {
+		dev_err(&pdev->dev, "probed for an unknown device\n");
+		ret = -ENODEV;
+		goto err_dss_init;
+	}
+
+	vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
+	if (vid_dev == NULL) {
+		ret = -ENOMEM;
+		goto err_dss_init;
+	}
+
+	vid_dev->num_displays = 0;
+	for_each_dss_dev(dssdev) {
+		omap_dss_get_device(dssdev);
+
+		if (!dssdev->driver) {
+			dev_warn(&pdev->dev, "no driver for display: %s\n",
+					dssdev->name);
+			omap_dss_put_device(dssdev);
+			continue;
+		}
+
+		vid_dev->displays[vid_dev->num_displays++] = dssdev;
+	}
+
+	if (vid_dev->num_displays == 0) {
+		dev_err(&pdev->dev, "no displays\n");
+		ret = -EINVAL;
+		goto probe_err0;
+	}
+
+	vid_dev->num_overlays = omap_dss_get_num_overlays();
+	for (i = 0; i < vid_dev->num_overlays; i++)
+		vid_dev->overlays[i] = omap_dss_get_overlay(i);
+
+	vid_dev->num_managers = omap_dss_get_num_overlay_managers();
+	for (i = 0; i < vid_dev->num_managers; i++)
+		vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
+
+	/* Get the Video1 overlay and video2 overlay.
+	 * Setup the Display attached to that overlays
+	 */
+	for (i = 1; i < vid_dev->num_overlays; i++) {
+		ovl = omap_dss_get_overlay(i);
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev) {
+			def_display = dssdev;
+		} else {
+			dev_warn(&pdev->dev, "cannot find display\n");
+			def_display = NULL;
+		}
+		if (def_display) {
+			struct omap_dss_driver *dssdrv = def_display->driver;
+
+			ret = dssdrv->enable(def_display);
+			if (ret) {
+				/* Here we are not considering a error
+				 *  as display may be enabled by frame
+				 *  buffer driver
+				 */
+				dev_warn(&pdev->dev,
+					"'%s' Display already enabled\n",
+					def_display->name);
+			}
+		}
+	}
+
+	if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
+		dev_err(&pdev->dev, "v4l2_device_register failed\n");
+		ret = -ENODEV;
+		goto probe_err1;
+	}
+
+	ret = omap_vout_create_video_devices(pdev);
+	if (ret)
+		goto probe_err2;
+
+	for (i = 0; i < vid_dev->num_displays; i++) {
+		struct omap_dss_device *display = vid_dev->displays[i];
+
+		if (display->driver->update)
+			display->driver->update(display, 0, 0,
+					display->panel.timings.x_res,
+					display->panel.timings.y_res);
+	}
+	return 0;
+
+probe_err2:
+	v4l2_device_unregister(&vid_dev->v4l2_dev);
+probe_err1:
+	for (i = 1; i < vid_dev->num_overlays; i++) {
+		def_display = NULL;
+		ovl = omap_dss_get_overlay(i);
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
+			def_display = dssdev;
+
+		if (def_display && def_display->driver)
+			def_display->driver->disable(def_display);
+	}
+probe_err0:
+	kfree(vid_dev);
+err_dss_init:
+	omapdss_compat_uninit();
+	return ret;
+}
+
+static struct platform_driver omap_vout_driver = {
+	.driver = {
+		.name = VOUT_NAME,
+	},
+	.remove = omap_vout_remove,
+};
+
+static int __init omap_vout_init(void)
+{
+	if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
+		printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void omap_vout_cleanup(void)
+{
+	platform_driver_unregister(&omap_vout_driver);
+}
+
+late_initcall(omap_vout_init);
+module_exit(omap_vout_cleanup);
diff --git a/drivers/media/platform/omap/omap_vout_vrfb.c b/drivers/media/platform/omap/omap_vout_vrfb.c
new file mode 100644
index 000000000..6bd672cbd
--- /dev/null
+++ b/drivers/media/platform/omap/omap_vout_vrfb.c
@@ -0,0 +1,419 @@
+/*
+ * omap_vout_vrfb.c
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <linux/videodev2.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-device.h>
+
+#include <video/omapvrfb.h>
+
+#include "omap_voutdef.h"
+#include "omap_voutlib.h"
+#include "omap_vout_vrfb.h"
+
+#define OMAP_DMA_NO_DEVICE	0
+
+/*
+ * Function for allocating video buffers
+ */
+static int omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout,
+		unsigned int *count, int startindex)
+{
+	int i, j;
+
+	for (i = 0; i < *count; i++) {
+		if (!vout->smsshado_virt_addr[i]) {
+			vout->smsshado_virt_addr[i] =
+				omap_vout_alloc_buffer(vout->smsshado_size,
+						&vout->smsshado_phy_addr[i]);
+		}
+		if (!vout->smsshado_virt_addr[i] && startindex != -1) {
+			if (vout->vq.memory == V4L2_MEMORY_MMAP && i >= startindex)
+				break;
+		}
+		if (!vout->smsshado_virt_addr[i]) {
+			for (j = 0; j < i; j++) {
+				omap_vout_free_buffer(
+						vout->smsshado_virt_addr[j],
+						vout->smsshado_size);
+				vout->smsshado_virt_addr[j] = 0;
+				vout->smsshado_phy_addr[j] = 0;
+			}
+			*count = 0;
+			return -ENOMEM;
+		}
+		memset((void *)(long)vout->smsshado_virt_addr[i], 0,
+		       vout->smsshado_size);
+	}
+	return 0;
+}
+
+/*
+ * Wakes up the application once the DMA transfer to VRFB space is completed.
+ */
+static void omap_vout_vrfb_dma_tx_callback(void *data)
+{
+	struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data;
+
+	t->tx_status = 1;
+	wake_up_interruptible(&t->wait);
+}
+
+/*
+ * Free VRFB buffers
+ */
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout)
+{
+	int j;
+
+	for (j = 0; j < VRFB_NUM_BUFS; j++) {
+		if (vout->smsshado_virt_addr[j]) {
+			omap_vout_free_buffer(vout->smsshado_virt_addr[j],
+					      vout->smsshado_size);
+			vout->smsshado_virt_addr[j] = 0;
+			vout->smsshado_phy_addr[j] = 0;
+		}
+	}
+}
+
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
+			      bool static_vrfb_allocation)
+{
+	int ret = 0, i, j;
+	struct omap_vout_device *vout;
+	struct video_device *vfd;
+	dma_cap_mask_t mask;
+	int image_width, image_height;
+	int vrfb_num_bufs = VRFB_NUM_BUFS;
+	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+	struct omap2video_device *vid_dev =
+		container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
+
+	vout = vid_dev->vouts[vid_num];
+	vfd = vout->vfd;
+
+	for (i = 0; i < VRFB_NUM_BUFS; i++) {
+		if (omap_vrfb_request_ctx(&vout->vrfb_context[i])) {
+			dev_info(&pdev->dev, ": VRFB allocation failed\n");
+			for (j = 0; j < i; j++)
+				omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+			return -ENOMEM;
+		}
+	}
+
+	/* Calculate VRFB memory size */
+	/* allocate for worst case size */
+	image_width = VID_MAX_WIDTH / TILE_SIZE;
+	if (VID_MAX_WIDTH % TILE_SIZE)
+		image_width++;
+
+	image_width = image_width * TILE_SIZE;
+	image_height = VID_MAX_HEIGHT / TILE_SIZE;
+
+	if (VID_MAX_HEIGHT % TILE_SIZE)
+		image_height++;
+
+	image_height = image_height * TILE_SIZE;
+	vout->smsshado_size = PAGE_ALIGN(image_width * image_height * 2 * 2);
+
+	/*
+	 * Request and Initialize DMA, for DMA based VRFB transfer
+	 */
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_INTERLEAVE, mask);
+	vout->vrfb_dma_tx.chan = dma_request_chan_by_mask(&mask);
+	if (IS_ERR(vout->vrfb_dma_tx.chan)) {
+		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+	} else {
+		size_t xt_size = sizeof(struct dma_interleaved_template) +
+				 sizeof(struct data_chunk);
+
+		vout->vrfb_dma_tx.xt = kzalloc(xt_size, GFP_KERNEL);
+		if (!vout->vrfb_dma_tx.xt) {
+			dma_release_channel(vout->vrfb_dma_tx.chan);
+			vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+		}
+	}
+
+	if (vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED)
+		dev_info(&pdev->dev,
+			 ": failed to allocate DMA Channel for video%d\n",
+			 vfd->minor);
+
+	init_waitqueue_head(&vout->vrfb_dma_tx.wait);
+
+	/*
+	 * statically allocated the VRFB buffer is done through
+	 * command line arguments
+	 */
+	if (static_vrfb_allocation) {
+		if (omap_vout_allocate_vrfb_buffers(vout, &vrfb_num_bufs, -1)) {
+			ret =  -ENOMEM;
+			goto release_vrfb_ctx;
+		}
+		vout->vrfb_static_allocation = true;
+	}
+	return 0;
+
+release_vrfb_ctx:
+	for (j = 0; j < VRFB_NUM_BUFS; j++)
+		omap_vrfb_release_ctx(&vout->vrfb_context[j]);
+	return ret;
+}
+
+/*
+ * Release the VRFB context once the module exits
+ */
+void omap_vout_release_vrfb(struct omap_vout_device *vout)
+{
+	int i;
+
+	for (i = 0; i < VRFB_NUM_BUFS; i++)
+		omap_vrfb_release_ctx(&vout->vrfb_context[i]);
+
+	if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) {
+		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+		kfree(vout->vrfb_dma_tx.xt);
+		dmaengine_terminate_sync(vout->vrfb_dma_tx.chan);
+		dma_release_channel(vout->vrfb_dma_tx.chan);
+	}
+}
+
+/*
+ * Allocate the buffers for the VRFB space.  Data is copied from V4L2
+ * buffers to the VRFB buffers using the DMA engine.
+ */
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+			  unsigned int *count, unsigned int startindex)
+{
+	int i;
+	bool yuv_mode;
+
+	if (!is_rotation_enabled(vout))
+		return 0;
+
+	/* If rotation is enabled, allocate memory for VRFB space also */
+	*count = *count > VRFB_NUM_BUFS ? VRFB_NUM_BUFS : *count;
+
+	/* Allocate the VRFB buffers only if the buffers are not
+	 * allocated during init time.
+	 */
+	if (!vout->vrfb_static_allocation)
+		if (omap_vout_allocate_vrfb_buffers(vout, count, startindex))
+			return -ENOMEM;
+
+	if (vout->dss_mode == OMAP_DSS_COLOR_YUV2 ||
+			vout->dss_mode == OMAP_DSS_COLOR_UYVY)
+		yuv_mode = true;
+	else
+		yuv_mode = false;
+
+	for (i = 0; i < *count; i++)
+		omap_vrfb_setup(&vout->vrfb_context[i],
+				vout->smsshado_phy_addr[i], vout->pix.width,
+				vout->pix.height, vout->bpp, yuv_mode);
+
+	return 0;
+}
+
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+			   struct vb2_buffer *vb)
+{
+	struct dma_async_tx_descriptor *tx;
+	enum dma_ctrl_flags flags = DMA_PREP_INTERRUPT | DMA_CTRL_ACK;
+	struct dma_chan *chan = vout->vrfb_dma_tx.chan;
+	struct dma_interleaved_template *xt = vout->vrfb_dma_tx.xt;
+	dma_cookie_t cookie;
+	dma_addr_t buf_phy_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+	enum dma_status status;
+	enum dss_rotation rotation;
+	size_t dst_icg;
+	u32 pixsize;
+
+	if (!is_rotation_enabled(vout))
+		return 0;
+
+	/* If rotation is enabled, copy input buffer into VRFB
+	 * memory space using DMA. We are copying input buffer
+	 * into VRFB memory space of desired angle and DSS will
+	 * read image VRFB memory for 0 degree angle
+	 */
+
+	pixsize = vout->bpp * vout->vrfb_bpp;
+	dst_icg = MAX_PIXELS_PER_LINE * pixsize - vout->pix.width * vout->bpp;
+
+	xt->src_start = buf_phy_addr;
+	xt->dst_start = vout->vrfb_context[vb->index].paddr[0];
+
+	xt->numf = vout->pix.height;
+	xt->frame_size = 1;
+	xt->sgl[0].size = vout->pix.width * vout->bpp;
+	xt->sgl[0].icg = dst_icg;
+
+	xt->dir = DMA_MEM_TO_MEM;
+	xt->src_sgl = false;
+	xt->src_inc = true;
+	xt->dst_sgl = true;
+	xt->dst_inc = true;
+
+	tx = dmaengine_prep_interleaved_dma(chan, xt, flags);
+	if (tx == NULL) {
+		pr_err("%s: DMA interleaved prep error\n", __func__);
+		return -EINVAL;
+	}
+
+	tx->callback = omap_vout_vrfb_dma_tx_callback;
+	tx->callback_param = &vout->vrfb_dma_tx;
+
+	cookie = dmaengine_submit(tx);
+	if (dma_submit_error(cookie)) {
+		pr_err("%s: dmaengine_submit failed (%d)\n", __func__, cookie);
+		return -EINVAL;
+	}
+
+	vout->vrfb_dma_tx.tx_status = 0;
+	dma_async_issue_pending(chan);
+
+	wait_event_interruptible_timeout(vout->vrfb_dma_tx.wait,
+					 vout->vrfb_dma_tx.tx_status == 1,
+					 VRFB_TX_TIMEOUT);
+
+	status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
+
+	if (vout->vrfb_dma_tx.tx_status == 0) {
+		pr_err("%s: Timeout while waiting for DMA\n", __func__);
+		dmaengine_terminate_sync(chan);
+		return -EINVAL;
+	} else if (status != DMA_COMPLETE) {
+		pr_err("%s: DMA completion %s status\n", __func__,
+		       status == DMA_ERROR ? "error" : "busy");
+		dmaengine_terminate_sync(chan);
+		return -EINVAL;
+	}
+
+	/* Store buffers physical address into an array. Addresses
+	 * from this array will be used to configure DSS */
+	rotation = calc_rotation(vout);
+	vout->queued_buf_addr[vb->index] = (u8 *)
+		vout->vrfb_context[vb->index].paddr[rotation];
+	return 0;
+}
+
+/*
+ * Calculate the buffer offsets from which the streaming should
+ * start. This offset calculation is mainly required because of
+ * the VRFB 32 pixels alignment with rotation.
+ */
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout)
+{
+	enum dss_rotation rotation;
+	bool mirroring = vout->mirror;
+	struct v4l2_rect *crop = &vout->crop;
+	struct v4l2_pix_format *pix = &vout->pix;
+	int *cropped_offset = &vout->cropped_offset;
+	int vr_ps = 1, ps = 2, temp_ps = 2;
+	int offset = 0, ctop = 0, cleft = 0, line_length = 0;
+
+	rotation = calc_rotation(vout);
+
+	if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
+			V4L2_PIX_FMT_UYVY == pix->pixelformat) {
+		if (is_rotation_enabled(vout)) {
+			/*
+			 * ps    - Actual pixel size for YUYV/UYVY for
+			 *         VRFB/Mirroring is 4 bytes
+			 * vr_ps - Virtually pixel size for YUYV/UYVY is
+			 *         2 bytes
+			 */
+			ps = 4;
+			vr_ps = 2;
+		} else {
+			ps = 2;	/* otherwise the pixel size is 2 byte */
+		}
+	} else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) {
+		ps = 4;
+	} else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) {
+		ps = 3;
+	}
+	vout->ps = ps;
+	vout->vr_ps = vr_ps;
+
+	if (is_rotation_enabled(vout)) {
+		line_length = MAX_PIXELS_PER_LINE;
+		ctop = (pix->height - crop->height) - crop->top;
+		cleft = (pix->width - crop->width) - crop->left;
+	} else {
+		line_length = pix->width;
+	}
+	vout->line_length = line_length;
+	switch (rotation) {
+	case dss_rotation_90_degree:
+		offset = vout->vrfb_context[0].yoffset *
+			vout->vrfb_context[0].bytespp;
+		temp_ps = ps / vr_ps;
+		if (!mirroring) {
+			*cropped_offset = offset + line_length *
+				temp_ps * cleft + crop->top * temp_ps;
+		} else {
+			*cropped_offset = offset + line_length * temp_ps *
+				cleft + crop->top * temp_ps + (line_length *
+				((crop->width / (vr_ps)) - 1) * ps);
+		}
+		break;
+	case dss_rotation_180_degree:
+		offset = ((MAX_PIXELS_PER_LINE * vout->vrfb_context[0].yoffset *
+			vout->vrfb_context[0].bytespp) +
+			(vout->vrfb_context[0].xoffset *
+			vout->vrfb_context[0].bytespp));
+		if (!mirroring) {
+			*cropped_offset = offset + (line_length * ps * ctop) +
+				(cleft / vr_ps) * ps;
+
+		} else {
+			*cropped_offset = offset + (line_length * ps * ctop) +
+				(cleft / vr_ps) * ps + (line_length *
+				(crop->height - 1) * ps);
+		}
+		break;
+	case dss_rotation_270_degree:
+		offset = MAX_PIXELS_PER_LINE * vout->vrfb_context[0].xoffset *
+			vout->vrfb_context[0].bytespp;
+		temp_ps = ps / vr_ps;
+		if (!mirroring) {
+			*cropped_offset = offset + line_length *
+			    temp_ps * crop->left + ctop * ps;
+		} else {
+			*cropped_offset = offset + line_length *
+				temp_ps * crop->left + ctop * ps +
+				(line_length * ((crop->width / vr_ps) - 1) *
+				 ps);
+		}
+		break;
+	case dss_rotation_0_degree:
+		if (!mirroring) {
+			*cropped_offset = (line_length * ps) *
+				crop->top + (crop->left / vr_ps) * ps;
+		} else {
+			*cropped_offset = (line_length * ps) *
+				crop->top + (crop->left / vr_ps) * ps +
+				(line_length * (crop->height - 1) * ps);
+		}
+		break;
+	default:
+		*cropped_offset = (line_length * ps * crop->top) /
+			vr_ps + (crop->left * ps) / vr_ps +
+			((crop->width / vr_ps) - 1) * ps;
+		break;
+	}
+}
diff --git a/drivers/media/platform/omap/omap_vout_vrfb.h b/drivers/media/platform/omap/omap_vout_vrfb.h
new file mode 100644
index 000000000..40bc9e54e
--- /dev/null
+++ b/drivers/media/platform/omap/omap_vout_vrfb.h
@@ -0,0 +1,40 @@
+/*
+ * omap_vout_vrfb.h
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef OMAP_VOUT_VRFB_H
+#define OMAP_VOUT_VRFB_H
+
+#ifdef CONFIG_VIDEO_OMAP2_VOUT_VRFB
+void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout);
+int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
+			bool static_vrfb_allocation);
+void omap_vout_release_vrfb(struct omap_vout_device *vout);
+int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+			unsigned int *count, unsigned int startindex);
+int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+			struct vb2_buffer *vb);
+void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout);
+#else
+static inline void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout) { };
+static inline int omap_vout_setup_vrfb_bufs(struct platform_device *pdev, int vid_num,
+			bool static_vrfb_allocation)
+		{ return 0; };
+static inline void omap_vout_release_vrfb(struct omap_vout_device *vout) { };
+static inline int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout,
+			unsigned int *count, unsigned int startindex)
+		{ return 0; };
+static inline int omap_vout_prepare_vrfb(struct omap_vout_device *vout,
+			struct vb2_buffer *vb)
+		{ return 0; };
+static inline void omap_vout_calculate_vrfb_offset(struct omap_vout_device *vout) { };
+#endif
+
+#endif
diff --git a/drivers/media/platform/omap/omap_voutdef.h b/drivers/media/platform/omap/omap_voutdef.h
new file mode 100644
index 000000000..1cff6dea1
--- /dev/null
+++ b/drivers/media/platform/omap/omap_voutdef.h
@@ -0,0 +1,219 @@
+/*
+ * omap_voutdef.h
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef OMAP_VOUTDEF_H
+#define OMAP_VOUTDEF_H
+
+#include <media/videobuf2-dma-contig.h>
+#include <media/v4l2-ctrls.h>
+#include <video/omapfb_dss.h>
+#include <video/omapvrfb.h>
+#include <linux/dmaengine.h>
+
+#define YUYV_BPP        2
+#define RGB565_BPP      2
+#define RGB24_BPP       3
+#define RGB32_BPP       4
+#define TILE_SIZE       32
+#define YUYV_VRFB_BPP   2
+#define RGB_VRFB_BPP    1
+#define MAX_CID		3
+#define MAC_VRFB_CTXS	4
+#define MAX_VOUT_DEV	2
+#define MAX_OVLS	3
+#define MAX_DISPLAYS	10
+#define MAX_MANAGERS	3
+
+#define QQVGA_WIDTH		160
+#define QQVGA_HEIGHT		120
+
+/* Max Resolution supported by the driver */
+#define VID_MAX_WIDTH		1280	/* Largest width */
+#define VID_MAX_HEIGHT		720	/* Largest height */
+
+/* Minimum requirement is 2x2 for DSS */
+#define VID_MIN_WIDTH		2
+#define VID_MIN_HEIGHT		2
+
+/* 2048 x 2048 is max res supported by OMAP display controller */
+#define MAX_PIXELS_PER_LINE     2048
+
+#define VRFB_TX_TIMEOUT         1000
+#define VRFB_NUM_BUFS		4
+
+/* Max buffer size tobe allocated during init */
+#define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4)
+
+enum dma_channel_state {
+	DMA_CHAN_NOT_ALLOTED,
+	DMA_CHAN_ALLOTED,
+};
+
+/* Enum for Rotation
+ * DSS understands rotation in 0, 1, 2, 3 context
+ * while V4L2 driver understands it as 0, 90, 180, 270
+ */
+enum dss_rotation {
+	dss_rotation_0_degree	= 0,
+	dss_rotation_90_degree	= 1,
+	dss_rotation_180_degree	= 2,
+	dss_rotation_270_degree = 3,
+};
+
+/* Enum for choosing rotation type for vout
+ * DSS2 doesn't understand no rotation as an
+ * option while V4L2 driver doesn't support
+ * rotation in the case where VRFB is not built in
+ * the kernel
+ */
+enum vout_rotaion_type {
+	VOUT_ROT_NONE	= 0,
+	VOUT_ROT_VRFB	= 1,
+};
+
+/*
+ * This structure is used to store the DMA transfer parameters
+ * for VRFB hidden buffer
+ */
+struct vid_vrfb_dma {
+	struct dma_chan *chan;
+	struct dma_interleaved_template *xt;
+
+	int req_status;
+	int tx_status;
+	wait_queue_head_t wait;
+};
+
+struct omapvideo_info {
+	int id;
+	int num_overlays;
+	struct omap_overlay *overlays[MAX_OVLS];
+	enum vout_rotaion_type rotation_type;
+};
+
+struct omap2video_device {
+	struct mutex  mtx;
+
+	int state;
+
+	struct v4l2_device v4l2_dev;
+	struct omap_vout_device *vouts[MAX_VOUT_DEV];
+
+	int num_displays;
+	struct omap_dss_device *displays[MAX_DISPLAYS];
+	int num_overlays;
+	struct omap_overlay *overlays[MAX_OVLS];
+	int num_managers;
+	struct omap_overlay_manager *managers[MAX_MANAGERS];
+};
+
+/* buffer for one video frame */
+struct omap_vout_buffer {
+	/* common v4l buffer stuff -- must be first */
+	struct vb2_v4l2_buffer		vbuf;
+	struct list_head		queue;
+};
+
+static inline struct omap_vout_buffer *vb2_to_omap_vout_buffer(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+
+	return container_of(vbuf, struct omap_vout_buffer, vbuf);
+}
+
+/* per-device data structure */
+struct omap_vout_device {
+
+	struct omapvideo_info vid_info;
+	struct video_device *vfd;
+	struct omap2video_device *vid_dev;
+	struct v4l2_ctrl_handler ctrl_handler;
+	int vid;
+
+	/* allow to reuse previously allocated buffer which is big enough */
+	int buffer_size;
+	enum omap_color_mode dss_mode;
+
+	u32 sequence;
+
+	struct v4l2_pix_format pix;
+	struct v4l2_rect crop;
+	struct v4l2_window win;
+	struct v4l2_framebuffer fbuf;
+
+	/* Lock to protect the shared data structures in ioctl */
+	struct mutex lock;
+
+	enum dss_rotation rotation;
+	bool mirror;
+	int flicker_filter;
+
+	int bpp; /* bytes per pixel */
+	int vrfb_bpp; /* bytes per pixel with respect to VRFB */
+
+	struct vid_vrfb_dma vrfb_dma_tx;
+	unsigned int smsshado_phy_addr[MAC_VRFB_CTXS];
+	unsigned int smsshado_virt_addr[MAC_VRFB_CTXS];
+	struct vrfb vrfb_context[MAC_VRFB_CTXS];
+	bool vrfb_static_allocation;
+	unsigned int smsshado_size;
+	unsigned char pos;
+
+	int ps, vr_ps, line_length, first_int, field_id;
+	struct omap_vout_buffer *cur_frm, *next_frm;
+	spinlock_t vbq_lock;            /* spinlock for dma_queue */
+	struct list_head dma_queue;
+	u8 *queued_buf_addr[VIDEO_MAX_FRAME];
+	u32 cropped_offset;
+	s32 tv_field1_offset;
+	void *isr_handle;
+	struct vb2_queue vq;
+
+};
+
+/*
+ * Return true if rotation is 90 or 270
+ */
+static inline int is_rotation_90_or_270(const struct omap_vout_device *vout)
+{
+	return (vout->rotation == dss_rotation_90_degree ||
+			vout->rotation == dss_rotation_270_degree);
+}
+
+/*
+ * Return true if rotation is enabled
+ */
+static inline int is_rotation_enabled(const struct omap_vout_device *vout)
+{
+	return vout->rotation || vout->mirror;
+}
+
+/*
+ * Reverse the rotation degree if mirroring is enabled
+ */
+static inline int calc_rotation(const struct omap_vout_device *vout)
+{
+	if (!vout->mirror)
+		return vout->rotation;
+
+	switch (vout->rotation) {
+	case dss_rotation_90_degree:
+		return dss_rotation_270_degree;
+	case dss_rotation_270_degree:
+		return dss_rotation_90_degree;
+	case dss_rotation_180_degree:
+		return dss_rotation_0_degree;
+	default:
+		return dss_rotation_180_degree;
+	}
+}
+
+void omap_vout_free_buffers(struct omap_vout_device *vout);
+#endif	/* ifndef OMAP_VOUTDEF_H */
diff --git a/drivers/media/platform/omap/omap_voutlib.c b/drivers/media/platform/omap/omap_voutlib.c
new file mode 100644
index 000000000..480a7e955
--- /dev/null
+++ b/drivers/media/platform/omap/omap_voutlib.c
@@ -0,0 +1,361 @@
+/*
+ * omap_voutlib.c
+ *
+ * Copyright (C) 2005-2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Based on the OMAP2 camera driver
+ * Video-for-Linux (Version 2) camera capture driver for
+ * the OMAP24xx camera controller.
+ *
+ * Author: Andy Lowe (source@mvista.com)
+ *
+ * Copyright (C) 2004 MontaVista Software, Inc.
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+#include <linux/dma-mapping.h>
+
+#include <video/omapfb_dss.h>
+
+#include "omap_voutlib.h"
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("OMAP Video library");
+MODULE_LICENSE("GPL");
+
+/* Return the default overlay cropping rectangle in crop given the image
+ * size in pix and the video display size in fbuf.  The default
+ * cropping rectangle is the largest rectangle no larger than the capture size
+ * that will fit on the display.  The default cropping rectangle is centered in
+ * the image.  All dimensions and offsets are rounded down to even numbers.
+ */
+void omap_vout_default_crop(struct v4l2_pix_format *pix,
+		  struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop)
+{
+	crop->width = (pix->width < fbuf->fmt.width) ?
+		pix->width : fbuf->fmt.width;
+	crop->height = (pix->height < fbuf->fmt.height) ?
+		pix->height : fbuf->fmt.height;
+	crop->width &= ~1;
+	crop->height &= ~1;
+	crop->left = ((pix->width - crop->width) >> 1) & ~1;
+	crop->top = ((pix->height - crop->height) >> 1) & ~1;
+}
+EXPORT_SYMBOL_GPL(omap_vout_default_crop);
+
+/* Given a new render window in new_win, adjust the window to the
+ * nearest supported configuration.  The adjusted window parameters are
+ * returned in new_win.
+ * Returns zero if successful, or -EINVAL if the requested window is
+ * impossible and cannot reasonably be adjusted.
+ */
+int omap_vout_try_window(struct v4l2_framebuffer *fbuf,
+			struct v4l2_window *new_win)
+{
+	struct v4l2_rect try_win;
+
+	/* make a working copy of the new_win rectangle */
+	try_win = new_win->w;
+
+	/* adjust the preview window so it fits on the display by clipping any
+	 * offscreen areas
+	 */
+	if (try_win.left < 0) {
+		try_win.width += try_win.left;
+		try_win.left = 0;
+	}
+	if (try_win.top < 0) {
+		try_win.height += try_win.top;
+		try_win.top = 0;
+	}
+	try_win.width = (try_win.width < fbuf->fmt.width) ?
+		try_win.width : fbuf->fmt.width;
+	try_win.height = (try_win.height < fbuf->fmt.height) ?
+		try_win.height : fbuf->fmt.height;
+	if (try_win.left + try_win.width > fbuf->fmt.width)
+		try_win.width = fbuf->fmt.width - try_win.left;
+	if (try_win.top + try_win.height > fbuf->fmt.height)
+		try_win.height = fbuf->fmt.height - try_win.top;
+	try_win.width &= ~1;
+	try_win.height &= ~1;
+
+	if (try_win.width <= 0 || try_win.height <= 0)
+		return -EINVAL;
+
+	/* We now have a valid preview window, so go with it */
+	new_win->w = try_win;
+	new_win->field = V4L2_FIELD_NONE;
+	new_win->clips = NULL;
+	new_win->clipcount = 0;
+	new_win->bitmap = NULL;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(omap_vout_try_window);
+
+/* Given a new render window in new_win, adjust the window to the
+ * nearest supported configuration.  The image cropping window in crop
+ * will also be adjusted if necessary.  Preference is given to keeping the
+ * the window as close to the requested configuration as possible.  If
+ * successful, new_win, vout->win, and crop are updated.
+ * Returns zero if successful, or -EINVAL if the requested preview window is
+ * impossible and cannot reasonably be adjusted.
+ */
+int omap_vout_new_window(struct v4l2_rect *crop,
+		struct v4l2_window *win, struct v4l2_framebuffer *fbuf,
+		struct v4l2_window *new_win)
+{
+	int err;
+
+	err = omap_vout_try_window(fbuf, new_win);
+	if (err)
+		return err;
+
+	/* update our preview window */
+	win->w = new_win->w;
+	win->field = new_win->field;
+	win->chromakey = new_win->chromakey;
+
+	/* Adjust the cropping window to allow for resizing limitation */
+	if (omap_vout_dss_omap24xx()) {
+		/* For 24xx limit is 8x to 1/2x scaling. */
+		if ((crop->height/win->w.height) >= 2)
+			crop->height = win->w.height * 2;
+
+		if ((crop->width/win->w.width) >= 2)
+			crop->width = win->w.width * 2;
+
+		if (crop->width > 768) {
+			/* The OMAP2420 vertical resizing line buffer is 768
+			 * pixels wide. If the cropped image is wider than
+			 * 768 pixels then it cannot be vertically resized.
+			 */
+			if (crop->height != win->w.height)
+				crop->width = 768;
+		}
+	} else if (omap_vout_dss_omap34xx()) {
+		/* For 34xx limit is 8x to 1/4x scaling. */
+		if ((crop->height/win->w.height) >= 4)
+			crop->height = win->w.height * 4;
+
+		if ((crop->width/win->w.width) >= 4)
+			crop->width = win->w.width * 4;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(omap_vout_new_window);
+
+/* Given a new cropping rectangle in new_crop, adjust the cropping rectangle to
+ * the nearest supported configuration.  The image render window in win will
+ * also be adjusted if necessary.  The preview window is adjusted such that the
+ * horizontal and vertical rescaling ratios stay constant.  If the render
+ * window would fall outside the display boundaries, the cropping rectangle
+ * will also be adjusted to maintain the rescaling ratios.  If successful, crop
+ * and win are updated.
+ * Returns zero if successful, or -EINVAL if the requested cropping rectangle is
+ * impossible and cannot reasonably be adjusted.
+ */
+int omap_vout_new_crop(struct v4l2_pix_format *pix,
+	      struct v4l2_rect *crop, struct v4l2_window *win,
+	      struct v4l2_framebuffer *fbuf, const struct v4l2_rect *new_crop)
+{
+	struct v4l2_rect try_crop;
+	unsigned long vresize, hresize;
+
+	/* make a working copy of the new_crop rectangle */
+	try_crop = *new_crop;
+
+	/* adjust the cropping rectangle so it fits in the image */
+	if (try_crop.left < 0) {
+		try_crop.width += try_crop.left;
+		try_crop.left = 0;
+	}
+	if (try_crop.top < 0) {
+		try_crop.height += try_crop.top;
+		try_crop.top = 0;
+	}
+	try_crop.width = (try_crop.width < pix->width) ?
+		try_crop.width : pix->width;
+	try_crop.height = (try_crop.height < pix->height) ?
+		try_crop.height : pix->height;
+	if (try_crop.left + try_crop.width > pix->width)
+		try_crop.width = pix->width - try_crop.left;
+	if (try_crop.top + try_crop.height > pix->height)
+		try_crop.height = pix->height - try_crop.top;
+
+	try_crop.width &= ~1;
+	try_crop.height &= ~1;
+
+	if (try_crop.width <= 0 || try_crop.height <= 0)
+		return -EINVAL;
+
+	if (omap_vout_dss_omap24xx()) {
+		if (try_crop.height != win->w.height) {
+			/* If we're resizing vertically, we can't support a
+			 * crop width wider than 768 pixels.
+			 */
+			if (try_crop.width > 768)
+				try_crop.width = 768;
+		}
+	}
+	/* vertical resizing */
+	vresize = (1024 * try_crop.height) / win->w.height;
+	if (omap_vout_dss_omap24xx() && (vresize > 2048))
+		vresize = 2048;
+	else if (omap_vout_dss_omap34xx() && (vresize > 4096))
+		vresize = 4096;
+
+	win->w.height = ((1024 * try_crop.height) / vresize) & ~1;
+	if (win->w.height == 0)
+		win->w.height = 2;
+	if (win->w.height + win->w.top > fbuf->fmt.height) {
+		/* We made the preview window extend below the bottom of the
+		 * display, so clip it to the display boundary and resize the
+		 * cropping height to maintain the vertical resizing ratio.
+		 */
+		win->w.height = (fbuf->fmt.height - win->w.top) & ~1;
+		if (try_crop.height == 0)
+			try_crop.height = 2;
+	}
+	/* horizontal resizing */
+	hresize = (1024 * try_crop.width) / win->w.width;
+	if (omap_vout_dss_omap24xx() && (hresize > 2048))
+		hresize = 2048;
+	else if (omap_vout_dss_omap34xx() && (hresize > 4096))
+		hresize = 4096;
+
+	win->w.width = ((1024 * try_crop.width) / hresize) & ~1;
+	if (win->w.width == 0)
+		win->w.width = 2;
+	if (win->w.width + win->w.left > fbuf->fmt.width) {
+		/* We made the preview window extend past the right side of the
+		 * display, so clip it to the display boundary and resize the
+		 * cropping width to maintain the horizontal resizing ratio.
+		 */
+		win->w.width = (fbuf->fmt.width - win->w.left) & ~1;
+		if (try_crop.width == 0)
+			try_crop.width = 2;
+	}
+	if (omap_vout_dss_omap24xx()) {
+		if ((try_crop.height/win->w.height) >= 2)
+			try_crop.height = win->w.height * 2;
+
+		if ((try_crop.width/win->w.width) >= 2)
+			try_crop.width = win->w.width * 2;
+
+		if (try_crop.width > 768) {
+			/* The OMAP2420 vertical resizing line buffer is
+			 * 768 pixels wide.  If the cropped image is wider
+			 * than 768 pixels then it cannot be vertically resized.
+			 */
+			if (try_crop.height != win->w.height)
+				try_crop.width = 768;
+		}
+	} else if (omap_vout_dss_omap34xx()) {
+		if ((try_crop.height/win->w.height) >= 4)
+			try_crop.height = win->w.height * 4;
+
+		if ((try_crop.width/win->w.width) >= 4)
+			try_crop.width = win->w.width * 4;
+	}
+	/* update our cropping rectangle and we're done */
+	*crop = try_crop;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(omap_vout_new_crop);
+
+/* Given a new format in pix and fbuf,  crop and win
+ * structures are initialized to default values. crop
+ * is initialized to the largest window size that will fit on the display.  The
+ * crop window is centered in the image. win is initialized to
+ * the same size as crop and is centered on the display.
+ * All sizes and offsets are constrained to be even numbers.
+ */
+void omap_vout_new_format(struct v4l2_pix_format *pix,
+		struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop,
+		struct v4l2_window *win)
+{
+	/* crop defines the preview source window in the image capture
+	 * buffer
+	 */
+	omap_vout_default_crop(pix, fbuf, crop);
+
+	/* win defines the preview target window on the display */
+	win->w.width = crop->width;
+	win->w.height = crop->height;
+	win->w.left = ((fbuf->fmt.width - win->w.width) >> 1) & ~1;
+	win->w.top = ((fbuf->fmt.height - win->w.height) >> 1) & ~1;
+}
+EXPORT_SYMBOL_GPL(omap_vout_new_format);
+
+/*
+ * Allocate buffers
+ */
+unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr)
+{
+	u32 order, size;
+	unsigned long virt_addr, addr;
+
+	size = PAGE_ALIGN(buf_size);
+	order = get_order(size);
+	virt_addr = __get_free_pages(GFP_KERNEL, order);
+	addr = virt_addr;
+
+	if (virt_addr) {
+		while (size > 0) {
+			SetPageReserved(virt_to_page(addr));
+			addr += PAGE_SIZE;
+			size -= PAGE_SIZE;
+		}
+	}
+	*phys_addr = (u32) virt_to_phys((void *) virt_addr);
+	return virt_addr;
+}
+
+/*
+ * Free buffers
+ */
+void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size)
+{
+	u32 order, size;
+	unsigned long addr = virtaddr;
+
+	size = PAGE_ALIGN(buf_size);
+	order = get_order(size);
+
+	while (size > 0) {
+		ClearPageReserved(virt_to_page(addr));
+		addr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+	free_pages((unsigned long) virtaddr, order);
+}
+
+bool omap_vout_dss_omap24xx(void)
+{
+	return omapdss_get_version() == OMAPDSS_VER_OMAP24xx;
+}
+
+bool omap_vout_dss_omap34xx(void)
+{
+	switch (omapdss_get_version()) {
+	case OMAPDSS_VER_OMAP34xx_ES1:
+	case OMAPDSS_VER_OMAP34xx_ES3:
+	case OMAPDSS_VER_OMAP3630:
+	case OMAPDSS_VER_AM35xx:
+		return true;
+	default:
+		return false;
+	}
+}
diff --git a/drivers/media/platform/omap/omap_voutlib.h b/drivers/media/platform/omap/omap_voutlib.h
new file mode 100644
index 000000000..f9d1c0779
--- /dev/null
+++ b/drivers/media/platform/omap/omap_voutlib.h
@@ -0,0 +1,39 @@
+/*
+ * omap_voutlib.h
+ *
+ * Copyright (C) 2010 Texas Instruments.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef OMAP_VOUTLIB_H
+#define OMAP_VOUTLIB_H
+
+void omap_vout_default_crop(struct v4l2_pix_format *pix,
+		struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop);
+
+int omap_vout_new_crop(struct v4l2_pix_format *pix,
+		struct v4l2_rect *crop, struct v4l2_window *win,
+		struct v4l2_framebuffer *fbuf,
+		const struct v4l2_rect *new_crop);
+
+int omap_vout_try_window(struct v4l2_framebuffer *fbuf,
+		struct v4l2_window *new_win);
+
+int omap_vout_new_window(struct v4l2_rect *crop,
+		struct v4l2_window *win, struct v4l2_framebuffer *fbuf,
+		struct v4l2_window *new_win);
+
+void omap_vout_new_format(struct v4l2_pix_format *pix,
+		struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop,
+		struct v4l2_window *win);
+unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr);
+void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size);
+
+bool omap_vout_dss_omap24xx(void);
+bool omap_vout_dss_omap34xx(void);
+#endif	/* #ifndef OMAP_VOUTLIB_H */
+
-- 
cgit v1.2.3