[PATCHv2 4/4] OMAP 2/3 V4L2 Display Driver

@@ -62,6 +62,34 @@ static struct platform_device omap3evm_smc911x_device = {
 	.resource	= &omap3evm_smc911x_resources [0],
 };
 
+static struct resource omap3evm_vout1_resource[] = {
+	[0] =	{
+		.start  = OMAP34XX_VRFB_CTX4,
+		.end    = (OMAP34XX_VRFB_CTX4 + OMAP34XX_VRFB_CTX_SIZE - 1),
+		.flags  = IORESOURCE_MEM,
+	},
+};
+static struct resource omap3evm_vout2_resource[] = {
+	[0] =	{
+		.start  = OMAP34XX_VRFB_CTX8,
+		.end    = (OMAP34XX_VRFB_CTX8 + OMAP34XX_VRFB_CTX_SIZE - 1),
+		.flags  = IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device omap3evm_vout1_device = {
+	.name			= "omap_vout",
+	.num_resources	= ARRAY_SIZE(omap3evm_vout1_resource),
+	.resource 		= &omap3evm_vout1_resource[0],
+	.id		= 1,
+};
+static struct platform_device omap3evm_vout2_device = {
+	.name			= "omap_vout",
+	.num_resources	= ARRAY_SIZE(omap3evm_vout2_resource),
+	.resource 		= &omap3evm_vout2_resource[0],
+	.id		= 2,
+};
+
 static inline void __init omap3evm_init_smc911x(void)
 {
 	int eth_cs;

@@ -236,6 +264,8 @@ static struct platform_device *omap3_evm_devices[] __initdata = {
 	&omap3_evm_lcd_device,
 	&omap3evm_smc911x_device,
 	&omap3evm_tv_device,
+	&omap3evm_vout1_device,
+	&omap3evm_vout2_device,
 };
 
 static void __init omap3_evm_init(void)

@@ -56,6 +56,19 @@
 #define OMAP34XX_SR1_BASE	0x480C9000
 #define OMAP34XX_SR2_BASE	0x480CB000
 
+#define OMAP34XX_VRFB_CTX0	0x70000000
+#define OMAP34XX_VRFB_CTX1	0x74000000
+#define OMAP34XX_VRFB_CTX2	0x78000000
+#define OMAP34XX_VRFB_CTX3	0x7C000000
+#define OMAP34XX_VRFB_CTX4	0xE0000000
+#define OMAP34XX_VRFB_CTX5	0xE4000000
+#define OMAP34XX_VRFB_CTX6	0xE8000000
+#define OMAP34XX_VRFB_CTX7	0xEC000000
+#define OMAP34XX_VRFB_CTX8	0xF0000000
+#define OMAP34XX_VRFB_CTX9	0xF4000000
+#define OMAP34XX_VRFB_CTX10	0xF8000000
+#define OMAP34XX_VRFB_CTX11	0xFC000000
+#define OMAP34XX_VRFB_CTX_SIZE	0x4000000
 
 #if defined(CONFIG_ARCH_OMAP3430)
 

@@ -762,8 +762,6 @@ source "drivers/media/video/au0828/Kconfig"
 
 source "drivers/media/video/ivtv/Kconfig"
 
-source drivers/media/video/omap/Kconfig
-
 source "drivers/media/video/cx18/Kconfig"
 
 config VIDEO_M32R_AR

@@ -802,6 +800,14 @@ config VIDEO_OMAP2
 	---help---
 	  Driver for an OMAP 2 camera controller.
 
+config VIDEO_OMAP3
+	bool "OMAP2/OMAP3 V4L2-DSS drivers"
+	depends on VIDEO_DEV && (ARCH_OMAP24XX || ARCH_OMAP34XX)
+	default y
+	help
+	  V4L2 DSS driver support for OMAP2/3 based boards.
+
+source "drivers/media/video/omap/Kconfig"
 
 #
 # USB Multimedia device configuration

@@ -107,6 +107,8 @@ obj-$(CONFIG_VIDEO_CAFE_CCIC) += cafe_ccic.o
 obj-$(CONFIG_VIDEO_OV7670) 	+= ov7670.o
 
 obj-$(CONFIG_VIDEO_OMAP2) += omap24xxcam.o omap24xxcam-dma.o
+obj-$(CONFIG_VIDEO_OMAP3) += omap/
+
 obj-$(CONFIG_VIDEO_TCM825X) += tcm825x.o
 obj-$(CONFIG_VIDEO_OV9640)	+= ov9640.o
 

@@ -5,3 +5,15 @@ config VIDEO_OMAP_CAMERA
 	depends on VIDEO_DEV && (ARCH_OMAP16XX || ARCH_OMAP24XX)
 	help
 	  V4L2 camera driver support for OMAP1/2 based boards.
+
+config VIDEO_OMAP_VIDEOLIB
+	tristate "OMAP Video out library"
+	depends on VIDEO_OMAP3
+	default VIDEO_OMAP3
+
+config VIDEO_OMAP_VIDEOOUT
+	tristate "OMAP Video out driver"
+	select VIDEOBUF_DMA_SG
+	select VIDEOBUF_GEN
+	depends on VIDEO_OMAP3
+	default VIDEO_OMAP3

@@ -3,6 +3,8 @@
 obj-$(CONFIG_VIDEO_OMAP_CAMERA) += omapcamera.o
 
 objs-y$(CONFIG_ARCH_OMAP16XX) += omap16xxcam.o camera_core.o
+obj-$(CONFIG_VIDEO_OMAP_VIDEOLIB) += omap_voutlib.o
+obj-$(CONFIG_VIDEO_OMAP_VIDEOOUT) += omap_vout.o
 
 omapcamera-objs := $(objs-yy)
 

@@ -0,0 +1,3052 @@
+/*
+ * drivers/media/video/omap/omap_vout.c
+ *
+ * Copyright (C) 2005-2006 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) 2004 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
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/interrupt.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/videodev2.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <media/videobuf-dma-sg.h>
+#include <linux/input.h>
+#include <linux/dma-mapping.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-ioctl.h>
+#ifdef CONFIG_PM
+#include <linux/notifier.h>
+#include <linux/pm.h>
+#endif
+#ifdef CONFIG_DPM
+#include <linux/dpm.h>
+#endif
+
+#include <mach/omap-dss.h>
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/semaphore.h>
+#include <asm/processor.h>
+#include <mach/dma.h>
+
+#include "omap_voutlib.h"
+
+/*
+ * Un-comment this to use Debug Write call
+ */
+/* #define DEBUG_ALLOW_WRITE */
+
+#include "omap_voutdef.h"
+
+unsigned long timeout;
+
+/*
+ * Uncomment this if debugging support needs to be enabled
+ */
+
+/* #define DEBUG */
+
+#undef DEBUG
+#ifdef DEBUG
+#define DPRINTK(ARGS...)  (printk(KERN_DEBUG "<%s>: ", __func__); \
+				printk(KERN_DEBUG ARGS))
+#else
+#define DPRINTK(x...)
+#endif
+
+/*
+ * -1 means rotation support is disabled
+ * 0/90/180/270 are initial rotation angles
+ */
+
+static int rotation_support = -1;
+
+#define FIND_ROTATION_ANGLE(rot) (rot == 90) ? (270 / 90) :\
+				(rot == 270) ? (90 / 90) :\
+				(rot == 180) ? (0 / 90) : (180 / 90);
+/* configuration macros */
+#define VOUT_NAME		"omap_vout"
+
+#define D1_PAL_WIDTH		720
+#define D1_PAL_HEIGHT		576
+#define QQVGA_WIDTH			160
+#define QQVGA_HEIGHT		120
+
+#define DMA_CHAN_ALLOTED	1
+#define DMA_CHAN_NOT_ALLOTED	0
+#define NUM_OF_VIDEO_CHANNELS	2
+#define VRF_SIZE		(MAX_PIXELS_PER_LINE * MAX_LINES * 4)
+#define SMS_RGB_PIXSIZE		2
+#define SMS_YUYV_PIXSIZE	4
+#define VRFB_TX_TIMEOUT		1000
+
+#define VID_MAX_WIDTH		D1_PAL_WIDTH	/* Largest width */
+#define VID_MAX_HEIGHT		D1_PAL_HEIGHT	/* Largest height */
+#define VID_MIN_WIDTH		0
+#define VID_MIN_HEIGHT		0
+
+#define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4)
+
+static struct omap_vout_device *saved_v1out, *saved_v2out;
+
+#define STREAMING_IS_ON()	((saved_v1out && saved_v1out->streaming) || \
+				(saved_v2out && saved_v2out->streaming))
+
+/*
+ * this is the layer being linked to (slave layer). possible values are:
+ * OMAP_VIDEO1:  V1 is linked to V2. V1 uses V2's pix and crop.
+ * OMAP_VIDEO2:  V2 is linked to V1. V2 uses V1's pix and crop.
+ * -1: no link.
+ */
+
+static int vout_linked;
+static spinlock_t vout_link_lock;
+
+static struct videobuf_queue_ops video_vbq_ops;
+
+static u32 video1_numbuffers = 3;
+static u32 video2_numbuffers = 3;
+static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
+static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE;
+module_param(video1_numbuffers, uint, S_IRUGO);
+module_param(video2_numbuffers, uint, S_IRUGO);
+module_param(video1_bufsize, uint, S_IRUGO);
+module_param(video2_bufsize, uint, S_IRUGO);
+
+static void omap_vout_isr(void *arg, struct pt_regs *regs,
+		      unsigned int irqstatus);
+static void omap_vout_cleanup_device(int vid);
+/* module parameters */
+
+/*
+ * Maximum amount of memory to use for rendering buffers.
+ * Default is enough to four (RGB24) VGA buffers.
+ */
+#define MAX_ALLOWED_VIDBUFFERS            4
+
+static struct v4l2_queryctrl omap_vout_qctrl[] = {
+	{
+		.id            = V4L2_CID_ROTATION,
+		.name          = "Rotation",
+		.minimum       = 0,
+		.maximum       = 270,
+		.step          = 90,
+		.default_value = -1,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id            = V4L2_CID_BG_COLOR,
+		.name          = "Background Color",
+		.minimum       = 0,
+		.maximum       = 0xFFFFFF,
+		.step          = 1,
+		.default_value = 0,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id            = V4L2_CID_VFLIP,
+		.name          = "Mirroring",
+		.minimum       = 0,
+		.maximum       = 1,
+		.step          = 1,
+		.default_value = 0,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_BOOLEAN,
+	}
+};
+
+/* list of image formats supported by OMAP2 video pipelines */
+const static 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
+	  */
+	 .description = "RGB565, le",
+	 .pixelformat = V4L2_PIX_FMT_RGB565,
+	 },
+	{
+	 /* Note:  V4L2 defines RGB565X as:
+	  *
+	  *      Byte 0                    Byte 1
+	  *      b4 b3 b2 b1 b0 g5 g4 g3   g2 g1 g0 r4 r3 r2 r1 r0
+	  *
+	  * We interpret RGB565X as:
+	  *
+	  *      Byte 0                    Byte 1
+	  *      r4 r3 r2 r1 r0 g5 g4 g3   g2 g1 g0 b4 b3 b2 b1 b0
+	  */
+	 .description = "RGB565, be",
+	 .pixelformat = V4L2_PIX_FMT_RGB565X,
+	 },
+	{
+	 /* Note:  V4L2 defines RGB32 as: RGB-8-8-8-8  we use
+	  *  this for RGB24 unpack mode, the last 8 bits are ignored
+	  * */
+	 .description = "RGB32, le",
+	 .pixelformat = V4L2_PIX_FMT_RGB32,
+	 },
+	{
+	 /* Note:  V4L2 defines RGB24 as: RGB-8-8-8  we use
+	  *        this for RGB24 packed mode
+	  *
+	  */
+	 .description = "RGB24, le",
+	 .pixelformat = V4L2_PIX_FMT_RGB24,
+	 },
+	{
+	 .description = "YUYV (YUV 4:2:2), packed",
+	 .pixelformat = V4L2_PIX_FMT_YUYV,
+	 },
+	{
+	 .description = "UYVY, packed",
+	 .pixelformat = V4L2_PIX_FMT_UYVY,
+	 },
+};
+
+#define NUM_OUTPUT_FORMATS (sizeof(omap_formats)/sizeof(omap_formats[0]))
+
+struct omap_vout_std_id_name {
+	v4l2_std_id id;
+	char name[25];
+};
+struct omap_vout_std_id_name id_name[] = {
+	{V4L2_STD_NTSC_M, "ntsc_m"},
+	{V4L2_STD_NTSC_M_JP, "ntsc_j"},
+	{V4L2_STD_NTSC_443, "ntsc_443"},
+	{V4L2_STD_PAL, "pal_bdghi"},
+	{V4L2_STD_PAL_Nc, "pal_nc"},
+	{V4L2_STD_PAL_N, "pal_n"},
+	{V4L2_STD_PAL_M, "pal_m"},
+	{V4L2_STD_PAL_60, "pal_60"},
+};
+
+/* CONFIG_PM */
+#ifdef CONFIG_PM
+#define omap_vout_suspend_lockout(s, f) \
+	if ((s)->suspended) {\
+		if ((f)->f_flags & O_NONBLOCK)\
+			return -EBUSY;\
+		wait_event_interruptible((s)->suspend_wq, \
+					(s)->suspended == 0);\
+	}
+#else
+#define omap_vout_suspend_lockout(s, f) do {(s)->suspended = 0; } while (0)
+#endif
+
+void
+omap_vout_config_vlayer(int ltype, struct v4l2_pix_format *pix,
+			   struct v4l2_rect *crop, struct v4l2_window *win,
+			   int rotation_deg, int mirroring)
+{
+
+	int vid_position_x, vid_position_y, ps = 2, vr_ps = 1;
+	unsigned long vid_attributes = 0;
+	struct omap_scaling_params scale_params;
+	struct omap_video_params vid_params;
+	int winheight, winwidth, cropheight, cropwidth, pixheight,
+	    pixwidth;
+	int cleft, ctop;
+	int panelwidth, panelheight, row_inc_value = 0, pixel_inc_value =
+	    0;
+	int flicker_filter = 0;
+	int output_dev;
+	int v;
+	int full_range_conversion = 0;
+	int temp = 0;
+	output_dev = omap_disp_get_output_dev(ltype);
+
+	if (ltype == OMAP_VIDEO1)
+		v = 0;
+	else if (ltype == OMAP_VIDEO2)
+		v = 1;
+	else
+		return;
+
+	if ((output_dev == OMAP_OUTPUT_TV) &&
+	    ((win->w.width == crop->width)
+	     && (win->w.height == crop->height)))
+		flicker_filter = 1;
+
+	/* make sure the video overlay is disabled before we reconfigure it */
+	omap_disp_disable_layer(ltype);
+
+	/* configure the video attributes register */
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
+		if (pix->pixelformat == V4L2_PIX_FMT_YUYV) {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_YUV2;
+			vid_attributes |=
+				DISPC_VID_ATTRIBUTES_VIDCOLORCONVENABLE;
+		} else {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_UYVY;
+			vid_attributes |=
+				DISPC_VID_ATTRIBUTES_VIDCOLORCONVENABLE;
+		}
+
+		if (mirroring == 1 || rotation_deg >= 0) {
+			/*
+			 * ps      - In VRFB space the pixel size for YUYV/UYVY
+			 * is 4 bytes
+			 * vr_ps - Actual pixel size for YUYV/UYVY  is 2 bytes
+			 */
+			ps = 4;
+			vr_ps = 2;
+		}
+		if (rotation_deg >= 0) {
+			if (mirroring == 1) {
+				vid_attributes |= (rotation_deg == 90) ?
+					((0x3) << DISPC_VID_ATTRIBUTES_VIDROT) :
+					(rotation_deg == 270) ?
+					((0x1) << DISPC_VID_ATTRIBUTES_VIDROT) :
+					(rotation_deg == 0) ?
+					(0x2 << DISPC_VID_ATTRIBUTES_VIDROT) :
+					(0 << DISPC_VID_ATTRIBUTES_VIDROT);
+			} else {
+				vid_attributes |= (rotation_deg == 90) ?
+					((0x3) << DISPC_VID_ATTRIBUTES_VIDROT) :
+					(rotation_deg == 270) ?
+					((0x1) << DISPC_VID_ATTRIBUTES_VIDROT) :
+					((rotation_deg / 90) <<
+					 DISPC_VID_ATTRIBUTES_VIDROT);
+			}
+			vid_attributes |=
+				(rotation_deg == 90 || rotation_deg == 270) ?
+				(1 << DISPC_VID_ATTRIBUTES_VIDROWREPEAT) :
+				(0 << DISPC_VID_ATTRIBUTES_VIDROWREPEAT);
+		}
+		if (mirroring == 1 && rotation_deg == -1)
+			vid_attributes |= (0x2 << DISPC_VID_ATTRIBUTES_VIDROT);
+
+		break;
+	case V4L2_PIX_FMT_RGB24:
+		ps = 3;		/* pixel size is 3 bytes */
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_RGB24P;
+		break;
+
+		/* The picture format is a bit confusing in V4L2.. as per
+		 * the V4L2 spec RGB32 and BGR32 are always with alpha bit
+		 * enabled.. (i.e always in packed mode) */
+	case V4L2_PIX_FMT_RGB32:
+		ps = 4;		/* pixel size is 4 bytes */
+		if ((system_rev < OMAP3430_REV_ES2_0)
+		    || (ltype == OMAP_VIDEO1)) {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_RGB24;
+		} else {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_ARGB32;
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDENDIANNESS;
+		}
+		break;
+	case V4L2_PIX_FMT_BGR32:
+		ps = 4;		/* pixel size is 4 bytes */
+		if ((system_rev < OMAP3430_REV_ES2_0)
+		    || (ltype == OMAP_VIDEO1)) {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_RGB24;
+		} else {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_ARGB32;
+		}
+		break;
+	case V4L2_PIX_FMT_RGB565:
+	default:
+		ps = 2;		/* pixel size is 2 bytes */
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_RGB16;
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDREPLICATIONENABLE;
+		break;
+	case V4L2_PIX_FMT_RGB565X:
+		ps = 2;		/* pixel size is 2 bytes */
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDFORMAT_RGB16;
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDENDIANNESS;
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDREPLICATIONENABLE;
+		break;
+	}
+
+	if (output_dev == OMAP_OUTPUT_TV)
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDCHANNELOUT;
+
+	/* Enable 16 x 32 burst size */
+	vid_attributes |= DISPC_VID_ATTRIBUTES_VIDBURSTSIZE_BURST16X32;
+
+	/* Set FIFO */
+	omap_disp_set_fifothreshold(v);
+
+	if (pix->colorspace == V4L2_COLORSPACE_JPEG ||
+	    pix->colorspace == V4L2_COLORSPACE_SRGB) {
+		full_range_conversion = 1;
+	}
+	/* Set the color converion parameters */
+	omap_disp_set_colorconv(v, full_range_conversion);
+
+	if (rotation_deg == 90 || rotation_deg == 270) {
+		winheight = win->w.width;
+		winwidth = win->w.height;
+		cropheight = crop->width;
+		cropwidth = crop->height;
+		pixheight = pix->width;
+		pixwidth = pix->height;
+		cleft = crop->top;
+		ctop = crop->left;
+	} else {
+		winwidth = win->w.width;
+		winheight = win->w.height;
+		cropwidth = crop->width;
+		cropheight = crop->height;
+		pixheight = pix->height;
+		pixwidth = pix->width;
+		ctop = crop->top;
+		cleft = crop->left;
+	}
+
+	if (winwidth != cropwidth)
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDRESIZEENABLE_HRESIZE;
+	if (winheight != cropheight) {
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDRESIZEENABLE_VRESIZE;
+		if (winheight < cropheight) {
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDVRESIZECONF;
+		} else {
+			/* Use Five tap filter for vertical up scaling */
+			vid_attributes |= DISPC_VID_ATTRIBUTES_VIDVERTICALTAPS;
+		}
+	}
+
+	if (flicker_filter == 1) {
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDRESIZEENABLE_VRESIZE;
+		vid_attributes |= DISPC_VID_ATTRIBUTES_VIDVRESIZECONF;
+	}
+	omap_disp_set_vidattributes(v, vid_attributes);
+
+	scale_params.win_width = winwidth;
+	scale_params.crop_width = cropwidth;
+	scale_params.win_height = winheight;
+	scale_params.crop_height = cropheight;
+	scale_params.flicker_filter = flicker_filter;
+	scale_params.video_layer = v;
+	omap_disp_set_scaling(&scale_params);
+
+	omap_disp_get_panel_size(output_dev, &panelwidth, &panelheight);
+
+	/* configure the target window on the display */
+	switch (rotation_deg) {
+
+	case 90:
+		vid_position_y = (panelheight - win->w.width) - win->w.left;
+		vid_position_x = win->w.top;
+		break;
+
+	case 180:
+		vid_position_x = (panelwidth - win->w.width) - win->w.left;
+		vid_position_y = (panelheight - win->w.height) - win->w.top;
+		break;
+
+	case 270:
+		vid_position_y = win->w.left;
+		vid_position_x = (panelwidth - win->w.height) - win->w.top;
+		break;
+
+	default:
+		vid_position_x = win->w.left;
+		vid_position_y = win->w.top;
+		break;
+	}
+
+	if (output_dev == OMAP_OUTPUT_TV)
+		vid_position_y = vid_position_y / 2;
+
+	vid_params.vid_position =
+		((vid_position_x << DISPC_VID_POSITION_VIDPOSX_SHIFT) &
+		DISPC_VID_POSITION_VIDPOSX) |
+		((vid_position_y << DISPC_VID_POSITION_VIDPOSY_SHIFT) &
+		 DISPC_VID_POSITION_VIDPOSY);
+
+	/*
+	 * If Scaling is enabled for TV then the window height should be
+	 * divided by two
+	 */
+	if (((output_dev == OMAP_OUTPUT_TV) &&
+	     (winheight != cropheight)) || flicker_filter) {
+		vid_params.vid_size =
+			(((winwidth - 1) << DISPC_VID_SIZE_VIDSIZEX_SHIFT) &
+			DISPC_VID_SIZE_VIDSIZEX) | ((((winheight - 1) / 2) <<
+			DISPC_VID_SIZE_VIDSIZEY_SHIFT) &
+			DISPC_VID_SIZE_VIDSIZEY);
+	} else {
+		vid_params.vid_size =
+			(((winwidth - 1) << DISPC_VID_SIZE_VIDSIZEX_SHIFT) &
+			DISPC_VID_SIZE_VIDSIZEX) | (((winheight - 1)
+			<< DISPC_VID_SIZE_VIDSIZEY_SHIFT) &
+			DISPC_VID_SIZE_VIDSIZEY);
+	}
+
+	/* configure the source window in the framebuffer */
+	if (flicker_filter == 1) {
+		vid_params.vid_picture_size =
+			(((cropwidth - 1) <<
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEX_SHIFT) &
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEX) |
+			(((cropheight - 1) <<
+			  DISPC_VID_PICTURE_SIZE_VIDORGSIZEY_SHIFT)
+		       & DISPC_VID_PICTURE_SIZE_VIDORGSIZEY);
+	} else if ((output_dev == OMAP_OUTPUT_TV)
+		   && (flicker_filter == 0)) {
+		vid_params.vid_picture_size =
+			(((cropwidth - 1) <<
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEX_SHIFT) &
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEX) |
+			(((cropheight / 2 - 1) <<
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEY_SHIFT) &
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEY);
+	} else {
+		vid_params.vid_picture_size = (((cropwidth - 1)
+			<< DISPC_VID_PICTURE_SIZE_VIDORGSIZEX_SHIFT) &
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEX) |
+			(((cropheight - 1) <<
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEY_SHIFT) &
+			DISPC_VID_PICTURE_SIZE_VIDORGSIZEY);
+	}
+	vid_params.video_layer = v;
+	omap_disp_set_vid_params(&vid_params);
+
+	switch (mirroring) {
+	case 0:		/* No mirroring */
+		if (rotation_deg == 90 || rotation_deg == 270) {
+			row_inc_value = 1 + (MAX_PIXELS_PER_LINE - pixwidth +
+				 (pixwidth - cropwidth - cleft) + cleft) * ps;
+
+		} else if (rotation_deg == 180 || rotation_deg == 0) {
+			if (V4L2_PIX_FMT_YUYV == pix->pixelformat
+				|| V4L2_PIX_FMT_UYVY == pix->pixelformat) {
+				temp = MAX_PIXELS_PER_LINE - (pixwidth / vr_ps);
+				temp += (pixwidth - cropwidth - cleft) / vr_ps;
+				row_inc_value = ((temp + (cleft/vr_ps)) * ps);
+				row_inc_value++;
+
+			} else
+				row_inc_value = 1 + (MAX_PIXELS_PER_LINE -
+					pixwidth + (pixwidth - cropwidth -
+					cleft) + cleft) * ps;
+		} else {
+			row_inc_value = 1 + (pix->width * ps) - cropwidth * ps;
+		}
+		pixel_inc_value = 1;
+		break;
+
+	case 1:		/* Mirroring */
+		if (rotation_deg == 90 || rotation_deg == 270) {
+			row_inc_value = (-(MAX_PIXELS_PER_LINE + cropwidth) *
+					ps) + 1;
+			pixel_inc_value = 1;
+		} else if (rotation_deg == 180 || rotation_deg == 0) {
+			row_inc_value = (-(MAX_PIXELS_PER_LINE +
+					(cropwidth / vr_ps)) * ps) + 1;
+			pixel_inc_value = 1;
+		} else {
+			row_inc_value = 2 * ((cropwidth / vr_ps) - 1) *
+				ps + 1 + ((pix->width * ps) / vr_ps) -
+				(cropwidth / vr_ps) * ps;
+			pixel_inc_value = (-2 * ps) + 1;
+		}
+		break;
+	}			/* Mirroring Switch */
+
+	/*
+	 * For LCD row inc and pixel inc
+	 */
+	omap_disp_set_dma_params(ltype, OMAP_OUTPUT_LCD,
+				  0, 0, row_inc_value, pixel_inc_value);
+
+	if (output_dev == OMAP_OUTPUT_LCD || flicker_filter == 1) {
+		omap_disp_set_row_pix_inc_values(v, row_inc_value,
+				pixel_inc_value);
+	}
+	/*
+	 * For TV the row increment should be done twice as the
+	 * TV operates in interlaced mode
+	 */
+	else {
+		if (rotation_deg >= 0) {
+			if (mirroring == 1)
+				row_inc_value = row_inc_value -
+					MAX_PIXELS_PER_LINE * ps;
+			else
+				row_inc_value = row_inc_value +
+					MAX_PIXELS_PER_LINE * ps;
+		} else {
+			if (mirroring == 1)
+				row_inc_value = row_inc_value +
+					pix->width * ps / vr_ps;
+			else
+				row_inc_value =
+				    row_inc_value + pix->width * ps;
+		}
+		omap_disp_set_row_pix_inc_values(v, row_inc_value,
+						  pixel_inc_value);
+	}
+	/*
+	 * Store BA0 BA1 for TV, BA1 points to the alternate row
+	 */
+	if (flicker_filter == 1) {
+		;
+	} else if (rotation_deg >= 0) {
+		if (mirroring == 1)
+			row_inc_value = row_inc_value -
+				MAX_PIXELS_PER_LINE * ps;
+		else
+			row_inc_value = row_inc_value +
+				MAX_PIXELS_PER_LINE * ps;
+	} else {
+		if (mirroring == 1)
+			row_inc_value = row_inc_value +
+				pix->width * ps / vr_ps;
+		else
+			row_inc_value = row_inc_value + pix->width * ps;
+
+	}
+	omap_disp_set_dma_params(ltype, OMAP_OUTPUT_TV,
+				  0, 0, row_inc_value, pixel_inc_value);
+
+	omap_set_crop_layer_parameters(v, cropwidth, cropheight);
+
+	omap_disp_save_initstate(ltype);
+
+}
+
+static unsigned long
+omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr)
+{
+	unsigned long virt_addr, addr;
+	u32 order, size;
+	size = PAGE_ALIGN(buf_size);
+	order = get_order(size);
+	virt_addr = __get_free_pages(GFP_KERNEL | GFP_DMA, 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;
+}
+
+static void
+omap_vout_free_buffer(unsigned long virtaddr, u32 phys_addr,
+			 u32 buf_size)
+{
+	unsigned long addr = virtaddr;
+	u32 order, size;
+	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);
+}
+
+static int omap_vout_try_format(struct v4l2_pix_format *pix,
+				struct v4l2_pix_format *def_pix)
+{
+	int ifmt, bpp = 0;
+
+	if (pix->width > VID_MAX_WIDTH)
+		pix->width = VID_MAX_WIDTH;
+	if (pix->height > VID_MAX_HEIGHT)
+		pix->height = VID_MAX_HEIGHT;
+
+	if (pix->width <= VID_MIN_WIDTH)
+		pix->width = def_pix->width;
+	if (pix->height <= VID_MIN_HEIGHT)
+		pix->height = def_pix->height;
+
+	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 */ V4L2_FIELD_ANY;
+	pix->priv = 0;
+
+	switch (pix->pixelformat) {
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
+	default:
+		pix->colorspace = V4L2_COLORSPACE_JPEG;
+		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;
+}
+
+/*
+ * omap_vout_uservirt_to_phys: This inline function is used to convert user
+ * space virtual address to physical address.
+ */
+static inline u32 omap_vout_uservirt_to_phys(u32 virtp)
+{
+	unsigned long physp = 0;
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+
+	vma = find_vma(mm, virtp);
+	/* For kernel direct-mapped memory, take the easy way */
+	if (virtp >= PAGE_OFFSET) {
+		physp = virt_to_phys((void *) virtp);
+	} else if ((vma) && (vma->vm_flags & VM_IO)
+		   && (vma->vm_pgoff)) {
+		/* this will catch, kernel-allocated,
+		   mmaped-to-usermode addresses */
+		physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start);
+	} else {
+		/* otherwise, use get_user_pages() for general userland pages */
+		int res, nr_pages = 1;
+		struct page *pages;
+		down_read(&current->mm->mmap_sem);
+
+		res = get_user_pages(current, current->mm, virtp, nr_pages,
+				1, 0, &pages, NULL);
+		up_read(&current->mm->mmap_sem);
+
+		if (res == nr_pages) {
+			physp =  __pa(page_address(&pages[0]) +
+					(virtp & ~PAGE_MASK));
+		} else {
+			printk(KERN_WARNING "omap_vout_uservirt_to_phys:\
+					get_user_pages failed\n");
+			return 0;
+		}
+	}
+
+	return physp;
+}
+
+static void omap_vout_vrfb_dma_tx_callback(int lch, u16 ch_status, void *data)
+{
+	struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data;
+	t->tx_status = 1;
+	wake_up_interruptible(&t->wait);
+}
+
+static void
+omap_vout_sync(struct omap_vout_device *dest,
+		  struct omap_vout_device *src)
+{
+	int rotation = -1;
+
+	if (dest->rotation >= 0)
+		rotation = dest->rotation;
+	/*
+	 * once linked, dest shares src's framebuffer, pix and crop
+	 */
+
+	dest->pix = src->pix;
+	dest->crop = src->crop;
+
+	if (src->streaming)
+		/* make sure the video overlay is disabled before
+		 * we reconfigure it
+		 */
+		omap_vout_config_vlayer(dest->vid, &dest->pix, &dest->crop,
+				&dest->win, rotation, dest->mirror);
+
+}
+
+/* Buffer setup function is called by videobuf layer when REQBUF ioctl is
+ * called. This is used to setup buffers and return size and count of
+ * buffers allocated. After the call to this buffer, videobuf layer will
+ * setup buffer queue depending on the size and count of buffers
+ */
+static int
+omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count,
+			  unsigned int *size)
+{
+	struct omap_vout_fh *fh = (struct omap_vout_fh *) q->priv_data;
+	struct omap_vout_device *vout = fh->vout;
+	int startindex = 0, i, j;
+	u32 phy_addr = 0, virt_addr = 0;
+
+	if (!vout)
+		return -EINVAL;
+
+	if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type)
+		return -EINVAL;
+
+	startindex = (vout->vid == OMAP_VIDEO1) ?
+		video1_numbuffers : video2_numbuffers;
+	if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex)
+		*count = startindex;
+
+	if (vout->rotation != -1 && *count > 4)
+		*count = 4;
+
+	/* If rotation is enabled, allocate memory for VRFB space also */
+	if (vout->rotation >= 0) {
+		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]) {
+				if (V4L2_MEMORY_MMAP == vout->memory
+				    && i >= startindex)
+					break;
+				for (j = 0; j < i; j++) {
+					omap_vout_free_buffer(
+						vout->smsshado_virt_addr[j],
+						vout->smsshado_phy_addr[j],
+						vout->smsshado_size);
+					vout->smsshado_virt_addr[j] = 0;
+					vout->smsshado_phy_addr[j] = 0;
+				}
+				*count = 0;
+				return -ENOMEM;
+			}
+
+			memset((void *) vout->smsshado_virt_addr[i], 0,
+			       vout->smsshado_size);
+
+			if (vout->rotation == 90 || vout->rotation == 270) {
+				omap_disp_set_vrfb(vout->vrfb_context[i],
+					vout->smsshado_phy_addr[i],
+					vout->pix.height,
+					vout->pix.width,
+					vout->bpp * vout->vrfb_bpp);
+			} else {
+				omap_disp_set_vrfb(vout->vrfb_context[i],
+					vout->smsshado_phy_addr[i],
+					vout->pix.width,
+					vout->pix.height,
+					vout->bpp * vout->vrfb_bpp);
+			}
+		}
+	}
+
+	if (V4L2_MEMORY_MMAP != vout->memory)
+		return 0;
+
+	*size = vout->buffer_size;
+	startindex = (vout->vid == OMAP_VIDEO1) ?
+		video1_numbuffers : video2_numbuffers;
+	for (i = startindex; i < *count; i++) {
+		vout->buffer_size = *size;
+
+		virt_addr = omap_vout_alloc_buffer(vout->buffer_size,
+				&phy_addr);
+		if (!virt_addr) {
+			if (vout->rotation < 0)
+				break;
+			for (j = i; j < *count; j++) {
+				omap_vout_free_buffer(
+						vout->smsshado_virt_addr[j],
+						vout->smsshado_phy_addr[j],
+						vout->smsshado_size);
+				vout->smsshado_virt_addr[j] = 0;
+				vout->smsshado_phy_addr[j] = 0;
+			}
+			break;
+		}
+
+		vout->buf_virt_addr[i] = virt_addr;
+		vout->buf_phy_addr[i] = phy_addr;
+	}
+
+	*count = vout->buffer_allocated = i;
+	return 0;
+}
+
+/* This function will be called when VIDIOC_QBUF ioctl is called.
+ * It prepare buffers before give out for the display. This function
+ * user space virtual address into physical address if userptr memory
+ * exchange mechanism is used. If rotation is enabled, it copies entire
+ * buffer into VRFB memory space before giving it to the DSS.
+ */
+static int
+omap_vout_buffer_prepare(struct videobuf_queue *q,
+			    struct videobuf_buffer *vb,
+			    enum v4l2_field field)
+{
+	struct omap_vout_fh *fh = (struct omap_vout_fh *) q->priv_data;
+	struct omap_vout_device *vout = fh->vout;
+	u32 dest_frame_index = 0, src_element_index = 0;
+	u32 dest_element_index = 0, src_frame_index = 0;
+	u32 elem_count = 0, frame_count = 0, pixsize = 2, mir_rot_deg = 0;
+	struct videobuf_dmabuf *dmabuf = NULL;
+
+	if (VIDEOBUF_NEEDS_INIT == vb->state) {
+		vb->width = vout->pix.width;
+		vb->height = vout->pix.height;
+		vb->size = vb->width * vb->height * vout->bpp;
+		vb->field = field;
+	}
+	vb->state = VIDEOBUF_PREPARED;
+	/* if user pointer memory mechanism is used, get the physical
+	 * address of the buffer
+	 */
+	if (V4L2_MEMORY_USERPTR == vb->memory) {
+		if (0 == vb->baddr)
+			return -EINVAL;
+		/* Virtual address */
+		/* priv points to struct videobuf_pci_sg_memory. But we went
+		 * pointer to videobuf_dmabuf, which is member of
+		 * videobuf_pci_sg_memory */
+		dmabuf = videobuf_to_dma(q->bufs[vb->i]);
+		dmabuf->vmalloc = (void *) vb->baddr;
+
+		/* Physical address */
+		dmabuf->bus_addr =
+		    (dma_addr_t) omap_vout_uservirt_to_phys(vb->baddr);
+	}
+
+	if (vout->rotation >= 0) {
+		dmabuf = videobuf_to_dma(q->bufs[vb->i]);
+
+		/* 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;
+		/*
+		 * DMA transfer in double index mode
+		 */
+
+		/* Frame index */
+		dest_frame_index = ((MAX_PIXELS_PER_LINE * pixsize) -
+				    (vout->pix.width * vout->bpp)) + 1;
+
+		/* Source and destination parameters */
+		src_element_index = 0;
+		src_frame_index = 0;
+		dest_element_index = 1;
+
+		/* Number of elements per frame */
+		elem_count = vout->pix.width * vout->bpp;
+		frame_count = vout->pix.height;
+		vout->vrfb_dma_tx.tx_status = 0;
+		omap_set_dma_transfer_params(vout->vrfb_dma_tx.dma_ch,
+					     OMAP_DMA_DATA_TYPE_S32,
+					     (elem_count / 4), frame_count,
+					     OMAP_DMA_SYNC_ELEMENT,
+					     vout->vrfb_dma_tx.dev_id,
+					     0x0);
+		/* src_port required only for OMAP1 */
+		omap_set_dma_src_params(vout->vrfb_dma_tx.dma_ch, 0,
+					OMAP_DMA_AMODE_POST_INC,
+					dmabuf->bus_addr,
+					src_element_index,
+					src_frame_index);
+
+		/*set dma source burst mode for VRFB */
+		omap_set_dma_src_burst_mode(vout->vrfb_dma_tx.dma_ch,
+					    OMAP_DMA_DATA_BURST_16);
+
+		if (vout->mirror == 1) {
+			/* Following is used to select appropriate VRFB
+			 * memory space for rotation with mirroring */
+			mir_rot_deg = FIND_ROTATION_ANGLE(vout->rotation);
+			/* dest_port required only for OMAP1 */
+			omap_set_dma_dest_params(vout->vrfb_dma_tx.dma_ch, 0,
+					OMAP_DMA_AMODE_DOUBLE_IDX,
+					vout->sms_rot_phy[vb->i][mir_rot_deg],
+					dest_element_index, dest_frame_index);
+		} else {	/* No Mirroring */
+			/* dest_port required only for OMAP1 */
+			omap_set_dma_dest_params(vout->vrfb_dma_tx.dma_ch, 0,
+				 OMAP_DMA_AMODE_DOUBLE_IDX,
+				 vout->sms_rot_phy[vb->i][vout->rotation / 90],
+				 dest_element_index, dest_frame_index);
+		}
+
+		/*set dma dest burst mode for VRFB */
+		omap_set_dma_dest_burst_mode(vout->vrfb_dma_tx.dma_ch,
+					     OMAP_DMA_DATA_BURST_16);
+		omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE, 0x20, 0);
+
+		omap_start_dma(vout->vrfb_dma_tx.dma_ch);
+		interruptible_sleep_on_timeout(&vout->vrfb_dma_tx.wait,
+					       VRFB_TX_TIMEOUT);
+
+		if (vout->vrfb_dma_tx.tx_status == 0) {
+			omap_stop_dma(vout->vrfb_dma_tx.dma_ch);
+			return -EINVAL;
+		}
+		/* Store buffers physical address into an array. Addresses
+		 * from this array will be used to configure DSS */
+		vout->queued_buf_addr[vb->i] =
+			(u8 *) vout->sms_rot_phy[vb->i][0];
+	} else {
+		dmabuf = videobuf_to_dma(q->bufs[vb->i]);
+
+		vout->queued_buf_addr[vb->i] = (u8 *) dmabuf->bus_addr;
+	}
+	return 0;
+}
+
+/* Buffer queue funtion will be called from the videobuf layer when _QBUF
+ * ioctl is called. It is used to enqueue buffer, which is ready to be
+ * displayed. */
+static void
+omap_vout_buffer_queue(struct videobuf_queue *q,
+			  struct videobuf_buffer *vb)
+{
+	struct omap_vout_fh *fh =
+	    (struct omap_vout_fh *) q->priv_data;
+	struct omap_vout_device *vout = fh->vout;
+
+	/* Driver is also maintainig a queue. So enqueue buffer in the driver
+	 * queue */
+	list_add_tail(&vb->queue, &vout->dma_queue);
+
+	vb->state = VIDEOBUF_PREPARED;
+}
+
+/* Buffer release function is called from videobuf layer to release buffer
+ * which are already allocated */
+static void
+omap_vout_buffer_release(struct videobuf_queue *q,
+			    struct videobuf_buffer *vb)
+{
+	struct omap_vout_fh *fh = (struct omap_vout_fh *) q->priv_data;
+	struct omap_vout_device *vout = fh->vout;
+
+	vb->state = VIDEOBUF_NEEDS_INIT;
+
+	if (V4L2_MEMORY_MMAP != vout->memory)
+		return;
+}
+
+static int omap_vout_calculate_offset(struct omap_vout_device *vout)
+{
+	struct v4l2_pix_format *pix = &(vout->pix);
+	struct v4l2_rect *crop = &(vout->crop);
+	struct v4l2_window *win = &(vout->win);
+	int rotation_deg;
+	int mirroring = vout->mirror;
+	int vr_ps = 1, ps = 2, temp_ps = 2;
+	int offset = 0, ctop = 0, cleft = 0, line_length = 0;
+	int *cropped_offset = &(vout->cropped_offset);
+
+	if ((omap_disp_get_output_dev(vout->vid) == OMAP_OUTPUT_TV) &&
+	    ((win->w.width == crop->width)
+	     && (win->w.height == crop->height)))
+		vout->flicker_filter = 1;
+	else
+		vout->flicker_filter = 0;
+
+	if (1 == vout->mirror && vout->rotation >= 0) {
+		rotation_deg = (vout->rotation == 90) ?
+			270 : (vout->rotation == 270) ?
+			90 : (vout->rotation ==  180) ?
+			0 : 180;
+
+	} else if (vout->rotation >= 0) {
+		rotation_deg = vout->rotation;
+	} else {
+		rotation_deg = -1;
+	}
+
+	if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
+	    V4L2_PIX_FMT_UYVY == pix->pixelformat) {
+		if (rotation_deg >= 0 || mirroring == 1) {
+			/*
+			 * 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 (rotation_deg >= 0) {
+		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_deg) {
+	case 90:
+		offset = (omap_disp_get_vrfb_offset(pix->width, ps, SIDE_H) -
+				(pix->width / vr_ps)) * ps * line_length;
+		temp_ps = ps / vr_ps;
+		if (mirroring == 0) {
+			*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 180:
+		offset = (omap_disp_get_vrfb_offset(pix->height, ps, SIDE_H) -
+				pix->height) * ps * line_length +
+				(omap_disp_get_vrfb_offset(pix->width,
+				ps, SIDE_W) - (pix->width / vr_ps)) * ps;
+		if (mirroring == 0) {
+			*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 270:
+		offset = (omap_disp_get_vrfb_offset(pix->height, ps, SIDE_W) -
+				pix->height) * ps;
+		temp_ps = ps / vr_ps;
+		if (mirroring == 0) {
+			*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 0:
+		if (mirroring == 0) {
+			*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:
+		if (mirroring == 0) {
+			*cropped_offset =
+			    line_length * ps * crop->top + crop->left * ps;
+		} else {
+			*cropped_offset = (line_length * ps * crop->top) /
+				vr_ps + (crop->left * ps) / vr_ps +
+				((crop->width / vr_ps) - 1) * ps;
+		}
+		break;
+	}
+
+	if (vout->flicker_filter == 1)
+		vout->tv_field1_offset = 0;
+	else if (vout->rotation >= 0) {
+		if (vout->mirror == 1)
+			vout->tv_field1_offset = -vout->line_length * vout->ps;
+		else
+			vout->tv_field1_offset = vout->line_length * vout->ps;
+	} else {
+		if (vout->mirror == 1)
+			vout->tv_field1_offset = vout->line_length
+				* vout->ps / vout->vr_ps;
+		else
+			vout->tv_field1_offset = vout->line_length * vout->ps;
+	}
+	return 0;
+}
+
+/*
+ *  file operations
+ */
+#ifdef DEBUG_ALLOW_WRITE
+
+static ssize_t
+omap_vout_write(struct file *file, const char *data,
+		   size_t count, loff_t *ppos)
+{
+	struct omap_vout_fh *fh = file->private_data;
+	struct omap_vout_device *vout = fh->vout;
+
+	omap_disp_get_dss();
+
+	omap_vout_suspend_lockout(vout, file);
+	if ((*ppos) >= vout->pix.sizeimage) {
+		omap_disp_put_dss();
+		return 0;
+	}
+	if (count + (*ppos) > vout->pix.sizeimage)
+		count = vout->pix.sizeimage - (*ppos);
+	if (copy_from_user
+	    ((void *) (vout->framebuffer_base + (*ppos)), data, count)) {
+		printk(KERN_WARNING"error in copying data");
+	}
+	*ppos += count;
+
+	if (*ppos == vout->pix.sizeimage)
+		mdelay(5000);
+
+	omap_disp_put_dss();
+
+	return count;
+}
+
+#endif
+
+static void omap_vout_vm_open(struct vm_area_struct *vma)
+{
+	struct omap_vout_device *vout = vma->vm_private_data;
+	DPRINTK("vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end);
+	vout->mmap_count++;
+}
+
+static void omap_vout_vm_close(struct vm_area_struct *vma)
+{
+	struct omap_vout_device *vout = vma->vm_private_data;
+	DPRINTK("vm_close [vma=%08lx-%08lx]\n", vma->vm_start,
+		vma->vm_end);
+	vout->mmap_count--;
+}
+
+static struct vm_operations_struct omap_vout_vm_ops = {
+	.open = omap_vout_vm_open,
+	.close = omap_vout_vm_close,
+};
+
+static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct omap_vout_fh *fh = file->private_data;
+	struct omap_vout_device *vout = fh->vout;
+	struct videobuf_queue *q = &fh->vbq;
+	unsigned long size = (vma->vm_end - vma->vm_start);
+	unsigned long start = vma->vm_start;
+	int i;
+	void *pos;
+	struct videobuf_dmabuf *dmabuf = NULL;
+
+	DPRINTK("pgoff=0x%lx, start=0x%lx, end=0x%lx\n", vma->vm_pgoff,
+		vma->vm_start, vma->vm_end);
+
+	/* look for the buffer to map */
+	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
+		if (NULL == q->bufs[i])
+			continue;
+		if (V4L2_MEMORY_MMAP != q->bufs[i]->memory)
+			continue;
+		if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT))
+			break;
+	}
+
+	if (VIDEO_MAX_FRAME == i) {
+		DPRINTK("offset invalid [offset=0x%lx]\n",
+			(vma->vm_pgoff << PAGE_SHIFT));
+		return -EINVAL;
+	}
+	q->bufs[i]->baddr = vma->vm_start;
+
+	vma->vm_flags |= VM_RESERVED;
+	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	vma->vm_ops = &omap_vout_vm_ops;
+	vma->vm_private_data = (void *) vout;
+	dmabuf = videobuf_to_dma(q->bufs[i]);
+	pos = dmabuf->vmalloc;
+	while (size > 0) {
+		unsigned long pfn;
+		pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT;
+		if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
+			return -EAGAIN;
+		start += PAGE_SIZE;
+		pos += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+
+	vout->mmap_count++;
+	return 0;
+}
+
+static void omap_vout_free_allbuffers(struct omap_vout_device *vout)
+{
+	int num_buffers = 0, i;
+	num_buffers = (vout->vid == OMAP_VIDEO1) ?
+	    video1_numbuffers : video2_numbuffers;
+	for (i = num_buffers; i < vout->buffer_allocated; i++) {
+		if (vout->buf_virt_addr[i]) {
+			omap_vout_free_buffer(vout->buf_virt_addr[i],
+				 vout->buf_phy_addr[i], vout->buffer_size);
+		}
+		vout->buf_virt_addr[i] = 0;
+		vout->buf_phy_addr[i] = 0;
+	}
+	for (i = 0; i < 4; i++) {
+		if (vout->smsshado_virt_addr[i]) {
+			omap_vout_free_buffer(vout->smsshado_virt_addr[i],
+					vout->smsshado_phy_addr[i],
+					vout->smsshado_size);
+			vout->smsshado_virt_addr[i] = 0;
+			vout->smsshado_phy_addr[i] = 0;
+		}
+	}
+	vout->buffer_allocated = num_buffers;
+}
+
+static int omap_vout_release(struct inode *inode, struct file *file)
+{
+	struct omap_vout_fh *fh = file->private_data;
+	struct omap_vout_device *vout;
+	struct videobuf_queue *q;
+
+	DPRINTK("entering\n");
+
+	vout = fh->vout;
+	if (fh == 0)
+		return 0;
+	if (!vout)
+		return 0;
+	q = &fh->vbq;
+
+	omap_disp_get_dss();
+	omap_vout_suspend_lockout(vout, file);
+
+	/*
+	 * Check if the hidden buffer transfer is happening with DMA
+	 * if yes then stop it
+	 */
+
+	if (vout->rotation >= 0) {
+		if (vout->vrfb_dma_tx.tx_status == 0) {
+			/*
+			 * DMA will be stopped once here and again after
+			 * wakeup to avoid race conditions due to time
+			 * taken to wakeup the sleeping process
+			 */
+
+			omap_stop_dma(vout->vrfb_dma_tx.dma_ch);
+			wake_up_interruptible(&vout->vrfb_dma_tx.wait);
+		}
+	}
+
+	omap_disp_disable_layer(vout->vid);
+
+	if ((vout_linked != -1) && (vout->vid != vout_linked))
+		omap_disp_disable_layer((vout->vid == OMAP_VIDEO1) ?
+					 OMAP_VIDEO2 : OMAP_VIDEO1);
+
+	if (fh->io_allowed) {
+		videobuf_streamoff(q);
+		videobuf_queue_cancel(q);
+		/* Free all buffers */
+		omap_vout_free_allbuffers(vout);
+		videobuf_mmap_free(q);
+	}
+#ifdef DEBUG_ALLOW_WRITE
+	if (vout->framebuffer_base) {
+
+		dma_free_coherent(NULL, vout->framebuffer_size, (void *)
+				  vout->framebuffer_base,
+				  vout->framebuffer_base_phys);
+		vout->framebuffer_base = 0;
+	}
+	vout->framebuffer_base_phys = 0;
+#endif
+
+	if (vout->streaming == fh) {
+		omap_disp_unregister_isr(omap_vout_isr);
+		vout->streaming = NULL;
+	}
+
+	if (vout->mmap_count != 0) {
+		vout->mmap_count = 0;
+		printk("mmap count is not zero!\n");
+	}
+
+	omap_disp_release_layer(vout->vid);
+	omap_disp_put_dss();
+	vout->opened -= 1;
+	file->private_data = NULL;
+
+	if (vout->buffer_allocated)
+		videobuf_mmap_free(q);
+
+	kfree(fh);
+
+	/* need to remove the link when the either slave or master is gone */
+	spin_lock(&vout_link_lock);
+	if (vout_linked != -1)
+		vout_linked = -1;
+	spin_unlock(&vout_link_lock);
+
+	return 0;
+}
+
+static int omap_vout_open(struct inode *inode, struct file *file)
+{
+	int minor = MINOR(file->f_dentry->d_inode->i_rdev);
+	struct omap_vout_device *vout = NULL;
+	struct omap_vout_fh *fh;
+	struct videobuf_queue *q;
+#ifdef DEBUG_ALLOW_WRITE
+	int rotation = -1;
+#endif
+	/*int i; */
+
+	DPRINTK("entering\n");
+
+	if (saved_v1out && saved_v1out->vfd
+	    && (saved_v1out->vfd->minor == minor)) {
+		vout = saved_v1out;
+	}
+
+	if (vout == NULL) {
+		if (saved_v2out && saved_v2out->vfd
+		    && (saved_v2out->vfd->minor == minor)) {
+			vout = saved_v2out;
+		}
+	}
+
+	if (vout == NULL)
+		return -ENODEV;
+
+	/* for now, we only support single open */
+	if (vout->opened)
+		return -EBUSY;
+
+	vout->opened += 1;
+	if (!omap_disp_request_layer(vout->vid)) {
+		vout->opened -= 1;
+		return -ENODEV;
+	}
+
+	omap_disp_get_dss();
+	omap_vout_suspend_lockout(vout, file);
+	/* allocate per-filehandle data */
+	fh = kmalloc(sizeof(*fh), GFP_KERNEL);
+	if (NULL == fh) {
+		omap_disp_release_layer(vout->vid);
+		omap_disp_put_dss();
+		vout->opened -= 1;
+		return -ENOMEM;
+	}
+	memset(fh, 0, sizeof(*fh));
+
+	file->private_data = fh;
+	fh->vout = vout;
+	fh->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+
+#ifdef DEBUG_ALLOW_WRITE
+	vout->framebuffer_size = VID_MAX_HEIGHT * VID_MAX_HEIGHT * 2;
+	vout->framebuffer_base = dma_alloc_coherent(NULL,
+				vout->framebuffer_size,
+				(dma_addr_t *) &vout->framebuffer_base_phys,
+				GFP_KERNEL | GFP_DMA);
+
+	if (!vout->framebuffer_base) {
+		kfree(fh);
+		omap_disp_release_layer(vout->vid);
+		omap_disp_put_dss();
+		vout->opened -= 1;
+		return -ENOMEM;
+	}
+	rotation = (vout->rotation >= 0) ? vout->rotation : -1;
+	memset((void *) vout->framebuffer_base, 0, vout->framebuffer_size);
+
+	omap_vout_config_vlayer(dest->vid, &dest->pix, &dest->crop,
+				   &dest->win, rotation, dest->mirror);
+	omap_disp_start_vlayer(vout->vid, &vout->pix, &vout->crop,
+			vout->framebuffer_base_phys, rotation, vout->mirror);
+#endif
+
+	q = &fh->vbq;
+	video_vbq_ops.buf_setup = omap_vout_buffer_setup;
+	video_vbq_ops.buf_prepare = omap_vout_buffer_prepare;
+	video_vbq_ops.buf_release = omap_vout_buffer_release;
+	video_vbq_ops.buf_queue = omap_vout_buffer_queue;
+	spin_lock_init(&vout->vbq_lock);
+
+	videobuf_queue_sg_init(q, &video_vbq_ops, NULL, &vout->vbq_lock,
+			       fh->type, V4L2_FIELD_NONE, sizeof
+			       (struct videobuf_buffer), fh);
+
+	omap_disp_put_dss();
+
+	return 0;
+}
+
+static int vidioc_g_output(struct file *file, void *fh, unsigned int *output)
+{
+	return omap_disp_get_output(1, output);
+}
+
+static int vidioc_s_output(struct file *file, void *fh, unsigned int output)
+{
+	int err = -EINVAL;
+	omap_disp_get_dss();
+	err = omap_disp_set_output(1, output);
+	omap_disp_put_dss();
+	return err;
+}
+static int vidioc_enum_output(struct file *file, void *fh,
+	struct v4l2_output *output)
+{
+	int err = -EINVAL;
+	omap_disp_get_dss();
+	err = omap_disp_enum_output(1, output->index, output->name);
+	if (!err)
+		output->type = V4L2_OUTPUT_TYPE_MODULATOR;
+
+	omap_disp_put_dss();
+	return err;
+}
+static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id)
+{
+	int i;
+	int err = -EINVAL;
+	for (i = 0; i < ARRAY_SIZE(id_name); i++) {
+		if (*id == id_name[i].id) {
+			omap_disp_get_dss();
+			err = omap_disp_set_mode(1, id_name[i].name);
+			omap_disp_put_dss();
+		}
+	}
+	return err;
+
+}
+static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *id)
+{
+	int i;
+	char *s;
+	int err = -EINVAL;
+	omap_disp_get_dss();
+	s = omap_disp_get_mode(1);
+	omap_disp_put_dss();
+	for (i = 0; i < ARRAY_SIZE(id_name); i++) {
+		if (!(strcmp(s, id_name[i].name))) {
+			*id = id_name[i].id;
+			err = 0;
+		}
+	}
+	return err;
+}
+
+static int vidioc_querycap(struct file *file, void *fh,
+		struct v4l2_capability *cap)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	memset(cap, 0, sizeof(*cap));
+	strncpy(cap->driver, VOUT_NAME,
+		sizeof(cap->driver));
+	strncpy(cap->card, vout->vfd->name, sizeof(cap->card));
+	cap->bus_info[0] = '\0';
+	cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT;
+#ifdef DEBUG_ALLOW_WRITE
+	cap->capabilities |= V4L2_CAP_READWRITE;
+#endif
+	return 0;
+}
+static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_fmtdesc *fmt)
+{
+	int index = fmt->index;
+	enum v4l2_buf_type type = fmt->type;
+
+	memset(fmt, 0, sizeof(*fmt));
+	fmt->index = index;
+	fmt->type = type;
+	if (index >= NUM_OUTPUT_FORMATS)
+		return -EINVAL;
+
+	fmt->flags = omap_formats[index].flags;
+	strncpy(fmt->description, omap_formats[index].description,
+			sizeof(fmt->description));
+	fmt->pixelformat = omap_formats[index].pixelformat;
+	return 0;
+}
+static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_fmtdesc *fmt)
+{
+	int index = fmt->index;
+	enum v4l2_buf_type type = fmt->type;
+
+	memset(fmt, 0, sizeof(*fmt));
+	fmt->index = index;
+	fmt->type = type;
+	if (index >= NUM_OUTPUT_FORMATS)
+		return -EINVAL;
+
+	fmt->flags = omap_formats[index].flags;
+	strncpy(fmt->description, omap_formats[index].description,
+		sizeof(fmt->description));
+	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 = ((struct omap_vout_fh *) fh)->vout;
+
+	struct v4l2_pix_format *pix = &f->fmt.pix;
+	memset(pix, 0, sizeof(*pix));
+	*pix = vout->pix;
+	return 0;
+
+}
+static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	struct v4l2_window *win = &f->fmt.win;
+	memset(win, 0, sizeof(*win));
+
+	/*
+	 * The API has a bit of a problem here.
+	 * We're returning a v4l2_window
+	 * structure, but that structure
+	 * contains pointers to variable-sized
+	 * objects for clipping rectangles and
+	 * clipping bitmaps.  We will just
+	 * return NULLs for those pointers.
+	 */
+	win->w = vout->win.w;
+	win->field = vout->win.field;
+	win->chromakey = vout->win.chromakey;
+	return 0;
+}
+static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	unsigned int output_dev  = omap_disp_get_output_dev(vout->vid);
+
+	if (vout->streaming)
+		return -EBUSY;
+	/* We dont support RGB24-packed mode if vrfb rotation
+	 * is enabled*/
+	if (vout->rotation != -1 &&
+			f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24)
+		return -EINVAL;
+	/* don't allow to change img for the
+	 * linked layer */
+	if (vout->vid == vout_linked)
+		return -EINVAL;
+	omap_disp_get_dss();
+	/* get the framebuffer parameters */
+	if (vout->rotation == 90 ||
+		vout->rotation == 270) {
+		omap_disp_get_panel_size(output_dev, &(vout->fbuf.fmt.height),
+			&(vout->fbuf.fmt.width));
+	} else {
+		omap_disp_get_panel_size(output_dev, &(vout->fbuf.fmt.width),
+				&(vout->fbuf.fmt.height));
+	}
+	omap_disp_put_dss();
+	omap_vout_try_format(&f->fmt.pix, &vout->fbuf.fmt);
+	return 0;
+}
+static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	int err = -EINVAL;
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	struct v4l2_window *win = &f->fmt.win;
+
+	err = omap_vout_try_window(&vout->fbuf, win);
+	return err;
+}
+static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	int bpp;
+	unsigned int output_device = omap_disp_get_output_dev(vout->vid);
+
+	if (vout->streaming)
+		return -EBUSY;
+
+	if (down_interruptible(&vout->lock))
+		return -EINVAL;
+
+	/* We dont support RGB24-packed mode if vrfb rotation
+	 * is enabled*/
+	if (vout->rotation != -1
+			&& f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+	omap_disp_get_dss();
+
+	/* get the framebuffer parameters */
+	if (vout->rotation == 90 || vout->rotation == 270) {
+		omap_disp_get_panel_size(output_device,
+			&(vout->fbuf.fmt.height), &(vout->fbuf.fmt.width));
+	} else {
+		omap_disp_get_panel_size(output_device, &(vout->fbuf.fmt.width),
+			&(vout->fbuf.fmt.height));
+	}
+	omap_disp_put_dss();
+
+	/*
+	 * don't allow to change img for
+	 * the linked layer */
+	if (vout->vid == vout_linked) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+	/* change to samller size is OK */
+	bpp = omap_vout_try_format(&f->fmt.pix, &vout->fbuf.fmt);
+	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);
+	up(&vout->lock);
+	return 0;
+}
+static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
+			struct v4l2_format *f)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	int err = -EINVAL;
+	struct v4l2_window *win = &f->fmt.win;
+
+	err = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
+	up(&vout->lock);
+	return err;
+}
+
+static int vidioc_cropcap(struct file *file, void *fh,
+			struct v4l2_cropcap *cropcap)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	enum v4l2_buf_type type = cropcap->type;
+
+	memset(cropcap, 0, sizeof(*cropcap));
+	cropcap->type = type;
+	if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+		struct v4l2_pix_format *pix = &vout->pix;
+
+		/* Width and height are always even */
+		cropcap->bounds.width = pix->width & ~1;
+		cropcap->bounds.height = pix->height & ~1;
+
+		omap_vout_default_crop(&vout->pix,
+				&vout->fbuf, &cropcap->defrect);
+		cropcap->pixelaspect.numerator = 1;
+		cropcap->pixelaspect.denominator = 1;
+		return 0;
+	} else
+		return -EINVAL;
+}
+static int vidioc_g_crop(struct file *file, void *fh,
+	struct v4l2_crop *crop)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+		crop->c = vout->crop;
+		return 0;
+	} else
+		return -EINVAL;
+}
+static int vidioc_s_crop(struct file *file, void *fh,
+			struct v4l2_crop *crop)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	unsigned int output_device = omap_disp_get_output_dev(vout->vid);
+	int err = -EINVAL;
+
+	if (vout->streaming)
+		return -EBUSY;
+
+	if (down_interruptible(&vout->lock))
+		return -EINVAL;
+
+	omap_disp_get_dss();
+
+	/* get the framebuffer parameters */
+	if (vout->rotation == 90 || vout->rotation == 270) {
+		omap_disp_get_panel_size(output_device,
+			&(vout->fbuf.fmt.height), &(vout->fbuf.fmt.width));
+	} else {
+		omap_disp_get_panel_size(output_device,
+			&(vout->fbuf.fmt.width), &(vout->fbuf.fmt.height));
+
+	}
+	omap_disp_put_dss();
+	if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+		err = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
+			&vout->fbuf, &crop->c);
+		up(&vout->lock);
+		return err;
+	} else {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+}
+static int vidioc_s_color_space_conv(struct file *file, void *fh,
+		struct v4l2_color_space_conversion *a)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	int v;
+	int full_range_conversion = 0;
+
+	if (down_interruptible(&vout->lock))
+		return -EINVAL;
+	if (vout->vid == OMAP_VIDEO1)
+		v = 0;
+	else
+		v = 1;
+
+	current_colorconv_values[v][0][0] = a->coefficients[0][0];
+	current_colorconv_values[v][0][1] = a->coefficients[0][1];
+	current_colorconv_values[v][0][2] = a->coefficients[0][2];
+	current_colorconv_values[v][1][0] = a->coefficients[1][0];
+	current_colorconv_values[v][1][1] = a->coefficients[1][1];
+	current_colorconv_values[v][1][2] = a->coefficients[1][2];
+	current_colorconv_values[v][2][0] = a->coefficients[2][0];
+	current_colorconv_values[v][2][1] = a->coefficients[2][1];
+	current_colorconv_values[v][2][2] = a->coefficients[2][2];
+	omap_disp_get_dss();
+
+	if (vout->pix.colorspace == V4L2_COLORSPACE_JPEG ||
+	    vout->pix.colorspace == V4L2_COLORSPACE_SRGB) {
+		full_range_conversion = 1;
+	}
+	omap_disp_set_colorconv(v, full_range_conversion);
+	omap_disp_put_dss();
+	up(&vout->lock);
+	return 0;
+
+}
+static int vidioc_g_color_space_conv(struct file *file, void *fh,
+		struct v4l2_color_space_conversion *a)
+{
+	int v;
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	if (vout->vid == OMAP_VIDEO1)
+		v = 0;
+	else
+		v = 1;
+
+	memset(a, 0, sizeof(struct v4l2_color_space_conversion));
+	a->coefficients[0][0] = current_colorconv_values[v][0][0];
+	a->coefficients[0][1] = current_colorconv_values[v][0][1];
+	a->coefficients[0][2] = current_colorconv_values[v][0][2];
+	a->coefficients[1][0] = current_colorconv_values[v][1][0];
+	a->coefficients[1][1] = current_colorconv_values[v][1][1];
+	a->coefficients[1][2] = current_colorconv_values[v][1][2];
+	a->coefficients[2][0] = current_colorconv_values[v][2][0];
+	a->coefficients[2][1] = current_colorconv_values[v][2][1];
+	a->coefficients[2][2] = current_colorconv_values[v][2][2];
+
+	return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *fh,
+		struct v4l2_queryctrl *a)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(omap_vout_qctrl); i++)
+		if (a->id && a->id == omap_vout_qctrl[i].id) {
+			memcpy(a, &omap_vout_qctrl[i],
+					sizeof(struct v4l2_queryctrl));
+			return 0;
+		}
+	return -EINVAL;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *a)
+{
+	int i;
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	for (i = 0; i < ARRAY_SIZE(omap_vout_qctrl); i++)
+		if (a->id && a->id == vout->control[i].id) {
+			a->value = vout->control[i].value;
+			return 0;
+		}
+	return -EINVAL;
+}
+static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	switch (a->id) {
+	case V4L2_CID_ROTATION:
+		{
+			int rotation = a->value;
+
+			if (down_interruptible(&vout->lock))
+				return -EINVAL;
+			if ((rotation == 0) || (rotation == 90) ||
+			    (rotation == 180) || (rotation == 270)
+			    || (rotation == -1)) {
+				vout->rotation = (rotation == 90) ?
+					270 : (rotation == 270) ?
+					90 : rotation;
+				up(&vout->lock);
+				rotation_support = vout->rotation;
+				vout->control[0].value = vout->rotation;
+				return 0;
+			} else {
+				up(&vout->lock);
+				return -EINVAL;
+			}
+		}
+	case V4L2_CID_VFLIP:
+		{
+			int mirror = a->value;
+
+			if (down_interruptible(&vout->lock))
+				return -EINVAL;
+			if ((mirror == 0) && (vout->mirror == 1)) {
+				vout->mirror = 0;
+				up(&vout->lock);
+				return 0;
+			} else if ((mirror == 1) && (vout->mirror == 0)) {
+				vout->mirror = 1;
+				up(&vout->lock);
+				return 0;
+			}
+			vout->control[2].value = vout->mirror;
+			up(&vout->lock);
+			return -EINVAL;
+		}
+	case V4L2_CID_BG_COLOR:
+		{
+			unsigned int output_dev;
+
+			vout->control[1].value = a->value;
+			output_dev = omap_disp_get_output_dev(vout->vid);
+
+			if (down_interruptible(&vout->lock))
+				return -EINVAL;
+
+			omap_disp_get_dss();
+
+			omap_disp_set_bg_color(output_dev,
+					vout->control[1].value);
+
+			omap_disp_put_dss();
+
+			up(&vout->lock);
+			return 0;
+		}
+	default:
+		return -EINVAL;
+	}
+
+}
+
+static int vidioc_default(struct file *file, void *fh, int cmd, void *arg)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+
+	switch (cmd) {
+	case VIDIOC_S_OMAP_LINK:
+		{
+			int *link = arg;
+
+			spin_lock(&vout_link_lock);
+			if ((*link == 0) && (vout_linked == vout->vid))
+				vout_linked = -1;
+
+			omap_disp_get_dss();
+			if ((*link == 1) && (vout_linked == -1 ||
+					vout_linked == vout->vid)) {
+				vout_linked = vout->vid;
+
+				if (vout_linked == OMAP_VIDEO2) {
+					/* sync V2 to V1 for img and crop */
+					omap_vout_sync(saved_v2out,
+							saved_v1out);
+				} else {
+					/* sync V1 to V2 */
+					omap_vout_sync(saved_v1out,
+							saved_v2out);
+				}
+			}
+
+			omap_disp_put_dss();
+
+			spin_unlock(&vout_link_lock);
+			return 0;
+		}
+	case VIDIOC_G_OMAP_LINK:
+		{
+			int *link = arg;
+
+			spin_lock(&vout_link_lock);
+			if (vout_linked == vout->vid)
+				*link = 1;
+			else
+				*link = 0;
+			spin_unlock(&vout_link_lock);
+			return 0;
+		}
+	case VIDIOC_S_OMAP_COLORKEY:
+		{
+			struct omap_vout_colorkey *colorkey =
+			    (struct omap_vout_colorkey *) arg;
+
+			if (down_interruptible(&vout->lock))
+				return -EINVAL;
+			if ((colorkey->output_dev != OMAP_OUTPUT_LCD &&
+			     colorkey->output_dev != OMAP_OUTPUT_TV) ||
+			    (colorkey->key_type != OMAP_GFX_DESTINATION
+			     && colorkey->key_type != OMAP_VIDEO_SOURCE)) {
+				up(&vout->lock);
+				return -EINVAL;
+			}
+			omap_disp_get_dss();
+
+			omap_disp_set_colorkey(colorkey->output_dev,
+				colorkey->key_type, colorkey->key_val);
+
+			omap_disp_put_dss();
+			up(&vout->lock);
+
+			return 0;
+		}
+	case VIDIOC_G_OMAP_COLORKEY:
+		{
+			struct omap_vout_colorkey *colorkey =
+			    (struct omap_vout_colorkey *) arg;
+
+			if (colorkey->output_dev != OMAP_OUTPUT_LCD
+			    && colorkey->output_dev != OMAP_OUTPUT_TV)
+				return -EINVAL;
+
+			omap_disp_get_dss();
+
+			omap_disp_get_colorkey(colorkey->output_dev,
+				&colorkey->key_type, &colorkey->key_val);
+
+			omap_disp_put_dss();
+
+			return 0;
+
+		}
+	default:
+		return -EINVAL;
+	}
+
+}
+
+static int vidioc_reqbufs(struct file *file, void *fh,
+			struct v4l2_requestbuffers *req)
+{
+	struct omap_vout_device *vout = ((struct omap_vout_fh *) fh)->vout;
+	struct videobuf_queue *q = &(((struct omap_vout_fh *) fh)->vbq);
+	unsigned int i, num_buffers = 0;
+	int ret = 0;
+	struct videobuf_dmabuf *dmabuf = NULL;
+
+	if (down_interruptible(&vout->lock))
+		return -EINVAL;
+	/* don't allow to buffer request for the linked layer */
+	if (vout->vid == vout_linked) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+
+	if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0)) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+	/* if memory is not mmp or userptr
+	   return error */
+	if ((V4L2_MEMORY_MMAP != req->memory) &&
+		(V4L2_MEMORY_USERPTR != req->memory)) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+
+	/* Cannot be requested when streaming is on */
+	if (vout->streaming) {
+		up(&vout->lock);
+		return -EBUSY;
+	}
+
+	/* If buffers are already allocated free them */
+	if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) {
+		if (vout->mmap_count) {
+			up(&vout->lock);
+			return -EBUSY;
+		}
+		num_buffers = (vout->vid == OMAP_VIDEO1) ?
+			video1_numbuffers : video2_numbuffers;
+		for (i = num_buffers; i < vout->buffer_allocated; i++) {
+			dmabuf = videobuf_to_dma(q->bufs[i]);
+			omap_vout_free_buffer((u32)dmabuf->vmalloc,
+				dmabuf->bus_addr, vout->buffer_size);
+			vout->buf_virt_addr[i] = 0;
+			vout->buf_phy_addr[i] = 0;
+		}
+		vout->buffer_allocated = num_buffers;
+		videobuf_mmap_free(q);
+	} else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) {
+		if (vout->buffer_allocated) {
+			videobuf_mmap_free(q);
+			for (i = 0; i < vout->buffer_allocated; i++) {
+				kfree(q->bufs[i]);
+				q->bufs[i] = NULL;
+			}
+			vout->buffer_allocated = 0;
+		}
+	}
+	((struct omap_vout_fh *) fh)->io_allowed = 1;
+
+	/*store the memory type in data structure */
+	vout->memory = req->memory;
+
+	INIT_LIST_HEAD(&vout->dma_queue);
+
+	/* call videobuf_reqbufs api */
+	ret = videobuf_reqbufs(q, req);
+	if (ret < 0) {
+		up(&vout->lock);
+		return ret;
+	}
+
+	vout->buffer_allocated = req->count;
+	for (i = 0; i < req->count; i++) {
+		dmabuf = videobuf_to_dma(q->bufs[i]);
+		dmabuf->vmalloc = (void *) vout->buf_virt_addr[i];
+		dmabuf->bus_addr = (dma_addr_t) vout->buf_phy_addr[i];
+		dmabuf->sglen = 1;
+	}
+	up(&vout->lock);
+	return 0;
+}
+static int vidioc_querybuf(struct file *file, void *fh,
+			struct v4l2_buffer *b)
+{
+	return videobuf_querybuf(&(((struct omap_vout_fh *) fh)->vbq), b);
+}
+static int vidioc_qbuf(struct file *file, void *fh,
+			struct v4l2_buffer *buffer)
+{
+	struct omap_vout_fh *ofh = (struct omap_vout_fh *)fh;
+	struct omap_vout_device *vout = ofh->vout;
+	struct videobuf_queue *q = &ofh->vbq;
+	int streaming_on = STREAMING_IS_ON(), ret = 0;
+
+	if (!ofh->io_allowed)
+		return -EINVAL;
+
+	timeout = HZ / 5;
+	timeout += jiffies;
+
+	if (!streaming_on)
+		omap_disp_get_dss();
+
+	/* don't allow to queue buffer for the linked layer */
+	if (vout->vid == vout_linked) {
+		if (!streaming_on)
+			omap_disp_put_dss();
+		return -EINVAL;
+	}
+
+	if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) ||
+			(buffer->index >= vout->buffer_allocated) ||
+			(q->bufs[buffer->index]->memory != buffer->memory)) {
+		if (!streaming_on)
+			omap_disp_put_dss();
+		return -EINVAL;
+	}
+	if (V4L2_MEMORY_USERPTR == buffer->memory) {
+		if ((buffer->length < vout->pix.sizeimage) ||
+			(0 == buffer->m.userptr)) {
+			if (!streaming_on)
+				omap_disp_put_dss();
+			return -EINVAL;
+		}
+	}
+
+	if (vout->rotation >= 0 &&
+			vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) {
+		if (!streaming_on)
+			omap_disp_put_dss();
+		return -EINVAL;
+	}
+
+	ret = videobuf_qbuf(q, buffer);
+	if (!streaming_on)
+		omap_disp_put_dss();
+	return ret;
+}
+static int vidioc_dqbuf(struct file *file, void *fh,
+			struct v4l2_buffer *b)
+{
+	struct omap_vout_fh *ofh = (struct omap_vout_fh *)fh;
+	struct omap_vout_device *vout = ofh->vout;
+	struct videobuf_queue *q = &ofh->vbq;
+	int ret = 0;
+	/* don't allow to dequeue buffer for the linked layer */
+	if (vout->vid == vout_linked)
+		return -EINVAL;
+
+	if (!vout->streaming || !ofh->io_allowed)
+		return -EINVAL;
+
+	if (file->f_flags & O_NONBLOCK)
+		/* Call videobuf_dqbuf for non blocking mode */
+		ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1);
+	else
+		/* Call videobuf_dqbuf for  blocking mode */
+		ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0);
+	return ret;
+}
+static int vidioc_streamon(struct file *file, void *fh,
+			enum v4l2_buf_type i)
+{
+	struct omap_vout_fh *ofh = (struct omap_vout_fh *)fh;
+	struct omap_vout_device *vout = ofh->vout;
+	struct videobuf_queue *q = &ofh->vbq;
+	struct omap_vout_device *dest = NULL;
+	struct videobuf_dmabuf *dmabuf = NULL;
+	int ret = 0, rotation = -1, mask = 0;
+	u32 addr = 0;
+
+	if (down_interruptible(&vout->lock))
+		return -EINVAL;
+	if (!ofh->io_allowed) {
+		up(&vout->lock);
+		return -EINVAL;
+	}
+
+	if (vout->streaming) {
+		up(&vout->lock);
+		return -EBUSY;
+	}
+
+	ret = videobuf_streamon(q);
+	if (ret < 0) {
+		up(&vout->lock);
+		return ret;
+	}
+
+	if (list_empty(&vout->dma_queue)) {
+		up(&vout->lock);
+		return -EIO;
+	}
+	/* Get the next frame from the buffer queue */
+	vout->nextFrm = vout->curFrm = list_entry(vout->dma_queue.next,
+				struct videobuf_buffer, queue);
+	/* Remove buffer from the buffer queue */
+	list_del(&vout->curFrm->queue);
+	/* Mark state of the current frame to active */
+	vout->curFrm->state = VIDEOBUF_ACTIVE;
+	/* Initialize field_id and started member */
+	vout->field_id = 0;
+
+	/* set flag here. Next QBUF will start DMA */
+	vout->streaming = ofh;
+
+	vout->first_int = 1;
+
+	omap_disp_get_dss();
+	rotation = (vout->rotation >= 0) ? vout->rotation : -1;
+
+	omap_vout_config_vlayer(vout->vid, &vout->pix, &vout->crop, &vout->win,
+			rotation, vout->mirror);
+	omap_vout_calculate_offset(vout);
+
+	addr = (unsigned long) vout->queued_buf_addr[vout->curFrm->i] +
+		vout->cropped_offset;
+	omap_disp_set_addr(vout->vid, addr, addr,
+			addr + vout->tv_field1_offset);
+
+	/* Configure also linked layer */
+	if (vout_linked != -1 && vout_linked != vout->vid) {
+		dest = (vout_linked == OMAP_VIDEO1) ? saved_v1out : saved_v2out;
+		rotation = (dest->rotation >= 0) ? dest->rotation : -1;
+		if (rotation > -1) {
+			if (!(vout->rotation > -1)) {
+				printk(KERN_WARNING "Rotation should be \
+					enabled in linking layer\n");
+				up(&vout->lock);
+				return -EINVAL;
+			}
+			if (rotation != vout->rotation) {
+				printk("Rotation must be same in \
+						both the layers\n");
+				up(&vout->lock);
+				return -EINVAL;
+			}
+		}
+		omap_vout_calculate_offset(dest);
+
+		if (rotation >= 0) {
+			addr = (unsigned long)
+				vout->queued_buf_addr[vout->curFrm->i] +
+				dest->cropped_offset;
+		} else {
+			dmabuf = videobuf_to_dma(vout->curFrm);
+			addr = (unsigned long) dmabuf->bus_addr +
+				dest->cropped_offset;
+		}
+
+		omap_vout_config_vlayer(dest->vid, &dest->pix, &dest->crop,
+				&dest->win, rotation, dest->mirror);
+
+		omap_disp_set_addr(dest->vid, addr, addr,
+				addr + dest->tv_field1_offset);
+	}
+	/* Register ISR handler */
+	mask = (DISPC_IRQSTATUS_EVSYNC_ODD | DISPC_IRQSTATUS_EVSYNC_EVEN |
+		 DISPC_IRQSTATUS_VSYNC);
+	ret = omap_disp_register_isr(omap_vout_isr, vout, mask);
+	if (ret < 0) {
+		up(&vout->lock);
+		return -EIO;
+	}
+
+	omap_disp_start_video_layer(vout->vid);
+	if (vout_linked != -1 && vout_linked != vout->vid)
+		omap_disp_start_video_layer(dest->vid);
+	up(&vout->lock);
+	return 0;
+}
+static int vidioc_streamoff(struct file *file, void *fh,
+			enum v4l2_buf_type i)
+{
+	struct omap_vout_fh *ofh = (struct omap_vout_fh *)fh;
+	struct omap_vout_device *vout = ofh->vout;
+	struct videobuf_queue *q = &ofh->vbq;
+	int ret = 0;
+	if (!ofh->io_allowed)
+		return -EINVAL;
+	if (!vout->streaming)
+		return -EINVAL;
+	if (vout->streaming == fh) {
+		omap_disp_disable_layer(vout->vid);
+		vout->streaming = NULL;
+
+		/* stop the slave layer */
+		if (vout_linked != -1 && vout_linked != vout->vid) {
+			omap_disp_disable_layer((vout->vid == OMAP_VIDEO1) ?
+					OMAP_VIDEO2 : OMAP_VIDEO1);
+		}
+
+		ret = videobuf_streamoff(q);
+		omap_disp_unregister_isr(omap_vout_isr);
+		omap_disp_put_dss();
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static const struct v4l2_ioctl_ops vout_ioctl_ops = {
+.vidioc_querycap      			= vidioc_querycap,
+.vidioc_g_output 	 		= vidioc_g_output,
+.vidioc_s_output      			= vidioc_s_output,
+.vidioc_enum_output   			= vidioc_enum_output,
+.vidioc_s_std		 		= vidioc_s_std,
+.vidioc_g_std		 		= vidioc_g_std,
+.vidioc_querycap	 		= vidioc_querycap,
+.vidioc_queryctrl    			= vidioc_queryctrl,
+.vidioc_g_ctrl       			= vidioc_g_ctrl,
+.vidioc_s_ctrl       			= vidioc_s_ctrl,
+.vidioc_enum_fmt_vid_out 		= vidioc_enum_fmt_vid_out,
+.vidioc_enum_fmt_vid_overlay		= vidioc_enum_fmt_vid_overlay,
+.vidioc_g_fmt_vid_out			= vidioc_g_fmt_vid_out,
+.vidioc_g_fmt_vid_overlay		= vidioc_g_fmt_vid_overlay,
+.vidioc_try_fmt_vid_out			= vidioc_try_fmt_vid_out,
+.vidioc_try_fmt_vid_overlay 		= vidioc_try_fmt_vid_overlay,
+.vidioc_s_fmt_vid_out			= vidioc_s_fmt_vid_out,
+.vidioc_s_fmt_vid_overlay		= vidioc_s_fmt_vid_overlay,
+.vidioc_cropcap				= vidioc_cropcap,
+.vidioc_g_crop				= vidioc_g_crop,
+.vidioc_s_crop				= vidioc_s_crop,
+.vidioc_reqbufs				= vidioc_reqbufs,
+.vidioc_querybuf			= vidioc_querybuf,
+.vidioc_qbuf				= vidioc_qbuf,
+.vidioc_dqbuf				= vidioc_dqbuf,
+.vidioc_streamon			= vidioc_streamon,
+.vidioc_streamoff			= vidioc_streamoff,
+.vidioc_s_color_space_conv 		= vidioc_s_color_space_conv,
+.vidioc_g_color_space_conv 		= vidioc_g_color_space_conv,
+.vidioc_default				= vidioc_default,
+};
+
+static struct file_operations omap_vout_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+#ifdef DEBUG_ALLOW_WRITE
+	.write = omap_vout_write,
+#endif
+	.ioctl = video_ioctl2,
+	.mmap = omap_vout_mmap,
+	.open = omap_vout_open,
+	.release = omap_vout_release,
+};
+
+#ifdef CONFIG_PM
+static int
+omap_vout_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct omap_vout_device *vout = platform_get_drvdata(dev);
+
+	/* lock-out applications during suspend */
+	if (vout->suspended == 1)
+		return 0;
+
+	if (!vout->opened)
+		return 0;
+	if (!vout->streaming)
+		goto suspend;
+
+	/* stall vid DMA */
+	omap_disp_disable_layer(vout->vid);
+	/*
+	 * Check if the hidden buffer transfer is happening
+	 * with DMA if yes then stop it
+	 */
+	if (vout->rotation >= 0) {
+		if (vout->vrfb_dma_tx.tx_status == 0) {
+			/*
+			 * DMA will be stopped once here
+			 * and again after wakeup to
+			 * avoid race conditions due to time
+			 * taken to wakeup the sleeping
+			 * process */
+			omap_stop_dma(vout->vrfb_dma_tx.dma_ch);
+			wake_up_interruptible(&vout->vrfb_dma_tx.wait);
+		}
+	}
+suspend:
+	vout->suspended = 1;
+	omap_disp_put_dss();
+
+	return 0;
+}
+
+static int omap_vout_resume(struct platform_device *dev)
+{
+	struct omap_vout_device *vout = platform_get_drvdata(dev);
+	if (vout->suspended == 0)
+		return 0;
+	if (vout->opened) {
+		omap_disp_get_dss();
+
+		/* resume vid DMA */
+		if (vout->streaming)
+			omap_disp_enable_layer(vout->vid);
+
+		/* wake up applications waiting on suspend queue */
+		vout->suspended = 0;
+		wake_up(&vout->suspend_wq);
+	}
+	return 0;
+}
+
+#ifdef CONFIG_DPM
+
+static struct constraints omap_vout_constraints = {
+	.count = 2,
+	.param = {
+		  {DPM_MD_V, OMAP_V_MIN, OMAP_V_MAX},
+		  {DPM_MD_SLEEP_MODE, PM_SUSPEND_STANDBY, PM_SUSPEND_MEM},
+		  },
+};
+
+static int
+omap_vout_scale(int vid, struct notifier_block *op, unsigned long level)
+{
+	struct omap_vout_device *vout;
+	vout = (vid == OMAP_VIDEO1) ? saved_v1out : saved_v2out;
+	if (!vout->opened)
+		return 0;
+	switch (level) {
+	case SCALE_PRECHANGE:
+		if (vout->streaming) {
+			omap_disp_disable_layer(vout->vid);
+			if (vout->rotation >= 0) {
+				if (vout->vrfb_dma_tx.tx_status == 0)
+					omap_stop_dma(vout->vrfb_dma_tx.dma_ch);
+			}
+		}
+		break;
+	case SCALE_POSTCHANGE:
+		if (vout->streaming) {
+			omap_disp_enable_layer(vout->vid);
+			if (vout->rotation >= 0) {
+				if (vout->vrfb_dma_tx.tx_status == 0)
+					omap_start_dma(
+						vout->vrfb_dma_tx.dma_ch);
+			}
+		}
+		break;
+	}
+	return 0;
+}
+
+static int
+omap_v1out_scale(struct notifier_block *op,
+		    unsigned long level, void *ptr)
+{
+	return omap_vout_scale(OMAP_VIDEO1, op, level);
+}
+
+static int
+omap_v2out_scale(struct notifier_block *op,
+		    unsigned long level, void *ptr)
+{
+	return omap_vout_scale(OMAP_VIDEO2, op, level);
+}
+
+static struct notifier_block omap_v1out_pre_scale = {
+	.notifier_call = omap_v1out_scale,
+};
+
+static struct notifier_block omap_v1out_post_scale = {
+	.notifier_call = omap_v1out_scale,
+};
+
+static struct notifier_block omap_v2out_pre_scale = {
+	.notifier_call = omap_v2out_scale,
+};
+
+static struct notifier_block omap_v2out_post_scale = {
+	.notifier_call = omap_v2out_scale,
+};
+
+#endif
+#endif				/* PM */
+
+static int omap_vout_remove(struct platform_device *dev)
+{
+	omap_vout_cleanup_device(dev->id);
+	return 0;
+}
+static int omap_vout_probe(struct platform_device *dev)
+{
+	int r, i, j;
+	struct omap_vout_device *vout;
+	struct video_device *vfd;
+	struct v4l2_pix_format *pix;
+	struct v4l2_control *control;
+	u32 sms_start_addr, numbuffers;
+	int index_i, index_j, image_width, image_height;
+	int vid = dev->id;
+
+	omap_disp_get_dss();
+	vout = kmalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
+	if (!vout) {
+		printk(KERN_ERR VOUT_NAME ": could not allocate memory\n");
+		omap_disp_put_dss();
+		return -ENOMEM;
+	}
+
+	memset(vout, 0, sizeof(struct omap_vout_device));
+	vout->vid = vid;
+	control = vout->control;
+
+	control[0].id = V4L2_CID_ROTATION;
+	control[1].id = V4L2_CID_BG_COLOR;
+	control[2].id = V4L2_CID_VFLIP;
+	control[0].value = -1;
+	control[1].value = 0;
+	control[2].value = 0;
+
+	vout->rotation = control[0].value;
+
+	/* set the default pix */
+	pix = &vout->pix;
+	pix->width = QQVGA_WIDTH;
+	pix->height = QQVGA_HEIGHT;
+
+	pix->pixelformat = V4L2_PIX_FMT_RGB565;
+	pix->field = V4L2_FIELD_ANY;
+	pix->bytesperline = pix->width * 2;
+	pix->sizeimage = pix->bytesperline * pix->height;
+	pix->priv = 0;
+	pix->colorspace = V4L2_COLORSPACE_JPEG;
+
+	vout->bpp = RGB565_BPP;
+	vout->vrfb_bpp = 1;
+
+		/* get the screen parameters */
+	omap_disp_get_panel_size(omap_disp_get_output_dev(vout->vid),
+		  &(vout->fbuf.fmt.width), &(vout->fbuf.fmt.height));
+
+	/* set default crop and win */
+	omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
+
+	/* 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");
+		kfree(vout);
+		omap_disp_put_dss();
+		return -ENOMEM;
+	}
+	vfd->release = video_device_release;
+	vfd->ioctl_ops = &vout_ioctl_ops;
+
+	strncpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
+	vfd->vfl_type = VID_TYPE_OVERLAY | VID_TYPE_CHROMAKEY;
+	/* need to register for a VID_HARDWARE_* ID in videodev.h */
+	vfd->fops = &omap_vout_fops;
+	video_set_drvdata(vfd, vout);
+	vfd->minor = -1;
+
+	sms_start_addr = dev->resource->start;
+	for (i = 0; i < 4; i++) {
+		for (j = 0; j < 4; j++) {
+			vout->sms_rot_phy[i][j] = sms_start_addr;
+			if (!request_mem_region(vout->sms_rot_phy[i][j],
+					VRF_SIZE, vfd->name)) {
+				printk(KERN_ERR "Cannot reserve smsm IO %x\n", \
+				       vout->sms_rot_phy[i][j]);
+				index_i = i;
+				index_j = j;
+				goto rotation_free;
+			}
+			sms_start_addr += 0x1000000;
+		}
+	}
+	index_i = 4;
+	index_j = 0;
+
+	/* Allocate memory for the buffes */
+	numbuffers = (vid == OMAP_VIDEO1) ?
+		video1_numbuffers : video2_numbuffers;
+	vout->buffer_size = (vid == OMAP_VIDEO1) ?
+		video1_bufsize : video2_bufsize;
+	printk(KERN_INFO "Buffer Size = %d\n", vout->buffer_size);
+	for (i = 0; i < numbuffers; i++) {
+		vout->buf_virt_addr[i] =
+		    omap_vout_alloc_buffer(vout->buffer_size,
+			      (u32 *) &vout->buf_phy_addr[i]);
+		if (!vout->buf_virt_addr[i]) {
+			numbuffers = i;
+			goto free_buffer_memory;
+		}
+	}
+
+	vout->suspended = 0;
+	init_waitqueue_head(&vout->suspend_wq);
+	init_MUTEX(&vout->lock);
+
+	if (video_register_device(vfd, VFL_TYPE_GRABBER, vid) < 0) {
+		printk(KERN_ERR VOUT_NAME ": could not register Video for \
+				Linux device\n");
+		vfd->minor = -1;
+		goto free_buffer_memory;
+	}
+	if (vid == OMAP_VIDEO1) {
+		vout->vrfb_context[0] = 4;
+		vout->vrfb_context[1] = 5;
+		vout->vrfb_context[2] = 6;
+		vout->vrfb_context[3] = 7;
+	} else {
+		vout->vrfb_context[0] = 8;
+		vout->vrfb_context[1] = 9;
+		vout->vrfb_context[2] = 10;
+		vout->vrfb_context[3] = 11;
+	}
+	vout->cropped_offset = 0;
+
+#ifdef CONFIG_DPM
+	/* Scaling is enabled only when DPM is enabled */
+	if (vid == OMAP_VIDEO1) {
+		dpm_register_scale(&omap_v1out_pre_scale,
+				   SCALE_PRECHANGE);
+		dpm_register_scale(&omap_v1out_post_scale,
+				   SCALE_POSTCHANGE);
+	} else {
+		dpm_register_scale(&omap_v2out_pre_scale,
+				   SCALE_PRECHANGE);
+		dpm_register_scale(&omap_v2out_post_scale,
+				   SCALE_POSTCHANGE);
+	}
+#endif
+	/* 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
+	 */
+	vout->vrfb_dma_tx.dev_id = OMAP_DMA_NO_DEVICE;
+	vout->vrfb_dma_tx.dma_ch = -1;
+	vout->vrfb_dma_tx.req_status = DMA_CHAN_ALLOTED;
+	r = omap_request_dma(vout->vrfb_dma_tx.dev_id,
+		"VRFB DMA TX", omap_vout_vrfb_dma_tx_callback,
+		(void *) &vout->vrfb_dma_tx, &vout->vrfb_dma_tx.dma_ch);
+	if (r < 0)
+		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+
+	init_waitqueue_head(&vout->vrfb_dma_tx.wait);
+
+	/*if rotation support */
+	printk(KERN_INFO VOUT_NAME ": registered device video%d [v4l2]\n",
+	       vfd->minor);
+
+	if (vid == OMAP_VIDEO1) {
+		saved_v1out = vout;
+		omap_disp_save_initstate(OMAP_DSS_DISPC_GENERIC);
+		omap_disp_save_initstate(OMAP_VIDEO1);
+	} else {
+		saved_v2out = vout;
+		omap_disp_save_initstate(OMAP_DSS_DISPC_GENERIC);
+		omap_disp_save_initstate(OMAP_VIDEO2);
+
+	}
+	platform_set_drvdata(dev, vout);
+	omap_disp_put_dss();
+	return 0;
+
+free_buffer_memory:
+	for (i = 0; i < numbuffers; i++) {
+		omap_vout_free_buffer(vout->buf_virt_addr[i],
+			 vout->buf_phy_addr[i], vout->buffer_size);
+		vout->buf_virt_addr[i] = 0;
+		vout->buf_phy_addr[i] = 0;
+	}
+
+rotation_free:
+	for (i = 0; i < index_i; i++) {
+		for (j = 0; j < 4; j++)
+			release_mem_region(vout->sms_rot_phy[i][j], VRF_SIZE);
+	}
+	for (j = 0; j < index_j; j++)
+		release_mem_region(vout->sms_rot_phy[index_i][j], VRF_SIZE);
+	video_device_release(vfd);
+	kfree(vout);
+	omap_disp_put_dss();
+	return -ENOMEM;
+}
+
+static struct platform_driver omap_vout_driver = {
+	.driver = {
+		   .name = VOUT_NAME,
+		   },
+	.probe = omap_vout_probe,
+	.remove = omap_vout_remove,
+#ifdef CONFIG_PM
+	.suspend = omap_vout_suspend,
+	.resume = omap_vout_resume,
+#endif
+};
+
+void
+omap_vout_isr(void *arg, struct pt_regs *regs, unsigned int irqstatus)
+{
+	struct timeval timevalue;
+	unsigned int out_dev;
+	struct omap_vout_device *vout =
+	    (struct omap_vout_device *) arg, *dest = NULL;
+	struct videobuf_dmabuf *dmabuf = NULL;
+	u32 addr, fid;
+
+	if (!vout->streaming)
+		return;
+
+	spin_lock(&vout->vbq_lock);
+	do_gettimeofday(&timevalue);
+	out_dev = omap_disp_get_output_dev(vout->vid);
+	if (out_dev == OMAP_OUTPUT_LCD) {
+		if (!(irqstatus & DISPC_IRQSTATUS_VSYNC))
+			return;
+		if (!vout->first_int && (vout->curFrm != vout->nextFrm)) {
+			vout->curFrm->ts = timevalue;
+			vout->curFrm->state = VIDEOBUF_DONE;
+			wake_up_interruptible(&vout->curFrm->done);
+			vout->curFrm = vout->nextFrm;
+		}
+		vout->first_int = 0;
+		if (list_empty(&vout->dma_queue)) {
+			spin_unlock(&vout->vbq_lock);
+			return;
+		}
+		vout->nextFrm = list_entry(vout->dma_queue.next,
+					   struct videobuf_buffer, queue);
+		list_del(&vout->nextFrm->queue);
+
+		vout->nextFrm->state = VIDEOBUF_ACTIVE;
+
+		addr = (unsigned long)
+		    vout->queued_buf_addr[vout->nextFrm->i] +
+		    vout->cropped_offset;
+		omap_disp_set_addr(vout->vid, addr, addr,
+				    addr + vout->tv_field1_offset);
+		if (vout_linked != -1 && vout_linked != vout->vid) {
+			dmabuf = videobuf_to_dma(vout->nextFrm);
+			dest = (vout_linked == OMAP_VIDEO1) ?
+				saved_v1out : saved_v2out;
+			if (dest->rotation > -1)
+				addr = (unsigned long)
+				    vout->queued_buf_addr[vout->nextFrm->i] +
+				    dest->cropped_offset;
+			else
+				addr = dmabuf->bus_addr + dest->cropped_offset;
+			omap_disp_set_addr(dest->vid, addr, addr,
+					    addr + dest->tv_field1_offset);
+		}
+	} else {
+		if (vout->first_int) {
+			vout->first_int = 0;
+			spin_unlock(&vout->vbq_lock);
+			return;
+		}
+		if (irqstatus & DISPC_IRQSTATUS_EVSYNC_ODD)
+			fid = 1;
+		else if (irqstatus & DISPC_IRQSTATUS_EVSYNC_EVEN)
+			fid = 0;
+		else {
+			spin_unlock(&vout->vbq_lock);
+			return;
+		}
+		vout->field_id ^= 1;
+		if (fid != vout->field_id) {
+			if (0 == fid)
+				vout->field_id = fid;
+
+			spin_unlock(&vout->vbq_lock);
+			return;
+		}
+		if (0 == fid) {
+			if (vout->curFrm == vout->nextFrm) {
+				spin_unlock(&vout->vbq_lock);
+				return;
+			}
+			vout->curFrm->ts = timevalue;
+			vout->curFrm->state = VIDEOBUF_DONE;
+			wake_up_interruptible(&vout->curFrm->done);
+			vout->curFrm = vout->nextFrm;
+		} else if (1 == fid) {
+			if (list_empty(&vout->dma_queue) ||
+			    (vout->curFrm != vout->nextFrm)) {
+				spin_unlock(&vout->vbq_lock);
+				return;
+			}
+
+			vout->nextFrm = list_entry(vout->dma_queue.next,
+					   struct videobuf_buffer, queue);
+
+			list_del(&vout->nextFrm->queue);
+
+			vout->nextFrm->state = VIDEOBUF_ACTIVE;
+
+			addr = (unsigned long)
+			    vout->queued_buf_addr[vout->nextFrm->i] +
+			    vout->cropped_offset;
+			omap_disp_set_addr(vout->vid, addr, addr,
+					    addr + vout->tv_field1_offset);
+			if (vout_linked != -1 && vout_linked != vout->vid) {
+				dmabuf = videobuf_to_dma(vout->nextFrm);
+				dest = (vout_linked == OMAP_VIDEO1) ?
+				    saved_v1out : saved_v2out;
+				if (dest->rotation > -1)
+					addr = (unsigned long)
+					    vout->queued_buf_addr
+					    [vout->nextFrm->i] +
+					    dest->cropped_offset;
+				else
+					addr = dmabuf->bus_addr +
+					    dest->cropped_offset;
+				omap_disp_set_addr(dest->vid, addr, addr,
+					    addr + dest->tv_field1_offset);
+			}
+		}
+	}
+	spin_unlock(&vout->vbq_lock);
+}
+
+static void omap_vout_cleanup_device(int vid)
+{
+
+	struct video_device *vfd;
+	struct omap_vout_device *vout;
+	int i, j, numbuffers;
+
+	vout = (vid == OMAP_VIDEO1) ? saved_v1out : saved_v2out;
+	if (!vout)
+		return;
+	vfd = vout->vfd;
+
+	if (vfd) {
+		if (vfd->minor == -1) {
+			/*
+			 * 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);
+		}
+	}
+
+	for (i = 0; i < 4; i++) {
+		for (j = 0; j < 4; j++)
+			release_mem_region(vout->sms_rot_phy[i][j], VRF_SIZE);
+	}
+
+	/* Allocate memory for the buffes */
+	numbuffers = (vid == OMAP_VIDEO1) ?
+		video1_numbuffers : video2_numbuffers;
+	vout->buffer_size = (vid == OMAP_VIDEO1)
+		? video1_bufsize : video2_bufsize;
+	for (i = 0; i < numbuffers; i++) {
+		omap_vout_free_buffer(vout->buf_virt_addr[i],
+			 vout->buf_phy_addr[i], vout->buffer_size);
+		vout->buf_phy_addr[i] = 0;
+		vout->buf_virt_addr[i] = 0;
+	}
+
+	if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) {
+		vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED;
+		omap_free_dma(vout->vrfb_dma_tx.dma_ch);
+	}
+
+#ifdef CONFIG_DPM
+	if (vid == OMAP_VIDEO1) {
+		dpm_unregister_scale(&omap_v1out_pre_scale,
+				     SCALE_PRECHANGE);
+		dpm_unregister_scale(&omap_v1out_post_scale,
+				     SCALE_POSTCHANGE);
+	} else {
+		dpm_unregister_scale(&omap_v2out_pre_scale,
+				     SCALE_PRECHANGE);
+		dpm_unregister_scale(&omap_v2out_pre_scale,
+				     SCALE_POSTCHANGE);
+	}
+#endif
+
+	kfree(vout);
+
+	if (vid == OMAP_VIDEO1)
+		saved_v1out = NULL;
+	else
+		saved_v2out = NULL;
+}
+
+static int __init omap_vout_init(void)
+{
+
+	if (platform_driver_register(&omap_vout_driver) != 0) {
+		printk(KERN_ERR VOUT_NAME ": could not register \
+				Video driver\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void omap_vout_cleanup(void)
+{
+	omap_disp_get_dss();
+	platform_driver_unregister(&omap_vout_driver);
+	omap_disp_put_dss();
+}
+
+MODULE_AUTHOR("Texas Instruments.");
+MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
+MODULE_LICENSE("GPL");
+/* TODO -- Enabling it results in build erros, why?? */
+/*
+module_param(render_mem, uint, \
+		VID_MAX_WIDTH * VID_MAX_HEIGHT * 4 * MAX_ALLOWED_VIDBUFFERS);
+MODULE_PARM_DESC (render_mem,
+		  "Maximum rendering memory size (default 1.2MB)");
+*/
+/*module_init (omap_vout_init);*/
+late_initcall(omap_vout_init);
+module_exit(omap_vout_cleanup);

@@ -0,0 +1,199 @@
+/*
+ * drivers/media/video/omap/omap_voutdef.h
+ *
+ * Copyright (C) 2005 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 <linux/omap_vout.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
+
+/*
+ * This structure is used to store the DMA transfer parameters
+ * for VRFB hidden buffer
+ */
+struct vid_vrfb_dma {
+	int dev_id;
+	int dma_ch;
+	int req_status;
+	int tx_status;
+	wait_queue_head_t wait;
+};
+
+/* per-device data structure */
+struct omap_vout_device {
+	struct device dev;
+	struct video_device *vfd;
+	int vid;
+	int opened;
+
+	/* Power management suspend lockout stuff */
+	int suspended;
+	wait_queue_head_t suspend_wq;
+
+#ifdef DEBUG_ALLOW_WRITE
+	unsigned long framebuffer_base;
+	unsigned long framebuffer_base_phys;
+	unsigned long framebuffer_size;
+#endif
+
+	/* we don't allow to change image fmt/size once buffer has
+	 * been allocated
+	 */
+	int buffer_allocated;
+	/* allow to reuse previosuly allocated buffer which is big enough */
+	int buffer_size;
+	/* keep buffer info accross opens */
+	unsigned long buf_virt_addr[VIDEO_MAX_FRAME];
+	unsigned long buf_phy_addr[VIDEO_MAX_FRAME];
+	unsigned int buf_memory_type;
+
+	/* we don't allow to request new buffer when old buffers are
+	 * still mmaped
+	 */
+	int mmap_count;
+
+	spinlock_t vbq_lock;		/* spinlock for videobuf queues */
+	unsigned long field_count;	/* field counter for videobuf_buffer */
+
+	/* non-NULL means streaming is in progress. */
+	struct omap_vout_fh *streaming;
+
+	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 semaphore lock;
+
+	/* rotation variablse goes here */
+	unsigned long sms_rot_virt[4]; /* virtual addresss for four angles */
+					/* four angles */
+	dma_addr_t sms_rot_phy[4][4];
+
+	/* V4L2 control structure for different control id */
+	struct v4l2_control control[MAX_CID];
+	int rotation;
+	int mirror;
+
+	int bpp; /* bytes per pixel */
+	int vrfb_bpp; /* bytes per pixel with respect to VRFB */
+	unsigned int tile_aligned_psize;
+
+	struct vid_vrfb_dma vrfb_dma_tx;
+	unsigned int smsshado_phy_addr[4];
+	unsigned int smsshado_virt_addr[4];
+	unsigned int vrfb_context[4];
+	unsigned int smsshado_size;
+	unsigned char pos;
+
+	int flicker_filter;
+	int ps, vr_ps, line_length, first_int, field_id;
+	enum v4l2_memory memory;
+	struct videobuf_buffer *curFrm, *nextFrm;
+	struct list_head dma_queue;
+	u8 *queued_buf_addr[32];
+	u32 cropped_offset;
+	s32 tv_field1_offset;
+
+};
+
+/* per-filehandle data structure */
+struct omap_vout_fh {
+	struct omap_vout_device *vout;
+	enum v4l2_buf_type type;
+	struct videobuf_queue vbq;
+	int io_allowed;
+};
+
+#ifdef CONFIG_ARCH_OMAP34XX
+
+/*******************************************************************/
+/* auxiliary display buffer type */
+struct aux_disp_buf {
+	int index;
+	void *data;
+};
+
+struct aux_disp_queue_hdr {
+	int queue_depth;
+	int queued;
+	int dequeued;
+	int processed;
+	struct aux_disp_buf *aux_disp_queue;
+};
+
+/* auxiliary device data structure */
+struct omap3_aux_disp_device {
+	struct device dev;
+	struct video_device *vfd;
+	int opened;
+
+	/* Power management suspend lockout stuff */
+	int suspended;
+	wait_queue_head_t suspend_wq;
+
+#ifdef DEBUG_ALLOW_WRITE
+	unsigned long framebuffer_base;
+	unsigned long framebuffer_base_phys;
+	unsigned long framebuffer_size;
+#endif
+
+	/* we don't allow to change image fmt/size once buffer
+	 * has been allocated
+	 */
+	int buffer_allocated;
+	/* allow to reuse previosuly allocated buffer which is big enough */
+	int buffer_size;
+	/* keep buffer info accross opens */
+	unsigned long buf_virt_addr[VIDEO_MAX_FRAME];
+	unsigned long buf_phy_addr[VIDEO_MAX_FRAME];
+	unsigned int buf_memory_type;
+
+	/* we don't allow to request new buffer when old buffers
+	 * are still mmaped
+	 */
+	int mmap_count;
+
+	spinlock_t vbq_lock;		/* spinlock for videobuf queues */
+	unsigned long field_count;	/* field counter for videobuf_buffer */
+
+	/* non-NULL means streaming is in progress. */
+	struct omap_vout_fh *streaming;
+
+	struct v4l2_pix_format pix;
+	struct v4l2_rect crop;
+	struct v4l2_window win;
+	struct v4l2_framebuffer fbuf;
+
+	int mirror;
+	int rotation;
+
+	int bpp; /* bytes per pixel */
+	struct aux_disp_queue_hdr	aux_queue_hdr;
+};
+
+/* per-filehandle data structure */
+struct omap3_aux_disp_fh {
+	struct omap3_aux_disp_device *vout;
+	enum v4l2_buf_type type;
+	struct videobuf_queue vbq;
+};
+#endif
+
+#endif	/* ifndef OMAP_VOUTDEF_H */

@@ -0,0 +1,283 @@
+/*
+ * drivers/media/video/omap/omap_voutlib.c
+ *
+ * Copyright (C) 2005 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) 2004 Texas Instruments.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/smp_lock.h>
+#include <linux/kdev_t.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/videodev2.h>
+#include <linux/semaphore.h>
+
+#include <mach/omap-dss.h>
+
+/* 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 succesful, 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*/V4L2_FIELD_ANY;
+	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 succesful, 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 limitations */
+	if ((crop->height/win->w.height) >= 2) {
+		/* The maximum vertical downsizing ratio is 2:1 */
+		crop->height = win->w.height * 2;
+	}
+	if ((crop->width/win->w.width) >= 2) {
+		/* The maximum horizontal downsizing ratio is 2:1 */
+		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;
+	}
+	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 succesful, 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 (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 * crop->height) / win->w.height;
+	if (vresize > 2048)
+		vresize = 2048;
+	else if (vresize == 0)
+		vresize = 1;
+	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 * crop->width) / win->w.width;
+	if (hresize > 2048)
+		hresize = 2048;
+	else if (hresize == 0)
+		hresize = 1;
+	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;
+	}
+
+	/* Check for resizing constraints */
+	if ((try_crop.height/win->w.height) >= 2) {
+		/* The maximum vertical downsizing ratio is 2:1 */
+		try_crop.height = win->w.height * 2;
+	}
+	if ((try_crop.width/win->w.width) >= 2) {
+		/* The maximum horizontal downsizing ratio is 2:1 */
+		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;
+	}
+
+	/* 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);
+
+MODULE_AUTHOR("Texas Instruments.");
+MODULE_DESCRIPTION("OMAP Video library");
+MODULE_LICENSE("GPL");

@@ -0,0 +1,34 @@
+/*
+ * drivers/media/video/omap/omap_voutlib.h
+ *
+ * Copyright (C) 2005 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
+
+extern void omap_vout_default_crop(struct v4l2_pix_format *pix,
+		struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop);
+
+extern 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);
+
+extern int omap_vout_try_window(struct v4l2_framebuffer *fbuf,
+		struct v4l2_window *new_win);
+
+extern int omap_vout_new_window(struct v4l2_rect *crop,
+		struct v4l2_window *win, struct v4l2_framebuffer *fbuf,
+		struct v4l2_window *new_win);
+
+extern void omap_vout_new_format(struct v4l2_pix_format *pix,
+		struct v4l2_framebuffer *fbuf, struct v4l2_rect *crop,
+		struct v4l2_window *win);
+#endif	/* #ifndef OMAP_LIB_H */
+

@@ -0,0 +1,45 @@
+/*
+ * include/linux/omap_vout.h
+ *
+ * Copyright (C) 2005 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_H
+#define OMAP_VOUT_H
+
+/* This is for user apps */
+#define OMAP_VOUT_OUTPUT_LCD        4
+#define OMAP_VOUT_OUTPUT_TV         5
+#define OMAP_VOUT_GFX_DESTINATION   100
+#define OMAP_VOUT_VIDEO_SOURCE      101
+
+struct omap_vout_colorkey {
+	unsigned int output_dev;
+	unsigned int key_type;
+	unsigned int key_val;
+};
+
+struct omap_vout_bgcolor {
+	unsigned int color;
+	unsigned int output_dev;
+};
+
+struct omap_vout_colconv {
+	short int RY, RCr, RCb;
+	short int GY, GCr, GCb;
+	short int BY, BCr, BCb;
+};
+
+/* non-standard V4L2 ioctls that are specific to OMAP */
+#define VIDIOC_S_OMAP_LINK		_IOW('V', 1, int)
+#define VIDIOC_G_OMAP_LINK		_IOR('V', 2, int)
+#define VIDIOC_S_OMAP_COLORKEY		_IOW('V', 3,\
+					struct omap_vout_colorkey)
+#define VIDIOC_G_OMAP_COLORKEY		_IOW('V', 4,\
+					struct omap_vout_colorkey)
+
+#endif	/* #ifndef OMAP_VOUT_H */